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/>.
21 #include "system/filesys.h"
22 #include "system/network.h"
23 #include "system/wait.h"
24 #include "system/dir.h"
25 #include "system/locale.h"
26 #include "system/time.h"
31 #include "lib/util/dlinklist.h"
32 #include "lib/util/debug.h"
33 #include "lib/util/samba_util.h"
35 #include "ctdb_private.h"
36 #include "ctdb_logging.h"
38 #include "common/rb_tree.h"
39 #include "common/system.h"
40 #include "common/common.h"
43 static void ctdb_event_script_timeout(struct tevent_context *ev,
44 struct tevent_timer *te,
45 struct timeval t, void *p);
47 /* This is attached to the event script state. */
48 struct event_script_callback {
49 struct event_script_callback *next, *prev;
50 struct ctdb_context *ctdb;
52 /* Warning: this can free us! */
53 void (*fn)(struct ctdb_context *, int, void *);
57 struct ctdb_event_script_state {
58 struct ctdb_context *ctdb;
59 struct event_script_callback *callback;
64 struct timeval timeout;
67 struct ctdb_script_list_old *scripts;
70 static struct ctdb_script *get_current_script(struct ctdb_event_script_state *state)
72 return &state->scripts->scripts[state->current];
75 /* called from ctdb_logging when we have received output on STDERR from
76 * one of the eventscripts
78 static void log_event_script_output(const char *str, uint16_t len, void *p)
80 struct ctdb_event_script_state *state
81 = talloc_get_type(p, struct ctdb_event_script_state);
82 struct ctdb_script *current;
83 unsigned int slen, min;
85 /* We may have been aborted to run something else. Discard */
86 if (state->scripts == NULL) {
90 current = get_current_script(state);
92 /* Append, but don't overfill buffer. It starts zero-filled. */
93 slen = strlen(current->output);
94 min = MIN(len, sizeof(current->output) - slen - 1);
96 memcpy(current->output + slen, str, min);
99 int32_t ctdb_control_get_event_script_status(struct ctdb_context *ctdb,
103 if (call_type >= CTDB_EVENT_MAX) {
107 if (ctdb->last_status[call_type] == NULL) {
108 /* If it's never been run, return nothing so they can tell. */
111 outdata->dsize = talloc_get_size(ctdb->last_status[call_type]);
112 outdata->dptr = (uint8_t *)ctdb->last_status[call_type];
117 /* To ignore directory entry return 0, else return non-zero */
118 static int script_filter(const struct dirent *de)
120 int namelen = strlen(de->d_name);
122 /* Ignore . and .. */
127 /* Skip temporary files left behind by emacs */
128 if (de->d_name[namelen-1] == '~') {
132 /* Filename should start with [0-9][0-9]. */
133 if (!isdigit(de->d_name[0]) || !isdigit(de->d_name[1]) ||
134 de->d_name[2] != '.') {
138 if (namelen > MAX_SCRIPT_NAME) {
145 /* Return true if OK, otherwise set errno. */
146 static bool check_executable(const char *dir, const char *name)
151 full = talloc_asprintf(NULL, "%s/%s", dir, name);
155 if (stat(full, &st) != 0) {
156 DEBUG(DEBUG_ERR,("Could not stat event script %s: %s\n",
157 full, strerror(errno)));
162 if (!(st.st_mode & S_IXUSR)) {
163 DEBUG(DEBUG_DEBUG,("Event script %s is not executable. Ignoring this event script\n", full));
173 static struct ctdb_script_list_old *ctdb_get_script_list(
174 struct ctdb_context *ctdb,
177 struct dirent **namelist;
