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" |
Christoph Hellwig | 4ac7249 | 2013-12-20 05:16:55 -0800 | [diff] [blame] | 44 | #include "acl.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 45 | |
David Quigley | 18032ca | 2013-05-02 13:19:10 -0400 | [diff] [blame] | 46 | #ifdef CONFIG_NFSD_V4_SECURITY_LABEL |
| 47 | #include <linux/security.h> |
| 48 | |
| 49 | static inline void |
| 50 | nfsd4_security_inode_setsecctx(struct svc_fh *resfh, struct xdr_netobj *label, u32 *bmval) |
| 51 | { |
| 52 | struct inode *inode = resfh->fh_dentry->d_inode; |
| 53 | int status; |
| 54 | |
| 55 | mutex_lock(&inode->i_mutex); |
| 56 | status = security_inode_setsecctx(resfh->fh_dentry, |
| 57 | label->data, label->len); |
| 58 | mutex_unlock(&inode->i_mutex); |
| 59 | |
| 60 | if (status) |
| 61 | /* |
| 62 | * XXX: We should really fail the whole open, but we may |
| 63 | * already have created a new file, so it may be too |
| 64 | * late. For now this seems the least of evils: |
| 65 | */ |
| 66 | bmval[2] &= ~FATTR4_WORD2_SECURITY_LABEL; |
| 67 | |
| 68 | return; |
| 69 | } |
| 70 | #else |
| 71 | static inline void |
| 72 | nfsd4_security_inode_setsecctx(struct svc_fh *resfh, struct xdr_netobj *label, u32 *bmval) |
| 73 | { } |
| 74 | #endif |
| 75 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 76 | #define NFSDDBG_FACILITY NFSDDBG_PROC |
| 77 | |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 78 | static u32 nfsd_attrmask[] = { |
| 79 | NFSD_WRITEABLE_ATTRS_WORD0, |
| 80 | NFSD_WRITEABLE_ATTRS_WORD1, |
| 81 | NFSD_WRITEABLE_ATTRS_WORD2 |
| 82 | }; |
| 83 | |
| 84 | static u32 nfsd41_ex_attrmask[] = { |
| 85 | NFSD_SUPPATTR_EXCLCREAT_WORD0, |
| 86 | NFSD_SUPPATTR_EXCLCREAT_WORD1, |
| 87 | NFSD_SUPPATTR_EXCLCREAT_WORD2 |
| 88 | }; |
| 89 | |
| 90 | static __be32 |
| 91 | check_attr_support(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 92 | u32 *bmval, u32 *writable) |
| 93 | { |
| 94 | struct dentry *dentry = cstate->current_fh.fh_dentry; |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 95 | |
| 96 | /* |
| 97 | * Check about attributes are supported by the NFSv4 server or not. |
| 98 | * According to spec, unsupported attributes return ERR_ATTRNOTSUPP. |
| 99 | */ |
| 100 | if ((bmval[0] & ~nfsd_suppattrs0(cstate->minorversion)) || |
| 101 | (bmval[1] & ~nfsd_suppattrs1(cstate->minorversion)) || |
| 102 | (bmval[2] & ~nfsd_suppattrs2(cstate->minorversion))) |
| 103 | return nfserr_attrnotsupp; |
| 104 | |
| 105 | /* |
Trond Myklebust | a06b126 | 2009-08-31 15:16:11 -0400 | [diff] [blame] | 106 | * Check FATTR4_WORD0_ACL can be supported |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 107 | * in current environment or not. |
| 108 | */ |
| 109 | if (bmval[0] & FATTR4_WORD0_ACL) { |
| 110 | if (!IS_POSIXACL(dentry->d_inode)) |
| 111 | return nfserr_attrnotsupp; |
| 112 | } |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 113 | |
| 114 | /* |
| 115 | * According to spec, read-only attributes return ERR_INVAL. |
| 116 | */ |
| 117 | if (writable) { |
| 118 | if ((bmval[0] & ~writable[0]) || (bmval[1] & ~writable[1]) || |
| 119 | (bmval[2] & ~writable[2])) |
| 120 | return nfserr_inval; |
| 121 | } |
| 122 | |
| 123 | return nfs_ok; |
| 124 | } |
| 125 | |
| 126 | static __be32 |
| 127 | nfsd4_check_open_attributes(struct svc_rqst *rqstp, |
| 128 | struct nfsd4_compound_state *cstate, struct nfsd4_open *open) |
| 129 | { |
| 130 | __be32 status = nfs_ok; |
| 131 | |
| 132 | if (open->op_create == NFS4_OPEN_CREATE) { |
| 133 | if (open->op_createmode == NFS4_CREATE_UNCHECKED |
| 134 | || open->op_createmode == NFS4_CREATE_GUARDED) |
| 135 | status = check_attr_support(rqstp, cstate, |
| 136 | open->op_bmval, nfsd_attrmask); |
| 137 | else if (open->op_createmode == NFS4_CREATE_EXCLUSIVE4_1) |
| 138 | status = check_attr_support(rqstp, cstate, |
| 139 | open->op_bmval, nfsd41_ex_attrmask); |
| 140 | } |
| 141 | |
| 142 | return status; |
| 143 | } |
| 144 | |
Yu Zhiguo | 9208faf | 2009-07-06 17:24:16 +0800 | [diff] [blame] | 145 | static int |
| 146 | is_create_with_attrs(struct nfsd4_open *open) |
| 147 | { |
| 148 | return open->op_create == NFS4_OPEN_CREATE |
| 149 | && (open->op_createmode == NFS4_CREATE_UNCHECKED |
| 150 | || open->op_createmode == NFS4_CREATE_GUARDED |
| 151 | || open->op_createmode == NFS4_CREATE_EXCLUSIVE4_1); |
| 152 | } |
| 153 | |
| 154 | /* |
| 155 | * if error occurs when setting the acl, just clear the acl bit |
| 156 | * in the returned attr bitmap. |
| 157 | */ |
| 158 | static void |
| 159 | do_set_nfs4_acl(struct svc_rqst *rqstp, struct svc_fh *fhp, |
| 160 | struct nfs4_acl *acl, u32 *bmval) |
| 161 | { |
| 162 | __be32 status; |
| 163 | |
| 164 | status = nfsd4_set_nfs4_acl(rqstp, fhp, acl); |
| 165 | if (status) |
| 166 | /* |
| 167 | * We should probably fail the whole open at this point, |
| 168 | * but we've already created the file, so it's too late; |
| 169 | * So this seems the least of evils: |
| 170 | */ |
| 171 | bmval[0] &= ~FATTR4_WORD0_ACL; |
| 172 | } |
| 173 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 174 | static inline void |
| 175 | fh_dup2(struct svc_fh *dst, struct svc_fh *src) |
| 176 | { |
| 177 | fh_put(dst); |
| 178 | dget(src->fh_dentry); |
| 179 | if (src->fh_export) |
| 180 | cache_get(&src->fh_export->h); |
| 181 | *dst = *src; |
| 182 | } |
| 183 | |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 184 | static __be32 |
J. Bruce Fields | dc730e1 | 2006-10-17 00:10:13 -0700 | [diff] [blame] | 185 | 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] | 186 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 187 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 188 | |
| 189 | if (open->op_truncate && |
| 190 | !(open->op_share_access & NFS4_SHARE_ACCESS_WRITE)) |
| 191 | return nfserr_inval; |
| 192 | |
J. Bruce Fields | a043226 | 2011-08-25 10:48:39 -0400 | [diff] [blame] | 193 | accmode |= NFSD_MAY_READ_IF_EXEC; |
| 194 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 195 | if (open->op_share_access & NFS4_SHARE_ACCESS_READ) |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 196 | accmode |= NFSD_MAY_READ; |
J. Bruce Fields | 9801d8a | 2006-10-17 00:10:14 -0700 | [diff] [blame] | 197 | if (open->op_share_access & NFS4_SHARE_ACCESS_WRITE) |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 198 | accmode |= (NFSD_MAY_WRITE | NFSD_MAY_TRUNC); |
J. Bruce Fields | 57ecb34 | 2009-12-01 19:42:57 -0500 | [diff] [blame] | 199 | if (open->op_share_deny & NFS4_SHARE_DENY_READ) |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 200 | accmode |= NFSD_MAY_WRITE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 201 | |
| 202 | status = fh_verify(rqstp, current_fh, S_IFREG, accmode); |
| 203 | |
| 204 | return status; |
| 205 | } |
| 206 | |
J. Bruce Fields | aadab6c | 2011-08-15 16:55:02 -0400 | [diff] [blame] | 207 | static __be32 nfsd_check_obj_isreg(struct svc_fh *fh) |
| 208 | { |
| 209 | umode_t mode = fh->fh_dentry->d_inode->i_mode; |
| 210 | |
| 211 | if (S_ISREG(mode)) |
| 212 | return nfs_ok; |
| 213 | if (S_ISDIR(mode)) |
| 214 | return nfserr_isdir; |
| 215 | /* |
| 216 | * Using err_symlink as our catch-all case may look odd; but |
| 217 | * there's no other obvious error for this case in 4.0, and we |
| 218 | * happen to know that it will cause the linux v4 client to do |
| 219 | * the right thing on attempts to open something other than a |
| 220 | * regular file. |
| 221 | */ |
| 222 | return nfserr_symlink; |
| 223 | } |
| 224 | |
J. Bruce Fields | bbc9c36 | 2013-03-22 18:03:49 -0400 | [diff] [blame] | 225 | 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] | 226 | { |
J. Bruce Fields | bbc9c36 | 2013-03-22 18:03:49 -0400 | [diff] [blame] | 227 | if (nfsd4_has_session(cstate)) |
| 228 | return; |
| 229 | fh_copy_shallow(&open->op_openowner->oo_owner.so_replay.rp_openfh, |
| 230 | &resfh->fh_handle); |
| 231 | } |
| 232 | |
| 233 | static __be32 |
J. Bruce Fields | c0e6bee | 2012-01-27 17:26:06 -0500 | [diff] [blame] | 234 | do_open_lookup(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_open *open, struct svc_fh **resfh) |
J. Bruce Fields | bbc9c36 | 2013-03-22 18:03:49 -0400 | [diff] [blame] | 235 | { |
| 236 | struct svc_fh *current_fh = &cstate->current_fh; |
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 | c0e6bee | 2012-01-27 17:26:06 -0500 | [diff] [blame] | 240 | *resfh = kmalloc(sizeof(struct svc_fh), GFP_KERNEL); |
| 241 | if (!*resfh) |
J. Bruce Fields | 59deeb9 | 2012-01-27 16:49:55 -0500 | [diff] [blame] | 242 | return nfserr_jukebox; |
J. Bruce Fields | c0e6bee | 2012-01-27 17:26:06 -0500 | [diff] [blame] | 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 | c0e6bee | 2012-01-27 17:26:06 -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) |
J. Bruce Fields | c0e6bee | 2012-01-27 17:26:06 -0500 | [diff] [blame] | 273 | nfsd4_security_inode_setsecctx(*resfh, &open->op_label, open->op_bmval); |
David Quigley | 18032ca | 2013-05-02 13:19:10 -0400 | [diff] [blame] | 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 | 4335723 | 2014-01-24 18:04:40 -0500 | [diff] [blame] | 283 | } else |
| 284 | /* |
| 285 | * Note this may exit with the parent still locked. |
| 286 | * We will hold the lock until nfsd4_open's final |
| 287 | * lookup, to prevent renames or unlinks until we've had |
| 288 | * a chance to an acquire a delegation if appropriate. |
| 289 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 290 | status = nfsd_lookup(rqstp, current_fh, |
J. Bruce Fields | c0e6bee | 2012-01-27 17:26:06 -0500 | [diff] [blame] | 291 | open->op_fname.data, open->op_fname.len, *resfh); |
J. Bruce Fields | af85852 | 2006-11-08 17:44:39 -0800 | [diff] [blame] | 292 | if (status) |
| 293 | goto out; |
J. Bruce Fields | c0e6bee | 2012-01-27 17:26:06 -0500 | [diff] [blame] | 294 | status = nfsd_check_obj_isreg(*resfh); |
J. Bruce Fields | 9dc4e6c | 2012-04-09 18:06:49 -0400 | [diff] [blame] | 295 | if (status) |
| 296 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 297 | |
Yu Zhiguo | 9208faf | 2009-07-06 17:24:16 +0800 | [diff] [blame] | 298 | if (is_create_with_attrs(open) && open->op_acl != NULL) |
J. Bruce Fields | c0e6bee | 2012-01-27 17:26:06 -0500 | [diff] [blame] | 299 | do_set_nfs4_acl(rqstp, *resfh, open->op_acl, open->op_bmval); |
Yu Zhiguo | 9208faf | 2009-07-06 17:24:16 +0800 | [diff] [blame] | 300 | |
J. Bruce Fields | c0e6bee | 2012-01-27 17:26:06 -0500 | [diff] [blame] | 301 | nfsd4_set_open_owner_reply_cache(cstate, open, *resfh); |
Neil Brown | 7007c90 | 2012-12-07 15:40:55 -0500 | [diff] [blame] | 302 | accmode = NFSD_MAY_NOP; |
J. Bruce Fields | 89f6c33 | 2013-06-19 15:47:37 -0400 | [diff] [blame] | 303 | if (open->op_created || |
| 304 | open->op_claim_type == NFS4_OPEN_CLAIM_DELEGATE_CUR) |
Neil Brown | 7007c90 | 2012-12-07 15:40:55 -0500 | [diff] [blame] | 305 | accmode |= NFSD_MAY_OWNER_OVERRIDE; |
J. Bruce Fields | c0e6bee | 2012-01-27 17:26:06 -0500 | [diff] [blame] | 306 | status = do_open_permission(rqstp, *resfh, open, accmode); |
J. Bruce Fields | 41fd1e4 | 2012-01-27 16:26:02 -0500 | [diff] [blame] | 307 | set_change_info(&open->op_cinfo, current_fh); |
J. Bruce Fields | af85852 | 2006-11-08 17:44:39 -0800 | [diff] [blame] | 308 | out: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 309 | return status; |
| 310 | } |
| 311 | |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 312 | static __be32 |
J. Bruce Fields | bbc9c36 | 2013-03-22 18:03:49 -0400 | [diff] [blame] | 313 | 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] | 314 | { |
J. Bruce Fields | bbc9c36 | 2013-03-22 18:03:49 -0400 | [diff] [blame] | 315 | struct svc_fh *current_fh = &cstate->current_fh; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 316 | __be32 status; |
J. Bruce Fields | 9f415eb | 2013-05-03 16:09:09 -0400 | [diff] [blame] | 317 | int accmode = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 318 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 319 | /* We don't know the target directory, and therefore can not |
| 320 | * set the change info |
| 321 | */ |
| 322 | |
| 323 | memset(&open->op_cinfo, 0, sizeof(struct nfsd4_change_info)); |
| 324 | |
J. Bruce Fields | bbc9c36 | 2013-03-22 18:03:49 -0400 | [diff] [blame] | 325 | nfsd4_set_open_owner_reply_cache(cstate, open, current_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 326 | |
| 327 | open->op_truncate = (open->op_iattr.ia_valid & ATTR_SIZE) && |
| 328 | (open->op_iattr.ia_size == 0); |
J. Bruce Fields | 9f415eb | 2013-05-03 16:09:09 -0400 | [diff] [blame] | 329 | /* |
| 330 | * In the delegation case, the client is telling us about an |
| 331 | * open that it *already* performed locally, some time ago. We |
| 332 | * should let it succeed now if possible. |
| 333 | * |
| 334 | * In the case of a CLAIM_FH open, on the other hand, the client |
| 335 | * may be counting on us to enforce permissions (the Linux 4.1 |
| 336 | * client uses this for normal opens, for example). |
| 337 | */ |
| 338 | if (open->op_claim_type == NFS4_OPEN_CLAIM_DELEG_CUR_FH) |
| 339 | accmode = NFSD_MAY_OWNER_OVERRIDE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 340 | |
J. Bruce Fields | 9f415eb | 2013-05-03 16:09:09 -0400 | [diff] [blame] | 341 | status = do_open_permission(rqstp, current_fh, open, accmode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 342 | |
| 343 | return status; |
| 344 | } |
| 345 | |
Andy Adamson | 60adfc5 | 2009-04-03 08:28:50 +0300 | [diff] [blame] | 346 | static void |
| 347 | copy_clientid(clientid_t *clid, struct nfsd4_session *session) |
| 348 | { |
| 349 | struct nfsd4_sessionid *sid = |
| 350 | (struct nfsd4_sessionid *)session->se_sessionid.data; |
| 351 | |
| 352 | clid->cl_boot = sid->clientid.cl_boot; |
| 353 | clid->cl_id = sid->clientid.cl_id; |
