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> |
Anna Schumaker | b0cb908 | 2014-11-07 14:44:27 -0500 | [diff] [blame] | 36 | #include <linux/falloc.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 37 | #include <linux/slab.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 39 | #include "idmap.h" |
Boaz Harrosh | 9a74af2 | 2009-12-03 20:30:56 +0200 | [diff] [blame] | 40 | #include "cache.h" |
| 41 | #include "xdr4.h" |
J. Bruce Fields | 0a3adad | 2009-11-04 18:12:35 -0500 | [diff] [blame] | 42 | #include "vfs.h" |
Tigran Mkrtchyan | 8b70484 | 2012-02-13 22:55:24 +0100 | [diff] [blame] | 43 | #include "current_stateid.h" |
Stanislav Kinsbursky | 3320fef19 | 2012-11-14 18:22:07 +0300 | [diff] [blame] | 44 | #include "netns.h" |
Christoph Hellwig | 4ac7249 | 2013-12-20 05:16:55 -0800 | [diff] [blame] | 45 | #include "acl.h" |
Christoph Hellwig | 9cf514c | 2014-05-05 13:11:59 +0200 | [diff] [blame] | 46 | #include "pnfs.h" |
Christoph Hellwig | 31ef83d | 2014-08-16 19:02:22 -0500 | [diff] [blame] | 47 | #include "trace.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 48 | |
David Quigley | 18032ca | 2013-05-02 13:19:10 -0400 | [diff] [blame] | 49 | #ifdef CONFIG_NFSD_V4_SECURITY_LABEL |
| 50 | #include <linux/security.h> |
| 51 | |
| 52 | static inline void |
| 53 | nfsd4_security_inode_setsecctx(struct svc_fh *resfh, struct xdr_netobj *label, u32 *bmval) |
| 54 | { |
David Howells | 2b0143b | 2015-03-17 22:25:59 +0000 | [diff] [blame] | 55 | struct inode *inode = d_inode(resfh->fh_dentry); |
David Quigley | 18032ca | 2013-05-02 13:19:10 -0400 | [diff] [blame] | 56 | int status; |
| 57 | |
Al Viro | 5955102 | 2016-01-22 15:40:57 -0500 | [diff] [blame] | 58 | inode_lock(inode); |
David Quigley | 18032ca | 2013-05-02 13:19:10 -0400 | [diff] [blame] | 59 | status = security_inode_setsecctx(resfh->fh_dentry, |
| 60 | label->data, label->len); |
Al Viro | 5955102 | 2016-01-22 15:40:57 -0500 | [diff] [blame] | 61 | inode_unlock(inode); |
David Quigley | 18032ca | 2013-05-02 13:19:10 -0400 | [diff] [blame] | 62 | |
| 63 | if (status) |
| 64 | /* |
| 65 | * XXX: We should really fail the whole open, but we may |
| 66 | * already have created a new file, so it may be too |
| 67 | * late. For now this seems the least of evils: |
| 68 | */ |
| 69 | bmval[2] &= ~FATTR4_WORD2_SECURITY_LABEL; |
| 70 | |
| 71 | return; |
| 72 | } |
| 73 | #else |
| 74 | static inline void |
| 75 | nfsd4_security_inode_setsecctx(struct svc_fh *resfh, struct xdr_netobj *label, u32 *bmval) |
| 76 | { } |
| 77 | #endif |
| 78 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 79 | #define NFSDDBG_FACILITY NFSDDBG_PROC |
| 80 | |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 81 | static u32 nfsd_attrmask[] = { |
| 82 | NFSD_WRITEABLE_ATTRS_WORD0, |
| 83 | NFSD_WRITEABLE_ATTRS_WORD1, |
| 84 | NFSD_WRITEABLE_ATTRS_WORD2 |
| 85 | }; |
| 86 | |
| 87 | static u32 nfsd41_ex_attrmask[] = { |
| 88 | NFSD_SUPPATTR_EXCLCREAT_WORD0, |
| 89 | NFSD_SUPPATTR_EXCLCREAT_WORD1, |
| 90 | NFSD_SUPPATTR_EXCLCREAT_WORD2 |
| 91 | }; |
| 92 | |
| 93 | static __be32 |
| 94 | check_attr_support(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 95 | u32 *bmval, u32 *writable) |
| 96 | { |
| 97 | struct dentry *dentry = cstate->current_fh.fh_dentry; |
J. Bruce Fields | 32ddd94 | 2017-01-03 12:30:11 -0500 | [diff] [blame] | 98 | struct svc_export *exp = cstate->current_fh.fh_export; |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 99 | |
J. Bruce Fields | 916d2d8 | 2016-10-18 14:18:40 -0400 | [diff] [blame] | 100 | if (!nfsd_attrs_supported(cstate->minorversion, bmval)) |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 101 | return nfserr_attrnotsupp; |
J. Bruce Fields | 916d2d8 | 2016-10-18 14:18:40 -0400 | [diff] [blame] | 102 | if ((bmval[0] & FATTR4_WORD0_ACL) && !IS_POSIXACL(d_inode(dentry))) |
| 103 | return nfserr_attrnotsupp; |
J. Bruce Fields | 32ddd94 | 2017-01-03 12:30:11 -0500 | [diff] [blame] | 104 | if ((bmval[2] & FATTR4_WORD2_SECURITY_LABEL) && |
| 105 | !(exp->ex_flags & NFSEXP_SECURITY_LABEL)) |
| 106 | return nfserr_attrnotsupp; |
J. Bruce Fields | 916d2d8 | 2016-10-18 14:18:40 -0400 | [diff] [blame] | 107 | if (writable && !bmval_is_subset(bmval, writable)) |
| 108 | return nfserr_inval; |
Andreas Gruenbacher | 47057ab | 2016-01-12 20:24:14 +0100 | [diff] [blame] | 109 | if (writable && (bmval[2] & FATTR4_WORD2_MODE_UMASK) && |
| 110 | (bmval[1] & FATTR4_WORD1_MODE)) |
| 111 | return nfserr_inval; |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 112 | return nfs_ok; |
| 113 | } |
| 114 | |
| 115 | static __be32 |
| 116 | nfsd4_check_open_attributes(struct svc_rqst *rqstp, |
| 117 | struct nfsd4_compound_state *cstate, struct nfsd4_open *open) |
| 118 | { |
| 119 | __be32 status = nfs_ok; |
| 120 | |
| 121 | if (open->op_create == NFS4_OPEN_CREATE) { |
| 122 | if (open->op_createmode == NFS4_CREATE_UNCHECKED |
| 123 | || open->op_createmode == NFS4_CREATE_GUARDED) |
| 124 | status = check_attr_support(rqstp, cstate, |
| 125 | open->op_bmval, nfsd_attrmask); |
| 126 | else if (open->op_createmode == NFS4_CREATE_EXCLUSIVE4_1) |
| 127 | status = check_attr_support(rqstp, cstate, |
| 128 | open->op_bmval, nfsd41_ex_attrmask); |
| 129 | } |
| 130 | |
| 131 | return status; |
| 132 | } |
| 133 | |
Yu Zhiguo | 9208faf | 2009-07-06 17:24:16 +0800 | [diff] [blame] | 134 | static int |
| 135 | is_create_with_attrs(struct nfsd4_open *open) |
| 136 | { |
| 137 | return open->op_create == NFS4_OPEN_CREATE |
| 138 | && (open->op_createmode == NFS4_CREATE_UNCHECKED |
| 139 | || open->op_createmode == NFS4_CREATE_GUARDED |
| 140 | || open->op_createmode == NFS4_CREATE_EXCLUSIVE4_1); |
| 141 | } |
| 142 | |
| 143 | /* |
| 144 | * if error occurs when setting the acl, just clear the acl bit |
| 145 | * in the returned attr bitmap. |
| 146 | */ |
| 147 | static void |
| 148 | do_set_nfs4_acl(struct svc_rqst *rqstp, struct svc_fh *fhp, |
| 149 | struct nfs4_acl *acl, u32 *bmval) |
| 150 | { |
| 151 | __be32 status; |
| 152 | |
| 153 | status = nfsd4_set_nfs4_acl(rqstp, fhp, acl); |
| 154 | if (status) |
| 155 | /* |
| 156 | * We should probably fail the whole open at this point, |
| 157 | * but we've already created the file, so it's too late; |
| 158 | * So this seems the least of evils: |
| 159 | */ |
| 160 | bmval[0] &= ~FATTR4_WORD0_ACL; |
| 161 | } |
| 162 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 163 | static inline void |
| 164 | fh_dup2(struct svc_fh *dst, struct svc_fh *src) |
| 165 | { |
| 166 | fh_put(dst); |
| 167 | dget(src->fh_dentry); |
| 168 | if (src->fh_export) |
Kinglong Mee | bf18f16 | 2014-06-10 22:06:44 +0800 | [diff] [blame] | 169 | exp_get(src->fh_export); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 170 | *dst = *src; |
| 171 | } |
| 172 | |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 173 | static __be32 |
J. Bruce Fields | dc730e1 | 2006-10-17 00:10:13 -0700 | [diff] [blame] | 174 | 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] | 175 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 176 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 177 | |
| 178 | if (open->op_truncate && |
| 179 | !(open->op_share_access & NFS4_SHARE_ACCESS_WRITE)) |
| 180 | return nfserr_inval; |
| 181 | |
J. Bruce Fields | a043226 | 2011-08-25 10:48:39 -0400 | [diff] [blame] | 182 | accmode |= NFSD_MAY_READ_IF_EXEC; |
| 183 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 184 | if (open->op_share_access & NFS4_SHARE_ACCESS_READ) |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 185 | accmode |= NFSD_MAY_READ; |
J. Bruce Fields | 9801d8a | 2006-10-17 00:10:14 -0700 | [diff] [blame] | 186 | if (open->op_share_access & NFS4_SHARE_ACCESS_WRITE) |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 187 | accmode |= (NFSD_MAY_WRITE | NFSD_MAY_TRUNC); |
J. Bruce Fields | 57ecb34 | 2009-12-01 19:42:57 -0500 | [diff] [blame] | 188 | if (open->op_share_deny & NFS4_SHARE_DENY_READ) |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 189 | accmode |= NFSD_MAY_WRITE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 190 | |
| 191 | status = fh_verify(rqstp, current_fh, S_IFREG, accmode); |
| 192 | |
| 193 | return status; |
| 194 | } |
| 195 | |
J. Bruce Fields | aadab6c | 2011-08-15 16:55:02 -0400 | [diff] [blame] | 196 | static __be32 nfsd_check_obj_isreg(struct svc_fh *fh) |
| 197 | { |
David Howells | 2b0143b | 2015-03-17 22:25:59 +0000 | [diff] [blame] | 198 | umode_t mode = d_inode(fh->fh_dentry)->i_mode; |
J. Bruce Fields | aadab6c | 2011-08-15 16:55:02 -0400 | [diff] [blame] | 199 | |
| 200 | if (S_ISREG(mode)) |
| 201 | return nfs_ok; |
| 202 | if (S_ISDIR(mode)) |
| 203 | return nfserr_isdir; |
| 204 | /* |
| 205 | * Using err_symlink as our catch-all case may look odd; but |
| 206 | * there's no other obvious error for this case in 4.0, and we |
| 207 | * happen to know that it will cause the linux v4 client to do |
| 208 | * the right thing on attempts to open something other than a |
| 209 | * regular file. |
| 210 | */ |
| 211 | return nfserr_symlink; |
| 212 | } |
| 213 | |
J. Bruce Fields | bbc9c36 | 2013-03-22 18:03:49 -0400 | [diff] [blame] | 214 | static void nfsd4_set_open_owner_reply_cache(struct nfsd4_compound_state *cstate, struct nfsd4_open *open, struct svc_fh *resfh) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 215 | { |
J. Bruce Fields | bbc9c36 | 2013-03-22 18:03:49 -0400 | [diff] [blame] | 216 | if (nfsd4_has_session(cstate)) |
| 217 | return; |
| 218 | fh_copy_shallow(&open->op_openowner->oo_owner.so_replay.rp_openfh, |
| 219 | &resfh->fh_handle); |
| 220 | } |
| 221 | |
| 222 | static __be32 |
J. Bruce Fields | c0e6bee | 2012-01-27 17:26:06 -0500 | [diff] [blame] | 223 | do_open_lookup(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_open *open, struct svc_fh **resfh) |
J. Bruce Fields | bbc9c36 | 2013-03-22 18:03:49 -0400 | [diff] [blame] | 224 | { |
| 225 | struct svc_fh *current_fh = &cstate->current_fh; |
Neil Brown | 7007c90 | 2012-12-07 15:40:55 -0500 | [diff] [blame] | 226 | int accmode; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 227 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 228 | |
J. Bruce Fields | c0e6bee | 2012-01-27 17:26:06 -0500 | [diff] [blame] | 229 | *resfh = kmalloc(sizeof(struct svc_fh), GFP_KERNEL); |
| 230 | if (!*resfh) |
J. Bruce Fields | 59deeb9 | 2012-01-27 16:49:55 -0500 | [diff] [blame] | 231 | return nfserr_jukebox; |
J. Bruce Fields | c0e6bee | 2012-01-27 17:26:06 -0500 | [diff] [blame] | 232 | fh_init(*resfh, NFS4_FHSIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 233 | open->op_truncate = 0; |
| 234 | |
| 235 | if (open->op_create) { |
Benny Halevy | 79fb54a | 2009-04-03 08:29:17 +0300 | [diff] [blame] | 236 | /* FIXME: check session persistence and pnfs flags. |
| 237 | * The nfsv4.1 spec requires the following semantics: |
| 238 | * |
| 239 | * Persistent | pNFS | Server REQUIRED | Client Allowed |
| 240 | * Reply Cache | server | | |
| 241 | * -------------+--------+-----------------+-------------------- |
| 242 | * no | no | EXCLUSIVE4_1 | EXCLUSIVE4_1 |
| 243 | * | | | (SHOULD) |
| 244 | * | | and EXCLUSIVE4 | or EXCLUSIVE4 |
| 245 | * | | | (SHOULD NOT) |
| 246 | * no | yes | EXCLUSIVE4_1 | EXCLUSIVE4_1 |
| 247 | * yes | no | GUARDED4 | GUARDED4 |
| 248 | * yes | yes | GUARDED4 | GUARDED4 |
| 249 | */ |
| 250 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 251 | /* |
| 252 | * Note: create modes (UNCHECKED,GUARDED...) are the same |
Mi Jinlong | ac6721a | 2011-04-20 17:06:25 +0800 | [diff] [blame] | 253 | * in NFSv4 as in v3 except EXCLUSIVE4_1. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 254 | */ |
Mi Jinlong | ac6721a | 2011-04-20 17:06:25 +0800 | [diff] [blame] | 255 | status = do_nfsd_create(rqstp, current_fh, open->op_fname.data, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 256 | open->op_fname.len, &open->op_iattr, |
J. Bruce Fields | c0e6bee | 2012-01-27 17:26:06 -0500 | [diff] [blame] | 257 | *resfh, open->op_createmode, |
Jeff Layton | 749997e | 2007-07-31 00:37:51 -0700 | [diff] [blame] | 258 | (u32 *)open->op_verf.data, |
J. Bruce Fields | 856121b | 2011-10-13 11:37:11 -0400 | [diff] [blame] | 259 | &open->op_truncate, &open->op_created); |
Jeff Layton | 749997e | 2007-07-31 00:37:51 -0700 | [diff] [blame] | 260 | |
David Quigley | 18032ca | 2013-05-02 13:19:10 -0400 | [diff] [blame] | 261 | if (!status && open->op_label.len) |
J. Bruce Fields | c0e6bee | 2012-01-27 17:26:06 -0500 | [diff] [blame] | 262 | nfsd4_security_inode_setsecctx(*resfh, &open->op_label, open->op_bmval); |
David Quigley | 18032ca | 2013-05-02 13:19:10 -0400 | [diff] [blame] | 263 | |
J. Bruce Fields | 99f8872 | 2009-02-02 15:12:27 -0500 | [diff] [blame] | 264 | /* |
Kinglong Mee | ead8fb8 | 2015-07-30 21:55:02 +0800 | [diff] [blame] | 265 | * Following rfc 3530 14.2.16, and rfc 5661 18.16.4 |
| 266 | * use the returned bitmask to indicate which attributes |
| 267 | * we used to store the verifier: |
Jeff Layton | 749997e | 2007-07-31 00:37:51 -0700 | [diff] [blame] | 268 | */ |
Kinglong Mee | ead8fb8 | 2015-07-30 21:55:02 +0800 | [diff] [blame] | 269 | if (nfsd_create_is_exclusive(open->op_createmode) && status == 0) |
| 270 | open->op_bmval[1] |= (FATTR4_WORD1_TIME_ACCESS | |
| 271 | FATTR4_WORD1_TIME_MODIFY); |
J. Bruce Fields | 4335723 | 2014-01-24 18:04:40 -0500 | [diff] [blame] | 272 | } else |
| 273 | /* |
| 274 | * Note this may exit with the parent still locked. |
| 275 | * We will hold the lock until nfsd4_open's final |
| 276 | * lookup, to prevent renames or unlinks until we've had |
| 277 | * a chance to an acquire a delegation if appropriate. |
| 278 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 279 | status = nfsd_lookup(rqstp, current_fh, |
J. Bruce Fields | c0e6bee | 2012-01-27 17:26:06 -0500 | [diff] [blame] | 280 | open->op_fname.data, open->op_fname.len, *resfh); |
J. Bruce Fields | af85852 | 2006-11-08 17:44:39 -0800 | [diff] [blame] | 281 | if (status) |
| 282 | goto out; |
J. Bruce Fields | c0e6bee | 2012-01-27 17:26:06 -0500 | [diff] [blame] | 283 | status = nfsd_check_obj_isreg(*resfh); |
J. Bruce Fields | 9dc4e6c | 2012-04-09 18:06:49 -0400 | [diff] [blame] | 284 | if (status) |
| 285 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 286 | |
Yu Zhiguo | 9208faf | 2009-07-06 17:24:16 +0800 | [diff] [blame] | 287 | if (is_create_with_attrs(open) && open->op_acl != NULL) |
J. Bruce Fields | c0e6bee | 2012-01-27 17:26:06 -0500 | [diff] [blame] | 288 | do_set_nfs4_acl(rqstp, *resfh, open->op_acl, open->op_bmval); |
Yu Zhiguo | 9208faf | 2009-07-06 17:24:16 +0800 | [diff] [blame] | 289 | |
J. Bruce Fields | c0e6bee | 2012-01-27 17:26:06 -0500 | [diff] [blame] | 290 | nfsd4_set_open_owner_reply_cache(cstate, open, *resfh); |
Neil Brown | 7007c90 | 2012-12-07 15:40:55 -0500 | [diff] [blame] | 291 | accmode = NFSD_MAY_NOP; |
J. Bruce Fields | 89f6c33 | 2013-06-19 15:47:37 -0400 | [diff] [blame] | 292 | if (open->op_created || |
| 293 | open->op_claim_type == NFS4_OPEN_CLAIM_DELEGATE_CUR) |
Neil Brown | 7007c90 | 2012-12-07 15:40:55 -0500 | [diff] [blame] | 294 | accmode |= NFSD_MAY_OWNER_OVERRIDE; |
J. Bruce Fields | c0e6bee | 2012-01-27 17:26:06 -0500 | [diff] [blame] | 295 | status = do_open_permission(rqstp, *resfh, open, accmode); |
J. Bruce Fields | 41fd1e4 | 2012-01-27 16:26:02 -0500 | [diff] [blame] | 296 | set_change_info(&open->op_cinfo, current_fh); |
J. Bruce Fields | af85852 | 2006-11-08 17:44:39 -0800 | [diff] [blame] | 297 | out: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 298 | return status; |
| 299 | } |
| 300 | |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 301 | static __be32 |
J. Bruce Fields | bbc9c36 | 2013-03-22 18:03:49 -0400 | [diff] [blame] | 302 | do_open_fhandle(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_open *open) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 303 | { |
J. Bruce Fields | bbc9c36 | 2013-03-22 18:03:49 -0400 | [diff] [blame] | 304 | struct svc_fh *current_fh = &cstate->current_fh; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 305 | __be32 status; |
J. Bruce Fields | 9f415eb | 2013-05-03 16:09:09 -0400 | [diff] [blame] | 306 | int accmode = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 307 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 308 | /* We don't know the target directory, and therefore can not |
| 309 | * set the change info |
| 310 | */ |
| 311 | |
| 312 | memset(&open->op_cinfo, 0, sizeof(struct nfsd4_change_info)); |
| 313 | |
J. Bruce Fields | bbc9c36 | 2013-03-22 18:03:49 -0400 | [diff] [blame] | 314 | nfsd4_set_open_owner_reply_cache(cstate, open, current_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 315 | |
| 316 | open->op_truncate = (open->op_iattr.ia_valid & ATTR_SIZE) && |
| 317 | (open->op_iattr.ia_size == 0); |
J. Bruce Fields | 9f415eb | 2013-05-03 16:09:09 -0400 | [diff] [blame] | 318 | /* |
