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 void closefd(int fd
)
146 if (fd
> STDERR_FILENO
)
151 instance_limits(const char *limit
, const char *value
)
155 unsigned long cur
, max
;
157 for (i
= 0; rlimit_names
[i
].name
!= NULL
; i
++) {
158 if (strcmp(rlimit_names
[i
].name
, limit
))
160 if (!strcmp(value
, "unlimited")) {
161 rlim
.rlim_cur
= RLIM_INFINITY
;
162 rlim
.rlim_max
= RLIM_INFINITY
;
164 if (getrlimit(rlimit_names
[i
].resource
, &rlim
))
170 if (sscanf(value
, "%lu %lu", &cur
, &max
) < 1)
177 setrlimit(rlimit_names
[i
].resource
, &rlim
);
183 jail_run(struct service_instance
*in
, char **argv
)
185 struct blobmsg_list_node
*var
;
186 struct jail
*jail
= &in
->jail
;
189 argv
[argc
++] = "/sbin/ujail";
193 argv
[argc
++] = jail
->name
;
196 if (jail
->hostname
) {
198 argv
[argc
++] = jail
->hostname
;
203 argv
[argc
++] = in
->seccomp
;
206 if (in
->no_new_privs
)
224 blobmsg_list_for_each(&jail
->mount
, var
) {
225 const char *type
= blobmsg_data(var
->data
);
231 argv
[argc
++] = (char *) blobmsg_name(var
->data
);
240 instance_removepid(struct service_instance
*in
) {
243 if (unlink(in
->pidfile
)) {
244 ERROR("Failed to removed pidfile: %s: %m\n", in
->pidfile
);
251 instance_writepid(struct service_instance
*in
)
258 _pidfile
= fopen(in
->pidfile
, "w");
259 if (_pidfile
== NULL
) {
260 ERROR("failed to open pidfile for writing: %s: %m", in
->pidfile
);
263 if (fprintf(_pidfile
, "%d\n", in
->proc
.pid
) < 0) {
264 ERROR("failed to write pidfile: %s: %m", in
->pidfile
);
268 if (fclose(_pidfile
)) {
269 ERROR("failed to close pidfile: %s: %m", in
->pidfile
);
277 instance_run(struct service_instance
*in
, int _stdout
, int _stderr
)
279 struct blobmsg_list_node
*var
;
280 struct blob_attr
*cur
;
282 int argc
= 1; /* NULL terminated */
284 bool seccomp
= !in
->trace
&& !in
->has_jail
&& in
->seccomp
;
285 bool setlbf
= _stdout
>= 0;
288 setpriority(PRIO_PROCESS
, 0, in
->nice
);
290 blobmsg_for_each_attr(cur
, in
->command
, rem
)
293 blobmsg_list_for_each(&in
->env
, var
)
294 setenv(blobmsg_name(var
->data
), blobmsg_data(var
->data
), 1);
297 setenv("SECCOMP_FILE", in
->seccomp
, 1);
300 setenv("LD_PRELOAD", "/lib/libsetlbf.so", 1);
302 blobmsg_list_for_each(&in
->limits
, var
)
303 instance_limits(blobmsg_name(var
->data
), blobmsg_data(var
->data
));
305 if (in
->trace
|| seccomp
)
308 argv
= alloca(sizeof(char *) * (argc
+ in
->jail
.argc
));
311 #ifdef SECCOMP_SUPPORT
313 argv
[argc
++] = "/sbin/utrace";
315 argv
[argc
++] = "/sbin/seccomp-trace";
317 if (in
->trace
|| seccomp
)
318 ULOG_WARN("Seccomp support for %s::%s not available\n", in
->srv
->name
, in
->name
);
322 argc
= jail_run(in
, argv
);
324 blobmsg_for_each_attr(cur
, in
->command
, rem
)
325 argv
[argc
++] = blobmsg_data(cur
);
329 _stdin
= open("/dev/null", O_RDONLY
);
332 _stdout
= open("/dev/null", O_WRONLY
);
335 _stderr
= open("/dev/null", O_WRONLY
);
