mirror of
https://github.com/torvalds/linux.git
synced 2024-11-27 06:31:52 +00:00
130e2054d4
Returning an undecorated integer is an age-old trope, but it's not clear (even to previous experts in this code) that the only valid return values are 1 and 0. These functions do not return a negative errno, rpc_stat value, or a positive length. Document there are only two valid return values by having .pc_encode return only true or false. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
315 lines
7.8 KiB
C
315 lines
7.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* XDR types for NFSv3 in nfsd.
|
|
*
|
|
* Copyright (C) 1996-1998, Olaf Kirch <okir@monad.swb.de>
|
|
*/
|
|
|
|
#ifndef _LINUX_NFSD_XDR3_H
|
|
#define _LINUX_NFSD_XDR3_H
|
|
|
|
#include "xdr.h"
|
|
|
|
struct nfsd3_sattrargs {
|
|
struct svc_fh fh;
|
|
struct iattr attrs;
|
|
int check_guard;
|
|
time64_t guardtime;
|
|
};
|
|
|
|
struct nfsd3_diropargs {
|
|
struct svc_fh fh;
|
|
char * name;
|
|
unsigned int len;
|
|
};
|
|
|
|
struct nfsd3_accessargs {
|
|
struct svc_fh fh;
|
|
__u32 access;
|
|
};
|
|
|
|
struct nfsd3_readargs {
|
|
struct svc_fh fh;
|
|
__u64 offset;
|
|
__u32 count;
|
|
};
|
|
|
|
struct nfsd3_writeargs {
|
|
svc_fh fh;
|
|
__u64 offset;
|
|
__u32 count;
|
|
int stable;
|
|
__u32 len;
|
|
struct xdr_buf payload;
|
|
};
|
|
|
|
struct nfsd3_createargs {
|
|
struct svc_fh fh;
|
|
char * name;
|
|
unsigned int len;
|
|
int createmode;
|
|
struct iattr attrs;
|
|
__be32 * verf;
|
|
};
|
|
|
|
struct nfsd3_mknodargs {
|
|
struct svc_fh fh;
|
|
char * name;
|
|
unsigned int len;
|
|
__u32 ftype;
|
|
__u32 major, minor;
|
|
struct iattr attrs;
|
|
};
|
|
|
|
struct nfsd3_renameargs {
|
|
struct svc_fh ffh;
|
|
char * fname;
|
|
unsigned int flen;
|
|
struct svc_fh tfh;
|
|
char * tname;
|
|
unsigned int tlen;
|
|
};
|
|
|
|
struct nfsd3_linkargs {
|
|
struct svc_fh ffh;
|
|
struct svc_fh tfh;
|
|
char * tname;
|
|
unsigned int tlen;
|
|
};
|
|
|
|
struct nfsd3_symlinkargs {
|
|
struct svc_fh ffh;
|
|
char * fname;
|
|
unsigned int flen;
|
|
char * tname;
|
|
unsigned int tlen;
|
|
struct iattr attrs;
|
|
struct kvec first;
|
|
};
|
|
|
|
struct nfsd3_readdirargs {
|
|
struct svc_fh fh;
|
|
__u64 cookie;
|
|
__u32 count;
|
|
__be32 * verf;
|
|
};
|
|
|
|
struct nfsd3_commitargs {
|
|
struct svc_fh fh;
|
|
__u64 offset;
|
|
__u32 count;
|
|
};
|
|
|
|
struct nfsd3_getaclargs {
|
|
struct svc_fh fh;
|
|
__u32 mask;
|
|
};
|
|
|
|
struct posix_acl;
|
|
struct nfsd3_setaclargs {
|
|
struct svc_fh fh;
