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 | |
David Quigley | 18032ca | 2013-05-02 13:19:10 -0400 | [diff] [blame] | 45 | #ifdef CONFIG_NFSD_V4_SECURITY_LABEL |
| 46 | #include <linux/security.h> |
| 47 | |
| 48 | static inline void |
| 49 | nfsd4_security_inode_setsecctx(struct svc_fh *resfh, struct xdr_netobj *label, u32 *bmval) |
| 50 | { |
| 51 | struct inode *inode = resfh->fh_dentry->d_inode; |
| 52 | int status; |
| 53 | |
| 54 | mutex_lock(&inode->i_mutex); |
| 55 | status = security_inode_setsecctx(resfh->fh_dentry, |
| 56 | label->data, label->len); |
| 57 | mutex_unlock(&inode->i_mutex); |
| 58 | |
| 59 | if (status) |
| 60 | /* |
| 61 | * XXX: We should really fail the whole open, but we may |
| 62 | * already have created a new file, so it may be too |
| 63 | * late. For now this seems the least of evils: |
| 64 | */ |
| 65 | bmval[2] &= ~FATTR4_WORD2_SECURITY_LABEL; |
| 66 | |
| 67 | return; |
| 68 | } |
| 69 | #else |
| 70 | static inline void |
| 71 | nfsd4_security_inode_setsecctx(struct svc_fh *resfh, struct xdr_netobj *label, u32 *bmval) |
| 72 | { } |
| 73 | #endif |
| 74 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 75 | #define NFSDDBG_FACILITY NFSDDBG_PROC |
| 76 | |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 77 | static u32 nfsd_attrmask[] = { |
| 78 | NFSD_WRITEABLE_ATTRS_WORD0, |
| 79 | NFSD_WRITEABLE_ATTRS_WORD1, |
| 80 | NFSD_WRITEABLE_ATTRS_WORD2 |
| 81 | }; |
| 82 | |
| 83 | static u32 nfsd41_ex_attrmask[] = { |
| 84 | NFSD_SUPPATTR_EXCLCREAT_WORD0, |
| 85 | NFSD_SUPPATTR_EXCLCREAT_WORD1, |
| 86 | NFSD_SUPPATTR_EXCLCREAT_WORD2 |
| 87 | }; |
| 88 | |
| 89 | static __be32 |
| 90 | check_attr_support(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 91 | u32 *bmval, u32 *writable) |
| 92 | { |
| 93 | struct dentry *dentry = cstate->current_fh.fh_dentry; |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 94 | |
| 95 | /* |
| 96 | * Check about attributes are supported by the NFSv4 server or not. |
| 97 | * According to spec, unsupported attributes return ERR_ATTRNOTSUPP. |
| 98 | */ |
| 99 | if ((bmval[0] & ~nfsd_suppattrs0(cstate->minorversion)) || |
| 100 | (bmval[1] & ~nfsd_suppattrs1(cstate->minorversion)) || |
| 101 | (bmval[2] & ~nfsd_suppattrs2(cstate->minorversion))) |
| 102 | return nfserr_attrnotsupp; |
| 103 | |
| 104 | /* |
Trond Myklebust | a06b126 | 2009-08-31 15:16:11 -0400 | [diff] [blame] | 105 | * Check FATTR4_WORD0_ACL can be supported |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 106 | * in current environment or not. |
| 107 | */ |
| 108 | if (bmval[0] & FATTR4_WORD0_ACL) { |
| 109 | if (!IS_POSIXACL(dentry->d_inode)) |
| 110 | return nfserr_attrnotsupp; |
| 111 | } |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 112 | |
| 113 | /* |
| 114 | * According to spec, read-only attributes return ERR_INVAL. |
| 115 | */ |
| 116 | if (writable) { |
| 117 | if ((bmval[0] & ~writable[0]) || (bmval[1] & ~writable[1]) || |
| 118 | (bmval[2] & ~writable[2])) |
| 119 | return nfserr_inval; |
| 120 | } |
| 121 | |
| 122 | return nfs_ok; |
| 123 | } |
| 124 | |
| 125 | static __be32 |
| 126 | nfsd4_check_open_attributes(struct svc_rqst *rqstp, |
| 127 | struct nfsd4_compound_state *cstate, struct nfsd4_open *open) |
| 128 | { |
| 129 | __be32 status = nfs_ok; |
| 130 | |
| 131 | if (open->op_create == NFS4_OPEN_CREATE) { |
| 132 | if (open->op_createmode == NFS4_CREATE_UNCHECKED |
| 133 | || open->op_createmode == NFS4_CREATE_GUARDED) |
| 134 | status = check_attr_support(rqstp, cstate, |
| 135 | open->op_bmval, nfsd_attrmask); |
| 136 | else if (open->op_createmode == NFS4_CREATE_EXCLUSIVE4_1) |
| 137 | status = check_attr_support(rqstp, cstate, |
| 138 | open->op_bmval, nfsd41_ex_attrmask); |
| 139 | } |
| 140 | |
| 141 | return status; |
| 142 | } |
| 143 | |
Yu Zhiguo | 9208faf | 2009-07-06 17:24:16 +0800 | [diff] [blame] | 144 | static int |
| 145 | is_create_with_attrs(struct nfsd4_open *open) |
| 146 | { |
| 147 | return open->op_create == NFS4_OPEN_CREATE |
| 148 | && (open->op_createmode == NFS4_CREATE_UNCHECKED |
| 149 | || open->op_createmode == NFS4_CREATE_GUARDED |
| 150 | || open->op_createmode == NFS4_CREATE_EXCLUSIVE4_1); |
| 151 | } |
| 152 | |
| 153 | /* |
| 154 | * if error occurs when setting the acl, just clear the acl bit |
| 155 | * in the returned attr bitmap. |
| 156 | */ |
| 157 | static void |
| 158 | do_set_nfs4_acl(struct svc_rqst *rqstp, struct svc_fh *fhp, |
| 159 | struct nfs4_acl *acl, u32 *bmval) |
| 160 | { |
| 161 | __be32 status; |
| 162 | |
| 163 | status = nfsd4_set_nfs4_acl(rqstp, fhp, acl); |
| 164 | if (status) |
| 165 | /* |
| 166 | * We should probably fail the whole open at this point, |
| 167 | * but we've already created the file, so it's too late; |
| 168 | * So this seems the least of evils: |
| 169 | */ |
| 170 | bmval[0] &= ~FATTR4_WORD0_ACL; |
| 171 | } |
| 172 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 173 | static inline void |
| 174 | fh_dup2(struct svc_fh *dst, struct svc_fh *src) |
| 175 | { |
| 176 | fh_put(dst); |
| 177 | dget(src->fh_dentry); |
| 178 | if (src->fh_export) |
| 179 | cache_get(&src->fh_export->h); |
| 180 | *dst = *src; |
| 181 | } |
| 182 | |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 183 | static __be32 |
J. Bruce Fields | dc730e1 | 2006-10-17 00:10:13 -0700 | [diff] [blame] | 184 | 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] | 185 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 186 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 187 | |
| 188 | if (open->op_truncate && |
| 189 | !(open->op_share_access & NFS4_SHARE_ACCESS_WRITE)) |
| 190 | return nfserr_inval; |
| 191 | |
J. Bruce Fields | a043226 | 2011-08-25 10:48:39 -0400 | [diff] [blame] | 192 | accmode |= NFSD_MAY_READ_IF_EXEC; |
| 193 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 194 | if (open->op_share_access & NFS4_SHARE_ACCESS_READ) |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 195 | accmode |= NFSD_MAY_READ; |
J. Bruce Fields | 9801d8a | 2006-10-17 00:10:14 -0700 | [diff] [blame] | 196 | if (open->op_share_access & NFS4_SHARE_ACCESS_WRITE) |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 197 | accmode |= (NFSD_MAY_WRITE | NFSD_MAY_TRUNC); |
J. Bruce Fields | 57ecb34 | 2009-12-01 19:42:57 -0500 | [diff] [blame] | 198 | if (open->op_share_deny & NFS4_SHARE_DENY_READ) |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 199 | accmode |= NFSD_MAY_WRITE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 200 | |
| 201 | status = fh_verify(rqstp, current_fh, S_IFREG, accmode); |
| 202 | |
| 203 | return status; |
| 204 | } |
| 205 | |
J. Bruce Fields | aadab6c | 2011-08-15 16:55:02 -0400 | [diff] [blame] | 206 | static __be32 nfsd_check_obj_isreg(struct svc_fh *fh) |
| 207 | { |
| 208 | umode_t mode = fh->fh_dentry->d_inode->i_mode; |
| 209 | |
| 210 | if (S_ISREG(mode)) |
| 211 | return nfs_ok; |
| 212 | if (S_ISDIR(mode)) |
| 213 | return nfserr_isdir; |
| 214 | /* |
| 215 | * Using err_symlink as our catch-all case may look odd; but |
| 216 | * there's no other obvious error for this case in 4.0, and we |
| 217 | * happen to know that it will cause the linux v4 client to do |
| 218 | * the right thing on attempts to open something other than a |
| 219 | * regular file. |
| 220 | */ |
| 221 | return nfserr_symlink; |
| 222 | } |
| 223 | |
J. Bruce Fields | bbc9c36 | 2013-03-22 18:03:49 -0400 | [diff] [blame] | 224 | static void nfsd4_set_open_owner_reply_cache(struct nfsd4_compound_state *cstate, struct nfsd4_open *open, struct svc_fh *resfh) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 225 | { |
J. Bruce Fields | bbc9c36 | 2013-03-22 18:03:49 -0400 | [diff] [blame] | 226 | if (nfsd4_has_session(cstate)) |
| 227 | return; |
| 228 | fh_copy_shallow(&open->op_openowner->oo_owner.so_replay.rp_openfh, |
| 229 | &resfh->fh_handle); |
| 230 | } |
| 231 | |
| 232 | static __be32 |
| 233 | do_open_lookup(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_open *open) |
| 234 | { |
| 235 | struct svc_fh *current_fh = &cstate->current_fh; |
J. Bruce Fields | 59deeb9 | 2012-01-27 16:49:55 -0500 | [diff] [blame] | 236 | struct svc_fh *resfh; |
Neil Brown | 7007c90 | 2012-12-07 15:40:55 -0500 | [diff] [blame] | 237 | int accmode; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 238 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 239 | |
J. Bruce Fields | 59deeb9 | 2012-01-27 16:49:55 -0500 | [diff] [blame] | 240 | resfh = kmalloc(sizeof(struct svc_fh), GFP_KERNEL); |
| 241 | if (!resfh) |
| 242 | return nfserr_jukebox; |
| 243 | fh_init(resfh, NFS4_FHSIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 244 | open->op_truncate = 0; |
| 245 | |
| 246 | if (open->op_create) { |
Benny Halevy | 79fb54a | 2009-04-03 08:29:17 +0300 | [diff] [blame] | 247 | /* FIXME: check session persistence and pnfs flags. |
| 248 | * The nfsv4.1 spec requires the following semantics: |
| 249 | * |
| 250 | * Persistent | pNFS | Server REQUIRED | Client Allowed |
| 251 | * Reply Cache | server | | |
| 252 | * -------------+--------+-----------------+-------------------- |
| 253 | * no | no | EXCLUSIVE4_1 | EXCLUSIVE4_1 |
| 254 | * | | | (SHOULD) |
| 255 | * | | and EXCLUSIVE4 | or EXCLUSIVE4 |
| 256 | * | | | (SHOULD NOT) |
| 257 | * no | yes | EXCLUSIVE4_1 | EXCLUSIVE4_1 |
| 258 | * yes | no | GUARDED4 | GUARDED4 |
| 259 | * yes | yes | GUARDED4 | GUARDED4 |
| 260 | */ |
| 261 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 262 | /* |
| 263 | * Note: create modes (UNCHECKED,GUARDED...) are the same |
Mi Jinlong | ac6721a | 2011-04-20 17:06:25 +0800 | [diff] [blame] | 264 | * in NFSv4 as in v3 except EXCLUSIVE4_1. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 265 | */ |
Mi Jinlong | ac6721a | 2011-04-20 17:06:25 +0800 | [diff] [blame] | 266 | status = do_nfsd_create(rqstp, current_fh, open->op_fname.data, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 267 | open->op_fname.len, &open->op_iattr, |
J. Bruce Fields | 59deeb9 | 2012-01-27 16:49:55 -0500 | [diff] [blame] | 268 | resfh, open->op_createmode, |
Jeff Layton | 749997e | 2007-07-31 00:37:51 -0700 | [diff] [blame] | 269 | (u32 *)open->op_verf.data, |
J. Bruce Fields | 856121b | 2011-10-13 11:37:11 -0400 | [diff] [blame] | 270 | &open->op_truncate, &open->op_created); |
Jeff Layton | 749997e | 2007-07-31 00:37:51 -0700 | [diff] [blame] | 271 | |
David Quigley | 18032ca | 2013-05-02 13:19:10 -0400 | [diff] [blame] | 272 | if (!status && open->op_label.len) |
| 273 | nfsd4_security_inode_setsecctx(resfh, &open->op_label, open->op_bmval); |
| 274 | |
J. Bruce Fields | 99f8872 | 2009-02-02 15:12:27 -0500 | [diff] [blame] | 275 | /* |
| 276 | * Following rfc 3530 14.2.16, use the returned bitmask |
| 277 | * to indicate which attributes we used to store the |
| 278 | * verifier: |
Jeff Layton | 749997e | 2007-07-31 00:37:51 -0700 | [diff] [blame] | 279 | */ |
| 280 | if (open->op_createmode == NFS4_CREATE_EXCLUSIVE && status == 0) |
J. Bruce Fields | 99f8872 | 2009-02-02 15:12:27 -0500 | [diff] [blame] | 281 | open->op_bmval[1] = (FATTR4_WORD1_TIME_ACCESS | |
J. Bruce Fields | 9dc4e6c | 2012-04-09 18:06:49 -0400 | [diff] [blame] | 282 | FATTR4_WORD1_TIME_MODIFY); |
J. Bruce Fields | af85852 | 2006-11-08 17:44:39 -0800 | [diff] [blame] | 283 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 284 | status = nfsd_lookup(rqstp, current_fh, |
J. Bruce Fields | 59deeb9 | 2012-01-27 16:49:55 -0500 | [diff] [blame] | 285 | open->op_fname.data, open->op_fname.len, resfh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 286 | fh_unlock(current_fh); |
| 287 | } |
J. Bruce Fields | af85852 | 2006-11-08 17:44:39 -0800 | [diff] [blame] | 288 | if (status) |
| 289 | goto out; |
J. Bruce Fields | 9dc4e6c | 2012-04-09 18:06:49 -0400 | [diff] [blame] | 290 | status = nfsd_check_obj_isreg(resfh); |
| 291 | if (status) |
| 292 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 293 | |
Yu Zhiguo | 9208faf | 2009-07-06 17:24:16 +0800 | [diff] [blame] | 294 | if (is_create_with_attrs(open) && open->op_acl != NULL) |
J. Bruce Fields | 59deeb9 | 2012-01-27 16:49:55 -0500 | [diff] [blame] | 295 | do_set_nfs4_acl(rqstp, resfh, open->op_acl, open->op_bmval); |
Yu Zhiguo | 9208faf | 2009-07-06 17:24:16 +0800 | [diff] [blame] | 296 | |
J. Bruce Fields | bbc9c36 | 2013-03-22 18:03:49 -0400 | [diff] [blame] | 297 | nfsd4_set_open_owner_reply_cache(cstate, open, resfh); |
Neil Brown | 7007c90 | 2012-12-07 15:40:55 -0500 | [diff] [blame] | 298 | accmode = NFSD_MAY_NOP; |
J. Bruce Fields | 89f6c33 | 2013-06-19 15:47:37 -0400 | [diff] [blame] | 299 | if (open->op_created || |
| 300 | open->op_claim_type == NFS4_OPEN_CLAIM_DELEGATE_CUR) |
Neil Brown | 7007c90 | 2012-12-07 15:40:55 -0500 | [diff] [blame] | 301 | accmode |= NFSD_MAY_OWNER_OVERRIDE; |
| 302 | status = do_open_permission(rqstp, resfh, open, accmode); |
J. Bruce Fields | 41fd1e4 | 2012-01-27 16:26:02 -0500 | [diff] [blame] | 303 | set_change_info(&open->op_cinfo, current_fh); |
J. Bruce Fields | 59deeb9 | 2012-01-27 16:49:55 -0500 | [diff] [blame] | 304 | fh_dup2(current_fh, resfh); |
J. Bruce Fields | af85852 | 2006-11-08 17:44:39 -0800 | [diff] [blame] | 305 | out: |
J. Bruce Fields | 59deeb9 | 2012-01-27 16:49:55 -0500 | [diff] [blame] | 306 | fh_put(resfh); |
| 307 | kfree(resfh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 308 | return status; |
| 309 | } |
| 310 | |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 311 | static __be32 |
