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 ((seccomp
|| setlbf
) && asprintf(&ld_preload
, "LD_PRELOAD=%s%s%s",
307 seccomp
? "/lib/libpreload-seccomp.so" : "",
308 seccomp
&& setlbf
? ":" : "",
309 setlbf
? "/lib/libsetlbf.so" : "") > 0)
312 blobmsg_list_for_each(&in
->limits
, var
)
313 instance_limits(blobmsg_name(var
->data
), blobmsg_data(var
->data
));
318 argv
= alloca(sizeof(char *) * (argc
+ in
->jail
.argc
));
322 argv
[argc
++] = trace
;
325 argc
= jail_run(in
, argv
);
327 blobmsg_for_each_attr(cur
, in
->command
, rem
)
328 argv
[argc
++] = blobmsg_data(cur
);
332 _stdin
= open("/dev/null", O_RDONLY
);
335 _stdout
= open("/dev/null", O_WRONLY
);
338 _stderr
= open("/dev/null", O_WRONLY
);
341 dup2(_stdin
, STDIN_FILENO
);
345 dup2(_stdout
, STDOUT_FILENO
);
349 dup2(_stderr
, STDERR_FILENO
);
353 if (in
->gid
&& setgid(in
->gid
)) {
354 ERROR("failed to set group id %d: %d (%s)\n", in
->gid
, errno
, strerror(errno
));
357 if (in
->uid
&& setuid(in
->uid
)) {
358 ERROR("failed to set user id %d: %d (%s)\n", in
->uid
, errno
, strerror(errno
));
362 execvp(argv
[0], argv
);
367 instance_free_stdio(struct service_instance
*in
)
369 if (in
->_stdout
.fd
.fd
> -1) {
370 ustream_free(&in
->_stdout
.stream
);
371 close(in
->_stdout
.fd
.fd
);
372 in
->_stdout
.fd
.fd
= -1;
375 if (in
->_stderr
.fd
.fd
> -1) {
376 ustream_free(&in
->_stderr
.stream
);
377 close(in
->_stderr
.fd
.fd
);
378 in
->_stderr
.fd
.fd
= -1;
383 instance_start(struct service_instance
*in
)
386 int opipe
[2] = { -1, -1 };
387 int epipe
[2] = { -1, -1 };
389 if (!avl_is_empty(&in
->errors
.avl
)) {
390 LOG("Not starting instance %s::%s, an error was indicated\n", in
->srv
->name
, in
->name
);
395 LOG("Not starting instance %s::%s, command not set\n", in
->srv
->name
, in
->name
);
399 if (in
->proc
.pending
) {
405 instance_free_stdio(in
);
406 if (in
->_stdout
.fd
.fd
> -2) {
408 ULOG_WARN("pipe() failed: %d (%s)\n", errno
, strerror(errno
));
409 opipe
[0] = opipe
[1] = -1;
413 if (in
->_stderr
.fd
.fd
> -2) {
415 ULOG_WARN("pipe() failed: %d (%s)\n", errno
, strerror(errno
));
416 epipe
[0] = epipe
[1] = -1;
434 instance_run(in
, opipe
[1], epipe
[1]);
438 DEBUG(2, "Started instance %s::%s[%d]\n", in
->srv
->name
, in
->name
, pid
);
440 instance_writepid(in
);
441 clock_gettime(CLOCK_MONOTONIC
, &in
->start
);
442 uloop_process_add(&in
->proc
);
445 ustream_fd_init(&in
->_stdout
, opipe
[0]);
450 ustream_fd_init(&in
->_stderr
, epipe
[0]);
454 service_event("instance.start", in
->srv
->name
, in
->name
);
458 instance_stdio(struct ustream
*s
, int prio
, struct service_instance
*in
)
460 char *newline
, *str
, *arg0
, ident
[32];
463 arg0
= basename(blobmsg_data(blobmsg_data(in
->command
)));
464 snprintf(ident
, sizeof(ident
), "%s[%d]", arg0
, in
->proc
.pid
);
465 ulog_open(ULOG_SYSLOG
, LOG_DAEMON
, ident
);
468 str
= ustream_get_read_buf(s
, NULL
);
472 newline
= strchr(str
, '\n');
477 ulog(prio
, "%s\n", str
);
479 len
= newline
+ 1 - str
;
