On Fri, Aug 05, 2016 at 01:57:37PM +0300, Andrei Borzenkov wrote: > Vladimir prefers to postpone new features until 2.02 is out. From my > side I think it is isolated enough and new code so low regression > risk. Vladimir has the final word as maintainer :)
Okay, I can wait for 2.02. ;) BTW, I've heard that openmandriva adopted this patch to support F2FS in their installer. Thanks, > > On Thu, Aug 4, 2016 at 8:06 PM, Jaegeuk Kim <jaeg...@kernel.org> wrote: > > Hi Andrei, > > > > It's been sitting for a long long time. > > May I ask whether or not there is any merging plan of this? > > > > Thanks, > > > > On Thu, Mar 03, 2016 at 01:36:53PM -0800, Jaegeuk Kim wrote: > >> Change log from v7: > >> - fix an offset bug in read_file > >> > >> -- >8 -- > >> From d774cdecc2fee18ed44098c88d2a54d358bc04d3 Mon Sep 17 00:00:00 2001 > >> From: Jaegeuk Kim <jaeg...@kernel.org> > >> Date: Tue, 17 Nov 2015 12:45:13 -0800 > >> Subject: [PATCH] F2FS support > >> > >> "F2FS (Flash-Friendly File System) is flash-friendly file system which was > >> merged > >> into Linux kernel v3.8 in 2013. > >> > >> The motive for F2FS was to build a file system that from the start, takes > >> into > >> account the characteristics of NAND flash memory-based storage devices > >> (such as > >> solid-state disks, eMMC, and SD cards). > >> > >> F2FS was designed on a basis of a log-structured file system approach, > >> which > >> remedies some known issues of the older log structured file systems, such > >> as > >> the snowball effect of wandering trees and high cleaning overhead. In > >> addition, > >> since a NAND-based storage device shows different characteristics > >> according to > >> its internal geometry or flash memory management scheme (such as the Flash > >> Translation Layer or FTL), it supports various parameters not only for > >> configuring on-disk layout, but also for selecting allocation and cleaning > >> algorithm.", quote by https://en.wikipedia.org/wiki/F2FS. > >> > >> The source codes for F2FS are available from: > >> > >> http://git.kernel.org/cgit/linux/kernel/git/jaegeuk/f2fs.git > >> http://git.kernel.org/cgit/linux/kernel/git/jaegeuk/f2fs-tools.git > >> > >> Signed-off-by: Jaegeuk Kim <jaeg...@kernel.org> > >> --- > >> Makefile.util.def | 7 + > >> docs/grub.texi | 5 +- > >> grub-core/Makefile.core.def | 5 + > >> grub-core/fs/f2fs.c | 1289 > >> ++++++++++++++++++++++++++++++++++++++++++ > >> po/exclude.pot | 1 + > >> tests/f2fs_test.in | 19 + > >> tests/util/grub-fs-tester.in | 10 +- > >> 7 files changed, 1332 insertions(+), 4 deletions(-) > >> create mode 100644 grub-core/fs/f2fs.c > >> create mode 100644 tests/f2fs_test.in > >> > >> diff --git a/Makefile.util.def b/Makefile.util.def > >> index db7e8ec..84627bb 100644 > >> --- a/Makefile.util.def > >> +++ b/Makefile.util.def > >> @@ -99,6 +99,7 @@ library = { > >> common = grub-core/fs/ext2.c; > >> common = grub-core/fs/fat.c; > >> common = grub-core/fs/exfat.c; > >> + common = grub-core/fs/f2fs.c; > >> common = grub-core/fs/fshelp.c; > >> common = grub-core/fs/hfs.c; > >> common = grub-core/fs/hfsplus.c; > >> @@ -766,6 +767,12 @@ script = { > >> > >> script = { > >> testcase; > >> + name = f2fs_test; > >> + common = tests/f2fs_test.in; > >> +}; > >> + > >> +script = { > >> + testcase; > >> name = nilfs2_test; > >> common = tests/nilfs2_test.in; > >> }; > >> diff --git a/docs/grub.texi b/docs/grub.texi > >> index 1df3db2..e5a80f3 100644 > >> --- a/docs/grub.texi > >> +++ b/docs/grub.texi > >> @@ -360,7 +360,8 @@ blocklist notation. The currently supported filesystem > >> types are @dfn{Amiga > >> Fast FileSystem (AFFS)}, @dfn{AtheOS fs}, @dfn{BeFS}, > >> @dfn{BtrFS} (including raid0, raid1, raid10, gzip and lzo), > >> @dfn{cpio} (little- and big-endian bin, odc and newc variants), > >> -@dfn{Linux ext2/ext3/ext4}, @dfn{DOS FAT12/FAT16/FAT32}, @dfn{exFAT}, > >> @dfn{HFS}, > >> +@dfn{Linux ext2/ext3/ext4}, @dfn{DOS FAT12/FAT16/FAT32}, @dfn{exFAT}, > >> +@dfn{f2fs}, @dfn{HFS}, > >> @dfn{HFS+}, @dfn{ISO9660} (including Joliet, Rock-ridge and multi-chunk > >> files), > >> @dfn{JFS}, @dfn{Minix fs} (versions 1, 2 and 3), @dfn{nilfs2}, > >> @dfn{NTFS} (including compression), @dfn{ReiserFS}, @dfn{ROMFS}, > >> @@ -5347,7 +5348,7 @@ NTFS, JFS, UDF, HFS+, exFAT, long filenames in FAT, > >> Joliet part of > >> ISO9660 are treated as UTF-16 as per specification. AFS and BFS are read > >> as UTF-8, again according to specification. BtrFS, cpio, tar, squash4, > >> minix, > >> minix2, minix3, ROMFS, ReiserFS, XFS, ext2, ext3, ext4, FAT (short names), > >> -RockRidge part of ISO9660, nilfs2, UFS1, UFS2 and ZFS are assumed > >> +f2fs, RockRidge part of ISO9660, nilfs2, UFS1, UFS2 and ZFS are assumed > >> to be UTF-8. This might be false on systems configured with legacy charset > >> but as long as the charset used is superset of ASCII you should be able to > >> access ASCII-named files. And it's recommended to configure your system > >> to use > >> diff --git a/grub-core/Makefile.core.def b/grub-core/Makefile.core.def > >> index d9fa0e3..b585ade 100644 > >> --- a/grub-core/Makefile.core.def > >> +++ b/grub-core/Makefile.core.def > >> @@ -1278,6 +1278,11 @@ module = { > >> }; > >> > >> module = { > >> + name = f2fs; > >> + common = fs/f2fs.c; > >> +}; > >> + > >> +module = { > >> name = fshelp; > >> common = fs/fshelp.c; > >> }; > >> diff --git a/grub-core/fs/f2fs.c b/grub-core/fs/f2fs.c > >> new file mode 100644 > >> index 0000000..7fb256f > >> --- /dev/null > >> +++ b/grub-core/fs/f2fs.c > >> @@ -0,0 +1,1289 @@ > >> +/* > >> + * f2fs.c - Flash-Friendly File System > >> + * > >> + * Written by Jaegeuk Kim <jaeg...