Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2 | * Server-side procedures for NFSv4. |
| 3 | * |
| 4 | * Copyright (c) 2002 The Regents of the University of Michigan. |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * Kendrick Smith <kmsmith@umich.edu> |
| 8 | * Andy Adamson <andros@umich.edu> |
| 9 | * |
| 10 | * Redistribution and use in source and binary forms, with or without |
| 11 | * modification, are permitted provided that the following conditions |
| 12 | * are met: |
| 13 | * |
| 14 | * 1. Redistributions of source code must retain the above copyright |
| 15 | * notice, this list of conditions and the following disclaimer. |
| 16 | * 2. Redistributions in binary form must reproduce the above copyright |
| 17 | * notice, this list of conditions and the following disclaimer in the |
| 18 | * documentation and/or other materials provided with the distribution. |
| 19 | * 3. Neither the name of the University nor the names of its |
| 20 | * contributors may be used to endorse or promote products derived |
| 21 | * from this software without specific prior written permission. |
| 22 | * |
| 23 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| 24 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 25 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| 26 | * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 27 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 28 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 29 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
| 30 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| 31 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| 32 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| 33 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 34 | */ |
NeilBrown | 7e06b7f | 2005-06-23 22:03:13 -0700 | [diff] [blame] | 35 | #include <linux/file.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 36 | #include <linux/slab.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 37 | |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 38 | #include "idmap.h" |
Boaz Harrosh | 9a74af2 | 2009-12-03 20:30:56 +0200 | [diff] [blame] | 39 | #include "cache.h" |
| 40 | #include "xdr4.h" |
J. Bruce Fields | 0a3adad | 2009-11-04 18:12:35 -0500 | [diff] [blame] | 41 | #include "vfs.h" |
Tigran Mkrtchyan | 8b70484 | 2012-02-13 22:55:24 +0100 | [diff] [blame] | 42 | #include "current_stateid.h" |
Stanislav Kinsbursky | 3320fef19 | 2012-11-14 18:22:07 +0300 | [diff] [blame] | 43 | #include "netns.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | |
| 45 | #define NFSDDBG_FACILITY NFSDDBG_PROC |
| 46 | |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 47 | static u32 nfsd_attrmask[] = { |
| 48 | NFSD_WRITEABLE_ATTRS_WORD0, |
| 49 | NFSD_WRITEABLE_ATTRS_WORD1, |
| 50 | NFSD_WRITEABLE_ATTRS_WORD2 |
| 51 | }; |
| 52 | |
| 53 | static u32 nfsd41_ex_attrmask[] = { |
| 54 | NFSD_SUPPATTR_EXCLCREAT_WORD0, |
| 55 | NFSD_SUPPATTR_EXCLCREAT_WORD1, |
| 56 | NFSD_SUPPATTR_EXCLCREAT_WORD2 |
| 57 | }; |
| 58 | |
| 59 | static __be32 |
| 60 | check_attr_support(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 61 | u32 *bmval, u32 *writable) |
| 62 | { |
| 63 | struct dentry *dentry = cstate->current_fh.fh_dentry; |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 64 | |
| 65 | /* |
| 66 | * Check about attributes are supported by the NFSv4 server or not. |
| 67 | * According to spec, unsupported attributes return ERR_ATTRNOTSUPP. |
| 68 | */ |
| 69 | if ((bmval[0] & ~nfsd_suppattrs0(cstate->minorversion)) || |
| 70 | (bmval[1] & ~nfsd_suppattrs1(cstate->minorversion)) || |
| 71 | (bmval[2] & ~nfsd_suppattrs2(cstate->minorversion))) |
| 72 | return nfserr_attrnotsupp; |
| 73 | |
| 74 | /* |
Trond Myklebust | a06b126 | 2009-08-31 15:16:11 -0400 | [diff] [blame] | 75 | * Check FATTR4_WORD0_ACL can be supported |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 76 | * in current environment or not. |
| 77 | */ |
| 78 | if (bmval[0] & FATTR4_WORD0_ACL) { |
| 79 | if (!IS_POSIXACL(dentry->d_inode)) |
| 80 | return nfserr_attrnotsupp; |
| 81 | } |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 82 | |
| 83 | /* |
| 84 | * According to spec, read-only attributes return ERR_INVAL. |
| 85 | */ |
| 86 | if (writable) { |
| 87 | if ((bmval[0] & ~writable[0]) || (bmval[1] & ~writable[1]) || |
| 88 | (bmval[2] & ~writable[2])) |
| 89 | return nfserr_inval; |
| 90 | } |
| 91 | |
| 92 | return nfs_ok; |
| 93 | } |
| 94 | |
| 95 | static __be32 |
| 96 | nfsd4_check_open_attributes(struct svc_rqst *rqstp, |
| 97 | struct nfsd4_compound_state *cstate, struct nfsd4_open *open) |
| 98 | { |
| 99 | __be32 status = nfs_ok; |
| 100 | |
| 101 | if (open->op_create == NFS4_OPEN_CREATE) { |
| 102 | if (open->op_createmode == NFS4_CREATE_UNCHECKED |
| 103 | || open->op_createmode == NFS4_CREATE_GUARDED) |
| 104 | status = check_attr_support(rqstp, cstate, |
| 105 | open->op_bmval, nfsd_attrmask); |
| 106 | else if (open->op_createmode == NFS4_CREATE_EXCLUSIVE4_1) |
| 107 | status = check_attr_support(rqstp, cstate, |
| 108 | open->op_bmval, nfsd41_ex_attrmask); |
| 109 | } |
| 110 | |
| 111 | return status; |
| 112 | } |
| 113 | |
Yu Zhiguo | 9208faf | 2009-07-06 17:24:16 +0800 | [diff] [blame] | 114 | static int |
| 115 | is_create_with_attrs(struct nfsd4_open *open) |
| 116 | { |
| 117 | return open->op_create == NFS4_OPEN_CREATE |
| 118 | && (open->op_createmode == NFS4_CREATE_UNCHECKED |
| 119 | || open->op_createmode == NFS4_CREATE_GUARDED |
| 120 | || open->op_createmode == NFS4_CREATE_EXCLUSIVE4_1); |
| 121 | } |
| 122 | |
| 123 | /* |
| 124 | * if error occurs when setting the acl, just clear the acl bit |
| 125 | * in the returned attr bitmap. |
| 126 | */ |
| 127 | static void |
| 128 | do_set_nfs4_acl(struct svc_rqst *rqstp, struct svc_fh *fhp, |
| 129 | struct nfs4_acl *acl, u32 *bmval) |
| 130 | { |
| 131 | __be32 status; |
| 132 | |
| 133 | status = nfsd4_set_nfs4_acl(rqstp, fhp, acl); |
| 134 | if (status) |
| 135 | /* |
| 136 | * We should probably fail the whole open at this point, |
| 137 | * but we've already created the file, so it's too late; |
| 138 | * So this seems the least of evils: |
| 139 | */ |
| 140 | bmval[0] &= ~FATTR4_WORD0_ACL; |
| 141 | } |
| 142 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 143 | static inline void |
| 144 | fh_dup2(struct svc_fh *dst, struct svc_fh *src) |
| 145 | { |
| 146 | fh_put(dst); |
| 147 | dget(src->fh_dentry); |
| 148 | if (src->fh_export) |
| 149 | cache_get(&src->fh_export->h); |
| 150 | *dst = *src; |
| 151 | } |
| 152 | |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 153 | static __be32 |
J. Bruce Fields | dc730e1 | 2006-10-17 00:10:13 -0700 | [diff] [blame] | 154 | do_open_permission(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open *open, int accmode) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 155 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 156 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 157 | |
| 158 | if (open->op_truncate && |
| 159 | !(open->op_share_access & NFS4_SHARE_ACCESS_WRITE)) |
| 160 | return nfserr_inval; |
| 161 | |
J. Bruce Fields | a043226 | 2011-08-25 10:48:39 -0400 | [diff] [blame] | 162 | accmode |= NFSD_MAY_READ_IF_EXEC; |
| 163 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 164 | if (open->op_share_access & NFS4_SHARE_ACCESS_READ) |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 165 | accmode |= NFSD_MAY_READ; |
J. Bruce Fields | 9801d8a | 2006-10-17 00:10:14 -0700 | [diff] [blame] | 166 | if (open->op_share_access & NFS4_SHARE_ACCESS_WRITE) |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 167 | accmode |= (NFSD_MAY_WRITE | NFSD_MAY_TRUNC); |
J. Bruce Fields | 57ecb34 | 2009-12-01 19:42:57 -0500 | [diff] [blame] | 168 | if (open->op_share_deny & NFS4_SHARE_DENY_READ) |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 169 | accmode |= NFSD_MAY_WRITE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 170 | |
| 171 | status = fh_verify(rqstp, current_fh, S_IFREG, accmode); |
| 172 | |
| 173 | return status; |
| 174 | } |
| 175 | |
J. Bruce Fields | aadab6c | 2011-08-15 16:55:02 -0400 | [diff] [blame] | 176 | static __be32 nfsd_check_obj_isreg(struct svc_fh *fh) |
| 177 | { |
| 178 | umode_t mode = fh->fh_dentry->d_inode->i_mode; |
| 179 | |
| 180 | if (S_ISREG(mode)) |
| 181 | return nfs_ok; |
| 182 | if (S_ISDIR(mode)) |
| 183 | return nfserr_isdir; |
| 184 | /* |
| 185 | * Using err_symlink as our catch-all case may look odd; but |
| 186 | * there's no other obvious error for this case in 4.0, and we |
| 187 | * happen to know that it will cause the linux v4 client to do |
| 188 | * the right thing on attempts to open something other than a |
| 189 | * regular file. |
| 190 | */ |
| 191 | return nfserr_symlink; |
| 192 | } |
| 193 | |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 194 | static __be32 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 195 | do_open_lookup(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open *open) |
| 196 | { |
J. Bruce Fields | 59deeb9 | 2012-01-27 16:49:55 -0500 | [diff] [blame] | 197 | struct svc_fh *resfh; |
Neil Brown | 7007c90 | 2012-12-07 15:40:55 -0500 | [diff] [blame] | 198 | int accmode; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 199 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 200 | |
J. Bruce Fields | 59deeb9 | 2012-01-27 16:49:55 -0500 | [diff] [blame] | 201 | resfh = kmalloc(sizeof(struct svc_fh), GFP_KERNEL); |
| 202 | if (!resfh) |
| 203 | return nfserr_jukebox; |
| 204 | fh_init(resfh, NFS4_FHSIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 205 | open->op_truncate = 0; |
| 206 | |
| 207 | if (open->op_create) { |
Benny Halevy | 79fb54a | 2009-04-03 08:29:17 +0300 | [diff] [blame] | 208 | /* FIXME: check session persistence and pnfs flags. |
| 209 | * The nfsv4.1 spec requires the following semantics: |
| 210 | * |
| 211 | * Persistent | pNFS | Server REQUIRED | Client Allowed |
| 212 | * Reply Cache | server | | |
| 213 | * -------------+--------+-----------------+-------------------- |
| 214 | * no | no | EXCLUSIVE4_1 | EXCLUSIVE4_1 |
| 215 | * | | | (SHOULD) |
| 216 | * | | and EXCLUSIVE4 | or EXCLUSIVE4 |
| 217 | * | | | (SHOULD NOT) |
| 218 | * no | yes | EXCLUSIVE4_1 | EXCLUSIVE4_1 |
| 219 | * yes | no | GUARDED4 | GUARDED4 |
| 220 | * yes | yes | GUARDED4 | GUARDED4 |
| 221 | */ |
| 222 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 223 | /* |
| 224 | * Note: create modes (UNCHECKED,GUARDED...) are the same |
Mi Jinlong | ac6721a | 2011-04-20 17:06:25 +0800 | [diff] [blame] | 225 | * in NFSv4 as in v3 except EXCLUSIVE4_1. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 226 | */ |
Mi Jinlong | ac6721a | 2011-04-20 17:06:25 +0800 | [diff] [blame] | 227 | status = do_nfsd_create(rqstp, current_fh, open->op_fname.data, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 228 | open->op_fname.len, &open->op_iattr, |
J. Bruce Fields | 59deeb9 | 2012-01-27 16:49:55 -0500 | [diff] [blame] | 229 | resfh, open->op_createmode, |
Jeff Layton | 749997e | 2007-07-31 00:37:51 -0700 | [diff] [blame] | 230 | (u32 *)open->op_verf.data, |
J. Bruce Fields | 856121b | 2011-10-13 11:37:11 -0400 | [diff] [blame] | 231 | &open->op_truncate, &open->op_created); |
Jeff Layton | 749997e | 2007-07-31 00:37:51 -0700 | [diff] [blame] | 232 | |
J. Bruce Fields | 99f8872 | 2009-02-02 15:12:27 -0500 | [diff] [blame] | 233 | /* |
| 234 | * Following rfc 3530 14.2.16, use the returned bitmask |
| 235 | * to indicate which attributes we used to store the |
| 236 | * verifier: |
Jeff Layton | 749997e | 2007-07-31 00:37:51 -0700 | [diff] [blame] | 237 | */ |
| 238 | if (open->op_createmode == NFS4_CREATE_EXCLUSIVE && status == 0) |
J. Bruce Fields | 99f8872 | 2009-02-02 15:12:27 -0500 | [diff] [blame] | 239 | open->op_bmval[1] = (FATTR4_WORD1_TIME_ACCESS | |
J. Bruce Fields | 9dc4e6c | 2012-04-09 18:06:49 -0400 | [diff] [blame] | 240 | FATTR4_WORD1_TIME_MODIFY); |
J. Bruce Fields | af85852 | 2006-11-08 17:44:39 -0800 | [diff] [blame] | 241 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 242 | status = nfsd_lookup(rqstp, current_fh, |
J. Bruce Fields | 59deeb9 | 2012-01-27 16:49:55 -0500 | [diff] [blame] | 243 | open->op_fname.data, open->op_fname.len, resfh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 244 | fh_unlock(current_fh); |
| 245 | } |
J. Bruce Fields | af85852 | 2006-11-08 17:44:39 -0800 | [diff] [blame] | 246 | if (status) |
| 247 | goto out; |
J. Bruce Fields | 9dc4e6c | 2012-04-09 18:06:49 -0400 | [diff] [blame] | 248 | status = nfsd_check_obj_isreg(resfh); |
| 249 | if (status) |
| 250 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 251 | |
Yu Zhiguo | 9208faf | 2009-07-06 17:24:16 +0800 | [diff] [blame] | 252 | if (is_create_with_attrs(open) && open->op_acl != NULL) |
J. Bruce Fields | 59deeb9 | 2012-01-27 16:49:55 -0500 | [diff] [blame] | 253 | do_set_nfs4_acl(rqstp, resfh, open->op_acl, open->op_bmval); |
Yu Zhiguo | 9208faf | 2009-07-06 17:24:16 +0800 | [diff] [blame] | 254 | |
J. Bruce Fields | af85852 | 2006-11-08 17:44:39 -0800 | [diff] [blame] | 255 | /* set reply cache */ |
J. Bruce Fields | fe0750e | 2011-07-30 23:33:59 -0400 | [diff] [blame] | 256 | fh_copy_shallow(&open->op_openowner->oo_owner.so_replay.rp_openfh, |
J. Bruce Fields | 59deeb9 | 2012-01-27 16:49:55 -0500 | [diff] [blame] | 257 | &resfh->fh_handle); |
Neil Brown | 7007c90 | 2012-12-07 15:40:55 -0500 | [diff] [blame] | 258 | accmode = NFSD_MAY_NOP; |
| 259 | if (open->op_created) |
