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
;
227 argv
[argc
++] = in
->user
;
232 argv
[argc
++] = in
->group
;
235 if (in
->no_new_privs
)
253 blobmsg_list_for_each(&jail
->mount
, var
) {
254 const char *type
= blobmsg_data(var
->data
);
260 argv
[argc
++] = (char *) blobmsg_name(var
->data
);
269 instance_removepid(struct service_instance
*in
) {
272 if (unlink(in
->pidfile
)) {
273 ERROR("Failed to removed pidfile: %s: %m\n", in
->pidfile
);
280 instance_writepid(struct service_instance
*in
)
287 _pidfile
= fopen(in
->pidfile
, "w");
288 if (_pidfile
== NULL
) {
289 ERROR("failed to open pidfile for writing: %s: %m", in
->pidfile
);
292 if (fprintf(_pidfile
, "%d\n", in
->proc
.pid
) < 0) {
293 ERROR("failed to write pidfile: %s: %m", in
->pidfile
);
297 if (fclose(_pidfile
)) {
298 ERROR("failed to close pidfile: %s: %m", in
->pidfile
);
306 instance_run(struct service_instance
*in
, int _stdout
, int _stderr
)
308 struct blobmsg_list_node
*var
;
309 struct blob_attr
*cur
;
311 int argc
= 1; /* NULL terminated */
313 bool seccomp
= !in
->trace
&& !in
->has_jail
&& in
->seccomp
;
314 bool setlbf
= _stdout
>= 0;
317 setpriority(PRIO_PROCESS
, 0, in
->nice
);
319 blobmsg_for_each_attr(cur
, in
->command
, rem
)
322 blobmsg_list_for_each(&in
->env
, var
)
323 setenv(blobmsg_name(var
->data
), blobmsg_data(var
->data
), 1);
326 setenv("SECCOMP_FILE", in
->seccomp
, 1);
329 setenv("LD_PRELOAD", "/lib/libsetlbf.so", 1);
331 blobmsg_list_for_each(&in
->limits
, var
)
332 instance_limits(blobmsg_name(var
->data
), blobmsg_data(var
->data
));
334 if (in
->trace
|| seccomp
)
337 argv
= alloca(sizeof(char *) * (argc
+ in
->jail
.argc
));
340 #ifdef SECCOMP_SUPPORT
342 argv
[argc
++] = "/sbin/utrace";
344 argv
[argc
++] = "/sbin/seccomp-trace";
346 if (in
->trace
|| seccomp
)
347 ULOG_WARN("Seccomp support for %s::%s not available\n", in
->srv
->name
, in
->name
);
351 argc
= jail_run(in
, argv
);
352 if (argc
!= in
->jail
.argc
)
353 ULOG_WARN("expected %i jail params, used %i for %s::%s\n",
354 in
->jail
.argc
, argc
, in
->srv
->name
, in
->name
);
357 blobmsg_for_each_attr(cur
, in
->command
, rem
)
358 argv
[argc
++] = blobmsg_data(cur
);
362 _stdin
= open("/dev/null", O_RDONLY
);
365 _stdout
= open("/dev/null", O_WRONLY
);
368 _stderr
= open("/dev/null", O_WRONLY
);
371 dup2(_stdin
, STDIN_FILENO
);
375 dup2(_stdout
, STDOUT_FILENO
);
379 dup2(_stderr
, STDERR_FILENO
);
383 if (!in
->has_jail
&& in
->user
&& in
->pw_gid
&& initgroups(in
->user
, in
->pw_gid
)) {
384 ERROR("failed to initgroups() for user %s: %m\n", in
->user
);
387 if (!in
->has_jail
&& in
->gr_gid
&& setgid(in
->gr_gid
)) {
388 ERROR("failed to set group id %d: %m\n", in
->gr_gid
);
391 if (!in
->has_jail
&& in
->uid
