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- /* SPDX-License-Identifier: GPL-2.0 */
- /* XDR types for nfsd. This is mainly a typing exercise. */
- #ifndef LINUX_NFSD_H
- #define LINUX_NFSD_H
- #include <linux/vfs.h>
- #include "nfsd.h"
- #include "nfsfh.h"
- struct nfsd_fhandle {
- struct svc_fh fh;
- };
- struct nfsd_sattrargs {
- struct svc_fh fh;
- struct iattr attrs;
- };
- struct nfsd_diropargs {
- struct svc_fh fh;
- char * name;
- unsigned int len;
- };
- struct nfsd_readargs {
- struct svc_fh fh;
- __u32 offset;
- __u32 count;
- };
- struct nfsd_writeargs {
- svc_fh fh;
- __u32 offset;
- __u32 len;
- struct xdr_buf payload;
- };
- struct nfsd_createargs {
- struct svc_fh fh;
- char * name;
- unsigned int len;
- struct iattr attrs;
- };
- struct nfsd_renameargs {
- struct svc_fh ffh;
- char * fname;
- unsigned int flen;
- struct svc_fh tfh;
- char * tname;
- unsigned int tlen;
- };
- struct nfsd_linkargs {
- struct svc_fh ffh;
- struct svc_fh tfh;
- char * tname;
- unsigned int tlen;
- };
- struct nfsd_symlinkargs {
- struct svc_fh ffh;
- char * fname;
- unsigned int flen;
- char * tname;
- unsigned int tlen;
- struct iattr attrs;
- struct kvec first;
- };
- struct nfsd_readdirargs {
- struct svc_fh fh;
- __u32 cookie;
- __u32 count;
- };
- struct nfsd_stat {
- __be32 status;
- };
- struct nfsd_attrstat {
- __be32 status;
- struct svc_fh fh;
- struct kstat stat;
- };
- struct nfsd_diropres {
- __be32 status;
- struct svc_fh fh;
- struct kstat stat;
- };
- struct nfsd_readlinkres {
- __be32 status;
- int len;
- struct page *page;
- };
- struct nfsd_readres {
- __be32 status;
- struct svc_fh fh;
- unsigned long count;
- struct kstat stat;
- struct page **pages;
- };
- struct nfsd_readdirres {
- /* Components of the reply */
- __be32 status;
- int count;
- /* Used to encode the reply's entry list */
- struct xdr_stream xdr;
- struct xdr_buf dirlist;
- struct readdir_cd common;
- unsigned int cookie_offset;
- };
- struct nfsd_statfsres {
- __be32 status;
- struct kstatfs stats;
- };
- /*
- * Storage requirements for XDR arguments and results.
- */
- union nfsd_xdrstore {
- struct nfsd_sattrargs sattr;
- struct nfsd_diropargs dirop;
- struct nfsd_readargs read;
- struct nfsd_writeargs write;
- struct nfsd_createargs create;
- struct nfsd_renameargs rename;
- struct nfsd_linkargs link;
- struct nfsd_symlinkargs symlink;
- struct nfsd_readdirargs readdir;
- };
- #define NFS2_SVC_XDRSIZE sizeof(union nfsd_xdrstore)
- bool nfssvc_decode_fhandleargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
- bool nfssvc_decode_sattrargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
- bool nfssvc_decode_diropargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
- bool nfssvc_decode_readargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
- bool nfssvc_decode_writeargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
- bool nfssvc_decode_createargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
- bool nfssvc_decode_renameargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
- bool nfssvc_decode_linkargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
- bool nfssvc_decode_symlinkargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
- bool nfssvc_decode_readdirargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
- bool nfssvc_encode_statres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
- bool nfssvc_encode_attrstatres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
- bool nfssvc_encode_diropres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
- bool nfssvc_encode_readlinkres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
- bool nfssvc_encode_readres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
- bool nfssvc_encode_statfsres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
- bool nfssvc_encode_readdirres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
- void nfssvc_encode_nfscookie(struct nfsd_readdirres *resp, u32 offset);
- int nfssvc_encode_entry(void *data, const char *name, int namlen,
- loff_t offset, u64 ino, unsigned int d_type);
- void nfssvc_release_attrstat(struct svc_rqst *rqstp);
- void nfssvc_release_diropres(struct svc_rqst *rqstp);
- void nfssvc_release_readres(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_H */
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