4a335829da
mke2fs tool takes a filename and has its own open function to handle output file. Change fastboot in preparation to switch from make_ext4 to mke2fs. Test: fastboot format:ext4 userdata Bug: 35219933 Change-Id: I7a31cb215f443a4a7cb0bfc23ec28c121a6101e6
82 lines
2.7 KiB
C++
82 lines
2.7 KiB
C++
#include "fs.h"
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#include "fastboot.h"
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#include "make_f2fs.h"
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#include <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <android-base/unique_fd.h>
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#include <ext4_utils/make_ext4fs.h>
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#include <sparse/sparse.h>
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using android::base::unique_fd;
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static int generate_ext4_image(const char* fileName, long long partSize, const std::string& initial_dir,
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unsigned eraseBlkSize, unsigned logicalBlkSize)
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{
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unique_fd fd(open(fileName, O_CREAT | O_RDWR | O_TRUNC, S_IRUSR | S_IWUSR));
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if (fd == -1) {
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fprintf(stderr, "Unable to open output file for EXT4 filesystem: %s\n", strerror(errno));
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return -1;
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}
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if (initial_dir.empty()) {
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make_ext4fs_sparse_fd_align(fd, partSize, NULL, NULL, eraseBlkSize, logicalBlkSize);
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} else {
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make_ext4fs_sparse_fd_directory_align(fd, partSize, NULL, NULL, initial_dir.c_str(),
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eraseBlkSize, logicalBlkSize);
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}
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return 0;
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}
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#ifdef USE_F2FS
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static int generate_f2fs_image(const char* fileName, long long partSize, const std::string& initial_dir,
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unsigned /* unused */, unsigned /* unused */)
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{
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if (!initial_dir.empty()) {
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fprintf(stderr, "Unable to set initial directory on F2FS filesystem: %s\n", strerror(errno));
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return -1;
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}
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unique_fd fd(open(fileName, O_CREAT | O_RDWR | O_TRUNC, S_IRUSR | S_IWUSR));
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if (fd == -1) {
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fprintf(stderr, "Unable to open output file for F2FS filesystem: %s\n", strerror(errno));
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return -1;
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}
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return make_f2fs_sparse_fd(fd, partSize, NULL, NULL);
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}
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#endif
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static const struct fs_generator {
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const char* fs_type; //must match what fastboot reports for partition type
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//returns 0 or error value
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int (*generate)(const char* fileName, long long partSize, const std::string& initial_dir,
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unsigned eraseBlkSize, unsigned logicalBlkSize);
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} generators[] = {
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{ "ext4", generate_ext4_image},
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#ifdef USE_F2FS
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{ "f2fs", generate_f2fs_image},
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#endif
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};
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const struct fs_generator* fs_get_generator(const std::string& fs_type) {
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for (size_t i = 0; i < sizeof(generators) / sizeof(*generators); i++) {
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if (fs_type == generators[i].fs_type) {
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return generators + i;
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}
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}
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return nullptr;
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}
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int fs_generator_generate(const struct fs_generator* gen, const char* fileName, long long partSize,
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const std::string& initial_dir, unsigned eraseBlkSize, unsigned logicalBlkSize)
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{
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return gen->generate(fileName, partSize, initial_dir, eraseBlkSize, logicalBlkSize);
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}
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