| 260 | accmode |= NFSD_MAY_OWNER_OVERRIDE; |
| 261 | status = do_open_permission(rqstp, resfh, open, accmode); |
J. Bruce Fields | 41fd1e4 | 2012-01-27 16:26:02 -0500 | [diff] [blame] | 262 | set_change_info(&open->op_cinfo, current_fh); |
J. Bruce Fields | 59deeb9 | 2012-01-27 16:49:55 -0500 | [diff] [blame] | 263 | fh_dup2(current_fh, resfh); |
J. Bruce Fields | af85852 | 2006-11-08 17:44:39 -0800 | [diff] [blame] | 264 | out: |
J. Bruce Fields | 59deeb9 | 2012-01-27 16:49:55 -0500 | [diff] [blame] | 265 | fh_put(resfh); |
| 266 | kfree(resfh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 267 | return status; |
| 268 | } |
| 269 | |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 270 | static __be32 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 271 | do_open_fhandle(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open *open) |
| 272 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 273 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 274 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 275 | /* We don't know the target directory, and therefore can not |
| 276 | * set the change info |
| 277 | */ |
| 278 | |
| 279 | memset(&open->op_cinfo, 0, sizeof(struct nfsd4_change_info)); |
| 280 | |
| 281 | /* set replay cache */ |
J. Bruce Fields | fe0750e | 2011-07-30 23:33:59 -0400 | [diff] [blame] | 282 | fh_copy_shallow(&open->op_openowner->oo_owner.so_replay.rp_openfh, |
J. Bruce Fields | a4773c0 | 2009-02-02 17:23:10 -0500 | [diff] [blame] | 283 | ¤t_fh->fh_handle); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 284 | |
| 285 | open->op_truncate = (open->op_iattr.ia_valid & ATTR_SIZE) && |
| 286 | (open->op_iattr.ia_size == 0); |
| 287 | |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 288 | status = do_open_permission(rqstp, current_fh, open, |
| 289 | NFSD_MAY_OWNER_OVERRIDE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 290 | |
| 291 | return status; |
| 292 | } |
| 293 | |
Andy Adamson | 60adfc5 | 2009-04-03 08:28:50 +0300 | [diff] [blame] | 294 | static void |
| 295 | copy_clientid(clientid_t *clid, struct nfsd4_session *session) |
| 296 | { |
| 297 | struct nfsd4_sessionid *sid = |
| 298 | (struct nfsd4_sessionid *)session->se_sessionid.data; |
| 299 | |
| 300 | clid->cl_boot = sid->clientid.cl_boot; |
| 301 | clid->cl_id = sid->clientid.cl_id; |
| 302 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 303 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 304 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 305 | nfsd4_open(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
J.Bruce Fields | a4f1706a9 | 2006-12-13 00:35:28 -0800 | [diff] [blame] | 306 | struct nfsd4_open *open) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 307 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 308 | __be32 status; |
Andy Adamson | 6668958 | 2009-04-03 08:28:45 +0300 | [diff] [blame] | 309 | struct nfsd4_compoundres *resp; |
Stanislav Kinsbursky | 3320fef19 | 2012-11-14 18:22:07 +0300 | [diff] [blame] | 310 | struct net *net = SVC_NET(rqstp); |
| 311 | struct nfsd_net *nn = net_generic(net, nfsd_net_id); |
Andy Adamson | 6668958 | 2009-04-03 08:28:45 +0300 | [diff] [blame] | 312 | |
J. Bruce Fields | fe0750e | 2011-07-30 23:33:59 -0400 | [diff] [blame] | 313 | dprintk("NFSD: nfsd4_open filename %.*s op_openowner %p\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 314 | (int)open->op_fname.len, open->op_fname.data, |
J. Bruce Fields | fe0750e | 2011-07-30 23:33:59 -0400 | [diff] [blame] | 315 | open->op_openowner); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 316 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 317 | /* This check required by spec. */ |
| 318 | if (open->op_create && open->op_claim_type != NFS4_OPEN_CLAIM_NULL) |
| 319 | return nfserr_inval; |
| 320 | |
J. Bruce Fields | 856121b | 2011-10-13 11:37:11 -0400 | [diff] [blame] | 321 | open->op_created = 0; |
Mi Jinlong | ab1350b | 2011-07-14 15:06:26 +0800 | [diff] [blame] | 322 | /* |
| 323 | * RFC5661 18.51.3 |
| 324 | * Before RECLAIM_COMPLETE done, server should deny new lock |
| 325 | */ |
| 326 | if (nfsd4_has_session(cstate) && |
Jeff Layton | a52d726 | 2012-03-21 09:52:02 -0400 | [diff] [blame] | 327 | !test_bit(NFSD4_CLIENT_RECLAIM_COMPLETE, |
| 328 | &cstate->session->se_client->cl_flags) && |
Mi Jinlong | ab1350b | 2011-07-14 15:06:26 +0800 | [diff] [blame] | 329 | open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS) |
| 330 | return nfserr_grace; |
| 331 | |
Andy Adamson | 60adfc5 | 2009-04-03 08:28:50 +0300 | [diff] [blame] | 332 | if (nfsd4_has_session(cstate)) |
| 333 | copy_clientid(&open->op_clientid, cstate->session); |
| 334 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 335 | nfs4_lock_state(); |
| 336 | |
| 337 | /* check seqid for replay. set nfs4_owner */ |
Andy Adamson | 6668958 | 2009-04-03 08:28:45 +0300 | [diff] [blame] | 338 | resp = rqstp->rq_resp; |
Stanislav Kinsbursky | 3320fef19 | 2012-11-14 18:22:07 +0300 | [diff] [blame] | 339 | status = nfsd4_process_open1(&resp->cstate, open, nn); |
Al Viro | a90b061 | 2006-10-19 23:29:03 -0700 | [diff] [blame] | 340 | if (status == nfserr_replay_me) { |
J. Bruce Fields | fe0750e | 2011-07-30 23:33:59 -0400 | [diff] [blame] | 341 | struct nfs4_replay *rp = &open->op_openowner->oo_owner.so_replay; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 342 | fh_put(&cstate->current_fh); |
J. Bruce Fields | a4773c0 | 2009-02-02 17:23:10 -0500 | [diff] [blame] | 343 | fh_copy_shallow(&cstate->current_fh.fh_handle, |
| 344 | &rp->rp_openfh); |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 345 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 346 | if (status) |
| 347 | dprintk("nfsd4_open: replay failed" |
| 348 | " restoring previous filehandle\n"); |
| 349 | else |
Al Viro | a90b061 | 2006-10-19 23:29:03 -0700 | [diff] [blame] | 350 | status = nfserr_replay_me; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 351 | } |
| 352 | if (status) |
| 353 | goto out; |
J. Bruce Fields | 9d313b1 | 2013-02-28 12:51:49 -0800 | [diff] [blame] | 354 | if (open->op_xdr_error) { |
| 355 | status = open->op_xdr_error; |
| 356 | goto out; |
| 357 | } |
J. Bruce Fields | fb553c0 | 2006-01-18 17:43:36 -0800 | [diff] [blame] | 358 | |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 359 | status = nfsd4_check_open_attributes(rqstp, cstate, open); |
| 360 | if (status) |
| 361 | goto out; |
| 362 | |
J. Bruce Fields | fb553c0 | 2006-01-18 17:43:36 -0800 | [diff] [blame] | 363 | /* Openowner is now set, so sequence id will get bumped. Now we need |
| 364 | * these checks before we do any creates: */ |
J. Bruce Fields | cbd0d51 | 2006-02-07 12:58:32 -0800 | [diff] [blame] | 365 | status = nfserr_grace; |
Stanislav Kinsbursky | 3320fef19 | 2012-11-14 18:22:07 +0300 | [diff] [blame] | 366 | if (locks_in_grace(net) && open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS) |
J. Bruce Fields | cbd0d51 | 2006-02-07 12:58:32 -0800 | [diff] [blame] | 367 | goto out; |
| 368 | status = nfserr_no_grace; |
Stanislav Kinsbursky | 3320fef19 | 2012-11-14 18:22:07 +0300 | [diff] [blame] | 369 | if (!locks_in_grace(net) && open->op_claim_type == NFS4_OPEN_CLAIM_PREVIOUS) |
J. Bruce Fields | cbd0d51 | 2006-02-07 12:58:32 -0800 | [diff] [blame] | 370 | goto out; |
J. Bruce Fields | fb553c0 | 2006-01-18 17:43:36 -0800 | [diff] [blame] | 371 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 372 | switch (open->op_claim_type) { |
NeilBrown | 0dd3c19 | 2005-06-23 22:02:56 -0700 | [diff] [blame] | 373 | case NFS4_OPEN_CLAIM_DELEGATE_CUR: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 374 | case NFS4_OPEN_CLAIM_NULL: |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 375 | status = do_open_lookup(rqstp, &cstate->current_fh, |
| 376 | open); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 377 | if (status) |
| 378 | goto out; |
| 379 | break; |
| 380 | case NFS4_OPEN_CLAIM_PREVIOUS: |
J. Bruce Fields | dad1c06 | 2011-09-12 12:24:13 -0400 | [diff] [blame] | 381 | open->op_openowner->oo_flags |= NFS4_OO_CONFIRMED; |
Stanislav Kinsbursky | 3320fef19 | 2012-11-14 18:22:07 +0300 | [diff] [blame] | 382 | status = nfs4_check_open_reclaim(&open->op_clientid, |
| 383 | cstate->minorversion, |
| 384 | nn); |
Mi Jinlong | 0cf99b9 | 2011-11-23 10:48:40 +0800 | [diff] [blame] | 385 | if (status) |
| 386 | goto out; |
J. Bruce Fields | 8b289b2 | 2011-10-19 11:52:12 -0400 | [diff] [blame] | 387 | case NFS4_OPEN_CLAIM_FH: |
| 388 | case NFS4_OPEN_CLAIM_DELEG_CUR_FH: |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 389 | status = do_open_fhandle(rqstp, &cstate->current_fh, |
| 390 | open); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 391 | if (status) |
| 392 | goto out; |
| 393 | break; |
J. Bruce Fields | 8b289b2 | 2011-10-19 11:52:12 -0400 | [diff] [blame] | 394 | case NFS4_OPEN_CLAIM_DELEG_PREV_FH: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 395 | case NFS4_OPEN_CLAIM_DELEGATE_PREV: |
J. Bruce Fields | dad1c06 | 2011-09-12 12:24:13 -0400 | [diff] [blame] | 396 | open->op_openowner->oo_flags |= NFS4_OO_CONFIRMED; |
J. Bruce Fields | 2fdada0 | 2007-07-27 16:10:37 -0400 | [diff] [blame] | 397 | dprintk("NFSD: unsupported OPEN claim type %d\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 398 | open->op_claim_type); |
| 399 | status = nfserr_notsupp; |
| 400 | goto out; |
| 401 | default: |
J. Bruce Fields | 2fdada0 | 2007-07-27 16:10:37 -0400 | [diff] [blame] | 402 | dprintk("NFSD: Invalid OPEN claim type %d\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 403 | open->op_claim_type); |
| 404 | status = nfserr_inval; |
| 405 | goto out; |
| 406 | } |
| 407 | /* |
| 408 | * nfsd4_process_open2() does the actual opening of the file. If |
| 409 | * successful, it (1) truncates the file if open->op_truncate was |
| 410 | * set, (2) sets open->op_stateid, (3) sets open->op_delegation. |
| 411 | */ |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 412 | status = nfsd4_process_open2(rqstp, &cstate->current_fh, open); |
J. Bruce Fields | 856121b | 2011-10-13 11:37:11 -0400 | [diff] [blame] | 413 | WARN_ON(status && open->op_created); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 414 | out: |
J. Bruce Fields | d29b20c | 2011-10-13 15:12:59 -0400 | [diff] [blame] | 415 | nfsd4_cleanup_open_state(open, status); |
J. Bruce Fields | fe0750e | 2011-07-30 23:33:59 -0400 | [diff] [blame] | 416 | if (open->op_openowner) |
| 417 | cstate->replay_owner = &open->op_openowner->oo_owner; |
J. Bruce Fields | 9411b1d | 2013-04-01 16:37:12 -0400 | [diff] [blame^] | 418 | nfsd4_bump_seqid(cstate, status); |
| 419 | if (!cstate->replay_owner) |
J. Bruce Fields | 5ec094c | 2011-08-30 17:02:48 -0400 | [diff] [blame] | 420 | nfs4_unlock_state(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 421 | return status; |
| 422 | } |
| 423 | |
| 424 | /* |
J. Bruce Fields | 9d313b1 | 2013-02-28 12:51:49 -0800 | [diff] [blame] | 425 | * OPEN is the only seqid-mutating operation whose decoding can fail |
| 426 | * with a seqid-mutating error (specifically, decoding of user names in |
| 427 | * the attributes). Therefore we have to do some processing to look up |
| 428 | * the stateowner so that we can bump the seqid. |
| 429 | */ |
| 430 | static __be32 nfsd4_open_omfg(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_op *op) |
| 431 | { |
| 432 | struct nfsd4_open *open = (struct nfsd4_open *)&op->u; |
| 433 | |
| 434 | if (!seqid_mutating_err(ntohl(op->status))) |
| 435 | return op->status; |
| 436 | if (nfsd4_has_session(cstate)) |
| 437 | return op->status; |
| 438 | open->op_xdr_error = op->status; |
| 439 | return nfsd4_open(rqstp, cstate, open); |
| 440 | } |
| 441 | |
| 442 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 443 | * filehandle-manipulating ops. |
| 444 | */ |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 445 | static __be32 |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 446 | nfsd4_getfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 447 | struct svc_fh **getfh) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 448 | { |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 449 | if (!cstate->current_fh.fh_dentry) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 450 | return nfserr_nofilehandle; |
| 451 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 452 | *getfh = &cstate->current_fh; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 453 | return nfs_ok; |
| 454 | } |
| 455 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 456 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 457 | nfsd4_putfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 458 | struct nfsd4_putfh *putfh) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 459 | { |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 460 | fh_put(&cstate->current_fh); |
| 461 | cstate->current_fh.fh_handle.fh_size = putfh->pf_fhlen; |
| 462 | memcpy(&cstate->current_fh.fh_handle.fh_base, putfh->pf_fhval, |
| 463 | putfh->pf_fhlen); |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 464 | return fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_BYPASS_GSS); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 465 | } |
| 466 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 467 | static __be32 |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 468 | nfsd4_putrootfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 469 | void *arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 470 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 471 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 472 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 473 | fh_put(&cstate->current_fh); |
