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
,
60 static const struct blobmsg_policy instance_attr
[__INSTANCE_ATTR_MAX
] = {
61 [INSTANCE_ATTR_COMMAND
] = { "command", BLOBMSG_TYPE_ARRAY
},
62 [INSTANCE_ATTR_ENV
] = { "env", BLOBMSG_TYPE_TABLE
},
63 [INSTANCE_ATTR_DATA
] = { "data", BLOBMSG_TYPE_TABLE
},
64 [INSTANCE_ATTR_NETDEV
] = { "netdev", BLOBMSG_TYPE_ARRAY
},
65 [INSTANCE_ATTR_FILE
] = { "file", BLOBMSG_TYPE_ARRAY
},
66 [INSTANCE_ATTR_TRIGGER
] = { "triggers", BLOBMSG_TYPE_ARRAY
},
67 [INSTANCE_ATTR_RESPAWN
] = { "respawn", BLOBMSG_TYPE_ARRAY
},
68 [INSTANCE_ATTR_NICE
] = { "nice", BLOBMSG_TYPE_INT32
},
69 [INSTANCE_ATTR_LIMITS
] = { "limits", BLOBMSG_TYPE_TABLE
},
70 [INSTANCE_ATTR_WATCH
] = { "watch", BLOBMSG_TYPE_ARRAY
},
71 [INSTANCE_ATTR_ERROR
] = { "error", BLOBMSG_TYPE_ARRAY
},
72 [INSTANCE_ATTR_USER
] = { "user", BLOBMSG_TYPE_STRING
},
73 [INSTANCE_ATTR_STDOUT
] = { "stdout", BLOBMSG_TYPE_BOOL
},
74 [INSTANCE_ATTR_STDERR
] = { "stderr", BLOBMSG_TYPE_BOOL
},
75 [INSTANCE_ATTR_NO_NEW_PRIVS
] = { "no_new_privs", BLOBMSG_TYPE_BOOL
},
76 [INSTANCE_ATTR_JAIL
] = { "jail", BLOBMSG_TYPE_TABLE
},
77 [INSTANCE_ATTR_TRACE
] = { "trace", BLOBMSG_TYPE_BOOL
},
78 [INSTANCE_ATTR_SECCOMP
] = { "seccomp", BLOBMSG_TYPE_STRING
},
79 [INSTANCE_ATTR_PIDFILE
] = { "pidfile", BLOBMSG_TYPE_STRING
},
94 static const struct blobmsg_policy jail_attr
[__JAIL_ATTR_MAX
] = {
95 [JAIL_ATTR_NAME
] = { "name", BLOBMSG_TYPE_STRING
},
96 [JAIL_ATTR_HOSTNAME
] = { "hostname", BLOBMSG_TYPE_STRING
},
97 [JAIL_ATTR_PROCFS
] = { "procfs", BLOBMSG_TYPE_BOOL
},
98 [JAIL_ATTR_SYSFS
] = { "sysfs", BLOBMSG_TYPE_BOOL
},
99 [JAIL_ATTR_UBUS
] = { "ubus", BLOBMSG_TYPE_BOOL
},
100 [JAIL_ATTR_LOG
] = { "log", BLOBMSG_TYPE_BOOL
},
101 [JAIL_ATTR_RONLY
] = { "ronly", BLOBMSG_TYPE_BOOL
},
102 [JAIL_ATTR_MOUNT
] = { "mount", BLOBMSG_TYPE_TABLE
},
105 struct instance_netdev
{
106 struct blobmsg_list_node node
;
110 struct instance_file
{
111 struct blobmsg_list_node node
;
120 static const struct rlimit_name rlimit_names
[] = {
122 { "core", RLIMIT_CORE
},
123 { "cpu", RLIMIT_CPU
},
124 { "data", RLIMIT_DATA
},
125 { "fsize", RLIMIT_FSIZE
},
126 { "memlock", RLIMIT_MEMLOCK
},
127 { "nofile", RLIMIT_NOFILE
},
128 { "nproc", RLIMIT_NPROC
},
129 { "rss", RLIMIT_RSS
},
130 { "stack", RLIMIT_STACK
},
132 { "nice", RLIMIT_NICE
},
133 { "rtprio", RLIMIT_RTPRIO
},
134 { "msgqueue", RLIMIT_MSGQUEUE
},
135 { "sigpending", RLIMIT_SIGPENDING
},
140 static char trace
[] = "/sbin/utrace";
142 static void closefd(int fd
)
144 if (fd
> STDERR_FILENO
)
149 instance_limits(const char *limit
, const char *value
)
153 unsigned long cur
, max
;
155 for (i
= 0; rlimit_names
[i
].name
!= NULL
