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) {
289 execvp(argv[0], argv);
294 instance_start(struct service_instance *in)
297 int opipe[2] = { -1, -1 };
298 int epipe[2] = { -1, -1 };
300 if (!avl_is_empty(&in->errors.avl)) {
301 LOG("Not starting instance %s::%s, an error was indicated\n", in->srv->name, in->name);
305 if (in->proc.pending)
308 if (in->_stdout.fd.fd > -2) {
310 ULOG_WARN("pipe() failed: %d (%s)\n", errno, strerror(errno));
311 opipe[0] = opipe[1] = -1;
315 if (in->_stderr.fd.fd > -2) {
317 ULOG_WARN("pipe() failed: %d (%s)\n", errno, strerror(errno));
318 epipe[0] = epipe[1] = -1;
323 in->halt = !in->respawn;
336 instance_run(in, opipe[1], epipe[1]);
340 DEBUG(2, "Started instance %s::%s\n", in->srv->name, in->name);
342 clock_gettime(CLOCK_MONOTONIC, &in->start);
343 uloop_process_add(&in->proc);
346 ustream_fd_init(&in->_stdout, opipe[0]);
351 ustream_fd_init(&in->_stderr, epipe[0]);
355 service_event("instance.start", in->srv->name, in->name);
359 instance_stdio(struct ustream *s, int prio, struct service_instance *in)
361 char *newline, *str, *arg0, ident[32];
365 str = ustream_get_read_buf(s, NULL);
369 newline = strchr(str, '\n');
374 len = newline + 1 - str;
376 arg0 = basename(blobmsg_data(blobmsg_data(in->command)));
377 snprintf(ident, sizeof(ident), "%s[%d]", arg0, in->proc.pid);
379 ulog_open(ULOG_SYSLOG, LOG_DAEMON, ident);
380 ulog(prio, "%s\n", str);
381 ulog_open(ULOG_SYSLOG, LOG_DAEMON, "procd");
383 ustream_consume(s, len);
388 instance_stdout(struct ustream *s, int bytes)
390 instance_stdio(s, LOG_INFO,
391 container_of(s, struct service_instance, _stdout.stream));
395 instance_stderr(struct ustream *s, int bytes)
397 instance_stdio(s, LOG_ERR,
398 container_of(s, struct service_instance, _stderr.stream));
402 instance_timeout(struct uloop_timeout *t)
404 struct service_instance *in;
406 in = container_of(t, struct service_instance, timeout);
408 if (!in->halt && (in->restart || in->respawn))
413 instance_exit(struct uloop_process *p, int ret)
415 struct service_instance *in;
419 in = container_of(p, struct service_instance, proc);
421 clock_gettime(CLOCK_MONOTONIC, &tp);
422 runtime = tp.tv_sec - in->start.tv_sec;
424 DEBUG(2, "Instance %s::%s exit with error code %d after %ld seconds\n", in->srv->name, in->name, ret, runtime);
428 uloop_timeout_cancel(&in->timeout);
431 } else if (in->restart) {
433 } else if (in->respawn) {
434 if (runtime < in->respawn_threshold)
437 in->respawn_count = 0;
438 if (in->respawn_count > in->respawn_retry && in->respawn_retry > 0 ) {
439 LOG("Instance %s::%s s in a crash loop %d crashes, %ld seconds since last crash\n",
440 in->srv->name, in->name, in->respawn_count, runtime);
441 in->restart = in->respawn = 0;
444 uloop_timeout_set(&in->timeout, in->respawn_timeout * 1000);
447 service_event("instance.stop", in->srv->name, in->name);
451 instance_stop(struct service_instance *in)
453 if (!in->proc.pending)
456 in->restart = in->respawn = false;
457 kill(in->proc.pid, SIGTERM);
461 instance_restart(struct service_instance *in)
463 if (!in->proc.pending)
467 kill(in->proc.pid, SIGTERM);
471 instance_config_changed(struct service_instance *in, struct service_instance *in_new)
476 if (!blob_attr_equal(in->command, in_new->command))
479 if (!blobmsg_list_equal(&in->env, &in_new->env))
482 if (!blobmsg_list_equal(&in->data, &in_new->data))
485 if (!blobmsg_list_equal(&in->netdev, &in_new->netdev))
488 if (!blobmsg_list_equal(&in->file, &in_new->file))
