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 | |
David Howells | 0a8ea43 | 2006-08-22 20:06:08 -0400 | [diff] [blame] | 61 | static int nfs4_stat_to_errno(int); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | */ |
Trond Myklebust | 2cebf82 | 2007-07-02 13:57:28 -0400 | [diff] [blame] | 73 | #define open_owner_id_maxsz (1 + 1) |
| 74 | #define lock_owner_id_maxsz (1 + 1) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 75 | #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) |
| 76 | #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) |
| 77 | #define op_encode_hdr_maxsz (1) |
| 78 | #define op_decode_hdr_maxsz (2) |
| 79 | #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \ |
| 80 | (NFS4_FHSIZE >> 2)) |
| 81 | #define decode_putfh_maxsz (op_decode_hdr_maxsz) |
| 82 | #define encode_putrootfh_maxsz (op_encode_hdr_maxsz) |
| 83 | #define decode_putrootfh_maxsz (op_decode_hdr_maxsz) |
| 84 | #define encode_getfh_maxsz (op_encode_hdr_maxsz) |
| 85 | #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \ |
| 86 | ((3+NFS4_FHSIZE) >> 2)) |
J. Bruce Fields | 9692820 | 2005-06-22 17:16:22 +0000 | [diff] [blame] | 87 | #define nfs4_fattr_bitmap_maxsz 3 |
| 88 | #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 89 | #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2)) |
| 90 | #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2)) |
Trond Myklebust | bd625ba | 2007-07-08 18:38:23 -0400 | [diff] [blame] | 91 | #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) |
| 92 | #define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) |
J. Bruce Fields | 9692820 | 2005-06-22 17:16:22 +0000 | [diff] [blame] | 93 | /* This is based on getfattr, which uses the most attributes: */ |
| 94 | #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \ |
Trond Myklebust | bd625ba | 2007-07-08 18:38:23 -0400 | [diff] [blame] | 95 | 3 + 3 + 3 + nfs4_owner_maxsz + nfs4_group_maxsz)) |
J. Bruce Fields | 9692820 | 2005-06-22 17:16:22 +0000 | [diff] [blame] | 96 | #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \ |
| 97 | nfs4_fattr_value_maxsz) |
| 98 | #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 99 | #define encode_savefh_maxsz (op_encode_hdr_maxsz) |
| 100 | #define decode_savefh_maxsz (op_decode_hdr_maxsz) |
Trond Myklebust | 56ae19f | 2005-10-27 22:12:40 -0400 | [diff] [blame] | 101 | #define encode_restorefh_maxsz (op_encode_hdr_maxsz) |
| 102 | #define decode_restorefh_maxsz (op_decode_hdr_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 103 | #define encode_fsinfo_maxsz (op_encode_hdr_maxsz + 2) |
| 104 | #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + 11) |
| 105 | #define encode_renew_maxsz (op_encode_hdr_maxsz + 3) |
| 106 | #define decode_renew_maxsz (op_decode_hdr_maxsz) |
| 107 | #define encode_setclientid_maxsz \ |
| 108 | (op_encode_hdr_maxsz + \ |
| 109 | 4 /*server->ip_addr*/ + \ |
| 110 | 1 /*Netid*/ + \ |
| 111 | 6 /*uaddr*/ + \ |
| 112 | 6 + (NFS4_VERIFIER_SIZE >> 2)) |
| 113 | #define decode_setclientid_maxsz \ |
| 114 | (op_decode_hdr_maxsz + \ |
| 115 | 2 + \ |
| 116 | 1024) /* large value for CLID_INUSE */ |
| 117 | #define encode_setclientid_confirm_maxsz \ |
| 118 | (op_encode_hdr_maxsz + \ |
| 119 | 3 + (NFS4_VERIFIER_SIZE >> 2)) |
| 120 | #define decode_setclientid_confirm_maxsz \ |
| 121 | (op_decode_hdr_maxsz) |
Trond Myklebust | e688962 | 2007-07-02 13:58:30 -0400 | [diff] [blame^] | 122 | #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) |
| 123 | #define decode_lookup_maxsz (op_decode_hdr_maxsz) |
Trond Myklebust | 2cebf82 | 2007-07-02 13:57:28 -0400 | [diff] [blame] | 124 | #define encode_share_access_maxsz \ |
| 125 | (2) |
| 126 | #define encode_createmode_maxsz (1 + nfs4_fattr_maxsz) |
| 127 | #define encode_opentype_maxsz (1 + encode_createmode_maxsz) |
| 128 | #define encode_claim_null_maxsz (1 + nfs4_name_maxsz) |
| 129 | #define encode_open_maxsz (op_encode_hdr_maxsz + \ |
| 130 | 2 + encode_share_access_maxsz + 2 + \ |
| 131 | open_owner_id_maxsz + \ |
| 132 | encode_opentype_maxsz + \ |
| 133 | encode_claim_null_maxsz) |
| 134 | #define decode_ace_maxsz (3 + nfs4_owner_maxsz) |
| 135 | #define decode_delegation_maxsz (1 + XDR_QUADLEN(NFS4_STATEID_SIZE) + 1 + \ |
| 136 | decode_ace_maxsz) |
| 137 | #define decode_change_info_maxsz (5) |
| 138 | #define decode_open_maxsz (op_decode_hdr_maxsz + \ |
| 139 | XDR_QUADLEN(NFS4_STATEID_SIZE) + \ |
| 140 | decode_change_info_maxsz + 1 + \ |
| 141 | nfs4_fattr_bitmap_maxsz + \ |
| 142 | decode_delegation_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 143 | #define encode_remove_maxsz (op_encode_hdr_maxsz + \ |
| 144 | nfs4_name_maxsz) |
| 145 | #define encode_rename_maxsz (op_encode_hdr_maxsz + \ |
| 146 | 2 * nfs4_name_maxsz) |
| 147 | #define decode_rename_maxsz (op_decode_hdr_maxsz + 5 + 5) |
| 148 | #define encode_link_maxsz (op_encode_hdr_maxsz + \ |
| 149 | nfs4_name_maxsz) |
| 150 | #define decode_link_maxsz (op_decode_hdr_maxsz + 5) |
| 151 | #define encode_symlink_maxsz (op_encode_hdr_maxsz + \ |
| 152 | 1 + nfs4_name_maxsz + \ |
Chuck Lever | 94a6d75 | 2006-08-22 20:06:23 -0400 | [diff] [blame] | 153 | 1 + \ |
J. Bruce Fields | 9692820 | 2005-06-22 17:16:22 +0000 | [diff] [blame] | 154 | nfs4_fattr_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 155 | #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8) |
| 156 | #define encode_create_maxsz (op_encode_hdr_maxsz + \ |
| 157 | 2 + nfs4_name_maxsz + \ |
J. Bruce Fields | 9692820 | 2005-06-22 17:16:22 +0000 | [diff] [blame] | 158 | nfs4_fattr_maxsz) |
Trond Myklebust | 2cebf82 | 2007-07-02 13:57:28 -0400 | [diff] [blame] | 159 | #define decode_create_maxsz (op_decode_hdr_maxsz + \ |
| 160 | decode_change_info_maxsz + \ |
| 161 | nfs4_fattr_bitmap_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 162 | #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4) |
| 163 | #define decode_delegreturn_maxsz (op_decode_hdr_maxsz) |
Trond Myklebust | e688962 | 2007-07-02 13:58:30 -0400 | [diff] [blame^] | 164 | #define encode_fs_locations_maxsz \ |
| 165 | (encode_getattr_maxsz) |
| 166 | #define decode_fs_locations_maxsz \ |
| 167 | (0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 168 | #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ |
| 169 | #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ |
| 170 | #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ |
| 171 | encode_putfh_maxsz + \ |
| 172 | op_encode_hdr_maxsz + 7) |
| 173 | #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ |
| 174 | decode_putfh_maxsz + \ |
| 175 | op_decode_hdr_maxsz + 2) |
| 176 | #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ |
| 177 | encode_putfh_maxsz + \ |
| 178 | op_encode_hdr_maxsz) |
| 179 | #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ |
| 180 | decode_putfh_maxsz + \ |
| 181 | op_decode_hdr_maxsz) |
| 182 | #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ |
| 183 | encode_putfh_maxsz + \ |
| 184 | op_encode_hdr_maxsz + 9) |
| 185 | #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ |
| 186 | decode_putfh_maxsz + \ |
| 187 | op_decode_hdr_maxsz + 2) |
| 188 | #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ |
| 189 | encode_putfh_maxsz + \ |
Trond Myklebust | 4f9838c | 2005-10-27 22:12:44 -0400 | [diff] [blame] | 190 | op_encode_hdr_maxsz + 8 + \ |
| 191 | encode_getattr_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 192 | #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ |
| 193 | decode_putfh_maxsz + \ |
Trond Myklebust | 4f9838c | 2005-10-27 22:12:44 -0400 | [diff] [blame] | 194 | op_decode_hdr_maxsz + 4 + \ |
| 195 | decode_getattr_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 196 | #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ |
| 197 | encode_putfh_maxsz + \ |
Trond Myklebust | 4f9838c | 2005-10-27 22:12:44 -0400 | [diff] [blame] | 198 | op_encode_hdr_maxsz + 3 + \ |
| 199 | encode_getattr_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 200 | #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ |
| 201 | decode_putfh_maxsz + \ |
Trond Myklebust | 4f9838c | 2005-10-27 22:12:44 -0400 | [diff] [blame] | 202 | op_decode_hdr_maxsz + 2 + \ |
| 203 | decode_getattr_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 204 | #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ |
Trond Myklebust | 2cebf82 | 2007-07-02 13:57:28 -0400 | [diff] [blame] | 205 | encode_putfh_maxsz + \ |
| 206 | encode_savefh_maxsz + \ |
| 207 | encode_open_maxsz + \ |
| 208 | encode_getfh_maxsz + \ |
| 209 | encode_getattr_maxsz + \ |
| 210 | encode_restorefh_maxsz + \ |
| 211 | encode_getattr_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 212 | #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ |
Trond Myklebust | 2cebf82 | 2007-07-02 13:57:28 -0400 | [diff] [blame] | 213 | decode_putfh_maxsz + \ |
| 214 | decode_savefh_maxsz + \ |
| 215 | decode_open_maxsz + \ |
| 216 | decode_getfh_maxsz + \ |
| 217 | decode_getattr_maxsz + \ |
| 218 | decode_restorefh_maxsz + \ |
| 219 | decode_getattr_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 220 | #define NFS4_enc_open_confirm_sz \ |
| 221 | (compound_encode_hdr_maxsz + \ |
| 222 | encode_putfh_maxsz + \ |
| 223 | op_encode_hdr_maxsz + 5) |
| 224 | #define NFS4_dec_open_confirm_sz (compound_decode_hdr_maxsz + \ |
| 225 | decode_putfh_maxsz + \ |
| 226 | op_decode_hdr_maxsz + 4) |
| 227 | #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ |
| 228 | encode_putfh_maxsz + \ |
Trond Myklebust | 2cebf82 | 2007-07-02 13:57:28 -0400 | [diff] [blame] | 229 | encode_open_maxsz + \ |
| 230 | encode_getattr_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 231 | #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ |
| 232 | decode_putfh_maxsz + \ |
Trond Myklebust | 2cebf82 | 2007-07-02 13:57:28 -0400 | [diff] [blame] | 233 | decode_open_maxsz + \ |
| 234 | decode_getattr_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 235 | #define NFS4_enc_open_downgrade_sz \ |
| 236 | (compound_encode_hdr_maxsz + \ |
| 237 | encode_putfh_maxsz + \ |
Trond Myklebust | 516a6af | 2005-10-27 22:12:41 -0400 | [diff] [blame] | 238 | op_encode_hdr_maxsz + 7 + \ |
| 239 | encode_getattr_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 240 | #define NFS4_dec_open_downgrade_sz \ |
| 241 | (compound_decode_hdr_maxsz + \ |
| 242 | decode_putfh_maxsz + \ |
Trond Myklebust | 516a6af | 2005-10-27 22:12:41 -0400 | [diff] [blame] | 243 | op_decode_hdr_maxsz + 4 + \ |
| 244 | decode_getattr_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 245 | #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ |
| 246 | encode_putfh_maxsz + \ |
Trond Myklebust | 516a6af | 2005-10-27 22:12:41 -0400 | [diff] [blame] | 247 | op_encode_hdr_maxsz + 5 + \ |
| 248 | encode_getattr_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 249 | #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ |
| 250 | decode_putfh_maxsz + \ |
Trond Myklebust | 516a6af | 2005-10-27 22:12:41 -0400 | [diff] [blame] | 251 | op_decode_hdr_maxsz + 4 + \ |
| 252 | decode_getattr_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 253 | #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ |
| 254 | encode_putfh_maxsz + \ |
| 255 | op_encode_hdr_maxsz + 4 + \ |
J. Bruce Fields | 9692820 | 2005-06-22 17:16:22 +0000 | [diff] [blame] | 256 | nfs4_fattr_maxsz + \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 257 | encode_getattr_maxsz) |
| 258 | #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ |
| 259 | decode_putfh_maxsz + \ |
Chuck Lever | 6ce7dc9 | 2007-05-08 18:23:28 -0400 | [diff] [blame] | 260 | op_decode_hdr_maxsz + 3 + \ |
| 261 | nfs4_fattr_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 262 | #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ |
| 263 | encode_putfh_maxsz + \ |
| 264 | encode_fsinfo_maxsz) |
| 265 | #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ |
| 266 | decode_putfh_maxsz + \ |
| 267 | decode_fsinfo_maxsz) |
| 268 | #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ |
| 269 | encode_renew_maxsz) |
| 270 | #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ |
| 271 | decode_renew_maxsz) |
| 272 | #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ |
| 273 | encode_setclientid_maxsz) |
| 274 | #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ |
| 275 | decode_setclientid_maxsz) |
| 276 | #define NFS4_enc_setclientid_confirm_sz \ |
| 277 | (compound_encode_hdr_maxsz + \ |
| 278 | encode_setclientid_confirm_maxsz + \ |
| 279 | encode_putrootfh_maxsz + \ |
| 280 | encode_fsinfo_maxsz) |
| 281 | #define NFS4_dec_setclientid_confirm_sz \ |
| 282 | (compound_decode_hdr_maxsz + \ |
| 283 | decode_setclientid_confirm_maxsz + \ |
| 284 | decode_putrootfh_maxsz + \ |
| 285 | decode_fsinfo_maxsz) |
| 286 | #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ |
| 287 | encode_putfh_maxsz + \ |
| 288 | encode_getattr_maxsz + \ |
| 289 | op_encode_hdr_maxsz + \ |
| 290 | 1 + 1 + 2 + 2 + \ |
| 291 | 1 + 4 + 1 + 2 + \ |
Trond Myklebust | 2cebf82 | 2007-07-02 13:57:28 -0400 | [diff] [blame] | 292 | lock_owner_id_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 293 | #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ |
| 294 | decode_putfh_maxsz + \ |
| 295 | decode_getattr_maxsz + \ |
| 296 | op_decode_hdr_maxsz + \ |
| 297 | 2 + 2 + 1 + 2 + \ |
Trond Myklebust | 2cebf82 | 2007-07-02 13:57:28 -0400 | [diff] [blame] | 298 | lock_owner_id_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 299 | #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ |
| 300 | encode_putfh_maxsz + \ |
| 301 | encode_getattr_maxsz + \ |
| 302 | op_encode_hdr_maxsz + \ |
| 303 | 1 + 2 + 2 + 2 + \ |
Trond Myklebust | 2cebf82 | 2007-07-02 13:57:28 -0400 | [diff] [blame] | 304 | lock_owner_id_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 305 | #define NFS4_dec_lockt_sz (NFS4_dec_lock_sz) |
| 306 | #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ |
| 307 | encode_putfh_maxsz + \ |
| 308 | encode_getattr_maxsz + \ |
| 309 | op_encode_hdr_maxsz + \ |
| 310 | 1 + 1 + 4 + 2 + 2) |
| 311 | #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ |
| 312 | decode_putfh_maxsz + \ |
| 313 | decode_getattr_maxsz + \ |
| 314 | op_decode_hdr_maxsz + 4) |
| 315 | #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ |
| 316 | encode_putfh_maxsz + \ |
| 317 | op_encode_hdr_maxsz + 1) |
| 318 | #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ |
| 319 | decode_putfh_maxsz + \ |
| 320 | op_decode_hdr_maxsz + 2) |
| 321 | #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ |
| 322 | encode_putfh_maxsz + \ |
| 323 | encode_getattr_maxsz) |
| 324 | #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ |
| 325 | decode_putfh_maxsz + \ |
| 326 | decode_getattr_maxsz) |
| 327 | #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ |
| 328 | encode_putfh_maxsz + \ |
| 329 | encode_lookup_maxsz + \ |
| 330 | encode_getattr_maxsz + \ |
| 331 | encode_getfh_maxsz) |
| 332 | #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ |
| 333 | decode_putfh_maxsz + \ |
Trond Myklebust | e688962 | 2007-07-02 13:58:30 -0400 | [diff] [blame^] | 334 | decode_lookup_maxsz + \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 335 | decode_getattr_maxsz + \ |
| 336 | decode_getfh_maxsz) |
| 337 | #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ |
| 338 | encode_putrootfh_maxsz + \ |
| 339 | encode_getattr_maxsz + \ |
| 340 | encode_getfh_maxsz) |
| 341 | #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ |
| 342 | decode_putrootfh_maxsz + \ |
| 343 | decode_getattr_maxsz + \ |
| 344 | decode_getfh_maxsz) |
| 345 | #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ |
| 346 | encode_putfh_maxsz + \ |
Trond Myklebust | 16e4295 | 2005-10-27 22:12:44 -0400 | [diff] [blame] | 347 | encode_remove_maxsz + \ |
| 348 | encode_getattr_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 349 | #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ |
| 350 | decode_putfh_maxsz + \ |
Trond Myklebust | 16e4295 | 2005-10-27 22:12:44 -0400 | [diff] [blame] | 351 | op_decode_hdr_maxsz + 5 + \ |
| 352 | decode_getattr_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 353 | #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ |
| 354 | encode_putfh_maxsz + \ |
| 355 | encode_savefh_maxsz + \ |
| 356 | encode_putfh_maxsz + \ |
Trond Myklebust | 6caf2c8 | 2005-10-27 22:12:43 -0400 | [diff] [blame] | 357 | encode_rename_maxsz + \ |
| 358 | encode_getattr_maxsz + \ |
| 359 | encode_restorefh_maxsz + \ |
| 360 | encode_getattr_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 361 | #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ |
| 362 | decode_putfh_maxsz + \ |
| 363 | decode_savefh_maxsz + \ |
| 364 | decode_putfh_maxsz + \ |
Trond Myklebust | 6caf2c8 | 2005-10-27 22:12:43 -0400 | [diff] [blame] | 365 | decode_rename_maxsz + \ |
| 366 | decode_getattr_maxsz + \ |
| 367 | decode_restorefh_maxsz + \ |
| 368 | decode_getattr_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 369 | #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ |
| 370 | encode_putfh_maxsz + \ |
| 371 | encode_savefh_maxsz + \ |
| 372 | encode_putfh_maxsz + \ |
Trond Myklebust | 91ba2ee | 2005-10-27 22:12:42 -0400 | [diff] [blame] | 373 | encode_link_maxsz + \ |
| 374 | decode_getattr_maxsz + \ |
| 375 | encode_restorefh_maxsz + \ |
| 376 | decode_getattr_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 377 | #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ |
| 378 | decode_putfh_maxsz + \ |
| 379 | decode_savefh_maxsz + \ |
| 380 | decode_putfh_maxsz + \ |
Trond Myklebust | 91ba2ee | 2005-10-27 22:12:42 -0400 | [diff] [blame] | 381 | decode_link_maxsz + \ |
| 382 | decode_getattr_maxsz + \ |
| 383 | decode_restorefh_maxsz + \ |
| 384 | decode_getattr_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 385 | #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ |
| 386 | encode_putfh_maxsz + \ |
| 387 | encode_symlink_maxsz + \ |
| 388 | encode_getattr_maxsz + \ |
| 389 | encode_getfh_maxsz) |
| 390 | #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ |
| 391 | decode_putfh_maxsz + \ |
| 392 | decode_symlink_maxsz + \ |
| 393 | decode_getattr_maxsz + \ |
| 394 | decode_getfh_maxsz) |
| 395 | #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ |
| 396 | encode_putfh_maxsz + \ |
Trond Myklebust | 56ae19f | 2005-10-27 22:12:40 -0400 | [diff] [blame] | 397 | encode_savefh_maxsz + \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 398 | encode_create_maxsz + \ |
Trond Myklebust | 56ae19f | 2005-10-27 22:12:40 -0400 | [diff] [blame] | 399 | encode_getfh_maxsz + \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 400 | encode_getattr_maxsz + \ |
Trond Myklebust | 56ae19f | 2005-10-27 22:12:40 -0400 | [diff] [blame] | 401 | encode_restorefh_maxsz + \ |
| 402 | encode_getattr_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 403 | #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ |
| 404 | decode_putfh_maxsz + \ |
Trond Myklebust | 56ae19f | 2005-10-27 22:12:40 -0400 | [diff] [blame] | 405 | decode_savefh_maxsz + \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 406 | decode_create_maxsz + \ |
Trond Myklebust | 56ae19f | 2005-10-27 22:12:40 -0400 | [diff] [blame] | 407 | decode_getfh_maxsz + \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 408 | decode_getattr_maxsz + \ |
Trond Myklebust | 56ae19f | 2005-10-27 22:12:40 -0400 | [diff] [blame] | 409 | decode_restorefh_maxsz + \ |
| 410 | decode_getattr_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 411 | #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ |
| 412 | encode_putfh_maxsz + \ |
| 413 | encode_getattr_maxsz) |
| 414 | #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ |
| 415 | decode_putfh_maxsz + \ |
| 416 | decode_getattr_maxsz) |
| 417 | #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ |
| 418 | encode_putfh_maxsz + \ |
| 419 | encode_getattr_maxsz) |
| 420 | #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ |
| 421 | decode_putfh_maxsz + \ |
| 422 | op_decode_hdr_maxsz + 12) |
| 423 | #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ |
Trond Myklebust | ab91f26 | 2007-02-02 14:47:17 -0800 | [diff] [blame] | 424 | encode_putfh_maxsz + \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 425 | encode_getattr_maxsz) |
| 426 | #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ |
Trond Myklebust | ab91f26 | 2007-02-02 14:47:17 -0800 | [diff] [blame] | 427 | decode_putfh_maxsz + \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 428 | decode_getattr_maxsz) |
| 429 | #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ |
| 430 | encode_putfh_maxsz + \ |
Trond Myklebust | fa178f2 | 2006-01-03 09:55:38 +0100 | [diff] [blame] | 431 | encode_delegreturn_maxsz + \ |
| 432 | encode_getattr_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 433 | #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ |
Trond Myklebust | fa178f2 | 2006-01-03 09:55:38 +0100 | [diff] [blame] | 434 | decode_delegreturn_maxsz + \ |
| 435 | decode_getattr_maxsz) |
J. Bruce Fields | 029d105 | 2005-06-22 17:16:22 +0000 | [diff] [blame] | 436 | #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ |
| 437 | encode_putfh_maxsz + \ |
| 438 | encode_getattr_maxsz) |
| 439 | #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ |
| 440 | decode_putfh_maxsz + \ |
| 441 | op_decode_hdr_maxsz + \ |
| 442 | nfs4_fattr_bitmap_maxsz + 1) |
J. Bruce Fields | 23ec696 | 2005-06-22 17:16:22 +0000 | [diff] [blame] | 443 | #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ |
| 444 | encode_putfh_maxsz + \ |
| 445 | op_encode_hdr_maxsz + 4 + \ |
| 446 | nfs4_fattr_bitmap_maxsz + 1) |
| 447 | #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ |
| 448 | decode_putfh_maxsz + \ |
| 449 | op_decode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) |
Trond Myklebust | 683b57b | 2006-06-09 09:34:22 -0400 | [diff] [blame] | 450 | #define NFS4_enc_fs_locations_sz \ |
| 451 | (compound_encode_hdr_maxsz + \ |
| 452 | encode_putfh_maxsz + \ |
Trond Myklebust | e688962 | 2007-07-02 13:58:30 -0400 | [diff] [blame^] | 453 | encode_lookup_maxsz + \ |
| 454 | encode_fs_locations_maxsz) |
Trond Myklebust | 683b57b | 2006-06-09 09:34:22 -0400 | [diff] [blame] | 455 | #define NFS4_dec_fs_locations_sz \ |
| 456 | (compound_decode_hdr_maxsz + \ |
| 457 | decode_putfh_maxsz + \ |
Trond Myklebust | e688962 | 2007-07-02 13:58:30 -0400 | [diff] [blame^] | 458 | decode_lookup_maxsz + \ |
| 459 | decode_fs_locations_maxsz) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 460 | |
| 461 | static struct { |
| 462 | unsigned int mode; |
| 463 | unsigned int nfs2type; |
| 464 | } nfs_type2fmt[] = { |
| 465 | { 0, NFNON }, |
| 466 | { S_IFREG, NFREG }, |
| 467 | { S_IFDIR, NFDIR }, |
| 468 | { S_IFBLK, NFBLK }, |
| 469 | { S_IFCHR, NFCHR }, |
| 470 | { S_IFLNK, NFLNK }, |
| 471 | { S_IFSOCK, NFSOCK }, |
| 472 | { S_IFIFO, NFFIFO }, |
| 473 | { 0, NFNON }, |
| 474 | { 0, NFNON }, |
| 475 | }; |
| 476 | |
| 477 | struct compound_hdr { |
| 478 | int32_t status; |
| 479 | uint32_t nops; |
| 480 | uint32_t taglen; |
| 481 | char * tag; |
| 482 | }; |
| 483 | |
| 484 | /* |
| 485 | * START OF "GENERIC" ENCODE ROUTINES. |
| 486 | * These may look a little ugly since they are imported from a "generic" |
| 487 | * set of XDR encode/decode routines which are intended to be shared by |
| 488 | * all of our NFSv4 implementations (OpenBSD, MacOS X...). |
| 489 | * |
| 490 | * If the pain of reading these is too great, it should be a straightforward |
| 491 | * task to translate them into Linux-specific versions which are more |
| 492 | * consistent with the style used in NFSv2/v3... |
| 493 | */ |
| 494 | #define WRITE32(n) *p++ = htonl(n) |
| 495 | #define WRITE64(n) do { \ |
| 496 | *p++ = htonl((uint32_t)((n) >> 32)); \ |
| 497 | *p++ = htonl((uint32_t)(n)); \ |
| 498 | } while (0) |
| 499 | #define WRITEMEM(ptr,nbytes) do { \ |
| 500 | p = xdr_encode_opaque_fixed(p, ptr, nbytes); \ |
| 501 | } while (0) |
| 502 | |
| 503 | #define RESERVE_SPACE(nbytes) do { \ |
| 504 | p = xdr_reserve_space(xdr, nbytes); \ |
| 505 | if (!p) printk("RESERVE_SPACE(%d) failed in function %s\n", (int) (nbytes), __FUNCTION__); \ |
| 506 | BUG_ON(!p); \ |
| 507 | } while (0) |
| 508 | |
