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 struct avl_tree services
;
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, "Free instance %s::%s\n", in_o
->srv
->name
, in_o
->name
);
66 DEBUG(2, "Create instance %s::%s\n", in_n
->srv
->name
, in_n
->name
);
71 static struct service
*
72 service_alloc(const char *name
)
77 s
= calloc_a(sizeof(*s
), &new_name
, strlen(name
) + 1);
78 strcpy(new_name
, name
);
80 vlist_init(&s
->instances
, avl_strcmp
, service_instance_update
);
81 s
->instances
.keep_old
= true;
84 INIT_LIST_HEAD(&s
->validators
);
92 SERVICE_SET_INSTANCES
,
98 static const struct blobmsg_policy service_set_attrs
[__SERVICE_SET_MAX
] = {
99 [SERVICE_SET_NAME
] = { "name", BLOBMSG_TYPE_STRING
},
100 [SERVICE_SET_SCRIPT
] = { "script", BLOBMSG_TYPE_STRING
},
101 [SERVICE_SET_INSTANCES
] = { "instances", BLOBMSG_TYPE_TABLE
},
102 [SERVICE_SET_TRIGGER
] = { "triggers", BLOBMSG_TYPE_ARRAY
},
103 [SERVICE_SET_VALIDATE
] = { "validate", BLOBMSG_TYPE_ARRAY
},
107 service_update(struct service
*s
, struct blob_attr
**tb
, bool add
)
109 struct blob_attr
*cur
;
118 service_validate_del(s
);
120 if (tb
[SERVICE_SET_TRIGGER
] && blobmsg_data_len(tb
[SERVICE_SET_TRIGGER
])) {
121 s
->trigger
= blob_memdup(tb
[SERVICE_SET_TRIGGER
]);
124 trigger_add(s
->trigger
, s
);
127 if (tb
[SERVICE_SET_VALIDATE
] && blobmsg_data_len(tb
[SERVICE_SET_VALIDATE
])) {
128 blobmsg_for_each_attr(cur
, tb
[SERVICE_SET_VALIDATE
], rem
)
129 service_validate_add(s
, cur
);
132 if (tb
[SERVICE_SET_INSTANCES
]) {
134 vlist_update(&s
->instances
);
135 blobmsg_for_each_attr(cur
, tb
[SERVICE_SET_INSTANCES
], rem
) {
136 service_instance_add(s
, cur
);
139 vlist_flush(&s
->instances
);
142 rc(s
->name
, "running");
148 service_delete(struct service
*s
)
150 service_event("service.stop", s
->name
, NULL
);
151 vlist_flush_all(&s
->instances
);
152 avl_delete(&services
, &s
->avl
);
156 service_validate_del(s
);
164 static const struct blobmsg_policy service_attrs
[__SERVICE_ATTR_MAX
] = {
165 [SERVICE_ATTR_NAME
] = { "name", BLOBMSG_TYPE_STRING
},
169 SERVICE_DEL_ATTR_NAME
,
170 SERVICE_DEL_ATTR_INSTANCE
,
171 __SERVICE_DEL_ATTR_MAX
,
174 static const struct blobmsg_policy service_del_attrs
[__SERVICE_DEL_ATTR_MAX
] = {
175 [SERVICE_DEL_ATTR_NAME
] = { "name", BLOBMSG_TYPE_STRING
},
176 [SERVICE_DEL_ATTR_INSTANCE
] = { "instance", BLOBMSG_TYPE_STRING
},
180 SERVICE_LIST_ATTR_VERBOSE
,
181 __SERVICE_LIST_ATTR_MAX
,
184 static const struct blobmsg_policy service_list_attrs
[__SERVICE_LIST_ATTR_MAX
] = {
185 [SERVICE_LIST_ATTR_VERBOSE
] = { "verbose", BLOBMSG_TYPE_BOOL
},
194 static const struct blobmsg_policy event_policy
[__EVENT_MAX
] = {
195 [EVENT_TYPE
] = { .name
= "type", .type
= BLOBMSG_TYPE_STRING
},
196 [EVENT_DATA
] = { .name
= "data", .type
= BLOBMSG_TYPE_TABLE
},
206 static const struct blobmsg_policy validate_policy
[__VALIDATE_MAX
] = {
207 [VALIDATE_PACKAGE
] = { .name
= "package", .type
= BLOBMSG_TYPE_STRING
},
208 [VALIDATE_TYPE
] = { .name
= "type", .type
= BLOBMSG_TYPE_STRING
},
209 [VALIDATE_SERVICE
] = { .name
= "service", .type
= BLOBMSG_TYPE_STRING
},
213 service_handle_set(struct ubus_context
*ctx
, struct ubus_object
*obj
,
214 struct ubus_request_data
*req
, const char *method
,
215 struct blob_attr
*msg
)
