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>
32 #include <libubox/md5.h>
41 INSTANCE_ATTR_COMMAND
,
46 INSTANCE_ATTR_TRIGGER
,
47 INSTANCE_ATTR_RESPAWN
,
56 INSTANCE_ATTR_NO_NEW_PRIVS
,
59 INSTANCE_ATTR_SECCOMP
,
60 INSTANCE_ATTR_PIDFILE
,
61 INSTANCE_ATTR_RELOADSIG
,
62 INSTANCE_ATTR_TERMTIMEOUT
,
63 INSTANCE_ATTR_FACILITY
,
67 static const struct blobmsg_policy instance_attr
[__INSTANCE_ATTR_MAX
] = {
68 [INSTANCE_ATTR_COMMAND
] = { "command", BLOBMSG_TYPE_ARRAY
},
69 [INSTANCE_ATTR_ENV
] = { "env", BLOBMSG_TYPE_TABLE
},
70 [INSTANCE_ATTR_DATA
] = { "data", BLOBMSG_TYPE_TABLE
},
71 [INSTANCE_ATTR_NETDEV
] = { "netdev", BLOBMSG_TYPE_ARRAY
},
72 [INSTANCE_ATTR_FILE
] = { "file", BLOBMSG_TYPE_ARRAY
},
73 [INSTANCE_ATTR_TRIGGER
] = { "triggers", BLOBMSG_TYPE_ARRAY
},
74 [INSTANCE_ATTR_RESPAWN
] = { "respawn", BLOBMSG_TYPE_ARRAY
},
75 [INSTANCE_ATTR_NICE
] = { "nice", BLOBMSG_TYPE_INT32
},
76 [INSTANCE_ATTR_LIMITS
] = { "limits", BLOBMSG_TYPE_TABLE
},
77 [INSTANCE_ATTR_WATCH
] = { "watch", BLOBMSG_TYPE_ARRAY
},
78 [INSTANCE_ATTR_ERROR
] = { "error", BLOBMSG_TYPE_ARRAY
},
79 [INSTANCE_ATTR_USER
] = { "user", BLOBMSG_TYPE_STRING
},
80 [INSTANCE_ATTR_GROUP
] = { "group", BLOBMSG_TYPE_STRING
},
81 [INSTANCE_ATTR_STDOUT
] = { "stdout", BLOBMSG_TYPE_BOOL
},
82 [INSTANCE_ATTR_STDERR
] = { "stderr", BLOBMSG_TYPE_BOOL
},
83 [INSTANCE_ATTR_NO_NEW_PRIVS
] = { "no_new_privs", BLOBMSG_TYPE_BOOL
},
84 [INSTANCE_ATTR_JAIL
] = { "jail", BLOBMSG_TYPE_TABLE
},
85 [INSTANCE_ATTR_TRACE
] = { "trace", BLOBMSG_TYPE_BOOL
},
86 [INSTANCE_ATTR_SECCOMP
] = { "seccomp", BLOBMSG_TYPE_STRING
},
87 [INSTANCE_ATTR_PIDFILE
] = { "pidfile", BLOBMSG_TYPE_STRING
},
88 [INSTANCE_ATTR_RELOADSIG
] = { "reload_signal", BLOBMSG_TYPE_INT32
},
89 [INSTANCE_ATTR_TERMTIMEOUT
] = { "term_timeout", BLOBMSG_TYPE_INT32
},
90 [INSTANCE_ATTR_FACILITY
] = { "facility", BLOBMSG_TYPE_STRING
},
105 static const struct blobmsg_policy jail_attr
[__JAIL_ATTR_MAX
] = {
106 [JAIL_ATTR_NAME
] = { "name", BLOBMSG_TYPE_STRING
},
107 [JAIL_ATTR_HOSTNAME
] = { "hostname", BLOBMSG_TYPE_STRING
},
108 [JAIL_ATTR_PROCFS
] = { "procfs", BLOBMSG_TYPE_BOOL
},
109 [JAIL_ATTR_SYSFS
] = { "sysfs", BLOBMSG_TYPE_BOOL
},
110 [JAIL_ATTR_UBUS
] = { "ubus", BLOBMSG_TYPE_BOOL
},
111 [JAIL_ATTR_LOG
] = { "log", BLOBMSG_TYPE_BOOL
},
112 [JAIL_ATTR_RONLY
] = { "ronly", BLOBMSG_TYPE_BOOL
},
113 [JAIL_ATTR_MOUNT
] = { "mount", BLOBMSG_TYPE_TABLE
},
116 struct instance_netdev
{
117 struct blobmsg_list_node node
;
121 struct instance_file
{
122 struct blobmsg_list_node node
;
131 static const struct rlimit_name rlimit_names
[] = {
133 { "core", RLIMIT_CORE
},
134 { "cpu", RLIMIT_CPU
},
135 { "data", RLIMIT_DATA
},
136 { "fsize", RLIMIT_FSIZE
},
137 { "memlock", RLIMIT_MEMLOCK
},
138 { "nofile", RLIMIT_NOFILE
},
139 { "nproc", RLIMIT_NPROC
},
140 { "rss", RLIMIT_RSS
},
141 { "stack", RLIMIT_STACK
},
143 { "nice", RLIMIT_NICE
},
144 { "rtprio", RLIMIT_RTPRIO
},
145 { "msgqueue", RLIMIT_MSGQUEUE
},
146 { "sigpending", RLIMIT_SIGPENDING
},
151 static void closefd(int fd
)
153 if (fd
> STDERR_FILENO
)
157 /* convert a string into numeric syslog facility or return -1 if no match found */
