8f397309b4
This helps to expose librecovery_ui for device specific RecoveryUi.
Bug: 76436783
Test: mma, unit tests pass
Change-Id: Ic6c3d301d5833e4a592e6ea9d9d059bc4e4919be
(cherry picked from commit b5108c372c)
124 lines
3.8 KiB
C++
124 lines
3.8 KiB
C++
/*
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* Copyright (C) 2012 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "adb_install.h"
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#include <errno.h>
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#include <fcntl.h>
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#include <signal.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <unistd.h>
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#include <android-base/logging.h>
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#include <android-base/properties.h>
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#include "common.h"
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#include "fuse_sideload.h"
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#include "install.h"
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#include "recovery_ui/ui.h"
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int apply_from_adb(bool* wipe_cache) {
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// Save the usb state to restore after the sideload operation.
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std::string usb_state = android::base::GetProperty("sys.usb.state", "none");
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// Clean up state and stop adbd.
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if (usb_state != "none" && !SetUsbConfig("none")) {
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LOG(ERROR) << "Failed to clear USB config";
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return INSTALL_ERROR;
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}
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ui->Print(
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"\n\nNow send the package you want to apply\n"
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"to the device with \"adb sideload <filename>\"...\n");
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pid_t child;
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if ((child = fork()) == 0) {
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execl("/system/bin/recovery", "recovery", "--adbd", nullptr);
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_exit(EXIT_FAILURE);
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}
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if (!SetUsbConfig("sideload")) {
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LOG(ERROR) << "Failed to set usb config to sideload";
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return INSTALL_ERROR;
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}
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// How long (in seconds) we wait for the host to start sending us a package, before timing out.
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static constexpr int ADB_INSTALL_TIMEOUT = 300;
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// FUSE_SIDELOAD_HOST_PATHNAME will start to exist once the host connects and starts serving a
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// package. Poll for its appearance. (Note that inotify doesn't work with FUSE.)
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int result = INSTALL_ERROR;
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int status;
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bool waited = false;
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for (int i = 0; i < ADB_INSTALL_TIMEOUT; ++i) {
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if (waitpid(child, &status, WNOHANG) != 0) {
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result = INSTALL_ERROR;
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waited = true;
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break;
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}
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struct stat st;
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if (stat(FUSE_SIDELOAD_HOST_PATHNAME, &st) != 0) {
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if (errno == ENOENT && i < ADB_INSTALL_TIMEOUT - 1) {
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sleep(1);
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continue;
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} else {
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ui->Print("\nTimed out waiting for package.\n\n");
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result = INSTALL_ERROR;
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kill(child, SIGKILL);
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break;
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}
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}
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result = install_package(FUSE_SIDELOAD_HOST_PATHNAME, wipe_cache, false, 0);
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break;
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}
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if (!waited) {
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// Calling stat() on this magic filename signals the minadbd subprocess to shut down.
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struct stat st;
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stat(FUSE_SIDELOAD_HOST_EXIT_PATHNAME, &st);
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// TODO: there should be a way to cancel waiting for a package (by pushing some button combo on
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// the device). For now you just have to 'adb sideload' a file that's not a valid package, like
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// "/dev/null".
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waitpid(child, &status, 0);
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}
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if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) {
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if (WEXITSTATUS(status) == 3) {
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ui->Print("\nYou need adb 1.0.32 or newer to sideload\nto this device.\n\n");
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} else if (!WIFSIGNALED(status)) {
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ui->Print("\n(adbd status %d)\n", WEXITSTATUS(status));
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}
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}
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// Clean up before switching to the older state, for example setting the state
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// to none sets sys/class/android_usb/android0/enable to 0.
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if (!SetUsbConfig("none")) {
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LOG(ERROR) << "Failed to clear USB config";
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}
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if (usb_state != "none") {
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if (!SetUsbConfig(usb_state)) {
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LOG(ERROR) << "Failed to set USB config to " << usb_state;
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}
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}
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return result;
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}
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