# Copyright 2026 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 <linux/fs.h>
include <fs/ocfs2/ocfs2_fs.h>
include <fs/ocfs2/ocfs2_ioctl.h>

define OIU_UUID_STR_LEN	OCFS2_TEXT_UUID_LEN + 1

ioctl$OCFS2_IOC_RESVSP(fd fd, cmd const[OCFS2_IOC_RESVSP], arg ptr[in, ocfs2_space_resv])
ioctl$OCFS2_IOC_RESVSP64(fd fd, cmd const[OCFS2_IOC_RESVSP64], arg ptr[in, ocfs2_space_resv])
ioctl$OCFS2_IOC_UNRESVSP(fd fd, cmd const[OCFS2_IOC_UNRESVSP], arg ptr[in, ocfs2_space_resv])
ioctl$OCFS2_IOC_UNRESVSP64(fd fd, cmd const[OCFS2_IOC_UNRESVSP64], arg ptr[in, ocfs2_space_resv])
ioctl$OCFS2_IOC_GROUP_EXTEND(fd fd, cmd const[OCFS2_IOC_GROUP_EXTEND], arg ptr[in, int32])
ioctl$OCFS2_IOC_GROUP_ADD(fd fd, cmd const[OCFS2_IOC_GROUP_ADD], arg ptr[in, ocfs2_new_group_input])
ioctl$OCFS2_IOC_GROUP_ADD64(fd fd, cmd const[OCFS2_IOC_GROUP_ADD64], arg ptr[in, ocfs2_new_group_input])
ioctl$OCFS2_IOC_REFLINK(fd fd, cmd const[OCFS2_IOC_REFLINK], arg ptr[in, reflink_arguments])
ioctl$OCFS2_IOC_INFO(fd fd, cmd const[OCFS2_IOC_INFO], arg ptr[in, ocfs2_info])
ioctl$OCFS2_IOC_MOVE_EXT(fd fd, cmd const[OCFS2_IOC_MOVE_EXT], arg ptr[inout, ocfs2_move_extents])

ocfs2_l_type = F_RDLCK, F_WRLCK, F_UNLCK
ocfs2_l_whence = SEEK_SET, SEEK_CUR, SEEK_END
ocfs2_move_ext_flags = OCFS2_MOVE_EXT_FL_AUTO_DEFRAG, OCFS2_MOVE_EXT_FL_PART_DEFRAG, OCFS2_MOVE_EXT_FL_COMPLETE
ocfs2_info_flags = OCFS2_INFO_FL_ERROR, OCFS2_INFO_FL_FILLED, OCFS2_INFO_FL_NON_COHERENT

ocfs2_space_resv {
	l_type		flags[ocfs2_l_type, int16]
	l_whence	flags[ocfs2_l_whence, int16]
	l_start		int64
	l_len		int64
	l_sysid		int32
	l_pid		int32
	l_pad		array[const[0, int32], 4]
}

ocfs2_new_group_input {
	group		int64
	clusters	int32
	frees		int32
	chain		int16
	reserved1	const[0, int16]
	reserved2	const[0, int32]
}

reflink_arguments {
	old_path	ptr64[in, string]
	new_path	ptr64[in, string]
	preserve	int64
}

ocfs2_info {
	oi_requests	ptr64[in, array[ptr64[inout, ocfs2_info_request_union], OCFS2_INFO_MAX_REQUEST]]
	oi_count	len[oi_requests, int32]
	oi_pad		const[0, int32]
}

ocfs2_info_request_union [
	clustersize	ocfs2_info_clustersize
	blocksize	ocfs2_info_blocksize
	maxslots	ocfs2_info_maxslots
	label		ocfs2_info_label
	uuid		ocfs2_info_uuid
	features	ocfs2_info_fs_features
	journal		ocfs2_info_journal_size
	freeinode	ocfs2_info_freeinode
	freefrag	ocfs2_info_freefrag
] [varlen]

ocfs2_info_clustersize {
	ic_req		ocfs2_info_request_typed[OCFS2_INFO_CLUSTERSIZE]
	ic_clustersize	int32	(out)
	ic_pad		const[0, int32]
}

ocfs2_info_blocksize {
	ib_req		ocfs2_info_request_typed[OCFS2_INFO_BLOCKSIZE]
	ib_blocksize	int32	(out)
	ib_pad		const[0, int32]
}

ocfs2_info_maxslots {
	im_req		ocfs2_info_request_typed[OCFS2_INFO_MAXSLOTS]
	im_max_slots	int32	(out)
	im_pad		const[0, int32]
}

ocfs2_info_label {
	il_req		ocfs2_info_request_typed[OCFS2_INFO_LABEL]
	il_label	array[int8, OCFS2_MAX_VOL_LABEL_LEN]	(out)
} [packed]

ocfs2_info_uuid {
	iu_req		ocfs2_info_request_typed[OCFS2_INFO_UUID]
	iu_uuid_str	array[int8, OIU_UUID_STR_LEN]	(out)
} [packed]

ocfs2_info_fs_features {
	if_req			ocfs2_info_request_typed[OCFS2_INFO_FS_FEATURES]
	if_compat_features	int32	(out)
	if_incompat_features	int32	(out)
	if_ro_compat_features	int32	(out)
	if_pad			const[0, int32]
}

ocfs2_info_journal_size {
	ij_req		ocfs2_info_request_typed[OCFS2_INFO_JOURNAL_SIZE]
	ij_journal_size	int64	(out)
}

ocfs2_info_freeinode {
	ifi_req		ocfs2_info_request_typed[OCFS2_INFO_FREEINODE]
	ifi_stat	array[ocfs2_info_local_freeinode, OCFS2_MAX_SLOTS]
	ifi_slotnum	int32	(out)
	ifi_pad		const[0, int32]
}

ocfs2_info_local_freeinode {
	lfi_total	int64
	lfi_free	int64
}

ocfs2_info_freefrag {
	iff_req		ocfs2_info_request_typed[OCFS2_INFO_FREEFRAG]
	iff_ffs		ocfs2_info_freefrag_stats	(out)
	iff_chunksize	int32
	iff_pad		const[0, int32]
}

ocfs2_info_freefrag_stats {
	ffs_fc_hist		ocfs2_info_free_chunk_list
	ffs_clusters		int32
	ffs_free_clusters	int32
	ffs_free_chunks		int32
	ffs_free_chunks_real	int32
	ffs_min			int32
	ffs_max			int32
	ffs_avg			int32
	ffs_pad			const[0, int32]
}

ocfs2_info_free_chunk_list {
	fc_chunks	array[int32, OCFS2_INFO_MAX_HIST]
	fc_clusters	array[int32, OCFS2_INFO_MAX_HIST]
}

type ocfs2_info_request_typed[CODE] {
	ir_magic	const[OCFS2_INFO_MAGIC, int32]
	ir_code		const[CODE, int32]
	ir_size		len[parent, int32]
	ir_flags	flags[ocfs2_info_flags, int32]
}

ocfs2_move_extents {
	me_start	int64	(in)
	me_len		int64	(in)
	me_goal		int64	(in)
	me_threshold	int64	(in)
	me_flags	flags[ocfs2_move_ext_flags, int64]	(in)
	me_moved_len	int64	(out)
	me_new_offset	int64	(out)
	me_reserved	array[const[0, int32], 2]
}