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/*
* Ported to Linux's Second Extended File System as part of the
* dump and restore backup suit
* Remy Card <card@Linux.EU.Org>, 1994-1997
* Stelian Pop <stelian@popies.net>, 1999-2000
* Stelian Pop <stelian@popies.net> - Alcôve <www.alcove.com>, 2000-2002
*/
#include <config.h>
#include <sys/time.h>
#include <dirent.h>
#include <stdio.h>
#ifdef HAVE_STDINT_H
#include <stdint.h>
#endif
#ifdef HAVE_INTTYPES_H
#include <inttypes.h>
#endif
#ifdef HAVE_EXT2FS_EXT2_FS_H
#include <ext2fs/ext2_fs.h>
#else
#include <linux/ext2_fs.h>
#endif
#include <ext2fs/ext2fs.h>
#ifndef _BSDCOMPAT_H
#define _BSDCOMPAT_H 1
#define UNUSED(x) x __attribute__ ((unused))
#ifndef NBBY
#define NBBY 8
#endif
#ifndef MIN
#define MIN(a,b) ((a < b) ? a : b)
#endif
#define WINO 1
#define DEV_BSIZE 512
#define DEV_BSHIFT 9
#define MAXBSIZE EXT2_MAX_BLOCK_SIZE
#define ROOTINO EXT2_ROOT_INO
#ifdef EXT2_NODUMP_FL
#define UF_NODUMP EXT2_NODUMP_FL
#endif
#ifndef howmany
#define howmany(x,y) (((x)+((y)-1))/(y))
#endif
#ifndef roundup
#define roundup(x, y) ((((x)+((y)-1))/(y))*(y))
#endif
#ifndef powerof2
#define powerof2(x) ((((x)-1)&(x))==0)
#endif
#define fsbtodb(sb,b) ((ext2_loff_t)(((long long)(b) * EXT2_BLOCK_SIZE((sb)->super)) / DEV_BSIZE))
#define dbtofsb(sb,b) ((int)(((long long)(b) * DEV_BSIZE) / EXT2_BLOCK_SIZE((sb)->super)))
#define sblock fs
#define fs_fsize fragsize
#define fs_bsize blocksize
#define fs_size super->s_blocks_count
#define IFMT S_IFMT
#define IFLNK S_IFLNK
#define IFREG S_IFREG
#define IFDIR S_IFDIR
#define IFCHR S_IFCHR
#define IFBLK S_IFBLK
#define IFSOCK S_IFSOCK
#define IFIFO S_IFIFO
/*
* The BSD dump format reserves 4 bytes for a time_t, but other architectures
* (notably axp) have larger time_t. ctime4() is a modified ctime() which
* always accepts short 4-byte times.
*/
#define ctime4(timep) ({ time_t t = *(timep); ctime(&t); })
/*
* This is the ext2_inode structure but the fields have been renamed
* to match 4.4BSD's names
*/
#define NDADDR 12
#define NIADDR 3
#define NINDIR(fs) EXT2_ADDR_PER_BLOCK(fs->super)
// This structure is written to tape as part of u_spcl.s_spcl
struct dinode_tape {
__u16 di_mode;
__u16 di_uid;
__u32 di_size;
__u32 di_atime;
__u32 di_ctime;
__u32 di_mtime;
__u32 di_dtime;
__u16 di_gid;
__u16 di_nlink;
__u32 di_blocks;
__u32 di_flags;
__u32 di_reserved1;
__u32 di_db[NDADDR];
__u32 di_ib[NIADDR];
__u32 di_gen;
__u32 di_file_acl;
__u32 di_dir_acl;
__u32 di_faddr;
__u8 di_frag;
__u8 di_fsize;
__u16 di_pad1;
__u16 di_uidhigh;
__u16 di_gidhigh;
__u32 di_spare;
#if 0
// Added in 0.4b40 when EA support was added.
__u16 di_extraisize;
__u16 di_pad2;
#endif
};
/*
* This is the ext2_dir_entry structure but the fields have been renamed
* to match 4.4BSD's names
*
* This is the 4.4BSD directory entry structure
*/
#define DIRBLKSIZ DEV_BSIZE
#ifndef MAXNAMLEN
#define MAXNAMLEN 255
#endif
/*
* For old libc.
*/
#ifndef DT_UNKNOWN
#define DT_UNKNOWN 0
#define DT_FIFO 1
#define DT_CHR 2
#define DT_DIR 4
#define DT_BLK 6
#define DT_REG 8
#define DT_LNK 10
#define DT_SOCK 12
#endif
/*
* The direct structure used by dump/restore.
*/
struct direct {
__u32 d_ino;
__u16 d_reclen;
__u8 d_type;
__u8 d_namlen;
char d_name[MAXNAMLEN + 1];
};
/*
* The DIRSIZ macro gives the minimum record length which will hold
* the directory entry. This requires the amount of space in struct direct
* without the d_name field, plus enough space for the name with a terminating
* null byte (dp->d_namlen+1), rounded up to a 4 byte boundary.
*/
#define DIRSIZ(oldfmt,dp) EXT2_DIR_REC_LEN(((dp)->d_namlen & 0xff) + 1)
struct bsdtimeval { /* XXX alpha-*-linux is deviant */
__u32 tv_sec;
__u32 tv_usec;
};
/*
* This is the new (4.4) BSD inode structure
* copied from the FreeBSD 2.0 <ufs/ufs/dinode.h> include file
*/
struct new_bsd_inode {
__u16 di_mode;
__s16 di_nlink;
union {
__u16 oldids[2];
__u32 inumber;
} di_u;
uint64_t di_size;
struct bsdtimeval di_atime;
struct bsdtimeval di_mtime;
struct bsdtimeval di_ctime;
__u32 di_db[NDADDR];
__u32 di_ib[NIADDR];
__u32 di_flags;
__s32 di_blocks;
__s32 di_gen;
__u32 di_uid;
__u32 di_gid;
__s32 di_spare[2];
};
#define di_ouid di_u.oldids[0]
#define di_ogid di_u.oldids[1]
#endif /* _BSDCOMPAT_H */
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