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 "../common/rb_tree.h"
28 #include "lib/util/dlinklist.h"
30 static void ctdb_event_script_timeout(struct event_context *ev, struct timed_event *te, struct timeval t, void *p);
32 /* This is attached to the event script state. */
33 struct event_script_callback {
34 struct event_script_callback *next, *prev;
35 struct ctdb_context *ctdb;
37 /* Warning: this can free us! */
38 void (*fn)(struct ctdb_context *, int, void *);
43 struct ctdb_event_script_state {
44 struct ctdb_context *ctdb;
45 struct event_script_callback *callback;
48 enum ctdb_eventscript_call call;
50 struct timeval timeout;
53 struct ctdb_scripts_wire *scripts;
56 static struct ctdb_script_wire *get_current_script(struct ctdb_event_script_state *state)
58 return &state->scripts->scripts[state->current];
61 /* called from ctdb_logging when we have received output on STDERR from
62 * one of the eventscripts
64 static void log_event_script_output(const char *str, uint16_t len, void *p)
66 struct ctdb_event_script_state *state
67 = talloc_get_type(p, struct ctdb_event_script_state);
68 struct ctdb_script_wire *current;
69 unsigned int slen, min;
71 /* We may have been aborted to run something else. Discard */
72 if (state->scripts == NULL) {
76 current = get_current_script(state);
78 /* Append, but don't overfill buffer. It starts zero-filled. */
79 slen = strlen(current->output);
80 min = MIN(len, sizeof(current->output) - slen - 1);
82 memcpy(current->output + slen, str, min);
85 int32_t ctdb_control_get_event_script_status(struct ctdb_context *ctdb,
89 if (call_type >= CTDB_EVENT_MAX) {
93 if (ctdb->last_status[call_type] == NULL) {
94 /* If it's never been run, return nothing so they can tell. */
97 outdata->dsize = talloc_get_size(ctdb->last_status[call_type]);
98 outdata->dptr = (uint8_t *)ctdb->last_status[call_type];
103 /* To ignore directory entry return 0, else return non-zero */
104 static int script_filter(const struct dirent *de)
106 int namelen = strlen(de->d_name);
108 /* Ignore . and .. */
113 /* Skip temporary files left behind by emacs */
114 if (de->d_name[namelen-1] == '~') {
118 /* Filename should start with [0-9][0-9]. */
119 if (!isdigit(de->d_name[0]) || !isdigit(de->d_name[1]) ||
120 de->d_name[2] != '.') {
124 if (namelen > MAX_SCRIPT_NAME) {
131 /* Return true if OK, otherwise set errno. */
132 static bool check_executable(const char *dir, const char *name)
137 full = talloc_asprintf(NULL, "%s/%s", dir, name);
141 if (stat(full, &st) != 0) {
142 DEBUG(DEBUG_ERR,("Could not stat event script %s: %s\n",
143 full, strerror(errno)));
148 if (!(st.st_mode & S_IXUSR)) {
149 DEBUG(DEBUG_DEBUG,("Event script %s is not executable. Ignoring this event script\n", full));
159 static struct ctdb_scripts_wire *ctdb_get_script_list(struct ctdb_context *ctdb, TALLOC_CTX *mem_ctx)
161 struct dirent **namelist;
162 struct ctdb_scripts_wire *scripts;
165 /* scan all directory entries and insert all valid scripts into the
168 count = scandir(ctdb->event_script_dir, &namelist, script_filter, alphasort);
