Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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> |
Trond Myklebust | 4ce7971 | 2005-06-22 17:16:21 +0000 | [diff] [blame] | 54 | #include "nfs4_fs.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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)) |
J. Bruce Fields | 9692820 | 2005-06-22 17:16:22 +0000 | [diff] [blame] | 86 | #define nfs4_fattr_bitmap_maxsz 3 |
| 87 | #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 88 | #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2)) |
| 89 | #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2)) |
J. Bruce Fields | 9692820 | 2005-06-22 17:16:22 +0000 | [diff] [blame] | 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) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 96 | #define encode_savefh_maxsz (op_encode_hdr_maxsz) |
| 97 | #define decode_savefh_maxsz (op_decode_hdr_maxsz) |
Trond Myklebust | 56ae19f | 2005-10-27 22:12:40 -0400 | [diff] [blame] | 98 | #define encode_restorefh_maxsz (op_encode_hdr_maxsz) |
| 99 | #define decode_restorefh_maxsz (op_decode_hdr_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 + \ |
J. Bruce Fields | 9692820 | 2005-06-22 17:16:22 +0000 | [diff] [blame] | 132 | nfs4_fattr_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 133 | #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8) |
| 134 | #define encode_create_maxsz (op_encode_hdr_maxsz + \ |
| 135 | 2 + nfs4_name_maxsz + \ |
J. Bruce Fields | 9692820 | 2005-06-22 17:16:22 +0000 | [diff] [blame] | 136 | nfs4_fattr_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ |
| 164 | decode_putfh_maxsz + \ |
| 165 | op_decode_hdr_maxsz + 4) |
| 166 | #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ |
| 167 | encode_putfh_maxsz + \ |
| 168 | op_encode_hdr_maxsz + 3) |
| 169 | #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ |
| 170 | decode_putfh_maxsz + \ |
| 171 | op_decode_hdr_maxsz + 2) |
| 172 | #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ |
| 173 | encode_putfh_maxsz + \ |
| 174 | op_encode_hdr_maxsz + \ |
| 175 | 13 + 3 + 2 + 64 + \ |
| 176 | encode_getattr_maxsz + \ |
| 177 | encode_getfh_maxsz) |
| 178 | #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ |
| 179 | decode_putfh_maxsz + \ |
| 180 | op_decode_hdr_maxsz + 4 + 5 + 2 + 3 + \ |
| 181 | decode_getattr_maxsz + \ |
| 182 | decode_getfh_maxsz) |
| 183 | #define NFS4_enc_open_confirm_sz \ |
| 184 | (compound_encode_hdr_maxsz + \ |
| 185 | encode_putfh_maxsz + \ |
| 186 | op_encode_hdr_maxsz + 5) |
| 187 | #define NFS4_dec_open_confirm_sz (compound_decode_hdr_maxsz + \ |
| 188 | decode_putfh_maxsz + \ |
| 189 | op_decode_hdr_maxsz + 4) |
| 190 | #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ |
| 191 | encode_putfh_maxsz + \ |
| 192 | op_encode_hdr_maxsz + \ |
| 193 | 11) |
| 194 | #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ |
| 195 | decode_putfh_maxsz + \ |
| 196 | op_decode_hdr_maxsz + \ |
| 197 | 4 + 5 + 2 + 3) |
| 198 | #define NFS4_enc_open_downgrade_sz \ |
| 199 | (compound_encode_hdr_maxsz + \ |
| 200 | encode_putfh_maxsz + \ |
Trond Myklebust | 516a6af | 2005-10-27 22:12:41 -0400 | [diff] [blame] | 201 | op_encode_hdr_maxsz + 7 + \ |
| 202 | encode_getattr_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 203 | #define NFS4_dec_open_downgrade_sz \ |
| 204 | (compound_decode_hdr_maxsz + \ |
| 205 | decode_putfh_maxsz + \ |
Trond Myklebust | 516a6af | 2005-10-27 22:12:41 -0400 | [diff] [blame] | 206 | op_decode_hdr_maxsz + 4 + \ |
| 207 | decode_getattr_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 208 | #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ |
| 209 | encode_putfh_maxsz + \ |
Trond Myklebust | 516a6af | 2005-10-27 22:12:41 -0400 | [diff] [blame] | 210 | op_encode_hdr_maxsz + 5 + \ |
| 211 | encode_getattr_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 212 | #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ |
| 213 | decode_putfh_maxsz + \ |
Trond Myklebust | 516a6af | 2005-10-27 22:12:41 -0400 | [diff] [blame] | 214 | op_decode_hdr_maxsz + 4 + \ |
| 215 | decode_getattr_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 216 | #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ |
| 217 | encode_putfh_maxsz + \ |
| 218 | op_encode_hdr_maxsz + 4 + \ |
J. Bruce Fields | 9692820 | 2005-06-22 17:16:22 +0000 | [diff] [blame] | 219 | nfs4_fattr_maxsz + \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 220 | encode_getattr_maxsz) |
| 221 | #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ |
| 222 | decode_putfh_maxsz + \ |
| 223 | op_decode_hdr_maxsz + 3) |
| 224 | #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ |
| 225 | encode_putfh_maxsz + \ |
| 226 | encode_fsinfo_maxsz) |
| 227 | #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ |
| 228 | decode_putfh_maxsz + \ |
| 229 | decode_fsinfo_maxsz) |
| 230 | #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ |
| 231 | encode_renew_maxsz) |
| 232 | #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ |
| 233 | decode_renew_maxsz) |
| 234 | #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ |
| 235 | encode_setclientid_maxsz) |
| 236 | #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ |
| 237 | decode_setclientid_maxsz) |
| 238 | #define NFS4_enc_setclientid_confirm_sz \ |
| 239 | (compound_encode_hdr_maxsz + \ |
| 240 | encode_setclientid_confirm_maxsz + \ |
| 241 | encode_putrootfh_maxsz + \ |
| 242 | encode_fsinfo_maxsz) |
| 243 | #define NFS4_dec_setclientid_confirm_sz \ |
| 244 | (compound_decode_hdr_maxsz + \ |
| 245 | decode_setclientid_confirm_maxsz + \ |
| 246 | decode_putrootfh_maxsz + \ |
| 247 | decode_fsinfo_maxsz) |
| 248 | #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ |
| 249 | encode_putfh_maxsz + \ |
| 250 | encode_getattr_maxsz + \ |
| 251 | op_encode_hdr_maxsz + \ |
| 252 | 1 + 1 + 2 + 2 + \ |
| 253 | 1 + 4 + 1 + 2 + \ |
| 254 | owner_id_maxsz) |
| 255 | #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ |
| 256 | decode_putfh_maxsz + \ |
| 257 | decode_getattr_maxsz + \ |
| 258 | op_decode_hdr_maxsz + \ |
| 259 | 2 + 2 + 1 + 2 + \ |
| 260 | owner_id_maxsz) |
| 261 | #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ |
| 262 | encode_putfh_maxsz + \ |
| 263 | encode_getattr_maxsz + \ |
| 264 | op_encode_hdr_maxsz + \ |
| 265 | 1 + 2 + 2 + 2 + \ |
| 266 | owner_id_maxsz) |
| 267 | #define NFS4_dec_lockt_sz (NFS4_dec_lock_sz) |
| 268 | #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ |
| 269 | encode_putfh_maxsz + \ |
| 270 | encode_getattr_maxsz + \ |
| 271 | op_encode_hdr_maxsz + \ |
| 272 | 1 + 1 + 4 + 2 + 2) |
| 273 | #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ |
| 274 | decode_putfh_maxsz + \ |
| 275 | decode_getattr_maxsz + \ |
| 276 | op_decode_hdr_maxsz + 4) |
| 277 | #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ |
| 278 | encode_putfh_maxsz + \ |
| 279 | op_encode_hdr_maxsz + 1) |
| 280 | #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ |
| 281 | decode_putfh_maxsz + \ |
| 282 | op_decode_hdr_maxsz + 2) |
| 283 | #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ |
| 284 | encode_putfh_maxsz + \ |
| 285 | encode_getattr_maxsz) |
| 286 | #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ |
| 287 | decode_putfh_maxsz + \ |
| 288 | decode_getattr_maxsz) |
| 289 | #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ |
| 290 | encode_putfh_maxsz + \ |
| 291 | encode_lookup_maxsz + \ |
| 292 | encode_getattr_maxsz + \ |
| 293 | encode_getfh_maxsz) |
| 294 | #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ |
| 295 | decode_putfh_maxsz + \ |
| 296 | op_decode_hdr_maxsz + \ |
| 297 | decode_getattr_maxsz + \ |
| 298 | decode_getfh_maxsz) |
| 299 | #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ |
| 300 | encode_putrootfh_maxsz + \ |
| 301 | encode_getattr_maxsz + \ |
| 302 | encode_getfh_maxsz) |
| 303 | #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ |
| 304 | decode_putrootfh_maxsz + \ |
| 305 | decode_getattr_maxsz + \ |
| 306 | decode_getfh_maxsz) |
| 307 | #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ |
| 308 | encode_putfh_maxsz + \ |
Trond Myklebust | 16e4295 | 2005-10-27 22:12:44 -0400 | [diff] [blame^] | 309 | encode_remove_maxsz + \ |
| 310 | encode_getattr_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 311 | #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ |
| 312 | decode_putfh_maxsz + \ |
Trond Myklebust | 16e4295 | 2005-10-27 22:12:44 -0400 | [diff] [blame^] | 313 | op_decode_hdr_maxsz + 5 + \ |
| 314 | decode_getattr_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 315 | #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ |
| 316 | encode_putfh_maxsz + \ |
| 317 | encode_savefh_maxsz + \ |
| 318 | encode_putfh_maxsz + \ |
Trond Myklebust | 6caf2c8 | 2005-10-27 22:12:43 -0400 | [diff] [blame] | 319 | encode_rename_maxsz + \ |
| 320 | encode_getattr_maxsz + \ |
| 321 | encode_restorefh_maxsz + \ |
| 322 | encode_getattr_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 323 | #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ |
| 324 | decode_putfh_maxsz + \ |
| 325 | decode_savefh_maxsz + \ |
| 326 | decode_putfh_maxsz + \ |
Trond Myklebust | 6caf2c8 | 2005-10-27 22:12:43 -0400 | [diff] [blame] | 327 | decode_rename_maxsz + \ |
| 328 | decode_getattr_maxsz + \ |
| 329 | decode_restorefh_maxsz + \ |
| 330 | decode_getattr_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 331 | #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ |
| 332 | encode_putfh_maxsz + \ |
| 333 | encode_savefh_maxsz + \ |
| 334 | encode_putfh_maxsz + \ |
Trond Myklebust | 91ba2ee | 2005-10-27 22:12:42 -0400 | [diff] [blame] | 335 | encode_link_maxsz + \ |
| 336 | decode_getattr_maxsz + \ |
| 337 | encode_restorefh_maxsz + \ |
| 338 | decode_getattr_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 339 | #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ |
| 340 | decode_putfh_maxsz + \ |
| 341 | decode_savefh_maxsz + \ |
| 342 | decode_putfh_maxsz + \ |
Trond Myklebust | 91ba2ee | 2005-10-27 22:12:42 -0400 | [diff] [blame] | 343 | decode_link_maxsz + \ |
| 344 | decode_getattr_maxsz + \ |
| 345 | decode_restorefh_maxsz + \ |
| 346 | decode_getattr_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 347 | #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ |
| 348 | encode_putfh_maxsz + \ |
| 349 | encode_symlink_maxsz + \ |
| 350 | encode_getattr_maxsz + \ |
| 351 | encode_getfh_maxsz) |
| 352 | #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ |
| 353 | decode_putfh_maxsz + \ |
| 354 | decode_symlink_maxsz + \ |
| 355 | decode_getattr_maxsz + \ |
| 356 | decode_getfh_maxsz) |
| 357 | #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ |
| 358 | encode_putfh_maxsz + \ |
Trond Myklebust | 56ae19f | 2005-10-27 22:12:40 -0400 | [diff] [blame] | 359 | encode_savefh_maxsz + \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 360 | encode_create_maxsz + \ |
Trond Myklebust | 56ae19f | 2005-10-27 22:12:40 -0400 | [diff] [blame] | 361 | encode_getfh_maxsz + \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 362 | encode_getattr_maxsz + \ |
Trond Myklebust | 56ae19f | 2005-10-27 22:12:40 -0400 | [diff] [blame] | 363 | encode_restorefh_maxsz + \ |
| 364 | encode_getattr_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 365 | #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ |
| 366 | decode_putfh_maxsz + \ |
Trond Myklebust | 56ae19f | 2005-10-27 22:12:40 -0400 | [diff] [blame] | 367 | decode_savefh_maxsz + \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 368 | decode_create_maxsz + \ |
Trond Myklebust | 56ae19f | 2005-10-27 22:12:40 -0400 | [diff] [blame] | 369 | decode_getfh_maxsz + \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 370 | decode_getattr_maxsz + \ |
Trond Myklebust | 56ae19f | 2005-10-27 22:12:40 -0400 | [diff] [blame] | 371 | decode_restorefh_maxsz + \ |
| 372 | decode_getattr_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 373 | #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ |
| 374 | encode_putfh_maxsz + \ |
| 375 | encode_getattr_maxsz) |
| 376 | #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ |
| 377 | decode_putfh_maxsz + \ |
| 378 | decode_getattr_maxsz) |
| 379 | #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ |
| 380 | encode_putfh_maxsz + \ |
| 381 | encode_getattr_maxsz) |
| 382 | #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ |
| 383 | decode_putfh_maxsz + \ |
| 384 | op_decode_hdr_maxsz + 12) |
| 385 | #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ |
| 386 | encode_getattr_maxsz) |
| 387 | #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ |
| 388 | decode_getattr_maxsz) |
| 389 | #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ |
| 390 | encode_putfh_maxsz + \ |
| 391 | encode_delegreturn_maxsz) |
| 392 | #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ |
| 393 | decode_delegreturn_maxsz) |
J. Bruce Fields | 029d105 | 2005-06-22 17:16:22 +0000 | [diff] [blame] | 394 | #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ |
| 395 | encode_putfh_maxsz + \ |
| 396 | encode_getattr_maxsz) |
| 397 | #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ |
| 398 | decode_putfh_maxsz + \ |
| 399 | op_decode_hdr_maxsz + \ |
| 400 | nfs4_fattr_bitmap_maxsz + 1) |
J. Bruce Fields | 23ec696 | 2005-06-22 17:16:22 +0000 | [diff] [blame] | 401 | #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ |
| 402 | encode_putfh_maxsz + \ |
| 403 | op_encode_hdr_maxsz + 4 + \ |
| 404 | nfs4_fattr_bitmap_maxsz + 1) |
| 405 | #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ |
| 406 | decode_putfh_maxsz + \ |
| 407 | op_decode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 408 | |
| 409 | static struct { |
| 410 | unsigned int mode; |
| 411 | unsigned int nfs2type; |
| 412 | } nfs_type2fmt[] = { |
| 413 | { 0, NFNON }, |
| 414 | { S_IFREG, NFREG }, |
| 415 | { S_IFDIR, NFDIR }, |
| 416 | { S_IFBLK, NFBLK }, |
| 417 | { S_IFCHR, NFCHR }, |
| 418 | { S_IFLNK, NFLNK }, |
| 419 | { S_IFSOCK, NFSOCK }, |
| 420 | { S_IFIFO, NFFIFO }, |
| 421 | { 0, NFNON }, |
| 422 | { 0, NFNON }, |
| 423 | }; |
| 424 | |
| 425 | struct compound_hdr { |
| 426 | int32_t status; |
| 427 | uint32_t nops; |
| 428 | uint32_t taglen; |
| 429 | char * tag; |
| 430 | }; |
| 431 | |
| 432 | /* |
| 433 | * START OF "GENERIC" ENCODE ROUTINES. |
| 434 | * These may look a little ugly since they are imported from a "generic" |
| 435 | * set of XDR encode/decode routines which are intended to be shared by |
| 436 | * all of our NFSv4 implementations (OpenBSD, MacOS X...). |
| 437 | * |
| 438 | * If the pain of reading these is too great, it should be a straightforward |
| 439 | * task to translate them into Linux-specific versions which are more |
| 440 | * consistent with the style used in NFSv2/v3... |
| 441 | */ |
| 442 | #define WRITE32(n) *p++ = htonl(n) |
| 443 | #define WRITE64(n) do { \ |
| 444 | *p++ = htonl((uint32_t)((n) >> 32)); \ |
| 445 | *p++ = htonl((uint32_t)(n)); \ |
| 446 | } while (0) |
| 447 | #define WRITEMEM(ptr,nbytes) do { \ |
| 448 | p = xdr_encode_opaque_fixed(p, ptr, nbytes); \ |
| 449 | } while (0) |
| 450 | |
| 451 | #define RESERVE_SPACE(nbytes) do { \ |
| 452 | p = xdr_reserve_space(xdr, nbytes); \ |
| 453 | if (!p) printk("RESERVE_SPACE(%d) failed in function %s\n", (int) (nbytes), __FUNCTION__); \ |
| 454 | BUG_ON(!p); \ |
| 455 | } while (0) |
| 456 | |
| 457 | static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) |
| 458 | { |
| 459 | uint32_t *p; |
| 460 | |
| 461 | p = xdr_reserve_space(xdr, 4 + len); |
| 462 | BUG_ON(p == NULL); |
| 463 | xdr_encode_opaque(p, str, len); |
| 464 | } |
| 465 | |
| 466 | static int encode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) |
| 467 | { |
| 468 | uint32_t *p; |
| 469 | |
| 470 | dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag); |
| 471 | BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); |
| 472 | RESERVE_SPACE(12+(XDR_QUADLEN(hdr->taglen)<<2)); |
| 473 | WRITE32(hdr->taglen); |
| 474 | WRITEMEM(hdr->tag, hdr->taglen); |
| 475 | WRITE32(NFS4_MINOR_VERSION); |
| 476 | WRITE32(hdr->nops); |
| 477 | return 0; |
| 478 | } |
| 479 | |
| 480 | static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) |
| 481 | { |
| 482 | uint32_t *p; |
| 483 | |
| 484 | p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE); |
| 485 | BUG_ON(p == NULL); |
| 486 | xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE); |
| 487 | } |
| 488 | |
| 489 | static int encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) |
| 490 | { |
| 491 | char owner_name[IDMAP_NAMESZ]; |
| 492 | char owner_group[IDMAP_NAMESZ]; |
| 493 | int owner_namelen = 0; |
| 494 | int owner_grouplen = 0; |
| 495 | uint32_t *p; |
| 496 | uint32_t *q; |
| 497 | int len; |
| 498 | uint32_t bmval0 = 0; |
| 499 | uint32_t bmval1 = 0; |
| 500 | int status; |
| 501 | |
| 502 | /* |
| 503 | * We reserve enough space to write the entire attribute buffer at once. |
| 504 | * In the worst-case, this would be |
| 505 | * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) |
| 506 | * = 36 bytes, plus any contribution from variable-length fields |
J. Bruce Fields | 23ec696 | 2005-06-22 17:16:22 +0000 | [diff] [blame] | 507 | * such as owner/group. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 508 | */ |
| 509 | len = 16; |
| 510 | |
| 511 | /* Sigh */ |
| 512 | if (iap->ia_valid & ATTR_SIZE) |
| 513 | len += 8; |
| 514 | if (iap->ia_valid & ATTR_MODE) |
| 515 | len += 4; |
| 516 | if (iap->ia_valid & ATTR_UID) { |
| 517 | owner_namelen = nfs_map_uid_to_name(server->nfs4_state, iap->ia_uid, owner_name); |
| 518 | if (owner_namelen < 0) { |
| 519 | printk(KERN_WARNING "nfs: couldn't resolve uid %d to string\n", |
| 520 | iap->ia_uid); |
| 521 | /* XXX */ |
| 522 | strcpy(owner_name, "nobody"); |
| 523 | owner_namelen = sizeof("nobody") - 1; |
| 524 | /* goto out; */ |
| 525 | } |
| 526 | len += 4 + (XDR_QUADLEN(owner_namelen) << 2); |
| 527 | } |
| 528 | if (iap->ia_valid & ATTR_GID) { |
| 529 | owner_grouplen = nfs_map_gid_to_group(server->nfs4_state, iap->ia_gid, owner_group); |
| 530 | if (owner_grouplen < 0) { |
| 531 | printk(KERN_WARNING "nfs4: couldn't resolve gid %d to string\n", |
| 532 | iap->ia_gid); |
| 533 | strcpy(owner_group, "nobody"); |
| 534 | owner_grouplen = sizeof("nobody") - 1; |
| 535 | /* goto out; */ |
| 536 | } |
| 537 | len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); |
| 538 | } |
| 539 | if (iap->ia_valid & ATTR_ATIME_SET) |
| 540 | len += 16; |
| 541 | else if (iap->ia_valid & ATTR_ATIME) |
| 542 | len += 4; |
| 543 | if (iap->ia_valid & ATTR_MTIME_SET) |
| 544 | len += 16; |
| 545 | else if (iap->ia_valid & ATTR_MTIME) |
| 546 | len += 4; |
| 547 | RESERVE_SPACE(len); |
| 548 | |
| 549 | /* |
| 550 | * We write the bitmap length now, but leave the bitmap and the attribute |
