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_SENSOR_LIST:
85 err = manager_get_sensor_list(ch, msg); break;
86 case CMD_LISTENER_CONNECT:
87 err = listener_connect(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_SET_ATTR_INT:
93 err = listener_set_attr_int(ch, msg); break;
94 case CMD_LISTENER_SET_ATTR_STR:
95 err = listener_set_attr_str(ch, msg); break;
96 case CMD_LISTENER_GET_DATA:
97 err = listener_get_data(ch, msg); break;
98 case CMD_LISTENER_GET_ATTR_INT:
99 err = listener_get_attr_int(ch, msg); break;
100 case CMD_LISTENER_GET_ATTR_STR:
101 err = listener_get_attr_str(ch, msg); break;
102 case CMD_LISTENER_GET_DATA_LIST:
103 err = listener_get_data_list(ch, msg); break;
104 case CMD_PROVIDER_CONNECT:
105 err = provider_connect(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_get_sensor_list(channel *ch, message &msg)
131 size = m_manager->serialize(ch->get_fd(), &bytes);
132 retv_if(size < 0, size);
134 reply.enclose((const char *)bytes, size);
135 reply.header()->err = OP_SUCCESS;
136 ch->send_sync(reply);
143 int server_channel_handler::listener_connect(channel *ch, message &msg)
145 static uint32_t listener_id = 1;
146 cmd_listener_connect_t buf;
148 msg.disclose((char *)&buf);
150 sensor_listener_proxy *listener;
151 listener = new(std::nothrow) sensor_listener_proxy(listener_id,
152 buf.sensor, m_manager, ch);
153 retvm_if(!listener, OP_ERROR, "Failed to allocate memory");
154 retvm_if(!has_privileges(ch->get_fd(), listener->get_required_privileges()),
155 -EACCES, "Permission denied[%d, %s]",
156 listener_id, m_listeners[listener_id]->get_required_privileges().c_str());
158 buf.listener_id = listener_id;
161 reply.enclose((const char *)&buf, sizeof(buf));
162 reply.header()->err = OP_SUCCESS;
164 if (!ch->send_sync(reply))
167 _I("Connected sensor_listener[fd(%d) -> id(%u)]", ch->get_fd(), listener_id);
168 m_listeners[listener_id] = listener;
169 m_listener_ids[ch] = listener_id;
175 int server_channel_handler::listener_start(channel *ch, message &msg)
177 cmd_listener_start_t buf;
178 msg.disclose((char *)&buf);
179 uint32_t id = buf.listener_id;
181 auto it = m_listeners.find(id);
182 retv_if(it == m_listeners.end(), -EINVAL);
183 retvm_if(!has_privileges(ch->get_fd(), m_listeners[id]->get_required_privileges()),
184 -EACCES, "Permission denied[%d, %s]",
185 id, m_listeners[id]->get_required_privileges().c_str());
187 int ret = m_listeners[id]->start();
188 retvm_if(ret < 0, ret, "Failed to start listener[%d]", id);
190 return send_reply(ch, OP_SUCCESS);
193 int server_channel_handler::listener_stop(channel *ch, message &msg)
195 cmd_listener_stop_t buf;
196 msg.disclose((char *)&buf);
197 uint32_t id = buf.listener_id;
199 auto it = m_listeners.find(id);
200 retv_if(it == m_listeners.end(), -EINVAL);
201 retvm_if(!has_privileges(ch->get_fd(), m_listeners[id]->get_required_privileges()),
202 -EACCES, "Permission denied[%d, %s]",
203 id, m_listeners[id]->get_required_privileges().c_str());
205 int ret = m_listeners[id]->stop();
206 retvm_if(ret < 0, ret, "Failed to stop listener[%d]", id);
208 return send_reply(ch, OP_SUCCESS);
211 int server_channel_handler::listener_set_attr_int(channel *ch, message &msg)
213 cmd_listener_attr_int_t buf;
214 msg.disclose((char *)&buf);
215 uint32_t id = buf.listener_id;
217 int ret = OP_SUCCESS;
219 auto it = m_listeners.find(id);
220 retv_if(it == m_listeners.end(), -EINVAL);
221 retvm_if(!has_privileges(ch->get_fd(), m_listeners[id]->get_required_privileges()),
222 -EACCES, "Permission denied[%d, %s]",
223 id, m_listeners[id]->get_required_privileges().c_str());
225 bool need_notify = false;
227 switch (buf.attribute) {
228 case SENSORD_ATTRIBUTE_INTERVAL:
229 ret = m_listeners[id]->set_interval(buf.value); break;
230 case SENSORD_ATTRIBUTE_MAX_BATCH_LATENCY:
