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 <sensor_types_private.h>
27 #include <command_types.h>
29 #include "permission_checker.h"
30 #include "application_sensor_handler.h"
32 using namespace sensor;
36 std::unordered_map<uint32_t, sensor_listener_proxy *> server_channel_handler::m_listeners;
37 std::unordered_map<ipc::channel *, uint32_t> server_channel_handler::m_listener_ids;
38 std::unordered_map<ipc::channel *, application_sensor_handler *> server_channel_handler::m_app_sensors;
40 server_channel_handler::server_channel_handler(sensor_manager *manager)
45 server_channel_handler::~server_channel_handler()
49 void server_channel_handler::connected(channel *ch)
53 void server_channel_handler::disconnected(channel *ch)
55 m_manager->deregister_channel(ch);
57 auto it_asensor = m_app_sensors.find(ch);
58 if (it_asensor != m_app_sensors.end()) {
59 sensor_info info = it_asensor->second->get_sensor_info();
61 _I("Disconnected provider[%s]", info.get_uri().c_str());
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_CONNECT:
83 err = manager_connect(ch, msg); break;
84 case CMD_MANAGER_DISCONNECT:
85 err = manager_disconnect(ch, msg); break;
86 case CMD_MANAGER_SENSOR_LIST:
87 err = manager_get_sensor_list(ch, msg); break;
88 case CMD_LISTENER_CONNECT:
89 err = listener_connect(ch, msg); break;
90 case CMD_LISTENER_DISCONNECT:
91 err = listener_disconnect(ch, msg); break;
92 case CMD_LISTENER_START:
93 err = listener_start(ch, msg); break;
94 case CMD_LISTENER_STOP:
95 err = listener_stop(ch, msg); break;
96 case CMD_LISTENER_ATTR_INT:
97 err = listener_attr_int(ch, msg); break;
98 case CMD_LISTENER_ATTR_STR:
99 err = listener_attr_str(ch, msg); break;
100 case CMD_LISTENER_GET_DATA:
101 err = listener_get_data(ch, msg); break;
102 case CMD_PROVIDER_CONNECT:
103 err = provider_connect(ch, msg); break;
104 case CMD_PROVIDER_DISCONNECT:
105 err = provider_disconnect(ch, msg); break;
106 case CMD_PROVIDER_PUBLISH:
107 err = provider_publish(ch, msg); break;
108 case CMD_HAS_PRIVILEGE:
109 err = has_privileges(ch, msg); break;
115 ch->send_sync(&reply);
119 int server_channel_handler::manager_connect(channel *ch, message &msg)
121 m_manager->register_channel(ch);
125 int server_channel_handler::manager_disconnect(channel *ch, message &msg)
127 m_manager->deregister_channel(ch);
128 return send_reply(ch, OP_SUCCESS);
131 int server_channel_handler::manager_get_sensor_list(channel *ch, message &msg)
137 size = m_manager->serialize(ch->get_fd(), &bytes);
138 retv_if(size < 0, size);
140 reply.enclose((const char *)bytes, size);
141 reply.header()->err = OP_SUCCESS;
142 ch->send_sync(&reply);
149 int server_channel_handler::listener_connect(channel *ch, message &msg)
151 static uint32_t listener_id = 1;
152 cmd_listener_connect_t buf;
154 msg.disclose((char *)&buf);
156 sensor_listener_proxy *listener;
157 listener = new(std::nothrow) sensor_listener_proxy(listener_id,
158 buf.sensor, m_manager, ch);
159 retvm_if(!listener, OP_ERROR, "Failed to allocate memory");
160 retvm_if(!has_privileges(ch->get_fd(), listener->get_required_privileges()),
161 -EACCES, "Permission denied");
163 buf.listener_id = listener_id;
166 reply.enclose((const char *)&buf, sizeof(buf));
167 reply.header()->err = OP_SUCCESS;
169 if (!ch->send_sync(&reply))
172 _I("Connected sensor_listener[fd(%d) -> id(%u)]", ch->get_fd(), listener_id);
173 m_listeners[listener_id] = listener;
174 m_listener_ids[ch] = listener_id;
180 int server_channel_handler::listener_disconnect(channel *ch, message &msg)
182 auto it = m_listener_ids.find(ch);
183 retv_if(it == m_listener_ids.end(), -EINVAL);
185 uint32_t id = it->second;
187 retvm_if(!has_privileges(ch->get_fd(), m_listeners[id]->get_required_privileges()),
188 -EACCES, "Permission denied");
190 delete m_listeners[id];
191 m_listeners.erase(id);
192 m_listener_ids.erase(ch);
194 _D("Disconnected sensor_listener[%u]", id);
196 return send_reply(ch, OP_SUCCESS);
199 int server_channel_handler::listener_start(channel *ch, message &msg)
201 cmd_listener_start_t buf;
202 msg.disclose((char *)&buf);
203 uint32_t id = buf.listener_id;
205 auto it = m_listeners.find(id);
206 retv_if(it == m_listeners.end(), -EINVAL);
207 retvm_if(!has_privileges(ch->get_fd(), m_listeners[id]->get_required_privileges()),
208 -EACCES, "Permission denied");
210 int ret = m_listeners[id]->start();
211 retv_if(ret < 0, ret);
213 return send_reply(ch, OP_SUCCESS);
216 int server_channel_handler::listener_stop(channel *ch, message &msg)
218 cmd_listener_stop_t buf;
219 msg.disclose((char *)&buf);
220 uint32_t id = buf.listener_id;
222 auto it = m_listeners.find(id);
