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.
15 #include <libubox/blobmsg_json.h>
16 #include <libubox/avl-cmp.h>
25 AVL_TREE(services
, avl_strcmp
, false, NULL
);
26 static struct blob_buf b
;
27 static struct ubus_context
*ctx
;
30 service_instance_add(struct service
*s
, struct blob_attr
*attr
)
32 struct service_instance
*in
;
34 if (blobmsg_type(attr
) != BLOBMSG_TYPE_TABLE
)
37 in
= calloc(1, sizeof(*in
));
41 instance_init(in
, s
, attr
);
42 vlist_add(&s
->instances
, &in
->node
, (void *) in
->name
);
46 service_instance_update(struct vlist_tree
*tree
, struct vlist_node
*node_new
,
47 struct vlist_node
*node_old
)
49 struct service_instance
*in_o
= NULL
, *in_n
= NULL
;
52 in_o
= container_of(node_old
, struct service_instance
, node
);
55 in_n
= container_of(node_new
, struct service_instance
, node
);
58 DEBUG(2, "Update instance %s::%s\n", in_o
->srv
->name
, in_o
->name
);
59 instance_update(in_o
, in_n
);
62 DEBUG(2, "Stop instance %s::%s\n", in_o
->srv
->name
, in_o
->name
);
63 instance_stop(in_o
, true);
64 } else if (in_n
&& in_n
->srv
->autostart
) {
65 DEBUG(2, "Start instance %s::%s\n", in_n
->srv
->name
, in_n
->name
);
69 trigger_event("instance.update", b
.head
);
72 static struct service
*
73 service_alloc(const char *name
)
78 s
= calloc_a(sizeof(*s
), &new_name
, strlen(name
) + 1);
79 strcpy(new_name
, name
);
81 vlist_init(&s
->instances
, avl_strcmp
, service_instance_update
);
82 s
->instances
.no_delete
= true;
85 INIT_LIST_HEAD(&s
->validators
);
93 SERVICE_SET_INSTANCES
,
96 SERVICE_SET_AUTOSTART
,
100 static const struct blobmsg_policy service_set_attrs
[__SERVICE_SET_MAX
] = {
101 [SERVICE_SET_NAME
] = { "name", BLOBMSG_TYPE_STRING
},
102 [SERVICE_SET_SCRIPT
] = { "script", BLOBMSG_TYPE_STRING
},
103 [SERVICE_SET_INSTANCES
] = { "instances", BLOBMSG_TYPE_TABLE
},
104 [SERVICE_SET_TRIGGER
] = { "triggers", BLOBMSG_TYPE_ARRAY
},
105 [SERVICE_SET_VALIDATE
] = { "validate", BLOBMSG_TYPE_ARRAY
},
106 [SERVICE_SET_AUTOSTART
] = { "autostart", BLOBMSG_TYPE_BOOL
},
110 service_update(struct service
*s
, struct blob_attr
**tb
, bool add
)
112 struct blob_attr
*cur
;
121 service_validate_del(s
);
123 if (tb
[SERVICE_SET_AUTOSTART
] && !blobmsg_get_bool(tb
[SERVICE_SET_AUTOSTART
]))
124 s
->autostart
= false;
128 if (tb
[SERVICE_SET_TRIGGER
] && blobmsg_data_len(tb
[SERVICE_SET_TRIGGER
])) {
129 s
->trigger
= blob_memdup(tb
[SERVICE_SET_TRIGGER
]);
132 trigger_add(s
->trigger
, s
);
135 if (tb
[SERVICE_SET_VALIDATE
] && blobmsg_data_len(tb
[SERVICE_SET_VALIDATE
])) {
136 blobmsg_for_each_attr(cur
, tb
[SERVICE_SET_VALIDATE
], rem
)
137 service_validate_add(s
, cur
);
140 if (tb
[SERVICE_SET_INSTANCES
]) {
142 vlist_update(&s
->instances
);
143 blobmsg_for_each_attr(cur
, tb
[SERVICE_SET_INSTANCES
], rem
) {
144 service_instance_add(s
, cur
);
147 vlist_flush(&s
->instances
);
152 rc(s
->name
, "running");
158 service_delete(struct service
*s
)
160 vlist_flush_all(&s
->instances
);
170 static const struct blobmsg_policy service_attrs
[__SERVICE_ATTR_MAX
] = {
171 [SERVICE_ATTR_NAME
] = { "name", BLOBMSG_TYPE_STRING
},
175 SERVICE_DEL_ATTR_NAME
,
176 SERVICE_DEL_ATTR_INSTANCE
,
177 __SERVICE_DEL_ATTR_MAX
