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> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 36 | |
Boaz Harrosh | 9a74af2 | 2009-12-03 20:30:56 +0200 | [diff] [blame] | 37 | #include "cache.h" |
| 38 | #include "xdr4.h" |
J. Bruce Fields | 0a3adad | 2009-11-04 18:12:35 -0500 | [diff] [blame] | 39 | #include "vfs.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 40 | |
| 41 | #define NFSDDBG_FACILITY NFSDDBG_PROC |
| 42 | |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 43 | static u32 nfsd_attrmask[] = { |
| 44 | NFSD_WRITEABLE_ATTRS_WORD0, |
| 45 | NFSD_WRITEABLE_ATTRS_WORD1, |
| 46 | NFSD_WRITEABLE_ATTRS_WORD2 |
| 47 | }; |
| 48 | |
| 49 | static u32 nfsd41_ex_attrmask[] = { |
| 50 | NFSD_SUPPATTR_EXCLCREAT_WORD0, |
| 51 | NFSD_SUPPATTR_EXCLCREAT_WORD1, |
| 52 | NFSD_SUPPATTR_EXCLCREAT_WORD2 |
| 53 | }; |
| 54 | |
| 55 | static __be32 |
| 56 | check_attr_support(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 57 | u32 *bmval, u32 *writable) |
| 58 | { |
| 59 | struct dentry *dentry = cstate->current_fh.fh_dentry; |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 60 | |
| 61 | /* |
| 62 | * Check about attributes are supported by the NFSv4 server or not. |
| 63 | * According to spec, unsupported attributes return ERR_ATTRNOTSUPP. |
| 64 | */ |
| 65 | if ((bmval[0] & ~nfsd_suppattrs0(cstate->minorversion)) || |
| 66 | (bmval[1] & ~nfsd_suppattrs1(cstate->minorversion)) || |
| 67 | (bmval[2] & ~nfsd_suppattrs2(cstate->minorversion))) |
| 68 | return nfserr_attrnotsupp; |
| 69 | |
| 70 | /* |
Trond Myklebust | a06b126 | 2009-08-31 15:16:11 -0400 | [diff] [blame] | 71 | * Check FATTR4_WORD0_ACL can be supported |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 72 | * in current environment or not. |
| 73 | */ |
| 74 | if (bmval[0] & FATTR4_WORD0_ACL) { |
| 75 | if (!IS_POSIXACL(dentry->d_inode)) |
| 76 | return nfserr_attrnotsupp; |
| 77 | } |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 78 | |
| 79 | /* |
| 80 | * According to spec, read-only attributes return ERR_INVAL. |
| 81 | */ |
| 82 | if (writable) { |
| 83 | if ((bmval[0] & ~writable[0]) || (bmval[1] & ~writable[1]) || |
| 84 | (bmval[2] & ~writable[2])) |
| 85 | return nfserr_inval; |
| 86 | } |
| 87 | |
| 88 | return nfs_ok; |
| 89 | } |
| 90 | |
| 91 | static __be32 |
| 92 | nfsd4_check_open_attributes(struct svc_rqst *rqstp, |
| 93 | struct nfsd4_compound_state *cstate, struct nfsd4_open *open) |
| 94 | { |
| 95 | __be32 status = nfs_ok; |
| 96 | |
| 97 | if (open->op_create == NFS4_OPEN_CREATE) { |
| 98 | if (open->op_createmode == NFS4_CREATE_UNCHECKED |
| 99 | || open->op_createmode == NFS4_CREATE_GUARDED) |
| 100 | status = check_attr_support(rqstp, cstate, |
| 101 | open->op_bmval, nfsd_attrmask); |
| 102 | else if (open->op_createmode == NFS4_CREATE_EXCLUSIVE4_1) |
| 103 | status = check_attr_support(rqstp, cstate, |
| 104 | open->op_bmval, nfsd41_ex_attrmask); |
| 105 | } |
| 106 | |
| 107 | return status; |
| 108 | } |
| 109 | |
Yu Zhiguo | 9208faf | 2009-07-06 17:24:16 +0800 | [diff] [blame] | 110 | static int |
| 111 | is_create_with_attrs(struct nfsd4_open *open) |
| 112 | { |
| 113 | return open->op_create == NFS4_OPEN_CREATE |
| 114 | && (open->op_createmode == NFS4_CREATE_UNCHECKED |
| 115 | || open->op_createmode == NFS4_CREATE_GUARDED |
| 116 | || open->op_createmode == NFS4_CREATE_EXCLUSIVE4_1); |
| 117 | } |
| 118 | |
| 119 | /* |
| 120 | * if error occurs when setting the acl, just clear the acl bit |
| 121 | * in the returned attr bitmap. |
| 122 | */ |
| 123 | static void |
| 124 | do_set_nfs4_acl(struct svc_rqst *rqstp, struct svc_fh *fhp, |
| 125 | struct nfs4_acl *acl, u32 *bmval) |
| 126 | { |
| 127 | __be32 status; |
| 128 | |
| 129 | status = nfsd4_set_nfs4_acl(rqstp, fhp, acl); |
| 130 | if (status) |
| 131 | /* |
| 132 | * We should probably fail the whole open at this point, |
| 133 | * but we've already created the file, so it's too late; |
| 134 | * So this seems the least of evils: |
| 135 | */ |
| 136 | bmval[0] &= ~FATTR4_WORD0_ACL; |
| 137 | } |
| 138 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 139 | static inline void |
| 140 | fh_dup2(struct svc_fh *dst, struct svc_fh *src) |
| 141 | { |
| 142 | fh_put(dst); |
| 143 | dget(src->fh_dentry); |
| 144 | if (src->fh_export) |
| 145 | cache_get(&src->fh_export->h); |
| 146 | *dst = *src; |
| 147 | } |
| 148 | |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 149 | static __be32 |
J. Bruce Fields | dc730e1 | 2006-10-17 00:10:13 -0700 | [diff] [blame] | 150 | 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] | 151 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 152 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 153 | |
| 154 | if (open->op_truncate && |
| 155 | !(open->op_share_access & NFS4_SHARE_ACCESS_WRITE)) |
| 156 | return nfserr_inval; |
| 157 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 158 | if (open->op_share_access & NFS4_SHARE_ACCESS_READ) |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 159 | accmode |= NFSD_MAY_READ; |
J. Bruce Fields | 9801d8a | 2006-10-17 00:10:14 -0700 | [diff] [blame] | 160 | if (open->op_share_access & NFS4_SHARE_ACCESS_WRITE) |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 161 | accmode |= (NFSD_MAY_WRITE | NFSD_MAY_TRUNC); |
J. Bruce Fields | 57ecb34 | 2009-12-01 19:42:57 -0500 | [diff] [blame] | 162 | if (open->op_share_deny & NFS4_SHARE_DENY_READ) |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 163 | accmode |= NFSD_MAY_WRITE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 164 | |
| 165 | status = fh_verify(rqstp, current_fh, S_IFREG, accmode); |
| 166 | |
| 167 | return status; |
| 168 | } |
| 169 | |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 170 | static __be32 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 171 | do_open_lookup(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open *open) |
| 172 | { |
| 173 | struct svc_fh resfh; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 174 | __be32 status; |
J. Bruce Fields | 81ac95c | 2006-11-08 17:44:40 -0800 | [diff] [blame] | 175 | int created = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 176 | |
| 177 | fh_init(&resfh, NFS4_FHSIZE); |
| 178 | open->op_truncate = 0; |
| 179 | |
| 180 | if (open->op_create) { |
Benny Halevy | 79fb54a | 2009-04-03 08:29:17 +0300 | [diff] [blame] | 181 | /* FIXME: check session persistence and pnfs flags. |
| 182 | * The nfsv4.1 spec requires the following semantics: |
| 183 | * |
| 184 | * Persistent | pNFS | Server REQUIRED | Client Allowed |
| 185 | * Reply Cache | server | | |
| 186 | * -------------+--------+-----------------+-------------------- |
| 187 | * no | no | EXCLUSIVE4_1 | EXCLUSIVE4_1 |
| 188 | * | | | (SHOULD) |
| 189 | * | | and EXCLUSIVE4 | or EXCLUSIVE4 |
| 190 | * | | | (SHOULD NOT) |
| 191 | * no | yes | EXCLUSIVE4_1 | EXCLUSIVE4_1 |
| 192 | * yes | no | GUARDED4 | GUARDED4 |
| 193 | * yes | yes | GUARDED4 | GUARDED4 |
| 194 | */ |
| 195 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 196 | /* |
| 197 | * Note: create modes (UNCHECKED,GUARDED...) are the same |
| 198 | * in NFSv4 as in v3. |
| 199 | */ |
| 200 | status = nfsd_create_v3(rqstp, current_fh, open->op_fname.data, |
| 201 | open->op_fname.len, &open->op_iattr, |
| 202 | &resfh, open->op_createmode, |
Jeff Layton | 749997e | 2007-07-31 00:37:51 -0700 | [diff] [blame] | 203 | (u32 *)open->op_verf.data, |
| 204 | &open->op_truncate, &created); |
| 205 | |
J. Bruce Fields | 99f8872 | 2009-02-02 15:12:27 -0500 | [diff] [blame] | 206 | /* |
| 207 | * Following rfc 3530 14.2.16, use the returned bitmask |
| 208 | * to indicate which attributes we used to store the |
| 209 | * verifier: |
Jeff Layton | 749997e | 2007-07-31 00:37:51 -0700 | [diff] [blame] | 210 | */ |
| 211 | if (open->op_createmode == NFS4_CREATE_EXCLUSIVE && status == 0) |
J. Bruce Fields | 99f8872 | 2009-02-02 15:12:27 -0500 | [diff] [blame] | 212 | open->op_bmval[1] = (FATTR4_WORD1_TIME_ACCESS | |
Jeff Layton | 749997e | 2007-07-31 00:37:51 -0700 | [diff] [blame] | 213 | FATTR4_WORD1_TIME_MODIFY); |
J. Bruce Fields | af85852 | 2006-11-08 17:44:39 -0800 | [diff] [blame] | 214 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 215 | status = nfsd_lookup(rqstp, current_fh, |
| 216 | open->op_fname.data, open->op_fname.len, &resfh); |
| 217 | fh_unlock(current_fh); |
| 218 | } |
J. Bruce Fields | af85852 | 2006-11-08 17:44:39 -0800 | [diff] [blame] | 219 | if (status) |
| 220 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 221 | |
Yu Zhiguo | 9208faf | 2009-07-06 17:24:16 +0800 | [diff] [blame] | 222 | if (is_create_with_attrs(open) && open->op_acl != NULL) |
| 223 | do_set_nfs4_acl(rqstp, &resfh, open->op_acl, open->op_bmval); |
| 224 | |
J. Bruce Fields | af85852 | 2006-11-08 17:44:39 -0800 | [diff] [blame] | 225 | set_change_info(&open->op_cinfo, current_fh); |