J. Bruce Fields | bbc9c36 | 2013-03-22 18:03:49 -0400 | [diff] [blame] | 312 | do_open_fhandle(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_open *open) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 313 | { |
J. Bruce Fields | bbc9c36 | 2013-03-22 18:03:49 -0400 | [diff] [blame] | 314 | struct svc_fh *current_fh = &cstate->current_fh; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 315 | __be32 status; |
J. Bruce Fields | 9f415eb | 2013-05-03 16:09:09 -0400 | [diff] [blame] | 316 | int accmode = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 317 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 318 | /* We don't know the target directory, and therefore can not |
| 319 | * set the change info |
| 320 | */ |
| 321 | |
| 322 | memset(&open->op_cinfo, 0, sizeof(struct nfsd4_change_info)); |
| 323 | |
J. Bruce Fields | bbc9c36 | 2013-03-22 18:03:49 -0400 | [diff] [blame] | 324 | nfsd4_set_open_owner_reply_cache(cstate, open, current_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 325 | |
| 326 | open->op_truncate = (open->op_iattr.ia_valid & ATTR_SIZE) && |
| 327 | (open->op_iattr.ia_size == 0); |
J. Bruce Fields | 9f415eb | 2013-05-03 16:09:09 -0400 | [diff] [blame] | 328 | /* |
| 329 | * In the delegation case, the client is telling us about an |
| 330 | * open that it *already* performed locally, some time ago. We |
| 331 | * should let it succeed now if possible. |
| 332 | * |
| 333 | * In the case of a CLAIM_FH open, on the other hand, the client |
| 334 | * may be counting on us to enforce permissions (the Linux 4.1 |
| 335 | * client uses this for normal opens, for example). |
| 336 | */ |
| 337 | if (open->op_claim_type == NFS4_OPEN_CLAIM_DELEG_CUR_FH) |
| 338 | accmode = NFSD_MAY_OWNER_OVERRIDE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 339 | |
J. Bruce Fields | 9f415eb | 2013-05-03 16:09:09 -0400 | [diff] [blame] | 340 | status = do_open_permission(rqstp, current_fh, open, accmode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 341 | |
| 342 | return status; |
| 343 | } |
| 344 | |
Andy Adamson | 60adfc5 | 2009-04-03 08:28:50 +0300 | [diff] [blame] | 345 | static void |
| 346 | copy_clientid(clientid_t *clid, struct nfsd4_session *session) |
| 347 | { |
| 348 | struct nfsd4_sessionid *sid = |
| 349 | (struct nfsd4_sessionid *)session->se_sessionid.data; |
| 350 | |
| 351 | clid->cl_boot = sid->clientid.cl_boot; |
| 352 | clid->cl_id = sid->clientid.cl_id; |
| 353 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 354 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 355 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 356 | nfsd4_open(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
J.Bruce Fields | a4f1706a9 | 2006-12-13 00:35:28 -0800 | [diff] [blame] | 357 | struct nfsd4_open *open) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 358 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 359 | __be32 status; |
Andy Adamson | 6668958 | 2009-04-03 08:28:45 +0300 | [diff] [blame] | 360 | struct nfsd4_compoundres *resp; |
Stanislav Kinsbursky | 3320fef19 | 2012-11-14 18:22:07 +0300 | [diff] [blame] | 361 | struct net *net = SVC_NET(rqstp); |
| 362 | struct nfsd_net *nn = net_generic(net, nfsd_net_id); |
Andy Adamson | 6668958 | 2009-04-03 08:28:45 +0300 | [diff] [blame] | 363 | |
J. Bruce Fields | fe0750e | 2011-07-30 23:33:59 -0400 | [diff] [blame] | 364 | dprintk("NFSD: nfsd4_open filename %.*s op_openowner %p\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 365 | (int)open->op_fname.len, open->op_fname.data, |
J. Bruce Fields | fe0750e | 2011-07-30 23:33:59 -0400 | [diff] [blame] | 366 | open->op_openowner); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 367 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 368 | /* This check required by spec. */ |
| 369 | if (open->op_create && open->op_claim_type != NFS4_OPEN_CLAIM_NULL) |
| 370 | return nfserr_inval; |
| 371 | |
J. Bruce Fields | 856121b | 2011-10-13 11:37:11 -0400 | [diff] [blame] | 372 | open->op_created = 0; |
Mi Jinlong | ab1350b | 2011-07-14 15:06:26 +0800 | [diff] [blame] | 373 | /* |
| 374 | * RFC5661 18.51.3 |
| 375 | * Before RECLAIM_COMPLETE done, server should deny new lock |
| 376 | */ |
| 377 | if (nfsd4_has_session(cstate) && |
Jeff Layton | a52d726 | 2012-03-21 09:52:02 -0400 | [diff] [blame] | 378 | !test_bit(NFSD4_CLIENT_RECLAIM_COMPLETE, |
| 379 | &cstate->session->se_client->cl_flags) && |
Mi Jinlong | ab1350b | 2011-07-14 15:06:26 +0800 | [diff] [blame] | 380 | open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS) |
| 381 | return nfserr_grace; |
| 382 | |
Andy Adamson | 60adfc5 | 2009-04-03 08:28:50 +0300 | [diff] [blame] | 383 | if (nfsd4_has_session(cstate)) |
| 384 | copy_clientid(&open->op_clientid, cstate->session); |
| 385 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 386 | nfs4_lock_state(); |
| 387 | |
| 388 | /* check seqid for replay. set nfs4_owner */ |
Andy Adamson | 6668958 | 2009-04-03 08:28:45 +0300 | [diff] [blame] | 389 | resp = rqstp->rq_resp; |
Stanislav Kinsbursky | 3320fef19 | 2012-11-14 18:22:07 +0300 | [diff] [blame] | 390 | status = nfsd4_process_open1(&resp->cstate, open, nn); |
Al Viro | a90b061 | 2006-10-19 23:29:03 -0700 | [diff] [blame] | 391 | if (status == nfserr_replay_me) { |
J. Bruce Fields | fe0750e | 2011-07-30 23:33:59 -0400 | [diff] [blame] | 392 | struct nfs4_replay *rp = &open->op_openowner->oo_owner.so_replay; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 393 | fh_put(&cstate->current_fh); |
J. Bruce Fields | a4773c08 | 2009-02-02 17:23:10 -0500 | [diff] [blame] | 394 | fh_copy_shallow(&cstate->current_fh.fh_handle, |
| 395 | &rp->rp_openfh); |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 396 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 397 | if (status) |
| 398 | dprintk("nfsd4_open: replay failed" |
| 399 | " restoring previous filehandle\n"); |
| 400 | else |
Al Viro | a90b061 | 2006-10-19 23:29:03 -0700 | [diff] [blame] | 401 | status = nfserr_replay_me; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 402 | } |
| 403 | if (status) |
| 404 | goto out; |
J. Bruce Fields | 9d313b1 | 2013-02-28 12:51:49 -0800 | [diff] [blame] | 405 | if (open->op_xdr_error) { |
| 406 | status = open->op_xdr_error; |
| 407 | goto out; |
| 408 | } |
J. Bruce Fields | fb553c0 | 2006-01-18 17:43:36 -0800 | [diff] [blame] | 409 | |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 410 | status = nfsd4_check_open_attributes(rqstp, cstate, open); |
| 411 | if (status) |
| 412 | goto out; |
| 413 | |
J. Bruce Fields | fb553c0 | 2006-01-18 17:43:36 -0800 | [diff] [blame] | 414 | /* Openowner is now set, so sequence id will get bumped. Now we need |
| 415 | * these checks before we do any creates: */ |
J. Bruce Fields | cbd0d51 | 2006-02-07 12:58:32 -0800 | [diff] [blame] | 416 | status = nfserr_grace; |
Stanislav Kinsbursky | 3320fef19 | 2012-11-14 18:22:07 +0300 | [diff] [blame] | 417 | 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] | 418 | goto out; |
| 419 | status = nfserr_no_grace; |
Stanislav Kinsbursky | 3320fef19 | 2012-11-14 18:22:07 +0300 | [diff] [blame] | 420 | 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] | 421 | goto out; |
J. Bruce Fields | fb553c0 | 2006-01-18 17:43:36 -0800 | [diff] [blame] | 422 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 423 | switch (open->op_claim_type) { |
NeilBrown | 0dd3c19 | 2005-06-23 22:02:56 -0700 | [diff] [blame] | 424 | case NFS4_OPEN_CLAIM_DELEGATE_CUR: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 425 | case NFS4_OPEN_CLAIM_NULL: |
J. Bruce Fields | bbc9c36 | 2013-03-22 18:03:49 -0400 | [diff] [blame] | 426 | status = do_open_lookup(rqstp, cstate, open); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 427 | if (status) |
| 428 | goto out; |
| 429 | break; |
| 430 | case NFS4_OPEN_CLAIM_PREVIOUS: |
J. Bruce Fields | dad1c06 | 2011-09-12 12:24:13 -0400 | [diff] [blame] | 431 | open->op_openowner->oo_flags |= NFS4_OO_CONFIRMED; |
Stanislav Kinsbursky | 3320fef19 | 2012-11-14 18:22:07 +0300 | [diff] [blame] | 432 | status = nfs4_check_open_reclaim(&open->op_clientid, |
| 433 | cstate->minorversion, |
| 434 | nn); |
Mi Jinlong | 0cf99b9 | 2011-11-23 10:48:40 +0800 | [diff] [blame] | 435 | if (status) |
| 436 | goto out; |
J. Bruce Fields | 8b289b2 | 2011-10-19 11:52:12 -0400 | [diff] [blame] | 437 | case NFS4_OPEN_CLAIM_FH: |
| 438 | case NFS4_OPEN_CLAIM_DELEG_CUR_FH: |
J. Bruce Fields | bbc9c36 | 2013-03-22 18:03:49 -0400 | [diff] [blame] | 439 | status = do_open_fhandle(rqstp, cstate, open); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 440 | if (status) |
| 441 | goto out; |
| 442 | break; |
J. Bruce Fields | 8b289b2 | 2011-10-19 11:52:12 -0400 | [diff] [blame] | 443 | case NFS4_OPEN_CLAIM_DELEG_PREV_FH: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 444 | case NFS4_OPEN_CLAIM_DELEGATE_PREV: |
J. Bruce Fields | dad1c06 | 2011-09-12 12:24:13 -0400 | [diff] [blame] | 445 | open->op_openowner->oo_flags |= NFS4_OO_CONFIRMED; |
J. Bruce Fields | 2fdada0 | 2007-07-27 16:10:37 -0400 | [diff] [blame] | 446 | dprintk("NFSD: unsupported OPEN claim type %d\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 447 | open->op_claim_type); |
| 448 | status = nfserr_notsupp; |
| 449 | goto out; |
| 450 | default: |
J. Bruce Fields | 2fdada0 | 2007-07-27 16:10:37 -0400 | [diff] [blame] | 451 | dprintk("NFSD: Invalid OPEN claim type %d\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 452 | open->op_claim_type); |
| 453 | status = nfserr_inval; |
| 454 | goto out; |
| 455 | } |
| 456 | /* |
| 457 | * nfsd4_process_open2() does the actual opening of the file. If |
| 458 | * successful, it (1) truncates the file if open->op_truncate was |
| 459 | * set, (2) sets open->op_stateid, (3) sets open->op_delegation. |
| 460 | */ |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 461 | status = nfsd4_process_open2(rqstp, &cstate->current_fh, open); |
J. Bruce Fields | 856121b | 2011-10-13 11:37:11 -0400 | [diff] [blame] | 462 | WARN_ON(status && open->op_created); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 463 | out: |
J. Bruce Fields | d29b20c | 2011-10-13 15:12:59 -0400 | [diff] [blame] | 464 | nfsd4_cleanup_open_state(open, status); |
J. Bruce Fields | 3d74e6a | 2013-03-22 17:44:19 -0400 | [diff] [blame] | 465 | if (open->op_openowner && !nfsd4_has_session(cstate)) |
J. Bruce Fields | fe0750e | 2011-07-30 23:33:59 -0400 | [diff] [blame] | 466 | cstate->replay_owner = &open->op_openowner->oo_owner; |
J. Bruce Fields | 9411b1d | 2013-04-01 16:37:12 -0400 | [diff] [blame] | 467 | nfsd4_bump_seqid(cstate, status); |
| 468 | if (!cstate->replay_owner) |
J. Bruce Fields | 5ec094c | 2011-08-30 17:02:48 -0400 | [diff] [blame] | 469 | nfs4_unlock_state(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 470 | return status; |
| 471 | } |
| 472 | |
| 473 | /* |
J. Bruce Fields | 9d313b1 | 2013-02-28 12:51:49 -0800 | [diff] [blame] | 474 | * OPEN is the only seqid-mutating operation whose decoding can fail |
| 475 | * with a seqid-mutating error (specifically, decoding of user names in |
| 476 | * the attributes). Therefore we have to do some processing to look up |
| 477 | * the stateowner so that we can bump the seqid. |
| 478 | */ |
| 479 | static __be32 nfsd4_open_omfg(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_op *op) |
| 480 | { |
| 481 | struct nfsd4_open *open = (struct nfsd4_open *)&op->u; |
| 482 | |
| 483 | if (!seqid_mutating_err(ntohl(op->status))) |
| 484 | return op->status; |
| 485 | if (nfsd4_has_session(cstate)) |
| 486 | return op->status; |
| 487 | open->op_xdr_error = op->status; |
| 488 | return nfsd4_open(rqstp, cstate, open); |
| 489 | } |
| 490 | |
| 491 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 492 | * filehandle-manipulating ops. |
| 493 | */ |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 494 | static __be32 |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 495 | nfsd4_getfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 496 | struct svc_fh **getfh) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 497 | { |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 498 | if (!cstate->current_fh.fh_dentry) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 499 | return nfserr_nofilehandle; |
| 500 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 501 | *getfh = &cstate->current_fh; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 502 | return nfs_ok; |
| 503 | } |
| 504 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 505 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 506 | nfsd4_putfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 507 | struct nfsd4_putfh *putfh) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 508 | { |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 509 | fh_put(&cstate->current_fh); |
| 510 | cstate->current_fh.fh_handle.fh_size = putfh->pf_fhlen; |
| 511 | memcpy(&cstate->current_fh.fh_handle.fh_base, putfh->pf_fhval, |
| 512 | putfh->pf_fhlen); |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 513 | return fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_BYPASS_GSS); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 514 | } |
| 515 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 516 | static __be32 |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 517 | nfsd4_putrootfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 518 | void *arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 519 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 520 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 521 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 522 | fh_put(&cstate->current_fh); |
