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();
42 #define CONFIG_FILE "bacula-sd.conf" /* Default config file */
45 /* Global variables exported */
48 struct s_shm *shm; /* memory shared with children */
49 BSHM bshm; /* shared memory control packet */
52 /* This is our own global resource */
55 static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
56 static uint32_t VolSessionId = 0;
57 uint32_t VolSessionTime;
59 static char *configfile;
60 static int foreground = 0;
62 static workq_t dird_workq; /* queue for processing connections */
68 "\nVersion: " VERSION " (" DATE ")\n\n"
69 "Usage: stored [-s -f ] [-c config_file] [-d debug_level] [config_file]\n"
70 " -c <file> use <file> as configuration file\n"
71 " -dnn set debug level to nn\n"
72 " -f run in foreground (for debugging)\n"
73 " -s no signals (for debugging)\n"
74 " -t test - read config and exit\n"
75 " -? print this message.\n"
80 /*********************************************************************
82 * Main Bacula Unix Storage Daemon
85 int main (int argc, char *argv[])
88 int no_signals = FALSE;
89 int test_config = FALSE;
93 my_name_is(argc, argv, "stored");
95 daemon_start_time = time(NULL);
96 memset(&last_job, 0, sizeof(last_job));
99 if (TAPE_BSIZE % DEV_BSIZE != 0 || TAPE_BSIZE / DEV_BSIZE == 0) {
100 Emsg2(M_ABORT, 0, "Tape block size (%d) not multiple of system size (%d)\n",
101 TAPE_BSIZE, DEV_BSIZE);
103 if (TAPE_BSIZE != (1 << (ffs(TAPE_BSIZE)-1))) {
104 Emsg1(M_ABORT, 0, "Tape block size (%d) is not a power of 2\n", TAPE_BSIZE);
107 while ((ch = getopt(argc, argv, "c:d:fst?")) != -1) {
109 case 'c': /* configuration file */
110 if (configfile != NULL) {
113 configfile = bstrdup(optarg);
116 case 'd': /* debug level */
117 debug_level = atoi(optarg);
118 if (debug_level <= 0) {
123 case 'f': /* run in foreground */
127 case 's': /* no signals */
145 if (configfile != NULL) {
148 configfile = bstrdup(*argv);
156 init_signals(terminate_stored);
160 if (configfile == NULL) {
161 configfile = bstrdup(CONFIG_FILE);
164 parse_config(configfile);
173 daemon_start(); /* become daemon */
174 init_stack_dump(); /* pick up new pid */
177 create_pid_file(me->pid_directory, "bacula-sd", me->SDport);
179 /* ****FIXME**** clean this up */
180 /* Create and attach to shared memory. This is a
181 * hold over from the days of child processes.
182 * Note, in reality all memory is shared. This
183 * is just a global buffer for the device packets.
185 shm = (s_shm *) malloc(sizeof(struct s_shm));
186 /* Zero shared memory */
187 memset(shm, 0, sizeof(struct s_shm));
189 /* Ensure that Volume Session Time and Id are both
190 * set and are both non-zero.
