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_exit(struct uloop_process
*p
, int ret
)
524 struct service_instance
*in
;
528 in
= container_of(p
, struct service_instance
, proc
);
530 clock_gettime(CLOCK_MONOTONIC
, &tp
);
531 runtime
= tp
.tv_sec
- in
->start
.tv_sec
;
533 DEBUG(2, "Instance %s::%s exit with error code %d after %ld seconds\n", in
->srv
->name
, in
->name
, ret
, runtime
);
535 uloop_timeout_cancel(&in
->timeout
);
536 service_event("instance.stop", in
->srv
->name
, in
->name
);
539 instance_removepid(in
);
543 struct service
*s
= in
->srv
;
545 avl_delete(&s
->instances
.avl
, &in
->node
.avl
);
549 } else if (in
->restart
) {
551 } else if (in
->respawn
) {
552 if (runtime
< in
->respawn_threshold
)
555 in
->respawn_count
= 0;
556 if (in
->respawn_count
> in
->respawn_retry
&& in
->respawn_retry
> 0 ) {
557 LOG("Instance %s::%s s in a crash loop %d crashes, %ld seconds since last crash\n",
558 in
->srv
->name
, in
->name
, in
->respawn_count
, runtime
);
559 in
->restart
= in
->respawn
= 0;
561 service_event("instance.fail", in
->srv
->name
, in
->name
);
563 service_event("instance.respawn", in
->srv
->name
, in
->name
);
564 uloop_timeout_set(&in
->timeout
, in
->respawn_timeout
* 1000);
570 instance_stop(struct service_instance
*in
, bool halt
)
572 if (!in
->proc
.pending
)
575 in
->restart
= in
->respawn
= false;
576 kill(in
->proc
.pid
, SIGTERM
);
577 uloop_timeout_set(&in
->timeout
, in
->term_timeout
* 1000);
581 instance_restart(struct service_instance
*in
)
583 if (!in
->proc
.pending
)
586 if (in
->reload_signal
) {
587 kill(in
->proc
.pid
, in
->reload_signal
);
593 kill(in
->proc
.pid
, SIGTERM
);
594 uloop_timeout_set(&in
->timeout
, in
->term_timeout
* 1000);
597 static bool string_changed(const char *a
, const char *b
)
599 return !((!a
&& !b
) || (a
&& b
&& !strcmp(a
, b
)));
603 instance_config_changed(struct service_instance
*in
, struct service_instance
*in_new
)
608 if (!blob_attr_equal(in
->command
, in_new
->command
))
611 if (!blobmsg_list_equal(&in
->env
, &in_new
->env
))
614 if (!blobmsg_list_equal(&in
->netdev
, &in_new
->netdev
))
617 if (!blobmsg_list_equal(&in
->file
, &in_new
->file
))
620 if (in
->nice
!= in_new
->nice
)
623 if (string_changed(in
->user
, in_new
->user
))
626 if (in
->uid
!= in_new
->uid
)
629 if (in
->gid
!= in_new
->gid
)
632 if (string_changed(in
->pidfile
, in_new
->pidfile
))
635 if (in
->respawn_retry
!= in_new
->respawn_retry
)
637 if (in
->respawn_threshold
!= in_new
->respawn_threshold
)
639 if (in
->respawn_timeout
!= in_new
->respawn_timeout
)
642 if (!blobmsg_list_equal(&in
->limits
, &in_new
->limits
))
645 if (!blobmsg_list_equal(&in
->jail
.mount
, &in_new
->jail
.mount
))
648 if (!blobmsg_list_equal(&in
->errors
, &in_new
->errors
))
655 instance_netdev_cmp(struct blobmsg_list_node
*l1
, struct blobmsg_list_node
*l2
)
657 struct instance_netdev
*n1
= container_of(l1
, struct instance_netdev