159 syslog_facility_str_to_int(const char *facility
)
161 CODE
*p
= facilitynames
;
163 while (p
->c_name
&& strcasecmp(p
->c_name
, facility
))
170 instance_limits(const char *limit
, const char *value
)
174 unsigned long cur
, max
;
176 for (i
= 0; rlimit_names
[i
].name
!= NULL
; i
++) {
177 if (strcmp(rlimit_names
[i
].name
, limit
))
179 if (!strcmp(value
, "unlimited")) {
180 rlim
.rlim_cur
= RLIM_INFINITY
;
181 rlim
.rlim_max
= RLIM_INFINITY
;
183 if (getrlimit(rlimit_names
[i
].resource
, &rlim
))
189 if (sscanf(value
, "%lu %lu", &cur
, &max
) < 1)
196 setrlimit(rlimit_names
[i
].resource
, &rlim
);
202 jail_run(struct service_instance
*in
, char **argv
)
204 struct blobmsg_list_node
*var
;
205 struct jail
*jail
= &in
->jail
;
208 argv
[argc
++] = "/sbin/ujail";
212 argv
[argc
++] = jail
->name
;
215 if (jail
->hostname
) {
217 argv
[argc
++] = jail
->hostname
;
222 argv
[argc
++] = in
->seccomp
;
225 if (in
->no_new_privs
)
243 blobmsg_list_for_each(&jail
->mount
, var
) {
244 const char *type
= blobmsg_data(var
->data
);
250 argv
[argc
++] = (char *) blobmsg_name(var
->data
);
259 instance_removepid(struct service_instance
*in
) {
262 if (unlink(in
->pidfile
)) {
263 ERROR("Failed to removed pidfile: %s: %m\n", in
->pidfile
);
270 instance_writepid(struct service_instance
*in
)
277 _pidfile
= fopen(in
->pidfile
, "w");
278 if (_pidfile
== NULL
) {
279 ERROR("failed to open pidfile for writing: %s: %m", in
->pidfile
);
282 if (fprintf(_pidfile
, "%d\n", in
->proc
.pid
) < 0) {
283 ERROR("failed to write pidfile: %s: %m", in
->pidfile
);
287 if (fclose(_pidfile
)) {
288 ERROR("failed to close pidfile: %s: %m", in
->pidfile
);
296 instance_run(struct service_instance
*in
, int _stdout
, int _stderr
)
298 struct blobmsg_list_node
*var
;
299 struct blob_attr
*cur
;
301 int argc
= 1; /* NULL terminated */
303 bool seccomp
= !in
->trace
&& !in
->has_jail
&& in
->seccomp
;
304 bool setlbf
= _stdout
>= 0;
307 setpriority(PRIO_PROCESS
, 0, in
->nice
);
309 blobmsg_for_each_attr(cur
, in
->command
, rem
)
312 blobmsg_list_for_each(&in
->env
, var
)
313 setenv(blobmsg_name(var
->data
), blobmsg_data(var
->data
), 1);
316 setenv("SECCOMP_FILE", in
->seccomp
, 1);
319 setenv("LD_PRELOAD", "/lib/libsetlbf.so", 1);
321 blobmsg_list_for_each(&in
->limits
, var
)
322 instance_limits(blobmsg_name(var
->data
), blobmsg_data(var
->data
));
324 if (in
->trace
|| seccomp
)
327 argv
= alloca(sizeof(char *) * (argc
+ in
->jail
.argc
));
330 #ifdef SECCOMP_SUPPORT
332 argv
[argc
++] = "/sbin/utrace";
334 argv
[argc
++] = "/sbin/seccomp-trace";
336 if (in
->trace
|| seccomp
)
337 ULOG_WARN("Seccomp support for %s::%s not available\n", in
->srv
->name
, in
->name
);
341 argc
= jail_run(in
, argv
);
343 blobmsg_for_each_attr(cur
, in
->command
, rem
)
344 argv
[argc
++] = blobmsg_data(cur
);
348 _stdin
= open("/dev/null", O_RDONLY
);
351 _stdout
= open("/dev/null", O_WRONLY
);
354 _stderr
= open("/dev/null", O_WRONLY
);
357 dup2(_stdin
, STDIN_FILENO
);
361 dup2(_stdout
, STDOUT_FILENO
);
365 dup2(_stderr
, STDERR_FILENO
);
369 if (in
->user
&& in
->pw_gid
&& initgroups(in
->user
, in
->pw_gid
)) {
370 ERROR("failed to initgroups() for user %s: %m\n", in
