2 Unix SMB/CIFS implementation.
4 Send messages to other Samba daemons
6 Copyright (C) Tim Potter 2003
7 Copyright (C) Andrew Tridgell 1994-1998
8 Copyright (C) Martin Pool 2001-2002
9 Copyright (C) Simo Sorce 2002
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 2 of the License, or
14 (at your option) any later version.
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with this program; if not, write to the Free Software
23 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
28 /* Default timeout value when waiting for replies (in seconds) */
30 #define DEFAULT_TIMEOUT 10
32 static int timeout = DEFAULT_TIMEOUT;
33 static int num_replies; /* Used by message callback fns */
35 /* Send a message to a destination pid. Zero means broadcast smbd. */
37 static BOOL send_message(pid_t pid, int msg_type, const void *buf, int len,
48 return message_send_pid(pid, msg_type, buf, len, duplicates);
50 tdb = tdb_open_log(lock_path("connections.tdb"), 0,
51 TDB_DEFAULT, O_RDWR, 0);
53 fprintf(stderr,"Failed to open connections database"
54 ": %s\n", strerror(errno));
58 ret = message_send_all(tdb,msg_type, buf, len, duplicates,
60 DEBUG(10,("smbcontrol/send_message: broadcast message to "
61 "%d processes\n", n_sent));
68 /* Wait for one or more reply messages */
70 static void wait_replies(BOOL multiple_replies)
72 time_t start_time = time(NULL);
74 /* Wait around a bit. This is pretty disgusting - we have to
75 busy-wait here as there is no nicer way to do it. */
79 if (num_replies > 0 && !multiple_replies)
82 } while (timeout - (time(NULL) - start_time) > 0);
85 /* Message handler callback that displays a string on stdout */
87 static void print_string_cb(int msg_type, pid_t pid, void *buf, size_t len)
89 printf("%.*s", (int)len, (const char *)buf);
93 /* Send no message. Useful for testing. */
95 static BOOL do_noop(const pid_t pid, const int argc, const char **argv)
98 fprintf(stderr, "Usage: smbcontrol <dest> noop\n");
102 /* Move along, nothing to see here */
107 /* Send a debug string */
109 static BOOL do_debug(const pid_t pid, const int argc, const char **argv)
112 fprintf(stderr, "Usage: smbcontrol <dest> debug "
118 pid, MSG_DEBUG, argv[1], strlen(argv[1]) + 1, False);
121 /* Force a browser election */
123 static BOOL do_election(const pid_t pid, const int argc, const char **argv)
126 fprintf(stderr, "Usage: smbcontrol <dest> force-election\n");
131 pid, MSG_FORCE_ELECTION, NULL, 0, False);
134 /* Ping a samba daemon process */
136 static void pong_cb(int msg_type, pid_t pid, void *buf, size_t len)
138 printf("PONG from pid %u\n", (unsigned int)pid);
142 static BOOL do_ping(const pid_t pid, const int argc, const char **argv)
145 fprintf(stderr, "Usage: smbcontrol <dest> ping\n");
149 /* Send a message and register our interest in a reply */
151 if (!send_message(pid, MSG_PING, NULL, 0, False))
154 message_register(MSG_PONG, pong_cb);
156 wait_replies(pid == 0);
158 /* No replies were received within the timeout period */
160 if (num_replies == 0)
161 printf("No replies received\n");
163 message_deregister(MSG_PONG);
168 /* Set profiling options */
170 static BOOL do_profile(const pid_t pid, const int argc, const char **argv)
175 fprintf(stderr, "Usage: smbcontrol <dest> profile "
176 "<off|count|on|flush>\n");
180 if (strcmp(argv[1], "off") == 0) {
182 } else if (strcmp(argv[1], "count") == 0) {
184 } else if (strcmp(argv[1], "on") == 0) {
186 } else if (strcmp(argv[1], "flush") == 0) {
189 fprintf(stderr, "Unknown profile command '%s'\n", argv[1]);