; i
++) {
156 if (strcmp(rlimit_names
[i
].name
, limit
))
158 if (!strcmp(value
, "unlimited")) {
159 rlim
.rlim_cur
= RLIM_INFINITY
;
160 rlim
.rlim_max
= RLIM_INFINITY
;
162 if (getrlimit(rlimit_names
[i
].resource
, &rlim
))
168 if (sscanf(value
, "%lu %lu", &cur
, &max
) < 1)
175 setrlimit(rlimit_names
[i
].resource
, &rlim
);
181 jail_run(struct service_instance
*in
, char **argv
)
183 struct blobmsg_list_node
*var
;
184 struct jail
*jail
= &in
->jail
;
187 argv
[argc
++] = "/sbin/ujail";
191 argv
[argc
++] = jail
->name
;
194 if (jail
->hostname
) {
196 argv
[argc
++] = jail
->hostname
;
201 argv
[argc
++] = in
->seccomp
;
204 if (in
->no_new_privs
)
222 blobmsg_list_for_each(&jail
->mount
, var
) {
223 const char *type
= blobmsg_data(var
->data
);
229 argv
[argc
++] = (char *) blobmsg_name(var
->data
);
238 instance_removepid(struct service_instance
*in
) {
241 if (unlink(in
->pidfile
)) {
242 ERROR("Failed to removed pidfile: %s: %d - %s\n",
243 in
->pidfile
, errno
, strerror(errno
));
250 instance_writepid(struct service_instance
*in
)
257 _pidfile
= fopen(in
->pidfile
, "w");
258 if (_pidfile
== NULL
) {
259 ERROR("failed to open pidfile for writing: %s: %d (%s)",
260 in
->pidfile
, errno
, strerror(errno
));
263 if (fprintf(_pidfile
, "%d\n", in
->proc
.pid
) < 0) {
264 ERROR("failed to write pidfile: %s: %d (%s)",
265 in
->pidfile
, errno
, strerror(errno
));
268 if (fclose(_pidfile
)) {
269 ERROR("failed to close pidfile: %s: %d (%s)",
270 in
->pidfile
, errno
, strerror(errno
));
278 instance_run(struct service_instance
*in
, int _stdout
, int _stderr
)
280 struct blobmsg_list_node
*var
;
281 struct blob_attr
*cur
;
284 int argc
= 1; /* NULL terminated */
286 bool seccomp
= !in
->trace
&& !in
->has_jail
&& in
->seccomp
;
287 bool setlbf
= _stdout
>= 0;
290 setpriority(PRIO_PROCESS
, 0, in
->nice
);
292 blobmsg_for_each_attr(cur
, in
->command
, rem
)
295 blobmsg_list_for_each(&in
->env
, var
)
296 setenv(blobmsg_name(var
->data
), blobmsg_data(var
->data
), 1);
299 setenv("SECCOMP_FILE", in
->seccomp
, 1);
301 if ((seccomp
|| setlbf
) && asprintf(&ld_preload
, "LD_PRELOAD=%s%s%s",
302 seccomp
? "/lib/libpreload-seccomp.so" : "",
303 seccomp
&& setlbf
? ":" : "",
304 setlbf
? "/lib/libsetlbf.so" : "") > 0)
307 blobmsg_list_for_each(&in
->limits
, var
)
308 instance_limits(blobmsg_name(var
->data
), blobmsg_data(var
->data
));
313 argv
= alloca(sizeof(char *) * (argc
+ in
->jail
.argc
));
317 argv
[argc
++] = trace
;
320 argc
= jail_run(in
, argv
);
322 blobmsg_for_each_attr(cur
, in
->command
, rem
)
323 argv
[argc
++] = blobmsg_data(cur
);
327 _stdin
= open("/dev/null", O_RDONLY
);
330 _stdout
= open("/dev/null", O_WRONLY
