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6f52b16c | 1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
53bb724f BN |
2 | #ifndef _UAPI__LINUX_BLKPG_H |
3 | #define _UAPI__LINUX_BLKPG_H | |
1da177e4 LT |
4 | |
5 | /* | |
6 | * Partition table and disk geometry handling | |
7 | * | |
8 | * A single ioctl with lots of subfunctions: | |
9 | * | |
10 | * Device number stuff: | |
11 | * get_whole_disk() (given the device number of a partition, | |
12 | * find the device number of the encompassing disk) | |
13 | * get_all_partitions() (given the device number of a disk, return the | |
14 | * device numbers of all its known partitions) | |
15 | * | |
16 | * Partition stuff: | |
17 | * add_partition() | |
18 | * delete_partition() | |
19 | * test_partition_in_use() (also for test_disk_in_use) | |
20 | * | |
21 | * Geometry stuff: | |
22 | * get_geometry() | |
23 | * set_geometry() | |
24 | * get_bios_drivedata() | |
25 | * | |
26 | * For today, only the partition stuff - aeb, 990515 | |
27 | */ | |
acc429a5 | 28 | #include <linux/compiler.h> |
1da177e4 LT |
29 | #include <linux/ioctl.h> |
30 | ||
31 | #define BLKPG _IO(0x12,105) | |
32 | ||
33 | /* The argument structure */ | |
34 | struct blkpg_ioctl_arg { | |
35 | int op; | |
36 | int flags; | |
37 | int datalen; | |
38 | void __user *data; | |
39 | }; | |
40 | ||
41 | /* The subfunctions (for the op field) */ | |
42 | #define BLKPG_ADD_PARTITION 1 | |
43 | #define BLKPG_DEL_PARTITION 2 | |
c83f6bf9 | 44 | #define BLKPG_RESIZE_PARTITION 3 |
1da177e4 LT |
45 | |
46 | /* Sizes of name fields. Unused at present. */ | |
47 | #define BLKPG_DEVNAMELTH 64 | |
48 | #define BLKPG_VOLNAMELTH 64 | |
49 | ||
50 | /* The data structure for ADD_PARTITION and DEL_PARTITION */ | |
51 | struct blkpg_partition { | |
52 | long long start; /* starting offset in bytes */ | |
53 | long long length; /* length in bytes */ | |
54 | int pno; /* partition number */ | |
55 | char devname[BLKPG_DEVNAMELTH]; /* partition name, like sda5 or c0d1p2, | |
56 | to be used in kernel messages */ | |
57 | char volname[BLKPG_VOLNAMELTH]; /* volume label */ | |
58 | }; | |
59 | ||
53bb724f | 60 | #endif /* _UAPI__LINUX_BLKPG_H */ |