J. Bruce Fields | df547ef | 2007-07-17 04:04:43 -0700 | [diff] [blame] | 474 | status = exp_pseudoroot(rqstp, &cstate->current_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 475 | return status; |
| 476 | } |
| 477 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 478 | static __be32 |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 479 | nfsd4_restorefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 480 | void *arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 481 | { |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 482 | if (!cstate->save_fh.fh_dentry) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 483 | return nfserr_restorefh; |
| 484 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 485 | fh_dup2(&cstate->current_fh, &cstate->save_fh); |
Tigran Mkrtchyan | 37c593c | 2012-02-13 22:55:32 +0100 | [diff] [blame] | 486 | if (HAS_STATE_ID(cstate, SAVED_STATE_ID_FLAG)) { |
| 487 | memcpy(&cstate->current_stateid, &cstate->save_stateid, sizeof(stateid_t)); |
| 488 | SET_STATE_ID(cstate, CURRENT_STATE_ID_FLAG); |
| 489 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 490 | return nfs_ok; |
| 491 | } |
| 492 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 493 | static __be32 |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 494 | nfsd4_savefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 495 | void *arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 496 | { |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 497 | if (!cstate->current_fh.fh_dentry) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 498 | return nfserr_nofilehandle; |
| 499 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 500 | fh_dup2(&cstate->save_fh, &cstate->current_fh); |
Tigran Mkrtchyan | 37c593c | 2012-02-13 22:55:32 +0100 | [diff] [blame] | 501 | if (HAS_STATE_ID(cstate, CURRENT_STATE_ID_FLAG)) { |
| 502 | memcpy(&cstate->save_stateid, &cstate->current_stateid, sizeof(stateid_t)); |
| 503 | SET_STATE_ID(cstate, SAVED_STATE_ID_FLAG); |
| 504 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 505 | return nfs_ok; |
| 506 | } |
| 507 | |
| 508 | /* |
| 509 | * misc nfsv4 ops |
| 510 | */ |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 511 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 512 | nfsd4_access(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 513 | struct nfsd4_access *access) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 514 | { |
| 515 | if (access->ac_req_access & ~NFS3_ACCESS_FULL) |
| 516 | return nfserr_inval; |
| 517 | |
| 518 | access->ac_resp_access = access->ac_req_access; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 519 | return nfsd_access(rqstp, &cstate->current_fh, &access->ac_resp_access, |
| 520 | &access->ac_supported); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 521 | } |
| 522 | |
Stanislav Kinsbursky | b9c0ef8 | 2012-12-06 14:23:19 +0300 | [diff] [blame] | 523 | static void gen_boot_verifier(nfs4_verifier *verifier, struct net *net) |
Chuck Lever | ab4684d | 2012-03-02 17:13:50 -0500 | [diff] [blame] | 524 | { |
| 525 | __be32 verf[2]; |
Stanislav Kinsbursky | b9c0ef8 | 2012-12-06 14:23:19 +0300 | [diff] [blame] | 526 | struct nfsd_net *nn = net_generic(net, nfsd_net_id); |
Chuck Lever | ab4684d | 2012-03-02 17:13:50 -0500 | [diff] [blame] | 527 | |
Stanislav Kinsbursky | b9c0ef8 | 2012-12-06 14:23:19 +0300 | [diff] [blame] | 528 | verf[0] = (__be32)nn->nfssvc_boot.tv_sec; |
| 529 | verf[1] = (__be32)nn->nfssvc_boot.tv_usec; |
Chuck Lever | ab4684d | 2012-03-02 17:13:50 -0500 | [diff] [blame] | 530 | memcpy(verifier->data, verf, sizeof(verifier->data)); |
| 531 | } |
| 532 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 533 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 534 | nfsd4_commit(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 535 | struct nfsd4_commit *commit) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 536 | { |
Stanislav Kinsbursky | b9c0ef8 | 2012-12-06 14:23:19 +0300 | [diff] [blame] | 537 | gen_boot_verifier(&commit->co_verf, SVC_NET(rqstp)); |
J. Bruce Fields | 75c096f | 2011-08-15 18:39:32 -0400 | [diff] [blame] | 538 | return nfsd_commit(rqstp, &cstate->current_fh, commit->co_offset, |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 539 | commit->co_count); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 540 | } |
| 541 | |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 542 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 543 | nfsd4_create(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 544 | struct nfsd4_create *create) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 545 | { |
| 546 | struct svc_fh resfh; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 547 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 548 | dev_t rdev; |
| 549 | |
| 550 | fh_init(&resfh, NFS4_FHSIZE); |
| 551 | |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 552 | status = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, |
| 553 | NFSD_MAY_CREATE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 554 | if (status) |
| 555 | return status; |
| 556 | |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 557 | status = check_attr_support(rqstp, cstate, create->cr_bmval, |
| 558 | nfsd_attrmask); |
| 559 | if (status) |
| 560 | return status; |
| 561 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 562 | switch (create->cr_type) { |
| 563 | case NF4LNK: |
| 564 | /* ugh! we have to null-terminate the linktext, or |
| 565 | * vfs_symlink() will choke. it is always safe to |
| 566 | * null-terminate by brute force, since at worst we |
| 567 | * will overwrite the first byte of the create namelen |
| 568 | * in the XDR buffer, which has already been extracted |
| 569 | * during XDR decode. |
| 570 | */ |
| 571 | create->cr_linkname[create->cr_linklen] = 0; |
| 572 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 573 | status = nfsd_symlink(rqstp, &cstate->current_fh, |
| 574 | create->cr_name, create->cr_namelen, |
| 575 | create->cr_linkname, create->cr_linklen, |
| 576 | &resfh, &create->cr_iattr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 577 | break; |
| 578 | |
| 579 | case NF4BLK: |
| 580 | rdev = MKDEV(create->cr_specdata1, create->cr_specdata2); |
| 581 | if (MAJOR(rdev) != create->cr_specdata1 || |
| 582 | MINOR(rdev) != create->cr_specdata2) |
| 583 | return nfserr_inval; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 584 | status = nfsd_create(rqstp, &cstate->current_fh, |
| 585 | create->cr_name, create->cr_namelen, |
| 586 | &create->cr_iattr, S_IFBLK, rdev, &resfh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 587 | break; |
| 588 | |
| 589 | case NF4CHR: |
| 590 | rdev = MKDEV(create->cr_specdata1, create->cr_specdata2); |
| 591 | if (MAJOR(rdev) != create->cr_specdata1 || |
| 592 | MINOR(rdev) != create->cr_specdata2) |
| 593 | return nfserr_inval; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 594 | status = nfsd_create(rqstp, &cstate->current_fh, |
| 595 | create->cr_name, create->cr_namelen, |
| 596 | &create->cr_iattr,S_IFCHR, rdev, &resfh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 597 | break; |
| 598 | |
| 599 | case NF4SOCK: |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 600 | status = nfsd_create(rqstp, &cstate->current_fh, |
| 601 | create->cr_name, create->cr_namelen, |
| 602 | &create->cr_iattr, S_IFSOCK, 0, &resfh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 603 | break; |
| 604 | |
| 605 | case NF4FIFO: |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 606 | status = nfsd_create(rqstp, &cstate->current_fh, |
| 607 | create->cr_name, create->cr_namelen, |
| 608 | &create->cr_iattr, S_IFIFO, 0, &resfh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 609 | break; |
| 610 | |
| 611 | case NF4DIR: |
| 612 | create->cr_iattr.ia_valid &= ~ATTR_SIZE; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 613 | status = nfsd_create(rqstp, &cstate->current_fh, |
| 614 | create->cr_name, create->cr_namelen, |
| 615 | &create->cr_iattr, S_IFDIR, 0, &resfh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 616 | break; |
| 617 | |
| 618 | default: |
| 619 | status = nfserr_badtype; |
| 620 | } |
| 621 | |
Yu Zhiguo | 9208faf | 2009-07-06 17:24:16 +0800 | [diff] [blame] | 622 | if (status) |
| 623 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 624 | |
Yu Zhiguo | 9208faf | 2009-07-06 17:24:16 +0800 | [diff] [blame] | 625 | if (create->cr_acl != NULL) |
| 626 | do_set_nfs4_acl(rqstp, &resfh, create->cr_acl, |
| 627 | create->cr_bmval); |
| 628 | |
| 629 | fh_unlock(&cstate->current_fh); |
| 630 | set_change_info(&create->cr_cinfo, &cstate->current_fh); |
| 631 | fh_dup2(&cstate->current_fh, &resfh); |
| 632 | out: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 633 | fh_put(&resfh); |
| 634 | return status; |
| 635 | } |
| 636 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 637 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 638 | nfsd4_getattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 639 | struct nfsd4_getattr *getattr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 640 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 641 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 642 | |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 643 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 644 | if (status) |
| 645 | return status; |
| 646 | |
| 647 | if (getattr->ga_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1) |
| 648 | return nfserr_inval; |
| 649 | |
Andy Adamson | 7e70570 | 2009-04-03 08:29:11 +0300 | [diff] [blame] | 650 | getattr->ga_bmval[0] &= nfsd_suppattrs0(cstate->minorversion); |
| 651 | getattr->ga_bmval[1] &= nfsd_suppattrs1(cstate->minorversion); |
| 652 | getattr->ga_bmval[2] &= nfsd_suppattrs2(cstate->minorversion); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 653 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 654 | getattr->ga_fhp = &cstate->current_fh; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 655 | return nfs_ok; |
| 656 | } |
| 657 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 658 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 659 | nfsd4_link(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 660 | struct nfsd4_link *link) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 661 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 662 | __be32 status = nfserr_nofilehandle; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 663 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 664 | if (!cstate->save_fh.fh_dentry) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 665 | return status; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 666 | status = nfsd_link(rqstp, &cstate->current_fh, |
| 667 | link->li_name, link->li_namelen, &cstate->save_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 668 | if (!status) |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 669 | set_change_info(&link->li_cinfo, &cstate->current_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 670 | return status; |
| 671 | } |
| 672 | |
J. Bruce Fields | 0ff7ab4 | 2010-12-16 10:06:27 -0500 | [diff] [blame] | 673 | static __be32 nfsd4_do_lookupp(struct svc_rqst *rqstp, struct svc_fh *fh) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 674 | { |
| 675 | struct svc_fh tmp_fh; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 676 | __be32 ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 677 | |
| 678 | fh_init(&tmp_fh, NFS4_FHSIZE); |
J. Bruce Fields | df547ef | 2007-07-17 04:04:43 -0700 | [diff] [blame] | 679 | ret = exp_pseudoroot(rqstp, &tmp_fh); |
| 680 | if (ret) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 681 | return ret; |
J. Bruce Fields | 0ff7ab4 | 2010-12-16 10:06:27 -0500 | [diff] [blame] | 682 | if (tmp_fh.fh_dentry == fh->fh_dentry) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 683 | fh_put(&tmp_fh); |
| 684 | return nfserr_noent; |
| 685 | } |
| 686 | fh_put(&tmp_fh); |
J. Bruce Fields | 0ff7ab4 | 2010-12-16 10:06:27 -0500 | [diff] [blame] | 687 | return nfsd_lookup(rqstp, fh, "..", 2, fh); |
| 688 | } |
| 689 | |
| 690 | static __be32 |
| 691 | nfsd4_lookupp(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 692 | void *arg) |
| 693 | { |
| 694 | return nfsd4_do_lookupp(rqstp, &cstate->current_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 695 | } |
| 696 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 697 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 698 | nfsd4_lookup(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 699 | struct nfsd4_lookup *lookup) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 700 | { |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 701 | return nfsd_lookup(rqstp, &cstate->current_fh, |
| 702 | lookup->lo_name, lookup->lo_len, |
| 703 | &cstate->current_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 704 | } |
| 705 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 706 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 707 | nfsd4_read(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 708 | struct nfsd4_read *read) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 709 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 710 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 711 | |
| 712 | /* no need to check permission - this will be done in nfsd_read() */ |
