1 files changed, 4 insertions, 165 deletions

diff --git a/recovery.cpp b/recovery.cpp
index f9b3bfc0b..30d8fbfa4 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 @@ static InstallResult prompt_and_wipe_data(Device* device) {
   }
 }
 
-// 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 @@ Device::BuiltinAction start_recovery(Device* device, const std::vector<std::stri
       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) {