Merge "Move some small users of fstab to new C++ Fstab"
diff --git a/bootloader_message/bootloader_message.cpp b/bootloader_message/bootloader_message.cpp
index aaeffdc..b933cbf 100644
--- a/bootloader_message/bootloader_message.cpp
+++ b/bootloader_message/bootloader_message.cpp
@@ -27,21 +27,22 @@
#include <android-base/properties.h>
#include <android-base/stringprintf.h>
#include <android-base/unique_fd.h>
-#include <fs_mgr.h>
+#include <fstab/fstab.h>
static std::string get_misc_blk_device(std::string* err) {
- std::unique_ptr<fstab, decltype(&fs_mgr_free_fstab)> fstab(fs_mgr_read_fstab_default(),
- fs_mgr_free_fstab);
- if (!fstab) {
+ Fstab fstab;
+ if (!ReadDefaultFstab(&fstab)) {
*err = "failed to read default fstab";
return "";
}
- fstab_rec* record = fs_mgr_get_entry_for_mount_point(fstab.get(), "/misc");
- if (record == nullptr) {
- *err = "failed to find /misc partition";
- return "";
+ for (const auto& entry : fstab) {
+ if (entry.mount_point == "/misc") {
+ return entry.blk_device;
+ }
}
- return record->blk_device;
+
+ *err = "failed to find /misc partition";
+ return "";
}
// In recovery mode, recovery can get started and try to access the misc
diff --git a/uncrypt/uncrypt.cpp b/uncrypt/uncrypt.cpp
index d1970e5..4244af2 100644
--- a/uncrypt/uncrypt.cpp
+++ b/uncrypt/uncrypt.cpp
@@ -115,6 +115,7 @@
#include <cutils/android_reboot.h>
#include <cutils/sockets.h>
#include <fs_mgr.h>
+#include <fstab/fstab.h>
#include "otautil/error_code.h"
@@ -136,7 +137,7 @@
static const std::string UNCRYPT_STATUS = "/cache/recovery/uncrypt_status";
static const std::string UNCRYPT_SOCKET = "uncrypt";
-static struct fstab* fstab = nullptr;
+static Fstab fstab;
static int write_at_offset(unsigned char* buffer, size_t size, int wfd, off64_t offset) {
if (TEMP_FAILURE_RETRY(lseek64(wfd, offset, SEEK_SET)) == -1) {
@@ -162,18 +163,8 @@
}
}
-static struct fstab* read_fstab() {
- fstab = fs_mgr_read_fstab_default();
- if (!fstab) {
- LOG(ERROR) << "failed to read default fstab";
- return NULL;
- }
-
- return fstab;
-}
-
-static const char* find_block_device(const char* path, bool* encryptable,
- bool* encrypted, bool* f2fs_fs) {
+static std::string 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.
@@ -181,30 +172,29 @@
// ensure f2fs_fs is set to false first.
*f2fs_fs = false;
- for (int i = 0; i < fstab->num_entries; ++i) {
- struct fstab_rec* v = &fstab->recs[i];
- if (!v->mount_point) {
+ for (const auto& entry : fstab) {
+ if (entry.mount_point.empty()) {
continue;
}
- int len = strlen(v->mount_point);
- if (strncmp(path, v->mount_point, len) == 0 &&
+ auto len = entry.mount_point.size();
+ if (android::base::StartsWith(path, entry.mount_point) &&
(path[len] == '/' || path[len] == 0)) {
*encrypted = false;
*encryptable = false;
- if (fs_mgr_is_encryptable(v) || fs_mgr_is_file_encrypted(v)) {
+ if (entry.is_encryptable() || entry.fs_mgr_flags.file_encryption) {
*encryptable = true;
if (android::base::GetProperty("ro.crypto.state", "") == "encrypted") {
*encrypted = true;
}
}
- if (strcmp(v->fs_type, "f2fs") == 0) {
+ if (entry.fs_type == "f2fs") {
*f2fs_fs = true;
}
- return v->blk_device;
+ return entry.blk_device;
}
}
- return NULL;
+ return "";
}
static bool write_status_to_socket(int status, int socket) {
@@ -493,8 +483,8 @@
bool encryptable;
bool encrypted;
bool f2fs_fs;
- const char* blk_dev = find_block_device(path, &encryptable, &encrypted, &f2fs_fs);
- if (blk_dev == nullptr) {
+ const std::string blk_dev = find_block_device(path, &encryptable, &encrypted, &f2fs_fs);
+ if (blk_dev.empty()) {
LOG(ERROR) << "failed to find block device for " << path;
return kUncryptBlockDeviceFindError;
}
@@ -514,7 +504,7 @@
// 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, f2fs_fs, socket);
+ return produce_block_map(path, map_file, blk_dev.c_str(), encrypted, f2fs_fs, socket);
}
return 0;
@@ -654,7 +644,8 @@
return 2;
}
- if ((fstab = read_fstab()) == nullptr) {
+ if (!ReadDefaultFstab(&fstab)) {
+ LOG(ERROR) << "failed to read default fstab";
log_uncrypt_error_code(kUncryptFstabReadError);
return 1;
}
