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>
30 #include <libubox/md5.h>
39 INSTANCE_ATTR_COMMAND
,
44 INSTANCE_ATTR_TRIGGER
,
45 INSTANCE_ATTR_RESPAWN
,
53 INSTANCE_ATTR_NO_NEW_PRIVS
,
56 INSTANCE_ATTR_SECCOMP
,
57 INSTANCE_ATTR_PIDFILE
,
58 INSTANCE_ATTR_RELOADSIG
,
59 INSTANCE_ATTR_TERMTIMEOUT
,
63 static const struct blobmsg_policy instance_attr
[__INSTANCE_ATTR_MAX
] = {
64 [INSTANCE_ATTR_COMMAND
] = { "command", BLOBMSG_TYPE_ARRAY
},
65 [INSTANCE_ATTR_ENV
] = { "env", BLOBMSG_TYPE_TABLE
},
66 [INSTANCE_ATTR_DATA
] = { "data", BLOBMSG_TYPE_TABLE
},
67 [INSTANCE_ATTR_NETDEV
] = { "netdev", BLOBMSG_TYPE_ARRAY
},
68 [INSTANCE_ATTR_FILE
] = { "file", BLOBMSG_TYPE_ARRAY
},
69 [INSTANCE_ATTR_TRIGGER
] = { "triggers", BLOBMSG_TYPE_ARRAY
},
70 [INSTANCE_ATTR_RESPAWN
] = { "respawn", BLOBMSG_TYPE_ARRAY
},
71 [INSTANCE_ATTR_NICE
] = { "nice", BLOBMSG_TYPE_INT32
},
72 [INSTANCE_ATTR_LIMITS
] = { "limits", BLOBMSG_TYPE_TABLE
},
73 [INSTANCE_ATTR_WATCH
] = { "watch", BLOBMSG_TYPE_ARRAY
},
74 [INSTANCE_ATTR_ERROR
] = { "error", BLOBMSG_TYPE_ARRAY
},
75 [INSTANCE_ATTR_USER
] = { "user", BLOBMSG_TYPE_STRING
},
76 [INSTANCE_ATTR_STDOUT
] = { "stdout", BLOBMSG_TYPE_BOOL
},
77 [INSTANCE_ATTR_STDERR
] = { "stderr", BLOBMSG_TYPE_BOOL
},
78 [INSTANCE_ATTR_NO_NEW_PRIVS
] = { "no_new_privs", BLOBMSG_TYPE_BOOL
},
79 [INSTANCE_ATTR_JAIL
] = { "jail", BLOBMSG_TYPE_TABLE
},
80 [INSTANCE_ATTR_TRACE
] = { "trace", BLOBMSG_TYPE_BOOL
},
81 [INSTANCE_ATTR_SECCOMP
] = { "seccomp", BLOBMSG_TYPE_STRING
},
82 [INSTANCE_ATTR_PIDFILE
] = { "pidfile", BLOBMSG_TYPE_STRING
},
83 [INSTANCE_ATTR_RELOADSIG
] = { "reload_signal", BLOBMSG_TYPE_INT32
},
84 [INSTANCE_ATTR_TERMTIMEOUT
] = { "term_timeout", BLOBMSG_TYPE_INT32
},
99 static const struct blobmsg_policy jail_attr
[__JAIL_ATTR_MAX
] = {
100 [JAIL_ATTR_NAME
] = { "name", BLOBMSG_TYPE_STRING
},
101 [JAIL_ATTR_HOSTNAME
] = { "hostname", BLOBMSG_TYPE_STRING
},
102 [JAIL_ATTR_PROCFS
] = { "procfs", BLOBMSG_TYPE_BOOL
},
103 [JAIL_ATTR_SYSFS
] = { "sysfs", BLOBMSG_TYPE_BOOL
},
104 [JAIL_ATTR_UBUS
] = { "ubus", BLOBMSG_TYPE_BOOL
},
105 [JAIL_ATTR_LOG
] = { "log", BLOBMSG_TYPE_BOOL
},
106 [JAIL_ATTR_RONLY
] = { "ronly", BLOBMSG_TYPE_BOOL
},
107 [JAIL_ATTR_MOUNT
] = { "mount", BLOBMSG_TYPE_TABLE
},
110 struct instance_netdev
{
111 struct blobmsg_list_node node
;
115 struct instance_file
{
116 struct blobmsg_list_node node
;
125 static const struct rlimit_name rlimit_names
[] = {
127 { "core", RLIMIT_CORE
},
128 { "cpu", RLIMIT_CPU
},
129 { "data", RLIMIT_DATA
},
130 { "fsize", RLIMIT_FSIZE
},
131 { "memlock", RLIMIT_MEMLOCK
},
132 { "nofile", RLIMIT_NOFILE
},
133 { "nproc", RLIMIT_NPROC
},
134 { "rss", RLIMIT_RSS
},
135 { "stack", RLIMIT_STACK
},
137 { "nice", RLIMIT_NICE
},
138 { "rtprio", RLIMIT_RTPRIO
},
139 { "msgqueue", RLIMIT_MSGQUEUE
},
140 { "sigpending", RLIMIT_SIGPENDING
},
145 static void closefd(int fd
)
147 if (fd
> STDERR_FILENO
)
152 instance_limits(const char *limit
, const char *value
)
