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
,
61 static const struct blobmsg_policy instance_attr
[__INSTANCE_ATTR_MAX
] = {
62 [INSTANCE_ATTR_COMMAND
] = { "command", BLOBMSG_TYPE_ARRAY
},
63 [INSTANCE_ATTR_ENV
] = { "env", BLOBMSG_TYPE_TABLE
},
64 [INSTANCE_ATTR_DATA
] = { "data", BLOBMSG_TYPE_TABLE
},
65 [INSTANCE_ATTR_NETDEV
] = { "netdev", BLOBMSG_TYPE_ARRAY
},
66 [INSTANCE_ATTR_FILE
] = { "file", BLOBMSG_TYPE_ARRAY
},
67 [INSTANCE_ATTR_TRIGGER
] = { "triggers", BLOBMSG_TYPE_ARRAY
},
68 [INSTANCE_ATTR_RESPAWN
] = { "respawn", BLOBMSG_TYPE_ARRAY
},
69 [INSTANCE_ATTR_NICE
] = { "nice", BLOBMSG_TYPE_INT32
},
70 [INSTANCE_ATTR_LIMITS
] = { "limits", BLOBMSG_TYPE_TABLE
},
71 [INSTANCE_ATTR_WATCH
] = { "watch", BLOBMSG_TYPE_ARRAY
},
72 [INSTANCE_ATTR_ERROR
] = { "error", BLOBMSG_TYPE_ARRAY
},
73 [INSTANCE_ATTR_USER
] = { "user", BLOBMSG_TYPE_STRING
},
74 [INSTANCE_ATTR_STDOUT
] = { "stdout", BLOBMSG_TYPE_BOOL
},
75 [INSTANCE_ATTR_STDERR
] = { "stderr", BLOBMSG_TYPE_BOOL
},
76 [INSTANCE_ATTR_NO_NEW_PRIVS
] = { "no_new_privs", BLOBMSG_TYPE_BOOL
},
77 [INSTANCE_ATTR_JAIL
] = { "jail", BLOBMSG_TYPE_TABLE
},
78 [INSTANCE_ATTR_TRACE
] = { "trace", BLOBMSG_TYPE_BOOL
},
79 [INSTANCE_ATTR_SECCOMP
] = { "seccomp", BLOBMSG_TYPE_STRING
},
80 [INSTANCE_ATTR_PIDFILE
] = { "pidfile", BLOBMSG_TYPE_STRING
},
81 [INSTANCE_ATTR_RELOADSIG
] = { "reload_signal", BLOBMSG_TYPE_INT32
},
96 static const struct blobmsg_policy jail_attr
[__JAIL_ATTR_MAX
] = {
97 [JAIL_ATTR_NAME
] = { "name", BLOBMSG_TYPE_STRING
},
98 [JAIL_ATTR_HOSTNAME
] = { "hostname", BLOBMSG_TYPE_STRING
},
99 [JAIL_ATTR_PROCFS
] = { "procfs", BLOBMSG_TYPE_BOOL
},
100 [JAIL_ATTR_SYSFS
] = { "sysfs", BLOBMSG_TYPE_BOOL
},
101 [JAIL_ATTR_UBUS
] = { "ubus", BLOBMSG_TYPE_BOOL
},
102 [JAIL_ATTR_LOG
] = { "log", BLOBMSG_TYPE_BOOL
},
103 [JAIL_ATTR_RONLY
] = { "ronly", BLOBMSG_TYPE_BOOL
},
104 [JAIL_ATTR_MOUNT
] = { "mount", BLOBMSG_TYPE_TABLE
},
107 struct instance_netdev
{
108 struct blobmsg_list_node node
;
112 struct instance_file
{
113 struct blobmsg_list_node node
;
122 static const struct rlimit_name rlimit_names
[] = {
124 { "core", RLIMIT_CORE
},
125 { "cpu", RLIMIT_CPU
},
126 { "data", RLIMIT_DATA
},
127 { "fsize", RLIMIT_FSIZE
},
128 { "memlock", RLIMIT_MEMLOCK
},
129 { "nofile", RLIMIT_NOFILE
},
130 { "nproc", RLIMIT_NPROC
},
131 { "rss", RLIMIT_RSS
},
132 { "stack", RLIMIT_STACK
},
134 { "nice", RLIMIT_NICE
},
135 { "rtprio", RLIMIT_RTPRIO
},
136 { "msgqueue", RLIMIT_MSGQUEUE
},
137 { "sigpending", RLIMIT_SIGPENDING
},
142 static char trace
[] = "/sbin/utrace";
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 - %s\n",
245 in
->pidfile
, errno
, strerror(errno
));
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 (%s)",
262 in
->pidfile
, errno
, strerror(errno
));
265 if (fprintf(_pidfile
, "%d\n", in
->proc
.pid
) < 0) {
266 ERROR("failed to write pidfile: %s: %d (%s)",
267 in
->pidfile
, errno
