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[PATCH] F2FS support
|
From: |
Jaegeuk Kim |
|
Subject: |
[PATCH] F2FS support |
|
Date: |
Tue, 24 Mar 2015 01:19:00 -0700 |
* Makefile.util.def: Add f2fs.c.
* doc/grub.texi: Add f2fs description.
* grub-core/Makefile.core.def: Add f2fs module.
* grub-core/fs/f2fs.c: New file.
* tests/f2fs_test.in: New file.
* tests/util/grub-fs-tester.in: Add f2fs requirements.
Signed-off-by: Jaegeuk Kim <address@hidden>
---
ChangeLog-2015 | 11 +
Makefile.util.def | 7 +
docs/grub.texi | 5 +-
grub-core/Makefile.core.def | 5 +
grub-core/fs/f2fs.c | 1321 ++++++++++++++++++++++++++++++++++++++++++
po/exclude.pot | 1 +
tests/f2fs_test.in | 19 +
tests/util/grub-fs-tester.in | 14 +-
8 files changed, 1378 insertions(+), 5 deletions(-)
create mode 100644 grub-core/fs/f2fs.c
create mode 100644 tests/f2fs_test.in
diff --git a/ChangeLog-2015 b/ChangeLog-2015
index 869f6bf..59351de 100644
--- a/ChangeLog-2015
+++ b/ChangeLog-2015
@@ -1,3 +1,14 @@
+2015-03-12 Jaegeuk Kim <address@hidden>
+
+ F2FS support.
+
+ * Makefile.util.def: Add f2fs.c.
+ * doc/grub.texi: Add f2fs description.
+ * grub-core/Makefile.core.def: Add f2fs module.
+ * grub-core/fs/f2fs.c: New file.
+ * tests/f2fs_test.in: New file.
+ * tests/util/grub-fs-tester.in: Add f2fs requirements.
+
2015-01-23 Vladimir Serbinenko <address@hidden>
* tests/file_filter/file: Really add missing file.
diff --git a/Makefile.util.def b/Makefile.util.def
index 67dfb29..0b17907 100644
--- a/Makefile.util.def
+++ b/Makefile.util.def
@@ -98,6 +98,7 @@ library = {
common = grub-core/fs/newc.c;
common = grub-core/fs/ext2.c;
common = grub-core/fs/fat.c;
+ common = grub-core/fs/f2fs.c;
common = grub-core/fs/exfat.c;
common = grub-core/fs/fshelp.c;
common = grub-core/fs/hfs.c;
@@ -767,6 +768,12 @@ 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 46b9e7f..edf4eea 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),
address@hidden ext2/ext3/ext4}, @dfn{DOS FAT12/FAT16/FAT32}, @dfn{exFAT},
@dfn{HFS},
address@hidden ext2/ext3/ext4}, @dfn{DOS FAT12/FAT16/FAT32}, @dfn{f2fs},
address@hidden, @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},
@@ -5289,7 +5290,7 @@ 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 8eaae45..3fcd07e 100644
--- a/grub-core/Makefile.core.def
+++ b/grub-core/Makefile.core.def
@@ -1281,6 +1281,11 @@ module = {
};
module = {
+ name = f2fs;
+ common = fs/f2fs.c;
+};
+
+module = {
name = exfat;
common = fs/exfat.c;
};
diff --git a/grub-core/fs/f2fs.c b/grub-core/fs/f2fs.c
new file mode 100644
index 0000000..40360d5
--- /dev/null
+++ b/grub-core/fs/f2fs.c
@@ -0,0 +1,1321 @@
+/*
+ * f2fs.c - Flash-Friendly File System
+ *
+ * Written by Jaegeuk Kim <address@hidden>
+ *
+ * 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
+
+/* byte-size offset */
+#define F2FS_SUPER_OFFSET 1024
+
+/* 12 bits for 4096 bytes */
+#define F2FS_MAX_LOG_SECTOR_SIZE 12
+
+/* 9 bits for 512 bytes */
+#define F2FS_MIN_LOG_SECTOR_SIZE 9
+
+/* support only 4KB block */
+#define F2FS_BLKSIZE 4096
+#define F2FS_BLK_BITS 12
+#define F2FS_BLK_SEC_BITS (3)
+
+#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 (13)
+#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 (9)
+#define NAT_ENTRY_PER_BLOCK (F2FS_BLKSIZE / NAT_ENTRY_SIZE)
+
+#define ver_after (a, b) (typecheck (unsigned long long, a) && \
+ typecheck (unsigned long long, b) && \
+ ((long long)((a) - (b)) > 0))
+
