/* * Copyright (C) 2018 The Android Open Source Project * * 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. */ #define TRACE_TAG SERVICES #include "sysdeps.h" #include <stdlib.h> #include <sys/socket.h> #include <sys/un.h> #include <unistd.h> #include <string> #include <android-base/logging.h> #include <android-base/properties.h> #include <android-base/stringprintf.h> #include <bootloader_message/bootloader_message.h> #include <cutils/android_reboot.h> #include "adb_io.h" #include "adb_unique_fd.h" void reboot_service(unique_fd fd, const std::string& arg) { std::string reboot_arg = arg; sync(); if (reboot_arg.empty()) reboot_arg = "adb"; std::string reboot_string = android::base::StringPrintf("reboot,%s", reboot_arg.c_str()); if (reboot_arg == "fastboot" && android::base::GetBoolProperty("ro.boot.dynamic_partitions", false) && access("/dev/socket/recovery", F_OK) == 0) { LOG(INFO) << "Recovery specific reboot fastboot"; /* * The socket is created to allow switching between recovery and * fastboot. */ android::base::unique_fd sock(socket(AF_UNIX, SOCK_STREAM, 0)); if (sock < 0) { WriteFdFmt(fd, "reboot (%s) create\n", strerror(errno)); PLOG(ERROR) << "Creating recovery socket failed"; return; } sockaddr_un addr = {.sun_family = AF_UNIX}; strncpy(addr.sun_path, "/dev/socket/recovery", sizeof(addr.sun_path) - 1); if (connect(sock, reinterpret_cast<sockaddr*>(&addr), sizeof(addr)) == -1) { WriteFdFmt(fd, "reboot (%s) connect\n", strerror(errno)); PLOG(ERROR) << "Couldn't connect to recovery socket"; return; } const char msg_switch_to_fastboot = 'f'; auto ret = adb_write(sock, &msg_switch_to_fastboot, sizeof(msg_switch_to_fastboot)); if (ret != sizeof(msg_switch_to_fastboot)) { WriteFdFmt(fd, "reboot (%s) write\n", strerror(errno)); PLOG(ERROR) << "Couldn't write message to recovery socket to switch to fastboot"; return; } } else { if (!android::base::SetProperty(ANDROID_RB_PROPERTY, reboot_string)) { WriteFdFmt(fd.get(), "reboot (%s) failed\n", reboot_string.c_str()); return; } } // Don't return early. Give the reboot command time to take effect // to avoid messing up scripts which do "adb reboot && adb wait-for-device" while (true) { pause(); } }