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 | |
Boaz Harrosh | 9a74af2 | 2009-12-03 20:30:56 +0200 | [diff] [blame] | 38 | #include "cache.h" |
| 39 | #include "xdr4.h" |
J. Bruce Fields | 0a3adad | 2009-11-04 18:12:35 -0500 | [diff] [blame] | 40 | #include "vfs.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 41 | |
| 42 | #define NFSDDBG_FACILITY NFSDDBG_PROC |
| 43 | |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 44 | static u32 nfsd_attrmask[] = { |
| 45 | NFSD_WRITEABLE_ATTRS_WORD0, |
| 46 | NFSD_WRITEABLE_ATTRS_WORD1, |
| 47 | NFSD_WRITEABLE_ATTRS_WORD2 |
| 48 | }; |
| 49 | |
| 50 | static u32 nfsd41_ex_attrmask[] = { |
| 51 | NFSD_SUPPATTR_EXCLCREAT_WORD0, |
| 52 | NFSD_SUPPATTR_EXCLCREAT_WORD1, |
| 53 | NFSD_SUPPATTR_EXCLCREAT_WORD2 |
| 54 | }; |
| 55 | |
| 56 | static __be32 |
| 57 | check_attr_support(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 58 | u32 *bmval, u32 *writable) |
| 59 | { |
| 60 | struct dentry *dentry = cstate->current_fh.fh_dentry; |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 61 | |
| 62 | /* |
| 63 | * Check about attributes are supported by the NFSv4 server or not. |
| 64 | * According to spec, unsupported attributes return ERR_ATTRNOTSUPP. |
| 65 | */ |
| 66 | if ((bmval[0] & ~nfsd_suppattrs0(cstate->minorversion)) || |
| 67 | (bmval[1] & ~nfsd_suppattrs1(cstate->minorversion)) || |
| 68 | (bmval[2] & ~nfsd_suppattrs2(cstate->minorversion))) |
| 69 | return nfserr_attrnotsupp; |
| 70 | |
| 71 | /* |
Trond Myklebust | a06b126 | 2009-08-31 15:16:11 -0400 | [diff] [blame] | 72 | * Check FATTR4_WORD0_ACL can be supported |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 73 | * in current environment or not. |
| 74 | */ |
| 75 | if (bmval[0] & FATTR4_WORD0_ACL) { |
| 76 | if (!IS_POSIXACL(dentry->d_inode)) |
| 77 | return nfserr_attrnotsupp; |
| 78 | } |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 79 | |
| 80 | /* |
| 81 | * According to spec, read-only attributes return ERR_INVAL. |
| 82 | */ |
| 83 | if (writable) { |
| 84 | if ((bmval[0] & ~writable[0]) || (bmval[1] & ~writable[1]) || |
| 85 | (bmval[2] & ~writable[2])) |
| 86 | return nfserr_inval; |
| 87 | } |
| 88 | |
| 89 | return nfs_ok; |
| 90 | } |
| 91 | |
| 92 | static __be32 |
| 93 | nfsd4_check_open_attributes(struct svc_rqst *rqstp, |
| 94 | struct nfsd4_compound_state *cstate, struct nfsd4_open *open) |
| 95 | { |
| 96 | __be32 status = nfs_ok; |
| 97 | |
| 98 | if (open->op_create == NFS4_OPEN_CREATE) { |
| 99 | if (open->op_createmode == NFS4_CREATE_UNCHECKED |
| 100 | || open->op_createmode == NFS4_CREATE_GUARDED) |
| 101 | status = check_attr_support(rqstp, cstate, |
| 102 | open->op_bmval, nfsd_attrmask); |
| 103 | else if (open->op_createmode == NFS4_CREATE_EXCLUSIVE4_1) |
| 104 | status = check_attr_support(rqstp, cstate, |
| 105 | open->op_bmval, nfsd41_ex_attrmask); |
| 106 | } |
| 107 | |
| 108 | return status; |
| 109 | } |
| 110 | |
Yu Zhiguo | 9208faf | 2009-07-06 17:24:16 +0800 | [diff] [blame] | 111 | static int |
| 112 | is_create_with_attrs(struct nfsd4_open *open) |
| 113 | { |
| 114 | return open->op_create == NFS4_OPEN_CREATE |
| 115 | && (open->op_createmode == NFS4_CREATE_UNCHECKED |
| 116 | || open->op_createmode == NFS4_CREATE_GUARDED |
| 117 | || open->op_createmode == NFS4_CREATE_EXCLUSIVE4_1); |
| 118 | } |
| 119 | |
| 120 | /* |
| 121 | * if error occurs when setting the acl, just clear the acl bit |
| 122 | * in the returned attr bitmap. |
| 123 | */ |
| 124 | static void |
| 125 | do_set_nfs4_acl(struct svc_rqst *rqstp, struct svc_fh *fhp, |
| 126 | struct nfs4_acl *acl, u32 *bmval) |
| 127 | { |
| 128 | __be32 status; |
| 129 | |
| 130 | status = nfsd4_set_nfs4_acl(rqstp, fhp, acl); |
| 131 | if (status) |
| 132 | /* |
| 133 | * We should probably fail the whole open at this point, |
| 134 | * but we've already created the file, so it's too late; |
| 135 | * So this seems the least of evils: |
| 136 | */ |
| 137 | bmval[0] &= ~FATTR4_WORD0_ACL; |
| 138 | } |
| 139 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 140 | static inline void |
| 141 | fh_dup2(struct svc_fh *dst, struct svc_fh *src) |
| 142 | { |
| 143 | fh_put(dst); |
| 144 | dget(src->fh_dentry); |
| 145 | if (src->fh_export) |
| 146 | cache_get(&src->fh_export->h); |
| 147 | *dst = *src; |
| 148 | } |
| 149 | |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 150 | static __be32 |
J. Bruce Fields | dc730e1 | 2006-10-17 00:10:13 -0700 | [diff] [blame] | 151 | 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] | 152 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 153 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 154 | |
| 155 | if (open->op_truncate && |
| 156 | !(open->op_share_access & NFS4_SHARE_ACCESS_WRITE)) |
| 157 | return nfserr_inval; |
| 158 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 159 | if (open->op_share_access & NFS4_SHARE_ACCESS_READ) |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 160 | accmode |= NFSD_MAY_READ; |
J. Bruce Fields | 9801d8a | 2006-10-17 00:10:14 -0700 | [diff] [blame] | 161 | if (open->op_share_access & NFS4_SHARE_ACCESS_WRITE) |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 162 | accmode |= (NFSD_MAY_WRITE | NFSD_MAY_TRUNC); |
J. Bruce Fields | 57ecb34 | 2009-12-01 19:42:57 -0500 | [diff] [blame] | 163 | if (open->op_share_deny & NFS4_SHARE_DENY_READ) |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 164 | accmode |= NFSD_MAY_WRITE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 165 | |
| 166 | status = fh_verify(rqstp, current_fh, S_IFREG, accmode); |
| 167 | |
| 168 | return status; |
| 169 | } |
| 170 | |
J. Bruce Fields | aadab6c | 2011-08-15 16:55:02 -0400 | [diff] [blame] | 171 | static __be32 nfsd_check_obj_isreg(struct svc_fh *fh) |
| 172 | { |
| 173 | umode_t mode = fh->fh_dentry->d_inode->i_mode; |
| 174 | |
| 175 | if (S_ISREG(mode)) |
| 176 | return nfs_ok; |
| 177 | if (S_ISDIR(mode)) |
| 178 | return nfserr_isdir; |
| 179 | /* |
| 180 | * Using err_symlink as our catch-all case may look odd; but |
| 181 | * there's no other obvious error for this case in 4.0, and we |
| 182 | * happen to know that it will cause the linux v4 client to do |
| 183 | * the right thing on attempts to open something other than a |
| 184 | * regular file. |
| 185 | */ |
| 186 | return nfserr_symlink; |
| 187 | } |
| 188 | |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 189 | static __be32 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 190 | do_open_lookup(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open *open) |
| 191 | { |
| 192 | struct svc_fh resfh; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 193 | __be32 status; |
J. Bruce Fields | 81ac95c | 2006-11-08 17:44:40 -0800 | [diff] [blame] | 194 | int created = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 195 | |
| 196 | fh_init(&resfh, NFS4_FHSIZE); |
| 197 | open->op_truncate = 0; |
| 198 | |
| 199 | if (open->op_create) { |
Benny Halevy | 79fb54a | 2009-04-03 08:29:17 +0300 | [diff] [blame] | 200 | /* FIXME: check session persistence and pnfs flags. |
| 201 | * The nfsv4.1 spec requires the following semantics: |
| 202 | * |
| 203 | * Persistent | pNFS | Server REQUIRED | Client Allowed |
| 204 | * Reply Cache | server | | |
| 205 | * -------------+--------+-----------------+-------------------- |
| 206 | * no | no | EXCLUSIVE4_1 | EXCLUSIVE4_1 |
| 207 | * | | | (SHOULD) |
| 208 | * | | and EXCLUSIVE4 | or EXCLUSIVE4 |
| 209 | * | | | (SHOULD NOT) |
| 210 | * no | yes | EXCLUSIVE4_1 | EXCLUSIVE4_1 |
| 211 | * yes | no | GUARDED4 | GUARDED4 |
| 212 | * yes | yes | GUARDED4 | GUARDED4 |
| 213 | */ |
| 214 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 215 | /* |
| 216 | * Note: create modes (UNCHECKED,GUARDED...) are the same |
Mi Jinlong | ac6721a | 2011-04-20 17:06:25 +0800 | [diff] [blame] | 217 | * in NFSv4 as in v3 except EXCLUSIVE4_1. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 218 | */ |
Mi Jinlong | ac6721a | 2011-04-20 17:06:25 +0800 | [diff] [blame] | 219 | status = do_nfsd_create(rqstp, current_fh, open->op_fname.data, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 220 | open->op_fname.len, &open->op_iattr, |
| 221 | &resfh, open->op_createmode, |
Jeff Layton | 749997e | 2007-07-31 00:37:51 -0700 | [diff] [blame] | 222 | (u32 *)open->op_verf.data, |
| 223 | &open->op_truncate, &created); |
| 224 | |
J. Bruce Fields | 99f8872 | 2009-02-02 15:12:27 -0500 | [diff] [blame] | 225 | /* |
| 226 | * Following rfc 3530 14.2.16, use the returned bitmask |
| 227 | * to indicate which attributes we used to store the |
| 228 | * verifier: |
Jeff Layton | 749997e | 2007-07-31 00:37:51 -0700 | [diff] [blame] | 229 | */ |
| 230 | if (open->op_createmode == NFS4_CREATE_EXCLUSIVE && status == 0) |
J. Bruce Fields | 99f8872 | 2009-02-02 15:12:27 -0500 | [diff] [blame] | 231 | open->op_bmval[1] = (FATTR4_WORD1_TIME_ACCESS | |
Jeff Layton | 749997e | 2007-07-31 00:37:51 -0700 | [diff] [blame] | 232 | FATTR4_WORD1_TIME_MODIFY); |
J. Bruce Fields | af85852 | 2006-11-08 17:44:39 -0800 | [diff] [blame] | 233 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 234 | status = nfsd_lookup(rqstp, current_fh, |
| 235 | open->op_fname.data, open->op_fname.len, &resfh); |
| 236 | fh_unlock(current_fh); |
J. Bruce Fields | aadab6c | 2011-08-15 16:55:02 -0400 | [diff] [blame] | 237 | if (status) |
| 238 | goto out; |
| 239 | status = nfsd_check_obj_isreg(&resfh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 240 | } |
J. Bruce Fields | af85852 | 2006-11-08 17:44:39 -0800 | [diff] [blame] | 241 | if (status) |
| 242 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 243 | |
Yu Zhiguo | 9208faf | 2009-07-06 17:24:16 +0800 | [diff] [blame] | 244 | if (is_create_with_attrs(open) && open->op_acl != NULL) |
| 245 | do_set_nfs4_acl(rqstp, &resfh, open->op_acl, open->op_bmval); |
| 246 | |
J. Bruce Fields | af85852 | 2006-11-08 17:44:39 -0800 | [diff] [blame] | 247 | set_change_info(&open->op_cinfo, current_fh); |
J. Bruce Fields | 13024b7 | 2009-02-02 17:04:03 -0500 | [diff] [blame] | 248 | fh_dup2(current_fh, &resfh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 249 | |
J. Bruce Fields | af85852 | 2006-11-08 17:44:39 -0800 | [diff] [blame] | 250 | /* set reply cache */ |
