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
,
52 INSTANCE_ATTR_NO_NEW_PRIVS
,
55 INSTANCE_ATTR_SECCOMP
,
56 INSTANCE_ATTR_PIDFILE
,
57 INSTANCE_ATTR_RELOADSIG
,
58 INSTANCE_ATTR_TERMTIMEOUT
,
62 static const struct blobmsg_policy instance_attr
[__INSTANCE_ATTR_MAX
] = {
63 [INSTANCE_ATTR_COMMAND
] = { "command", BLOBMSG_TYPE_ARRAY
},
64 [INSTANCE_ATTR_ENV
] = { "env", BLOBMSG_TYPE_TABLE
},
65 [INSTANCE_ATTR_DATA
] = { "data", BLOBMSG_TYPE_TABLE
},
66 [INSTANCE_ATTR_NETDEV
] = { "netdev", BLOBMSG_TYPE_ARRAY
},
67 [INSTANCE_ATTR_FILE
] = { "file", BLOBMSG_TYPE_ARRAY
},
68 [INSTANCE_ATTR_TRIGGER
] = { "triggers", BLOBMSG_TYPE_ARRAY
},
69 [INSTANCE_ATTR_RESPAWN
] = { "respawn", BLOBMSG_TYPE_ARRAY
},
70 [INSTANCE_ATTR_NICE
] = { "nice", BLOBMSG_TYPE_INT32
},
71 [INSTANCE_ATTR_LIMITS
] = { "limits", BLOBMSG_TYPE_TABLE
},
72 [INSTANCE_ATTR_WATCH
] = { "watch", BLOBMSG_TYPE_ARRAY
},
73 [INSTANCE_ATTR_ERROR
] = { "error", BLOBMSG_TYPE_ARRAY
},
74 [INSTANCE_ATTR_USER
] = { "user", BLOBMSG_TYPE_STRING
},
75 [INSTANCE_ATTR_STDOUT
] = { "stdout", BLOBMSG_TYPE_BOOL
},
76 [INSTANCE_ATTR_STDERR
] = { "stderr", BLOBMSG_TYPE_BOOL
},
77 [INSTANCE_ATTR_NO_NEW_PRIVS
] = { "no_new_privs", BLOBMSG_TYPE_BOOL
},
78 [INSTANCE_ATTR_JAIL
] = { "jail", BLOBMSG_TYPE_TABLE
},
79 [INSTANCE_ATTR_TRACE
] = { "trace", BLOBMSG_TYPE_BOOL
},
80 [INSTANCE_ATTR_SECCOMP
] = { "seccomp", BLOBMSG_TYPE_STRING
},
81 [INSTANCE_ATTR_PIDFILE
] = { "pidfile", BLOBMSG_TYPE_STRING
},
82 [INSTANCE_ATTR_RELOADSIG
] = { "reload_signal", BLOBMSG_TYPE_INT32
},
83 [INSTANCE_ATTR_TERMTIMEOUT
] = { "term_timeout", BLOBMSG_TYPE_INT32
},
98 static const struct blobmsg_policy jail_attr
[__JAIL_ATTR_MAX
] = {
99 [JAIL_ATTR_NAME
] = { "name", BLOBMSG_TYPE_STRING
},
100 [JAIL_ATTR_HOSTNAME
] = { "hostname", BLOBMSG_TYPE_STRING
},
101 [JAIL_ATTR_PROCFS
] = { "procfs", BLOBMSG_TYPE_BOOL
},
102 [JAIL_ATTR_SYSFS
] = { "sysfs", BLOBMSG_TYPE_BOOL
},
103 [JAIL_ATTR_UBUS
] = { "ubus", BLOBMSG_TYPE_BOOL
},
104 [JAIL_ATTR_LOG
] = { "log", BLOBMSG_TYPE_BOOL
},
105 [JAIL_ATTR_RONLY
] = { "ronly", BLOBMSG_TYPE_BOOL
},
106 [JAIL_ATTR_MOUNT
] = { "mount", BLOBMSG_TYPE_TABLE
},
109 struct instance_netdev
{
110 struct blobmsg_list_node node
;
114 struct instance_file
{
115 struct blobmsg_list_node node
;
124 static const struct rlimit_name rlimit_names
[] = {
126 { "core", RLIMIT_CORE
},
127 { "cpu", RLIMIT_CPU
},
128 { "data", RLIMIT_DATA
},
129 { "fsize", RLIMIT_FSIZE
},
130 { "memlock", RLIMIT_MEMLOCK
},
131 { "nofile", RLIMIT_NOFILE
},
132 { "nproc", RLIMIT_NPROC
},
133 { "rss", RLIMIT_RSS
},
134 { "stack", RLIMIT_STACK
},
136 { "nice", RLIMIT_NICE
},
137 { "rtprio", RLIMIT_RTPRIO
},
138 { "msgqueue", RLIMIT_MSGQUEUE
},
139 { "sigpending", RLIMIT_SIGPENDING
},
144 static char trace
[] = "/sbin/utrace";
146 static void closefd(int fd
)
148 if (fd
> STDERR_FILENO
)
153 instance_limits(const char *limit