J. Bruce Fields | df547ef | 2007-07-17 04:04:43 -0700 | [diff] [blame] | 523 | status = exp_pseudoroot(rqstp, &cstate->current_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 524 | return status; |
| 525 | } |
| 526 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 527 | static __be32 |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 528 | nfsd4_restorefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 529 | void *arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 530 | { |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 531 | if (!cstate->save_fh.fh_dentry) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 532 | return nfserr_restorefh; |
| 533 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 534 | fh_dup2(&cstate->current_fh, &cstate->save_fh); |
Tigran Mkrtchyan | 37c593c | 2012-02-13 22:55:32 +0100 | [diff] [blame] | 535 | if (HAS_STATE_ID(cstate, SAVED_STATE_ID_FLAG)) { |
| 536 | memcpy(&cstate->current_stateid, &cstate->save_stateid, sizeof(stateid_t)); |
| 537 | SET_STATE_ID(cstate, CURRENT_STATE_ID_FLAG); |
| 538 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 539 | return nfs_ok; |
| 540 | } |
| 541 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 542 | static __be32 |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 543 | nfsd4_savefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 544 | void *arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 545 | { |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 546 | if (!cstate->current_fh.fh_dentry) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 547 | return nfserr_nofilehandle; |
| 548 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 549 | fh_dup2(&cstate->save_fh, &cstate->current_fh); |
Tigran Mkrtchyan | 37c593c | 2012-02-13 22:55:32 +0100 | [diff] [blame] | 550 | if (HAS_STATE_ID(cstate, CURRENT_STATE_ID_FLAG)) { |
| 551 | memcpy(&cstate->save_stateid, &cstate->current_stateid, sizeof(stateid_t)); |
| 552 | SET_STATE_ID(cstate, SAVED_STATE_ID_FLAG); |
| 553 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 554 | return nfs_ok; |
| 555 | } |
| 556 | |
| 557 | /* |
| 558 | * misc nfsv4 ops |
| 559 | */ |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 560 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 561 | nfsd4_access(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 562 | struct nfsd4_access *access) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 563 | { |
| 564 | if (access->ac_req_access & ~NFS3_ACCESS_FULL) |
| 565 | return nfserr_inval; |
| 566 | |
| 567 | access->ac_resp_access = access->ac_req_access; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 568 | return nfsd_access(rqstp, &cstate->current_fh, &access->ac_resp_access, |
| 569 | &access->ac_supported); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 570 | } |
| 571 | |
Stanislav Kinsbursky | b9c0ef8 | 2012-12-06 14:23:19 +0300 | [diff] [blame] | 572 | static void gen_boot_verifier(nfs4_verifier *verifier, struct net *net) |
Chuck Lever | ab4684d | 2012-03-02 17:13:50 -0500 | [diff] [blame] | 573 | { |
| 574 | __be32 verf[2]; |
Stanislav Kinsbursky | b9c0ef8 | 2012-12-06 14:23:19 +0300 | [diff] [blame] | 575 | struct nfsd_net *nn = net_generic(net, nfsd_net_id); |
Chuck Lever | ab4684d | 2012-03-02 17:13:50 -0500 | [diff] [blame] | 576 | |
Stanislav Kinsbursky | b9c0ef8 | 2012-12-06 14:23:19 +0300 | [diff] [blame] | 577 | verf[0] = (__be32)nn->nfssvc_boot.tv_sec; |
| 578 | verf[1] = (__be32)nn->nfssvc_boot.tv_usec; |
Chuck Lever | ab4684d | 2012-03-02 17:13:50 -0500 | [diff] [blame] | 579 | memcpy(verifier->data, verf, sizeof(verifier->data)); |
| 580 | } |
| 581 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 582 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 583 | nfsd4_commit(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 584 | struct nfsd4_commit *commit) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 585 | { |
Stanislav Kinsbursky | b9c0ef8 | 2012-12-06 14:23:19 +0300 | [diff] [blame] | 586 | gen_boot_verifier(&commit->co_verf, SVC_NET(rqstp)); |
J. Bruce Fields | 75c096f | 2011-08-15 18:39:32 -0400 | [diff] [blame] | 587 | return nfsd_commit(rqstp, &cstate->current_fh, commit->co_offset, |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 588 | commit->co_count); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 589 | } |
| 590 | |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 591 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 592 | nfsd4_create(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 593 | struct nfsd4_create *create) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 594 | { |
| 595 | struct svc_fh resfh; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 596 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 597 | dev_t rdev; |
| 598 | |
| 599 | fh_init(&resfh, NFS4_FHSIZE); |
| 600 | |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 601 | status = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, |
| 602 | NFSD_MAY_CREATE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 603 | if (status) |
| 604 | return status; |
| 605 | |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 606 | status = check_attr_support(rqstp, cstate, create->cr_bmval, |
| 607 | nfsd_attrmask); |
| 608 | if (status) |
| 609 | return status; |
| 610 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 611 | switch (create->cr_type) { |
| 612 | case NF4LNK: |
| 613 | /* ugh! we have to null-terminate the linktext, or |
| 614 | * vfs_symlink() will choke. it is always safe to |
| 615 | * null-terminate by brute force, since at worst we |
| 616 | * will overwrite the first byte of the create namelen |
| 617 | * in the XDR buffer, which has already been extracted |
| 618 | * during XDR decode. |
| 619 | */ |
| 620 | create->cr_linkname[create->cr_linklen] = 0; |
| 621 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 622 | status = nfsd_symlink(rqstp, &cstate->current_fh, |
| 623 | create->cr_name, create->cr_namelen, |
| 624 | create->cr_linkname, create->cr_linklen, |
| 625 | &resfh, &create->cr_iattr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 626 | break; |
| 627 | |
| 628 | case NF4BLK: |
| 629 | rdev = MKDEV(create->cr_specdata1, create->cr_specdata2); |
| 630 | if (MAJOR(rdev) != create->cr_specdata1 || |
| 631 | MINOR(rdev) != create->cr_specdata2) |
| 632 | return nfserr_inval; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 633 | status = nfsd_create(rqstp, &cstate->current_fh, |
| 634 | create->cr_name, create->cr_namelen, |
| 635 | &create->cr_iattr, S_IFBLK, rdev, &resfh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 636 | break; |
| 637 | |
| 638 | case NF4CHR: |
| 639 | rdev = MKDEV(create->cr_specdata1, create->cr_specdata2); |
| 640 | if (MAJOR(rdev) != create->cr_specdata1 || |
| 641 | MINOR(rdev) != create->cr_specdata2) |
| 642 | return nfserr_inval; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 643 | status = nfsd_create(rqstp, &cstate->current_fh, |
| 644 | create->cr_name, create->cr_namelen, |
| 645 | &create->cr_iattr,S_IFCHR, rdev, &resfh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 646 | break; |
| 647 | |
| 648 | case NF4SOCK: |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 649 | status = nfsd_create(rqstp, &cstate->current_fh, |
| 650 | create->cr_name, create->cr_namelen, |
| 651 | &create->cr_iattr, S_IFSOCK, 0, &resfh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 652 | break; |
| 653 | |
| 654 | case NF4FIFO: |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 655 | status = nfsd_create(rqstp, &cstate->current_fh, |
| 656 | create->cr_name, create->cr_namelen, |
| 657 | &create->cr_iattr, S_IFIFO, 0, &resfh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 658 | break; |
| 659 | |
| 660 | case NF4DIR: |
| 661 | create->cr_iattr.ia_valid &= ~ATTR_SIZE; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 662 | status = nfsd_create(rqstp, &cstate->current_fh, |
| 663 | create->cr_name, create->cr_namelen, |
| 664 | &create->cr_iattr, S_IFDIR, 0, &resfh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 665 | break; |
| 666 | |
| 667 | default: |
| 668 | status = nfserr_badtype; |
| 669 | } |
| 670 | |
Yu Zhiguo | 9208faf | 2009-07-06 17:24:16 +0800 | [diff] [blame] | 671 | if (status) |
| 672 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 673 | |
David Quigley | 18032ca | 2013-05-02 13:19:10 -0400 | [diff] [blame] | 674 | if (create->cr_label.len) |
| 675 | nfsd4_security_inode_setsecctx(&resfh, &create->cr_label, create->cr_bmval); |
| 676 | |
Yu Zhiguo | 9208faf | 2009-07-06 17:24:16 +0800 | [diff] [blame] | 677 | if (create->cr_acl != NULL) |
| 678 | do_set_nfs4_acl(rqstp, &resfh, create->cr_acl, |
| 679 | create->cr_bmval); |
| 680 | |
| 681 | fh_unlock(&cstate->current_fh); |
| 682 | set_change_info(&create->cr_cinfo, &cstate->current_fh); |
| 683 | fh_dup2(&cstate->current_fh, &resfh); |
| 684 | out: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 685 | fh_put(&resfh); |
| 686 | return status; |
| 687 | } |
| 688 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 689 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 690 | nfsd4_getattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 691 | struct nfsd4_getattr *getattr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 692 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 693 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 694 | |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 695 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 696 | if (status) |
| 697 | return status; |
| 698 | |
| 699 | if (getattr->ga_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1) |
| 700 | return nfserr_inval; |
| 701 | |
Andy Adamson | 7e70570 | 2009-04-03 08:29:11 +0300 | [diff] [blame] | 702 | getattr->ga_bmval[0] &= nfsd_suppattrs0(cstate->minorversion); |
| 703 | getattr->ga_bmval[1] &= nfsd_suppattrs1(cstate->minorversion); |
| 704 | getattr->ga_bmval[2] &= nfsd_suppattrs2(cstate->minorversion); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 705 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 706 | getattr->ga_fhp = &cstate->current_fh; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 707 | return nfs_ok; |
| 708 | } |
| 709 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 710 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 711 | nfsd4_link(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 712 | struct nfsd4_link *link) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 713 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 714 | __be32 status = nfserr_nofilehandle; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 715 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 716 | if (!cstate->save_fh.fh_dentry) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 717 | return status; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 718 | status = nfsd_link(rqstp, &cstate->current_fh, |
| 719 | link->li_name, link->li_namelen, &cstate->save_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 720 | if (!status) |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 721 | set_change_info(&link->li_cinfo, &cstate->current_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 722 | return status; |
| 723 | } |
| 724 | |
J. Bruce Fields | 0ff7ab4 | 2010-12-16 10:06:27 -0500 | [diff] [blame] | 725 | 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] | 726 | { |
| 727 | struct svc_fh tmp_fh; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 728 | __be32 ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 729 | |
| 730 | fh_init(&tmp_fh, NFS4_FHSIZE); |
J. Bruce Fields | df547ef | 2007-07-17 04:04:43 -0700 | [diff] [blame] | 731 | ret = exp_pseudoroot(rqstp, &tmp_fh); |
| 732 | if (ret) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 733 | return ret; |
J. Bruce Fields | 0ff7ab4 | 2010-12-16 10:06:27 -0500 | [diff] [blame] | 734 | if (tmp_fh.fh_dentry == fh->fh_dentry) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 735 | fh_put(&tmp_fh); |
| 736 | return nfserr_noent; |
| 737 | } |
| 738 | fh_put(&tmp_fh); |
J. Bruce Fields | 0ff7ab4 | 2010-12-16 10:06:27 -0500 | [diff] [blame] | 739 | return nfsd_lookup(rqstp, fh, "..", 2, fh); |
| 740 | } |
| 741 | |
| 742 | static __be32 |
| 743 | nfsd4_lookupp(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 744 | void *arg) |
| 745 | { |
| 746 | return nfsd4_do_lookupp(rqstp, &cstate->current_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 747 | } |
| 748 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 749 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 750 | nfsd4_lookup(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 751 | struct nfsd4_lookup *lookup) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 752 | { |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 753 | return nfsd_lookup(rqstp, &cstate->current_fh, |
| 754 | lookup->lo_name, lookup->lo_len, |
| 755 | &cstate->current_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 756 | } |
| 757 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 758 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 759 | nfsd4_read(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 760 | struct nfsd4_read *read) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 761 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 762 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 763 | |
