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 kvec first; 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 }; 141 142 struct nfsd3_readres { 143 __be32 status; 144 struct svc_fh fh; 145 unsigned long count; 146 __u32 eof; 147 }; 148 149 struct nfsd3_writeres { 150 __be32 status; 151 struct svc_fh fh; 152 unsigned long count; 153 int committed; 154 __be32 verf[2]; 155 }; 156 157 struct nfsd3_renameres { 158 __be32 status; 159 struct svc_fh ffh; 160 struct svc_fh tfh; 161 }; 162 163 struct nfsd3_linkres { 164 __be32 status; 165 struct svc_fh tfh; 166 struct svc_fh fh; 167 }; 168 169 struct nfsd3_readdirres { 170 __be32 status; 171 struct svc_fh fh; 172 /* Just to save kmalloc on every readdirplus entry (svc_fh is a 173 * little large for the stack): */ 174 struct svc_fh scratch; 175 int count; 176 __be32 verf[2]; 177 178 struct readdir_cd common; 179 __be32 * buffer; 180 int buflen; 181 __be32 * offset; 182 __be32 * offset1; 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 int nfs3svc_decode_fhandleargs(struct svc_rqst *, __be32 *); 269 int nfs3svc_decode_sattrargs(struct svc_rqst *, __be32 *); 270 int nfs3svc_decode_diropargs(struct svc_rqst *, __be32 *); 271 int nfs3svc_decode_accessargs(struct svc_rqst *, __be32 *); 272 int nfs3svc_decode_readargs(struct svc_rqst *, __be32 *); 273 int nfs3svc_decode_writeargs(struct svc_rqst *, __be32 *); 274 int nfs3svc_decode_createargs(struct svc_rqst *, __be32 *); 275 int nfs3svc_decode_mkdirargs(struct svc_rqst *, __be32 *); 276 int nfs3svc_decode_mknodargs(struct svc_rqst *, __be32 *); 277 int nfs3svc_decode_renameargs(struct svc_rqst *, __be32 *); 278 int nfs3svc_decode_linkargs(struct svc_rqst *, __be32 *); 279 int nfs3svc_decode_symlinkargs(struct svc_rqst *, __be32 *); 280 int nfs3svc_decode_readdirargs(struct svc_rqst *, __be32 *); 281 int nfs3svc_decode_readdirplusargs(struct svc_rqst *, __be32 *); 282 int nfs3svc_decode_commitargs(struct svc_rqst *, __be32 *); 283 int nfs3svc_encode_attrstat(struct svc_rqst *, __be32 *); 284 int nfs3svc_encode_wccstat(struct svc_rqst *, __be32 *); 285 int nfs3svc_encode_diropres(struct svc_rqst *, __be32 *); 286 int nfs3svc_encode_accessres(struct svc_rqst *, __be32 *); 287 int nfs3svc_encode_readlinkres(struct svc_rqst *, __be32 *); 288 int nfs3svc_encode_readres(struct svc_rqst *, __be32 *); 289 int nfs3svc_encode_writeres(struct svc_rqst *, __be32 *); 290 int nfs3svc_encode_createres(struct svc_rqst *, __be32 *); 291 int nfs3svc_encode_renameres(struct svc_rqst *, __be32 *); 292 int nfs3svc_encode_linkres(struct svc_rqst *, __be32 *); 293 int nfs3svc_encode_readdirres(struct svc_rqst *, __be32 *); 294 int nfs3svc_encode_fsstatres(struct svc_rqst *, __be32 *); 295 int nfs3svc_encode_fsinfores(struct svc_rqst *, __be32 *); 296 int nfs3svc_encode_pathconfres(struct svc_rqst *, __be32 *); 297 int nfs3svc_encode_commitres(struct svc_rqst *, __be32 *); 298 299 void nfs3svc_release_fhandle(struct svc_rqst *); 300 void nfs3svc_release_fhandle2(struct svc_rqst *); 301 int nfs3svc_encode_entry(void *, const char *name, 302 int namlen, loff_t offset, u64 ino, 303 unsigned int); 304 int nfs3svc_encode_entry_plus(void *, const char *name, 305 int namlen, loff_t offset, u64 ino, 306 unsigned int); 307 /* Helper functions for NFSv3 ACL code */ 308 __be32 *nfs3svc_encode_post_op_attr(struct svc_rqst *rqstp, __be32 *p, 309 struct svc_fh *fhp); 310 bool svcxdr_decode_nfs_fh3(struct xdr_stream *xdr, struct svc_fh *fhp); 311 312 #endif /* _LINUX_NFSD_XDR3_H */ 313