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: %d - %m\n",
252 instance_writepid(struct service_instance
*in
)
259 _pidfile
= fopen(in
->pidfile
, "w");
260 if (_pidfile
== NULL
) {
261 ERROR("failed to open pidfile for writing: %s: %d (%m)",
265 if (fprintf(_pidfile
, "%d\n", in
->proc
.pid
) < 0) {
266 ERROR("failed to write pidfile: %s: %d (%m)",
271 if (fclose(_pidfile
)) {
272 ERROR("failed to close pidfile: %s: %d (%m)",
281 instance_run(struct service_instance
*in
, int _stdout
, int _stderr
)
283 struct blobmsg_list_node
*var
;
284 struct blob_attr
*cur
;
287 int argc
= 1; /* NULL terminated */
289 bool seccomp
= !in
->trace
&& !in
->has_jail
&& in
->seccomp
;
290 bool setlbf
= _stdout
>= 0;
293 setpriority(PRIO_PROCESS
, 0, in
->nice
);
295 blobmsg_for_each_attr(cur
, in
->command
, rem
)
298 blobmsg_list_for_each(&in
->env
, var
)
299 setenv(blobmsg_name(var
->data
), blobmsg_data(var
->data
), 1);
302 setenv("SECCOMP_FILE", in
->seccomp
, 1);
304 if (setlbf
&& asprintf(&ld_preload
, "LD_PRELOAD=/lib/libsetlbf.so") > 0)
307 blobmsg_list_for_each(&in
->limits
, var
)
308 instance_limits(blobmsg_name(var
->data
), blobmsg_data(var
->data
));
310 if (in
->trace
|| seccomp
)
313 argv
= alloca(sizeof(char *) * (argc
+ in
->jail
.argc
));
316 #ifdef SECCOMP_SUPPORT
318 argv
[argc
++] = "/sbin/utrace";
320 argv
[argc
++] = "/sbin/seccomp-trace";
322 if (in
->trace
|| seccomp
)
323 ULOG_WARN("Seccomp support for %s::%s not available\n", in
->srv
->name
, in
->name
);
327 argc
= jail_run(in
, argv
);
329 blobmsg_for_each_attr(cur
, in
->command
, rem
)
330 argv
[argc
++] = blobmsg_data(cur
);
334 _stdin
= open("/dev/null", O_RDONLY
);
337 _stdout
= open("/dev/null", O_WRONLY
);
340 _stderr
= open("/dev/null", O_WRONLY
);
343 dup2(_stdin
, STDIN_FILENO
);
347 dup2(_stdout
, STDOUT_FILENO
);
351 dup2(_stderr
, STDERR_FILENO
);
355 if (in
->gid
&& setgid(in
->gid
)) {
356 ERROR("failed to set group id %d: %d (%m)\n", in
->gid
, errno
);
359 if (in
->uid
&& setuid(in
->uid
)) {
360 ERROR("failed to set user id %d: %d (%m)\n", in
->uid
, errno
);
364 execvp(argv
[0], argv
);
369 instance_free_stdio(struct service_instance
*in
)
371 if (in
->_stdout
.fd
.fd
> -1) {
372 ustream_free(&in
->_stdout
.stream
);
373 close(in
->_stdout
.fd
.fd
);
374 in
->_stdout
.fd
.fd
= -1;
377 if (in
->_stderr
.fd
.fd
> -1) {
378 ustream_free(&in
->_stderr
.stream
);
379 close(in
->_stderr
.fd
.fd
);
380 in
->_stderr
.fd
.fd
= -1;
385 instance_start(struct service_instance
*in
)
388 int opipe
[2] = { -1, -1 };
389 int epipe
[2] = { -1, -1 };
391 if (!avl_is_empty(&in
->errors
.avl
)) {
392 LOG("Not starting instance %s::%s, an error was indicated\n", in
->srv
->name
, in
->name
);
397 LOG("Not starting instance %s::%s, command not set\n", in