178 struct ctdb_script_list_old *scripts;
181 /* scan all directory entries and insert all valid scripts into the
184 count = scandir(ctdb->event_script_dir, &namelist, script_filter, alphasort);
186 DEBUG(DEBUG_CRIT, ("Failed to read event script directory '%s' - %s\n",
187 ctdb->event_script_dir, strerror(errno)));
191 /* Overallocates by one, but that's OK */
192 scripts = talloc_zero_size(mem_ctx,
194 + sizeof(scripts->scripts[0]) * count);
195 if (scripts == NULL) {
196 DEBUG(DEBUG_ERR, (__location__ " Failed to allocate scripts\n"));
199 scripts->num_scripts = count;
201 for (i = 0; i < count; i++) {
202 struct ctdb_script *s = &scripts->scripts[i];
204 if (strlcpy(s->name, namelist[i]->d_name, sizeof(s->name)) >=
206 s->status = -ENAMETOOLONG;
211 if (!check_executable(ctdb->event_script_dir,
212 namelist[i]->d_name)) {
218 for (i=0; i<count; i++) {
226 /* There cannot be more than 10 arguments to command helper. */
227 #define MAX_HELPER_ARGS (10)
229 static bool child_helper_args(TALLOC_CTX *mem_ctx, struct ctdb_context *ctdb,
230 enum ctdb_event call,
232 struct ctdb_script *current, int fd,
233 int *argc, const char ***argv)
237 char *t, *saveptr, *opt;
239 tmp = talloc_array(mem_ctx, const char *, 10+1);
240 if (tmp == NULL) goto failed;
242 tmp[0] = talloc_asprintf(tmp, "%d", fd);
243 tmp[1] = talloc_asprintf(tmp, "%s/%s", ctdb->event_script_dir, current->name);
244 tmp[2] = talloc_asprintf(tmp, "%s", ctdb_eventscript_call_names[call]);
247 /* Split options into individual arguments */
248 opt = talloc_strdup(mem_ctx, options);
253 t = strtok_r(opt, " ", &saveptr);
255 tmp[n++] = talloc_strdup(tmp, t);
256 if (n > MAX_HELPER_ARGS) {
259 t = strtok_r(NULL, " ", &saveptr);
262 for (i=0; i<n; i++) {
263 if (tmp[i] == NULL) {
268 /* Last argument should be NULL */
277 DEBUG(DEBUG_ERR, (__location__ " too many arguments '%s' to eventscript '%s'\n",
278 options, ctdb_eventscript_call_names[call]));
288 static void ctdb_event_script_handler(struct tevent_context *ev,
289 struct tevent_fd *fde,
290 uint16_t flags, void *p);
292 static char helper_prog[PATH_MAX+1] = "";
294 static int fork_child_for_script(struct ctdb_context *ctdb,
295 struct ctdb_event_script_state *state)
298 struct tevent_fd *fde;
299 struct ctdb_script *current = get_current_script(state);
303 if (!ctdb_set_helper("event helper", helper_prog, sizeof(helper_prog),
305 CTDB_HELPER_BINDIR, "ctdb_event_helper")) {
306 ctdb_die(ctdb, __location__
307 " Unable to set event helper\n");
310 current->start = timeval_current();
314 DEBUG(DEBUG_ERR, (__location__ " pipe failed for child eventscript process\n"));
318 /* Arguments for helper */
319 if (!child_helper_args(state, ctdb, state->call, state->options, current,
320 state->fd[1], &argc, &argv)) {
321 DEBUG(DEBUG_ERR, (__location__ " failed to create arguments for eventscript helper\n"));
328 if (!ctdb_vfork_with_logging(state, ctdb, current->name,
329 helper_prog, argc, argv,
330 log_event_script_output,
331 state, &state->child)) {
342 set_close_on_exec(state->fd[0]);
344 /* Set ourselves up to be called when that's done. */
345 fde = tevent_add_fd(ctdb->ev, state, state->fd[0], TEVENT_FD_READ,
346 ctdb_event_script_handler, state);
347 tevent_fd_set_auto_close(fde);