480 ustream_consume(s
, len
);
483 ulog_open(ULOG_SYSLOG
, LOG_DAEMON
, "procd");
487 instance_stdout(struct ustream
*s
, int bytes
)
489 instance_stdio(s
, LOG_INFO
,
490 container_of(s
, struct service_instance
, _stdout
.stream
));
494 instance_stderr(struct ustream
*s
, int bytes
)
496 instance_stdio(s
, LOG_ERR
,
497 container_of(s
, struct service_instance
, _stderr
.stream
));
501 instance_timeout(struct uloop_timeout
*t
)
503 struct service_instance
*in
;
505 in
= container_of(t
, struct service_instance
, timeout
);
508 LOG("Instance %s::%s pid %d not stopped on SIGTERM, sending SIGKILL instead\n",
509 in
->srv
->name
, in
->name
, in
->proc
.pid
);
510 kill(in
->proc
.pid
, SIGKILL
);
511 } else if (in
->restart
|| in
->respawn
)
516 instance_exit(struct uloop_process
*p
, int ret
)
518 struct service_instance
*in
;
522 in
= container_of(p
, struct service_instance
, proc
);
524 clock_gettime(CLOCK_MONOTONIC
, &tp
);
525 runtime
= tp
.tv_sec
- in
->start
.tv_sec
;
527 DEBUG(2, "Instance %s::%s exit with error code %d after %ld seconds\n", in
->srv
->name
, in
->name
, ret
, runtime
);
529 uloop_timeout_cancel(&in
->timeout
);
530 service_event("instance.stop", in
->srv
->name
, in
->name
);
533 instance_removepid(in
);
537 struct service
*s
= in
->srv
;
539 avl_delete(&s
->instances
.avl
, &in
->node
.avl
);
543 } else if (in
->restart
) {
545 } else if (in
->respawn
) {
546 if (runtime
< in
->respawn_threshold
)
549 in
->respawn_count
= 0;
550 if (in
->respawn_count
> in
->respawn_retry
&& in
->respawn_retry
> 0 ) {
551 LOG("Instance %s::%s s in a crash loop %d crashes, %ld seconds since last crash\n",
552 in
->srv
->name
, in
->name
, in
->respawn_count
, runtime
);
553 in
->restart
= in
->respawn
= 0;
555 service_event("instance.fail", in
->srv
->name
, in
->name
);
557 service_event("instance.respawn", in
->srv
->name
, in
->name
);
558 uloop_timeout_set(&in
->timeout
, in
->respawn_timeout
* 1000);
564 instance_stop(struct service_instance
*in
, bool halt
)
566 if (!in
->proc
.pending
)
569 in
->restart
= in
->respawn
= false;
570 kill(in
->proc
.pid
, SIGTERM
);
571 uloop_timeout_set(&in
->timeout
, in
->term_timeout
* 1000);
575 instance_restart(struct service_instance
*in
)
577 if (!in
->proc
.pending
)
580 if (in
->reload_signal
) {
581 kill(in
->proc
.pid
, in
->reload_signal
);
587 kill(in
->proc
.pid
, SIGTERM
);
588 uloop_timeout_set(&in
->timeout
, in
->term_timeout
* 1000);
592 instance_config_changed(struct service_instance
*in
, struct service_instance
*in_new
)
597 if (!blob_attr_equal(in
->command
, in_new
->command
))
600 if (!blobmsg_list_equal(&in
->env
, &in_new
->env
))
603 if (!blobmsg_list_equal(&in
->netdev
, &in_new
->netdev
))
606 if (!blobmsg_list_equal(&in
->file
, &in_new
->file
))
609 if (in
->nice
!= in_new
->nice
)
612 if (in
->uid
!= in_new
->uid
)
615 if (in
->gid
!= in_new
->gid
)
618 if (in
->pidfile
&& in_new
->pidfile
)
619 if (strcmp(in
->pidfile
, in_new
->pidfile
))
622 if (in
->pidfile
&& !in_new
->pidfile
