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Greg Kroah-Hartmanb2441312017-11-01 15:07:57 +01001/* SPDX-License-Identifier: GPL-2.0 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07003 * XDR types for NFSv3 in nfsd.
4 *
5 * Copyright (C) 1996-1998, Olaf Kirch <okir@monad.swb.de>
6 */
7
8#ifndef _LINUX_NFSD_XDR3_H
9#define _LINUX_NFSD_XDR3_H
10
Boaz Harrosh9a74af22009-12-03 20:30:56 +020011#include "xdr.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070012
13struct nfsd3_sattrargs {
14 struct svc_fh fh;
15 struct iattr attrs;
16 int check_guard;
Arnd Bergmann2a1aa482019-11-03 17:50:18 +010017 time64_t guardtime;
Linus Torvalds1da177e2005-04-16 15:20:36 -070018};
19
20struct nfsd3_diropargs {
21 struct svc_fh fh;
22 char * name;
Chuck Lever29d5e552007-11-01 16:57:04 -040023 unsigned int len;
Linus Torvalds1da177e2005-04-16 15:20:36 -070024};
25
26struct nfsd3_accessargs {
27 struct svc_fh fh;
Chuck Lever3b921a22020-10-20 14:32:04 -040028 __u32 access;
Linus Torvalds1da177e2005-04-16 15:20:36 -070029};
30
31struct nfsd3_readargs {
32 struct svc_fh fh;
33 __u64 offset;
34 __u32 count;
Linus Torvalds1da177e2005-04-16 15:20:36 -070035};
36
37struct nfsd3_writeargs {
38 svc_fh fh;
39 __u64 offset;
40 __u32 count;
41 int stable;
NeilBrown0ba75362005-11-07 01:00:26 -080042 __u32 len;
Chuck Leverdae9a6c2021-09-30 17:06:21 -040043 struct xdr_buf payload;
Linus Torvalds1da177e2005-04-16 15:20:36 -070044};
45
46struct nfsd3_createargs {
47 struct svc_fh fh;
48 char * name;
Chuck Lever29d5e552007-11-01 16:57:04 -040049 unsigned int len;
Linus Torvalds1da177e2005-04-16 15:20:36 -070050 int createmode;
51 struct iattr attrs;
Al Viro91f07162006-10-19 23:28:57 -070052 __be32 * verf;
Linus Torvalds1da177e2005-04-16 15:20:36 -070053};
54
55struct nfsd3_mknodargs {
56 struct svc_fh fh;
57 char * name;
Chuck Lever29d5e552007-11-01 16:57:04 -040058 unsigned int len;
Linus Torvalds1da177e2005-04-16 15:20:36 -070059 __u32 ftype;
60 __u32 major, minor;
61 struct iattr attrs;
62};
63
64struct nfsd3_renameargs {
65 struct svc_fh ffh;
66 char * fname;
Chuck Lever29d5e552007-11-01 16:57:04 -040067 unsigned int flen;
Linus Torvalds1da177e2005-04-16 15:20:36 -070068 struct svc_fh tfh;
69 char * tname;
Chuck Lever29d5e552007-11-01 16:57:04 -040070 unsigned int tlen;
Linus Torvalds1da177e2005-04-16 15:20:36 -070071};
72
Linus Torvalds1da177e2005-04-16 15:20:36 -070073struct nfsd3_linkargs {
74 struct svc_fh ffh;
75 struct svc_fh tfh;
76 char * tname;
Chuck Lever29d5e552007-11-01 16:57:04 -040077 unsigned int tlen;
Linus Torvalds1da177e2005-04-16 15:20:36 -070078};
79
80struct nfsd3_symlinkargs {
81 struct svc_fh ffh;
82 char * fname;
Chuck Lever29d5e552007-11-01 16:57:04 -040083 unsigned int flen;
Linus Torvalds1da177e2005-04-16 15:20:36 -070084 char * tname;
Chuck Lever48b4ba32007-11-01 16:57:25 -040085 unsigned int tlen;
Linus Torvalds1da177e2005-04-16 15:20:36 -070086 struct iattr attrs;
Chuck Lever38a70312018-03-27 10:54:21 -040087 struct kvec first;
Linus Torvalds1da177e2005-04-16 15:20:36 -070088};
89
90struct nfsd3_readdirargs {
91 struct svc_fh fh;
92 __u64 cookie;
Linus Torvalds1da177e2005-04-16 15:20:36 -070093 __u32 count;
Al Viro91f07162006-10-19 23:28:57 -070094 __be32 * verf;
Linus Torvalds1da177e2005-04-16 15:20:36 -070095};
96
97struct nfsd3_commitargs {
98 struct svc_fh fh;
99 __u64 offset;
100 __u32 count;
101};
102
Andreas Gruenbachera257cdd2005-06-22 17:16:26 +0000103struct nfsd3_getaclargs {
104 struct svc_fh fh;
Chuck Lever635a45d2020-11-17 11:32:04 -0500105 __u32 mask;
Andreas Gruenbachera257cdd2005-06-22 17:16:26 +0000106};
107
108struct posix_acl;
109struct nfsd3_setaclargs {
110 struct svc_fh fh;
Chuck Lever427eab32020-11-17 11:37:35 -0500111 __u32 mask;
Andreas Gruenbachera257cdd2005-06-22 17:16:26 +0000112 struct posix_acl *acl_access;
113 struct posix_acl *acl_default;
114};
115
Linus Torvalds1da177e2005-04-16 15:20:36 -0700116struct nfsd3_attrstat {
Al Viro91f07162006-10-19 23:28:57 -0700117 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700118 struct svc_fh fh;
David Shawa334de22006-01-06 00:19:58 -0800119 struct kstat stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700120};
121
122/* LOOKUP, CREATE, MKDIR, SYMLINK, MKNOD */
123struct nfsd3_diropres {