@kernel.org> > >> + * > >> + * Copyright (C) 2015 Free Software Foundation, Inc. > >> + * > >> + * GRUB is free software: you can redistribute it and/or modify > >> + * it under the terms of the GNU General Public License as published by > >> + * the Free Software Foundation, either version 3 of the License, or > >> + * (at your option) any later version. > >> + * > >> + * GRUB is distributed in the hope that it will be useful, > >> + * but WITHOUT ANY WARRANTY; without even the implied warranty of > >> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > >> + * GNU General Public License for more details. > >> + * > >> + * You should have received a copy of the GNU General Public License > >> + * along with GRUB. If not, see <http://www.gnu.org/licenses/>. > >> + */ > >> +#include <grub/err.h> > >> +#include <grub/file.h> > >> +#include <grub/mm.h> > >> +#include <grub/misc.h> > >> +#include <grub/disk.h> > >> +#include <grub/dl.h> > >> +#include <grub/types.h> > >> +#include <grub/charset.h> > >> +#include <grub/fshelp.h> > >> + > >> +GRUB_MOD_LICENSE ("GPLv3+"); > >> + > >> +/* F2FS Magic Number */ > >> +#define F2FS_SUPER_MAGIC 0xF2F52010 > >> +#define CHECKSUM_OFFSET 4092 /* must be aligned 4 > >> bytes */ > >> +#define U32_CHECKSUM_OFFSET (CHECKSUM_OFFSET >> 2) > >> + > >> +/* byte-size offset */ > >> +#define F2FS_SUPER_OFFSET ((grub_disk_addr_t)1024) > >> +#define F2FS_SUPER_OFFSET0 (F2FS_SUPER_OFFSET >> GRUB_DISK_SECTOR_BITS) > >> +#define F2FS_SUPER_OFFSET1 ((F2FS_SUPER_OFFSET + F2FS_BLKSIZE) >> \ > >> + GRUB_DISK_SECTOR_BITS) > >> + > >> +/* 9 bits for 512 bytes */ > >> +#define F2FS_MIN_LOG_SECTOR_SIZE 9 > >> + > >> +/* support only 4KB block */ > >> +#define F2FS_BLK_BITS 12 > >> +#define F2FS_BLKSIZE (1 << F2FS_BLK_BITS) > >> +#define F2FS_BLK_SEC_BITS (F2FS_BLK_BITS - GRUB_DISK_SECTOR_BITS) > >> + > >> +#define VERSION_LEN 256 > >> +#define F2FS_MAX_EXTENSION 64 > >> + > >> +#define CP_COMPACT_SUM_FLAG 0x00000004 > >> +#define CP_UMOUNT_FLAG 0x00000001 > >> + > >> +#define MAX_ACTIVE_LOGS 16 > >> +#define MAX_ACTIVE_NODE_LOGS 8 > >> +#define MAX_ACTIVE_DATA_LOGS 8 > >> +#define NR_CURSEG_DATA_TYPE 3 > >> +#define NR_CURSEG_NODE_TYPE 3 > >> +#define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE) > >> + > >> +#define ENTRIES_IN_SUM 512 > >> +#define SUMMARY_SIZE 7 > >> +#define SUM_FOOTER_SIZE 5 > >> +#define JENTRY_SIZE (sizeof(struct grub_f2fs_nat_jent)) > >> +#define SUM_ENTRIES_SIZE (SUMMARY_SIZE * ENTRIES_IN_SUM) > >> +#define SUM_JOURNAL_SIZE (F2FS_BLKSIZE - SUM_FOOTER_SIZE -\ > >> + SUM_ENTRIES_SIZE) > >> +#define NAT_JOURNAL_ENTRIES ((SUM_JOURNAL_SIZE - 2) / JENTRY_SIZE) > >> +#define NAT_JOURNAL_RESERVED ((SUM_JOURNAL_SIZE - 2) % JENTRY_SIZE) > >> + > >> +#define NAT_ENTRY_SIZE (sizeof(struct grub_f2fs_nat_entry)) > >> +#define NAT_ENTRY_PER_BLOCK (F2FS_BLKSIZE / NAT_ENTRY_SIZE) > >> + > >> +#define F2FS_NAME_LEN 255 > >> +#define F2FS_SLOT_LEN 8 > >> +#define NR_DENTRY_IN_BLOCK 214 > >> +#define SIZE_OF_DIR_ENTRY 11 /* by byte */ > >> +#define BITS_PER_BYTE 8 > >> +#define SIZE_OF_DENTRY_BITMAP ((NR_DENTRY_IN_BLOCK + BITS_PER_BYTE > >> - 1) / \ > >> + BITS_PER_BYTE) > >> +#define SIZE_OF_RESERVED (F2FS_BLKSIZE - ((SIZE_OF_DIR_ENTRY + \ > >> + F2FS_SLOT_LEN) * \ > >> + NR_DENTRY_IN_BLOCK + SIZE_OF_DENTRY_BITMAP)) > >> + > >> +#define F2FS_INLINE_XATTR_ADDRS 50 /* 200 bytes for inline > >> xattrs */ > >> +#define DEF_ADDRS_PER_INODE 923 /* Address Pointers in an Inode */ > >> + > >> +#define ADDRS_PER_BLOCK 1018 /* Address Pointers in a Direct > >> Block */ > >> +#define NIDS_PER_BLOCK 1018 /* Node IDs in an Indirect Block */ > >> +#define NODE_DIR1_BLOCK (DEF_ADDRS_PER_INODE + 1) > >> +#define NODE_DIR2_BLOCK (DEF_ADDRS_PER_INODE + 2) > >> +#define NODE_IND1_BLOCK (DEF_ADDRS_PER_INODE + 3) > >> +#define NODE_IND2_BLOCK (DEF_ADDRS_PER_INODE + 4) > >> +#define NODE_DIND_BLOCK (DEF_ADDRS_PER_INODE + 5) > >> + > >> +#define MAX_INLINE_DATA (4 * (DEF_ADDRS_PER_INODE - \ > >> + F2FS_INLINE_XATTR_ADDRS - 1)) > >> +#define NR_INLINE_DENTRY (MAX_INLINE_DATA * BITS_PER_BYTE / \ > >> + ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \ > >> + BITS_PER_BYTE + 1)) > >> +#define INLINE_DENTRY_BITMAP_SIZE ((NR_INLINE_DENTRY + \ > >> + BITS_PER_BYTE - 1) / BITS_PER_BYTE) > >> +#define INLINE_RESERVED_SIZE (MAX_INLINE_DATA - \ > >> + ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \ > >> + NR_INLINE_DENTRY + INLINE_DENTRY_BITMAP_SIZE)) > >> +#define CURSEG_HOT_DATA 0 > >> + > >> +#define CKPT_FLAG_SET(ckpt, f) \ > >> + (ckpt)->ckpt_flags & grub_cpu_to_le32_compile_time (f) > >> + > >> +#define F2FS_INLINE_XATTR 0x01 /* file inline xattr flag */ > >> +#define F2FS_INLINE_DATA 0x02 /* file inline data flag */ > >> +#define F2FS_INLINE_DENTRY 0x04 /* file inline dentry flag */ > >> +#define F2FS_DATA_EXIST 0x08 /* file inline data exist > >> flag */ > >> +#define F2FS_INLINE_DOTS 0x10 /* file having implicit dot dentries > >> */ > >> + > >> +enum FILE_TYPE > >> +{ > >> + F2FS_FT_UNKNOWN, > >> + F2FS_FT_REG_FILE = 1, > >> + F2FS_FT_DIR = 2, > >> + F2FS_FT_SYMLINK = 7, > >> +}; > >> + > >> +#define MAX_VOLUME_NAME 512 > >> + > >> +struct grub_f2fs_superblock > >> +{ > >> + grub_uint32_t magic; > >> + grub_uint16_t dummy1[2]; > >> + grub_uint32_t log_sectorsize; > >> + grub_uint32_t log_sectors_per_block; > >> + grub_uint32_t log_blocksize; > >> + grub_uint32_t log_blocks_per_seg; > >> + grub_uint32_t segs_per_sec; > >> + grub_uint32_t secs_per_zone; > >> + grub_uint32_t checksum_offset; > >> + grub_uint8_t dummy2[40]; > >> + grub_uint32_t cp_blkaddr; > >> + grub_uint32_t sit_blkaddr; > >> + grub_uint32_t nat_blkaddr; > >> + grub_uint32_t ssa_blkaddr; > >> + grub_uint32_t main_blkaddr; > >> + grub_uint32_t root_ino; > >> + grub_uint32_t node_ino; > >> + grub_uint32_t meta_ino; > >> + grub_uint8_t uuid[16]; > >> + grub_uint16_t volume_name[MAX_VOLUME_NAME]; > >> + grub_uint32_t extension_count; > >> + grub_uint8_t extension_list[F2FS_MAX_EXTENSION][8]; > >> + grub_uint32_t cp_payload; > >> + grub_uint8_t version[VERSION_LEN]; > >> + grub_uint8_t init_version[VERSION_LEN]; > >> +} GRUB_PACKED; > >> + > >> +struct grub_f2fs_checkpoint > >> +{ > >> + grub_uint64_t checkpoint_ver; > >> + grub_uint64_t user_block_count; > >> + grub_uint64_t valid_block_count; > >> + grub_uint32_t rsvd_segment_count; > >> + grub_uint32_t overprov_segment_count; > >> + grub_uint32_t