->user
);
373 if (in
->gr_gid
&& setgid(in
->gr_gid
)) {
374 ERROR("failed to set group id %d: %m\n", in
->gr_gid
);
377 if (in
->uid
&& setuid(in
->uid
)) {
378 ERROR("failed to set user id %d: %m\n", in
->uid
);
382 execvp(argv
[0], argv
);
387 instance_free_stdio(struct service_instance
*in
)
389 if (in
->_stdout
.fd
.fd
> -1) {
390 ustream_free(&in
->_stdout
.stream
);
391 close(in
->_stdout
.fd
.fd
);
392 in
->_stdout
.fd
.fd
= -1;
395 if (in
->_stderr
.fd
.fd
> -1) {
396 ustream_free(&in
->_stderr
.stream
);
397 close(in
->_stderr
.fd
.fd
);
398 in
->_stderr
.fd
.fd
= -1;
403 instance_start(struct service_instance
*in
)
406 int opipe
[2] = { -1, -1 };
407 int epipe
[2] = { -1, -1 };
409 if (!avl_is_empty(&in
->errors
.avl
)) {
410 LOG("Not starting instance %s::%s, an error was indicated\n", in
->srv
->name
, in
->name
);
415 LOG("Not starting instance %s::%s, command not set\n", in
->srv
->name
, in
->name
);
419 if (in
->proc
.pending
) {
425 instance_free_stdio(in
);
426 if (in
->_stdout
.fd
.fd
> -2) {
428 ULOG_WARN("pipe() failed: %m\n");
429 opipe
[0] = opipe
[1] = -1;
433 if (in
->_stderr
.fd
.fd
> -2) {
435 ULOG_WARN("pipe() failed: %m\n");
436 epipe
[0] = epipe
[1] = -1;
454 instance_run(in
, opipe
[1], epipe
[1]);
458 DEBUG(2, "Started instance %s::%s[%d]\n", in
->srv
->name
, in
->name
, pid
);
460 instance_writepid(in
);
461 clock_gettime(CLOCK_MONOTONIC
, &in
->start
);
462 uloop_process_add(&in
->proc
);
465 ustream_fd_init(&in
->_stdout
, opipe
[0]);
467 fcntl(opipe
[0], F_SETFD
, FD_CLOEXEC
);
471 ustream_fd_init(&in
->_stderr
, epipe
[0]);
473 fcntl(epipe
[0], F_SETFD
, FD_CLOEXEC
);
476 service_event("instance.start", in
->srv
->name
, in
->name
);
480 instance_stdio(struct ustream
*s
, int prio
, struct service_instance
*in
)
482 char *newline
, *str
, *arg0
, ident
[32];
485 arg0
= basename(blobmsg_data(blobmsg_data(in
->command
)));
486 snprintf(ident
, sizeof(ident
), "%s[%d]", arg0
, in
->proc
.pid
);
487 ulog_open(ULOG_SYSLOG
, in
->syslog_facility
, ident
);
490 str
= ustream_get_read_buf(s
, &len
);
494 newline
= memchr(str
, '\n', len
);
495 if (!newline
&& (s
->r
.buffer_len
!= len
))
500 len
= newline
+ 1 - str
;
502 ulog(prio
, "%s\n", str
);
504 ustream_consume(s
, len
);
507 ulog_open(ULOG_SYSLOG
, LOG_DAEMON
, "procd");
511 instance_stdout(struct ustream
*s
, int bytes
)
513 instance_stdio(s
, LOG_INFO
,
514 container_of(s
, struct service_instance
, _stdout
.stream
));
518 instance_stderr(struct ustream
*s
, int bytes
)
520 instance_stdio(s
, LOG_ERR
,
521 container_of(s
, struct service_instance
, _stderr
.stream
));
525 instance_timeout(struct uloop_timeout
*t
)
527 struct service_instance
*in
;
529 in
= container_of(t
, struct service_instance
, timeout
);
532 LOG("Instance %s::%s pid %d not stopped on SIGTERM, sending SIGKILL instead\n",
533 in
->srv
->name
, in
->name
, in
->proc
.pid
);
534 kill(in
->proc
.pid
, SIGKILL
);
535 } else if (in
->restart
|| in
->respawn
)
540 instance_delete(struct service_instance
*in
)
542 struct service
*s
= in
->srv
;
544 avl_delete(&s
->instances
.avl
, &in
->node
.avl
);
550 instance_exit(struct uloop_process
