2 * Copyright (C) 2013 Felix Fietkau <nbd@openwrt.org>
3 * Copyright (C) 2013 John Crispin <blogic@openwrt.org>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU Lesser General Public License version 2.1
7 * as published by the Free Software Foundation
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
15 #include <sys/resource.h>
16 #include <sys/types.h>
17 #include <sys/socket.h>
27 #include <libubox/md5.h>
36 INSTANCE_ATTR_COMMAND,
41 INSTANCE_ATTR_TRIGGER,
42 INSTANCE_ATTR_RESPAWN,
52 INSTANCE_ATTR_SECCOMP,
56 static const struct blobmsg_policy instance_attr[__INSTANCE_ATTR_MAX] = {
57 [INSTANCE_ATTR_COMMAND] = { "command", BLOBMSG_TYPE_ARRAY },
58 [INSTANCE_ATTR_ENV] = { "env", BLOBMSG_TYPE_TABLE },
59 [INSTANCE_ATTR_DATA] = { "data", BLOBMSG_TYPE_TABLE },
60 [INSTANCE_ATTR_NETDEV] = { "netdev", BLOBMSG_TYPE_ARRAY },
61 [INSTANCE_ATTR_FILE] = { "file", BLOBMSG_TYPE_ARRAY },
62 [INSTANCE_ATTR_TRIGGER] = { "triggers", BLOBMSG_TYPE_ARRAY },
63 [INSTANCE_ATTR_RESPAWN] = { "respawn", BLOBMSG_TYPE_ARRAY },
64 [INSTANCE_ATTR_NICE] = { "nice", BLOBMSG_TYPE_INT32 },
65 [INSTANCE_ATTR_LIMITS] = { "limits", BLOBMSG_TYPE_TABLE },
66 [INSTANCE_ATTR_WATCH] = { "watch", BLOBMSG_TYPE_ARRAY },
67 [INSTANCE_ATTR_ERROR] = { "error", BLOBMSG_TYPE_ARRAY },
68 [INSTANCE_ATTR_USER] = { "user", BLOBMSG_TYPE_STRING },
69 [INSTANCE_ATTR_STDOUT] = { "stdout", BLOBMSG_TYPE_BOOL },
70 [INSTANCE_ATTR_STDERR] = { "stderr", BLOBMSG_TYPE_BOOL },
71 [INSTANCE_ATTR_JAIL] = { "jail", BLOBMSG_TYPE_TABLE },
72 [INSTANCE_ATTR_TRACE] = { "trace", BLOBMSG_TYPE_BOOL },
73 [INSTANCE_ATTR_SECCOMP] = { "seccomp", BLOBMSG_TYPE_STRING },
87 static const struct blobmsg_policy jail_attr[__JAIL_ATTR_MAX] = {
88 [JAIL_ATTR_NAME] = { "name", BLOBMSG_TYPE_STRING },
89 [JAIL_ATTR_ROOT] = { "root", BLOBMSG_TYPE_STRING },
90 [JAIL_ATTR_PROCFS] = { "procfs", BLOBMSG_TYPE_BOOL },
91 [JAIL_ATTR_SYSFS] = { "sysfs", BLOBMSG_TYPE_BOOL },
92 [JAIL_ATTR_UBUS] = { "ubus", BLOBMSG_TYPE_BOOL },
93 [JAIL_ATTR_LOG] = { "log", BLOBMSG_TYPE_BOOL },
94 [JAIL_ATTR_MOUNT] = { "mount", BLOBMSG_TYPE_TABLE },
97 struct instance_netdev {
98 struct blobmsg_list_node node;
102 struct instance_file {
103 struct blobmsg_list_node node;
112 static const struct rlimit_name rlimit_names[] = {
114 { "core", RLIMIT_CORE },
115 { "cpu", RLIMIT_CPU },
116 { "data", RLIMIT_DATA },
117 { "fsize", RLIMIT_FSIZE },
118 { "memlock", RLIMIT_MEMLOCK },
119 { "msgqueue", RLIMIT_MSGQUEUE },
120 { "nice", RLIMIT_NICE },
121 { "nofile", RLIMIT_NOFILE },
122 { "nproc", RLIMIT_NPROC },
123 { "rss", RLIMIT_RSS },
124 { "rtprio", RLIMIT_RTPRIO },
125 { "sigpending", RLIMIT_SIGPENDING },
126 { "stack", RLIMIT_STACK },
130 static char trace[] = "/sbin/utrace";
132 static void closefd(int fd)
134 if (fd > STDERR_FILENO)
139 instance_limits(const char *limit, const char *value)
143 unsigned long cur, max;
145 for (i = 0; rlimit_names[i].name != NULL; i++) {
146 if (strcmp(rlimit_names[i].name, limit))
148 if (!strcmp(value, "unlimited")) {
149 rlim.rlim_cur = RLIM_INFINITY;
150 rlim.rlim_max = RLIM_INFINITY;
152 if (getrlimit(rlimit_names[i].resource, &rlim))