free_segment_count; > >> + grub_uint32_t cur_node_segno[MAX_ACTIVE_NODE_LOGS]; > >> + grub_uint16_t cur_node_blkoff[MAX_ACTIVE_NODE_LOGS]; > >> + grub_uint32_t cur_data_segno[MAX_ACTIVE_DATA_LOGS]; > >> + grub_uint16_t cur_data_blkoff[MAX_ACTIVE_DATA_LOGS]; > >> + grub_uint32_t ckpt_flags; > >> + grub_uint32_t cp_pack_total_block_count; > >> + grub_uint32_t cp_pack_start_sum; > >> + grub_uint32_t valid_node_count; > >> + grub_uint32_t valid_inode_count; > >> + grub_uint32_t next_free_nid; > >> + grub_uint32_t sit_ver_bitmap_bytesize; > >> + grub_uint32_t nat_ver_bitmap_bytesize; > >> + grub_uint32_t checksum_offset; > >> + grub_uint64_t elapsed_time; > >> + grub_uint8_t alloc_type[MAX_ACTIVE_LOGS]; > >> + grub_uint8_t sit_nat_version_bitmap[3900]; > >> + grub_uint32_t checksum; > >> +} GRUB_PACKED; > >> + > >> +struct grub_f2fs_nat_entry { > >> + grub_uint8_t version; > >> + grub_uint32_t ino; > >> + grub_uint32_t block_addr; > >> +} GRUB_PACKED; > >> + > >> +struct grub_f2fs_nat_jent > >> +{ > >> + grub_uint32_t nid; > >> + struct grub_f2fs_nat_entry ne; > >> +} GRUB_PACKED; > >> + > >> +struct grub_f2fs_nat_journal { > >> + grub_uint16_t n_nats; > >> + struct grub_f2fs_nat_jent entries[NAT_JOURNAL_ENTRIES]; > >> + grub_uint8_t reserved[NAT_JOURNAL_RESERVED]; > >> +} GRUB_PACKED; > >> + > >> +struct grub_f2fs_nat_block { > >> + struct grub_f2fs_nat_entry ne[NAT_ENTRY_PER_BLOCK]; > >> +} GRUB_PACKED; > >> + > >> +struct grub_f2fs_dir_entry > >> +{ > >> + grub_uint32_t hash_code; > >> + grub_uint32_t ino; > >> + grub_uint16_t name_len; > >> + grub_uint8_t file_type; > >> +} GRUB_PACKED; > >> + > >> +struct grub_f2fs_inline_dentry > >> +{ > >> + grub_uint8_t dentry_bitmap[INLINE_DENTRY_BITMAP_SIZE]; > >> + grub_uint8_t reserved[INLINE_RESERVED_SIZE]; > >> + struct grub_f2fs_dir_entry dentry[NR_INLINE_DENTRY]; > >> + grub_uint8_t filename[NR_INLINE_DENTRY][F2FS_SLOT_LEN]; > >> +} GRUB_PACKED; > >> + > >> +struct grub_f2fs_dentry_block { > >> + grub_uint8_t dentry_bitmap[SIZE_OF_DENTRY_BITMAP]; > >> + grub_uint8_t reserved[SIZE_OF_RESERVED]; > >> + struct grub_f2fs_dir_entry dentry[NR_DENTRY_IN_BLOCK]; > >> + grub_uint8_t filename[NR_DENTRY_IN_BLOCK][F2FS_SLOT_LEN]; > >> +} GRUB_PACKED; > >> + > >> +struct grub_f2fs_inode > >> +{ > >> + grub_uint16_t i_mode; > >> + grub_uint8_t i_advise; > >> + grub_uint8_t i_inline; > >> + grub_uint32_t i_uid; > >> + grub_uint32_t i_gid; > >> + grub_uint32_t i_links; > >> + grub_uint64_t i_size; > >> + grub_uint64_t i_blocks; > >> + grub_uint64_t i_atime; > >> + grub_uint64_t i_ctime; > >> + grub_uint64_t i_mtime; > >> + grub_uint32_t i_atime_nsec; > >> + grub_uint32_t i_ctime_nsec; > >> + grub_uint32_t i_mtime_nsec; > >> + grub_uint32_t i_generation; > >> + grub_uint32_t i_current_depth; > >> + grub_uint32_t i_xattr_nid; > >> + grub_uint32_t i_flags; > >> + grub_uint32_t i_pino; > >> + grub_uint32_t i_namelen; > >> + grub_uint8_t i_name[F2FS_NAME_LEN]; > >> + grub_uint8_t i_dir_level; > >> + grub_uint8_t i_ext[12]; > >> + grub_uint32_t i_addr[DEF_ADDRS_PER_INODE]; > >> + grub_uint32_t i_nid[5]; > >> +} GRUB_PACKED; > >> + > >> +struct grub_direct_node { > >> + grub_uint32_t addr[ADDRS_PER_BLOCK]; > >> +} GRUB_PACKED; > >> + > >> +struct grub_indirect_node { > >> + grub_uint32_t nid[NIDS_PER_BLOCK]; > >> +} GRUB_PACKED; > >> + > >> +struct grub_f2fs_node > >> +{ > >> + union > >> + { > >> + struct grub_f2fs_inode i; > >> + struct grub_direct_node dn; > >> + struct grub_indirect_node in; > >> + char buf[F2FS_BLKSIZE - 40]; /* Should occupy F2FS_BLKSIZE > >> totally */ > >> + }; > >> + grub_uint8_t dummy[40]; > >> +} GRUB_PACKED; > >> + > >> +struct grub_fshelp_node > >> +{ > >> + struct grub_f2fs_data *data; > >> + struct grub_f2fs_node inode; > >> + grub_uint32_t ino; > >> + int inode_read; > >> +}; > >> + > >> +struct grub_f2fs_data > >> +{ > >> + struct grub_f2fs_superblock sblock; > >> + struct grub_f2fs_checkpoint ckpt; > >> + > >> + grub_uint32_t root_ino; > >> + grub_uint32_t blocks_per_seg; > >> + grub_uint32_t cp_blkaddr; > >> + grub_uint32_t nat_blkaddr; > >> + > >> + struct grub_f2fs_nat_journal nat_j; > >> + char *nat_bitmap; > >> + > >> + grub_disk_t disk; > >> + struct grub_f2fs_node *inode; > >> + struct grub_fshelp_node diropen; > >> +}; > >> + > >> +struct grub_f2fs_dir_iter_ctx > >> +{ > >> + struct grub_f2fs_data *data; > >> + grub_fshelp_iterate_dir_hook_t hook; > >> + void *hook_data; > >> + grub_uint8_t *bitmap; > >> + grub_uint8_t (*filename)[F2FS_SLOT_LEN]; > >> + struct grub_f2fs_dir_entry *dentry; > >> + int max; > >> +}; > >> + > >> +struct grub_f2fs_dir_ctx > >> +{ > >> + grub_fs_dir_hook_t hook; > >> + void *hook_data; > >> + struct grub_f2fs_data *data; > >> +}; > >> + > >> +static grub_dl_t my_mod; > >> + > >> +static inline int > >> +grub_f2fs_test_bit_le (int nr, const grub_uint8_t *addr) > >> +{ > >> + return addr[nr >> 3] & (1 << (nr & 7)); > >> +} > >> + > >> +static inline char * > >> +__inline_addr (struct grub_f2fs_inode *inode) > >> +{ > >> + return (char *)&inode->i_addr[1]; > >> +} > >> + > >> +static inline grub_uint64_t > >> +grub_f2fs_file_size (struct grub_f2fs_inode *inode) > >> +{ > >> + return grub_le_to_cpu64 (inode->i_size); > >> +} > >> + > >> +static inline grub_uint32_t > >> +__start_cp_addr (struct grub_f2fs_data *data) > >> +{ > >> + struct grub_f2fs_checkpoint *ckpt = &data->ckpt; > >> + grub_uint32_t start_addr = data->cp_blkaddr; > >> + > >> + if (!