338 dup2(_stdin
, STDIN_FILENO
);
342 dup2(_stdout
, STDOUT_FILENO
);
346 dup2(_stderr
, STDERR_FILENO
);
350 if (in
->gid
&& setgid(in
->gid
)) {
351 ERROR("failed to set group id %d: %m\n", in
->gid
);
354 if (in
->uid
&& setuid(in
->uid
)) {
355 ERROR("failed to set user id %d: %m\n", in
->uid
);
359 execvp(argv
[0], argv
);
364 instance_free_stdio(struct service_instance
*in
)
366 if (in
->_stdout
.fd
.fd
> -1) {
367 ustream_free(&in
->_stdout
.stream
);
368 close(in
->_stdout
.fd
.fd
);
369 in
->_stdout
.fd
.fd
= -1;
372 if (in
->_stderr
.fd
.fd
> -1) {
373 ustream_free(&in
->_stderr
.stream
);
374 close(in
->_stderr
.fd
.fd
);
375 in
->_stderr
.fd
.fd
= -1;
380 instance_start(struct service_instance
*in
)
383 int opipe
[2] = { -1, -1 };
384 int epipe
[2] = { -1, -1 };
386 if (!avl_is_empty(&in
->errors
.avl
)) {
387 LOG("Not starting instance %s::%s, an error was indicated\n", in
->srv
->name
, in
->name
);
392 LOG("Not starting instance %s::%s, command not set\n", in
->srv
->name
, in
->name
);
396 if (in
->proc
.pending
) {
402 instance_free_stdio(in
);
403 if (in
->_stdout
.fd
.fd
> -2) {
405 ULOG_WARN("pipe() failed: %m\n");
406 opipe
[0] = opipe
[1] = -1;
410 if (in
->_stderr
.fd
.fd
> -2) {
412 ULOG_WARN("pipe() failed: %m\n");
413 epipe
[0] = epipe
[1] = -1;
431 instance_run(in
, opipe
[1], epipe
[1]);
435 DEBUG(2, "Started instance %s::%s[%d]\n", in
->srv
->name
, in
->name
, pid
);
437 instance_writepid(in
);
438 clock_gettime(CLOCK_MONOTONIC
, &in
->start
);
439 uloop_process_add(&in
->proc
);
442 ustream_fd_init(&in
->_stdout
, opipe
[0]);
444 fcntl(opipe
[0], F_SETFD
, FD_CLOEXEC
);
448 ustream_fd_init(&in
->_stderr
, epipe
[0]);
450 fcntl(epipe
[0], F_SETFD
, FD_CLOEXEC
);
453 service_event("instance.start", in
->srv
->name
, in
->name
);
457 instance_stdio(struct ustream
*s
, int prio
, struct service_instance
*in
)
459 char *newline
, *str
, *arg0
, ident
[32];
462 arg0
= basename(blobmsg_data(blobmsg_data(in
->command
)));
463 snprintf(ident
, sizeof(ident
), "%s[%d]", arg0
, in
->proc
.pid
);
464 ulog_open(ULOG_SYSLOG
, LOG_DAEMON
, ident
);
467 str
= ustream_get_read_buf(s
, NULL
);
471 newline
= strchr(str
, '\n');
476 ulog(prio
, "%s\n", str
);
478 len
= newline
+ 1 - str
;
479 ustream_consume(s
, len
);
482 ulog_open(ULOG_SYSLOG
, LOG_DAEMON
, "procd");
486 instance_stdout(struct ustream
*s
, int bytes
)
488 instance_stdio(s
, LOG_INFO
,
489 container_of(s
, struct service_instance
, _stdout
.stream
));
493 instance_stderr(struct ustream
*s
, int bytes
)
495 instance_stdio(s
, LOG_ERR
,
496 container_of(s
, struct service_instance
, _stderr
.stream
));
500 instance_timeout(struct uloop_timeout
*t
)
502 struct service_instance
*in
;
504 in
= container_of(t
, struct service_instance
, timeout
);
507 LOG("Instance %s::%s pid %d not stopped on SIGTERM, sending SIGKILL instead\n",
508 in
->srv
->name
, in
->name
, in
->proc
.pid
);
509 kill(in