158 if (sscanf(value, "%lu %lu", &cur, &max) < 1)
165 setrlimit(rlimit_names[i].resource, &rlim);
171 jail_run(struct service_instance *in, char **argv)
173 struct blobmsg_list_node *var;
174 struct jail *jail = &in->jail;
177 argv[argc++] = "/sbin/ujail";
181 argv[argc++] = jail->name;
186 argv[argc++] = jail->root;
191 argv[argc++] = in->seccomp;
206 blobmsg_list_for_each(&jail->mount, var) {
207 const char *type = blobmsg_data(var->data);
213 argv[argc++] = (char *) blobmsg_name(var->data);
222 instance_run(struct service_instance *in, int _stdout, int _stderr)
224 struct blobmsg_list_node *var;
225 struct blob_attr *cur;
227 int argc = 1; /* NULL terminated */
231 setpriority(PRIO_PROCESS, 0, in->nice);
233 blobmsg_for_each_attr(cur, in->command, rem)
236 blobmsg_list_for_each(&in->env, var)
237 setenv(blobmsg_name(var->data), blobmsg_data(var->data), 1);
239 if (!in->trace && !in->has_jail && in->seccomp) {
240 setenv("SECCOMP_FILE", in->seccomp, 1);
241 setenv("LD_PRELOAD", "/lib/libpreload-seccomp.so", 1);
244 blobmsg_list_for_each(&in->limits, var)
245 instance_limits(blobmsg_name(var->data), blobmsg_data(var->data));
250 argv = alloca(sizeof(char *) * (argc + in->jail.argc));
254 argv[argc++] = trace;
257 argc = jail_run(in, argv);
259 blobmsg_for_each_attr(cur, in->command, rem)
260 argv[argc++] = blobmsg_data(cur);
264 _stdin = open("/dev/null", O_RDONLY);
267 _stdout = open("/dev/null", O_WRONLY);
270 _stderr = open("/dev/null", O_WRONLY);
273 dup2(_stdin, STDIN_FILENO);
277 dup2(_stdout, STDOUT_FILENO);
281 dup2(_stderr, STDERR_FILENO);
285 if (in->uid || in->gid) {
286 if (setuid(in->uid) || setgid(in->gid)) {
287 ERROR("failed to set uid:%d, gid:%d\n", in->uid, in->gid);
291 execvp(argv[0], argv);
296 instance_start(struct service_instance *in)
299 int opipe[2] = { -1, -1 };
300 int epipe[2] = { -1, -1 };
302 if (!avl_is_empty(&in->errors.avl)) {
303 LOG("Not starting instance %s::%s, an error was indicated\n", in->srv->name, in->name);
307 if (in->proc.pending)
310 if (in->_stdout.fd.fd > -2) {
312 ULOG_WARN("pipe() failed: %d (%s)\n", errno, strerror(errno));
313 opipe[0] = opipe[1] = -1;
317 if (in->_stderr.fd.fd > -2) {
319 ULOG_WARN("pipe() failed: %d (%s)\n", errno, strerror(errno));
320 epipe[0] = epipe[1] = -1;
325 in->halt = !in->respawn;
338 instance_run(in, opipe[1], epipe[1]);
342 DEBUG(2, "Started instance %s::%s\n", in->srv->name, in->name);
344 clock_gettime(CLOCK_MONOTONIC, &in->start);
345 uloop_process_add(&in->proc);
348 ustream_fd_init(&in->_stdout, opipe[0]);
353 ustream_fd_init(&in->_stderr, epipe[0]);
357 service_event("instance.start", in->srv->name, in->name);
361 instance_stdio(struct ustream *s, int prio, struct service_instance *in)
363 char *newline, *str, *arg0, ident[32];
367 str = ustream_get_read_buf(s, NULL);
371 newline = strchr(str, '\n');
376 len = newline + 1 - str;
378 arg0 = basename(blobmsg_data(blobmsg_data(in->command)));
379 snprintf(ident, sizeof(ident), "%s[%d]", arg0, in->proc.pid);
381 ulog_open(ULOG_SYSLOG, LOG_DAEMON, ident);
382 ulog(prio, "%s\n", str);
