1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * 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 11 #include "xdr.h" 12 13 struct nfsd3_sattrargs { 14 struct svc_fh fh; 15 struct iattr attrs; 16 int check_guard; 17 time64_t guardtime; 18 }; 19 20 struct nfsd3_diropargs { 21 struct svc_fh fh; 22 char * name; 23 unsigned int len; 24 }; 25 26 struct nfsd3_accessargs { 27 struct svc_fh fh; 28 __u32 access; 29 }; 30 31 struct nfsd3_readargs { 32 struct svc_fh fh; 33 __u64 offset; 34 __u32 count; 35 }; 36 37 struct nfsd3_writeargs { 38 svc_fh fh; 39 __u64 offset; 40 __u32 count; 41 int stable; 42 __u32 len; 43 struct xdr_buf payload; 44 }; 45 46 struct nfsd3_createargs { 47 struct svc_fh fh; 48 char * name; 49 unsigned int len; 50 int createmode; 51 struct iattr attrs; 52 __be32 * verf; 53 }; 54 55 struct nfsd3_mknodargs { 56 struct svc_fh fh; 57 char * name; 58 unsigned int len; 59 __u32 ftype; 60 __u32 major, minor; 61 struct iattr attrs; 62 }; 63 64 struct nfsd3_renameargs { 65 struct svc_fh ffh; 66 char * fname; 67 unsigned int flen; 68 struct svc_fh tfh; 69 char * tname; 70 unsigned int tlen; 71 }; 72 73 struct nfsd3_linkargs { 74 struct svc_fh ffh; 75 struct svc_fh tfh; 76 char * tname; 77 unsigned int tlen; 78 }; 79 80 struct nfsd3_symlinkargs { 81 struct svc_fh ffh; 82 char * fname; 83 unsigned int flen; 84 char * tname; 85 unsigned int tlen; 86 struct iattr attrs; 87 struct kvec first; 88 }; 89 90 struct nfsd3_readdirargs { 91 struct svc_fh fh; 92 __u64 cookie; 93 __u32 count; 94 __be32 * verf; 95 }; 96 97 struct nfsd3_commitargs { 98 struct svc_fh fh; 99 __u64 offset; 100 __u32 count; 101 }; 102 103 struct nfsd3_getaclargs { 104 struct svc_fh fh; 105 __u32 mask; 106 }; 107 108 struct posix_acl; 109 struct nfsd3_setaclargs { 110 struct svc_fh fh; 111 __u32 mask; 112 struct posix_acl *acl_access; 113 struct posix_acl *acl_default; 114 }; 115 116 struct nfsd3_attrstat { 117 __be32 status; 118 struct svc_fh fh; 119 struct kstat stat; 120 }; 121 122 /* LOOKUP, CREATE, MKDIR, SYMLINK, MKNOD */ 123 struct nfsd3_diropres { 124 __be32 status; 125 struct svc_fh dirfh; 126 struct svc_fh fh; 127 }; 128 129 struct nfsd3_accessres { 130 __be32 status; 131 struct svc_fh fh; 132 __u32 access; 133 struct kstat stat; 134 }; 135 136 struct nfsd3_readlinkres { 137 __be32 status; 138 struct svc_fh fh; 139 __u32 len; 140 struct page **pages; 141 }; 142 143 struct nfsd3_readres { 144 __be32 status; 145 struct svc_fh fh; 146 unsigned long count; 147 __u32 eof; 148 struct page **pages; 149 }; 150 151 struct nfsd3_writeres { 152 __be32 status; 153 struct svc_fh fh; 154 unsigned long count; 155 int committed; 156 __be32 verf[2]; 157 }; 158 159 struct nfsd3_renameres { 160 __be32 status; 161 struct svc_fh ffh; 162 struct svc_fh tfh; 163 }; 164 165 struct nfsd3_linkres { 166 __be32 status; 167 struct svc_fh tfh; 168 struct svc_fh fh; 169 }; 170 171 struct nfsd3_readdirres { 172 /* Components of the reply */ 173 __be32 status; 174 struct svc_fh fh; 175 __be32 verf[2]; 176 177 /* Used to encode the reply's entry list */ 178 struct xdr_stream xdr; 179 struct xdr_buf dirlist; 180 struct svc_fh scratch; 181 struct readdir_cd common; 182 unsigned int cookie_offset; 183 struct svc_rqst * rqstp; 184 185 }; 186 187 struct nfsd3_fsstatres { 188 __be32 status; 189 struct kstatfs stats; 190 __u32 invarsec; 191 }; 192 193 struct nfsd3_fsinfores { 194 __be32 status; 195 __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 }; 205 206 struct nfsd3_pathconfres { 207 __be32 status; 208 __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 }; 215 216 struct nfsd3_commitres { 217 __be32 status; 218 struct svc_fh fh; 219 __be32 verf[2]; 220 }; 221 222 struct nfsd3_getaclres { 223 __be32 