2 * Second generation Storage daemon.
4 * It accepts a number of simple commands from the File daemon
5 * and acts on them. When a request to append data is made,
6 * it opens a data channel and accepts data from the
13 Copyright (C) 2000, 2001, 2002 Kern Sibbald and John Walker
15 This program is free software; you can redistribute it and/or
16 modify it under the terms of the GNU General Public License as
17 published by the Free Software Foundation; either version 2 of
18 the License, or (at your option) any later version.
20 This program is distributed in the hope that it will be useful,
21 but WITHOUT ANY WARRANTY; without even the implied warranty of
22 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
23 General Public License for more details.
25 You should have received a copy of the GNU General Public
26 License along with this program; if not, write to the Free
27 Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
35 /* Imported functions */
38 /* Forward referenced functions */
39 void terminate_stored(int sig);
40 static void check_config();
41 static void *director_thread(void *arg);
43 #define CONFIG_FILE "bacula-sd.conf" /* Default config file */
46 /* Global variables exported */
49 struct s_shm *shm; /* memory shared with children */
50 BSHM bshm; /* shared memory control packet */
53 /* This is our own global resource */
56 static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
57 static uint32_t VolSessionId = 0;
58 uint32_t VolSessionTime;
60 static char *configfile;
61 static int foreground = 0;
63 static workq_t dird_workq; /* queue for processing connections */
64 static workq_t filed_workq; /* queue for processing connections */
70 "\nVersion: " VERSION " (" DATE ")\n\n"
71 "Usage: stored [-s -f ] [-c config_file] [-d debug_level] [config_file]\n"
72 " -c <file> use <file> as configuration file\n"
73 " -dnn set debug level to nn\n"
74 " -f run in foreground (for debugging)\n"
75 " -s no signals (for debugging)\n"
76 " -t test - read config and exit\n"
77 " -? print this message.\n"
82 /*********************************************************************
84 * Main Bacula Unix Storage Daemon
87 int main (int argc, char *argv[])
90 int no_signals = FALSE;
91 int test_config = FALSE;
97 my_name_is(argc, argv, "stored");
99 daemon_start_time = time(NULL);
100 memset(&last_job, 0, sizeof(last_job));
103 if (TAPE_BSIZE % DEV_BSIZE != 0 || TAPE_BSIZE / DEV_BSIZE == 0) {
104 Emsg2(M_ABORT, 0, "Tape block size (%d) not multiple of system size (%d)\n",
105 TAPE_BSIZE, DEV_BSIZE);
107 if (TAPE_BSIZE != (1 << (ffs(TAPE_BSIZE)-1))) {
108 Emsg1(M_ABORT, 0, "Tape block size (%d) is not a power of 2\n", TAPE_BSIZE);
111 while ((ch = getopt(argc, argv, "c:d:fst?")) != -1) {
113 case 'c': /* configuration file */
114 if (configfile != NULL) {
117 configfile = bstrdup(optarg);
120 case 'd': /* debug level */
121 debug_level = atoi(optarg);
122 if (debug_level <= 0) {
127 case 'f': /* run in foreground */
131 case 's': /* no signals */
149 if (configfile != NULL) {
152 configfile = bstrdup(*argv);
160 init_signals(terminate_stored);
164 if (configfile == NULL) {
165 configfile = bstrdup(CONFIG_FILE);
168 parse_config(configfile);
177 daemon_start(); /* become daemon */
178 init_stack_dump(); /* pick up new pid */
181 create_pid_file(me->pid_directory, "bacula-sd", me->SDport);
183 /* ****FIXME**** clean this up */
184 /* Create and attach to shared memory. This is a
185 * hold over from the days of child processes.
186 * Note, in reality all memory is shared. This
187 * is just a global buffer for the device packets.
189 shm = (s_shm *) malloc(sizeof(struct s_shm));
190 /* Zero shared memory */
191 memset(shm, 0, sizeof(struct s_shm));
193 /* Ensure that Volume Session Time and Id are both
194 * set and are both non-zero.