)
625 if (!in
->pidfile
&& in_new
->pidfile
)
628 if (!blobmsg_list_equal(&in
->limits
, &in_new
->limits
))
631 if (!blobmsg_list_equal(&in
->jail
.mount
, &in_new
->jail
.mount
))
634 if (!blobmsg_list_equal(&in
->errors
, &in_new
->errors
))
641 instance_netdev_cmp(struct blobmsg_list_node
*l1
, struct blobmsg_list_node
*l2
)
643 struct instance_netdev
*n1
= container_of(l1
, struct instance_netdev
, node
);
644 struct instance_netdev
*n2
= container_of(l2
, struct instance_netdev
, node
);
646 return n1
->ifindex
== n2
->ifindex
;
650 instance_netdev_update(struct blobmsg_list_node
*l
)
652 struct instance_netdev
*n
= container_of(l
, struct instance_netdev
, node
);
654 n
->ifindex
= if_nametoindex(n
->node
.avl
.key
);
658 instance_file_cmp(struct blobmsg_list_node
*l1
, struct blobmsg_list_node
*l2
)
660 struct instance_file
*f1
= container_of(l1
, struct instance_file
, node
);
661 struct instance_file
*f2
= container_of(l2
, struct instance_file
, node
);
663 return !memcmp(f1
->md5
, f2
->md5
, sizeof(f1
->md5
));
667 instance_file_update(struct blobmsg_list_node
*l
)
669 struct instance_file
*f
= container_of(l
, struct instance_file
, node
);
674 memset(f
->md5
, 0, sizeof(f
->md5
));
676 fd
= open(l
->avl
.key
, O_RDONLY
);
682 len
= read(fd
, buf
, sizeof(buf
));
692 md5_hash(buf
, len
, &md5
);
695 md5_end(f
->md5
, &md5
);
700 instance_fill_any(struct blobmsg_list
*l
, struct blob_attr
*cur
)
705 blobmsg_list_fill(l
, blobmsg_data(cur
), blobmsg_data_len(cur
), false);
709 instance_fill_array(struct blobmsg_list
*l
, struct blob_attr
*cur
, blobmsg_update_cb cb
, bool array
)
711 struct blobmsg_list_node
*node
;
716 if (!blobmsg_check_attr_list(cur
, BLOBMSG_TYPE_STRING
))
719 blobmsg_list_fill(l
, blobmsg_data(cur
), blobmsg_data_len(cur
), array
);
721 blobmsg_list_for_each(l
, node
)
728 instance_jail_parse(struct service_instance
*in
, struct blob_attr
*attr
)
730 struct blob_attr
*tb
[__JAIL_ATTR_MAX
];
731 struct jail
*jail
= &in
->jail
;
734 if (stat("/sbin/ujail", &s
))
737 blobmsg_parse(jail_attr
, __JAIL_ATTR_MAX
, tb
,
738 blobmsg_data(attr
), blobmsg_data_len(attr
));
742 if (tb
[JAIL_ATTR_NAME
]) {
743 jail
->name
= blobmsg_get_string(tb
[JAIL_ATTR_NAME
]);
746 if (tb
[JAIL_ATTR_HOSTNAME
]) {
747 jail
->hostname
= blobmsg_get_string(tb
[JAIL_ATTR_HOSTNAME
]);
750 if (tb
[JAIL_ATTR_PROCFS
]) {
751 jail
->procfs
= blobmsg_get_bool(tb
[JAIL_ATTR_PROCFS
]);
754 if (tb
[JAIL_ATTR_SYSFS
]) {
755 jail
->sysfs
= blobmsg_get_bool(tb
[JAIL_ATTR_SYSFS
]);
758 if (tb
[JAIL_ATTR_UBUS
]) {
759 jail
->ubus
= blobmsg_get_bool(tb
[JAIL_ATTR_UBUS
]);
762 if (tb
[JAIL_ATTR_LOG
]) {
763 jail
->log
= blobmsg_get_bool(tb
[JAIL_ATTR_LOG
]);
766 if (tb
[JAIL_ATTR_RONLY
]) {
767 jail
->ronly
= blobmsg_get_bool(tb
[JAIL_ATTR_RONLY
]);
770 if (tb
[JAIL_ATTR_MOUNT
]) {
771 struct blob_attr
*cur
;
774 blobmsg_for_each_attr(cur
, tb
[JAIL_ATTR_MOUNT
], rem
)
776 instance_fill_array(&jail
->mount
, tb
[JAIL_ATTR_MOUNT
], NULL
, false);