| 551 | * buffer length to be backfilled at the end of this routine. |
| 552 | */ |
| 553 | WRITE32(2); |
| 554 | q = p; |
| 555 | p += 3; |
| 556 | |
| 557 | if (iap->ia_valid & ATTR_SIZE) { |
| 558 | bmval0 |= FATTR4_WORD0_SIZE; |
| 559 | WRITE64(iap->ia_size); |
| 560 | } |
| 561 | if (iap->ia_valid & ATTR_MODE) { |
| 562 | bmval1 |= FATTR4_WORD1_MODE; |
| 563 | WRITE32(iap->ia_mode); |
| 564 | } |
| 565 | if (iap->ia_valid & ATTR_UID) { |
| 566 | bmval1 |= FATTR4_WORD1_OWNER; |
| 567 | WRITE32(owner_namelen); |
| 568 | WRITEMEM(owner_name, owner_namelen); |
| 569 | } |
| 570 | if (iap->ia_valid & ATTR_GID) { |
| 571 | bmval1 |= FATTR4_WORD1_OWNER_GROUP; |
| 572 | WRITE32(owner_grouplen); |
| 573 | WRITEMEM(owner_group, owner_grouplen); |
| 574 | } |
| 575 | if (iap->ia_valid & ATTR_ATIME_SET) { |
| 576 | bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; |
| 577 | WRITE32(NFS4_SET_TO_CLIENT_TIME); |
| 578 | WRITE32(0); |
| 579 | WRITE32(iap->ia_mtime.tv_sec); |
| 580 | WRITE32(iap->ia_mtime.tv_nsec); |
| 581 | } |
| 582 | else if (iap->ia_valid & ATTR_ATIME) { |
| 583 | bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; |
| 584 | WRITE32(NFS4_SET_TO_SERVER_TIME); |
| 585 | } |
| 586 | if (iap->ia_valid & ATTR_MTIME_SET) { |
| 587 | bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; |
| 588 | WRITE32(NFS4_SET_TO_CLIENT_TIME); |
| 589 | WRITE32(0); |
| 590 | WRITE32(iap->ia_mtime.tv_sec); |
| 591 | WRITE32(iap->ia_mtime.tv_nsec); |
| 592 | } |
| 593 | else if (iap->ia_valid & ATTR_MTIME) { |
| 594 | bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; |
| 595 | WRITE32(NFS4_SET_TO_SERVER_TIME); |
| 596 | } |
| 597 | |
| 598 | /* |
| 599 | * Now we backfill the bitmap and the attribute buffer length. |
| 600 | */ |
| 601 | if (len != ((char *)p - (char *)q) + 4) { |
| 602 | printk ("encode_attr: Attr length calculation error! %u != %Zu\n", |
| 603 | len, ((char *)p - (char *)q) + 4); |
| 604 | BUG(); |
| 605 | } |
| 606 | len = (char *)p - (char *)q - 12; |
| 607 | *q++ = htonl(bmval0); |
| 608 | *q++ = htonl(bmval1); |
| 609 | *q++ = htonl(len); |
| 610 | |
| 611 | status = 0; |
| 612 | /* out: */ |
| 613 | return status; |
| 614 | } |
| 615 | |
| 616 | static int encode_access(struct xdr_stream *xdr, u32 access) |
| 617 | { |
| 618 | uint32_t *p; |
| 619 | |
| 620 | RESERVE_SPACE(8); |
| 621 | WRITE32(OP_ACCESS); |
| 622 | WRITE32(access); |
| 623 | |
| 624 | return 0; |
| 625 | } |
| 626 | |
| 627 | static int encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg) |
| 628 | { |
| 629 | uint32_t *p; |
| 630 | |
Trond Myklebust | 9512135 | 2005-10-18 14:20:12 -0700 | [diff] [blame] | 631 | RESERVE_SPACE(8+sizeof(arg->stateid->data)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 632 | WRITE32(OP_CLOSE); |
Trond Myklebust | cee54fc | 2005-10-18 14:20:12 -0700 | [diff] [blame] | 633 | WRITE32(arg->seqid->sequence->counter); |
Trond Myklebust | 9512135 | 2005-10-18 14:20:12 -0700 | [diff] [blame] | 634 | WRITEMEM(arg->stateid->data, sizeof(arg->stateid->data)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 635 | |
| 636 | return 0; |
| 637 | } |
| 638 | |
| 639 | static int encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args) |
| 640 | { |
| 641 | uint32_t *p; |
| 642 | |
| 643 | RESERVE_SPACE(16); |
| 644 | WRITE32(OP_COMMIT); |
| 645 | WRITE64(args->offset); |
| 646 | WRITE32(args->count); |
| 647 | |
| 648 | return 0; |
| 649 | } |
| 650 | |
| 651 | static int encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create) |
| 652 | { |
| 653 | uint32_t *p; |
| 654 | |
| 655 | RESERVE_SPACE(8); |
| 656 | WRITE32(OP_CREATE); |
| 657 | WRITE32(create->ftype); |
| 658 | |
| 659 | switch (create->ftype) { |
| 660 | case NF4LNK: |
| 661 | RESERVE_SPACE(4 + create->u.symlink->len); |
| 662 | WRITE32(create->u.symlink->len); |
| 663 | WRITEMEM(create->u.symlink->name, create->u.symlink->len); |
| 664 | break; |
| 665 | |
| 666 | case NF4BLK: case NF4CHR: |
| 667 | RESERVE_SPACE(8); |
| 668 | WRITE32(create->u.device.specdata1); |
| 669 | WRITE32(create->u.device.specdata2); |
| 670 | break; |
| 671 | |
| 672 | default: |
| 673 | break; |
| 674 | } |
| 675 | |
| 676 | RESERVE_SPACE(4 + create->name->len); |
| 677 | WRITE32(create->name->len); |
| 678 | WRITEMEM(create->name->name, create->name->len); |
| 679 | |
| 680 | return encode_attrs(xdr, create->attrs, create->server); |
| 681 | } |
| 682 | |
| 683 | static int encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap) |
| 684 | { |
| 685 | uint32_t *p; |
| 686 | |
| 687 | RESERVE_SPACE(12); |
| 688 | WRITE32(OP_GETATTR); |
| 689 | WRITE32(1); |
| 690 | WRITE32(bitmap); |
| 691 | return 0; |
| 692 | } |
| 693 | |
| 694 | static int encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1) |
| 695 | { |
| 696 | uint32_t *p; |
| 697 | |
| 698 | RESERVE_SPACE(16); |
| 699 | WRITE32(OP_GETATTR); |
| 700 | WRITE32(2); |
| 701 | WRITE32(bm0); |
| 702 | WRITE32(bm1); |
| 703 | return 0; |
| 704 | } |
| 705 | |
| 706 | static int encode_getfattr(struct xdr_stream *xdr, const u32* bitmask) |
| 707 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 708 | return encode_getattr_two(xdr, |
| 709 | bitmask[0] & nfs4_fattr_bitmap[0], |
| 710 | bitmask[1] & nfs4_fattr_bitmap[1]); |
| 711 | } |
| 712 | |
| 713 | static int encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask) |
| 714 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 715 | return encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0], |
| 716 | bitmask[1] & nfs4_fsinfo_bitmap[1]); |
| 717 | } |
| 718 | |
| 719 | static int encode_getfh(struct xdr_stream *xdr) |
| 720 | { |
| 721 | uint32_t *p; |
| 722 | |
| 723 | RESERVE_SPACE(4); |
| 724 | WRITE32(OP_GETFH); |
| 725 | |
| 726 | return 0; |
| 727 | } |
| 728 | |
| 729 | static int encode_link(struct xdr_stream *xdr, const struct qstr *name) |
| 730 | { |
| 731 | uint32_t *p; |
| 732 | |
| 733 | RESERVE_SPACE(8 + name->len); |
| 734 | WRITE32(OP_LINK); |
| 735 | WRITE32(name->len); |
| 736 | WRITEMEM(name->name, name->len); |
| 737 | |
| 738 | return 0; |
| 739 | } |
| 740 | |
| 741 | /* |
| 742 | * opcode,type,reclaim,offset,length,new_lock_owner = 32 |
| 743 | * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 |
| 744 | */ |
| 745 | static int encode_lock(struct xdr_stream *xdr, const struct nfs_lockargs *arg) |
| 746 | { |
| 747 | uint32_t *p; |
| 748 | struct nfs_lock_opargs *opargs = arg->u.lock; |
| 749 | |
| 750 | RESERVE_SPACE(32); |
| 751 | WRITE32(OP_LOCK); |
| 752 | WRITE32(arg->type); |
| 753 | WRITE32(opargs->reclaim); |
| 754 | WRITE64(arg->offset); |
| 755 | WRITE64(arg->length); |
| 756 | WRITE32(opargs->new_lock_owner); |
| 757 | if (opargs->new_lock_owner){ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 758 | RESERVE_SPACE(40); |
Trond Myklebust | 06735b3 | 2005-10-18 14:20:15 -0700 | [diff] [blame] | 759 | WRITE32(opargs->open_seqid->sequence->counter); |
| 760 | WRITEMEM(opargs->open_stateid->data, sizeof(opargs->open_stateid->data)); |
| 761 | WRITE32(opargs->lock_seqid->sequence->counter); |
| 762 | WRITE64(opargs->lock_owner.clientid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 763 | WRITE32(4); |
Trond Myklebust | 06735b3 | 2005-10-18 14:20:15 -0700 | [diff] [blame] | 764 | WRITE32(opargs->lock_owner.id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 765 | } |
| 766 | else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 767 | RESERVE_SPACE(20); |
Trond Myklebust | 06735b3 | 2005-10-18 14:20:15 -0700 | [diff] [blame] | 768 | WRITEMEM(opargs->lock_stateid->data, sizeof(opargs->lock_stateid->data)); |
| 769 | WRITE32(opargs->lock_seqid->sequence->counter); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 770 | } |
| 771 | |
| 772 | return 0; |
| 773 | } |
| 774 | |
| 775 | static int encode_lockt(struct xdr_stream *xdr, const struct nfs_lockargs *arg) |
| 776 | { |
| 777 | uint32_t *p; |
| 778 | struct nfs_lowner *opargs = arg->u.lockt; |
| 779 | |
| 780 | RESERVE_SPACE(40); |
| 781 | WRITE32(OP_LOCKT); |
| 782 | WRITE32(arg->type); |
| 783 | WRITE64(arg->offset); |
| 784 | WRITE64(arg->length); |
| 785 | WRITE64(opargs->clientid); |
| 786 | WRITE32(4); |
| 787 | WRITE32(opargs->id); |
| 788 | |
| 789 | return 0; |
| 790 | } |
| 791 | |
| 792 | static int encode_locku(struct xdr_stream *xdr, const struct nfs_lockargs *arg) |
| 793 | { |
| 794 | uint32_t *p; |
| 795 | struct nfs_locku_opargs *opargs = arg->u.locku; |
| 796 | |
| 797 | RESERVE_SPACE(44); |
| 798 | WRITE32(OP_LOCKU); |
| 799 | WRITE32(arg->type); |
Trond Myklebust | cee54fc | 2005-10-18 14:20:12 -0700 | [diff] [blame] | 800 | WRITE32(opargs->seqid->sequence->counter); |
Trond Myklebust | faf5f49 | 2005-10-18 14:20:15 -0700 | [diff] [blame] | 801 | WRITEMEM(opargs->stateid->data, sizeof(opargs->stateid->data)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 802 | WRITE64(arg->offset); |
| 803 | WRITE64(arg->length); |
| 804 | |
| 805 | return 0; |
| 806 | } |
| 807 | |
| 808 | static int encode_lookup(struct xdr_stream *xdr, const struct qstr *name) |
| 809 | { |
| 810 | int len = name->len; |
| 811 | uint32_t *p; |
| 812 | |
| 813 | RESERVE_SPACE(8 + len); |
| 814 | WRITE32(OP_LOOKUP); |
| 815 | WRITE32(len); |
| 816 | WRITEMEM(name->name, len); |
| 817 | |
| 818 | return 0; |
| 819 | } |
| 820 | |
| 821 | static void encode_share_access(struct xdr_stream *xdr, int open_flags) |
| 822 | { |
| 823 | uint32_t *p; |
| 824 | |
| 825 | RESERVE_SPACE(8); |
| 826 | switch (open_flags & (FMODE_READ|FMODE_WRITE)) { |
| 827 | case FMODE_READ: |
| 828 | WRITE32(NFS4_SHARE_ACCESS_READ); |
| 829 | break; |
| 830 | case FMODE_WRITE: |
| 831 | WRITE32(NFS4_SHARE_ACCESS_WRITE); |
| 832 | break; |
| 833 | case FMODE_READ|FMODE_WRITE: |
| 834 | WRITE32(NFS4_SHARE_ACCESS_BOTH); |
| 835 | break; |
| 836 | default: |
| 837 | BUG(); |
| 838 | } |
| 839 | WRITE32(0); /* for linux, share_deny = 0 always */ |
| 840 | } |
| 841 | |
| 842 | static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) |
| 843 | { |
| 844 | uint32_t *p; |
| 845 | /* |
| 846 | * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, |
| 847 | * owner 4 = 32 |
| 848 | */ |
| 849 | RESERVE_SPACE(8); |
| 850 | WRITE32(OP_OPEN); |
Trond Myklebust | cee54fc | 2005-10-18 14:20:12 -0700 | [diff] [blame] | 851 | WRITE32(arg->seqid->sequence->counter); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 852 | encode_share_access(xdr, arg->open_flags); |
| 853 | RESERVE_SPACE(16); |
| 854 | WRITE64(arg->clientid); |
| 855 | WRITE32(4); |
| 856 | WRITE32(arg->id); |
| 857 | } |
| 858 | |
| 859 | static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) |
| 860 | { |
| 861 | uint32_t *p; |
| 862 | |
| 863 | RESERVE_SPACE(4); |
| 864 | switch(arg->open_flags & O_EXCL) { |
| 865 | case 0: |
| 866 | WRITE32(NFS4_CREATE_UNCHECKED); |
| 867 | encode_attrs(xdr, arg->u.attrs, arg->server); |
| 868 | break; |
| 869 | default: |
| 870 | WRITE32(NFS4_CREATE_EXCLUSIVE); |
| 871 | encode_nfs4_verifier(xdr, &arg->u.verifier); |
| 872 | } |
| 873 | } |
| 874 | |
| 875 | static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) |
| 876 | { |
| 877 | uint32_t *p; |
| 878 | |
| 879 | RESERVE_SPACE(4); |
| 880 | switch (arg->open_flags & O_CREAT) { |
| 881 | case 0: |
| 882 | WRITE32(NFS4_OPEN_NOCREATE); |
| 883 | break; |
| 884 | default: |
| 885 | BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); |
| 886 | WRITE32(NFS4_OPEN_CREATE); |
| 887 | encode_createmode(xdr, arg); |
| 888 | } |
| 889 | } |
| 890 | |
| 891 | static inline void encode_delegation_type(struct xdr_stream *xdr, int delegation_type) |
| 892 | { |
| 893 | uint32_t *p; |
| 894 | |
| 895 | RESERVE_SPACE(4); |
| 896 | switch (delegation_type) { |
| 897 | case 0: |
| 898 | WRITE32(NFS4_OPEN_DELEGATE_NONE); |
| 899 | break; |
| 900 | case FMODE_READ: |
| 901 | WRITE32(NFS4_OPEN_DELEGATE_READ); |
| 902 | break; |
| 903 | case FMODE_WRITE|FMODE_READ: |
| 904 | WRITE32(NFS4_OPEN_DELEGATE_WRITE); |
| 905 | break; |
| 906 | default: |
| 907 | BUG(); |
| 908 | } |
| 909 | } |
| 910 | |
| 911 | static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) |
| 912 | { |
| 913 | uint32_t *p; |
| 914 | |
| 915 | RESERVE_SPACE(4); |
| 916 | WRITE32(NFS4_OPEN_CLAIM_NULL); |
| 917 | encode_string(xdr, name->len, name->name); |
| 918 | } |
| 919 | |
| 920 | static inline void encode_claim_previous(struct xdr_stream *xdr, int type) |
| 921 | { |
| 922 | uint32_t *p; |
| 923 | |
| 924 | RESERVE_SPACE(4); |
| 925 | WRITE32(NFS4_OPEN_CLAIM_PREVIOUS); |
| 926 | encode_delegation_type(xdr, type); |
| 927 | } |
| 928 | |
| 929 | static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) |
| 930 | { |
| 931 | uint32_t *p; |
| 932 | |
| 933 | RESERVE_SPACE(4+sizeof(stateid->data)); |
| 934 | WRITE32(NFS4_OPEN_CLAIM_DELEGATE_CUR); |
| 935 | WRITEMEM(stateid->data, sizeof(stateid->data)); |
| 936 | encode_string(xdr, name->len, name->name); |
| 937 | } |
| 938 | |
| 939 | static int encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg) |
| 940 | { |
| 941 | encode_openhdr(xdr, arg); |
| 942 | encode_opentype(xdr, arg); |
| 943 | switch (arg->claim) { |
| 944 | case NFS4_OPEN_CLAIM_NULL: |
| 945 | encode_claim_null(xdr, arg->name); |
| 946 | break; |
| 947 | case NFS4_OPEN_CLAIM_PREVIOUS: |
| 948 | encode_claim_previous(xdr, arg->u.delegation_type); |
| 949 | break; |
| 950 | case NFS4_OPEN_CLAIM_DELEGATE_CUR: |
| 951 | encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); |
| 952 | break; |
| 953 | default: |
| 954 | BUG(); |
| 955 | } |
| 956 | return 0; |
| 957 | } |
| 958 | |
| 959 | static int encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg) |
| 960 | { |
| 961 | uint32_t *p; |
| 962 | |
| 963 | RESERVE_SPACE(8+sizeof(arg->stateid.data)); |
| 964 | WRITE32(OP_OPEN_CONFIRM); |
| 965 | WRITEMEM(arg->stateid.data, sizeof(arg->stateid.data)); |
Trond Myklebust | cee54fc | 2005-10-18 14:20:12 -0700 | [diff] [blame] | 966 | WRITE32(arg->seqid->sequence->counter); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 967 | |
| 968 | return 0; |
| 969 | } |
| 970 | |
| 971 | static int encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg) |
| 972 | { |
| 973 | uint32_t *p; |
| 974 | |
Trond Myklebust | 9512135 | 2005-10-18 14:20:12 -0700 | [diff] [blame] | 975 | RESERVE_SPACE(8+sizeof(arg->stateid->data)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 976 | WRITE32(OP_OPEN_DOWNGRADE); |
Trond Myklebust | 9512135 | 2005-10-18 14:20:12 -0700 | [diff] [blame] | 977 | WRITEMEM(arg->stateid->data, sizeof(arg->stateid->data)); |
Trond Myklebust | cee54fc | 2005-10-18 14:20:12 -0700 | [diff] [blame] | 978 | WRITE32(arg->seqid->sequence->counter); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 979 | encode_share_access(xdr, arg->open_flags); |
| 980 | return 0; |
| 981 | } |
| 982 | |
| 983 | static int |
| 984 | encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh) |
| 985 | { |
| 986 | int len = fh->size; |
| 987 | uint32_t *p; |
| 988 | |
| 989 | RESERVE_SPACE(8 + len); |
| 990 | WRITE32(OP_PUTFH); |
| 991 | WRITE32(len); |
| 992 | WRITEMEM(fh->data, len); |
| 993 | |
| 994 | return 0; |
| 995 | } |
| 996 | |
| 997 | static int encode_putrootfh(struct xdr_stream *xdr) |
| 998 | { |
| 999 | uint32_t *p; |
| 1000 | |
| 1001 | RESERVE_SPACE(4); |
| 1002 | WRITE32(OP_PUTROOTFH); |
| 1003 | |
| 1004 | return 0; |
| 1005 | } |
| 1006 | |
| 1007 | static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx) |
| 1008 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1009 | nfs4_stateid stateid; |
| 1010 | uint32_t *p; |
| 1011 | |
| 1012 | RESERVE_SPACE(16); |
| 1013 | if (ctx->state != NULL) { |
| 1014 | nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner); |
| 1015 | WRITEMEM(stateid.data, sizeof(stateid.data)); |
| 1016 | } else |
| 1017 | WRITEMEM(zero_stateid.data, sizeof(zero_stateid.data)); |
| 1018 | } |
| 1019 | |
| 1020 | static int encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args) |
| 1021 | { |
| 1022 | uint32_t *p; |
| 1023 | |
| 1024 | RESERVE_SPACE(4); |
| 1025 | WRITE32(OP_READ); |
| 1026 | |
| 1027 | encode_stateid(xdr, args->context); |
| 1028 | |
| 1029 | RESERVE_SPACE(12); |
| 1030 | WRITE64(args->offset); |
| 1031 | WRITE32(args->count); |
| 1032 | |
| 1033 | return 0; |
| 1034 | } |
| 1035 | |
| 1036 | static int encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req) |
| 1037 | { |
| 1038 | struct rpc_auth *auth = req->rq_task->tk_auth; |
Manoj Naik | 97d312d | 2005-06-22 17:16:39 +0000 | [diff] [blame] | 1039 | uint32_t attrs[2] = { |
| 1040 | FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID, |
| 1041 | FATTR4_WORD1_MOUNTED_ON_FILEID, |
| 1042 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1043 | int replen; |
| 1044 | uint32_t *p; |
| 1045 | |
| 1046 | RESERVE_SPACE(32+sizeof(nfs4_verifier)); |
| 1047 | WRITE32(OP_READDIR); |
| 1048 | WRITE64(readdir->cookie); |
| 1049 | WRITEMEM(readdir->verifier.data, sizeof(readdir->verifier.data)); |
| 1050 | WRITE32(readdir->count >> 1); /* We're not doing readdirplus */ |
| 1051 | WRITE32(readdir->count); |
| 1052 | WRITE32(2); |
Manoj Naik | 97d312d | 2005-06-22 17:16:39 +0000 | [diff] [blame] | 1053 | /* Switch to mounted_on_fileid if the server supports it */ |
| 1054 | if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) |
| 1055 | attrs[0] &= ~FATTR4_WORD0_FILEID; |
| 1056 | else |
| 1057 | attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; |
| 1058 | WRITE32(attrs[0] & readdir->bitmask[0]); |
| 1059 | WRITE32(attrs[1] & readdir->bitmask[1]); |
Trond Myklebust | eadf459 | 2005-06-22 17:16:39 +0000 | [diff] [blame] | 1060 | dprintk("%s: cookie = %Lu, verifier = 0x%x%x, bitmap = 0x%x%x\n", |
| 1061 | __FUNCTION__, |
| 1062 | (unsigned long long)readdir->cookie, |
| 1063 | ((u32 *)readdir->verifier.data)[0], |
| 1064 | ((u32 *)readdir->verifier.data)[1], |
| 1065 | attrs[0] & readdir->bitmask[0], |
| 1066 | attrs[1] & readdir->bitmask[1]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1067 | |
| 1068 | /* set up reply kvec |
| 1069 | * toplevel_status + taglen + rescount + OP_PUTFH + status |
| 1070 | * + OP_READDIR + status + verifer(2) = 9 |
| 1071 | */ |
| 1072 | replen = (RPC_REPHDRSIZE + auth->au_rslack + 9) << 2; |
| 1073 | xdr_inline_pages(&req->rq_rcv_buf, replen, readdir->pages, |
| 1074 | readdir->pgbase, readdir->count); |
Trond Myklebust | eadf459 | 2005-06-22 17:16:39 +0000 | [diff] [blame] | 1075 | dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", |
| 1076 | __FUNCTION__, replen, readdir->pages, |
| 1077 | readdir->pgbase, readdir->count); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1078 | |
| 1079 | return 0; |
| 1080 | } |
| 1081 | |
| 1082 | static int encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req) |
| 1083 | { |
| 1084 | struct rpc_auth *auth = req->rq_task->tk_auth; |
| 1085 | unsigned int replen; |
| 1086 | uint32_t *p; |
| 1087 | |
| 1088 | RESERVE_SPACE(4); |
| 1089 | WRITE32(OP_READLINK); |
