4 Copyright (C) Andrew Tridgell 2007
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, see <http://www.gnu.org/licenses/>.
22 #include "system/filesys.h"
23 #include "system/wait.h"
24 #include "system/dir.h"
25 #include "system/locale.h"
26 #include "../include/ctdb_private.h"
27 #include "lib/events/events.h"
28 #include "../common/rb_tree.h"
32 const char *script_running;
35 static const char *call_names[] = {
48 static void ctdb_event_script_timeout(struct event_context *ev, struct timed_event *te, struct timeval t, void *p);
51 ctdbd sends us a SIGTERM when we should time out the current script
53 static void sigterm(int sig)
55 char tbuf[100], buf[200];
58 DEBUG(DEBUG_ERR,("Timed out running script '%s' after %.1f seconds pid :%d\n",
59 child_state.script_running, timeval_elapsed(&child_state.start), getpid()));
63 strftime(tbuf, sizeof(tbuf)-1, "%Y%m%d%H%M%S", localtime(&t));
64 sprintf(buf, "pstree -p >/tmp/ctdb.event.%s.%d", tbuf, getpid());
67 DEBUG(DEBUG_ERR,("Logged timedout eventscript : %s\n", buf));
69 /* all the child processes will be running in the same process group */
70 kill(-getpgrp(), SIGKILL);
74 struct ctdb_event_script_state {
75 struct ctdb_context *ctdb;
77 /* Warning: this can free us! */
78 void (*callback)(struct ctdb_context *, int, void *);
82 enum ctdb_eventscript_call call;
84 struct timeval timeout;
86 struct ctdb_monitor_script_status *scripts;
90 struct ctdb_monitor_script_status {
91 struct ctdb_monitor_script_status *next;
94 struct timeval finished;
99 /* called from ctdb_logging when we have received output on STDERR from
100 * one of the eventscripts
102 int ctdb_log_event_script_output(struct ctdb_context *ctdb, char *str, uint16_t len)
104 struct ctdb_monitor_script_status *script;
106 if (ctdb->current_monitor == NULL) {
110 script = ctdb->current_monitor->scripts;
111 if (script == NULL) {
115 if (script->output == NULL) {
116 script->output = talloc_asprintf(script, "%*.*s", len, len, str);
118 script->output = talloc_asprintf_append(script->output, "%*.*s", len, len, str);
124 /* called from the event script child process when we are starting a new
127 int32_t ctdb_control_event_script_init(struct ctdb_context *ctdb)
129 DEBUG(DEBUG_INFO, ("event script init called\n"));
131 if (ctdb->current_monitor == NULL) {
132 DEBUG(DEBUG_ERR,(__location__ " current_monitor_status_ctx is NULL when initing script\n"));
140 /* called from the event script child process when we are star running
143 int32_t ctdb_control_event_script_start(struct ctdb_context *ctdb, TDB_DATA indata)
145 const char *name = (const char *)indata.dptr;
146 struct ctdb_monitor_script_status *script;
148 DEBUG(DEBUG_INFO, ("event script start called : %s\n", name));
150 if (ctdb->current_monitor == NULL) {
151 DEBUG(DEBUG_ERR,(__location__ " current_monitor_status_ctx is NULL when starting script\n"));
155 script = talloc_zero(ctdb->current_monitor, struct ctdb_monitor_script_status);
156 if (script == NULL) {
157 DEBUG(DEBUG_ERR,(__location__ " Failed to talloc ctdb_monitor_script_status for script %s\n", name));
161 script->next = ctdb->current_monitor->scripts;
162 script->name = talloc_strdup(script, name);
163 CTDB_NO_MEMORY(ctdb, script->name);
164 script->start = timeval_current();
165 ctdb->current_monitor->scripts = script;
170 /* called from the event script child process when we have finished running
173 int32_t ctdb_control_event_script_stop(struct ctdb_context *ctdb, TDB_DATA indata)
175 int32_t res = *((int32_t *)indata.dptr);
