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60 lines
1.6 KiB
60 lines
1.6 KiB
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
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#ifndef _UAPI__LINUX_BLKPG_H |
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#define _UAPI__LINUX_BLKPG_H |
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/* |
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* Partition table and disk geometry handling |
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* |
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* A single ioctl with lots of subfunctions: |
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* |
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* Device number stuff: |
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* get_whole_disk() (given the device number of a partition, |
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* find the device number of the encompassing disk) |
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* get_all_partitions() (given the device number of a disk, return the |
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* device numbers of all its known partitions) |
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* |
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* Partition stuff: |
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* add_partition() |
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* delete_partition() |
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* test_partition_in_use() (also for test_disk_in_use) |
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* |
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* Geometry stuff: |
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* get_geometry() |
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* set_geometry() |
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* get_bios_drivedata() |
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* |
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* For today, only the partition stuff - aeb, 990515 |
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*/ |
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#include <linux/compiler.h> |
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#include <linux/ioctl.h> |
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#define BLKPG _IO(0x12,105) |
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/* The argument structure */ |
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struct blkpg_ioctl_arg { |
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int op; |
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int flags; |
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int datalen; |
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void __user *data; |
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}; |
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/* The subfunctions (for the op field) */ |
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#define BLKPG_ADD_PARTITION 1 |
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#define BLKPG_DEL_PARTITION 2 |
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#define BLKPG_RESIZE_PARTITION 3 |
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/* Sizes of name fields. Unused at present. */ |
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#define BLKPG_DEVNAMELTH 64 |
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#define BLKPG_VOLNAMELTH 64 |
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/* The data structure for ADD_PARTITION and DEL_PARTITION */ |
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struct blkpg_partition { |
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long long start; /* starting offset in bytes */ |
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long long length; /* length in bytes */ |
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int pno; /* partition number */ |
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char devname[BLKPG_DEVNAMELTH]; /* partition name, like sda5 or c0d1p2, |
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to be used in kernel messages */ |
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char volname[BLKPG_VOLNAMELTH]; /* volume label */ |
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}; |
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#endif /* _UAPI__LINUX_BLKPG_H */
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