| 1090 | |
| 1091 | /* set up reply kvec |
| 1092 | * toplevel_status + taglen + rescount + OP_PUTFH + status |
| 1093 | * + OP_READLINK + status + string length = 8 |
| 1094 | */ |
| 1095 | replen = (RPC_REPHDRSIZE + auth->au_rslack + 8) << 2; |
| 1096 | xdr_inline_pages(&req->rq_rcv_buf, replen, readlink->pages, |
| 1097 | readlink->pgbase, readlink->pglen); |
| 1098 | |
| 1099 | return 0; |
| 1100 | } |
| 1101 | |
| 1102 | static int encode_remove(struct xdr_stream *xdr, const struct qstr *name) |
| 1103 | { |
| 1104 | uint32_t *p; |
| 1105 | |
| 1106 | RESERVE_SPACE(8 + name->len); |
| 1107 | WRITE32(OP_REMOVE); |
| 1108 | WRITE32(name->len); |
| 1109 | WRITEMEM(name->name, name->len); |
| 1110 | |
| 1111 | return 0; |
| 1112 | } |
| 1113 | |
| 1114 | static int encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname) |
| 1115 | { |
| 1116 | uint32_t *p; |
| 1117 | |
| 1118 | RESERVE_SPACE(8 + oldname->len); |
| 1119 | WRITE32(OP_RENAME); |
| 1120 | WRITE32(oldname->len); |
| 1121 | WRITEMEM(oldname->name, oldname->len); |
| 1122 | |
| 1123 | RESERVE_SPACE(4 + newname->len); |
| 1124 | WRITE32(newname->len); |
| 1125 | WRITEMEM(newname->name, newname->len); |
| 1126 | |
| 1127 | return 0; |
| 1128 | } |
| 1129 | |
| 1130 | static int encode_renew(struct xdr_stream *xdr, const struct nfs4_client *client_stateid) |
| 1131 | { |
| 1132 | uint32_t *p; |
| 1133 | |
| 1134 | RESERVE_SPACE(12); |
| 1135 | WRITE32(OP_RENEW); |
| 1136 | WRITE64(client_stateid->cl_clientid); |
| 1137 | |
| 1138 | return 0; |
| 1139 | } |
| 1140 | |
| 1141 | static int |
Trond Myklebust | 56ae19f | 2005-10-27 22:12:40 -0400 | [diff] [blame] | 1142 | encode_restorefh(struct xdr_stream *xdr) |
| 1143 | { |
| 1144 | uint32_t *p; |
| 1145 | |
| 1146 | RESERVE_SPACE(4); |
| 1147 | WRITE32(OP_RESTOREFH); |
| 1148 | |
| 1149 | return 0; |
| 1150 | } |
| 1151 | |
| 1152 | static int |
J. Bruce Fields | 23ec696 | 2005-06-22 17:16:22 +0000 | [diff] [blame] | 1153 | encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg) |
| 1154 | { |
| 1155 | uint32_t *p; |
| 1156 | |
| 1157 | RESERVE_SPACE(4+sizeof(zero_stateid.data)); |
| 1158 | WRITE32(OP_SETATTR); |
| 1159 | WRITEMEM(zero_stateid.data, sizeof(zero_stateid.data)); |
| 1160 | RESERVE_SPACE(2*4); |
| 1161 | WRITE32(1); |
| 1162 | WRITE32(FATTR4_WORD0_ACL); |
| 1163 | if (arg->acl_len % 4) |
| 1164 | return -EINVAL; |
| 1165 | RESERVE_SPACE(4); |
| 1166 | WRITE32(arg->acl_len); |
| 1167 | xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); |
| 1168 | return 0; |
| 1169 | } |
| 1170 | |
| 1171 | static int |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1172 | encode_savefh(struct xdr_stream *xdr) |
| 1173 | { |
| 1174 | uint32_t *p; |
| 1175 | |
| 1176 | RESERVE_SPACE(4); |
| 1177 | WRITE32(OP_SAVEFH); |
| 1178 | |
| 1179 | return 0; |
| 1180 | } |
| 1181 | |
| 1182 | static int encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server) |
| 1183 | { |
| 1184 | int status; |
| 1185 | uint32_t *p; |
| 1186 | |
| 1187 | RESERVE_SPACE(4+sizeof(arg->stateid.data)); |
| 1188 | WRITE32(OP_SETATTR); |
| 1189 | WRITEMEM(arg->stateid.data, sizeof(arg->stateid.data)); |
| 1190 | |
| 1191 | if ((status = encode_attrs(xdr, arg->iap, server))) |
| 1192 | return status; |
| 1193 | |
| 1194 | return 0; |
| 1195 | } |
| 1196 | |
| 1197 | static int encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid) |
| 1198 | { |
| 1199 | uint32_t *p; |
| 1200 | |
| 1201 | RESERVE_SPACE(4 + sizeof(setclientid->sc_verifier->data)); |
| 1202 | WRITE32(OP_SETCLIENTID); |
| 1203 | WRITEMEM(setclientid->sc_verifier->data, sizeof(setclientid->sc_verifier->data)); |
| 1204 | |
| 1205 | encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); |
| 1206 | RESERVE_SPACE(4); |
| 1207 | WRITE32(setclientid->sc_prog); |
| 1208 | encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); |
| 1209 | encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); |
| 1210 | RESERVE_SPACE(4); |
| 1211 | WRITE32(setclientid->sc_cb_ident); |
| 1212 | |
| 1213 | return 0; |
| 1214 | } |
| 1215 | |
| 1216 | static int encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_client *client_state) |
| 1217 | { |
| 1218 | uint32_t *p; |
| 1219 | |
| 1220 | RESERVE_SPACE(12 + sizeof(client_state->cl_confirm.data)); |
| 1221 | WRITE32(OP_SETCLIENTID_CONFIRM); |
| 1222 | WRITE64(client_state->cl_clientid); |
| 1223 | WRITEMEM(client_state->cl_confirm.data, sizeof(client_state->cl_confirm.data)); |
| 1224 | |
| 1225 | return 0; |
| 1226 | } |
| 1227 | |
| 1228 | static int encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args) |
| 1229 | { |
| 1230 | uint32_t *p; |
| 1231 | |
| 1232 | RESERVE_SPACE(4); |
| 1233 | WRITE32(OP_WRITE); |
| 1234 | |
| 1235 | encode_stateid(xdr, args->context); |
| 1236 | |
| 1237 | RESERVE_SPACE(16); |
| 1238 | WRITE64(args->offset); |
| 1239 | WRITE32(args->stable); |
| 1240 | WRITE32(args->count); |
| 1241 | |
| 1242 | xdr_write_pages(xdr, args->pages, args->pgbase, args->count); |
| 1243 | |
| 1244 | return 0; |
| 1245 | } |
| 1246 | |
| 1247 | static int encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid) |
| 1248 | { |
| 1249 | uint32_t *p; |
| 1250 | |
| 1251 | RESERVE_SPACE(20); |
| 1252 | |
| 1253 | WRITE32(OP_DELEGRETURN); |
| 1254 | WRITEMEM(stateid->data, sizeof(stateid->data)); |
| 1255 | return 0; |
| 1256 | |
| 1257 | } |
| 1258 | /* |
| 1259 | * END OF "GENERIC" ENCODE ROUTINES. |
| 1260 | */ |
| 1261 | |
| 1262 | /* |
| 1263 | * Encode an ACCESS request |
| 1264 | */ |
| 1265 | static int nfs4_xdr_enc_access(struct rpc_rqst *req, uint32_t *p, const struct nfs4_accessargs *args) |
| 1266 | { |
| 1267 | struct xdr_stream xdr; |
| 1268 | struct compound_hdr hdr = { |
| 1269 | .nops = 2, |
| 1270 | }; |
| 1271 | int status; |
| 1272 | |
| 1273 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1274 | encode_compound_hdr(&xdr, &hdr); |
| 1275 | if ((status = encode_putfh(&xdr, args->fh)) == 0) |
| 1276 | status = encode_access(&xdr, args->access); |
| 1277 | return status; |
| 1278 | } |
| 1279 | |
| 1280 | /* |
| 1281 | * Encode LOOKUP request |
| 1282 | */ |
| 1283 | static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, uint32_t *p, const struct nfs4_lookup_arg *args) |
| 1284 | { |
| 1285 | struct xdr_stream xdr; |
| 1286 | struct compound_hdr hdr = { |
| 1287 | .nops = 4, |
| 1288 | }; |
| 1289 | int status; |
| 1290 | |
| 1291 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1292 | encode_compound_hdr(&xdr, &hdr); |
| 1293 | if ((status = encode_putfh(&xdr, args->dir_fh)) != 0) |
| 1294 | goto out; |
| 1295 | if ((status = encode_lookup(&xdr, args->name)) != 0) |
| 1296 | goto out; |
| 1297 | if ((status = encode_getfh(&xdr)) != 0) |
| 1298 | goto out; |
| 1299 | status = encode_getfattr(&xdr, args->bitmask); |
| 1300 | out: |
| 1301 | return status; |
| 1302 | } |
| 1303 | |
| 1304 | /* |
| 1305 | * Encode LOOKUP_ROOT request |
| 1306 | */ |
| 1307 | static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, uint32_t *p, const struct nfs4_lookup_root_arg *args) |
| 1308 | { |
| 1309 | struct xdr_stream xdr; |
| 1310 | struct compound_hdr hdr = { |
| 1311 | .nops = 3, |
| 1312 | }; |
| 1313 | int status; |
| 1314 | |
| 1315 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1316 | encode_compound_hdr(&xdr, &hdr); |
| 1317 | if ((status = encode_putrootfh(&xdr)) != 0) |
| 1318 | goto out; |
| 1319 | if ((status = encode_getfh(&xdr)) == 0) |
| 1320 | status = encode_getfattr(&xdr, args->bitmask); |
| 1321 | out: |
| 1322 | return status; |
| 1323 | } |
| 1324 | |
| 1325 | /* |
| 1326 | * Encode REMOVE request |
| 1327 | */ |
| 1328 | static int nfs4_xdr_enc_remove(struct rpc_rqst *req, uint32_t *p, const struct nfs4_remove_arg *args) |
| 1329 | { |
| 1330 | struct xdr_stream xdr; |
| 1331 | struct compound_hdr hdr = { |
Trond Myklebust | 16e4295 | 2005-10-27 22:12:44 -0400 | [diff] [blame^] | 1332 | .nops = 3, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1333 | }; |
| 1334 | int status; |
| 1335 | |
| 1336 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1337 | encode_compound_hdr(&xdr, &hdr); |
Trond Myklebust | 16e4295 | 2005-10-27 22:12:44 -0400 | [diff] [blame^] | 1338 | if ((status = encode_putfh(&xdr, args->fh)) != 0) |
| 1339 | goto out; |
| 1340 | if ((status = encode_remove(&xdr, args->name)) != 0) |
| 1341 | goto out; |
| 1342 | status = encode_getfattr(&xdr, args->bitmask); |
| 1343 | out: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1344 | return status; |
| 1345 | } |
| 1346 | |
| 1347 | /* |
| 1348 | * Encode RENAME request |
| 1349 | */ |
| 1350 | static int nfs4_xdr_enc_rename(struct rpc_rqst *req, uint32_t *p, const struct nfs4_rename_arg *args) |
| 1351 | { |
| 1352 | struct xdr_stream xdr; |
| 1353 | struct compound_hdr hdr = { |
Trond Myklebust | 6caf2c8 | 2005-10-27 22:12:43 -0400 | [diff] [blame] | 1354 | .nops = 7, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1355 | }; |
| 1356 | int status; |
| 1357 | |
| 1358 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1359 | encode_compound_hdr(&xdr, &hdr); |
| 1360 | if ((status = encode_putfh(&xdr, args->old_dir)) != 0) |
| 1361 | goto out; |
| 1362 | if ((status = encode_savefh(&xdr)) != 0) |
| 1363 | goto out; |
| 1364 | if ((status = encode_putfh(&xdr, args->new_dir)) != 0) |
| 1365 | goto out; |
Trond Myklebust | 6caf2c8 | 2005-10-27 22:12:43 -0400 | [diff] [blame] | 1366 | if ((status = encode_rename(&xdr, args->old_name, args->new_name)) != 0) |
| 1367 | goto out; |
| 1368 | if ((status = encode_getfattr(&xdr, args->bitmask)) != 0) |
| 1369 | goto out; |
| 1370 | if ((status = encode_restorefh(&xdr)) != 0) |
| 1371 | goto out; |
| 1372 | status = encode_getfattr(&xdr, args->bitmask); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1373 | out: |
| 1374 | return status; |
| 1375 | } |
| 1376 | |
| 1377 | /* |
| 1378 | * Encode LINK request |
| 1379 | */ |
| 1380 | static int nfs4_xdr_enc_link(struct rpc_rqst *req, uint32_t *p, const struct nfs4_link_arg *args) |
| 1381 | { |
| 1382 | struct xdr_stream xdr; |
| 1383 | struct compound_hdr hdr = { |
Trond Myklebust | 91ba2ee | 2005-10-27 22:12:42 -0400 | [diff] [blame] | 1384 | .nops = 7, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1385 | }; |
| 1386 | int status; |
| 1387 | |
| 1388 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1389 | encode_compound_hdr(&xdr, &hdr); |
| 1390 | if ((status = encode_putfh(&xdr, args->fh)) != 0) |
| 1391 | goto out; |
| 1392 | if ((status = encode_savefh(&xdr)) != 0) |
| 1393 | goto out; |
| 1394 | if ((status = encode_putfh(&xdr, args->dir_fh)) != 0) |
| 1395 | goto out; |
Trond Myklebust | 91ba2ee | 2005-10-27 22:12:42 -0400 | [diff] [blame] | 1396 | if ((status = encode_link(&xdr, args->name)) != 0) |
| 1397 | goto out; |
| 1398 | if ((status = encode_getfattr(&xdr, args->bitmask)) != 0) |
| 1399 | goto out; |
| 1400 | if ((status = encode_restorefh(&xdr)) != 0) |
| 1401 | goto out; |
| 1402 | status = encode_getfattr(&xdr, args->bitmask); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1403 | out: |
| 1404 | return status; |
| 1405 | } |
| 1406 | |
| 1407 | /* |
| 1408 | * Encode CREATE request |
| 1409 | */ |
| 1410 | static int nfs4_xdr_enc_create(struct rpc_rqst *req, uint32_t *p, const struct nfs4_create_arg *args) |
| 1411 | { |
| 1412 | struct xdr_stream xdr; |
| 1413 | struct compound_hdr hdr = { |
Trond Myklebust | 56ae19f | 2005-10-27 22:12:40 -0400 | [diff] [blame] | 1414 | .nops = 7, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1415 | }; |
| 1416 | int status; |
| 1417 | |
| 1418 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1419 | encode_compound_hdr(&xdr, &hdr); |
| 1420 | if ((status = encode_putfh(&xdr, args->dir_fh)) != 0) |
| 1421 | goto out; |
Trond Myklebust | 56ae19f | 2005-10-27 22:12:40 -0400 | [diff] [blame] | 1422 | if ((status = encode_savefh(&xdr)) != 0) |
| 1423 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1424 | if ((status = encode_create(&xdr, args)) != 0) |
| 1425 | goto out; |
| 1426 | if ((status = encode_getfh(&xdr)) != 0) |
| 1427 | goto out; |
Trond Myklebust | 56ae19f | 2005-10-27 22:12:40 -0400 | [diff] [blame] | 1428 | if ((status = encode_getfattr(&xdr, args->bitmask)) != 0) |
| 1429 | goto out; |
| 1430 | if ((status = encode_restorefh(&xdr)) != 0) |
| 1431 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1432 | status = encode_getfattr(&xdr, args->bitmask); |
| 1433 | out: |
| 1434 | return status; |
| 1435 | } |
| 1436 | |
| 1437 | /* |
| 1438 | * Encode SYMLINK request |
| 1439 | */ |
| 1440 | static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, uint32_t *p, const struct nfs4_create_arg *args) |
| 1441 | { |
| 1442 | return nfs4_xdr_enc_create(req, p, args); |
| 1443 | } |
| 1444 | |
| 1445 | /* |
| 1446 | * Encode GETATTR request |
| 1447 | */ |
| 1448 | static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, uint32_t *p, const struct nfs4_getattr_arg *args) |
| 1449 | { |
| 1450 | struct xdr_stream xdr; |
| 1451 | struct compound_hdr hdr = { |
| 1452 | .nops = 2, |
| 1453 | }; |
| 1454 | int status; |
| 1455 | |
| 1456 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1457 | encode_compound_hdr(&xdr, &hdr); |
| 1458 | if ((status = encode_putfh(&xdr, args->fh)) == 0) |
| 1459 | status = encode_getfattr(&xdr, args->bitmask); |
| 1460 | return status; |
| 1461 | } |
| 1462 | |
| 1463 | /* |
| 1464 | * Encode a CLOSE request |
| 1465 | */ |
| 1466 | static int nfs4_xdr_enc_close(struct rpc_rqst *req, uint32_t *p, struct nfs_closeargs *args) |
| 1467 | { |
| 1468 | struct xdr_stream xdr; |
| 1469 | struct compound_hdr hdr = { |
Trond Myklebust | 516a6af | 2005-10-27 22:12:41 -0400 | [diff] [blame] | 1470 | .nops = 3, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1471 | }; |
| 1472 | int status; |
| 1473 | |
| 1474 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1475 | encode_compound_hdr(&xdr, &hdr); |
| 1476 | status = encode_putfh(&xdr, args->fh); |
| 1477 | if(status) |
| 1478 | goto out; |
| 1479 | status = encode_close(&xdr, args); |
Trond Myklebust | 516a6af | 2005-10-27 22:12:41 -0400 | [diff] [blame] | 1480 | if (status != 0) |
| 1481 | goto out; |
| 1482 | status = encode_getfattr(&xdr, args->bitmask); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1483 | out: |
| 1484 | return status; |
| 1485 | } |
| 1486 | |
| 1487 | /* |
| 1488 | * Encode an OPEN request |
| 1489 | */ |
| 1490 | static int nfs4_xdr_enc_open(struct rpc_rqst *req, uint32_t *p, struct nfs_openargs *args) |
| 1491 | { |
| 1492 | struct xdr_stream xdr; |
| 1493 | struct compound_hdr hdr = { |
Trond Myklebust | 56ae19f | 2005-10-27 22:12:40 -0400 | [diff] [blame] | 1494 | .nops = 7, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1495 | }; |
| 1496 | int status; |
| 1497 | |
Trond Myklebust | cee54fc | 2005-10-18 14:20:12 -0700 | [diff] [blame] | 1498 | status = nfs_wait_on_sequence(args->seqid, req->rq_task); |
| 1499 | if (status != 0) |
| 1500 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1501 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1502 | encode_compound_hdr(&xdr, &hdr); |
| 1503 | status = encode_putfh(&xdr, args->fh); |
| 1504 | if (status) |
| 1505 | goto out; |
Trond Myklebust | 56ae19f | 2005-10-27 22:12:40 -0400 | [diff] [blame] | 1506 | status = encode_savefh(&xdr); |
| 1507 | if (status) |
| 1508 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1509 | status = encode_open(&xdr, args); |
| 1510 | if (status) |
| 1511 | goto out; |
| 1512 | status = encode_getfh(&xdr); |
| 1513 | if (status) |
| 1514 | goto out; |
| 1515 | status = encode_getfattr(&xdr, args->bitmask); |
Trond Myklebust | 56ae19f | 2005-10-27 22:12:40 -0400 | [diff] [blame] | 1516 | if (status) |
| 1517 | goto out; |
| 1518 | status = encode_restorefh(&xdr); |
| 1519 | if (status) |
| 1520 | goto out; |
| 1521 | status = encode_getfattr(&xdr, args->bitmask); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1522 | out: |
| 1523 | return status; |
| 1524 | } |
| 1525 | |
| 1526 | /* |
| 1527 | * Encode an OPEN_CONFIRM request |
| 1528 | */ |
| 1529 | static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, uint32_t *p, struct nfs_open_confirmargs *args) |
| 1530 | { |
| 1531 | struct xdr_stream xdr; |
| 1532 | struct compound_hdr hdr = { |
| 1533 | .nops = 2, |
| 1534 | }; |
| 1535 | int status; |
| 1536 | |
Trond Myklebust | cee54fc | 2005-10-18 14:20:12 -0700 | [diff] [blame] | 1537 | status = nfs_wait_on_sequence(args->seqid, req->rq_task); |
| 1538 | if (status != 0) |
| 1539 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1540 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1541 | encode_compound_hdr(&xdr, &hdr); |
| 1542 | status = encode_putfh(&xdr, args->fh); |
| 1543 | if(status) |
| 1544 | goto out; |
| 1545 | status = encode_open_confirm(&xdr, args); |
| 1546 | out: |
| 1547 | return status; |
| 1548 | } |
| 1549 | |
| 1550 | /* |
| 1551 | * Encode an OPEN request with no attributes. |
| 1552 | */ |
| 1553 | static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, uint32_t *p, struct nfs_openargs *args) |
| 1554 | { |
| 1555 | struct xdr_stream xdr; |
| 1556 | struct compound_hdr hdr = { |
| 1557 | .nops = 2, |
| 1558 | }; |
| 1559 | int status; |
| 1560 | |
Trond Myklebust | cee54fc | 2005-10-18 14:20:12 -0700 | [diff] [blame] | 1561 | status = nfs_wait_on_sequence(args->seqid, req->rq_task); |
| 1562 | if (status != 0) |
| 1563 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1564 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1565 | encode_compound_hdr(&xdr, &hdr); |
| 1566 | status = encode_putfh(&xdr, args->fh); |
| 1567 | if (status) |
| 1568 | goto out; |
| 1569 | status = encode_open(&xdr, args); |
| 1570 | out: |
| 1571 | return status; |
| 1572 | } |
| 1573 | |
| 1574 | /* |
| 1575 | * Encode an OPEN_DOWNGRADE request |
| 1576 | */ |
| 1577 | static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, uint32_t *p, struct nfs_closeargs *args) |
| 1578 | { |
| 1579 | struct xdr_stream xdr; |
| 1580 | struct compound_hdr hdr = { |
Trond Myklebust | 516a6af | 2005-10-27 22:12:41 -0400 | [diff] [blame] | 1581 | .nops = 3, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1582 | }; |
| 1583 | int status; |
| 1584 | |
| 1585 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1586 | encode_compound_hdr(&xdr, &hdr); |
| 1587 | status = encode_putfh(&xdr, args->fh); |
| 1588 | if (status) |
| 1589 | goto out; |
| 1590 | status = encode_open_downgrade(&xdr, args); |
Trond Myklebust | 516a6af | 2005-10-27 22:12:41 -0400 | [diff] [blame] | 1591 | if (status != 0) |
| 1592 | goto out; |
| 1593 | status = encode_getfattr(&xdr, args->bitmask); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1594 | out: |
| 1595 | return status; |
| 1596 | } |
| 1597 | |
| 1598 | /* |
| 1599 | * Encode a LOCK request |
| 1600 | */ |
| 1601 | static int nfs4_xdr_enc_lock(struct rpc_rqst *req, uint32_t *p, struct nfs_lockargs *args) |
