LXR qemu/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 2.1 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/simple.h"
  23#include "trace.h"
  24#include "qemu/module.h"
  25#include "qom/object_interfaces.h"
  26
  27static 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
  37static void
  38qauthz_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
  49static char *
  50qauthz_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
  59static void
  60qauthz_simple_finalize(Object *obj)
  61{
  62    QAuthZSimple *sauthz = QAUTHZ_SIMPLE(obj);
  63
  64    g_free(sauthz->identity);
  65}
  66
  67
  68static void
  69qauthz_simple_complete(UserCreatable *uc, Error **errp)
  70{
  71    QAuthZSimple *sauthz = QAUTHZ_SIMPLE(uc);
  72
  73    if (!sauthz->identity) {
  74        error_setg(errp, "The 'identity' property must be set");
  75        return;
  76    }
  77}
  78
  79
  80static void
  81qauthz_simple_class_init(ObjectClass *oc, void *data)
  82{
  83    QAuthZClass *authz = QAUTHZ_CLASS(oc);
  84    UserCreatableClass *ucc = USER_CREATABLE_CLASS(oc);
  85
  86    ucc->complete = qauthz_simple_complete;
  87    authz->is_allowed = qauthz_simple_is_allowed;
  88
  89    object_class_property_add_str(oc, "identity",
  90                                  qauthz_simple_prop_get_identity,
  91                                  qauthz_simple_prop_set_identity);
  92}
  93
  94
  95QAuthZSimple *qauthz_simple_new(const char *id,
  96                                const char *identity,
  97                                Error **errp)
  98{
  99    return QAUTHZ_SIMPLE(
 100        object_new_with_props(TYPE_QAUTHZ_SIMPLE,
 101                              object_get_objects_root(),
 102                              id, errp,
 103                              "identity", identity,
 104                              NULL));
 105}
 106
 107
 108static const TypeInfo qauthz_simple_info = {
 109    .parent = TYPE_QAUTHZ,
 110    .name = TYPE_QAUTHZ_SIMPLE,
 111    .instance_size = sizeof(QAuthZSimple),
 112    .instance_finalize = qauthz_simple_finalize,
 113    .class_init = qauthz_simple_class_init,
 114    .interfaces = (InterfaceInfo[]) {
 115        { TYPE_USER_CREATABLE },
 116        { }
 117    }
 118};
 119
 120
 121static void
 122qauthz_simple_register_types(void)
 123{
 124    type_register_static(&qauthz_simple_info);
 125}
 126
 127
 128type_init(qauthz_simple_register_types);
 129