J. Bruce Fields | 13024b7 | 2009-02-02 17:04:03 -0500 | [diff] [blame] | 226 | fh_dup2(current_fh, &resfh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 227 | |
J. Bruce Fields | af85852 | 2006-11-08 17:44:39 -0800 | [diff] [blame] | 228 | /* set reply cache */ |
J. Bruce Fields | a4773c08 | 2009-02-02 17:23:10 -0500 | [diff] [blame] | 229 | fh_copy_shallow(&open->op_stateowner->so_replay.rp_openfh, |
| 230 | &resfh.fh_handle); |
J. Bruce Fields | 81ac95c | 2006-11-08 17:44:40 -0800 | [diff] [blame] | 231 | if (!created) |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 232 | status = do_open_permission(rqstp, current_fh, open, |
| 233 | NFSD_MAY_NOP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 234 | |
J. Bruce Fields | af85852 | 2006-11-08 17:44:39 -0800 | [diff] [blame] | 235 | out: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 236 | fh_put(&resfh); |
| 237 | return status; |
| 238 | } |
| 239 | |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 240 | static __be32 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 241 | do_open_fhandle(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open *open) |
| 242 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 243 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 244 | |
| 245 | /* Only reclaims from previously confirmed clients are valid */ |
| 246 | if ((status = nfs4_check_open_reclaim(&open->op_clientid))) |
| 247 | return status; |
| 248 | |
| 249 | /* We don't know the target directory, and therefore can not |
| 250 | * set the change info |
| 251 | */ |
| 252 | |
| 253 | memset(&open->op_cinfo, 0, sizeof(struct nfsd4_change_info)); |
| 254 | |
| 255 | /* set replay cache */ |
J. Bruce Fields | a4773c08 | 2009-02-02 17:23:10 -0500 | [diff] [blame] | 256 | fh_copy_shallow(&open->op_stateowner->so_replay.rp_openfh, |
| 257 | ¤t_fh->fh_handle); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 258 | |
| 259 | open->op_truncate = (open->op_iattr.ia_valid & ATTR_SIZE) && |
| 260 | (open->op_iattr.ia_size == 0); |
| 261 | |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 262 | status = do_open_permission(rqstp, current_fh, open, |
| 263 | NFSD_MAY_OWNER_OVERRIDE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 264 | |
| 265 | return status; |
| 266 | } |
| 267 | |
Andy Adamson | 60adfc5 | 2009-04-03 08:28:50 +0300 | [diff] [blame] | 268 | static void |
| 269 | copy_clientid(clientid_t *clid, struct nfsd4_session *session) |
| 270 | { |
| 271 | struct nfsd4_sessionid *sid = |
| 272 | (struct nfsd4_sessionid *)session->se_sessionid.data; |
| 273 | |
| 274 | clid->cl_boot = sid->clientid.cl_boot; |
| 275 | clid->cl_id = sid->clientid.cl_id; |
| 276 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 277 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 278 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 279 | nfsd4_open(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
J.Bruce Fields | a4f1706a9 | 2006-12-13 00:35:28 -0800 | [diff] [blame] | 280 | struct nfsd4_open *open) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 281 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 282 | __be32 status; |
Andy Adamson | 6668958 | 2009-04-03 08:28:45 +0300 | [diff] [blame] | 283 | struct nfsd4_compoundres *resp; |
| 284 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 285 | dprintk("NFSD: nfsd4_open filename %.*s op_stateowner %p\n", |
| 286 | (int)open->op_fname.len, open->op_fname.data, |
| 287 | open->op_stateowner); |
| 288 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 289 | /* This check required by spec. */ |
| 290 | if (open->op_create && open->op_claim_type != NFS4_OPEN_CLAIM_NULL) |
| 291 | return nfserr_inval; |
| 292 | |
Andy Adamson | 60adfc5 | 2009-04-03 08:28:50 +0300 | [diff] [blame] | 293 | if (nfsd4_has_session(cstate)) |
| 294 | copy_clientid(&open->op_clientid, cstate->session); |
| 295 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 296 | nfs4_lock_state(); |
| 297 | |
| 298 | /* check seqid for replay. set nfs4_owner */ |
Andy Adamson | 6668958 | 2009-04-03 08:28:45 +0300 | [diff] [blame] | 299 | resp = rqstp->rq_resp; |
| 300 | status = nfsd4_process_open1(&resp->cstate, open); |
Al Viro | a90b061 | 2006-10-19 23:29:03 -0700 | [diff] [blame] | 301 | if (status == nfserr_replay_me) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 302 | struct nfs4_replay *rp = &open->op_stateowner->so_replay; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 303 | fh_put(&cstate->current_fh); |
J. Bruce Fields | a4773c08 | 2009-02-02 17:23:10 -0500 | [diff] [blame] | 304 | fh_copy_shallow(&cstate->current_fh.fh_handle, |
| 305 | &rp->rp_openfh); |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 306 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 307 | if (status) |
| 308 | dprintk("nfsd4_open: replay failed" |
| 309 | " restoring previous filehandle\n"); |
| 310 | else |
Al Viro | a90b061 | 2006-10-19 23:29:03 -0700 | [diff] [blame] | 311 | status = nfserr_replay_me; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 312 | } |
| 313 | if (status) |
| 314 | goto out; |
J. Bruce Fields | fb553c0 | 2006-01-18 17:43:36 -0800 | [diff] [blame] | 315 | |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 316 | status = nfsd4_check_open_attributes(rqstp, cstate, open); |
| 317 | if (status) |
| 318 | goto out; |
| 319 | |
J. Bruce Fields | fb553c0 | 2006-01-18 17:43:36 -0800 | [diff] [blame] | 320 | /* Openowner is now set, so sequence id will get bumped. Now we need |
| 321 | * these checks before we do any creates: */ |
J. Bruce Fields | cbd0d51 | 2006-02-07 12:58:32 -0800 | [diff] [blame] | 322 | status = nfserr_grace; |
J. Bruce Fields | af558e3 | 2007-09-06 12:34:25 -0400 | [diff] [blame] | 323 | 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] | 324 | goto out; |
| 325 | status = nfserr_no_grace; |
J. Bruce Fields | af558e3 | 2007-09-06 12:34:25 -0400 | [diff] [blame] | 326 | 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] | 327 | goto out; |
J. Bruce Fields | fb553c0 | 2006-01-18 17:43:36 -0800 | [diff] [blame] | 328 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 329 | switch (open->op_claim_type) { |
NeilBrown | 0dd3c19 | 2005-06-23 22:02:56 -0700 | [diff] [blame] | 330 | case NFS4_OPEN_CLAIM_DELEGATE_CUR: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 331 | case NFS4_OPEN_CLAIM_NULL: |
| 332 | /* |
| 333 | * (1) set CURRENT_FH to the file being opened, |
| 334 | * creating it if necessary, (2) set open->op_cinfo, |
| 335 | * (3) set open->op_truncate if the file is to be |
| 336 | * truncated after opening, (4) do permission checking. |
| 337 | */ |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 338 | status = do_open_lookup(rqstp, &cstate->current_fh, |
| 339 | open); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 340 | if (status) |
| 341 | goto out; |
| 342 | break; |
| 343 | case NFS4_OPEN_CLAIM_PREVIOUS: |
J. Bruce Fields | a525825 | 2006-01-18 17:43:30 -0800 | [diff] [blame] | 344 | open->op_stateowner->so_confirmed = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 345 | /* |
| 346 | * The CURRENT_FH is already set to the file being |
| 347 | * opened. (1) set open->op_cinfo, (2) set |
| 348 | * open->op_truncate if the file is to be truncated |
| 349 | * after opening, (3) do permission checking. |
| 350 | */ |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 351 | status = do_open_fhandle(rqstp, &cstate->current_fh, |
| 352 | open); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 353 | if (status) |
| 354 | goto out; |
| 355 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 356 | case NFS4_OPEN_CLAIM_DELEGATE_PREV: |
J. Bruce Fields | a525825 | 2006-01-18 17:43:30 -0800 | [diff] [blame] | 357 | open->op_stateowner->so_confirmed = 1; |
J. Bruce Fields | 2fdada0 | 2007-07-27 16:10:37 -0400 | [diff] [blame] | 358 | dprintk("NFSD: unsupported OPEN claim type %d\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 359 | open->op_claim_type); |
| 360 | status = nfserr_notsupp; |
| 361 | goto out; |
| 362 | default: |
J. Bruce Fields | 2fdada0 | 2007-07-27 16:10:37 -0400 | [diff] [blame] | 363 | dprintk("NFSD: Invalid OPEN claim type %d\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 364 | open->op_claim_type); |
| 365 | status = nfserr_inval; |
| 366 | goto out; |
| 367 | } |
| 368 | /* |
| 369 | * nfsd4_process_open2() does the actual opening of the file. If |
| 370 | * successful, it (1) truncates the file if open->op_truncate was |
| 371 | * set, (2) sets open->op_stateid, (3) sets open->op_delegation. |
| 372 | */ |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 373 | status = nfsd4_process_open2(rqstp, &cstate->current_fh, open); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 374 | out: |
Neil Brown | f2327d9 | 2005-09-13 01:25:37 -0700 | [diff] [blame] | 375 | if (open->op_stateowner) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 376 | nfs4_get_stateowner(open->op_stateowner); |