353 Summarize status of this run of scripts.
355 static int script_status(struct ctdb_script_list_old *scripts)
359 for (i = 0; i < scripts->num_scripts; i++) {
360 switch (scripts->scripts[i].status) {
364 /* Disabled or missing; that's OK. */
370 return scripts->scripts[i].status;
378 /* called when child is finished */
379 static void ctdb_event_script_handler(struct tevent_context *ev,
380 struct tevent_fd *fde,
381 uint16_t flags, void *p)
383 struct ctdb_event_script_state *state =
384 talloc_get_type(p, struct ctdb_event_script_state);
385 struct ctdb_script *current = get_current_script(state);
386 struct ctdb_context *ctdb = state->ctdb;
390 DEBUG(DEBUG_ERR,("Eventscript finished but ctdb is NULL\n"));
394 r = sys_read(state->fd[0], ¤t->status, sizeof(current->status));
396 current->status = -errno;
398 current->status = -EINTR;
399 } else if (r != sizeof(current->status)) {
400 current->status = -EIO;
403 current->finished = timeval_current();
404 /* valgrind gets overloaded if we run next script as it's still doing
405 * post-execution analysis, so kill finished child here. */
406 if (ctdb->valgrinding) {
407 ctdb_kill(ctdb, state->child, SIGKILL);
412 status = script_status(state->scripts);
414 /* Aborted or finished all scripts? We're done. */
415 if (status != 0 || state->current+1 == state->scripts->num_scripts) {
418 ("Eventscript %s %s finished with state %d\n",
419 ctdb_eventscript_call_names[state->call],
420 state->options, status));
423 ctdb->event_script_timeouts = 0;
428 /* Forget about that old fd. */
434 current->status = fork_child_for_script(ctdb, state);
435 if (current->status != 0) {
436 /* This calls the callback. */
441 struct debug_hung_script_state {
442 struct ctdb_context *ctdb;
444 enum ctdb_event call;
447 static int debug_hung_script_state_destructor(struct debug_hung_script_state *state)
450 ctdb_kill(state->ctdb, state->child, SIGKILL);
455 static void debug_hung_script_timeout(struct tevent_context *ev, struct tevent_timer *te,
456 struct timeval t, void *p)
458 struct debug_hung_script_state *state =
459 talloc_get_type(p, struct debug_hung_script_state);
464 static void debug_hung_script_done(struct tevent_context *ev, struct tevent_fd *fde,
465 uint16_t flags, void *p)
467 struct debug_hung_script_state *state =
468 talloc_get_type(p, struct debug_hung_script_state);
473 static void ctdb_run_debug_hung_script(struct ctdb_context *ctdb, struct debug_hung_script_state *state)
476 const char * debug_hung_script = CTDB_ETCDIR "/debug-hung-script.sh";
478 struct tevent_timer *ttimer;
479 struct tevent_fd *tfd;
484 DEBUG(DEBUG_ERR,("Failed to create pipe fd for debug hung script\n"));
488 if (getenv("CTDB_DEBUG_HUNG_SCRIPT") != NULL) {
489 debug_hung_script = getenv("CTDB_DEBUG_HUNG_SCRIPT");
492 argv = talloc_array(state, const char *, 5);
494 argv[0] = talloc_asprintf(argv, "%d", fd[1]);
495 argv[1] = talloc_strdup(argv, debug_hung_script);
496 argv[2] = talloc_asprintf(argv, "%d", state->child);
497 argv[3] = talloc_strdup(argv, ctdb_eventscript_call_names[state->call]);
500 for (i=0; i<4; i++) {
501 if (argv[i] == NULL) {
510 if (!ctdb_vfork_with_logging(state, ctdb, "Hung-script",
511 helper_prog, 5, argv, NULL, NULL, &pid)) {
512 DEBUG(DEBUG_ERR,("Failed to fork a child to track hung event script\n"));
522 ttimer = tevent_add_timer(ctdb->ev, state,
523 timeval_current_ofs(ctdb->tunable.script_timeout, 0),
524 debug_hung_script_timeout, state);
525 if (ttimer == NULL) {
530 tfd = tevent_add_fd(ctdb->ev, state, fd[0], TEVENT_FD_READ,
531 debug_hung_script_done, state);
537 tevent_fd_set_auto_close(tfd);
540 /* called when child times out */
541 static void ctdb_event_script_timeout(struct tevent_context *ev,
542 struct tevent_timer *te,
543 struct timeval t, void *p)
545 struct ctdb_event_script_state *state = talloc_get_type(p, struct ctdb_event_script_state);
546 struct ctdb_context *ctdb = state->ctdb;
547 struct ctdb_script *current = get_current_script(state);
548 struct debug_hung_script_state *debug_state;
550 DEBUG(DEBUG_ERR,("Event script '%s %s %s' timed out after %.1fs, count: %u, pid: %d\n",
551 current->name, ctdb_eventscript_call_names[state->call], state->options,
552 timeval_elapsed(¤t->start),
553 ctdb->event_script_timeouts, state->child));
555 /* ignore timeouts for these events */
556 switch (state->call) {
557 case CTDB_EVENT_START_RECOVERY:
558 case CTDB_EVENT_RECOVERED:
559 case CTDB_EVENT_TAKE_IP:
560 case CTDB_EVENT_RELEASE_IP:
561 state->scripts->scripts[state->current].status = 0;
562 DEBUG(DEBUG_ERR,("Ignoring hung script for %s call %d\n", state->options, state->call));
565 state->scripts->scripts[state->current].status = -ETIME;
568 debug_state = talloc_zero(ctdb, struct debug_hung_script_state);
569 if (debug_state == NULL) {
574 /* Save information useful for running debug hung script, so
575 * eventscript state can be freed.