217 struct blob_attr
*tb
[__SERVICE_SET_MAX
], *cur
;
218 struct service
*s
= NULL
;
220 bool add
= !strcmp(method
, "add");
223 blobmsg_parse(service_set_attrs
, __SERVICE_SET_MAX
, tb
, blob_data(msg
), blob_len(msg
));
224 cur
= tb
[SERVICE_ATTR_NAME
];
226 return UBUS_STATUS_INVALID_ARGUMENT
;
228 name
= blobmsg_data(cur
);
230 s
= avl_find_element(&services
, name
, s
, avl
);
232 DEBUG(2, "Update service %s\n", name
);
233 return service_update(s
, tb
, add
);
236 DEBUG(2, "Create service %s\n", name
);
237 s
= service_alloc(name
);
239 return UBUS_STATUS_UNKNOWN_ERROR
;
241 ret
= service_update(s
, tb
, add
);
245 avl_insert(&services
, &s
->avl
);
247 service_event("service.start", s
->name
, NULL
);
253 service_dump(struct service
*s
, int verbose
)
255 struct service_instance
*in
;
258 c
= blobmsg_open_table(&b
, s
->name
);
260 if (!avl_is_empty(&s
->instances
.avl
)) {
261 i
= blobmsg_open_table(&b
, "instances");
262 vlist_for_each_element(&s
->instances
, in
, node
)
263 instance_dump(&b
, in
, verbose
);
264 blobmsg_close_table(&b
, i
);
266 if (verbose
&& s
->trigger
)
267 blobmsg_add_blob(&b
, s
->trigger
);
268 if (verbose
&& !list_empty(&s
->validators
))
269 service_validate_dump(&b
, s
);
270 blobmsg_close_table(&b
, c
);
274 service_handle_list(struct ubus_context
*ctx
, struct ubus_object
*obj
,
275 struct ubus_request_data
*req
, const char *method
,
276 struct blob_attr
*msg
)
278 struct blob_attr
*tb
[__SERVICE_LIST_ATTR_MAX
];
282 blobmsg_parse(service_list_attrs
, __SERVICE_LIST_ATTR_MAX
, tb
, blob_data(msg
), blob_len(msg
));
284 if (tb
[SERVICE_LIST_ATTR_VERBOSE
] && blobmsg_get_bool(tb
[SERVICE_LIST_ATTR_VERBOSE
]))
287 blob_buf_init(&b
, 0);
288 avl_for_each_element(&services
, s
, avl
)
289 service_dump(s
, verbose
);
291 ubus_send_reply(ctx
, req
, b
.head
);
297 service_handle_delete(struct ubus_context
*ctx
, struct ubus_object
*obj
,
298 struct ubus_request_data
*req
, const char *method
,
299 struct blob_attr
*msg
)
301 struct blob_attr
*tb
[__SERVICE_DEL_ATTR_MAX
], *cur
;
303 struct service_instance
*in
;
305 blobmsg_parse(service_del_attrs
, __SERVICE_DEL_ATTR_MAX
, tb
, blob_data(msg
), blob_len(msg
));
307 cur
= tb
[SERVICE_DEL_ATTR_NAME
];
309 return UBUS_STATUS_NOT_FOUND
;
311 s
= avl_find_element(&services
, blobmsg_data(cur
), s
, avl
);
313 return UBUS_STATUS_NOT_FOUND
;
315 cur
= tb
[SERVICE_DEL_ATTR_INSTANCE
];
321 in
= vlist_find(&s
->instances
, blobmsg_data(cur
), in
, node
);
323 ERROR("instance %s not found\n", (char *) blobmsg_data(cur
));
324 return UBUS_STATUS_NOT_FOUND
;
327 vlist_delete(&s
->instances
, &in
->node
);
333 service_handle_update(struct ubus_context
*ctx
, struct ubus_object
*obj
,
334 struct ubus_request_data
*req
, const char *method
,
335 struct blob_attr
*msg
)
337 struct blob_attr
*tb
[__SERVICE_ATTR_MAX
], *cur
;
340 blobmsg_parse(service_attrs
, __SERVICE_ATTR_MAX
, tb
, blob_data(msg
), blob_len(msg
));
342 cur
= tb
[SERVICE_ATTR_NAME
];
344 return UBUS_STATUS_INVALID_ARGUMENT
;
346 s
= avl_find_element(&services
, blobmsg_data(cur
), s
, avl
);
348 return UBUS_STATUS_NOT_FOUND
;
350 if (!strcmp(method
, "update_start"))
351 vlist_update(&s
->instances
);
353 vlist_flush(&s
->instances
);
359 service_handle_event(struct ubus_context
*ctx
, struct ubus_object
