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>
21 struct avl_tree services
;
22 static struct blob_buf b
;
25 service_instance_add(struct service
*s
, struct blob_attr
*attr
)
27 struct service_instance
*in
;
29 if (blobmsg_type(attr
) != BLOBMSG_TYPE_TABLE
)
32 in
= calloc(1, sizeof(*in
));
36 instance_init(in
, s
, attr
);
37 vlist_add(&s
->instances
, &in
->node
, (void *) in
->name
);
41 service_instance_update(struct vlist_tree
*tree
, struct vlist_node
*node_new
,
42 struct vlist_node
*node_old
)
44 struct service_instance
*in_o
= NULL
, *in_n
= NULL
;
47 in_o
= container_of(node_old
, struct service_instance
, node
);
50 in_n
= container_of(node_new
, struct service_instance
, node
);
53 DEBUG(1, "Update instance %s::%s\n", in_o
->srv
->name
, in_o
->name
);
54 instance_update(in_o
, in_n
);
57 DEBUG(1, "Free instance %s::%s\n", in_o
->srv
->name
, in_o
->name
);
58 instance_stop(in_o
, false);
61 DEBUG(1, "Create instance %s::%s\n", in_n
->srv
->name
, in_n
->name
);
66 static struct service
*
67 service_alloc(const char *name
)
72 s
= calloc_a(sizeof(*s
), &new_name
, strlen(name
) + 1);
73 strcpy(new_name
, name
);
75 vlist_init(&s
->instances
, avl_strcmp
, service_instance_update
);
76 s
->instances
.keep_old
= true;
86 SERVICE_SET_INSTANCES
,
91 static const struct blobmsg_policy service_set_attrs
[__SERVICE_SET_MAX
] = {
92 [SERVICE_SET_NAME
] = { "name", BLOBMSG_TYPE_STRING
},
93 [SERVICE_SET_SCRIPT
] = { "script", BLOBMSG_TYPE_STRING
},
94 [SERVICE_SET_INSTANCES
] = { "instances", BLOBMSG_TYPE_TABLE
},
95 [SERVICE_SET_TRIGGER
] = { "triggers", BLOBMSG_TYPE_ARRAY
},
99 service_update(struct service
*s
, struct blob_attr
*config
, struct blob_attr
**tb
, bool add
)
101 struct blob_attr
*cur
;
107 if (tb
[SERVICE_SET_TRIGGER
] && blobmsg_data_len(tb
[SERVICE_SET_TRIGGER
])) {
108 s
->trigger
= tb
[SERVICE_SET_TRIGGER
];
109 trigger_add(s
->trigger
, s
);
112 if (tb
[SERVICE_SET_INSTANCES
]) {
114 vlist_update(&s
->instances
);
115 blobmsg_for_each_attr(cur
, tb
[SERVICE_SET_INSTANCES
], rem
) {
116 service_instance_add(s
, cur
);
119 vlist_flush(&s
->instances
);
126 service_delete(struct service
*s
)
128 vlist_flush_all(&s
->instances
);
129 avl_delete(&services
, &s
->avl
);
140 static const struct blobmsg_policy service_attrs
[__SERVICE_ATTR_MAX
] = {
141 [SERVICE_ATTR_NAME
] = { "name", BLOBMSG_TYPE_STRING
},
145 SERVICE_DEL_ATTR_NAME
,
146 SERVICE_DEL_ATTR_INSTANCE
,
147 __SERVICE_DEL_ATTR_MAX
,
150 static const struct blobmsg_policy service_del_attrs
[__SERVICE_DEL_ATTR_MAX
] = {
151 [SERVICE_DEL_ATTR_NAME
] = { "name", BLOBMSG_TYPE_STRING
},
152 [SERVICE_DEL_ATTR_INSTANCE
] = { "instance", BLOBMSG_TYPE_STRING
},
156 SERVICE_LIST_ATTR_VERBOSE
,
157 __SERVICE_LIST_ATTR_MAX
,
160 static const struct blobmsg_policy service_list_attrs
[__SERVICE_LIST_ATTR_MAX
] = {
161 [SERVICE_LIST_ATTR_VERBOSE
] = { "verbose", BLOBMSG_TYPE_BOOL
},
170 static const struct blobmsg_policy event_policy
[__EVENT_MAX
] = {
171 [EVENT_TYPE
] = { .name
= "type", .type
= BLOBMSG_TYPE_STRING
},
172 [EVENT_DATA
] = { .name
= "data", .type
= BLOBMSG_TYPE_TABLE
},
176 service_handle_set(struct ubus_context
*ctx
, struct ubus_object
*obj
,
177 struct ubus_request_data
*req
, const char *method
,
178 struct blob_attr
*msg
)
180 struct blob_attr
*tb
[__SERVICE_SET_MAX
], *cur
;
181 struct service
*s
= NULL
;
183 int ret
= UBUS_STATUS_INVALID_ARGUMENT
;
184 bool add
= !strcmp(method
, "add");
186 blobmsg_parse(service_set_attrs
, __SERVICE_SET_MAX
, tb
, blob_data(msg
), blob_len(msg
));
187 cur
= tb
[SERVICE_ATTR_NAME
];
191 name
= blobmsg_data(cur
);
193 s
= avl_find_element(&services
, name
, s
, avl
);
195 DEBUG(1, "Update service %s\n", name
);
196 return service_update(s
, msg
, tb
, add
);
199 DEBUG(1, "Create service %s\n", name
);
200 s
= service_alloc(name
);
202 return UBUS_STATUS_UNKNOWN_ERROR