);
333 _stderr
= open("/dev/null", O_WRONLY
);
336 dup2(_stdin
, STDIN_FILENO
);
340 dup2(_stdout
, STDOUT_FILENO
);
344 dup2(_stderr
, STDERR_FILENO
);
348 if (in
->gid
&& setgid(in
->gid
)) {
349 ERROR("failed to set group id %d: %d (%s)\n", in
->gid
, errno
, strerror(errno
));
352 if (in
->uid
&& setuid(in
->uid
)) {
353 ERROR("failed to set user id %d: %d (%s)\n", in
->uid
, errno
, strerror(errno
));
357 execvp(argv
[0], argv
);
362 instance_free_stdio(struct service_instance
*in
)
364 if (in
->_stdout
.fd
.fd
> -1) {
365 ustream_free(&in
->_stdout
.stream
);
366 close(in
->_stdout
.fd
.fd
);
367 in
->_stdout
.fd
.fd
= -1;
370 if (in
->_stderr
.fd
.fd
> -1) {
371 ustream_free(&in
->_stderr
.stream
);
372 close(in
->_stderr
.fd
.fd
);
373 in
->_stderr
.fd
.fd
= -1;
378 instance_start(struct service_instance
*in
)
381 int opipe
[2] = { -1, -1 };
382 int epipe
[2] = { -1, -1 };
384 if (!avl_is_empty(&in
->errors
.avl
)) {
385 LOG("Not starting instance %s::%s, an error was indicated\n", in
->srv
->name
, in
->name
);
389 if (in
->proc
.pending
)
392 instance_free_stdio(in
);
393 if (in
->_stdout
.fd
.fd
> -2) {
395 ULOG_WARN("pipe() failed: %d (%s)\n", errno
, strerror(errno
));
396 opipe
[0] = opipe
[1] = -1;
400 if (in
->_stderr
.fd
.fd
> -2) {
402 ULOG_WARN("pipe() failed: %d (%s)\n", errno
, strerror(errno
));
403 epipe
[0] = epipe
[1] = -1;
408 in
->halt
= !in
->respawn
;
421 instance_run(in
, opipe
[1], epipe
[1]);
425 DEBUG(2, "Started instance %s::%s[%d]\n", in
->srv
->name
, in
->name
, pid
);
427 instance_writepid(in
);
428 clock_gettime(CLOCK_MONOTONIC
, &in
->start
);
429 uloop_process_add(&in
->proc
);
432 ustream_fd_init(&in
->_stdout
, opipe
[0]);
437 ustream_fd_init(&in
->_stderr
, epipe
[0]);
441 service_event("instance.start", in
->srv
->name
, in
->name
);
445 instance_stdio(struct ustream
*s
, int prio
, struct service_instance
*in
)
447 char *newline
, *str
, *arg0
, ident
[32];
450 arg0
= basename(blobmsg_data(blobmsg_data(in
->command
)));
451 snprintf(ident
, sizeof(ident
), "%s[%d]", arg0
, in
->proc
.pid
);
452 ulog_open(ULOG_SYSLOG
, LOG_DAEMON
, ident
);
455 str
= ustream_get_read_buf(s
, NULL
);
459 newline
= strchr(str
, '\n');
464 ulog(prio
, "%s\n", str
);
466 len
= newline
+ 1 - str
;
467 ustream_consume(s
, len
);
470 ulog_open(ULOG_SYSLOG
, LOG_DAEMON
, "procd");
474 instance_stdout(struct ustream
*s
, int bytes
)
476 instance_stdio(s
, LOG_INFO
,
477 container_of(s
, struct service_instance
, _stdout
.stream
));
481 instance_stderr(struct ustream
*s
, int bytes
)
483 instance_stdio(s
, LOG_ERR
,
484 container_of(s
, struct service_instance
, _stderr
.stream
));
488 instance_timeout(struct uloop_timeout
