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.
16 #include <sys/resource.h>
17 #include <sys/types.h>
18 #include <sys/socket.h>
29 #include <libubox/md5.h>
38 INSTANCE_ATTR_COMMAND,
43 INSTANCE_ATTR_TRIGGER,
44 INSTANCE_ATTR_RESPAWN,
54 INSTANCE_ATTR_SECCOMP,
58 static const struct blobmsg_policy instance_attr[__INSTANCE_ATTR_MAX] = {
59 [INSTANCE_ATTR_COMMAND] = { "command", BLOBMSG_TYPE_ARRAY },
60 [INSTANCE_ATTR_ENV] = { "env", BLOBMSG_TYPE_TABLE },
61 [INSTANCE_ATTR_DATA] = { "data", BLOBMSG_TYPE_TABLE },
62 [INSTANCE_ATTR_NETDEV] = { "netdev", BLOBMSG_TYPE_ARRAY },
63 [INSTANCE_ATTR_FILE] = { "file", BLOBMSG_TYPE_ARRAY },
64 [INSTANCE_ATTR_TRIGGER] = { "triggers", BLOBMSG_TYPE_ARRAY },
65 [INSTANCE_ATTR_RESPAWN] = { "respawn", BLOBMSG_TYPE_ARRAY },
66 [INSTANCE_ATTR_NICE] = { "nice", BLOBMSG_TYPE_INT32 },
67 [INSTANCE_ATTR_LIMITS] = { "limits", BLOBMSG_TYPE_TABLE },
68 [INSTANCE_ATTR_WATCH] = { "watch", BLOBMSG_TYPE_ARRAY },
69 [INSTANCE_ATTR_ERROR] = { "error", BLOBMSG_TYPE_ARRAY },
70 [INSTANCE_ATTR_USER] = { "user", BLOBMSG_TYPE_STRING },
71 [INSTANCE_ATTR_STDOUT] = { "stdout", BLOBMSG_TYPE_BOOL },
72 [INSTANCE_ATTR_STDERR] = { "stderr", BLOBMSG_TYPE_BOOL },
73 [INSTANCE_ATTR_JAIL] = { "jail", BLOBMSG_TYPE_TABLE },
74 [INSTANCE_ATTR_TRACE] = { "trace", BLOBMSG_TYPE_BOOL },
75 [INSTANCE_ATTR_SECCOMP] = { "seccomp", BLOBMSG_TYPE_STRING },
88 static const struct blobmsg_policy jail_attr[__JAIL_ATTR_MAX] = {
89 [JAIL_ATTR_NAME] = { "name", 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++] = in->seccomp;
201 blobmsg_list_for_each(&jail->mount, var) {
202 const char *type = blobmsg_data(var->data);
208 argv[argc++] = (char *) blobmsg_name(var->data);
217 instance_run(struct service_instance *in, int _stdout, int _stderr)
219 struct blobmsg_list_node *var;
220 struct blob_attr *cur;
223 int argc = 1; /* NULL terminated */
225 bool seccomp = !in->trace && !in->has_jail && in->seccomp;
226 bool setlbf = _stdout >= 0;
229 setpriority(PRIO_PROCESS, 0, in->nice);
231 blobmsg_for_each_attr(cur, in->command, rem)
234 blobmsg_list_for_each(&in->env, var)
235 setenv(blobmsg_name(var->data), blobmsg_data(var->data), 1);
238 setenv("SECCOMP_FILE", in->seccomp, 1);
240 if ((seccomp || setlbf) && asprintf(&ld_preload, "LD_PRELOAD=%s%s%s",
241 seccomp ? "/lib/libpreload-seccomp.so" : "",
242 seccomp && setlbf ? ":" : "",
243 setlbf ? "/lib/libsetlbf.so" : "") > 0)
246 blobmsg_list_for_each(&in->limits, var)
247 instance_limits(blobmsg_name(var->data), blobmsg_data(var->data));
252 argv = alloca(sizeof(char *) * (argc + in->jail.argc));
256 argv[argc++] = trace;
259 argc = jail_run(in, argv);
261 blobmsg_for_each_attr(cur, in->command, rem)
262 argv[argc++] = blobmsg_data(cur);
266 _stdin = open("/dev/null", O_RDONLY);
269 _stdout = open("/dev/null", O_WRONLY);
272 _stderr = open("/dev/null", O_WRONLY);