, strerror(errno
));
271 if (fclose(_pidfile
)) {
272 ERROR("failed to close pidfile: %s: %d (%s)",
273 in
->pidfile
, errno
, strerror(errno
));
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 ((seccomp
|| setlbf
) && asprintf(&ld_preload
, "LD_PRELOAD=%s%s%s",
305 seccomp
? "/lib/libpreload-seccomp.so" : "",
306 seccomp
&& setlbf
? ":" : "",
307 setlbf
? "/lib/libsetlbf.so" : "") > 0)
310 blobmsg_list_for_each(&in
->limits
, var
)
311 instance_limits(blobmsg_name(var
->data
), blobmsg_data(var
->data
));
316 argv
= alloca(sizeof(char *) * (argc
+ in
->jail
.argc
));
320 argv
[argc
++] = trace
;
323 argc
= jail_run(in
, argv
);
325 blobmsg_for_each_attr(cur
, in
->command
, rem
)
326 argv
[argc
++] = blobmsg_data(cur
);
330 _stdin
= open("/dev/null", O_RDONLY
);
333 _stdout
= open("/dev/null", O_WRONLY
);
336 _stderr
= open("/dev/null", O_WRONLY
);
339 dup2(_stdin
, STDIN_FILENO
);
343 dup2(_stdout
, STDOUT_FILENO
);
347 dup2(_stderr
, STDERR_FILENO
);
351 if (in
->gid
&& setgid(in
->gid
)) {
352 ERROR("failed to set group id %d: %d (%s)\n", in
->gid
, errno
, strerror(errno
));
355 if (in
->uid
&& setuid(in
->uid
)) {
356 ERROR("failed to set user id %d: %d (%s)\n", in
->uid
, errno
, strerror(errno
));
360 execvp(argv
[0], argv
);
365 instance_free_stdio(struct service_instance
*in
)
367 if (in
->_stdout
.fd
.fd
> -1) {
368 ustream_free(&in
->_stdout
.stream
);
369 close(in
->_stdout
.fd
.fd
);
370 in
->_stdout
.fd
.fd
= -1;
373 if (in
->_stderr
.fd
.fd
> -1) {
374 ustream_free(&in
->_stderr
.stream
);
375 close(in
->_stderr
.fd
.fd
);
376 in
->_stderr
.fd
.fd
= -1;
381 instance_start(struct service_instance
*in
)
384 int opipe
[2] = { -1, -1 };
385 int epipe
[2] = { -1, -1 };
387 if (!avl_is_empty(&in
->errors
.avl
)) {
388 LOG("Not starting instance %s::%s, an error was indicated\n", in
->srv
->name
, in
->name
);
392 if (in
->proc
.pending
|| !in
->command
)
395 instance_free_stdio(in
);
396 if (in
->_stdout
.fd
.fd
> -2) {
398 ULOG_WARN("pipe() failed: %d (%s)\n", errno
, strerror(errno
));
399 opipe
[0] = opipe
[1] = -1;
403 if (in
->_stderr
.fd
.fd
> -2) {
405 ULOG_WARN("pipe() failed: %d (%s)\n", errno
, strerror(errno
));
406 epipe
[0] = epipe
[1] = -1;
411 in
->halt
= !in
->respawn
;
424 instance_run(in
, opipe
[1], epipe
[1]);
428 DEBUG(2, "Started instance %s::%s[%d]\n", in
->srv
->name
, in
->name
, pid
);
430 instance_writepid(in
);
431 clock_gettime(CLOCK_MONOTONIC
, &in
->start
);
432 uloop_process_add(&in
->proc
);
435 ustream_fd_init(&in
->_stdout
, opipe
[0]);
440 ustream_fd_init(&in
->_stderr
, epipe
[0]);
444 service_event("instance.start", in
->srv
->name
, in
->name
);
448 instance_stdio(struct ustream
*s
, int prio
, struct service_instance
*in
)
450 char *newline
, *str
, *arg0
, ident
[32];
453 arg0
= basename(blobmsg_data(blobmsg_data(in
->command
)));
454 snprintf(ident
, sizeof(ident
), "%s[%d]", arg0
, in
->proc
.pid
);
