| /* |
| * |
| * PACrunner - Proxy configuration daemon |
| * |
| * Copyright (C) 2010-2011 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 |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| * |
| */ |
| |
| #ifdef HAVE_CONFIG_H |
| #include <config.h> |
| #endif |
| |
| #include <errno.h> |
| #include <dlfcn.h> |
| #include <string.h> |
| #include <sys/stat.h> |
| |
| #include <glib.h> |
| |
| #include "pacrunner.h" |
| |
| static GSList *plugins = NULL; |
| |
| struct pacrunner_plugin { |
| void *handle; |
| struct pacrunner_plugin_desc *desc; |
| }; |
| |
| static bool add_plugin(void *handle, struct pacrunner_plugin_desc *desc) |
| { |
| struct pacrunner_plugin *plugin; |
| |
| if (!desc->init) |
| return false; |
| |
| plugin = g_try_new0(struct pacrunner_plugin, 1); |
| if (!plugin) |
| return false; |
| |
| plugin->handle = handle; |
| plugin->desc = desc; |
| |
| if (desc->init() < 0) { |
| g_free(plugin); |
| return false; |
| } |
| |
| plugins = g_slist_append(plugins, plugin); |
| DBG("Plugin %s loaded", desc->name); |
| |
| return true; |
| } |
| |
| static bool check_plugin(struct pacrunner_plugin_desc *desc, |
| char **patterns, char **excludes) |
| { |
| if (excludes) { |
| for (; *excludes; excludes++) |
| if (g_pattern_match_simple(*excludes, desc->name)) |
| break; |
| if (*excludes) { |
| pacrunner_info("Excluding %s", desc->name); |
| return false; |
| } |
| } |
| |
| if (patterns) { |
| for (; *patterns; patterns++) |
| if (g_pattern_match_simple(*patterns, desc->name)) |
| break; |
| if (!*patterns) { |
| pacrunner_info("Ignoring %s", desc->name); |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| |
| #include "builtin.h" |
| |
| int __pacrunner_plugin_init(const char *pattern, const char *exclude) |
| { |
| gchar **patterns = NULL; |
| gchar **excludes = NULL; |
| GDir *dir; |
| const char *file; |
| unsigned int i; |
| |
| if (strlen(PLUGINDIR) == 0) |
| return -EINVAL; |
| |
| DBG(""); |
| |
| if (pattern) |
| patterns = g_strsplit_set(pattern, ", ", -1); |
| |
| if (exclude) |
| excludes = g_strsplit_set(exclude, ", ", -1); |
| |
| for (i = 0; __pacrunner_builtin[i]; i++) { |
| if (!check_plugin(__pacrunner_builtin[i], patterns, excludes)) |
| continue; |
| |
| add_plugin(NULL, __pacrunner_builtin[i]); |
| } |
| |
| dir = g_dir_open(PLUGINDIR, 0, NULL); |
| if (!dir) |
| return -EIO; |
| |
| while ((file = g_dir_read_name(dir))) { |
| struct pacrunner_plugin_desc *desc; |
| void *handle; |
| char *filename; |
| |
| 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) { |
| pacrunner_error("Can't load plugin %s: %s", |
| filename, dlerror()); |
| g_free(filename); |
| continue; |
| } |
| |
| g_free(filename); |
| |
| desc = dlsym(handle, "pacrunner_plugin_desc"); |
| if (!desc) { |
| pacrunner_error("Can't load plugin description: %s", |
| dlerror()); |
| dlclose(handle); |
| continue; |
| } |
| |
| if (!check_plugin(desc, patterns, excludes)) { |
| dlclose(handle); |
| continue; |
| } |
| |
| if (!add_plugin(handle, desc)) |
| dlclose(handle); |
| } |
| |
| g_dir_close(dir); |
| |
| g_strfreev(patterns); |
| g_strfreev(excludes); |
| |
| return 0; |
| } |
| |
| void __pacrunner_plugin_cleanup(void) |
| { |
| GSList *list; |
| |
| DBG(""); |
| |
| for (list = plugins; list; list = list->next) { |
| struct pacrunner_plugin *plugin = list->data; |
| |
| if (plugin->desc->exit) |
| plugin->desc->exit(); |
| |
| if (plugin->handle) |
| dlclose(plugin->handle); |
| |
| g_free(plugin); |
| } |
| |
| g_slist_free(plugins); |
| } |