785 instance_config_parse_command(struct service_instance
*in
, struct blob_attr
**tb
)
787 struct blob_attr
*cur
, *cur2
;
791 cur
= tb
[INSTANCE_ATTR_COMMAND
];
797 if (!blobmsg_check_attr_list(cur
, BLOBMSG_TYPE_STRING
))
800 blobmsg_for_each_attr(cur2
, cur
, rem
) {
810 instance_config_parse(struct service_instance
*in
)
812 struct blob_attr
*tb
[__INSTANCE_ATTR_MAX
];
813 struct blob_attr
*cur
, *cur2
;
816 blobmsg_parse(instance_attr
, __INSTANCE_ATTR_MAX
, tb
,
817 blobmsg_data(in
->config
), blobmsg_data_len(in
->config
));
819 if (!instance_config_parse_command(in
, tb
))
822 if (tb
[INSTANCE_ATTR_TERMTIMEOUT
])
823 in
->term_timeout
= blobmsg_get_u32(tb
[INSTANCE_ATTR_TERMTIMEOUT
]);
824 if (tb
[INSTANCE_ATTR_RESPAWN
]) {
826 uint32_t vals
[3] = { 3600, 5, 5};
828 blobmsg_for_each_attr(cur2
, tb
[INSTANCE_ATTR_RESPAWN
], rem
) {
829 if ((i
>= 3) && (blobmsg_type(cur2
) == BLOBMSG_TYPE_STRING
))
831 vals
[i
] = atoi(blobmsg_get_string(cur2
));
835 in
->respawn_count
= 0;
836 in
->respawn_threshold
= vals
[0];
837 in
->respawn_timeout
= vals
[1];
838 in
->respawn_retry
= vals
[2];
840 if (tb
[INSTANCE_ATTR_TRIGGER
]) {
841 in
->trigger
= tb
[INSTANCE_ATTR_TRIGGER
];
842 trigger_add(in
->trigger
, in
);
845 if (tb
[INSTANCE_ATTR_WATCH
]) {
846 blobmsg_for_each_attr(cur2
, tb
[INSTANCE_ATTR_WATCH
], rem
) {
847 if (blobmsg_type(cur2
) != BLOBMSG_TYPE_STRING
)
849 DEBUG(3, "watch for %s\n", blobmsg_get_string(cur2
));
850 watch_add(blobmsg_get_string(cur2
), in
);
854 if ((cur
= tb
[INSTANCE_ATTR_NICE
])) {
855 in
->nice
= (int8_t) blobmsg_get_u32(cur
);
856 if (in
->nice
< -20 || in
->nice
> 20)
860 if (tb
[INSTANCE_ATTR_USER
]) {
861 struct passwd
*p
= getpwnam(blobmsg_get_string(tb
[INSTANCE_ATTR_USER
]));
868 if (tb
[INSTANCE_ATTR_TRACE
])
869 in
->trace
= blobmsg_get_bool(tb
[INSTANCE_ATTR_TRACE
]);
871 if (tb
[INSTANCE_ATTR_NO_NEW_PRIVS
])
872 in
->no_new_privs
= blobmsg_get_bool(tb
[INSTANCE_ATTR_NO_NEW_PRIVS
]);
874 if (!in
->trace
&& tb
[INSTANCE_ATTR_SECCOMP
]) {
875 char *seccomp
= blobmsg_get_string(tb
[INSTANCE_ATTR_SECCOMP
]);
878 if (stat(seccomp
, &s
))
879 ERROR("%s: not starting seccomp as %s is missing\n", in
->name
, seccomp
);
881 in
->seccomp
= seccomp
;
884 if (tb
[INSTANCE_ATTR_PIDFILE
]) {
885 char *pidfile
= blobmsg_get_string(tb
[INSTANCE_ATTR_PIDFILE
]);
887 in
->pidfile
= pidfile
;
890 if (tb
[INSTANCE_ATTR_RELOADSIG
])
891 in
->reload_signal
= blobmsg_get_u32(tb
[INSTANCE_ATTR_RELOADSIG
]);
893 if (!in
->trace
&& tb
[INSTANCE_ATTR_JAIL
])
894 in
->has_jail
= instance_jail_parse(in
, tb
[INSTANCE_ATTR_JAIL
]);
896 if (tb
[INSTANCE_ATTR_STDOUT
] && blobmsg_get_bool(tb
[INSTANCE_ATTR_STDOUT
]))
897 in
->_stdout
.fd
.fd
= -1;
899 if (tb
[INSTANCE_ATTR_STDERR
] && blobmsg_get_bool(tb
[INSTANCE_ATTR_STDERR
]))
900 in
->_stderr
.fd
.fd
= -1;
902 instance_fill_any(&in
->data
, tb
[INSTANCE_ATTR_DATA
]);
904 if (!instance_fill_array(&in
->env
, tb
[INSTANCE_ATTR_ENV
], NULL
, false))
907 if (!instance_fill_array(&in
->netdev
, tb
