1 /* 2 * fs/nfs/nfs4xdr.c 3 * 4 * Client-side XDR for NFSv4. 5 * 6 * Copyright (c) 2002 The Regents of the University of Michigan. 7 * All rights reserved. 8 * 9 * Kendrick Smith <kmsmith@umich.edu> 10 * Andy Adamson <andros@umich.edu> 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution. 21 * 3. Neither the name of the University nor the names of its 22 * contributors may be used to endorse or promote products derived 23 * from this software without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED 26 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 27 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 28 * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 32 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 33 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 34 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 35 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 36 */ 37 38 #include <linux/param.h> 39 #include <linux/time.h> 40 #include <linux/mm.h> 41 #include <linux/slab.h> 42 #include <linux/utsname.h> 43 #include <linux/errno.h> 44 #include <linux/string.h> 45 #include <linux/in.h> 46 #include <linux/pagemap.h> 47 #include <linux/proc_fs.h> 48 #include <linux/kdev_t.h> 49 #include <linux/sunrpc/clnt.h> 50 #include <linux/nfs.h> 51 #include <linux/nfs4.h> 52 #include <linux/nfs_fs.h> 53 #include <linux/nfs_idmap.h> 54 #include "nfs4_fs.h" 55 56 #define NFSDBG_FACILITY NFSDBG_XDR 57 58 /* Mapping from NFS error code to "errno" error code. */ 59 #define errno_NFSERR_IO EIO 60 61 static int nfs_stat_to_errno(int); 62 63 /* NFSv4 COMPOUND tags are only wanted for debugging purposes */ 64 #ifdef DEBUG 65 #define NFS4_MAXTAGLEN 20 66 #else 67 #define NFS4_MAXTAGLEN 0 68 #endif 69 70 /* lock,open owner id: 71 * we currently use size 1 (u32) out of (NFS4_OPAQUE_LIMIT >> 2) 72 */ 73 #define owner_id_maxsz (1 + 1) 74 #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) 75 #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) 76 #define op_encode_hdr_maxsz (1) 77 #define op_decode_hdr_maxsz (2) 78 #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \ 79 (NFS4_FHSIZE >> 2)) 80 #define decode_putfh_maxsz (op_decode_hdr_maxsz) 81 #define encode_putrootfh_maxsz (op_encode_hdr_maxsz) 82 #define decode_putrootfh_maxsz (op_decode_hdr_maxsz) 83 #define encode_getfh_maxsz (op_encode_hdr_maxsz) 84 #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \ 85 ((3+NFS4_FHSIZE) >> 2)) 86 #define nfs4_fattr_bitmap_maxsz 3 87 #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) 88 #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2)) 89 #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2)) 90 /* This is based on getfattr, which uses the most attributes: */ 91 #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \ 92 3 + 3 + 3 + 2 * nfs4_name_maxsz)) 93 #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \ 94 nfs4_fattr_value_maxsz) 95 #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz) 96 #define encode_savefh_maxsz (op_encode_hdr_maxsz) 97 #define decode_savefh_maxsz (op_decode_hdr_maxsz) 98 #define encode_restorefh_maxsz (op_encode_hdr_maxsz) 99 #define decode_restorefh_maxsz (op_decode_hdr_maxsz) 100 #define encode_fsinfo_maxsz (op_encode_hdr_maxsz + 2) 101 #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + 11) 102 #define encode_renew_maxsz (op_encode_hdr_maxsz + 3) 103 #define decode_renew_maxsz (op_decode_hdr_maxsz) 104 #define encode_setclientid_maxsz \ 105 (op_encode_hdr_maxsz + \ 106 4 /*server->ip_addr*/ + \ 107 1 /*Netid*/ + \ 108 6 /*uaddr*/ + \ 109 6 + (NFS4_VERIFIER_SIZE >> 2)) 110 #define decode_setclientid_maxsz \ 111 (op_decode_hdr_maxsz + \ 112 2 + \ 113 1024) /* large value for CLID_INUSE */ 114 #define encode_setclientid_confirm_maxsz \ 115 (op_encode_hdr_maxsz + \ 116 3 + (NFS4_VERIFIER_SIZE >> 2)) 117 #define decode_setclientid_confirm_maxsz \ 118 (op_decode_hdr_maxsz) 119 #define encode_lookup_maxsz (op_encode_hdr_maxsz + \ 120 1 + ((3 + NFS4_FHSIZE) >> 2)) 121 #define encode_remove_maxsz (op_encode_hdr_maxsz + \ 122 nfs4_name_maxsz) 123 #define encode_rename_maxsz (op_encode_hdr_maxsz + \ 124 2 * nfs4_name_maxsz) 125 #define decode_rename_maxsz (op_decode_hdr_maxsz + 5 + 5) 126 #define encode_link_maxsz (op_encode_hdr_maxsz + \ 127 nfs4_name_maxsz) 128 #define decode_link_maxsz (op_decode_hdr_maxsz + 5) 129 #define encode_symlink_maxsz (op_encode_hdr_maxsz + \ 130 1 + nfs4_name_maxsz + \ 131 nfs4_path_maxsz + \ 132 nfs4_fattr_maxsz) 133 #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8) 134 #define encode_create_maxsz (op_encode_hdr_maxsz + \ 135 2 + nfs4_name_maxsz + \ 136 nfs4_fattr_maxsz) 137 #define decode_create_maxsz (op_decode_hdr_maxsz + 8) 138 #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4) 139 #define decode_delegreturn_maxsz (op_decode_hdr_maxsz) 140 #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ 141 #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ 142 #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ 143 encode_putfh_maxsz + \ 144 op_encode_hdr_maxsz + 7) 145 #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ 146 decode_putfh_maxsz + \ 147 op_decode_hdr_maxsz + 2) 148 #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ 149 encode_putfh_maxsz + \ 150 op_encode_hdr_maxsz) 151 #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ 152 decode_putfh_maxsz + \ 153 op_decode_hdr_maxsz) 154 #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ 155 encode_putfh_maxsz + \ 156 op_encode_hdr_maxsz + 9) 157 #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ 158 decode_putfh_maxsz + \ 159 op_decode_hdr_maxsz + 2) 160 #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ 161 encode_putfh_maxsz + \ 162 op_encode_hdr_maxsz + 8 + \ 163 encode_getattr_maxsz) 164 #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ 165 decode_putfh_maxsz + \ 166 op_decode_hdr_maxsz + 4 + \ 167 decode_getattr_maxsz) 168 #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ 169 encode_putfh_maxsz + \ 170 op_encode_hdr_maxsz + 3 + \ 171 encode_getattr_maxsz) 172 #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ 173 decode_putfh_maxsz + \ 174 op_decode_hdr_maxsz + 2 + \ 175 decode_getattr_maxsz) 176 #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ 177 encode_putfh_maxsz + \ 178 op_encode_hdr_maxsz + \ 179 13 + 3 + 2 + 64 + \ 180 encode_getattr_maxsz + \ 181 encode_getfh_maxsz) 182 #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ 183 decode_putfh_maxsz + \ 184 op_decode_hdr_maxsz + 4 + 5 + 2 + 3 + \ 185 decode_getattr_maxsz + \ 186 decode_getfh_maxsz) 187 #define NFS4_enc_open_confirm_sz \ 188 (compound_encode_hdr_maxsz + \ 189 encode_putfh_maxsz + \ 190 op_encode_hdr_maxsz + 5) 191 #define NFS4_dec_open_confirm_sz (compound_decode_hdr_maxsz + \ 192 decode_putfh_maxsz + \ 193 op_decode_hdr_maxsz + 4) 194 #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ 195 encode_putfh_maxsz + \ 196 op_encode_hdr_maxsz + \ 197 11) 198 #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ 199 decode_putfh_maxsz + \ 200 op_decode_hdr_maxsz + \ 201 4 + 5 + 2 + 3) 202 #define NFS4_enc_open_downgrade_sz \ 203 (compound_encode_hdr_maxsz + \ 204 encode_putfh_maxsz + \ 205 op_encode_hdr_maxsz + 7 + \ 206 encode_getattr_maxsz) 207 #define NFS4_dec_open_downgrade_sz \ 208 (compound_decode_hdr_maxsz + \ 209 decode_putfh_maxsz + \ 210 op_decode_hdr_maxsz + 4 + \ 211 decode_getattr_maxsz) 212 #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ 213 encode_putfh_maxsz + \ 214 op_encode_hdr_maxsz + 5 + \ 215 encode_getattr_maxsz) 216 #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ 217 decode_putfh_maxsz + \ 218 op_decode_hdr_maxsz + 4 + \ 219 decode_getattr_maxsz) 220 #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ 221 encode_putfh_maxsz + \ 222 op_encode_hdr_maxsz + 4 + \ 223 nfs4_fattr_maxsz + \ 224 encode_getattr_maxsz) 225 #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ 226 decode_putfh_maxsz + \ 227 op_decode_hdr_maxsz + 3) 228 #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ 229 encode_putfh_maxsz + \ 230 encode_fsinfo_maxsz) 231 #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ 232 decode_putfh_maxsz + \ 233 decode_fsinfo_maxsz) 234 #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ 235 encode_renew_maxsz) 236 #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ 237 decode_renew_maxsz) 238 #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ 239 encode_setclientid_maxsz) 240 #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ 241 decode_setclientid_maxsz) 242 #define NFS4_enc_setclientid_confirm_sz \ 243 (compound_encode_hdr_maxsz + \ 244 encode_setclientid_confirm_maxsz + \ 245 encode_putrootfh_maxsz + \ 246 encode_fsinfo_maxsz) 247 #define NFS4_dec_setclientid_confirm_sz \ 248 (compound_decode_hdr_maxsz + \ 249 decode_setclientid_confirm_maxsz + \ 250 decode_putrootfh_maxsz + \ 251 decode_fsinfo_maxsz) 252 #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ 253 encode_putfh_maxsz + \ 254 encode_getattr_maxsz + \ 255 op_encode_hdr_maxsz + \ 256 1 + 1 + 2 + 2 + \ 257 1 + 4 + 1 + 2 + \ 258 owner_id_maxsz) 259 #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ 260 decode_putfh_maxsz + \ 261 decode_getattr_maxsz + \ 262 op_decode_hdr_maxsz + \ 263 2 + 2 + 1 + 2 + \ 264 owner_id_maxsz) 265 #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ 266 encode_putfh_maxsz + \ 267 encode_getattr_maxsz + \ 268 op_encode_hdr_maxsz + \ 269 1 + 2 + 2 + 2 + \ 270 owner_id_maxsz) 271 #define NFS4_dec_lockt_sz (NFS4_dec_lock_sz) 272 #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ 273 encode_putfh_maxsz + \ 274 encode_getattr_maxsz + \ 275 op_encode_hdr_maxsz + \ 276 1 + 1 + 4 + 2 + 2) 277 #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ 278 decode_putfh_maxsz + \ 279 decode_getattr_maxsz + \ 280 op_decode_hdr_maxsz + 4) 281 #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ 282 encode_putfh_maxsz + \ 283 op_encode_hdr_maxsz + 1) 284 #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ 285 decode_putfh_maxsz + \ 286 op_decode_hdr_maxsz + 2) 287 #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ 288 encode_putfh_maxsz + \ 289 encode_getattr_maxsz) 290 #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ 291 decode_putfh_maxsz + \ 292 decode_getattr_maxsz) 293 #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ 294 encode_putfh_maxsz + \ 295 encode_lookup_maxsz + \ 296 encode_getattr_maxsz + \ 297 encode_getfh_maxsz) 298 #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ 299 decode_putfh_maxsz + \ 300 op_decode_hdr_maxsz + \ 301 decode_getattr_maxsz + \ 302 decode_getfh_maxsz) 303 #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ 304 encode_putrootfh_maxsz + \ 305 encode_getattr_maxsz + \ 306 encode_getfh_maxsz) 307 #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ 308 decode_putrootfh_maxsz + \ 309 decode_getattr_maxsz + \ 310 decode_getfh_maxsz) 311 #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ 312 encode_putfh_maxsz + \ 313 encode_remove_maxsz + \ 314 encode_getattr_maxsz) 315 #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ 316 decode_putfh_maxsz + \ 317 op_decode_hdr_maxsz + 5 + \ 318 decode_getattr_maxsz) 319 #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ 320 encode_putfh_maxsz + \ 321 encode_savefh_maxsz + \ 322 encode_putfh_maxsz + \ 323 encode_rename_maxsz + \ 324 encode_getattr_maxsz + \ 325 encode_restorefh_maxsz + \ 326 encode_getattr_maxsz) 327 #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ 328 decode_putfh_maxsz + \ 329 decode_savefh_maxsz + \ 330 decode_putfh_maxsz + \ 331 decode_rename_maxsz + \ 332 decode_getattr_maxsz + \ 333 decode_restorefh_maxsz + \ 334 decode_getattr_maxsz) 335 #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ 336 encode_putfh_maxsz + \ 337 encode_savefh_maxsz + \ 338 encode_putfh_maxsz + \ 339 encode_link_maxsz + \ 340 decode_getattr_maxsz + \ 341 encode_restorefh_maxsz + \ 342 decode_getattr_maxsz) 343 #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ 344 decode_putfh_maxsz + \ 345 decode_savefh_maxsz + \ 346 decode_putfh_maxsz + \ 347 decode_link_maxsz + \ 348 decode_getattr_maxsz + \ 349 decode_restorefh_maxsz + \ 350 decode_getattr_maxsz) 351 #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ 352 encode_putfh_maxsz + \ 353 encode_symlink_maxsz + \ 354 encode_getattr_maxsz + \ 355 encode_getfh_maxsz) 356 #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ 357 decode_putfh_maxsz + \ 358 decode_symlink_maxsz + \ 359 decode_getattr_maxsz + \ 360 decode_getfh_maxsz) 361 #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ 362 encode_putfh_maxsz + \ 363 encode_savefh_maxsz + \ 364 encode_create_maxsz + \ 365 encode_getfh_maxsz + \ 366 encode_getattr_maxsz + \ 367 encode_restorefh_maxsz + \ 368 encode_getattr_maxsz) 369 #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ 370 decode_putfh_maxsz + \ 371 decode_savefh_maxsz + \ 372 decode_create_maxsz + \ 373 decode_getfh_maxsz + \ 374 decode_getattr_maxsz + \ 375 decode_restorefh_maxsz + \ 376 decode_getattr_maxsz) 377 #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ 378 encode_putfh_maxsz + \ 379 encode_getattr_maxsz) 380 #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ 381 decode_putfh_maxsz + \ 382 decode_getattr_maxsz) 383 #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ 384 encode_putfh_maxsz + \ 385 encode_getattr_maxsz) 386 #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ 387 decode_putfh_maxsz + \ 388 op_decode_hdr_maxsz + 12) 389 #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ 390 encode_getattr_maxsz) 391 #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ 392 decode_getattr_maxsz) 393 #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ 394 encode_putfh_maxsz + \ 395 encode_delegreturn_maxsz + \ 396 encode_getattr_maxsz) 397 #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ 398 decode_delegreturn_maxsz + \ 399 decode_getattr_maxsz) 400 #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ 401 encode_putfh_maxsz + \ 402 encode_getattr_maxsz) 403 #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ 404 decode_putfh_maxsz + \ 405 op_decode_hdr_maxsz + \ 406 nfs4_fattr_bitmap_maxsz + 1) 407 #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ 408 encode_putfh_maxsz + \ 409 op_encode_hdr_maxsz + 4 + \ 410 nfs4_fattr_bitmap_maxsz + 1) 411 #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ 412 decode_putfh_maxsz + \ 413 op_decode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) 414 415 static struct { 416 unsigned int mode; 417 unsigned int nfs2type; 418 } nfs_type2fmt[] = { 419 { 0, NFNON }, 420 { S_IFREG, NFREG }, 421 { S_IFDIR, NFDIR }, 422 { S_IFBLK, NFBLK }, 423 { S_IFCHR, NFCHR }, 424 { S_IFLNK, NFLNK }, 425 { S_IFSOCK, NFSOCK }, 426 { S_IFIFO, NFFIFO }, 427 { 0, NFNON }, 428 { 0, NFNON }, 429 }; 430 431 struct compound_hdr { 432 int32_t status; 433 uint32_t nops; 434 uint32_t taglen; 435 char * tag; 436 }; 437 438 /* 439 * START OF "GENERIC" ENCODE ROUTINES. 440 * These may look a little ugly since they are imported from a "generic" 441 * set of XDR encode/decode routines which are intended to be shared by 442 * all of our NFSv4 implementations (OpenBSD, MacOS X...). 