| 319 | * In the delegation case, the client is telling us about an |
| 320 | * open that it *already* performed locally, some time ago. We |
| 321 | * should let it succeed now if possible. |
| 322 | * |
| 323 | * In the case of a CLAIM_FH open, on the other hand, the client |
| 324 | * may be counting on us to enforce permissions (the Linux 4.1 |
| 325 | * client uses this for normal opens, for example). |
| 326 | */ |
| 327 | if (open->op_claim_type == NFS4_OPEN_CLAIM_DELEG_CUR_FH) |
| 328 | accmode = NFSD_MAY_OWNER_OVERRIDE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 329 | |
J. Bruce Fields | 9f415eb | 2013-05-03 16:09:09 -0400 | [diff] [blame] | 330 | status = do_open_permission(rqstp, current_fh, open, accmode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 331 | |
| 332 | return status; |
| 333 | } |
| 334 | |
Andy Adamson | 60adfc5 | 2009-04-03 08:28:50 +0300 | [diff] [blame] | 335 | static void |
| 336 | copy_clientid(clientid_t *clid, struct nfsd4_session *session) |
| 337 | { |
| 338 | struct nfsd4_sessionid *sid = |
| 339 | (struct nfsd4_sessionid *)session->se_sessionid.data; |
| 340 | |
| 341 | clid->cl_boot = sid->clientid.cl_boot; |
| 342 | clid->cl_id = sid->clientid.cl_id; |
| 343 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 344 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 345 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 346 | nfsd4_open(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 347 | union nfsd4_op_u *u) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 348 | { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 349 | struct nfsd4_open *open = &u->open; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 350 | __be32 status; |
J. Bruce Fields | c0e6bee | 2012-01-27 17:26:06 -0500 | [diff] [blame] | 351 | struct svc_fh *resfh = NULL; |
Stanislav Kinsbursky | 3320fef19 | 2012-11-14 18:22:07 +0300 | [diff] [blame] | 352 | struct net *net = SVC_NET(rqstp); |
| 353 | struct nfsd_net *nn = net_generic(net, nfsd_net_id); |
Andy Adamson | 6668958 | 2009-04-03 08:28:45 +0300 | [diff] [blame] | 354 | |
J. Bruce Fields | fe0750e | 2011-07-30 23:33:59 -0400 | [diff] [blame] | 355 | dprintk("NFSD: nfsd4_open filename %.*s op_openowner %p\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 356 | (int)open->op_fname.len, open->op_fname.data, |
J. Bruce Fields | fe0750e | 2011-07-30 23:33:59 -0400 | [diff] [blame] | 357 | open->op_openowner); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 358 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 359 | /* This check required by spec. */ |
| 360 | if (open->op_create && open->op_claim_type != NFS4_OPEN_CLAIM_NULL) |
| 361 | return nfserr_inval; |
| 362 | |
J. Bruce Fields | 856121b | 2011-10-13 11:37:11 -0400 | [diff] [blame] | 363 | open->op_created = 0; |
Mi Jinlong | ab1350b | 2011-07-14 15:06:26 +0800 | [diff] [blame] | 364 | /* |
| 365 | * RFC5661 18.51.3 |
| 366 | * Before RECLAIM_COMPLETE done, server should deny new lock |
| 367 | */ |
| 368 | if (nfsd4_has_session(cstate) && |
Jeff Layton | a52d726 | 2012-03-21 09:52:02 -0400 | [diff] [blame] | 369 | !test_bit(NFSD4_CLIENT_RECLAIM_COMPLETE, |
| 370 | &cstate->session->se_client->cl_flags) && |
Mi Jinlong | ab1350b | 2011-07-14 15:06:26 +0800 | [diff] [blame] | 371 | open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS) |
| 372 | return nfserr_grace; |
| 373 | |
Andy Adamson | 60adfc5 | 2009-04-03 08:28:50 +0300 | [diff] [blame] | 374 | if (nfsd4_has_session(cstate)) |
| 375 | copy_clientid(&open->op_clientid, cstate->session); |
| 376 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 377 | /* check seqid for replay. set nfs4_owner */ |
Kinglong Mee | 6cd2266 | 2015-07-13 17:32:05 +0800 | [diff] [blame] | 378 | status = nfsd4_process_open1(cstate, open, nn); |
Al Viro | a90b061 | 2006-10-19 23:29:03 -0700 | [diff] [blame] | 379 | if (status == nfserr_replay_me) { |
J. Bruce Fields | fe0750e | 2011-07-30 23:33:59 -0400 | [diff] [blame] | 380 | struct nfs4_replay *rp = &open->op_openowner->oo_owner.so_replay; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 381 | fh_put(&cstate->current_fh); |
J. Bruce Fields | a4773c0 | 2009-02-02 17:23:10 -0500 | [diff] [blame] | 382 | fh_copy_shallow(&cstate->current_fh.fh_handle, |
| 383 | &rp->rp_openfh); |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 384 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 385 | if (status) |
| 386 | dprintk("nfsd4_open: replay failed" |
| 387 | " restoring previous filehandle\n"); |
| 388 | else |
Al Viro | a90b061 | 2006-10-19 23:29:03 -0700 | [diff] [blame] | 389 | status = nfserr_replay_me; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 390 | } |
| 391 | if (status) |
| 392 | goto out; |
J. Bruce Fields | 9d313b1 | 2013-02-28 12:51:49 -0800 | [diff] [blame] | 393 | if (open->op_xdr_error) { |
| 394 | status = open->op_xdr_error; |
| 395 | goto out; |
| 396 | } |
J. Bruce Fields | fb553c0 | 2006-01-18 17:43:36 -0800 | [diff] [blame] | 397 | |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 398 | status = nfsd4_check_open_attributes(rqstp, cstate, open); |
| 399 | if (status) |
| 400 | goto out; |
| 401 | |
J. Bruce Fields | fb553c0 | 2006-01-18 17:43:36 -0800 | [diff] [blame] | 402 | /* Openowner is now set, so sequence id will get bumped. Now we need |
| 403 | * these checks before we do any creates: */ |
J. Bruce Fields | cbd0d51 | 2006-02-07 12:58:32 -0800 | [diff] [blame] | 404 | status = nfserr_grace; |
J. Bruce Fields | c87fb4a | 2015-08-06 12:47:02 -0400 | [diff] [blame] | 405 | if (opens_in_grace(net) && open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS) |
J. Bruce Fields | cbd0d51 | 2006-02-07 12:58:32 -0800 | [diff] [blame] | 406 | goto out; |
| 407 | status = nfserr_no_grace; |
J. Bruce Fields | c87fb4a | 2015-08-06 12:47:02 -0400 | [diff] [blame] | 408 | if (!opens_in_grace(net) && open->op_claim_type == NFS4_OPEN_CLAIM_PREVIOUS) |
J. Bruce Fields | cbd0d51 | 2006-02-07 12:58:32 -0800 | [diff] [blame] | 409 | goto out; |
J. Bruce Fields | fb553c0 | 2006-01-18 17:43:36 -0800 | [diff] [blame] | 410 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 411 | switch (open->op_claim_type) { |
NeilBrown | 0dd3c19 | 2005-06-23 22:02:56 -0700 | [diff] [blame] | 412 | case NFS4_OPEN_CLAIM_DELEGATE_CUR: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 413 | case NFS4_OPEN_CLAIM_NULL: |
J. Bruce Fields | c0e6bee | 2012-01-27 17:26:06 -0500 | [diff] [blame] | 414 | status = do_open_lookup(rqstp, cstate, open, &resfh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 415 | if (status) |
| 416 | goto out; |
| 417 | break; |
| 418 | case NFS4_OPEN_CLAIM_PREVIOUS: |
Stanislav Kinsbursky | 3320fef19 | 2012-11-14 18:22:07 +0300 | [diff] [blame] | 419 | status = nfs4_check_open_reclaim(&open->op_clientid, |
Trond Myklebust | 0fe492d | 2014-06-30 11:48:47 -0400 | [diff] [blame] | 420 | cstate, nn); |
Mi Jinlong | 0cf99b9 | 2011-11-23 10:48:40 +0800 | [diff] [blame] | 421 | if (status) |
| 422 | goto out; |
Jeff Layton | ba5378b | 2014-05-30 09:09:28 -0400 | [diff] [blame] | 423 | open->op_openowner->oo_flags |= NFS4_OO_CONFIRMED; |
J. Bruce Fields | 8b289b2 | 2011-10-19 11:52:12 -0400 | [diff] [blame] | 424 | case NFS4_OPEN_CLAIM_FH: |
| 425 | case NFS4_OPEN_CLAIM_DELEG_CUR_FH: |
J. Bruce Fields | bbc9c36 | 2013-03-22 18:03:49 -0400 | [diff] [blame] | 426 | status = do_open_fhandle(rqstp, cstate, open); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 427 | if (status) |
| 428 | goto out; |
J. Bruce Fields | c0e6bee | 2012-01-27 17:26:06 -0500 | [diff] [blame] | 429 | resfh = &cstate->current_fh; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 430 | break; |
J. Bruce Fields | 8b289b2 | 2011-10-19 11:52:12 -0400 | [diff] [blame] | 431 | case NFS4_OPEN_CLAIM_DELEG_PREV_FH: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 432 | case NFS4_OPEN_CLAIM_DELEGATE_PREV: |
J. Bruce Fields | 2fdada0 | 2007-07-27 16:10:37 -0400 | [diff] [blame] | 433 | dprintk("NFSD: unsupported OPEN claim type %d\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 434 | open->op_claim_type); |
| 435 | status = nfserr_notsupp; |
| 436 | goto out; |
| 437 | default: |
J. Bruce Fields | 2fdada0 | 2007-07-27 16:10:37 -0400 | [diff] [blame] | 438 | dprintk("NFSD: Invalid OPEN claim type %d\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 439 | open->op_claim_type); |
| 440 | status = nfserr_inval; |
| 441 | goto out; |
| 442 | } |
| 443 | /* |
| 444 | * nfsd4_process_open2() does the actual opening of the file. If |
| 445 | * successful, it (1) truncates the file if open->op_truncate was |
| 446 | * set, (2) sets open->op_stateid, (3) sets open->op_delegation. |
| 447 | */ |
J. Bruce Fields | c0e6bee | 2012-01-27 17:26:06 -0500 | [diff] [blame] | 448 | status = nfsd4_process_open2(rqstp, resfh, open); |
Jeff Layton | b3fbfe0 | 2014-07-29 21:37:44 -0400 | [diff] [blame] | 449 | WARN(status && open->op_created, |
| 450 | "nfsd4_process_open2 failed to open newly-created file! status=%u\n", |
| 451 | be32_to_cpu(status)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 452 | out: |
J. Bruce Fields | c0e6bee | 2012-01-27 17:26:06 -0500 | [diff] [blame] | 453 | if (resfh && resfh != &cstate->current_fh) { |
| 454 | fh_dup2(&cstate->current_fh, resfh); |
| 455 | fh_put(resfh); |
| 456 | kfree(resfh); |
| 457 | } |
Jeff Layton | 4229789 | 2015-03-23 10:53:44 -0400 | [diff] [blame] | 458 | nfsd4_cleanup_open_state(cstate, open); |
J. Bruce Fields | 9411b1d | 2013-04-01 16:37:12 -0400 | [diff] [blame] | 459 | nfsd4_bump_seqid(cstate, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 460 | return status; |
| 461 | } |
| 462 | |
| 463 | /* |
J. Bruce Fields | 9d313b1 | 2013-02-28 12:51:49 -0800 | [diff] [blame] | 464 | * OPEN is the only seqid-mutating operation whose decoding can fail |
| 465 | * with a seqid-mutating error (specifically, decoding of user names in |
| 466 | * the attributes). Therefore we have to do some processing to look up |
| 467 | * the stateowner so that we can bump the seqid. |
| 468 | */ |
| 469 | static __be32 nfsd4_open_omfg(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_op *op) |
| 470 | { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 471 | struct nfsd4_open *open = &op->u.open; |
J. Bruce Fields | 9d313b1 | 2013-02-28 12:51:49 -0800 | [diff] [blame] | 472 | |
| 473 | if (!seqid_mutating_err(ntohl(op->status))) |
| 474 | return op->status; |
| 475 | if (nfsd4_has_session(cstate)) |
| 476 | return op->status; |
| 477 | open->op_xdr_error = op->status; |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 478 | return nfsd4_open(rqstp, cstate, &op->u); |
J. Bruce Fields | 9d313b1 | 2013-02-28 12:51:49 -0800 | [diff] [blame] | 479 | } |
| 480 | |
| 481 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 482 | * filehandle-manipulating ops. |
| 483 | */ |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 484 | static __be32 |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 485 | nfsd4_getfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 486 | union nfsd4_op_u *u) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 487 | { |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 488 | if (!cstate->current_fh.fh_dentry) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 489 | return nfserr_nofilehandle; |
| 490 | |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 491 | u->getfh = &cstate->current_fh; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 492 | return nfs_ok; |
| 493 | } |
| 494 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 495 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 496 | nfsd4_putfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 497 | union nfsd4_op_u *u) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 498 | { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 499 | struct nfsd4_putfh *putfh = &u->putfh; |
| 500 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 501 | fh_put(&cstate->current_fh); |
| 502 | cstate->current_fh.fh_handle.fh_size = putfh->pf_fhlen; |
| 503 | memcpy(&cstate->current_fh.fh_handle.fh_base, putfh->pf_fhval, |
| 504 | putfh->pf_fhlen); |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 505 | return fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_BYPASS_GSS); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 506 | } |
| 507 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 508 | static __be32 |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 509 | nfsd4_putrootfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 510 | union nfsd4_op_u *u) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 511 | { |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 512 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 513 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 514 | fh_put(&cstate->current_fh); |
J. Bruce Fields | df547ef | 2007-07-17 04:04:43 -0700 | [diff] [blame] | 515 | status = exp_pseudoroot(rqstp, &cstate->current_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 516 | return status; |
| 517 | } |
| 518 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 519 | static __be32 |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 520 | nfsd4_restorefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 521 | union nfsd4_op_u *u) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 522 | { |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 523 | if (!cstate->save_fh.fh_dentry) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 524 | return nfserr_restorefh; |
| 525 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 526 | fh_dup2(&cstate->current_fh, &cstate->save_fh); |
Tigran Mkrtchyan | 37c593c | 2012-02-13 22:55:32 +0100 | [diff] [blame] | 527 | if (HAS_STATE_ID(cstate, SAVED_STATE_ID_FLAG)) { |
| 528 | memcpy(&cstate->current_stateid, &cstate->save_stateid, sizeof(stateid_t)); |
| 529 | SET_STATE_ID(cstate, CURRENT_STATE_ID_FLAG); |
| 530 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 531 | return nfs_ok; |
| 532 | } |
| 533 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 534 | static __be32 |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 535 | nfsd4_savefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 536 | union nfsd4_op_u *u) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 537 | { |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 538 | if (!cstate->current_fh.fh_dentry) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 539 | return nfserr_nofilehandle; |
| 540 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 541 | fh_dup2(&cstate->save_fh, &cstate->current_fh); |
Tigran Mkrtchyan | 37c593c | 2012-02-13 22:55:32 +0100 | [diff] [blame] | 542 | if (HAS_STATE_ID(cstate, CURRENT_STATE_ID_FLAG)) { |
| 543 | memcpy(&cstate->save_stateid, &cstate->current_stateid, sizeof(stateid_t)); |
| 544 | SET_STATE_ID(cstate, SAVED_STATE_ID_FLAG); |
| 545 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 546 | return nfs_ok; |
| 547 | } |
| 548 | |
| 549 | /* |
| 550 | * misc nfsv4 ops |
| 551 | */ |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 552 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 553 | nfsd4_access(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 554 | union nfsd4_op_u *u) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 555 | { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 556 | struct nfsd4_access *access = &u->access; |
| 557 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 558 | if (access->ac_req_access & ~NFS3_ACCESS_FULL) |
| 559 | return nfserr_inval; |
| 560 | |
| 561 | access->ac_resp_access = access->ac_req_access; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 562 | return nfsd_access(rqstp, &cstate->current_fh, &access->ac_resp_access, |
| 563 | &access->ac_supported); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 564 | } |
| 565 | |
Stanislav Kinsbursky | b9c0ef8 | 2012-12-06 14:23:19 +0300 | [diff] [blame] | 566 | static void gen_boot_verifier(nfs4_verifier *verifier, struct net *net) |
Chuck Lever | ab4684d | 2012-03-02 17:13:50 -0500 | [diff] [blame] | 567 | { |
| 568 | __be32 verf[2]; |
Stanislav Kinsbursky | b9c0ef8 | 2012-12-06 14:23:19 +0300 | [diff] [blame] | 569 | struct nfsd_net *nn = net_generic(net, nfsd_net_id); |
Chuck Lever | ab4684d | 2012-03-02 17:13:50 -0500 | [diff] [blame] | 570 | |
Jeff Layton | f419992 | 2014-06-17 07:44:11 -0400 | [diff] [blame] | 571 | /* |
| 572 | * This is opaque to client, so no need to byte-swap. Use |
| 573 | * __force to keep sparse happy |
| 574 | */ |
| 575 | verf[0] = (__force __be32)nn->nfssvc_boot.tv_sec; |
| 576 | verf[1] = (__force __be32)nn->nfssvc_boot.tv_usec; |
Chuck Lever | ab4684d | 2012-03-02 17:13:50 -0500 | [diff] [blame] | 577 | memcpy(verifier->data, verf, sizeof(verifier->data)); |
| 578 | } |
