| // Copyright 2021 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "f2fs.h" |
| #include "src/lib/uuid/uuid.h" |
| #include <codecvt> |
| |
| namespace f2fs { |
| |
| const char *kMediaExtList[] = {"jpg", "gif", "png", "avi", "divx", "mp4", "mp3", "3gp", |
| "wmv", "wma", "mpeg", "mkv", "mov", "asx", "asf", "wmx", |
| "svi", "wvx", "wm", "mpg", "mpe", "rm", "ogg"}; |
| |
| F2fsMkfs::F2fsMkfs(std::unique_ptr<f2fs::Bcache> bc, const MkfsOptions &mkfs_options) |
| : bc_(std::move(bc)), mkfs_options_(mkfs_options) {} |
| |
| zx_status_t F2fsMkfs::Mkfs() { |
| char extension_list[] = ""; |
| |
| #ifdef F2FS_BU_DEBUG |
| // TODO: lable, extention list |
| std::cout << "f2fs mkfs heap-based allocation = " << mkfs_options_.heap_based_allocation |
| << std::endl; |
| std::cout << "f2fs mkfs overprovision ratio = " << mkfs_options_.overprovision_ratio << std::endl; |
| std::cout << "f2fs mkfs # of segments per section = " << mkfs_options_.num_of_seg_per_sec |
| << std::endl; |
| std::cout << "f2fs mkfs overprovision ratio = " << mkfs_options_.num_of_sec_per_zone << std::endl; |
| #endif |
| |
| // TODO: parse mkfs options |
| params_.extension_list = extension_list; |
| |
| InitGlobalParameters(); |
| |
| if (GetDeviceInfo() < 0) |
| return -1; |
| |
| if (FormatDevice() < 0) |
| return -1; |
| |
| printf("Info: format successful\n"); |
| |
| return ZX_OK; |
| } |
| |
| /* |
| * String must be less than 16 characters. |
| */ |
| void F2fsMkfs::AsciiToUnicode(const std::string &in_string, std::u16string *out_string) { |
| |
| std::wstring_convert<std::codecvt_utf8_utf16<char16_t>, char16_t> cvt16; |
| |
| out_string->assign(cvt16.from_bytes(in_string)); |
| } |
| |
| void F2fsMkfs::InitGlobalParameters() { |
| static_assert(__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__); |
| |
| params_.sector_size = kDefaultSectorSize; |
| params_.sectors_per_blk = kDefaultSectorsPerBlock; |
| params_.blks_per_seg = kDefaultBlocksPerSegment; |
| params_.reserved_segments = 20; /* calculated by overprovision ratio */ |
| params_.overprovision = 5; |
| params_.segs_per_sec = 1; |
| params_.secs_per_zone = 1; |
| params_.heap = 1; |
| memset(params_.vol_label, 0, sizeof(params_.vol_label)); |
| |
| params_.vol_label[0] = 'F'; |
| params_.vol_label[1] = '2'; |
| params_.vol_label[2] = 'F'; |
| params_.vol_label[3] = 'S'; |
| params_.vol_label[4] = '\0'; |
| params_.device_name = nullptr; |
| } |
| |
| inline int F2fsMkfs::F2fsSetBit(uint32_t nr, uint8_t *addr) { |
| int mask; |
| int ret; |
| |
| addr += (nr >> 3); |
| mask = 1 << (7 - (nr & 0x07)); |
| ret = mask & *addr; |
| *addr |= mask; |
| return ret; |
| } |
| |
| int8_t F2fsMkfs::LogBase2(uint32_t num) { |
| int8_t ret = 0; |
| |
| if (num <= 0 || (num & (num - 1)) != 0) { |
| return -1; |
| } |
| |
| while (num >>= 1) { |
| ret++; |
| } |
| |
| return ret; |
| } |
| |
| #if 0 // porting needed |
| void F2fsMkfs::f2fs_usage(void) |
| { |
| fprintf(stderr, "Usage: f2fs_format [options] device\n"); |
| fprintf(stderr, "[options]\n"); |
| fprintf(stderr, "-l label\n"); |
| fprintf(stderr, "-a heap-based allocation [default:1]\n"); |
| fprintf(stderr, "-o overprovision ratio [default:5]\n"); |
| fprintf(stderr, "-s # of segments per section [default:1]\n"); |
| fprintf(stderr, "-z # of sections per zone [default:1]\n"); |
| fprintf(stderr, "-e [extension list] e.g. \"mp3,gif,mov\"\n"); |
| exit(1); |
| } |
| #endif |
| |
| zx_status_t F2fsMkfs::GetDeviceInfo() { |
| fuchsia_hardware_block_BlockInfo info; |
| |
| bc_->device()->BlockGetInfo(&info); |
| |
| ZX_ASSERT(info.block_size == kDefaultSectorSize); |
| |
| params_.sector_size = kDefaultSectorSize; |
| params_.sectors_per_blk = kBlockSize / kDefaultSectorSize; |
| params_.total_sectors = info.block_count; |
| params_.start_sector = kSuperblockStart; |
| |
| if (params_.total_sectors < (kMinVolumeSize / kDefaultSectorSize)) { |
| printf("Error: Min volume size supported is %d\n", kMinVolumeSize); |
| return ZX_ERR_NO_RESOURCES; |
| } |
| |
| return ZX_OK; |
| } |
| |
| void F2fsMkfs::ConfigureExtensionList() { |
| char *ext_str = params_.extension_list; |
| char *ue; |
| int name_len; |
| int i = 0; |
| |
| super_block_.extension_count = 0; |
| memset(super_block_.extension_list, 0, sizeof(super_block_.extension_list)); |
