git.maemo.org Git - connman/blob - src/plugin.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 <dlfcn.h>
  27
  28 #include <glib.h>
  29
  30 #include "connman.h"
  31
  32 static GSList *plugins = NULL;
  33
  34 struct connman_plugin {
  35         void *handle;
  36         struct connman_plugin_desc *desc;
  37 };
  38
  39 static gboolean add_plugin(void *handle, struct connman_plugin_desc *desc)
  40 {
  41         struct connman_plugin *plugin;
  42
  43         plugin = g_try_new0(struct connman_plugin, 1);
  44         if (plugin == NULL)
  45                 return FALSE;
  46
  47         plugin->handle = handle;
  48         plugin->desc = desc;
  49
  50         plugins = g_slist_append(plugins, plugin);
  51
  52         desc->init();
  53
  54         return TRUE;
  55 }
  56
  57 int __connman_plugin_init(void)
  58 {
  59         GDir *dir;
  60         const gchar *file;
  61         gchar *filename;
  62
  63         DBG("");
  64
  65         dir = g_dir_open(PLUGINDIR, 0, NULL);
  66         if (dir != NULL) {
  67                 while ((file = g_dir_read_name(dir)) != NULL) {
  68                         void *handle;
  69                         struct connman_plugin_desc *desc;
  70
  71                         if (g_str_has_prefix(file, "lib") == TRUE ||
  72                                         g_str_has_suffix(file, ".so") == FALSE)
  73                                 continue;
  74
  75                         filename = g_build_filename(PLUGINDIR, file, NULL);
  76
  77                         handle = dlopen(filename, RTLD_NOW);
  78                         if (handle == NULL) {
  79                                 g_warning("Can't load %s: %s", filename,
  80                                                                 dlerror());
  81                                 g_free(filename);
  82                                 continue;
  83                         }
  84
  85                         g_free(filename);
  86
  87                         desc = dlsym(handle, "connman_plugin_desc");
  88                         if (desc == NULL) {
  89                                 g_warning("Can't load symbol: %s", dlerror());
  90                                 dlclose(handle);
  91                                 continue;
  92                         }
  93
  94                         if (desc->init == NULL) {
  95                                 dlclose(handle);
  96                                 continue;
  97                         }
  98
  99                         if (add_plugin(handle, desc) == FALSE)
 100                                 dlclose(handle);
 101                 }
 102
 103                 g_dir_close(dir);
 104         }
 105
 106         return 0;
 107 }
 108
 109 void __connman_plugin_cleanup(void)
 110 {
 111         GSList *list;
 112
 113         DBG("");
 114
 115         for (list = plugins; list; list = list->next) {
 116                 struct connman_plugin *plugin = list->data;
 117
 118                 if (plugin->desc->exit)
 119                         plugin->desc->exit();
 120
 121                 dlclose(plugin->handle);
 122
 123                 g_free(plugin);
 124         }
 125
 126         g_slist_free(plugins);
 127 }