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/avl-cmp.h>
20 struct avl_tree services
;
21 static struct blob_buf b
;
24 service_instance_add(struct service
*s
, struct blob_attr
*attr
)
26 struct service_instance
*in
;
28 if (blobmsg_type(attr
) != BLOBMSG_TYPE_TABLE
)
31 in
= calloc(1, sizeof(*in
));
35 instance_init(in
, s
, attr
);
36 vlist_add(&s
->instances
, &in
->node
, (void *) in
->name
);
40 service_instance_update(struct vlist_tree
*tree
, struct vlist_node
*node_new
,
41 struct vlist_node
*node_old
)
43 struct service_instance
*in_o
= NULL
, *in_n
= NULL
;
46 in_o
= container_of(node_old
, struct service_instance
, node
);
49 in_n
= container_of(node_new
, struct service_instance
, node
);
52 DEBUG(1, "Update instance %s::%s\n", in_o
->srv
->name
, in_o
->name
);
53 instance_update(in_o
, in_n
);
56 DEBUG(1, "Free instance %s::%s\n", in_o
->srv
->name
, in_o
->name
);
57 instance_stop(in_o
, false);
60 DEBUG(1, "Create instance %s::%s\n", in_n
->srv
->name
, in_n
->name
);
65 static struct service
*
66 service_alloc(const char *name
)
71 s
= calloc_a(sizeof(*s
), &new_name
, strlen(name
) + 1);
72 strcpy(new_name
, name
);
74 vlist_init(&s
->instances
, avl_strcmp
, service_instance_update
);
75 s
->instances
.keep_old
= true;
85 SERVICE_SET_INSTANCES
,
90 static const struct blobmsg_policy service_set_attrs
[__SERVICE_SET_MAX
] = {
91 [SERVICE_SET_NAME
] = { "name", BLOBMSG_TYPE_STRING
},
92 [SERVICE_SET_SCRIPT
] = { "script", BLOBMSG_TYPE_STRING
},
93 [SERVICE_SET_INSTANCES
] = { "instances", BLOBMSG_TYPE_TABLE
},
94 [SERVICE_SET_TRIGGER
] = { "triggers", BLOBMSG_TYPE_ARRAY
},
98 service_update(struct service
*s
, struct blob_attr
*config
, struct blob_attr
**tb
, bool add
)
100 struct blob_attr
*cur
;
103 s
->trigger
= tb
[SERVICE_SET_TRIGGER
];
105 if (tb
[SERVICE_SET_INSTANCES
]) {
107 vlist_update(&s
->instances
);
108 blobmsg_for_each_attr(cur
, tb
[SERVICE_SET_INSTANCES
], rem
) {
109 service_instance_add(s
, cur
);
112 vlist_flush(&s
->instances
);
119 service_delete(struct service
*s
)
121 vlist_flush_all(&s
->instances
);
122 avl_delete(&services
, &s
->avl
);
132 static const struct blobmsg_policy service_attrs
[__SERVICE_ATTR_MAX
] = {
133 [SERVICE_ATTR_NAME
] = { "name", BLOBMSG_TYPE_STRING
},
137 SERVICE_DEL_ATTR_NAME
,
138 SERVICE_DEL_ATTR_INSTANCE
,
139 __SERVICE_DEL_ATTR_MAX
,
142 static const struct blobmsg_policy service_del_attrs
[__SERVICE_DEL_ATTR_MAX
] = {
143 [SERVICE_DEL_ATTR_NAME
] = { "name", BLOBMSG_TYPE_STRING
},
144 [SERVICE_DEL_ATTR_INSTANCE
] = { "instance", BLOBMSG_TYPE_STRING
},
148 SERVICE_LIST_ATTR_VERBOSE
,
149 __SERVICE_LIST_ATTR_MAX
,
152 static const struct blobmsg_policy service_list_attrs
[__SERVICE_LIST_ATTR_MAX
] = {
153 [SERVICE_LIST_ATTR_VERBOSE
] = { "verbose", BLOBMSG_TYPE_INT32
},