577 debug_state->ctdb = ctdb;
578 debug_state->child = state->child;
579 debug_state->call = state->call;
581 /* This destructor will actually kill the hung event script */
582 talloc_set_destructor(debug_state, debug_hung_script_state_destructor);
587 ctdb_run_debug_hung_script(ctdb, debug_state);
591 destroy an event script: kill it if ->child != 0.
593 static int event_script_destructor(struct ctdb_event_script_state *state)
596 struct event_script_callback *callback;
599 DEBUG(DEBUG_ERR,(__location__ " Sending SIGTERM to child pid:%d\n", state->child));
601 if (ctdb_kill(state->ctdb, state->child, SIGTERM) != 0) {
602 DEBUG(DEBUG_ERR,("Failed to kill child process for eventscript, errno %s(%d)\n", strerror(errno), errno));
606 /* If we were the current monitor, we no longer are. */
607 if (state->ctdb->current_monitor == state) {
608 state->ctdb->current_monitor = NULL;
611 /* Save our scripts as the last executed status, if we have them.
612 * See ctdb_event_script_callback_v where we abort monitor event. */
613 if (state->scripts) {
614 talloc_free(state->ctdb->last_status[state->call]);
615 state->ctdb->last_status[state->call] = state->scripts;
616 if (state->current < state->ctdb->last_status[state->call]->num_scripts) {
617 state->ctdb->last_status[state->call]->num_scripts = state->current+1;
621 /* Use last status as result, or "OK" if none. */
622 if (state->ctdb->last_status[state->call]) {
623 status = script_status(state->ctdb->last_status[state->call]);
628 state->ctdb->active_events--;
629 if (state->ctdb->active_events < 0) {
630 ctdb_fatal(state->ctdb, "Active events < 0");
633 /* This is allowed to free us; talloc will prevent double free anyway,
634 * but beware if you call this outside the destructor!
635 * the callback hangs off a different context so we walk the list
636 * of "active" callbacks until we find the one state points to.
637 * if we cant find it it means the callback has been removed.
639 for (callback = state->ctdb->script_callbacks; callback != NULL; callback = callback->next) {
640 if (callback == state->callback) {
645 state->callback = NULL;
648 /* Make sure destructor doesn't free itself! */
649 talloc_steal(NULL, callback);
650 callback->fn(state->ctdb, status, callback->private_data);
651 talloc_free(callback);
657 static unsigned int count_words(const char *options)
659 unsigned int words = 0;
661 options += strspn(options, " \t");
664 options += strcspn(options, " \t");
665 options += strspn(options, " \t");
670 static bool check_options(enum ctdb_event call, const char *options)
673 /* These all take no arguments. */
674 case CTDB_EVENT_INIT:
675 case CTDB_EVENT_SETUP:
676 case CTDB_EVENT_STARTUP:
677 case CTDB_EVENT_START_RECOVERY:
678 case CTDB_EVENT_RECOVERED:
679 case CTDB_EVENT_MONITOR:
680 case CTDB_EVENT_SHUTDOWN:
681 case CTDB_EVENT_IPREALLOCATED:
682 return count_words(options) == 0;
684 case CTDB_EVENT_TAKE_IP: /* interface, IP address, netmask bits. */
685 case CTDB_EVENT_RELEASE_IP:
686 return count_words(options) == 3;
688 case CTDB_EVENT_UPDATE_IP: /* old interface, new interface, IP address, netmask bits. */
689 return count_words(options) == 4;
692 DEBUG(DEBUG_ERR,(__location__ "Unknown ctdb_event %u\n", call));
697 static int remove_callback(struct event_script_callback *callback)
699 DLIST_REMOVE(callback->ctdb->script_callbacks, callback);
704 run the event script in the background, calling the callback when
707 static int ctdb_event_script_callback_v(struct ctdb_context *ctdb,
709 void (*callback)(struct ctdb_context *, int, void *),
711 enum ctdb_event call,
712 const char *fmt, va_list ap)
714 struct ctdb_event_script_state *state;
716 if (ctdb->recovery_mode != CTDB_RECOVERY_NORMAL) {