->proc
.pid
, SIGKILL
);
510 } else if (in
->restart
|| in
->respawn
)
515 instance_exit(struct uloop_process
*p
, int ret
)
517 struct service_instance
*in
;
521 in
= container_of(p
, struct service_instance
, proc
);
523 clock_gettime(CLOCK_MONOTONIC
, &tp
);
524 runtime
= tp
.tv_sec
- in
->start
.tv_sec
;
526 DEBUG(2, "Instance %s::%s exit with error code %d after %ld seconds\n", in
->srv
->name
, in
->name
, ret
, runtime
);
528 uloop_timeout_cancel(&in
->timeout
);
529 service_event("instance.stop", in
->srv
->name
, in
->name
);
532 instance_removepid(in
);
536 struct service
*s
= in
->srv
;
538 avl_delete(&s
->instances
.avl
, &in
->node
.avl
);
542 } else if (in
->restart
) {
544 } else if (in
->respawn
) {
545 if (runtime
< in
->respawn_threshold
)
548 in
->respawn_count
= 0;
549 if (in
->respawn_count
> in
->respawn_retry
&& in
->respawn_retry
> 0 ) {
550 LOG("Instance %s::%s s in a crash loop %d crashes, %ld seconds since last crash\n",
551 in
->srv
->name
, in
->name
, in
->respawn_count
, runtime
);
552 in
->restart
= in
->respawn
= 0;
554 service_event("instance.fail", in
->srv
->name
, in
->name
);
556 service_event("instance.respawn", in
->srv
->name
, in
->name
);
557 uloop_timeout_set(&in
->timeout
, in
->respawn_timeout
* 1000);
563 instance_stop(struct service_instance
*in
, bool halt
)
565 if (!in
->proc
.pending
)
568 in
->restart
= in
->respawn
= false;
569 kill(in
->proc
.pid
, SIGTERM
);
570 uloop_timeout_set(&in
->timeout
, in
->term_timeout
* 1000);
574 instance_restart(struct service_instance
*in
)
576 if (!in
->proc
.pending
)
579 if (in
->reload_signal
) {
580 kill(in
->proc
.pid
, in
->reload_signal
);
586 kill(in
->proc
.pid
, SIGTERM
);
587 uloop_timeout_set(&in
->timeout
, in
->term_timeout
* 1000);
591 instance_config_changed(struct service_instance
*in
, struct service_instance
*in_new
)
596 if (!blob_attr_equal(in
->command
, in_new
->command
))
599 if (!blobmsg_list_equal(&in
->env
, &in_new
->env
))
602 if (!blobmsg_list_equal(&in
->netdev
, &in_new
->netdev
))
605 if (!blobmsg_list_equal(&in
->file
, &in_new
->file
))
608 if (in
->nice
!= in_new
->nice
)
611 if (in
->uid
!= in_new
->uid
)
614 if (in
->gid
!= in_new
->gid
)
617 if (in
->pidfile
&& in_new
->pidfile
)
618 if (strcmp(in
->pidfile
, in_new
->pidfile
))
621 if (in
->pidfile
&& !in_new
->pidfile
)
624 if (!in
->pidfile
&& in_new
->pidfile
)
627 if (in
->respawn_retry
!= in_new
->respawn_retry
)
629 if (in
->respawn_threshold
!= in_new
->respawn_threshold
)
631 if (in
->respawn_timeout
!= in_new
->respawn_timeout
)
634 if (!blobmsg_list_equal(&in
->limits
, &in_new
->limits
))
637 if (!blobmsg_list_equal(&in
->jail
.mount
, &in_new
->jail
.mount
))
640 if (!blobmsg_list_equal(&in
->errors
, &in_new
->errors
))
647 instance_netdev_cmp(struct blobmsg_list_node
*l1
, struct blobmsg_list_node
*l2
)
649 struct instance_netdev
*n1
= container_of(l1
, struct instance_netdev