162 static const struct blobmsg_policy event_policy
[__EVENT_MAX
] = {
163 [EVENT_TYPE
] = { .name
= "type", .type
= BLOBMSG_TYPE_STRING
},
164 [EVENT_DATA
] = { .name
= "data", .type
= BLOBMSG_TYPE_TABLE
},
168 service_handle_set(struct ubus_context
*ctx
, struct ubus_object
*obj
,
169 struct ubus_request_data
*req
, const char *method
,
170 struct blob_attr
*msg
)
172 struct blob_attr
*tb
[__SERVICE_SET_MAX
], *cur
;
173 struct service
*s
= NULL
;
175 int ret
= UBUS_STATUS_INVALID_ARGUMENT
;
176 bool add
= !strcmp(method
, "add");
178 blobmsg_parse(service_set_attrs
, __SERVICE_SET_MAX
, tb
, blob_data(msg
), blob_len(msg
));
179 cur
= tb
[SERVICE_ATTR_NAME
];
183 name
= blobmsg_data(cur
);
185 s
= avl_find_element(&services
, name
, s
, avl
);
187 DEBUG(1, "Update service %s\n", name
);
188 return service_update(s
, msg
, tb
, add
);
191 DEBUG(1, "Create service %s\n", name
);
192 s
= service_alloc(name
);
194 return UBUS_STATUS_UNKNOWN_ERROR
;
196 ret
= service_update(s
, msg
, tb
, add
);
200 avl_insert(&services
, &s
->avl
);
210 service_dump(struct service
*s
, int verbose
)
212 struct service_instance
*in
;
215 c
= blobmsg_open_table(&b
, s
->name
);
216 i
= blobmsg_open_table(&b
, "instances");
217 if (verbose
&& s
->trigger
)
218 blobmsg_add_blob(&b
, s
->trigger
);
219 vlist_for_each_element(&s
->instances
, in
, node
)
220 instance_dump(&b
, in
, verbose
);
221 blobmsg_close_table(&b
, i
);
222 blobmsg_close_table(&b
, c
);
226 service_handle_list(struct ubus_context
*ctx
, struct ubus_object
*obj
,
227 struct ubus_request_data
*req
, const char *method
,
228 struct blob_attr
*msg
)
230 struct blob_attr
*tb
[__SERVICE_LIST_ATTR_MAX
];
234 blobmsg_parse(service_list_attrs
, __SERVICE_LIST_ATTR_MAX
, tb
, blob_data(msg
), blob_len(msg
));
236 if (tb
[SERVICE_LIST_ATTR_VERBOSE
] && blobmsg_get_u32(tb
[SERVICE_LIST_ATTR_VERBOSE
]))
239 blob_buf_init(&b
, 0);
240 avl_for_each_element(&services
, s
, avl
)
241 service_dump(s
, verbose
);
243 ubus_send_reply(ctx
, req
, b
.head
);
249 service_handle_delete(struct ubus_context
*ctx
, struct ubus_object
*obj
,
250 struct ubus_request_data
*req
, const char *method
,
251 struct blob_attr
*msg
)
253 struct blob_attr
*tb
[__SERVICE_DEL_ATTR_MAX
], *cur
;
254 struct service
*s
, *tmp
;
255 struct service_instance
*in
;
257 blobmsg_parse(service_del_attrs
, __SERVICE_DEL_ATTR_MAX
, tb
, blob_data(msg
), blob_len(msg
));
259 cur
= tb
[SERVICE_DEL_ATTR_NAME
];
261 avl_for_each_element_safe(&services
, s
, avl
, tmp
)
266 s
= avl_find_element(&services
, blobmsg_data(cur
), s
, avl
);
268 return UBUS_STATUS_NOT_FOUND
;
270 cur
= tb
[SERVICE_DEL_ATTR_INSTANCE
];
276 in
= vlist_find(&s
->instances
, blobmsg_data(cur
), in
, node
);
278 ERROR("instance %s not found\n", (char *) blobmsg_data(cur
));
279 return UBUS_STATUS_NOT_FOUND
