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13459 lines
424 KiB
C
13459 lines
424 KiB
C
/*
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* Linux syscalls
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*
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* Copyright (c) 2003 Fabrice Bellard
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#define _ATFILE_SOURCE
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#include "qemu/osdep.h"
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#include "qemu/cutils.h"
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#include "qemu/path.h"
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#include "qemu/memfd.h"
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#include "qemu/queue.h"
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#include <elf.h>
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#include <endian.h>
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#include <grp.h>
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#include <sys/ipc.h>
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#include <sys/msg.h>
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#include <sys/wait.h>
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#include <sys/mount.h>
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#include <sys/file.h>
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#include <sys/fsuid.h>
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#include <sys/personality.h>
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#include <sys/prctl.h>
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#include <sys/resource.h>
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#include <sys/swap.h>
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#include <linux/capability.h>
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#include <sched.h>
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#include <sys/timex.h>
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#include <sys/socket.h>
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#include <linux/sockios.h>
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#include <sys/un.h>
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#include <sys/uio.h>
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#include <poll.h>
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#include <sys/times.h>
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#include <sys/shm.h>
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#include <sys/sem.h>
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#include <sys/statfs.h>
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#include <utime.h>
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#include <sys/sysinfo.h>
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#include <sys/signalfd.h>
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//#include <sys/user.h>
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#include <netinet/in.h>
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#include <netinet/ip.h>
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#include <netinet/tcp.h>
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#include <netinet/udp.h>
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#include <linux/wireless.h>
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#include <linux/icmp.h>
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#include <linux/icmpv6.h>
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#include <linux/if_tun.h>
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#include <linux/in6.h>
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#include <linux/errqueue.h>
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#include <linux/random.h>
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#ifdef CONFIG_TIMERFD
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#include <sys/timerfd.h>
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#endif
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#ifdef CONFIG_EVENTFD
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#include <sys/eventfd.h>
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#endif
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#ifdef CONFIG_EPOLL
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#include <sys/epoll.h>
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#endif
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#ifdef CONFIG_ATTR
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#include "qemu/xattr.h"
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#endif
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#ifdef CONFIG_SENDFILE
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#include <sys/sendfile.h>
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#endif
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#ifdef HAVE_SYS_KCOV_H
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#include <sys/kcov.h>
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#endif
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#define termios host_termios
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#define winsize host_winsize
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#define termio host_termio
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#define sgttyb host_sgttyb /* same as target */
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#define tchars host_tchars /* same as target */
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#define ltchars host_ltchars /* same as target */
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#include <linux/termios.h>
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#include <linux/unistd.h>
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#include <linux/cdrom.h>
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#include <linux/hdreg.h>
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#include <linux/soundcard.h>
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#include <linux/kd.h>
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#include <linux/mtio.h>
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#ifdef HAVE_SYS_MOUNT_FSCONFIG
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/*
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* glibc >= 2.36 linux/mount.h conflicts with sys/mount.h,
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* which in turn prevents use of linux/fs.h. So we have to
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* define the constants ourselves for now.
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*/
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#define FS_IOC_GETFLAGS _IOR('f', 1, long)
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#define FS_IOC_SETFLAGS _IOW('f', 2, long)
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#define FS_IOC_GETVERSION _IOR('v', 1, long)
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#define FS_IOC_SETVERSION _IOW('v', 2, long)
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#define FS_IOC_FIEMAP _IOWR('f', 11, struct fiemap)
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#define FS_IOC32_GETFLAGS _IOR('f', 1, int)
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#define FS_IOC32_SETFLAGS _IOW('f', 2, int)
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#define FS_IOC32_GETVERSION _IOR('v', 1, int)
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#define FS_IOC32_SETVERSION _IOW('v', 2, int)
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#define BLKGETSIZE64 _IOR(0x12,114,size_t)
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#define BLKDISCARD _IO(0x12,119)
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#define BLKIOMIN _IO(0x12,120)
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#define BLKIOOPT _IO(0x12,121)
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#define BLKALIGNOFF _IO(0x12,122)
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#define BLKPBSZGET _IO(0x12,123)
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#define BLKDISCARDZEROES _IO(0x12,124)
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#define BLKSECDISCARD _IO(0x12,125)
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#define BLKROTATIONAL _IO(0x12,126)
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#define BLKZEROOUT _IO(0x12,127)
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#define FIBMAP _IO(0x00,1)
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#define FIGETBSZ _IO(0x00,2)
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struct file_clone_range {
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__s64 src_fd;
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__u64 src_offset;
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__u64 src_length;
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__u64 dest_offset;
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};
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#define FICLONE _IOW(0x94, 9, int)
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#define FICLONERANGE _IOW(0x94, 13, struct file_clone_range)
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#else
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#include <linux/fs.h>
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#endif
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#include <linux/fd.h>
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#if defined(CONFIG_FIEMAP)
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#include <linux/fiemap.h>
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#endif
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#include <linux/fb.h>
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#if defined(CONFIG_USBFS)
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#include <linux/usbdevice_fs.h>
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#include <linux/usb/ch9.h>
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#endif
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#include <linux/vt.h>
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#include <linux/dm-ioctl.h>
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#include <linux/reboot.h>
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#include <linux/route.h>
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#include <linux/filter.h>
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#include <linux/blkpg.h>
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#include <netpacket/packet.h>
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#include <linux/netlink.h>
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#include <linux/if_alg.h>
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#include <linux/rtc.h>
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#include <sound/asound.h>
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#ifdef HAVE_BTRFS_H
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#include <linux/btrfs.h>
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#endif
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#ifdef HAVE_DRM_H
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#include <libdrm/drm.h>
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#include <libdrm/i915_drm.h>
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#endif
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#include <linux/binfmts.h>
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#include "linux_loop.h"
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#include "uname.h"
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#include "qemu.h"
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#include "user-internals.h"
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#include "strace.h"
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#include "signal-common.h"
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#include "loader.h"
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#include "user-mmap.h"
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#include "user/safe-syscall.h"
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#include "qemu/guest-random.h"
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#include "qemu/selfmap.h"
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#include "user/syscall-trace.h"
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#include "special-errno.h"
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#include "qapi/error.h"
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#include "fd-trans.h"
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#include "tcg/tcg.h"
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#include "cpu_loop-common.h"
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#ifndef CLONE_IO
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#define CLONE_IO 0x80000000 /* Clone io context */
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#endif
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/* We can't directly call the host clone syscall, because this will
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* badly confuse libc (breaking mutexes, for example). So we must
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* divide clone flags into:
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* * flag combinations that look like pthread_create()
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* * flag combinations that look like fork()
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* * flags we can implement within QEMU itself
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* * flags we can't support and will return an error for
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*/
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/* For thread creation, all these flags must be present; for
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* fork, none must be present.
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*/
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#define CLONE_THREAD_FLAGS \
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(CLONE_VM | CLONE_FS | CLONE_FILES | \
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CLONE_SIGHAND | CLONE_THREAD | CLONE_SYSVSEM)
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/* These flags are ignored:
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* CLONE_DETACHED is now ignored by the kernel;
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* CLONE_IO is just an optimisation hint to the I/O scheduler
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*/
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#define CLONE_IGNORED_FLAGS \
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(CLONE_DETACHED | CLONE_IO)
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/* Flags for fork which we can implement within QEMU itself */
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#define CLONE_OPTIONAL_FORK_FLAGS \
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(CLONE_SETTLS | CLONE_PARENT_SETTID | \
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CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID)
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/* Flags for thread creation which we can implement within QEMU itself */
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#define CLONE_OPTIONAL_THREAD_FLAGS \
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(CLONE_SETTLS | CLONE_PARENT_SETTID | \
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CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID | CLONE_PARENT)
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#define CLONE_INVALID_FORK_FLAGS \
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(~(CSIGNAL | CLONE_OPTIONAL_FORK_FLAGS | CLONE_IGNORED_FLAGS))
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#define CLONE_INVALID_THREAD_FLAGS \
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(~(CSIGNAL | CLONE_THREAD_FLAGS | CLONE_OPTIONAL_THREAD_FLAGS | \
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CLONE_IGNORED_FLAGS))
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/* CLONE_VFORK is special cased early in do_fork(). The other flag bits
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* have almost all been allocated. We cannot support any of
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* CLONE_NEWNS, CLONE_NEWCGROUP, CLONE_NEWUTS, CLONE_NEWIPC,
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* CLONE_NEWUSER, CLONE_NEWPID, CLONE_NEWNET, CLONE_PTRACE, CLONE_UNTRACED.
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* The checks against the invalid thread masks above will catch these.
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* (The one remaining unallocated bit is 0x1000 which used to be CLONE_PID.)
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*/
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/* Define DEBUG_ERESTARTSYS to force every syscall to be restarted
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* once. This exercises the codepaths for restart.
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*/
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//#define DEBUG_ERESTARTSYS
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//#include <linux/msdos_fs.h>
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#define VFAT_IOCTL_READDIR_BOTH \
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_IOC(_IOC_READ, 'r', 1, (sizeof(struct linux_dirent) + 256) * 2)
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#define VFAT_IOCTL_READDIR_SHORT \
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_IOC(_IOC_READ, 'r', 2, (sizeof(struct linux_dirent) + 256) * 2)
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#undef _syscall0
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#undef _syscall1
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#undef _syscall2
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#undef _syscall3
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#undef _syscall4
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#undef _syscall5
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#undef _syscall6
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#define _syscall0(type,name) \
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static type name (void) \
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{ \
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return syscall(__NR_##name); \
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}
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#define _syscall1(type,name,type1,arg1) \
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static type name (type1 arg1) \
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{ \
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return syscall(__NR_##name, arg1); \
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}
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#define _syscall2(type,name,type1,arg1,type2,arg2) \
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static type name (type1 arg1,type2 arg2) \
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{ \
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return syscall(__NR_##name, arg1, arg2); \
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}
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#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
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static type name (type1 arg1,type2 arg2,type3 arg3) \
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{ \
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return syscall(__NR_##name, arg1, arg2, arg3); \
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}
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#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
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static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4) \
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{ \
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return syscall(__NR_##name, arg1, arg2, arg3, arg4); \
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}
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#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
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type5,arg5) \
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static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
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{ \
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return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \
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}
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#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
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type5,arg5,type6,arg6) \
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static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5, \
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type6 arg6) \
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{ \
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return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \
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}
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#define __NR_sys_uname __NR_uname
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#define __NR_sys_getcwd1 __NR_getcwd
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#define __NR_sys_getdents __NR_getdents
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#define __NR_sys_getdents64 __NR_getdents64
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#define __NR_sys_getpriority __NR_getpriority
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#define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
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#define __NR_sys_rt_tgsigqueueinfo __NR_rt_tgsigqueueinfo
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#define __NR_sys_syslog __NR_syslog
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#if defined(__NR_futex)
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# define __NR_sys_futex __NR_futex
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#endif
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#if defined(__NR_futex_time64)
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# define __NR_sys_futex_time64 __NR_futex_time64
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#endif
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#define __NR_sys_statx __NR_statx
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#if defined(__alpha__) || defined(__x86_64__) || defined(__s390x__)
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#define __NR__llseek __NR_lseek
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#endif
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/* Newer kernel ports have llseek() instead of _llseek() */
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#if defined(TARGET_NR_llseek) && !defined(TARGET_NR__llseek)
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#define TARGET_NR__llseek TARGET_NR_llseek
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#endif
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/* some platforms need to mask more bits than just TARGET_O_NONBLOCK */
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#ifndef TARGET_O_NONBLOCK_MASK
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#define TARGET_O_NONBLOCK_MASK TARGET_O_NONBLOCK
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#endif
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#define __NR_sys_gettid __NR_gettid
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_syscall0(int, sys_gettid)
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/* For the 64-bit guest on 32-bit host case we must emulate
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* getdents using getdents64, because otherwise the host
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* might hand us back more dirent records than we can fit
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* into the guest buffer after structure format conversion.
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* Otherwise we emulate getdents with getdents if the host has it.
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*/
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#if defined(__NR_getdents) && HOST_LONG_BITS >= TARGET_ABI_BITS
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#define EMULATE_GETDENTS_WITH_GETDENTS
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#endif
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#if defined(TARGET_NR_getdents) && defined(EMULATE_GETDENTS_WITH_GETDENTS)
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_syscall3(int, sys_getdents, uint, fd, struct linux_dirent *, dirp, uint, count);
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#endif
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#if (defined(TARGET_NR_getdents) && \
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!defined(EMULATE_GETDENTS_WITH_GETDENTS)) || \
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(defined(TARGET_NR_getdents64) && defined(__NR_getdents64))
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_syscall3(int, sys_getdents64, uint, fd, struct linux_dirent64 *, dirp, uint, count);
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#endif
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#if defined(TARGET_NR__llseek) && defined(__NR_llseek)
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_syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo,
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loff_t *, res, uint, wh);
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#endif
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_syscall3(int, sys_rt_sigqueueinfo, pid_t, pid, int, sig, siginfo_t *, uinfo)
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_syscall4(int, sys_rt_tgsigqueueinfo, pid_t, pid, pid_t, tid, int, sig,
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siginfo_t *, uinfo)
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_syscall3(int,sys_syslog,int,type,char*,bufp,int,len)
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#ifdef __NR_exit_group
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_syscall1(int,exit_group,int,error_code)
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#endif
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#if defined(__NR_close_range) && defined(TARGET_NR_close_range)
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#define __NR_sys_close_range __NR_close_range
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_syscall3(int,sys_close_range,int,first,int,last,int,flags)
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#ifndef CLOSE_RANGE_CLOEXEC
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#define CLOSE_RANGE_CLOEXEC (1U << 2)
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#endif
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#endif
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#if defined(__NR_futex)
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_syscall6(int,sys_futex,int *,uaddr,int,op,int,val,
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const struct timespec *,timeout,int *,uaddr2,int,val3)
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#endif
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#if defined(__NR_futex_time64)
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_syscall6(int,sys_futex_time64,int *,uaddr,int,op,int,val,
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const struct timespec *,timeout,int *,uaddr2,int,val3)
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#endif
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#if defined(__NR_pidfd_open) && defined(TARGET_NR_pidfd_open)
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_syscall2(int, pidfd_open, pid_t, pid, unsigned int, flags);
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#endif
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#if defined(__NR_pidfd_send_signal) && defined(TARGET_NR_pidfd_send_signal)
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_syscall4(int, pidfd_send_signal, int, pidfd, int, sig, siginfo_t *, info,
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unsigned int, flags);
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#endif
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#if defined(__NR_pidfd_getfd) && defined(TARGET_NR_pidfd_getfd)
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_syscall3(int, pidfd_getfd, int, pidfd, int, targetfd, unsigned int, flags);
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#endif
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#define __NR_sys_sched_getaffinity __NR_sched_getaffinity
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_syscall3(int, sys_sched_getaffinity, pid_t, pid, unsigned int, len,
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unsigned long *, user_mask_ptr);
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#define __NR_sys_sched_setaffinity __NR_sched_setaffinity
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_syscall3(int, sys_sched_setaffinity, pid_t, pid, unsigned int, len,
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unsigned long *, user_mask_ptr);
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/* sched_attr is not defined in glibc */
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struct sched_attr {
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uint32_t size;
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uint32_t sched_policy;
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uint64_t sched_flags;
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int32_t sched_nice;
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uint32_t sched_priority;
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uint64_t sched_runtime;
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uint64_t sched_deadline;
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uint64_t sched_period;
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uint32_t sched_util_min;
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uint32_t sched_util_max;
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};
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#define __NR_sys_sched_getattr __NR_sched_getattr
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_syscall4(int, sys_sched_getattr, pid_t, pid, struct sched_attr *, attr,
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unsigned int, size, unsigned int, flags);
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#define __NR_sys_sched_setattr __NR_sched_setattr
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_syscall3(int, sys_sched_setattr, pid_t, pid, struct sched_attr *, attr,
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unsigned int, flags);
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#define __NR_sys_sched_getscheduler __NR_sched_getscheduler
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_syscall1(int, sys_sched_getscheduler, pid_t, pid);
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#define __NR_sys_sched_setscheduler __NR_sched_setscheduler
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_syscall3(int, sys_sched_setscheduler, pid_t, pid, int, policy,
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const struct sched_param *, param);
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#define __NR_sys_sched_getparam __NR_sched_getparam
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_syscall2(int, sys_sched_getparam, pid_t, pid,
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struct sched_param *, param);
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#define __NR_sys_sched_setparam __NR_sched_setparam
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_syscall2(int, sys_sched_setparam, pid_t, pid,
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const struct sched_param *, param);
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#define __NR_sys_getcpu __NR_getcpu
|
|
_syscall3(int, sys_getcpu, unsigned *, cpu, unsigned *, node, void *, tcache);
|
|
_syscall4(int, reboot, int, magic1, int, magic2, unsigned int, cmd,
|
|
void *, arg);
|
|
_syscall2(int, capget, struct __user_cap_header_struct *, header,
|
|
struct __user_cap_data_struct *, data);
|
|
_syscall2(int, capset, struct __user_cap_header_struct *, header,
|
|
struct __user_cap_data_struct *, data);
|
|
#if defined(TARGET_NR_ioprio_get) && defined(__NR_ioprio_get)
|
|
_syscall2(int, ioprio_get, int, which, int, who)
|
|
#endif
|
|
#if defined(TARGET_NR_ioprio_set) && defined(__NR_ioprio_set)
|
|
_syscall3(int, ioprio_set, int, which, int, who, int, ioprio)
|
|
#endif
|
|
#if defined(TARGET_NR_getrandom) && defined(__NR_getrandom)
|
|
_syscall3(int, getrandom, void *, buf, size_t, buflen, unsigned int, flags)
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_kcmp) && defined(__NR_kcmp)
|
|
_syscall5(int, kcmp, pid_t, pid1, pid_t, pid2, int, type,
|
|
unsigned long, idx1, unsigned long, idx2)
|
|
#endif
|
|
|
|
/*
|
|
* It is assumed that struct statx is architecture independent.
|
|
*/
|
|
#if defined(TARGET_NR_statx) && defined(__NR_statx)
|
|
_syscall5(int, sys_statx, int, dirfd, const char *, pathname, int, flags,
|
|
unsigned int, mask, struct target_statx *, statxbuf)
|
|
#endif
|
|
#if defined(TARGET_NR_membarrier) && defined(__NR_membarrier)
|
|
_syscall2(int, membarrier, int, cmd, int, flags)
|
|
#endif
|
|
|
|
static const bitmask_transtbl fcntl_flags_tbl[] = {
|
|
{ TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, },
|
|
{ TARGET_O_ACCMODE, TARGET_O_RDWR, O_ACCMODE, O_RDWR, },
|
|
{ TARGET_O_CREAT, TARGET_O_CREAT, O_CREAT, O_CREAT, },
|
|
{ TARGET_O_EXCL, TARGET_O_EXCL, O_EXCL, O_EXCL, },
|
|
{ TARGET_O_NOCTTY, TARGET_O_NOCTTY, O_NOCTTY, O_NOCTTY, },
|
|
{ TARGET_O_TRUNC, TARGET_O_TRUNC, O_TRUNC, O_TRUNC, },
|
|
{ TARGET_O_APPEND, TARGET_O_APPEND, O_APPEND, O_APPEND, },
|
|
{ TARGET_O_NONBLOCK, TARGET_O_NONBLOCK, O_NONBLOCK, O_NONBLOCK, },
|
|
{ TARGET_O_SYNC, TARGET_O_DSYNC, O_SYNC, O_DSYNC, },
|
|
{ TARGET_O_SYNC, TARGET_O_SYNC, O_SYNC, O_SYNC, },
|
|
{ TARGET_FASYNC, TARGET_FASYNC, FASYNC, FASYNC, },
|
|
{ TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, },
|
|
{ TARGET_O_NOFOLLOW, TARGET_O_NOFOLLOW, O_NOFOLLOW, O_NOFOLLOW, },
|
|
#if defined(O_DIRECT)
|
|
{ TARGET_O_DIRECT, TARGET_O_DIRECT, O_DIRECT, O_DIRECT, },
|
|
#endif
|
|
#if defined(O_NOATIME)
|
|
{ TARGET_O_NOATIME, TARGET_O_NOATIME, O_NOATIME, O_NOATIME },
|
|
#endif
|
|
#if defined(O_CLOEXEC)
|
|
{ TARGET_O_CLOEXEC, TARGET_O_CLOEXEC, O_CLOEXEC, O_CLOEXEC },
|
|
#endif
|
|
#if defined(O_PATH)
|
|
{ TARGET_O_PATH, TARGET_O_PATH, O_PATH, O_PATH },
|
|
#endif
|
|
#if defined(O_TMPFILE)
|
|
{ TARGET_O_TMPFILE, TARGET_O_TMPFILE, O_TMPFILE, O_TMPFILE },
|
|
#endif
|
|
/* Don't terminate the list prematurely on 64-bit host+guest. */
|
|
#if TARGET_O_LARGEFILE != 0 || O_LARGEFILE != 0
|
|
{ TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, },
|
|
#endif
|
|
{ 0, 0, 0, 0 }
|
|
};
|
|
|
|
_syscall2(int, sys_getcwd1, char *, buf, size_t, size)
|
|
|
|
#if defined(TARGET_NR_utimensat) || defined(TARGET_NR_utimensat_time64)
|
|
#if defined(__NR_utimensat)
|
|
#define __NR_sys_utimensat __NR_utimensat
|
|
_syscall4(int,sys_utimensat,int,dirfd,const char *,pathname,
|
|
const struct timespec *,tsp,int,flags)
|
|
#else
|
|
static int sys_utimensat(int dirfd, const char *pathname,
|
|
const struct timespec times[2], int flags)
|
|
{
|
|
errno = ENOSYS;
|
|
return -1;
|
|
}
|
|
#endif
|
|
#endif /* TARGET_NR_utimensat */
|
|
|
|
#ifdef TARGET_NR_renameat2
|
|
#if defined(__NR_renameat2)
|
|
#define __NR_sys_renameat2 __NR_renameat2
|
|
_syscall5(int, sys_renameat2, int, oldfd, const char *, old, int, newfd,
|
|
const char *, new, unsigned int, flags)
|
|
#else
|
|
static int sys_renameat2(int oldfd, const char *old,
|
|
int newfd, const char *new, int flags)
|
|
{
|
|
if (flags == 0) {
|
|
return renameat(oldfd, old, newfd, new);
|
|
}
|
|
errno = ENOSYS;
|
|
return -1;
|
|
}
|
|
#endif
|
|
#endif /* TARGET_NR_renameat2 */
|
|
|
|
#ifdef CONFIG_INOTIFY
|
|
#include <sys/inotify.h>
|
|
#else
|
|
/* Userspace can usually survive runtime without inotify */
|
|
#undef TARGET_NR_inotify_init
|
|
#undef TARGET_NR_inotify_init1
|
|
#undef TARGET_NR_inotify_add_watch
|
|
#undef TARGET_NR_inotify_rm_watch
|
|
#endif /* CONFIG_INOTIFY */
|
|
|
|
#if defined(TARGET_NR_prlimit64)
|
|
#ifndef __NR_prlimit64
|
|
# define __NR_prlimit64 -1
|
|
#endif
|
|
#define __NR_sys_prlimit64 __NR_prlimit64
|
|
/* The glibc rlimit structure may not be that used by the underlying syscall */
|
|
struct host_rlimit64 {
|
|
uint64_t rlim_cur;
|
|
uint64_t rlim_max;
|
|
};
|
|
_syscall4(int, sys_prlimit64, pid_t, pid, int, resource,
|
|
const struct host_rlimit64 *, new_limit,
|
|
struct host_rlimit64 *, old_limit)
|
|
#endif
|
|
|
|
|
|
#if defined(TARGET_NR_timer_create)
|
|
/* Maximum of 32 active POSIX timers allowed at any one time. */
|
|
#define GUEST_TIMER_MAX 32
|
|
static timer_t g_posix_timers[GUEST_TIMER_MAX];
|
|
static int g_posix_timer_allocated[GUEST_TIMER_MAX];
|
|
|
|
static inline int next_free_host_timer(void)
|
|
{
|
|
int k;
|
|
for (k = 0; k < ARRAY_SIZE(g_posix_timer_allocated); k++) {
|
|
if (qatomic_xchg(g_posix_timer_allocated + k, 1) == 0) {
|
|
return k;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
static inline void free_host_timer_slot(int id)
|
|
{
|
|
qatomic_store_release(g_posix_timer_allocated + id, 0);
|
|
}
|
|
#endif
|
|
|
|
static inline int host_to_target_errno(int host_errno)
|
|
{
|
|
switch (host_errno) {
|
|
#define E(X) case X: return TARGET_##X;
|
|
#include "errnos.c.inc"
|
|
#undef E
|
|
default:
|
|
return host_errno;
|
|
}
|
|
}
|
|
|
|
static inline int target_to_host_errno(int target_errno)
|
|
{
|
|
switch (target_errno) {
|
|
#define E(X) case TARGET_##X: return X;
|
|
#include "errnos.c.inc"
|
|
#undef E
|
|
default:
|
|
return target_errno;
|
|
}
|
|
}
|
|
|
|
abi_long get_errno(abi_long ret)
|
|
{
|
|
if (ret == -1)
|
|
return -host_to_target_errno(errno);
|
|
else
|
|
return ret;
|
|
}
|
|
|
|
const char *target_strerror(int err)
|
|
{
|
|
if (err == QEMU_ERESTARTSYS) {
|
|
return "To be restarted";
|
|
}
|
|
if (err == QEMU_ESIGRETURN) {
|
|
return "Successful exit from sigreturn";
|
|
}
|
|
|
|
return strerror(target_to_host_errno(err));
|
|
}
|
|
|
|
static int check_zeroed_user(abi_long addr, size_t ksize, size_t usize)
|
|
{
|
|
int i;
|
|
uint8_t b;
|
|
if (usize <= ksize) {
|
|
return 1;
|
|
}
|
|
for (i = ksize; i < usize; i++) {
|
|
if (get_user_u8(b, addr + i)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
if (b != 0) {
|
|
return 0;
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
#define safe_syscall0(type, name) \
|
|
static type safe_##name(void) \
|
|
{ \
|
|
return safe_syscall(__NR_##name); \
|
|
}
|
|
|
|
#define safe_syscall1(type, name, type1, arg1) \
|
|
static type safe_##name(type1 arg1) \
|
|
{ \
|
|
return safe_syscall(__NR_##name, arg1); \
|
|
}
|
|
|
|
#define safe_syscall2(type, name, type1, arg1, type2, arg2) \
|
|
static type safe_##name(type1 arg1, type2 arg2) \
|
|
{ \
|
|
return safe_syscall(__NR_##name, arg1, arg2); \
|
|
}
|
|
|
|
#define safe_syscall3(type, name, type1, arg1, type2, arg2, type3, arg3) \
|
|
static type safe_##name(type1 arg1, type2 arg2, type3 arg3) \
|
|
{ \
|
|
return safe_syscall(__NR_##name, arg1, arg2, arg3); \
|
|
}
|
|
|
|
#define safe_syscall4(type, name, type1, arg1, type2, arg2, type3, arg3, \
|
|
type4, arg4) \
|
|
static type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
|
|
{ \
|
|
return safe_syscall(__NR_##name, arg1, arg2, arg3, arg4); \
|
|
}
|
|
|
|
#define safe_syscall5(type, name, type1, arg1, type2, arg2, type3, arg3, \
|
|
type4, arg4, type5, arg5) \
|
|
static type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \
|
|
type5 arg5) \
|
|
{ \
|
|
return safe_syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \
|
|
}
|
|
|
|
#define safe_syscall6(type, name, type1, arg1, type2, arg2, type3, arg3, \
|
|
type4, arg4, type5, arg5, type6, arg6) \
|
|
static type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \
|
|
type5 arg5, type6 arg6) \
|
|
{ \
|
|
return safe_syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \
|
|
}
|
|
|
|
safe_syscall3(ssize_t, read, int, fd, void *, buff, size_t, count)
|
|
safe_syscall3(ssize_t, write, int, fd, const void *, buff, size_t, count)
|
|
safe_syscall4(int, openat, int, dirfd, const char *, pathname, \
|
|
int, flags, mode_t, mode)
|
|
#if defined(TARGET_NR_wait4) || defined(TARGET_NR_waitpid)
|
|
safe_syscall4(pid_t, wait4, pid_t, pid, int *, status, int, options, \
|
|
struct rusage *, rusage)
|
|
#endif
|
|
safe_syscall5(int, waitid, idtype_t, idtype, id_t, id, siginfo_t *, infop, \
|
|
int, options, struct rusage *, rusage)
|
|
safe_syscall3(int, execve, const char *, filename, char **, argv, char **, envp)
|
|
#if defined(TARGET_NR_select) || defined(TARGET_NR__newselect) || \
|
|
defined(TARGET_NR_pselect6) || defined(TARGET_NR_pselect6_time64)
|
|
safe_syscall6(int, pselect6, int, nfds, fd_set *, readfds, fd_set *, writefds, \
|
|
fd_set *, exceptfds, struct timespec *, timeout, void *, sig)
|
|
#endif
|
|
#if defined(TARGET_NR_ppoll) || defined(TARGET_NR_ppoll_time64)
|
|
safe_syscall5(int, ppoll, struct pollfd *, ufds, unsigned int, nfds,
|
|
struct timespec *, tsp, const sigset_t *, sigmask,
|
|
size_t, sigsetsize)
|
|
#endif
|
|
safe_syscall6(int, epoll_pwait, int, epfd, struct epoll_event *, events,
|
|
int, maxevents, int, timeout, const sigset_t *, sigmask,
|
|
size_t, sigsetsize)
|
|
#if defined(__NR_futex)
|
|
safe_syscall6(int,futex,int *,uaddr,int,op,int,val, \
|
|
const struct timespec *,timeout,int *,uaddr2,int,val3)
|
|
#endif
|
|
#if defined(__NR_futex_time64)
|
|
safe_syscall6(int,futex_time64,int *,uaddr,int,op,int,val, \
|
|
const struct timespec *,timeout,int *,uaddr2,int,val3)
|
|
#endif
|
|
safe_syscall2(int, rt_sigsuspend, sigset_t *, newset, size_t, sigsetsize)
|
|
safe_syscall2(int, kill, pid_t, pid, int, sig)
|
|
safe_syscall2(int, tkill, int, tid, int, sig)
|
|
safe_syscall3(int, tgkill, int, tgid, int, pid, int, sig)
|
|
safe_syscall3(ssize_t, readv, int, fd, const struct iovec *, iov, int, iovcnt)
|
|
safe_syscall3(ssize_t, writev, int, fd, const struct iovec *, iov, int, iovcnt)
|
|
safe_syscall5(ssize_t, preadv, int, fd, const struct iovec *, iov, int, iovcnt,
|
|
unsigned long, pos_l, unsigned long, pos_h)
|
|
safe_syscall5(ssize_t, pwritev, int, fd, const struct iovec *, iov, int, iovcnt,
|
|
unsigned long, pos_l, unsigned long, pos_h)
|
|
safe_syscall3(int, connect, int, fd, const struct sockaddr *, addr,
|
|
socklen_t, addrlen)
|
|
safe_syscall6(ssize_t, sendto, int, fd, const void *, buf, size_t, len,
|
|
int, flags, const struct sockaddr *, addr, socklen_t, addrlen)
|
|
safe_syscall6(ssize_t, recvfrom, int, fd, void *, buf, size_t, len,
|
|
int, flags, struct sockaddr *, addr, socklen_t *, addrlen)
|
|
safe_syscall3(ssize_t, sendmsg, int, fd, const struct msghdr *, msg, int, flags)
|
|
safe_syscall3(ssize_t, recvmsg, int, fd, struct msghdr *, msg, int, flags)
|
|
safe_syscall2(int, flock, int, fd, int, operation)
|
|
#if defined(TARGET_NR_rt_sigtimedwait) || defined(TARGET_NR_rt_sigtimedwait_time64)
|
|
safe_syscall4(int, rt_sigtimedwait, const sigset_t *, these, siginfo_t *, uinfo,
|
|
const struct timespec *, uts, size_t, sigsetsize)
|
|
#endif
|
|
safe_syscall4(int, accept4, int, fd, struct sockaddr *, addr, socklen_t *, len,
|
|
int, flags)
|
|
#if defined(TARGET_NR_nanosleep)
|
|
safe_syscall2(int, nanosleep, const struct timespec *, req,
|
|
struct timespec *, rem)
|
|
#endif
|
|
#if defined(TARGET_NR_clock_nanosleep) || \
|
|
defined(TARGET_NR_clock_nanosleep_time64)
|
|
safe_syscall4(int, clock_nanosleep, const clockid_t, clock, int, flags,
|
|
const struct timespec *, req, struct timespec *, rem)
|
|
#endif
|
|
#ifdef __NR_ipc
|
|
#ifdef __s390x__
|
|
safe_syscall5(int, ipc, int, call, long, first, long, second, long, third,
|
|
void *, ptr)
|
|
#else
|
|
safe_syscall6(int, ipc, int, call, long, first, long, second, long, third,
|
|
void *, ptr, long, fifth)
|
|
#endif
|
|
#endif
|
|
#ifdef __NR_msgsnd
|
|
safe_syscall4(int, msgsnd, int, msgid, const void *, msgp, size_t, sz,
|
|
int, flags)
|
|
#endif
|
|
#ifdef __NR_msgrcv
|
|
safe_syscall5(int, msgrcv, int, msgid, void *, msgp, size_t, sz,
|
|
long, msgtype, int, flags)
|
|
#endif
|
|
#ifdef __NR_semtimedop
|
|
safe_syscall4(int, semtimedop, int, semid, struct sembuf *, tsops,
|
|
unsigned, nsops, const struct timespec *, timeout)
|
|
#endif
|
|
#if defined(TARGET_NR_mq_timedsend) || \
|
|
defined(TARGET_NR_mq_timedsend_time64)
|
|
safe_syscall5(int, mq_timedsend, int, mqdes, const char *, msg_ptr,
|
|
size_t, len, unsigned, prio, const struct timespec *, timeout)
|
|
#endif
|
|
#if defined(TARGET_NR_mq_timedreceive) || \
|
|
defined(TARGET_NR_mq_timedreceive_time64)
|
|
safe_syscall5(int, mq_timedreceive, int, mqdes, char *, msg_ptr,
|
|
size_t, len, unsigned *, prio, const struct timespec *, timeout)
|
|
#endif
|
|
#if defined(TARGET_NR_copy_file_range) && defined(__NR_copy_file_range)
|
|
safe_syscall6(ssize_t, copy_file_range, int, infd, loff_t *, pinoff,
|
|
int, outfd, loff_t *, poutoff, size_t, length,
|
|
unsigned int, flags)
|
|
#endif
|
|
|
|
/* We do ioctl like this rather than via safe_syscall3 to preserve the
|
|
* "third argument might be integer or pointer or not present" behaviour of
|
|
* the libc function.
|
|
*/
|
|
#define safe_ioctl(...) safe_syscall(__NR_ioctl, __VA_ARGS__)
|
|
/* Similarly for fcntl. Note that callers must always:
|
|
* pass the F_GETLK64 etc constants rather than the unsuffixed F_GETLK
|
|
* use the flock64 struct rather than unsuffixed flock
|
|
* This will then work and use a 64-bit offset for both 32-bit and 64-bit hosts.
|
|
*/
|
|
#ifdef __NR_fcntl64
|
|
#define safe_fcntl(...) safe_syscall(__NR_fcntl64, __VA_ARGS__)
|
|
#else
|
|
#define safe_fcntl(...) safe_syscall(__NR_fcntl, __VA_ARGS__)
|
|
#endif
|
|
|
|
static inline int host_to_target_sock_type(int host_type)
|
|
{
|
|
int target_type;
|
|
|
|
switch (host_type & 0xf /* SOCK_TYPE_MASK */) {
|
|
case SOCK_DGRAM:
|
|
target_type = TARGET_SOCK_DGRAM;
|
|
break;
|
|
case SOCK_STREAM:
|
|
target_type = TARGET_SOCK_STREAM;
|
|
break;
|
|
default:
|
|
target_type = host_type & 0xf /* SOCK_TYPE_MASK */;
|
|
break;
|
|
}
|
|
|
|
#if defined(SOCK_CLOEXEC)
|
|
if (host_type & SOCK_CLOEXEC) {
|
|
target_type |= TARGET_SOCK_CLOEXEC;
|
|
}
|
|
#endif
|
|
|
|
#if defined(SOCK_NONBLOCK)
|
|
if (host_type & SOCK_NONBLOCK) {
|
|
target_type |= TARGET_SOCK_NONBLOCK;
|
|
}
|
|
#endif
|
|
|
|
return target_type;
|
|
}
|
|
|
|
static abi_ulong target_brk;
|
|
static abi_ulong target_original_brk;
|
|
static abi_ulong brk_page;
|
|
|
|
void target_set_brk(abi_ulong new_brk)
|
|
{
|
|
target_original_brk = target_brk = HOST_PAGE_ALIGN(new_brk);
|
|
brk_page = HOST_PAGE_ALIGN(target_brk);
|
|
}
|
|
|
|
//#define DEBUGF_BRK(message, args...) do { fprintf(stderr, (message), ## args); } while (0)
|
|
#define DEBUGF_BRK(message, args...)
|
|
|
|
/* do_brk() must return target values and target errnos. */
|
|
abi_long do_brk(abi_ulong new_brk)
|
|
{
|
|
abi_long mapped_addr;
|
|
abi_ulong new_alloc_size;
|
|
|
|
/* brk pointers are always untagged */
|
|
|
|
DEBUGF_BRK("do_brk(" TARGET_ABI_FMT_lx ") -> ", new_brk);
|
|
|
|
if (!new_brk) {
|
|
DEBUGF_BRK(TARGET_ABI_FMT_lx " (!new_brk)\n", target_brk);
|
|
return target_brk;
|
|
}
|
|
if (new_brk < target_original_brk) {
|
|
DEBUGF_BRK(TARGET_ABI_FMT_lx " (new_brk < target_original_brk)\n",
|
|
target_brk);
|
|
return target_brk;
|
|
}
|
|
|
|
/* If the new brk is less than the highest page reserved to the
|
|
* target heap allocation, set it and we're almost done... */
|
|
if (new_brk <= brk_page) {
|
|
/* Heap contents are initialized to zero, as for anonymous
|
|
* mapped pages. */
|
|
if (new_brk > target_brk) {
|
|
memset(g2h_untagged(target_brk), 0, new_brk - target_brk);
|
|
}
|
|
target_brk = new_brk;
|
|
DEBUGF_BRK(TARGET_ABI_FMT_lx " (new_brk <= brk_page)\n", target_brk);
|
|
return target_brk;
|
|
}
|
|
|
|
/* We need to allocate more memory after the brk... Note that
|
|
* we don't use MAP_FIXED because that will map over the top of
|
|
* any existing mapping (like the one with the host libc or qemu
|
|
* itself); instead we treat "mapped but at wrong address" as
|
|
* a failure and unmap again.
|
|
*/
|
|
new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page);
|
|
mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size,
|
|
PROT_READ|PROT_WRITE,
|
|
MAP_ANON|MAP_PRIVATE, 0, 0));
|
|
|
|
if (mapped_addr == brk_page) {
|
|
/* Heap contents are initialized to zero, as for anonymous
|
|
* mapped pages. Technically the new pages are already
|
|
* initialized to zero since they *are* anonymous mapped
|
|
* pages, however we have to take care with the contents that
|
|
* come from the remaining part of the previous page: it may
|
|
* contains garbage data due to a previous heap usage (grown
|
|
* then shrunken). */
|
|
memset(g2h_untagged(target_brk), 0, brk_page - target_brk);
|
|
|
|
target_brk = new_brk;
|
|
brk_page = HOST_PAGE_ALIGN(target_brk);
|
|
DEBUGF_BRK(TARGET_ABI_FMT_lx " (mapped_addr == brk_page)\n",
|
|
target_brk);
|
|
return target_brk;
|
|
} else if (mapped_addr != -1) {
|
|
/* Mapped but at wrong address, meaning there wasn't actually
|
|
* enough space for this brk.
|
|
*/
|
|
target_munmap(mapped_addr, new_alloc_size);
|
|
mapped_addr = -1;
|
|
DEBUGF_BRK(TARGET_ABI_FMT_lx " (mapped_addr != -1)\n", target_brk);
|
|
}
|
|
else {
|
|
DEBUGF_BRK(TARGET_ABI_FMT_lx " (otherwise)\n", target_brk);
|
|
}
|
|
|
|
#if defined(TARGET_ALPHA)
|
|
/* We (partially) emulate OSF/1 on Alpha, which requires we
|
|
return a proper errno, not an unchanged brk value. */
|
|
return -TARGET_ENOMEM;
|
|
#endif
|
|
/* For everything else, return the previous break. */
|
|
return target_brk;
|
|
}
|
|
|
|
#if defined(TARGET_NR_select) || defined(TARGET_NR__newselect) || \
|
|
defined(TARGET_NR_pselect6) || defined(TARGET_NR_pselect6_time64)
|
|
static inline abi_long copy_from_user_fdset(fd_set *fds,
|
|
abi_ulong target_fds_addr,
|
|
int n)
|
|
{
|
|
int i, nw, j, k;
|
|
abi_ulong b, *target_fds;
|
|
|
|
nw = DIV_ROUND_UP(n, TARGET_ABI_BITS);
|
|
if (!(target_fds = lock_user(VERIFY_READ,
|
|
target_fds_addr,
|
|
sizeof(abi_ulong) * nw,
|
|
1)))
|
|
return -TARGET_EFAULT;
|
|
|
|
FD_ZERO(fds);
|
|
k = 0;
|
|
for (i = 0; i < nw; i++) {
|
|
/* grab the abi_ulong */
|
|
__get_user(b, &target_fds[i]);
|
|
for (j = 0; j < TARGET_ABI_BITS; j++) {
|
|
/* check the bit inside the abi_ulong */
|
|
if ((b >> j) & 1)
|
|
FD_SET(k, fds);
|
|
k++;
|
|
}
|
|
}
|
|
|
|
unlock_user(target_fds, target_fds_addr, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_ulong copy_from_user_fdset_ptr(fd_set *fds, fd_set **fds_ptr,
|
|
abi_ulong target_fds_addr,
|
|
int n)
|
|
{
|
|
if (target_fds_addr) {
|
|
if (copy_from_user_fdset(fds, target_fds_addr, n))
|
|
return -TARGET_EFAULT;
|
|
*fds_ptr = fds;
|
|
} else {
|
|
*fds_ptr = NULL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long copy_to_user_fdset(abi_ulong target_fds_addr,
|
|
const fd_set *fds,
|
|
int n)
|
|
{
|
|
int i, nw, j, k;
|
|
abi_long v;
|
|
abi_ulong *target_fds;
|
|
|
|
nw = DIV_ROUND_UP(n, TARGET_ABI_BITS);
|
|
if (!(target_fds = lock_user(VERIFY_WRITE,
|
|
target_fds_addr,
|
|
sizeof(abi_ulong) * nw,
|
|
0)))
|
|
return -TARGET_EFAULT;
|
|
|
|
k = 0;
|
|
for (i = 0; i < nw; i++) {
|
|
v = 0;
|
|
for (j = 0; j < TARGET_ABI_BITS; j++) {
|
|
v |= ((abi_ulong)(FD_ISSET(k, fds) != 0) << j);
|
|
k++;
|
|
}
|
|
__put_user(v, &target_fds[i]);
|
|
}
|
|
|
|
unlock_user(target_fds, target_fds_addr, sizeof(abi_ulong) * nw);
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#if defined(__alpha__)
|
|
#define HOST_HZ 1024
|
|
#else
|
|
#define HOST_HZ 100
|
|
#endif
|
|
|
|
static inline abi_long host_to_target_clock_t(long ticks)
|
|
{
|
|
#if HOST_HZ == TARGET_HZ
|
|
return ticks;
|
|
#else
|
|
return ((int64_t)ticks * TARGET_HZ) / HOST_HZ;
|
|
#endif
|
|
}
|
|
|
|
static inline abi_long host_to_target_rusage(abi_ulong target_addr,
|
|
const struct rusage *rusage)
|
|
{
|
|
struct target_rusage *target_rusage;
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, target_rusage, target_addr, 0))
|
|
return -TARGET_EFAULT;
|
|
target_rusage->ru_utime.tv_sec = tswapal(rusage->ru_utime.tv_sec);
|
|
target_rusage->ru_utime.tv_usec = tswapal(rusage->ru_utime.tv_usec);
|
|
target_rusage->ru_stime.tv_sec = tswapal(rusage->ru_stime.tv_sec);
|
|
target_rusage->ru_stime.tv_usec = tswapal(rusage->ru_stime.tv_usec);
|
|
target_rusage->ru_maxrss = tswapal(rusage->ru_maxrss);
|
|
target_rusage->ru_ixrss = tswapal(rusage->ru_ixrss);
|
|
target_rusage->ru_idrss = tswapal(rusage->ru_idrss);
|
|
target_rusage->ru_isrss = tswapal(rusage->ru_isrss);
|
|
target_rusage->ru_minflt = tswapal(rusage->ru_minflt);
|
|
target_rusage->ru_majflt = tswapal(rusage->ru_majflt);
|
|
target_rusage->ru_nswap = tswapal(rusage->ru_nswap);
|
|
target_rusage->ru_inblock = tswapal(rusage->ru_inblock);
|
|
target_rusage->ru_oublock = tswapal(rusage->ru_oublock);
|
|
target_rusage->ru_msgsnd = tswapal(rusage->ru_msgsnd);
|
|
target_rusage->ru_msgrcv = tswapal(rusage->ru_msgrcv);
|
|
target_rusage->ru_nsignals = tswapal(rusage->ru_nsignals);
|
|
target_rusage->ru_nvcsw = tswapal(rusage->ru_nvcsw);
|
|
target_rusage->ru_nivcsw = tswapal(rusage->ru_nivcsw);
|
|
unlock_user_struct(target_rusage, target_addr, 1);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef TARGET_NR_setrlimit
|
|
static inline rlim_t target_to_host_rlim(abi_ulong target_rlim)
|
|
{
|
|
abi_ulong target_rlim_swap;
|
|
rlim_t result;
|
|
|
|
target_rlim_swap = tswapal(target_rlim);
|
|
if (target_rlim_swap == TARGET_RLIM_INFINITY)
|
|
return RLIM_INFINITY;
|
|
|
|
result = target_rlim_swap;
|
|
if (target_rlim_swap != (rlim_t)result)
|
|
return RLIM_INFINITY;
|
|
|
|
return result;
|
|
}
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_getrlimit) || defined(TARGET_NR_ugetrlimit)
|
|
static inline abi_ulong host_to_target_rlim(rlim_t rlim)
|
|
{
|
|
abi_ulong target_rlim_swap;
|
|
abi_ulong result;
|
|
|
|
if (rlim == RLIM_INFINITY || rlim != (abi_long)rlim)
|
|
target_rlim_swap = TARGET_RLIM_INFINITY;
|
|
else
|
|
target_rlim_swap = rlim;
|
|
result = tswapal(target_rlim_swap);
|
|
|
|
return result;
|
|
}
|
|
#endif
|
|
|
|
static inline int target_to_host_resource(int code)
|
|
{
|
|
switch (code) {
|
|
case TARGET_RLIMIT_AS:
|
|
return RLIMIT_AS;
|
|
case TARGET_RLIMIT_CORE:
|
|
return RLIMIT_CORE;
|
|
case TARGET_RLIMIT_CPU:
|
|
return RLIMIT_CPU;
|
|
case TARGET_RLIMIT_DATA:
|
|
return RLIMIT_DATA;
|
|
case TARGET_RLIMIT_FSIZE:
|
|
return RLIMIT_FSIZE;
|
|
case TARGET_RLIMIT_LOCKS:
|
|
return RLIMIT_LOCKS;
|
|
case TARGET_RLIMIT_MEMLOCK:
|
|
return RLIMIT_MEMLOCK;
|
|
case TARGET_RLIMIT_MSGQUEUE:
|
|
return RLIMIT_MSGQUEUE;
|
|
case TARGET_RLIMIT_NICE:
|
|
return RLIMIT_NICE;
|
|
case TARGET_RLIMIT_NOFILE:
|
|
return RLIMIT_NOFILE;
|
|
case TARGET_RLIMIT_NPROC:
|
|
return RLIMIT_NPROC;
|
|
case TARGET_RLIMIT_RSS:
|
|
return RLIMIT_RSS;
|
|
case TARGET_RLIMIT_RTPRIO:
|
|
return RLIMIT_RTPRIO;
|
|
#ifdef RLIMIT_RTTIME
|
|
case TARGET_RLIMIT_RTTIME:
|
|
return RLIMIT_RTTIME;
|
|
#endif
|
|
case TARGET_RLIMIT_SIGPENDING:
|
|
return RLIMIT_SIGPENDING;
|
|
case TARGET_RLIMIT_STACK:
|
|
return RLIMIT_STACK;
|
|
default:
|
|
return code;
|
|
}
|
|
}
|
|
|
|
static inline abi_long copy_from_user_timeval(struct timeval *tv,
|
|
abi_ulong target_tv_addr)
|
|
{
|
|
struct target_timeval *target_tv;
|
|
|
|
if (!lock_user_struct(VERIFY_READ, target_tv, target_tv_addr, 1)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
__get_user(tv->tv_sec, &target_tv->tv_sec);
|
|
__get_user(tv->tv_usec, &target_tv->tv_usec);
|
|
|
|
unlock_user_struct(target_tv, target_tv_addr, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long copy_to_user_timeval(abi_ulong target_tv_addr,
|
|
const struct timeval *tv)
|
|
{
|
|
struct target_timeval *target_tv;
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, target_tv, target_tv_addr, 0)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
__put_user(tv->tv_sec, &target_tv->tv_sec);
|
|
__put_user(tv->tv_usec, &target_tv->tv_usec);
|
|
|
|
unlock_user_struct(target_tv, target_tv_addr, 1);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#if defined(TARGET_NR_clock_adjtime64) && defined(CONFIG_CLOCK_ADJTIME)
|
|
static inline abi_long copy_from_user_timeval64(struct timeval *tv,
|
|
abi_ulong target_tv_addr)
|
|
{
|
|
struct target__kernel_sock_timeval *target_tv;
|
|
|
|
if (!lock_user_struct(VERIFY_READ, target_tv, target_tv_addr, 1)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
__get_user(tv->tv_sec, &target_tv->tv_sec);
|
|
__get_user(tv->tv_usec, &target_tv->tv_usec);
|
|
|
|
unlock_user_struct(target_tv, target_tv_addr, 0);
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static inline abi_long copy_to_user_timeval64(abi_ulong target_tv_addr,
|
|
const struct timeval *tv)
|
|
{
|
|
struct target__kernel_sock_timeval *target_tv;
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, target_tv, target_tv_addr, 0)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
__put_user(tv->tv_sec, &target_tv->tv_sec);
|
|
__put_user(tv->tv_usec, &target_tv->tv_usec);
|
|
|
|
unlock_user_struct(target_tv, target_tv_addr, 1);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#if defined(TARGET_NR_futex) || \
|
|
defined(TARGET_NR_rt_sigtimedwait) || \
|
|
defined(TARGET_NR_pselect6) || defined(TARGET_NR_pselect6) || \
|
|
defined(TARGET_NR_nanosleep) || defined(TARGET_NR_clock_settime) || \
|
|
defined(TARGET_NR_utimensat) || defined(TARGET_NR_mq_timedsend) || \
|
|
defined(TARGET_NR_mq_timedreceive) || defined(TARGET_NR_ipc) || \
|
|
defined(TARGET_NR_semop) || defined(TARGET_NR_semtimedop) || \
|
|
defined(TARGET_NR_timer_settime) || \
|
|
(defined(TARGET_NR_timerfd_settime) && defined(CONFIG_TIMERFD))
|
|
static inline abi_long target_to_host_timespec(struct timespec *host_ts,
|
|
abi_ulong target_addr)
|
|
{
|
|
struct target_timespec *target_ts;
|
|
|
|
if (!lock_user_struct(VERIFY_READ, target_ts, target_addr, 1)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
__get_user(host_ts->tv_sec, &target_ts->tv_sec);
|
|
__get_user(host_ts->tv_nsec, &target_ts->tv_nsec);
|
|
unlock_user_struct(target_ts, target_addr, 0);
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_clock_settime64) || defined(TARGET_NR_futex_time64) || \
|
|
defined(TARGET_NR_timer_settime64) || \
|
|
defined(TARGET_NR_mq_timedsend_time64) || \
|
|
defined(TARGET_NR_mq_timedreceive_time64) || \
|
|
(defined(TARGET_NR_timerfd_settime64) && defined(CONFIG_TIMERFD)) || \
|
|
defined(TARGET_NR_clock_nanosleep_time64) || \
|
|
defined(TARGET_NR_rt_sigtimedwait_time64) || \
|
|
defined(TARGET_NR_utimensat) || \
|
|
defined(TARGET_NR_utimensat_time64) || \
|
|
defined(TARGET_NR_semtimedop_time64) || \
|
|
defined(TARGET_NR_pselect6_time64) || defined(TARGET_NR_ppoll_time64)
|
|
static inline abi_long target_to_host_timespec64(struct timespec *host_ts,
|
|
abi_ulong target_addr)
|
|
{
|
|
struct target__kernel_timespec *target_ts;
|
|
|
|
if (!lock_user_struct(VERIFY_READ, target_ts, target_addr, 1)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
__get_user(host_ts->tv_sec, &target_ts->tv_sec);
|
|
__get_user(host_ts->tv_nsec, &target_ts->tv_nsec);
|
|
/* in 32bit mode, this drops the padding */
|
|
host_ts->tv_nsec = (long)(abi_long)host_ts->tv_nsec;
|
|
unlock_user_struct(target_ts, target_addr, 0);
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static inline abi_long host_to_target_timespec(abi_ulong target_addr,
|
|
struct timespec *host_ts)
|
|
{
|
|
struct target_timespec *target_ts;
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, target_ts, target_addr, 0)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
__put_user(host_ts->tv_sec, &target_ts->tv_sec);
|
|
__put_user(host_ts->tv_nsec, &target_ts->tv_nsec);
|
|
unlock_user_struct(target_ts, target_addr, 1);
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long host_to_target_timespec64(abi_ulong target_addr,
|
|
struct timespec *host_ts)
|
|
{
|
|
struct target__kernel_timespec *target_ts;
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, target_ts, target_addr, 0)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
__put_user(host_ts->tv_sec, &target_ts->tv_sec);
|
|
__put_user(host_ts->tv_nsec, &target_ts->tv_nsec);
|
|
unlock_user_struct(target_ts, target_addr, 1);
|
|
return 0;
|
|
}
|
|
|
|
#if defined(TARGET_NR_gettimeofday)
|
|
static inline abi_long copy_to_user_timezone(abi_ulong target_tz_addr,
|
|
struct timezone *tz)
|
|
{
|
|
struct target_timezone *target_tz;
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, target_tz, target_tz_addr, 1)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
__put_user(tz->tz_minuteswest, &target_tz->tz_minuteswest);
|
|
__put_user(tz->tz_dsttime, &target_tz->tz_dsttime);
|
|
|
|
unlock_user_struct(target_tz, target_tz_addr, 1);
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_settimeofday)
|
|
static inline abi_long copy_from_user_timezone(struct timezone *tz,
|
|
abi_ulong target_tz_addr)
|
|
{
|
|
struct target_timezone *target_tz;
|
|
|
|
if (!lock_user_struct(VERIFY_READ, target_tz, target_tz_addr, 1)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
__get_user(tz->tz_minuteswest, &target_tz->tz_minuteswest);
|
|
__get_user(tz->tz_dsttime, &target_tz->tz_dsttime);
|
|
|
|
unlock_user_struct(target_tz, target_tz_addr, 0);
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
|
|
#include <mqueue.h>
|
|
|
|
static inline abi_long copy_from_user_mq_attr(struct mq_attr *attr,
|
|
abi_ulong target_mq_attr_addr)
|
|
{
|
|
struct target_mq_attr *target_mq_attr;
|
|
|
|
if (!lock_user_struct(VERIFY_READ, target_mq_attr,
|
|
target_mq_attr_addr, 1))
|
|
return -TARGET_EFAULT;
|
|
|
|
__get_user(attr->mq_flags, &target_mq_attr->mq_flags);
|
|
__get_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg);
|
|
__get_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize);
|
|
__get_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs);
|
|
|
|
unlock_user_struct(target_mq_attr, target_mq_attr_addr, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long copy_to_user_mq_attr(abi_ulong target_mq_attr_addr,
|
|
const struct mq_attr *attr)
|
|
{
|
|
struct target_mq_attr *target_mq_attr;
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, target_mq_attr,
|
|
target_mq_attr_addr, 0))
|
|
return -TARGET_EFAULT;
|
|
|
|
__put_user(attr->mq_flags, &target_mq_attr->mq_flags);
|
|
__put_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg);
|
|
__put_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize);
|
|
__put_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs);
|
|
|
|
unlock_user_struct(target_mq_attr, target_mq_attr_addr, 1);
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_select) || defined(TARGET_NR__newselect)
|
|
/* do_select() must return target values and target errnos. */
|
|
static abi_long do_select(int n,
|
|
abi_ulong rfd_addr, abi_ulong wfd_addr,
|
|
abi_ulong efd_addr, abi_ulong target_tv_addr)
|
|
{
|
|
fd_set rfds, wfds, efds;
|
|
fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
|
|
struct timeval tv;
|
|
struct timespec ts, *ts_ptr;
|
|
abi_long ret;
|
|
|
|
ret = copy_from_user_fdset_ptr(&rfds, &rfds_ptr, rfd_addr, n);
|
|
if (ret) {
|
|
return ret;
|
|
}
|
|
ret = copy_from_user_fdset_ptr(&wfds, &wfds_ptr, wfd_addr, n);
|
|
if (ret) {
|
|
return ret;
|
|
}
|
|
ret = copy_from_user_fdset_ptr(&efds, &efds_ptr, efd_addr, n);
|
|
if (ret) {
|
|
return ret;
|
|
}
|
|
|
|
if (target_tv_addr) {
|
|
if (copy_from_user_timeval(&tv, target_tv_addr))
|
|
return -TARGET_EFAULT;
|
|
ts.tv_sec = tv.tv_sec;
|
|
ts.tv_nsec = tv.tv_usec * 1000;
|
|
ts_ptr = &ts;
|
|
} else {
|
|
ts_ptr = NULL;
|
|
}
|
|
|
|
ret = get_errno(safe_pselect6(n, rfds_ptr, wfds_ptr, efds_ptr,
|
|
ts_ptr, NULL));
|
|
|
|
if (!is_error(ret)) {
|
|
if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n))
|
|
return -TARGET_EFAULT;
|
|
if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n))
|
|
return -TARGET_EFAULT;
|
|
if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n))
|
|
return -TARGET_EFAULT;
|
|
|
|
if (target_tv_addr) {
|
|
tv.tv_sec = ts.tv_sec;
|
|
tv.tv_usec = ts.tv_nsec / 1000;
|
|
if (copy_to_user_timeval(target_tv_addr, &tv)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
#if defined(TARGET_WANT_OLD_SYS_SELECT)
|
|
static abi_long do_old_select(abi_ulong arg1)
|
|
{
|
|
struct target_sel_arg_struct *sel;
|
|
abi_ulong inp, outp, exp, tvp;
|
|
long nsel;
|
|
|
|
if (!lock_user_struct(VERIFY_READ, sel, arg1, 1)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
nsel = tswapal(sel->n);
|
|
inp = tswapal(sel->inp);
|
|
outp = tswapal(sel->outp);
|
|
exp = tswapal(sel->exp);
|
|
tvp = tswapal(sel->tvp);
|
|
|
|
unlock_user_struct(sel, arg1, 0);
|
|
|
|
return do_select(nsel, inp, outp, exp, tvp);
|
|
}
|
|
#endif
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_pselect6) || defined(TARGET_NR_pselect6_time64)
|
|
static abi_long do_pselect6(abi_long arg1, abi_long arg2, abi_long arg3,
|
|
abi_long arg4, abi_long arg5, abi_long arg6,
|
|
bool time64)
|
|
{
|
|
abi_long rfd_addr, wfd_addr, efd_addr, n, ts_addr;
|
|
fd_set rfds, wfds, efds;
|
|
fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
|
|
struct timespec ts, *ts_ptr;
|
|
abi_long ret;
|
|
|
|
/*
|
|
* The 6th arg is actually two args smashed together,
|
|
* so we cannot use the C library.
|
|
*/
|
|
struct {
|
|
sigset_t *set;
|
|
size_t size;
|
|
} sig, *sig_ptr;
|
|
|
|
abi_ulong arg_sigset, arg_sigsize, *arg7;
|
|
|
|
n = arg1;
|
|
rfd_addr = arg2;
|
|
wfd_addr = arg3;
|
|
efd_addr = arg4;
|
|
ts_addr = arg5;
|
|
|
|
ret = copy_from_user_fdset_ptr(&rfds, &rfds_ptr, rfd_addr, n);
|
|
if (ret) {
|
|
return ret;
|
|
}
|
|
ret = copy_from_user_fdset_ptr(&wfds, &wfds_ptr, wfd_addr, n);
|
|
if (ret) {
|
|
return ret;
|
|
}
|
|
ret = copy_from_user_fdset_ptr(&efds, &efds_ptr, efd_addr, n);
|
|
if (ret) {
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* This takes a timespec, and not a timeval, so we cannot
|
|
* use the do_select() helper ...