275 dup2(_stdin, STDIN_FILENO);
279 dup2(_stdout, STDOUT_FILENO);
283 dup2(_stderr, STDERR_FILENO);
287 if (in->gid && setgid(in->gid)) {
288 ERROR("failed to set group id %d: %d (%s)\n", in->gid, errno, strerror(errno));
291 if (in->uid && setuid(in->uid)) {
292 ERROR("failed to set user id %d: %d (%s)\n", in->uid, errno, strerror(errno));
296 execvp(argv[0], argv);
301 instance_free_stdio(struct service_instance *in)
303 if (in->_stdout.fd.fd > -1) {
304 ustream_free(&in->_stdout.stream);
305 close(in->_stdout.fd.fd);
306 in->_stdout.fd.fd = -1;
309 if (in->_stderr.fd.fd > -1) {
310 ustream_free(&in->_stderr.stream);
311 close(in->_stderr.fd.fd);
312 in->_stderr.fd.fd = -1;
317 instance_start(struct service_instance *in)
320 int opipe[2] = { -1, -1 };
321 int epipe[2] = { -1, -1 };
323 if (!avl_is_empty(&in->errors.avl)) {
324 LOG("Not starting instance %s::%s, an error was indicated\n", in->srv->name, in->name);
328 if (in->proc.pending)
331 instance_free_stdio(in);
332 if (in->_stdout.fd.fd > -2) {
334 ULOG_WARN("pipe() failed: %d (%s)\n", errno, strerror(errno));
335 opipe[0] = opipe[1] = -1;
339 if (in->_stderr.fd.fd > -2) {
341 ULOG_WARN("pipe() failed: %d (%s)\n", errno, strerror(errno));
342 epipe[0] = epipe[1] = -1;
347 in->halt = !in->respawn;
360 instance_run(in, opipe[1], epipe[1]);
364 DEBUG(2, "Started instance %s::%s\n", in->srv->name, in->name);
366 clock_gettime(CLOCK_MONOTONIC, &in->start);
367 uloop_process_add(&in->proc);
370 ustream_fd_init(&in->_stdout, opipe[0]);
375 ustream_fd_init(&in->_stderr, epipe[0]);
379 service_event("instance.start", in->srv->name, in->name);
383 instance_stdio(struct ustream *s, int prio, struct service_instance *in)
385 char *newline, *str, *arg0, ident[32];
388 arg0 = basename(blobmsg_data(blobmsg_data(in->command)));
389 snprintf(ident, sizeof(ident), "%s[%d]", arg0, in->proc.pid);
390 ulog_open(ULOG_SYSLOG, LOG_DAEMON, ident);
393 str = ustream_get_read_buf(s, NULL);
397 newline = strchr(str, '\n');
402 ulog(prio, "%s\n", str);
404 len = newline + 1 - str;
405 ustream_consume(s, len);
408 ulog_open(ULOG_SYSLOG, LOG_DAEMON, "procd");
412 instance_stdout(struct ustream *s, int bytes)
414 instance_stdio(s, LOG_INFO,
415 container_of(s, struct service_instance, _stdout.stream));
419 instance_stderr(struct ustream *s, int bytes)
421 instance_stdio(s, LOG_ERR,
422 container_of(s, struct service_instance, _stderr.stream));
426 instance_timeout(struct uloop_timeout *t)
428 struct service_instance *in;
430 in = container_of(t, struct service_instance, timeout);
432 if (!in->halt && (in->restart || in->respawn))
437 instance_exit(struct uloop_process *p, int ret)
439 struct service_instance *in;
443 in = container_of(p, struct service_instance, proc);
445 clock_gettime(CLOCK_MONOTONIC, &tp);
446 runtime = tp.tv_sec - in->start.tv_sec;