| |
| for (const char *ext : kMediaExtList) { |
| name_len = static_cast<int>(strlen(ext)); |
| memcpy(super_block_.extension_list[i++], ext, name_len); |
| } |
| super_block_.extension_count = i - 1; |
| |
| if (!ext_str) |
| return; |
| |
| /* add user ext list */ |
| ue = strtok(ext_str, ","); |
| while (ue != nullptr) { |
| name_len = static_cast<int>(strlen(ue)); |
| memcpy(super_block_.extension_list[i++], ue, name_len); |
| ue = strtok(nullptr, ","); |
| if (i > kMaxExtension) |
| break; |
| } |
| |
| super_block_.extension_count = i - 1; |
| #if 0 // porting needed |
| // TODO: strdup in f2fs_parse_options |
| // free(params_.extension_list); |
| #endif |
| } |
| |
| zx_status_t F2fsMkfs::WriteToDisk(void *buf, uint64_t offset, size_t length) { |
| zx_status_t status = 0; |
| uint64_t curr_offset = offset; |
| |
| #ifdef F2FS_BU_DEBUG |
| std::cout << std::hex << "writetodeisk: offset= 0x" << offset << " length= 0x" << length |
| << std::endl; |
| #endif |
| |
| if (offset % kBlockSize) { |
| std::cout << std::hex << "block is not aligned: offset = " << offset << " length = " << length |
| << std::endl; |
| return ZX_ERR_INVALID_ARGS; |
| } |
| |
| if (length % kBlockSize) { |
| std::cout << std::hex << "block size is not aligned: offset = " << offset |
| << " length = " << length << std::endl; |
| return ZX_ERR_INVALID_ARGS; |
| } |
| |
| for (uint64_t i = 0; i < length / kBlockSize; i++) { |
| if ((status = bc_->Writeblk((offset / kBlockSize) + i, buf)) != ZX_OK) { |
| std::cout << "mkfs: Failed to write root directory: " << status << std::endl; |
| } |
| |
| curr_offset += kBlockSize; |
| } |
| |
| ZX_ASSERT(curr_offset == offset + length); |
| |
| return status; |
| } |
| |
| zx_status_t F2fsMkfs::PrepareSuperBlock() { |
| uint32_t blk_size_bytes; |
| uint32_t log_sectorsize, log_sectors_per_block; |
| uint32_t log_blocksize, log_blks_per_seg; |
| uint32_t segment_size_bytes, zone_size_bytes; |
| uint32_t sit_segments; |
| uint32_t blocks_for_sit, blocks_for_nat, blocks_for_ssa; |
| uint32_t total_valid_blks_available; |
| uint64_t zone_align_start_offset, diff, total_meta_segments; |
| uint32_t sit_bitmap_size, max_nat_bitmap_size, max_nat_segments; |
| uint32_t total_zones; |
| |
| super_block_.magic = CpuToLe(uint32_t{kF2fsSuperMagic}); |
| super_block_.major_ver = CpuToLe(kMajorVersion); |
| super_block_.minor_ver = CpuToLe(kMinorVersion); |
| |
| log_sectorsize = LogBase2(params_.sector_size); |
| log_sectors_per_block = LogBase2(params_.sectors_per_blk); |
| log_blocksize = log_sectorsize + log_sectors_per_block; |
| log_blks_per_seg = LogBase2(params_.blks_per_seg); |
| |
| super_block_.log_sectorsize = CpuToLe(log_sectorsize); |
| |
| if (log_sectorsize < 0) { |
| printf("\n\tError: Failed to get the sector size: %u!\n", params_.sector_size); |
| return ZX_ERR_INVALID_ARGS; |
| } |
| |
| super_block_.log_sectors_per_block = CpuToLe(log_sectors_per_block); |
| |
| if (log_sectors_per_block < 0) { |
| printf("\n\tError: Failed to get sectors per block: %u!\n", params_.sectors_per_blk); |
| return ZX_ERR_INVALID_ARGS; |
| } |
| |
| super_block_.log_blocksize = CpuToLe(log_blocksize); |
| super_block_.log_blocks_per_seg = CpuToLe(log_blks_per_seg); |
| |
| if (log_blks_per_seg < 0) { |
| printf("\n\tError: Failed to get block per segment: %u!\n", params_.blks_per_seg); |
| return ZX_ERR_INVALID_ARGS; |
| } |
| |
| super_block_.segs_per_sec = CpuToLe(params_.segs_per_sec); |
| super_block_.secs_per_zone = CpuToLe(params_.secs_per_zone); |
| blk_size_bytes = 1 << log_blocksize; |
| segment_size_bytes = blk_size_bytes * params_.blks_per_seg; |
| zone_size_bytes = blk_size_bytes * params_.secs_per_zone * params_.segs_per_sec * |
| params_.blks_per_seg; |
| |
| super_block_.checksum_offset = 0; |
| |
| super_block_.block_count = |
| CpuToLe((params_.total_sectors * kDefaultSectorSize) / blk_size_bytes); |
| |
| zone_align_start_offset = |
| (params_.start_sector * kDefaultSectorSize + 2 * kBlkSize + zone_size_bytes - 1) / |
| zone_size_bytes * zone_size_bytes - |
| params_.start_sector * kDefaultSectorSize; |
| |
| if (params_.start_sector % kDefaultSectorsPerBlock) { |
| printf("WARN: Align start sector number in a unit of pages\n"); |
| printf("\ti.e., start sector: %d, ofs:%d (sectors per page: %d)\n", params_.start_sector, |