156 unsigned long cur
, max
;
158 for (i
= 0; rlimit_names
[i
].name
!= NULL
; i
++) {
159 if (strcmp(rlimit_names
[i
].name
, limit
))
161 if (!strcmp(value
, "unlimited")) {
162 rlim
.rlim_cur
= RLIM_INFINITY
;
163 rlim
.rlim_max
= RLIM_INFINITY
;
165 if (getrlimit(rlimit_names
[i
].resource
, &rlim
))
171 if (sscanf(value
, "%lu %lu", &cur
, &max
) < 1)
178 setrlimit(rlimit_names
[i
].resource
, &rlim
);
184 jail_run(struct service_instance
*in
, char **argv
)
186 struct blobmsg_list_node
*var
;
187 struct jail
*jail
= &in
->jail
;
190 argv
[argc
++] = "/sbin/ujail";
194 argv
[argc
++] = jail
->name
;
197 if (jail
->hostname
) {
199 argv
[argc
++] = jail
->hostname
;
204 argv
[argc
++] = in
->seccomp
;
207 if (in
->no_new_privs
)
225 blobmsg_list_for_each(&jail
->mount
, var
) {
226 const char *type
= blobmsg_data(var
->data
);
232 argv
[argc
++] = (char *) blobmsg_name(var
->data
);
241 instance_removepid(struct service_instance
*in
) {
244 if (unlink(in
->pidfile
)) {
245 ERROR("Failed to removed pidfile: %s: %m\n", in
->pidfile
);
252 instance_writepid(struct service_instance
*in
)
259 _pidfile
= fopen(in
->pidfile
, "w");
260 if (_pidfile
== NULL
) {
261 ERROR("failed to open pidfile for writing: %s: %m", in
->pidfile
);
264 if (fprintf(_pidfile
, "%d\n", in
->proc
.pid
) < 0) {
265 ERROR("failed to write pidfile: %s: %m", in
->pidfile
);
269 if (fclose(_pidfile
)) {
270 ERROR("failed to close pidfile: %s: %m", in
->pidfile
);
278 instance_run(struct service_instance
*in
, int _stdout
, int _stderr
)
280 struct blobmsg_list_node
*var
;
281 struct blob_attr
*cur
;
283 int argc
= 1; /* NULL terminated */
285 bool seccomp
= !in
->trace
&& !in
->has_jail
&& in
->seccomp
;
286 bool setlbf
= _stdout
>= 0;
289 setpriority(PRIO_PROCESS
, 0, in
->nice
);
291 blobmsg_for_each_attr(cur
, in
->command
, rem
)
294 blobmsg_list_for_each(&in
->env
, var
)
295 setenv(blobmsg_name(var
->data
), blobmsg_data(var
->data
), 1);
298 setenv("SECCOMP_FILE", in
->seccomp
, 1);
301 setenv("LD_PRELOAD", "/lib/libsetlbf.so", 1);
303 blobmsg_list_for_each(&in
->limits
, var
)
304 instance_limits(blobmsg_name(var
->data
), blobmsg_data(var
->data
));
306 if (in
->trace
|| seccomp
)
309 argv
= alloca(sizeof(char *) * (argc
+ in
->jail
.argc
));
312 #ifdef SECCOMP_SUPPORT
314 argv
[argc
++] = "/sbin/utrace";
316 argv
[argc
++] = "/sbin/seccomp-trace";
318 if (in
->trace
|| seccomp
)
319 ULOG_WARN("Seccomp support for %s::%s not available\n", in
->srv
->name
, in
->name
);
323 argc
= jail_run(in
, argv
);
325 blobmsg_for_each_attr(cur
, in
->command
, rem
)
326 argv
[argc
++] = blobmsg_data(cur
);
330 _stdin
= open("/dev/null", O_RDONLY
);
333 _stdout
= open("/dev/null", O_WRONLY
);
336 _stderr
= open("/dev/null", O_WRONLY
);
339 dup2(_stdin
, STDIN_FILENO
);
343 dup2(_stdout
, STDOUT_FILENO
);
347 dup2(_stderr
, STDERR_FILENO
);
351 if (in
->user
&& in
->gid
&& initgroups(in
->user
, in
->gid
)) {
352 ERROR("failed to initgroups() for user %s: %m\n", in
->user
);