448 DEBUG(2, "Instance %s::%s exit with error code %d after %ld seconds\n", in->srv->name, in->name, ret, runtime);
452 uloop_timeout_cancel(&in->timeout);
455 } else if (in->restart) {
457 } else if (in->respawn) {
458 if (runtime < in->respawn_threshold)
461 in->respawn_count = 0;
462 if (in->respawn_count > in->respawn_retry && in->respawn_retry > 0 ) {
463 LOG("Instance %s::%s s in a crash loop %d crashes, %ld seconds since last crash\n",
464 in->srv->name, in->name, in->respawn_count, runtime);
465 in->restart = in->respawn = 0;
468 uloop_timeout_set(&in->timeout, in->respawn_timeout * 1000);
471 service_event("instance.stop", in->srv->name, in->name);
475 instance_stop(struct service_instance *in)
477 if (!in->proc.pending)
480 in->restart = in->respawn = false;
481 kill(in->proc.pid, SIGTERM);
485 instance_restart(struct service_instance *in)
487 if (!in->proc.pending)
491 kill(in->proc.pid, SIGTERM);
495 instance_config_changed(struct service_instance *in, struct service_instance *in_new)
500 if (!blob_attr_equal(in->command, in_new->command))
503 if (!blobmsg_list_equal(&in->env, &in_new->env))
506 if (!blobmsg_list_equal(&in->data, &in_new->data))
509 if (!blobmsg_list_equal(&in->netdev, &in_new->netdev))
512 if (!blobmsg_list_equal(&in->file, &in_new->file))
515 if (in->nice != in_new->nice)
518 if (in->uid != in_new->uid)
521 if (in->gid != in_new->gid)
524 if (!blobmsg_list_equal(&in->limits, &in_new->limits))
527 if (!blobmsg_list_equal(&in->jail.mount, &in_new->jail.mount))
530 if (!blobmsg_list_equal(&in->errors, &in_new->errors))
537 instance_netdev_cmp(struct blobmsg_list_node *l1, struct blobmsg_list_node *l2)
539 struct instance_netdev *n1 = container_of(l1, struct instance_netdev, node);
540 struct instance_netdev *n2 = container_of(l2, struct instance_netdev, node);
542 return n1->ifindex == n2->ifindex;
546 instance_netdev_update(struct blobmsg_list_node *l)
548 struct instance_netdev *n = container_of(l, struct instance_netdev, node);
550 n->ifindex = if_nametoindex(n->node.avl.key);
554 instance_file_cmp(struct blobmsg_list_node *l1, struct blobmsg_list_node *l2)
556 struct instance_file *f1 = container_of(l1, struct instance_file, node);
557 struct instance_file *f2 = container_of(l2, struct instance_file, node);
559 return !memcmp(f1->md5, f2->md5, sizeof(f1->md5));
563 instance_file_update(struct blobmsg_list_node *l)
565 struct instance_file *f = container_of(l, struct instance_file, node);
570 memset(f->md5, 0, sizeof(f->md5));
572 fd = open(l->avl.key, O_RDONLY);
578 len = read(fd, buf, sizeof(buf));
588 md5_hash(buf, len, &md5);
591 md5_end(f->md5, &md5);
596 instance_fill_any(struct blobmsg_list *l, struct blob_attr *cur)
601 blobmsg_list_fill(l, blobmsg_data(cur), blobmsg_data_len(cur), false);