193 return send_message(pid, MSG_PROFILE, &v, sizeof(int), False);
196 /* Return the profiling level */
198 static void profilelevel_cb(int msg_type, pid_t pid, void *buf, size_t len)
205 if (len != sizeof(int)) {
206 fprintf(stderr, "invalid message length %ld returned\n",
211 memcpy(&level, buf, sizeof(int));
224 s = "count and time";
231 printf("Profiling %s on pid %u\n",s,(unsigned int)pid);
234 static void profilelevel_rqst(int msg_type, pid_t pid, void *buf, size_t len)
238 /* Send back a dummy reply */
240 send_message(pid, MSG_PROFILELEVEL, &v, sizeof(int), False);
243 static BOOL do_profilelevel(const pid_t pid, const int argc, const char **argv)
246 fprintf(stderr, "Usage: smbcontrol <dest> profilelevel\n");
250 /* Send a message and register our interest in a reply */
252 if (!send_message(pid, MSG_REQ_PROFILELEVEL, NULL, 0, False))
255 message_register(MSG_PROFILELEVEL, profilelevel_cb);
256 message_register(MSG_REQ_PROFILELEVEL, profilelevel_rqst);
258 wait_replies(pid == 0);
260 /* No replies were received within the timeout period */
262 if (num_replies == 0)
263 printf("No replies received\n");
265 message_deregister(MSG_PROFILE);
270 /* Display debug level settings */
272 static BOOL do_debuglevel(const pid_t pid, const int argc, const char **argv)
275 fprintf(stderr, "Usage: smbcontrol <dest> debuglevel\n");
279 /* Send a message and register our interest in a reply */
281 if (!send_message(pid, MSG_REQ_DEBUGLEVEL, NULL, 0, False))
284 message_register(MSG_DEBUGLEVEL, print_string_cb);
286 wait_replies(pid == 0);
288 /* No replies were received within the timeout period */
290 if (num_replies == 0)
291 printf("No replies received\n");
293 message_deregister(MSG_DEBUGLEVEL);
298 /* Send a print notify message */
300 static BOOL do_printnotify(const pid_t pid, const int argc, const char **argv)
304 /* Check for subcommand */
307 fprintf(stderr, "Must specify subcommand:\n");
308 fprintf(stderr, "\tqueuepause <printername>\n");
309 fprintf(stderr, "\tqueueresume <printername>\n");
310 fprintf(stderr, "\tjobpause <printername> <unix jobid>\n");
311 fprintf(stderr, "\tjobresume <printername> <unix jobid>\n");
312 fprintf(stderr, "\tjobdelete <printername> <unix jobid>\n");
313 fprintf(stderr, "\tprinter <printername> <comment|port|"
314 "driver> <value>\n");
321 if (strcmp(cmd, "queuepause") == 0) {
324 fprintf(stderr, "Usage: smbcontrol <dest> printnotify"
325 " queuepause <printername>\n");
329 notify_printer_status_byname(argv[2], PRINTER_STATUS_PAUSED);
333 } else if (strcmp(cmd, "queueresume") == 0) {
336 fprintf(stderr, "Usage: smbcontrol <dest> printnotify"
337 " queuereume <printername>\n");
341 notify_printer_status_byname(argv[2], PRINTER_STATUS_OK);
345 } else if (strcmp(cmd, "jobpause") == 0) {
349 fprintf(stderr, "Usage: smbcontrol <dest> printnotify"
350 " jobpause <printername> <unix-jobid>\n");
354 jobid = atoi(argv[3]);
356 notify_job_status_byname(
357 argv[2], jobid, JOB_STATUS_PAUSED,
358 SPOOLSS_NOTIFY_MSG_UNIX_JOBID);
362 } else if (strcmp(cmd, "jobresume") == 0) {
366 fprintf(stderr, "Usage: smbcontrol <dest> printnotify"
367 " jobpause <printername> <unix-jobid>\n");
371 jobid = atoi(argv[3]);
373 notify_job_status_byname(
374 argv[2], jobid, JOB_STATUS_QUEUED,
375 SPOOLSS_NOTIFY_MSG_UNIX_JOBID);
379 } else if (strcmp(cmd, "jobdelete") == 0) {
383 fprintf(stderr, "Usage: smbcontrol <dest> printnotify"
384 " jobpause <printername> <unix-jobid>\n");
388 jobid = atoi(argv[3]);
390 notify_job_status_byname(