&& setuid(in
->uid
)) {
392 ERROR("failed to set user id %d: %m\n", in
->uid
);
396 execvp(argv
[0], argv
);
401 instance_free_stdio(struct service_instance
*in
)
403 if (in
->_stdout
.fd
.fd
> -1) {
404 ustream_free(&in
->_stdout
.stream
);
405 close(in
->_stdout
.fd
.fd
);
406 in
->_stdout
.fd
.fd
= -1;
409 if (in
->_stderr
.fd
.fd
> -1) {
410 ustream_free(&in
->_stderr
.stream
);
411 close(in
->_stderr
.fd
.fd
);
412 in
->_stderr
.fd
.fd
= -1;
417 instance_start(struct service_instance
*in
)
420 int opipe
[2] = { -1, -1 };
421 int epipe
[2] = { -1, -1 };
423 if (!avl_is_empty(&in
->errors
.avl
)) {
424 LOG("Not starting instance %s::%s, an error was indicated\n", in
->srv
->name
, in
->name
);
429 LOG("Not starting instance %s::%s, command not set\n", in
->srv
->name
, in
->name
);
433 if (in
->proc
.pending
) {
439 instance_free_stdio(in
);
440 if (in
->_stdout
.fd
.fd
> -2) {
442 ULOG_WARN("pipe() failed: %m\n");
443 opipe
[0] = opipe
[1] = -1;
447 if (in
->_stderr
.fd
.fd
> -2) {
449 ULOG_WARN("pipe() failed: %m\n");
450 epipe
[0] = epipe
[1] = -1;
468 instance_run(in
, opipe
[1], epipe
[1]);
472 DEBUG(2, "Started instance %s::%s[%d]\n", in
->srv
->name
, in
->name
, pid
);
474 instance_writepid(in
);
475 clock_gettime(CLOCK_MONOTONIC
, &in
->start
);
476 uloop_process_add(&in
->proc
);
479 ustream_fd_init(&in
->_stdout
, opipe
[0]);
481 fcntl(opipe
[0], F_SETFD
, FD_CLOEXEC
);
485 ustream_fd_init(&in
->_stderr
, epipe
[0]);
487 fcntl(epipe
[0], F_SETFD
, FD_CLOEXEC
);
490 service_event("instance.start", in
->srv
->name
, in
->name
);
494 instance_stdio(struct ustream
*s
, int prio
, struct service_instance
*in
)
496 char *newline
, *str
, *arg0
, ident
[32];
499 arg0
= basename(blobmsg_data(blobmsg_data(in
->command
)));
500 snprintf(ident
, sizeof(ident
), "%s[%d]", arg0
, in
->proc
.pid
);
501 ulog_open(ULOG_SYSLOG
, in
->syslog_facility
, ident
);
504 str
= ustream_get_read_buf(s
, &len
);
508 newline
= memchr(str
, '\n', len
);
509 if (!newline
&& (s
->r
.buffer_len
!= len
))
514 len
= newline
+ 1 - str
;
516 ulog(prio
, "%s\n", str
);
518 ustream_consume(s
, len
);
521 ulog_open(ULOG_SYSLOG
, LOG_DAEMON
, "procd");
525 instance_stdout(struct ustream
*s
, int bytes
)
527 instance_stdio(s
, LOG_INFO
,
528 container_of(s
, struct service_instance
, _stdout
.stream
));
532 instance_stderr(struct ustream
*s
, int bytes
)
534 instance_stdio(s
, LOG_ERR
,
535 container_of(s
, struct service_instance
, _stderr
.stream
));
539 instance_timeout(struct uloop_timeout
*t
)
541 struct service_instance
*in
;
543 in
= container_of(t
, struct service_instance
, timeout
);
546 LOG("Instance %s::%s pid %d not stopped on SIGTERM, sending SIGKILL instead\n",
547 in
->srv
->name
, in
->name
, in
->proc
.pid
);