455 ulog_open(ULOG_SYSLOG
, LOG_DAEMON
, ident
);
458 str
= ustream_get_read_buf(s
, NULL
);
462 newline
= strchr(str
, '\n');
467 ulog(prio
, "%s\n", str
);
469 len
= newline
+ 1 - str
;
470 ustream_consume(s
, len
);
473 ulog_open(ULOG_SYSLOG
, LOG_DAEMON
, "procd");
477 instance_stdout(struct ustream
*s
, int bytes
)
479 instance_stdio(s
, LOG_INFO
,
480 container_of(s
, struct service_instance
, _stdout
.stream
));
484 instance_stderr(struct ustream
*s
, int bytes
)
486 instance_stdio(s
, LOG_ERR
,
487 container_of(s
, struct service_instance
, _stderr
.stream
));
491 instance_timeout(struct uloop_timeout
*t
)
493 struct service_instance
*in
;
495 in
= container_of(t
, struct service_instance
, timeout
);
497 if (!in
->halt
&& (in
->restart
|| in
->respawn
))
502 instance_exit(struct uloop_process
*p
, int ret
)
504 struct service_instance
*in
;
508 in
= container_of(p
, struct service_instance
, proc
);
510 clock_gettime(CLOCK_MONOTONIC
, &tp
);
511 runtime
= tp
.tv_sec
- in
->start
.tv_sec
;
513 DEBUG(2, "Instance %s::%s exit with error code %d after %ld seconds\n", in
->srv
->name
, in
->name
, ret
, runtime
);
517 uloop_timeout_cancel(&in
->timeout
);
519 instance_removepid(in
);
520 } else if (in
->restart
) {
522 } else if (in
->respawn
) {
523 if (runtime
< in
->respawn_threshold
)
526 in
->respawn_count
= 0;
527 if (in
->respawn_count
> in
->respawn_retry
&& in
->respawn_retry
> 0 ) {
528 LOG("Instance %s::%s s in a crash loop %d crashes, %ld seconds since last crash\n",
529 in
->srv
->name
, in
->name
, in
->respawn_count
, runtime
);
530 in
->restart
= in
->respawn
= 0;
532 service_event("instance.fail", in
->srv
->name
, in
->name
);
534 service_event("instance.respawn", in
->srv
->name
, in
->name
);
535 uloop_timeout_set(&in
->timeout
, in
->respawn_timeout
* 1000);
538 service_event("instance.stop", in
->srv
->name
, in
->name
);
542 instance_stop(struct service_instance
*in
)
544 if (!in
->proc
.pending
)
547 in
->restart
= in
->respawn
= false;
548 kill(in
->proc
.pid
, SIGTERM
);
552 instance_restart(struct service_instance
*in
)
554 if (!in
->proc
.pending
)
557 if (in
->reload_signal
) {
558 kill(in
->proc
.pid
, in
->reload_signal
);
564 kill(in
->proc
.pid
, SIGTERM
);
565 instance_removepid(in
);
569 instance_config_changed(struct service_instance
*in
, struct service_instance
*in_new
)
574 if (!blob_attr_equal(in
->command
, in_new
->command
))
577 if (!blobmsg_list_equal(&in
->env
, &in_new
->env
))
580 if (!blobmsg_list_equal(&in
->netdev
, &in_new
->netdev
))
583 if (!blobmsg_list_equal(&in
->file
, &in_new
->file
))
586 if (in
->nice
!= in_new
->nice
)
589 if (in
->uid
!= in_new
->uid
)
592 if (in
->gid
!= in_new
->gid
)
595 if (in
->pidfile
&& in_new
->pidfile
)
596 if (strcmp(in
->pidfile
, in_new
->pidfile
))
599 if (in
->pidfile
&& !in_new
->pidfile
)
602 if (!in
->pidfile
&& in_new
->pidfile
)
605 if (!blobmsg_list_equal(&in