| 579 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 580 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 581 | nfsd4_commit(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 582 | union nfsd4_op_u *u) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 583 | { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 584 | struct nfsd4_commit *commit = &u->commit; |
| 585 | |
Stanislav Kinsbursky | b9c0ef8 | 2012-12-06 14:23:19 +0300 | [diff] [blame] | 586 | gen_boot_verifier(&commit->co_verf, SVC_NET(rqstp)); |
J. Bruce Fields | 75c096f | 2011-08-15 18:39:32 -0400 | [diff] [blame] | 587 | return nfsd_commit(rqstp, &cstate->current_fh, commit->co_offset, |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 588 | commit->co_count); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 589 | } |
| 590 | |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 591 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 592 | nfsd4_create(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 593 | union nfsd4_op_u *u) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 594 | { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 595 | struct nfsd4_create *create = &u->create; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 596 | struct svc_fh resfh; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 597 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 598 | dev_t rdev; |
| 599 | |
| 600 | fh_init(&resfh, NFS4_FHSIZE); |
| 601 | |
J. Bruce Fields | fa08139 | 2016-07-21 16:00:12 -0400 | [diff] [blame] | 602 | status = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, NFSD_MAY_NOP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 603 | if (status) |
| 604 | return status; |
| 605 | |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 606 | status = check_attr_support(rqstp, cstate, create->cr_bmval, |
| 607 | nfsd_attrmask); |
| 608 | if (status) |
| 609 | return status; |
| 610 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 611 | switch (create->cr_type) { |
| 612 | case NF4LNK: |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 613 | status = nfsd_symlink(rqstp, &cstate->current_fh, |
| 614 | create->cr_name, create->cr_namelen, |
Kinglong Mee | 1e444f5 | 2014-07-01 17:48:02 +0800 | [diff] [blame] | 615 | create->cr_data, &resfh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 616 | break; |
| 617 | |
| 618 | case NF4BLK: |
| 619 | rdev = MKDEV(create->cr_specdata1, create->cr_specdata2); |
| 620 | if (MAJOR(rdev) != create->cr_specdata1 || |
| 621 | MINOR(rdev) != create->cr_specdata2) |
| 622 | return nfserr_inval; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 623 | status = nfsd_create(rqstp, &cstate->current_fh, |
| 624 | create->cr_name, create->cr_namelen, |
| 625 | &create->cr_iattr, S_IFBLK, rdev, &resfh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 626 | break; |
| 627 | |
| 628 | case NF4CHR: |
| 629 | rdev = MKDEV(create->cr_specdata1, create->cr_specdata2); |
| 630 | if (MAJOR(rdev) != create->cr_specdata1 || |
| 631 | MINOR(rdev) != create->cr_specdata2) |
| 632 | return nfserr_inval; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 633 | status = nfsd_create(rqstp, &cstate->current_fh, |
| 634 | create->cr_name, create->cr_namelen, |
| 635 | &create->cr_iattr,S_IFCHR, rdev, &resfh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 636 | break; |
| 637 | |
| 638 | case NF4SOCK: |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 639 | status = nfsd_create(rqstp, &cstate->current_fh, |
| 640 | create->cr_name, create->cr_namelen, |
| 641 | &create->cr_iattr, S_IFSOCK, 0, &resfh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 642 | break; |
| 643 | |
| 644 | case NF4FIFO: |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 645 | status = nfsd_create(rqstp, &cstate->current_fh, |
| 646 | create->cr_name, create->cr_namelen, |
| 647 | &create->cr_iattr, S_IFIFO, 0, &resfh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 648 | break; |
| 649 | |
| 650 | case NF4DIR: |
| 651 | create->cr_iattr.ia_valid &= ~ATTR_SIZE; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 652 | status = nfsd_create(rqstp, &cstate->current_fh, |
| 653 | create->cr_name, create->cr_namelen, |
| 654 | &create->cr_iattr, S_IFDIR, 0, &resfh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 655 | break; |
| 656 | |
| 657 | default: |
| 658 | status = nfserr_badtype; |
| 659 | } |
| 660 | |
Yu Zhiguo | 9208faf | 2009-07-06 17:24:16 +0800 | [diff] [blame] | 661 | if (status) |
| 662 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 663 | |
David Quigley | 18032ca | 2013-05-02 13:19:10 -0400 | [diff] [blame] | 664 | if (create->cr_label.len) |
| 665 | nfsd4_security_inode_setsecctx(&resfh, &create->cr_label, create->cr_bmval); |
| 666 | |
Yu Zhiguo | 9208faf | 2009-07-06 17:24:16 +0800 | [diff] [blame] | 667 | if (create->cr_acl != NULL) |
| 668 | do_set_nfs4_acl(rqstp, &resfh, create->cr_acl, |
| 669 | create->cr_bmval); |
| 670 | |
| 671 | fh_unlock(&cstate->current_fh); |
| 672 | set_change_info(&create->cr_cinfo, &cstate->current_fh); |
| 673 | fh_dup2(&cstate->current_fh, &resfh); |
| 674 | out: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 675 | fh_put(&resfh); |
| 676 | return status; |
| 677 | } |
| 678 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 679 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 680 | nfsd4_getattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 681 | union nfsd4_op_u *u) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 682 | { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 683 | struct nfsd4_getattr *getattr = &u->getattr; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 684 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 685 | |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 686 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 687 | if (status) |
| 688 | return status; |
| 689 | |
| 690 | if (getattr->ga_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1) |
| 691 | return nfserr_inval; |
| 692 | |
J. Bruce Fields | 916d2d8 | 2016-10-18 14:18:40 -0400 | [diff] [blame] | 693 | getattr->ga_bmval[0] &= nfsd_suppattrs[cstate->minorversion][0]; |
| 694 | getattr->ga_bmval[1] &= nfsd_suppattrs[cstate->minorversion][1]; |
| 695 | getattr->ga_bmval[2] &= nfsd_suppattrs[cstate->minorversion][2]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 696 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 697 | getattr->ga_fhp = &cstate->current_fh; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 698 | return nfs_ok; |
| 699 | } |
| 700 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 701 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 702 | nfsd4_link(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 703 | union nfsd4_op_u *u) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 704 | { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 705 | struct nfsd4_link *link = &u->link; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 706 | __be32 status = nfserr_nofilehandle; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 707 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 708 | if (!cstate->save_fh.fh_dentry) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 709 | return status; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 710 | status = nfsd_link(rqstp, &cstate->current_fh, |
| 711 | link->li_name, link->li_namelen, &cstate->save_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 712 | if (!status) |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 713 | set_change_info(&link->li_cinfo, &cstate->current_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 714 | return status; |
| 715 | } |
| 716 | |
J. Bruce Fields | 0ff7ab4 | 2010-12-16 10:06:27 -0500 | [diff] [blame] | 717 | 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] | 718 | { |
| 719 | struct svc_fh tmp_fh; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 720 | __be32 ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 721 | |
| 722 | fh_init(&tmp_fh, NFS4_FHSIZE); |
J. Bruce Fields | df547ef | 2007-07-17 04:04:43 -0700 | [diff] [blame] | 723 | ret = exp_pseudoroot(rqstp, &tmp_fh); |
| 724 | if (ret) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 725 | return ret; |
J. Bruce Fields | 0ff7ab4 | 2010-12-16 10:06:27 -0500 | [diff] [blame] | 726 | if (tmp_fh.fh_dentry == fh->fh_dentry) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 727 | fh_put(&tmp_fh); |
| 728 | return nfserr_noent; |
| 729 | } |
| 730 | fh_put(&tmp_fh); |
J. Bruce Fields | 0ff7ab4 | 2010-12-16 10:06:27 -0500 | [diff] [blame] | 731 | return nfsd_lookup(rqstp, fh, "..", 2, fh); |
| 732 | } |
| 733 | |
| 734 | static __be32 |
| 735 | nfsd4_lookupp(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 736 | union nfsd4_op_u *u) |
J. Bruce Fields | 0ff7ab4 | 2010-12-16 10:06:27 -0500 | [diff] [blame] | 737 | { |
| 738 | return nfsd4_do_lookupp(rqstp, &cstate->current_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 739 | } |
| 740 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 741 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 742 | nfsd4_lookup(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 743 | union nfsd4_op_u *u) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 744 | { |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 745 | return nfsd_lookup(rqstp, &cstate->current_fh, |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 746 | u->lookup.lo_name, u->lookup.lo_len, |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 747 | &cstate->current_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 748 | } |
| 749 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 750 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 751 | nfsd4_read(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 752 | union nfsd4_op_u *u) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 753 | { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 754 | struct nfsd4_read *read = &u->read; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 755 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 756 | |
NeilBrown | 7e06b7f | 2005-06-23 22:03:13 -0700 | [diff] [blame] | 757 | read->rd_filp = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 758 | if (read->rd_offset >= OFFSET_MAX) |
| 759 | return nfserr_inval; |
| 760 | |
J. Bruce Fields | 9b3234b | 2012-12-04 18:03:46 -0500 | [diff] [blame] | 761 | /* |
| 762 | * If we do a zero copy read, then a client will see read data |
| 763 | * that reflects the state of the file *after* performing the |
| 764 | * following compound. |
| 765 | * |
| 766 | * To ensure proper ordering, we therefore turn off zero copy if |
| 767 | * the client wants us to do more in this compound: |
| 768 | */ |
| 769 | if (!nfsd4_last_compound_op(rqstp)) |
Jeff Layton | 779fb0f | 2014-11-19 07:51:18 -0500 | [diff] [blame] | 770 | clear_bit(RQ_SPLICE_OK, &rqstp->rq_flags); |
J. Bruce Fields | 9b3234b | 2012-12-04 18:03:46 -0500 | [diff] [blame] | 771 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 772 | /* check stateid */ |
Anna Schumaker | aa0d6ae | 2015-12-03 12:59:51 +0100 | [diff] [blame] | 773 | status = nfs4_preprocess_stateid_op(rqstp, cstate, &cstate->current_fh, |
| 774 | &read->rd_stateid, RD_STATE, |
| 775 | &read->rd_filp, &read->rd_tmp_file); |
Christoph Hellwig | af90f70 | 2015-06-18 16:45:00 +0200 | [diff] [blame] | 776 | if (status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 777 | dprintk("NFSD: nfsd4_read: couldn't process stateid!\n"); |
| 778 | goto out; |
| 779 | } |
| 780 | status = nfs_ok; |
| 781 | out: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 782 | read->rd_rqstp = rqstp; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 783 | read->rd_fhp = &cstate->current_fh; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 784 | return status; |
| 785 | } |
| 786 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 787 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 788 | nfsd4_readdir(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 789 | union nfsd4_op_u *u) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 790 | { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 791 | struct nfsd4_readdir *readdir = &u->readdir; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 792 | u64 cookie = readdir->rd_cookie; |
| 793 | static const nfs4_verifier zeroverf; |
| 794 | |
| 795 | /* no need to check permission - this will be done in nfsd_readdir() */ |
| 796 | |
| 797 | if (readdir->rd_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1) |
| 798 | return nfserr_inval; |
| 799 | |
J. Bruce Fields | 916d2d8 | 2016-10-18 14:18:40 -0400 | [diff] [blame] | 800 | readdir->rd_bmval[0] &= nfsd_suppattrs[cstate->minorversion][0]; |
| 801 | readdir->rd_bmval[1] &= nfsd_suppattrs[cstate->minorversion][1]; |
| 802 | readdir->rd_bmval[2] &= nfsd_suppattrs[cstate->minorversion][2]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 803 | |
Bernd Schubert | 832023b | 2011-08-08 17:38:08 +0200 | [diff] [blame] | 804 | if ((cookie == 1) || (cookie == 2) || |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 805 | (cookie == 0 && memcmp(readdir->rd_verf.data, zeroverf.data, NFS4_VERIFIER_SIZE))) |
| 806 | return nfserr_bad_cookie; |
| 807 | |
| 808 | readdir->rd_rqstp = rqstp; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 809 | readdir->rd_fhp = &cstate->current_fh; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 810 | return nfs_ok; |
| 811 | } |
| 812 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 813 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 814 | nfsd4_readlink(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 815 | union nfsd4_op_u *u) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 816 | { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 817 | u->readlink.rl_rqstp = rqstp; |
| 818 | u->readlink.rl_fhp = &cstate->current_fh; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 819 | return nfs_ok; |
| 820 | } |
| 821 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 822 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 823 | nfsd4_remove(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 824 | union nfsd4_op_u *u) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 825 | { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 826 | struct nfsd4_remove *remove = &u->remove; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 827 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 828 | |
J. Bruce Fields | c87fb4a | 2015-08-06 12:47:02 -0400 | [diff] [blame] | 829 | if (opens_in_grace(SVC_NET(rqstp))) |
NeilBrown | c815afc | 2005-06-23 22:03:00 -0700 | [diff] [blame] | 830 | return nfserr_grace; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 831 | status = nfsd_unlink(rqstp, &cstate->current_fh, 0, |
| 832 | remove->rm_name, remove->rm_namelen); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 833 | if (!status) { |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 834 | fh_unlock(&cstate->current_fh); |
| 835 | set_change_info(&remove->rm_cinfo, &cstate->current_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 836 | } |
| 837 | return status; |
| 838 | } |
| 839 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 840 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 841 | nfsd4_rename(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 842 | union nfsd4_op_u *u) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 843 | { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 844 | struct nfsd4_rename *rename = &u->rename; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 845 | __be32 status = nfserr_nofilehandle; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 846 | |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 847 | if (!cstate->save_fh.fh_dentry) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 848 | return status; |
J. Bruce Fields | c87fb4a | 2015-08-06 12:47:02 -0400 | [diff] [blame] | 849 | if (opens_in_grace(SVC_NET(rqstp)) && |
Stanislav Kinsbursky | 5ccb006 | 2012-07-25 16:57:22 +0400 | [diff] [blame] | 850 | !(cstate->save_fh.fh_export->ex_flags & NFSEXP_NOSUBTREECHECK)) |
NeilBrown | c815afc | 2005-06-23 22:03:00 -0700 | [diff] [blame] | 851 | return nfserr_grace; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 852 | status = nfsd_rename(rqstp, &cstate->save_fh, rename->rn_sname, |
| 853 | rename->rn_snamelen, &cstate->current_fh, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 854 | rename->rn_tname, rename->rn_tnamelen); |
J. Bruce Fields | 2a6cf94 | 2013-04-30 15:28:51 -0400 | [diff] [blame] | 855 | if (status) |
| 856 | return status; |
| 857 | set_change_info(&rename->rn_sinfo, &cstate->current_fh); |
| 858 | set_change_info(&rename->rn_tinfo, &cstate->save_fh); |
| 859 | return nfs_ok; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 860 | } |