443 * 444 * If the pain of reading these is too great, it should be a straightforward 445 * task to translate them into Linux-specific versions which are more 446 * consistent with the style used in NFSv2/v3... 447 */ 448 #define WRITE32(n) *p++ = htonl(n) 449 #define WRITE64(n) do { \ 450 *p++ = htonl((uint32_t)((n) >> 32)); \ 451 *p++ = htonl((uint32_t)(n)); \ 452 } while (0) 453 #define WRITEMEM(ptr,nbytes) do { \ 454 p = xdr_encode_opaque_fixed(p, ptr, nbytes); \ 455 } while (0) 456 457 #define RESERVE_SPACE(nbytes) do { \ 458 p = xdr_reserve_space(xdr, nbytes); \ 459 if (!p) printk("RESERVE_SPACE(%d) failed in function %s\n", (int) (nbytes), __FUNCTION__); \ 460 BUG_ON(!p); \ 461 } while (0) 462 463 static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) 464 { 465 uint32_t *p; 466 467 p = xdr_reserve_space(xdr, 4 + len); 468 BUG_ON(p == NULL); 469 xdr_encode_opaque(p, str, len); 470 } 471 472 static int encode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 473 { 474 uint32_t *p; 475 476 dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag); 477 BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); 478 RESERVE_SPACE(12+(XDR_QUADLEN(hdr->taglen)<<2)); 479 WRITE32(hdr->taglen); 480 WRITEMEM(hdr->tag, hdr->taglen); 481 WRITE32(NFS4_MINOR_VERSION); 482 WRITE32(hdr->nops); 483 return 0; 484 } 485 486 static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) 487 { 488 uint32_t *p; 489 490 p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE); 491 BUG_ON(p == NULL); 492 xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE); 493 } 494 495 static int encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) 496 { 497 char owner_name[IDMAP_NAMESZ]; 498 char owner_group[IDMAP_NAMESZ]; 499 int owner_namelen = 0; 500 int owner_grouplen = 0; 501 uint32_t *p; 502 uint32_t *q; 503 int len; 504 uint32_t bmval0 = 0; 505 uint32_t bmval1 = 0; 506 int status; 507 508 /* 509 * We reserve enough space to write the entire attribute buffer at once. 510 * In the worst-case, this would be 511 * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) 512 * = 36 bytes, plus any contribution from variable-length fields 513 * such as owner/group. 514 */ 515 len = 16; 516 517 /* Sigh */ 518 if (iap->ia_valid & ATTR_SIZE) 519 len += 8; 520 if (iap->ia_valid & ATTR_MODE) 521 len += 4; 522 if (iap->ia_valid & ATTR_UID) { 523 owner_namelen = nfs_map_uid_to_name(server->nfs4_state, iap->ia_uid, owner_name); 524 if (owner_namelen < 0) { 525 printk(KERN_WARNING "nfs: couldn't resolve uid %d to string\n", 526 iap->ia_uid); 527 /* XXX */ 528 strcpy(owner_name, "nobody"); 529 owner_namelen = sizeof("nobody") - 1; 530 /* goto out; */ 531 } 532 len += 4 + (XDR_QUADLEN(owner_namelen) << 2); 533 } 534 if (iap->ia_valid & ATTR_GID) { 535 owner_grouplen = nfs_map_gid_to_group(server->nfs4_state, iap->ia_gid, owner_group); 536 if (owner_grouplen < 0) { 537 printk(KERN_WARNING "nfs4: couldn't resolve gid %d to string\n", 538 iap->ia_gid); 539 strcpy(owner_group, "nobody"); 540 owner_grouplen = sizeof("nobody") - 1; 541 /* goto out; */ 542 } 543 len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); 544 } 545 if (iap->ia_valid & ATTR_ATIME_SET) 546 len += 16; 547 else if (iap->ia_valid & ATTR_ATIME) 548 len += 4; 549 if (iap->ia_valid & ATTR_MTIME_SET) 550 len += 16; 551 else if (iap->ia_valid & ATTR_MTIME) 552 len += 4; 553 RESERVE_SPACE(len); 554 555 /* 556 * We write the bitmap length now, but leave the bitmap and the attribute 557 * buffer length to be backfilled at the end of this routine. 558 */ 559 WRITE32(2); 560 q = p; 561 p += 3; 562 563 if (iap->ia_valid & ATTR_SIZE) { 564 bmval0 |= FATTR4_WORD0_SIZE; 565 WRITE64(iap->ia_size); 566 } 567 if (iap->ia_valid & ATTR_MODE) { 568 bmval1 |= FATTR4_WORD1_MODE; 569 WRITE32(iap->ia_mode & S_IALLUGO); 570 } 571 if (iap->ia_valid & ATTR_UID) { 572 bmval1 |= FATTR4_WORD1_OWNER; 573 WRITE32(owner_namelen); 574 WRITEMEM(owner_name, owner_namelen); 575 } 576 if (iap->ia_valid & ATTR_GID) { 577 bmval1 |= FATTR4_WORD1_OWNER_GROUP; 578 WRITE32(owner_grouplen); 579 WRITEMEM(owner_group, owner_grouplen); 580 } 581 if (iap->ia_valid & ATTR_ATIME_SET) { 582 bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 583 WRITE32(NFS4_SET_TO_CLIENT_TIME); 584 WRITE32(0); 585 WRITE32(iap->ia_mtime.tv_sec); 586 WRITE32(iap->ia_mtime.tv_nsec); 587 } 588 else if (iap->ia_valid & ATTR_ATIME) { 589 bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 590 WRITE32(NFS4_SET_TO_SERVER_TIME); 591 } 592 if (iap->ia_valid & ATTR_MTIME_SET) { 593 bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 594 WRITE32(NFS4_SET_TO_CLIENT_TIME); 595 WRITE32(0); 596 WRITE32(iap->ia_mtime.tv_sec); 597 WRITE32(iap->ia_mtime.tv_nsec); 598 } 599 else if (iap->ia_valid & ATTR_MTIME) { 600 bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 601 WRITE32(NFS4_SET_TO_SERVER_TIME); 602 } 603 604 /* 605 * Now we backfill the bitmap and the attribute buffer length. 606 */ 607 if (len != ((char *)p - (char *)q) + 4) { 608 printk ("encode_attr: Attr length calculation error! %u != %Zu\n", 609 len, ((char *)p - (char *)q) + 4); 610 BUG(); 611 } 612 len = (char *)p - (char *)q - 12; 613 *q++ = htonl(bmval0); 614 *q++ = htonl(bmval1); 615 *q++ = htonl(len); 616 617 status = 0; 618 /* out: */ 619 return status; 620 } 621 622 static int encode_access(struct xdr_stream *xdr, u32 access) 623 { 624 uint32_t *p; 625 626 RESERVE_SPACE(8); 627 WRITE32(OP_ACCESS); 628 WRITE32(access); 629 630 return 0; 631 } 632 633 static int encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg) 634 { 635 uint32_t *p; 636 637 RESERVE_SPACE(8+sizeof(arg->stateid->data)); 638 WRITE32(OP_CLOSE); 639 WRITE32(arg->seqid->sequence->counter); 640 WRITEMEM(arg->stateid->data, sizeof(arg->stateid->data)); 641 642 return 0; 643 } 644 645 static int encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args) 646 { 647 uint32_t *p; 648 649 RESERVE_SPACE(16); 650 WRITE32(OP_COMMIT); 651 WRITE64(args->offset); 652 WRITE32(args->count); 653 654 return 0; 655 } 656 657 static int encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create) 658 { 659 uint32_t *p; 660 661 RESERVE_SPACE(8); 662 WRITE32(OP_CREATE); 663 WRITE32(create->ftype); 664 665 switch (create->ftype) { 666 case NF4LNK: 667 RESERVE_SPACE(4 + create->u.symlink->len); 668 WRITE32(create->u.symlink->len); 669 WRITEMEM(create->u.symlink->name, create->u.symlink->len); 670 break; 671 672 case NF4BLK: case NF4CHR: 673 RESERVE_SPACE(8); 674 WRITE32(create->u.device.specdata1); 675 WRITE32(create->u.device.specdata2); 676 break; 677 678 default: 679 break; 680 } 681 682 RESERVE_SPACE(4 + create->name->len); 683 WRITE32(create->name->len); 684 WRITEMEM(create->name->name, create->name->len); 685 686 return encode_attrs(xdr, create->attrs, create->server); 687 } 688 689 static int encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap) 690 { 691 uint32_t *p; 692 693 RESERVE_SPACE(12); 694 WRITE32(OP_GETATTR); 695 WRITE32(1); 696 WRITE32(bitmap); 697 return 0; 698 } 699 700 static int encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1) 701 { 702 uint32_t *p; 703 704 RESERVE_SPACE(16); 705 WRITE32(OP_GETATTR); 706 WRITE32(2); 707 WRITE32(bm0); 708 WRITE32(bm1); 709 return 0; 710 } 711 712 static int encode_getfattr(struct xdr_stream *xdr, const u32* bitmask) 713 { 714 return encode_getattr_two(xdr, 715 bitmask[0] & nfs4_fattr_bitmap[0], 716 bitmask[1] & nfs4_fattr_bitmap[1]); 717 } 718 719 static int encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask) 720 { 721 return encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0], 722 bitmask[1] & nfs4_fsinfo_bitmap[1]); 723 } 724 725 static int encode_getfh(struct xdr_stream *xdr) 726 { 727 uint32_t *p; 728 729 RESERVE_SPACE(4); 730 WRITE32(OP_GETFH); 731 732 return 0; 733 } 734 735 static int encode_link(struct xdr_stream *xdr, const struct qstr *name) 736 { 737 uint32_t *p; 738 739 RESERVE_SPACE(8 + name->len); 740 WRITE32(OP_LINK); 741 WRITE32(name->len); 742 WRITEMEM(name->name, name->len); 743 744 return 0; 745 } 746 747 static inline int nfs4_lock_type(struct file_lock *fl, int block) 748 { 749 if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK) 750 return block ? NFS4_READW_LT : NFS4_READ_LT; 751 return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; 752 } 753 754 static inline uint64_t nfs4_lock_length(struct file_lock *fl) 755 { 756 if (fl->fl_end == OFFSET_MAX) 757 return ~(uint64_t)0; 758 return fl->fl_end - fl->fl_start + 1; 759 } 760 761 /* 762 * opcode,type,reclaim,offset,length,new_lock_owner = 32 763 * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 764 */ 765 static int encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args) 766 { 767 uint32_t *p; 768 769 RESERVE_SPACE(32); 770 WRITE32(OP_LOCK); 771 WRITE32(nfs4_lock_type(args->fl, args->block)); 772 WRITE32(args->reclaim); 773 WRITE64(args->fl->fl_start); 774 WRITE64(nfs4_lock_length(args->fl)); 775 WRITE32(args->new_lock_owner); 776 if (args->new_lock_owner){ 777 RESERVE_SPACE(40); 778 WRITE32(args->open_seqid->sequence->counter); 779 WRITEMEM(args->open_stateid->data, sizeof(args->open_stateid->data)); 780 WRITE32(args->lock_seqid->sequence->counter); 781 WRITE64(args->lock_owner.clientid); 782 WRITE32(4); 783 WRITE32(args->lock_owner.id); 784 } 785 else { 786 RESERVE_SPACE(20); 787 WRITEMEM(args->lock_stateid->data, sizeof(args->lock_stateid->data)); 788 WRITE32(args->lock_seqid->sequence->counter); 789 } 790 791 return 0; 792 } 793 794 static int encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args) 795 { 796 uint32_t *p; 797 798 RESERVE_SPACE(40); 799 WRITE32(OP_LOCKT); 800 WRITE32(nfs4_lock_type(args->fl, 0)); 801 WRITE64(args->fl->fl_start); 802 WRITE64(nfs4_lock_length(args->fl)); 803 WRITE64(args->lock_owner.clientid); 804 WRITE32(4); 805 WRITE32(args->lock_owner.id); 806 807 return 0; 808 } 809 810 static int encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args) 811 { 812 uint32_t *p; 813 814 RESERVE_SPACE(44); 815 WRITE32(OP_LOCKU); 816 WRITE32(nfs4_lock_type(args->fl, 0)); 817 WRITE32(args->seqid->sequence->counter); 818 WRITEMEM(args->stateid->data, sizeof(args->stateid->data)); 819 WRITE64(args->fl->fl_start); 820 WRITE64(nfs4_lock_length(args->fl)); 821 822 return 0; 823 } 824 825 static int encode_lookup(struct xdr_stream *xdr, const struct qstr *name) 826 { 827 int len = name->len; 828 uint32_t *p; 829 830 RESERVE_SPACE(8 + len); 831 WRITE32(OP_LOOKUP); 832 WRITE32(len); 833 WRITEMEM(name->name, len); 834 835 return 0; 836 } 837 838 static void encode_share_access(struct xdr_stream *xdr, int open_flags) 839 { 840 uint32_t *p; 841 842 RESERVE_SPACE(8); 843 switch (open_flags & (FMODE_READ|FMODE_WRITE)) { 844 case FMODE_READ: 845 WRITE32(NFS4_SHARE_ACCESS_READ); 846 break; 847 case FMODE_WRITE: 848 WRITE32(NFS4_SHARE_ACCESS_WRITE); 849 break; 850 case FMODE_READ|FMODE_WRITE: 851 WRITE32(NFS4_SHARE_ACCESS_BOTH); 852 break; 853 default: 854 BUG(); 855 } 856 WRITE32(0); /* for linux, share_deny = 0 always */ 857 } 858 859 static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) 860 { 861 uint32_t *p; 862 /* 863 * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, 864 * owner 4 = 32 865 */ 866 RESERVE_SPACE(8); 867 WRITE32(OP_OPEN); 868 WRITE32(arg->seqid->sequence->counter); 869 encode_share_access(xdr, arg->open_flags); 870 RESERVE_SPACE(16); 871 WRITE64(arg->clientid); 872 WRITE32(4); 873 WRITE32(arg->id); 874 } 875 876 static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) 877 { 878 uint32_t *p; 879 880 RESERVE_SPACE(4); 881 switch(arg->open_flags & O_EXCL) { 882 case 0: 883 WRITE32(NFS4_CREATE_UNCHECKED); 884 encode_attrs(xdr, arg->u.attrs, arg->server); 885 break; 886 default: 887 WRITE32(NFS4_CREATE_EXCLUSIVE); 888 encode_nfs4_verifier(xdr, &arg->u.verifier); 889 } 890 } 891 892 static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) 893 { 894 uint32_t *p; 895 896 RESERVE_SPACE(4); 897 switch (arg->open_flags & O_CREAT) { 898 case 0: 899 WRITE32(NFS4_OPEN_NOCREATE); 900 break; 901 default: 902 BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); 903 WRITE32(NFS4_OPEN_CREATE); 904 encode_createmode(xdr, arg); 905 } 906 } 907 908 static inline void encode_delegation_type(struct xdr_stream *xdr, int delegation_type) 909 { 910 uint32_t *p; 911 912 RESERVE_SPACE(4); 913 switch (delegation_type) { 914 case 0: 915 WRITE32(NFS4_OPEN_DELEGATE_NONE); 916 break; 917 case FMODE_READ: 918 WRITE32(NFS4_OPEN_DELEGATE_READ); 919 break; 920 case FMODE_WRITE|FMODE_READ: 921 WRITE32(NFS4_OPEN_DELEGATE_WRITE); 922 break; 923 default: 924 BUG(); 925 } 926 } 927 928 static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) 929 { 930 uint32_t *p; 931 932 RESERVE_SPACE(4); 933 WRITE32(NFS4_OPEN_CLAIM_NULL); 934 encode_string(xdr, name->len, name->name); 935 } 936 937 static inline void encode_claim_previous(struct xdr_stream *xdr, int type) 938 { 939 uint32_t *p; 940 941 RESERVE_SPACE(4); 942 WRITE32(NFS4_OPEN_CLAIM_PREVIOUS); 943 encode_delegation_type(xdr, type); 944 } 945 946 static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) 947 { 948 uint32_t *p; 949 950 RESERVE_SPACE(4+sizeof(stateid->data)); 951 WRITE32(NFS4_OPEN_CLAIM_DELEGATE_CUR); 952 WRITEMEM(stateid->data, sizeof(stateid->data)); 953 encode_string(xdr, name->len, name->name); 954 } 955 956 static int encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg) 957 { 958 encode_openhdr(xdr, arg); 959 encode_opentype(xdr, arg); 960 switch (arg->claim) { 961 case NFS4_OPEN_CLAIM_NULL: 962 encode_claim_null(xdr, arg->name); 963 break; 964 case NFS4_OPEN_CLAIM_PREVIOUS: 965 encode_claim_previous(xdr, arg->u.delegation_type); 966 break; 967 case NFS4_OPEN_CLAIM_DELEGATE_CUR: 968 encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); 969 break; 970 default: 971 BUG(); 972 } 973 return 0; 974 } 975 976 static int encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg) 977 { 978 uint32_t *p; 979 980 RESERVE_SPACE(8+sizeof(arg->stateid->data)); 981 WRITE32(OP_OPEN_CONFIRM); 982 WRITEMEM(arg->stateid->data, sizeof(arg->stateid->data)); 983 WRITE32(arg->seqid->sequence->counter); 984 985 return 0; 986 } 987 988 static int encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg) 989 { 990 uint32_t *p; 991 992 RESERVE_SPACE(8+sizeof(arg->stateid->data)); 993 WRITE32(OP_OPEN_DOWNGRADE); 994 WRITEMEM(arg->stateid->data, sizeof(arg->stateid->data)); 995 WRITE32(arg->seqid->sequence->counter); 996 encode_share_access(xdr, arg->open_flags); 997 return 0; 998 } 999 1000 static int 1001 encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh) 1002 { 1003 int len = fh->size; 1004 uint32_t *p; 1005 1006 RESERVE_SPACE(8 + len); 1007 WRITE32(OP_PUTFH); 1008 WRITE32(len); 1009 WRITEMEM(fh->data, len); 1010 1011 return 0; 1012 } 1013 1014 static int encode_putrootfh(struct xdr_stream *xdr) 1015 { 1016 uint32_t *p; 1017 1018 RESERVE_SPACE(4); 1019 WRITE32(OP_PUTROOTFH); 1020 1021 return 0; 1022 } 1023 1024 static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx) 1025 { 1026 nfs4_stateid stateid; 1027 uint32_t *p; 1028 1029 RESERVE_SPACE(16); 1030 if (ctx->state != NULL) { 1031 nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner); 1032 WRITEMEM(stateid.data, sizeof(stateid.data)); 1033 } else 1034 WRITEMEM(zero_stateid.data, sizeof(zero_stateid.data)); 