*p
, int ret
)
552 struct service_instance
*in
;
556 in
= container_of(p
, struct service_instance
, proc
);
558 clock_gettime(CLOCK_MONOTONIC
, &tp
);
559 runtime
= tp
.tv_sec
- in
->start
.tv_sec
;
561 DEBUG(2, "Instance %s::%s exit with error code %d after %ld seconds\n", in
->srv
->name
, in
->name
, ret
, runtime
);
563 uloop_timeout_cancel(&in
->timeout
);
564 service_event("instance.stop", in
->srv
->name
, in
->name
);
567 instance_removepid(in
);
572 } else if (in
->restart
) {
574 } else if (in
->respawn
) {
575 if (runtime
< in
->respawn_threshold
)
578 in
->respawn_count
= 0;
579 if (in
->respawn_count
> in
->respawn_retry
&& in
->respawn_retry
> 0 ) {
580 LOG("Instance %s::%s s in a crash loop %d crashes, %ld seconds since last crash\n",
581 in
->srv
->name
, in
->name
, in
->respawn_count
, runtime
);
582 in
->restart
= in
->respawn
= 0;
584 service_event("instance.fail", in
->srv
->name
, in
->name
);
586 service_event("instance.respawn", in
->srv
->name
, in
->name
);
587 uloop_timeout_set(&in
->timeout
, in
->respawn_timeout
* 1000);
593 instance_stop(struct service_instance
*in
, bool halt
)
595 if (!in
->proc
.pending
) {
601 in
->restart
= in
->respawn
= false;
602 kill(in
->proc
.pid
, SIGTERM
);
603 uloop_timeout_set(&in
->timeout
, in
->term_timeout
* 1000);
607 instance_restart(struct service_instance
*in
)
609 if (!in
->proc
.pending
)
612 if (in
->reload_signal
) {
613 kill(in
->proc
.pid
, in
->reload_signal
);
619 kill(in
->proc
.pid
, SIGTERM
);
620 uloop_timeout_set(&in
->timeout
, in
->term_timeout
* 1000);
623 static bool string_changed(const char *a
, const char *b
)
625 return !((!a
&& !b
) || (a
&& b
&& !strcmp(a
, b
)));
629 instance_config_changed(struct service_instance
*in
, struct service_instance
*in_new
)
634 if (!blob_attr_equal(in
->command
, in_new
->command
))
637 if (!blobmsg_list_equal(&in
->env
, &in_new
->env
))
640 if (!blobmsg_list_equal(&in
->netdev
, &in_new
->netdev
))
643 if (!blobmsg_list_equal(&in
->file
, &in_new
->file
))
646 if (in
->nice
!= in_new
->nice
)
649 if (in
->syslog_facility
!= in_new
->syslog_facility
)
652 if (string_changed(in
->user
, in_new
->user
))
655 if (string_changed(in
->group
, in_new
->group
))
658 if (in
->uid
!= in_new
->uid
)
661 if (in
->pw_gid
!= in_new
->pw_gid
)
664 if (string_changed(in
->pidfile
, in_new
->pidfile
))
667 if (in
->respawn_retry
!= in_new
->respawn_retry
)
669 if (in
->respawn_threshold
!= in_new
->respawn_threshold
)
671 if (in
->respawn_timeout
!= in_new
->respawn_timeout
)
674 if ((!in
->seccomp
&& in_new
->seccomp
) ||
675 (in
->seccomp
&& !in_new
->seccomp
) ||
676 (in
->seccomp
&& in_new
->seccomp
&& strcmp(in
->seccomp
, in_new
->seccomp
)))
679 if (!blobmsg_list_equal(&in
->limits
, &in_new
->limits
))
682 if (!blobmsg_list_equal(&in
->jail
.mount
, &in_new
->jail
.mount
))
685 if (!blobmsg_list_equal(&in
->errors
, &in_new
->errors
))
692 instance_netdev_cmp(struct blobmsg_list_node
*l1
, struct blobmsg_list_node
*l2
)
694 struct instance_netdev
*n1
= container_of(l1
, struct instance_netdev
, node
);
695 struct instance_netdev
*n2
= container_of(l2
, struct instance_netdev
, node
);
697 return n1
