sys/linux/dev_snd_midi.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/asm/ioctl.h>
include <uapi/linux/fcntl.h>
include <uapi/linux/time.h>
include <uapi/sound/asound.h>

resource fd_midi[fd]

syz_open_dev$sndmidi(dev ptr[in, string["/dev/snd/midiC#D#"]], id intptr, flags flags[open_flags]) fd_midi
syz_open_dev$dmmidi(dev ptr[in, string["/dev/dmmidi#"]], id intptr, flags flags[open_flags]) fd_midi
syz_open_dev$admmidi(dev ptr[in, string["/dev/admmidi#"]], id intptr, flags flags[open_flags]) fd_midi
syz_open_dev$amidi(dev ptr[in, string["/dev/amidi#"]], id intptr, flags flags[open_flags]) fd_midi
syz_open_dev$midi(dev ptr[in, string["/dev/midi#"]], id intptr, flags flags[open_flags]) fd_midi

write$midi(fd fd_midi, data ptr[in, array[int8]], len bytesize[data])
read$midi(fd fd_midi, data ptr[out, array[int8]], len bytesize[data])
ioctl$SNDRV_RAWMIDI_IOCTL_PVERSION(fd fd_midi, cmd const[SNDRV_RAWMIDI_IOCTL_PVERSION], arg ptr[out, int32])
ioctl$SNDRV_RAWMIDI_IOCTL_INFO(fd fd_midi, cmd const[SNDRV_RAWMIDI_IOCTL_INFO], arg ptr[out, snd_rawmidi_info])
ioctl$SNDRV_RAWMIDI_IOCTL_PARAMS(fd fd_midi, cmd const[SNDRV_RAWMIDI_IOCTL_PARAMS], arg ptr[inout, snd_rawmidi_params])
ioctl$SNDRV_RAWMIDI_IOCTL_STATUS32(fd fd_midi, cmd const[SNDRV_RAWMIDI_IOCTL_STATUS32], arg ptr[inout, snd_rawmidi_status32])
ioctl$SNDRV_RAWMIDI_IOCTL_STATUS64(fd fd_midi, cmd const[SNDRV_RAWMIDI_IOCTL_STATUS64], arg ptr[inout, snd_rawmidi_status64])
ioctl$SNDRV_RAWMIDI_IOCTL_DROP(fd fd_midi, cmd const[SNDRV_RAWMIDI_IOCTL_DROP], arg ptr[in, int32])
ioctl$SNDRV_RAWMIDI_IOCTL_DRAIN(fd fd_midi, cmd const[SNDRV_RAWMIDI_IOCTL_DRAIN], arg ptr[in, int32])

snd_rawmidi_info {
	device			int32
	subdevice		int32
	stream			flags[sndrv_rawmidi_stream, int32]
	card			const[0, int32]
	flags			const[0, int32]
	id			array[const[0, int8], 64]
	name			array[const[0, int8], 80]
	subname			array[const[0, int8], 32]
	subdevices_count	const[0, int32]
	subdevices_avail	const[0, int32]
	reserved		array[const[0, int8], 64]
}

snd_rawmidi_params {
	stream			flags[sndrv_rawmidi_stream, int32]
	buffer_size		intptr
	avail_min		intptr
	no_active_sensing	int32:1
	mode			int32
	reserved		array[const[0, int8], 12]
}

snd_rawmidi_status32 {
	stream		flags[sndrv_rawmidi_stream, int32]
	tstamp_sec	const[0, int32]
	tstamp_nsec	const[0, int32]
	avail		const[0, int32]
	xruns		const[0, int32]
	reserved	array[const[0, int8], 16]
}

snd_rawmidi_status64 {
	stream		flags[sndrv_rawmidi_stream, int32]
	rsvd		array[const[0, int8], 4]
	tstamp_sec	const[0, int64]
	tstamp_nsec	const[0, int64]
	avail		const[0, intptr]
	xruns		const[0, intptr]
	reserved	array[const[0, int8], 16]
}

define SNDRV_RAWMIDI_IOCTL_STATUS32	_IOWR('W', 0x20, char[36])
define SNDRV_RAWMIDI_IOCTL_STATUS64	_IOWR('W', 0x20, char[56])

sndrv_rawmidi_stream = SNDRV_RAWMIDI_STREAM_OUTPUT, SNDRV_RAWMIDI_STREAM_INPUT