| params_.start_sector % kDefaultSectorsPerBlock, kDefaultSectorsPerBlock); |
| } |
| |
| super_block_.segment_count = |
| CpuToLe(((params_.total_sectors * kDefaultSectorSize) - zone_align_start_offset) / |
| segment_size_bytes); |
| |
| super_block_.segment0_blkaddr = CpuToLe(zone_align_start_offset / blk_size_bytes); |
| super_block_.cp_blkaddr = super_block_.segment0_blkaddr; |
| |
| super_block_.segment_count_ckpt = CpuToLe(kNumberOfCheckpointPack); |
| |
| super_block_.sit_blkaddr = |
| CpuToLe(LeToCpu(super_block_.segment0_blkaddr) + |
| (LeToCpu(super_block_.segment_count_ckpt) * (1 << log_blks_per_seg))); |
| |
| blocks_for_sit = |
| (LeToCpu(super_block_.segment_count) + kSitEntryPerBlock - 1) / kSitEntryPerBlock; |
| |
| sit_segments = (blocks_for_sit + params_.blks_per_seg - 1) / params_.blks_per_seg; |
| |
| super_block_.segment_count_sit = CpuToLe(sit_segments * 2); |
| |
| super_block_.nat_blkaddr = |
| CpuToLe(LeToCpu(super_block_.sit_blkaddr) + |
| (LeToCpu(super_block_.segment_count_sit) * params_.blks_per_seg)); |
| |
| total_valid_blks_available = |
| (LeToCpu(super_block_.segment_count) - |
| (LeToCpu(super_block_.segment_count_ckpt) + LeToCpu(super_block_.segment_count_sit))) * |
| params_.blks_per_seg; |
| |
| blocks_for_nat = (total_valid_blks_available + kNatEntryPerBlock - 1) / kNatEntryPerBlock; |
| |
| super_block_.segment_count_nat = |
| CpuToLe((blocks_for_nat + params_.blks_per_seg - 1) / params_.blks_per_seg); |
| /* |
| * The number of node segments should not be exceeded a "Threshold". |
| * This number resizes NAT bitmap area in a CP page. |
| * So the threshold is determined not to overflow one CP page |
| */ |
| sit_bitmap_size = ((LeToCpu(super_block_.segment_count_sit) / 2) << log_blks_per_seg) / 8; |
| max_nat_bitmap_size = 4096 - sizeof(Checkpoint) + 1 - sit_bitmap_size; |
| max_nat_segments = (max_nat_bitmap_size * 8) >> log_blks_per_seg; |
| |
| if (LeToCpu(super_block_.segment_count_nat) > max_nat_segments) |
| super_block_.segment_count_nat = CpuToLe(max_nat_segments); |
| |
| super_block_.segment_count_nat = CpuToLe(LeToCpu(super_block_.segment_count_nat) * 2); |
| |
| super_block_.ssa_blkaddr = |
| CpuToLe(LeToCpu(super_block_.nat_blkaddr) + |
| LeToCpu(super_block_.segment_count_nat) * params_.blks_per_seg); |
| |
| total_valid_blks_available = |
| (LeToCpu(super_block_.segment_count) - |
| (LeToCpu(super_block_.segment_count_ckpt) + LeToCpu(super_block_.segment_count_sit) + |
| LeToCpu(super_block_.segment_count_nat))) * |
| params_.blks_per_seg; |
| |
| blocks_for_ssa = total_valid_blks_available / params_.blks_per_seg + 1; |
| |
| super_block_.segment_count_ssa = |
| CpuToLe((blocks_for_ssa + params_.blks_per_seg - 1) / params_.blks_per_seg); |
| |
| total_meta_segments = |
| LeToCpu(super_block_.segment_count_ckpt) + LeToCpu(super_block_.segment_count_sit) + |
| LeToCpu(super_block_.segment_count_nat) + LeToCpu(super_block_.segment_count_ssa); |
| diff = total_meta_segments % (params_.segs_per_sec * params_.secs_per_zone); |
| if (diff) |
| super_block_.segment_count_ssa = |
| CpuToLe(LeToCpu(super_block_.segment_count_ssa) + |
| (params_.segs_per_sec * params_.secs_per_zone - diff)); |
| |
| super_block_.main_blkaddr = |
| CpuToLe(LeToCpu(super_block_.ssa_blkaddr) + |
| (LeToCpu(super_block_.segment_count_ssa) * params_.blks_per_seg)); |
| |
| super_block_.segment_count_main = CpuToLe( |
| LeToCpu(super_block_.segment_count) - |
| (LeToCpu(super_block_.segment_count_ckpt) + LeToCpu(super_block_.segment_count_sit) + |
| LeToCpu(super_block_.segment_count_nat) + LeToCpu(super_block_.segment_count_ssa))); |
| |
| super_block_.section_count = |
| CpuToLe(LeToCpu(super_block_.segment_count_main) / params_.segs_per_sec); |
| |
| super_block_.segment_count_main = |
| CpuToLe(LeToCpu(super_block_.section_count) * params_.segs_per_sec); |
| |
| if ((LeToCpu(super_block_.segment_count_main) - 2) < params_.reserved_segments) { |
| printf("Error: Device size is not sufficient for F2FS volume, more segment needed =%u", |
| params_.reserved_segments - (LeToCpu(super_block_.segment_count_main) - 2)); |
| return ZX_ERR_NO_SPACE; |
| } |
| |
| memcpy(super_block_.uuid, uuid::Uuid::Generate().bytes(), 16); |
| |
| std::string vol_label(reinterpret_cast<char const*>(params_.vol_label)); |
