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Rev | Author | Line No. | Line |
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422 | giacomo | 1 | #ifndef __LINUX_ROMFS_FS_H |
2 | #define __LINUX_ROMFS_FS_H |
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3 | |||
4 | /* The basic structures of the romfs filesystem */ |
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5 | |||
6 | #define ROMBSIZE BLOCK_SIZE |
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7 | #define ROMBSBITS BLOCK_SIZE_BITS |
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8 | #define ROMBMASK (ROMBSIZE-1) |
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9 | #define ROMFS_MAGIC 0x7275 |
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10 | |||
11 | #define ROMFS_MAXFN 128 |
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12 | |||
13 | #define __mkw(h,l) (((h)&0x00ff)<< 8|((l)&0x00ff)) |
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14 | #define __mkl(h,l) (((h)&0xffff)<<16|((l)&0xffff)) |
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15 | #define __mk4(a,b,c,d) htonl(__mkl(__mkw(a,b),__mkw(c,d))) |
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16 | #define ROMSB_WORD0 __mk4('-','r','o','m') |
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17 | #define ROMSB_WORD1 __mk4('1','f','s','-') |
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18 | |||
19 | /* On-disk "super block" */ |
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20 | |||
21 | struct romfs_super_block { |
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22 | __u32 word0; |
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23 | __u32 word1; |
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24 | __u32 size; |
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25 | __u32 checksum; |
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26 | char name[0]; /* volume name */ |
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27 | }; |
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28 | |||
29 | /* On disk inode */ |
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30 | |||
31 | struct romfs_inode { |
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32 | __u32 next; /* low 4 bits see ROMFH_ */ |
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33 | __u32 spec; |
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34 | __u32 size; |
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35 | __u32 checksum; |
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36 | char name[0]; |
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37 | }; |
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38 | |||
39 | #define ROMFH_TYPE 7 |
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40 | #define ROMFH_HRD 0 |
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41 | #define ROMFH_DIR 1 |
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42 | #define ROMFH_REG 2 |
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43 | #define ROMFH_SYM 3 |
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44 | #define ROMFH_BLK 4 |
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45 | #define ROMFH_CHR 5 |
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46 | #define ROMFH_SCK 6 |
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47 | #define ROMFH_FIF 7 |
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48 | #define ROMFH_EXEC 8 |
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49 | |||
50 | /* Alignment */ |
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51 | |||
52 | #define ROMFH_SIZE 16 |
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53 | #define ROMFH_PAD (ROMFH_SIZE-1) |
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54 | #define ROMFH_MASK (~ROMFH_PAD) |
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55 | |||
56 | #ifdef __KERNEL__ |
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57 | |||
58 | /* Not much now */ |
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59 | |||
60 | #endif /* __KERNEL__ */ |
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61 | #endif |