Al Viro91f07162006-10-19 23:28:57 -0700124 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700125 struct svc_fh dirfh;
126 struct svc_fh fh;
127};
128
129struct nfsd3_accessres {
Al Viro91f07162006-10-19 23:28:57 -0700130 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700131 struct svc_fh fh;
132 __u32 access;
J. Bruce Fields4f4a4fa2013-02-01 15:13:04 -0500133 struct kstat stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700134};
135
136struct nfsd3_readlinkres {
Al Viro91f07162006-10-19 23:28:57 -0700137 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700138 struct svc_fh fh;
139 __u32 len;
Chuck Lever9a9c8922020-10-22 15:18:40 -0400140 struct page **pages;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700141};
142
143struct nfsd3_readres {
Al Viro91f07162006-10-19 23:28:57 -0700144 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700145 struct svc_fh fh;
146 unsigned long count;
Trond Myklebust83a63072019-08-26 13:03:11 -0400147 __u32 eof;
Chuck Levercc9bcda2020-10-22 15:23:50 -0400148 struct page **pages;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700149};
150
151struct nfsd3_writeres {
Al Viro91f07162006-10-19 23:28:57 -0700152 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700153 struct svc_fh fh;
154 unsigned long count;
155 int committed;
Trond Myklebust19e06632020-01-06 13:40:37 -0500156 __be32 verf[2];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700157};
158
159struct nfsd3_renameres {
Al Viro91f07162006-10-19 23:28:57 -0700160 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700161 struct svc_fh ffh;
162 struct svc_fh tfh;
163};
164
165struct nfsd3_linkres {
Al Viro91f07162006-10-19 23:28:57 -0700166 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700167 struct svc_fh tfh;
168 struct svc_fh fh;
169};
170
171struct nfsd3_readdirres {
Chuck Lever7f87fc22020-10-22 19:46:58 -0400172 /* Components of the reply */
Al Viro91f07162006-10-19 23:28:57 -0700173 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174 struct svc_fh fh;
Al Viro91f07162006-10-19 23:28:57 -0700175 __be32 verf[2];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700176
Chuck Lever7f87fc22020-10-22 19:46:58 -0400177 /* Used to encode the reply's entry list */
178 struct xdr_stream xdr;
179 struct xdr_buf dirlist;
180 struct svc_fh scratch;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700181 struct readdir_cd common;
Chuck Lever7f87fc22020-10-22 19:46:58 -0400182 unsigned int cookie_offset;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700183 struct svc_rqst * rqstp;
184
185};
186
187struct nfsd3_fsstatres {
Al Viro91f07162006-10-19 23:28:57 -0700188 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700189 struct kstatfs stats;
190 __u32 invarsec;
191};
192
193struct nfsd3_fsinfores {
Al Viro91f07162006-10-19 23:28:57 -0700194 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700195 __u32 f_rtmax;
196 __u32 f_rtpref;
197 __u32 f_rtmult;
198 __u32 f_wtmax;
199 __u32 f_wtpref;
200 __u32 f_wtmult;
201 __u32 f_dtpref;
202 __u64 f_maxfilesize;
203 __u32 f_properties;
204};
205
206struct nfsd3_pathconfres {
Al Viro91f07162006-10-19 23:28:57 -0700207 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700208 __u32 p_link_max;
209 __u32 p_name_max;
210 __u32 p_no_trunc;
211 __u32 p_chown_restricted;
212 __u32 p_case_insensitive;
213 __u32 p_case_preserving;
214};
215
216struct nfsd3_commitres {
Al Viro91f07162006-10-19 23:28:57 -0700217 __be32 status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700218 struct svc_fh fh;
Trond Myklebust524ff1a2020-01-06 13:40:36 -0500219 __be32 verf[2];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700220};
221
Andreas Gruenbachera257cdd2005-06-22 17:16:26 +0000222struct nfsd3_getaclres {
Al Viro91f07162006-10-19 23:28:57 -0700223 __be32 status;
Andreas Gruenbachera257cdd2005-06-22 17:16:26 +0000224 struct svc_fh fh;
225 int mask;
226 struct posix_acl *acl_access;
227 struct posix_acl *acl_default;
J. Bruce Fields4f4a4fa2013-02-01 15:13:04 -0500228 struct kstat stat;
Andreas Gruenbachera257cdd2005-06-22 17:16:26 +0000229};
230
Linus Torvalds1da177e2005-04-16 15:20:36 -0700231/* dummy type for release */
232struct nfsd3_fhandle_pair {
233 __u32 dummy;
234 struct svc_fh fh1;
235 struct svc_fh fh2;
236};
237
238/*
239 * Storage requirements for XDR arguments and results.