| 861 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 862 | static __be32 |
Andy Adamson | dcb488a3 | 2007-07-17 04:04:51 -0700 | [diff] [blame] | 863 | nfsd4_secinfo(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 864 | union nfsd4_op_u *u) |
Andy Adamson | dcb488a3 | 2007-07-17 04:04:51 -0700 | [diff] [blame] | 865 | { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 866 | struct nfsd4_secinfo *secinfo = &u->secinfo; |
Andy Adamson | dcb488a3 | 2007-07-17 04:04:51 -0700 | [diff] [blame] | 867 | struct svc_export *exp; |
| 868 | struct dentry *dentry; |
| 869 | __be32 err; |
| 870 | |
J. Bruce Fields | 29a78a3 | 2011-04-09 11:28:53 -0400 | [diff] [blame] | 871 | err = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, NFSD_MAY_EXEC); |
| 872 | if (err) |
| 873 | return err; |
Andy Adamson | dcb488a3 | 2007-07-17 04:04:51 -0700 | [diff] [blame] | 874 | err = nfsd_lookup_dentry(rqstp, &cstate->current_fh, |
| 875 | secinfo->si_name, secinfo->si_namelen, |
| 876 | &exp, &dentry); |
| 877 | if (err) |
| 878 | return err; |
J. Bruce Fields | 2f6fc05 | 2016-03-02 16:36:21 -0800 | [diff] [blame] | 879 | fh_unlock(&cstate->current_fh); |
David Howells | 2b0143b | 2015-03-17 22:25:59 +0000 | [diff] [blame] | 880 | if (d_really_is_negative(dentry)) { |
Andy Adamson | dcb488a3 | 2007-07-17 04:04:51 -0700 | [diff] [blame] | 881 | exp_put(exp); |
| 882 | err = nfserr_noent; |
| 883 | } else |
| 884 | secinfo->si_exp = exp; |
| 885 | dput(dentry); |
J. Bruce Fields | 56560b9 | 2010-12-16 09:57:15 -0500 | [diff] [blame] | 886 | if (cstate->minorversion) |
| 887 | /* See rfc 5661 section 2.6.3.1.1.8 */ |
| 888 | fh_put(&cstate->current_fh); |
Andy Adamson | dcb488a3 | 2007-07-17 04:04:51 -0700 | [diff] [blame] | 889 | return err; |
| 890 | } |
| 891 | |
| 892 | static __be32 |
J. Bruce Fields | 04f4ad1 | 2010-12-16 09:51:13 -0500 | [diff] [blame] | 893 | nfsd4_secinfo_no_name(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 894 | union nfsd4_op_u *u) |
J. Bruce Fields | 04f4ad1 | 2010-12-16 09:51:13 -0500 | [diff] [blame] | 895 | { |
| 896 | __be32 err; |
| 897 | |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 898 | switch (u->secinfo_no_name.sin_style) { |
J. Bruce Fields | 04f4ad1 | 2010-12-16 09:51:13 -0500 | [diff] [blame] | 899 | case NFS4_SECINFO_STYLE4_CURRENT_FH: |
| 900 | break; |
| 901 | case NFS4_SECINFO_STYLE4_PARENT: |
| 902 | err = nfsd4_do_lookupp(rqstp, &cstate->current_fh); |
| 903 | if (err) |
| 904 | return err; |
| 905 | break; |
| 906 | default: |
| 907 | return nfserr_inval; |
| 908 | } |
Kinglong Mee | bf18f16 | 2014-06-10 22:06:44 +0800 | [diff] [blame] | 909 | |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 910 | u->secinfo_no_name.sin_exp = exp_get(cstate->current_fh.fh_export); |
J. Bruce Fields | 04f4ad1 | 2010-12-16 09:51:13 -0500 | [diff] [blame] | 911 | fh_put(&cstate->current_fh); |
| 912 | return nfs_ok; |
| 913 | } |
| 914 | |
| 915 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 916 | nfsd4_setattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 917 | union nfsd4_op_u *u) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 918 | { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 919 | struct nfsd4_setattr *setattr = &u->setattr; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 920 | __be32 status = nfs_ok; |
Al Viro | 96f6f98 | 2012-04-12 23:47:00 -0400 | [diff] [blame] | 921 | int err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 922 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 923 | if (setattr->sa_iattr.ia_valid & ATTR_SIZE) { |
Christoph Hellwig | af90f70 | 2015-06-18 16:45:00 +0200 | [diff] [blame] | 924 | status = nfs4_preprocess_stateid_op(rqstp, cstate, |
Anna Schumaker | aa0d6ae | 2015-12-03 12:59:51 +0100 | [diff] [blame] | 925 | &cstate->current_fh, &setattr->sa_stateid, |
| 926 | WR_STATE, NULL, NULL); |
J. Bruce Fields | 375c554 | 2006-01-18 17:43:33 -0800 | [diff] [blame] | 927 | if (status) { |
Greg Banks | 3e3b480 | 2006-10-02 02:17:41 -0700 | [diff] [blame] | 928 | dprintk("NFSD: nfsd4_setattr: couldn't process stateid!\n"); |
J. Bruce Fields | 375c554 | 2006-01-18 17:43:33 -0800 | [diff] [blame] | 929 | return status; |
| 930 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 931 | } |
Al Viro | 96f6f98 | 2012-04-12 23:47:00 -0400 | [diff] [blame] | 932 | err = fh_want_write(&cstate->current_fh); |
| 933 | if (err) |
| 934 | return nfserrno(err); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 935 | status = nfs_ok; |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 936 | |
| 937 | status = check_attr_support(rqstp, cstate, setattr->sa_bmval, |
| 938 | nfsd_attrmask); |
| 939 | if (status) |
| 940 | goto out; |
| 941 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 942 | if (setattr->sa_acl != NULL) |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 943 | status = nfsd4_set_nfs4_acl(rqstp, &cstate->current_fh, |
| 944 | setattr->sa_acl); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 945 | if (status) |
Dave Hansen | 18f335a | 2008-02-15 14:37:38 -0800 | [diff] [blame] | 946 | goto out; |
David Quigley | 18032ca | 2013-05-02 13:19:10 -0400 | [diff] [blame] | 947 | if (setattr->sa_label.len) |
| 948 | status = nfsd4_set_nfs4_label(rqstp, &cstate->current_fh, |
| 949 | &setattr->sa_label); |
| 950 | if (status) |
| 951 | goto out; |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 952 | status = nfsd_setattr(rqstp, &cstate->current_fh, &setattr->sa_iattr, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 953 | 0, (time_t)0); |
Dave Hansen | 18f335a | 2008-02-15 14:37:38 -0800 | [diff] [blame] | 954 | out: |
Al Viro | bad0dcf | 2011-11-23 12:03:18 -0500 | [diff] [blame] | 955 | fh_drop_write(&cstate->current_fh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 956 | return status; |
| 957 | } |
| 958 | |
J. Bruce Fields | ffe1137 | 2012-11-15 14:52:19 -0500 | [diff] [blame] | 959 | static int fill_in_write_vector(struct kvec *vec, struct nfsd4_write *write) |
| 960 | { |
| 961 | int i = 1; |
| 962 | int buflen = write->wr_buflen; |
| 963 | |
| 964 | vec[0].iov_base = write->wr_head.iov_base; |
| 965 | vec[0].iov_len = min_t(int, buflen, write->wr_head.iov_len); |
| 966 | buflen -= vec[0].iov_len; |
| 967 | |
| 968 | while (buflen) { |
| 969 | vec[i].iov_base = page_address(write->wr_pagelist[i - 1]); |
| 970 | vec[i].iov_len = min_t(int, PAGE_SIZE, buflen); |
| 971 | buflen -= vec[i].iov_len; |
| 972 | i++; |
| 973 | } |
| 974 | return i; |
| 975 | } |
| 976 | |
J.Bruce Fields | 7191155 | 2006-12-13 00:35:29 -0800 | [diff] [blame] | 977 | static __be32 |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 978 | nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 979 | union nfsd4_op_u *u) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 980 | { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 981 | struct nfsd4_write *write = &u->write; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 982 | stateid_t *stateid = &write->wr_stateid; |
| 983 | struct file *filp = NULL; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 984 | __be32 status = nfs_ok; |
David Shaw | 31dec25 | 2009-03-05 20:16:14 -0500 | [diff] [blame] | 985 | unsigned long cnt; |
J. Bruce Fields | ffe1137 | 2012-11-15 14:52:19 -0500 | [diff] [blame] | 986 | int nvecs; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 987 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 988 | if (write->wr_offset >= OFFSET_MAX) |
| 989 | return nfserr_inval; |
| 990 | |
Anna Schumaker | aa0d6ae | 2015-12-03 12:59:51 +0100 | [diff] [blame] | 991 | status = nfs4_preprocess_stateid_op(rqstp, cstate, &cstate->current_fh, |
| 992 | stateid, WR_STATE, &filp, NULL); |
J. Bruce Fields | 375c554 | 2006-01-18 17:43:33 -0800 | [diff] [blame] | 993 | if (status) { |
| 994 | dprintk("NFSD: nfsd4_write: couldn't process stateid!\n"); |
| 995 | return status; |
| 996 | } |
| 997 | |
David Shaw | 31dec25 | 2009-03-05 20:16:14 -0500 | [diff] [blame] | 998 | cnt = write->wr_buflen; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 999 | write->wr_how_written = write->wr_stable_how; |
Stanislav Kinsbursky | b9c0ef8 | 2012-12-06 14:23:19 +0300 | [diff] [blame] | 1000 | gen_boot_verifier(&write->wr_verifier, SVC_NET(rqstp)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1001 | |
J. Bruce Fields | ffe1137 | 2012-11-15 14:52:19 -0500 | [diff] [blame] | 1002 | nvecs = fill_in_write_vector(rqstp->rq_vec, write); |
| 1003 | WARN_ON_ONCE(nvecs > ARRAY_SIZE(rqstp->rq_vec)); |
| 1004 | |
Christoph Hellwig | af90f70 | 2015-06-18 16:45:00 +0200 | [diff] [blame] | 1005 | status = nfsd_vfs_write(rqstp, &cstate->current_fh, filp, |
| 1006 | write->wr_offset, rqstp->rq_vec, nvecs, &cnt, |
Kinglong Mee | 54bbb7d | 2016-12-31 20:59:53 +0800 | [diff] [blame] | 1007 | write->wr_how_written); |
Christoph Hellwig | af90f70 | 2015-06-18 16:45:00 +0200 | [diff] [blame] | 1008 | fput(filp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1009 | |
David Shaw | 31dec25 | 2009-03-05 20:16:14 -0500 | [diff] [blame] | 1010 | write->wr_bytes_written = cnt; |
| 1011 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1012 | return status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1013 | } |
| 1014 | |
Anna Schumaker | 24bab49 | 2014-09-26 13:58:27 -0400 | [diff] [blame] | 1015 | static __be32 |
Anna Schumaker | 29ae7f9 | 2016-09-07 15:57:30 -0400 | [diff] [blame] | 1016 | nfsd4_verify_copy(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 1017 | stateid_t *src_stateid, struct file **src, |
| 1018 | stateid_t *dst_stateid, struct file **dst) |
Christoph Hellwig | ffa0160 | 2015-12-03 12:59:52 +0100 | [diff] [blame] | 1019 | { |
Christoph Hellwig | ffa0160 | 2015-12-03 12:59:52 +0100 | [diff] [blame] | 1020 | __be32 status; |
| 1021 | |
| 1022 | status = nfs4_preprocess_stateid_op(rqstp, cstate, &cstate->save_fh, |
Anna Schumaker | 29ae7f9 | 2016-09-07 15:57:30 -0400 | [diff] [blame] | 1023 | src_stateid, RD_STATE, src, NULL); |
Christoph Hellwig | ffa0160 | 2015-12-03 12:59:52 +0100 | [diff] [blame] | 1024 | if (status) { |
| 1025 | dprintk("NFSD: %s: couldn't process src stateid!\n", __func__); |
| 1026 | goto out; |
| 1027 | } |
| 1028 | |
| 1029 | status = nfs4_preprocess_stateid_op(rqstp, cstate, &cstate->current_fh, |
Anna Schumaker | 29ae7f9 | 2016-09-07 15:57:30 -0400 | [diff] [blame] | 1030 | dst_stateid, WR_STATE, dst, NULL); |
Christoph Hellwig | ffa0160 | 2015-12-03 12:59:52 +0100 | [diff] [blame] | 1031 | if (status) { |
| 1032 | dprintk("NFSD: %s: couldn't process dst stateid!\n", __func__); |
| 1033 | goto out_put_src; |
| 1034 | } |
| 1035 | |
| 1036 | /* fix up for NFS-specific error code */ |
Anna Schumaker | 29ae7f9 | 2016-09-07 15:57:30 -0400 | [diff] [blame] | 1037 | if (!S_ISREG(file_inode(*src)->i_mode) || |
| 1038 | !S_ISREG(file_inode(*dst)->i_mode)) { |
Christoph Hellwig | ffa0160 | 2015-12-03 12:59:52 +0100 | [diff] [blame] | 1039 | status = nfserr_wrong_type; |
| 1040 | goto out_put_dst; |
| 1041 | } |
| 1042 | |
Anna Schumaker | 29ae7f9 | 2016-09-07 15:57:30 -0400 | [diff] [blame] | 1043 | out: |
| 1044 | return status; |
| 1045 | out_put_dst: |
| 1046 | fput(*dst); |
| 1047 | out_put_src: |
| 1048 | fput(*src); |
| 1049 | goto out; |
| 1050 | } |
| 1051 | |
| 1052 | static __be32 |
| 1053 | nfsd4_clone(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 1054 | union nfsd4_op_u *u) |
Anna Schumaker | 29ae7f9 | 2016-09-07 15:57:30 -0400 | [diff] [blame] | 1055 | { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 1056 | struct nfsd4_clone *clone = &u->clone; |
Anna Schumaker | 29ae7f9 | 2016-09-07 15:57:30 -0400 | [diff] [blame] | 1057 | struct file *src, *dst; |
| 1058 | __be32 status; |
| 1059 | |
| 1060 | status = nfsd4_verify_copy(rqstp, cstate, &clone->cl_src_stateid, &src, |
| 1061 | &clone->cl_dst_stateid, &dst); |
| 1062 | if (status) |
| 1063 | goto out; |
| 1064 | |
Christoph Hellwig | ffa0160 | 2015-12-03 12:59:52 +0100 | [diff] [blame] | 1065 | status = nfsd4_clone_file_range(src, clone->cl_src_pos, |
| 1066 | dst, clone->cl_dst_pos, clone->cl_count); |
| 1067 | |
Christoph Hellwig | ffa0160 | 2015-12-03 12:59:52 +0100 | [diff] [blame] | 1068 | fput(dst); |
Christoph Hellwig | ffa0160 | 2015-12-03 12:59:52 +0100 | [diff] [blame] | 1069 | fput(src); |
| 1070 | out: |
| 1071 | return status; |
| 1072 | } |
| 1073 | |
| 1074 | static __be32 |
Anna Schumaker | 29ae7f9 | 2016-09-07 15:57:30 -0400 | [diff] [blame] | 1075 | nfsd4_copy(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 1076 | union nfsd4_op_u *u) |
Anna Schumaker | 29ae7f9 | 2016-09-07 15:57:30 -0400 | [diff] [blame] | 1077 | { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 1078 | struct nfsd4_copy *copy = &u->copy; |
Anna Schumaker | 29ae7f9 | 2016-09-07 15:57:30 -0400 | [diff] [blame] | 1079 | struct file *src, *dst; |
| 1080 | __be32 status; |
| 1081 | ssize_t bytes; |
| 1082 | |
| 1083 | status = nfsd4_verify_copy(rqstp, cstate, ©->cp_src_stateid, &src, |
| 1084 | ©->cp_dst_stateid, &dst); |
| 1085 | if (status) |
| 1086 | goto out; |
| 1087 | |
| 1088 | bytes = nfsd_copy_file_range(src, copy->cp_src_pos, |
| 1089 | dst, copy->cp_dst_pos, copy->cp_count); |
| 1090 | |
| 1091 | if (bytes < 0) |
| 1092 | status = nfserrno(bytes); |
| 1093 | else { |
| 1094 | copy->cp_res.wr_bytes_written = bytes; |
| 1095 | copy->cp_res.wr_stable_how = NFS_UNSTABLE; |
| 1096 | copy->cp_consecutive = 1; |
| 1097 | copy->cp_synchronous = 1; |
| 1098 | gen_boot_verifier(©->cp_res.wr_verifier, SVC_NET(rqstp)); |
| 1099 | status = nfs_ok; |
| 1100 | } |
| 1101 | |
| 1102 | fput(src); |
| 1103 | fput(dst); |
| 1104 | out: |
| 1105 | return status; |
| 1106 | } |
| 1107 | |
| 1108 | static __be32 |
Anna Schumaker | 95d871f | 2014-11-07 14:44:26 -0500 | [diff] [blame] | 1109 | nfsd4_fallocate(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
| 1110 | struct nfsd4_fallocate *fallocate, int flags) |
| 1111 | { |
| 1112 | __be32 status = nfserr_notsupp; |
| 1113 | struct file *file; |
| 1114 | |
Anna Schumaker | aa0d6ae | 2015-12-03 12:59:51 +0100 | [diff] [blame] | 1115 | status = nfs4_preprocess_stateid_op(rqstp, cstate, &cstate->current_fh, |
Anna Schumaker | 95d871f | 2014-11-07 14:44:26 -0500 | [diff] [blame] | 1116 | &fallocate->falloc_stateid, |
Christoph Hellwig | af90f70 | 2015-06-18 16:45:00 +0200 | [diff] [blame] | 1117 | WR_STATE, &file, NULL); |
Anna Schumaker | 95d871f | 2014-11-07 14:44:26 -0500 | [diff] [blame] | 1118 | if (status != nfs_ok) { |
| 1119 | dprintk("NFSD: nfsd4_fallocate: couldn't process stateid!\n"); |
| 1120 | return status; |
| 1121 | } |
| 1122 | |
| 1123 | status = nfsd4_vfs_fallocate(rqstp, &cstate->current_fh, file, |
| 1124 | fallocate->falloc_offset, |
| 1125 | fallocate->falloc_length, |
| 1126 | flags); |
| 1127 | fput(file); |
| 1128 | return status; |
| 1129 | } |
| 1130 | |
| 1131 | static __be32 |
| 1132 | nfsd4_allocate(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 1133 | union nfsd4_op_u *u) |
Anna Schumaker | 95d871f | 2014-11-07 14:44:26 -0500 | [diff] [blame] | 1134 | { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 1135 | return nfsd4_fallocate(rqstp, cstate, &u->allocate, 0); |
Anna Schumaker | 95d871f | 2014-11-07 14:44:26 -0500 | [diff] [blame] | 1136 | } |
| 1137 | |
| 1138 | static __be32 |
Anna Schumaker | b0cb908 | 2014-11-07 14:44:27 -0500 | [diff] [blame] | 1139 | nfsd4_deallocate(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 1140 | union nfsd4_op_u *u) |
Anna Schumaker | b0cb908 | 2014-11-07 14:44:27 -0500 | [diff] [blame] | 1141 | { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 1142 | return nfsd4_fallocate(rqstp, cstate, &u->deallocate, |
Anna Schumaker | b0cb908 | 2014-11-07 14:44:27 -0500 | [diff] [blame] | 1143 | FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE); |
| 1144 | } |
| 1145 | |
| 1146 | static __be32 |
Anna Schumaker | 24bab49 | 2014-09-26 13:58:27 -0400 | [diff] [blame] | 1147 | nfsd4_seek(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 1148 | union nfsd4_op_u *u) |
Anna Schumaker | 24bab49 | 2014-09-26 13:58:27 -0400 | [diff] [blame] | 1149 | { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 1150 | struct nfsd4_seek *seek = &u->seek; |
Anna Schumaker | 24bab49 | 2014-09-26 13:58:27 -0400 | [diff] [blame] | 1151 | int whence; |
| 1152 | __be32 status; |
| 1153 | struct file *file; |
| 1154 | |
Anna Schumaker | aa0d6ae | 2015-12-03 12:59:51 +0100 | [diff] [blame] | 1155 | status = nfs4_preprocess_stateid_op(rqstp, cstate, &cstate->current_fh, |
Anna Schumaker | 24bab49 | 2014-09-26 13:58:27 -0400 | [diff] [blame] | 1156 | &seek->seek_stateid, |
Christoph Hellwig | af90f70 | 2015-06-18 16:45:00 +0200 | [diff] [blame] | 1157 | RD_STATE, &file, NULL); |
Anna Schumaker | 24bab49 | 2014-09-26 13:58:27 -0400 | [diff] [blame] | 1158 | if (status) { |
