1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
62 lines
1.2 KiB
C
62 lines
1.2 KiB
C
#ifndef __LINUX_ROMFS_FS_H
|
|
#define __LINUX_ROMFS_FS_H
|
|
|
|
/* The basic structures of the romfs filesystem */
|
|
|
|
#define ROMBSIZE BLOCK_SIZE
|
|
#define ROMBSBITS BLOCK_SIZE_BITS
|
|
#define ROMBMASK (ROMBSIZE-1)
|
|
#define ROMFS_MAGIC 0x7275
|
|
|
|
#define ROMFS_MAXFN 128
|
|
|
|
#define __mkw(h,l) (((h)&0x00ff)<< 8|((l)&0x00ff))
|
|
#define __mkl(h,l) (((h)&0xffff)<<16|((l)&0xffff))
|
|
#define __mk4(a,b,c,d) cpu_to_be32(__mkl(__mkw(a,b),__mkw(c,d)))
|
|
#define ROMSB_WORD0 __mk4('-','r','o','m')
|
|
#define ROMSB_WORD1 __mk4('1','f','s','-')
|
|
|
|
/* On-disk "super block" */
|
|
|
|
struct romfs_super_block {
|
|
__be32 word0;
|
|
__be32 word1;
|
|
__be32 size;
|
|
__be32 checksum;
|
|
char name[0]; /* volume name */
|
|
};
|
|
|
|
/* On disk inode */
|
|
|
|
struct romfs_inode {
|
|
__be32 next; /* low 4 bits see ROMFH_ */
|
|
__be32 spec;
|
|
__be32 size;
|
|
__be32 checksum;
|
|
char name[0];
|
|
};
|
|
|
|
#define ROMFH_TYPE 7
|
|
#define ROMFH_HRD 0
|
|
#define ROMFH_DIR 1
|
|
#define ROMFH_REG 2
|
|
#define ROMFH_SYM 3
|
|
#define ROMFH_BLK 4
|
|
#define ROMFH_CHR 5
|
|
#define ROMFH_SCK 6
|
|
#define ROMFH_FIF 7
|
|
#define ROMFH_EXEC 8
|
|
|
|
/* Alignment */
|
|
|
|
#define ROMFH_SIZE 16
|
|
#define ROMFH_PAD (ROMFH_SIZE-1)
|
|
#define ROMFH_MASK (~ROMFH_PAD)
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
/* Not much now */
|
|
|
|
#endif /* __KERNEL__ */
|
|
#endif
|