| 509 | static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) |
| 510 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 511 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 512 | |
| 513 | p = xdr_reserve_space(xdr, 4 + len); |
| 514 | BUG_ON(p == NULL); |
| 515 | xdr_encode_opaque(p, str, len); |
| 516 | } |
| 517 | |
| 518 | static int encode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) |
| 519 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 520 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 521 | |
| 522 | dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag); |
| 523 | BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); |
| 524 | RESERVE_SPACE(12+(XDR_QUADLEN(hdr->taglen)<<2)); |
| 525 | WRITE32(hdr->taglen); |
| 526 | WRITEMEM(hdr->tag, hdr->taglen); |
| 527 | WRITE32(NFS4_MINOR_VERSION); |
| 528 | WRITE32(hdr->nops); |
| 529 | return 0; |
| 530 | } |
| 531 | |
| 532 | static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) |
| 533 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 534 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 535 | |
| 536 | p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE); |
| 537 | BUG_ON(p == NULL); |
| 538 | xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE); |
| 539 | } |
| 540 | |
| 541 | static int encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) |
| 542 | { |
| 543 | char owner_name[IDMAP_NAMESZ]; |
| 544 | char owner_group[IDMAP_NAMESZ]; |
| 545 | int owner_namelen = 0; |
| 546 | int owner_grouplen = 0; |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 547 | __be32 *p; |
| 548 | __be32 *q; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 549 | int len; |
| 550 | uint32_t bmval0 = 0; |
| 551 | uint32_t bmval1 = 0; |
| 552 | int status; |
| 553 | |
| 554 | /* |
| 555 | * We reserve enough space to write the entire attribute buffer at once. |
| 556 | * In the worst-case, this would be |
| 557 | * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) |
| 558 | * = 36 bytes, plus any contribution from variable-length fields |
J. Bruce Fields | 23ec696 | 2005-06-22 17:16:22 +0000 | [diff] [blame] | 559 | * such as owner/group. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 560 | */ |
| 561 | len = 16; |
| 562 | |
| 563 | /* Sigh */ |
| 564 | if (iap->ia_valid & ATTR_SIZE) |
| 565 | len += 8; |
| 566 | if (iap->ia_valid & ATTR_MODE) |
| 567 | len += 4; |
| 568 | if (iap->ia_valid & ATTR_UID) { |
David Howells | 7539bba | 2006-08-22 20:06:09 -0400 | [diff] [blame] | 569 | owner_namelen = nfs_map_uid_to_name(server->nfs_client, iap->ia_uid, owner_name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 570 | if (owner_namelen < 0) { |
| 571 | printk(KERN_WARNING "nfs: couldn't resolve uid %d to string\n", |
| 572 | iap->ia_uid); |
| 573 | /* XXX */ |
| 574 | strcpy(owner_name, "nobody"); |
| 575 | owner_namelen = sizeof("nobody") - 1; |
| 576 | /* goto out; */ |
| 577 | } |
| 578 | len += 4 + (XDR_QUADLEN(owner_namelen) << 2); |
| 579 | } |
| 580 | if (iap->ia_valid & ATTR_GID) { |
David Howells | 7539bba | 2006-08-22 20:06:09 -0400 | [diff] [blame] | 581 | owner_grouplen = nfs_map_gid_to_group(server->nfs_client, iap->ia_gid, owner_group); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 582 | if (owner_grouplen < 0) { |
| 583 | printk(KERN_WARNING "nfs4: couldn't resolve gid %d to string\n", |
| 584 | iap->ia_gid); |
| 585 | strcpy(owner_group, "nobody"); |
| 586 | owner_grouplen = sizeof("nobody") - 1; |
| 587 | /* goto out; */ |
| 588 | } |
| 589 | len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); |
| 590 | } |
| 591 | if (iap->ia_valid & ATTR_ATIME_SET) |
| 592 | len += 16; |
| 593 | else if (iap->ia_valid & ATTR_ATIME) |
| 594 | len += 4; |
| 595 | if (iap->ia_valid & ATTR_MTIME_SET) |
| 596 | len += 16; |
| 597 | else if (iap->ia_valid & ATTR_MTIME) |
| 598 | len += 4; |
| 599 | RESERVE_SPACE(len); |
| 600 | |
| 601 | /* |
| 602 | * We write the bitmap length now, but leave the bitmap and the attribute |
| 603 | * buffer length to be backfilled at the end of this routine. |
| 604 | */ |
| 605 | WRITE32(2); |
| 606 | q = p; |
| 607 | p += 3; |
| 608 | |
| 609 | if (iap->ia_valid & ATTR_SIZE) { |
| 610 | bmval0 |= FATTR4_WORD0_SIZE; |
| 611 | WRITE64(iap->ia_size); |
| 612 | } |
| 613 | if (iap->ia_valid & ATTR_MODE) { |
| 614 | bmval1 |= FATTR4_WORD1_MODE; |
Trond Myklebust | cf3fff5 | 2006-01-03 09:55:53 +0100 | [diff] [blame] | 615 | WRITE32(iap->ia_mode & S_IALLUGO); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 616 | } |
| 617 | if (iap->ia_valid & ATTR_UID) { |
| 618 | bmval1 |= FATTR4_WORD1_OWNER; |
| 619 | WRITE32(owner_namelen); |
| 620 | WRITEMEM(owner_name, owner_namelen); |
| 621 | } |
| 622 | if (iap->ia_valid & ATTR_GID) { |
| 623 | bmval1 |= FATTR4_WORD1_OWNER_GROUP; |
| 624 | WRITE32(owner_grouplen); |
| 625 | WRITEMEM(owner_group, owner_grouplen); |
| 626 | } |
| 627 | if (iap->ia_valid & ATTR_ATIME_SET) { |
| 628 | bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; |
| 629 | WRITE32(NFS4_SET_TO_CLIENT_TIME); |
| 630 | WRITE32(0); |
| 631 | WRITE32(iap->ia_mtime.tv_sec); |
| 632 | WRITE32(iap->ia_mtime.tv_nsec); |
| 633 | } |
| 634 | else if (iap->ia_valid & ATTR_ATIME) { |
| 635 | bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; |
| 636 | WRITE32(NFS4_SET_TO_SERVER_TIME); |
| 637 | } |
| 638 | if (iap->ia_valid & ATTR_MTIME_SET) { |
| 639 | bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; |
| 640 | WRITE32(NFS4_SET_TO_CLIENT_TIME); |
| 641 | WRITE32(0); |
| 642 | WRITE32(iap->ia_mtime.tv_sec); |
| 643 | WRITE32(iap->ia_mtime.tv_nsec); |
| 644 | } |
| 645 | else if (iap->ia_valid & ATTR_MTIME) { |
| 646 | bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; |
| 647 | WRITE32(NFS4_SET_TO_SERVER_TIME); |
| 648 | } |
| 649 | |
| 650 | /* |
| 651 | * Now we backfill the bitmap and the attribute buffer length. |
| 652 | */ |
| 653 | if (len != ((char *)p - (char *)q) + 4) { |
| 654 | printk ("encode_attr: Attr length calculation error! %u != %Zu\n", |
| 655 | len, ((char *)p - (char *)q) + 4); |
| 656 | BUG(); |
| 657 | } |
| 658 | len = (char *)p - (char *)q - 12; |
| 659 | *q++ = htonl(bmval0); |
| 660 | *q++ = htonl(bmval1); |
| 661 | *q++ = htonl(len); |
| 662 | |
| 663 | status = 0; |
| 664 | /* out: */ |
| 665 | return status; |
| 666 | } |
| 667 | |
| 668 | static int encode_access(struct xdr_stream *xdr, u32 access) |
| 669 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 670 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 671 | |
| 672 | RESERVE_SPACE(8); |
| 673 | WRITE32(OP_ACCESS); |
| 674 | WRITE32(access); |
| 675 | |
| 676 | return 0; |
| 677 | } |
| 678 | |
| 679 | static int encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg) |
| 680 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 681 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 682 | |
Trond Myklebust | 8ae20ab | 2007-05-14 16:50:45 -0400 | [diff] [blame] | 683 | RESERVE_SPACE(8+NFS4_STATEID_SIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 684 | WRITE32(OP_CLOSE); |
Trond Myklebust | cee54fc | 2005-10-18 14:20:12 -0700 | [diff] [blame] | 685 | WRITE32(arg->seqid->sequence->counter); |
Trond Myklebust | 8ae20ab | 2007-05-14 16:50:45 -0400 | [diff] [blame] | 686 | WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 687 | |
| 688 | return 0; |
| 689 | } |
| 690 | |
| 691 | static int encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args) |
| 692 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 693 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 694 | |
| 695 | RESERVE_SPACE(16); |
| 696 | WRITE32(OP_COMMIT); |
| 697 | WRITE64(args->offset); |
| 698 | WRITE32(args->count); |
| 699 | |
| 700 | return 0; |
| 701 | } |
| 702 | |
| 703 | static int encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create) |
| 704 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 705 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 706 | |
| 707 | RESERVE_SPACE(8); |
| 708 | WRITE32(OP_CREATE); |
| 709 | WRITE32(create->ftype); |
| 710 | |
| 711 | switch (create->ftype) { |
| 712 | case NF4LNK: |
Chuck Lever | 94a6d75 | 2006-08-22 20:06:23 -0400 | [diff] [blame] | 713 | RESERVE_SPACE(4); |
| 714 | WRITE32(create->u.symlink.len); |
| 715 | xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 716 | break; |
| 717 | |
| 718 | case NF4BLK: case NF4CHR: |
| 719 | RESERVE_SPACE(8); |
| 720 | WRITE32(create->u.device.specdata1); |
| 721 | WRITE32(create->u.device.specdata2); |
| 722 | break; |
| 723 | |
| 724 | default: |
| 725 | break; |
| 726 | } |
| 727 | |
| 728 | RESERVE_SPACE(4 + create->name->len); |
| 729 | WRITE32(create->name->len); |
| 730 | WRITEMEM(create->name->name, create->name->len); |
| 731 | |
| 732 | return encode_attrs(xdr, create->attrs, create->server); |
| 733 | } |
| 734 | |
| 735 | static int encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap) |
| 736 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 737 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 738 | |
| 739 | RESERVE_SPACE(12); |
| 740 | WRITE32(OP_GETATTR); |
| 741 | WRITE32(1); |
| 742 | WRITE32(bitmap); |
| 743 | return 0; |
| 744 | } |
| 745 | |
| 746 | static int encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1) |
| 747 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 748 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 749 | |
| 750 | RESERVE_SPACE(16); |
| 751 | WRITE32(OP_GETATTR); |
| 752 | WRITE32(2); |
| 753 | WRITE32(bm0); |
| 754 | WRITE32(bm1); |
| 755 | return 0; |
| 756 | } |
| 757 | |
| 758 | static int encode_getfattr(struct xdr_stream *xdr, const u32* bitmask) |
| 759 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 760 | return encode_getattr_two(xdr, |
| 761 | bitmask[0] & nfs4_fattr_bitmap[0], |
| 762 | bitmask[1] & nfs4_fattr_bitmap[1]); |
| 763 | } |
| 764 | |
| 765 | static int encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask) |
| 766 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 767 | return encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0], |
| 768 | bitmask[1] & nfs4_fsinfo_bitmap[1]); |
| 769 | } |
| 770 | |
Manoj Naik | 830b8e3 | 2006-06-09 09:34:25 -0400 | [diff] [blame] | 771 | static int encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask) |
| 772 | { |
| 773 | return encode_getattr_two(xdr, |
| 774 | bitmask[0] & nfs4_fs_locations_bitmap[0], |
| 775 | bitmask[1] & nfs4_fs_locations_bitmap[1]); |
| 776 | } |
| 777 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 778 | static int encode_getfh(struct xdr_stream *xdr) |
| 779 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 780 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 781 | |
| 782 | RESERVE_SPACE(4); |
| 783 | WRITE32(OP_GETFH); |
| 784 | |
| 785 | return 0; |
| 786 | } |
| 787 | |
| 788 | static int encode_link(struct xdr_stream *xdr, const struct qstr *name) |
| 789 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 790 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 791 | |
| 792 | RESERVE_SPACE(8 + name->len); |
| 793 | WRITE32(OP_LINK); |
| 794 | WRITE32(name->len); |
| 795 | WRITEMEM(name->name, name->len); |
| 796 | |
| 797 | return 0; |
| 798 | } |
| 799 | |
Trond Myklebust | 911d1aa | 2006-01-03 09:55:16 +0100 | [diff] [blame] | 800 | static inline int nfs4_lock_type(struct file_lock *fl, int block) |
| 801 | { |
| 802 | if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK) |
| 803 | return block ? NFS4_READW_LT : NFS4_READ_LT; |
| 804 | return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; |
| 805 | } |
| 806 | |
| 807 | static inline uint64_t nfs4_lock_length(struct file_lock *fl) |
| 808 | { |
| 809 | if (fl->fl_end == OFFSET_MAX) |
| 810 | return ~(uint64_t)0; |
| 811 | return fl->fl_end - fl->fl_start + 1; |
| 812 | } |
| 813 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 814 | /* |
| 815 | * opcode,type,reclaim,offset,length,new_lock_owner = 32 |
| 816 | * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 |
| 817 | */ |
Trond Myklebust | 911d1aa | 2006-01-03 09:55:16 +0100 | [diff] [blame] | 818 | static int encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 819 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 820 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 821 | |
| 822 | RESERVE_SPACE(32); |
| 823 | WRITE32(OP_LOCK); |
Trond Myklebust | 911d1aa | 2006-01-03 09:55:16 +0100 | [diff] [blame] | 824 | WRITE32(nfs4_lock_type(args->fl, args->block)); |
| 825 | WRITE32(args->reclaim); |
| 826 | WRITE64(args->fl->fl_start); |
| 827 | WRITE64(nfs4_lock_length(args->fl)); |
| 828 | WRITE32(args->new_lock_owner); |
| 829 | if (args->new_lock_owner){ |
Trond Myklebust | 8ae20ab | 2007-05-14 16:50:45 -0400 | [diff] [blame] | 830 | RESERVE_SPACE(4+NFS4_STATEID_SIZE+20); |
Trond Myklebust | 911d1aa | 2006-01-03 09:55:16 +0100 | [diff] [blame] | 831 | WRITE32(args->open_seqid->sequence->counter); |
Trond Myklebust | 8ae20ab | 2007-05-14 16:50:45 -0400 | [diff] [blame] | 832 | WRITEMEM(args->open_stateid->data, NFS4_STATEID_SIZE); |
Trond Myklebust | 911d1aa | 2006-01-03 09:55:16 +0100 | [diff] [blame] | 833 | WRITE32(args->lock_seqid->sequence->counter); |
| 834 | WRITE64(args->lock_owner.clientid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 835 | WRITE32(4); |
Trond Myklebust | 911d1aa | 2006-01-03 09:55:16 +0100 | [diff] [blame] | 836 | WRITE32(args->lock_owner.id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 837 | } |
| 838 | else { |
Trond Myklebust | 8ae20ab | 2007-05-14 16:50:45 -0400 | [diff] [blame] | 839 | RESERVE_SPACE(NFS4_STATEID_SIZE+4); |
| 840 | WRITEMEM(args->lock_stateid->data, NFS4_STATEID_SIZE); |
Trond Myklebust | 911d1aa | 2006-01-03 09:55:16 +0100 | [diff] [blame] | 841 | WRITE32(args->lock_seqid->sequence->counter); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 842 | } |
| 843 | |
| 844 | return 0; |
| 845 | } |
| 846 | |
Trond Myklebust | 911d1aa | 2006-01-03 09:55:16 +0100 | [diff] [blame] | 847 | static int encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 848 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 849 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 850 | |
| 851 | RESERVE_SPACE(40); |
| 852 | WRITE32(OP_LOCKT); |
Trond Myklebust | 911d1aa | 2006-01-03 09:55:16 +0100 | [diff] [blame] | 853 | WRITE32(nfs4_lock_type(args->fl, 0)); |
| 854 | WRITE64(args->fl->fl_start); |
| 855 | WRITE64(nfs4_lock_length(args->fl)); |
| 856 | WRITE64(args->lock_owner.clientid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 857 | WRITE32(4); |
Trond Myklebust | 911d1aa | 2006-01-03 09:55:16 +0100 | [diff] [blame] | 858 | WRITE32(args->lock_owner.id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 859 | |
| 860 | return 0; |
| 861 | } |
| 862 | |
Trond Myklebust | 911d1aa | 2006-01-03 09:55:16 +0100 | [diff] [blame] | 863 | static int encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 864 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 865 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 866 | |
Trond Myklebust | 8ae20ab | 2007-05-14 16:50:45 -0400 | [diff] [blame] | 867 | RESERVE_SPACE(12+NFS4_STATEID_SIZE+16); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 868 | WRITE32(OP_LOCKU); |
Trond Myklebust | 911d1aa | 2006-01-03 09:55:16 +0100 | [diff] [blame] | 869 | WRITE32(nfs4_lock_type(args->fl, 0)); |
| 870 | WRITE32(args->seqid->sequence->counter); |
Trond Myklebust | 8ae20ab | 2007-05-14 16:50:45 -0400 | [diff] [blame] | 871 | WRITEMEM(args->stateid->data, NFS4_STATEID_SIZE); |
Trond Myklebust | 911d1aa | 2006-01-03 09:55:16 +0100 | [diff] [blame] | 872 | WRITE64(args->fl->fl_start); |
| 873 | WRITE64(nfs4_lock_length(args->fl)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 874 | |
| 875 | return 0; |
| 876 | } |
| 877 | |
| 878 | static int encode_lookup(struct xdr_stream *xdr, const struct qstr *name) |
| 879 | { |
| 880 | int len = name->len; |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 881 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 882 | |
| 883 | RESERVE_SPACE(8 + len); |
| 884 | WRITE32(OP_LOOKUP); |
| 885 | WRITE32(len); |
| 886 | WRITEMEM(name->name, len); |
| 887 | |
| 888 | return 0; |
| 889 | } |
| 890 | |
| 891 | static void encode_share_access(struct xdr_stream *xdr, int open_flags) |
| 892 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 893 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 894 | |
| 895 | RESERVE_SPACE(8); |
| 896 | switch (open_flags & (FMODE_READ|FMODE_WRITE)) { |
| 897 | case FMODE_READ: |
| 898 | WRITE32(NFS4_SHARE_ACCESS_READ); |
| 899 | break; |
| 900 | case FMODE_WRITE: |
| 901 | WRITE32(NFS4_SHARE_ACCESS_WRITE); |
| 902 | break; |
| 903 | case FMODE_READ|FMODE_WRITE: |
| 904 | WRITE32(NFS4_SHARE_ACCESS_BOTH); |
| 905 | break; |
| 906 | default: |
| 907 | BUG(); |
| 908 | } |
| 909 | WRITE32(0); /* for linux, share_deny = 0 always */ |
| 910 | } |
| 911 | |
| 912 | static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) |
| 913 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 914 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 915 | /* |
| 916 | * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, |
| 917 | * owner 4 = 32 |
| 918 | */ |
| 919 | RESERVE_SPACE(8); |
| 920 | WRITE32(OP_OPEN); |
Trond Myklebust | cee54fc | 2005-10-18 14:20:12 -0700 | [diff] [blame] | 921 | WRITE32(arg->seqid->sequence->counter); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 922 | encode_share_access(xdr, arg->open_flags); |
| 923 | RESERVE_SPACE(16); |
| 924 | WRITE64(arg->clientid); |
| 925 | WRITE32(4); |
| 926 | WRITE32(arg->id); |
| 927 | } |
| 928 | |
| 929 | static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) |
| 930 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 931 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 932 | |
| 933 | RESERVE_SPACE(4); |
| 934 | switch(arg->open_flags & O_EXCL) { |
| 935 | case 0: |
| 936 | WRITE32(NFS4_CREATE_UNCHECKED); |
| 937 | encode_attrs(xdr, arg->u.attrs, arg->server); |
| 938 | break; |
| 939 | default: |
| 940 | WRITE32(NFS4_CREATE_EXCLUSIVE); |
| 941 | encode_nfs4_verifier(xdr, &arg->u.verifier); |
| 942 | } |
| 943 | } |
| 944 | |
| 945 | static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) |
| 946 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 947 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 948 | |
| 949 | RESERVE_SPACE(4); |
| 950 | switch (arg->open_flags & O_CREAT) { |
| 951 | case 0: |
| 952 | WRITE32(NFS4_OPEN_NOCREATE); |
| 953 | break; |
| 954 | default: |
| 955 | BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); |
| 956 | WRITE32(NFS4_OPEN_CREATE); |
| 957 | encode_createmode(xdr, arg); |
| 958 | } |
| 959 | } |
| 960 | |
| 961 | static inline void encode_delegation_type(struct xdr_stream *xdr, int delegation_type) |
| 962 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 963 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 964 | |
| 965 | RESERVE_SPACE(4); |
| 966 | switch (delegation_type) { |
| 967 | case 0: |
| 968 | WRITE32(NFS4_OPEN_DELEGATE_NONE); |
| 969 | break; |
| 970 | case FMODE_READ: |
| 971 | WRITE32(NFS4_OPEN_DELEGATE_READ); |
| 972 | break; |
| 973 | case FMODE_WRITE|FMODE_READ: |
| 974 | WRITE32(NFS4_OPEN_DELEGATE_WRITE); |
| 975 | break; |
| 976 | default: |
| 977 | BUG(); |
| 978 | } |
| 979 | } |
| 980 | |
| 981 | static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) |
| 982 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 983 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 984 | |
| 985 | RESERVE_SPACE(4); |
| 986 | WRITE32(NFS4_OPEN_CLAIM_NULL); |
| 987 | encode_string(xdr, name->len, name->name); |
| 988 | } |
| 989 | |
| 990 | static inline void encode_claim_previous(struct xdr_stream *xdr, int type) |
| 991 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 992 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 993 | |
| 994 | RESERVE_SPACE(4); |
| 995 | WRITE32(NFS4_OPEN_CLAIM_PREVIOUS); |
| 996 | encode_delegation_type(xdr, type); |
| 997 | } |
| 998 | |
| 999 | static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) |
| 1000 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1001 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1002 | |
Trond Myklebust | 8ae20ab | 2007-05-14 16:50:45 -0400 | [diff] [blame] | 1003 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1004 | WRITE32(NFS4_OPEN_CLAIM_DELEGATE_CUR); |
Trond Myklebust | 8ae20ab | 2007-05-14 16:50:45 -0400 | [diff] [blame] | 1005 | WRITEMEM(stateid->data, NFS4_STATEID_SIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1006 | encode_string(xdr, name->len, name->name); |
| 1007 | } |
| 1008 | |
| 1009 | static int encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg) |
| 1010 | { |
| 1011 | encode_openhdr(xdr, arg); |
| 1012 | encode_opentype(xdr, arg); |
| 1013 | switch (arg->claim) { |
| 1014 | case NFS4_OPEN_CLAIM_NULL: |
| 1015 | encode_claim_null(xdr, arg->name); |
| 1016 | break; |
| 1017 | case NFS4_OPEN_CLAIM_PREVIOUS: |
| 1018 | encode_claim_previous(xdr, arg->u.delegation_type); |
| 1019 | break; |
| 1020 | case NFS4_OPEN_CLAIM_DELEGATE_CUR: |
| 1021 | encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); |
| 1022 | break; |
| 1023 | default: |
| 1024 | BUG(); |
| 1025 | } |
| 1026 | return 0; |
| 1027 | } |
| 1028 | |
| 1029 | static int encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg) |
| 1030 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1031 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1032 | |
Trond Myklebust | 8ae20ab | 2007-05-14 16:50:45 -0400 | [diff] [blame] | 1033 | RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1034 | WRITE32(OP_OPEN_CONFIRM); |
Trond Myklebust | 8ae20ab | 2007-05-14 16:50:45 -0400 | [diff] [blame] | 1035 | WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); |
Trond Myklebust | cee54fc | 2005-10-18 14:20:12 -0700 | [diff] [blame] | 1036 | WRITE32(arg->seqid->sequence->counter); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1037 | |
| 1038 | return 0; |
| 1039 | } |
| 1040 | |
| 1041 | static int encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg) |
| 1042 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1043 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1044 | |
Trond Myklebust | 8ae20ab | 2007-05-14 16:50:45 -0400 | [diff] [blame] | 1045 | RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1046 | WRITE32(OP_OPEN_DOWNGRADE); |
Trond Myklebust | 8ae20ab | 2007-05-14 16:50:45 -0400 | [diff] [blame] | 1047 | WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); |
Trond Myklebust | cee54fc | 2005-10-18 14:20:12 -0700 | [diff] [blame] | 1048 | WRITE32(arg->seqid->sequence->counter); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1049 | encode_share_access(xdr, arg->open_flags); |
| 1050 | return 0; |
| 1051 | } |
| 1052 | |
| 1053 | static int |
| 1054 | encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh) |
| 1055 | { |
| 1056 | int len = fh->size; |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1057 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1058 | |
| 1059 | RESERVE_SPACE(8 + len); |
| 1060 | WRITE32(OP_PUTFH); |
| 1061 | WRITE32(len); |
| 1062 | WRITEMEM(fh->data, len); |
| 1063 | |
| 1064 | return 0; |
| 1065 | } |
| 1066 | |
| 1067 | static int encode_putrootfh(struct xdr_stream *xdr) |
| 1068 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1069 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1070 | |
| 1071 | RESERVE_SPACE(4); |
| 1072 | WRITE32(OP_PUTROOTFH); |
| 1073 | |
| 1074 | return 0; |
| 1075 | } |
| 1076 | |
| 1077 | static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx) |
| 1078 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1079 | nfs4_stateid stateid; |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1080 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1081 | |
Trond Myklebust | 8ae20ab | 2007-05-14 16:50:45 -0400 | [diff] [blame] | 1082 | RESERVE_SPACE(NFS4_STATEID_SIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1083 | if (ctx->state != NULL) { |
| 1084 | nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner); |
Trond Myklebust | 8ae20ab | 2007-05-14 16:50:45 -0400 | [diff] [blame] | 1085 | WRITEMEM(stateid.data, NFS4_STATEID_SIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1086 | } else |
