| Elliott Hughes | 180edef | 2023-11-02 00:08:05 +0000 | [diff] [blame] | 1 | /* |
| 2 | * This file is auto-generated. Modifications will be lost. |
| 3 | * |
| 4 | * See https://android.googlesource.com/platform/bionic/+/master/libc/kernel/ |
| 5 | * for more information. |
| 6 | */ |
| Ben Cheng | 655a7c0 | 2013-10-16 16:09:24 -0700 | [diff] [blame] | 7 | #ifndef _UAPI__CRAMFS_H |
| 8 | #define _UAPI__CRAMFS_H |
| 9 | #include <linux/types.h> |
| 10 | #include <linux/magic.h> |
| Ben Cheng | 655a7c0 | 2013-10-16 16:09:24 -0700 | [diff] [blame] | 11 | #define CRAMFS_SIGNATURE "Compressed ROMFS" |
| 12 | #define CRAMFS_MODE_WIDTH 16 |
| 13 | #define CRAMFS_UID_WIDTH 16 |
| 14 | #define CRAMFS_SIZE_WIDTH 24 |
| Ben Cheng | 655a7c0 | 2013-10-16 16:09:24 -0700 | [diff] [blame] | 15 | #define CRAMFS_GID_WIDTH 8 |
| 16 | #define CRAMFS_NAMELEN_WIDTH 6 |
| 17 | #define CRAMFS_OFFSET_WIDTH 26 |
| 18 | #define CRAMFS_MAXPATHLEN (((1 << CRAMFS_NAMELEN_WIDTH) - 1) << 2) |
| Ben Cheng | 655a7c0 | 2013-10-16 16:09:24 -0700 | [diff] [blame] | 19 | struct cramfs_inode { |
| Tao Bao | d7db594 | 2015-01-28 10:07:51 -0800 | [diff] [blame] | 20 | __u32 mode : CRAMFS_MODE_WIDTH, uid : CRAMFS_UID_WIDTH; |
| 21 | __u32 size : CRAMFS_SIZE_WIDTH, gid : CRAMFS_GID_WIDTH; |
| 22 | __u32 namelen : CRAMFS_NAMELEN_WIDTH, offset : CRAMFS_OFFSET_WIDTH; |
| Ben Cheng | 655a7c0 | 2013-10-16 16:09:24 -0700 | [diff] [blame] | 23 | }; |
| 24 | struct cramfs_info { |
| Tao Bao | d7db594 | 2015-01-28 10:07:51 -0800 | [diff] [blame] | 25 | __u32 crc; |
| 26 | __u32 edition; |
| Tao Bao | d7db594 | 2015-01-28 10:07:51 -0800 | [diff] [blame] | 27 | __u32 blocks; |
| 28 | __u32 files; |
| Ben Cheng | 655a7c0 | 2013-10-16 16:09:24 -0700 | [diff] [blame] | 29 | }; |
| 30 | struct cramfs_super { |
| Tao Bao | d7db594 | 2015-01-28 10:07:51 -0800 | [diff] [blame] | 31 | __u32 magic; |
| 32 | __u32 size; |
| 33 | __u32 flags; |
| 34 | __u32 future; |
| Tao Bao | d7db594 | 2015-01-28 10:07:51 -0800 | [diff] [blame] | 35 | __u8 signature[16]; |
| 36 | struct cramfs_info fsid; |
| 37 | __u8 name[16]; |
| 38 | struct cramfs_inode root; |
| Ben Cheng | 655a7c0 | 2013-10-16 16:09:24 -0700 | [diff] [blame] | 39 | }; |
| 40 | #define CRAMFS_FLAG_FSID_VERSION_2 0x00000001 |
| 41 | #define CRAMFS_FLAG_SORTED_DIRS 0x00000002 |
| 42 | #define CRAMFS_FLAG_HOLES 0x00000100 |
| Ben Cheng | 655a7c0 | 2013-10-16 16:09:24 -0700 | [diff] [blame] | 43 | #define CRAMFS_FLAG_WRONG_SIGNATURE 0x00000200 |
| 44 | #define CRAMFS_FLAG_SHIFTED_ROOT_OFFSET 0x00000400 |
| Christopher Ferris | 934ec94 | 2018-01-31 15:29:16 -0800 | [diff] [blame] | 45 | #define CRAMFS_FLAG_EXT_BLOCK_POINTERS 0x00000800 |
| 46 | #define CRAMFS_SUPPORTED_FLAGS (0x000000ff | CRAMFS_FLAG_HOLES | CRAMFS_FLAG_WRONG_SIGNATURE | CRAMFS_FLAG_SHIFTED_ROOT_OFFSET | CRAMFS_FLAG_EXT_BLOCK_POINTERS) |
| 47 | #define CRAMFS_BLK_FLAG_UNCOMPRESSED (1 << 31) |
| 48 | #define CRAMFS_BLK_FLAG_DIRECT_PTR (1 << 30) |
| 49 | #define CRAMFS_BLK_FLAGS (CRAMFS_BLK_FLAG_UNCOMPRESSED | CRAMFS_BLK_FLAG_DIRECT_PTR) |
| 50 | #define CRAMFS_BLK_DIRECT_PTR_SHIFT 2 |
| Ben Cheng | 655a7c0 | 2013-10-16 16:09:24 -0700 | [diff] [blame] | 51 | #endif |