J. Bruce Fields | a4773c08 | 2009-02-02 17:23:10 -0500 | [diff] [blame] | 251 | fh_copy_shallow(&open->op_stateowner->so_replay.rp_openfh, |
| 252 | &resfh.fh_handle); |
J. Bruce Fields | 81ac95c | 2006-11-08 17:44:40 -0800 | [diff] [blame] | 253 | if (!created) |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 254 | status = do_open_permission(rqstp, current_fh, open, |
| 255 | NFSD_MAY_NOP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 256 | |
J. Bruce Fields | af85852 | 2006-11-08 17:44:39 -0800 | [diff] [blame] | 257 | out: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 258 | fh_put(&resfh); |
| 259 | return status; |
| 260 | } |
| 261 | |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 262 | static __be32 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 263 | do_open_fhandle(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open *open) |
| 264 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 265 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 266 | |
| 267 | /* Only reclaims from previously confirmed clients are valid */ |
| 268 | if ((status = nfs4_check_open_reclaim(&open->op_clientid))) |
| 269 | return status; |
| 270 | |
| 271 | /* We don't know the target directory, and therefore can not |
| 272 | * set the change info |
| 273 | */ |
| 274 | |
| 275 | memset(&open->op_cinfo, 0, sizeof(struct nfsd4_change_info)); |
| 276 | |
| 277 | /* set replay cache */ |
J. Bruce Fields | a4773c08 | 2009-02-02 17:23:10 -0500 | [diff] [blame] | 278 | fh_copy_shallow(&open->op_stateowner->so_replay.rp_openfh, |
| 279 | ¤t_fh->fh_handle); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 280 | |
| 281 | open->op_truncate = (open->op_iattr.ia_valid & ATTR_SIZE) && |
| 282 | (open->op_iattr.ia_size == 0); |
| 283 | |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 284 | status = do_open_permission(rqstp, current_fh, open, |
| 285 | NFSD_MAY_OWNER_OVERRIDE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 286 | |
| 287 | return status; |
| 288 | } |
| 289 | |
Andy Adamson | 60adfc5 | 2009-04-03 08:28:50 +0300 | [diff] [blame] | 290 | static void |
| 291 | copy_clientid(clientid_t *clid, struct nfsd4_session *session) |
| 292 | { |
| 293 | struct nfsd4_sessionid *sid = |
| 294 | (struct nfsd4_sessionid *)session->se_sessionid.data; |
| 295 | |
| 296 | clid->cl_boot = sid->clientid.cl_boot; |
| 297 | clid->cl_id = sid->clientid.cl_id; |
| 298 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 299 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 300 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 301 | nfsd4_open(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
J.Bruce Fields | a4f1706a9 | 2006-12-13 00:35:28 -0800 | [diff] [blame] | 302 | struct nfsd4_open *open) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 303 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 304 | __be32 status; |
Andy Adamson | 6668958 | 2009-04-03 08:28:45 +0300 | [diff] [blame] | 305 | struct nfsd4_compoundres *resp; |
| 306 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 307 | dprintk("NFSD: nfsd4_open filename %.*s op_stateowner %p\n", |
| 308 | (int)open->op_fname.len, open->op_fname.data, |
| 309 | open->op_stateowner); |
| 310 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 311 | /* This check required by spec. */ |
| 312 | if (open->op_create && open->op_claim_type != NFS4_OPEN_CLAIM_NULL) |
| 313 | return nfserr_inval; |
| 314 | |
Mi Jinlong | ab1350b | 2011-07-14 15:06:26 +0800 | [diff] [blame] | 315 | /* |
| 316 | * RFC5661 18.51.3 |
| 317 | * Before RECLAIM_COMPLETE done, server should deny new lock |
| 318 | */ |
| 319 | if (nfsd4_has_session(cstate) && |
| 320 | !cstate->session->se_client->cl_firststate && |
| 321 | open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS) |
| 322 | return nfserr_grace; |
| 323 | |
Andy Adamson | 60adfc5 | 2009-04-03 08:28:50 +0300 | [diff] [blame] | 324 | if (nfsd4_has_session(cstate)) |
| 325 | copy_clientid(&open->op_clientid, cstate->session); |
| 326 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 327 | nfs4_lock_state(); |
| 328 | |
| 329 | /* check seqid for replay. set nfs4_owner */ |
Andy Adamson | 6668958 | 2009-04-03 08:28:45 +0300 | [diff] [blame] | 330 | resp = rqstp->rq_resp; |
| 331 | status = nfsd4_process_open1(&resp->cstate, open); |
Al Viro | a90b061 | 2006-10-19 23:29:03 -0700 | [diff] [blame] | 332 | if (status == nfserr_replay_me) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 333 | struct nfs4_replay *rp = &open->op_stateowner->so_replay; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 334 | fh_put(&cstate->current_fh); |
J. Bruce Fields | a4773c08 | 2009-02-02 17:23:10 -0500 | [diff] [blame] | 335 | fh_copy_shallow(&cstate->current_fh.fh_handle, |
| 336 | &rp->rp_openfh); |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 337 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 338 | if (status) |
| 339 | dprintk("nfsd4_open: replay failed" |
| 340 | " restoring previous filehandle\n"); |
| 341 | else |
Al Viro | a90b061 | 2006-10-19 23:29:03 -0700 | [diff] [blame] | 342 | status = nfserr_replay_me; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 343 | } |
| 344 | if (status) |
| 345 | goto out; |
J. Bruce Fields | fb553c0 | 2006-01-18 17:43:36 -0800 | [diff] [blame] | 346 | |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 347 | status = nfsd4_check_open_attributes(rqstp, cstate, open); |
| 348 | if (status) |
| 349 | goto out; |
| 350 | |
J. Bruce Fields | fb553c0 | 2006-01-18 17:43:36 -0800 | [diff] [blame] | 351 | /* Openowner is now set, so sequence id will get bumped. Now we need |
| 352 | * these checks before we do any creates: */ |
J. Bruce Fields | cbd0d51 | 2006-02-07 12:58:32 -0800 | [diff] [blame] | 353 | status = nfserr_grace; |
J. Bruce Fields | af558e3 | 2007-09-06 12:34:25 -0400 | [diff] [blame] | 354 | if (locks_in_grace() && open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS) |
J. Bruce Fields | cbd0d51 | 2006-02-07 12:58:32 -0800 | [diff] [blame] | 355 | goto out; |
| 356 | status = nfserr_no_grace; |
J. Bruce Fields | af558e3 | 2007-09-06 12:34:25 -0400 | [diff] [blame] | 357 | if (!locks_in_grace() && open->op_claim_type == NFS4_OPEN_CLAIM_PREVIOUS) |
J. Bruce Fields | cbd0d51 | 2006-02-07 12:58:32 -0800 | [diff] [blame] | 358 | goto out; |
J. Bruce Fields | fb553c0 | 2006-01-18 17:43:36 -0800 | [diff] [blame] | 359 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 360 | switch (open->op_claim_type) { |
NeilBrown | 0dd3c19 | 2005-06-23 22:02:56 -0700 | [diff] [blame] | 361 | case NFS4_OPEN_CLAIM_DELEGATE_CUR: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 362 | case NFS4_OPEN_CLAIM_NULL: |
| 363 | /* |
| 364 | * (1) set CURRENT_FH to the file being opened, |
| 365 | * creating it if necessary, (2) set open->op_cinfo, |
| 366 | * (3) set open->op_truncate if the file is to be |
| 367 | * truncated after opening, (4) do permission checking. |
| 368 | */ |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 369 | status = do_open_lookup(rqstp, &cstate->current_fh, |
| 370 | open); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 371 | if (status) |
| 372 | goto out; |
| 373 | break; |
| 374 | case NFS4_OPEN_CLAIM_PREVIOUS: |
J. Bruce Fields | a525825 | 2006-01-18 17:43:30 -0800 | [diff] [blame] | 375 | open->op_stateowner->so_confirmed = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 376 | /* |
| 377 | * The CURRENT_FH is already set to the file being |
| 378 | * opened. (1) set open->op_cinfo, (2) set |
| 379 | * open->op_truncate if the file is to be truncated |
| 380 | * after opening, (3) do permission checking. |
| 381 | */ |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 382 | status = do_open_fhandle(rqstp, &cstate->current_fh, |
| 383 | open); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 384 | if (status) |
| 385 | goto out; |
| 386 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 387 | case NFS4_OPEN_CLAIM_DELEGATE_PREV: |
J. Bruce Fields | a525825 | 2006-01-18 17:43:30 -0800 | [diff] [blame] | 388 | open->op_stateowner->so_confirmed = 1; |
J. Bruce Fields | 2fdada0 | 2007-07-27 16:10:37 -0400 | [diff] [blame] | 389 | dprintk("NFSD: unsupported OPEN claim type %d\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 390 | open->op_claim_type); |
| 391 | status = nfserr_notsupp; |
| 392 | goto out; |
| 393 | default: |
J. Bruce Fields | 2fdada0 | 2007-07-27 16:10:37 -0400 | [diff] [blame] | 394 | dprintk("NFSD: Invalid OPEN claim type %d\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 395 | open->op_claim_type); |
| 396 | status = nfserr_inval; |
| 397 | goto out; |
| 398 | } |
| 399 | /* |
| 400 | * nfsd4_process_open2() does the actual opening of the file. If |
| 401 | * successful, it (1) truncates the file if open->op_truncate was |
| 402 | * set, (2) sets open->op_stateid, (3) sets open->op_delegation. |
| 403 | */ |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 404 | status = nfsd4_process_open2(rqstp, &cstate->current_fh, open); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 405 | out: |
Neil Brown | f2327d9 | 2005-09-13 01:25:37 -0700 | [diff] [blame] | 406 | if (open->op_stateowner) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 407 | nfs4_get_stateowner(open->op_stateowner); |
J.Bruce Fields | a4f1706a9 | 2006-12-13 00:35:28 -0800 | [diff] [blame] | 408 | cstate->replay_owner = open->op_stateowner; |
Neil Brown | f2327d9 | 2005-09-13 01:25:37 -0700 | [diff] [blame] | 409 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 410 | nfs4_unlock_state(); |
| 411 | return status; |
| 412 | } |
| 413 | |
| 414 | /* |
| 415 | * filehandle-manipulating ops. |
| 416 | */ |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 417 | static __be32 |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 418 | nfsd4_getfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 419 | struct svc_fh **getfh) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 420 | { |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 421 | if (!cstate->current_fh.fh_dentry) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 422 | return nfserr_nofilehandle; |