| 1159 | dprintk("NFSD: nfsd4_seek: couldn't process stateid!\n"); |
| 1160 | return status; |
| 1161 | } |
| 1162 | |
| 1163 | switch (seek->seek_whence) { |
| 1164 | case NFS4_CONTENT_DATA: |
| 1165 | whence = SEEK_DATA; |
| 1166 | break; |
| 1167 | case NFS4_CONTENT_HOLE: |
| 1168 | whence = SEEK_HOLE; |
| 1169 | break; |
| 1170 | default: |
| 1171 | status = nfserr_union_notsupp; |
| 1172 | goto out; |
| 1173 | } |
| 1174 | |
| 1175 | /* |
| 1176 | * Note: This call does change file->f_pos, but nothing in NFSD |
| 1177 | * should ever file->f_pos. |
| 1178 | */ |
| 1179 | seek->seek_pos = vfs_llseek(file, seek->seek_offset, whence); |
| 1180 | if (seek->seek_pos < 0) |
| 1181 | status = nfserrno(seek->seek_pos); |
| 1182 | else if (seek->seek_pos >= i_size_read(file_inode(file))) |
| 1183 | seek->seek_eof = true; |
| 1184 | |
| 1185 | out: |
| 1186 | fput(file); |
| 1187 | return status; |
| 1188 | } |
| 1189 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1190 | /* This routine never returns NFS_OK! If there are no other errors, it |
| 1191 | * will return NFSERR_SAME or NFSERR_NOT_SAME depending on whether the |
| 1192 | * attributes matched. VERIFY is implemented by mapping NFSERR_SAME |
| 1193 | * to NFS_OK after the call; NVERIFY by mapping NFSERR_NOT_SAME to NFS_OK. |
| 1194 | */ |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 1195 | static __be32 |
J.Bruce Fields | c954e2a | 2006-12-13 00:35:31 -0800 | [diff] [blame] | 1196 | _nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 1197 | struct nfsd4_verify *verify) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1198 | { |
Al Viro | 2ebbc01 | 2006-10-19 23:28:58 -0700 | [diff] [blame] | 1199 | __be32 *buf, *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1200 | int count; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 1201 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1202 | |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 1203 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1204 | if (status) |
| 1205 | return status; |
| 1206 | |
Yu Zhiguo | 3c8e031 | 2009-05-16 16:22:31 +0800 | [diff] [blame] | 1207 | status = check_attr_support(rqstp, cstate, verify->ve_bmval, NULL); |
| 1208 | if (status) |
| 1209 | return status; |
| 1210 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1211 | if ((verify->ve_bmval[0] & FATTR4_WORD0_RDATTR_ERROR) |
| 1212 | || (verify->ve_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1)) |
| 1213 | return nfserr_inval; |
| 1214 | if (verify->ve_attrlen & 3) |
| 1215 | return nfserr_inval; |
| 1216 | |
| 1217 | /* count in words: |
| 1218 | * bitmap_len(1) + bitmap(2) + attr_len(1) = 4 |
| 1219 | */ |
| 1220 | count = 4 + (verify->ve_attrlen >> 2); |
| 1221 | buf = kmalloc(count << 2, GFP_KERNEL); |
| 1222 | if (!buf) |
J. Bruce Fields | 3e77246 | 2011-08-10 19:07:33 -0400 | [diff] [blame] | 1223 | return nfserr_jukebox; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1224 | |
J. Bruce Fields | 84822d0 | 2012-12-14 17:57:50 -0500 | [diff] [blame] | 1225 | p = buf; |
J. Bruce Fields | d518465 | 2013-08-26 16:04:46 -0400 | [diff] [blame] | 1226 | status = nfsd4_encode_fattr_to_buf(&p, count, &cstate->current_fh, |
J.Bruce Fields | ca36431 | 2006-12-13 00:35:27 -0800 | [diff] [blame] | 1227 | cstate->current_fh.fh_export, |
J. Bruce Fields | d518465 | 2013-08-26 16:04:46 -0400 | [diff] [blame] | 1228 | cstate->current_fh.fh_dentry, |
| 1229 | verify->ve_bmval, |
Frank Filz | 406a7ea | 2007-11-27 11:34:05 -0800 | [diff] [blame] | 1230 | rqstp, 0); |
J. Bruce Fields | 41ae6e7 | 2013-08-21 15:32:50 -0400 | [diff] [blame] | 1231 | /* |
| 1232 | * If nfsd4_encode_fattr() ran out of space, assume that's because |
| 1233 | * the attributes are longer (hence different) than those given: |
| 1234 | */ |
J. Bruce Fields | 84822d0 | 2012-12-14 17:57:50 -0500 | [diff] [blame] | 1235 | if (status == nfserr_resource) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1236 | status = nfserr_not_same; |
| 1237 | if (status) |
| 1238 | goto out_kfree; |
| 1239 | |
Benny Halevy | 95ec28c | 2009-04-03 08:29:08 +0300 | [diff] [blame] | 1240 | /* skip bitmap */ |
| 1241 | p = buf + 1 + ntohl(buf[0]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1242 | status = nfserr_not_same; |
| 1243 | if (ntohl(*p++) != verify->ve_attrlen) |
| 1244 | goto out_kfree; |
| 1245 | if (!memcmp(p, verify->ve_attrval, verify->ve_attrlen)) |
| 1246 | status = nfserr_same; |
| 1247 | |
| 1248 | out_kfree: |
| 1249 | kfree(buf); |
| 1250 | return status; |
| 1251 | } |
| 1252 | |
J.Bruce Fields | c954e2a | 2006-12-13 00:35:31 -0800 | [diff] [blame] | 1253 | static __be32 |
| 1254 | nfsd4_nverify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 1255 | union nfsd4_op_u *u) |
J.Bruce Fields | c954e2a | 2006-12-13 00:35:31 -0800 | [diff] [blame] | 1256 | { |
| 1257 | __be32 status; |
| 1258 | |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 1259 | status = _nfsd4_verify(rqstp, cstate, &u->verify); |
J.Bruce Fields | c954e2a | 2006-12-13 00:35:31 -0800 | [diff] [blame] | 1260 | return status == nfserr_not_same ? nfs_ok : status; |
| 1261 | } |
| 1262 | |
| 1263 | static __be32 |
| 1264 | nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 1265 | union nfsd4_op_u *u) |
J.Bruce Fields | c954e2a | 2006-12-13 00:35:31 -0800 | [diff] [blame] | 1266 | { |
| 1267 | __be32 status; |
| 1268 | |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 1269 | status = _nfsd4_verify(rqstp, cstate, &u->nverify); |
J.Bruce Fields | c954e2a | 2006-12-13 00:35:31 -0800 | [diff] [blame] | 1270 | return status == nfserr_same ? nfs_ok : status; |
| 1271 | } |
| 1272 | |
Christoph Hellwig | 9cf514c | 2014-05-05 13:11:59 +0200 | [diff] [blame] | 1273 | #ifdef CONFIG_NFSD_PNFS |
| 1274 | static const struct nfsd4_layout_ops * |
| 1275 | nfsd4_layout_verify(struct svc_export *exp, unsigned int layout_type) |
| 1276 | { |
Jeff Layton | 8a4c392 | 2016-07-10 15:55:58 -0400 | [diff] [blame] | 1277 | if (!exp->ex_layout_types) { |
Christoph Hellwig | 9cf514c | 2014-05-05 13:11:59 +0200 | [diff] [blame] | 1278 | dprintk("%s: export does not support pNFS\n", __func__); |
| 1279 | return NULL; |
| 1280 | } |
| 1281 | |
Ari Kauppi | b550a32 | 2017-05-05 16:07:55 -0400 | [diff] [blame] | 1282 | if (layout_type >= LAYOUT_TYPE_MAX || |
| 1283 | !(exp->ex_layout_types & (1 << layout_type))) { |
Christoph Hellwig | 9cf514c | 2014-05-05 13:11:59 +0200 | [diff] [blame] | 1284 | dprintk("%s: layout type %d not supported\n", |
| 1285 | __func__, layout_type); |
| 1286 | return NULL; |
| 1287 | } |
| 1288 | |
| 1289 | return nfsd4_layout_ops[layout_type]; |
| 1290 | } |
| 1291 | |
| 1292 | static __be32 |
| 1293 | nfsd4_getdeviceinfo(struct svc_rqst *rqstp, |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 1294 | struct nfsd4_compound_state *cstate, union nfsd4_op_u *u) |
Christoph Hellwig | 9cf514c | 2014-05-05 13:11:59 +0200 | [diff] [blame] | 1295 | { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 1296 | struct nfsd4_getdeviceinfo *gdp = &u->getdeviceinfo; |
Christoph Hellwig | 9cf514c | 2014-05-05 13:11:59 +0200 | [diff] [blame] | 1297 | const struct nfsd4_layout_ops *ops; |
| 1298 | struct nfsd4_deviceid_map *map; |
| 1299 | struct svc_export *exp; |
| 1300 | __be32 nfserr; |
| 1301 | |
| 1302 | dprintk("%s: layout_type %u dev_id [0x%llx:0x%x] maxcnt %u\n", |
| 1303 | __func__, |
| 1304 | gdp->gd_layout_type, |
| 1305 | gdp->gd_devid.fsid_idx, gdp->gd_devid.generation, |
| 1306 | gdp->gd_maxcount); |
| 1307 | |
| 1308 | map = nfsd4_find_devid_map(gdp->gd_devid.fsid_idx); |
| 1309 | if (!map) { |
| 1310 | dprintk("%s: couldn't find device ID to export mapping!\n", |
| 1311 | __func__); |
| 1312 | return nfserr_noent; |
| 1313 | } |
| 1314 | |
| 1315 | exp = rqst_exp_find(rqstp, map->fsid_type, map->fsid); |
| 1316 | if (IS_ERR(exp)) { |
| 1317 | dprintk("%s: could not find device id\n", __func__); |
| 1318 | return nfserr_noent; |
| 1319 | } |
| 1320 | |
| 1321 | nfserr = nfserr_layoutunavailable; |
| 1322 | ops = nfsd4_layout_verify(exp, gdp->gd_layout_type); |
| 1323 | if (!ops) |
| 1324 | goto out; |
| 1325 | |
| 1326 | nfserr = nfs_ok; |
Christoph Hellwig | f99d4fb | 2016-03-04 20:46:17 +0100 | [diff] [blame] | 1327 | if (gdp->gd_maxcount != 0) { |
| 1328 | nfserr = ops->proc_getdeviceinfo(exp->ex_path.mnt->mnt_sb, |
Tom Haynes | d7c920d | 2016-06-14 13:41:27 -0700 | [diff] [blame] | 1329 | rqstp, cstate->session->se_client, gdp); |
Christoph Hellwig | f99d4fb | 2016-03-04 20:46:17 +0100 | [diff] [blame] | 1330 | } |
Christoph Hellwig | 9cf514c | 2014-05-05 13:11:59 +0200 | [diff] [blame] | 1331 | |
| 1332 | gdp->gd_notify_types &= ops->notify_types; |
Christoph Hellwig | 9cf514c | 2014-05-05 13:11:59 +0200 | [diff] [blame] | 1333 | out: |
Kinglong Mee | a142038 | 2015-03-15 23:12:15 +0800 | [diff] [blame] | 1334 | exp_put(exp); |
Christoph Hellwig | 9cf514c | 2014-05-05 13:11:59 +0200 | [diff] [blame] | 1335 | return nfserr; |
| 1336 | } |
| 1337 | |
| 1338 | static __be32 |
| 1339 | nfsd4_layoutget(struct svc_rqst *rqstp, |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 1340 | struct nfsd4_compound_state *cstate, union nfsd4_op_u *u) |
Christoph Hellwig | 9cf514c | 2014-05-05 13:11:59 +0200 | [diff] [blame] | 1341 | { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 1342 | struct nfsd4_layoutget *lgp = &u->layoutget; |
Christoph Hellwig | 9cf514c | 2014-05-05 13:11:59 +0200 | [diff] [blame] | 1343 | struct svc_fh *current_fh = &cstate->current_fh; |
| 1344 | const struct nfsd4_layout_ops *ops; |
| 1345 | struct nfs4_layout_stateid *ls; |
| 1346 | __be32 nfserr; |
| 1347 | int accmode; |
| 1348 | |
| 1349 | switch (lgp->lg_seg.iomode) { |
| 1350 | case IOMODE_READ: |
| 1351 | accmode = NFSD_MAY_READ; |
| 1352 | break; |
| 1353 | case IOMODE_RW: |
| 1354 | accmode = NFSD_MAY_READ | NFSD_MAY_WRITE; |
| 1355 | break; |
| 1356 | default: |
| 1357 | dprintk("%s: invalid iomode %d\n", |
| 1358 | __func__, lgp->lg_seg.iomode); |
| 1359 | nfserr = nfserr_badiomode; |
| 1360 | goto out; |
| 1361 | } |
| 1362 | |
| 1363 | nfserr = fh_verify(rqstp, current_fh, 0, accmode); |
| 1364 | if (nfserr) |
| 1365 | goto out; |
| 1366 | |
| 1367 | nfserr = nfserr_layoutunavailable; |
| 1368 | ops = nfsd4_layout_verify(current_fh->fh_export, lgp->lg_layout_type); |
| 1369 | if (!ops) |
| 1370 | goto out; |
| 1371 | |
| 1372 | /* |
| 1373 | * Verify minlength and range as per RFC5661: |
| 1374 | * o If loga_length is less than loga_minlength, |
| 1375 | * the metadata server MUST return NFS4ERR_INVAL. |
| 1376 | * o If the sum of loga_offset and loga_minlength exceeds |
| 1377 | * NFS4_UINT64_MAX, and loga_minlength is not |
| 1378 | * NFS4_UINT64_MAX, the error NFS4ERR_INVAL MUST result. |
| 1379 | * o If the sum of loga_offset and loga_length exceeds |
| 1380 | * NFS4_UINT64_MAX, and loga_length is not NFS4_UINT64_MAX, |
| 1381 | * the error NFS4ERR_INVAL MUST result. |
| 1382 | */ |
| 1383 | nfserr = nfserr_inval; |
| 1384 | if (lgp->lg_seg.length < lgp->lg_minlength || |
| 1385 | (lgp->lg_minlength != NFS4_MAX_UINT64 && |
| 1386 | lgp->lg_minlength > NFS4_MAX_UINT64 - lgp->lg_seg.offset) || |
| 1387 | (lgp->lg_seg.length != NFS4_MAX_UINT64 && |
| 1388 | lgp->lg_seg.length > NFS4_MAX_UINT64 - lgp->lg_seg.offset)) |
| 1389 | goto out; |
| 1390 | if (lgp->lg_seg.length == 0) |
| 1391 | goto out; |
| 1392 | |
| 1393 | nfserr = nfsd4_preprocess_layout_stateid(rqstp, cstate, &lgp->lg_sid, |
| 1394 | true, lgp->lg_layout_type, &ls); |
Christoph Hellwig | 31ef83d | 2014-08-16 19:02:22 -0500 | [diff] [blame] | 1395 | if (nfserr) { |
| 1396 | trace_layout_get_lookup_fail(&lgp->lg_sid); |
Christoph Hellwig | 9cf514c | 2014-05-05 13:11:59 +0200 | [diff] [blame] | 1397 | goto out; |
Christoph Hellwig | 31ef83d | 2014-08-16 19:02:22 -0500 | [diff] [blame] | 1398 | } |
Christoph Hellwig | 9cf514c | 2014-05-05 13:11:59 +0200 | [diff] [blame] | 1399 | |
Christoph Hellwig | c5c707f | 2014-09-23 12:38:48 +0200 | [diff] [blame] | 1400 | nfserr = nfserr_recallconflict; |
| 1401 | if (atomic_read(&ls->ls_stid.sc_file->fi_lo_recalls)) |
| 1402 | goto out_put_stid; |
| 1403 | |
David Howells | 2b0143b | 2015-03-17 22:25:59 +0000 | [diff] [blame] | 1404 | nfserr = ops->proc_layoutget(d_inode(current_fh->fh_dentry), |
Christoph Hellwig | 9cf514c | 2014-05-05 13:11:59 +0200 | [diff] [blame] | 1405 | current_fh, lgp); |
| 1406 | if (nfserr) |
| 1407 | goto out_put_stid; |
| 1408 | |
| 1409 | nfserr = nfsd4_insert_layout(lgp, ls); |
| 1410 | |
| 1411 | out_put_stid: |
Jeff Layton | cc8a553 | 2015-09-17 07:58:24 -0400 | [diff] [blame] | 1412 | mutex_unlock(&ls->ls_mutex); |
Christoph Hellwig | 9cf514c | 2014-05-05 13:11:59 +0200 | [diff] [blame] | 1413 | nfs4_put_stid(&ls->ls_stid); |
| 1414 | out: |
| 1415 | return nfserr; |
| 1416 | } |
| 1417 | |
| 1418 | static __be32 |
| 1419 | nfsd4_layoutcommit(struct svc_rqst *rqstp, |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 1420 | struct nfsd4_compound_state *cstate, union nfsd4_op_u *u) |
Christoph Hellwig | 9cf514c | 2014-05-05 13:11:59 +0200 | [diff] [blame] | 1421 | { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 1422 | struct nfsd4_layoutcommit *lcp = &u->layoutcommit; |
Christoph Hellwig | 9cf514c | 2014-05-05 13:11:59 +0200 | [diff] [blame] | 1423 | const struct nfsd4_layout_seg *seg = &lcp->lc_seg; |
| 1424 | struct svc_fh *current_fh = &cstate->current_fh; |
| 1425 | const struct nfsd4_layout_ops *ops; |
| 1426 | loff_t new_size = lcp->lc_last_wr + 1; |
| 1427 | struct inode *inode; |
| 1428 | struct nfs4_layout_stateid *ls; |
| 1429 | __be32 nfserr; |
| 1430 | |
| 1431 | nfserr = fh_verify(rqstp, current_fh, 0, NFSD_MAY_WRITE); |
| 1432 | if (nfserr) |
| 1433 | goto out; |
| 1434 | |
| 1435 | nfserr = nfserr_layoutunavailable; |
| 1436 | ops = nfsd4_layout_verify(current_fh->fh_export, lcp->lc_layout_type); |
| 1437 | if (!ops) |
| 1438 | goto out; |
David Howells | 2b0143b | 2015-03-17 22:25:59 +0000 | [diff] [blame] | 1439 | inode = d_inode(current_fh->fh_dentry); |
Christoph Hellwig | 9cf514c | 2014-05-05 13:11:59 +0200 | [diff] [blame] | 1440 | |
| 1441 | nfserr = nfserr_inval; |
| 1442 | if (new_size <= seg->offset) { |
| 1443 | dprintk("pnfsd: last write before layout segment\n"); |
| 1444 | goto out; |
| 1445 | } |
| 1446 | if (new_size > seg->offset + seg->length) { |
| 1447 | dprintk("pnfsd: last write beyond layout segment\n"); |
| 1448 | goto out; |
| 1449 | } |
| 1450 | if (!lcp->lc_newoffset && new_size > i_size_read(inode)) { |
| 1451 | dprintk("pnfsd: layoutcommit beyond EOF\n"); |
| 1452 | goto out; |
| 1453 | } |
| 1454 | |
| 1455 | nfserr = nfsd4_preprocess_layout_stateid(rqstp, cstate, &lcp->lc_sid, |
| 1456 | false, lcp->lc_layout_type, |
| 1457 | &ls); |
| 1458 | if (nfserr) { |
Christoph Hellwig | 31ef83d | 2014-08-16 19:02:22 -0500 | [diff] [blame] | 1459 | trace_layout_commit_lookup_fail(&lcp->lc_sid); |
Christoph Hellwig | 9cf514c | 2014-05-05 13:11:59 +0200 | [diff] [blame] | 1460 | /* fixup error code as per RFC5661 */ |
| 1461 | if (nfserr == nfserr_bad_stateid) |
| 1462 | nfserr = nfserr_badlayout; |
| 1463 | goto out; |
| 1464 | } |
| 1465 | |
Jeff Layton | cc8a553 | 2015-09-17 07:58:24 -0400 | [diff] [blame] | 1466 | /* LAYOUTCOMMIT does not require any serialization */ |
| 1467 | mutex_unlock(&ls->ls_mutex); |
| 1468 | |
Christoph Hellwig | 9cf514c | 2014-05-05 13:11:59 +0200 | [diff] [blame] | 1469 | if (new_size > i_size_read(inode)) { |
| 1470 | lcp->lc_size_chg = 1; |
| 1471 | lcp->lc_newsize = new_size; |
| 1472 | } else { |
| 1473 | lcp->lc_size_chg = 0; |
| 1474 | } |
| 1475 | |
Kinglong Mee | d8398fc | 2015-07-07 10:12:03 +0800 | [diff] [blame] | 1476 | nfserr = ops->proc_layoutcommit(inode, lcp); |
Christoph Hellwig | 9cf514c | 2014-05-05 13:11:59 +0200 | [diff] [blame] | 1477 | nfs4_put_stid(&ls->ls_stid); |
| 1478 | out: |
| 1479 | return nfserr; |
| 1480 | } |
| 1481 | |
| 1482 | static __be32 |
| 1483 | nfsd4_layoutreturn(struct svc_rqst *rqstp, |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 1484 | struct nfsd4_compound_state *cstate, union nfsd4_op_u *u) |
Christoph Hellwig | 9cf514c | 2014-05-05 13:11:59 +0200 | [diff] [blame] | 1485 | { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 1486 | struct nfsd4_layoutreturn *lrp = &u->layoutreturn; |
Christoph Hellwig | 9cf514c | 2014-05-05 13:11:59 +0200 | [diff] [blame] | 1487 | struct svc_fh *current_fh = &cstate->current_fh; |
| 1488 | __be32 nfserr; |
| 1489 | |
| 1490 | nfserr = fh_verify(rqstp, current_fh, 0, NFSD_MAY_NOP); |
| 1491 | if (nfserr) |
| 1492 | goto out; |
| 1493 | |
| 1494 | nfserr = nfserr_layoutunavailable; |
| 1495 | if (!nfsd4_layout_verify(current_fh->fh_export, lrp->lr_layout_type)) |
| 1496 | goto out; |
| 1497 | |
| 1498 | switch (lrp->lr_seg.iomode) { |
| 1499 | case IOMODE_READ: |
| 1500 | case IOMODE_RW: |