355 if (in
->gid
&& setgid(in
->gid
)) {
356 ERROR("failed to set group id %d: %m\n", in
->gid
);
359 if (in
->uid
&& setuid(in
->uid
)) {
360 ERROR("failed to set user id %d: %m\n", in
->uid
);
364 execvp(argv
[0], argv
);
369 instance_free_stdio(struct service_instance
*in
)
371 if (in
->_stdout
.fd
.fd
> -1) {
372 ustream_free(&in
->_stdout
.stream
);
373 close(in
->_stdout
.fd
.fd
);
374 in
->_stdout
.fd
.fd
= -1;
377 if (in
->_stderr
.fd
.fd
> -1) {
378 ustream_free(&in
->_stderr
.stream
);
379 close(in
->_stderr
.fd
.fd
);
380 in
->_stderr
.fd
.fd
= -1;
385 instance_start(struct service_instance
*in
)
388 int opipe
[2] = { -1, -1 };
389 int epipe
[2] = { -1, -1 };
391 if (!avl_is_empty(&in
->errors
.avl
)) {
392 LOG("Not starting instance %s::%s, an error was indicated\n", in
->srv
->name
, in
->name
);
397 LOG("Not starting instance %s::%s, command not set\n", in
->srv
->name
, in
->name
);
401 if (in
->proc
.pending
) {
407 instance_free_stdio(in
);
408 if (in
->_stdout
.fd
.fd
> -2) {
410 ULOG_WARN("pipe() failed: %m\n");
411 opipe
[0] = opipe
[1] = -1;
415 if (in
->_stderr
.fd
.fd
> -2) {
417 ULOG_WARN("pipe() failed: %m\n");
418 epipe
[0] = epipe
[1] = -1;
436 instance_run(in
, opipe
[1], epipe
[1]);
440 DEBUG(2, "Started instance %s::%s[%d]\n", in
->srv
->name
, in
->name
, pid
);
442 instance_writepid(in
);
443 clock_gettime(CLOCK_MONOTONIC
, &in
->start
);
444 uloop_process_add(&in
->proc
);
447 ustream_fd_init(&in
->_stdout
, opipe
[0]);
449 fcntl(opipe
[0], F_SETFD
, FD_CLOEXEC
);
453 ustream_fd_init(&in
->_stderr
, epipe
[0]);
455 fcntl(epipe
[0], F_SETFD
, FD_CLOEXEC
);
458 service_event("instance.start", in
->srv
->name
, in
->name
);
462 instance_stdio(struct ustream
*s
, int prio
, struct service_instance
*in
)
464 char *newline
, *str
, *arg0
, ident
[32];
467 arg0
= basename(blobmsg_data(blobmsg_data(in
->command
)));
468 snprintf(ident
, sizeof(ident
), "%s[%d]", arg0
, in
->proc
.pid
);
469 ulog_open(ULOG_SYSLOG
, LOG_DAEMON
, ident
);
472 str
= ustream_get_read_buf(s
, &len
);
476 newline
= memchr(str
, '\n', len
);
477 if (!newline
&& (s
->r
.buffer_len
!= len
))
482 len
= newline
+ 1 - str
;
484 ulog(prio
, "%s\n", str
);
486 ustream_consume(s
, len
);
489 ulog_open(ULOG_SYSLOG
, LOG_DAEMON
, "procd");
493 instance_stdout(struct ustream
*s
, int bytes
)
495 instance_stdio(s
, LOG_INFO
,
496 container_of(s
, struct service_instance
, _stdout
.stream
));
500 instance_stderr(struct ustream
*s
, int bytes
)
502 instance_stdio(s
, LOG_ERR
,
503 container_of(s
, struct service_instance
, _stderr
.stream
));
507 instance_timeout(struct uloop_timeout
*t
)
509 struct service_instance
*in
;
511 in
= container_of(t
, struct service_instance
, timeout
);
514 LOG("Instance %s::%s pid %d not stopped on SIGTERM, sending SIGKILL instead\n",
515 in
->srv
->name
, in
->name
, in
->proc
.pid
);
516 kill(in
->proc
.pid
, SIGKILL
);
517 } else if (in
->restart
|| in
->respawn
)
522 instance_delete(struct service_instance
