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oasis-root

Compiled tree of Oasis Linux based on own branch at <https://hacktivis.me/git/oasis/> git clone https://anongit.hacktivis.me/git/oasis-root.git

romfs_fs.h (1236B)

    

  1. /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
  2. #ifndef __LINUX_ROMFS_FS_H
  3. #define __LINUX_ROMFS_FS_H
  5. #include <linux/types.h>
  6. #include <linux/fs.h>
  8. /* The basic structures of the romfs filesystem */
  10. #define ROMBSIZE BLOCK_SIZE
  11. #define ROMBSBITS BLOCK_SIZE_BITS
  12. #define ROMBMASK (ROMBSIZE-1)
  13. #define ROMFS_MAGIC 0x7275
  15. #define ROMFS_MAXFN 128
  17. #define __mkw(h,l) (((h)&0x00ff)<< 8|((l)&0x00ff))
  18. #define __mkl(h,l) (((h)&0xffff)<<16|((l)&0xffff))
  19. #define __mk4(a,b,c,d) cpu_to_be32(__mkl(__mkw(a,b),__mkw(c,d)))
  20. #define ROMSB_WORD0 __mk4('-','r','o','m')
  21. #define ROMSB_WORD1 __mk4('1','f','s','-')
  23. /* On-disk "super block" */
  25. struct romfs_super_block {
  26. 	__be32 word0;
  27. 	__be32 word1;
  28. 	__be32 size;
  29. 	__be32 checksum;
  30. 	char name[];		/* volume name */
  31. };
  33. /* On disk inode */
  35. struct romfs_inode {
  36. 	__be32 next;		/* low 4 bits see ROMFH_ */
  37. 	__be32 spec;
  38. 	__be32 size;
  39. 	__be32 checksum;
  40. 	char name[];
  41. };
  43. #define ROMFH_TYPE 7
  44. #define ROMFH_HRD 0
  45. #define ROMFH_DIR 1
  46. #define ROMFH_REG 2
  47. #define ROMFH_SYM 3
  48. #define ROMFH_BLK 4
  49. #define ROMFH_CHR 5
  50. #define ROMFH_SCK 6
  51. #define ROMFH_FIF 7
  52. #define ROMFH_EXEC 8
  54. /* Alignment */
  56. #define ROMFH_SIZE 16
  57. #define ROMFH_PAD (ROMFH_SIZE-1)
  58. #define ROMFH_MASK (~ROMFH_PAD)
  60. #endif