491 if (in->nice != in_new->nice)
494 if (in->uid != in_new->uid)
497 if (in->gid != in_new->gid)
500 if (!blobmsg_list_equal(&in->limits, &in_new->limits))
503 if (!blobmsg_list_equal(&in->jail.mount, &in_new->jail.mount))
506 if (!blobmsg_list_equal(&in->errors, &in_new->errors))
513 instance_netdev_cmp(struct blobmsg_list_node *l1, struct blobmsg_list_node *l2)
515 struct instance_netdev *n1 = container_of(l1, struct instance_netdev, node);
516 struct instance_netdev *n2 = container_of(l2, struct instance_netdev, node);
518 return n1->ifindex == n2->ifindex;
522 instance_netdev_update(struct blobmsg_list_node *l)
524 struct instance_netdev *n = container_of(l, struct instance_netdev, node);
526 n->ifindex = if_nametoindex(n->node.avl.key);
530 instance_file_cmp(struct blobmsg_list_node *l1, struct blobmsg_list_node *l2)
532 struct instance_file *f1 = container_of(l1, struct instance_file, node);
533 struct instance_file *f2 = container_of(l2, struct instance_file, node);
535 return !memcmp(f1->md5, f2->md5, sizeof(f1->md5));
539 instance_file_update(struct blobmsg_list_node *l)
541 struct instance_file *f = container_of(l, struct instance_file, node);
546 memset(f->md5, 0, sizeof(f->md5));
548 fd = open(l->avl.key, O_RDONLY);
554 len = read(fd, buf, sizeof(buf));
564 md5_hash(buf, len, &md5);
567 md5_end(f->md5, &md5);
572 instance_fill_any(struct blobmsg_list *l, struct blob_attr *cur)
577 blobmsg_list_fill(l, blobmsg_data(cur), blobmsg_data_len(cur), false);
581 instance_fill_array(struct blobmsg_list *l, struct blob_attr *cur, blobmsg_update_cb cb, bool array)
583 struct blobmsg_list_node *node;
588 if (!blobmsg_check_attr_list(cur, BLOBMSG_TYPE_STRING))
591 blobmsg_list_fill(l, blobmsg_data(cur), blobmsg_data_len(cur), array);
593 blobmsg_list_for_each(l, node)
600 instance_jail_parse(struct service_instance *in, struct blob_attr *attr)
602 struct blob_attr *tb[__JAIL_ATTR_MAX];
603 struct jail *jail = &in->jail;
606 if (stat("/sbin/ujail", &s))
609 blobmsg_parse(jail_attr, __JAIL_ATTR_MAX, tb,
610 blobmsg_data(attr), blobmsg_data_len(attr));
614 if (tb[JAIL_ATTR_NAME]) {
615 jail->name = blobmsg_get_string(tb[JAIL_ATTR_NAME]);
618 if (tb[JAIL_ATTR_ROOT]) {
619 jail->root = blobmsg_get_string(tb[JAIL_ATTR_ROOT]);
622 if (tb[JAIL_ATTR_PROCFS]) {
623 jail->procfs = blobmsg_get_bool(tb[JAIL_ATTR_PROCFS]);
626 if (tb[JAIL_ATTR_SYSFS]) {
627 jail->sysfs = blobmsg_get_bool(tb[JAIL_ATTR_SYSFS]);
630 if (tb[JAIL_ATTR_UBUS]) {
631 jail->ubus = blobmsg_get_bool(tb[JAIL_ATTR_UBUS]);
634 if (tb[JAIL_ATTR_LOG]) {
635 jail->log = blobmsg_get_bool(tb[JAIL_ATTR_LOG]);
638 if (tb[JAIL_ATTR_MOUNT]) {
639 struct blob_attr *cur;
642 blobmsg_for_each_attr(cur, tb[JAIL_ATTR_MOUNT], rem)
644 instance_fill_array(&jail->mount, tb[JAIL_ATTR_MOUNT], NULL, false);
653 instance_config_parse(struct service_instance *in)
655 struct blob_attr *tb[__INSTANCE_ATTR_MAX];
656 struct blob_attr *cur, *cur2;
660 blobmsg_parse(instance_attr, __INSTANCE_ATTR_MAX, tb,
661 blobmsg_data(in->config), blobmsg_data_len(in->config));
663 cur = tb[INSTANCE_ATTR_COMMAND];
667 if (!blobmsg_check_attr_list(cur, BLOBMSG_TYPE_STRING))
670 blobmsg_for_each_attr(cur2, cur, rem) {
679 if (tb[INSTANCE_ATTR_RESPAWN]) {
681 uint32_t vals[3] = { 3600, 5, 5};
683 blobmsg_for_each_attr(cur2, tb[INSTANCE_ATTR_RESPAWN], rem) {
684 if ((i >= 3) && (blobmsg_type(cur2) == BLOBMSG_TYPE_STRING))
686 vals[i] = atoi(blobmsg_get_string(cur2));