192 VolSessionTime = (long)daemon_start_time;
193 if (VolSessionTime == 0) { /* paranoid */
194 Emsg0(M_ABORT, 0, _("Volume Session Time is ZERO!\n"));
198 for (device=NULL,i=0; (device=(DEVRES *)GetNextRes(R_DEVICE, (RES *)device)); i++) {
199 if (i >= MAX_DEVICES) {
201 Emsg1(M_ABORT, 0, _("Too many Device Resources. Max=%d\n"), MAX_DEVICES);
203 Dmsg1(90, "calling init_dev %s\n", device->device_name);
204 device->dev = init_dev(&shm->dev[i], device->device_name);
205 /* Copy some attributes from the Device Resource to the DEV structure */
207 device->dev->capabilities = device->cap_bits;
208 device->dev->min_block_size = device->min_block_size;
209 device->dev->max_block_size = device->max_block_size;
210 device->dev->max_volume_jobs = device->max_volume_jobs;
211 device->dev->max_volume_files = device->max_volume_files;
212 device->dev->max_volume_size = device->max_volume_size;
213 device->dev->max_file_size = device->max_file_size;
214 device->dev->volume_capacity = device->volume_capacity;
215 device->dev->max_rewind_wait = device->max_rewind_wait;
216 device->dev->max_open_wait = device->max_open_wait;
217 device->dev->device = device;
219 Dmsg1(10, "SD init done %s\n", device->device_name);
221 Emsg1(M_ERROR, 0, _("Could not initialize %s\n"), device->device_name);
223 if (device->cap_bits & CAP_ALWAYSOPEN) {
224 Dmsg1(20, "calling open_device %s\n", device->device_name);
225 if (!open_device(device->dev)) {
226 Emsg1(M_ERROR, 0, _("Could not open device %s\n"), device->device_name);
229 if (device->cap_bits & CAP_AUTOMOUNT && device->dev &&
230 device->dev->state & ST_OPENED) {
233 block = new_block(device->dev);
234 jcr = new_jcr(sizeof(JCR), stored_free_jcr);
235 switch (read_dev_volume_label(jcr, device->dev, block)) {
239 Emsg1(M_WARNING, 0, _("Could not mount device %s\n"), device->device_name);
249 set_thread_concurrency(me->max_concurrent_jobs * 2 +
250 4 /* watch dog + servers + misc */);
252 start_watchdog(); /* start watchdog thread */
254 /* Single server used for Director and File daemon */
255 bnet_thread_server(me->SDaddr, me->SDport, me->max_concurrent_jobs * 2 + 1,
256 &dird_workq, connection_request);
257 exit(1); /* to keep compiler quiet */
260 /* Return a new Session Id */
261 uint32_t newVolSessionId()
272 /* Check Configuration file for necessary info */
273 static void check_config()
275 struct stat stat_buf;
278 me = (STORES *)GetNextRes(R_STORAGE, NULL);
281 Emsg1(M_ABORT, 0, _("No Storage resource defined in %s. Cannot continue.\n"),
285 my_name_is(0, (char **)NULL, me->hdr.name); /* Set our real name */
287 if (GetNextRes(R_STORAGE, (RES *)me) != NULL) {
289 Emsg1(M_ABORT, 0, _("Only one Storage resource permitted in %s\n"),
292 if (GetNextRes(R_DIRECTOR, NULL) == NULL) {
294 Emsg1(M_ABORT, 0, _("No Director resource defined in %s. Cannot continue.\n"),
297 if (GetNextRes(R_DEVICE, NULL) == NULL){
299 Emsg1(M_ABORT, 0, _("No Device resource defined in %s. Cannot continue.\n"),
303 me->messages = (MSGS *)GetNextRes(R_MSGS, NULL);
305 Emsg1(M_ABORT, 0, _("No Messages resource defined in %s. Cannot continue.\n"),
309 close_msg(NULL); /* close temp message handler */
310 init_msg(NULL, me->messages); /* open daemon message handler */
314 if (!me->working_directory) {
315 Emsg1(M_ABORT, 0, _("No Working Directory defined in %s. Cannot continue.\n"),
318 if (stat(me->working_directory, &stat_buf) != 0) {
319 Emsg1(M_ABORT, 0, _("Working Directory: %s not found. Cannot continue.\n"),
320 me->working_directory);
322 if (!S_ISDIR(stat_buf.st_mode)) {
323 Emsg1(M_ABORT, 0, _("Working Directory: %s is not a directory. Cannot continue.\n"),
324 me->working_directory);
326 working_directory = me->working_directory;
329 /* Clean up and then exit */
330 void terminate_stored(int sig)
332 static int in_here = FALSE;
335 if (in_here) { /* prevent loops */
340 delete_pid_file(me->pid_directory, "bacula-sd", me->SDport);
343 Dmsg0(200, "In terminate_stored()\n");
346 for (device=NULL; (device=(DEVRES *)GetNextRes(R_DEVICE, (RES *)device)); ) {
348 term_dev(device->dev);
355 free_config_resources();
357 if (debug_level > 10) {
358 print_memory_pool_stats();
367 sm_dump(False); /* dump orphaned buffers */