176 struct ctdb_monitor_script_status *script;
178 if (ctdb->current_monitor == NULL) {
179 DEBUG(DEBUG_ERR,(__location__ " current_monitor_status_ctx is NULL when script finished\n"));
183 script = ctdb->current_monitor->scripts;
184 if (script == NULL) {
185 DEBUG(DEBUG_ERR,(__location__ " script is NULL when the script had finished\n"));
189 script->finished = timeval_current();
190 script->status = res;
192 DEBUG(DEBUG_INFO, ("event script stop called for script:%s duration:%.1f status:%d\n", script->name, timeval_elapsed(&script->start), (int)res));
197 static struct ctdb_monitoring_wire *marshall_monitoring_scripts(TALLOC_CTX *mem_ctx, struct ctdb_monitoring_wire *monitoring_scripts, struct ctdb_monitor_script_status *script)
199 struct ctdb_monitoring_script_wire script_wire;
202 if (script == NULL) {
203 return monitoring_scripts;
205 monitoring_scripts = marshall_monitoring_scripts(mem_ctx, monitoring_scripts, script->next);
206 if (monitoring_scripts == NULL) {
210 bzero(&script_wire, sizeof(struct ctdb_monitoring_script_wire));
211 strncpy(script_wire.name, script->name, MAX_SCRIPT_NAME);
212 script_wire.start = script->start;
213 script_wire.finished = script->finished;
214 script_wire.status = script->status;
215 if (script->output != NULL) {
216 strncpy(script_wire.output, script->output, MAX_SCRIPT_OUTPUT);
219 size = talloc_get_size(monitoring_scripts);
220 monitoring_scripts = talloc_realloc_size(mem_ctx, monitoring_scripts, size + sizeof(struct ctdb_monitoring_script_wire));
221 if (monitoring_scripts == NULL) {
222 DEBUG(DEBUG_ERR,(__location__ " Failed to talloc_resize monitoring_scripts blob\n"));
226 memcpy(&monitoring_scripts->scripts[monitoring_scripts->num_scripts], &script_wire, sizeof(script_wire));
227 monitoring_scripts->num_scripts++;
229 return monitoring_scripts;
232 /* called from the event script child process when we have completed a
235 int32_t ctdb_control_event_script_finished(struct ctdb_context *ctdb)
237 DEBUG(DEBUG_INFO, ("event script finished called\n"));
239 if (ctdb->current_monitor == NULL) {
240 DEBUG(DEBUG_ERR,(__location__ " script_status is NULL when monitoring event finished\n"));
244 talloc_free(ctdb->last_status);
245 ctdb->last_status = talloc_size(ctdb, offsetof(struct ctdb_monitoring_wire, scripts));
246 if (ctdb->last_status == NULL) {
247 DEBUG(DEBUG_ERR,(__location__ " failed to talloc last_status\n"));
251 ctdb->last_status->num_scripts = 0;
252 ctdb->last_status = marshall_monitoring_scripts(ctdb, ctdb->last_status, ctdb->current_monitor->scripts);
253 talloc_free(ctdb->current_monitor->scripts);
254 ctdb->current_monitor->scripts = NULL;
259 int32_t ctdb_control_get_event_script_status(struct ctdb_context *ctdb, TDB_DATA *outdata)
261 struct ctdb_monitoring_wire *monitoring_scripts = ctdb->last_status;
263 if (monitoring_scripts == NULL) {
264 DEBUG(DEBUG_ERR,(__location__ " last_monitor_status_ctx is NULL when reading status\n"));
268 outdata->dsize = talloc_get_size(monitoring_scripts);
269 outdata->dptr = (uint8_t *)monitoring_scripts;
274 struct ctdb_script_tree_item {
279 struct ctdb_script_list {
280 struct ctdb_script_list *next;
285 /* Return true if OK, otherwise set errno. */
286 static bool check_executable(const char *dir, const char *name)
291 full = talloc_asprintf(NULL, "%s/%s", dir, name);
295 if (stat(full, &st) != 0) {
296 DEBUG(DEBUG_ERR,("Could not stat event script %s: %s\n",
297 full, strerror(errno)));
302 if (!(st.st_mode & S_IXUSR)) {