, const char *value
)
157 unsigned long cur
, max
;
159 for (i
= 0; rlimit_names
[i
].name
!= NULL
; i
++) {
160 if (strcmp(rlimit_names
[i
].name
, limit
))
162 if (!strcmp(value
, "unlimited")) {
163 rlim
.rlim_cur
= RLIM_INFINITY
;
164 rlim
.rlim_max
= RLIM_INFINITY
;
166 if (getrlimit(rlimit_names
[i
].resource
, &rlim
))
172 if (sscanf(value
, "%lu %lu", &cur
, &max
) < 1)
179 setrlimit(rlimit_names
[i
].resource
, &rlim
);
185 jail_run(struct service_instance
*in
, char **argv
)
187 struct blobmsg_list_node
*var
;
188 struct jail
*jail
= &in
->jail
;
191 argv
[argc
++] = "/sbin/ujail";
195 argv
[argc
++] = jail
->name
;
198 if (jail
->hostname
) {
200 argv
[argc
++] = jail
->hostname
;
205 argv
[argc
++] = in
->seccomp
;
208 if (in
->no_new_privs
)
226 blobmsg_list_for_each(&jail
->mount
, var
) {
227 const char *type
= blobmsg_data(var
->data
);
233 argv
[argc
++] = (char *) blobmsg_name(var
->data
);
242 instance_removepid(struct service_instance
*in
) {
245 if (unlink(in
->pidfile
)) {
246 ERROR("Failed to removed pidfile: %s: %d - %s\n",
247 in
->pidfile
, errno
, strerror(errno
));
254 instance_writepid(struct service_instance
*in
)
261 _pidfile
= fopen(in
->pidfile
, "w");
262 if (_pidfile
== NULL
) {
263 ERROR("failed to open pidfile for writing: %s: %d (%s)",
264 in
->pidfile
, errno
, strerror(errno
));
267 if (fprintf(_pidfile
, "%d\n", in
->proc
.pid
) < 0) {
268 ERROR("failed to write pidfile: %s: %d (%s)",
269 in
->pidfile
, errno
, strerror(errno
));
273 if (fclose(_pidfile
)) {
274 ERROR("failed to close pidfile: %s: %d (%s)",
275 in
->pidfile
, errno
, strerror(errno
));
283 instance_run(struct service_instance
*in
, int _stdout
, int _stderr
)
285 struct blobmsg_list_node
*var
;
286 struct blob_attr
*cur
;
289 int argc
= 1; /* NULL terminated */
291 bool seccomp
= !in
->trace
&& !in
->has_jail
&& in
->seccomp
;
292 bool setlbf
= _stdout
>= 0;
295 setpriority(PRIO_PROCESS
, 0, in
->nice
);
297 blobmsg_for_each_attr(cur
, in
->command
, rem
)
300 blobmsg_list_for_each(&in
->env
, var
)
301 setenv(blobmsg_name(var
->data
), blobmsg_data(var
->data
), 1);
304 setenv("SECCOMP_FILE", in
->seccomp
, 1);
306 if (setlbf
&& asprintf(&ld_preload
, "LD_PRELOAD=/lib/libsetlbf.so") > 0)
309 blobmsg_list_for_each(&in
->limits
, var
)
310 instance_limits(blobmsg_name(var
->data
), blobmsg_data(var
->data
));
312 if (in
->trace
|| seccomp
)
315 argv
= alloca(sizeof(char *) * (argc
+ in
->jail
.argc
));
319 argv
[argc
++] = trace
;
321 argv
[argc
++] = "/sbin/seccomp-trace";
324 argc
= jail_run(in
, argv
);
326 blobmsg_for_each_attr(cur
, in
->command
, rem
)
327 argv
[argc
++] = blobmsg_data(cur
);
331 _stdin
= open("/dev/null", O_RDONLY
);
334 _stdout
= open("/dev/null", O_WRONLY
);
337 _stderr
= open("/dev/null", O_WRONLY
);
340 dup2(_stdin
, STDIN_FILENO
);
344 dup2(_stdout
, STDOUT_FILENO