170 DEBUG(DEBUG_CRIT, ("Failed to read event script directory '%s' - %s\n",
171 ctdb->event_script_dir, strerror(errno)));
175 /* Overallocates by one, but that's OK */
176 scripts = talloc_zero_size(mem_ctx,
178 + sizeof(scripts->scripts[0]) * count);
179 if (scripts == NULL) {
180 DEBUG(DEBUG_ERR, (__location__ " Failed to allocate scripts\n"));
184 scripts->num_scripts = count;
186 for (count = 0; count < scripts->num_scripts; count++) {
187 strcpy(scripts->scripts[count].name, namelist[count]->d_name);
188 scripts->scripts[count].status = 0;
189 if (!check_executable(ctdb->event_script_dir, namelist[count]->d_name)) {
190 scripts->scripts[count].status = -errno;
199 /* There cannot be more than 10 arguments to command helper. */
200 #define MAX_HELPER_ARGS (10)
202 static bool child_helper_args(TALLOC_CTX *mem_ctx, struct ctdb_context *ctdb,
203 enum ctdb_eventscript_call call,
205 struct ctdb_script_wire *current, int fd,
206 int *argc, const char ***argv)
210 char *t, *saveptr, *opt;
212 tmp = talloc_array(mem_ctx, const char *, 10+1);
213 if (tmp == NULL) goto failed;
215 tmp[0] = talloc_asprintf(tmp, "%d", fd);
216 tmp[1] = talloc_asprintf(tmp, "%s/%s", ctdb->event_script_dir, current->name);
217 tmp[2] = talloc_asprintf(tmp, "%s", ctdb_eventscript_call_names[call]);
220 /* Split options into individual arguments */
221 opt = talloc_strdup(mem_ctx, options);
226 t = strtok_r(opt, " ", &saveptr);
228 tmp[n++] = talloc_strdup(tmp, t);
229 if (n > MAX_HELPER_ARGS) {
232 t = strtok_r(NULL, " ", &saveptr);
235 for (i=0; i<n; i++) {
236 if (tmp[i] == NULL) {
241 /* Last argument should be NULL */
250 DEBUG(DEBUG_ERR, (__location__ " too many arguments '%s' to eventscript '%s'\n",
251 options, ctdb_eventscript_call_names[call]));
261 static void ctdb_event_script_handler(struct event_context *ev, struct fd_event *fde,
262 uint16_t flags, void *p);
264 static const char *helper_prog = NULL;
266 static int fork_child_for_script(struct ctdb_context *ctdb,
267 struct ctdb_event_script_state *state)
270 struct tevent_fd *fde;
271 struct ctdb_script_wire *current = get_current_script(state);
274 static const char *helper = CTDB_HELPER_BINDIR "/ctdb_event_helper";
276 if (helper_prog == NULL) {
277 const char *t = getenv("CTDB_EVENT_HELPER");
281 helper_prog = helper;
285 current->start = timeval_current();
289 DEBUG(DEBUG_ERR, (__location__ " pipe failed for child eventscript process\n"));
293 /* Arguments for helper */
294 if (!child_helper_args(state, ctdb, state->call, state->options, current,
295 state->fd[1], &argc, &argv)) {
296 DEBUG(DEBUG_ERR, (__location__ " failed to create arguments for eventscript helper\n"));
303 if (!ctdb_vfork_with_logging(state, ctdb, current->name,
304 helper_prog, argc, argv,
305 log_event_script_output,
306 state, &state->child)) {
317 set_close_on_exec(state->fd[0]);
319 /* Set ourselves up to be called when that's done. */
320 fde = event_add_fd(ctdb->ev, state, state->fd[0], EVENT_FD_READ,
321 ctdb_event_script_handler, state);
322 tevent_fd_set_auto_close(fde);