303 DEBUG(DEBUG_INFO,("Event script %s is not executable. Ignoring this event script\n", full));
313 static struct ctdb_script_list *ctdb_get_script_list(struct ctdb_context *ctdb, TALLOC_CTX *mem_ctx)
319 struct ctdb_script_list *head, *tail, *new_item;
320 TALLOC_CTX *tmp_ctx = talloc_new(ctdb);
321 struct ctdb_script_tree_item *tree_item;
325 the service specific event scripts
327 if (stat(ctdb->event_script_dir, &st) != 0 &&
329 DEBUG(DEBUG_CRIT,("No event script directory found at '%s'\n", ctdb->event_script_dir));
330 talloc_free(tmp_ctx);
334 /* create a tree to store all the script names in */
335 tree = trbt_create(tmp_ctx, 0);
337 /* scan all directory entries and insert all valid scripts into the
340 dir = opendir(ctdb->event_script_dir);
342 DEBUG(DEBUG_CRIT,("Failed to open event script directory '%s'\n", ctdb->event_script_dir));
343 talloc_free(tmp_ctx);
348 while ((de=readdir(dir)) != NULL) {
352 namlen = strlen(de->d_name);
358 if (de->d_name[namlen-1] == '~') {
359 /* skip files emacs left behind */
363 if (de->d_name[2] != '.') {
367 if (sscanf(de->d_name, "%02u.", &num) != 1) {
371 tree_item = talloc(tree, struct ctdb_script_tree_item);
372 if (tree_item == NULL) {
373 DEBUG(DEBUG_ERR, (__location__ " Failed to allocate new tree item\n"));
374 talloc_free(tmp_ctx);
378 tree_item->error = 0;
379 if (!check_executable(ctdb->event_script_dir, de->d_name)) {
380 tree_item->error = errno;
383 tree_item->name = talloc_strdup(tree_item, de->d_name);
384 if (tree_item->name == NULL) {
385 DEBUG(DEBUG_ERR,(__location__ " Failed to allocate script name.\n"));
386 talloc_free(tmp_ctx);
390 /* store the event script in the tree */
391 trbt_insert32(tree, (num<<16)|count++, tree_item);
399 /* fetch the scripts from the tree one by one and add them to the linked
402 while ((tree_item=trbt_findfirstarray32(tree, 1)) != NULL) {
404 new_item = talloc(tmp_ctx, struct ctdb_script_list);
405 if (new_item == NULL) {
406 DEBUG(DEBUG_ERR, (__location__ " Failed to allocate new list item\n"));
407 talloc_free(tmp_ctx);
411 new_item->next = NULL;
412 new_item->name = talloc_steal(new_item, tree_item->name);
413 new_item->error = tree_item->error;
419 tail->next = new_item;
423 talloc_steal(mem_ctx, new_item);
425 /* remove this script from the tree */
426 talloc_free(tree_item);
429 talloc_free(tmp_ctx);
433 static int child_setup(struct ctdb_context *ctdb,
435 enum ctdb_eventscript_call call)
437 if (!from_user && call == CTDB_EVENT_MONITOR) {
438 /* This is running in the forked child process. At this stage
439 * we want to switch from being a ctdb daemon into being a
440 * client and connect to the real local daemon.
442 if (switch_from_server_to_client(ctdb) != 0) {
443 DEBUG(DEBUG_CRIT, (__location__ "ERROR: failed to switch eventscript child into client mode. shutting down.\n"));
447 if (ctdb_ctrl_event_script_init(ctdb) != 0) {
452 if (setpgid(0,0) != 0) {
454 DEBUG(DEBUG_ERR,("Failed to create process group for event scripts - %s\n",
459 signal(SIGTERM, sigterm);
461 child_state.start = timeval_current();
462 child_state.script_running = "startup";
466 static char *child_command_string(struct ctdb_context *ctdb,
469 const char *scriptname,
470 enum ctdb_eventscript_call call,
473 const char *str = from_user ? "CTDB_CALLED_BY_USER=1 " : "";
475 /* Allow a setting where we run the actual monitor event
476 from an external source and replace it with
477 a "status" event that just picks up the actual
478 status of the event asynchronously.