| 423 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 424 | *getfh = &cstate->current_fh; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 425 | return nfs_ok; |
| 426 | } |
| 427 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 428 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 429 | nfsd4_putfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 430 | struct nfsd4_putfh *putfh) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 431 | { |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 432 | fh_put(&cstate->current_fh); |
| 433 | cstate->current_fh.fh_handle.fh_size = putfh->pf_fhlen; |
| 434 | memcpy(&cstate->current_fh.fh_handle.fh_base, putfh->pf_fhval, |
| 435 | putfh->pf_fhlen); |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 436 | return fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_BYPASS_GSS); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 437 | } |
| 438 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 439 | static __be32 |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 440 | nfsd4_putrootfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 441 | void *arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 442 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 443 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 444 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 445 | fh_put(&cstate->current_fh); |
J. Bruce Fields | df547ef | 2007-07-17 04:04:43 -0700 | [diff] [blame] | 446 | status = exp_pseudoroot(rqstp, &cstate->current_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 447 | return status; |
| 448 | } |
| 449 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 450 | static __be32 |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 451 | nfsd4_restorefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 452 | void *arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 453 | { |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 454 | if (!cstate->save_fh.fh_dentry) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 455 | return nfserr_restorefh; |
| 456 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 457 | fh_dup2(&cstate->current_fh, &cstate->save_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 458 | return nfs_ok; |
| 459 | } |
| 460 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 461 | static __be32 |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 462 | nfsd4_savefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 463 | void *arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 464 | { |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 465 | if (!cstate->current_fh.fh_dentry) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 466 | return nfserr_nofilehandle; |
| 467 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 468 | fh_dup2(&cstate->save_fh, &cstate->current_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 469 | return nfs_ok; |
| 470 | } |
| 471 | |
| 472 | /* |
| 473 | * misc nfsv4 ops |
| 474 | */ |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 475 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 476 | nfsd4_access(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 477 | struct nfsd4_access *access) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 478 | { |
| 479 | if (access->ac_req_access & ~NFS3_ACCESS_FULL) |
| 480 | return nfserr_inval; |
| 481 | |
| 482 | access->ac_resp_access = access->ac_req_access; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 483 | return nfsd_access(rqstp, &cstate->current_fh, &access->ac_resp_access, |
| 484 | &access->ac_supported); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 485 | } |
| 486 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 487 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 488 | nfsd4_commit(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 489 | struct nfsd4_commit *commit) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 490 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 491 | u32 *p = (u32 *)commit->co_verf.data; |
| 492 | *p++ = nfssvc_boot.tv_sec; |
| 493 | *p++ = nfssvc_boot.tv_usec; |
| 494 | |
J. Bruce Fields | 75c096f | 2011-08-15 18:39:32 -0400 | [diff] [blame^] | 495 | return nfsd_commit(rqstp, &cstate->current_fh, commit->co_offset, |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 496 | commit->co_count); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 497 | } |
| 498 | |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 499 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 500 | nfsd4_create(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 501 | struct nfsd4_create *create) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 502 | { |
| 503 | struct svc_fh resfh; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 504 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 505 | dev_t rdev; |
| 506 | |
| 507 | fh_init(&resfh, NFS4_FHSIZE); |
| 508 | |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 509 | status = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, |
| 510 | NFSD_MAY_CREATE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 511 | if (status) |
| 512 | return status; |
| 513 | |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 514 | status = check_attr_support(rqstp, cstate, create->cr_bmval, |
| 515 | nfsd_attrmask); |
| 516 | if (status) |
| 517 | return status; |
| 518 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 519 | switch (create->cr_type) { |
| 520 | case NF4LNK: |
| 521 | /* ugh! we have to null-terminate the linktext, or |
| 522 | * vfs_symlink() will choke. it is always safe to |
| 523 | * null-terminate by brute force, since at worst we |
| 524 | * will overwrite the first byte of the create namelen |
| 525 | * in the XDR buffer, which has already been extracted |
| 526 | * during XDR decode. |
| 527 | */ |
| 528 | create->cr_linkname[create->cr_linklen] = 0; |
| 529 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 530 | status = nfsd_symlink(rqstp, &cstate->current_fh, |
| 531 | create->cr_name, create->cr_namelen, |
| 532 | create->cr_linkname, create->cr_linklen, |
| 533 | &resfh, &create->cr_iattr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 534 | break; |
| 535 | |
| 536 | case NF4BLK: |
| 537 | rdev = MKDEV(create->cr_specdata1, create->cr_specdata2); |
| 538 | if (MAJOR(rdev) != create->cr_specdata1 || |
| 539 | MINOR(rdev) != create->cr_specdata2) |
| 540 | return nfserr_inval; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 541 | status = nfsd_create(rqstp, &cstate->current_fh, |
| 542 | create->cr_name, create->cr_namelen, |
| 543 | &create->cr_iattr, S_IFBLK, rdev, &resfh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 544 | break; |
| 545 | |
| 546 | case NF4CHR: |
| 547 | rdev = MKDEV(create->cr_specdata1, create->cr_specdata2); |
| 548 | if (MAJOR(rdev) != create->cr_specdata1 || |
| 549 | MINOR(rdev) != create->cr_specdata2) |
| 550 | return nfserr_inval; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 551 | status = nfsd_create(rqstp, &cstate->current_fh, |
| 552 | create->cr_name, create->cr_namelen, |
| 553 | &create->cr_iattr,S_IFCHR, rdev, &resfh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 554 | break; |
| 555 | |
| 556 | case NF4SOCK: |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 557 | status = nfsd_create(rqstp, &cstate->current_fh, |
| 558 | create->cr_name, create->cr_namelen, |
| 559 | &create->cr_iattr, S_IFSOCK, 0, &resfh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 560 | break; |
| 561 | |
| 562 | case NF4FIFO: |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 563 | status = nfsd_create(rqstp, &cstate->current_fh, |
| 564 | create->cr_name, create->cr_namelen, |
| 565 | &create->cr_iattr, S_IFIFO, 0, &resfh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 566 | break; |
| 567 | |
| 568 | case NF4DIR: |
| 569 | create->cr_iattr.ia_valid &= ~ATTR_SIZE; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 570 | status = nfsd_create(rqstp, &cstate->current_fh, |
| 571 | create->cr_name, create->cr_namelen, |
| 572 | &create->cr_iattr, S_IFDIR, 0, &resfh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 573 | break; |
| 574 | |
| 575 | default: |
| 576 | status = nfserr_badtype; |
| 577 | } |
| 578 | |
Yu Zhiguo | 9208faf | 2009-07-06 17:24:16 +0800 | [diff] [blame] | 579 | if (status) |
| 580 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 581 | |
Yu Zhiguo | 9208faf | 2009-07-06 17:24:16 +0800 | [diff] [blame] | 582 | if (create->cr_acl != NULL) |
| 583 | do_set_nfs4_acl(rqstp, &resfh, create->cr_acl, |
| 584 | create->cr_bmval); |
| 585 | |
| 586 | fh_unlock(&cstate->current_fh); |
| 587 | set_change_info(&create->cr_cinfo, &cstate->current_fh); |
| 588 | fh_dup2(&cstate->current_fh, &resfh); |
| 589 | out: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 590 | fh_put(&resfh); |
| 591 | return status; |
| 592 | } |
| 593 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 594 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 595 | nfsd4_getattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 596 | struct nfsd4_getattr *getattr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 597 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 598 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 599 | |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 600 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 601 | if (status) |
| 602 | return status; |
| 603 | |
| 604 | if (getattr->ga_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1) |
| 605 | return nfserr_inval; |
| 606 | |
Andy Adamson | 7e70570 | 2009-04-03 08:29:11 +0300 | [diff] [blame] | 607 | getattr->ga_bmval[0] &= nfsd_suppattrs0(cstate->minorversion); |
| 608 | getattr->ga_bmval[1] &= nfsd_suppattrs1(cstate->minorversion); |
| 609 | getattr->ga_bmval[2] &= nfsd_suppattrs2(cstate->minorversion); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 610 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 611 | getattr->ga_fhp = &cstate->current_fh; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 612 | return nfs_ok; |
| 613 | } |