|
|
*/
|
|
if (ts_addr) {
|
|
if (time64) {
|
|
if (target_to_host_timespec64(&ts, ts_addr)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
} else {
|
|
if (target_to_host_timespec(&ts, ts_addr)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
ts_ptr = &ts;
|
|
} else {
|
|
ts_ptr = NULL;
|
|
}
|
|
|
|
/* Extract the two packed args for the sigset */
|
|
sig_ptr = NULL;
|
|
if (arg6) {
|
|
arg7 = lock_user(VERIFY_READ, arg6, sizeof(*arg7) * 2, 1);
|
|
if (!arg7) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
arg_sigset = tswapal(arg7[0]);
|
|
arg_sigsize = tswapal(arg7[1]);
|
|
unlock_user(arg7, arg6, 0);
|
|
|
|
if (arg_sigset) {
|
|
ret = process_sigsuspend_mask(&sig.set, arg_sigset, arg_sigsize);
|
|
if (ret != 0) {
|
|
return ret;
|
|
}
|
|
sig_ptr = &sig;
|
|
sig.size = SIGSET_T_SIZE;
|
|
}
|
|
}
|
|
|
|
ret = get_errno(safe_pselect6(n, rfds_ptr, wfds_ptr, efds_ptr,
|
|
ts_ptr, sig_ptr));
|
|
|
|
if (sig_ptr) {
|
|
finish_sigsuspend_mask(ret);
|
|
}
|
|
|
|
if (!is_error(ret)) {
|
|
if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
if (time64) {
|
|
if (ts_addr && host_to_target_timespec64(ts_addr, &ts)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
} else {
|
|
if (ts_addr && host_to_target_timespec(ts_addr, &ts)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_poll) || defined(TARGET_NR_ppoll) || \
|
|
defined(TARGET_NR_ppoll_time64)
|
|
static abi_long do_ppoll(abi_long arg1, abi_long arg2, abi_long arg3,
|
|
abi_long arg4, abi_long arg5, bool ppoll, bool time64)
|
|
{
|
|
struct target_pollfd *target_pfd;
|
|
unsigned int nfds = arg2;
|
|
struct pollfd *pfd;
|
|
unsigned int i;
|
|
abi_long ret;
|
|
|
|
pfd = NULL;
|
|
target_pfd = NULL;
|
|
if (nfds) {
|
|
if (nfds > (INT_MAX / sizeof(struct target_pollfd))) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
target_pfd = lock_user(VERIFY_WRITE, arg1,
|
|
sizeof(struct target_pollfd) * nfds, 1);
|
|
if (!target_pfd) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
pfd = alloca(sizeof(struct pollfd) * nfds);
|
|
for (i = 0; i < nfds; i++) {
|
|
pfd[i].fd = tswap32(target_pfd[i].fd);
|
|
pfd[i].events = tswap16(target_pfd[i].events);
|
|
}
|
|
}
|
|
if (ppoll) {
|
|
struct timespec _timeout_ts, *timeout_ts = &_timeout_ts;
|
|
sigset_t *set = NULL;
|
|
|
|
if (arg3) {
|
|
if (time64) {
|
|
if (target_to_host_timespec64(timeout_ts, arg3)) {
|
|
unlock_user(target_pfd, arg1, 0);
|
|
return -TARGET_EFAULT;
|
|
}
|
|
} else {
|
|
if (target_to_host_timespec(timeout_ts, arg3)) {
|
|
unlock_user(target_pfd, arg1, 0);
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
} else {
|
|
timeout_ts = NULL;
|
|
}
|
|
|
|
if (arg4) {
|
|
ret = process_sigsuspend_mask(&set, arg4, arg5);
|
|
if (ret != 0) {
|
|
unlock_user(target_pfd, arg1, 0);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
ret = get_errno(safe_ppoll(pfd, nfds, timeout_ts,
|
|
set, SIGSET_T_SIZE));
|
|
|
|
if (set) {
|
|
finish_sigsuspend_mask(ret);
|
|
}
|
|
if (!is_error(ret) && arg3) {
|
|
if (time64) {
|
|
if (host_to_target_timespec64(arg3, timeout_ts)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
} else {
|
|
if (host_to_target_timespec(arg3, timeout_ts)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
struct timespec ts, *pts;
|
|
|
|
if (arg3 >= 0) {
|
|
/* Convert ms to secs, ns */
|
|
ts.tv_sec = arg3 / 1000;
|
|
ts.tv_nsec = (arg3 % 1000) * 1000000LL;
|
|
pts = &ts;
|
|
} else {
|
|
/* -ve poll() timeout means "infinite" */
|
|
pts = NULL;
|
|
}
|
|
ret = get_errno(safe_ppoll(pfd, nfds, pts, NULL, 0));
|
|
}
|
|
|
|
if (!is_error(ret)) {
|
|
for (i = 0; i < nfds; i++) {
|
|
target_pfd[i].revents = tswap16(pfd[i].revents);
|
|
}
|
|
}
|
|
unlock_user(target_pfd, arg1, sizeof(struct target_pollfd) * nfds);
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
static abi_long do_pipe(CPUArchState *cpu_env, abi_ulong pipedes,
|
|
int flags, int is_pipe2)
|
|
{
|
|
int host_pipe[2];
|
|
abi_long ret;
|
|
ret = pipe2(host_pipe, flags);
|
|
|
|
if (is_error(ret))
|
|
return get_errno(ret);
|
|
|
|
/* Several targets have special calling conventions for the original
|
|
pipe syscall, but didn't replicate this into the pipe2 syscall. */
|
|
if (!is_pipe2) {
|
|
#if defined(TARGET_ALPHA)
|
|
cpu_env->ir[IR_A4] = host_pipe[1];
|
|
return host_pipe[0];
|
|
#elif defined(TARGET_MIPS)
|
|
cpu_env->active_tc.gpr[3] = host_pipe[1];
|
|
return host_pipe[0];
|
|
#elif defined(TARGET_SH4)
|
|
cpu_env->gregs[1] = host_pipe[1];
|
|
return host_pipe[0];
|
|
#elif defined(TARGET_SPARC)
|
|
cpu_env->regwptr[1] = host_pipe[1];
|
|
return host_pipe[0];
|
|
#endif
|
|
}
|
|
|
|
if (put_user_s32(host_pipe[0], pipedes)
|
|
|| put_user_s32(host_pipe[1], pipedes + sizeof(abi_int)))
|
|
return -TARGET_EFAULT;
|
|
return get_errno(ret);
|
|
}
|
|
|
|
static inline abi_long target_to_host_ip_mreq(struct ip_mreqn *mreqn,
|
|
abi_ulong target_addr,
|
|
socklen_t len)
|
|
{
|
|
struct target_ip_mreqn *target_smreqn;
|
|
|
|
target_smreqn = lock_user(VERIFY_READ, target_addr, len, 1);
|
|
if (!target_smreqn)
|
|
return -TARGET_EFAULT;
|
|
mreqn->imr_multiaddr.s_addr = target_smreqn->imr_multiaddr.s_addr;
|
|
mreqn->imr_address.s_addr = target_smreqn->imr_address.s_addr;
|
|
if (len == sizeof(struct target_ip_mreqn))
|
|
mreqn->imr_ifindex = tswapal(target_smreqn->imr_ifindex);
|
|
unlock_user(target_smreqn, target_addr, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long target_to_host_sockaddr(int fd, struct sockaddr *addr,
|
|
abi_ulong target_addr,
|
|
socklen_t len)
|
|
{
|
|
const socklen_t unix_maxlen = sizeof (struct sockaddr_un);
|
|
sa_family_t sa_family;
|
|
struct target_sockaddr *target_saddr;
|
|
|
|
if (fd_trans_target_to_host_addr(fd)) {
|
|
return fd_trans_target_to_host_addr(fd)(addr, target_addr, len);
|
|
}
|
|
|
|
target_saddr = lock_user(VERIFY_READ, target_addr, len, 1);
|
|
if (!target_saddr)
|
|
return -TARGET_EFAULT;
|
|
|
|
sa_family = tswap16(target_saddr->sa_family);
|
|
|
|
/* Oops. The caller might send a incomplete sun_path; sun_path
|
|
* must be terminated by \0 (see the manual page), but
|
|
* unfortunately it is quite common to specify sockaddr_un
|
|
* length as "strlen(x->sun_path)" while it should be
|
|
* "strlen(...) + 1". We'll fix that here if needed.
|
|
* Linux kernel has a similar feature.
|
|
*/
|
|
|
|
if (sa_family == AF_UNIX) {
|
|
if (len < unix_maxlen && len > 0) {
|
|
char *cp = (char*)target_saddr;
|
|
|
|
if ( cp[len-1] && !cp[len] )
|
|
len++;
|
|
}
|
|
if (len > unix_maxlen)
|
|
len = unix_maxlen;
|
|
}
|
|
|
|
memcpy(addr, target_saddr, len);
|
|
addr->sa_family = sa_family;
|
|
if (sa_family == AF_NETLINK) {
|
|
struct sockaddr_nl *nladdr;
|
|
|
|
nladdr = (struct sockaddr_nl *)addr;
|
|
nladdr->nl_pid = tswap32(nladdr->nl_pid);
|
|
nladdr->nl_groups = tswap32(nladdr->nl_groups);
|
|
} else if (sa_family == AF_PACKET) {
|
|
struct target_sockaddr_ll *lladdr;
|
|
|
|
lladdr = (struct target_sockaddr_ll *)addr;
|
|
lladdr->sll_ifindex = tswap32(lladdr->sll_ifindex);
|
|
lladdr->sll_hatype = tswap16(lladdr->sll_hatype);
|
|
}
|
|
unlock_user(target_saddr, target_addr, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long host_to_target_sockaddr(abi_ulong target_addr,
|
|
struct sockaddr *addr,
|
|
socklen_t len)
|
|
{
|
|
struct target_sockaddr *target_saddr;
|
|
|
|
if (len == 0) {
|
|
return 0;
|
|
}
|
|
assert(addr);
|
|
|
|
target_saddr = lock_user(VERIFY_WRITE, target_addr, len, 0);
|
|
if (!target_saddr)
|
|
return -TARGET_EFAULT;
|
|
memcpy(target_saddr, addr, len);
|
|
if (len >= offsetof(struct target_sockaddr, sa_family) +
|
|
sizeof(target_saddr->sa_family)) {
|
|
target_saddr->sa_family = tswap16(addr->sa_family);
|
|
}
|
|
if (addr->sa_family == AF_NETLINK &&
|
|
len >= sizeof(struct target_sockaddr_nl)) {
|
|
struct target_sockaddr_nl *target_nl =
|
|
(struct target_sockaddr_nl *)target_saddr;
|
|
target_nl->nl_pid = tswap32(target_nl->nl_pid);
|
|
target_nl->nl_groups = tswap32(target_nl->nl_groups);
|
|
} else if (addr->sa_family == AF_PACKET) {
|
|
struct sockaddr_ll *target_ll = (struct sockaddr_ll *)target_saddr;
|
|
target_ll->sll_ifindex = tswap32(target_ll->sll_ifindex);
|
|
target_ll->sll_hatype = tswap16(target_ll->sll_hatype);
|
|
} else if (addr->sa_family == AF_INET6 &&
|
|
len >= sizeof(struct target_sockaddr_in6)) {
|
|
struct target_sockaddr_in6 *target_in6 =
|
|
(struct target_sockaddr_in6 *)target_saddr;
|
|
target_in6->sin6_scope_id = tswap16(target_in6->sin6_scope_id);
|
|
}
|
|
unlock_user(target_saddr, target_addr, len);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long target_to_host_cmsg(struct msghdr *msgh,
|
|
struct target_msghdr *target_msgh)
|
|
{
|
|
struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
|
|
abi_long msg_controllen;
|
|
abi_ulong target_cmsg_addr;
|
|
struct target_cmsghdr *target_cmsg, *target_cmsg_start;
|
|
socklen_t space = 0;
|
|
|
|
msg_controllen = tswapal(target_msgh->msg_controllen);
|
|
if (msg_controllen < sizeof (struct target_cmsghdr))
|
|
goto the_end;
|
|
target_cmsg_addr = tswapal(target_msgh->msg_control);
|
|
target_cmsg = lock_user(VERIFY_READ, target_cmsg_addr, msg_controllen, 1);
|
|
target_cmsg_start = target_cmsg;
|
|
if (!target_cmsg)
|
|
return -TARGET_EFAULT;
|
|
|
|
while (cmsg && target_cmsg) {
|
|
void *data = CMSG_DATA(cmsg);
|
|
void *target_data = TARGET_CMSG_DATA(target_cmsg);
|
|
|
|
int len = tswapal(target_cmsg->cmsg_len)
|
|
- sizeof(struct target_cmsghdr);
|
|
|
|
space += CMSG_SPACE(len);
|
|
if (space > msgh->msg_controllen) {
|
|
space -= CMSG_SPACE(len);
|
|
/* This is a QEMU bug, since we allocated the payload
|
|
* area ourselves (unlike overflow in host-to-target
|
|
* conversion, which is just the guest giving us a buffer
|
|
* that's too small). It can't happen for the payload types
|
|
* we currently support; if it becomes an issue in future
|
|
* we would need to improve our allocation strategy to
|
|
* something more intelligent than "twice the size of the
|
|
* target buffer we're reading from".
|
|
*/
|
|
qemu_log_mask(LOG_UNIMP,
|
|
("Unsupported ancillary data %d/%d: "
|
|
"unhandled msg size\n"),
|
|
tswap32(target_cmsg->cmsg_level),
|
|
tswap32(target_cmsg->cmsg_type));
|
|
break;
|
|
}
|
|
|
|
if (tswap32(target_cmsg->cmsg_level) == TARGET_SOL_SOCKET) {
|
|
cmsg->cmsg_level = SOL_SOCKET;
|
|
} else {
|
|
cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
|
|
}
|
|
cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
|
|
cmsg->cmsg_len = CMSG_LEN(len);
|
|
|
|
if (cmsg->cmsg_level == SOL_SOCKET && cmsg->cmsg_type == SCM_RIGHTS) {
|
|
int *fd = (int *)data;
|
|
int *target_fd = (int *)target_data;
|
|
int i, numfds = len / sizeof(int);
|
|
|
|
for (i = 0; i < numfds; i++) {
|
|
__get_user(fd[i], target_fd + i);
|
|
}
|
|
} else if (cmsg->cmsg_level == SOL_SOCKET
|
|
&& cmsg->cmsg_type == SCM_CREDENTIALS) {
|
|
struct ucred *cred = (struct ucred *)data;
|
|
struct target_ucred *target_cred =
|
|
(struct target_ucred *)target_data;
|
|
|
|
__get_user(cred->pid, &target_cred->pid);
|
|
__get_user(cred->uid, &target_cred->uid);
|
|
__get_user(cred->gid, &target_cred->gid);
|
|
} else {
|
|
qemu_log_mask(LOG_UNIMP, "Unsupported ancillary data: %d/%d\n",
|
|
cmsg->cmsg_level, cmsg->cmsg_type);
|
|
memcpy(data, target_data, len);
|
|
}
|
|
|
|
cmsg = CMSG_NXTHDR(msgh, cmsg);
|
|
target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg,
|
|
target_cmsg_start);
|
|
}
|
|
unlock_user(target_cmsg, target_cmsg_addr, 0);
|
|
the_end:
|
|
msgh->msg_controllen = space;
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long host_to_target_cmsg(struct target_msghdr *target_msgh,
|
|
struct msghdr *msgh)
|
|
{
|
|
struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
|
|
abi_long msg_controllen;
|
|
abi_ulong target_cmsg_addr;
|
|
struct target_cmsghdr *target_cmsg, *target_cmsg_start;
|
|
socklen_t space = 0;
|
|
|
|
msg_controllen = tswapal(target_msgh->msg_controllen);
|
|
if (msg_controllen < sizeof (struct target_cmsghdr))
|
|
goto the_end;
|
|
target_cmsg_addr = tswapal(target_msgh->msg_control);
|
|
target_cmsg = lock_user(VERIFY_WRITE, target_cmsg_addr, msg_controllen, 0);
|
|
target_cmsg_start = target_cmsg;
|
|
if (!target_cmsg)
|
|
return -TARGET_EFAULT;
|
|
|
|
while (cmsg && target_cmsg) {
|
|
void *data = CMSG_DATA(cmsg);
|
|
void *target_data = TARGET_CMSG_DATA(target_cmsg);
|
|
|
|
int len = cmsg->cmsg_len - sizeof(struct cmsghdr);
|
|
int tgt_len, tgt_space;
|
|
|
|
/* We never copy a half-header but may copy half-data;
|
|
* this is Linux's behaviour in put_cmsg(). Note that
|
|
* truncation here is a guest problem (which we report
|
|
* to the guest via the CTRUNC bit), unlike truncation
|
|
* in target_to_host_cmsg, which is a QEMU bug.
|
|
*/
|
|
if (msg_controllen < sizeof(struct target_cmsghdr)) {
|
|
target_msgh->msg_flags |= tswap32(MSG_CTRUNC);
|
|
break;
|
|
}
|
|
|
|
if (cmsg->cmsg_level == SOL_SOCKET) {
|
|
target_cmsg->cmsg_level = tswap32(TARGET_SOL_SOCKET);
|
|
} else {
|
|
target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
|
|
}
|
|
target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
|
|
|
|
/* Payload types which need a different size of payload on
|
|
* the target must adjust tgt_len here.
|
|
*/
|
|
tgt_len = len;
|
|
switch (cmsg->cmsg_level) {
|
|
case SOL_SOCKET:
|
|
switch (cmsg->cmsg_type) {
|
|
case SO_TIMESTAMP:
|
|
tgt_len = sizeof(struct target_timeval);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (msg_controllen < TARGET_CMSG_LEN(tgt_len)) {
|
|
target_msgh->msg_flags |= tswap32(MSG_CTRUNC);
|
|
tgt_len = msg_controllen - sizeof(struct target_cmsghdr);
|
|
}
|
|
|
|
/* We must now copy-and-convert len bytes of payload
|
|
* into tgt_len bytes of destination space. Bear in mind
|
|
* that in both source and destination we may be dealing
|
|
* with a truncated value!
|
|
*/
|
|
switch (cmsg->cmsg_level) {
|
|
case SOL_SOCKET:
|
|
switch (cmsg->cmsg_type) {
|
|
case SCM_RIGHTS:
|
|
{
|
|
int *fd = (int *)data;
|
|
int *target_fd = (int *)target_data;
|
|
int i, numfds = tgt_len / sizeof(int);
|
|
|
|
for (i = 0; i < numfds; i++) {
|
|
__put_user(fd[i], target_fd + i);
|
|
}
|
|
break;
|
|
}
|
|
case SO_TIMESTAMP:
|
|
{
|
|
struct timeval *tv = (struct timeval *)data;
|
|
struct target_timeval *target_tv =
|
|
(struct target_timeval *)target_data;
|
|
|
|
if (len != sizeof(struct timeval) ||
|
|
tgt_len != sizeof(struct target_timeval)) {
|
|
goto unimplemented;
|
|
}
|
|
|
|
/* copy struct timeval to target */
|
|
__put_user(tv->tv_sec, &target_tv->tv_sec);
|
|
__put_user(tv->tv_usec, &target_tv->tv_usec);
|
|
break;
|
|
}
|
|
case SCM_CREDENTIALS:
|
|
{
|
|
struct ucred *cred = (struct ucred *)data;
|
|
struct target_ucred *target_cred =
|
|
(struct target_ucred *)target_data;
|
|
|
|
__put_user(cred->pid, &target_cred->pid);
|
|
__put_user(cred->uid, &target_cred->uid);
|
|
__put_user(cred->gid, &target_cred->gid);
|
|
break;
|
|
}
|
|
default:
|
|
goto unimplemented;
|
|
}
|
|
break;
|
|
|
|
case SOL_IP:
|
|
switch (cmsg->cmsg_type) {
|
|
case IP_TTL:
|
|
{
|
|
uint32_t *v = (uint32_t *)data;
|
|
uint32_t *t_int = (uint32_t *)target_data;
|
|
|
|
if (len != sizeof(uint32_t) ||
|
|
tgt_len != sizeof(uint32_t)) {
|
|
goto unimplemented;
|
|
}
|
|
__put_user(*v, t_int);
|
|
break;
|
|
}
|
|
case IP_RECVERR:
|
|
{
|
|
struct errhdr_t {
|
|
struct sock_extended_err ee;
|
|
struct sockaddr_in offender;
|
|
};
|
|
struct errhdr_t *errh = (struct errhdr_t *)data;
|
|
struct errhdr_t *target_errh =
|
|
(struct errhdr_t *)target_data;
|
|
|
|
if (len != sizeof(struct errhdr_t) ||
|
|
tgt_len != sizeof(struct errhdr_t)) {
|
|
goto unimplemented;
|
|
}
|
|
__put_user(errh->ee.ee_errno, &target_errh->ee.ee_errno);
|
|
__put_user(errh->ee.ee_origin, &target_errh->ee.ee_origin);
|
|
__put_user(errh->ee.ee_type, &target_errh->ee.ee_type);
|
|
__put_user(errh->ee.ee_code, &target_errh->ee.ee_code);
|
|
__put_user(errh->ee.ee_pad, &target_errh->ee.ee_pad);
|
|
__put_user(errh->ee.ee_info, &target_errh->ee.ee_info);
|
|
__put_user(errh->ee.ee_data, &target_errh->ee.ee_data);
|
|
host_to_target_sockaddr((unsigned long) &target_errh->offender,
|
|
(void *) &errh->offender, sizeof(errh->offender));
|
|
break;
|
|
}
|
|
default:
|
|
goto unimplemented;
|
|
}
|
|
break;
|
|
|
|
case SOL_IPV6:
|
|
switch (cmsg->cmsg_type) {
|
|
case IPV6_HOPLIMIT:
|
|
{
|
|
uint32_t *v = (uint32_t *)data;
|
|
uint32_t *t_int = (uint32_t *)target_data;
|
|
|
|
if (len != sizeof(uint32_t) ||
|
|
tgt_len != sizeof(uint32_t)) {
|
|
goto unimplemented;
|
|
}
|
|
__put_user(*v, t_int);
|
|
break;
|
|
}
|
|
case IPV6_RECVERR:
|
|
{
|
|
struct errhdr6_t {
|
|
struct sock_extended_err ee;
|
|
struct sockaddr_in6 offender;
|
|
};
|
|
struct errhdr6_t *errh = (struct errhdr6_t *)data;
|
|
struct errhdr6_t *target_errh =
|
|
(struct errhdr6_t *)target_data;
|
|
|
|
if (len != sizeof(struct errhdr6_t) ||
|
|
tgt_len != sizeof(struct errhdr6_t)) {
|
|
goto unimplemented;
|
|
}
|
|
__put_user(errh->ee.ee_errno, &target_errh->ee.ee_errno);
|
|
__put_user(errh->ee.ee_origin, &target_errh->ee.ee_origin);
|
|
__put_user(errh->ee.ee_type, &target_errh->ee.ee_type);
|
|
__put_user(errh->ee.ee_code, &target_errh->ee.ee_code);
|
|
__put_user(errh->ee.ee_pad, &target_errh->ee.ee_pad);
|
|
__put_user(errh->ee.ee_info, &target_errh->ee.ee_info);
|
|
__put_user(errh->ee.ee_data, &target_errh->ee.ee_data);
|
|
host_to_target_sockaddr((unsigned long) &target_errh->offender,
|
|
(void *) &errh->offender, sizeof(errh->offender));
|
|
break;
|
|
}
|
|
default:
|
|
goto unimplemented;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
unimplemented:
|
|
qemu_log_mask(LOG_UNIMP, "Unsupported ancillary data: %d/%d\n",
|
|
cmsg->cmsg_level, cmsg->cmsg_type);
|
|
memcpy(target_data, data, MIN(len, tgt_len));
|
|
if (tgt_len > len) {
|
|
memset(target_data + len, 0, tgt_len - len);
|
|
}
|
|
}
|
|
|
|
target_cmsg->cmsg_len = tswapal(TARGET_CMSG_LEN(tgt_len));
|
|
tgt_space = TARGET_CMSG_SPACE(tgt_len);
|
|
if (msg_controllen < tgt_space) {
|
|
tgt_space = msg_controllen;
|
|
}
|
|
msg_controllen -= tgt_space;
|
|
space += tgt_space;
|
|
cmsg = CMSG_NXTHDR(msgh, cmsg);
|
|
target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg,
|
|
target_cmsg_start);
|
|
}
|
|
unlock_user(target_cmsg, target_cmsg_addr, space);
|
|
the_end:
|
|
target_msgh->msg_controllen = tswapal(space);
|
|
return 0;
|
|
}
|
|
|
|
/* do_setsockopt() Must return target values and target errnos. */
|
|
static abi_long do_setsockopt(int sockfd, int level, int optname,
|
|
abi_ulong optval_addr, socklen_t optlen)
|
|
{
|
|
abi_long ret;
|
|
int val;
|
|
struct ip_mreqn *ip_mreq;
|
|
struct ip_mreq_source *ip_mreq_source;
|
|
|
|
switch(level) {
|
|
case SOL_TCP:
|
|
case SOL_UDP:
|
|
/* TCP and UDP options all take an 'int' value. */
|
|
if (optlen < sizeof(uint32_t))
|
|
return -TARGET_EINVAL;
|
|
|
|
if (get_user_u32(val, optval_addr))
|
|
return -TARGET_EFAULT;
|
|
ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
|
|
break;
|
|
case SOL_IP:
|
|
switch(optname) {
|
|
case IP_TOS:
|
|
case IP_TTL:
|
|
case IP_HDRINCL:
|
|
case IP_ROUTER_ALERT:
|
|
case IP_RECVOPTS:
|
|
case IP_RETOPTS:
|
|
case IP_PKTINFO:
|
|
case IP_MTU_DISCOVER:
|
|
case IP_RECVERR:
|
|
case IP_RECVTTL:
|
|
case IP_RECVTOS:
|
|
#ifdef IP_FREEBIND
|
|
case IP_FREEBIND:
|
|
#endif
|
|
case IP_MULTICAST_TTL:
|
|
case IP_MULTICAST_LOOP:
|
|
val = 0;
|
|
if (optlen >= sizeof(uint32_t)) {
|
|
if (get_user_u32(val, optval_addr))
|
|
return -TARGET_EFAULT;
|
|
} else if (optlen >= 1) {
|
|
if (get_user_u8(val, optval_addr))
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
|
|
break;
|
|
case IP_ADD_MEMBERSHIP:
|
|
case IP_DROP_MEMBERSHIP:
|
|
if (optlen < sizeof (struct target_ip_mreq) ||
|
|
optlen > sizeof (struct target_ip_mreqn))
|
|
return -TARGET_EINVAL;
|
|
|
|
ip_mreq = (struct ip_mreqn *) alloca(optlen);
|
|
target_to_host_ip_mreq(ip_mreq, optval_addr, optlen);
|
|
ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq, optlen));
|
|
break;
|
|
|
|
case IP_BLOCK_SOURCE:
|
|
case IP_UNBLOCK_SOURCE:
|
|
case IP_ADD_SOURCE_MEMBERSHIP:
|
|
case IP_DROP_SOURCE_MEMBERSHIP:
|
|
if (optlen != sizeof (struct target_ip_mreq_source))
|
|
return -TARGET_EINVAL;
|
|
|
|
ip_mreq_source = lock_user(VERIFY_READ, optval_addr, optlen, 1);
|
|
if (!ip_mreq_source) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq_source, optlen));
|
|
unlock_user (ip_mreq_source, optval_addr, 0);
|
|
break;
|
|
|
|
default:
|
|
goto unimplemented;
|
|
}
|
|
break;
|
|
case SOL_IPV6:
|
|
switch (optname) {
|
|
case IPV6_MTU_DISCOVER:
|
|
case IPV6_MTU:
|
|
case IPV6_V6ONLY:
|
|
case IPV6_RECVPKTINFO:
|
|
case IPV6_UNICAST_HOPS:
|
|
case IPV6_MULTICAST_HOPS:
|
|
case IPV6_MULTICAST_LOOP:
|
|
case IPV6_RECVERR:
|
|
case IPV6_RECVHOPLIMIT:
|
|
case IPV6_2292HOPLIMIT:
|
|
case IPV6_CHECKSUM:
|
|
case IPV6_ADDRFORM:
|
|
case IPV6_2292PKTINFO:
|
|
case IPV6_RECVTCLASS:
|
|
case IPV6_RECVRTHDR:
|
|
case IPV6_2292RTHDR:
|
|
case IPV6_RECVHOPOPTS:
|
|
case IPV6_2292HOPOPTS:
|
|
case IPV6_RECVDSTOPTS:
|
|
case IPV6_2292DSTOPTS:
|
|
case IPV6_TCLASS:
|
|
case IPV6_ADDR_PREFERENCES:
|
|
#ifdef IPV6_RECVPATHMTU
|
|
case IPV6_RECVPATHMTU:
|
|
#endif
|
|
#ifdef IPV6_TRANSPARENT
|
|
case IPV6_TRANSPARENT:
|
|
#endif
|
|
#ifdef IPV6_FREEBIND
|
|
case IPV6_FREEBIND:
|
|
#endif
|
|
#ifdef IPV6_RECVORIGDSTADDR
|
|
case IPV6_RECVORIGDSTADDR:
|
|
#endif
|
|
val = 0;
|
|
if (optlen < sizeof(uint32_t)) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
if (get_user_u32(val, optval_addr)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = get_errno(setsockopt(sockfd, level, optname,
|
|
&val, sizeof(val)));
|
|
break;
|
|
case IPV6_PKTINFO:
|
|
{
|
|
struct in6_pktinfo pki;
|
|
|
|
if (optlen < sizeof(pki)) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
if (copy_from_user(&pki, optval_addr, sizeof(pki))) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
pki.ipi6_ifindex = tswap32(pki.ipi6_ifindex);
|
|
|
|
ret = get_errno(setsockopt(sockfd, level, optname,
|
|
&pki, sizeof(pki)));
|
|
break;
|
|
}
|
|
case IPV6_ADD_MEMBERSHIP:
|
|
case IPV6_DROP_MEMBERSHIP:
|
|
{
|
|
struct ipv6_mreq ipv6mreq;
|
|
|
|
if (optlen < sizeof(ipv6mreq)) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
if (copy_from_user(&ipv6mreq, optval_addr, sizeof(ipv6mreq))) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
ipv6mreq.ipv6mr_interface = tswap32(ipv6mreq.ipv6mr_interface);
|
|
|
|
ret = get_errno(setsockopt(sockfd, level, optname,
|
|
&ipv6mreq, sizeof(ipv6mreq)));
|
|
break;
|
|
}
|
|
default:
|
|
goto unimplemented;
|
|
}
|
|
break;
|
|
case SOL_ICMPV6:
|
|
switch (optname) {
|
|
case ICMPV6_FILTER:
|
|
{
|
|
struct icmp6_filter icmp6f;
|
|
|
|
if (optlen > sizeof(icmp6f)) {
|
|
optlen = sizeof(icmp6f);
|
|
}
|
|
|
|
if (copy_from_user(&icmp6f, optval_addr, optlen)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
for (val = 0; val < 8; val++) {
|
|
icmp6f.data[val] = tswap32(icmp6f.data[val]);
|
|
}
|
|
|
|
ret = get_errno(setsockopt(sockfd, level, optname,
|
|
&icmp6f, optlen));
|
|
break;
|
|
}
|
|
default:
|
|
goto unimplemented;
|
|
}
|
|
break;
|
|
case SOL_RAW:
|
|
switch (optname) {
|
|
case ICMP_FILTER:
|
|
case IPV6_CHECKSUM:
|
|
/* those take an u32 value */
|
|
if (optlen < sizeof(uint32_t)) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
if (get_user_u32(val, optval_addr)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = get_errno(setsockopt(sockfd, level, optname,
|
|
&val, sizeof(val)));
|
|
break;
|
|
|
|
default:
|
|
goto unimplemented;
|
|
}
|
|
break;
|
|
#if defined(SOL_ALG) && defined(ALG_SET_KEY) && defined(ALG_SET_AEAD_AUTHSIZE)
|
|
case SOL_ALG:
|
|
switch (optname) {
|
|
case ALG_SET_KEY:
|
|
{
|
|
char *alg_key = g_malloc(optlen);
|
|
|
|
if (!alg_key) {
|
|
return -TARGET_ENOMEM;
|
|
}
|
|
if (copy_from_user(alg_key, optval_addr, optlen)) {
|
|
g_free(alg_key);
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = get_errno(setsockopt(sockfd, level, optname,
|
|
alg_key, optlen));
|
|
g_free(alg_key);
|
|
break;
|
|
}
|
|
case ALG_SET_AEAD_AUTHSIZE:
|
|
{
|
|
ret = get_errno(setsockopt(sockfd, level, optname,
|
|
NULL, optlen));
|
|
break;
|
|
}
|
|
default:
|
|
goto unimplemented;
|
|
}
|
|
break;
|
|
#endif
|
|
case TARGET_SOL_SOCKET:
|
|
switch (optname) {
|
|
case TARGET_SO_RCVTIMEO:
|
|
{
|
|
struct timeval tv;
|
|
|
|
optname = SO_RCVTIMEO;
|
|
|
|
set_timeout:
|
|
if (optlen != sizeof(struct target_timeval)) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
if (copy_from_user_timeval(&tv, optval_addr)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname,
|
|
&tv, sizeof(tv)));
|
|
return ret;
|
|
}
|
|
case TARGET_SO_SNDTIMEO:
|
|
optname = SO_SNDTIMEO;
|
|
goto set_timeout;
|
|
case TARGET_SO_ATTACH_FILTER:
|
|
{
|
|
struct target_sock_fprog *tfprog;
|
|
struct target_sock_filter *tfilter;
|
|
struct sock_fprog fprog;
|
|
struct sock_filter *filter;
|
|
int i;
|
|
|
|
if (optlen != sizeof(*tfprog)) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
if (!lock_user_struct(VERIFY_READ, tfprog, optval_addr, 0)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
if (!lock_user_struct(VERIFY_READ, tfilter,
|
|
tswapal(tfprog->filter), 0)) {
|
|
unlock_user_struct(tfprog, optval_addr, 1);
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
fprog.len = tswap16(tfprog->len);
|
|
filter = g_try_new(struct sock_filter, fprog.len);
|
|
if (filter == NULL) {
|
|
unlock_user_struct(tfilter, tfprog->filter, 1);
|
|
unlock_user_struct(tfprog, optval_addr, 1);
|
|
return -TARGET_ENOMEM;
|
|
}
|
|
for (i = 0; i < fprog.len; i++) {
|
|
filter[i].code = tswap16(tfilter[i].code);
|
|
filter[i].jt = tfilter[i].jt;
|
|
filter[i].jf = tfilter[i].jf;
|
|
filter[i].k = tswap32(tfilter[i].k);
|
|
}
|
|
fprog.filter = filter;
|
|
|
|
ret = get_errno(setsockopt(sockfd, SOL_SOCKET,
|
|
SO_ATTACH_FILTER, &fprog, sizeof(fprog)));
|
|
g_free(filter);
|
|
|
|
unlock_user_struct(tfilter, tfprog->filter, 1);
|
|
unlock_user_struct(tfprog, optval_addr, 1);
|
|
return ret;
|
|
}
|
|
case TARGET_SO_BINDTODEVICE:
|
|
{
|
|
char *dev_ifname, *addr_ifname;
|
|
|
|
if (optlen > IFNAMSIZ - 1) {
|
|
optlen = IFNAMSIZ - 1;
|
|
}
|
|
dev_ifname = lock_user(VERIFY_READ, optval_addr, optlen, 1);
|
|
if (!dev_ifname) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
optname = SO_BINDTODEVICE;
|
|
addr_ifname = alloca(IFNAMSIZ);
|
|
memcpy(addr_ifname, dev_ifname, optlen);
|
|
addr_ifname[optlen] = 0;
|
|
ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname,
|
|
addr_ifname, optlen));
|
|
unlock_user (dev_ifname, optval_addr, 0);
|
|
return ret;
|
|
}
|
|
case TARGET_SO_LINGER:
|
|
{
|
|
struct linger lg;
|
|
struct target_linger *tlg;
|
|
|
|
if (optlen != sizeof(struct target_linger)) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
if (!lock_user_struct(VERIFY_READ, tlg, optval_addr, 1)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
__get_user(lg.l_onoff, &tlg->l_onoff);
|
|
__get_user(lg.l_linger, &tlg->l_linger);
|
|
ret = get_errno(setsockopt(sockfd, SOL_SOCKET, SO_LINGER,
|
|
&lg, sizeof(lg)));
|
|
unlock_user_struct(tlg, optval_addr, 0);
|
|
return ret;
|
|
}
|
|
/* Options with 'int' argument. */
|
|
case TARGET_SO_DEBUG:
|
|
optname = SO_DEBUG;
|
|
break;
|
|
case TARGET_SO_REUSEADDR:
|
|
optname = SO_REUSEADDR;
|
|
break;
|
|
#ifdef SO_REUSEPORT
|
|
case TARGET_SO_REUSEPORT:
|
|
optname = SO_REUSEPORT;
|
|
break;
|
|
#endif
|
|
case TARGET_SO_TYPE:
|
|
optname = SO_TYPE;
|
|
break;
|
|
case TARGET_SO_ERROR:
|
|
optname = SO_ERROR;
|
|
break;
|
|
case TARGET_SO_DONTROUTE:
|
|
optname = SO_DONTROUTE;
|
|
break;
|
|
case TARGET_SO_BROADCAST:
|
|
optname = SO_BROADCAST;
|
|
break;
|
|
case TARGET_SO_SNDBUF:
|
|
optname = SO_SNDBUF;
|
|
break;
|
|
case TARGET_SO_SNDBUFFORCE:
|
|
optname = SO_SNDBUFFORCE;
|
|
break;
|
|
case TARGET_SO_RCVBUF:
|
|
optname = SO_RCVBUF;
|
|
break;
|
|
case TARGET_SO_RCVBUFFORCE:
|
|
optname = SO_RCVBUFFORCE;
|
|
break;
|
|
case TARGET_SO_KEEPALIVE:
|
|
optname = SO_KEEPALIVE;
|
|
break;
|
|
case TARGET_SO_OOBINLINE:
|
|
optname = SO_OOBINLINE;
|
|
break;
|
|
case TARGET_SO_NO_CHECK:
|
|
optname = SO_NO_CHECK;
|
|
break;
|
|
case TARGET_SO_PRIORITY:
|
|
optname = SO_PRIORITY;
|
|
break;
|
|
#ifdef SO_BSDCOMPAT
|
|
case TARGET_SO_BSDCOMPAT:
|
|
optname = SO_BSDCOMPAT;
|
|
break;
|
|
#endif
|
|
case TARGET_SO_PASSCRED:
|
|
optname = SO_PASSCRED;
|
|
break;
|
|
case TARGET_SO_PASSSEC:
|
|
optname = SO_PASSSEC;
|
|
break;
|
|
case TARGET_SO_TIMESTAMP:
|
|
optname = SO_TIMESTAMP;
|
|
break;
|
|
case TARGET_SO_RCVLOWAT:
|
|
optname = SO_RCVLOWAT;
|
|
break;
|
|
default:
|
|
goto unimplemented;
|
|
}
|
|
if (optlen < sizeof(uint32_t))
|
|
return -TARGET_EINVAL;
|
|
|
|
if (get_user_u32(val, optval_addr))
|
|
return -TARGET_EFAULT;
|
|
ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val)));
|
|
break;
|
|
#ifdef SOL_NETLINK
|
|
case SOL_NETLINK:
|
|
switch (optname) {
|
|
case NETLINK_PKTINFO:
|
|
case NETLINK_ADD_MEMBERSHIP:
|
|
case NETLINK_DROP_MEMBERSHIP:
|
|
case NETLINK_BROADCAST_ERROR:
|
|
case NETLINK_NO_ENOBUFS:
|
|
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0)
|
|
case NETLINK_LISTEN_ALL_NSID:
|
|
case NETLINK_CAP_ACK:
|
|
#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0) */
|
|
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 12, 0)
|
|
case NETLINK_EXT_ACK:
|
|
#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(4, 12, 0) */
|
|
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 20, 0)
|
|
case NETLINK_GET_STRICT_CHK:
|
|
#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(4, 12, 0) */
|
|
break;
|
|
default:
|
|
goto unimplemented;
|
|
}
|
|
val = 0;
|
|
if (optlen < sizeof(uint32_t)) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
if (get_user_u32(val, optval_addr)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = get_errno(setsockopt(sockfd, SOL_NETLINK, optname, &val,
|
|
sizeof(val)));
|
|
break;
|
|
#endif /* SOL_NETLINK */
|
|
default:
|
|
unimplemented:
|
|
qemu_log_mask(LOG_UNIMP, "Unsupported setsockopt level=%d optname=%d\n",
|
|
level, optname);
|
|
ret = -TARGET_ENOPROTOOPT;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/* do_getsockopt() Must return target values and target errnos. */
|
|
static abi_long do_getsockopt(int sockfd, int level, int optname,
|
|
abi_ulong optval_addr, abi_ulong optlen)
|
|
{
|
|
abi_long ret;
|
|
int len, val;
|
|
socklen_t lv;
|
|
|
|
switch(level) {
|
|
case TARGET_SOL_SOCKET:
|
|
level = SOL_SOCKET;
|
|
switch (optname) {
|
|
/* These don't just return a single integer */
|
|
case TARGET_SO_PEERNAME:
|
|
goto unimplemented;
|
|
case TARGET_SO_RCVTIMEO: {
|
|
struct timeval tv;
|
|
socklen_t tvlen;
|
|
|
|
optname = SO_RCVTIMEO;
|
|
|
|
get_timeout:
|
|
if (get_user_u32(len, optlen)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
if (len < 0) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
tvlen = sizeof(tv);
|
|
ret = get_errno(getsockopt(sockfd, level, optname,
|
|
&tv, &tvlen));
|
|
if (ret < 0) {
|
|
return ret;
|
|
}
|
|
if (len > sizeof(struct target_timeval)) {
|
|
len = sizeof(struct target_timeval);
|
|
}
|
|
if (copy_to_user_timeval(optval_addr, &tv)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
if (put_user_u32(len, optlen)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
break;
|
|
}
|
|
case TARGET_SO_SNDTIMEO:
|
|
optname = SO_SNDTIMEO;
|
|
goto get_timeout;
|
|
case TARGET_SO_PEERCRED: {
|
|
struct ucred cr;
|
|
socklen_t crlen;
|
|
struct target_ucred *tcr;
|
|
|
|
if (get_user_u32(len, optlen)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
if (len < 0) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
crlen = sizeof(cr);
|
|
ret = get_errno(getsockopt(sockfd, level, SO_PEERCRED,
|
|
&cr, &crlen));
|
|
if (ret < 0) {
|
|
return ret;
|
|
}
|
|
if (len > crlen) {
|
|
len = crlen;
|
|
}
|
|
if (!lock_user_struct(VERIFY_WRITE, tcr, optval_addr, 0)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
__put_user(cr.pid, &tcr->pid);
|
|
__put_user(cr.uid, &tcr->uid);
|
|
__put_user(cr.gid, &tcr->gid);
|
|
unlock_user_struct(tcr, optval_addr, 1);
|
|
if (put_user_u32(len, optlen)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
break;
|
|
}
|
|
case TARGET_SO_PEERSEC: {
|
|
char *name;
|
|
|
|
if (get_user_u32(len, optlen)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
if (len < 0) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
name = lock_user(VERIFY_WRITE, optval_addr, len, 0);
|
|
if (!name) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
lv = len;
|
|
ret = get_errno(getsockopt(sockfd, level, SO_PEERSEC,
|
|
name, &lv));
|
|
if (put_user_u32(lv, optlen)) {
|
|
ret = -TARGET_EFAULT;
|
|
}
|
|
unlock_user(name, optval_addr, lv);
|
|
break;
|
|
}
|
|
case TARGET_SO_LINGER:
|
|
{
|
|
struct linger lg;
|
|
socklen_t lglen;
|
|
struct target_linger *tlg;
|
|
|
|
if (get_user_u32(len, optlen)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
if (len < 0) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
lglen = sizeof(lg);
|
|
ret = get_errno(getsockopt(sockfd, level, SO_LINGER,
|
|
&lg, &lglen));
|
|
if (ret < 0) {
|
|
return ret;
|
|
}
|
|
if (len > lglen) {
|
|
len = lglen;
|
|
}
|
|
if (!lock_user_struct(VERIFY_WRITE, tlg, optval_addr, 0)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
__put_user(lg.l_onoff, &tlg->l_onoff);
|
|
__put_user(lg.l_linger, &tlg->l_linger);
|
|
unlock_user_struct(tlg, optval_addr, 1);
|
|
if (put_user_u32(len, optlen)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
break;
|
|
}
|
|
/* Options with 'int' argument. */
|
|
case TARGET_SO_DEBUG:
|
|
optname = SO_DEBUG;
|
|
goto int_case;
|
|
case TARGET_SO_REUSEADDR:
|
|
optname = SO_REUSEADDR;
|
|
goto int_case;
|
|
#ifdef SO_REUSEPORT
|
|
case TARGET_SO_REUSEPORT:
|
|
optname = SO_REUSEPORT;
|
|
goto int_case;
|
|
#endif
|
|
case TARGET_SO_TYPE:
|
|
optname = SO_TYPE;
|
|
goto int_case;
|
|
case TARGET_SO_ERROR:
|
|
optname = SO_ERROR;
|
|
goto int_case;
|
|
case TARGET_SO_DONTROUTE:
|
|
optname = SO_DONTROUTE;
|
|
goto int_case;
|
|
case TARGET_SO_BROADCAST:
|
|
optname = SO_BROADCAST;
|
|
goto int_case;
|
|
case TARGET_SO_SNDBUF:
|
|
optname = SO_SNDBUF;
|
|
goto int_case;
|
|
case TARGET_SO_RCVBUF:
|
|
optname = SO_RCVBUF;
|
|
goto int_case;
|
|
case TARGET_SO_KEEPALIVE:
|
|
optname = SO_KEEPALIVE;
|
|
goto int_case;
|
|
case TARGET_SO_OOBINLINE:
|
|
optname = SO_OOBINLINE;
|
|
goto int_case;
|
|
case TARGET_SO_NO_CHECK:
|
|
optname = SO_NO_CHECK;
|
|
goto int_case;
|
|
case TARGET_SO_PRIORITY:
|
|
optname = SO_PRIORITY;
|
|
goto int_case;
|
|
#ifdef SO_BSDCOMPAT
|
|
case TARGET_SO_BSDCOMPAT:
|
|
optname = SO_BSDCOMPAT;
|
|
goto int_case;
|
|
#endif
|
|
case TARGET_SO_PASSCRED:
|
|
optname = SO_PASSCRED;
|
|
goto int_case;
|
|
case TARGET_SO_TIMESTAMP:
|
|
optname = SO_TIMESTAMP;
|
|
goto int_case;
|
|
case TARGET_SO_RCVLOWAT:
|
|
optname = SO_RCVLOWAT;
|
|
goto int_case;
|
|
case TARGET_SO_ACCEPTCONN:
|
|
optname = SO_ACCEPTCONN;
|
|
goto int_case;
|
|
case TARGET_SO_PROTOCOL:
|
|
optname = SO_PROTOCOL;
|
|
goto int_case;
|
|
case TARGET_SO_DOMAIN:
|
|
optname = SO_DOMAIN;
|
|
goto int_case;
|
|
default:
|
|
goto int_case;
|
|
}
|
|
break;
|
|
case SOL_TCP:
|
|
case SOL_UDP:
|
|
/* TCP and UDP options all take an 'int' value. */
|
|
int_case:
|
|
if (get_user_u32(len, optlen))
|
|
return -TARGET_EFAULT;
|
|
if (len < 0)
|
|
return -TARGET_EINVAL;
|
|
lv = sizeof(lv);
|
|
ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
|
|
if (ret < 0)
|
|
return ret;
|
|
if (optname == SO_TYPE) {
|
|
val = host_to_target_sock_type(val);
|
|
}
|
|
if (len > lv)
|
|
len = lv;
|
|
if (len == 4) {
|
|
if (put_user_u32(val, optval_addr))
|
|
return -TARGET_EFAULT;
|
|
} else {
|
|
if (put_user_u8(val, optval_addr))
|
|
return -TARGET_EFAULT;
|
|
}
|
|
if (put_user_u32(len, optlen))
|
|
return -TARGET_EFAULT;
|
|
break;
|
|
case SOL_IP:
|
|
switch(optname) {
|
|
case IP_TOS:
|
|
case IP_TTL:
|
|
case IP_HDRINCL:
|
|
case IP_ROUTER_ALERT:
|
|
case IP_RECVOPTS:
|
|
case IP_RETOPTS:
|
|
case IP_PKTINFO:
|
|
case IP_MTU_DISCOVER:
|
|
case IP_RECVERR:
|
|
case IP_RECVTOS:
|
|
#ifdef IP_FREEBIND
|
|
case IP_FREEBIND:
|
|
#endif
|
|
case IP_MULTICAST_TTL:
|
|
case IP_MULTICAST_LOOP:
|
|
if (get_user_u32(len, optlen))
|
|
return -TARGET_EFAULT;
|
|
if (len < 0)
|
|
return -TARGET_EINVAL;
|
|
lv = sizeof(lv);
|
|
ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
|
|
if (ret < 0)
|
|
return ret;
|
|
if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) {
|
|
len = 1;
|
|
if (put_user_u32(len, optlen)
|
|
|| put_user_u8(val, optval_addr))
|
|
return -TARGET_EFAULT;
|
|
} else {
|
|
if (len > sizeof(int))
|
|
len = sizeof(int);
|
|
if (put_user_u32(len, optlen)
|
|
|| put_user_u32(val, optval_addr))
|
|
return -TARGET_EFAULT;
|
|
}
|
|
break;
|
|
default:
|
|
ret = -TARGET_ENOPROTOOPT;
|
|
break;
|
|
}
|
|
break;
|
|
case SOL_IPV6:
|
|
switch (optname) {
|
|
case IPV6_MTU_DISCOVER:
|
|
case IPV6_MTU:
|
|
case IPV6_V6ONLY:
|
|
case IPV6_RECVPKTINFO:
|
|
case IPV6_UNICAST_HOPS:
|
|
case IPV6_MULTICAST_HOPS:
|
|
case IPV6_MULTICAST_LOOP:
|
|
case IPV6_RECVERR:
|
|
case IPV6_RECVHOPLIMIT:
|
|
case IPV6_2292HOPLIMIT:
|
|
case IPV6_CHECKSUM:
|
|
case IPV6_ADDRFORM:
|
|
case IPV6_2292PKTINFO:
|
|
case IPV6_RECVTCLASS:
|
|
case IPV6_RECVRTHDR:
|
|
case IPV6_2292RTHDR:
|
|
case IPV6_RECVHOPOPTS:
|
|
case IPV6_2292HOPOPTS:
|
|
case IPV6_RECVDSTOPTS:
|
|
case IPV6_2292DSTOPTS:
|
|
case IPV6_TCLASS:
|
|
case IPV6_ADDR_PREFERENCES:
|
|
#ifdef IPV6_RECVPATHMTU
|
|
case IPV6_RECVPATHMTU:
|
|
#endif
|
|
#ifdef IPV6_TRANSPARENT
|
|
case IPV6_TRANSPARENT:
|
|
#endif
|
|
#ifdef IPV6_FREEBIND
|
|
case IPV6_FREEBIND:
|
|
#endif
|
|
#ifdef IPV6_RECVORIGDSTADDR
|
|
case IPV6_RECVORIGDSTADDR:
|
|
#endif
|
|
if (get_user_u32(len, optlen))
|
|
return -TARGET_EFAULT;
|
|
if (len < 0)
|
|
return -TARGET_EINVAL;
|
|
lv = sizeof(lv);
|
|
ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
|
|
if (ret < 0)
|
|
return ret;
|
|
if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) {
|
|
len = 1;
|
|
if (put_user_u32(len, optlen)
|
|
|| put_user_u8(val, optval_addr))
|
|
return -TARGET_EFAULT;
|
|
} else {
|
|
if (len > sizeof(int))
|
|
len = sizeof(int);
|
|
if (put_user_u32(len, optlen)
|
|
|| put_user_u32(val, optval_addr))
|
|
return -TARGET_EFAULT;
|
|
}
|
|
break;
|
|
default:
|
|
ret = -TARGET_ENOPROTOOPT;
|
|
break;
|
|
}
|
|
break;
|
|
#ifdef SOL_NETLINK
|
|
case SOL_NETLINK:
|
|
switch (optname) {
|
|
case NETLINK_PKTINFO:
|
|
case NETLINK_BROADCAST_ERROR:
|
|
case NETLINK_NO_ENOBUFS:
|
|
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0)
|
|
case NETLINK_LISTEN_ALL_NSID:
|
|
case NETLINK_CAP_ACK:
|
|
#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0) */
|
|
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 12, 0)
|
|
case NETLINK_EXT_ACK:
|
|
#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(4, 12, 0) */
|
|
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 20, 0)
|
|
case NETLINK_GET_STRICT_CHK:
|
|
#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(4, 12, 0) */
|
|
if (get_user_u32(len, optlen)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
if (len != sizeof(val)) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
lv = len;
|
|
ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
|
|
if (ret < 0) {
|
|
return ret;
|
|
}
|
|
if (put_user_u32(lv, optlen)
|
|
|| put_user_u32(val, optval_addr)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
break;
|
|
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0)
|
|
case NETLINK_LIST_MEMBERSHIPS:
|
|
{
|
|
uint32_t *results;
|
|
int i;
|
|
if (get_user_u32(len, optlen)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
if (len < 0) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
results = lock_user(VERIFY_WRITE, optval_addr, len, 1);
|
|
if (!results && len > 0) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
lv = len;
|
|
ret = get_errno(getsockopt(sockfd, level, optname, results, &lv));
|
|
if (ret < 0) {
|
|
unlock_user(results, optval_addr, 0);
|
|
return ret;
|
|
}
|
|
/* swap host endianess to target endianess. */
|
|
for (i = 0; i < (len / sizeof(uint32_t)); i++) {
|
|
results[i] = tswap32(results[i]);
|
|
}
|
|
if (put_user_u32(lv, optlen)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
unlock_user(results, optval_addr, 0);
|
|
break;
|
|
}
|
|
#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0) */
|
|
default:
|
|
goto unimplemented;
|
|
}
|
|
break;
|
|
#endif /* SOL_NETLINK */
|
|
default:
|
|
unimplemented:
|
|
qemu_log_mask(LOG_UNIMP,
|
|
"getsockopt level=%d optname=%d not yet supported\n",
|
|
level, optname);
|
|
ret = -TARGET_EOPNOTSUPP;
|
|
break;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/* Convert target low/high pair representing file offset into the host
|
|
* low/high pair. This function doesn't handle offsets bigger than 64 bits
|
|
* as the kernel doesn't handle them either.
|
|
*/
|
|
static void target_to_host_low_high(abi_ulong tlow,
|
|
abi_ulong thigh,
|
|
unsigned long *hlow,
|
|
unsigned long *hhigh)
|
|
{
|
|
uint64_t off = tlow |
|
|
((unsigned long long)thigh << TARGET_LONG_BITS / 2) <<
|
|
TARGET_LONG_BITS / 2;
|
|
|
|
*hlow = off;
|
|
*hhigh = (off >> HOST_LONG_BITS / 2) >> HOST_LONG_BITS / 2;
|
|
}
|
|
|
|
static struct iovec *lock_iovec(int type, abi_ulong target_addr,
|
|
abi_ulong count, int copy)
|
|
{
|
|
struct target_iovec *target_vec;
|
|
struct iovec *vec;
|
|
abi_ulong total_len, max_len;
|
|
int i;
|
|
int err = 0;
|
|
bool bad_address = false;
|
|
|
|
if (count == 0) {
|
|
errno = 0;
|
|
return NULL;
|
|
}
|
|
if (count > IOV_MAX) {
|
|
errno = EINVAL;
|
|
return NULL;
|
|
}
|
|
|
|
vec = g_try_new0(struct iovec, count);
|
|
if (vec == NULL) {
|
|
errno = ENOMEM;
|
|
return NULL;
|
|
}
|
|
|
|
target_vec = lock_user(VERIFY_READ, target_addr,
|
|
count * sizeof(struct target_iovec), 1);
|
|
if (target_vec == NULL) {
|
|
err = EFAULT;
|
|
goto fail2;
|
|
}
|
|
|
|
/* ??? If host page size > target page size, this will result in a
|
|
value larger than what we can actually support. */
|
|
max_len = 0x7fffffff & TARGET_PAGE_MASK;
|
|
total_len = 0;
|
|
|
|
for (i = 0; i < count; i++) {
|
|
abi_ulong base = tswapal(target_vec[i].iov_base);
|
|
abi_long len = tswapal(target_vec[i].iov_len);
|
|
|
|
if (len < 0) {
|
|
err = EINVAL;
|
|
goto fail;
|
|
} else if (len == 0) {
|
|
/* Zero length pointer is ignored. */
|
|
vec[i].iov_base = 0;
|
|
} else {
|
|
vec[i].iov_base = lock_user(type, base, len, copy);
|
|
/* If the first buffer pointer is bad, this is a fault. But
|
|
* subsequent bad buffers will result in a partial write; this
|
|
* is realized by filling the vector with null pointers and
|
|
* zero lengths. */
|
|
if (!vec[i].iov_base) {
|
|
if (i == 0) {
|
|
err = EFAULT;
|
|
goto fail;
|
|
} else {
|
|
bad_address = true;
|
|
}
|
|
}
|
|
if (bad_address) {
|
|
len = 0;
|
|
}
|
|
if (len > max_len - total_len) {
|
|
len = max_len - total_len;
|
|
}
|
|
}
|
|
vec[i].iov_len = len;
|
|
total_len += len;
|
|
}
|
|
|
|
unlock_user(target_vec, target_addr, 0);
|
|
return vec;
|
|
|
|
fail:
|
|
while (--i >= 0) {
|
|
if (tswapal(target_vec[i].iov_len) > 0) {
|
|
unlock_user(vec[i].iov_base, tswapal(target_vec[i].iov_base), 0);
|
|
}
|
|
}
|
|
unlock_user(target_vec, target_addr, 0);
|
|
fail2:
|
|
g_free(vec);
|
|
errno = err;
|
|
return NULL;
|
|
}
|
|
|
|
static void unlock_iovec(struct iovec *vec, abi_ulong target_addr,
|
|
abi_ulong count, int copy)
|
|
{
|
|
struct target_iovec *target_vec;
|
|
int i;
|
|
|
|
target_vec = lock_user(VERIFY_READ, target_addr,
|
|
count * sizeof(struct target_iovec), 1);
|
|
if (target_vec) {
|
|
for (i = 0; i < count; i++) {
|
|
abi_ulong base = tswapal(target_vec[i].iov_base);
|
|
abi_long len = tswapal(target_vec[i].iov_len);
|
|
if (len < 0) {
|
|
break;
|
|
}
|
|
unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0);
|
|
}
|
|
unlock_user(target_vec, target_addr, 0);
|
|
}
|
|
|
|
g_free(vec);
|
|
}
|
|
|
|
static inline int target_to_host_sock_type(int *type)
|
|
{
|
|
int host_type = 0;
|
|
int target_type = *type;
|
|
|
|
switch (target_type & TARGET_SOCK_TYPE_MASK) {
|
|
case TARGET_SOCK_DGRAM:
|
|
host_type = SOCK_DGRAM;
|
|
break;
|
|
case TARGET_SOCK_STREAM:
|
|
host_type = SOCK_STREAM;
|
|
break;
|
|
default:
|
|
host_type = target_type & TARGET_SOCK_TYPE_MASK;
|
|
break;
|
|
}
|
|
if (target_type & TARGET_SOCK_CLOEXEC) {
|
|
#if defined(SOCK_CLOEXEC)
|
|
host_type |= SOCK_CLOEXEC;
|
|
#else
|
|
return -TARGET_EINVAL;
|
|
#endif
|
|
}
|
|
if (target_type & TARGET_SOCK_NONBLOCK) {
|
|
#if defined(SOCK_NONBLOCK)
|
|
host_type |= SOCK_NONBLOCK;
|
|
#elif !defined(O_NONBLOCK)
|
|
return -TARGET_EINVAL;
|
|
#endif
|
|
}
|
|
*type = host_type;
|
|
return 0;
|
|
}
|
|
|
|
/* Try to emulate socket type flags after socket creation. */
|
|
static int sock_flags_fixup(int fd, int target_type)
|
|
{
|
|
#if !defined(SOCK_NONBLOCK) && defined(O_NONBLOCK)
|
|
if (target_type & TARGET_SOCK_NONBLOCK) {
|
|
int flags = fcntl(fd, F_GETFL);
|
|
if (fcntl(fd, F_SETFL, O_NONBLOCK | flags) == -1) {
|
|
close(fd);
|
|
return -TARGET_EINVAL;
|
|
}
|
|
}
|
|
#endif
|
|
return fd;
|
|
}
|
|
|
|
/* do_socket() Must return target values and target errnos. */
|
|
static abi_long do_socket(int domain, int type, int protocol)
|
|
{
|
|
int target_type = type;
|
|
int ret;
|
|
|
|
ret = target_to_host_sock_type(&type);
|
|
if (ret) {
|
|
return ret;
|
|
}
|
|
|
|
if (domain == PF_NETLINK && !(
|
|
#ifdef CONFIG_RTNETLINK
|
|
protocol == NETLINK_ROUTE ||
|
|
#endif
|
|
protocol == NETLINK_KOBJECT_UEVENT ||
|
|
protocol == NETLINK_AUDIT)) {
|
|
return -TARGET_EPROTONOSUPPORT;
|
|
}
|
|
|
|
if (domain == AF_PACKET ||
|
|
(domain == AF_INET && type == SOCK_PACKET)) {
|
|
protocol = tswap16(protocol);
|
|
}
|
|
|
|
ret = get_errno(socket(domain, type, protocol));
|
|
if (ret >= 0) {
|
|
ret = sock_flags_fixup(ret, target_type);
|
|
if (type == SOCK_PACKET) {
|
|
/* Manage an obsolete case :
|
|
* if socket type is SOCK_PACKET, bind by name
|
|
*/
|
|
fd_trans_register(ret, &target_packet_trans);
|
|
} else if (domain == PF_NETLINK) {
|
|
switch (protocol) {
|
|
#ifdef CONFIG_RTNETLINK
|
|
case NETLINK_ROUTE:
|
|
fd_trans_register(ret, &target_netlink_route_trans);
|
|
break;
|
|
#endif
|
|
case NETLINK_KOBJECT_UEVENT:
|
|
/* nothing to do: messages are strings */
|
|
break;
|
|
case NETLINK_AUDIT:
|
|
fd_trans_register(ret, &target_netlink_audit_trans);
|
|
break;
|
|
default:
|
|
g_assert_not_reached();
|
|
}
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/* do_bind() Must return target values and target errnos. */
|
|
static abi_long do_bind(int sockfd, abi_ulong target_addr,
|
|
socklen_t addrlen)
|
|
{
|
|
void *addr;
|
|
abi_long ret;
|
|
|
|
if ((int)addrlen < 0) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
addr = alloca(addrlen+1);
|
|
|
|
ret = target_to_host_sockaddr(sockfd, addr, target_addr, addrlen);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return get_errno(bind(sockfd, addr, addrlen));
|
|
}
|
|
|
|
/* do_connect() Must return target values and target errnos. */
|
|
static abi_long do_connect(int sockfd, abi_ulong target_addr,
|
|
socklen_t addrlen)
|
|
{
|
|
void *addr;
|
|
abi_long ret;
|
|
|
|
if ((int)addrlen < 0) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
addr = alloca(addrlen+1);
|
|
|
|
ret = target_to_host_sockaddr(sockfd, addr, target_addr, addrlen);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return get_errno(safe_connect(sockfd, addr, addrlen));
|
|
}
|
|
|
|
/* do_sendrecvmsg_locked() Must return target values and target errnos. */
|
|
static abi_long do_sendrecvmsg_locked(int fd, struct target_msghdr *msgp,
|
|
int flags, int send)
|
|
{
|
|
abi_long ret, len;
|
|
struct msghdr msg;
|
|
abi_ulong count;
|
|
struct iovec *vec;
|
|
abi_ulong target_vec;
|
|
|
|
if (msgp->msg_name) {
|
|
msg.msg_namelen = tswap32(msgp->msg_namelen);
|
|
msg.msg_name = alloca(msg.msg_namelen+1);
|
|
ret = target_to_host_sockaddr(fd, msg.msg_name,
|
|
tswapal(msgp->msg_name),
|
|
msg.msg_namelen);
|
|
if (ret == -TARGET_EFAULT) {
|
|
/* For connected sockets msg_name and msg_namelen must
|
|
* be ignored, so returning EFAULT immediately is wrong.
|
|
* Instead, pass a bad msg_name to the host kernel, and
|
|
* let it decide whether to return EFAULT or not.
|
|
*/
|
|
msg.msg_name = (void *)-1;
|
|
} else if (ret) {
|
|
goto out2;
|
|
}
|
|
} else {
|
|
msg.msg_name = NULL;
|
|
msg.msg_namelen = 0;
|
|
}
|
|
msg.msg_controllen = 2 * tswapal(msgp->msg_controllen);
|
|
msg.msg_control = alloca(msg.msg_controllen);
|
|
memset(msg.msg_control, 0, msg.msg_controllen);
|
|
|
|
msg.msg_flags = tswap32(msgp->msg_flags);
|
|
|
|
count = tswapal(msgp->msg_iovlen);
|
|
target_vec = tswapal(msgp->msg_iov);
|
|
|
|
if (count > IOV_MAX) {
|
|
/* sendrcvmsg returns a different errno for this condition than
|
|
* readv/writev, so we must catch it here before lock_iovec() does.
|
|
*/
|
|
ret = -TARGET_EMSGSIZE;
|
|
goto out2;
|
|
}
|
|
|
|
vec = lock_iovec(send ? VERIFY_READ : VERIFY_WRITE,
|
|
target_vec, count, send);
|
|
if (vec == NULL) {
|
|
ret = -host_to_target_errno(errno);
|
|
goto out2;
|
|
}
|
|
msg.msg_iovlen = count;
|
|
msg.msg_iov = vec;
|
|
|
|
if (send) {
|
|
if (fd_trans_target_to_host_data(fd)) {
|
|
void *host_msg;
|
|
|
|
host_msg = g_malloc(msg.msg_iov->iov_len);
|
|
memcpy(host_msg, msg.msg_iov->iov_base, msg.msg_iov->iov_len);
|
|
ret = fd_trans_target_to_host_data(fd)(host_msg,
|
|
msg.msg_iov->iov_len);
|
|
if (ret >= 0) {
|
|
msg.msg_iov->iov_base = host_msg;
|
|
ret = get_errno(safe_sendmsg(fd, &msg, flags));
|
|
}
|
|
g_free(host_msg);
|
|
} else {
|
|
ret = target_to_host_cmsg(&msg, msgp);
|
|
if (ret == 0) {
|
|
ret = get_errno(safe_sendmsg(fd, &msg, flags));
|
|
}
|
|
}
|
|
} else {
|
|
ret = get_errno(safe_recvmsg(fd, &msg, flags));
|
|
if (!is_error(ret)) {
|
|
len = ret;
|
|
if (fd_trans_host_to_target_data(fd)) {
|
|
ret = fd_trans_host_to_target_data(fd)(msg.msg_iov->iov_base,
|
|
MIN(msg.msg_iov->iov_len, len));
|
|
}
|
|
if (!is_error(ret)) {
|
|
ret = host_to_target_cmsg(msgp, &msg);
|
|
}
|
|
if (!is_error(ret)) {
|
|
msgp->msg_namelen = tswap32(msg.msg_namelen);
|
|
msgp->msg_flags = tswap32(msg.msg_flags);
|
|
if (msg.msg_name != NULL && msg.msg_name != (void *)-1) {
|
|
ret = host_to_target_sockaddr(tswapal(msgp->msg_name),
|
|
msg.msg_name, msg.msg_namelen);
|
|
if (ret) {
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
ret = len;
|
|
}
|
|
}
|
|
}
|
|
|
|
out:
|
|
unlock_iovec(vec, target_vec, count, !send);
|
|
out2:
|
|
return ret;
|
|
}
|
|
|
|
static abi_long do_sendrecvmsg(int fd, abi_ulong target_msg,
|
|
int flags, int send)
|
|
{
|
|
abi_long ret;
|
|
struct target_msghdr *msgp;
|
|
|
|
if (!lock_user_struct(send ? VERIFY_READ : VERIFY_WRITE,
|
|
msgp,
|
|
target_msg,
|
|
send ? 1 : 0)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = do_sendrecvmsg_locked(fd, msgp, flags, send);
|
|
unlock_user_struct(msgp, target_msg, send ? 0 : 1);
|
|
return ret;
|
|
}
|
|
|
|
/* We don't rely on the C library to have sendmmsg/recvmmsg support,
|
|
* so it might not have this *mmsg-specific flag either.
