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 unsigned int access; 29 }; 30 31 struct nfsd3_readargs { 32 struct svc_fh fh; 33 __u64 offset; 34 __u32 count; 35 int vlen; 36 }; 37 38 struct nfsd3_writeargs { 39 svc_fh fh; 40 __u64 offset; 41 __u32 count; 42 int stable; 43 __u32 len; 44 struct kvec first; 45 }; 46 47 struct nfsd3_createargs { 48 struct svc_fh fh; 49 char * name; 50 unsigned int len; 51 int createmode; 52 struct iattr attrs; 53 __be32 * verf; 54 }; 55 56 struct nfsd3_mknodargs { 57 struct svc_fh fh; 58 char * name; 59 unsigned int len; 60 __u32 ftype; 61 __u32 major, minor; 62 struct iattr attrs; 63 }; 64 65 struct nfsd3_renameargs { 66 struct svc_fh ffh; 67 char * fname; 68 unsigned int flen; 69 struct svc_fh tfh; 70 char * tname; 71 unsigned int tlen; 72 }; 73 74 struct nfsd3_readlinkargs { 75 struct svc_fh fh; 76 char * buffer; 77 }; 78 79 struct nfsd3_linkargs { 80 struct svc_fh ffh; 81 struct svc_fh tfh; 82 char * tname; 83 unsigned int tlen; 84 }; 85 86 struct nfsd3_symlinkargs { 87 struct svc_fh ffh; 88 char * fname; 89 unsigned int flen; 90 char * tname; 91 unsigned int tlen; 92 struct iattr attrs; 93 struct kvec first; 94 }; 95 96 struct nfsd3_readdirargs { 97 struct svc_fh fh; 98 __u64 cookie; 99 __u32 dircount; 100 __u32 count; 101 __be32 * verf; 102 __be32 * buffer; 103 }; 104 105 struct nfsd3_commitargs { 106 struct svc_fh fh; 107 __u64 offset; 108 __u32 count; 109 }; 110 111 struct nfsd3_getaclargs { 112 struct svc_fh fh; 113 int mask; 114 }; 115 116 struct posix_acl; 117 struct nfsd3_setaclargs { 118 struct svc_fh fh; 119 int mask; 120 struct posix_acl *acl_access; 121 struct posix_acl *acl_default; 122 }; 123 124 struct nfsd3_attrstat { 125 __be32 status; 126 struct svc_fh fh; 127 struct kstat stat; 128 }; 129 130 /* LOOKUP, CREATE, MKDIR, SYMLINK, MKNOD */ 131 struct nfsd3_diropres { 132 __be32 status; 133 struct svc_fh dirfh; 134 struct svc_fh fh; 135 }; 136 137 struct nfsd3_accessres { 138 __be32 status; 139 struct svc_fh fh; 140 __u32 access; 141 struct kstat stat; 142 }; 143 144 struct nfsd3_readlinkres { 145 __be32 status; 146 struct svc_fh fh; 147 __u32 len; 148 }; 149 150 struct nfsd3_readres { 151 __be32 status; 152 struct svc_fh fh; 153 unsigned long count; 154 __u32 eof; 155 }; 156 157 struct nfsd3_writeres { 158 __be32 status; 159 struct svc_fh fh; 160 unsigned long count; 161 int committed; 162 __be32 verf[2]; 163 }; 164 165 struct nfsd3_renameres { 166 __be32 status; 167 struct svc_fh ffh; 168 struct svc_fh tfh; 169 }; 170 171 struct nfsd3_linkres { 172 __be32 status; 173 struct svc_fh tfh; 174 struct svc_fh fh; 175 }; 176 177 struct nfsd3_readdirres { 178 __be32 status; 179 struct svc_fh fh; 180 /* Just to save kmalloc on every readdirplus entry (svc_fh is a 181 * little large for the stack): */ 182 struct svc_fh scratch; 183 int count; 184 __be32 verf[2]; 185 186 struct readdir_cd common; 187 __be32 * buffer; 188 int buflen; 189 __be32 * offset; 190 __be32 * offset1; 191 struct svc_rqst * rqstp; 192 193 }; 194 195 struct nfsd3_fsstatres { 196 __be32 status; 197 struct kstatfs stats; 198 __u32 invarsec; 199 }; 200 201 struct nfsd3_fsinfores { 202 __be32 status; 203 __u32 f_rtmax; 204 __u32 f_rtpref; 205 __u32 f_rtmult; 206 __u32 f_wtmax; 207 __u32 f_wtpref; 208 __u32 f_wtmult; 209 __u32 f_dtpref; 210 __u64 f_maxfilesize; 211 __u32 f_properties; 212 }; 213 214 struct nfsd3_pathconfres { 215 __be32 status; 216 __u32 p_link_max; 217 __u32 p_name_max; 218 __u32 p_no_trunc; 219 __u32 p_chown_restricted; 220 __u32 p_case_insensitive; 221 __u32 p_case_preserving; 222 }; 223 224 struct nfsd3_commitres { 225 __be32 status; 226 struct svc_fh fh; 227 __be32 verf[2]; 228 }; 229 230 struct nfsd3_getaclres { 231 __be32 status; 232 struct svc_fh fh; 233 int mask; 234 struct posix_acl *acl_access; 235 struct posix_acl *acl_default; 236 struct kstat stat; 237 }; 238 239 /* dummy type for release */ 240 struct nfsd3_fhandle_pair { 241 __u32 dummy; 242 struct svc_fh fh1; 243 struct svc_fh fh2; 244 }; 245 246 /* 247 * Storage requirements for XDR arguments and results. 