605 instance_fill_array(struct blobmsg_list *l, struct blob_attr *cur, blobmsg_update_cb cb, bool array)
607 struct blobmsg_list_node *node;
612 if (!blobmsg_check_attr_list(cur, BLOBMSG_TYPE_STRING))
615 blobmsg_list_fill(l, blobmsg_data(cur), blobmsg_data_len(cur), array);
617 blobmsg_list_for_each(l, node)
624 instance_jail_parse(struct service_instance *in, struct blob_attr *attr)
626 struct blob_attr *tb[__JAIL_ATTR_MAX];
627 struct jail *jail = &in->jail;
630 if (stat("/sbin/ujail", &s))
633 blobmsg_parse(jail_attr, __JAIL_ATTR_MAX, tb,
634 blobmsg_data(attr), blobmsg_data_len(attr));
638 if (tb[JAIL_ATTR_NAME]) {
639 jail->name = blobmsg_get_string(tb[JAIL_ATTR_NAME]);
642 if (tb[JAIL_ATTR_PROCFS]) {
643 jail->procfs = blobmsg_get_bool(tb[JAIL_ATTR_PROCFS]);
646 if (tb[JAIL_ATTR_SYSFS]) {
647 jail->sysfs = blobmsg_get_bool(tb[JAIL_ATTR_SYSFS]);
650 if (tb[JAIL_ATTR_UBUS]) {
651 jail->ubus = blobmsg_get_bool(tb[JAIL_ATTR_UBUS]);
654 if (tb[JAIL_ATTR_LOG]) {
655 jail->log = blobmsg_get_bool(tb[JAIL_ATTR_LOG]);
658 if (tb[JAIL_ATTR_MOUNT]) {
659 struct blob_attr *cur;
662 blobmsg_for_each_attr(cur, tb[JAIL_ATTR_MOUNT], rem)
664 instance_fill_array(&jail->mount, tb[JAIL_ATTR_MOUNT], NULL, false);
673 instance_config_parse(struct service_instance *in)
675 struct blob_attr *tb[__INSTANCE_ATTR_MAX];
676 struct blob_attr *cur, *cur2;
680 blobmsg_parse(instance_attr, __INSTANCE_ATTR_MAX, tb,
681 blobmsg_data(in->config), blobmsg_data_len(in->config));
683 cur = tb[INSTANCE_ATTR_COMMAND];
687 if (!blobmsg_check_attr_list(cur, BLOBMSG_TYPE_STRING))
690 blobmsg_for_each_attr(cur2, cur, rem) {
699 if (tb[INSTANCE_ATTR_RESPAWN]) {
701 uint32_t vals[3] = { 3600, 5, 5};
703 blobmsg_for_each_attr(cur2, tb[INSTANCE_ATTR_RESPAWN], rem) {
704 if ((i >= 3) && (blobmsg_type(cur2) == BLOBMSG_TYPE_STRING))
706 vals[i] = atoi(blobmsg_get_string(cur2));
710 in->respawn_count = 0;
711 in->respawn_threshold = vals[0];
712 in->respawn_timeout = vals[1];
713 in->respawn_retry = vals[2];
715 if (tb[INSTANCE_ATTR_TRIGGER]) {
716 in->trigger = tb[INSTANCE_ATTR_TRIGGER];
717 trigger_add(in->trigger, in);
720 if (tb[INSTANCE_ATTR_WATCH]) {
721 blobmsg_for_each_attr(cur2, tb[INSTANCE_ATTR_WATCH], rem) {
722 if (blobmsg_type(cur2) != BLOBMSG_TYPE_STRING)
724 DEBUG(3, "watch for %s\n", blobmsg_get_string(cur2));
725 watch_add(blobmsg_get_string(cur2), in);
729 if ((cur = tb[INSTANCE_ATTR_NICE])) {
730 in->nice = (int8_t) blobmsg_get_u32(cur);
731 if (in->nice < -20 || in->nice > 20)
735 if (tb[INSTANCE_ATTR_USER]) {
736 struct passwd *p = getpwnam(blobmsg_get_string(tb[INSTANCE_ATTR_USER]));
743 if (tb[INSTANCE_ATTR_TRACE])
744 in->trace = blobmsg_get_bool(tb[INSTANCE_ATTR_TRACE]);
746 if (!in->trace && tb[INSTANCE_ATTR_SECCOMP]) {
747 char *seccomp = blobmsg_get_string(tb[INSTANCE_ATTR_SECCOMP]);
750 if (stat(seccomp, &s))
751 ERROR("%s: not starting seccomp as %s is missing\n", in->name, seccomp);