|
|
*/
|
|
#ifndef MSG_WAITFORONE
|
|
#define MSG_WAITFORONE 0x10000
|
|
#endif
|
|
|
|
static abi_long do_sendrecvmmsg(int fd, abi_ulong target_msgvec,
|
|
unsigned int vlen, unsigned int flags,
|
|
int send)
|
|
{
|
|
struct target_mmsghdr *mmsgp;
|
|
abi_long ret = 0;
|
|
int i;
|
|
|
|
if (vlen > UIO_MAXIOV) {
|
|
vlen = UIO_MAXIOV;
|
|
}
|
|
|
|
mmsgp = lock_user(VERIFY_WRITE, target_msgvec, sizeof(*mmsgp) * vlen, 1);
|
|
if (!mmsgp) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
for (i = 0; i < vlen; i++) {
|
|
ret = do_sendrecvmsg_locked(fd, &mmsgp[i].msg_hdr, flags, send);
|
|
if (is_error(ret)) {
|
|
break;
|
|
}
|
|
mmsgp[i].msg_len = tswap32(ret);
|
|
/* MSG_WAITFORONE turns on MSG_DONTWAIT after one packet */
|
|
if (flags & MSG_WAITFORONE) {
|
|
flags |= MSG_DONTWAIT;
|
|
}
|
|
}
|
|
|
|
unlock_user(mmsgp, target_msgvec, sizeof(*mmsgp) * i);
|
|
|
|
/* Return number of datagrams sent if we sent any at all;
|
|
* otherwise return the error.
|
|
*/
|
|
if (i) {
|
|
return i;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/* do_accept4() Must return target values and target errnos. */
|
|
static abi_long do_accept4(int fd, abi_ulong target_addr,
|
|
abi_ulong target_addrlen_addr, int flags)
|
|
{
|
|
socklen_t addrlen, ret_addrlen;
|
|
void *addr;
|
|
abi_long ret;
|
|
int host_flags;
|
|
|
|
host_flags = target_to_host_bitmask(flags, fcntl_flags_tbl);
|
|
|
|
if (target_addr == 0) {
|
|
return get_errno(safe_accept4(fd, NULL, NULL, host_flags));
|
|
}
|
|
|
|
/* linux returns EFAULT if addrlen pointer is invalid */
|
|
if (get_user_u32(addrlen, target_addrlen_addr))
|
|
return -TARGET_EFAULT;
|
|
|
|
if ((int)addrlen < 0) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
if (!access_ok(thread_cpu, VERIFY_WRITE, target_addr, addrlen)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
addr = alloca(addrlen);
|
|
|
|
ret_addrlen = addrlen;
|
|
ret = get_errno(safe_accept4(fd, addr, &ret_addrlen, host_flags));
|
|
if (!is_error(ret)) {
|
|
host_to_target_sockaddr(target_addr, addr, MIN(addrlen, ret_addrlen));
|
|
if (put_user_u32(ret_addrlen, target_addrlen_addr)) {
|
|
ret = -TARGET_EFAULT;
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/* do_getpeername() Must return target values and target errnos. */
|
|
static abi_long do_getpeername(int fd, abi_ulong target_addr,
|
|
abi_ulong target_addrlen_addr)
|
|
{
|
|
socklen_t addrlen, ret_addrlen;
|
|
void *addr;
|
|
abi_long ret;
|
|
|
|
if (get_user_u32(addrlen, target_addrlen_addr))
|
|
return -TARGET_EFAULT;
|
|
|
|
if ((int)addrlen < 0) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
if (!access_ok(thread_cpu, VERIFY_WRITE, target_addr, addrlen)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
addr = alloca(addrlen);
|
|
|
|
ret_addrlen = addrlen;
|
|
ret = get_errno(getpeername(fd, addr, &ret_addrlen));
|
|
if (!is_error(ret)) {
|
|
host_to_target_sockaddr(target_addr, addr, MIN(addrlen, ret_addrlen));
|
|
if (put_user_u32(ret_addrlen, target_addrlen_addr)) {
|
|
ret = -TARGET_EFAULT;
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/* do_getsockname() Must return target values and target errnos. */
|
|
static abi_long do_getsockname(int fd, abi_ulong target_addr,
|
|
abi_ulong target_addrlen_addr)
|
|
{
|
|
socklen_t addrlen, ret_addrlen;
|
|
void *addr;
|
|
abi_long ret;
|
|
|
|
if (get_user_u32(addrlen, target_addrlen_addr))
|
|
return -TARGET_EFAULT;
|
|
|
|
if ((int)addrlen < 0) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
if (!access_ok(thread_cpu, VERIFY_WRITE, target_addr, addrlen)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
addr = alloca(addrlen);
|
|
|
|
ret_addrlen = addrlen;
|
|
ret = get_errno(getsockname(fd, addr, &ret_addrlen));
|
|
if (!is_error(ret)) {
|
|
host_to_target_sockaddr(target_addr, addr, MIN(addrlen, ret_addrlen));
|
|
if (put_user_u32(ret_addrlen, target_addrlen_addr)) {
|
|
ret = -TARGET_EFAULT;
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/* do_socketpair() Must return target values and target errnos. */
|
|
static abi_long do_socketpair(int domain, int type, int protocol,
|
|
abi_ulong target_tab_addr)
|
|
{
|
|
int tab[2];
|
|
abi_long ret;
|
|
|
|
target_to_host_sock_type(&type);
|
|
|
|
ret = get_errno(socketpair(domain, type, protocol, tab));
|
|
if (!is_error(ret)) {
|
|
if (put_user_s32(tab[0], target_tab_addr)
|
|
|| put_user_s32(tab[1], target_tab_addr + sizeof(tab[0])))
|
|
ret = -TARGET_EFAULT;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/* do_sendto() Must return target values and target errnos. */
|
|
static abi_long do_sendto(int fd, abi_ulong msg, size_t len, int flags,
|
|
abi_ulong target_addr, socklen_t addrlen)
|
|
{
|
|
void *addr;
|
|
void *host_msg;
|
|
void *copy_msg = NULL;
|
|
abi_long ret;
|
|
|
|
if ((int)addrlen < 0) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
host_msg = lock_user(VERIFY_READ, msg, len, 1);
|
|
if (!host_msg)
|
|
return -TARGET_EFAULT;
|
|
if (fd_trans_target_to_host_data(fd)) {
|
|
copy_msg = host_msg;
|
|
host_msg = g_malloc(len);
|
|
memcpy(host_msg, copy_msg, len);
|
|
ret = fd_trans_target_to_host_data(fd)(host_msg, len);
|
|
if (ret < 0) {
|
|
goto fail;
|
|
}
|
|
}
|
|
if (target_addr) {
|
|
addr = alloca(addrlen+1);
|
|
ret = target_to_host_sockaddr(fd, addr, target_addr, addrlen);
|
|
if (ret) {
|
|
goto fail;
|
|
}
|
|
ret = get_errno(safe_sendto(fd, host_msg, len, flags, addr, addrlen));
|
|
} else {
|
|
ret = get_errno(safe_sendto(fd, host_msg, len, flags, NULL, 0));
|
|
}
|
|
fail:
|
|
if (copy_msg) {
|
|
g_free(host_msg);
|
|
host_msg = copy_msg;
|
|
}
|
|
unlock_user(host_msg, msg, 0);
|
|
return ret;
|
|
}
|
|
|
|
/* do_recvfrom() Must return target values and target errnos. */
|
|
static abi_long do_recvfrom(int fd, abi_ulong msg, size_t len, int flags,
|
|
abi_ulong target_addr,
|
|
abi_ulong target_addrlen)
|
|
{
|
|
socklen_t addrlen, ret_addrlen;
|
|
void *addr;
|
|
void *host_msg;
|
|
abi_long ret;
|
|
|
|
if (!msg) {
|
|
host_msg = NULL;
|
|
} else {
|
|
host_msg = lock_user(VERIFY_WRITE, msg, len, 0);
|
|
if (!host_msg) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
if (target_addr) {
|
|
if (get_user_u32(addrlen, target_addrlen)) {
|
|
ret = -TARGET_EFAULT;
|
|
goto fail;
|
|
}
|
|
if ((int)addrlen < 0) {
|
|
ret = -TARGET_EINVAL;
|
|
goto fail;
|
|
}
|
|
addr = alloca(addrlen);
|
|
ret_addrlen = addrlen;
|
|
ret = get_errno(safe_recvfrom(fd, host_msg, len, flags,
|
|
addr, &ret_addrlen));
|
|
} else {
|
|
addr = NULL; /* To keep compiler quiet. */
|
|
addrlen = 0; /* To keep compiler quiet. */
|
|
ret = get_errno(safe_recvfrom(fd, host_msg, len, flags, NULL, 0));
|
|
}
|
|
if (!is_error(ret)) {
|
|
if (fd_trans_host_to_target_data(fd)) {
|
|
abi_long trans;
|
|
trans = fd_trans_host_to_target_data(fd)(host_msg, MIN(ret, len));
|
|
if (is_error(trans)) {
|
|
ret = trans;
|
|
goto fail;
|
|
}
|
|
}
|
|
if (target_addr) {
|
|
host_to_target_sockaddr(target_addr, addr,
|
|
MIN(addrlen, ret_addrlen));
|
|
if (put_user_u32(ret_addrlen, target_addrlen)) {
|
|
ret = -TARGET_EFAULT;
|
|
goto fail;
|
|
}
|
|
}
|
|
unlock_user(host_msg, msg, len);
|
|
} else {
|
|
fail:
|
|
unlock_user(host_msg, msg, 0);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
#ifdef TARGET_NR_socketcall
|
|
/* do_socketcall() must return target values and target errnos. */
|
|
static abi_long do_socketcall(int num, abi_ulong vptr)
|
|
{
|
|
static const unsigned nargs[] = { /* number of arguments per operation */
|
|
[TARGET_SYS_SOCKET] = 3, /* domain, type, protocol */
|
|
[TARGET_SYS_BIND] = 3, /* fd, addr, addrlen */
|
|
[TARGET_SYS_CONNECT] = 3, /* fd, addr, addrlen */
|
|
[TARGET_SYS_LISTEN] = 2, /* fd, backlog */
|
|
[TARGET_SYS_ACCEPT] = 3, /* fd, addr, addrlen */
|
|
[TARGET_SYS_GETSOCKNAME] = 3, /* fd, addr, addrlen */
|
|
[TARGET_SYS_GETPEERNAME] = 3, /* fd, addr, addrlen */
|
|
[TARGET_SYS_SOCKETPAIR] = 4, /* domain, type, protocol, tab */
|
|
[TARGET_SYS_SEND] = 4, /* fd, msg, len, flags */
|
|
[TARGET_SYS_RECV] = 4, /* fd, msg, len, flags */
|
|
[TARGET_SYS_SENDTO] = 6, /* fd, msg, len, flags, addr, addrlen */
|
|
[TARGET_SYS_RECVFROM] = 6, /* fd, msg, len, flags, addr, addrlen */
|
|
[TARGET_SYS_SHUTDOWN] = 2, /* fd, how */
|
|
[TARGET_SYS_SETSOCKOPT] = 5, /* fd, level, optname, optval, optlen */
|
|
[TARGET_SYS_GETSOCKOPT] = 5, /* fd, level, optname, optval, optlen */
|
|
[TARGET_SYS_SENDMSG] = 3, /* fd, msg, flags */
|
|
[TARGET_SYS_RECVMSG] = 3, /* fd, msg, flags */
|
|
[TARGET_SYS_ACCEPT4] = 4, /* fd, addr, addrlen, flags */
|
|
[TARGET_SYS_RECVMMSG] = 4, /* fd, msgvec, vlen, flags */
|
|
[TARGET_SYS_SENDMMSG] = 4, /* fd, msgvec, vlen, flags */
|
|
};
|
|
abi_long a[6]; /* max 6 args */
|
|
unsigned i;
|
|
|
|
/* check the range of the first argument num */
|
|
/* (TARGET_SYS_SENDMMSG is the highest among TARGET_SYS_xxx) */
|
|
if (num < 1 || num > TARGET_SYS_SENDMMSG) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
/* ensure we have space for args */
|
|
if (nargs[num] > ARRAY_SIZE(a)) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
/* collect the arguments in a[] according to nargs[] */
|
|
for (i = 0; i < nargs[num]; ++i) {
|
|
if (get_user_ual(a[i], vptr + i * sizeof(abi_long)) != 0) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
/* now when we have the args, invoke the appropriate underlying function */
|
|
switch (num) {
|
|
case TARGET_SYS_SOCKET: /* domain, type, protocol */
|
|
return do_socket(a[0], a[1], a[2]);
|
|
case TARGET_SYS_BIND: /* sockfd, addr, addrlen */
|
|
return do_bind(a[0], a[1], a[2]);
|
|
case TARGET_SYS_CONNECT: /* sockfd, addr, addrlen */
|
|
return do_connect(a[0], a[1], a[2]);
|
|
case TARGET_SYS_LISTEN: /* sockfd, backlog */
|
|
return get_errno(listen(a[0], a[1]));
|
|
case TARGET_SYS_ACCEPT: /* sockfd, addr, addrlen */
|
|
return do_accept4(a[0], a[1], a[2], 0);
|
|
case TARGET_SYS_GETSOCKNAME: /* sockfd, addr, addrlen */
|
|
return do_getsockname(a[0], a[1], a[2]);
|
|
case TARGET_SYS_GETPEERNAME: /* sockfd, addr, addrlen */
|
|
return do_getpeername(a[0], a[1], a[2]);
|
|
case TARGET_SYS_SOCKETPAIR: /* domain, type, protocol, tab */
|
|
return do_socketpair(a[0], a[1], a[2], a[3]);
|
|
case TARGET_SYS_SEND: /* sockfd, msg, len, flags */
|
|
return do_sendto(a[0], a[1], a[2], a[3], 0, 0);
|
|
case TARGET_SYS_RECV: /* sockfd, msg, len, flags */
|
|
return do_recvfrom(a[0], a[1], a[2], a[3], 0, 0);
|
|
case TARGET_SYS_SENDTO: /* sockfd, msg, len, flags, addr, addrlen */
|
|
return do_sendto(a[0], a[1], a[2], a[3], a[4], a[5]);
|
|
case TARGET_SYS_RECVFROM: /* sockfd, msg, len, flags, addr, addrlen */
|
|
return do_recvfrom(a[0], a[1], a[2], a[3], a[4], a[5]);
|
|
case TARGET_SYS_SHUTDOWN: /* sockfd, how */
|
|
return get_errno(shutdown(a[0], a[1]));
|
|
case TARGET_SYS_SETSOCKOPT: /* sockfd, level, optname, optval, optlen */
|
|
return do_setsockopt(a[0], a[1], a[2], a[3], a[4]);
|
|
case TARGET_SYS_GETSOCKOPT: /* sockfd, level, optname, optval, optlen */
|
|
return do_getsockopt(a[0], a[1], a[2], a[3], a[4]);
|
|
case TARGET_SYS_SENDMSG: /* sockfd, msg, flags */
|
|
return do_sendrecvmsg(a[0], a[1], a[2], 1);
|
|
case TARGET_SYS_RECVMSG: /* sockfd, msg, flags */
|
|
return do_sendrecvmsg(a[0], a[1], a[2], 0);
|
|
case TARGET_SYS_ACCEPT4: /* sockfd, addr, addrlen, flags */
|
|
return do_accept4(a[0], a[1], a[2], a[3]);
|
|
case TARGET_SYS_RECVMMSG: /* sockfd, msgvec, vlen, flags */
|
|
return do_sendrecvmmsg(a[0], a[1], a[2], a[3], 0);
|
|
case TARGET_SYS_SENDMMSG: /* sockfd, msgvec, vlen, flags */
|
|
return do_sendrecvmmsg(a[0], a[1], a[2], a[3], 1);
|
|
default:
|
|
qemu_log_mask(LOG_UNIMP, "Unsupported socketcall: %d\n", num);
|
|
return -TARGET_EINVAL;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#define N_SHM_REGIONS 32
|
|
|
|
static struct shm_region {
|
|
abi_ulong start;
|
|
abi_ulong size;
|
|
bool in_use;
|
|
} shm_regions[N_SHM_REGIONS];
|
|
|
|
#ifndef TARGET_SEMID64_DS
|
|
/* asm-generic version of this struct */
|
|
struct target_semid64_ds
|
|
{
|
|
struct target_ipc_perm sem_perm;
|
|
abi_ulong sem_otime;
|
|
#if TARGET_ABI_BITS == 32
|
|
abi_ulong __unused1;
|
|
#endif
|
|
abi_ulong sem_ctime;
|
|
#if TARGET_ABI_BITS == 32
|
|
abi_ulong __unused2;
|
|
#endif
|
|
abi_ulong sem_nsems;
|
|
abi_ulong __unused3;
|
|
abi_ulong __unused4;
|
|
};
|
|
#endif
|
|
|
|
static inline abi_long target_to_host_ipc_perm(struct ipc_perm *host_ip,
|
|
abi_ulong target_addr)
|
|
{
|
|
struct target_ipc_perm *target_ip;
|
|
struct target_semid64_ds *target_sd;
|
|
|
|
if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
|
|
return -TARGET_EFAULT;
|
|
target_ip = &(target_sd->sem_perm);
|
|
host_ip->__key = tswap32(target_ip->__key);
|
|
host_ip->uid = tswap32(target_ip->uid);
|
|
host_ip->gid = tswap32(target_ip->gid);
|
|
host_ip->cuid = tswap32(target_ip->cuid);
|
|
host_ip->cgid = tswap32(target_ip->cgid);
|
|
#if defined(TARGET_ALPHA) || defined(TARGET_MIPS) || defined(TARGET_PPC)
|
|
host_ip->mode = tswap32(target_ip->mode);
|
|
#else
|
|
host_ip->mode = tswap16(target_ip->mode);
|
|
#endif
|
|
#if defined(TARGET_PPC)
|
|
host_ip->__seq = tswap32(target_ip->__seq);
|
|
#else
|
|
host_ip->__seq = tswap16(target_ip->__seq);
|
|
#endif
|
|
unlock_user_struct(target_sd, target_addr, 0);
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long host_to_target_ipc_perm(abi_ulong target_addr,
|
|
struct ipc_perm *host_ip)
|
|
{
|
|
struct target_ipc_perm *target_ip;
|
|
struct target_semid64_ds *target_sd;
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
|
|
return -TARGET_EFAULT;
|
|
target_ip = &(target_sd->sem_perm);
|
|
target_ip->__key = tswap32(host_ip->__key);
|
|
target_ip->uid = tswap32(host_ip->uid);
|
|
target_ip->gid = tswap32(host_ip->gid);
|
|
target_ip->cuid = tswap32(host_ip->cuid);
|
|
target_ip->cgid = tswap32(host_ip->cgid);
|
|
#if defined(TARGET_ALPHA) || defined(TARGET_MIPS) || defined(TARGET_PPC)
|
|
target_ip->mode = tswap32(host_ip->mode);
|
|
#else
|
|
target_ip->mode = tswap16(host_ip->mode);
|
|
#endif
|
|
#if defined(TARGET_PPC)
|
|
target_ip->__seq = tswap32(host_ip->__seq);
|
|
#else
|
|
target_ip->__seq = tswap16(host_ip->__seq);
|
|
#endif
|
|
unlock_user_struct(target_sd, target_addr, 1);
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long target_to_host_semid_ds(struct semid_ds *host_sd,
|
|
abi_ulong target_addr)
|
|
{
|
|
struct target_semid64_ds *target_sd;
|
|
|
|
if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
|
|
return -TARGET_EFAULT;
|
|
if (target_to_host_ipc_perm(&(host_sd->sem_perm),target_addr))
|
|
return -TARGET_EFAULT;
|
|
host_sd->sem_nsems = tswapal(target_sd->sem_nsems);
|
|
host_sd->sem_otime = tswapal(target_sd->sem_otime);
|
|
host_sd->sem_ctime = tswapal(target_sd->sem_ctime);
|
|
unlock_user_struct(target_sd, target_addr, 0);
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long host_to_target_semid_ds(abi_ulong target_addr,
|
|
struct semid_ds *host_sd)
|
|
{
|
|
struct target_semid64_ds *target_sd;
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
|
|
return -TARGET_EFAULT;
|
|
if (host_to_target_ipc_perm(target_addr,&(host_sd->sem_perm)))
|
|
return -TARGET_EFAULT;
|
|
target_sd->sem_nsems = tswapal(host_sd->sem_nsems);
|
|
target_sd->sem_otime = tswapal(host_sd->sem_otime);
|
|
target_sd->sem_ctime = tswapal(host_sd->sem_ctime);
|
|
unlock_user_struct(target_sd, target_addr, 1);
|
|
return 0;
|
|
}
|
|
|
|
struct target_seminfo {
|
|
int semmap;
|
|
int semmni;
|
|
int semmns;
|
|
int semmnu;
|
|
int semmsl;
|
|
int semopm;
|
|
int semume;
|
|
int semusz;
|
|
int semvmx;
|
|
int semaem;
|
|
};
|
|
|
|
static inline abi_long host_to_target_seminfo(abi_ulong target_addr,
|
|
struct seminfo *host_seminfo)
|
|
{
|
|
struct target_seminfo *target_seminfo;
|
|
if (!lock_user_struct(VERIFY_WRITE, target_seminfo, target_addr, 0))
|
|
return -TARGET_EFAULT;
|
|
__put_user(host_seminfo->semmap, &target_seminfo->semmap);
|
|
__put_user(host_seminfo->semmni, &target_seminfo->semmni);
|
|
__put_user(host_seminfo->semmns, &target_seminfo->semmns);
|
|
__put_user(host_seminfo->semmnu, &target_seminfo->semmnu);
|
|
__put_user(host_seminfo->semmsl, &target_seminfo->semmsl);
|
|
__put_user(host_seminfo->semopm, &target_seminfo->semopm);
|
|
__put_user(host_seminfo->semume, &target_seminfo->semume);
|
|
__put_user(host_seminfo->semusz, &target_seminfo->semusz);
|
|
__put_user(host_seminfo->semvmx, &target_seminfo->semvmx);
|
|
__put_user(host_seminfo->semaem, &target_seminfo->semaem);
|
|
unlock_user_struct(target_seminfo, target_addr, 1);
|
|
return 0;
|
|
}
|
|
|
|
union semun {
|
|
int val;
|
|
struct semid_ds *buf;
|
|
unsigned short *array;
|
|
struct seminfo *__buf;
|
|
};
|
|
|
|
union target_semun {
|
|
int val;
|
|
abi_ulong buf;
|
|
abi_ulong array;
|
|
abi_ulong __buf;
|
|
};
|
|
|
|
static inline abi_long target_to_host_semarray(int semid, unsigned short **host_array,
|
|
abi_ulong target_addr)
|
|
{
|
|
int nsems;
|
|
unsigned short *array;
|
|
union semun semun;
|
|
struct semid_ds semid_ds;
|
|
int i, ret;
|
|
|
|
semun.buf = &semid_ds;
|
|
|
|
ret = semctl(semid, 0, IPC_STAT, semun);
|
|
if (ret == -1)
|
|
return get_errno(ret);
|
|
|
|
nsems = semid_ds.sem_nsems;
|
|
|
|
*host_array = g_try_new(unsigned short, nsems);
|
|
if (!*host_array) {
|
|
return -TARGET_ENOMEM;
|
|
}
|
|
array = lock_user(VERIFY_READ, target_addr,
|
|
nsems*sizeof(unsigned short), 1);
|
|
if (!array) {
|
|
g_free(*host_array);
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
for(i=0; i<nsems; i++) {
|
|
__get_user((*host_array)[i], &array[i]);
|
|
}
|
|
unlock_user(array, target_addr, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long host_to_target_semarray(int semid, abi_ulong target_addr,
|
|
unsigned short **host_array)
|
|
{
|
|
int nsems;
|
|
unsigned short *array;
|
|
union semun semun;
|
|
struct semid_ds semid_ds;
|
|
int i, ret;
|
|
|
|
semun.buf = &semid_ds;
|
|
|
|
ret = semctl(semid, 0, IPC_STAT, semun);
|
|
if (ret == -1)
|
|
return get_errno(ret);
|
|
|
|
nsems = semid_ds.sem_nsems;
|
|
|
|
array = lock_user(VERIFY_WRITE, target_addr,
|
|
nsems*sizeof(unsigned short), 0);
|
|
if (!array)
|
|
return -TARGET_EFAULT;
|
|
|
|
for(i=0; i<nsems; i++) {
|
|
__put_user((*host_array)[i], &array[i]);
|
|
}
|
|
g_free(*host_array);
|
|
unlock_user(array, target_addr, 1);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long do_semctl(int semid, int semnum, int cmd,
|
|
abi_ulong target_arg)
|
|
{
|
|
union target_semun target_su = { .buf = target_arg };
|
|
union semun arg;
|
|
struct semid_ds dsarg;
|
|
unsigned short *array = NULL;
|
|
struct seminfo seminfo;
|
|
abi_long ret = -TARGET_EINVAL;
|
|
abi_long err;
|
|
cmd &= 0xff;
|
|
|
|
switch( cmd ) {
|
|
case GETVAL:
|
|
case SETVAL:
|
|
/* In 64 bit cross-endian situations, we will erroneously pick up
|
|
* the wrong half of the union for the "val" element. To rectify
|
|
* this, the entire 8-byte structure is byteswapped, followed by
|
|
* a swap of the 4 byte val field. In other cases, the data is
|
|
* already in proper host byte order. */
|
|
if (sizeof(target_su.val) != (sizeof(target_su.buf))) {
|
|
target_su.buf = tswapal(target_su.buf);
|
|
arg.val = tswap32(target_su.val);
|
|
} else {
|
|
arg.val = target_su.val;
|
|
}
|
|
ret = get_errno(semctl(semid, semnum, cmd, arg));
|
|
break;
|
|
case GETALL:
|
|
case SETALL:
|
|
err = target_to_host_semarray(semid, &array, target_su.array);
|
|
if (err)
|
|
return err;
|
|
arg.array = array;
|
|
ret = get_errno(semctl(semid, semnum, cmd, arg));
|
|
err = host_to_target_semarray(semid, target_su.array, &array);
|
|
if (err)
|
|
return err;
|
|
break;
|
|
case IPC_STAT:
|
|
case IPC_SET:
|
|
case SEM_STAT:
|
|
err = target_to_host_semid_ds(&dsarg, target_su.buf);
|
|
if (err)
|
|
return err;
|
|
arg.buf = &dsarg;
|
|
ret = get_errno(semctl(semid, semnum, cmd, arg));
|
|
err = host_to_target_semid_ds(target_su.buf, &dsarg);
|
|
if (err)
|
|
return err;
|
|
break;
|
|
case IPC_INFO:
|
|
case SEM_INFO:
|
|
arg.__buf = &seminfo;
|
|
ret = get_errno(semctl(semid, semnum, cmd, arg));
|
|
err = host_to_target_seminfo(target_su.__buf, &seminfo);
|
|
if (err)
|
|
return err;
|
|
break;
|
|
case IPC_RMID:
|
|
case GETPID:
|
|
case GETNCNT:
|
|
case GETZCNT:
|
|
ret = get_errno(semctl(semid, semnum, cmd, NULL));
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
struct target_sembuf {
|
|
unsigned short sem_num;
|
|
short sem_op;
|
|
short sem_flg;
|
|
};
|
|
|
|
static inline abi_long target_to_host_sembuf(struct sembuf *host_sembuf,
|
|
abi_ulong target_addr,
|
|
unsigned nsops)
|
|
{
|
|
struct target_sembuf *target_sembuf;
|
|
int i;
|
|
|
|
target_sembuf = lock_user(VERIFY_READ, target_addr,
|
|
nsops*sizeof(struct target_sembuf), 1);
|
|
if (!target_sembuf)
|
|
return -TARGET_EFAULT;
|
|
|
|
for(i=0; i<nsops; i++) {
|
|
__get_user(host_sembuf[i].sem_num, &target_sembuf[i].sem_num);
|
|
__get_user(host_sembuf[i].sem_op, &target_sembuf[i].sem_op);
|
|
__get_user(host_sembuf[i].sem_flg, &target_sembuf[i].sem_flg);
|
|
}
|
|
|
|
unlock_user(target_sembuf, target_addr, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#if defined(TARGET_NR_ipc) || defined(TARGET_NR_semop) || \
|
|
defined(TARGET_NR_semtimedop) || defined(TARGET_NR_semtimedop_time64)
|
|
|
|
/*
|
|
* This macro is required to handle the s390 variants, which passes the
|
|
* arguments in a different order than default.
|
|
*/
|
|
#ifdef __s390x__
|
|
#define SEMTIMEDOP_IPC_ARGS(__nsops, __sops, __timeout) \
|
|
(__nsops), (__timeout), (__sops)
|
|
#else
|
|
#define SEMTIMEDOP_IPC_ARGS(__nsops, __sops, __timeout) \
|
|
(__nsops), 0, (__sops), (__timeout)
|
|
#endif
|
|
|
|
static inline abi_long do_semtimedop(int semid,
|
|
abi_long ptr,
|
|
unsigned nsops,
|
|
abi_long timeout, bool time64)
|
|
{
|
|
struct sembuf *sops;
|
|
struct timespec ts, *pts = NULL;
|
|
abi_long ret;
|
|
|
|
if (timeout) {
|
|
pts = &ts;
|
|
if (time64) {
|
|
if (target_to_host_timespec64(pts, timeout)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
} else {
|
|
if (target_to_host_timespec(pts, timeout)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (nsops > TARGET_SEMOPM) {
|
|
return -TARGET_E2BIG;
|
|
}
|
|
|
|
sops = g_new(struct sembuf, nsops);
|
|
|
|
if (target_to_host_sembuf(sops, ptr, nsops)) {
|
|
g_free(sops);
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
ret = -TARGET_ENOSYS;
|
|
#ifdef __NR_semtimedop
|
|
ret = get_errno(safe_semtimedop(semid, sops, nsops, pts));
|
|
#endif
|
|
#ifdef __NR_ipc
|
|
if (ret == -TARGET_ENOSYS) {
|
|
ret = get_errno(safe_ipc(IPCOP_semtimedop, semid,
|
|
SEMTIMEDOP_IPC_ARGS(nsops, sops, (long)pts)));
|
|
}
|
|
#endif
|
|
g_free(sops);
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
struct target_msqid_ds
|
|
{
|
|
struct target_ipc_perm msg_perm;
|
|
abi_ulong msg_stime;
|
|
#if TARGET_ABI_BITS == 32
|
|
abi_ulong __unused1;
|
|
#endif
|
|
abi_ulong msg_rtime;
|
|
#if TARGET_ABI_BITS == 32
|
|
abi_ulong __unused2;
|
|
#endif
|
|
abi_ulong msg_ctime;
|
|
#if TARGET_ABI_BITS == 32
|
|
abi_ulong __unused3;
|
|
#endif
|
|
abi_ulong __msg_cbytes;
|
|
abi_ulong msg_qnum;
|
|
abi_ulong msg_qbytes;
|
|
abi_ulong msg_lspid;
|
|
abi_ulong msg_lrpid;
|
|
abi_ulong __unused4;
|
|
abi_ulong __unused5;
|
|
};
|
|
|
|
static inline abi_long target_to_host_msqid_ds(struct msqid_ds *host_md,
|
|
abi_ulong target_addr)
|
|
{
|
|
struct target_msqid_ds *target_md;
|
|
|
|
if (!lock_user_struct(VERIFY_READ, target_md, target_addr, 1))
|
|
return -TARGET_EFAULT;
|
|
if (target_to_host_ipc_perm(&(host_md->msg_perm),target_addr))
|
|
return -TARGET_EFAULT;
|
|
host_md->msg_stime = tswapal(target_md->msg_stime);
|
|
host_md->msg_rtime = tswapal(target_md->msg_rtime);
|
|
host_md->msg_ctime = tswapal(target_md->msg_ctime);
|
|
host_md->__msg_cbytes = tswapal(target_md->__msg_cbytes);
|
|
host_md->msg_qnum = tswapal(target_md->msg_qnum);
|
|
host_md->msg_qbytes = tswapal(target_md->msg_qbytes);
|
|
host_md->msg_lspid = tswapal(target_md->msg_lspid);
|
|
host_md->msg_lrpid = tswapal(target_md->msg_lrpid);
|
|
unlock_user_struct(target_md, target_addr, 0);
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long host_to_target_msqid_ds(abi_ulong target_addr,
|
|
struct msqid_ds *host_md)
|
|
{
|
|
struct target_msqid_ds *target_md;
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, target_md, target_addr, 0))
|
|
return -TARGET_EFAULT;
|
|
if (host_to_target_ipc_perm(target_addr,&(host_md->msg_perm)))
|
|
return -TARGET_EFAULT;
|
|
target_md->msg_stime = tswapal(host_md->msg_stime);
|
|
target_md->msg_rtime = tswapal(host_md->msg_rtime);
|
|
target_md->msg_ctime = tswapal(host_md->msg_ctime);
|
|
target_md->__msg_cbytes = tswapal(host_md->__msg_cbytes);
|
|
target_md->msg_qnum = tswapal(host_md->msg_qnum);
|
|
target_md->msg_qbytes = tswapal(host_md->msg_qbytes);
|
|
target_md->msg_lspid = tswapal(host_md->msg_lspid);
|
|
target_md->msg_lrpid = tswapal(host_md->msg_lrpid);
|
|
unlock_user_struct(target_md, target_addr, 1);
|
|
return 0;
|
|
}
|
|
|
|
struct target_msginfo {
|
|
int msgpool;
|
|
int msgmap;
|
|
int msgmax;
|
|
int msgmnb;
|
|
int msgmni;
|
|
int msgssz;
|
|
int msgtql;
|
|
unsigned short int msgseg;
|
|
};
|
|
|
|
static inline abi_long host_to_target_msginfo(abi_ulong target_addr,
|
|
struct msginfo *host_msginfo)
|
|
{
|
|
struct target_msginfo *target_msginfo;
|
|
if (!lock_user_struct(VERIFY_WRITE, target_msginfo, target_addr, 0))
|
|
return -TARGET_EFAULT;
|
|
__put_user(host_msginfo->msgpool, &target_msginfo->msgpool);
|
|
__put_user(host_msginfo->msgmap, &target_msginfo->msgmap);
|
|
__put_user(host_msginfo->msgmax, &target_msginfo->msgmax);
|
|
__put_user(host_msginfo->msgmnb, &target_msginfo->msgmnb);
|
|
__put_user(host_msginfo->msgmni, &target_msginfo->msgmni);
|
|
__put_user(host_msginfo->msgssz, &target_msginfo->msgssz);
|
|
__put_user(host_msginfo->msgtql, &target_msginfo->msgtql);
|
|
__put_user(host_msginfo->msgseg, &target_msginfo->msgseg);
|
|
unlock_user_struct(target_msginfo, target_addr, 1);
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long do_msgctl(int msgid, int cmd, abi_long ptr)
|
|
{
|
|
struct msqid_ds dsarg;
|
|
struct msginfo msginfo;
|
|
abi_long ret = -TARGET_EINVAL;
|
|
|
|
cmd &= 0xff;
|
|
|
|
switch (cmd) {
|
|
case IPC_STAT:
|
|
case IPC_SET:
|
|
case MSG_STAT:
|
|
if (target_to_host_msqid_ds(&dsarg,ptr))
|
|
return -TARGET_EFAULT;
|
|
ret = get_errno(msgctl(msgid, cmd, &dsarg));
|
|
if (host_to_target_msqid_ds(ptr,&dsarg))
|
|
return -TARGET_EFAULT;
|
|
break;
|
|
case IPC_RMID:
|
|
ret = get_errno(msgctl(msgid, cmd, NULL));
|
|
break;
|
|
case IPC_INFO:
|
|
case MSG_INFO:
|
|
ret = get_errno(msgctl(msgid, cmd, (struct msqid_ds *)&msginfo));
|
|
if (host_to_target_msginfo(ptr, &msginfo))
|
|
return -TARGET_EFAULT;
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
struct target_msgbuf {
|
|
abi_long mtype;
|
|
char mtext[1];
|
|
};
|
|
|
|
static inline abi_long do_msgsnd(int msqid, abi_long msgp,
|
|
ssize_t msgsz, int msgflg)
|
|
{
|
|
struct target_msgbuf *target_mb;
|
|
struct msgbuf *host_mb;
|
|
abi_long ret = 0;
|
|
|
|
if (msgsz < 0) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
if (!lock_user_struct(VERIFY_READ, target_mb, msgp, 0))
|
|
return -TARGET_EFAULT;
|
|
host_mb = g_try_malloc(msgsz + sizeof(long));
|
|
if (!host_mb) {
|
|
unlock_user_struct(target_mb, msgp, 0);
|
|
return -TARGET_ENOMEM;
|
|
}
|
|
host_mb->mtype = (abi_long) tswapal(target_mb->mtype);
|
|
memcpy(host_mb->mtext, target_mb->mtext, msgsz);
|
|
ret = -TARGET_ENOSYS;
|
|
#ifdef __NR_msgsnd
|
|
ret = get_errno(safe_msgsnd(msqid, host_mb, msgsz, msgflg));
|
|
#endif
|
|
#ifdef __NR_ipc
|
|
if (ret == -TARGET_ENOSYS) {
|
|
#ifdef __s390x__
|
|
ret = get_errno(safe_ipc(IPCOP_msgsnd, msqid, msgsz, msgflg,
|
|
host_mb));
|
|
#else
|
|
ret = get_errno(safe_ipc(IPCOP_msgsnd, msqid, msgsz, msgflg,
|
|
host_mb, 0));
|
|
#endif
|
|
}
|
|
#endif
|
|
g_free(host_mb);
|
|
unlock_user_struct(target_mb, msgp, 0);
|
|
|
|
return ret;
|
|
}
|
|
|
|
#ifdef __NR_ipc
|
|
#if defined(__sparc__)
|
|
/* SPARC for msgrcv it does not use the kludge on final 2 arguments. */
|
|
#define MSGRCV_ARGS(__msgp, __msgtyp) __msgp, __msgtyp
|
|
#elif defined(__s390x__)
|
|
/* The s390 sys_ipc variant has only five parameters. */
|
|
#define MSGRCV_ARGS(__msgp, __msgtyp) \
|
|
((long int[]){(long int)__msgp, __msgtyp})
|
|
#else
|
|
#define MSGRCV_ARGS(__msgp, __msgtyp) \
|
|
((long int[]){(long int)__msgp, __msgtyp}), 0
|
|
#endif
|
|
#endif
|
|
|
|
static inline abi_long do_msgrcv(int msqid, abi_long msgp,
|
|
ssize_t msgsz, abi_long msgtyp,
|
|
int msgflg)
|
|
{
|
|
struct target_msgbuf *target_mb;
|
|
char *target_mtext;
|
|
struct msgbuf *host_mb;
|
|
abi_long ret = 0;
|
|
|
|
if (msgsz < 0) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, target_mb, msgp, 0))
|
|
return -TARGET_EFAULT;
|
|
|
|
host_mb = g_try_malloc(msgsz + sizeof(long));
|
|
if (!host_mb) {
|
|
ret = -TARGET_ENOMEM;
|
|
goto end;
|
|
}
|
|
ret = -TARGET_ENOSYS;
|
|
#ifdef __NR_msgrcv
|
|
ret = get_errno(safe_msgrcv(msqid, host_mb, msgsz, msgtyp, msgflg));
|
|
#endif
|
|
#ifdef __NR_ipc
|
|
if (ret == -TARGET_ENOSYS) {
|
|
ret = get_errno(safe_ipc(IPCOP_CALL(1, IPCOP_msgrcv), msqid, msgsz,
|
|
msgflg, MSGRCV_ARGS(host_mb, msgtyp)));
|
|
}
|
|
#endif
|
|
|
|
if (ret > 0) {
|
|
abi_ulong target_mtext_addr = msgp + sizeof(abi_ulong);
|
|
target_mtext = lock_user(VERIFY_WRITE, target_mtext_addr, ret, 0);
|
|
if (!target_mtext) {
|
|
ret = -TARGET_EFAULT;
|
|
goto end;
|
|
}
|
|
memcpy(target_mb->mtext, host_mb->mtext, ret);
|
|
unlock_user(target_mtext, target_mtext_addr, ret);
|
|
}
|
|
|
|
target_mb->mtype = tswapal(host_mb->mtype);
|
|
|
|
end:
|
|
if (target_mb)
|
|
unlock_user_struct(target_mb, msgp, 1);
|
|
g_free(host_mb);
|
|
return ret;
|
|
}
|
|
|
|
static inline abi_long target_to_host_shmid_ds(struct shmid_ds *host_sd,
|
|
abi_ulong target_addr)
|
|
{
|
|
struct target_shmid_ds *target_sd;
|
|
|
|
if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
|
|
return -TARGET_EFAULT;
|
|
if (target_to_host_ipc_perm(&(host_sd->shm_perm), target_addr))
|
|
return -TARGET_EFAULT;
|
|
__get_user(host_sd->shm_segsz, &target_sd->shm_segsz);
|
|
__get_user(host_sd->shm_atime, &target_sd->shm_atime);
|
|
__get_user(host_sd->shm_dtime, &target_sd->shm_dtime);
|
|
__get_user(host_sd->shm_ctime, &target_sd->shm_ctime);
|
|
__get_user(host_sd->shm_cpid, &target_sd->shm_cpid);
|
|
__get_user(host_sd->shm_lpid, &target_sd->shm_lpid);
|
|
__get_user(host_sd->shm_nattch, &target_sd->shm_nattch);
|
|
unlock_user_struct(target_sd, target_addr, 0);
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long host_to_target_shmid_ds(abi_ulong target_addr,
|
|
struct shmid_ds *host_sd)
|
|
{
|
|
struct target_shmid_ds *target_sd;
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
|
|
return -TARGET_EFAULT;
|
|
if (host_to_target_ipc_perm(target_addr, &(host_sd->shm_perm)))
|
|
return -TARGET_EFAULT;
|
|
__put_user(host_sd->shm_segsz, &target_sd->shm_segsz);
|
|
__put_user(host_sd->shm_atime, &target_sd->shm_atime);
|
|
__put_user(host_sd->shm_dtime, &target_sd->shm_dtime);
|
|
__put_user(host_sd->shm_ctime, &target_sd->shm_ctime);
|
|
__put_user(host_sd->shm_cpid, &target_sd->shm_cpid);
|
|
__put_user(host_sd->shm_lpid, &target_sd->shm_lpid);
|
|
__put_user(host_sd->shm_nattch, &target_sd->shm_nattch);
|
|
unlock_user_struct(target_sd, target_addr, 1);
|
|
return 0;
|
|
}
|
|
|
|
struct target_shminfo {
|
|
abi_ulong shmmax;
|
|
abi_ulong shmmin;
|
|
abi_ulong shmmni;
|
|
abi_ulong shmseg;
|
|
abi_ulong shmall;
|
|
};
|
|
|
|
static inline abi_long host_to_target_shminfo(abi_ulong target_addr,
|
|
struct shminfo *host_shminfo)
|
|
{
|
|
struct target_shminfo *target_shminfo;
|
|
if (!lock_user_struct(VERIFY_WRITE, target_shminfo, target_addr, 0))
|
|
return -TARGET_EFAULT;
|
|
__put_user(host_shminfo->shmmax, &target_shminfo->shmmax);
|
|
__put_user(host_shminfo->shmmin, &target_shminfo->shmmin);
|
|
__put_user(host_shminfo->shmmni, &target_shminfo->shmmni);
|
|
__put_user(host_shminfo->shmseg, &target_shminfo->shmseg);
|
|
__put_user(host_shminfo->shmall, &target_shminfo->shmall);
|
|
unlock_user_struct(target_shminfo, target_addr, 1);
|
|
return 0;
|
|
}
|
|
|
|
struct target_shm_info {
|
|
int used_ids;
|
|
abi_ulong shm_tot;
|
|
abi_ulong shm_rss;
|
|
abi_ulong shm_swp;
|
|
abi_ulong swap_attempts;
|
|
abi_ulong swap_successes;
|
|
};
|
|
|
|
static inline abi_long host_to_target_shm_info(abi_ulong target_addr,
|
|
struct shm_info *host_shm_info)
|
|
{
|
|
struct target_shm_info *target_shm_info;
|
|
if (!lock_user_struct(VERIFY_WRITE, target_shm_info, target_addr, 0))
|
|
return -TARGET_EFAULT;
|
|
__put_user(host_shm_info->used_ids, &target_shm_info->used_ids);
|
|
__put_user(host_shm_info->shm_tot, &target_shm_info->shm_tot);
|
|
__put_user(host_shm_info->shm_rss, &target_shm_info->shm_rss);
|
|
__put_user(host_shm_info->shm_swp, &target_shm_info->shm_swp);
|
|
__put_user(host_shm_info->swap_attempts, &target_shm_info->swap_attempts);
|
|
__put_user(host_shm_info->swap_successes, &target_shm_info->swap_successes);
|
|
unlock_user_struct(target_shm_info, target_addr, 1);
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long do_shmctl(int shmid, int cmd, abi_long buf)
|
|
{
|
|
struct shmid_ds dsarg;
|
|
struct shminfo shminfo;
|
|
struct shm_info shm_info;
|
|
abi_long ret = -TARGET_EINVAL;
|
|
|
|
cmd &= 0xff;
|
|
|
|
switch(cmd) {
|
|
case IPC_STAT:
|
|
case IPC_SET:
|
|
case SHM_STAT:
|
|
if (target_to_host_shmid_ds(&dsarg, buf))
|
|
return -TARGET_EFAULT;
|
|
ret = get_errno(shmctl(shmid, cmd, &dsarg));
|
|
if (host_to_target_shmid_ds(buf, &dsarg))
|
|
return -TARGET_EFAULT;
|
|
break;
|
|
case IPC_INFO:
|
|
ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shminfo));
|
|
if (host_to_target_shminfo(buf, &shminfo))
|
|
return -TARGET_EFAULT;
|
|
break;
|
|
case SHM_INFO:
|
|
ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shm_info));
|
|
if (host_to_target_shm_info(buf, &shm_info))
|
|
return -TARGET_EFAULT;
|
|
break;
|
|
case IPC_RMID:
|
|
case SHM_LOCK:
|
|
case SHM_UNLOCK:
|
|
ret = get_errno(shmctl(shmid, cmd, NULL));
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
#ifndef TARGET_FORCE_SHMLBA
|
|
/* For most architectures, SHMLBA is the same as the page size;
|
|
* some architectures have larger values, in which case they should
|
|
* define TARGET_FORCE_SHMLBA and provide a target_shmlba() function.
|
|
* This corresponds to the kernel arch code defining __ARCH_FORCE_SHMLBA
|
|
* and defining its own value for SHMLBA.
|
|
*
|
|
* The kernel also permits SHMLBA to be set by the architecture to a
|
|
* value larger than the page size without setting __ARCH_FORCE_SHMLBA;
|
|
* this means that addresses are rounded to the large size if
|
|
* SHM_RND is set but addresses not aligned to that size are not rejected
|
|
* as long as they are at least page-aligned. Since the only architecture
|
|
* which uses this is ia64 this code doesn't provide for that oddity.
|
|
*/
|
|
static inline abi_ulong target_shmlba(CPUArchState *cpu_env)
|
|
{
|
|
return TARGET_PAGE_SIZE;
|
|
}
|
|
#endif
|
|
|
|
static inline abi_ulong do_shmat(CPUArchState *cpu_env,
|
|
int shmid, abi_ulong shmaddr, int shmflg)
|
|
{
|
|
CPUState *cpu = env_cpu(cpu_env);
|
|
abi_long raddr;
|
|
void *host_raddr;
|
|
struct shmid_ds shm_info;
|
|
int i,ret;
|
|
abi_ulong shmlba;
|
|
|
|
/* shmat pointers are always untagged */
|
|
|
|
/* find out the length of the shared memory segment */
|
|
ret = get_errno(shmctl(shmid, IPC_STAT, &shm_info));
|
|
if (is_error(ret)) {
|
|
/* can't get length, bail out */
|
|
return ret;
|
|
}
|
|
|
|
shmlba = target_shmlba(cpu_env);
|
|
|
|
if (shmaddr & (shmlba - 1)) {
|
|
if (shmflg & SHM_RND) {
|
|
shmaddr &= ~(shmlba - 1);
|
|
} else {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
}
|
|
if (!guest_range_valid_untagged(shmaddr, shm_info.shm_segsz)) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
mmap_lock();
|
|
|
|
/*
|
|
* We're mapping shared memory, so ensure we generate code for parallel
|
|
* execution and flush old translations. This will work up to the level
|
|
* supported by the host -- anything that requires EXCP_ATOMIC will not
|
|
* be atomic with respect to an external process.
|
|
*/
|
|
if (!(cpu->tcg_cflags & CF_PARALLEL)) {
|
|
cpu->tcg_cflags |= CF_PARALLEL;
|
|
tb_flush(cpu);
|
|
}
|
|
|
|
if (shmaddr)
|
|
host_raddr = shmat(shmid, (void *)g2h_untagged(shmaddr), shmflg);
|
|
else {
|
|
abi_ulong mmap_start;
|
|
|
|
/* In order to use the host shmat, we need to honor host SHMLBA. */
|
|
mmap_start = mmap_find_vma(0, shm_info.shm_segsz, MAX(SHMLBA, shmlba), false);
|
|
|
|
if (mmap_start == -1) {
|
|
errno = ENOMEM;
|
|
host_raddr = (void *)-1;
|
|
} else
|
|
host_raddr = shmat(shmid, g2h_untagged(mmap_start),
|
|
shmflg | SHM_REMAP);
|
|
}
|
|
|
|
if (host_raddr == (void *)-1) {
|
|
mmap_unlock();
|
|
return get_errno((long)host_raddr);
|
|
}
|
|
raddr=h2g((unsigned long)host_raddr);
|
|
|
|
page_set_flags(raddr, raddr + shm_info.shm_segsz,
|
|
PAGE_VALID | PAGE_RESET | PAGE_READ |
|
|
(shmflg & SHM_RDONLY ? 0 : PAGE_WRITE));
|
|
|
|
for (i = 0; i < N_SHM_REGIONS; i++) {
|
|
if (!shm_regions[i].in_use) {
|
|
shm_regions[i].in_use = true;
|
|
shm_regions[i].start = raddr;
|
|
shm_regions[i].size = shm_info.shm_segsz;
|
|
break;
|
|
}
|
|
}
|
|
|
|
mmap_unlock();
|
|
return raddr;
|
|
|
|
}
|
|
|
|
static inline abi_long do_shmdt(abi_ulong shmaddr)
|
|
{
|
|
int i;
|
|
abi_long rv;
|
|
|
|
/* shmdt pointers are always untagged */
|
|
|
|
mmap_lock();
|
|
|
|
for (i = 0; i < N_SHM_REGIONS; ++i) {
|
|
if (shm_regions[i].in_use && shm_regions[i].start == shmaddr) {
|
|
shm_regions[i].in_use = false;
|
|
page_set_flags(shmaddr, shmaddr + shm_regions[i].size, 0);
|
|
break;
|
|
}
|
|
}
|
|
rv = get_errno(shmdt(g2h_untagged(shmaddr)));
|
|
|
|
mmap_unlock();
|
|
|
|
return rv;
|
|
}
|
|
|
|
#ifdef TARGET_NR_ipc
|
|
/* ??? This only works with linear mappings. */
|
|
/* do_ipc() must return target values and target errnos. */
|
|
static abi_long do_ipc(CPUArchState *cpu_env,
|
|
unsigned int call, abi_long first,
|
|
abi_long second, abi_long third,
|
|
abi_long ptr, abi_long fifth)
|
|
{
|
|
int version;
|
|
abi_long ret = 0;
|
|
|
|
version = call >> 16;
|
|
call &= 0xffff;
|
|
|
|
switch (call) {
|
|
case IPCOP_semop:
|
|
ret = do_semtimedop(first, ptr, second, 0, false);
|
|
break;
|
|
case IPCOP_semtimedop:
|
|
/*
|
|
* The s390 sys_ipc variant has only five parameters instead of six
|
|
* (as for default variant) and the only difference is the handling of
|
|
* SEMTIMEDOP where on s390 the third parameter is used as a pointer
|
|
* to a struct timespec where the generic variant uses fifth parameter.
|
|
*/
|
|
#if defined(TARGET_S390X)
|
|
ret = do_semtimedop(first, ptr, second, third, TARGET_ABI_BITS == 64);
|
|
#else
|
|
ret = do_semtimedop(first, ptr, second, fifth, TARGET_ABI_BITS == 64);
|
|
#endif
|
|
break;
|
|
|
|
case IPCOP_semget:
|
|
ret = get_errno(semget(first, second, third));
|
|
break;
|
|
|
|
case IPCOP_semctl: {
|
|
/* The semun argument to semctl is passed by value, so dereference the
|
|
* ptr argument. */
|
|
abi_ulong atptr;
|
|
get_user_ual(atptr, ptr);
|
|
ret = do_semctl(first, second, third, atptr);
|
|
break;
|
|
}
|
|
|
|
case IPCOP_msgget:
|
|
ret = get_errno(msgget(first, second));
|
|
break;
|
|
|
|
case IPCOP_msgsnd:
|
|
ret = do_msgsnd(first, ptr, second, third);
|
|
break;
|
|
|
|
case IPCOP_msgctl:
|
|
ret = do_msgctl(first, second, ptr);
|
|
break;
|
|
|
|
case IPCOP_msgrcv:
|
|
switch (version) {
|
|
case 0:
|
|
{
|
|
struct target_ipc_kludge {
|
|
abi_long msgp;
|
|
abi_long msgtyp;
|
|
} *tmp;
|
|
|
|
if (!lock_user_struct(VERIFY_READ, tmp, ptr, 1)) {
|
|
ret = -TARGET_EFAULT;
|
|
break;
|
|
}
|
|
|
|
ret = do_msgrcv(first, tswapal(tmp->msgp), second, tswapal(tmp->msgtyp), third);
|
|
|
|
unlock_user_struct(tmp, ptr, 0);
|
|
break;
|
|
}
|
|
default:
|
|
ret = do_msgrcv(first, ptr, second, fifth, third);
|
|
}
|
|
break;
|
|
|
|
case IPCOP_shmat:
|
|
switch (version) {
|
|
default:
|
|
{
|
|
abi_ulong raddr;
|
|
raddr = do_shmat(cpu_env, first, ptr, second);
|
|
if (is_error(raddr))
|
|
return get_errno(raddr);
|
|
if (put_user_ual(raddr, third))
|
|
return -TARGET_EFAULT;
|
|
break;
|
|
}
|
|
case 1:
|
|
ret = -TARGET_EINVAL;
|
|
break;
|
|
}
|
|
break;
|
|
case IPCOP_shmdt:
|
|
ret = do_shmdt(ptr);
|
|
break;
|
|
|
|
case IPCOP_shmget:
|
|
/* IPC_* flag values are the same on all linux platforms */
|
|
ret = get_errno(shmget(first, second, third));
|
|
break;
|
|
|
|
/* IPC_* and SHM_* command values are the same on all linux platforms */
|
|
case IPCOP_shmctl:
|
|
ret = do_shmctl(first, second, ptr);
|
|
break;
|
|
default:
|
|
qemu_log_mask(LOG_UNIMP, "Unsupported ipc call: %d (version %d)\n",
|
|
call, version);
|
|
ret = -TARGET_ENOSYS;
|
|
break;
|
|
}
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
/* kernel structure types definitions */
|
|
|
|
#define STRUCT(name, ...) STRUCT_ ## name,
|
|
#define STRUCT_SPECIAL(name) STRUCT_ ## name,
|
|
enum {
|
|
#include "syscall_types.h"
|
|
STRUCT_MAX
|
|
};
|
|
#undef STRUCT
|
|
#undef STRUCT_SPECIAL
|
|
|
|
#define STRUCT(name, ...) static const argtype struct_ ## name ## _def[] = { __VA_ARGS__, TYPE_NULL };
|
|
#define STRUCT_SPECIAL(name)
|
|
#include "syscall_types.h"
|
|
#undef STRUCT
|
|
#undef STRUCT_SPECIAL
|
|
|
|
#define MAX_STRUCT_SIZE 4096
|
|
|
|
#ifdef CONFIG_FIEMAP
|
|
/* So fiemap access checks don't overflow on 32 bit systems.
|
|
* This is very slightly smaller than the limit imposed by
|
|
* the underlying kernel.
|
|
*/
|
|
#define FIEMAP_MAX_EXTENTS ((UINT_MAX - sizeof(struct fiemap)) \
|
|
/ sizeof(struct fiemap_extent))
|
|
|
|
static abi_long do_ioctl_fs_ioc_fiemap(const IOCTLEntry *ie, uint8_t *buf_temp,
|
|
int fd, int cmd, abi_long arg)
|
|
{
|
|
/* The parameter for this ioctl is a struct fiemap followed
|
|
* by an array of struct fiemap_extent whose size is set
|
|
* in fiemap->fm_extent_count. The array is filled in by the
|
|
* ioctl.
|
|
*/
|
|
int target_size_in, target_size_out;
|
|
struct fiemap *fm;
|
|
const argtype *arg_type = ie->arg_type;
|
|
const argtype extent_arg_type[] = { MK_STRUCT(STRUCT_fiemap_extent) };
|
|
void *argptr, *p;
|
|
abi_long ret;
|
|
int i, extent_size = thunk_type_size(extent_arg_type, 0);
|
|
uint32_t outbufsz;
|
|
int free_fm = 0;
|
|
|
|
assert(arg_type[0] == TYPE_PTR);
|
|
assert(ie->access == IOC_RW);
|
|
arg_type++;
|
|
target_size_in = thunk_type_size(arg_type, 0);
|
|
argptr = lock_user(VERIFY_READ, arg, target_size_in, 1);
|
|
if (!argptr) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
|
|
unlock_user(argptr, arg, 0);
|
|
fm = (struct fiemap *)buf_temp;
|
|
if (fm->fm_extent_count > FIEMAP_MAX_EXTENTS) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
outbufsz = sizeof (*fm) +
|
|
(sizeof(struct fiemap_extent) * fm->fm_extent_count);
|
|
|
|
if (outbufsz > MAX_STRUCT_SIZE) {
|
|
/* We can't fit all the extents into the fixed size buffer.
|
|
* Allocate one that is large enough and use it instead.
|
|
*/
|
|
fm = g_try_malloc(outbufsz);
|
|
if (!fm) {
|
|
return -TARGET_ENOMEM;
|
|
}
|
|
memcpy(fm, buf_temp, sizeof(struct fiemap));
|
|
free_fm = 1;
|
|
}
|
|
ret = get_errno(safe_ioctl(fd, ie->host_cmd, fm));
|
|
if (!is_error(ret)) {
|
|
target_size_out = target_size_in;
|
|
/* An extent_count of 0 means we were only counting the extents
|
|
* so there are no structs to copy
|
|
*/
|
|
if (fm->fm_extent_count != 0) {
|
|
target_size_out += fm->fm_mapped_extents * extent_size;
|
|
}
|
|
argptr = lock_user(VERIFY_WRITE, arg, target_size_out, 0);
|
|
if (!argptr) {
|
|
ret = -TARGET_EFAULT;
|
|
} else {
|
|
/* Convert the struct fiemap */
|
|
thunk_convert(argptr, fm, arg_type, THUNK_TARGET);
|
|
if (fm->fm_extent_count != 0) {
|
|
p = argptr + target_size_in;
|
|
/* ...and then all the struct fiemap_extents */
|
|
for (i = 0; i < fm->fm_mapped_extents; i++) {
|
|
thunk_convert(p, &fm->fm_extents[i], extent_arg_type,
|
|
THUNK_TARGET);
|
|
p += extent_size;
|
|
}
|
|
}
|
|
unlock_user(argptr, arg, target_size_out);
|
|
}
|
|
}
|
|
if (free_fm) {
|
|
g_free(fm);
|
|
}
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
static abi_long do_ioctl_ifconf(const IOCTLEntry *ie, uint8_t *buf_temp,
|
|
int fd, int cmd, abi_long arg)
|
|
{
|
|
const argtype *arg_type = ie->arg_type;
|
|
int target_size;
|
|
void *argptr;
|
|
int ret;
|
|
struct ifconf *host_ifconf;
|
|
uint32_t outbufsz;
|
|
const argtype ifreq_arg_type[] = { MK_STRUCT(STRUCT_sockaddr_ifreq) };
|
|
const argtype ifreq_max_type[] = { MK_STRUCT(STRUCT_ifmap_ifreq) };
|
|
int target_ifreq_size;
|
|
int nb_ifreq;
|
|
int free_buf = 0;
|
|
int i;
|
|
int target_ifc_len;
|
|
abi_long target_ifc_buf;
|
|
int host_ifc_len;
|
|
char *host_ifc_buf;
|
|
|
|
assert(arg_type[0] == TYPE_PTR);
|
|
assert(ie->access == IOC_RW);
|
|
|
|
arg_type++;
|
|
target_size = thunk_type_size(arg_type, 0);
|
|
|
|
argptr = lock_user(VERIFY_READ, arg, target_size, 1);
|
|
if (!argptr)
|
|
return -TARGET_EFAULT;
|
|
thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
|
|
unlock_user(argptr, arg, 0);
|
|
|
|
host_ifconf = (struct ifconf *)(unsigned long)buf_temp;
|
|
target_ifc_buf = (abi_long)(unsigned long)host_ifconf->ifc_buf;
|
|
target_ifreq_size = thunk_type_size(ifreq_max_type, 0);
|
|
|
|
if (target_ifc_buf != 0) {
|
|
target_ifc_len = host_ifconf->ifc_len;
|
|
nb_ifreq = target_ifc_len / target_ifreq_size;
|
|
host_ifc_len = nb_ifreq * sizeof(struct ifreq);
|
|
|
|
outbufsz = sizeof(*host_ifconf) + host_ifc_len;
|
|
if (outbufsz > MAX_STRUCT_SIZE) {
|
|
/*
|
|
* We can't fit all the extents into the fixed size buffer.
|
|
* Allocate one that is large enough and use it instead.
|
|
*/
|
|
host_ifconf = g_try_malloc(outbufsz);
|
|
if (!host_ifconf) {
|
|
return -TARGET_ENOMEM;
|
|
}
|
|
memcpy(host_ifconf, buf_temp, sizeof(*host_ifconf));
|
|
free_buf = 1;
|
|
}
|
|
host_ifc_buf = (char *)host_ifconf + sizeof(*host_ifconf);
|
|
|
|
host_ifconf->ifc_len = host_ifc_len;
|
|
} else {
|
|
host_ifc_buf = NULL;
|
|
}
|
|
host_ifconf->ifc_buf = host_ifc_buf;
|
|
|
|
ret = get_errno(safe_ioctl(fd, ie->host_cmd, host_ifconf));
|
|
if (!is_error(ret)) {
|
|
/* convert host ifc_len to target ifc_len */
|
|
|
|
nb_ifreq = host_ifconf->ifc_len / sizeof(struct ifreq);
|
|
target_ifc_len = nb_ifreq * target_ifreq_size;
|
|
host_ifconf->ifc_len = target_ifc_len;
|
|
|
|
/* restore target ifc_buf */
|
|
|
|
host_ifconf->ifc_buf = (char *)(unsigned long)target_ifc_buf;
|
|
|
|
/* copy struct ifconf to target user */
|
|
|
|
argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
|
|
if (!argptr)
|
|
return -TARGET_EFAULT;
|
|
thunk_convert(argptr, host_ifconf, arg_type, THUNK_TARGET);
|
|
unlock_user(argptr, arg, target_size);
|
|
|
|
if (target_ifc_buf != 0) {
|
|
/* copy ifreq[] to target user */
|
|
argptr = lock_user(VERIFY_WRITE, target_ifc_buf, target_ifc_len, 0);
|
|
for (i = 0; i < nb_ifreq ; i++) {
|
|
thunk_convert(argptr + i * target_ifreq_size,
|
|
host_ifc_buf + i * sizeof(struct ifreq),
|
|
ifreq_arg_type, THUNK_TARGET);
|
|
}
|
|
unlock_user(argptr, target_ifc_buf, target_ifc_len);
|
|
}
|
|
}
|
|
|
|
if (free_buf) {
|
|
g_free(host_ifconf);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
#if defined(CONFIG_USBFS)
|
|
#if HOST_LONG_BITS > 64
|
|
#error USBDEVFS thunks do not support >64 bit hosts yet.