| std::u16string volume_name; |
| |
| AsciiToUnicode(vol_label, &volume_name); |
| |
| volume_name.copy(reinterpret_cast<char16_t*>(super_block_.volume_name), vol_label.size()); |
| super_block_.volume_name[vol_label.size()] = '\0'; |
| |
| super_block_.node_ino = CpuToLe(uint32_t{1}); |
| super_block_.meta_ino = CpuToLe(uint32_t{2}); |
| super_block_.root_ino = CpuToLe(uint32_t{3}); |
| |
| total_zones = ((LeToCpu(super_block_.segment_count_main) - 1) / params_.segs_per_sec) / |
| params_.secs_per_zone; |
| if (total_zones <= 6) { |
| printf("\n\tError: %d zones: Need more zones by shrinking zone size\n", total_zones); |
| return ZX_ERR_NO_SPACE; |
| } |
| |
| if (params_.heap) { |
| params_.cur_seg[static_cast<int>(CursegType::kCursegHotNode)] = |
| (total_zones - 1) * params_.segs_per_sec * params_.secs_per_zone + |
| ((params_.secs_per_zone - 1) * params_.segs_per_sec); |
| params_.cur_seg[static_cast<int>(CursegType::kCursegWarmNode)] = |
| params_.cur_seg[static_cast<int>(CursegType::kCursegHotNode)] - params_.segs_per_sec * params_.secs_per_zone; |
| params_.cur_seg[static_cast<int>(CursegType::kCursegColdNode)] = |
| params_.cur_seg[static_cast<int>(CursegType::kCursegWarmNode)] - |
| params_.segs_per_sec * params_.secs_per_zone; |
| params_.cur_seg[static_cast<int>(CursegType::kCursegHotData)] = |
| params_.cur_seg[static_cast<int>(CursegType::kCursegColdNode)] - |
| params_.segs_per_sec * params_.secs_per_zone; |
| params_.cur_seg[static_cast<int>(CursegType::kCursegColdData)] = 0; |
| params_.cur_seg[static_cast<int>(CursegType::kCursegWarmData)] = |
| params_.cur_seg[static_cast<int>(CursegType::kCursegColdData)] + |
| params_.segs_per_sec * params_.secs_per_zone; |
| } else { |
| params_.cur_seg[static_cast<int>(CursegType::kCursegHotNode)] = 0; |
| params_.cur_seg[static_cast<int>(CursegType::kCursegWarmNode)] = |
| params_.cur_seg[static_cast<int>(CursegType::kCursegHotNode)] + |
| params_.segs_per_sec * params_.secs_per_zone; |
| params_.cur_seg[static_cast<int>(CursegType::kCursegColdNode)] = |
| params_.cur_seg[static_cast<int>(CursegType::kCursegWarmNode)] + |
| params_.segs_per_sec * params_.secs_per_zone; |
| params_.cur_seg[static_cast<int>(CursegType::kCursegHotData)] = |
| params_.cur_seg[static_cast<int>(CursegType::kCursegColdNode)] + |
| params_.segs_per_sec * params_.secs_per_zone; |
| params_.cur_seg[static_cast<int>(CursegType::kCursegColdData)] = |
| params_.cur_seg[static_cast<int>(CursegType::kCursegHotData)] + |
| params_.segs_per_sec * params_.secs_per_zone; |
| params_.cur_seg[static_cast<int>(CursegType::kCursegWarmData)] = |
| params_.cur_seg[static_cast<int>(CursegType::kCursegColdData)] + |
| params_.segs_per_sec * params_.secs_per_zone; |
| } |
| |
| ConfigureExtensionList(); |
| |
| return 0; |
| } |
| |
| zx_status_t F2fsMkfs::InitSitArea() { |
| uint32_t blk_size_bytes; |
| uint32_t seg_size_bytes; |
| uint32_t index = 0; |
| uint64_t sit_seg_blk_offset = 0; |
| uint8_t *zero_buf = nullptr; |
| zx_status_t ret; |
| |
| blk_size_bytes = 1 << LeToCpu(super_block_.log_blocksize); |
| seg_size_bytes = (1 << LeToCpu(super_block_.log_blocks_per_seg)) * blk_size_bytes; |
| |
| zero_buf = static_cast<uint8_t *>(calloc(sizeof(uint8_t), seg_size_bytes)); |
| if (zero_buf == nullptr) { |
| printf("\n\tError: Calloc Failed for sit_zero_buf!!!\n"); |
| return ZX_ERR_NO_MEMORY; |
| } |
| |
| sit_seg_blk_offset = LeToCpu(super_block_.sit_blkaddr) * blk_size_bytes; |
| |
| for (index = 0; index < (LeToCpu(super_block_.segment_count_sit) / 2); index++) { |
| ret = WriteToDisk(zero_buf, sit_seg_blk_offset, seg_size_bytes); |
| if (ret < 0) { |
| printf("\n\tError: While zeroing out the sit area on disk!!!\n"); |
| return ret; |
| } |
| sit_seg_blk_offset = sit_seg_blk_offset + seg_size_bytes; |
| } |
| |
| free(zero_buf); |
| return ZX_OK; |
| } |
| |
| zx_status_t F2fsMkfs::InitNatArea() { |
| uint32_t blk_size_bytes; |
| uint32_t seg_size_bytes; |
| uint32_t index = 0; |
| uint64_t nat_seg_blk_offset = 0; |
| uint8_t *nat_buf = nullptr; |
| zx_status_t ret; |
| |
| blk_size_bytes = 1 << LeToCpu(super_block_.log_blocksize); |
| seg_size_bytes = (1 << LeToCpu(super_block_.log_blocks_per_seg)) * blk_size_bytes; |
| |
| nat_buf = static_cast<uint8_t *>(calloc(sizeof(uint8_t), seg_size_bytes)); |
