From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- fs/befs/befs.h | 150 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 150 insertions(+) create mode 100644 fs/befs/befs.h (limited to 'fs/befs/befs.h') diff --git a/fs/befs/befs.h b/fs/befs/befs.h new file mode 100644 index 000000000..7cd472456 --- /dev/null +++ b/fs/befs/befs.h @@ -0,0 +1,150 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * befs.h + * + * Copyright (C) 2001-2002 Will Dyson + * Copyright (C) 1999 Makoto Kato (m_kato@ga2.so-net.ne.jp) + */ + +#ifndef _LINUX_BEFS_H +#define _LINUX_BEFS_H + +#include "befs_fs_types.h" + +/* used in debug.c */ +#define BEFS_VERSION "0.9.3" + + +typedef u64 befs_blocknr_t; +/* + * BeFS in memory structures + */ + +struct befs_mount_options { + kgid_t gid; + kuid_t uid; + int use_gid; + int use_uid; + int debug; + char *iocharset; +}; + +struct befs_sb_info { + u32 magic1; + u32 block_size; + u32 block_shift; + int byte_order; + befs_off_t num_blocks; + befs_off_t used_blocks; + u32 inode_size; + u32 magic2; + + /* Allocation group information */ + u32 blocks_per_ag; + u32 ag_shift; + u32 num_ags; + + /* State of the superblock */ + u32 flags; + + /* Journal log entry */ + befs_block_run log_blocks; + befs_off_t log_start; + befs_off_t log_end; + + befs_inode_addr root_dir; + befs_inode_addr indices; + u32 magic3; + + struct befs_mount_options mount_opts; + struct nls_table *nls; +}; + +struct befs_inode_info { + u32 i_flags; + u32 i_type; + + befs_inode_addr i_inode_num; + befs_inode_addr i_parent; + befs_inode_addr i_attribute; + + union { + befs_data_stream ds; + char symlink[BEFS_SYMLINK_LEN]; + } i_data; + + struct inode vfs_inode; +}; + +enum befs_err { + BEFS_OK, + BEFS_ERR, + BEFS_BAD_INODE, + BEFS_BT_END, + BEFS_BT_EMPTY, + BEFS_BT_MATCH, + BEFS_BT_OVERFLOW, + BEFS_BT_NOT_FOUND +}; + + +/****************************/ +/* debug.c */ +__printf(2, 3) +void befs_error(const struct super_block *sb, const char *fmt, ...); +__printf(2, 3) +void befs_warning(const struct super_block *sb, const char *fmt, ...); +__printf(2, 3) +void befs_debug(const struct super_block *sb, const char *fmt, ...); + +void befs_dump_super_block(const struct super_block *sb, befs_super_block *); +void befs_dump_inode(const struct super_block *sb, befs_inode *); +void befs_dump_index_entry(const struct super_block *sb, befs_disk_btree_super *); +void befs_dump_index_node(const struct super_block *sb, befs_btree_nodehead *); +/****************************/ + + +/* Gets a pointer to the private portion of the super_block + * structure from the public part + */ +static inline struct befs_sb_info * +BEFS_SB(const struct super_block *super) +{ + return (struct befs_sb_info *) super->s_fs_info; +} + +static inline struct befs_inode_info * +BEFS_I(const struct inode *inode) +{ + return container_of(inode, struct befs_inode_info, vfs_inode); +} + +static inline befs_blocknr_t +iaddr2blockno(struct super_block *sb, const befs_inode_addr *iaddr) +{ + return ((iaddr->allocation_group << BEFS_SB(sb)->ag_shift) + + iaddr->start); +} + +static inline befs_inode_addr +blockno2iaddr(struct super_block *sb, befs_blocknr_t blockno) +{ + befs_inode_addr iaddr; + + iaddr.allocation_group = blockno >> BEFS_SB(sb)->ag_shift; + iaddr.start = + blockno - (iaddr.allocation_group << BEFS_SB(sb)->ag_shift); + iaddr.len = 1; + + return iaddr; +} + +static inline unsigned int +befs_iaddrs_per_block(struct super_block *sb) +{ + return BEFS_SB(sb)->block_size / sizeof(befs_disk_inode_addr); +} + +#include "endian.h" + +#endif /* _LINUX_BEFS_H */ -- cgit v1.2.3