J.Bruce Fields | a4f1706a9 | 2006-12-13 00:35:28 -0800 | [diff] [blame] | 377 | cstate->replay_owner = open->op_stateowner; |
Neil Brown | f2327d9 | 2005-09-13 01:25:37 -0700 | [diff] [blame] | 378 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 379 | nfs4_unlock_state(); |
| 380 | return status; |
| 381 | } |
| 382 | |
| 383 | /* |
| 384 | * filehandle-manipulating ops. |
| 385 | */ |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 386 | static __be32 |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 387 | nfsd4_getfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 388 | struct svc_fh **getfh) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 389 | { |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 390 | if (!cstate->current_fh.fh_dentry) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 391 | return nfserr_nofilehandle; |
| 392 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 393 | *getfh = &cstate->current_fh; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 394 | return nfs_ok; |
| 395 | } |
| 396 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 397 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 398 | nfsd4_putfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 399 | struct nfsd4_putfh *putfh) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 400 | { |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 401 | fh_put(&cstate->current_fh); |
| 402 | cstate->current_fh.fh_handle.fh_size = putfh->pf_fhlen; |
| 403 | memcpy(&cstate->current_fh.fh_handle.fh_base, putfh->pf_fhval, |
| 404 | putfh->pf_fhlen); |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 405 | return fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 406 | } |
| 407 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 408 | static __be32 |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 409 | nfsd4_putrootfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 410 | void *arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 411 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 412 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 413 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 414 | fh_put(&cstate->current_fh); |
J. Bruce Fields | df547ef | 2007-07-17 04:04:43 -0700 | [diff] [blame] | 415 | status = exp_pseudoroot(rqstp, &cstate->current_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 416 | return status; |
| 417 | } |
| 418 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 419 | static __be32 |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 420 | nfsd4_restorefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 421 | void *arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 422 | { |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 423 | if (!cstate->save_fh.fh_dentry) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 424 | return nfserr_restorefh; |
| 425 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 426 | fh_dup2(&cstate->current_fh, &cstate->save_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 427 | return nfs_ok; |
| 428 | } |
| 429 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 430 | static __be32 |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 431 | nfsd4_savefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 432 | void *arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 433 | { |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 434 | if (!cstate->current_fh.fh_dentry) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 435 | return nfserr_nofilehandle; |
| 436 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 437 | fh_dup2(&cstate->save_fh, &cstate->current_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 438 | return nfs_ok; |
| 439 | } |
| 440 | |
| 441 | /* |
| 442 | * misc nfsv4 ops |
| 443 | */ |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 444 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 445 | nfsd4_access(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 446 | struct nfsd4_access *access) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 447 | { |
| 448 | if (access->ac_req_access & ~NFS3_ACCESS_FULL) |
| 449 | return nfserr_inval; |
| 450 | |
| 451 | access->ac_resp_access = access->ac_req_access; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 452 | return nfsd_access(rqstp, &cstate->current_fh, &access->ac_resp_access, |
| 453 | &access->ac_supported); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 454 | } |
| 455 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 456 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 457 | nfsd4_commit(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 458 | struct nfsd4_commit *commit) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 459 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 460 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 461 | |
| 462 | u32 *p = (u32 *)commit->co_verf.data; |
| 463 | *p++ = nfssvc_boot.tv_sec; |
| 464 | *p++ = nfssvc_boot.tv_usec; |
| 465 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 466 | status = nfsd_commit(rqstp, &cstate->current_fh, commit->co_offset, |
| 467 | commit->co_count); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 468 | if (status == nfserr_symlink) |
| 469 | status = nfserr_inval; |
| 470 | return status; |
| 471 | } |
| 472 | |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 473 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 474 | nfsd4_create(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 475 | struct nfsd4_create *create) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 476 | { |
| 477 | struct svc_fh resfh; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 478 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 479 | dev_t rdev; |
| 480 | |
| 481 | fh_init(&resfh, NFS4_FHSIZE); |
| 482 | |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 483 | status = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, |
| 484 | NFSD_MAY_CREATE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 485 | if (status == nfserr_symlink) |
| 486 | status = nfserr_notdir; |
| 487 | if (status) |
| 488 | return status; |
| 489 | |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 490 | status = check_attr_support(rqstp, cstate, create->cr_bmval, |
| 491 | nfsd_attrmask); |
| 492 | if (status) |
| 493 | return status; |
| 494 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 495 | switch (create->cr_type) { |
| 496 | case NF4LNK: |
| 497 | /* ugh! we have to null-terminate the linktext, or |
| 498 | * vfs_symlink() will choke. it is always safe to |
| 499 | * null-terminate by brute force, since at worst we |
| 500 | * will overwrite the first byte of the create namelen |
| 501 | * in the XDR buffer, which has already been extracted |
| 502 | * during XDR decode. |
| 503 | */ |
| 504 | create->cr_linkname[create->cr_linklen] = 0; |
| 505 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 506 | status = nfsd_symlink(rqstp, &cstate->current_fh, |
| 507 | create->cr_name, create->cr_namelen, |
| 508 | create->cr_linkname, create->cr_linklen, |
| 509 | &resfh, &create->cr_iattr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 510 | break; |
| 511 | |
| 512 | case NF4BLK: |
| 513 | rdev = MKDEV(create->cr_specdata1, create->cr_specdata2); |
| 514 | if (MAJOR(rdev) != create->cr_specdata1 || |
| 515 | MINOR(rdev) != create->cr_specdata2) |
| 516 | return nfserr_inval; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 517 | status = nfsd_create(rqstp, &cstate->current_fh, |
| 518 | create->cr_name, create->cr_namelen, |
| 519 | &create->cr_iattr, S_IFBLK, rdev, &resfh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 520 | break; |
| 521 | |
| 522 | case NF4CHR: |
| 523 | rdev = MKDEV(create->cr_specdata1, create->cr_specdata2); |
| 524 | if (MAJOR(rdev) != create->cr_specdata1 || |
| 525 | MINOR(rdev) != create->cr_specdata2) |
| 526 | return nfserr_inval; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 527 | status = nfsd_create(rqstp, &cstate->current_fh, |
| 528 | create->cr_name, create->cr_namelen, |
| 529 | &create->cr_iattr,S_IFCHR, rdev, &resfh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 530 | break; |
| 531 | |
| 532 | case NF4SOCK: |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 533 | status = nfsd_create(rqstp, &cstate->current_fh, |
| 534 | create->cr_name, create->cr_namelen, |
| 535 | &create->cr_iattr, S_IFSOCK, 0, &resfh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 536 | break; |
| 537 | |
| 538 | case NF4FIFO: |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 539 | status = nfsd_create(rqstp, &cstate->current_fh, |
| 540 | create->cr_name, create->cr_namelen, |
| 541 | &create->cr_iattr, S_IFIFO, 0, &resfh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 542 | break; |
| 543 | |
| 544 | case NF4DIR: |
| 545 | create->cr_iattr.ia_valid &= ~ATTR_SIZE; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 546 | status = nfsd_create(rqstp, &cstate->current_fh, |