*in
)
524 struct service
*s
= in
->srv
;
526 avl_delete(&s
->instances
.avl
, &in
->node
.avl
);
532 instance_exit(struct uloop_process
*p
, int ret
)
534 struct service_instance
*in
;
538 in
= container_of(p
, struct service_instance
, proc
);
540 clock_gettime(CLOCK_MONOTONIC
, &tp
);
541 runtime
= tp
.tv_sec
- in
->start
.tv_sec
;
543 DEBUG(2, "Instance %s::%s exit with error code %d after %ld seconds\n", in
->srv
->name
, in
->name
, ret
, runtime
);
545 uloop_timeout_cancel(&in
->timeout
);
546 service_event("instance.stop", in
->srv
->name
, in
->name
);
549 instance_removepid(in
);
554 } else if (in
->restart
) {
556 } else if (in
->respawn
) {
557 if (runtime
< in
->respawn_threshold
)
560 in
->respawn_count
= 0;
561 if (in
->respawn_count
> in
->respawn_retry
&& in
->respawn_retry
> 0 ) {
562 LOG("Instance %s::%s s in a crash loop %d crashes, %ld seconds since last crash\n",
563 in
->srv
->name
, in
->name
, in
->respawn_count
, runtime
);
564 in
->restart
= in
->respawn
= 0;
566 service_event("instance.fail", in
->srv
->name
, in
->name
);
568 service_event("instance.respawn", in
->srv
->name
, in
->name
);
569 uloop_timeout_set(&in
->timeout
, in
->respawn_timeout
* 1000);
575 instance_stop(struct service_instance
*in
, bool halt
)
577 if (!in
->proc
.pending
) {
583 in
->restart
= in
->respawn
= false;
584 kill(in
->proc
.pid
, SIGTERM
);
585 uloop_timeout_set(&in
->timeout
, in
->term_timeout
* 1000);
589 instance_restart(struct service_instance
*in
)
591 if (!in
->proc
.pending
)
594 if (in
->reload_signal
) {
595 kill(in
->proc
.pid
, in
->reload_signal
);
601 kill(in
->proc
.pid
, SIGTERM
);
602 uloop_timeout_set(&in
->timeout
, in
->term_timeout
* 1000);
605 static bool string_changed(const char *a
, const char *b
)
607 return !((!a
&& !b
) || (a
&& b
&& !strcmp(a
, b
)));
611 instance_config_changed(struct service_instance
*in
, struct service_instance
*in_new
)
616 if (!blob_attr_equal(in
->command
, in_new
->command
))
619 if (!blobmsg_list_equal(&in
->env
, &in_new
->env
))
622 if (!blobmsg_list_equal(&in
->netdev
, &in_new
->netdev
))
625 if (!blobmsg_list_equal(&in
->file
, &in_new
->file
))
628 if (in
->nice
!= in_new
->nice
)
631 if (string_changed(in
->user
, in_new
->user
))
634 if (in
->uid
!= in_new
->uid
)
637 if (in
->gid
!= in_new
->gid
)
640 if (string_changed(in
->pidfile
, in_new
->pidfile
))
643 if (in
->respawn_retry
!= in_new
->respawn_retry
)
645 if (in
->respawn_threshold
!= in_new
->respawn_threshold
)
647 if (in
->respawn_timeout
!= in_new
->respawn_timeout
)
650 if ((!in
->seccomp
&& in_new
->seccomp
) ||
651 (in
->seccomp
&& !in_new
->seccomp
) ||
652 (in
->seccomp
&& in_new
->seccomp
&& strcmp(in
->seccomp
, in_new
->seccomp
)))
655 if (!blobmsg_list_equal(&in
->limits
, &in_new
->limits
))
658 if (!blobmsg_list_equal(&in
->jail
.mount
, &in_new
->jail
.mount
))
661 if (!blobmsg_list_equal(&in
->errors
, &in_new
->errors
))
668 instance_netdev_cmp(struct blobmsg_list_node
*l1