Trond Myklebust | 8ae20ab | 2007-05-14 16:50:45 -0400 | [diff] [blame] | 1087 | WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1088 | } |
| 1089 | |
| 1090 | static int encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args) |
| 1091 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1092 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1093 | |
| 1094 | RESERVE_SPACE(4); |
| 1095 | WRITE32(OP_READ); |
| 1096 | |
| 1097 | encode_stateid(xdr, args->context); |
| 1098 | |
| 1099 | RESERVE_SPACE(12); |
| 1100 | WRITE64(args->offset); |
| 1101 | WRITE32(args->count); |
| 1102 | |
| 1103 | return 0; |
| 1104 | } |
| 1105 | |
| 1106 | static int encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req) |
| 1107 | { |
Trond Myklebust | 1be27f3 | 2007-06-27 14:29:04 -0400 | [diff] [blame] | 1108 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
Manoj Naik | 97d312d | 2005-06-22 17:16:39 +0000 | [diff] [blame] | 1109 | uint32_t attrs[2] = { |
| 1110 | FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID, |
| 1111 | FATTR4_WORD1_MOUNTED_ON_FILEID, |
| 1112 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1113 | int replen; |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1114 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1115 | |
Trond Myklebust | 8ae20ab | 2007-05-14 16:50:45 -0400 | [diff] [blame] | 1116 | RESERVE_SPACE(12+NFS4_VERIFIER_SIZE+20); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1117 | WRITE32(OP_READDIR); |
| 1118 | WRITE64(readdir->cookie); |
Trond Myklebust | 8ae20ab | 2007-05-14 16:50:45 -0400 | [diff] [blame] | 1119 | WRITEMEM(readdir->verifier.data, NFS4_VERIFIER_SIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1120 | WRITE32(readdir->count >> 1); /* We're not doing readdirplus */ |
| 1121 | WRITE32(readdir->count); |
| 1122 | WRITE32(2); |
Manoj Naik | 97d312d | 2005-06-22 17:16:39 +0000 | [diff] [blame] | 1123 | /* Switch to mounted_on_fileid if the server supports it */ |
| 1124 | if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) |
| 1125 | attrs[0] &= ~FATTR4_WORD0_FILEID; |
| 1126 | else |
| 1127 | attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; |
| 1128 | WRITE32(attrs[0] & readdir->bitmask[0]); |
| 1129 | WRITE32(attrs[1] & readdir->bitmask[1]); |
Trond Myklebust | eadf459 | 2005-06-22 17:16:39 +0000 | [diff] [blame] | 1130 | dprintk("%s: cookie = %Lu, verifier = 0x%x%x, bitmap = 0x%x%x\n", |
| 1131 | __FUNCTION__, |
| 1132 | (unsigned long long)readdir->cookie, |
| 1133 | ((u32 *)readdir->verifier.data)[0], |
| 1134 | ((u32 *)readdir->verifier.data)[1], |
| 1135 | attrs[0] & readdir->bitmask[0], |
| 1136 | attrs[1] & readdir->bitmask[1]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1137 | |
| 1138 | /* set up reply kvec |
| 1139 | * toplevel_status + taglen + rescount + OP_PUTFH + status |
| 1140 | * + OP_READDIR + status + verifer(2) = 9 |
| 1141 | */ |
| 1142 | replen = (RPC_REPHDRSIZE + auth->au_rslack + 9) << 2; |
| 1143 | xdr_inline_pages(&req->rq_rcv_buf, replen, readdir->pages, |
| 1144 | readdir->pgbase, readdir->count); |
Trond Myklebust | eadf459 | 2005-06-22 17:16:39 +0000 | [diff] [blame] | 1145 | dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", |
| 1146 | __FUNCTION__, replen, readdir->pages, |
| 1147 | readdir->pgbase, readdir->count); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1148 | |
| 1149 | return 0; |
| 1150 | } |
| 1151 | |
| 1152 | static int encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req) |
| 1153 | { |
Trond Myklebust | 1be27f3 | 2007-06-27 14:29:04 -0400 | [diff] [blame] | 1154 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1155 | unsigned int replen; |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1156 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1157 | |
| 1158 | RESERVE_SPACE(4); |
| 1159 | WRITE32(OP_READLINK); |
| 1160 | |
| 1161 | /* set up reply kvec |
| 1162 | * toplevel_status + taglen + rescount + OP_PUTFH + status |
| 1163 | * + OP_READLINK + status + string length = 8 |
| 1164 | */ |
| 1165 | replen = (RPC_REPHDRSIZE + auth->au_rslack + 8) << 2; |
| 1166 | xdr_inline_pages(&req->rq_rcv_buf, replen, readlink->pages, |
| 1167 | readlink->pgbase, readlink->pglen); |
| 1168 | |
| 1169 | return 0; |
| 1170 | } |
| 1171 | |
| 1172 | static int encode_remove(struct xdr_stream *xdr, const struct qstr *name) |
| 1173 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1174 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1175 | |
| 1176 | RESERVE_SPACE(8 + name->len); |
| 1177 | WRITE32(OP_REMOVE); |
| 1178 | WRITE32(name->len); |
| 1179 | WRITEMEM(name->name, name->len); |
| 1180 | |
| 1181 | return 0; |
| 1182 | } |
| 1183 | |
| 1184 | static int encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname) |
| 1185 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1186 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1187 | |
| 1188 | RESERVE_SPACE(8 + oldname->len); |
| 1189 | WRITE32(OP_RENAME); |
| 1190 | WRITE32(oldname->len); |
| 1191 | WRITEMEM(oldname->name, oldname->len); |
| 1192 | |
| 1193 | RESERVE_SPACE(4 + newname->len); |
| 1194 | WRITE32(newname->len); |
| 1195 | WRITEMEM(newname->name, newname->len); |
| 1196 | |
| 1197 | return 0; |
| 1198 | } |
| 1199 | |
David Howells | adfa6f9 | 2006-08-22 20:06:08 -0400 | [diff] [blame] | 1200 | static int encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1201 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1202 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1203 | |
| 1204 | RESERVE_SPACE(12); |
| 1205 | WRITE32(OP_RENEW); |
| 1206 | WRITE64(client_stateid->cl_clientid); |
| 1207 | |
| 1208 | return 0; |
| 1209 | } |
| 1210 | |
| 1211 | static int |
Trond Myklebust | 56ae19f | 2005-10-27 22:12:40 -0400 | [diff] [blame] | 1212 | encode_restorefh(struct xdr_stream *xdr) |
| 1213 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1214 | __be32 *p; |
Trond Myklebust | 56ae19f | 2005-10-27 22:12:40 -0400 | [diff] [blame] | 1215 | |
| 1216 | RESERVE_SPACE(4); |
| 1217 | WRITE32(OP_RESTOREFH); |
| 1218 | |
| 1219 | return 0; |
| 1220 | } |
| 1221 | |
| 1222 | static int |
J. Bruce Fields | 23ec696 | 2005-06-22 17:16:22 +0000 | [diff] [blame] | 1223 | encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg) |
| 1224 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1225 | __be32 *p; |
J. Bruce Fields | 23ec696 | 2005-06-22 17:16:22 +0000 | [diff] [blame] | 1226 | |
Trond Myklebust | 8ae20ab | 2007-05-14 16:50:45 -0400 | [diff] [blame] | 1227 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
J. Bruce Fields | 23ec696 | 2005-06-22 17:16:22 +0000 | [diff] [blame] | 1228 | WRITE32(OP_SETATTR); |
Trond Myklebust | 8ae20ab | 2007-05-14 16:50:45 -0400 | [diff] [blame] | 1229 | WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); |
J. Bruce Fields | 23ec696 | 2005-06-22 17:16:22 +0000 | [diff] [blame] | 1230 | RESERVE_SPACE(2*4); |
| 1231 | WRITE32(1); |
| 1232 | WRITE32(FATTR4_WORD0_ACL); |
| 1233 | if (arg->acl_len % 4) |
| 1234 | return -EINVAL; |
| 1235 | RESERVE_SPACE(4); |
| 1236 | WRITE32(arg->acl_len); |
| 1237 | xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); |
| 1238 | return 0; |
| 1239 | } |
| 1240 | |
| 1241 | static int |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1242 | encode_savefh(struct xdr_stream *xdr) |
| 1243 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1244 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1245 | |
| 1246 | RESERVE_SPACE(4); |
| 1247 | WRITE32(OP_SAVEFH); |
| 1248 | |
| 1249 | return 0; |
| 1250 | } |
| 1251 | |
| 1252 | static int encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server) |
| 1253 | { |
| 1254 | int status; |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1255 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1256 | |
Trond Myklebust | 8ae20ab | 2007-05-14 16:50:45 -0400 | [diff] [blame] | 1257 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1258 | WRITE32(OP_SETATTR); |
Trond Myklebust | 8ae20ab | 2007-05-14 16:50:45 -0400 | [diff] [blame] | 1259 | WRITEMEM(arg->stateid.data, NFS4_STATEID_SIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1260 | |
| 1261 | if ((status = encode_attrs(xdr, arg->iap, server))) |
| 1262 | return status; |
| 1263 | |
| 1264 | return 0; |
| 1265 | } |
| 1266 | |
| 1267 | static int encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid) |
| 1268 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1269 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1270 | |
Trond Myklebust | 8ae20ab | 2007-05-14 16:50:45 -0400 | [diff] [blame] | 1271 | RESERVE_SPACE(4 + NFS4_VERIFIER_SIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1272 | WRITE32(OP_SETCLIENTID); |
Trond Myklebust | 8ae20ab | 2007-05-14 16:50:45 -0400 | [diff] [blame] | 1273 | WRITEMEM(setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1274 | |
| 1275 | encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); |
| 1276 | RESERVE_SPACE(4); |
| 1277 | WRITE32(setclientid->sc_prog); |
| 1278 | encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); |
| 1279 | encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); |
| 1280 | RESERVE_SPACE(4); |
| 1281 | WRITE32(setclientid->sc_cb_ident); |
| 1282 | |
| 1283 | return 0; |
| 1284 | } |
| 1285 | |
David Howells | adfa6f9 | 2006-08-22 20:06:08 -0400 | [diff] [blame] | 1286 | static int encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs_client *client_state) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1287 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1288 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1289 | |
Trond Myklebust | 8ae20ab | 2007-05-14 16:50:45 -0400 | [diff] [blame] | 1290 | RESERVE_SPACE(12 + NFS4_VERIFIER_SIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1291 | WRITE32(OP_SETCLIENTID_CONFIRM); |
| 1292 | WRITE64(client_state->cl_clientid); |
Trond Myklebust | 8ae20ab | 2007-05-14 16:50:45 -0400 | [diff] [blame] | 1293 | WRITEMEM(client_state->cl_confirm.data, NFS4_VERIFIER_SIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1294 | |
| 1295 | return 0; |
| 1296 | } |
| 1297 | |
| 1298 | static int encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args) |
| 1299 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1300 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1301 | |
| 1302 | RESERVE_SPACE(4); |
| 1303 | WRITE32(OP_WRITE); |
| 1304 | |
| 1305 | encode_stateid(xdr, args->context); |
| 1306 | |
| 1307 | RESERVE_SPACE(16); |
| 1308 | WRITE64(args->offset); |
| 1309 | WRITE32(args->stable); |
| 1310 | WRITE32(args->count); |
| 1311 | |
| 1312 | xdr_write_pages(xdr, args->pages, args->pgbase, args->count); |
| 1313 | |
| 1314 | return 0; |
| 1315 | } |
| 1316 | |
| 1317 | static int encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid) |
| 1318 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1319 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1320 | |
Trond Myklebust | 8ae20ab | 2007-05-14 16:50:45 -0400 | [diff] [blame] | 1321 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1322 | |
| 1323 | WRITE32(OP_DELEGRETURN); |
Trond Myklebust | 8ae20ab | 2007-05-14 16:50:45 -0400 | [diff] [blame] | 1324 | WRITEMEM(stateid->data, NFS4_STATEID_SIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1325 | return 0; |
| 1326 | |
| 1327 | } |
| 1328 | /* |
| 1329 | * END OF "GENERIC" ENCODE ROUTINES. |
| 1330 | */ |
| 1331 | |
| 1332 | /* |
| 1333 | * Encode an ACCESS request |
| 1334 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1335 | static int nfs4_xdr_enc_access(struct rpc_rqst *req, __be32 *p, const struct nfs4_accessargs *args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1336 | { |
| 1337 | struct xdr_stream xdr; |
| 1338 | struct compound_hdr hdr = { |
| 1339 | .nops = 2, |
| 1340 | }; |
| 1341 | int status; |
| 1342 | |
| 1343 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1344 | encode_compound_hdr(&xdr, &hdr); |
| 1345 | if ((status = encode_putfh(&xdr, args->fh)) == 0) |
| 1346 | status = encode_access(&xdr, args->access); |
| 1347 | return status; |
| 1348 | } |
| 1349 | |
| 1350 | /* |
| 1351 | * Encode LOOKUP request |
| 1352 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1353 | static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_arg *args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1354 | { |
| 1355 | struct xdr_stream xdr; |
| 1356 | struct compound_hdr hdr = { |
| 1357 | .nops = 4, |
| 1358 | }; |
| 1359 | int status; |
| 1360 | |
| 1361 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1362 | encode_compound_hdr(&xdr, &hdr); |
| 1363 | if ((status = encode_putfh(&xdr, args->dir_fh)) != 0) |
| 1364 | goto out; |
| 1365 | if ((status = encode_lookup(&xdr, args->name)) != 0) |
| 1366 | goto out; |
| 1367 | if ((status = encode_getfh(&xdr)) != 0) |
| 1368 | goto out; |
| 1369 | status = encode_getfattr(&xdr, args->bitmask); |
| 1370 | out: |
| 1371 | return status; |
| 1372 | } |
| 1373 | |
| 1374 | /* |
| 1375 | * Encode LOOKUP_ROOT request |
| 1376 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1377 | static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_root_arg *args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1378 | { |
| 1379 | struct xdr_stream xdr; |
| 1380 | struct compound_hdr hdr = { |
| 1381 | .nops = 3, |
| 1382 | }; |
| 1383 | int status; |
| 1384 | |
| 1385 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1386 | encode_compound_hdr(&xdr, &hdr); |
| 1387 | if ((status = encode_putrootfh(&xdr)) != 0) |
| 1388 | goto out; |
| 1389 | if ((status = encode_getfh(&xdr)) == 0) |
| 1390 | status = encode_getfattr(&xdr, args->bitmask); |
| 1391 | out: |
| 1392 | return status; |
| 1393 | } |
| 1394 | |
| 1395 | /* |
| 1396 | * Encode REMOVE request |
| 1397 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1398 | static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs4_remove_arg *args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1399 | { |
| 1400 | struct xdr_stream xdr; |
| 1401 | struct compound_hdr hdr = { |
Trond Myklebust | 16e4295 | 2005-10-27 22:12:44 -0400 | [diff] [blame] | 1402 | .nops = 3, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1403 | }; |
| 1404 | int status; |
| 1405 | |
| 1406 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1407 | encode_compound_hdr(&xdr, &hdr); |
Trond Myklebust | 16e4295 | 2005-10-27 22:12:44 -0400 | [diff] [blame] | 1408 | if ((status = encode_putfh(&xdr, args->fh)) != 0) |
| 1409 | goto out; |
| 1410 | if ((status = encode_remove(&xdr, args->name)) != 0) |
| 1411 | goto out; |
| 1412 | status = encode_getfattr(&xdr, args->bitmask); |
| 1413 | out: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1414 | return status; |
| 1415 | } |
| 1416 | |
| 1417 | /* |
| 1418 | * Encode RENAME request |
| 1419 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1420 | static int nfs4_xdr_enc_rename(struct rpc_rqst *req, __be32 *p, const struct nfs4_rename_arg *args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1421 | { |
| 1422 | struct xdr_stream xdr; |
| 1423 | struct compound_hdr hdr = { |
Trond Myklebust | 6caf2c8 | 2005-10-27 22:12:43 -0400 | [diff] [blame] | 1424 | .nops = 7, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1425 | }; |
| 1426 | int status; |
| 1427 | |
| 1428 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1429 | encode_compound_hdr(&xdr, &hdr); |
| 1430 | if ((status = encode_putfh(&xdr, args->old_dir)) != 0) |
| 1431 | goto out; |
| 1432 | if ((status = encode_savefh(&xdr)) != 0) |
| 1433 | goto out; |
| 1434 | if ((status = encode_putfh(&xdr, args->new_dir)) != 0) |
| 1435 | goto out; |
Trond Myklebust | 6caf2c8 | 2005-10-27 22:12:43 -0400 | [diff] [blame] | 1436 | if ((status = encode_rename(&xdr, args->old_name, args->new_name)) != 0) |
| 1437 | goto out; |
| 1438 | if ((status = encode_getfattr(&xdr, args->bitmask)) != 0) |
| 1439 | goto out; |
| 1440 | if ((status = encode_restorefh(&xdr)) != 0) |
| 1441 | goto out; |
| 1442 | status = encode_getfattr(&xdr, args->bitmask); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1443 | out: |
| 1444 | return status; |
| 1445 | } |
| 1446 | |
| 1447 | /* |
| 1448 | * Encode LINK request |
| 1449 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1450 | static int nfs4_xdr_enc_link(struct rpc_rqst *req, __be32 *p, const struct nfs4_link_arg *args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1451 | { |
| 1452 | struct xdr_stream xdr; |
| 1453 | struct compound_hdr hdr = { |
Trond Myklebust | 91ba2ee | 2005-10-27 22:12:42 -0400 | [diff] [blame] | 1454 | .nops = 7, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1455 | }; |
| 1456 | int status; |
| 1457 | |
| 1458 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1459 | encode_compound_hdr(&xdr, &hdr); |
| 1460 | if ((status = encode_putfh(&xdr, args->fh)) != 0) |
| 1461 | goto out; |
| 1462 | if ((status = encode_savefh(&xdr)) != 0) |
| 1463 | goto out; |
| 1464 | if ((status = encode_putfh(&xdr, args->dir_fh)) != 0) |
| 1465 | goto out; |
Trond Myklebust | 91ba2ee | 2005-10-27 22:12:42 -0400 | [diff] [blame] | 1466 | if ((status = encode_link(&xdr, args->name)) != 0) |
| 1467 | goto out; |
| 1468 | if ((status = encode_getfattr(&xdr, args->bitmask)) != 0) |
| 1469 | goto out; |
| 1470 | if ((status = encode_restorefh(&xdr)) != 0) |
| 1471 | goto out; |
| 1472 | status = encode_getfattr(&xdr, args->bitmask); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1473 | out: |
| 1474 | return status; |
| 1475 | } |
| 1476 | |
| 1477 | /* |
| 1478 | * Encode CREATE request |
| 1479 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1480 | static int nfs4_xdr_enc_create(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1481 | { |
| 1482 | struct xdr_stream xdr; |
| 1483 | struct compound_hdr hdr = { |
Trond Myklebust | 56ae19f | 2005-10-27 22:12:40 -0400 | [diff] [blame] | 1484 | .nops = 7, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1485 | }; |
| 1486 | int status; |
| 1487 | |
| 1488 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1489 | encode_compound_hdr(&xdr, &hdr); |
| 1490 | if ((status = encode_putfh(&xdr, args->dir_fh)) != 0) |
| 1491 | goto out; |
Trond Myklebust | 56ae19f | 2005-10-27 22:12:40 -0400 | [diff] [blame] | 1492 | if ((status = encode_savefh(&xdr)) != 0) |
| 1493 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1494 | if ((status = encode_create(&xdr, args)) != 0) |
| 1495 | goto out; |
| 1496 | if ((status = encode_getfh(&xdr)) != 0) |
| 1497 | goto out; |
Trond Myklebust | 56ae19f | 2005-10-27 22:12:40 -0400 | [diff] [blame] | 1498 | if ((status = encode_getfattr(&xdr, args->bitmask)) != 0) |
| 1499 | goto out; |
| 1500 | if ((status = encode_restorefh(&xdr)) != 0) |
| 1501 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1502 | status = encode_getfattr(&xdr, args->bitmask); |
| 1503 | out: |
| 1504 | return status; |
| 1505 | } |
| 1506 | |
| 1507 | /* |
| 1508 | * Encode SYMLINK request |
| 1509 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1510 | static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1511 | { |
| 1512 | return nfs4_xdr_enc_create(req, p, args); |
| 1513 | } |
| 1514 | |
| 1515 | /* |
| 1516 | * Encode GETATTR request |
| 1517 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1518 | static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, __be32 *p, const struct nfs4_getattr_arg *args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1519 | { |
| 1520 | struct xdr_stream xdr; |
| 1521 | struct compound_hdr hdr = { |
| 1522 | .nops = 2, |
| 1523 | }; |
| 1524 | int status; |
| 1525 | |
| 1526 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1527 | encode_compound_hdr(&xdr, &hdr); |
| 1528 | if ((status = encode_putfh(&xdr, args->fh)) == 0) |
| 1529 | status = encode_getfattr(&xdr, args->bitmask); |
| 1530 | return status; |
| 1531 | } |
| 1532 | |
| 1533 | /* |
| 1534 | * Encode a CLOSE request |
| 1535 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1536 | static int nfs4_xdr_enc_close(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1537 | { |
| 1538 | struct xdr_stream xdr; |
| 1539 | struct compound_hdr hdr = { |
Trond Myklebust | 516a6af | 2005-10-27 22:12:41 -0400 | [diff] [blame] | 1540 | .nops = 3, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1541 | }; |
| 1542 | int status; |
| 1543 | |
| 1544 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1545 | encode_compound_hdr(&xdr, &hdr); |
| 1546 | status = encode_putfh(&xdr, args->fh); |
| 1547 | if(status) |
| 1548 | goto out; |
| 1549 | status = encode_close(&xdr, args); |
Trond Myklebust | 516a6af | 2005-10-27 22:12:41 -0400 | [diff] [blame] | 1550 | if (status != 0) |
| 1551 | goto out; |
| 1552 | status = encode_getfattr(&xdr, args->bitmask); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1553 | out: |
| 1554 | return status; |
| 1555 | } |
| 1556 | |
| 1557 | /* |
| 1558 | * Encode an OPEN request |
| 1559 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1560 | static int nfs4_xdr_enc_open(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1561 | { |
| 1562 | struct xdr_stream xdr; |
| 1563 | struct compound_hdr hdr = { |
Trond Myklebust | 56ae19f | 2005-10-27 22:12:40 -0400 | [diff] [blame] | 1564 | .nops = 7, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1565 | }; |
| 1566 | int status; |
| 1567 | |
| 1568 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1569 | encode_compound_hdr(&xdr, &hdr); |
| 1570 | status = encode_putfh(&xdr, args->fh); |
| 1571 | if (status) |
| 1572 | goto out; |
Trond Myklebust | 56ae19f | 2005-10-27 22:12:40 -0400 | [diff] [blame] | 1573 | status = encode_savefh(&xdr); |
| 1574 | if (status) |
| 1575 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1576 | status = encode_open(&xdr, args); |
| 1577 | if (status) |
| 1578 | goto out; |
| 1579 | status = encode_getfh(&xdr); |
| 1580 | if (status) |
| 1581 | goto out; |
| 1582 | status = encode_getfattr(&xdr, args->bitmask); |
Trond Myklebust | 56ae19f | 2005-10-27 22:12:40 -0400 | [diff] [blame] | 1583 | if (status) |
| 1584 | goto out; |
| 1585 | status = encode_restorefh(&xdr); |
| 1586 | if (status) |
| 1587 | goto out; |
| 1588 | status = encode_getfattr(&xdr, args->bitmask); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1589 | out: |
| 1590 | return status; |
| 1591 | } |
| 1592 | |
| 1593 | /* |
| 1594 | * Encode an OPEN_CONFIRM request |
| 1595 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1596 | static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_open_confirmargs *args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1597 | { |
| 1598 | struct xdr_stream xdr; |
| 1599 | struct compound_hdr hdr = { |
| 1600 | .nops = 2, |
| 1601 | }; |
| 1602 | int status; |
| 1603 | |
| 1604 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1605 | encode_compound_hdr(&xdr, &hdr); |
| 1606 | status = encode_putfh(&xdr, args->fh); |
| 1607 | if(status) |
| 1608 | goto out; |
| 1609 | status = encode_open_confirm(&xdr, args); |
| 1610 | out: |
| 1611 | return status; |
| 1612 | } |
| 1613 | |
| 1614 | /* |
| 1615 | * Encode an OPEN request with no attributes. |
| 1616 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1617 | static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1618 | { |
| 1619 | struct xdr_stream xdr; |
| 1620 | struct compound_hdr hdr = { |
Trond Myklebust | 864472e | 2006-01-03 09:55:15 +0100 | [diff] [blame] | 1621 | .nops = 3, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1622 | }; |
| 1623 | int status; |
| 1624 | |
| 1625 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1626 | encode_compound_hdr(&xdr, &hdr); |
| 1627 | status = encode_putfh(&xdr, args->fh); |
| 1628 | if (status) |
| 1629 | goto out; |
| 1630 | status = encode_open(&xdr, args); |
Trond Myklebust | 864472e | 2006-01-03 09:55:15 +0100 | [diff] [blame] | 1631 | if (status) |
| 1632 | goto out; |
| 1633 | status = encode_getfattr(&xdr, args->bitmask); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1634 | out: |
| 1635 | return status; |
| 1636 | } |
| 1637 | |
| 1638 | /* |
| 1639 | * Encode an OPEN_DOWNGRADE request |
| 1640 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1641 | static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1642 | { |