+#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
+
+enum
+ {
+ FI_INLINE_XATTR = 9,
+ FI_INLINE_DATA = 10,
+ FI_INLINE_DENTRY = 11,
+ FI_DATA_EXIST = 18,
+ };
+
+enum FILE_TYPE
+ {
+ F2FS_FT_UNKNOWN,
+ F2FS_FT_REG_FILE = 1,
+ F2FS_FT_DIR = 2,
+ F2FS_FT_SYMLINK = 7,
+ };
+
+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[512];
+ 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;
+ };
+ 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_uint32_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
+__test_bit (int nr, grub_uint32_t *addr)
+{
+ return 1UL & (addr[nr / 32] >> (nr & (31)));
+}
+
+static inline char *
+__inline_addr (struct grub_f2fs_inode *inode)
+{
+ return (char *)&(inode->i_addr[1]);
+}
+
+static inline grub_uint64_t
+__i_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_uint64_t ckpt_version = grub_le_to_cpu64 (ckpt->checkpoint_ver);
+ grub_uint32_t start_addr = data->cp_blkaddr;
+
+ if (!(ckpt_version & 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 int
+__ckpt_flag_set (struct grub_f2fs_checkpoint *ckpt, unsigned int f)
+{
+ grub_uint32_t ckpt_flags = grub_le_to_cpu32 (ckpt->ckpt_flags);
+ return ckpt_flags & f;
+}
+
+static inline int
+__inode_flag_set (struct grub_f2fs_inode *inode, int flag)
+{
+ grub_uint32_t i_flags = grub_le_to_cpu32 (inode->i_flags);
+ return __test_bit (flag, &i_flags);
+}
+
+static inline grub_uint32_t
+__nat_bitmap_size (struct grub_f2fs_data *data)
+{
+ struct grub_f2fs_checkpoint *ckpt = &data->ckpt;
+
+ return grub_le_to_cpu32 (ckpt->nat_ver_bitmap_bytesize);
+}
+
+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 i)
+{
+ if (i)
+ 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, blkaddr << F2FS_BLK_SEC_BITS,
+ 0, F2FS_BLKSIZE, buf);
+}
+
+/*
+ * CRC32
+ */
+#define CRCPOLY_LE 0xedb88320
+
+static inline grub_uint32_t
+grub_f2fs_cal_crc32 (grub_uint32_t crc, void *buf, int len)
+{
+ int i;
+ unsigned char *p = (unsigned char *)buf;
+
+ while (len--)
+ {
+ 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, int len)
+{
+ grub_uint32_t cal_crc = 0;
+
+ cal_crc = grub_f2fs_cal_crc32 (F2FS_SUPER_MAGIC, 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;
+ char *addr = (char *)p;
+
+ addr += (nr >> 3);
+ mask = 1 << (7 - (nr & 0x07));
+ return (mask & *addr) != 0;
+}
+
+static int
+grub_f2fs_sanity_check_sb (struct grub_f2fs_superblock *sb)
+{
+ unsigned int blocksize;
+
+ if (F2FS_SUPER_MAGIC != grub_le_to_cpu32 (sb->magic))
+ return -1;
+
+ blocksize = 1 << grub_le_to_cpu32 (sb->log_blocksize);
+ if (blocksize != F2FS_BLKSIZE)
+ return -1;
+
+ if (grub_le_to_cpu32 (sb->log_sectorsize) > F2FS_MAX_LOG_SECTOR_SIZE)
+ return -1;
+
+ if (grub_le_to_cpu32 (sb->log_sectorsize) < F2FS_MIN_LOG_SECTOR_SIZE)
+ return -1;
+
+ if (grub_le_to_cpu32 (sb->log_sectors_per_block) +
+ grub_le_to_cpu32 (sb->log_sectorsize) != F2FS_MAX_LOG_SECTOR_SIZE)
+ return -1;
+
+ return 0;
+}
+
+static grub_err_t
+grub_f2fs_read_sb (struct grub_f2fs_data *data, int block)
+{
+ grub_disk_t disk = data->disk;
+ grub_uint64_t offset;
+ grub_err_t err;
+
+ if (block == 0)
+ offset = F2FS_SUPER_OFFSET;
+ else
+ offset = F2FS_BLKSIZE + F2FS_SUPER_OFFSET;
+
+ /* Read first super block. */
+ err = grub_disk_read (disk, offset >> GRUB_DISK_SECTOR_BITS, 0,
+ sizeof (data->sblock), &data->sblock);
+ if (err)
+ return err;
+
+ if (grub_f2fs_sanity_check_sb (&data->sblock))
+ err = GRUB_ERR_BAD_FS;
+
+ return err;
+}
+
+static void *