383 ulog_open(ULOG_SYSLOG, LOG_DAEMON, "procd");
385 ustream_consume(s, len);
390 instance_stdout(struct ustream *s, int bytes)
392 instance_stdio(s, LOG_INFO,
393 container_of(s, struct service_instance, _stdout.stream));
397 instance_stderr(struct ustream *s, int bytes)
399 instance_stdio(s, LOG_ERR,
400 container_of(s, struct service_instance, _stderr.stream));
404 instance_timeout(struct uloop_timeout *t)
406 struct service_instance *in;
408 in = container_of(t, struct service_instance, timeout);
410 if (!in->halt && (in->restart || in->respawn))
415 instance_exit(struct uloop_process *p, int ret)
417 struct service_instance *in;
421 in = container_of(p, struct service_instance, proc);
423 clock_gettime(CLOCK_MONOTONIC, &tp);
424 runtime = tp.tv_sec - in->start.tv_sec;
426 DEBUG(2, "Instance %s::%s exit with error code %d after %ld seconds\n", in->srv->name, in->name, ret, runtime);
430 uloop_timeout_cancel(&in->timeout);
433 } else if (in->restart) {
435 } else if (in->respawn) {
436 if (runtime < in->respawn_threshold)
439 in->respawn_count = 0;
440 if (in->respawn_count > in->respawn_retry && in->respawn_retry > 0 ) {
441 LOG("Instance %s::%s s in a crash loop %d crashes, %ld seconds since last crash\n",
442 in->srv->name, in->name, in->respawn_count, runtime);
443 in->restart = in->respawn = 0;
446 uloop_timeout_set(&in->timeout, in->respawn_timeout * 1000);
449 service_event("instance.stop", in->srv->name, in->name);
453 instance_stop(struct service_instance *in)
455 if (!in->proc.pending)
458 in->restart = in->respawn = false;
459 kill(in->proc.pid, SIGTERM);
463 instance_restart(struct service_instance *in)
465 if (!in->proc.pending)
469 kill(in->proc.pid, SIGTERM);
473 instance_config_changed(struct service_instance *in, struct service_instance *in_new)
478 if (!blob_attr_equal(in->command, in_new->command))
481 if (!blobmsg_list_equal(&in->env, &in_new->env))
484 if (!blobmsg_list_equal(&in->data, &in_new->data))
487 if (!blobmsg_list_equal(&in->netdev, &in_new->netdev))
490 if (!blobmsg_list_equal(&in->file, &in_new->file))
493 if (in->nice != in_new->nice)
496 if (in->uid != in_new->uid)
499 if (in->gid != in_new->gid)
502 if (!blobmsg_list_equal(&in->limits, &in_new->limits))
505 if (!blobmsg_list_equal(&in->jail.mount, &in_new->jail.mount))
508 if (!blobmsg_list_equal(&in->errors, &in_new->errors))
515 instance_netdev_cmp(struct blobmsg_list_node *l1, struct blobmsg_list_node *l2)
517 struct instance_netdev *n1 = container_of(l1, struct instance_netdev, node);
518 struct instance_netdev *n2 = container_of(l2, struct instance_netdev, node);
520 return n1->ifindex == n2->ifindex;
524 instance_netdev_update(struct blobmsg_list_node *l)
526 struct instance_netdev *n = container_of(l, struct instance_netdev, node);
528 n->ifindex = if_nametoindex(n->node.avl.key);
532 instance_file_cmp(struct blobmsg_list_node *l1, struct blobmsg_list_node *l2)
534 struct instance_file *f1 = container_of(l1, struct instance_file, node);
535 struct instance_file *f2 = container_of(l2, struct instance_file, node);
537 return !memcmp(f1->md5, f2->md5, sizeof(f1->md5));