| if (nat_buf == nullptr) { |
| printf("\n\tError: Calloc Failed for nat_zero_blk!!!\n"); |
| return ZX_ERR_NO_MEMORY; |
| } |
| |
| nat_seg_blk_offset = LeToCpu(super_block_.nat_blkaddr) * blk_size_bytes; |
| |
| for (index = 0; index < (LeToCpu(super_block_.segment_count_nat) / 2); index++) { |
| ret = WriteToDisk(nat_buf, nat_seg_blk_offset, seg_size_bytes); |
| if (ret < 0) { |
| printf("\n\tError: While zeroing out the nat area on disk!!!\n"); |
| return ret; |
| } |
| nat_seg_blk_offset = nat_seg_blk_offset + (2 * seg_size_bytes); |
| } |
| |
| free(nat_buf); |
| return ZX_OK; |
| } |
| |
| zx_status_t F2fsMkfs::WriteCheckPointPack() { |
| Checkpoint *ckp = nullptr; |
| SummaryBlock *sum = nullptr; |
| uint32_t blk_size_bytes; |
| uint64_t cp_seg_blk_offset = 0; |
| uint32_t crc = 0; |
| zx_status_t ret; |
| int i; |
| |
| ckp = static_cast<Checkpoint *>(calloc(kBlkSize, 1)); |
| if (ckp == nullptr) { |
| printf("\n\tError: Calloc Failed for Checkpoint!!!\n"); |
| return ZX_ERR_NO_MEMORY; |
| } |
| |
| sum = static_cast<SummaryBlock *>(calloc(kBlkSize, 1)); |
| if (sum == nullptr) { |
| printf("\n\tError: Calloc Failed for summay_node!!!\n"); |
| return ZX_ERR_NO_MEMORY; |
| } |
| |
| /* 1. cp page 1 of checkpoint pack 1 */ |
| ckp->checkpoint_ver = 1; |
| ckp->cur_node_segno[0] = CpuToLe(params_.cur_seg[static_cast<int>(CursegType::kCursegHotNode)]); |
| ckp->cur_node_segno[1] = CpuToLe(params_.cur_seg[static_cast<int>(CursegType::kCursegWarmNode)]); |
| ckp->cur_node_segno[2] = CpuToLe(params_.cur_seg[static_cast<int>(CursegType::kCursegColdNode)]); |
| ckp->cur_data_segno[0] = CpuToLe(params_.cur_seg[static_cast<int>(CursegType::kCursegHotData)]); |
| ckp->cur_data_segno[1] = CpuToLe(params_.cur_seg[static_cast<int>(CursegType::kCursegWarmData)]); |
| ckp->cur_data_segno[2] = CpuToLe(params_.cur_seg[static_cast<int>(CursegType::kCursegColdData)]); |
| for (i = 3; i < kMaxActiveNodeLogs; i++) { |
| ckp->cur_node_segno[i] = 0xffffffff; |
| ckp->cur_data_segno[i] = 0xffffffff; |
| } |
| |
| ckp->cur_node_blkoff[0] = CpuToLe(uint16_t{1}); |
| ckp->cur_data_blkoff[0] = CpuToLe(uint16_t{1}); |
| ckp->valid_block_count = CpuToLe(uint64_t{2}); |
| ckp->rsvd_segment_count = CpuToLe(params_.reserved_segments); |
| ckp->overprov_segment_count = CpuToLe( |
| (LeToCpu(super_block_.segment_count_main) - LeToCpu(ckp->rsvd_segment_count)) * |
| params_.overprovision / 100); |
| ckp->overprov_segment_count = |
| CpuToLe(LeToCpu(ckp->overprov_segment_count) + LeToCpu(ckp->rsvd_segment_count)); |
| |
| /* main segments - reserved segments - (node + data segments) */ |
| ckp->free_segment_count = CpuToLe(LeToCpu(super_block_.segment_count_main) - 6); |
| |
| ckp->user_block_count = CpuToLe( |
| ((LeToCpu(ckp->free_segment_count) + 6 - LeToCpu(ckp->overprov_segment_count)) * |
| params_.blks_per_seg)); |
| |
| ckp->cp_pack_total_block_count = CpuToLe(uint32_t{8}); |
| ckp->ckpt_flags |= kCpUmountFlag; |
| ckp->cp_pack_start_sum = CpuToLe(uint32_t{1}); |
| ckp->valid_node_count = CpuToLe(uint32_t{1}); |
| ckp->valid_inode_count = CpuToLe(uint32_t{1}); |
| ckp->next_free_nid = CpuToLe(LeToCpu(super_block_.root_ino) + 1); |
| |
| ckp->sit_ver_bitmap_bytesize = CpuToLe(((LeToCpu(super_block_.segment_count_sit) / 2) |
| << LeToCpu(super_block_.log_blocks_per_seg)) / |
| 8); |
| |
| ckp->nat_ver_bitmap_bytesize = CpuToLe(((LeToCpu(super_block_.segment_count_nat) / 2) |
| << LeToCpu(super_block_.log_blocks_per_seg)) / |
| 8); |
| |
| ckp->checksum_offset = CpuToLe(uint32_t{kChecksumOffset}); |
| |
| crc = F2fsCalCrc32(kF2fsSuperMagic, ckp, LeToCpu(ckp->checksum_offset)); |
| *(reinterpret_cast<uint32_t *>(reinterpret_cast<uint8_t *>(ckp) + |
| LeToCpu(ckp->checksum_offset))) = crc; |
| |
| blk_size_bytes = 1 << LeToCpu(super_block_.log_blocksize); |
| cp_seg_blk_offset = LeToCpu(super_block_.segment0_blkaddr) * blk_size_bytes; |
| |
| ret = WriteToDisk(ckp, cp_seg_blk_offset, kBlkSize); |
| if (ret < 0) { |
| printf("\n\tError: While writing the ckp to disk!!!\n"); |
| return ret; |
| } |
| |
| /* 2. Prepare and write Segment summary for data blocks */ |
| memset(sum, 0, sizeof(SummaryBlock)); |
| SetSumType((&sum->footer), kSumTypeData); |
| |
| sum->entries[0].nid = super_block_.root_ino; |