| 1602 | { |
| 1603 | struct xdr_stream xdr; |
| 1604 | struct compound_hdr hdr = { |
| 1605 | .nops = 2, |
| 1606 | }; |
Trond Myklebust | cee54fc | 2005-10-18 14:20:12 -0700 | [diff] [blame] | 1607 | struct nfs_lock_opargs *opargs = args->u.lock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1608 | int status; |
| 1609 | |
Trond Myklebust | 06735b3 | 2005-10-18 14:20:15 -0700 | [diff] [blame] | 1610 | status = nfs_wait_on_sequence(opargs->lock_seqid, req->rq_task); |
Trond Myklebust | cee54fc | 2005-10-18 14:20:12 -0700 | [diff] [blame] | 1611 | if (status != 0) |
| 1612 | goto out; |
Trond Myklebust | 06735b3 | 2005-10-18 14:20:15 -0700 | [diff] [blame] | 1613 | /* Do we need to do an open_to_lock_owner? */ |
| 1614 | if (opargs->lock_seqid->sequence->flags & NFS_SEQID_CONFIRMED) |
| 1615 | opargs->new_lock_owner = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1616 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1617 | encode_compound_hdr(&xdr, &hdr); |
| 1618 | status = encode_putfh(&xdr, args->fh); |
| 1619 | if(status) |
| 1620 | goto out; |
| 1621 | status = encode_lock(&xdr, args); |
| 1622 | out: |
| 1623 | return status; |
| 1624 | } |
| 1625 | |
| 1626 | /* |
| 1627 | * Encode a LOCKT request |
| 1628 | */ |
| 1629 | static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, uint32_t *p, struct nfs_lockargs *args) |
| 1630 | { |
| 1631 | struct xdr_stream xdr; |
| 1632 | struct compound_hdr hdr = { |
| 1633 | .nops = 2, |
| 1634 | }; |
| 1635 | int status; |
| 1636 | |
| 1637 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1638 | encode_compound_hdr(&xdr, &hdr); |
| 1639 | status = encode_putfh(&xdr, args->fh); |
| 1640 | if(status) |
| 1641 | goto out; |
| 1642 | status = encode_lockt(&xdr, args); |
| 1643 | out: |
| 1644 | return status; |
| 1645 | } |
| 1646 | |
| 1647 | /* |
| 1648 | * Encode a LOCKU request |
| 1649 | */ |
| 1650 | static int nfs4_xdr_enc_locku(struct rpc_rqst *req, uint32_t *p, struct nfs_lockargs *args) |
| 1651 | { |
| 1652 | struct xdr_stream xdr; |
| 1653 | struct compound_hdr hdr = { |
| 1654 | .nops = 2, |
| 1655 | }; |
| 1656 | int status; |
| 1657 | |
| 1658 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1659 | encode_compound_hdr(&xdr, &hdr); |
| 1660 | status = encode_putfh(&xdr, args->fh); |
| 1661 | if(status) |
| 1662 | goto out; |
| 1663 | status = encode_locku(&xdr, args); |
| 1664 | out: |
| 1665 | return status; |
| 1666 | } |
| 1667 | |
| 1668 | /* |
| 1669 | * Encode a READLINK request |
| 1670 | */ |
| 1671 | static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, uint32_t *p, const struct nfs4_readlink *args) |
| 1672 | { |
| 1673 | struct xdr_stream xdr; |
| 1674 | struct compound_hdr hdr = { |
| 1675 | .nops = 2, |
| 1676 | }; |
| 1677 | int status; |
| 1678 | |
| 1679 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1680 | encode_compound_hdr(&xdr, &hdr); |
| 1681 | status = encode_putfh(&xdr, args->fh); |
| 1682 | if(status) |
| 1683 | goto out; |
| 1684 | status = encode_readlink(&xdr, args, req); |
| 1685 | out: |
| 1686 | return status; |
| 1687 | } |
| 1688 | |
| 1689 | /* |
| 1690 | * Encode a READDIR request |
| 1691 | */ |
| 1692 | static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, uint32_t *p, const struct nfs4_readdir_arg *args) |
| 1693 | { |
| 1694 | struct xdr_stream xdr; |
| 1695 | struct compound_hdr hdr = { |
| 1696 | .nops = 2, |
| 1697 | }; |
| 1698 | int status; |
| 1699 | |
| 1700 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1701 | encode_compound_hdr(&xdr, &hdr); |
| 1702 | status = encode_putfh(&xdr, args->fh); |
| 1703 | if(status) |
| 1704 | goto out; |
| 1705 | status = encode_readdir(&xdr, args, req); |
| 1706 | out: |
| 1707 | return status; |
| 1708 | } |
| 1709 | |
| 1710 | /* |
| 1711 | * Encode a READ request |
| 1712 | */ |
| 1713 | static int nfs4_xdr_enc_read(struct rpc_rqst *req, uint32_t *p, struct nfs_readargs *args) |
| 1714 | { |
| 1715 | struct rpc_auth *auth = req->rq_task->tk_auth; |
| 1716 | struct xdr_stream xdr; |
| 1717 | struct compound_hdr hdr = { |
| 1718 | .nops = 2, |
| 1719 | }; |
| 1720 | int replen, status; |
| 1721 | |
| 1722 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1723 | encode_compound_hdr(&xdr, &hdr); |
| 1724 | status = encode_putfh(&xdr, args->fh); |
| 1725 | if (status) |
| 1726 | goto out; |
| 1727 | status = encode_read(&xdr, args); |
| 1728 | if (status) |
| 1729 | goto out; |
| 1730 | |
| 1731 | /* set up reply kvec |
| 1732 | * toplevel status + taglen=0 + rescount + OP_PUTFH + status |
| 1733 | * + OP_READ + status + eof + datalen = 9 |
| 1734 | */ |
| 1735 | replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_read_sz) << 2; |
| 1736 | xdr_inline_pages(&req->rq_rcv_buf, replen, |
| 1737 | args->pages, args->pgbase, args->count); |
| 1738 | out: |
| 1739 | return status; |
| 1740 | } |
| 1741 | |
| 1742 | /* |
| 1743 | * Encode an SETATTR request |
| 1744 | */ |
| 1745 | static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, uint32_t *p, struct nfs_setattrargs *args) |
| 1746 | |
| 1747 | { |
| 1748 | struct xdr_stream xdr; |
| 1749 | struct compound_hdr hdr = { |
| 1750 | .nops = 3, |
| 1751 | }; |
| 1752 | int status; |
| 1753 | |
| 1754 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1755 | encode_compound_hdr(&xdr, &hdr); |
| 1756 | status = encode_putfh(&xdr, args->fh); |
| 1757 | if(status) |
| 1758 | goto out; |
| 1759 | status = encode_setattr(&xdr, args, args->server); |
| 1760 | if(status) |
| 1761 | goto out; |
| 1762 | status = encode_getfattr(&xdr, args->bitmask); |
| 1763 | out: |
| 1764 | return status; |
| 1765 | } |
| 1766 | |
| 1767 | /* |
J. Bruce Fields | 029d105 | 2005-06-22 17:16:22 +0000 | [diff] [blame] | 1768 | * Encode a GETACL request |
| 1769 | */ |
| 1770 | static int |
| 1771 | nfs4_xdr_enc_getacl(struct rpc_rqst *req, uint32_t *p, |
| 1772 | struct nfs_getaclargs *args) |
| 1773 | { |
| 1774 | struct xdr_stream xdr; |
| 1775 | struct rpc_auth *auth = req->rq_task->tk_auth; |
| 1776 | struct compound_hdr hdr = { |
| 1777 | .nops = 2, |
| 1778 | }; |
| 1779 | int replen, status; |
| 1780 | |
| 1781 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1782 | encode_compound_hdr(&xdr, &hdr); |
| 1783 | status = encode_putfh(&xdr, args->fh); |
| 1784 | if (status) |
| 1785 | goto out; |
| 1786 | status = encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0); |
| 1787 | /* set up reply buffer: */ |
| 1788 | replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_getacl_sz) << 2; |
| 1789 | xdr_inline_pages(&req->rq_rcv_buf, replen, |
| 1790 | args->acl_pages, args->acl_pgbase, args->acl_len); |
| 1791 | out: |
| 1792 | return status; |
| 1793 | } |
| 1794 | |
| 1795 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1796 | * Encode a WRITE request |
| 1797 | */ |
| 1798 | static int nfs4_xdr_enc_write(struct rpc_rqst *req, uint32_t *p, struct nfs_writeargs *args) |
| 1799 | { |
| 1800 | struct xdr_stream xdr; |
| 1801 | struct compound_hdr hdr = { |
| 1802 | .nops = 2, |
| 1803 | }; |
| 1804 | int status; |
| 1805 | |
| 1806 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1807 | encode_compound_hdr(&xdr, &hdr); |
| 1808 | status = encode_putfh(&xdr, args->fh); |
| 1809 | if (status) |
| 1810 | goto out; |
| 1811 | status = encode_write(&xdr, args); |
| 1812 | out: |
| 1813 | return status; |
| 1814 | } |
| 1815 | |
| 1816 | /* |
| 1817 | * a COMMIT request |
| 1818 | */ |
| 1819 | static int nfs4_xdr_enc_commit(struct rpc_rqst *req, uint32_t *p, struct nfs_writeargs *args) |
| 1820 | { |
| 1821 | struct xdr_stream xdr; |
| 1822 | struct compound_hdr hdr = { |
| 1823 | .nops = 2, |
| 1824 | }; |
| 1825 | int status; |
| 1826 | |
| 1827 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1828 | encode_compound_hdr(&xdr, &hdr); |
| 1829 | status = encode_putfh(&xdr, args->fh); |
| 1830 | if (status) |
| 1831 | goto out; |
| 1832 | status = encode_commit(&xdr, args); |
| 1833 | out: |
| 1834 | return status; |
| 1835 | } |
| 1836 | |
| 1837 | /* |
| 1838 | * FSINFO request |
| 1839 | */ |
| 1840 | static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, uint32_t *p, struct nfs4_fsinfo_arg *args) |
| 1841 | { |
| 1842 | struct xdr_stream xdr; |
| 1843 | struct compound_hdr hdr = { |
| 1844 | .nops = 2, |
| 1845 | }; |
| 1846 | int status; |
| 1847 | |
| 1848 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1849 | encode_compound_hdr(&xdr, &hdr); |
| 1850 | status = encode_putfh(&xdr, args->fh); |
| 1851 | if (!status) |
| 1852 | status = encode_fsinfo(&xdr, args->bitmask); |
| 1853 | return status; |
| 1854 | } |
| 1855 | |
| 1856 | /* |
| 1857 | * a PATHCONF request |
| 1858 | */ |
| 1859 | static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, uint32_t *p, const struct nfs4_pathconf_arg *args) |
| 1860 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1861 | struct xdr_stream xdr; |
| 1862 | struct compound_hdr hdr = { |
| 1863 | .nops = 2, |
| 1864 | }; |
| 1865 | int status; |
| 1866 | |
| 1867 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1868 | encode_compound_hdr(&xdr, &hdr); |
| 1869 | status = encode_putfh(&xdr, args->fh); |
| 1870 | if (!status) |
| 1871 | status = encode_getattr_one(&xdr, |
| 1872 | args->bitmask[0] & nfs4_pathconf_bitmap[0]); |
| 1873 | return status; |
| 1874 | } |
| 1875 | |
| 1876 | /* |
| 1877 | * a STATFS request |
| 1878 | */ |
| 1879 | static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, uint32_t *p, const struct nfs4_statfs_arg *args) |
| 1880 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1881 | struct xdr_stream xdr; |
| 1882 | struct compound_hdr hdr = { |
| 1883 | .nops = 2, |
| 1884 | }; |
| 1885 | int status; |
| 1886 | |
| 1887 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1888 | encode_compound_hdr(&xdr, &hdr); |
| 1889 | status = encode_putfh(&xdr, args->fh); |
| 1890 | if (status == 0) |
| 1891 | status = encode_getattr_two(&xdr, |
| 1892 | args->bitmask[0] & nfs4_statfs_bitmap[0], |
| 1893 | args->bitmask[1] & nfs4_statfs_bitmap[1]); |
| 1894 | return status; |
| 1895 | } |
| 1896 | |
| 1897 | /* |
| 1898 | * GETATTR_BITMAP request |
| 1899 | */ |
| 1900 | static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, uint32_t *p, const struct nfs_fh *fhandle) |
| 1901 | { |
| 1902 | struct xdr_stream xdr; |
| 1903 | struct compound_hdr hdr = { |
| 1904 | .nops = 2, |
| 1905 | }; |
| 1906 | int status; |
| 1907 | |
| 1908 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1909 | encode_compound_hdr(&xdr, &hdr); |
| 1910 | status = encode_putfh(&xdr, fhandle); |
| 1911 | if (status == 0) |
| 1912 | status = encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS| |
| 1913 | FATTR4_WORD0_LINK_SUPPORT| |
| 1914 | FATTR4_WORD0_SYMLINK_SUPPORT| |
| 1915 | FATTR4_WORD0_ACLSUPPORT); |
| 1916 | return status; |
| 1917 | } |
| 1918 | |
| 1919 | /* |
| 1920 | * a RENEW request |
| 1921 | */ |
| 1922 | static int nfs4_xdr_enc_renew(struct rpc_rqst *req, uint32_t *p, struct nfs4_client *clp) |
| 1923 | { |
| 1924 | struct xdr_stream xdr; |
| 1925 | struct compound_hdr hdr = { |
| 1926 | .nops = 1, |
| 1927 | }; |
| 1928 | |
| 1929 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1930 | encode_compound_hdr(&xdr, &hdr); |
| 1931 | return encode_renew(&xdr, clp); |
| 1932 | } |
| 1933 | |
| 1934 | /* |
| 1935 | * a SETCLIENTID request |
| 1936 | */ |
| 1937 | static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, uint32_t *p, struct nfs4_setclientid *sc) |
| 1938 | { |
| 1939 | struct xdr_stream xdr; |
| 1940 | struct compound_hdr hdr = { |
| 1941 | .nops = 1, |
| 1942 | }; |
| 1943 | |
| 1944 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1945 | encode_compound_hdr(&xdr, &hdr); |
| 1946 | return encode_setclientid(&xdr, sc); |
| 1947 | } |
| 1948 | |
| 1949 | /* |
| 1950 | * a SETCLIENTID_CONFIRM request |
| 1951 | */ |
| 1952 | static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, uint32_t *p, struct nfs4_client *clp) |
| 1953 | { |
| 1954 | struct xdr_stream xdr; |
| 1955 | struct compound_hdr hdr = { |
| 1956 | .nops = 3, |
| 1957 | }; |
| 1958 | const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; |
| 1959 | int status; |
| 1960 | |
| 1961 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1962 | encode_compound_hdr(&xdr, &hdr); |
| 1963 | status = encode_setclientid_confirm(&xdr, clp); |
| 1964 | if (!status) |
| 1965 | status = encode_putrootfh(&xdr); |
| 1966 | if (!status) |
| 1967 | status = encode_fsinfo(&xdr, lease_bitmap); |
| 1968 | return status; |
| 1969 | } |
| 1970 | |
| 1971 | /* |
| 1972 | * DELEGRETURN request |
| 1973 | */ |
| 1974 | static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, uint32_t *p, const struct nfs4_delegreturnargs *args) |
| 1975 | { |
| 1976 | struct xdr_stream xdr; |
| 1977 | struct compound_hdr hdr = { |
| 1978 | .nops = 2, |
| 1979 | }; |
| 1980 | int status; |
| 1981 | |
| 1982 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1983 | encode_compound_hdr(&xdr, &hdr); |
| 1984 | if ((status = encode_putfh(&xdr, args->fhandle)) == 0) |
| 1985 | status = encode_delegreturn(&xdr, args->stateid); |
| 1986 | return status; |
| 1987 | } |
| 1988 | |
| 1989 | /* |
| 1990 | * START OF "GENERIC" DECODE ROUTINES. |
| 1991 | * These may look a little ugly since they are imported from a "generic" |
| 1992 | * set of XDR encode/decode routines which are intended to be shared by |
| 1993 | * all of our NFSv4 implementations (OpenBSD, MacOS X...). |
| 1994 | * |
| 1995 | * If the pain of reading these is too great, it should be a straightforward |
| 1996 | * task to translate them into Linux-specific versions which are more |
| 1997 | * consistent with the style used in NFSv2/v3... |
| 1998 | */ |
| 1999 | #define READ32(x) (x) = ntohl(*p++) |
| 2000 | #define READ64(x) do { \ |
| 2001 | (x) = (u64)ntohl(*p++) << 32; \ |
| 2002 | (x) |= ntohl(*p++); \ |
| 2003 | } while (0) |
| 2004 | #define READTIME(x) do { \ |
| 2005 | p++; \ |
| 2006 | (x.tv_sec) = ntohl(*p++); \ |
| 2007 | (x.tv_nsec) = ntohl(*p++); \ |
| 2008 | } while (0) |
| 2009 | #define COPYMEM(x,nbytes) do { \ |
| 2010 | memcpy((x), p, nbytes); \ |
| 2011 | p += XDR_QUADLEN(nbytes); \ |
| 2012 | } while (0) |
| 2013 | |
| 2014 | #define READ_BUF(nbytes) do { \ |
| 2015 | p = xdr_inline_decode(xdr, nbytes); \ |
| 2016 | if (!p) { \ |
| 2017 | printk(KERN_WARNING "%s: reply buffer overflowed in line %d.", \ |
| 2018 | __FUNCTION__, __LINE__); \ |
| 2019 | return -EIO; \ |
| 2020 | } \ |
| 2021 | } while (0) |
| 2022 | |
| 2023 | static int decode_opaque_inline(struct xdr_stream *xdr, uint32_t *len, char **string) |
| 2024 | { |
| 2025 | uint32_t *p; |
| 2026 | |
| 2027 | READ_BUF(4); |
| 2028 | READ32(*len); |
| 2029 | READ_BUF(*len); |
| 2030 | *string = (char *)p; |
| 2031 | return 0; |
| 2032 | } |
| 2033 | |
| 2034 | static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) |
| 2035 | { |
| 2036 | uint32_t *p; |
| 2037 | |
| 2038 | READ_BUF(8); |
| 2039 | READ32(hdr->status); |
| 2040 | READ32(hdr->taglen); |
| 2041 | |
| 2042 | READ_BUF(hdr->taglen + 4); |
| 2043 | hdr->tag = (char *)p; |
| 2044 | p += XDR_QUADLEN(hdr->taglen); |
| 2045 | READ32(hdr->nops); |
| 2046 | return 0; |
| 2047 | } |
| 2048 | |
| 2049 | static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) |
| 2050 | { |
| 2051 | uint32_t *p; |
| 2052 | uint32_t opnum; |
| 2053 | int32_t nfserr; |
| 2054 | |
| 2055 | READ_BUF(8); |
| 2056 | READ32(opnum); |
| 2057 | if (opnum != expected) { |
| 2058 | printk(KERN_NOTICE |
| 2059 | "nfs4_decode_op_hdr: Server returned operation" |
| 2060 | " %d but we issued a request for %d\n", |
| 2061 | opnum, expected); |
| 2062 | return -EIO; |
| 2063 | } |
| 2064 | READ32(nfserr); |
| 2065 | if (nfserr != NFS_OK) |
| 2066 | return -nfs_stat_to_errno(nfserr); |
| 2067 | return 0; |
| 2068 | } |
| 2069 | |
| 2070 | /* Dummy routine */ |
| 2071 | static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs4_client *clp) |
| 2072 | { |
| 2073 | uint32_t *p; |
| 2074 | uint32_t strlen; |
| 2075 | char *str; |
| 2076 | |
| 2077 | READ_BUF(12); |
| 2078 | return decode_opaque_inline(xdr, &strlen, &str); |
| 2079 | } |
| 2080 | |
| 2081 | static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) |
| 2082 | { |
| 2083 | uint32_t bmlen, *p; |
| 2084 | |
| 2085 | READ_BUF(4); |
| 2086 | READ32(bmlen); |
| 2087 | |
| 2088 | bitmap[0] = bitmap[1] = 0; |
| 2089 | READ_BUF((bmlen << 2)); |
| 2090 | if (bmlen > 0) { |
| 2091 | READ32(bitmap[0]); |
| 2092 | if (bmlen > 1) |
| 2093 | READ32(bitmap[1]); |
| 2094 | } |
| 2095 | return 0; |
| 2096 | } |
| 2097 | |
| 2098 | static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, uint32_t **savep) |
| 2099 | { |
| 2100 | uint32_t *p; |
| 2101 | |
| 2102 | READ_BUF(4); |
| 2103 | READ32(*attrlen); |
| 2104 | *savep = xdr->p; |
| 2105 | return 0; |
| 2106 | } |
| 2107 | |
| 2108 | static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) |
| 2109 | { |
| 2110 | if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { |
| 2111 | decode_attr_bitmap(xdr, bitmask); |
| 2112 | bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; |
| 2113 | } else |
| 2114 | bitmask[0] = bitmask[1] = 0; |
| 2115 | dprintk("%s: bitmask=0x%x%x\n", __FUNCTION__, bitmask[0], bitmask[1]); |
| 2116 | return 0; |
| 2117 | } |
| 2118 | |
| 2119 | static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) |
| 2120 | { |
| 2121 | uint32_t *p; |
| 2122 | |
| 2123 | *type = 0; |
| 2124 | if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) |
| 2125 | return -EIO; |
| 2126 | if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { |
| 2127 | READ_BUF(4); |
| 2128 | READ32(*type); |
| 2129 | if (*type < NF4REG || *type > NF4NAMEDATTR) { |
| 2130 | dprintk("%s: bad type %d\n", __FUNCTION__, *type); |
| 2131 | return -EIO; |
| 2132 | } |
| 2133 | bitmap[0] &= ~FATTR4_WORD0_TYPE; |
| 2134 | } |
| 2135 | dprintk("%s: type=0%o\n", __FUNCTION__, nfs_type2fmt[*type].nfs2type); |
| 2136 | return 0; |
| 2137 | } |
| 2138 | |
| 2139 | static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) |
| 2140 | { |
| 2141 | uint32_t *p; |
| 2142 | |
| 2143 | *change = 0; |
| 2144 | if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) |
| 2145 | return -EIO; |
| 2146 | if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { |
| 2147 | READ_BUF(8); |
| 2148 | READ64(*change); |
| 2149 | bitmap[0] &= ~FATTR4_WORD0_CHANGE; |
| 2150 | } |
| 2151 | dprintk("%s: change attribute=%Lu\n", __FUNCTION__, |
| 2152 | (unsigned long long)*change); |
| 2153 | return 0; |
| 2154 | } |
| 2155 | |
| 2156 | static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) |
| 2157 | { |
| 2158 | uint32_t *p; |
| 2159 | |
| 2160 | *size = 0; |
| 2161 | if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) |
| 2162 | return -EIO; |
| 2163 | if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { |
| 2164 | READ_BUF(8); |
| 2165 | READ64(*size); |
| 2166 | bitmap[0] &= ~FATTR4_WORD0_SIZE; |
| 2167 | } |
| 2168 | dprintk("%s: file size=%Lu\n", __FUNCTION__, (unsigned long long)*size); |
| 2169 | return 0; |
| 2170 | } |
| 2171 | |
| 2172 | static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) |
| 2173 | { |
| 2174 | uint32_t *p; |
| 2175 | |
| 2176 | *res = 0; |
| 2177 | if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) |
| 2178 | return -EIO; |
| 2179 | if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { |
| 2180 | READ_BUF(4); |
| 2181 | READ32(*res); |
| 2182 | bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; |
| 2183 | } |
| 2184 | dprintk("%s: link support=%s\n", __FUNCTION__, *res == 0 ? "false" : "true"); |
| 2185 | return 0; |
| 2186 | } |
| 2187 | |
| 2188 | static int decode_attr_symlink_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_SYMLINK_SUPPORT - 1U))) |
| 2194 | return -EIO; |
| 2195 | if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { |
| 2196 | READ_BUF(4); |
| 2197 | READ32(*res); |
| 2198 | bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; |
| 2199 | } |
| 2200 | dprintk("%s: symlink support=%s\n", __FUNCTION__, *res == 0 ? "false" : "true"); |
| 2201 | return 0; |
| 2202 | } |
| 2203 | |
| 2204 | static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fsid *fsid) |
| 2205 | { |
| 2206 | uint32_t *p; |
| 2207 | |
| 2208 | fsid->major = 0; |
| 2209 | fsid->minor = 0; |
| 2210 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) |
| 2211 | return -EIO; |
| 2212 | if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { |
| 2213 | READ_BUF(16); |
| 2214 | READ64(fsid->major); |
| 2215 | READ64(fsid->minor); |
| 2216 | bitmap[0] &= ~FATTR4_WORD0_FSID; |
| 2217 | } |
| 2218 | dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __FUNCTION__, |
| 2219 | (unsigned long long)fsid->major, |
| 2220 | (unsigned long long)fsid->minor); |
| 2221 | return 0; |
| 2222 | } |
| 2223 | |
| 2224 | static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) |
| 2225 | { |
| 2226 | uint32_t *p; |
| 2227 | |
| 2228 | *res = 60; |
| 2229 | if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) |
| 2230 | return -EIO; |
| 2231 | if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { |
| 2232 | READ_BUF(4); |
| 2233 | READ32(*res); |
| 2234 | bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; |
| 2235 | } |
| 2236 | dprintk("%s: file size=%u\n", __FUNCTION__, (unsigned int)*res); |
| 2237 | return 0; |
| 2238 | } |
| 2239 | |
| 2240 | static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) |
| 2241 | { |
| 2242 | uint32_t *p; |
| 2243 | |
| 2244 | *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; |
| 2245 | if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) |
| 2246 | return -EIO; |
| 2247 | if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { |
| 2248 | READ_BUF(4); |
| 2249 | READ32(*res); |
| 2250 | bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; |
| 2251 | } |
| 2252 | dprintk("%s: ACLs supported=%u\n", __FUNCTION__, (unsigned int)*res); |
| 2253 | return 0; |
| 2254 | } |
| 2255 | |
| 2256 | static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) |
| 2257 | { |
| 2258 | uint32_t *p; |
| 2259 | |
| 2260 | *fileid = 0; |
| 2261 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) |
| 2262 | return -EIO; |
| 2263 | if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { |
| 2264 | READ_BUF(8); |
| 2265 | READ64(*fileid); |
| 2266 | bitmap[0] &= ~FATTR4_WORD0_FILEID; |
| 2267 | } |
| 2268 | dprintk("%s: fileid=%Lu\n", __FUNCTION__, (unsigned long long)*fileid); |
| 2269 | return 0; |
| 2270 | } |
| 2271 | |
| 2272 | static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
| 2273 | { |
| 2274 | uint32_t *p; |
| 2275 | int status = 0; |
| 2276 | |
| 2277 | *res = 0; |
| 2278 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) |
| 2279 | return -EIO; |
| 2280 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { |
| 2281 | READ_BUF(8); |
| 2282 | READ64(*res); |
| 2283 | bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; |
| 2284 | } |
| 2285 | dprintk("%s: files avail=%Lu\n", __FUNCTION__, (unsigned long long)*res); |
| 2286 | return status; |
| 2287 | } |
| 2288 | |
| 2289 | static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
| 2290 | { |
| 2291 | uint32_t *p; |
| 2292 | int status = 0; |
| 2293 | |
| 2294 | *res = 0; |
| 2295 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) |
| 2296 | return -EIO; |
| 2297 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { |
| 2298 | READ_BUF(8); |
| 2299 | READ64(*res); |
| 2300 | bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; |
| 2301 | } |
| 2302 | dprintk("%s: files free=%Lu\n", __FUNCTION__, (unsigned long long)*res); |
| 2303 | return status; |
| 2304 | } |
| 2305 | |
| 2306 | static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
| 2307 | { |
| 2308 | uint32_t *p; |
| 2309 | int status = 0; |
| 2310 | |
| 2311 | *res = 0; |
| 2312 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) |
| 2313 | return -EIO; |
| 2314 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { |
| 2315 | READ_BUF(8); |
| 2316 | READ64(*res); |
| 2317 | bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; |
| 2318 | } |
| 2319 | dprintk("%s: files total=%Lu\n", __FUNCTION__, (unsigned long long)*res); |
| 2320 | return status; |
| 2321 | } |
| 2322 | |
| 2323 | static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
| 2324 | { |
| 2325 | uint32_t *p; |
| 2326 | int status = 0; |
| 2327 | |
| 2328 | *res = 0; |
| 2329 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) |
| 2330 | return -EIO; |
| 2331 | if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { |
| 2332 | READ_BUF(8); |
| 2333 | READ64(*res); |
| 2334 | bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; |
| 2335 | } |
| 2336 | dprintk("%s: maxfilesize=%Lu\n", __FUNCTION__, (unsigned long long)*res); |
| 2337 | return status; |
| 2338 | } |
| 2339 | |
| 2340 | static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) |
| 2341 | { |
| 2342 | uint32_t *p; |
| 2343 | int status = 0; |
| 2344 | |
| 2345 | *maxlink = 1; |
| 2346 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) |
| 2347 | return -EIO; |
| 2348 | if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { |
| 2349 | READ_BUF(4); |
| 2350 | READ32(*maxlink); |
| 2351 | bitmap[0] &= ~FATTR4_WORD0_MAXLINK; |
| 2352 | } |
| 2353 | dprintk("%s: maxlink=%u\n", __FUNCTION__, *maxlink); |
| 2354 | return status; |
| 2355 | } |
| 2356 | |
| 2357 | static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) |
| 2358 | { |
| 2359 | uint32_t *p; |
| 2360 | int status = 0; |
| 2361 | |
| 2362 | *maxname = 1024; |
| 2363 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) |
| 2364 | return -EIO; |
| 2365 | if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { |
| 2366 | READ_BUF(4); |
| 2367 | READ32(*maxname); |
| 2368 | bitmap[0] &= ~FATTR4_WORD0_MAXNAME; |
| 2369 | } |
| 2370 | dprintk("%s: maxname=%u\n", __FUNCTION__, *maxname); |
| 2371 | return status; |
| 2372 | } |
| 2373 | |
| 2374 | static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) |
| 2375 | { |
| 2376 | uint32_t *p; |
| 2377 | int status = 0; |
| 2378 | |
| 2379 | *res = 1024; |
| 2380 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) |
| 2381 | return -EIO; |
| 2382 | if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { |
| 2383 | uint64_t maxread; |
| 2384 | READ_BUF(8); |
| 2385 | READ64(maxread); |
| 2386 | if (maxread > 0x7FFFFFFF) |
| 2387 | maxread = 0x7FFFFFFF; |
| 2388 | *res = (uint32_t)maxread; |
| 2389 | bitmap[0] &= ~FATTR4_WORD0_MAXREAD; |
| 2390 | } |
| 2391 | dprintk("%s: maxread=%lu\n", __FUNCTION__, (unsigned long)*res); |
| 2392 | return status; |
| 2393 | } |
| 2394 | |
| 2395 | static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) |
| 2396 | { |
| 2397 | uint32_t *p; |
| 2398 | int status = 0; |
| 2399 | |
| 2400 | *res = 1024; |
| 2401 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) |
| 2402 | return -EIO; |
| 2403 | if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { |
| 2404 | uint64_t maxwrite; |
| 2405 | READ_BUF(8); |
| 2406 | READ64(maxwrite); |
| 2407 | if (maxwrite > 0x7FFFFFFF) |
| 2408 | maxwrite = 0x7FFFFFFF; |
| 2409 | *res = (uint32_t)maxwrite; |
| 2410 | bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; |
| 2411 | } |
| 2412 | dprintk("%s: maxwrite=%lu\n", __FUNCTION__, (unsigned long)*res); |
| 2413 | return status; |
| 2414 | } |
| 2415 | |
| 2416 | static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *mode) |
| 2417 | { |
| 2418 | uint32_t *p; |
| 2419 | |
| 2420 | *mode = 0; |
| 2421 | if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) |
| 2422 | return -EIO; |
| 2423 | if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { |
| 2424 | READ_BUF(4); |
| 2425 | READ32(*mode); |
| 2426 | *mode &= ~S_IFMT; |
| 2427 | bitmap[1] &= ~FATTR4_WORD1_MODE; |
| 2428 | } |
| 2429 | dprintk("%s: file mode=0%o\n", __FUNCTION__, (unsigned int)*mode); |
| 2430 | return 0; |
| 2431 | } |
| 2432 | |
| 2433 | static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) |
| 2434 | { |
| 2435 | uint32_t *p; |
| 2436 | |
| 2437 | *nlink = 1; |
| 2438 | if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) |
| 2439 | return -EIO; |
| 2440 | if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { |
| 2441 | READ_BUF(4); |
| 2442 | READ32(*nlink); |
| 2443 | bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; |
| 2444 | } |
| 2445 | dprintk("%s: nlink=%u\n", __FUNCTION__, (unsigned int)*nlink); |
| 2446 | return 0; |
| 2447 | } |
| 2448 | |
| 2449 | static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_client *clp, int32_t *uid) |
| 2450 | { |
| 2451 | uint32_t len, *p; |
| 2452 | |
| 2453 | *uid = -2; |
| 2454 | if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) |
| 2455 | return -EIO; |
| 2456 | if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { |
| 2457 | READ_BUF(4); |
| 2458 | READ32(len); |
| 2459 | READ_BUF(len); |
| 2460 | if (len < XDR_MAX_NETOBJ) { |
| 2461 | if (nfs_map_name_to_uid(clp, (char *)p, len, uid) != 0) |
| 2462 | dprintk("%s: nfs_map_name_to_uid failed!\n", |
| 2463 | __FUNCTION__); |
| 2464 | } else |
| 2465 | printk(KERN_WARNING "%s: name too long (%u)!\n", |
| 2466 | __FUNCTION__, len); |
| 2467 | bitmap[1] &= ~FATTR4_WORD1_OWNER; |
| 2468 | } |
| 2469 | dprintk("%s: uid=%d\n", __FUNCTION__, (int)*uid); |
| 2470 | return 0; |
| 2471 | } |
| 2472 | |
| 2473 | static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_client *clp, int32_t *gid) |
| 2474 | { |
| 2475 | uint32_t len, *p; |
| 2476 | |
| 2477 | *gid = -2; |
| 2478 | if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) |
| 2479 | return -EIO; |
| 2480 | if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { |
| 2481 | READ_BUF(4); |
| 2482 | READ32(len); |
| 2483 | READ_BUF(len); |
| 2484 | if (len < XDR_MAX_NETOBJ) { |
| 2485 | if (nfs_map_group_to_gid(clp, (char *)p, len, gid) != 0) |
| 2486 | dprintk("%s: nfs_map_group_to_gid failed!\n", |
| 2487 | __FUNCTION__); |
| 2488 | } else |
| 2489 | printk(KERN_WARNING "%s: name too long (%u)!\n", |
| 2490 | __FUNCTION__, len); |
| 2491 | bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; |
| 2492 | } |
| 2493 | dprintk("%s: gid=%d\n", __FUNCTION__, (int)*gid); |
| 2494 | return 0; |
| 2495 | } |
| 2496 | |
| 2497 | static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) |
| 2498 | { |
| 2499 | uint32_t major = 0, minor = 0, *p; |
| 2500 | |
| 2501 | *rdev = MKDEV(0,0); |
| 2502 | if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) |
| 2503 | return -EIO; |
| 2504 | if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { |
| 2505 | dev_t tmp; |
| 2506 | |
| 2507 | READ_BUF(8); |
| 2508 | READ32(major); |
| 2509 | READ32(minor); |
| 2510 | tmp = MKDEV(major, minor); |
| 2511 | if (MAJOR(tmp) == major && MINOR(tmp) == minor) |
| 2512 | *rdev = tmp; |
| 2513 | bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; |
| 2514 | } |
| 2515 | dprintk("%s: rdev=(0x%x:0x%x)\n", __FUNCTION__, major, minor); |
| 2516 | return 0; |
| 2517 | } |
| 2518 | |
| 2519 | static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
| 2520 | { |
| 2521 | uint32_t *p; |
| 2522 | int status = 0; |
| 2523 | |
| 2524 | *res = 0; |
| 2525 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) |
| 2526 | return -EIO; |
| 2527 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { |
| 2528 | READ_BUF(8); |
| 2529 | READ64(*res); |
| 2530 | bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; |
| 2531 | } |
| 2532 | dprintk("%s: space avail=%Lu\n", __FUNCTION__, (unsigned long long)*res); |
| 2533 | return status; |
| 2534 | } |
| 2535 | |
| 2536 | static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
| 2537 | { |
| 2538 | uint32_t *p; |
| 2539 | int status = 0; |
| 2540 | |
| 2541 | *res = 0; |
| 2542 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) |
| 2543 | return -EIO; |
| 2544 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { |
| 2545 | READ_BUF(8); |
| 2546 | READ64(*res); |
| 2547 | bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; |
| 2548 | } |
| 2549 | dprintk("%s: space free=%Lu\n", __FUNCTION__, (unsigned long long)*res); |
| 2550 | return status; |
| 2551 | } |
| 2552 | |
| 2553 | static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
| 2554 | { |
| 2555 | uint32_t *p; |
| 2556 | int status = 0; |
| 2557 | |
| 2558 | *res = 0; |
| 2559 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) |
| 2560 | return -EIO; |
| 2561 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { |
| 2562 | READ_BUF(8); |
| 2563 | READ64(*res); |
| 2564 | bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; |
| 2565 | } |
| 2566 | dprintk("%s: space total=%Lu\n", __FUNCTION__, (unsigned long long)*res); |
| 2567 | return status; |
| 2568 | } |
| 2569 | |
| 2570 | static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) |
| 2571 | { |
| 2572 | uint32_t *p; |
| 2573 | |
| 2574 | *used = 0; |
| 2575 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) |
| 2576 | return -EIO; |
| 2577 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { |
| 2578 | READ_BUF(8); |
| 2579 | READ64(*used); |
| 2580 | bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; |
| 2581 | } |
| 2582 | dprintk("%s: space used=%Lu\n", __FUNCTION__, |
| 2583 | (unsigned long long)*used); |
| 2584 | return 0; |
| 2585 | } |
| 2586 | |
| 2587 | static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) |
| 2588 | { |
| 2589 | uint32_t *p; |
| 2590 | uint64_t sec; |
| 2591 | uint32_t nsec; |
| 2592 | |
| 2593 | READ_BUF(12); |
| 2594 | READ64(sec); |
| 2595 | READ32(nsec); |
| 2596 | time->tv_sec = (time_t)sec; |
| 2597 | time->tv_nsec = (long)nsec; |
| 2598 | return 0; |
| 2599 | } |
| 2600 | |
| 2601 | static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) |
| 2602 | { |
| 2603 | int status = 0; |
| 2604 | |
| 2605 | time->tv_sec = 0; |
| 2606 | time->tv_nsec = 0; |
| 2607 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) |
| 2608 | return -EIO; |
| 2609 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { |
| 2610 | status = decode_attr_time(xdr, time); |
| 2611 | bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; |
| 2612 | } |
| 2613 | dprintk("%s: atime=%ld\n", __FUNCTION__, (long)time->tv_sec); |
| 2614 | return status; |
| 2615 | } |
| 2616 | |
| 2617 | static int decode_attr_time_metadata(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_METADATA - 1U))) |
| 2624 | return -EIO; |
| 2625 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { |
| 2626 | status = decode_attr_time(xdr, time); |
| 2627 | bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; |
| 2628 | } |
| 2629 | dprintk("%s: ctime=%ld\n", __FUNCTION__, (long)time->tv_sec); |
| 2630 | return status; |
| 2631 | } |
| 2632 | |
| 2633 | static int decode_attr_time_modify(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_MODIFY - 1U))) |
| 2640 | return -EIO; |
| 2641 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { |
| 2642 | status = decode_attr_time(xdr, time); |
| 2643 | bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; |
| 2644 | } |
| 2645 | dprintk("%s: mtime=%ld\n", __FUNCTION__, (long)time->tv_sec); |
| 2646 | return status; |
| 2647 | } |
| 2648 | |
| 2649 | static int verify_attr_len(struct xdr_stream *xdr, uint32_t *savep, uint32_t attrlen) |
| 2650 | { |
| 2651 | unsigned int attrwords = XDR_QUADLEN(attrlen); |
| 2652 | unsigned int nwords = xdr->p - savep; |
| 2653 | |
| 2654 | if (unlikely(attrwords != nwords)) { |
| 2655 | printk(KERN_WARNING "%s: server returned incorrect attribute length: %u %c %u\n", |
| 2656 | __FUNCTION__, |
| 2657 | attrwords << 2, |
| 2658 | (attrwords < nwords) ? '<' : '>', |
| 2659 | nwords << 2); |
| 2660 | return -EIO; |
| 2661 | } |
| 2662 | return 0; |
| 2663 | } |
| 2664 | |
| 2665 | static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) |
| 2666 | { |
| 2667 | uint32_t *p; |
| 2668 | |
| 2669 | READ_BUF(20); |
| 2670 | READ32(cinfo->atomic); |
| 2671 | READ64(cinfo->before); |
| 2672 | READ64(cinfo->after); |
| 2673 | return 0; |
| 2674 | } |
| 2675 | |
| 2676 | static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) |
| 2677 | { |
| 2678 | uint32_t *p; |
| 2679 | uint32_t supp, acc; |
| 2680 | int status; |
| 2681 | |
| 2682 | status = decode_op_hdr(xdr, OP_ACCESS); |
| 2683 | if (status) |
| 2684 | return status; |
| 2685 | READ_BUF(8); |
| 2686 | READ32(supp); |
| 2687 | READ32(acc); |
| 2688 | access->supported = supp; |
| 2689 | access->access = acc; |
| 2690 | return 0; |
| 2691 | } |
| 2692 | |
| 2693 | static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) |
| 2694 | { |
| 2695 | uint32_t *p; |
| 2696 | int status; |
| 2697 | |
| 2698 | status = decode_op_hdr(xdr, OP_CLOSE); |
| 2699 | if (status) |
| 2700 | return status; |
| 2701 | READ_BUF(sizeof(res->stateid.data)); |
| 2702 | COPYMEM(res->stateid.data, sizeof(res->stateid.data)); |
| 2703 | return 0; |
| 2704 | } |
| 2705 | |
| 2706 | static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) |
| 2707 | { |
| 2708 | uint32_t *p; |
| 2709 | int status; |
| 2710 | |
| 2711 | status = decode_op_hdr(xdr, OP_COMMIT); |
| 2712 | if (status) |
| 2713 | return status; |
| 2714 | READ_BUF(8); |
| 2715 | COPYMEM(res->verf->verifier, 8); |
| 2716 | return 0; |
| 2717 | } |
| 2718 | |
| 2719 | static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) |
| 2720 | { |
| 2721 | uint32_t *p; |
| 2722 | uint32_t bmlen; |
| 2723 | int status; |
| 2724 | |
| 2725 | status = decode_op_hdr(xdr, OP_CREATE); |
| 2726 | if (status) |
| 2727 | return status; |
| 2728 | if ((status = decode_change_info(xdr, cinfo))) |
| 2729 | return status; |
| 2730 | READ_BUF(4); |
| 2731 | READ32(bmlen); |
| 2732 | READ_BUF(bmlen << 2); |
| 2733 | return 0; |