248 */ 249 union nfsd3_xdrstore { 250 struct nfsd3_sattrargs sattrargs; 251 struct nfsd3_diropargs diropargs; 252 struct nfsd3_readargs readargs; 253 struct nfsd3_writeargs writeargs; 254 struct nfsd3_createargs createargs; 255 struct nfsd3_renameargs renameargs; 256 struct nfsd3_linkargs linkargs; 257 struct nfsd3_symlinkargs symlinkargs; 258 struct nfsd3_readdirargs readdirargs; 259 struct nfsd3_diropres diropres; 260 struct nfsd3_accessres accessres; 261 struct nfsd3_readlinkres readlinkres; 262 struct nfsd3_readres readres; 263 struct nfsd3_writeres writeres; 264 struct nfsd3_renameres renameres; 265 struct nfsd3_linkres linkres; 266 struct nfsd3_readdirres readdirres; 267 struct nfsd3_fsstatres fsstatres; 268 struct nfsd3_fsinfores fsinfores; 269 struct nfsd3_pathconfres pathconfres; 270 struct nfsd3_commitres commitres; 271 struct nfsd3_getaclres getaclres; 272 }; 273 274 #define NFS3_SVC_XDRSIZE sizeof(union nfsd3_xdrstore) 275 276 int nfs3svc_decode_fhandle(struct svc_rqst *, __be32 *); 277 int nfs3svc_decode_sattrargs(struct svc_rqst *, __be32 *); 278 int nfs3svc_decode_diropargs(struct svc_rqst *, __be32 *); 279 int nfs3svc_decode_accessargs(struct svc_rqst *, __be32 *); 280 int nfs3svc_decode_readargs(struct svc_rqst *, __be32 *); 281 int nfs3svc_decode_writeargs(struct svc_rqst *, __be32 *); 282 int nfs3svc_decode_createargs(struct svc_rqst *, __be32 *); 283 int nfs3svc_decode_mkdirargs(struct svc_rqst *, __be32 *); 284 int nfs3svc_decode_mknodargs(struct svc_rqst *, __be32 *); 285 int nfs3svc_decode_renameargs(struct svc_rqst *, __be32 *); 286 int nfs3svc_decode_readlinkargs(struct svc_rqst *, __be32 *); 287 int nfs3svc_decode_linkargs(struct svc_rqst *, __be32 *); 288 int nfs3svc_decode_symlinkargs(struct svc_rqst *, __be32 *); 289 int nfs3svc_decode_readdirargs(struct svc_rqst *, __be32 *); 290 int nfs3svc_decode_readdirplusargs(struct svc_rqst *, __be32 *); 291 int nfs3svc_decode_commitargs(struct svc_rqst *, __be32 *); 292 int nfs3svc_encode_attrstat(struct svc_rqst *, __be32 *); 293 int nfs3svc_encode_wccstat(struct svc_rqst *, __be32 *); 294 int nfs3svc_encode_diropres(struct svc_rqst *, __be32 *); 295 int nfs3svc_encode_accessres(struct svc_rqst *, __be32 *); 296 int nfs3svc_encode_readlinkres(struct svc_rqst *, __be32 *); 297 int nfs3svc_encode_readres(struct svc_rqst *, __be32 *); 298 int nfs3svc_encode_writeres(struct svc_rqst *, __be32 *); 299 int nfs3svc_encode_createres(struct svc_rqst *, __be32 *); 300 int nfs3svc_encode_renameres(struct svc_rqst *, __be32 *); 301 int nfs3svc_encode_linkres(struct svc_rqst *, __be32 *); 302 int nfs3svc_encode_readdirres(struct svc_rqst *, __be32 *); 303 int nfs3svc_encode_fsstatres(struct svc_rqst *, __be32 *); 304 int nfs3svc_encode_fsinfores(struct svc_rqst *, __be32 *); 305 int nfs3svc_encode_pathconfres(struct svc_rqst *, __be32 *); 306 int nfs3svc_encode_commitres(struct svc_rqst *, __be32 *); 307 308 void nfs3svc_release_fhandle(struct svc_rqst *); 309 void nfs3svc_release_fhandle2(struct svc_rqst *); 310 int nfs3svc_encode_entry(void *, const char *name, 311 int namlen, loff_t offset, u64 ino, 312 unsigned int); 313 int nfs3svc_encode_entry_plus(void *, const char *name, 314 int namlen, loff_t offset, u64 ino, 315 unsigned int); 316 /* Helper functions for NFSv3 ACL code */ 317 __be32 *nfs3svc_encode_post_op_attr(struct svc_rqst *rqstp, __be32 *p, 318 struct svc_fh *fhp); 319 __be32 *nfs3svc_decode_fh(__be32 *p, struct svc_fh *fhp); 320 321 322 #endif /* _LINUX_NFSD_XDR3_H */ 323