|
|
__u32 mask;
|
|
struct posix_acl *acl_access;
|
|
struct posix_acl *acl_default;
|
|
};
|
|
|
|
struct nfsd3_attrstat {
|
|
__be32 status;
|
|
struct svc_fh fh;
|
|
struct kstat stat;
|
|
};
|
|
|
|
/* LOOKUP, CREATE, MKDIR, SYMLINK, MKNOD */
|
|
struct nfsd3_diropres {
|
|
__be32 status;
|
|
struct svc_fh dirfh;
|
|
struct svc_fh fh;
|
|
};
|
|
|
|
struct nfsd3_accessres {
|
|
__be32 status;
|
|
struct svc_fh fh;
|
|
__u32 access;
|
|
struct kstat stat;
|
|
};
|
|
|
|
struct nfsd3_readlinkres {
|
|
__be32 status;
|
|
struct svc_fh fh;
|
|
__u32 len;
|
|
struct page **pages;
|
|
};
|
|
|
|
struct nfsd3_readres {
|
|
__be32 status;
|
|
struct svc_fh fh;
|
|
unsigned long count;
|
|
__u32 eof;
|
|
struct page **pages;
|
|
};
|
|
|
|
struct nfsd3_writeres {
|
|
__be32 status;
|
|
struct svc_fh fh;
|
|
unsigned long count;
|
|
int committed;
|
|
__be32 verf[2];
|
|
};
|
|
|
|
struct nfsd3_renameres {
|
|
__be32 status;
|
|
struct svc_fh ffh;
|
|
struct svc_fh tfh;
|
|
};
|
|
|
|
struct nfsd3_linkres {
|
|
__be32 status;
|
|
struct svc_fh tfh;
|
|
struct svc_fh fh;
|
|
};
|
|
|
|
struct nfsd3_readdirres {
|
|
/* Components of the reply */
|
|
__be32 status;
|
|
struct svc_fh fh;
|
|
__be32 verf[2];
|
|
|
|
/* Used to encode the reply's entry list */
|
|
struct xdr_stream xdr;
|
|
struct xdr_buf dirlist;
|
|
struct svc_fh scratch;
|
|
struct readdir_cd common;
|
|
unsigned int cookie_offset;
|
|
struct svc_rqst * rqstp;
|
|
|
|
};
|
|
|
|
struct nfsd3_fsstatres {
|
|
__be32 status;
|
|
struct kstatfs stats;
|
|
__u32 invarsec;
|
|
};
|
|
|
|
struct nfsd3_fsinfores {
|
|
__be32 status;
|
|
__u32 f_rtmax;
|
|
__u32 f_rtpref;
|
|
__u32 f_rtmult;
|
|
__u32 f_wtmax;
|
|
__u32 f_wtpref;
|
|
__u32 f_wtmult;
|
|
__u32 f_dtpref;
|
|
__u64 f_maxfilesize;
|
|
__u32 f_properties;
|
|
};
|
|
|
|
struct nfsd3_pathconfres {
|
|
__be32 status;
|
|
__u32 p_link_max;
|
|
__u32 p_name_max;
|
|
__u32 p_no_trunc;
|
|
__u32 p_chown_restricted;
|
|
__u32 p_case_insensitive;
|
|
__u32 p_case_preserving;
|
|
};
|
|
|
|
struct nfsd3_commitres {
|
|
__be32 status;
|
|
struct svc_fh fh;
|
|
__be32 verf[2];
|
|
};
|
|
|
|
struct nfsd3_getaclres {
|
|
__be32 status;
|
|
struct svc_fh fh;
|
|
int mask;
|
|
struct posix_acl *acl_access;
|
|
struct posix_acl *acl_default;
|
|
struct kstat stat;
|
|
};
|
|
|
|
/* dummy type for release */
|
|
struct nfsd3_fhandle_pair {
|
|
__u32 dummy;
|
|
struct svc_fh fh1;
|
|
struct svc_fh fh2;
|
|
};
|
|
|
|
/*
|
|
* Storage requirements for XDR arguments and results.