;
204 ret
= service_update(s
, msg
, tb
, add
);
208 avl_insert(&services
, &s
->avl
);
218 service_dump(struct service
*s
, int verbose
)
220 struct service_instance
*in
;
223 if (avl_is_empty(&s
->instances
.avl
))
226 c
= blobmsg_open_table(&b
, s
->name
);
227 if (verbose
&& s
->trigger
)
228 blobmsg_add_blob(&b
, s
->trigger
);
229 i
= blobmsg_open_table(&b
, "instances");
230 vlist_for_each_element(&s
->instances
, in
, node
)
231 instance_dump(&b
, in
, verbose
);
232 blobmsg_close_table(&b
, i
);
233 blobmsg_close_table(&b
, c
);
237 service_handle_list(struct ubus_context
*ctx
, struct ubus_object
*obj
,
238 struct ubus_request_data
*req
, const char *method
,
239 struct blob_attr
*msg
)
241 struct blob_attr
*tb
[__SERVICE_LIST_ATTR_MAX
];
245 blobmsg_parse(service_list_attrs
, __SERVICE_LIST_ATTR_MAX
, tb
, blob_data(msg
), blob_len(msg
));
247 if (tb
[SERVICE_LIST_ATTR_VERBOSE
] && blobmsg_get_bool(tb
[SERVICE_LIST_ATTR_VERBOSE
]))
250 blob_buf_init(&b
, 0);
251 avl_for_each_element(&services
, s
, avl
)
252 service_dump(s
, verbose
);
254 ubus_send_reply(ctx
, req
, b
.head
);
260 service_handle_delete(struct ubus_context
*ctx
, struct ubus_object
*obj
,
261 struct ubus_request_data
*req
, const char *method
,
262 struct blob_attr
*msg
)
264 struct blob_attr
*tb
[__SERVICE_DEL_ATTR_MAX
], *cur
;
266 struct service_instance
*in
;
268 blobmsg_parse(service_del_attrs
, __SERVICE_DEL_ATTR_MAX
, tb
, blob_data(msg
), blob_len(msg
));
270 cur
= tb
[SERVICE_DEL_ATTR_NAME
];
272 return UBUS_STATUS_NOT_FOUND
;
274 s
= avl_find_element(&services
, blobmsg_data(cur
), s
, avl
);
276 return UBUS_STATUS_NOT_FOUND
;
278 cur
= tb
[SERVICE_DEL_ATTR_INSTANCE
];
284 in
= vlist_find(&s
->instances
, blobmsg_data(cur
), in
, node
);
286 ERROR("instance %s not found\n", (char *) blobmsg_data(cur
));
287 return UBUS_STATUS_NOT_FOUND
;
290 vlist_delete(&s
->instances
, &in
->node
);
296 service_handle_update(struct ubus_context
*ctx
, struct ubus_object
*obj
,
297 struct ubus_request_data
*req
, const char *method
,
298 struct blob_attr
*msg
)
300 struct blob_attr
*tb
[__SERVICE_ATTR_MAX
], *cur
;
303 blobmsg_parse(service_attrs
, __SERVICE_ATTR_MAX
, tb
, blob_data(msg
), blob_len(msg
));
305 cur
= tb
[SERVICE_ATTR_NAME
];
307 return UBUS_STATUS_INVALID_ARGUMENT
;
309 s
= avl_find_element(&services
, blobmsg_data(cur
), s
, avl
);
311 return UBUS_STATUS_NOT_FOUND
;
313 if (!strcmp(method
, "update_start"))
314 vlist_update(&s
->instances
);
316 vlist_flush(&s
->instances
);
322 service_handle_event(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
[__EVENT_MAX
];
329 return UBUS_STATUS_INVALID_ARGUMENT
;
331 blobmsg_parse(event_policy
, __EVENT_MAX
, tb
, blob_data(msg
), blob_len(msg
));
332 if (!tb
[EVENT_TYPE
] || !tb
[EVENT_DATA
])
333 return UBUS_STATUS_INVALID_ARGUMENT
;
335 trigger_event(blobmsg_get_string(tb
[EVENT_TYPE
]), tb
[EVENT_DATA
]);
340 static struct ubus_method main_object_methods
[] = {
341 UBUS_METHOD("set", service_handle_set
, service_set_attrs
),
342 UBUS_METHOD("add", service_handle_set
, service_set_attrs
),
343 UBUS_METHOD("list", service_handle_list
, service_attrs
),
344 UBUS_METHOD("delete", service_handle_delete
, service_del_attrs
),
345 UBUS_METHOD("update_start", service_handle_update
, service_attrs
),
346 UBUS_METHOD("update_complete", service_handle_update
, service_attrs
),
347 UBUS_METHOD("event", service_handle_event
, event_policy
),
350 static struct ubus_object_type main_object_type
=
351 UBUS_OBJECT_TYPE("service", main_object_methods
);
353 static struct ubus_object main_object
= {
355 .type
= &main_object_type
,
356 .methods
= main_object_methods
,
357 .n_methods
= ARRAY_SIZE(main_object_methods
),
360 void ubus_init_service(struct ubus_context
*ctx
)
362 avl_init(&services
, avl_strcmp
, false, NULL
);
363 ubus_add_object(ctx
, &main_object
);