753 in->seccomp = seccomp;
755 if (!in->trace && tb[INSTANCE_ATTR_JAIL])
756 in->has_jail = instance_jail_parse(in, tb[INSTANCE_ATTR_JAIL]);
758 if (tb[INSTANCE_ATTR_STDOUT] && blobmsg_get_bool(tb[INSTANCE_ATTR_STDOUT]))
759 in->_stdout.fd.fd = -1;
761 if (tb[INSTANCE_ATTR_STDERR] && blobmsg_get_bool(tb[INSTANCE_ATTR_STDERR]))
762 in->_stderr.fd.fd = -1;
764 instance_fill_any(&in->data, tb[INSTANCE_ATTR_DATA]);
766 if (!instance_fill_array(&in->env, tb[INSTANCE_ATTR_ENV], NULL, false))
769 if (!instance_fill_array(&in->netdev, tb[INSTANCE_ATTR_NETDEV], instance_netdev_update, true))
772 if (!instance_fill_array(&in->file, tb[INSTANCE_ATTR_FILE], instance_file_update, true))
775 if (!instance_fill_array(&in->limits, tb[INSTANCE_ATTR_LIMITS], NULL, false))
778 if (!instance_fill_array(&in->errors, tb[INSTANCE_ATTR_ERROR], NULL, true))
785 instance_config_cleanup(struct service_instance *in)
787 blobmsg_list_free(&in->env);
788 blobmsg_list_free(&in->data);
789 blobmsg_list_free(&in->netdev);
790 blobmsg_list_free(&in->file);
791 blobmsg_list_free(&in->limits);
792 blobmsg_list_free(&in->errors);
793 blobmsg_list_free(&in->jail.mount);
797 instance_config_move(struct service_instance *in, struct service_instance *in_src)
799 instance_config_cleanup(in);
800 blobmsg_list_move(&in->env, &in_src->env);
801 blobmsg_list_move(&in->data, &in_src->data);
802 blobmsg_list_move(&in->netdev, &in_src->netdev);
803 blobmsg_list_move(&in->file, &in_src->file);
804 blobmsg_list_move(&in->limits, &in_src->limits);
805 blobmsg_list_move(&in->errors, &in_src->errors);
806 blobmsg_list_move(&in->jail.mount, &in_src->jail.mount);
807 in->trigger = in_src->trigger;
808 in->command = in_src->command;
809 in->name = in_src->name;
810 in->node.avl.key = in_src->node.avl.key;
813 in->config = in_src->config;
814 in_src->config = NULL;
818 instance_update(struct service_instance *in, struct service_instance *in_new)
820 bool changed = instance_config_changed(in, in_new);
821 bool running = in->proc.pending;
823 if (!changed && running)
828 instance_config_move(in, in_new);
831 instance_restart(in);
832 instance_config_move(in, in_new);
833 /* restart happens in the child callback handler */
839 instance_free(struct service_instance *in)
841 instance_free_stdio(in);
842 uloop_process_delete(&in->proc);
843 uloop_timeout_cancel(&in->timeout);
846 instance_config_cleanup(in);
852 instance_init(struct service_instance *in, struct service *s, struct blob_attr *config)
854 config = blob_memdup(config);
856 in->name = blobmsg_name(config);
858 in->timeout.cb = instance_timeout;
859 in->proc.cb = instance_exit;
861 in->_stdout.fd.fd = -2;
862 in->_stdout.stream.string_data = true;
863 in->_stdout.stream.notify_read = instance_stdout;
865 in->_stderr.fd.fd = -2;
866 in->_stderr.stream.string_data = true;