548 kill(in
->proc
.pid
, SIGKILL
);
549 } else if (in
->restart
|| in
->respawn
)
554 instance_delete(struct service_instance
*in
)
556 struct service
*s
= in
->srv
;
558 avl_delete(&s
->instances
.avl
, &in
->node
.avl
);
564 instance_exit(struct uloop_process
*p
, int ret
)
566 struct service_instance
*in
;
570 in
= container_of(p
, struct service_instance
, proc
);
572 clock_gettime(CLOCK_MONOTONIC
, &tp
);
573 runtime
= tp
.tv_sec
- in
->start
.tv_sec
;
575 DEBUG(2, "Instance %s::%s exit with error code %d after %ld seconds\n", in
->srv
->name
, in
->name
, ret
, runtime
);
577 uloop_timeout_cancel(&in
->timeout
);
578 service_event("instance.stop", in
->srv
->name
, in
->name
);
581 instance_removepid(in
);
586 } else if (in
->restart
) {
588 } else if (in
->respawn
) {
589 if (runtime
< in
->respawn_threshold
)
592 in
->respawn_count
= 0;
593 if (in
->respawn_count
> in
->respawn_retry
&& in
->respawn_retry
> 0 ) {
594 LOG("Instance %s::%s s in a crash loop %d crashes, %ld seconds since last crash\n",
595 in
->srv
->name
, in
->name
, in
->respawn_count
, runtime
);
596 in
->restart
= in
->respawn
= 0;
598 service_event("instance.fail", in
->srv
->name
, in
->name
);
600 service_event("instance.respawn", in
->srv
->name
, in
->name
);
601 uloop_timeout_set(&in
->timeout
, in
->respawn_timeout
* 1000);
607 instance_stop(struct service_instance
*in
, bool halt
)
609 if (!in
->proc
.pending
) {
615 in
->restart
= in
->respawn
= false;
616 kill(in
->proc
.pid
, SIGTERM
);
617 uloop_timeout_set(&in
->timeout
, in
->term_timeout
* 1000);
621 instance_restart(struct service_instance
*in
)
623 if (!in
->proc
.pending
)
626 if (in
->reload_signal
) {
627 kill(in
->proc
.pid
, in
->reload_signal
);
633 kill(in
->proc
.pid
, SIGTERM
);
634 uloop_timeout_set(&in
->timeout
, in
->term_timeout
* 1000);
637 static bool string_changed(const char *a
, const char *b
)
639 return !((!a
&& !b
) || (a
&& b
&& !strcmp(a
, b
)));
643 instance_config_changed(struct service_instance
*in
, struct service_instance
*in_new
)
648 if (!blob_attr_equal(in
->command
, in_new
->command
))
651 if (!blobmsg_list_equal(&in
->env
, &in_new
->env
))
654 if (!blobmsg_list_equal(&in
->netdev
, &in_new
->netdev
))
657 if (!blobmsg_list_equal(&in
->file
, &in_new
->file
))
660 if (in
->nice
!= in_new
->nice
)
663 if (in
->syslog_facility
!= in_new
->syslog_facility
)
666 if (string_changed(in
->user
, in_new
->user
))
669 if (string_changed(in
->group
, in_new
->group
))
672 if (in
->uid
!= in_new
->uid
)
675 if (in
->pw_gid
!= in_new
->pw_gid
)
678 if (string_changed(in
->pidfile
, in_new
->pidfile
))
681 if (in
->respawn_retry
!= in_new
->respawn_retry
)
683 if (in
->respawn_threshold
!= in_new
->respawn_threshold
)
685 if (in