328 Summarize status of this run of scripts.
330 static int script_status(struct ctdb_scripts_wire *scripts)
334 for (i = 0; i < scripts->num_scripts; i++) {
335 switch (scripts->scripts[i].status) {
338 /* Disabled or missing; that's OK. */
344 return scripts->scripts[i].status;
352 /* called when child is finished */
353 static void ctdb_event_script_handler(struct event_context *ev, struct fd_event *fde,
354 uint16_t flags, void *p)
356 struct ctdb_event_script_state *state =
357 talloc_get_type(p, struct ctdb_event_script_state);
358 struct ctdb_script_wire *current = get_current_script(state);
359 struct ctdb_context *ctdb = state->ctdb;
363 DEBUG(DEBUG_ERR,("Eventscript finished but ctdb is NULL\n"));
367 r = sys_read(state->fd[0], ¤t->status, sizeof(current->status));
369 current->status = -errno;
371 current->status = -EINTR;
372 } else if (r != sizeof(current->status)) {
373 current->status = -EIO;
376 current->finished = timeval_current();
377 /* valgrind gets overloaded if we run next script as it's still doing
378 * post-execution analysis, so kill finished child here. */
379 if (ctdb->valgrinding) {
380 ctdb_kill(ctdb, state->child, SIGKILL);
385 status = script_status(state->scripts);
387 /* Aborted or finished all scripts? We're done. */
388 if (status != 0 || state->current+1 == state->scripts->num_scripts) {
391 ("Eventscript %s %s finished with state %d\n",
392 ctdb_eventscript_call_names[state->call],
393 state->options, status));
396 ctdb->event_script_timeouts = 0;
401 /* Forget about that old fd. */
407 current->status = fork_child_for_script(ctdb, state);
408 if (current->status != 0) {
409 /* This calls the callback. */
414 struct debug_hung_script_state {
415 struct ctdb_context *ctdb;
417 enum ctdb_eventscript_call call;
420 static int debug_hung_script_state_destructor(struct debug_hung_script_state *state)
423 ctdb_kill(state->ctdb, state->child, SIGKILL);
428 static void debug_hung_script_timeout(struct tevent_context *ev, struct tevent_timer *te,
429 struct timeval t, void *p)
431 struct debug_hung_script_state *state =
432 talloc_get_type(p, struct debug_hung_script_state);
437 static void debug_hung_script_done(struct tevent_context *ev, struct tevent_fd *fde,
438 uint16_t flags, void *p)
440 struct debug_hung_script_state *state =
441 talloc_get_type(p, struct debug_hung_script_state);
446 static void ctdb_run_debug_hung_script(struct ctdb_context *ctdb, struct debug_hung_script_state *state)
449 const char * debug_hung_script = CTDB_ETCDIR "/debug-hung-script.sh";
451 struct tevent_timer *ttimer;
452 struct tevent_fd *tfd;
456 if (helper_prog == NULL) {
461 DEBUG(DEBUG_ERR,("Failed to create pipe fd for debug hung script\n"));
465 if (getenv("CTDB_DEBUG_HUNG_SCRIPT") != NULL) {
466 debug_hung_script = getenv("CTDB_DEBUG_HUNG_SCRIPT");
469 argv = talloc_array(state, const char *, 5);
471 argv[0] = talloc_asprintf(argv, "%d", fd[1]);
472 argv[1] = talloc_strdup(argv, debug_hung_script);
473 argv[2] = talloc_asprintf(argv, "%d", state->child);
474 argv[3] = talloc_strdup(argv, ctdb_eventscript_call_names[state->call]);
477 for (i=0; i<4; i++) {
478 if (argv[i] == NULL) {
487 if (!ctdb_vfork_with_logging(state, ctdb, "Hung-script",
488 helper_prog, 5, argv, NULL, NULL, &pid)) {
489 DEBUG(DEBUG_ERR,("Failed to fork a child to track hung event script\n"));
499 ttimer = tevent_add_timer(ctdb->ev, state,
500 timeval_current_ofs(ctdb->tunable.script_timeout, 0),
501 debug_hung_script_timeout, state);
502 if (ttimer == NULL) {
507 tfd = tevent_add_fd(ctdb->ev, state, fd[0], EVENT_FD_READ,
508 debug_hung_script_done, state);
514 tevent_fd_set_auto_close(tfd);
517 /* called when child times out */
518 static void ctdb_event_script_timeout(struct event_context *ev, struct timed_event *te,
519 struct timeval t, void *p)
521 struct ctdb_event_script_state *state = talloc_get_type(p, struct ctdb_event_script_state);
522 struct ctdb_context *ctdb = state->ctdb;
523 struct ctdb_script_wire *current = get_current_script(state);
524 struct debug_hung_script_state *debug_state;
526 DEBUG(DEBUG_ERR,("Event script '%s %s %s' timed out after %.1fs, count: %u, pid: %d\n",
527 current->name, ctdb_eventscript_call_names[state->call], state->options,
528 timeval_elapsed(¤t->start),
529 ctdb->event_script_timeouts, state->child));
531 /* ignore timeouts for these events */
532 switch (state->call) {
533 case CTDB_EVENT_START_RECOVERY:
534 case CTDB_EVENT_RECOVERED:
535 case CTDB_EVENT_TAKE_IP:
536 case CTDB_EVENT_RELEASE_IP:
537 state->scripts->scripts[state->current].status = 0;
538 DEBUG(DEBUG_ERR,("Ignoring hung script for %s call %d\n", state->options, state->call));
541 state->scripts->scripts[state->current].status = -ETIME;
544 debug_state = talloc_zero(ctdb, struct debug_hung_script_state);
545 if (debug_state == NULL) {
550 /* Save information useful for running debug hung script, so
551 * eventscript state can be freed.