1035 } 1036 1037 static int encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args) 1038 { 1039 uint32_t *p; 1040 1041 RESERVE_SPACE(4); 1042 WRITE32(OP_READ); 1043 1044 encode_stateid(xdr, args->context); 1045 1046 RESERVE_SPACE(12); 1047 WRITE64(args->offset); 1048 WRITE32(args->count); 1049 1050 return 0; 1051 } 1052 1053 static int encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req) 1054 { 1055 struct rpc_auth *auth = req->rq_task->tk_auth; 1056 uint32_t attrs[2] = { 1057 FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID, 1058 FATTR4_WORD1_MOUNTED_ON_FILEID, 1059 }; 1060 int replen; 1061 uint32_t *p; 1062 1063 RESERVE_SPACE(32+sizeof(nfs4_verifier)); 1064 WRITE32(OP_READDIR); 1065 WRITE64(readdir->cookie); 1066 WRITEMEM(readdir->verifier.data, sizeof(readdir->verifier.data)); 1067 WRITE32(readdir->count >> 1); /* We're not doing readdirplus */ 1068 WRITE32(readdir->count); 1069 WRITE32(2); 1070 /* Switch to mounted_on_fileid if the server supports it */ 1071 if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) 1072 attrs[0] &= ~FATTR4_WORD0_FILEID; 1073 else 1074 attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 1075 WRITE32(attrs[0] & readdir->bitmask[0]); 1076 WRITE32(attrs[1] & readdir->bitmask[1]); 1077 dprintk("%s: cookie = %Lu, verifier = 0x%x%x, bitmap = 0x%x%x\n", 1078 __FUNCTION__, 1079 (unsigned long long)readdir->cookie, 1080 ((u32 *)readdir->verifier.data)[0], 1081 ((u32 *)readdir->verifier.data)[1], 1082 attrs[0] & readdir->bitmask[0], 1083 attrs[1] & readdir->bitmask[1]); 1084 1085 /* set up reply kvec 1086 * toplevel_status + taglen + rescount + OP_PUTFH + status 1087 * + OP_READDIR + status + verifer(2) = 9 1088 */ 1089 replen = (RPC_REPHDRSIZE + auth->au_rslack + 9) << 2; 1090 xdr_inline_pages(&req->rq_rcv_buf, replen, readdir->pages, 1091 readdir->pgbase, readdir->count); 1092 dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", 1093 __FUNCTION__, replen, readdir->pages, 1094 readdir->pgbase, readdir->count); 1095 1096 return 0; 1097 } 1098 1099 static int encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req) 1100 { 1101 struct rpc_auth *auth = req->rq_task->tk_auth; 1102 unsigned int replen; 1103 uint32_t *p; 1104 1105 RESERVE_SPACE(4); 1106 WRITE32(OP_READLINK); 1107 1108 /* set up reply kvec 1109 * toplevel_status + taglen + rescount + OP_PUTFH + status 1110 * + OP_READLINK + status + string length = 8 1111 */ 1112 replen = (RPC_REPHDRSIZE + auth->au_rslack + 8) << 2; 1113 xdr_inline_pages(&req->rq_rcv_buf, replen, readlink->pages, 1114 readlink->pgbase, readlink->pglen); 1115 1116 return 0; 1117 } 1118 1119 static int encode_remove(struct xdr_stream *xdr, const struct qstr *name) 1120 { 1121 uint32_t *p; 1122 1123 RESERVE_SPACE(8 + name->len); 1124 WRITE32(OP_REMOVE); 1125 WRITE32(name->len); 1126 WRITEMEM(name->name, name->len); 1127 1128 return 0; 1129 } 1130 1131 static int encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname) 1132 { 1133 uint32_t *p; 1134 1135 RESERVE_SPACE(8 + oldname->len); 1136 WRITE32(OP_RENAME); 1137 WRITE32(oldname->len); 1138 WRITEMEM(oldname->name, oldname->len); 1139 1140 RESERVE_SPACE(4 + newname->len); 1141 WRITE32(newname->len); 1142 WRITEMEM(newname->name, newname->len); 1143 1144 return 0; 1145 } 1146 1147 static int encode_renew(struct xdr_stream *xdr, const struct nfs4_client *client_stateid) 1148 { 1149 uint32_t *p; 1150 1151 RESERVE_SPACE(12); 1152 WRITE32(OP_RENEW); 1153 WRITE64(client_stateid->cl_clientid); 1154 1155 return 0; 1156 } 1157 1158 static int 1159 encode_restorefh(struct xdr_stream *xdr) 1160 { 1161 uint32_t *p; 1162 1163 RESERVE_SPACE(4); 1164 WRITE32(OP_RESTOREFH); 1165 1166 return 0; 1167 } 1168 1169 static int 1170 encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg) 1171 { 1172 uint32_t *p; 1173 1174 RESERVE_SPACE(4+sizeof(zero_stateid.data)); 1175 WRITE32(OP_SETATTR); 1176 WRITEMEM(zero_stateid.data, sizeof(zero_stateid.data)); 1177 RESERVE_SPACE(2*4); 1178 WRITE32(1); 1179 WRITE32(FATTR4_WORD0_ACL); 1180 if (arg->acl_len % 4) 1181 return -EINVAL; 1182 RESERVE_SPACE(4); 1183 WRITE32(arg->acl_len); 1184 xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); 1185 return 0; 1186 } 1187 1188 static int 1189 encode_savefh(struct xdr_stream *xdr) 1190 { 1191 uint32_t *p; 1192 1193 RESERVE_SPACE(4); 1194 WRITE32(OP_SAVEFH); 1195 1196 return 0; 1197 } 1198 1199 static int encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server) 1200 { 1201 int status; 1202 uint32_t *p; 1203 1204 RESERVE_SPACE(4+sizeof(arg->stateid.data)); 1205 WRITE32(OP_SETATTR); 1206 WRITEMEM(arg->stateid.data, sizeof(arg->stateid.data)); 1207 1208 if ((status = encode_attrs(xdr, arg->iap, server))) 1209 return status; 1210 1211 return 0; 1212 } 1213 1214 static int encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid) 1215 { 1216 uint32_t *p; 1217 1218 RESERVE_SPACE(4 + sizeof(setclientid->sc_verifier->data)); 1219 WRITE32(OP_SETCLIENTID); 1220 WRITEMEM(setclientid->sc_verifier->data, sizeof(setclientid->sc_verifier->data)); 1221 1222 encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); 1223 RESERVE_SPACE(4); 1224 WRITE32(setclientid->sc_prog); 1225 encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); 1226 encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); 1227 RESERVE_SPACE(4); 1228 WRITE32(setclientid->sc_cb_ident); 1229 1230 return 0; 1231 } 1232 1233 static int encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_client *client_state) 1234 { 1235 uint32_t *p; 1236 1237 RESERVE_SPACE(12 + sizeof(client_state->cl_confirm.data)); 1238 WRITE32(OP_SETCLIENTID_CONFIRM); 1239 WRITE64(client_state->cl_clientid); 1240 WRITEMEM(client_state->cl_confirm.data, sizeof(client_state->cl_confirm.data)); 1241 1242 return 0; 1243 } 1244 1245 static int encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args) 1246 { 1247 uint32_t *p; 1248 1249 RESERVE_SPACE(4); 1250 WRITE32(OP_WRITE); 1251 1252 encode_stateid(xdr, args->context); 1253 1254 RESERVE_SPACE(16); 1255 WRITE64(args->offset); 1256 WRITE32(args->stable); 1257 WRITE32(args->count); 1258 1259 xdr_write_pages(xdr, args->pages, args->pgbase, args->count); 1260 1261 return 0; 1262 } 1263 1264 static int encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid) 1265 { 1266 uint32_t *p; 1267 1268 RESERVE_SPACE(20); 1269 1270 WRITE32(OP_DELEGRETURN); 1271 WRITEMEM(stateid->data, sizeof(stateid->data)); 1272 return 0; 1273 1274 } 1275 /* 1276 * END OF "GENERIC" ENCODE ROUTINES. 1277 */ 1278 1279 /* 1280 * Encode an ACCESS request 1281 */ 1282 static int nfs4_xdr_enc_access(struct rpc_rqst *req, uint32_t *p, const struct nfs4_accessargs *args) 1283 { 1284 struct xdr_stream xdr; 1285 struct compound_hdr hdr = { 1286 .nops = 2, 1287 }; 1288 int status; 1289 1290 xdr_init_encode(&xdr, &req->rq_snd_buf, p); 1291 encode_compound_hdr(&xdr, &hdr); 1292 if ((status = encode_putfh(&xdr, args->fh)) == 0) 1293 status = encode_access(&xdr, args->access); 1294 return status; 1295 } 1296 1297 /* 1298 * Encode LOOKUP request 1299 */ 1300 static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, uint32_t *p, const struct nfs4_lookup_arg *args) 1301 { 1302 struct xdr_stream xdr; 1303 struct compound_hdr hdr = { 1304 .nops = 4, 1305 }; 1306 int status; 1307 1308 xdr_init_encode(&xdr, &req->rq_snd_buf, p); 1309 encode_compound_hdr(&xdr, &hdr); 1310 if ((status = encode_putfh(&xdr, args->dir_fh)) != 0) 1311 goto out; 1312 if ((status = encode_lookup(&xdr, args->name)) != 0) 1313 goto out; 1314 if ((status = encode_getfh(&xdr)) != 0) 1315 goto out; 1316 status = encode_getfattr(&xdr, args->bitmask); 1317 out: 1318 return status; 1319 } 1320 1321 /* 1322 * Encode LOOKUP_ROOT request 1323 */ 1324 static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, uint32_t *p, const struct nfs4_lookup_root_arg *args) 1325 { 1326 struct xdr_stream xdr; 1327 struct compound_hdr hdr = { 1328 .nops = 3, 1329 }; 1330 int status; 1331 1332 xdr_init_encode(&xdr, &req->rq_snd_buf, p); 1333 encode_compound_hdr(&xdr, &hdr); 1334 if ((status = encode_putrootfh(&xdr)) != 0) 1335 goto out; 1336 if ((status = encode_getfh(&xdr)) == 0) 1337 status = encode_getfattr(&xdr, args->bitmask); 1338 out: 1339 return status; 1340 } 1341 1342 /* 1343 * Encode REMOVE request 1344 */ 1345 static int nfs4_xdr_enc_remove(struct rpc_rqst *req, uint32_t *p, const struct nfs4_remove_arg *args) 1346 { 1347 struct xdr_stream xdr; 1348 struct compound_hdr hdr = { 1349 .nops = 3, 1350 }; 1351 int status; 1352 1353 xdr_init_encode(&xdr, &req->rq_snd_buf, p); 1354 encode_compound_hdr(&xdr, &hdr); 1355 if ((status = encode_putfh(&xdr, args->fh)) != 0) 1356 goto out; 1357 if ((status = encode_remove(&xdr, args->name)) != 0) 1358 goto out; 1359 status = encode_getfattr(&xdr, args->bitmask); 1360 out: 1361 return status; 1362 } 1363 1364 /* 1365 * Encode RENAME request 1366 */ 1367 static int nfs4_xdr_enc_rename(struct rpc_rqst *req, uint32_t *p, const struct nfs4_rename_arg *args) 1368 { 1369 struct xdr_stream xdr; 1370 struct compound_hdr hdr = { 1371 .nops = 7, 1372 }; 1373 int status; 1374 1375 xdr_init_encode(&xdr, &req->rq_snd_buf, p); 1376 encode_compound_hdr(&xdr, &hdr); 1377 if ((status = encode_putfh(&xdr, args->old_dir)) != 0) 1378 goto out; 1379 if ((status = encode_savefh(&xdr)) != 0) 1380 goto out; 1381 if ((status = encode_putfh(&xdr, args->new_dir)) != 0) 1382 goto out; 1383 if ((status = encode_rename(&xdr, args->old_name, args->new_name)) != 0) 1384 goto out; 1385 if ((status = encode_getfattr(&xdr, args->bitmask)) != 0) 1386 goto out; 1387 if ((status = encode_restorefh(&xdr)) != 0) 1388 goto out; 1389 status = encode_getfattr(&xdr, args->bitmask); 1390 out: 1391 return status; 1392 } 1393 1394 /* 1395 * Encode LINK request 1396 */ 1397 static int nfs4_xdr_enc_link(struct rpc_rqst *req, uint32_t *p, const struct nfs4_link_arg *args) 1398 { 1399 struct xdr_stream xdr; 1400 struct compound_hdr hdr = { 1401 .nops = 7, 1402 }; 1403 int status; 1404 1405 xdr_init_encode(&xdr, &req->rq_snd_buf, p); 1406 encode_compound_hdr(&xdr, &hdr); 1407 if ((status = encode_putfh(&xdr, args->fh)) != 0) 1408 goto out; 1409 if ((status = encode_savefh(&xdr)) != 0) 1410 goto out; 1411 if ((status = encode_putfh(&xdr, args->dir_fh)) != 0) 1412 goto out; 1413 if ((status = encode_link(&xdr, args->name)) != 0) 1414 goto out; 1415 if ((status = encode_getfattr(&xdr, args->bitmask)) != 0) 1416 goto out; 1417 if ((status = encode_restorefh(&xdr)) != 0) 1418 goto out; 1419 status = encode_getfattr(&xdr, args->bitmask); 1420 out: 1421 return status; 1422 } 1423 1424 /* 1425 * Encode CREATE request 1426 */ 1427 static int nfs4_xdr_enc_create(struct rpc_rqst *req, uint32_t *p, const struct nfs4_create_arg *args) 1428 { 1429 struct xdr_stream xdr; 1430 struct compound_hdr hdr = { 1431 .nops = 7, 1432 }; 1433 int status; 1434 1435 xdr_init_encode(&xdr, &req->rq_snd_buf, p); 1436 encode_compound_hdr(&xdr, &hdr); 1437 if ((status = encode_putfh(&xdr, args->dir_fh)) != 0) 1438 goto out; 1439 if ((status = encode_savefh(&xdr)) != 0) 1440 goto out; 1441 if ((status = encode_create(&xdr, args)) != 0) 1442 goto out; 1443 if ((status = encode_getfh(&xdr)) != 0) 1444 goto out; 1445 if ((status = encode_getfattr(&xdr, args->bitmask)) != 0) 1446 goto out; 1447 if ((status = encode_restorefh(&xdr)) != 0) 1448 goto out; 1449 status = encode_getfattr(&xdr, args->bitmask); 1450 out: 1451 return status; 1452 } 1453 1454 /* 1455 * Encode SYMLINK request 1456 */ 1457 static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, uint32_t *p, const struct nfs4_create_arg *args) 1458 { 1459 return nfs4_xdr_enc_create(req, p, args); 1460 } 1461 1462 /* 1463 * Encode GETATTR request 1464 */ 1465 static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, uint32_t *p, const struct nfs4_getattr_arg *args) 1466 { 1467 struct xdr_stream xdr; 1468 struct compound_hdr hdr = { 1469 .nops = 2, 1470 }; 1471 int status; 1472 1473 xdr_init_encode(&xdr, &req->rq_snd_buf, p); 1474 encode_compound_hdr(&xdr, &hdr); 1475 if ((status = encode_putfh(&xdr, args->fh)) == 0) 1476 status = encode_getfattr(&xdr, args->bitmask); 1477 return status; 1478 } 1479 1480 /* 1481 * Encode a CLOSE request 1482 */ 1483 static int nfs4_xdr_enc_close(struct rpc_rqst *req, uint32_t *p, struct nfs_closeargs *args) 1484 { 1485 struct xdr_stream xdr; 1486 struct compound_hdr hdr = { 1487 .nops = 3, 1488 }; 1489 int status; 1490 1491 xdr_init_encode(&xdr, &req->rq_snd_buf, p); 1492 encode_compound_hdr(&xdr, &hdr); 1493 status = encode_putfh(&xdr, args->fh); 1494 if(status) 1495 goto out; 1496 status = encode_close(&xdr, args); 1497 if (status != 0) 1498 goto out; 1499 status = encode_getfattr(&xdr, args->bitmask); 1500 out: 1501 return status; 1502 } 1503 1504 /* 1505 * Encode an OPEN request 1506 */ 1507 static int nfs4_xdr_enc_open(struct rpc_rqst *req, uint32_t *p, struct nfs_openargs *args) 1508 { 1509 struct xdr_stream xdr; 1510 struct compound_hdr hdr = { 1511 .nops = 7, 1512 }; 1513 int status; 1514 1515 xdr_init_encode(&xdr, &req->rq_snd_buf, p); 1516 encode_compound_hdr(&xdr, &hdr); 1517 status = encode_putfh(&xdr, args->fh); 1518 if (status) 1519 goto out; 1520 status = encode_savefh(&xdr); 1521 if (status) 1522 goto out; 1523 status = encode_open(&xdr, args); 1524 if (status) 1525 goto out; 1526 status = encode_getfh(&xdr); 1527 if (status) 1528 goto out; 1529 status = encode_getfattr(&xdr, args->bitmask); 1530 if (status) 1531 goto out; 1532 status = encode_restorefh(&xdr); 1533 if (status) 1534 goto out; 1535 status = encode_getfattr(&xdr, args->bitmask); 1536 out: 1537 return status; 1538 } 1539 1540 /* 1541 * Encode an OPEN_CONFIRM request 1542 */ 1543 static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, uint32_t *p, struct nfs_open_confirmargs *args) 1544 { 1545 struct xdr_stream xdr; 1546 struct compound_hdr hdr = { 1547 .nops = 2, 1548 }; 1549 int status; 1550 1551 xdr_init_encode(&xdr, &req->rq_snd_buf, p); 1552 encode_compound_hdr(&xdr, &hdr); 1553 status = encode_putfh(&xdr, args->fh); 1554 if(status) 1555 goto out; 1556 status = encode_open_confirm(&xdr, args); 1557 out: 1558 return status; 1559 } 1560 1561 /* 1562 * Encode an OPEN request with no attributes. 