| 547 | create->cr_name, create->cr_namelen, |
| 548 | &create->cr_iattr, S_IFDIR, 0, &resfh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 549 | break; |
| 550 | |
| 551 | default: |
| 552 | status = nfserr_badtype; |
| 553 | } |
| 554 | |
Yu Zhiguo | 9208faf | 2009-07-06 17:24:16 +0800 | [diff] [blame] | 555 | if (status) |
| 556 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 557 | |
Yu Zhiguo | 9208faf | 2009-07-06 17:24:16 +0800 | [diff] [blame] | 558 | if (create->cr_acl != NULL) |
| 559 | do_set_nfs4_acl(rqstp, &resfh, create->cr_acl, |
| 560 | create->cr_bmval); |
| 561 | |
| 562 | fh_unlock(&cstate->current_fh); |
| 563 | set_change_info(&create->cr_cinfo, &cstate->current_fh); |
| 564 | fh_dup2(&cstate->current_fh, &resfh); |
| 565 | out: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 566 | fh_put(&resfh); |
| 567 | return status; |
| 568 | } |
| 569 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 570 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 571 | nfsd4_getattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 572 | struct nfsd4_getattr *getattr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 573 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 574 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 575 | |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 576 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 577 | if (status) |
| 578 | return status; |
| 579 | |
| 580 | if (getattr->ga_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1) |
| 581 | return nfserr_inval; |
| 582 | |
Andy Adamson | 7e70570 | 2009-04-03 08:29:11 +0300 | [diff] [blame] | 583 | getattr->ga_bmval[0] &= nfsd_suppattrs0(cstate->minorversion); |
| 584 | getattr->ga_bmval[1] &= nfsd_suppattrs1(cstate->minorversion); |
| 585 | getattr->ga_bmval[2] &= nfsd_suppattrs2(cstate->minorversion); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 586 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 587 | getattr->ga_fhp = &cstate->current_fh; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 588 | return nfs_ok; |
| 589 | } |
| 590 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 591 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 592 | nfsd4_link(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 593 | struct nfsd4_link *link) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 594 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 595 | __be32 status = nfserr_nofilehandle; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 596 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 597 | if (!cstate->save_fh.fh_dentry) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 598 | return status; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 599 | status = nfsd_link(rqstp, &cstate->current_fh, |
| 600 | link->li_name, link->li_namelen, &cstate->save_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 601 | if (!status) |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 602 | set_change_info(&link->li_cinfo, &cstate->current_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 603 | return status; |
| 604 | } |
| 605 | |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 606 | static __be32 |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 607 | nfsd4_lookupp(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 608 | void *arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 609 | { |
| 610 | struct svc_fh tmp_fh; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 611 | __be32 ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 612 | |
| 613 | fh_init(&tmp_fh, NFS4_FHSIZE); |
J. Bruce Fields | df547ef | 2007-07-17 04:04:43 -0700 | [diff] [blame] | 614 | ret = exp_pseudoroot(rqstp, &tmp_fh); |
| 615 | if (ret) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 616 | return ret; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 617 | if (tmp_fh.fh_dentry == cstate->current_fh.fh_dentry) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 618 | fh_put(&tmp_fh); |
| 619 | return nfserr_noent; |
| 620 | } |
| 621 | fh_put(&tmp_fh); |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 622 | return nfsd_lookup(rqstp, &cstate->current_fh, |
| 623 | "..", 2, &cstate->current_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 624 | } |
| 625 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 626 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 627 | nfsd4_lookup(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 628 | struct nfsd4_lookup *lookup) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 629 | { |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 630 | return nfsd_lookup(rqstp, &cstate->current_fh, |
| 631 | lookup->lo_name, lookup->lo_len, |
| 632 | &cstate->current_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 633 | } |
| 634 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 635 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 636 | nfsd4_read(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 637 | struct nfsd4_read *read) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 638 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 639 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 640 | |
| 641 | /* no need to check permission - this will be done in nfsd_read() */ |
| 642 | |
NeilBrown | 7e06b7f | 2005-06-23 22:03:13 -0700 | [diff] [blame] | 643 | read->rd_filp = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 644 | if (read->rd_offset >= OFFSET_MAX) |
| 645 | return nfserr_inval; |
| 646 | |
| 647 | nfs4_lock_state(); |
| 648 | /* check stateid */ |
Benny Halevy | dd453df | 2009-04-03 08:28:41 +0300 | [diff] [blame] | 649 | if ((status = nfs4_preprocess_stateid_op(cstate, &read->rd_stateid, |
| 650 | RD_STATE, &read->rd_filp))) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 651 | dprintk("NFSD: nfsd4_read: couldn't process stateid!\n"); |
| 652 | goto out; |
| 653 | } |
NeilBrown | 7e06b7f | 2005-06-23 22:03:13 -0700 | [diff] [blame] | 654 | if (read->rd_filp) |
| 655 | get_file(read->rd_filp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 656 | status = nfs_ok; |
| 657 | out: |
| 658 | nfs4_unlock_state(); |
| 659 | read->rd_rqstp = rqstp; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 660 | read->rd_fhp = &cstate->current_fh; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 661 | return status; |
| 662 | } |
| 663 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 664 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 665 | nfsd4_readdir(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 666 | struct nfsd4_readdir *readdir) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 667 | { |
| 668 | u64 cookie = readdir->rd_cookie; |
| 669 | static const nfs4_verifier zeroverf; |
| 670 | |
| 671 | /* no need to check permission - this will be done in nfsd_readdir() */ |
| 672 | |
| 673 | if (readdir->rd_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1) |
| 674 | return nfserr_inval; |
| 675 | |
Andy Adamson | 7e70570 | 2009-04-03 08:29:11 +0300 | [diff] [blame] | 676 | readdir->rd_bmval[0] &= nfsd_suppattrs0(cstate->minorversion); |
| 677 | readdir->rd_bmval[1] &= nfsd_suppattrs1(cstate->minorversion); |
| 678 | readdir->rd_bmval[2] &= nfsd_suppattrs2(cstate->minorversion); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 679 | |
| 680 | if ((cookie > ~(u32)0) || (cookie == 1) || (cookie == 2) || |
| 681 | (cookie == 0 && memcmp(readdir->rd_verf.data, zeroverf.data, NFS4_VERIFIER_SIZE))) |
| 682 | return nfserr_bad_cookie; |
| 683 | |
| 684 | readdir->rd_rqstp = rqstp; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 685 | readdir->rd_fhp = &cstate->current_fh; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 686 | return nfs_ok; |
| 687 | } |
| 688 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 689 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 690 | nfsd4_readlink(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 691 | struct nfsd4_readlink *readlink) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 692 | { |
| 693 | readlink->rl_rqstp = rqstp; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 694 | readlink->rl_fhp = &cstate->current_fh; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 695 | return nfs_ok; |
| 696 | } |
| 697 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 698 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 699 | nfsd4_remove(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 700 | struct nfsd4_remove *remove) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 701 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 702 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 703 | |
J. Bruce Fields | af558e3 | 2007-09-06 12:34:25 -0400 | [diff] [blame] | 704 | if (locks_in_grace()) |
NeilBrown | c815afc | 2005-06-23 22:03:00 -0700 | [diff] [blame] | 705 | return nfserr_grace; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 706 | status = nfsd_unlink(rqstp, &cstate->current_fh, 0, |