541 instance_file_update(struct blobmsg_list_node *l)
543 struct instance_file *f = container_of(l, struct instance_file, node);
548 memset(f->md5, 0, sizeof(f->md5));
550 fd = open(l->avl.key, O_RDONLY);
556 len = read(fd, buf, sizeof(buf));
566 md5_hash(buf, len, &md5);
569 md5_end(f->md5, &md5);
574 instance_fill_any(struct blobmsg_list *l, struct blob_attr *cur)
579 blobmsg_list_fill(l, blobmsg_data(cur), blobmsg_data_len(cur), false);
583 instance_fill_array(struct blobmsg_list *l, struct blob_attr *cur, blobmsg_update_cb cb, bool array)
585 struct blobmsg_list_node *node;
590 if (!blobmsg_check_attr_list(cur, BLOBMSG_TYPE_STRING))
593 blobmsg_list_fill(l, blobmsg_data(cur), blobmsg_data_len(cur), array);
595 blobmsg_list_for_each(l, node)
602 instance_jail_parse(struct service_instance *in, struct blob_attr *attr)
604 struct blob_attr *tb[__JAIL_ATTR_MAX];
605 struct jail *jail = &in->jail;
608 if (stat("/sbin/ujail", &s))
611 blobmsg_parse(jail_attr, __JAIL_ATTR_MAX, tb,
612 blobmsg_data(attr), blobmsg_data_len(attr));
616 if (tb[JAIL_ATTR_NAME]) {
617 jail->name = blobmsg_get_string(tb[JAIL_ATTR_NAME]);
620 if (tb[JAIL_ATTR_ROOT]) {
621 jail->root = blobmsg_get_string(tb[JAIL_ATTR_ROOT]);
624 if (tb[JAIL_ATTR_PROCFS]) {
625 jail->procfs = blobmsg_get_bool(tb[JAIL_ATTR_PROCFS]);
628 if (tb[JAIL_ATTR_SYSFS]) {
629 jail->sysfs = blobmsg_get_bool(tb[JAIL_ATTR_SYSFS]);
632 if (tb[JAIL_ATTR_UBUS]) {
633 jail->ubus = blobmsg_get_bool(tb[JAIL_ATTR_UBUS]);
636 if (tb[JAIL_ATTR_LOG]) {
637 jail->log = blobmsg_get_bool(tb[JAIL_ATTR_LOG]);
640 if (tb[JAIL_ATTR_MOUNT]) {
641 struct blob_attr *cur;
644 blobmsg_for_each_attr(cur, tb[JAIL_ATTR_MOUNT], rem)
646 instance_fill_array(&jail->mount, tb[JAIL_ATTR_MOUNT], NULL, false);
655 instance_config_parse(struct service_instance *in)
657 struct blob_attr *tb[__INSTANCE_ATTR_MAX];
658 struct blob_attr *cur, *cur2;
662 blobmsg_parse(instance_attr, __INSTANCE_ATTR_MAX, tb,
663 blobmsg_data(in->config), blobmsg_data_len(in->config));
665 cur = tb[INSTANCE_ATTR_COMMAND];
669 if (!blobmsg_check_attr_list(cur, BLOBMSG_TYPE_STRING))
672 blobmsg_for_each_attr(cur2, cur, rem) {
681 if (tb[INSTANCE_ATTR_RESPAWN]) {
683 uint32_t vals[3] = { 3600, 5, 5};
685 blobmsg_for_each_attr(cur2, tb[INSTANCE_ATTR_RESPAWN], rem) {
686 if ((i >= 3) && (blobmsg_type(cur2) == BLOBMSG_TYPE_STRING))
688 vals[i] = atoi(blobmsg_get_string(cur2));
692 in->respawn_count = 0;
693 in->respawn_threshold = vals[0];
694 in->respawn_timeout = vals[1];
695 in->respawn_retry = vals[2];
697 if (tb[INSTANCE_ATTR_TRIGGER]) {
698 in->trigger = tb[INSTANCE_ATTR_TRIGGER];
699 trigger_add(in->trigger, in);
702 if (tb[INSTANCE_ATTR_WATCH]) {
703 blobmsg_for_each_attr(cur2, tb[INSTANCE_ATTR_WATCH], rem) {
704 if (blobmsg_type(cur2) != BLOBMSG_TYPE_STRING)
706 DEBUG(3, "watch for %s\n", blobmsg_get_string(cur2));
707 watch_add(blobmsg_get_string(cur2), in);
711 if ((cur = tb[INSTANCE_ATTR_NICE])) {
712 in->nice = (int8_t) blobmsg_get_u32(cur);
713 if (in->nice < -20 || in->nice > 20)
717 if (tb[INSTANCE_ATTR_USER]) {
718 struct passwd *p = getpwnam(blobmsg_get_string(tb[INSTANCE_ATTR_USER]));