,
180 static const struct blobmsg_policy service_del_attrs
[__SERVICE_DEL_ATTR_MAX
] = {
181 [SERVICE_DEL_ATTR_NAME
] = { "name", BLOBMSG_TYPE_STRING
},
182 [SERVICE_DEL_ATTR_INSTANCE
] = { "instance", BLOBMSG_TYPE_STRING
},
186 SERVICE_LIST_ATTR_NAME
,
187 SERVICE_LIST_ATTR_VERBOSE
,
188 __SERVICE_LIST_ATTR_MAX
,
191 static const struct blobmsg_policy service_list_attrs
[__SERVICE_LIST_ATTR_MAX
] = {
192 [SERVICE_LIST_ATTR_NAME
] = { "name", BLOBMSG_TYPE_STRING
},
193 [SERVICE_LIST_ATTR_VERBOSE
] = { "verbose", BLOBMSG_TYPE_BOOL
},
197 SERVICE_SIGNAL_ATTR_NAME
,
198 SERVICE_SIGNAL_ATTR_INSTANCE
,
199 SERVICE_SIGNAL_ATTR_SIGNAL
,
200 __SERVICE_SIGNAL_ATTR_MAX
,
203 static const struct blobmsg_policy service_signal_attrs
[__SERVICE_SIGNAL_ATTR_MAX
] = {
204 [SERVICE_SIGNAL_ATTR_NAME
] = { "name", BLOBMSG_TYPE_STRING
},
205 [SERVICE_SIGNAL_ATTR_INSTANCE
] = { "instance", BLOBMSG_TYPE_STRING
},
206 [SERVICE_SIGNAL_ATTR_SIGNAL
] = { "signal", BLOBMSG_TYPE_INT32
},
210 SERVICE_STATE_ATTR_SPAWN
,
211 SERVICE_STATE_ATTR_NAME
,
212 __SERVICE_STATE_ATTR_MAX
,
215 static const struct blobmsg_policy service_state_attrs
[__SERVICE_STATE_ATTR_MAX
] = {
216 [SERVICE_STATE_ATTR_SPAWN
] = { "spawn", BLOBMSG_TYPE_BOOL
},
217 [SERVICE_STATE_ATTR_NAME
] = { "name", BLOBMSG_TYPE_STRING
},
226 static const struct blobmsg_policy event_policy
[__EVENT_MAX
] = {
227 [EVENT_TYPE
] = { .name
= "type", .type
= BLOBMSG_TYPE_STRING
},
228 [EVENT_DATA
] = { .name
= "data", .type
= BLOBMSG_TYPE_TABLE
},
238 static const struct blobmsg_policy validate_policy
[__VALIDATE_MAX
] = {
239 [VALIDATE_PACKAGE
] = { .name
= "package", .type
= BLOBMSG_TYPE_STRING
},
240 [VALIDATE_TYPE
] = { .name
= "type", .type
= BLOBMSG_TYPE_STRING
},
241 [VALIDATE_SERVICE
] = { .name
= "service", .type
= BLOBMSG_TYPE_STRING
},
251 static const struct blobmsg_policy get_data_policy
[] = {
252 [DATA_NAME
] = { "name", BLOBMSG_TYPE_STRING
},
253 [DATA_INSTANCE
] = { "instance", BLOBMSG_TYPE_STRING
},
254 [DATA_TYPE
] = { "type", BLOBMSG_TYPE_STRING
},
258 service_handle_set(struct ubus_context
*ctx
, struct ubus_object
*obj
,
259 struct ubus_request_data
*req
, const char *method
,
260 struct blob_attr
*msg
)
262 struct blob_attr
*tb
[__SERVICE_SET_MAX
], *cur
;
263 struct service
*s
= NULL
;
265 bool add
= !strcmp(method
, "add");
268 blobmsg_parse(service_set_attrs
, __SERVICE_SET_MAX
, tb
, blob_data(msg
), blob_len(msg
));
269 cur
= tb
[SERVICE_ATTR_NAME
];
271 return UBUS_STATUS_INVALID_ARGUMENT
;
273 name
= blobmsg_data(cur
);
275 s
= avl_find_element(&services
, name
, s
, avl
);
277 DEBUG(2, "Update service %s\n", name
);
278 return service_update(s
, tb
, add
);
281 DEBUG(2, "Create service %s\n", name
);
282 s
= service_alloc(name
);
284 return UBUS_STATUS_UNKNOWN_ERROR
;
286 ret
= service_update(s
, tb
, add
);
290 avl_insert(&services
, &s
->avl
);
292 service_event("service.start", s
->name
, NULL
);
298 service_dump(struct service
*s
, bool verbose
)
300 struct service_instance
*in
;
303 c
= blobmsg_open_table(&b
, s
->name
);
306 blobmsg_add_u8(&b
, "autostart", false);
308 if (!avl_is_empty(&s
->instances
.avl
)) {
309 i
= blobmsg_open_table(&b
, "instances");