1563 */ 1564 static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, uint32_t *p, struct nfs_openargs *args) 1565 { 1566 struct xdr_stream xdr; 1567 struct compound_hdr hdr = { 1568 .nops = 3, 1569 }; 1570 int status; 1571 1572 xdr_init_encode(&xdr, &req->rq_snd_buf, p); 1573 encode_compound_hdr(&xdr, &hdr); 1574 status = encode_putfh(&xdr, args->fh); 1575 if (status) 1576 goto out; 1577 status = encode_open(&xdr, args); 1578 if (status) 1579 goto out; 1580 status = encode_getfattr(&xdr, args->bitmask); 1581 out: 1582 return status; 1583 } 1584 1585 /* 1586 * Encode an OPEN_DOWNGRADE request 1587 */ 1588 static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, uint32_t *p, struct nfs_closeargs *args) 1589 { 1590 struct xdr_stream xdr; 1591 struct compound_hdr hdr = { 1592 .nops = 3, 1593 }; 1594 int status; 1595 1596 xdr_init_encode(&xdr, &req->rq_snd_buf, p); 1597 encode_compound_hdr(&xdr, &hdr); 1598 status = encode_putfh(&xdr, args->fh); 1599 if (status) 1600 goto out; 1601 status = encode_open_downgrade(&xdr, args); 1602 if (status != 0) 1603 goto out; 1604 status = encode_getfattr(&xdr, args->bitmask); 1605 out: 1606 return status; 1607 } 1608 1609 /* 1610 * Encode a LOCK request 1611 */ 1612 static int nfs4_xdr_enc_lock(struct rpc_rqst *req, uint32_t *p, struct nfs_lock_args *args) 1613 { 1614 struct xdr_stream xdr; 1615 struct compound_hdr hdr = { 1616 .nops = 2, 1617 }; 1618 int status; 1619 1620 xdr_init_encode(&xdr, &req->rq_snd_buf, p); 1621 encode_compound_hdr(&xdr, &hdr); 1622 status = encode_putfh(&xdr, args->fh); 1623 if(status) 1624 goto out; 1625 status = encode_lock(&xdr, args); 1626 out: 1627 return status; 1628 } 1629 1630 /* 1631 * Encode a LOCKT request 1632 */ 1633 static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, uint32_t *p, struct nfs_lockt_args *args) 1634 { 1635 struct xdr_stream xdr; 1636 struct compound_hdr hdr = { 1637 .nops = 2, 1638 }; 1639 int status; 1640 1641 xdr_init_encode(&xdr, &req->rq_snd_buf, p); 1642 encode_compound_hdr(&xdr, &hdr); 1643 status = encode_putfh(&xdr, args->fh); 1644 if(status) 1645 goto out; 1646 status = encode_lockt(&xdr, args); 1647 out: 1648 return status; 1649 } 1650 1651 /* 1652 * Encode a LOCKU request 1653 */ 1654 static int nfs4_xdr_enc_locku(struct rpc_rqst *req, uint32_t *p, struct nfs_locku_args *args) 1655 { 1656 struct xdr_stream xdr; 1657 struct compound_hdr hdr = { 1658 .nops = 2, 1659 }; 1660 int status; 1661 1662 xdr_init_encode(&xdr, &req->rq_snd_buf, p); 1663 encode_compound_hdr(&xdr, &hdr); 1664 status = encode_putfh(&xdr, args->fh); 1665 if(status) 1666 goto out; 1667 status = encode_locku(&xdr, args); 1668 out: 1669 return status; 1670 } 1671 1672 /* 1673 * Encode a READLINK request 1674 */ 1675 static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, uint32_t *p, const struct nfs4_readlink *args) 1676 { 1677 struct xdr_stream xdr; 1678 struct compound_hdr hdr = { 1679 .nops = 2, 1680 }; 1681 int status; 1682 1683 xdr_init_encode(&xdr, &req->rq_snd_buf, p); 1684 encode_compound_hdr(&xdr, &hdr); 1685 status = encode_putfh(&xdr, args->fh); 1686 if(status) 1687 goto out; 1688 status = encode_readlink(&xdr, args, req); 1689 out: 1690 return status; 1691 } 1692 1693 /* 1694 * Encode a READDIR request 1695 */ 1696 static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, uint32_t *p, const struct nfs4_readdir_arg *args) 1697 { 1698 struct xdr_stream xdr; 1699 struct compound_hdr hdr = { 1700 .nops = 2, 1701 }; 1702 int status; 1703 1704 xdr_init_encode(&xdr, &req->rq_snd_buf, p); 1705 encode_compound_hdr(&xdr, &hdr); 1706 status = encode_putfh(&xdr, args->fh); 1707 if(status) 1708 goto out; 1709 status = encode_readdir(&xdr, args, req); 1710 out: 1711 return status; 1712 } 1713 1714 /* 1715 * Encode a READ request 1716 */ 1717 static int nfs4_xdr_enc_read(struct rpc_rqst *req, uint32_t *p, struct nfs_readargs *args) 1718 { 1719 struct rpc_auth *auth = req->rq_task->tk_auth; 1720 struct xdr_stream xdr; 1721 struct compound_hdr hdr = { 1722 .nops = 2, 1723 }; 1724 int replen, status; 1725 1726 xdr_init_encode(&xdr, &req->rq_snd_buf, p); 1727 encode_compound_hdr(&xdr, &hdr); 1728 status = encode_putfh(&xdr, args->fh); 1729 if (status) 1730 goto out; 1731 status = encode_read(&xdr, args); 1732 if (status) 1733 goto out; 1734 1735 /* set up reply kvec 1736 * toplevel status + taglen=0 + rescount + OP_PUTFH + status 1737 * + OP_READ + status + eof + datalen = 9 1738 */ 1739 replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_read_sz) << 2; 1740 xdr_inline_pages(&req->rq_rcv_buf, replen, 1741 args->pages, args->pgbase, args->count); 1742 out: 1743 return status; 1744 } 1745 1746 /* 1747 * Encode an SETATTR request 1748 */ 1749 static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, uint32_t *p, struct nfs_setattrargs *args) 1750 1751 { 1752 struct xdr_stream xdr; 1753 struct compound_hdr hdr = { 1754 .nops = 3, 1755 }; 1756 int status; 1757 1758 xdr_init_encode(&xdr, &req->rq_snd_buf, p); 1759 encode_compound_hdr(&xdr, &hdr); 1760 status = encode_putfh(&xdr, args->fh); 1761 if(status) 1762 goto out; 1763 status = encode_setattr(&xdr, args, args->server); 1764 if(status) 1765 goto out; 1766 status = encode_getfattr(&xdr, args->bitmask); 1767 out: 1768 return status; 1769 } 1770 1771 /* 1772 * Encode a GETACL request 1773 */ 1774 static int 1775 nfs4_xdr_enc_getacl(struct rpc_rqst *req, uint32_t *p, 1776 struct nfs_getaclargs *args) 1777 { 1778 struct xdr_stream xdr; 1779 struct rpc_auth *auth = req->rq_task->tk_auth; 1780 struct compound_hdr hdr = { 1781 .nops = 2, 1782 }; 1783 int replen, status; 1784 1785 xdr_init_encode(&xdr, &req->rq_snd_buf, p); 1786 encode_compound_hdr(&xdr, &hdr); 1787 status = encode_putfh(&xdr, args->fh); 1788 if (status) 1789 goto out; 1790 status = encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0); 1791 /* set up reply buffer: */ 1792 replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_getacl_sz) << 2; 1793 xdr_inline_pages(&req->rq_rcv_buf, replen, 1794 args->acl_pages, args->acl_pgbase, args->acl_len); 1795 out: 1796 return status; 1797 } 1798 1799 /* 1800 * Encode a WRITE request 1801 */ 1802 static int nfs4_xdr_enc_write(struct rpc_rqst *req, uint32_t *p, struct nfs_writeargs *args) 1803 { 1804 struct xdr_stream xdr; 1805 struct compound_hdr hdr = { 1806 .nops = 3, 1807 }; 1808 int status; 1809 1810 xdr_init_encode(&xdr, &req->rq_snd_buf, p); 1811 encode_compound_hdr(&xdr, &hdr); 1812 status = encode_putfh(&xdr, args->fh); 1813 if (status) 1814 goto out; 1815 status = encode_write(&xdr, args); 1816 if (status) 1817 goto out; 1818 status = encode_getfattr(&xdr, args->bitmask); 1819 out: 1820 return status; 1821 } 1822 1823 /* 1824 * a COMMIT request 1825 */ 1826 static int nfs4_xdr_enc_commit(struct rpc_rqst *req, uint32_t *p, struct nfs_writeargs *args) 1827 { 1828 struct xdr_stream xdr; 1829 struct compound_hdr hdr = { 1830 .nops = 3, 1831 }; 1832 int status; 1833 1834 xdr_init_encode(&xdr, &req->rq_snd_buf, p); 1835 encode_compound_hdr(&xdr, &hdr); 1836 status = encode_putfh(&xdr, args->fh); 1837 if (status) 1838 goto out; 1839 status = encode_commit(&xdr, args); 1840 if (status) 1841 goto out; 1842 status = encode_getfattr(&xdr, args->bitmask); 1843 out: 1844 return status; 1845 } 1846 1847 /* 1848 * FSINFO request 1849 */ 1850 static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, uint32_t *p, struct nfs4_fsinfo_arg *args) 1851 { 1852 struct xdr_stream xdr; 1853 struct compound_hdr hdr = { 1854 .nops = 2, 1855 }; 1856 int status; 1857 1858 xdr_init_encode(&xdr, &req->rq_snd_buf, p); 1859 encode_compound_hdr(&xdr, &hdr); 1860 status = encode_putfh(&xdr, args->fh); 1861 if (!status) 1862 status = encode_fsinfo(&xdr, args->bitmask); 1863 return status; 1864 } 1865 1866 /* 1867 * a PATHCONF request 1868 */ 1869 static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, uint32_t *p, const struct nfs4_pathconf_arg *args) 1870 { 1871 struct xdr_stream xdr; 1872 struct compound_hdr hdr = { 1873 .nops = 2, 1874 }; 1875 int status; 1876 1877 xdr_init_encode(&xdr, &req->rq_snd_buf, p); 1878 encode_compound_hdr(&xdr, &hdr); 1879 status = encode_putfh(&xdr, args->fh); 1880 if (!status) 1881 status = encode_getattr_one(&xdr, 1882 args->bitmask[0] & nfs4_pathconf_bitmap[0]); 1883 return status; 1884 } 1885 1886 /* 1887 * a STATFS request 1888 */ 1889 static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, uint32_t *p, const struct nfs4_statfs_arg *args) 1890 { 1891 struct xdr_stream xdr; 1892 struct compound_hdr hdr = { 1893 .nops = 2, 1894 }; 1895 int status; 1896 1897 xdr_init_encode(&xdr, &req->rq_snd_buf, p); 1898 encode_compound_hdr(&xdr, &hdr); 1899 status = encode_putfh(&xdr, args->fh); 1900 if (status == 0) 1901 status = encode_getattr_two(&xdr, 1902 args->bitmask[0] & nfs4_statfs_bitmap[0], 1903 args->bitmask[1] & nfs4_statfs_bitmap[1]); 1904 return status; 1905 } 1906 1907 /* 1908 * GETATTR_BITMAP request 1909 */ 1910 static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, uint32_t *p, const struct nfs_fh *fhandle) 1911 { 1912 struct xdr_stream xdr; 1913 struct compound_hdr hdr = { 1914 .nops = 2, 1915 }; 1916 int status; 1917 1918 xdr_init_encode(&xdr, &req->rq_snd_buf, p); 1919 encode_compound_hdr(&xdr, &hdr); 1920 status = encode_putfh(&xdr, fhandle); 1921 if (status == 0) 1922 status = encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS| 1923 FATTR4_WORD0_LINK_SUPPORT| 1924 FATTR4_WORD0_SYMLINK_SUPPORT| 1925 FATTR4_WORD0_ACLSUPPORT); 1926 return status; 1927 } 1928 1929 /* 1930 * a RENEW request 1931 */ 1932 static int nfs4_xdr_enc_renew(struct rpc_rqst *req, uint32_t *p, struct nfs4_client *clp) 1933 { 1934 struct xdr_stream xdr; 1935 struct compound_hdr hdr = { 1936 .nops = 1, 1937 }; 1938 1939 xdr_init_encode(&xdr, &req->rq_snd_buf, p); 1940 encode_compound_hdr(&xdr, &hdr); 1941 return encode_renew(&xdr, clp); 1942 } 1943 1944 /* 1945 * a SETCLIENTID request 1946 */ 1947 static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, uint32_t *p, struct nfs4_setclientid *sc) 1948 { 1949 struct xdr_stream xdr; 1950 struct compound_hdr hdr = { 1951 .nops = 1, 1952 }; 1953 1954 xdr_init_encode(&xdr, &req->rq_snd_buf, p); 1955 encode_compound_hdr(&xdr, &hdr); 1956 return encode_setclientid(&xdr, sc); 1957 } 1958 1959 /* 1960 * a SETCLIENTID_CONFIRM request 1961 */ 1962 static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, uint32_t *p, struct nfs4_client *clp) 1963 { 1964 struct xdr_stream xdr; 1965 struct compound_hdr hdr = { 1966 .nops = 3, 1967 }; 1968 const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; 1969 int status; 1970 1971 xdr_init_encode(&xdr, &req->rq_snd_buf, p); 1972 encode_compound_hdr(&xdr, &hdr); 1973 status = encode_setclientid_confirm(&xdr, clp); 1974 if (!status) 1975 status = encode_putrootfh(&xdr); 1976 if (!status) 1977 status = encode_fsinfo(&xdr, lease_bitmap); 1978 return status; 1979 } 1980 1981 /* 1982 * DELEGRETURN request 1983 */ 1984 static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, uint32_t *p, const struct nfs4_delegreturnargs *args) 1985 { 1986 struct xdr_stream xdr; 1987 struct compound_hdr hdr = { 1988 .nops = 3, 1989 }; 1990 int status; 1991 1992 xdr_init_encode(&xdr, &req->rq_snd_buf, p); 1993 encode_compound_hdr(&xdr, &hdr); 1994 status = encode_putfh(&xdr, args->fhandle); 1995 if (status != 0) 1996 goto out; 1997 status = encode_delegreturn(&xdr, args->stateid); 1998 if (status != 0) 1999 goto out; 2000 status = encode_getfattr(&xdr, args->bitmask); 2001 out: 2002 return status; 2003 } 2004 2005 /* 2006 * START OF "GENERIC" DECODE ROUTINES. 2007 * These may look a little ugly since they are imported from a "generic" 2008 * set of XDR encode/decode routines which are intended to be shared by 2009 * all of our NFSv4 implementations (OpenBSD, MacOS X...). 2010 * 2011 * If the pain of reading these is too great, it should be a straightforward 2012 * task to translate them into Linux-specific versions which are more 2013 * consistent with the style used in NFSv2/v3... 2014 */ 2015 #define READ32(x) (x) = ntohl(*p++) 2016 #define READ64(x) do { \ 2017 (x) = (u64)ntohl(*p++) << 32; \ 2018 (x) |= ntohl(*p++); \ 2019 } while (0) 2020 #define READTIME(x) do { \ 2021 p++; \ 2022 (x.tv_sec) = ntohl(*p++); \ 2023 (x.tv_nsec) = ntohl(*p++); \ 2024 } while (0) 2025 #define COPYMEM(x,nbytes) do { \ 2026 memcpy((x), p, nbytes); \ 2027 p += XDR_QUADLEN(nbytes); \ 2028 } while (0) 2029 2030 #define READ_BUF(nbytes) do { \ 2031 p = xdr_inline_decode(xdr, nbytes); \ 2032 if (!p) { \ 2033 printk(KERN_WARNING "%s: reply buffer overflowed in line %d.", \ 2034 __FUNCTION__, __LINE__); \ 2035 return -EIO; \ 2036 } \ 2037 } while (0) 2038 2039 static int decode_opaque_inline(struct xdr_stream *xdr, uint32_t *len, char **string) 2040 { 2041 uint32_t *p; 2042 2043 READ_BUF(4); 2044 READ32(*len); 2045 READ_BUF(*len); 2046 *string = (char *)p; 2047 return 0; 2048 } 2049 2050 static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 2051 { 2052 uint32_t *p; 2053 2054 READ_BUF(8); 2055 READ32(hdr->status); 2056 READ32(hdr->taglen); 2057 2058 READ_BUF(hdr->taglen + 4); 2059 hdr->tag = (char *)p; 2060 p += XDR_QUADLEN(hdr->taglen); 2061 READ32(hdr->nops); 2062 return 0; 2063 } 2064 2065 static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 2066 { 2067 uint32_t *p; 2068 uint32_t opnum; 2069 int32_t nfserr; 2070 2071 READ_BUF(8); 2072 READ32(opnum); 2073 if (opnum != expected) { 2074 printk(KERN_NOTICE 2075 "nfs4_decode_op_hdr: Server returned operation" 2076 " %d but we issued a request for %d\n", 2077 opnum, expected); 2078 return -EIO; 2079 } 2080 READ32(nfserr); 2081 if (nfserr != NFS_OK) 2082 return -nfs_stat_to_errno(nfserr); 2083 return 0; 2084 } 2085 2086 /* Dummy routine */ 2087 static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs4_client *clp) 2088 { 2089 uint32_t *p; 2090 uint32_t strlen; 2091 char *str; 2092 2093 READ_BUF(12); 2094 return decode_opaque_inline(xdr, &strlen, &str); 2095 } 2096 2097 static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 2098 { 2099 uint32_t bmlen, *p; 2100 2101 READ_BUF(4); 2102 READ32(bmlen); 2103 2104 bitmap[0] = bitmap[1] = 0; 2105 READ_BUF((bmlen << 2)); 2106 if (bmlen > 0) { 2107 READ32(bitmap[0]); 2108 if (bmlen > 1) 2109 READ32(bitmap[1]); 2110 } 2111 return 0; 2112 } 2113 2114 static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, uint32_t **savep) 2115 { 2116 uint32_t *p; 2117 2118 READ_BUF(4); 2119 READ32(*attrlen); 2120 *savep = xdr->p; 2121 return 0; 2122 } 2123 2124 static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 2125 { 2126 if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { 2127 decode_attr_bitmap(xdr, bitmask); 2128 bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; 2129 } else 2130 bitmask[0] = bitmask[1] = 0; 2131 dprintk("%s: bitmask=0x%x%x\n", __FUNCTION__, bitmask[0], bitmask[1]); 2132 return 0; 2133 } 2134 2135 static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) 2136 { 2137 uint32_t *p; 2138 2139 *type = 0; 2140 if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 2141 return -EIO; 2142 if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 2143 READ_BUF(4); 2144 READ32(*type); 2145 if (*type < NF4REG || *type > NF4NAMEDATTR) { 2146 dprintk("%s: bad type %d\n", __FUNCTION__, *type); 2147 return -EIO; 2148 } 2149 bitmap[0] &= ~FATTR4_WORD0_TYPE; 2150 } 2151 dprintk("%s: type=0%o\n", __FUNCTION__, nfs_type2fmt[*type].nfs2type); 2152 return 0; 2153 } 2154 2155 static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) 2156 { 2157 uint32_t *p; 2158 2159 *change = 0; 2160 if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 2161 return -EIO; 2162 if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 2163 READ_BUF(8); 2164 READ64(*change); 2165 bitmap[0] &= ~FATTR4_WORD0_CHANGE; 2166 } 2167 dprintk("%s: change attribute=%Lu\n", __FUNCTION__, 2168 (unsigned long long)*change); 2169 return 0; 2170 } 2171 2172 static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 2173 { 2174 uint32_t *p; 2175 2176 *size = 0; 2177 if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 2178 return -EIO; 2179 if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 2180 READ_BUF(8); 2181 READ64(*size); 2182 bitmap[0] &= ~FATTR4_WORD0_SIZE; 2183 } 2184 dprintk("%s: file size=%Lu\n", __FUNCTION__, (unsigned long