717 /* we guarantee that only some specifically allowed event scripts are run
719 const enum ctdb_event allowed_calls[] = {
722 CTDB_EVENT_START_RECOVERY,
724 CTDB_EVENT_RELEASE_IP,
725 CTDB_EVENT_IPREALLOCATED,
728 for (i=0;i<ARRAY_SIZE(allowed_calls);i++) {
729 if (call == allowed_calls[i]) break;
731 if (i == ARRAY_SIZE(allowed_calls)) {
732 DEBUG(DEBUG_ERR,("Refusing to run event scripts call '%s' while in recovery\n",
733 ctdb_eventscript_call_names[call]));
738 /* Do not run new monitor events if some event is already
739 * running, unless the running event is a monitor event, in
740 * which case running a new one should cancel the old one. */
741 if (call == CTDB_EVENT_MONITOR &&
742 ctdb->active_events > 0 &&
743 ctdb->current_monitor == NULL) {
744 if (callback != NULL) {
745 callback(ctdb, -ECANCELED, private_data);
750 /* Kill off any running monitor events to run this event. */
751 if (ctdb->current_monitor) {
752 struct ctdb_event_script_state *ms = talloc_get_type(ctdb->current_monitor, struct ctdb_event_script_state);
754 /* Cancel current monitor callback state only if monitoring
755 * context ctdb->monitor->monitor_context has not been freed */
756 if (ms->callback != NULL && !ctdb_stopped_monitoring(ctdb)) {
757 ms->callback->fn(ctdb, -ECANCELED, ms->callback->private_data);
758 talloc_free(ms->callback);
761 /* Discard script status so we don't save to last_status */
762 talloc_free(ctdb->current_monitor->scripts);
763 ctdb->current_monitor->scripts = NULL;
764 talloc_free(ctdb->current_monitor);
765 ctdb->current_monitor = NULL;
768 state = talloc(ctdb->event_script_ctx, struct ctdb_event_script_state);
769 CTDB_NO_MEMORY(ctdb, state);
771 /* The callback isn't done if the context is freed. */
772 state->callback = talloc(mem_ctx, struct event_script_callback);
773 CTDB_NO_MEMORY(ctdb, state->callback);
774 DLIST_ADD(ctdb->script_callbacks, state->callback);
775 talloc_set_destructor(state->callback, remove_callback);
776 state->callback->ctdb = ctdb;
777 state->callback->fn = callback;
778 state->callback->private_data = private_data;
782 state->options = talloc_vasprintf(state, fmt, ap);
783 state->timeout = timeval_set(ctdb->tunable.script_timeout, 0);
784 state->scripts = NULL;
785 if (state->options == NULL) {
786 DEBUG(DEBUG_ERR, (__location__ " could not allocate state->options\n"));
790 if (!check_options(state->call, state->options)) {
791 DEBUG(DEBUG_ERR, ("Bad eventscript options '%s' for '%s'\n",
793 ctdb_eventscript_call_names[state->call]));
798 DEBUG(DEBUG_INFO,(__location__ " Starting eventscript %s %s\n",
799 ctdb_eventscript_call_names[state->call],
802 /* This is not a child of state, since we save it in destructor. */
803 state->scripts = ctdb_get_script_list(ctdb, ctdb);
804 if (state->scripts == NULL) {
811 if (call == CTDB_EVENT_MONITOR) {
812 ctdb->current_monitor = state;
815 talloc_set_destructor(state, event_script_destructor);
817 ctdb->active_events++;
820 if (state->scripts->num_scripts == 0) {
821 callback(ctdb, 0, private_data);
826 state->scripts->scripts[0].status = fork_child_for_script(ctdb, state);
827 if (state->scripts->scripts[0].status != 0) {
828 /* Callback is called from destructor, with fail result. */
833 if (!timeval_is_zero(&state->timeout)) {
834 tevent_add_timer(ctdb->ev, state,
835 timeval_current_ofs(state->timeout.tv_sec,
836 state->timeout.tv_usec),
837 ctdb_event_script_timeout, state);
839 DEBUG(DEBUG_ERR, (__location__ " eventscript %s %s called with no timeout\n",
840 ctdb_eventscript_call_names[state->call],
849 run the event script in the background, calling the callback when
850 finished. If mem_ctx is freed, callback will never be called.