| 354 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 355 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 356 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 357 | nfsd4_open(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
J.Bruce Fields | a4f1706a9 | 2006-12-13 00:35:28 -0800 | [diff] [blame] | 358 | struct nfsd4_open *open) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 359 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 360 | __be32 status; |
J. Bruce Fields | c0e6bee | 2012-01-27 17:26:06 -0500 | [diff] [blame] | 361 | struct svc_fh *resfh = NULL; |
Andy Adamson | 6668958 | 2009-04-03 08:28:45 +0300 | [diff] [blame] | 362 | struct nfsd4_compoundres *resp; |
Stanislav Kinsbursky | 3320fef19 | 2012-11-14 18:22:07 +0300 | [diff] [blame] | 363 | struct net *net = SVC_NET(rqstp); |
| 364 | struct nfsd_net *nn = net_generic(net, nfsd_net_id); |
Andy Adamson | 6668958 | 2009-04-03 08:28:45 +0300 | [diff] [blame] | 365 | |
J. Bruce Fields | fe0750e | 2011-07-30 23:33:59 -0400 | [diff] [blame] | 366 | dprintk("NFSD: nfsd4_open filename %.*s op_openowner %p\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 367 | (int)open->op_fname.len, open->op_fname.data, |
J. Bruce Fields | fe0750e | 2011-07-30 23:33:59 -0400 | [diff] [blame] | 368 | open->op_openowner); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 369 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 370 | /* This check required by spec. */ |
| 371 | if (open->op_create && open->op_claim_type != NFS4_OPEN_CLAIM_NULL) |
| 372 | return nfserr_inval; |
| 373 | |
J. Bruce Fields | 856121b | 2011-10-13 11:37:11 -0400 | [diff] [blame] | 374 | open->op_created = 0; |
Mi Jinlong | ab1350b | 2011-07-14 15:06:26 +0800 | [diff] [blame] | 375 | /* |
| 376 | * RFC5661 18.51.3 |
| 377 | * Before RECLAIM_COMPLETE done, server should deny new lock |
| 378 | */ |
| 379 | if (nfsd4_has_session(cstate) && |
Jeff Layton | a52d726 | 2012-03-21 09:52:02 -0400 | [diff] [blame] | 380 | !test_bit(NFSD4_CLIENT_RECLAIM_COMPLETE, |
| 381 | &cstate->session->se_client->cl_flags) && |
Mi Jinlong | ab1350b | 2011-07-14 15:06:26 +0800 | [diff] [blame] | 382 | open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS) |
| 383 | return nfserr_grace; |
| 384 | |
Andy Adamson | 60adfc5 | 2009-04-03 08:28:50 +0300 | [diff] [blame] | 385 | if (nfsd4_has_session(cstate)) |
| 386 | copy_clientid(&open->op_clientid, cstate->session); |
| 387 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 388 | nfs4_lock_state(); |
| 389 | |
| 390 | /* check seqid for replay. set nfs4_owner */ |
Andy Adamson | 6668958 | 2009-04-03 08:28:45 +0300 | [diff] [blame] | 391 | resp = rqstp->rq_resp; |
Stanislav Kinsbursky | 3320fef19 | 2012-11-14 18:22:07 +0300 | [diff] [blame] | 392 | status = nfsd4_process_open1(&resp->cstate, open, nn); |
Al Viro | a90b061 | 2006-10-19 23:29:03 -0700 | [diff] [blame] | 393 | if (status == nfserr_replay_me) { |
J. Bruce Fields | fe0750e | 2011-07-30 23:33:59 -0400 | [diff] [blame] | 394 | struct nfs4_replay *rp = &open->op_openowner->oo_owner.so_replay; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 395 | fh_put(&cstate->current_fh); |
J. Bruce Fields | a4773c0 | 2009-02-02 17:23:10 -0500 | [diff] [blame] | 396 | fh_copy_shallow(&cstate->current_fh.fh_handle, |
| 397 | &rp->rp_openfh); |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 398 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 399 | if (status) |
| 400 | dprintk("nfsd4_open: replay failed" |
| 401 | " restoring previous filehandle\n"); |
| 402 | else |
Al Viro | a90b061 | 2006-10-19 23:29:03 -0700 | [diff] [blame] | 403 | status = nfserr_replay_me; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 404 | } |
| 405 | if (status) |
| 406 | goto out; |
J. Bruce Fields | 9d313b1 | 2013-02-28 12:51:49 -0800 | [diff] [blame] | 407 | if (open->op_xdr_error) { |
| 408 | status = open->op_xdr_error; |
| 409 | goto out; |
| 410 | } |
J. Bruce Fields | fb553c0 | 2006-01-18 17:43:36 -0800 | [diff] [blame] | 411 | |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 412 | status = nfsd4_check_open_attributes(rqstp, cstate, open); |
| 413 | if (status) |
| 414 | goto out; |
| 415 | |
J. Bruce Fields | fb553c0 | 2006-01-18 17:43:36 -0800 | [diff] [blame] | 416 | /* Openowner is now set, so sequence id will get bumped. Now we need |
| 417 | * these checks before we do any creates: */ |
J. Bruce Fields | cbd0d51 | 2006-02-07 12:58:32 -0800 | [diff] [blame] | 418 | status = nfserr_grace; |
Stanislav Kinsbursky | 3320fef19 | 2012-11-14 18:22:07 +0300 | [diff] [blame] | 419 | 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] | 420 | goto out; |
| 421 | status = nfserr_no_grace; |
Stanislav Kinsbursky | 3320fef19 | 2012-11-14 18:22:07 +0300 | [diff] [blame] | 422 | 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] | 423 | goto out; |
J. Bruce Fields | fb553c0 | 2006-01-18 17:43:36 -0800 | [diff] [blame] | 424 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 425 | switch (open->op_claim_type) { |
NeilBrown | 0dd3c19 | 2005-06-23 22:02:56 -0700 | [diff] [blame] | 426 | case NFS4_OPEN_CLAIM_DELEGATE_CUR: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 427 | case NFS4_OPEN_CLAIM_NULL: |
J. Bruce Fields | c0e6bee | 2012-01-27 17:26:06 -0500 | [diff] [blame] | 428 | status = do_open_lookup(rqstp, cstate, open, &resfh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 429 | if (status) |
| 430 | goto out; |
| 431 | break; |
| 432 | case NFS4_OPEN_CLAIM_PREVIOUS: |
Stanislav Kinsbursky | 3320fef19 | 2012-11-14 18:22:07 +0300 | [diff] [blame] | 433 | status = nfs4_check_open_reclaim(&open->op_clientid, |
| 434 | cstate->minorversion, |
| 435 | nn); |
Mi Jinlong | 0cf99b9 | 2011-11-23 10:48:40 +0800 | [diff] [blame] | 436 | if (status) |
| 437 | goto out; |
Jeff Layton | ba5378b | 2014-05-30 09:09:28 -0400 | [diff] [blame] | 438 | open->op_openowner->oo_flags |= NFS4_OO_CONFIRMED; |
J. Bruce Fields | 8b289b2 | 2011-10-19 11:52:12 -0400 | [diff] [blame] | 439 | case NFS4_OPEN_CLAIM_FH: |
| 440 | case NFS4_OPEN_CLAIM_DELEG_CUR_FH: |
J. Bruce Fields | bbc9c36 | 2013-03-22 18:03:49 -0400 | [diff] [blame] | 441 | status = do_open_fhandle(rqstp, cstate, open); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 442 | if (status) |
| 443 | goto out; |
J. Bruce Fields | c0e6bee | 2012-01-27 17:26:06 -0500 | [diff] [blame] | 444 | resfh = &cstate->current_fh; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 445 | break; |
J. Bruce Fields | 8b289b2 | 2011-10-19 11:52:12 -0400 | [diff] [blame] | 446 | case NFS4_OPEN_CLAIM_DELEG_PREV_FH: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 447 | case NFS4_OPEN_CLAIM_DELEGATE_PREV: |
J. Bruce Fields | 2fdada0 | 2007-07-27 16:10:37 -0400 | [diff] [blame] | 448 | dprintk("NFSD: unsupported OPEN claim type %d\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 449 | open->op_claim_type); |
| 450 | status = nfserr_notsupp; |
| 451 | goto out; |
| 452 | default: |
J. Bruce Fields | 2fdada0 | 2007-07-27 16:10:37 -0400 | [diff] [blame] | 453 | dprintk("NFSD: Invalid OPEN claim type %d\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 454 | open->op_claim_type); |
| 455 | status = nfserr_inval; |
| 456 | goto out; |
| 457 | } |
| 458 | /* |
| 459 | * nfsd4_process_open2() does the actual opening of the file. If |
| 460 | * successful, it (1) truncates the file if open->op_truncate was |
| 461 | * set, (2) sets open->op_stateid, (3) sets open->op_delegation. |
| 462 | */ |
J. Bruce Fields | c0e6bee | 2012-01-27 17:26:06 -0500 | [diff] [blame] | 463 | status = nfsd4_process_open2(rqstp, resfh, open); |
J. Bruce Fields | 856121b | 2011-10-13 11:37:11 -0400 | [diff] [blame] | 464 | WARN_ON(status && open->op_created); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 465 | out: |
J. Bruce Fields | c0e6bee | 2012-01-27 17:26:06 -0500 | [diff] [blame] | 466 | if (resfh && resfh != &cstate->current_fh) { |
| 467 | fh_dup2(&cstate->current_fh, resfh); |
| 468 | fh_put(resfh); |
| 469 | kfree(resfh); |
| 470 | } |
J. Bruce Fields | d29b20c | 2011-10-13 15:12:59 -0400 | [diff] [blame] | 471 | nfsd4_cleanup_open_state(open, status); |
J. Bruce Fields | 3d74e6a | 2013-03-22 17:44:19 -0400 | [diff] [blame] | 472 | if (open->op_openowner && !nfsd4_has_session(cstate)) |
J. Bruce Fields | fe0750e | 2011-07-30 23:33:59 -0400 | [diff] [blame] | 473 | cstate->replay_owner = &open->op_openowner->oo_owner; |
J. Bruce Fields | 9411b1d | 2013-04-01 16:37:12 -0400 | [diff] [blame] | 474 | nfsd4_bump_seqid(cstate, status); |
| 475 | if (!cstate->replay_owner) |
J. Bruce Fields | 5ec094c | 2011-08-30 17:02:48 -0400 | [diff] [blame] | 476 | nfs4_unlock_state(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 477 | return status; |
| 478 | } |
| 479 | |
| 480 | /* |
J. Bruce Fields | 9d313b1 | 2013-02-28 12:51:49 -0800 | [diff] [blame] | 481 | * OPEN is the only seqid-mutating operation whose decoding can fail |
| 482 | * with a seqid-mutating error (specifically, decoding of user names in |
| 483 | * the attributes). Therefore we have to do some processing to look up |
| 484 | * the stateowner so that we can bump the seqid. |
| 485 | */ |
| 486 | static __be32 nfsd4_open_omfg(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_op *op) |
| 487 | { |
| 488 | struct nfsd4_open *open = (struct nfsd4_open *)&op->u; |
| 489 | |
| 490 | if (!seqid_mutating_err(ntohl(op->status))) |
| 491 | return op->status; |
| 492 | if (nfsd4_has_session(cstate)) |
| 493 | return op->status; |
| 494 | open->op_xdr_error = op->status; |
| 495 | return nfsd4_open(rqstp, cstate, open); |
| 496 | } |
| 497 | |
| 498 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 499 | * filehandle-manipulating ops. |
| 500 | */ |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 501 | static __be32 |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 502 | nfsd4_getfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 503 | struct svc_fh **getfh) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 504 | { |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 505 | if (!cstate->current_fh.fh_dentry) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 506 | return nfserr_nofilehandle; |
| 507 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 508 | *getfh = &cstate->current_fh; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 509 | return nfs_ok; |
| 510 | } |
| 511 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 512 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 513 | nfsd4_putfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 514 | struct nfsd4_putfh *putfh) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 515 | { |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 516 | fh_put(&cstate->current_fh); |
| 517 | cstate->current_fh.fh_handle.fh_size = putfh->pf_fhlen; |
| 518 | memcpy(&cstate->current_fh.fh_handle.fh_base, putfh->pf_fhval, |
| 519 | putfh->pf_fhlen); |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 520 | return fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_BYPASS_GSS); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 521 | } |
| 522 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 523 | static __be32 |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 524 | nfsd4_putrootfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 525 | void *arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 526 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 527 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 528 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 529 | fh_put(&cstate->current_fh); |
J. Bruce Fields | df547ef | 2007-07-17 04:04:43 -0700 | [diff] [blame] | 530 | status = exp_pseudoroot(rqstp, &cstate->current_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 531 | return status; |
| 532 | } |
| 533 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 534 | static __be32 |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 535 | nfsd4_restorefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 536 | void *arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 537 | { |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 538 | if (!cstate->save_fh.fh_dentry) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 539 | return nfserr_restorefh; |
| 540 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 541 | fh_dup2(&cstate->current_fh, &cstate->save_fh); |
Tigran Mkrtchyan | 37c593c | 2012-02-13 22:55:32 +0100 | [diff] [blame] | 542 | if (HAS_STATE_ID(cstate, SAVED_STATE_ID_FLAG)) { |
| 543 | memcpy(&cstate->current_stateid, &cstate->save_stateid, sizeof(stateid_t)); |
| 544 | SET_STATE_ID(cstate, CURRENT_STATE_ID_FLAG); |
| 545 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 546 | return nfs_ok; |
| 547 | } |
| 548 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 549 | static __be32 |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 550 | nfsd4_savefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 551 | void *arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 552 | { |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 553 | if (!cstate->current_fh.fh_dentry) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 554 | return nfserr_nofilehandle; |
| 555 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 556 | fh_dup2(&cstate->save_fh, &cstate->current_fh); |
Tigran Mkrtchyan | 37c593c | 2012-02-13 22:55:32 +0100 | [diff] [blame] | 557 | if (HAS_STATE_ID(cstate, CURRENT_STATE_ID_FLAG)) { |
| 558 | memcpy(&cstate->save_stateid, &cstate->current_stateid, sizeof(stateid_t)); |
| 559 | SET_STATE_ID(cstate, SAVED_STATE_ID_FLAG); |
| 560 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 561 | return nfs_ok; |
| 562 | } |
| 563 | |
| 564 | /* |
| 565 | * misc nfsv4 ops |
