vcs.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         if (desc->init() < 0)
  51                 return FALSE;
  52
  53         plugins = g_slist_append(plugins, plugin);
  54
  55         return TRUE;
  56 }
  57
  58 int __connman_plugin_init(void)
  59 {
  60         GDir *dir;
  61         const gchar *file;
  62         gchar *filename;
  63
  64         DBG("");
  65
  66         dir = g_dir_open(PLUGINDIR, 0, NULL);
  67         if (dir != NULL) {
  68                 while ((file = g_dir_read_name(dir)) != NULL) {
  69                         void *handle;
  70                         struct connman_plugin_desc *desc;
  71
  72                         if (g_str_has_prefix(file, "lib") == TRUE ||
  73                                         g_str_has_suffix(file, ".so") == FALSE)
  74                                 continue;
  75
  76                         filename = g_build_filename(PLUGINDIR, file, NULL);
  77
  78                         handle = dlopen(filename, RTLD_NOW);
  79                         if (handle == NULL) {
  80                                 g_warning("Can't load %s: %s", filename,
  81                                                                 dlerror());
  82                                 g_free(filename);
  83                                 continue;
  84                         }
  85
  86                         g_free(filename);
  87
  88                         desc = dlsym(handle, "connman_plugin_desc");
  89                         if (desc == NULL) {
  90                                 g_warning("Can't load symbol: %s", dlerror());
  91                                 dlclose(handle);
  92                                 continue;
  93                         }
  94
  95                         if (desc->init == NULL) {
  96                                 dlclose(handle);
  97                                 continue;
  98                         }
  99
 100                         if (add_plugin(handle, desc) == FALSE)
 101                                 dlclose(handle);
 102                 }
 103
 104                 g_dir_close(dir);
 105         }
 106
 107         return 0;
 108 }
 109
 110 void __connman_plugin_cleanup(void)
 111 {
 112         GSList *list;
 113
 114         DBG("");
 115
 116         for (list = plugins; list; list = list->next) {
 117                 struct connman_plugin *plugin = list->data;
 118
 119                 if (plugin->desc->exit)
 120                         plugin->desc->exit();
 121
 122                 dlclose(plugin->handle);
 123
 124                 g_free(plugin);
 125         }
 126
 127         g_slist_free(plugins);
 128 }