240 */
241union nfsd3_xdrstore {
242 struct nfsd3_sattrargs sattrargs;
243 struct nfsd3_diropargs diropargs;
244 struct nfsd3_readargs readargs;
245 struct nfsd3_writeargs writeargs;
246 struct nfsd3_createargs createargs;
247 struct nfsd3_renameargs renameargs;
248 struct nfsd3_linkargs linkargs;
249 struct nfsd3_symlinkargs symlinkargs;
250 struct nfsd3_readdirargs readdirargs;
251 struct nfsd3_diropres diropres;
252 struct nfsd3_accessres accessres;
253 struct nfsd3_readlinkres readlinkres;
254 struct nfsd3_readres readres;
255 struct nfsd3_writeres writeres;
256 struct nfsd3_renameres renameres;
257 struct nfsd3_linkres linkres;
258 struct nfsd3_readdirres readdirres;
259 struct nfsd3_fsstatres fsstatres;
260 struct nfsd3_fsinfores fsinfores;
261 struct nfsd3_pathconfres pathconfres;
262 struct nfsd3_commitres commitres;
Andreas Gruenbachera257cdd2005-06-22 17:16:26 +0000263 struct nfsd3_getaclres getaclres;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700264};
265
266#define NFS3_SVC_XDRSIZE sizeof(union nfsd3_xdrstore)
267
Chuck Leverc44b31c2021-10-12 11:57:28 -0400268bool nfs3svc_decode_fhandleargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
269bool nfs3svc_decode_sattrargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
270bool nfs3svc_decode_diropargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
271bool nfs3svc_decode_accessargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
272bool nfs3svc_decode_readargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
273bool nfs3svc_decode_writeargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
274bool nfs3svc_decode_createargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
275bool nfs3svc_decode_mkdirargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
276bool nfs3svc_decode_mknodargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
277bool nfs3svc_decode_renameargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
278bool nfs3svc_decode_linkargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
279bool nfs3svc_decode_symlinkargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
280bool nfs3svc_decode_readdirargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
281bool nfs3svc_decode_readdirplusargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
282bool nfs3svc_decode_commitargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
Chuck Lever16c66362021-10-12 11:57:22 -0400283
Chuck Lever130e2052021-10-13 10:41:13 -0400284bool nfs3svc_encode_getattrres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
285bool nfs3svc_encode_wccstat(struct svc_rqst *rqstp, struct xdr_stream *xdr);
286bool nfs3svc_encode_lookupres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
287bool nfs3svc_encode_accessres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
288bool nfs3svc_encode_readlinkres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
289bool nfs3svc_encode_readres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
290bool nfs3svc_encode_writeres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
291bool nfs3svc_encode_createres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
292bool nfs3svc_encode_renameres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
293bool nfs3svc_encode_linkres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
294bool nfs3svc_encode_readdirres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
295bool nfs3svc_encode_fsstatres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
296bool nfs3svc_encode_fsinfores(struct svc_rqst *rqstp, struct xdr_stream *xdr);
297bool nfs3svc_encode_pathconfres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
298bool nfs3svc_encode_commitres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700299
Christoph Hellwig85374882017-05-08 18:48:24 +0200300void nfs3svc_release_fhandle(struct svc_rqst *);
301void nfs3svc_release_fhandle2(struct svc_rqst *);
Chuck Levera161e6c2020-11-10 09:57:14 -0500302
303void nfs3svc_encode_cookie3(struct nfsd3_readdirres *resp, u64 offset);
Chuck Lever7f87fc22020-10-22 19:46:58 -0400304int nfs3svc_encode_entry3(void *data, const char *name, int namlen,
305 loff_t offset, u64 ino, unsigned int d_type);
306int nfs3svc_encode_entryplus3(void *data, const char *name, int namlen,
307 loff_t offset, u64 ino, unsigned int d_type);
Andreas Gruenbachera257cdd2005-06-22 17:16:26 +0000308/* Helper functions for NFSv3 ACL code */
Chuck Lever05027ea2020-11-17 11:52:04 -0500309bool svcxdr_decode_nfs_fh3(struct xdr_stream *xdr, struct svc_fh *fhp);
Chuck Lever20798df2020-11-18 16:11:42 -0500310bool svcxdr_encode_nfsstat3(struct xdr_stream *xdr, __be32 status);
311bool svcxdr_encode_post_op_attr(struct svc_rqst *rqstp, struct xdr_stream *xdr,
312 const struct svc_fh *fhp);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700313
Linus Torvalds1da177e2005-04-16 15:20:36 -0700314#endif /* _LINUX_NFSD_XDR3_H */