->ifindex
== n2
->ifindex
;
701 instance_netdev_update(struct blobmsg_list_node
*l
)
703 struct instance_netdev
*n
= container_of(l
, struct instance_netdev
, node
);
705 n
->ifindex
= if_nametoindex(n
->node
.avl
.key
);
709 instance_file_cmp(struct blobmsg_list_node
*l1
, struct blobmsg_list_node
*l2
)
711 struct instance_file
*f1
= container_of(l1
, struct instance_file
, node
);
712 struct instance_file
*f2
= container_of(l2
, struct instance_file
, node
);
714 return !memcmp(f1
->md5
, f2
->md5
, sizeof(f1
->md5
));
718 instance_file_update(struct blobmsg_list_node
*l
)
720 struct instance_file
*f
= container_of(l
, struct instance_file
, node
);
725 memset(f
->md5
, 0, sizeof(f
->md5
));
727 fd
= open(l
->avl
.key
, O_RDONLY
);
733 len
= read(fd
, buf
, sizeof(buf
));
743 md5_hash(buf
, len
, &md5
);
746 md5_end(f
->md5
, &md5
);
751 instance_fill_any(struct blobmsg_list
*l
, struct blob_attr
*cur
)
756 blobmsg_list_fill(l
, blobmsg_data(cur
), blobmsg_data_len(cur
), false);
760 instance_fill_array(struct blobmsg_list
*l
, struct blob_attr
*cur
, blobmsg_update_cb cb
, bool array
)
762 struct blobmsg_list_node
*node
;
767 if (!blobmsg_check_attr_list(cur
, BLOBMSG_TYPE_STRING
))
770 blobmsg_list_fill(l
, blobmsg_data(cur
), blobmsg_data_len(cur
), array
);
772 blobmsg_list_for_each(l
, node
)
779 instance_jail_parse(struct service_instance
*in
, struct blob_attr
*attr
)
781 struct blob_attr
*tb
[__JAIL_ATTR_MAX
];
782 struct jail
*jail
= &in
->jail
;
785 if (stat("/sbin/ujail", &s
))
788 blobmsg_parse(jail_attr
, __JAIL_ATTR_MAX
, tb
,
789 blobmsg_data(attr
), blobmsg_data_len(attr
));
793 if (tb
[JAIL_ATTR_NAME
]) {
794 jail
->name
= blobmsg_get_string(tb
[JAIL_ATTR_NAME
]);
797 if (tb
[JAIL_ATTR_HOSTNAME
]) {
798 jail
->hostname
= blobmsg_get_string(tb
[JAIL_ATTR_HOSTNAME
]);
801 if (tb
[JAIL_ATTR_PROCFS
]) {
802 jail
->procfs
= blobmsg_get_bool(tb
[JAIL_ATTR_PROCFS
]);
805 if (tb
[JAIL_ATTR_SYSFS
]) {
806 jail
->sysfs
= blobmsg_get_bool(tb
[JAIL_ATTR_SYSFS
]);
809 if (tb
[JAIL_ATTR_UBUS
]) {
810 jail
->ubus
= blobmsg_get_bool(tb
[JAIL_ATTR_UBUS
]);
813 if (tb
[JAIL_ATTR_LOG
]) {
814 jail
->log
= blobmsg_get_bool(tb
[JAIL_ATTR_LOG
]);
817 if (tb
[JAIL_ATTR_RONLY
]) {
818 jail
->ronly
= blobmsg_get_bool(tb
[JAIL_ATTR_RONLY
]);
821 if (tb
[JAIL_ATTR_MOUNT
]) {
822 struct blob_attr
*cur
;
825 blobmsg_for_each_attr(cur
, tb
[JAIL_ATTR_MOUNT
], rem
)
827 instance_fill_array(&jail
->mount
, tb
[JAIL_ATTR_MOUNT
], NULL
, false);
832 if (in
->no_new_privs
)
839 instance_config_parse_command(struct service_instance
*in
, struct blob_attr
**tb
)
841 struct blob_attr
*cur
, *cur2
;
845 cur
= tb
[INSTANCE_ATTR_COMMAND
];
851 if (!blobmsg_check_attr_list(cur
, BLOBMSG_TYPE_STRING
))
854 blobmsg_for_each_attr(cur2
, cur
, rem
) {
864 instance_config_parse(struct service_instance
*in
)
866 struct blob_attr
*tb
[__INSTANCE_ATTR_MAX
];
867 struct blob_attr
*cur
, *cur2
;
870 blobmsg_parse(instance_attr
, __INSTANCE_ATTR_MAX
, tb
,
871 blobmsg_data(in
->config
), blobmsg_data_len(in
->config
));
873 if (!instance_config_parse_command(in
, tb
))
876 if (tb
[INSTANCE_ATTR_TERMTIMEOUT
])
877 in
->term_timeout