, node
);
650 struct instance_netdev
*n2
= container_of(l2
, struct instance_netdev
, node
);
652 return n1
->ifindex
== n2
->ifindex
;
656 instance_netdev_update(struct blobmsg_list_node
*l
)
658 struct instance_netdev
*n
= container_of(l
, struct instance_netdev
, node
);
660 n
->ifindex
= if_nametoindex(n
->node
.avl
.key
);
664 instance_file_cmp(struct blobmsg_list_node
*l1
, struct blobmsg_list_node
*l2
)
666 struct instance_file
*f1
= container_of(l1
, struct instance_file
, node
);
667 struct instance_file
*f2
= container_of(l2
, struct instance_file
, node
);
669 return !memcmp(f1
->md5
, f2
->md5
, sizeof(f1
->md5
));
673 instance_file_update(struct blobmsg_list_node
*l
)
675 struct instance_file
*f
= container_of(l
, struct instance_file
, node
);
680 memset(f
->md5
, 0, sizeof(f
->md5
));
682 fd
= open(l
->avl
.key
, O_RDONLY
);
688 len
= read(fd
, buf
, sizeof(buf
));
698 md5_hash(buf
, len
, &md5
);
701 md5_end(f
->md5
, &md5
);
706 instance_fill_any(struct blobmsg_list
*l
, struct blob_attr
*cur
)
711 blobmsg_list_fill(l
, blobmsg_data(cur
), blobmsg_data_len(cur
), false);
715 instance_fill_array(struct blobmsg_list
*l
, struct blob_attr
*cur
, blobmsg_update_cb cb
, bool array
)
717 struct blobmsg_list_node
*node
;
722 if (!blobmsg_check_attr_list(cur
, BLOBMSG_TYPE_STRING
))
725 blobmsg_list_fill(l
, blobmsg_data(cur
), blobmsg_data_len(cur
), array
);
727 blobmsg_list_for_each(l
, node
)
734 instance_jail_parse(struct service_instance
*in
, struct blob_attr
*attr
)
736 struct blob_attr
*tb
[__JAIL_ATTR_MAX
];
737 struct jail
*jail
= &in
->jail
;
740 if (stat("/sbin/ujail", &s
))
743 blobmsg_parse(jail_attr
, __JAIL_ATTR_MAX
, tb
,
744 blobmsg_data(attr
), blobmsg_data_len(attr
));
748 if (tb
[JAIL_ATTR_NAME
]) {
749 jail
->name
= blobmsg_get_string(tb
[JAIL_ATTR_NAME
]);
752 if (tb
[JAIL_ATTR_HOSTNAME
]) {
753 jail
->hostname
= blobmsg_get_string(tb
[JAIL_ATTR_HOSTNAME
]);
756 if (tb
[JAIL_ATTR_PROCFS
]) {
757 jail
->procfs
= blobmsg_get_bool(tb
[JAIL_ATTR_PROCFS
]);
760 if (tb
[JAIL_ATTR_SYSFS
]) {
761 jail
->sysfs
= blobmsg_get_bool(tb
[JAIL_ATTR_SYSFS
]);
764 if (tb
[JAIL_ATTR_UBUS
]) {
765 jail
->ubus
= blobmsg_get_bool(tb
[JAIL_ATTR_UBUS
]);
768 if (tb
[JAIL_ATTR_LOG
]) {
769 jail
->log
= blobmsg_get_bool(tb
[JAIL_ATTR_LOG
]);
772 if (tb
[JAIL_ATTR_RONLY
]) {
773 jail
->ronly
= blobmsg_get_bool(tb
[JAIL_ATTR_RONLY
]);
776 if (tb
[JAIL_ATTR_MOUNT
]) {
777 struct blob_attr
*cur
;
780 blobmsg_for_each_attr(cur
, tb
[JAIL_ATTR_MOUNT
], rem
)
782 instance_fill_array(&jail
->mount
, tb
[JAIL_ATTR_MOUNT
], NULL
, false);
791 instance_config_parse_command(struct service_instance
*in
, struct blob_attr
**tb
)
793 struct blob_attr
*cur
, *cur2
;
797 cur
= tb
[INSTANCE_ATTR_COMMAND
];
803 if (!blobmsg_check_attr_list(cur
, BLOBMSG_TYPE_STRING
))
806 blobmsg_for_each_attr(cur2
, cur
, rem
) {
816 instance_config_parse(struct service_instance
*in
)