| 764 | /* no need to check permission - this will be done in nfsd_read() */ |
| 765 | |
NeilBrown | 7e06b7f | 2005-06-23 22:03:13 -0700 | [diff] [blame] | 766 | read->rd_filp = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 767 | if (read->rd_offset >= OFFSET_MAX) |
| 768 | return nfserr_inval; |
| 769 | |
J. Bruce Fields | 9b3234b | 2012-12-04 18:03:46 -0500 | [diff] [blame] | 770 | /* |
| 771 | * If we do a zero copy read, then a client will see read data |
| 772 | * that reflects the state of the file *after* performing the |
| 773 | * following compound. |
| 774 | * |
| 775 | * To ensure proper ordering, we therefore turn off zero copy if |
| 776 | * the client wants us to do more in this compound: |
| 777 | */ |
| 778 | if (!nfsd4_last_compound_op(rqstp)) |
| 779 | rqstp->rq_splice_ok = false; |
| 780 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 781 | nfs4_lock_state(); |
| 782 | /* check stateid */ |
Stanislav Kinsbursky | 5ccb006 | 2012-07-25 16:57:22 +0400 | [diff] [blame] | 783 | if ((status = nfs4_preprocess_stateid_op(SVC_NET(rqstp), |
| 784 | cstate, &read->rd_stateid, |
Benny Halevy | dd453df | 2009-04-03 08:28:41 +0300 | [diff] [blame] | 785 | RD_STATE, &read->rd_filp))) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 786 | dprintk("NFSD: nfsd4_read: couldn't process stateid!\n"); |
| 787 | goto out; |
| 788 | } |
NeilBrown | 7e06b7f | 2005-06-23 22:03:13 -0700 | [diff] [blame] | 789 | if (read->rd_filp) |
| 790 | get_file(read->rd_filp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 791 | status = nfs_ok; |
| 792 | out: |
| 793 | nfs4_unlock_state(); |
| 794 | read->rd_rqstp = rqstp; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 795 | read->rd_fhp = &cstate->current_fh; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 796 | return status; |
| 797 | } |
| 798 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 799 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 800 | nfsd4_readdir(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 801 | struct nfsd4_readdir *readdir) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 802 | { |
| 803 | u64 cookie = readdir->rd_cookie; |
| 804 | static const nfs4_verifier zeroverf; |
| 805 | |
| 806 | /* no need to check permission - this will be done in nfsd_readdir() */ |
| 807 | |
| 808 | if (readdir->rd_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1) |
| 809 | return nfserr_inval; |
| 810 | |
Andy Adamson | 7e70570 | 2009-04-03 08:29:11 +0300 | [diff] [blame] | 811 | readdir->rd_bmval[0] &= nfsd_suppattrs0(cstate->minorversion); |
| 812 | readdir->rd_bmval[1] &= nfsd_suppattrs1(cstate->minorversion); |
| 813 | readdir->rd_bmval[2] &= nfsd_suppattrs2(cstate->minorversion); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 814 | |
Bernd Schubert | 832023b | 2011-08-08 17:38:08 +0200 | [diff] [blame] | 815 | if ((cookie == 1) || (cookie == 2) || |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 816 | (cookie == 0 && memcmp(readdir->rd_verf.data, zeroverf.data, NFS4_VERIFIER_SIZE))) |
| 817 | return nfserr_bad_cookie; |
| 818 | |
| 819 | readdir->rd_rqstp = rqstp; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 820 | readdir->rd_fhp = &cstate->current_fh; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 821 | return nfs_ok; |
| 822 | } |
| 823 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 824 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 825 | nfsd4_readlink(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 826 | struct nfsd4_readlink *readlink) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 827 | { |
| 828 | readlink->rl_rqstp = rqstp; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 829 | readlink->rl_fhp = &cstate->current_fh; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 830 | return nfs_ok; |
| 831 | } |
| 832 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 833 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 834 | nfsd4_remove(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 835 | struct nfsd4_remove *remove) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 836 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 837 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 838 | |
Stanislav Kinsbursky | 5ccb006 | 2012-07-25 16:57:22 +0400 | [diff] [blame] | 839 | if (locks_in_grace(SVC_NET(rqstp))) |
NeilBrown | c815afc | 2005-06-23 22:03:00 -0700 | [diff] [blame] | 840 | return nfserr_grace; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 841 | status = nfsd_unlink(rqstp, &cstate->current_fh, 0, |
| 842 | remove->rm_name, remove->rm_namelen); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 843 | if (!status) { |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 844 | fh_unlock(&cstate->current_fh); |
| 845 | set_change_info(&remove->rm_cinfo, &cstate->current_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 846 | } |
| 847 | return status; |
| 848 | } |
| 849 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 850 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 851 | nfsd4_rename(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 852 | struct nfsd4_rename *rename) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 853 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 854 | __be32 status = nfserr_nofilehandle; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 855 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 856 | if (!cstate->save_fh.fh_dentry) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 857 | return status; |
Stanislav Kinsbursky | 5ccb006 | 2012-07-25 16:57:22 +0400 | [diff] [blame] | 858 | if (locks_in_grace(SVC_NET(rqstp)) && |
| 859 | !(cstate->save_fh.fh_export->ex_flags & NFSEXP_NOSUBTREECHECK)) |
NeilBrown | c815afc | 2005-06-23 22:03:00 -0700 | [diff] [blame] | 860 | return nfserr_grace; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 861 | status = nfsd_rename(rqstp, &cstate->save_fh, rename->rn_sname, |
| 862 | rename->rn_snamelen, &cstate->current_fh, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 863 | rename->rn_tname, rename->rn_tnamelen); |
J. Bruce Fields | 2a6cf94 | 2013-04-30 15:28:51 -0400 | [diff] [blame] | 864 | if (status) |
| 865 | return status; |
| 866 | set_change_info(&rename->rn_sinfo, &cstate->current_fh); |
| 867 | set_change_info(&rename->rn_tinfo, &cstate->save_fh); |
| 868 | return nfs_ok; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 869 | } |
| 870 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 871 | static __be32 |
Andy Adamson | dcb488a3 | 2007-07-17 04:04:51 -0700 | [diff] [blame] | 872 | nfsd4_secinfo(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 873 | struct nfsd4_secinfo *secinfo) |
| 874 | { |
| 875 | struct svc_fh resfh; |
| 876 | struct svc_export *exp; |
| 877 | struct dentry *dentry; |
| 878 | __be32 err; |
| 879 | |
| 880 | fh_init(&resfh, NFS4_FHSIZE); |
J. Bruce Fields | 29a78a3 | 2011-04-09 11:28:53 -0400 | [diff] [blame] | 881 | err = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, NFSD_MAY_EXEC); |
| 882 | if (err) |
| 883 | return err; |
Andy Adamson | dcb488a3 | 2007-07-17 04:04:51 -0700 | [diff] [blame] | 884 | err = nfsd_lookup_dentry(rqstp, &cstate->current_fh, |
| 885 | secinfo->si_name, secinfo->si_namelen, |
| 886 | &exp, &dentry); |
| 887 | if (err) |
| 888 | return err; |
| 889 | if (dentry->d_inode == NULL) { |
| 890 | exp_put(exp); |
| 891 | err = nfserr_noent; |
| 892 | } else |
| 893 | secinfo->si_exp = exp; |
| 894 | dput(dentry); |
J. Bruce Fields | 56560b9 | 2010-12-16 09:57:15 -0500 | [diff] [blame] | 895 | if (cstate->minorversion) |
| 896 | /* See rfc 5661 section 2.6.3.1.1.8 */ |
| 897 | fh_put(&cstate->current_fh); |
Andy Adamson | dcb488a3 | 2007-07-17 04:04:51 -0700 | [diff] [blame] | 898 | return err; |
| 899 | } |
| 900 | |
| 901 | static __be32 |
J. Bruce Fields | 04f4ad1 | 2010-12-16 09:51:13 -0500 | [diff] [blame] | 902 | nfsd4_secinfo_no_name(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 903 | struct nfsd4_secinfo_no_name *sin) |
| 904 | { |
| 905 | __be32 err; |
| 906 | |
| 907 | switch (sin->sin_style) { |
| 908 | case NFS4_SECINFO_STYLE4_CURRENT_FH: |
| 909 | break; |
| 910 | case NFS4_SECINFO_STYLE4_PARENT: |
| 911 | err = nfsd4_do_lookupp(rqstp, &cstate->current_fh); |
| 912 | if (err) |
| 913 | return err; |
| 914 | break; |
| 915 | default: |
| 916 | return nfserr_inval; |
| 917 | } |
| 918 | exp_get(cstate->current_fh.fh_export); |
| 919 | sin->sin_exp = cstate->current_fh.fh_export; |
| 920 | fh_put(&cstate->current_fh); |
| 921 | return nfs_ok; |
| 922 | } |
| 923 | |
| 924 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 925 | nfsd4_setattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 926 | struct nfsd4_setattr *setattr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 927 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 928 | __be32 status = nfs_ok; |
Al Viro | 96f6f98 | 2012-04-12 23:47:00 -0400 | [diff] [blame] | 929 | int err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 930 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 931 | if (setattr->sa_iattr.ia_valid & ATTR_SIZE) { |
| 932 | nfs4_lock_state(); |
Stanislav Kinsbursky | 5ccb006 | 2012-07-25 16:57:22 +0400 | [diff] [blame] | 933 | status = nfs4_preprocess_stateid_op(SVC_NET(rqstp), cstate, |
J. Bruce Fields | 6150ef0 | 2009-02-21 13:36:16 -0800 | [diff] [blame] | 934 | &setattr->sa_stateid, WR_STATE, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 935 | nfs4_unlock_state(); |
J. Bruce Fields | 375c554 | 2006-01-18 17:43:33 -0800 | [diff] [blame] | 936 | if (status) { |
Greg Banks | 3e3b480 | 2006-10-02 02:17:41 -0700 | [diff] [blame] | 937 | dprintk("NFSD: nfsd4_setattr: couldn't process stateid!\n"); |
J. Bruce Fields | 375c554 | 2006-01-18 17:43:33 -0800 | [diff] [blame] | 938 | return status; |
| 939 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 940 | } |
Al Viro | 96f6f98 | 2012-04-12 23:47:00 -0400 | [diff] [blame] | 941 | err = fh_want_write(&cstate->current_fh); |
| 942 | if (err) |
| 943 | return nfserrno(err); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 944 | status = nfs_ok; |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 945 | |
| 946 | status = check_attr_support(rqstp, cstate, setattr->sa_bmval, |
| 947 | nfsd_attrmask); |
| 948 | if (status) |
| 949 | goto out; |
| 950 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 951 | if (setattr->sa_acl != NULL) |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 952 | status = nfsd4_set_nfs4_acl(rqstp, &cstate->current_fh, |
| 953 | setattr->sa_acl); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 954 | if (status) |
Dave Hansen | 18f335a | 2008-02-15 14:37:38 -0800 | [diff] [blame] | 955 | goto out; |
David Quigley | 18032ca | 2013-05-02 13:19:10 -0400 | [diff] [blame] | 956 | if (setattr->sa_label.len) |
| 957 | status = nfsd4_set_nfs4_label(rqstp, &cstate->current_fh, |
| 958 | &setattr->sa_label); |
| 959 | if (status) |
| 960 | goto out; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 961 | status = nfsd_setattr(rqstp, &cstate->current_fh, &setattr->sa_iattr, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 962 | 0, (time_t)0); |
Dave Hansen | 18f335a | 2008-02-15 14:37:38 -0800 | [diff] [blame] | 963 | out: |
Al Viro | bad0dcf | 2011-11-23 12:03:18 -0500 | [diff] [blame] | 964 | fh_drop_write(&cstate->current_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 965 | return status; |
| 966 | } |
| 967 | |
J. Bruce Fields | ffe1137 | 2012-11-15 14:52:19 -0500 | [diff] [blame] | 968 | static int fill_in_write_vector(struct kvec *vec, struct nfsd4_write *write) |
| 969 | { |
| 970 | int i = 1; |
| 971 | int buflen = write->wr_buflen; |
| 972 | |
| 973 | vec[0].iov_base = write->wr_head.iov_base; |
| 974 | vec[0].iov_len = min_t(int, buflen, write->wr_head.iov_len); |
| 975 | buflen -= vec[0].iov_len; |
| 976 | |
| 977 | while (buflen) { |
| 978 | vec[i].iov_base = page_address(write->wr_pagelist[i - 1]); |
| 979 | vec[i].iov_len = min_t(int, PAGE_SIZE, buflen); |
| 980 | buflen -= vec[i].iov_len; |
| 981 | i++; |
| 982 | } |
| 983 | return i; |
| 984 | } |
| 985 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 986 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 987 | nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 988 | struct nfsd4_write *write) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 989 | { |
| 990 | stateid_t *stateid = &write->wr_stateid; |
| 991 | struct file *filp = NULL; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 992 | __be32 status = nfs_ok; |
David Shaw | 31dec25 | 2009-03-05 20:16:14 -0500 | [diff] [blame] | 993 | unsigned long cnt; |
J. Bruce Fields | ffe1137 | 2012-11-15 14:52:19 -0500 | [diff] [blame] | 994 | int nvecs; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 995 | |
| 996 | /* no need to check permission - this will be done in nfsd_write() */ |
| 997 | |
| 998 | if (write->wr_offset >= OFFSET_MAX) |
| 999 | return nfserr_inval; |
| 1000 | |
| 1001 | nfs4_lock_state(); |
Stanislav Kinsbursky | 5ccb006 | 2012-07-25 16:57:22 +0400 | [diff] [blame] | 1002 | status = nfs4_preprocess_stateid_op(SVC_NET(rqstp), |
| 1003 | cstate, stateid, WR_STATE, &filp); |
J. Bruce Fields | 375c554 | 2006-01-18 17:43:33 -0800 | [diff] [blame] | 1004 | if (status) { |
fanchaoting | b022032 | 2013-04-01 21:07:22 +0800 | [diff] [blame] | 1005 | nfs4_unlock_state(); |