| sum->entries[0].ofs_in_node = 0; |
| |
| cp_seg_blk_offset += blk_size_bytes; |
| ret = WriteToDisk(sum, cp_seg_blk_offset, kBlkSize); |
| if (ret < 0) { |
| printf("\n\tError: While writing the sum_blk to disk!!!\n"); |
| return ret; |
| } |
| |
| /* 3. Fill segment summary for data block to zero. */ |
| memset(sum, 0, sizeof(SummaryBlock)); |
| SetSumType((&sum->footer), kSumTypeData); |
| |
| cp_seg_blk_offset += blk_size_bytes; |
| ret = WriteToDisk(sum, cp_seg_blk_offset, kBlkSize); |
| if (ret < 0) { |
| printf("\n\tError: While writing the sum_blk to disk!!!\n"); |
| return ret; |
| } |
| |
| /* 4. Fill segment summary for data block to zero. */ |
| memset(sum, 0, sizeof(SummaryBlock)); |
| SetSumType((&sum->footer), kSumTypeData); |
| |
| /* inode sit for root */ |
| sum->n_sits = CpuToLe(uint16_t{6}); |
| sum->sit_j.entries[0].segno = ckp->cur_node_segno[0]; |
| sum->sit_j.entries[0].se.vblocks = CpuToLe(uint16_t{(static_cast<int>(CursegType::kCursegHotNode) << 10) | 1}); |
| F2fsSetBit(0, sum->sit_j.entries[0].se.valid_map); |
| sum->sit_j.entries[1].segno = ckp->cur_node_segno[1]; |
| sum->sit_j.entries[1].se.vblocks = CpuToLe(uint16_t{(static_cast<int>(CursegType::kCursegWarmNode) << 10)}); |
| sum->sit_j.entries[2].segno = ckp->cur_node_segno[2]; |
| sum->sit_j.entries[2].se.vblocks = CpuToLe(uint16_t{(static_cast<int>(CursegType::kCursegColdNode) << 10)}); |
| |
| /* data sit for root */ |
| sum->sit_j.entries[3].segno = ckp->cur_data_segno[0]; |
| sum->sit_j.entries[3].se.vblocks = CpuToLe(uint16_t{(static_cast<uint16_t>(CursegType::kCursegHotData) << 10) | 1}); |
| F2fsSetBit(0, sum->sit_j.entries[3].se.valid_map); |
| sum->sit_j.entries[4].segno = ckp->cur_data_segno[1]; |
| sum->sit_j.entries[4].se.vblocks = CpuToLe(uint16_t{(static_cast<int>(CursegType::kCursegWarmData) << 10)}); |
| sum->sit_j.entries[5].segno = ckp->cur_data_segno[2]; |
| sum->sit_j.entries[5].se.vblocks = CpuToLe(uint16_t{(static_cast<int>(CursegType::kCursegColdData) << 10)}); |
| |
| cp_seg_blk_offset += blk_size_bytes; |
| ret = WriteToDisk(sum, cp_seg_blk_offset, kBlkSize); |
| if (ret < 0) { |
| printf("\n\tError: While writing the sum_blk to disk!!!\n"); |
| return ret; |
| } |
| |
| /* 5. Prepare and write Segment summary for node blocks */ |
| memset(sum, 0, sizeof(SummaryBlock)); |
| SetSumType((&sum->footer), kSumTypeNode); |
| |
| sum->entries[0].nid = super_block_.root_ino; |
| sum->entries[0].ofs_in_node = 0; |
| |
| cp_seg_blk_offset += blk_size_bytes; |
| ret = WriteToDisk(sum, cp_seg_blk_offset, kBlkSize); |
| if (ret < 0) { |
| printf("\n\tError: While writing the sum_blk to disk!!!\n"); |
| return ret; |
| } |
| |
| /* 6. Fill segment summary for data block to zero. */ |
| memset(sum, 0, sizeof(SummaryBlock)); |
| SetSumType((&sum->footer), kSumTypeNode); |
| |
| cp_seg_blk_offset += blk_size_bytes; |
| ret = WriteToDisk(sum, cp_seg_blk_offset, kBlkSize); |
| if (ret < 0) { |
| printf("\n\tError: While writing the sum_blk to disk!!!\n"); |
| return ret; |
| } |
| |
| /* 7. Fill segment summary for data block to zero. */ |
| memset(sum, 0, sizeof(SummaryBlock)); |
| SetSumType((&sum->footer), kSumTypeNode); |
| cp_seg_blk_offset += blk_size_bytes; |
| ret = WriteToDisk(sum, cp_seg_blk_offset, kBlkSize); |
| if (ret < 0) { |
| printf("\n\tError: While writing the sum_blk to disk!!!\n"); |
| return ret; |
| } |
| |
| /* 8. cp page2 */ |
| cp_seg_blk_offset += blk_size_bytes; |
| ret = WriteToDisk(ckp, cp_seg_blk_offset, kBlkSize); |
| if (ret < 0) { |
| printf("\n\tError: While writing the ckp to disk!!!\n"); |
| return ret; |
| } |
| |
| /* 9. cp page 1 of check point pack 2 |
| * Initiatialize other checkpoint pack with version zero |
| */ |
| ckp->checkpoint_ver = 0; |
| |
| crc = F2fsCalCrc32(kF2fsSuperMagic, ckp, LeToCpu(ckp->checksum_offset)); |
| *(reinterpret_cast<uint32_t *>(reinterpret_cast<uint8_t *>(ckp) + |
| LeToCpu(ckp->checksum_offset))) = crc; |
| |
| cp_seg_blk_offset = |
| (LeToCpu(super_block_.segment0_blkaddr) + params_.blks_per_seg) * blk_size_bytes; |
| ret = WriteToDisk(ckp, cp_seg_blk_offset, kBlkSize); |
| if (ret < 0) { |
| printf("\n\tError: While writing the ckp to disk!!!\n"); |
| return ret; |
| } |
| |
| free(sum); |
| free(ckp); |
| return ZX_OK; |
| } |
| |