| 713 | |
NeilBrown | 7e06b7f | 2005-06-23 22:03:13 -0700 | [diff] [blame] | 714 | read->rd_filp = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 715 | if (read->rd_offset >= OFFSET_MAX) |
| 716 | return nfserr_inval; |
| 717 | |
J. Bruce Fields | 9b3234b | 2012-12-04 18:03:46 -0500 | [diff] [blame] | 718 | /* |
| 719 | * If we do a zero copy read, then a client will see read data |
| 720 | * that reflects the state of the file *after* performing the |
| 721 | * following compound. |
| 722 | * |
| 723 | * To ensure proper ordering, we therefore turn off zero copy if |
| 724 | * the client wants us to do more in this compound: |
| 725 | */ |
| 726 | if (!nfsd4_last_compound_op(rqstp)) |
| 727 | rqstp->rq_splice_ok = false; |
| 728 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 729 | nfs4_lock_state(); |
| 730 | /* check stateid */ |
Stanislav Kinsbursky | 5ccb006 | 2012-07-25 16:57:22 +0400 | [diff] [blame] | 731 | if ((status = nfs4_preprocess_stateid_op(SVC_NET(rqstp), |
| 732 | cstate, &read->rd_stateid, |
Benny Halevy | dd453df | 2009-04-03 08:28:41 +0300 | [diff] [blame] | 733 | RD_STATE, &read->rd_filp))) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 734 | dprintk("NFSD: nfsd4_read: couldn't process stateid!\n"); |
| 735 | goto out; |
| 736 | } |
NeilBrown | 7e06b7f | 2005-06-23 22:03:13 -0700 | [diff] [blame] | 737 | if (read->rd_filp) |
| 738 | get_file(read->rd_filp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 739 | status = nfs_ok; |
| 740 | out: |
| 741 | nfs4_unlock_state(); |
| 742 | read->rd_rqstp = rqstp; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 743 | read->rd_fhp = &cstate->current_fh; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 744 | return status; |
| 745 | } |
| 746 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 747 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 748 | nfsd4_readdir(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 749 | struct nfsd4_readdir *readdir) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 750 | { |
| 751 | u64 cookie = readdir->rd_cookie; |
| 752 | static const nfs4_verifier zeroverf; |
| 753 | |
| 754 | /* no need to check permission - this will be done in nfsd_readdir() */ |
| 755 | |
| 756 | if (readdir->rd_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1) |
| 757 | return nfserr_inval; |
| 758 | |
Andy Adamson | 7e70570 | 2009-04-03 08:29:11 +0300 | [diff] [blame] | 759 | readdir->rd_bmval[0] &= nfsd_suppattrs0(cstate->minorversion); |
| 760 | readdir->rd_bmval[1] &= nfsd_suppattrs1(cstate->minorversion); |
| 761 | readdir->rd_bmval[2] &= nfsd_suppattrs2(cstate->minorversion); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 762 | |
Bernd Schubert | 832023b | 2011-08-08 17:38:08 +0200 | [diff] [blame] | 763 | if ((cookie == 1) || (cookie == 2) || |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 764 | (cookie == 0 && memcmp(readdir->rd_verf.data, zeroverf.data, NFS4_VERIFIER_SIZE))) |
| 765 | return nfserr_bad_cookie; |
| 766 | |
| 767 | readdir->rd_rqstp = rqstp; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 768 | readdir->rd_fhp = &cstate->current_fh; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 769 | return nfs_ok; |
| 770 | } |
| 771 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 772 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 773 | nfsd4_readlink(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 774 | struct nfsd4_readlink *readlink) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 775 | { |
| 776 | readlink->rl_rqstp = rqstp; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 777 | readlink->rl_fhp = &cstate->current_fh; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 778 | return nfs_ok; |
| 779 | } |
| 780 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 781 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 782 | nfsd4_remove(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 783 | struct nfsd4_remove *remove) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 784 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 785 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 786 | |
Stanislav Kinsbursky | 5ccb006 | 2012-07-25 16:57:22 +0400 | [diff] [blame] | 787 | if (locks_in_grace(SVC_NET(rqstp))) |
NeilBrown | c815afc | 2005-06-23 22:03:00 -0700 | [diff] [blame] | 788 | return nfserr_grace; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 789 | status = nfsd_unlink(rqstp, &cstate->current_fh, 0, |
| 790 | remove->rm_name, remove->rm_namelen); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 791 | if (!status) { |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 792 | fh_unlock(&cstate->current_fh); |
| 793 | set_change_info(&remove->rm_cinfo, &cstate->current_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 794 | } |
| 795 | return status; |
| 796 | } |
| 797 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 798 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 799 | nfsd4_rename(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 800 | struct nfsd4_rename *rename) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 801 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 802 | __be32 status = nfserr_nofilehandle; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 803 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 804 | if (!cstate->save_fh.fh_dentry) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 805 | return status; |
Stanislav Kinsbursky | 5ccb006 | 2012-07-25 16:57:22 +0400 | [diff] [blame] | 806 | if (locks_in_grace(SVC_NET(rqstp)) && |
| 807 | !(cstate->save_fh.fh_export->ex_flags & NFSEXP_NOSUBTREECHECK)) |
NeilBrown | c815afc | 2005-06-23 22:03:00 -0700 | [diff] [blame] | 808 | return nfserr_grace; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 809 | status = nfsd_rename(rqstp, &cstate->save_fh, rename->rn_sname, |
| 810 | rename->rn_snamelen, &cstate->current_fh, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 811 | rename->rn_tname, rename->rn_tnamelen); |
| 812 | |
| 813 | /* the underlying filesystem returns different error's than required |
| 814 | * by NFSv4. both save_fh and current_fh have been verified.. */ |
| 815 | if (status == nfserr_isdir) |
| 816 | status = nfserr_exist; |
| 817 | else if ((status == nfserr_notdir) && |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 818 | (S_ISDIR(cstate->save_fh.fh_dentry->d_inode->i_mode) && |
| 819 | S_ISDIR(cstate->current_fh.fh_dentry->d_inode->i_mode))) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 820 | status = nfserr_exist; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 821 | |
| 822 | if (!status) { |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 823 | set_change_info(&rename->rn_sinfo, &cstate->current_fh); |
| 824 | set_change_info(&rename->rn_tinfo, &cstate->save_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 825 | } |
| 826 | return status; |
| 827 | } |
| 828 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 829 | static __be32 |
Andy Adamson | dcb488a3 | 2007-07-17 04:04:51 -0700 | [diff] [blame] | 830 | nfsd4_secinfo(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 831 | struct nfsd4_secinfo *secinfo) |
| 832 | { |
| 833 | struct svc_fh resfh; |
| 834 | struct svc_export *exp; |
| 835 | struct dentry *dentry; |
| 836 | __be32 err; |
| 837 | |
| 838 | fh_init(&resfh, NFS4_FHSIZE); |
J. Bruce Fields | 29a78a3 | 2011-04-09 11:28:53 -0400 | [diff] [blame] | 839 | err = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, NFSD_MAY_EXEC); |
| 840 | if (err) |
| 841 | return err; |
Andy Adamson | dcb488a3 | 2007-07-17 04:04:51 -0700 | [diff] [blame] | 842 | err = nfsd_lookup_dentry(rqstp, &cstate->current_fh, |
| 843 | secinfo->si_name, secinfo->si_namelen, |
| 844 | &exp, &dentry); |
| 845 | if (err) |
| 846 | return err; |
| 847 | if (dentry->d_inode == NULL) { |
| 848 | exp_put(exp); |
| 849 | err = nfserr_noent; |
| 850 | } else |
| 851 | secinfo->si_exp = exp; |
| 852 | dput(dentry); |
J. Bruce Fields | 56560b9 | 2010-12-16 09:57:15 -0500 | [diff] [blame] | 853 | if (cstate->minorversion) |
| 854 | /* See rfc 5661 section 2.6.3.1.1.8 */ |
| 855 | fh_put(&cstate->current_fh); |
Andy Adamson | dcb488a3 | 2007-07-17 04:04:51 -0700 | [diff] [blame] | 856 | return err; |
| 857 | } |
| 858 | |
| 859 | static __be32 |
J. Bruce Fields | 04f4ad1 | 2010-12-16 09:51:13 -0500 | [diff] [blame] | 860 | nfsd4_secinfo_no_name(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 861 | struct nfsd4_secinfo_no_name *sin) |
| 862 | { |
| 863 | __be32 err; |
| 864 | |
| 865 | switch (sin->sin_style) { |
| 866 | case NFS4_SECINFO_STYLE4_CURRENT_FH: |
| 867 | break; |
| 868 | case NFS4_SECINFO_STYLE4_PARENT: |
| 869 | err = nfsd4_do_lookupp(rqstp, &cstate->current_fh); |
| 870 | if (err) |
| 871 | return err; |
| 872 | break; |
| 873 | default: |
| 874 | return nfserr_inval; |
| 875 | } |
| 876 | exp_get(cstate->current_fh.fh_export); |
| 877 | sin->sin_exp = cstate->current_fh.fh_export; |
| 878 | fh_put(&cstate->current_fh); |
| 879 | return nfs_ok; |
| 880 | } |
| 881 | |
| 882 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 883 | nfsd4_setattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 884 | struct nfsd4_setattr *setattr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 885 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 886 | __be32 status = nfs_ok; |
Al Viro | 96f6f98 | 2012-04-12 23:47:00 -0400 | [diff] [blame] | 887 | int err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 888 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 889 | if (setattr->sa_iattr.ia_valid & ATTR_SIZE) { |
| 890 | nfs4_lock_state(); |
Stanislav Kinsbursky | 5ccb006 | 2012-07-25 16:57:22 +0400 | [diff] [blame] | 891 | status = nfs4_preprocess_stateid_op(SVC_NET(rqstp), cstate, |
J. Bruce Fields | 6150ef0 | 2009-02-21 13:36:16 -0800 | [diff] [blame] | 892 | &setattr->sa_stateid, WR_STATE, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 893 | nfs4_unlock_state(); |
J. Bruce Fields | 375c554 | 2006-01-18 17:43:33 -0800 | [diff] [blame] | 894 | if (status) { |
Greg Banks | 3e3b480 | 2006-10-02 02:17:41 -0700 | [diff] [blame] | 895 | dprintk("NFSD: nfsd4_setattr: couldn't process stateid!\n"); |
J. Bruce Fields | 375c554 | 2006-01-18 17:43:33 -0800 | [diff] [blame] | 896 | return status; |
| 897 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 898 | } |
Al Viro | 96f6f98 | 2012-04-12 23:47:00 -0400 | [diff] [blame] | 899 | err = fh_want_write(&cstate->current_fh); |
| 900 | if (err) |
| 901 | return nfserrno(err); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 902 | status = nfs_ok; |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 903 | |
| 904 | status = check_attr_support(rqstp, cstate, setattr->sa_bmval, |
| 905 | nfsd_attrmask); |
| 906 | if (status) |
| 907 | goto out; |
| 908 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 909 | if (setattr->sa_acl != NULL) |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 910 | status = nfsd4_set_nfs4_acl(rqstp, &cstate->current_fh, |
| 911 | setattr->sa_acl); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 912 | if (status) |
Dave Hansen | 18f335a | 2008-02-15 14:37:38 -0800 | [diff] [blame] | 913 | goto out; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 914 | status = nfsd_setattr(rqstp, &cstate->current_fh, &setattr->sa_iattr, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 915 | 0, (time_t)0); |
Dave Hansen | 18f335a | 2008-02-15 14:37:38 -0800 | [diff] [blame] | 916 | out: |
Al Viro | bad0dcf | 2011-11-23 12:03:18 -0500 | [diff] [blame] | 917 | fh_drop_write(&cstate->current_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 918 | return status; |
| 919 | } |
| 920 | |
J. Bruce Fields | ffe1137 | 2012-11-15 14:52:19 -0500 | [diff] [blame] | 921 | static int fill_in_write_vector(struct kvec *vec, struct nfsd4_write *write) |
| 922 | { |
| 923 | int i = 1; |
| 924 | int buflen = write->wr_buflen; |
| 925 | |
| 926 | vec[0].iov_base = write->wr_head.iov_base; |
| 927 | vec[0].iov_len = min_t(int, buflen, write->wr_head.iov_len); |
| 928 | buflen -= vec[0].iov_len; |
| 929 | |
| 930 | while (buflen) { |
| 931 | vec[i].iov_base = page_address(write->wr_pagelist[i - 1]); |
| 932 | vec[i].iov_len = min_t(int, PAGE_SIZE, buflen); |
| 933 | buflen -= vec[i].iov_len; |
| 934 | i++; |
| 935 | } |
| 936 | return i; |
| 937 | } |
| 938 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 939 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 940 | nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 941 | struct nfsd4_write *write) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 942 | { |
| 943 | stateid_t *stateid = &write->wr_stateid; |
| 944 | struct file *filp = NULL; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 945 | __be32 status = nfs_ok; |
David Shaw | 31dec25 | 2009-03-05 20:16:14 -0500 | [diff] [blame] | 946 | unsigned long cnt; |
J. Bruce Fields | ffe1137 | 2012-11-15 14:52:19 -0500 | [diff] [blame] | 947 | int nvecs; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 948 | |
| 949 | /* no need to check permission - this will be done in nfsd_write() */ |
| 950 | |
| 951 | if (write->wr_offset >= OFFSET_MAX) |
| 952 | return nfserr_inval; |
| 953 | |
| 954 | nfs4_lock_state(); |
Stanislav Kinsbursky | 5ccb006 | 2012-07-25 16:57:22 +0400 | [diff] [blame] | 955 | status = nfs4_preprocess_stateid_op(SVC_NET(rqstp), |
| 956 | cstate, stateid, WR_STATE, &filp); |