long)*size); 2185 return 0; 2186 } 2187 2188 static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 2189 { 2190 uint32_t *p; 2191 2192 *res = 0; 2193 if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 2194 return -EIO; 2195 if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 2196 READ_BUF(4); 2197 READ32(*res); 2198 bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 2199 } 2200 dprintk("%s: link support=%s\n", __FUNCTION__, *res == 0 ? "false" : "true"); 2201 return 0; 2202 } 2203 2204 static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 2205 { 2206 uint32_t *p; 2207 2208 *res = 0; 2209 if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) 2210 return -EIO; 2211 if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { 2212 READ_BUF(4); 2213 READ32(*res); 2214 bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; 2215 } 2216 dprintk("%s: symlink support=%s\n", __FUNCTION__, *res == 0 ? "false" : "true"); 2217 return 0; 2218 } 2219 2220 static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fsid *fsid) 2221 { 2222 uint32_t *p; 2223 2224 fsid->major = 0; 2225 fsid->minor = 0; 2226 if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 2227 return -EIO; 2228 if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 2229 READ_BUF(16); 2230 READ64(fsid->major); 2231 READ64(fsid->minor); 2232 bitmap[0] &= ~FATTR4_WORD0_FSID; 2233 } 2234 dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __FUNCTION__, 2235 (unsigned long long)fsid->major, 2236 (unsigned long long)fsid->minor); 2237 return 0; 2238 } 2239 2240 static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 2241 { 2242 uint32_t *p; 2243 2244 *res = 60; 2245 if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 2246 return -EIO; 2247 if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 2248 READ_BUF(4); 2249 READ32(*res); 2250 bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; 2251 } 2252 dprintk("%s: file size=%u\n", __FUNCTION__, (unsigned int)*res); 2253 return 0; 2254 } 2255 2256 static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 2257 { 2258 uint32_t *p; 2259 2260 *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; 2261 if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 2262 return -EIO; 2263 if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 2264 READ_BUF(4); 2265 READ32(*res); 2266 bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 2267 } 2268 dprintk("%s: ACLs supported=%u\n", __FUNCTION__, (unsigned int)*res); 2269 return 0; 2270 } 2271 2272 static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 2273 { 2274 uint32_t *p; 2275 2276 *fileid = 0; 2277 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 2278 return -EIO; 2279 if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 2280 READ_BUF(8); 2281 READ64(*fileid); 2282 bitmap[0] &= ~FATTR4_WORD0_FILEID; 2283 } 2284 dprintk("%s: fileid=%Lu\n", __FUNCTION__, (unsigned long long)*fileid); 2285 return 0; 2286 } 2287 2288 static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 2289 { 2290 uint32_t *p; 2291 int status = 0; 2292 2293 *res = 0; 2294 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 2295 return -EIO; 2296 if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 2297 READ_BUF(8); 2298 READ64(*res); 2299 bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 2300 } 2301 dprintk("%s: files avail=%Lu\n", __FUNCTION__, (unsigned long long)*res); 2302 return status; 2303 } 2304 2305 static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 2306 { 2307 uint32_t *p; 2308 int status = 0; 2309 2310 *res = 0; 2311 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 2312 return -EIO; 2313 if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 2314 READ_BUF(8); 2315 READ64(*res); 2316 bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 2317 } 2318 dprintk("%s: files free=%Lu\n", __FUNCTION__, (unsigned long long)*res); 2319 return status; 2320 } 2321 2322 static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 2323 { 2324 uint32_t *p; 2325 int status = 0; 2326 2327 *res = 0; 2328 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) 2329 return -EIO; 2330 if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 2331 READ_BUF(8); 2332 READ64(*res); 2333 bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 2334 } 2335 dprintk("%s: files total=%Lu\n", __FUNCTION__, (unsigned long long)*res); 2336 return status; 2337 } 2338 2339 static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 2340 { 2341 uint32_t *p; 2342 int status = 0; 2343 2344 *res = 0; 2345 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 2346 return -EIO; 2347 if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 2348 READ_BUF(8); 2349 READ64(*res); 2350 bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 2351 } 2352 dprintk("%s: maxfilesize=%Lu\n", __FUNCTION__, (unsigned long long)*res); 2353 return status; 2354 } 2355 2356 static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 2357 { 2358 uint32_t *p; 2359 int status = 0; 2360 2361 *maxlink = 1; 2362 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 2363 return -EIO; 2364 if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 2365 READ_BUF(4); 2366 READ32(*maxlink); 2367 bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 2368 } 2369 dprintk("%s: maxlink=%u\n", __FUNCTION__, *maxlink); 2370 return status; 2371 } 2372 2373 static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 2374 { 2375 uint32_t *p; 2376 int status = 0; 2377 2378 *maxname = 1024; 2379 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 2380 return -EIO; 2381 if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 2382 READ_BUF(4); 2383 READ32(*maxname); 2384 bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 2385 } 2386 dprintk("%s: maxname=%u\n", __FUNCTION__, *maxname); 2387 return status; 2388 } 2389 2390 static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 2391 { 2392 uint32_t *p; 2393 int status = 0; 2394 2395 *res = 1024; 2396 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) 2397 return -EIO; 2398 if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 2399 uint64_t maxread; 2400 READ_BUF(8); 2401 READ64(maxread); 2402 if (maxread > 0x7FFFFFFF) 2403 maxread = 0x7FFFFFFF; 2404 *res = (uint32_t)maxread; 2405 bitmap[0] &= ~FATTR4_WORD0_MAXREAD; 2406 } 2407 dprintk("%s: maxread=%lu\n", __FUNCTION__, (unsigned long)*res); 2408 return status; 2409 } 2410 2411 static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 2412 { 2413 uint32_t *p; 2414 int status = 0; 2415 2416 *res = 1024; 2417 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) 2418 return -EIO; 2419 if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 2420 uint64_t maxwrite; 2421 READ_BUF(8); 2422 READ64(maxwrite); 2423 if (maxwrite > 0x7FFFFFFF) 2424 maxwrite = 0x7FFFFFFF; 2425 *res = (uint32_t)maxwrite; 2426 bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; 2427 } 2428 dprintk("%s: maxwrite=%lu\n", __FUNCTION__, (unsigned long)*res); 2429 return status; 2430 } 2431 2432 static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *mode) 2433 { 2434 uint32_t *p; 2435 2436 *mode = 0; 2437 if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 2438 return -EIO; 2439 if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 2440 READ_BUF(4); 2441 READ32(*mode); 2442 *mode &= ~S_IFMT; 2443 bitmap[1] &= ~FATTR4_WORD1_MODE; 2444 } 2445 dprintk("%s: file mode=0%o\n", __FUNCTION__, (unsigned int)*mode); 2446 return 0; 2447 } 2448 2449 static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 2450 { 2451 uint32_t *p; 2452 2453 *nlink = 1; 2454 if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 2455 return -EIO; 2456 if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 2457 READ_BUF(4); 2458 READ32(*nlink); 2459 bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 2460 } 2461 dprintk("%s: nlink=%u\n", __FUNCTION__, (unsigned int)*nlink); 2462 return 0; 2463 } 2464 2465 static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_client *clp, int32_t *uid) 2466 { 2467 uint32_t len, *p; 2468 2469 *uid = -2; 2470 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 2471 return -EIO; 2472 if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { 2473 READ_BUF(4); 2474 READ32(len); 2475 READ_BUF(len); 2476 if (len < XDR_MAX_NETOBJ) { 2477 if (nfs_map_name_to_uid(clp, (char *)p, len, uid) != 0) 2478 dprintk("%s: nfs_map_name_to_uid failed!\n", 2479 __FUNCTION__); 2480 } else 2481 printk(KERN_WARNING "%s: name too long (%u)!\n", 2482 __FUNCTION__, len); 2483 bitmap[1] &= ~FATTR4_WORD1_OWNER; 2484 } 2485 dprintk("%s: uid=%d\n", __FUNCTION__, (int)*uid); 2486 return 0; 2487 } 2488 2489 static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_client *clp, int32_t *gid) 2490 { 2491 uint32_t len, *p; 2492 2493 *gid = -2; 2494 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 2495 return -EIO; 2496 if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { 2497 READ_BUF(4); 2498 READ32(len); 2499 READ_BUF(len); 2500 if (len < XDR_MAX_NETOBJ) { 2501 if (nfs_map_group_to_gid(clp, (char *)p, len, gid) != 0) 2502 dprintk("%s: nfs_map_group_to_gid failed!\n", 2503 __FUNCTION__); 2504 } else 2505 printk(KERN_WARNING "%s: name too long (%u)!\n", 2506 __FUNCTION__, len); 2507 bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; 2508 } 2509 dprintk("%s: gid=%d\n", __FUNCTION__, (int)*gid); 2510 return 0; 2511 } 2512 2513 static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 2514 { 2515 uint32_t major = 0, minor = 0, *p; 2516 2517 *rdev = MKDEV(0,0); 2518 if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) 2519 return -EIO; 2520 if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 2521 dev_t tmp; 2522 2523 READ_BUF(8); 2524 READ32(major); 2525 READ32(minor); 2526 tmp = MKDEV(major, minor); 2527 if (MAJOR(tmp) == major && MINOR(tmp) == minor) 2528 *rdev = tmp; 2529 bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; 2530 } 2531 dprintk("%s: rdev=(0x%x:0x%x)\n", __FUNCTION__, major, minor); 2532 return 0; 2533 } 2534 2535 static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 2536 { 2537 uint32_t *p; 2538 int status = 0; 2539 2540 *res = 0; 2541 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 2542 return -EIO; 2543 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 2544 READ_BUF(8); 2545 READ64(*res); 2546 bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 2547 } 2548 dprintk("%s: space avail=%Lu\n", __FUNCTION__, (unsigned long long)*res); 2549 return status; 2550 } 2551 2552 static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 2553 { 2554 uint32_t *p; 2555 int status = 0; 2556 2557 *res = 0; 2558 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 2559 return -EIO; 2560 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 2561 READ_BUF(8); 2562 READ64(*res); 2563 bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 2564 } 2565 dprintk("%s: space free=%Lu\n", __FUNCTION__, (unsigned long long)*res); 2566 return status; 2567 } 2568 2569 static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 2570 { 2571 uint32_t *p; 2572 int status = 0; 2573 2574 *res = 0; 2575 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 2576 return -EIO; 2577 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 2578 READ_BUF(8); 2579 READ64(*res); 2580 bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 2581 } 2582 dprintk("%s: space total=%Lu\n", __FUNCTION__, (unsigned long long)*res); 2583 return status; 2584 } 2585 2586 static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 2587 { 2588 uint32_t *p; 2589 2590 *used = 0; 2591 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 2592 return -EIO; 2593 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 2594 READ_BUF(8); 2595 READ64(*used); 2596 bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 2597 } 2598 dprintk("%s: space used=%Lu\n", __FUNCTION__, 2599 (unsigned long long)*used); 2600 return 0; 2601 } 2602 2603 static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 2604 { 2605 uint32_t *p; 2606 uint64_t sec; 2607 uint32_t nsec; 2608 2609 READ_BUF(12); 2610 READ64(sec); 2611 READ32(nsec); 2612 time->tv_sec = (time_t)sec; 2613 time->tv_nsec = (long)nsec; 2614 return 0; 2615 } 2616 2617 static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 2618 { 2619 int status = 0; 2620 2621 time->tv_sec = 0; 2622 time->tv_nsec = 0; 2623 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) 2624 return -EIO; 2625 if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { 2626 status = decode_attr_time(xdr, time); 2627 bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; 2628 } 2629 dprintk("%s: atime=%ld\n", __FUNCTION__, (long)time->tv_sec); 2630 return status; 2631 } 2632 2633 static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 2634 { 2635 int status = 0; 2636 2637 time->tv_sec = 0; 2638 time->tv_nsec = 0; 2639 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) 2640 return -EIO; 2641 if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { 2642 status = decode_attr_time(xdr, time); 2643 bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; 2644 } 2645 dprintk("%s: ctime=%ld\n", __FUNCTION__, (long)time->tv_sec); 2646 return status; 2647 } 2648 2649 static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 2650 { 2651 int status = 0; 2652 2653 time->tv_sec = 0; 2654 time->tv_nsec = 0; 2655 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) 2656 return -EIO; 2657 if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { 2658 status = decode_attr_time(xdr, time); 2659 bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; 2660 } 2661 dprintk("%s: mtime=%ld\n", __FUNCTION__, (long)time->tv_sec); 2662 return status; 2663 } 2664 2665 static int verify_attr_len(struct xdr_stream *xdr, uint32_t *savep, uint32_t attrlen) 2666 { 2667 unsigned int attrwords = XDR_QUADLEN(attrlen); 2668 unsigned int nwords = xdr->p - savep; 2669 2670 if (unlikely(attrwords != nwords)) { 2671 printk(KERN_WARNING "%s: server returned incorrect attribute length: %u %c %u\n", 2672 __FUNCTION__, 2673 attrwords << 2, 2674 (attrwords < nwords) ? '<' : '>', 2675 nwords << 2); 2676 return -EIO; 2677 } 2678 return 0; 2679 } 2680 2681 static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 2682 { 2683 uint32_t *p; 2684 2685 READ_BUF(20); 2686 READ32(cinfo->atomic); 2687 READ64(cinfo->before); 2688 READ64(cinfo->after); 2689 return 0; 2690 } 2691 2692 static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) 2693 { 2694 uint32_t *p; 2695 uint32_t supp, acc; 2696 int status; 2697 2698 status = decode_op_hdr(xdr, OP_ACCESS); 2699 if (status) 2700 return status; 2701 READ_BUF(8); 2702 READ32(supp); 2703 READ32(acc); 2704 access->supported = supp; 2705 access->access = acc; 2706 return 0; 2707 } 2708 2709 static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 2710 { 2711 uint32_t *p; 2712 int status; 2713 2714 status = decode_op_hdr(xdr, OP_CLOSE); 2715 if (status) 2716 return status; 2717 READ_BUF(sizeof(res->stateid.data)); 2718 COPYMEM(res->stateid.data, sizeof(res->stateid.data)); 2719 return 0; 2720 } 2721 2722 static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) 2723 { 2724 uint32_t *p; 2725 int status; 2726 2727 status = decode_op_hdr(xdr, OP_COMMIT); 2728 if (status) 2729 return