4 * Copyright (c) 2017 Samsung Electronics Co., Ltd.
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
10 * http://www.apache.org/licenses/LICENSE-2.0
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
20 #include "server_channel_handler.h"
22 #include <sensor_log.h>
23 #include <sensor_info.h>
24 #include <sensor_handler.h>
25 #include <sensor_utils.h>
26 #include <command_types.h>
28 #include "permission_checker.h"
29 #include "application_sensor_handler.h"
31 #define PRIV_DELIMINATOR ";"
33 using namespace sensor;
37 std::unordered_map<uint32_t, sensor_listener_proxy *> server_channel_handler::m_listeners;
38 std::unordered_map<ipc::channel *, uint32_t> server_channel_handler::m_listener_ids;
39 std::unordered_map<ipc::channel *, application_sensor_handler *> server_channel_handler::m_app_sensors;
41 server_channel_handler::server_channel_handler(sensor_manager *manager)
46 server_channel_handler::~server_channel_handler()
50 void server_channel_handler::connected(channel *ch)
54 void server_channel_handler::disconnected(channel *ch)
56 auto it_asensor = m_app_sensors.find(ch);
57 if (it_asensor != m_app_sensors.end()) {
58 sensor_info info = it_asensor->second->get_sensor_info();
60 _I("Disconnected provider[%s]", info.get_uri().c_str());
62 /* TODO: if sensor is unregistered, related listeners has to be handled */
63 m_manager->deregister_sensor(info.get_uri());
64 m_app_sensors.erase(ch);
67 auto it_listener = m_listener_ids.find(ch);
68 if (it_listener != m_listener_ids.end()) {
69 _I("Disconnected listener[%u]", it_listener->second);
71 delete m_listeners[it_listener->second];
72 m_listeners.erase(it_listener->second);
73 m_listener_ids.erase(ch);
77 void server_channel_handler::read(channel *ch, message &msg)
82 case CMD_MANAGER_SENSOR_LIST:
83 err = manager_get_sensor_list(ch, msg); break;
84 case CMD_LISTENER_CONNECT:
85 err = listener_connect(ch, msg); break;
86 case CMD_LISTENER_DISCONNECT:
87 err = listener_disconnect(ch, msg); break;
88 case CMD_LISTENER_START:
89 err = listener_start(ch, msg); break;
90 case CMD_LISTENER_STOP:
91 err = listener_stop(ch, msg); break;
92 case CMD_LISTENER_ATTR_INT:
93 err = listener_attr_int(ch, msg); break;
94 case CMD_LISTENER_ATTR_STR:
95 err = listener_attr_str(ch, msg); break;
96 case CMD_LISTENER_GET_DATA:
97 err = listener_get_data(ch, msg); break;
98 case CMD_PROVIDER_CONNECT:
99 err = provider_connect(ch, msg); break;
100 case CMD_PROVIDER_DISCONNECT:
101 err = provider_disconnect(ch, msg); break;
102 case CMD_PROVIDER_PUBLISH:
103 err = provider_publish(ch, msg); break;
104 case CMD_HAS_PRIVILEGE:
105 err = has_privileges(ch, msg); break;
111 ch->send_sync(&reply);
115 int server_channel_handler::manager_get_sensor_list(channel *ch, message &msg)
121 size = m_manager->serialize(ch->get_fd(), &bytes);
122 retv_if(size < 0, size);
124 reply.enclose((const char *)bytes, size);
125 reply.header()->err = OP_SUCCESS;
126 ch->send_sync(&reply);
133 int server_channel_handler::listener_connect(channel *ch, message &msg)
135 static uint32_t listener_id = 1;
136 cmd_listener_connect_t buf;
138 msg.disclose((char *)&buf);
140 sensor_listener_proxy *listener;
141 listener = new(std::nothrow) sensor_listener_proxy(listener_id,
