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/* SPDX-License-Identifier: GPL-2.0 */
/* XDR types for nfsd. This is mainly a typing exercise. */
#ifndef _LINUX_NFSD_XDR_H
#define _LINUX_NFSD_XDR_H
#include <linux/vfs.h>
#include "vfs.h"
struct nfsd_attrstat {
__be32 status;
struct svc_fh fh;
struct kstat stat;
};
/*
* Declared here rather than in nfsproc.c with the other proc wrappers
* because READDIR's encode hooks in nfsxdr.c reference it. The xdrgen
* field must be first so the struct can be cast to its XDR type for the
* RPC dispatch layer.
*
* The file handle lives here rather than in an argument wrapper: the
* RPC layer zeroes the result before decode, so ->pc_release can run on
* a request that failed to decode.
*/
struct readdirres_wrapper {
struct readdirres xdrgen;
struct svc_fh fh;
/* Streaming state for encoding the reply's entry list */
struct nfsd_readdir_iter iter; /* directory reader */
u32 count; /* client's reply size hint */
u32 space_left; /* remaining entry budget */
unsigned int cookie_offset; /* prev entry's cookie slot */
};
static_assert(offsetof(struct readdirres_wrapper, xdrgen) == 0);
bool nfssvc_decode_fhandleargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
bool nfssvc_encode_attrstatres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
void nfssvc_encode_nfscookie(struct xdr_stream *xdr, unsigned int pos,
u32 cookie);
void nfssvc_release_readdirres(struct svc_rqst *rqstp);
void nfssvc_release_attrstat(struct svc_rqst *rqstp);
/* Helper functions for NFSv2 ACL code */
bool svcxdr_decode_fhandle(struct xdr_stream *xdr, struct svc_fh *fhp);
bool svcxdr_encode_stat(struct xdr_stream *xdr, __be32 status);
bool svcxdr_encode_fattr(struct svc_rqst *rqstp, struct xdr_stream *xdr,
const struct svc_fh *fhp, const struct kstat *stat);
#endif /* _LINUX_NFSD_XDR_H */
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