sys/linux/dev_block.txt

# Copyright 2018 syzkaller project authors. All rights reserved.
# Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.

include <uapi/linux/fs.h>
include <uapi/linux/blktrace_api.h>
include <uapi/linux/blkzoned.h>
include <uapi/linux/pr.h>
include <uapi/linux/hdreg.h>
include <uapi/linux/blkpg.h>

resource fd_block_trace[fd]
resource fd_block[fd_block_trace]

openat$nullb(fd const[AT_FDCWD], file ptr[in, string["/dev/nullb0"]], flags flags[open_flags], mode const[0]) fd_block
openat$md(fd const[AT_FDCWD], file ptr[in, string["/dev/md0"]], flags flags[open_flags], mode const[0]) fd_block

ioctl$BLKTRACESETUP(fd fd_block_trace, cmd const[BLKTRACESETUP], arg ptr[in, blk_user_trace_setup])
ioctl$BLKTRACESTART(fd fd_block_trace, cmd const[BLKTRACESTART], arg const[0])
ioctl$BLKTRACESTOP(fd fd_block_trace, cmd const[BLKTRACESTOP], arg const[0])
ioctl$BLKTRACETEARDOWN(fd fd_block_trace, cmd const[BLKTRACETEARDOWN], arg const[0])

ioctl$BLKFLSBUF(fd fd_block, cmd const[BLKFLSBUF], arg ptr[in, intptr])
ioctl$BLKROSET(fd fd_block, cmd const[BLKROSET], arg ptr[in, intptr])
ioctl$BLKDISCARD(fd fd_block, cmd const[BLKDISCARD], arg ptr[in, intptr])
ioctl$BLKSECDISCARD(fd fd_block, cmd const[BLKSECDISCARD], arg ptr[in, intptr])
ioctl$BLKZEROOUT(fd fd_block, cmd const[BLKZEROOUT], arg ptr[in, blk_zone_range])
ioctl$BLKREPORTZONE(fd fd_block, cmd const[BLKREPORTZONE], arg ptr[in, blk_zone_report])
ioctl$BLKRESETZONE(fd fd_block, cmd const[BLKRESETZONE], arg ptr[in, blk_zone_range])
ioctl$BLKRAGET(fd fd_block, cmd const[BLKRAGET], arg ptr[out, intptr])
ioctl$BLKROGET(fd fd_block, cmd const[BLKROGET], arg ptr[out, intptr])
ioctl$BLKBSZGET(fd fd_block, cmd const[BLKBSZGET], arg ptr[out, intptr])
ioctl$BLKPBSZGET(fd fd_block, cmd const[BLKPBSZGET], arg ptr[out, intptr])
ioctl$BLKIOMIN(fd fd_block, cmd const[BLKIOMIN], arg ptr[out, intptr])
ioctl$BLKIOOPT(fd fd_block, cmd const[BLKIOOPT], arg ptr[out, intptr])
ioctl$BLKALIGNOFF(fd fd_block, cmd const[BLKALIGNOFF], arg ptr[out, intptr])
ioctl$BLKSECTGET(fd fd_block, cmd const[BLKSECTGET], arg ptr[out, intptr])
ioctl$BLKROTATIONAL(fd fd_block, cmd const[BLKROTATIONAL], arg ptr[out, intptr])
ioctl$BLKFRASET(fd fd_block, cmd const[BLKFRASET], arg ptr[in, intptr])
ioctl$BLKBSZSET(fd fd_block, cmd const[BLKBSZSET], arg ptr[in, intptr])
ioctl$BLKPG(fd fd_block, cmd const[BLKPG], arg ptr[in, blkpg_ioctl_arg])
ioctl$BLKRRPART(fd fd_block, cmd const[BLKRRPART], arg const[0])
ioctl$BLKGETSIZE(fd fd_block, cmd const[BLKGETSIZE], arg ptr[out, intptr])
ioctl$BLKGETSIZE64(fd fd_block, cmd const[BLKGETSIZE64], arg ptr[out, int64])

ioctl$HDIO_GETGEO(fd fd_block, cmd const[HDIO_GETGEO], arg ptr[out, hd_geometry])

ioctl$IOC_PR_REGISTER(fd fd_block, cmd const[IOC_PR_REGISTER], arg ptr[in, pr_registration])
ioctl$IOC_PR_RESERVE(fd fd_block, cmd const[IOC_PR_RESERVE], arg ptr[in, pr_reservation])
ioctl$IOC_PR_RELEASE(fd fd_block, cmd const[IOC_PR_RELEASE], arg ptr[in, pr_reservation])
ioctl$IOC_PR_PREEMPT(fd fd_block, cmd const[IOC_PR_PREEMPT], arg ptr[in, pr_preempt])
ioctl$IOC_PR_PREEMPT_ABORT(fd fd_block, cmd const[IOC_PR_PREEMPT_ABORT], arg ptr[in, pr_preempt])
ioctl$IOC_PR_CLEAR(fd fd_block, cmd const[IOC_PR_CLEAR], arg ptr[in, pr_clear])

blk_zone_report {
	sector		int64
	nr_zones	len[zones, int32]
	reserved	const[0, int32]
	zones		array[blk_zone]
} [packed]

blk_zone {
	start		int64
	len		int64
	wp		int64
	type		int8
	cond		int8
	non_seq		int8
	reset		int8
	reserved	array[const[0, int8], 36]
}

blk_zone_range {
	sector		int64
	nr_sectors	int64
}

hd_geometry {
	heads		int8
	sectors		int8
	cylinders	int16
	start		intptr
}

blkpg_ioctl_arg {
	op	int32
	flags	int32
	datalen	bytesize[data, int32]
	data	ptr[in, array[int8]]
}

blk_user_trace_setup {
	name		array[const[0, int8], BLKTRACE_BDEV_SIZE]
	act_mask	int16
	buf_size	int32
	buf_nr		int32
	start_lba	int64
	end_lba		int64
	pid		pid
}

pr_registration {
	old_key	int64
	new_key	int64
	flags	bool32
	pad	const[0, int32]
}

pr_reservation {
	key	int64
	type	int32
	flags	bool32
}

pr_preempt {
	old_key	int64
	new_key	int64
	type	int32
	flags	int32
}

pr_clear {
	key	int64
	flags	const[0, int32]
	pad	const[0, int32]
}