480 if ((ctdb->tunable.use_status_events_for_monitoring != 0)
481 && (call == CTDB_EVENT_MONITOR)
483 return talloc_asprintf(ctx, "%s%s/%s %s",
485 ctdb->event_script_dir,
486 scriptname, "status");
488 return talloc_asprintf(ctx, "%s%s/%s %s %s",
490 ctdb->event_script_dir,
491 scriptname, call_names[call], options);
495 static int child_run_one(struct ctdb_context *ctdb,
496 const char *scriptname, const char *cmdstr)
500 ret = system(cmdstr);
501 /* if the system() call was successful, translate ret into the
502 return code from the command
505 ret = WEXITSTATUS(ret);
510 /* 127 could mean it does not exist, 126 non-executable. */
511 if (ret == 127 || ret == 126) {
513 if (!check_executable(ctdb->event_script_dir, scriptname)) {
514 DEBUG(DEBUG_ERR,("Script %s returned status %u. Someone just deleted it?\n",
523 Actually run the event scripts
524 this function is called and run in the context of a forked child
525 which allows it to do blocking calls such as system()
527 static int child_run_scripts(struct ctdb_context *ctdb,
529 enum ctdb_eventscript_call call,
531 struct ctdb_script_list *scripts)
535 TALLOC_CTX *tmp_ctx = talloc_new(ctdb);
536 struct ctdb_script_list *current;
538 ret = child_setup(ctdb, from_user, call);
542 /* fetch the scripts from the tree one by one and execute
545 for (current=scripts; current; current=current->next) {
546 cmdstr = child_command_string(ctdb, tmp_ctx, from_user,
547 current->name, call, options);
548 CTDB_NO_MEMORY(ctdb, cmdstr);
550 DEBUG(DEBUG_INFO,("Executing event script %s\n",cmdstr));
552 child_state.start = timeval_current();
553 child_state.script_running = cmdstr;
555 if (!from_user && call == CTDB_EVENT_MONITOR) {
556 if (ctdb_ctrl_event_script_start(ctdb, current->name) != 0) {
561 if (current->error) {
562 if (ctdb_ctrl_event_script_stop(ctdb, -current->error) != 0) {
569 if (current->error) {
573 ret = child_run_one(ctdb, current->name, cmdstr);
575 if (!from_user && call == CTDB_EVENT_MONITOR) {
576 if (ctdb_ctrl_event_script_stop(ctdb, ret) != 0) {
582 /* now we've reported the per-script error, don't exit the loop
583 * just because it vanished or was disabled. */
584 if (ret == -ENOENT || ret == -ENOEXEC) {
588 /* return an error if the script failed */
594 child_state.start = timeval_current();
595 child_state.script_running = "finished";
597 if (!from_user && call == CTDB_EVENT_MONITOR) {
598 if (ctdb_ctrl_event_script_finished(ctdb) != 0) {
604 talloc_free(tmp_ctx);
608 /* called when child is finished */
609 static void ctdb_event_script_handler(struct event_context *ev, struct fd_event *fde,
610 uint16_t flags, void *p)
612 struct ctdb_event_script_state *state =
613 talloc_get_type(p, struct ctdb_event_script_state);
614 struct ctdb_context *ctdb = state->ctdb;
617 r = read(state->fd[0], &state->cb_status, sizeof(state->cb_status));
619 state->cb_status = -errno;
620 } else if (r != sizeof(state->cb_status)) {
621 state->cb_status = -EIO;
624 DEBUG(DEBUG_INFO,(__location__ " Eventscript %s %s finished with state %d\n",
625 call_names[state->call], state->options, state->cb_status));
628 ctdb->event_script_timeouts = 0;
632 /* called when child times out */
633 static void ctdb_event_script_timeout(struct event_context *ev, struct timed_event *te,
634 struct timeval t, void *p)
636 struct ctdb_event_script_state *state = talloc_get_type(p, struct ctdb_event_script_state);
637 struct ctdb_context *ctdb = state->ctdb;
639 DEBUG(DEBUG_ERR,("Event script timed out : %s %s count : %u pid : %d\n",
640 call_names[state->call], state->options, ctdb->event_script_timeouts, state->child));
642 state->cb_status = -ETIME;
644 if (kill(state->child, 0) != 0) {
645 DEBUG(DEBUG_ERR,("Event script child process already dead, errno %s(%d)\n", strerror(errno), errno));
649 if (state->call == CTDB_EVENT_MONITOR || state->call == CTDB_EVENT_STATUS) {
650 struct ctdb_monitor_script_status *script;
652 if (ctdb->current_monitor != NULL) {
653 script = ctdb->current_monitor->scripts;
654 if (script != NULL) {
655 script->status = state->cb_status;
658 ctdb_control_event_script_finished(ctdb);
666 destroy an event script: kill it if ->child != 0.