->srv
->name
, in
->name
);
401 if (in
->proc
.pending
) {
407 instance_free_stdio(in
);
408 if (in
->_stdout
.fd
.fd
> -2) {
410 ULOG_WARN("pipe() failed: %d (%m)\n", errno
);
411 opipe
[0] = opipe
[1] = -1;
415 if (in
->_stderr
.fd
.fd
> -2) {
417 ULOG_WARN("pipe() failed: %d (%m)\n", errno
);
418 epipe
[0] = epipe
[1] = -1;
436 instance_run(in
, opipe
[1], epipe
[1]);
440 DEBUG(2, "Started instance %s::%s[%d]\n", in
->srv
->name
, in
->name
, pid
);
442 instance_writepid(in
);
443 clock_gettime(CLOCK_MONOTONIC
, &in
->start
);
444 uloop_process_add(&in
->proc
);
447 ustream_fd_init(&in
->_stdout
, opipe
[0]);
449 fcntl(opipe
[0], F_SETFD
, FD_CLOEXEC
);
453 ustream_fd_init(&in
->_stderr
, epipe
[0]);
455 fcntl(epipe
[0], F_SETFD
, FD_CLOEXEC
);
458 service_event("instance.start", in
->srv
->name
, in
->name
);
462 instance_stdio(struct ustream
*s
, int prio
, struct service_instance
*in
)
464 char *newline
, *str
, *arg0
, ident
[32];
467 arg0
= basename(blobmsg_data(blobmsg_data(in
->command
)));
468 snprintf(ident
, sizeof(ident
), "%s[%d]", arg0
, in
->proc
.pid
);
469 ulog_open(ULOG_SYSLOG
, LOG_DAEMON
, ident
);
472 str
= ustream_get_read_buf(s
, NULL
);
476 newline
= strchr(str
, '\n');
481 ulog(prio
, "%s\n", str
);
483 len
= newline
+ 1 - str
;
484 ustream_consume(s
, len
);
487 ulog_open(ULOG_SYSLOG
, LOG_DAEMON
, "procd");
491 instance_stdout(struct ustream
*s
, int bytes
)
493 instance_stdio(s
, LOG_INFO
,
494 container_of(s
, struct service_instance
, _stdout
.stream
));
498 instance_stderr(struct ustream
*s
, int bytes
)
500 instance_stdio(s
, LOG_ERR
,
501 container_of(s
, struct service_instance
, _stderr
.stream
));
505 instance_timeout(struct uloop_timeout
*t
)
507 struct service_instance
*in
;
509 in
= container_of(t
, struct service_instance
, timeout
);
512 LOG("Instance %s::%s pid %d not stopped on SIGTERM, sending SIGKILL instead\n",
513 in
->srv
->name
, in
->name
, in
->proc
.pid
);
514 kill(in
->proc
.pid
, SIGKILL
);
515 } else if (in
->restart
|| in
->respawn
)
520 instance_exit(struct uloop_process
*p
, int ret
)
522 struct service_instance
*in
;
526 in
= container_of(p
, struct service_instance
, proc
);
528 clock_gettime(CLOCK_MONOTONIC
, &tp
);
529 runtime
= tp
.tv_sec
- in
->start
.tv_sec
;
531 DEBUG(2, "Instance %s::%s exit with error code %d after %ld seconds\n", in
->srv
->name
, in
->name
, ret
, runtime
);
533 uloop_timeout_cancel(&in
->timeout
);
534 service_event("instance.stop", in
->srv
->name
, in
->name
);
537 instance_removepid(in
);
541 struct service
*s
= in
->srv
;
543 avl_delete(&s
->instances
.avl
, &in
->node
.avl
);
547 } else if (in
->restart
) {
549 } else if (in
->respawn
) {
550 if (runtime
< in
->respawn_threshold
)
553 in
->respawn_count
= 0;