+validate_checkpoint (struct grub_f2fs_data *data, grub_uint32_t cp_addr,
+ grub_uint64_t *version)
+{
+ void *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 >= F2FS_BLKSIZE)
+ goto invalid_cp1;
+
+ crc = *(grub_uint32_t *)((char *)cp_block + crc_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 >= F2FS_BLKSIZE)
+ goto invalid_cp2;
+
+ crc = *(grub_uint32_t *)((char *)cp_block + crc_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\n");
+
+ grub_memcpy (&data->ckpt, cur_page, F2FS_BLKSIZE);
+
+ grub_free (cp1);
+ grub_free (cp2);
+ return 0;
+}
+
+static int
+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_flag_set (inode, FI_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
+load_nat_info (struct grub_f2fs_data *data)
+{
+ void *version_bitmap;
+ grub_err_t err;
+
+ data->nat_bitmap = grub_malloc (__nat_bitmap_size (data));
+ if (!data->nat_bitmap)
+ return grub_errno;
+
+ version_bitmap = __nat_bitmap_ptr (data);
+
+ /* copy version bitmap */
+ grub_memcpy (data->nat_bitmap, version_bitmap, __nat_bitmap_size (data));
+
+ err = get_nat_journal (data);
+ if (err)
+ grub_free (data->nat_bitmap);
+
+ return err;
+}
+
+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_zalloc (sizeof (*data));
+ if (!data)
+ return NULL;
+
+ data->disk = disk;
+
+ err = grub_f2fs_read_sb (data, 0);
+ if (err)
+ {
+ err = grub_f2fs_read_sb (data, 1);
+ if (err)
+ {
+ grub_error (GRUB_ERR_BAD_FS, "not a F2FS filesystem");
+ 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;
+
+ err = load_nat_info (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:
+ if (data)
+ grub_free (data->nat_bitmap);
+ grub_free (data);
+ return NULL;
+}
+
+/* guarantee inline_data was handled by caller */
+static grub_disk_addr_t
+grub_f2fs_read_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 = __i_size (inode);
+ char *inline_addr = __inline_addr (inode);
+
+ if (__inode_flag_set (&node->inode.i, FI_INLINE_DATA))
+ {
+ if (pos > filesize || filesize > MAX_INLINE_DATA)
+ {
+ grub_error (GRUB_ERR_OUT_OF_RANGE,
+ N_("attempt to read past the end of file"));
+ return -1;
+ }
+ if (pos + len > filesize)
+ len = filesize - pos;
+
+ grub_memcpy (buf + pos, 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_read_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;
+
+ if (!diro->inode_read)
+ {
+ grub_f2fs_read_node (diro->data, diro->ino, &diro->inode);
+ if (grub_errno)
+ return 0;
+ }
+
+ symlink = grub_malloc (__i_size (&diro->inode.i) + 1);
+ if (!symlink)
+ return 0;
+
+ grub_f2fs_read_file (diro, 0, 0, 0, __i_size (&diro->inode.i), symlink);
+ if (grub_errno)
+ {
+ grub_free (symlink);
+ return 0;
+ }
+
+ symlink[__i_size (&diro->inode.i)] = '\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[F2FS_NAME_LEN + 1];
+ enum grub_fshelp_filetype type = GRUB_FSHELP_UNKNOWN;
+ enum FILE_TYPE ftype;
+ int name_len;
+
+ if (__test_bit (i, ctx->bitmap) == 0)
+ {
+ i++;
+ continue;
+ }
+
+ ftype = ctx->dentry[i].file_type;
+ name_len = grub_le_to_cpu16 (ctx->dentry[i].name_len);
+ grub_memcpy (filename, ctx->filename[i], name_len);
+ filename[name_len] = '\0';
+
+ fdiro = grub_malloc (sizeof (struct grub_fshelp_node));
+ if (!fdiro)
+ 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;
+
+ if (ctx->hook (filename, type, fdiro, ctx->hook_data))
+ 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 = (grub_uint32_t *) 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_flag_set (inode, FI_INLINE_DENTRY))