231 ret = m_listeners[id]->set_max_batch_latency(buf.value); break;
232 case SENSORD_ATTRIBUTE_PASSIVE_MODE:
233 ret = m_listeners[id]->set_passive_mode(buf.value); break;
234 case SENSORD_ATTRIBUTE_PAUSE_POLICY:
235 case SENSORD_ATTRIBUTE_AXIS_ORIENTATION:
237 ret = m_listeners[id]->set_attribute(buf.attribute, buf.value);
239 /* TODO : check return value */
241 _D("Return : %d", ret);
243 ret = send_reply(ch, OP_SUCCESS);
245 if (m_listeners[id]->need_to_notify_attribute_changed()) {
246 m_listeners[id]->notify_attribute_changed(buf.attribute, buf.value);
247 m_listeners[id]->set_need_to_notify_attribute_changed(false);
253 int server_channel_handler::listener_set_attr_str(channel *ch, message &msg)
256 cmd_listener_attr_str_t *buf;
258 buf = (cmd_listener_attr_str_t *) new(std::nothrow) char[msg.size()];
259 retvm_if(!buf, -ENOMEM, "Failed to allocate memory");
261 msg.disclose((char *)buf);
263 id = buf->listener_id;
264 auto it = m_listeners.find(id);
265 if (it == m_listeners.end()) {
270 if (!has_privileges(ch->get_fd(), m_listeners[id]->get_required_privileges())) {
271 _E("Permission denied[%d, %s]", id, m_listeners[id]->get_required_privileges().c_str());
276 int ret = m_listeners[id]->set_attribute(buf->attribute, buf->value, buf->len);
282 ret = send_reply(ch, OP_SUCCESS);
284 if (m_listeners[id]->need_to_notify_attribute_changed()) {
285 m_listeners[id]->notify_attribute_changed(buf->attribute, buf->value, buf->len);
286 m_listeners[id]->set_need_to_notify_attribute_changed(false);
293 int server_channel_handler::listener_get_attr_int(ipc::channel *ch, ipc::message &msg)
295 cmd_listener_attr_int_t buf;
296 msg.disclose((char *)&buf);
297 uint32_t id = buf.listener_id;
298 int attr = buf.attribute;
300 int ret = OP_SUCCESS;
302 auto it = m_listeners.find(id);
303 retv_if(it == m_listeners.end(), -EINVAL);
304 retvm_if(!has_privileges(ch->get_fd(), m_listeners[id]->get_required_privileges()),
305 -EACCES, "Permission denied[%d, %s]",
306 id, m_listeners[id]->get_required_privileges().c_str());
309 case SENSORD_ATTRIBUTE_INTERVAL:
310 ret = m_listeners[id]->get_interval(value); break;
311 case SENSORD_ATTRIBUTE_MAX_BATCH_LATENCY:
312 ret = m_listeners[id]->get_max_batch_latency(value); break;
313 case SENSORD_ATTRIBUTE_PASSIVE_MODE:
314 // TODO : Are these features required?
317 case SENSORD_ATTRIBUTE_PAUSE_POLICY:
318 case SENSORD_ATTRIBUTE_AXIS_ORIENTATION:
320 ret = m_listeners[id]->get_attribute(attr, &value);
323 if (ret != OP_SUCCESS) {
324 _E("Failed to listener_get_attr_int");
328 cmd_listener_attr_int_t ret_buf;
330 ret_buf.listener_id = id;
331 ret_buf.attribute = attr;
332 ret_buf.value = value;
334 reply.enclose((char *)&ret_buf, sizeof(ret_buf));
335 reply.header()->err = OP_SUCCESS;
336 reply.set_type(CMD_LISTENER_GET_ATTR_INT);
337 ret = ch->send_sync(reply);
342 int server_channel_handler::listener_get_attr_str(ipc::channel *ch, ipc::message &msg)
345 cmd_listener_attr_str_t *buf;
347 buf = (cmd_listener_attr_str_t *) new(std::nothrow) char[msg.size()];
348 retvm_if(!buf, -ENOMEM, "Failed to allocate memory");
350 msg.disclose((char *)buf);
352 id = buf->listener_id;
353 auto it = m_listeners.find(id);
354 auto attr = buf->attribute;
357 if (it == m_listeners.end()) {
361 if (!has_privileges(ch->get_fd(), m_listeners[id]->get_required_privileges())) {
362 _E("Permission denied[%d, %s]", id, m_listeners[id]->get_required_privileges().c_str());
368 int ret = m_listeners[id]->get_attribute(attr, &value, &len);
370 if (ret != OP_SUCCESS) {
371 _E("Failed to listener_get_attr_str");
375 cmd_listener_attr_str_t *reply_buf;
376 size_t size = sizeof(cmd_listener_attr_str_t) + len;
377 reply_buf = (cmd_listener_attr_str_t *) new(std::nothrow) char[size];
378 retvm_if(!reply_buf, -ENOMEM, "Failed to allocate memory");