->respawn_timeout
!= in_new
->respawn_timeout
)
688 if ((!in
->seccomp
&& in_new
->seccomp
) ||
689 (in
->seccomp
&& !in_new
->seccomp
) ||
690 (in
->seccomp
&& in_new
->seccomp
&& strcmp(in
->seccomp
, in_new
->seccomp
)))
693 if (!blobmsg_list_equal(&in
->limits
, &in_new
->limits
))
696 if (!blobmsg_list_equal(&in
->jail
.mount
, &in_new
->jail
.mount
))
699 if (!blobmsg_list_equal(&in
->errors
, &in_new
->errors
))
706 instance_netdev_cmp(struct blobmsg_list_node
*l1
, struct blobmsg_list_node
*l2
)
708 struct instance_netdev
*n1
= container_of(l1
, struct instance_netdev
, node
);
709 struct instance_netdev
*n2
= container_of(l2
, struct instance_netdev
, node
);
711 return n1
->ifindex
== n2
->ifindex
;
715 instance_netdev_update(struct blobmsg_list_node
*l
)
717 struct instance_netdev
*n
= container_of(l
, struct instance_netdev
, node
);
719 n
->ifindex
= if_nametoindex(n
->node
.avl
.key
);
723 instance_file_cmp(struct blobmsg_list_node
*l1
, struct blobmsg_list_node
*l2
)
725 struct instance_file
*f1
= container_of(l1
, struct instance_file
, node
);
726 struct instance_file
*f2
= container_of(l2
, struct instance_file
, node
);
728 return !memcmp(f1
->md5
, f2
->md5
, sizeof(f1
->md5
));
732 instance_file_update(struct blobmsg_list_node
*l
)
734 struct instance_file
*f
= container_of(l
, struct instance_file
, node
);
739 memset(f
->md5
, 0, sizeof(f
->md5
));
741 fd
= open(l
->avl
.key
, O_RDONLY
);
747 len
= read(fd
, buf
, sizeof(buf
));
757 md5_hash(buf
, len
, &md5
);
760 md5_end(f
->md5
, &md5
);
765 instance_fill_any(struct blobmsg_list
*l
, struct blob_attr
*cur
)
770 blobmsg_list_fill(l
, blobmsg_data(cur
), blobmsg_data_len(cur
), false);
774 instance_fill_array(struct blobmsg_list
*l
, struct blob_attr
*cur
, blobmsg_update_cb cb
, bool array
)
776 struct blobmsg_list_node
*node
;
781 if (!blobmsg_check_attr_list(cur
, BLOBMSG_TYPE_STRING
))
784 blobmsg_list_fill(l
, blobmsg_data(cur
), blobmsg_data_len(cur
), array
);
786 blobmsg_list_for_each(l
, node
)
793 instance_jail_parse(struct service_instance
*in
, struct blob_attr
*attr
)
795 struct blob_attr
*tb
[__JAIL_ATTR_MAX
];
796 struct jail
*jail
= &in
->jail
;
799 if (stat("/sbin/ujail", &s
))
802 blobmsg_parse(jail_attr
, __JAIL_ATTR_MAX
, tb
,
803 blobmsg_data(attr
), blobmsg_data_len(attr
));
807 if (tb
[JAIL_ATTR_NAME
]) {
808 jail
->name
= strdup(blobmsg_get_string(tb
[JAIL_ATTR_NAME
]));
811 if (tb
[JAIL_ATTR_HOSTNAME
]) {
812 jail
->hostname
= strdup(blobmsg_get_string(tb
[JAIL_ATTR_HOSTNAME
]));
815 if (tb
[JAIL_ATTR_PROCFS
]) {
816 jail
->procfs
= blobmsg_get_bool(tb
[JAIL_ATTR_PROCFS
]);
819 if (tb
[JAIL_ATTR_SYSFS
]) {
820 jail
->sysfs
= blobmsg_get_bool(tb
[JAIL_ATTR_SYSFS
]);
823 if (tb
[JAIL_ATTR_UBUS
]) {
824 jail
