| // |
| // Copyright (C) 2015 Google, Inc. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at: |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| // |
| |
| #include <errno.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <sys/socket.h> |
| #include <sys/un.h> |
| #include <unistd.h> |
| |
| #define LOG_TAG "bt_host" |
| // For system properties |
| // TODO(icoolidge): abstraction or non-cutils stub. |
| #if !defined(OS_GENERIC) |
| #include <cutils/properties.h> |
| #endif // !defined(OS_GENERIC) |
| |
| #include "core_stack.h" |
| #include "host.h" |
| #include "osi/include/log.h" |
| #include "osi/include/socket_utils/sockets.h" |
| |
| namespace { |
| |
| // TODO(armansito): None of these should be hardcoded here. Instead, pass these |
| // via commandline. |
| const char kDisableProperty[] = "persist.bluetooth.disable"; |
| const char kSocketFromInit[] = "bluetooth"; |
| const char kUnixIpcSocketPath[] = "bluetooth-ipc-socket"; |
| |
| } // namespace |
| |
| int main() { |
| // TODO(armansito): Move all of the IPC connection establishment into its own |
| // class. Here we should only need to initialize and start the main |
| // MessageLoop and the CoreStack instance. |
| int status; |
| |
| #if !defined(OS_GENERIC) |
| char disable_value[PROPERTY_VALUE_MAX]; |
| status = property_get(kDisableProperty, disable_value, nullptr); |
| if (status && !strcmp(disable_value, "1")) { |
| LOG_INFO(LOG_TAG, "%s", "service disabled"); |
| return EXIT_SUCCESS; |
| } |
| |
| int server_socket = osi_android_get_control_socket(kSocketFromInit); |
| if (server_socket < 0) { |
| LOG_ERROR(LOG_TAG, "failed to get socket from init"); |
| return EXIT_FAILURE; |
| } |
| #else // defined(OS_GENERIC) |
| int server_socket = socket(PF_UNIX, SOCK_SEQPACKET, 0); |
| if (server_socket < 0) { |
| LOG_ERROR(LOG_TAG, "failed to open domain socket for IPC"); |
| return EXIT_FAILURE; |
| } |
| |
| // TODO(armansito): This is opens the door to potentially unlinking files in |
| // the current directory that we're not supposed to. For now we will have an |
| // assumption that the daemon runs in a sandbox but we should generally do |
| // this properly. |
| // |
| // Also, the daemon should clean this up properly as it shuts down. |
| unlink(kUnixIpcSocketPath); |
| |
| struct sockaddr_un address; |
| memset(&address, 0, sizeof(address)); |
| address.sun_family = AF_UNIX; |
| strncpy(address.sun_path, kUnixIpcSocketPath, sizeof(address.sun_path) - 1); |
| |
| if (bind(server_socket, (struct sockaddr*)&address, sizeof(address)) < 0) { |
| LOG_ERROR(LOG_TAG, "Failed to bind IPC socket to address"); |
| return EXIT_FAILURE; |
| } |
| |
| #endif // !defined(OS_GENERIC) |
| |
| status = listen(server_socket, SOMAXCONN); |
| if (status < 0) { |
| LOG_ERROR(LOG_TAG, "listen failed: %s", strerror(errno)); |
| return EXIT_FAILURE; |
| } |
| |
| bluetooth::CoreStack bt; |
| bt.Initialize(); |
| |
| // TODO(icoolidge): accept simultaneous clients |
| while (true) { |
| int client_socket = accept4(server_socket, nullptr, nullptr, SOCK_NONBLOCK); |
| if (status == -1) { |
| LOG_ERROR(LOG_TAG, "accept failed: %s", strerror(errno)); |
| return EXIT_FAILURE; |
| } |
| |
| LOG_INFO(LOG_TAG, "client connected: %d", client_socket); |
| bluetooth::Host bluetooth_host(client_socket, &bt); |
| bluetooth_host.EventLoop(); |
| } |
| |
| close(server_socket); |
| |
| return EXIT_SUCCESS; |
| } |