);
348 dup2(_stderr
, STDERR_FILENO
);
352 if (in
->gid
&& setgid(in
->gid
)) {
353 ERROR("failed to set group id %d: %d (%s)\n", in
->gid
, errno
, strerror(errno
));
356 if (in
->uid
&& setuid(in
->uid
)) {
357 ERROR("failed to set user id %d: %d (%s)\n", in
->uid
, errno
, strerror(errno
));
361 execvp(argv
[0], argv
);
366 instance_free_stdio(struct service_instance
*in
)
368 if (in
->_stdout
.fd
.fd
> -1) {
369 ustream_free(&in
->_stdout
.stream
);
370 close(in
->_stdout
.fd
.fd
);
371 in
->_stdout
.fd
.fd
= -1;
374 if (in
->_stderr
.fd
.fd
> -1) {
375 ustream_free(&in
->_stderr
.stream
);
376 close(in
->_stderr
.fd
.fd
);
377 in
->_stderr
.fd
.fd
= -1;
382 instance_start(struct service_instance
*in
)
385 int opipe
[2] = { -1, -1 };
386 int epipe
[2] = { -1, -1 };
388 if (!avl_is_empty(&in
->errors
.avl
)) {
389 LOG("Not starting instance %s::%s, an error was indicated\n", in
->srv
->name
, in
->name
);
394 LOG("Not starting instance %s::%s, command not set\n", in
->srv
->name
, in
->name
);
398 if (in
->proc
.pending
) {
404 instance_free_stdio(in
);
405 if (in
->_stdout
.fd
.fd
> -2) {
407 ULOG_WARN("pipe() failed: %d (%s)\n", errno
, strerror(errno
));
408 opipe
[0] = opipe
[1] = -1;
412 if (in
->_stderr
.fd
.fd
> -2) {
414 ULOG_WARN("pipe() failed: %d (%s)\n", errno
, strerror(errno
));
415 epipe
[0] = epipe
[1] = -1;
433 instance_run(in
, opipe
[1], epipe
[1]);
437 DEBUG(2, "Started instance %s::%s[%d]\n", in
->srv
->name
, in
->name
, pid
);
439 instance_writepid(in
);
440 clock_gettime(CLOCK_MONOTONIC
, &in
->start
);
441 uloop_process_add(&in
->proc
);
444 ustream_fd_init(&in
->_stdout
, opipe
[0]);
446 fcntl(opipe
[0], F_SETFD
, FD_CLOEXEC
);
450 ustream_fd_init(&in
->_stderr
, epipe
[0]);
452 fcntl(epipe
[0], F_SETFD
, FD_CLOEXEC
);
455 service_event("instance.start", in
->srv
->name
, in
->name
);
459 instance_stdio(struct ustream
*s
, int prio
, struct service_instance
*in
)
461 char *newline
, *str
, *arg0
, ident
[32];
464 arg0
= basename(blobmsg_data(blobmsg_data(in
->command
)));
465 snprintf(ident
, sizeof(ident
), "%s[%d]", arg0
, in
->proc
.pid
);
466 ulog_open(ULOG_SYSLOG
, LOG_DAEMON
, ident
);
469 str
= ustream_get_read_buf(s
, NULL
);
473 newline
= strchr(str
, '\n');
478 ulog(prio
, "%s\n", str
);
480 len
= newline
+ 1 - str
;
481 ustream_consume(s
, len
);
484 ulog_open(ULOG_SYSLOG
, LOG_DAEMON
, "procd");
488 instance_stdout(struct ustream
*s
, int bytes
)
490 instance_stdio(s
, LOG_INFO
,
491 container_of(s
, struct service_instance
, _stdout
.stream
));
495 instance_stderr(struct ustream
*s
, int bytes
)
497 instance_stdio(s
, LOG_ERR
,
498 container_of(s
, struct service_instance
, _stderr
.stream
));
502 instance_timeout(struct uloop_timeout
*t
)
504 struct service_instance
*in
;
506 in
= container_of(t
, struct service_instance
, timeout
);
509 LOG("Instance %s::%s pid %d not stopped on SIGTERM, sending SIGKILL instead\n",
