2 Bacula® - The Network Backup Solution
4 Copyright (C) 2007-2010 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 three of the GNU Affero 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 Affero 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 Kern Sibbald.
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 * A simple test plugin for the Bacula File Daemon derived from
30 * the bpipe plugin, but used for testing new features.
32 * Kern Sibbald, October 2007
36 #include "fd_plugins.h"
50 static const int dbglvl = 000;
52 #define PLUGIN_LICENSE "Bacula AGPLv3"
53 #define PLUGIN_AUTHOR "Kern Sibbald"
54 #define PLUGIN_DATE "March 2011"
55 #define PLUGIN_VERSION "2"
56 #define PLUGIN_DESCRIPTION "Bacula Test File Daemon Plugin"
58 /* Forward referenced functions */
59 static bRC newPlugin(bpContext *ctx);
60 static bRC freePlugin(bpContext *ctx);
61 static bRC getPluginValue(bpContext *ctx, pVariable var, void *value);
62 static bRC setPluginValue(bpContext *ctx, pVariable var, void *value);
63 static bRC handlePluginEvent(bpContext *ctx, bEvent *event, void *value);
64 static bRC startBackupFile(bpContext *ctx, struct save_pkt *sp);
65 static bRC endBackupFile(bpContext *ctx);
66 static bRC pluginIO(bpContext *ctx, struct io_pkt *io);
67 static bRC startRestoreFile(bpContext *ctx, const char *cmd);
68 static bRC endRestoreFile(bpContext *ctx);
69 static bRC createFile(bpContext *ctx, struct restore_pkt *rp);
70 static bRC setFileAttributes(bpContext *ctx, struct restore_pkt *rp);
72 /* Pointers to Bacula functions */
73 static bFuncs *bfuncs = NULL;
74 static bInfo *binfo = NULL;
76 /* Plugin Information block */
77 static pInfo pluginInfo = {
79 FD_PLUGIN_INTERFACE_VERSION,
88 /* Plugin entry points for Bacula */
89 static pFuncs pluginFuncs = {
91 FD_PLUGIN_INTERFACE_VERSION,
93 /* Entry points into plugin */
94 newPlugin, /* new plugin instance */
95 freePlugin, /* free plugin instance */
109 * Plugin private context
113 FILE *fd; /* pipe file descriptor */
114 bool backup; /* set for backup (not needed) */
115 char *cmd; /* plugin command line */
116 char *fname; /* filename to "backup/restore" */
117 char *reader; /* reader program for backup */
118 char *writer; /* writer program for backup */
125 * loadPlugin() and unloadPlugin() are entry points that are
126 * exported, so Bacula can directly call these two entry points
127 * they are common to all Bacula plugins.
130 * External entry point called by Bacula to "load the plugin
132 bRC loadPlugin(bInfo *lbinfo, bFuncs *lbfuncs, pInfo **pinfo, pFuncs **pfuncs)
134 bfuncs = lbfuncs; /* set Bacula funct pointers */
136 *pinfo = &pluginInfo; /* return pointer to our info */
137 *pfuncs = &pluginFuncs; /* return pointer to our functions */
143 * External entry point to unload the plugin
147 // printf("test-plugin-fd: Unloaded\n");
152 * The following entry points are accessed through the function
153 * pointers we supplied to Bacula. Each plugin type (dir, fd, sd)
154 * has its own set of entry points that the plugin must define.
157 * Create a new instance of the plugin i.e. allocate our private storage
159 static bRC newPlugin(bpContext *ctx)
161 struct plugin_ctx *p_ctx = (struct plugin_ctx *)malloc(sizeof(struct plugin_ctx));
165 memset(p_ctx, 0, sizeof(struct plugin_ctx));
166 ctx->pContext = (void *)p_ctx; /* set our context pointer */
171 * Free a plugin instance, i.e. release our private storage
173 static bRC freePlugin(bpContext *ctx)
175 struct plugin_ctx *p_ctx = (struct plugin_ctx *)ctx->pContext;
180 free(p_ctx->cmd); /* free any allocated command string */
182 free(p_ctx); /* free our private context */
188 * Return some plugin value (none defined)
190 static bRC getPluginValue(bpContext *ctx, pVariable var, void *value)
196 * Set a plugin value (none defined)
198 static bRC setPluginValue(bpContext *ctx, pVariable var, void *value)
204 * Handle an event that was generated in Bacula
206 static bRC handlePluginEvent(bpContext *ctx, bEvent *event, void *value)
208 struct plugin_ctx *p_ctx = (struct plugin_ctx *)ctx->pContext;
209 restore_object_pkt *rop;
217 * Most events don't interest us so we ignore them.
218 * the printfs are so that plugin writers can enable them to see
219 * what is really going on.