[INSTANCE_ATTR_NETDEV
], instance_netdev_update
, true))
910 if (!instance_fill_array(&in
->file
, tb
[INSTANCE_ATTR_FILE
], instance_file_update
, true))
913 if (!instance_fill_array(&in
->limits
, tb
[INSTANCE_ATTR_LIMITS
], NULL
, false))
916 if (!instance_fill_array(&in
->errors
, tb
[INSTANCE_ATTR_ERROR
], NULL
, true))
923 instance_config_cleanup(struct service_instance
*in
)
925 blobmsg_list_free(&in
->env
);
926 blobmsg_list_free(&in
->data
);
927 blobmsg_list_free(&in
->netdev
);
928 blobmsg_list_free(&in
->file
);
929 blobmsg_list_free(&in
->limits
);
930 blobmsg_list_free(&in
->errors
);
931 blobmsg_list_free(&in
->jail
.mount
);
935 instance_config_move(struct service_instance
*in
, struct service_instance
*in_src
)
937 instance_config_cleanup(in
);
938 blobmsg_list_move(&in
->env
, &in_src
->env
);
939 blobmsg_list_move(&in
->data
, &in_src
->data
);
940 blobmsg_list_move(&in
->netdev
, &in_src
->netdev
);
941 blobmsg_list_move(&in
->file
, &in_src
->file
);
942 blobmsg_list_move(&in
->limits
, &in_src
->limits
);
943 blobmsg_list_move(&in
->errors
, &in_src
->errors
);
944 blobmsg_list_move(&in
->jail
.mount
, &in_src
->jail
.mount
);
945 in
->trigger
= in_src
->trigger
;
946 in
->command
= in_src
->command
;
947 in
->pidfile
= in_src
->pidfile
;
948 in
->name
= in_src
->name
;
949 in
->node
.avl
.key
= in_src
->node
.avl
.key
;
952 in
->config
= in_src
->config
;
953 in_src
->config
= NULL
;
957 instance_update(struct service_instance
*in
, struct service_instance
*in_new
)
959 bool changed
= instance_config_changed(in
, in_new
);
960 bool running
= in
->proc
.pending
;
961 bool stopping
= in
->halt
;
963 if (!running
|| stopping
) {
964 instance_config_move(in
, in_new
);
968 instance_restart(in
);
969 instance_config_move(in
, in_new
);
970 /* restart happens in the child callback handler */
975 instance_free(struct service_instance
*in
)
977 instance_free_stdio(in
);
978 uloop_process_delete(&in
->proc
);
979 uloop_timeout_cancel(&in
->timeout
);
982 instance_config_cleanup(in
);
988 instance_init(struct service_instance
*in
, struct service
*s
, struct blob_attr
*config
)
990 config
= blob_memdup(config
);
992 in
->name
= blobmsg_name(config
);
994 in
->timeout
.cb
= instance_timeout
;
995 in
->proc
.cb
= instance_exit
;
996 in
->term_timeout
= 5;
998 in
->_stdout
.fd
.fd
= -2;
999 in
->_stdout
.stream
.string_data
= true;
1000 in
->_stdout
.stream
.notify_read
= instance_stdout
;
1002 in
->_stderr
.fd
.fd
= -2;
1003 in
->_stderr
.stream
.string_data
= true;
1004 in
->_stderr
.stream
.notify_read
= instance_stderr
;
1006 blobmsg_list_init(&in
->netdev
, struct instance_netdev
, node
, instance_netdev_cmp
);
1007 blobmsg_list_init(&in
->file
, struct instance_file
, node
, instance_file_cmp
);
1008 blobmsg_list_simple_init(&in
->env
);
1009 blobmsg_list_simple_init(&in
->data
);
1010 blobmsg_list_simple_init(&in
->limits
);
1011 blobmsg_list_simple_init(&in
->errors
);
1012 blobmsg_list_simple_init(&in
->jail
.mount
);
1013 in
->valid