| 614 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 615 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 616 | nfsd4_link(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 617 | struct nfsd4_link *link) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 618 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 619 | __be32 status = nfserr_nofilehandle; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 620 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 621 | if (!cstate->save_fh.fh_dentry) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 622 | return status; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 623 | status = nfsd_link(rqstp, &cstate->current_fh, |
| 624 | link->li_name, link->li_namelen, &cstate->save_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 625 | if (!status) |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 626 | set_change_info(&link->li_cinfo, &cstate->current_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 627 | return status; |
| 628 | } |
| 629 | |
J. Bruce Fields | 0ff7ab4 | 2010-12-16 10:06:27 -0500 | [diff] [blame] | 630 | 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] | 631 | { |
| 632 | struct svc_fh tmp_fh; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 633 | __be32 ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 634 | |
| 635 | fh_init(&tmp_fh, NFS4_FHSIZE); |
J. Bruce Fields | df547ef | 2007-07-17 04:04:43 -0700 | [diff] [blame] | 636 | ret = exp_pseudoroot(rqstp, &tmp_fh); |
| 637 | if (ret) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 638 | return ret; |
J. Bruce Fields | 0ff7ab4 | 2010-12-16 10:06:27 -0500 | [diff] [blame] | 639 | if (tmp_fh.fh_dentry == fh->fh_dentry) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 640 | fh_put(&tmp_fh); |
| 641 | return nfserr_noent; |
| 642 | } |
| 643 | fh_put(&tmp_fh); |
J. Bruce Fields | 0ff7ab4 | 2010-12-16 10:06:27 -0500 | [diff] [blame] | 644 | return nfsd_lookup(rqstp, fh, "..", 2, fh); |
| 645 | } |
| 646 | |
| 647 | static __be32 |
| 648 | nfsd4_lookupp(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 649 | void *arg) |
| 650 | { |
| 651 | return nfsd4_do_lookupp(rqstp, &cstate->current_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 652 | } |
| 653 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 654 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 655 | nfsd4_lookup(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 656 | struct nfsd4_lookup *lookup) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 657 | { |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 658 | return nfsd_lookup(rqstp, &cstate->current_fh, |
| 659 | lookup->lo_name, lookup->lo_len, |
| 660 | &cstate->current_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 661 | } |
| 662 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 663 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 664 | nfsd4_read(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 665 | struct nfsd4_read *read) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 666 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 667 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 668 | |
| 669 | /* no need to check permission - this will be done in nfsd_read() */ |
| 670 | |
NeilBrown | 7e06b7f | 2005-06-23 22:03:13 -0700 | [diff] [blame] | 671 | read->rd_filp = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 672 | if (read->rd_offset >= OFFSET_MAX) |
| 673 | return nfserr_inval; |
| 674 | |
| 675 | nfs4_lock_state(); |
| 676 | /* check stateid */ |
Benny Halevy | dd453df | 2009-04-03 08:28:41 +0300 | [diff] [blame] | 677 | if ((status = nfs4_preprocess_stateid_op(cstate, &read->rd_stateid, |
| 678 | RD_STATE, &read->rd_filp))) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 679 | dprintk("NFSD: nfsd4_read: couldn't process stateid!\n"); |
| 680 | goto out; |
| 681 | } |
NeilBrown | 7e06b7f | 2005-06-23 22:03:13 -0700 | [diff] [blame] | 682 | if (read->rd_filp) |
| 683 | get_file(read->rd_filp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 684 | status = nfs_ok; |
| 685 | out: |
| 686 | nfs4_unlock_state(); |
| 687 | read->rd_rqstp = rqstp; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 688 | read->rd_fhp = &cstate->current_fh; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 689 | return status; |
| 690 | } |
| 691 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 692 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 693 | nfsd4_readdir(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 694 | struct nfsd4_readdir *readdir) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 695 | { |
| 696 | u64 cookie = readdir->rd_cookie; |
| 697 | static const nfs4_verifier zeroverf; |
| 698 | |
| 699 | /* no need to check permission - this will be done in nfsd_readdir() */ |
| 700 | |
| 701 | if (readdir->rd_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1) |
| 702 | return nfserr_inval; |
| 703 | |
Andy Adamson | 7e70570 | 2009-04-03 08:29:11 +0300 | [diff] [blame] | 704 | readdir->rd_bmval[0] &= nfsd_suppattrs0(cstate->minorversion); |
| 705 | readdir->rd_bmval[1] &= nfsd_suppattrs1(cstate->minorversion); |
| 706 | readdir->rd_bmval[2] &= nfsd_suppattrs2(cstate->minorversion); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 707 | |
Bernd Schubert | 832023b | 2011-08-08 17:38:08 +0200 | [diff] [blame] | 708 | if ((cookie == 1) || (cookie == 2) || |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 709 | (cookie == 0 && memcmp(readdir->rd_verf.data, zeroverf.data, NFS4_VERIFIER_SIZE))) |
| 710 | return nfserr_bad_cookie; |
| 711 | |
| 712 | readdir->rd_rqstp = rqstp; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 713 | readdir->rd_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_readlink(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 719 | struct nfsd4_readlink *readlink) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 720 | { |
| 721 | readlink->rl_rqstp = rqstp; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 722 | readlink->rl_fhp = &cstate->current_fh; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 723 | return nfs_ok; |
| 724 | } |
| 725 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 726 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 727 | nfsd4_remove(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 728 | struct nfsd4_remove *remove) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 729 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 730 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 731 | |
J. Bruce Fields | af558e3 | 2007-09-06 12:34:25 -0400 | [diff] [blame] | 732 | if (locks_in_grace()) |
NeilBrown | c815afc | 2005-06-23 22:03:00 -0700 | [diff] [blame] | 733 | return nfserr_grace; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 734 | status = nfsd_unlink(rqstp, &cstate->current_fh, 0, |
| 735 | remove->rm_name, remove->rm_namelen); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 736 | if (!status) { |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 737 | fh_unlock(&cstate->current_fh); |
| 738 | set_change_info(&remove->rm_cinfo, &cstate->current_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 739 | } |
| 740 | return status; |
| 741 | } |
| 742 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 743 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 744 | nfsd4_rename(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 745 | struct nfsd4_rename *rename) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 746 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 747 | __be32 status = nfserr_nofilehandle; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 748 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 749 | if (!cstate->save_fh.fh_dentry) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 750 | return status; |
J. Bruce Fields | af558e3 | 2007-09-06 12:34:25 -0400 | [diff] [blame] | 751 | if (locks_in_grace() && !(cstate->save_fh.fh_export->ex_flags |
NeilBrown | c815afc | 2005-06-23 22:03:00 -0700 | [diff] [blame] | 752 | & NFSEXP_NOSUBTREECHECK)) |
| 753 | return nfserr_grace; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 754 | status = nfsd_rename(rqstp, &cstate->save_fh, rename->rn_sname, |
| 755 | rename->rn_snamelen, &cstate->current_fh, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 756 | rename->rn_tname, rename->rn_tnamelen); |
| 757 | |
| 758 | /* the underlying filesystem returns different error's than required |
| 759 | * by NFSv4. both save_fh and current_fh have been verified.. */ |
| 760 | if (status == nfserr_isdir) |
| 761 | status = nfserr_exist; |
| 762 | else if ((status == nfserr_notdir) && |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 763 | (S_ISDIR(cstate->save_fh.fh_dentry->d_inode->i_mode) && |
| 764 | S_ISDIR(cstate->current_fh.fh_dentry->d_inode->i_mode))) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 765 | status = nfserr_exist; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 766 | |
| 767 | if (!status) { |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 768 | set_change_info(&rename->rn_sinfo, &cstate->current_fh); |
| 769 | set_change_info(&rename->rn_tinfo, &cstate->save_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 770 | } |
| 771 | return status; |
| 772 | } |
| 773 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 774 | static __be32 |
Andy Adamson | dcb488a3 | 2007-07-17 04:04:51 -0700 | [diff] [blame] | 775 | nfsd4_secinfo(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 776 | struct nfsd4_secinfo *secinfo) |
| 777 | { |
| 778 | struct svc_fh resfh; |
| 779 | struct svc_export *exp; |
| 780 | struct dentry *dentry; |
| 781 | __be32 err; |
| 782 | |
| 783 | fh_init(&resfh, NFS4_FHSIZE); |
J. Bruce Fields | 29a78a3 | 2011-04-09 11:28:53 -0400 | [diff] [blame] | 784 | err = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, NFSD_MAY_EXEC); |
| 785 | if (err) |
| 786 | return err; |
Andy Adamson | dcb488a3 | 2007-07-17 04:04:51 -0700 | [diff] [blame] | 787 | err = nfsd_lookup_dentry(rqstp, &cstate->current_fh, |
| 788 | secinfo->si_name, secinfo->si_namelen, |
| 789 | &exp, &dentry); |
| 790 | if (err) |
| 791 | return err; |
| 792 | if (dentry->d_inode == NULL) { |
| 793 | exp_put(exp); |
| 794 | err = nfserr_noent; |
| 795 | } else |
| 796 | secinfo->si_exp = exp; |
| 797 | dput(dentry); |