510 in
->srv
->name
, in
->name
, in
->proc
.pid
);
511 kill(in
->proc
.pid
, SIGKILL
);
512 } else if (in
->restart
|| in
->respawn
)
517 instance_exit(struct uloop_process
*p
, int ret
)
519 struct service_instance
*in
;
523 in
= container_of(p
, struct service_instance
, proc
);
525 clock_gettime(CLOCK_MONOTONIC
, &tp
);
526 runtime
= tp
.tv_sec
- in
->start
.tv_sec
;
528 DEBUG(2, "Instance %s::%s exit with error code %d after %ld seconds\n", in
->srv
->name
, in
->name
, ret
, runtime
);
530 uloop_timeout_cancel(&in
->timeout
);
531 service_event("instance.stop", in
->srv
->name
, in
->name
);
534 instance_removepid(in
);
538 struct service
*s
= in
->srv
;
540 avl_delete(&s
->instances
.avl
, &in
->node
.avl
);
544 } else if (in
->restart
) {
546 } else if (in
->respawn
) {
547 if (runtime
< in
->respawn_threshold
)
550 in
->respawn_count
= 0;
551 if (in
->respawn_count
> in
->respawn_retry
&& in
->respawn_retry
> 0 ) {
552 LOG("Instance %s::%s s in a crash loop %d crashes, %ld seconds since last crash\n",
553 in
->srv
->name
, in
->name
, in
->respawn_count
, runtime
);
554 in
->restart
= in
->respawn
= 0;
556 service_event("instance.fail", in
->srv
->name
, in
->name
);
558 service_event("instance.respawn", in
->srv
->name
, in
->name
);
559 uloop_timeout_set(&in
->timeout
, in
->respawn_timeout
* 1000);
565 instance_stop(struct service_instance
*in
, bool halt
)
567 if (!in
->proc
.pending
)
570 in
->restart
= in
->respawn
= false;
571 kill(in
->proc
.pid
, SIGTERM
);
572 uloop_timeout_set(&in
->timeout
, in
->term_timeout
* 1000);
576 instance_restart(struct service_instance
*in
)
578 if (!in
->proc
.pending
)
581 if (in
->reload_signal
) {
582 kill(in
->proc
.pid
, in
->reload_signal
);
588 kill(in
->proc
.pid
, SIGTERM
);
589 uloop_timeout_set(&in
->timeout
, in
->term_timeout
* 1000);
593 instance_config_changed(struct service_instance
*in
, struct service_instance
*in_new
)
598 if (!blob_attr_equal(in
->command
, in_new
->command
))
601 if (!blobmsg_list_equal(&in
->env
, &in_new
->env
))
604 if (!blobmsg_list_equal(&in
->netdev
, &in_new
->netdev
))
607 if (!blobmsg_list_equal(&in
->file
, &in_new
->file
))
610 if (in
->nice
!= in_new
->nice
)
613 if (in
->uid
!= in_new
->uid
)
616 if (in
->gid
!= in_new
->gid
)
619 if (in
->pidfile
&& in_new
->pidfile
)
620 if (strcmp(in
->pidfile
, in_new
->pidfile
))
623 if (in
->pidfile
&& !in_new
->pidfile
)
626 if (!in
->pidfile
&& in_new
->pidfile
)
629 if (!blobmsg_list_equal(&in
->limits
, &in_new
->limits
))
632 if (!blobmsg_list_equal(&in
->jail
.mount
, &in_new
->jail
.mount
))
635 if (!blobmsg_list_equal(&in
->errors
, &in_new
->errors
))
642 instance_netdev_cmp(struct blobmsg_list_node
*l1
, struct blobmsg_list_node
*l2
)
644 struct instance_netdev
*n1
= container_of(l1
, struct instance_netdev
, node
);