|
|
#endif
|
|
struct live_urb {
|
|
uint64_t target_urb_adr;
|
|
uint64_t target_buf_adr;
|
|
char *target_buf_ptr;
|
|
struct usbdevfs_urb host_urb;
|
|
};
|
|
|
|
static GHashTable *usbdevfs_urb_hashtable(void)
|
|
{
|
|
static GHashTable *urb_hashtable;
|
|
|
|
if (!urb_hashtable) {
|
|
urb_hashtable = g_hash_table_new(g_int64_hash, g_int64_equal);
|
|
}
|
|
return urb_hashtable;
|
|
}
|
|
|
|
static void urb_hashtable_insert(struct live_urb *urb)
|
|
{
|
|
GHashTable *urb_hashtable = usbdevfs_urb_hashtable();
|
|
g_hash_table_insert(urb_hashtable, urb, urb);
|
|
}
|
|
|
|
static struct live_urb *urb_hashtable_lookup(uint64_t target_urb_adr)
|
|
{
|
|
GHashTable *urb_hashtable = usbdevfs_urb_hashtable();
|
|
return g_hash_table_lookup(urb_hashtable, &target_urb_adr);
|
|
}
|
|
|
|
static void urb_hashtable_remove(struct live_urb *urb)
|
|
{
|
|
GHashTable *urb_hashtable = usbdevfs_urb_hashtable();
|
|
g_hash_table_remove(urb_hashtable, urb);
|
|
}
|
|
|
|
static abi_long
|
|
do_ioctl_usbdevfs_reapurb(const IOCTLEntry *ie, uint8_t *buf_temp,
|
|
int fd, int cmd, abi_long arg)
|
|
{
|
|
const argtype usbfsurb_arg_type[] = { MK_STRUCT(STRUCT_usbdevfs_urb) };
|
|
const argtype ptrvoid_arg_type[] = { TYPE_PTRVOID, 0, 0 };
|
|
struct live_urb *lurb;
|
|
void *argptr;
|
|
uint64_t hurb;
|
|
int target_size;
|
|
uintptr_t target_urb_adr;
|
|
abi_long ret;
|
|
|
|
target_size = thunk_type_size(usbfsurb_arg_type, THUNK_TARGET);
|
|
|
|
memset(buf_temp, 0, sizeof(uint64_t));
|
|
ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
|
|
if (is_error(ret)) {
|
|
return ret;
|
|
}
|
|
|
|
memcpy(&hurb, buf_temp, sizeof(uint64_t));
|
|
lurb = (void *)((uintptr_t)hurb - offsetof(struct live_urb, host_urb));
|
|
if (!lurb->target_urb_adr) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
urb_hashtable_remove(lurb);
|
|
unlock_user(lurb->target_buf_ptr, lurb->target_buf_adr,
|
|
lurb->host_urb.buffer_length);
|
|
lurb->target_buf_ptr = NULL;
|
|
|
|
/* restore the guest buffer pointer */
|
|
lurb->host_urb.buffer = (void *)(uintptr_t)lurb->target_buf_adr;
|
|
|
|
/* update the guest urb struct */
|
|
argptr = lock_user(VERIFY_WRITE, lurb->target_urb_adr, target_size, 0);
|
|
if (!argptr) {
|
|
g_free(lurb);
|
|
return -TARGET_EFAULT;
|
|
}
|
|
thunk_convert(argptr, &lurb->host_urb, usbfsurb_arg_type, THUNK_TARGET);
|
|
unlock_user(argptr, lurb->target_urb_adr, target_size);
|
|
|
|
target_size = thunk_type_size(ptrvoid_arg_type, THUNK_TARGET);
|
|
/* write back the urb handle */
|
|
argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
|
|
if (!argptr) {
|
|
g_free(lurb);
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
/* GHashTable uses 64-bit keys but thunk_convert expects uintptr_t */
|
|
target_urb_adr = lurb->target_urb_adr;
|
|
thunk_convert(argptr, &target_urb_adr, ptrvoid_arg_type, THUNK_TARGET);
|
|
unlock_user(argptr, arg, target_size);
|
|
|
|
g_free(lurb);
|
|
return ret;
|
|
}
|
|
|
|
static abi_long
|
|
do_ioctl_usbdevfs_discardurb(const IOCTLEntry *ie,
|
|
uint8_t *buf_temp __attribute__((unused)),
|
|
int fd, int cmd, abi_long arg)
|
|
{
|
|
struct live_urb *lurb;
|
|
|
|
/* map target address back to host URB with metadata. */
|
|
lurb = urb_hashtable_lookup(arg);
|
|
if (!lurb) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
return get_errno(safe_ioctl(fd, ie->host_cmd, &lurb->host_urb));
|
|
}
|
|
|
|
static abi_long
|
|
do_ioctl_usbdevfs_submiturb(const IOCTLEntry *ie, uint8_t *buf_temp,
|
|
int fd, int cmd, abi_long arg)
|
|
{
|
|
const argtype *arg_type = ie->arg_type;
|
|
int target_size;
|
|
abi_long ret;
|
|
void *argptr;
|
|
int rw_dir;
|
|
struct live_urb *lurb;
|
|
|
|
/*
|
|
* each submitted URB needs to map to a unique ID for the
|
|
* kernel, and that unique ID needs to be a pointer to
|
|
* host memory. hence, we need to malloc for each URB.
|
|
* isochronous transfers have a variable length struct.
|
|
*/
|
|
arg_type++;
|
|
target_size = thunk_type_size(arg_type, THUNK_TARGET);
|
|
|
|
/* construct host copy of urb and metadata */
|
|
lurb = g_try_new0(struct live_urb, 1);
|
|
if (!lurb) {
|
|
return -TARGET_ENOMEM;
|
|
}
|
|
|
|
argptr = lock_user(VERIFY_READ, arg, target_size, 1);
|
|
if (!argptr) {
|
|
g_free(lurb);
|
|
return -TARGET_EFAULT;
|
|
}
|
|
thunk_convert(&lurb->host_urb, argptr, arg_type, THUNK_HOST);
|
|
unlock_user(argptr, arg, 0);
|
|
|
|
lurb->target_urb_adr = arg;
|
|
lurb->target_buf_adr = (uintptr_t)lurb->host_urb.buffer;
|
|
|
|
/* buffer space used depends on endpoint type so lock the entire buffer */
|
|
/* control type urbs should check the buffer contents for true direction */
|
|
rw_dir = lurb->host_urb.endpoint & USB_DIR_IN ? VERIFY_WRITE : VERIFY_READ;
|
|
lurb->target_buf_ptr = lock_user(rw_dir, lurb->target_buf_adr,
|
|
lurb->host_urb.buffer_length, 1);
|
|
if (lurb->target_buf_ptr == NULL) {
|
|
g_free(lurb);
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
/* update buffer pointer in host copy */
|
|
lurb->host_urb.buffer = lurb->target_buf_ptr;
|
|
|
|
ret = get_errno(safe_ioctl(fd, ie->host_cmd, &lurb->host_urb));
|
|
if (is_error(ret)) {
|
|
unlock_user(lurb->target_buf_ptr, lurb->target_buf_adr, 0);
|
|
g_free(lurb);
|
|
} else {
|
|
urb_hashtable_insert(lurb);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
#endif /* CONFIG_USBFS */
|
|
|
|
static abi_long do_ioctl_dm(const IOCTLEntry *ie, uint8_t *buf_temp, int fd,
|
|
int cmd, abi_long arg)
|
|
{
|
|
void *argptr;
|
|
struct dm_ioctl *host_dm;
|
|
abi_long guest_data;
|
|
uint32_t guest_data_size;
|
|
int target_size;
|
|
const argtype *arg_type = ie->arg_type;
|
|
abi_long ret;
|
|
void *big_buf = NULL;
|
|
char *host_data;
|
|
|
|
arg_type++;
|
|
target_size = thunk_type_size(arg_type, 0);
|
|
argptr = lock_user(VERIFY_READ, arg, target_size, 1);
|
|
if (!argptr) {
|
|
ret = -TARGET_EFAULT;
|
|
goto out;
|
|
}
|
|
thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
|
|
unlock_user(argptr, arg, 0);
|
|
|
|
/* buf_temp is too small, so fetch things into a bigger buffer */
|
|
big_buf = g_malloc0(((struct dm_ioctl*)buf_temp)->data_size * 2);
|
|
memcpy(big_buf, buf_temp, target_size);
|
|
buf_temp = big_buf;
|
|
host_dm = big_buf;
|
|
|
|
guest_data = arg + host_dm->data_start;
|
|
if ((guest_data - arg) < 0) {
|
|
ret = -TARGET_EINVAL;
|
|
goto out;
|
|
}
|
|
guest_data_size = host_dm->data_size - host_dm->data_start;
|
|
host_data = (char*)host_dm + host_dm->data_start;
|
|
|
|
argptr = lock_user(VERIFY_READ, guest_data, guest_data_size, 1);
|
|
if (!argptr) {
|
|
ret = -TARGET_EFAULT;
|
|
goto out;
|
|
}
|
|
|
|
switch (ie->host_cmd) {
|
|
case DM_REMOVE_ALL:
|
|
case DM_LIST_DEVICES:
|
|
case DM_DEV_CREATE:
|
|
case DM_DEV_REMOVE:
|
|
case DM_DEV_SUSPEND:
|
|
case DM_DEV_STATUS:
|
|
case DM_DEV_WAIT:
|
|
case DM_TABLE_STATUS:
|
|
case DM_TABLE_CLEAR:
|
|
case DM_TABLE_DEPS:
|
|
case DM_LIST_VERSIONS:
|
|
/* no input data */
|
|
break;
|
|
case DM_DEV_RENAME:
|
|
case DM_DEV_SET_GEOMETRY:
|
|
/* data contains only strings */
|
|
memcpy(host_data, argptr, guest_data_size);
|
|
break;
|
|
case DM_TARGET_MSG:
|
|
memcpy(host_data, argptr, guest_data_size);
|
|
*(uint64_t*)host_data = tswap64(*(uint64_t*)argptr);
|
|
break;
|
|
case DM_TABLE_LOAD:
|
|
{
|
|
void *gspec = argptr;
|
|
void *cur_data = host_data;
|
|
const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_spec) };
|
|
int spec_size = thunk_type_size(arg_type, 0);
|
|
int i;
|
|
|
|
for (i = 0; i < host_dm->target_count; i++) {
|
|
struct dm_target_spec *spec = cur_data;
|
|
uint32_t next;
|
|
int slen;
|
|
|
|
thunk_convert(spec, gspec, arg_type, THUNK_HOST);
|
|
slen = strlen((char*)gspec + spec_size) + 1;
|
|
next = spec->next;
|
|
spec->next = sizeof(*spec) + slen;
|
|
strcpy((char*)&spec[1], gspec + spec_size);
|
|
gspec += next;
|
|
cur_data += spec->next;
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
ret = -TARGET_EINVAL;
|
|
unlock_user(argptr, guest_data, 0);
|
|
goto out;
|
|
}
|
|
unlock_user(argptr, guest_data, 0);
|
|
|
|
ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
|
|
if (!is_error(ret)) {
|
|
guest_data = arg + host_dm->data_start;
|
|
guest_data_size = host_dm->data_size - host_dm->data_start;
|
|
argptr = lock_user(VERIFY_WRITE, guest_data, guest_data_size, 0);
|
|
switch (ie->host_cmd) {
|
|
case DM_REMOVE_ALL:
|
|
case DM_DEV_CREATE:
|
|
case DM_DEV_REMOVE:
|
|
case DM_DEV_RENAME:
|
|
case DM_DEV_SUSPEND:
|
|
case DM_DEV_STATUS:
|
|
case DM_TABLE_LOAD:
|
|
case DM_TABLE_CLEAR:
|
|
case DM_TARGET_MSG:
|
|
case DM_DEV_SET_GEOMETRY:
|
|
/* no return data */
|
|
break;
|
|
case DM_LIST_DEVICES:
|
|
{
|
|
struct dm_name_list *nl = (void*)host_dm + host_dm->data_start;
|
|
uint32_t remaining_data = guest_data_size;
|
|
void *cur_data = argptr;
|
|
const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_name_list) };
|
|
int nl_size = 12; /* can't use thunk_size due to alignment */
|
|
|
|
while (1) {
|
|
uint32_t next = nl->next;
|
|
if (next) {
|
|
nl->next = nl_size + (strlen(nl->name) + 1);
|
|
}
|
|
if (remaining_data < nl->next) {
|
|
host_dm->flags |= DM_BUFFER_FULL_FLAG;
|
|
break;
|
|
}
|
|
thunk_convert(cur_data, nl, arg_type, THUNK_TARGET);
|
|
strcpy(cur_data + nl_size, nl->name);
|
|
cur_data += nl->next;
|
|
remaining_data -= nl->next;
|
|
if (!next) {
|
|
break;
|
|
}
|
|
nl = (void*)nl + next;
|
|
}
|
|
break;
|
|
}
|
|
case DM_DEV_WAIT:
|
|
case DM_TABLE_STATUS:
|
|
{
|
|
struct dm_target_spec *spec = (void*)host_dm + host_dm->data_start;
|
|
void *cur_data = argptr;
|
|
const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_spec) };
|
|
int spec_size = thunk_type_size(arg_type, 0);
|
|
int i;
|
|
|
|
for (i = 0; i < host_dm->target_count; i++) {
|
|
uint32_t next = spec->next;
|
|
int slen = strlen((char*)&spec[1]) + 1;
|
|
spec->next = (cur_data - argptr) + spec_size + slen;
|
|
if (guest_data_size < spec->next) {
|
|
host_dm->flags |= DM_BUFFER_FULL_FLAG;
|
|
break;
|
|
}
|
|
thunk_convert(cur_data, spec, arg_type, THUNK_TARGET);
|
|
strcpy(cur_data + spec_size, (char*)&spec[1]);
|
|
cur_data = argptr + spec->next;
|
|
spec = (void*)host_dm + host_dm->data_start + next;
|
|
}
|
|
break;
|
|
}
|
|
case DM_TABLE_DEPS:
|
|
{
|
|
void *hdata = (void*)host_dm + host_dm->data_start;
|
|
int count = *(uint32_t*)hdata;
|
|
uint64_t *hdev = hdata + 8;
|
|
uint64_t *gdev = argptr + 8;
|
|
int i;
|
|
|
|
*(uint32_t*)argptr = tswap32(count);
|
|
for (i = 0; i < count; i++) {
|
|
*gdev = tswap64(*hdev);
|
|
gdev++;
|
|
hdev++;
|
|
}
|
|
break;
|
|
}
|
|
case DM_LIST_VERSIONS:
|
|
{
|
|
struct dm_target_versions *vers = (void*)host_dm + host_dm->data_start;
|
|
uint32_t remaining_data = guest_data_size;
|
|
void *cur_data = argptr;
|
|
const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_versions) };
|
|
int vers_size = thunk_type_size(arg_type, 0);
|
|
|
|
while (1) {
|
|
uint32_t next = vers->next;
|
|
if (next) {
|
|
vers->next = vers_size + (strlen(vers->name) + 1);
|
|
}
|
|
if (remaining_data < vers->next) {
|
|
host_dm->flags |= DM_BUFFER_FULL_FLAG;
|
|
break;
|
|
}
|
|
thunk_convert(cur_data, vers, arg_type, THUNK_TARGET);
|
|
strcpy(cur_data + vers_size, vers->name);
|
|
cur_data += vers->next;
|
|
remaining_data -= vers->next;
|
|
if (!next) {
|
|
break;
|
|
}
|
|
vers = (void*)vers + next;
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
unlock_user(argptr, guest_data, 0);
|
|
ret = -TARGET_EINVAL;
|
|
goto out;
|
|
}
|
|
unlock_user(argptr, guest_data, guest_data_size);
|
|
|
|
argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
|
|
if (!argptr) {
|
|
ret = -TARGET_EFAULT;
|
|
goto out;
|
|
}
|
|
thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
|
|
unlock_user(argptr, arg, target_size);
|
|
}
|
|
out:
|
|
g_free(big_buf);
|
|
return ret;
|
|
}
|
|
|
|
static abi_long do_ioctl_blkpg(const IOCTLEntry *ie, uint8_t *buf_temp, int fd,
|
|
int cmd, abi_long arg)
|
|
{
|
|
void *argptr;
|
|
int target_size;
|
|
const argtype *arg_type = ie->arg_type;
|
|
const argtype part_arg_type[] = { MK_STRUCT(STRUCT_blkpg_partition) };
|
|
abi_long ret;
|
|
|
|
struct blkpg_ioctl_arg *host_blkpg = (void*)buf_temp;
|
|
struct blkpg_partition host_part;
|
|
|
|
/* Read and convert blkpg */
|
|
arg_type++;
|
|
target_size = thunk_type_size(arg_type, 0);
|
|
argptr = lock_user(VERIFY_READ, arg, target_size, 1);
|
|
if (!argptr) {
|
|
ret = -TARGET_EFAULT;
|
|
goto out;
|
|
}
|
|
thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
|
|
unlock_user(argptr, arg, 0);
|
|
|
|
switch (host_blkpg->op) {
|
|
case BLKPG_ADD_PARTITION:
|
|
case BLKPG_DEL_PARTITION:
|
|
/* payload is struct blkpg_partition */
|
|
break;
|
|
default:
|
|
/* Unknown opcode */
|
|
ret = -TARGET_EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
/* Read and convert blkpg->data */
|
|
arg = (abi_long)(uintptr_t)host_blkpg->data;
|
|
target_size = thunk_type_size(part_arg_type, 0);
|
|
argptr = lock_user(VERIFY_READ, arg, target_size, 1);
|
|
if (!argptr) {
|
|
ret = -TARGET_EFAULT;
|
|
goto out;
|
|
}
|
|
thunk_convert(&host_part, argptr, part_arg_type, THUNK_HOST);
|
|
unlock_user(argptr, arg, 0);
|
|
|
|
/* Swizzle the data pointer to our local copy and call! */
|
|
host_blkpg->data = &host_part;
|
|
ret = get_errno(safe_ioctl(fd, ie->host_cmd, host_blkpg));
|
|
|
|
out:
|
|
return ret;
|
|
}
|
|
|
|
static abi_long do_ioctl_rt(const IOCTLEntry *ie, uint8_t *buf_temp,
|
|
int fd, int cmd, abi_long arg)
|
|
{
|
|
const argtype *arg_type = ie->arg_type;
|
|
const StructEntry *se;
|
|
const argtype *field_types;
|
|
const int *dst_offsets, *src_offsets;
|
|
int target_size;
|
|
void *argptr;
|
|
abi_ulong *target_rt_dev_ptr = NULL;
|
|
unsigned long *host_rt_dev_ptr = NULL;
|
|
abi_long ret;
|
|
int i;
|
|
|
|
assert(ie->access == IOC_W);
|
|
assert(*arg_type == TYPE_PTR);
|
|
arg_type++;
|
|
assert(*arg_type == TYPE_STRUCT);
|
|
target_size = thunk_type_size(arg_type, 0);
|
|
argptr = lock_user(VERIFY_READ, arg, target_size, 1);
|
|
if (!argptr) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
arg_type++;
|
|
assert(*arg_type == (int)STRUCT_rtentry);
|
|
se = struct_entries + *arg_type++;
|
|
assert(se->convert[0] == NULL);
|
|
/* convert struct here to be able to catch rt_dev string */
|
|
field_types = se->field_types;
|
|
dst_offsets = se->field_offsets[THUNK_HOST];
|
|
src_offsets = se->field_offsets[THUNK_TARGET];
|
|
for (i = 0; i < se->nb_fields; i++) {
|
|
if (dst_offsets[i] == offsetof(struct rtentry, rt_dev)) {
|
|
assert(*field_types == TYPE_PTRVOID);
|
|
target_rt_dev_ptr = (abi_ulong *)(argptr + src_offsets[i]);
|
|
host_rt_dev_ptr = (unsigned long *)(buf_temp + dst_offsets[i]);
|
|
if (*target_rt_dev_ptr != 0) {
|
|
*host_rt_dev_ptr = (unsigned long)lock_user_string(
|
|
tswapal(*target_rt_dev_ptr));
|
|
if (!*host_rt_dev_ptr) {
|
|
unlock_user(argptr, arg, 0);
|
|
return -TARGET_EFAULT;
|
|
}
|
|
} else {
|
|
*host_rt_dev_ptr = 0;
|
|
}
|
|
field_types++;
|
|
continue;
|
|
}
|
|
field_types = thunk_convert(buf_temp + dst_offsets[i],
|
|
argptr + src_offsets[i],
|
|
field_types, THUNK_HOST);
|
|
}
|
|
unlock_user(argptr, arg, 0);
|
|
|
|
ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
|
|
|
|
assert(host_rt_dev_ptr != NULL);
|
|
assert(target_rt_dev_ptr != NULL);
|
|
if (*host_rt_dev_ptr != 0) {
|
|
unlock_user((void *)*host_rt_dev_ptr,
|
|
*target_rt_dev_ptr, 0);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static abi_long do_ioctl_kdsigaccept(const IOCTLEntry *ie, uint8_t *buf_temp,
|
|
int fd, int cmd, abi_long arg)
|
|
{
|
|
int sig = target_to_host_signal(arg);
|
|
return get_errno(safe_ioctl(fd, ie->host_cmd, sig));
|
|
}
|
|
|
|
static abi_long do_ioctl_SIOCGSTAMP(const IOCTLEntry *ie, uint8_t *buf_temp,
|
|
int fd, int cmd, abi_long arg)
|
|
{
|
|
struct timeval tv;
|
|
abi_long ret;
|
|
|
|
ret = get_errno(safe_ioctl(fd, SIOCGSTAMP, &tv));
|
|
if (is_error(ret)) {
|
|
return ret;
|
|
}
|
|
|
|
if (cmd == (int)TARGET_SIOCGSTAMP_OLD) {
|
|
if (copy_to_user_timeval(arg, &tv)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
} else {
|
|
if (copy_to_user_timeval64(arg, &tv)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static abi_long do_ioctl_SIOCGSTAMPNS(const IOCTLEntry *ie, uint8_t *buf_temp,
|
|
int fd, int cmd, abi_long arg)
|
|
{
|
|
struct timespec ts;
|
|
abi_long ret;
|
|
|
|
ret = get_errno(safe_ioctl(fd, SIOCGSTAMPNS, &ts));
|
|
if (is_error(ret)) {
|
|
return ret;
|
|
}
|
|
|
|
if (cmd == (int)TARGET_SIOCGSTAMPNS_OLD) {
|
|
if (host_to_target_timespec(arg, &ts)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
} else{
|
|
if (host_to_target_timespec64(arg, &ts)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
#ifdef TIOCGPTPEER
|
|
static abi_long do_ioctl_tiocgptpeer(const IOCTLEntry *ie, uint8_t *buf_temp,
|
|
int fd, int cmd, abi_long arg)
|
|
{
|
|
int flags = target_to_host_bitmask(arg, fcntl_flags_tbl);
|
|
return get_errno(safe_ioctl(fd, ie->host_cmd, flags));
|
|
}
|
|
#endif
|
|
|
|
#ifdef HAVE_DRM_H
|
|
|
|
static void unlock_drm_version(struct drm_version *host_ver,
|
|
struct target_drm_version *target_ver,
|
|
bool copy)
|
|
{
|
|
unlock_user(host_ver->name, target_ver->name,
|
|
copy ? host_ver->name_len : 0);
|
|
unlock_user(host_ver->date, target_ver->date,
|
|
copy ? host_ver->date_len : 0);
|
|
unlock_user(host_ver->desc, target_ver->desc,
|
|
copy ? host_ver->desc_len : 0);
|
|
}
|
|
|
|
static inline abi_long target_to_host_drmversion(struct drm_version *host_ver,
|
|
struct target_drm_version *target_ver)
|
|
{
|
|
memset(host_ver, 0, sizeof(*host_ver));
|
|
|
|
__get_user(host_ver->name_len, &target_ver->name_len);
|
|
if (host_ver->name_len) {
|
|
host_ver->name = lock_user(VERIFY_WRITE, target_ver->name,
|
|
target_ver->name_len, 0);
|
|
if (!host_ver->name) {
|
|
return -EFAULT;
|
|
}
|
|
}
|
|
|
|
__get_user(host_ver->date_len, &target_ver->date_len);
|
|
if (host_ver->date_len) {
|
|
host_ver->date = lock_user(VERIFY_WRITE, target_ver->date,
|
|
target_ver->date_len, 0);
|
|
if (!host_ver->date) {
|
|
goto err;
|
|
}
|
|
}
|
|
|
|
__get_user(host_ver->desc_len, &target_ver->desc_len);
|
|
if (host_ver->desc_len) {
|
|
host_ver->desc = lock_user(VERIFY_WRITE, target_ver->desc,
|
|
target_ver->desc_len, 0);
|
|
if (!host_ver->desc) {
|
|
goto err;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
err:
|
|
unlock_drm_version(host_ver, target_ver, false);
|
|
return -EFAULT;
|
|
}
|
|
|
|
static inline void host_to_target_drmversion(
|
|
struct target_drm_version *target_ver,
|
|
struct drm_version *host_ver)
|
|
{
|
|
__put_user(host_ver->version_major, &target_ver->version_major);
|
|
__put_user(host_ver->version_minor, &target_ver->version_minor);
|
|
__put_user(host_ver->version_patchlevel, &target_ver->version_patchlevel);
|
|
__put_user(host_ver->name_len, &target_ver->name_len);
|
|
__put_user(host_ver->date_len, &target_ver->date_len);
|
|
__put_user(host_ver->desc_len, &target_ver->desc_len);
|
|
unlock_drm_version(host_ver, target_ver, true);
|
|
}
|
|
|
|
static abi_long do_ioctl_drm(const IOCTLEntry *ie, uint8_t *buf_temp,
|
|
int fd, int cmd, abi_long arg)
|
|
{
|
|
struct drm_version *ver;
|
|
struct target_drm_version *target_ver;
|
|
abi_long ret;
|
|
|
|
switch (ie->host_cmd) {
|
|
case DRM_IOCTL_VERSION:
|
|
if (!lock_user_struct(VERIFY_WRITE, target_ver, arg, 0)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ver = (struct drm_version *)buf_temp;
|
|
ret = target_to_host_drmversion(ver, target_ver);
|
|
if (!is_error(ret)) {
|
|
ret = get_errno(safe_ioctl(fd, ie->host_cmd, ver));
|
|
if (is_error(ret)) {
|
|
unlock_drm_version(ver, target_ver, false);
|
|
} else {
|
|
host_to_target_drmversion(target_ver, ver);
|
|
}
|
|
}
|
|
unlock_user_struct(target_ver, arg, 0);
|
|
return ret;
|
|
}
|
|
return -TARGET_ENOSYS;
|
|
}
|
|
|
|
static abi_long do_ioctl_drm_i915_getparam(const IOCTLEntry *ie,
|
|
struct drm_i915_getparam *gparam,
|
|
int fd, abi_long arg)
|
|
{
|
|
abi_long ret;
|
|
int value;
|
|
struct target_drm_i915_getparam *target_gparam;
|
|
|
|
if (!lock_user_struct(VERIFY_READ, target_gparam, arg, 0)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
__get_user(gparam->param, &target_gparam->param);
|
|
gparam->value = &value;
|
|
ret = get_errno(safe_ioctl(fd, ie->host_cmd, gparam));
|
|
put_user_s32(value, target_gparam->value);
|
|
|
|
unlock_user_struct(target_gparam, arg, 0);
|
|
return ret;
|
|
}
|
|
|
|
static abi_long do_ioctl_drm_i915(const IOCTLEntry *ie, uint8_t *buf_temp,
|
|
int fd, int cmd, abi_long arg)
|
|
{
|
|
switch (ie->host_cmd) {
|
|
case DRM_IOCTL_I915_GETPARAM:
|
|
return do_ioctl_drm_i915_getparam(ie,
|
|
(struct drm_i915_getparam *)buf_temp,
|
|
fd, arg);
|
|
default:
|
|
return -TARGET_ENOSYS;
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|
|
static abi_long do_ioctl_TUNSETTXFILTER(const IOCTLEntry *ie, uint8_t *buf_temp,
|
|
int fd, int cmd, abi_long arg)
|
|
{
|
|
struct tun_filter *filter = (struct tun_filter *)buf_temp;
|
|
struct tun_filter *target_filter;
|
|
char *target_addr;
|
|
|
|
assert(ie->access == IOC_W);
|
|
|
|
target_filter = lock_user(VERIFY_READ, arg, sizeof(*target_filter), 1);
|
|
if (!target_filter) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
filter->flags = tswap16(target_filter->flags);
|
|
filter->count = tswap16(target_filter->count);
|
|
unlock_user(target_filter, arg, 0);
|
|
|
|
if (filter->count) {
|
|
if (offsetof(struct tun_filter, addr) + filter->count * ETH_ALEN >
|
|
MAX_STRUCT_SIZE) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
target_addr = lock_user(VERIFY_READ,
|
|
arg + offsetof(struct tun_filter, addr),
|
|
filter->count * ETH_ALEN, 1);
|
|
if (!target_addr) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
memcpy(filter->addr, target_addr, filter->count * ETH_ALEN);
|
|
unlock_user(target_addr, arg + offsetof(struct tun_filter, addr), 0);
|
|
}
|
|
|
|
return get_errno(safe_ioctl(fd, ie->host_cmd, filter));
|
|
}
|
|
|
|
IOCTLEntry ioctl_entries[] = {
|
|
#define IOCTL(cmd, access, ...) \
|
|
{ TARGET_ ## cmd, cmd, #cmd, access, 0, { __VA_ARGS__ } },
|
|
#define IOCTL_SPECIAL(cmd, access, dofn, ...) \
|
|
{ TARGET_ ## cmd, cmd, #cmd, access, dofn, { __VA_ARGS__ } },
|
|
#define IOCTL_IGNORE(cmd) \
|
|
{ TARGET_ ## cmd, 0, #cmd },
|
|
#include "ioctls.h"
|
|
{ 0, 0, },
|
|
};
|
|
|
|
/* ??? Implement proper locking for ioctls. */
|
|
/* do_ioctl() Must return target values and target errnos. */
|
|
static abi_long do_ioctl(int fd, int cmd, abi_long arg)
|
|
{
|
|
const IOCTLEntry *ie;
|
|
const argtype *arg_type;
|
|
abi_long ret;
|
|
uint8_t buf_temp[MAX_STRUCT_SIZE];
|
|
int target_size;
|
|
void *argptr;
|
|
|
|
ie = ioctl_entries;
|
|
for(;;) {
|
|
if (ie->target_cmd == 0) {
|
|
qemu_log_mask(
|
|
LOG_UNIMP, "Unsupported ioctl: cmd=0x%04lx\n", (long)cmd);
|
|
return -TARGET_ENOSYS;
|
|
}
|
|
if (ie->target_cmd == cmd)
|
|
break;
|
|
ie++;
|
|
}
|
|
arg_type = ie->arg_type;
|
|
if (ie->do_ioctl) {
|
|
return ie->do_ioctl(ie, buf_temp, fd, cmd, arg);
|
|
} else if (!ie->host_cmd) {
|
|
/* Some architectures define BSD ioctls in their headers
|
|
that are not implemented in Linux. */
|
|
return -TARGET_ENOSYS;
|
|
}
|
|
|
|
switch(arg_type[0]) {
|
|
case TYPE_NULL:
|
|
/* no argument */
|
|
ret = get_errno(safe_ioctl(fd, ie->host_cmd));
|
|
break;
|
|
case TYPE_PTRVOID:
|
|
case TYPE_INT:
|
|
case TYPE_LONG:
|
|
case TYPE_ULONG:
|
|
ret = get_errno(safe_ioctl(fd, ie->host_cmd, arg));
|
|
break;
|
|
case TYPE_PTR:
|
|
arg_type++;
|
|
target_size = thunk_type_size(arg_type, 0);
|
|
switch(ie->access) {
|
|
case IOC_R:
|
|
ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
|
|
if (!is_error(ret)) {
|
|
argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
|
|
if (!argptr)
|
|
return -TARGET_EFAULT;
|
|
thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
|
|
unlock_user(argptr, arg, target_size);
|
|
}
|
|
break;
|
|
case IOC_W:
|
|
argptr = lock_user(VERIFY_READ, arg, target_size, 1);
|
|
if (!argptr)
|
|
return -TARGET_EFAULT;
|
|
thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
|
|
unlock_user(argptr, arg, 0);
|
|
ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
|
|
break;
|
|
default:
|
|
case IOC_RW:
|
|
argptr = lock_user(VERIFY_READ, arg, target_size, 1);
|
|
if (!argptr)
|
|
return -TARGET_EFAULT;
|
|
thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
|
|
unlock_user(argptr, arg, 0);
|
|
ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
|
|
if (!is_error(ret)) {
|
|
argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
|
|
if (!argptr)
|
|
return -TARGET_EFAULT;
|
|
thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
|
|
unlock_user(argptr, arg, target_size);
|
|
}
|
|
break;
|
|
}
|
|
break;
|
|
default:
|
|
qemu_log_mask(LOG_UNIMP,
|
|
"Unsupported ioctl type: cmd=0x%04lx type=%d\n",
|
|
(long)cmd, arg_type[0]);
|
|
ret = -TARGET_ENOSYS;
|
|
break;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static const bitmask_transtbl iflag_tbl[] = {
|
|
{ TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
|
|
{ TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
|
|
{ TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
|
|
{ TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
|
|
{ TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
|
|
{ TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
|
|
{ TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
|
|
{ TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
|
|
{ TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
|
|
{ TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
|
|
{ TARGET_IXON, TARGET_IXON, IXON, IXON },
|
|
{ TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
|
|
{ TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
|
|
{ TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
|
|
{ TARGET_IUTF8, TARGET_IUTF8, IUTF8, IUTF8},
|
|
{ 0, 0, 0, 0 }
|
|
};
|
|
|
|
static const bitmask_transtbl oflag_tbl[] = {
|
|
{ TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
|
|
{ TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
|
|
{ TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
|
|
{ TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
|
|
{ TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
|
|
{ TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
|
|
{ TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
|
|
{ TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
|
|
{ TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
|
|
{ TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
|
|
{ TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
|
|
{ TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
|
|
{ TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
|
|
{ TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
|
|
{ TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
|
|
{ TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
|
|
{ TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
|
|
{ TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
|
|
{ TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
|
|
{ TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
|
|
{ TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
|
|
{ TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
|
|
{ TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
|
|
{ TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
|
|
{ 0, 0, 0, 0 }
|
|
};
|
|
|
|
static const bitmask_transtbl cflag_tbl[] = {
|
|
{ TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
|
|
{ TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
|
|
{ TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
|
|
{ TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
|
|
{ TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
|
|
{ TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
|
|
{ TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
|
|
{ TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
|
|
{ TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
|
|
{ TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
|
|
{ TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
|
|
{ TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
|
|
{ TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
|
|
{ TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
|
|
{ TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
|
|
{ TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
|
|
{ TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
|
|
{ TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
|
|
{ TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
|
|
{ TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
|
|
{ TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
|
|
{ TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
|
|
{ TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
|
|
{ TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
|
|
{ TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
|
|
{ TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
|
|
{ TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
|
|
{ TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
|
|
{ TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
|
|
{ TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
|
|
{ TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
|
|
{ 0, 0, 0, 0 }
|
|
};
|
|
|
|
static const bitmask_transtbl lflag_tbl[] = {
|
|
{ TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
|
|
{ TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
|
|
{ TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
|
|
{ TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
|
|
{ TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
|
|
{ TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
|
|
{ TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
|
|
{ TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
|
|
{ TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
|
|
{ TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
|
|
{ TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
|
|
{ TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
|
|
{ TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
|
|
{ TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
|
|
{ TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
|
|
{ TARGET_EXTPROC, TARGET_EXTPROC, EXTPROC, EXTPROC},
|
|
{ 0, 0, 0, 0 }
|
|
};
|
|
|
|
static void target_to_host_termios (void *dst, const void *src)
|
|
{
|
|
struct host_termios *host = dst;
|
|
const struct target_termios *target = src;
|
|
|
|
host->c_iflag =
|
|
target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
|
|
host->c_oflag =
|
|
target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
|
|
host->c_cflag =
|
|
target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
|
|
host->c_lflag =
|
|
target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
|
|
host->c_line = target->c_line;
|
|
|
|
memset(host->c_cc, 0, sizeof(host->c_cc));
|
|
host->c_cc[VINTR] = target->c_cc[TARGET_VINTR];
|
|
host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT];
|
|
host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];
|
|
host->c_cc[VKILL] = target->c_cc[TARGET_VKILL];
|
|
host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];
|
|
host->c_cc[VTIME] = target->c_cc[TARGET_VTIME];
|
|
host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];
|
|
host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC];
|
|
host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];
|
|
host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP];
|
|
host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP];
|
|
host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];
|
|
host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];
|
|
host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];
|
|
host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];
|
|
host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];
|
|
host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2];
|
|
}
|
|
|
|
static void host_to_target_termios (void *dst, const void *src)
|
|
{
|
|
struct target_termios *target = dst;
|
|
const struct host_termios *host = src;
|
|
|
|
target->c_iflag =
|
|
tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
|
|
target->c_oflag =
|
|
tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
|
|
target->c_cflag =
|
|
tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
|
|
target->c_lflag =
|
|
tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
|
|
target->c_line = host->c_line;
|
|
|
|
memset(target->c_cc, 0, sizeof(target->c_cc));
|
|
target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
|
|
target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
|
|
target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
|
|
target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
|
|
target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
|
|
target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
|
|
target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
|
|
target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
|
|
target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
|
|
target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
|
|
target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
|
|
target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
|
|
target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
|
|
target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
|
|
target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
|
|
target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
|
|
target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
|
|
}
|
|
|
|
static const StructEntry struct_termios_def = {
|
|
.convert = { host_to_target_termios, target_to_host_termios },
|
|
.size = { sizeof(struct target_termios), sizeof(struct host_termios) },
|
|
.align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
|
|
.print = print_termios,
|
|
};
|
|
|
|
static const bitmask_transtbl mmap_flags_tbl[] = {
|
|
#ifdef TARGET_MAP_32BIT
|
|
{ TARGET_MAP_32BIT, TARGET_MAP_32BIT, MAP_32BIT, MAP_32BIT },
|
|
#endif
|
|
{ TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
|
|
{ TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
|
|
{ TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
|
|
{ TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS,
|
|
MAP_ANONYMOUS, MAP_ANONYMOUS },
|
|
{ TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN,
|
|
MAP_GROWSDOWN, MAP_GROWSDOWN },
|
|
{ TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE,
|
|
MAP_DENYWRITE, MAP_DENYWRITE },
|
|
{ TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE,
|
|
MAP_EXECUTABLE, MAP_EXECUTABLE },
|
|
{ TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
|
|
{ TARGET_MAP_NORESERVE, TARGET_MAP_NORESERVE,
|
|
MAP_NORESERVE, MAP_NORESERVE },
|
|
{ TARGET_MAP_HUGETLB, TARGET_MAP_HUGETLB, MAP_HUGETLB, MAP_HUGETLB },
|
|
/* MAP_STACK had been ignored by the kernel for quite some time.
|
|
Recognize it for the target insofar as we do not want to pass
|
|
it through to the host. */
|
|
{ TARGET_MAP_STACK, TARGET_MAP_STACK, 0, 0 },
|
|
{ 0, 0, 0, 0 }
|
|
};
|
|
|
|
/*
|
|
* NOTE: TARGET_ABI32 is defined for TARGET_I386 (but not for TARGET_X86_64)
|
|
* TARGET_I386 is defined if TARGET_X86_64 is defined
|
|
*/
|
|
#if defined(TARGET_I386)
|
|
|
|
/* NOTE: there is really one LDT for all the threads */
|
|
static uint8_t *ldt_table;
|
|
|
|
static abi_long read_ldt(abi_ulong ptr, unsigned long bytecount)
|
|
{
|
|
int size;
|
|
void *p;
|
|
|
|
if (!ldt_table)
|
|
return 0;
|
|
size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
|
|
if (size > bytecount)
|
|
size = bytecount;
|
|
p = lock_user(VERIFY_WRITE, ptr, size, 0);
|
|
if (!p)
|
|
return -TARGET_EFAULT;
|
|
/* ??? Should this by byteswapped? */
|
|
memcpy(p, ldt_table, size);
|
|
unlock_user(p, ptr, size);
|
|
return size;
|
|
}
|
|
|
|
/* XXX: add locking support */
|
|
static abi_long write_ldt(CPUX86State *env,
|
|
abi_ulong ptr, unsigned long bytecount, int oldmode)
|
|
{
|
|
struct target_modify_ldt_ldt_s ldt_info;
|
|
struct target_modify_ldt_ldt_s *target_ldt_info;
|
|
int seg_32bit, contents, read_exec_only, limit_in_pages;
|
|
int seg_not_present, useable, lm;
|
|
uint32_t *lp, entry_1, entry_2;
|
|
|
|
if (bytecount != sizeof(ldt_info))
|
|
return -TARGET_EINVAL;
|
|
if (!lock_user_struct(VERIFY_READ, target_ldt_info, ptr, 1))
|
|
return -TARGET_EFAULT;
|
|
ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
|
|
ldt_info.base_addr = tswapal(target_ldt_info->base_addr);
|
|
ldt_info.limit = tswap32(target_ldt_info->limit);
|
|
ldt_info.flags = tswap32(target_ldt_info->flags);
|
|
unlock_user_struct(target_ldt_info, ptr, 0);
|
|
|
|
if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
|
|
return -TARGET_EINVAL;
|
|
seg_32bit = ldt_info.flags & 1;
|
|
contents = (ldt_info.flags >> 1) & 3;
|
|
read_exec_only = (ldt_info.flags >> 3) & 1;
|
|
limit_in_pages = (ldt_info.flags >> 4) & 1;
|
|
seg_not_present = (ldt_info.flags >> 5) & 1;
|
|
useable = (ldt_info.flags >> 6) & 1;
|
|
#ifdef TARGET_ABI32
|
|
lm = 0;
|
|
#else
|
|
lm = (ldt_info.flags >> 7) & 1;
|
|
#endif
|
|
if (contents == 3) {
|
|
if (oldmode)
|
|
return -TARGET_EINVAL;
|
|
if (seg_not_present == 0)
|
|
return -TARGET_EINVAL;
|
|
}
|
|
/* allocate the LDT */
|
|
if (!ldt_table) {
|
|
env->ldt.base = target_mmap(0,
|
|
TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE,
|
|
PROT_READ|PROT_WRITE,
|
|
MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
|
|
if (env->ldt.base == -1)
|
|
return -TARGET_ENOMEM;
|
|
memset(g2h_untagged(env->ldt.base), 0,
|
|
TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
|
|
env->ldt.limit = 0xffff;
|
|
ldt_table = g2h_untagged(env->ldt.base);
|
|
}
|
|
|
|
/* NOTE: same code as Linux kernel */
|
|
/* Allow LDTs to be cleared by the user. */
|
|
if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
|
|
if (oldmode ||
|
|
(contents == 0 &&
|
|
read_exec_only == 1 &&
|
|
seg_32bit == 0 &&
|
|
limit_in_pages == 0 &&
|
|
seg_not_present == 1 &&
|
|
useable == 0 )) {
|
|
entry_1 = 0;
|
|
entry_2 = 0;
|
|
goto install;
|
|
}
|
|
}
|
|
|
|
entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
|
|
(ldt_info.limit & 0x0ffff);
|
|
entry_2 = (ldt_info.base_addr & 0xff000000) |
|
|
((ldt_info.base_addr & 0x00ff0000) >> 16) |
|
|
(ldt_info.limit & 0xf0000) |
|
|
((read_exec_only ^ 1) << 9) |
|
|
(contents << 10) |
|
|
((seg_not_present ^ 1) << 15) |
|
|
(seg_32bit << 22) |
|
|
(limit_in_pages << 23) |
|
|
(lm << 21) |
|
|
0x7000;
|
|
if (!oldmode)
|
|
entry_2 |= (useable << 20);
|
|
|
|
/* Install the new entry ... */
|
|
install:
|
|
lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
|
|
lp[0] = tswap32(entry_1);
|
|
lp[1] = tswap32(entry_2);
|
|
return 0;
|
|
}
|
|
|
|
/* specific and weird i386 syscalls */
|
|
static abi_long do_modify_ldt(CPUX86State *env, int func, abi_ulong ptr,
|
|
unsigned long bytecount)
|
|
{
|
|
abi_long ret;
|
|
|
|
switch (func) {
|
|
case 0:
|
|
ret = read_ldt(ptr, bytecount);
|
|
break;
|
|
case 1:
|
|
ret = write_ldt(env, ptr, bytecount, 1);
|
|
break;
|
|
case 0x11:
|
|
ret = write_ldt(env, ptr, bytecount, 0);
|
|
break;
|
|
default:
|
|
ret = -TARGET_ENOSYS;
|
|
break;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
#if defined(TARGET_ABI32)
|
|
abi_long do_set_thread_area(CPUX86State *env, abi_ulong ptr)
|
|
{
|
|
uint64_t *gdt_table = g2h_untagged(env->gdt.base);
|
|
struct target_modify_ldt_ldt_s ldt_info;
|
|
struct target_modify_ldt_ldt_s *target_ldt_info;
|
|
int seg_32bit, contents, read_exec_only, limit_in_pages;
|
|
int seg_not_present, useable, lm;
|
|
uint32_t *lp, entry_1, entry_2;
|
|
int i;
|
|
|
|
lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
|
|
if (!target_ldt_info)
|
|
return -TARGET_EFAULT;
|
|
ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
|
|
ldt_info.base_addr = tswapal(target_ldt_info->base_addr);
|
|
ldt_info.limit = tswap32(target_ldt_info->limit);
|
|
ldt_info.flags = tswap32(target_ldt_info->flags);
|
|
if (ldt_info.entry_number == -1) {
|
|
for (i=TARGET_GDT_ENTRY_TLS_MIN; i<=TARGET_GDT_ENTRY_TLS_MAX; i++) {
|
|
if (gdt_table[i] == 0) {
|
|
ldt_info.entry_number = i;
|
|
target_ldt_info->entry_number = tswap32(i);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
unlock_user_struct(target_ldt_info, ptr, 1);
|
|
|
|
if (ldt_info.entry_number < TARGET_GDT_ENTRY_TLS_MIN ||
|
|
ldt_info.entry_number > TARGET_GDT_ENTRY_TLS_MAX)
|
|
return -TARGET_EINVAL;
|
|
seg_32bit = ldt_info.flags & 1;
|
|
contents = (ldt_info.flags >> 1) & 3;
|
|
read_exec_only = (ldt_info.flags >> 3) & 1;
|
|
limit_in_pages = (ldt_info.flags >> 4) & 1;
|
|
seg_not_present = (ldt_info.flags >> 5) & 1;
|
|
useable = (ldt_info.flags >> 6) & 1;
|
|
#ifdef TARGET_ABI32
|
|
lm = 0;
|
|
#else
|
|
lm = (ldt_info.flags >> 7) & 1;
|
|
#endif
|
|
|
|
if (contents == 3) {
|
|
if (seg_not_present == 0)
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
/* NOTE: same code as Linux kernel */
|
|
/* Allow LDTs to be cleared by the user. */
|
|
if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
|
|
if ((contents == 0 &&
|
|
read_exec_only == 1 &&
|
|
seg_32bit == 0 &&
|
|
limit_in_pages == 0 &&
|
|
seg_not_present == 1 &&
|
|
useable == 0 )) {
|
|
entry_1 = 0;
|
|
entry_2 = 0;
|
|
goto install;
|
|
}
|
|
}
|
|
|
|
entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
|
|
(ldt_info.limit & 0x0ffff);
|
|
entry_2 = (ldt_info.base_addr & 0xff000000) |
|
|
((ldt_info.base_addr & 0x00ff0000) >> 16) |
|
|
(ldt_info.limit & 0xf0000) |
|
|
((read_exec_only ^ 1) << 9) |
|
|
(contents << 10) |
|
|
((seg_not_present ^ 1) << 15) |
|
|
(seg_32bit << 22) |
|
|
(limit_in_pages << 23) |
|
|
(useable << 20) |
|
|
(lm << 21) |
|
|
0x7000;
|
|
|
|
/* Install the new entry ... */
|
|
install:
|
|
lp = (uint32_t *)(gdt_table + ldt_info.entry_number);
|
|
lp[0] = tswap32(entry_1);
|
|
lp[1] = tswap32(entry_2);
|
|
return 0;
|
|
}
|
|
|
|
static abi_long do_get_thread_area(CPUX86State *env, abi_ulong ptr)
|
|
{
|
|
struct target_modify_ldt_ldt_s *target_ldt_info;
|
|
uint64_t *gdt_table = g2h_untagged(env->gdt.base);
|
|
uint32_t base_addr, limit, flags;
|
|
int seg_32bit, contents, read_exec_only, limit_in_pages, idx;
|
|
int seg_not_present, useable, lm;
|
|
uint32_t *lp, entry_1, entry_2;
|
|
|
|
lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
|
|
if (!target_ldt_info)
|
|
return -TARGET_EFAULT;
|
|
idx = tswap32(target_ldt_info->entry_number);
|
|
if (idx < TARGET_GDT_ENTRY_TLS_MIN ||
|
|
idx > TARGET_GDT_ENTRY_TLS_MAX) {
|
|
unlock_user_struct(target_ldt_info, ptr, 1);
|
|
return -TARGET_EINVAL;
|
|
}
|
|
lp = (uint32_t *)(gdt_table + idx);
|
|
entry_1 = tswap32(lp[0]);
|
|
entry_2 = tswap32(lp[1]);
|
|
|
|
read_exec_only = ((entry_2 >> 9) & 1) ^ 1;
|
|
contents = (entry_2 >> 10) & 3;
|
|
seg_not_present = ((entry_2 >> 15) & 1) ^ 1;
|
|
seg_32bit = (entry_2 >> 22) & 1;
|
|
limit_in_pages = (entry_2 >> 23) & 1;
|
|
useable = (entry_2 >> 20) & 1;
|
|
#ifdef TARGET_ABI32
|
|
lm = 0;
|
|
#else
|
|
lm = (entry_2 >> 21) & 1;
|
|
#endif
|
|
flags = (seg_32bit << 0) | (contents << 1) |
|
|
(read_exec_only << 3) | (limit_in_pages << 4) |
|
|
(seg_not_present << 5) | (useable << 6) | (lm << 7);
|
|
limit = (entry_1 & 0xffff) | (entry_2 & 0xf0000);
|
|
base_addr = (entry_1 >> 16) |
|
|
(entry_2 & 0xff000000) |
|
|
((entry_2 & 0xff) << 16);
|
|
target_ldt_info->base_addr = tswapal(base_addr);
|
|
target_ldt_info->limit = tswap32(limit);
|
|
target_ldt_info->flags = tswap32(flags);
|
|
unlock_user_struct(target_ldt_info, ptr, 1);
|
|
return 0;
|
|
}
|
|
|
|
abi_long do_arch_prctl(CPUX86State *env, int code, abi_ulong addr)
|
|
{
|
|
return -TARGET_ENOSYS;
|
|
}
|
|
#else
|
|
abi_long do_arch_prctl(CPUX86State *env, int code, abi_ulong addr)
|
|
{
|
|
abi_long ret = 0;
|
|
abi_ulong val;
|
|
int idx;
|
|
|
|
switch(code) {
|
|
case TARGET_ARCH_SET_GS:
|
|
case TARGET_ARCH_SET_FS:
|
|
if (code == TARGET_ARCH_SET_GS)
|
|
idx = R_GS;
|
|
else
|
|
idx = R_FS;
|
|
cpu_x86_load_seg(env, idx, 0);
|
|
env->segs[idx].base = addr;
|
|
break;
|
|
case TARGET_ARCH_GET_GS:
|
|
case TARGET_ARCH_GET_FS:
|
|
if (code == TARGET_ARCH_GET_GS)
|
|
idx = R_GS;
|
|
else
|
|
idx = R_FS;
|
|
val = env->segs[idx].base;
|
|
if (put_user(val, addr, abi_ulong))
|
|
ret = -TARGET_EFAULT;
|
|
break;
|
|
default:
|
|
ret = -TARGET_EINVAL;
|
|
break;
|
|
}
|
|
return ret;
|
|
}
|
|
#endif /* defined(TARGET_ABI32 */
|
|
#endif /* defined(TARGET_I386) */
|
|
|
|
/*
|
|
* These constants are generic. Supply any that are missing from the host.
|
|
*/
|
|
#ifndef PR_SET_NAME
|
|
# define PR_SET_NAME 15
|
|
# define PR_GET_NAME 16
|
|
#endif
|
|
#ifndef PR_SET_FP_MODE
|
|
# define PR_SET_FP_MODE 45
|
|
# define PR_GET_FP_MODE 46
|
|
# define PR_FP_MODE_FR (1 << 0)
|
|
# define PR_FP_MODE_FRE (1 << 1)
|
|
#endif
|
|
#ifndef PR_SVE_SET_VL
|
|
# define PR_SVE_SET_VL 50
|
|
# define PR_SVE_GET_VL 51
|
|
# define PR_SVE_VL_LEN_MASK 0xffff
|
|
# define PR_SVE_VL_INHERIT (1 << 17)
|
|
#endif
|
|
#ifndef PR_PAC_RESET_KEYS
|
|
# define PR_PAC_RESET_KEYS 54
|
|
# define PR_PAC_APIAKEY (1 << 0)
|
|
# define PR_PAC_APIBKEY (1 << 1)
|
|
# define PR_PAC_APDAKEY (1 << 2)
|
|
# define PR_PAC_APDBKEY (1 << 3)
|
|
# define PR_PAC_APGAKEY (1 << 4)
|
|
#endif
|
|
#ifndef PR_SET_TAGGED_ADDR_CTRL
|
|
# define PR_SET_TAGGED_ADDR_CTRL 55
|
|
# define PR_GET_TAGGED_ADDR_CTRL 56
|
|
# define PR_TAGGED_ADDR_ENABLE (1UL << 0)
|
|
#endif
|
|
#ifndef PR_MTE_TCF_SHIFT
|
|
# define PR_MTE_TCF_SHIFT 1
|
|
# define PR_MTE_TCF_NONE (0UL << PR_MTE_TCF_SHIFT)
|
|
# define PR_MTE_TCF_SYNC (1UL << PR_MTE_TCF_SHIFT)
|
|
# define PR_MTE_TCF_ASYNC (2UL << PR_MTE_TCF_SHIFT)
|
|
# define PR_MTE_TCF_MASK (3UL << PR_MTE_TCF_SHIFT)
|
|
# define PR_MTE_TAG_SHIFT 3
|
|
# define PR_MTE_TAG_MASK (0xffffUL << PR_MTE_TAG_SHIFT)
|
|
#endif
|
|
#ifndef PR_SET_IO_FLUSHER
|
|
# define PR_SET_IO_FLUSHER 57
|
|
# define PR_GET_IO_FLUSHER 58
|
|
#endif
|
|
#ifndef PR_SET_SYSCALL_USER_DISPATCH
|
|
# define PR_SET_SYSCALL_USER_DISPATCH 59
|
|
#endif
|
|
#ifndef PR_SME_SET_VL
|
|
# define PR_SME_SET_VL 63
|
|
# define PR_SME_GET_VL 64
|
|
# define PR_SME_VL_LEN_MASK 0xffff
|
|
# define PR_SME_VL_INHERIT (1 << 17)
|
|
#endif
|
|
|
|
#include "target_prctl.h"
|
|
|
|
static abi_long do_prctl_inval0(CPUArchState *env)
|
|
{
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
static abi_long do_prctl_inval1(CPUArchState *env, abi_long arg2)
|
|
{
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
#ifndef do_prctl_get_fp_mode
|
|
#define do_prctl_get_fp_mode do_prctl_inval0
|
|
#endif
|
|
#ifndef do_prctl_set_fp_mode
|
|
#define do_prctl_set_fp_mode do_prctl_inval1
|
|
#endif
|
|
#ifndef do_prctl_sve_get_vl
|
|
#define do_prctl_sve_get_vl do_prctl_inval0
|
|
#endif
|
|
#ifndef do_prctl_sve_set_vl
|
|
#define do_prctl_sve_set_vl do_prctl_inval1
|
|
#endif
|
|
#ifndef do_prctl_reset_keys
|
|
#define do_prctl_reset_keys do_prctl_inval1
|
|
#endif
|
|
#ifndef do_prctl_set_tagged_addr_ctrl
|
|
#define do_prctl_set_tagged_addr_ctrl do_prctl_inval1
|
|
#endif
|
|
#ifndef do_prctl_get_tagged_addr_ctrl
|
|
#define do_prctl_get_tagged_addr_ctrl do_prctl_inval0
|
|
#endif
|
|
#ifndef do_prctl_get_unalign
|
|
#define do_prctl_get_unalign do_prctl_inval1
|
|
#endif
|
|
#ifndef do_prctl_set_unalign
|
|
#define do_prctl_set_unalign do_prctl_inval1
|
|
#endif
|
|
#ifndef do_prctl_sme_get_vl
|
|
#define do_prctl_sme_get_vl do_prctl_inval0
|
|
#endif
|
|
#ifndef do_prctl_sme_set_vl
|
|
#define do_prctl_sme_set_vl do_prctl_inval1
|
|
#endif
|
|
|
|
static abi_long do_prctl(CPUArchState *env, abi_long option, abi_long arg2,
|
|
abi_long arg3, abi_long arg4, abi_long arg5)
|
|
{
|
|
abi_long ret;
|
|
|
|
switch (option) {
|
|
case PR_GET_PDEATHSIG:
|
|
{
|
|
int deathsig;
|
|
ret = get_errno(prctl(PR_GET_PDEATHSIG, &deathsig,
|
|
arg3, arg4, arg5));
|
|
if (!is_error(ret) &&
|
|
put_user_s32(host_to_target_signal(deathsig), arg2)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
return ret;
|
|
}
|
|
case PR_SET_PDEATHSIG:
|
|
return get_errno(prctl(PR_SET_PDEATHSIG, target_to_host_signal(arg2),
|
|
arg3, arg4, arg5));
|
|
case PR_GET_NAME:
|
|
{
|
|
void *name = lock_user(VERIFY_WRITE, arg2, 16, 1);
|
|
if (!name) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = get_errno(prctl(PR_GET_NAME, (uintptr_t)name,
|
|
arg3, arg4, arg5));
|
|
unlock_user(name, arg2, 16);
|
|
return ret;
|
|
}
|
|
case PR_SET_NAME:
|
|
{
|
|
void *name = lock_user(VERIFY_READ, arg2, 16, 1);
|
|
if (!name) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = get_errno(prctl(PR_SET_NAME, (uintptr_t)name,
|
|
arg3, arg4, arg5));
|
|
unlock_user(name, arg2, 0);
|
|
return ret;
|
|
}
|
|
case PR_GET_FP_MODE:
|
|
return do_prctl_get_fp_mode(env);
|
|
case PR_SET_FP_MODE:
|
|
return do_prctl_set_fp_mode(env, arg2);
|
|
case PR_SVE_GET_VL:
|
|
return do_prctl_sve_get_vl(env);
|
|
case PR_SVE_SET_VL:
|
|
return do_prctl_sve_set_vl(env, arg2);
|
|
case PR_SME_GET_VL:
|
|
return do_prctl_sme_get_vl(env);
|
|
case PR_SME_SET_VL:
|
|
return do_prctl_sme_set_vl(env, arg2);
|
|
case PR_PAC_RESET_KEYS:
|
|
if (arg3 || arg4 || arg5) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
return do_prctl_reset_keys(env, arg2);
|
|
case PR_SET_TAGGED_ADDR_CTRL:
|
|
if (arg3 || arg4 || arg5) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
return do_prctl_set_tagged_addr_ctrl(env, arg2);
|
|
case PR_GET_TAGGED_ADDR_CTRL:
|
|
if (arg2 || arg3 || arg4 || arg5) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
return do_prctl_get_tagged_addr_ctrl(env);
|
|
|
|
case PR_GET_UNALIGN:
|
|
return do_prctl_get_unalign(env, arg2);
|
|
case PR_SET_UNALIGN:
|
|
return do_prctl_set_unalign(env, arg2);
|
|
|
|
case PR_CAP_AMBIENT:
|
|
case PR_CAPBSET_READ:
|
|
case PR_CAPBSET_DROP:
|
|
case PR_GET_DUMPABLE:
|
|
case PR_SET_DUMPABLE:
|
|
case PR_GET_KEEPCAPS:
|
|
case PR_SET_KEEPCAPS:
|
|
case PR_GET_SECUREBITS:
|
|
case PR_SET_SECUREBITS:
|
|
case PR_GET_TIMING:
|
|
case PR_SET_TIMING:
|
|
case PR_GET_TIMERSLACK:
|
|
case PR_SET_TIMERSLACK:
|
|
case PR_MCE_KILL:
|
|
case PR_MCE_KILL_GET:
|
|
case PR_GET_NO_NEW_PRIVS:
|
|
case PR_SET_NO_NEW_PRIVS:
|
|
case PR_GET_IO_FLUSHER:
|
|
case PR_SET_IO_FLUSHER:
|
|
/* Some prctl options have no pointer arguments and we can pass on. */
|
|
return get_errno(prctl(option, arg2, arg3, arg4, arg5));
|
|
|
|
case PR_GET_CHILD_SUBREAPER:
|
|
case PR_SET_CHILD_SUBREAPER:
|
|
case PR_GET_SPECULATION_CTRL:
|
|
case PR_SET_SPECULATION_CTRL:
|
|
case PR_GET_TID_ADDRESS:
|
|
/* TODO */
|
|
return -TARGET_EINVAL;
|
|
|
|
case PR_GET_FPEXC:
|
|
case PR_SET_FPEXC:
|
|
/* Was used for SPE on PowerPC. */
|
|
return -TARGET_EINVAL;
|
|
|
|
case PR_GET_ENDIAN:
|
|
case PR_SET_ENDIAN:
|
|
case PR_GET_FPEMU:
|
|
case PR_SET_FPEMU:
|
|
case PR_SET_MM:
|
|
case PR_GET_SECCOMP:
|
|
case PR_SET_SECCOMP:
|
|
case PR_SET_SYSCALL_USER_DISPATCH:
|
|
case PR_GET_THP_DISABLE:
|
|
case PR_SET_THP_DISABLE:
|
|
case PR_GET_TSC:
|
|
case PR_SET_TSC:
|
|
/* Disable to prevent the target disabling stuff we need. */
|
|
return -TARGET_EINVAL;
|
|
|
|
default:
|
|
qemu_log_mask(LOG_UNIMP, "Unsupported prctl: " TARGET_ABI_FMT_ld "\n",
|
|
option);
|
|
return -TARGET_EINVAL;
|
|
}
|
|
}
|
|
|
|
#define NEW_STACK_SIZE 0x40000
|
|
|
|
|
|
static pthread_mutex_t clone_lock = PTHREAD_MUTEX_INITIALIZER;
|
|
typedef struct {
|
|
CPUArchState *env;
|
|
pthread_mutex_t mutex;
|
|
pthread_cond_t cond;
|
|
pthread_t thread;
|
|
uint32_t tid;
|
|
abi_ulong child_tidptr;
|
|
abi_ulong parent_tidptr;
|
|
sigset_t sigmask;
|
|
} new_thread_info;
|
|
|
|
static void *clone_func(void *arg)
|
|
{
|
|
new_thread_info *info = arg;
|
|
CPUArchState *env;
|
|
CPUState *cpu;
|
|
TaskState *ts;
|
|
|
|
rcu_register_thread();
|
|
tcg_register_thread();
|
|
env = info->env;
|
|
cpu = env_cpu(env);
|
|
thread_cpu = cpu;
|
|
ts = (TaskState *)cpu->opaque;
|
|
info->tid = sys_gettid();
|
|
task_settid(ts);
|
|
if (info->child_tidptr)
|
|
put_user_u32(info->tid, info->child_tidptr);
|
|
if (info->parent_tidptr)
|
|
put_user_u32(info->tid, info->parent_tidptr);
|
|
qemu_guest_random_seed_thread_part2(cpu->random_seed);
|
|
/* Enable signals. */
|
|
sigprocmask(SIG_SETMASK, &info->sigmask, NULL);
|
|
/* Signal to the parent that we're ready. */
|
|
pthread_mutex_lock(&info->mutex);
|
|
pthread_cond_broadcast(&info->cond);
|
|
pthread_mutex_unlock(&info->mutex);
|
|
/* Wait until the parent has finished initializing the tls state. */
|
|
pthread_mutex_lock(&clone_lock);
|
|
pthread_mutex_unlock(&clone_lock);
|
|
cpu_loop(env);
|
|
/* never exits */
|
|
return NULL;
|
|
}
|
|
|
|
/* do_fork() Must return host values and target errnos (unlike most
|
|
do_*() functions). */
|
|
static int do_fork(CPUArchState *env, unsigned int flags, abi_ulong newsp,
|
|
abi_ulong parent_tidptr, target_ulong newtls,
|
|
abi_ulong child_tidptr)
|
|
{
|
|
CPUState *cpu = env_cpu(env);
|
|
int ret;
|
|
TaskState *ts;
|
|
CPUState *new_cpu;
|
|
CPUArchState *new_env;
|
|
sigset_t sigmask;
|
|
|
|
flags &= ~CLONE_IGNORED_FLAGS;
|
|
|
|
/* Emulate vfork() with fork() */
|
|
if (flags & CLONE_VFORK)
|
|
flags &= ~(CLONE_VFORK | CLONE_VM);
|
|
|
|
if (flags & CLONE_VM) {
|
|
TaskState *parent_ts = (TaskState *)cpu->opaque;
|
|
new_thread_info info;
|
|
pthread_attr_t attr;
|
|
|
|
if (((flags & CLONE_THREAD_FLAGS) != CLONE_THREAD_FLAGS) ||
|
|
(flags & CLONE_INVALID_THREAD_FLAGS)) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
ts = g_new0(TaskState, 1);
|
|
init_task_state(ts);
|
|
|
|
/* Grab a mutex so that thread setup appears atomic. */
|
|
pthread_mutex_lock(&clone_lock);
|
|
|
|
/*
|
|
* If this is our first additional thread, we need to ensure we
|
|
* generate code for parallel execution and flush old translations.
