2 * Copyright (C) 2016, 2017 "IoT.bzh"
3 * Author José Bollo <jose.bollo@iot.bzh>
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
24 #include <json-c/json.h>
26 #include <afb/afb-binding-v1.h>
27 #include <afb/afb-binding-v2.h>
31 #include "afb-common.h"
34 #include "afb-apiset.h"
39 extern struct afb_apiset *main_apiset;
41 /**********************************************
43 **********************************************/
44 static void vverbose_cb(void *closure, int level, const char *file, int line, const char *function, const char *fmt, va_list args)
47 struct afb_ditf *ditf = closure;
49 if (!fmt || vasprintf(&p, fmt, args) < 0)
50 vverbose(level, file, line, function, fmt, args);
52 verbose(level, file, line, function, "[API %s] %s", ditf->api, p);
57 static void old_vverbose_cb(void *closure, int level, const char *file, int line, const char *fmt, va_list args)
59 vverbose_cb(closure, level, file, line, NULL, fmt, args);
62 static struct afb_event event_make_cb(void *closure, const char *name)
66 struct afb_ditf *ditf = closure;
68 /* check daemon state */
69 if (ditf->state == Daemon_Pre_Init) {
70 ERROR("[API %s] Bad call to 'afb_daemon_event_make(%s)', must not be in PreInit", ditf->api, name);
72 return (struct afb_event){ .itf = NULL, .closure = NULL };
75 /* makes the event name */
76 plen = strlen(ditf->api);
78 event = alloca(nlen + plen + 2);
79 memcpy(event, ditf->api, plen);
81 memcpy(event + plen + 1, name, nlen + 1);
83 /* create the event */
84 return afb_evt_create_event(event);
87 static int event_broadcast_cb(void *closure, const char *name, struct json_object *object)
91 struct afb_ditf *ditf = closure;
93 /* check daemon state */
94 if (ditf->state == Daemon_Pre_Init) {
95 ERROR("[API %s] Bad call to 'afb_daemon_event_broadcast(%s, %s)', must not be in PreInit", ditf->api, name, json_object_to_json_string(object));
100 /* makes the event name */
101 plen = strlen(ditf->api);
103 event = alloca(nlen + plen + 2);
104 memcpy(event, ditf->api, plen);
106 memcpy(event + plen + 1, name, nlen + 1);
108 /* broadcast the event */
109 return afb_evt_broadcast(event, object);
112 static int rootdir_open_locale_cb(void *closure, const char *filename, int flags, const char *locale)
114 return afb_common_rootdir_open_locale(filename, flags, locale);
117 static int queue_job_cb(void *closure, void (*callback)(int signum, void *arg), void *argument, void *group, int timeout)
119 return jobs_queue(group, timeout, callback, argument);
122 static struct afb_req unstore_req_cb(void *closure, struct afb_stored_req *sreq)
124 return afb_xreq_unstore(sreq);
127 static int require_api_cb(void *closure, const char *name, int initialized)
129 struct afb_ditf *ditf = closure;
130 if (ditf->state != Daemon_Init) {
131 ERROR("[API %s] Bad call to 'afb_daemon_require(%s, %d)', must be in Init", ditf->api, name, initialized);
135 return -!(initialized ? afb_apiset_lookup_started : afb_apiset_lookup)(main_apiset, name, 1);
138 static int rename_api_cb(void *closure, const char *name)
140 struct afb_ditf *ditf = closure;
141 if (ditf->state != Daemon_Pre_Init) {
142 ERROR("[API %s] Bad call to 'afb_daemon_rename(%s)', must be in PreInit", ditf->api, name);
146 if (!afb_api_is_valid_name(name)) {
147 ERROR("[API %s] Can't rename to %s: bad API name", ditf->api, name);
151 NOTICE("[API %s] renamed to [API %s]", ditf->api, name);
152 afb_ditf_rename(ditf, name);
156 /**********************************************
158 **********************************************/
159 static void hooked_vverbose_cb(void *closure, int level, const char *file, int line, const char *function, const char *fmt, va_list args)
161 struct afb_ditf *ditf = closure;
164 vverbose_cb(closure, level, file, line, function, fmt, args);
165 afb_hook_ditf_vverbose(ditf, level, file, line, function, fmt, ap);
169 static void hooked_old_vverbose_cb(void *closure, int level, const char *file, int line, const char *fmt, va_list args)
171 hooked_vverbose_cb(closure, level, file, line, NULL, fmt, args);
174 static struct afb_event hooked_event_make_cb(void *closure, const char *name)
176 struct afb_ditf *ditf = closure;
177 struct afb_event r = event_make_cb(closure, name);
178 return afb_hook_ditf_event_make(ditf, name, r);
181 static int hooked_event_broadcast_cb(void *closure, const char *name, struct json_object *object)
184 struct afb_ditf *ditf = closure;
185 json_object_get(object);
186 afb_hook_ditf_event_broadcast_before(ditf, name, json_object_get(object));