852 int ctdb_event_script_callback(struct ctdb_context *ctdb,
854 void (*callback)(struct ctdb_context *, int, void *),
856 enum ctdb_event call,
857 const char *fmt, ...)
863 ret = ctdb_event_script_callback_v(ctdb, mem_ctx, callback, private_data, call, fmt, ap);
870 struct callback_status {
876 called when ctdb_event_script() finishes
878 static void event_script_callback(struct ctdb_context *ctdb, int status, void *private_data)
880 struct callback_status *s = (struct callback_status *)private_data;
886 run the event script, waiting for it to complete. Used when the caller
887 doesn't want to continue till the event script has finished.
889 int ctdb_event_script_args(struct ctdb_context *ctdb, enum ctdb_event call,
890 const char *fmt, ...)
894 struct callback_status status = {
900 ret = ctdb_event_script_callback_v(ctdb, ctdb,
901 event_script_callback, &status, call, fmt, ap);
907 while (status.done == false && tevent_loop_once(ctdb->ev) == 0) /* noop */;
909 if (status.status == -ETIME) {
910 DEBUG(DEBUG_ERR, (__location__ " eventscript for '%s' timedout."
911 " Immediately banning ourself for %d seconds\n",
912 ctdb_eventscript_call_names[call],
913 ctdb->tunable.recovery_ban_period));
915 /* Don't ban self if CTDB is starting up or shutting down */
916 if (call != CTDB_EVENT_INIT && call != CTDB_EVENT_SHUTDOWN) {
921 return status.status;
924 int ctdb_event_script(struct ctdb_context *ctdb, enum ctdb_event call)
926 /* GCC complains about empty format string, so use %s and "". */
927 return ctdb_event_script_args(ctdb, call, "%s", "");
930 struct eventscript_callback_state {
931 struct ctdb_req_control_old *c;
935 called when a forced eventscript run has finished
937 static void run_eventscripts_callback(struct ctdb_context *ctdb, int status,
940 const char *errmsg = NULL;
942 struct eventscript_callback_state *state =
943 talloc_get_type(private_data, struct eventscript_callback_state);
946 if (status == -ECANCELED) {
948 (__location__ " Eventscript cancelled\n"));
949 errmsg = "cancelled";
952 (__location__ " Failed to run eventscripts\n"));
956 ctdb_request_control_reply(ctdb, state->c, NULL, status, errmsg);
957 /* This will free the struct ctdb_event_script_state we are in! */
963 /* Returns rest of string, or NULL if no match. */
964 static const char *get_call(const char *p, enum ctdb_event *call)
968 /* Skip any initial whitespace. */
969 p += strspn(p, " \t");
971 /* See if we match any. */
972 for (*call = 0; *call < CTDB_EVENT_MAX; (*call)++) {
973 len = strlen(ctdb_eventscript_call_names[*call]);
974 if (strncmp(p, ctdb_eventscript_call_names[*call], len) == 0) {
975 /* If end of string or whitespace, we're done. */
976 if (strcspn(p + len, " \t") == 0) {
985 A control to force running of the eventscripts from the ctdb client tool
987 int32_t ctdb_run_eventscripts(struct ctdb_context *ctdb,
988 struct ctdb_req_control_old *c,
989 TDB_DATA indata, bool *async_reply)
992 struct eventscript_callback_state *state;
994 enum ctdb_event call;
996 /* Figure out what call they want. */
997 options = get_call((const char *)indata.dptr, &call);
999 DEBUG(DEBUG_ERR, (__location__ " Invalid event name \"%s\"\n", (const char *)indata.dptr));
1003 if (ctdb->recovery_mode != CTDB_RECOVERY_NORMAL) {
