Add install/wipe_device.cpp.
Prior to this CL, GetWipePartitionList was declared in install.h
(libinstall) but defined in recovery.cpp (librecovery). This CL
addresses the issue by refactoring wipe-device related functions into
install/wipe_device.cpp.
Test: atest recovery_component_test
Change-Id: I7ebe04ccfda3d793e085403560a0a202752d9ee3
diff --git a/recovery.cpp b/recovery.cpp
index f9b3bfc..30d8fbf 100644
--- a/recovery.cpp
+++ b/recovery.cpp
@@ -18,11 +18,9 @@
#include <ctype.h>
#include <errno.h>
-#include <fcntl.h>
#include <getopt.h>
#include <inttypes.h>
#include <limits.h>
-#include <linux/fs.h>
#include <linux/input.h>
#include <stdio.h>
#include <stdlib.h>
@@ -30,8 +28,8 @@
#include <sys/types.h>
#include <unistd.h>
-#include <algorithm>
#include <functional>
+#include <iterator>
#include <memory>
#include <string>
#include <vector>
@@ -42,12 +40,11 @@
#include <android-base/properties.h>
#include <android-base/stringprintf.h>
#include <android-base/strings.h>
-#include <android-base/unique_fd.h>
-#include <bootloader_message/bootloader_message.h>
#include <cutils/properties.h> /* for property_list */
#include <healthhalutils/HealthHalUtils.h>
#include <ziparchive/zip_archive.h>
+#include "bootloader_message/bootloader_message.h"
#include "common.h"
#include "fsck_unshare_blocks.h"
#include "install/adb_install.h"
@@ -55,6 +52,7 @@
#include "install/install.h"
#include "install/package.h"
#include "install/wipe_data.h"
+#include "install/wipe_device.h"
#include "otautil/error_code.h"
#include "otautil/logging.h"
#include "otautil/paths.h"
@@ -221,165 +219,6 @@
}
}
-// Secure-wipe a given partition. It uses BLKSECDISCARD, if supported. Otherwise, it goes with
-// BLKDISCARD (if device supports BLKDISCARDZEROES) or BLKZEROOUT.
-static bool secure_wipe_partition(const std::string& partition) {
- android::base::unique_fd fd(TEMP_FAILURE_RETRY(open(partition.c_str(), O_WRONLY)));
- if (fd == -1) {
- PLOG(ERROR) << "Failed to open \"" << partition << "\"";
- return false;
- }
-
- uint64_t range[2] = { 0, 0 };
- if (ioctl(fd, BLKGETSIZE64, &range[1]) == -1 || range[1] == 0) {
- PLOG(ERROR) << "Failed to get partition size";
- return false;
- }
- LOG(INFO) << "Secure-wiping \"" << partition << "\" from " << range[0] << " to " << range[1];
-
- LOG(INFO) << " Trying BLKSECDISCARD...";
- if (ioctl(fd, BLKSECDISCARD, &range) == -1) {
- PLOG(WARNING) << " Failed";
-
- // Use BLKDISCARD if it zeroes out blocks, otherwise use BLKZEROOUT.
- unsigned int zeroes;
- if (ioctl(fd, BLKDISCARDZEROES, &zeroes) == 0 && zeroes != 0) {
- LOG(INFO) << " Trying BLKDISCARD...";
- if (ioctl(fd, BLKDISCARD, &range) == -1) {
- PLOG(ERROR) << " Failed";
- return false;
- }
- } else {
- LOG(INFO) << " Trying BLKZEROOUT...";
- if (ioctl(fd, BLKZEROOUT, &range) == -1) {
- PLOG(ERROR) << " Failed";
- return false;
- }
- }
- }
-
- LOG(INFO) << " Done";
- return true;
-}
-
-static std::unique_ptr<Package> ReadWipePackage(size_t wipe_package_size) {
- if (wipe_package_size == 0) {
- LOG(ERROR) << "wipe_package_size is zero";
- return nullptr;
- }
-
- std::string wipe_package;
- std::string err_str;
- if (!read_wipe_package(&wipe_package, wipe_package_size, &err_str)) {
- PLOG(ERROR) << "Failed to read wipe package" << err_str;
- return nullptr;
- }
-
- return Package::CreateMemoryPackage(
- std::vector<uint8_t>(wipe_package.begin(), wipe_package.end()), nullptr);
-}
-
-// Checks if the wipe package matches expectation. If the check passes, reads the list of
-// partitions to wipe from the package. Checks include
-// 1. verify the package.