*t
)
490 struct service_instance
*in
;
492 in
= container_of(t
, struct service_instance
, timeout
);
494 if (!in
->halt
&& (in
->restart
|| in
->respawn
))
499 instance_exit(struct uloop_process
*p
, int ret
)
501 struct service_instance
*in
;
505 in
= container_of(p
, struct service_instance
, proc
);
507 clock_gettime(CLOCK_MONOTONIC
, &tp
);
508 runtime
= tp
.tv_sec
- in
->start
.tv_sec
;
510 DEBUG(2, "Instance %s::%s exit with error code %d after %ld seconds\n", in
->srv
->name
, in
->name
, ret
, runtime
);
514 uloop_timeout_cancel(&in
->timeout
);
516 instance_removepid(in
);
517 } else if (in
->restart
) {
519 } else if (in
->respawn
) {
520 if (runtime
< in
->respawn_threshold
)
523 in
->respawn_count
= 0;
524 if (in
->respawn_count
> in
->respawn_retry
&& in
->respawn_retry
> 0 ) {
525 LOG("Instance %s::%s s in a crash loop %d crashes, %ld seconds since last crash\n",
526 in
->srv
->name
, in
->name
, in
->respawn_count
, runtime
);
527 in
->restart
= in
->respawn
= 0;
530 uloop_timeout_set(&in
->timeout
, in
->respawn_timeout
* 1000);
533 service_event("instance.stop", in
->srv
->name
, in
->name
);
537 instance_stop(struct service_instance
*in
)
539 if (!in
->proc
.pending
)
542 in
->restart
= in
->respawn
= false;
543 kill(in
->proc
.pid
, SIGTERM
);
547 instance_restart(struct service_instance
*in
)
549 if (!in
->proc
.pending
)
553 kill(in
->proc
.pid
, SIGTERM
);
554 instance_removepid(in
);
558 instance_config_changed(struct service_instance
*in
, struct service_instance
*in_new
)
563 if (!blob_attr_equal(in
->command
, in_new
->command
))
566 if (!blobmsg_list_equal(&in
->env
, &in_new
->env
))
569 if (!blobmsg_list_equal(&in
->data
, &in_new
->data
))
572 if (!blobmsg_list_equal(&in
->netdev
, &in_new
->netdev
))
575 if (!blobmsg_list_equal(&in
->file
, &in_new
->file
))
578 if (in
->nice
!= in_new
->nice
)
581 if (in
->uid
!= in_new
->uid
)
584 if (in
->gid
!= in_new
->gid
)
587 if (in
->pidfile
&& in_new
->pidfile
)
588 if (strcmp(in
->pidfile
, in_new
->pidfile
))
591 if (in
->pidfile
&& !in_new
->pidfile
)
594 if (!in
->pidfile
&& in_new
->pidfile
)
597 if (!blobmsg_list_equal(&in
->limits
, &in_new
->limits
))
600 if (!blobmsg_list_equal(&in
->jail
.mount
, &in_new
->jail
.mount
))
603 if (!blobmsg_list_equal(&in
->errors
, &in_new
->errors
))
610 instance_netdev_cmp(struct blobmsg_list_node
*l1
, struct blobmsg_list_node
*l2
)
612 struct instance_netdev
*n1
= container_of(l1
, struct instance_netdev
, node
);
613 struct instance_netdev
*n2
= container_of(l2
, struct instance_netdev
, node
);
615 return n1
->ifindex
== n2
->ifindex
;
619 instance_netdev_update(struct blobmsg_list_node
*l
)
621 struct instance_netdev