+ return grub_f2fs_iterate_inline_dir (inode, &ctx);
+
+ while (fpos < __i_size (inode))
+ {
+ struct grub_f2fs_dentry_block *de_blk;
+ char *buf;
+
+ 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 = (grub_uint32_t *) de_blk->dentry_bitmap;
+ ctx.dentry = de_blk->dentry;
+ ctx.filename = de_blk->filename;
+ ctx.max = NR_DENTRY_IN_BLOCK;
+
+ if (grub_f2fs_check_dentries (&ctx))
+ return 1;
+
+ grub_free (buf);
+
+ 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);
+ if (ctx.data)
+ grub_free (ctx.data->nat_bitmap);
+ 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;
+
+ 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, F2FS_BLKSIZE);
+ grub_free (fdiro);
+
+ file->size = __i_size (&(data->inode->i));
+ file->data = data;
+ file->offset = 0;
+
+ return 0;
+
+fail:
+ if (fdiro != &data->diropen)
+ grub_free (fdiro);
+ if (data)
+ grub_free (data->nat_bitmap);
+ 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;
+
+ if (data)
+ grub_free (data->nat_bitmap);
+ grub_free (data);
+
+ grub_dl_unref (my_mod);
+
+ return GRUB_ERR_NONE;
+}
+
+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 = grub_zalloc (sizeof (data->sblock.volume_name));
+ grub_utf16_to_utf8 ((grub_uint8_t *) (*label),
+ data->sblock.volume_name, 512);
+ }
+ else
+ *label = NULL;
+
+ if (data)
+ grub_free (data->nat_bitmap);
+ 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;
+
+ if (data)
+ grub_free (data->nat_bitmap);
+ 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 ab52e99..a517fdf 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..98efda6
--- /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 e9e85c2..acc35cc 100644
--- a/tests/util/grub-fs-tester.in
+++ b/tests/util/grub-fs-tester.in
@@ -36,7 +36,7 @@ case x"$fs" in
MINLOGSECSIZE=8
# OS LIMITATION: It could go up to 32768 but Linux rejects sector
sizes > 4096
MAXLOGSECSIZE=12;;
- xxfs)
+ xxfs|xf2fs)
MINLOGSECSIZE=9
# OS LIMITATION: GNU/Linux doesn't accept > 4096
MAXLOGSECSIZE=12;;
@@ -135,6 +135,10 @@ for
((LOGSECSIZE=MINLOGSECSIZE;LOGSECSIZE<=MAXLOGSECSIZE;LOGSECSIZE=LOGSECSIZE +
fi
MAXBLKSIZE=4096
;;
+ xf2fs)
+ MINBLKSIZE=$SECSIZE
+ # OS Limitation: GNU/Linux doesn't accept > 4096
+ MAXBLKSIZE=4096;;
xsquash*)
MINBLKSIZE=4096
MAXBLKSIZE=1048576;;
@@ -256,7 +260,9 @@ for
((LOGSECSIZE=MINLOGSECSIZE;LOGSECSIZE<=MAXLOGSECSIZE;LOGSECSIZE=LOGSECSIZE +
# FS LIMITATION: btrfs label is at most 255 UTF-8 chars
x"btrfs"*)
FSLABEL="grub_;/testé莭莽😁киритi
urewfceniuewruevrewnuuireurevueurnievrewfnerfcnevirivinrewvnirewnivrewiuvcrewvnuewvrrrewniuerwreiuviurewiuviurewnuvewnvrenurnunuvrevuurerejiremvreijnvcreivire
nverivnreivrevnureiorfnfrvoeoiroireoireoifrefoieroifoireoif";;
-
+ # FS LIMITATION: btrfs label is at most 512 UTF-16 chars
+ x"f2fs")
+ FSLABEL="grub_;/testjaegeuk kim
f2fsaskdfjkasdlfajskdfjaksdjfkjaskjkjkzjkjckzjvkcjkjkjekqjkwejkqwrlkasdfjksadjflaskdhzxhvjzxchvjzkxchvjkhakjsdhfjkhqjkwehrjkhasjkdfhjkashdfjkhjzkxhcjkvzhxcjkvhzxjchvkzhxckjvhjzkxchvjkhzjkxchvjkzhxckjvhzkxjchvkjzxhckjvzxcjkvhjzxkchkvjhzxkjcvhjkhjkahsjkdhkjqhwekrjhakjsdfhkjashdkjzhxcvjkhzxcvzxcvggggggggggf";;
# FS LIMITATION: exfat is at most 15 UTF-16 chars
x"exfat")
FSLABEL="géт ;/莭莽😁кир";;
@@ -466,7 +472,7 @@ 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"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;;
@@ -745,6 +751,8 @@ 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)
--
2.1.1
- [PATCH] F2FS support,
Jaegeuk Kim <=