(ckpt->checkpoint_ver & grub_cpu_to_le64_compile_time(1))) > >> + return start_addr + data->blocks_per_seg; > >> + return start_addr; > >> +} > >> + > >> +static inline grub_uint32_t > >> +__start_sum_block (struct grub_f2fs_data *data) > >> +{ > >> + struct grub_f2fs_checkpoint *ckpt = &data->ckpt; > >> + > >> + return __start_cp_addr (data) + grub_le_to_cpu32 > >> (ckpt->cp_pack_start_sum); > >> +} > >> + > >> +static inline grub_uint32_t > >> +__sum_blk_addr (struct grub_f2fs_data *data, int base, int type) > >> +{ > >> + struct grub_f2fs_checkpoint *ckpt = &data->ckpt; > >> + > >> + return __start_cp_addr (data) + > >> + grub_le_to_cpu32 (ckpt->cp_pack_total_block_count) > >> + - (base + 1) + type; > >> +} > >> + > >> +static inline void * > >> +__nat_bitmap_ptr (struct grub_f2fs_data *data) > >> +{ > >> + struct grub_f2fs_checkpoint *ckpt = &data->ckpt; > >> + grub_uint32_t offset; > >> + > >> + if (grub_le_to_cpu32 (data->sblock.cp_payload) > 0) > >> + return ckpt->sit_nat_version_bitmap; > >> + > >> + offset = grub_le_to_cpu32 (ckpt->sit_ver_bitmap_bytesize); > >> + return ckpt->sit_nat_version_bitmap + offset; > >> +} > >> + > >> +static inline grub_uint32_t > >> +__get_node_id (struct grub_f2fs_node *rn, int off, int inode_block) > >> +{ > >> + if (inode_block) > >> + return grub_le_to_cpu32 (rn->i.i_nid[off - NODE_DIR1_BLOCK]); > >> + return grub_le_to_cpu32 (rn->in.nid[off]); > >> +} > >> + > >> +static inline grub_err_t > >> +grub_f2fs_block_read (struct grub_f2fs_data *data, grub_uint32_t blkaddr, > >> void *buf) > >> +{ > >> + return grub_disk_read (data->disk, > >> + ((grub_disk_addr_t)blkaddr) << F2FS_BLK_SEC_BITS, > >> + 0, F2FS_BLKSIZE, buf); > >> +} > >> + > >> +/* > >> + * CRC32 > >> +*/ > >> +#define CRCPOLY_LE 0xedb88320 > >> + > >> +static inline grub_uint32_t > >> +grub_f2fs_cal_crc32 (const void *buf, const grub_uint32_t len) > >> +{ > >> + grub_uint32_t crc = F2FS_SUPER_MAGIC; > >> + unsigned char *p = (unsigned char *)buf; > >> + grub_uint32_t tmp = len; > >> + int i; > >> + > >> + while (tmp--) > >> + { > >> + crc ^= *p++; > >> + for (i = 0; i < 8; i++) > >> + crc = (crc >> 1) ^ ((crc & 1) ? CRCPOLY_LE : 0); > >> + } > >> + return crc; > >> +} > >> + > >> +static inline int > >> +grub_f2fs_crc_valid (grub_uint32_t blk_crc, void *buf, const > >> grub_uint32_t len) > >> +{ > >> + grub_uint32_t cal_crc = 0; > >> + > >> + cal_crc = grub_f2fs_cal_crc32 (buf, len); > >> + > >> + return (cal_crc == blk_crc) ? 1 : 0; > >> +} > >> + > >> +static inline int > >> +grub_f2fs_test_bit (grub_uint32_t nr, const char *p) > >> +{ > >> + int mask; > >> + > >> + p += (nr >> 3); > >> + mask = 1 << (7 - (nr & 0x07)); > >> + return mask & *p; > >> +} > >> + > >> +static int > >> +grub_f2fs_sanity_check_sb (struct grub_f2fs_superblock *sb) > >> +{ > >> + grub_uint32_t log_sectorsize, log_sectors_per_block; > >> + > >> + if (sb->magic != grub_cpu_to_le32_compile_time (F2FS_SUPER_MAGIC)) > >> + return -1; > >> + > >> + if (sb->log_blocksize != grub_cpu_to_le32_compile_time (F2FS_BLK_BITS)) > >> + return -1; > >> + > >> + log_sectorsize = grub_le_to_cpu32 (sb->log_sectorsize); > >> + log_sectors_per_block = grub_le_to_cpu32 (sb->log_sectors_per_block); > >> + > >> + if (log_sectorsize > F2FS_BLK_BITS) > >> + return -1; > >> + > >> + if (log_sectorsize < F2FS_MIN_LOG_SECTOR_SIZE) > >> + return -1; > >> + > >> + if (log_sectors_per_block + log_sectorsize != F2FS_BLK_BITS) > >> + return -1; > >> + > >> + return 0; > >> +} > >> + > >> +static int > >> +grub_f2fs_read_sb (struct grub_f2fs_data *data, grub_disk_addr_t offset) > >> +{ > >> + grub_disk_t disk = data->disk; > >> + grub_err_t err; > >> + > >> + /* Read first super block. */ > >> + err = grub_disk_read (disk, offset, 0, sizeof (data->sblock), > >> &data->sblock); > >> + if (err) > >> + return -1; > >> + > >> + return grub_f2fs_sanity_check_sb (&data->sblock); > >> +} > >> + > >> +static void * > >> +validate_checkpoint (struct grub_f2fs_data *data, grub_uint32_t cp_addr, > >> + grub_uint64_t *version) > >> +{ > >> + grub_uint32_t *cp_page_1, *cp_page_2; > >> + struct grub_f2fs_checkpoint *cp_block; > >> + grub_uint64_t cur_version = 0, pre_version = 0; > >> + grub_uint32_t crc = 0; > >> + grub_uint32_t crc_offset; > >> + grub_err_t err; > >> + > >> + /* Read the 1st cp block in this CP pack */ > >> + cp_page_1 = grub_malloc (F2FS_BLKSIZE); > >> + if (!cp_page_1) > >> + return NULL; > >> + > >> + err = grub_f2fs_block_read (data, cp_addr, cp_page_1); > >> + if (err) > >> + goto invalid_cp1; > >> + > >> + cp_block = (struct grub_f2fs_checkpoint *)cp_page_1; > >> + crc_offset = grub_le_to_cpu32 (cp_block->checksum_offset); > >> + if (crc_offset != CHECKSUM_OFFSET) > >> + goto invalid_cp1; > >> + > >> + crc = grub_le_to_cpu32 (*(cp_page_1 + U32_CHECKSUM_OFFSET)); > >> + if (!grub_f2fs_crc_valid (crc, cp_block, crc_offset)) > >> + goto invalid_cp1; > >> + > >> + pre_version = grub_le_to_cpu64 (cp_block->checkpoint_ver); > >> + > >> + /* Read the 2nd cp block in this CP pack */ > >> + cp_page_2 = grub_malloc (F2FS_BLKSIZE); > >> + if (!cp_page_2) > >> + goto invalid_cp1; > >> + > >> + cp_addr += grub_le_to_cpu32 (cp_block->cp_pack_total_block_count) - 1; > >> + > >> + err = grub_f2fs_block_read (data, cp_addr, cp_page_2); > >> + if (err) > >> + goto invalid_cp2; > >> + > >> + cp_block = (struct grub_f2fs_checkpoint *)cp_page_2; > >> + crc_offset = grub_le_to_cpu32 (cp_block->checksum_offset); > >> + if (crc_offset != CHECKSUM_OFFSET) > >> + goto invalid_cp2; > >> + > >> + crc = grub_le_to_cpu32 (*(cp_page_2 + U32_CHECKSUM_OFFSET)); > >> + if (!grub_f2fs_crc_valid (crc, cp_block, crc_offset)) > >> + goto invalid_cp2; > >> + > >> + cur_version = grub_le_to_cpu64 (cp_block->checkpoint_ver); > >> + if (cur_version == pre_version) > >> + { > >> + *version = cur_version; > >> + grub_free (cp_page_2); > >> + return cp_page_1; > >> + } > >> + > >> +invalid_cp2: > >> + grub_free (cp_page_2); > >> +invalid_cp1: > >> + grub_free (cp_page_1); > >> + return NULL; > >> +} > >> + > >> +static grub_err_t > >> +grub_f2fs_read_cp (struct grub_f2fs_data *data) > >> +{ > >> + void *cp1, *cp2, *cur_page; > >> + grub_uint64_t cp1_version = 0, cp2_version = 0; > >> + grub_uint64_t cp_start_blk_no; > >> + > >> + /* > >> + * Finding out valid cp block involves read both > >> + * sets (cp pack1 and cp pack 2) > >> + */ > >> + cp_start_blk_no = data->cp_blkaddr; > >> + cp1 = validate_checkpoint (data, cp_start_blk_no, &cp1_version); > >> + if (!cp1 && grub_errno) > >> + return grub_errno; > >> + > >> + /* The second checkpoint pack should start at the next segment */ > >> + cp_start_blk_no += data->blocks_per_seg; > >> + cp2 = validate_checkpoint (data, cp_start_blk_no, &cp2_version); > >> + if (!cp2 && grub_errno) > >> + { > >> + grub_free (cp1); > >> + return grub_errno; > >> + } > >> + > >> + if (cp1 && cp2) > >> + cur_page = (cp2_version > cp1_version) ? cp2 : cp1; > >> + else if (cp1) > >> + cur_page = cp1; > >> + else if (cp2) > >> + cur_page = cp2; > >> + else > >> + return grub_error (GRUB_ERR_BAD_FS, "no checkpoints"); > >> + > >> + grub_memcpy (&data->ckpt, cur_page, F2FS_BLKSIZE); > >> + > >> + grub_free (cp1); > >> + grub_free (cp2); > >> + return 0; > >> +} > >> + > >> +static grub_err_t > >> +get_nat_journal (struct grub_f2fs_data *data) > >> +{ > >> + grub_uint32_t block; > >> + char *buf; > >> + grub_err_t err; > >> + > >> + buf = grub_malloc (F2FS_BLKSIZE); > >> + if (!buf) > >> + return grub_errno; > >> + > >> + if (CKPT_FLAG_SET(&data->ckpt, CP_COMPACT_SUM_FLAG)) > >> + block = __start_sum_block (data); > >> + else if (CKPT_FLAG_SET (&data->ckpt, CP_UMOUNT_FLAG)) > >> + block = __sum_blk_addr (data, NR_CURSEG_TYPE, CURSEG_HOT_DATA); > >> + else > >> + block = __sum_blk_addr (data, NR_CURSEG_DATA_TYPE, CURSEG_HOT_DATA); > >> + > >> + err = grub_f2fs_block_read (data, block, buf); > >> + if (err) > >> + goto fail; > >> + > >> + if (CKPT_FLAG_SET (&data->ckpt, CP_COMPACT_SUM_FLAG)) > >> + grub_memcpy (&data->nat_j, buf, SUM_JOURNAL_SIZE); > >> + else > >> + grub_memcpy (&data->nat_j, buf + SUM_ENTRIES_SIZE, SUM_JOURNAL_SIZE); > >> + > >> +fail: > >> + grub_free (buf); > >> + return err; > >> +} > >> + > >> +static grub_uint32_t > >> +get_blkaddr_from_nat_journal (struct grub_f2fs_data *data, grub_uint32_t > >> nid) > >> +{ > >> + grub_uint16_t n = grub_le_to_cpu16 (data->nat_j.n_nats); > >> + grub_uint32_t blkaddr = 0; > >> + grub_uint16_t i; > >> + > >> + for (i = 0; i < n; i++) > >> + { > >> + if (grub_le_to_cpu32 (data->nat_j.entries[i].nid) == nid) > >> + { > >> + blkaddr = grub_le_to_cpu32 > >> (data->nat_j.entries[i].ne.block_addr); > >> + break; > >> + } > >> + } > >> + return blkaddr; > >> +} > >> + > >> +static grub_uint32_t > >> +get_node_blkaddr (struct grub_f2fs_data *data, grub_uint32_t nid) > >> +{ > >> + struct grub_f2fs_nat_block *nat_block; > >> + grub_uint32_t seg_off, block_off, entry_off, block_addr; > >> + grub_uint32_t blkaddr; > >> + grub_err_t err; > >> + > >> + blkaddr = get_blkaddr_from_nat_journal (data, nid); > >> + if (blkaddr) > >> + return blkaddr; > >> + > >> + nat_block = grub_malloc (F2FS_BLKSIZE); > >> + if (!nat_block) > >> + return 0; > >> + > >> + block_off = nid / NAT_ENTRY_PER_BLOCK; > >> + entry_off = nid % NAT_ENTRY_PER_BLOCK; > >> + > >> + seg_off = block_off / data->blocks_per_seg; > >> + block_addr = data->nat_blkaddr + > >> + ((seg_off * data->blocks_per_seg) << 1) + > >> + (block_off & (data->blocks_per_seg - 1)); > >> + > >> + if (grub_f2fs_test_bit (block_off, data->nat_bitmap)) > >> + block_addr += data->blocks_per_seg; > >> + > >> + err = grub_f2fs_block_read (data, block_addr, nat_block); > >> + if (err) > >> + { > >> + grub_free (nat_block); > >> + return 0; > >> + } > >> + > >> + blkaddr = grub_le_to_cpu32 (nat_block->ne[entry_off].block_addr); > >> + > >> + grub_free (nat_block); > >> + > >> + return blkaddr; > >> +} > >> + > >> +static int > >> +grub_get_node_path (struct grub_f2fs_inode *inode, grub_uint32_t block, > >> + grub_uint32_t offset[4], grub_uint32_t noffset[4]) > >> +{ > >> + grub_uint32_t direct_blks = ADDRS_PER_BLOCK; > >> + grub_uint32_t dptrs_per_blk = NIDS_PER_BLOCK; > >> + grub_uint32_t indirect_blks = ADDRS_PER_BLOCK * NIDS_PER_BLOCK; > >> + grub_uint32_t dindirect_blks = indirect_blks * NIDS_PER_BLOCK; > >> + grub_uint32_t direct_index = DEF_ADDRS_PER_INODE; > >> + int n = 0; > >> + int level = 0; > >> + > >> + if (inode->i_inline & F2FS_INLINE_XATTR) > >> + direct_index -= F2FS_INLINE_XATTR_ADDRS; > >> + > >> + noffset[0] = 0; > >> + > >> + if (block < direct_index) > >> + { > >> + offset[n] = block; > >> + goto got; > >> + } > >> + > >> + block -= direct_index; > >> + if (block < direct_blks) > >> + { > >> + offset[n++] = NODE_DIR1_BLOCK; > >> + noffset[n] = 1; > >> + offset[n] = block; > >> + level = 1; > >> + goto got; > >> + } > >> + > >> + block -= direct_blks; > >> + if (block < direct_blks) > >> + { > >> + offset[n++] = NODE_DIR2_BLOCK; > >> + noffset[n] = 2; > >> + offset[n] = block; > >> + level = 1; > >> + goto got; > >> + } > >> + > >> + block -= direct_blks; > >> + if (block < indirect_blks) > >> + { > >> + offset[n++] = NODE_IND1_BLOCK; > >> + noffset[n] = 3; > >> + offset[n++] = block / direct_blks; > >> + noffset[n] = 4 + offset[n - 1]; > >> + offset[n] = block % direct_blks; > >> + level = 2; > >> + goto got; > >> + } > >> + > >> + block -= indirect_blks; > >> + if (block < indirect_blks) > >> + { > >> + offset[n++] = NODE_IND2_BLOCK; > >> + noffset[n] = 4 + dptrs_per_blk; > >> + offset[n++] = block / direct_blks; > >> + noffset[n] = 5 + dptrs_per_blk + offset[n - 1]; > >> + offset[n] = block % direct_blks; > >> + level = 2; > >> + goto got; > >> + } > >> + > >> + block -= indirect_blks; > >> + if (block < dindirect_blks) > >> + { > >> + offset[n++] = NODE_DIND_BLOCK; > >> + noffset[n] = 5 + (dptrs_per_blk * 2); > >> + offset[n++] = block / indirect_blks; > >> + noffset[n] = 6 + (dptrs_per_blk * 2) + > >> + offset[n - 1] * (dptrs_per_blk + 1); > >> + offset[n++] = (block / direct_blks) % dptrs_per_blk; > >> + noffset[n] = 7 + (dptrs_per_blk * 2) + > >> + offset[n - 2] * (dptrs_per_blk + 1) + offset[n - 1]; > >> + offset[n] = block % direct_blks; > >> + level = 3; > >> + goto got; > >> + } > >> +got: > >> + return level; > >> +} > >> + > >> +static grub_err_t > >> +grub_f2fs_read_node (struct grub_f2fs_data *data, > >> + grub_uint32_t nid, struct grub_f2fs_node *np) > >> +{ > >> + grub_uint32_t blkaddr; > >> + > >> + blkaddr = get_node_blkaddr (data, nid); > >> + if (!blkaddr) > >> + return grub_errno; > >> + > >> + return grub_f2fs_block_read (data, blkaddr, np); > >> +} > >> + > >> +static