380 reply_buf->attribute = attr;
381 memcpy(reply_buf->value, value, len);
382 reply_buf->len = len;
386 reply.enclose((char *)reply_buf, size);
387 reply.set_type(CMD_LISTENER_GET_ATTR_STR);
389 ret = ch->send_sync(reply);
395 int server_channel_handler::listener_get_data(channel *ch, message &msg)
398 cmd_listener_get_data_t buf;
403 msg.disclose((char *)&buf);
404 id = buf.listener_id;
406 auto it = m_listeners.find(id);
407 retv_if(it == m_listeners.end(), -EINVAL);
408 retvm_if(!has_privileges(ch->get_fd(), m_listeners[id]->get_required_privileges()),
409 -EACCES, "Permission denied[%d, %s]",
410 id, m_listeners[id]->get_required_privileges().c_str());
412 int ret = m_listeners[id]->get_data(&data, &len);
413 retv_if(ret < 0, ret);
415 memcpy(&buf.data, data, sizeof(sensor_data_t));
416 buf.len = sizeof(sensor_data_t);
418 reply.enclose((const char *)&buf, sizeof(cmd_listener_get_data_t));
419 reply.header()->err = OP_SUCCESS;
420 reply.header()->type = CMD_LISTENER_GET_DATA;
422 ch->send_sync(reply);
429 int server_channel_handler::listener_get_data_list(ipc::channel *ch, ipc::message &msg)
432 cmd_listener_get_data_list_t buf;
437 msg.disclose((char *)&buf);
438 id = buf.listener_id;
440 auto it = m_listeners.find(id);
441 retv_if(it == m_listeners.end(), -EINVAL);
442 retvm_if(!has_privileges(ch->get_fd(), m_listeners[id]->get_required_privileges()),
443 -EACCES, "Permission denied[%d, %s]",
444 id, m_listeners[id]->get_required_privileges().c_str());
446 int ret = m_listeners[id]->get_data(&data, &len);
447 retv_if(ret < 0, ret);
449 size_t reply_size = sizeof(cmd_listener_get_data_list_t) + len;
450 cmd_listener_get_data_list_t* reply_buf = (cmd_listener_get_data_list_t *) malloc(reply_size);
452 _E("Failed to allocate memory");
457 memcpy(reply_buf->data, data, len);
458 reply_buf->len = len;
459 reply_buf->data_count = len / sizeof(sensor_data_t);
460 reply.enclose((const char *)reply_buf, reply_size);
461 reply.header()->err = OP_SUCCESS;
462 reply.header()->type = CMD_LISTENER_GET_DATA_LIST;
464 ch->send_sync(reply);
473 int server_channel_handler::provider_connect(channel *ch, message &msg)
477 info.deserialize(msg.body(), msg.size());
481 application_sensor_handler *sensor;
482 sensor = new(std::nothrow) application_sensor_handler(info, ch);
483 retvm_if(!sensor, -ENOMEM, "Failed to allocate memory");
485 if (!m_manager->register_sensor(sensor)) {
491 m_app_sensors[ch] = sensor;
493 return send_reply(ch, OP_SUCCESS);
496 int server_channel_handler::provider_publish(channel *ch, message &msg)
498 auto it = m_app_sensors.find(ch);
499 retv_if(it == m_app_sensors.end(), -EINVAL);
501 size_t size = msg.header()->length;
502 void *data = (void *)malloc(size);
503 retvm_if(!data, -ENOMEM, "Failed to allocate memory");
507 it->second->publish((sensor_data_t*)data, size);
511 int server_channel_handler::has_privileges(channel *ch, message &msg)
513 sensor_handler *sensor;
514 cmd_has_privilege_t buf;
515 msg.disclose((char *)&buf);
517 sensor = m_manager->get_sensor(buf.sensor);
518 retv_if(!sensor, OP_ERROR);
520 sensor_info info = sensor->get_sensor_info();
522 if (!has_privileges(ch->get_fd(), info.get_privilege()))
525 return send_reply(ch, OP_SUCCESS);
528 int server_channel_handler::send_reply(channel *ch, int error)
530 message reply(error);
531 retvm_if(!ch->send_sync(reply), OP_ERROR, "Failed to send reply");
535 bool server_channel_handler::has_privilege(int fd, std::string &priv)
537 static permission_checker checker;
538 return checker.has_permission(fd, priv);
541 bool server_channel_handler::has_privileges(int fd, std::string priv)
543 std::vector<std::string> privileges;
544 privileges = utils::tokenize(priv, PRIV_DELIMITER);
546 for (auto it = privileges.begin(); it != privileges.end(); ++it) {
547 if (!has_privilege(fd, *it))