| 707 | remove->rm_name, remove->rm_namelen); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 708 | if (status == nfserr_symlink) |
| 709 | return nfserr_notdir; |
| 710 | if (!status) { |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 711 | fh_unlock(&cstate->current_fh); |
| 712 | set_change_info(&remove->rm_cinfo, &cstate->current_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 713 | } |
| 714 | return status; |
| 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_rename(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 719 | struct nfsd4_rename *rename) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 720 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 721 | __be32 status = nfserr_nofilehandle; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 722 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 723 | if (!cstate->save_fh.fh_dentry) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 724 | return status; |
J. Bruce Fields | af558e3 | 2007-09-06 12:34:25 -0400 | [diff] [blame] | 725 | if (locks_in_grace() && !(cstate->save_fh.fh_export->ex_flags |
NeilBrown | c815afc | 2005-06-23 22:03:00 -0700 | [diff] [blame] | 726 | & NFSEXP_NOSUBTREECHECK)) |
| 727 | return nfserr_grace; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 728 | status = nfsd_rename(rqstp, &cstate->save_fh, rename->rn_sname, |
| 729 | rename->rn_snamelen, &cstate->current_fh, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 730 | rename->rn_tname, rename->rn_tnamelen); |
| 731 | |
| 732 | /* the underlying filesystem returns different error's than required |
| 733 | * by NFSv4. both save_fh and current_fh have been verified.. */ |
| 734 | if (status == nfserr_isdir) |
| 735 | status = nfserr_exist; |
| 736 | else if ((status == nfserr_notdir) && |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 737 | (S_ISDIR(cstate->save_fh.fh_dentry->d_inode->i_mode) && |
| 738 | S_ISDIR(cstate->current_fh.fh_dentry->d_inode->i_mode))) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 739 | status = nfserr_exist; |
| 740 | else if (status == nfserr_symlink) |
| 741 | status = nfserr_notdir; |
| 742 | |
| 743 | if (!status) { |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 744 | set_change_info(&rename->rn_sinfo, &cstate->current_fh); |
| 745 | set_change_info(&rename->rn_tinfo, &cstate->save_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 746 | } |
| 747 | return status; |
| 748 | } |
| 749 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 750 | static __be32 |
Andy Adamson | dcb488a3 | 2007-07-17 04:04:51 -0700 | [diff] [blame] | 751 | nfsd4_secinfo(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 752 | struct nfsd4_secinfo *secinfo) |
| 753 | { |
| 754 | struct svc_fh resfh; |
| 755 | struct svc_export *exp; |
| 756 | struct dentry *dentry; |
| 757 | __be32 err; |
| 758 | |
| 759 | fh_init(&resfh, NFS4_FHSIZE); |
| 760 | err = nfsd_lookup_dentry(rqstp, &cstate->current_fh, |
| 761 | secinfo->si_name, secinfo->si_namelen, |
| 762 | &exp, &dentry); |
| 763 | if (err) |
| 764 | return err; |
| 765 | if (dentry->d_inode == NULL) { |
| 766 | exp_put(exp); |
| 767 | err = nfserr_noent; |
| 768 | } else |
| 769 | secinfo->si_exp = exp; |
| 770 | dput(dentry); |
| 771 | return err; |
| 772 | } |
| 773 | |
| 774 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 775 | nfsd4_setattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 776 | struct nfsd4_setattr *setattr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 777 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 778 | __be32 status = nfs_ok; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 779 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 780 | if (setattr->sa_iattr.ia_valid & ATTR_SIZE) { |
| 781 | nfs4_lock_state(); |
Benny Halevy | dd453df | 2009-04-03 08:28:41 +0300 | [diff] [blame] | 782 | status = nfs4_preprocess_stateid_op(cstate, |
J. Bruce Fields | 6150ef0 | 2009-02-21 13:36:16 -0800 | [diff] [blame] | 783 | &setattr->sa_stateid, WR_STATE, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 784 | nfs4_unlock_state(); |
J. Bruce Fields | 375c554 | 2006-01-18 17:43:33 -0800 | [diff] [blame] | 785 | if (status) { |
Greg Banks | 3e3b480 | 2006-10-02 02:17:41 -0700 | [diff] [blame] | 786 | dprintk("NFSD: nfsd4_setattr: couldn't process stateid!\n"); |
J. Bruce Fields | 375c554 | 2006-01-18 17:43:33 -0800 | [diff] [blame] | 787 | return status; |
| 788 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 789 | } |
Dave Hansen | 18f335a | 2008-02-15 14:37:38 -0800 | [diff] [blame] | 790 | status = mnt_want_write(cstate->current_fh.fh_export->ex_path.mnt); |
| 791 | if (status) |
| 792 | return status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 793 | status = nfs_ok; |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 794 | |
| 795 | status = check_attr_support(rqstp, cstate, setattr->sa_bmval, |
| 796 | nfsd_attrmask); |
| 797 | if (status) |
| 798 | goto out; |
| 799 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 800 | if (setattr->sa_acl != NULL) |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 801 | status = nfsd4_set_nfs4_acl(rqstp, &cstate->current_fh, |
| 802 | setattr->sa_acl); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 803 | if (status) |
Dave Hansen | 18f335a | 2008-02-15 14:37:38 -0800 | [diff] [blame] | 804 | goto out; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 805 | status = nfsd_setattr(rqstp, &cstate->current_fh, &setattr->sa_iattr, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 806 | 0, (time_t)0); |
Dave Hansen | 18f335a | 2008-02-15 14:37:38 -0800 | [diff] [blame] | 807 | out: |
| 808 | mnt_drop_write(cstate->current_fh.fh_export->ex_path.mnt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 809 | return status; |
| 810 | } |
| 811 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 812 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 813 | nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 814 | struct nfsd4_write *write) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 815 | { |
| 816 | stateid_t *stateid = &write->wr_stateid; |
| 817 | struct file *filp = NULL; |
| 818 | u32 *p; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 819 | __be32 status = nfs_ok; |
David Shaw | 31dec25 | 2009-03-05 20:16:14 -0500 | [diff] [blame] | 820 | unsigned long cnt; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 821 | |
| 822 | /* no need to check permission - this will be done in nfsd_write() */ |
| 823 | |
| 824 | if (write->wr_offset >= OFFSET_MAX) |
| 825 | return nfserr_inval; |
| 826 | |
| 827 | nfs4_lock_state(); |
Benny Halevy | dd453df | 2009-04-03 08:28:41 +0300 | [diff] [blame] | 828 | status = nfs4_preprocess_stateid_op(cstate, stateid, WR_STATE, &filp); |
NeilBrown | 7e06b7f | 2005-06-23 22:03:13 -0700 | [diff] [blame] | 829 | if (filp) |
| 830 | get_file(filp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 831 | nfs4_unlock_state(); |
| 832 | |
J. Bruce Fields | 375c554 | 2006-01-18 17:43:33 -0800 | [diff] [blame] | 833 | if (status) { |
| 834 | dprintk("NFSD: nfsd4_write: couldn't process stateid!\n"); |
| 835 | return status; |
| 836 | } |
| 837 | |
David Shaw | 31dec25 | 2009-03-05 20:16:14 -0500 | [diff] [blame] | 838 | cnt = write->wr_buflen; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 839 | write->wr_how_written = write->wr_stable_how; |
| 840 | p = (u32 *)write->wr_verifier.data; |
| 841 | *p++ = nfssvc_boot.tv_sec; |
| 842 | *p++ = nfssvc_boot.tv_usec; |
| 843 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 844 | status = nfsd_write(rqstp, &cstate->current_fh, filp, |
| 845 | write->wr_offset, rqstp->rq_vec, write->wr_vlen, |
David Shaw | 31dec25 | 2009-03-05 20:16:14 -0500 | [diff] [blame] | 846 | &cnt, &write->wr_how_written); |
NeilBrown | 7e06b7f | 2005-06-23 22:03:13 -0700 | [diff] [blame] | 847 | if (filp) |
| 848 | fput(filp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 849 | |
David Shaw | 31dec25 | 2009-03-05 20:16:14 -0500 | [diff] [blame] | 850 | write->wr_bytes_written = cnt; |
| 851 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 852 | if (status == nfserr_symlink) |
| 853 | status = nfserr_inval; |
| 854 | return status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 855 | } |
| 856 | |
| 857 | /* This routine never returns NFS_OK! If there are no other errors, it |
| 858 | * will return NFSERR_SAME or NFSERR_NOT_SAME depending on whether the |
| 859 | * attributes matched. VERIFY is implemented by mapping NFSERR_SAME |
| 860 | * to NFS_OK after the call; NVERIFY by mapping NFSERR_NOT_SAME to NFS_OK. |
| 861 | */ |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 862 | static __be32 |
J.Bruce Fields | c954e2a | 2006-12-13 00:35:31 -0800 | [diff] [blame] | 863 | _nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 864 | struct nfsd4_verify *verify) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 865 | { |
