Imported Upstream version 1.24

[platform/upstream/connman.git] / src / plugin.c

diff --git a/src/plugin.c b/src/plugin.c
index 716eb7c..7d73058 100644 (file)
--- a/src/plugin.c
+++ b/src/plugin.c
@@ -2,7 +2,7 @@
  *
  *  Connection Manager
  *
- *  Copyright (C) 2007-2009  Intel Corporation. All rights reserved.
+ *  Copyright (C) 2007-2012  Intel Corporation. All rights reserved.
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License version 2 as
@@ -27,63 +27,125 @@
 
 #include <glib.h>
 
+#ifdef CONNMAN_PLUGIN_BUILTIN
+#undef CONNMAN_PLUGIN_BUILTIN
+#endif
+
 #include "connman.h"
 
 static GSList *plugins = NULL;
 
 struct connman_plugin {
        void *handle;
+       bool active;
        struct connman_plugin_desc *desc;
 };
 
-static gboolean add_plugin(void *handle, struct connman_plugin_desc *desc)
+static gint compare_priority(gconstpointer a, gconstpointer b)
+{
+       const struct connman_plugin *plugin1 = a;
+       const struct connman_plugin *plugin2 = b;
+
+       return plugin2->desc->priority - plugin1->desc->priority;
+}
+
+static bool add_plugin(void *handle, struct connman_plugin_desc *desc)
 {
        struct connman_plugin *plugin;
 
-       if (desc->init == NULL)
-               return FALSE;
+       if (!desc->init)
+               return false;
+
+       if (!g_str_equal(desc->version, CONNMAN_VERSION)) {
+               connman_error("Invalid version %s for %s", desc->version,
+                                                       desc->description);
+               return false;
+       }
 
        plugin = g_try_new0(struct connman_plugin, 1);
-       if (plugin == NULL)
-               return FALSE;
+       if (!plugin)
+               return false;
 
        plugin->handle = handle;
+       plugin->active = false;
        plugin->desc = desc;
 
-       if (desc->init() < 0) {
-               g_free(plugin);
-               return FALSE;
+       __connman_log_enable(desc->debug_start, desc->debug_stop);
+
+       plugins = g_slist_insert_sorted(plugins, plugin, compare_priority);
+
+       return true;
+}
+
+static bool check_plugin(struct connman_plugin_desc *desc,
+                               char **patterns, char **excludes)
+{
+       if (excludes) {
+               for (; *excludes; excludes++)
+                       if (g_pattern_match_simple(*excludes, desc->name))
+                               break;
+               if (*excludes) {
+                       connman_info("Excluding %s", desc->description);
+                       return false;
+               }
        }
 
-       plugins = g_slist_append(plugins, plugin);
+       if (patterns) {
+               for (; *patterns; patterns++)
+                       if (g_pattern_match_simple(*patterns, desc->name))
+                               break;
+               if (!*patterns) {
+                       connman_info("Ignoring %s", desc->description);
+                       return false;
+               }
+       }
 
-       return TRUE;
+       return true;
 }
 
-int __connman_plugin_init(const char *pattern)
+#include <builtin.h>
+
+int __connman_plugin_init(const char *pattern, const char *exclude)
 {
+       gchar **patterns = NULL;
+       gchar **excludes = NULL;
+       GSList *list;
        GDir *dir;
        const gchar *file;
        gchar *filename;
+       unsigned int i;
 
        DBG("");
 
+       if (pattern)
+               patterns = g_strsplit_set(pattern, ":, ", -1);
+
+       if (exclude)
+               excludes = g_strsplit_set(exclude, ":, ", -1);
+
+       for (i = 0; __connman_builtin[i]; i++) {
+               if (!check_plugin(__connman_builtin[i], patterns, excludes))
+                       continue;
+
+               add_plugin(NULL, __connman_builtin[i]);
+       }
+
        dir = g_dir_open(PLUGINDIR, 0, NULL);
-       if (dir != NULL) {
-               while ((file = g_dir_read_name(dir)) != NULL) {
+       if (dir) {
+               while ((file = g_dir_read_name(dir))) {
                        void *handle;
                        struct connman_plugin_desc *desc;
 
-                       if (g_str_has_prefix(file, "lib") == TRUE ||
-                                       g_str_has_suffix(file, ".so") == FALSE)
+                       if (g_str_has_prefix(file, "lib") ||
+                                       !g_str_has_suffix(file, ".so"))
                                continue;
 
                        filename = g_build_filename(PLUGINDIR, file, NULL);
 
                        handle = dlopen(filename, RTLD_NOW);
-                       if (handle == NULL) {
-                               g_warning("Can't load %s: %s", filename,
-                                                               dlerror());
+                       if (!handle) {
+                               connman_error("Can't load %s: %s",
+                                                       filename, dlerror());
                                g_free(filename);
                                continue;
                        }
@@ -91,26 +153,37 @@ int __connman_plugin_init(const char *pattern)
                        g_free(filename);
 
                        desc = dlsym(handle, "connman_plugin_desc");
-                       if (desc == NULL) {
-                               g_warning("Can't load symbol: %s", dlerror());
+                       if (!desc) {
+                               connman_error("Can't load symbol: %s",
+                                                               dlerror());
                                dlclose(handle);
                                continue;
                        }
 
-                       if (g_pattern_match_simple(pattern,
-                                                       desc->name) == FALSE) {
-                               DBG("ignoring %s", desc->description);
+                       if (!check_plugin(desc, patterns, excludes)) {
                                dlclose(handle);
                                continue;
                        }
 
-                       if (add_plugin(handle, desc) == FALSE)
+                       if (!add_plugin(handle, desc))
                                dlclose(handle);
                }
 
                g_dir_close(dir);
        }
 
+       for (list = plugins; list; list = list->next) {
+               struct connman_plugin *plugin = list->data;
+
+               if (plugin->desc->init() < 0)
+                       continue;
+
+               plugin->active = true;
+       }
+
+       g_strfreev(patterns);
+       g_strfreev(excludes);
+
        return 0;
 }
 
@@ -123,10 +196,11 @@ void __connman_plugin_cleanup(void)
        for (list = plugins; list; list = list->next) {
                struct connman_plugin *plugin = list->data;
 
-               if (plugin->desc->exit)
+               if (plugin->active && plugin->desc->exit)
                        plugin->desc->exit();
 
-               dlclose(plugin->handle);
+               if (plugin->handle)
+                       dlclose(plugin->handle);
 
                g_free(plugin);
        }