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"
36 /**********************************************
38 **********************************************/
39 static void vverbose_cb(void *closure, int level, const char *file, int line, const char *function, const char *fmt, va_list args)
42 struct afb_ditf *ditf = closure;
44 if (vasprintf(&p, fmt, args) < 0)
45 vverbose(level, file, line, function, fmt, args);
47 verbose(level, file, line, function, "[API %s] %s", ditf->api, p);
52 static void old_vverbose_cb(void *closure, int level, const char *file, int line, const char *fmt, va_list args)
54 vverbose_cb(closure, level, file, line, "?", fmt, args);
57 static struct afb_event event_make_cb(void *closure, const char *name)
61 struct afb_ditf *ditf = closure;
63 /* makes the event name */
64 plen = strlen(ditf->api);
66 event = alloca(nlen + plen + 2);
67 memcpy(event, ditf->api, plen);
69 memcpy(event + plen + 1, name, nlen + 1);
71 /* create the event */
72 return afb_evt_create_event(event);
75 static int event_broadcast_cb(void *closure, const char *name, struct json_object *object)
79 struct afb_ditf *ditf = closure;
81 /* makes the event name */
82 plen = strlen(ditf->api);
84 event = alloca(nlen + plen + 2);
85 memcpy(event, ditf->api, plen);
87 memcpy(event + plen + 1, name, nlen + 1);
89 /* broadcast the event */
90 return afb_evt_broadcast(event, object);
93 static int rootdir_open_locale_cb(void *closure, const char *filename, int flags, const char *locale)
95 return afb_common_rootdir_open_locale(filename, flags, locale);
98 static int queue_job_cb(void *closure, void (*callback)(int signum, void *arg), void *argument, void *group, int timeout)
100 return jobs_queue(group, timeout, callback, argument);
103 /**********************************************
105 **********************************************/
106 static void hooked_vverbose_cb(void *closure, int level, const char *file, int line, const char *function, const char *fmt, va_list args)
108 struct afb_ditf *ditf = closure;
111 vverbose_cb(closure, level, file, line, function, fmt, args);
112 afb_hook_ditf_vverbose(ditf, level, file, line, function, fmt, ap);
116 static void hooked_old_vverbose_cb(void *closure, int level, const char *file, int line, const char *fmt, va_list args)
118 hooked_vverbose_cb(closure, level, file, line, "?", fmt, args);
121 static struct afb_event hooked_event_make_cb(void *closure, const char *name)
123 struct afb_ditf *ditf = closure;
124 struct afb_event r = event_make_cb(closure, name);
125 return afb_hook_ditf_event_make(ditf, name, r);
128 static int hooked_event_broadcast_cb(void *closure, const char *name, struct json_object *object)
131 struct afb_ditf *ditf = closure;
132 json_object_get(object);
133 afb_hook_ditf_event_broadcast_before(ditf, name, json_object_get(object));
134 r = event_broadcast_cb(closure, name, object);
135 afb_hook_ditf_event_broadcast_after(ditf, name, object, r);
136 json_object_put(object);
140 static struct sd_event *hooked_get_event_loop(void *closure)
142 struct afb_ditf *ditf = closure;
143 struct sd_event *r = afb_common_get_event_loop();
144 return afb_hook_ditf_get_event_loop(ditf, r);
147 static struct sd_bus *hooked_get_user_bus(void *closure)
149 struct afb_ditf *ditf = closure;
150 struct sd_bus *r = afb_common_get_user_bus();
151 return afb_hook_ditf_get_user_bus(ditf, r);
154 static struct sd_bus *hooked_get_system_bus(void *closure)
156 struct afb_ditf *ditf = closure;
157 struct sd_bus *r = afb_common_get_system_bus();
158 return afb_hook_ditf_get_system_bus(ditf, r);
161 static int hooked_rootdir_get_fd(void *closure)
163 struct afb_ditf *ditf = closure;
164 int r = afb_common_rootdir_get_fd();
165 return afb_hook_ditf_rootdir_get_fd(ditf, r);
168 static int hooked_rootdir_open_locale_cb(void *closure, const char *filename, int flags, const char *locale)
170 struct afb_ditf *ditf = closure;
171 int r = rootdir_open_locale_cb(closure, filename, flags, locale);
172 return afb_hook_ditf_rootdir_open_locale(ditf, filename, flags, locale, r);
175 static int hooked_queue_job_cb(void *closure, void (*callback)(int signum, void *arg), void *argument, void *group, int timeout)
177 struct afb_ditf *ditf = closure;
178 int r = queue_job_cb(closure, callback, argument, group, timeout);
179 return afb_hook_ditf_queue_job(ditf, callback, argument, group, timeout, r);
182 static const struct afb_daemon_itf daemon_itf = {
183 .vverbose_v1 = old_vverbose_cb,
184 .vverbose_v2 = vverbose_cb,
185 .event_make = event_make_cb,
186 .event_broadcast = event_broadcast_cb,
187 .get_event_loop = afb_common_get_event_loop,
188 .get_user_bus = afb_common_get_user_bus,
189 .get_system_bus = afb_common_get_system_bus,
190 .rootdir_get_fd = afb_common_rootdir_get_fd,
191 .rootdir_open_locale = rootdir_open_locale_cb,
192 .queue_job = queue_job_cb
195 static const struct afb_daemon_itf hooked_daemon_itf = {
196 .vverbose_v1 = hooked_old_vverbose_cb,
197 .vverbose_v2 = hooked_vverbose_cb,
198 .event_make = hooked_event_make_cb,
199 .event_broadcast = hooked_event_broadcast_cb,
200 .get_event_loop = hooked_get_event_loop,
201 .get_user_bus = hooked_get_user_bus,
202 .get_system_bus = hooked_get_system_bus,
203 .rootdir_get_fd = hooked_rootdir_get_fd,
204 .rootdir_open_locale = hooked_rootdir_open_locale_cb,
205 .queue_job = hooked_queue_job_cb
208 void afb_ditf_init_v2(struct afb_ditf *ditf, const char *api, struct afb_binding_data_v2 *data)
212 data->daemon.closure = ditf;
213 afb_ditf_rename(ditf, api);
216 void afb_ditf_init_v1(struct afb_ditf *ditf, const char *api, struct afb_binding_interface_v1 *itf)
220 itf->verbosity = verbosity;
221 itf->mode = AFB_MODE_LOCAL;
222 itf->daemon.closure = ditf;
223 afb_ditf_rename(ditf, api);
226 void afb_ditf_rename(struct afb_ditf *ditf, const char *api)
229 afb_ditf_update_hook(ditf);
232 void afb_ditf_update_hook(struct afb_ditf *ditf)
234 int hooked = !!afb_hook_flags_ditf(ditf->api);
235 switch (ditf->version) {
237 ditf->v1->daemon.itf = hooked ? &hooked_daemon_itf : &daemon_itf;
241 ditf->v2->daemon.itf = hooked ? &hooked_daemon_itf : &daemon_itf;