| 2734 | } |
| 2735 | |
| 2736 | static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) |
| 2737 | { |
| 2738 | uint32_t *savep; |
| 2739 | uint32_t attrlen, |
| 2740 | bitmap[2] = {0}; |
| 2741 | int status; |
| 2742 | |
| 2743 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) |
| 2744 | goto xdr_error; |
| 2745 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) |
| 2746 | goto xdr_error; |
| 2747 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) |
| 2748 | goto xdr_error; |
| 2749 | if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) |
| 2750 | goto xdr_error; |
| 2751 | if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) |
| 2752 | goto xdr_error; |
| 2753 | if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) |
| 2754 | goto xdr_error; |
| 2755 | if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) |
| 2756 | goto xdr_error; |
| 2757 | status = verify_attr_len(xdr, savep, attrlen); |
| 2758 | xdr_error: |
| 2759 | if (status != 0) |
| 2760 | printk(KERN_NOTICE "%s: xdr error %d!\n", __FUNCTION__, -status); |
| 2761 | return status; |
| 2762 | } |
| 2763 | |
| 2764 | static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) |
| 2765 | { |
| 2766 | uint32_t *savep; |
| 2767 | uint32_t attrlen, |
| 2768 | bitmap[2] = {0}; |
| 2769 | int status; |
| 2770 | |
| 2771 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) |
| 2772 | goto xdr_error; |
| 2773 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) |
| 2774 | goto xdr_error; |
| 2775 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) |
| 2776 | goto xdr_error; |
| 2777 | |
| 2778 | if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) |
| 2779 | goto xdr_error; |
| 2780 | if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) |
| 2781 | goto xdr_error; |
| 2782 | if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) |
| 2783 | goto xdr_error; |
| 2784 | if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) |
| 2785 | goto xdr_error; |
| 2786 | if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) |
| 2787 | goto xdr_error; |
| 2788 | if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) |
| 2789 | goto xdr_error; |
| 2790 | |
| 2791 | status = verify_attr_len(xdr, savep, attrlen); |
| 2792 | xdr_error: |
| 2793 | if (status != 0) |
| 2794 | printk(KERN_NOTICE "%s: xdr error %d!\n", __FUNCTION__, -status); |
| 2795 | return status; |
| 2796 | } |
| 2797 | |
| 2798 | static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) |
| 2799 | { |
| 2800 | uint32_t *savep; |
| 2801 | uint32_t attrlen, |
| 2802 | bitmap[2] = {0}; |
| 2803 | int status; |
| 2804 | |
| 2805 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) |
| 2806 | goto xdr_error; |
| 2807 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) |
| 2808 | goto xdr_error; |
| 2809 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) |
| 2810 | goto xdr_error; |
| 2811 | |
| 2812 | if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) |
| 2813 | goto xdr_error; |
| 2814 | if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) |
| 2815 | goto xdr_error; |
| 2816 | |
| 2817 | status = verify_attr_len(xdr, savep, attrlen); |
| 2818 | xdr_error: |
| 2819 | if (status != 0) |
| 2820 | printk(KERN_NOTICE "%s: xdr error %d!\n", __FUNCTION__, -status); |
| 2821 | return status; |
| 2822 | } |
| 2823 | |
| 2824 | static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, const struct nfs_server *server) |
| 2825 | { |
| 2826 | uint32_t *savep; |
| 2827 | uint32_t attrlen, |
| 2828 | bitmap[2] = {0}, |
| 2829 | type; |
| 2830 | int status, fmode = 0; |
| 2831 | |
| 2832 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) |
| 2833 | goto xdr_error; |
| 2834 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) |
| 2835 | goto xdr_error; |
| 2836 | |
| 2837 | fattr->bitmap[0] = bitmap[0]; |
| 2838 | fattr->bitmap[1] = bitmap[1]; |
| 2839 | |
| 2840 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) |
| 2841 | goto xdr_error; |
| 2842 | |
| 2843 | |
| 2844 | if ((status = decode_attr_type(xdr, bitmap, &type)) != 0) |
| 2845 | goto xdr_error; |
| 2846 | fattr->type = nfs_type2fmt[type].nfs2type; |
| 2847 | fmode = nfs_type2fmt[type].mode; |
| 2848 | |
| 2849 | if ((status = decode_attr_change(xdr, bitmap, &fattr->change_attr)) != 0) |
| 2850 | goto xdr_error; |
| 2851 | if ((status = decode_attr_size(xdr, bitmap, &fattr->size)) != 0) |
| 2852 | goto xdr_error; |
| 2853 | if ((status = decode_attr_fsid(xdr, bitmap, &fattr->fsid_u.nfs4)) != 0) |
| 2854 | goto xdr_error; |
| 2855 | if ((status = decode_attr_fileid(xdr, bitmap, &fattr->fileid)) != 0) |
| 2856 | goto xdr_error; |
| 2857 | if ((status = decode_attr_mode(xdr, bitmap, &fattr->mode)) != 0) |
| 2858 | goto xdr_error; |
| 2859 | fattr->mode |= fmode; |
| 2860 | if ((status = decode_attr_nlink(xdr, bitmap, &fattr->nlink)) != 0) |
| 2861 | goto xdr_error; |
| 2862 | if ((status = decode_attr_owner(xdr, bitmap, server->nfs4_state, &fattr->uid)) != 0) |
| 2863 | goto xdr_error; |
| 2864 | if ((status = decode_attr_group(xdr, bitmap, server->nfs4_state, &fattr->gid)) != 0) |
| 2865 | goto xdr_error; |
| 2866 | if ((status = decode_attr_rdev(xdr, bitmap, &fattr->rdev)) != 0) |
| 2867 | goto xdr_error; |
| 2868 | if ((status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used)) != 0) |
| 2869 | goto xdr_error; |
| 2870 | if ((status = decode_attr_time_access(xdr, bitmap, &fattr->atime)) != 0) |
| 2871 | goto xdr_error; |
| 2872 | if ((status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime)) != 0) |
| 2873 | goto xdr_error; |
| 2874 | if ((status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime)) != 0) |
| 2875 | goto xdr_error; |
Trond Myklebust | 3380114 | 2005-10-27 22:12:39 -0400 | [diff] [blame] | 2876 | if ((status = verify_attr_len(xdr, savep, attrlen)) == 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2877 | fattr->valid = NFS_ATTR_FATTR | NFS_ATTR_FATTR_V3 | NFS_ATTR_FATTR_V4; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2878 | xdr_error: |
| 2879 | if (status != 0) |
| 2880 | printk(KERN_NOTICE "%s: xdr error %d!\n", __FUNCTION__, -status); |
| 2881 | return status; |
| 2882 | } |
| 2883 | |
| 2884 | |
| 2885 | static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) |
| 2886 | { |
| 2887 | uint32_t *savep; |
| 2888 | uint32_t attrlen, bitmap[2]; |
| 2889 | int status; |
| 2890 | |
| 2891 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) |
| 2892 | goto xdr_error; |
| 2893 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) |
| 2894 | goto xdr_error; |
| 2895 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) |
| 2896 | goto xdr_error; |
| 2897 | |
| 2898 | fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ |
| 2899 | |
| 2900 | if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) |
| 2901 | goto xdr_error; |
| 2902 | if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) |
| 2903 | goto xdr_error; |
| 2904 | if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) |
| 2905 | goto xdr_error; |
| 2906 | fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; |
| 2907 | if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) |
| 2908 | goto xdr_error; |
| 2909 | fsinfo->wtpref = fsinfo->wtmax; |
| 2910 | |
| 2911 | status = verify_attr_len(xdr, savep, attrlen); |
| 2912 | xdr_error: |
| 2913 | if (status != 0) |
| 2914 | printk(KERN_NOTICE "%s: xdr error %d!\n", __FUNCTION__, -status); |
| 2915 | return status; |
| 2916 | } |
| 2917 | |
| 2918 | static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) |
| 2919 | { |
| 2920 | uint32_t *p; |
| 2921 | uint32_t len; |
| 2922 | int status; |
| 2923 | |
| 2924 | status = decode_op_hdr(xdr, OP_GETFH); |
| 2925 | if (status) |
| 2926 | return status; |
| 2927 | /* Zero handle first to allow comparisons */ |
| 2928 | memset(fh, 0, sizeof(*fh)); |
| 2929 | |
| 2930 | READ_BUF(4); |
| 2931 | READ32(len); |
| 2932 | if (len > NFS4_FHSIZE) |
| 2933 | return -EIO; |
| 2934 | fh->size = len; |
| 2935 | READ_BUF(len); |
| 2936 | COPYMEM(fh->data, len); |
| 2937 | return 0; |
| 2938 | } |
| 2939 | |
| 2940 | static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) |
| 2941 | { |
| 2942 | int status; |
| 2943 | |
| 2944 | status = decode_op_hdr(xdr, OP_LINK); |
| 2945 | if (status) |
| 2946 | return status; |
| 2947 | return decode_change_info(xdr, cinfo); |
| 2948 | } |
| 2949 | |
| 2950 | /* |
| 2951 | * We create the owner, so we know a proper owner.id length is 4. |
| 2952 | */ |
| 2953 | static int decode_lock_denied (struct xdr_stream *xdr, struct nfs_lock_denied *denied) |
| 2954 | { |
| 2955 | uint32_t *p; |
| 2956 | uint32_t namelen; |
| 2957 | |
| 2958 | READ_BUF(32); |
| 2959 | READ64(denied->offset); |
| 2960 | READ64(denied->length); |
| 2961 | READ32(denied->type); |
| 2962 | READ64(denied->owner.clientid); |
| 2963 | READ32(namelen); |
| 2964 | READ_BUF(namelen); |
| 2965 | if (namelen == 4) |
| 2966 | READ32(denied->owner.id); |
| 2967 | return -NFS4ERR_DENIED; |
| 2968 | } |
| 2969 | |
| 2970 | static int decode_lock(struct xdr_stream *xdr, struct nfs_lockres *res) |
| 2971 | { |
| 2972 | uint32_t *p; |
| 2973 | int status; |
| 2974 | |
| 2975 | status = decode_op_hdr(xdr, OP_LOCK); |
| 2976 | if (status == 0) { |
Trond Myklebust | 06735b3 | 2005-10-18 14:20:15 -0700 | [diff] [blame] | 2977 | READ_BUF(sizeof(res->u.stateid.data)); |
| 2978 | COPYMEM(res->u.stateid.data, sizeof(res->u.stateid.data)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2979 | } else if (status == -NFS4ERR_DENIED) |
| 2980 | return decode_lock_denied(xdr, &res->u.denied); |
| 2981 | return status; |
| 2982 | } |
| 2983 | |
| 2984 | static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockres *res) |
| 2985 | { |
| 2986 | int status; |
| 2987 | status = decode_op_hdr(xdr, OP_LOCKT); |
| 2988 | if (status == -NFS4ERR_DENIED) |
| 2989 | return decode_lock_denied(xdr, &res->u.denied); |
| 2990 | return status; |
| 2991 | } |
| 2992 | |
| 2993 | static int decode_locku(struct xdr_stream *xdr, struct nfs_lockres *res) |
| 2994 | { |
| 2995 | uint32_t *p; |
| 2996 | int status; |
| 2997 | |
| 2998 | status = decode_op_hdr(xdr, OP_LOCKU); |
| 2999 | if (status == 0) { |
Trond Myklebust | faf5f49 | 2005-10-18 14:20:15 -0700 | [diff] [blame] | 3000 | READ_BUF(sizeof(res->u.stateid.data)); |
| 3001 | COPYMEM(res->u.stateid.data, sizeof(res->u.stateid.data)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3002 | } |
| 3003 | return status; |
| 3004 | } |
| 3005 | |
| 3006 | static int decode_lookup(struct xdr_stream *xdr) |
| 3007 | { |
| 3008 | return decode_op_hdr(xdr, OP_LOOKUP); |
| 3009 | } |
| 3010 | |
| 3011 | /* This is too sick! */ |
| 3012 | static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) |
| 3013 | { |
| 3014 | uint32_t *p; |
| 3015 | uint32_t limit_type, nblocks, blocksize; |
| 3016 | |
| 3017 | READ_BUF(12); |
| 3018 | READ32(limit_type); |
| 3019 | switch (limit_type) { |
| 3020 | case 1: |
| 3021 | READ64(*maxsize); |
| 3022 | break; |
| 3023 | case 2: |
| 3024 | READ32(nblocks); |
| 3025 | READ32(blocksize); |
| 3026 | *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; |
| 3027 | } |
| 3028 | return 0; |
| 3029 | } |
| 3030 | |
| 3031 | static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) |
| 3032 | { |
| 3033 | uint32_t *p; |
| 3034 | uint32_t delegation_type; |
| 3035 | |
| 3036 | READ_BUF(4); |
| 3037 | READ32(delegation_type); |
| 3038 | if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { |
| 3039 | res->delegation_type = 0; |
| 3040 | return 0; |
| 3041 | } |
| 3042 | READ_BUF(20); |
| 3043 | COPYMEM(res->delegation.data, sizeof(res->delegation.data)); |
| 3044 | READ32(res->do_recall); |
| 3045 | switch (delegation_type) { |
| 3046 | case NFS4_OPEN_DELEGATE_READ: |
| 3047 | res->delegation_type = FMODE_READ; |
| 3048 | break; |
| 3049 | case NFS4_OPEN_DELEGATE_WRITE: |
| 3050 | res->delegation_type = FMODE_WRITE|FMODE_READ; |
| 3051 | if (decode_space_limit(xdr, &res->maxsize) < 0) |
| 3052 | return -EIO; |
| 3053 | } |
| 3054 | return decode_ace(xdr, NULL, res->server->nfs4_state); |
| 3055 | } |
| 3056 | |
| 3057 | static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) |
| 3058 | { |
| 3059 | uint32_t *p; |
| 3060 | uint32_t bmlen; |
| 3061 | int status; |
| 3062 | |
| 3063 | status = decode_op_hdr(xdr, OP_OPEN); |
| 3064 | if (status) |
| 3065 | return status; |
| 3066 | READ_BUF(sizeof(res->stateid.data)); |
| 3067 | COPYMEM(res->stateid.data, sizeof(res->stateid.data)); |
| 3068 | |
| 3069 | decode_change_info(xdr, &res->cinfo); |
| 3070 | |
| 3071 | READ_BUF(8); |
| 3072 | READ32(res->rflags); |
| 3073 | READ32(bmlen); |
| 3074 | if (bmlen > 10) |
| 3075 | goto xdr_error; |
| 3076 | |
| 3077 | READ_BUF(bmlen << 2); |
| 3078 | p += bmlen; |
| 3079 | return decode_delegation(xdr, res); |
| 3080 | xdr_error: |
| 3081 | printk(KERN_NOTICE "%s: xdr error!\n", __FUNCTION__); |
| 3082 | return -EIO; |
| 3083 | } |
| 3084 | |
| 3085 | static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) |
| 3086 | { |
| 3087 | uint32_t *p; |
| 3088 | int status; |
| 3089 | |
| 3090 | status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); |
| 3091 | if (status) |
| 3092 | return status; |
| 3093 | READ_BUF(sizeof(res->stateid.data)); |
| 3094 | COPYMEM(res->stateid.data, sizeof(res->stateid.data)); |
| 3095 | return 0; |
| 3096 | } |
| 3097 | |
| 3098 | static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) |
| 3099 | { |
| 3100 | uint32_t *p; |
| 3101 | int status; |
| 3102 | |
| 3103 | status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); |
| 3104 | if (status) |
| 3105 | return status; |
| 3106 | READ_BUF(sizeof(res->stateid.data)); |
| 3107 | COPYMEM(res->stateid.data, sizeof(res->stateid.data)); |
| 3108 | return 0; |
| 3109 | } |
| 3110 | |
| 3111 | static int decode_putfh(struct xdr_stream *xdr) |
| 3112 | { |
| 3113 | return decode_op_hdr(xdr, OP_PUTFH); |
| 3114 | } |
| 3115 | |
| 3116 | static int decode_putrootfh(struct xdr_stream *xdr) |
| 3117 | { |
| 3118 | return decode_op_hdr(xdr, OP_PUTROOTFH); |
| 3119 | } |
| 3120 | |
| 3121 | static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) |
| 3122 | { |
| 3123 | struct kvec *iov = req->rq_rcv_buf.head; |
| 3124 | uint32_t *p; |
| 3125 | uint32_t count, eof, recvd, hdrlen; |
| 3126 | int status; |
| 3127 | |
| 3128 | status = decode_op_hdr(xdr, OP_READ); |
| 3129 | if (status) |
| 3130 | return status; |
| 3131 | READ_BUF(8); |
| 3132 | READ32(eof); |
| 3133 | READ32(count); |
| 3134 | hdrlen = (u8 *) p - (u8 *) iov->iov_base; |
| 3135 | recvd = req->rq_rcv_buf.len - hdrlen; |
| 3136 | if (count > recvd) { |
| 3137 | printk(KERN_WARNING "NFS: server cheating in read reply: " |
| 3138 | "count %u > recvd %u\n", count, recvd); |
| 3139 | count = recvd; |
| 3140 | eof = 0; |
| 3141 | } |
| 3142 | xdr_read_pages(xdr, count); |
| 3143 | res->eof = eof; |
| 3144 | res->count = count; |
| 3145 | return 0; |
| 3146 | } |
| 3147 | |
| 3148 | static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) |
| 3149 | { |
| 3150 | struct xdr_buf *rcvbuf = &req->rq_rcv_buf; |
| 3151 | struct page *page = *rcvbuf->pages; |
| 3152 | struct kvec *iov = rcvbuf->head; |
| 3153 | unsigned int nr, pglen = rcvbuf->page_len; |
| 3154 | uint32_t *end, *entry, *p, *kaddr; |
| 3155 | uint32_t len, attrlen; |
| 3156 | int hdrlen, recvd, status; |
| 3157 | |
| 3158 | status = decode_op_hdr(xdr, OP_READDIR); |
| 3159 | if (status) |
| 3160 | return status; |
| 3161 | READ_BUF(8); |
| 3162 | COPYMEM(readdir->verifier.data, 8); |
Trond Myklebust | eadf459 | 2005-06-22 17:16:39 +0000 | [diff] [blame] | 3163 | dprintk("%s: verifier = 0x%x%x\n", |
| 3164 | __FUNCTION__, |
| 3165 | ((u32 *)readdir->verifier.data)[0], |
| 3166 | ((u32 *)readdir->verifier.data)[1]); |
| 3167 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3168 | |
| 3169 | hdrlen = (char *) p - (char *) iov->iov_base; |
| 3170 | recvd = rcvbuf->len - hdrlen; |
| 3171 | if (pglen > recvd) |
| 3172 | pglen = recvd; |
| 3173 | xdr_read_pages(xdr, pglen); |
| 3174 | |
| 3175 | BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE); |
| 3176 | kaddr = p = (uint32_t *) kmap_atomic(page, KM_USER0); |
| 3177 | end = (uint32_t *) ((char *)p + pglen + readdir->pgbase); |
| 3178 | entry = p; |
| 3179 | for (nr = 0; *p++; nr++) { |
| 3180 | if (p + 3 > end) |
| 3181 | goto short_pkt; |
Trond Myklebust | eadf459 | 2005-06-22 17:16:39 +0000 | [diff] [blame] | 3182 | dprintk("cookie = %Lu, ", *((unsigned long long *)p)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3183 | p += 2; /* cookie */ |
| 3184 | len = ntohl(*p++); /* filename length */ |
| 3185 | if (len > NFS4_MAXNAMLEN) { |
| 3186 | printk(KERN_WARNING "NFS: giant filename in readdir (len 0x%x)\n", len); |
| 3187 | goto err_unmap; |
| 3188 | } |
Trond Myklebust | eadf459 | 2005-06-22 17:16:39 +0000 | [diff] [blame] | 3189 | dprintk("filename = %*s\n", len, (char *)p); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3190 | p += XDR_QUADLEN(len); |
| 3191 | if (p + 1 > end) |
| 3192 | goto short_pkt; |
| 3193 | len = ntohl(*p++); /* bitmap length */ |
| 3194 | p += len; |
| 3195 | if (p + 1 > end) |
| 3196 | goto short_pkt; |
| 3197 | attrlen = XDR_QUADLEN(ntohl(*p++)); |
| 3198 | p += attrlen; /* attributes */ |
| 3199 | if (p + 2 > end) |
| 3200 | goto short_pkt; |
| 3201 | entry = p; |
| 3202 | } |
| 3203 | if (!nr && (entry[0] != 0 || entry[1] == 0)) |
| 3204 | goto short_pkt; |
| 3205 | out: |
| 3206 | kunmap_atomic(kaddr, KM_USER0); |
| 3207 | return 0; |
| 3208 | short_pkt: |
Trond Myklebust | eadf459 | 2005-06-22 17:16:39 +0000 | [diff] [blame] | 3209 | dprintk("%s: short packet at entry %d\n", __FUNCTION__, nr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3210 | entry[0] = entry[1] = 0; |
| 3211 | /* truncate listing ? */ |
| 3212 | if (!nr) { |
| 3213 | printk(KERN_NOTICE "NFS: readdir reply truncated!\n"); |
| 3214 | entry[1] = 1; |
| 3215 | } |
| 3216 | goto out; |
| 3217 | err_unmap: |
| 3218 | kunmap_atomic(kaddr, KM_USER0); |
| 3219 | return -errno_NFSERR_IO; |
| 3220 | } |
| 3221 | |
| 3222 | static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) |
| 3223 | { |
| 3224 | struct xdr_buf *rcvbuf = &req->rq_rcv_buf; |
| 3225 | struct kvec *iov = rcvbuf->head; |
| 3226 | int hdrlen, len, recvd; |
| 3227 | uint32_t *p; |
| 3228 | char *kaddr; |
| 3229 | int status; |
| 3230 | |
| 3231 | status = decode_op_hdr(xdr, OP_READLINK); |
| 3232 | if (status) |
| 3233 | return status; |
| 3234 | |
| 3235 | /* Convert length of symlink */ |
| 3236 | READ_BUF(4); |
| 3237 | READ32(len); |
| 3238 | if (len >= rcvbuf->page_len || len <= 0) { |
| 3239 | dprintk(KERN_WARNING "nfs: server returned giant symlink!\n"); |
| 3240 | return -ENAMETOOLONG; |
| 3241 | } |
| 3242 | hdrlen = (char *) xdr->p - (char *) iov->iov_base; |
| 3243 | recvd = req->rq_rcv_buf.len - hdrlen; |
| 3244 | if (recvd < len) { |
