forked from mirror/qemu
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
102 lines
2.4 KiB
C
102 lines
2.4 KiB
C
/*
|
|
* replay-net.c
|
|
*
|
|
* Copyright (c) 2010-2016 Institute for System Programming
|
|
* of the Russian Academy of Sciences.
|
|
*
|
|
* This work is licensed under the terms of the GNU GPL, version 2 or later.
|
|
* See the COPYING file in the top-level directory.
|
|
*
|
|
*/
|
|
|
|
#include "qemu/osdep.h"
|
|
#include "qemu/error-report.h"
|
|
#include "sysemu/replay.h"
|
|
#include "replay-internal.h"
|
|
#include "net/net.h"
|
|
#include "net/filter.h"
|
|
#include "qemu/iov.h"
|
|
|
|
struct ReplayNetState {
|
|
NetFilterState *nfs;
|
|
int id;
|
|
};
|
|
|
|
typedef struct NetEvent {
|
|
uint8_t id;
|
|
uint32_t flags;
|
|
uint8_t *data;
|
|
size_t size;
|
|
} NetEvent;
|
|
|
|
static NetFilterState **network_filters;
|
|
static int network_filters_count;
|
|
|
|
ReplayNetState *replay_register_net(NetFilterState *nfs)
|
|
{
|
|
ReplayNetState *rns = g_new0(ReplayNetState, 1);
|
|
rns->nfs = nfs;
|
|
rns->id = network_filters_count++;
|
|
network_filters = g_realloc(network_filters,
|
|
network_filters_count
|
|
* sizeof(*network_filters));
|
|
network_filters[network_filters_count - 1] = nfs;
|
|
return rns;
|
|
}
|
|
|
|
void replay_unregister_net(ReplayNetState *rns)
|
|
{
|
|
network_filters[rns->id] = NULL;
|
|
g_free(rns);
|
|
}
|
|
|
|
void replay_net_packet_event(ReplayNetState *rns, unsigned flags,
|
|
const struct iovec *iov, int iovcnt)
|
|
{
|
|
NetEvent *event = g_new(NetEvent, 1);
|
|
event->flags = flags;
|
|
event->data = g_malloc(iov_size(iov, iovcnt));
|
|
event->size = iov_size(iov, iovcnt);
|
|
event->id = rns->id;
|
|
iov_to_buf(iov, iovcnt, 0, event->data, event->size);
|
|
|
|
replay_add_event(REPLAY_ASYNC_EVENT_NET, event, NULL, 0);
|
|
}
|
|
|
|
void replay_event_net_run(void *opaque)
|
|
{
|
|
NetEvent *event = opaque;
|
|
struct iovec iov = {
|
|
.iov_base = (void *)event->data,
|
|
.iov_len = event->size
|
|
};
|
|
|
|
assert(event->id < network_filters_count);
|
|
|
|
qemu_netfilter_pass_to_next(network_filters[event->id]->netdev,
|
|
event->flags, &iov, 1, network_filters[event->id]);
|
|
|
|
g_free(event->data);
|
|
g_free(event);
|
|
}
|
|
|
|
void replay_event_net_save(void *opaque)
|
|
{
|
|
NetEvent *event = opaque;
|
|
|
|
replay_put_byte(event->id);
|
|
replay_put_dword(event->flags);
|
|
replay_put_array(event->data, event->size);
|
|
}
|
|
|
|
void *replay_event_net_load(void)
|
|
{
|
|
NetEvent *event = g_new(NetEvent, 1);
|
|
|
|
event->id = replay_get_byte();
|
|
event->flags = replay_get_dword();
|
|
replay_get_array_alloc(&event->data, &event->size);
|
|
|
|
return event;
|
|
}
|