authz/simple.c

   1 /*
   2  * QEMU simple authorization driver
   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 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/simple.h"
  23 #include "trace.h"
  24 #include "qemu/module.h"
  25 #include "qom/object_interfaces.h"
  26
  27 static bool qauthz_simple_is_allowed(QAuthZ *authz,
  28                                      const char *identity,
  29                                      Error **errp)
  30 {
  31     QAuthZSimple *sauthz = QAUTHZ_SIMPLE(authz);
  32
  33     trace_qauthz_simple_is_allowed(authz, sauthz->identity, identity);
  34     return g_str_equal(identity, sauthz->identity);
  35 }
  36
  37 static void
  38 qauthz_simple_prop_set_identity(Object *obj,
  39                                 const char *value,
  40                                 Error **errp G_GNUC_UNUSED)
  41 {
  42     QAuthZSimple *sauthz = QAUTHZ_SIMPLE(obj);
  43
  44     g_free(sauthz->identity);
  45     sauthz->identity = g_strdup(value);
  46 }
  47
  48
  49 static char *
  50 qauthz_simple_prop_get_identity(Object *obj,
  51                                 Error **errp G_GNUC_UNUSED)
  52 {
  53     QAuthZSimple *sauthz = QAUTHZ_SIMPLE(obj);
  54
  55     return g_strdup(sauthz->identity);
  56 }
  57
  58
  59 static void
  60 qauthz_simple_finalize(Object *obj)
  61 {
  62     QAuthZSimple *sauthz = QAUTHZ_SIMPLE(obj);
  63
  64     g_free(sauthz->identity);
  65 }
  66
  67
  68 static void
  69 qauthz_simple_class_init(ObjectClass *oc, void *data)
  70 {
  71     QAuthZClass *authz = QAUTHZ_CLASS(oc);
  72
  73     authz->is_allowed = qauthz_simple_is_allowed;
  74
  75     object_class_property_add_str(oc, "identity",
  76                                   qauthz_simple_prop_get_identity,
  77                                   qauthz_simple_prop_set_identity,
  78                                   NULL);
  79 }
  80
  81
  82 QAuthZSimple *qauthz_simple_new(const char *id,
  83                                 const char *identity,
  84                                 Error **errp)
  85 {
  86     return QAUTHZ_SIMPLE(
  87         object_new_with_props(TYPE_QAUTHZ_SIMPLE,
  88                               object_get_objects_root(),
  89                               id, errp,
  90                               "identity", identity,
  91                               NULL));
  92 }
  93
  94
  95 static const TypeInfo qauthz_simple_info = {
  96     .parent = TYPE_QAUTHZ,
  97     .name = TYPE_QAUTHZ_SIMPLE,
  98     .instance_size = sizeof(QAuthZSimple),
  99     .instance_finalize = qauthz_simple_finalize,
 100     .class_size = sizeof(QAuthZSimpleClass),
 101     .class_init = qauthz_simple_class_init,
 102     .interfaces = (InterfaceInfo[]) {
 103         { TYPE_USER_CREATABLE },
 104         { }
 105     }
 106 };
 107
 108
 109 static void
 110 qauthz_simple_register_types(void)
 111 {
 112     type_register_static(&qauthz_simple_info);
 113 }
 114
 115
 116 type_init(qauthz_simple_register_types);