2 Bacula® - The Network Backup Solution
4 Copyright (C) 2007-2008 Free Software Foundation Europe e.V.
6 The main author of Bacula is Kern Sibbald, with contributions from
7 many others, a complete list can be found in the file AUTHORS.
8 This program is Free Software; you can redistribute it and/or
9 modify it under the terms of version two of the GNU General Public
10 License as published by the Free Software Foundation, which is
11 listed in the file LICENSE.
13 This program is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
23 Bacula® is a registered trademark of John Walker.
24 The licensor of Bacula is the Free Software Foundation Europe
25 (FSFE), Fiduciary Program, Sumatrastrasse 25, 8006 Zürich,
26 Switzerland, email:ftf@fsfeurope.org.
29 * Plugin load/unloader for all Bacula daemons
31 * Kern Sibbald, October 2007
36 /* All loaded plugins */
37 alist *plugin_list = NULL;
40 * Create a new plugin "class" entry and enter it in the
41 * list of plugins. Note, this is not the same as
42 * an instance of the plugin.
48 plugin = (Plugin *)malloc(sizeof(Plugin));
49 memset(plugin, 0, sizeof(Plugin));
50 plugin_list->append(plugin);
56 * Load all the plugins in the specified directory.
58 bool load_plugins(void *binfo, void *bfuncs, const char *plugin_dir, const char *type)
62 t_loadPlugin loadPlugin;
65 struct dirent *entry = NULL, *result;
68 POOL_MEM fname(PM_FNAME);
69 bool need_slash = false;
73 name_max = pathconf(".", _PC_NAME_MAX);
74 if (name_max < 1024) {
78 if (!(dp = opendir(plugin_dir))) {
80 Jmsg(NULL, M_ERROR, 0, _("Failed to open Plugin directory %s: ERR=%s\n"),
81 plugin_dir, be.bstrerror());
85 len = strlen(plugin_dir);
87 need_slash = !IsPathSeparator(plugin_dir[len - 1]);
89 entry = (struct dirent *)malloc(sizeof(struct dirent) + name_max + 1000);
91 if ((readdir_r(dp, entry, &result) != 0) || (result == NULL)) {
93 Jmsg(NULL, M_INFO, 0, _("Failed to find any plugins in %s\n"),
98 if (strcmp(result->d_name, ".") == 0 ||
99 strcmp(result->d_name, "..") == 0) {
103 len = strlen(result->d_name);
104 type_len = strlen(type);
105 if (len < type_len+1 || strcmp(&result->d_name[len-type_len], type) != 0) {
106 Dmsg3(100, "Rejected plugin: want=%s name=%s len=%d\n", type, result->d_name, len);
109 Dmsg2(100, "Loaded plugin: name=%s len=%d\n", result->d_name, len);
111 pm_strcpy(fname, plugin_dir);
113 pm_strcat(fname, "/");
115 pm_strcat(fname, result->d_name);
116 if (lstat(fname.c_str(), &statp) != 0 || !S_ISREG(statp.st_mode)) {
117 continue; /* ignore directories & special files */
120 plugin = new_plugin();
121 plugin->file = bstrdup(result->d_name);
122 plugin->pHandle = dlopen(fname.c_str(), RTLD_NOW);
123 if (!plugin->pHandle) {
124 Jmsg(NULL, M_ERROR, 0, _("Plugin load %s failed: ERR=%s\n"),
125 fname.c_str(), NPRT(dlerror()));
129 /* Get two global entry points */
130 loadPlugin = (t_loadPlugin)dlsym(plugin->pHandle, "loadPlugin");
132 Jmsg(NULL, M_ERROR, 0, _("Lookup of loadPlugin in plugin %s failed: ERR=%s\n"),
133 fname.c_str(), NPRT(dlerror()));
136 plugin->unloadPlugin = (t_unloadPlugin)dlsym(plugin->pHandle, "unloadPlugin");
137 if (!plugin->unloadPlugin) {
138 Jmsg(NULL, M_ERROR, 0, _("Lookup of unloadPlugin in plugin %s failed: ERR=%s\n"),
139 fname.c_str(), NPRT(dlerror()));
143 /* Initialize the plugin */
144 loadPlugin(binfo, bfuncs, &plugin->pinfo, &plugin->pfuncs);
146 found = true; /* found a plugin */
161 * Unload all the loaded plugins
163 void unload_plugins()
171 foreach_alist(plugin, plugin_list) {
172 /* Shut it down and unload it */
173 plugin->unloadPlugin();
174 dlclose(plugin->pHandle);