690 in->respawn_count = 0;
691 in->respawn_threshold = vals[0];
692 in->respawn_timeout = vals[1];
693 in->respawn_retry = vals[2];
695 if (tb[INSTANCE_ATTR_TRIGGER]) {
696 in->trigger = tb[INSTANCE_ATTR_TRIGGER];
697 trigger_add(in->trigger, in);
700 if (tb[INSTANCE_ATTR_WATCH]) {
701 blobmsg_for_each_attr(cur2, tb[INSTANCE_ATTR_WATCH], rem) {
702 if (blobmsg_type(cur2) != BLOBMSG_TYPE_STRING)
704 DEBUG(3, "watch for %s\n", blobmsg_get_string(cur2));
705 watch_add(blobmsg_get_string(cur2), in);
709 if ((cur = tb[INSTANCE_ATTR_NICE])) {
710 in->nice = (int8_t) blobmsg_get_u32(cur);
711 if (in->nice < -20 || in->nice > 20)
715 if (tb[INSTANCE_ATTR_USER]) {
716 struct passwd *p = getpwnam(blobmsg_get_string(tb[INSTANCE_ATTR_USER]));
723 if (tb[INSTANCE_ATTR_TRACE])
724 in->trace = blobmsg_get_bool(tb[INSTANCE_ATTR_TRACE]);
726 if (!in->trace && tb[INSTANCE_ATTR_SECCOMP]) {
727 char *seccomp = blobmsg_get_string(tb[INSTANCE_ATTR_SECCOMP]);
730 if (stat(seccomp, &s))
731 ERROR("%s: not starting seccomp as %s is missing\n", in->name, seccomp);
733 in->seccomp = seccomp;
735 if (!in->trace && tb[INSTANCE_ATTR_JAIL])
736 in->has_jail = instance_jail_parse(in, tb[INSTANCE_ATTR_JAIL]);
738 if (tb[INSTANCE_ATTR_STDOUT] && blobmsg_get_bool(tb[INSTANCE_ATTR_STDOUT]))
739 in->_stdout.fd.fd = -1;
741 if (tb[INSTANCE_ATTR_STDERR] && blobmsg_get_bool(tb[INSTANCE_ATTR_STDERR]))
742 in->_stderr.fd.fd = -1;
744 instance_fill_any(&in->data, tb[INSTANCE_ATTR_DATA]);
746 if (!instance_fill_array(&in->env, tb[INSTANCE_ATTR_ENV], NULL, false))
749 if (!instance_fill_array(&in->netdev, tb[INSTANCE_ATTR_NETDEV], instance_netdev_update, true))
752 if (!instance_fill_array(&in->file, tb[INSTANCE_ATTR_FILE], instance_file_update, true))
755 if (!instance_fill_array(&in->limits, tb[INSTANCE_ATTR_LIMITS], NULL, false))
758 if (!instance_fill_array(&in->errors, tb[INSTANCE_ATTR_ERROR], NULL, true))
765 instance_config_cleanup(struct service_instance *in)
767 blobmsg_list_free(&in->env);
768 blobmsg_list_free(&in->data);
769 blobmsg_list_free(&in->netdev);
770 blobmsg_list_free(&in->file);
771 blobmsg_list_free(&in->limits);
772 blobmsg_list_free(&in->errors);
773 blobmsg_list_free(&in->jail.mount);
777 instance_config_move(struct service_instance *in, struct service_instance *in_src)
779 instance_config_cleanup(in);
780 blobmsg_list_move(&in->env, &in_src->env);
781 blobmsg_list_move(&in->data, &in_src->data);
782 blobmsg_list_move(&in->netdev, &in_src->netdev);
783 blobmsg_list_move(&in->file, &in_src->file);
784 blobmsg_list_move(&in->limits, &in_src->limits);
785 blobmsg_list_move(&in->errors, &in_src->errors);
786 blobmsg_list_move(&in->jail.mount, &in_src->jail.mount);
787 in->trigger = in_src->trigger;
788 in->command = in_src->command;
789 in->name = in_src->name;
790 in->node.avl.key = in_src->node.avl.key;
793 in->config = in_src->config;
794 in_src->config = NULL;
798 instance_update(struct service_instance *in, struct service_instance *in_new)
800 bool changed = instance_config_changed(in, in_new);
801 bool running = in->proc.pending;
803 if (!changed && running)
808 instance_config_move(in, in_new);
811 instance_restart(in);
812 instance_config_move(in, in_new);
813 /* restart happens in the child callback handler */
819 instance_free(struct service_instance *in)
821 if (in->_stdout.fd.fd > -1) {
822 ustream_free(&in->_stdout.stream);
823 close(in->_stdout.fd.fd);
826 if (in->_stderr.fd.fd > -1) {
827 ustream_free(&in->_stderr.stream);