-// 2. check metadata (ota-type, pre-device and serial number if having one).
-static bool CheckWipePackage(Package* wipe_package) {
- if (!verify_package(wipe_package, ui)) {
- LOG(ERROR) << "Failed to verify package";
- return false;
- }
-
- ZipArchiveHandle zip = wipe_package->GetZipArchiveHandle();
- if (!zip) {
- LOG(ERROR) << "Failed to get ZipArchiveHandle";
- return false;
- }
-
- std::map<std::string, std::string> metadata;
- if (!ReadMetadataFromPackage(zip, &metadata)) {
- LOG(ERROR) << "Failed to parse metadata in the zip file";
- return false;
- }
-
- return CheckPackageMetadata(metadata, OtaType::BRICK) == 0;
-}
-
-std::vector<std::string> GetWipePartitionList(Package* wipe_package) {
- ZipArchiveHandle zip = wipe_package->GetZipArchiveHandle();
- if (!zip) {
- LOG(ERROR) << "Failed to get ZipArchiveHandle";
- return {};
- }
-
- static constexpr const char* RECOVERY_WIPE_ENTRY_NAME = "recovery.wipe";
-
- std::string partition_list_content;
- ZipString path(RECOVERY_WIPE_ENTRY_NAME);
- ZipEntry entry;
- if (FindEntry(zip, path, &entry) == 0) {
- uint32_t length = entry.uncompressed_length;
- partition_list_content = std::string(length, '\0');
- if (auto err = ExtractToMemory(
- zip, &entry, reinterpret_cast<uint8_t*>(partition_list_content.data()), length);
- err != 0) {
- LOG(ERROR) << "Failed to extract " << RECOVERY_WIPE_ENTRY_NAME << ": "
- << ErrorCodeString(err);
- return {};
- }
- } else {
- LOG(INFO) << "Failed to find " << RECOVERY_WIPE_ENTRY_NAME
- << ", falling back to use the partition list on device.";
-
- static constexpr const char* RECOVERY_WIPE_ON_DEVICE = "/etc/recovery.wipe";
- if (!android::base::ReadFileToString(RECOVERY_WIPE_ON_DEVICE, &partition_list_content)) {
- PLOG(ERROR) << "failed to read \"" << RECOVERY_WIPE_ON_DEVICE << "\"";
- return {};
- }
- }
-
- std::vector<std::string> result;
- std::vector<std::string> lines = android::base::Split(partition_list_content, "\n");
- for (const std::string& line : lines) {
- std::string partition = android::base::Trim(line);
- // Ignore '#' comment or empty lines.
- if (android::base::StartsWith(partition, "#") || partition.empty()) {
- continue;
- }
- result.push_back(line);
- }
-
- return result;
-}
-
-// Wipes the current A/B device, with a secure wipe of all the partitions in RECOVERY_WIPE.
-static bool wipe_ab_device(size_t wipe_package_size) {
- ui->SetBackground(RecoveryUI::ERASING);
- ui->SetProgressType(RecoveryUI::INDETERMINATE);
-
- auto wipe_package = ReadWipePackage(wipe_package_size);
- if (!wipe_package) {
- LOG(ERROR) << "Failed to open wipe package";
- return false;
- }
-
- if (!CheckWipePackage(wipe_package.get())) {
- LOG(ERROR) << "Failed to verify wipe package";
- return false;
- }
-
- auto partition_list = GetWipePartitionList(wipe_package.get());
- if (partition_list.empty()) {
- LOG(ERROR) << "Empty wipe ab partition list";
- return false;
- }
-
- for (const auto& partition : partition_list) {
- // Proceed anyway even if it fails to wipe some partition.
- secure_wipe_partition(partition);
- }
- return true;
-}
-
static void choose_recovery_file(Device* device) {
std::vector<std::string> entries;
if (has_cache) {
@@ -934,7 +773,7 @@
status = INSTALL_ERROR;
}
} else if (should_wipe_ab) {
- if (!wipe_ab_device(wipe_package_size)) {
+ if (!WipeAbDevice(device, wipe_package_size)) {
status = INSTALL_ERROR;
}
} else if (sideload) {