| 566 | */ |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 567 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 568 | nfsd4_access(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 569 | struct nfsd4_access *access) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 570 | { |
| 571 | if (access->ac_req_access & ~NFS3_ACCESS_FULL) |
| 572 | return nfserr_inval; |
| 573 | |
| 574 | access->ac_resp_access = access->ac_req_access; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 575 | return nfsd_access(rqstp, &cstate->current_fh, &access->ac_resp_access, |
| 576 | &access->ac_supported); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 577 | } |
| 578 | |
Stanislav Kinsbursky | b9c0ef8 | 2012-12-06 14:23:19 +0300 | [diff] [blame] | 579 | static void gen_boot_verifier(nfs4_verifier *verifier, struct net *net) |
Chuck Lever | ab4684d | 2012-03-02 17:13:50 -0500 | [diff] [blame] | 580 | { |
| 581 | __be32 verf[2]; |
Stanislav Kinsbursky | b9c0ef8 | 2012-12-06 14:23:19 +0300 | [diff] [blame] | 582 | struct nfsd_net *nn = net_generic(net, nfsd_net_id); |
Chuck Lever | ab4684d | 2012-03-02 17:13:50 -0500 | [diff] [blame] | 583 | |
Stanislav Kinsbursky | b9c0ef8 | 2012-12-06 14:23:19 +0300 | [diff] [blame] | 584 | verf[0] = (__be32)nn->nfssvc_boot.tv_sec; |
| 585 | verf[1] = (__be32)nn->nfssvc_boot.tv_usec; |
Chuck Lever | ab4684d | 2012-03-02 17:13:50 -0500 | [diff] [blame] | 586 | memcpy(verifier->data, verf, sizeof(verifier->data)); |
| 587 | } |
| 588 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 589 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 590 | nfsd4_commit(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 591 | struct nfsd4_commit *commit) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 592 | { |
Stanislav Kinsbursky | b9c0ef8 | 2012-12-06 14:23:19 +0300 | [diff] [blame] | 593 | gen_boot_verifier(&commit->co_verf, SVC_NET(rqstp)); |
J. Bruce Fields | 75c096f | 2011-08-15 18:39:32 -0400 | [diff] [blame] | 594 | return nfsd_commit(rqstp, &cstate->current_fh, commit->co_offset, |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 595 | commit->co_count); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 596 | } |
| 597 | |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 598 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 599 | nfsd4_create(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 600 | struct nfsd4_create *create) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 601 | { |
| 602 | struct svc_fh resfh; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 603 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 604 | dev_t rdev; |
| 605 | |
| 606 | fh_init(&resfh, NFS4_FHSIZE); |
| 607 | |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 608 | status = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, |
| 609 | NFSD_MAY_CREATE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 610 | if (status) |
| 611 | return status; |
| 612 | |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 613 | status = check_attr_support(rqstp, cstate, create->cr_bmval, |
| 614 | nfsd_attrmask); |
| 615 | if (status) |
| 616 | return status; |
| 617 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 618 | switch (create->cr_type) { |
| 619 | case NF4LNK: |
| 620 | /* ugh! we have to null-terminate the linktext, or |
| 621 | * vfs_symlink() will choke. it is always safe to |
| 622 | * null-terminate by brute force, since at worst we |
| 623 | * will overwrite the first byte of the create namelen |
| 624 | * in the XDR buffer, which has already been extracted |
| 625 | * during XDR decode. |
| 626 | */ |
| 627 | create->cr_linkname[create->cr_linklen] = 0; |
| 628 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 629 | status = nfsd_symlink(rqstp, &cstate->current_fh, |
| 630 | create->cr_name, create->cr_namelen, |
| 631 | create->cr_linkname, create->cr_linklen, |
| 632 | &resfh, &create->cr_iattr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 633 | break; |
| 634 | |
| 635 | case NF4BLK: |
| 636 | rdev = MKDEV(create->cr_specdata1, create->cr_specdata2); |
| 637 | if (MAJOR(rdev) != create->cr_specdata1 || |
| 638 | MINOR(rdev) != create->cr_specdata2) |
| 639 | return nfserr_inval; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 640 | status = nfsd_create(rqstp, &cstate->current_fh, |
| 641 | create->cr_name, create->cr_namelen, |
| 642 | &create->cr_iattr, S_IFBLK, rdev, &resfh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 643 | break; |
| 644 | |
| 645 | case NF4CHR: |
| 646 | rdev = MKDEV(create->cr_specdata1, create->cr_specdata2); |
| 647 | if (MAJOR(rdev) != create->cr_specdata1 || |
| 648 | MINOR(rdev) != create->cr_specdata2) |
| 649 | return nfserr_inval; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 650 | status = nfsd_create(rqstp, &cstate->current_fh, |
| 651 | create->cr_name, create->cr_namelen, |
| 652 | &create->cr_iattr,S_IFCHR, rdev, &resfh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 653 | break; |
| 654 | |
| 655 | case NF4SOCK: |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 656 | status = nfsd_create(rqstp, &cstate->current_fh, |
| 657 | create->cr_name, create->cr_namelen, |
| 658 | &create->cr_iattr, S_IFSOCK, 0, &resfh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 659 | break; |
| 660 | |
| 661 | case NF4FIFO: |
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_IFIFO, 0, &resfh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 665 | break; |
| 666 | |
| 667 | case NF4DIR: |
| 668 | create->cr_iattr.ia_valid &= ~ATTR_SIZE; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 669 | status = nfsd_create(rqstp, &cstate->current_fh, |
| 670 | create->cr_name, create->cr_namelen, |
| 671 | &create->cr_iattr, S_IFDIR, 0, &resfh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 672 | break; |
| 673 | |
| 674 | default: |
| 675 | status = nfserr_badtype; |
| 676 | } |
| 677 | |
Yu Zhiguo | 9208faf | 2009-07-06 17:24:16 +0800 | [diff] [blame] | 678 | if (status) |
| 679 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 680 | |
David Quigley | 18032ca | 2013-05-02 13:19:10 -0400 | [diff] [blame] | 681 | if (create->cr_label.len) |
| 682 | nfsd4_security_inode_setsecctx(&resfh, &create->cr_label, create->cr_bmval); |
| 683 | |
Yu Zhiguo | 9208faf | 2009-07-06 17:24:16 +0800 | [diff] [blame] | 684 | if (create->cr_acl != NULL) |
| 685 | do_set_nfs4_acl(rqstp, &resfh, create->cr_acl, |
| 686 | create->cr_bmval); |
| 687 | |
| 688 | fh_unlock(&cstate->current_fh); |
| 689 | set_change_info(&create->cr_cinfo, &cstate->current_fh); |
| 690 | fh_dup2(&cstate->current_fh, &resfh); |
| 691 | out: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 692 | fh_put(&resfh); |
| 693 | return status; |
| 694 | } |
| 695 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 696 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 697 | nfsd4_getattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 698 | struct nfsd4_getattr *getattr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 699 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 700 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 701 | |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 702 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 703 | if (status) |
| 704 | return status; |
| 705 | |
| 706 | if (getattr->ga_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1) |
| 707 | return nfserr_inval; |
| 708 | |
Andy Adamson | 7e70570 | 2009-04-03 08:29:11 +0300 | [diff] [blame] | 709 | getattr->ga_bmval[0] &= nfsd_suppattrs0(cstate->minorversion); |
| 710 | getattr->ga_bmval[1] &= nfsd_suppattrs1(cstate->minorversion); |
| 711 | getattr->ga_bmval[2] &= nfsd_suppattrs2(cstate->minorversion); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 712 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 713 | getattr->ga_fhp = &cstate->current_fh; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 714 | return nfs_ok; |
| 715 | } |
| 716 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 717 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 718 | nfsd4_link(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 719 | struct nfsd4_link *link) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 720 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 721 | __be32 status = nfserr_nofilehandle; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 722 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 723 | if (!cstate->save_fh.fh_dentry) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 724 | return status; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 725 | status = nfsd_link(rqstp, &cstate->current_fh, |
| 726 | link->li_name, link->li_namelen, &cstate->save_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 727 | if (!status) |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 728 | set_change_info(&link->li_cinfo, &cstate->current_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 729 | return status; |
| 730 | } |
| 731 | |
J. Bruce Fields | 0ff7ab4 | 2010-12-16 10:06:27 -0500 | [diff] [blame] | 732 | 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] | 733 | { |
| 734 | struct svc_fh tmp_fh; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 735 | __be32 ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 736 | |
| 737 | fh_init(&tmp_fh, NFS4_FHSIZE); |
J. Bruce Fields | df547ef | 2007-07-17 04:04:43 -0700 | [diff] [blame] | 738 | ret = exp_pseudoroot(rqstp, &tmp_fh); |
| 739 | if (ret) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 740 | return ret; |
J. Bruce Fields | 0ff7ab4 | 2010-12-16 10:06:27 -0500 | [diff] [blame] | 741 | if (tmp_fh.fh_dentry == fh->fh_dentry) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 742 | fh_put(&tmp_fh); |
| 743 | return nfserr_noent; |
| 744 | } |
| 745 | fh_put(&tmp_fh); |
J. Bruce Fields | 0ff7ab4 | 2010-12-16 10:06:27 -0500 | [diff] [blame] | 746 | return nfsd_lookup(rqstp, fh, "..", 2, fh); |
| 747 | } |
| 748 | |
| 749 | static __be32 |
| 750 | nfsd4_lookupp(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 751 | void *arg) |
| 752 | { |
| 753 | return nfsd4_do_lookupp(rqstp, &cstate->current_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 754 | } |
| 755 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 756 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 757 | nfsd4_lookup(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 758 | struct nfsd4_lookup *lookup) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 759 | { |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 760 | return nfsd_lookup(rqstp, &cstate->current_fh, |
| 761 | lookup->lo_name, lookup->lo_len, |
| 762 | &cstate->current_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 763 | } |
| 764 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 765 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 766 | nfsd4_read(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 767 | struct nfsd4_read *read) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 768 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 769 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 770 | |
| 771 | /* no need to check permission - this will be done in nfsd_read() */ |
| 772 | |
NeilBrown | 7e06b7f | 2005-06-23 22:03:13 -0700 | [diff] [blame] | 773 | read->rd_filp = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 774 | if (read->rd_offset >= OFFSET_MAX) |
| 775 | return nfserr_inval; |
| 776 | |
J. Bruce Fields | 9b3234b | 2012-12-04 18:03:46 -0500 | [diff] [blame] | 777 | /* |
| 778 | * If we do a zero copy read, then a client will see read data |
| 779 | * that reflects the state of the file *after* performing the |
| 780 | * following compound. |
| 781 | * |
| 782 | * To ensure proper ordering, we therefore turn off zero copy if |
| 783 | * the client wants us to do more in this compound: |
| 784 | */ |
| 785 | if (!nfsd4_last_compound_op(rqstp)) |
| 786 | rqstp->rq_splice_ok = false; |
| 787 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 788 | /* check stateid */ |
Stanislav Kinsbursky | 5ccb006 | 2012-07-25 16:57:22 +0400 | [diff] [blame] | 789 | if ((status = nfs4_preprocess_stateid_op(SVC_NET(rqstp), |
| 790 | cstate, &read->rd_stateid, |
Benny Halevy | dd453df | 2009-04-03 08:28:41 +0300 | [diff] [blame] | 791 | RD_STATE, &read->rd_filp))) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 792 | dprintk("NFSD: nfsd4_read: couldn't process stateid!\n"); |
| 793 | goto out; |
| 794 | } |
| 795 | status = nfs_ok; |
| 796 | out: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 797 | read->rd_rqstp = rqstp; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 798 | read->rd_fhp = &cstate->current_fh; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 799 | return status; |
| 800 | } |
| 801 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 802 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 803 | nfsd4_readdir(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 804 | struct nfsd4_readdir *readdir) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 805 | { |
| 806 | u64 cookie = readdir->rd_cookie; |
| 807 | static const nfs4_verifier zeroverf; |
| 808 | |
| 809 | /* no need to check permission - this will be done in nfsd_readdir() */ |
| 810 | |
| 811 | if (readdir->rd_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1) |
| 812 | return nfserr_inval; |
| 813 | |
Andy Adamson | 7e70570 | 2009-04-03 08:29:11 +0300 | [diff] [blame] | 814 | readdir->rd_bmval[0] &= nfsd_suppattrs0(cstate->minorversion); |
| 815 | readdir->rd_bmval[1] &= nfsd_suppattrs1(cstate->minorversion); |
| 816 | readdir->rd_bmval[2] &= nfsd_suppattrs2(cstate->minorversion); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 817 | |
Bernd Schubert | 832023b | 2011-08-08 17:38:08 +0200 | [diff] [blame] | 818 | if ((cookie == 1) || (cookie == 2) || |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 819 | (cookie == 0 && memcmp(readdir->rd_verf.data, zeroverf.data, NFS4_VERIFIER_SIZE))) |