| 1501 | case IOMODE_ANY: |
| 1502 | break; |
| 1503 | default: |
| 1504 | dprintk("%s: invalid iomode %d\n", __func__, |
| 1505 | lrp->lr_seg.iomode); |
| 1506 | nfserr = nfserr_inval; |
| 1507 | goto out; |
| 1508 | } |
| 1509 | |
| 1510 | switch (lrp->lr_return_type) { |
| 1511 | case RETURN_FILE: |
| 1512 | nfserr = nfsd4_return_file_layouts(rqstp, cstate, lrp); |
| 1513 | break; |
| 1514 | case RETURN_FSID: |
| 1515 | case RETURN_ALL: |
| 1516 | nfserr = nfsd4_return_client_layouts(rqstp, cstate, lrp); |
| 1517 | break; |
| 1518 | default: |
| 1519 | dprintk("%s: invalid return_type %d\n", __func__, |
| 1520 | lrp->lr_return_type); |
| 1521 | nfserr = nfserr_inval; |
| 1522 | break; |
| 1523 | } |
| 1524 | out: |
| 1525 | return nfserr; |
| 1526 | } |
| 1527 | #endif /* CONFIG_NFSD_PNFS */ |
| 1528 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1529 | /* |
| 1530 | * NULL call. |
| 1531 | */ |
Al Viro | 7111c66 | 2006-10-19 23:28:45 -0700 | [diff] [blame] | 1532 | static __be32 |
Christoph Hellwig | a6beb73 | 2017-05-08 17:35:49 +0200 | [diff] [blame] | 1533 | nfsd4_proc_null(struct svc_rqst *rqstp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1534 | { |
| 1535 | return nfs_ok; |
| 1536 | } |
| 1537 | |
Shankar Anand | e2b2095 | 2006-07-10 04:45:44 -0700 | [diff] [blame] | 1538 | static inline void nfsd4_increment_op_stats(u32 opnum) |
| 1539 | { |
| 1540 | if (opnum >= FIRST_NFS4_OP && opnum <= LAST_NFS4_OP) |
| 1541 | nfsdstats.nfs4_opcount[opnum]++; |
| 1542 | } |
| 1543 | |
Andy Adamson | f9bb94c4 | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1544 | enum nfsd4_op_flags { |
| 1545 | ALLOWED_WITHOUT_FH = 1 << 0, /* No current filehandle required */ |
Mi Jinlong | 5ece3ca | 2011-02-18 09:08:31 +0800 | [diff] [blame] | 1546 | ALLOWED_ON_ABSENT_FS = 1 << 1, /* ops processed on absent fs */ |
| 1547 | ALLOWED_AS_FIRST_OP = 1 << 2, /* ops reqired first in compound */ |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1548 | /* For rfc 5661 section 2.6.3.1.1: */ |
| 1549 | OP_HANDLES_WRONGSEC = 1 << 3, |
| 1550 | OP_IS_PUTFH_LIKE = 1 << 4, |
J. Bruce Fields | 1091006 | 2011-01-24 12:11:02 -0500 | [diff] [blame] | 1551 | /* |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 1552 | * These are the ops whose result size we estimate before |
| 1553 | * encoding, to avoid performing an op then not being able to |
| 1554 | * respond or cache a response. This includes writes and setattrs |
| 1555 | * as well as the operations usually called "nonidempotent": |
| 1556 | */ |
| 1557 | OP_MODIFIES_SOMETHING = 1 << 5, |
| 1558 | /* |
| 1559 | * Cache compounds containing these ops in the xid-based drc: |
J. Bruce Fields | 1091006 | 2011-01-24 12:11:02 -0500 | [diff] [blame] | 1560 | * We use the DRC for compounds containing non-idempotent |
| 1561 | * operations, *except* those that are 4.1-specific (since |
| 1562 | * sessions provide their own EOS), and except for stateful |
| 1563 | * operations other than setclientid and setclientid_confirm |
| 1564 | * (since sequence numbers provide EOS for open, lock, etc in |
| 1565 | * the v4.0 case). |
| 1566 | */ |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 1567 | OP_CACHEME = 1 << 6, |
Tigran Mkrtchyan | 8b70484 | 2012-02-13 22:55:24 +0100 | [diff] [blame] | 1568 | /* |
| 1569 | * These are ops which clear current state id. |
| 1570 | */ |
| 1571 | OP_CLEAR_STATEID = 1 << 7, |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 1572 | }; |
| 1573 | |
| 1574 | struct nfsd4_operation { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 1575 | __be32 (*op_func)(struct svc_rqst *, struct nfsd4_compound_state *, |
| 1576 | union nfsd4_op_u *); |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 1577 | u32 op_flags; |
| 1578 | char *op_name; |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1579 | /* Try to get response size before operation */ |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 1580 | u32 (*op_rsize_bop)(struct svc_rqst *, struct nfsd4_op *); |
Christoph Hellwig | 57832e7 | 2017-05-08 20:37:33 +0200 | [diff] [blame] | 1581 | void (*op_get_currentstateid)(struct nfsd4_compound_state *, |
| 1582 | union nfsd4_op_u *); |
Christoph Hellwig | b60e985 | 2017-05-08 20:03:15 +0200 | [diff] [blame] | 1583 | void (*op_set_currentstateid)(struct nfsd4_compound_state *, |
| 1584 | union nfsd4_op_u *); |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1585 | }; |
| 1586 | |
| 1587 | static struct nfsd4_operation nfsd4_ops[]; |
| 1588 | |
Adrian Bunk | f1c7f79 | 2008-08-08 19:26:42 +0300 | [diff] [blame] | 1589 | static const char *nfsd4_op_name(unsigned opnum); |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1590 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1591 | /* |
J. Bruce Fields | 5771635 | 2010-04-21 12:27:19 -0400 | [diff] [blame] | 1592 | * Enforce NFSv4.1 COMPOUND ordering rules: |
Andy Adamson | f9bb94c4 | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1593 | * |
J. Bruce Fields | 5771635 | 2010-04-21 12:27:19 -0400 | [diff] [blame] | 1594 | * Also note, enforced elsewhere: |
| 1595 | * - SEQUENCE other than as first op results in |
| 1596 | * NFS4ERR_SEQUENCE_POS. (Enforced in nfsd4_sequence().) |
J. Bruce Fields | 1d1bc8f | 2010-10-04 23:12:59 -0400 | [diff] [blame] | 1597 | * - BIND_CONN_TO_SESSION must be the only op in its compound. |
| 1598 | * (Enforced in nfsd4_bind_conn_to_session().) |
J. Bruce Fields | 5771635 | 2010-04-21 12:27:19 -0400 | [diff] [blame] | 1599 | * - DESTROY_SESSION must be the final operation in a compound, if |
| 1600 | * sessionid's in SEQUENCE and DESTROY_SESSION are the same. |
| 1601 | * (Enforced in nfsd4_destroy_session().) |
Andy Adamson | f9bb94c4 | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1602 | */ |
J. Bruce Fields | 5771635 | 2010-04-21 12:27:19 -0400 | [diff] [blame] | 1603 | static __be32 nfs41_check_op_ordering(struct nfsd4_compoundargs *args) |
Andy Adamson | f9bb94c4 | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1604 | { |
J. Bruce Fields | 5771635 | 2010-04-21 12:27:19 -0400 | [diff] [blame] | 1605 | struct nfsd4_op *op = &args->ops[0]; |
| 1606 | |
| 1607 | /* These ordering requirements don't apply to NFSv4.0: */ |
| 1608 | if (args->minorversion == 0) |
| 1609 | return nfs_ok; |
| 1610 | /* This is weird, but OK, not our problem: */ |
| 1611 | if (args->opcnt == 0) |
| 1612 | return nfs_ok; |
| 1613 | if (op->status == nfserr_op_illegal) |
| 1614 | return nfs_ok; |
| 1615 | if (!(nfsd4_ops[op->opnum].op_flags & ALLOWED_AS_FIRST_OP)) |
| 1616 | return nfserr_op_not_in_session; |
| 1617 | if (op->opnum == OP_SEQUENCE) |
| 1618 | return nfs_ok; |
| 1619 | if (args->opcnt != 1) |
| 1620 | return nfserr_not_only_op; |
| 1621 | return nfs_ok; |
Andy Adamson | f9bb94c4 | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1622 | } |
| 1623 | |
J. Bruce Fields | 22b0321 | 2011-04-09 11:23:24 -0400 | [diff] [blame] | 1624 | static inline struct nfsd4_operation *OPDESC(struct nfsd4_op *op) |
| 1625 | { |
| 1626 | return &nfsd4_ops[op->opnum]; |
| 1627 | } |
| 1628 | |
J. Bruce Fields | 1091006 | 2011-01-24 12:11:02 -0500 | [diff] [blame] | 1629 | bool nfsd4_cache_this_op(struct nfsd4_op *op) |
| 1630 | { |
J. Bruce Fields | e372ba6 | 2014-05-19 12:27:11 -0400 | [diff] [blame] | 1631 | if (op->opnum == OP_ILLEGAL) |
| 1632 | return false; |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 1633 | return OPDESC(op)->op_flags & OP_CACHEME; |
J. Bruce Fields | 1091006 | 2011-01-24 12:11:02 -0500 | [diff] [blame] | 1634 | } |
| 1635 | |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1636 | static bool need_wrongsec_check(struct svc_rqst *rqstp) |
| 1637 | { |
| 1638 | struct nfsd4_compoundres *resp = rqstp->rq_resp; |
| 1639 | struct nfsd4_compoundargs *argp = rqstp->rq_argp; |
| 1640 | struct nfsd4_op *this = &argp->ops[resp->opcnt - 1]; |
| 1641 | struct nfsd4_op *next = &argp->ops[resp->opcnt]; |
| 1642 | struct nfsd4_operation *thisd; |
| 1643 | struct nfsd4_operation *nextd; |
| 1644 | |
| 1645 | thisd = OPDESC(this); |
| 1646 | /* |
| 1647 | * Most ops check wronsec on our own; only the putfh-like ops |
| 1648 | * have special rules. |
| 1649 | */ |
| 1650 | if (!(thisd->op_flags & OP_IS_PUTFH_LIKE)) |
| 1651 | return false; |
| 1652 | /* |
| 1653 | * rfc 5661 2.6.3.1.1.6: don't bother erroring out a |
| 1654 | * put-filehandle operation if we're not going to use the |
| 1655 | * result: |
| 1656 | */ |
| 1657 | if (argp->opcnt == resp->opcnt) |
| 1658 | return false; |
J. Bruce Fields | 51904b0 | 2014-10-22 14:46:29 -0400 | [diff] [blame] | 1659 | if (next->opnum == OP_ILLEGAL) |
| 1660 | return false; |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1661 | nextd = OPDESC(next); |
| 1662 | /* |
| 1663 | * Rest of 2.6.3.1.1: certain operations will return WRONGSEC |
| 1664 | * errors themselves as necessary; others should check for them |
| 1665 | * now: |
| 1666 | */ |
| 1667 | return !(nextd->op_flags & OP_HANDLES_WRONGSEC); |
| 1668 | } |
| 1669 | |
J. Bruce Fields | 2d124dfaa | 2014-01-15 16:26:42 -0500 | [diff] [blame] | 1670 | static void svcxdr_init_encode(struct svc_rqst *rqstp, |
| 1671 | struct nfsd4_compoundres *resp) |
| 1672 | { |
| 1673 | struct xdr_stream *xdr = &resp->xdr; |
| 1674 | struct xdr_buf *buf = &rqstp->rq_res; |
| 1675 | struct kvec *head = buf->head; |
| 1676 | |
| 1677 | xdr->buf = buf; |
J. Bruce Fields | ddd1ea5 | 2013-08-27 21:32:25 -0400 | [diff] [blame] | 1678 | xdr->iov = head; |
J. Bruce Fields | 2d124dfaa | 2014-01-15 16:26:42 -0500 | [diff] [blame] | 1679 | xdr->p = head->iov_base + head->iov_len; |
J. Bruce Fields | a5cddc8 | 2014-05-12 18:10:58 -0400 | [diff] [blame] | 1680 | xdr->end = head->iov_base + PAGE_SIZE - rqstp->rq_auth_slack; |
J. Bruce Fields | 6ac9039 | 2014-02-26 17:39:35 -0500 | [diff] [blame] | 1681 | /* Tail and page_len should be zero at this point: */ |
| 1682 | buf->len = buf->head[0].iov_len; |
J. Bruce Fields | 2825a7f | 2013-08-26 16:04:46 -0400 | [diff] [blame] | 1683 | xdr->scratch.iov_len = 0; |
J. Bruce Fields | 05638dc | 2014-06-02 12:05:47 -0400 | [diff] [blame] | 1684 | xdr->page_ptr = buf->pages - 1; |
J. Bruce Fields | 2825a7f | 2013-08-26 16:04:46 -0400 | [diff] [blame] | 1685 | buf->buflen = PAGE_SIZE * (1 + rqstp->rq_page_end - buf->pages) |
J. Bruce Fields | a5cddc8 | 2014-05-12 18:10:58 -0400 | [diff] [blame] | 1686 | - rqstp->rq_auth_slack; |
J. Bruce Fields | 2d124dfaa | 2014-01-15 16:26:42 -0500 | [diff] [blame] | 1687 | } |
| 1688 | |
Andy Adamson | f9bb94c4 | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1689 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1690 | * COMPOUND call. |
| 1691 | */ |
Al Viro | 7111c66 | 2006-10-19 23:28:45 -0700 | [diff] [blame] | 1692 | static __be32 |
Christoph Hellwig | a6beb73 | 2017-05-08 17:35:49 +0200 | [diff] [blame] | 1693 | nfsd4_proc_compound(struct svc_rqst *rqstp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1694 | { |
Christoph Hellwig | a6beb73 | 2017-05-08 17:35:49 +0200 | [diff] [blame] | 1695 | struct nfsd4_compoundargs *args = rqstp->rq_argp; |
| 1696 | struct nfsd4_compoundres *resp = rqstp->rq_resp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1697 | struct nfsd4_op *op; |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1698 | struct nfsd4_operation *opdesc; |
Andy Adamson | e354d57 | 2009-03-28 11:30:52 +0300 | [diff] [blame] | 1699 | struct nfsd4_compound_state *cstate = &resp->cstate; |
Kinglong Mee | 4daeed2 | 2014-03-26 17:10:37 +0800 | [diff] [blame] | 1700 | struct svc_fh *current_fh = &cstate->current_fh; |
| 1701 | struct svc_fh *save_fh = &cstate->save_fh; |
Al Viro | b37ad28 | 2006-10-19 23:28:59 -0700 | [diff] [blame] | 1702 | __be32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1703 | |
J. Bruce Fields | 2d124dfaa | 2014-01-15 16:26:42 -0500 | [diff] [blame] | 1704 | svcxdr_init_encode(rqstp, resp); |
J. Bruce Fields | 4aea24b | 2014-01-15 15:17:58 -0500 | [diff] [blame] | 1705 | resp->tagp = resp->xdr.p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1706 | /* reserve space for: taglen, tag, and opcnt */ |
J. Bruce Fields | d3f627c | 2014-02-26 17:00:38 -0500 | [diff] [blame] | 1707 | xdr_reserve_space(&resp->xdr, 8 + args->taglen); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1708 | resp->taglen = args->taglen; |
| 1709 | resp->tag = args->tag; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1710 | resp->rqstp = rqstp; |
Kinglong Mee | 4daeed2 | 2014-03-26 17:10:37 +0800 | [diff] [blame] | 1711 | cstate->minorversion = args->minorversion; |
Kinglong Mee | 4daeed2 | 2014-03-26 17:10:37 +0800 | [diff] [blame] | 1712 | fh_init(current_fh, NFS4_FHSIZE); |
| 1713 | fh_init(save_fh, NFS4_FHSIZE); |
NeilBrown | 8ff30fa | 2010-08-12 17:04:07 +1000 | [diff] [blame] | 1714 | /* |
| 1715 | * Don't use the deferral mechanism for NFSv4; compounds make it |
| 1716 | * too hard to avoid non-idempotency problems. |
| 1717 | */ |
Jeff Layton | 30660e04b | 2014-11-19 07:51:16 -0500 | [diff] [blame] | 1718 | clear_bit(RQ_USEDEFERRAL, &rqstp->rq_flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1719 | |
| 1720 | /* |
| 1721 | * According to RFC3010, this takes precedence over all other errors. |
| 1722 | */ |
| 1723 | status = nfserr_minor_vers_mismatch; |
J. Bruce Fields | 35f7a14 | 2013-07-08 19:51:44 -0400 | [diff] [blame] | 1724 | if (nfsd_minorversion(args->minorversion, NFSD_TEST) <= 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1725 | goto out; |
| 1726 | |
J. Bruce Fields | 5771635 | 2010-04-21 12:27:19 -0400 | [diff] [blame] | 1727 | status = nfs41_check_op_ordering(args); |
| 1728 | if (status) { |
Andy Adamson | f9bb94c4 | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1729 | op = &args->ops[0]; |
J. Bruce Fields | 5771635 | 2010-04-21 12:27:19 -0400 | [diff] [blame] | 1730 | op->status = status; |
Andy Adamson | f9bb94c4 | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 1731 | goto encode_op; |
| 1732 | } |
| 1733 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1734 | while (!status && resp->opcnt < args->opcnt) { |
| 1735 | op = &args->ops[resp->opcnt++]; |
| 1736 | |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 1737 | dprintk("nfsv4 compound op #%d/%d: %d (%s)\n", |
| 1738 | resp->opcnt, args->opcnt, op->opnum, |
| 1739 | nfsd4_op_name(op->opnum)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1740 | /* |
| 1741 | * The XDR decode routines may have pre-set op->status; |
| 1742 | * for example, if there is a miscellaneous XDR error |
| 1743 | * it will be set to nfserr_bad_xdr. |
| 1744 | */ |
J. Bruce Fields | 9d313b1 | 2013-02-28 12:51:49 -0800 | [diff] [blame] | 1745 | if (op->status) { |
| 1746 | if (op->opnum == OP_OPEN) |
| 1747 | op->status = nfsd4_open_omfg(rqstp, cstate, op); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1748 | goto encode_op; |
J. Bruce Fields | 9d313b1 | 2013-02-28 12:51:49 -0800 | [diff] [blame] | 1749 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1750 | |
J. Bruce Fields | 22b0321 | 2011-04-09 11:23:24 -0400 | [diff] [blame] | 1751 | opdesc = OPDESC(op); |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1752 | |
Kinglong Mee | 4daeed2 | 2014-03-26 17:10:37 +0800 | [diff] [blame] | 1753 | if (!current_fh->fh_dentry) { |
J.Bruce Fields | 27d630e | 2006-12-13 00:35:43 -0800 | [diff] [blame] | 1754 | if (!(opdesc->op_flags & ALLOWED_WITHOUT_FH)) { |
J.Bruce Fields | 42ca099 | 2006-10-04 02:16:20 -0700 | [diff] [blame] | 1755 | op->status = nfserr_nofilehandle; |
| 1756 | goto encode_op; |
| 1757 | } |
Kinglong Mee | 4daeed2 | 2014-03-26 17:10:37 +0800 | [diff] [blame] | 1758 | } else if (current_fh->fh_export->ex_fslocs.migrated && |
J.Bruce Fields | eeac294 | 2006-12-13 00:35:39 -0800 | [diff] [blame] | 1759 | !(opdesc->op_flags & ALLOWED_ON_ABSENT_FS)) { |
J.Bruce Fields | 42ca099 | 2006-10-04 02:16:20 -0700 | [diff] [blame] | 1760 | op->status = nfserr_moved; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1761 | goto encode_op; |
| 1762 | } |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 1763 | |
Kinglong Mee | 2336745 | 2014-03-29 10:23:47 +0800 | [diff] [blame] | 1764 | fh_clear_wcc(current_fh); |
| 1765 | |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1766 | /* If op is non-idempotent */ |
| 1767 | if (opdesc->op_flags & OP_MODIFIES_SOMETHING) { |
J. Bruce Fields | 4c69d58 | 2014-01-28 16:01:04 -0500 | [diff] [blame] | 1768 | /* |
J. Bruce Fields | a8095f7 | 2014-03-11 17:54:34 -0400 | [diff] [blame] | 1769 | * Don't execute this op if we couldn't encode a |
| 1770 | * succesful reply: |
| 1771 | */ |
| 1772 | u32 plen = opdesc->op_rsize_bop(rqstp, op); |
| 1773 | /* |
| 1774 | * Plus if there's another operation, make sure |
J. Bruce Fields | 4c69d58 | 2014-01-28 16:01:04 -0500 | [diff] [blame] | 1775 | * we'll have space to at least encode an error: |
| 1776 | */ |
| 1777 | if (resp->opcnt < args->opcnt) |