196 VolSessionTime = (long)daemon_start_time;
197 if (VolSessionTime == 0) { /* paranoid */
198 Emsg0(M_ABORT, 0, _("Volume Session Time is ZERO!\n"));
202 for (device=NULL,i=0; (device=(DEVRES *)GetNextRes(R_DEVICE, (RES *)device)); i++) {
203 if (i >= MAX_DEVICES) {
205 Emsg1(M_ABORT, 0, _("Too many Device Resources. Max=%d\n"), MAX_DEVICES);
207 Dmsg1(90, "calling init_dev %s\n", device->device_name);
208 device->dev = init_dev(&shm->dev[i], device->device_name);
209 /* Copy some attributes from the Device Resource to the DEV structure */
211 device->dev->capabilities = device->cap_bits;
212 device->dev->min_block_size = device->min_block_size;
213 device->dev->max_block_size = device->max_block_size;
214 device->dev->max_volume_jobs = device->max_volume_jobs;
215 device->dev->max_volume_files = device->max_volume_files;
216 device->dev->max_volume_size = device->max_volume_size;
217 device->dev->max_file_size = device->max_file_size;
218 device->dev->volume_capacity = device->volume_capacity;
219 device->dev->max_rewind_wait = device->max_rewind_wait;
220 device->dev->max_open_wait = device->max_open_wait;
221 device->dev->device = device;
223 Dmsg1(10, "Init done %s\n", device->device_name);
225 Emsg1(M_ERROR, 0, _("Could not initialize %s\n"), device->device_name);
227 if (device->cap_bits & CAP_ALWAYSOPEN) {
228 Dmsg1(20, "calling open_device %s\n", device->device_name);
229 if (!open_device(device->dev)) {
230 Emsg1(M_ERROR, 0, _("Could not open device %s\n"), device->device_name);
233 if (device->cap_bits & CAP_AUTOMOUNT && device->dev &&
234 device->dev->state & ST_OPENED) {
237 block = new_block(device->dev);
238 jcr = new_jcr(sizeof(JCR), stored_free_jcr);
239 switch (read_dev_volume_label(jcr, device->dev, block)) {
243 Emsg1(M_WARNING, 0, _("Could not mount device %s\n"), device->device_name);
253 set_thread_concurrency(me->max_concurrent_jobs * 2 +
254 4 /* watch dog + servers + misc */);
256 start_watchdog(); /* start watchdog thread */
259 * Here we support either listening on one port or on two ports
261 if (me->SDDport == 0 || me->SDDport == me->SDport) {
262 /* Single server used for Director and File daemon */
263 bnet_thread_server(me->SDport, me->max_concurrent_jobs * 2,
264 &dird_workq, connection_request);
266 /* Start the Director server */
267 if ((status=pthread_create(&dirid, NULL, director_thread,
268 (void *)me->SDport)) != 0) {
269 Emsg1(M_ABORT, 0, _("Cannot create Director thread: %s\n"), strerror(status));
271 /* Start File daemon server */
272 bnet_thread_server(me->SDDport, 10, &filed_workq, connection_from_filed);
276 exit(1); /* to keep compiler quiet */
279 static void *director_thread(void *arg)
281 int dir_port = (int)arg;
282 pthread_detach(pthread_self());
283 bnet_thread_server(dir_port, 10, &dird_workq, connection_request);
287 /* Return a new Session Id */
288 uint32_t newVolSessionId()
299 /* Check Configuration file for necessary info */
300 static void check_config()
302 struct stat stat_buf;
305 me = (STORES *)GetNextRes(R_STORAGE, NULL);
308 Emsg1(M_ABORT, 0, _("No Storage resource defined in %s. Cannot continue.\n"),
312 my_name_is(0, (char **)NULL, me->hdr.name); /* Set our real name */
314 if (GetNextRes(R_STORAGE, (RES *)me) != NULL) {
316 Emsg1(M_ABORT, 0, _("Only one Storage resource permitted in %s\n"),
319 if (GetNextRes(R_DIRECTOR, NULL) == NULL) {
321 Emsg1(M_ABORT, 0, _("No Director resource defined in %s. Cannot continue.\n"),
324 if (GetNextRes(R_DEVICE, NULL) == NULL){
326 Emsg1(M_ABORT, 0, _("No Device resource defined in %s. Cannot continue.\n"),
330 me->messages = (MSGS *)GetNextRes(R_MSGS, NULL);
332 Emsg1(M_ABORT, 0, _("No Messages resource defined in %s. Cannot continue.\n"),
336 close_msg(NULL); /* close temp message handler */
337 init_msg(NULL, me->messages); /* open daemon message handler */
341 if (!me->working_directory) {
342 Emsg1(M_ABORT, 0, _("No Working Directory defined in %s. Cannot continue.\n"),
345 if (stat(me->working_directory, &stat_buf) != 0) {
346 Emsg1(M_ABORT, 0, _("Working Directory: %s not found. Cannot continue.\n"),
347 me->working_directory);
349 if (!S_ISDIR(stat_buf.st_mode)) {
350 Emsg1(M_ABORT, 0, _("Working Directory: %s is not a directory. Cannot continue.\n"),
351 me->working_directory);
353 working_directory = me->working_directory;
356 /* Clean up and then exit */
357 void terminate_stored(int sig)
359 static int in_here = FALSE;
362 if (in_here) { /* prevent loops */
367 delete_pid_file(me->pid_directory, "bacula-sd", me->SDport);
370 Dmsg0(200, "In terminate_stored()\n");
373 for (device=NULL; (device=(DEVRES *)GetNextRes(R_DEVICE, (RES *)device)); ) {
375 term_dev(device->dev);
382 free_config_resources();
384 if (debug_level > 10) {
385 print_memory_pool_stats();
394 sm_dump(False); /* dump orphaned buffers */