| 3245 | printk(KERN_WARNING "NFS: server cheating in readlink reply: " |
| 3246 | "count %u > recvd %u\n", len, recvd); |
| 3247 | return -EIO; |
| 3248 | } |
| 3249 | xdr_read_pages(xdr, len); |
| 3250 | /* |
| 3251 | * The XDR encode routine has set things up so that |
| 3252 | * the link text will be copied directly into the |
| 3253 | * buffer. We just have to do overflow-checking, |
| 3254 | * and and null-terminate the text (the VFS expects |
| 3255 | * null-termination). |
| 3256 | */ |
| 3257 | kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0); |
| 3258 | kaddr[len+rcvbuf->page_base] = '\0'; |
| 3259 | kunmap_atomic(kaddr, KM_USER0); |
| 3260 | return 0; |
| 3261 | } |
| 3262 | |
| 3263 | static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) |
| 3264 | { |
| 3265 | int status; |
| 3266 | |
| 3267 | status = decode_op_hdr(xdr, OP_REMOVE); |
| 3268 | if (status) |
| 3269 | goto out; |
| 3270 | status = decode_change_info(xdr, cinfo); |
| 3271 | out: |
| 3272 | return status; |
| 3273 | } |
| 3274 | |
| 3275 | static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, |
| 3276 | struct nfs4_change_info *new_cinfo) |
| 3277 | { |
| 3278 | int status; |
| 3279 | |
| 3280 | status = decode_op_hdr(xdr, OP_RENAME); |
| 3281 | if (status) |
| 3282 | goto out; |
| 3283 | if ((status = decode_change_info(xdr, old_cinfo))) |
| 3284 | goto out; |
| 3285 | status = decode_change_info(xdr, new_cinfo); |
| 3286 | out: |
| 3287 | return status; |
| 3288 | } |
| 3289 | |
| 3290 | static int decode_renew(struct xdr_stream *xdr) |
| 3291 | { |
| 3292 | return decode_op_hdr(xdr, OP_RENEW); |
| 3293 | } |
| 3294 | |
Trond Myklebust | 56ae19f | 2005-10-27 22:12:40 -0400 | [diff] [blame] | 3295 | static int |
| 3296 | decode_restorefh(struct xdr_stream *xdr) |
| 3297 | { |
| 3298 | return decode_op_hdr(xdr, OP_RESTOREFH); |
| 3299 | } |
| 3300 | |
J. Bruce Fields | 029d105 | 2005-06-22 17:16:22 +0000 | [diff] [blame] | 3301 | static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, |
| 3302 | size_t *acl_len) |
| 3303 | { |
| 3304 | uint32_t *savep; |
| 3305 | uint32_t attrlen, |
| 3306 | bitmap[2] = {0}; |
| 3307 | struct kvec *iov = req->rq_rcv_buf.head; |
| 3308 | int status; |
| 3309 | |
| 3310 | *acl_len = 0; |
| 3311 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) |
| 3312 | goto out; |
| 3313 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) |
| 3314 | goto out; |
| 3315 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) |
| 3316 | goto out; |
| 3317 | |
| 3318 | if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) |
| 3319 | return -EIO; |
| 3320 | if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { |
| 3321 | int hdrlen, recvd; |
| 3322 | |
| 3323 | /* We ignore &savep and don't do consistency checks on |
| 3324 | * the attr length. Let userspace figure it out.... */ |
| 3325 | hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; |
| 3326 | recvd = req->rq_rcv_buf.len - hdrlen; |
| 3327 | if (attrlen > recvd) { |
| 3328 | printk(KERN_WARNING "NFS: server cheating in getattr" |
| 3329 | " acl reply: attrlen %u > recvd %u\n", |
| 3330 | attrlen, recvd); |
| 3331 | return -EINVAL; |
| 3332 | } |
| 3333 | if (attrlen <= *acl_len) |
| 3334 | xdr_read_pages(xdr, attrlen); |
| 3335 | *acl_len = attrlen; |
J. Bruce Fields | 8c233cf | 2005-10-13 16:54:27 -0400 | [diff] [blame] | 3336 | } else |
| 3337 | status = -EOPNOTSUPP; |
J. Bruce Fields | 029d105 | 2005-06-22 17:16:22 +0000 | [diff] [blame] | 3338 | |
| 3339 | out: |
| 3340 | return status; |
| 3341 | } |
| 3342 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3343 | static int |
| 3344 | decode_savefh(struct xdr_stream *xdr) |
| 3345 | { |
| 3346 | return decode_op_hdr(xdr, OP_SAVEFH); |
| 3347 | } |
| 3348 | |
| 3349 | static int decode_setattr(struct xdr_stream *xdr, struct nfs_setattrres *res) |
| 3350 | { |
| 3351 | uint32_t *p; |
| 3352 | uint32_t bmlen; |
| 3353 | int status; |
| 3354 | |
| 3355 | |
| 3356 | status = decode_op_hdr(xdr, OP_SETATTR); |
| 3357 | if (status) |
| 3358 | return status; |
| 3359 | READ_BUF(4); |
| 3360 | READ32(bmlen); |
| 3361 | READ_BUF(bmlen << 2); |
| 3362 | return 0; |
| 3363 | } |
| 3364 | |
| 3365 | static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_client *clp) |
| 3366 | { |
| 3367 | uint32_t *p; |
| 3368 | uint32_t opnum; |
| 3369 | int32_t nfserr; |
| 3370 | |
| 3371 | READ_BUF(8); |
| 3372 | READ32(opnum); |
| 3373 | if (opnum != OP_SETCLIENTID) { |
| 3374 | printk(KERN_NOTICE |
| 3375 | "nfs4_decode_setclientid: Server returned operation" |
| 3376 | " %d\n", opnum); |
| 3377 | return -EIO; |
| 3378 | } |
| 3379 | READ32(nfserr); |
| 3380 | if (nfserr == NFS_OK) { |
| 3381 | READ_BUF(8 + sizeof(clp->cl_confirm.data)); |
| 3382 | READ64(clp->cl_clientid); |
| 3383 | COPYMEM(clp->cl_confirm.data, sizeof(clp->cl_confirm.data)); |
| 3384 | } else if (nfserr == NFSERR_CLID_INUSE) { |
| 3385 | uint32_t len; |
| 3386 | |
| 3387 | /* skip netid string */ |
| 3388 | READ_BUF(4); |
| 3389 | READ32(len); |
| 3390 | READ_BUF(len); |
| 3391 | |
| 3392 | /* skip uaddr string */ |
| 3393 | READ_BUF(4); |
| 3394 | READ32(len); |
| 3395 | READ_BUF(len); |
| 3396 | return -NFSERR_CLID_INUSE; |
| 3397 | } else |
| 3398 | return -nfs_stat_to_errno(nfserr); |
| 3399 | |
| 3400 | return 0; |
| 3401 | } |
| 3402 | |
| 3403 | static int decode_setclientid_confirm(struct xdr_stream *xdr) |
| 3404 | { |
| 3405 | return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); |
| 3406 | } |
| 3407 | |
| 3408 | static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) |
| 3409 | { |
| 3410 | uint32_t *p; |
| 3411 | int status; |
| 3412 | |
| 3413 | status = decode_op_hdr(xdr, OP_WRITE); |
| 3414 | if (status) |
| 3415 | return status; |
| 3416 | |
| 3417 | READ_BUF(16); |
| 3418 | READ32(res->count); |
| 3419 | READ32(res->verf->committed); |
| 3420 | COPYMEM(res->verf->verifier, 8); |
| 3421 | return 0; |
| 3422 | } |
| 3423 | |
| 3424 | static int decode_delegreturn(struct xdr_stream *xdr) |
| 3425 | { |
| 3426 | return decode_op_hdr(xdr, OP_DELEGRETURN); |
| 3427 | } |
| 3428 | |
| 3429 | /* |
| 3430 | * Decode OPEN_DOWNGRADE response |
| 3431 | */ |
| 3432 | static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_closeres *res) |
| 3433 | { |
| 3434 | struct xdr_stream xdr; |
| 3435 | struct compound_hdr hdr; |
| 3436 | int status; |
| 3437 | |
| 3438 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 3439 | status = decode_compound_hdr(&xdr, &hdr); |
| 3440 | if (status) |
| 3441 | goto out; |
| 3442 | status = decode_putfh(&xdr); |
| 3443 | if (status) |
| 3444 | goto out; |
| 3445 | status = decode_open_downgrade(&xdr, res); |
Trond Myklebust | 516a6af | 2005-10-27 22:12:41 -0400 | [diff] [blame] | 3446 | if (status != 0) |
| 3447 | goto out; |
| 3448 | decode_getfattr(&xdr, res->fattr, res->server); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3449 | out: |
| 3450 | return status; |
| 3451 | } |
| 3452 | |
| 3453 | /* |
| 3454 | * END OF "GENERIC" DECODE ROUTINES. |
| 3455 | */ |
| 3456 | |
| 3457 | /* |
| 3458 | * Decode ACCESS response |
| 3459 | */ |
| 3460 | static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_accessres *res) |
| 3461 | { |
| 3462 | struct xdr_stream xdr; |
| 3463 | struct compound_hdr hdr; |
| 3464 | int status; |
| 3465 | |
| 3466 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 3467 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) |
| 3468 | goto out; |
| 3469 | if ((status = decode_putfh(&xdr)) == 0) |
| 3470 | status = decode_access(&xdr, res); |
| 3471 | out: |
| 3472 | return status; |
| 3473 | } |
| 3474 | |
| 3475 | /* |
| 3476 | * Decode LOOKUP response |
| 3477 | */ |
| 3478 | static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_lookup_res *res) |
| 3479 | { |
| 3480 | struct xdr_stream xdr; |
| 3481 | struct compound_hdr hdr; |
| 3482 | int status; |
| 3483 | |
| 3484 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 3485 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) |
| 3486 | goto out; |
| 3487 | if ((status = decode_putfh(&xdr)) != 0) |
| 3488 | goto out; |
| 3489 | if ((status = decode_lookup(&xdr)) != 0) |
| 3490 | goto out; |
| 3491 | if ((status = decode_getfh(&xdr, res->fh)) != 0) |
| 3492 | goto out; |
| 3493 | status = decode_getfattr(&xdr, res->fattr, res->server); |
| 3494 | out: |
| 3495 | return status; |
| 3496 | } |
| 3497 | |
| 3498 | /* |
| 3499 | * Decode LOOKUP_ROOT response |
| 3500 | */ |
| 3501 | static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_lookup_res *res) |
| 3502 | { |
| 3503 | struct xdr_stream xdr; |
| 3504 | struct compound_hdr hdr; |
| 3505 | int status; |
| 3506 | |
| 3507 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 3508 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) |
| 3509 | goto out; |
| 3510 | if ((status = decode_putrootfh(&xdr)) != 0) |
| 3511 | goto out; |
| 3512 | if ((status = decode_getfh(&xdr, res->fh)) == 0) |
| 3513 | status = decode_getfattr(&xdr, res->fattr, res->server); |
| 3514 | out: |
| 3515 | return status; |
| 3516 | } |
| 3517 | |
| 3518 | /* |
| 3519 | * Decode REMOVE response |
| 3520 | */ |
Trond Myklebust | 16e4295 | 2005-10-27 22:12:44 -0400 | [diff] [blame^] | 3521 | static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_remove_res *res) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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; |
Trond Myklebust | 16e4295 | 2005-10-27 22:12:44 -0400 | [diff] [blame^] | 3530 | if ((status = decode_putfh(&xdr)) != 0) |
| 3531 | goto out; |
| 3532 | if ((status = decode_remove(&xdr, &res->cinfo)) != 0) |
| 3533 | goto out; |
| 3534 | decode_getfattr(&xdr, res->dir_attr, res->server); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3535 | out: |
| 3536 | return status; |
| 3537 | } |
| 3538 | |
| 3539 | /* |
| 3540 | * Decode RENAME response |
| 3541 | */ |
| 3542 | static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_rename_res *res) |
| 3543 | { |
| 3544 | struct xdr_stream xdr; |
| 3545 | struct compound_hdr hdr; |
| 3546 | int status; |
| 3547 | |
| 3548 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 3549 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) |
| 3550 | goto out; |
| 3551 | if ((status = decode_putfh(&xdr)) != 0) |
| 3552 | goto out; |
| 3553 | if ((status = decode_savefh(&xdr)) != 0) |
| 3554 | goto out; |
| 3555 | if ((status = decode_putfh(&xdr)) != 0) |
| 3556 | goto out; |
Trond Myklebust | 6caf2c8 | 2005-10-27 22:12:43 -0400 | [diff] [blame] | 3557 | if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0) |
| 3558 | goto out; |
| 3559 | /* Current FH is target directory */ |
| 3560 | if (decode_getfattr(&xdr, res->new_fattr, res->server) != 0) |
| 3561 | goto out; |
| 3562 | if ((status = decode_restorefh(&xdr)) != 0) |
| 3563 | goto out; |
| 3564 | decode_getfattr(&xdr, res->old_fattr, res->server); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3565 | out: |
| 3566 | return status; |
| 3567 | } |
| 3568 | |
| 3569 | /* |
| 3570 | * Decode LINK response |
| 3571 | */ |
Trond Myklebust | 91ba2ee | 2005-10-27 22:12:42 -0400 | [diff] [blame] | 3572 | static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_link_res *res) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3573 | { |
| 3574 | struct xdr_stream xdr; |
| 3575 | struct compound_hdr hdr; |
| 3576 | int status; |
| 3577 | |
| 3578 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 3579 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) |
| 3580 | goto out; |
| 3581 | if ((status = decode_putfh(&xdr)) != 0) |
| 3582 | goto out; |
| 3583 | if ((status = decode_savefh(&xdr)) != 0) |
| 3584 | goto out; |
| 3585 | if ((status = decode_putfh(&xdr)) != 0) |
| 3586 | goto out; |
Trond Myklebust | 91ba2ee | 2005-10-27 22:12:42 -0400 | [diff] [blame] | 3587 | if ((status = decode_link(&xdr, &res->cinfo)) != 0) |
| 3588 | goto out; |
| 3589 | /* |
| 3590 | * Note order: OP_LINK leaves the directory as the current |
| 3591 | * filehandle. |
| 3592 | */ |
| 3593 | if (decode_getfattr(&xdr, res->dir_attr, res->server) != 0) |
| 3594 | goto out; |
| 3595 | if ((status = decode_restorefh(&xdr)) != 0) |
| 3596 | goto out; |
| 3597 | decode_getfattr(&xdr, res->fattr, res->server); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3598 | out: |
| 3599 | return status; |
| 3600 | } |
| 3601 | |
| 3602 | /* |
| 3603 | * Decode CREATE response |
| 3604 | */ |
| 3605 | static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_create_res *res) |
| 3606 | { |
| 3607 | struct xdr_stream xdr; |
| 3608 | struct compound_hdr hdr; |
| 3609 | int status; |
| 3610 | |
| 3611 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 3612 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) |
| 3613 | goto out; |
| 3614 | if ((status = decode_putfh(&xdr)) != 0) |
| 3615 | goto out; |
Trond Myklebust | 56ae19f | 2005-10-27 22:12:40 -0400 | [diff] [blame] | 3616 | if ((status = decode_savefh(&xdr)) != 0) |
| 3617 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3618 | if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0) |
| 3619 | goto out; |
| 3620 | if ((status = decode_getfh(&xdr, res->fh)) != 0) |
| 3621 | goto out; |
Trond Myklebust | 56ae19f | 2005-10-27 22:12:40 -0400 | [diff] [blame] | 3622 | if (decode_getfattr(&xdr, res->fattr, res->server) != 0) |
| 3623 | goto out; |
| 3624 | if ((status = decode_restorefh(&xdr)) != 0) |
| 3625 | goto out; |
| 3626 | decode_getfattr(&xdr, res->dir_fattr, res->server); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3627 | out: |
| 3628 | return status; |
| 3629 | } |
| 3630 | |
| 3631 | /* |
| 3632 | * Decode SYMLINK response |
| 3633 | */ |
| 3634 | static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_create_res *res) |
| 3635 | { |
| 3636 | return nfs4_xdr_dec_create(rqstp, p, res); |
| 3637 | } |
| 3638 | |
| 3639 | /* |
| 3640 | * Decode GETATTR response |
| 3641 | */ |
| 3642 | static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_getattr_res *res) |
| 3643 | { |
| 3644 | struct xdr_stream xdr; |
| 3645 | struct compound_hdr hdr; |
| 3646 | int status; |
| 3647 | |
| 3648 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 3649 | status = decode_compound_hdr(&xdr, &hdr); |
| 3650 | if (status) |
| 3651 | goto out; |
| 3652 | status = decode_putfh(&xdr); |
| 3653 | if (status) |
| 3654 | goto out; |
| 3655 | status = decode_getfattr(&xdr, res->fattr, res->server); |
| 3656 | out: |
| 3657 | return status; |
| 3658 | |
| 3659 | } |
| 3660 | |
J. Bruce Fields | 23ec696 | 2005-06-22 17:16:22 +0000 | [diff] [blame] | 3661 | /* |
| 3662 | * Encode an SETACL request |
| 3663 | */ |
| 3664 | static int |
| 3665 | nfs4_xdr_enc_setacl(struct rpc_rqst *req, uint32_t *p, struct nfs_setaclargs *args) |
| 3666 | { |
| 3667 | struct xdr_stream xdr; |
| 3668 | struct compound_hdr hdr = { |
| 3669 | .nops = 2, |
| 3670 | }; |
| 3671 | int status; |
| 3672 | |
| 3673 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 3674 | encode_compound_hdr(&xdr, &hdr); |
| 3675 | status = encode_putfh(&xdr, args->fh); |
| 3676 | if (status) |
| 3677 | goto out; |
| 3678 | status = encode_setacl(&xdr, args); |
| 3679 | out: |
| 3680 | return status; |
| 3681 | } |
| 3682 | /* |
| 3683 | * Decode SETACL response |
| 3684 | */ |
| 3685 | static int |
| 3686 | nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, uint32_t *p, void *res) |
| 3687 | { |
| 3688 | struct xdr_stream xdr; |
| 3689 | struct compound_hdr hdr; |
| 3690 | int status; |
| 3691 | |
| 3692 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 3693 | status = decode_compound_hdr(&xdr, &hdr); |
| 3694 | if (status) |
| 3695 | goto out; |
| 3696 | status = decode_putfh(&xdr); |
| 3697 | if (status) |
| 3698 | goto out; |
| 3699 | status = decode_setattr(&xdr, res); |
| 3700 | out: |
| 3701 | return status; |
| 3702 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3703 | |
| 3704 | /* |
J. Bruce Fields | 029d105 | 2005-06-22 17:16:22 +0000 | [diff] [blame] | 3705 | * Decode GETACL response |
| 3706 | */ |
| 3707 | static int |
| 3708 | nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, uint32_t *p, size_t *acl_len) |
| 3709 | { |
| 3710 | struct xdr_stream xdr; |
| 3711 | struct compound_hdr hdr; |
| 3712 | int status; |
| 3713 | |
| 3714 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 3715 | status = decode_compound_hdr(&xdr, &hdr); |
| 3716 | if (status) |
| 3717 | goto out; |
| 3718 | status = decode_putfh(&xdr); |
| 3719 | if (status) |
| 3720 | goto out; |
| 3721 | status = decode_getacl(&xdr, rqstp, acl_len); |
| 3722 | |
| 3723 | out: |
| 3724 | return status; |
| 3725 | } |
| 3726 | |
| 3727 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3728 | * Decode CLOSE response |
| 3729 | */ |
| 3730 | static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_closeres *res) |
| 3731 | { |
| 3732 | struct xdr_stream xdr; |
| 3733 | struct compound_hdr hdr; |
| 3734 | int status; |
| 3735 | |
| 3736 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 3737 | status = decode_compound_hdr(&xdr, &hdr); |
| 3738 | if (status) |
| 3739 | goto out; |
| 3740 | status = decode_putfh(&xdr); |
| 3741 | if (status) |
| 3742 | goto out; |
| 3743 | status = decode_close(&xdr, res); |
Trond Myklebust | 516a6af | 2005-10-27 22:12:41 -0400 | [diff] [blame] | 3744 | if (status != 0) |
| 3745 | goto out; |
| 3746 | /* |
| 3747 | * Note: Server may do delete on close for this file |
| 3748 | * in which case the getattr call will fail with |
| 3749 | * an ESTALE error. Shouldn't be a problem, |
| 3750 | * though, since fattr->valid will remain unset. |
| 3751 | */ |
| 3752 | decode_getfattr(&xdr, res->fattr, res->server); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3753 | out: |
| 3754 | return status; |
| 3755 | } |
| 3756 | |
| 3757 | /* |
| 3758 | * Decode OPEN response |
| 3759 | */ |
| 3760 | static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_openres *res) |
| 3761 | { |
| 3762 | struct xdr_stream xdr; |
| 3763 | struct compound_hdr hdr; |
| 3764 | int status; |
| 3765 | |
| 3766 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 3767 | status = decode_compound_hdr(&xdr, &hdr); |
| 3768 | if (status) |
| 3769 | goto out; |
| 3770 | status = decode_putfh(&xdr); |
| 3771 | if (status) |
| 3772 | goto out; |
Trond Myklebust | 56ae19f | 2005-10-27 22:12:40 -0400 | [diff] [blame] | 3773 | status = decode_savefh(&xdr); |
| 3774 | if (status) |
| 3775 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3776 | status = decode_open(&xdr, res); |
| 3777 | if (status) |
| 3778 | goto out; |
| 3779 | status = decode_getfh(&xdr, &res->fh); |
| 3780 | if (status) |
| 3781 | goto out; |
Trond Myklebust | 56ae19f | 2005-10-27 22:12:40 -0400 | [diff] [blame] | 3782 | if (decode_getfattr(&xdr, res->f_attr, res->server) != 0) |
| 3783 | goto out; |
| 3784 | if ((status = decode_restorefh(&xdr)) != 0) |