828 close(in->_stderr.fd.fd);
831 uloop_process_delete(&in->proc);
832 uloop_timeout_cancel(&in->timeout);
835 instance_config_cleanup(in);
841 instance_init(struct service_instance *in, struct service *s, struct blob_attr *config)
843 config = blob_memdup(config);
845 in->name = blobmsg_name(config);
847 in->timeout.cb = instance_timeout;
848 in->proc.cb = instance_exit;
850 in->_stdout.fd.fd = -2;
851 in->_stdout.stream.string_data = true;
852 in->_stdout.stream.notify_read = instance_stdout;
854 in->_stderr.fd.fd = -2;
855 in->_stderr.stream.string_data = true;
856 in->_stderr.stream.notify_read = instance_stderr;
858 blobmsg_list_init(&in->netdev, struct instance_netdev, node, instance_netdev_cmp);
859 blobmsg_list_init(&in->file, struct instance_file, node, instance_file_cmp);
860 blobmsg_list_simple_init(&in->env);
861 blobmsg_list_simple_init(&in->data);
862 blobmsg_list_simple_init(&in->limits);
863 blobmsg_list_simple_init(&in->errors);
864 blobmsg_list_simple_init(&in->jail.mount);
865 in->valid = instance_config_parse(in);
868 void instance_dump(struct blob_buf *b, struct service_instance *in, int verbose)
872 i = blobmsg_open_table(b, in->name);
873 blobmsg_add_u8(b, "running", in->proc.pending);
874 if (in->proc.pending)
875 blobmsg_add_u32(b, "pid", in->proc.pid);
876 blobmsg_add_blob(b, in->command);
878 if (!avl_is_empty(&in->errors.avl)) {
879 struct blobmsg_list_node *var;
880 void *e = blobmsg_open_array(b, "errors");
881 blobmsg_list_for_each(&in->errors, var)
882 blobmsg_add_string(b, NULL, blobmsg_data(var->data));
883 blobmsg_close_table(b, e);
886 if (!avl_is_empty(&in->env.avl)) {
887 struct blobmsg_list_node *var;
888 void *e = blobmsg_open_table(b, "env");
889 blobmsg_list_for_each(&in->env, var)
890 blobmsg_add_string(b, blobmsg_name(var->data), blobmsg_data(var->data));
891 blobmsg_close_table(b, e);
894 if (!avl_is_empty(&in->data.avl)) {
895 struct blobmsg_list_node *var;
896 void *e = blobmsg_open_table(b, "data");
897 blobmsg_list_for_each(&in->data, var)
898 blobmsg_add_blob(b, var->data);
899 blobmsg_close_table(b, e);
902 if (!avl_is_empty(&in->limits.avl)) {
903 struct blobmsg_list_node *var;
904 void *e = blobmsg_open_table(b, "limits");
905 blobmsg_list_for_each(&in->limits, var)
906 blobmsg_add_string(b, blobmsg_name(var->data), blobmsg_data(var->data));
907 blobmsg_close_table(b, e);
911 void *r = blobmsg_open_table(b, "respawn");
912 blobmsg_add_u32(b, "timeout", in->respawn_timeout);
913 blobmsg_add_u32(b, "threshold", in->respawn_threshold);
914 blobmsg_add_u32(b, "retry", in->respawn_retry);
915 blobmsg_close_table(b, r);
919 blobmsg_add_u8(b, "trace", true);
922 blobmsg_add_string(b, "seccomp", in->seccomp);
925 void *r = blobmsg_open_table(b, "jail");
927 blobmsg_add_string(b, "name", in->jail.name);
929 blobmsg_add_string(b, "root", in->jail.root);
930 blobmsg_add_u8(b, "procfs", in->jail.procfs);
931 blobmsg_add_u8(b, "sysfs", in->jail.sysfs);
932 blobmsg_add_u8(b, "ubus", in->jail.ubus);
933 blobmsg_add_u8(b, "log", in->jail.log);
934 blobmsg_close_table(b, r);
935 if (!avl_is_empty(&in->jail.mount.avl)) {
936 struct blobmsg_list_node *var;
937 void *e = blobmsg_open_table(b, "mount");
938 blobmsg_list_for_each(&in->jail.mount, var)
939 blobmsg_add_string(b, blobmsg_name(var->data), blobmsg_data(var->data));
940 blobmsg_close_table(b, e);
944 if (verbose && in->trigger)
945 blobmsg_add_blob(b, in->trigger);
947 blobmsg_close_table(b, i);