223 retv_if(it == m_listeners.end(), -EINVAL);
224 retvm_if(!has_privileges(ch->get_fd(), m_listeners[id]->get_required_privileges()),
225 -EACCES, "Permission denied");
227 int ret = m_listeners[id]->stop();
228 retv_if(ret < 0, ret);
230 return send_reply(ch, OP_SUCCESS);
233 int server_channel_handler::listener_attr_int(channel *ch, message &msg)
235 cmd_listener_attr_int_t buf;
236 msg.disclose((char *)&buf);
237 uint32_t id = buf.listener_id;
239 int ret = OP_SUCCESS;
241 auto it = m_listeners.find(id);
242 retv_if(it == m_listeners.end(), -EINVAL);
243 retvm_if(!has_privileges(ch->get_fd(), m_listeners[id]->get_required_privileges()),
244 -EACCES, "Permission denied");
246 switch (buf.attribute) {
247 case SENSORD_ATTRIBUTE_INTERVAL:
248 ret = m_listeners[id]->set_interval(buf.value); break;
249 case SENSORD_ATTRIBUTE_MAX_BATCH_LATENCY:
250 ret = m_listeners[id]->set_max_batch_latency(buf.value); break;
251 case SENSORD_ATTRIBUTE_PASSIVE_MODE:
252 ret = m_listeners[id]->set_passive_mode(buf.value); break;
253 case SENSORD_ATTRIBUTE_PAUSE_POLICY:
254 case SENSORD_ATTRIBUTE_AXIS_ORIENTATION:
256 ret = m_listeners[id]->set_attribute(buf.attribute, buf.value);
258 /* TODO : check return value */
260 _W("Return : %d", ret);
262 return send_reply(ch, OP_SUCCESS);
265 int server_channel_handler::listener_attr_str(channel *ch, message &msg)
267 cmd_listener_attr_str_t buf;
268 msg.disclose((char *)&buf);
269 uint32_t id = buf.listener_id;
271 auto it = m_listeners.find(id);
272 retv_if(it == m_listeners.end(), -EINVAL);
273 retvm_if(!has_privileges(ch->get_fd(), m_listeners[id]->get_required_privileges()),
274 -EACCES, "Permission denied");
276 int ret = m_listeners[id]->set_attribute(buf.attribute, buf.value, buf.len);
277 retv_if(ret < 0, ret);
279 return send_reply(ch, OP_SUCCESS);
282 int server_channel_handler::listener_get_data(channel *ch, message &msg)
285 cmd_listener_get_data_t buf;
290 msg.disclose((char *)&buf);
291 id = buf.listener_id;
293 auto it = m_listeners.find(id);
294 retv_if(it == m_listeners.end(), -EINVAL);
295 retvm_if(!has_privileges(ch->get_fd(), m_listeners[id]->get_required_privileges()),
296 -EACCES, "Permission denied");
298 int ret = m_listeners[id]->get_data(&data, &len);
299 retv_if(ret < 0, ret);
301 memcpy(&buf.data, data, sizeof(sensor_data_t));
302 buf.len = sizeof(sensor_data_t);
304 reply.enclose((const char *)&buf, sizeof(cmd_listener_get_data_t));
305 reply.header()->err = OP_SUCCESS;
306 reply.header()->type = CMD_LISTENER_GET_DATA;
308 ch->send_sync(&reply);
315 int server_channel_handler::provider_connect(channel *ch, message &msg)
319 info.deserialize(msg.body(), msg.size());
323 application_sensor_handler *sensor;
324 sensor = new(std::nothrow) application_sensor_handler(info, ch);
325 retvm_if(!sensor, -ENOMEM, "Failed to allocate memory");
327 if (!m_manager->register_sensor(sensor)) {
333 m_app_sensors[ch] = sensor;
335 return send_reply(ch, OP_SUCCESS);
338 int server_channel_handler::provider_disconnect(channel *ch, message &msg)
340 auto it = m_app_sensors.find(ch);
341 retv_if(it == m_app_sensors.end(), -EINVAL);
343 sensor_info info = it->second->get_sensor_info();
345 m_manager->deregister_sensor(info.get_uri());
346 m_app_sensors.erase(ch);
348 return send_reply(ch, OP_SUCCESS);
351 int server_channel_handler::provider_publish(channel *ch, message &msg)
353 auto it = m_app_sensors.find(ch);
354 retv_if(it == m_app_sensors.end(), -EINVAL);
356 sensor_data_t *data = (sensor_data_t *)malloc(sizeof(sensor_data_t));
357 retvm_if(!data, -ENOMEM, "Failed to allocate memory");
359 msg.disclose((char *)data);
361 it->second->publish(data, sizeof(sensor_data_t));
366 int server_channel_handler::has_privileges(channel *ch, message &msg)
368 sensor_handler *sensor;
369 cmd_has_privilege_t buf;
370 msg.disclose((char *)&buf);
372 sensor = m_manager->get_sensor(buf.sensor);
373 retv_if(!sensor, OP_ERROR);
375 sensor_info info = sensor->get_sensor_info();
377 if (!has_privileges(ch->get_fd(), info.get_privilege()))
380 return send_reply(ch, OP_SUCCESS);
383 int server_channel_handler::send_reply(channel *ch, int error)
385 message reply(error);
386 retvm_if(!ch->send_sync(&reply), OP_ERROR, "Failed to send reply");
390 bool server_channel_handler::has_privilege(int fd, std::string &priv)
392 static permission_checker checker;
393 return checker.has_permission(fd, priv);
396 bool server_channel_handler::has_privileges(int fd, std::string priv)
398 std::vector<std::string> privileges;
399 privileges = utils::tokenize(priv, PRIV_DELIMITER);
401 for (auto it = privileges.begin(); it != privileges.end(); ++it) {
402 if (!has_privilege(fd, *it))