recovery: replace make_ext4 with e2fsprogs
Execute mke2fs to create empty ext4 filesystem.
Execute e2fsdroid to add files to filesystem.
Test: enter recovery mode and wipe data
Bug: 35219933
Change-Id: I10a9f4c1f4754ad864b2df45b1f879180ab33876
Merged-In: I10a9f4c1f4754ad864b2df45b1f879180ab33876
diff --git a/Android.mk b/Android.mk
index 5f3a8a4..cfd55a7 100644
--- a/Android.mk
+++ b/Android.mk
@@ -83,9 +83,11 @@
LOCAL_FORCE_STATIC_EXECUTABLE := true
+LOCAL_REQUIRED_MODULES := e2fsdroid_static mke2fs_static mke2fs.conf
+
ifeq ($(TARGET_USERIMAGES_USE_F2FS),true)
ifeq ($(HOST_OS),linux)
-LOCAL_REQUIRED_MODULES := mkfs.f2fs
+LOCAL_REQUIRED_MODULES += mkfs.f2fs
endif
endif
@@ -112,6 +114,7 @@
libverifier \
libbatterymonitor \
libbootloader_message \
+ libfs_mgr \
libext4_utils \
libsparse \
libziparchive \
@@ -122,7 +125,6 @@
libfusesideload \
libminui \
libpng \
- libfs_mgr \
libcrypto_utils \
libcrypto \
libvintf_recovery \
@@ -151,7 +153,7 @@
endif
ifeq ($(BOARD_CACHEIMAGE_PARTITION_SIZE),)
-LOCAL_REQUIRED_MODULES := recovery-persist recovery-refresh
+LOCAL_REQUIRED_MODULES += recovery-persist recovery-refresh
endif
include $(BUILD_EXECUTABLE)
diff --git a/roots.cpp b/roots.cpp
index 9b42702..e98dfd4 100644
--- a/roots.cpp
+++ b/roots.cpp
@@ -27,7 +27,8 @@
#include <fcntl.h>
#include <android-base/logging.h>
-#include <ext4_utils/make_ext4fs.h>
+#include <android-base/properties.h>
+#include <android-base/stringprintf.h>
#include <ext4_utils/wipe.h>
#include <fs_mgr.h>
@@ -215,11 +216,60 @@
}
int result;
if (strcmp(v->fs_type, "ext4") == 0) {
- if (v->erase_blk_size != 0 && v->logical_blk_size != 0) {
- result = make_ext4fs_directory_align(v->blk_device, length, volume, sehandle,
- directory, v->erase_blk_size, v->logical_blk_size);
- } else {
- result = make_ext4fs_directory(v->blk_device, length, volume, sehandle, directory);
+ static constexpr int block_size = 4096;
+ int raid_stride = v->logical_blk_size / block_size;
+ int raid_stripe_width = v->erase_blk_size / block_size;
+
+ // stride should be the max of 8kb and logical block size
+ if (v->logical_blk_size != 0 && v->logical_blk_size < 8192) {
+ raid_stride = 8192 / block_size;
+ }
+
+ const char* mke2fs_argv[] = { "/sbin/mke2fs_static",
+ "-F",
+ "-t",
+ "ext4",
+ "-b",
+ nullptr,
+ nullptr,
+ nullptr,
+ nullptr,
+ nullptr,
+ nullptr };
+
+ int i = 5;
+ std::string block_size_str = std::to_string(block_size);
+ mke2fs_argv[i++] = block_size_str.c_str();
+
+ std::string ext_args;
+ if (v->erase_blk_size != 0 && v->logical_blk_size != 0) {
+ ext_args = android::base::StringPrintf("stride=%d,stripe-width=%d", raid_stride,
+ raid_stripe_width);
+ mke2fs_argv[i++] = "-E";
+ mke2fs_argv[i++] = ext_args.c_str();
+ }
+
+ mke2fs_argv[i++] = v->blk_device;
+
+ std::string size_str = std::to_string(length / block_size);
+ if (length != 0) {
+ mke2fs_argv[i++] = size_str.c_str();
+ }
+
+ result = exec_cmd(mke2fs_argv[0], const_cast<char**>(mke2fs_argv));
+ if (result == 0 && directory != nullptr) {
+ const char* e2fsdroid_argv[] = { "/sbin/e2fsdroid_static",
+ "-e",
+ "-S",
+ "/file_contexts",
+ "-f",
+ directory,
+ "-a",
+ volume,
+ v->blk_device,
+ nullptr };
+
+ result = exec_cmd(e2fsdroid_argv[0], const_cast<char**>(e2fsdroid_argv));
}
} else { /* Has to be f2fs because we checked earlier. */
if (v->key_loc != NULL && strcmp(v->key_loc, "footer") == 0 && length < 0) {
diff --git a/updater/install.cpp b/updater/install.cpp
index ff79edc..c9a3a07 100644
--- a/updater/install.cpp
+++ b/updater/install.cpp
@@ -302,9 +302,32 @@
}
if (fs_type == "ext4") {
- int status = make_ext4fs(location.c_str(), size, mount_point.c_str(), sehandle);
+ const char* mke2fs_argv[] = { "/sbin/mke2fs_static", "-t", "ext4", "-b", "4096",
+ location.c_str(), nullptr, nullptr };
+ std::string size_str;
+ if (size != 0) {
+ size_str = std::to_string(size / 4096LL);
+ mke2fs_argv[6] = size_str.c_str();
+ }
+
+ int status = exec_cmd(mke2fs_argv[0], const_cast<char**>(mke2fs_argv));
if (status != 0) {
- LOG(ERROR) << name << ": make_ext4fs failed (" << status << ") on " << location;
+ LOG(WARNING) << name << ": mke2fs failed (" << status << ") on " << location
+ << ", falling back to make_ext4fs";
+ status = make_ext4fs(location.c_str(), size, mount_point.c_str(), sehandle);
+ if (status != 0) {
+ LOG(ERROR) << name << ": make_ext4fs failed (" << status << ") on " << location;
+ return StringValue("");
+ }
+ return StringValue(location);
+ }
+
+ const char* e2fsdroid_argv[] = { "/sbin/e2fsdroid_static", "-e", "-S",
+ "/file_contexts", "-a", mount_point.c_str(),
+ location.c_str(), nullptr };
+ status = exec_cmd(e2fsdroid_argv[0], const_cast<char**>(e2fsdroid_argv));
+ if (status != 0) {
+ LOG(ERROR) << name << ": e2fsdroid failed (" << status << ") on " << location;
return StringValue("");
}
return StringValue(location);