plugins/session_policy.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2012  BMW Car IT GbmH. 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 <errno.h>
  27 #include <string.h>
  28
  29 #include <glib.h>
  30
  31 #define CONNMAN_API_SUBJECT_TO_CHANGE
  32 #include <connman/plugin.h>
  33 #include <connman/log.h>
  34 #include <connman/session.h>
  35
  36 static GHashTable *config_hash;
  37
  38 static int policy_create(struct connman_session *session,
  39                                 connman_session_config_cb callback,
  40                                 void *user_data)
  41 {
  42         struct connman_session_config *config;
  43
  44         DBG("session %p", session);
  45
  46         if (callback == NULL)
  47                 return -EINVAL;
  48
  49         config = connman_session_create_default_config();
  50         if (config == NULL)
  51                 return -ENOMEM;
  52
  53         g_hash_table_replace(config_hash, session, config);
  54
  55         (*callback)(session, config, user_data, 0);
  56
  57         return 0;
  58 }
  59
  60 static void policy_destroy(struct connman_session *session)
  61 {
  62         DBG("session %p", session);
  63
  64         g_hash_table_remove(config_hash, session);
  65 }
  66
  67 static struct connman_session_policy session_policy = {
  68         .name = "session policy configuration",
  69         .priority = CONNMAN_SESSION_POLICY_PRIORITY_LOW,
  70         .create = policy_create,
  71         .destroy = policy_destroy,
  72 };
  73
  74 static void cleanup_config(gpointer user_data)
  75 {
  76         struct connman_session_config *config = user_data;
  77
  78         connman_session_free_bearers(config->allowed_bearers);
  79         g_free(config);
  80 }
  81
  82 static int session_policy_init(void)
  83 {
  84         int err;
  85
  86         err = connman_session_policy_register(&session_policy);
  87         if (err < 0)
  88                 return err;
  89
  90         config_hash = g_hash_table_new_full(g_direct_hash, g_direct_equal, NULL,
  91                                                 cleanup_config);
  92         if (config_hash == NULL) {
  93                 connman_session_policy_unregister(&session_policy);
  94                 return -ENOMEM;
  95         }
  96
  97         return 0;
  98 }
  99
 100 static void session_policy_exit(void)
 101 {
 102         g_hash_table_destroy(config_hash);
 103
 104         connman_session_policy_unregister(&session_policy);
 105 }
 106
 107 CONNMAN_PLUGIN_DEFINE(session_policy, "Session policy configuration plugin",
 108                 VERSION, CONNMAN_PLUGIN_PRIORITY_DEFAULT,
 109                 session_policy_init, session_policy_exit)