J. Bruce Fields | 56560b9 | 2010-12-16 09:57:15 -0500 | [diff] [blame] | 798 | if (cstate->minorversion) |
| 799 | /* See rfc 5661 section 2.6.3.1.1.8 */ |
| 800 | fh_put(&cstate->current_fh); |
Andy Adamson | dcb488a3 | 2007-07-17 04:04:51 -0700 | [diff] [blame] | 801 | return err; |
| 802 | } |
| 803 | |
| 804 | static __be32 |
J. Bruce Fields | 04f4ad1 | 2010-12-16 09:51:13 -0500 | [diff] [blame] | 805 | nfsd4_secinfo_no_name(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 806 | struct nfsd4_secinfo_no_name *sin) |
| 807 | { |
| 808 | __be32 err; |
| 809 | |
| 810 | switch (sin->sin_style) { |
| 811 | case NFS4_SECINFO_STYLE4_CURRENT_FH: |
| 812 | break; |
| 813 | case NFS4_SECINFO_STYLE4_PARENT: |
| 814 | err = nfsd4_do_lookupp(rqstp, &cstate->current_fh); |
| 815 | if (err) |
| 816 | return err; |
| 817 | break; |
| 818 | default: |
| 819 | return nfserr_inval; |
| 820 | } |
| 821 | exp_get(cstate->current_fh.fh_export); |
| 822 | sin->sin_exp = cstate->current_fh.fh_export; |
| 823 | fh_put(&cstate->current_fh); |
| 824 | return nfs_ok; |
| 825 | } |
| 826 | |
| 827 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 828 | nfsd4_setattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 829 | struct nfsd4_setattr *setattr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 830 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 831 | __be32 status = nfs_ok; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 832 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 833 | if (setattr->sa_iattr.ia_valid & ATTR_SIZE) { |
| 834 | nfs4_lock_state(); |
Benny Halevy | dd453df | 2009-04-03 08:28:41 +0300 | [diff] [blame] | 835 | status = nfs4_preprocess_stateid_op(cstate, |
J. Bruce Fields | 6150ef0 | 2009-02-21 13:36:16 -0800 | [diff] [blame] | 836 | &setattr->sa_stateid, WR_STATE, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 837 | nfs4_unlock_state(); |
J. Bruce Fields | 375c554 | 2006-01-18 17:43:33 -0800 | [diff] [blame] | 838 | if (status) { |
Greg Banks | 3e3b480 | 2006-10-02 02:17:41 -0700 | [diff] [blame] | 839 | dprintk("NFSD: nfsd4_setattr: couldn't process stateid!\n"); |
J. Bruce Fields | 375c554 | 2006-01-18 17:43:33 -0800 | [diff] [blame] | 840 | return status; |
| 841 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 842 | } |
Dave Hansen | 18f335a | 2008-02-15 14:37:38 -0800 | [diff] [blame] | 843 | status = mnt_want_write(cstate->current_fh.fh_export->ex_path.mnt); |
| 844 | if (status) |
| 845 | return status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 846 | status = nfs_ok; |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 847 | |
| 848 | status = check_attr_support(rqstp, cstate, setattr->sa_bmval, |
| 849 | nfsd_attrmask); |
| 850 | if (status) |
| 851 | goto out; |
| 852 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 853 | if (setattr->sa_acl != NULL) |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 854 | status = nfsd4_set_nfs4_acl(rqstp, &cstate->current_fh, |
| 855 | setattr->sa_acl); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 856 | if (status) |
Dave Hansen | 18f335a | 2008-02-15 14:37:38 -0800 | [diff] [blame] | 857 | goto out; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 858 | status = nfsd_setattr(rqstp, &cstate->current_fh, &setattr->sa_iattr, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 859 | 0, (time_t)0); |
Dave Hansen | 18f335a | 2008-02-15 14:37:38 -0800 | [diff] [blame] | 860 | out: |
| 861 | mnt_drop_write(cstate->current_fh.fh_export->ex_path.mnt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 862 | return status; |
| 863 | } |
| 864 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 865 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 866 | nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 867 | struct nfsd4_write *write) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 868 | { |
| 869 | stateid_t *stateid = &write->wr_stateid; |
| 870 | struct file *filp = NULL; |
| 871 | u32 *p; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 872 | __be32 status = nfs_ok; |
David Shaw | 31dec25 | 2009-03-05 20:16:14 -0500 | [diff] [blame] | 873 | unsigned long cnt; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 874 | |
| 875 | /* no need to check permission - this will be done in nfsd_write() */ |
| 876 | |
| 877 | if (write->wr_offset >= OFFSET_MAX) |
| 878 | return nfserr_inval; |
| 879 | |
| 880 | nfs4_lock_state(); |
Benny Halevy | dd453df | 2009-04-03 08:28:41 +0300 | [diff] [blame] | 881 | status = nfs4_preprocess_stateid_op(cstate, stateid, WR_STATE, &filp); |
NeilBrown | 7e06b7f | 2005-06-23 22:03:13 -0700 | [diff] [blame] | 882 | if (filp) |
| 883 | get_file(filp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 884 | nfs4_unlock_state(); |
| 885 | |
J. Bruce Fields | 375c554 | 2006-01-18 17:43:33 -0800 | [diff] [blame] | 886 | if (status) { |
| 887 | dprintk("NFSD: nfsd4_write: couldn't process stateid!\n"); |
| 888 | return status; |
| 889 | } |
| 890 | |
David Shaw | 31dec25 | 2009-03-05 20:16:14 -0500 | [diff] [blame] | 891 | cnt = write->wr_buflen; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 892 | write->wr_how_written = write->wr_stable_how; |
| 893 | p = (u32 *)write->wr_verifier.data; |
| 894 | *p++ = nfssvc_boot.tv_sec; |
| 895 | *p++ = nfssvc_boot.tv_usec; |
| 896 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 897 | status = nfsd_write(rqstp, &cstate->current_fh, filp, |
| 898 | write->wr_offset, rqstp->rq_vec, write->wr_vlen, |
David Shaw | 31dec25 | 2009-03-05 20:16:14 -0500 | [diff] [blame] | 899 | &cnt, &write->wr_how_written); |
NeilBrown | 7e06b7f | 2005-06-23 22:03:13 -0700 | [diff] [blame] | 900 | if (filp) |
| 901 | fput(filp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 902 | |
David Shaw | 31dec25 | 2009-03-05 20:16:14 -0500 | [diff] [blame] | 903 | write->wr_bytes_written = cnt; |
| 904 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 905 | return status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 906 | } |
| 907 | |
| 908 | /* This routine never returns NFS_OK! If there are no other errors, it |
| 909 | * will return NFSERR_SAME or NFSERR_NOT_SAME depending on whether the |
| 910 | * attributes matched. VERIFY is implemented by mapping NFSERR_SAME |
| 911 | * to NFS_OK after the call; NVERIFY by mapping NFSERR_NOT_SAME to NFS_OK. |
| 912 | */ |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 913 | static __be32 |
J.Bruce Fields | c954e2a | 2006-12-13 00:35:31 -0800 | [diff] [blame] | 914 | _nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 915 | struct nfsd4_verify *verify) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 916 | { |
Al Viro | 2ebbc01 | 2006-10-19 23:28:58 -0700 | [diff] [blame] | 917 | __be32 *buf, *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 918 | int count; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 919 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 920 | |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 921 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 922 | if (status) |
| 923 | return status; |
| 924 | |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 925 | status = check_attr_support(rqstp, cstate, verify->ve_bmval, NULL); |
| 926 | if (status) |
| 927 | return status; |
| 928 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 929 | if ((verify->ve_bmval[0] & FATTR4_WORD0_RDATTR_ERROR) |
| 930 | || (verify->ve_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1)) |
| 931 | return nfserr_inval; |
| 932 | if (verify->ve_attrlen & 3) |
| 933 | return nfserr_inval; |
| 934 | |
| 935 | /* count in words: |
| 936 | * bitmap_len(1) + bitmap(2) + attr_len(1) = 4 |
| 937 | */ |
| 938 | count = 4 + (verify->ve_attrlen >> 2); |
| 939 | buf = kmalloc(count << 2, GFP_KERNEL); |
| 940 | if (!buf) |
| 941 | return nfserr_resource; |
| 942 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 943 | status = nfsd4_encode_fattr(&cstate->current_fh, |
| 944 | cstate->current_fh.fh_export, |
| 945 | cstate->current_fh.fh_dentry, buf, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 946 | &count, verify->ve_bmval, |
Frank Filz | 406a7ea | 2007-11-27 11:34:05 -0800 | [diff] [blame] | 947 | rqstp, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 948 | |
| 949 | /* this means that nfsd4_encode_fattr() ran out of space */ |
| 950 | if (status == nfserr_resource && count == 0) |
| 951 | status = nfserr_not_same; |
| 952 | if (status) |
| 953 | goto out_kfree; |
| 954 | |
Benny Halevy | 95ec28c | 2009-04-03 08:29:08 +0300 | [diff] [blame] | 955 | /* skip bitmap */ |
| 956 | p = buf + 1 + ntohl(buf[0]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 957 | status = nfserr_not_same; |
| 958 | if (ntohl(*p++) != verify->ve_attrlen) |
| 959 | goto out_kfree; |
| 960 | if (!memcmp(p, verify->ve_attrval, verify->ve_attrlen)) |
| 961 | status = nfserr_same; |
| 962 | |
| 963 | out_kfree: |
| 964 | kfree(buf); |
| 965 | return status; |
| 966 | } |
| 967 | |
J.Bruce Fields | c954e2a | 2006-12-13 00:35:31 -0800 | [diff] [blame] | 968 | static __be32 |
| 969 | nfsd4_nverify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 970 | struct nfsd4_verify *verify) |
| 971 | { |
| 972 | __be32 status; |
| 973 | |
| 974 | status = _nfsd4_verify(rqstp, cstate, verify); |
| 975 | return status == nfserr_not_same ? nfs_ok : status; |
| 976 | } |
| 977 | |
| 978 | static __be32 |
| 979 | nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 980 | struct nfsd4_verify *verify) |
| 981 | { |
| 982 | __be32 status; |
| 983 | |
| 984 | status = _nfsd4_verify(rqstp, cstate, verify); |
| 985 | return status == nfserr_same ? nfs_ok : status; |
| 986 | } |
| 987 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 988 | /* |
| 989 | * NULL call. |
| 990 | */ |
Al Viro | 7111c66 | 2006-10-19 23:28:45 -0700 | [diff] [blame] | 991 | static __be32 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 992 | nfsd4_proc_null(struct svc_rqst *rqstp, void *argp, void *resp) |
| 993 | { |
| 994 | return nfs_ok; |
| 995 | } |
| 996 | |
Shankar Anand | e2b2095 | 2006-07-10 04:45:44 -0700 | [diff] [blame] | 997 | static inline void nfsd4_increment_op_stats(u32 opnum) |
| 998 | { |
| 999 | if (opnum >= FIRST_NFS4_OP && opnum <= LAST_NFS4_OP) |