= blobmsg_get_u32(tb
[INSTANCE_ATTR_TERMTIMEOUT
]);
878 if (tb
[INSTANCE_ATTR_RESPAWN
]) {
880 uint32_t vals
[3] = { 3600, 5, 5};
882 blobmsg_for_each_attr(cur2
, tb
[INSTANCE_ATTR_RESPAWN
], rem
) {
883 if ((i
>= 3) && (blobmsg_type(cur2
) == BLOBMSG_TYPE_STRING
))
885 vals
[i
] = atoi(blobmsg_get_string(cur2
));
889 in
->respawn_count
= 0;
890 in
->respawn_threshold
= vals
[0];
891 in
->respawn_timeout
= vals
[1];
892 in
->respawn_retry
= vals
[2];
894 if (tb
[INSTANCE_ATTR_TRIGGER
]) {
895 in
->trigger
= tb
[INSTANCE_ATTR_TRIGGER
];
896 trigger_add(in
->trigger
, in
);
899 if (tb
[INSTANCE_ATTR_WATCH
]) {
900 blobmsg_for_each_attr(cur2
, tb
[INSTANCE_ATTR_WATCH
], rem
) {
901 if (blobmsg_type(cur2
) != BLOBMSG_TYPE_STRING
)
903 DEBUG(3, "watch for %s\n", blobmsg_get_string(cur2
));
904 watch_add(blobmsg_get_string(cur2
), in
);
908 if ((cur
= tb
[INSTANCE_ATTR_NICE
])) {
909 in
->nice
= (int8_t) blobmsg_get_u32(cur
);
910 if (in
->nice
< -20 || in
->nice
> 20)
914 if (tb
[INSTANCE_ATTR_USER
]) {
915 const char *user
= blobmsg_get_string(tb
[INSTANCE_ATTR_USER
]);
916 struct passwd
*p
= getpwnam(user
);
918 in
->user
= strdup(user
);
920 in
->gr_gid
= in
->pw_gid
= p
->pw_gid
;
924 if (tb
[INSTANCE_ATTR_GROUP
]) {
925 const char *group
= blobmsg_get_string(tb
[INSTANCE_ATTR_GROUP
]);
926 struct group
*p
= getgrnam(group
);
928 in
->group
= strdup(group
);
929 in
->gr_gid
= p
->gr_gid
;
933 if (tb
[INSTANCE_ATTR_TRACE
])
934 in
->trace
= blobmsg_get_bool(tb
[INSTANCE_ATTR_TRACE
]);
936 if (tb
[INSTANCE_ATTR_NO_NEW_PRIVS
])
937 in
->no_new_privs
= blobmsg_get_bool(tb
[INSTANCE_ATTR_NO_NEW_PRIVS
]);
939 if (!in
->trace
&& tb
[INSTANCE_ATTR_SECCOMP
])
940 in
->seccomp
= blobmsg_get_string(tb
[INSTANCE_ATTR_SECCOMP
]);
942 if (tb
[INSTANCE_ATTR_PIDFILE
]) {
943 char *pidfile
= blobmsg_get_string(tb
[INSTANCE_ATTR_PIDFILE
]);
945 in
->pidfile
= pidfile
;
948 if (tb
[INSTANCE_ATTR_RELOADSIG
])
949 in
->reload_signal
= blobmsg_get_u32(tb
[INSTANCE_ATTR_RELOADSIG
]);
951 if (!in
->trace
&& tb
[INSTANCE_ATTR_JAIL
])
952 in
->has_jail
= instance_jail_parse(in
, tb
[INSTANCE_ATTR_JAIL
]);
954 if (tb
[INSTANCE_ATTR_STDOUT
] && blobmsg_get_bool(tb
[INSTANCE_ATTR_STDOUT
]))
955 in
->_stdout
.fd
.fd
= -1;
957 if (tb
[INSTANCE_ATTR_STDERR
] && blobmsg_get_bool(tb
[INSTANCE_ATTR_STDERR
]))
958 in
->_stderr
.fd
.fd
= -1;
960 instance_fill_any(&in
->data
, tb
[INSTANCE_ATTR_DATA
]);
962 if (!instance_fill_array(&in
->env
, tb
[INSTANCE_ATTR_ENV
], NULL
, false))
965 if (!instance_fill_array(&in
->netdev
, tb
[INSTANCE_ATTR_NETDEV
], instance_netdev_update
, true))
968 if (!instance_fill_array(&in
->file
, tb
[INSTANCE_ATTR_FILE
], instance_file_update
, true))
971 if (!instance_fill_array(&in
->limits
, tb
[INSTANCE_ATTR_LIMITS
], NULL
, false))
974 if (!instance_fill_array(&in
->errors
, tb
[INSTANCE_ATTR_ERROR
], NULL
, true))
977 if (tb
[INSTANCE_ATTR_FACILITY
]) {
978 int facility
= syslog_facility_str_to_int(blobmsg_get_string(tb
[INSTANCE_ATTR_FACILITY
]));
979 if (facility
!= -1) {
980 in
->syslog_facility
= facility
;
981 DEBUG(3, "setting facility '%s'\n", blobmsg_get_string(tb
[INSTANCE_ATTR_FACILITY
]));