| 1643 | struct xdr_stream xdr; |
| 1644 | struct compound_hdr hdr = { |
Trond Myklebust | 516a6af | 2005-10-27 22:12:41 -0400 | [diff] [blame] | 1645 | .nops = 3, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1646 | }; |
| 1647 | int status; |
| 1648 | |
| 1649 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1650 | encode_compound_hdr(&xdr, &hdr); |
| 1651 | status = encode_putfh(&xdr, args->fh); |
| 1652 | if (status) |
| 1653 | goto out; |
| 1654 | status = encode_open_downgrade(&xdr, args); |
Trond Myklebust | 516a6af | 2005-10-27 22:12:41 -0400 | [diff] [blame] | 1655 | if (status != 0) |
| 1656 | goto out; |
| 1657 | status = encode_getfattr(&xdr, args->bitmask); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1658 | out: |
| 1659 | return status; |
| 1660 | } |
| 1661 | |
| 1662 | /* |
| 1663 | * Encode a LOCK request |
| 1664 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1665 | static int nfs4_xdr_enc_lock(struct rpc_rqst *req, __be32 *p, struct nfs_lock_args *args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1666 | { |
| 1667 | struct xdr_stream xdr; |
| 1668 | struct compound_hdr hdr = { |
| 1669 | .nops = 2, |
| 1670 | }; |
| 1671 | int status; |
| 1672 | |
| 1673 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1674 | encode_compound_hdr(&xdr, &hdr); |
| 1675 | status = encode_putfh(&xdr, args->fh); |
| 1676 | if(status) |
| 1677 | goto out; |
| 1678 | status = encode_lock(&xdr, args); |
| 1679 | out: |
| 1680 | return status; |
| 1681 | } |
| 1682 | |
| 1683 | /* |
| 1684 | * Encode a LOCKT request |
| 1685 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1686 | static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, __be32 *p, struct nfs_lockt_args *args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1687 | { |
| 1688 | struct xdr_stream xdr; |
| 1689 | struct compound_hdr hdr = { |
| 1690 | .nops = 2, |
| 1691 | }; |
| 1692 | int status; |
| 1693 | |
| 1694 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1695 | encode_compound_hdr(&xdr, &hdr); |
| 1696 | status = encode_putfh(&xdr, args->fh); |
| 1697 | if(status) |
| 1698 | goto out; |
| 1699 | status = encode_lockt(&xdr, args); |
| 1700 | out: |
| 1701 | return status; |
| 1702 | } |
| 1703 | |
| 1704 | /* |
| 1705 | * Encode a LOCKU request |
| 1706 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1707 | static int nfs4_xdr_enc_locku(struct rpc_rqst *req, __be32 *p, struct nfs_locku_args *args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1708 | { |
| 1709 | struct xdr_stream xdr; |
| 1710 | struct compound_hdr hdr = { |
| 1711 | .nops = 2, |
| 1712 | }; |
| 1713 | int status; |
| 1714 | |
| 1715 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1716 | encode_compound_hdr(&xdr, &hdr); |
| 1717 | status = encode_putfh(&xdr, args->fh); |
| 1718 | if(status) |
| 1719 | goto out; |
| 1720 | status = encode_locku(&xdr, args); |
| 1721 | out: |
| 1722 | return status; |
| 1723 | } |
| 1724 | |
| 1725 | /* |
| 1726 | * Encode a READLINK request |
| 1727 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1728 | static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_readlink *args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1729 | { |
| 1730 | struct xdr_stream xdr; |
| 1731 | struct compound_hdr hdr = { |
| 1732 | .nops = 2, |
| 1733 | }; |
| 1734 | int status; |
| 1735 | |
| 1736 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1737 | encode_compound_hdr(&xdr, &hdr); |
| 1738 | status = encode_putfh(&xdr, args->fh); |
| 1739 | if(status) |
| 1740 | goto out; |
| 1741 | status = encode_readlink(&xdr, args, req); |
| 1742 | out: |
| 1743 | return status; |
| 1744 | } |
| 1745 | |
| 1746 | /* |
| 1747 | * Encode a READDIR request |
| 1748 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1749 | static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nfs4_readdir_arg *args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1750 | { |
| 1751 | struct xdr_stream xdr; |
| 1752 | struct compound_hdr hdr = { |
| 1753 | .nops = 2, |
| 1754 | }; |
| 1755 | int status; |
| 1756 | |
| 1757 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1758 | encode_compound_hdr(&xdr, &hdr); |
| 1759 | status = encode_putfh(&xdr, args->fh); |
| 1760 | if(status) |
| 1761 | goto out; |
| 1762 | status = encode_readdir(&xdr, args, req); |
| 1763 | out: |
| 1764 | return status; |
| 1765 | } |
| 1766 | |
| 1767 | /* |
| 1768 | * Encode a READ request |
| 1769 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1770 | static int nfs4_xdr_enc_read(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1771 | { |
Trond Myklebust | 1be27f3 | 2007-06-27 14:29:04 -0400 | [diff] [blame] | 1772 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1773 | struct xdr_stream xdr; |
| 1774 | struct compound_hdr hdr = { |
| 1775 | .nops = 2, |
| 1776 | }; |
| 1777 | int replen, status; |
| 1778 | |
| 1779 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1780 | encode_compound_hdr(&xdr, &hdr); |
| 1781 | status = encode_putfh(&xdr, args->fh); |
| 1782 | if (status) |
| 1783 | goto out; |
| 1784 | status = encode_read(&xdr, args); |
| 1785 | if (status) |
| 1786 | goto out; |
| 1787 | |
| 1788 | /* set up reply kvec |
| 1789 | * toplevel status + taglen=0 + rescount + OP_PUTFH + status |
| 1790 | * + OP_READ + status + eof + datalen = 9 |
| 1791 | */ |
| 1792 | replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_read_sz) << 2; |
| 1793 | xdr_inline_pages(&req->rq_rcv_buf, replen, |
| 1794 | args->pages, args->pgbase, args->count); |
| 1795 | out: |
| 1796 | return status; |
| 1797 | } |
| 1798 | |
| 1799 | /* |
| 1800 | * Encode an SETATTR request |
| 1801 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1802 | static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, __be32 *p, struct nfs_setattrargs *args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1803 | |
| 1804 | { |
| 1805 | struct xdr_stream xdr; |
| 1806 | struct compound_hdr hdr = { |
| 1807 | .nops = 3, |
| 1808 | }; |
| 1809 | int status; |
| 1810 | |
| 1811 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1812 | encode_compound_hdr(&xdr, &hdr); |
| 1813 | status = encode_putfh(&xdr, args->fh); |
| 1814 | if(status) |
| 1815 | goto out; |
| 1816 | status = encode_setattr(&xdr, args, args->server); |
| 1817 | if(status) |
| 1818 | goto out; |
| 1819 | status = encode_getfattr(&xdr, args->bitmask); |
| 1820 | out: |
| 1821 | return status; |
| 1822 | } |
| 1823 | |
| 1824 | /* |
J. Bruce Fields | 029d105 | 2005-06-22 17:16:22 +0000 | [diff] [blame] | 1825 | * Encode a GETACL request |
| 1826 | */ |
| 1827 | static int |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1828 | nfs4_xdr_enc_getacl(struct rpc_rqst *req, __be32 *p, |
J. Bruce Fields | 029d105 | 2005-06-22 17:16:22 +0000 | [diff] [blame] | 1829 | struct nfs_getaclargs *args) |
| 1830 | { |
| 1831 | struct xdr_stream xdr; |
Trond Myklebust | 1be27f3 | 2007-06-27 14:29:04 -0400 | [diff] [blame] | 1832 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
J. Bruce Fields | 029d105 | 2005-06-22 17:16:22 +0000 | [diff] [blame] | 1833 | struct compound_hdr hdr = { |
| 1834 | .nops = 2, |
| 1835 | }; |
| 1836 | int replen, status; |
| 1837 | |
| 1838 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1839 | encode_compound_hdr(&xdr, &hdr); |
| 1840 | status = encode_putfh(&xdr, args->fh); |
| 1841 | if (status) |
| 1842 | goto out; |
| 1843 | status = encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0); |
| 1844 | /* set up reply buffer: */ |
| 1845 | replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_getacl_sz) << 2; |
| 1846 | xdr_inline_pages(&req->rq_rcv_buf, replen, |
| 1847 | args->acl_pages, args->acl_pgbase, args->acl_len); |
| 1848 | out: |
| 1849 | return status; |
| 1850 | } |
| 1851 | |
| 1852 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1853 | * Encode a WRITE request |
| 1854 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1855 | static int nfs4_xdr_enc_write(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1856 | { |
| 1857 | struct xdr_stream xdr; |
| 1858 | struct compound_hdr hdr = { |
Trond Myklebust | 4f9838c | 2005-10-27 22:12:44 -0400 | [diff] [blame] | 1859 | .nops = 3, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1860 | }; |
| 1861 | int status; |
| 1862 | |
| 1863 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1864 | encode_compound_hdr(&xdr, &hdr); |
| 1865 | status = encode_putfh(&xdr, args->fh); |
| 1866 | if (status) |
| 1867 | goto out; |
| 1868 | status = encode_write(&xdr, args); |
Trond Myklebust | 4f9838c | 2005-10-27 22:12:44 -0400 | [diff] [blame] | 1869 | if (status) |
| 1870 | goto out; |
| 1871 | status = encode_getfattr(&xdr, args->bitmask); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1872 | out: |
| 1873 | return status; |
| 1874 | } |
| 1875 | |
| 1876 | /* |
| 1877 | * a COMMIT request |
| 1878 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1879 | static int nfs4_xdr_enc_commit(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1880 | { |
| 1881 | struct xdr_stream xdr; |
| 1882 | struct compound_hdr hdr = { |
Trond Myklebust | 4f9838c | 2005-10-27 22:12:44 -0400 | [diff] [blame] | 1883 | .nops = 3, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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) |
| 1891 | goto out; |
| 1892 | status = encode_commit(&xdr, args); |
Trond Myklebust | 4f9838c | 2005-10-27 22:12:44 -0400 | [diff] [blame] | 1893 | if (status) |
| 1894 | goto out; |
| 1895 | status = encode_getfattr(&xdr, args->bitmask); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1896 | out: |
| 1897 | return status; |
| 1898 | } |
| 1899 | |
| 1900 | /* |
| 1901 | * FSINFO request |
| 1902 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1903 | static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs4_fsinfo_arg *args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1904 | { |
| 1905 | struct xdr_stream xdr; |
| 1906 | struct compound_hdr hdr = { |
| 1907 | .nops = 2, |
| 1908 | }; |
| 1909 | int status; |
| 1910 | |
| 1911 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1912 | encode_compound_hdr(&xdr, &hdr); |
| 1913 | status = encode_putfh(&xdr, args->fh); |
| 1914 | if (!status) |
| 1915 | status = encode_fsinfo(&xdr, args->bitmask); |
| 1916 | return status; |
| 1917 | } |
| 1918 | |
| 1919 | /* |
| 1920 | * a PATHCONF request |
| 1921 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1922 | static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, __be32 *p, const struct nfs4_pathconf_arg *args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1923 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1924 | struct xdr_stream xdr; |
| 1925 | struct compound_hdr hdr = { |
| 1926 | .nops = 2, |
| 1927 | }; |
| 1928 | int status; |
| 1929 | |
| 1930 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1931 | encode_compound_hdr(&xdr, &hdr); |
| 1932 | status = encode_putfh(&xdr, args->fh); |
| 1933 | if (!status) |
| 1934 | status = encode_getattr_one(&xdr, |
| 1935 | args->bitmask[0] & nfs4_pathconf_bitmap[0]); |
| 1936 | return status; |
| 1937 | } |
| 1938 | |
| 1939 | /* |
| 1940 | * a STATFS request |
| 1941 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1942 | static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, __be32 *p, const struct nfs4_statfs_arg *args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1943 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1944 | struct xdr_stream xdr; |
| 1945 | struct compound_hdr hdr = { |
| 1946 | .nops = 2, |
| 1947 | }; |
| 1948 | int status; |
| 1949 | |
| 1950 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1951 | encode_compound_hdr(&xdr, &hdr); |
| 1952 | status = encode_putfh(&xdr, args->fh); |
| 1953 | if (status == 0) |
| 1954 | status = encode_getattr_two(&xdr, |
| 1955 | args->bitmask[0] & nfs4_statfs_bitmap[0], |
| 1956 | args->bitmask[1] & nfs4_statfs_bitmap[1]); |
| 1957 | return status; |
| 1958 | } |
| 1959 | |
| 1960 | /* |
| 1961 | * GETATTR_BITMAP request |
| 1962 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1963 | static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, __be32 *p, const struct nfs_fh *fhandle) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1964 | { |
| 1965 | struct xdr_stream xdr; |
| 1966 | struct compound_hdr hdr = { |
| 1967 | .nops = 2, |
| 1968 | }; |
| 1969 | int status; |
| 1970 | |
| 1971 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1972 | encode_compound_hdr(&xdr, &hdr); |
| 1973 | status = encode_putfh(&xdr, fhandle); |
| 1974 | if (status == 0) |
| 1975 | status = encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS| |
| 1976 | FATTR4_WORD0_LINK_SUPPORT| |
| 1977 | FATTR4_WORD0_SYMLINK_SUPPORT| |
| 1978 | FATTR4_WORD0_ACLSUPPORT); |
| 1979 | return status; |
| 1980 | } |
| 1981 | |
| 1982 | /* |
| 1983 | * a RENEW request |
| 1984 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 1985 | static int nfs4_xdr_enc_renew(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1986 | { |
| 1987 | struct xdr_stream xdr; |
| 1988 | struct compound_hdr hdr = { |
| 1989 | .nops = 1, |
| 1990 | }; |
| 1991 | |
| 1992 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 1993 | encode_compound_hdr(&xdr, &hdr); |
| 1994 | return encode_renew(&xdr, clp); |
| 1995 | } |
| 1996 | |
| 1997 | /* |
| 1998 | * a SETCLIENTID request |
| 1999 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2000 | static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid *sc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2001 | { |
| 2002 | struct xdr_stream xdr; |
| 2003 | struct compound_hdr hdr = { |
| 2004 | .nops = 1, |
| 2005 | }; |
| 2006 | |
| 2007 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 2008 | encode_compound_hdr(&xdr, &hdr); |
| 2009 | return encode_setclientid(&xdr, sc); |
| 2010 | } |
| 2011 | |
| 2012 | /* |
| 2013 | * a SETCLIENTID_CONFIRM request |
| 2014 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2015 | static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2016 | { |
| 2017 | struct xdr_stream xdr; |
| 2018 | struct compound_hdr hdr = { |
| 2019 | .nops = 3, |
| 2020 | }; |
| 2021 | const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; |
| 2022 | int status; |
| 2023 | |
| 2024 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 2025 | encode_compound_hdr(&xdr, &hdr); |
| 2026 | status = encode_setclientid_confirm(&xdr, clp); |
| 2027 | if (!status) |
| 2028 | status = encode_putrootfh(&xdr); |
| 2029 | if (!status) |
| 2030 | status = encode_fsinfo(&xdr, lease_bitmap); |
| 2031 | return status; |
| 2032 | } |
| 2033 | |
| 2034 | /* |
| 2035 | * DELEGRETURN request |
| 2036 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2037 | static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, __be32 *p, const struct nfs4_delegreturnargs *args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2038 | { |
| 2039 | struct xdr_stream xdr; |
| 2040 | struct compound_hdr hdr = { |
Trond Myklebust | fa178f2 | 2006-01-03 09:55:38 +0100 | [diff] [blame] | 2041 | .nops = 3, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2042 | }; |
| 2043 | int status; |
| 2044 | |
| 2045 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 2046 | encode_compound_hdr(&xdr, &hdr); |
Trond Myklebust | fa178f2 | 2006-01-03 09:55:38 +0100 | [diff] [blame] | 2047 | status = encode_putfh(&xdr, args->fhandle); |
| 2048 | if (status != 0) |
| 2049 | goto out; |
| 2050 | status = encode_delegreturn(&xdr, args->stateid); |
| 2051 | if (status != 0) |
| 2052 | goto out; |
| 2053 | status = encode_getfattr(&xdr, args->bitmask); |
| 2054 | out: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2055 | return status; |
| 2056 | } |
| 2057 | |
| 2058 | /* |
Trond Myklebust | 683b57b | 2006-06-09 09:34:22 -0400 | [diff] [blame] | 2059 | * Encode FS_LOCATIONS request |
| 2060 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2061 | static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations_arg *args) |
Trond Myklebust | 683b57b | 2006-06-09 09:34:22 -0400 | [diff] [blame] | 2062 | { |
| 2063 | struct xdr_stream xdr; |
| 2064 | struct compound_hdr hdr = { |
| 2065 | .nops = 3, |
| 2066 | }; |
Trond Myklebust | 1be27f3 | 2007-06-27 14:29:04 -0400 | [diff] [blame] | 2067 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
Trond Myklebust | 683b57b | 2006-06-09 09:34:22 -0400 | [diff] [blame] | 2068 | int replen; |
| 2069 | int status; |
| 2070 | |
| 2071 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 2072 | encode_compound_hdr(&xdr, &hdr); |
| 2073 | if ((status = encode_putfh(&xdr, args->dir_fh)) != 0) |
| 2074 | goto out; |
| 2075 | if ((status = encode_lookup(&xdr, args->name)) != 0) |
| 2076 | goto out; |
Manoj Naik | 830b8e3 | 2006-06-09 09:34:25 -0400 | [diff] [blame] | 2077 | if ((status = encode_fs_locations(&xdr, args->bitmask)) != 0) |
Trond Myklebust | 683b57b | 2006-06-09 09:34:22 -0400 | [diff] [blame] | 2078 | goto out; |
| 2079 | /* set up reply |
Manoj Naik | 830b8e3 | 2006-06-09 09:34:25 -0400 | [diff] [blame] | 2080 | * toplevel_status + OP_PUTFH + status |
Trond Myklebust | 683b57b | 2006-06-09 09:34:22 -0400 | [diff] [blame] | 2081 | * + OP_LOOKUP + status + OP_GETATTR + status = 7 |
| 2082 | */ |
| 2083 | replen = (RPC_REPHDRSIZE + auth->au_rslack + 7) << 2; |
| 2084 | xdr_inline_pages(&req->rq_rcv_buf, replen, &args->page, |
| 2085 | 0, PAGE_SIZE); |
| 2086 | out: |
| 2087 | return status; |
| 2088 | } |
| 2089 | |
| 2090 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2091 | * START OF "GENERIC" DECODE ROUTINES. |
| 2092 | * These may look a little ugly since they are imported from a "generic" |
| 2093 | * set of XDR encode/decode routines which are intended to be shared by |
| 2094 | * all of our NFSv4 implementations (OpenBSD, MacOS X...). |
| 2095 | * |
| 2096 | * If the pain of reading these is too great, it should be a straightforward |
| 2097 | * task to translate them into Linux-specific versions which are more |
| 2098 | * consistent with the style used in NFSv2/v3... |
| 2099 | */ |
| 2100 | #define READ32(x) (x) = ntohl(*p++) |
| 2101 | #define READ64(x) do { \ |
| 2102 | (x) = (u64)ntohl(*p++) << 32; \ |
| 2103 | (x) |= ntohl(*p++); \ |
| 2104 | } while (0) |
| 2105 | #define READTIME(x) do { \ |
| 2106 | p++; \ |
| 2107 | (x.tv_sec) = ntohl(*p++); \ |
| 2108 | (x.tv_nsec) = ntohl(*p++); \ |
| 2109 | } while (0) |
| 2110 | #define COPYMEM(x,nbytes) do { \ |
| 2111 | memcpy((x), p, nbytes); \ |
| 2112 | p += XDR_QUADLEN(nbytes); \ |
| 2113 | } while (0) |
| 2114 | |
| 2115 | #define READ_BUF(nbytes) do { \ |
| 2116 | p = xdr_inline_decode(xdr, nbytes); \ |
Chuck Lever | e4cc6ee | 2007-05-08 18:23:28 -0400 | [diff] [blame] | 2117 | if (unlikely(!p)) { \ |
| 2118 | printk(KERN_INFO "%s: prematurely hit end of receive" \ |
| 2119 | " buffer\n", __FUNCTION__); \ |
| 2120 | printk(KERN_INFO "%s: xdr->p=%p, bytes=%u, xdr->end=%p\n", \ |
| 2121 | __FUNCTION__, xdr->p, nbytes, xdr->end); \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2122 | return -EIO; \ |
| 2123 | } \ |
| 2124 | } while (0) |
| 2125 | |
Trond Myklebust | 683b57b | 2006-06-09 09:34:22 -0400 | [diff] [blame] | 2126 | static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2127 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2128 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2129 | |
| 2130 | READ_BUF(4); |
| 2131 | READ32(*len); |
| 2132 | READ_BUF(*len); |
| 2133 | *string = (char *)p; |
| 2134 | return 0; |
| 2135 | } |
| 2136 | |
| 2137 | static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) |
| 2138 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2139 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2140 | |
| 2141 | READ_BUF(8); |
| 2142 | READ32(hdr->status); |
| 2143 | READ32(hdr->taglen); |
| 2144 | |
| 2145 | READ_BUF(hdr->taglen + 4); |
| 2146 | hdr->tag = (char *)p; |
| 2147 | p += XDR_QUADLEN(hdr->taglen); |
| 2148 | READ32(hdr->nops); |
| 2149 | return 0; |
| 2150 | } |
| 2151 | |
| 2152 | static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) |
| 2153 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2154 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2155 | uint32_t opnum; |
| 2156 | int32_t nfserr; |
| 2157 | |
| 2158 | READ_BUF(8); |
| 2159 | READ32(opnum); |
| 2160 | if (opnum != expected) { |
| 2161 | printk(KERN_NOTICE |
| 2162 | "nfs4_decode_op_hdr: Server returned operation" |
| 2163 | " %d but we issued a request for %d\n", |
| 2164 | opnum, expected); |
| 2165 | return -EIO; |
| 2166 | } |
| 2167 | READ32(nfserr); |
| 2168 | if (nfserr != NFS_OK) |
David Howells | 0a8ea43 | 2006-08-22 20:06:08 -0400 | [diff] [blame] | 2169 | return -nfs4_stat_to_errno(nfserr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2170 | return 0; |
| 2171 | } |
| 2172 | |
| 2173 | /* Dummy routine */ |
David Howells | adfa6f9 | 2006-08-22 20:06:08 -0400 | [diff] [blame] | 2174 | static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2175 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2176 | __be32 *p; |
Trond Myklebust | 683b57b | 2006-06-09 09:34:22 -0400 | [diff] [blame] | 2177 | unsigned int strlen; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2178 | char *str; |
| 2179 | |
| 2180 | READ_BUF(12); |
| 2181 | return decode_opaque_inline(xdr, &strlen, &str); |
| 2182 | } |
| 2183 | |
| 2184 | static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) |
| 2185 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2186 | uint32_t bmlen; |
| 2187 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2188 | |
| 2189 | READ_BUF(4); |
| 2190 | READ32(bmlen); |
| 2191 | |
| 2192 | bitmap[0] = bitmap[1] = 0; |
| 2193 | READ_BUF((bmlen << 2)); |
| 2194 | if (bmlen > 0) { |
| 2195 | READ32(bitmap[0]); |
| 2196 | if (bmlen > 1) |
| 2197 | READ32(bitmap[1]); |
| 2198 | } |
| 2199 | return 0; |
| 2200 | } |
| 2201 | |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2202 | static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2203 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2204 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2205 | |
| 2206 | READ_BUF(4); |
| 2207 | READ32(*attrlen); |
| 2208 | *savep = xdr->p; |
| 2209 | return 0; |
| 2210 | } |
| 2211 | |
| 2212 | static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) |
| 2213 | { |
| 2214 | if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { |
| 2215 | decode_attr_bitmap(xdr, bitmask); |
| 2216 | bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; |
| 2217 | } else |
| 2218 | bitmask[0] = bitmask[1] = 0; |
| 2219 | dprintk("%s: bitmask=0x%x%x\n", __FUNCTION__, bitmask[0], bitmask[1]); |
| 2220 | return 0; |
| 2221 | } |
| 2222 | |
| 2223 | static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) |
| 2224 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2225 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2226 | |
| 2227 | *type = 0; |
| 2228 | if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) |
| 2229 | return -EIO; |
| 2230 | if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { |
| 2231 | READ_BUF(4); |
| 2232 | READ32(*type); |
| 2233 | if (*type < NF4REG || *type > NF4NAMEDATTR) { |
| 2234 | dprintk("%s: bad type %d\n", __FUNCTION__, *type); |
| 2235 | return -EIO; |
| 2236 | } |
| 2237 | bitmap[0] &= ~FATTR4_WORD0_TYPE; |
| 2238 | } |
| 2239 | dprintk("%s: type=0%o\n", __FUNCTION__, nfs_type2fmt[*type].nfs2type); |
| 2240 | return 0; |
| 2241 | } |
| 2242 | |
| 2243 | static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) |
| 2244 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2245 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2246 | |
| 2247 | *change = 0; |
| 2248 | if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) |
| 2249 | return -EIO; |
| 2250 | if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { |
| 2251 | READ_BUF(8); |
| 2252 | READ64(*change); |
| 2253 | bitmap[0] &= ~FATTR4_WORD0_CHANGE; |
| 2254 | } |
| 2255 | dprintk("%s: change attribute=%Lu\n", __FUNCTION__, |
| 2256 | (unsigned long long)*change); |
| 2257 | return 0; |
| 2258 | } |
| 2259 | |
| 2260 | static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) |