391 argv[2], jobid, JOB_STATUS_DELETING,
392 SPOOLSS_NOTIFY_MSG_UNIX_JOBID);
394 notify_job_status_byname(
395 argv[2], jobid, JOB_STATUS_DELETING|
397 SPOOLSS_NOTIFY_MSG_UNIX_JOBID);
401 } else if (strcmp(cmd, "printer") == 0) {
405 fprintf(stderr, "Usage: smbcontrol <dest> printnotify "
406 "printer <printername> <comment|port|driver> "
411 if (strcmp(argv[3], "comment") == 0) {
412 attribute = PRINTER_NOTIFY_COMMENT;
413 } else if (strcmp(argv[3], "port") == 0) {
414 attribute = PRINTER_NOTIFY_PORT_NAME;
415 } else if (strcmp(argv[3], "driver") == 0) {
416 attribute = PRINTER_NOTIFY_DRIVER_NAME;
418 fprintf(stderr, "Invalid printer command '%s'\n",
423 notify_printer_byname(argv[2], attribute, argv[4]);
428 fprintf(stderr, "Invalid subcommand '%s'\n", cmd);
432 print_notify_send_messages(0);
438 static BOOL do_closeshare(const pid_t pid, const int argc, const char **argv)
441 fprintf(stderr, "Usage: smbcontrol <dest> close-share "
447 pid, MSG_SMB_FORCE_TDIS, argv[1], strlen(argv[1]) + 1, False);
450 /* Force a SAM synchronisation */
452 static BOOL do_samsync(const pid_t pid, const int argc, const char **argv)
455 fprintf(stderr, "Usage: smbcontrol <dest> samsync\n");
460 pid, MSG_SMB_SAM_SYNC, NULL, 0, False);
463 /* Force a SAM replication */
465 static BOOL do_samrepl(const pid_t pid, const int argc, const char **argv)
468 fprintf(stderr, "Usage: smbcontrol <dest> samrepl\n");
473 pid, MSG_SMB_SAM_REPL, NULL, 0, False);
476 /* Display talloc pool usage */
478 static BOOL do_poolusage(const pid_t pid, const int argc, const char **argv)
481 fprintf(stderr, "Usage: smbcontrol <dest> pool-usage\n");
485 /* Send a message and register our interest in a reply */
487 if (!send_message(pid, MSG_REQ_POOL_USAGE, NULL, 0, False))
490 message_register(MSG_POOL_USAGE, print_string_cb);
492 wait_replies(pid == 0);
494 /* No replies were received within the timeout period */
496 if (num_replies == 0)
497 printf("No replies received\n");
499 message_deregister(MSG_POOL_USAGE);
504 /* Perform a dmalloc mark */
506 static BOOL do_dmalloc_mark(const pid_t pid, const int argc, const char **argv)
509 fprintf(stderr, "Usage: smbcontrol <dest> dmalloc-mark\n");
514 pid, MSG_REQ_DMALLOC_MARK, NULL, 0, False);
517 /* Perform a dmalloc changed */
519 static BOOL do_dmalloc_changed(const pid_t pid, const int argc, const char **argv)
522 fprintf(stderr, "Usage: smbcontrol <dest> "
523 "dmalloc-log-changed\n");
528 pid, MSG_REQ_DMALLOC_LOG_CHANGED, NULL, 0, False);
531 /* Shutdown a server process */
533 static BOOL do_shutdown(const pid_t pid, const int argc, const char **argv)
536 fprintf(stderr, "Usage: smbcontrol <dest> shutdown\n");
540 return send_message(pid, MSG_SHUTDOWN, NULL, 0, False);
543 /* Notify a driver upgrade */
545 static BOOL do_drvupgrade(const pid_t pid, const int argc, const char **argv)
548 fprintf(stderr, "Usage: smbcontrol <dest> drvupgrade "
554 pid, MSG_DEBUG, argv[1], strlen(argv[1]) + 1, False);
557 static BOOL do_reload_config(const pid_t pid, const int argc, const char **argv)
560 fprintf(stderr, "Usage: smbcontrol <dest> reload-config\n");
564 return send_message(pid, MSG_SMB_CONF_UPDATED, NULL, 0, False);
567 /* A list of message type supported */
569 static const struct {
570 const char *name; /* Option name */
571 BOOL (*fn)(const pid_t pid, const int argc, const char **argv);
572 const char *help; /* Short help text */
574 { "debug", do_debug, "Set debuglevel" },
575 { "force-election", do_election,
576 "Force a browse election" },