645 struct instance_netdev
*n2
= container_of(l2
, struct instance_netdev
, node
);
647 return n1
->ifindex
== n2
->ifindex
;
651 instance_netdev_update(struct blobmsg_list_node
*l
)
653 struct instance_netdev
*n
= container_of(l
, struct instance_netdev
, node
);
655 n
->ifindex
= if_nametoindex(n
->node
.avl
.key
);
659 instance_file_cmp(struct blobmsg_list_node
*l1
, struct blobmsg_list_node
*l2
)
661 struct instance_file
*f1
= container_of(l1
, struct instance_file
, node
);
662 struct instance_file
*f2
= container_of(l2
, struct instance_file
, node
);
664 return !memcmp(f1
->md5
, f2
->md5
, sizeof(f1
->md5
));
668 instance_file_update(struct blobmsg_list_node
*l
)
670 struct instance_file
*f
= container_of(l
, struct instance_file
, node
);
675 memset(f
->md5
, 0, sizeof(f
->md5
));
677 fd
= open(l
->avl
.key
, O_RDONLY
);
683 len
= read(fd
, buf
, sizeof(buf
));
693 md5_hash(buf
, len
, &md5
);
696 md5_end(f
->md5
, &md5
);
701 instance_fill_any(struct blobmsg_list
*l
, struct blob_attr
*cur
)
706 blobmsg_list_fill(l
, blobmsg_data(cur
), blobmsg_data_len(cur
), false);
710 instance_fill_array(struct blobmsg_list
*l
, struct blob_attr
*cur
, blobmsg_update_cb cb
, bool array
)
712 struct blobmsg_list_node
*node
;
717 if (!blobmsg_check_attr_list(cur
, BLOBMSG_TYPE_STRING
))
720 blobmsg_list_fill(l
, blobmsg_data(cur
), blobmsg_data_len(cur
), array
);
722 blobmsg_list_for_each(l
, node
)
729 instance_jail_parse(struct service_instance
*in
, struct blob_attr
*attr
)
731 struct blob_attr
*tb
[__JAIL_ATTR_MAX
];
732 struct jail
*jail
= &in
->jail
;
735 if (stat("/sbin/ujail", &s
))
738 blobmsg_parse(jail_attr
, __JAIL_ATTR_MAX
, tb
,
739 blobmsg_data(attr
), blobmsg_data_len(attr
));
743 if (tb
[JAIL_ATTR_NAME
]) {
744 jail
->name
= blobmsg_get_string(tb
[JAIL_ATTR_NAME
]);
747 if (tb
[JAIL_ATTR_HOSTNAME
]) {
748 jail
->hostname
= blobmsg_get_string(tb
[JAIL_ATTR_HOSTNAME
]);
751 if (tb
[JAIL_ATTR_PROCFS
]) {
752 jail
->procfs
= blobmsg_get_bool(tb
[JAIL_ATTR_PROCFS
]);
755 if (tb
[JAIL_ATTR_SYSFS
]) {
756 jail
->sysfs
= blobmsg_get_bool(tb
[JAIL_ATTR_SYSFS
]);
759 if (tb
[JAIL_ATTR_UBUS
]) {
760 jail
->ubus
= blobmsg_get_bool(tb
[JAIL_ATTR_UBUS
]);
763 if (tb
[JAIL_ATTR_LOG
]) {
764 jail
->log
= blobmsg_get_bool(tb
[JAIL_ATTR_LOG
]);
767 if (tb
[JAIL_ATTR_RONLY
]) {
768 jail
->ronly
= blobmsg_get_bool(tb
[JAIL_ATTR_RONLY
]);
771 if (tb
[JAIL_ATTR_MOUNT
]) {
772 struct blob_attr
*cur
;
775 blobmsg_for_each_attr(cur
, tb
[JAIL_ATTR_MOUNT
], rem
)
777 instance_fill_array(&jail
->mount
, tb
[JAIL_ATTR_MOUNT
], NULL
, false);
786 instance_config_parse_command(struct service_instance
*in
, struct blob_attr
**tb
)
788 struct blob_attr
*cur
, *cur2
;
792 cur
= tb
[INSTANCE_ATTR_COMMAND
];
798 if (!blobmsg_check_attr_list(cur
, BLOBMSG_TYPE_STRING
))
801 blobmsg_for_each_attr(cur2
, cur
, rem
) {
811 instance_config_parse(struct service_instance