| 3785 | goto out; |
| 3786 | decode_getfattr(&xdr, res->dir_attr, res->server); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3787 | out: |
| 3788 | return status; |
| 3789 | } |
| 3790 | |
| 3791 | /* |
| 3792 | * Decode OPEN_CONFIRM response |
| 3793 | */ |
| 3794 | static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_open_confirmres *res) |
| 3795 | { |
| 3796 | struct xdr_stream xdr; |
| 3797 | struct compound_hdr hdr; |
| 3798 | int status; |
| 3799 | |
| 3800 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 3801 | status = decode_compound_hdr(&xdr, &hdr); |
| 3802 | if (status) |
| 3803 | goto out; |
| 3804 | status = decode_putfh(&xdr); |
| 3805 | if (status) |
| 3806 | goto out; |
| 3807 | status = decode_open_confirm(&xdr, res); |
| 3808 | out: |
| 3809 | return status; |
| 3810 | } |
| 3811 | |
| 3812 | /* |
| 3813 | * Decode OPEN response |
| 3814 | */ |
| 3815 | static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_openres *res) |
| 3816 | { |
| 3817 | struct xdr_stream xdr; |
| 3818 | struct compound_hdr hdr; |
| 3819 | int status; |
| 3820 | |
| 3821 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 3822 | status = decode_compound_hdr(&xdr, &hdr); |
| 3823 | if (status) |
| 3824 | goto out; |
| 3825 | status = decode_putfh(&xdr); |
| 3826 | if (status) |
| 3827 | goto out; |
| 3828 | status = decode_open(&xdr, res); |
| 3829 | out: |
| 3830 | return status; |
| 3831 | } |
| 3832 | |
| 3833 | /* |
| 3834 | * Decode SETATTR response |
| 3835 | */ |
| 3836 | static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_setattrres *res) |
| 3837 | { |
| 3838 | struct xdr_stream xdr; |
| 3839 | struct compound_hdr hdr; |
| 3840 | int status; |
| 3841 | |
| 3842 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 3843 | status = decode_compound_hdr(&xdr, &hdr); |
| 3844 | if (status) |
| 3845 | goto out; |
| 3846 | status = decode_putfh(&xdr); |
| 3847 | if (status) |
| 3848 | goto out; |
| 3849 | status = decode_setattr(&xdr, res); |
| 3850 | if (status) |
| 3851 | goto out; |
| 3852 | status = decode_getfattr(&xdr, res->fattr, res->server); |
| 3853 | if (status == NFS4ERR_DELAY) |
| 3854 | status = 0; |
| 3855 | out: |
| 3856 | return status; |
| 3857 | } |
| 3858 | |
| 3859 | /* |
| 3860 | * Decode LOCK response |
| 3861 | */ |
| 3862 | static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_lockres *res) |
| 3863 | { |
| 3864 | struct xdr_stream xdr; |
| 3865 | struct compound_hdr hdr; |
| 3866 | int status; |
| 3867 | |
| 3868 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 3869 | status = decode_compound_hdr(&xdr, &hdr); |
| 3870 | if (status) |
| 3871 | goto out; |
| 3872 | status = decode_putfh(&xdr); |
| 3873 | if (status) |
| 3874 | goto out; |
| 3875 | status = decode_lock(&xdr, res); |
| 3876 | out: |
| 3877 | return status; |
| 3878 | } |
| 3879 | |
| 3880 | /* |
| 3881 | * Decode LOCKT response |
| 3882 | */ |
| 3883 | static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_lockres *res) |
| 3884 | { |
| 3885 | struct xdr_stream xdr; |
| 3886 | struct compound_hdr hdr; |
| 3887 | int status; |
| 3888 | |
| 3889 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 3890 | status = decode_compound_hdr(&xdr, &hdr); |
| 3891 | if (status) |
| 3892 | goto out; |
| 3893 | status = decode_putfh(&xdr); |
| 3894 | if (status) |
| 3895 | goto out; |
| 3896 | status = decode_lockt(&xdr, res); |
| 3897 | out: |
| 3898 | return status; |
| 3899 | } |
| 3900 | |
| 3901 | /* |
| 3902 | * Decode LOCKU response |
| 3903 | */ |
| 3904 | static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_lockres *res) |
| 3905 | { |
| 3906 | struct xdr_stream xdr; |
| 3907 | struct compound_hdr hdr; |
| 3908 | int status; |
| 3909 | |
| 3910 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 3911 | status = decode_compound_hdr(&xdr, &hdr); |
| 3912 | if (status) |
| 3913 | goto out; |
| 3914 | status = decode_putfh(&xdr); |
| 3915 | if (status) |
| 3916 | goto out; |
| 3917 | status = decode_locku(&xdr, res); |
| 3918 | out: |
| 3919 | return status; |
| 3920 | } |
| 3921 | |
| 3922 | /* |
| 3923 | * Decode READLINK response |
| 3924 | */ |
| 3925 | static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, uint32_t *p, void *res) |
| 3926 | { |
| 3927 | struct xdr_stream xdr; |
| 3928 | struct compound_hdr hdr; |
| 3929 | int status; |
| 3930 | |
| 3931 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 3932 | status = decode_compound_hdr(&xdr, &hdr); |
| 3933 | if (status) |
| 3934 | goto out; |
| 3935 | status = decode_putfh(&xdr); |
| 3936 | if (status) |
| 3937 | goto out; |
| 3938 | status = decode_readlink(&xdr, rqstp); |
| 3939 | out: |
| 3940 | return status; |
| 3941 | } |
| 3942 | |
| 3943 | /* |
| 3944 | * Decode READDIR response |
| 3945 | */ |
| 3946 | static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_readdir_res *res) |
| 3947 | { |
| 3948 | struct xdr_stream xdr; |
| 3949 | struct compound_hdr hdr; |
| 3950 | int status; |
| 3951 | |
| 3952 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 3953 | status = decode_compound_hdr(&xdr, &hdr); |
| 3954 | if (status) |
| 3955 | goto out; |
| 3956 | status = decode_putfh(&xdr); |
| 3957 | if (status) |
| 3958 | goto out; |
| 3959 | status = decode_readdir(&xdr, rqstp, res); |
| 3960 | out: |
| 3961 | return status; |
| 3962 | } |
| 3963 | |
| 3964 | /* |
| 3965 | * Decode Read response |
| 3966 | */ |
| 3967 | static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_readres *res) |
| 3968 | { |
| 3969 | struct xdr_stream xdr; |
| 3970 | struct compound_hdr hdr; |
| 3971 | int status; |
| 3972 | |
| 3973 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 3974 | status = decode_compound_hdr(&xdr, &hdr); |
| 3975 | if (status) |
| 3976 | goto out; |
| 3977 | status = decode_putfh(&xdr); |
| 3978 | if (status) |
| 3979 | goto out; |
| 3980 | status = decode_read(&xdr, rqstp, res); |
| 3981 | if (!status) |
| 3982 | status = res->count; |
| 3983 | out: |
| 3984 | return status; |
| 3985 | } |
| 3986 | |
| 3987 | /* |
| 3988 | * Decode WRITE response |
| 3989 | */ |
| 3990 | static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_writeres *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_write(&xdr, res); |
| 4004 | if (!status) |
| 4005 | status = res->count; |
| 4006 | out: |
| 4007 | return status; |
| 4008 | } |
| 4009 | |
| 4010 | /* |
| 4011 | * Decode COMMIT response |
| 4012 | */ |
| 4013 | static int nfs4_xdr_dec_commit(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_commit(&xdr, res); |
| 4027 | out: |
| 4028 | return status; |
| 4029 | } |
| 4030 | |
| 4031 | /* |
| 4032 | * FSINFO request |
| 4033 | */ |
| 4034 | static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, uint32_t *p, struct nfs_fsinfo *fsinfo) |
| 4035 | { |
| 4036 | struct xdr_stream xdr; |
| 4037 | struct compound_hdr hdr; |
| 4038 | int status; |
| 4039 | |
| 4040 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); |
| 4041 | status = decode_compound_hdr(&xdr, &hdr); |
| 4042 | if (!status) |
| 4043 | status = decode_putfh(&xdr); |
| 4044 | if (!status) |
| 4045 | status = decode_fsinfo(&xdr, fsinfo); |
| 4046 | if (!status) |
| 4047 | status = -nfs_stat_to_errno(hdr.status); |
| 4048 | return status; |
| 4049 | } |
| 4050 | |
| 4051 | /* |
| 4052 | * PATHCONF request |
| 4053 | */ |
| 4054 | static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, uint32_t *p, struct nfs_pathconf *pathconf) |
| 4055 | { |
| 4056 | struct xdr_stream xdr; |
| 4057 | struct compound_hdr hdr; |
| 4058 | int status; |
| 4059 | |
| 4060 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); |
| 4061 | status = decode_compound_hdr(&xdr, &hdr); |
| 4062 | if (!status) |
| 4063 | status = decode_putfh(&xdr); |
| 4064 | if (!status) |
| 4065 | status = decode_pathconf(&xdr, pathconf); |
| 4066 | return status; |
| 4067 | } |
| 4068 | |
| 4069 | /* |
| 4070 | * STATFS request |
| 4071 | */ |
| 4072 | static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, uint32_t *p, struct nfs_fsstat *fsstat) |
| 4073 | { |
| 4074 | struct xdr_stream xdr; |
| 4075 | struct compound_hdr hdr; |
| 4076 | int status; |
| 4077 | |
| 4078 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); |
| 4079 | status = decode_compound_hdr(&xdr, &hdr); |
| 4080 | if (!status) |
| 4081 | status = decode_putfh(&xdr); |
| 4082 | if (!status) |
| 4083 | status = decode_statfs(&xdr, fsstat); |
| 4084 | return status; |
| 4085 | } |
| 4086 | |
| 4087 | /* |
| 4088 | * GETATTR_BITMAP request |
| 4089 | */ |
| 4090 | static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, uint32_t *p, struct nfs4_server_caps_res *res) |
| 4091 | { |
| 4092 | struct xdr_stream xdr; |
| 4093 | struct compound_hdr hdr; |
| 4094 | int status; |
| 4095 | |
| 4096 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); |
| 4097 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) |
| 4098 | goto out; |
| 4099 | if ((status = decode_putfh(&xdr)) != 0) |
| 4100 | goto out; |
| 4101 | status = decode_server_caps(&xdr, res); |
| 4102 | out: |
| 4103 | return status; |
| 4104 | } |
| 4105 | |
| 4106 | /* |
| 4107 | * Decode RENEW response |
| 4108 | */ |
| 4109 | static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, uint32_t *p, void *dummy) |
| 4110 | { |
| 4111 | struct xdr_stream xdr; |
| 4112 | struct compound_hdr hdr; |
| 4113 | int status; |
| 4114 | |
| 4115 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 4116 | status = decode_compound_hdr(&xdr, &hdr); |
| 4117 | if (!status) |
| 4118 | status = decode_renew(&xdr); |
| 4119 | return status; |
| 4120 | } |
| 4121 | |
| 4122 | /* |
| 4123 | * a SETCLIENTID request |
| 4124 | */ |
| 4125 | static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, uint32_t *p, |
| 4126 | struct nfs4_client *clp) |
| 4127 | { |
| 4128 | struct xdr_stream xdr; |
| 4129 | struct compound_hdr hdr; |
| 4130 | int status; |
| 4131 | |
| 4132 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); |
| 4133 | status = decode_compound_hdr(&xdr, &hdr); |
| 4134 | if (!status) |
| 4135 | status = decode_setclientid(&xdr, clp); |
| 4136 | if (!status) |
| 4137 | status = -nfs_stat_to_errno(hdr.status); |
| 4138 | return status; |
| 4139 | } |
| 4140 | |
| 4141 | /* |
| 4142 | * a SETCLIENTID_CONFIRM request |
| 4143 | */ |
| 4144 | static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, uint32_t *p, struct nfs_fsinfo *fsinfo) |
| 4145 | { |
| 4146 | struct xdr_stream xdr; |
| 4147 | struct compound_hdr hdr; |
| 4148 | int status; |
| 4149 | |
| 4150 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); |
| 4151 | status = decode_compound_hdr(&xdr, &hdr); |
| 4152 | if (!status) |
| 4153 | status = decode_setclientid_confirm(&xdr); |
| 4154 | if (!status) |
| 4155 | status = decode_putrootfh(&xdr); |
| 4156 | if (!status) |
| 4157 | status = decode_fsinfo(&xdr, fsinfo); |
| 4158 | if (!status) |
| 4159 | status = -nfs_stat_to_errno(hdr.status); |
| 4160 | return status; |
| 4161 | } |
| 4162 | |
| 4163 | /* |
| 4164 | * DELEGRETURN request |
| 4165 | */ |
| 4166 | static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, uint32_t *p, void *dummy) |
| 4167 | { |
| 4168 | struct xdr_stream xdr; |
| 4169 | struct compound_hdr hdr; |
| 4170 | int status; |
| 4171 | |
| 4172 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 4173 | status = decode_compound_hdr(&xdr, &hdr); |
| 4174 | if (status == 0) { |
| 4175 | status = decode_putfh(&xdr); |
| 4176 | if (status == 0) |
| 4177 | status = decode_delegreturn(&xdr); |
| 4178 | } |
| 4179 | return status; |
| 4180 | } |
| 4181 | |
| 4182 | uint32_t *nfs4_decode_dirent(uint32_t *p, struct nfs_entry *entry, int plus) |
| 4183 | { |
| 4184 | uint32_t bitmap[2] = {0}; |
| 4185 | uint32_t len; |
| 4186 | |
| 4187 | if (!*p++) { |
| 4188 | if (!*p) |
| 4189 | return ERR_PTR(-EAGAIN); |
| 4190 | entry->eof = 1; |
| 4191 | return ERR_PTR(-EBADCOOKIE); |
| 4192 | } |
| 4193 | |
| 4194 | entry->prev_cookie = entry->cookie; |
| 4195 | p = xdr_decode_hyper(p, &entry->cookie); |
| 4196 | entry->len = ntohl(*p++); |
| 4197 | entry->name = (const char *) p; |
| 4198 | p += XDR_QUADLEN(entry->len); |
| 4199 | |
| 4200 | /* |
| 4201 | * In case the server doesn't return an inode number, |
| 4202 | * we fake one here. (We don't use inode number 0, |
| 4203 | * since glibc seems to choke on it...) |
| 4204 | */ |
| 4205 | entry->ino = 1; |
| 4206 | |
| 4207 | len = ntohl(*p++); /* bitmap length */ |
| 4208 | if (len-- > 0) { |
| 4209 | bitmap[0] = ntohl(*p++); |
| 4210 | if (len-- > 0) { |
| 4211 | bitmap[1] = ntohl(*p++); |
| 4212 | p += len; |
| 4213 | } |
| 4214 | } |
| 4215 | len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */ |
| 4216 | if (len > 0) { |
Manoj Naik | 97d312d | 2005-06-22 17:16:39 +0000 | [diff] [blame] | 4217 | if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) { |
| 4218 | bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; |
| 4219 | /* Ignore the return value of rdattr_error for now */ |
| 4220 | p++; |
| 4221 | len--; |
| 4222 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4223 | if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID) |
| 4224 | xdr_decode_hyper(p, &entry->ino); |
| 4225 | else if (bitmap[0] == FATTR4_WORD0_FILEID) |
| 4226 | xdr_decode_hyper(p, &entry->ino); |
| 4227 | p += len; |
| 4228 | } |
| 4229 | |
| 4230 | entry->eof = !p[0] && p[1]; |
| 4231 | return p; |
| 4232 | } |
| 4233 | |
| 4234 | /* |
| 4235 | * We need to translate between nfs status return values and |
| 4236 | * the local errno values which may not be the same. |
| 4237 | */ |
| 4238 | static struct { |
| 4239 | int stat; |
| 4240 | int errno; |
| 4241 | } nfs_errtbl[] = { |
| 4242 | { NFS4_OK, 0 }, |
| 4243 | { NFS4ERR_PERM, EPERM }, |
| 4244 | { NFS4ERR_NOENT, ENOENT }, |
| 4245 | { NFS4ERR_IO, errno_NFSERR_IO }, |
| 4246 | { NFS4ERR_NXIO, ENXIO }, |
| 4247 | { NFS4ERR_ACCESS, EACCES }, |
| 4248 | { NFS4ERR_EXIST, EEXIST }, |
| 4249 | { NFS4ERR_XDEV, EXDEV }, |
| 4250 | { NFS4ERR_NOTDIR, ENOTDIR }, |
| 4251 | { NFS4ERR_ISDIR, EISDIR }, |
| 4252 | { NFS4ERR_INVAL, EINVAL }, |
| 4253 | { NFS4ERR_FBIG, EFBIG }, |
| 4254 | { NFS4ERR_NOSPC, ENOSPC }, |
| 4255 | { NFS4ERR_ROFS, EROFS }, |
| 4256 | { NFS4ERR_MLINK, EMLINK }, |
| 4257 | { NFS4ERR_NAMETOOLONG, ENAMETOOLONG }, |
| 4258 | { NFS4ERR_NOTEMPTY, ENOTEMPTY }, |
| 4259 | { NFS4ERR_DQUOT, EDQUOT }, |
| 4260 | { NFS4ERR_STALE, ESTALE }, |
| 4261 | { NFS4ERR_BADHANDLE, EBADHANDLE }, |
Manoj Naik | 6ebf365 | 2005-06-22 17:16:39 +0000 | [diff] [blame] | 4262 | { NFS4ERR_BADOWNER, EINVAL }, |
| 4263 | { NFS4ERR_BADNAME, EINVAL }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4264 | { NFS4ERR_BAD_COOKIE, EBADCOOKIE }, |
| 4265 | { NFS4ERR_NOTSUPP, ENOTSUPP }, |
| 4266 | { NFS4ERR_TOOSMALL, ETOOSMALL }, |
| 4267 | { NFS4ERR_SERVERFAULT, ESERVERFAULT }, |
| 4268 | { NFS4ERR_BADTYPE, EBADTYPE }, |
| 4269 | { NFS4ERR_LOCKED, EAGAIN }, |
| 4270 | { NFS4ERR_RESOURCE, EREMOTEIO }, |
| 4271 | { NFS4ERR_SYMLINK, ELOOP }, |
| 4272 | { NFS4ERR_OP_ILLEGAL, EOPNOTSUPP }, |
| 4273 | { NFS4ERR_DEADLOCK, EDEADLK }, |
| 4274 | { NFS4ERR_WRONGSEC, EPERM }, /* FIXME: this needs |
| 4275 | * to be handled by a |
| 4276 | * middle-layer. |
| 4277 | */ |
| 4278 | { -1, EIO } |
| 4279 | }; |
| 4280 | |
| 4281 | /* |
| 4282 | * Convert an NFS error code to a local one. |
| 4283 | * This one is used jointly by NFSv2 and NFSv3. |
| 4284 | */ |
| 4285 | static int |
| 4286 | nfs_stat_to_errno(int stat) |
| 4287 | { |
| 4288 | int i; |
| 4289 | for (i = 0; nfs_errtbl[i].stat != -1; i++) { |
| 4290 | if (nfs_errtbl[i].stat == stat) |
| 4291 | return nfs_errtbl[i].errno; |
| 4292 | } |
| 4293 | if (stat <= 10000 || stat > 10100) { |
| 4294 | /* The server is looney tunes. */ |
| 4295 | return ESERVERFAULT; |
| 4296 | } |
| 4297 | /* If we cannot translate the error, the recovery routines should |
| 4298 | * handle it. |
| 4299 | * Note: remaining NFSv4 error codes have values > 10000, so should |
| 4300 | * not conflict with native Linux error codes. |
| 4301 | */ |
| 4302 | return stat; |
| 4303 | } |
| 4304 | |
| 4305 | #ifndef MAX |
| 4306 | # define MAX(a, b) (((a) > (b))? (a) : (b)) |
| 4307 | #endif |
| 4308 | |
| 4309 | #define PROC(proc, argtype, restype) \ |
| 4310 | [NFSPROC4_CLNT_##proc] = { \ |
| 4311 | .p_proc = NFSPROC4_COMPOUND, \ |
| 4312 | .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \ |
| 4313 | .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \ |
| 4314 | .p_bufsiz = MAX(NFS4_##argtype##_sz,NFS4_##restype##_sz) << 2, \ |
| 4315 | } |
| 4316 | |
| 4317 | struct rpc_procinfo nfs4_procedures[] = { |
| 4318 | PROC(READ, enc_read, dec_read), |
| 4319 | PROC(WRITE, enc_write, dec_write), |
| 4320 | PROC(COMMIT, enc_commit, dec_commit), |
| 4321 | PROC(OPEN, enc_open, dec_open), |
| 4322 | PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), |
| 4323 | PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), |
| 4324 | PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), |
| 4325 | PROC(CLOSE, enc_close, dec_close), |
| 4326 | PROC(SETATTR, enc_setattr, dec_setattr), |
| 4327 | PROC(FSINFO, enc_fsinfo, dec_fsinfo), |
| 4328 | PROC(RENEW, enc_renew, dec_renew), |
| 4329 | PROC(SETCLIENTID, enc_setclientid, dec_setclientid), |
| 4330 | PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), |
| 4331 | PROC(LOCK, enc_lock, dec_lock), |
| 4332 | PROC(LOCKT, enc_lockt, dec_lockt), |
| 4333 | PROC(LOCKU, enc_locku, dec_locku), |
| 4334 | PROC(ACCESS, enc_access, dec_access), |
| 4335 | PROC(GETATTR, enc_getattr, dec_getattr), |
| 4336 | PROC(LOOKUP, enc_lookup, dec_lookup), |
| 4337 | PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), |
| 4338 | PROC(REMOVE, enc_remove, dec_remove), |
| 4339 | PROC(RENAME, enc_rename, dec_rename), |
| 4340 | PROC(LINK, enc_link, dec_link), |
| 4341 | PROC(SYMLINK, enc_symlink, dec_symlink), |
| 4342 | PROC(CREATE, enc_create, dec_create), |
| 4343 | PROC(PATHCONF, enc_pathconf, dec_pathconf), |
| 4344 | PROC(STATFS, enc_statfs, dec_statfs), |
| 4345 | PROC(READLINK, enc_readlink, dec_readlink), |
| 4346 | PROC(READDIR, enc_readdir, dec_readdir), |
| 4347 | PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), |
| 4348 | PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), |
J. Bruce Fields | 029d105 | 2005-06-22 17:16:22 +0000 | [diff] [blame] | 4349 | PROC(GETACL, enc_getacl, dec_getacl), |
J. Bruce Fields | 23ec696 | 2005-06-22 17:16:22 +0000 | [diff] [blame] | 4350 | PROC(SETACL, enc_setacl, dec_setacl), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4351 | }; |
| 4352 | |
| 4353 | struct rpc_version nfs_version4 = { |
| 4354 | .number = 4, |
| 4355 | .nrprocs = sizeof(nfs4_procedures)/sizeof(nfs4_procedures[0]), |
| 4356 | .procs = nfs4_procedures |
| 4357 | }; |
| 4358 | |
| 4359 | /* |
| 4360 | * Local variables: |
| 4361 | * c-basic-offset: 8 |
| 4362 | * End: |
| 4363 | */ |