->limits
, &in_new
->limits
))
608 if (!blobmsg_list_equal(&in
->jail
.mount
, &in_new
->jail
.mount
))
611 if (!blobmsg_list_equal(&in
->errors
, &in_new
->errors
))
618 instance_netdev_cmp(struct blobmsg_list_node
*l1
, struct blobmsg_list_node
*l2
)
620 struct instance_netdev
*n1
= container_of(l1
, struct instance_netdev
, node
);
621 struct instance_netdev
*n2
= container_of(l2
, struct instance_netdev
, node
);
623 return n1
->ifindex
== n2
->ifindex
;
627 instance_netdev_update(struct blobmsg_list_node
*l
)
629 struct instance_netdev
*n
= container_of(l
, struct instance_netdev
, node
);
631 n
->ifindex
= if_nametoindex(n
->node
.avl
.key
);
635 instance_file_cmp(struct blobmsg_list_node
*l1
, struct blobmsg_list_node
*l2
)
637 struct instance_file
*f1
= container_of(l1
, struct instance_file
, node
);
638 struct instance_file
*f2
= container_of(l2
, struct instance_file
, node
);
640 return !memcmp(f1
->md5
, f2
->md5
, sizeof(f1
->md5
));
644 instance_file_update(struct blobmsg_list_node
*l
)
646 struct instance_file
*f
= container_of(l
, struct instance_file
, node
);
651 memset(f
->md5
, 0, sizeof(f
->md5
));
653 fd
= open(l
->avl
.key
, O_RDONLY
);
659 len
= read(fd
, buf
, sizeof(buf
));
669 md5_hash(buf
, len
, &md5
);
672 md5_end(f
->md5
, &md5
);
677 instance_fill_any(struct blobmsg_list
*l
, struct blob_attr
*cur
)
682 blobmsg_list_fill(l
, blobmsg_data(cur
), blobmsg_data_len(cur
), false);
686 instance_fill_array(struct blobmsg_list
*l
, struct blob_attr
*cur
, blobmsg_update_cb cb
, bool array
)
688 struct blobmsg_list_node
*node
;
693 if (!blobmsg_check_attr_list(cur
, BLOBMSG_TYPE_STRING
))
696 blobmsg_list_fill(l
, blobmsg_data(cur
), blobmsg_data_len(cur
), array
);
698 blobmsg_list_for_each(l
, node
)
705 instance_jail_parse(struct service_instance
*in
, struct blob_attr
*attr
)
707 struct blob_attr
*tb
[__JAIL_ATTR_MAX
];
708 struct jail
*jail
= &in
->jail
;
711 if (stat("/sbin/ujail", &s
))
714 blobmsg_parse(jail_attr
, __JAIL_ATTR_MAX
, tb
,
715 blobmsg_data(attr
), blobmsg_data_len(attr
));
719 if (tb
[JAIL_ATTR_NAME
]) {
720 jail
->name
= blobmsg_get_string(tb
[JAIL_ATTR_NAME
]);
723 if (tb
[JAIL_ATTR_HOSTNAME
]) {
724 jail
->hostname
= blobmsg_get_string(tb
[JAIL_ATTR_HOSTNAME
]);
727 if (tb
[JAIL_ATTR_PROCFS
]) {
728 jail
->procfs
= blobmsg_get_bool(tb
[JAIL_ATTR_PROCFS
]);
731 if (tb
[JAIL_ATTR_SYSFS
]) {
732 jail
->sysfs
= blobmsg_get_bool(tb
[JAIL_ATTR_SYSFS
]);
735 if (tb
[JAIL_ATTR_UBUS
]) {
736 jail
->ubus
= blobmsg_get_bool(tb
[JAIL_ATTR_UBUS
]);
739 if (tb
[JAIL_ATTR_LOG
]) {
740 jail
->log
= blobmsg_get_bool(tb
[JAIL_ATTR_LOG
]);
743 if (tb
[JAIL_ATTR_RONLY
]) {
744 jail
->ronly
= blobmsg_get_bool(tb
[JAIL_ATTR_RONLY
]);
747 if (tb
[JAIL_ATTR_MOUNT
]) {
748 struct blob_attr
*cur
;
751 blobmsg_for_each_attr(cur
, tb
[JAIL_ATTR_MOUNT
], rem
)
753 instance_fill_array(&jail
->mount
, tb
[JAIL_ATTR_MOUNT
], NULL
, false);