554 if (in
->respawn_count
> in
->respawn_retry
&& in
->respawn_retry
> 0 ) {
555 LOG("Instance %s::%s s in a crash loop %d crashes, %ld seconds since last crash\n",
556 in
->srv
->name
, in
->name
, in
->respawn_count
, runtime
);
557 in
->restart
= in
->respawn
= 0;
559 service_event("instance.fail", in
->srv
->name
, in
->name
);
561 service_event("instance.respawn", in
->srv
->name
, in
->name
);
562 uloop_timeout_set(&in
->timeout
, in
->respawn_timeout
* 1000);
568 instance_stop(struct service_instance
*in
, bool halt
)
570 if (!in
->proc
.pending
)
573 in
->restart
= in
->respawn
= false;
574 kill(in
->proc
.pid
, SIGTERM
);
575 uloop_timeout_set(&in
->timeout
, in
->term_timeout
* 1000);
579 instance_restart(struct service_instance
*in
)
581 if (!in
->proc
.pending
)
584 if (in
->reload_signal
) {
585 kill(in
->proc
.pid
, in
->reload_signal
);
591 kill(in
->proc
.pid
, SIGTERM
);
592 uloop_timeout_set(&in
->timeout
, in
->term_timeout
* 1000);
596 instance_config_changed(struct service_instance
*in
, struct service_instance
*in_new
)
601 if (!blob_attr_equal(in
->command
, in_new
->command
))
604 if (!blobmsg_list_equal(&in
->env
, &in_new
->env
))
607 if (!blobmsg_list_equal(&in
->netdev
, &in_new
->netdev
))
610 if (!blobmsg_list_equal(&in
->file
, &in_new
->file
))
613 if (in
->nice
!= in_new
->nice
)
616 if (in
->uid
!= in_new
->uid
)
619 if (in
->gid
!= in_new
->gid
)
622 if (in
->pidfile
&& in_new
->pidfile
)
623 if (strcmp(in
->pidfile
, in_new
->pidfile
))
626 if (in
->pidfile
&& !in_new
->pidfile
)
629 if (!in
->pidfile
&& in_new
->pidfile
)
632 if (in
->respawn_retry
!= in_new
->respawn_retry
)
634 if (in
->respawn_threshold
!= in_new
->respawn_threshold
)
636 if (in
->respawn_timeout
!= in_new
->respawn_timeout
)
639 if (!blobmsg_list_equal(&in
->limits
, &in_new
->limits
))
642 if (!blobmsg_list_equal(&in
->jail
.mount
, &in_new
->jail
.mount
))
645 if (!blobmsg_list_equal(&in
->errors
, &in_new
->errors
))
652 instance_netdev_cmp(struct blobmsg_list_node
*l1
, struct blobmsg_list_node
*l2
)
654 struct instance_netdev
*n1
= container_of(l1
, struct instance_netdev
, node
);
655 struct instance_netdev
*n2
= container_of(l2
, struct instance_netdev
, node
);
657 return n1
->ifindex
== n2
->ifindex
;
661 instance_netdev_update(struct blobmsg_list_node
*l
)
663 struct instance_netdev
*n
= container_of(l
, struct instance_netdev
, node
);
665 n
->ifindex
= if_nametoindex(n
->node
.avl
.key
);
669 instance_file_cmp(struct blobmsg_list_node
*l1
, struct blobmsg_list_node
*l2
)
671 struct instance_file
*f1
= container_of(l1
, struct instance_file
, node
);
672 struct instance_file
*f2
= container_of(l2
, struct instance_file
, node
);
674 return !memcmp(f1
->md5
, f2
->md5
, sizeof(f1
->md5
));