->ubus
= blobmsg_get_bool(tb
[JAIL_ATTR_UBUS
]);
827 if (tb
[JAIL_ATTR_LOG
]) {
828 jail
->log
= blobmsg_get_bool(tb
[JAIL_ATTR_LOG
]);
831 if (tb
[JAIL_ATTR_RONLY
]) {
832 jail
->ronly
= blobmsg_get_bool(tb
[JAIL_ATTR_RONLY
]);
835 if (tb
[JAIL_ATTR_MOUNT
]) {
836 struct blob_attr
*cur
;
839 blobmsg_for_each_attr(cur
, tb
[JAIL_ATTR_MOUNT
], rem
)
841 instance_fill_array(&jail
->mount
, tb
[JAIL_ATTR_MOUNT
], NULL
, false);
852 if (in
->no_new_privs
)
859 instance_config_parse_command(struct service_instance
*in
, struct blob_attr
**tb
)
861 struct blob_attr
*cur
, *cur2
;
865 cur
= tb
[INSTANCE_ATTR_COMMAND
];
871 if (!blobmsg_check_attr_list(cur
, BLOBMSG_TYPE_STRING
))
874 blobmsg_for_each_attr(cur2
, cur
, rem
) {
884 instance_config_parse(struct service_instance
*in
)
886 struct blob_attr
*tb
[__INSTANCE_ATTR_MAX
];
887 struct blob_attr
*cur
, *cur2
;
890 blobmsg_parse(instance_attr
, __INSTANCE_ATTR_MAX
, tb
,
891 blobmsg_data(in
->config
), blobmsg_data_len(in
->config
));
893 if (!instance_config_parse_command(in
, tb
))
896 if (tb
[INSTANCE_ATTR_TERMTIMEOUT
])
897 in
->term_timeout
= blobmsg_get_u32(tb
[INSTANCE_ATTR_TERMTIMEOUT
]);
898 if (tb
[INSTANCE_ATTR_RESPAWN
]) {
900 uint32_t vals
[3] = { 3600, 5, 5};
902 blobmsg_for_each_attr(cur2
, tb
[INSTANCE_ATTR_RESPAWN
], rem
) {
903 if ((i
>= 3) && (blobmsg_type(cur2
) == BLOBMSG_TYPE_STRING
))
905 vals
[i
] = atoi(blobmsg_get_string(cur2
));
909 in
->respawn_count
= 0;
910 in
->respawn_threshold
= vals
[0];
911 in
->respawn_timeout
= vals
[1];
912 in
->respawn_retry
= vals
[2];
914 if (tb
[INSTANCE_ATTR_TRIGGER
]) {
915 in
->trigger
= tb
[INSTANCE_ATTR_TRIGGER
];
916 trigger_add(in
->trigger
, in
);
919 if (tb
[INSTANCE_ATTR_WATCH
]) {
920 blobmsg_for_each_attr(cur2
, tb
[INSTANCE_ATTR_WATCH
], rem
) {
921 if (blobmsg_type(cur2
) != BLOBMSG_TYPE_STRING
)
923 DEBUG(3, "watch for %s\n", blobmsg_get_string(cur2
));
924 watch_add(blobmsg_get_string(cur2
), in
);
928 if ((cur
= tb
[INSTANCE_ATTR_NICE
])) {
929 in
->nice
= (int8_t) blobmsg_get_u32(cur
);
930 if (in
->nice
< -20 || in
->nice
> 20)
934 if (tb
[INSTANCE_ATTR_USER
]) {
935 const char *user
= blobmsg_get_string(tb
[INSTANCE_ATTR_USER
]);
936 struct passwd
*p
= getpwnam(user
);
938 in
->user
= strdup(user
);
940 in
->gr_gid
= in
->pw_gid
= p
->pw_gid
;
944 if (tb
[INSTANCE_ATTR_GROUP
]) {
945 const char *group
= blobmsg_get_string(tb
[INSTANCE_ATTR_GROUP
]);
946 struct group
*p
= getgrnam(group
);
948 in
->group
= strdup(group
);
949 in
->gr_gid
= p
->gr_gid
;
953 if (tb
[INSTANCE_ATTR_TRACE
])
954 in
->trace
= blobmsg_get_bool(tb
[INSTANCE_ATTR_TRACE
]);
956 if (tb
[INSTANCE_ATTR_NO_NEW_PRIVS
])
957 in
->no_new_privs
= blobmsg_get_bool(tb
[INSTANCE_ATTR_NO_NEW_PRIVS
]);
959 if (!in