= instance_config_parse(in
);
1016 void instance_dump(struct blob_buf
*b
, struct service_instance
*in
, int verbose
)
1023 i
= blobmsg_open_table(b
, in
->name
);
1024 blobmsg_add_u8(b
, "running", in
->proc
.pending
);
1025 if (in
->proc
.pending
)
1026 blobmsg_add_u32(b
, "pid", in
->proc
.pid
);
1028 blobmsg_add_blob(b
, in
->command
);
1029 blobmsg_add_u32(b
, "term_timeout", in
->term_timeout
);
1031 if (!avl_is_empty(&in
->errors
.avl
)) {
1032 struct blobmsg_list_node
*var
;
1033 void *e
= blobmsg_open_array(b
, "errors");
1034 blobmsg_list_for_each(&in
->errors
, var
)
1035 blobmsg_add_string(b
, NULL
, blobmsg_data(var
->data
));
1036 blobmsg_close_table(b
, e
);
1039 if (!avl_is_empty(&in
->env
.avl
)) {
1040 struct blobmsg_list_node
*var
;
1041 void *e
= blobmsg_open_table(b
, "env");
1042 blobmsg_list_for_each(&in
->env
, var
)
1043 blobmsg_add_string(b
, blobmsg_name(var
->data
), blobmsg_data(var
->data
));
1044 blobmsg_close_table(b
, e
);
1047 if (!avl_is_empty(&in
->data
.avl
)) {
1048 struct blobmsg_list_node
*var
;
1049 void *e
= blobmsg_open_table(b
, "data");
1050 blobmsg_list_for_each(&in
->data
, var
)
1051 blobmsg_add_blob(b
, var
->data
);
1052 blobmsg_close_table(b
, e
);
1055 if (!avl_is_empty(&in
->limits
.avl
)) {
1056 struct blobmsg_list_node
*var
;
1057 void *e
= blobmsg_open_table(b
, "limits");
1058 blobmsg_list_for_each(&in
->limits
, var
)
1059 blobmsg_add_string(b
, blobmsg_name(var
->data
), blobmsg_data(var
->data
));
1060 blobmsg_close_table(b
, e
);
1063 if (in
->reload_signal
)
1064 blobmsg_add_u32(b
, "reload_signal", in
->reload_signal
);
1067 void *r
= blobmsg_open_table(b
, "respawn");
1068 blobmsg_add_u32(b
, "threshold", in
->respawn_threshold
);
1069 blobmsg_add_u32(b
, "timeout", in
->respawn_timeout
);
1070 blobmsg_add_u32(b
, "retry", in
->respawn_retry
);
1071 blobmsg_close_table(b
, r
);
1075 blobmsg_add_u8(b
, "trace", true);
1077 if (in
->no_new_privs
)
1078 blobmsg_add_u8(b
, "no_new_privs", true);
1081 blobmsg_add_string(b
, "seccomp", in
->seccomp
);
1084 blobmsg_add_string(b
, "pidfile", in
->pidfile
);
1087 void *r
= blobmsg_open_table(b
, "jail");
1089 blobmsg_add_string(b
, "name", in
->jail
.name
);
1090 if (in
->jail
.hostname
)
1091 blobmsg_add_string(b
, "hostname", in
->jail
.hostname
);
1092 blobmsg_add_u8(b
, "procfs", in
->jail
.procfs
);
1093 blobmsg_add_u8(b
, "sysfs", in
->jail
.sysfs
);
1094 blobmsg_add_u8(b
, "ubus", in
->jail
.ubus
);
1095 blobmsg_add_u8(b
, "log", in
->jail
.log
);
1096 blobmsg_add_u8(b
, "ronly", in
->jail
.ronly
);
1097 blobmsg_close_table(b
, r
);
1098 if (!avl_is_empty(&in
->jail
.mount
.avl
)) {
1099 struct blobmsg_list_node
*var
;
1100 void *e
= blobmsg_open_table(b
, "mount");
1101 blobmsg_list_for_each(&in
->jail
.mount
, var
)
1102 blobmsg_add_string(b
, blobmsg_name(var
->data
), blobmsg_data(var
->data
));
1103 blobmsg_close_table(b
, e
);
1107 if (verbose
&& in
->trigger
)
1108 blobmsg_add_blob(b
, in
->trigger
);
1110 blobmsg_close_table(b
, i
);