| 1000 | nfsdstats.nfs4_opcount[opnum]++; |
| 1001 | } |
| 1002 | |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1003 | typedef __be32(*nfsd4op_func)(struct svc_rqst *, struct nfsd4_compound_state *, |
| 1004 | void *); |
Andy Adamson | f9bb94c | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1005 | enum nfsd4_op_flags { |
| 1006 | ALLOWED_WITHOUT_FH = 1 << 0, /* No current filehandle required */ |
Mi Jinlong | 5ece3ca | 2011-02-18 09:08:31 +0800 | [diff] [blame] | 1007 | ALLOWED_ON_ABSENT_FS = 1 << 1, /* ops processed on absent fs */ |
| 1008 | ALLOWED_AS_FIRST_OP = 1 << 2, /* ops reqired first in compound */ |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1009 | /* For rfc 5661 section 2.6.3.1.1: */ |
| 1010 | OP_HANDLES_WRONGSEC = 1 << 3, |
| 1011 | OP_IS_PUTFH_LIKE = 1 << 4, |
Andy Adamson | f9bb94c | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1012 | }; |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1013 | |
| 1014 | struct nfsd4_operation { |
| 1015 | nfsd4op_func op_func; |
| 1016 | u32 op_flags; |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1017 | char *op_name; |
J. Bruce Fields | 1091006 | 2011-01-24 12:11:02 -0500 | [diff] [blame] | 1018 | /* |
| 1019 | * We use the DRC for compounds containing non-idempotent |
| 1020 | * operations, *except* those that are 4.1-specific (since |
| 1021 | * sessions provide their own EOS), and except for stateful |
| 1022 | * operations other than setclientid and setclientid_confirm |
| 1023 | * (since sequence numbers provide EOS for open, lock, etc in |
| 1024 | * the v4.0 case). |
| 1025 | */ |
| 1026 | bool op_cacheresult; |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1027 | }; |
| 1028 | |
| 1029 | static struct nfsd4_operation nfsd4_ops[]; |
| 1030 | |
Adrian Bunk | f1c7f79 | 2008-08-08 19:26:42 +0300 | [diff] [blame] | 1031 | static const char *nfsd4_op_name(unsigned opnum); |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1032 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1033 | /* |
J. Bruce Fields | 5771635 | 2010-04-21 12:27:19 -0400 | [diff] [blame] | 1034 | * Enforce NFSv4.1 COMPOUND ordering rules: |
Andy Adamson | f9bb94c | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1035 | * |
J. Bruce Fields | 5771635 | 2010-04-21 12:27:19 -0400 | [diff] [blame] | 1036 | * Also note, enforced elsewhere: |
| 1037 | * - SEQUENCE other than as first op results in |
| 1038 | * NFS4ERR_SEQUENCE_POS. (Enforced in nfsd4_sequence().) |
J. Bruce Fields | 1d1bc8f | 2010-10-04 23:12:59 -0400 | [diff] [blame] | 1039 | * - BIND_CONN_TO_SESSION must be the only op in its compound. |
| 1040 | * (Enforced in nfsd4_bind_conn_to_session().) |
J. Bruce Fields | 5771635 | 2010-04-21 12:27:19 -0400 | [diff] [blame] | 1041 | * - DESTROY_SESSION must be the final operation in a compound, if |
| 1042 | * sessionid's in SEQUENCE and DESTROY_SESSION are the same. |
| 1043 | * (Enforced in nfsd4_destroy_session().) |
Andy Adamson | f9bb94c | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1044 | */ |
J. Bruce Fields | 5771635 | 2010-04-21 12:27:19 -0400 | [diff] [blame] | 1045 | static __be32 nfs41_check_op_ordering(struct nfsd4_compoundargs *args) |
Andy Adamson | f9bb94c | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1046 | { |
J. Bruce Fields | 5771635 | 2010-04-21 12:27:19 -0400 | [diff] [blame] | 1047 | struct nfsd4_op *op = &args->ops[0]; |
| 1048 | |
| 1049 | /* These ordering requirements don't apply to NFSv4.0: */ |
| 1050 | if (args->minorversion == 0) |
| 1051 | return nfs_ok; |
| 1052 | /* This is weird, but OK, not our problem: */ |
| 1053 | if (args->opcnt == 0) |
| 1054 | return nfs_ok; |
| 1055 | if (op->status == nfserr_op_illegal) |
| 1056 | return nfs_ok; |
| 1057 | if (!(nfsd4_ops[op->opnum].op_flags & ALLOWED_AS_FIRST_OP)) |
| 1058 | return nfserr_op_not_in_session; |
| 1059 | if (op->opnum == OP_SEQUENCE) |
| 1060 | return nfs_ok; |
| 1061 | if (args->opcnt != 1) |
| 1062 | return nfserr_not_only_op; |
| 1063 | return nfs_ok; |
Andy Adamson | f9bb94c | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1064 | } |
| 1065 | |
J. Bruce Fields | 22b0321 | 2011-04-09 11:23:24 -0400 | [diff] [blame] | 1066 | static inline struct nfsd4_operation *OPDESC(struct nfsd4_op *op) |
| 1067 | { |
| 1068 | return &nfsd4_ops[op->opnum]; |
| 1069 | } |
| 1070 | |
J. Bruce Fields | 1091006 | 2011-01-24 12:11:02 -0500 | [diff] [blame] | 1071 | bool nfsd4_cache_this_op(struct nfsd4_op *op) |
| 1072 | { |
| 1073 | return OPDESC(op)->op_cacheresult; |
| 1074 | } |
| 1075 | |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1076 | static bool need_wrongsec_check(struct svc_rqst *rqstp) |
| 1077 | { |
| 1078 | struct nfsd4_compoundres *resp = rqstp->rq_resp; |
| 1079 | struct nfsd4_compoundargs *argp = rqstp->rq_argp; |
| 1080 | struct nfsd4_op *this = &argp->ops[resp->opcnt - 1]; |
| 1081 | struct nfsd4_op *next = &argp->ops[resp->opcnt]; |
| 1082 | struct nfsd4_operation *thisd; |
| 1083 | struct nfsd4_operation *nextd; |
| 1084 | |
| 1085 | thisd = OPDESC(this); |
| 1086 | /* |
| 1087 | * Most ops check wronsec on our own; only the putfh-like ops |
| 1088 | * have special rules. |
| 1089 | */ |
| 1090 | if (!(thisd->op_flags & OP_IS_PUTFH_LIKE)) |
| 1091 | return false; |
| 1092 | /* |
| 1093 | * rfc 5661 2.6.3.1.1.6: don't bother erroring out a |
| 1094 | * put-filehandle operation if we're not going to use the |
| 1095 | * result: |
| 1096 | */ |
| 1097 | if (argp->opcnt == resp->opcnt) |
| 1098 | return false; |
| 1099 | |
| 1100 | nextd = OPDESC(next); |
| 1101 | /* |
| 1102 | * Rest of 2.6.3.1.1: certain operations will return WRONGSEC |
| 1103 | * errors themselves as necessary; others should check for them |
| 1104 | * now: |
| 1105 | */ |
| 1106 | return !(nextd->op_flags & OP_HANDLES_WRONGSEC); |
| 1107 | } |
| 1108 | |
Andy Adamson | f9bb94c | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1109 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1110 | * COMPOUND call. |
| 1111 | */ |
Al Viro | 7111c66 | 2006-10-19 23:28:45 -0700 | [diff] [blame] | 1112 | static __be32 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1113 | nfsd4_proc_compound(struct svc_rqst *rqstp, |
| 1114 | struct nfsd4_compoundargs *args, |
| 1115 | struct nfsd4_compoundres *resp) |
| 1116 | { |
| 1117 | struct nfsd4_op *op; |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1118 | struct nfsd4_operation *opdesc; |
Andy Adamson | e354d57 | 2009-03-28 11:30:52 +0300 | [diff] [blame] | 1119 | struct nfsd4_compound_state *cstate = &resp->cstate; |
J.Bruce Fields | e571019 | 2006-12-13 00:35:20 -0800 | [diff] [blame] | 1120 | int slack_bytes; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 1121 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1122 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1123 | resp->xbuf = &rqstp->rq_res; |
Andy Adamson | e354d57 | 2009-03-28 11:30:52 +0300 | [diff] [blame] | 1124 | resp->p = rqstp->rq_res.head[0].iov_base + |
| 1125 | rqstp->rq_res.head[0].iov_len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1126 | resp->tagp = resp->p; |
| 1127 | /* reserve space for: taglen, tag, and opcnt */ |
| 1128 | resp->p += 2 + XDR_QUADLEN(args->taglen); |
| 1129 | resp->end = rqstp->rq_res.head[0].iov_base + PAGE_SIZE; |
| 1130 | resp->taglen = args->taglen; |
| 1131 | resp->tag = args->tag; |
| 1132 | resp->opcnt = 0; |
| 1133 | resp->rqstp = rqstp; |
Andy Adamson | d87a8ad | 2009-04-03 08:28:53 +0300 | [diff] [blame] | 1134 | resp->cstate.minorversion = args->minorversion; |
Andy Adamson | e354d57 | 2009-03-28 11:30:52 +0300 | [diff] [blame] | 1135 | resp->cstate.replay_owner = NULL; |
J. Bruce Fields | 26c0c75 | 2010-04-24 15:35:43 -0400 | [diff] [blame] | 1136 | resp->cstate.session = NULL; |
Andy Adamson | e354d57 | 2009-03-28 11:30:52 +0300 | [diff] [blame] | 1137 | fh_init(&resp->cstate.current_fh, NFS4_FHSIZE); |
| 1138 | fh_init(&resp->cstate.save_fh, NFS4_FHSIZE); |
NeilBrown | 8ff30fa | 2010-08-12 17:04:07 +1000 | [diff] [blame] | 1139 | /* |
| 1140 | * Don't use the deferral mechanism for NFSv4; compounds make it |
| 1141 | * too hard to avoid non-idempotency problems. |
| 1142 | */ |
| 1143 | rqstp->rq_usedeferral = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1144 | |
| 1145 | /* |
| 1146 | * According to RFC3010, this takes precedence over all other errors. |
| 1147 | */ |
| 1148 | status = nfserr_minor_vers_mismatch; |
Benny Halevy | 8daf220 | 2009-04-03 08:28:59 +0300 | [diff] [blame] | 1149 | if (args->minorversion > nfsd_supported_minorversion) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1150 | goto out; |
| 1151 | |
J. Bruce Fields | 5771635 | 2010-04-21 12:27:19 -0400 | [diff] [blame] | 1152 | status = nfs41_check_op_ordering(args); |
| 1153 | if (status) { |
Andy Adamson | f9bb94c | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1154 | op = &args->ops[0]; |
J. Bruce Fields | 5771635 | 2010-04-21 12:27:19 -0400 | [diff] [blame] | 1155 | op->status = status; |
Andy Adamson | f9bb94c | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1156 | goto encode_op; |
| 1157 | } |
| 1158 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1159 | while (!status && resp->opcnt < args->opcnt) { |
| 1160 | op = &args->ops[resp->opcnt++]; |
| 1161 | |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1162 | dprintk("nfsv4 compound op #%d/%d: %d (%s)\n", |
| 1163 | resp->opcnt, args->opcnt, op->opnum, |
| 1164 | nfsd4_op_name(op->opnum)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1165 | /* |
| 1166 | * The XDR decode routines may have pre-set op->status; |
| 1167 | * for example, if there is a miscellaneous XDR error |
| 1168 | * it will be set to nfserr_bad_xdr. |
| 1169 | */ |
| 1170 | if (op->status) |
| 1171 | goto encode_op; |
| 1172 | |
| 1173 | /* We must be able to encode a successful response to |
| 1174 | * this operation, with enough room left over to encode a |
| 1175 | * failed response to the next operation. If we don't |
| 1176 | * have enough room, fail with ERR_RESOURCE. |
| 1177 | */ |
J.Bruce Fields | e571019 | 2006-12-13 00:35:20 -0800 | [diff] [blame] | 1178 | slack_bytes = (char *)resp->end - (char *)resp->p; |
| 1179 | if (slack_bytes < COMPOUND_SLACK_SPACE |