*in
)
813 struct blob_attr
*tb
[__INSTANCE_ATTR_MAX
];
814 struct blob_attr
*cur
, *cur2
;
817 blobmsg_parse(instance_attr
, __INSTANCE_ATTR_MAX
, tb
,
818 blobmsg_data(in
->config
), blobmsg_data_len(in
->config
));
820 if (!instance_config_parse_command(in
, tb
))
823 if (tb
[INSTANCE_ATTR_TERMTIMEOUT
])
824 in
->term_timeout
= blobmsg_get_u32(tb
[INSTANCE_ATTR_TERMTIMEOUT
]);
825 if (tb
[INSTANCE_ATTR_RESPAWN
]) {
827 uint32_t vals
[3] = { 3600, 5, 5};
829 blobmsg_for_each_attr(cur2
, tb
[INSTANCE_ATTR_RESPAWN
], rem
) {
830 if ((i
>= 3) && (blobmsg_type(cur2
) == BLOBMSG_TYPE_STRING
))
832 vals
[i
] = atoi(blobmsg_get_string(cur2
));
836 in
->respawn_count
= 0;
837 in
->respawn_threshold
= vals
[0];
838 in
->respawn_timeout
= vals
[1];
839 in
->respawn_retry
= vals
[2];
841 if (tb
[INSTANCE_ATTR_TRIGGER
]) {
842 in
->trigger
= tb
[INSTANCE_ATTR_TRIGGER
];
843 trigger_add(in
->trigger
, in
);
846 if (tb
[INSTANCE_ATTR_WATCH
]) {
847 blobmsg_for_each_attr(cur2
, tb
[INSTANCE_ATTR_WATCH
], rem
) {
848 if (blobmsg_type(cur2
) != BLOBMSG_TYPE_STRING
)
850 DEBUG(3, "watch for %s\n", blobmsg_get_string(cur2
));
851 watch_add(blobmsg_get_string(cur2
), in
);
855 if ((cur
= tb
[INSTANCE_ATTR_NICE
])) {
856 in
->nice
= (int8_t) blobmsg_get_u32(cur
);
857 if (in
->nice
< -20 || in
->nice
> 20)
861 if (tb
[INSTANCE_ATTR_USER
]) {
862 struct passwd
*p
= getpwnam(blobmsg_get_string(tb
[INSTANCE_ATTR_USER
]));
869 if (tb
[INSTANCE_ATTR_TRACE
])
870 in
->trace
= blobmsg_get_bool(tb
[INSTANCE_ATTR_TRACE
]);
872 if (tb
[INSTANCE_ATTR_NO_NEW_PRIVS
])
873 in
->no_new_privs
= blobmsg_get_bool(tb
[INSTANCE_ATTR_NO_NEW_PRIVS
]);
875 if (!in
->trace
&& tb
[INSTANCE_ATTR_SECCOMP
])
876 in
->seccomp
= blobmsg_get_string(tb
[INSTANCE_ATTR_SECCOMP
]);
878 if (tb
[INSTANCE_ATTR_PIDFILE
]) {
879 char *pidfile
= blobmsg_get_string(tb
[INSTANCE_ATTR_PIDFILE
]);
881 in
->pidfile
= pidfile
;
884 if (tb
[INSTANCE_ATTR_RELOADSIG
])
885 in
->reload_signal
= blobmsg_get_u32(tb
[INSTANCE_ATTR_RELOADSIG
]);
887 if (!in
->trace
&& tb
[INSTANCE_ATTR_JAIL
])
888 in
->has_jail
= instance_jail_parse(in
, tb
[INSTANCE_ATTR_JAIL
]);
890 if (tb
[INSTANCE_ATTR_STDOUT
] && blobmsg_get_bool(tb
[INSTANCE_ATTR_STDOUT
]))
891 in
->_stdout
.fd
.fd
= -1;
893 if (tb
[INSTANCE_ATTR_STDERR
] && blobmsg_get_bool(tb
[INSTANCE_ATTR_STDERR
]))
894 in
->_stderr
.fd
.fd
= -1;
896 instance_fill_any(&in
->data
, tb
[INSTANCE_ATTR_DATA
]);
898 if (!instance_fill_array(&in
->env
, tb
[INSTANCE_ATTR_ENV
], NULL
, false))
901 if (!instance_fill_array(&in
->netdev
, tb
[INSTANCE_ATTR_NETDEV
], instance_netdev_update
, true))
904 if (!instance_fill_array(&in
->file
, tb
[INSTANCE_ATTR_FILE
], instance_file_update
, true))
907 if (!instance_fill_array(&in
->limits
, tb
[INSTANCE_ATTR_LIMITS
], NULL
, false))
910 if (!instance_fill_array(&in
->errors
, tb
[INSTANCE_ATTR_ERROR