668 static int event_script_destructor(struct ctdb_event_script_state *state)
671 DEBUG(DEBUG_ERR,(__location__ " Sending SIGTERM to child pid:%d\n", state->child));
673 if (kill(state->child, SIGTERM) != 0) {
674 DEBUG(DEBUG_ERR,("Failed to kill child process for eventscript, errno %s(%d)\n", strerror(errno), errno));
678 /* If we were the current monitor, we no longer are. */
679 if (state->ctdb->current_monitor == state) {
680 state->ctdb->current_monitor = NULL;
683 /* This is allowed to free us; talloc will prevent double free anyway,
684 * but beware if you call this outside the destructor! */
685 if (state->callback) {
686 state->callback(state->ctdb, state->cb_status, state->private_data);
692 static unsigned int count_words(const char *options)
694 unsigned int words = 0;
696 options += strspn(options, " \t");
699 options += strcspn(options, " \t");
700 options += strspn(options, " \t");
705 static bool check_options(enum ctdb_eventscript_call call, const char *options)
708 /* These all take no arguments. */
709 case CTDB_EVENT_STARTUP:
710 case CTDB_EVENT_START_RECOVERY:
711 case CTDB_EVENT_RECOVERED:
712 case CTDB_EVENT_STOPPED:
713 case CTDB_EVENT_MONITOR:
714 case CTDB_EVENT_STATUS:
715 case CTDB_EVENT_SHUTDOWN:
716 case CTDB_EVENT_RELOAD:
717 return count_words(options) == 0;
719 case CTDB_EVENT_TAKE_IP: /* interface, IP address, netmask bits. */
720 case CTDB_EVENT_RELEASE_IP:
721 return count_words(options) == 3;
724 DEBUG(DEBUG_ERR,(__location__ "Unknown ctdb_eventscript_call %u\n", call));
730 run the event script in the background, calling the callback when
733 static int ctdb_event_script_callback_v(struct ctdb_context *ctdb,
734 void (*callback)(struct ctdb_context *, int, void *),
737 enum ctdb_eventscript_call call,
738 const char *fmt, va_list ap)
740 struct ctdb_event_script_state *state;
742 struct ctdb_script_list *scripts;
744 state = talloc(ctdb->event_script_ctx, struct ctdb_event_script_state);
745 CTDB_NO_MEMORY(ctdb, state);
748 state->callback = callback;
749 state->private_data = private_data;
751 state->options = talloc_vasprintf(state, fmt, ap);
752 state->timeout = timeval_set(ctdb->tunable.script_timeout, 0);
753 state->scripts = NULL;
754 if (state->options == NULL) {
755 DEBUG(DEBUG_ERR, (__location__ " could not allocate state->options\n"));
759 if (!check_options(state->call, state->options)) {
760 DEBUG(DEBUG_ERR, ("Bad eventscript options '%s' for %s\n",
761 call_names[state->call], state->options));
766 if (ctdb->recovery_mode != CTDB_RECOVERY_NORMAL) {
767 /* we guarantee that only some specifically allowed event scripts are run
769 const enum ctdb_eventscript_call allowed_calls[] = {
770 CTDB_EVENT_START_RECOVERY, CTDB_EVENT_SHUTDOWN, CTDB_EVENT_RELEASE_IP, CTDB_EVENT_STOPPED };
772 for (i=0;i<ARRAY_SIZE(allowed_calls);i++) {
773 if (call == allowed_calls[i]) break;
775 if (i == ARRAY_SIZE(allowed_calls)) {
776 DEBUG(DEBUG_ERR,("Refusing to run event scripts call '%s' while in recovery\n",
783 /* Kill off any running monitor events to run this event. */
784 talloc_free(ctdb->current_monitor);
785 ctdb->current_monitor = NULL;
787 if (!from_user && (call == CTDB_EVENT_MONITOR || call == CTDB_EVENT_STATUS)) {
788 ctdb->current_monitor = state;
791 DEBUG(DEBUG_INFO,(__location__ " Starting eventscript %s %s\n",
792 call_names[state->call], state->options));
794 scripts = ctdb_get_script_list(ctdb, state);
796 ret = pipe(state->fd);
802 state->child = fork();
804 if (state->child == (pid_t)-1) {
811 if (state->child == 0) {
815 set_close_on_exec(state->fd[1]);
817 rt = child_run_scripts(ctdb, from_user, state->call, state->options, scripts);
818 /* We must be able to write PIPEBUF bytes at least; if this
819 somehow fails, the read above will be short. */
820 write(state->fd[1], &rt, sizeof(rt));
826 set_close_on_exec(state->fd[0]);
827 talloc_set_destructor(state, event_script_destructor);
829 DEBUG(DEBUG_DEBUG, (__location__ " Created PIPE FD:%d to child eventscript process\n", state->fd[0]));
831 event_add_fd(ctdb->ev, state, state->fd[0], EVENT_FD_READ|EVENT_FD_AUTOCLOSE,
832 ctdb_event_script_handler, state);
834 if (!timeval_is_zero(&state->timeout)) {
835 event_add_timed(ctdb->ev, state, timeval_current_ofs(state->timeout.tv_sec, state->timeout.tv_usec), ctdb_event_script_timeout, state);
837 DEBUG(DEBUG_ERR, (__location__ " eventscript %s %s called with no timeout\n",
838 call_names[state->call], state->options));
846 run the event script in the background, calling the callback when
849 int ctdb_event_script_callback(struct ctdb_context *ctdb,
851 void (*callback)(struct ctdb_context *, int, void *),
854 enum ctdb_eventscript_call call,
855 const char *fmt, ...)