status; 2730 READ_BUF(8); 2731 COPYMEM(res->verf->verifier, 8); 2732 return 0; 2733 } 2734 2735 static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 2736 { 2737 uint32_t *p; 2738 uint32_t bmlen; 2739 int status; 2740 2741 status = decode_op_hdr(xdr, OP_CREATE); 2742 if (status) 2743 return status; 2744 if ((status = decode_change_info(xdr, cinfo))) 2745 return status; 2746 READ_BUF(4); 2747 READ32(bmlen); 2748 READ_BUF(bmlen << 2); 2749 return 0; 2750 } 2751 2752 static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 2753 { 2754 uint32_t *savep; 2755 uint32_t attrlen, 2756 bitmap[2] = {0}; 2757 int status; 2758 2759 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 2760 goto xdr_error; 2761 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 2762 goto xdr_error; 2763 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 2764 goto xdr_error; 2765 if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) 2766 goto xdr_error; 2767 if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) 2768 goto xdr_error; 2769 if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) 2770 goto xdr_error; 2771 if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) 2772 goto xdr_error; 2773 status = verify_attr_len(xdr, savep, attrlen); 2774 xdr_error: 2775 dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status); 2776 return status; 2777 } 2778 2779 static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) 2780 { 2781 uint32_t *savep; 2782 uint32_t attrlen, 2783 bitmap[2] = {0}; 2784 int status; 2785 2786 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 2787 goto xdr_error; 2788 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 2789 goto xdr_error; 2790 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 2791 goto xdr_error; 2792 2793 if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) 2794 goto xdr_error; 2795 if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) 2796 goto xdr_error; 2797 if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) 2798 goto xdr_error; 2799 if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) 2800 goto xdr_error; 2801 if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) 2802 goto xdr_error; 2803 if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) 2804 goto xdr_error; 2805 2806 status = verify_attr_len(xdr, savep, attrlen); 2807 xdr_error: 2808 dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status); 2809 return status; 2810 } 2811 2812 static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) 2813 { 2814 uint32_t *savep; 2815 uint32_t attrlen, 2816 bitmap[2] = {0}; 2817 int status; 2818 2819 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 2820 goto xdr_error; 2821 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 2822 goto xdr_error; 2823 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 2824 goto xdr_error; 2825 2826 if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) 2827 goto xdr_error; 2828 if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) 2829 goto xdr_error; 2830 2831 status = verify_attr_len(xdr, savep, attrlen); 2832 xdr_error: 2833 dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status); 2834 return status; 2835 } 2836 2837 static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, const struct nfs_server *server) 2838 { 2839 uint32_t *savep; 2840 uint32_t attrlen, 2841 bitmap[2] = {0}, 2842 type; 2843 int status, fmode = 0; 2844 2845 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 2846 goto xdr_error; 2847 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 2848 goto xdr_error; 2849 2850 fattr->bitmap[0] = bitmap[0]; 2851 fattr->bitmap[1] = bitmap[1]; 2852 2853 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 2854 goto xdr_error; 2855 2856 2857 if ((status = decode_attr_type(xdr, bitmap, &type)) != 0) 2858 goto xdr_error; 2859 fattr->type = nfs_type2fmt[type].nfs2type; 2860 fmode = nfs_type2fmt[type].mode; 2861 2862 if ((status = decode_attr_change(xdr, bitmap, &fattr->change_attr)) != 0) 2863 goto xdr_error; 2864 if ((status = decode_attr_size(xdr, bitmap, &fattr->size)) != 0) 2865 goto xdr_error; 2866 if ((status = decode_attr_fsid(xdr, bitmap, &fattr->fsid_u.nfs4)) != 0) 2867 goto xdr_error; 2868 if ((status = decode_attr_fileid(xdr, bitmap, &fattr->fileid)) != 0) 2869 goto xdr_error; 2870 if ((status = decode_attr_mode(xdr, bitmap, &fattr->mode)) != 0) 2871 goto xdr_error; 2872 fattr->mode |= fmode; 2873 if ((status = decode_attr_nlink(xdr, bitmap, &fattr->nlink)) != 0) 2874 goto xdr_error; 2875 if ((status = decode_attr_owner(xdr, bitmap, server->nfs4_state, &fattr->uid)) != 0) 2876 goto xdr_error; 2877 if ((status = decode_attr_group(xdr, bitmap, server->nfs4_state, &fattr->gid)) != 0) 2878 goto xdr_error; 2879 if ((status = decode_attr_rdev(xdr, bitmap, &fattr->rdev)) != 0) 2880 goto xdr_error; 2881 if ((status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used)) != 0) 2882 goto xdr_error; 2883 if ((status = decode_attr_time_access(xdr, bitmap, &fattr->atime)) != 0) 2884 goto xdr_error; 2885 if ((status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime)) != 0) 2886 goto xdr_error; 2887 if ((status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime)) != 0) 2888 goto xdr_error; 2889 if ((status = verify_attr_len(xdr, savep, attrlen)) == 0) 2890 fattr->valid = NFS_ATTR_FATTR | NFS_ATTR_FATTR_V3 | NFS_ATTR_FATTR_V4; 2891 xdr_error: 2892 dprintk("%s: xdr returned %d\n", __FUNCTION__, -status); 2893 return status; 2894 } 2895 2896 2897 static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) 2898 { 2899 uint32_t *savep; 2900 uint32_t attrlen, bitmap[2]; 2901 int status; 2902 2903 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 2904 goto xdr_error; 2905 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 2906 goto xdr_error; 2907 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 2908 goto xdr_error; 2909 2910 fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ 2911 2912 if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) 2913 goto xdr_error; 2914 if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) 2915 goto xdr_error; 2916 if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) 2917 goto xdr_error; 2918 fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; 2919 if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) 2920 goto xdr_error; 2921 fsinfo->wtpref = fsinfo->wtmax; 2922 2923 status = verify_attr_len(xdr, savep, attrlen); 2924 xdr_error: 2925 dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status); 2926 return status; 2927 } 2928 2929 static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) 2930 { 2931 uint32_t *p; 2932 uint32_t len; 2933 int status; 2934 2935 status = decode_op_hdr(xdr, OP_GETFH); 2936 if (status) 2937 return status; 2938 /* Zero handle first to allow comparisons */ 2939 memset(fh, 0, sizeof(*fh)); 2940 2941 READ_BUF(4); 2942 READ32(len); 2943 if (len > NFS4_FHSIZE) 2944 return -EIO; 2945 fh->size = len; 2946 READ_BUF(len); 2947 COPYMEM(fh->data, len); 2948 return 0; 2949 } 2950 2951 static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 2952 { 2953 int status; 2954 2955 status = decode_op_hdr(xdr, OP_LINK); 2956 if (status) 2957 return status; 2958 return decode_change_info(xdr, cinfo); 2959 } 2960 2961 /* 2962 * We create the owner, so we know a proper owner.id length is 4. 2963 */ 2964 static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) 2965 { 2966 uint64_t offset, length, clientid; 2967 uint32_t *p; 2968 uint32_t namelen, type; 2969 2970 READ_BUF(32); 2971 READ64(offset); 2972 READ64(length); 2973 READ32(type); 2974 if (fl != NULL) { 2975 fl->fl_start = (loff_t)offset; 2976 fl->fl_end = fl->fl_start + (loff_t)length - 1; 2977 if (length == ~(uint64_t)0) 2978 fl->fl_end = OFFSET_MAX; 2979 fl->fl_type = F_WRLCK; 2980 if (type & 1) 2981 fl->fl_type = F_RDLCK; 2982 fl->fl_pid = 0; 2983 } 2984 READ64(clientid); 2985 READ32(namelen); 2986 READ_BUF(namelen); 2987 return -NFS4ERR_DENIED; 2988 } 2989 2990 static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) 2991 { 2992 uint32_t *p; 2993 int status; 2994 2995 status = decode_op_hdr(xdr, OP_LOCK); 2996 if (status == 0) { 2997 READ_BUF(sizeof(res->stateid.data)); 2998 COPYMEM(res->stateid.data, sizeof(res->stateid.data)); 2999 } else if (status == -NFS4ERR_DENIED) 3000 return decode_lock_denied(xdr, NULL); 3001 return status; 3002 } 3003 3004 static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) 3005 { 3006 int status; 3007 status = decode_op_hdr(xdr, OP_LOCKT); 3008 if (status == -NFS4ERR_DENIED) 3009 return decode_lock_denied(xdr, res->denied); 3010 return status; 3011 } 3012 3013 static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) 3014 { 3015 uint32_t *p; 3016 int status; 3017 3018 status = decode_op_hdr(xdr, OP_LOCKU); 3019 if (status == 0) { 3020 READ_BUF(sizeof(res->stateid.data)); 3021 COPYMEM(res->stateid.data, sizeof(res->stateid.data)); 3022 } 3023 return status; 3024 } 3025 3026 static int decode_lookup(struct xdr_stream *xdr) 3027 { 3028 return decode_op_hdr(xdr, OP_LOOKUP); 3029 } 3030 3031 /* This is too sick! */ 3032 static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) 3033 { 3034 uint32_t *p; 3035 uint32_t limit_type, nblocks, blocksize; 3036 3037 READ_BUF(12); 3038 READ32(limit_type); 3039 switch (limit_type) { 3040 case 1: 3041 READ64(*maxsize); 3042 break; 3043 case 2: 3044 READ32(nblocks); 3045 READ32(blocksize); 3046 *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 3047 } 3048 return 0; 3049 } 3050 3051 static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 3052 { 3053 uint32_t *p; 3054 uint32_t delegation_type; 3055 3056 READ_BUF(4); 3057 READ32(delegation_type); 3058 if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { 3059 res->delegation_type = 0; 3060 return 0; 3061 } 3062 READ_BUF(20); 3063 COPYMEM(res->delegation.data, sizeof(res->delegation.data)); 3064 READ32(res->do_recall); 3065 switch (delegation_type) { 3066 case NFS4_OPEN_DELEGATE_READ: 3067 res->delegation_type = FMODE_READ; 3068 break; 3069 case NFS4_OPEN_DELEGATE_WRITE: 3070 res->delegation_type = FMODE_WRITE|FMODE_READ; 3071 if (decode_space_limit(xdr, &res->maxsize) < 0) 3072 return -EIO; 3073 } 3074 return decode_ace(xdr, NULL, res->server->nfs4_state); 3075 } 3076 3077 static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 3078 { 3079 uint32_t *p; 3080 uint32_t bmlen; 3081 int status; 3082 3083 status = decode_op_hdr(xdr, OP_OPEN); 3084 if (status) 3085 return status; 3086 READ_BUF(sizeof(res->stateid.data)); 3087 COPYMEM(res->stateid.data, sizeof(res->stateid.data)); 3088 3089 decode_change_info(xdr, &res->cinfo); 3090 3091 READ_BUF(8); 3092 READ32(res->rflags); 3093 READ32(bmlen); 3094 if (bmlen > 10) 3095 goto xdr_error; 3096 3097 READ_BUF(bmlen << 2); 3098 p += bmlen; 3099 return decode_delegation(xdr, res); 3100 xdr_error: 3101 dprintk("%s: Bitmap too large! Length = %u\n", __FUNCTION__, bmlen); 3102 return -EIO; 3103 } 3104 3105 static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 3106 { 3107 uint32_t *p; 3108 int status; 3109 3110 status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 3111 if (status) 3112 return status; 3113 READ_BUF(sizeof(res->stateid.data)); 3114 COPYMEM(res->stateid.data, sizeof(res->stateid.data)); 3115 return 0; 3116 } 3117 3118 static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 3119 { 3120 uint32_t *p; 3121 int status; 3122 3123 status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 3124 if (status) 3125 return status; 3126 READ_BUF(sizeof(res->stateid.data)); 3127 COPYMEM(res->stateid.data, sizeof(res->stateid.data)); 3128 return 0; 3129 } 3130 3131 static int decode_putfh(struct xdr_stream *xdr) 3132 { 3133 return decode_op_hdr(xdr, OP_PUTFH); 3134 } 3135 3136 static int decode_putrootfh(struct xdr_stream *xdr) 3137 { 3138 return decode_op_hdr(xdr, OP_PUTROOTFH); 3139 } 3140 3141 static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) 3142 { 3143 struct kvec *iov = req->rq_rcv_buf.head; 3144 uint32_t *p; 3145 uint32_t count, eof, recvd, hdrlen; 3146 int status; 3147 3148 status = decode_op_hdr(xdr, OP_READ); 3149 if (status) 3150 return status; 3151 READ_BUF(8); 3152 READ32(eof); 3153 READ32(count); 3154 hdrlen = (u8 *) p - (u8 *) iov->iov_base; 3155 recvd = req->rq_rcv_buf.len - hdrlen; 3156 if (count > recvd) { 3157 printk(KERN_WARNING "NFS: server cheating in read reply: " 3158 "count %u > recvd %u\n", count, recvd); 3159 count = recvd; 3160 eof = 0; 3161 } 3162 xdr_read_pages(xdr, count); 3163 res->eof = eof; 3164 res->count = count; 3165 return 0; 3166 } 3167 3168 static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 3169 { 3170 struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 3171 struct page *page = *rcvbuf->pages; 3172 struct kvec *iov = rcvbuf->head; 3173 unsigned int nr, pglen = rcvbuf->page_len; 3174 uint32_t *end, *entry, *p, *kaddr; 3175 uint32_t len, attrlen; 3176 int hdrlen, recvd, status; 3177 3178 status = decode_op_hdr(xdr, OP_READDIR); 3179 if (status) 3180 return status; 3181 READ_BUF(8); 3182 COPYMEM(readdir->verifier.data, 8); 3183 dprintk("%s: verifier = 0x%x%x\n", 3184 __FUNCTION__, 3185 ((u32 *)readdir->verifier.data)[0], 3186 ((u32 *)readdir->verifier.data)[1]); 3187 3188 3189 hdrlen = (char *) p - (char *) iov->iov_base; 3190 recvd = rcvbuf->len - hdrlen; 3191 if (pglen > recvd) 3192 pglen = recvd; 3193 xdr_read_pages(xdr, pglen); 3194 3195 BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE); 3196 kaddr = p = (uint32_t *) kmap_atomic(page, KM_USER0); 3197 end = (uint32_t *) ((char *)p + pglen + readdir->pgbase); 3198 entry = p; 3199 for (nr = 0; *p++; nr++) { 3200 if (p + 3 > end) 3201 goto short_pkt; 3202 dprintk("cookie = %Lu, ", *((unsigned long long *)p)); 3203 p += 2; /* cookie */ 3204 len = ntohl(*p++); /* filename length */ 3205 if (len > NFS4_MAXNAMLEN) { 3206 printk(KERN_WARNING "NFS: giant filename in readdir (len 0x%x)\n", len); 3207 goto err_unmap; 3208 } 3209 dprintk("filename = %*s\n", len, (char *)p); 3210 p += XDR_QUADLEN(len); 3211 if (p + 1 > end) 3212 goto short_pkt; 3213 len = ntohl(*p++); /* bitmap length */ 3214 p += len; 3215 if (p + 1 > end) 3216 goto short_pkt; 3217 attrlen = XDR_QUADLEN(ntohl(*p++)); 3218 p += attrlen; /* attributes */ 3219 if (p + 2 > end) 3220 goto short_pkt; 3221 entry = p; 3222 } 3223 if (!nr && (entry[0] != 0 || entry[1] == 0)) 3224 goto short_pkt; 3225 out: 3226 kunmap_atomic(kaddr, KM_USER0); 3227 return 0; 3228 short_pkt: 3229 dprintk("%s: short packet at entry %d\n", __FUNCTION__, nr); 3230 entry[0] = entry[1] = 0; 3231 /* truncate listing ? */ 3232 if (!nr) { 3233 printk(KERN_NOTICE "NFS: readdir reply truncated!\n"); 3234 entry[1] = 1; 3235 } 3236 goto out; 3237 err_unmap: 3238 kunmap_atomic(kaddr, KM_USER0); 3239 return -errno_NFSERR_IO; 3240 } 3241 3242 static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) 3243 { 3244 struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 3245 struct kvec *iov = rcvbuf->head; 3246 int hdrlen, len, recvd; 3247 uint32_t *p; 3248 char *kaddr; 3249 int status; 3250 3251 status = decode_op_hdr(xdr, OP_READLINK); 3252 if (status) 3253 return status; 3254 3255 /* Convert length of symlink */ 3256 READ_BUF(4); 3257 READ32(len); 3258 if (len >= rcvbuf->page_len || len <= 0) { 3259 dprintk(KERN_WARNING "nfs: server returned giant symlink!