, struct blobmsg_list_node
*l2
)
670 struct instance_netdev
*n1
= container_of(l1
, struct instance_netdev
, node
);
671 struct instance_netdev
*n2
= container_of(l2
, struct instance_netdev
, node
);
673 return n1
->ifindex
== n2
->ifindex
;
677 instance_netdev_update(struct blobmsg_list_node
*l
)
679 struct instance_netdev
*n
= container_of(l
, struct instance_netdev
, node
);
681 n
->ifindex
= if_nametoindex(n
->node
.avl
.key
);
685 instance_file_cmp(struct blobmsg_list_node
*l1
, struct blobmsg_list_node
*l2
)
687 struct instance_file
*f1
= container_of(l1
, struct instance_file
, node
);
688 struct instance_file
*f2
= container_of(l2
, struct instance_file
, node
);
690 return !memcmp(f1
->md5
, f2
->md5
, sizeof(f1
->md5
));
694 instance_file_update(struct blobmsg_list_node
*l
)
696 struct instance_file
*f
= container_of(l
, struct instance_file
, node
);
701 memset(f
->md5
, 0, sizeof(f
->md5
));
703 fd
= open(l
->avl
.key
, O_RDONLY
);
709 len
= read(fd
, buf
, sizeof(buf
));
719 md5_hash(buf
, len
, &md5
);
722 md5_end(f
->md5
, &md5
);
727 instance_fill_any(struct blobmsg_list
*l
, struct blob_attr
*cur
)
732 blobmsg_list_fill(l
, blobmsg_data(cur
), blobmsg_data_len(cur
), false);
736 instance_fill_array(struct blobmsg_list
*l
, struct blob_attr
*cur
, blobmsg_update_cb cb
, bool array
)
738 struct blobmsg_list_node
*node
;
743 if (!blobmsg_check_attr_list(cur
, BLOBMSG_TYPE_STRING
))
746 blobmsg_list_fill(l
, blobmsg_data(cur
), blobmsg_data_len(cur
), array
);
748 blobmsg_list_for_each(l
, node
)
755 instance_jail_parse(struct service_instance
*in
, struct blob_attr
*attr
)
757 struct blob_attr
*tb
[__JAIL_ATTR_MAX
];
758 struct jail
*jail
= &in
->jail
;
761 if (stat("/sbin/ujail", &s
))
764 blobmsg_parse(jail_attr
, __JAIL_ATTR_MAX
, tb
,
765 blobmsg_data(attr
), blobmsg_data_len(attr
));
769 if (tb
[JAIL_ATTR_NAME
]) {
770 jail
->name
= blobmsg_get_string(tb
[JAIL_ATTR_NAME
]);
773 if (tb
[JAIL_ATTR_HOSTNAME
]) {
774 jail
->hostname
= blobmsg_get_string(tb
[JAIL_ATTR_HOSTNAME
]);
777 if (tb
[JAIL_ATTR_PROCFS
]) {
778 jail
->procfs
= blobmsg_get_bool(tb
[JAIL_ATTR_PROCFS
]);
781 if (tb
[JAIL_ATTR_SYSFS
]) {
782 jail
->sysfs
= blobmsg_get_bool(tb
[JAIL_ATTR_SYSFS
]);
785 if (tb
[JAIL_ATTR_UBUS
]) {
786 jail
->ubus
= blobmsg_get_bool(tb
[JAIL_ATTR_UBUS
]);
789 if (tb
[JAIL_ATTR_LOG
]) {
790 jail
->log
= blobmsg_get_bool(tb
[JAIL_ATTR_LOG
]);
793 if (tb
[JAIL_ATTR_RONLY
]) {
794 jail
->ronly
= blobmsg_get_bool(tb
[JAIL_ATTR_RONLY
]);
797 if (tb
[JAIL_ATTR_MOUNT
]) {
798 struct blob_attr
*cur
;
801 blobmsg_for_each_attr(cur
, tb
[JAIL_ATTR_MOUNT
], rem
)
803 instance_fill_array(&jail
->mount
, tb
[JAIL_ATTR_MOUNT
], NULL
, false);
812 instance_config_parse_command(struct service_instance
*in
, struct blob_attr
**tb
)
814 struct blob_attr
*cur
, *cur2
;
818 cur
= tb
[INSTANCE_ATTR_COMMAND
];
824 if (!blobmsg_check_attr_list(cur
, BLOBMSG_TYPE_STRING
))
827 blobmsg_for_each_attr(cur2
, cur
, rem
) {
837 instance_config_parse(struct service_instance