983 DEBUG(3, "unknown syslog facility '%s' given, using default (LOG_DAEMON)\n", blobmsg_get_string(tb
[INSTANCE_ATTR_FACILITY
]));
990 instance_config_cleanup(struct service_instance
*in
)
992 blobmsg_list_free(&in
->env
);
993 blobmsg_list_free(&in
->data
);
994 blobmsg_list_free(&in
->netdev
);
995 blobmsg_list_free(&in
->file
);
996 blobmsg_list_free(&in
->limits
);
997 blobmsg_list_free(&in
->errors
);
998 blobmsg_list_free(&in
->jail
.mount
);
1002 instance_config_move(struct service_instance
*in
, struct service_instance
*in_src
)
1004 instance_config_cleanup(in
);
1005 blobmsg_list_move(&in
->env
, &in_src
->env
);
1006 blobmsg_list_move(&in
->data
, &in_src
->data
);
1007 blobmsg_list_move(&in
->netdev
, &in_src
->netdev
);
1008 blobmsg_list_move(&in
->file
, &in_src
->file
);
1009 blobmsg_list_move(&in
->limits
, &in_src
->limits
);
1010 blobmsg_list_move(&in
->errors
, &in_src
->errors
);
1011 blobmsg_list_move(&in
->jail
.mount
, &in_src
->jail
.mount
);
1012 in
->trigger
= in_src
->trigger
;
1013 in
->command
= in_src
->command
;
1014 in
->pidfile
= in_src
->pidfile
;
1015 in
->respawn
= in_src
->respawn
;
1016 in
->respawn_retry
= in_src
->respawn_retry
;
1017 in
->respawn_threshold
= in_src
->respawn_threshold
;
1018 in
->respawn_timeout
= in_src
->respawn_timeout
;
1019 in
->name
= in_src
->name
;
1020 in
->trace
= in_src
->trace
;
1021 in
->seccomp
= in_src
->seccomp
;
1022 in
->node
.avl
.key
= in_src
->node
.avl
.key
;
1023 in
->syslog_facility
= in_src
->syslog_facility
;
1026 in
->config
= in_src
->config
;
1027 in_src
->config
= NULL
;
1031 instance_update(struct service_instance
*in
, struct service_instance
*in_new
)
1033 bool changed
= instance_config_changed(in
, in_new
);
1034 bool running
= in
->proc
.pending
;
1035 bool stopping
= in
->halt
;
1037 if (!running
|| stopping
) {
1038 instance_config_move(in
, in_new
);
1042 instance_restart(in
);
1043 instance_config_move(in
, in_new
);
1044 /* restart happens in the child callback handler */
1049 instance_free(struct service_instance
*in
)
1051 instance_free_stdio(in
);
1052 uloop_process_delete(&in
->proc
);
1053 uloop_timeout_cancel(&in
->timeout
);
1056 instance_config_cleanup(in
);
1064 instance_init(struct service_instance
*in
, struct service
*s
, struct blob_attr
*config
)
1066 config
= blob_memdup(config
);
1068 in
->name
= blobmsg_name(config
);
1069 in
->config
= config
;
1070 in
->timeout
.cb
= instance_timeout
;
1071 in
->proc
.cb
= instance_exit
;
1072 in
->term_timeout
= 5;
1073 in
->syslog_facility
= LOG_DAEMON
;
1075 in
->_stdout
.fd
.fd
= -2;
1076 in
->_stdout
.stream
.string_data
= true;
1077 in
->_stdout
.stream
.notify_read
= instance_stdout
;
1079 in
->_stderr
.fd
.fd
= -2;
1080 in
->_stderr
.stream
.string_data
= true;
1081 in
->_stderr
.stream
.notify_read
= instance_stderr
;
1083 blobmsg_list_init(&in
->netdev
, struct instance_netdev
, node
, instance_netdev_cmp
);
1084 blobmsg_list_init(&in
->file
, struct instance_file
, node
, instance_file_cmp
);
1085 blobmsg_list_simple_init(&in
->env
);
1086 blobmsg_list_simple_init(&in
->data
);
1087 blobmsg_list_simple_init(&in
->limits
);
1088 blobmsg_list_simple_init(&in
->errors
);