1004 DEBUG(DEBUG_ERR, (__location__ " Aborted running eventscript \"%s\" while in RECOVERY mode\n", indata.dptr));
1008 state = talloc(ctdb->event_script_ctx, struct eventscript_callback_state);
1009 CTDB_NO_MEMORY(ctdb, state);
1011 state->c = talloc_steal(state, c);
1013 DEBUG(DEBUG_NOTICE,("Running eventscripts with arguments %s\n", indata.dptr));
1015 ret = ctdb_event_script_callback(ctdb,
1016 ctdb, run_eventscripts_callback, state,
1017 call, "%s", options);
1020 DEBUG(DEBUG_ERR,(__location__ " Failed to run eventscripts with arguments %s\n", indata.dptr));
1025 /* tell ctdb_control.c that we will be replying asynchronously */
1026 *async_reply = true;
1033 int32_t ctdb_control_enable_script(struct ctdb_context *ctdb, TDB_DATA indata)
1038 TALLOC_CTX *tmp_ctx = talloc_new(ctdb);
1040 script = (char *)indata.dptr;
1041 if (indata.dsize == 0) {
1042 DEBUG(DEBUG_ERR,(__location__ " No script specified.\n"));
1043 talloc_free(tmp_ctx);
1046 if (indata.dptr[indata.dsize - 1] != '\0') {
1047 DEBUG(DEBUG_ERR,(__location__ " String is not null terminated.\n"));
1048 talloc_free(tmp_ctx);
1051 if (index(script,'/') != NULL) {
1052 DEBUG(DEBUG_ERR,(__location__ " Script name contains '/'. Failed to enable script %s\n", script));
1053 talloc_free(tmp_ctx);
1058 if (stat(ctdb->event_script_dir, &st) != 0 &&
1060 DEBUG(DEBUG_CRIT,("No event script directory found at '%s'\n", ctdb->event_script_dir));
1061 talloc_free(tmp_ctx);
1066 filename = talloc_asprintf(tmp_ctx, "%s/%s", ctdb->event_script_dir, script);
1067 if (filename == NULL) {
1068 DEBUG(DEBUG_ERR,(__location__ " Failed to create script path\n"));
1069 talloc_free(tmp_ctx);
1073 if (stat(filename, &st) != 0) {
1074 DEBUG(DEBUG_ERR,("Could not stat event script %s. Failed to enable script.\n", filename));
1075 talloc_free(tmp_ctx);
1079 if (chmod(filename, st.st_mode | S_IXUSR) == -1) {
1080 DEBUG(DEBUG_ERR,("Could not chmod %s. Failed to enable script.\n", filename));
1081 talloc_free(tmp_ctx);
1085 talloc_free(tmp_ctx);
1089 int32_t ctdb_control_disable_script(struct ctdb_context *ctdb, TDB_DATA indata)
1094 TALLOC_CTX *tmp_ctx = talloc_new(ctdb);
1096 script = (char *)indata.dptr;
1097 if (indata.dsize == 0) {
1098 DEBUG(DEBUG_ERR,(__location__ " No script specified.\n"));
1099 talloc_free(tmp_ctx);
1102 if (indata.dptr[indata.dsize - 1] != '\0') {
1103 DEBUG(DEBUG_ERR,(__location__ " String is not null terminated.\n"));
1104 talloc_free(tmp_ctx);
1107 if (index(script,'/') != NULL) {
1108 DEBUG(DEBUG_ERR,(__location__ " Script name contains '/'. Failed to disable script %s\n", script));
1109 talloc_free(tmp_ctx);
1114 if (stat(ctdb->event_script_dir, &st) != 0 &&
1116 DEBUG(DEBUG_CRIT,("No event script directory found at '%s'\n", ctdb->event_script_dir));
1117 talloc_free(tmp_ctx);
1122 filename = talloc_asprintf(tmp_ctx, "%s/%s", ctdb->event_script_dir, script);
1123 if (filename == NULL) {
1124 DEBUG(DEBUG_ERR,(__location__ " Failed to create script path\n"));
1125 talloc_free(tmp_ctx);
1129 if (stat(filename, &st) != 0) {
1130 DEBUG(DEBUG_ERR,("Could not stat event script %s. Failed to disable script.\n", filename));
1131 talloc_free(tmp_ctx);
1135 if (chmod(filename, st.st_mode & ~(S_IXUSR|S_IXGRP|S_IXOTH)) == -1) {
1136 DEBUG(DEBUG_ERR,("Could not chmod %s. Failed to disable script.\n", filename));
1137 talloc_free(tmp_ctx);
1141 talloc_free(tmp_ctx);