->trace
&& tb
[INSTANCE_ATTR_SECCOMP
])
960 in
->seccomp
= strdup(blobmsg_get_string(tb
[INSTANCE_ATTR_SECCOMP
]));
962 if (tb
[INSTANCE_ATTR_PIDFILE
]) {
963 char *pidfile
= blobmsg_get_string(tb
[INSTANCE_ATTR_PIDFILE
]);
965 in
->pidfile
= strdup(pidfile
);
968 if (tb
[INSTANCE_ATTR_RELOADSIG
])
969 in
->reload_signal
= blobmsg_get_u32(tb
[INSTANCE_ATTR_RELOADSIG
]);
971 if (!in
->trace
&& tb
[INSTANCE_ATTR_JAIL
])
972 in
->has_jail
= instance_jail_parse(in
, tb
[INSTANCE_ATTR_JAIL
]);
974 if (tb
[INSTANCE_ATTR_STDOUT
] && blobmsg_get_bool(tb
[INSTANCE_ATTR_STDOUT
]))
975 in
->_stdout
.fd
.fd
= -1;
977 if (tb
[INSTANCE_ATTR_STDERR
] && blobmsg_get_bool(tb
[INSTANCE_ATTR_STDERR
]))
978 in
->_stderr
.fd
.fd
= -1;
980 instance_fill_any(&in
->data
, tb
[INSTANCE_ATTR_DATA
]);
982 if (!instance_fill_array(&in
->env
, tb
[INSTANCE_ATTR_ENV
], NULL
, false))
985 if (!instance_fill_array(&in
->netdev
, tb
[INSTANCE_ATTR_NETDEV
], instance_netdev_update
, true))
988 if (!instance_fill_array(&in
->file
, tb
[INSTANCE_ATTR_FILE
], instance_file_update
, true))
991 if (!instance_fill_array(&in
->limits
, tb
[INSTANCE_ATTR_LIMITS
], NULL
, false))
994 if (!instance_fill_array(&in
->errors
, tb
[INSTANCE_ATTR_ERROR
], NULL
, true))
997 if (tb
[INSTANCE_ATTR_FACILITY
]) {
998 int facility
= syslog_facility_str_to_int(blobmsg_get_string(tb
[INSTANCE_ATTR_FACILITY
]));
999 if (facility
!= -1) {
1000 in
->syslog_facility
= facility
;
1001 DEBUG(3, "setting facility '%s'\n", blobmsg_get_string(tb
[INSTANCE_ATTR_FACILITY
]));
1003 DEBUG(3, "unknown syslog facility '%s' given, using default (LOG_DAEMON)\n", blobmsg_get_string(tb
[INSTANCE_ATTR_FACILITY
]));
1010 instance_config_cleanup(struct service_instance
*in
)
1012 blobmsg_list_free(&in
->env
);
1013 blobmsg_list_free(&in
->data
);
1014 blobmsg_list_free(&in
->netdev
);
1015 blobmsg_list_free(&in
->file
);
1016 blobmsg_list_free(&in
->limits
);
1017 blobmsg_list_free(&in
->errors
);
1018 blobmsg_list_free(&in
->jail
.mount
);
1022 instance_config_move_strdup(char **dst
, char *src
)
1037 instance_config_move(struct service_instance
*in
, struct service_instance
*in_src
)
1039 instance_config_cleanup(in
);
1040 blobmsg_list_move(&in
->env
, &in_src
->env
);
1041 blobmsg_list_move(&in
->data
, &in_src
->data
);
1042 blobmsg_list_move(&in
->netdev
, &in_src
->netdev
);
1043 blobmsg_list_move(&in
->file
, &in_src
->file
);
1044 blobmsg_list_move(&in
->limits
, &in_src
->limits
);
1045 blobmsg_list_move(&in
->errors
, &in_src
->errors
);
1046 blobmsg_list_move(&in
->jail
.mount
, &in_src
->jail
.mount
);
1047 in
->trigger
= in_src
->trigger
;
1048 in
->command
= in_src
->command
;
1049 in
->respawn
= in_src
->respawn
;
1050 in
->respawn_retry
= in_src
->respawn_retry