310 vlist_for_each_element(&s
->instances
, in
, node
)
311 instance_dump(&b
, in
, verbose
);
312 blobmsg_close_table(&b
, i
);
314 if (verbose
&& s
->trigger
)
315 blobmsg_add_blob(&b
, s
->trigger
);
316 if (verbose
&& !list_empty(&s
->validators
))
317 service_validate_dump(&b
, s
);
318 blobmsg_close_table(&b
, c
);
322 service_handle_list(struct ubus_context
*ctx
, struct ubus_object
*obj
,
323 struct ubus_request_data
*req
, const char *method
,
324 struct blob_attr
*msg
)
326 struct blob_attr
*tb
[__SERVICE_LIST_ATTR_MAX
];
328 const char *name
= NULL
;
329 bool verbose
= false;
331 blobmsg_parse(service_list_attrs
, __SERVICE_LIST_ATTR_MAX
, tb
, blob_data(msg
), blob_len(msg
));
333 if (tb
[SERVICE_LIST_ATTR_VERBOSE
])
334 verbose
= blobmsg_get_bool(tb
[SERVICE_LIST_ATTR_VERBOSE
]);
335 if (tb
[SERVICE_LIST_ATTR_NAME
])
336 name
= blobmsg_get_string(tb
[SERVICE_LIST_ATTR_NAME
]);
338 blob_buf_init(&b
, 0);
339 avl_for_each_element(&services
, s
, avl
) {
340 if (name
&& strcmp(s
->name
, name
) != 0)
343 service_dump(s
, verbose
);
346 ubus_send_reply(ctx
, req
, b
.head
);
352 service_handle_delete(struct ubus_context
*ctx
, struct ubus_object
*obj
,
353 struct ubus_request_data
*req
, const char *method
,
354 struct blob_attr
*msg
)
356 struct blob_attr
*tb
[__SERVICE_DEL_ATTR_MAX
], *cur
;
358 struct service_instance
*in
;
360 blobmsg_parse(service_del_attrs
, __SERVICE_DEL_ATTR_MAX
, tb
, blob_data(msg
), blob_len(msg
));
362 cur
= tb
[SERVICE_DEL_ATTR_NAME
];
364 return UBUS_STATUS_NOT_FOUND
;
366 s
= avl_find_element(&services
, blobmsg_data(cur
), s
, avl
);
368 return UBUS_STATUS_NOT_FOUND
;
370 cur
= tb
[SERVICE_DEL_ATTR_INSTANCE
];
376 in
= vlist_find(&s
->instances
, blobmsg_data(cur
), in
, node
);
378 ERROR("instance %s not found\n", (char *) blobmsg_data(cur
));
379 return UBUS_STATUS_NOT_FOUND
;
382 vlist_delete(&s
->instances
, &in
->node
);
388 service_handle_kill(struct service_instance
*in
, int sig
)
390 if (kill(in
->proc
.pid
, sig
) == 0)
394 case EINVAL
: return UBUS_STATUS_INVALID_ARGUMENT
;
395 case EPERM
: return UBUS_STATUS_PERMISSION_DENIED
;
396 case ESRCH
: return UBUS_STATUS_NOT_FOUND
;
399 return UBUS_STATUS_UNKNOWN_ERROR
;
403 service_handle_signal(struct ubus_context
*ctx
, struct ubus_object
*obj
,
404 struct ubus_request_data
*req
, const char *method
,
405 struct blob_attr
*msg
)
407 struct blob_attr
*tb
[__SERVICE_SIGNAL_ATTR_MAX
], *cur
;
409 struct service_instance
*in
;
413 blobmsg_parse(service_signal_attrs
, __SERVICE_SIGNAL_ATTR_MAX
, tb
, blob_data(msg
), blob_len(msg
));
415 cur
= tb
[SERVICE_SIGNAL_ATTR_SIGNAL
];
417 sig
= blobmsg_get_u32(cur
);
419 cur
= tb
[SERVICE_SIGNAL_ATTR_NAME
];
421 return UBUS_STATUS_NOT_FOUND
;
423 s
= avl_find_element(&services
, blobmsg_data(cur
), s
, avl
);
425 return UBUS_STATUS_NOT_FOUND
;
427 cur
= tb
[SERVICE_SIGNAL_ATTR_INSTANCE
];
429 vlist_for_each_element(&s
->instances
, in
, node
)
430 rv
= service_handle_kill(in
, sig
);
435 in
= vlist_find(&s
->instances
, blobmsg_data(cur
), in
, node
);
437 ERROR("instance %s not found\n", blobmsg_get_string(cur
));
438 return UBUS_STATUS_NOT_FOUND
;
441 return service_handle_kill(in
, sig
);