| zx_status_t F2fsMkfs::WriteSuperBlock() { |
| uint32_t index = 0; |
| uint8_t *zero_buff; |
| zx_status_t ret; |
| |
| zero_buff = static_cast<uint8_t *>(calloc(kBlkSize, 1)); |
| |
| memcpy(zero_buff + kSuperOffset, &super_block_, sizeof(super_block_)); |
| |
| for (index = 0; index < 2; index++) { |
| ret = WriteToDisk(zero_buff, index * kBlkSize, kBlkSize); |
| if (ret < 0) { |
| printf("\n\tError: While while writing supe_blk on disk!!! index : %d\n", index); |
| return ret; |
| } |
| } |
| |
| free(zero_buff); |
| return ZX_OK; |
| } |
| |
| zx_status_t F2fsMkfs::WriteRootInode() { |
| Node *raw_node = nullptr; |
| uint32_t blk_size_bytes; |
| uint64_t data_blk_nor; |
| uint64_t main_area_node_seg_blk_offset = 0; |
| zx_status_t ret; |
| |
| raw_node = static_cast<Node *>(calloc(kBlkSize, 1)); |
| if (raw_node == nullptr) { |
| printf("\n\tError: Calloc Failed for raw_node!!!\n"); |
| return ZX_ERR_NO_MEMORY; |
| } |
| |
| raw_node->footer.nid = super_block_.root_ino; |
| raw_node->footer.ino = super_block_.root_ino; |
| raw_node->footer.cp_ver = CpuToLe(uint64_t{1}); |
| raw_node->footer.next_blkaddr = |
| CpuToLe(LeToCpu(super_block_.main_blkaddr) + |
| params_.cur_seg[static_cast<int>(CursegType::kCursegHotNode)] * |
| params_.blks_per_seg + 1); |
| |
| raw_node->i.i_mode = CpuToLe(uint16_t{0x41ed}); |
| raw_node->i.i_links = CpuToLe(uint32_t{2}); |
| raw_node->i.i_uid = CpuToLe(getuid()); |
| raw_node->i.i_gid = CpuToLe(getgid()); |
| |
| blk_size_bytes = 1 << LeToCpu(super_block_.log_blocksize); |
| raw_node->i.i_size = CpuToLe(1 * blk_size_bytes); /* dentry */ |
| raw_node->i.i_blocks = CpuToLe(uint64_t{2}); |
| |
| raw_node->i.i_atime = CpuToLe(static_cast<uint64_t>(time(nullptr))); |
| raw_node->i.i_atime_nsec = 0; |
| raw_node->i.i_ctime = CpuToLe(static_cast<uint64_t>(time(nullptr))); |
| raw_node->i.i_ctime_nsec = 0; |
| raw_node->i.i_mtime = CpuToLe(static_cast<uint64_t>(time(nullptr))); |
| raw_node->i.i_mtime_nsec = 0; |
| raw_node->i.i_generation = 0; |
| raw_node->i.i_xattr_nid = 0; |
| raw_node->i.i_flags = 0; |
| raw_node->i.i_current_depth = CpuToLe(uint32_t{1}); |
| |
| data_blk_nor = LeToCpu(super_block_.main_blkaddr) + |
| params_.cur_seg[static_cast<int>(CursegType::kCursegHotData)] * params_.blks_per_seg; |
| raw_node->i.i_addr[0] = CpuToLe(data_blk_nor); |
| |
| raw_node->i.i_ext.fofs = 0; |
| raw_node->i.i_ext.blk_addr = CpuToLe(data_blk_nor); |
| raw_node->i.i_ext.len = CpuToLe(uint32_t{1}); |
| |
| main_area_node_seg_blk_offset = LeToCpu(super_block_.main_blkaddr); |
| main_area_node_seg_blk_offset += |
| params_.cur_seg[static_cast<int>(CursegType::kCursegHotNode)] * params_.blks_per_seg; |
| main_area_node_seg_blk_offset *= blk_size_bytes; |
| |
| ret = WriteToDisk(raw_node, main_area_node_seg_blk_offset, kBlkSize); |
| if (ret < 0) { |
| printf("\n\tError: While writing the raw_node to disk!!!, size = %lu\n",sizeof(Node)); |
| return ret; |
| } |
| |
| memset(raw_node, 0xff, sizeof(Node)); |
| |
| ret = WriteToDisk(raw_node, main_area_node_seg_blk_offset + 4096, kBlkSize); |
| if (ret < 0) { |
| printf("\n\tError: While writing the raw_node to disk!!!\n"); |
| return ret; |
| } |
| free(raw_node); |
| return ZX_OK; |
| } |
| |
| zx_status_t F2fsMkfs::UpdateNatRoot() { |
| NatBlock *nat_blk = nullptr; |
| uint32_t blk_size_bytes; |
| uint64_t nat_seg_blk_offset = 0; |
| zx_status_t ret; |
| |
| nat_blk = static_cast<NatBlock *>(calloc(kBlkSize, 1)); |
| if (nat_blk == nullptr) { |
| printf("\n\tError: Calloc Failed for nat_blk!!!\n"); |
| return ZX_ERR_NO_MEMORY; |
| } |
| |
| /* update root */ |
| nat_blk->entries[super_block_.root_ino].block_addr = |
| CpuToLe(LeToCpu(super_block_.main_blkaddr) + |
| params_.cur_seg[static_cast<int>(CursegType::kCursegHotNode)] * params_.blks_per_seg); |
| nat_blk->entries[super_block_.root_ino].ino = super_block_.root_ino; |
| |
| /* update node nat */ |
| nat_blk->entries[super_block_.node_ino].block_addr = CpuToLe(uint32_t{1}); |
| nat_blk->entries[super_block_.node_ino].ino = super_block_.node_ino; |
| |
| /* update meta nat */ |
| nat_blk->entries[super_block_.meta_ino].block_addr = CpuToLe(uint32_t{1}); |
| nat_blk->entries[super_block_.meta_ino].ino = super_block_.meta_ino; |
| |
| blk_size_bytes = 1 << LeToCpu(super_block_.log_blocksize); |
| |