818 struct blob_attr
*tb
[__INSTANCE_ATTR_MAX
];
819 struct blob_attr
*cur
, *cur2
;
822 blobmsg_parse(instance_attr
, __INSTANCE_ATTR_MAX
, tb
,
823 blobmsg_data(in
->config
), blobmsg_data_len(in
->config
));
825 if (!instance_config_parse_command(in
, tb
))
828 if (tb
[INSTANCE_ATTR_TERMTIMEOUT
])
829 in
->term_timeout
= blobmsg_get_u32(tb
[INSTANCE_ATTR_TERMTIMEOUT
]);
830 if (tb
[INSTANCE_ATTR_RESPAWN
]) {
832 uint32_t vals
[3] = { 3600, 5, 5};
834 blobmsg_for_each_attr(cur2
, tb
[INSTANCE_ATTR_RESPAWN
], rem
) {
835 if ((i
>= 3) && (blobmsg_type(cur2
) == BLOBMSG_TYPE_STRING
))
837 vals
[i
] = atoi(blobmsg_get_string(cur2
));
841 in
->respawn_count
= 0;
842 in
->respawn_threshold
= vals
[0];
843 in
->respawn_timeout
= vals
[1];
844 in
->respawn_retry
= vals
[2];
846 if (tb
[INSTANCE_ATTR_TRIGGER
]) {
847 in
->trigger
= tb
[INSTANCE_ATTR_TRIGGER
];
848 trigger_add(in
->trigger
, in
);
851 if (tb
[INSTANCE_ATTR_WATCH
]) {
852 blobmsg_for_each_attr(cur2
, tb
[INSTANCE_ATTR_WATCH
], rem
) {
853 if (blobmsg_type(cur2
) != BLOBMSG_TYPE_STRING
)
855 DEBUG(3, "watch for %s\n", blobmsg_get_string(cur2
));
856 watch_add(blobmsg_get_string(cur2
), in
);
860 if ((cur
= tb
[INSTANCE_ATTR_NICE
])) {
861 in
->nice
= (int8_t) blobmsg_get_u32(cur
);
862 if (in
->nice
< -20 || in
->nice
> 20)
866 if (tb
[INSTANCE_ATTR_USER
]) {
867 struct passwd
*p
= getpwnam(blobmsg_get_string(tb
[INSTANCE_ATTR_USER
]));
874 if (tb
[INSTANCE_ATTR_TRACE
])
875 in
->trace
= blobmsg_get_bool(tb
[INSTANCE_ATTR_TRACE
]);
877 if (tb
[INSTANCE_ATTR_NO_NEW_PRIVS
])
878 in
->no_new_privs
= blobmsg_get_bool(tb
[INSTANCE_ATTR_NO_NEW_PRIVS
]);
880 if (!in
->trace
&& tb
[INSTANCE_ATTR_SECCOMP
])
881 in
->seccomp
= blobmsg_get_string(tb
[INSTANCE_ATTR_SECCOMP
]);
883 if (tb
[INSTANCE_ATTR_PIDFILE
]) {
884 char *pidfile
= blobmsg_get_string(tb
[INSTANCE_ATTR_PIDFILE
]);
886 in
->pidfile
= pidfile
;
889 if (tb
[INSTANCE_ATTR_RELOADSIG
])
890 in
->reload_signal
= blobmsg_get_u32(tb
[INSTANCE_ATTR_RELOADSIG
]);
892 if (!in
->trace
&& tb
[INSTANCE_ATTR_JAIL
])
893 in
->has_jail
= instance_jail_parse(in
, tb
[INSTANCE_ATTR_JAIL
]);
895 if (tb
[INSTANCE_ATTR_STDOUT
] && blobmsg_get_bool(tb
[INSTANCE_ATTR_STDOUT
]))
896 in
->_stdout
.fd
.fd
= -1;
898 if (tb
[INSTANCE_ATTR_STDERR
] && blobmsg_get_bool(tb
[INSTANCE_ATTR_STDERR
]))
899 in
->_stderr
.fd
.fd
= -1;
901 instance_fill_any(&in
->data
, tb
[INSTANCE_ATTR_DATA
]);
903 if (!instance_fill_array(&in
->env
, tb
[INSTANCE_ATTR_ENV
], NULL
, false))
906 if (!instance_fill_array(&in
->netdev
, tb
[INSTANCE_ATTR_NETDEV
], instance_netdev_update
, true))
909 if (!instance_fill_array(&in
->file
, tb
[INSTANCE_ATTR_FILE
], instance_file_update
, true))
912 if (!instance_fill_array(&in
->limits
, tb
[INSTANCE_ATTR_LIMITS
], NULL
, false))
915 if (!instance_fill_array(&in
->errors
, tb
[INSTANCE_ATTR_ERROR
], NULL
, true))
922 instance_config_cleanup(struct service_instance