445 service_handle_state(struct ubus_context
*ctx
, struct ubus_object
*obj
,
446 struct ubus_request_data
*req
, const char *method
,
447 struct blob_attr
*msg
)
449 struct blob_attr
*tb
[__SERVICE_STATE_ATTR_MAX
];
451 struct service_instance
*in
;
454 blobmsg_parse(service_state_attrs
, __SERVICE_STATE_ATTR_MAX
, tb
, blob_data(msg
), blob_len(msg
));
456 if (!tb
[SERVICE_STATE_ATTR_SPAWN
])
457 return UBUS_STATUS_INVALID_ARGUMENT
;
459 if (!tb
[SERVICE_STATE_ATTR_NAME
])
460 return UBUS_STATUS_NOT_FOUND
;
462 s
= avl_find_element(&services
, blobmsg_data(tb
[SERVICE_STATE_ATTR_NAME
]), s
, avl
);
464 return UBUS_STATUS_NOT_FOUND
;
466 spawn
= !!blobmsg_get_u8(tb
[SERVICE_STATE_ATTR_SPAWN
]);
467 vlist_for_each_element(&s
->instances
, in
, node
) {
468 if (!!in
->proc
.pending
== !!spawn
)
470 else if (!in
->proc
.pending
)
473 instance_stop(in
, false);
476 return UBUS_STATUS_OK
;
480 service_handle_update(struct ubus_context
*ctx
, struct ubus_object
*obj
,
481 struct ubus_request_data
*req
, const char *method
,
482 struct blob_attr
*msg
)
484 struct blob_attr
*tb
[__SERVICE_ATTR_MAX
], *cur
;
487 blobmsg_parse(service_attrs
, __SERVICE_ATTR_MAX
, tb
, blob_data(msg
), blob_len(msg
));
489 cur
= tb
[SERVICE_SET_NAME
];
491 return UBUS_STATUS_INVALID_ARGUMENT
;
493 s
= avl_find_element(&services
, blobmsg_data(cur
), s
, avl
);
495 return UBUS_STATUS_NOT_FOUND
;
497 if (!strcmp(method
, "update_start"))
498 vlist_update(&s
->instances
);
500 vlist_flush(&s
->instances
);
506 service_handle_event(struct ubus_context
*ctx
, struct ubus_object
*obj
,
507 struct ubus_request_data
*req
, const char *method
,
508 struct blob_attr
*msg
)
510 struct blob_attr
*tb
[__EVENT_MAX
];
513 return UBUS_STATUS_INVALID_ARGUMENT
;
515 blobmsg_parse(event_policy
, __EVENT_MAX
, tb
, blob_data(msg
), blob_len(msg
));
516 if (!tb
[EVENT_TYPE
] || !tb
[EVENT_DATA
])
517 return UBUS_STATUS_INVALID_ARGUMENT
;
519 trigger_event(blobmsg_get_string(tb
[EVENT_TYPE
]), tb
[EVENT_DATA
]);
525 service_handle_validate(struct ubus_context
*ctx
, struct ubus_object
*obj
,
526 struct ubus_request_data
*req
, const char *method
,
527 struct blob_attr
*msg
)
529 struct blob_attr
*tb
[__VALIDATE_MAX
];
530 char *p
= NULL
, *t
= NULL
;
533 return UBUS_STATUS_INVALID_ARGUMENT
;
535 blobmsg_parse(validate_policy
, __VALIDATE_MAX
, tb
, blob_data(msg
), blob_len(msg
));
536 if (tb
[VALIDATE_SERVICE
]) {
539 if (tb
[VALIDATE_PACKAGE
])
540 p
= blobmsg_get_string(tb
[VALIDATE_PACKAGE
]);
542 if (tb
[VALIDATE_TYPE
])
543 t
= blobmsg_get_string(tb
[VALIDATE_TYPE
]);
545 blob_buf_init(&b
, 0);
546 service_validate_dump_all(&b
, p
, t
);
547 ubus_send_reply(ctx
, req
, b
.head
);
553 service_get_data(struct ubus_context
*ctx
, struct ubus_object
*obj
,
554 struct ubus_request_data
*req
, const char *method
,
555 struct blob_attr
*msg
)
557 struct service_instance
*in
;
559 struct blob_attr
*tb
[__DATA_MAX
];
560 const char *name
= NULL
;
561 const char *instance
= NULL
;
562 const char *type
= NULL
;
564 blobmsg_parse(get_data_policy
, __DATA_MAX
, tb
, blob_data(msg
), blob_len(msg
));
566 name
= blobmsg_data(tb
[DATA_NAME
]);
567 if (tb
[DATA_INSTANCE
])
568 instance
= blobmsg_data(tb
[DATA_INSTANCE