, node
);
658 struct instance_netdev
*n2
= container_of(l2
, struct instance_netdev
, node
);
660 return n1
->ifindex
== n2
->ifindex
;
664 instance_netdev_update(struct blobmsg_list_node
*l
)
666 struct instance_netdev
*n
= container_of(l
, struct instance_netdev
, node
);
668 n
->ifindex
= if_nametoindex(n
->node
.avl
.key
);
672 instance_file_cmp(struct blobmsg_list_node
*l1
, struct blobmsg_list_node
*l2
)
674 struct instance_file
*f1
= container_of(l1
, struct instance_file
, node
);
675 struct instance_file
*f2
= container_of(l2
, struct instance_file
, node
);
677 return !memcmp(f1
->md5
, f2
->md5
, sizeof(f1
->md5
));
681 instance_file_update(struct blobmsg_list_node
*l
)
683 struct instance_file
*f
= container_of(l
, struct instance_file
, node
);
688 memset(f
->md5
, 0, sizeof(f
->md5
));
690 fd
= open(l
->avl
.key
, O_RDONLY
);
696 len
= read(fd
, buf
, sizeof(buf
));
706 md5_hash(buf
, len
, &md5
);
709 md5_end(f
->md5
, &md5
);
714 instance_fill_any(struct blobmsg_list
*l
, struct blob_attr
*cur
)
719 blobmsg_list_fill(l
, blobmsg_data(cur
), blobmsg_data_len(cur
), false);
723 instance_fill_array(struct blobmsg_list
*l
, struct blob_attr
*cur
, blobmsg_update_cb cb
, bool array
)
725 struct blobmsg_list_node
*node
;
730 if (!blobmsg_check_attr_list(cur
, BLOBMSG_TYPE_STRING
))
733 blobmsg_list_fill(l
, blobmsg_data(cur
), blobmsg_data_len(cur
), array
);
735 blobmsg_list_for_each(l
, node
)
742 instance_jail_parse(struct service_instance
*in
, struct blob_attr
*attr
)
744 struct blob_attr
*tb
[__JAIL_ATTR_MAX
];
745 struct jail
*jail
= &in
->jail
;
748 if (stat("/sbin/ujail", &s
))
751 blobmsg_parse(jail_attr
, __JAIL_ATTR_MAX
, tb
,
752 blobmsg_data(attr
), blobmsg_data_len(attr
));
756 if (tb
[JAIL_ATTR_NAME
]) {
757 jail
->name
= blobmsg_get_string(tb
[JAIL_ATTR_NAME
]);
760 if (tb
[JAIL_ATTR_HOSTNAME
]) {
761 jail
->hostname
= blobmsg_get_string(tb
[JAIL_ATTR_HOSTNAME
]);
764 if (tb
[JAIL_ATTR_PROCFS
]) {
765 jail
->procfs
= blobmsg_get_bool(tb
[JAIL_ATTR_PROCFS
]);
768 if (tb
[JAIL_ATTR_SYSFS
]) {
769 jail
->sysfs
= blobmsg_get_bool(tb
[JAIL_ATTR_SYSFS
]);
772 if (tb
[JAIL_ATTR_UBUS
]) {
773 jail
->ubus
= blobmsg_get_bool(tb
[JAIL_ATTR_UBUS
]);
776 if (tb
[JAIL_ATTR_LOG
]) {
777 jail
->log
= blobmsg_get_bool(tb
[JAIL_ATTR_LOG
]);
780 if (tb
[JAIL_ATTR_RONLY
]) {
781 jail
->ronly
= blobmsg_get_bool(tb
[JAIL_ATTR_RONLY
]);
784 if (tb
[JAIL_ATTR_MOUNT
]) {
785 struct blob_attr
*cur
;
788 blobmsg_for_each_attr(cur
, tb
[JAIL_ATTR_MOUNT
], rem
)
790 instance_fill_array(&jail
->mount
, tb
[JAIL_ATTR_MOUNT
], NULL
, false);
799 instance_config_parse_command(struct service_instance
*in
, struct blob_attr
**tb
)
801 struct blob_attr
*cur
, *cur2
;
805 cur
= tb
[INSTANCE_ATTR_COMMAND
];
811 if (!blobmsg_check_attr_list(cur
, BLOBMSG_TYPE_STRING
))
814 blobmsg_for_each_attr(cur2
, cur
, rem
) {
824 instance_config_parse(struct service_instance
*in
)
826 struct blob_attr
*tb