J. Bruce Fields | 375c554 | 2006-01-18 17:43:33 -0800 | [diff] [blame] | 957 | if (status) { |
fanchaoting | b022032 | 2013-04-01 21:07:22 +0800 | [diff] [blame] | 958 | nfs4_unlock_state(); |
J. Bruce Fields | 375c554 | 2006-01-18 17:43:33 -0800 | [diff] [blame] | 959 | dprintk("NFSD: nfsd4_write: couldn't process stateid!\n"); |
| 960 | return status; |
| 961 | } |
fanchaoting | b022032 | 2013-04-01 21:07:22 +0800 | [diff] [blame] | 962 | if (filp) |
| 963 | get_file(filp); |
| 964 | nfs4_unlock_state(); |
J. Bruce Fields | 375c554 | 2006-01-18 17:43:33 -0800 | [diff] [blame] | 965 | |
David Shaw | 31dec25 | 2009-03-05 20:16:14 -0500 | [diff] [blame] | 966 | cnt = write->wr_buflen; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 967 | write->wr_how_written = write->wr_stable_how; |
Stanislav Kinsbursky | b9c0ef8 | 2012-12-06 14:23:19 +0300 | [diff] [blame] | 968 | gen_boot_verifier(&write->wr_verifier, SVC_NET(rqstp)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 969 | |
J. Bruce Fields | ffe1137 | 2012-11-15 14:52:19 -0500 | [diff] [blame] | 970 | nvecs = fill_in_write_vector(rqstp->rq_vec, write); |
| 971 | WARN_ON_ONCE(nvecs > ARRAY_SIZE(rqstp->rq_vec)); |
| 972 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 973 | status = nfsd_write(rqstp, &cstate->current_fh, filp, |
J. Bruce Fields | ffe1137 | 2012-11-15 14:52:19 -0500 | [diff] [blame] | 974 | write->wr_offset, rqstp->rq_vec, nvecs, |
David Shaw | 31dec25 | 2009-03-05 20:16:14 -0500 | [diff] [blame] | 975 | &cnt, &write->wr_how_written); |
NeilBrown | 7e06b7f | 2005-06-23 22:03:13 -0700 | [diff] [blame] | 976 | if (filp) |
| 977 | fput(filp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 978 | |
David Shaw | 31dec25 | 2009-03-05 20:16:14 -0500 | [diff] [blame] | 979 | write->wr_bytes_written = cnt; |
| 980 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 981 | return status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 982 | } |
| 983 | |
| 984 | /* This routine never returns NFS_OK! If there are no other errors, it |
| 985 | * will return NFSERR_SAME or NFSERR_NOT_SAME depending on whether the |
| 986 | * attributes matched. VERIFY is implemented by mapping NFSERR_SAME |
| 987 | * to NFS_OK after the call; NVERIFY by mapping NFSERR_NOT_SAME to NFS_OK. |
| 988 | */ |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 989 | static __be32 |
J.Bruce Fields | c954e2a | 2006-12-13 00:35:31 -0800 | [diff] [blame] | 990 | _nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 991 | struct nfsd4_verify *verify) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 992 | { |
Al Viro | 2ebbc01 | 2006-10-19 23:28:58 -0700 | [diff] [blame] | 993 | __be32 *buf, *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 994 | int count; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 995 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 996 | |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 997 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 998 | if (status) |
| 999 | return status; |
| 1000 | |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 1001 | status = check_attr_support(rqstp, cstate, verify->ve_bmval, NULL); |
| 1002 | if (status) |
| 1003 | return status; |
| 1004 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1005 | if ((verify->ve_bmval[0] & FATTR4_WORD0_RDATTR_ERROR) |
| 1006 | || (verify->ve_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1)) |
| 1007 | return nfserr_inval; |
| 1008 | if (verify->ve_attrlen & 3) |
| 1009 | return nfserr_inval; |
| 1010 | |
| 1011 | /* count in words: |
| 1012 | * bitmap_len(1) + bitmap(2) + attr_len(1) = 4 |
| 1013 | */ |
| 1014 | count = 4 + (verify->ve_attrlen >> 2); |
| 1015 | buf = kmalloc(count << 2, GFP_KERNEL); |
| 1016 | if (!buf) |
J. Bruce Fields | 3e77246 | 2011-08-10 19:07:33 -0400 | [diff] [blame] | 1017 | return nfserr_jukebox; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1018 | |
J. Bruce Fields | 84822d0 | 2012-12-14 17:57:50 -0500 | [diff] [blame] | 1019 | p = buf; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 1020 | status = nfsd4_encode_fattr(&cstate->current_fh, |
| 1021 | cstate->current_fh.fh_export, |
J. Bruce Fields | 84822d0 | 2012-12-14 17:57:50 -0500 | [diff] [blame] | 1022 | cstate->current_fh.fh_dentry, &p, |
| 1023 | count, verify->ve_bmval, |
Frank Filz | 406a7ea | 2007-11-27 11:34:05 -0800 | [diff] [blame] | 1024 | rqstp, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1025 | |
| 1026 | /* this means that nfsd4_encode_fattr() ran out of space */ |
J. Bruce Fields | 84822d0 | 2012-12-14 17:57:50 -0500 | [diff] [blame] | 1027 | if (status == nfserr_resource) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1028 | status = nfserr_not_same; |
| 1029 | if (status) |
| 1030 | goto out_kfree; |
| 1031 | |
Benny Halevy | 95ec28c | 2009-04-03 08:29:08 +0300 | [diff] [blame] | 1032 | /* skip bitmap */ |
| 1033 | p = buf + 1 + ntohl(buf[0]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1034 | status = nfserr_not_same; |
| 1035 | if (ntohl(*p++) != verify->ve_attrlen) |
| 1036 | goto out_kfree; |
| 1037 | if (!memcmp(p, verify->ve_attrval, verify->ve_attrlen)) |
| 1038 | status = nfserr_same; |
| 1039 | |
| 1040 | out_kfree: |
| 1041 | kfree(buf); |
| 1042 | return status; |
| 1043 | } |
| 1044 | |
J.Bruce Fields | c954e2a | 2006-12-13 00:35:31 -0800 | [diff] [blame] | 1045 | static __be32 |
| 1046 | nfsd4_nverify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 1047 | struct nfsd4_verify *verify) |
| 1048 | { |
| 1049 | __be32 status; |
| 1050 | |
| 1051 | status = _nfsd4_verify(rqstp, cstate, verify); |
| 1052 | return status == nfserr_not_same ? nfs_ok : status; |
| 1053 | } |
| 1054 | |
| 1055 | static __be32 |
| 1056 | nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 1057 | struct nfsd4_verify *verify) |
| 1058 | { |
| 1059 | __be32 status; |
| 1060 | |
| 1061 | status = _nfsd4_verify(rqstp, cstate, verify); |
| 1062 | return status == nfserr_same ? nfs_ok : status; |
| 1063 | } |
| 1064 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1065 | /* |
| 1066 | * NULL call. |
| 1067 | */ |
Al Viro | 7111c66 | 2006-10-19 23:28:45 -0700 | [diff] [blame] | 1068 | static __be32 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1069 | nfsd4_proc_null(struct svc_rqst *rqstp, void *argp, void *resp) |
| 1070 | { |
| 1071 | return nfs_ok; |
| 1072 | } |
| 1073 | |
Shankar Anand | e2b2095 | 2006-07-10 04:45:44 -0700 | [diff] [blame] | 1074 | static inline void nfsd4_increment_op_stats(u32 opnum) |
| 1075 | { |
| 1076 | if (opnum >= FIRST_NFS4_OP && opnum <= LAST_NFS4_OP) |
| 1077 | nfsdstats.nfs4_opcount[opnum]++; |
| 1078 | } |
| 1079 | |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1080 | typedef __be32(*nfsd4op_func)(struct svc_rqst *, struct nfsd4_compound_state *, |
| 1081 | void *); |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1082 | typedef u32(*nfsd4op_rsize)(struct svc_rqst *, struct nfsd4_op *op); |
Tigran Mkrtchyan | 8b70484 | 2012-02-13 22:55:24 +0100 | [diff] [blame] | 1083 | typedef void(*stateid_setter)(struct nfsd4_compound_state *, void *); |
| 1084 | typedef void(*stateid_getter)(struct nfsd4_compound_state *, void *); |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1085 | |
Andy Adamson | f9bb94c4 | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1086 | enum nfsd4_op_flags { |
| 1087 | ALLOWED_WITHOUT_FH = 1 << 0, /* No current filehandle required */ |
Mi Jinlong | 5ece3ca | 2011-02-18 09:08:31 +0800 | [diff] [blame] | 1088 | ALLOWED_ON_ABSENT_FS = 1 << 1, /* ops processed on absent fs */ |
| 1089 | ALLOWED_AS_FIRST_OP = 1 << 2, /* ops reqired first in compound */ |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1090 | /* For rfc 5661 section 2.6.3.1.1: */ |
| 1091 | OP_HANDLES_WRONGSEC = 1 << 3, |
| 1092 | OP_IS_PUTFH_LIKE = 1 << 4, |
J. Bruce Fields | 1091006 | 2011-01-24 12:11:02 -0500 | [diff] [blame] | 1093 | /* |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 1094 | * These are the ops whose result size we estimate before |
| 1095 | * encoding, to avoid performing an op then not being able to |
| 1096 | * respond or cache a response. This includes writes and setattrs |
| 1097 | * as well as the operations usually called "nonidempotent": |
| 1098 | */ |
| 1099 | OP_MODIFIES_SOMETHING = 1 << 5, |
| 1100 | /* |
| 1101 | * Cache compounds containing these ops in the xid-based drc: |
J. Bruce Fields | 1091006 | 2011-01-24 12:11:02 -0500 | [diff] [blame] | 1102 | * We use the DRC for compounds containing non-idempotent |
| 1103 | * operations, *except* those that are 4.1-specific (since |
| 1104 | * sessions provide their own EOS), and except for stateful |
| 1105 | * operations other than setclientid and setclientid_confirm |
| 1106 | * (since sequence numbers provide EOS for open, lock, etc in |
| 1107 | * the v4.0 case). |
| 1108 | */ |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 1109 | OP_CACHEME = 1 << 6, |
Tigran Mkrtchyan | 8b70484 | 2012-02-13 22:55:24 +0100 | [diff] [blame] | 1110 | /* |
| 1111 | * These are ops which clear current state id. |
| 1112 | */ |
| 1113 | OP_CLEAR_STATEID = 1 << 7, |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 1114 | }; |
| 1115 | |
| 1116 | struct nfsd4_operation { |
| 1117 | nfsd4op_func op_func; |
| 1118 | u32 op_flags; |
| 1119 | char *op_name; |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1120 | /* Try to get response size before operation */ |
| 1121 | nfsd4op_rsize op_rsize_bop; |
Bryan Schumaker | 24ff99c | 2012-08-14 15:55:08 -0400 | [diff] [blame] | 1122 | stateid_getter op_get_currentstateid; |
| 1123 | stateid_setter op_set_currentstateid; |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1124 | }; |
| 1125 | |
| 1126 | static struct nfsd4_operation nfsd4_ops[]; |
| 1127 | |
Trond Myklebust | 8f199b8 | 2012-03-20 15:11:17 -0400 | [diff] [blame] | 1128 | #ifdef NFSD_DEBUG |
Adrian Bunk | f1c7f79 | 2008-08-08 19:26:42 +0300 | [diff] [blame] | 1129 | static const char *nfsd4_op_name(unsigned opnum); |
Trond Myklebust | 8f199b8 | 2012-03-20 15:11:17 -0400 | [diff] [blame] | 1130 | #endif |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1131 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1132 | /* |
J. Bruce Fields | 5771635 | 2010-04-21 12:27:19 -0400 | [diff] [blame] | 1133 | * Enforce NFSv4.1 COMPOUND ordering rules: |
Andy Adamson | f9bb94c4 | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1134 | * |
J. Bruce Fields | 5771635 | 2010-04-21 12:27:19 -0400 | [diff] [blame] | 1135 | * Also note, enforced elsewhere: |
| 1136 | * - SEQUENCE other than as first op results in |
| 1137 | * NFS4ERR_SEQUENCE_POS. (Enforced in nfsd4_sequence().) |
J. Bruce Fields | 1d1bc8f | 2010-10-04 23:12:59 -0400 | [diff] [blame] | 1138 | * - BIND_CONN_TO_SESSION must be the only op in its compound. |
| 1139 | * (Enforced in nfsd4_bind_conn_to_session().) |
J. Bruce Fields | 5771635 | 2010-04-21 12:27:19 -0400 | [diff] [blame] | 1140 | * - DESTROY_SESSION must be the final operation in a compound, if |
| 1141 | * sessionid's in SEQUENCE and DESTROY_SESSION are the same. |
| 1142 | * (Enforced in nfsd4_destroy_session().) |
Andy Adamson | f9bb94c4 | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1143 | */ |
J. Bruce Fields | 5771635 | 2010-04-21 12:27:19 -0400 | [diff] [blame] | 1144 | static __be32 nfs41_check_op_ordering(struct nfsd4_compoundargs *args) |
Andy Adamson | f9bb94c4 | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1145 | { |
J. Bruce Fields | 5771635 | 2010-04-21 12:27:19 -0400 | [diff] [blame] | 1146 | struct nfsd4_op *op = &args->ops[0]; |
| 1147 | |
| 1148 | /* These ordering requirements don't apply to NFSv4.0: */ |
| 1149 | if (args->minorversion == 0) |
| 1150 | return nfs_ok; |
| 1151 | /* This is weird, but OK, not our problem: */ |
| 1152 | if (args->opcnt == 0) |
| 1153 | return nfs_ok; |
| 1154 | if (op->status == nfserr_op_illegal) |
| 1155 | return nfs_ok; |
| 1156 | if (!(nfsd4_ops[op->opnum].op_flags & ALLOWED_AS_FIRST_OP)) |
| 1157 | return nfserr_op_not_in_session; |
| 1158 | if (op->opnum == OP_SEQUENCE) |
| 1159 | return nfs_ok; |
| 1160 | if (args->opcnt != 1) |
| 1161 | return nfserr_not_only_op; |
| 1162 | return nfs_ok; |
Andy Adamson | f9bb94c4 | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1163 | } |
| 1164 | |
J. Bruce Fields | 22b0321 | 2011-04-09 11:23:24 -0400 | [diff] [blame] | 1165 | static inline struct nfsd4_operation *OPDESC(struct nfsd4_op *op) |
| 1166 | { |
| 1167 | return &nfsd4_ops[op->opnum]; |
| 1168 | } |
| 1169 | |
J. Bruce Fields | 1091006 | 2011-01-24 12:11:02 -0500 | [diff] [blame] | 1170 | bool nfsd4_cache_this_op(struct nfsd4_op *op) |
| 1171 | { |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 1172 | return OPDESC(op)->op_flags & OP_CACHEME; |
J. Bruce Fields | 1091006 | 2011-01-24 12:11:02 -0500 | [diff] [blame] | 1173 | } |
| 1174 | |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1175 | static bool need_wrongsec_check(struct svc_rqst *rqstp) |
| 1176 | { |
| 1177 | struct nfsd4_compoundres *resp = rqstp->rq_resp; |
| 1178 | struct nfsd4_compoundargs *argp = rqstp->rq_argp; |
| 1179 | struct nfsd4_op *this = &argp->ops[resp->opcnt - 1]; |
| 1180 | struct nfsd4_op *next = &argp->ops[resp->opcnt]; |
| 1181 | struct nfsd4_operation *thisd; |
| 1182 | struct nfsd4_operation *nextd; |
| 1183 | |
| 1184 | thisd = OPDESC(this); |
| 1185 | /* |
| 1186 | * Most ops check wronsec on our own; only the putfh-like ops |
| 1187 | * have special rules. |
| 1188 | */ |
| 1189 | if (!(thisd->op_flags & OP_IS_PUTFH_LIKE)) |