], NULL
, true))
917 instance_config_cleanup(struct service_instance
*in
)
919 blobmsg_list_free(&in
->env
);
920 blobmsg_list_free(&in
->data
);
921 blobmsg_list_free(&in
->netdev
);
922 blobmsg_list_free(&in
->file
);
923 blobmsg_list_free(&in
->limits
);
924 blobmsg_list_free(&in
->errors
);
925 blobmsg_list_free(&in
->jail
.mount
);
929 instance_config_move(struct service_instance
*in
, struct service_instance
*in_src
)
931 instance_config_cleanup(in
);
932 blobmsg_list_move(&in
->env
, &in_src
->env
);
933 blobmsg_list_move(&in
->data
, &in_src
->data
);
934 blobmsg_list_move(&in
->netdev
, &in_src
->netdev
);
935 blobmsg_list_move(&in
->file
, &in_src
->file
);
936 blobmsg_list_move(&in
->limits
, &in_src
->limits
);
937 blobmsg_list_move(&in
->errors
, &in_src
->errors
);
938 blobmsg_list_move(&in
->jail
.mount
, &in_src
->jail
.mount
);
939 in
->trigger
= in_src
->trigger
;
940 in
->command
= in_src
->command
;
941 in
->pidfile
= in_src
->pidfile
;
942 in
->name
= in_src
->name
;
943 in
->trace
= in_src
->trace
;
944 in
->node
.avl
.key
= in_src
->node
.avl
.key
;
947 in
->config
= in_src
->config
;
948 in_src
->config
= NULL
;
952 instance_update(struct service_instance
*in
, struct service_instance
*in_new
)
954 bool changed
= instance_config_changed(in
, in_new
);
955 bool running
= in
->proc
.pending
;
956 bool stopping
= in
->halt
;
958 if (!running
|| stopping
) {
959 instance_config_move(in
, in_new
);
963 instance_restart(in
);
964 instance_config_move(in
, in_new
);
965 /* restart happens in the child callback handler */
970 instance_free(struct service_instance
*in
)
972 instance_free_stdio(in
);
973 uloop_process_delete(&in
->proc
);
974 uloop_timeout_cancel(&in
->timeout
);
977 instance_config_cleanup(in
);
983 instance_init(struct service_instance
*in
, struct service
*s
, struct blob_attr
*config
)
985 config
= blob_memdup(config
);
987 in
->name
= blobmsg_name(config
);
989 in
->timeout
.cb
= instance_timeout
;
990 in
->proc
.cb
= instance_exit
;
991 in
->term_timeout
= 5;
993 in
->_stdout
.fd
.fd
= -2;
994 in
->_stdout
.stream
.string_data
= true;
995 in
->_stdout
.stream
.notify_read
= instance_stdout
;
997 in
->_stderr
.fd
.fd
= -2;
998 in
->_stderr
.stream
.string_data
= true;
999 in
->_stderr
.stream
.notify_read
= instance_stderr
;
1001 blobmsg_list_init(&in
->netdev
, struct instance_netdev
, node
, instance_netdev_cmp
);
1002 blobmsg_list_init(&in
->file
, struct instance_file
, node
, instance_file_cmp
);
1003 blobmsg_list_simple_init(&in
->env
);
1004 blobmsg_list_simple_init(&in
->data
);
1005 blobmsg_list_simple_init(&in
->limits
);
1006 blobmsg_list_simple_init(&in
->errors
);
1007 blobmsg_list_simple_init(&in
->jail
.mount
);
1008 in
->valid
= instance_config_parse(in
);
1011 void instance_dump(struct blob_buf
*b
, struct service_instance
*in
, int verbose
)
1018 i