| nat_seg_blk_offset = LeToCpu(super_block_.nat_blkaddr) * blk_size_bytes; |
| |
| ret = WriteToDisk(nat_blk, nat_seg_blk_offset, kBlkSize); |
| if (ret < 0) { |
| printf("\n\tError: While writing the nat_blk set0 to disk!!!\n"); |
| return ret; |
| } |
| |
| free(nat_blk); |
| return ZX_OK; |
| } |
| |
| zx_status_t F2fsMkfs::AddDefaultDentryRoot() { |
| DentryBlock *dent_blk = nullptr; |
| uint32_t blk_size_bytes; |
| uint64_t data_blk_offset = 0; |
| zx_status_t ret; |
| |
| dent_blk = static_cast<DentryBlock *>(calloc(kBlkSize, 1)); |
| if (dent_blk == nullptr) { |
| printf("\n\tError: Calloc Failed for dent_blk!!!\n"); |
| return ZX_ERR_NO_MEMORY; |
| } |
| |
| dent_blk->dentry[0].hash_code = 0; |
| dent_blk->dentry[0].ino = super_block_.root_ino; |
| dent_blk->dentry[0].name_len = CpuToLe(uint16_t{1}); |
| dent_blk->dentry[0].file_type = static_cast<uint8_t>(FileType::kFtDir); |
| memcpy(dent_blk->filename[0], ".", 1); |
| |
| dent_blk->dentry[1].hash_code = 0; |
| dent_blk->dentry[1].ino = super_block_.root_ino; |
| dent_blk->dentry[1].name_len = CpuToLe(uint16_t{2}); |
| dent_blk->dentry[1].file_type = static_cast<uint8_t>(FileType::kFtDir); |
| memcpy(dent_blk->filename[1], "..", 2); |
| |
| /* bitmap for . and .. */ |
| dent_blk->dentry_bitmap[0] = (1 << 1) | (1 << 0); |
| blk_size_bytes = 1 << LeToCpu(super_block_.log_blocksize); |
| data_blk_offset = (LeToCpu(super_block_.main_blkaddr) + |
| params_.cur_seg[static_cast<int>(CursegType::kCursegHotData)] * params_.blks_per_seg) * |
| blk_size_bytes; |
| |
| ret = WriteToDisk(dent_blk, data_blk_offset, kBlkSize); |
| if (ret < 0) { |
| printf("\n\tError: While writing the dentry_blk to disk!!!\n"); |
| return ret; |
| } |
| |
| free(dent_blk); |
| return ZX_OK; |
| } |
| |
| zx_status_t F2fsMkfs::CreateRootDir() { |
| int8_t err = 0; |
| |
| err = WriteRootInode(); |
| if (err < 0) { |
| printf("\n\tError: Failed to write root inode!!!\n"); |
| goto exit; |
| } |
| |
| err = UpdateNatRoot(); |
| if (err < 0) { |
| printf("\n\tError: Failed to update NAT for root!!!\n"); |
| goto exit; |
| } |
| |
| err = AddDefaultDentryRoot(); |
| if (err < 0) { |
| printf("\n\tError: Failed to add default dentries for root!!!\n"); |
| goto exit; |
| } |
| exit: |
| if (err) |
| printf("\n\tError: Could not create the root directory!!!\n"); |
| |
| return err; |
| } |
| |
| #if 0 // porting needed |
| // int F2fsMkfs::F2fsTrimDevice() |
| // { |
| // uint64_t range[2]; |
| // stat stat_buf; |
| |
| // range[0] = 0; |
| // range[1] = params_.total_sectors * kDefaultSectorSizes; |
| |
| // if (fstat(params_.fd, &stat_buf) < 0 ) { |
| // printf("\n\tError: Failed to get the device stat!!!\n"); |
| // return -1; |
| // } |
| |
| // if (S_ISREG(stat_buf.st_mode)) |
| // return 0; |
| // else if (S_ISBLK(stat_buf.st_mode)) { |
| // // if (ioctl(params_.fd, BLKDISCARD, &range) < 0) |
| // printf("Info: This device doesn't support TRIM\n"); |
| // } else |
| // return -1; |
| // return 0; |
| // } |
| #endif |
| |
| zx_status_t F2fsMkfs::FormatDevice() { |
| zx_status_t err = 0; |
| |
| err = PrepareSuperBlock(); |
| if (err < 0) |
| goto exit; |
| |
| #if 0 // porting needed |
| // TRIM is not supported |
| // err = f2fs_trim_device(); |
| // if (err < 0) { |
| // printf("\n\tError: Failed to trim whole device!!!\n"); |
| // goto exit; |
| // } |
| #endif |
| err = InitSitArea(); |
| if (err < 0) { |
| printf("\n\tError: Failed to Initialise the SIT AREA!!!\n"); |
| goto exit; |
| } |
| |
| err = InitNatArea(); |
| if (err < 0) { |
| printf("\n\tError: Failed to Initialise the NAT AREA!!!\n"); |
| goto exit; |
| } |
| |
| err = CreateRootDir(); |
| if (err < 0) { |
| printf("\n\tError: Failed to create the root directory!!!\n"); |
| goto exit; |
| } |
| |
| err = WriteCheckPointPack(); |
| if (err < 0) { |
| printf("\n\tError: Failed to write the check point pack!!!\n"); |
| goto exit; |
| } |
| |
| err = WriteSuperBlock(); |
| if (err < 0) { |
| printf("\n\tError: Failed to write the Super Block!!!\n"); |
| goto exit; |
| } |
| exit: |
| if (err) |
| printf("\n\tError: Could not format the device!!!\n"); |
| |
| /* |
| * We should call fsync() to flush out all the dirty pages |
| * in the block device page cache. |
| */ |
| bc_->Sync(); |
| |
| return err; |
| } |
| |
| } // namespace f2fs |