725 if (tb[INSTANCE_ATTR_TRACE])
726 in->trace = blobmsg_get_bool(tb[INSTANCE_ATTR_TRACE]);
728 if (!in->trace && tb[INSTANCE_ATTR_SECCOMP]) {
729 char *seccomp = blobmsg_get_string(tb[INSTANCE_ATTR_SECCOMP]);
732 if (stat(seccomp, &s))
733 ERROR("%s: not starting seccomp as %s is missing\n", in->name, seccomp);
735 in->seccomp = seccomp;
737 if (!in->trace && tb[INSTANCE_ATTR_JAIL])
738 in->has_jail = instance_jail_parse(in, tb[INSTANCE_ATTR_JAIL]);
740 if (tb[INSTANCE_ATTR_STDOUT] && blobmsg_get_bool(tb[INSTANCE_ATTR_STDOUT]))
741 in->_stdout.fd.fd = -1;
743 if (tb[INSTANCE_ATTR_STDERR] && blobmsg_get_bool(tb[INSTANCE_ATTR_STDERR]))
744 in->_stderr.fd.fd = -1;
746 instance_fill_any(&in->data, tb[INSTANCE_ATTR_DATA]);
748 if (!instance_fill_array(&in->env, tb[INSTANCE_ATTR_ENV], NULL, false))
751 if (!instance_fill_array(&in->netdev, tb[INSTANCE_ATTR_NETDEV], instance_netdev_update, true))
754 if (!instance_fill_array(&in->file, tb[INSTANCE_ATTR_FILE], instance_file_update, true))
757 if (!instance_fill_array(&in->limits, tb[INSTANCE_ATTR_LIMITS], NULL, false))
760 if (!instance_fill_array(&in->errors, tb[INSTANCE_ATTR_ERROR], NULL, true))
767 instance_config_cleanup(struct service_instance *in)
769 blobmsg_list_free(&in->env);
770 blobmsg_list_free(&in->data);
771 blobmsg_list_free(&in->netdev);
772 blobmsg_list_free(&in->file);
773 blobmsg_list_free(&in->limits);
774 blobmsg_list_free(&in->errors);
775 blobmsg_list_free(&in->jail.mount);
779 instance_config_move(struct service_instance *in, struct service_instance *in_src)
781 instance_config_cleanup(in);
782 blobmsg_list_move(&in->env, &in_src->env);
783 blobmsg_list_move(&in->data, &in_src->data);
784 blobmsg_list_move(&in->netdev, &in_src->netdev);
785 blobmsg_list_move(&in->file, &in_src->file);
786 blobmsg_list_move(&in->limits, &in_src->limits);
787 blobmsg_list_move(&in->errors, &in_src->errors);
788 blobmsg_list_move(&in->jail.mount, &in_src->jail.mount);
789 in->trigger = in_src->trigger;
790 in->command = in_src->command;
791 in->name = in_src->name;
792 in->node.avl.key = in_src->node.avl.key;
795 in->config = in_src->config;
796 in_src->config = NULL;
800 instance_update(struct service_instance *in, struct service_instance *in_new)
802 bool changed = instance_config_changed(in, in_new);
803 bool running = in->proc.pending;
805 if (!changed && running)
810 instance_config_move(in, in_new);
813 instance_restart(in);
814 instance_config_move(in, in_new);
815 /* restart happens in the child callback handler */
821 instance_free(struct service_instance *in)
823 if (in->_stdout.fd.fd > -1) {
824 ustream_free(&in->_stdout.stream);
825 close(in->_stdout.fd.fd);
828 if (in->_stderr.fd.fd > -1) {
829 ustream_free(&in->_stderr.stream);
830 close(in->_stderr.fd.fd);
833 uloop_process_delete(&in->proc);
834 uloop_timeout_cancel(&in->timeout);
837 instance_config_cleanup(in);
843 instance_init(struct service_instance *in, struct service *s, struct blob_attr *config)
845 config = blob_memdup(config);
847 in->name = blobmsg_name(config);
849 in->timeout.cb = instance_timeout;