861 ret = ctdb_event_script_callback_v(ctdb, callback, private_data, from_user, call, fmt, ap);
868 struct callback_status {
874 called when ctdb_event_script() finishes
876 static void event_script_callback(struct ctdb_context *ctdb, int status, void *private_data)
878 struct callback_status *s = (struct callback_status *)private_data;
884 run the event script, waiting for it to complete. Used when the caller
885 doesn't want to continue till the event script has finished.
887 int ctdb_event_script_args(struct ctdb_context *ctdb, enum ctdb_eventscript_call call,
888 const char *fmt, ...)
892 struct callback_status status;
895 ret = ctdb_event_script_callback_v(ctdb,
896 event_script_callback, &status, false, call, fmt, ap);
905 while (status.done == false && event_loop_once(ctdb->ev) == 0) /* noop */;
907 if (status.status == -ETIME) {
908 DEBUG(DEBUG_ERR, (__location__ " eventscript for '%s' timedout."
909 " Immediately banning ourself for %d seconds\n",
911 ctdb->tunable.recovery_ban_period));
915 return status.status;
918 int ctdb_event_script(struct ctdb_context *ctdb, enum ctdb_eventscript_call call)
920 /* GCC complains about empty format string, so use %s and "". */
921 return ctdb_event_script_args(ctdb, call, "%s", "");
924 struct eventscript_callback_state {
925 struct ctdb_req_control *c;
929 called when a forced eventscript run has finished
931 static void run_eventscripts_callback(struct ctdb_context *ctdb, int status,
934 struct eventscript_callback_state *state =
935 talloc_get_type(private_data, struct eventscript_callback_state);
937 ctdb_enable_monitoring(ctdb);
940 DEBUG(DEBUG_ERR,(__location__ " Failed to forcibly run eventscripts\n"));
943 ctdb_request_control_reply(ctdb, state->c, NULL, status, NULL);
944 /* This will free the struct ctdb_event_script_state we are in! */
950 /* Returns rest of string, or NULL if no match. */
951 static const char *get_call(const char *p, enum ctdb_eventscript_call *call)
955 /* Skip any initial whitespace. */
956 p += strspn(p, " \t");
958 /* See if we match any. */
959 for (*call = 0; *call < ARRAY_SIZE(call_names); (*call)++) {
960 len = strlen(call_names[*call]);
961 if (strncmp(p, call_names[*call], len) == 0) {
962 /* If end of string or whitespace, we're done. */
963 if (strcspn(p + len, " \t") == 0) {
972 A control to force running of the eventscripts from the ctdb client tool
974 int32_t ctdb_run_eventscripts(struct ctdb_context *ctdb,
975 struct ctdb_req_control *c,
976 TDB_DATA indata, bool *async_reply)
979 struct eventscript_callback_state *state;
981 enum ctdb_eventscript_call call;
983 /* Figure out what call they want. */
984 options = get_call((const char *)indata.dptr, &call);
986 DEBUG(DEBUG_ERR, (__location__ " Invalid forced \"%s\"\n", (const char *)indata.dptr));
990 if (ctdb->recovery_mode != CTDB_RECOVERY_NORMAL) {
991 DEBUG(DEBUG_ERR, (__location__ " Aborted running eventscript \"%s\" while in RECOVERY mode\n", indata.dptr));
995 state = talloc(ctdb->event_script_ctx, struct eventscript_callback_state);
996 CTDB_NO_MEMORY(ctdb, state);
998 state->c = talloc_steal(state, c);