|
|
* Do this now so that the copy gets CF_PARALLEL too.
|
|
*/
|
|
if (!(cpu->tcg_cflags & CF_PARALLEL)) {
|
|
cpu->tcg_cflags |= CF_PARALLEL;
|
|
tb_flush(cpu);
|
|
}
|
|
|
|
/* we create a new CPU instance. */
|
|
new_env = cpu_copy(env);
|
|
/* Init regs that differ from the parent. */
|
|
cpu_clone_regs_child(new_env, newsp, flags);
|
|
cpu_clone_regs_parent(env, flags);
|
|
new_cpu = env_cpu(new_env);
|
|
new_cpu->opaque = ts;
|
|
ts->bprm = parent_ts->bprm;
|
|
ts->info = parent_ts->info;
|
|
ts->signal_mask = parent_ts->signal_mask;
|
|
|
|
if (flags & CLONE_CHILD_CLEARTID) {
|
|
ts->child_tidptr = child_tidptr;
|
|
}
|
|
|
|
if (flags & CLONE_SETTLS) {
|
|
cpu_set_tls (new_env, newtls);
|
|
}
|
|
|
|
memset(&info, 0, sizeof(info));
|
|
pthread_mutex_init(&info.mutex, NULL);
|
|
pthread_mutex_lock(&info.mutex);
|
|
pthread_cond_init(&info.cond, NULL);
|
|
info.env = new_env;
|
|
if (flags & CLONE_CHILD_SETTID) {
|
|
info.child_tidptr = child_tidptr;
|
|
}
|
|
if (flags & CLONE_PARENT_SETTID) {
|
|
info.parent_tidptr = parent_tidptr;
|
|
}
|
|
|
|
ret = pthread_attr_init(&attr);
|
|
ret = pthread_attr_setstacksize(&attr, NEW_STACK_SIZE);
|
|
ret = pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
|
|
/* It is not safe to deliver signals until the child has finished
|
|
initializing, so temporarily block all signals. */
|
|
sigfillset(&sigmask);
|
|
sigprocmask(SIG_BLOCK, &sigmask, &info.sigmask);
|
|
cpu->random_seed = qemu_guest_random_seed_thread_part1();
|
|
|
|
ret = pthread_create(&info.thread, &attr, clone_func, &info);
|
|
/* TODO: Free new CPU state if thread creation failed. */
|
|
|
|
sigprocmask(SIG_SETMASK, &info.sigmask, NULL);
|
|
pthread_attr_destroy(&attr);
|
|
if (ret == 0) {
|
|
/* Wait for the child to initialize. */
|
|
pthread_cond_wait(&info.cond, &info.mutex);
|
|
ret = info.tid;
|
|
} else {
|
|
ret = -1;
|
|
}
|
|
pthread_mutex_unlock(&info.mutex);
|
|
pthread_cond_destroy(&info.cond);
|
|
pthread_mutex_destroy(&info.mutex);
|
|
pthread_mutex_unlock(&clone_lock);
|
|
} else {
|
|
/* if no CLONE_VM, we consider it is a fork */
|
|
if (flags & CLONE_INVALID_FORK_FLAGS) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
/* We can't support custom termination signals */
|
|
if ((flags & CSIGNAL) != TARGET_SIGCHLD) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
if (block_signals()) {
|
|
return -QEMU_ERESTARTSYS;
|
|
}
|
|
|
|
fork_start();
|
|
ret = fork();
|
|
if (ret == 0) {
|
|
/* Child Process. */
|
|
cpu_clone_regs_child(env, newsp, flags);
|
|
fork_end(1);
|
|
/* There is a race condition here. The parent process could
|
|
theoretically read the TID in the child process before the child
|
|
tid is set. This would require using either ptrace
|
|
(not implemented) or having *_tidptr to point at a shared memory
|
|
mapping. We can't repeat the spinlock hack used above because
|
|
the child process gets its own copy of the lock. */
|
|
if (flags & CLONE_CHILD_SETTID)
|
|
put_user_u32(sys_gettid(), child_tidptr);
|
|
if (flags & CLONE_PARENT_SETTID)
|
|
put_user_u32(sys_gettid(), parent_tidptr);
|
|
ts = (TaskState *)cpu->opaque;
|
|
if (flags & CLONE_SETTLS)
|
|
cpu_set_tls (env, newtls);
|
|
if (flags & CLONE_CHILD_CLEARTID)
|
|
ts->child_tidptr = child_tidptr;
|
|
} else {
|
|
cpu_clone_regs_parent(env, flags);
|
|
fork_end(0);
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/* warning : doesn't handle linux specific flags... */
|
|
static int target_to_host_fcntl_cmd(int cmd)
|
|
{
|
|
int ret;
|
|
|
|
switch(cmd) {
|
|
case TARGET_F_DUPFD:
|
|
case TARGET_F_GETFD:
|
|
case TARGET_F_SETFD:
|
|
case TARGET_F_GETFL:
|
|
case TARGET_F_SETFL:
|
|
case TARGET_F_OFD_GETLK:
|
|
case TARGET_F_OFD_SETLK:
|
|
case TARGET_F_OFD_SETLKW:
|
|
ret = cmd;
|
|
break;
|
|
case TARGET_F_GETLK:
|
|
ret = F_GETLK64;
|
|
break;
|
|
case TARGET_F_SETLK:
|
|
ret = F_SETLK64;
|
|
break;
|
|
case TARGET_F_SETLKW:
|
|
ret = F_SETLKW64;
|
|
break;
|
|
case TARGET_F_GETOWN:
|
|
ret = F_GETOWN;
|
|
break;
|
|
case TARGET_F_SETOWN:
|
|
ret = F_SETOWN;
|
|
break;
|
|
case TARGET_F_GETSIG:
|
|
ret = F_GETSIG;
|
|
break;
|
|
case TARGET_F_SETSIG:
|
|
ret = F_SETSIG;
|
|
break;
|
|
#if TARGET_ABI_BITS == 32
|
|
case TARGET_F_GETLK64:
|
|
ret = F_GETLK64;
|
|
break;
|
|
case TARGET_F_SETLK64:
|
|
ret = F_SETLK64;
|
|
break;
|
|
case TARGET_F_SETLKW64:
|
|
ret = F_SETLKW64;
|
|
break;
|
|
#endif
|
|
case TARGET_F_SETLEASE:
|
|
ret = F_SETLEASE;
|
|
break;
|
|
case TARGET_F_GETLEASE:
|
|
ret = F_GETLEASE;
|
|
break;
|
|
#ifdef F_DUPFD_CLOEXEC
|
|
case TARGET_F_DUPFD_CLOEXEC:
|
|
ret = F_DUPFD_CLOEXEC;
|
|
break;
|
|
#endif
|
|
case TARGET_F_NOTIFY:
|
|
ret = F_NOTIFY;
|
|
break;
|
|
#ifdef F_GETOWN_EX
|
|
case TARGET_F_GETOWN_EX:
|
|
ret = F_GETOWN_EX;
|
|
break;
|
|
#endif
|
|
#ifdef F_SETOWN_EX
|
|
case TARGET_F_SETOWN_EX:
|
|
ret = F_SETOWN_EX;
|
|
break;
|
|
#endif
|
|
#ifdef F_SETPIPE_SZ
|
|
case TARGET_F_SETPIPE_SZ:
|
|
ret = F_SETPIPE_SZ;
|
|
break;
|
|
case TARGET_F_GETPIPE_SZ:
|
|
ret = F_GETPIPE_SZ;
|
|
break;
|
|
#endif
|
|
#ifdef F_ADD_SEALS
|
|
case TARGET_F_ADD_SEALS:
|
|
ret = F_ADD_SEALS;
|
|
break;
|
|
case TARGET_F_GET_SEALS:
|
|
ret = F_GET_SEALS;
|
|
break;
|
|
#endif
|
|
default:
|
|
ret = -TARGET_EINVAL;
|
|
break;
|
|
}
|
|
|
|
#if defined(__powerpc64__)
|
|
/* On PPC64, glibc headers has the F_*LK* defined to 12, 13 and 14 and
|
|
* is not supported by kernel. The glibc fcntl call actually adjusts
|
|
* them to 5, 6 and 7 before making the syscall(). Since we make the
|
|
* syscall directly, adjust to what is supported by the kernel.
|
|
*/
|
|
if (ret >= F_GETLK64 && ret <= F_SETLKW64) {
|
|
ret -= F_GETLK64 - 5;
|
|
}
|
|
#endif
|
|
|
|
return ret;
|
|
}
|
|
|
|
#define FLOCK_TRANSTBL \
|
|
switch (type) { \
|
|
TRANSTBL_CONVERT(F_RDLCK); \
|
|
TRANSTBL_CONVERT(F_WRLCK); \
|
|
TRANSTBL_CONVERT(F_UNLCK); \
|
|
}
|
|
|
|
static int target_to_host_flock(int type)
|
|
{
|
|
#define TRANSTBL_CONVERT(a) case TARGET_##a: return a
|
|
FLOCK_TRANSTBL
|
|
#undef TRANSTBL_CONVERT
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
static int host_to_target_flock(int type)
|
|
{
|
|
#define TRANSTBL_CONVERT(a) case a: return TARGET_##a
|
|
FLOCK_TRANSTBL
|
|
#undef TRANSTBL_CONVERT
|
|
/* if we don't know how to convert the value coming
|
|
* from the host we copy to the target field as-is
|
|
*/
|
|
return type;
|
|
}
|
|
|
|
static inline abi_long copy_from_user_flock(struct flock64 *fl,
|
|
abi_ulong target_flock_addr)
|
|
{
|
|
struct target_flock *target_fl;
|
|
int l_type;
|
|
|
|
if (!lock_user_struct(VERIFY_READ, target_fl, target_flock_addr, 1)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
__get_user(l_type, &target_fl->l_type);
|
|
l_type = target_to_host_flock(l_type);
|
|
if (l_type < 0) {
|
|
return l_type;
|
|
}
|
|
fl->l_type = l_type;
|
|
__get_user(fl->l_whence, &target_fl->l_whence);
|
|
__get_user(fl->l_start, &target_fl->l_start);
|
|
__get_user(fl->l_len, &target_fl->l_len);
|
|
__get_user(fl->l_pid, &target_fl->l_pid);
|
|
unlock_user_struct(target_fl, target_flock_addr, 0);
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long copy_to_user_flock(abi_ulong target_flock_addr,
|
|
const struct flock64 *fl)
|
|
{
|
|
struct target_flock *target_fl;
|
|
short l_type;
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, target_fl, target_flock_addr, 0)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
l_type = host_to_target_flock(fl->l_type);
|
|
__put_user(l_type, &target_fl->l_type);
|
|
__put_user(fl->l_whence, &target_fl->l_whence);
|
|
__put_user(fl->l_start, &target_fl->l_start);
|
|
__put_user(fl->l_len, &target_fl->l_len);
|
|
__put_user(fl->l_pid, &target_fl->l_pid);
|
|
unlock_user_struct(target_fl, target_flock_addr, 1);
|
|
return 0;
|
|
}
|
|
|
|
typedef abi_long from_flock64_fn(struct flock64 *fl, abi_ulong target_addr);
|
|
typedef abi_long to_flock64_fn(abi_ulong target_addr, const struct flock64 *fl);
|
|
|
|
#if defined(TARGET_ARM) && TARGET_ABI_BITS == 32
|
|
struct target_oabi_flock64 {
|
|
abi_short l_type;
|
|
abi_short l_whence;
|
|
abi_llong l_start;
|
|
abi_llong l_len;
|
|
abi_int l_pid;
|
|
} QEMU_PACKED;
|
|
|
|
static inline abi_long copy_from_user_oabi_flock64(struct flock64 *fl,
|
|
abi_ulong target_flock_addr)
|
|
{
|
|
struct target_oabi_flock64 *target_fl;
|
|
int l_type;
|
|
|
|
if (!lock_user_struct(VERIFY_READ, target_fl, target_flock_addr, 1)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
__get_user(l_type, &target_fl->l_type);
|
|
l_type = target_to_host_flock(l_type);
|
|
if (l_type < 0) {
|
|
return l_type;
|
|
}
|
|
fl->l_type = l_type;
|
|
__get_user(fl->l_whence, &target_fl->l_whence);
|
|
__get_user(fl->l_start, &target_fl->l_start);
|
|
__get_user(fl->l_len, &target_fl->l_len);
|
|
__get_user(fl->l_pid, &target_fl->l_pid);
|
|
unlock_user_struct(target_fl, target_flock_addr, 0);
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long copy_to_user_oabi_flock64(abi_ulong target_flock_addr,
|
|
const struct flock64 *fl)
|
|
{
|
|
struct target_oabi_flock64 *target_fl;
|
|
short l_type;
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, target_fl, target_flock_addr, 0)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
l_type = host_to_target_flock(fl->l_type);
|
|
__put_user(l_type, &target_fl->l_type);
|
|
__put_user(fl->l_whence, &target_fl->l_whence);
|
|
__put_user(fl->l_start, &target_fl->l_start);
|
|
__put_user(fl->l_len, &target_fl->l_len);
|
|
__put_user(fl->l_pid, &target_fl->l_pid);
|
|
unlock_user_struct(target_fl, target_flock_addr, 1);
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static inline abi_long copy_from_user_flock64(struct flock64 *fl,
|
|
abi_ulong target_flock_addr)
|
|
{
|
|
struct target_flock64 *target_fl;
|
|
int l_type;
|
|
|
|
if (!lock_user_struct(VERIFY_READ, target_fl, target_flock_addr, 1)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
__get_user(l_type, &target_fl->l_type);
|
|
l_type = target_to_host_flock(l_type);
|
|
if (l_type < 0) {
|
|
return l_type;
|
|
}
|
|
fl->l_type = l_type;
|
|
__get_user(fl->l_whence, &target_fl->l_whence);
|
|
__get_user(fl->l_start, &target_fl->l_start);
|
|
__get_user(fl->l_len, &target_fl->l_len);
|
|
__get_user(fl->l_pid, &target_fl->l_pid);
|
|
unlock_user_struct(target_fl, target_flock_addr, 0);
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long copy_to_user_flock64(abi_ulong target_flock_addr,
|
|
const struct flock64 *fl)
|
|
{
|
|
struct target_flock64 *target_fl;
|
|
short l_type;
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, target_fl, target_flock_addr, 0)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
l_type = host_to_target_flock(fl->l_type);
|
|
__put_user(l_type, &target_fl->l_type);
|
|
__put_user(fl->l_whence, &target_fl->l_whence);
|
|
__put_user(fl->l_start, &target_fl->l_start);
|
|
__put_user(fl->l_len, &target_fl->l_len);
|
|
__put_user(fl->l_pid, &target_fl->l_pid);
|
|
unlock_user_struct(target_fl, target_flock_addr, 1);
|
|
return 0;
|
|
}
|
|
|
|
static abi_long do_fcntl(int fd, int cmd, abi_ulong arg)
|
|
{
|
|
struct flock64 fl64;
|
|
#ifdef F_GETOWN_EX
|
|
struct f_owner_ex fox;
|
|
struct target_f_owner_ex *target_fox;
|
|
#endif
|
|
abi_long ret;
|
|
int host_cmd = target_to_host_fcntl_cmd(cmd);
|
|
|
|
if (host_cmd == -TARGET_EINVAL)
|
|
return host_cmd;
|
|
|
|
switch(cmd) {
|
|
case TARGET_F_GETLK:
|
|
ret = copy_from_user_flock(&fl64, arg);
|
|
if (ret) {
|
|
return ret;
|
|
}
|
|
ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
|
|
if (ret == 0) {
|
|
ret = copy_to_user_flock(arg, &fl64);
|
|
}
|
|
break;
|
|
|
|
case TARGET_F_SETLK:
|
|
case TARGET_F_SETLKW:
|
|
ret = copy_from_user_flock(&fl64, arg);
|
|
if (ret) {
|
|
return ret;
|
|
}
|
|
ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
|
|
break;
|
|
|
|
case TARGET_F_GETLK64:
|
|
case TARGET_F_OFD_GETLK:
|
|
ret = copy_from_user_flock64(&fl64, arg);
|
|
if (ret) {
|
|
return ret;
|
|
}
|
|
ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
|
|
if (ret == 0) {
|
|
ret = copy_to_user_flock64(arg, &fl64);
|
|
}
|
|
break;
|
|
case TARGET_F_SETLK64:
|
|
case TARGET_F_SETLKW64:
|
|
case TARGET_F_OFD_SETLK:
|
|
case TARGET_F_OFD_SETLKW:
|
|
ret = copy_from_user_flock64(&fl64, arg);
|
|
if (ret) {
|
|
return ret;
|
|
}
|
|
ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
|
|
break;
|
|
|
|
case TARGET_F_GETFL:
|
|
ret = get_errno(safe_fcntl(fd, host_cmd, arg));
|
|
if (ret >= 0) {
|
|
ret = host_to_target_bitmask(ret, fcntl_flags_tbl);
|
|
}
|
|
break;
|
|
|
|
case TARGET_F_SETFL:
|
|
ret = get_errno(safe_fcntl(fd, host_cmd,
|
|
target_to_host_bitmask(arg,
|
|
fcntl_flags_tbl)));
|
|
break;
|
|
|
|
#ifdef F_GETOWN_EX
|
|
case TARGET_F_GETOWN_EX:
|
|
ret = get_errno(safe_fcntl(fd, host_cmd, &fox));
|
|
if (ret >= 0) {
|
|
if (!lock_user_struct(VERIFY_WRITE, target_fox, arg, 0))
|
|
return -TARGET_EFAULT;
|
|
target_fox->type = tswap32(fox.type);
|
|
target_fox->pid = tswap32(fox.pid);
|
|
unlock_user_struct(target_fox, arg, 1);
|
|
}
|
|
break;
|
|
#endif
|
|
|
|
#ifdef F_SETOWN_EX
|
|
case TARGET_F_SETOWN_EX:
|
|
if (!lock_user_struct(VERIFY_READ, target_fox, arg, 1))
|
|
return -TARGET_EFAULT;
|
|
fox.type = tswap32(target_fox->type);
|
|
fox.pid = tswap32(target_fox->pid);
|
|
unlock_user_struct(target_fox, arg, 0);
|
|
ret = get_errno(safe_fcntl(fd, host_cmd, &fox));
|
|
break;
|
|
#endif
|
|
|
|
case TARGET_F_SETSIG:
|
|
ret = get_errno(safe_fcntl(fd, host_cmd, target_to_host_signal(arg)));
|
|
break;
|
|
|
|
case TARGET_F_GETSIG:
|
|
ret = host_to_target_signal(get_errno(safe_fcntl(fd, host_cmd, arg)));
|
|
break;
|
|
|
|
case TARGET_F_SETOWN:
|
|
case TARGET_F_GETOWN:
|
|
case TARGET_F_SETLEASE:
|
|
case TARGET_F_GETLEASE:
|
|
case TARGET_F_SETPIPE_SZ:
|
|
case TARGET_F_GETPIPE_SZ:
|
|
case TARGET_F_ADD_SEALS:
|
|
case TARGET_F_GET_SEALS:
|
|
ret = get_errno(safe_fcntl(fd, host_cmd, arg));
|
|
break;
|
|
|
|
default:
|
|
ret = get_errno(safe_fcntl(fd, cmd, arg));
|
|
break;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
#ifdef USE_UID16
|
|
|
|
static inline int high2lowuid(int uid)
|
|
{
|
|
if (uid > 65535)
|
|
return 65534;
|
|
else
|
|
return uid;
|
|
}
|
|
|
|
static inline int high2lowgid(int gid)
|
|
{
|
|
if (gid > 65535)
|
|
return 65534;
|
|
else
|
|
return gid;
|
|
}
|
|
|
|
static inline int low2highuid(int uid)
|
|
{
|
|
if ((int16_t)uid == -1)
|
|
return -1;
|
|
else
|
|
return uid;
|
|
}
|
|
|
|
static inline int low2highgid(int gid)
|
|
{
|
|
if ((int16_t)gid == -1)
|
|
return -1;
|
|
else
|
|
return gid;
|
|
}
|
|
static inline int tswapid(int id)
|
|
{
|
|
return tswap16(id);
|
|
}
|
|
|
|
#define put_user_id(x, gaddr) put_user_u16(x, gaddr)
|
|
|
|
#else /* !USE_UID16 */
|
|
static inline int high2lowuid(int uid)
|
|
{
|
|
return uid;
|
|
}
|
|
static inline int high2lowgid(int gid)
|
|
{
|
|
return gid;
|
|
}
|
|
static inline int low2highuid(int uid)
|
|
{
|
|
return uid;
|
|
}
|
|
static inline int low2highgid(int gid)
|
|
{
|
|
return gid;
|
|
}
|
|
static inline int tswapid(int id)
|
|
{
|
|
return tswap32(id);
|
|
}
|
|
|
|
#define put_user_id(x, gaddr) put_user_u32(x, gaddr)
|
|
|
|
#endif /* USE_UID16 */
|
|
|
|
/* We must do direct syscalls for setting UID/GID, because we want to
|
|
* implement the Linux system call semantics of "change only for this thread",
|
|
* not the libc/POSIX semantics of "change for all threads in process".
|
|
* (See http://ewontfix.com/17/ for more details.)
|
|
* We use the 32-bit version of the syscalls if present; if it is not
|
|
* then either the host architecture supports 32-bit UIDs natively with
|
|
* the standard syscall, or the 16-bit UID is the best we can do.
|
|
*/
|
|
#ifdef __NR_setuid32
|
|
#define __NR_sys_setuid __NR_setuid32
|
|
#else
|
|
#define __NR_sys_setuid __NR_setuid
|
|
#endif
|
|
#ifdef __NR_setgid32
|
|
#define __NR_sys_setgid __NR_setgid32
|
|
#else
|
|
#define __NR_sys_setgid __NR_setgid
|
|
#endif
|
|
#ifdef __NR_setresuid32
|
|
#define __NR_sys_setresuid __NR_setresuid32
|
|
#else
|
|
#define __NR_sys_setresuid __NR_setresuid
|
|
#endif
|
|
#ifdef __NR_setresgid32
|
|
#define __NR_sys_setresgid __NR_setresgid32
|
|
#else
|
|
#define __NR_sys_setresgid __NR_setresgid
|
|
#endif
|
|
|
|
_syscall1(int, sys_setuid, uid_t, uid)
|
|
_syscall1(int, sys_setgid, gid_t, gid)
|
|
_syscall3(int, sys_setresuid, uid_t, ruid, uid_t, euid, uid_t, suid)
|
|
_syscall3(int, sys_setresgid, gid_t, rgid, gid_t, egid, gid_t, sgid)
|
|
|
|
void syscall_init(void)
|
|
{
|
|
IOCTLEntry *ie;
|
|
const argtype *arg_type;
|
|
int size;
|
|
|
|
thunk_init(STRUCT_MAX);
|
|
|
|
#define STRUCT(name, ...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def);
|
|
#define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def);
|
|
#include "syscall_types.h"
|
|
#undef STRUCT
|
|
#undef STRUCT_SPECIAL
|
|
|
|
/* we patch the ioctl size if necessary. We rely on the fact that
|
|
no ioctl has all the bits at '1' in the size field */
|
|
ie = ioctl_entries;
|
|
while (ie->target_cmd != 0) {
|
|
if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) ==
|
|
TARGET_IOC_SIZEMASK) {
|
|
arg_type = ie->arg_type;
|
|
if (arg_type[0] != TYPE_PTR) {
|
|
fprintf(stderr, "cannot patch size for ioctl 0x%x\n",
|
|
ie->target_cmd);
|
|
exit(1);
|
|
}
|
|
arg_type++;
|
|
size = thunk_type_size(arg_type, 0);
|
|
ie->target_cmd = (ie->target_cmd &
|
|
~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) |
|
|
(size << TARGET_IOC_SIZESHIFT);
|
|
}
|
|
|
|
/* automatic consistency check if same arch */
|
|
#if (defined(__i386__) && defined(TARGET_I386) && defined(TARGET_ABI32)) || \
|
|
(defined(__x86_64__) && defined(TARGET_X86_64))
|
|
if (unlikely(ie->target_cmd != ie->host_cmd)) {
|
|
fprintf(stderr, "ERROR: ioctl(%s): target=0x%x host=0x%x\n",
|
|
ie->name, ie->target_cmd, ie->host_cmd);
|
|
}
|
|
#endif
|
|
ie++;
|
|
}
|
|
}
|
|
|
|
#ifdef TARGET_NR_truncate64
|
|
static inline abi_long target_truncate64(CPUArchState *cpu_env, const char *arg1,
|
|
abi_long arg2,
|
|
abi_long arg3,
|
|
abi_long arg4)
|
|
{
|
|
if (regpairs_aligned(cpu_env, TARGET_NR_truncate64)) {
|
|
arg2 = arg3;
|
|
arg3 = arg4;
|
|
}
|
|
return get_errno(truncate64(arg1, target_offset64(arg2, arg3)));
|
|
}
|
|
#endif
|
|
|
|
#ifdef TARGET_NR_ftruncate64
|
|
static inline abi_long target_ftruncate64(CPUArchState *cpu_env, abi_long arg1,
|
|
abi_long arg2,
|
|
abi_long arg3,
|
|
abi_long arg4)
|
|
{
|
|
if (regpairs_aligned(cpu_env, TARGET_NR_ftruncate64)) {
|
|
arg2 = arg3;
|
|
arg3 = arg4;
|
|
}
|
|
return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3)));
|
|
}
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_timer_settime) || \
|
|
(defined(TARGET_NR_timerfd_settime) && defined(CONFIG_TIMERFD))
|
|
static inline abi_long target_to_host_itimerspec(struct itimerspec *host_its,
|
|
abi_ulong target_addr)
|
|
{
|
|
if (target_to_host_timespec(&host_its->it_interval, target_addr +
|
|
offsetof(struct target_itimerspec,
|
|
it_interval)) ||
|
|
target_to_host_timespec(&host_its->it_value, target_addr +
|
|
offsetof(struct target_itimerspec,
|
|
it_value))) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_timer_settime64) || \
|
|
(defined(TARGET_NR_timerfd_settime64) && defined(CONFIG_TIMERFD))
|
|
static inline abi_long target_to_host_itimerspec64(struct itimerspec *host_its,
|
|
abi_ulong target_addr)
|
|
{
|
|
if (target_to_host_timespec64(&host_its->it_interval, target_addr +
|
|
offsetof(struct target__kernel_itimerspec,
|
|
it_interval)) ||
|
|
target_to_host_timespec64(&host_its->it_value, target_addr +
|
|
offsetof(struct target__kernel_itimerspec,
|
|
it_value))) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#if ((defined(TARGET_NR_timerfd_gettime) || \
|
|
defined(TARGET_NR_timerfd_settime)) && defined(CONFIG_TIMERFD)) || \
|
|
defined(TARGET_NR_timer_gettime) || defined(TARGET_NR_timer_settime)
|
|
static inline abi_long host_to_target_itimerspec(abi_ulong target_addr,
|
|
struct itimerspec *host_its)
|
|
{
|
|
if (host_to_target_timespec(target_addr + offsetof(struct target_itimerspec,
|
|
it_interval),
|
|
&host_its->it_interval) ||
|
|
host_to_target_timespec(target_addr + offsetof(struct target_itimerspec,
|
|
it_value),
|
|
&host_its->it_value)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#if ((defined(TARGET_NR_timerfd_gettime64) || \
|
|
defined(TARGET_NR_timerfd_settime64)) && defined(CONFIG_TIMERFD)) || \
|
|
defined(TARGET_NR_timer_gettime64) || defined(TARGET_NR_timer_settime64)
|
|
static inline abi_long host_to_target_itimerspec64(abi_ulong target_addr,
|
|
struct itimerspec *host_its)
|
|
{
|
|
if (host_to_target_timespec64(target_addr +
|
|
offsetof(struct target__kernel_itimerspec,
|
|
it_interval),
|
|
&host_its->it_interval) ||
|
|
host_to_target_timespec64(target_addr +
|
|
offsetof(struct target__kernel_itimerspec,
|
|
it_value),
|
|
&host_its->it_value)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_adjtimex) || \
|
|
(defined(TARGET_NR_clock_adjtime) && defined(CONFIG_CLOCK_ADJTIME))
|
|
static inline abi_long target_to_host_timex(struct timex *host_tx,
|
|
abi_long target_addr)
|
|
{
|
|
struct target_timex *target_tx;
|
|
|
|
if (!lock_user_struct(VERIFY_READ, target_tx, target_addr, 1)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
__get_user(host_tx->modes, &target_tx->modes);
|
|
__get_user(host_tx->offset, &target_tx->offset);
|
|
__get_user(host_tx->freq, &target_tx->freq);
|
|
__get_user(host_tx->maxerror, &target_tx->maxerror);
|
|
__get_user(host_tx->esterror, &target_tx->esterror);
|
|
__get_user(host_tx->status, &target_tx->status);
|
|
__get_user(host_tx->constant, &target_tx->constant);
|
|
__get_user(host_tx->precision, &target_tx->precision);
|
|
__get_user(host_tx->tolerance, &target_tx->tolerance);
|
|
__get_user(host_tx->time.tv_sec, &target_tx->time.tv_sec);
|
|
__get_user(host_tx->time.tv_usec, &target_tx->time.tv_usec);
|
|
__get_user(host_tx->tick, &target_tx->tick);
|
|
__get_user(host_tx->ppsfreq, &target_tx->ppsfreq);
|
|
__get_user(host_tx->jitter, &target_tx->jitter);
|
|
__get_user(host_tx->shift, &target_tx->shift);
|
|
__get_user(host_tx->stabil, &target_tx->stabil);
|
|
__get_user(host_tx->jitcnt, &target_tx->jitcnt);
|
|
__get_user(host_tx->calcnt, &target_tx->calcnt);
|
|
__get_user(host_tx->errcnt, &target_tx->errcnt);
|
|
__get_user(host_tx->stbcnt, &target_tx->stbcnt);
|
|
__get_user(host_tx->tai, &target_tx->tai);
|
|
|
|
unlock_user_struct(target_tx, target_addr, 0);
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long host_to_target_timex(abi_long target_addr,
|
|
struct timex *host_tx)
|
|
{
|
|
struct target_timex *target_tx;
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, target_tx, target_addr, 0)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
__put_user(host_tx->modes, &target_tx->modes);
|
|
__put_user(host_tx->offset, &target_tx->offset);
|
|
__put_user(host_tx->freq, &target_tx->freq);
|
|
__put_user(host_tx->maxerror, &target_tx->maxerror);
|
|
__put_user(host_tx->esterror, &target_tx->esterror);
|
|
__put_user(host_tx->status, &target_tx->status);
|
|
__put_user(host_tx->constant, &target_tx->constant);
|
|
__put_user(host_tx->precision, &target_tx->precision);
|
|
__put_user(host_tx->tolerance, &target_tx->tolerance);
|
|
__put_user(host_tx->time.tv_sec, &target_tx->time.tv_sec);
|
|
__put_user(host_tx->time.tv_usec, &target_tx->time.tv_usec);
|
|
__put_user(host_tx->tick, &target_tx->tick);
|
|
__put_user(host_tx->ppsfreq, &target_tx->ppsfreq);
|
|
__put_user(host_tx->jitter, &target_tx->jitter);
|
|
__put_user(host_tx->shift, &target_tx->shift);
|
|
__put_user(host_tx->stabil, &target_tx->stabil);
|
|
__put_user(host_tx->jitcnt, &target_tx->jitcnt);
|
|
__put_user(host_tx->calcnt, &target_tx->calcnt);
|
|
__put_user(host_tx->errcnt, &target_tx->errcnt);
|
|
__put_user(host_tx->stbcnt, &target_tx->stbcnt);
|
|
__put_user(host_tx->tai, &target_tx->tai);
|
|
|
|
unlock_user_struct(target_tx, target_addr, 1);
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
|
|
#if defined(TARGET_NR_clock_adjtime64) && defined(CONFIG_CLOCK_ADJTIME)
|
|
static inline abi_long target_to_host_timex64(struct timex *host_tx,
|
|
abi_long target_addr)
|
|
{
|
|
struct target__kernel_timex *target_tx;
|
|
|
|
if (copy_from_user_timeval64(&host_tx->time, target_addr +
|
|
offsetof(struct target__kernel_timex,
|
|
time))) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
if (!lock_user_struct(VERIFY_READ, target_tx, target_addr, 1)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
__get_user(host_tx->modes, &target_tx->modes);
|
|
__get_user(host_tx->offset, &target_tx->offset);
|
|
__get_user(host_tx->freq, &target_tx->freq);
|
|
__get_user(host_tx->maxerror, &target_tx->maxerror);
|
|
__get_user(host_tx->esterror, &target_tx->esterror);
|
|
__get_user(host_tx->status, &target_tx->status);
|
|
__get_user(host_tx->constant, &target_tx->constant);
|
|
__get_user(host_tx->precision, &target_tx->precision);
|
|
__get_user(host_tx->tolerance, &target_tx->tolerance);
|
|
__get_user(host_tx->tick, &target_tx->tick);
|
|
__get_user(host_tx->ppsfreq, &target_tx->ppsfreq);
|
|
__get_user(host_tx->jitter, &target_tx->jitter);
|
|
__get_user(host_tx->shift, &target_tx->shift);
|
|
__get_user(host_tx->stabil, &target_tx->stabil);
|
|
__get_user(host_tx->jitcnt, &target_tx->jitcnt);
|
|
__get_user(host_tx->calcnt, &target_tx->calcnt);
|
|
__get_user(host_tx->errcnt, &target_tx->errcnt);
|
|
__get_user(host_tx->stbcnt, &target_tx->stbcnt);
|
|
__get_user(host_tx->tai, &target_tx->tai);
|
|
|
|
unlock_user_struct(target_tx, target_addr, 0);
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long host_to_target_timex64(abi_long target_addr,
|
|
struct timex *host_tx)
|
|
{
|
|
struct target__kernel_timex *target_tx;
|
|
|
|
if (copy_to_user_timeval64(target_addr +
|
|
offsetof(struct target__kernel_timex, time),
|
|
&host_tx->time)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, target_tx, target_addr, 0)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
__put_user(host_tx->modes, &target_tx->modes);
|
|
__put_user(host_tx->offset, &target_tx->offset);
|
|
__put_user(host_tx->freq, &target_tx->freq);
|
|
__put_user(host_tx->maxerror, &target_tx->maxerror);
|
|
__put_user(host_tx->esterror, &target_tx->esterror);
|
|
__put_user(host_tx->status, &target_tx->status);
|
|
__put_user(host_tx->constant, &target_tx->constant);
|
|
__put_user(host_tx->precision, &target_tx->precision);
|
|
__put_user(host_tx->tolerance, &target_tx->tolerance);
|
|
__put_user(host_tx->tick, &target_tx->tick);
|
|
__put_user(host_tx->ppsfreq, &target_tx->ppsfreq);
|
|
__put_user(host_tx->jitter, &target_tx->jitter);
|
|
__put_user(host_tx->shift, &target_tx->shift);
|
|
__put_user(host_tx->stabil, &target_tx->stabil);
|
|
__put_user(host_tx->jitcnt, &target_tx->jitcnt);
|
|
__put_user(host_tx->calcnt, &target_tx->calcnt);
|
|
__put_user(host_tx->errcnt, &target_tx->errcnt);
|
|
__put_user(host_tx->stbcnt, &target_tx->stbcnt);
|
|
__put_user(host_tx->tai, &target_tx->tai);
|
|
|
|
unlock_user_struct(target_tx, target_addr, 1);
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#ifndef HAVE_SIGEV_NOTIFY_THREAD_ID
|
|
#define sigev_notify_thread_id _sigev_un._tid
|
|
#endif
|
|
|
|
static inline abi_long target_to_host_sigevent(struct sigevent *host_sevp,
|
|
abi_ulong target_addr)
|
|
{
|
|
struct target_sigevent *target_sevp;
|
|
|
|
if (!lock_user_struct(VERIFY_READ, target_sevp, target_addr, 1)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
/* This union is awkward on 64 bit systems because it has a 32 bit
|
|
* integer and a pointer in it; we follow the conversion approach
|
|
* used for handling sigval types in signal.c so the guest should get
|
|
* the correct value back even if we did a 64 bit byteswap and it's
|
|
* using the 32 bit integer.
|
|
*/
|
|
host_sevp->sigev_value.sival_ptr =
|
|
(void *)(uintptr_t)tswapal(target_sevp->sigev_value.sival_ptr);
|
|
host_sevp->sigev_signo =
|
|
target_to_host_signal(tswap32(target_sevp->sigev_signo));
|
|
host_sevp->sigev_notify = tswap32(target_sevp->sigev_notify);
|
|
host_sevp->sigev_notify_thread_id = tswap32(target_sevp->_sigev_un._tid);
|
|
|
|
unlock_user_struct(target_sevp, target_addr, 1);
|
|
return 0;
|
|
}
|
|
|
|
#if defined(TARGET_NR_mlockall)
|
|
static inline int target_to_host_mlockall_arg(int arg)
|
|
{
|
|
int result = 0;
|
|
|
|
if (arg & TARGET_MCL_CURRENT) {
|
|
result |= MCL_CURRENT;
|
|
}
|
|
if (arg & TARGET_MCL_FUTURE) {
|
|
result |= MCL_FUTURE;
|
|
}
|
|
#ifdef MCL_ONFAULT
|
|
if (arg & TARGET_MCL_ONFAULT) {
|
|
result |= MCL_ONFAULT;
|
|
}
|
|
#endif
|
|
|
|
return result;
|
|
}
|
|
#endif
|
|
|
|
#if (defined(TARGET_NR_stat64) || defined(TARGET_NR_lstat64) || \
|
|
defined(TARGET_NR_fstat64) || defined(TARGET_NR_fstatat64) || \
|
|
defined(TARGET_NR_newfstatat))
|
|
static inline abi_long host_to_target_stat64(CPUArchState *cpu_env,
|
|
abi_ulong target_addr,
|
|
struct stat *host_st)
|
|
{
|
|
#if defined(TARGET_ARM) && defined(TARGET_ABI32)
|
|
if (cpu_env->eabi) {
|
|
struct target_eabi_stat64 *target_st;
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0))
|
|
return -TARGET_EFAULT;
|
|
memset(target_st, 0, sizeof(struct target_eabi_stat64));
|
|
__put_user(host_st->st_dev, &target_st->st_dev);
|
|
__put_user(host_st->st_ino, &target_st->st_ino);
|
|
#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
|
|
__put_user(host_st->st_ino, &target_st->__st_ino);
|
|
#endif
|
|
__put_user(host_st->st_mode, &target_st->st_mode);
|
|
__put_user(host_st->st_nlink, &target_st->st_nlink);
|
|
__put_user(host_st->st_uid, &target_st->st_uid);
|
|
__put_user(host_st->st_gid, &target_st->st_gid);
|
|
__put_user(host_st->st_rdev, &target_st->st_rdev);
|
|
__put_user(host_st->st_size, &target_st->st_size);
|
|
__put_user(host_st->st_blksize, &target_st->st_blksize);
|
|
__put_user(host_st->st_blocks, &target_st->st_blocks);
|
|
__put_user(host_st->st_atime, &target_st->target_st_atime);
|
|
__put_user(host_st->st_mtime, &target_st->target_st_mtime);
|
|
__put_user(host_st->st_ctime, &target_st->target_st_ctime);
|
|
#ifdef HAVE_STRUCT_STAT_ST_ATIM
|
|
__put_user(host_st->st_atim.tv_nsec, &target_st->target_st_atime_nsec);
|
|
__put_user(host_st->st_mtim.tv_nsec, &target_st->target_st_mtime_nsec);
|
|
__put_user(host_st->st_ctim.tv_nsec, &target_st->target_st_ctime_nsec);
|
|
#endif
|
|
unlock_user_struct(target_st, target_addr, 1);
|
|
} else
|
|
#endif
|
|
{
|
|
#if defined(TARGET_HAS_STRUCT_STAT64)
|
|
struct target_stat64 *target_st;
|
|
#else
|
|
struct target_stat *target_st;
|
|
#endif
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0))
|
|
return -TARGET_EFAULT;
|
|
memset(target_st, 0, sizeof(*target_st));
|
|
__put_user(host_st->st_dev, &target_st->st_dev);
|
|
__put_user(host_st->st_ino, &target_st->st_ino);
|
|
#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
|
|
__put_user(host_st->st_ino, &target_st->__st_ino);
|
|
#endif
|
|
__put_user(host_st->st_mode, &target_st->st_mode);
|
|
__put_user(host_st->st_nlink, &target_st->st_nlink);
|
|
__put_user(host_st->st_uid, &target_st->st_uid);
|
|
__put_user(host_st->st_gid, &target_st->st_gid);
|
|
__put_user(host_st->st_rdev, &target_st->st_rdev);
|
|
/* XXX: better use of kernel struct */
|
|
__put_user(host_st->st_size, &target_st->st_size);
|
|
__put_user(host_st->st_blksize, &target_st->st_blksize);
|
|
__put_user(host_st->st_blocks, &target_st->st_blocks);
|
|
__put_user(host_st->st_atime, &target_st->target_st_atime);
|
|
__put_user(host_st->st_mtime, &target_st->target_st_mtime);
|
|
__put_user(host_st->st_ctime, &target_st->target_st_ctime);
|
|
#ifdef HAVE_STRUCT_STAT_ST_ATIM
|
|
__put_user(host_st->st_atim.tv_nsec, &target_st->target_st_atime_nsec);
|
|
__put_user(host_st->st_mtim.tv_nsec, &target_st->target_st_mtime_nsec);
|
|
__put_user(host_st->st_ctim.tv_nsec, &target_st->target_st_ctime_nsec);
|
|
#endif
|
|
unlock_user_struct(target_st, target_addr, 1);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_statx) && defined(__NR_statx)
|
|
static inline abi_long host_to_target_statx(struct target_statx *host_stx,
|
|
abi_ulong target_addr)
|
|
{
|
|
struct target_statx *target_stx;
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, target_stx, target_addr, 0)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
memset(target_stx, 0, sizeof(*target_stx));
|
|
|
|
__put_user(host_stx->stx_mask, &target_stx->stx_mask);
|
|
__put_user(host_stx->stx_blksize, &target_stx->stx_blksize);
|
|
__put_user(host_stx->stx_attributes, &target_stx->stx_attributes);
|
|
__put_user(host_stx->stx_nlink, &target_stx->stx_nlink);
|
|
__put_user(host_stx->stx_uid, &target_stx->stx_uid);
|
|
__put_user(host_stx->stx_gid, &target_stx->stx_gid);
|
|
__put_user(host_stx->stx_mode, &target_stx->stx_mode);
|
|
__put_user(host_stx->stx_ino, &target_stx->stx_ino);
|
|
__put_user(host_stx->stx_size, &target_stx->stx_size);
|
|
__put_user(host_stx->stx_blocks, &target_stx->stx_blocks);
|
|
__put_user(host_stx->stx_attributes_mask, &target_stx->stx_attributes_mask);
|
|
__put_user(host_stx->stx_atime.tv_sec, &target_stx->stx_atime.tv_sec);
|
|
__put_user(host_stx->stx_atime.tv_nsec, &target_stx->stx_atime.tv_nsec);
|
|
__put_user(host_stx->stx_btime.tv_sec, &target_stx->stx_btime.tv_sec);
|
|
__put_user(host_stx->stx_btime.tv_nsec, &target_stx->stx_btime.tv_nsec);
|
|
__put_user(host_stx->stx_ctime.tv_sec, &target_stx->stx_ctime.tv_sec);
|
|
__put_user(host_stx->stx_ctime.tv_nsec, &target_stx->stx_ctime.tv_nsec);
|
|
__put_user(host_stx->stx_mtime.tv_sec, &target_stx->stx_mtime.tv_sec);
|
|
__put_user(host_stx->stx_mtime.tv_nsec, &target_stx->stx_mtime.tv_nsec);
|
|
__put_user(host_stx->stx_rdev_major, &target_stx->stx_rdev_major);
|
|
__put_user(host_stx->stx_rdev_minor, &target_stx->stx_rdev_minor);
|
|
__put_user(host_stx->stx_dev_major, &target_stx->stx_dev_major);
|
|
__put_user(host_stx->stx_dev_minor, &target_stx->stx_dev_minor);
|
|
|
|
unlock_user_struct(target_stx, target_addr, 1);
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static int do_sys_futex(int *uaddr, int op, int val,
|
|
const struct timespec *timeout, int *uaddr2,
|
|
int val3)
|
|
{
|
|
#if HOST_LONG_BITS == 64
|
|
#if defined(__NR_futex)
|
|
/* always a 64-bit time_t, it doesn't define _time64 version */
|
|
return sys_futex(uaddr, op, val, timeout, uaddr2, val3);
|
|
|
|
#endif
|
|
#else /* HOST_LONG_BITS == 64 */
|
|
#if defined(__NR_futex_time64)
|
|
if (sizeof(timeout->tv_sec) == 8) {
|
|
/* _time64 function on 32bit arch */
|
|
return sys_futex_time64(uaddr, op, val, timeout, uaddr2, val3);
|
|
}
|
|
#endif
|
|
#if defined(__NR_futex)
|
|
/* old function on 32bit arch */
|
|
return sys_futex(uaddr, op, val, timeout, uaddr2, val3);
|
|
#endif
|
|
#endif /* HOST_LONG_BITS == 64 */
|
|
g_assert_not_reached();
|
|
}
|
|
|
|
static int do_safe_futex(int *uaddr, int op, int val,
|
|
const struct timespec *timeout, int *uaddr2,
|
|
int val3)
|
|
{
|
|
#if HOST_LONG_BITS == 64
|
|
#if defined(__NR_futex)
|
|
/* always a 64-bit time_t, it doesn't define _time64 version */
|
|
return get_errno(safe_futex(uaddr, op, val, timeout, uaddr2, val3));
|
|
#endif
|
|
#else /* HOST_LONG_BITS == 64 */
|
|
#if defined(__NR_futex_time64)
|
|
if (sizeof(timeout->tv_sec) == 8) {
|
|
/* _time64 function on 32bit arch */
|
|
return get_errno(safe_futex_time64(uaddr, op, val, timeout, uaddr2,
|
|
val3));
|
|
}
|
|
#endif
|
|
#if defined(__NR_futex)
|
|
/* old function on 32bit arch */
|
|
return get_errno(safe_futex(uaddr, op, val, timeout, uaddr2, val3));
|
|
#endif
|
|
#endif /* HOST_LONG_BITS == 64 */
|
|
return -TARGET_ENOSYS;
|
|
}
|
|
|
|
/* ??? Using host futex calls even when target atomic operations
|
|
are not really atomic probably breaks things. However implementing
|
|
futexes locally would make futexes shared between multiple processes
|
|
tricky. However they're probably useless because guest atomic
|
|
operations won't work either. */
|
|
#if defined(TARGET_NR_futex) || defined(TARGET_NR_futex_time64)
|
|
static int do_futex(CPUState *cpu, bool time64, target_ulong uaddr,
|
|
int op, int val, target_ulong timeout,
|
|
target_ulong uaddr2, int val3)
|
|
{
|
|
struct timespec ts, *pts = NULL;
|
|
void *haddr2 = NULL;
|
|
int base_op;
|
|
|
|
/* We assume FUTEX_* constants are the same on both host and target. */
|
|
#ifdef FUTEX_CMD_MASK
|
|
base_op = op & FUTEX_CMD_MASK;
|
|
#else
|
|
base_op = op;
|
|
#endif
|
|
switch (base_op) {
|
|
case FUTEX_WAIT:
|
|
case FUTEX_WAIT_BITSET:
|
|
val = tswap32(val);
|
|
break;
|
|
case FUTEX_WAIT_REQUEUE_PI:
|
|
val = tswap32(val);
|
|
haddr2 = g2h(cpu, uaddr2);
|
|
break;
|
|
case FUTEX_LOCK_PI:
|
|
case FUTEX_LOCK_PI2:
|
|
break;
|
|
case FUTEX_WAKE:
|
|
case FUTEX_WAKE_BITSET:
|
|
case FUTEX_TRYLOCK_PI:
|
|
case FUTEX_UNLOCK_PI:
|
|
timeout = 0;
|
|
break;
|
|
case FUTEX_FD:
|
|
val = target_to_host_signal(val);
|
|
timeout = 0;
|
|
break;
|
|
case FUTEX_CMP_REQUEUE:
|
|
case FUTEX_CMP_REQUEUE_PI:
|
|
val3 = tswap32(val3);
|
|
/* fall through */
|
|
case FUTEX_REQUEUE:
|
|
case FUTEX_WAKE_OP:
|
|
/*
|
|
* For these, the 4th argument is not TIMEOUT, but VAL2.
|
|
* But the prototype of do_safe_futex takes a pointer, so
|
|
* insert casts to satisfy the compiler. We do not need
|
|
* to tswap VAL2 since it's not compared to guest memory.
|
|
*/
|
|
pts = (struct timespec *)(uintptr_t)timeout;
|
|
timeout = 0;
|
|
haddr2 = g2h(cpu, uaddr2);
|
|
break;
|
|
default:
|
|
return -TARGET_ENOSYS;
|
|
}
|
|
if (timeout) {
|
|
pts = &ts;
|
|
if (time64
|
|
? target_to_host_timespec64(pts, timeout)
|
|
: target_to_host_timespec(pts, timeout)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
return do_safe_futex(g2h(cpu, uaddr), op, val, pts, haddr2, val3);
|
|
}
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_name_to_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
|
|
static abi_long do_name_to_handle_at(abi_long dirfd, abi_long pathname,
|
|
abi_long handle, abi_long mount_id,
|
|
abi_long flags)
|
|
{
|
|
struct file_handle *target_fh;
|
|
struct file_handle *fh;
|
|
int mid = 0;
|
|
abi_long ret;
|
|
char *name;
|
|
unsigned int size, total_size;
|
|
|
|
if (get_user_s32(size, handle)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
name = lock_user_string(pathname);
|
|
if (!name) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
total_size = sizeof(struct file_handle) + size;
|
|
target_fh = lock_user(VERIFY_WRITE, handle, total_size, 0);
|
|
if (!target_fh) {
|
|
unlock_user(name, pathname, 0);
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
fh = g_malloc0(total_size);
|
|
fh->handle_bytes = size;
|
|
|
|
ret = get_errno(name_to_handle_at(dirfd, path(name), fh, &mid, flags));
|
|
unlock_user(name, pathname, 0);
|
|
|
|
/* man name_to_handle_at(2):
|
|
* Other than the use of the handle_bytes field, the caller should treat
|
|
* the file_handle structure as an opaque data type
|
|
*/
|
|
|
|
memcpy(target_fh, fh, total_size);
|
|
target_fh->handle_bytes = tswap32(fh->handle_bytes);
|
|
target_fh->handle_type = tswap32(fh->handle_type);
|
|
g_free(fh);
|
|
unlock_user(target_fh, handle, total_size);
|
|
|
|
if (put_user_s32(mid, mount_id)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
return ret;
|
|
|
|
}
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_open_by_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
|
|
static abi_long do_open_by_handle_at(abi_long mount_fd, abi_long handle,
|
|
abi_long flags)
|
|
{
|
|
struct file_handle *target_fh;
|
|
struct file_handle *fh;
|
|
unsigned int size, total_size;
|
|
abi_long ret;
|
|
|
|
if (get_user_s32(size, handle)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
total_size = sizeof(struct file_handle) + size;
|
|
target_fh = lock_user(VERIFY_READ, handle, total_size, 1);
|
|
if (!target_fh) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
fh = g_memdup(target_fh, total_size);
|
|
fh->handle_bytes = size;
|
|
fh->handle_type = tswap32(target_fh->handle_type);
|
|
|
|
ret = get_errno(open_by_handle_at(mount_fd, fh,
|
|
target_to_host_bitmask(flags, fcntl_flags_tbl)));
|
|
|
|
g_free(fh);
|
|
|
|
unlock_user(target_fh, handle, total_size);
|
|
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_signalfd) || defined(TARGET_NR_signalfd4)
|
|
|
|
static abi_long do_signalfd4(int fd, abi_long mask, int flags)
|
|
{
|
|
int host_flags;
|
|
target_sigset_t *target_mask;
|
|
sigset_t host_mask;
|
|
abi_long ret;
|
|
|
|
if (flags & ~(TARGET_O_NONBLOCK_MASK | TARGET_O_CLOEXEC)) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
if (!lock_user_struct(VERIFY_READ, target_mask, mask, 1)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
target_to_host_sigset(&host_mask, target_mask);
|
|
|
|
host_flags = target_to_host_bitmask(flags, fcntl_flags_tbl);
|
|
|
|
ret = get_errno(signalfd(fd, &host_mask, host_flags));
|
|
if (ret >= 0) {
|
|
fd_trans_register(ret, &target_signalfd_trans);
|
|
}
|
|
|
|
unlock_user_struct(target_mask, mask, 0);
|
|
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
/* Map host to target signal numbers for the wait family of syscalls.
|
|
Assume all other status bits are the same. */
|
|
int host_to_target_waitstatus(int status)
|
|
{
|
|
if (WIFSIGNALED(status)) {
|
|
return host_to_target_signal(WTERMSIG(status)) | (status & ~0x7f);
|
|
}
|
|
if (WIFSTOPPED(status)) {
|
|
return (host_to_target_signal(WSTOPSIG(status)) << 8)
|
|
| (status & 0xff);
|
|
}
|
|
return status;
|
|
}
|
|
|
|
static int open_self_cmdline(CPUArchState *cpu_env, int fd)
|
|
{
|
|
CPUState *cpu = env_cpu(cpu_env);
|
|
struct linux_binprm *bprm = ((TaskState *)cpu->opaque)->bprm;
|
|
int i;
|
|
|
|
for (i = 0; i < bprm->argc; i++) {
|
|
size_t len = strlen(bprm->argv[i]) + 1;
|
|
|
|
if (write(fd, bprm->argv[i], len) != len) {
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int open_self_maps(CPUArchState *cpu_env, int fd)
|
|
{
|
|
CPUState *cpu = env_cpu(cpu_env);
|
|
TaskState *ts = cpu->opaque;
|
|
GSList *map_info = read_self_maps();
|
|
GSList *s;
|
|
int count;
|
|
|
|
for (s = map_info; s; s = g_slist_next(s)) {
|
|
MapInfo *e = (MapInfo *) s->data;
|
|
|
|
if (h2g_valid(e->start)) {
|
|
unsigned long min = e->start;
|
|
unsigned long max = e->end;
|
|
int flags = page_get_flags(h2g(min));
|
|
const char *path;
|
|
|
|
max = h2g_valid(max - 1) ?
|
|
max : (uintptr_t) g2h_untagged(GUEST_ADDR_MAX) + 1;
|
|
|
|
if (page_check_range(h2g(min), max - min, flags) == -1) {
|
|
continue;
|
|
}
|
|
|
|
#ifdef TARGET_HPPA
|
|
if (h2g(max) == ts->info->stack_limit) {
|
|
#else
|
|
if (h2g(min) == ts->info->stack_limit) {
|
|
#endif
|
|
path = "[stack]";
|
|
} else {
|
|
path = e->path;
|
|
}
|
|
|
|
count = dprintf(fd, TARGET_ABI_FMT_ptr "-" TARGET_ABI_FMT_ptr
|
|
" %c%c%c%c %08" PRIx64 " %s %"PRId64,
|
|
h2g(min), h2g(max - 1) + 1,
|
|
(flags & PAGE_READ) ? 'r' : '-',
|
|
(flags & PAGE_WRITE_ORG) ? 'w' : '-',
|
|
(flags & PAGE_EXEC) ? 'x' : '-',
|
|
e->is_priv ? 'p' : 's',
|
|
(uint64_t) e->offset, e->dev, e->inode);
|
|
if (path) {
|
|
dprintf(fd, "%*s%s\n", 73 - count, "", path);
|
|
} else {
|
|
dprintf(fd, "\n");
|
|
}
|
|
}
|
|
}
|
|
|
|
free_self_maps(map_info);
|
|
|
|
#ifdef TARGET_VSYSCALL_PAGE
|
|
/*
|
|
* We only support execution from the vsyscall page.
|
|
* This is as if CONFIG_LEGACY_VSYSCALL_XONLY=y from v5.3.
|
|
*/
|
|
count = dprintf(fd, TARGET_FMT_lx "-" TARGET_FMT_lx
|
|
" --xp 00000000 00:00 0",
|
|
TARGET_VSYSCALL_PAGE, TARGET_VSYSCALL_PAGE + TARGET_PAGE_SIZE);
|
|
dprintf(fd, "%*s%s\n", 73 - count, "", "[vsyscall]");
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int open_self_stat(CPUArchState *cpu_env, int fd)
|
|
{
|
|
CPUState *cpu = env_cpu(cpu_env);
|
|
TaskState *ts = cpu->opaque;
|
|
g_autoptr(GString) buf = g_string_new(NULL);
|
|
int i;
|
|
|
|
for (i = 0; i < 44; i++) {
|
|
if (i == 0) {
|
|
/* pid */
|
|
g_string_printf(buf, FMT_pid " ", getpid());
|
|
} else if (i == 1) {
|
|
/* app name */
|
|
gchar *bin = g_strrstr(ts->bprm->argv[0], "/");
|
|
bin = bin ? bin + 1 : ts->bprm->argv[0];
|
|
g_string_printf(buf, "(%.15s) ", bin);
|
|
} else if (i == 3) {
|
|
/* ppid */
|
|
g_string_printf(buf, FMT_pid " ", getppid());
|
|
} else if (i == 21) {
|
|
/* starttime */
|
|
g_string_printf(buf, "%" PRIu64 " ", ts->start_boottime);
|
|
} else if (i == 27) {
|
|
/* stack bottom */
|
|
g_string_printf(buf, TARGET_ABI_FMT_ld " ", ts->info->start_stack);
|
|
} else {
|
|
/* for the rest, there is MasterCard */
|
|
g_string_printf(buf, "0%c", i == 43 ? '\n' : ' ');
|
|
}
|
|
|
|
if (write(fd, buf->str, buf->len) != buf->len) {
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int open_self_auxv(CPUArchState *cpu_env, int fd)
|
|
{
|
|
CPUState *cpu = env_cpu(cpu_env);
|
|
TaskState *ts = cpu->opaque;
|
|
abi_ulong auxv = ts->info->saved_auxv;
|
|
abi_ulong len = ts->info->auxv_len;
|
|
char *ptr;
|
|
|
|
/*
|
|
* Auxiliary vector is stored in target process stack.
|
|
* read in whole auxv vector and copy it to file
|
|
*/
|
|
ptr = lock_user(VERIFY_READ, auxv, len, 0);
|
|
if (ptr != NULL) {
|
|
while (len > 0) {
|
|
ssize_t r;
|
|
r = write(fd, ptr, len);
|
|
if (r <= 0) {
|
|
break;
|
|
}
|
|
len -= r;
|
|
ptr += r;
|
|
}
|
|
lseek(fd, 0, SEEK_SET);
|
|
unlock_user(ptr, auxv, len);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int is_proc_myself(const char *filename, const char *entry)
|
|
{
|
|
if (!strncmp(filename, "/proc/", strlen("/proc/"))) {
|
|
filename += strlen("/proc/");
|
|
if (!strncmp(filename, "self/", strlen("self/"))) {
|
|
filename += strlen("self/");
|
|
} else if (*filename >= '1' && *filename <= '9') {
|
|
char myself[80];
|
|
snprintf(myself, sizeof(myself), "%d/", getpid());
|
|
if (!strncmp(filename, myself, strlen(myself))) {
|
|
filename += strlen(myself);
|
|
} else {
|
|
return 0;
|
|
}
|
|
} else {
|
|
return 0;
|
|
}
|
|
if (!strcmp(filename, entry)) {
|
|
return 1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void excp_dump_file(FILE *logfile, CPUArchState *env,
|
|
const char *fmt, int code)
|
|
{
|
|
if (logfile) {
|
|
CPUState *cs = env_cpu(env);
|
|
|
|
fprintf(logfile, fmt, code);
|
|
fprintf(logfile, "Failing executable: %s\n", exec_path);
|
|
cpu_dump_state(cs, logfile, 0);
|
|
open_self_maps(env, fileno(logfile));
|
|
}
|
|
}
|
|
|
|
void target_exception_dump(CPUArchState *env, const char *fmt, int code)
|
|
{
|
|
/* dump to console */
|
|
excp_dump_file(stderr, env, fmt, code);
|
|
|
|
/* dump to log file */
|
|
if (qemu_log_separate()) {
|
|
FILE *logfile = qemu_log_trylock();
|
|
|
|
excp_dump_file(logfile, env, fmt, code);
|
|
qemu_log_unlock(logfile);
|
|
}
|
|
}
|
|
|
|
#if HOST_BIG_ENDIAN != TARGET_BIG_ENDIAN || \
|
|
defined(TARGET_SPARC) || defined(TARGET_M68K) || defined(TARGET_HPPA)
|
|
static int is_proc(const char *filename, const char *entry)
|
|
{
|
|
return strcmp(filename, entry) == 0;
|
|
}
|
|
#endif
|
|
|
|
#if HOST_BIG_ENDIAN != TARGET_BIG_ENDIAN
|
|
static int open_net_route(CPUArchState *cpu_env, int fd)
|
|
{
|
|
FILE *fp;
|
|
char *line = NULL;
|
|
size_t len = 0;
|
|
ssize_t read;
|
|
|
|
fp = fopen("/proc/net/route", "r");
|
|
if (fp == NULL) {
|
|
return -1;
|
|
}
|
|
|
|
/* read header */
|
|
|
|
read = getline(&line, &len, fp);
|
|
dprintf(fd, "%s", line);
|
|
|
|
/* read routes */
|
|
|
|
while ((read = getline(&line, &len, fp)) != -1) {
|
|
char iface[16];
|
|
uint32_t dest, gw, mask;
|
|
unsigned int flags, refcnt, use, metric, mtu, window, irtt;
|
|
int fields;
|
|
|
|
fields = sscanf(line,
|
|
"%s\t%08x\t%08x\t%04x\t%d\t%d\t%d\t%08x\t%d\t%u\t%u\n",
|
|
iface, &dest, &gw, &flags, &refcnt, &use, &metric,
|
|
&mask, &mtu, &window, &irtt);
|
|
if (fields != 11) {
|
|
continue;
|
|
}
|
|
dprintf(fd, "%s\t%08x\t%08x\t%04x\t%d\t%d\t%d\t%08x\t%d\t%u\t%u\n",
|
|
iface, tswap32(dest), tswap32(gw), flags, refcnt, use,
|
|
metric, tswap32(mask), mtu, window, irtt);
|
|
}
|
|
|
|
free(line);
|
|
fclose(fp);
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#if defined(TARGET_SPARC)
|
|
static int open_cpuinfo(CPUArchState *cpu_env, int fd)
|
|
{
|
|
dprintf(fd, "type\t\t: sun4u\n");
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#if defined(TARGET_HPPA)
|
|
static int open_cpuinfo(CPUArchState *cpu_env, int fd)
|
|
{
|
|
dprintf(fd, "cpu family\t: PA-RISC 1.1e\n");
|
|
dprintf(fd, "cpu\t\t: PA7300LC (PCX-L2)\n");
|
|
dprintf(fd, "capabilities\t: os32\n");
|
|
dprintf(fd, "model\t\t: 9000/778/B160L\n");
|
|
dprintf(fd, "model name\t: Merlin L2 160 QEMU (9000/778/B160L)\n");
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#if defined(TARGET_M68K)
|
|
static int open_hardware(CPUArchState *cpu_env, int fd)
|
|
{
|
|
dprintf(fd, "Model:\t\tqemu-m68k\n");
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static int do_openat(CPUArchState *cpu_env, int dirfd, const char *pathname, int flags, mode_t mode)
|
|
{
|
|
struct fake_open {
|
|
const char *filename;
|
|
int (*fill)(CPUArchState *cpu_env, int fd);
|
|
int (*cmp)(const char *s1, const char *s2);
|
|
};
|
|
const struct fake_open *fake_open;
|
|
static const struct fake_open fakes[] = {
|
|
{ "maps", open_self_maps, is_proc_myself },
|
|
{ "stat", open_self_stat, is_proc_myself },
|
|
{ "auxv", open_self_auxv, is_proc_myself },
|
|
{ "cmdline", open_self_cmdline, is_proc_myself },
|
|
#if HOST_BIG_ENDIAN != TARGET_BIG_ENDIAN
|
|
{ "/proc/net/route", open_net_route, is_proc },
|
|
#endif
|
|
#if defined(TARGET_SPARC) || defined(TARGET_HPPA)
|
|
{ "/proc/cpuinfo", open_cpuinfo, is_proc },
|
|
#endif
|
|
#if defined(TARGET_M68K)
|
|
{ "/proc/hardware", open_hardware, is_proc },
|
|
#endif
|
|
{ NULL, NULL, NULL }
|
|
};
|
|
|
|
if (is_proc_myself(pathname, "exe")) {
|
|
return safe_openat(dirfd, exec_path, flags, mode);
|
|
}
|
|
|
|
for (fake_open = fakes; fake_open->filename; fake_open++) {
|
|
if (fake_open->cmp(pathname, fake_open->filename)) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (fake_open->filename) {
|
|
const char *tmpdir;
|
|
char filename[PATH_MAX];
|
|
int fd, r;
|
|
|
|
fd = memfd_create("qemu-open", 0);
|
|
if (fd < 0) {
|
|
if (errno != ENOSYS) {
|
|
return fd;
|
|
}
|
|
/* create temporary file to map stat to */
|
|
tmpdir = getenv("TMPDIR");
|
|
if (!tmpdir)
|
|
tmpdir = "/tmp";
|
|
snprintf(filename, sizeof(filename), "%s/qemu-open.XXXXXX", tmpdir);
|
|
fd = mkstemp(filename);
|
|
if (fd < 0) {
|
|
return fd;
|
|
}
|
|
unlink(filename);
|
|
}
|
|
|
|
if ((r = fake_open->fill(cpu_env, fd))) {
|
|
int e = errno;
|
|
close(fd);
|
|
errno = e;
|
|
return r;
|
|
}
|
|
lseek(fd, 0, SEEK_SET);
|
|
|
|
return fd;
|
|
}
|
|
|
|
return safe_openat(dirfd, path(pathname), flags, mode);
|
|
}
|
|
|
|
#define TIMER_MAGIC 0x0caf0000
|
|
#define TIMER_MAGIC_MASK 0xffff0000
|
|
|
|
/* Convert QEMU provided timer ID back to internal 16bit index format */
|
|
static target_timer_t get_timer_id(abi_long arg)
|
|
{
|
|
target_timer_t timerid = arg;
|
|
|
|
if ((timerid & TIMER_MAGIC_MASK) != TIMER_MAGIC) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
timerid &= 0xffff;
|
|
|
|
if (timerid >= ARRAY_SIZE(g_posix_timers)) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
return timerid;
|
|
}
|
|
|
|
/* qemu_execve() Must return target values and target errnos.