J. Bruce Fields | 375c554 | 2006-01-18 17:43:33 -0800 | [diff] [blame] | 1006 | dprintk("NFSD: nfsd4_write: couldn't process stateid!\n"); |
| 1007 | return status; |
| 1008 | } |
fanchaoting | b022032 | 2013-04-01 21:07:22 +0800 | [diff] [blame] | 1009 | if (filp) |
| 1010 | get_file(filp); |
| 1011 | nfs4_unlock_state(); |
J. Bruce Fields | 375c554 | 2006-01-18 17:43:33 -0800 | [diff] [blame] | 1012 | |
David Shaw | 31dec25 | 2009-03-05 20:16:14 -0500 | [diff] [blame] | 1013 | cnt = write->wr_buflen; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1014 | write->wr_how_written = write->wr_stable_how; |
Stanislav Kinsbursky | b9c0ef8 | 2012-12-06 14:23:19 +0300 | [diff] [blame] | 1015 | gen_boot_verifier(&write->wr_verifier, SVC_NET(rqstp)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1016 | |
J. Bruce Fields | ffe1137 | 2012-11-15 14:52:19 -0500 | [diff] [blame] | 1017 | nvecs = fill_in_write_vector(rqstp->rq_vec, write); |
| 1018 | WARN_ON_ONCE(nvecs > ARRAY_SIZE(rqstp->rq_vec)); |
| 1019 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 1020 | status = nfsd_write(rqstp, &cstate->current_fh, filp, |
J. Bruce Fields | ffe1137 | 2012-11-15 14:52:19 -0500 | [diff] [blame] | 1021 | write->wr_offset, rqstp->rq_vec, nvecs, |
David Shaw | 31dec25 | 2009-03-05 20:16:14 -0500 | [diff] [blame] | 1022 | &cnt, &write->wr_how_written); |
NeilBrown | 7e06b7f | 2005-06-23 22:03:13 -0700 | [diff] [blame] | 1023 | if (filp) |
| 1024 | fput(filp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1025 | |
David Shaw | 31dec25 | 2009-03-05 20:16:14 -0500 | [diff] [blame] | 1026 | write->wr_bytes_written = cnt; |
| 1027 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1028 | return status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1029 | } |
| 1030 | |
| 1031 | /* This routine never returns NFS_OK! If there are no other errors, it |
| 1032 | * will return NFSERR_SAME or NFSERR_NOT_SAME depending on whether the |
| 1033 | * attributes matched. VERIFY is implemented by mapping NFSERR_SAME |
| 1034 | * to NFS_OK after the call; NVERIFY by mapping NFSERR_NOT_SAME to NFS_OK. |
| 1035 | */ |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 1036 | static __be32 |
J.Bruce Fields | c954e2a | 2006-12-13 00:35:31 -0800 | [diff] [blame] | 1037 | _nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 1038 | struct nfsd4_verify *verify) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1039 | { |
Al Viro | 2ebbc01 | 2006-10-19 23:28:58 -0700 | [diff] [blame] | 1040 | __be32 *buf, *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1041 | int count; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 1042 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1043 | |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 1044 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1045 | if (status) |
| 1046 | return status; |
| 1047 | |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 1048 | status = check_attr_support(rqstp, cstate, verify->ve_bmval, NULL); |
| 1049 | if (status) |
| 1050 | return status; |
| 1051 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1052 | if ((verify->ve_bmval[0] & FATTR4_WORD0_RDATTR_ERROR) |
| 1053 | || (verify->ve_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1)) |
| 1054 | return nfserr_inval; |
| 1055 | if (verify->ve_attrlen & 3) |
| 1056 | return nfserr_inval; |
| 1057 | |
| 1058 | /* count in words: |
| 1059 | * bitmap_len(1) + bitmap(2) + attr_len(1) = 4 |
| 1060 | */ |
| 1061 | count = 4 + (verify->ve_attrlen >> 2); |
| 1062 | buf = kmalloc(count << 2, GFP_KERNEL); |
| 1063 | if (!buf) |
J. Bruce Fields | 3e77246 | 2011-08-10 19:07:33 -0400 | [diff] [blame] | 1064 | return nfserr_jukebox; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1065 | |
J. Bruce Fields | 84822d0 | 2012-12-14 17:57:50 -0500 | [diff] [blame] | 1066 | p = buf; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 1067 | status = nfsd4_encode_fattr(&cstate->current_fh, |
| 1068 | cstate->current_fh.fh_export, |
J. Bruce Fields | 84822d0 | 2012-12-14 17:57:50 -0500 | [diff] [blame] | 1069 | cstate->current_fh.fh_dentry, &p, |
| 1070 | count, verify->ve_bmval, |
Frank Filz | 406a7ea | 2007-11-27 11:34:05 -0800 | [diff] [blame] | 1071 | rqstp, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1072 | |
| 1073 | /* this means that nfsd4_encode_fattr() ran out of space */ |
J. Bruce Fields | 84822d0 | 2012-12-14 17:57:50 -0500 | [diff] [blame] | 1074 | if (status == nfserr_resource) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1075 | status = nfserr_not_same; |
| 1076 | if (status) |
| 1077 | goto out_kfree; |
| 1078 | |
Benny Halevy | 95ec28c | 2009-04-03 08:29:08 +0300 | [diff] [blame] | 1079 | /* skip bitmap */ |
| 1080 | p = buf + 1 + ntohl(buf[0]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1081 | status = nfserr_not_same; |
| 1082 | if (ntohl(*p++) != verify->ve_attrlen) |
| 1083 | goto out_kfree; |
| 1084 | if (!memcmp(p, verify->ve_attrval, verify->ve_attrlen)) |
| 1085 | status = nfserr_same; |
| 1086 | |
| 1087 | out_kfree: |
| 1088 | kfree(buf); |
| 1089 | return status; |
| 1090 | } |
| 1091 | |
J.Bruce Fields | c954e2a | 2006-12-13 00:35:31 -0800 | [diff] [blame] | 1092 | static __be32 |
| 1093 | nfsd4_nverify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 1094 | struct nfsd4_verify *verify) |
| 1095 | { |
| 1096 | __be32 status; |
| 1097 | |
| 1098 | status = _nfsd4_verify(rqstp, cstate, verify); |
| 1099 | return status == nfserr_not_same ? nfs_ok : status; |
| 1100 | } |
| 1101 | |
| 1102 | static __be32 |
| 1103 | nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 1104 | struct nfsd4_verify *verify) |
| 1105 | { |
| 1106 | __be32 status; |
| 1107 | |
| 1108 | status = _nfsd4_verify(rqstp, cstate, verify); |
| 1109 | return status == nfserr_same ? nfs_ok : status; |
| 1110 | } |
| 1111 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1112 | /* |
| 1113 | * NULL call. |
| 1114 | */ |
Al Viro | 7111c66 | 2006-10-19 23:28:45 -0700 | [diff] [blame] | 1115 | static __be32 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1116 | nfsd4_proc_null(struct svc_rqst *rqstp, void *argp, void *resp) |
| 1117 | { |
| 1118 | return nfs_ok; |
| 1119 | } |
| 1120 | |
Shankar Anand | e2b2095 | 2006-07-10 04:45:44 -0700 | [diff] [blame] | 1121 | static inline void nfsd4_increment_op_stats(u32 opnum) |
| 1122 | { |
| 1123 | if (opnum >= FIRST_NFS4_OP && opnum <= LAST_NFS4_OP) |
| 1124 | nfsdstats.nfs4_opcount[opnum]++; |
| 1125 | } |
| 1126 | |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1127 | typedef __be32(*nfsd4op_func)(struct svc_rqst *, struct nfsd4_compound_state *, |
| 1128 | void *); |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1129 | typedef u32(*nfsd4op_rsize)(struct svc_rqst *, struct nfsd4_op *op); |
Tigran Mkrtchyan | 8b70484 | 2012-02-13 22:55:24 +0100 | [diff] [blame] | 1130 | typedef void(*stateid_setter)(struct nfsd4_compound_state *, void *); |
| 1131 | typedef void(*stateid_getter)(struct nfsd4_compound_state *, void *); |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1132 | |
Andy Adamson | f9bb94c | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1133 | enum nfsd4_op_flags { |
| 1134 | ALLOWED_WITHOUT_FH = 1 << 0, /* No current filehandle required */ |
Mi Jinlong | 5ece3ca | 2011-02-18 09:08:31 +0800 | [diff] [blame] | 1135 | ALLOWED_ON_ABSENT_FS = 1 << 1, /* ops processed on absent fs */ |
| 1136 | ALLOWED_AS_FIRST_OP = 1 << 2, /* ops reqired first in compound */ |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1137 | /* For rfc 5661 section 2.6.3.1.1: */ |
| 1138 | OP_HANDLES_WRONGSEC = 1 << 3, |
| 1139 | OP_IS_PUTFH_LIKE = 1 << 4, |
J. Bruce Fields | 1091006 | 2011-01-24 12:11:02 -0500 | [diff] [blame] | 1140 | /* |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 1141 | * These are the ops whose result size we estimate before |
| 1142 | * encoding, to avoid performing an op then not being able to |
| 1143 | * respond or cache a response. This includes writes and setattrs |
| 1144 | * as well as the operations usually called "nonidempotent": |
| 1145 | */ |
| 1146 | OP_MODIFIES_SOMETHING = 1 << 5, |
| 1147 | /* |
| 1148 | * Cache compounds containing these ops in the xid-based drc: |
J. Bruce Fields | 1091006 | 2011-01-24 12:11:02 -0500 | [diff] [blame] | 1149 | * We use the DRC for compounds containing non-idempotent |
| 1150 | * operations, *except* those that are 4.1-specific (since |
| 1151 | * sessions provide their own EOS), and except for stateful |
| 1152 | * operations other than setclientid and setclientid_confirm |
| 1153 | * (since sequence numbers provide EOS for open, lock, etc in |
| 1154 | * the v4.0 case). |
| 1155 | */ |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 1156 | OP_CACHEME = 1 << 6, |
Tigran Mkrtchyan | 8b70484 | 2012-02-13 22:55:24 +0100 | [diff] [blame] | 1157 | /* |
| 1158 | * These are ops which clear current state id. |
| 1159 | */ |
| 1160 | OP_CLEAR_STATEID = 1 << 7, |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 1161 | }; |
| 1162 | |
| 1163 | struct nfsd4_operation { |
| 1164 | nfsd4op_func op_func; |
| 1165 | u32 op_flags; |
| 1166 | char *op_name; |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1167 | /* Try to get response size before operation */ |
| 1168 | nfsd4op_rsize op_rsize_bop; |
Bryan Schumaker | 24ff99c | 2012-08-14 15:55:08 -0400 | [diff] [blame] | 1169 | stateid_getter op_get_currentstateid; |
| 1170 | stateid_setter op_set_currentstateid; |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1171 | }; |
| 1172 | |
| 1173 | static struct nfsd4_operation nfsd4_ops[]; |
| 1174 | |
Trond Myklebust | 8f199b8 | 2012-03-20 15:11:17 -0400 | [diff] [blame] | 1175 | #ifdef NFSD_DEBUG |
Adrian Bunk | f1c7f79 | 2008-08-08 19:26:42 +0300 | [diff] [blame] | 1176 | static const char *nfsd4_op_name(unsigned opnum); |
Trond Myklebust | 8f199b8 | 2012-03-20 15:11:17 -0400 | [diff] [blame] | 1177 | #endif |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1178 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1179 | /* |
J. Bruce Fields | 5771635 | 2010-04-21 12:27:19 -0400 | [diff] [blame] | 1180 | * Enforce NFSv4.1 COMPOUND ordering rules: |
Andy Adamson | f9bb94c | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1181 | * |
J. Bruce Fields | 5771635 | 2010-04-21 12:27:19 -0400 | [diff] [blame] | 1182 | * Also note, enforced elsewhere: |
| 1183 | * - SEQUENCE other than as first op results in |
| 1184 | * NFS4ERR_SEQUENCE_POS. (Enforced in nfsd4_sequence().) |
J. Bruce Fields | 1d1bc8f | 2010-10-04 23:12:59 -0400 | [diff] [blame] | 1185 | * - BIND_CONN_TO_SESSION must be the only op in its compound. |
| 1186 | * (Enforced in nfsd4_bind_conn_to_session().) |
J. Bruce Fields | 5771635 | 2010-04-21 12:27:19 -0400 | [diff] [blame] | 1187 | * - DESTROY_SESSION must be the final operation in a compound, if |
| 1188 | * sessionid's in SEQUENCE and DESTROY_SESSION are the same. |
| 1189 | * (Enforced in nfsd4_destroy_session().) |
Andy Adamson | f9bb94c | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1190 | */ |
J. Bruce Fields | 5771635 | 2010-04-21 12:27:19 -0400 | [diff] [blame] | 1191 | static __be32 nfs41_check_op_ordering(struct nfsd4_compoundargs *args) |
Andy Adamson | f9bb94c | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1192 | { |
J. Bruce Fields | 5771635 | 2010-04-21 12:27:19 -0400 | [diff] [blame] | 1193 | struct nfsd4_op *op = &args->ops[0]; |
| 1194 | |
| 1195 | /* These ordering requirements don't apply to NFSv4.0: */ |
| 1196 | if (args->minorversion == 0) |
| 1197 | return nfs_ok; |
| 1198 | /* This is weird, but OK, not our problem: */ |
| 1199 | if (args->opcnt == 0) |
| 1200 | return nfs_ok; |
| 1201 | if (op->status == nfserr_op_illegal) |
| 1202 | return nfs_ok; |
| 1203 | if (!(nfsd4_ops[op->opnum].op_flags & ALLOWED_AS_FIRST_OP)) |
| 1204 | return nfserr_op_not_in_session; |
| 1205 | if (op->opnum == OP_SEQUENCE) |
| 1206 | return nfs_ok; |
| 1207 | if (args->opcnt != 1) |
| 1208 | return nfserr_not_only_op; |
| 1209 | return nfs_ok; |
Andy Adamson | f9bb94c | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1210 | } |
| 1211 | |
J. Bruce Fields | 22b0321 | 2011-04-09 11:23:24 -0400 | [diff] [blame] | 1212 | static inline struct nfsd4_operation *OPDESC(struct nfsd4_op *op) |
| 1213 | { |
| 1214 | return &nfsd4_ops[op->opnum]; |
| 1215 | } |
| 1216 | |
J. Bruce Fields | 1091006 | 2011-01-24 12:11:02 -0500 | [diff] [blame] | 1217 | bool nfsd4_cache_this_op(struct nfsd4_op *op) |
| 1218 | { |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 1219 | return OPDESC(op)->op_flags & OP_CACHEME; |
J. Bruce Fields | 1091006 | 2011-01-24 12:11:02 -0500 | [diff] [blame] | 1220 | } |
| 1221 | |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1222 | static bool need_wrongsec_check(struct svc_rqst *rqstp) |
| 1223 | { |
| 1224 | struct nfsd4_compoundres *resp = rqstp->rq_resp; |
| 1225 | struct nfsd4_compoundargs *argp = rqstp->rq_argp; |
| 1226 | struct nfsd4_op *this = &argp->ops[resp->opcnt - 1]; |
| 1227 | struct nfsd4_op *next = &argp->ops[resp->opcnt]; |
| 1228 | struct nfsd4_operation *thisd; |
| 1229 | struct nfsd4_operation *nextd; |
| 1230 | |
| 1231 | thisd = OPDESC(this); |
| 1232 | /* |
| 1233 | * Most ops check wronsec on our own; only the putfh-like ops |
| 1234 | * have special rules. |
| 1235 | */ |
| 1236 | if (!(thisd->op_flags & OP_IS_PUTFH_LIKE)) |
| 1237 | return false; |
| 1238 | /* |