[__INSTANCE_ATTR_MAX
];
827 struct blob_attr
*cur
, *cur2
;
830 blobmsg_parse(instance_attr
, __INSTANCE_ATTR_MAX
, tb
,
831 blobmsg_data(in
->config
), blobmsg_data_len(in
->config
));
833 if (!instance_config_parse_command(in
, tb
))
836 if (tb
[INSTANCE_ATTR_TERMTIMEOUT
])
837 in
->term_timeout
= blobmsg_get_u32(tb
[INSTANCE_ATTR_TERMTIMEOUT
]);
838 if (tb
[INSTANCE_ATTR_RESPAWN
]) {
840 uint32_t vals
[3] = { 3600, 5, 5};
842 blobmsg_for_each_attr(cur2
, tb
[INSTANCE_ATTR_RESPAWN
], rem
) {
843 if ((i
>= 3) && (blobmsg_type(cur2
) == BLOBMSG_TYPE_STRING
))
845 vals
[i
] = atoi(blobmsg_get_string(cur2
));
849 in
->respawn_count
= 0;
850 in
->respawn_threshold
= vals
[0];
851 in
->respawn_timeout
= vals
[1];
852 in
->respawn_retry
= vals
[2];
854 if (tb
[INSTANCE_ATTR_TRIGGER
]) {
855 in
->trigger
= tb
[INSTANCE_ATTR_TRIGGER
];
856 trigger_add(in
->trigger
, in
);
859 if (tb
[INSTANCE_ATTR_WATCH
]) {
860 blobmsg_for_each_attr(cur2
, tb
[INSTANCE_ATTR_WATCH
], rem
) {
861 if (blobmsg_type(cur2
) != BLOBMSG_TYPE_STRING
)
863 DEBUG(3, "watch for %s\n", blobmsg_get_string(cur2
));
864 watch_add(blobmsg_get_string(cur2
), in
);
868 if ((cur
= tb
[INSTANCE_ATTR_NICE
])) {
869 in
->nice
= (int8_t) blobmsg_get_u32(cur
);
870 if (in
->nice
< -20 || in
->nice
> 20)
874 if (tb
[INSTANCE_ATTR_USER
]) {
875 const char *user
= blobmsg_get_string(tb
[INSTANCE_ATTR_USER
]);
876 struct passwd
*p
= getpwnam(user
);
878 in
->user
= strdup(user
);
884 if (tb
[INSTANCE_ATTR_TRACE
])
885 in
->trace
= blobmsg_get_bool(tb
[INSTANCE_ATTR_TRACE
]);
887 if (tb
[INSTANCE_ATTR_NO_NEW_PRIVS
])
888 in
->no_new_privs
= blobmsg_get_bool(tb
[INSTANCE_ATTR_NO_NEW_PRIVS
]);
890 if (!in
->trace
&& tb
[INSTANCE_ATTR_SECCOMP
])
891 in
->seccomp
= blobmsg_get_string(tb
[INSTANCE_ATTR_SECCOMP
]);
893 if (tb
[INSTANCE_ATTR_PIDFILE
]) {
894 char *pidfile
= blobmsg_get_string(tb
[INSTANCE_ATTR_PIDFILE
]);
896 in
->pidfile
= pidfile
;
899 if (tb
[INSTANCE_ATTR_RELOADSIG
])
900 in
->reload_signal
= blobmsg_get_u32(tb
[INSTANCE_ATTR_RELOADSIG
]);
902 if (!in
->trace
&& tb
[INSTANCE_ATTR_JAIL
])
903 in
->has_jail
= instance_jail_parse(in
, tb
[INSTANCE_ATTR_JAIL
]);
905 if (tb
[INSTANCE_ATTR_STDOUT
] && blobmsg_get_bool(tb
[INSTANCE_ATTR_STDOUT
]))
906 in
->_stdout
.fd
.fd
= -1;
908 if (tb
[INSTANCE_ATTR_STDERR
] && blobmsg_get_bool(tb
[INSTANCE_ATTR_STDERR
]))
909 in
->_stderr
.fd
.fd
= -1;
911 instance_fill_any(&in
->data
, tb
[INSTANCE_ATTR_DATA
]);
913 if (!instance_fill_array(&in
->env
, tb
[INSTANCE_ATTR_ENV
], NULL
, false))
916 if (!instance_fill_array(&in
->netdev
, tb
[INSTANCE_ATTR_NETDEV
], instance_netdev_update
, true))
919 if (!instance_fill_array(&in
->file
, tb
[INSTANCE_ATTR_FILE
], instance_file_update
, true))
922 if (!instance_fill_array(&in
->limits
, tb
[INSTANCE_ATTR_LIMITS
], NULL
, false))
925 if (!instance_fill_array(&in
->errors
, tb
[INSTANCE_ATTR_ERROR
], NULL
, true))
932 instance_config_cleanup(struct service_instance
