> BTW, I've heard that openmandriva adopted this patch to support F2FS in their installer.
And I've ported it to clover's GrubFSPkg which I'm using for EFIDroid :) Your timing was really perfect. The day I needed f2fs support I found your V1 in the mailing list :D https://github.com/efidroid/uefi_edk2packages_GrubFSPkg/blob/master/grub/grub-core/fs/f2fs.c Thanks Michael On Fri, Aug 5, 2016 at 8:07 PM, Jaegeuk Kim <jaeg...@kernel.org> wrote: > 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=$SECSIZE > > >> # OS Limitation: GNU/Linux doesn't accept > 4096 > > >> MAXBLKSIZE=4096;; > > >> @@ -265,6 +265,10 @@ for ((LOGSECSIZE=MINLOGSECSIZE; > LOGSECSIZE<=MAXLOGSECSIZE;LOGSECSIZE=LOGSECSIZE + > > >> x"btrfs"*) > > >> FSLABEL="grub_;/testé莭莽😁киритi > urewfceniuewruevrewnuuireurevueurnievrewfnerfcnevirivinrewvn > irewnivrewiuvcrewvnuewvrrrewniuerwreiuviurewiuviurewnuvewnvr > enurnunuvrevuurerejiremvreijnvcreivire nverivnreivrevnureiorfnfrvoeoi > roireoireoifrefoieroifoireoif";; > > >> > > >> + # FS LIMITATION: f2fs label is at most 512 UTF-16 chars > > >> + x"f2fs") > > >> + FSLABEL="grub_;/testé䏌䐓䏕киритiurewfceniuewruew > nuuireurevueurnievrewfnerfcnevirivinrewvnirewnivrewiuvcrewvn > uewvrrrewniuerwreiuviurewiuviurewnuvewnvrenurnunuvrevuurerejiremvreijnvvcreivire > nverivnreivrevnureiorfnfrvoeoiroireoireoifrefoieroifoirvcreivire > nverivnreivrevnureiorfnfrvoeoiroireoireoifrefoieroifoircreivire > nverivnreivrevnureiorfnfrvoeoiroireoireoifrefoieroifoireoifoiq";; > > >> + > > >> # FS LIMITATION: exfat is at most 15 UTF-16 chars > > >> x"exfat") > > >> FSLABEL="géт ;/莭莽😁кир";; > > >> @@ -474,7 +478,7 @@ for ((LOGSECSIZE=MINLOGSECSIZE; > LOGSECSIZE<=MAXLOGSECSIZE;LOGSECSIZE=LOGSECSIZE + > > >> # FIXME: Not sure about BtrFS, NTFS, JFS, AFS, UDF and SFS. > Check it. > > >> # FS LIMITATION: as far as I know those FS don't store their > last modification date. > > >> x"jfs_caseins" | x"jfs" | x"xfs" | x"xfs_crc" | > x"btrfs"* | x"reiserfs_old" | x"reiserfs" \ > > >> - | x"bfs" | x"afs" \ > > >> + | x"bfs" | x"afs" | x"f2fs" \ > > >> | x"tarfs" | x"cpio_"* | x"minix" | x"minix2" \ > > >> | x"minix3" | x"ntfs"* | x"udf" | x"sfs"*) > > >> NOFSTIME=y;; > > >> @@ -753,6 +757,8 @@ for ((LOGSECSIZE=MINLOGSECSIZE; > LOGSECSIZE<=MAXLOGSECSIZE;LOGSECSIZE=LOGSECSIZE + > > >> MOUNTDEVICE="/dev/mapper/grub_test-testvol" > > >> MOUNTFS=ext2 > > >> "mkfs.ext2" -L "$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 >
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