linux/fs/lockd/svcxdr.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Encode/decode NLM basic data types
 *
 * Basic NLMv3 XDR data types are not defined in an IETF standards
 * document.  X/Open has a description of these data types that
 * is useful.  See Chapter 10 of "Protocols for Interworking:
 * XNFS, Version 3W".
 *
 * Basic NLMv4 XDR data types are defined in Appendix II.1.4 of
 * RFC 1813: "NFS Version 3 Protocol Specification".
 *
 * Author: Chuck Lever <[email protected]>
 *
 * Copyright (c) 2020, Oracle and/or its affiliates.
 */

#ifndef _LOCKD_SVCXDR_H_
#define _LOCKD_SVCXDR_H_

static inline bool
svcxdr_decode_stats(struct xdr_stream *xdr, __be32 *status)
{ … }

static inline bool
svcxdr_encode_stats(struct xdr_stream *xdr, __be32 status)
{ … }

static inline bool
svcxdr_decode_string(struct xdr_stream *xdr, char **data, unsigned int *data_len)
{ … }

/*
 * NLM cookies are defined by specification to be a variable-length
 * XDR opaque no longer than 1024 bytes. However, this implementation
 * limits their length to 32 bytes, and treats zero-length cookies
 * specially.
 */
static inline bool
svcxdr_decode_cookie(struct xdr_stream *xdr, struct nlm_cookie *cookie)
{ … }

static inline bool
svcxdr_encode_cookie(struct xdr_stream *xdr, const struct nlm_cookie *cookie)
{ … }

static inline bool
svcxdr_decode_owner(struct xdr_stream *xdr, struct xdr_netobj *obj)
{ … }

static inline bool
svcxdr_encode_owner(struct xdr_stream *xdr, const struct xdr_netobj *obj)
{ … }

#endif /* _LOCKD_SVCXDR_H_ */