*in
)
924 blobmsg_list_free(&in
->env
);
925 blobmsg_list_free(&in
->data
);
926 blobmsg_list_free(&in
->netdev
);
927 blobmsg_list_free(&in
->file
);
928 blobmsg_list_free(&in
->limits
);
929 blobmsg_list_free(&in
->errors
);
930 blobmsg_list_free(&in
->jail
.mount
);
934 instance_config_move(struct service_instance
*in
, struct service_instance
*in_src
)
936 instance_config_cleanup(in
);
937 blobmsg_list_move(&in
->env
, &in_src
->env
);
938 blobmsg_list_move(&in
->data
, &in_src
->data
);
939 blobmsg_list_move(&in
->netdev
, &in_src
->netdev
);
940 blobmsg_list_move(&in
->file
, &in_src
->file
);
941 blobmsg_list_move(&in
->limits
, &in_src
->limits
);
942 blobmsg_list_move(&in
->errors
, &in_src
->errors
);
943 blobmsg_list_move(&in
->jail
.mount
, &in_src
->jail
.mount
);
944 in
->trigger
= in_src
->trigger
;
945 in
->command
= in_src
->command
;
946 in
->pidfile
= in_src
->pidfile
;
947 in
->respawn_retry
= in_src
->respawn_retry
;
948 in
->respawn_threshold
= in_src
->respawn_threshold
;
949 in
->respawn_timeout
= in_src
->respawn_timeout
;
950 in
->name
= in_src
->name
;
951 in
->trace
= in_src
->trace
;
952 in
->node
.avl
.key
= in_src
->node
.avl
.key
;
955 in
->config
= in_src
->config
;
956 in_src
->config
= NULL
;
960 instance_update(struct service_instance
*in
, struct service_instance
*in_new
)
962 bool changed
= instance_config_changed(in
, in_new
);
963 bool running
= in
->proc
.pending
;
964 bool stopping
= in
->halt
;
966 if (!running
|| stopping
) {
967 instance_config_move(in
, in_new
);
971 instance_restart(in
);
972 instance_config_move(in
, in_new
);
973 /* restart happens in the child callback handler */
978 instance_free(struct service_instance
*in
)
980 instance_free_stdio(in
);
981 uloop_process_delete(&in
->proc
);
982 uloop_timeout_cancel(&in
->timeout
);
985 instance_config_cleanup(in
);
991 instance_init(struct service_instance
*in
, struct service
*s
, struct blob_attr
*config
)
993 config
= blob_memdup(config
);
995 in
->name
= blobmsg_name(config
);
997 in
->timeout
.cb
= instance_timeout
;
998 in
->proc
.cb
= instance_exit
;
999 in
->term_timeout
= 5;
1001 in
->_stdout
.fd
.fd
= -2;
1002 in
->_stdout
.stream
.string_data
= true;
1003 in
->_stdout
.stream
.notify_read
= instance_stdout
;
1005 in
->_stderr
.fd
.fd
= -2;
1006 in
->_stderr
.stream
.string_data
= true;
1007 in
->_stderr
.stream
.notify_read
= instance_stderr
;
1009 blobmsg_list_init(&in
->netdev
, struct instance_netdev
, node
, instance_netdev_cmp
);
1010 blobmsg_list_init(&in
->file
, struct instance_file
, node
, instance_file_cmp
);
1011 blobmsg_list_simple_init(&in
->env
);
1012 blobmsg_list_simple_init(&in
->data
);
1013 blobmsg_list_simple_init(&in
->limits
);
1014 blobmsg_list_simple_init(&in
->errors
);
1015 blobmsg_list_simple_init(&in
->jail
.mount
);
1016 in
->valid
= instance_config_parse(in
);
1019 void instance_dump(struct blob_buf
*b
, struct service_instance