*n
= container_of(l
, struct instance_netdev
, node
);
623 n
->ifindex
= if_nametoindex(n
->node
.avl
.key
);
627 instance_file_cmp(struct blobmsg_list_node
*l1
, struct blobmsg_list_node
*l2
)
629 struct instance_file
*f1
= container_of(l1
, struct instance_file
, node
);
630 struct instance_file
*f2
= container_of(l2
, struct instance_file
, node
);
632 return !memcmp(f1
->md5
, f2
->md5
, sizeof(f1
->md5
));
636 instance_file_update(struct blobmsg_list_node
*l
)
638 struct instance_file
*f
= container_of(l
, struct instance_file
, node
);
643 memset(f
->md5
, 0, sizeof(f
->md5
));
645 fd
= open(l
->avl
.key
, O_RDONLY
);
651 len
= read(fd
, buf
, sizeof(buf
));
661 md5_hash(buf
, len
, &md5
);
664 md5_end(f
->md5
, &md5
);
669 instance_fill_any(struct blobmsg_list
*l
, struct blob_attr
*cur
)
674 blobmsg_list_fill(l
, blobmsg_data(cur
), blobmsg_data_len(cur
), false);
678 instance_fill_array(struct blobmsg_list
*l
, struct blob_attr
*cur
, blobmsg_update_cb cb
, bool array
)
680 struct blobmsg_list_node
*node
;
685 if (!blobmsg_check_attr_list(cur
, BLOBMSG_TYPE_STRING
))
688 blobmsg_list_fill(l
, blobmsg_data(cur
), blobmsg_data_len(cur
), array
);
690 blobmsg_list_for_each(l
, node
)
697 instance_jail_parse(struct service_instance
*in
, struct blob_attr
*attr
)
699 struct blob_attr
*tb
[__JAIL_ATTR_MAX
];
700 struct jail
*jail
= &in
->jail
;
703 if (stat("/sbin/ujail", &s
))
706 blobmsg_parse(jail_attr
, __JAIL_ATTR_MAX
, tb
,
707 blobmsg_data(attr
), blobmsg_data_len(attr
));
711 if (tb
[JAIL_ATTR_NAME
]) {
712 jail
->name
= blobmsg_get_string(tb
[JAIL_ATTR_NAME
]);
715 if (tb
[JAIL_ATTR_HOSTNAME
]) {
716 jail
->hostname
= blobmsg_get_string(tb
[JAIL_ATTR_HOSTNAME
]);
719 if (tb
[JAIL_ATTR_PROCFS
]) {
720 jail
->procfs
= blobmsg_get_bool(tb
[JAIL_ATTR_PROCFS
]);
723 if (tb
[JAIL_ATTR_SYSFS
]) {
724 jail
->sysfs
= blobmsg_get_bool(tb
[JAIL_ATTR_SYSFS
]);
727 if (tb
[JAIL_ATTR_UBUS
]) {
728 jail
->ubus
= blobmsg_get_bool(tb
[JAIL_ATTR_UBUS
]);
731 if (tb
[JAIL_ATTR_LOG
]) {
732 jail
->log
= blobmsg_get_bool(tb
[JAIL_ATTR_LOG
]);
735 if (tb
[JAIL_ATTR_RONLY
]) {
736 jail
->ronly
= blobmsg_get_bool(tb
[JAIL_ATTR_RONLY
]);
739 if (tb
[JAIL_ATTR_MOUNT
]) {
740 struct blob_attr
*cur
;
743 blobmsg_for_each_attr(cur
, tb
[JAIL_ATTR_MOUNT
], rem
)
745 instance_fill_array(&jail
->mount
, tb
[JAIL_ATTR_MOUNT
], NULL
, false);
754 instance_config_parse(struct service_instance
*in
)
756 struct blob_attr
*tb
[__INSTANCE_ATTR_MAX
];
757 struct blob_attr
*cur
, *cur2
;
761 blobmsg_parse(instance_attr
, __INSTANCE_ATTR_MAX
, tb
,
762 blobmsg_data(in
->config
), blobmsg_data_len(in
->config
));
764 cur
= tb
[INSTANCE_ATTR_COMMAND
];