142 buf.sensor, m_manager, ch);
143 retvm_if(!listener, OP_ERROR, "Failed to allocate memory");
144 retvm_if(!has_privileges(ch->get_fd(), listener->get_required_privileges()),
145 -EACCES, "Permission denied");
147 buf.listener_id = listener_id;
150 reply.enclose((const char *)&buf, sizeof(buf));
151 reply.header()->err = OP_SUCCESS;
153 if (!ch->send_sync(&reply))
156 _I("Connected sensor_listener[fd(%d) -> id(%u)]", ch->get_fd(), listener_id);
157 m_listeners[listener_id] = listener;
158 m_listener_ids[ch] = listener_id;
164 int server_channel_handler::listener_disconnect(channel *ch, message &msg)
166 auto it = m_listener_ids.find(ch);
167 retv_if(it == m_listener_ids.end(), -EINVAL);
169 uint32_t id = it->second;
171 retvm_if(!has_privileges(ch->get_fd(), m_listeners[id]->get_required_privileges()),
172 -EACCES, "Permission denied");
174 delete m_listeners[id];
175 m_listeners.erase(id);
176 m_listener_ids.erase(ch);
178 _D("Disconnected sensor_listener[%u]", id);
180 return send_reply(ch, OP_SUCCESS);
183 int server_channel_handler::listener_start(channel *ch, message &msg)
185 cmd_listener_start_t buf;
186 msg.disclose((char *)&buf);
187 uint32_t id = buf.listener_id;
189 auto it = m_listeners.find(id);
190 retv_if(it == m_listeners.end(), -EINVAL);
191 retvm_if(!has_privileges(ch->get_fd(), m_listeners[id]->get_required_privileges()),
192 -EACCES, "Permission denied");
194 int ret = m_listeners[id]->start();
195 retv_if(ret < 0, ret);
197 return send_reply(ch, OP_SUCCESS);
200 int server_channel_handler::listener_stop(channel *ch, message &msg)
202 cmd_listener_stop_t buf;
203 msg.disclose((char *)&buf);
204 uint32_t id = buf.listener_id;
206 auto it = m_listeners.find(id);
207 retv_if(it == m_listeners.end(), -EINVAL);
208 retvm_if(!has_privileges(ch->get_fd(), m_listeners[id]->get_required_privileges()),
209 -EACCES, "Permission denied");
211 int ret = m_listeners[id]->stop();
212 retv_if(ret < 0, ret);
214 return send_reply(ch, OP_SUCCESS);
217 int server_channel_handler::listener_attr_int(channel *ch, message &msg)
219 cmd_listener_attr_int_t buf;
220 msg.disclose((char *)&buf);
221 uint32_t id = buf.listener_id;
223 int ret = OP_SUCCESS;
225 auto it = m_listeners.find(id);
226 retv_if(it == m_listeners.end(), -EINVAL);
227 retvm_if(!has_privileges(ch->get_fd(), m_listeners[id]->get_required_privileges()),
228 -EACCES, "Permission denied");
230 switch (buf.attribute) {
231 case SENSORD_ATTRIBUTE_INTERVAL:
232 ret = m_listeners[id]->set_interval(buf.value); break;
233 case SENSORD_ATTRIBUTE_MAX_BATCH_LATENCY:
234 ret = m_listeners[id]->set_max_batch_latency(buf.value); break;
235 case SENSORD_ATTRIBUTE_PASSIVE_MODE:
236 ret = m_listeners[id]->set_passive_mode(buf.value); break;
237 case SENSORD_ATTRIBUTE_PAUSE_POLICY:
238 case SENSORD_ATTRIBUTE_AXIS_ORIENTATION:
240 ret = m_listeners[id]->set_attribute(buf.attribute, buf.value);
242 /* TODO : check return value */
244 _W("Return : %d", ret);
246 return send_reply(ch, OP_SUCCESS);
249 int server_channel_handler::listener_attr_str(channel *ch, message &msg)
251 cmd_listener_attr_str_t buf;
252 msg.disclose((char *)&buf);
253 uint32_t id = buf.listener_id;
255 auto it = m_listeners.find(id);
256 retv_if(it == m_listeners.end(), -EINVAL);