*in
)
839 struct blob_attr
*tb
[__INSTANCE_ATTR_MAX
];
840 struct blob_attr
*cur
, *cur2
;
843 blobmsg_parse(instance_attr
, __INSTANCE_ATTR_MAX
, tb
,
844 blobmsg_data(in
->config
), blobmsg_data_len(in
->config
));
846 if (!instance_config_parse_command(in
, tb
))
849 if (tb
[INSTANCE_ATTR_TERMTIMEOUT
])
850 in
->term_timeout
= blobmsg_get_u32(tb
[INSTANCE_ATTR_TERMTIMEOUT
]);
851 if (tb
[INSTANCE_ATTR_RESPAWN
]) {
853 uint32_t vals
[3] = { 3600, 5, 5};
855 blobmsg_for_each_attr(cur2
, tb
[INSTANCE_ATTR_RESPAWN
], rem
) {
856 if ((i
>= 3) && (blobmsg_type(cur2
) == BLOBMSG_TYPE_STRING
))
858 vals
[i
] = atoi(blobmsg_get_string(cur2
));
862 in
->respawn_count
= 0;
863 in
->respawn_threshold
= vals
[0];
864 in
->respawn_timeout
= vals
[1];
865 in
->respawn_retry
= vals
[2];
867 if (tb
[INSTANCE_ATTR_TRIGGER
]) {
868 in
->trigger
= tb
[INSTANCE_ATTR_TRIGGER
];
869 trigger_add(in
->trigger
, in
);
872 if (tb
[INSTANCE_ATTR_WATCH
]) {
873 blobmsg_for_each_attr(cur2
, tb
[INSTANCE_ATTR_WATCH
], rem
) {
874 if (blobmsg_type(cur2
) != BLOBMSG_TYPE_STRING
)
876 DEBUG(3, "watch for %s\n", blobmsg_get_string(cur2
));
877 watch_add(blobmsg_get_string(cur2
), in
);
881 if ((cur
= tb
[INSTANCE_ATTR_NICE
])) {
882 in
->nice
= (int8_t) blobmsg_get_u32(cur
);
883 if (in
->nice
< -20 || in
->nice
> 20)
887 if (tb
[INSTANCE_ATTR_USER
]) {
888 const char *user
= blobmsg_get_string(tb
[INSTANCE_ATTR_USER
]);
889 struct passwd
*p
= getpwnam(user
);
891 in
->user
= strdup(user
);
897 if (tb
[INSTANCE_ATTR_TRACE
])
898 in
->trace
= blobmsg_get_bool(tb
[INSTANCE_ATTR_TRACE
]);
900 if (tb
[INSTANCE_ATTR_NO_NEW_PRIVS
])
901 in
->no_new_privs
= blobmsg_get_bool(tb
[INSTANCE_ATTR_NO_NEW_PRIVS
]);
903 if (!in
->trace
&& tb
[INSTANCE_ATTR_SECCOMP
])
904 in
->seccomp
= blobmsg_get_string(tb
[INSTANCE_ATTR_SECCOMP
]);
906 if (tb
[INSTANCE_ATTR_PIDFILE
]) {
907 char *pidfile
= blobmsg_get_string(tb
[INSTANCE_ATTR_PIDFILE
]);
909 in
->pidfile
= pidfile
;
912 if (tb
[INSTANCE_ATTR_RELOADSIG
])
913 in
->reload_signal
= blobmsg_get_u32(tb
[INSTANCE_ATTR_RELOADSIG
]);
915 if (!in
->trace
&& tb
[INSTANCE_ATTR_JAIL
])
916 in
->has_jail
= instance_jail_parse(in
, tb
[INSTANCE_ATTR_JAIL
]);
918 if (tb
[INSTANCE_ATTR_STDOUT
] && blobmsg_get_bool(tb
[INSTANCE_ATTR_STDOUT
]))
919 in
->_stdout
.fd
.fd
= -1;
921 if (tb
[INSTANCE_ATTR_STDERR
] && blobmsg_get_bool(tb
[INSTANCE_ATTR_STDERR
]))
922 in
->_stderr
.fd
.fd
= -1;
924 instance_fill_any(&in
->data
, tb
[INSTANCE_ATTR_DATA
]);
926 if (!instance_fill_array(&in
->env
, tb
[INSTANCE_ATTR_ENV
], NULL
, false))
929 if (!instance_fill_array(&in
->netdev
, tb
[INSTANCE_ATTR_NETDEV
], instance_netdev_update
, true))
932 if (!instance_fill_array(&in
->file
, tb
[INSTANCE_ATTR_FILE
], instance_file_update
, true))
935 if (!instance_fill_array(&in
->limits
, tb
[INSTANCE_ATTR_LIMITS
], NULL
, false))
938 if (!instance_fill_array(&in
->errors
, tb
[INSTANCE_ATTR_ERROR
], NULL
, true))
945 instance_config_cleanup(struct service_instance