| 820 | return nfserr_bad_cookie; |
| 821 | |
| 822 | readdir->rd_rqstp = rqstp; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 823 | readdir->rd_fhp = &cstate->current_fh; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 824 | return nfs_ok; |
| 825 | } |
| 826 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 827 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 828 | nfsd4_readlink(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 829 | struct nfsd4_readlink *readlink) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 830 | { |
| 831 | readlink->rl_rqstp = rqstp; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 832 | readlink->rl_fhp = &cstate->current_fh; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 833 | return nfs_ok; |
| 834 | } |
| 835 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 836 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 837 | nfsd4_remove(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 838 | struct nfsd4_remove *remove) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 839 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 840 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 841 | |
Stanislav Kinsbursky | 5ccb006 | 2012-07-25 16:57:22 +0400 | [diff] [blame] | 842 | if (locks_in_grace(SVC_NET(rqstp))) |
NeilBrown | c815afc | 2005-06-23 22:03:00 -0700 | [diff] [blame] | 843 | return nfserr_grace; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 844 | status = nfsd_unlink(rqstp, &cstate->current_fh, 0, |
| 845 | remove->rm_name, remove->rm_namelen); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 846 | if (!status) { |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 847 | fh_unlock(&cstate->current_fh); |
| 848 | set_change_info(&remove->rm_cinfo, &cstate->current_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 849 | } |
| 850 | return status; |
| 851 | } |
| 852 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 853 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 854 | nfsd4_rename(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 855 | struct nfsd4_rename *rename) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 856 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 857 | __be32 status = nfserr_nofilehandle; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 858 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 859 | if (!cstate->save_fh.fh_dentry) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 860 | return status; |
Stanislav Kinsbursky | 5ccb006 | 2012-07-25 16:57:22 +0400 | [diff] [blame] | 861 | if (locks_in_grace(SVC_NET(rqstp)) && |
| 862 | !(cstate->save_fh.fh_export->ex_flags & NFSEXP_NOSUBTREECHECK)) |
NeilBrown | c815afc | 2005-06-23 22:03:00 -0700 | [diff] [blame] | 863 | return nfserr_grace; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 864 | status = nfsd_rename(rqstp, &cstate->save_fh, rename->rn_sname, |
| 865 | rename->rn_snamelen, &cstate->current_fh, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 866 | rename->rn_tname, rename->rn_tnamelen); |
J. Bruce Fields | 2a6cf94 | 2013-04-30 15:28:51 -0400 | [diff] [blame] | 867 | if (status) |
| 868 | return status; |
| 869 | set_change_info(&rename->rn_sinfo, &cstate->current_fh); |
| 870 | set_change_info(&rename->rn_tinfo, &cstate->save_fh); |
| 871 | return nfs_ok; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 872 | } |
| 873 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 874 | static __be32 |
Andy Adamson | dcb488a3 | 2007-07-17 04:04:51 -0700 | [diff] [blame] | 875 | nfsd4_secinfo(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 876 | struct nfsd4_secinfo *secinfo) |
| 877 | { |
| 878 | struct svc_fh resfh; |
| 879 | struct svc_export *exp; |
| 880 | struct dentry *dentry; |
| 881 | __be32 err; |
| 882 | |
| 883 | fh_init(&resfh, NFS4_FHSIZE); |
J. Bruce Fields | 29a78a3 | 2011-04-09 11:28:53 -0400 | [diff] [blame] | 884 | err = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, NFSD_MAY_EXEC); |
| 885 | if (err) |
| 886 | return err; |
Andy Adamson | dcb488a3 | 2007-07-17 04:04:51 -0700 | [diff] [blame] | 887 | err = nfsd_lookup_dentry(rqstp, &cstate->current_fh, |
| 888 | secinfo->si_name, secinfo->si_namelen, |
| 889 | &exp, &dentry); |
| 890 | if (err) |
| 891 | return err; |
| 892 | if (dentry->d_inode == NULL) { |
| 893 | exp_put(exp); |
| 894 | err = nfserr_noent; |
| 895 | } else |
| 896 | secinfo->si_exp = exp; |
| 897 | dput(dentry); |
J. Bruce Fields | 56560b9 | 2010-12-16 09:57:15 -0500 | [diff] [blame] | 898 | if (cstate->minorversion) |
| 899 | /* See rfc 5661 section 2.6.3.1.1.8 */ |
| 900 | fh_put(&cstate->current_fh); |
Andy Adamson | dcb488a3 | 2007-07-17 04:04:51 -0700 | [diff] [blame] | 901 | return err; |
| 902 | } |
| 903 | |
| 904 | static __be32 |
J. Bruce Fields | 04f4ad1 | 2010-12-16 09:51:13 -0500 | [diff] [blame] | 905 | nfsd4_secinfo_no_name(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 906 | struct nfsd4_secinfo_no_name *sin) |
| 907 | { |
| 908 | __be32 err; |
| 909 | |
| 910 | switch (sin->sin_style) { |
| 911 | case NFS4_SECINFO_STYLE4_CURRENT_FH: |
| 912 | break; |
| 913 | case NFS4_SECINFO_STYLE4_PARENT: |
| 914 | err = nfsd4_do_lookupp(rqstp, &cstate->current_fh); |
| 915 | if (err) |
| 916 | return err; |
| 917 | break; |
| 918 | default: |
| 919 | return nfserr_inval; |
| 920 | } |
| 921 | exp_get(cstate->current_fh.fh_export); |
| 922 | sin->sin_exp = cstate->current_fh.fh_export; |
| 923 | fh_put(&cstate->current_fh); |
| 924 | return nfs_ok; |
| 925 | } |
| 926 | |
| 927 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 928 | nfsd4_setattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 929 | struct nfsd4_setattr *setattr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 930 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 931 | __be32 status = nfs_ok; |
Al Viro | 96f6f98 | 2012-04-12 23:47:00 -0400 | [diff] [blame] | 932 | int err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 933 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 934 | if (setattr->sa_iattr.ia_valid & ATTR_SIZE) { |
Stanislav Kinsbursky | 5ccb006 | 2012-07-25 16:57:22 +0400 | [diff] [blame] | 935 | status = nfs4_preprocess_stateid_op(SVC_NET(rqstp), cstate, |
J. Bruce Fields | 6150ef0 | 2009-02-21 13:36:16 -0800 | [diff] [blame] | 936 | &setattr->sa_stateid, WR_STATE, NULL); |
J. Bruce Fields | 375c554 | 2006-01-18 17:43:33 -0800 | [diff] [blame] | 937 | if (status) { |
Greg Banks | 3e3b480 | 2006-10-02 02:17:41 -0700 | [diff] [blame] | 938 | dprintk("NFSD: nfsd4_setattr: couldn't process stateid!\n"); |
J. Bruce Fields | 375c554 | 2006-01-18 17:43:33 -0800 | [diff] [blame] | 939 | return status; |
| 940 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 941 | } |
Al Viro | 96f6f98 | 2012-04-12 23:47:00 -0400 | [diff] [blame] | 942 | err = fh_want_write(&cstate->current_fh); |
| 943 | if (err) |
| 944 | return nfserrno(err); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 945 | status = nfs_ok; |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 946 | |
| 947 | status = check_attr_support(rqstp, cstate, setattr->sa_bmval, |
| 948 | nfsd_attrmask); |
| 949 | if (status) |
| 950 | goto out; |
| 951 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 952 | if (setattr->sa_acl != NULL) |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 953 | status = nfsd4_set_nfs4_acl(rqstp, &cstate->current_fh, |
| 954 | setattr->sa_acl); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 955 | if (status) |
Dave Hansen | 18f335a | 2008-02-15 14:37:38 -0800 | [diff] [blame] | 956 | goto out; |
David Quigley | 18032ca | 2013-05-02 13:19:10 -0400 | [diff] [blame] | 957 | if (setattr->sa_label.len) |
| 958 | status = nfsd4_set_nfs4_label(rqstp, &cstate->current_fh, |
| 959 | &setattr->sa_label); |
| 960 | if (status) |
| 961 | goto out; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 962 | status = nfsd_setattr(rqstp, &cstate->current_fh, &setattr->sa_iattr, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 963 | 0, (time_t)0); |
Dave Hansen | 18f335a | 2008-02-15 14:37:38 -0800 | [diff] [blame] | 964 | out: |
Al Viro | bad0dcf | 2011-11-23 12:03:18 -0500 | [diff] [blame] | 965 | fh_drop_write(&cstate->current_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 966 | return status; |
| 967 | } |
| 968 | |
J. Bruce Fields | ffe1137 | 2012-11-15 14:52:19 -0500 | [diff] [blame] | 969 | static int fill_in_write_vector(struct kvec *vec, struct nfsd4_write *write) |
| 970 | { |
| 971 | int i = 1; |
| 972 | int buflen = write->wr_buflen; |
| 973 | |
| 974 | vec[0].iov_base = write->wr_head.iov_base; |
| 975 | vec[0].iov_len = min_t(int, buflen, write->wr_head.iov_len); |
| 976 | buflen -= vec[0].iov_len; |
| 977 | |
| 978 | while (buflen) { |
| 979 | vec[i].iov_base = page_address(write->wr_pagelist[i - 1]); |
| 980 | vec[i].iov_len = min_t(int, PAGE_SIZE, buflen); |
| 981 | buflen -= vec[i].iov_len; |
| 982 | i++; |
| 983 | } |
| 984 | return i; |
| 985 | } |
| 986 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 987 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 988 | nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 989 | struct nfsd4_write *write) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 990 | { |
| 991 | stateid_t *stateid = &write->wr_stateid; |
| 992 | struct file *filp = NULL; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 993 | __be32 status = nfs_ok; |
David Shaw | 31dec25 | 2009-03-05 20:16:14 -0500 | [diff] [blame] | 994 | unsigned long cnt; |
J. Bruce Fields | ffe1137 | 2012-11-15 14:52:19 -0500 | [diff] [blame] | 995 | int nvecs; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 996 | |
| 997 | /* no need to check permission - this will be done in nfsd_write() */ |
| 998 | |
| 999 | if (write->wr_offset >= OFFSET_MAX) |
| 1000 | return nfserr_inval; |
| 1001 | |
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) { |
| 1005 | dprintk("NFSD: nfsd4_write: couldn't process stateid!\n"); |
| 1006 | return status; |
| 1007 | } |
| 1008 | |
David Shaw | 31dec25 | 2009-03-05 20:16:14 -0500 | [diff] [blame] | 1009 | cnt = write->wr_buflen; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1010 | write->wr_how_written = write->wr_stable_how; |
Stanislav Kinsbursky | b9c0ef8 | 2012-12-06 14:23:19 +0300 | [diff] [blame] | 1011 | gen_boot_verifier(&write->wr_verifier, SVC_NET(rqstp)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1012 | |
J. Bruce Fields | ffe1137 | 2012-11-15 14:52:19 -0500 | [diff] [blame] | 1013 | nvecs = fill_in_write_vector(rqstp->rq_vec, write); |
| 1014 | WARN_ON_ONCE(nvecs > ARRAY_SIZE(rqstp->rq_vec)); |
| 1015 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 1016 | status = nfsd_write(rqstp, &cstate->current_fh, filp, |
J. Bruce Fields | ffe1137 | 2012-11-15 14:52:19 -0500 | [diff] [blame] | 1017 | write->wr_offset, rqstp->rq_vec, nvecs, |
David Shaw | 31dec25 | 2009-03-05 20:16:14 -0500 | [diff] [blame] | 1018 | &cnt, &write->wr_how_written); |
NeilBrown | 7e06b7f | 2005-06-23 22:03:13 -0700 | [diff] [blame] | 1019 | if (filp) |
| 1020 | fput(filp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1021 | |
David Shaw | 31dec25 | 2009-03-05 20:16:14 -0500 | [diff] [blame] | 1022 | write->wr_bytes_written = cnt; |
| 1023 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1024 | return status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1025 | } |
| 1026 | |
| 1027 | /* This routine never returns NFS_OK! If there are no other errors, it |
| 1028 | * will return NFSERR_SAME or NFSERR_NOT_SAME depending on whether the |
| 1029 | * attributes matched. VERIFY is implemented by mapping NFSERR_SAME |
| 1030 | * to NFS_OK after the call; NVERIFY by mapping NFSERR_NOT_SAME to NFS_OK. |
| 1031 | */ |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 1032 | static __be32 |
J.Bruce Fields | c954e2a | 2006-12-13 00:35:31 -0800 | [diff] [blame] | 1033 | _nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 1034 | struct nfsd4_verify *verify) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1035 | { |
Al Viro | 2ebbc01 | 2006-10-19 23:28:58 -0700 | [diff] [blame] | 1036 | __be32 *buf, *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1037 | int count; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 1038 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1039 | |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 1040 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1041 | if (status) |
| 1042 | return status; |
| 1043 | |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 1044 | status = check_attr_support(rqstp, cstate, verify->ve_bmval, NULL); |
| 1045 | if (status) |
| 1046 | return status; |
| 1047 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1048 | if ((verify->ve_bmval[0] & FATTR4_WORD0_RDATTR_ERROR) |
| 1049 | || (verify->ve_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1)) |
| 1050 | return nfserr_inval; |
| 1051 | if (verify->ve_attrlen & 3) |
| 1052 | return nfserr_inval; |
| 1053 | |
| 1054 | /* count in words: |
| 1055 | * bitmap_len(1) + bitmap(2) + attr_len(1) = 4 |
| 1056 | */ |
| 1057 | count = 4 + (verify->ve_attrlen >> 2); |
| 1058 | buf = kmalloc(count << 2, GFP_KERNEL); |
| 1059 | if (!buf) |
J. Bruce Fields | 3e77246 | 2011-08-10 19:07:33 -0400 | [diff] [blame] | 1060 | return nfserr_jukebox; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1061 | |
J. Bruce Fields | 84822d0 | 2012-12-14 17:57:50 -0500 | [diff] [blame] | 1062 | p = buf; |
J. Bruce Fields | d518465 | 2013-08-26 16:04:46 -0400 | [diff] [blame] | 1063 | status = nfsd4_encode_fattr_to_buf(&p, count, &cstate->current_fh, |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 1064 | cstate->current_fh.fh_export, |