| 1239 | * rfc 5661 2.6.3.1.1.6: don't bother erroring out a |
| 1240 | * put-filehandle operation if we're not going to use the |
| 1241 | * result: |
| 1242 | */ |
| 1243 | if (argp->opcnt == resp->opcnt) |
| 1244 | return false; |
| 1245 | |
| 1246 | nextd = OPDESC(next); |
| 1247 | /* |
| 1248 | * Rest of 2.6.3.1.1: certain operations will return WRONGSEC |
| 1249 | * errors themselves as necessary; others should check for them |
| 1250 | * now: |
| 1251 | */ |
| 1252 | return !(nextd->op_flags & OP_HANDLES_WRONGSEC); |
| 1253 | } |
| 1254 | |
Andy Adamson | f9bb94c | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1255 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1256 | * COMPOUND call. |
| 1257 | */ |
Al Viro | 7111c66 | 2006-10-19 23:28:45 -0700 | [diff] [blame] | 1258 | static __be32 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1259 | nfsd4_proc_compound(struct svc_rqst *rqstp, |
| 1260 | struct nfsd4_compoundargs *args, |
| 1261 | struct nfsd4_compoundres *resp) |
| 1262 | { |
| 1263 | struct nfsd4_op *op; |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1264 | struct nfsd4_operation *opdesc; |
Andy Adamson | e354d57 | 2009-03-28 11:30:52 +0300 | [diff] [blame] | 1265 | struct nfsd4_compound_state *cstate = &resp->cstate; |
J.Bruce Fields | e571019 | 2006-12-13 00:35:20 -0800 | [diff] [blame] | 1266 | int slack_bytes; |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1267 | u32 plen = 0; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 1268 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1269 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1270 | resp->xbuf = &rqstp->rq_res; |
Andy Adamson | e354d57 | 2009-03-28 11:30:52 +0300 | [diff] [blame] | 1271 | resp->p = rqstp->rq_res.head[0].iov_base + |
| 1272 | rqstp->rq_res.head[0].iov_len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1273 | resp->tagp = resp->p; |
| 1274 | /* reserve space for: taglen, tag, and opcnt */ |
| 1275 | resp->p += 2 + XDR_QUADLEN(args->taglen); |
| 1276 | resp->end = rqstp->rq_res.head[0].iov_base + PAGE_SIZE; |
| 1277 | resp->taglen = args->taglen; |
| 1278 | resp->tag = args->tag; |
| 1279 | resp->opcnt = 0; |
| 1280 | resp->rqstp = rqstp; |
Andy Adamson | d87a8ad | 2009-04-03 08:28:53 +0300 | [diff] [blame] | 1281 | resp->cstate.minorversion = args->minorversion; |
Andy Adamson | e354d57 | 2009-03-28 11:30:52 +0300 | [diff] [blame] | 1282 | resp->cstate.replay_owner = NULL; |
J. Bruce Fields | 26c0c75 | 2010-04-24 15:35:43 -0400 | [diff] [blame] | 1283 | resp->cstate.session = NULL; |
Andy Adamson | e354d57 | 2009-03-28 11:30:52 +0300 | [diff] [blame] | 1284 | fh_init(&resp->cstate.current_fh, NFS4_FHSIZE); |
| 1285 | fh_init(&resp->cstate.save_fh, NFS4_FHSIZE); |
NeilBrown | 8ff30fa | 2010-08-12 17:04:07 +1000 | [diff] [blame] | 1286 | /* |
| 1287 | * Don't use the deferral mechanism for NFSv4; compounds make it |
| 1288 | * too hard to avoid non-idempotency problems. |
| 1289 | */ |
| 1290 | rqstp->rq_usedeferral = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1291 | |
| 1292 | /* |
| 1293 | * According to RFC3010, this takes precedence over all other errors. |
| 1294 | */ |
| 1295 | status = nfserr_minor_vers_mismatch; |
Benny Halevy | 8daf220 | 2009-04-03 08:28:59 +0300 | [diff] [blame] | 1296 | if (args->minorversion > nfsd_supported_minorversion) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1297 | goto out; |
| 1298 | |
J. Bruce Fields | 5771635 | 2010-04-21 12:27:19 -0400 | [diff] [blame] | 1299 | status = nfs41_check_op_ordering(args); |
| 1300 | if (status) { |
Andy Adamson | f9bb94c | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1301 | op = &args->ops[0]; |
J. Bruce Fields | 5771635 | 2010-04-21 12:27:19 -0400 | [diff] [blame] | 1302 | op->status = status; |
Andy Adamson | f9bb94c | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1303 | goto encode_op; |
| 1304 | } |
| 1305 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1306 | while (!status && resp->opcnt < args->opcnt) { |
| 1307 | op = &args->ops[resp->opcnt++]; |
| 1308 | |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1309 | dprintk("nfsv4 compound op #%d/%d: %d (%s)\n", |
| 1310 | resp->opcnt, args->opcnt, op->opnum, |
| 1311 | nfsd4_op_name(op->opnum)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1312 | /* |
| 1313 | * The XDR decode routines may have pre-set op->status; |
| 1314 | * for example, if there is a miscellaneous XDR error |
| 1315 | * it will be set to nfserr_bad_xdr. |
| 1316 | */ |
J. Bruce Fields | 9d313b1 | 2013-02-28 12:51:49 -0800 | [diff] [blame] | 1317 | if (op->status) { |
| 1318 | if (op->opnum == OP_OPEN) |
| 1319 | op->status = nfsd4_open_omfg(rqstp, cstate, op); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1320 | goto encode_op; |
J. Bruce Fields | 9d313b1 | 2013-02-28 12:51:49 -0800 | [diff] [blame] | 1321 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1322 | |
| 1323 | /* We must be able to encode a successful response to |
| 1324 | * this operation, with enough room left over to encode a |
| 1325 | * failed response to the next operation. If we don't |
| 1326 | * have enough room, fail with ERR_RESOURCE. |
| 1327 | */ |
J.Bruce Fields | e571019 | 2006-12-13 00:35:20 -0800 | [diff] [blame] | 1328 | slack_bytes = (char *)resp->end - (char *)resp->p; |
| 1329 | if (slack_bytes < COMPOUND_SLACK_SPACE |
| 1330 | + COMPOUND_ERR_SLACK_SPACE) { |
| 1331 | BUG_ON(slack_bytes < COMPOUND_ERR_SLACK_SPACE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1332 | op->status = nfserr_resource; |
| 1333 | goto encode_op; |
| 1334 | } |
| 1335 | |
J. Bruce Fields | 22b0321 | 2011-04-09 11:23:24 -0400 | [diff] [blame] | 1336 | opdesc = OPDESC(op); |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1337 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 1338 | if (!cstate->current_fh.fh_dentry) { |
J.Bruce Fields | 27d630e | 2006-12-13 00:35:43 -0800 | [diff] [blame] | 1339 | if (!(opdesc->op_flags & ALLOWED_WITHOUT_FH)) { |
J.Bruce Fields | 42ca099 | 2006-10-04 02:16:20 -0700 | [diff] [blame] | 1340 | op->status = nfserr_nofilehandle; |
| 1341 | goto encode_op; |
| 1342 | } |
J.Bruce Fields | eeac294 | 2006-12-13 00:35:39 -0800 | [diff] [blame] | 1343 | } else if (cstate->current_fh.fh_export->ex_fslocs.migrated && |
| 1344 | !(opdesc->op_flags & ALLOWED_ON_ABSENT_FS)) { |
J.Bruce Fields | 42ca099 | 2006-10-04 02:16:20 -0700 | [diff] [blame] | 1345 | op->status = nfserr_moved; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1346 | goto encode_op; |
| 1347 | } |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1348 | |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1349 | /* If op is non-idempotent */ |
| 1350 | if (opdesc->op_flags & OP_MODIFIES_SOMETHING) { |
| 1351 | plen = opdesc->op_rsize_bop(rqstp, op); |
| 1352 | op->status = nfsd4_check_resp_size(resp, plen); |
| 1353 | } |
| 1354 | |
| 1355 | if (op->status) |
| 1356 | goto encode_op; |
| 1357 | |
J. Bruce Fields | b600de7 | 2013-02-28 11:55:46 -0800 | [diff] [blame] | 1358 | if (opdesc->op_get_currentstateid) |
| 1359 | opdesc->op_get_currentstateid(cstate, &op->u); |
| 1360 | op->status = opdesc->op_func(rqstp, cstate, &op->u); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1361 | |
Tigran Mkrtchyan | 8b70484 | 2012-02-13 22:55:24 +0100 | [diff] [blame] | 1362 | if (!op->status) { |
| 1363 | if (opdesc->op_set_currentstateid) |
| 1364 | opdesc->op_set_currentstateid(cstate, &op->u); |
| 1365 | |
| 1366 | if (opdesc->op_flags & OP_CLEAR_STATEID) |
Tigran Mkrtchyan | 37c593c | 2012-02-13 22:55:32 +0100 | [diff] [blame] | 1367 | clear_current_stateid(cstate); |
Tigran Mkrtchyan | 8b70484 | 2012-02-13 22:55:24 +0100 | [diff] [blame] | 1368 | |
| 1369 | if (need_wrongsec_check(rqstp)) |
| 1370 | op->status = check_nfsd_access(cstate->current_fh.fh_export, rqstp); |
| 1371 | } |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1372 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1373 | encode_op: |
Andy Adamson | 49557cc | 2009-07-23 19:02:16 -0400 | [diff] [blame] | 1374 | /* Only from SEQUENCE */ |
Andy Adamson | da3846a | 2009-04-03 08:28:22 +0300 | [diff] [blame] | 1375 | if (resp->cstate.status == nfserr_replay_cache) { |
| 1376 | dprintk("%s NFS4.1 replay from cache\n", __func__); |
Andy Adamson | abfabf8 | 2009-07-23 19:02:18 -0400 | [diff] [blame] | 1377 | status = op->status; |
Andy Adamson | da3846a | 2009-04-03 08:28:22 +0300 | [diff] [blame] | 1378 | goto out; |
| 1379 | } |
Al Viro | a90b061 | 2006-10-19 23:29:03 -0700 | [diff] [blame] | 1380 | if (op->status == nfserr_replay_me) { |
J.Bruce Fields | a4f1706a9 | 2006-12-13 00:35:28 -0800 | [diff] [blame] | 1381 | op->replay = &cstate->replay_owner->so_replay; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1382 | nfsd4_encode_replay(resp, op); |
| 1383 | status = op->status = op->replay->rp_status; |
| 1384 | } else { |
| 1385 | nfsd4_encode_operation(resp, op); |
| 1386 | status = op->status; |
| 1387 | } |
Benny Halevy | 0407717 | 2008-12-15 19:40:49 +0200 | [diff] [blame] | 1388 | |
| 1389 | dprintk("nfsv4 compound op %p opcnt %d #%d: %d: status %d\n", |
| 1390 | args->ops, args->opcnt, resp->opcnt, op->opnum, |
| 1391 | be32_to_cpu(status)); |
| 1392 | |
J.Bruce Fields | a4f1706a9 | 2006-12-13 00:35:28 -0800 | [diff] [blame] | 1393 | if (cstate->replay_owner) { |
J. Bruce Fields | 5ec094c | 2011-08-30 17:02:48 -0400 | [diff] [blame] | 1394 | nfs4_unlock_state(); |
J.Bruce Fields | a4f1706a9 | 2006-12-13 00:35:28 -0800 | [diff] [blame] | 1395 | cstate->replay_owner = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1396 | } |
NeilBrown | 7e06b7f | 2005-06-23 22:03:13 -0700 | [diff] [blame] | 1397 | /* XXX Ugh, we need to get rid of this kind of special case: */ |
| 1398 | if (op->opnum == OP_READ && op->u.read.rd_filp) |
| 1399 | fput(op->u.read.rd_filp); |
Shankar Anand | e2b2095 | 2006-07-10 04:45:44 -0700 | [diff] [blame] | 1400 | |
| 1401 | nfsd4_increment_op_stats(op->opnum); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1402 | } |
| 1403 | |
Andy Adamson | da3846a | 2009-04-03 08:28:22 +0300 | [diff] [blame] | 1404 | resp->cstate.status = status; |
Andy Adamson | e354d57 | 2009-03-28 11:30:52 +0300 | [diff] [blame] | 1405 | fh_put(&resp->cstate.current_fh); |
| 1406 | fh_put(&resp->cstate.save_fh); |
| 1407 | BUG_ON(resp->cstate.replay_owner); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1408 | out: |
Andy Adamson | 2f42587 | 2009-04-03 08:27:32 +0300 | [diff] [blame] | 1409 | /* Reset deferral mechanism for RPC deferrals */ |
| 1410 | rqstp->rq_usedeferral = 1; |
J. Bruce Fields | 3b12cd9 | 2008-05-05 17:17:44 -0400 | [diff] [blame] | 1411 | dprintk("nfsv4 compound returned %d\n", ntohl(status)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1412 | return status; |
| 1413 | } |
| 1414 | |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1415 | #define op_encode_hdr_size (2) |
| 1416 | #define op_encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) |
| 1417 | #define op_encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) |
| 1418 | #define op_encode_change_info_maxsz (5) |
| 1419 | #define nfs4_fattr_bitmap_maxsz (4) |
| 1420 | |
| 1421 | #define op_encode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) |
| 1422 | #define op_encode_lock_denied_maxsz (8 + op_encode_lockowner_maxsz) |
| 1423 | |
| 1424 | #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) |
| 1425 | |
| 1426 | #define op_encode_ace_maxsz (3 + nfs4_owner_maxsz) |
| 1427 | #define op_encode_delegation_maxsz (1 + op_encode_stateid_maxsz + 1 + \ |
| 1428 | op_encode_ace_maxsz) |
| 1429 | |
| 1430 | #define op_encode_channel_attrs_maxsz (6 + 1 + 1) |
| 1431 | |
| 1432 | static inline u32 nfsd4_only_status_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1433 | { |
| 1434 | return (op_encode_hdr_size) * sizeof(__be32); |
| 1435 | } |
| 1436 | |
| 1437 | static inline u32 nfsd4_status_stateid_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1438 | { |
| 1439 | return (op_encode_hdr_size + op_encode_stateid_maxsz)* sizeof(__be32); |
| 1440 | } |
| 1441 | |
| 1442 | static inline u32 nfsd4_commit_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1443 | { |
| 1444 | return (op_encode_hdr_size + op_encode_verifier_maxsz) * sizeof(__be32); |
| 1445 | } |
| 1446 | |
| 1447 | static inline u32 nfsd4_create_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1448 | { |
| 1449 | return (op_encode_hdr_size + op_encode_change_info_maxsz |
| 1450 | + nfs4_fattr_bitmap_maxsz) * sizeof(__be32); |
| 1451 | } |
| 1452 | |
| 1453 | static inline u32 nfsd4_link_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1454 | { |
| 1455 | return (op_encode_hdr_size + op_encode_change_info_maxsz) |
| 1456 | * sizeof(__be32); |
| 1457 | } |
| 1458 | |
| 1459 | static inline u32 nfsd4_lock_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1460 | { |
| 1461 | return (op_encode_hdr_size + op_encode_lock_denied_maxsz) |
| 1462 | * sizeof(__be32); |
| 1463 | } |
| 1464 | |
| 1465 | static inline u32 nfsd4_open_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1466 | { |
| 1467 | return (op_encode_hdr_size + op_encode_stateid_maxsz |
| 1468 | + op_encode_change_info_maxsz + 1 |
| 1469 | + nfs4_fattr_bitmap_maxsz |
| 1470 | + op_encode_delegation_maxsz) * sizeof(__be32); |
| 1471 | } |
| 1472 | |
| 1473 | static inline u32 nfsd4_read_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1474 | { |
| 1475 | u32 maxcount = 0, rlen = 0; |
| 1476 | |