Al Viro | 2ebbc01 | 2006-10-19 23:28:58 -0700 | [diff] [blame] | 866 | __be32 *buf, *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 867 | int count; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 868 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 869 | |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 870 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 871 | if (status) |
| 872 | return status; |
| 873 | |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 874 | status = check_attr_support(rqstp, cstate, verify->ve_bmval, NULL); |
| 875 | if (status) |
| 876 | return status; |
| 877 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 878 | if ((verify->ve_bmval[0] & FATTR4_WORD0_RDATTR_ERROR) |
| 879 | || (verify->ve_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1)) |
| 880 | return nfserr_inval; |
| 881 | if (verify->ve_attrlen & 3) |
| 882 | return nfserr_inval; |
| 883 | |
| 884 | /* count in words: |
| 885 | * bitmap_len(1) + bitmap(2) + attr_len(1) = 4 |
| 886 | */ |
| 887 | count = 4 + (verify->ve_attrlen >> 2); |
| 888 | buf = kmalloc(count << 2, GFP_KERNEL); |
| 889 | if (!buf) |
| 890 | return nfserr_resource; |
| 891 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 892 | status = nfsd4_encode_fattr(&cstate->current_fh, |
| 893 | cstate->current_fh.fh_export, |
| 894 | cstate->current_fh.fh_dentry, buf, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 895 | &count, verify->ve_bmval, |
Frank Filz | 406a7ea | 2007-11-27 11:34:05 -0800 | [diff] [blame] | 896 | rqstp, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 897 | |
| 898 | /* this means that nfsd4_encode_fattr() ran out of space */ |
| 899 | if (status == nfserr_resource && count == 0) |
| 900 | status = nfserr_not_same; |
| 901 | if (status) |
| 902 | goto out_kfree; |
| 903 | |
Benny Halevy | 95ec28c | 2009-04-03 08:29:08 +0300 | [diff] [blame] | 904 | /* skip bitmap */ |
| 905 | p = buf + 1 + ntohl(buf[0]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 906 | status = nfserr_not_same; |
| 907 | if (ntohl(*p++) != verify->ve_attrlen) |
| 908 | goto out_kfree; |
| 909 | if (!memcmp(p, verify->ve_attrval, verify->ve_attrlen)) |
| 910 | status = nfserr_same; |
| 911 | |
| 912 | out_kfree: |
| 913 | kfree(buf); |
| 914 | return status; |
| 915 | } |
| 916 | |
J.Bruce Fields | c954e2a | 2006-12-13 00:35:31 -0800 | [diff] [blame] | 917 | static __be32 |
| 918 | nfsd4_nverify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 919 | struct nfsd4_verify *verify) |
| 920 | { |
| 921 | __be32 status; |
| 922 | |
| 923 | status = _nfsd4_verify(rqstp, cstate, verify); |
| 924 | return status == nfserr_not_same ? nfs_ok : status; |
| 925 | } |
| 926 | |
| 927 | static __be32 |
| 928 | nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 929 | struct nfsd4_verify *verify) |
| 930 | { |
| 931 | __be32 status; |
| 932 | |
| 933 | status = _nfsd4_verify(rqstp, cstate, verify); |
| 934 | return status == nfserr_same ? nfs_ok : status; |
| 935 | } |
| 936 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 937 | /* |
| 938 | * NULL call. |
| 939 | */ |
Al Viro | 7111c66 | 2006-10-19 23:28:45 -0700 | [diff] [blame] | 940 | static __be32 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 941 | nfsd4_proc_null(struct svc_rqst *rqstp, void *argp, void *resp) |
| 942 | { |
| 943 | return nfs_ok; |
| 944 | } |
| 945 | |
Shankar Anand | e2b2095 | 2006-07-10 04:45:44 -0700 | [diff] [blame] | 946 | static inline void nfsd4_increment_op_stats(u32 opnum) |
| 947 | { |
| 948 | if (opnum >= FIRST_NFS4_OP && opnum <= LAST_NFS4_OP) |
| 949 | nfsdstats.nfs4_opcount[opnum]++; |
| 950 | } |
| 951 | |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 952 | typedef __be32(*nfsd4op_func)(struct svc_rqst *, struct nfsd4_compound_state *, |
| 953 | void *); |
Andy Adamson | f9bb94c | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 954 | enum nfsd4_op_flags { |
| 955 | ALLOWED_WITHOUT_FH = 1 << 0, /* No current filehandle required */ |
| 956 | ALLOWED_ON_ABSENT_FS = 2 << 0, /* ops processed on absent fs */ |
| 957 | ALLOWED_AS_FIRST_OP = 3 << 0, /* ops reqired first in compound */ |
| 958 | }; |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 959 | |
| 960 | struct nfsd4_operation { |
| 961 | nfsd4op_func op_func; |
| 962 | u32 op_flags; |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 963 | char *op_name; |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 964 | }; |
| 965 | |
| 966 | static struct nfsd4_operation nfsd4_ops[]; |
| 967 | |
Adrian Bunk | f1c7f79 | 2008-08-08 19:26:42 +0300 | [diff] [blame] | 968 | static const char *nfsd4_op_name(unsigned opnum); |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 969 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 970 | /* |
Andy Adamson | f9bb94c | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 971 | * Enforce NFSv4.1 COMPOUND ordering rules. |
| 972 | * |
| 973 | * TODO: |
| 974 | * - enforce NFS4ERR_NOT_ONLY_OP, |
| 975 | * - DESTROY_SESSION MUST be the final operation in the COMPOUND request. |
| 976 | */ |
| 977 | static bool nfs41_op_ordering_ok(struct nfsd4_compoundargs *args) |
| 978 | { |
| 979 | if (args->minorversion && args->opcnt > 0) { |
| 980 | struct nfsd4_op *op = &args->ops[0]; |
| 981 | return (op->status == nfserr_op_illegal) || |
| 982 | (nfsd4_ops[op->opnum].op_flags & ALLOWED_AS_FIRST_OP); |
| 983 | } |
| 984 | return true; |
| 985 | } |
| 986 | |
| 987 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 988 | * COMPOUND call. |
| 989 | */ |
Al Viro | 7111c66 | 2006-10-19 23:28:45 -0700 | [diff] [blame] | 990 | static __be32 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 991 | nfsd4_proc_compound(struct svc_rqst *rqstp, |
| 992 | struct nfsd4_compoundargs *args, |
| 993 | struct nfsd4_compoundres *resp) |
| 994 | { |
| 995 | struct nfsd4_op *op; |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 996 | struct nfsd4_operation *opdesc; |
Andy Adamson | e354d57 | 2009-03-28 11:30:52 +0300 | [diff] [blame] | 997 | struct nfsd4_compound_state *cstate = &resp->cstate; |
J.Bruce Fields | e571019 | 2006-12-13 00:35:20 -0800 | [diff] [blame] | 998 | int slack_bytes; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 999 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1000 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1001 | resp->xbuf = &rqstp->rq_res; |
Andy Adamson | e354d57 | 2009-03-28 11:30:52 +0300 | [diff] [blame] | 1002 | resp->p = rqstp->rq_res.head[0].iov_base + |
| 1003 | rqstp->rq_res.head[0].iov_len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1004 | resp->tagp = resp->p; |
| 1005 | /* reserve space for: taglen, tag, and opcnt */ |
| 1006 | resp->p += 2 + XDR_QUADLEN(args->taglen); |
| 1007 | resp->end = rqstp->rq_res.head[0].iov_base + PAGE_SIZE; |
| 1008 | resp->taglen = args->taglen; |
| 1009 | resp->tag = args->tag; |
| 1010 | resp->opcnt = 0; |
| 1011 | resp->rqstp = rqstp; |
Andy Adamson | d87a8ad | 2009-04-03 08:28:53 +0300 | [diff] [blame] | 1012 | resp->cstate.minorversion = args->minorversion; |
Andy Adamson | e354d57 | 2009-03-28 11:30:52 +0300 | [diff] [blame] | 1013 | resp->cstate.replay_owner = NULL; |
| 1014 | fh_init(&resp->cstate.current_fh, NFS4_FHSIZE); |
| 1015 | fh_init(&resp->cstate.save_fh, NFS4_FHSIZE); |
Andy Adamson | 2f42587 | 2009-04-03 08:27:32 +0300 | [diff] [blame] | 1016 | /* Use the deferral mechanism only for NFSv4.0 compounds */ |
| 1017 | rqstp->rq_usedeferral = (args->minorversion == 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1018 | |
| 1019 | /* |
| 1020 | * According to RFC3010, this takes precedence over all other errors. |
| 1021 | */ |
| 1022 | status = nfserr_minor_vers_mismatch; |
Benny Halevy | 8daf220 | 2009-04-03 08:28:59 +0300 | [diff] [blame] | 1023 | if (args->minorversion > nfsd_supported_minorversion) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1024 | goto out; |
| 1025 | |
Andy Adamson | f9bb94c | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1026 | if (!nfs41_op_ordering_ok(args)) { |
| 1027 | op = &args->ops[0]; |
| 1028 | op->status = nfserr_sequence_pos; |
| 1029 | goto encode_op; |
| 1030 | } |
| 1031 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1032 | status = nfs_ok; |
| 1033 | while (!status && resp->opcnt < args->opcnt) { |
| 1034 | op = &args->ops[resp->opcnt++]; |
| 1035 | |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1036 | dprintk("nfsv4 compound op #%d/%d: %d (%s)\n", |
| 1037 | resp->opcnt, args->opcnt, op->opnum, |
| 1038 | nfsd4_op_name(op->opnum)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1039 | /* |
| 1040 | * The XDR decode routines may have pre-set op->status; |
| 1041 | * for example, if there is a miscellaneous XDR error |
| 1042 | * it will be set to nfserr_bad_xdr. |
| 1043 | */ |
| 1044 | if (op->status) |
| 1045 | goto encode_op; |
| 1046 | |
| 1047 | /* We must be able to encode a successful response to |
