git.maemo.org Git - connman/blob - src/security.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2008  Intel Corporation. All rights reserved.
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License version 2 as
   9  *  published by the Free Software Foundation.
  10  *
  11  *  This program 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
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  *
  20  */
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include "connman.h"
  27
  28 static GStaticRWLock security_lock = G_STATIC_RW_LOCK_INIT;
  29 static GSList *security_list = NULL;
  30
  31 static gint compare_priority(gconstpointer a, gconstpointer b)
  32 {
  33         const struct connman_security *security1 = a;
  34         const struct connman_security *security2 = b;
  35
  36         return security2->priority - security1->priority;
  37 }
  38
  39 int connman_security_register(struct connman_security *security)
  40 {
  41         DBG("security %p name %s", security, security->name);
  42
  43         g_static_rw_lock_writer_lock(&security_lock);
  44
  45         security_list = g_slist_insert_sorted(security_list, security,
  46                                                         compare_priority);
  47
  48         g_static_rw_lock_writer_unlock(&security_lock);
  49
  50         return 0;
  51 }
  52
  53 void connman_security_unregister(struct connman_security *security)
  54 {
  55         DBG("security %p name %s", security, security->name);
  56
  57         g_static_rw_lock_writer_lock(&security_lock);
  58
  59         security_list = g_slist_remove(security_list, security);
  60
  61         g_static_rw_lock_writer_unlock(&security_lock);
  62 }
  63
  64 int __connman_security_check_privileges(DBusMessage *message)
  65 {
  66         GSList *list;
  67         const char *sender;
  68         int err = -EPERM;
  69
  70         DBG("message %p", message);
  71
  72         sender = dbus_message_get_sender(message);
  73
  74         g_static_rw_lock_reader_lock(&security_lock);
  75
  76         for (list = security_list; list; list = list->next) {
  77                 struct connman_security *security = list->data;
  78
  79                 DBG("%s", security->name);
  80
  81                 if (security->authorize_sender) {
  82                         err = security->authorize_sender(sender);
  83                         break;
  84                 }
  85         }
  86
  87         g_static_rw_lock_reader_unlock(&security_lock);
  88
  89         return err;
  90 }