553 debug_state->ctdb = ctdb;
554 debug_state->child = state->child;
555 debug_state->call = state->call;
557 /* This destructor will actually kill the hung event script */
558 talloc_set_destructor(debug_state, debug_hung_script_state_destructor);
563 ctdb_run_debug_hung_script(ctdb, debug_state);
567 destroy an event script: kill it if ->child != 0.
569 static int event_script_destructor(struct ctdb_event_script_state *state)
572 struct event_script_callback *callback;
575 DEBUG(DEBUG_ERR,(__location__ " Sending SIGTERM to child pid:%d\n", state->child));
577 if (ctdb_kill(state->ctdb, state->child, SIGTERM) != 0) {
578 DEBUG(DEBUG_ERR,("Failed to kill child process for eventscript, errno %s(%d)\n", strerror(errno), errno));
582 /* If we were the current monitor, we no longer are. */
583 if (state->ctdb->current_monitor == state) {
584 state->ctdb->current_monitor = NULL;
587 /* Save our scripts as the last executed status, if we have them.
588 * See ctdb_event_script_callback_v where we abort monitor event. */
589 if (state->scripts) {
590 talloc_free(state->ctdb->last_status[state->call]);
591 state->ctdb->last_status[state->call] = state->scripts;
592 if (state->current < state->ctdb->last_status[state->call]->num_scripts) {
593 state->ctdb->last_status[state->call]->num_scripts = state->current+1;
597 /* Use last status as result, or "OK" if none. */
598 if (state->ctdb->last_status[state->call]) {
599 status = script_status(state->ctdb->last_status[state->call]);
604 state->ctdb->active_events--;
605 if (state->ctdb->active_events < 0) {
606 ctdb_fatal(state->ctdb, "Active events < 0");
609 /* This is allowed to free us; talloc will prevent double free anyway,
610 * but beware if you call this outside the destructor!
611 * the callback hangs off a different context so we walk the list
612 * of "active" callbacks until we find the one state points to.
613 * if we cant find it it means the callback has been removed.
615 for (callback = state->ctdb->script_callbacks; callback != NULL; callback = callback->next) {
616 if (callback == state->callback) {
621 state->callback = NULL;
624 /* Make sure destructor doesn't free itself! */
625 talloc_steal(NULL, callback);
626 callback->fn(state->ctdb, status, callback->private_data);
627 talloc_free(callback);
633 static unsigned int count_words(const char *options)
635 unsigned int words = 0;
637 options += strspn(options, " \t");
640 options += strcspn(options, " \t");
641 options += strspn(options, " \t");
646 static bool check_options(enum ctdb_eventscript_call call, const char *options)
649 /* These all take no arguments. */
650 case CTDB_EVENT_INIT:
651 case CTDB_EVENT_SETUP:
652 case CTDB_EVENT_STARTUP:
653 case CTDB_EVENT_START_RECOVERY:
654 case CTDB_EVENT_RECOVERED:
655 case CTDB_EVENT_MONITOR:
656 case CTDB_EVENT_SHUTDOWN:
657 case CTDB_EVENT_IPREALLOCATED:
658 return count_words(options) == 0;
660 case CTDB_EVENT_TAKE_IP: /* interface, IP address, netmask bits. */
661 case CTDB_EVENT_RELEASE_IP:
662 return count_words(options) == 3;
664 case CTDB_EVENT_UPDATE_IP: /* old interface, new interface, IP address, netmask bits. */
665 return count_words(options) == 4;
668 DEBUG(DEBUG_ERR,(__location__ "Unknown ctdb_eventscript_call %u\n", call));
673 static int remove_callback(struct event_script_callback *callback)
675 DLIST_REMOVE(callback->ctdb->script_callbacks, callback);
680 run the event script in the background, calling the callback when
683 static int ctdb_event_script_callback_v(struct ctdb_context *ctdb,
685 void (*callback)(struct ctdb_context *, int, void *),
687 enum ctdb_eventscript_call call,