678 instance_file_update(struct blobmsg_list_node
*l
)
680 struct instance_file
*f
= container_of(l
, struct instance_file
, node
);
685 memset(f
->md5
, 0, sizeof(f
->md5
));
687 fd
= open(l
->avl
.key
, O_RDONLY
);
693 len
= read(fd
, buf
, sizeof(buf
));
703 md5_hash(buf
, len
, &md5
);
706 md5_end(f
->md5
, &md5
);
711 instance_fill_any(struct blobmsg_list
*l
, struct blob_attr
*cur
)
716 blobmsg_list_fill(l
, blobmsg_data(cur
), blobmsg_data_len(cur
), false);
720 instance_fill_array(struct blobmsg_list
*l
, struct blob_attr
*cur
, blobmsg_update_cb cb
, bool array
)
722 struct blobmsg_list_node
*node
;
727 if (!blobmsg_check_attr_list(cur
, BLOBMSG_TYPE_STRING
))
730 blobmsg_list_fill(l
, blobmsg_data(cur
), blobmsg_data_len(cur
), array
);
732 blobmsg_list_for_each(l
, node
)
739 instance_jail_parse(struct service_instance
*in
, struct blob_attr
*attr
)
741 struct blob_attr
*tb
[__JAIL_ATTR_MAX
];
742 struct jail
*jail
= &in
->jail
;
745 if (stat("/sbin/ujail", &s
))
748 blobmsg_parse(jail_attr
, __JAIL_ATTR_MAX
, tb
,
749 blobmsg_data(attr
), blobmsg_data_len(attr
));
753 if (tb
[JAIL_ATTR_NAME
]) {
754 jail
->name
= blobmsg_get_string(tb
[JAIL_ATTR_NAME
]);
757 if (tb
[JAIL_ATTR_HOSTNAME
]) {
758 jail
->hostname
= blobmsg_get_string(tb
[JAIL_ATTR_HOSTNAME
]);
761 if (tb
[JAIL_ATTR_PROCFS
]) {
762 jail
->procfs
= blobmsg_get_bool(tb
[JAIL_ATTR_PROCFS
]);
765 if (tb
[JAIL_ATTR_SYSFS
]) {
766 jail
->sysfs
= blobmsg_get_bool(tb
[JAIL_ATTR_SYSFS
]);
769 if (tb
[JAIL_ATTR_UBUS
]) {
770 jail
->ubus
= blobmsg_get_bool(tb
[JAIL_ATTR_UBUS
]);
773 if (tb
[JAIL_ATTR_LOG
]) {
774 jail
->log
= blobmsg_get_bool(tb
[JAIL_ATTR_LOG
]);
777 if (tb
[JAIL_ATTR_RONLY
]) {
778 jail
->ronly
= blobmsg_get_bool(tb
[JAIL_ATTR_RONLY
]);
781 if (tb
[JAIL_ATTR_MOUNT
]) {
782 struct blob_attr
*cur
;
785 blobmsg_for_each_attr(cur
, tb
[JAIL_ATTR_MOUNT
], rem
)
787 instance_fill_array(&jail
->mount
, tb
[JAIL_ATTR_MOUNT
], NULL
, false);
796 instance_config_parse_command(struct service_instance
*in
, struct blob_attr
**tb
)
798 struct blob_attr
*cur
, *cur2
;
802 cur
= tb
[INSTANCE_ATTR_COMMAND
];
808 if (!blobmsg_check_attr_list(cur
, BLOBMSG_TYPE_STRING
))
811 blobmsg_for_each_attr(cur2
, cur
, rem
) {
821 instance_config_parse(struct service_instance
*in
)
823 struct blob_attr
*tb
[__INSTANCE_ATTR_MAX
];
824 struct blob_attr
*cur
, *cur2
;
827 blobmsg_parse(instance_attr
, __INSTANCE_ATTR_MAX
, tb
,
828 blobmsg_data(in
->config
), blobmsg_data_len(in
->config
));
830 if (!instance_config_parse_command(in
, tb
))
833 if (tb
[INSTANCE_ATTR_TERMTIMEOUT
])
834 in
->term_timeout
= blobmsg_get_u32(tb
[INSTANCE_ATTR_TERMTIMEOUT
]);
835 if (tb
[INSTANCE_ATTR_RESPAWN
]) {
837 uint32_t vals
[3] = { 3600, 5, 5};
839 blobmsg_for_each_attr(cur2
, tb