850 in->proc.cb = instance_exit;
852 in->_stdout.fd.fd = -2;
853 in->_stdout.stream.string_data = true;
854 in->_stdout.stream.notify_read = instance_stdout;
856 in->_stderr.fd.fd = -2;
857 in->_stderr.stream.string_data = true;
858 in->_stderr.stream.notify_read = instance_stderr;
860 blobmsg_list_init(&in->netdev, struct instance_netdev, node, instance_netdev_cmp);
861 blobmsg_list_init(&in->file, struct instance_file, node, instance_file_cmp);
862 blobmsg_list_simple_init(&in->env);
863 blobmsg_list_simple_init(&in->data);
864 blobmsg_list_simple_init(&in->limits);
865 blobmsg_list_simple_init(&in->errors);
866 blobmsg_list_simple_init(&in->jail.mount);
867 in->valid = instance_config_parse(in);
870 void instance_dump(struct blob_buf *b, struct service_instance *in, int verbose)
874 i = blobmsg_open_table(b, in->name);
875 blobmsg_add_u8(b, "running", in->proc.pending);
876 if (in->proc.pending)
877 blobmsg_add_u32(b, "pid", in->proc.pid);
878 blobmsg_add_blob(b, in->command);
880 if (!avl_is_empty(&in->errors.avl)) {
881 struct blobmsg_list_node *var;
882 void *e = blobmsg_open_array(b, "errors");
883 blobmsg_list_for_each(&in->errors, var)
884 blobmsg_add_string(b, NULL, blobmsg_data(var->data));
885 blobmsg_close_table(b, e);
888 if (!avl_is_empty(&in->env.avl)) {
889 struct blobmsg_list_node *var;
890 void *e = blobmsg_open_table(b, "env");
891 blobmsg_list_for_each(&in->env, var)
892 blobmsg_add_string(b, blobmsg_name(var->data), blobmsg_data(var->data));
893 blobmsg_close_table(b, e);
896 if (!avl_is_empty(&in->data.avl)) {
897 struct blobmsg_list_node *var;
898 void *e = blobmsg_open_table(b, "data");
899 blobmsg_list_for_each(&in->data, var)
900 blobmsg_add_blob(b, var->data);
901 blobmsg_close_table(b, e);
904 if (!avl_is_empty(&in->limits.avl)) {
905 struct blobmsg_list_node *var;
906 void *e = blobmsg_open_table(b, "limits");
907 blobmsg_list_for_each(&in->limits, var)
908 blobmsg_add_string(b, blobmsg_name(var->data), blobmsg_data(var->data));
909 blobmsg_close_table(b, e);
913 void *r = blobmsg_open_table(b, "respawn");
914 blobmsg_add_u32(b, "timeout", in->respawn_timeout);
915 blobmsg_add_u32(b, "threshold", in->respawn_threshold);
916 blobmsg_add_u32(b, "retry", in->respawn_retry);
917 blobmsg_close_table(b, r);
921 blobmsg_add_u8(b, "trace", true);
924 blobmsg_add_string(b, "seccomp", in->seccomp);
927 void *r = blobmsg_open_table(b, "jail");
929 blobmsg_add_string(b, "name", in->jail.name);
931 blobmsg_add_string(b, "root", in->jail.root);
932 blobmsg_add_u8(b, "procfs", in->jail.procfs);
933 blobmsg_add_u8(b, "sysfs", in->jail.sysfs);
934 blobmsg_add_u8(b, "ubus", in->jail.ubus);
935 blobmsg_add_u8(b, "log", in->jail.log);
936 blobmsg_close_table(b, r);
937 if (!avl_is_empty(&in->jail.mount.avl)) {
938 struct blobmsg_list_node *var;
939 void *e = blobmsg_open_table(b, "mount");
940 blobmsg_list_for_each(&in->jail.mount, var)
941 blobmsg_add_string(b, blobmsg_name(var->data), blobmsg_data(var->data));
942 blobmsg_close_table(b, e);
946 if (verbose && in->trigger)
947 blobmsg_add_blob(b, in->trigger);
949 blobmsg_close_table(b, i);