| 1778 | plen += COMPOUND_ERR_SLACK_SPACE; |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1779 | op->status = nfsd4_check_resp_size(resp, plen); |
| 1780 | } |
| 1781 | |
| 1782 | if (op->status) |
| 1783 | goto encode_op; |
| 1784 | |
J. Bruce Fields | b600de7 | 2013-02-28 11:55:46 -0800 | [diff] [blame] | 1785 | if (opdesc->op_get_currentstateid) |
| 1786 | opdesc->op_get_currentstateid(cstate, &op->u); |
| 1787 | op->status = opdesc->op_func(rqstp, cstate, &op->u); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1788 | |
Tigran Mkrtchyan | 8b70484 | 2012-02-13 22:55:24 +0100 | [diff] [blame] | 1789 | if (!op->status) { |
| 1790 | if (opdesc->op_set_currentstateid) |
| 1791 | opdesc->op_set_currentstateid(cstate, &op->u); |
| 1792 | |
| 1793 | if (opdesc->op_flags & OP_CLEAR_STATEID) |
Tigran Mkrtchyan | 37c593c | 2012-02-13 22:55:32 +0100 | [diff] [blame] | 1794 | clear_current_stateid(cstate); |
Tigran Mkrtchyan | 8b70484 | 2012-02-13 22:55:24 +0100 | [diff] [blame] | 1795 | |
| 1796 | if (need_wrongsec_check(rqstp)) |
Kinglong Mee | 4daeed2 | 2014-03-26 17:10:37 +0800 | [diff] [blame] | 1797 | op->status = check_nfsd_access(current_fh->fh_export, rqstp); |
Tigran Mkrtchyan | 8b70484 | 2012-02-13 22:55:24 +0100 | [diff] [blame] | 1798 | } |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 1799 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1800 | encode_op: |
Andy Adamson | 49557cc | 2009-07-23 19:02:16 -0400 | [diff] [blame] | 1801 | /* Only from SEQUENCE */ |
Kinglong Mee | 4daeed2 | 2014-03-26 17:10:37 +0800 | [diff] [blame] | 1802 | if (cstate->status == nfserr_replay_cache) { |
Andy Adamson | da3846a | 2009-04-03 08:28:22 +0300 | [diff] [blame] | 1803 | dprintk("%s NFS4.1 replay from cache\n", __func__); |
Andy Adamson | abfabf8 | 2009-07-23 19:02:18 -0400 | [diff] [blame] | 1804 | status = op->status; |
Andy Adamson | da3846a | 2009-04-03 08:28:22 +0300 | [diff] [blame] | 1805 | goto out; |
| 1806 | } |
Al Viro | a90b061 | 2006-10-19 23:29:03 -0700 | [diff] [blame] | 1807 | if (op->status == nfserr_replay_me) { |
J.Bruce Fields | a4f1706a9 | 2006-12-13 00:35:28 -0800 | [diff] [blame] | 1808 | op->replay = &cstate->replay_owner->so_replay; |
J. Bruce Fields | d0a381d | 2014-01-30 17:18:38 -0500 | [diff] [blame] | 1809 | nfsd4_encode_replay(&resp->xdr, op); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1810 | status = op->status = op->replay->rp_status; |
| 1811 | } else { |
| 1812 | nfsd4_encode_operation(resp, op); |
| 1813 | status = op->status; |
| 1814 | } |
Benny Halevy | 0407717 | 2008-12-15 19:40:49 +0200 | [diff] [blame] | 1815 | |
| 1816 | dprintk("nfsv4 compound op %p opcnt %d #%d: %d: status %d\n", |
| 1817 | args->ops, args->opcnt, resp->opcnt, op->opnum, |
| 1818 | be32_to_cpu(status)); |
| 1819 | |
Jeff Layton | 58fb12e | 2014-07-29 21:34:27 -0400 | [diff] [blame] | 1820 | nfsd4_cstate_clear_replay(cstate); |
Shankar Anand | e2b2095 | 2006-07-10 04:45:44 -0700 | [diff] [blame] | 1821 | nfsd4_increment_op_stats(op->opnum); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1822 | } |
| 1823 | |
Kinglong Mee | 4daeed2 | 2014-03-26 17:10:37 +0800 | [diff] [blame] | 1824 | cstate->status = status; |
| 1825 | fh_put(current_fh); |
| 1826 | fh_put(save_fh); |
| 1827 | BUG_ON(cstate->replay_owner); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1828 | out: |
Andy Adamson | 2f42587 | 2009-04-03 08:27:32 +0300 | [diff] [blame] | 1829 | /* Reset deferral mechanism for RPC deferrals */ |
Jeff Layton | 30660e04b | 2014-11-19 07:51:16 -0500 | [diff] [blame] | 1830 | set_bit(RQ_USEDEFERRAL, &rqstp->rq_flags); |
J. Bruce Fields | 3b12cd9 | 2008-05-05 17:17:44 -0400 | [diff] [blame] | 1831 | dprintk("nfsv4 compound returned %d\n", ntohl(status)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1832 | return status; |
| 1833 | } |
| 1834 | |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1835 | #define op_encode_hdr_size (2) |
| 1836 | #define op_encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) |
| 1837 | #define op_encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) |
| 1838 | #define op_encode_change_info_maxsz (5) |
| 1839 | #define nfs4_fattr_bitmap_maxsz (4) |
| 1840 | |
J. Bruce Fields | 8c7424c | 2014-03-10 12:19:10 -0400 | [diff] [blame] | 1841 | /* We'll fall back on returning no lockowner if run out of space: */ |
| 1842 | #define op_encode_lockowner_maxsz (0) |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1843 | #define op_encode_lock_denied_maxsz (8 + op_encode_lockowner_maxsz) |
| 1844 | |
| 1845 | #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) |
| 1846 | |
| 1847 | #define op_encode_ace_maxsz (3 + nfs4_owner_maxsz) |
| 1848 | #define op_encode_delegation_maxsz (1 + op_encode_stateid_maxsz + 1 + \ |
| 1849 | op_encode_ace_maxsz) |
| 1850 | |
| 1851 | #define op_encode_channel_attrs_maxsz (6 + 1 + 1) |
| 1852 | |
| 1853 | static inline u32 nfsd4_only_status_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1854 | { |
| 1855 | return (op_encode_hdr_size) * sizeof(__be32); |
| 1856 | } |
| 1857 | |
| 1858 | static inline u32 nfsd4_status_stateid_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1859 | { |
| 1860 | return (op_encode_hdr_size + op_encode_stateid_maxsz)* sizeof(__be32); |
| 1861 | } |
| 1862 | |
Kinglong Mee | 2282cd2 | 2017-02-03 22:36:00 +0800 | [diff] [blame] | 1863 | static inline u32 nfsd4_access_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1864 | { |
| 1865 | /* ac_supported, ac_resp_access */ |
| 1866 | return (op_encode_hdr_size + 2)* sizeof(__be32); |
| 1867 | } |
| 1868 | |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1869 | static inline u32 nfsd4_commit_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1870 | { |
| 1871 | return (op_encode_hdr_size + op_encode_verifier_maxsz) * sizeof(__be32); |
| 1872 | } |
| 1873 | |
| 1874 | static inline u32 nfsd4_create_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1875 | { |
| 1876 | return (op_encode_hdr_size + op_encode_change_info_maxsz |
| 1877 | + nfs4_fattr_bitmap_maxsz) * sizeof(__be32); |
| 1878 | } |
| 1879 | |
J. Bruce Fields | b86cef6 | 2014-03-23 12:01:48 -0400 | [diff] [blame] | 1880 | /* |
| 1881 | * Note since this is an idempotent operation we won't insist on failing |
| 1882 | * the op prematurely if the estimate is too large. We may turn off splice |
| 1883 | * reads unnecessarily. |
| 1884 | */ |
| 1885 | static inline u32 nfsd4_getattr_rsize(struct svc_rqst *rqstp, |
| 1886 | struct nfsd4_op *op) |
| 1887 | { |
| 1888 | u32 *bmap = op->u.getattr.ga_bmval; |
| 1889 | u32 bmap0 = bmap[0], bmap1 = bmap[1], bmap2 = bmap[2]; |
| 1890 | u32 ret = 0; |
| 1891 | |
| 1892 | if (bmap0 & FATTR4_WORD0_ACL) |
| 1893 | return svc_max_payload(rqstp); |
| 1894 | if (bmap0 & FATTR4_WORD0_FS_LOCATIONS) |
| 1895 | return svc_max_payload(rqstp); |
| 1896 | |
| 1897 | if (bmap1 & FATTR4_WORD1_OWNER) { |
| 1898 | ret += IDMAP_NAMESZ + 4; |
| 1899 | bmap1 &= ~FATTR4_WORD1_OWNER; |
| 1900 | } |
| 1901 | if (bmap1 & FATTR4_WORD1_OWNER_GROUP) { |
| 1902 | ret += IDMAP_NAMESZ + 4; |
| 1903 | bmap1 &= ~FATTR4_WORD1_OWNER_GROUP; |
| 1904 | } |
| 1905 | if (bmap0 & FATTR4_WORD0_FILEHANDLE) { |
| 1906 | ret += NFS4_FHSIZE + 4; |
| 1907 | bmap0 &= ~FATTR4_WORD0_FILEHANDLE; |
| 1908 | } |
| 1909 | if (bmap2 & FATTR4_WORD2_SECURITY_LABEL) { |
Kinglong Mee | 1ec8c0c | 2015-03-28 23:46:09 +0800 | [diff] [blame] | 1910 | ret += NFS4_MAXLABELLEN + 12; |
J. Bruce Fields | b86cef6 | 2014-03-23 12:01:48 -0400 | [diff] [blame] | 1911 | bmap2 &= ~FATTR4_WORD2_SECURITY_LABEL; |
| 1912 | } |
| 1913 | /* |
| 1914 | * Largest of remaining attributes are 16 bytes (e.g., |
| 1915 | * supported_attributes) |
| 1916 | */ |
| 1917 | ret += 16 * (hweight32(bmap0) + hweight32(bmap1) + hweight32(bmap2)); |
| 1918 | /* bitmask, length */ |
| 1919 | ret += 20; |
| 1920 | return ret; |
| 1921 | } |
| 1922 | |
Kinglong Mee | 2282cd2 | 2017-02-03 22:36:00 +0800 | [diff] [blame] | 1923 | static inline u32 nfsd4_getfh_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1924 | { |
| 1925 | return (op_encode_hdr_size + 1) * sizeof(__be32) + NFS4_FHSIZE; |
| 1926 | } |
| 1927 | |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1928 | static inline u32 nfsd4_link_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1929 | { |
| 1930 | return (op_encode_hdr_size + op_encode_change_info_maxsz) |
| 1931 | * sizeof(__be32); |
| 1932 | } |
| 1933 | |
| 1934 | static inline u32 nfsd4_lock_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1935 | { |
| 1936 | return (op_encode_hdr_size + op_encode_lock_denied_maxsz) |
| 1937 | * sizeof(__be32); |
| 1938 | } |
| 1939 | |
| 1940 | static inline u32 nfsd4_open_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1941 | { |
| 1942 | return (op_encode_hdr_size + op_encode_stateid_maxsz |
| 1943 | + op_encode_change_info_maxsz + 1 |
| 1944 | + nfs4_fattr_bitmap_maxsz |
| 1945 | + op_encode_delegation_maxsz) * sizeof(__be32); |
| 1946 | } |
| 1947 | |
| 1948 | static inline u32 nfsd4_read_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1949 | { |
| 1950 | u32 maxcount = 0, rlen = 0; |
| 1951 | |
| 1952 | maxcount = svc_max_payload(rqstp); |
Kinglong Mee | 3c7aa15 | 2014-06-10 18:08:19 +0800 | [diff] [blame] | 1953 | rlen = min(op->u.read.rd_length, maxcount); |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1954 | |
J. Bruce Fields | 622f560 | 2014-05-16 14:38:20 -0400 | [diff] [blame] | 1955 | return (op_encode_hdr_size + 2 + XDR_QUADLEN(rlen)) * sizeof(__be32); |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1956 | } |
| 1957 | |
| 1958 | static inline u32 nfsd4_readdir_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1959 | { |
Kinglong Mee | 3c7aa15 | 2014-06-10 18:08:19 +0800 | [diff] [blame] | 1960 | u32 maxcount = 0, rlen = 0; |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1961 | |
Kinglong Mee | 3c7aa15 | 2014-06-10 18:08:19 +0800 | [diff] [blame] | 1962 | maxcount = svc_max_payload(rqstp); |
| 1963 | rlen = min(op->u.readdir.rd_maxcount, maxcount); |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1964 | |
J. Bruce Fields | 561f0ed | 2014-01-20 16:37:11 -0500 | [diff] [blame] | 1965 | return (op_encode_hdr_size + op_encode_verifier_maxsz + |
| 1966 | XDR_QUADLEN(rlen)) * sizeof(__be32); |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1967 | } |
| 1968 | |
Kinglong Mee | 2282cd2 | 2017-02-03 22:36:00 +0800 | [diff] [blame] | 1969 | static inline u32 nfsd4_readlink_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1970 | { |
| 1971 | return (op_encode_hdr_size + 1) * sizeof(__be32) + PAGE_SIZE; |
| 1972 | } |
| 1973 | |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1974 | static inline u32 nfsd4_remove_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1975 | { |
| 1976 | return (op_encode_hdr_size + op_encode_change_info_maxsz) |
| 1977 | * sizeof(__be32); |
| 1978 | } |
| 1979 | |
| 1980 | static inline u32 nfsd4_rename_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1981 | { |
| 1982 | return (op_encode_hdr_size + op_encode_change_info_maxsz |
| 1983 | + op_encode_change_info_maxsz) * sizeof(__be32); |
| 1984 | } |
| 1985 | |
J. Bruce Fields | ccae70a | 2014-03-23 09:34:22 -0700 | [diff] [blame] | 1986 | static inline u32 nfsd4_sequence_rsize(struct svc_rqst *rqstp, |
| 1987 | struct nfsd4_op *op) |
| 1988 | { |
J. Bruce Fields | d1d84c9 | 2014-08-21 15:04:31 -0400 | [diff] [blame] | 1989 | return (op_encode_hdr_size |
| 1990 | + XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5) * sizeof(__be32); |
J. Bruce Fields | ccae70a | 2014-03-23 09:34:22 -0700 | [diff] [blame] | 1991 | } |
| 1992 | |
Kinglong Mee | 2282cd2 | 2017-02-03 22:36:00 +0800 | [diff] [blame] | 1993 | static inline u32 nfsd4_test_stateid_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 1994 | { |
| 1995 | return (op_encode_hdr_size + 1 + op->u.test_stateid.ts_num_ids) |
| 1996 | * sizeof(__be32); |
| 1997 | } |
| 1998 | |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 1999 | static inline u32 nfsd4_setattr_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 2000 | { |
| 2001 | return (op_encode_hdr_size + nfs4_fattr_bitmap_maxsz) * sizeof(__be32); |
| 2002 | } |
| 2003 | |
Kinglong Mee | 2282cd2 | 2017-02-03 22:36:00 +0800 | [diff] [blame] | 2004 | static inline u32 nfsd4_secinfo_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 2005 | { |
| 2006 | return (op_encode_hdr_size + RPC_AUTH_MAXFLAVOR * |
| 2007 | (4 + XDR_QUADLEN(GSS_OID_MAX_LEN))) * sizeof(__be32); |
| 2008 | } |
| 2009 | |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 2010 | static inline u32 nfsd4_setclientid_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 2011 | { |
J. Bruce Fields | 480efae | 2014-03-10 14:17:55 -0400 | [diff] [blame] | 2012 | return (op_encode_hdr_size + 2 + XDR_QUADLEN(NFS4_VERIFIER_SIZE)) * |
| 2013 | sizeof(__be32); |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 2014 | } |
| 2015 | |
| 2016 | static inline u32 nfsd4_write_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 2017 | { |
J. Bruce Fields | f34e432 | 2014-05-16 21:24:56 -0400 | [diff] [blame] | 2018 | return (op_encode_hdr_size + 2 + op_encode_verifier_maxsz) * sizeof(__be32); |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 2019 | } |
| 2020 | |
| 2021 | static inline u32 nfsd4_exchange_id_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 2022 | { |
| 2023 | return (op_encode_hdr_size + 2 + 1 + /* eir_clientid, eir_sequenceid */\ |
Kinglong Mee | a8bb84b | 2013-12-10 15:24:36 +0800 | [diff] [blame] | 2024 | 1 + 1 + /* eir_flags, spr_how */\ |
| 2025 | 4 + /* spo_must_enforce & _allow with bitmap */\ |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 2026 | 2 + /*eir_server_owner.so_minor_id */\ |
| 2027 | /* eir_server_owner.so_major_id<> */\ |
| 2028 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 +\ |
| 2029 | /* eir_server_scope<> */\ |
| 2030 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 +\ |
| 2031 | 1 + /* eir_server_impl_id array length */\ |
| 2032 | 0 /* ignored eir_server_impl_id contents */) * sizeof(__be32); |
| 2033 | } |
| 2034 | |
| 2035 | static inline u32 nfsd4_bind_conn_to_session_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 2036 | { |
| 2037 | return (op_encode_hdr_size + \ |
| 2038 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + /* bctsr_sessid */\ |
| 2039 | 2 /* bctsr_dir, use_conn_in_rdma_mode */) * sizeof(__be32); |
| 2040 | } |
| 2041 | |
| 2042 | static inline u32 nfsd4_create_session_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 2043 | { |
| 2044 | return (op_encode_hdr_size + \ |
| 2045 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + /* sessionid */\ |
| 2046 | 2 + /* csr_sequence, csr_flags */\ |
| 2047 | op_encode_channel_attrs_maxsz + \ |
| 2048 | op_encode_channel_attrs_maxsz) * sizeof(__be32); |
| 2049 | } |
| 2050 | |
Anna Schumaker | 29ae7f9 | 2016-09-07 15:57:30 -0400 | [diff] [blame] | 2051 | static inline u32 nfsd4_copy_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 2052 | { |
| 2053 | return (op_encode_hdr_size + |
| 2054 | 1 /* wr_callback */ + |
| 2055 | op_encode_stateid_maxsz /* wr_callback */ + |
| 2056 | 2 /* wr_count */ + |
| 2057 | 1 /* wr_committed */ + |
| 2058 | op_encode_verifier_maxsz + |
| 2059 | 1 /* cr_consecutive */ + |
| 2060 | 1 /* cr_synchronous */) * sizeof(__be32); |
| 2061 | } |
| 2062 | |
Christoph Hellwig | 9cf514c | 2014-05-05 13:11:59 +0200 | [diff] [blame] | 2063 | #ifdef CONFIG_NFSD_PNFS |
Kinglong Mee | 2282cd2 | 2017-02-03 22:36:00 +0800 | [diff] [blame] | 2064 | static inline u32 nfsd4_getdeviceinfo_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 2065 | { |
| 2066 | u32 maxcount = 0, rlen = 0; |
| 2067 | |
| 2068 | maxcount = svc_max_payload(rqstp); |
| 2069 | rlen = min(op->u.getdeviceinfo.gd_maxcount, maxcount); |
| 2070 | |
| 2071 | return (op_encode_hdr_size + |
| 2072 | 1 /* gd_layout_type*/ + |
| 2073 | XDR_QUADLEN(rlen) + |
| 2074 | 2 /* gd_notify_types */) * sizeof(__be32); |
| 2075 | } |
| 2076 | |
Christoph Hellwig | 9cf514c | 2014-05-05 13:11:59 +0200 | [diff] [blame] | 2077 | /* |
| 2078 | * At this stage we don't really know what layout driver will handle the request, |
| 2079 | * so we need to define an arbitrary upper bound here. |
| 2080 | */ |
| 2081 | #define MAX_LAYOUT_SIZE 128 |
| 2082 | static inline u32 nfsd4_layoutget_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 2083 | { |
| 2084 | return (op_encode_hdr_size + |
| 2085 | 1 /* logr_return_on_close */ + |
| 2086 | op_encode_stateid_maxsz + |
| 2087 | 1 /* nr of layouts */ + |
| 2088 | MAX_LAYOUT_SIZE) * sizeof(__be32); |
| 2089 | } |
| 2090 | |
| 2091 | static inline u32 nfsd4_layoutcommit_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 2092 | { |
| 2093 | return (op_encode_hdr_size + |
| 2094 | 1 /* locr_newsize */ + |