257 retvm_if(!has_privileges(ch->get_fd(), m_listeners[id]->get_required_privileges()),
258 -EACCES, "Permission denied");
260 int ret = m_listeners[id]->set_attribute(buf.attribute, buf.value, buf.len);
261 retv_if(ret < 0, ret);
263 return send_reply(ch, OP_SUCCESS);
266 int server_channel_handler::listener_get_data(channel *ch, message &msg)
269 cmd_listener_get_data_t buf;
274 msg.disclose((char *)&buf);
275 id = buf.listener_id;
277 auto it = m_listeners.find(id);
278 retv_if(it == m_listeners.end(), -EINVAL);
279 retvm_if(!has_privileges(ch->get_fd(), m_listeners[id]->get_required_privileges()),
280 -EACCES, "Permission denied");
282 int ret = m_listeners[id]->get_data(&data, &len);
283 retv_if(ret < 0, ret);
285 memcpy(&buf.data, data, sizeof(sensor_data_t));
286 buf.len = sizeof(sensor_data_t);
288 reply.enclose((const char *)&buf, sizeof(cmd_listener_get_data_t));
289 reply.header()->err = OP_SUCCESS;
290 reply.header()->type = CMD_LISTENER_GET_DATA;
292 ch->send_sync(&reply);
299 int server_channel_handler::provider_connect(channel *ch, message &msg)
301 retvm_if(!has_privileges(ch->get_fd(), PRIV_APPLICATION_SENSOR_WRITE),
302 -EACCES, "Permission denied");
306 info.deserialize(msg.body(), msg.size());
310 application_sensor_handler *sensor;
311 sensor = new(std::nothrow) application_sensor_handler(info, ch);
312 retvm_if(!sensor, -ENOMEM, "Failed to allocate memory");
314 if (!m_manager->register_sensor(sensor)) {
320 m_app_sensors[ch] = sensor;
322 return send_reply(ch, OP_SUCCESS);
325 int server_channel_handler::provider_disconnect(channel *ch, message &msg)
327 auto it = m_app_sensors.find(ch);
328 retv_if(it == m_app_sensors.end(), -EINVAL);
330 sensor_info info = it->second->get_sensor_info();
332 m_manager->deregister_sensor(info.get_uri());
333 m_app_sensors.erase(ch);
335 return send_reply(ch, OP_SUCCESS);
338 int server_channel_handler::provider_publish(channel *ch, message &msg)
340 auto it = m_app_sensors.find(ch);
341 retv_if(it == m_app_sensors.end(), -EINVAL);
343 sensor_data_t *data = (sensor_data_t *)malloc(sizeof(sensor_data_t));
344 retvm_if(!data, -ENOMEM, "Failed to allocate memory");
346 msg.disclose((char *)data);
348 it->second->publish(data, sizeof(sensor_data_t));
353 int server_channel_handler::has_privileges(channel *ch, message &msg)
355 sensor_handler *sensor;
356 cmd_has_privilege_t buf;
357 msg.disclose((char *)&buf);
359 sensor = m_manager->get_sensor(buf.sensor);
360 retv_if(!sensor, OP_ERROR);
362 sensor_info info = sensor->get_sensor_info();
364 if (!has_privileges(ch->get_fd(), info.get_privilege()))
367 return send_reply(ch, OP_SUCCESS);
370 int server_channel_handler::send_reply(channel *ch, int error)
372 message reply(error);
373 retvm_if(!ch->send_sync(&reply), OP_ERROR, "Failed to send reply");
377 bool server_channel_handler::has_privilege(int fd, std::string &priv)
379 static permission_checker checker;
380 return checker.has_permission(fd, priv);
383 bool server_channel_handler::has_privileges(int fd, std::string priv)
385 std::vector<std::string> privileges;
386 privileges = utils::tokenize(priv, PRIV_DELIMINATOR);
388 for (auto it = privileges.begin(); it != privileges.end(); ++it) {
389 if (!has_privilege(fd, *it))