688 const char *fmt, va_list ap)
690 struct ctdb_event_script_state *state;
692 if (ctdb->recovery_mode != CTDB_RECOVERY_NORMAL) {
693 /* we guarantee that only some specifically allowed event scripts are run
695 const enum ctdb_eventscript_call allowed_calls[] = {
698 CTDB_EVENT_START_RECOVERY,
700 CTDB_EVENT_RELEASE_IP,
701 CTDB_EVENT_IPREALLOCATED,
704 for (i=0;i<ARRAY_SIZE(allowed_calls);i++) {
705 if (call == allowed_calls[i]) break;
707 if (i == ARRAY_SIZE(allowed_calls)) {
708 DEBUG(DEBUG_ERR,("Refusing to run event scripts call '%s' while in recovery\n",
709 ctdb_eventscript_call_names[call]));
714 /* Do not run new monitor events if some event is already running */
715 if (call == CTDB_EVENT_MONITOR && ctdb->active_events > 0) {
716 if (callback != NULL) {
717 callback(ctdb, -ECANCELED, private_data);
722 /* Kill off any running monitor events to run this event. */
723 if (ctdb->current_monitor) {
724 struct ctdb_event_script_state *ms = talloc_get_type(ctdb->current_monitor, struct ctdb_event_script_state);
726 /* Cancel current monitor callback state only if monitoring
727 * context ctdb->monitor->monitor_context has not been freed */
728 if (ms->callback != NULL && !ctdb_stopped_monitoring(ctdb)) {
729 ms->callback->fn(ctdb, -ECANCELED, ms->callback->private_data);
730 talloc_free(ms->callback);
733 /* Discard script status so we don't save to last_status */
734 talloc_free(ctdb->current_monitor->scripts);
735 ctdb->current_monitor->scripts = NULL;
736 talloc_free(ctdb->current_monitor);
737 ctdb->current_monitor = NULL;
740 state = talloc(ctdb->event_script_ctx, struct ctdb_event_script_state);
741 CTDB_NO_MEMORY(ctdb, state);
743 /* The callback isn't done if the context is freed. */
744 state->callback = talloc(mem_ctx, struct event_script_callback);
745 CTDB_NO_MEMORY(ctdb, state->callback);
746 DLIST_ADD(ctdb->script_callbacks, state->callback);
747 talloc_set_destructor(state->callback, remove_callback);
748 state->callback->ctdb = ctdb;
749 state->callback->fn = callback;
750 state->callback->private_data = private_data;
754 state->options = talloc_vasprintf(state, fmt, ap);
755 state->timeout = timeval_set(ctdb->tunable.script_timeout, 0);
756 state->scripts = NULL;
757 if (state->options == NULL) {
758 DEBUG(DEBUG_ERR, (__location__ " could not allocate state->options\n"));
762 if (!check_options(state->call, state->options)) {
763 DEBUG(DEBUG_ERR, ("Bad eventscript options '%s' for '%s'\n",
765 ctdb_eventscript_call_names[state->call]));
770 DEBUG(DEBUG_INFO,(__location__ " Starting eventscript %s %s\n",
771 ctdb_eventscript_call_names[state->call],
774 /* This is not a child of state, since we save it in destructor. */
775 state->scripts = ctdb_get_script_list(ctdb, ctdb);
776 if (state->scripts == NULL) {
783 if (call == CTDB_EVENT_MONITOR) {
784 ctdb->current_monitor = state;
787 talloc_set_destructor(state, event_script_destructor);
789 ctdb->active_events++;
792 if (state->scripts->num_scripts == 0) {
797 state->scripts->scripts[0].status = fork_child_for_script(ctdb, state);
798 if (state->scripts->scripts[0].status != 0) {
799 /* Callback is called from destructor, with fail result. */
804 if (!timeval_is_zero(&state->timeout)) {
805 event_add_timed(ctdb->ev, state, timeval_current_ofs(state->timeout.tv_sec, state->timeout.tv_usec), ctdb_event_script_timeout, state);
807 DEBUG(DEBUG_ERR, (__location__ " eventscript %s %s called with no timeout\n",
808 ctdb_eventscript_call_names[state->call],
817 run the event script in the background, calling the callback when
818 finished. If mem_ctx is freed, callback will never be called.