*in
, int verbose
)
1026 i
= blobmsg_open_table(b
, in
->name
);
1027 blobmsg_add_u8(b
, "running", in
->proc
.pending
);
1028 if (in
->proc
.pending
)
1029 blobmsg_add_u32(b
, "pid", in
->proc
.pid
);
1031 blobmsg_add_blob(b
, in
->command
);
1032 blobmsg_add_u32(b
, "term_timeout", in
->term_timeout
);
1034 if (!avl_is_empty(&in
->errors
.avl
)) {
1035 struct blobmsg_list_node
*var
;
1036 void *e
= blobmsg_open_array(b
, "errors");
1037 blobmsg_list_for_each(&in
->errors
, var
)
1038 blobmsg_add_string(b
, NULL
, blobmsg_data(var
->data
));
1039 blobmsg_close_table(b
, e
);
1042 if (!avl_is_empty(&in
->env
.avl
)) {
1043 struct blobmsg_list_node
*var
;
1044 void *e
= blobmsg_open_table(b
, "env");
1045 blobmsg_list_for_each(&in
->env
, var
)
1046 blobmsg_add_string(b
, blobmsg_name(var
->data
), blobmsg_data(var
->data
));
1047 blobmsg_close_table(b
, e
);
1050 if (!avl_is_empty(&in
->data
.avl
)) {
1051 struct blobmsg_list_node
*var
;
1052 void *e
= blobmsg_open_table(b
, "data");
1053 blobmsg_list_for_each(&in
->data
, var
)
1054 blobmsg_add_blob(b
, var
->data
);
1055 blobmsg_close_table(b
, e
);
1058 if (!avl_is_empty(&in
->limits
.avl
)) {
1059 struct blobmsg_list_node
*var
;
1060 void *e
= blobmsg_open_table(b
, "limits");
1061 blobmsg_list_for_each(&in
->limits
, var
)
1062 blobmsg_add_string(b
, blobmsg_name(var
->data
), blobmsg_data(var
->data
));
1063 blobmsg_close_table(b
, e
);
1066 if (in
->reload_signal
)
1067 blobmsg_add_u32(b
, "reload_signal", in
->reload_signal
);
1070 void *r
= blobmsg_open_table(b
, "respawn");
1071 blobmsg_add_u32(b
, "threshold", in
->respawn_threshold
);
1072 blobmsg_add_u32(b
, "timeout", in
->respawn_timeout
);
1073 blobmsg_add_u32(b
, "retry", in
->respawn_retry
);
1074 blobmsg_close_table(b
, r
);
1078 blobmsg_add_u8(b
, "trace", true);
1080 if (in
->no_new_privs
)
1081 blobmsg_add_u8(b
, "no_new_privs", true);
1084 blobmsg_add_string(b
, "seccomp", in
->seccomp
);
1087 blobmsg_add_string(b
, "pidfile", in
->pidfile
);
1090 void *r
= blobmsg_open_table(b
, "jail");
1092 blobmsg_add_string(b
, "name", in
->jail
.name
);
1093 if (in
->jail
.hostname
)
1094 blobmsg_add_string(b
, "hostname", in
->jail
.hostname
);
1095 blobmsg_add_u8(b
, "procfs", in
->jail
.procfs
);
1096 blobmsg_add_u8(b
, "sysfs", in
->jail
.sysfs
);
1097 blobmsg_add_u8(b
, "ubus", in
->jail
.ubus
);
1098 blobmsg_add_u8(b
, "log", in
->jail
.log
);
1099 blobmsg_add_u8(b
, "ronly", in
->jail
.ronly
);
1100 blobmsg_close_table(b
, r
);
1101 if (!avl_is_empty(&in
->jail
.mount
.avl
)) {
1102 struct blobmsg_list_node
*var
;
1103 void *e
= blobmsg_open_table(b
, "mount");
1104 blobmsg_list_for_each(&in
->jail
.mount
, var
)
1105 blobmsg_add_string(b
, blobmsg_name(var
->data
), blobmsg_data(var
->data
));
1106 blobmsg_close_table(b
, e
);
1110 if (verbose
&& in
->trigger
)
1111 blobmsg_add_blob(b
, in
->trigger
);
1113 blobmsg_close_table(b
, i
);