*in
)
934 blobmsg_list_free(&in
->env
);
935 blobmsg_list_free(&in
->data
);
936 blobmsg_list_free(&in
->netdev
);
937 blobmsg_list_free(&in
->file
);
938 blobmsg_list_free(&in
->limits
);
939 blobmsg_list_free(&in
->errors
);
940 blobmsg_list_free(&in
->jail
.mount
);
944 instance_config_move(struct service_instance
*in
, struct service_instance
*in_src
)
946 instance_config_cleanup(in
);
947 blobmsg_list_move(&in
->env
, &in_src
->env
);
948 blobmsg_list_move(&in
->data
, &in_src
->data
);
949 blobmsg_list_move(&in
->netdev
, &in_src
->netdev
);
950 blobmsg_list_move(&in
->file
, &in_src
->file
);
951 blobmsg_list_move(&in
->limits
, &in_src
->limits
);
952 blobmsg_list_move(&in
->errors
, &in_src
->errors
);
953 blobmsg_list_move(&in
->jail
.mount
, &in_src
->jail
.mount
);
954 in
->trigger
= in_src
->trigger
;
955 in
->command
= in_src
->command
;
956 in
->pidfile
= in_src
->pidfile
;
957 in
->respawn_retry
= in_src
->respawn_retry
;
958 in
->respawn_threshold
= in_src
->respawn_threshold
;
959 in
->respawn_timeout
= in_src
->respawn_timeout
;
960 in
->name
= in_src
->name
;
961 in
->trace
= in_src
->trace
;
962 in
->node
.avl
.key
= in_src
->node
.avl
.key
;
965 in
->config
= in_src
->config
;
966 in_src
->config
= NULL
;
970 instance_update(struct service_instance
*in
, struct service_instance
*in_new
)
972 bool changed
= instance_config_changed(in
, in_new
);
973 bool running
= in
->proc
.pending
;
974 bool stopping
= in
->halt
;
976 if (!running
|| stopping
) {
977 instance_config_move(in
, in_new
);
981 instance_restart(in
);
982 instance_config_move(in
, in_new
);
983 /* restart happens in the child callback handler */
988 instance_free(struct service_instance
*in
)
990 instance_free_stdio(in
);
991 uloop_process_delete(&in
->proc
);
992 uloop_timeout_cancel(&in
->timeout
);
995 instance_config_cleanup(in
);
1002 instance_init(struct service_instance
*in
, struct service
*s
, struct blob_attr
*config
)
1004 config
= blob_memdup(config
);
1006 in
->name
= blobmsg_name(config
);
1007 in
->config
= config
;
1008 in
->timeout
.cb
= instance_timeout
;
1009 in
->proc
.cb
= instance_exit
;
1010 in
->term_timeout
= 5;
1012 in
->_stdout
.fd
.fd
= -2;
1013 in
->_stdout
.stream
.string_data
= true;
1014 in
->_stdout
.stream
.notify_read
= instance_stdout
;
1016 in
->_stderr
.fd
.fd
= -2;
1017 in
->_stderr
.stream
.string_data
= true;
1018 in
->_stderr
.stream
.notify_read
= instance_stderr
;
1020 blobmsg_list_init(&in
->netdev
, struct instance_netdev
, node
, instance_netdev_cmp
);
1021 blobmsg_list_init(&in
->file
, struct instance_file
, node
, instance_file_cmp
);
1022 blobmsg_list_simple_init(&in
->env
);
1023 blobmsg_list_simple_init(&in
->data
);
1024 blobmsg_list_simple_init(&in
->limits
);
1025 blobmsg_list_simple_init(&in
->errors
);
1026 blobmsg_list_simple_init(&in
->jail
.mount
);
1027 in
->valid
= instance_config_parse(in
);
1030 void instance_dump(struct blob_buf