| 1180 | + COMPOUND_ERR_SLACK_SPACE) { |
| 1181 | BUG_ON(slack_bytes < COMPOUND_ERR_SLACK_SPACE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1182 | op->status = nfserr_resource; |
| 1183 | goto encode_op; |
| 1184 | } |
| 1185 | |
J. Bruce Fields | 22b0321 | 2011-04-09 11:23:24 -0400 | [diff] [blame] | 1186 | opdesc = OPDESC(op); |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1187 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 1188 | if (!cstate->current_fh.fh_dentry) { |
J.Bruce Fields | 27d630e | 2006-12-13 00:35:43 -0800 | [diff] [blame] | 1189 | if (!(opdesc->op_flags & ALLOWED_WITHOUT_FH)) { |
J.Bruce Fields | 42ca099 | 2006-10-04 02:16:20 -0700 | [diff] [blame] | 1190 | op->status = nfserr_nofilehandle; |
| 1191 | goto encode_op; |
| 1192 | } |
J.Bruce Fields | eeac294 | 2006-12-13 00:35:39 -0800 | [diff] [blame] | 1193 | } else if (cstate->current_fh.fh_export->ex_fslocs.migrated && |
| 1194 | !(opdesc->op_flags & ALLOWED_ON_ABSENT_FS)) { |
J.Bruce Fields | 42ca099 | 2006-10-04 02:16:20 -0700 | [diff] [blame] | 1195 | op->status = nfserr_moved; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1196 | goto encode_op; |
| 1197 | } |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1198 | |
| 1199 | if (opdesc->op_func) |
| 1200 | op->status = opdesc->op_func(rqstp, cstate, &op->u); |
| 1201 | else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1202 | BUG_ON(op->status == nfs_ok); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1203 | |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1204 | if (!op->status && need_wrongsec_check(rqstp)) |
| 1205 | op->status = check_nfsd_access(cstate->current_fh.fh_export, rqstp); |
| 1206 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1207 | encode_op: |
Andy Adamson | 49557cc | 2009-07-23 19:02:16 -0400 | [diff] [blame] | 1208 | /* Only from SEQUENCE */ |
Andy Adamson | da3846a | 2009-04-03 08:28:22 +0300 | [diff] [blame] | 1209 | if (resp->cstate.status == nfserr_replay_cache) { |
| 1210 | dprintk("%s NFS4.1 replay from cache\n", __func__); |
Andy Adamson | abfabf8 | 2009-07-23 19:02:18 -0400 | [diff] [blame] | 1211 | status = op->status; |
Andy Adamson | da3846a | 2009-04-03 08:28:22 +0300 | [diff] [blame] | 1212 | goto out; |
| 1213 | } |
Al Viro | a90b061 | 2006-10-19 23:29:03 -0700 | [diff] [blame] | 1214 | if (op->status == nfserr_replay_me) { |
J.Bruce Fields | a4f1706a9 | 2006-12-13 00:35:28 -0800 | [diff] [blame] | 1215 | op->replay = &cstate->replay_owner->so_replay; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1216 | nfsd4_encode_replay(resp, op); |
| 1217 | status = op->status = op->replay->rp_status; |
| 1218 | } else { |
| 1219 | nfsd4_encode_operation(resp, op); |
| 1220 | status = op->status; |
| 1221 | } |
Benny Halevy | 0407717 | 2008-12-15 19:40:49 +0200 | [diff] [blame] | 1222 | |
| 1223 | dprintk("nfsv4 compound op %p opcnt %d #%d: %d: status %d\n", |
| 1224 | args->ops, args->opcnt, resp->opcnt, op->opnum, |
| 1225 | be32_to_cpu(status)); |
| 1226 | |
J.Bruce Fields | a4f1706a9 | 2006-12-13 00:35:28 -0800 | [diff] [blame] | 1227 | if (cstate->replay_owner) { |
| 1228 | nfs4_put_stateowner(cstate->replay_owner); |
| 1229 | cstate->replay_owner = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1230 | } |
NeilBrown | 7e06b7f | 2005-06-23 22:03:13 -0700 | [diff] [blame] | 1231 | /* XXX Ugh, we need to get rid of this kind of special case: */ |
| 1232 | if (op->opnum == OP_READ && op->u.read.rd_filp) |
| 1233 | fput(op->u.read.rd_filp); |
Shankar Anand | e2b2095 | 2006-07-10 04:45:44 -0700 | [diff] [blame] | 1234 | |
| 1235 | nfsd4_increment_op_stats(op->opnum); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1236 | } |
| 1237 | |
Andy Adamson | da3846a | 2009-04-03 08:28:22 +0300 | [diff] [blame] | 1238 | resp->cstate.status = status; |
Andy Adamson | e354d57 | 2009-03-28 11:30:52 +0300 | [diff] [blame] | 1239 | fh_put(&resp->cstate.current_fh); |
| 1240 | fh_put(&resp->cstate.save_fh); |
| 1241 | BUG_ON(resp->cstate.replay_owner); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1242 | out: |
Andy Adamson | 2f42587 | 2009-04-03 08:27:32 +0300 | [diff] [blame] | 1243 | /* Reset deferral mechanism for RPC deferrals */ |
| 1244 | rqstp->rq_usedeferral = 1; |
J. Bruce Fields | 3b12cd9 | 2008-05-05 17:17:44 -0400 | [diff] [blame] | 1245 | dprintk("nfsv4 compound returned %d\n", ntohl(status)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1246 | return status; |
| 1247 | } |
| 1248 | |
Benny Halevy | 2076601 | 2009-03-28 11:32:05 +0300 | [diff] [blame] | 1249 | static struct nfsd4_operation nfsd4_ops[] = { |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1250 | [OP_ACCESS] = { |
| 1251 | .op_func = (nfsd4op_func)nfsd4_access, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1252 | .op_name = "OP_ACCESS", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1253 | }, |
| 1254 | [OP_CLOSE] = { |
| 1255 | .op_func = (nfsd4op_func)nfsd4_close, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1256 | .op_name = "OP_CLOSE", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1257 | }, |
| 1258 | [OP_COMMIT] = { |
| 1259 | .op_func = (nfsd4op_func)nfsd4_commit, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1260 | .op_name = "OP_COMMIT", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1261 | }, |
| 1262 | [OP_CREATE] = { |
| 1263 | .op_func = (nfsd4op_func)nfsd4_create, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1264 | .op_name = "OP_CREATE", |
J. Bruce Fields | 1091006 | 2011-01-24 12:11:02 -0500 | [diff] [blame] | 1265 | .op_cacheresult = true, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1266 | }, |
| 1267 | [OP_DELEGRETURN] = { |
| 1268 | .op_func = (nfsd4op_func)nfsd4_delegreturn, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1269 | .op_name = "OP_DELEGRETURN", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1270 | }, |
| 1271 | [OP_GETATTR] = { |
| 1272 | .op_func = (nfsd4op_func)nfsd4_getattr, |
J.Bruce Fields | eeac294 | 2006-12-13 00:35:39 -0800 | [diff] [blame] | 1273 | .op_flags = ALLOWED_ON_ABSENT_FS, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1274 | .op_name = "OP_GETATTR", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1275 | }, |
| 1276 | [OP_GETFH] = { |
| 1277 | .op_func = (nfsd4op_func)nfsd4_getfh, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1278 | .op_name = "OP_GETFH", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1279 | }, |
| 1280 | [OP_LINK] = { |
| 1281 | .op_func = (nfsd4op_func)nfsd4_link, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1282 | .op_name = "OP_LINK", |
J. Bruce Fields | 1091006 | 2011-01-24 12:11:02 -0500 | [diff] [blame] | 1283 | .op_cacheresult = true, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1284 | }, |
| 1285 | [OP_LOCK] = { |
| 1286 | .op_func = (nfsd4op_func)nfsd4_lock, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1287 | .op_name = "OP_LOCK", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1288 | }, |
| 1289 | [OP_LOCKT] = { |
| 1290 | .op_func = (nfsd4op_func)nfsd4_lockt, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1291 | .op_name = "OP_LOCKT", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1292 | }, |
| 1293 | [OP_LOCKU] = { |
| 1294 | .op_func = (nfsd4op_func)nfsd4_locku, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1295 | .op_name = "OP_LOCKU", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1296 | }, |
| 1297 | [OP_LOOKUP] = { |
| 1298 | .op_func = (nfsd4op_func)nfsd4_lookup, |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1299 | .op_flags = OP_HANDLES_WRONGSEC, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1300 | .op_name = "OP_LOOKUP", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1301 | }, |
| 1302 | [OP_LOOKUPP] = { |
| 1303 | .op_func = (nfsd4op_func)nfsd4_lookupp, |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1304 | .op_flags = OP_HANDLES_WRONGSEC, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1305 | .op_name = "OP_LOOKUPP", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1306 | }, |
| 1307 | [OP_NVERIFY] = { |
| 1308 | .op_func = (nfsd4op_func)nfsd4_nverify, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1309 | .op_name = "OP_NVERIFY", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1310 | }, |
| 1311 | [OP_OPEN] = { |
| 1312 | .op_func = (nfsd4op_func)nfsd4_open, |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1313 | .op_flags = OP_HANDLES_WRONGSEC, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1314 | .op_name = "OP_OPEN", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1315 | }, |
| 1316 | [OP_OPEN_CONFIRM] = { |
| 1317 | .op_func = (nfsd4op_func)nfsd4_open_confirm, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1318 | .op_name = "OP_OPEN_CONFIRM", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1319 | }, |
| 1320 | [OP_OPEN_DOWNGRADE] = { |
| 1321 | .op_func = (nfsd4op_func)nfsd4_open_downgrade, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1322 | .op_name = "OP_OPEN_DOWNGRADE", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1323 | }, |
| 1324 | [OP_PUTFH] = { |
| 1325 | .op_func = (nfsd4op_func)nfsd4_putfh, |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1326 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
| 1327 | | OP_IS_PUTFH_LIKE, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1328 | .op_name = "OP_PUTFH", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1329 | }, |
J.Bruce Fields | eeac294 | 2006-12-13 00:35:39 -0800 | [diff] [blame] | 1330 | [OP_PUTPUBFH] = { |
J. Bruce Fields | a1c8c4d | 2009-03-09 12:17:29 -0400 | [diff] [blame] | 1331 | .op_func = (nfsd4op_func)nfsd4_putrootfh, |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1332 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
| 1333 | | OP_IS_PUTFH_LIKE, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1334 | .op_name = "OP_PUTPUBFH", |
J.Bruce Fields | eeac294 | 2006-12-13 00:35:39 -0800 | [diff] [blame] | 1335 | }, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1336 | [OP_PUTROOTFH] = { |
| 1337 | .op_func = (nfsd4op_func)nfsd4_putrootfh, |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1338 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