768 if (!blobmsg_check_attr_list(cur
, BLOBMSG_TYPE_STRING
))
771 blobmsg_for_each_attr(cur2
, cur
, rem
) {
780 if (tb
[INSTANCE_ATTR_RESPAWN
]) {
782 uint32_t vals
[3] = { 3600, 5, 5};
784 blobmsg_for_each_attr(cur2
, tb
[INSTANCE_ATTR_RESPAWN
], rem
) {
785 if ((i
>= 3) && (blobmsg_type(cur2
) == BLOBMSG_TYPE_STRING
))
787 vals
[i
] = atoi(blobmsg_get_string(cur2
));
791 in
->respawn_count
= 0;
792 in
->respawn_threshold
= vals
[0];
793 in
->respawn_timeout
= vals
[1];
794 in
->respawn_retry
= vals
[2];
796 if (tb
[INSTANCE_ATTR_TRIGGER
]) {
797 in
->trigger
= tb
[INSTANCE_ATTR_TRIGGER
];
798 trigger_add(in
->trigger
, in
);
801 if (tb
[INSTANCE_ATTR_WATCH
]) {
802 blobmsg_for_each_attr(cur2
, tb
[INSTANCE_ATTR_WATCH
], rem
) {
803 if (blobmsg_type(cur2
) != BLOBMSG_TYPE_STRING
)
805 DEBUG(3, "watch for %s\n", blobmsg_get_string(cur2
));
806 watch_add(blobmsg_get_string(cur2
), in
);
810 if ((cur
= tb
[INSTANCE_ATTR_NICE
])) {
811 in
->nice
= (int8_t) blobmsg_get_u32(cur
);
812 if (in
->nice
< -20 || in
->nice
> 20)
816 if (tb
[INSTANCE_ATTR_USER
]) {
817 struct passwd
*p
= getpwnam(blobmsg_get_string(tb
[INSTANCE_ATTR_USER
]));
824 if (tb
[INSTANCE_ATTR_TRACE
])
825 in
->trace
= blobmsg_get_bool(tb
[INSTANCE_ATTR_TRACE
]);
827 if (tb
[INSTANCE_ATTR_NO_NEW_PRIVS
])
828 in
->no_new_privs
= blobmsg_get_bool(tb
[INSTANCE_ATTR_NO_NEW_PRIVS
]);
830 if (!in
->trace
&& tb
[INSTANCE_ATTR_SECCOMP
]) {
831 char *seccomp
= blobmsg_get_string(tb
[INSTANCE_ATTR_SECCOMP
]);
834 if (stat(seccomp
, &s
))
835 ERROR("%s: not starting seccomp as %s is missing\n", in
->name
, seccomp
);
837 in
->seccomp
= seccomp
;
840 if (tb
[INSTANCE_ATTR_PIDFILE
]) {
841 char *pidfile
= blobmsg_get_string(tb
[INSTANCE_ATTR_PIDFILE
]);
843 in
->pidfile
= pidfile
;
846 if (!in
->trace
&& tb
[INSTANCE_ATTR_JAIL
])
847 in
->has_jail
= instance_jail_parse(in
, tb
[INSTANCE_ATTR_JAIL
]);
849 if (tb
[INSTANCE_ATTR_STDOUT
] && blobmsg_get_bool(tb
[INSTANCE_ATTR_STDOUT
]))
850 in
->_stdout
.fd
.fd
= -1;
852 if (tb
[INSTANCE_ATTR_STDERR
] && blobmsg_get_bool(tb
[INSTANCE_ATTR_STDERR
]))
853 in
->_stderr
.fd
.fd
= -1;
855 instance_fill_any(&in
->data
, tb
[INSTANCE_ATTR_DATA
]);
857 if (!instance_fill_array(&in
->env
, tb
[INSTANCE_ATTR_ENV
], NULL
, false))
860 if (!instance_fill_array(&in
->netdev
, tb
[INSTANCE_ATTR_NETDEV
], instance_netdev_update
, true))
863 if (!instance_fill_array(&in
->file
, tb
[INSTANCE_ATTR_FILE
], instance_file_update
, true))
866 if (!instance_fill_array(&in
->limits
, tb
[INSTANCE_ATTR_LIMITS
], NULL
, false))
869 if (!instance_fill_array(&in
->errors
, tb
[INSTANCE_ATTR_ERROR
], NULL
, true))
876 instance_config_cleanup(struct service_instance
*in
)