[INSTANCE_ATTR_RESPAWN
], rem
) {
840 if ((i
>= 3) && (blobmsg_type(cur2
) == BLOBMSG_TYPE_STRING
))
842 vals
[i
] = atoi(blobmsg_get_string(cur2
));
846 in
->respawn_count
= 0;
847 in
->respawn_threshold
= vals
[0];
848 in
->respawn_timeout
= vals
[1];
849 in
->respawn_retry
= vals
[2];
851 if (tb
[INSTANCE_ATTR_TRIGGER
]) {
852 in
->trigger
= tb
[INSTANCE_ATTR_TRIGGER
];
853 trigger_add(in
->trigger
, in
);
856 if (tb
[INSTANCE_ATTR_WATCH
]) {
857 blobmsg_for_each_attr(cur2
, tb
[INSTANCE_ATTR_WATCH
], rem
) {
858 if (blobmsg_type(cur2
) != BLOBMSG_TYPE_STRING
)
860 DEBUG(3, "watch for %s\n", blobmsg_get_string(cur2
));
861 watch_add(blobmsg_get_string(cur2
), in
);
865 if ((cur
= tb
[INSTANCE_ATTR_NICE
])) {
866 in
->nice
= (int8_t) blobmsg_get_u32(cur
);
867 if (in
->nice
< -20 || in
->nice
> 20)
871 if (tb
[INSTANCE_ATTR_USER
]) {
872 struct passwd
*p
= getpwnam(blobmsg_get_string(tb
[INSTANCE_ATTR_USER
]));
879 if (tb
[INSTANCE_ATTR_TRACE
])
880 in
->trace
= blobmsg_get_bool(tb
[INSTANCE_ATTR_TRACE
]);
882 if (tb
[INSTANCE_ATTR_NO_NEW_PRIVS
])
883 in
->no_new_privs
= blobmsg_get_bool(tb
[INSTANCE_ATTR_NO_NEW_PRIVS
]);
885 if (!in
->trace
&& tb
[INSTANCE_ATTR_SECCOMP
])
886 in
->seccomp
= blobmsg_get_string(tb
[INSTANCE_ATTR_SECCOMP
]);
888 if (tb
[INSTANCE_ATTR_PIDFILE
]) {
889 char *pidfile
= blobmsg_get_string(tb
[INSTANCE_ATTR_PIDFILE
]);
891 in
->pidfile
= pidfile
;
894 if (tb
[INSTANCE_ATTR_RELOADSIG
])
895 in
->reload_signal
= blobmsg_get_u32(tb
[INSTANCE_ATTR_RELOADSIG
]);
897 if (!in
->trace
&& tb
[INSTANCE_ATTR_JAIL
])
898 in
->has_jail
= instance_jail_parse(in
, tb
[INSTANCE_ATTR_JAIL
]);
900 if (tb
[INSTANCE_ATTR_STDOUT
] && blobmsg_get_bool(tb
[INSTANCE_ATTR_STDOUT
]))
901 in
->_stdout
.fd
.fd
= -1;
903 if (tb
[INSTANCE_ATTR_STDERR
] && blobmsg_get_bool(tb
[INSTANCE_ATTR_STDERR
]))
904 in
->_stderr
.fd
.fd
= -1;
906 instance_fill_any(&in
->data
, tb
[INSTANCE_ATTR_DATA
]);
908 if (!instance_fill_array(&in
->env
, tb
[INSTANCE_ATTR_ENV
], NULL
, false))
911 if (!instance_fill_array(&in
->netdev
, tb
[INSTANCE_ATTR_NETDEV
], instance_netdev_update
, true))
914 if (!instance_fill_array(&in
->file
, tb
[INSTANCE_ATTR_FILE
], instance_file_update
, true))
917 if (!instance_fill_array(&in
->limits
, tb
[INSTANCE_ATTR_LIMITS
], NULL
, false))
920 if (!instance_fill_array(&in
->errors
, tb
[INSTANCE_ATTR_ERROR
], NULL
, true))
927 instance_config_cleanup(struct service_instance
*in
)
929 blobmsg_list_free(&in
->env
);
930 blobmsg_list_free(&in
->data
);
931 blobmsg_list_free(&in
->netdev
);
932 blobmsg_list_free(&in
->file
);
933 blobmsg_list_free(&in
->limits
);
934 blobmsg_list_free(&in
->errors
);
935 blobmsg_list_free(&in
->jail
.mount
);
939 instance_config_move(struct service_instance
*in
, struct service_instance