= blobmsg_open_table(b
, in
->name
);
1019 blobmsg_add_u8(b
, "running", in
->proc
.pending
);
1020 if (in
->proc
.pending
)
1021 blobmsg_add_u32(b
, "pid", in
->proc
.pid
);
1023 blobmsg_add_blob(b
, in
->command
);
1024 blobmsg_add_u32(b
, "term_timeout", in
->term_timeout
);
1026 if (!avl_is_empty(&in
->errors
.avl
)) {
1027 struct blobmsg_list_node
*var
;
1028 void *e
= blobmsg_open_array(b
, "errors");
1029 blobmsg_list_for_each(&in
->errors
, var
)
1030 blobmsg_add_string(b
, NULL
, blobmsg_data(var
->data
));
1031 blobmsg_close_table(b
, e
);
1034 if (!avl_is_empty(&in
->env
.avl
)) {
1035 struct blobmsg_list_node
*var
;
1036 void *e
= blobmsg_open_table(b
, "env");
1037 blobmsg_list_for_each(&in
->env
, var
)
1038 blobmsg_add_string(b
, blobmsg_name(var
->data
), blobmsg_data(var
->data
));
1039 blobmsg_close_table(b
, e
);
1042 if (!avl_is_empty(&in
->data
.avl
)) {
1043 struct blobmsg_list_node
*var
;
1044 void *e
= blobmsg_open_table(b
, "data");
1045 blobmsg_list_for_each(&in
->data
, var
)
1046 blobmsg_add_blob(b
, var
->data
);
1047 blobmsg_close_table(b
, e
);
1050 if (!avl_is_empty(&in
->limits
.avl
)) {
1051 struct blobmsg_list_node
*var
;
1052 void *e
= blobmsg_open_table(b
, "limits");
1053 blobmsg_list_for_each(&in
->limits
, var
)
1054 blobmsg_add_string(b
, blobmsg_name(var
->data
), blobmsg_data(var
->data
));
1055 blobmsg_close_table(b
, e
);
1058 if (in
->reload_signal
)
1059 blobmsg_add_u32(b
, "reload_signal", in
->reload_signal
);
1062 void *r
= blobmsg_open_table(b
, "respawn");
1063 blobmsg_add_u32(b
, "threshold", in
->respawn_threshold
);
1064 blobmsg_add_u32(b
, "timeout", in
->respawn_timeout
);
1065 blobmsg_add_u32(b
, "retry", in
->respawn_retry
);
1066 blobmsg_close_table(b
, r
);
1070 blobmsg_add_u8(b
, "trace", true);
1072 if (in
->no_new_privs
)
1073 blobmsg_add_u8(b
, "no_new_privs", true);
1076 blobmsg_add_string(b
, "seccomp", in
->seccomp
);
1079 blobmsg_add_string(b
, "pidfile", in
->pidfile
);
1082 void *r
= blobmsg_open_table(b
, "jail");
1084 blobmsg_add_string(b
, "name", in
->jail
.name
);
1085 if (in
->jail
.hostname
)
1086 blobmsg_add_string(b
, "hostname", in
->jail
.hostname
);
1087 blobmsg_add_u8(b
, "procfs", in
->jail
.procfs
);
1088 blobmsg_add_u8(b
, "sysfs", in
->jail
.sysfs
);
1089 blobmsg_add_u8(b
, "ubus", in
->jail
.ubus
);
1090 blobmsg_add_u8(b
, "log", in
->jail
.log
);
1091 blobmsg_add_u8(b
, "ronly", in
->jail
.ronly
);
1092 blobmsg_close_table(b
, r
);
1093 if (!avl_is_empty(&in
->jail
.mount
.avl
)) {
1094 struct blobmsg_list_node
*var
;
1095 void *e
= blobmsg_open_table(b
, "mount");
1096 blobmsg_list_for_each(&in
->jail
.mount
, var
)
1097 blobmsg_add_string(b
, blobmsg_name(var
->data
), blobmsg_data(var
->data
));
1098 blobmsg_close_table(b
, e
);
1102 if (verbose
&& in
->trigger
)
1103 blobmsg_add_blob(b
, in
->trigger
);
1105 blobmsg_close_table(b
, i
);