qemu

FORK: QEMU emulator
git clone https://git.neptards.moe/neptards/qemu.git
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base.c (2229B)

      1 /*
      2  * QEMU authorization framework base class
      3  *
      4  * Copyright (c) 2018 Red Hat, Inc.
      5  *
      6  * This library is free software; you can redistribute it and/or
      7  * modify it under the terms of the GNU Lesser General Public
      8  * License as published by the Free Software Foundation; either
      9  * version 2.1 of the License, or (at your option) any later version.
     10  *
     11  * This library is distributed in the hope that it will be useful,
     12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     14  * Lesser General Public License for more details.
     15  *
     16  * You should have received a copy of the GNU Lesser General Public
     17  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
     18  *
     19  */
     20 
     21 #include "qemu/osdep.h"
     22 #include "authz/base.h"
     23 #include "qemu/module.h"
     24 #include "trace.h"
     25 
     26 bool qauthz_is_allowed(QAuthZ *authz,
     27                        const char *identity,
     28                        Error **errp)
     29 {
     30     QAuthZClass *cls = QAUTHZ_GET_CLASS(authz);
     31     bool allowed;
     32 
     33     allowed = cls->is_allowed(authz, identity, errp);
     34     trace_qauthz_is_allowed(authz, identity, allowed);
     35 
     36     return allowed;
     37 }
     38 
     39 
     40 bool qauthz_is_allowed_by_id(const char *authzid,
     41                              const char *identity,
     42                              Error **errp)
     43 {
     44     QAuthZ *authz;
     45     Object *obj;
     46     Object *container;
     47 
     48     container = object_get_objects_root();
     49     obj = object_resolve_path_component(container,
     50                                         authzid);
     51     if (!obj) {
     52         error_setg(errp, "Cannot find QAuthZ object ID %s",
     53                    authzid);
     54         return false;
     55     }
     56 
     57     if (!object_dynamic_cast(obj, TYPE_QAUTHZ)) {
     58         error_setg(errp, "Object '%s' is not a QAuthZ subclass",
     59                    authzid);
     60         return false;
     61     }
     62 
     63     authz = QAUTHZ(obj);
     64 
     65     return qauthz_is_allowed(authz, identity, errp);
     66 }
     67 
     68 
     69 static const TypeInfo authz_info = {
     70     .parent = TYPE_OBJECT,
     71     .name = TYPE_QAUTHZ,
     72     .instance_size = sizeof(QAuthZ),
     73     .class_size = sizeof(QAuthZClass),
     74     .abstract = true,
     75 };
     76 
     77 static void qauthz_register_types(void)
     78 {
     79     type_register_static(&authz_info);
     80 }
     81 
     82 type_init(qauthz_register_types)
     83