*b
, struct service_instance
*in
, int verbose
)
1037 i
= blobmsg_open_table(b
, in
->name
);
1038 blobmsg_add_u8(b
, "running", in
->proc
.pending
);
1039 if (in
->proc
.pending
)
1040 blobmsg_add_u32(b
, "pid", in
->proc
.pid
);
1042 blobmsg_add_blob(b
, in
->command
);
1043 blobmsg_add_u32(b
, "term_timeout", in
->term_timeout
);
1045 if (!avl_is_empty(&in
->errors
.avl
)) {
1046 struct blobmsg_list_node
*var
;
1047 void *e
= blobmsg_open_array(b
, "errors");
1048 blobmsg_list_for_each(&in
->errors
, var
)
1049 blobmsg_add_string(b
, NULL
, blobmsg_data(var
->data
));
1050 blobmsg_close_table(b
, e
);
1053 if (!avl_is_empty(&in
->env
.avl
)) {
1054 struct blobmsg_list_node
*var
;
1055 void *e
= blobmsg_open_table(b
, "env");
1056 blobmsg_list_for_each(&in
->env
, var
)
1057 blobmsg_add_string(b
, blobmsg_name(var
->data
), blobmsg_data(var
->data
));
1058 blobmsg_close_table(b
, e
);
1061 if (!avl_is_empty(&in
->data
.avl
)) {
1062 struct blobmsg_list_node
*var
;
1063 void *e
= blobmsg_open_table(b
, "data");
1064 blobmsg_list_for_each(&in
->data
, var
)
1065 blobmsg_add_blob(b
, var
->data
);
1066 blobmsg_close_table(b
, e
);
1069 if (!avl_is_empty(&in
->limits
.avl
)) {
1070 struct blobmsg_list_node
*var
;
1071 void *e
= blobmsg_open_table(b
, "limits");
1072 blobmsg_list_for_each(&in
->limits
, var
)
1073 blobmsg_add_string(b
, blobmsg_name(var
->data
), blobmsg_data(var
->data
));
1074 blobmsg_close_table(b
, e
);
1077 if (in
->reload_signal
)
1078 blobmsg_add_u32(b
, "reload_signal", in
->reload_signal
);
1081 void *r
= blobmsg_open_table(b
, "respawn");
1082 blobmsg_add_u32(b
, "threshold", in
->respawn_threshold
);
1083 blobmsg_add_u32(b
, "timeout", in
->respawn_timeout
);
1084 blobmsg_add_u32(b
, "retry", in
->respawn_retry
);
1085 blobmsg_close_table(b
, r
);
1089 blobmsg_add_u8(b
, "trace", true);
1091 if (in
->no_new_privs
)
1092 blobmsg_add_u8(b
, "no_new_privs", true);
1095 blobmsg_add_string(b
, "seccomp", in
->seccomp
);
1098 blobmsg_add_string(b
, "pidfile", in
->pidfile
);
1101 void *r
= blobmsg_open_table(b
, "jail");
1103 blobmsg_add_string(b
, "name", in
->jail
.name
);
1104 if (in
->jail
.hostname
)
1105 blobmsg_add_string(b
, "hostname", in
->jail
.hostname
);
1106 blobmsg_add_u8(b
, "procfs", in
->jail
.procfs
);
1107 blobmsg_add_u8(b
, "sysfs", in
->jail
.sysfs
);
1108 blobmsg_add_u8(b
, "ubus", in
->jail
.ubus
);
1109 blobmsg_add_u8(b
, "log", in
->jail
.log
);
1110 blobmsg_add_u8(b
, "ronly", in
->jail
.ronly
);
1111 blobmsg_close_table(b
, r
);
1112 if (!avl_is_empty(&in
->jail
.mount
.avl
)) {
1113 struct blobmsg_list_node
*var
;
1114 void *e
= blobmsg_open_table(b
, "mount");
1115 blobmsg_list_for_each(&in
->jail
.mount
, var
)
1116 blobmsg_add_string(b
, blobmsg_name(var
->data
), blobmsg_data(var
->data
));
1117 blobmsg_close_table(b
, e
);
1121 if (verbose
&& in
->trigger
)
1122 blobmsg_add_blob(b
, in
->trigger
);
1124 blobmsg_close_table(b
, i
);