| 1190 | return false; |
| 1191 | /* |
| 1192 | * rfc 5661 2.6.3.1.1.6: don't bother erroring out a |
| 1193 | * put-filehandle operation if we're not going to use the |
| 1194 | * result: |
| 1195 | */ |
| 1196 | if (argp->opcnt == resp->opcnt) |
| 1197 | return false; |
| 1198 | |
| 1199 | nextd = OPDESC(next); |
| 1200 | /* |
| 1201 | * Rest of 2.6.3.1.1: certain operations will return WRONGSEC |
| 1202 | * errors themselves as necessary; others should check for them |
| 1203 | * now: |
| 1204 | */ |
| 1205 | return !(nextd->op_flags & OP_HANDLES_WRONGSEC); |
| 1206 | } |
| 1207 | |
Andy Adamson | f9bb94c4 | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1208 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1209 | * COMPOUND call. |
| 1210 | */ |
Al Viro | 7111c66 | 2006-10-19 23:28:45 -0700 | [diff] [blame] | 1211 | static __be32 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1212 | nfsd4_proc_compound(struct svc_rqst *rqstp, |
| 1213 | struct nfsd4_compoundargs *args, |
| 1214 | struct nfsd4_compoundres *resp) |
| 1215 | { |
| 1216 | struct nfsd4_op *op; |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1217 | struct nfsd4_operation *opdesc; |
Andy Adamson | e354d57 | 2009-03-28 11:30:52 +0300 | [diff] [blame] | 1218 | struct nfsd4_compound_state *cstate = &resp->cstate; |
J.Bruce Fields | e571019 | 2006-12-13 00:35:20 -0800 | [diff] [blame] | 1219 | int slack_bytes; |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1220 | u32 plen = 0; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 1221 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1222 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1223 | resp->xbuf = &rqstp->rq_res; |
Andy Adamson | e354d57 | 2009-03-28 11:30:52 +0300 | [diff] [blame] | 1224 | resp->p = rqstp->rq_res.head[0].iov_base + |
| 1225 | rqstp->rq_res.head[0].iov_len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1226 | resp->tagp = resp->p; |
| 1227 | /* reserve space for: taglen, tag, and opcnt */ |
| 1228 | resp->p += 2 + XDR_QUADLEN(args->taglen); |
| 1229 | resp->end = rqstp->rq_res.head[0].iov_base + PAGE_SIZE; |
| 1230 | resp->taglen = args->taglen; |
| 1231 | resp->tag = args->tag; |
| 1232 | resp->opcnt = 0; |
| 1233 | resp->rqstp = rqstp; |
Andy Adamson | d87a8ad | 2009-04-03 08:28:53 +0300 | [diff] [blame] | 1234 | resp->cstate.minorversion = args->minorversion; |
Andy Adamson | e354d57 | 2009-03-28 11:30:52 +0300 | [diff] [blame] | 1235 | resp->cstate.replay_owner = NULL; |
J. Bruce Fields | 26c0c75 | 2010-04-24 15:35:43 -0400 | [diff] [blame] | 1236 | resp->cstate.session = NULL; |
Andy Adamson | e354d57 | 2009-03-28 11:30:52 +0300 | [diff] [blame] | 1237 | fh_init(&resp->cstate.current_fh, NFS4_FHSIZE); |
| 1238 | fh_init(&resp->cstate.save_fh, NFS4_FHSIZE); |
NeilBrown | 8ff30fa | 2010-08-12 17:04:07 +1000 | [diff] [blame] | 1239 | /* |
| 1240 | * Don't use the deferral mechanism for NFSv4; compounds make it |
| 1241 | * too hard to avoid non-idempotency problems. |
| 1242 | */ |
| 1243 | rqstp->rq_usedeferral = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1244 | |
| 1245 | /* |
| 1246 | * According to RFC3010, this takes precedence over all other errors. |
| 1247 | */ |
| 1248 | status = nfserr_minor_vers_mismatch; |
Benny Halevy | 8daf220 | 2009-04-03 08:28:59 +0300 | [diff] [blame] | 1249 | if (args->minorversion > nfsd_supported_minorversion) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1250 | goto out; |
| 1251 | |
J. Bruce Fields | 5771635 | 2010-04-21 12:27:19 -0400 | [diff] [blame] | 1252 | status = nfs41_check_op_ordering(args); |
| 1253 | if (status) { |
Andy Adamson | f9bb94c4 | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1254 | op = &args->ops[0]; |
J. Bruce Fields | 5771635 | 2010-04-21 12:27:19 -0400 | [diff] [blame] | 1255 | op->status = status; |
Andy Adamson | f9bb94c4 | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1256 | goto encode_op; |
| 1257 | } |
| 1258 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1259 | while (!status && resp->opcnt < args->opcnt) { |
| 1260 | op = &args->ops[resp->opcnt++]; |
| 1261 | |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1262 | dprintk("nfsv4 compound op #%d/%d: %d (%s)\n", |
| 1263 | resp->opcnt, args->opcnt, op->opnum, |
| 1264 | nfsd4_op_name(op->opnum)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1265 | /* |
| 1266 | * The XDR decode routines may have pre-set op->status; |
| 1267 | * for example, if there is a miscellaneous XDR error |
| 1268 | * it will be set to nfserr_bad_xdr. |
| 1269 | */ |
J. Bruce Fields | 9d313b1 | 2013-02-28 12:51:49 -0800 | [diff] [blame] | 1270 | if (op->status) { |
| 1271 | if (op->opnum == OP_OPEN) |
| 1272 | op->status = nfsd4_open_omfg(rqstp, cstate, op); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1273 | goto encode_op; |
J. Bruce Fields | 9d313b1 | 2013-02-28 12:51:49 -0800 | [diff] [blame] | 1274 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1275 | |
| 1276 | /* We must be able to encode a successful response to |
| 1277 | * this operation, with enough room left over to encode a |
| 1278 | * failed response to the next operation. If we don't |
| 1279 | * have enough room, fail with ERR_RESOURCE. |
| 1280 | */ |
J.Bruce Fields | e571019 | 2006-12-13 00:35:20 -0800 | [diff] [blame] | 1281 | slack_bytes = (char *)resp->end - (char *)resp->p; |
| 1282 | if (slack_bytes < COMPOUND_SLACK_SPACE |
| 1283 | + COMPOUND_ERR_SLACK_SPACE) { |
| 1284 | BUG_ON(slack_bytes < COMPOUND_ERR_SLACK_SPACE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1285 | op->status = nfserr_resource; |
| 1286 | goto encode_op; |
| 1287 | } |
| 1288 | |
J. Bruce Fields | 22b0321 | 2011-04-09 11:23:24 -0400 | [diff] [blame] | 1289 | opdesc = OPDESC(op); |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1290 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 1291 | if (!cstate->current_fh.fh_dentry) { |
J.Bruce Fields | 27d630e | 2006-12-13 00:35:43 -0800 | [diff] [blame] | 1292 | if (!(opdesc->op_flags & ALLOWED_WITHOUT_FH)) { |
J.Bruce Fields | 42ca099 | 2006-10-04 02:16:20 -0700 | [diff] [blame] | 1293 | op->status = nfserr_nofilehandle; |
| 1294 | goto encode_op; |
| 1295 | } |
J.Bruce Fields | eeac294 | 2006-12-13 00:35:39 -0800 | [diff] [blame] | 1296 | } else if (cstate->current_fh.fh_export->ex_fslocs.migrated && |
| 1297 | !(opdesc->op_flags & ALLOWED_ON_ABSENT_FS)) { |
J.Bruce Fields | 42ca099 | 2006-10-04 02:16:20 -0700 | [diff] [blame] | 1298 | op->status = nfserr_moved; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1299 | goto encode_op; |
| 1300 | } |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1301 | |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1302 | /* If op is non-idempotent */ |
| 1303 | if (opdesc->op_flags & OP_MODIFIES_SOMETHING) { |
| 1304 | plen = opdesc->op_rsize_bop(rqstp, op); |
| 1305 | op->status = nfsd4_check_resp_size(resp, plen); |
| 1306 | } |
| 1307 | |
| 1308 | if (op->status) |
| 1309 | goto encode_op; |
| 1310 | |
J. Bruce Fields | b600de7 | 2013-02-28 11:55:46 -0800 | [diff] [blame] | 1311 | if (opdesc->op_get_currentstateid) |
| 1312 | opdesc->op_get_currentstateid(cstate, &op->u); |
| 1313 | op->status = opdesc->op_func(rqstp, cstate, &op->u); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1314 | |
Tigran Mkrtchyan | 8b70484 | 2012-02-13 22:55:24 +0100 | [diff] [blame] | 1315 | if (!op->status) { |
| 1316 | if (opdesc->op_set_currentstateid) |
| 1317 | opdesc->op_set_currentstateid(cstate, &op->u); |
| 1318 | |
| 1319 | if (opdesc->op_flags & OP_CLEAR_STATEID) |
Tigran Mkrtchyan | 37c593c | 2012-02-13 22:55:32 +0100 | [diff] [blame] | 1320 | clear_current_stateid(cstate); |
Tigran Mkrtchyan | 8b70484 | 2012-02-13 22:55:24 +0100 | [diff] [blame] | 1321 | |
| 1322 | if (need_wrongsec_check(rqstp)) |
| 1323 | op->status = check_nfsd_access(cstate->current_fh.fh_export, rqstp); |
| 1324 | } |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1325 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1326 | encode_op: |
Andy Adamson | 49557cc | 2009-07-23 19:02:16 -0400 | [diff] [blame] | 1327 | /* Only from SEQUENCE */ |
Andy Adamson | da3846a | 2009-04-03 08:28:22 +0300 | [diff] [blame] | 1328 | if (resp->cstate.status == nfserr_replay_cache) { |
| 1329 | dprintk("%s NFS4.1 replay from cache\n", __func__); |
Andy Adamson | abfabf8 | 2009-07-23 19:02:18 -0400 | [diff] [blame] | 1330 | status = op->status; |
Andy Adamson | da3846a | 2009-04-03 08:28:22 +0300 | [diff] [blame] | 1331 | goto out; |
| 1332 | } |
Al Viro | a90b061 | 2006-10-19 23:29:03 -0700 | [diff] [blame] | 1333 | if (op->status == nfserr_replay_me) { |
J.Bruce Fields | a4f1706a9 | 2006-12-13 00:35:28 -0800 | [diff] [blame] | 1334 | op->replay = &cstate->replay_owner->so_replay; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1335 | nfsd4_encode_replay(resp, op); |
| 1336 | status = op->status = op->replay->rp_status; |
| 1337 | } else { |
| 1338 | nfsd4_encode_operation(resp, op); |
| 1339 | status = op->status; |
| 1340 | } |
Benny Halevy | 0407717 | 2008-12-15 19:40:49 +0200 | [diff] [blame] | 1341 | |
| 1342 | dprintk("nfsv4 compound op %p opcnt %d #%d: %d: status %d\n", |
| 1343 | args->ops, args->opcnt, resp->opcnt, op->opnum, |
| 1344 | be32_to_cpu(status)); |
| 1345 | |
J.Bruce Fields | a4f1706a9 | 2006-12-13 00:35:28 -0800 | [diff] [blame] | 1346 | if (cstate->replay_owner) { |
J. Bruce Fields | 5ec094c | 2011-08-30 17:02:48 -0400 | [diff] [blame] | 1347 | nfs4_unlock_state(); |
J.Bruce Fields | a4f1706a9 | 2006-12-13 00:35:28 -0800 | [diff] [blame] | 1348 | cstate->replay_owner = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1349 | } |
NeilBrown | 7e06b7f | 2005-06-23 22:03:13 -0700 | [diff] [blame] | 1350 | /* XXX Ugh, we need to get rid of this kind of special case: */ |
| 1351 | if (op->opnum == OP_READ && op->u.read.rd_filp) |
| 1352 | fput(op->u.read.rd_filp); |
Shankar Anand | e2b2095 | 2006-07-10 04:45:44 -0700 | [diff] [blame] | 1353 | |
| 1354 | nfsd4_increment_op_stats(op->opnum); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1355 | } |
| 1356 | |
Andy Adamson | da3846a | 2009-04-03 08:28:22 +0300 | [diff] [blame] | 1357 | resp->cstate.status = status; |
Andy Adamson | e354d57 | 2009-03-28 11:30:52 +0300 | [diff] [blame] | 1358 | fh_put(&resp->cstate.current_fh); |
| 1359 | fh_put(&resp->cstate.save_fh); |
| 1360 | BUG_ON(resp->cstate.replay_owner); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1361 | out: |
Andy Adamson | 2f42587 | 2009-04-03 08:27:32 +0300 | [diff] [blame] | 1362 | /* Reset deferral mechanism for RPC deferrals */ |
| 1363 | rqstp->rq_usedeferral = 1; |
J. Bruce Fields | 3b12cd9 | 2008-05-05 17:17:44 -0400 | [diff] [blame] | 1364 | dprintk("nfsv4 compound returned %d\n", ntohl(status)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1365 | return status; |
| 1366 | } |
| 1367 | |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1368 | #define op_encode_hdr_size (2) |
| 1369 | #define op_encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) |
| 1370 | #define op_encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) |
| 1371 | #define op_encode_change_info_maxsz (5) |
| 1372 | #define nfs4_fattr_bitmap_maxsz (4) |
| 1373 | |
| 1374 | #define op_encode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) |
| 1375 | #define op_encode_lock_denied_maxsz (8 + op_encode_lockowner_maxsz) |
| 1376 | |
| 1377 | #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) |
| 1378 | |
| 1379 | #define op_encode_ace_maxsz (3 + nfs4_owner_maxsz) |
| 1380 | #define op_encode_delegation_maxsz (1 + op_encode_stateid_maxsz + 1 + \ |
| 1381 | op_encode_ace_maxsz) |
| 1382 | |
| 1383 | #define op_encode_channel_attrs_maxsz (6 + 1 + 1) |
| 1384 | |
| 1385 | static inline u32 nfsd4_only_status_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1386 | { |
| 1387 | return (op_encode_hdr_size) * sizeof(__be32); |
| 1388 | } |
| 1389 | |
| 1390 | static inline u32 nfsd4_status_stateid_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1391 | { |
| 1392 | return (op_encode_hdr_size + op_encode_stateid_maxsz)* sizeof(__be32); |
| 1393 | } |
| 1394 | |
| 1395 | static inline u32 nfsd4_commit_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1396 | { |
| 1397 | return (op_encode_hdr_size + op_encode_verifier_maxsz) * sizeof(__be32); |
| 1398 | } |
| 1399 | |
| 1400 | static inline u32 nfsd4_create_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1401 | { |
| 1402 | return (op_encode_hdr_size + op_encode_change_info_maxsz |
| 1403 | + nfs4_fattr_bitmap_maxsz) * sizeof(__be32); |
| 1404 | } |
| 1405 | |
| 1406 | static inline u32 nfsd4_link_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1407 | { |
| 1408 | return (op_encode_hdr_size + op_encode_change_info_maxsz) |
| 1409 | * sizeof(__be32); |
| 1410 | } |
| 1411 | |
| 1412 | static inline u32 nfsd4_lock_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1413 | { |
| 1414 | return (op_encode_hdr_size + op_encode_lock_denied_maxsz) |
| 1415 | * sizeof(__be32); |
| 1416 | } |
| 1417 | |
| 1418 | static inline u32 nfsd4_open_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1419 | { |
| 1420 | return (op_encode_hdr_size + op_encode_stateid_maxsz |
| 1421 | + op_encode_change_info_maxsz + 1 |
| 1422 | + nfs4_fattr_bitmap_maxsz |
| 1423 | + op_encode_delegation_maxsz) * sizeof(__be32); |
| 1424 | } |
| 1425 | |
| 1426 | static inline u32 nfsd4_read_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1427 | { |