\n"); 3260 return -ENAMETOOLONG; 3261 } 3262 hdrlen = (char *) xdr->p - (char *) iov->iov_base; 3263 recvd = req->rq_rcv_buf.len - hdrlen; 3264 if (recvd < len) { 3265 printk(KERN_WARNING "NFS: server cheating in readlink reply: " 3266 "count %u > recvd %u\n", len, recvd); 3267 return -EIO; 3268 } 3269 xdr_read_pages(xdr, len); 3270 /* 3271 * The XDR encode routine has set things up so that 3272 * the link text will be copied directly into the 3273 * buffer. We just have to do overflow-checking, 3274 * and and null-terminate the text (the VFS expects 3275 * null-termination). 3276 */ 3277 kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0); 3278 kaddr[len+rcvbuf->page_base] = '\0'; 3279 kunmap_atomic(kaddr, KM_USER0); 3280 return 0; 3281 } 3282 3283 static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 3284 { 3285 int status; 3286 3287 status = decode_op_hdr(xdr, OP_REMOVE); 3288 if (status) 3289 goto out; 3290 status = decode_change_info(xdr, cinfo); 3291 out: 3292 return status; 3293 } 3294 3295 static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, 3296 struct nfs4_change_info *new_cinfo) 3297 { 3298 int status; 3299 3300 status = decode_op_hdr(xdr, OP_RENAME); 3301 if (status) 3302 goto out; 3303 if ((status = decode_change_info(xdr, old_cinfo))) 3304 goto out; 3305 status = decode_change_info(xdr, new_cinfo); 3306 out: 3307 return status; 3308 } 3309 3310 static int decode_renew(struct xdr_stream *xdr) 3311 { 3312 return decode_op_hdr(xdr, OP_RENEW); 3313 } 3314 3315 static int 3316 decode_restorefh(struct xdr_stream *xdr) 3317 { 3318 return decode_op_hdr(xdr, OP_RESTOREFH); 3319 } 3320 3321 static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, 3322 size_t *acl_len) 3323 { 3324 uint32_t *savep; 3325 uint32_t attrlen, 3326 bitmap[2] = {0}; 3327 struct kvec *iov = req->rq_rcv_buf.head; 3328 int status; 3329 3330 *acl_len = 0; 3331 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 3332 goto out; 3333 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 3334 goto out; 3335 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 3336 goto out; 3337 3338 if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) 3339 return -EIO; 3340 if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { 3341 int hdrlen, recvd; 3342 3343 /* We ignore &savep and don't do consistency checks on 3344 * the attr length. Let userspace figure it out.... */ 3345 hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; 3346 recvd = req->rq_rcv_buf.len - hdrlen; 3347 if (attrlen > recvd) { 3348 printk(KERN_WARNING "NFS: server cheating in getattr" 3349 " acl reply: attrlen %u > recvd %u\n", 3350 attrlen, recvd); 3351 return -EINVAL; 3352 } 3353 if (attrlen <= *acl_len) 3354 xdr_read_pages(xdr, attrlen); 3355 *acl_len = attrlen; 3356 } else 3357 status = -EOPNOTSUPP; 3358 3359 out: 3360 return status; 3361 } 3362 3363 static int 3364 decode_savefh(struct xdr_stream *xdr) 3365 { 3366 return decode_op_hdr(xdr, OP_SAVEFH); 3367 } 3368 3369 static int decode_setattr(struct xdr_stream *xdr, struct nfs_setattrres *res) 3370 { 3371 uint32_t *p; 3372 uint32_t bmlen; 3373 int status; 3374 3375 3376 status = decode_op_hdr(xdr, OP_SETATTR); 3377 if (status) 3378 return status; 3379 READ_BUF(4); 3380 READ32(bmlen); 3381 READ_BUF(bmlen << 2); 3382 return 0; 3383 } 3384 3385 static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_client *clp) 3386 { 3387 uint32_t *p; 3388 uint32_t opnum; 3389 int32_t nfserr; 3390 3391 READ_BUF(8); 3392 READ32(opnum); 3393 if (opnum != OP_SETCLIENTID) { 3394 printk(KERN_NOTICE 3395 "nfs4_decode_setclientid: Server returned operation" 3396 " %d\n", opnum); 3397 return -EIO; 3398 } 3399 READ32(nfserr); 3400 if (nfserr == NFS_OK) { 3401 READ_BUF(8 + sizeof(clp->cl_confirm.data)); 3402 READ64(clp->cl_clientid); 3403 COPYMEM(clp->cl_confirm.data, sizeof(clp->cl_confirm.data)); 3404 } else if (nfserr == NFSERR_CLID_INUSE) { 3405 uint32_t len; 3406 3407 /* skip netid string */ 3408 READ_BUF(4); 3409 READ32(len); 3410 READ_BUF(len); 3411 3412 /* skip uaddr string */ 3413 READ_BUF(4); 3414 READ32(len); 3415 READ_BUF(len); 3416 return -NFSERR_CLID_INUSE; 3417 } else 3418 return -nfs_stat_to_errno(nfserr); 3419 3420 return 0; 3421 } 3422 3423 static int decode_setclientid_confirm(struct xdr_stream *xdr) 3424 { 3425 return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); 3426 } 3427 3428 static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) 3429 { 3430 uint32_t *p; 3431 int status; 3432 3433 status = decode_op_hdr(xdr, OP_WRITE); 3434 if (status) 3435 return status; 3436 3437 READ_BUF(16); 3438 READ32(res->count); 3439 READ32(res->verf->committed); 3440 COPYMEM(res->verf->verifier, 8); 3441 return 0; 3442 } 3443 3444 static int decode_delegreturn(struct xdr_stream *xdr) 3445 { 3446 return decode_op_hdr(xdr, OP_DELEGRETURN); 3447 } 3448 3449 /* 3450 * Decode OPEN_DOWNGRADE response 3451 */ 3452 static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_closeres *res) 3453 { 3454 struct xdr_stream xdr; 3455 struct compound_hdr hdr; 3456 int status; 3457 3458 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 3459 status = decode_compound_hdr(&xdr, &hdr); 3460 if (status) 3461 goto out; 3462 status = decode_putfh(&xdr); 3463 if (status) 3464 goto out; 3465 status = decode_open_downgrade(&xdr, res); 3466 if (status != 0) 3467 goto out; 3468 decode_getfattr(&xdr, res->fattr, res->server); 3469 out: 3470 return status; 3471 } 3472 3473 /* 3474 * END OF "GENERIC" DECODE ROUTINES. 3475 */ 3476 3477 /* 3478 * Decode ACCESS response 3479 */ 3480 static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_accessres *res) 3481 { 3482 struct xdr_stream xdr; 3483 struct compound_hdr hdr; 3484 int status; 3485 3486 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 3487 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 3488 goto out; 3489 if ((status = decode_putfh(&xdr)) == 0) 3490 status = decode_access(&xdr, res); 3491 out: 3492 return status; 3493 } 3494 3495 /* 3496 * Decode LOOKUP response 3497 */ 3498 static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_lookup_res *res) 3499 { 3500 struct xdr_stream xdr; 3501 struct compound_hdr hdr; 3502 int status; 3503 3504 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 3505 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 3506 goto out; 3507 if ((status = decode_putfh(&xdr)) != 0) 3508 goto out; 3509 if ((status = decode_lookup(&xdr)) != 0) 3510 goto out; 3511 if ((status = decode_getfh(&xdr, res->fh)) != 0) 3512 goto out; 3513 status = decode_getfattr(&xdr, res->fattr, res->server); 3514 out: 3515 return status; 3516 } 3517 3518 /* 3519 * Decode LOOKUP_ROOT response 3520 */ 3521 static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_lookup_res *res) 3522 { 3523 struct xdr_stream xdr; 3524 struct compound_hdr hdr; 3525 int status; 3526 3527 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 3528 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 3529 goto out; 3530 if ((status = decode_putrootfh(&xdr)) != 0) 3531 goto out; 3532 if ((status = decode_getfh(&xdr, res->fh)) == 0) 3533 status = decode_getfattr(&xdr, res->fattr, res->server); 3534 out: 3535 return status; 3536 } 3537 3538 /* 3539 * Decode REMOVE response 3540 */ 3541 static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_remove_res *res) 3542 { 3543 struct xdr_stream xdr; 3544 struct compound_hdr hdr; 3545 int status; 3546 3547 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 3548 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 3549 goto out; 3550 if ((status = decode_putfh(&xdr)) != 0) 3551 goto out; 3552 if ((status = decode_remove(&xdr, &res->cinfo)) != 0) 3553 goto out; 3554 decode_getfattr(&xdr, res->dir_attr, res->server); 3555 out: 3556 return status; 3557 } 3558 3559 /* 3560 * Decode RENAME response 3561 */ 3562 static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_rename_res *res) 3563 { 3564 struct xdr_stream xdr; 3565 struct compound_hdr hdr; 3566 int status; 3567 3568 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 3569 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 3570 goto out; 3571 if ((status = decode_putfh(&xdr)) != 0) 3572 goto out; 3573 if ((status = decode_savefh(&xdr)) != 0) 3574 goto out; 3575 if ((status = decode_putfh(&xdr)) != 0) 3576 goto out; 3577 if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0) 3578 goto out; 3579 /* Current FH is target directory */ 3580 if (decode_getfattr(&xdr, res->new_fattr, res->server) != 0) 3581 goto out; 3582 if ((status = decode_restorefh(&xdr)) != 0) 3583 goto out; 3584 decode_getfattr(&xdr, res->old_fattr, res->server); 3585 out: 3586 return status; 3587 } 3588 3589 /* 3590 * Decode LINK response 3591 */ 3592 static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_link_res *res) 3593 { 3594 struct xdr_stream xdr; 3595 struct compound_hdr hdr; 3596 int status; 3597 3598 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 3599 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 3600 goto out; 3601 if ((status = decode_putfh(&xdr)) != 0) 3602 goto out; 3603 if ((status = decode_savefh(&xdr)) != 0) 3604 goto out; 3605 if ((status = decode_putfh(&xdr)) != 0) 3606 goto out; 3607 if ((status = decode_link(&xdr, &res->cinfo)) != 0) 3608 goto out; 3609 /* 3610 * Note order: OP_LINK leaves the directory as the current 3611 * filehandle. 3612 */ 3613 if (decode_getfattr(&xdr, res->dir_attr, res->server) != 0) 3614 goto out; 3615 if ((status = decode_restorefh(&xdr)) != 0) 3616 goto out; 3617 decode_getfattr(&xdr, res->fattr, res->server); 3618 out: 3619 return status; 3620 } 3621 3622 /* 3623 * Decode CREATE response 3624 */ 3625 static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_create_res *res) 3626 { 3627 struct xdr_stream xdr; 3628 struct compound_hdr hdr; 3629 int status; 3630 3631 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 3632 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 3633 goto out; 3634 if ((status = decode_putfh(&xdr)) != 0) 3635 goto out; 3636 if ((status = decode_savefh(&xdr)) != 0) 3637 goto out; 3638 if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0) 3639 goto out; 3640 if ((status = decode_getfh(&xdr, res->fh)) != 0) 3641 goto out; 3642 if (decode_getfattr(&xdr, res->fattr, res->server) != 0) 3643 goto out; 3644 if ((status = decode_restorefh(&xdr)) != 0) 3645 goto out; 3646 decode_getfattr(&xdr, res->dir_fattr, res->server); 3647 out: 3648 return status; 3649 } 3650 3651 /* 3652 * Decode SYMLINK response 3653 */ 3654 static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_create_res *res) 3655 { 3656 return nfs4_xdr_dec_create(rqstp, p, res); 3657 } 3658 3659 /* 3660 * Decode GETATTR response 3661 */ 3662 static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_getattr_res *res) 3663 { 3664 struct xdr_stream xdr; 3665 struct compound_hdr hdr; 3666 int status; 3667 3668 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 3669 status = decode_compound_hdr(&xdr, &hdr); 3670 if (status) 3671 goto out; 3672 status = decode_putfh(&xdr); 3673 if (status) 3674 goto out; 3675 status = decode_getfattr(&xdr, res->fattr, res->server); 3676 out: 3677 return status; 3678 3679 } 3680 3681 /* 3682 * Encode an SETACL request 3683 */ 3684 static int 3685 nfs4_xdr_enc_setacl(struct rpc_rqst *req, uint32_t *p, struct nfs_setaclargs *args) 3686 { 3687 struct xdr_stream xdr; 3688 struct compound_hdr hdr = { 3689 .nops = 2, 3690 }; 3691 int status; 3692 3693 xdr_init_encode(&xdr, &req->rq_snd_buf, p); 3694 encode_compound_hdr(&xdr, &hdr); 3695 status = encode_putfh(&xdr, args->fh); 3696 if (status) 3697 goto out; 3698 status = encode_setacl(&xdr, args); 3699 out: 3700 return status; 3701 } 3702 /* 3703 * Decode SETACL response 3704 */ 3705 static int 3706 nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, uint32_t *p, void *res) 3707 { 3708 struct xdr_stream xdr; 3709 struct compound_hdr hdr; 3710 int status; 3711 3712 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 3713 status = decode_compound_hdr(&xdr, &hdr); 3714 if (status) 3715 goto out; 3716 status = decode_putfh(&xdr); 3717 if (status) 3718 goto out; 3719 status = decode_setattr(&xdr, res); 3720 out: 3721 return status; 3722 } 3723 3724 /* 3725 * Decode GETACL response 3726 */ 3727 static int 3728 nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, uint32_t *p, size_t *acl_len) 3729 { 3730 struct xdr_stream xdr; 3731 struct compound_hdr hdr; 3732 int status; 3733 3734 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 3735 status = decode_compound_hdr(&xdr, &hdr); 3736 if (status) 3737 goto out; 3738 status = decode_putfh(&xdr); 3739 if (status) 3740 goto out; 3741 status = decode_getacl(&xdr, rqstp, acl_len); 3742 3743 out: 3744 return status; 3745 } 3746 3747 /* 3748 * Decode CLOSE response 3749 */ 3750 static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_closeres *res) 3751 { 3752 struct xdr_stream xdr; 3753 struct compound_hdr hdr; 3754 int status; 3755 3756 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 3757 status = decode_compound_hdr(&xdr, &hdr); 3758 if (status) 3759 goto out; 3760 status = decode_putfh(&xdr); 3761 if (status) 3762 goto out; 3763 status = decode_close(&xdr, res); 3764 if (status != 0) 3765 goto out; 3766 /* 3767 * Note: Server may do delete on close for this file 3768 * in which case the getattr call will fail with 3769 * an ESTALE error. Shouldn't be a problem, 3770 * though, since fattr->valid will remain unset. 