;
282 vlist_delete(&s
->instances
, &in
->node
);
288 service_handle_update(struct ubus_context
*ctx
, struct ubus_object
*obj
,
289 struct ubus_request_data
*req
, const char *method
,
290 struct blob_attr
*msg
)
292 struct blob_attr
*tb
[__SERVICE_ATTR_MAX
], *cur
;
295 blobmsg_parse(service_attrs
, __SERVICE_ATTR_MAX
, tb
, blob_data(msg
), blob_len(msg
));
297 cur
= tb
[SERVICE_ATTR_NAME
];
299 return UBUS_STATUS_INVALID_ARGUMENT
;
301 s
= avl_find_element(&services
, blobmsg_data(cur
), s
, avl
);
303 return UBUS_STATUS_NOT_FOUND
;
305 if (!strcmp(method
, "update_start"))
306 vlist_update(&s
->instances
);
308 vlist_flush(&s
->instances
);
314 service_handle_event(struct ubus_context
*ctx
, struct ubus_object
*obj
,
315 struct ubus_request_data
*req
, const char *method
,
316 struct blob_attr
*msg
)
318 struct blob_attr
*tb
[__EVENT_MAX
];
321 return UBUS_STATUS_INVALID_ARGUMENT
;
323 blobmsg_parse(event_policy
, __EVENT_MAX
, tb
, blob_data(msg
), blob_len(msg
));
324 if (!tb
[EVENT_TYPE
] || !tb
[EVENT_DATA
])
325 return UBUS_STATUS_INVALID_ARGUMENT
;
327 trigger_event(blobmsg_get_string(tb
[EVENT_TYPE
]), tb
[EVENT_DATA
]);
337 static const struct blobmsg_policy trigger_policy
[__TRIGGER_MAX
] = {
338 [TRIGGER_ATTR
] = { .name
= "triggers", .type
= BLOBMSG_TYPE_ARRAY
},
341 static int service_handle_trigger(struct ubus_context
*ctx
, struct ubus_object
*obj
,
342 struct ubus_request_data
*req
, const char *method
,
343 struct blob_attr
*msg
)
345 struct blob_attr
*tb
[__TRIGGER_MAX
];
348 return UBUS_STATUS_INVALID_ARGUMENT
;
350 blobmsg_parse(trigger_policy
, __TRIGGER_MAX
, tb
, blob_data(msg
), blob_len(msg
));
351 if (!tb
[TRIGGER_ATTR
])
352 return UBUS_STATUS_INVALID_ARGUMENT
;
354 trigger_add(tb
[TRIGGER_ATTR
], NULL
);
359 static struct ubus_method main_object_methods
[] = {
360 UBUS_METHOD("set", service_handle_set
, service_set_attrs
),
361 UBUS_METHOD("add", service_handle_set
, service_set_attrs
),
362 UBUS_METHOD("list", service_handle_list
, service_attrs
),
363 UBUS_METHOD("delete", service_handle_delete
, service_del_attrs
),
364 UBUS_METHOD("update_start", service_handle_update
, service_attrs
),
365 UBUS_METHOD("update_complete", service_handle_update
, service_attrs
),
366 UBUS_METHOD("event", service_handle_event
, event_policy
),
367 UBUS_METHOD("trigger", service_handle_trigger
, trigger_policy
),
370 static struct ubus_object_type main_object_type
=
371 UBUS_OBJECT_TYPE("service", main_object_methods
);
373 static struct ubus_object main_object
= {
375 .type
= &main_object_type
,
376 .methods
= main_object_methods
,
377 .n_methods
= ARRAY_SIZE(main_object_methods
),
380 void ubus_init_service(struct ubus_context
*ctx
)
382 avl_init(&services
, avl_strcmp
, false, NULL
);
383 ubus_add_object(ctx
, &main_object
);