| 1048 | * this operation, with enough room left over to encode a |
| 1049 | * failed response to the next operation. If we don't |
| 1050 | * have enough room, fail with ERR_RESOURCE. |
| 1051 | */ |
J.Bruce Fields | e571019 | 2006-12-13 00:35:20 -0800 | [diff] [blame] | 1052 | slack_bytes = (char *)resp->end - (char *)resp->p; |
| 1053 | if (slack_bytes < COMPOUND_SLACK_SPACE |
| 1054 | + COMPOUND_ERR_SLACK_SPACE) { |
| 1055 | BUG_ON(slack_bytes < COMPOUND_ERR_SLACK_SPACE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1056 | op->status = nfserr_resource; |
| 1057 | goto encode_op; |
| 1058 | } |
| 1059 | |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1060 | opdesc = &nfsd4_ops[op->opnum]; |
| 1061 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 1062 | if (!cstate->current_fh.fh_dentry) { |
J.Bruce Fields | 27d630e | 2006-12-13 00:35:43 -0800 | [diff] [blame] | 1063 | if (!(opdesc->op_flags & ALLOWED_WITHOUT_FH)) { |
J.Bruce Fields | 42ca099 | 2006-10-04 02:16:20 -0700 | [diff] [blame] | 1064 | op->status = nfserr_nofilehandle; |
| 1065 | goto encode_op; |
| 1066 | } |
J.Bruce Fields | eeac294 | 2006-12-13 00:35:39 -0800 | [diff] [blame] | 1067 | } else if (cstate->current_fh.fh_export->ex_fslocs.migrated && |
| 1068 | !(opdesc->op_flags & ALLOWED_ON_ABSENT_FS)) { |
J.Bruce Fields | 42ca099 | 2006-10-04 02:16:20 -0700 | [diff] [blame] | 1069 | op->status = nfserr_moved; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1070 | goto encode_op; |
| 1071 | } |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1072 | |
| 1073 | if (opdesc->op_func) |
| 1074 | op->status = opdesc->op_func(rqstp, cstate, &op->u); |
| 1075 | else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1076 | BUG_ON(op->status == nfs_ok); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1077 | |
| 1078 | encode_op: |
Andy Adamson | 49557cc | 2009-07-23 19:02:16 -0400 | [diff] [blame] | 1079 | /* Only from SEQUENCE */ |
Andy Adamson | da3846a | 2009-04-03 08:28:22 +0300 | [diff] [blame] | 1080 | if (resp->cstate.status == nfserr_replay_cache) { |
| 1081 | dprintk("%s NFS4.1 replay from cache\n", __func__); |
Andy Adamson | abfabf8 | 2009-07-23 19:02:18 -0400 | [diff] [blame] | 1082 | status = op->status; |
Andy Adamson | da3846a | 2009-04-03 08:28:22 +0300 | [diff] [blame] | 1083 | goto out; |
| 1084 | } |
Al Viro | a90b061 | 2006-10-19 23:29:03 -0700 | [diff] [blame] | 1085 | if (op->status == nfserr_replay_me) { |
J.Bruce Fields | a4f1706a9 | 2006-12-13 00:35:28 -0800 | [diff] [blame] | 1086 | op->replay = &cstate->replay_owner->so_replay; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1087 | nfsd4_encode_replay(resp, op); |
| 1088 | status = op->status = op->replay->rp_status; |
| 1089 | } else { |
| 1090 | nfsd4_encode_operation(resp, op); |
| 1091 | status = op->status; |
| 1092 | } |
Benny Halevy | 0407717 | 2008-12-15 19:40:49 +0200 | [diff] [blame] | 1093 | |
| 1094 | dprintk("nfsv4 compound op %p opcnt %d #%d: %d: status %d\n", |
| 1095 | args->ops, args->opcnt, resp->opcnt, op->opnum, |
| 1096 | be32_to_cpu(status)); |
| 1097 | |
J.Bruce Fields | a4f1706a9 | 2006-12-13 00:35:28 -0800 | [diff] [blame] | 1098 | if (cstate->replay_owner) { |
| 1099 | nfs4_put_stateowner(cstate->replay_owner); |
| 1100 | cstate->replay_owner = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1101 | } |
NeilBrown | 7e06b7f | 2005-06-23 22:03:13 -0700 | [diff] [blame] | 1102 | /* XXX Ugh, we need to get rid of this kind of special case: */ |
| 1103 | if (op->opnum == OP_READ && op->u.read.rd_filp) |
| 1104 | fput(op->u.read.rd_filp); |
Shankar Anand | e2b2095 | 2006-07-10 04:45:44 -0700 | [diff] [blame] | 1105 | |
| 1106 | nfsd4_increment_op_stats(op->opnum); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1107 | } |
Andy Adamson | 2f42587 | 2009-04-03 08:27:32 +0300 | [diff] [blame] | 1108 | if (!rqstp->rq_usedeferral && status == nfserr_dropit) { |
| 1109 | dprintk("%s Dropit - send NFS4ERR_DELAY\n", __func__); |
| 1110 | status = nfserr_jukebox; |
| 1111 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1112 | |
Andy Adamson | da3846a | 2009-04-03 08:28:22 +0300 | [diff] [blame] | 1113 | resp->cstate.status = status; |
Andy Adamson | e354d57 | 2009-03-28 11:30:52 +0300 | [diff] [blame] | 1114 | fh_put(&resp->cstate.current_fh); |
| 1115 | fh_put(&resp->cstate.save_fh); |
| 1116 | BUG_ON(resp->cstate.replay_owner); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1117 | out: |
| 1118 | nfsd4_release_compoundargs(args); |
Andy Adamson | 2f42587 | 2009-04-03 08:27:32 +0300 | [diff] [blame] | 1119 | /* Reset deferral mechanism for RPC deferrals */ |
| 1120 | rqstp->rq_usedeferral = 1; |
J. Bruce Fields | 3b12cd9 | 2008-05-05 17:17:44 -0400 | [diff] [blame] | 1121 | dprintk("nfsv4 compound returned %d\n", ntohl(status)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1122 | return status; |
| 1123 | } |
| 1124 | |
Benny Halevy | 2076601 | 2009-03-28 11:32:05 +0300 | [diff] [blame] | 1125 | static struct nfsd4_operation nfsd4_ops[] = { |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1126 | [OP_ACCESS] = { |
| 1127 | .op_func = (nfsd4op_func)nfsd4_access, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1128 | .op_name = "OP_ACCESS", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1129 | }, |
| 1130 | [OP_CLOSE] = { |
| 1131 | .op_func = (nfsd4op_func)nfsd4_close, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1132 | .op_name = "OP_CLOSE", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1133 | }, |
| 1134 | [OP_COMMIT] = { |
| 1135 | .op_func = (nfsd4op_func)nfsd4_commit, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1136 | .op_name = "OP_COMMIT", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1137 | }, |
| 1138 | [OP_CREATE] = { |
| 1139 | .op_func = (nfsd4op_func)nfsd4_create, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1140 | .op_name = "OP_CREATE", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1141 | }, |
| 1142 | [OP_DELEGRETURN] = { |
| 1143 | .op_func = (nfsd4op_func)nfsd4_delegreturn, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1144 | .op_name = "OP_DELEGRETURN", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1145 | }, |
| 1146 | [OP_GETATTR] = { |
| 1147 | .op_func = (nfsd4op_func)nfsd4_getattr, |
J.Bruce Fields | eeac294 | 2006-12-13 00:35:39 -0800 | [diff] [blame] | 1148 | .op_flags = ALLOWED_ON_ABSENT_FS, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1149 | .op_name = "OP_GETATTR", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1150 | }, |
| 1151 | [OP_GETFH] = { |
| 1152 | .op_func = (nfsd4op_func)nfsd4_getfh, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1153 | .op_name = "OP_GETFH", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1154 | }, |
| 1155 | [OP_LINK] = { |
| 1156 | .op_func = (nfsd4op_func)nfsd4_link, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1157 | .op_name = "OP_LINK", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1158 | }, |
| 1159 | [OP_LOCK] = { |
| 1160 | .op_func = (nfsd4op_func)nfsd4_lock, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1161 | .op_name = "OP_LOCK", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1162 | }, |
| 1163 | [OP_LOCKT] = { |
| 1164 | .op_func = (nfsd4op_func)nfsd4_lockt, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1165 | .op_name = "OP_LOCKT", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1166 | }, |
| 1167 | [OP_LOCKU] = { |
| 1168 | .op_func = (nfsd4op_func)nfsd4_locku, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1169 | .op_name = "OP_LOCKU", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1170 | }, |
| 1171 | [OP_LOOKUP] = { |
| 1172 | .op_func = (nfsd4op_func)nfsd4_lookup, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1173 | .op_name = "OP_LOOKUP", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1174 | }, |
| 1175 | [OP_LOOKUPP] = { |
| 1176 | .op_func = (nfsd4op_func)nfsd4_lookupp, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1177 | .op_name = "OP_LOOKUPP", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1178 | }, |
| 1179 | [OP_NVERIFY] = { |
| 1180 | .op_func = (nfsd4op_func)nfsd4_nverify, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1181 | .op_name = "OP_NVERIFY", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1182 | }, |
| 1183 | [OP_OPEN] = { |
| 1184 | .op_func = (nfsd4op_func)nfsd4_open, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1185 | .op_name = "OP_OPEN", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1186 | }, |
| 1187 | [OP_OPEN_CONFIRM] = { |
| 1188 | .op_func = (nfsd4op_func)nfsd4_open_confirm, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1189 | .op_name = "OP_OPEN_CONFIRM", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1190 | }, |
| 1191 | [OP_OPEN_DOWNGRADE] = { |
| 1192 | .op_func = (nfsd4op_func)nfsd4_open_downgrade, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1193 | .op_name = "OP_OPEN_DOWNGRADE", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1194 | }, |