J. Bruce Fields | d518465 | 2013-08-26 16:04:46 -0400 | [diff] [blame] | 1065 | cstate->current_fh.fh_dentry, |
| 1066 | verify->ve_bmval, |
Frank Filz | 406a7ea | 2007-11-27 11:34:05 -0800 | [diff] [blame] | 1067 | rqstp, 0); |
J. Bruce Fields | 41ae6e7 | 2013-08-21 15:32:50 -0400 | [diff] [blame] | 1068 | /* |
| 1069 | * If nfsd4_encode_fattr() ran out of space, assume that's because |
| 1070 | * the attributes are longer (hence different) than those given: |
| 1071 | */ |
J. Bruce Fields | 84822d0 | 2012-12-14 17:57:50 -0500 | [diff] [blame] | 1072 | if (status == nfserr_resource) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1073 | status = nfserr_not_same; |
| 1074 | if (status) |
| 1075 | goto out_kfree; |
| 1076 | |
Benny Halevy | 95ec28c | 2009-04-03 08:29:08 +0300 | [diff] [blame] | 1077 | /* skip bitmap */ |
| 1078 | p = buf + 1 + ntohl(buf[0]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1079 | status = nfserr_not_same; |
| 1080 | if (ntohl(*p++) != verify->ve_attrlen) |
| 1081 | goto out_kfree; |
| 1082 | if (!memcmp(p, verify->ve_attrval, verify->ve_attrlen)) |
| 1083 | status = nfserr_same; |
| 1084 | |
| 1085 | out_kfree: |
| 1086 | kfree(buf); |
| 1087 | return status; |
| 1088 | } |
| 1089 | |
J.Bruce Fields | c954e2a | 2006-12-13 00:35:31 -0800 | [diff] [blame] | 1090 | static __be32 |
| 1091 | nfsd4_nverify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 1092 | struct nfsd4_verify *verify) |
| 1093 | { |
| 1094 | __be32 status; |
| 1095 | |
| 1096 | status = _nfsd4_verify(rqstp, cstate, verify); |
| 1097 | return status == nfserr_not_same ? nfs_ok : status; |
| 1098 | } |
| 1099 | |
| 1100 | static __be32 |
| 1101 | nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 1102 | struct nfsd4_verify *verify) |
| 1103 | { |
| 1104 | __be32 status; |
| 1105 | |
| 1106 | status = _nfsd4_verify(rqstp, cstate, verify); |
| 1107 | return status == nfserr_same ? nfs_ok : status; |
| 1108 | } |
| 1109 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1110 | /* |
| 1111 | * NULL call. |
| 1112 | */ |
Al Viro | 7111c66 | 2006-10-19 23:28:45 -0700 | [diff] [blame] | 1113 | static __be32 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1114 | nfsd4_proc_null(struct svc_rqst *rqstp, void *argp, void *resp) |
| 1115 | { |
| 1116 | return nfs_ok; |
| 1117 | } |
| 1118 | |
Shankar Anand | e2b2095 | 2006-07-10 04:45:44 -0700 | [diff] [blame] | 1119 | static inline void nfsd4_increment_op_stats(u32 opnum) |
| 1120 | { |
| 1121 | if (opnum >= FIRST_NFS4_OP && opnum <= LAST_NFS4_OP) |
| 1122 | nfsdstats.nfs4_opcount[opnum]++; |
| 1123 | } |
| 1124 | |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1125 | typedef __be32(*nfsd4op_func)(struct svc_rqst *, struct nfsd4_compound_state *, |
| 1126 | void *); |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1127 | typedef u32(*nfsd4op_rsize)(struct svc_rqst *, struct nfsd4_op *op); |
Tigran Mkrtchyan | 8b70484 | 2012-02-13 22:55:24 +0100 | [diff] [blame] | 1128 | typedef void(*stateid_setter)(struct nfsd4_compound_state *, void *); |
| 1129 | typedef void(*stateid_getter)(struct nfsd4_compound_state *, void *); |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1130 | |
Andy Adamson | f9bb94c4 | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1131 | enum nfsd4_op_flags { |
| 1132 | ALLOWED_WITHOUT_FH = 1 << 0, /* No current filehandle required */ |
Mi Jinlong | 5ece3ca | 2011-02-18 09:08:31 +0800 | [diff] [blame] | 1133 | ALLOWED_ON_ABSENT_FS = 1 << 1, /* ops processed on absent fs */ |
| 1134 | ALLOWED_AS_FIRST_OP = 1 << 2, /* ops reqired first in compound */ |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1135 | /* For rfc 5661 section 2.6.3.1.1: */ |
| 1136 | OP_HANDLES_WRONGSEC = 1 << 3, |
| 1137 | OP_IS_PUTFH_LIKE = 1 << 4, |
J. Bruce Fields | 1091006 | 2011-01-24 12:11:02 -0500 | [diff] [blame] | 1138 | /* |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 1139 | * These are the ops whose result size we estimate before |
| 1140 | * encoding, to avoid performing an op then not being able to |
| 1141 | * respond or cache a response. This includes writes and setattrs |
| 1142 | * as well as the operations usually called "nonidempotent": |
| 1143 | */ |
| 1144 | OP_MODIFIES_SOMETHING = 1 << 5, |
| 1145 | /* |
| 1146 | * Cache compounds containing these ops in the xid-based drc: |
J. Bruce Fields | 1091006 | 2011-01-24 12:11:02 -0500 | [diff] [blame] | 1147 | * We use the DRC for compounds containing non-idempotent |
| 1148 | * operations, *except* those that are 4.1-specific (since |
| 1149 | * sessions provide their own EOS), and except for stateful |
| 1150 | * operations other than setclientid and setclientid_confirm |
| 1151 | * (since sequence numbers provide EOS for open, lock, etc in |
| 1152 | * the v4.0 case). |
| 1153 | */ |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 1154 | OP_CACHEME = 1 << 6, |
Tigran Mkrtchyan | 8b70484 | 2012-02-13 22:55:24 +0100 | [diff] [blame] | 1155 | /* |
| 1156 | * These are ops which clear current state id. |
| 1157 | */ |
| 1158 | OP_CLEAR_STATEID = 1 << 7, |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 1159 | }; |
| 1160 | |
| 1161 | struct nfsd4_operation { |
| 1162 | nfsd4op_func op_func; |
| 1163 | u32 op_flags; |
| 1164 | char *op_name; |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1165 | /* Try to get response size before operation */ |
| 1166 | nfsd4op_rsize op_rsize_bop; |
Bryan Schumaker | 24ff99c | 2012-08-14 15:55:08 -0400 | [diff] [blame] | 1167 | stateid_getter op_get_currentstateid; |
| 1168 | stateid_setter op_set_currentstateid; |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1169 | }; |
| 1170 | |
| 1171 | static struct nfsd4_operation nfsd4_ops[]; |
| 1172 | |
Adrian Bunk | f1c7f79 | 2008-08-08 19:26:42 +0300 | [diff] [blame] | 1173 | static const char *nfsd4_op_name(unsigned opnum); |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1174 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1175 | /* |
J. Bruce Fields | 5771635 | 2010-04-21 12:27:19 -0400 | [diff] [blame] | 1176 | * Enforce NFSv4.1 COMPOUND ordering rules: |
Andy Adamson | f9bb94c4 | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1177 | * |
J. Bruce Fields | 5771635 | 2010-04-21 12:27:19 -0400 | [diff] [blame] | 1178 | * Also note, enforced elsewhere: |
| 1179 | * - SEQUENCE other than as first op results in |
| 1180 | * NFS4ERR_SEQUENCE_POS. (Enforced in nfsd4_sequence().) |
J. Bruce Fields | 1d1bc8f | 2010-10-04 23:12:59 -0400 | [diff] [blame] | 1181 | * - BIND_CONN_TO_SESSION must be the only op in its compound. |
| 1182 | * (Enforced in nfsd4_bind_conn_to_session().) |
J. Bruce Fields | 5771635 | 2010-04-21 12:27:19 -0400 | [diff] [blame] | 1183 | * - DESTROY_SESSION must be the final operation in a compound, if |
| 1184 | * sessionid's in SEQUENCE and DESTROY_SESSION are the same. |
| 1185 | * (Enforced in nfsd4_destroy_session().) |
Andy Adamson | f9bb94c4 | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1186 | */ |
J. Bruce Fields | 5771635 | 2010-04-21 12:27:19 -0400 | [diff] [blame] | 1187 | static __be32 nfs41_check_op_ordering(struct nfsd4_compoundargs *args) |
Andy Adamson | f9bb94c4 | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1188 | { |
J. Bruce Fields | 5771635 | 2010-04-21 12:27:19 -0400 | [diff] [blame] | 1189 | struct nfsd4_op *op = &args->ops[0]; |
| 1190 | |
| 1191 | /* These ordering requirements don't apply to NFSv4.0: */ |
| 1192 | if (args->minorversion == 0) |
| 1193 | return nfs_ok; |
| 1194 | /* This is weird, but OK, not our problem: */ |
| 1195 | if (args->opcnt == 0) |
| 1196 | return nfs_ok; |
| 1197 | if (op->status == nfserr_op_illegal) |
| 1198 | return nfs_ok; |
| 1199 | if (!(nfsd4_ops[op->opnum].op_flags & ALLOWED_AS_FIRST_OP)) |
| 1200 | return nfserr_op_not_in_session; |
| 1201 | if (op->opnum == OP_SEQUENCE) |
| 1202 | return nfs_ok; |
| 1203 | if (args->opcnt != 1) |
| 1204 | return nfserr_not_only_op; |
| 1205 | return nfs_ok; |
Andy Adamson | f9bb94c4 | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1206 | } |
| 1207 | |
J. Bruce Fields | 22b0321 | 2011-04-09 11:23:24 -0400 | [diff] [blame] | 1208 | static inline struct nfsd4_operation *OPDESC(struct nfsd4_op *op) |
| 1209 | { |
| 1210 | return &nfsd4_ops[op->opnum]; |
| 1211 | } |
| 1212 | |
J. Bruce Fields | 1091006 | 2011-01-24 12:11:02 -0500 | [diff] [blame] | 1213 | bool nfsd4_cache_this_op(struct nfsd4_op *op) |
| 1214 | { |
J. Bruce Fields | e372ba6 | 2014-05-19 12:27:11 -0400 | [diff] [blame] | 1215 | if (op->opnum == OP_ILLEGAL) |
| 1216 | return false; |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 1217 | return OPDESC(op)->op_flags & OP_CACHEME; |
J. Bruce Fields | 1091006 | 2011-01-24 12:11:02 -0500 | [diff] [blame] | 1218 | } |
| 1219 | |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1220 | static bool need_wrongsec_check(struct svc_rqst *rqstp) |
| 1221 | { |
| 1222 | struct nfsd4_compoundres *resp = rqstp->rq_resp; |
| 1223 | struct nfsd4_compoundargs *argp = rqstp->rq_argp; |
| 1224 | struct nfsd4_op *this = &argp->ops[resp->opcnt - 1]; |
| 1225 | struct nfsd4_op *next = &argp->ops[resp->opcnt]; |
| 1226 | struct nfsd4_operation *thisd; |
| 1227 | struct nfsd4_operation *nextd; |
| 1228 | |
| 1229 | thisd = OPDESC(this); |
| 1230 | /* |
| 1231 | * Most ops check wronsec on our own; only the putfh-like ops |
| 1232 | * have special rules. |
| 1233 | */ |
| 1234 | if (!(thisd->op_flags & OP_IS_PUTFH_LIKE)) |
| 1235 | return false; |
| 1236 | /* |
| 1237 | * rfc 5661 2.6.3.1.1.6: don't bother erroring out a |
| 1238 | * put-filehandle operation if we're not going to use the |
| 1239 | * result: |
| 1240 | */ |
| 1241 | if (argp->opcnt == resp->opcnt) |
| 1242 | return false; |
| 1243 | |
| 1244 | nextd = OPDESC(next); |
| 1245 | /* |
| 1246 | * Rest of 2.6.3.1.1: certain operations will return WRONGSEC |
| 1247 | * errors themselves as necessary; others should check for them |
| 1248 | * now: |
| 1249 | */ |
| 1250 | return !(nextd->op_flags & OP_HANDLES_WRONGSEC); |
| 1251 | } |
| 1252 | |
J. Bruce Fields | 2d124dfaa | 2014-01-15 16:26:42 -0500 | [diff] [blame] | 1253 | static void svcxdr_init_encode(struct svc_rqst *rqstp, |
| 1254 | struct nfsd4_compoundres *resp) |
| 1255 | { |
| 1256 | struct xdr_stream *xdr = &resp->xdr; |
| 1257 | struct xdr_buf *buf = &rqstp->rq_res; |
| 1258 | struct kvec *head = buf->head; |
| 1259 | |
| 1260 | xdr->buf = buf; |
J. Bruce Fields | ddd1ea5 | 2013-08-27 21:32:25 -0400 | [diff] [blame] | 1261 | xdr->iov = head; |
J. Bruce Fields | 2d124dfaa | 2014-01-15 16:26:42 -0500 | [diff] [blame] | 1262 | xdr->p = head->iov_base + head->iov_len; |
J. Bruce Fields | a5cddc8 | 2014-05-12 18:10:58 -0400 | [diff] [blame] | 1263 | xdr->end = head->iov_base + PAGE_SIZE - rqstp->rq_auth_slack; |
J. Bruce Fields | 6ac9039 | 2014-02-26 17:39:35 -0500 | [diff] [blame] | 1264 | /* Tail and page_len should be zero at this point: */ |
| 1265 | buf->len = buf->head[0].iov_len; |
J. Bruce Fields | 2825a7f | 2013-08-26 16:04:46 -0400 | [diff] [blame] | 1266 | xdr->scratch.iov_len = 0; |
J. Bruce Fields | 05638dc | 2014-06-02 12:05:47 -0400 | [diff] [blame] | 1267 | xdr->page_ptr = buf->pages - 1; |
J. Bruce Fields | 2825a7f | 2013-08-26 16:04:46 -0400 | [diff] [blame] | 1268 | buf->buflen = PAGE_SIZE * (1 + rqstp->rq_page_end - buf->pages) |
J. Bruce Fields | a5cddc8 | 2014-05-12 18:10:58 -0400 | [diff] [blame] | 1269 | - rqstp->rq_auth_slack; |
J. Bruce Fields | 2d124dfaa | 2014-01-15 16:26:42 -0500 | [diff] [blame] | 1270 | } |
| 1271 | |
Andy Adamson | f9bb94c4 | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1272 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1273 | * COMPOUND call. |
| 1274 | */ |
Al Viro | 7111c66 | 2006-10-19 23:28:45 -0700 | [diff] [blame] | 1275 | static __be32 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1276 | nfsd4_proc_compound(struct svc_rqst *rqstp, |
| 1277 | struct nfsd4_compoundargs *args, |
| 1278 | struct nfsd4_compoundres *resp) |
| 1279 | { |
| 1280 | struct nfsd4_op *op; |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1281 | struct nfsd4_operation *opdesc; |
Andy Adamson | e354d57 | 2009-03-28 11:30:52 +0300 | [diff] [blame] | 1282 | struct nfsd4_compound_state *cstate = &resp->cstate; |
Kinglong Mee | 4daeed2 | 2014-03-26 17:10:37 +0800 | [diff] [blame] | 1283 | struct svc_fh *current_fh = &cstate->current_fh; |
| 1284 | struct svc_fh *save_fh = &cstate->save_fh; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 1285 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1286 | |
J. Bruce Fields | 2d124dfaa | 2014-01-15 16:26:42 -0500 | [diff] [blame] | 1287 | svcxdr_init_encode(rqstp, resp); |
J. Bruce Fields | 4aea24b | 2014-01-15 15:17:58 -0500 | [diff] [blame] | 1288 | resp->tagp = resp->xdr.p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1289 | /* reserve space for: taglen, tag, and opcnt */ |
J. Bruce Fields | d3f627c | 2014-02-26 17:00:38 -0500 | [diff] [blame] | 1290 | xdr_reserve_space(&resp->xdr, 8 + args->taglen); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1291 | resp->taglen = args->taglen; |
| 1292 | resp->tag = args->tag; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1293 | resp->rqstp = rqstp; |
Kinglong Mee | 4daeed2 | 2014-03-26 17:10:37 +0800 | [diff] [blame] | 1294 | cstate->minorversion = args->minorversion; |
Kinglong Mee | 4daeed2 | 2014-03-26 17:10:37 +0800 | [diff] [blame] | 1295 | fh_init(current_fh, NFS4_FHSIZE); |
| 1296 | fh_init(save_fh, NFS4_FHSIZE); |
NeilBrown | 8ff30fa | 2010-08-12 17:04:07 +1000 | [diff] [blame] | 1297 | /* |
| 1298 | * Don't use the deferral mechanism for NFSv4; compounds make it |
| 1299 | * too hard to avoid non-idempotency problems. |
| 1300 | */ |
| 1301 | rqstp->rq_usedeferral = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1302 | |