| 1428 | u32 maxcount = 0, rlen = 0; |
| 1429 | |
| 1430 | maxcount = svc_max_payload(rqstp); |
| 1431 | rlen = op->u.read.rd_length; |
| 1432 | |
| 1433 | if (rlen > maxcount) |
| 1434 | rlen = maxcount; |
| 1435 | |
| 1436 | return (op_encode_hdr_size + 2) * sizeof(__be32) + rlen; |
| 1437 | } |
| 1438 | |
| 1439 | static inline u32 nfsd4_readdir_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1440 | { |
| 1441 | u32 rlen = op->u.readdir.rd_maxcount; |
| 1442 | |
| 1443 | if (rlen > PAGE_SIZE) |
| 1444 | rlen = PAGE_SIZE; |
| 1445 | |
| 1446 | return (op_encode_hdr_size + op_encode_verifier_maxsz) |
| 1447 | * sizeof(__be32) + rlen; |
| 1448 | } |
| 1449 | |
| 1450 | static inline u32 nfsd4_remove_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1451 | { |
| 1452 | return (op_encode_hdr_size + op_encode_change_info_maxsz) |
| 1453 | * sizeof(__be32); |
| 1454 | } |
| 1455 | |
| 1456 | static inline u32 nfsd4_rename_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1457 | { |
| 1458 | return (op_encode_hdr_size + op_encode_change_info_maxsz |
| 1459 | + op_encode_change_info_maxsz) * sizeof(__be32); |
| 1460 | } |
| 1461 | |
| 1462 | static inline u32 nfsd4_setattr_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1463 | { |
| 1464 | return (op_encode_hdr_size + nfs4_fattr_bitmap_maxsz) * sizeof(__be32); |
| 1465 | } |
| 1466 | |
| 1467 | static inline u32 nfsd4_setclientid_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1468 | { |
| 1469 | return (op_encode_hdr_size + 2 + 1024) * sizeof(__be32); |
| 1470 | } |
| 1471 | |
| 1472 | static inline u32 nfsd4_write_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1473 | { |
| 1474 | return (op_encode_hdr_size + op_encode_verifier_maxsz) * sizeof(__be32); |
| 1475 | } |
| 1476 | |
| 1477 | static inline u32 nfsd4_exchange_id_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1478 | { |
| 1479 | return (op_encode_hdr_size + 2 + 1 + /* eir_clientid, eir_sequenceid */\ |
| 1480 | 1 + 1 + 0 + /* eir_flags, spr_how, SP4_NONE (for now) */\ |
| 1481 | 2 + /*eir_server_owner.so_minor_id */\ |
| 1482 | /* eir_server_owner.so_major_id<> */\ |
| 1483 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 +\ |
| 1484 | /* eir_server_scope<> */\ |
| 1485 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 +\ |
| 1486 | 1 + /* eir_server_impl_id array length */\ |
| 1487 | 0 /* ignored eir_server_impl_id contents */) * sizeof(__be32); |
| 1488 | } |
| 1489 | |
| 1490 | static inline u32 nfsd4_bind_conn_to_session_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1491 | { |
| 1492 | return (op_encode_hdr_size + \ |
| 1493 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + /* bctsr_sessid */\ |
| 1494 | 2 /* bctsr_dir, use_conn_in_rdma_mode */) * sizeof(__be32); |
| 1495 | } |
| 1496 | |
| 1497 | static inline u32 nfsd4_create_session_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1498 | { |
| 1499 | return (op_encode_hdr_size + \ |
| 1500 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + /* sessionid */\ |
| 1501 | 2 + /* csr_sequence, csr_flags */\ |
| 1502 | op_encode_channel_attrs_maxsz + \ |
| 1503 | op_encode_channel_attrs_maxsz) * sizeof(__be32); |
| 1504 | } |
| 1505 | |
Benny Halevy | 2076601 | 2009-03-28 11:32:05 +0300 | [diff] [blame] | 1506 | static struct nfsd4_operation nfsd4_ops[] = { |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1507 | [OP_ACCESS] = { |
| 1508 | .op_func = (nfsd4op_func)nfsd4_access, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1509 | .op_name = "OP_ACCESS", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1510 | }, |
| 1511 | [OP_CLOSE] = { |
| 1512 | .op_func = (nfsd4op_func)nfsd4_close, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1513 | .op_flags = OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1514 | .op_name = "OP_CLOSE", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1515 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize, |
Tigran Mkrtchyan | 8b70484 | 2012-02-13 22:55:24 +0100 | [diff] [blame] | 1516 | .op_get_currentstateid = (stateid_getter)nfsd4_get_closestateid, |
| 1517 | .op_set_currentstateid = (stateid_setter)nfsd4_set_closestateid, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1518 | }, |
| 1519 | [OP_COMMIT] = { |
| 1520 | .op_func = (nfsd4op_func)nfsd4_commit, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1521 | .op_flags = OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1522 | .op_name = "OP_COMMIT", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1523 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_commit_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1524 | }, |
| 1525 | [OP_CREATE] = { |
| 1526 | .op_func = (nfsd4op_func)nfsd4_create, |
Tigran Mkrtchyan | d147105 | 2012-02-13 22:55:29 +0100 | [diff] [blame] | 1527 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME | OP_CLEAR_STATEID, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1528 | .op_name = "OP_CREATE", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1529 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_create_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1530 | }, |
| 1531 | [OP_DELEGRETURN] = { |
| 1532 | .op_func = (nfsd4op_func)nfsd4_delegreturn, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1533 | .op_flags = OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1534 | .op_name = "OP_DELEGRETURN", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1535 | .op_rsize_bop = nfsd4_only_status_rsize, |
Tigran Mkrtchyan | 9428fe1 | 2012-02-13 22:55:31 +0100 | [diff] [blame] | 1536 | .op_get_currentstateid = (stateid_getter)nfsd4_get_delegreturnstateid, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1537 | }, |
| 1538 | [OP_GETATTR] = { |
| 1539 | .op_func = (nfsd4op_func)nfsd4_getattr, |
J.Bruce Fields | eeac294 | 2006-12-13 00:35:39 -0800 | [diff] [blame] | 1540 | .op_flags = ALLOWED_ON_ABSENT_FS, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1541 | .op_name = "OP_GETATTR", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1542 | }, |
| 1543 | [OP_GETFH] = { |
| 1544 | .op_func = (nfsd4op_func)nfsd4_getfh, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1545 | .op_name = "OP_GETFH", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1546 | }, |
| 1547 | [OP_LINK] = { |
| 1548 | .op_func = (nfsd4op_func)nfsd4_link, |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 1549 | .op_flags = ALLOWED_ON_ABSENT_FS | OP_MODIFIES_SOMETHING |
| 1550 | | OP_CACHEME, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1551 | .op_name = "OP_LINK", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1552 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_link_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1553 | }, |
| 1554 | [OP_LOCK] = { |
| 1555 | .op_func = (nfsd4op_func)nfsd4_lock, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1556 | .op_flags = OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1557 | .op_name = "OP_LOCK", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1558 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_lock_rsize, |
Tigran Mkrtchyan | 62cd4a5 | 2012-02-13 22:55:25 +0100 | [diff] [blame] | 1559 | .op_set_currentstateid = (stateid_setter)nfsd4_set_lockstateid, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1560 | }, |
| 1561 | [OP_LOCKT] = { |
| 1562 | .op_func = (nfsd4op_func)nfsd4_lockt, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1563 | .op_name = "OP_LOCKT", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1564 | }, |
| 1565 | [OP_LOCKU] = { |
| 1566 | .op_func = (nfsd4op_func)nfsd4_locku, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1567 | .op_flags = OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1568 | .op_name = "OP_LOCKU", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1569 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize, |
Tigran Mkrtchyan | 62cd4a5 | 2012-02-13 22:55:25 +0100 | [diff] [blame] | 1570 | .op_get_currentstateid = (stateid_getter)nfsd4_get_lockustateid, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1571 | }, |
| 1572 | [OP_LOOKUP] = { |
| 1573 | .op_func = (nfsd4op_func)nfsd4_lookup, |
Tigran Mkrtchyan | d147105 | 2012-02-13 22:55:29 +0100 | [diff] [blame] | 1574 | .op_flags = OP_HANDLES_WRONGSEC | OP_CLEAR_STATEID, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1575 | .op_name = "OP_LOOKUP", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1576 | }, |
| 1577 | [OP_LOOKUPP] = { |
| 1578 | .op_func = (nfsd4op_func)nfsd4_lookupp, |
Tigran Mkrtchyan | d147105 | 2012-02-13 22:55:29 +0100 | [diff] [blame] | 1579 | .op_flags = OP_HANDLES_WRONGSEC | OP_CLEAR_STATEID, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1580 | .op_name = "OP_LOOKUPP", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1581 | }, |
| 1582 | [OP_NVERIFY] = { |
| 1583 | .op_func = (nfsd4op_func)nfsd4_nverify, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1584 | .op_name = "OP_NVERIFY", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1585 | }, |
| 1586 | [OP_OPEN] = { |
| 1587 | .op_func = (nfsd4op_func)nfsd4_open, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1588 | .op_flags = OP_HANDLES_WRONGSEC | OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1589 | .op_name = "OP_OPEN", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1590 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_open_rsize, |
Tigran Mkrtchyan | 8b70484 | 2012-02-13 22:55:24 +0100 | [diff] [blame] | 1591 | .op_set_currentstateid = (stateid_setter)nfsd4_set_openstateid, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1592 | }, |
| 1593 | [OP_OPEN_CONFIRM] = { |
| 1594 | .op_func = (nfsd4op_func)nfsd4_open_confirm, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1595 | .op_flags = OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1596 | .op_name = "OP_OPEN_CONFIRM", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1597 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1598 | }, |
| 1599 | [OP_OPEN_DOWNGRADE] = { |
| 1600 | .op_func = (nfsd4op_func)nfsd4_open_downgrade, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1601 | .op_flags = OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1602 | .op_name = "OP_OPEN_DOWNGRADE", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1603 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize, |
Tigran Mkrtchyan | 9428fe1 | 2012-02-13 22:55:31 +0100 | [diff] [blame] | 1604 | .op_get_currentstateid = (stateid_getter)nfsd4_get_opendowngradestateid, |
| 1605 | .op_set_currentstateid = (stateid_setter)nfsd4_set_opendowngradestateid, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1606 | }, |
| 1607 | [OP_PUTFH] = { |
| 1608 | .op_func = (nfsd4op_func)nfsd4_putfh, |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1609 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
Tigran Mkrtchyan | 80e01cc | 2012-02-13 22:55:27 +0100 | [diff] [blame] | 1610 | | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING |
| 1611 | | OP_CLEAR_STATEID, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1612 | .op_name = "OP_PUTFH", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1613 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1614 | }, |
J.Bruce Fields | eeac294 | 2006-12-13 00:35:39 -0800 | [diff] [blame] | 1615 | [OP_PUTPUBFH] = { |
J. Bruce Fields | a1c8c4d | 2009-03-09 12:17:29 -0400 | [diff] [blame] | 1616 | .op_func = (nfsd4op_func)nfsd4_putrootfh, |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1617 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
Tigran Mkrtchyan | 80e01cc | 2012-02-13 22:55:27 +0100 | [diff] [blame] | 1618 | | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING |
| 1619 | | OP_CLEAR_STATEID, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1620 | .op_name = "OP_PUTPUBFH", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1621 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
J.Bruce Fields | eeac294 | 2006-12-13 00:35:39 -0800 | [diff] [blame] | 1622 | }, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1623 | [OP_PUTROOTFH] = { |
| 1624 | .op_func = (nfsd4op_func)nfsd4_putrootfh, |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1625 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
Tigran Mkrtchyan | 80e01cc | 2012-02-13 22:55:27 +0100 | [diff] [blame] | 1626 | | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING |
| 1627 | | OP_CLEAR_STATEID, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1628 | .op_name = "OP_PUTROOTFH", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1629 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1630 | }, |
| 1631 | [OP_READ] = { |
| 1632 | .op_func = (nfsd4op_func)nfsd4_read, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1633 | .op_flags = OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1634 | .op_name = "OP_READ", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1635 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_read_rsize, |
Tigran Mkrtchyan | 30813e2 | 2012-02-13 22:55:26 +0100 | [diff] [blame] | 1636 | .op_get_currentstateid = (stateid_getter)nfsd4_get_readstateid, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1637 | }, |
| 1638 | [OP_READDIR] = { |
| 1639 | .op_func = (nfsd4op_func)nfsd4_readdir, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1640 | .op_flags = OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1641 | .op_name = "OP_READDIR", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1642 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_readdir_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1643 | }, |