*obj
,
360 struct ubus_request_data
*req
, const char *method
,
361 struct blob_attr
*msg
)
363 struct blob_attr
*tb
[__EVENT_MAX
];
366 return UBUS_STATUS_INVALID_ARGUMENT
;
368 blobmsg_parse(event_policy
, __EVENT_MAX
, tb
, blob_data(msg
), blob_len(msg
));
369 if (!tb
[EVENT_TYPE
] || !tb
[EVENT_DATA
])
370 return UBUS_STATUS_INVALID_ARGUMENT
;
372 trigger_event(blobmsg_get_string(tb
[EVENT_TYPE
]), tb
[EVENT_DATA
]);
378 service_handle_validate(struct ubus_context
*ctx
, struct ubus_object
*obj
,
379 struct ubus_request_data
*req
, const char *method
,
380 struct blob_attr
*msg
)
382 struct blob_attr
*tb
[__VALIDATE_MAX
];
383 char *p
= NULL
, *t
= NULL
;
386 return UBUS_STATUS_INVALID_ARGUMENT
;
388 blobmsg_parse(validate_policy
, __VALIDATE_MAX
, tb
, blob_data(msg
), blob_len(msg
));
389 if (tb
[VALIDATE_SERVICE
]) {
392 if (tb
[VALIDATE_PACKAGE
])
393 p
= blobmsg_get_string(tb
[VALIDATE_PACKAGE
]);
395 if (tb
[VALIDATE_TYPE
])
396 t
= blobmsg_get_string(tb
[VALIDATE_TYPE
]);
398 blob_buf_init(&b
, 0);
399 service_validate_dump_all(&b
, p
, t
);
400 ubus_send_reply(ctx
, req
, b
.head
);
405 static struct ubus_method main_object_methods
[] = {
406 UBUS_METHOD("set", service_handle_set
, service_set_attrs
),
407 UBUS_METHOD("add", service_handle_set
, service_set_attrs
),
408 UBUS_METHOD("list", service_handle_list
, service_attrs
),
409 UBUS_METHOD("delete", service_handle_delete
, service_del_attrs
),
410 UBUS_METHOD("update_start", service_handle_update
, service_attrs
),
411 UBUS_METHOD("update_complete", service_handle_update
, service_attrs
),
412 UBUS_METHOD("event", service_handle_event
, event_policy
),
413 UBUS_METHOD("validate", service_handle_validate
, validate_policy
),
416 static struct ubus_object_type main_object_type
=
417 UBUS_OBJECT_TYPE("service", main_object_methods
);
419 static struct ubus_object main_object
= {
421 .type
= &main_object_type
,
422 .methods
= main_object_methods
,
423 .n_methods
= ARRAY_SIZE(main_object_methods
),
427 service_start_early(char *name
, char *cmdline
)
429 void *instances
, *instance
, *command
, *respawn
;
432 blob_buf_init(&b
, 0);
433 blobmsg_add_string(&b
, "name", name
);
434 instances
= blobmsg_open_table(&b
, "instances");
435 instance
= blobmsg_open_table(&b
, "instance1");
436 command
= blobmsg_open_array(&b
, "command");
437 t
= strtok(cmdline
, " ");
439 blobmsg_add_string(&b
, NULL
, t
);
440 t
= strtok(NULL
, " ");
442 blobmsg_close_array(&b
, command
);
443 respawn
= blobmsg_open_array(&b
, "respawn");
444 blobmsg_add_string(&b
, NULL
, "3600");
445 blobmsg_add_string(&b
, NULL
, "1");
446 blobmsg_add_string(&b
, NULL
, "0");
447 blobmsg_close_array(&b
, respawn
);
448 blobmsg_close_table(&b
, instance
);
449 blobmsg_close_table(&b
, instances
);
451 return service_handle_set(NULL
, NULL
, NULL
, "add", b
.head
);
454 void service_event(const char *type
, const char *service
, const char *instance
)
456 blob_buf_init(&b
, 0);
457 blobmsg_add_string(&b
, "service", service
);
459 blobmsg_add_string(&b
, "instance", instance
);
460 ubus_notify(ctx
, &main_object
, type
, b
.head
, -1);
463 void ubus_init_service(struct ubus_context
*_ctx
)
466 ubus_add_object(ctx
, &main_object
);
472 avl_init(&services
, avl_strcmp
, false, NULL
);
473 service_validate_init();