| 1303 | /* |
| 1304 | * According to RFC3010, this takes precedence over all other errors. |
| 1305 | */ |
| 1306 | status = nfserr_minor_vers_mismatch; |
J. Bruce Fields | 35f7a14 | 2013-07-08 19:51:44 -0400 | [diff] [blame] | 1307 | if (nfsd_minorversion(args->minorversion, NFSD_TEST) <= 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1308 | goto out; |
| 1309 | |
J. Bruce Fields | 5771635 | 2010-04-21 12:27:19 -0400 | [diff] [blame] | 1310 | status = nfs41_check_op_ordering(args); |
| 1311 | if (status) { |
Andy Adamson | f9bb94c4 | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1312 | op = &args->ops[0]; |
J. Bruce Fields | 5771635 | 2010-04-21 12:27:19 -0400 | [diff] [blame] | 1313 | op->status = status; |
Andy Adamson | f9bb94c4 | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1314 | goto encode_op; |
| 1315 | } |
| 1316 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1317 | while (!status && resp->opcnt < args->opcnt) { |
| 1318 | op = &args->ops[resp->opcnt++]; |
| 1319 | |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1320 | dprintk("nfsv4 compound op #%d/%d: %d (%s)\n", |
| 1321 | resp->opcnt, args->opcnt, op->opnum, |
| 1322 | nfsd4_op_name(op->opnum)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1323 | /* |
| 1324 | * The XDR decode routines may have pre-set op->status; |
| 1325 | * for example, if there is a miscellaneous XDR error |
| 1326 | * it will be set to nfserr_bad_xdr. |
| 1327 | */ |
J. Bruce Fields | 9d313b1 | 2013-02-28 12:51:49 -0800 | [diff] [blame] | 1328 | if (op->status) { |
| 1329 | if (op->opnum == OP_OPEN) |
| 1330 | op->status = nfsd4_open_omfg(rqstp, cstate, op); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1331 | goto encode_op; |
J. Bruce Fields | 9d313b1 | 2013-02-28 12:51:49 -0800 | [diff] [blame] | 1332 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1333 | |
J. Bruce Fields | 22b0321 | 2011-04-09 11:23:24 -0400 | [diff] [blame] | 1334 | opdesc = OPDESC(op); |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1335 | |
Kinglong Mee | 4daeed2 | 2014-03-26 17:10:37 +0800 | [diff] [blame] | 1336 | if (!current_fh->fh_dentry) { |
J.Bruce Fields | 27d630e | 2006-12-13 00:35:43 -0800 | [diff] [blame] | 1337 | if (!(opdesc->op_flags & ALLOWED_WITHOUT_FH)) { |
J.Bruce Fields | 42ca099 | 2006-10-04 02:16:20 -0700 | [diff] [blame] | 1338 | op->status = nfserr_nofilehandle; |
| 1339 | goto encode_op; |
| 1340 | } |
Kinglong Mee | 4daeed2 | 2014-03-26 17:10:37 +0800 | [diff] [blame] | 1341 | } else if (current_fh->fh_export->ex_fslocs.migrated && |
J.Bruce Fields | eeac294 | 2006-12-13 00:35:39 -0800 | [diff] [blame] | 1342 | !(opdesc->op_flags & ALLOWED_ON_ABSENT_FS)) { |
J.Bruce Fields | 42ca099 | 2006-10-04 02:16:20 -0700 | [diff] [blame] | 1343 | op->status = nfserr_moved; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1344 | goto encode_op; |
| 1345 | } |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1346 | |
Kinglong Mee | 2336745 | 2014-03-29 10:23:47 +0800 | [diff] [blame] | 1347 | fh_clear_wcc(current_fh); |
| 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) { |
J. Bruce Fields | 4c69d58 | 2014-01-28 16:01:04 -0500 | [diff] [blame] | 1351 | /* |
J. Bruce Fields | a8095f7 | 2014-03-11 17:54:34 -0400 | [diff] [blame] | 1352 | * Don't execute this op if we couldn't encode a |
| 1353 | * succesful reply: |
| 1354 | */ |
| 1355 | u32 plen = opdesc->op_rsize_bop(rqstp, op); |
| 1356 | /* |
| 1357 | * Plus if there's another operation, make sure |
J. Bruce Fields | 4c69d58 | 2014-01-28 16:01:04 -0500 | [diff] [blame] | 1358 | * we'll have space to at least encode an error: |
| 1359 | */ |
| 1360 | if (resp->opcnt < args->opcnt) |
| 1361 | plen += COMPOUND_ERR_SLACK_SPACE; |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1362 | op->status = nfsd4_check_resp_size(resp, plen); |
| 1363 | } |
| 1364 | |
| 1365 | if (op->status) |
| 1366 | goto encode_op; |
| 1367 | |
J. Bruce Fields | b600de7 | 2013-02-28 11:55:46 -0800 | [diff] [blame] | 1368 | if (opdesc->op_get_currentstateid) |
| 1369 | opdesc->op_get_currentstateid(cstate, &op->u); |
| 1370 | op->status = opdesc->op_func(rqstp, cstate, &op->u); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1371 | |
Tigran Mkrtchyan | 8b70484 | 2012-02-13 22:55:24 +0100 | [diff] [blame] | 1372 | if (!op->status) { |
| 1373 | if (opdesc->op_set_currentstateid) |
| 1374 | opdesc->op_set_currentstateid(cstate, &op->u); |
| 1375 | |
| 1376 | if (opdesc->op_flags & OP_CLEAR_STATEID) |
Tigran Mkrtchyan | 37c593c | 2012-02-13 22:55:32 +0100 | [diff] [blame] | 1377 | clear_current_stateid(cstate); |
Tigran Mkrtchyan | 8b70484 | 2012-02-13 22:55:24 +0100 | [diff] [blame] | 1378 | |
| 1379 | if (need_wrongsec_check(rqstp)) |
Kinglong Mee | 4daeed2 | 2014-03-26 17:10:37 +0800 | [diff] [blame] | 1380 | op->status = check_nfsd_access(current_fh->fh_export, rqstp); |
Tigran Mkrtchyan | 8b70484 | 2012-02-13 22:55:24 +0100 | [diff] [blame] | 1381 | } |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1382 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1383 | encode_op: |
Andy Adamson | 49557cc | 2009-07-23 19:02:16 -0400 | [diff] [blame] | 1384 | /* Only from SEQUENCE */ |
Kinglong Mee | 4daeed2 | 2014-03-26 17:10:37 +0800 | [diff] [blame] | 1385 | if (cstate->status == nfserr_replay_cache) { |
Andy Adamson | da3846a | 2009-04-03 08:28:22 +0300 | [diff] [blame] | 1386 | dprintk("%s NFS4.1 replay from cache\n", __func__); |
Andy Adamson | abfabf8 | 2009-07-23 19:02:18 -0400 | [diff] [blame] | 1387 | status = op->status; |
Andy Adamson | da3846a | 2009-04-03 08:28:22 +0300 | [diff] [blame] | 1388 | goto out; |
| 1389 | } |
Al Viro | a90b061 | 2006-10-19 23:29:03 -0700 | [diff] [blame] | 1390 | if (op->status == nfserr_replay_me) { |
J.Bruce Fields | a4f1706a9 | 2006-12-13 00:35:28 -0800 | [diff] [blame] | 1391 | op->replay = &cstate->replay_owner->so_replay; |
J. Bruce Fields | d0a381d | 2014-01-30 17:18:38 -0500 | [diff] [blame] | 1392 | nfsd4_encode_replay(&resp->xdr, op); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1393 | status = op->status = op->replay->rp_status; |
| 1394 | } else { |
| 1395 | nfsd4_encode_operation(resp, op); |
| 1396 | status = op->status; |
| 1397 | } |
Benny Halevy | 0407717 | 2008-12-15 19:40:49 +0200 | [diff] [blame] | 1398 | |
| 1399 | dprintk("nfsv4 compound op %p opcnt %d #%d: %d: status %d\n", |
| 1400 | args->ops, args->opcnt, resp->opcnt, op->opnum, |
| 1401 | be32_to_cpu(status)); |
| 1402 | |
J.Bruce Fields | a4f1706a9 | 2006-12-13 00:35:28 -0800 | [diff] [blame] | 1403 | if (cstate->replay_owner) { |
J. Bruce Fields | 5ec094c | 2011-08-30 17:02:48 -0400 | [diff] [blame] | 1404 | nfs4_unlock_state(); |
J.Bruce Fields | a4f1706a9 | 2006-12-13 00:35:28 -0800 | [diff] [blame] | 1405 | cstate->replay_owner = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1406 | } |
NeilBrown | 7e06b7f | 2005-06-23 22:03:13 -0700 | [diff] [blame] | 1407 | /* XXX Ugh, we need to get rid of this kind of special case: */ |
| 1408 | if (op->opnum == OP_READ && op->u.read.rd_filp) |
| 1409 | fput(op->u.read.rd_filp); |
Shankar Anand | e2b2095 | 2006-07-10 04:45:44 -0700 | [diff] [blame] | 1410 | |
| 1411 | nfsd4_increment_op_stats(op->opnum); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1412 | } |
| 1413 | |
Kinglong Mee | 4daeed2 | 2014-03-26 17:10:37 +0800 | [diff] [blame] | 1414 | cstate->status = status; |
| 1415 | fh_put(current_fh); |
| 1416 | fh_put(save_fh); |
| 1417 | BUG_ON(cstate->replay_owner); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1418 | out: |
Andy Adamson | 2f42587 | 2009-04-03 08:27:32 +0300 | [diff] [blame] | 1419 | /* Reset deferral mechanism for RPC deferrals */ |
| 1420 | rqstp->rq_usedeferral = 1; |
J. Bruce Fields | 3b12cd9 | 2008-05-05 17:17:44 -0400 | [diff] [blame] | 1421 | dprintk("nfsv4 compound returned %d\n", ntohl(status)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1422 | return status; |
| 1423 | } |
| 1424 | |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1425 | #define op_encode_hdr_size (2) |
| 1426 | #define op_encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) |
| 1427 | #define op_encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) |
| 1428 | #define op_encode_change_info_maxsz (5) |
| 1429 | #define nfs4_fattr_bitmap_maxsz (4) |
| 1430 | |
J. Bruce Fields | 8c7424c | 2014-03-10 12:19:10 -0400 | [diff] [blame] | 1431 | /* We'll fall back on returning no lockowner if run out of space: */ |
| 1432 | #define op_encode_lockowner_maxsz (0) |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1433 | #define op_encode_lock_denied_maxsz (8 + op_encode_lockowner_maxsz) |
| 1434 | |
| 1435 | #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) |
| 1436 | |
| 1437 | #define op_encode_ace_maxsz (3 + nfs4_owner_maxsz) |
| 1438 | #define op_encode_delegation_maxsz (1 + op_encode_stateid_maxsz + 1 + \ |
| 1439 | op_encode_ace_maxsz) |
| 1440 | |
| 1441 | #define op_encode_channel_attrs_maxsz (6 + 1 + 1) |
| 1442 | |
| 1443 | static inline u32 nfsd4_only_status_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1444 | { |
| 1445 | return (op_encode_hdr_size) * sizeof(__be32); |
| 1446 | } |
| 1447 | |
| 1448 | static inline u32 nfsd4_status_stateid_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1449 | { |
| 1450 | return (op_encode_hdr_size + op_encode_stateid_maxsz)* sizeof(__be32); |
| 1451 | } |
| 1452 | |
| 1453 | static inline u32 nfsd4_commit_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1454 | { |
| 1455 | return (op_encode_hdr_size + op_encode_verifier_maxsz) * sizeof(__be32); |
| 1456 | } |
| 1457 | |
| 1458 | static inline u32 nfsd4_create_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1459 | { |
| 1460 | return (op_encode_hdr_size + op_encode_change_info_maxsz |
| 1461 | + nfs4_fattr_bitmap_maxsz) * sizeof(__be32); |
| 1462 | } |
| 1463 | |
J. Bruce Fields | b86cef6 | 2014-03-23 12:01:48 -0400 | [diff] [blame] | 1464 | /* |
| 1465 | * Note since this is an idempotent operation we won't insist on failing |
| 1466 | * the op prematurely if the estimate is too large. We may turn off splice |
| 1467 | * reads unnecessarily. |
| 1468 | */ |
| 1469 | static inline u32 nfsd4_getattr_rsize(struct svc_rqst *rqstp, |
| 1470 | struct nfsd4_op *op) |
| 1471 | { |
| 1472 | u32 *bmap = op->u.getattr.ga_bmval; |
| 1473 | u32 bmap0 = bmap[0], bmap1 = bmap[1], bmap2 = bmap[2]; |
| 1474 | u32 ret = 0; |
| 1475 | |
| 1476 | if (bmap0 & FATTR4_WORD0_ACL) |
| 1477 | return svc_max_payload(rqstp); |
| 1478 | if (bmap0 & FATTR4_WORD0_FS_LOCATIONS) |
| 1479 | return svc_max_payload(rqstp); |
| 1480 | |
| 1481 | if (bmap1 & FATTR4_WORD1_OWNER) { |
| 1482 | ret += IDMAP_NAMESZ + 4; |
| 1483 | bmap1 &= ~FATTR4_WORD1_OWNER; |
| 1484 | } |
| 1485 | if (bmap1 & FATTR4_WORD1_OWNER_GROUP) { |
| 1486 | ret += IDMAP_NAMESZ + 4; |
| 1487 | bmap1 &= ~FATTR4_WORD1_OWNER_GROUP; |
| 1488 | } |
| 1489 | if (bmap0 & FATTR4_WORD0_FILEHANDLE) { |
| 1490 | ret += NFS4_FHSIZE + 4; |
| 1491 | bmap0 &= ~FATTR4_WORD0_FILEHANDLE; |
| 1492 | } |
| 1493 | if (bmap2 & FATTR4_WORD2_SECURITY_LABEL) { |
| 1494 | ret += NFSD4_MAX_SEC_LABEL_LEN + 12; |
| 1495 | bmap2 &= ~FATTR4_WORD2_SECURITY_LABEL; |
| 1496 | } |
| 1497 | /* |
| 1498 | * Largest of remaining attributes are 16 bytes (e.g., |
| 1499 | * supported_attributes) |
| 1500 | */ |
| 1501 | ret += 16 * (hweight32(bmap0) + hweight32(bmap1) + hweight32(bmap2)); |
| 1502 | /* bitmask, length */ |
| 1503 | ret += 20; |
| 1504 | return ret; |
| 1505 | } |
| 1506 | |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1507 | static inline u32 nfsd4_link_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1508 | { |
| 1509 | return (op_encode_hdr_size + op_encode_change_info_maxsz) |
| 1510 | * sizeof(__be32); |
| 1511 | } |
| 1512 | |
| 1513 | static inline u32 nfsd4_lock_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1514 | { |
| 1515 | return (op_encode_hdr_size + op_encode_lock_denied_maxsz) |
| 1516 | * sizeof(__be32); |
| 1517 | } |
| 1518 | |
| 1519 | static inline u32 nfsd4_open_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1520 | { |
| 1521 | return (op_encode_hdr_size + op_encode_stateid_maxsz |
| 1522 | + op_encode_change_info_maxsz + 1 |
| 1523 | + nfs4_fattr_bitmap_maxsz |
| 1524 | + op_encode_delegation_maxsz) * sizeof(__be32); |
| 1525 | } |
| 1526 | |
| 1527 | static inline u32 nfsd4_read_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1528 | { |
| 1529 | u32 maxcount = 0, rlen = 0; |
| 1530 | |
| 1531 | maxcount = svc_max_payload(rqstp); |
| 1532 | rlen = op->u.read.rd_length; |
| 1533 | |
| 1534 | if (rlen > maxcount) |
| 1535 | rlen = maxcount; |
| 1536 | |
J. Bruce Fields | 622f560 | 2014-05-16 14:38:20 -0400 | [diff] [blame] | 1537 | return (op_encode_hdr_size + 2 + XDR_QUADLEN(rlen)) * sizeof(__be32); |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1538 | } |
| 1539 | |
| 1540 | static inline u32 nfsd4_readdir_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1541 | { |
J. Bruce Fields | 561f0ed | 2014-01-20 16:37:11 -0500 | [diff] [blame] | 1542 | u32 maxcount = svc_max_payload(rqstp); |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1543 | u32 rlen = op->u.readdir.rd_maxcount; |
| 1544 | |
J. Bruce Fields | 561f0ed | 2014-01-20 16:37:11 -0500 | [diff] [blame] | 1545 | if (rlen > maxcount) |
| 1546 | rlen = maxcount; |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1547 | |
J. Bruce Fields | 561f0ed | 2014-01-20 16:37:11 -0500 | [diff] [blame] | 1548 | return (op_encode_hdr_size + op_encode_verifier_maxsz + |
| 1549 | XDR_QUADLEN(rlen)) * sizeof(__be32); |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1550 | } |
| 1551 | |
| 1552 | static inline u32 nfsd4_remove_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1553 | { |