762 instance_config_parse_command(struct service_instance
*in
, struct blob_attr
**tb
)
764 struct blob_attr
*cur
, *cur2
;
768 cur
= tb
[INSTANCE_ATTR_COMMAND
];
774 if (!blobmsg_check_attr_list(cur
, BLOBMSG_TYPE_STRING
))
777 blobmsg_for_each_attr(cur2
, cur
, rem
) {
787 instance_config_parse(struct service_instance
*in
)
789 struct blob_attr
*tb
[__INSTANCE_ATTR_MAX
];
790 struct blob_attr
*cur
, *cur2
;
793 blobmsg_parse(instance_attr
, __INSTANCE_ATTR_MAX
, tb
,
794 blobmsg_data(in
->config
), blobmsg_data_len(in
->config
));
796 if (!instance_config_parse_command(in
, tb
))
799 if (tb
[INSTANCE_ATTR_RESPAWN
]) {
801 uint32_t vals
[3] = { 3600, 5, 5};
803 blobmsg_for_each_attr(cur2
, tb
[INSTANCE_ATTR_RESPAWN
], rem
) {
804 if ((i
>= 3) && (blobmsg_type(cur2
) == BLOBMSG_TYPE_STRING
))
806 vals
[i
] = atoi(blobmsg_get_string(cur2
));
810 in
->respawn_count
= 0;
811 in
->respawn_threshold
= vals
[0];
812 in
->respawn_timeout
= vals
[1];
813 in
->respawn_retry
= vals
[2];
815 if (tb
[INSTANCE_ATTR_TRIGGER
]) {
816 in
->trigger
= tb
[INSTANCE_ATTR_TRIGGER
];
817 trigger_add(in
->trigger
, in
);
820 if (tb
[INSTANCE_ATTR_WATCH
]) {
821 blobmsg_for_each_attr(cur2
, tb
[INSTANCE_ATTR_WATCH
], rem
) {
822 if (blobmsg_type(cur2
) != BLOBMSG_TYPE_STRING
)
824 DEBUG(3, "watch for %s\n", blobmsg_get_string(cur2
));
825 watch_add(blobmsg_get_string(cur2
), in
);
829 if ((cur
= tb
[INSTANCE_ATTR_NICE
])) {
830 in
->nice
= (int8_t) blobmsg_get_u32(cur
);
831 if (in
->nice
< -20 || in
->nice
> 20)
835 if (tb
[INSTANCE_ATTR_USER
]) {
836 struct passwd
*p
= getpwnam(blobmsg_get_string(tb
[INSTANCE_ATTR_USER
]));
843 if (tb
[INSTANCE_ATTR_TRACE
])
844 in
->trace
= blobmsg_get_bool(tb
[INSTANCE_ATTR_TRACE
]);
846 if (tb
[INSTANCE_ATTR_NO_NEW_PRIVS
])
847 in
->no_new_privs
= blobmsg_get_bool(tb
[INSTANCE_ATTR_NO_NEW_PRIVS
]);
849 if (!in
->trace
&& tb
[INSTANCE_ATTR_SECCOMP
]) {
850 char *seccomp
= blobmsg_get_string(tb
[INSTANCE_ATTR_SECCOMP
]);
853 if (stat(seccomp
, &s
))
854 ERROR("%s: not starting seccomp as %s is missing\n", in
->name
, seccomp
);
856 in
->seccomp
= seccomp
;
859 if (tb
[INSTANCE_ATTR_PIDFILE
]) {
860 char *pidfile
= blobmsg_get_string(tb
[INSTANCE_ATTR_PIDFILE
]);
862 in
->pidfile
= pidfile
;
865 if (tb
[INSTANCE_ATTR_RELOADSIG
])
866 in
->reload_signal
= blobmsg_get_u32(tb
[INSTANCE_ATTR_RELOADSIG
]);
868 if (!in
->trace
&& tb
[INSTANCE_ATTR_JAIL
])
869 in
->has_jail
= instance_jail_parse(in
, tb
[INSTANCE_ATTR_JAIL
]);
871 if (tb
[INSTANCE_ATTR_STDOUT
] && blobmsg_get_bool(tb
[INSTANCE_ATTR_STDOUT
]))
872 in
->_stdout
.fd
.fd
= -1;
874 if (tb
[INSTANCE_ATTR_STDERR
] && blobmsg_get_bool(tb
[INSTANCE_ATTR_STDERR
]))
875 in
->_stderr
.fd
.fd
= -1;
877 instance_fill_any(&in
->data
, tb
[INSTANCE_ATTR_DATA
]);
879 if (!instance_fill_array(&in
->env
, tb
[INSTANCE_ATTR_ENV
], NULL
, false))
882 if (!instance_fill_array(&in
->netdev
, tb
[INSTANCE_ATTR_NETDEV