struct grub_f2fs_data * > >> +grub_f2fs_mount (grub_disk_t disk) > >> +{ > >> + struct grub_f2fs_data *data; > >> + grub_err_t err; > >> + > >> + data = grub_malloc (sizeof (*data)); > >> + if (!data) > >> + return NULL; > >> + > >> + data->disk = disk; > >> + > >> + if (grub_f2fs_read_sb (data, F2FS_SUPER_OFFSET0)) > >> + { > >> + if (grub_f2fs_read_sb (data, F2FS_SUPER_OFFSET1)) > >> + { > >> + if (grub_errno == GRUB_ERR_NONE) > >> + grub_error (GRUB_ERR_BAD_FS, > >> + "not a F2FS filesystem (no superblock)"); > >> + goto fail; > >> + } > >> + } > >> + > >> + data->root_ino = grub_le_to_cpu32 (data->sblock.root_ino); > >> + data->cp_blkaddr = grub_le_to_cpu32 (data->sblock.cp_blkaddr); > >> + data->nat_blkaddr = grub_le_to_cpu32 (data->sblock.nat_blkaddr); > >> + data->blocks_per_seg = 1 << > >> + grub_le_to_cpu32 (data->sblock.log_blocks_per_seg); > >> + > >> + err = grub_f2fs_read_cp (data); > >> + if (err) > >> + goto fail; > >> + > >> + data->nat_bitmap = __nat_bitmap_ptr (data); > >> + > >> + err = get_nat_journal (data); > >> + if (err) > >> + goto fail; > >> + > >> + data->diropen.data = data; > >> + data->diropen.ino = data->root_ino; > >> + data->diropen.inode_read = 1; > >> + data->inode = &data->diropen.inode; > >> + > >> + err = grub_f2fs_read_node (data, data->root_ino, data->inode); > >> + if (err) > >> + goto fail; > >> + > >> + return data; > >> + > >> +fail: > >> + grub_free (data); > >> + return NULL; > >> +} > >> + > >> +/* guarantee inline_data was handled by caller */ > >> +static grub_disk_addr_t > >> +grub_f2fs_get_block (grub_fshelp_node_t node, grub_disk_addr_t block_ofs) > >> +{ > >> + struct grub_f2fs_data *data = node->data; > >> + struct grub_f2fs_inode *inode = &node->inode.i; > >> + grub_uint32_t offset[4], noffset[4], nids[4]; > >> + struct grub_f2fs_node *node_block; > >> + grub_uint32_t block_addr = -1; > >> + int level, i; > >> + > >> + level = grub_get_node_path (inode, block_ofs, offset, noffset); > >> + if (level == 0) > >> + return grub_le_to_cpu32 (inode->i_addr[offset[0]]); > >> + > >> + node_block = grub_malloc (F2FS_BLKSIZE); > >> + if (!node_block) > >> + return -1; > >> + > >> + nids[1] = __get_node_id (&node->inode, offset[0], 1); > >> + > >> + /* get indirect or direct nodes */ > >> + for (i = 1; i <= level; i++) > >> + { > >> + grub_f2fs_read_node (data, nids[i], node_block); > >> + if (grub_errno) > >> + goto fail; > >> + > >> + if (i < level) > >> + nids[i + 1] = __get_node_id (node_block, offset[i], 0); > >> + } > >> + > >> + block_addr = grub_le_to_cpu32 (node_block->dn.addr[offset[level]]); > >> +fail: > >> + grub_free (node_block); > >> + return block_addr; > >> +} > >> + > >> +static grub_ssize_t > >> +grub_f2fs_read_file (grub_fshelp_node_t node, > >> + grub_disk_read_hook_t read_hook, void *read_hook_data, > >> + grub_off_t pos, grub_size_t len, char *buf) > >> +{ > >> + struct grub_f2fs_inode *inode = &node->inode.i; > >> + grub_off_t filesize = grub_f2fs_file_size (inode); > >> + char *inline_addr = __inline_addr (inode); > >> + > >> + if (inode->i_inline & F2FS_INLINE_DATA) > >> + { > >> + if (filesize > MAX_INLINE_DATA) > >> + return -1; > >> + if (len > filesize - pos) > >> + len = filesize - pos; > >> + > >> + grub_memcpy (buf, inline_addr + pos, len); > >> + return len; > >> + } > >> + > >> + return grub_fshelp_read_file (node->data->disk, node, > >> + read_hook, read_hook_data, > >> + pos, len, buf, grub_f2fs_get_block, > >> + filesize, > >> + F2FS_BLK_SEC_BITS, 0); > >> +} > >> + > >> +static char * > >> +grub_f2fs_read_symlink (grub_fshelp_node_t node) > >> +{ > >> + char *symlink; > >> + struct grub_fshelp_node *diro = node; > >> + grub_uint64_t filesize; > >> + > >> + if (!diro->inode_read) > >> + { > >> + grub_f2fs_read_node (diro->data, diro->ino, &diro->inode); > >> + if (grub_errno) > >> + return 0; > >> + } > >> + > >> + filesize = grub_f2fs_file_size(&diro->inode.i); > >> + > >> + symlink = grub_malloc (filesize + 1); > >> + if (!symlink) > >> + return 0; > >> + > >> + grub_f2fs_read_file (diro, 0, 0, 0, filesize, symlink); > >> + if (grub_errno) > >> + { > >> + grub_free (symlink); > >> + return 0; > >> + } > >> + > >> + symlink[filesize] = '\0'; > >> + return symlink; > >> +} > >> + > >> +static int > >> +grub_f2fs_check_dentries (struct grub_f2fs_dir_iter_ctx *ctx) > >> +{ > >> + struct grub_fshelp_node *fdiro; > >> + int i; > >> + > >> + for (i = 0; i < ctx->max;) > >> + { > >> + char *filename; > >> + enum grub_fshelp_filetype type = GRUB_FSHELP_UNKNOWN; > >> + enum FILE_TYPE ftype; > >> + int name_len; > >> + int ret; > >> + > >> + if (grub_f2fs_test_bit_le (i, ctx->bitmap) == 0) > >> + { > >> + i++; > >> + continue; > >> + } > >> + > >> + ftype = ctx->dentry[i].file_type; > >> + name_len = grub_le_to_cpu16 (ctx->dentry[i].name_len); > >> + filename = grub_malloc (name_len + 1); > >> + if (!filename) > >> + return 0; > >> + > >> + grub_memcpy (filename, ctx->filename[i], name_len); > >> + filename[name_len] = 0; > >> + > >> + fdiro = grub_malloc (sizeof (struct grub_fshelp_node)); > >> + if (!fdiro) > >> + { > >> + grub_free(filename); > >> + return 0; > >> + } > >> + > >> + if (ftype == F2FS_FT_DIR) > >> + type = GRUB_FSHELP_DIR; > >> + else if (ftype == F2FS_FT_SYMLINK) > >> + type = GRUB_FSHELP_SYMLINK; > >> + else if (ftype == F2FS_FT_REG_FILE) > >> + type = GRUB_FSHELP_REG; > >> + > >> + fdiro->data = ctx->data; > >> + fdiro->ino = grub_le_to_cpu32 (ctx->dentry[i].ino); > >> + fdiro->inode_read = 0; > >> + > >> + ret = ctx->hook (filename, type, fdiro, ctx->hook_data); > >> + grub_free(filename); > >> + if (ret) > >> + return 1; > >> + > >> + i += (name_len + F2FS_SLOT_LEN - 1) / F2FS_SLOT_LEN; > >> + } > >> + return 0; > >> +} > >> + > >> +static int > >> +grub_f2fs_iterate_inline_dir (struct grub_f2fs_inode *dir, > >> + struct grub_f2fs_dir_iter_ctx *ctx) > >> +{ > >> + struct grub_f2fs_inline_dentry *de_blk; > >> + > >> + de_blk = (struct grub_f2fs_inline_dentry *) __inline_addr (dir); > >> + > >> + ctx->bitmap = de_blk->dentry_bitmap; > >> + ctx->dentry = de_blk->dentry; > >> + ctx->filename = de_blk->filename; > >> + ctx->max = NR_INLINE_DENTRY; > >> + > >> + return grub_f2fs_check_dentries (ctx); > >> +} > >> + > >> +static int > >> +grub_f2fs_iterate_dir (grub_fshelp_node_t dir, > >> + grub_fshelp_iterate_dir_hook_t hook, void *hook_data) > >> +{ > >> + struct grub_fshelp_node *diro = (struct grub_fshelp_node *) dir; > >> + struct grub_f2fs_inode *inode; > >> + struct grub_f2fs_dir_iter_ctx ctx = { > >> + .data = diro->data, > >> + .hook = hook, > >> + .hook_data = hook_data > >> + }; > >> + grub_off_t fpos = 0; > >> + > >> + if (!diro->inode_read) > >> + { > >> + grub_f2fs_read_node (diro->data, diro->ino, &diro->inode); > >> + if (grub_errno) > >> + return 0; > >> + } > >> + > >> + inode = &diro->inode.i; > >> + > >> + if (inode->i_inline & F2FS_INLINE_DENTRY) > >> + return grub_f2fs_iterate_inline_dir (inode, &ctx); > >> + > >> + while (fpos < grub_f2fs_file_size (inode)) > >> + { > >> + struct grub_f2fs_dentry_block *de_blk; > >> + char *buf; > >> + int ret; > >> + > >> + buf = grub_zalloc (F2FS_BLKSIZE); > >> + if (!buf) > >> + return 0; > >> + > >> + grub_f2fs_read_file (diro, 0, 0, fpos, F2FS_BLKSIZE, buf); > >> + if (grub_errno) > >> + { > >> + grub_free (buf); > >> + return 0; > >> + } > >> + > >> + de_blk = (struct grub_f2fs_dentry_block *) buf; > >> + > >> + ctx.bitmap = de_blk->dentry_bitmap; > >> + ctx.dentry = de_blk->dentry; > >> + ctx.filename = de_blk->filename; > >> + ctx.max = NR_DENTRY_IN_BLOCK; > >> + > >> + ret = grub_f2fs_check_dentries (&ctx); > >> + grub_free (buf); > >> + if (ret) > >> + return 1; > >> + > >> + fpos += F2FS_BLKSIZE; > >> + } > >> + return 0; > >> +} > >> + > >> +static int > >> +grub_f2fs_dir_iter (const char *filename, enum grub_fshelp_filetype > >> filetype, > >> + grub_fshelp_node_t node, void *data) > >> +{ > >> + struct grub_f2fs_dir_ctx *ctx = data; > >> + struct grub_dirhook_info info; > >> + > >> + grub_memset (&info, 0, sizeof (info)); > >> + if (!node->inode_read) > >> + { > >> + grub_f2fs_read_node (ctx->data, node->ino, &node->inode); > >> + if (!grub_errno) > >> + node->inode_read = 1; > >> + grub_errno = GRUB_ERR_NONE; > >> + } > >> + if (node->inode_read) > >> + { > >> + info.mtimeset = 1; > >> + info.mtime = grub_le_to_cpu64 (node->inode.i.i_mtime); > >> + } > >> + > >> + info.dir = ((filetype & GRUB_FSHELP_TYPE_MASK) == GRUB_FSHELP_DIR); > >> + grub_free (node); > >> + return ctx->hook (filename, &info, ctx->hook_data); > >> +} > >> + > >> +static grub_err_t > >> +grub_f2fs_dir (grub_device_t device, const char *path, > >> + grub_fs_dir_hook_t hook, void *hook_data) > >> +{ > >> + struct grub_f2fs_dir_ctx ctx = { > >> + .hook = hook, > >> + .hook_data = hook_data > >> + }; > >> + struct grub_fshelp_node *fdiro = 0; > >> + > >> + grub_dl_ref (my_mod); > >> + > >> + ctx.data = grub_f2fs_mount (device->disk); > >> + if (!ctx.data) > >> + goto fail; > >> + > >> + grub_fshelp_find_file (path, &ctx.data->diropen, &fdiro, > >> + grub_f2fs_iterate_dir, grub_f2fs_read_symlink, > >> + GRUB_FSHELP_DIR); > >> + if (grub_errno) > >> + goto fail; > >> + > >> + grub_f2fs_iterate_dir (fdiro, grub_f2fs_dir_iter, &ctx); > >> + > >> +fail: > >> + if (fdiro != &ctx.data->diropen) > >> + grub_free (fdiro); > >> + grub_free (ctx.data); > >> + grub_dl_unref (my_mod); > >> + return grub_errno; > >> +} > >> + > >> + > >> +/* Open a file named NAME and initialize FILE. */ > >> +static grub_err_t > >> +grub_f2fs_open (struct grub_file *file, const char *name) > >> +{ > >> + struct grub_f2fs_data *data = NULL; > >> + struct grub_fshelp_node *fdiro = 0; > >> + struct grub_f2fs_inode *inode; > >> + > >> + grub_dl_ref (my_mod); > >> + > >> + data = grub_f2fs_mount (file->device->disk); > >> + if (!data) > >> + goto fail; > >> + > >> + grub_fshelp_find_file (name, &data->diropen, &fdiro, > >> + grub_f2fs_iterate_dir, grub_f2fs_read_symlink, > >> + GRUB_FSHELP_REG); > >> + if (grub_errno) > >> + goto fail; > >> + > >> + if (!fdiro->inode_read) > >> + { > >> + grub_f2fs_read_node (data, fdiro->ino, &fdiro->inode); > >> + if (grub_errno) > >> + goto fail; > >> + } > >> + > >> + grub_memcpy (data->inode, &fdiro->inode, sizeof (*data->inode)); > >> + grub_free (fdiro); > >> + > >> + inode = &(data->inode->i); > >> + file->size = grub_f2fs_file_size (inode); > >> + file->data = data; > >> + file->offset = 0; > >> + > >> + if (inode->i_inline & F2FS_INLINE_DATA && file->size > MAX_INLINE_DATA) > >> + grub_error (GRUB_ERR_BAD_FS, "corrupted inline_data: need fsck"); > >> + return 0; > >> + > >> +fail: > >> + if (fdiro != &data->diropen) > >> + grub_free (fdiro); > >> + grub_free (data); > >> + > >> + grub_dl_unref (my_mod); > >> + > >> + return grub_errno; > >> +} > >> + > >> +static grub_ssize_t > >> +grub_f2fs_read (grub_file_t file, char *buf, grub_size_t len) > >> +{ > >> + struct grub_f2fs_data *data = (struct grub_f2fs_data *) file->data; > >> + > >> + return grub_f2fs_read_file (&data->diropen, > >> + file->read_hook, file->read_hook_data, > >> + file->offset, len, buf); > >> +} > >> + > >> +static grub_err_t > >> +grub_f2fs_close (grub_file_t file) > >> +{ > >> + struct grub_f2fs_data *data = (struct grub_f2fs_data *) file->data; > >> + > >> + grub_free (data); > >> + > >> + grub_dl_unref (my_mod); > >> + > >> + return GRUB_ERR_NONE; > >> +} > >> + > >> +static grub_uint8_t * > >> +grub_f2fs_utf16_to_utf8 (grub_uint16_t *in_buf_le) > >> +{ > >> + grub_uint16_t in_buf[MAX_VOLUME_NAME]; > >> + grub_uint8_t *out_buf; > >> + int len = 0; > >> + > >> + out_buf = grub_malloc (MAX_VOLUME_NAME * GRUB_MAX_UTF8_PER_UTF16 + 1); > >> + if (!out_buf) > >> + return NULL; > >> + > >> + while (*in_buf_le != 0 && len < MAX_VOLUME_NAME) { > >> + in_buf[len] = grub_le_to_cpu16 (in_buf_le[len]); > >> + len++; > >> + } > >> + > >> + *grub_utf16_to_utf8 (out_buf, in_buf, len) = '\0'; > >> + return out_buf; > >> +} > >> + > >> +static grub_err_t > >> +grub_f2fs_label (grub_device_t device, char **label) > >> +{ > >> + struct