|
|
*
|
|
* Although execve() is not an interruptible syscall it is
|
|
* a special case where we must use the safe_syscall wrapper:
|
|
* if we allow a signal to happen before we make the host
|
|
* syscall then we will 'lose' it, because at the point of
|
|
* execve the process leaves QEMU's control. So we use the
|
|
* safe syscall wrapper to ensure that we either take the
|
|
* signal as a guest signal, or else it does not happen
|
|
* before the execve completes and makes it the other
|
|
* program's problem.
|
|
*/
|
|
static abi_long qemu_execve(char *filename, char *argv[],
|
|
char *envp[])
|
|
{
|
|
char *i_arg = NULL, *i_name = NULL;
|
|
char **new_argp;
|
|
int argc, fd, ret, i, offset = 5;
|
|
char *cp;
|
|
char buf[BINPRM_BUF_SIZE];
|
|
|
|
/* normal execve case */
|
|
if (qemu_execve_path == NULL || *qemu_execve_path == 0) {
|
|
return get_errno(safe_execve(filename, argv, envp));
|
|
}
|
|
|
|
for (argc = 0; argv[argc] != NULL; argc++) {
|
|
/* nothing */ ;
|
|
}
|
|
|
|
fd = open(filename, O_RDONLY);
|
|
if (fd == -1) {
|
|
return get_errno(fd);
|
|
}
|
|
|
|
ret = read(fd, buf, BINPRM_BUF_SIZE);
|
|
if (ret == -1) {
|
|
close(fd);
|
|
return get_errno(ret);
|
|
}
|
|
|
|
/* if we have less than 2 bytes, we can guess it is not executable */
|
|
if (ret < 2) {
|
|
close(fd);
|
|
return -host_to_target_errno(ENOEXEC);
|
|
}
|
|
|
|
close(fd);
|
|
|
|
/* adapted from the kernel
|
|
* https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/fs/binfmt_script.c
|
|
*/
|
|
if ((buf[0] == '#') && (buf[1] == '!')) {
|
|
/*
|
|
* This section does the #! interpretation.
|
|
* Sorta complicated, but hopefully it will work. -TYT
|
|
*/
|
|
|
|
buf[BINPRM_BUF_SIZE - 1] = '\0';
|
|
cp = strchr(buf, '\n');
|
|
if (cp == NULL) {
|
|
cp = buf + BINPRM_BUF_SIZE - 1;
|
|
}
|
|
*cp = '\0';
|
|
while (cp > buf) {
|
|
cp--;
|
|
if ((*cp == ' ') || (*cp == '\t')) {
|
|
*cp = '\0';
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
for (cp = buf + 2; (*cp == ' ') || (*cp == '\t'); cp++) {
|
|
/* nothing */ ;
|
|
}
|
|
if (*cp == '\0') {
|
|
return -ENOEXEC; /* No interpreter name found */
|
|
}
|
|
i_name = cp;
|
|
i_arg = NULL;
|
|
for ( ; *cp && (*cp != ' ') && (*cp != '\t'); cp++) {
|
|
/* nothing */ ;
|
|
}
|
|
while ((*cp == ' ') || (*cp == '\t')) {
|
|
*cp++ = '\0';
|
|
}
|
|
if (*cp) {
|
|
i_arg = cp;
|
|
}
|
|
|
|
if (i_arg) {
|
|
offset += 2;
|
|
} else {
|
|
offset += 1;
|
|
}
|
|
}
|
|
|
|
new_argp = alloca((argc + offset + 1) * sizeof(void *));
|
|
|
|
/* Copy the original arguments with offset */
|
|
for (i = 0; i < argc; i++) {
|
|
new_argp[i + offset] = argv[i];
|
|
}
|
|
|
|
new_argp[0] = strdup(qemu_execve_path);
|
|
new_argp[1] = strdup("--execve");
|
|
new_argp[2] = strdup(qemu_execve_path);
|
|
new_argp[3] = strdup("-0");
|
|
new_argp[offset] = filename;
|
|
new_argp[argc + offset] = NULL;
|
|
|
|
if (i_name) {
|
|
new_argp[4] = i_name;
|
|
new_argp[5] = i_name;
|
|
|
|
if (i_arg) {
|
|
new_argp[6] = i_arg;
|
|
}
|
|
} else {
|
|
new_argp[4] = argv[0];
|
|
}
|
|
|
|
return get_errno(safe_execve(qemu_execve_path, new_argp, envp));
|
|
}
|
|
|
|
static int target_to_host_cpu_mask(unsigned long *host_mask,
|
|
size_t host_size,
|
|
abi_ulong target_addr,
|
|
size_t target_size)
|
|
{
|
|
unsigned target_bits = sizeof(abi_ulong) * 8;
|
|
unsigned host_bits = sizeof(*host_mask) * 8;
|
|
abi_ulong *target_mask;
|
|
unsigned i, j;
|
|
|
|
assert(host_size >= target_size);
|
|
|
|
target_mask = lock_user(VERIFY_READ, target_addr, target_size, 1);
|
|
if (!target_mask) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
memset(host_mask, 0, host_size);
|
|
|
|
for (i = 0 ; i < target_size / sizeof(abi_ulong); i++) {
|
|
unsigned bit = i * target_bits;
|
|
abi_ulong val;
|
|
|
|
__get_user(val, &target_mask[i]);
|
|
for (j = 0; j < target_bits; j++, bit++) {
|
|
if (val & (1UL << j)) {
|
|
host_mask[bit / host_bits] |= 1UL << (bit % host_bits);
|
|
}
|
|
}
|
|
}
|
|
|
|
unlock_user(target_mask, target_addr, 0);
|
|
return 0;
|
|
}
|
|
|
|
static int host_to_target_cpu_mask(const unsigned long *host_mask,
|
|
size_t host_size,
|
|
abi_ulong target_addr,
|
|
size_t target_size)
|
|
{
|
|
unsigned target_bits = sizeof(abi_ulong) * 8;
|
|
unsigned host_bits = sizeof(*host_mask) * 8;
|
|
abi_ulong *target_mask;
|
|
unsigned i, j;
|
|
|
|
assert(host_size >= target_size);
|
|
|
|
target_mask = lock_user(VERIFY_WRITE, target_addr, target_size, 0);
|
|
if (!target_mask) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
for (i = 0 ; i < target_size / sizeof(abi_ulong); i++) {
|
|
unsigned bit = i * target_bits;
|
|
abi_ulong val = 0;
|
|
|
|
for (j = 0; j < target_bits; j++, bit++) {
|
|
if (host_mask[bit / host_bits] & (1UL << (bit % host_bits))) {
|
|
val |= 1UL << j;
|
|
}
|
|
}
|
|
__put_user(val, &target_mask[i]);
|
|
}
|
|
|
|
unlock_user(target_mask, target_addr, target_size);
|
|
return 0;
|
|
}
|
|
|
|
#ifdef TARGET_NR_getdents
|
|
static int do_getdents(abi_long dirfd, abi_long arg2, abi_long count)
|
|
{
|
|
g_autofree void *hdirp = NULL;
|
|
void *tdirp;
|
|
int hlen, hoff, toff;
|
|
int hreclen, treclen;
|
|
off64_t prev_diroff = 0;
|
|
|
|
hdirp = g_try_malloc(count);
|
|
if (!hdirp) {
|
|
return -TARGET_ENOMEM;
|
|
}
|
|
|
|
#ifdef EMULATE_GETDENTS_WITH_GETDENTS
|
|
hlen = sys_getdents(dirfd, hdirp, count);
|
|
#else
|
|
hlen = sys_getdents64(dirfd, hdirp, count);
|
|
#endif
|
|
|
|
hlen = get_errno(hlen);
|
|
if (is_error(hlen)) {
|
|
return hlen;
|
|
}
|
|
|
|
tdirp = lock_user(VERIFY_WRITE, arg2, count, 0);
|
|
if (!tdirp) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
for (hoff = toff = 0; hoff < hlen; hoff += hreclen, toff += treclen) {
|
|
#ifdef EMULATE_GETDENTS_WITH_GETDENTS
|
|
struct linux_dirent *hde = hdirp + hoff;
|
|
#else
|
|
struct linux_dirent64 *hde = hdirp + hoff;
|
|
#endif
|
|
struct target_dirent *tde = tdirp + toff;
|
|
int namelen;
|
|
uint8_t type;
|
|
|
|
namelen = strlen(hde->d_name);
|
|
hreclen = hde->d_reclen;
|
|
treclen = offsetof(struct target_dirent, d_name) + namelen + 2;
|
|
treclen = QEMU_ALIGN_UP(treclen, __alignof(struct target_dirent));
|
|
|
|
if (toff + treclen > count) {
|
|
/*
|
|
* If the host struct is smaller than the target struct, or
|
|
* requires less alignment and thus packs into less space,
|
|
* then the host can return more entries than we can pass
|
|
* on to the guest.
|
|
*/
|
|
if (toff == 0) {
|
|
toff = -TARGET_EINVAL; /* result buffer is too small */
|
|
break;
|
|
}
|
|
/*
|
|
* Return what we have, resetting the file pointer to the
|
|
* location of the first record not returned.
|
|
*/
|
|
lseek64(dirfd, prev_diroff, SEEK_SET);
|
|
break;
|
|
}
|
|
|
|
prev_diroff = hde->d_off;
|
|
tde->d_ino = tswapal(hde->d_ino);
|
|
tde->d_off = tswapal(hde->d_off);
|
|
tde->d_reclen = tswap16(treclen);
|
|
memcpy(tde->d_name, hde->d_name, namelen + 1);
|
|
|
|
/*
|
|
* The getdents type is in what was formerly a padding byte at the
|
|
* end of the structure.
|
|
*/
|
|
#ifdef EMULATE_GETDENTS_WITH_GETDENTS
|
|
type = *((uint8_t *)hde + hreclen - 1);
|
|
#else
|
|
type = hde->d_type;
|
|
#endif
|
|
*((uint8_t *)tde + treclen - 1) = type;
|
|
}
|
|
|
|
unlock_user(tdirp, arg2, toff);
|
|
return toff;
|
|
}
|
|
#endif /* TARGET_NR_getdents */
|
|
|
|
#if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
|
|
static int do_getdents64(abi_long dirfd, abi_long arg2, abi_long count)
|
|
{
|
|
g_autofree void *hdirp = NULL;
|
|
void *tdirp;
|
|
int hlen, hoff, toff;
|
|
int hreclen, treclen;
|
|
off64_t prev_diroff = 0;
|
|
|
|
hdirp = g_try_malloc(count);
|
|
if (!hdirp) {
|
|
return -TARGET_ENOMEM;
|
|
}
|
|
|
|
hlen = get_errno(sys_getdents64(dirfd, hdirp, count));
|
|
if (is_error(hlen)) {
|
|
return hlen;
|
|
}
|
|
|
|
tdirp = lock_user(VERIFY_WRITE, arg2, count, 0);
|
|
if (!tdirp) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
for (hoff = toff = 0; hoff < hlen; hoff += hreclen, toff += treclen) {
|
|
struct linux_dirent64 *hde = hdirp + hoff;
|
|
struct target_dirent64 *tde = tdirp + toff;
|
|
int namelen;
|
|
|
|
namelen = strlen(hde->d_name) + 1;
|
|
hreclen = hde->d_reclen;
|
|
treclen = offsetof(struct target_dirent64, d_name) + namelen;
|
|
treclen = QEMU_ALIGN_UP(treclen, __alignof(struct target_dirent64));
|
|
|
|
if (toff + treclen > count) {
|
|
/*
|
|
* If the host struct is smaller than the target struct, or
|
|
* requires less alignment and thus packs into less space,
|
|
* then the host can return more entries than we can pass
|
|
* on to the guest.
|
|
*/
|
|
if (toff == 0) {
|
|
toff = -TARGET_EINVAL; /* result buffer is too small */
|
|
break;
|
|
}
|
|
/*
|
|
* Return what we have, resetting the file pointer to the
|
|
* location of the first record not returned.
|
|
*/
|
|
lseek64(dirfd, prev_diroff, SEEK_SET);
|
|
break;
|
|
}
|
|
|
|
prev_diroff = hde->d_off;
|
|
tde->d_ino = tswap64(hde->d_ino);
|
|
tde->d_off = tswap64(hde->d_off);
|
|
tde->d_reclen = tswap16(treclen);
|
|
tde->d_type = hde->d_type;
|
|
memcpy(tde->d_name, hde->d_name, namelen);
|
|
}
|
|
|
|
unlock_user(tdirp, arg2, toff);
|
|
return toff;
|
|
}
|
|
#endif /* TARGET_NR_getdents64 */
|
|
|
|
#if defined(TARGET_NR_pivot_root) && defined(__NR_pivot_root)
|
|
_syscall2(int, pivot_root, const char *, new_root, const char *, put_old)
|
|
#endif
|
|
|
|
/* This is an internal helper for do_syscall so that it is easier
|
|
* to have a single return point, so that actions, such as logging
|
|
* of syscall results, can be performed.
|
|
* All errnos that do_syscall() returns must be -TARGET_<errcode>.
|
|
*/
|
|
static abi_long do_syscall1(CPUArchState *cpu_env, int num, abi_long arg1,
|
|
abi_long arg2, abi_long arg3, abi_long arg4,
|
|
abi_long arg5, abi_long arg6, abi_long arg7,
|
|
abi_long arg8)
|
|
{
|
|
CPUState *cpu = env_cpu(cpu_env);
|
|
abi_long ret;
|
|
#if defined(TARGET_NR_stat) || defined(TARGET_NR_stat64) \
|
|
|| defined(TARGET_NR_lstat) || defined(TARGET_NR_lstat64) \
|
|
|| defined(TARGET_NR_fstat) || defined(TARGET_NR_fstat64) \
|
|
|| defined(TARGET_NR_statx)
|
|
struct stat st;
|
|
#endif
|
|
#if defined(TARGET_NR_statfs) || defined(TARGET_NR_statfs64) \
|
|
|| defined(TARGET_NR_fstatfs)
|
|
struct statfs stfs;
|
|
#endif
|
|
void *p;
|
|
|
|
switch(num) {
|
|
case TARGET_NR_exit:
|
|
/* In old applications this may be used to implement _exit(2).
|
|
However in threaded applications it is used for thread termination,
|
|
and _exit_group is used for application termination.
|
|
Do thread termination if we have more then one thread. */
|
|
|
|
if (block_signals()) {
|
|
return -QEMU_ERESTARTSYS;
|
|
}
|
|
|
|
pthread_mutex_lock(&clone_lock);
|
|
|
|
if (CPU_NEXT(first_cpu)) {
|
|
TaskState *ts = cpu->opaque;
|
|
|
|
object_property_set_bool(OBJECT(cpu), "realized", false, NULL);
|
|
object_unref(OBJECT(cpu));
|
|
/*
|
|
* At this point the CPU should be unrealized and removed
|
|
* from cpu lists. We can clean-up the rest of the thread
|
|
* data without the lock held.
|
|
*/
|
|
|
|
pthread_mutex_unlock(&clone_lock);
|
|
|
|
if (ts->child_tidptr) {
|
|
put_user_u32(0, ts->child_tidptr);
|
|
do_sys_futex(g2h(cpu, ts->child_tidptr),
|
|
FUTEX_WAKE, INT_MAX, NULL, NULL, 0);
|
|
}
|
|
thread_cpu = NULL;
|
|
g_free(ts);
|
|
rcu_unregister_thread();
|
|
pthread_exit(NULL);
|
|
}
|
|
|
|
pthread_mutex_unlock(&clone_lock);
|
|
preexit_cleanup(cpu_env, arg1);
|
|
_exit(arg1);
|
|
return 0; /* avoid warning */
|
|
case TARGET_NR_read:
|
|
if (arg2 == 0 && arg3 == 0) {
|
|
return get_errno(safe_read(arg1, 0, 0));
|
|
} else {
|
|
if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
|
|
return -TARGET_EFAULT;
|
|
ret = get_errno(safe_read(arg1, p, arg3));
|
|
if (ret >= 0 &&
|
|
fd_trans_host_to_target_data(arg1)) {
|
|
ret = fd_trans_host_to_target_data(arg1)(p, ret);
|
|
}
|
|
unlock_user(p, arg2, ret);
|
|
}
|
|
return ret;
|
|
case TARGET_NR_write:
|
|
if (arg2 == 0 && arg3 == 0) {
|
|
return get_errno(safe_write(arg1, 0, 0));
|
|
}
|
|
if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
|
|
return -TARGET_EFAULT;
|
|
if (fd_trans_target_to_host_data(arg1)) {
|
|
void *copy = g_malloc(arg3);
|
|
memcpy(copy, p, arg3);
|
|
ret = fd_trans_target_to_host_data(arg1)(copy, arg3);
|
|
if (ret >= 0) {
|
|
ret = get_errno(safe_write(arg1, copy, ret));
|
|
}
|
|
g_free(copy);
|
|
} else {
|
|
ret = get_errno(safe_write(arg1, p, arg3));
|
|
}
|
|
unlock_user(p, arg2, 0);
|
|
return ret;
|
|
|
|
#ifdef TARGET_NR_open
|
|
case TARGET_NR_open:
|
|
if (!(p = lock_user_string(arg1)))
|
|
return -TARGET_EFAULT;
|
|
ret = get_errno(do_openat(cpu_env, AT_FDCWD, p,
|
|
target_to_host_bitmask(arg2, fcntl_flags_tbl),
|
|
arg3));
|
|
fd_trans_unregister(ret);
|
|
unlock_user(p, arg1, 0);
|
|
return ret;
|
|
#endif
|
|
case TARGET_NR_openat:
|
|
if (!(p = lock_user_string(arg2)))
|
|
return -TARGET_EFAULT;
|
|
ret = get_errno(do_openat(cpu_env, arg1, p,
|
|
target_to_host_bitmask(arg3, fcntl_flags_tbl),
|
|
arg4));
|
|
fd_trans_unregister(ret);
|
|
unlock_user(p, arg2, 0);
|
|
return ret;
|
|
#if defined(TARGET_NR_name_to_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
|
|
case TARGET_NR_name_to_handle_at:
|
|
ret = do_name_to_handle_at(arg1, arg2, arg3, arg4, arg5);
|
|
return ret;
|
|
#endif
|
|
#if defined(TARGET_NR_open_by_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
|
|
case TARGET_NR_open_by_handle_at:
|
|
ret = do_open_by_handle_at(arg1, arg2, arg3);
|
|
fd_trans_unregister(ret);
|
|
return ret;
|
|
#endif
|
|
#if defined(__NR_pidfd_open) && defined(TARGET_NR_pidfd_open)
|
|
case TARGET_NR_pidfd_open:
|
|
return get_errno(pidfd_open(arg1, arg2));
|
|
#endif
|
|
#if defined(__NR_pidfd_send_signal) && defined(TARGET_NR_pidfd_send_signal)
|
|
case TARGET_NR_pidfd_send_signal:
|
|
{
|
|
siginfo_t uinfo, *puinfo;
|
|
|
|
if (arg3) {
|
|
p = lock_user(VERIFY_READ, arg3, sizeof(target_siginfo_t), 1);
|
|
if (!p) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
target_to_host_siginfo(&uinfo, p);
|
|
unlock_user(p, arg3, 0);
|
|
puinfo = &uinfo;
|
|
} else {
|
|
puinfo = NULL;
|
|
}
|
|
ret = get_errno(pidfd_send_signal(arg1, target_to_host_signal(arg2),
|
|
puinfo, arg4));
|
|
}
|
|
return ret;
|
|
#endif
|
|
#if defined(__NR_pidfd_getfd) && defined(TARGET_NR_pidfd_getfd)
|
|
case TARGET_NR_pidfd_getfd:
|
|
return get_errno(pidfd_getfd(arg1, arg2, arg3));
|
|
#endif
|
|
case TARGET_NR_close:
|
|
fd_trans_unregister(arg1);
|
|
return get_errno(close(arg1));
|
|
#if defined(__NR_close_range) && defined(TARGET_NR_close_range)
|
|
case TARGET_NR_close_range:
|
|
ret = get_errno(sys_close_range(arg1, arg2, arg3));
|
|
if (ret == 0 && !(arg3 & CLOSE_RANGE_CLOEXEC)) {
|
|
abi_long fd, maxfd;
|
|
maxfd = MIN(arg2, target_fd_max);
|
|
for (fd = arg1; fd < maxfd; fd++) {
|
|
fd_trans_unregister(fd);
|
|
}
|
|
}
|
|
return ret;
|
|
#endif
|
|
|
|
case TARGET_NR_brk:
|
|
return do_brk(arg1);
|
|
#ifdef TARGET_NR_fork
|
|
case TARGET_NR_fork:
|
|
return get_errno(do_fork(cpu_env, TARGET_SIGCHLD, 0, 0, 0, 0));
|
|
#endif
|
|
#ifdef TARGET_NR_waitpid
|
|
case TARGET_NR_waitpid:
|
|
{
|
|
int status;
|
|
ret = get_errno(safe_wait4(arg1, &status, arg3, 0));
|
|
if (!is_error(ret) && arg2 && ret
|
|
&& put_user_s32(host_to_target_waitstatus(status), arg2))
|
|
return -TARGET_EFAULT;
|
|
}
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_waitid
|
|
case TARGET_NR_waitid:
|
|
{
|
|
siginfo_t info;
|
|
info.si_pid = 0;
|
|
ret = get_errno(safe_waitid(arg1, arg2, &info, arg4, NULL));
|
|
if (!is_error(ret) && arg3 && info.si_pid != 0) {
|
|
if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_siginfo_t), 0)))
|
|
return -TARGET_EFAULT;
|
|
host_to_target_siginfo(p, &info);
|
|
unlock_user(p, arg3, sizeof(target_siginfo_t));
|
|
}
|
|
}
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_creat /* not on alpha */
|
|
case TARGET_NR_creat:
|
|
if (!(p = lock_user_string(arg1)))
|
|
return -TARGET_EFAULT;
|
|
ret = get_errno(creat(p, arg2));
|
|
fd_trans_unregister(ret);
|
|
unlock_user(p, arg1, 0);
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_link
|
|
case TARGET_NR_link:
|
|
{
|
|
void * p2;
|
|
p = lock_user_string(arg1);
|
|
p2 = lock_user_string(arg2);
|
|
if (!p || !p2)
|
|
ret = -TARGET_EFAULT;
|
|
else
|
|
ret = get_errno(link(p, p2));
|
|
unlock_user(p2, arg2, 0);
|
|
unlock_user(p, arg1, 0);
|
|
}
|
|
return ret;
|
|
#endif
|
|
#if defined(TARGET_NR_linkat)
|
|
case TARGET_NR_linkat:
|
|
{
|
|
void * p2 = NULL;
|
|
if (!arg2 || !arg4)
|
|
return -TARGET_EFAULT;
|
|
p = lock_user_string(arg2);
|
|
p2 = lock_user_string(arg4);
|
|
if (!p || !p2)
|
|
ret = -TARGET_EFAULT;
|
|
else
|
|
ret = get_errno(linkat(arg1, p, arg3, p2, arg5));
|
|
unlock_user(p, arg2, 0);
|
|
unlock_user(p2, arg4, 0);
|
|
}
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_unlink
|
|
case TARGET_NR_unlink:
|
|
if (!(p = lock_user_string(arg1)))
|
|
return -TARGET_EFAULT;
|
|
ret = get_errno(unlink(p));
|
|
unlock_user(p, arg1, 0);
|
|
return ret;
|
|
#endif
|
|
#if defined(TARGET_NR_unlinkat)
|
|
case TARGET_NR_unlinkat:
|
|
if (!(p = lock_user_string(arg2)))
|
|
return -TARGET_EFAULT;
|
|
ret = get_errno(unlinkat(arg1, p, arg3));
|
|
unlock_user(p, arg2, 0);
|
|
return ret;
|
|
#endif
|
|
case TARGET_NR_execve:
|
|
{
|
|
char **argp, **envp;
|
|
int argc, envc;
|
|
abi_ulong gp;
|
|
abi_ulong guest_argp;
|
|
abi_ulong guest_envp;
|
|
abi_ulong addr;
|
|
char **q;
|
|
|
|
argc = 0;
|
|
guest_argp = arg2;
|
|
for (gp = guest_argp; gp; gp += sizeof(abi_ulong)) {
|
|
if (get_user_ual(addr, gp))
|
|
return -TARGET_EFAULT;
|
|
if (!addr)
|
|
break;
|
|
argc++;
|
|
}
|
|
envc = 0;
|
|
guest_envp = arg3;
|
|
for (gp = guest_envp; gp; gp += sizeof(abi_ulong)) {
|
|
if (get_user_ual(addr, gp))
|
|
return -TARGET_EFAULT;
|
|
if (!addr)
|
|
break;
|
|
envc++;
|
|
}
|
|
|
|
argp = g_new0(char *, argc + 1);
|
|
envp = g_new0(char *, envc + 1);
|
|
|
|
for (gp = guest_argp, q = argp; gp;
|
|
gp += sizeof(abi_ulong), q++) {
|
|
if (get_user_ual(addr, gp))
|
|
goto execve_efault;
|
|
if (!addr)
|
|
break;
|
|
if (!(*q = lock_user_string(addr)))
|
|
goto execve_efault;
|
|
}
|
|
*q = NULL;
|
|
|
|
for (gp = guest_envp, q = envp; gp;
|
|
gp += sizeof(abi_ulong), q++) {
|
|
if (get_user_ual(addr, gp))
|
|
goto execve_efault;
|
|
if (!addr)
|
|
break;
|
|
if (!(*q = lock_user_string(addr)))
|
|
goto execve_efault;
|
|
}
|
|
*q = NULL;
|
|
|
|
if (!(p = lock_user_string(arg1)))
|
|
goto execve_efault;
|
|
if (is_proc_myself(p, "exe")) {
|
|
ret = qemu_execve(exec_path, argp, envp);
|
|
} else {
|
|
ret = qemu_execve(p, argp, envp);
|
|
}
|
|
unlock_user(p, arg1, 0);
|
|
|
|
goto execve_end;
|
|
|
|
execve_efault:
|
|
ret = -TARGET_EFAULT;
|
|
|
|
execve_end:
|
|
for (gp = guest_argp, q = argp; *q;
|
|
gp += sizeof(abi_ulong), q++) {
|
|
if (get_user_ual(addr, gp)
|
|
|| !addr)
|
|
break;
|
|
unlock_user(*q, addr, 0);
|
|
}
|
|
for (gp = guest_envp, q = envp; *q;
|
|
gp += sizeof(abi_ulong), q++) {
|
|
if (get_user_ual(addr, gp)
|
|
|| !addr)
|
|
break;
|
|
unlock_user(*q, addr, 0);
|
|
}
|
|
|
|
g_free(argp);
|
|
g_free(envp);
|
|
}
|
|
return ret;
|
|
case TARGET_NR_chdir:
|
|
if (!(p = lock_user_string(arg1)))
|
|
return -TARGET_EFAULT;
|
|
ret = get_errno(chdir(p));
|
|
unlock_user(p, arg1, 0);
|
|
return ret;
|
|
#ifdef TARGET_NR_time
|
|
case TARGET_NR_time:
|
|
{
|
|
time_t host_time;
|
|
ret = get_errno(time(&host_time));
|
|
if (!is_error(ret)
|
|
&& arg1
|
|
&& put_user_sal(host_time, arg1))
|
|
return -TARGET_EFAULT;
|
|
}
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_mknod
|
|
case TARGET_NR_mknod:
|
|
if (!(p = lock_user_string(arg1)))
|
|
return -TARGET_EFAULT;
|
|
ret = get_errno(mknod(p, arg2, arg3));
|
|
unlock_user(p, arg1, 0);
|
|
return ret;
|
|
#endif
|
|
#if defined(TARGET_NR_mknodat)
|
|
case TARGET_NR_mknodat:
|
|
if (!(p = lock_user_string(arg2)))
|
|
return -TARGET_EFAULT;
|
|
ret = get_errno(mknodat(arg1, p, arg3, arg4));
|
|
unlock_user(p, arg2, 0);
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_chmod
|
|
case TARGET_NR_chmod:
|
|
if (!(p = lock_user_string(arg1)))
|
|
return -TARGET_EFAULT;
|
|
ret = get_errno(chmod(p, arg2));
|
|
unlock_user(p, arg1, 0);
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_lseek
|
|
case TARGET_NR_lseek:
|
|
return get_errno(lseek(arg1, arg2, arg3));
|
|
#endif
|
|
#if defined(TARGET_NR_getxpid) && defined(TARGET_ALPHA)
|
|
/* Alpha specific */
|
|
case TARGET_NR_getxpid:
|
|
cpu_env->ir[IR_A4] = getppid();
|
|
return get_errno(getpid());
|
|
#endif
|
|
#ifdef TARGET_NR_getpid
|
|
case TARGET_NR_getpid:
|
|
return get_errno(getpid());
|
|
#endif
|
|
case TARGET_NR_mount:
|
|
{
|
|
/* need to look at the data field */
|
|
void *p2, *p3;
|
|
|
|
if (arg1) {
|
|
p = lock_user_string(arg1);
|
|
if (!p) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
} else {
|
|
p = NULL;
|
|
}
|
|
|
|
p2 = lock_user_string(arg2);
|
|
if (!p2) {
|
|
if (arg1) {
|
|
unlock_user(p, arg1, 0);
|
|
}
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
if (arg3) {
|
|
p3 = lock_user_string(arg3);
|
|
if (!p3) {
|
|
if (arg1) {
|
|
unlock_user(p, arg1, 0);
|
|
}
|
|
unlock_user(p2, arg2, 0);
|
|
return -TARGET_EFAULT;
|
|
}
|
|
} else {
|
|
p3 = NULL;
|
|
}
|
|
|
|
/* FIXME - arg5 should be locked, but it isn't clear how to
|
|
* do that since it's not guaranteed to be a NULL-terminated
|
|
* string.
|
|
*/
|
|
if (!arg5) {
|
|
ret = mount(p, p2, p3, (unsigned long)arg4, NULL);
|
|
} else {
|
|
ret = mount(p, p2, p3, (unsigned long)arg4, g2h(cpu, arg5));
|
|
}
|
|
ret = get_errno(ret);
|
|
|
|
if (arg1) {
|
|
unlock_user(p, arg1, 0);
|
|
}
|
|
unlock_user(p2, arg2, 0);
|
|
if (arg3) {
|
|
unlock_user(p3, arg3, 0);
|
|
}
|
|
}
|
|
return ret;
|
|
#if defined(TARGET_NR_umount) || defined(TARGET_NR_oldumount)
|
|
#if defined(TARGET_NR_umount)
|
|
case TARGET_NR_umount:
|
|
#endif
|
|
#if defined(TARGET_NR_oldumount)
|
|
case TARGET_NR_oldumount:
|
|
#endif
|
|
if (!(p = lock_user_string(arg1)))
|
|
return -TARGET_EFAULT;
|
|
ret = get_errno(umount(p));
|
|
unlock_user(p, arg1, 0);
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_stime /* not on alpha */
|
|
case TARGET_NR_stime:
|
|
{
|
|
struct timespec ts;
|
|
ts.tv_nsec = 0;
|
|
if (get_user_sal(ts.tv_sec, arg1)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
return get_errno(clock_settime(CLOCK_REALTIME, &ts));
|
|
}
|
|
#endif
|
|
#ifdef TARGET_NR_alarm /* not on alpha */
|
|
case TARGET_NR_alarm:
|
|
return alarm(arg1);
|
|
#endif
|
|
#ifdef TARGET_NR_pause /* not on alpha */
|
|
case TARGET_NR_pause:
|
|
if (!block_signals()) {
|
|
sigsuspend(&((TaskState *)cpu->opaque)->signal_mask);
|
|
}
|
|
return -TARGET_EINTR;
|
|
#endif
|
|
#ifdef TARGET_NR_utime
|
|
case TARGET_NR_utime:
|
|
{
|
|
struct utimbuf tbuf, *host_tbuf;
|
|
struct target_utimbuf *target_tbuf;
|
|
if (arg2) {
|
|
if (!lock_user_struct(VERIFY_READ, target_tbuf, arg2, 1))
|
|
return -TARGET_EFAULT;
|
|
tbuf.actime = tswapal(target_tbuf->actime);
|
|
tbuf.modtime = tswapal(target_tbuf->modtime);
|
|
unlock_user_struct(target_tbuf, arg2, 0);
|
|
host_tbuf = &tbuf;
|
|
} else {
|
|
host_tbuf = NULL;
|
|
}
|
|
if (!(p = lock_user_string(arg1)))
|
|
return -TARGET_EFAULT;
|
|
ret = get_errno(utime(p, host_tbuf));
|
|
unlock_user(p, arg1, 0);
|
|
}
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_utimes
|
|
case TARGET_NR_utimes:
|
|
{
|
|
struct timeval *tvp, tv[2];
|
|
if (arg2) {
|
|
if (copy_from_user_timeval(&tv[0], arg2)
|
|
|| copy_from_user_timeval(&tv[1],
|
|
arg2 + sizeof(struct target_timeval)))
|
|
return -TARGET_EFAULT;
|
|
tvp = tv;
|
|
} else {
|
|
tvp = NULL;
|
|
}
|
|
if (!(p = lock_user_string(arg1)))
|
|
return -TARGET_EFAULT;
|
|
ret = get_errno(utimes(p, tvp));
|
|
unlock_user(p, arg1, 0);
|
|
}
|
|
return ret;
|
|
#endif
|
|
#if defined(TARGET_NR_futimesat)
|
|
case TARGET_NR_futimesat:
|
|
{
|
|
struct timeval *tvp, tv[2];
|
|
if (arg3) {
|
|
if (copy_from_user_timeval(&tv[0], arg3)
|
|
|| copy_from_user_timeval(&tv[1],
|
|
arg3 + sizeof(struct target_timeval)))
|
|
return -TARGET_EFAULT;
|
|
tvp = tv;
|
|
} else {
|
|
tvp = NULL;
|
|
}
|
|
if (!(p = lock_user_string(arg2))) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = get_errno(futimesat(arg1, path(p), tvp));
|
|
unlock_user(p, arg2, 0);
|
|
}
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_access
|
|
case TARGET_NR_access:
|
|
if (!(p = lock_user_string(arg1))) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = get_errno(access(path(p), arg2));
|
|
unlock_user(p, arg1, 0);
|
|
return ret;
|
|
#endif
|
|
#if defined(TARGET_NR_faccessat) && defined(__NR_faccessat)
|
|
case TARGET_NR_faccessat:
|
|
if (!(p = lock_user_string(arg2))) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = get_errno(faccessat(arg1, p, arg3, 0));
|
|
unlock_user(p, arg2, 0);
|
|
return ret;
|
|
#endif
|
|
#if defined(TARGET_NR_faccessat2)
|
|
case TARGET_NR_faccessat2:
|
|
if (!(p = lock_user_string(arg2))) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = get_errno(faccessat(arg1, p, arg3, arg4));
|
|
unlock_user(p, arg2, 0);
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_nice /* not on alpha */
|
|
case TARGET_NR_nice:
|
|
return get_errno(nice(arg1));
|
|
#endif
|
|
case TARGET_NR_sync:
|
|
sync();
|
|
return 0;
|
|
#if defined(TARGET_NR_syncfs) && defined(CONFIG_SYNCFS)
|
|
case TARGET_NR_syncfs:
|
|
return get_errno(syncfs(arg1));
|
|
#endif
|
|
case TARGET_NR_kill:
|
|
return get_errno(safe_kill(arg1, target_to_host_signal(arg2)));
|
|
#ifdef TARGET_NR_rename
|
|
case TARGET_NR_rename:
|
|
{
|
|
void *p2;
|
|
p = lock_user_string(arg1);
|
|
p2 = lock_user_string(arg2);
|
|
if (!p || !p2)
|
|
ret = -TARGET_EFAULT;
|
|
else
|
|
ret = get_errno(rename(p, p2));
|
|
unlock_user(p2, arg2, 0);
|
|
unlock_user(p, arg1, 0);
|
|
}
|
|
return ret;
|
|
#endif
|
|
#if defined(TARGET_NR_renameat)
|
|
case TARGET_NR_renameat:
|
|
{
|
|
void *p2;
|
|
p = lock_user_string(arg2);
|
|
p2 = lock_user_string(arg4);
|
|
if (!p || !p2)
|
|
ret = -TARGET_EFAULT;
|
|
else
|
|
ret = get_errno(renameat(arg1, p, arg3, p2));
|
|
unlock_user(p2, arg4, 0);
|
|
unlock_user(p, arg2, 0);
|
|
}
|
|
return ret;
|
|
#endif
|
|
#if defined(TARGET_NR_renameat2)
|
|
case TARGET_NR_renameat2:
|
|
{
|
|
void *p2;
|
|
p = lock_user_string(arg2);
|
|
p2 = lock_user_string(arg4);
|
|
if (!p || !p2) {
|
|
ret = -TARGET_EFAULT;
|
|
} else {
|
|
ret = get_errno(sys_renameat2(arg1, p, arg3, p2, arg5));
|
|
}
|
|
unlock_user(p2, arg4, 0);
|
|
unlock_user(p, arg2, 0);
|
|
}
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_mkdir
|
|
case TARGET_NR_mkdir:
|
|
if (!(p = lock_user_string(arg1)))
|
|
return -TARGET_EFAULT;
|
|
ret = get_errno(mkdir(p, arg2));
|
|
unlock_user(p, arg1, 0);
|
|
return ret;
|
|
#endif
|
|
#if defined(TARGET_NR_mkdirat)
|
|
case TARGET_NR_mkdirat:
|
|
if (!(p = lock_user_string(arg2)))
|
|
return -TARGET_EFAULT;
|
|
ret = get_errno(mkdirat(arg1, p, arg3));
|
|
unlock_user(p, arg2, 0);
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_rmdir
|
|
case TARGET_NR_rmdir:
|
|
if (!(p = lock_user_string(arg1)))
|
|
return -TARGET_EFAULT;
|
|
ret = get_errno(rmdir(p));
|
|
unlock_user(p, arg1, 0);
|
|
return ret;
|
|
#endif
|
|
case TARGET_NR_dup:
|
|
ret = get_errno(dup(arg1));
|
|
if (ret >= 0) {
|
|
fd_trans_dup(arg1, ret);
|
|
}
|
|
return ret;
|
|
#ifdef TARGET_NR_pipe
|
|
case TARGET_NR_pipe:
|
|
return do_pipe(cpu_env, arg1, 0, 0);
|
|
#endif
|
|
#ifdef TARGET_NR_pipe2
|
|
case TARGET_NR_pipe2:
|
|
return do_pipe(cpu_env, arg1,
|
|
target_to_host_bitmask(arg2, fcntl_flags_tbl), 1);
|
|
#endif
|
|
case TARGET_NR_times:
|
|
{
|
|
struct target_tms *tmsp;
|
|
struct tms tms;
|
|
ret = get_errno(times(&tms));
|
|
if (arg1) {
|
|
tmsp = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_tms), 0);
|
|
if (!tmsp)
|
|
return -TARGET_EFAULT;
|
|
tmsp->tms_utime = tswapal(host_to_target_clock_t(tms.tms_utime));
|
|
tmsp->tms_stime = tswapal(host_to_target_clock_t(tms.tms_stime));
|
|
tmsp->tms_cutime = tswapal(host_to_target_clock_t(tms.tms_cutime));
|
|
tmsp->tms_cstime = tswapal(host_to_target_clock_t(tms.tms_cstime));
|
|
}
|
|
if (!is_error(ret))
|
|
ret = host_to_target_clock_t(ret);
|
|
}
|
|
return ret;
|
|
case TARGET_NR_acct:
|
|
if (arg1 == 0) {
|
|
ret = get_errno(acct(NULL));
|
|
} else {
|
|
if (!(p = lock_user_string(arg1))) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = get_errno(acct(path(p)));
|
|
unlock_user(p, arg1, 0);
|
|
}
|
|
return ret;
|
|
#ifdef TARGET_NR_umount2
|
|
case TARGET_NR_umount2:
|
|
if (!(p = lock_user_string(arg1)))
|
|
return -TARGET_EFAULT;
|
|
ret = get_errno(umount2(p, arg2));
|
|
unlock_user(p, arg1, 0);
|
|
return ret;
|
|
#endif
|
|
case TARGET_NR_ioctl:
|
|
return do_ioctl(arg1, arg2, arg3);
|
|
#ifdef TARGET_NR_fcntl
|
|
case TARGET_NR_fcntl:
|
|
return do_fcntl(arg1, arg2, arg3);
|
|
#endif
|
|
case TARGET_NR_setpgid:
|
|
return get_errno(setpgid(arg1, arg2));
|
|
case TARGET_NR_umask:
|
|
return get_errno(umask(arg1));
|
|
case TARGET_NR_chroot:
|
|
if (!(p = lock_user_string(arg1)))
|
|
return -TARGET_EFAULT;
|
|
ret = get_errno(chroot(p));
|
|
unlock_user(p, arg1, 0);
|
|
return ret;
|
|
#ifdef TARGET_NR_dup2
|
|
case TARGET_NR_dup2:
|
|
ret = get_errno(dup2(arg1, arg2));
|
|
if (ret >= 0) {
|
|
fd_trans_dup(arg1, arg2);
|
|
}
|
|
return ret;
|
|
#endif
|
|
#if defined(CONFIG_DUP3) && defined(TARGET_NR_dup3)
|
|
case TARGET_NR_dup3:
|
|
{
|
|
int host_flags;
|
|
|
|
if ((arg3 & ~TARGET_O_CLOEXEC) != 0) {
|
|
return -EINVAL;
|
|
}
|
|
host_flags = target_to_host_bitmask(arg3, fcntl_flags_tbl);
|
|
ret = get_errno(dup3(arg1, arg2, host_flags));
|
|
if (ret >= 0) {
|
|
fd_trans_dup(arg1, arg2);
|
|
}
|
|
return ret;
|
|
}
|
|
#endif
|
|
#ifdef TARGET_NR_getppid /* not on alpha */
|
|
case TARGET_NR_getppid:
|
|
return get_errno(getppid());
|
|
#endif
|
|
#ifdef TARGET_NR_getpgrp
|
|
case TARGET_NR_getpgrp:
|
|
return get_errno(getpgrp());
|
|
#endif
|
|
case TARGET_NR_setsid:
|
|
return get_errno(setsid());
|
|
#ifdef TARGET_NR_sigaction
|
|
case TARGET_NR_sigaction:
|
|
{
|
|
#if defined(TARGET_MIPS)
|
|
struct target_sigaction act, oact, *pact, *old_act;
|
|
|
|
if (arg2) {
|
|
if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
|
|
return -TARGET_EFAULT;
|
|
act._sa_handler = old_act->_sa_handler;
|
|
target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]);
|
|
act.sa_flags = old_act->sa_flags;
|
|
unlock_user_struct(old_act, arg2, 0);
|
|
pact = &act;
|
|
} else {
|
|
pact = NULL;
|
|
}
|
|
|
|
ret = get_errno(do_sigaction(arg1, pact, &oact, 0));
|
|
|
|
if (!is_error(ret) && arg3) {
|
|
if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
|
|
return -TARGET_EFAULT;
|
|
old_act->_sa_handler = oact._sa_handler;
|
|
old_act->sa_flags = oact.sa_flags;
|
|
old_act->sa_mask.sig[0] = oact.sa_mask.sig[0];
|
|
old_act->sa_mask.sig[1] = 0;
|
|
old_act->sa_mask.sig[2] = 0;
|
|
old_act->sa_mask.sig[3] = 0;
|
|
unlock_user_struct(old_act, arg3, 1);
|
|
}
|
|
#else
|
|
struct target_old_sigaction *old_act;
|
|
struct target_sigaction act, oact, *pact;
|
|
if (arg2) {
|
|
if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
|
|
return -TARGET_EFAULT;
|
|
act._sa_handler = old_act->_sa_handler;
|
|
target_siginitset(&act.sa_mask, old_act->sa_mask);
|
|
act.sa_flags = old_act->sa_flags;
|
|
#ifdef TARGET_ARCH_HAS_SA_RESTORER
|
|
act.sa_restorer = old_act->sa_restorer;
|
|
#endif
|
|
unlock_user_struct(old_act, arg2, 0);
|
|
pact = &act;
|
|
} else {
|
|
pact = NULL;
|
|
}
|
|
ret = get_errno(do_sigaction(arg1, pact, &oact, 0));
|
|
if (!is_error(ret) && arg3) {
|
|
if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
|
|
return -TARGET_EFAULT;
|
|
old_act->_sa_handler = oact._sa_handler;
|
|
old_act->sa_mask = oact.sa_mask.sig[0];
|
|
old_act->sa_flags = oact.sa_flags;
|
|
#ifdef TARGET_ARCH_HAS_SA_RESTORER
|
|
old_act->sa_restorer = oact.sa_restorer;
|
|
#endif
|
|
unlock_user_struct(old_act, arg3, 1);
|
|
}
|
|
#endif
|
|
}
|
|
return ret;
|
|
#endif
|
|
case TARGET_NR_rt_sigaction:
|
|
{
|
|
/*
|
|
* For Alpha and SPARC this is a 5 argument syscall, with
|
|
* a 'restorer' parameter which must be copied into the
|
|
* sa_restorer field of the sigaction struct.
|
|
* For Alpha that 'restorer' is arg5; for SPARC it is arg4,
|
|
* and arg5 is the sigsetsize.
|
|
*/
|
|
#if defined(TARGET_ALPHA)
|
|
target_ulong sigsetsize = arg4;
|
|
target_ulong restorer = arg5;
|
|
#elif defined(TARGET_SPARC)
|
|
target_ulong restorer = arg4;
|
|
target_ulong sigsetsize = arg5;
|
|
#else
|
|
target_ulong sigsetsize = arg4;
|
|
target_ulong restorer = 0;
|
|
#endif
|
|
struct target_sigaction *act = NULL;
|
|
struct target_sigaction *oact = NULL;
|
|
|
|
if (sigsetsize != sizeof(target_sigset_t)) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
if (arg2 && !lock_user_struct(VERIFY_READ, act, arg2, 1)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
if (arg3 && !lock_user_struct(VERIFY_WRITE, oact, arg3, 0)) {
|
|
ret = -TARGET_EFAULT;
|
|
} else {
|
|
ret = get_errno(do_sigaction(arg1, act, oact, restorer));
|
|
if (oact) {
|
|
unlock_user_struct(oact, arg3, 1);
|
|
}
|
|
}
|
|
if (act) {
|
|
unlock_user_struct(act, arg2, 0);
|
|
}
|
|
}
|
|
return ret;
|
|
#ifdef TARGET_NR_sgetmask /* not on alpha */
|
|
case TARGET_NR_sgetmask:
|
|
{
|
|
sigset_t cur_set;
|
|
abi_ulong target_set;
|
|
ret = do_sigprocmask(0, NULL, &cur_set);
|
|
if (!ret) {
|
|
host_to_target_old_sigset(&target_set, &cur_set);
|
|
ret = target_set;
|
|
}
|
|
}
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_ssetmask /* not on alpha */
|
|
case TARGET_NR_ssetmask:
|
|
{
|
|
sigset_t set, oset;
|
|
abi_ulong target_set = arg1;
|
|
target_to_host_old_sigset(&set, &target_set);
|
|
ret = do_sigprocmask(SIG_SETMASK, &set, &oset);
|
|
if (!ret) {
|
|
host_to_target_old_sigset(&target_set, &oset);
|
|
ret = target_set;
|
|
}
|
|
}
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_sigprocmask
|
|
case TARGET_NR_sigprocmask:
|
|
{
|
|
#if defined(TARGET_ALPHA)
|
|
sigset_t set, oldset;
|
|
abi_ulong mask;
|
|
int how;
|
|
|
|
switch (arg1) {
|
|
case TARGET_SIG_BLOCK:
|
|
how = SIG_BLOCK;
|
|
break;
|
|
case TARGET_SIG_UNBLOCK:
|
|
how = SIG_UNBLOCK;
|
|
break;
|
|
case TARGET_SIG_SETMASK:
|
|
how = SIG_SETMASK;
|
|
break;
|
|
default:
|
|
return -TARGET_EINVAL;
|
|
}
|
|
mask = arg2;
|
|
target_to_host_old_sigset(&set, &mask);
|
|
|
|
ret = do_sigprocmask(how, &set, &oldset);
|
|
if (!is_error(ret)) {
|
|
host_to_target_old_sigset(&mask, &oldset);
|
|
ret = mask;
|
|
cpu_env->ir[IR_V0] = 0; /* force no error */
|
|
}
|
|
#else
|
|
sigset_t set, oldset, *set_ptr;
|
|
int how;
|
|
|
|
if (arg2) {
|
|
p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1);
|
|
if (!p) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
target_to_host_old_sigset(&set, p);
|
|
unlock_user(p, arg2, 0);
|
|
set_ptr = &set;
|
|
switch (arg1) {
|
|
case TARGET_SIG_BLOCK:
|
|
how = SIG_BLOCK;
|
|
break;
|
|
case TARGET_SIG_UNBLOCK:
|
|
how = SIG_UNBLOCK;
|
|
break;
|
|
case TARGET_SIG_SETMASK:
|
|
how = SIG_SETMASK;
|
|
break;
|
|
default:
|
|
return -TARGET_EINVAL;
|
|
}
|
|
} else {
|
|
how = 0;
|
|
set_ptr = NULL;
|
|
}
|
|
ret = do_sigprocmask(how, set_ptr, &oldset);
|
|
if (!is_error(ret) && arg3) {
|
|
if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
|
|
return -TARGET_EFAULT;
|
|
host_to_target_old_sigset(p, &oldset);
|
|
unlock_user(p, arg3, sizeof(target_sigset_t));
|
|
}
|
|
#endif
|
|
}
|
|
return ret;
|
|
#endif
|
|
case TARGET_NR_rt_sigprocmask:
|
|
{
|
|
int how = arg1;
|
|
sigset_t set, oldset, *set_ptr;
|
|
|
|
if (arg4 != sizeof(target_sigset_t)) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
if (arg2) {
|
|
p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1);
|
|
if (!p) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
target_to_host_sigset(&set, p);
|
|
unlock_user(p, arg2, 0);
|
|
set_ptr = &set;
|
|
switch(how) {
|
|
case TARGET_SIG_BLOCK:
|
|
how = SIG_BLOCK;
|
|
break;
|
|
case TARGET_SIG_UNBLOCK:
|
|
how = SIG_UNBLOCK;
|
|
break;
|
|
case TARGET_SIG_SETMASK:
|
|
how = SIG_SETMASK;
|
|
break;
|
|
default:
|
|
return -TARGET_EINVAL;
|
|
}
|
|
} else {
|
|
how = 0;
|
|
set_ptr = NULL;
|
|
}
|
|
ret = do_sigprocmask(how, set_ptr, &oldset);
|
|
if (!is_error(ret) && arg3) {
|
|
if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
|
|
return -TARGET_EFAULT;
|
|
host_to_target_sigset(p, &oldset);
|
|
unlock_user(p, arg3, sizeof(target_sigset_t));
|
|
}
|
|
}
|
|
return ret;
|
|
#ifdef TARGET_NR_sigpending
|
|
case TARGET_NR_sigpending:
|
|
{
|
|
sigset_t set;
|
|
ret = get_errno(sigpending(&set));
|
|
if (!is_error(ret)) {
|
|
if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
|
|
return -TARGET_EFAULT;
|
|
host_to_target_old_sigset(p, &set);
|
|
unlock_user(p, arg1, sizeof(target_sigset_t));
|
|
}
|
|
}
|
|
return ret;
|
|
#endif
|
|
case TARGET_NR_rt_sigpending:
|
|
{
|
|
sigset_t set;
|
|
|
|
/* Yes, this check is >, not != like most. We follow the kernel's
|
|
* logic and it does it like this because it implements
|
|
* NR_sigpending through the same code path, and in that case
|
|
* the old_sigset_t is smaller in size.
|
|
*/
|
|
if (arg2 > sizeof(target_sigset_t)) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
ret = get_errno(sigpending(&set));
|
|
if (!is_error(ret)) {
|
|
if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
|
|
return -TARGET_EFAULT;
|
|
host_to_target_sigset(p, &set);
|
|
unlock_user(p, arg1, sizeof(target_sigset_t));
|
|
}
|
|
}
|
|
return ret;
|
|
#ifdef TARGET_NR_sigsuspend
|
|
case TARGET_NR_sigsuspend:
|
|
{
|
|
sigset_t *set;
|
|
|
|
#if defined(TARGET_ALPHA)
|
|
TaskState *ts = cpu->opaque;
|
|
/* target_to_host_old_sigset will bswap back */
|
|
abi_ulong mask = tswapal(arg1);
|
|
set = &ts->sigsuspend_mask;
|
|
target_to_host_old_sigset(set, &mask);
|
|
#else
|
|
ret = process_sigsuspend_mask(&set, arg1, sizeof(target_sigset_t));
|
|
if (ret != 0) {
|
|
return ret;
|
|
}
|
|
#endif
|
|
ret = get_errno(safe_rt_sigsuspend(set, SIGSET_T_SIZE));
|
|
finish_sigsuspend_mask(ret);
|
|
}
|
|
return ret;
|
|
#endif
|
|
case TARGET_NR_rt_sigsuspend:
|
|
{
|
|
sigset_t *set;
|
|
|
|
ret = process_sigsuspend_mask(&set, arg1, arg2);
|
|
if (ret != 0) {
|
|
return ret;
|
|
}
|
|
ret = get_errno(safe_rt_sigsuspend(set, SIGSET_T_SIZE));
|
|
finish_sigsuspend_mask(ret);
|
|
}
|
|
return ret;
|
|
#ifdef TARGET_NR_rt_sigtimedwait
|
|
case TARGET_NR_rt_sigtimedwait:
|
|
{
|
|
sigset_t set;
|
|
struct timespec uts, *puts;
|
|
siginfo_t uinfo;
|
|
|
|
if (arg4 != sizeof(target_sigset_t)) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
|
|
return -TARGET_EFAULT;
|
|
target_to_host_sigset(&set, p);
|
|
unlock_user(p, arg1, 0);
|
|
if (arg3) {
|
|
puts = &uts;
|
|
if (target_to_host_timespec(puts, arg3)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
} else {
|
|
puts = NULL;
|
|
}
|
|
ret = get_errno(safe_rt_sigtimedwait(&set, &uinfo, puts,
|
|
SIGSET_T_SIZE));
|
|
if (!is_error(ret)) {
|
|
if (arg2) {
|
|
p = lock_user(VERIFY_WRITE, arg2, sizeof(target_siginfo_t),
|
|
0);
|
|
if (!p) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
host_to_target_siginfo(p, &uinfo);
|
|
unlock_user(p, arg2, sizeof(target_siginfo_t));
|
|
}
|
|
ret = host_to_target_signal(ret);
|
|
}
|
|
}
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_rt_sigtimedwait_time64
|
|
case TARGET_NR_rt_sigtimedwait_time64:
|
|
{
|
|
sigset_t set;
|
|
struct timespec uts, *puts;
|
|
siginfo_t uinfo;
|
|
|
|
if (arg4 != sizeof(target_sigset_t)) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1);
|
|
if (!p) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
target_to_host_sigset(&set, p);
|
|
unlock_user(p, arg1, 0);
|
|
if (arg3) {
|
|
puts = &uts;
|
|
if (target_to_host_timespec64(puts, arg3)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
} else {
|
|
puts = NULL;
|
|
}
|
|
ret = get_errno(safe_rt_sigtimedwait(&set, &uinfo, puts,
|
|
SIGSET_T_SIZE));
|
|
if (!is_error(ret)) {
|
|
if (arg2) {
|
|
p = lock_user(VERIFY_WRITE, arg2,
|
|
sizeof(target_siginfo_t), 0);
|
|
if (!p) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
host_to_target_siginfo(p, &uinfo);
|
|
unlock_user(p, arg2, sizeof(target_siginfo_t));
|
|
}
|
|
ret = host_to_target_signal(ret);
|
|
}
|
|
}
|
|
return ret;
|
|
#endif
|
|
case TARGET_NR_rt_sigqueueinfo:
|
|
{
|
|
siginfo_t uinfo;
|
|
|
|
p = lock_user(VERIFY_READ, arg3, sizeof(target_siginfo_t), 1);
|
|
if (!p) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
target_to_host_siginfo(&uinfo, p);
|
|
unlock_user(p, arg3, 0);
|
|
ret = get_errno(sys_rt_sigqueueinfo(arg1, target_to_host_signal(arg2), &uinfo));
|
|
}
|
|
return ret;
|
|
case TARGET_NR_rt_tgsigqueueinfo:
|
|
{
|
|
siginfo_t uinfo;
|
|
|
|
p = lock_user(VERIFY_READ, arg4, sizeof(target_siginfo_t), 1);
|
|
if (!p) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
target_to_host_siginfo(&uinfo, p);
|
|
unlock_user(p, arg4, 0);
|
|
ret = get_errno(sys_rt_tgsigqueueinfo(arg1, arg2, target_to_host_signal(arg3), &uinfo));
|
|
}
|
|
return ret;
|
|
#ifdef TARGET_NR_sigreturn
|
|
case TARGET_NR_sigreturn:
|
|
if (block_signals()) {
|
|
return -QEMU_ERESTARTSYS;
|
|
}
|
|
return do_sigreturn(cpu_env);
|
|
#endif
|
|
case TARGET_NR_rt_sigreturn:
|
|
if (block_signals()) {
|
|
return -QEMU_ERESTARTSYS;
|
|
}
|
|
return do_rt_sigreturn(cpu_env);
|
|
case TARGET_NR_sethostname:
|
|
if (!(p = lock_user_string(arg1)))
|
|
return -TARGET_EFAULT;
|
|
ret = get_errno(sethostname(p, arg2));
|
|
unlock_user(p, arg1, 0);
|
|
return ret;
|
|
#ifdef TARGET_NR_setrlimit
|
|
case TARGET_NR_setrlimit:
|
|
{
|
|
int resource = target_to_host_resource(arg1);
|
|
struct target_rlimit *target_rlim;
|
|
struct rlimit rlim;
|
|
if (!lock_user_struct(VERIFY_READ, target_rlim, arg2, 1))
|
|
return -TARGET_EFAULT;
|
|
rlim.rlim_cur = target_to_host_rlim(target_rlim->rlim_cur);
|
|
rlim.rlim_max = target_to_host_rlim(target_rlim->rlim_max);
|
|
unlock_user_struct(target_rlim, arg2, 0);
|
|
/*
|
|
* If we just passed through resource limit settings for memory then
|
|
* they would also apply to QEMU's own allocations, and QEMU will
|
|
* crash or hang or die if its allocations fail. Ideally we would
|
|
* track the guest allocations in QEMU and apply the limits ourselves.
|
|
* For now, just tell the guest the call succeeded but don't actually
|
|
* limit anything.
|
|
*/
|
|
if (resource != RLIMIT_AS &&
|
|
resource != RLIMIT_DATA &&
|
|
resource != RLIMIT_STACK) {
|
|
return get_errno(setrlimit(resource, &rlim));
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
#endif
|
|
#ifdef TARGET_NR_getrlimit
|
|
case TARGET_NR_getrlimit:
|
|
{
|
|
int resource = target_to_host_resource(arg1);
|
|
struct target_rlimit *target_rlim;
|
|
struct rlimit rlim;
|
|
|
|
ret = get_errno(getrlimit(resource, &rlim));
|
|
if (!is_error(ret)) {
|
|
if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
|
|
return -TARGET_EFAULT;
|
|
target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur);
|
|
target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max);
|
|
unlock_user_struct(target_rlim, arg2, 1);
|
|
}
|
|
}
|
|
return ret;
|
|
#endif
|
|
case TARGET_NR_getrusage:
|
|
{
|
|
struct rusage rusage;
|
|
ret = get_errno(getrusage(arg1, &rusage));
|
|
if (!is_error(ret)) {
|
|
ret = host_to_target_rusage(arg2, &rusage);
|
|
}
|
|
}
|
|
return ret;
|
|
#if defined(TARGET_NR_gettimeofday)
|
|
case TARGET_NR_gettimeofday:
|
|
{
|
|
struct timeval tv;
|
|
struct timezone tz;
|
|
|
|
ret = get_errno(gettimeofday(&tv, &tz));
|
|
if (!is_error(ret)) {
|
|
if (arg1 && copy_to_user_timeval(arg1, &tv)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
if (arg2 && copy_to_user_timezone(arg2, &tz)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
}
|
|
return ret;
|
|
#endif
|
|
#if defined(TARGET_NR_settimeofday)
|
|
case TARGET_NR_settimeofday:
|
|
{
|
|
struct timeval tv, *ptv = NULL;
|
|
struct timezone tz, *ptz = NULL;
|
|
|
|
if (arg1) {
|
|
if (copy_from_user_timeval(&tv, arg1)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ptv = &tv;
|
|
}
|
|
|
|
if (arg2) {
|
|
if (copy_from_user_timezone(&tz, arg2)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ptz = &tz;
|
|
}
|
|
|
|
return get_errno(settimeofday(ptv, ptz));
|
|
}
|
|
#endif
|
|
#if defined(TARGET_NR_select)
|
|
case TARGET_NR_select:
|
|
#if defined(TARGET_WANT_NI_OLD_SELECT)
|
|
/* some architectures used to have old_select here
|
|
* but now ENOSYS it.