], instance_netdev_update
, true))
885 if (!instance_fill_array(&in
->file
, tb
[INSTANCE_ATTR_FILE
], instance_file_update
, true))
888 if (!instance_fill_array(&in
->limits
, tb
[INSTANCE_ATTR_LIMITS
], NULL
, false))
891 if (!instance_fill_array(&in
->errors
, tb
[INSTANCE_ATTR_ERROR
], NULL
, true))
898 instance_config_cleanup(struct service_instance
*in
)
900 blobmsg_list_free(&in
->env
);
901 blobmsg_list_free(&in
->data
);
902 blobmsg_list_free(&in
->netdev
);
903 blobmsg_list_free(&in
->file
);
904 blobmsg_list_free(&in
->limits
);
905 blobmsg_list_free(&in
->errors
);
906 blobmsg_list_free(&in
->jail
.mount
);
910 instance_config_move(struct service_instance
*in
, struct service_instance
*in_src
)
912 instance_config_cleanup(in
);
913 blobmsg_list_move(&in
->env
, &in_src
->env
);
914 blobmsg_list_move(&in
->data
, &in_src
->data
);
915 blobmsg_list_move(&in
->netdev
, &in_src
->netdev
);
916 blobmsg_list_move(&in
->file
, &in_src
->file
);
917 blobmsg_list_move(&in
->limits
, &in_src
->limits
);
918 blobmsg_list_move(&in
->errors
, &in_src
->errors
);
919 blobmsg_list_move(&in
->jail
.mount
, &in_src
->jail
.mount
);
920 in
->trigger
= in_src
->trigger
;
921 in
->command
= in_src
->command
;
922 in
->pidfile
= in_src
->pidfile
;
923 in
->name
= in_src
->name
;
924 in
->node
.avl
.key
= in_src
->node
.avl
.key
;
927 in
->config
= in_src
->config
;
928 in_src
->config
= NULL
;
932 instance_update(struct service_instance
*in
, struct service_instance
*in_new
)
934 bool changed
= instance_config_changed(in
, in_new
);
935 bool running
= in
->proc
.pending
;
938 instance_config_move(in
, in_new
);
942 instance_restart(in
);
943 instance_config_move(in
, in_new
);
944 /* restart happens in the child callback handler */
949 instance_free(struct service_instance
*in
)
951 instance_free_stdio(in
);
952 uloop_process_delete(&in
->proc
);
953 uloop_timeout_cancel(&in
->timeout
);
956 instance_config_cleanup(in
);
962 instance_init(struct service_instance
*in
, struct service
*s
, struct blob_attr
*config
)
964 config
= blob_memdup(config
);
966 in
->name
= blobmsg_name(config
);
968 in
->timeout
.cb
= instance_timeout
;
969 in
->proc
.cb
= instance_exit
;
971 in
->_stdout
.fd
.fd
= -2;
972 in
->_stdout
.stream
.string_data
= true;
973 in
->_stdout
.stream
.notify_read
= instance_stdout
;
975 in
->_stderr
.fd
.fd
= -2;
976 in
->_stderr
.stream
.string_data
= true;
977 in
->_stderr
.stream
.notify_read
= instance_stderr
;
979 blobmsg_list_init(&in
->netdev
, struct instance_netdev
, node
, instance_netdev_cmp
);
980 blobmsg_list_init(&in
->file
, struct instance_file
, node
, instance_file_cmp
);
981 blobmsg_list_simple_init(&in
->env
);
982 blobmsg_list_simple_init(&in
->data
);
983 blobmsg_list_simple_init(&in
->limits
);
984 blobmsg_list_simple_init(&in
->errors
);
985 blobmsg_list_simple_init(&in
->jail
.mount
);
986 in
->valid
= instance_config_parse(in