*in
)
947 blobmsg_list_free(&in
->env
);
948 blobmsg_list_free(&in
->data
);
949 blobmsg_list_free(&in
->netdev
);
950 blobmsg_list_free(&in
->file
);
951 blobmsg_list_free(&in
->limits
);
952 blobmsg_list_free(&in
->errors
);
953 blobmsg_list_free(&in
->jail
.mount
);
957 instance_config_move(struct service_instance
*in
, struct service_instance
*in_src
)
959 instance_config_cleanup(in
);
960 blobmsg_list_move(&in
->env
, &in_src
->env
);
961 blobmsg_list_move(&in
->data
, &in_src
->data
);
962 blobmsg_list_move(&in
->netdev
, &in_src
->netdev
);
963 blobmsg_list_move(&in
->file
, &in_src
->file
);
964 blobmsg_list_move(&in
->limits
, &in_src
->limits
);
965 blobmsg_list_move(&in
->errors
, &in_src
->errors
);
966 blobmsg_list_move(&in
->jail
.mount
, &in_src
->jail
.mount
);
967 in
->trigger
= in_src
->trigger
;
968 in
->command
= in_src
->command
;
969 in
->pidfile
= in_src
->pidfile
;
970 in
->respawn
= in_src
->respawn
;
971 in
->respawn_retry
= in_src
->respawn_retry
;
972 in
->respawn_threshold
= in_src
->respawn_threshold
;
973 in
->respawn_timeout
= in_src
->respawn_timeout
;
974 in
->name
= in_src
->name
;
975 in
->trace
= in_src
->trace
;
976 in
->seccomp
= in_src
->seccomp
;
977 in
->node
.avl
.key
= in_src
->node
.avl
.key
;
980 in
->config
= in_src
->config
;
981 in_src
->config
= NULL
;
985 instance_update(struct service_instance
*in
, struct service_instance
*in_new
)
987 bool changed
= instance_config_changed(in
, in_new
);
988 bool running
= in
->proc
.pending
;
989 bool stopping
= in
->halt
;
991 if (!running
|| stopping
) {
992 instance_config_move(in
, in_new
);
996 instance_restart(in
);
997 instance_config_move(in
, in_new
);
998 /* restart happens in the child callback handler */
1003 instance_free(struct service_instance
*in
)
1005 instance_free_stdio(in
);
1006 uloop_process_delete(&in
->proc
);
1007 uloop_timeout_cancel(&in
->timeout
);
1010 instance_config_cleanup(in
);
1017 instance_init(struct service_instance
*in
, struct service
*s
, struct blob_attr
*config
)
1019 config
= blob_memdup(config
);
1021 in
->name
= blobmsg_name(config
);
1022 in
->config
= config
;
1023 in
->timeout
.cb
= instance_timeout
;
1024 in
->proc
.cb
= instance_exit
;
1025 in
->term_timeout
= 5;
1027 in
->_stdout
.fd
.fd
= -2;
1028 in
->_stdout
.stream
.string_data
= true;
1029 in
->_stdout
.stream
.notify_read
= instance_stdout
;
1031 in
->_stderr
.fd
.fd
= -2;
1032 in
->_stderr
.stream
.string_data
= true;
1033 in
->_stderr
.stream
.notify_read
= instance_stderr
;
1035 blobmsg_list_init(&in
->netdev
, struct instance_netdev
, node
, instance_netdev_cmp
);
1036 blobmsg_list_init(&in
->file
, struct instance_file
, node
, instance_file_cmp
);
1037 blobmsg_list_simple_init(&in
->env
);
1038 blobmsg_list_simple_init(&in
->data
);
1039 blobmsg_list_simple_init(&in
->limits
);
1040 blobmsg_list_simple_init(&in
->errors
);
1041 blobmsg_list_simple_init(&in
->jail
.mount
);
1042 in
->valid
= instance_config_parse(in