*in_src
)
941 instance_config_cleanup(in
);
942 blobmsg_list_move(&in
->env
, &in_src
->env
);
943 blobmsg_list_move(&in
->data
, &in_src
->data
);
944 blobmsg_list_move(&in
->netdev
, &in_src
->netdev
);
945 blobmsg_list_move(&in
->file
, &in_src
->file
);
946 blobmsg_list_move(&in
->limits
, &in_src
->limits
);
947 blobmsg_list_move(&in
->errors
, &in_src
->errors
);
948 blobmsg_list_move(&in
->jail
.mount
, &in_src
->jail
.mount
);
949 in
->trigger
= in_src
->trigger
;
950 in
->command
= in_src
->command
;
951 in
->pidfile
= in_src
->pidfile
;
952 in
->respawn_retry
= in_src
->respawn_retry
;
953 in
->respawn_threshold
= in_src
->respawn_threshold
;
954 in
->respawn_timeout
= in_src
->respawn_timeout
;
955 in
->name
= in_src
->name
;
956 in
->trace
= in_src
->trace
;
957 in
->node
.avl
.key
= in_src
->node
.avl
.key
;
960 in
->config
= in_src
->config
;
961 in_src
->config
= NULL
;
965 instance_update(struct service_instance
*in
, struct service_instance
*in_new
)
967 bool changed
= instance_config_changed(in
, in_new
);
968 bool running
= in
->proc
.pending
;
969 bool stopping
= in
->halt
;
971 if (!running
|| stopping
) {
972 instance_config_move(in
, in_new
);
976 instance_restart(in
);
977 instance_config_move(in
, in_new
);
978 /* restart happens in the child callback handler */
983 instance_free(struct service_instance
*in
)
985 instance_free_stdio(in
);
986 uloop_process_delete(&in
->proc
);
987 uloop_timeout_cancel(&in
->timeout
);
990 instance_config_cleanup(in
);
996 instance_init(struct service_instance
*in
, struct service
*s
, struct blob_attr
*config
)
998 config
= blob_memdup(config
);
1000 in
->name
= blobmsg_name(config
);
1001 in
->config
= config
;
1002 in
->timeout
.cb
= instance_timeout
;
1003 in
->proc
.cb
= instance_exit
;
1004 in
->term_timeout
= 5;
1006 in
->_stdout
.fd
.fd
= -2;
1007 in
->_stdout
.stream
.string_data
= true;
1008 in
->_stdout
.stream
.notify_read
= instance_stdout
;
1010 in
->_stderr
.fd
.fd
= -2;
1011 in
->_stderr
.stream
.string_data
= true;
1012 in
->_stderr
.stream
.notify_read
= instance_stderr
;
1014 blobmsg_list_init(&in
->netdev
, struct instance_netdev
, node
, instance_netdev_cmp
);
1015 blobmsg_list_init(&in
->file
, struct instance_file
, node
, instance_file_cmp
);
1016 blobmsg_list_simple_init(&in
->env
);
1017 blobmsg_list_simple_init(&in
->data
);
1018 blobmsg_list_simple_init(&in
->limits
);
1019 blobmsg_list_simple_init(&in
->errors
);
1020 blobmsg_list_simple_init(&in
->jail
.mount
);
1021 in
->valid
= instance_config_parse(in
);
1024 void instance_dump(struct blob_buf
*b
, struct service_instance
*in
, int verbose
)
1031 i
= blobmsg_open_table(b
, in
->name
);
1032 blobmsg_add_u8(b
, "running", in
->proc
.pending
);
1033 if (in
->proc