| 1195 | [OP_PUTFH] = { |
| 1196 | .op_func = (nfsd4op_func)nfsd4_putfh, |
J.Bruce Fields | 27d630e | 2006-12-13 00:35:43 -0800 | [diff] [blame] | 1197 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1198 | .op_name = "OP_PUTFH", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1199 | }, |
J.Bruce Fields | eeac294 | 2006-12-13 00:35:39 -0800 | [diff] [blame] | 1200 | [OP_PUTPUBFH] = { |
J. Bruce Fields | a1c8c4d | 2009-03-09 12:17:29 -0400 | [diff] [blame] | 1201 | .op_func = (nfsd4op_func)nfsd4_putrootfh, |
J.Bruce Fields | 27d630e | 2006-12-13 00:35:43 -0800 | [diff] [blame] | 1202 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1203 | .op_name = "OP_PUTPUBFH", |
J.Bruce Fields | eeac294 | 2006-12-13 00:35:39 -0800 | [diff] [blame] | 1204 | }, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1205 | [OP_PUTROOTFH] = { |
| 1206 | .op_func = (nfsd4op_func)nfsd4_putrootfh, |
J.Bruce Fields | 27d630e | 2006-12-13 00:35:43 -0800 | [diff] [blame] | 1207 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1208 | .op_name = "OP_PUTROOTFH", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1209 | }, |
| 1210 | [OP_READ] = { |
| 1211 | .op_func = (nfsd4op_func)nfsd4_read, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1212 | .op_name = "OP_READ", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1213 | }, |
| 1214 | [OP_READDIR] = { |
| 1215 | .op_func = (nfsd4op_func)nfsd4_readdir, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1216 | .op_name = "OP_READDIR", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1217 | }, |
| 1218 | [OP_READLINK] = { |
| 1219 | .op_func = (nfsd4op_func)nfsd4_readlink, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1220 | .op_name = "OP_READLINK", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1221 | }, |
| 1222 | [OP_REMOVE] = { |
| 1223 | .op_func = (nfsd4op_func)nfsd4_remove, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1224 | .op_name = "OP_REMOVE", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1225 | }, |
| 1226 | [OP_RENAME] = { |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1227 | .op_name = "OP_RENAME", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1228 | .op_func = (nfsd4op_func)nfsd4_rename, |
| 1229 | }, |
| 1230 | [OP_RENEW] = { |
| 1231 | .op_func = (nfsd4op_func)nfsd4_renew, |
J.Bruce Fields | 27d630e | 2006-12-13 00:35:43 -0800 | [diff] [blame] | 1232 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1233 | .op_name = "OP_RENEW", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1234 | }, |
| 1235 | [OP_RESTOREFH] = { |
| 1236 | .op_func = (nfsd4op_func)nfsd4_restorefh, |
J.Bruce Fields | 27d630e | 2006-12-13 00:35:43 -0800 | [diff] [blame] | 1237 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1238 | .op_name = "OP_RESTOREFH", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1239 | }, |
| 1240 | [OP_SAVEFH] = { |
| 1241 | .op_func = (nfsd4op_func)nfsd4_savefh, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1242 | .op_name = "OP_SAVEFH", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1243 | }, |
Andy Adamson | dcb488a3 | 2007-07-17 04:04:51 -0700 | [diff] [blame] | 1244 | [OP_SECINFO] = { |
| 1245 | .op_func = (nfsd4op_func)nfsd4_secinfo, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1246 | .op_name = "OP_SECINFO", |
Andy Adamson | dcb488a3 | 2007-07-17 04:04:51 -0700 | [diff] [blame] | 1247 | }, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1248 | [OP_SETATTR] = { |
| 1249 | .op_func = (nfsd4op_func)nfsd4_setattr, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1250 | .op_name = "OP_SETATTR", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1251 | }, |
| 1252 | [OP_SETCLIENTID] = { |
| 1253 | .op_func = (nfsd4op_func)nfsd4_setclientid, |
J.Bruce Fields | 27d630e | 2006-12-13 00:35:43 -0800 | [diff] [blame] | 1254 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1255 | .op_name = "OP_SETCLIENTID", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1256 | }, |
| 1257 | [OP_SETCLIENTID_CONFIRM] = { |
| 1258 | .op_func = (nfsd4op_func)nfsd4_setclientid_confirm, |
J.Bruce Fields | 27d630e | 2006-12-13 00:35:43 -0800 | [diff] [blame] | 1259 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1260 | .op_name = "OP_SETCLIENTID_CONFIRM", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1261 | }, |
| 1262 | [OP_VERIFY] = { |
| 1263 | .op_func = (nfsd4op_func)nfsd4_verify, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1264 | .op_name = "OP_VERIFY", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1265 | }, |
| 1266 | [OP_WRITE] = { |
| 1267 | .op_func = (nfsd4op_func)nfsd4_write, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1268 | .op_name = "OP_WRITE", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1269 | }, |
| 1270 | [OP_RELEASE_LOCKOWNER] = { |
| 1271 | .op_func = (nfsd4op_func)nfsd4_release_lockowner, |
J.Bruce Fields | 27d630e | 2006-12-13 00:35:43 -0800 | [diff] [blame] | 1272 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1273 | .op_name = "OP_RELEASE_LOCKOWNER", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1274 | }, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 1275 | |
| 1276 | /* NFSv4.1 operations */ |
| 1277 | [OP_EXCHANGE_ID] = { |
| 1278 | .op_func = (nfsd4op_func)nfsd4_exchange_id, |
Andy Adamson | f9bb94c | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1279 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 1280 | .op_name = "OP_EXCHANGE_ID", |
| 1281 | }, |
| 1282 | [OP_CREATE_SESSION] = { |
| 1283 | .op_func = (nfsd4op_func)nfsd4_create_session, |
Andy Adamson | f9bb94c | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1284 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 1285 | .op_name = "OP_CREATE_SESSION", |
| 1286 | }, |
| 1287 | [OP_DESTROY_SESSION] = { |
| 1288 | .op_func = (nfsd4op_func)nfsd4_destroy_session, |
Andy Adamson | f9bb94c | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1289 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 1290 | .op_name = "OP_DESTROY_SESSION", |
| 1291 | }, |
| 1292 | [OP_SEQUENCE] = { |
| 1293 | .op_func = (nfsd4op_func)nfsd4_sequence, |
Andy Adamson | f9bb94c | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1294 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 1295 | .op_name = "OP_SEQUENCE", |
| 1296 | }, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1297 | }; |
| 1298 | |
Adrian Bunk | f1c7f79 | 2008-08-08 19:26:42 +0300 | [diff] [blame] | 1299 | static const char *nfsd4_op_name(unsigned opnum) |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1300 | { |
| 1301 | if (opnum < ARRAY_SIZE(nfsd4_ops)) |
| 1302 | return nfsd4_ops[opnum].op_name; |
| 1303 | return "unknown_operation"; |
| 1304 | } |
| 1305 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1306 | #define nfsd4_voidres nfsd4_voidargs |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1307 | struct nfsd4_voidargs { int dummy; }; |
| 1308 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1309 | /* |
| 1310 | * TODO: At the present time, the NFSv4 server does not do XID caching |
| 1311 | * of requests. Implementing XID caching would not be a serious problem, |
| 1312 | * although it would require a mild change in interfaces since one |
| 1313 | * doesn't know whether an NFSv4 request is idempotent until after the |
| 1314 | * XDR decode. However, XID caching totally confuses pynfs (Peter |
| 1315 | * Astrand's regression testsuite for NFSv4 servers), which reuses |
| 1316 | * XID's liberally, so I've left it unimplemented until pynfs generates |
| 1317 | * better XID's. |
| 1318 | */ |
| 1319 | static struct svc_procedure nfsd_procedures4[2] = { |
Yu Zhiguo | 0a93a47 | 2009-05-19 14:09:54 +0800 | [diff] [blame] | 1320 | [NFSPROC4_NULL] = { |
| 1321 | .pc_func = (svc_procfunc) nfsd4_proc_null, |
| 1322 | .pc_encode = (kxdrproc_t) nfs4svc_encode_voidres, |
| 1323 | .pc_argsize = sizeof(struct nfsd4_voidargs), |
| 1324 | .pc_ressize = sizeof(struct nfsd4_voidres), |
| 1325 | .pc_cachetype = RC_NOCACHE, |
| 1326 | .pc_xdrressize = 1, |
| 1327 | }, |
| 1328 | [NFSPROC4_COMPOUND] = { |
| 1329 | .pc_func = (svc_procfunc) nfsd4_proc_compound, |
| 1330 | .pc_decode = (kxdrproc_t) nfs4svc_decode_compoundargs, |
| 1331 | .pc_encode = (kxdrproc_t) nfs4svc_encode_compoundres, |
| 1332 | .pc_argsize = sizeof(struct nfsd4_compoundargs), |
| 1333 | .pc_ressize = sizeof(struct nfsd4_compoundres), |
| 1334 | .pc_cachetype = RC_NOCACHE, |
| 1335 | .pc_xdrressize = NFSD_BUFSIZE/4, |
| 1336 | }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1337 | }; |
| 1338 | |
| 1339 | struct svc_version nfsd_version4 = { |
| 1340 | .vs_vers = 4, |
| 1341 | .vs_nproc = 2, |
| 1342 | .vs_proc = nfsd_procedures4, |
| 1343 | .vs_dispatch = nfsd_dispatch, |
| 1344 | .vs_xdrsize = NFS4_SVC_XDRSIZE, |
| 1345 | }; |
| 1346 | |
| 1347 | /* |
| 1348 | * Local variables: |
| 1349 | * c-basic-offset: 8 |
| 1350 | * End: |
| 1351 | */ |