);
1045 void instance_dump(struct blob_buf
*b
, struct service_instance
*in
, int verbose
)
1052 i
= blobmsg_open_table(b
, in
->name
);
1053 blobmsg_add_u8(b
, "running", in
->proc
.pending
);
1054 if (in
->proc
.pending
)
1055 blobmsg_add_u32(b
, "pid", in
->proc
.pid
);
1057 blobmsg_add_blob(b
, in
->command
);
1058 blobmsg_add_u32(b
, "term_timeout", in
->term_timeout
);
1060 if (!avl_is_empty(&in
->errors
.avl
)) {
1061 struct blobmsg_list_node
*var
;
1062 void *e
= blobmsg_open_array(b
, "errors");
1063 blobmsg_list_for_each(&in
->errors
, var
)
1064 blobmsg_add_string(b
, NULL
, blobmsg_data(var
->data
));
1065 blobmsg_close_table(b
, e
);
1068 if (!avl_is_empty(&in
->env
.avl
)) {
1069 struct blobmsg_list_node
*var
;
1070 void *e
= blobmsg_open_table(b
, "env");
1071 blobmsg_list_for_each(&in
->env
, var
)
1072 blobmsg_add_string(b
, blobmsg_name(var
->data
), blobmsg_data(var
->data
));
1073 blobmsg_close_table(b
, e
);
1076 if (!avl_is_empty(&in
->data
.avl
)) {
1077 struct blobmsg_list_node
*var
;
1078 void *e
= blobmsg_open_table(b
, "data");
1079 blobmsg_list_for_each(&in
->data
, var
)
1080 blobmsg_add_blob(b
, var
->data
);
1081 blobmsg_close_table(b
, e
);
1084 if (!avl_is_empty(&in
->limits
.avl
)) {
1085 struct blobmsg_list_node
*var
;
1086 void *e
= blobmsg_open_table(b
, "limits");
1087 blobmsg_list_for_each(&in
->limits
, var
)
1088 blobmsg_add_string(b
, blobmsg_name(var
->data
), blobmsg_data(var
->data
));
1089 blobmsg_close_table(b
, e
);
1092 if (in
->reload_signal
)
1093 blobmsg_add_u32(b
, "reload_signal", in
->reload_signal
);
1096 void *r
= blobmsg_open_table(b
, "respawn");
1097 blobmsg_add_u32(b
, "threshold", in
->respawn_threshold
);
1098 blobmsg_add_u32(b
, "timeout", in
->respawn_timeout
);
1099 blobmsg_add_u32(b
, "retry", in
->respawn_retry
);
1100 blobmsg_close_table(b
, r
);
1104 blobmsg_add_u8(b
, "trace", true);
1106 if (in
->no_new_privs
)
1107 blobmsg_add_u8(b
, "no_new_privs", true);
1110 blobmsg_add_string(b
, "seccomp", in
->seccomp
);
1113 blobmsg_add_string(b
, "pidfile", in
->pidfile
);
1116 void *r
= blobmsg_open_table(b
, "jail");
1118 blobmsg_add_string(b
, "name", in
->jail
.name
);
1119 if (in
->jail
.hostname
)
1120 blobmsg_add_string(b
, "hostname", in
->jail
.hostname
);
1121 blobmsg_add_u8(b
, "procfs", in
->jail
.procfs
);
1122 blobmsg_add_u8(b
, "sysfs", in
->jail
.sysfs
);
1123 blobmsg_add_u8(b
, "ubus", in
->jail
.ubus
);
1124 blobmsg_add_u8(b
, "log", in
->jail
.log
);
1125 blobmsg_add_u8(b
, "ronly", in
->jail
.ronly
);
1126 blobmsg_close_table(b
, r
);
1127 if (!avl_is_empty(&in
->jail
.mount
.avl
)) {
1128 struct blobmsg_list_node
*var
;
1129 void *e
= blobmsg_open_table(b
, "mount");
1130 blobmsg_list_for_each(&in
->jail
.mount
, var
)
1131 blobmsg_add_string(b
, blobmsg_name(var
->data
), blobmsg_data(var
->data
));
1132 blobmsg_close_table(b
, e
);
1136 if (verbose
&& in
->trigger
)
1137 blobmsg_add_blob(b
, in
->trigger
);
1139 blobmsg_close_table(b
, i
);