| 2261 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2262 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2263 | |
| 2264 | *size = 0; |
| 2265 | if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) |
| 2266 | return -EIO; |
| 2267 | if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { |
| 2268 | READ_BUF(8); |
| 2269 | READ64(*size); |
| 2270 | bitmap[0] &= ~FATTR4_WORD0_SIZE; |
| 2271 | } |
| 2272 | dprintk("%s: file size=%Lu\n", __FUNCTION__, (unsigned long long)*size); |
| 2273 | return 0; |
| 2274 | } |
| 2275 | |
| 2276 | static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) |
| 2277 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2278 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2279 | |
| 2280 | *res = 0; |
| 2281 | if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) |
| 2282 | return -EIO; |
| 2283 | if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { |
| 2284 | READ_BUF(4); |
| 2285 | READ32(*res); |
| 2286 | bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; |
| 2287 | } |
| 2288 | dprintk("%s: link support=%s\n", __FUNCTION__, *res == 0 ? "false" : "true"); |
| 2289 | return 0; |
| 2290 | } |
| 2291 | |
| 2292 | static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) |
| 2293 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2294 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2295 | |
| 2296 | *res = 0; |
| 2297 | if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) |
| 2298 | return -EIO; |
| 2299 | if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { |
| 2300 | READ_BUF(4); |
| 2301 | READ32(*res); |
| 2302 | bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; |
| 2303 | } |
| 2304 | dprintk("%s: symlink support=%s\n", __FUNCTION__, *res == 0 ? "false" : "true"); |
| 2305 | return 0; |
| 2306 | } |
| 2307 | |
Trond Myklebust | 8b4bdcf | 2006-06-09 09:34:19 -0400 | [diff] [blame] | 2308 | static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2309 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2310 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2311 | |
| 2312 | fsid->major = 0; |
| 2313 | fsid->minor = 0; |
| 2314 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) |
| 2315 | return -EIO; |
| 2316 | if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { |
| 2317 | READ_BUF(16); |
| 2318 | READ64(fsid->major); |
| 2319 | READ64(fsid->minor); |
| 2320 | bitmap[0] &= ~FATTR4_WORD0_FSID; |
| 2321 | } |
| 2322 | dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __FUNCTION__, |
| 2323 | (unsigned long long)fsid->major, |
| 2324 | (unsigned long long)fsid->minor); |
| 2325 | return 0; |
| 2326 | } |
| 2327 | |
| 2328 | static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) |
| 2329 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2330 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2331 | |
| 2332 | *res = 60; |
| 2333 | if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) |
| 2334 | return -EIO; |
| 2335 | if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { |
| 2336 | READ_BUF(4); |
| 2337 | READ32(*res); |
| 2338 | bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; |
| 2339 | } |
| 2340 | dprintk("%s: file size=%u\n", __FUNCTION__, (unsigned int)*res); |
| 2341 | return 0; |
| 2342 | } |
| 2343 | |
| 2344 | static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) |
| 2345 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2346 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2347 | |
| 2348 | *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; |
| 2349 | if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) |
| 2350 | return -EIO; |
| 2351 | if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { |
| 2352 | READ_BUF(4); |
| 2353 | READ32(*res); |
| 2354 | bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; |
| 2355 | } |
| 2356 | dprintk("%s: ACLs supported=%u\n", __FUNCTION__, (unsigned int)*res); |
| 2357 | return 0; |
| 2358 | } |
| 2359 | |
| 2360 | static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) |
| 2361 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2362 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2363 | |
| 2364 | *fileid = 0; |
| 2365 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) |
| 2366 | return -EIO; |
| 2367 | if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { |
| 2368 | READ_BUF(8); |
| 2369 | READ64(*fileid); |
| 2370 | bitmap[0] &= ~FATTR4_WORD0_FILEID; |
| 2371 | } |
| 2372 | dprintk("%s: fileid=%Lu\n", __FUNCTION__, (unsigned long long)*fileid); |
| 2373 | return 0; |
| 2374 | } |
| 2375 | |
Manoj Naik | 99baf62 | 2006-06-09 09:34:24 -0400 | [diff] [blame] | 2376 | static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) |
| 2377 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2378 | __be32 *p; |
Manoj Naik | 99baf62 | 2006-06-09 09:34:24 -0400 | [diff] [blame] | 2379 | |
| 2380 | *fileid = 0; |
| 2381 | if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) |
| 2382 | return -EIO; |
| 2383 | if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { |
| 2384 | READ_BUF(8); |
| 2385 | READ64(*fileid); |
| 2386 | bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; |
| 2387 | } |
| 2388 | dprintk("%s: fileid=%Lu\n", __FUNCTION__, (unsigned long long)*fileid); |
| 2389 | return 0; |
| 2390 | } |
| 2391 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2392 | static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
| 2393 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2394 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2395 | int status = 0; |
| 2396 | |
| 2397 | *res = 0; |
| 2398 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) |
| 2399 | return -EIO; |
| 2400 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { |
| 2401 | READ_BUF(8); |
| 2402 | READ64(*res); |
| 2403 | bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; |
| 2404 | } |
| 2405 | dprintk("%s: files avail=%Lu\n", __FUNCTION__, (unsigned long long)*res); |
| 2406 | return status; |
| 2407 | } |
| 2408 | |
| 2409 | static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
| 2410 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2411 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2412 | int status = 0; |
| 2413 | |
| 2414 | *res = 0; |
| 2415 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) |
| 2416 | return -EIO; |
| 2417 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { |
| 2418 | READ_BUF(8); |
| 2419 | READ64(*res); |
| 2420 | bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; |
| 2421 | } |
| 2422 | dprintk("%s: files free=%Lu\n", __FUNCTION__, (unsigned long long)*res); |
| 2423 | return status; |
| 2424 | } |
| 2425 | |
| 2426 | static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
| 2427 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2428 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2429 | int status = 0; |
| 2430 | |
| 2431 | *res = 0; |
| 2432 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) |
| 2433 | return -EIO; |
| 2434 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { |
| 2435 | READ_BUF(8); |
| 2436 | READ64(*res); |
| 2437 | bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; |
| 2438 | } |
| 2439 | dprintk("%s: files total=%Lu\n", __FUNCTION__, (unsigned long long)*res); |
| 2440 | return status; |
| 2441 | } |
| 2442 | |
Manoj Naik | 7aaa0b3 | 2006-06-09 09:34:23 -0400 | [diff] [blame] | 2443 | static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) |
| 2444 | { |
| 2445 | int n; |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2446 | __be32 *p; |
Manoj Naik | 7aaa0b3 | 2006-06-09 09:34:23 -0400 | [diff] [blame] | 2447 | int status = 0; |
| 2448 | |
| 2449 | READ_BUF(4); |
| 2450 | READ32(n); |
Andy Adamson | 33a43f2 | 2006-06-09 09:34:30 -0400 | [diff] [blame] | 2451 | if (n < 0) |
Manoj Naik | 7aaa0b3 | 2006-06-09 09:34:23 -0400 | [diff] [blame] | 2452 | goto out_eio; |
Andy Adamson | 33a43f2 | 2006-06-09 09:34:30 -0400 | [diff] [blame] | 2453 | if (n == 0) |
| 2454 | goto root_path; |
Manoj Naik | 7aaa0b3 | 2006-06-09 09:34:23 -0400 | [diff] [blame] | 2455 | dprintk("path "); |
| 2456 | path->ncomponents = 0; |
| 2457 | while (path->ncomponents < n) { |
| 2458 | struct nfs4_string *component = &path->components[path->ncomponents]; |
| 2459 | status = decode_opaque_inline(xdr, &component->len, &component->data); |
| 2460 | if (unlikely(status != 0)) |
| 2461 | goto out_eio; |
| 2462 | if (path->ncomponents != n) |
| 2463 | dprintk("/"); |
| 2464 | dprintk("%s", component->data); |
| 2465 | if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) |
| 2466 | path->ncomponents++; |
| 2467 | else { |
| 2468 | dprintk("cannot parse %d components in path\n", n); |
| 2469 | goto out_eio; |
| 2470 | } |
| 2471 | } |
| 2472 | out: |
| 2473 | dprintk("\n"); |
| 2474 | return status; |
Andy Adamson | 33a43f2 | 2006-06-09 09:34:30 -0400 | [diff] [blame] | 2475 | root_path: |
| 2476 | /* a root pathname is sent as a zero component4 */ |
| 2477 | path->ncomponents = 1; |
| 2478 | path->components[0].len=0; |
| 2479 | path->components[0].data=NULL; |
| 2480 | dprintk("path /\n"); |
| 2481 | goto out; |
Manoj Naik | 7aaa0b3 | 2006-06-09 09:34:23 -0400 | [diff] [blame] | 2482 | out_eio: |
| 2483 | dprintk(" status %d", status); |
| 2484 | status = -EIO; |
| 2485 | goto out; |
| 2486 | } |
| 2487 | |
| 2488 | static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) |
Trond Myklebust | 683b57b | 2006-06-09 09:34:22 -0400 | [diff] [blame] | 2489 | { |
| 2490 | int n; |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2491 | __be32 *p; |
Trond Myklebust | 683b57b | 2006-06-09 09:34:22 -0400 | [diff] [blame] | 2492 | int status = -EIO; |
| 2493 | |
| 2494 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) |
| 2495 | goto out; |
| 2496 | status = 0; |
| 2497 | if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) |
| 2498 | goto out; |
Manoj Naik | 7aaa0b3 | 2006-06-09 09:34:23 -0400 | [diff] [blame] | 2499 | dprintk("%s: fsroot ", __FUNCTION__); |
| 2500 | status = decode_pathname(xdr, &res->fs_path); |
Trond Myklebust | 683b57b | 2006-06-09 09:34:22 -0400 | [diff] [blame] | 2501 | if (unlikely(status != 0)) |
| 2502 | goto out; |
| 2503 | READ_BUF(4); |
| 2504 | READ32(n); |
| 2505 | if (n <= 0) |
| 2506 | goto out_eio; |
| 2507 | res->nlocations = 0; |
| 2508 | while (res->nlocations < n) { |
Manoj Naik | 7aaa0b3 | 2006-06-09 09:34:23 -0400 | [diff] [blame] | 2509 | int m; |
| 2510 | struct nfs4_fs_location *loc = &res->locations[res->nlocations]; |
Trond Myklebust | 683b57b | 2006-06-09 09:34:22 -0400 | [diff] [blame] | 2511 | |
Manoj Naik | 7aaa0b3 | 2006-06-09 09:34:23 -0400 | [diff] [blame] | 2512 | READ_BUF(4); |
| 2513 | READ32(m); |
| 2514 | if (m <= 0) |
| 2515 | goto out_eio; |
| 2516 | |
| 2517 | loc->nservers = 0; |
| 2518 | dprintk("%s: servers ", __FUNCTION__); |
| 2519 | while (loc->nservers < m) { |
| 2520 | struct nfs4_string *server = &loc->servers[loc->nservers]; |
| 2521 | status = decode_opaque_inline(xdr, &server->len, &server->data); |
| 2522 | if (unlikely(status != 0)) |
| 2523 | goto out_eio; |
| 2524 | dprintk("%s ", server->data); |
| 2525 | if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) |
| 2526 | loc->nservers++; |
| 2527 | else { |
| 2528 | int i; |
| 2529 | dprintk("%s: using first %d of %d servers returned for location %d\n", __FUNCTION__, NFS4_FS_LOCATION_MAXSERVERS, m, res->nlocations); |
| 2530 | for (i = loc->nservers; i < m; i++) { |
Trond Myklebust | 2e42c3e | 2007-05-14 17:20:41 -0400 | [diff] [blame] | 2531 | unsigned int len; |
Manoj Naik | 7aaa0b3 | 2006-06-09 09:34:23 -0400 | [diff] [blame] | 2532 | char *data; |
| 2533 | status = decode_opaque_inline(xdr, &len, &data); |
| 2534 | if (unlikely(status != 0)) |
| 2535 | goto out_eio; |
| 2536 | } |
| 2537 | } |
| 2538 | } |
| 2539 | status = decode_pathname(xdr, &loc->rootpath); |
Trond Myklebust | 683b57b | 2006-06-09 09:34:22 -0400 | [diff] [blame] | 2540 | if (unlikely(status != 0)) |
| 2541 | goto out_eio; |
Manoj Naik | 7aaa0b3 | 2006-06-09 09:34:23 -0400 | [diff] [blame] | 2542 | if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) |
Trond Myklebust | 683b57b | 2006-06-09 09:34:22 -0400 | [diff] [blame] | 2543 | res->nlocations++; |
| 2544 | } |
| 2545 | out: |
| 2546 | dprintk("%s: fs_locations done, error = %d\n", __FUNCTION__, status); |
| 2547 | return status; |
| 2548 | out_eio: |
| 2549 | status = -EIO; |
| 2550 | goto out; |
| 2551 | } |
| 2552 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2553 | static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
| 2554 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2555 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2556 | int status = 0; |
| 2557 | |
| 2558 | *res = 0; |
| 2559 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) |
| 2560 | return -EIO; |
| 2561 | if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { |
| 2562 | READ_BUF(8); |
| 2563 | READ64(*res); |
| 2564 | bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; |
| 2565 | } |
| 2566 | dprintk("%s: maxfilesize=%Lu\n", __FUNCTION__, (unsigned long long)*res); |
| 2567 | return status; |
| 2568 | } |
| 2569 | |
| 2570 | static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) |
| 2571 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2572 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2573 | int status = 0; |
| 2574 | |
| 2575 | *maxlink = 1; |
| 2576 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) |
| 2577 | return -EIO; |
| 2578 | if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { |
| 2579 | READ_BUF(4); |
| 2580 | READ32(*maxlink); |
| 2581 | bitmap[0] &= ~FATTR4_WORD0_MAXLINK; |
| 2582 | } |
| 2583 | dprintk("%s: maxlink=%u\n", __FUNCTION__, *maxlink); |
| 2584 | return status; |
| 2585 | } |
| 2586 | |
| 2587 | static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) |
| 2588 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2589 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2590 | int status = 0; |
| 2591 | |
| 2592 | *maxname = 1024; |
| 2593 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) |
| 2594 | return -EIO; |
| 2595 | if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { |
| 2596 | READ_BUF(4); |
| 2597 | READ32(*maxname); |
| 2598 | bitmap[0] &= ~FATTR4_WORD0_MAXNAME; |
| 2599 | } |
| 2600 | dprintk("%s: maxname=%u\n", __FUNCTION__, *maxname); |
| 2601 | return status; |
| 2602 | } |
| 2603 | |
| 2604 | static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) |
| 2605 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2606 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2607 | int status = 0; |
| 2608 | |
| 2609 | *res = 1024; |
| 2610 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) |
| 2611 | return -EIO; |
| 2612 | if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { |
| 2613 | uint64_t maxread; |
| 2614 | READ_BUF(8); |
| 2615 | READ64(maxread); |
| 2616 | if (maxread > 0x7FFFFFFF) |
| 2617 | maxread = 0x7FFFFFFF; |
| 2618 | *res = (uint32_t)maxread; |
| 2619 | bitmap[0] &= ~FATTR4_WORD0_MAXREAD; |
| 2620 | } |
| 2621 | dprintk("%s: maxread=%lu\n", __FUNCTION__, (unsigned long)*res); |
| 2622 | return status; |
| 2623 | } |
| 2624 | |
| 2625 | static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) |
| 2626 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2627 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2628 | int status = 0; |
| 2629 | |
| 2630 | *res = 1024; |
| 2631 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) |
| 2632 | return -EIO; |
| 2633 | if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { |
| 2634 | uint64_t maxwrite; |
| 2635 | READ_BUF(8); |
| 2636 | READ64(maxwrite); |
| 2637 | if (maxwrite > 0x7FFFFFFF) |
| 2638 | maxwrite = 0x7FFFFFFF; |
| 2639 | *res = (uint32_t)maxwrite; |
| 2640 | bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; |
| 2641 | } |
| 2642 | dprintk("%s: maxwrite=%lu\n", __FUNCTION__, (unsigned long)*res); |
| 2643 | return status; |
| 2644 | } |
| 2645 | |
| 2646 | static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *mode) |
| 2647 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2648 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2649 | |
| 2650 | *mode = 0; |
| 2651 | if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) |
| 2652 | return -EIO; |
| 2653 | if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { |
| 2654 | READ_BUF(4); |
| 2655 | READ32(*mode); |
| 2656 | *mode &= ~S_IFMT; |
| 2657 | bitmap[1] &= ~FATTR4_WORD1_MODE; |
| 2658 | } |
| 2659 | dprintk("%s: file mode=0%o\n", __FUNCTION__, (unsigned int)*mode); |
| 2660 | return 0; |
| 2661 | } |
| 2662 | |
| 2663 | static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) |
| 2664 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2665 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2666 | |
| 2667 | *nlink = 1; |
| 2668 | if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) |
| 2669 | return -EIO; |
| 2670 | if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { |
| 2671 | READ_BUF(4); |
| 2672 | READ32(*nlink); |
| 2673 | bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; |
| 2674 | } |
| 2675 | dprintk("%s: nlink=%u\n", __FUNCTION__, (unsigned int)*nlink); |
| 2676 | return 0; |
| 2677 | } |
| 2678 | |
Trond Myklebust | 2e42c3e | 2007-05-14 17:20:41 -0400 | [diff] [blame] | 2679 | static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *uid) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2680 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2681 | uint32_t len; |
| 2682 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2683 | |
| 2684 | *uid = -2; |
| 2685 | if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) |
| 2686 | return -EIO; |
| 2687 | if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { |
| 2688 | READ_BUF(4); |
| 2689 | READ32(len); |
| 2690 | READ_BUF(len); |
| 2691 | if (len < XDR_MAX_NETOBJ) { |
| 2692 | if (nfs_map_name_to_uid(clp, (char *)p, len, uid) != 0) |
| 2693 | dprintk("%s: nfs_map_name_to_uid failed!\n", |
| 2694 | __FUNCTION__); |
| 2695 | } else |
| 2696 | printk(KERN_WARNING "%s: name too long (%u)!\n", |
| 2697 | __FUNCTION__, len); |
| 2698 | bitmap[1] &= ~FATTR4_WORD1_OWNER; |
| 2699 | } |
| 2700 | dprintk("%s: uid=%d\n", __FUNCTION__, (int)*uid); |
| 2701 | return 0; |
| 2702 | } |
| 2703 | |
Trond Myklebust | 2e42c3e | 2007-05-14 17:20:41 -0400 | [diff] [blame] | 2704 | static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *gid) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2705 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2706 | uint32_t len; |
| 2707 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2708 | |
| 2709 | *gid = -2; |
| 2710 | if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) |
| 2711 | return -EIO; |
| 2712 | if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { |
| 2713 | READ_BUF(4); |
| 2714 | READ32(len); |
| 2715 | READ_BUF(len); |
| 2716 | if (len < XDR_MAX_NETOBJ) { |
| 2717 | if (nfs_map_group_to_gid(clp, (char *)p, len, gid) != 0) |
| 2718 | dprintk("%s: nfs_map_group_to_gid failed!\n", |
| 2719 | __FUNCTION__); |
| 2720 | } else |
| 2721 | printk(KERN_WARNING "%s: name too long (%u)!\n", |
| 2722 | __FUNCTION__, len); |
| 2723 | bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; |
| 2724 | } |
| 2725 | dprintk("%s: gid=%d\n", __FUNCTION__, (int)*gid); |
| 2726 | return 0; |
| 2727 | } |
| 2728 | |
| 2729 | static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) |
| 2730 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2731 | uint32_t major = 0, minor = 0; |
| 2732 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2733 | |
| 2734 | *rdev = MKDEV(0,0); |
| 2735 | if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) |
| 2736 | return -EIO; |
| 2737 | if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { |
| 2738 | dev_t tmp; |
| 2739 | |
| 2740 | READ_BUF(8); |
| 2741 | READ32(major); |
| 2742 | READ32(minor); |
| 2743 | tmp = MKDEV(major, minor); |
| 2744 | if (MAJOR(tmp) == major && MINOR(tmp) == minor) |
| 2745 | *rdev = tmp; |
| 2746 | bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; |
| 2747 | } |
| 2748 | dprintk("%s: rdev=(0x%x:0x%x)\n", __FUNCTION__, major, minor); |
| 2749 | return 0; |
| 2750 | } |
| 2751 | |
| 2752 | static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
| 2753 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2754 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2755 | int status = 0; |
| 2756 | |
| 2757 | *res = 0; |
| 2758 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) |
| 2759 | return -EIO; |
| 2760 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { |
| 2761 | READ_BUF(8); |
| 2762 | READ64(*res); |
| 2763 | bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; |
| 2764 | } |
| 2765 | dprintk("%s: space avail=%Lu\n", __FUNCTION__, (unsigned long long)*res); |
| 2766 | return status; |
| 2767 | } |
| 2768 | |
| 2769 | static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
| 2770 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2771 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2772 | int status = 0; |
| 2773 | |
| 2774 | *res = 0; |
| 2775 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) |
| 2776 | return -EIO; |
| 2777 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { |
| 2778 | READ_BUF(8); |
| 2779 | READ64(*res); |
| 2780 | bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; |
| 2781 | } |
| 2782 | dprintk("%s: space free=%Lu\n", __FUNCTION__, (unsigned long long)*res); |
| 2783 | return status; |
| 2784 | } |
| 2785 | |
| 2786 | static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
| 2787 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2788 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2789 | int status = 0; |
| 2790 | |
| 2791 | *res = 0; |
| 2792 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) |
| 2793 | return -EIO; |
| 2794 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { |
| 2795 | READ_BUF(8); |
| 2796 | READ64(*res); |
| 2797 | bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; |
| 2798 | } |
| 2799 | dprintk("%s: space total=%Lu\n", __FUNCTION__, (unsigned long long)*res); |
| 2800 | return status; |
| 2801 | } |
| 2802 | |
| 2803 | static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) |
| 2804 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2805 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2806 | |
| 2807 | *used = 0; |
| 2808 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) |
| 2809 | return -EIO; |
| 2810 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { |
| 2811 | READ_BUF(8); |
| 2812 | READ64(*used); |
| 2813 | bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; |
| 2814 | } |
| 2815 | dprintk("%s: space used=%Lu\n", __FUNCTION__, |
| 2816 | (unsigned long long)*used); |
| 2817 | return 0; |
| 2818 | } |
| 2819 | |
| 2820 | static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) |
| 2821 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2822 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2823 | uint64_t sec; |
| 2824 | uint32_t nsec; |
| 2825 | |
| 2826 | READ_BUF(12); |
| 2827 | READ64(sec); |
| 2828 | READ32(nsec); |
| 2829 | time->tv_sec = (time_t)sec; |
| 2830 | time->tv_nsec = (long)nsec; |
| 2831 | return 0; |
| 2832 | } |
| 2833 | |
| 2834 | static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) |
| 2835 | { |
| 2836 | int status = 0; |
| 2837 | |
| 2838 | time->tv_sec = 0; |
| 2839 | time->tv_nsec = 0; |
| 2840 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) |
| 2841 | return -EIO; |
| 2842 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { |
| 2843 | status = decode_attr_time(xdr, time); |
| 2844 | bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; |
| 2845 | } |
| 2846 | dprintk("%s: atime=%ld\n", __FUNCTION__, (long)time->tv_sec); |
| 2847 | return status; |
| 2848 | } |
| 2849 | |
| 2850 | static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) |
| 2851 | { |
| 2852 | int status = 0; |
| 2853 | |
| 2854 | time->tv_sec = 0; |
| 2855 | time->tv_nsec = 0; |
| 2856 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) |
| 2857 | return -EIO; |
| 2858 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { |
| 2859 | status = decode_attr_time(xdr, time); |
| 2860 | bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; |
| 2861 | } |
| 2862 | dprintk("%s: ctime=%ld\n", __FUNCTION__, (long)time->tv_sec); |
| 2863 | return status; |
| 2864 | } |
| 2865 | |
| 2866 | static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) |
| 2867 | { |
| 2868 | int status = 0; |
| 2869 | |
| 2870 | time->tv_sec = 0; |
| 2871 | time->tv_nsec = 0; |
| 2872 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) |
| 2873 | return -EIO; |
| 2874 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { |
| 2875 | status = decode_attr_time(xdr, time); |
| 2876 | bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; |
| 2877 | } |
| 2878 | dprintk("%s: mtime=%ld\n", __FUNCTION__, (long)time->tv_sec); |
| 2879 | return status; |
| 2880 | } |
| 2881 | |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2882 | static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2883 | { |
| 2884 | unsigned int attrwords = XDR_QUADLEN(attrlen); |
| 2885 | unsigned int nwords = xdr->p - savep; |
| 2886 | |
| 2887 | if (unlikely(attrwords != nwords)) { |
| 2888 | printk(KERN_WARNING "%s: server returned incorrect attribute length: %u %c %u\n", |
| 2889 | __FUNCTION__, |
| 2890 | attrwords << 2, |
| 2891 | (attrwords < nwords) ? '<' : '>', |
| 2892 | nwords << 2); |
| 2893 | return -EIO; |
| 2894 | } |
| 2895 | return 0; |
| 2896 | } |
| 2897 | |
| 2898 | static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) |
| 2899 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2900 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2901 | |
| 2902 | READ_BUF(20); |
| 2903 | READ32(cinfo->atomic); |
| 2904 | READ64(cinfo->before); |
| 2905 | READ64(cinfo->after); |
| 2906 | return 0; |
| 2907 | } |
| 2908 | |
| 2909 | static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) |
| 2910 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2911 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2912 | uint32_t supp, acc; |
| 2913 | int status; |
| 2914 | |
| 2915 | status = decode_op_hdr(xdr, OP_ACCESS); |
| 2916 | if (status) |
| 2917 | return status; |
| 2918 | READ_BUF(8); |
| 2919 | READ32(supp); |
| 2920 | READ32(acc); |
| 2921 | access->supported = supp; |
| 2922 | access->access = acc; |
| 2923 | return 0; |
| 2924 | } |
| 2925 | |
| 2926 | static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) |
| 2927 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2928 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2929 | int status; |
| 2930 | |
| 2931 | status = decode_op_hdr(xdr, OP_CLOSE); |
| 2932 | if (status) |
| 2933 | return status; |
Trond Myklebust | 8ae20ab | 2007-05-14 16:50:45 -0400 | [diff] [blame] | 2934 | READ_BUF(NFS4_STATEID_SIZE); |
| 2935 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2936 | return 0; |
| 2937 | } |
| 2938 | |
| 2939 | static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) |
| 2940 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2941 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2942 | int status; |
| 2943 | |
| 2944 | status = decode_op_hdr(xdr, OP_COMMIT); |
| 2945 | if (status) |
| 2946 | return status; |
| 2947 | READ_BUF(8); |
| 2948 | COPYMEM(res->verf->verifier, 8); |
| 2949 | return 0; |
| 2950 | } |
| 2951 | |
| 2952 | static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) |
| 2953 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2954 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2955 | uint32_t bmlen; |
| 2956 | int status; |
| 2957 | |
| 2958 | status = decode_op_hdr(xdr, OP_CREATE); |
| 2959 | if (status) |
| 2960 | return status; |
| 2961 | if ((status = decode_change_info(xdr, cinfo))) |
| 2962 | return status; |
| 2963 | READ_BUF(4); |
| 2964 | READ32(bmlen); |
| 2965 | READ_BUF(bmlen << 2); |
| 2966 | return 0; |
| 2967 | } |
| 2968 | |
| 2969 | static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) |
| 2970 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2971 | __be32 *savep; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2972 | uint32_t attrlen, |
| 2973 | bitmap[2] = {0}; |
| 2974 | int status; |
| 2975 | |
| 2976 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) |
| 2977 | goto xdr_error; |
| 2978 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) |
| 2979 | goto xdr_error; |
| 2980 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) |
| 2981 | goto xdr_error; |
| 2982 | if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) |
| 2983 | goto xdr_error; |
| 2984 | if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) |
| 2985 | goto xdr_error; |
| 2986 | if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) |
| 2987 | goto xdr_error; |
| 2988 | if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) |
| 2989 | goto xdr_error; |
| 2990 | status = verify_attr_len(xdr, savep, attrlen); |
| 2991 | xdr_error: |
Trond Myklebust | 16c32b7 | 2005-10-27 22:12:45 -0400 | [diff] [blame] | 2992 | dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2993 | return status; |
| 2994 | } |
| 2995 | |
| 2996 | static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) |
| 2997 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 2998 | __be32 *savep; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2999 | uint32_t attrlen, |
| 3000 | bitmap[2] = {0}; |
| 3001 | int status; |
| 3002 | |
| 3003 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) |
| 3004 | goto xdr_error; |
| 3005 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) |
| 3006 | goto xdr_error; |
| 3007 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) |
| 3008 | goto xdr_error; |
| 3009 | |
| 3010 | if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) |
| 3011 | goto xdr_error; |
| 3012 | if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) |
| 3013 | goto xdr_error; |
| 3014 | if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) |
| 3015 | goto xdr_error; |
| 3016 | if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) |
| 3017 | goto xdr_error; |
| 3018 | if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) |
| 3019 | goto xdr_error; |
| 3020 | if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) |
| 3021 | goto xdr_error; |
| 3022 | |
| 3023 | status = verify_attr_len(xdr, savep, attrlen); |
| 3024 | xdr_error: |
Trond Myklebust | 16c32b7 | 2005-10-27 22:12:45 -0400 | [diff] [blame] | 3025 | dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3026 | return status; |
| 3027 | } |
| 3028 | |
| 3029 | static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) |
| 3030 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 3031 | __be32 *savep; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3032 | uint32_t attrlen, |
| 3033 | bitmap[2] = {0}; |
| 3034 | int status; |
| 3035 | |
| 3036 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) |
| 3037 | goto xdr_error; |
| 3038 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) |
| 3039 | goto xdr_error; |
| 3040 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) |
| 3041 | goto xdr_error; |
| 3042 | |
| 3043 | if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) |
| 3044 | goto xdr_error; |
| 3045 | if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) |
| 3046 | goto xdr_error; |
| 3047 | |
| 3048 | status = verify_attr_len(xdr, savep, attrlen); |
| 3049 | xdr_error: |
Trond Myklebust | 16c32b7 | 2005-10-27 22:12:45 -0400 | [diff] [blame] | 3050 | dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3051 | return status; |
| 3052 | } |
| 3053 | |
| 3054 | static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, const struct nfs_server *server) |
| 3055 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 3056 | __be32 *savep; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3057 | uint32_t attrlen, |
| 3058 | bitmap[2] = {0}, |
| 3059 | type; |
| 3060 | int status, fmode = 0; |
Manoj Naik | 99baf62 | 2006-06-09 09:34:24 -0400 | [diff] [blame] | 3061 | uint64_t fileid; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3062 | |
| 3063 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) |
| 3064 | goto xdr_error; |
| 3065 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) |
| 3066 | goto xdr_error; |
| 3067 | |
| 3068 | fattr->bitmap[0] = bitmap[0]; |
| 3069 | fattr->bitmap[1] = bitmap[1]; |
| 3070 | |
| 3071 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) |
| 3072 | goto xdr_error; |
| 3073 | |
| 3074 | |
| 3075 | if ((status = decode_attr_type(xdr, bitmap, &type)) != 0) |
| 3076 | goto xdr_error; |
| 3077 | fattr->type = nfs_type2fmt[type].nfs2type; |
| 3078 | fmode = nfs_type2fmt[type].mode; |
| 3079 | |
| 3080 | if ((status = decode_attr_change(xdr, bitmap, &fattr->change_attr)) != 0) |
| 3081 | goto xdr_error; |
| 3082 | if ((status = decode_attr_size(xdr, bitmap, &fattr->size)) != 0) |
| 3083 | goto xdr_error; |
Trond Myklebust | 8b4bdcf | 2006-06-09 09:34:19 -0400 | [diff] [blame] | 3084 | if ((status = decode_attr_fsid(xdr, bitmap, &fattr->fsid)) != 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3085 | goto xdr_error; |
| 3086 | if ((status = decode_attr_fileid(xdr, bitmap, &fattr->fileid)) != 0) |
| 3087 | goto xdr_error; |
Trond Myklebust | 683b57b | 2006-06-09 09:34:22 -0400 | [diff] [blame] | 3088 | if ((status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr, |
Manoj Naik | 7aaa0b3 | 2006-06-09 09:34:23 -0400 | [diff] [blame] | 3089 | struct nfs4_fs_locations, |
Trond Myklebust | 683b57b | 2006-06-09 09:34:22 -0400 | [diff] [blame] | 3090 | fattr))) != 0) |
| 3091 | goto xdr_error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3092 | if ((status = decode_attr_mode(xdr, bitmap, &fattr->mode)) != 0) |
| 3093 | goto xdr_error; |
| 3094 | fattr->mode |= fmode; |
| 3095 | if ((status = decode_attr_nlink(xdr, bitmap, &fattr->nlink)) != 0) |
| 3096 | goto xdr_error; |
David Howells | 7539bba | 2006-08-22 20:06:09 -0400 | [diff] [blame] | 3097 | if ((status = decode_attr_owner(xdr, bitmap, server->nfs_client, &fattr->uid)) != 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3098 | goto xdr_error; |
David Howells | 7539bba | 2006-08-22 20:06:09 -0400 | [diff] [blame] | 3099 | if ((status = decode_attr_group(xdr, bitmap, server->nfs_client, &fattr->gid)) != 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3100 | goto xdr_error; |
| 3101 | if ((status = decode_attr_rdev(xdr, bitmap, &fattr->rdev)) != 0) |
| 3102 | goto xdr_error; |
| 3103 | if ((status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used)) != 0) |
| 3104 | goto xdr_error; |
| 3105 | if ((status = decode_attr_time_access(xdr, bitmap, &fattr->atime)) != 0) |
| 3106 | goto xdr_error; |
| 3107 | if ((status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime)) != 0) |
| 3108 | goto xdr_error; |
| 3109 | if ((status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime)) != 0) |
| 3110 | goto xdr_error; |
Manoj Naik | 99baf62 | 2006-06-09 09:34:24 -0400 | [diff] [blame] | 3111 | if ((status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid)) != 0) |
| 3112 | goto xdr_error; |
| 3113 | if (fattr->fileid == 0 && fileid != 0) |
| 3114 | fattr->fileid = fileid; |
Trond Myklebust | 3380114 | 2005-10-27 22:12:39 -0400 | [diff] [blame] | 3115 | if ((status = verify_attr_len(xdr, savep, attrlen)) == 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3116 | 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] | 3117 | xdr_error: |
Trond Myklebust | 16c32b7 | 2005-10-27 22:12:45 -0400 | [diff] [blame] | 3118 | dprintk("%s: xdr returned %d\n", __FUNCTION__, -status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3119 | return status; |
| 3120 | } |
| 3121 | |
| 3122 | |
| 3123 | static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) |
| 3124 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 3125 | __be32 *savep; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3126 | uint32_t attrlen, bitmap[2]; |
| 3127 | int status; |
| 3128 | |
| 3129 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) |
| 3130 | goto xdr_error; |
| 3131 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) |
| 3132 | goto xdr_error; |
| 3133 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) |
| 3134 | goto xdr_error; |
| 3135 | |
| 3136 | fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ |
| 3137 | |
| 3138 | if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) |
| 3139 | goto xdr_error; |
| 3140 | if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) |
| 3141 | goto xdr_error; |
| 3142 | if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) |
| 3143 | goto xdr_error; |
| 3144 | fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; |
| 3145 | if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) |
| 3146 | goto xdr_error; |
| 3147 | fsinfo->wtpref = fsinfo->wtmax; |
| 3148 | |
| 3149 | status = verify_attr_len(xdr, savep, attrlen); |
| 3150 | xdr_error: |
Trond Myklebust | 16c32b7 | 2005-10-27 22:12:45 -0400 | [diff] [blame] | 3151 | dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3152 | return status; |
| 3153 | } |
| 3154 | |
| 3155 | static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) |
| 3156 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 3157 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3158 | uint32_t len; |
| 3159 | int status; |
| 3160 | |
| 3161 | status = decode_op_hdr(xdr, OP_GETFH); |
| 3162 | if (status) |
| 3163 | return status; |
| 3164 | /* Zero handle first to allow comparisons */ |
| 3165 | memset(fh, 0, sizeof(*fh)); |
| 3166 | |
| 3167 | READ_BUF(4); |
| 3168 | READ32(len); |
| 3169 | if (len > NFS4_FHSIZE) |
| 3170 | return -EIO; |
| 3171 | fh->size = len; |
| 3172 | READ_BUF(len); |
| 3173 | COPYMEM(fh->data, len); |
| 3174 | return 0; |
| 3175 | } |
| 3176 | |
| 3177 | static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) |
| 3178 | { |
| 3179 | int status; |
| 3180 | |
| 3181 | status = decode_op_hdr(xdr, OP_LINK); |
| 3182 | if (status) |
| 3183 | return status; |
| 3184 | return decode_change_info(xdr, cinfo); |
| 3185 | } |
| 3186 | |
| 3187 | /* |
| 3188 | * We create the owner, so we know a proper owner.id length is 4. |
| 3189 | */ |
Trond Myklebust | 911d1aa | 2006-01-03 09:55:16 +0100 | [diff] [blame] | 3190 | static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3191 | { |
Trond Myklebust | 911d1aa | 2006-01-03 09:55:16 +0100 | [diff] [blame] | 3192 | uint64_t offset, length, clientid; |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 3193 | __be32 *p; |
Trond Myklebust | 911d1aa | 2006-01-03 09:55:16 +0100 | [diff] [blame] | 3194 | uint32_t namelen, type; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3195 | |
| 3196 | READ_BUF(32); |
Trond Myklebust | 911d1aa | 2006-01-03 09:55:16 +0100 | [diff] [blame] | 3197 | READ64(offset); |
| 3198 | READ64(length); |
| 3199 | READ32(type); |
| 3200 | if (fl != NULL) { |
| 3201 | fl->fl_start = (loff_t)offset; |
| 3202 | fl->fl_end = fl->fl_start + (loff_t)length - 1; |
| 3203 | if (length == ~(uint64_t)0) |
| 3204 | fl->fl_end = OFFSET_MAX; |
| 3205 | fl->fl_type = F_WRLCK; |
| 3206 | if (type & 1) |
| 3207 | fl->fl_type = F_RDLCK; |
| 3208 | fl->fl_pid = 0; |
| 3209 | } |
| 3210 | READ64(clientid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3211 | READ32(namelen); |
| 3212 | READ_BUF(namelen); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3213 | return -NFS4ERR_DENIED; |
| 3214 | } |
| 3215 | |
Trond Myklebust | 911d1aa | 2006-01-03 09:55:16 +0100 | [diff] [blame] | 3216 | static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3217 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 3218 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3219 | int status; |
| 3220 | |
| 3221 | status = decode_op_hdr(xdr, OP_LOCK); |
| 3222 | if (status == 0) { |
Trond Myklebust | 8ae20ab | 2007-05-14 16:50:45 -0400 | [diff] [blame] | 3223 | READ_BUF(NFS4_STATEID_SIZE); |
| 3224 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3225 | } else if (status == -NFS4ERR_DENIED) |
Trond Myklebust | 911d1aa | 2006-01-03 09:55:16 +0100 | [diff] [blame] | 3226 | return decode_lock_denied(xdr, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3227 | return status; |
| 3228 | } |
| 3229 | |
Trond Myklebust | 911d1aa | 2006-01-03 09:55:16 +0100 | [diff] [blame] | 3230 | static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3231 | { |
| 3232 | int status; |
| 3233 | status = decode_op_hdr(xdr, OP_LOCKT); |
| 3234 | if (status == -NFS4ERR_DENIED) |
Trond Myklebust | 911d1aa | 2006-01-03 09:55:16 +0100 | [diff] [blame] | 3235 | return decode_lock_denied(xdr, res->denied); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3236 | return status; |
| 3237 | } |
| 3238 | |
Trond Myklebust | 911d1aa | 2006-01-03 09:55:16 +0100 | [diff] [blame] | 3239 | static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3240 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 3241 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3242 | int status; |
| 3243 | |
| 3244 | status = decode_op_hdr(xdr, OP_LOCKU); |
| 3245 | if (status == 0) { |
Trond Myklebust | 8ae20ab | 2007-05-14 16:50:45 -0400 | [diff] [blame] | 3246 | READ_BUF(NFS4_STATEID_SIZE); |
| 3247 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3248 | } |
| 3249 | return status; |
| 3250 | } |
| 3251 | |
| 3252 | static int decode_lookup(struct xdr_stream *xdr) |
| 3253 | { |
| 3254 | return decode_op_hdr(xdr, OP_LOOKUP); |
| 3255 | } |
| 3256 | |
| 3257 | /* This is too sick! */ |
| 3258 | static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) |
| 3259 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 3260 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3261 | uint32_t limit_type, nblocks, blocksize; |
| 3262 | |
| 3263 | READ_BUF(12); |
| 3264 | READ32(limit_type); |
| 3265 | switch (limit_type) { |
| 3266 | case 1: |
| 3267 | READ64(*maxsize); |
| 3268 | break; |
| 3269 | case 2: |
| 3270 | READ32(nblocks); |
| 3271 | READ32(blocksize); |
| 3272 | *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; |
| 3273 | } |
| 3274 | return 0; |
| 3275 | } |
| 3276 | |
| 3277 | static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) |
| 3278 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 3279 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3280 | uint32_t delegation_type; |
| 3281 | |
| 3282 | READ_BUF(4); |
| 3283 | READ32(delegation_type); |
| 3284 | if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { |
| 3285 | res->delegation_type = 0; |
| 3286 | return 0; |
| 3287 | } |
Trond Myklebust | 8ae20ab | 2007-05-14 16:50:45 -0400 | [diff] [blame] | 3288 | READ_BUF(NFS4_STATEID_SIZE+4); |
| 3289 | COPYMEM(res->delegation.data, NFS4_STATEID_SIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3290 | READ32(res->do_recall); |
| 3291 | switch (delegation_type) { |
| 3292 | case NFS4_OPEN_DELEGATE_READ: |
| 3293 | res->delegation_type = FMODE_READ; |
| 3294 | break; |
| 3295 | case NFS4_OPEN_DELEGATE_WRITE: |
| 3296 | res->delegation_type = FMODE_WRITE|FMODE_READ; |
| 3297 | if (decode_space_limit(xdr, &res->maxsize) < 0) |
| 3298 | return -EIO; |
| 3299 | } |
David Howells | 7539bba | 2006-08-22 20:06:09 -0400 | [diff] [blame] | 3300 | return decode_ace(xdr, NULL, res->server->nfs_client); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3301 | } |
| 3302 | |
| 3303 | static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) |
| 3304 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 3305 | __be32 *p; |
Jeff Layton | aa53ed5 | 2007-06-05 14:49:03 -0400 | [diff] [blame] | 3306 | uint32_t savewords, bmlen, i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3307 | int status; |
| 3308 | |
| 3309 | status = decode_op_hdr(xdr, OP_OPEN); |
| 3310 | if (status) |
| 3311 | return status; |
Trond Myklebust | 8ae20ab | 2007-05-14 16:50:45 -0400 | [diff] [blame] | 3312 | READ_BUF(NFS4_STATEID_SIZE); |
| 3313 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3314 | |
| 3315 | decode_change_info(xdr, &res->cinfo); |
| 3316 | |
| 3317 | READ_BUF(8); |
| 3318 | READ32(res->rflags); |
| 3319 | READ32(bmlen); |
| 3320 | if (bmlen > 10) |
| 3321 | goto xdr_error; |
| 3322 | |
| 3323 | READ_BUF(bmlen << 2); |
Jeff Layton | aa53ed5 | 2007-06-05 14:49:03 -0400 | [diff] [blame] | 3324 | savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); |
| 3325 | for (i = 0; i < savewords; ++i) |
| 3326 | READ32(res->attrset[i]); |
| 3327 | for (; i < NFS4_BITMAP_SIZE; i++) |
| 3328 | res->attrset[i] = 0; |
| 3329 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3330 | return decode_delegation(xdr, res); |
| 3331 | xdr_error: |
Trond Myklebust | 16c32b7 | 2005-10-27 22:12:45 -0400 | [diff] [blame] | 3332 | dprintk("%s: Bitmap too large! Length = %u\n", __FUNCTION__, bmlen); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3333 | return -EIO; |
| 3334 | } |
| 3335 | |
| 3336 | static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) |
| 3337 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 3338 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3339 | int status; |
| 3340 | |
| 3341 | status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); |
| 3342 | if (status) |
| 3343 | return status; |
Trond Myklebust | 8ae20ab | 2007-05-14 16:50:45 -0400 | [diff] [blame] | 3344 | READ_BUF(NFS4_STATEID_SIZE); |
| 3345 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3346 | return 0; |
| 3347 | } |
| 3348 | |
| 3349 | static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) |
| 3350 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 3351 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3352 | int status; |
| 3353 | |
| 3354 | status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); |
| 3355 | if (status) |
| 3356 | return status; |
Trond Myklebust | 8ae20ab | 2007-05-14 16:50:45 -0400 | [diff] [blame] | 3357 | READ_BUF(NFS4_STATEID_SIZE); |
| 3358 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3359 | return 0; |
| 3360 | } |
| 3361 | |
| 3362 | static int decode_putfh(struct xdr_stream *xdr) |
| 3363 | { |
| 3364 | return decode_op_hdr(xdr, OP_PUTFH); |
| 3365 | } |
| 3366 | |
| 3367 | static int decode_putrootfh(struct xdr_stream *xdr) |
| 3368 | { |
| 3369 | return decode_op_hdr(xdr, OP_PUTROOTFH); |
| 3370 | } |
| 3371 | |
| 3372 | static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) |
| 3373 | { |
| 3374 | struct kvec *iov = req->rq_rcv_buf.head; |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 3375 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3376 | uint32_t count, eof, recvd, hdrlen; |
| 3377 | int status; |
| 3378 | |
| 3379 | status = decode_op_hdr(xdr, OP_READ); |
| 3380 | if (status) |
| 3381 | return status; |
| 3382 | READ_BUF(8); |
| 3383 | READ32(eof); |
| 3384 | READ32(count); |
| 3385 | hdrlen = (u8 *) p - (u8 *) iov->iov_base; |
| 3386 | recvd = req->rq_rcv_buf.len - hdrlen; |
| 3387 | if (count > recvd) { |
| 3388 | printk(KERN_WARNING "NFS: server cheating in read reply: " |
| 3389 | "count %u > recvd %u\n", count, recvd); |
| 3390 | count = recvd; |
| 3391 | eof = 0; |
| 3392 | } |
| 3393 | xdr_read_pages(xdr, count); |
| 3394 | res->eof = eof; |
| 3395 | res->count = count; |
| 3396 | return 0; |
| 3397 | } |
| 3398 | |
| 3399 | static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) |
| 3400 | { |
| 3401 | struct xdr_buf *rcvbuf = &req->rq_rcv_buf; |
| 3402 | struct page *page = *rcvbuf->pages; |
| 3403 | struct kvec *iov = rcvbuf->head; |
| 3404 | unsigned int nr, pglen = rcvbuf->page_len; |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 3405 | __be32 *end, *entry, *p, *kaddr; |
David Howells | e889649 | 2006-08-24 15:44:19 -0400 | [diff] [blame] | 3406 | uint32_t len, attrlen, xlen; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3407 | int hdrlen, recvd, status; |
| 3408 | |
| 3409 | status = decode_op_hdr(xdr, OP_READDIR); |
| 3410 | if (status) |
| 3411 | return status; |
| 3412 | READ_BUF(8); |
| 3413 | COPYMEM(readdir->verifier.data, 8); |
Trond Myklebust | eadf459 | 2005-06-22 17:16:39 +0000 | [diff] [blame] | 3414 | dprintk("%s: verifier = 0x%x%x\n", |
| 3415 | __FUNCTION__, |
| 3416 | ((u32 *)readdir->verifier.data)[0], |
| 3417 | ((u32 *)readdir->verifier.data)[1]); |
| 3418 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3419 | |