221 switch (event->eventType) {
223 bfuncs->DebugMessage(ctx, fi, li, dbglvl, "test-plugin-fd: JobStart=%s\n", (char *)value);
226 case bEventEndBackupJob:
229 case bEventStartRestoreJob:
230 case bEventEndRestoreJob:
232 /* End of Dir FileSet commands, now we can add excludes */
233 case bEventEndFileSet:
234 bfuncs->NewOptions(ctx);
235 bfuncs->AddWild(ctx, "*.c", ' ');
236 bfuncs->AddWild(ctx, "*.cpp", ' ');
237 bfuncs->AddOptions(ctx, "ei"); /* exclude, ignore case */
238 bfuncs->AddExclude(ctx, "/home/kern/bacula/regress/README");
240 case bEventStartBackupJob:
242 case bEventRestoreObject:
243 printf("Plugin RestoreObject\n");
245 bfuncs->DebugMessage(ctx, fi, li, dbglvl, "test-plugin-fd: End restore objects\n");
248 rop = (restore_object_pkt *)value;
249 bfuncs->DebugMessage(ctx, fi, li, dbglvl,
250 "Get RestoreObject len=%d JobId=%d oname=%s data=%s\n",
251 rop->object_len, rop->JobId, rop->object_name,
254 /* Plugin command e.g. plugin = <plugin-name>:<name-space>:read command:write command */
255 case bEventRestoreCommand:
256 /* Fall-through wanted */
257 case bEventBackupCommand:
259 bfuncs->DebugMessage(ctx, fi, li, dbglvl, "test-plugin-fd: pluginEvent cmd=%s\n", (char *)value);
260 p_ctx->cmd = strdup((char *)value);
261 p = strchr(p_ctx->cmd, ':');
263 bfuncs->JobMessage(ctx, fi, li, M_FATAL, 0, "Plugin terminator not found: %s\n", (char *)value);
266 *p++ = 0; /* terminate plugin */
270 bfuncs->JobMessage(ctx, fi, li, M_FATAL, 0, "File terminator not found: %s\n", (char *)value);
273 *p++ = 0; /* terminate file */
277 bfuncs->JobMessage(ctx, fi, li, M_FATAL, 0, "Reader terminator not found: %s\n", (char *)value);
280 *p++ = 0; /* terminate reader string */
282 printf("test-plugin-fd: plugin=%s fname=%s reader=%s writer=%s\n",
283 p_ctx->cmd, p_ctx->fname, p_ctx->reader, p_ctx->writer);
287 printf("test-plugin-fd: unknown event=%d\n", event->eventType);
294 * Start the backup of a specific file
296 static bRC startBackupFile(bpContext *ctx, struct save_pkt *sp)
298 struct plugin_ctx *p_ctx = (struct plugin_ctx *)ctx->pContext;
302 time_t now = time(NULL);
303 sp->object_name = (char *)"james.xml";
304 sp->object = (char *)"This is test data for the restore object. "
305 "garbage=aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
306 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
307 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa."
309 sp->object_len = strlen(sp->object)+1+6+1; /* str + 0 + secret + 0 */
311 sp->type = FT_RESTORE_FIRST;
312 sp->statp.st_mode = 0700 | S_IFREG;
313 sp->statp.st_ctime = now;
314 sp->statp.st_mtime = now;
315 sp->statp.st_atime = now;
316 sp->statp.st_size = sp->object_len;
317 sp->statp.st_blksize = 4096;
318 sp->statp.st_blocks = 1;
319 bfuncs->DebugMessage(ctx, fi, li, dbglvl,
320 "Creating RestoreObject len=%d oname=%s data=%s\n",
321 sp->object_len, sp->object_name, sp->object);
322 p_ctx->backup = true;
323 printf("test-plugin-fd: startBackupFile\n");
328 * Done with backup of this file
330 static bRC endBackupFile(bpContext *ctx)
333 * We would return bRC_More if we wanted startBackupFile to be
334 * called again to backup another file
341 * Bacula is calling us to do the actual I/O
343 static bRC pluginIO(bpContext *ctx, struct io_pkt *io)
345 struct plugin_ctx *p_ctx = (struct plugin_ctx *)ctx->pContext;
356 * Bacula is notifying us that a plugin name string was found, and
357 * passing us the plugin command, so we can prepare for a restore.
359 static bRC startRestoreFile(bpContext *ctx, const char *cmd)
361 printf("test-plugin-fd: startRestoreFile cmd=%s\n", cmd);
366 * Bacula is notifying us that the plugin data has terminated, so
367 * the restore for this particular file is done.
369 static bRC endRestoreFile(bpContext *ctx)
371 printf("test-plugin-fd: endRestoreFile\n");
376 * This is called during restore to create the file (if necessary)
377 * We must return in rp->create_status:
380 * CF_SKIP -- skip processing this file
381 * CF_EXTRACT -- extract the file (i.e.call i/o routines)
382 * CF_CREATED -- created, but no content to extract (typically directories)
385 static bRC createFile(bpContext *ctx, struct restore_pkt *rp)
387 printf("test-plugin-fd: createFile\n");
388 if (strlen(rp->where) > 512) {
389 printf("Restore target dir too long. Restricting to first 512 bytes.\n");
391 strncpy(((struct plugin_ctx *)ctx->pContext)->where, rp->where, 513);
392 ((struct plugin_ctx *)ctx->pContext)->replace = rp->replace;
393 rp->create_status = CF_EXTRACT;
398 * We will get here if the File is a directory after everything
399 * is written in the directory.
401 static bRC setFileAttributes(bpContext *ctx, struct restore_pkt *rp)
403 printf("test-plugin-fd: setFileAttributes\n");