| 1339 | | OP_IS_PUTFH_LIKE, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1340 | .op_name = "OP_PUTROOTFH", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1341 | }, |
| 1342 | [OP_READ] = { |
| 1343 | .op_func = (nfsd4op_func)nfsd4_read, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1344 | .op_name = "OP_READ", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1345 | }, |
| 1346 | [OP_READDIR] = { |
| 1347 | .op_func = (nfsd4op_func)nfsd4_readdir, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1348 | .op_name = "OP_READDIR", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1349 | }, |
| 1350 | [OP_READLINK] = { |
| 1351 | .op_func = (nfsd4op_func)nfsd4_readlink, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1352 | .op_name = "OP_READLINK", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1353 | }, |
| 1354 | [OP_REMOVE] = { |
| 1355 | .op_func = (nfsd4op_func)nfsd4_remove, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1356 | .op_name = "OP_REMOVE", |
J. Bruce Fields | 1091006 | 2011-01-24 12:11:02 -0500 | [diff] [blame] | 1357 | .op_cacheresult = true, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1358 | }, |
| 1359 | [OP_RENAME] = { |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1360 | .op_name = "OP_RENAME", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1361 | .op_func = (nfsd4op_func)nfsd4_rename, |
J. Bruce Fields | 1091006 | 2011-01-24 12:11:02 -0500 | [diff] [blame] | 1362 | .op_cacheresult = true, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1363 | }, |
| 1364 | [OP_RENEW] = { |
| 1365 | .op_func = (nfsd4op_func)nfsd4_renew, |
J.Bruce Fields | 27d630e | 2006-12-13 00:35:43 -0800 | [diff] [blame] | 1366 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1367 | .op_name = "OP_RENEW", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1368 | }, |
| 1369 | [OP_RESTOREFH] = { |
| 1370 | .op_func = (nfsd4op_func)nfsd4_restorefh, |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1371 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
| 1372 | | OP_IS_PUTFH_LIKE, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1373 | .op_name = "OP_RESTOREFH", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1374 | }, |
| 1375 | [OP_SAVEFH] = { |
| 1376 | .op_func = (nfsd4op_func)nfsd4_savefh, |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1377 | .op_flags = OP_HANDLES_WRONGSEC, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1378 | .op_name = "OP_SAVEFH", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1379 | }, |
Andy Adamson | dcb488a3 | 2007-07-17 04:04:51 -0700 | [diff] [blame] | 1380 | [OP_SECINFO] = { |
| 1381 | .op_func = (nfsd4op_func)nfsd4_secinfo, |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1382 | .op_flags = OP_HANDLES_WRONGSEC, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1383 | .op_name = "OP_SECINFO", |
Andy Adamson | dcb488a3 | 2007-07-17 04:04:51 -0700 | [diff] [blame] | 1384 | }, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1385 | [OP_SETATTR] = { |
| 1386 | .op_func = (nfsd4op_func)nfsd4_setattr, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1387 | .op_name = "OP_SETATTR", |
J. Bruce Fields | 1091006 | 2011-01-24 12:11:02 -0500 | [diff] [blame] | 1388 | .op_cacheresult = true, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1389 | }, |
| 1390 | [OP_SETCLIENTID] = { |
| 1391 | .op_func = (nfsd4op_func)nfsd4_setclientid, |
J.Bruce Fields | 27d630e | 2006-12-13 00:35:43 -0800 | [diff] [blame] | 1392 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1393 | .op_name = "OP_SETCLIENTID", |
J. Bruce Fields | 1091006 | 2011-01-24 12:11:02 -0500 | [diff] [blame] | 1394 | .op_cacheresult = true, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1395 | }, |
| 1396 | [OP_SETCLIENTID_CONFIRM] = { |
| 1397 | .op_func = (nfsd4op_func)nfsd4_setclientid_confirm, |
J.Bruce Fields | 27d630e | 2006-12-13 00:35:43 -0800 | [diff] [blame] | 1398 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1399 | .op_name = "OP_SETCLIENTID_CONFIRM", |
J. Bruce Fields | 1091006 | 2011-01-24 12:11:02 -0500 | [diff] [blame] | 1400 | .op_cacheresult = true, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1401 | }, |
| 1402 | [OP_VERIFY] = { |
| 1403 | .op_func = (nfsd4op_func)nfsd4_verify, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1404 | .op_name = "OP_VERIFY", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1405 | }, |
| 1406 | [OP_WRITE] = { |
| 1407 | .op_func = (nfsd4op_func)nfsd4_write, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1408 | .op_name = "OP_WRITE", |
J. Bruce Fields | 1091006 | 2011-01-24 12:11:02 -0500 | [diff] [blame] | 1409 | .op_cacheresult = true, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1410 | }, |
| 1411 | [OP_RELEASE_LOCKOWNER] = { |
| 1412 | .op_func = (nfsd4op_func)nfsd4_release_lockowner, |
J.Bruce Fields | 27d630e | 2006-12-13 00:35:43 -0800 | [diff] [blame] | 1413 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1414 | .op_name = "OP_RELEASE_LOCKOWNER", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1415 | }, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 1416 | |
| 1417 | /* NFSv4.1 operations */ |
| 1418 | [OP_EXCHANGE_ID] = { |
| 1419 | .op_func = (nfsd4op_func)nfsd4_exchange_id, |
Andy Adamson | f9bb94c | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1420 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 1421 | .op_name = "OP_EXCHANGE_ID", |
| 1422 | }, |
J. Bruce Fields | 1d1bc8f | 2010-10-04 23:12:59 -0400 | [diff] [blame] | 1423 | [OP_BIND_CONN_TO_SESSION] = { |
| 1424 | .op_func = (nfsd4op_func)nfsd4_bind_conn_to_session, |
| 1425 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP, |
| 1426 | .op_name = "OP_BIND_CONN_TO_SESSION", |
| 1427 | }, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 1428 | [OP_CREATE_SESSION] = { |
| 1429 | .op_func = (nfsd4op_func)nfsd4_create_session, |
Andy Adamson | f9bb94c | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1430 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 1431 | .op_name = "OP_CREATE_SESSION", |
| 1432 | }, |
| 1433 | [OP_DESTROY_SESSION] = { |
| 1434 | .op_func = (nfsd4op_func)nfsd4_destroy_session, |
Andy Adamson | f9bb94c | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1435 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 1436 | .op_name = "OP_DESTROY_SESSION", |
| 1437 | }, |
| 1438 | [OP_SEQUENCE] = { |
| 1439 | .op_func = (nfsd4op_func)nfsd4_sequence, |
Andy Adamson | f9bb94c | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1440 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 1441 | .op_name = "OP_SEQUENCE", |
| 1442 | }, |
Benny Halevy | 094b5d7 | 2011-06-16 11:39:10 -0400 | [diff] [blame] | 1443 | [OP_DESTROY_CLIENTID] = { |
| 1444 | .op_func = NULL, |
| 1445 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP, |
| 1446 | .op_name = "OP_DESTROY_CLIENTID", |
| 1447 | }, |
J. Bruce Fields | 4dc6ec0 | 2010-04-19 15:11:28 -0400 | [diff] [blame] | 1448 | [OP_RECLAIM_COMPLETE] = { |
| 1449 | .op_func = (nfsd4op_func)nfsd4_reclaim_complete, |
| 1450 | .op_flags = ALLOWED_WITHOUT_FH, |
| 1451 | .op_name = "OP_RECLAIM_COMPLETE", |
| 1452 | }, |
J. Bruce Fields | 04f4ad1 | 2010-12-16 09:51:13 -0500 | [diff] [blame] | 1453 | [OP_SECINFO_NO_NAME] = { |
| 1454 | .op_func = (nfsd4op_func)nfsd4_secinfo_no_name, |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1455 | .op_flags = OP_HANDLES_WRONGSEC, |
J. Bruce Fields | 04f4ad1 | 2010-12-16 09:51:13 -0500 | [diff] [blame] | 1456 | .op_name = "OP_SECINFO_NO_NAME", |
| 1457 | }, |
Bryan Schumaker | 1745680 | 2011-07-13 10:50:48 -0400 | [diff] [blame] | 1458 | [OP_TEST_STATEID] = { |
| 1459 | .op_func = (nfsd4op_func)nfsd4_test_stateid, |
| 1460 | .op_flags = ALLOWED_WITHOUT_FH, |
| 1461 | .op_name = "OP_TEST_STATEID", |
| 1462 | }, |
Bryan Schumaker | e1ca12d | 2011-07-13 11:04:21 -0400 | [diff] [blame] | 1463 | [OP_FREE_STATEID] = { |
| 1464 | .op_func = (nfsd4op_func)nfsd4_free_stateid, |
| 1465 | .op_flags = ALLOWED_WITHOUT_FH, |
| 1466 | .op_name = "OP_FREE_STATEID", |
| 1467 | }, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1468 | }; |
| 1469 | |
Adrian Bunk | f1c7f79 | 2008-08-08 19:26:42 +0300 | [diff] [blame] | 1470 | static const char *nfsd4_op_name(unsigned opnum) |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1471 | { |
| 1472 | if (opnum < ARRAY_SIZE(nfsd4_ops)) |
| 1473 | return nfsd4_ops[opnum].op_name; |
| 1474 | return "unknown_operation"; |
| 1475 | } |
| 1476 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1477 | #define nfsd4_voidres nfsd4_voidargs |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1478 | struct nfsd4_voidargs { int dummy; }; |
| 1479 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1480 | static struct svc_procedure nfsd_procedures4[2] = { |
Yu Zhiguo | 0a93a47 | 2009-05-19 14:09:54 +0800 | [diff] [blame] | 1481 | [NFSPROC4_NULL] = { |
| 1482 | .pc_func = (svc_procfunc) nfsd4_proc_null, |
| 1483 | .pc_encode = (kxdrproc_t) nfs4svc_encode_voidres, |
| 1484 | .pc_argsize = sizeof(struct nfsd4_voidargs), |
| 1485 | .pc_ressize = sizeof(struct nfsd4_voidres), |
| 1486 | .pc_cachetype = RC_NOCACHE, |
| 1487 | .pc_xdrressize = 1, |
| 1488 | }, |
| 1489 | [NFSPROC4_COMPOUND] = { |
| 1490 | .pc_func = (svc_procfunc) nfsd4_proc_compound, |
| 1491 | .pc_decode = (kxdrproc_t) nfs4svc_decode_compoundargs, |
| 1492 | .pc_encode = (kxdrproc_t) nfs4svc_encode_compoundres, |
| 1493 | .pc_argsize = sizeof(struct nfsd4_compoundargs), |
| 1494 | .pc_ressize = sizeof(struct nfsd4_compoundres), |
J. Bruce Fields | 3e98abf | 2011-07-16 17:15:10 -0400 | [diff] [blame] | 1495 | .pc_release = nfsd4_release_compoundargs, |
Yu Zhiguo | 0a93a47 | 2009-05-19 14:09:54 +0800 | [diff] [blame] | 1496 | .pc_cachetype = RC_NOCACHE, |
| 1497 | .pc_xdrressize = NFSD_BUFSIZE/4, |
| 1498 | }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1499 | }; |
| 1500 | |
| 1501 | struct svc_version nfsd_version4 = { |
| 1502 | .vs_vers = 4, |
| 1503 | .vs_nproc = 2, |
| 1504 | .vs_proc = nfsd_procedures4, |
| 1505 | .vs_dispatch = nfsd_dispatch, |
| 1506 | .vs_xdrsize = NFS4_SVC_XDRSIZE, |
| 1507 | }; |
| 1508 | |
| 1509 | /* |
| 1510 | * Local variables: |
| 1511 | * c-basic-offset: 8 |
| 1512 | * End: |
| 1513 | */ |