|
|
*/
|
|
ret = -TARGET_ENOSYS;
|
|
#elif defined(TARGET_WANT_OLD_SYS_SELECT)
|
|
ret = do_old_select(arg1);
|
|
#else
|
|
ret = do_select(arg1, arg2, arg3, arg4, arg5);
|
|
#endif
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_pselect6
|
|
case TARGET_NR_pselect6:
|
|
return do_pselect6(arg1, arg2, arg3, arg4, arg5, arg6, false);
|
|
#endif
|
|
#ifdef TARGET_NR_pselect6_time64
|
|
case TARGET_NR_pselect6_time64:
|
|
return do_pselect6(arg1, arg2, arg3, arg4, arg5, arg6, true);
|
|
#endif
|
|
#ifdef TARGET_NR_symlink
|
|
case TARGET_NR_symlink:
|
|
{
|
|
void *p2;
|
|
p = lock_user_string(arg1);
|
|
p2 = lock_user_string(arg2);
|
|
if (!p || !p2)
|
|
ret = -TARGET_EFAULT;
|
|
else
|
|
ret = get_errno(symlink(p, p2));
|
|
unlock_user(p2, arg2, 0);
|
|
unlock_user(p, arg1, 0);
|
|
}
|
|
return ret;
|
|
#endif
|
|
#if defined(TARGET_NR_symlinkat)
|
|
case TARGET_NR_symlinkat:
|
|
{
|
|
void *p2;
|
|
p = lock_user_string(arg1);
|
|
p2 = lock_user_string(arg3);
|
|
if (!p || !p2)
|
|
ret = -TARGET_EFAULT;
|
|
else
|
|
ret = get_errno(symlinkat(p, arg2, p2));
|
|
unlock_user(p2, arg3, 0);
|
|
unlock_user(p, arg1, 0);
|
|
}
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_readlink
|
|
case TARGET_NR_readlink:
|
|
{
|
|
void *p2;
|
|
p = lock_user_string(arg1);
|
|
p2 = lock_user(VERIFY_WRITE, arg2, arg3, 0);
|
|
if (!p || !p2) {
|
|
ret = -TARGET_EFAULT;
|
|
} else if (!arg3) {
|
|
/* Short circuit this for the magic exe check. */
|
|
ret = -TARGET_EINVAL;
|
|
} else if (is_proc_myself((const char *)p, "exe")) {
|
|
char real[PATH_MAX], *temp;
|
|
temp = realpath(exec_path, real);
|
|
/* Return value is # of bytes that we wrote to the buffer. */
|
|
if (temp == NULL) {
|
|
ret = get_errno(-1);
|
|
} else {
|
|
/* Don't worry about sign mismatch as earlier mapping
|
|
* logic would have thrown a bad address error. */
|
|
ret = MIN(strlen(real), arg3);
|
|
/* We cannot NUL terminate the string. */
|
|
memcpy(p2, real, ret);
|
|
}
|
|
} else {
|
|
ret = get_errno(readlink(path(p), p2, arg3));
|
|
}
|
|
unlock_user(p2, arg2, ret);
|
|
unlock_user(p, arg1, 0);
|
|
}
|
|
return ret;
|
|
#endif
|
|
#if defined(TARGET_NR_readlinkat)
|
|
case TARGET_NR_readlinkat:
|
|
{
|
|
void *p2;
|
|
p = lock_user_string(arg2);
|
|
p2 = lock_user(VERIFY_WRITE, arg3, arg4, 0);
|
|
if (!p || !p2) {
|
|
ret = -TARGET_EFAULT;
|
|
} else if (!arg4) {
|
|
/* Short circuit this for the magic exe check. */
|
|
ret = -TARGET_EINVAL;
|
|
} else if (is_proc_myself((const char *)p, "exe")) {
|
|
char real[PATH_MAX], *temp;
|
|
temp = realpath(exec_path, real);
|
|
/* Return value is # of bytes that we wrote to the buffer. */
|
|
if (temp == NULL) {
|
|
ret = get_errno(-1);
|
|
} else {
|
|
/* Don't worry about sign mismatch as earlier mapping
|
|
* logic would have thrown a bad address error. */
|
|
ret = MIN(strlen(real), arg4);
|
|
/* We cannot NUL terminate the string. */
|
|
memcpy(p2, real, ret);
|
|
}
|
|
} else {
|
|
ret = get_errno(readlinkat(arg1, path(p), p2, arg4));
|
|
}
|
|
unlock_user(p2, arg3, ret);
|
|
unlock_user(p, arg2, 0);
|
|
}
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_swapon
|
|
case TARGET_NR_swapon:
|
|
if (!(p = lock_user_string(arg1)))
|
|
return -TARGET_EFAULT;
|
|
ret = get_errno(swapon(p, arg2));
|
|
unlock_user(p, arg1, 0);
|
|
return ret;
|
|
#endif
|
|
case TARGET_NR_reboot:
|
|
if (arg3 == LINUX_REBOOT_CMD_RESTART2) {
|
|
/* arg4 must be ignored in all other cases */
|
|
p = lock_user_string(arg4);
|
|
if (!p) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = get_errno(reboot(arg1, arg2, arg3, p));
|
|
unlock_user(p, arg4, 0);
|
|
} else {
|
|
ret = get_errno(reboot(arg1, arg2, arg3, NULL));
|
|
}
|
|
return ret;
|
|
#ifdef TARGET_NR_mmap
|
|
case TARGET_NR_mmap:
|
|
#if (defined(TARGET_I386) && defined(TARGET_ABI32)) || \
|
|
(defined(TARGET_ARM) && defined(TARGET_ABI32)) || \
|
|
defined(TARGET_M68K) || defined(TARGET_CRIS) || defined(TARGET_MICROBLAZE) \
|
|
|| defined(TARGET_S390X)
|
|
{
|
|
abi_ulong *v;
|
|
abi_ulong v1, v2, v3, v4, v5, v6;
|
|
if (!(v = lock_user(VERIFY_READ, arg1, 6 * sizeof(abi_ulong), 1)))
|
|
return -TARGET_EFAULT;
|
|
v1 = tswapal(v[0]);
|
|
v2 = tswapal(v[1]);
|
|
v3 = tswapal(v[2]);
|
|
v4 = tswapal(v[3]);
|
|
v5 = tswapal(v[4]);
|
|
v6 = tswapal(v[5]);
|
|
unlock_user(v, arg1, 0);
|
|
ret = get_errno(target_mmap(v1, v2, v3,
|
|
target_to_host_bitmask(v4, mmap_flags_tbl),
|
|
v5, v6));
|
|
}
|
|
#else
|
|
/* mmap pointers are always untagged */
|
|
ret = get_errno(target_mmap(arg1, arg2, arg3,
|
|
target_to_host_bitmask(arg4, mmap_flags_tbl),
|
|
arg5,
|
|
arg6));
|
|
#endif
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_mmap2
|
|
case TARGET_NR_mmap2:
|
|
#ifndef MMAP_SHIFT
|
|
#define MMAP_SHIFT 12
|
|
#endif
|
|
ret = target_mmap(arg1, arg2, arg3,
|
|
target_to_host_bitmask(arg4, mmap_flags_tbl),
|
|
arg5, arg6 << MMAP_SHIFT);
|
|
return get_errno(ret);
|
|
#endif
|
|
case TARGET_NR_munmap:
|
|
arg1 = cpu_untagged_addr(cpu, arg1);
|
|
return get_errno(target_munmap(arg1, arg2));
|
|
case TARGET_NR_mprotect:
|
|
arg1 = cpu_untagged_addr(cpu, arg1);
|
|
{
|
|
TaskState *ts = cpu->opaque;
|
|
/* Special hack to detect libc making the stack executable. */
|
|
if ((arg3 & PROT_GROWSDOWN)
|
|
&& arg1 >= ts->info->stack_limit
|
|
&& arg1 <= ts->info->start_stack) {
|
|
arg3 &= ~PROT_GROWSDOWN;
|
|
arg2 = arg2 + arg1 - ts->info->stack_limit;
|
|
arg1 = ts->info->stack_limit;
|
|
}
|
|
}
|
|
return get_errno(target_mprotect(arg1, arg2, arg3));
|
|
#ifdef TARGET_NR_mremap
|
|
case TARGET_NR_mremap:
|
|
arg1 = cpu_untagged_addr(cpu, arg1);
|
|
/* mremap new_addr (arg5) is always untagged */
|
|
return get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
|
|
#endif
|
|
/* ??? msync/mlock/munlock are broken for softmmu. */
|
|
#ifdef TARGET_NR_msync
|
|
case TARGET_NR_msync:
|
|
return get_errno(msync(g2h(cpu, arg1), arg2, arg3));
|
|
#endif
|
|
#ifdef TARGET_NR_mlock
|
|
case TARGET_NR_mlock:
|
|
return get_errno(mlock(g2h(cpu, arg1), arg2));
|
|
#endif
|
|
#ifdef TARGET_NR_munlock
|
|
case TARGET_NR_munlock:
|
|
return get_errno(munlock(g2h(cpu, arg1), arg2));
|
|
#endif
|
|
#ifdef TARGET_NR_mlockall
|
|
case TARGET_NR_mlockall:
|
|
return get_errno(mlockall(target_to_host_mlockall_arg(arg1)));
|
|
#endif
|
|
#ifdef TARGET_NR_munlockall
|
|
case TARGET_NR_munlockall:
|
|
return get_errno(munlockall());
|
|
#endif
|
|
#ifdef TARGET_NR_truncate
|
|
case TARGET_NR_truncate:
|
|
if (!(p = lock_user_string(arg1)))
|
|
return -TARGET_EFAULT;
|
|
ret = get_errno(truncate(p, arg2));
|
|
unlock_user(p, arg1, 0);
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_ftruncate
|
|
case TARGET_NR_ftruncate:
|
|
return get_errno(ftruncate(arg1, arg2));
|
|
#endif
|
|
case TARGET_NR_fchmod:
|
|
return get_errno(fchmod(arg1, arg2));
|
|
#if defined(TARGET_NR_fchmodat)
|
|
case TARGET_NR_fchmodat:
|
|
if (!(p = lock_user_string(arg2)))
|
|
return -TARGET_EFAULT;
|
|
ret = get_errno(fchmodat(arg1, p, arg3, 0));
|
|
unlock_user(p, arg2, 0);
|
|
return ret;
|
|
#endif
|
|
case TARGET_NR_getpriority:
|
|
/* Note that negative values are valid for getpriority, so we must
|
|
differentiate based on errno settings. */
|
|
errno = 0;
|
|
ret = getpriority(arg1, arg2);
|
|
if (ret == -1 && errno != 0) {
|
|
return -host_to_target_errno(errno);
|
|
}
|
|
#ifdef TARGET_ALPHA
|
|
/* Return value is the unbiased priority. Signal no error. */
|
|
cpu_env->ir[IR_V0] = 0;
|
|
#else
|
|
/* Return value is a biased priority to avoid negative numbers. */
|
|
ret = 20 - ret;
|
|
#endif
|
|
return ret;
|
|
case TARGET_NR_setpriority:
|
|
return get_errno(setpriority(arg1, arg2, arg3));
|
|
#ifdef TARGET_NR_statfs
|
|
case TARGET_NR_statfs:
|
|
if (!(p = lock_user_string(arg1))) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = get_errno(statfs(path(p), &stfs));
|
|
unlock_user(p, arg1, 0);
|
|
convert_statfs:
|
|
if (!is_error(ret)) {
|
|
struct target_statfs *target_stfs;
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg2, 0))
|
|
return -TARGET_EFAULT;
|
|
__put_user(stfs.f_type, &target_stfs->f_type);
|
|
__put_user(stfs.f_bsize, &target_stfs->f_bsize);
|
|
__put_user(stfs.f_blocks, &target_stfs->f_blocks);
|
|
__put_user(stfs.f_bfree, &target_stfs->f_bfree);
|
|
__put_user(stfs.f_bavail, &target_stfs->f_bavail);
|
|
__put_user(stfs.f_files, &target_stfs->f_files);
|
|
__put_user(stfs.f_ffree, &target_stfs->f_ffree);
|
|
__put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
|
|
__put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
|
|
__put_user(stfs.f_namelen, &target_stfs->f_namelen);
|
|
__put_user(stfs.f_frsize, &target_stfs->f_frsize);
|
|
#ifdef _STATFS_F_FLAGS
|
|
__put_user(stfs.f_flags, &target_stfs->f_flags);
|
|
#else
|
|
__put_user(0, &target_stfs->f_flags);
|
|
#endif
|
|
memset(target_stfs->f_spare, 0, sizeof(target_stfs->f_spare));
|
|
unlock_user_struct(target_stfs, arg2, 1);
|
|
}
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_fstatfs
|
|
case TARGET_NR_fstatfs:
|
|
ret = get_errno(fstatfs(arg1, &stfs));
|
|
goto convert_statfs;
|
|
#endif
|
|
#ifdef TARGET_NR_statfs64
|
|
case TARGET_NR_statfs64:
|
|
if (!(p = lock_user_string(arg1))) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = get_errno(statfs(path(p), &stfs));
|
|
unlock_user(p, arg1, 0);
|
|
convert_statfs64:
|
|
if (!is_error(ret)) {
|
|
struct target_statfs64 *target_stfs;
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg3, 0))
|
|
return -TARGET_EFAULT;
|
|
__put_user(stfs.f_type, &target_stfs->f_type);
|
|
__put_user(stfs.f_bsize, &target_stfs->f_bsize);
|
|
__put_user(stfs.f_blocks, &target_stfs->f_blocks);
|
|
__put_user(stfs.f_bfree, &target_stfs->f_bfree);
|
|
__put_user(stfs.f_bavail, &target_stfs->f_bavail);
|
|
__put_user(stfs.f_files, &target_stfs->f_files);
|
|
__put_user(stfs.f_ffree, &target_stfs->f_ffree);
|
|
__put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
|
|
__put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
|
|
__put_user(stfs.f_namelen, &target_stfs->f_namelen);
|
|
__put_user(stfs.f_frsize, &target_stfs->f_frsize);
|
|
#ifdef _STATFS_F_FLAGS
|
|
__put_user(stfs.f_flags, &target_stfs->f_flags);
|
|
#else
|
|
__put_user(0, &target_stfs->f_flags);
|
|
#endif
|
|
memset(target_stfs->f_spare, 0, sizeof(target_stfs->f_spare));
|
|
unlock_user_struct(target_stfs, arg3, 1);
|
|
}
|
|
return ret;
|
|
case TARGET_NR_fstatfs64:
|
|
ret = get_errno(fstatfs(arg1, &stfs));
|
|
goto convert_statfs64;
|
|
#endif
|
|
#ifdef TARGET_NR_socketcall
|
|
case TARGET_NR_socketcall:
|
|
return do_socketcall(arg1, arg2);
|
|
#endif
|
|
#ifdef TARGET_NR_accept
|
|
case TARGET_NR_accept:
|
|
return do_accept4(arg1, arg2, arg3, 0);
|
|
#endif
|
|
#ifdef TARGET_NR_accept4
|
|
case TARGET_NR_accept4:
|
|
return do_accept4(arg1, arg2, arg3, arg4);
|
|
#endif
|
|
#ifdef TARGET_NR_bind
|
|
case TARGET_NR_bind:
|
|
return do_bind(arg1, arg2, arg3);
|
|
#endif
|
|
#ifdef TARGET_NR_connect
|
|
case TARGET_NR_connect:
|
|
return do_connect(arg1, arg2, arg3);
|
|
#endif
|
|
#ifdef TARGET_NR_getpeername
|
|
case TARGET_NR_getpeername:
|
|
return do_getpeername(arg1, arg2, arg3);
|
|
#endif
|
|
#ifdef TARGET_NR_getsockname
|
|
case TARGET_NR_getsockname:
|
|
return do_getsockname(arg1, arg2, arg3);
|
|
#endif
|
|
#ifdef TARGET_NR_getsockopt
|
|
case TARGET_NR_getsockopt:
|
|
return do_getsockopt(arg1, arg2, arg3, arg4, arg5);
|
|
#endif
|
|
#ifdef TARGET_NR_listen
|
|
case TARGET_NR_listen:
|
|
return get_errno(listen(arg1, arg2));
|
|
#endif
|
|
#ifdef TARGET_NR_recv
|
|
case TARGET_NR_recv:
|
|
return do_recvfrom(arg1, arg2, arg3, arg4, 0, 0);
|
|
#endif
|
|
#ifdef TARGET_NR_recvfrom
|
|
case TARGET_NR_recvfrom:
|
|
return do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6);
|
|
#endif
|
|
#ifdef TARGET_NR_recvmsg
|
|
case TARGET_NR_recvmsg:
|
|
return do_sendrecvmsg(arg1, arg2, arg3, 0);
|
|
#endif
|
|
#ifdef TARGET_NR_send
|
|
case TARGET_NR_send:
|
|
return do_sendto(arg1, arg2, arg3, arg4, 0, 0);
|
|
#endif
|
|
#ifdef TARGET_NR_sendmsg
|
|
case TARGET_NR_sendmsg:
|
|
return do_sendrecvmsg(arg1, arg2, arg3, 1);
|
|
#endif
|
|
#ifdef TARGET_NR_sendmmsg
|
|
case TARGET_NR_sendmmsg:
|
|
return do_sendrecvmmsg(arg1, arg2, arg3, arg4, 1);
|
|
#endif
|
|
#ifdef TARGET_NR_recvmmsg
|
|
case TARGET_NR_recvmmsg:
|
|
return do_sendrecvmmsg(arg1, arg2, arg3, arg4, 0);
|
|
#endif
|
|
#ifdef TARGET_NR_sendto
|
|
case TARGET_NR_sendto:
|
|
return do_sendto(arg1, arg2, arg3, arg4, arg5, arg6);
|
|
#endif
|
|
#ifdef TARGET_NR_shutdown
|
|
case TARGET_NR_shutdown:
|
|
return get_errno(shutdown(arg1, arg2));
|
|
#endif
|
|
#if defined(TARGET_NR_getrandom) && defined(__NR_getrandom)
|
|
case TARGET_NR_getrandom:
|
|
p = lock_user(VERIFY_WRITE, arg1, arg2, 0);
|
|
if (!p) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = get_errno(getrandom(p, arg2, arg3));
|
|
unlock_user(p, arg1, ret);
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_socket
|
|
case TARGET_NR_socket:
|
|
return do_socket(arg1, arg2, arg3);
|
|
#endif
|
|
#ifdef TARGET_NR_socketpair
|
|
case TARGET_NR_socketpair:
|
|
return do_socketpair(arg1, arg2, arg3, arg4);
|
|
#endif
|
|
#ifdef TARGET_NR_setsockopt
|
|
case TARGET_NR_setsockopt:
|
|
return do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5);
|
|
#endif
|
|
#if defined(TARGET_NR_syslog)
|
|
case TARGET_NR_syslog:
|
|
{
|
|
int len = arg2;
|
|
|
|
switch (arg1) {
|
|
case TARGET_SYSLOG_ACTION_CLOSE: /* Close log */
|
|
case TARGET_SYSLOG_ACTION_OPEN: /* Open log */
|
|
case TARGET_SYSLOG_ACTION_CLEAR: /* Clear ring buffer */
|
|
case TARGET_SYSLOG_ACTION_CONSOLE_OFF: /* Disable logging */
|
|
case TARGET_SYSLOG_ACTION_CONSOLE_ON: /* Enable logging */
|
|
case TARGET_SYSLOG_ACTION_CONSOLE_LEVEL: /* Set messages level */
|
|
case TARGET_SYSLOG_ACTION_SIZE_UNREAD: /* Number of chars */
|
|
case TARGET_SYSLOG_ACTION_SIZE_BUFFER: /* Size of the buffer */
|
|
return get_errno(sys_syslog((int)arg1, NULL, (int)arg3));
|
|
case TARGET_SYSLOG_ACTION_READ: /* Read from log */
|
|
case TARGET_SYSLOG_ACTION_READ_CLEAR: /* Read/clear msgs */
|
|
case TARGET_SYSLOG_ACTION_READ_ALL: /* Read last messages */
|
|
{
|
|
if (len < 0) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
if (len == 0) {
|
|
return 0;
|
|
}
|
|
p = lock_user(VERIFY_WRITE, arg2, arg3, 0);
|
|
if (!p) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = get_errno(sys_syslog((int)arg1, p, (int)arg3));
|
|
unlock_user(p, arg2, arg3);
|
|
}
|
|
return ret;
|
|
default:
|
|
return -TARGET_EINVAL;
|
|
}
|
|
}
|
|
break;
|
|
#endif
|
|
case TARGET_NR_setitimer:
|
|
{
|
|
struct itimerval value, ovalue, *pvalue;
|
|
|
|
if (arg2) {
|
|
pvalue = &value;
|
|
if (copy_from_user_timeval(&pvalue->it_interval, arg2)
|
|
|| copy_from_user_timeval(&pvalue->it_value,
|
|
arg2 + sizeof(struct target_timeval)))
|
|
return -TARGET_EFAULT;
|
|
} else {
|
|
pvalue = NULL;
|
|
}
|
|
ret = get_errno(setitimer(arg1, pvalue, &ovalue));
|
|
if (!is_error(ret) && arg3) {
|
|
if (copy_to_user_timeval(arg3,
|
|
&ovalue.it_interval)
|
|
|| copy_to_user_timeval(arg3 + sizeof(struct target_timeval),
|
|
&ovalue.it_value))
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
return ret;
|
|
case TARGET_NR_getitimer:
|
|
{
|
|
struct itimerval value;
|
|
|
|
ret = get_errno(getitimer(arg1, &value));
|
|
if (!is_error(ret) && arg2) {
|
|
if (copy_to_user_timeval(arg2,
|
|
&value.it_interval)
|
|
|| copy_to_user_timeval(arg2 + sizeof(struct target_timeval),
|
|
&value.it_value))
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
return ret;
|
|
#ifdef TARGET_NR_stat
|
|
case TARGET_NR_stat:
|
|
if (!(p = lock_user_string(arg1))) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = get_errno(stat(path(p), &st));
|
|
unlock_user(p, arg1, 0);
|
|
goto do_stat;
|
|
#endif
|
|
#ifdef TARGET_NR_lstat
|
|
case TARGET_NR_lstat:
|
|
if (!(p = lock_user_string(arg1))) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = get_errno(lstat(path(p), &st));
|
|
unlock_user(p, arg1, 0);
|
|
goto do_stat;
|
|
#endif
|
|
#ifdef TARGET_NR_fstat
|
|
case TARGET_NR_fstat:
|
|
{
|
|
ret = get_errno(fstat(arg1, &st));
|
|
#if defined(TARGET_NR_stat) || defined(TARGET_NR_lstat)
|
|
do_stat:
|
|
#endif
|
|
if (!is_error(ret)) {
|
|
struct target_stat *target_st;
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0))
|
|
return -TARGET_EFAULT;
|
|
memset(target_st, 0, sizeof(*target_st));
|
|
__put_user(st.st_dev, &target_st->st_dev);
|
|
__put_user(st.st_ino, &target_st->st_ino);
|
|
__put_user(st.st_mode, &target_st->st_mode);
|
|
__put_user(st.st_uid, &target_st->st_uid);
|
|
__put_user(st.st_gid, &target_st->st_gid);
|
|
__put_user(st.st_nlink, &target_st->st_nlink);
|
|
__put_user(st.st_rdev, &target_st->st_rdev);
|
|
__put_user(st.st_size, &target_st->st_size);
|
|
__put_user(st.st_blksize, &target_st->st_blksize);
|
|
__put_user(st.st_blocks, &target_st->st_blocks);
|
|
__put_user(st.st_atime, &target_st->target_st_atime);
|
|
__put_user(st.st_mtime, &target_st->target_st_mtime);
|
|
__put_user(st.st_ctime, &target_st->target_st_ctime);
|
|
#if defined(HAVE_STRUCT_STAT_ST_ATIM) && defined(TARGET_STAT_HAVE_NSEC)
|
|
__put_user(st.st_atim.tv_nsec,
|
|
&target_st->target_st_atime_nsec);
|
|
__put_user(st.st_mtim.tv_nsec,
|
|
&target_st->target_st_mtime_nsec);
|
|
__put_user(st.st_ctim.tv_nsec,
|
|
&target_st->target_st_ctime_nsec);
|
|
#endif
|
|
unlock_user_struct(target_st, arg2, 1);
|
|
}
|
|
}
|
|
return ret;
|
|
#endif
|
|
case TARGET_NR_vhangup:
|
|
return get_errno(vhangup());
|
|
#ifdef TARGET_NR_syscall
|
|
case TARGET_NR_syscall:
|
|
return do_syscall(cpu_env, arg1 & 0xffff, arg2, arg3, arg4, arg5,
|
|
arg6, arg7, arg8, 0);
|
|
#endif
|
|
#if defined(TARGET_NR_wait4)
|
|
case TARGET_NR_wait4:
|
|
{
|
|
int status;
|
|
abi_long status_ptr = arg2;
|
|
struct rusage rusage, *rusage_ptr;
|
|
abi_ulong target_rusage = arg4;
|
|
abi_long rusage_err;
|
|
if (target_rusage)
|
|
rusage_ptr = &rusage;
|
|
else
|
|
rusage_ptr = NULL;
|
|
ret = get_errno(safe_wait4(arg1, &status, arg3, rusage_ptr));
|
|
if (!is_error(ret)) {
|
|
if (status_ptr && ret) {
|
|
status = host_to_target_waitstatus(status);
|
|
if (put_user_s32(status, status_ptr))
|
|
return -TARGET_EFAULT;
|
|
}
|
|
if (target_rusage) {
|
|
rusage_err = host_to_target_rusage(target_rusage, &rusage);
|
|
if (rusage_err) {
|
|
ret = rusage_err;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_swapoff
|
|
case TARGET_NR_swapoff:
|
|
if (!(p = lock_user_string(arg1)))
|
|
return -TARGET_EFAULT;
|
|
ret = get_errno(swapoff(p));
|
|
unlock_user(p, arg1, 0);
|
|
return ret;
|
|
#endif
|
|
case TARGET_NR_sysinfo:
|
|
{
|
|
struct target_sysinfo *target_value;
|
|
struct sysinfo value;
|
|
ret = get_errno(sysinfo(&value));
|
|
if (!is_error(ret) && arg1)
|
|
{
|
|
if (!lock_user_struct(VERIFY_WRITE, target_value, arg1, 0))
|
|
return -TARGET_EFAULT;
|
|
__put_user(value.uptime, &target_value->uptime);
|
|
__put_user(value.loads[0], &target_value->loads[0]);
|
|
__put_user(value.loads[1], &target_value->loads[1]);
|
|
__put_user(value.loads[2], &target_value->loads[2]);
|
|
__put_user(value.totalram, &target_value->totalram);
|
|
__put_user(value.freeram, &target_value->freeram);
|
|
__put_user(value.sharedram, &target_value->sharedram);
|
|
__put_user(value.bufferram, &target_value->bufferram);
|
|
__put_user(value.totalswap, &target_value->totalswap);
|
|
__put_user(value.freeswap, &target_value->freeswap);
|
|
__put_user(value.procs, &target_value->procs);
|
|
__put_user(value.totalhigh, &target_value->totalhigh);
|
|
__put_user(value.freehigh, &target_value->freehigh);
|
|
__put_user(value.mem_unit, &target_value->mem_unit);
|
|
unlock_user_struct(target_value, arg1, 1);
|
|
}
|
|
}
|
|
return ret;
|
|
#ifdef TARGET_NR_ipc
|
|
case TARGET_NR_ipc:
|
|
return do_ipc(cpu_env, arg1, arg2, arg3, arg4, arg5, arg6);
|
|
#endif
|
|
#ifdef TARGET_NR_semget
|
|
case TARGET_NR_semget:
|
|
return get_errno(semget(arg1, arg2, arg3));
|
|
#endif
|
|
#ifdef TARGET_NR_semop
|
|
case TARGET_NR_semop:
|
|
return do_semtimedop(arg1, arg2, arg3, 0, false);
|
|
#endif
|
|
#ifdef TARGET_NR_semtimedop
|
|
case TARGET_NR_semtimedop:
|
|
return do_semtimedop(arg1, arg2, arg3, arg4, false);
|
|
#endif
|
|
#ifdef TARGET_NR_semtimedop_time64
|
|
case TARGET_NR_semtimedop_time64:
|
|
return do_semtimedop(arg1, arg2, arg3, arg4, true);
|
|
#endif
|
|
#ifdef TARGET_NR_semctl
|
|
case TARGET_NR_semctl:
|
|
return do_semctl(arg1, arg2, arg3, arg4);
|
|
#endif
|
|
#ifdef TARGET_NR_msgctl
|
|
case TARGET_NR_msgctl:
|
|
return do_msgctl(arg1, arg2, arg3);
|
|
#endif
|
|
#ifdef TARGET_NR_msgget
|
|
case TARGET_NR_msgget:
|
|
return get_errno(msgget(arg1, arg2));
|
|
#endif
|
|
#ifdef TARGET_NR_msgrcv
|
|
case TARGET_NR_msgrcv:
|
|
return do_msgrcv(arg1, arg2, arg3, arg4, arg5);
|
|
#endif
|
|
#ifdef TARGET_NR_msgsnd
|
|
case TARGET_NR_msgsnd:
|
|
return do_msgsnd(arg1, arg2, arg3, arg4);
|
|
#endif
|
|
#ifdef TARGET_NR_shmget
|
|
case TARGET_NR_shmget:
|
|
return get_errno(shmget(arg1, arg2, arg3));
|
|
#endif
|
|
#ifdef TARGET_NR_shmctl
|
|
case TARGET_NR_shmctl:
|
|
return do_shmctl(arg1, arg2, arg3);
|
|
#endif
|
|
#ifdef TARGET_NR_shmat
|
|
case TARGET_NR_shmat:
|
|
return do_shmat(cpu_env, arg1, arg2, arg3);
|
|
#endif
|
|
#ifdef TARGET_NR_shmdt
|
|
case TARGET_NR_shmdt:
|
|
return do_shmdt(arg1);
|
|
#endif
|
|
case TARGET_NR_fsync:
|
|
return get_errno(fsync(arg1));
|
|
case TARGET_NR_clone:
|
|
/* Linux manages to have three different orderings for its
|
|
* arguments to clone(); the BACKWARDS and BACKWARDS2 defines
|
|
* match the kernel's CONFIG_CLONE_* settings.
|
|
* Microblaze is further special in that it uses a sixth
|
|
* implicit argument to clone for the TLS pointer.
|
|
*/
|
|
#if defined(TARGET_MICROBLAZE)
|
|
ret = get_errno(do_fork(cpu_env, arg1, arg2, arg4, arg6, arg5));
|
|
#elif defined(TARGET_CLONE_BACKWARDS)
|
|
ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg4, arg5));
|
|
#elif defined(TARGET_CLONE_BACKWARDS2)
|
|
ret = get_errno(do_fork(cpu_env, arg2, arg1, arg3, arg5, arg4));
|
|
#else
|
|
ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg5, arg4));
|
|
#endif
|
|
return ret;
|
|
#ifdef __NR_exit_group
|
|
/* new thread calls */
|
|
case TARGET_NR_exit_group:
|
|
preexit_cleanup(cpu_env, arg1);
|
|
return get_errno(exit_group(arg1));
|
|
#endif
|
|
case TARGET_NR_setdomainname:
|
|
if (!(p = lock_user_string(arg1)))
|
|
return -TARGET_EFAULT;
|
|
ret = get_errno(setdomainname(p, arg2));
|
|
unlock_user(p, arg1, 0);
|
|
return ret;
|
|
case TARGET_NR_uname:
|
|
/* no need to transcode because we use the linux syscall */
|
|
{
|
|
struct new_utsname * buf;
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, buf, arg1, 0))
|
|
return -TARGET_EFAULT;
|
|
ret = get_errno(sys_uname(buf));
|
|
if (!is_error(ret)) {
|
|
/* Overwrite the native machine name with whatever is being
|
|
emulated. */
|
|
g_strlcpy(buf->machine, cpu_to_uname_machine(cpu_env),
|
|
sizeof(buf->machine));
|
|
/* Allow the user to override the reported release. */
|
|
if (qemu_uname_release && *qemu_uname_release) {
|
|
g_strlcpy(buf->release, qemu_uname_release,
|
|
sizeof(buf->release));
|
|
}
|
|
}
|
|
unlock_user_struct(buf, arg1, 1);
|
|
}
|
|
return ret;
|
|
#ifdef TARGET_I386
|
|
case TARGET_NR_modify_ldt:
|
|
return do_modify_ldt(cpu_env, arg1, arg2, arg3);
|
|
#if !defined(TARGET_X86_64)
|
|
case TARGET_NR_vm86:
|
|
return do_vm86(cpu_env, arg1, arg2);
|
|
#endif
|
|
#endif
|
|
#if defined(TARGET_NR_adjtimex)
|
|
case TARGET_NR_adjtimex:
|
|
{
|
|
struct timex host_buf;
|
|
|
|
if (target_to_host_timex(&host_buf, arg1) != 0) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = get_errno(adjtimex(&host_buf));
|
|
if (!is_error(ret)) {
|
|
if (host_to_target_timex(arg1, &host_buf) != 0) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
}
|
|
return ret;
|
|
#endif
|
|
#if defined(TARGET_NR_clock_adjtime) && defined(CONFIG_CLOCK_ADJTIME)
|
|
case TARGET_NR_clock_adjtime:
|
|
{
|
|
struct timex htx, *phtx = &htx;
|
|
|
|
if (target_to_host_timex(phtx, arg2) != 0) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = get_errno(clock_adjtime(arg1, phtx));
|
|
if (!is_error(ret) && phtx) {
|
|
if (host_to_target_timex(arg2, phtx) != 0) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
}
|
|
return ret;
|
|
#endif
|
|
#if defined(TARGET_NR_clock_adjtime64) && defined(CONFIG_CLOCK_ADJTIME)
|
|
case TARGET_NR_clock_adjtime64:
|
|
{
|
|
struct timex htx;
|
|
|
|
if (target_to_host_timex64(&htx, arg2) != 0) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = get_errno(clock_adjtime(arg1, &htx));
|
|
if (!is_error(ret) && host_to_target_timex64(arg2, &htx)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
return ret;
|
|
#endif
|
|
case TARGET_NR_getpgid:
|
|
return get_errno(getpgid(arg1));
|
|
case TARGET_NR_fchdir:
|
|
return get_errno(fchdir(arg1));
|
|
case TARGET_NR_personality:
|
|
return get_errno(personality(arg1));
|
|
#ifdef TARGET_NR__llseek /* Not on alpha */
|
|
case TARGET_NR__llseek:
|
|
{
|
|
int64_t res;
|
|
#if !defined(__NR_llseek)
|
|
res = lseek(arg1, ((uint64_t)arg2 << 32) | (abi_ulong)arg3, arg5);
|
|
if (res == -1) {
|
|
ret = get_errno(res);
|
|
} else {
|
|
ret = 0;
|
|
}
|
|
#else
|
|
ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
|
|
#endif
|
|
if ((ret == 0) && put_user_s64(res, arg4)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_getdents
|
|
case TARGET_NR_getdents:
|
|
return do_getdents(arg1, arg2, arg3);
|
|
#endif /* TARGET_NR_getdents */
|
|
#if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
|
|
case TARGET_NR_getdents64:
|
|
return do_getdents64(arg1, arg2, arg3);
|
|
#endif /* TARGET_NR_getdents64 */
|
|
#if defined(TARGET_NR__newselect)
|
|
case TARGET_NR__newselect:
|
|
return do_select(arg1, arg2, arg3, arg4, arg5);
|
|
#endif
|
|
#ifdef TARGET_NR_poll
|
|
case TARGET_NR_poll:
|
|
return do_ppoll(arg1, arg2, arg3, arg4, arg5, false, false);
|
|
#endif
|
|
#ifdef TARGET_NR_ppoll
|
|
case TARGET_NR_ppoll:
|
|
return do_ppoll(arg1, arg2, arg3, arg4, arg5, true, false);
|
|
#endif
|
|
#ifdef TARGET_NR_ppoll_time64
|
|
case TARGET_NR_ppoll_time64:
|
|
return do_ppoll(arg1, arg2, arg3, arg4, arg5, true, true);
|
|
#endif
|
|
case TARGET_NR_flock:
|
|
/* NOTE: the flock constant seems to be the same for every
|
|
Linux platform */
|
|
return get_errno(safe_flock(arg1, arg2));
|
|
case TARGET_NR_readv:
|
|
{
|
|
struct iovec *vec = lock_iovec(VERIFY_WRITE, arg2, arg3, 0);
|
|
if (vec != NULL) {
|
|
ret = get_errno(safe_readv(arg1, vec, arg3));
|
|
unlock_iovec(vec, arg2, arg3, 1);
|
|
} else {
|
|
ret = -host_to_target_errno(errno);
|
|
}
|
|
}
|
|
return ret;
|
|
case TARGET_NR_writev:
|
|
{
|
|
struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1);
|
|
if (vec != NULL) {
|
|
ret = get_errno(safe_writev(arg1, vec, arg3));
|
|
unlock_iovec(vec, arg2, arg3, 0);
|
|
} else {
|
|
ret = -host_to_target_errno(errno);
|
|
}
|
|
}
|
|
return ret;
|
|
#if defined(TARGET_NR_preadv)
|
|
case TARGET_NR_preadv:
|
|
{
|
|
struct iovec *vec = lock_iovec(VERIFY_WRITE, arg2, arg3, 0);
|
|
if (vec != NULL) {
|
|
unsigned long low, high;
|
|
|
|
target_to_host_low_high(arg4, arg5, &low, &high);
|
|
ret = get_errno(safe_preadv(arg1, vec, arg3, low, high));
|
|
unlock_iovec(vec, arg2, arg3, 1);
|
|
} else {
|
|
ret = -host_to_target_errno(errno);
|
|
}
|
|
}
|
|
return ret;
|
|
#endif
|
|
#if defined(TARGET_NR_pwritev)
|
|
case TARGET_NR_pwritev:
|
|
{
|
|
struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1);
|
|
if (vec != NULL) {
|
|
unsigned long low, high;
|
|
|
|
target_to_host_low_high(arg4, arg5, &low, &high);
|
|
ret = get_errno(safe_pwritev(arg1, vec, arg3, low, high));
|
|
unlock_iovec(vec, arg2, arg3, 0);
|
|
} else {
|
|
ret = -host_to_target_errno(errno);
|
|
}
|
|
}
|
|
return ret;
|
|
#endif
|
|
case TARGET_NR_getsid:
|
|
return get_errno(getsid(arg1));
|
|
#if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */
|
|
case TARGET_NR_fdatasync:
|
|
return get_errno(fdatasync(arg1));
|
|
#endif
|
|
case TARGET_NR_sched_getaffinity:
|
|
{
|
|
unsigned int mask_size;
|
|
unsigned long *mask;
|
|
|
|
/*
|
|
* sched_getaffinity needs multiples of ulong, so need to take
|
|
* care of mismatches between target ulong and host ulong sizes.
|
|
*/
|
|
if (arg2 & (sizeof(abi_ulong) - 1)) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1);
|
|
|
|
mask = alloca(mask_size);
|
|
memset(mask, 0, mask_size);
|
|
ret = get_errno(sys_sched_getaffinity(arg1, mask_size, mask));
|
|
|
|
if (!is_error(ret)) {
|
|
if (ret > arg2) {
|
|
/* More data returned than the caller's buffer will fit.
|
|
* This only happens if sizeof(abi_long) < sizeof(long)
|
|
* and the caller passed us a buffer holding an odd number
|
|
* of abi_longs. If the host kernel is actually using the
|
|
* extra 4 bytes then fail EINVAL; otherwise we can just
|
|
* ignore them and only copy the interesting part.
|
|
*/
|
|
int numcpus = sysconf(_SC_NPROCESSORS_CONF);
|
|
if (numcpus > arg2 * 8) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
ret = arg2;
|
|
}
|
|
|
|
if (host_to_target_cpu_mask(mask, mask_size, arg3, ret)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
}
|
|
return ret;
|
|
case TARGET_NR_sched_setaffinity:
|
|
{
|
|
unsigned int mask_size;
|
|
unsigned long *mask;
|
|
|
|
/*
|
|
* sched_setaffinity needs multiples of ulong, so need to take
|
|
* care of mismatches between target ulong and host ulong sizes.
|
|
*/
|
|
if (arg2 & (sizeof(abi_ulong) - 1)) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1);
|
|
mask = alloca(mask_size);
|
|
|
|
ret = target_to_host_cpu_mask(mask, mask_size, arg3, arg2);
|
|
if (ret) {
|
|
return ret;
|
|
}
|
|
|
|
return get_errno(sys_sched_setaffinity(arg1, mask_size, mask));
|
|
}
|
|
case TARGET_NR_getcpu:
|
|
{
|
|
unsigned cpu, node;
|
|
ret = get_errno(sys_getcpu(arg1 ? &cpu : NULL,
|
|
arg2 ? &node : NULL,
|
|
NULL));
|
|
if (is_error(ret)) {
|
|
return ret;
|
|
}
|
|
if (arg1 && put_user_u32(cpu, arg1)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
if (arg2 && put_user_u32(node, arg2)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
return ret;
|
|
case TARGET_NR_sched_setparam:
|
|
{
|
|
struct target_sched_param *target_schp;
|
|
struct sched_param schp;
|
|
|
|
if (arg2 == 0) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
if (!lock_user_struct(VERIFY_READ, target_schp, arg2, 1)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
schp.sched_priority = tswap32(target_schp->sched_priority);
|
|
unlock_user_struct(target_schp, arg2, 0);
|
|
return get_errno(sys_sched_setparam(arg1, &schp));
|
|
}
|
|
case TARGET_NR_sched_getparam:
|
|
{
|
|
struct target_sched_param *target_schp;
|
|
struct sched_param schp;
|
|
|
|
if (arg2 == 0) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
ret = get_errno(sys_sched_getparam(arg1, &schp));
|
|
if (!is_error(ret)) {
|
|
if (!lock_user_struct(VERIFY_WRITE, target_schp, arg2, 0)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
target_schp->sched_priority = tswap32(schp.sched_priority);
|
|
unlock_user_struct(target_schp, arg2, 1);
|
|
}
|
|
}
|
|
return ret;
|
|
case TARGET_NR_sched_setscheduler:
|
|
{
|
|
struct target_sched_param *target_schp;
|
|
struct sched_param schp;
|
|
if (arg3 == 0) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
if (!lock_user_struct(VERIFY_READ, target_schp, arg3, 1)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
schp.sched_priority = tswap32(target_schp->sched_priority);
|
|
unlock_user_struct(target_schp, arg3, 0);
|
|
return get_errno(sys_sched_setscheduler(arg1, arg2, &schp));
|
|
}
|
|
case TARGET_NR_sched_getscheduler:
|
|
return get_errno(sys_sched_getscheduler(arg1));
|
|
case TARGET_NR_sched_getattr:
|
|
{
|
|
struct target_sched_attr *target_scha;
|
|
struct sched_attr scha;
|
|
if (arg2 == 0) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
if (arg3 > sizeof(scha)) {
|
|
arg3 = sizeof(scha);
|
|
}
|
|
ret = get_errno(sys_sched_getattr(arg1, &scha, arg3, arg4));
|
|
if (!is_error(ret)) {
|
|
target_scha = lock_user(VERIFY_WRITE, arg2, arg3, 0);
|
|
if (!target_scha) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
target_scha->size = tswap32(scha.size);
|
|
target_scha->sched_policy = tswap32(scha.sched_policy);
|
|
target_scha->sched_flags = tswap64(scha.sched_flags);
|
|
target_scha->sched_nice = tswap32(scha.sched_nice);
|
|
target_scha->sched_priority = tswap32(scha.sched_priority);
|
|
target_scha->sched_runtime = tswap64(scha.sched_runtime);
|
|
target_scha->sched_deadline = tswap64(scha.sched_deadline);
|
|
target_scha->sched_period = tswap64(scha.sched_period);
|
|
if (scha.size > offsetof(struct sched_attr, sched_util_min)) {
|
|
target_scha->sched_util_min = tswap32(scha.sched_util_min);
|
|
target_scha->sched_util_max = tswap32(scha.sched_util_max);
|
|
}
|
|
unlock_user(target_scha, arg2, arg3);
|
|
}
|
|
return ret;
|
|
}
|
|
case TARGET_NR_sched_setattr:
|
|
{
|
|
struct target_sched_attr *target_scha;
|
|
struct sched_attr scha;
|
|
uint32_t size;
|
|
int zeroed;
|
|
if (arg2 == 0) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
if (get_user_u32(size, arg2)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
if (!size) {
|
|
size = offsetof(struct target_sched_attr, sched_util_min);
|
|
}
|
|
if (size < offsetof(struct target_sched_attr, sched_util_min)) {
|
|
if (put_user_u32(sizeof(struct target_sched_attr), arg2)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
return -TARGET_E2BIG;
|
|
}
|
|
|
|
zeroed = check_zeroed_user(arg2, sizeof(struct target_sched_attr), size);
|
|
if (zeroed < 0) {
|
|
return zeroed;
|
|
} else if (zeroed == 0) {
|
|
if (put_user_u32(sizeof(struct target_sched_attr), arg2)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
return -TARGET_E2BIG;
|
|
}
|
|
if (size > sizeof(struct target_sched_attr)) {
|
|
size = sizeof(struct target_sched_attr);
|
|
}
|
|
|
|
target_scha = lock_user(VERIFY_READ, arg2, size, 1);
|
|
if (!target_scha) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
scha.size = size;
|
|
scha.sched_policy = tswap32(target_scha->sched_policy);
|
|
scha.sched_flags = tswap64(target_scha->sched_flags);
|
|
scha.sched_nice = tswap32(target_scha->sched_nice);
|
|
scha.sched_priority = tswap32(target_scha->sched_priority);
|
|
scha.sched_runtime = tswap64(target_scha->sched_runtime);
|
|
scha.sched_deadline = tswap64(target_scha->sched_deadline);
|
|
scha.sched_period = tswap64(target_scha->sched_period);
|
|
if (size > offsetof(struct target_sched_attr, sched_util_min)) {
|
|
scha.sched_util_min = tswap32(target_scha->sched_util_min);
|
|
scha.sched_util_max = tswap32(target_scha->sched_util_max);
|
|
}
|
|
unlock_user(target_scha, arg2, 0);
|
|
return get_errno(sys_sched_setattr(arg1, &scha, arg3));
|
|
}
|
|
case TARGET_NR_sched_yield:
|
|
return get_errno(sched_yield());
|
|
case TARGET_NR_sched_get_priority_max:
|
|
return get_errno(sched_get_priority_max(arg1));
|
|
case TARGET_NR_sched_get_priority_min:
|
|
return get_errno(sched_get_priority_min(arg1));
|
|
#ifdef TARGET_NR_sched_rr_get_interval
|
|
case TARGET_NR_sched_rr_get_interval:
|
|
{
|
|
struct timespec ts;
|
|
ret = get_errno(sched_rr_get_interval(arg1, &ts));
|
|
if (!is_error(ret)) {
|
|
ret = host_to_target_timespec(arg2, &ts);
|
|
}
|
|
}
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_sched_rr_get_interval_time64
|
|
case TARGET_NR_sched_rr_get_interval_time64:
|
|
{
|
|
struct timespec ts;
|
|
ret = get_errno(sched_rr_get_interval(arg1, &ts));
|
|
if (!is_error(ret)) {
|
|
ret = host_to_target_timespec64(arg2, &ts);
|
|
}
|
|
}
|
|
return ret;
|
|
#endif
|
|
#if defined(TARGET_NR_nanosleep)
|
|
case TARGET_NR_nanosleep:
|
|
{
|
|
struct timespec req, rem;
|
|
target_to_host_timespec(&req, arg1);
|
|
ret = get_errno(safe_nanosleep(&req, &rem));
|
|
if (is_error(ret) && arg2) {
|
|
host_to_target_timespec(arg2, &rem);
|
|
}
|
|
}
|
|
return ret;
|
|
#endif
|
|
case TARGET_NR_prctl:
|
|
return do_prctl(cpu_env, arg1, arg2, arg3, arg4, arg5);
|
|
break;
|
|
#ifdef TARGET_NR_arch_prctl
|
|
case TARGET_NR_arch_prctl:
|
|
return do_arch_prctl(cpu_env, arg1, arg2);
|
|
#endif
|
|
#ifdef TARGET_NR_pread64
|
|
case TARGET_NR_pread64:
|
|
if (regpairs_aligned(cpu_env, num)) {
|
|
arg4 = arg5;
|
|
arg5 = arg6;
|
|
}
|
|
if (arg2 == 0 && arg3 == 0) {
|
|
/* Special-case NULL buffer and zero length, which should succeed */
|
|
p = 0;
|
|
} else {
|
|
p = lock_user(VERIFY_WRITE, arg2, arg3, 0);
|
|
if (!p) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
ret = get_errno(pread64(arg1, p, arg3, target_offset64(arg4, arg5)));
|
|
unlock_user(p, arg2, ret);
|
|
return ret;
|
|
case TARGET_NR_pwrite64:
|
|
if (regpairs_aligned(cpu_env, num)) {
|
|
arg4 = arg5;
|
|
arg5 = arg6;
|
|
}
|
|
if (arg2 == 0 && arg3 == 0) {
|
|
/* Special-case NULL buffer and zero length, which should succeed */
|
|
p = 0;
|
|
} else {
|
|
p = lock_user(VERIFY_READ, arg2, arg3, 1);
|
|
if (!p) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
ret = get_errno(pwrite64(arg1, p, arg3, target_offset64(arg4, arg5)));
|
|
unlock_user(p, arg2, 0);
|
|
return ret;
|
|
#endif
|
|
case TARGET_NR_getcwd:
|
|
if (!(p = lock_user(VERIFY_WRITE, arg1, arg2, 0)))
|
|
return -TARGET_EFAULT;
|
|
ret = get_errno(sys_getcwd1(p, arg2));
|
|
unlock_user(p, arg1, ret);
|
|
return ret;
|
|
case TARGET_NR_capget:
|
|
case TARGET_NR_capset:
|
|
{
|
|
struct target_user_cap_header *target_header;
|
|
struct target_user_cap_data *target_data = NULL;
|
|
struct __user_cap_header_struct header;
|
|
struct __user_cap_data_struct data[2];
|
|
struct __user_cap_data_struct *dataptr = NULL;
|
|
int i, target_datalen;
|
|
int data_items = 1;
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, target_header, arg1, 1)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
header.version = tswap32(target_header->version);
|
|
header.pid = tswap32(target_header->pid);
|
|
|
|
if (header.version != _LINUX_CAPABILITY_VERSION) {
|
|
/* Version 2 and up takes pointer to two user_data structs */
|
|
data_items = 2;
|
|
}
|
|
|
|
target_datalen = sizeof(*target_data) * data_items;
|
|
|
|
if (arg2) {
|
|
if (num == TARGET_NR_capget) {
|
|
target_data = lock_user(VERIFY_WRITE, arg2, target_datalen, 0);
|
|
} else {
|
|
target_data = lock_user(VERIFY_READ, arg2, target_datalen, 1);
|
|
}
|
|
if (!target_data) {
|
|
unlock_user_struct(target_header, arg1, 0);
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
if (num == TARGET_NR_capset) {
|
|
for (i = 0; i < data_items; i++) {
|
|
data[i].effective = tswap32(target_data[i].effective);
|
|
data[i].permitted = tswap32(target_data[i].permitted);
|
|
data[i].inheritable = tswap32(target_data[i].inheritable);
|
|
}
|
|
}
|
|
|
|
dataptr = data;
|
|
}
|
|
|
|
if (num == TARGET_NR_capget) {
|
|
ret = get_errno(capget(&header, dataptr));
|
|
} else {
|
|
ret = get_errno(capset(&header, dataptr));
|
|
}
|
|
|
|
/* The kernel always updates version for both capget and capset */
|
|
target_header->version = tswap32(header.version);
|
|
unlock_user_struct(target_header, arg1, 1);
|
|
|
|
if (arg2) {
|
|
if (num == TARGET_NR_capget) {
|
|
for (i = 0; i < data_items; i++) {
|
|
target_data[i].effective = tswap32(data[i].effective);
|
|
target_data[i].permitted = tswap32(data[i].permitted);
|
|
target_data[i].inheritable = tswap32(data[i].inheritable);
|
|
}
|
|
unlock_user(target_data, arg2, target_datalen);
|
|
} else {
|
|
unlock_user(target_data, arg2, 0);
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
case TARGET_NR_sigaltstack:
|
|
return do_sigaltstack(arg1, arg2, cpu_env);
|
|
|
|
#ifdef CONFIG_SENDFILE
|
|
#ifdef TARGET_NR_sendfile
|
|
case TARGET_NR_sendfile:
|
|
{
|
|
off_t *offp = NULL;
|
|
off_t off;
|
|
if (arg3) {
|
|
ret = get_user_sal(off, arg3);
|
|
if (is_error(ret)) {
|
|
return ret;
|
|
}
|
|
offp = &off;
|
|
}
|
|
ret = get_errno(sendfile(arg1, arg2, offp, arg4));
|
|
if (!is_error(ret) && arg3) {
|
|
abi_long ret2 = put_user_sal(off, arg3);
|
|
if (is_error(ret2)) {
|
|
ret = ret2;
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
#endif
|
|
#ifdef TARGET_NR_sendfile64
|
|
case TARGET_NR_sendfile64:
|
|
{
|
|
off_t *offp = NULL;
|
|
off_t off;
|
|
if (arg3) {
|
|
ret = get_user_s64(off, arg3);
|
|
if (is_error(ret)) {
|
|
return ret;
|
|
}
|
|
offp = &off;
|
|
}
|
|
ret = get_errno(sendfile(arg1, arg2, offp, arg4));
|
|
if (!is_error(ret) && arg3) {
|
|
abi_long ret2 = put_user_s64(off, arg3);
|
|
if (is_error(ret2)) {
|
|
ret = ret2;
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
#endif
|
|
#endif
|
|
#ifdef TARGET_NR_vfork
|
|
case TARGET_NR_vfork:
|
|
return get_errno(do_fork(cpu_env,
|
|
CLONE_VFORK | CLONE_VM | TARGET_SIGCHLD,
|
|
0, 0, 0, 0));
|
|
#endif
|
|
#ifdef TARGET_NR_ugetrlimit
|
|
case TARGET_NR_ugetrlimit:
|
|
{
|
|
struct rlimit rlim;
|
|
int resource = target_to_host_resource(arg1);
|
|
ret = get_errno(getrlimit(resource, &rlim));
|
|
if (!is_error(ret)) {
|
|
struct target_rlimit *target_rlim;
|
|
if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
|
|
return -TARGET_EFAULT;
|
|
target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur);
|
|
target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max);
|
|
unlock_user_struct(target_rlim, arg2, 1);
|
|
}
|
|
return ret;
|
|
}
|
|
#endif
|
|
#ifdef TARGET_NR_truncate64
|
|
case TARGET_NR_truncate64:
|
|
if (!(p = lock_user_string(arg1)))
|
|
return -TARGET_EFAULT;
|
|
ret = target_truncate64(cpu_env, p, arg2, arg3, arg4);
|
|
unlock_user(p, arg1, 0);
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_ftruncate64
|
|
case TARGET_NR_ftruncate64:
|
|
return target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4);
|
|
#endif
|
|
#ifdef TARGET_NR_stat64
|
|
case TARGET_NR_stat64:
|
|
if (!(p = lock_user_string(arg1))) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = get_errno(stat(path(p), &st));
|
|
unlock_user(p, arg1, 0);
|
|
if (!is_error(ret))
|
|
ret = host_to_target_stat64(cpu_env, arg2, &st);
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_lstat64
|
|
case TARGET_NR_lstat64:
|
|
if (!(p = lock_user_string(arg1))) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = get_errno(lstat(path(p), &st));
|
|
unlock_user(p, arg1, 0);
|
|
if (!is_error(ret))
|
|
ret = host_to_target_stat64(cpu_env, arg2, &st);
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_fstat64
|
|
case TARGET_NR_fstat64:
|
|
ret = get_errno(fstat(arg1, &st));
|
|
if (!is_error(ret))
|
|
ret = host_to_target_stat64(cpu_env, arg2, &st);
|
|
return ret;
|
|
#endif
|
|
#if (defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat))
|
|
#ifdef TARGET_NR_fstatat64
|
|
case TARGET_NR_fstatat64:
|
|
#endif
|
|
#ifdef TARGET_NR_newfstatat
|
|
case TARGET_NR_newfstatat:
|
|
#endif
|
|
if (!(p = lock_user_string(arg2))) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = get_errno(fstatat(arg1, path(p), &st, arg4));
|
|
unlock_user(p, arg2, 0);
|
|
if (!is_error(ret))
|
|
ret = host_to_target_stat64(cpu_env, arg3, &st);
|
|
return ret;
|
|
#endif
|
|
#if defined(TARGET_NR_statx)
|
|
case TARGET_NR_statx:
|
|
{
|
|
struct target_statx *target_stx;
|
|
int dirfd = arg1;
|
|
int flags = arg3;
|
|
|
|
p = lock_user_string(arg2);
|
|
if (p == NULL) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
#if defined(__NR_statx)
|
|
{
|
|
/*
|
|
* It is assumed that struct statx is architecture independent.
|
|
*/
|
|
struct target_statx host_stx;
|
|
int mask = arg4;
|
|
|
|
ret = get_errno(sys_statx(dirfd, p, flags, mask, &host_stx));
|
|
if (!is_error(ret)) {
|
|
if (host_to_target_statx(&host_stx, arg5) != 0) {
|
|
unlock_user(p, arg2, 0);
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
|
|
if (ret != -TARGET_ENOSYS) {
|
|
unlock_user(p, arg2, 0);
|
|
return ret;
|
|
}
|
|
}
|
|
#endif
|
|
ret = get_errno(fstatat(dirfd, path(p), &st, flags));
|
|
unlock_user(p, arg2, 0);
|
|
|
|
if (!is_error(ret)) {
|
|
if (!lock_user_struct(VERIFY_WRITE, target_stx, arg5, 0)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
memset(target_stx, 0, sizeof(*target_stx));
|
|
__put_user(major(st.st_dev), &target_stx->stx_dev_major);
|
|
__put_user(minor(st.st_dev), &target_stx->stx_dev_minor);
|
|
__put_user(st.st_ino, &target_stx->stx_ino);
|
|
__put_user(st.st_mode, &target_stx->stx_mode);
|
|
__put_user(st.st_uid, &target_stx->stx_uid);
|
|
__put_user(st.st_gid, &target_stx->stx_gid);
|
|
__put_user(st.st_nlink, &target_stx->stx_nlink);
|
|
__put_user(major(st.st_rdev), &target_stx->stx_rdev_major);
|
|
__put_user(minor(st.st_rdev), &target_stx->stx_rdev_minor);
|
|
__put_user(st.st_size, &target_stx->stx_size);
|
|
__put_user(st.st_blksize, &target_stx->stx_blksize);
|
|
__put_user(st.st_blocks, &target_stx->stx_blocks);
|
|
__put_user(st.st_atime, &target_stx->stx_atime.tv_sec);
|
|
__put_user(st.st_mtime, &target_stx->stx_mtime.tv_sec);
|
|
__put_user(st.st_ctime, &target_stx->stx_ctime.tv_sec);
|
|
unlock_user_struct(target_stx, arg5, 1);
|
|
}
|
|
}
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_lchown
|
|
case TARGET_NR_lchown:
|
|
if (!(p = lock_user_string(arg1)))
|
|
return -TARGET_EFAULT;
|
|
ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3)));
|
|
unlock_user(p, arg1, 0);
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_getuid
|
|
case TARGET_NR_getuid:
|
|
return get_errno(high2lowuid(getuid()));
|
|
#endif
|
|
#ifdef TARGET_NR_getgid
|
|
case TARGET_NR_getgid:
|
|
return get_errno(high2lowgid(getgid()));
|
|
#endif
|
|
#ifdef TARGET_NR_geteuid
|
|
case TARGET_NR_geteuid:
|
|
return get_errno(high2lowuid(geteuid()));
|
|
#endif
|
|
#ifdef TARGET_NR_getegid
|
|
case TARGET_NR_getegid:
|
|
return get_errno(high2lowgid(getegid()));
|
|
#endif
|
|
case TARGET_NR_setreuid:
|
|
return get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));
|
|
case TARGET_NR_setregid:
|
|
return get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));
|
|
case TARGET_NR_getgroups:
|
|
{
|
|
int gidsetsize = arg1;
|
|
target_id *target_grouplist;
|
|
gid_t *grouplist;
|
|
int i;
|
|
|
|
grouplist = alloca(gidsetsize * sizeof(gid_t));
|
|
ret = get_errno(getgroups(gidsetsize, grouplist));
|
|
if (gidsetsize == 0)
|
|
return ret;
|
|
if (!is_error(ret)) {
|
|
target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * sizeof(target_id), 0);
|
|
if (!target_grouplist)
|
|
return -TARGET_EFAULT;
|
|
for(i = 0;i < ret; i++)
|
|
target_grouplist[i] = tswapid(high2lowgid(grouplist[i]));
|
|
unlock_user(target_grouplist, arg2, gidsetsize * sizeof(target_id));
|
|
}
|
|
}
|
|
return ret;
|
|
case TARGET_NR_setgroups:
|
|
{
|
|
int gidsetsize = arg1;
|
|
target_id *target_grouplist;
|
|
gid_t *grouplist = NULL;
|
|
int i;
|
|
if (gidsetsize) {
|
|
grouplist = alloca(gidsetsize * sizeof(gid_t));
|
|
target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * sizeof(target_id), 1);
|
|
if (!target_grouplist) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
for (i = 0; i < gidsetsize; i++) {
|
|
grouplist[i] = low2highgid(tswapid(target_grouplist[i]));
|
|
}
|
|
unlock_user(target_grouplist, arg2, 0);
|
|
}
|
|
return get_errno(setgroups(gidsetsize, grouplist));
|
|
}
|
|
case TARGET_NR_fchown:
|
|
return get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));
|
|
#if defined(TARGET_NR_fchownat)
|
|
case TARGET_NR_fchownat:
|
|
if (!(p = lock_user_string(arg2)))
|
|
return -TARGET_EFAULT;
|
|
ret = get_errno(fchownat(arg1, p, low2highuid(arg3),
|
|
low2highgid(arg4), arg5));
|
|
unlock_user(p, arg2, 0);
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_setresuid
|
|
case TARGET_NR_setresuid:
|
|
return get_errno(sys_setresuid(low2highuid(arg1),
|
|
low2highuid(arg2),
|
|
low2highuid(arg3)));
|
|
#endif
|
|
#ifdef TARGET_NR_getresuid
|
|
case TARGET_NR_getresuid:
|
|
{
|
|
uid_t ruid, euid, suid;
|
|
ret = get_errno(getresuid(&ruid, &euid, &suid));
|
|
if (!is_error(ret)) {
|
|
if (put_user_id(high2lowuid(ruid), arg1)
|
|
|| put_user_id(high2lowuid(euid), arg2)
|
|
|| put_user_id(high2lowuid(suid), arg3))
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_getresgid
|
|
case TARGET_NR_setresgid:
|
|
return get_errno(sys_setresgid(low2highgid(arg1),
|
|
low2highgid(arg2),
|
|
low2highgid(arg3)));
|
|
#endif
|
|
#ifdef TARGET_NR_getresgid
|
|
case TARGET_NR_getresgid:
|
|
{
|
|
gid_t rgid, egid, sgid;
|
|
ret = get_errno(getresgid(&rgid, &egid, &sgid));
|
|
if (!is_error(ret)) {
|
|
if (put_user_id(high2lowgid(rgid), arg1)
|
|
|| put_user_id(high2lowgid(egid), arg2)
|
|
|| put_user_id(high2lowgid(sgid), arg3))
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_chown
|
|
case TARGET_NR_chown:
|
|
if (!(p = lock_user_string(arg1)))
|
|
return -TARGET_EFAULT;
|
|
ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3)));
|
|
unlock_user(p, arg1, 0);
|
|
return ret;
|
|
#endif
|
|
case TARGET_NR_setuid:
|
|
return get_errno(sys_setuid(low2highuid(arg1)));
|
|
case TARGET_NR_setgid:
|
|
return get_errno(sys_setgid(low2highgid(arg1)));
|
|
case TARGET_NR_setfsuid:
|
|
return get_errno(setfsuid(arg1));
|
|
case TARGET_NR_setfsgid:
|
|
return get_errno(setfsgid(arg1));
|
|
|
|
#ifdef TARGET_NR_lchown32
|
|
case TARGET_NR_lchown32:
|
|
if (!(p = lock_user_string(arg1)))
|
|
return -TARGET_EFAULT;
|
|
ret = get_errno(lchown(p, arg2, arg3));
|
|
unlock_user(p, arg1, 0);
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_getuid32
|
|
case TARGET_NR_getuid32:
|
|
return get_errno(getuid());
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_getxuid) && defined(TARGET_ALPHA)
|
|
/* Alpha specific */
|
|
case TARGET_NR_getxuid:
|
|
{
|
|
uid_t euid;
|
|
euid=geteuid();
|
|
cpu_env->ir[IR_A4]=euid;
|
|
}
|
|
return get_errno(getuid());
|
|
#endif
|
|
#if defined(TARGET_NR_getxgid) && defined(TARGET_ALPHA)
|
|
/* Alpha specific */
|
|
case TARGET_NR_getxgid:
|
|
{
|
|
uid_t egid;
|
|
egid=getegid();
|
|
cpu_env->ir[IR_A4]=egid;
|
|
}
|
|
return get_errno(getgid());
|
|
#endif
|
|
#if defined(TARGET_NR_osf_getsysinfo) && defined(TARGET_ALPHA)
|
|
/* Alpha specific */
|
|
case TARGET_NR_osf_getsysinfo:
|
|
ret = -TARGET_EOPNOTSUPP;
|
|
switch (arg1) {
|
|
case TARGET_GSI_IEEE_FP_CONTROL:
|
|
{
|
|
uint64_t fpcr = cpu_alpha_load_fpcr(cpu_env);
|
|
uint64_t swcr = cpu_env->swcr;
|
|
|
|
swcr &= ~SWCR_STATUS_MASK;
|
|
swcr |= (fpcr >> 35) & SWCR_STATUS_MASK;
|
|
|
|
if (put_user_u64 (swcr, arg2))
|
|
return -TARGET_EFAULT;
|
|
ret = 0;
|
|
}
|
|
break;
|
|
|
|
/* case GSI_IEEE_STATE_AT_SIGNAL:
|
|
-- Not implemented in linux kernel.
