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) 2000-2004 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 *device_allocation(void *arg);
43 #define CONFIG_FILE "bacula-sd.conf" /* Default config file */
46 /* Global variables exported */
47 char OK_msg[] = "3000 OK\n";
48 char TERM_msg[] = "3999 Terminate\n";
49 STORES *me = NULL; /* our Global resource */
50 bool forge_on = false; /* proceed inspite of I/O errors */
52 static uint32_t VolSessionId = 0;
53 uint32_t VolSessionTime;
56 /* Global static variables */
57 static int foreground = 0;
58 static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
59 static workq_t dird_workq; /* queue for processing connections */
65 "\nVersion: " VERSION " (" BDATE ")\n\n"
66 "Usage: stored [options] [-c config_file] [config_file]\n"
67 " -c <file> use <file> as configuration file\n"
68 " -dnn set debug level to nn\n"
69 " -f run in foreground (for debugging)\n"
70 " -g <group> set groupid to group\n"
71 " -p proceed despite I/O errors\n"
72 " -s no signals (for debugging)\n"
73 " -t test - read config and exit\n"
74 " -u <user> userid to <user>\n"
75 " -v verbose user messages\n"
76 " -? print this message.\n"
81 /*********************************************************************
83 * Main Bacula Unix Storage Daemon
86 int main (int argc, char *argv[])
89 int no_signals = FALSE;
90 int test_config = FALSE;
96 my_name_is(argc, argv, "bacula-sd");
97 textdomain("bacula-sd");
99 daemon_start_time = time(NULL);
102 if (TAPE_BSIZE % DEV_BSIZE != 0 || TAPE_BSIZE / DEV_BSIZE == 0) {
103 Emsg2(M_ABORT, 0, "Tape block size (%d) not multiple of system size (%d)\n",
104 TAPE_BSIZE, DEV_BSIZE);
106 if (TAPE_BSIZE != (1 << (ffs(TAPE_BSIZE)-1))) {
107 Emsg1(M_ABORT, 0, "Tape block size (%d) is not a power of 2\n", TAPE_BSIZE);
110 while ((ch = getopt(argc, argv, "c:d:fg:pstu:v?")) != -1) {
112 case 'c': /* configuration file */
113 if (configfile != NULL) {
116 configfile = bstrdup(optarg);
119 case 'd': /* debug level */
120 debug_level = atoi(optarg);
121 if (debug_level <= 0) {
126 case 'f': /* run in foreground */
130 case 'g': /* set group id */
134 case 'p': /* proceed in spite of I/O errors */
138 case 's': /* no signals */
146 case 'u': /* set uid */
150 case 'v': /* verbose */
164 if (configfile != NULL) {
167 configfile = bstrdup(*argv);
175 init_signals(terminate_stored);
179 if (configfile == NULL) {
180 configfile = bstrdup(CONFIG_FILE);
183 parse_config(configfile);
191 daemon_start(); /* become daemon */
192 init_stack_dump(); /* pick up new pid */
195 create_pid_file(me->pid_directory, "bacula-sd", me->SDport);
196 read_state_file(me->working_directory, "bacula-sd", me->SDport);
200 /* Ensure that Volume Session Time and Id are both
201 * set and are both non-zero.
203 VolSessionTime = (long)daemon_start_time;
204 if (VolSessionTime == 0) { /* paranoid */
205 Emsg0(M_ABORT, 0, _("Volume Session Time is ZERO!\n"));
208 /* Make sure on Solaris we can run concurrent, watch dog + servers + misc */
209 set_thread_concurrency(me->max_concurrent_jobs * 2 + 4);
212 * Start the device allocation thread
214 if (pthread_create(&thid, NULL, device_allocation, NULL) != 0) {
215 Emsg1(M_ABORT, 0, _("Unable to create thread. ERR=%s\n"), strerror(errno));
218 start_watchdog(); /* start watchdog thread */
220 init_jcr_subsystem(); /* start JCR watchdogs etc. */
223 * Sleep a bit to give device thread a chance to lock the resource
224 * chain before we start the server.