| 1554 | return (op_encode_hdr_size + op_encode_change_info_maxsz) |
| 1555 | * sizeof(__be32); |
| 1556 | } |
| 1557 | |
| 1558 | static inline u32 nfsd4_rename_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1559 | { |
| 1560 | return (op_encode_hdr_size + op_encode_change_info_maxsz |
| 1561 | + op_encode_change_info_maxsz) * sizeof(__be32); |
| 1562 | } |
| 1563 | |
J. Bruce Fields | ccae70a | 2014-03-23 09:34:22 -0700 | [diff] [blame] | 1564 | static inline u32 nfsd4_sequence_rsize(struct svc_rqst *rqstp, |
| 1565 | struct nfsd4_op *op) |
| 1566 | { |
| 1567 | return NFS4_MAX_SESSIONID_LEN + 20; |
| 1568 | } |
| 1569 | |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1570 | static inline u32 nfsd4_setattr_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1571 | { |
| 1572 | return (op_encode_hdr_size + nfs4_fattr_bitmap_maxsz) * sizeof(__be32); |
| 1573 | } |
| 1574 | |
| 1575 | static inline u32 nfsd4_setclientid_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1576 | { |
J. Bruce Fields | 480efae | 2014-03-10 14:17:55 -0400 | [diff] [blame] | 1577 | return (op_encode_hdr_size + 2 + XDR_QUADLEN(NFS4_VERIFIER_SIZE)) * |
| 1578 | sizeof(__be32); |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1579 | } |
| 1580 | |
| 1581 | static inline u32 nfsd4_write_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1582 | { |
J. Bruce Fields | f34e432 | 2014-05-16 21:24:56 -0400 | [diff] [blame] | 1583 | return (op_encode_hdr_size + 2 + op_encode_verifier_maxsz) * sizeof(__be32); |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1584 | } |
| 1585 | |
| 1586 | static inline u32 nfsd4_exchange_id_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1587 | { |
| 1588 | return (op_encode_hdr_size + 2 + 1 + /* eir_clientid, eir_sequenceid */\ |
Kinglong Mee | a8bb84b | 2013-12-10 15:24:36 +0800 | [diff] [blame] | 1589 | 1 + 1 + /* eir_flags, spr_how */\ |
| 1590 | 4 + /* spo_must_enforce & _allow with bitmap */\ |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1591 | 2 + /*eir_server_owner.so_minor_id */\ |
| 1592 | /* eir_server_owner.so_major_id<> */\ |
| 1593 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 +\ |
| 1594 | /* eir_server_scope<> */\ |
| 1595 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 +\ |
| 1596 | 1 + /* eir_server_impl_id array length */\ |
| 1597 | 0 /* ignored eir_server_impl_id contents */) * sizeof(__be32); |
| 1598 | } |
| 1599 | |
| 1600 | static inline u32 nfsd4_bind_conn_to_session_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1601 | { |
| 1602 | return (op_encode_hdr_size + \ |
| 1603 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + /* bctsr_sessid */\ |
| 1604 | 2 /* bctsr_dir, use_conn_in_rdma_mode */) * sizeof(__be32); |
| 1605 | } |
| 1606 | |
| 1607 | static inline u32 nfsd4_create_session_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1608 | { |
| 1609 | return (op_encode_hdr_size + \ |
| 1610 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + /* sessionid */\ |
| 1611 | 2 + /* csr_sequence, csr_flags */\ |
| 1612 | op_encode_channel_attrs_maxsz + \ |
| 1613 | op_encode_channel_attrs_maxsz) * sizeof(__be32); |
| 1614 | } |
| 1615 | |
Benny Halevy | 2076601 | 2009-03-28 11:32:05 +0300 | [diff] [blame] | 1616 | static struct nfsd4_operation nfsd4_ops[] = { |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1617 | [OP_ACCESS] = { |
| 1618 | .op_func = (nfsd4op_func)nfsd4_access, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1619 | .op_name = "OP_ACCESS", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1620 | }, |
| 1621 | [OP_CLOSE] = { |
| 1622 | .op_func = (nfsd4op_func)nfsd4_close, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1623 | .op_flags = OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1624 | .op_name = "OP_CLOSE", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1625 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize, |
Tigran Mkrtchyan | 8b70484 | 2012-02-13 22:55:24 +0100 | [diff] [blame] | 1626 | .op_get_currentstateid = (stateid_getter)nfsd4_get_closestateid, |
| 1627 | .op_set_currentstateid = (stateid_setter)nfsd4_set_closestateid, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1628 | }, |
| 1629 | [OP_COMMIT] = { |
| 1630 | .op_func = (nfsd4op_func)nfsd4_commit, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1631 | .op_flags = OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1632 | .op_name = "OP_COMMIT", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1633 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_commit_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1634 | }, |
| 1635 | [OP_CREATE] = { |
| 1636 | .op_func = (nfsd4op_func)nfsd4_create, |
Tigran Mkrtchyan | d147105 | 2012-02-13 22:55:29 +0100 | [diff] [blame] | 1637 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME | OP_CLEAR_STATEID, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1638 | .op_name = "OP_CREATE", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1639 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_create_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1640 | }, |
| 1641 | [OP_DELEGRETURN] = { |
| 1642 | .op_func = (nfsd4op_func)nfsd4_delegreturn, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1643 | .op_flags = OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1644 | .op_name = "OP_DELEGRETURN", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1645 | .op_rsize_bop = nfsd4_only_status_rsize, |
Tigran Mkrtchyan | 9428fe1 | 2012-02-13 22:55:31 +0100 | [diff] [blame] | 1646 | .op_get_currentstateid = (stateid_getter)nfsd4_get_delegreturnstateid, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1647 | }, |
| 1648 | [OP_GETATTR] = { |
| 1649 | .op_func = (nfsd4op_func)nfsd4_getattr, |
J.Bruce Fields | eeac294 | 2006-12-13 00:35:39 -0800 | [diff] [blame] | 1650 | .op_flags = ALLOWED_ON_ABSENT_FS, |
J. Bruce Fields | b86cef6 | 2014-03-23 12:01:48 -0400 | [diff] [blame] | 1651 | .op_rsize_bop = nfsd4_getattr_rsize, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1652 | .op_name = "OP_GETATTR", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1653 | }, |
| 1654 | [OP_GETFH] = { |
| 1655 | .op_func = (nfsd4op_func)nfsd4_getfh, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1656 | .op_name = "OP_GETFH", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1657 | }, |
| 1658 | [OP_LINK] = { |
| 1659 | .op_func = (nfsd4op_func)nfsd4_link, |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 1660 | .op_flags = ALLOWED_ON_ABSENT_FS | OP_MODIFIES_SOMETHING |
| 1661 | | OP_CACHEME, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1662 | .op_name = "OP_LINK", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1663 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_link_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1664 | }, |
| 1665 | [OP_LOCK] = { |
| 1666 | .op_func = (nfsd4op_func)nfsd4_lock, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1667 | .op_flags = OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1668 | .op_name = "OP_LOCK", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1669 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_lock_rsize, |
Tigran Mkrtchyan | 62cd4a5 | 2012-02-13 22:55:25 +0100 | [diff] [blame] | 1670 | .op_set_currentstateid = (stateid_setter)nfsd4_set_lockstateid, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1671 | }, |
| 1672 | [OP_LOCKT] = { |
| 1673 | .op_func = (nfsd4op_func)nfsd4_lockt, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1674 | .op_name = "OP_LOCKT", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1675 | }, |
| 1676 | [OP_LOCKU] = { |
| 1677 | .op_func = (nfsd4op_func)nfsd4_locku, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1678 | .op_flags = OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1679 | .op_name = "OP_LOCKU", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1680 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize, |
Tigran Mkrtchyan | 62cd4a5 | 2012-02-13 22:55:25 +0100 | [diff] [blame] | 1681 | .op_get_currentstateid = (stateid_getter)nfsd4_get_lockustateid, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1682 | }, |
| 1683 | [OP_LOOKUP] = { |
| 1684 | .op_func = (nfsd4op_func)nfsd4_lookup, |
Tigran Mkrtchyan | d147105 | 2012-02-13 22:55:29 +0100 | [diff] [blame] | 1685 | .op_flags = OP_HANDLES_WRONGSEC | OP_CLEAR_STATEID, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1686 | .op_name = "OP_LOOKUP", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1687 | }, |
| 1688 | [OP_LOOKUPP] = { |
| 1689 | .op_func = (nfsd4op_func)nfsd4_lookupp, |
Tigran Mkrtchyan | d147105 | 2012-02-13 22:55:29 +0100 | [diff] [blame] | 1690 | .op_flags = OP_HANDLES_WRONGSEC | OP_CLEAR_STATEID, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1691 | .op_name = "OP_LOOKUPP", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1692 | }, |
| 1693 | [OP_NVERIFY] = { |
| 1694 | .op_func = (nfsd4op_func)nfsd4_nverify, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1695 | .op_name = "OP_NVERIFY", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1696 | }, |
| 1697 | [OP_OPEN] = { |
| 1698 | .op_func = (nfsd4op_func)nfsd4_open, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1699 | .op_flags = OP_HANDLES_WRONGSEC | OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1700 | .op_name = "OP_OPEN", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1701 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_open_rsize, |
Tigran Mkrtchyan | 8b70484 | 2012-02-13 22:55:24 +0100 | [diff] [blame] | 1702 | .op_set_currentstateid = (stateid_setter)nfsd4_set_openstateid, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1703 | }, |
| 1704 | [OP_OPEN_CONFIRM] = { |
| 1705 | .op_func = (nfsd4op_func)nfsd4_open_confirm, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1706 | .op_flags = OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1707 | .op_name = "OP_OPEN_CONFIRM", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1708 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1709 | }, |
| 1710 | [OP_OPEN_DOWNGRADE] = { |
| 1711 | .op_func = (nfsd4op_func)nfsd4_open_downgrade, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1712 | .op_flags = OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1713 | .op_name = "OP_OPEN_DOWNGRADE", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1714 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize, |
Tigran Mkrtchyan | 9428fe1 | 2012-02-13 22:55:31 +0100 | [diff] [blame] | 1715 | .op_get_currentstateid = (stateid_getter)nfsd4_get_opendowngradestateid, |
| 1716 | .op_set_currentstateid = (stateid_setter)nfsd4_set_opendowngradestateid, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1717 | }, |
| 1718 | [OP_PUTFH] = { |
| 1719 | .op_func = (nfsd4op_func)nfsd4_putfh, |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1720 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
J. Bruce Fields | 5b64869 | 2014-03-07 11:43:58 -0500 | [diff] [blame] | 1721 | | OP_IS_PUTFH_LIKE | OP_CLEAR_STATEID, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1722 | .op_name = "OP_PUTFH", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1723 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1724 | }, |
J.Bruce Fields | eeac294 | 2006-12-13 00:35:39 -0800 | [diff] [blame] | 1725 | [OP_PUTPUBFH] = { |
J. Bruce Fields | a1c8c4d | 2009-03-09 12:17:29 -0400 | [diff] [blame] | 1726 | .op_func = (nfsd4op_func)nfsd4_putrootfh, |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1727 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
J. Bruce Fields | 5b64869 | 2014-03-07 11:43:58 -0500 | [diff] [blame] | 1728 | | OP_IS_PUTFH_LIKE | OP_CLEAR_STATEID, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1729 | .op_name = "OP_PUTPUBFH", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1730 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
J.Bruce Fields | eeac294 | 2006-12-13 00:35:39 -0800 | [diff] [blame] | 1731 | }, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1732 | [OP_PUTROOTFH] = { |
| 1733 | .op_func = (nfsd4op_func)nfsd4_putrootfh, |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1734 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
J. Bruce Fields | 5b64869 | 2014-03-07 11:43:58 -0500 | [diff] [blame] | 1735 | | OP_IS_PUTFH_LIKE | OP_CLEAR_STATEID, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1736 | .op_name = "OP_PUTROOTFH", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1737 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1738 | }, |
| 1739 | [OP_READ] = { |
| 1740 | .op_func = (nfsd4op_func)nfsd4_read, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1741 | .op_name = "OP_READ", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1742 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_read_rsize, |
Tigran Mkrtchyan | 30813e2 | 2012-02-13 22:55:26 +0100 | [diff] [blame] | 1743 | .op_get_currentstateid = (stateid_getter)nfsd4_get_readstateid, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1744 | }, |
| 1745 | [OP_READDIR] = { |
| 1746 | .op_func = (nfsd4op_func)nfsd4_readdir, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1747 | .op_name = "OP_READDIR", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1748 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_readdir_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1749 | }, |
| 1750 | [OP_READLINK] = { |
| 1751 | .op_func = (nfsd4op_func)nfsd4_readlink, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1752 | .op_name = "OP_READLINK", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1753 | }, |
| 1754 | [OP_REMOVE] = { |
| 1755 | .op_func = (nfsd4op_func)nfsd4_remove, |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 1756 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1757 | .op_name = "OP_REMOVE", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1758 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_remove_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1759 | }, |