| 1644 | [OP_READLINK] = { |
| 1645 | .op_func = (nfsd4op_func)nfsd4_readlink, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1646 | .op_name = "OP_READLINK", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1647 | }, |
| 1648 | [OP_REMOVE] = { |
| 1649 | .op_func = (nfsd4op_func)nfsd4_remove, |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 1650 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1651 | .op_name = "OP_REMOVE", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1652 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_remove_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1653 | }, |
| 1654 | [OP_RENAME] = { |
| 1655 | .op_func = (nfsd4op_func)nfsd4_rename, |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 1656 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1657 | .op_name = "OP_RENAME", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1658 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_rename_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1659 | }, |
| 1660 | [OP_RENEW] = { |
| 1661 | .op_func = (nfsd4op_func)nfsd4_renew, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1662 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
| 1663 | | OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1664 | .op_name = "OP_RENEW", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1665 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
| 1666 | |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1667 | }, |
| 1668 | [OP_RESTOREFH] = { |
| 1669 | .op_func = (nfsd4op_func)nfsd4_restorefh, |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1670 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1671 | | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1672 | .op_name = "OP_RESTOREFH", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1673 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1674 | }, |
| 1675 | [OP_SAVEFH] = { |
| 1676 | .op_func = (nfsd4op_func)nfsd4_savefh, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1677 | .op_flags = OP_HANDLES_WRONGSEC | OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1678 | .op_name = "OP_SAVEFH", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1679 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1680 | }, |
Andy Adamson | dcb488a3 | 2007-07-17 04:04:51 -0700 | [diff] [blame] | 1681 | [OP_SECINFO] = { |
| 1682 | .op_func = (nfsd4op_func)nfsd4_secinfo, |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1683 | .op_flags = OP_HANDLES_WRONGSEC, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1684 | .op_name = "OP_SECINFO", |
Andy Adamson | dcb488a3 | 2007-07-17 04:04:51 -0700 | [diff] [blame] | 1685 | }, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1686 | [OP_SETATTR] = { |
| 1687 | .op_func = (nfsd4op_func)nfsd4_setattr, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1688 | .op_name = "OP_SETATTR", |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 1689 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1690 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_setattr_rsize, |
Tigran Mkrtchyan | 1e97b51 | 2012-02-13 22:55:30 +0100 | [diff] [blame] | 1691 | .op_get_currentstateid = (stateid_getter)nfsd4_get_setattrstateid, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1692 | }, |
| 1693 | [OP_SETCLIENTID] = { |
| 1694 | .op_func = (nfsd4op_func)nfsd4_setclientid, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1695 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 1696 | | OP_MODIFIES_SOMETHING | OP_CACHEME, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1697 | .op_name = "OP_SETCLIENTID", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1698 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_setclientid_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1699 | }, |
| 1700 | [OP_SETCLIENTID_CONFIRM] = { |
| 1701 | .op_func = (nfsd4op_func)nfsd4_setclientid_confirm, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1702 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 1703 | | OP_MODIFIES_SOMETHING | OP_CACHEME, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1704 | .op_name = "OP_SETCLIENTID_CONFIRM", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1705 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1706 | }, |
| 1707 | [OP_VERIFY] = { |
| 1708 | .op_func = (nfsd4op_func)nfsd4_verify, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1709 | .op_name = "OP_VERIFY", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1710 | }, |
| 1711 | [OP_WRITE] = { |
| 1712 | .op_func = (nfsd4op_func)nfsd4_write, |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 1713 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1714 | .op_name = "OP_WRITE", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1715 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_write_rsize, |
Tigran Mkrtchyan | 30813e2 | 2012-02-13 22:55:26 +0100 | [diff] [blame] | 1716 | .op_get_currentstateid = (stateid_getter)nfsd4_get_writestateid, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1717 | }, |
| 1718 | [OP_RELEASE_LOCKOWNER] = { |
| 1719 | .op_func = (nfsd4op_func)nfsd4_release_lockowner, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1720 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
| 1721 | | OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1722 | .op_name = "OP_RELEASE_LOCKOWNER", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1723 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1724 | }, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 1725 | |
| 1726 | /* NFSv4.1 operations */ |
| 1727 | [OP_EXCHANGE_ID] = { |
| 1728 | .op_func = (nfsd4op_func)nfsd4_exchange_id, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1729 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
| 1730 | | OP_MODIFIES_SOMETHING, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 1731 | .op_name = "OP_EXCHANGE_ID", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1732 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_exchange_id_rsize, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 1733 | }, |
J. Bruce Fields | cb73a9f | 2012-11-01 18:09:48 -0400 | [diff] [blame] | 1734 | [OP_BACKCHANNEL_CTL] = { |
| 1735 | .op_func = (nfsd4op_func)nfsd4_backchannel_ctl, |
| 1736 | .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING, |
| 1737 | .op_name = "OP_BACKCHANNEL_CTL", |
| 1738 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
| 1739 | }, |
J. Bruce Fields | 1d1bc8f | 2010-10-04 23:12:59 -0400 | [diff] [blame] | 1740 | [OP_BIND_CONN_TO_SESSION] = { |
| 1741 | .op_func = (nfsd4op_func)nfsd4_bind_conn_to_session, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1742 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
| 1743 | | OP_MODIFIES_SOMETHING, |
J. Bruce Fields | 1d1bc8f | 2010-10-04 23:12:59 -0400 | [diff] [blame] | 1744 | .op_name = "OP_BIND_CONN_TO_SESSION", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1745 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_bind_conn_to_session_rsize, |
J. Bruce Fields | 1d1bc8f | 2010-10-04 23:12:59 -0400 | [diff] [blame] | 1746 | }, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 1747 | [OP_CREATE_SESSION] = { |
| 1748 | .op_func = (nfsd4op_func)nfsd4_create_session, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1749 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
| 1750 | | OP_MODIFIES_SOMETHING, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 1751 | .op_name = "OP_CREATE_SESSION", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1752 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_create_session_rsize, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 1753 | }, |
| 1754 | [OP_DESTROY_SESSION] = { |
| 1755 | .op_func = (nfsd4op_func)nfsd4_destroy_session, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1756 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
| 1757 | | OP_MODIFIES_SOMETHING, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 1758 | .op_name = "OP_DESTROY_SESSION", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1759 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 1760 | }, |
| 1761 | [OP_SEQUENCE] = { |
| 1762 | .op_func = (nfsd4op_func)nfsd4_sequence, |
Andy Adamson | f9bb94c4 | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1763 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 1764 | .op_name = "OP_SEQUENCE", |
| 1765 | }, |
Benny Halevy | 094b5d7 | 2011-06-16 11:39:10 -0400 | [diff] [blame] | 1766 | [OP_DESTROY_CLIENTID] = { |
Mi Jinlong | 345c284 | 2011-10-20 17:51:39 +0800 | [diff] [blame] | 1767 | .op_func = (nfsd4op_func)nfsd4_destroy_clientid, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1768 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
| 1769 | | OP_MODIFIES_SOMETHING, |
Benny Halevy | 094b5d7 | 2011-06-16 11:39:10 -0400 | [diff] [blame] | 1770 | .op_name = "OP_DESTROY_CLIENTID", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1771 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
Benny Halevy | 094b5d7 | 2011-06-16 11:39:10 -0400 | [diff] [blame] | 1772 | }, |
J. Bruce Fields | 4dc6ec0 | 2010-04-19 15:11:28 -0400 | [diff] [blame] | 1773 | [OP_RECLAIM_COMPLETE] = { |
| 1774 | .op_func = (nfsd4op_func)nfsd4_reclaim_complete, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1775 | .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING, |
J. Bruce Fields | 4dc6ec0 | 2010-04-19 15:11:28 -0400 | [diff] [blame] | 1776 | .op_name = "OP_RECLAIM_COMPLETE", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1777 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
J. Bruce Fields | 4dc6ec0 | 2010-04-19 15:11:28 -0400 | [diff] [blame] | 1778 | }, |
J. Bruce Fields | 04f4ad1 | 2010-12-16 09:51:13 -0500 | [diff] [blame] | 1779 | [OP_SECINFO_NO_NAME] = { |
| 1780 | .op_func = (nfsd4op_func)nfsd4_secinfo_no_name, |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1781 | .op_flags = OP_HANDLES_WRONGSEC, |
J. Bruce Fields | 04f4ad1 | 2010-12-16 09:51:13 -0500 | [diff] [blame] | 1782 | .op_name = "OP_SECINFO_NO_NAME", |
| 1783 | }, |
Bryan Schumaker | 1745680 | 2011-07-13 10:50:48 -0400 | [diff] [blame] | 1784 | [OP_TEST_STATEID] = { |
| 1785 | .op_func = (nfsd4op_func)nfsd4_test_stateid, |
| 1786 | .op_flags = ALLOWED_WITHOUT_FH, |
| 1787 | .op_name = "OP_TEST_STATEID", |
| 1788 | }, |
Bryan Schumaker | e1ca12d | 2011-07-13 11:04:21 -0400 | [diff] [blame] | 1789 | [OP_FREE_STATEID] = { |
| 1790 | .op_func = (nfsd4op_func)nfsd4_free_stateid, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1791 | .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING, |
Bryan Schumaker | e1ca12d | 2011-07-13 11:04:21 -0400 | [diff] [blame] | 1792 | .op_name = "OP_FREE_STATEID", |
J. Bruce Fields | a1dc695 | 2012-12-17 18:17:13 -0500 | [diff] [blame] | 1793 | .op_get_currentstateid = (stateid_getter)nfsd4_get_freestateid, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1794 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
Bryan Schumaker | e1ca12d | 2011-07-13 11:04:21 -0400 | [diff] [blame] | 1795 | }, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1796 | }; |
| 1797 | |
Trond Myklebust | 8f199b8 | 2012-03-20 15:11:17 -0400 | [diff] [blame] | 1798 | #ifdef NFSD_DEBUG |
Adrian Bunk | f1c7f79 | 2008-08-08 19:26:42 +0300 | [diff] [blame] | 1799 | static const char *nfsd4_op_name(unsigned opnum) |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1800 | { |
| 1801 | if (opnum < ARRAY_SIZE(nfsd4_ops)) |
| 1802 | return nfsd4_ops[opnum].op_name; |
| 1803 | return "unknown_operation"; |
| 1804 | } |
Trond Myklebust | 8f199b8 | 2012-03-20 15:11:17 -0400 | [diff] [blame] | 1805 | #endif |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1806 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1807 | #define nfsd4_voidres nfsd4_voidargs |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1808 | struct nfsd4_voidargs { int dummy; }; |
| 1809 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1810 | static struct svc_procedure nfsd_procedures4[2] = { |
Yu Zhiguo | 0a93a47 | 2009-05-19 14:09:54 +0800 | [diff] [blame] | 1811 | [NFSPROC4_NULL] = { |
| 1812 | .pc_func = (svc_procfunc) nfsd4_proc_null, |
| 1813 | .pc_encode = (kxdrproc_t) nfs4svc_encode_voidres, |
| 1814 | .pc_argsize = sizeof(struct nfsd4_voidargs), |
| 1815 | .pc_ressize = sizeof(struct nfsd4_voidres), |
| 1816 | .pc_cachetype = RC_NOCACHE, |
| 1817 | .pc_xdrressize = 1, |
| 1818 | }, |
| 1819 | [NFSPROC4_COMPOUND] = { |
| 1820 | .pc_func = (svc_procfunc) nfsd4_proc_compound, |
| 1821 | .pc_decode = (kxdrproc_t) nfs4svc_decode_compoundargs, |
| 1822 | .pc_encode = (kxdrproc_t) nfs4svc_encode_compoundres, |
| 1823 | .pc_argsize = sizeof(struct nfsd4_compoundargs), |
| 1824 | .pc_ressize = sizeof(struct nfsd4_compoundres), |
J. Bruce Fields | 3e98abf | 2011-07-16 17:15:10 -0400 | [diff] [blame] | 1825 | .pc_release = nfsd4_release_compoundargs, |
Yu Zhiguo | 0a93a47 | 2009-05-19 14:09:54 +0800 | [diff] [blame] | 1826 | .pc_cachetype = RC_NOCACHE, |
| 1827 | .pc_xdrressize = NFSD_BUFSIZE/4, |
| 1828 | }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1829 | }; |
| 1830 | |
| 1831 | struct svc_version nfsd_version4 = { |
| 1832 | .vs_vers = 4, |
| 1833 | .vs_nproc = 2, |
| 1834 | .vs_proc = nfsd_procedures4, |
| 1835 | .vs_dispatch = nfsd_dispatch, |
| 1836 | .vs_xdrsize = NFS4_SVC_XDRSIZE, |
| 1837 | }; |
| 1838 | |
| 1839 | /* |
| 1840 | * Local variables: |
| 1841 | * c-basic-offset: 8 |
| 1842 | * End: |
| 1843 | */ |