187 r = event_broadcast_cb(closure, name, object);
188 afb_hook_ditf_event_broadcast_after(ditf, name, object, r);
189 json_object_put(object);
193 static struct sd_event *hooked_get_event_loop(void *closure)
195 struct afb_ditf *ditf = closure;
196 struct sd_event *r = afb_common_get_event_loop();
197 return afb_hook_ditf_get_event_loop(ditf, r);
200 static struct sd_bus *hooked_get_user_bus(void *closure)
202 struct afb_ditf *ditf = closure;
203 struct sd_bus *r = afb_common_get_user_bus();
204 return afb_hook_ditf_get_user_bus(ditf, r);
207 static struct sd_bus *hooked_get_system_bus(void *closure)
209 struct afb_ditf *ditf = closure;
210 struct sd_bus *r = afb_common_get_system_bus();
211 return afb_hook_ditf_get_system_bus(ditf, r);
214 static int hooked_rootdir_get_fd(void *closure)
216 struct afb_ditf *ditf = closure;
217 int r = afb_common_rootdir_get_fd();
218 return afb_hook_ditf_rootdir_get_fd(ditf, r);
221 static int hooked_rootdir_open_locale_cb(void *closure, const char *filename, int flags, const char *locale)
223 struct afb_ditf *ditf = closure;
224 int r = rootdir_open_locale_cb(closure, filename, flags, locale);
225 return afb_hook_ditf_rootdir_open_locale(ditf, filename, flags, locale, r);
228 static int hooked_queue_job_cb(void *closure, void (*callback)(int signum, void *arg), void *argument, void *group, int timeout)
230 struct afb_ditf *ditf = closure;
231 int r = queue_job_cb(closure, callback, argument, group, timeout);
232 return afb_hook_ditf_queue_job(ditf, callback, argument, group, timeout, r);
235 static struct afb_req hooked_unstore_req_cb(void *closure, struct afb_stored_req *sreq)
237 struct afb_ditf *ditf = closure;
238 afb_hook_ditf_unstore_req(ditf, sreq);
239 return unstore_req_cb(closure, sreq);
242 static int hooked_require_api_cb(void *closure, const char *name, int initialized)
245 struct afb_ditf *ditf = closure;
246 afb_hook_ditf_require_api(ditf, name, initialized);
247 result = require_api_cb(closure, name, initialized);
248 return afb_hook_ditf_require_api_result(ditf, name, initialized, result);
251 static int hooked_rename_api_cb(void *closure, const char *name)
253 struct afb_ditf *ditf = closure;
254 const char *oldname = ditf->api;
255 int result = rename_api_cb(closure, name);
256 return afb_hook_ditf_rename_api(ditf, oldname, name, result);
259 /**********************************************
261 **********************************************/
262 static const struct afb_daemon_itf daemon_itf = {
263 .vverbose_v1 = old_vverbose_cb,
264 .vverbose_v2 = vverbose_cb,
265 .event_make = event_make_cb,
266 .event_broadcast = event_broadcast_cb,
267 .get_event_loop = afb_common_get_event_loop,
268 .get_user_bus = afb_common_get_user_bus,
269 .get_system_bus = afb_common_get_system_bus,
270 .rootdir_get_fd = afb_common_rootdir_get_fd,
271 .rootdir_open_locale = rootdir_open_locale_cb,
272 .queue_job = queue_job_cb,
273 .unstore_req = unstore_req_cb,
274 .require_api = require_api_cb,
275 .rename_api = rename_api_cb
278 static const struct afb_daemon_itf hooked_daemon_itf = {
279 .vverbose_v1 = hooked_old_vverbose_cb,
280 .vverbose_v2 = hooked_vverbose_cb,
281 .event_make = hooked_event_make_cb,
282 .event_broadcast = hooked_event_broadcast_cb,
283 .get_event_loop = hooked_get_event_loop,
284 .get_user_bus = hooked_get_user_bus,
285 .get_system_bus = hooked_get_system_bus,
286 .rootdir_get_fd = hooked_rootdir_get_fd,
287 .rootdir_open_locale = hooked_rootdir_open_locale_cb,
288 .queue_job = hooked_queue_job_cb,
289 .unstore_req = hooked_unstore_req_cb,
290 .require_api = hooked_require_api_cb,
291 .rename_api = hooked_rename_api_cb
294 void afb_ditf_init_v2(struct afb_ditf *ditf, const char *api, struct afb_binding_data_v2 *data)
297 ditf->state = Daemon_Pre_Init;
299 data->daemon.closure = ditf;
300 afb_ditf_rename(ditf, api);
303 void afb_ditf_init_v1(struct afb_ditf *ditf, const char *api, struct afb_binding_interface_v1 *itf)
306 ditf->state = Daemon_Pre_Init;
308 itf->verbosity = verbosity;
309 itf->mode = AFB_MODE_LOCAL;
310 itf->daemon.closure = ditf;
311 afb_ditf_rename(ditf, api);
314 void afb_ditf_rename(struct afb_ditf *ditf, const char *api)
317 afb_ditf_update_hook(ditf);
320 void afb_ditf_update_hook(struct afb_ditf *ditf)
322 int hooked = !!afb_hook_flags_ditf(ditf->api);
323 switch (ditf->version) {
325 ditf->v1->daemon.itf = hooked ? &hooked_daemon_itf : &daemon_itf;
329 ditf->v2->daemon.itf = hooked ? &hooked_daemon_itf : &daemon_itf;