|
|
case GSI_UACPROC:
|
|
-- Retrieves current unaligned access state; not much used.
|
|
case GSI_PROC_TYPE:
|
|
-- Retrieves implver information; surely not used.
|
|
case GSI_GET_HWRPB:
|
|
-- Grabs a copy of the HWRPB; surely not used.
|
|
*/
|
|
}
|
|
return ret;
|
|
#endif
|
|
#if defined(TARGET_NR_osf_setsysinfo) && defined(TARGET_ALPHA)
|
|
/* Alpha specific */
|
|
case TARGET_NR_osf_setsysinfo:
|
|
ret = -TARGET_EOPNOTSUPP;
|
|
switch (arg1) {
|
|
case TARGET_SSI_IEEE_FP_CONTROL:
|
|
{
|
|
uint64_t swcr, fpcr;
|
|
|
|
if (get_user_u64 (swcr, arg2)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
/*
|
|
* The kernel calls swcr_update_status to update the
|
|
* status bits from the fpcr at every point that it
|
|
* could be queried. Therefore, we store the status
|
|
* bits only in FPCR.
|
|
*/
|
|
cpu_env->swcr = swcr & (SWCR_TRAP_ENABLE_MASK | SWCR_MAP_MASK);
|
|
|
|
fpcr = cpu_alpha_load_fpcr(cpu_env);
|
|
fpcr &= ((uint64_t)FPCR_DYN_MASK << 32);
|
|
fpcr |= alpha_ieee_swcr_to_fpcr(swcr);
|
|
cpu_alpha_store_fpcr(cpu_env, fpcr);
|
|
ret = 0;
|
|
}
|
|
break;
|
|
|
|
case TARGET_SSI_IEEE_RAISE_EXCEPTION:
|
|
{
|
|
uint64_t exc, fpcr, fex;
|
|
|
|
if (get_user_u64(exc, arg2)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
exc &= SWCR_STATUS_MASK;
|
|
fpcr = cpu_alpha_load_fpcr(cpu_env);
|
|
|
|
/* Old exceptions are not signaled. */
|
|
fex = alpha_ieee_fpcr_to_swcr(fpcr);
|
|
fex = exc & ~fex;
|
|
fex >>= SWCR_STATUS_TO_EXCSUM_SHIFT;
|
|
fex &= (cpu_env)->swcr;
|
|
|
|
/* Update the hardware fpcr. */
|
|
fpcr |= alpha_ieee_swcr_to_fpcr(exc);
|
|
cpu_alpha_store_fpcr(cpu_env, fpcr);
|
|
|
|
if (fex) {
|
|
int si_code = TARGET_FPE_FLTUNK;
|
|
target_siginfo_t info;
|
|
|
|
if (fex & SWCR_TRAP_ENABLE_DNO) {
|
|
si_code = TARGET_FPE_FLTUND;
|
|
}
|
|
if (fex & SWCR_TRAP_ENABLE_INE) {
|
|
si_code = TARGET_FPE_FLTRES;
|
|
}
|
|
if (fex & SWCR_TRAP_ENABLE_UNF) {
|
|
si_code = TARGET_FPE_FLTUND;
|
|
}
|
|
if (fex & SWCR_TRAP_ENABLE_OVF) {
|
|
si_code = TARGET_FPE_FLTOVF;
|
|
}
|
|
if (fex & SWCR_TRAP_ENABLE_DZE) {
|
|
si_code = TARGET_FPE_FLTDIV;
|
|
}
|
|
if (fex & SWCR_TRAP_ENABLE_INV) {
|
|
si_code = TARGET_FPE_FLTINV;
|
|
}
|
|
|
|
info.si_signo = SIGFPE;
|
|
info.si_errno = 0;
|
|
info.si_code = si_code;
|
|
info._sifields._sigfault._addr = (cpu_env)->pc;
|
|
queue_signal(cpu_env, info.si_signo,
|
|
QEMU_SI_FAULT, &info);
|
|
}
|
|
ret = 0;
|
|
}
|
|
break;
|
|
|
|
/* case SSI_NVPAIRS:
|
|
-- Used with SSIN_UACPROC to enable unaligned accesses.
|
|
case SSI_IEEE_STATE_AT_SIGNAL:
|
|
case SSI_IEEE_IGNORE_STATE_AT_SIGNAL:
|
|
-- Not implemented in linux kernel
|
|
*/
|
|
}
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_osf_sigprocmask
|
|
/* Alpha specific. */
|
|
case TARGET_NR_osf_sigprocmask:
|
|
{
|
|
abi_ulong mask;
|
|
int how;
|
|
sigset_t set, oldset;
|
|
|
|
switch(arg1) {
|
|
case TARGET_SIG_BLOCK:
|
|
how = SIG_BLOCK;
|
|
break;
|
|
case TARGET_SIG_UNBLOCK:
|
|
how = SIG_UNBLOCK;
|
|
break;
|
|
case TARGET_SIG_SETMASK:
|
|
how = SIG_SETMASK;
|
|
break;
|
|
default:
|
|
return -TARGET_EINVAL;
|
|
}
|
|
mask = arg2;
|
|
target_to_host_old_sigset(&set, &mask);
|
|
ret = do_sigprocmask(how, &set, &oldset);
|
|
if (!ret) {
|
|
host_to_target_old_sigset(&mask, &oldset);
|
|
ret = mask;
|
|
}
|
|
}
|
|
return ret;
|
|
#endif
|
|
|
|
#ifdef TARGET_NR_getgid32
|
|
case TARGET_NR_getgid32:
|
|
return get_errno(getgid());
|
|
#endif
|
|
#ifdef TARGET_NR_geteuid32
|
|
case TARGET_NR_geteuid32:
|
|
return get_errno(geteuid());
|
|
#endif
|
|
#ifdef TARGET_NR_getegid32
|
|
case TARGET_NR_getegid32:
|
|
return get_errno(getegid());
|
|
#endif
|
|
#ifdef TARGET_NR_setreuid32
|
|
case TARGET_NR_setreuid32:
|
|
return get_errno(setreuid(arg1, arg2));
|
|
#endif
|
|
#ifdef TARGET_NR_setregid32
|
|
case TARGET_NR_setregid32:
|
|
return get_errno(setregid(arg1, arg2));
|
|
#endif
|
|
#ifdef TARGET_NR_getgroups32
|
|
case TARGET_NR_getgroups32:
|
|
{
|
|
int gidsetsize = arg1;
|
|
uint32_t *target_grouplist;
|
|
gid_t *grouplist;
|
|
int i;
|
|
|
|
grouplist = alloca(gidsetsize * sizeof(gid_t));
|
|
ret = get_errno(getgroups(gidsetsize, grouplist));
|
|
if (gidsetsize == 0)
|
|
return ret;
|
|
if (!is_error(ret)) {
|
|
target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 4, 0);
|
|
if (!target_grouplist) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
for(i = 0;i < ret; i++)
|
|
target_grouplist[i] = tswap32(grouplist[i]);
|
|
unlock_user(target_grouplist, arg2, gidsetsize * 4);
|
|
}
|
|
}
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_setgroups32
|
|
case TARGET_NR_setgroups32:
|
|
{
|
|
int gidsetsize = arg1;
|
|
uint32_t *target_grouplist;
|
|
gid_t *grouplist;
|
|
int i;
|
|
|
|
grouplist = alloca(gidsetsize * sizeof(gid_t));
|
|
target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 4, 1);
|
|
if (!target_grouplist) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
for(i = 0;i < gidsetsize; i++)
|
|
grouplist[i] = tswap32(target_grouplist[i]);
|
|
unlock_user(target_grouplist, arg2, 0);
|
|
return get_errno(setgroups(gidsetsize, grouplist));
|
|
}
|
|
#endif
|
|
#ifdef TARGET_NR_fchown32
|
|
case TARGET_NR_fchown32:
|
|
return get_errno(fchown(arg1, arg2, arg3));
|
|
#endif
|
|
#ifdef TARGET_NR_setresuid32
|
|
case TARGET_NR_setresuid32:
|
|
return get_errno(sys_setresuid(arg1, arg2, arg3));
|
|
#endif
|
|
#ifdef TARGET_NR_getresuid32
|
|
case TARGET_NR_getresuid32:
|
|
{
|
|
uid_t ruid, euid, suid;
|
|
ret = get_errno(getresuid(&ruid, &euid, &suid));
|
|
if (!is_error(ret)) {
|
|
if (put_user_u32(ruid, arg1)
|
|
|| put_user_u32(euid, arg2)
|
|
|| put_user_u32(suid, arg3))
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_setresgid32
|
|
case TARGET_NR_setresgid32:
|
|
return get_errno(sys_setresgid(arg1, arg2, arg3));
|
|
#endif
|
|
#ifdef TARGET_NR_getresgid32
|
|
case TARGET_NR_getresgid32:
|
|
{
|
|
gid_t rgid, egid, sgid;
|
|
ret = get_errno(getresgid(&rgid, &egid, &sgid));
|
|
if (!is_error(ret)) {
|
|
if (put_user_u32(rgid, arg1)
|
|
|| put_user_u32(egid, arg2)
|
|
|| put_user_u32(sgid, arg3))
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_chown32
|
|
case TARGET_NR_chown32:
|
|
if (!(p = lock_user_string(arg1)))
|
|
return -TARGET_EFAULT;
|
|
ret = get_errno(chown(p, arg2, arg3));
|
|
unlock_user(p, arg1, 0);
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_setuid32
|
|
case TARGET_NR_setuid32:
|
|
return get_errno(sys_setuid(arg1));
|
|
#endif
|
|
#ifdef TARGET_NR_setgid32
|
|
case TARGET_NR_setgid32:
|
|
return get_errno(sys_setgid(arg1));
|
|
#endif
|
|
#ifdef TARGET_NR_setfsuid32
|
|
case TARGET_NR_setfsuid32:
|
|
return get_errno(setfsuid(arg1));
|
|
#endif
|
|
#ifdef TARGET_NR_setfsgid32
|
|
case TARGET_NR_setfsgid32:
|
|
return get_errno(setfsgid(arg1));
|
|
#endif
|
|
#ifdef TARGET_NR_mincore
|
|
case TARGET_NR_mincore:
|
|
{
|
|
void *a = lock_user(VERIFY_READ, arg1, arg2, 0);
|
|
if (!a) {
|
|
return -TARGET_ENOMEM;
|
|
}
|
|
p = lock_user_string(arg3);
|
|
if (!p) {
|
|
ret = -TARGET_EFAULT;
|
|
} else {
|
|
ret = get_errno(mincore(a, arg2, p));
|
|
unlock_user(p, arg3, ret);
|
|
}
|
|
unlock_user(a, arg1, 0);
|
|
}
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_arm_fadvise64_64
|
|
case TARGET_NR_arm_fadvise64_64:
|
|
/* arm_fadvise64_64 looks like fadvise64_64 but
|
|
* with different argument order: fd, advice, offset, len
|
|
* rather than the usual fd, offset, len, advice.
|
|
* Note that offset and len are both 64-bit so appear as
|
|
* pairs of 32-bit registers.
|
|
*/
|
|
ret = posix_fadvise(arg1, target_offset64(arg3, arg4),
|
|
target_offset64(arg5, arg6), arg2);
|
|
return -host_to_target_errno(ret);
|
|
#endif
|
|
|
|
#if TARGET_ABI_BITS == 32 && !defined(TARGET_ABI_MIPSN32)
|
|
|
|
#ifdef TARGET_NR_fadvise64_64
|
|
case TARGET_NR_fadvise64_64:
|
|
#if defined(TARGET_PPC) || defined(TARGET_XTENSA)
|
|
/* 6 args: fd, advice, offset (high, low), len (high, low) */
|
|
ret = arg2;
|
|
arg2 = arg3;
|
|
arg3 = arg4;
|
|
arg4 = arg5;
|
|
arg5 = arg6;
|
|
arg6 = ret;
|
|
#else
|
|
/* 6 args: fd, offset (high, low), len (high, low), advice */
|
|
if (regpairs_aligned(cpu_env, num)) {
|
|
/* offset is in (3,4), len in (5,6) and advice in 7 */
|
|
arg2 = arg3;
|
|
arg3 = arg4;
|
|
arg4 = arg5;
|
|
arg5 = arg6;
|
|
arg6 = arg7;
|
|
}
|
|
#endif
|
|
ret = posix_fadvise(arg1, target_offset64(arg2, arg3),
|
|
target_offset64(arg4, arg5), arg6);
|
|
return -host_to_target_errno(ret);
|
|
#endif
|
|
|
|
#ifdef TARGET_NR_fadvise64
|
|
case TARGET_NR_fadvise64:
|
|
/* 5 args: fd, offset (high, low), len, advice */
|
|
if (regpairs_aligned(cpu_env, num)) {
|
|
/* offset is in (3,4), len in 5 and advice in 6 */
|
|
arg2 = arg3;
|
|
arg3 = arg4;
|
|
arg4 = arg5;
|
|
arg5 = arg6;
|
|
}
|
|
ret = posix_fadvise(arg1, target_offset64(arg2, arg3), arg4, arg5);
|
|
return -host_to_target_errno(ret);
|
|
#endif
|
|
|
|
#else /* not a 32-bit ABI */
|
|
#if defined(TARGET_NR_fadvise64_64) || defined(TARGET_NR_fadvise64)
|
|
#ifdef TARGET_NR_fadvise64_64
|
|
case TARGET_NR_fadvise64_64:
|
|
#endif
|
|
#ifdef TARGET_NR_fadvise64
|
|
case TARGET_NR_fadvise64:
|
|
#endif
|
|
#ifdef TARGET_S390X
|
|
switch (arg4) {
|
|
case 4: arg4 = POSIX_FADV_NOREUSE + 1; break; /* make sure it's an invalid value */
|
|
case 5: arg4 = POSIX_FADV_NOREUSE + 2; break; /* ditto */
|
|
case 6: arg4 = POSIX_FADV_DONTNEED; break;
|
|
case 7: arg4 = POSIX_FADV_NOREUSE; break;
|
|
default: break;
|
|
}
|
|
#endif
|
|
return -host_to_target_errno(posix_fadvise(arg1, arg2, arg3, arg4));
|
|
#endif
|
|
#endif /* end of 64-bit ABI fadvise handling */
|
|
|
|
#ifdef TARGET_NR_madvise
|
|
case TARGET_NR_madvise:
|
|
return target_madvise(arg1, arg2, arg3);
|
|
#endif
|
|
#ifdef TARGET_NR_fcntl64
|
|
case TARGET_NR_fcntl64:
|
|
{
|
|
int cmd;
|
|
struct flock64 fl;
|
|
from_flock64_fn *copyfrom = copy_from_user_flock64;
|
|
to_flock64_fn *copyto = copy_to_user_flock64;
|
|
|
|
#ifdef TARGET_ARM
|
|
if (!cpu_env->eabi) {
|
|
copyfrom = copy_from_user_oabi_flock64;
|
|
copyto = copy_to_user_oabi_flock64;
|
|
}
|
|
#endif
|
|
|
|
cmd = target_to_host_fcntl_cmd(arg2);
|
|
if (cmd == -TARGET_EINVAL) {
|
|
return cmd;
|
|
}
|
|
|
|
switch(arg2) {
|
|
case TARGET_F_GETLK64:
|
|
ret = copyfrom(&fl, arg3);
|
|
if (ret) {
|
|
break;
|
|
}
|
|
ret = get_errno(safe_fcntl(arg1, cmd, &fl));
|
|
if (ret == 0) {
|
|
ret = copyto(arg3, &fl);
|
|
}
|
|
break;
|
|
|
|
case TARGET_F_SETLK64:
|
|
case TARGET_F_SETLKW64:
|
|
ret = copyfrom(&fl, arg3);
|
|
if (ret) {
|
|
break;
|
|
}
|
|
ret = get_errno(safe_fcntl(arg1, cmd, &fl));
|
|
break;
|
|
default:
|
|
ret = do_fcntl(arg1, arg2, arg3);
|
|
break;
|
|
}
|
|
return ret;
|
|
}
|
|
#endif
|
|
#ifdef TARGET_NR_cacheflush
|
|
case TARGET_NR_cacheflush:
|
|
/* self-modifying code is handled automatically, so nothing needed */
|
|
return 0;
|
|
#endif
|
|
#ifdef TARGET_NR_getpagesize
|
|
case TARGET_NR_getpagesize:
|
|
return TARGET_PAGE_SIZE;
|
|
#endif
|
|
case TARGET_NR_gettid:
|
|
return get_errno(sys_gettid());
|
|
#ifdef TARGET_NR_readahead
|
|
case TARGET_NR_readahead:
|
|
#if TARGET_ABI_BITS == 32 && !defined(TARGET_ABI_MIPSN32)
|
|
if (regpairs_aligned(cpu_env, num)) {
|
|
arg2 = arg3;
|
|
arg3 = arg4;
|
|
arg4 = arg5;
|
|
}
|
|
ret = get_errno(readahead(arg1, target_offset64(arg2, arg3) , arg4));
|
|
#else
|
|
ret = get_errno(readahead(arg1, arg2, arg3));
|
|
#endif
|
|
return ret;
|
|
#endif
|
|
#ifdef CONFIG_ATTR
|
|
#ifdef TARGET_NR_setxattr
|
|
case TARGET_NR_listxattr:
|
|
case TARGET_NR_llistxattr:
|
|
{
|
|
void *p, *b = 0;
|
|
if (arg2) {
|
|
b = lock_user(VERIFY_WRITE, arg2, arg3, 0);
|
|
if (!b) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
p = lock_user_string(arg1);
|
|
if (p) {
|
|
if (num == TARGET_NR_listxattr) {
|
|
ret = get_errno(listxattr(p, b, arg3));
|
|
} else {
|
|
ret = get_errno(llistxattr(p, b, arg3));
|
|
}
|
|
} else {
|
|
ret = -TARGET_EFAULT;
|
|
}
|
|
unlock_user(p, arg1, 0);
|
|
unlock_user(b, arg2, arg3);
|
|
return ret;
|
|
}
|
|
case TARGET_NR_flistxattr:
|
|
{
|
|
void *b = 0;
|
|
if (arg2) {
|
|
b = lock_user(VERIFY_WRITE, arg2, arg3, 0);
|
|
if (!b) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
ret = get_errno(flistxattr(arg1, b, arg3));
|
|
unlock_user(b, arg2, arg3);
|
|
return ret;
|
|
}
|
|
case TARGET_NR_setxattr:
|
|
case TARGET_NR_lsetxattr:
|
|
{
|
|
void *p, *n, *v = 0;
|
|
if (arg3) {
|
|
v = lock_user(VERIFY_READ, arg3, arg4, 1);
|
|
if (!v) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
p = lock_user_string(arg1);
|
|
n = lock_user_string(arg2);
|
|
if (p && n) {
|
|
if (num == TARGET_NR_setxattr) {
|
|
ret = get_errno(setxattr(p, n, v, arg4, arg5));
|
|
} else {
|
|
ret = get_errno(lsetxattr(p, n, v, arg4, arg5));
|
|
}
|
|
} else {
|
|
ret = -TARGET_EFAULT;
|
|
}
|
|
unlock_user(p, arg1, 0);
|
|
unlock_user(n, arg2, 0);
|
|
unlock_user(v, arg3, 0);
|
|
}
|
|
return ret;
|
|
case TARGET_NR_fsetxattr:
|
|
{
|
|
void *n, *v = 0;
|
|
if (arg3) {
|
|
v = lock_user(VERIFY_READ, arg3, arg4, 1);
|
|
if (!v) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
n = lock_user_string(arg2);
|
|
if (n) {
|
|
ret = get_errno(fsetxattr(arg1, n, v, arg4, arg5));
|
|
} else {
|
|
ret = -TARGET_EFAULT;
|
|
}
|
|
unlock_user(n, arg2, 0);
|
|
unlock_user(v, arg3, 0);
|
|
}
|
|
return ret;
|
|
case TARGET_NR_getxattr:
|
|
case TARGET_NR_lgetxattr:
|
|
{
|
|
void *p, *n, *v = 0;
|
|
if (arg3) {
|
|
v = lock_user(VERIFY_WRITE, arg3, arg4, 0);
|
|
if (!v) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
p = lock_user_string(arg1);
|
|
n = lock_user_string(arg2);
|
|
if (p && n) {
|
|
if (num == TARGET_NR_getxattr) {
|
|
ret = get_errno(getxattr(p, n, v, arg4));
|
|
} else {
|
|
ret = get_errno(lgetxattr(p, n, v, arg4));
|
|
}
|
|
} else {
|
|
ret = -TARGET_EFAULT;
|
|
}
|
|
unlock_user(p, arg1, 0);
|
|
unlock_user(n, arg2, 0);
|
|
unlock_user(v, arg3, arg4);
|
|
}
|
|
return ret;
|
|
case TARGET_NR_fgetxattr:
|
|
{
|
|
void *n, *v = 0;
|
|
if (arg3) {
|
|
v = lock_user(VERIFY_WRITE, arg3, arg4, 0);
|
|
if (!v) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
n = lock_user_string(arg2);
|
|
if (n) {
|
|
ret = get_errno(fgetxattr(arg1, n, v, arg4));
|
|
} else {
|
|
ret = -TARGET_EFAULT;
|
|
}
|
|
unlock_user(n, arg2, 0);
|
|
unlock_user(v, arg3, arg4);
|
|
}
|
|
return ret;
|
|
case TARGET_NR_removexattr:
|
|
case TARGET_NR_lremovexattr:
|
|
{
|
|
void *p, *n;
|
|
p = lock_user_string(arg1);
|
|
n = lock_user_string(arg2);
|
|
if (p && n) {
|
|
if (num == TARGET_NR_removexattr) {
|
|
ret = get_errno(removexattr(p, n));
|
|
} else {
|
|
ret = get_errno(lremovexattr(p, n));
|
|
}
|
|
} else {
|
|
ret = -TARGET_EFAULT;
|
|
}
|
|
unlock_user(p, arg1, 0);
|
|
unlock_user(n, arg2, 0);
|
|
}
|
|
return ret;
|
|
case TARGET_NR_fremovexattr:
|
|
{
|
|
void *n;
|
|
n = lock_user_string(arg2);
|
|
if (n) {
|
|
ret = get_errno(fremovexattr(arg1, n));
|
|
} else {
|
|
ret = -TARGET_EFAULT;
|
|
}
|
|
unlock_user(n, arg2, 0);
|
|
}
|
|
return ret;
|
|
#endif
|
|
#endif /* CONFIG_ATTR */
|
|
#ifdef TARGET_NR_set_thread_area
|
|
case TARGET_NR_set_thread_area:
|
|
#if defined(TARGET_MIPS)
|
|
cpu_env->active_tc.CP0_UserLocal = arg1;
|
|
return 0;
|
|
#elif defined(TARGET_CRIS)
|
|
if (arg1 & 0xff)
|
|
ret = -TARGET_EINVAL;
|
|
else {
|
|
cpu_env->pregs[PR_PID] = arg1;
|
|
ret = 0;
|
|
}
|
|
return ret;
|
|
#elif defined(TARGET_I386) && defined(TARGET_ABI32)
|
|
return do_set_thread_area(cpu_env, arg1);
|
|
#elif defined(TARGET_M68K)
|
|
{
|
|
TaskState *ts = cpu->opaque;
|
|
ts->tp_value = arg1;
|
|
return 0;
|
|
}
|
|
#else
|
|
return -TARGET_ENOSYS;
|
|
#endif
|
|
#endif
|
|
#ifdef TARGET_NR_get_thread_area
|
|
case TARGET_NR_get_thread_area:
|
|
#if defined(TARGET_I386) && defined(TARGET_ABI32)
|
|
return do_get_thread_area(cpu_env, arg1);
|
|
#elif defined(TARGET_M68K)
|
|
{
|
|
TaskState *ts = cpu->opaque;
|
|
return ts->tp_value;
|
|
}
|
|
#else
|
|
return -TARGET_ENOSYS;
|
|
#endif
|
|
#endif
|
|
#ifdef TARGET_NR_getdomainname
|
|
case TARGET_NR_getdomainname:
|
|
return -TARGET_ENOSYS;
|
|
#endif
|
|
|
|
#ifdef TARGET_NR_clock_settime
|
|
case TARGET_NR_clock_settime:
|
|
{
|
|
struct timespec ts;
|
|
|
|
ret = target_to_host_timespec(&ts, arg2);
|
|
if (!is_error(ret)) {
|
|
ret = get_errno(clock_settime(arg1, &ts));
|
|
}
|
|
return ret;
|
|
}
|
|
#endif
|
|
#ifdef TARGET_NR_clock_settime64
|
|
case TARGET_NR_clock_settime64:
|
|
{
|
|
struct timespec ts;
|
|
|
|
ret = target_to_host_timespec64(&ts, arg2);
|
|
if (!is_error(ret)) {
|
|
ret = get_errno(clock_settime(arg1, &ts));
|
|
}
|
|
return ret;
|
|
}
|
|
#endif
|
|
#ifdef TARGET_NR_clock_gettime
|
|
case TARGET_NR_clock_gettime:
|
|
{
|
|
struct timespec ts;
|
|
ret = get_errno(clock_gettime(arg1, &ts));
|
|
if (!is_error(ret)) {
|
|
ret = host_to_target_timespec(arg2, &ts);
|
|
}
|
|
return ret;
|
|
}
|
|
#endif
|
|
#ifdef TARGET_NR_clock_gettime64
|
|
case TARGET_NR_clock_gettime64:
|
|
{
|
|
struct timespec ts;
|
|
ret = get_errno(clock_gettime(arg1, &ts));
|
|
if (!is_error(ret)) {
|
|
ret = host_to_target_timespec64(arg2, &ts);
|
|
}
|
|
return ret;
|
|
}
|
|
#endif
|
|
#ifdef TARGET_NR_clock_getres
|
|
case TARGET_NR_clock_getres:
|
|
{
|
|
struct timespec ts;
|
|
ret = get_errno(clock_getres(arg1, &ts));
|
|
if (!is_error(ret)) {
|
|
host_to_target_timespec(arg2, &ts);
|
|
}
|
|
return ret;
|
|
}
|
|
#endif
|
|
#ifdef TARGET_NR_clock_getres_time64
|
|
case TARGET_NR_clock_getres_time64:
|
|
{
|
|
struct timespec ts;
|
|
ret = get_errno(clock_getres(arg1, &ts));
|
|
if (!is_error(ret)) {
|
|
host_to_target_timespec64(arg2, &ts);
|
|
}
|
|
return ret;
|
|
}
|
|
#endif
|
|
#ifdef TARGET_NR_clock_nanosleep
|
|
case TARGET_NR_clock_nanosleep:
|
|
{
|
|
struct timespec ts;
|
|
if (target_to_host_timespec(&ts, arg3)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = get_errno(safe_clock_nanosleep(arg1, arg2,
|
|
&ts, arg4 ? &ts : NULL));
|
|
/*
|
|
* if the call is interrupted by a signal handler, it fails
|
|
* with error -TARGET_EINTR and if arg4 is not NULL and arg2 is not
|
|
* TIMER_ABSTIME, it returns the remaining unslept time in arg4.
|
|
*/
|
|
if (ret == -TARGET_EINTR && arg4 && arg2 != TIMER_ABSTIME &&
|
|
host_to_target_timespec(arg4, &ts)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
#endif
|
|
#ifdef TARGET_NR_clock_nanosleep_time64
|
|
case TARGET_NR_clock_nanosleep_time64:
|
|
{
|
|
struct timespec ts;
|
|
|
|
if (target_to_host_timespec64(&ts, arg3)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
ret = get_errno(safe_clock_nanosleep(arg1, arg2,
|
|
&ts, arg4 ? &ts : NULL));
|
|
|
|
if (ret == -TARGET_EINTR && arg4 && arg2 != TIMER_ABSTIME &&
|
|
host_to_target_timespec64(arg4, &ts)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_set_tid_address)
|
|
case TARGET_NR_set_tid_address:
|
|
{
|
|
TaskState *ts = cpu->opaque;
|
|
ts->child_tidptr = arg1;
|
|
/* do not call host set_tid_address() syscall, instead return tid() */
|
|
return get_errno(sys_gettid());
|
|
}
|
|
#endif
|
|
|
|
case TARGET_NR_tkill:
|
|
return get_errno(safe_tkill((int)arg1, target_to_host_signal(arg2)));
|
|
|
|
case TARGET_NR_tgkill:
|
|
return get_errno(safe_tgkill((int)arg1, (int)arg2,
|
|
target_to_host_signal(arg3)));
|
|
|
|
#ifdef TARGET_NR_set_robust_list
|
|
case TARGET_NR_set_robust_list:
|
|
case TARGET_NR_get_robust_list:
|
|
/* The ABI for supporting robust futexes has userspace pass
|
|
* the kernel a pointer to a linked list which is updated by
|
|
* userspace after the syscall; the list is walked by the kernel
|
|
* when the thread exits. Since the linked list in QEMU guest
|
|
* memory isn't a valid linked list for the host and we have
|
|
* no way to reliably intercept the thread-death event, we can't
|
|
* support these. Silently return ENOSYS so that guest userspace
|
|
* falls back to a non-robust futex implementation (which should
|
|
* be OK except in the corner case of the guest crashing while
|
|
* holding a mutex that is shared with another process via
|
|
* shared memory).
|
|
*/
|
|
return -TARGET_ENOSYS;
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_utimensat)
|
|
case TARGET_NR_utimensat:
|
|
{
|
|
struct timespec *tsp, ts[2];
|
|
if (!arg3) {
|
|
tsp = NULL;
|
|
} else {
|
|
if (target_to_host_timespec(ts, arg3)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
if (target_to_host_timespec(ts + 1, arg3 +
|
|
sizeof(struct target_timespec))) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
tsp = ts;
|
|
}
|
|
if (!arg2)
|
|
ret = get_errno(sys_utimensat(arg1, NULL, tsp, arg4));
|
|
else {
|
|
if (!(p = lock_user_string(arg2))) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = get_errno(sys_utimensat(arg1, path(p), tsp, arg4));
|
|
unlock_user(p, arg2, 0);
|
|
}
|
|
}
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_utimensat_time64
|
|
case TARGET_NR_utimensat_time64:
|
|
{
|
|
struct timespec *tsp, ts[2];
|
|
if (!arg3) {
|
|
tsp = NULL;
|
|
} else {
|
|
if (target_to_host_timespec64(ts, arg3)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
if (target_to_host_timespec64(ts + 1, arg3 +
|
|
sizeof(struct target__kernel_timespec))) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
tsp = ts;
|
|
}
|
|
if (!arg2)
|
|
ret = get_errno(sys_utimensat(arg1, NULL, tsp, arg4));
|
|
else {
|
|
p = lock_user_string(arg2);
|
|
if (!p) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = get_errno(sys_utimensat(arg1, path(p), tsp, arg4));
|
|
unlock_user(p, arg2, 0);
|
|
}
|
|
}
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_futex
|
|
case TARGET_NR_futex:
|
|
return do_futex(cpu, false, arg1, arg2, arg3, arg4, arg5, arg6);
|
|
#endif
|
|
#ifdef TARGET_NR_futex_time64
|
|
case TARGET_NR_futex_time64:
|
|
return do_futex(cpu, true, arg1, arg2, arg3, arg4, arg5, arg6);
|
|
#endif
|
|
#ifdef CONFIG_INOTIFY
|
|
#if defined(TARGET_NR_inotify_init)
|
|
case TARGET_NR_inotify_init:
|
|
ret = get_errno(inotify_init());
|
|
if (ret >= 0) {
|
|
fd_trans_register(ret, &target_inotify_trans);
|
|
}
|
|
return ret;
|
|
#endif
|
|
#if defined(TARGET_NR_inotify_init1) && defined(CONFIG_INOTIFY1)
|
|
case TARGET_NR_inotify_init1:
|
|
ret = get_errno(inotify_init1(target_to_host_bitmask(arg1,
|
|
fcntl_flags_tbl)));
|
|
if (ret >= 0) {
|
|
fd_trans_register(ret, &target_inotify_trans);
|
|
}
|
|
return ret;
|
|
#endif
|
|
#if defined(TARGET_NR_inotify_add_watch)
|
|
case TARGET_NR_inotify_add_watch:
|
|
p = lock_user_string(arg2);
|
|
ret = get_errno(inotify_add_watch(arg1, path(p), arg3));
|
|
unlock_user(p, arg2, 0);
|
|
return ret;
|
|
#endif
|
|
#if defined(TARGET_NR_inotify_rm_watch)
|
|
case TARGET_NR_inotify_rm_watch:
|
|
return get_errno(inotify_rm_watch(arg1, arg2));
|
|
#endif
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
|
|
case TARGET_NR_mq_open:
|
|
{
|
|
struct mq_attr posix_mq_attr;
|
|
struct mq_attr *pposix_mq_attr;
|
|
int host_flags;
|
|
|
|
host_flags = target_to_host_bitmask(arg2, fcntl_flags_tbl);
|
|
pposix_mq_attr = NULL;
|
|
if (arg4) {
|
|
if (copy_from_user_mq_attr(&posix_mq_attr, arg4) != 0) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
pposix_mq_attr = &posix_mq_attr;
|
|
}
|
|
p = lock_user_string(arg1 - 1);
|
|
if (!p) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = get_errno(mq_open(p, host_flags, arg3, pposix_mq_attr));
|
|
unlock_user (p, arg1, 0);
|
|
}
|
|
return ret;
|
|
|
|
case TARGET_NR_mq_unlink:
|
|
p = lock_user_string(arg1 - 1);
|
|
if (!p) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = get_errno(mq_unlink(p));
|
|
unlock_user (p, arg1, 0);
|
|
return ret;
|
|
|
|
#ifdef TARGET_NR_mq_timedsend
|
|
case TARGET_NR_mq_timedsend:
|
|
{
|
|
struct timespec ts;
|
|
|
|
p = lock_user (VERIFY_READ, arg2, arg3, 1);
|
|
if (arg5 != 0) {
|
|
if (target_to_host_timespec(&ts, arg5)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = get_errno(safe_mq_timedsend(arg1, p, arg3, arg4, &ts));
|
|
if (!is_error(ret) && host_to_target_timespec(arg5, &ts)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
} else {
|
|
ret = get_errno(safe_mq_timedsend(arg1, p, arg3, arg4, NULL));
|
|
}
|
|
unlock_user (p, arg2, arg3);
|
|
}
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_mq_timedsend_time64
|
|
case TARGET_NR_mq_timedsend_time64:
|
|
{
|
|
struct timespec ts;
|
|
|
|
p = lock_user(VERIFY_READ, arg2, arg3, 1);
|
|
if (arg5 != 0) {
|
|
if (target_to_host_timespec64(&ts, arg5)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = get_errno(safe_mq_timedsend(arg1, p, arg3, arg4, &ts));
|
|
if (!is_error(ret) && host_to_target_timespec64(arg5, &ts)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
} else {
|
|
ret = get_errno(safe_mq_timedsend(arg1, p, arg3, arg4, NULL));
|
|
}
|
|
unlock_user(p, arg2, arg3);
|
|
}
|
|
return ret;
|
|
#endif
|
|
|
|
#ifdef TARGET_NR_mq_timedreceive
|
|
case TARGET_NR_mq_timedreceive:
|
|
{
|
|
struct timespec ts;
|
|
unsigned int prio;
|
|
|
|
p = lock_user (VERIFY_READ, arg2, arg3, 1);
|
|
if (arg5 != 0) {
|
|
if (target_to_host_timespec(&ts, arg5)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = get_errno(safe_mq_timedreceive(arg1, p, arg3,
|
|
&prio, &ts));
|
|
if (!is_error(ret) && host_to_target_timespec(arg5, &ts)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
} else {
|
|
ret = get_errno(safe_mq_timedreceive(arg1, p, arg3,
|
|
&prio, NULL));
|
|
}
|
|
unlock_user (p, arg2, arg3);
|
|
if (arg4 != 0)
|
|
put_user_u32(prio, arg4);
|
|
}
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_mq_timedreceive_time64
|
|
case TARGET_NR_mq_timedreceive_time64:
|
|
{
|
|
struct timespec ts;
|
|
unsigned int prio;
|
|
|
|
p = lock_user(VERIFY_READ, arg2, arg3, 1);
|
|
if (arg5 != 0) {
|
|
if (target_to_host_timespec64(&ts, arg5)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = get_errno(safe_mq_timedreceive(arg1, p, arg3,
|
|
&prio, &ts));
|
|
if (!is_error(ret) && host_to_target_timespec64(arg5, &ts)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
} else {
|
|
ret = get_errno(safe_mq_timedreceive(arg1, p, arg3,
|
|
&prio, NULL));
|
|
}
|
|
unlock_user(p, arg2, arg3);
|
|
if (arg4 != 0) {
|
|
put_user_u32(prio, arg4);
|
|
}
|
|
}
|
|
return ret;
|
|
#endif
|
|
|
|
/* Not implemented for now... */
|
|
/* case TARGET_NR_mq_notify: */
|
|
/* break; */
|
|
|
|
case TARGET_NR_mq_getsetattr:
|
|
{
|
|
struct mq_attr posix_mq_attr_in, posix_mq_attr_out;
|
|
ret = 0;
|
|
if (arg2 != 0) {
|
|
copy_from_user_mq_attr(&posix_mq_attr_in, arg2);
|
|
ret = get_errno(mq_setattr(arg1, &posix_mq_attr_in,
|
|
&posix_mq_attr_out));
|
|
} else if (arg3 != 0) {
|
|
ret = get_errno(mq_getattr(arg1, &posix_mq_attr_out));
|
|
}
|
|
if (ret == 0 && arg3 != 0) {
|
|
copy_to_user_mq_attr(arg3, &posix_mq_attr_out);
|
|
}
|
|
}
|
|
return ret;
|
|
#endif
|
|
|
|
#ifdef CONFIG_SPLICE
|
|
#ifdef TARGET_NR_tee
|
|
case TARGET_NR_tee:
|
|
{
|
|
ret = get_errno(tee(arg1,arg2,arg3,arg4));
|
|
}
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_splice
|
|
case TARGET_NR_splice:
|
|
{
|
|
loff_t loff_in, loff_out;
|
|
loff_t *ploff_in = NULL, *ploff_out = NULL;
|
|
if (arg2) {
|
|
if (get_user_u64(loff_in, arg2)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ploff_in = &loff_in;
|
|
}
|
|
if (arg4) {
|
|
if (get_user_u64(loff_out, arg4)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ploff_out = &loff_out;
|
|
}
|
|
ret = get_errno(splice(arg1, ploff_in, arg3, ploff_out, arg5, arg6));
|
|
if (arg2) {
|
|
if (put_user_u64(loff_in, arg2)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
if (arg4) {
|
|
if (put_user_u64(loff_out, arg4)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
}
|
|
return ret;
|
|
#endif
|
|
#ifdef TARGET_NR_vmsplice
|
|
case TARGET_NR_vmsplice:
|
|
{
|
|
struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1);
|
|
if (vec != NULL) {
|
|
ret = get_errno(vmsplice(arg1, vec, arg3, arg4));
|
|
unlock_iovec(vec, arg2, arg3, 0);
|
|
} else {
|
|
ret = -host_to_target_errno(errno);
|
|
}
|
|
}
|
|
return ret;
|
|
#endif
|
|
#endif /* CONFIG_SPLICE */
|
|
#ifdef CONFIG_EVENTFD
|
|
#if defined(TARGET_NR_eventfd)
|
|
case TARGET_NR_eventfd:
|
|
ret = get_errno(eventfd(arg1, 0));
|
|
if (ret >= 0) {
|
|
fd_trans_register(ret, &target_eventfd_trans);
|
|
}
|
|
return ret;
|
|
#endif
|
|
#if defined(TARGET_NR_eventfd2)
|
|
case TARGET_NR_eventfd2:
|
|
{
|
|
int host_flags = arg2 & (~(TARGET_O_NONBLOCK_MASK | TARGET_O_CLOEXEC));
|
|
if (arg2 & TARGET_O_NONBLOCK) {
|
|
host_flags |= O_NONBLOCK;
|
|
}
|
|
if (arg2 & TARGET_O_CLOEXEC) {
|
|
host_flags |= O_CLOEXEC;
|
|
}
|
|
ret = get_errno(eventfd(arg1, host_flags));
|
|
if (ret >= 0) {
|
|
fd_trans_register(ret, &target_eventfd_trans);
|
|
}
|
|
return ret;
|
|
}
|
|
#endif
|
|
#endif /* CONFIG_EVENTFD */
|
|
#if defined(CONFIG_FALLOCATE) && defined(TARGET_NR_fallocate)
|
|
case TARGET_NR_fallocate:
|
|
#if TARGET_ABI_BITS == 32 && !defined(TARGET_ABI_MIPSN32)
|
|
ret = get_errno(fallocate(arg1, arg2, target_offset64(arg3, arg4),
|
|
target_offset64(arg5, arg6)));
|
|
#else
|
|
ret = get_errno(fallocate(arg1, arg2, arg3, arg4));
|
|
#endif
|
|
return ret;
|
|
#endif
|
|
#if defined(CONFIG_SYNC_FILE_RANGE)
|
|
#if defined(TARGET_NR_sync_file_range)
|
|
case TARGET_NR_sync_file_range:
|
|
#if TARGET_ABI_BITS == 32 && !defined(TARGET_ABI_MIPSN32)
|
|
#if defined(TARGET_MIPS)
|
|
ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4),
|
|
target_offset64(arg5, arg6), arg7));
|
|
#else
|
|
ret = get_errno(sync_file_range(arg1, target_offset64(arg2, arg3),
|
|
target_offset64(arg4, arg5), arg6));
|
|
#endif /* !TARGET_MIPS */
|
|
#else
|
|
ret = get_errno(sync_file_range(arg1, arg2, arg3, arg4));
|
|
#endif
|
|
return ret;
|
|
#endif
|
|
#if defined(TARGET_NR_sync_file_range2) || \
|
|
defined(TARGET_NR_arm_sync_file_range)
|
|
#if defined(TARGET_NR_sync_file_range2)
|
|
case TARGET_NR_sync_file_range2:
|
|
#endif
|
|
#if defined(TARGET_NR_arm_sync_file_range)
|
|
case TARGET_NR_arm_sync_file_range:
|
|
#endif
|
|
/* This is like sync_file_range but the arguments are reordered */
|
|
#if TARGET_ABI_BITS == 32 && !defined(TARGET_ABI_MIPSN32)
|
|
ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4),
|
|
target_offset64(arg5, arg6), arg2));
|
|
#else
|
|
ret = get_errno(sync_file_range(arg1, arg3, arg4, arg2));
|
|
#endif
|
|
return ret;
|
|
#endif
|
|
#endif
|
|
#if defined(TARGET_NR_signalfd4)
|
|
case TARGET_NR_signalfd4:
|
|
return do_signalfd4(arg1, arg2, arg4);
|
|
#endif
|
|
#if defined(TARGET_NR_signalfd)
|
|
case TARGET_NR_signalfd:
|
|
return do_signalfd4(arg1, arg2, 0);
|
|
#endif
|
|
#if defined(CONFIG_EPOLL)
|
|
#if defined(TARGET_NR_epoll_create)
|
|
case TARGET_NR_epoll_create:
|
|
return get_errno(epoll_create(arg1));
|
|
#endif
|
|
#if defined(TARGET_NR_epoll_create1) && defined(CONFIG_EPOLL_CREATE1)
|
|
case TARGET_NR_epoll_create1:
|
|
return get_errno(epoll_create1(target_to_host_bitmask(arg1, fcntl_flags_tbl)));
|
|
#endif
|
|
#if defined(TARGET_NR_epoll_ctl)
|
|
case TARGET_NR_epoll_ctl:
|
|
{
|
|
struct epoll_event ep;
|
|
struct epoll_event *epp = 0;
|
|
if (arg4) {
|
|
if (arg2 != EPOLL_CTL_DEL) {
|
|
struct target_epoll_event *target_ep;
|
|
if (!lock_user_struct(VERIFY_READ, target_ep, arg4, 1)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ep.events = tswap32(target_ep->events);
|
|
/*
|
|
* The epoll_data_t union is just opaque data to the kernel,
|
|
* so we transfer all 64 bits across and need not worry what
|
|
* actual data type it is.
|
|
*/
|
|
ep.data.u64 = tswap64(target_ep->data.u64);
|
|
unlock_user_struct(target_ep, arg4, 0);
|
|
}
|
|
/*
|
|
* before kernel 2.6.9, EPOLL_CTL_DEL operation required a
|
|
* non-null pointer, even though this argument is ignored.
|
|
*
|
|
*/
|
|
epp = &ep;
|
|
}
|
|
return get_errno(epoll_ctl(arg1, arg2, arg3, epp));
|
|
}
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_epoll_wait) || defined(TARGET_NR_epoll_pwait)
|
|
#if defined(TARGET_NR_epoll_wait)
|
|
case TARGET_NR_epoll_wait:
|
|
#endif
|
|
#if defined(TARGET_NR_epoll_pwait)
|
|
case TARGET_NR_epoll_pwait:
|
|
#endif
|
|
{
|
|
struct target_epoll_event *target_ep;
|
|
struct epoll_event *ep;
|
|
int epfd = arg1;
|
|
int maxevents = arg3;
|
|
int timeout = arg4;
|
|
|
|
if (maxevents <= 0 || maxevents > TARGET_EP_MAX_EVENTS) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
target_ep = lock_user(VERIFY_WRITE, arg2,
|
|
maxevents * sizeof(struct target_epoll_event), 1);
|
|
if (!target_ep) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
ep = g_try_new(struct epoll_event, maxevents);
|
|
if (!ep) {
|
|
unlock_user(target_ep, arg2, 0);
|
|
return -TARGET_ENOMEM;
|
|
}
|
|
|
|
switch (num) {
|
|
#if defined(TARGET_NR_epoll_pwait)
|
|
case TARGET_NR_epoll_pwait:
|
|
{
|
|
sigset_t *set = NULL;
|
|
|
|
if (arg5) {
|
|
ret = process_sigsuspend_mask(&set, arg5, arg6);
|
|
if (ret != 0) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
ret = get_errno(safe_epoll_pwait(epfd, ep, maxevents, timeout,
|
|
set, SIGSET_T_SIZE));
|
|
|
|
if (set) {
|
|
finish_sigsuspend_mask(ret);
|
|
}
|
|
break;
|
|
}
|
|
#endif
|
|
#if defined(TARGET_NR_epoll_wait)
|
|
case TARGET_NR_epoll_wait:
|
|
ret = get_errno(safe_epoll_pwait(epfd, ep, maxevents, timeout,
|
|
NULL, 0));
|
|
break;
|
|
#endif
|
|
default:
|
|
ret = -TARGET_ENOSYS;
|
|
}
|
|
if (!is_error(ret)) {
|
|
int i;
|
|
for (i = 0; i < ret; i++) {
|
|
target_ep[i].events = tswap32(ep[i].events);
|
|
target_ep[i].data.u64 = tswap64(ep[i].data.u64);
|
|
}
|
|
unlock_user(target_ep, arg2,
|
|
ret * sizeof(struct target_epoll_event));
|
|
} else {
|
|
unlock_user(target_ep, arg2, 0);
|
|
}
|
|
g_free(ep);
|
|
return ret;
|
|
}
|
|
#endif
|
|
#endif
|
|
#ifdef TARGET_NR_prlimit64
|
|
case TARGET_NR_prlimit64:
|
|
{
|
|
/* args: pid, resource number, ptr to new rlimit, ptr to old rlimit */
|
|
struct target_rlimit64 *target_rnew, *target_rold;
|
|
struct host_rlimit64 rnew, rold, *rnewp = 0;
|
|
int resource = target_to_host_resource(arg2);
|
|
|
|
if (arg3 && (resource != RLIMIT_AS &&
|
|
resource != RLIMIT_DATA &&
|
|
resource != RLIMIT_STACK)) {
|
|
if (!lock_user_struct(VERIFY_READ, target_rnew, arg3, 1)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
rnew.rlim_cur = tswap64(target_rnew->rlim_cur);
|
|
rnew.rlim_max = tswap64(target_rnew->rlim_max);
|
|
unlock_user_struct(target_rnew, arg3, 0);
|
|
rnewp = &rnew;
|
|
}
|
|
|
|
ret = get_errno(sys_prlimit64(arg1, resource, rnewp, arg4 ? &rold : 0));
|
|
if (!is_error(ret) && arg4) {
|
|
if (!lock_user_struct(VERIFY_WRITE, target_rold, arg4, 1)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
target_rold->rlim_cur = tswap64(rold.rlim_cur);
|
|
target_rold->rlim_max = tswap64(rold.rlim_max);
|
|
unlock_user_struct(target_rold, arg4, 1);
|
|
}
|
|
return ret;
|
|
}
|
|
#endif
|
|
#ifdef TARGET_NR_gethostname
|
|
case TARGET_NR_gethostname:
|
|
{
|
|
char *name = lock_user(VERIFY_WRITE, arg1, arg2, 0);
|
|
if (name) {
|
|
ret = get_errno(gethostname(name, arg2));
|
|
unlock_user(name, arg1, arg2);
|
|
} else {
|
|
ret = -TARGET_EFAULT;
|
|
}
|
|
return ret;
|
|
}
|
|
#endif
|
|
#ifdef TARGET_NR_atomic_cmpxchg_32
|
|
case TARGET_NR_atomic_cmpxchg_32:
|
|
{
|
|
/* should use start_exclusive from main.c */
|
|
abi_ulong mem_value;
|
|
if (get_user_u32(mem_value, arg6)) {
|
|
target_siginfo_t info;
|
|
info.si_signo = SIGSEGV;
|
|
info.si_errno = 0;
|
|
info.si_code = TARGET_SEGV_MAPERR;
|
|
info._sifields._sigfault._addr = arg6;
|
|
queue_signal(cpu_env, info.si_signo, QEMU_SI_FAULT, &info);
|
|
ret = 0xdeadbeef;
|
|
|
|
}
|
|
if (mem_value == arg2)
|
|
put_user_u32(arg1, arg6);
|
|
return mem_value;
|
|
}
|
|
#endif
|
|
#ifdef TARGET_NR_atomic_barrier
|
|
case TARGET_NR_atomic_barrier:
|
|
/* Like the kernel implementation and the
|
|
qemu arm barrier, no-op this? */
|
|
return 0;
|
|
#endif
|
|
|
|
#ifdef TARGET_NR_timer_create
|
|
case TARGET_NR_timer_create:
|
|
{
|
|
/* args: clockid_t clockid, struct sigevent *sevp, timer_t *timerid */
|
|
|
|
struct sigevent host_sevp = { {0}, }, *phost_sevp = NULL;
|
|
|
|
int clkid = arg1;
|
|
int timer_index = next_free_host_timer();
|
|
|
|
if (timer_index < 0) {
|
|
ret = -TARGET_EAGAIN;
|
|
} else {
|
|
timer_t *phtimer = g_posix_timers + timer_index;
|
|
|
|
if (arg2) {
|
|
phost_sevp = &host_sevp;
|
|
ret = target_to_host_sigevent(phost_sevp, arg2);
|
|
if (ret != 0) {
|
|
free_host_timer_slot(timer_index);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
ret = get_errno(timer_create(clkid, phost_sevp, phtimer));
|
|
if (ret) {
|
|
free_host_timer_slot(timer_index);
|
|
} else {
|
|
if (put_user(TIMER_MAGIC | timer_index, arg3, target_timer_t)) {
|
|
timer_delete(*phtimer);
|
|
free_host_timer_slot(timer_index);
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
#ifdef TARGET_NR_timer_settime
|
|
case TARGET_NR_timer_settime:
|
|
{
|
|
/* args: timer_t timerid, int flags, const struct itimerspec *new_value,
|
|
* struct itimerspec * old_value */
|
|
target_timer_t timerid = get_timer_id(arg1);
|
|
|
|
if (timerid < 0) {
|
|
ret = timerid;
|
|
} else if (arg3 == 0) {
|
|
ret = -TARGET_EINVAL;
|
|
} else {
|
|
timer_t htimer = g_posix_timers[timerid];
|
|
struct itimerspec hspec_new = {{0},}, hspec_old = {{0},};
|
|
|
|
if (target_to_host_itimerspec(&hspec_new, arg3)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = get_errno(
|
|
timer_settime(htimer, arg2, &hspec_new, &hspec_old));
|
|
if (arg4 && host_to_target_itimerspec(arg4, &hspec_old)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
#ifdef TARGET_NR_timer_settime64
|
|
case TARGET_NR_timer_settime64:
|
|
{
|
|
target_timer_t timerid = get_timer_id(arg1);
|
|
|
|
if (timerid < 0) {
|
|
ret = timerid;
|
|
} else if (arg3 == 0) {
|
|
ret = -TARGET_EINVAL;
|
|
} else {
|
|
timer_t htimer = g_posix_timers[timerid];
|
|
struct itimerspec hspec_new = {{0},}, hspec_old = {{0},};
|
|
|
|
if (target_to_host_itimerspec64(&hspec_new, arg3)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = get_errno(
|
|
timer_settime(htimer, arg2, &hspec_new, &hspec_old));
|
|
if (arg4 && host_to_target_itimerspec64(arg4, &hspec_old)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
#ifdef TARGET_NR_timer_gettime
|
|
case TARGET_NR_timer_gettime:
|
|
{
|
|
/* args: timer_t timerid, struct itimerspec *curr_value */
|
|
target_timer_t timerid = get_timer_id(arg1);
|
|
|
|
if (timerid < 0) {
|
|
ret = timerid;
|
|
} else if (!arg2) {
|
|
ret = -TARGET_EFAULT;
|
|
} else {
|
|
timer_t htimer = g_posix_timers[timerid];
|
|
struct itimerspec hspec;
|
|
ret = get_errno(timer_gettime(htimer, &hspec));
|
|
|
|
if (host_to_target_itimerspec(arg2, &hspec)) {
|
|
ret = -TARGET_EFAULT;
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
#ifdef TARGET_NR_timer_gettime64
|
|
case TARGET_NR_timer_gettime64:
|
|
{
|
|
/* args: timer_t timerid, struct itimerspec64 *curr_value */
|
|
target_timer_t timerid = get_timer_id(arg1);
|
|
|
|
if (timerid < 0) {
|
|
ret = timerid;
|
|
} else if (!arg2) {
|
|
ret = -TARGET_EFAULT;
|
|
} else {
|
|
timer_t htimer = g_posix_timers[timerid];
|
|
struct itimerspec hspec;
|
|
ret = get_errno(timer_gettime(htimer, &hspec));
|
|
|
|
if (host_to_target_itimerspec64(arg2, &hspec)) {
|
|
ret = -TARGET_EFAULT;
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
#ifdef TARGET_NR_timer_getoverrun
|
|
case TARGET_NR_timer_getoverrun:
|
|
{
|
|
/* args: timer_t timerid */
|
|
target_timer_t timerid = get_timer_id(arg1);
|
|
|
|
if (timerid < 0) {
|
|
ret = timerid;
|
|
} else {
|
|
timer_t htimer = g_posix_timers[timerid];
|
|
ret = get_errno(timer_getoverrun(htimer));
|
|
}
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
#ifdef TARGET_NR_timer_delete
|
|
case TARGET_NR_timer_delete:
|
|
{
|
|
/* args: timer_t timerid */
|
|
target_timer_t timerid = get_timer_id(arg1);
|
|
|
|
if (timerid < 0) {
|
|
ret = timerid;
|
|
} else {
|
|
timer_t htimer = g_posix_timers[timerid];
|
|
ret = get_errno(timer_delete(htimer));
|
|
free_host_timer_slot(timerid);
|
|
}
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_timerfd_create) && defined(CONFIG_TIMERFD)
|
|
case TARGET_NR_timerfd_create:
|
|
return get_errno(timerfd_create(arg1,
|
|
target_to_host_bitmask(arg2, fcntl_flags_tbl)));
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_timerfd_gettime) && defined(CONFIG_TIMERFD)
|
|
case TARGET_NR_timerfd_gettime:
|
|
{
|
|
struct itimerspec its_curr;
|
|
|
|
ret = get_errno(timerfd_gettime(arg1, &its_curr));
|
|
|
|
if (arg2 && host_to_target_itimerspec(arg2, &its_curr)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
return ret;
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_timerfd_gettime64) && defined(CONFIG_TIMERFD)
|
|
case TARGET_NR_timerfd_gettime64:
|
|
{
|
|
struct itimerspec its_curr;
|
|
|
|
ret = get_errno(timerfd_gettime(arg1, &its_curr));
|
|
|
|
if (arg2 && host_to_target_itimerspec64(arg2, &its_curr)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
return ret;
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_timerfd_settime) && defined(CONFIG_TIMERFD)
|
|
case TARGET_NR_timerfd_settime:
|
|
{
|
|
struct itimerspec its_new, its_old, *p_new;
|
|
|
|
if (arg3) {
|
|
if (target_to_host_itimerspec(&its_new, arg3)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
p_new = &its_new;
|
|
} else {
|
|
p_new = NULL;
|
|
}
|
|
|
|
ret = get_errno(timerfd_settime(arg1, arg2, p_new, &its_old));
|
|
|
|
if (arg4 && host_to_target_itimerspec(arg4, &its_old)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
return ret;
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_timerfd_settime64) && defined(CONFIG_TIMERFD)
|
|
case TARGET_NR_timerfd_settime64:
|
|
{
|
|
struct itimerspec its_new, its_old, *p_new;
|
|
|
|
if (arg3) {
|
|
if (target_to_host_itimerspec64(&its_new, arg3)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
p_new = &its_new;
|
|
} else {
|
|
p_new = NULL;
|
|
}
|
|
|
|
ret = get_errno(timerfd_settime(arg1, arg2, p_new, &its_old));
|
|
|
|
if (arg4 && host_to_target_itimerspec64(arg4, &its_old)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
return ret;
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_ioprio_get) && defined(__NR_ioprio_get)
|
|
case TARGET_NR_ioprio_get:
|
|
return get_errno(ioprio_get(arg1, arg2));
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_ioprio_set) && defined(__NR_ioprio_set)
|
|
case TARGET_NR_ioprio_set:
|
|
return get_errno(ioprio_set(arg1, arg2, arg3));
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_setns) && defined(CONFIG_SETNS)
|
|
case TARGET_NR_setns:
|
|
return get_errno(setns(arg1, arg2));
|
|
#endif
|
|
#if defined(TARGET_NR_unshare) && defined(CONFIG_SETNS)
|
|
case TARGET_NR_unshare:
|
|
return get_errno(unshare(arg1));
|
|
#endif
|
|
#if defined(TARGET_NR_kcmp) && defined(__NR_kcmp)
|
|
case TARGET_NR_kcmp:
|
|
return get_errno(kcmp(arg1, arg2, arg3, arg4, arg5));
|
|
#endif
|
|
#ifdef TARGET_NR_swapcontext
|
|
case TARGET_NR_swapcontext:
|
|
/* PowerPC specific. */
|
|
return do_swapcontext(cpu_env, arg1, arg2, arg3);
|
|
#endif
|
|
#ifdef TARGET_NR_memfd_create
|
|
case TARGET_NR_memfd_create:
|
|
p = lock_user_string(arg1);
|
|
if (!p) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = get_errno(memfd_create(p, arg2));
|
|
fd_trans_unregister(ret);
|
|
unlock_user(p, arg1, 0);
|
|
return ret;
|
|
#endif
|
|
#if defined TARGET_NR_membarrier && defined __NR_membarrier
|
|
case TARGET_NR_membarrier:
|
|
return get_errno(membarrier(arg1, arg2));
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_copy_file_range) && defined(__NR_copy_file_range)
|
|
case TARGET_NR_copy_file_range:
|
|
{
|
|
loff_t inoff, outoff;
|
|
loff_t *pinoff = NULL, *poutoff = NULL;
|
|
|
|
if (arg2) {
|
|
if (get_user_u64(inoff, arg2)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
pinoff = &inoff;
|
|
}
|
|
if (arg4) {
|
|
if (get_user_u64(outoff, arg4)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
poutoff = &outoff;
|
|
}
|
|
/* Do not sign-extend the count parameter. */
|
|
ret = get_errno(safe_copy_file_range(arg1, pinoff, arg3, poutoff,
|
|
(abi_ulong)arg5, arg6));
|
|
if (!is_error(ret) && ret > 0) {
|
|
if (arg2) {
|
|
if (put_user_u64(inoff, arg2)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
if (arg4) {
|
|
if (put_user_u64(outoff, arg4)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return ret;
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_pivot_root)
|
|
case TARGET_NR_pivot_root:
|
|
{
|
|
void *p2;
|
|
p = lock_user_string(arg1); /* new_root */
|
|
p2 = lock_user_string(arg2); /* put_old */
|
|
if (!p || !p2) {
|
|
ret = -TARGET_EFAULT;
|
|
} else {
|
|
ret = get_errno(pivot_root(p, p2));
|
|
}
|
|
unlock_user(p2, arg2, 0);
|
|
unlock_user(p, arg1, 0);
|
|
}
|
|
return ret;
|
|
#endif
|
|
|
|
default:
|
|
qemu_log_mask(LOG_UNIMP, "Unsupported syscall: %d\n", num);
|
|
return -TARGET_ENOSYS;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
abi_long do_syscall(CPUArchState *cpu_env, int num, abi_long arg1,
|
|
abi_long arg2, abi_long arg3, abi_long arg4,
|
|
abi_long arg5, abi_long arg6, abi_long arg7,
|
|
abi_long arg8)
|
|
{
|
|
CPUState *cpu = env_cpu(cpu_env);
|
|
abi_long ret;
|
|
|
|
#ifdef DEBUG_ERESTARTSYS
|
|
/* Debug-only code for exercising the syscall-restart code paths
|
|
* in the per-architecture cpu main loops: restart every syscall
|
|
* the guest makes once before letting it through.
|
|
*/
|
|
{
|
|
static bool flag;
|
|
flag = !flag;
|
|
if (flag) {
|
|
return -QEMU_ERESTARTSYS;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
record_syscall_start(cpu, num, arg1,
|
|
arg2, arg3, arg4, arg5, arg6, arg7, arg8);
|
|
|
|
if (unlikely(qemu_loglevel_mask(LOG_STRACE))) {
|
|
print_syscall(cpu_env, num, arg1, arg2, arg3, arg4, arg5, arg6);
|
|
}
|
|
|
|
ret = do_syscall1(cpu_env, num, arg1, arg2, arg3, arg4,
|
|
arg5, arg6, arg7, arg8);
|
|
|
|
if (unlikely(qemu_loglevel_mask(LOG_STRACE))) {
|
|
print_syscall_ret(cpu_env, num, ret, arg1, arg2,
|
|
arg3, arg4, arg5, arg6);
|
|
}
|
|
|
|
record_syscall_return(cpu, num, ret);
|
|
return ret;
|
|
}
|