diff options
Diffstat (limited to 'uncrypt')
| -rw-r--r-- | uncrypt/Android.bp | 39 | ||||
| -rw-r--r-- | uncrypt/Android.mk | 32 | ||||
| -rw-r--r-- | uncrypt/uncrypt.cpp | 40 |
3 files changed, 68 insertions, 43 deletions
diff --git a/uncrypt/Android.bp b/uncrypt/Android.bp new file mode 100644 index 000000000..aa56d2f74 --- /dev/null +++ b/uncrypt/Android.bp @@ -0,0 +1,39 @@ +// Copyright (C) 2017 The Android Open Source Project +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +cc_binary { + name: "uncrypt", + + srcs: [ + "uncrypt.cpp", + ], + + cflags: [ + "-Wall", + "-Werror", + ], + + static_libs: [ + "libbootloader_message", + "libotautil", + "libfs_mgr", + "libbase", + "libcutils", + "liblog", + ], + + init_rc: [ + "uncrypt.rc", + ], +} diff --git a/uncrypt/Android.mk b/uncrypt/Android.mk deleted file mode 100644 index 59084b0bb..000000000 --- a/uncrypt/Android.mk +++ /dev/null @@ -1,32 +0,0 @@ -# Copyright (C) 2014 The Android Open Source Project -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# http://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. - -LOCAL_PATH := $(call my-dir) - -include $(CLEAR_VARS) - -LOCAL_CLANG := true -LOCAL_SRC_FILES := uncrypt.cpp -LOCAL_C_INCLUDES := $(LOCAL_PATH)/.. -LOCAL_MODULE := uncrypt -LOCAL_STATIC_LIBRARIES := \ - libbootloader_message \ - libbase \ - liblog \ - libfs_mgr \ - libcutils -LOCAL_CFLAGS := -Werror -LOCAL_INIT_RC := uncrypt.rc - -include $(BUILD_EXECUTABLE) diff --git a/uncrypt/uncrypt.cpp b/uncrypt/uncrypt.cpp index ad3bdce7a..bb43c2c4a 100644 --- a/uncrypt/uncrypt.cpp +++ b/uncrypt/uncrypt.cpp @@ -116,7 +116,7 @@ #include <cutils/sockets.h> #include <fs_mgr.h> -#include "error_code.h" +#include "otautil/error_code.h" static constexpr int WINDOW_SIZE = 5; static constexpr int FIBMAP_RETRY_LIMIT = 3; @@ -172,10 +172,14 @@ static struct fstab* read_fstab() { return fstab; } -static const char* find_block_device(const char* path, bool* encryptable, bool* encrypted) { +static const char* find_block_device(const char* path, bool* encryptable, bool* encrypted, bool *f2fs_fs) { // Look for a volume whose mount point is the prefix of path and // return its block device. Set encrypted if it's currently // encrypted. + + // ensure f2fs_fs is set to 0 first. + if (f2fs_fs) + *f2fs_fs = false; for (int i = 0; i < fstab->num_entries; ++i) { struct fstab_rec* v = &fstab->recs[i]; if (!v->mount_point) { @@ -192,6 +196,8 @@ static const char* find_block_device(const char* path, bool* encryptable, bool* *encrypted = true; } } + if (f2fs_fs && strcmp(v->fs_type, "f2fs") == 0) + *f2fs_fs = true; return v->blk_device; } } @@ -244,7 +250,7 @@ static int retry_fibmap(const int fd, const char* name, int* block, const int he } static int produce_block_map(const char* path, const char* map_file, const char* blk_dev, - bool encrypted, int socket) { + bool encrypted, bool f2fs_fs, int socket) { std::string err; if (!android::base::RemoveFileIfExists(map_file, &err)) { LOG(ERROR) << "failed to remove the existing map file " << map_file << ": " << err; @@ -307,6 +313,17 @@ static int produce_block_map(const char* path, const char* map_file, const char* } } +#ifndef F2FS_IOC_SET_DONTMOVE +#ifndef F2FS_IOCTL_MAGIC +#define F2FS_IOCTL_MAGIC 0xf5 +#endif +#define F2FS_IOC_SET_DONTMOVE _IO(F2FS_IOCTL_MAGIC, 13) +#endif + if (f2fs_fs && ioctl(fd, F2FS_IOC_SET_DONTMOVE) < 0) { + PLOG(ERROR) << "Failed to set non-movable file for f2fs: " << path << " on " << blk_dev; + return kUncryptIoctlError; + } + off64_t pos = 0; int last_progress = 0; while (pos < sb.st_size) { @@ -448,20 +465,21 @@ static int produce_block_map(const char* path, const char* map_file, const char* static int uncrypt(const char* input_path, const char* map_file, const int socket) { LOG(INFO) << "update package is \"" << input_path << "\""; - // Turn the name of the file we're supposed to convert into an - // absolute path, so we can find what filesystem it's on. + // Turn the name of the file we're supposed to convert into an absolute path, so we can find + // what filesystem it's on. char path[PATH_MAX+1]; - if (realpath(input_path, path) == NULL) { + if (realpath(input_path, path) == nullptr) { PLOG(ERROR) << "failed to convert \"" << input_path << "\" to absolute path"; - return 1; + return kUncryptRealpathFindError; } bool encryptable; bool encrypted; - const char* blk_dev = find_block_device(path, &encryptable, &encrypted); - if (blk_dev == NULL) { + bool f2fs_fs; + const char* blk_dev = find_block_device(path, &encryptable, &encrypted, &f2fs_fs); + if (blk_dev == nullptr) { LOG(ERROR) << "failed to find block device for " << path; - return 1; + return kUncryptBlockDeviceFindError; } // If the filesystem it's on isn't encrypted, we only produce the @@ -479,7 +497,7 @@ static int uncrypt(const char* input_path, const char* map_file, const int socke // and /sdcard we leave the file alone. if (strncmp(path, "/data/", 6) == 0) { LOG(INFO) << "writing block map " << map_file; - return produce_block_map(path, map_file, blk_dev, encrypted, socket); + return produce_block_map(path, map_file, blk_dev, encrypted, f2fs_fs, socket); } return 0; |