3771 */ 3772 decode_getfattr(&xdr, res->fattr, res->server); 3773 out: 3774 return status; 3775 } 3776 3777 /* 3778 * Decode OPEN response 3779 */ 3780 static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_openres *res) 3781 { 3782 struct xdr_stream xdr; 3783 struct compound_hdr hdr; 3784 int status; 3785 3786 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 3787 status = decode_compound_hdr(&xdr, &hdr); 3788 if (status) 3789 goto out; 3790 status = decode_putfh(&xdr); 3791 if (status) 3792 goto out; 3793 status = decode_savefh(&xdr); 3794 if (status) 3795 goto out; 3796 status = decode_open(&xdr, res); 3797 if (status) 3798 goto out; 3799 status = decode_getfh(&xdr, &res->fh); 3800 if (status) 3801 goto out; 3802 if (decode_getfattr(&xdr, res->f_attr, res->server) != 0) 3803 goto out; 3804 if ((status = decode_restorefh(&xdr)) != 0) 3805 goto out; 3806 decode_getfattr(&xdr, res->dir_attr, res->server); 3807 out: 3808 return status; 3809 } 3810 3811 /* 3812 * Decode OPEN_CONFIRM response 3813 */ 3814 static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_open_confirmres *res) 3815 { 3816 struct xdr_stream xdr; 3817 struct compound_hdr hdr; 3818 int status; 3819 3820 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 3821 status = decode_compound_hdr(&xdr, &hdr); 3822 if (status) 3823 goto out; 3824 status = decode_putfh(&xdr); 3825 if (status) 3826 goto out; 3827 status = decode_open_confirm(&xdr, res); 3828 out: 3829 return status; 3830 } 3831 3832 /* 3833 * Decode OPEN response 3834 */ 3835 static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_openres *res) 3836 { 3837 struct xdr_stream xdr; 3838 struct compound_hdr hdr; 3839 int status; 3840 3841 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 3842 status = decode_compound_hdr(&xdr, &hdr); 3843 if (status) 3844 goto out; 3845 status = decode_putfh(&xdr); 3846 if (status) 3847 goto out; 3848 status = decode_open(&xdr, res); 3849 if (status) 3850 goto out; 3851 decode_getfattr(&xdr, res->f_attr, res->server); 3852 out: 3853 return status; 3854 } 3855 3856 /* 3857 * Decode SETATTR response 3858 */ 3859 static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_setattrres *res) 3860 { 3861 struct xdr_stream xdr; 3862 struct compound_hdr hdr; 3863 int status; 3864 3865 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 3866 status = decode_compound_hdr(&xdr, &hdr); 3867 if (status) 3868 goto out; 3869 status = decode_putfh(&xdr); 3870 if (status) 3871 goto out; 3872 status = decode_setattr(&xdr, res); 3873 if (status) 3874 goto out; 3875 status = decode_getfattr(&xdr, res->fattr, res->server); 3876 if (status == NFS4ERR_DELAY) 3877 status = 0; 3878 out: 3879 return status; 3880 } 3881 3882 /* 3883 * Decode LOCK response 3884 */ 3885 static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_lock_res *res) 3886 { 3887 struct xdr_stream xdr; 3888 struct compound_hdr hdr; 3889 int status; 3890 3891 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 3892 status = decode_compound_hdr(&xdr, &hdr); 3893 if (status) 3894 goto out; 3895 status = decode_putfh(&xdr); 3896 if (status) 3897 goto out; 3898 status = decode_lock(&xdr, res); 3899 out: 3900 return status; 3901 } 3902 3903 /* 3904 * Decode LOCKT response 3905 */ 3906 static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_lockt_res *res) 3907 { 3908 struct xdr_stream xdr; 3909 struct compound_hdr hdr; 3910 int status; 3911 3912 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 3913 status = decode_compound_hdr(&xdr, &hdr); 3914 if (status) 3915 goto out; 3916 status = decode_putfh(&xdr); 3917 if (status) 3918 goto out; 3919 status = decode_lockt(&xdr, res); 3920 out: 3921 return status; 3922 } 3923 3924 /* 3925 * Decode LOCKU response 3926 */ 3927 static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_locku_res *res) 3928 { 3929 struct xdr_stream xdr; 3930 struct compound_hdr hdr; 3931 int status; 3932 3933 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 3934 status = decode_compound_hdr(&xdr, &hdr); 3935 if (status) 3936 goto out; 3937 status = decode_putfh(&xdr); 3938 if (status) 3939 goto out; 3940 status = decode_locku(&xdr, res); 3941 out: 3942 return status; 3943 } 3944 3945 /* 3946 * Decode READLINK response 3947 */ 3948 static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, uint32_t *p, void *res) 3949 { 3950 struct xdr_stream xdr; 3951 struct compound_hdr hdr; 3952 int status; 3953 3954 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 3955 status = decode_compound_hdr(&xdr, &hdr); 3956 if (status) 3957 goto out; 3958 status = decode_putfh(&xdr); 3959 if (status) 3960 goto out; 3961 status = decode_readlink(&xdr, rqstp); 3962 out: 3963 return status; 3964 } 3965 3966 /* 3967 * Decode READDIR response 3968 */ 3969 static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_readdir_res *res) 3970 { 3971 struct xdr_stream xdr; 3972 struct compound_hdr hdr; 3973 int status; 3974 3975 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 3976 status = decode_compound_hdr(&xdr, &hdr); 3977 if (status) 3978 goto out; 3979 status = decode_putfh(&xdr); 3980 if (status) 3981 goto out; 3982 status = decode_readdir(&xdr, rqstp, res); 3983 out: 3984 return status; 3985 } 3986 3987 /* 3988 * Decode Read response 3989 */ 3990 static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_readres *res) 3991 { 3992 struct xdr_stream xdr; 3993 struct compound_hdr hdr; 3994 int status; 3995 3996 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 3997 status = decode_compound_hdr(&xdr, &hdr); 3998 if (status) 3999 goto out; 4000 status = decode_putfh(&xdr); 4001 if (status) 4002 goto out; 4003 status = decode_read(&xdr, rqstp, res); 4004 if (!status) 4005 status = res->count; 4006 out: 4007 return status; 4008 } 4009 4010 /* 4011 * Decode WRITE response 4012 */ 4013 static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_writeres *res) 4014 { 4015 struct xdr_stream xdr; 4016 struct compound_hdr hdr; 4017 int status; 4018 4019 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 4020 status = decode_compound_hdr(&xdr, &hdr); 4021 if (status) 4022 goto out; 4023 status = decode_putfh(&xdr); 4024 if (status) 4025 goto out; 4026 status = decode_write(&xdr, res); 4027 if (status) 4028 goto out; 4029 decode_getfattr(&xdr, res->fattr, res->server); 4030 if (!status) 4031 status = res->count; 4032 out: 4033 return status; 4034 } 4035 4036 /* 4037 * Decode COMMIT response 4038 */ 4039 static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_writeres *res) 4040 { 4041 struct xdr_stream xdr; 4042 struct compound_hdr hdr; 4043 int status; 4044 4045 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 4046 status = decode_compound_hdr(&xdr, &hdr); 4047 if (status) 4048 goto out; 4049 status = decode_putfh(&xdr); 4050 if (status) 4051 goto out; 4052 status = decode_commit(&xdr, res); 4053 if (status) 4054 goto out; 4055 decode_getfattr(&xdr, res->fattr, res->server); 4056 out: 4057 return status; 4058 } 4059 4060 /* 4061 * FSINFO request 4062 */ 4063 static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, uint32_t *p, struct nfs_fsinfo *fsinfo) 4064 { 4065 struct xdr_stream xdr; 4066 struct compound_hdr hdr; 4067 int status; 4068 4069 xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 4070 status = decode_compound_hdr(&xdr, &hdr); 4071 if (!status) 4072 status = decode_putfh(&xdr); 4073 if (!status) 4074 status = decode_fsinfo(&xdr, fsinfo); 4075 if (!status) 4076 status = -nfs_stat_to_errno(hdr.status); 4077 return status; 4078 } 4079 4080 /* 4081 * PATHCONF request 4082 */ 4083 static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, uint32_t *p, struct nfs_pathconf *pathconf) 4084 { 4085 struct xdr_stream xdr; 4086 struct compound_hdr hdr; 4087 int status; 4088 4089 xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 4090 status = decode_compound_hdr(&xdr, &hdr); 4091 if (!status) 4092 status = decode_putfh(&xdr); 4093 if (!status) 4094 status = decode_pathconf(&xdr, pathconf); 4095 return status; 4096 } 4097 4098 /* 4099 * STATFS request 4100 */ 4101 static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, uint32_t *p, struct nfs_fsstat *fsstat) 4102 { 4103 struct xdr_stream xdr; 4104 struct compound_hdr hdr; 4105 int status; 4106 4107 xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 4108 status = decode_compound_hdr(&xdr, &hdr); 4109 if (!status) 4110 status = decode_putfh(&xdr); 4111 if (!status) 4112 status = decode_statfs(&xdr, fsstat); 4113 return status; 4114 } 4115 4116 /* 4117 * GETATTR_BITMAP request 4118 */ 4119 static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, uint32_t *p, struct nfs4_server_caps_res *res) 4120 { 4121 struct xdr_stream xdr; 4122 struct compound_hdr hdr; 4123 int status; 4124 4125 xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 4126 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 4127 goto out; 4128 if ((status = decode_putfh(&xdr)) != 0) 4129 goto out; 4130 status = decode_server_caps(&xdr, res); 4131 out: 4132 return status; 4133 } 4134 4135 /* 4136 * Decode RENEW response 4137 */ 4138 static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, uint32_t *p, void *dummy) 4139 { 4140 struct xdr_stream xdr; 4141 struct compound_hdr hdr; 4142 int status; 4143 4144 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 4145 status = decode_compound_hdr(&xdr, &hdr); 4146 if (!status) 4147 status = decode_renew(&xdr); 4148 return status; 4149 } 4150 4151 /* 4152 * a SETCLIENTID request 4153 */ 4154 static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, uint32_t *p, 4155 struct nfs4_client *clp) 4156 { 4157 struct xdr_stream xdr; 4158 struct compound_hdr hdr; 4159 int status; 4160 4161 xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 4162 status = decode_compound_hdr(&xdr, &hdr); 4163 if (!status) 4164 status = decode_setclientid(&xdr, clp); 4165 if (!status) 4166 status = -nfs_stat_to_errno(hdr.status); 4167 return status; 4168 } 4169 4170 /* 4171 * a SETCLIENTID_CONFIRM request 4172 */ 4173 static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, uint32_t *p, struct nfs_fsinfo *fsinfo) 4174 { 4175 struct xdr_stream xdr; 4176 struct compound_hdr hdr; 4177 int status; 4178 4179 xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 4180 status = decode_compound_hdr(&xdr, &hdr); 4181 if (!status) 4182 status = decode_setclientid_confirm(&xdr); 4183 if (!status) 4184 status = decode_putrootfh(&xdr); 4185 if (!status) 4186 status = decode_fsinfo(&xdr, fsinfo); 4187 if (!status) 4188 status = -nfs_stat_to_errno(hdr.status); 4189 return status; 4190 } 4191 4192 /* 4193 * DELEGRETURN request 4194 */ 4195 static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_delegreturnres *res) 4196 { 4197 struct xdr_stream xdr; 4198 struct compound_hdr hdr; 4199 int status; 4200 4201 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 4202 status = decode_compound_hdr(&xdr, &hdr); 4203 if (status != 0) 4204 goto out; 4205 status = decode_putfh(&xdr); 4206 if (status != 0) 4207 goto out; 4208 status = decode_delegreturn(&xdr); 4209 decode_getfattr(&xdr, res->fattr, res->server); 4210 out: 4211 return status; 4212 } 4213 4214 uint32_t *nfs4_decode_dirent(uint32_t *p, struct nfs_entry *entry, int plus) 4215 { 4216 uint32_t bitmap[2] = {0}; 4217 uint32_t len; 4218 4219 if (!*p++) { 4220 if (!*p) 4221 return ERR_PTR(-EAGAIN); 4222 entry->eof = 1; 4223 return ERR_PTR(-EBADCOOKIE); 4224 } 4225 4226 entry->prev_cookie = entry->cookie; 4227 p = xdr_decode_hyper(p, &entry->cookie); 4228 entry->len = ntohl(*p++); 4229 entry->name = (const char *) p; 4230 p += XDR_QUADLEN(entry->len); 4231 4232 /* 4233 * In case the server doesn't return an inode number, 4234 * we fake one here. (We don't use inode number 0, 4235 * since glibc seems to choke on it...) 4236 */ 4237 entry->ino = 1; 4238 4239 len = ntohl(*p++); /* bitmap length */ 4240 if (len-- > 0) { 4241 bitmap[0] = ntohl(*p++); 4242 if (len-- > 0) { 4243 bitmap[1] = ntohl(*p++); 4244 p += len; 4245 } 4246 } 4247 len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */ 4248 if (len > 0) { 4249 if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) { 4250 bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; 4251 /* Ignore the return value of rdattr_error for now */ 4252 p++; 4253 len--; 4254 } 4255 if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID) 4256 xdr_decode_hyper(p, &entry->ino); 4257 else if (bitmap[0] == FATTR4_WORD0_FILEID) 4258 xdr_decode_hyper(p, &entry->ino); 4259 p += len; 4260 } 4261 4262 entry->eof = !p[0] && p[1]; 4263 return p; 4264 } 4265 4266 /* 4267 * We need to translate between nfs status return values and 4268 * the local errno values which may not be the same. 4269 */ 4270 static struct { 4271 int stat; 4272 int errno; 4273 } nfs_errtbl[] = { 4274 { NFS4_OK, 0 }, 4275 { NFS4ERR_PERM, EPERM }, 4276 { NFS4ERR_NOENT, ENOENT }, 4277 { NFS4ERR_IO, errno_NFSERR_IO }, 4278 { NFS4ERR_NXIO, ENXIO }, 4279 { NFS4ERR_ACCESS, EACCES }, 4280 { NFS4ERR_EXIST, EEXIST }, 4281 { NFS4ERR_XDEV, EXDEV }, 4282 { NFS4ERR_NOTDIR, ENOTDIR }, 4283 { NFS4ERR_ISDIR, EISDIR }, 4284 { NFS4ERR_INVAL, EINVAL }, 4285 { NFS4ERR_FBIG, EFBIG }, 4286 { NFS4ERR_NOSPC, ENOSPC }, 4287 { NFS4ERR_ROFS, EROFS }, 4288 { NFS4ERR_MLINK, EMLINK }, 4289 { NFS4ERR_NAMETOOLONG, ENAMETOOLONG }, 4290 { NFS4ERR_NOTEMPTY, ENOTEMPTY }, 4291 { NFS4ERR_DQUOT, EDQUOT }, 4292 { NFS4ERR_STALE, ESTALE }, 4293 { NFS4ERR_BADHANDLE, EBADHANDLE }, 4294 { NFS4ERR_BADOWNER, EINVAL }, 4295 { NFS4ERR_BADNAME, EINVAL }, 4296 { NFS4ERR_BAD_COOKIE, EBADCOOKIE }, 4297 { NFS4ERR_NOTSUPP, ENOTSUPP }, 4298 { NFS4ERR_TOOSMALL, ETOOSMALL }, 4299 { NFS4ERR_SERVERFAULT, ESERVERFAULT }, 4300 { NFS4ERR_BADTYPE, EBADTYPE }, 4301 { NFS4ERR_LOCKED, EAGAIN }, 4302 { NFS4ERR_RESOURCE, EREMOTEIO }, 4303 { NFS4ERR_SYMLINK, ELOOP }, 4304 { NFS4ERR_OP_ILLEGAL, EOPNOTSUPP }, 4305 { NFS4ERR_DEADLOCK, EDEADLK }, 4306 { NFS4ERR_WRONGSEC, EPERM }, /* FIXME: this needs 4307 * to be handled by a 4308 * middle-layer. 4309 */ 4310 { -1, EIO } 4311 }; 4312 4313 /* 4314 * Convert an NFS error code to a local one. 4315 * This one is used jointly by NFSv2 and NFSv3. 4316 */ 4317 static int 4318 nfs_stat_to_errno(int stat) 4319 { 4320 int i; 4321 for (i = 0; nfs_errtbl[i].stat != -1; i++) { 4322 if (nfs_errtbl[i].stat == stat) 4323 return nfs_errtbl[i].errno; 4324 } 4325 if (stat <= 10000 || stat > 10100) { 4326 /* The server is looney tunes. */ 4327 return ESERVERFAULT; 4328 } 4329 /* If we cannot translate the error, the recovery routines should 4330 * handle it. 4331 * Note: remaining NFSv4 error codes have values > 10000, so should 4332 * not conflict with native Linux error codes. 4333 */ 4334 return stat; 4335 } 4336 4337 #ifndef MAX 4338 # define MAX(a, b) (((a) > (b))? (a) : (b)) 4339 #endif 4340 4341 #define PROC(proc, argtype, restype) \ 4342 [NFSPROC4_CLNT_##proc] = { \ 4343 .p_proc = NFSPROC4_COMPOUND, \ 4344 .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \ 4345 .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \ 4346 .p_bufsiz = MAX(NFS4_##argtype##_sz,NFS4_##restype##_sz) << 2, \ 4347 } 4348 4349 struct rpc_procinfo nfs4_procedures[] = { 4350 PROC(READ, enc_read, dec_read), 4351 PROC(WRITE, enc_write, dec_write), 4352 PROC(COMMIT, enc_commit, dec_commit), 4353 PROC(OPEN, enc_open, dec_open), 4354 PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), 4355 PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), 4356 PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), 4357 PROC(CLOSE, enc_close, dec_close), 4358 PROC(SETATTR, enc_setattr, dec_setattr), 4359 PROC(FSINFO, enc_fsinfo, dec_fsinfo), 4360 PROC(RENEW, enc_renew, dec_renew), 4361 PROC(SETCLIENTID, enc_setclientid, dec_setclientid), 4362 PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), 4363 PROC(LOCK, enc_lock, dec_lock), 4364 PROC(LOCKT, enc_lockt, dec_lockt), 4365 PROC(LOCKU, enc_locku, dec_locku), 4366 PROC(ACCESS, enc_access, dec_access), 4367 PROC(GETATTR, enc_getattr, dec_getattr), 4368 PROC(LOOKUP, enc_lookup, dec_lookup), 4369 PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), 4370 PROC(REMOVE, enc_remove, dec_remove), 4371 PROC(RENAME, enc_rename, dec_rename), 4372 PROC(LINK, enc_link, dec_link), 4373 PROC(SYMLINK, enc_symlink, dec_symlink), 4374 PROC(CREATE, enc_create, dec_create), 4375 PROC(PATHCONF, enc_pathconf, dec_pathconf), 4376 PROC(STATFS, enc_statfs, dec_statfs), 4377 PROC(READLINK, enc_readlink, dec_readlink), 4378 PROC(READDIR, enc_readdir, dec_readdir), 4379 PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), 4380 PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), 4381 PROC(GETACL, enc_getacl, dec_getacl), 4382 PROC(SETACL, enc_setacl, dec_setacl), 4383 }; 4384 4385 struct rpc_version nfs_version4 = { 4386 .number = 4, 4387 .nrprocs = sizeof(nfs4_procedures)/sizeof(nfs4_procedures[0]), 4388 .procs = nfs4_procedures 4389 }; 4390 4391 /* 4392 * Local variables: 4393 * c-basic-offset: 8 4394 * End: 4395 */ 4396