syzkaller/sys/fuse.txt

# Copyright 2015 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 <asm/ioctls.h>
include <linux/stat.h>
include <uapi/linux/fuse.h>

resource fd_fuse[fd]

syz_fuse_mount(target filename, mode flags[fuse_mode], uid uid, gid gid, maxread intptr, flags flags[mount_flags]) fd_fuse
syz_fuseblk_mount(target filename, blkdev filename, mode flags[fuse_mode], uid uid, gid gid, maxread intptr, blksize intptr, flags flags[mount_flags]) fd_fuse
ioctl$FUSE_DEV_IOC_CLONE(fd fd_fuse, cmd const[FUSE_DEV_IOC_CLONE], arg ptr[in, fd_fuse])
write$fuse_init(fd fd_fuse, arg ptr[in, fuse_init_out], len len[arg])
write$fuse_interrupt(fd fd_fuse, arg ptr[in, fuse_interrupt_out], len len[arg])
write$fuse_bmap(fd fd_fuse, arg ptr[in, fuse_bmap_out], len len[arg])
write$fuse_ioctl(fd fd_fuse, arg ptr[in, fuse_ioctl_out], len len[arg])
write$fuse_poll(fd fd_fuse, arg ptr[in, fuse_poll_out], len len[arg])
write$fuse_notify_poll_wakeup(fd fd_fuse, arg ptr[in, fuse_notify_poll_wakeup_out], len len[arg])
write$fuse_notify_inval_inode(fd fd_fuse, arg ptr[in, fuse_notify_inval_inode_out], len len[arg])
write$fuse_notify_inval_entry(fd fd_fuse, arg ptr[in, fuse_notify_inval_entry_out], len len[arg])
write$fuse_notify_delete(fd fd_fuse, arg ptr[in, fuse_notify_delete_out], len len[arg])
write$fuse_notify_store(fd fd_fuse, arg ptr[in, fuse_notify_store_out], len len[arg])
write$fuse_notify_retrieve(fd fd_fuse, arg ptr[in, fuse_notify_retrieve_out], len len[arg])

# 1 stands for default_permissions, 2 - allow_other
fuse_mode = 1, 2, S_IFREG, S_IFCHR, S_IFBLK, S_IFIFO, S_IFSOCK, S_IFLNK, S_IFDIR

fuse_init_out {
	len	len[parent, int32]
	err	int32
	unique	int64

	maj	int32
	min	int32
	readah	int32
	flags	int32
	backg	int16
	congest	int16
	maxwr	int32
	timegr	int32
	unused0	const[0, int32]
	unused1	const[0, int32]
	unused2	const[0, int32]
	unused3	const[0, int32]
	unused4	const[0, int32]
	unused5	const[0, int32]
	unused6	const[0, int32]
	unused7	const[0, int32]
	unused8	const[0, int32]
}

fuse_interrupt_out {
	len	len[parent, int32]
	err	int32
	unique	int64
}

fuse_bmap_out {
	len	len[parent, int32]
	err	int32
	unique	int64

	block	int64
}

fuse_ioctl_out {
	len	len[parent, int32]
	err	int32
	unique	int64

	res	int32
	flags	int32
	iniovs	int32
	outiovs	int32
}

fuse_poll_out {
	len	len[parent, int32]
	err	int32
	unique	int64

	revents	int32
}

fuse_notify_poll_wakeup_out {
	len	len[parent, int32]
	err	int32
	unique	const[0, int64]

	kh	int16
}

fuse_notify_inval_inode_out {
	len	len[parent, int32]
	err	int32
	unique	const[0, int64]

	ino	int64
	off	int64
	len	int16
}

fuse_notify_inval_entry_out {
	len	len[parent, int32]
	err	int32
	unique	const[0, int64]

	parent	int64
	namelen	int32
}

fuse_notify_delete_out {
	len	len[parent, int32]
	err	int32
	unique	const[0, int64]

	parent	int64
	child	int64
	namelen	int32
}

fuse_notify_store_out {
	len	len[parent, int32]
	err	int32
	unique	const[0, int64]

	nodeid	int64
	off	int64
	size	int32
}

fuse_notify_retrieve_out {
	len	len[parent, int32]
	err	int32
	unique	const[0, int64]

	unique	int64
	nodeid	int64
	off	int64
	size	int32
}