|
|
*/
|
|
union nfsd3_xdrstore {
|
|
struct nfsd3_sattrargs sattrargs;
|
|
struct nfsd3_diropargs diropargs;
|
|
struct nfsd3_readargs readargs;
|
|
struct nfsd3_writeargs writeargs;
|
|
struct nfsd3_createargs createargs;
|
|
struct nfsd3_renameargs renameargs;
|
|
struct nfsd3_linkargs linkargs;
|
|
struct nfsd3_symlinkargs symlinkargs;
|
|
struct nfsd3_readdirargs readdirargs;
|
|
struct nfsd3_diropres diropres;
|
|
struct nfsd3_accessres accessres;
|
|
struct nfsd3_readlinkres readlinkres;
|
|
struct nfsd3_readres readres;
|
|
struct nfsd3_writeres writeres;
|
|
struct nfsd3_renameres renameres;
|
|
struct nfsd3_linkres linkres;
|
|
struct nfsd3_readdirres readdirres;
|
|
struct nfsd3_fsstatres fsstatres;
|
|
struct nfsd3_fsinfores fsinfores;
|
|
struct nfsd3_pathconfres pathconfres;
|
|
struct nfsd3_commitres commitres;
|
|
struct nfsd3_getaclres getaclres;
|
|
};
|
|
|
|
#define NFS3_SVC_XDRSIZE sizeof(union nfsd3_xdrstore)
|
|
|
|
bool nfs3svc_decode_fhandleargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
|
|
bool nfs3svc_decode_sattrargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
|
|
bool nfs3svc_decode_diropargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
|
|
bool nfs3svc_decode_accessargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
|
|
bool nfs3svc_decode_readargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
|
|
bool nfs3svc_decode_writeargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
|
|
bool nfs3svc_decode_createargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
|
|
bool nfs3svc_decode_mkdirargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
|
|
bool nfs3svc_decode_mknodargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
|
|
bool nfs3svc_decode_renameargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
|
|
bool nfs3svc_decode_linkargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
|
|
bool nfs3svc_decode_symlinkargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
|
|
bool nfs3svc_decode_readdirargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
|
|
bool nfs3svc_decode_readdirplusargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
|
|
bool nfs3svc_decode_commitargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
|
|
|
|
bool nfs3svc_encode_getattrres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
|
|
bool nfs3svc_encode_wccstat(struct svc_rqst *rqstp, struct xdr_stream *xdr);
|
|
bool nfs3svc_encode_lookupres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
|
|
bool nfs3svc_encode_accessres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
|
|
bool nfs3svc_encode_readlinkres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
|
|
bool nfs3svc_encode_readres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
|
|
bool nfs3svc_encode_writeres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
|
|
bool nfs3svc_encode_createres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
|
|
bool nfs3svc_encode_renameres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
|
|
bool nfs3svc_encode_linkres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
|
|
bool nfs3svc_encode_readdirres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
|
|
bool nfs3svc_encode_fsstatres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
|
|
bool nfs3svc_encode_fsinfores(struct svc_rqst *rqstp, struct xdr_stream *xdr);
|
|
bool nfs3svc_encode_pathconfres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
|
|
bool nfs3svc_encode_commitres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
|
|
|
|
void nfs3svc_release_fhandle(struct svc_rqst *);
|
|
void nfs3svc_release_fhandle2(struct svc_rqst *);
|
|
|
|
void nfs3svc_encode_cookie3(struct nfsd3_readdirres *resp, u64 offset);
|
|
int nfs3svc_encode_entry3(void *data, const char *name, int namlen,
|
|
loff_t offset, u64 ino, unsigned int d_type);
|
|
int nfs3svc_encode_entryplus3(void *data, const char *name, int namlen,
|
|
loff_t offset, u64 ino, unsigned int d_type);
|
|
/* Helper functions for NFSv3 ACL code */
|
|
bool svcxdr_decode_nfs_fh3(struct xdr_stream *xdr, struct svc_fh *fhp);
|
|
bool svcxdr_encode_nfsstat3(struct xdr_stream *xdr, __be32 status);
|
|
bool svcxdr_encode_post_op_attr(struct svc_rqst *rqstp, struct xdr_stream *xdr,
|
|
const struct svc_fh *fhp);
|
|
|
|
#endif /* _LINUX_NFSD_XDR3_H */
|