820 int ctdb_event_script_callback(struct ctdb_context *ctdb,
822 void (*callback)(struct ctdb_context *, int, void *),
824 enum ctdb_eventscript_call call,
825 const char *fmt, ...)
831 ret = ctdb_event_script_callback_v(ctdb, mem_ctx, callback, private_data, call, fmt, ap);
838 struct callback_status {
844 called when ctdb_event_script() finishes
846 static void event_script_callback(struct ctdb_context *ctdb, int status, void *private_data)
848 struct callback_status *s = (struct callback_status *)private_data;
854 run the event script, waiting for it to complete. Used when the caller
855 doesn't want to continue till the event script has finished.
857 int ctdb_event_script_args(struct ctdb_context *ctdb, enum ctdb_eventscript_call call,
858 const char *fmt, ...)
862 struct callback_status status;
865 ret = ctdb_event_script_callback_v(ctdb, ctdb,
866 event_script_callback, &status, call, fmt, ap);
875 while (status.done == false && event_loop_once(ctdb->ev) == 0) /* noop */;
877 if (status.status == -ETIME) {
878 DEBUG(DEBUG_ERR, (__location__ " eventscript for '%s' timedout."
879 " Immediately banning ourself for %d seconds\n",
880 ctdb_eventscript_call_names[call],
881 ctdb->tunable.recovery_ban_period));
883 /* Don't ban self if CTDB is starting up or shutting down */
884 if (call != CTDB_EVENT_INIT && call != CTDB_EVENT_SHUTDOWN) {
889 return status.status;
892 int ctdb_event_script(struct ctdb_context *ctdb, enum ctdb_eventscript_call call)
894 /* GCC complains about empty format string, so use %s and "". */
895 return ctdb_event_script_args(ctdb, call, "%s", "");
898 struct eventscript_callback_state {
899 struct ctdb_req_control *c;
903 called when a forced eventscript run has finished
905 static void run_eventscripts_callback(struct ctdb_context *ctdb, int status,
908 struct eventscript_callback_state *state =
909 talloc_get_type(private_data, struct eventscript_callback_state);
912 DEBUG(DEBUG_ERR,(__location__ " Failed to run eventscripts\n"));
915 ctdb_request_control_reply(ctdb, state->c, NULL, status, NULL);
916 /* This will free the struct ctdb_event_script_state we are in! */
922 /* Returns rest of string, or NULL if no match. */
923 static const char *get_call(const char *p, enum ctdb_eventscript_call *call)
927 /* Skip any initial whitespace. */
928 p += strspn(p, " \t");
930 /* See if we match any. */
931 for (*call = 0; *call < CTDB_EVENT_MAX; (*call)++) {
932 len = strlen(ctdb_eventscript_call_names[*call]);
933 if (strncmp(p, ctdb_eventscript_call_names[*call], len) == 0) {
934 /* If end of string or whitespace, we're done. */
935 if (strcspn(p + len, " \t") == 0) {
944 A control to force running of the eventscripts from the ctdb client tool
946 int32_t ctdb_run_eventscripts(struct ctdb_context *ctdb,
947 struct ctdb_req_control *c,
948 TDB_DATA indata, bool *async_reply)
951 struct eventscript_callback_state *state;
953 enum ctdb_eventscript_call call;
955 /* Figure out what call they want. */
956 options = get_call((const char *)indata.dptr, &call);
958 DEBUG(DEBUG_ERR, (__location__ " Invalid event name \"%s\"\n", (const char *)indata.dptr));
962 if (ctdb->recovery_mode != CTDB_RECOVERY_NORMAL) {
963 DEBUG(DEBUG_ERR, (__location__ " Aborted running eventscript \"%s\" while in RECOVERY mode\n", indata.dptr));