| 3420 | hdrlen = (char *) p - (char *) iov->iov_base; |
| 3421 | recvd = rcvbuf->len - hdrlen; |
| 3422 | if (pglen > recvd) |
| 3423 | pglen = recvd; |
| 3424 | xdr_read_pages(xdr, pglen); |
| 3425 | |
| 3426 | BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE); |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 3427 | kaddr = p = kmap_atomic(page, KM_USER0); |
David Howells | e889649 | 2006-08-24 15:44:19 -0400 | [diff] [blame] | 3428 | end = p + ((pglen + readdir->pgbase) >> 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3429 | entry = p; |
| 3430 | for (nr = 0; *p++; nr++) { |
David Howells | e889649 | 2006-08-24 15:44:19 -0400 | [diff] [blame] | 3431 | if (end - p < 3) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3432 | goto short_pkt; |
Trond Myklebust | eadf459 | 2005-06-22 17:16:39 +0000 | [diff] [blame] | 3433 | dprintk("cookie = %Lu, ", *((unsigned long long *)p)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3434 | p += 2; /* cookie */ |
| 3435 | len = ntohl(*p++); /* filename length */ |
| 3436 | if (len > NFS4_MAXNAMLEN) { |
| 3437 | printk(KERN_WARNING "NFS: giant filename in readdir (len 0x%x)\n", len); |
| 3438 | goto err_unmap; |
| 3439 | } |
David Howells | e889649 | 2006-08-24 15:44:19 -0400 | [diff] [blame] | 3440 | xlen = XDR_QUADLEN(len); |
| 3441 | if (end - p < xlen + 1) |
| 3442 | goto short_pkt; |
Trond Myklebust | eadf459 | 2005-06-22 17:16:39 +0000 | [diff] [blame] | 3443 | dprintk("filename = %*s\n", len, (char *)p); |
David Howells | e889649 | 2006-08-24 15:44:19 -0400 | [diff] [blame] | 3444 | p += xlen; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3445 | len = ntohl(*p++); /* bitmap length */ |
David Howells | e889649 | 2006-08-24 15:44:19 -0400 | [diff] [blame] | 3446 | if (end - p < len + 1) |
| 3447 | goto short_pkt; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3448 | p += len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3449 | attrlen = XDR_QUADLEN(ntohl(*p++)); |
David Howells | e889649 | 2006-08-24 15:44:19 -0400 | [diff] [blame] | 3450 | if (end - p < attrlen + 2) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3451 | goto short_pkt; |
David Howells | e889649 | 2006-08-24 15:44:19 -0400 | [diff] [blame] | 3452 | p += attrlen; /* attributes */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3453 | entry = p; |
| 3454 | } |
| 3455 | if (!nr && (entry[0] != 0 || entry[1] == 0)) |
| 3456 | goto short_pkt; |
| 3457 | out: |
| 3458 | kunmap_atomic(kaddr, KM_USER0); |
| 3459 | return 0; |
| 3460 | short_pkt: |
Trond Myklebust | eadf459 | 2005-06-22 17:16:39 +0000 | [diff] [blame] | 3461 | dprintk("%s: short packet at entry %d\n", __FUNCTION__, nr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3462 | entry[0] = entry[1] = 0; |
| 3463 | /* truncate listing ? */ |
| 3464 | if (!nr) { |
| 3465 | printk(KERN_NOTICE "NFS: readdir reply truncated!\n"); |
| 3466 | entry[1] = 1; |
| 3467 | } |
| 3468 | goto out; |
| 3469 | err_unmap: |
| 3470 | kunmap_atomic(kaddr, KM_USER0); |
| 3471 | return -errno_NFSERR_IO; |
| 3472 | } |
| 3473 | |
| 3474 | static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) |
| 3475 | { |
| 3476 | struct xdr_buf *rcvbuf = &req->rq_rcv_buf; |
| 3477 | struct kvec *iov = rcvbuf->head; |
| 3478 | int hdrlen, len, recvd; |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 3479 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3480 | char *kaddr; |
| 3481 | int status; |
| 3482 | |
| 3483 | status = decode_op_hdr(xdr, OP_READLINK); |
| 3484 | if (status) |
| 3485 | return status; |
| 3486 | |
| 3487 | /* Convert length of symlink */ |
| 3488 | READ_BUF(4); |
| 3489 | READ32(len); |
| 3490 | if (len >= rcvbuf->page_len || len <= 0) { |
| 3491 | dprintk(KERN_WARNING "nfs: server returned giant symlink!\n"); |
| 3492 | return -ENAMETOOLONG; |
| 3493 | } |
| 3494 | hdrlen = (char *) xdr->p - (char *) iov->iov_base; |
| 3495 | recvd = req->rq_rcv_buf.len - hdrlen; |
| 3496 | if (recvd < len) { |
| 3497 | printk(KERN_WARNING "NFS: server cheating in readlink reply: " |
| 3498 | "count %u > recvd %u\n", len, recvd); |
| 3499 | return -EIO; |
| 3500 | } |
| 3501 | xdr_read_pages(xdr, len); |
| 3502 | /* |
| 3503 | * The XDR encode routine has set things up so that |
| 3504 | * the link text will be copied directly into the |
| 3505 | * buffer. We just have to do overflow-checking, |
| 3506 | * and and null-terminate the text (the VFS expects |
| 3507 | * null-termination). |
| 3508 | */ |
| 3509 | kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0); |
| 3510 | kaddr[len+rcvbuf->page_base] = '\0'; |
| 3511 | kunmap_atomic(kaddr, KM_USER0); |
| 3512 | return 0; |
| 3513 | } |
| 3514 | |
| 3515 | static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) |
| 3516 | { |
| 3517 | int status; |
| 3518 | |
| 3519 | status = decode_op_hdr(xdr, OP_REMOVE); |
| 3520 | if (status) |
| 3521 | goto out; |
| 3522 | status = decode_change_info(xdr, cinfo); |
| 3523 | out: |
| 3524 | return status; |
| 3525 | } |
| 3526 | |
| 3527 | static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, |
| 3528 | struct nfs4_change_info *new_cinfo) |
| 3529 | { |
| 3530 | int status; |
| 3531 | |
| 3532 | status = decode_op_hdr(xdr, OP_RENAME); |
| 3533 | if (status) |
| 3534 | goto out; |
| 3535 | if ((status = decode_change_info(xdr, old_cinfo))) |
| 3536 | goto out; |
| 3537 | status = decode_change_info(xdr, new_cinfo); |
| 3538 | out: |
| 3539 | return status; |
| 3540 | } |
| 3541 | |
| 3542 | static int decode_renew(struct xdr_stream *xdr) |
| 3543 | { |
| 3544 | return decode_op_hdr(xdr, OP_RENEW); |
| 3545 | } |
| 3546 | |
Trond Myklebust | 56ae19f | 2005-10-27 22:12:40 -0400 | [diff] [blame] | 3547 | static int |
| 3548 | decode_restorefh(struct xdr_stream *xdr) |
| 3549 | { |
| 3550 | return decode_op_hdr(xdr, OP_RESTOREFH); |
| 3551 | } |
| 3552 | |
J. Bruce Fields | 029d105 | 2005-06-22 17:16:22 +0000 | [diff] [blame] | 3553 | static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, |
| 3554 | size_t *acl_len) |
| 3555 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 3556 | __be32 *savep; |
J. Bruce Fields | 029d105 | 2005-06-22 17:16:22 +0000 | [diff] [blame] | 3557 | uint32_t attrlen, |
| 3558 | bitmap[2] = {0}; |
| 3559 | struct kvec *iov = req->rq_rcv_buf.head; |
| 3560 | int status; |
| 3561 | |
| 3562 | *acl_len = 0; |
| 3563 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) |
| 3564 | goto out; |
| 3565 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) |
| 3566 | goto out; |
| 3567 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) |
| 3568 | goto out; |
| 3569 | |
| 3570 | if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) |
| 3571 | return -EIO; |
| 3572 | if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { |
| 3573 | int hdrlen, recvd; |
| 3574 | |
| 3575 | /* We ignore &savep and don't do consistency checks on |
| 3576 | * the attr length. Let userspace figure it out.... */ |
| 3577 | hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; |
| 3578 | recvd = req->rq_rcv_buf.len - hdrlen; |
| 3579 | if (attrlen > recvd) { |
| 3580 | printk(KERN_WARNING "NFS: server cheating in getattr" |
| 3581 | " acl reply: attrlen %u > recvd %u\n", |
| 3582 | attrlen, recvd); |
| 3583 | return -EINVAL; |
| 3584 | } |
J. Bruce Fields | c04871e | 2006-05-30 16:28:58 -0400 | [diff] [blame] | 3585 | xdr_read_pages(xdr, attrlen); |
J. Bruce Fields | 029d105 | 2005-06-22 17:16:22 +0000 | [diff] [blame] | 3586 | *acl_len = attrlen; |
J. Bruce Fields | 8c233cf | 2005-10-13 16:54:27 -0400 | [diff] [blame] | 3587 | } else |
| 3588 | status = -EOPNOTSUPP; |
J. Bruce Fields | 029d105 | 2005-06-22 17:16:22 +0000 | [diff] [blame] | 3589 | |
| 3590 | out: |
| 3591 | return status; |
| 3592 | } |
| 3593 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3594 | static int |
| 3595 | decode_savefh(struct xdr_stream *xdr) |
| 3596 | { |
| 3597 | return decode_op_hdr(xdr, OP_SAVEFH); |
| 3598 | } |
| 3599 | |
| 3600 | static int decode_setattr(struct xdr_stream *xdr, struct nfs_setattrres *res) |
| 3601 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 3602 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3603 | uint32_t bmlen; |
| 3604 | int status; |
| 3605 | |
| 3606 | |
| 3607 | status = decode_op_hdr(xdr, OP_SETATTR); |
| 3608 | if (status) |
| 3609 | return status; |
| 3610 | READ_BUF(4); |
| 3611 | READ32(bmlen); |
| 3612 | READ_BUF(bmlen << 2); |
| 3613 | return 0; |
| 3614 | } |
| 3615 | |
David Howells | adfa6f9 | 2006-08-22 20:06:08 -0400 | [diff] [blame] | 3616 | static int decode_setclientid(struct xdr_stream *xdr, struct nfs_client *clp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3617 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 3618 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3619 | uint32_t opnum; |
| 3620 | int32_t nfserr; |
| 3621 | |
| 3622 | READ_BUF(8); |
| 3623 | READ32(opnum); |
| 3624 | if (opnum != OP_SETCLIENTID) { |
| 3625 | printk(KERN_NOTICE |
| 3626 | "nfs4_decode_setclientid: Server returned operation" |
| 3627 | " %d\n", opnum); |
| 3628 | return -EIO; |
| 3629 | } |
| 3630 | READ32(nfserr); |
| 3631 | if (nfserr == NFS_OK) { |
Trond Myklebust | 8ae20ab | 2007-05-14 16:50:45 -0400 | [diff] [blame] | 3632 | READ_BUF(8 + NFS4_VERIFIER_SIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3633 | READ64(clp->cl_clientid); |
Trond Myklebust | 8ae20ab | 2007-05-14 16:50:45 -0400 | [diff] [blame] | 3634 | COPYMEM(clp->cl_confirm.data, NFS4_VERIFIER_SIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3635 | } else if (nfserr == NFSERR_CLID_INUSE) { |
| 3636 | uint32_t len; |
| 3637 | |
| 3638 | /* skip netid string */ |
| 3639 | READ_BUF(4); |
| 3640 | READ32(len); |
| 3641 | READ_BUF(len); |
| 3642 | |
| 3643 | /* skip uaddr string */ |
| 3644 | READ_BUF(4); |
| 3645 | READ32(len); |
| 3646 | READ_BUF(len); |
| 3647 | return -NFSERR_CLID_INUSE; |
| 3648 | } else |
David Howells | 0a8ea43 | 2006-08-22 20:06:08 -0400 | [diff] [blame] | 3649 | return -nfs4_stat_to_errno(nfserr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3650 | |
| 3651 | return 0; |
| 3652 | } |
| 3653 | |
| 3654 | static int decode_setclientid_confirm(struct xdr_stream *xdr) |
| 3655 | { |
| 3656 | return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); |
| 3657 | } |
| 3658 | |
| 3659 | static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) |
| 3660 | { |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 3661 | __be32 *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3662 | int status; |
| 3663 | |
| 3664 | status = decode_op_hdr(xdr, OP_WRITE); |
| 3665 | if (status) |
| 3666 | return status; |
| 3667 | |
| 3668 | READ_BUF(16); |
| 3669 | READ32(res->count); |
| 3670 | READ32(res->verf->committed); |
| 3671 | COPYMEM(res->verf->verifier, 8); |
| 3672 | return 0; |
| 3673 | } |
| 3674 | |
| 3675 | static int decode_delegreturn(struct xdr_stream *xdr) |
| 3676 | { |
| 3677 | return decode_op_hdr(xdr, OP_DELEGRETURN); |
| 3678 | } |
| 3679 | |
| 3680 | /* |
| 3681 | * Decode OPEN_DOWNGRADE response |
| 3682 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 3683 | static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3684 | { |
| 3685 | struct xdr_stream xdr; |
| 3686 | struct compound_hdr hdr; |
| 3687 | int status; |
| 3688 | |
| 3689 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 3690 | status = decode_compound_hdr(&xdr, &hdr); |
| 3691 | if (status) |
| 3692 | goto out; |
| 3693 | status = decode_putfh(&xdr); |
| 3694 | if (status) |
| 3695 | goto out; |
| 3696 | status = decode_open_downgrade(&xdr, res); |
Trond Myklebust | 516a6af | 2005-10-27 22:12:41 -0400 | [diff] [blame] | 3697 | if (status != 0) |
| 3698 | goto out; |
| 3699 | decode_getfattr(&xdr, res->fattr, res->server); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3700 | out: |
| 3701 | return status; |
| 3702 | } |
| 3703 | |
| 3704 | /* |
| 3705 | * END OF "GENERIC" DECODE ROUTINES. |
| 3706 | */ |
| 3707 | |
| 3708 | /* |
| 3709 | * Decode ACCESS response |
| 3710 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 3711 | static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_accessres *res) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3712 | { |
| 3713 | struct xdr_stream xdr; |
| 3714 | struct compound_hdr hdr; |
| 3715 | int status; |
| 3716 | |
| 3717 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 3718 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) |
| 3719 | goto out; |
| 3720 | if ((status = decode_putfh(&xdr)) == 0) |
| 3721 | status = decode_access(&xdr, res); |
| 3722 | out: |
| 3723 | return status; |
| 3724 | } |
| 3725 | |
| 3726 | /* |
| 3727 | * Decode LOOKUP response |
| 3728 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 3729 | static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3730 | { |
| 3731 | struct xdr_stream xdr; |
| 3732 | struct compound_hdr hdr; |
| 3733 | int status; |
| 3734 | |
| 3735 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 3736 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) |
| 3737 | goto out; |
| 3738 | if ((status = decode_putfh(&xdr)) != 0) |
| 3739 | goto out; |
| 3740 | if ((status = decode_lookup(&xdr)) != 0) |
| 3741 | goto out; |
| 3742 | if ((status = decode_getfh(&xdr, res->fh)) != 0) |
| 3743 | goto out; |
| 3744 | status = decode_getfattr(&xdr, res->fattr, res->server); |
| 3745 | out: |
| 3746 | return status; |
| 3747 | } |
| 3748 | |
| 3749 | /* |
| 3750 | * Decode LOOKUP_ROOT response |
| 3751 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 3752 | static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3753 | { |
| 3754 | struct xdr_stream xdr; |
| 3755 | struct compound_hdr hdr; |
| 3756 | int status; |
| 3757 | |
| 3758 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 3759 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) |
| 3760 | goto out; |
| 3761 | if ((status = decode_putrootfh(&xdr)) != 0) |
| 3762 | goto out; |
| 3763 | if ((status = decode_getfh(&xdr, res->fh)) == 0) |
| 3764 | status = decode_getfattr(&xdr, res->fattr, res->server); |
| 3765 | out: |
| 3766 | return status; |
| 3767 | } |
| 3768 | |
| 3769 | /* |
| 3770 | * Decode REMOVE response |
| 3771 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 3772 | static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_remove_res *res) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3773 | { |
| 3774 | struct xdr_stream xdr; |
| 3775 | struct compound_hdr hdr; |
| 3776 | int status; |
| 3777 | |
| 3778 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 3779 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) |
| 3780 | goto out; |
Trond Myklebust | 16e4295 | 2005-10-27 22:12:44 -0400 | [diff] [blame] | 3781 | if ((status = decode_putfh(&xdr)) != 0) |
| 3782 | goto out; |
| 3783 | if ((status = decode_remove(&xdr, &res->cinfo)) != 0) |
| 3784 | goto out; |
| 3785 | decode_getfattr(&xdr, res->dir_attr, res->server); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3786 | out: |
| 3787 | return status; |
| 3788 | } |
| 3789 | |
| 3790 | /* |
| 3791 | * Decode RENAME response |
| 3792 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 3793 | static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_rename_res *res) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3794 | { |
| 3795 | struct xdr_stream xdr; |
| 3796 | struct compound_hdr hdr; |
| 3797 | int status; |
| 3798 | |
| 3799 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 3800 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) |
| 3801 | goto out; |
| 3802 | if ((status = decode_putfh(&xdr)) != 0) |
| 3803 | goto out; |
| 3804 | if ((status = decode_savefh(&xdr)) != 0) |
| 3805 | goto out; |
| 3806 | if ((status = decode_putfh(&xdr)) != 0) |
| 3807 | goto out; |
Trond Myklebust | 6caf2c8 | 2005-10-27 22:12:43 -0400 | [diff] [blame] | 3808 | if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0) |
| 3809 | goto out; |
| 3810 | /* Current FH is target directory */ |
| 3811 | if (decode_getfattr(&xdr, res->new_fattr, res->server) != 0) |
| 3812 | goto out; |
| 3813 | if ((status = decode_restorefh(&xdr)) != 0) |
| 3814 | goto out; |
| 3815 | decode_getfattr(&xdr, res->old_fattr, res->server); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3816 | out: |
| 3817 | return status; |
| 3818 | } |
| 3819 | |
| 3820 | /* |
| 3821 | * Decode LINK response |
| 3822 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 3823 | static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_link_res *res) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3824 | { |
| 3825 | struct xdr_stream xdr; |
| 3826 | struct compound_hdr hdr; |
| 3827 | int status; |
| 3828 | |
| 3829 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 3830 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) |
| 3831 | goto out; |
| 3832 | if ((status = decode_putfh(&xdr)) != 0) |
| 3833 | goto out; |
| 3834 | if ((status = decode_savefh(&xdr)) != 0) |
| 3835 | goto out; |
| 3836 | if ((status = decode_putfh(&xdr)) != 0) |
| 3837 | goto out; |
Trond Myklebust | 91ba2ee | 2005-10-27 22:12:42 -0400 | [diff] [blame] | 3838 | if ((status = decode_link(&xdr, &res->cinfo)) != 0) |
| 3839 | goto out; |
| 3840 | /* |
| 3841 | * Note order: OP_LINK leaves the directory as the current |
| 3842 | * filehandle. |
| 3843 | */ |
| 3844 | if (decode_getfattr(&xdr, res->dir_attr, res->server) != 0) |
| 3845 | goto out; |
| 3846 | if ((status = decode_restorefh(&xdr)) != 0) |
| 3847 | goto out; |
| 3848 | decode_getfattr(&xdr, res->fattr, res->server); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3849 | out: |
| 3850 | return status; |
| 3851 | } |
| 3852 | |
| 3853 | /* |
| 3854 | * Decode CREATE response |
| 3855 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 3856 | static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3857 | { |
| 3858 | struct xdr_stream xdr; |
| 3859 | struct compound_hdr hdr; |
| 3860 | int status; |
| 3861 | |
| 3862 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 3863 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) |
| 3864 | goto out; |
| 3865 | if ((status = decode_putfh(&xdr)) != 0) |
| 3866 | goto out; |
Trond Myklebust | 56ae19f | 2005-10-27 22:12:40 -0400 | [diff] [blame] | 3867 | if ((status = decode_savefh(&xdr)) != 0) |
| 3868 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3869 | if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0) |
| 3870 | goto out; |
| 3871 | if ((status = decode_getfh(&xdr, res->fh)) != 0) |
| 3872 | goto out; |
Trond Myklebust | 56ae19f | 2005-10-27 22:12:40 -0400 | [diff] [blame] | 3873 | if (decode_getfattr(&xdr, res->fattr, res->server) != 0) |
| 3874 | goto out; |
| 3875 | if ((status = decode_restorefh(&xdr)) != 0) |
| 3876 | goto out; |
| 3877 | decode_getfattr(&xdr, res->dir_fattr, res->server); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3878 | out: |
| 3879 | return status; |
| 3880 | } |
| 3881 | |
| 3882 | /* |
| 3883 | * Decode SYMLINK response |
| 3884 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 3885 | static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3886 | { |
| 3887 | return nfs4_xdr_dec_create(rqstp, p, res); |
| 3888 | } |
| 3889 | |
| 3890 | /* |
| 3891 | * Decode GETATTR response |
| 3892 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 3893 | static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_getattr_res *res) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3894 | { |
| 3895 | struct xdr_stream xdr; |
| 3896 | struct compound_hdr hdr; |
| 3897 | int status; |
| 3898 | |
| 3899 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 3900 | status = decode_compound_hdr(&xdr, &hdr); |
| 3901 | if (status) |
| 3902 | goto out; |
| 3903 | status = decode_putfh(&xdr); |
| 3904 | if (status) |
| 3905 | goto out; |
| 3906 | status = decode_getfattr(&xdr, res->fattr, res->server); |
| 3907 | out: |
| 3908 | return status; |
| 3909 | |
| 3910 | } |
| 3911 | |
J. Bruce Fields | 23ec696 | 2005-06-22 17:16:22 +0000 | [diff] [blame] | 3912 | /* |
| 3913 | * Encode an SETACL request |
| 3914 | */ |
| 3915 | static int |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 3916 | nfs4_xdr_enc_setacl(struct rpc_rqst *req, __be32 *p, struct nfs_setaclargs *args) |
J. Bruce Fields | 23ec696 | 2005-06-22 17:16:22 +0000 | [diff] [blame] | 3917 | { |
| 3918 | struct xdr_stream xdr; |
| 3919 | struct compound_hdr hdr = { |
| 3920 | .nops = 2, |
| 3921 | }; |
| 3922 | int status; |
| 3923 | |
| 3924 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); |
| 3925 | encode_compound_hdr(&xdr, &hdr); |
| 3926 | status = encode_putfh(&xdr, args->fh); |
| 3927 | if (status) |
| 3928 | goto out; |
| 3929 | status = encode_setacl(&xdr, args); |
| 3930 | out: |
| 3931 | return status; |
| 3932 | } |
| 3933 | /* |
| 3934 | * Decode SETACL response |
| 3935 | */ |
| 3936 | static int |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 3937 | nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p, void *res) |
J. Bruce Fields | 23ec696 | 2005-06-22 17:16:22 +0000 | [diff] [blame] | 3938 | { |
| 3939 | struct xdr_stream xdr; |
| 3940 | struct compound_hdr hdr; |
| 3941 | int status; |
| 3942 | |
| 3943 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 3944 | status = decode_compound_hdr(&xdr, &hdr); |
| 3945 | if (status) |
| 3946 | goto out; |
| 3947 | status = decode_putfh(&xdr); |
| 3948 | if (status) |
| 3949 | goto out; |
| 3950 | status = decode_setattr(&xdr, res); |
| 3951 | out: |
| 3952 | return status; |
| 3953 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3954 | |
| 3955 | /* |
J. Bruce Fields | 029d105 | 2005-06-22 17:16:22 +0000 | [diff] [blame] | 3956 | * Decode GETACL response |
| 3957 | */ |
| 3958 | static int |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 3959 | nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p, size_t *acl_len) |
J. Bruce Fields | 029d105 | 2005-06-22 17:16:22 +0000 | [diff] [blame] | 3960 | { |
| 3961 | struct xdr_stream xdr; |
| 3962 | struct compound_hdr hdr; |
| 3963 | int status; |
| 3964 | |
| 3965 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 3966 | status = decode_compound_hdr(&xdr, &hdr); |
| 3967 | if (status) |
| 3968 | goto out; |
| 3969 | status = decode_putfh(&xdr); |
| 3970 | if (status) |
| 3971 | goto out; |
| 3972 | status = decode_getacl(&xdr, rqstp, acl_len); |
| 3973 | |
| 3974 | out: |
| 3975 | return status; |
| 3976 | } |
| 3977 | |
| 3978 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3979 | * Decode CLOSE response |
| 3980 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 3981 | static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3982 | { |
| 3983 | struct xdr_stream xdr; |
| 3984 | struct compound_hdr hdr; |
| 3985 | int status; |
| 3986 | |
| 3987 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 3988 | status = decode_compound_hdr(&xdr, &hdr); |
| 3989 | if (status) |
| 3990 | goto out; |
| 3991 | status = decode_putfh(&xdr); |
| 3992 | if (status) |
| 3993 | goto out; |
| 3994 | status = decode_close(&xdr, res); |
Trond Myklebust | 516a6af | 2005-10-27 22:12:41 -0400 | [diff] [blame] | 3995 | if (status != 0) |
| 3996 | goto out; |
| 3997 | /* |
| 3998 | * Note: Server may do delete on close for this file |
| 3999 | * in which case the getattr call will fail with |
| 4000 | * an ESTALE error. Shouldn't be a problem, |
| 4001 | * though, since fattr->valid will remain unset. |
| 4002 | */ |
| 4003 | decode_getfattr(&xdr, res->fattr, res->server); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4004 | out: |
| 4005 | return status; |
| 4006 | } |
| 4007 | |
| 4008 | /* |
| 4009 | * Decode OPEN response |
| 4010 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 4011 | static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4012 | { |
| 4013 | struct xdr_stream xdr; |
| 4014 | struct compound_hdr hdr; |
| 4015 | int status; |
| 4016 | |
| 4017 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 4018 | status = decode_compound_hdr(&xdr, &hdr); |
| 4019 | if (status) |
| 4020 | goto out; |
| 4021 | status = decode_putfh(&xdr); |
| 4022 | if (status) |
| 4023 | goto out; |
Trond Myklebust | 56ae19f | 2005-10-27 22:12:40 -0400 | [diff] [blame] | 4024 | status = decode_savefh(&xdr); |