867 in->_stderr.stream.notify_read = instance_stderr;
869 blobmsg_list_init(&in->netdev, struct instance_netdev, node, instance_netdev_cmp);
870 blobmsg_list_init(&in->file, struct instance_file, node, instance_file_cmp);
871 blobmsg_list_simple_init(&in->env);
872 blobmsg_list_simple_init(&in->data);
873 blobmsg_list_simple_init(&in->limits);
874 blobmsg_list_simple_init(&in->errors);
875 blobmsg_list_simple_init(&in->jail.mount);
876 in->valid = instance_config_parse(in);
879 void instance_dump(struct blob_buf *b, struct service_instance *in, int verbose)
886 i = blobmsg_open_table(b, in->name);
887 blobmsg_add_u8(b, "running", in->proc.pending);
888 if (in->proc.pending)
889 blobmsg_add_u32(b, "pid", in->proc.pid);
890 blobmsg_add_blob(b, in->command);
892 if (!avl_is_empty(&in->errors.avl)) {
893 struct blobmsg_list_node *var;
894 void *e = blobmsg_open_array(b, "errors");
895 blobmsg_list_for_each(&in->errors, var)
896 blobmsg_add_string(b, NULL, blobmsg_data(var->data));
897 blobmsg_close_table(b, e);
900 if (!avl_is_empty(&in->env.avl)) {
901 struct blobmsg_list_node *var;
902 void *e = blobmsg_open_table(b, "env");
903 blobmsg_list_for_each(&in->env, var)
904 blobmsg_add_string(b, blobmsg_name(var->data), blobmsg_data(var->data));
905 blobmsg_close_table(b, e);
908 if (!avl_is_empty(&in->data.avl)) {
909 struct blobmsg_list_node *var;
910 void *e = blobmsg_open_table(b, "data");
911 blobmsg_list_for_each(&in->data, var)
912 blobmsg_add_blob(b, var->data);
913 blobmsg_close_table(b, e);
916 if (!avl_is_empty(&in->limits.avl)) {
917 struct blobmsg_list_node *var;
918 void *e = blobmsg_open_table(b, "limits");
919 blobmsg_list_for_each(&in->limits, var)
920 blobmsg_add_string(b, blobmsg_name(var->data), blobmsg_data(var->data));
921 blobmsg_close_table(b, e);
925 void *r = blobmsg_open_table(b, "respawn");
926 blobmsg_add_u32(b, "threshold", in->respawn_threshold);
927 blobmsg_add_u32(b, "timeout", in->respawn_timeout);
928 blobmsg_add_u32(b, "retry", in->respawn_retry);
929 blobmsg_close_table(b, r);
933 blobmsg_add_u8(b, "trace", true);
936 blobmsg_add_string(b, "seccomp", in->seccomp);
939 void *r = blobmsg_open_table(b, "jail");
941 blobmsg_add_string(b, "name", in->jail.name);
942 blobmsg_add_u8(b, "procfs", in->jail.procfs);
943 blobmsg_add_u8(b, "sysfs", in->jail.sysfs);
944 blobmsg_add_u8(b, "ubus", in->jail.ubus);
945 blobmsg_add_u8(b, "log", in->jail.log);
946 blobmsg_close_table(b, r);
947 if (!avl_is_empty(&in->jail.mount.avl)) {
948 struct blobmsg_list_node *var;
949 void *e = blobmsg_open_table(b, "mount");
950 blobmsg_list_for_each(&in->jail.mount, var)
951 blobmsg_add_string(b, blobmsg_name(var->data), blobmsg_data(var->data));
952 blobmsg_close_table(b, e);
956 if (verbose && in->trigger)
957 blobmsg_add_blob(b, in->trigger);
959 blobmsg_close_table(b, i);