228 /* Single server used for Director and File daemon */
229 bnet_thread_server(me->SDaddr, me->SDport, me->max_concurrent_jobs * 2 + 1,
230 &dird_workq, connection_request);
231 exit(1); /* to keep compiler quiet */
234 /* Return a new Session Id */
235 uint32_t newVolSessionId()
246 /* Check Configuration file for necessary info */
247 static void check_config()
250 me = (STORES *)GetNextRes(R_STORAGE, NULL);
253 Emsg1(M_ERROR_TERM, 0, _("No Storage resource defined in %s. Cannot continue.\n"),
257 my_name_is(0, (char **)NULL, me->hdr.name); /* Set our real name */
259 if (GetNextRes(R_STORAGE, (RES *)me) != NULL) {
261 Emsg1(M_ERROR_TERM, 0, _("Only one Storage resource permitted in %s\n"),
264 if (GetNextRes(R_DIRECTOR, NULL) == NULL) {
266 Emsg1(M_ERROR_TERM, 0, _("No Director resource defined in %s. Cannot continue.\n"),
269 if (GetNextRes(R_DEVICE, NULL) == NULL){
271 Emsg1(M_ERROR_TERM, 0, _("No Device resource defined in %s. Cannot continue.\n"),
275 me->messages = (MSGS *)GetNextRes(R_MSGS, NULL);
277 Emsg1(M_ERROR_TERM, 0, _("No Messages resource defined in %s. Cannot continue.\n"),
281 close_msg(NULL); /* close temp message handler */
282 init_msg(NULL, me->messages); /* open daemon message handler */
286 if (!me->working_directory) {
287 Emsg1(M_ERROR_TERM, 0, _("No Working Directory defined in %s. Cannot continue.\n"),
291 set_working_directory(me->working_directory);
295 * We are started as a separate thread. The
296 * resources are alread locked.
298 static void *device_allocation(void *arg)
303 pthread_detach(pthread_self());
305 foreach_res(device, R_DEVICE) {
306 Dmsg1(90, "calling init_dev %s\n", device->device_name);
307 device->dev = init_dev(NULL, device);
308 Dmsg1(10, "SD init done %s\n", device->device_name);
310 Emsg1(M_ERROR, 0, _("Could not initialize %s\n"), device->device_name);
314 if (device->cap_bits & CAP_ALWAYSOPEN) {
315 Dmsg1(20, "calling first_open_device %s\n", device->device_name);
316 if (!first_open_device(device->dev)) {
317 Emsg1(M_ERROR, 0, _("Could not open device %s\n"), device->device_name);
320 if (device->cap_bits & CAP_AUTOMOUNT && device->dev &&
321 device->dev->state & ST_OPENED) {
324 jcr = new_jcr(sizeof(JCR), stored_free_jcr);
325 jcr->device = device;
326 dcr = new_dcr(jcr, device->dev);
327 switch (read_dev_volume_label(jcr, device->dev, dcr->block)) {
331 Emsg1(M_WARNING, 0, _("Could not mount device %s\n"), device->device_name);
342 /* Clean up and then exit */
343 void terminate_stored(int sig)
345 static int in_here = FALSE;
349 if (in_here) { /* prevent loops */
354 if (sig == SIGTERM) { /* normal shutdown request? */
356 * This is a normal shutdown request. We wiffle through
357 * all open jobs canceling them and trying to wake
358 * them up so that they will report back the correct
364 free_locked_jcr(jcr);
365 if (jcr->JobId == 0) {
366 continue; /* ignore console */
368 set_jcr_job_status(jcr, JS_Canceled);
369 fd = jcr->file_bsock;
371 fd->timed_out = TRUE;
372 Dmsg1(100, "killing JobId=%d\n", jcr->JobId);
373 pthread_kill(jcr->my_thread_id, TIMEOUT_SIGNAL);
374 if (jcr->device && jcr->device->dev && jcr->device->dev->dev_blocked) {
375 pthread_cond_signal(&jcr->device->dev->wait_next_vol);
377 bmicrosleep(0, 50000);
381 bmicrosleep(0, 500000); /* give them 1/2 sec to clean up */
384 write_state_file(me->working_directory, "bacula-sd", me->SDport);
385 delete_pid_file(me->pid_directory, "bacula-sd", me->SDport);
387 Dmsg1(200, "In terminate_stored() sig=%d\n", sig);
390 foreach_res(device, R_DEVICE) {
392 term_dev(device->dev);
399 free_config_resources();
401 if (debug_level > 10) {
402 print_memory_pool_stats();
408 sm_dump(false); /* dump orphaned buffers */