]);
570 type
= blobmsg_data(tb
[DATA_TYPE
]);
572 blob_buf_init(&b
, 0);
573 avl_for_each_element(&services
, s
, avl
) {
576 if (name
&& strcmp(name
, s
->name
))
579 vlist_for_each_element(&s
->instances
, in
, node
) {
580 struct blobmsg_list_node
*var
;
583 if (instance
&& strcmp(instance
, in
->name
))
586 blobmsg_list_for_each(&in
->data
, var
) {
588 strcmp(blobmsg_name(var
->data
), type
))
592 cs
= blobmsg_open_table(&b
, s
->name
);
594 ci
= blobmsg_open_table(&b
, in
->name
);
596 blobmsg_add_blob(&b
, var
->data
);
600 blobmsg_close_table(&b
, ci
);
604 blobmsg_close_table(&b
, cs
);
607 ubus_send_reply(ctx
, req
, b
.head
);
611 static struct ubus_method main_object_methods
[] = {
612 UBUS_METHOD("set", service_handle_set
, service_set_attrs
),
613 UBUS_METHOD("add", service_handle_set
, service_set_attrs
),
614 UBUS_METHOD("list", service_handle_list
, service_list_attrs
),
615 UBUS_METHOD("delete", service_handle_delete
, service_del_attrs
),
616 UBUS_METHOD("signal", service_handle_signal
, service_signal_attrs
),
617 UBUS_METHOD("update_start", service_handle_update
, service_attrs
),
618 UBUS_METHOD("update_complete", service_handle_update
, service_attrs
),
619 UBUS_METHOD("event", service_handle_event
, event_policy
),
620 UBUS_METHOD("validate", service_handle_validate
, validate_policy
),
621 UBUS_METHOD("get_data", service_get_data
, get_data_policy
),
622 UBUS_METHOD("state", service_handle_state
, service_state_attrs
),
625 static struct ubus_object_type main_object_type
=
626 UBUS_OBJECT_TYPE("service", main_object_methods
);
628 static struct ubus_object main_object
= {
630 .type
= &main_object_type
,
631 .methods
= main_object_methods
,
632 .n_methods
= ARRAY_SIZE(main_object_methods
),
636 service_start_early(char *name
, char *cmdline
)
638 void *instances
, *instance
, *command
, *respawn
;
641 blob_buf_init(&b
, 0);
642 blobmsg_add_string(&b
, "name", name
);
643 instances
= blobmsg_open_table(&b
, "instances");
644 instance
= blobmsg_open_table(&b
, "instance1");
645 command
= blobmsg_open_array(&b
, "command");
646 t
= strtok(cmdline
, " ");
648 blobmsg_add_string(&b
, NULL
, t
);
649 t
= strtok(NULL
, " ");
651 blobmsg_close_array(&b
, command
);
652 respawn
= blobmsg_open_array(&b
, "respawn");
653 blobmsg_add_string(&b
, NULL
, "3600");
654 blobmsg_add_string(&b
, NULL
, "1");
655 blobmsg_add_string(&b
, NULL
, "0");
656 blobmsg_close_array(&b
, respawn
);
657 blobmsg_close_table(&b
, instance
);
658 blobmsg_close_table(&b
, instances
);
660 return service_handle_set(NULL
, NULL
, NULL
, "add", b
.head
);
663 void service_stopped(struct service
*s
)
665 if (s
->deleted
&& avl_is_empty(&s
->instances
.avl
)) {
666 service_event("service.stop", s
->name
, NULL
);
667 avl_delete(&services
, &s
->avl
);
671 service_validate_del(s
);
675 void service_event(const char *type
, const char *service
, const char *instance
)
680 blob_buf_init(&b
, 0);
681 blobmsg_add_string(&b
, "service", service
);
683 blobmsg_add_string(&b
, "instance", instance
);
684 ubus_notify(ctx
, &main_object
, type
, b
.head
, -1);
687 void ubus_init_service(struct ubus_context
*_ctx
)
690 ubus_add_object(ctx
, &main_object
);