878 blobmsg_list_free(&in
->env
);
879 blobmsg_list_free(&in
->data
);
880 blobmsg_list_free(&in
->netdev
);
881 blobmsg_list_free(&in
->file
);
882 blobmsg_list_free(&in
->limits
);
883 blobmsg_list_free(&in
->errors
);
884 blobmsg_list_free(&in
->jail
.mount
);
888 instance_config_move(struct service_instance
*in
, struct service_instance
*in_src
)
890 instance_config_cleanup(in
);
891 blobmsg_list_move(&in
->env
, &in_src
->env
);
892 blobmsg_list_move(&in
->data
, &in_src
->data
);
893 blobmsg_list_move(&in
->netdev
, &in_src
->netdev
);
894 blobmsg_list_move(&in
->file
, &in_src
->file
);
895 blobmsg_list_move(&in
->limits
, &in_src
->limits
);
896 blobmsg_list_move(&in
->errors
, &in_src
->errors
);
897 blobmsg_list_move(&in
->jail
.mount
, &in_src
->jail
.mount
);
898 in
->trigger
= in_src
->trigger
;
899 in
->command
= in_src
->command
;
900 in
->pidfile
= in_src
->pidfile
;
901 in
->name
= in_src
->name
;
902 in
->node
.avl
.key
= in_src
->node
.avl
.key
;
905 in
->config
= in_src
->config
;
906 in_src
->config
= NULL
;
910 instance_update(struct service_instance
*in
, struct service_instance
*in_new
)
912 bool changed
= instance_config_changed(in
, in_new
);
913 bool running
= in
->proc
.pending
;
915 if (!changed
&& running
)
920 instance_config_move(in
, in_new
);
923 instance_restart(in
);
924 instance_config_move(in
, in_new
);
925 /* restart happens in the child callback handler */
931 instance_free(struct service_instance
*in
)
933 instance_free_stdio(in
);
934 uloop_process_delete(&in
->proc
);
935 uloop_timeout_cancel(&in
->timeout
);
938 instance_config_cleanup(in
);
944 instance_init(struct service_instance
*in
, struct service
*s
, struct blob_attr
*config
)
946 config
= blob_memdup(config
);
948 in
->name
= blobmsg_name(config
);
950 in
->timeout
.cb
= instance_timeout
;
951 in
->proc
.cb
= instance_exit
;
953 in
->_stdout
.fd
.fd
= -2;
954 in
->_stdout
.stream
.string_data
= true;
955 in
->_stdout
.stream
.notify_read
= instance_stdout
;
957 in
->_stderr
.fd
.fd
= -2;
958 in
->_stderr
.stream
.string_data
= true;
959 in
->_stderr
.stream
.notify_read
= instance_stderr
;
961 blobmsg_list_init(&in
->netdev
, struct instance_netdev
, node
, instance_netdev_cmp
);
962 blobmsg_list_init(&in
->file
, struct instance_file
, node
, instance_file_cmp
);
963 blobmsg_list_simple_init(&in
->env
);
964 blobmsg_list_simple_init(&in
->data
);
965 blobmsg_list_simple_init(&in
->limits
);
966 blobmsg_list_simple_init(&in
->errors
);
967 blobmsg_list_simple_init(&in
->jail
.mount
);
968 in
->valid
= instance_config_parse(in
);
971 void instance_dump(struct blob_buf
*b
, struct service_instance
*in
, int verbose
)
978 i
= blobmsg_open_table(b