| 1477 | maxcount = svc_max_payload(rqstp); |
| 1478 | rlen = op->u.read.rd_length; |
| 1479 | |
| 1480 | if (rlen > maxcount) |
| 1481 | rlen = maxcount; |
| 1482 | |
| 1483 | return (op_encode_hdr_size + 2) * sizeof(__be32) + rlen; |
| 1484 | } |
| 1485 | |
| 1486 | static inline u32 nfsd4_readdir_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1487 | { |
| 1488 | u32 rlen = op->u.readdir.rd_maxcount; |
| 1489 | |
| 1490 | if (rlen > PAGE_SIZE) |
| 1491 | rlen = PAGE_SIZE; |
| 1492 | |
| 1493 | return (op_encode_hdr_size + op_encode_verifier_maxsz) |
| 1494 | * sizeof(__be32) + rlen; |
| 1495 | } |
| 1496 | |
| 1497 | static inline u32 nfsd4_remove_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1498 | { |
| 1499 | return (op_encode_hdr_size + op_encode_change_info_maxsz) |
| 1500 | * sizeof(__be32); |
| 1501 | } |
| 1502 | |
| 1503 | static inline u32 nfsd4_rename_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1504 | { |
| 1505 | return (op_encode_hdr_size + op_encode_change_info_maxsz |
| 1506 | + op_encode_change_info_maxsz) * sizeof(__be32); |
| 1507 | } |
| 1508 | |
| 1509 | static inline u32 nfsd4_setattr_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1510 | { |
| 1511 | return (op_encode_hdr_size + nfs4_fattr_bitmap_maxsz) * sizeof(__be32); |
| 1512 | } |
| 1513 | |
| 1514 | static inline u32 nfsd4_setclientid_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1515 | { |
| 1516 | return (op_encode_hdr_size + 2 + 1024) * sizeof(__be32); |
| 1517 | } |
| 1518 | |
| 1519 | static inline u32 nfsd4_write_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1520 | { |
| 1521 | return (op_encode_hdr_size + op_encode_verifier_maxsz) * sizeof(__be32); |
| 1522 | } |
| 1523 | |
| 1524 | static inline u32 nfsd4_exchange_id_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1525 | { |
| 1526 | return (op_encode_hdr_size + 2 + 1 + /* eir_clientid, eir_sequenceid */\ |
| 1527 | 1 + 1 + 0 + /* eir_flags, spr_how, SP4_NONE (for now) */\ |
| 1528 | 2 + /*eir_server_owner.so_minor_id */\ |
| 1529 | /* eir_server_owner.so_major_id<> */\ |
| 1530 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 +\ |
| 1531 | /* eir_server_scope<> */\ |
| 1532 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 +\ |
| 1533 | 1 + /* eir_server_impl_id array length */\ |
| 1534 | 0 /* ignored eir_server_impl_id contents */) * sizeof(__be32); |
| 1535 | } |
| 1536 | |
| 1537 | static inline u32 nfsd4_bind_conn_to_session_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1538 | { |
| 1539 | return (op_encode_hdr_size + \ |
| 1540 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + /* bctsr_sessid */\ |
| 1541 | 2 /* bctsr_dir, use_conn_in_rdma_mode */) * sizeof(__be32); |
| 1542 | } |
| 1543 | |
| 1544 | static inline u32 nfsd4_create_session_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1545 | { |
| 1546 | return (op_encode_hdr_size + \ |
| 1547 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + /* sessionid */\ |
| 1548 | 2 + /* csr_sequence, csr_flags */\ |
| 1549 | op_encode_channel_attrs_maxsz + \ |
| 1550 | op_encode_channel_attrs_maxsz) * sizeof(__be32); |
| 1551 | } |
| 1552 | |
Benny Halevy | 2076601 | 2009-03-28 11:32:05 +0300 | [diff] [blame] | 1553 | static struct nfsd4_operation nfsd4_ops[] = { |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1554 | [OP_ACCESS] = { |
| 1555 | .op_func = (nfsd4op_func)nfsd4_access, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1556 | .op_name = "OP_ACCESS", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1557 | }, |
| 1558 | [OP_CLOSE] = { |
| 1559 | .op_func = (nfsd4op_func)nfsd4_close, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1560 | .op_flags = OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1561 | .op_name = "OP_CLOSE", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1562 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize, |
Tigran Mkrtchyan | 8b70484 | 2012-02-13 22:55:24 +0100 | [diff] [blame] | 1563 | .op_get_currentstateid = (stateid_getter)nfsd4_get_closestateid, |
| 1564 | .op_set_currentstateid = (stateid_setter)nfsd4_set_closestateid, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1565 | }, |
| 1566 | [OP_COMMIT] = { |
| 1567 | .op_func = (nfsd4op_func)nfsd4_commit, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1568 | .op_flags = OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1569 | .op_name = "OP_COMMIT", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1570 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_commit_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1571 | }, |
| 1572 | [OP_CREATE] = { |
| 1573 | .op_func = (nfsd4op_func)nfsd4_create, |
Tigran Mkrtchyan | d147105 | 2012-02-13 22:55:29 +0100 | [diff] [blame] | 1574 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME | OP_CLEAR_STATEID, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1575 | .op_name = "OP_CREATE", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1576 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_create_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1577 | }, |
| 1578 | [OP_DELEGRETURN] = { |
| 1579 | .op_func = (nfsd4op_func)nfsd4_delegreturn, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1580 | .op_flags = OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1581 | .op_name = "OP_DELEGRETURN", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1582 | .op_rsize_bop = nfsd4_only_status_rsize, |
Tigran Mkrtchyan | 9428fe1 | 2012-02-13 22:55:31 +0100 | [diff] [blame] | 1583 | .op_get_currentstateid = (stateid_getter)nfsd4_get_delegreturnstateid, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1584 | }, |
| 1585 | [OP_GETATTR] = { |
| 1586 | .op_func = (nfsd4op_func)nfsd4_getattr, |
J.Bruce Fields | eeac294 | 2006-12-13 00:35:39 -0800 | [diff] [blame] | 1587 | .op_flags = ALLOWED_ON_ABSENT_FS, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1588 | .op_name = "OP_GETATTR", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1589 | }, |
| 1590 | [OP_GETFH] = { |
| 1591 | .op_func = (nfsd4op_func)nfsd4_getfh, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1592 | .op_name = "OP_GETFH", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1593 | }, |
| 1594 | [OP_LINK] = { |
| 1595 | .op_func = (nfsd4op_func)nfsd4_link, |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 1596 | .op_flags = ALLOWED_ON_ABSENT_FS | OP_MODIFIES_SOMETHING |
| 1597 | | OP_CACHEME, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1598 | .op_name = "OP_LINK", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1599 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_link_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1600 | }, |
| 1601 | [OP_LOCK] = { |
| 1602 | .op_func = (nfsd4op_func)nfsd4_lock, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1603 | .op_flags = OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1604 | .op_name = "OP_LOCK", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1605 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_lock_rsize, |
Tigran Mkrtchyan | 62cd4a5 | 2012-02-13 22:55:25 +0100 | [diff] [blame] | 1606 | .op_set_currentstateid = (stateid_setter)nfsd4_set_lockstateid, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1607 | }, |
| 1608 | [OP_LOCKT] = { |
| 1609 | .op_func = (nfsd4op_func)nfsd4_lockt, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1610 | .op_name = "OP_LOCKT", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1611 | }, |
| 1612 | [OP_LOCKU] = { |
| 1613 | .op_func = (nfsd4op_func)nfsd4_locku, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1614 | .op_flags = OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1615 | .op_name = "OP_LOCKU", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1616 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize, |
Tigran Mkrtchyan | 62cd4a5 | 2012-02-13 22:55:25 +0100 | [diff] [blame] | 1617 | .op_get_currentstateid = (stateid_getter)nfsd4_get_lockustateid, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1618 | }, |
| 1619 | [OP_LOOKUP] = { |
| 1620 | .op_func = (nfsd4op_func)nfsd4_lookup, |
Tigran Mkrtchyan | d147105 | 2012-02-13 22:55:29 +0100 | [diff] [blame] | 1621 | .op_flags = OP_HANDLES_WRONGSEC | OP_CLEAR_STATEID, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1622 | .op_name = "OP_LOOKUP", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1623 | }, |
| 1624 | [OP_LOOKUPP] = { |
| 1625 | .op_func = (nfsd4op_func)nfsd4_lookupp, |
Tigran Mkrtchyan | d147105 | 2012-02-13 22:55:29 +0100 | [diff] [blame] | 1626 | .op_flags = OP_HANDLES_WRONGSEC | OP_CLEAR_STATEID, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1627 | .op_name = "OP_LOOKUPP", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1628 | }, |
| 1629 | [OP_NVERIFY] = { |
| 1630 | .op_func = (nfsd4op_func)nfsd4_nverify, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1631 | .op_name = "OP_NVERIFY", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1632 | }, |
| 1633 | [OP_OPEN] = { |
| 1634 | .op_func = (nfsd4op_func)nfsd4_open, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1635 | .op_flags = OP_HANDLES_WRONGSEC | OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1636 | .op_name = "OP_OPEN", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1637 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_open_rsize, |
Tigran Mkrtchyan | 8b70484 | 2012-02-13 22:55:24 +0100 | [diff] [blame] | 1638 | .op_set_currentstateid = (stateid_setter)nfsd4_set_openstateid, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1639 | }, |
| 1640 | [OP_OPEN_CONFIRM] = { |
| 1641 | .op_func = (nfsd4op_func)nfsd4_open_confirm, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1642 | .op_flags = OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1643 | .op_name = "OP_OPEN_CONFIRM", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1644 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1645 | }, |
| 1646 | [OP_OPEN_DOWNGRADE] = { |
| 1647 | .op_func = (nfsd4op_func)nfsd4_open_downgrade, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1648 | .op_flags = OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1649 | .op_name = "OP_OPEN_DOWNGRADE", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1650 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize, |
Tigran Mkrtchyan | 9428fe1 | 2012-02-13 22:55:31 +0100 | [diff] [blame] | 1651 | .op_get_currentstateid = (stateid_getter)nfsd4_get_opendowngradestateid, |
| 1652 | .op_set_currentstateid = (stateid_setter)nfsd4_set_opendowngradestateid, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1653 | }, |
| 1654 | [OP_PUTFH] = { |
| 1655 | .op_func = (nfsd4op_func)nfsd4_putfh, |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1656 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
Tigran Mkrtchyan | 80e01cc | 2012-02-13 22:55:27 +0100 | [diff] [blame] | 1657 | | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING |
| 1658 | | OP_CLEAR_STATEID, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1659 | .op_name = "OP_PUTFH", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1660 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1661 | }, |
J.Bruce Fields | eeac294 | 2006-12-13 00:35:39 -0800 | [diff] [blame] | 1662 | [OP_PUTPUBFH] = { |
J. Bruce Fields | a1c8c4d | 2009-03-09 12:17:29 -0400 | [diff] [blame] | 1663 | .op_func = (nfsd4op_func)nfsd4_putrootfh, |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1664 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
Tigran Mkrtchyan | 80e01cc | 2012-02-13 22:55:27 +0100 | [diff] [blame] | 1665 | | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING |
| 1666 | | OP_CLEAR_STATEID, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1667 | .op_name = "OP_PUTPUBFH", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1668 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
J.Bruce Fields | eeac294 | 2006-12-13 00:35:39 -0800 | [diff] [blame] | 1669 | }, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1670 | [OP_PUTROOTFH] = { |
| 1671 | .op_func = (nfsd4op_func)nfsd4_putrootfh, |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1672 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
Tigran Mkrtchyan | 80e01cc | 2012-02-13 22:55:27 +0100 | [diff] [blame] | 1673 | | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING |
| 1674 | | OP_CLEAR_STATEID, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1675 | .op_name = "OP_PUTROOTFH", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1676 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1677 | }, |
| 1678 | [OP_READ] = { |
| 1679 | .op_func = (nfsd4op_func)nfsd4_read, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1680 | .op_flags = OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1681 | .op_name = "OP_READ", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1682 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_read_rsize, |
Tigran Mkrtchyan | 30813e2 | 2012-02-13 22:55:26 +0100 | [diff] [blame] | 1683 | .op_get_currentstateid = (stateid_getter)nfsd4_get_readstateid, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1684 | }, |
| 1685 | [OP_READDIR] = { |
| 1686 | .op_func = (nfsd4op_func)nfsd4_readdir, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1687 | .op_flags = OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1688 | .op_name = "OP_READDIR", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1689 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_readdir_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1690 | }, |