status; 224 struct svc_fh fh; 225 int mask; 226 struct posix_acl *acl_access; 227 struct posix_acl *acl_default; 228 struct kstat stat; 229 }; 230 231 /* dummy type for release */ 232 struct 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 */ 241 union 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; 263 struct nfsd3_getaclres getaclres; 264 }; 265 266 #define NFS3_SVC_XDRSIZE sizeof(union nfsd3_xdrstore) 267 268 bool nfs3svc_decode_fhandleargs(struct svc_rqst *rqstp, struct xdr_stream *xdr); 269 bool nfs3svc_decode_sattrargs(struct svc_rqst *rqstp, struct xdr_stream *xdr); 270 bool nfs3svc_decode_diropargs(struct svc_rqst *rqstp, struct xdr_stream *xdr); 271 bool nfs3svc_decode_accessargs(struct svc_rqst *rqstp, struct xdr_stream *xdr); 272 bool nfs3svc_decode_readargs(struct svc_rqst *rqstp, struct xdr_stream *xdr); 273 bool nfs3svc_decode_writeargs(struct svc_rqst *rqstp, struct xdr_stream *xdr); 274 bool nfs3svc_decode_createargs(struct svc_rqst *rqstp, struct xdr_stream *xdr); 275 bool nfs3svc_decode_mkdirargs(struct svc_rqst *rqstp, struct xdr_stream *xdr); 276 bool nfs3svc_decode_mknodargs(struct svc_rqst *rqstp, struct xdr_stream *xdr); 277 bool nfs3svc_decode_renameargs(struct svc_rqst *rqstp, struct xdr_stream *xdr); 278 bool nfs3svc_decode_linkargs(struct svc_rqst *rqstp, struct xdr_stream *xdr); 279 bool nfs3svc_decode_symlinkargs(struct svc_rqst *rqstp, struct xdr_stream *xdr); 280 bool nfs3svc_decode_readdirargs(struct svc_rqst *rqstp, struct xdr_stream *xdr); 281 bool nfs3svc_decode_readdirplusargs(struct svc_rqst *rqstp, struct xdr_stream *xdr); 282 bool nfs3svc_decode_commitargs(struct svc_rqst *rqstp, struct xdr_stream *xdr); 283 284 bool nfs3svc_encode_getattrres(struct svc_rqst *rqstp, struct xdr_stream *xdr); 285 bool nfs3svc_encode_wccstat(struct svc_rqst *rqstp, struct xdr_stream *xdr); 286 bool nfs3svc_encode_lookupres(struct svc_rqst *rqstp, struct xdr_stream *xdr); 287 bool nfs3svc_encode_accessres(struct svc_rqst *rqstp, struct xdr_stream *xdr); 288 bool nfs3svc_encode_readlinkres(struct svc_rqst *rqstp, struct xdr_stream *xdr); 289 bool nfs3svc_encode_readres(struct svc_rqst *rqstp, struct xdr_stream *xdr); 290 bool nfs3svc_encode_writeres(struct svc_rqst *rqstp, struct xdr_stream *xdr); 291 bool nfs3svc_encode_createres(struct svc_rqst *rqstp, struct xdr_stream *xdr); 292 bool nfs3svc_encode_renameres(struct svc_rqst *rqstp, struct xdr_stream *xdr); 293 bool nfs3svc_encode_linkres(struct svc_rqst *rqstp, struct xdr_stream *xdr); 294 bool nfs3svc_encode_readdirres(struct svc_rqst *rqstp, struct xdr_stream *xdr); 295 bool nfs3svc_encode_fsstatres(struct svc_rqst *rqstp, struct xdr_stream *xdr); 296 bool nfs3svc_encode_fsinfores(struct svc_rqst *rqstp, struct xdr_stream *xdr); 297 bool nfs3svc_encode_pathconfres(struct svc_rqst *rqstp, struct xdr_stream *xdr); 298 bool nfs3svc_encode_commitres(struct svc_rqst *rqstp, struct xdr_stream *xdr); 299 300 void nfs3svc_release_fhandle(struct svc_rqst *); 301 void nfs3svc_release_fhandle2(struct svc_rqst *); 302 303 void nfs3svc_encode_cookie3(struct nfsd3_readdirres *resp, u64 offset); 304 int nfs3svc_encode_entry3(void *data, const char *name, int namlen, 305 loff_t offset, u64 ino, unsigned int d_type); 306 int nfs3svc_encode_entryplus3(void *data, const char *name, int namlen, 307 loff_t offset, u64 ino, unsigned int d_type); 308 /* Helper functions for NFSv3 ACL code */ 309 bool svcxdr_decode_nfs_fh3(struct xdr_stream *xdr, struct svc_fh *fhp); 310 bool svcxdr_encode_nfsstat3(struct xdr_stream *xdr, __be32 status); 311 bool svcxdr_encode_post_op_attr(struct svc_rqst *rqstp, struct xdr_stream *xdr, 312 const struct svc_fh *fhp); 313 314 #endif /* _LINUX_NFSD_XDR3_H */ 315