1000 DEBUG(DEBUG_NOTICE,("Forced running of eventscripts with arguments %s\n", indata.dptr));
1002 ctdb_disable_monitoring(ctdb);
1004 ret = ctdb_event_script_callback(ctdb,
1005 state, run_eventscripts_callback, state,
1006 true, call, "%s", options);
1009 ctdb_enable_monitoring(ctdb);
1010 DEBUG(DEBUG_ERR,(__location__ " Failed to run eventscripts with arguments %s\n", indata.dptr));
1015 /* tell ctdb_control.c that we will be replying asynchronously */
1016 *async_reply = true;
1023 int32_t ctdb_control_enable_script(struct ctdb_context *ctdb, TDB_DATA indata)
1028 TALLOC_CTX *tmp_ctx = talloc_new(ctdb);
1030 script = (char *)indata.dptr;
1031 if (indata.dsize == 0) {
1032 DEBUG(DEBUG_ERR,(__location__ " No script specified.\n"));
1033 talloc_free(tmp_ctx);
1036 if (indata.dptr[indata.dsize - 1] != '\0') {
1037 DEBUG(DEBUG_ERR,(__location__ " String is not null terminated.\n"));
1038 talloc_free(tmp_ctx);
1041 if (index(script,'/') != NULL) {
1042 DEBUG(DEBUG_ERR,(__location__ " Script name contains '/'. Failed to enable script %s\n", script));
1043 talloc_free(tmp_ctx);
1048 if (stat(ctdb->event_script_dir, &st) != 0 &&
1050 DEBUG(DEBUG_CRIT,("No event script directory found at '%s'\n", ctdb->event_script_dir));
1051 talloc_free(tmp_ctx);
1056 filename = talloc_asprintf(tmp_ctx, "%s/%s", ctdb->event_script_dir, script);
1057 if (filename == NULL) {
1058 DEBUG(DEBUG_ERR,(__location__ " Failed to create script path\n"));
1059 talloc_free(tmp_ctx);
1063 if (stat(filename, &st) != 0) {
1064 DEBUG(DEBUG_ERR,("Could not stat event script %s. Failed to enable script.\n", filename));
1065 talloc_free(tmp_ctx);
1069 if (chmod(filename, st.st_mode | S_IXUSR) == -1) {
1070 DEBUG(DEBUG_ERR,("Could not chmod %s. Failed to enable script.\n", filename));
1071 talloc_free(tmp_ctx);
1075 talloc_free(tmp_ctx);
1079 int32_t ctdb_control_disable_script(struct ctdb_context *ctdb, TDB_DATA indata)
1084 TALLOC_CTX *tmp_ctx = talloc_new(ctdb);
1086 script = (char *)indata.dptr;
1087 if (indata.dsize == 0) {
1088 DEBUG(DEBUG_ERR,(__location__ " No script specified.\n"));
1089 talloc_free(tmp_ctx);
1092 if (indata.dptr[indata.dsize - 1] != '\0') {
1093 DEBUG(DEBUG_ERR,(__location__ " String is not null terminated.\n"));
1094 talloc_free(tmp_ctx);
1097 if (index(script,'/') != NULL) {
1098 DEBUG(DEBUG_ERR,(__location__ " Script name contains '/'. Failed to disable script %s\n", script));
1099 talloc_free(tmp_ctx);
1104 if (stat(ctdb->event_script_dir, &st) != 0 &&
1106 DEBUG(DEBUG_CRIT,("No event script directory found at '%s'\n", ctdb->event_script_dir));
1107 talloc_free(tmp_ctx);
1112 filename = talloc_asprintf(tmp_ctx, "%s/%s", ctdb->event_script_dir, script);
1113 if (filename == NULL) {
1114 DEBUG(DEBUG_ERR,(__location__ " Failed to create script path\n"));
1115 talloc_free(tmp_ctx);
1119 if (stat(filename, &st) != 0) {
1120 DEBUG(DEBUG_ERR,("Could not stat event script %s. Failed to disable script.\n", filename));
1121 talloc_free(tmp_ctx);
1125 if (chmod(filename, st.st_mode & ~(S_IXUSR|S_IXGRP|S_IXOTH)) == -1) {
1126 DEBUG(DEBUG_ERR,("Could not chmod %s. Failed to disable script.\n", filename));
1127 talloc_free(tmp_ctx);
1131 talloc_free(tmp_ctx);