;
1051 in
->respawn_threshold
= in_src
->respawn_threshold
;
1052 in
->respawn_timeout
= in_src
->respawn_timeout
;
1053 in
->name
= in_src
->name
;
1054 in
->trace
= in_src
->trace
;
1055 in
->node
.avl
.key
= in_src
->node
.avl
.key
;
1056 in
->syslog_facility
= in_src
->syslog_facility
;
1058 instance_config_move_strdup(&in
->pidfile
, in_src
->pidfile
);
1059 instance_config_move_strdup(&in
->seccomp
, in_src
->seccomp
);
1060 instance_config_move_strdup(&in
->jail
.name
, in_src
->jail
.name
);
1061 instance_config_move_strdup(&in
->jail
.hostname
, in_src
->jail
.hostname
);
1064 in
->config
= in_src
->config
;
1065 in_src
->config
= NULL
;
1069 instance_update(struct service_instance
*in
, struct service_instance
*in_new
)
1071 bool changed
= instance_config_changed(in
, in_new
);
1072 bool running
= in
->proc
.pending
;
1073 bool stopping
= in
->halt
;
1075 if (!running
|| stopping
) {
1076 instance_config_move(in
, in_new
);
1080 instance_restart(in
);
1081 instance_config_move(in
, in_new
);
1082 /* restart happens in the child callback handler */
1087 instance_free(struct service_instance
*in
)
1089 instance_free_stdio(in
);
1090 uloop_process_delete(&in
->proc
);
1091 uloop_timeout_cancel(&in
->timeout
);
1094 instance_config_cleanup(in
);
1098 free(in
->jail
.name
);
1099 free(in
->jail
.hostname
);
1106 instance_init(struct service_instance
*in
, struct service
*s
, struct blob_attr
*config
)
1108 config
= blob_memdup(config
);
1110 in
->name
= blobmsg_name(config
);
1111 in
->config
= config
;
1112 in
->timeout
.cb
= instance_timeout
;
1113 in
->proc
.cb
= instance_exit
;
1114 in
->term_timeout
= 5;
1115 in
->syslog_facility
= LOG_DAEMON
;
1117 in
->_stdout
.fd
.fd
= -2;
1118 in
->_stdout
.stream
.string_data
= true;
1119 in
->_stdout
.stream
.notify_read
= instance_stdout
;
1121 in
->_stderr
.fd
.fd
= -2;
1122 in
->_stderr
.stream
.string_data
= true;
1123 in
->_stderr
.stream
.notify_read
= instance_stderr
;
1125 blobmsg_list_init(&in
->netdev
, struct instance_netdev
, node
, instance_netdev_cmp
);
1126 blobmsg_list_init(&in
->file
, struct instance_file
, node
, instance_file_cmp
);
1127 blobmsg_list_simple_init(&in
->env
);
1128 blobmsg_list_simple_init(&in
->data
);
1129 blobmsg_list_simple_init(&in
->limits
);
1130 blobmsg_list_simple_init(&in
->errors
);
1131 blobmsg_list_simple_init(&in
->jail
.mount
);
1132 in
->valid
= instance_config_parse(in
);
1135 void instance_dump(struct blob_buf
*b
, struct service_instance
*in
, int verbose
)
1142 i
= blobmsg_open_table(b
, in
->name
);
1143 blobmsg_add_u8(b
, "running", in
->proc
.pending
);
1144 if (in
->proc
.pending
)
1145 blobmsg_add_u32(b
, "pid", in
->proc
.pid
);
1147 blobmsg_add_blob(b
, in
->command
);
1148 blobmsg_add_u32(b