577 { "ping", do_ping, "Elicit a response" },
578 { "profile", do_profile, "" },
579 { "profilelevel", do_profilelevel, "" },
580 { "debuglevel", do_debuglevel, "Display current debuglevels" },
581 { "printnotify", do_printnotify, "Send a print notify message" },
582 { "close-share", do_closeshare, "Forcibly disconnect a share" },
583 { "samsync", do_samsync, "Initiate SAM synchronisation" },
584 { "samrepl", do_samrepl, "Initiate SAM replication" },
585 { "pool-usage", do_poolusage, "Display talloc memory usage" },
586 { "dmalloc-mark", do_dmalloc_mark, "" },
587 { "dmalloc-log-changed", do_dmalloc_changed, "" },
588 { "shutdown", do_shutdown, "Shut down daemon" },
589 { "drvupgrade", do_drvupgrade, "Notify a printer driver has changed" },
590 { "reload-config", do_reload_config, "Force smbd or winbindd to reload config file"},
591 { "noop", do_noop, "Do nothing" },
595 /* Display usage information */
597 static void usage(poptContext *pc)
601 poptPrintHelp(*pc, stderr, 0);
603 fprintf(stderr, "\n");
604 fprintf(stderr, "<destination> is one of \"nmbd\", \"smbd\" or a "
607 fprintf(stderr, "\n");
608 fprintf(stderr, "<message-type> is one of:\n");
610 for (i = 0; msg_types[i].name; i++)
611 fprintf(stderr, "\t%-30s%s\n", msg_types[i].name,
614 fprintf(stderr, "\n");
619 /* Return the pid number for a string destination */
621 static pid_t parse_dest(const char *dest)
625 /* Zero is a special return value for broadcast smbd */
627 if (strequal(dest, "smbd"))
630 /* Try self - useful for testing */
632 if (strequal(dest, "self"))
635 /* Check for numeric pid number */
637 if ((pid = atoi(dest)) != 0)
640 /* Look up other destinations in pidfile directory */
642 if ((pid = pidfile_pid(dest)) != 0)
645 fprintf(stderr,"Can't find pid for destination '%s'\n", dest);
650 /* Execute smbcontrol command */
652 static BOOL do_command(int argc, const char **argv)
654 const char *dest = argv[0], *command = argv[1];
658 /* Check destination */
660 if ((pid = parse_dest(dest)) == -1)
665 for (i = 0; msg_types[i].name; i++) {
666 if (strequal(command, msg_types[i].name))
667 return msg_types[i].fn(pid, argc - 1, argv + 1);
670 fprintf(stderr, "smbcontrol: unknown command '%s'\n", command);
677 int main(int argc, const char **argv)
682 static struct poptOption wbinfo_options[] = {
683 { "timeout", 't', POPT_ARG_INT, &timeout, 't',
684 "Set timeout value in seconds", "TIMEOUT" },
686 { "configfile", 's', POPT_ARG_STRING, NULL, 's',
687 "Use alternative configuration file", "CONFIGFILE" },
692 struct poptOption options[] = {
693 { NULL, 0, POPT_ARG_INCLUDE_TABLE, wbinfo_options, 0,
701 setup_logging(argv[0],True);
703 /* Parse command line arguments using popt */
706 "smbcontrol", argc, (const char **)argv, options, 0);
708 poptSetOtherOptionHelp(pc, "[OPTION...] <destination> <message-type> "
714 while ((opt = poptGetNextOpt(pc)) != -1) {
716 case 't': /* --timeout */
719 case 's': /* --configfile */
720 pstrcpy(dyn_CONFIGFILE, optarg);
724 fprintf(stderr, "Invalid option\n");
725 poptPrintHelp(pc, stderr, 0);
730 /* We should now have the remaining command line arguments in
731 argv. The argc parameter should have been decremented to the
732 correct value in the above switch statement. */
734 argv = (const char **)poptGetArgs(pc);
735 argc--; /* Don't forget about argv[0] */
740 lp_load(dyn_CONFIGFILE,False,False,False);
742 /* Need to invert sense of return code -- samba
743 * routines mostly return True==1 for success, but
746 return !do_command(argc, argv);