);
989 void instance_dump(struct blob_buf
*b
, struct service_instance
*in
, int verbose
)
996 i
= blobmsg_open_table(b
, in
->name
);
997 blobmsg_add_u8(b
, "running", in
->proc
.pending
);
998 if (in
->proc
.pending
)
999 blobmsg_add_u32(b
, "pid", in
->proc
.pid
);
1001 blobmsg_add_blob(b
, in
->command
);
1003 if (!avl_is_empty(&in
->errors
.avl
)) {
1004 struct blobmsg_list_node
*var
;
1005 void *e
= blobmsg_open_array(b
, "errors");
1006 blobmsg_list_for_each(&in
->errors
, var
)
1007 blobmsg_add_string(b
, NULL
, blobmsg_data(var
->data
));
1008 blobmsg_close_table(b
, e
);
1011 if (!avl_is_empty(&in
->env
.avl
)) {
1012 struct blobmsg_list_node
*var
;
1013 void *e
= blobmsg_open_table(b
, "env");
1014 blobmsg_list_for_each(&in
->env
, var
)
1015 blobmsg_add_string(b
, blobmsg_name(var
->data
), blobmsg_data(var
->data
));
1016 blobmsg_close_table(b
, e
);
1019 if (!avl_is_empty(&in
->data
.avl
)) {
1020 struct blobmsg_list_node
*var
;
1021 void *e
= blobmsg_open_table(b
, "data");
1022 blobmsg_list_for_each(&in
->data
, var
)
1023 blobmsg_add_blob(b
, var
->data
);
1024 blobmsg_close_table(b
, e
);
1027 if (!avl_is_empty(&in
->limits
.avl
)) {
1028 struct blobmsg_list_node
*var
;
1029 void *e
= blobmsg_open_table(b
, "limits");
1030 blobmsg_list_for_each(&in
->limits
, var
)
1031 blobmsg_add_string(b
, blobmsg_name(var
->data
), blobmsg_data(var
->data
));
1032 blobmsg_close_table(b
, e
);
1035 if (in
->reload_signal
)
1036 blobmsg_add_u32(b
, "reload_signal", in
->reload_signal
);
1039 void *r
= blobmsg_open_table(b
, "respawn");
1040 blobmsg_add_u32(b
, "threshold", in
->respawn_threshold
);
1041 blobmsg_add_u32(b
, "timeout", in
->respawn_timeout
);
1042 blobmsg_add_u32(b
, "retry", in
->respawn_retry
);
1043 blobmsg_close_table(b
, r
);
1047 blobmsg_add_u8(b
, "trace", true);
1049 if (in
->no_new_privs
)
1050 blobmsg_add_u8(b
, "no_new_privs", true);
1053 blobmsg_add_string(b
, "seccomp", in
->seccomp
);
1056 blobmsg_add_string(b
, "pidfile", in
->pidfile
);
1059 void *r
= blobmsg_open_table(b
, "jail");
1061 blobmsg_add_string(b
, "name", in
->jail
.name
);
1062 if (in
->jail
.hostname
)
1063 blobmsg_add_string(b
, "hostname", in
->jail
.hostname
);
1064 blobmsg_add_u8(b
, "procfs", in
->jail
.procfs
);
1065 blobmsg_add_u8(b
, "sysfs", in
->jail
.sysfs
);
1066 blobmsg_add_u8(b
, "ubus", in
->jail
.ubus
);
1067 blobmsg_add_u8(b
, "log", in
->jail
.log
);
1068 blobmsg_add_u8(b
, "ronly", in
->jail
.ronly
);
1069 blobmsg_close_table(b
, r
);
1070 if (!avl_is_empty(&in
->jail
.mount
.avl
)) {
1071 struct blobmsg_list_node
*var
;
1072 void *e
= blobmsg_open_table(b
, "mount");
1073 blobmsg_list_for_each(&in
->jail
.mount
, var
)
1074 blobmsg_add_string(b
, blobmsg_name(var
->data
), blobmsg_data(var
->data
));
1075 blobmsg_close_table(b
, e
);
1079 if (verbose
&& in
->trigger
)
1080 blobmsg_add_blob(b
, in
->trigger
);
1082 blobmsg_close_table(b
, i
);