1089 blobmsg_list_simple_init(&in
->jail
.mount
);
1090 in
->valid
= instance_config_parse(in
);
1093 void instance_dump(struct blob_buf
*b
, struct service_instance
*in
, int verbose
)
1100 i
= blobmsg_open_table(b
, in
->name
);
1101 blobmsg_add_u8(b
, "running", in
->proc
.pending
);
1102 if (in
->proc
.pending
)
1103 blobmsg_add_u32(b
, "pid", in
->proc
.pid
);
1105 blobmsg_add_blob(b
, in
->command
);
1106 blobmsg_add_u32(b
, "term_timeout", in
->term_timeout
);
1108 if (!avl_is_empty(&in
->errors
.avl
)) {
1109 struct blobmsg_list_node
*var
;
1110 void *e
= blobmsg_open_array(b
, "errors");
1111 blobmsg_list_for_each(&in
->errors
, var
)
1112 blobmsg_add_string(b
, NULL
, blobmsg_data(var
->data
));
1113 blobmsg_close_table(b
, e
);
1116 if (!avl_is_empty(&in
->env
.avl
)) {
1117 struct blobmsg_list_node
*var
;
1118 void *e
= blobmsg_open_table(b
, "env");
1119 blobmsg_list_for_each(&in
->env
, var
)
1120 blobmsg_add_string(b
, blobmsg_name(var
->data
), blobmsg_data(var
->data
));
1121 blobmsg_close_table(b
, e
);
1124 if (!avl_is_empty(&in
->data
.avl
)) {
1125 struct blobmsg_list_node
*var
;
1126 void *e
= blobmsg_open_table(b
, "data");
1127 blobmsg_list_for_each(&in
->data
, var
)
1128 blobmsg_add_blob(b
, var
->data
);
1129 blobmsg_close_table(b
, e
);
1132 if (!avl_is_empty(&in
->limits
.avl
)) {
1133 struct blobmsg_list_node
*var
;
1134 void *e
= blobmsg_open_table(b
, "limits");
1135 blobmsg_list_for_each(&in
->limits
, var
)
1136 blobmsg_add_string(b
, blobmsg_name(var
->data
), blobmsg_data(var
->data
));
1137 blobmsg_close_table(b
, e
);
1140 if (in
->reload_signal
)
1141 blobmsg_add_u32(b
, "reload_signal", in
->reload_signal
);
1144 void *r
= blobmsg_open_table(b
, "respawn");
1145 blobmsg_add_u32(b
, "threshold", in
->respawn_threshold
);
1146 blobmsg_add_u32(b
, "timeout", in
->respawn_timeout
);
1147 blobmsg_add_u32(b
, "retry", in
->respawn_retry
);
1148 blobmsg_close_table(b
, r
);
1152 blobmsg_add_u8(b
, "trace", true);
1154 if (in
->no_new_privs
)
1155 blobmsg_add_u8(b
, "no_new_privs", true);
1158 blobmsg_add_string(b
, "seccomp", in
->seccomp
);
1161 blobmsg_add_string(b
, "pidfile", in
->pidfile
);
1164 blobmsg_add_string(b
, "user", in
->user
);
1167 blobmsg_add_string(b
, "group", in
->group
);
1170 void *r
= blobmsg_open_table(b
, "jail");
1172 blobmsg_add_string(b
, "name", in
->jail
.name
);
1173 if (in
->jail
.hostname
)
1174 blobmsg_add_string(b
, "hostname", in
->jail
.hostname
);
1175 blobmsg_add_u8(b
, "procfs", in
->jail
.procfs
);
1176 blobmsg_add_u8(b
, "sysfs", in
->jail
.sysfs
);
1177 blobmsg_add_u8(b
, "ubus", in
->jail
.ubus
);
1178 blobmsg_add_u8(b
, "log", in
->jail
.log
);
1179 blobmsg_add_u8(b
, "ronly", in
->jail
.ronly
);
1180 blobmsg_close_table(b
, r
);
1181 if (!avl_is_empty(&in
->jail
.mount
.avl
)) {
1182 struct blobmsg_list_node
*var
;
1183 void *e
= blobmsg_open_table(b
, "mount");
1184 blobmsg_list_for_each(&in
->jail
.mount
, var
)
1185 blobmsg_add_string(b
, blobmsg_name(var
->data
), blobmsg_data(var
->data
));
1186 blobmsg_close_table(b
, e
);
1190 if (verbose
&& in
->trigger
)
1191 blobmsg_add_blob(b
, in
->trigger
);
1193 blobmsg_close_table(b
, i
);