967 state = talloc(ctdb->event_script_ctx, struct eventscript_callback_state);
968 CTDB_NO_MEMORY(ctdb, state);
970 state->c = talloc_steal(state, c);
972 DEBUG(DEBUG_NOTICE,("Running eventscripts with arguments %s\n", indata.dptr));
974 ret = ctdb_event_script_callback(ctdb,
975 state, run_eventscripts_callback, state,
976 call, "%s", options);
979 DEBUG(DEBUG_ERR,(__location__ " Failed to run eventscripts with arguments %s\n", indata.dptr));
984 /* tell ctdb_control.c that we will be replying asynchronously */
992 int32_t ctdb_control_enable_script(struct ctdb_context *ctdb, TDB_DATA indata)
997 TALLOC_CTX *tmp_ctx = talloc_new(ctdb);
999 script = (char *)indata.dptr;
1000 if (indata.dsize == 0) {
1001 DEBUG(DEBUG_ERR,(__location__ " No script specified.\n"));
1002 talloc_free(tmp_ctx);
1005 if (indata.dptr[indata.dsize - 1] != '\0') {
1006 DEBUG(DEBUG_ERR,(__location__ " String is not null terminated.\n"));
1007 talloc_free(tmp_ctx);
1010 if (index(script,'/') != NULL) {
1011 DEBUG(DEBUG_ERR,(__location__ " Script name contains '/'. Failed to enable script %s\n", script));
1012 talloc_free(tmp_ctx);
1017 if (stat(ctdb->event_script_dir, &st) != 0 &&
1019 DEBUG(DEBUG_CRIT,("No event script directory found at '%s'\n", ctdb->event_script_dir));
1020 talloc_free(tmp_ctx);
1025 filename = talloc_asprintf(tmp_ctx, "%s/%s", ctdb->event_script_dir, script);
1026 if (filename == NULL) {
1027 DEBUG(DEBUG_ERR,(__location__ " Failed to create script path\n"));
1028 talloc_free(tmp_ctx);
1032 if (stat(filename, &st) != 0) {
1033 DEBUG(DEBUG_ERR,("Could not stat event script %s. Failed to enable script.\n", filename));
1034 talloc_free(tmp_ctx);
1038 if (chmod(filename, st.st_mode | S_IXUSR) == -1) {
1039 DEBUG(DEBUG_ERR,("Could not chmod %s. Failed to enable script.\n", filename));
1040 talloc_free(tmp_ctx);
1044 talloc_free(tmp_ctx);
1048 int32_t ctdb_control_disable_script(struct ctdb_context *ctdb, TDB_DATA indata)
1053 TALLOC_CTX *tmp_ctx = talloc_new(ctdb);
1055 script = (char *)indata.dptr;
1056 if (indata.dsize == 0) {
1057 DEBUG(DEBUG_ERR,(__location__ " No script specified.\n"));
1058 talloc_free(tmp_ctx);
1061 if (indata.dptr[indata.dsize - 1] != '\0') {
1062 DEBUG(DEBUG_ERR,(__location__ " String is not null terminated.\n"));
1063 talloc_free(tmp_ctx);
1066 if (index(script,'/') != NULL) {
1067 DEBUG(DEBUG_ERR,(__location__ " Script name contains '/'. Failed to disable script %s\n", script));
1068 talloc_free(tmp_ctx);
1073 if (stat(ctdb->event_script_dir, &st) != 0 &&
1075 DEBUG(DEBUG_CRIT,("No event script directory found at '%s'\n", ctdb->event_script_dir));
1076 talloc_free(tmp_ctx);
1081 filename = talloc_asprintf(tmp_ctx, "%s/%s", ctdb->event_script_dir, script);
1082 if (filename == NULL) {
1083 DEBUG(DEBUG_ERR,(__location__ " Failed to create script path\n"));
1084 talloc_free(tmp_ctx);
1088 if (stat(filename, &st) != 0) {
1089 DEBUG(DEBUG_ERR,("Could not stat event script %s. Failed to disable script.\n", filename));
1090 talloc_free(tmp_ctx);
1094 if (chmod(filename, st.st_mode & ~(S_IXUSR|S_IXGRP|S_IXOTH)) == -1) {
1095 DEBUG(DEBUG_ERR,("Could not chmod %s. Failed to disable script.\n", filename));
1096 talloc_free(tmp_ctx);
1100 talloc_free(tmp_ctx);