| 4025 | if (status) |
| 4026 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4027 | status = decode_open(&xdr, res); |
| 4028 | if (status) |
| 4029 | goto out; |
| 4030 | status = decode_getfh(&xdr, &res->fh); |
| 4031 | if (status) |
| 4032 | goto out; |
Trond Myklebust | 56ae19f | 2005-10-27 22:12:40 -0400 | [diff] [blame] | 4033 | if (decode_getfattr(&xdr, res->f_attr, res->server) != 0) |
| 4034 | goto out; |
| 4035 | if ((status = decode_restorefh(&xdr)) != 0) |
| 4036 | goto out; |
| 4037 | decode_getfattr(&xdr, res->dir_attr, res->server); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4038 | out: |
| 4039 | return status; |
| 4040 | } |
| 4041 | |
| 4042 | /* |
| 4043 | * Decode OPEN_CONFIRM response |
| 4044 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 4045 | static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, __be32 *p, struct nfs_open_confirmres *res) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4046 | { |
| 4047 | struct xdr_stream xdr; |
| 4048 | struct compound_hdr hdr; |
| 4049 | int status; |
| 4050 | |
| 4051 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 4052 | status = decode_compound_hdr(&xdr, &hdr); |
| 4053 | if (status) |
| 4054 | goto out; |
| 4055 | status = decode_putfh(&xdr); |
| 4056 | if (status) |
| 4057 | goto out; |
| 4058 | status = decode_open_confirm(&xdr, res); |
| 4059 | out: |
| 4060 | return status; |
| 4061 | } |
| 4062 | |
| 4063 | /* |
| 4064 | * Decode OPEN response |
| 4065 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 4066 | static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4067 | { |
| 4068 | struct xdr_stream xdr; |
| 4069 | struct compound_hdr hdr; |
| 4070 | int status; |
| 4071 | |
| 4072 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 4073 | status = decode_compound_hdr(&xdr, &hdr); |
| 4074 | if (status) |
| 4075 | goto out; |
| 4076 | status = decode_putfh(&xdr); |
| 4077 | if (status) |
| 4078 | goto out; |
| 4079 | status = decode_open(&xdr, res); |
Trond Myklebust | 864472e | 2006-01-03 09:55:15 +0100 | [diff] [blame] | 4080 | if (status) |
| 4081 | goto out; |
| 4082 | decode_getfattr(&xdr, res->f_attr, res->server); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4083 | out: |
| 4084 | return status; |
| 4085 | } |
| 4086 | |
| 4087 | /* |
| 4088 | * Decode SETATTR response |
| 4089 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 4090 | static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_setattrres *res) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4091 | { |
| 4092 | struct xdr_stream xdr; |
| 4093 | struct compound_hdr hdr; |
| 4094 | int status; |
| 4095 | |
| 4096 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 4097 | status = decode_compound_hdr(&xdr, &hdr); |
| 4098 | if (status) |
| 4099 | goto out; |
| 4100 | status = decode_putfh(&xdr); |
| 4101 | if (status) |
| 4102 | goto out; |
| 4103 | status = decode_setattr(&xdr, res); |
| 4104 | if (status) |
| 4105 | goto out; |
| 4106 | status = decode_getfattr(&xdr, res->fattr, res->server); |
| 4107 | if (status == NFS4ERR_DELAY) |
| 4108 | status = 0; |
| 4109 | out: |
| 4110 | return status; |
| 4111 | } |
| 4112 | |
| 4113 | /* |
| 4114 | * Decode LOCK response |
| 4115 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 4116 | static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock_res *res) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4117 | { |
| 4118 | struct xdr_stream xdr; |
| 4119 | struct compound_hdr hdr; |
| 4120 | int status; |
| 4121 | |
| 4122 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 4123 | status = decode_compound_hdr(&xdr, &hdr); |
| 4124 | if (status) |
| 4125 | goto out; |
| 4126 | status = decode_putfh(&xdr); |
| 4127 | if (status) |
| 4128 | goto out; |
| 4129 | status = decode_lock(&xdr, res); |
| 4130 | out: |
| 4131 | return status; |
| 4132 | } |
| 4133 | |
| 4134 | /* |
| 4135 | * Decode LOCKT response |
| 4136 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 4137 | static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lockt_res *res) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4138 | { |
| 4139 | struct xdr_stream xdr; |
| 4140 | struct compound_hdr hdr; |
| 4141 | int status; |
| 4142 | |
| 4143 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 4144 | status = decode_compound_hdr(&xdr, &hdr); |
| 4145 | if (status) |
| 4146 | goto out; |
| 4147 | status = decode_putfh(&xdr); |
| 4148 | if (status) |
| 4149 | goto out; |
| 4150 | status = decode_lockt(&xdr, res); |
| 4151 | out: |
| 4152 | return status; |
| 4153 | } |
| 4154 | |
| 4155 | /* |
| 4156 | * Decode LOCKU response |
| 4157 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 4158 | static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, __be32 *p, struct nfs_locku_res *res) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4159 | { |
| 4160 | struct xdr_stream xdr; |
| 4161 | struct compound_hdr hdr; |
| 4162 | int status; |
| 4163 | |
| 4164 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 4165 | status = decode_compound_hdr(&xdr, &hdr); |
| 4166 | if (status) |
| 4167 | goto out; |
| 4168 | status = decode_putfh(&xdr); |
| 4169 | if (status) |
| 4170 | goto out; |
| 4171 | status = decode_locku(&xdr, res); |
| 4172 | out: |
| 4173 | return status; |
| 4174 | } |
| 4175 | |
| 4176 | /* |
| 4177 | * Decode READLINK response |
| 4178 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 4179 | static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p, void *res) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4180 | { |
| 4181 | struct xdr_stream xdr; |
| 4182 | struct compound_hdr hdr; |
| 4183 | int status; |
| 4184 | |
| 4185 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 4186 | status = decode_compound_hdr(&xdr, &hdr); |
| 4187 | if (status) |
| 4188 | goto out; |
| 4189 | status = decode_putfh(&xdr); |
| 4190 | if (status) |
| 4191 | goto out; |
| 4192 | status = decode_readlink(&xdr, rqstp); |
| 4193 | out: |
| 4194 | return status; |
| 4195 | } |
| 4196 | |
| 4197 | /* |
| 4198 | * Decode READDIR response |
| 4199 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 4200 | static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_readdir_res *res) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4201 | { |
| 4202 | struct xdr_stream xdr; |
| 4203 | struct compound_hdr hdr; |
| 4204 | int status; |
| 4205 | |
| 4206 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 4207 | status = decode_compound_hdr(&xdr, &hdr); |
| 4208 | if (status) |
| 4209 | goto out; |
| 4210 | status = decode_putfh(&xdr); |
| 4211 | if (status) |
| 4212 | goto out; |
| 4213 | status = decode_readdir(&xdr, rqstp, res); |
| 4214 | out: |
| 4215 | return status; |
| 4216 | } |
| 4217 | |
| 4218 | /* |
| 4219 | * Decode Read response |
| 4220 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 4221 | static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, __be32 *p, struct nfs_readres *res) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4222 | { |
| 4223 | struct xdr_stream xdr; |
| 4224 | struct compound_hdr hdr; |
| 4225 | int status; |
| 4226 | |
| 4227 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 4228 | status = decode_compound_hdr(&xdr, &hdr); |
| 4229 | if (status) |
| 4230 | goto out; |
| 4231 | status = decode_putfh(&xdr); |
| 4232 | if (status) |
| 4233 | goto out; |
| 4234 | status = decode_read(&xdr, rqstp, res); |
| 4235 | if (!status) |
| 4236 | status = res->count; |
| 4237 | out: |
| 4238 | return status; |
| 4239 | } |
| 4240 | |
| 4241 | /* |
| 4242 | * Decode WRITE response |
| 4243 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 4244 | static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4245 | { |
| 4246 | struct xdr_stream xdr; |
| 4247 | struct compound_hdr hdr; |
| 4248 | int status; |
| 4249 | |
| 4250 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 4251 | status = decode_compound_hdr(&xdr, &hdr); |
| 4252 | if (status) |
| 4253 | goto out; |
| 4254 | status = decode_putfh(&xdr); |
| 4255 | if (status) |
| 4256 | goto out; |
| 4257 | status = decode_write(&xdr, res); |
Trond Myklebust | 4f9838c | 2005-10-27 22:12:44 -0400 | [diff] [blame] | 4258 | if (status) |
| 4259 | goto out; |
| 4260 | decode_getfattr(&xdr, res->fattr, res->server); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4261 | if (!status) |
| 4262 | status = res->count; |
| 4263 | out: |
| 4264 | return status; |
| 4265 | } |
| 4266 | |
| 4267 | /* |
| 4268 | * Decode COMMIT response |
| 4269 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 4270 | static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4271 | { |
| 4272 | struct xdr_stream xdr; |
| 4273 | struct compound_hdr hdr; |
| 4274 | int status; |
| 4275 | |
| 4276 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 4277 | status = decode_compound_hdr(&xdr, &hdr); |
| 4278 | if (status) |
| 4279 | goto out; |
| 4280 | status = decode_putfh(&xdr); |
| 4281 | if (status) |
| 4282 | goto out; |
| 4283 | status = decode_commit(&xdr, res); |
Trond Myklebust | 4f9838c | 2005-10-27 22:12:44 -0400 | [diff] [blame] | 4284 | if (status) |
| 4285 | goto out; |
| 4286 | decode_getfattr(&xdr, res->fattr, res->server); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4287 | out: |
| 4288 | return status; |
| 4289 | } |
| 4290 | |
| 4291 | /* |
| 4292 | * FSINFO request |
| 4293 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 4294 | static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4295 | { |
| 4296 | struct xdr_stream xdr; |
| 4297 | struct compound_hdr hdr; |
| 4298 | int status; |
| 4299 | |
| 4300 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); |
| 4301 | status = decode_compound_hdr(&xdr, &hdr); |
| 4302 | if (!status) |
| 4303 | status = decode_putfh(&xdr); |
| 4304 | if (!status) |
| 4305 | status = decode_fsinfo(&xdr, fsinfo); |
| 4306 | if (!status) |
David Howells | 0a8ea43 | 2006-08-22 20:06:08 -0400 | [diff] [blame] | 4307 | status = -nfs4_stat_to_errno(hdr.status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4308 | return status; |
| 4309 | } |
| 4310 | |
| 4311 | /* |
| 4312 | * PATHCONF request |
| 4313 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 4314 | static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p, struct nfs_pathconf *pathconf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4315 | { |
| 4316 | struct xdr_stream xdr; |
| 4317 | struct compound_hdr hdr; |
| 4318 | int status; |
| 4319 | |
| 4320 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); |
| 4321 | status = decode_compound_hdr(&xdr, &hdr); |
| 4322 | if (!status) |
| 4323 | status = decode_putfh(&xdr); |
| 4324 | if (!status) |
| 4325 | status = decode_pathconf(&xdr, pathconf); |
| 4326 | return status; |
| 4327 | } |
| 4328 | |
| 4329 | /* |
| 4330 | * STATFS request |
| 4331 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 4332 | static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p, struct nfs_fsstat *fsstat) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4333 | { |
| 4334 | struct xdr_stream xdr; |
| 4335 | struct compound_hdr hdr; |
| 4336 | int status; |
| 4337 | |
| 4338 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); |
| 4339 | status = decode_compound_hdr(&xdr, &hdr); |
| 4340 | if (!status) |
| 4341 | status = decode_putfh(&xdr); |
| 4342 | if (!status) |
| 4343 | status = decode_statfs(&xdr, fsstat); |
| 4344 | return status; |
| 4345 | } |
| 4346 | |
| 4347 | /* |
| 4348 | * GETATTR_BITMAP request |
| 4349 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 4350 | static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, __be32 *p, struct nfs4_server_caps_res *res) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4351 | { |
| 4352 | struct xdr_stream xdr; |
| 4353 | struct compound_hdr hdr; |
| 4354 | int status; |
| 4355 | |
| 4356 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); |
| 4357 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) |
| 4358 | goto out; |
| 4359 | if ((status = decode_putfh(&xdr)) != 0) |
| 4360 | goto out; |
| 4361 | status = decode_server_caps(&xdr, res); |
| 4362 | out: |
| 4363 | return status; |
| 4364 | } |
| 4365 | |
| 4366 | /* |
| 4367 | * Decode RENEW response |
| 4368 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 4369 | static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, __be32 *p, void *dummy) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4370 | { |
| 4371 | struct xdr_stream xdr; |
| 4372 | struct compound_hdr hdr; |
| 4373 | int status; |
| 4374 | |
| 4375 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 4376 | status = decode_compound_hdr(&xdr, &hdr); |
| 4377 | if (!status) |
| 4378 | status = decode_renew(&xdr); |
| 4379 | return status; |
| 4380 | } |
| 4381 | |
| 4382 | /* |
| 4383 | * a SETCLIENTID request |
| 4384 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 4385 | static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, __be32 *p, |
David Howells | adfa6f9 | 2006-08-22 20:06:08 -0400 | [diff] [blame] | 4386 | struct nfs_client *clp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4387 | { |
| 4388 | struct xdr_stream xdr; |
| 4389 | struct compound_hdr hdr; |
| 4390 | int status; |
| 4391 | |
| 4392 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); |
| 4393 | status = decode_compound_hdr(&xdr, &hdr); |
| 4394 | if (!status) |
| 4395 | status = decode_setclientid(&xdr, clp); |
| 4396 | if (!status) |
David Howells | 0a8ea43 | 2006-08-22 20:06:08 -0400 | [diff] [blame] | 4397 | status = -nfs4_stat_to_errno(hdr.status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4398 | return status; |
| 4399 | } |
| 4400 | |
| 4401 | /* |
| 4402 | * a SETCLIENTID_CONFIRM request |
| 4403 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 4404 | static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4405 | { |
| 4406 | struct xdr_stream xdr; |
| 4407 | struct compound_hdr hdr; |
| 4408 | int status; |
| 4409 | |
| 4410 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); |
| 4411 | status = decode_compound_hdr(&xdr, &hdr); |
| 4412 | if (!status) |
| 4413 | status = decode_setclientid_confirm(&xdr); |
| 4414 | if (!status) |
| 4415 | status = decode_putrootfh(&xdr); |
| 4416 | if (!status) |
| 4417 | status = decode_fsinfo(&xdr, fsinfo); |
| 4418 | if (!status) |
David Howells | 0a8ea43 | 2006-08-22 20:06:08 -0400 | [diff] [blame] | 4419 | status = -nfs4_stat_to_errno(hdr.status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4420 | return status; |
| 4421 | } |
| 4422 | |
| 4423 | /* |
| 4424 | * DELEGRETURN request |
| 4425 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 4426 | static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_delegreturnres *res) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4427 | { |
| 4428 | struct xdr_stream xdr; |
| 4429 | struct compound_hdr hdr; |
| 4430 | int status; |
| 4431 | |
| 4432 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
| 4433 | status = decode_compound_hdr(&xdr, &hdr); |
Trond Myklebust | fa178f2 | 2006-01-03 09:55:38 +0100 | [diff] [blame] | 4434 | if (status != 0) |
| 4435 | goto out; |
| 4436 | status = decode_putfh(&xdr); |
| 4437 | if (status != 0) |
| 4438 | goto out; |
| 4439 | status = decode_delegreturn(&xdr); |
| 4440 | decode_getfattr(&xdr, res->fattr, res->server); |
| 4441 | out: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4442 | return status; |
| 4443 | } |
| 4444 | |
Trond Myklebust | 683b57b | 2006-06-09 09:34:22 -0400 | [diff] [blame] | 4445 | /* |
| 4446 | * FS_LOCATIONS request |
| 4447 | */ |
Al Viro | 8687b63 | 2006-10-19 23:28:48 -0700 | [diff] [blame] | 4448 | static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations *res) |
Trond Myklebust | 683b57b | 2006-06-09 09:34:22 -0400 | [diff] [blame] | 4449 | { |
| 4450 | struct xdr_stream xdr; |
| 4451 | struct compound_hdr hdr; |
| 4452 | int status; |
| 4453 | |
| 4454 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); |
| 4455 | status = decode_compound_hdr(&xdr, &hdr); |
| 4456 | if (status != 0) |
| 4457 | goto out; |
| 4458 | if ((status = decode_putfh(&xdr)) != 0) |
| 4459 | goto out; |
| 4460 | if ((status = decode_lookup(&xdr)) != 0) |
| 4461 | goto out; |
| 4462 | xdr_enter_page(&xdr, PAGE_SIZE); |
| 4463 | status = decode_getfattr(&xdr, &res->fattr, res->server); |
| 4464 | out: |
| 4465 | return status; |
| 4466 | } |
| 4467 | |
Al Viro | 0dbb4c6 | 2006-10-19 23:28:49 -0700 | [diff] [blame] | 4468 | __be32 *nfs4_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4469 | { |
| 4470 | uint32_t bitmap[2] = {0}; |
| 4471 | uint32_t len; |
| 4472 | |
| 4473 | if (!*p++) { |
| 4474 | if (!*p) |
| 4475 | return ERR_PTR(-EAGAIN); |
| 4476 | entry->eof = 1; |
| 4477 | return ERR_PTR(-EBADCOOKIE); |
| 4478 | } |
| 4479 | |
| 4480 | entry->prev_cookie = entry->cookie; |
| 4481 | p = xdr_decode_hyper(p, &entry->cookie); |
| 4482 | entry->len = ntohl(*p++); |
| 4483 | entry->name = (const char *) p; |
| 4484 | p += XDR_QUADLEN(entry->len); |
| 4485 | |
| 4486 | /* |
| 4487 | * In case the server doesn't return an inode number, |
| 4488 | * we fake one here. (We don't use inode number 0, |
| 4489 | * since glibc seems to choke on it...) |
| 4490 | */ |
| 4491 | entry->ino = 1; |
| 4492 | |
| 4493 | len = ntohl(*p++); /* bitmap length */ |
| 4494 | if (len-- > 0) { |
| 4495 | bitmap[0] = ntohl(*p++); |
| 4496 | if (len-- > 0) { |
| 4497 | bitmap[1] = ntohl(*p++); |
| 4498 | p += len; |
| 4499 | } |
| 4500 | } |
| 4501 | len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */ |
| 4502 | if (len > 0) { |
Manoj Naik | 97d312d | 2005-06-22 17:16:39 +0000 | [diff] [blame] | 4503 | if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) { |
| 4504 | bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; |
| 4505 | /* Ignore the return value of rdattr_error for now */ |
| 4506 | p++; |
| 4507 | len--; |
| 4508 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4509 | if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID) |
| 4510 | xdr_decode_hyper(p, &entry->ino); |
| 4511 | else if (bitmap[0] == FATTR4_WORD0_FILEID) |
| 4512 | xdr_decode_hyper(p, &entry->ino); |
| 4513 | p += len; |
| 4514 | } |
| 4515 | |
| 4516 | entry->eof = !p[0] && p[1]; |
| 4517 | return p; |
| 4518 | } |
| 4519 | |
| 4520 | /* |
| 4521 | * We need to translate between nfs status return values and |
| 4522 | * the local errno values which may not be the same. |
| 4523 | */ |
| 4524 | static struct { |
| 4525 | int stat; |
| 4526 | int errno; |
| 4527 | } nfs_errtbl[] = { |
| 4528 | { NFS4_OK, 0 }, |
| 4529 | { NFS4ERR_PERM, EPERM }, |
| 4530 | { NFS4ERR_NOENT, ENOENT }, |
| 4531 | { NFS4ERR_IO, errno_NFSERR_IO }, |
| 4532 | { NFS4ERR_NXIO, ENXIO }, |
| 4533 | { NFS4ERR_ACCESS, EACCES }, |
| 4534 | { NFS4ERR_EXIST, EEXIST }, |
| 4535 | { NFS4ERR_XDEV, EXDEV }, |
| 4536 | { NFS4ERR_NOTDIR, ENOTDIR }, |
| 4537 | { NFS4ERR_ISDIR, EISDIR }, |
| 4538 | { NFS4ERR_INVAL, EINVAL }, |
| 4539 | { NFS4ERR_FBIG, EFBIG }, |
| 4540 | { NFS4ERR_NOSPC, ENOSPC }, |
| 4541 | { NFS4ERR_ROFS, EROFS }, |
| 4542 | { NFS4ERR_MLINK, EMLINK }, |
| 4543 | { NFS4ERR_NAMETOOLONG, ENAMETOOLONG }, |
| 4544 | { NFS4ERR_NOTEMPTY, ENOTEMPTY }, |
| 4545 | { NFS4ERR_DQUOT, EDQUOT }, |
| 4546 | { NFS4ERR_STALE, ESTALE }, |
| 4547 | { NFS4ERR_BADHANDLE, EBADHANDLE }, |
Manoj Naik | 6ebf365 | 2005-06-22 17:16:39 +0000 | [diff] [blame] | 4548 | { NFS4ERR_BADOWNER, EINVAL }, |
| 4549 | { NFS4ERR_BADNAME, EINVAL }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4550 | { NFS4ERR_BAD_COOKIE, EBADCOOKIE }, |
| 4551 | { NFS4ERR_NOTSUPP, ENOTSUPP }, |
| 4552 | { NFS4ERR_TOOSMALL, ETOOSMALL }, |
| 4553 | { NFS4ERR_SERVERFAULT, ESERVERFAULT }, |
| 4554 | { NFS4ERR_BADTYPE, EBADTYPE }, |
| 4555 | { NFS4ERR_LOCKED, EAGAIN }, |
| 4556 | { NFS4ERR_RESOURCE, EREMOTEIO }, |
| 4557 | { NFS4ERR_SYMLINK, ELOOP }, |
| 4558 | { NFS4ERR_OP_ILLEGAL, EOPNOTSUPP }, |
| 4559 | { NFS4ERR_DEADLOCK, EDEADLK }, |
| 4560 | { NFS4ERR_WRONGSEC, EPERM }, /* FIXME: this needs |
| 4561 | * to be handled by a |
| 4562 | * middle-layer. |
| 4563 | */ |
| 4564 | { -1, EIO } |
| 4565 | }; |
| 4566 | |
| 4567 | /* |
| 4568 | * Convert an NFS error code to a local one. |
| 4569 | * This one is used jointly by NFSv2 and NFSv3. |
| 4570 | */ |
| 4571 | static int |
David Howells | 0a8ea43 | 2006-08-22 20:06:08 -0400 | [diff] [blame] | 4572 | nfs4_stat_to_errno(int stat) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4573 | { |
| 4574 | int i; |
| 4575 | for (i = 0; nfs_errtbl[i].stat != -1; i++) { |
| 4576 | if (nfs_errtbl[i].stat == stat) |
| 4577 | return nfs_errtbl[i].errno; |
| 4578 | } |
| 4579 | if (stat <= 10000 || stat > 10100) { |
| 4580 | /* The server is looney tunes. */ |
| 4581 | return ESERVERFAULT; |
| 4582 | } |
| 4583 | /* If we cannot translate the error, the recovery routines should |
| 4584 | * handle it. |
| 4585 | * Note: remaining NFSv4 error codes have values > 10000, so should |
| 4586 | * not conflict with native Linux error codes. |
| 4587 | */ |
| 4588 | return stat; |
| 4589 | } |
| 4590 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4591 | #define PROC(proc, argtype, restype) \ |
| 4592 | [NFSPROC4_CLNT_##proc] = { \ |
| 4593 | .p_proc = NFSPROC4_COMPOUND, \ |
| 4594 | .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \ |
| 4595 | .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \ |
Chuck Lever | 2bea90d | 2007-03-29 16:47:53 -0400 | [diff] [blame] | 4596 | .p_arglen = NFS4_##argtype##_sz, \ |
| 4597 | .p_replen = NFS4_##restype##_sz, \ |
Chuck Lever | cc0175c | 2006-03-20 13:44:22 -0500 | [diff] [blame] | 4598 | .p_statidx = NFSPROC4_CLNT_##proc, \ |
| 4599 | .p_name = #proc, \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4600 | } |
| 4601 | |
| 4602 | struct rpc_procinfo nfs4_procedures[] = { |
| 4603 | PROC(READ, enc_read, dec_read), |
| 4604 | PROC(WRITE, enc_write, dec_write), |
| 4605 | PROC(COMMIT, enc_commit, dec_commit), |
| 4606 | PROC(OPEN, enc_open, dec_open), |
| 4607 | PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), |
| 4608 | PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), |
| 4609 | PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), |
| 4610 | PROC(CLOSE, enc_close, dec_close), |
| 4611 | PROC(SETATTR, enc_setattr, dec_setattr), |
| 4612 | PROC(FSINFO, enc_fsinfo, dec_fsinfo), |
| 4613 | PROC(RENEW, enc_renew, dec_renew), |
| 4614 | PROC(SETCLIENTID, enc_setclientid, dec_setclientid), |
| 4615 | PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), |
| 4616 | PROC(LOCK, enc_lock, dec_lock), |
| 4617 | PROC(LOCKT, enc_lockt, dec_lockt), |
| 4618 | PROC(LOCKU, enc_locku, dec_locku), |
| 4619 | PROC(ACCESS, enc_access, dec_access), |
| 4620 | PROC(GETATTR, enc_getattr, dec_getattr), |
| 4621 | PROC(LOOKUP, enc_lookup, dec_lookup), |
| 4622 | PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), |
| 4623 | PROC(REMOVE, enc_remove, dec_remove), |
| 4624 | PROC(RENAME, enc_rename, dec_rename), |
| 4625 | PROC(LINK, enc_link, dec_link), |
| 4626 | PROC(SYMLINK, enc_symlink, dec_symlink), |
| 4627 | PROC(CREATE, enc_create, dec_create), |
| 4628 | PROC(PATHCONF, enc_pathconf, dec_pathconf), |
| 4629 | PROC(STATFS, enc_statfs, dec_statfs), |
| 4630 | PROC(READLINK, enc_readlink, dec_readlink), |
| 4631 | PROC(READDIR, enc_readdir, dec_readdir), |
| 4632 | PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), |
| 4633 | PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), |
J. Bruce Fields | 029d105 | 2005-06-22 17:16:22 +0000 | [diff] [blame] | 4634 | PROC(GETACL, enc_getacl, dec_getacl), |
J. Bruce Fields | 23ec696 | 2005-06-22 17:16:22 +0000 | [diff] [blame] | 4635 | PROC(SETACL, enc_setacl, dec_setacl), |
Trond Myklebust | 683b57b | 2006-06-09 09:34:22 -0400 | [diff] [blame] | 4636 | PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4637 | }; |
| 4638 | |
| 4639 | struct rpc_version nfs_version4 = { |
| 4640 | .number = 4, |
Tobias Klauser | e8c96f8 | 2006-03-24 03:15:34 -0800 | [diff] [blame] | 4641 | .nrprocs = ARRAY_SIZE(nfs4_procedures), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4642 | .procs = nfs4_procedures |
| 4643 | }; |
| 4644 | |
| 4645 | /* |
| 4646 | * Local variables: |
| 4647 | * c-basic-offset: 8 |
| 4648 | * End: |
| 4649 | */ |