, "term_timeout", in
->term_timeout
);
1150 if (!avl_is_empty(&in
->errors
.avl
)) {
1151 struct blobmsg_list_node
*var
;
1152 void *e
= blobmsg_open_array(b
, "errors");
1153 blobmsg_list_for_each(&in
->errors
, var
)
1154 blobmsg_add_string(b
, NULL
, blobmsg_data(var
->data
));
1155 blobmsg_close_table(b
, e
);
1158 if (!avl_is_empty(&in
->env
.avl
)) {
1159 struct blobmsg_list_node
*var
;
1160 void *e
= blobmsg_open_table(b
, "env");
1161 blobmsg_list_for_each(&in
->env
, var
)
1162 blobmsg_add_string(b
, blobmsg_name(var
->data
), blobmsg_data(var
->data
));
1163 blobmsg_close_table(b
, e
);
1166 if (!avl_is_empty(&in
->data
.avl
)) {
1167 struct blobmsg_list_node
*var
;
1168 void *e
= blobmsg_open_table(b
, "data");
1169 blobmsg_list_for_each(&in
->data
, var
)
1170 blobmsg_add_blob(b
, var
->data
);
1171 blobmsg_close_table(b
, e
);
1174 if (!avl_is_empty(&in
->limits
.avl
)) {
1175 struct blobmsg_list_node
*var
;
1176 void *e
= blobmsg_open_table(b
, "limits");
1177 blobmsg_list_for_each(&in
->limits
, var
)
1178 blobmsg_add_string(b
, blobmsg_name(var
->data
), blobmsg_data(var
->data
));
1179 blobmsg_close_table(b
, e
);
1182 if (in
->reload_signal
)
1183 blobmsg_add_u32(b
, "reload_signal", in
->reload_signal
);
1186 void *r
= blobmsg_open_table(b
, "respawn");
1187 blobmsg_add_u32(b
, "threshold", in
->respawn_threshold
);
1188 blobmsg_add_u32(b
, "timeout", in
->respawn_timeout
);
1189 blobmsg_add_u32(b
, "retry", in
->respawn_retry
);
1190 blobmsg_close_table(b
, r
);
1194 blobmsg_add_u8(b
, "trace", true);
1196 if (in
->no_new_privs
)
1197 blobmsg_add_u8(b
, "no_new_privs", true);
1200 blobmsg_add_string(b
, "seccomp", in
->seccomp
);
1203 blobmsg_add_string(b
, "pidfile", in
->pidfile
);
1206 blobmsg_add_string(b
, "user", in
->user
);
1209 blobmsg_add_string(b
, "group", in
->group
);
1212 void *r
= blobmsg_open_table(b
, "jail");
1214 blobmsg_add_string(b
, "name", in
->jail
.name
);
1215 if (in
->jail
.hostname
)
1216 blobmsg_add_string(b
, "hostname", in
->jail
.hostname
);
1217 blobmsg_add_u8(b
, "procfs", in
->jail
.procfs
);
1218 blobmsg_add_u8(b
, "sysfs", in
->jail
.sysfs
);
1219 blobmsg_add_u8(b
, "ubus", in
->jail
.ubus
);
1220 blobmsg_add_u8(b
, "log", in
->jail
.log
);
1221 blobmsg_add_u8(b
, "ronly", in
->jail
.ronly
);
1222 blobmsg_close_table(b
, r
);
1223 if (!avl_is_empty(&in
->jail
.mount
.avl
)) {
1224 struct blobmsg_list_node
*var
;
1225 void *e
= blobmsg_open_table(b
, "mount");
1226 blobmsg_list_for_each(&in
->jail
.mount
, var
)
1227 blobmsg_add_string(b
, blobmsg_name(var
->data
), blobmsg_data(var
->data
));
1228 blobmsg_close_table(b
, e
);
1232 if (verbose
&& in
->trigger
)
1233 blobmsg_add_blob(b
, in
->trigger
);
1235 blobmsg_close_table(b
, i
);