| 1760 | [OP_RENAME] = { |
| 1761 | .op_func = (nfsd4op_func)nfsd4_rename, |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 1762 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1763 | .op_name = "OP_RENAME", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1764 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_rename_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1765 | }, |
| 1766 | [OP_RENEW] = { |
| 1767 | .op_func = (nfsd4op_func)nfsd4_renew, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1768 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
| 1769 | | OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1770 | .op_name = "OP_RENEW", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1771 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
| 1772 | |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1773 | }, |
| 1774 | [OP_RESTOREFH] = { |
| 1775 | .op_func = (nfsd4op_func)nfsd4_restorefh, |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1776 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1777 | | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1778 | .op_name = "OP_RESTOREFH", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1779 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1780 | }, |
| 1781 | [OP_SAVEFH] = { |
| 1782 | .op_func = (nfsd4op_func)nfsd4_savefh, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1783 | .op_flags = OP_HANDLES_WRONGSEC | OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1784 | .op_name = "OP_SAVEFH", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1785 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1786 | }, |
Andy Adamson | dcb488a3 | 2007-07-17 04:04:51 -0700 | [diff] [blame] | 1787 | [OP_SECINFO] = { |
| 1788 | .op_func = (nfsd4op_func)nfsd4_secinfo, |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1789 | .op_flags = OP_HANDLES_WRONGSEC, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1790 | .op_name = "OP_SECINFO", |
Andy Adamson | dcb488a3 | 2007-07-17 04:04:51 -0700 | [diff] [blame] | 1791 | }, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1792 | [OP_SETATTR] = { |
| 1793 | .op_func = (nfsd4op_func)nfsd4_setattr, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1794 | .op_name = "OP_SETATTR", |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 1795 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1796 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_setattr_rsize, |
Tigran Mkrtchyan | 1e97b51 | 2012-02-13 22:55:30 +0100 | [diff] [blame] | 1797 | .op_get_currentstateid = (stateid_getter)nfsd4_get_setattrstateid, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1798 | }, |
| 1799 | [OP_SETCLIENTID] = { |
| 1800 | .op_func = (nfsd4op_func)nfsd4_setclientid, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1801 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 1802 | | OP_MODIFIES_SOMETHING | OP_CACHEME, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1803 | .op_name = "OP_SETCLIENTID", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1804 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_setclientid_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1805 | }, |
| 1806 | [OP_SETCLIENTID_CONFIRM] = { |
| 1807 | .op_func = (nfsd4op_func)nfsd4_setclientid_confirm, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1808 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 1809 | | OP_MODIFIES_SOMETHING | OP_CACHEME, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1810 | .op_name = "OP_SETCLIENTID_CONFIRM", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1811 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1812 | }, |
| 1813 | [OP_VERIFY] = { |
| 1814 | .op_func = (nfsd4op_func)nfsd4_verify, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1815 | .op_name = "OP_VERIFY", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1816 | }, |
| 1817 | [OP_WRITE] = { |
| 1818 | .op_func = (nfsd4op_func)nfsd4_write, |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 1819 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1820 | .op_name = "OP_WRITE", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1821 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_write_rsize, |
Tigran Mkrtchyan | 30813e2 | 2012-02-13 22:55:26 +0100 | [diff] [blame] | 1822 | .op_get_currentstateid = (stateid_getter)nfsd4_get_writestateid, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1823 | }, |
| 1824 | [OP_RELEASE_LOCKOWNER] = { |
| 1825 | .op_func = (nfsd4op_func)nfsd4_release_lockowner, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1826 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
| 1827 | | OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1828 | .op_name = "OP_RELEASE_LOCKOWNER", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1829 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1830 | }, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 1831 | |
| 1832 | /* NFSv4.1 operations */ |
| 1833 | [OP_EXCHANGE_ID] = { |
| 1834 | .op_func = (nfsd4op_func)nfsd4_exchange_id, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1835 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
| 1836 | | OP_MODIFIES_SOMETHING, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 1837 | .op_name = "OP_EXCHANGE_ID", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1838 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_exchange_id_rsize, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 1839 | }, |
J. Bruce Fields | cb73a9f | 2012-11-01 18:09:48 -0400 | [diff] [blame] | 1840 | [OP_BACKCHANNEL_CTL] = { |
| 1841 | .op_func = (nfsd4op_func)nfsd4_backchannel_ctl, |
| 1842 | .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING, |
| 1843 | .op_name = "OP_BACKCHANNEL_CTL", |
| 1844 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
| 1845 | }, |
J. Bruce Fields | 1d1bc8f | 2010-10-04 23:12:59 -0400 | [diff] [blame] | 1846 | [OP_BIND_CONN_TO_SESSION] = { |
| 1847 | .op_func = (nfsd4op_func)nfsd4_bind_conn_to_session, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1848 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
| 1849 | | OP_MODIFIES_SOMETHING, |
J. Bruce Fields | 1d1bc8f | 2010-10-04 23:12:59 -0400 | [diff] [blame] | 1850 | .op_name = "OP_BIND_CONN_TO_SESSION", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1851 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_bind_conn_to_session_rsize, |
J. Bruce Fields | 1d1bc8f | 2010-10-04 23:12:59 -0400 | [diff] [blame] | 1852 | }, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 1853 | [OP_CREATE_SESSION] = { |
| 1854 | .op_func = (nfsd4op_func)nfsd4_create_session, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1855 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
| 1856 | | OP_MODIFIES_SOMETHING, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 1857 | .op_name = "OP_CREATE_SESSION", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1858 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_create_session_rsize, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 1859 | }, |
| 1860 | [OP_DESTROY_SESSION] = { |
| 1861 | .op_func = (nfsd4op_func)nfsd4_destroy_session, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1862 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
| 1863 | | OP_MODIFIES_SOMETHING, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 1864 | .op_name = "OP_DESTROY_SESSION", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1865 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 1866 | }, |
| 1867 | [OP_SEQUENCE] = { |
| 1868 | .op_func = (nfsd4op_func)nfsd4_sequence, |
Andy Adamson | f9bb94c4 | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1869 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 1870 | .op_name = "OP_SEQUENCE", |
| 1871 | }, |
Benny Halevy | 094b5d7 | 2011-06-16 11:39:10 -0400 | [diff] [blame] | 1872 | [OP_DESTROY_CLIENTID] = { |
Mi Jinlong | 345c284 | 2011-10-20 17:51:39 +0800 | [diff] [blame] | 1873 | .op_func = (nfsd4op_func)nfsd4_destroy_clientid, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1874 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
| 1875 | | OP_MODIFIES_SOMETHING, |
Benny Halevy | 094b5d7 | 2011-06-16 11:39:10 -0400 | [diff] [blame] | 1876 | .op_name = "OP_DESTROY_CLIENTID", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1877 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
Benny Halevy | 094b5d7 | 2011-06-16 11:39:10 -0400 | [diff] [blame] | 1878 | }, |
J. Bruce Fields | 4dc6ec0 | 2010-04-19 15:11:28 -0400 | [diff] [blame] | 1879 | [OP_RECLAIM_COMPLETE] = { |
| 1880 | .op_func = (nfsd4op_func)nfsd4_reclaim_complete, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1881 | .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING, |
J. Bruce Fields | 4dc6ec0 | 2010-04-19 15:11:28 -0400 | [diff] [blame] | 1882 | .op_name = "OP_RECLAIM_COMPLETE", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1883 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
J. Bruce Fields | 4dc6ec0 | 2010-04-19 15:11:28 -0400 | [diff] [blame] | 1884 | }, |
J. Bruce Fields | 04f4ad1 | 2010-12-16 09:51:13 -0500 | [diff] [blame] | 1885 | [OP_SECINFO_NO_NAME] = { |
| 1886 | .op_func = (nfsd4op_func)nfsd4_secinfo_no_name, |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1887 | .op_flags = OP_HANDLES_WRONGSEC, |
J. Bruce Fields | 04f4ad1 | 2010-12-16 09:51:13 -0500 | [diff] [blame] | 1888 | .op_name = "OP_SECINFO_NO_NAME", |
| 1889 | }, |
Bryan Schumaker | 1745680 | 2011-07-13 10:50:48 -0400 | [diff] [blame] | 1890 | [OP_TEST_STATEID] = { |
| 1891 | .op_func = (nfsd4op_func)nfsd4_test_stateid, |
| 1892 | .op_flags = ALLOWED_WITHOUT_FH, |
| 1893 | .op_name = "OP_TEST_STATEID", |
| 1894 | }, |
Bryan Schumaker | e1ca12d | 2011-07-13 11:04:21 -0400 | [diff] [blame] | 1895 | [OP_FREE_STATEID] = { |
| 1896 | .op_func = (nfsd4op_func)nfsd4_free_stateid, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1897 | .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING, |
Bryan Schumaker | e1ca12d | 2011-07-13 11:04:21 -0400 | [diff] [blame] | 1898 | .op_name = "OP_FREE_STATEID", |
J. Bruce Fields | a1dc695 | 2012-12-17 18:17:13 -0500 | [diff] [blame] | 1899 | .op_get_currentstateid = (stateid_getter)nfsd4_get_freestateid, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1900 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
Bryan Schumaker | e1ca12d | 2011-07-13 11:04:21 -0400 | [diff] [blame] | 1901 | }, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1902 | }; |
| 1903 | |
J. Bruce Fields | 4f0cefb | 2014-03-11 15:39:13 -0400 | [diff] [blame] | 1904 | int nfsd4_max_reply(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1905 | { |
| 1906 | struct nfsd4_operation *opdesc; |
| 1907 | nfsd4op_rsize estimator; |
| 1908 | |
| 1909 | if (op->opnum == OP_ILLEGAL) |
| 1910 | return op_encode_hdr_size * sizeof(__be32); |
| 1911 | opdesc = OPDESC(op); |
| 1912 | estimator = opdesc->op_rsize_bop; |
| 1913 | return estimator ? estimator(rqstp, op) : PAGE_SIZE; |
| 1914 | } |
| 1915 | |
J. Bruce Fields | 07d1f80 | 2014-03-06 20:39:29 -0500 | [diff] [blame] | 1916 | void warn_on_nonidempotent_op(struct nfsd4_op *op) |
| 1917 | { |
| 1918 | if (OPDESC(op)->op_flags & OP_MODIFIES_SOMETHING) { |
| 1919 | pr_err("unable to encode reply to nonidempotent op %d (%s)\n", |
| 1920 | op->opnum, nfsd4_op_name(op->opnum)); |
| 1921 | WARN_ON_ONCE(1); |
| 1922 | } |
| 1923 | } |
| 1924 | |
Adrian Bunk | f1c7f79 | 2008-08-08 19:26:42 +0300 | [diff] [blame] | 1925 | static const char *nfsd4_op_name(unsigned opnum) |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1926 | { |
| 1927 | if (opnum < ARRAY_SIZE(nfsd4_ops)) |
| 1928 | return nfsd4_ops[opnum].op_name; |
| 1929 | return "unknown_operation"; |
| 1930 | } |
| 1931 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1932 | #define nfsd4_voidres nfsd4_voidargs |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1933 | struct nfsd4_voidargs { int dummy; }; |
| 1934 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1935 | static struct svc_procedure nfsd_procedures4[2] = { |
Yu Zhiguo | 0a93a47 | 2009-05-19 14:09:54 +0800 | [diff] [blame] | 1936 | [NFSPROC4_NULL] = { |
| 1937 | .pc_func = (svc_procfunc) nfsd4_proc_null, |
| 1938 | .pc_encode = (kxdrproc_t) nfs4svc_encode_voidres, |
| 1939 | .pc_argsize = sizeof(struct nfsd4_voidargs), |
| 1940 | .pc_ressize = sizeof(struct nfsd4_voidres), |
| 1941 | .pc_cachetype = RC_NOCACHE, |
| 1942 | .pc_xdrressize = 1, |
| 1943 | }, |
| 1944 | [NFSPROC4_COMPOUND] = { |
| 1945 | .pc_func = (svc_procfunc) nfsd4_proc_compound, |
| 1946 | .pc_decode = (kxdrproc_t) nfs4svc_decode_compoundargs, |
| 1947 | .pc_encode = (kxdrproc_t) nfs4svc_encode_compoundres, |
| 1948 | .pc_argsize = sizeof(struct nfsd4_compoundargs), |
| 1949 | .pc_ressize = sizeof(struct nfsd4_compoundres), |
J. Bruce Fields | 3e98abf | 2011-07-16 17:15:10 -0400 | [diff] [blame] | 1950 | .pc_release = nfsd4_release_compoundargs, |
Yu Zhiguo | 0a93a47 | 2009-05-19 14:09:54 +0800 | [diff] [blame] | 1951 | .pc_cachetype = RC_NOCACHE, |
| 1952 | .pc_xdrressize = NFSD_BUFSIZE/4, |
| 1953 | }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1954 | }; |
| 1955 | |
| 1956 | struct svc_version nfsd_version4 = { |
| 1957 | .vs_vers = 4, |
| 1958 | .vs_nproc = 2, |
| 1959 | .vs_proc = nfsd_procedures4, |
| 1960 | .vs_dispatch = nfsd_dispatch, |
| 1961 | .vs_xdrsize = NFS4_SVC_XDRSIZE, |
Kinglong Mee | 7e55b59 | 2013-12-31 13:17:20 +0800 | [diff] [blame] | 1962 | .vs_rpcb_optnl = 1, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1963 | }; |
| 1964 | |
| 1965 | /* |
| 1966 | * Local variables: |
| 1967 | * c-basic-offset: 8 |
| 1968 | * End: |
| 1969 | */ |