grub_f2fs_data *data; > >> + grub_disk_t disk = device->disk; > >> + > >> + grub_dl_ref (my_mod); > >> + > >> + data = grub_f2fs_mount (disk); > >> + if (data) > >> + *label = (char *) grub_f2fs_utf16_to_utf8 (data->sblock.volume_name); > >> + else > >> + *label = NULL; > >> + > >> + grub_free (data); > >> + grub_dl_unref (my_mod); > >> + return grub_errno; > >> +} > >> + > >> +static grub_err_t > >> +grub_f2fs_uuid (grub_device_t device, char **uuid) > >> +{ > >> + struct grub_f2fs_data *data; > >> + grub_disk_t disk = device->disk; > >> + > >> + grub_dl_ref (my_mod); > >> + > >> + data = grub_f2fs_mount (disk); > >> + if (data) > >> + { > >> + *uuid = > >> + grub_xasprintf > >> + > >> ("%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x", > >> + data->sblock.uuid[0], data->sblock.uuid[1], > >> + data->sblock.uuid[2], data->sblock.uuid[3], > >> + data->sblock.uuid[4], data->sblock.uuid[5], > >> + data->sblock.uuid[6], data->sblock.uuid[7], > >> + data->sblock.uuid[8], data->sblock.uuid[9], > >> + data->sblock.uuid[10], data->sblock.uuid[11], > >> + data->sblock.uuid[12], data->sblock.uuid[13], > >> + data->sblock.uuid[14], data->sblock.uuid[15]); > >> + } > >> + else > >> + *uuid = NULL; > >> + > >> + grub_free (data); > >> + grub_dl_unref (my_mod); > >> + return grub_errno; > >> +} > >> + > >> +static struct grub_fs grub_f2fs_fs = { > >> + .name = "f2fs", > >> + .dir = grub_f2fs_dir, > >> + .open = grub_f2fs_open, > >> + .read = grub_f2fs_read, > >> + .close = grub_f2fs_close, > >> + .label = grub_f2fs_label, > >> + .uuid = grub_f2fs_uuid, > >> +#ifdef GRUB_UTIL > >> + .reserved_first_sector = 1, > >> + .blocklist_install = 0, > >> +#endif > >> + .next = 0 > >> +}; > >> + > >> +GRUB_MOD_INIT (f2fs) > >> +{ > >> + grub_fs_register (&grub_f2fs_fs); > >> + my_mod = mod; > >> +} > >> + > >> +GRUB_MOD_FINI (f2fs) > >> +{ > >> + grub_fs_unregister (&grub_f2fs_fs); > >> +} > >> diff --git a/po/exclude.pot b/po/exclude.pot > >> index 0a9b215..816089c 100644 > >> --- a/po/exclude.pot > >> +++ b/po/exclude.pot > >> @@ -1214,6 +1214,7 @@ msgstr "" > >> > >> #: grub-core/commands/xnu_uuid.c:75 grub-core/fs/jfs.c:924 > >> #: grub-core/fs/nilfs2.c:1135 > >> +#: grub-core/fs/f2fs.c:1259 > >> #, c-format > >> msgid > >> "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x" > >> msgstr "" > >> diff --git a/tests/f2fs_test.in b/tests/f2fs_test.in > >> new file mode 100644 > >> index 0000000..1ea77c8 > >> --- /dev/null > >> +++ b/tests/f2fs_test.in > >> @@ -0,0 +1,19 @@ > >> +#!/bin/sh > >> + > >> +set -e > >> + > >> +if [ "x$EUID" = "x" ] ; then > >> + EUID=`id -u` > >> +fi > >> + > >> +if [ "$EUID" != 0 ] ; then > >> + exit 77 > >> +fi > >> + > >> +if ! which mkfs.f2fs >/dev/null 2>&1; then > >> + echo "mkfs.f2fs not installed; cannot test f2fs." > >> + exit 77 > >> +fi > >> + > >> + > >> +"@builddir@/grub-fs-tester" f2fs > >> diff --git a/tests/util/grub-fs-tester.in b/tests/util/grub-fs-tester.in > >> index 424de22..e3e4109 100644 > >> --- a/tests/util/grub-fs-tester.in > >> +++ b/tests/util/grub-fs-tester.in > >> @@ -142,7 +142,7 @@ for > >> ((LOGSECSIZE=MINLOGSECSIZE;LOGSECSIZE<=MAXLOGSECSIZE;LOGSECSIZE=LOGSECSIZE > >> + > >> xsquash*) > >> MINBLKSIZE=4096 > >> MAXBLKSIZE=1048576;; > >> - xxfs) > >> + xxfs|xf2fs) > >> MINBLKSIZE=$SECSIZE > >> # OS Limitation: GNU/Linux doesn't accept > 4096 > >> MAXBLKSIZE=4096;; > >> @@ -265,6 +265,10 @@ for > >> ((LOGSECSIZE=MINLOGSECSIZE;LOGSECSIZE<=MAXLOGSECSIZE;LOGSECSIZE=LOGSECSIZE > >> + > >> x"btrfs"*) > >> FSLABEL="grub_;/testé莭莽😁киритi > >> urewfceniuewruevrewnuuireurevueurnievrewfnerfcnevirivinrewvnirewnivrewiuvcrewvnuewvrrrewniuerwreiuviurewiuviurewnuvewnvrenurnunuvrevuurerejiremvreijnvcreivire > >> nverivnreivrevnureiorfnfrvoeoiroireoireoifrefoieroifoireoif";; > >> > >> + # FS LIMITATION: f2fs label is at most 512 UTF-16 chars > >> + x"f2fs") > >> + > >> FSLABEL="grub_;/testé䏌䐓䏕киритiurewfceniuewruewnuuireurevueurnievrewfnerfcnevirivinrewvnirewnivrewiuvcrewvnuewvrrrewniuerwreiuviurewiuviurewnuvewnvrenurnunuvrevuurerejiremvreijnvvcreivire > >> nverivnreivrevnureiorfnfrvoeoiroireoireoifrefoieroifoirvcreivire > >> nverivnreivrevnureiorfnfrvoeoiroireoireoifrefoieroifoircreivire > >> nverivnreivrevnureiorfnfrvoeoiroireoireoifrefoieroifoireoifoiq";; > >> + > >> # FS LIMITATION: exfat is at most 15 UTF-16 chars > >> x"exfat") > >> FSLABEL="géт ;/莭莽😁кир";; > >> @@ -474,7 +478,7 @@ for > >> ((LOGSECSIZE=MINLOGSECSIZE;LOGSECSIZE<=MAXLOGSECSIZE;LOGSECSIZE=LOGSECSIZE > >> + > >> # FIXME: Not sure about BtrFS, NTFS, JFS, AFS, UDF and SFS. > >> Check it. > >> # FS LIMITATION: as far as I know those FS don't store their last > >> modification date. > >> x"jfs_caseins" | x"jfs" | x"xfs" | x"xfs_crc" | x"btrfs"* | > >> x"reiserfs_old" | x"reiserfs" \ > >> - | x"bfs" | x"afs" \ > >> + | x"bfs" | x"afs" | x"f2fs" \ > >> | x"tarfs" | x"cpio_"* | x"minix" | x"minix2" \ > >> | x"minix3" | x"ntfs"* | x"udf" | x"sfs"*) > >> NOFSTIME=y;; > >> @@ -753,6 +757,8 @@ for > >> ((LOGSECSIZE=MINLOGSECSIZE;LOGSECSIZE<=MAXLOGSECSIZE;LOGSECSIZE=LOGSECSIZE > >> + > >> MOUNTDEVICE="/dev/mapper/grub_test-testvol" > >> MOUNTFS=ext2 > >> "mkfs.ext2" -L "$FSLABEL" -q "${MOUNTDEVICE}" ;; > >> + xf2fs) > >> + "mkfs.f2fs" -l "$FSLABEL" -q "${LODEVICES[0]}" ;; > >> xnilfs2) > >> "mkfs.nilfs2" -L "$FSLABEL" -b $BLKSIZE -q > >> "${LODEVICES[0]}" ;; > >> xext2_old) > >> -- > >> 2.6.3 > >> > >> > >> ------------------------------------------------------------------------------ > >> Site24x7 APM Insight: Get Deep Visibility into Application Performance > >> APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month > >> Monitor end-to-end web transactions and take corrective actions now > >> Troubleshoot faster and improve end-user experience. Signup Now! > >> http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140 > >> _______________________________________________ > >> Linux-f2fs-devel mailing list > >> linux-f2fs-de...@lists.sourceforge.net > >> https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