.pending
)
1034 blobmsg_add_u32(b
, "pid", in
->proc
.pid
);
1036 blobmsg_add_blob(b
, in
->command
);
1037 blobmsg_add_u32(b
, "term_timeout", in
->term_timeout
);
1039 if (!avl_is_empty(&in
->errors
.avl
)) {
1040 struct blobmsg_list_node
*var
;
1041 void *e
= blobmsg_open_array(b
, "errors");
1042 blobmsg_list_for_each(&in
->errors
, var
)
1043 blobmsg_add_string(b
, NULL
, blobmsg_data(var
->data
));
1044 blobmsg_close_table(b
, e
);
1047 if (!avl_is_empty(&in
->env
.avl
)) {
1048 struct blobmsg_list_node
*var
;
1049 void *e
= blobmsg_open_table(b
, "env");
1050 blobmsg_list_for_each(&in
->env
, var
)
1051 blobmsg_add_string(b
, blobmsg_name(var
->data
), blobmsg_data(var
->data
));
1052 blobmsg_close_table(b
, e
);
1055 if (!avl_is_empty(&in
->data
.avl
)) {
1056 struct blobmsg_list_node
*var
;
1057 void *e
= blobmsg_open_table(b
, "data");
1058 blobmsg_list_for_each(&in
->data
, var
)
1059 blobmsg_add_blob(b
, var
->data
);
1060 blobmsg_close_table(b
, e
);
1063 if (!avl_is_empty(&in
->limits
.avl
)) {
1064 struct blobmsg_list_node
*var
;
1065 void *e
= blobmsg_open_table(b
, "limits");
1066 blobmsg_list_for_each(&in
->limits
, var
)
1067 blobmsg_add_string(b
, blobmsg_name(var
->data
), blobmsg_data(var
->data
));
1068 blobmsg_close_table(b
, e
);
1071 if (in
->reload_signal
)
1072 blobmsg_add_u32(b
, "reload_signal", in
->reload_signal
);
1075 void *r
= blobmsg_open_table(b
, "respawn");
1076 blobmsg_add_u32(b
, "threshold", in
->respawn_threshold
);
1077 blobmsg_add_u32(b
, "timeout", in
->respawn_timeout
);
1078 blobmsg_add_u32(b
, "retry", in
->respawn_retry
);
1079 blobmsg_close_table(b
, r
);
1083 blobmsg_add_u8(b
, "trace", true);
1085 if (in
->no_new_privs
)
1086 blobmsg_add_u8(b
, "no_new_privs", true);
1089 blobmsg_add_string(b
, "seccomp", in
->seccomp
);
1092 blobmsg_add_string(b
, "pidfile", in
->pidfile
);
1095 void *r
= blobmsg_open_table(b
, "jail");
1097 blobmsg_add_string(b
, "name", in
->jail
.name
);
1098 if (in
->jail
.hostname
)
1099 blobmsg_add_string(b
, "hostname", in
->jail
.hostname
);
1100 blobmsg_add_u8(b
, "procfs", in
->jail
.procfs
);
1101 blobmsg_add_u8(b
, "sysfs", in
->jail
.sysfs
);
1102 blobmsg_add_u8(b
, "ubus", in
->jail
.ubus
);
1103 blobmsg_add_u8(b
, "log", in
->jail
.log
);
1104 blobmsg_add_u8(b
, "ronly", in
->jail
.ronly
);
1105 blobmsg_close_table(b
, r
);
1106 if (!avl_is_empty(&in
->jail
.mount
.avl
)) {
1107 struct blobmsg_list_node
*var
;
1108 void *e
= blobmsg_open_table(b
, "mount");
1109 blobmsg_list_for_each(&in
->jail
.mount
, var
)
1110 blobmsg_add_string(b
, blobmsg_name(var
->data
), blobmsg_data(var
->data
));
1111 blobmsg_close_table(b
, e
);
1115 if (verbose
&& in
->trigger
)
1116 blobmsg_add_blob(b
, in
->trigger
);
1118 blobmsg_close_table(b
, i
);