| 1691 | [OP_READLINK] = { |
| 1692 | .op_func = (nfsd4op_func)nfsd4_readlink, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1693 | .op_name = "OP_READLINK", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1694 | }, |
| 1695 | [OP_REMOVE] = { |
| 1696 | .op_func = (nfsd4op_func)nfsd4_remove, |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 1697 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1698 | .op_name = "OP_REMOVE", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1699 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_remove_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1700 | }, |
| 1701 | [OP_RENAME] = { |
| 1702 | .op_func = (nfsd4op_func)nfsd4_rename, |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 1703 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1704 | .op_name = "OP_RENAME", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1705 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_rename_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1706 | }, |
| 1707 | [OP_RENEW] = { |
| 1708 | .op_func = (nfsd4op_func)nfsd4_renew, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1709 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
| 1710 | | OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1711 | .op_name = "OP_RENEW", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1712 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
| 1713 | |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1714 | }, |
| 1715 | [OP_RESTOREFH] = { |
| 1716 | .op_func = (nfsd4op_func)nfsd4_restorefh, |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1717 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1718 | | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1719 | .op_name = "OP_RESTOREFH", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1720 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1721 | }, |
| 1722 | [OP_SAVEFH] = { |
| 1723 | .op_func = (nfsd4op_func)nfsd4_savefh, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1724 | .op_flags = OP_HANDLES_WRONGSEC | OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1725 | .op_name = "OP_SAVEFH", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1726 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1727 | }, |
Andy Adamson | dcb488a3 | 2007-07-17 04:04:51 -0700 | [diff] [blame] | 1728 | [OP_SECINFO] = { |
| 1729 | .op_func = (nfsd4op_func)nfsd4_secinfo, |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1730 | .op_flags = OP_HANDLES_WRONGSEC, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1731 | .op_name = "OP_SECINFO", |
Andy Adamson | dcb488a3 | 2007-07-17 04:04:51 -0700 | [diff] [blame] | 1732 | }, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1733 | [OP_SETATTR] = { |
| 1734 | .op_func = (nfsd4op_func)nfsd4_setattr, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1735 | .op_name = "OP_SETATTR", |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 1736 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1737 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_setattr_rsize, |
Tigran Mkrtchyan | 1e97b51 | 2012-02-13 22:55:30 +0100 | [diff] [blame] | 1738 | .op_get_currentstateid = (stateid_getter)nfsd4_get_setattrstateid, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1739 | }, |
| 1740 | [OP_SETCLIENTID] = { |
| 1741 | .op_func = (nfsd4op_func)nfsd4_setclientid, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1742 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 1743 | | OP_MODIFIES_SOMETHING | OP_CACHEME, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1744 | .op_name = "OP_SETCLIENTID", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1745 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_setclientid_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1746 | }, |
| 1747 | [OP_SETCLIENTID_CONFIRM] = { |
| 1748 | .op_func = (nfsd4op_func)nfsd4_setclientid_confirm, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1749 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 1750 | | OP_MODIFIES_SOMETHING | OP_CACHEME, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1751 | .op_name = "OP_SETCLIENTID_CONFIRM", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1752 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1753 | }, |
| 1754 | [OP_VERIFY] = { |
| 1755 | .op_func = (nfsd4op_func)nfsd4_verify, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1756 | .op_name = "OP_VERIFY", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1757 | }, |
| 1758 | [OP_WRITE] = { |
| 1759 | .op_func = (nfsd4op_func)nfsd4_write, |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 1760 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1761 | .op_name = "OP_WRITE", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1762 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_write_rsize, |
Tigran Mkrtchyan | 30813e2 | 2012-02-13 22:55:26 +0100 | [diff] [blame] | 1763 | .op_get_currentstateid = (stateid_getter)nfsd4_get_writestateid, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1764 | }, |
| 1765 | [OP_RELEASE_LOCKOWNER] = { |
| 1766 | .op_func = (nfsd4op_func)nfsd4_release_lockowner, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1767 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
| 1768 | | OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1769 | .op_name = "OP_RELEASE_LOCKOWNER", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1770 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1771 | }, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 1772 | |
| 1773 | /* NFSv4.1 operations */ |
| 1774 | [OP_EXCHANGE_ID] = { |
| 1775 | .op_func = (nfsd4op_func)nfsd4_exchange_id, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1776 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
| 1777 | | OP_MODIFIES_SOMETHING, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 1778 | .op_name = "OP_EXCHANGE_ID", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1779 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_exchange_id_rsize, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 1780 | }, |
J. Bruce Fields | cb73a9f | 2012-11-01 18:09:48 -0400 | [diff] [blame] | 1781 | [OP_BACKCHANNEL_CTL] = { |
| 1782 | .op_func = (nfsd4op_func)nfsd4_backchannel_ctl, |
| 1783 | .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING, |
| 1784 | .op_name = "OP_BACKCHANNEL_CTL", |
| 1785 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
| 1786 | }, |
J. Bruce Fields | 1d1bc8f | 2010-10-04 23:12:59 -0400 | [diff] [blame] | 1787 | [OP_BIND_CONN_TO_SESSION] = { |
| 1788 | .op_func = (nfsd4op_func)nfsd4_bind_conn_to_session, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1789 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
| 1790 | | OP_MODIFIES_SOMETHING, |
J. Bruce Fields | 1d1bc8f | 2010-10-04 23:12:59 -0400 | [diff] [blame] | 1791 | .op_name = "OP_BIND_CONN_TO_SESSION", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1792 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_bind_conn_to_session_rsize, |
J. Bruce Fields | 1d1bc8f | 2010-10-04 23:12:59 -0400 | [diff] [blame] | 1793 | }, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 1794 | [OP_CREATE_SESSION] = { |
| 1795 | .op_func = (nfsd4op_func)nfsd4_create_session, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1796 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
| 1797 | | OP_MODIFIES_SOMETHING, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 1798 | .op_name = "OP_CREATE_SESSION", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1799 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_create_session_rsize, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 1800 | }, |
| 1801 | [OP_DESTROY_SESSION] = { |
| 1802 | .op_func = (nfsd4op_func)nfsd4_destroy_session, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1803 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
| 1804 | | OP_MODIFIES_SOMETHING, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 1805 | .op_name = "OP_DESTROY_SESSION", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1806 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 1807 | }, |
| 1808 | [OP_SEQUENCE] = { |
| 1809 | .op_func = (nfsd4op_func)nfsd4_sequence, |
Andy Adamson | f9bb94c | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1810 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 1811 | .op_name = "OP_SEQUENCE", |
| 1812 | }, |
Benny Halevy | 094b5d7 | 2011-06-16 11:39:10 -0400 | [diff] [blame] | 1813 | [OP_DESTROY_CLIENTID] = { |
Mi Jinlong | 345c284 | 2011-10-20 17:51:39 +0800 | [diff] [blame] | 1814 | .op_func = (nfsd4op_func)nfsd4_destroy_clientid, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1815 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
| 1816 | | OP_MODIFIES_SOMETHING, |
Benny Halevy | 094b5d7 | 2011-06-16 11:39:10 -0400 | [diff] [blame] | 1817 | .op_name = "OP_DESTROY_CLIENTID", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1818 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
Benny Halevy | 094b5d7 | 2011-06-16 11:39:10 -0400 | [diff] [blame] | 1819 | }, |
J. Bruce Fields | 4dc6ec0 | 2010-04-19 15:11:28 -0400 | [diff] [blame] | 1820 | [OP_RECLAIM_COMPLETE] = { |
| 1821 | .op_func = (nfsd4op_func)nfsd4_reclaim_complete, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1822 | .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING, |
J. Bruce Fields | 4dc6ec0 | 2010-04-19 15:11:28 -0400 | [diff] [blame] | 1823 | .op_name = "OP_RECLAIM_COMPLETE", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1824 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
J. Bruce Fields | 4dc6ec0 | 2010-04-19 15:11:28 -0400 | [diff] [blame] | 1825 | }, |
J. Bruce Fields | 04f4ad1 | 2010-12-16 09:51:13 -0500 | [diff] [blame] | 1826 | [OP_SECINFO_NO_NAME] = { |
| 1827 | .op_func = (nfsd4op_func)nfsd4_secinfo_no_name, |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1828 | .op_flags = OP_HANDLES_WRONGSEC, |
J. Bruce Fields | 04f4ad1 | 2010-12-16 09:51:13 -0500 | [diff] [blame] | 1829 | .op_name = "OP_SECINFO_NO_NAME", |
| 1830 | }, |
Bryan Schumaker | 1745680 | 2011-07-13 10:50:48 -0400 | [diff] [blame] | 1831 | [OP_TEST_STATEID] = { |
| 1832 | .op_func = (nfsd4op_func)nfsd4_test_stateid, |
| 1833 | .op_flags = ALLOWED_WITHOUT_FH, |
| 1834 | .op_name = "OP_TEST_STATEID", |
| 1835 | }, |
Bryan Schumaker | e1ca12d | 2011-07-13 11:04:21 -0400 | [diff] [blame] | 1836 | [OP_FREE_STATEID] = { |
| 1837 | .op_func = (nfsd4op_func)nfsd4_free_stateid, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1838 | .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING, |
Bryan Schumaker | e1ca12d | 2011-07-13 11:04:21 -0400 | [diff] [blame] | 1839 | .op_name = "OP_FREE_STATEID", |
J. Bruce Fields | a1dc695 | 2012-12-17 18:17:13 -0500 | [diff] [blame] | 1840 | .op_get_currentstateid = (stateid_getter)nfsd4_get_freestateid, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1841 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
Bryan Schumaker | e1ca12d | 2011-07-13 11:04:21 -0400 | [diff] [blame] | 1842 | }, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1843 | }; |
| 1844 | |
Trond Myklebust | 8f199b8 | 2012-03-20 15:11:17 -0400 | [diff] [blame] | 1845 | #ifdef NFSD_DEBUG |
Adrian Bunk | f1c7f79 | 2008-08-08 19:26:42 +0300 | [diff] [blame] | 1846 | static const char *nfsd4_op_name(unsigned opnum) |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1847 | { |
| 1848 | if (opnum < ARRAY_SIZE(nfsd4_ops)) |
| 1849 | return nfsd4_ops[opnum].op_name; |
| 1850 | return "unknown_operation"; |
| 1851 | } |
Trond Myklebust | 8f199b8 | 2012-03-20 15:11:17 -0400 | [diff] [blame] | 1852 | #endif |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1853 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1854 | #define nfsd4_voidres nfsd4_voidargs |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1855 | struct nfsd4_voidargs { int dummy; }; |
| 1856 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1857 | static struct svc_procedure nfsd_procedures4[2] = { |
Yu Zhiguo | 0a93a47 | 2009-05-19 14:09:54 +0800 | [diff] [blame] | 1858 | [NFSPROC4_NULL] = { |
| 1859 | .pc_func = (svc_procfunc) nfsd4_proc_null, |
| 1860 | .pc_encode = (kxdrproc_t) nfs4svc_encode_voidres, |
| 1861 | .pc_argsize = sizeof(struct nfsd4_voidargs), |
| 1862 | .pc_ressize = sizeof(struct nfsd4_voidres), |
| 1863 | .pc_cachetype = RC_NOCACHE, |
| 1864 | .pc_xdrressize = 1, |
| 1865 | }, |
| 1866 | [NFSPROC4_COMPOUND] = { |
| 1867 | .pc_func = (svc_procfunc) nfsd4_proc_compound, |
| 1868 | .pc_decode = (kxdrproc_t) nfs4svc_decode_compoundargs, |
| 1869 | .pc_encode = (kxdrproc_t) nfs4svc_encode_compoundres, |
| 1870 | .pc_argsize = sizeof(struct nfsd4_compoundargs), |
| 1871 | .pc_ressize = sizeof(struct nfsd4_compoundres), |
J. Bruce Fields | 3e98abf | 2011-07-16 17:15:10 -0400 | [diff] [blame] | 1872 | .pc_release = nfsd4_release_compoundargs, |
Yu Zhiguo | 0a93a47 | 2009-05-19 14:09:54 +0800 | [diff] [blame] | 1873 | .pc_cachetype = RC_NOCACHE, |
| 1874 | .pc_xdrressize = NFSD_BUFSIZE/4, |
| 1875 | }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1876 | }; |
| 1877 | |
| 1878 | struct svc_version nfsd_version4 = { |
| 1879 | .vs_vers = 4, |
| 1880 | .vs_nproc = 2, |
| 1881 | .vs_proc = nfsd_procedures4, |
| 1882 | .vs_dispatch = nfsd_dispatch, |
| 1883 | .vs_xdrsize = NFS4_SVC_XDRSIZE, |
| 1884 | }; |
| 1885 | |
| 1886 | /* |
| 1887 | * Local variables: |
| 1888 | * c-basic-offset: 8 |
| 1889 | * End: |
| 1890 | */ |