Snap for 12305894 from b5fa24ed68f6dbc98905800959e60259eada61ff to 24Q4-release (32b6e144) · Commits · e / os / android_system_core

fs_mgr/fs_mgr.cpp

+18 −46

Original line number	Original line	Diff line number	Diff line
	@@ -38,8 +38,10 @@

	#include <array>		#include <array>
	#include <chrono>		#include <chrono>
			#include <functional>
	#include <map>		#include <map>
	#include <memory>		#include <memory>
			#include <numeric>
	#include <string>		#include <string>
	#include <string_view>		#include <string_view>
	#include <thread>		#include <thread>
	@@ -64,7 +66,6 @@
	#include <fs_mgr/file_wait.h>		#include <fs_mgr/file_wait.h>
	#include <fs_mgr_overlayfs.h>		#include <fs_mgr_overlayfs.h>
	#include <fscrypt/fscrypt.h>		#include <fscrypt/fscrypt.h>
	#include <fstab/fstab.h>
	#include <libdm/dm.h>		#include <libdm/dm.h>
	#include <libdm/loop_control.h>		#include <libdm/loop_control.h>
	#include <liblp/metadata_format.h>		#include <liblp/metadata_format.h>
	@@ -137,8 +138,8 @@ enum FsStatFlags {
	static void log_fs_stat(const std::string& blk_device, int fs_stat) {		static void log_fs_stat(const std::string& blk_device, int fs_stat) {
	std::string msg =		std::string msg =
	android::base::StringPrintf("\nfs_stat,%s,0x%x\n", blk_device.c_str(), fs_stat);		android::base::StringPrintf("\nfs_stat,%s,0x%x\n", blk_device.c_str(), fs_stat);
	android::base::unique_fd fd(TEMP_FAILURE_RETRY(		android::base::unique_fd fd(TEMP_FAILURE_RETRY(open(FSCK_LOG_FILE, O_WRONLY \| O_CLOEXEC \|
	open(FSCK_LOG_FILE, O_WRONLY \| O_CLOEXEC \| O_APPEND \| O_CREAT, 0664)));		O_APPEND \| O_CREAT, 0664)));
	if (fd == -1 \|\| !android::base::WriteStringToFd(msg, fd)) {		if (fd == -1 \|\| !android::base::WriteStringToFd(msg, fd)) {
	LWARNING << __FUNCTION__ << "() cannot log " << msg;		LWARNING << __FUNCTION__ << "() cannot log " << msg;
	}		}
	@@ -1429,34 +1430,6 @@ bool WasMetadataEncryptionInterrupted(const FstabEntry& entry) {
	return access(fs_mgr_metadata_encryption_in_progress_file_name(entry).c_str(), R_OK) == 0;		return access(fs_mgr_metadata_encryption_in_progress_file_name(entry).c_str(), R_OK) == 0;
	}		}

	FstabEntry* LocateFormattableEntry(FstabEntry* const begin, FstabEntry* const end) {
	const bool dev_option_enabled =
	android::base::GetBoolProperty("ro.product.build.16k_page.enabled", false);
	FstabEntry* f2fs_entry = nullptr;
	for (auto iter = begin; iter->blk_device == begin->blk_device && iter < end; iter++) {
	if (iter->fs_mgr_flags.formattable) {
	if (getpagesize() != 4096 && is_f2fs(iter->fs_type) && dev_option_enabled) {
	f2fs_entry = iter;
	continue;
	}
	if (f2fs_entry) {
	LOG(INFO) << "Skipping F2FS format for block device " << iter->blk_device << " @ "
	<< iter->mount_point
	<< " in non-4K mode for dev option enabled devices, "
	"as these devices need to toggle between 4K/16K mode, and F2FS does "
	"not support page_size != block_size configuration.";
	}
	return iter;
	}
	}
	if (f2fs_entry) {
	LOG(INFO) << "Using F2FS for " << f2fs_entry->blk_device << " @ " << f2fs_entry->mount_point
	<< " even though we are in non-4K mode. Device might require a data wipe after "
	"going back to 4K mode, as F2FS does not support page_size != block_size";
	}
	return f2fs_entry;
	}

	// When multiple fstab records share the same mount_point, it will try to mount each		// When multiple fstab records share the same mount_point, it will try to mount each
	// one in turn, and ignore any duplicates after a first successful mount.		// one in turn, and ignore any duplicates after a first successful mount.
	// Returns -1 on error, and FS_MGR_MNTALL_* otherwise.		// Returns -1 on error, and FS_MGR_MNTALL_* otherwise.
	@@ -1567,8 +1540,8 @@ int fs_mgr_mount_all(Fstab* fstab, int mount_mode) {
	}		}
	}		}

	int last_idx_inspected = -1;		int last_idx_inspected;
	const int top_idx = i;		int top_idx = i;
	int attempted_idx = -1;		int attempted_idx = -1;

	bool encryption_interrupted = WasMetadataEncryptionInterrupted(current_entry);		bool encryption_interrupted = WasMetadataEncryptionInterrupted(current_entry);
	@@ -1618,8 +1591,7 @@ int fs_mgr_mount_all(Fstab* fstab, int mount_mode) {
	// Success! Go get the next one.		// Success! Go get the next one.
	continue;		continue;
	}		}
	auto formattable_entry =
	LocateFormattableEntry(fstab->data() + top_idx, fstab->data() + fstab->size());
	// Mounting failed, understand why and retry.		// Mounting failed, understand why and retry.
	wiped = partition_wiped(current_entry.blk_device.c_str());		wiped = partition_wiped(current_entry.blk_device.c_str());
	if (mount_errno != EBUSY && mount_errno != EACCES &&		if (mount_errno != EBUSY && mount_errno != EACCES &&
	@@ -1647,12 +1619,12 @@ int fs_mgr_mount_all(Fstab* fstab, int mount_mode) {
	encryptable = FS_MGR_MNTALL_DEV_IS_METADATA_ENCRYPTED;		encryptable = FS_MGR_MNTALL_DEV_IS_METADATA_ENCRYPTED;
	set_type_property(encryptable);		set_type_property(encryptable);

	if (!call_vdc({"cryptfs", "encryptFstab", formattable_entry->blk_device,		if (!call_vdc({"cryptfs", "encryptFstab", current_entry.blk_device,
	formattable_entry->mount_point, "true" /* shouldFormat */,		current_entry.mount_point, "true" /* shouldFormat */,
	formattable_entry->fs_type,		current_entry.fs_type,
	formattable_entry->fs_mgr_flags.is_zoned ? "true" : "false",		current_entry.fs_mgr_flags.is_zoned ? "true" : "false",
	std::to_string(formattable_entry->length),		std::to_string(current_entry.length),
	android::base::Join(formattable_entry->user_devices, ' ')},		android::base::Join(current_entry.user_devices, ' ')},
	nullptr)) {		nullptr)) {
	LERROR << "Encryption failed";		LERROR << "Encryption failed";
	} else {		} else {
	@@ -1661,7 +1633,7 @@ int fs_mgr_mount_all(Fstab* fstab, int mount_mode) {
	}		}
	}		}

	if (fs_mgr_do_format(*formattable_entry) == 0) {		if (fs_mgr_do_format(current_entry) == 0) {
	// Let's replay the mount actions.		// Let's replay the mount actions.
	i = top_idx - 1;		i = top_idx - 1;
	continue;		continue;