, in
->name
);
979 blobmsg_add_u8(b
, "running", in
->proc
.pending
);
980 if (in
->proc
.pending
)
981 blobmsg_add_u32(b
, "pid", in
->proc
.pid
);
982 blobmsg_add_blob(b
, in
->command
);
984 if (!avl_is_empty(&in
->errors
.avl
)) {
985 struct blobmsg_list_node
*var
;
986 void *e
= blobmsg_open_array(b
, "errors");
987 blobmsg_list_for_each(&in
->errors
, var
)
988 blobmsg_add_string(b
, NULL
, blobmsg_data(var
->data
));
989 blobmsg_close_table(b
, e
);
992 if (!avl_is_empty(&in
->env
.avl
)) {
993 struct blobmsg_list_node
*var
;
994 void *e
= blobmsg_open_table(b
, "env");
995 blobmsg_list_for_each(&in
->env
, var
)
996 blobmsg_add_string(b
, blobmsg_name(var
->data
), blobmsg_data(var
->data
));
997 blobmsg_close_table(b
, e
);
1000 if (!avl_is_empty(&in
->data
.avl
)) {
1001 struct blobmsg_list_node
*var
;
1002 void *e
= blobmsg_open_table(b
, "data");
1003 blobmsg_list_for_each(&in
->data
, var
)
1004 blobmsg_add_blob(b
, var
->data
);
1005 blobmsg_close_table(b
, e
);
1008 if (!avl_is_empty(&in
->limits
.avl
)) {
1009 struct blobmsg_list_node
*var
;
1010 void *e
= blobmsg_open_table(b
, "limits");
1011 blobmsg_list_for_each(&in
->limits
, var
)
1012 blobmsg_add_string(b
, blobmsg_name(var
->data
), blobmsg_data(var
->data
));
1013 blobmsg_close_table(b
, e
);
1017 void *r
= blobmsg_open_table(b
, "respawn");
1018 blobmsg_add_u32(b
, "threshold", in
->respawn_threshold
);
1019 blobmsg_add_u32(b
, "timeout", in
->respawn_timeout
);
1020 blobmsg_add_u32(b
, "retry", in
->respawn_retry
);
1021 blobmsg_close_table(b
, r
);
1025 blobmsg_add_u8(b
, "trace", true);
1027 if (in
->no_new_privs
)
1028 blobmsg_add_u8(b
, "no_new_privs", true);
1031 blobmsg_add_string(b
, "seccomp", in
->seccomp
);
1034 blobmsg_add_string(b
, "pidfile", in
->pidfile
);
1037 void *r
= blobmsg_open_table(b
, "jail");
1039 blobmsg_add_string(b
, "name", in
->jail
.name
);
1040 if (in
->jail
.hostname
)
1041 blobmsg_add_string(b
, "hostname", in
->jail
.hostname
);
1042 blobmsg_add_u8(b
, "procfs", in
->jail
.procfs
);
1043 blobmsg_add_u8(b
, "sysfs", in
->jail
.sysfs
);
1044 blobmsg_add_u8(b
, "ubus", in
->jail
.ubus
);
1045 blobmsg_add_u8(b
, "log", in
->jail
.log
);
1046 blobmsg_add_u8(b
, "ronly", in
->jail
.ronly
);
1047 blobmsg_close_table(b
, r
);
1048 if (!avl_is_empty(&in
->jail
.mount
.avl
)) {
1049 struct blobmsg_list_node
*var
;
1050 void *e
= blobmsg_open_table(b
, "mount");
1051 blobmsg_list_for_each(&in
->jail
.mount
, var
)
1052 blobmsg_add_string(b
, blobmsg_name(var
->data
), blobmsg_data(var
->data
));
1053 blobmsg_close_table(b
, e
);
1057 if (verbose
&& in
->trigger
)
1058 blobmsg_add_blob(b
, in
->trigger
);
1060 blobmsg_close_table(b
, i
);