| 2095 | 2 /* ns_size */) * sizeof(__be32); |
| 2096 | } |
| 2097 | |
| 2098 | static inline u32 nfsd4_layoutreturn_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 2099 | { |
| 2100 | return (op_encode_hdr_size + |
| 2101 | 1 /* lrs_stateid */ + |
| 2102 | op_encode_stateid_maxsz) * sizeof(__be32); |
| 2103 | } |
| 2104 | #endif /* CONFIG_NFSD_PNFS */ |
| 2105 | |
Kinglong Mee | 2282cd2 | 2017-02-03 22:36:00 +0800 | [diff] [blame] | 2106 | |
| 2107 | static inline u32 nfsd4_seek_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 2108 | { |
| 2109 | return (op_encode_hdr_size + 3) * sizeof(__be32); |
| 2110 | } |
| 2111 | |
Benny Halevy | 2076601 | 2009-03-28 11:32:05 +0300 | [diff] [blame] | 2112 | static struct nfsd4_operation nfsd4_ops[] = { |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 2113 | [OP_ACCESS] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2114 | .op_func = nfsd4_access, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 2115 | .op_name = "OP_ACCESS", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2116 | .op_rsize_bop = nfsd4_access_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 2117 | }, |
| 2118 | [OP_CLOSE] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2119 | .op_func = nfsd4_close, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 2120 | .op_flags = OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 2121 | .op_name = "OP_CLOSE", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2122 | .op_rsize_bop = nfsd4_status_stateid_rsize, |
Christoph Hellwig | 57832e7 | 2017-05-08 20:37:33 +0200 | [diff] [blame] | 2123 | .op_get_currentstateid = nfsd4_get_closestateid, |
Christoph Hellwig | b60e985 | 2017-05-08 20:03:15 +0200 | [diff] [blame] | 2124 | .op_set_currentstateid = nfsd4_set_closestateid, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 2125 | }, |
| 2126 | [OP_COMMIT] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2127 | .op_func = nfsd4_commit, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 2128 | .op_flags = OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 2129 | .op_name = "OP_COMMIT", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2130 | .op_rsize_bop = nfsd4_commit_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 2131 | }, |
| 2132 | [OP_CREATE] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2133 | .op_func = nfsd4_create, |
Tigran Mkrtchyan | d147105 | 2012-02-13 22:55:29 +0100 | [diff] [blame] | 2134 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME | OP_CLEAR_STATEID, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 2135 | .op_name = "OP_CREATE", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2136 | .op_rsize_bop = nfsd4_create_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 2137 | }, |
| 2138 | [OP_DELEGRETURN] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2139 | .op_func = nfsd4_delegreturn, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 2140 | .op_flags = OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 2141 | .op_name = "OP_DELEGRETURN", |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 2142 | .op_rsize_bop = nfsd4_only_status_rsize, |
Christoph Hellwig | 57832e7 | 2017-05-08 20:37:33 +0200 | [diff] [blame] | 2143 | .op_get_currentstateid = nfsd4_get_delegreturnstateid, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 2144 | }, |
| 2145 | [OP_GETATTR] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2146 | .op_func = nfsd4_getattr, |
J.Bruce Fields | eeac294 | 2006-12-13 00:35:39 -0800 | [diff] [blame] | 2147 | .op_flags = ALLOWED_ON_ABSENT_FS, |
J. Bruce Fields | b86cef6 | 2014-03-23 12:01:48 -0400 | [diff] [blame] | 2148 | .op_rsize_bop = nfsd4_getattr_rsize, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 2149 | .op_name = "OP_GETATTR", |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 2150 | }, |
| 2151 | [OP_GETFH] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2152 | .op_func = nfsd4_getfh, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 2153 | .op_name = "OP_GETFH", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2154 | .op_rsize_bop = nfsd4_getfh_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 2155 | }, |
| 2156 | [OP_LINK] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2157 | .op_func = nfsd4_link, |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 2158 | .op_flags = ALLOWED_ON_ABSENT_FS | OP_MODIFIES_SOMETHING |
| 2159 | | OP_CACHEME, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 2160 | .op_name = "OP_LINK", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2161 | .op_rsize_bop = nfsd4_link_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 2162 | }, |
| 2163 | [OP_LOCK] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2164 | .op_func = nfsd4_lock, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 2165 | .op_flags = OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 2166 | .op_name = "OP_LOCK", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2167 | .op_rsize_bop = nfsd4_lock_rsize, |
Christoph Hellwig | b60e985 | 2017-05-08 20:03:15 +0200 | [diff] [blame] | 2168 | .op_set_currentstateid = nfsd4_set_lockstateid, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 2169 | }, |
| 2170 | [OP_LOCKT] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2171 | .op_func = nfsd4_lockt, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 2172 | .op_name = "OP_LOCKT", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2173 | .op_rsize_bop = nfsd4_lock_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 2174 | }, |
| 2175 | [OP_LOCKU] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2176 | .op_func = nfsd4_locku, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 2177 | .op_flags = OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 2178 | .op_name = "OP_LOCKU", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2179 | .op_rsize_bop = nfsd4_status_stateid_rsize, |
Christoph Hellwig | 57832e7 | 2017-05-08 20:37:33 +0200 | [diff] [blame] | 2180 | .op_get_currentstateid = nfsd4_get_lockustateid, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 2181 | }, |
| 2182 | [OP_LOOKUP] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2183 | .op_func = nfsd4_lookup, |
Tigran Mkrtchyan | d147105 | 2012-02-13 22:55:29 +0100 | [diff] [blame] | 2184 | .op_flags = OP_HANDLES_WRONGSEC | OP_CLEAR_STATEID, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 2185 | .op_name = "OP_LOOKUP", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2186 | .op_rsize_bop = nfsd4_only_status_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 2187 | }, |
| 2188 | [OP_LOOKUPP] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2189 | .op_func = nfsd4_lookupp, |
Tigran Mkrtchyan | d147105 | 2012-02-13 22:55:29 +0100 | [diff] [blame] | 2190 | .op_flags = OP_HANDLES_WRONGSEC | OP_CLEAR_STATEID, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 2191 | .op_name = "OP_LOOKUPP", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2192 | .op_rsize_bop = nfsd4_only_status_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 2193 | }, |
| 2194 | [OP_NVERIFY] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2195 | .op_func = nfsd4_nverify, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 2196 | .op_name = "OP_NVERIFY", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2197 | .op_rsize_bop = nfsd4_only_status_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 2198 | }, |
| 2199 | [OP_OPEN] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2200 | .op_func = nfsd4_open, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 2201 | .op_flags = OP_HANDLES_WRONGSEC | OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 2202 | .op_name = "OP_OPEN", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2203 | .op_rsize_bop = nfsd4_open_rsize, |
Christoph Hellwig | b60e985 | 2017-05-08 20:03:15 +0200 | [diff] [blame] | 2204 | .op_set_currentstateid = nfsd4_set_openstateid, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 2205 | }, |
| 2206 | [OP_OPEN_CONFIRM] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2207 | .op_func = nfsd4_open_confirm, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 2208 | .op_flags = OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 2209 | .op_name = "OP_OPEN_CONFIRM", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2210 | .op_rsize_bop = nfsd4_status_stateid_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 2211 | }, |
| 2212 | [OP_OPEN_DOWNGRADE] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2213 | .op_func = nfsd4_open_downgrade, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 2214 | .op_flags = OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 2215 | .op_name = "OP_OPEN_DOWNGRADE", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2216 | .op_rsize_bop = nfsd4_status_stateid_rsize, |
Christoph Hellwig | 57832e7 | 2017-05-08 20:37:33 +0200 | [diff] [blame] | 2217 | .op_get_currentstateid = nfsd4_get_opendowngradestateid, |
Christoph Hellwig | b60e985 | 2017-05-08 20:03:15 +0200 | [diff] [blame] | 2218 | .op_set_currentstateid = nfsd4_set_opendowngradestateid, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 2219 | }, |
| 2220 | [OP_PUTFH] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2221 | .op_func = nfsd4_putfh, |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 2222 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
J. Bruce Fields | 5b64869 | 2014-03-07 11:43:58 -0500 | [diff] [blame] | 2223 | | OP_IS_PUTFH_LIKE | OP_CLEAR_STATEID, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 2224 | .op_name = "OP_PUTFH", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2225 | .op_rsize_bop = nfsd4_only_status_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 2226 | }, |
J.Bruce Fields | eeac294 | 2006-12-13 00:35:39 -0800 | [diff] [blame] | 2227 | [OP_PUTPUBFH] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2228 | .op_func = nfsd4_putrootfh, |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 2229 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
J. Bruce Fields | 5b64869 | 2014-03-07 11:43:58 -0500 | [diff] [blame] | 2230 | | OP_IS_PUTFH_LIKE | OP_CLEAR_STATEID, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 2231 | .op_name = "OP_PUTPUBFH", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2232 | .op_rsize_bop = nfsd4_only_status_rsize, |
J.Bruce Fields | eeac294 | 2006-12-13 00:35:39 -0800 | [diff] [blame] | 2233 | }, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 2234 | [OP_PUTROOTFH] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2235 | .op_func = nfsd4_putrootfh, |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 2236 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
J. Bruce Fields | 5b64869 | 2014-03-07 11:43:58 -0500 | [diff] [blame] | 2237 | | OP_IS_PUTFH_LIKE | OP_CLEAR_STATEID, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 2238 | .op_name = "OP_PUTROOTFH", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2239 | .op_rsize_bop = nfsd4_only_status_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 2240 | }, |
| 2241 | [OP_READ] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2242 | .op_func = nfsd4_read, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 2243 | .op_name = "OP_READ", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2244 | .op_rsize_bop = nfsd4_read_rsize, |
Christoph Hellwig | 57832e7 | 2017-05-08 20:37:33 +0200 | [diff] [blame] | 2245 | .op_get_currentstateid = nfsd4_get_readstateid, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 2246 | }, |
| 2247 | [OP_READDIR] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2248 | .op_func = nfsd4_readdir, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 2249 | .op_name = "OP_READDIR", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2250 | .op_rsize_bop = nfsd4_readdir_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 2251 | }, |
| 2252 | [OP_READLINK] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2253 | .op_func = nfsd4_readlink, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 2254 | .op_name = "OP_READLINK", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2255 | .op_rsize_bop = nfsd4_readlink_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 2256 | }, |
| 2257 | [OP_REMOVE] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2258 | .op_func = nfsd4_remove, |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 2259 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 2260 | .op_name = "OP_REMOVE", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2261 | .op_rsize_bop = nfsd4_remove_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 2262 | }, |
| 2263 | [OP_RENAME] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2264 | .op_func = nfsd4_rename, |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 2265 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 2266 | .op_name = "OP_RENAME", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2267 | .op_rsize_bop = nfsd4_rename_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 2268 | }, |
| 2269 | [OP_RENEW] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2270 | .op_func = nfsd4_renew, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 2271 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
| 2272 | | OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 2273 | .op_name = "OP_RENEW", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2274 | .op_rsize_bop = nfsd4_only_status_rsize, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 2275 | |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 2276 | }, |
| 2277 | [OP_RESTOREFH] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2278 | .op_func = nfsd4_restorefh, |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 2279 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 2280 | | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 2281 | .op_name = "OP_RESTOREFH", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2282 | .op_rsize_bop = nfsd4_only_status_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 2283 | }, |
| 2284 | [OP_SAVEFH] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2285 | .op_func = nfsd4_savefh, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 2286 | .op_flags = OP_HANDLES_WRONGSEC | OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 2287 | .op_name = "OP_SAVEFH", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2288 | .op_rsize_bop = nfsd4_only_status_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 2289 | }, |
Andy Adamson | dcb488a3 | 2007-07-17 04:04:51 -0700 | [diff] [blame] | 2290 | [OP_SECINFO] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2291 | .op_func = nfsd4_secinfo, |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 2292 | .op_flags = OP_HANDLES_WRONGSEC, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 2293 | .op_name = "OP_SECINFO", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2294 | .op_rsize_bop = nfsd4_secinfo_rsize, |
Andy Adamson | dcb488a3 | 2007-07-17 04:04:51 -0700 | [diff] [blame] | 2295 | }, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 2296 | [OP_SETATTR] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2297 | .op_func = nfsd4_setattr, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 2298 | .op_name = "OP_SETATTR", |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 2299 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2300 | .op_rsize_bop = nfsd4_setattr_rsize, |
Christoph Hellwig | 57832e7 | 2017-05-08 20:37:33 +0200 | [diff] [blame] | 2301 | .op_get_currentstateid = nfsd4_get_setattrstateid, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 2302 | }, |
| 2303 | [OP_SETCLIENTID] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2304 | .op_func = nfsd4_setclientid, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 2305 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 2306 | | OP_MODIFIES_SOMETHING | OP_CACHEME, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 2307 | .op_name = "OP_SETCLIENTID", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2308 | .op_rsize_bop = nfsd4_setclientid_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 2309 | }, |
| 2310 | [OP_SETCLIENTID_CONFIRM] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2311 | .op_func = nfsd4_setclientid_confirm, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 2312 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 2313 | | OP_MODIFIES_SOMETHING | OP_CACHEME, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 2314 | .op_name = "OP_SETCLIENTID_CONFIRM", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2315 | .op_rsize_bop = nfsd4_only_status_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 2316 | }, |
| 2317 | [OP_VERIFY] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2318 | .op_func = nfsd4_verify, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 2319 | .op_name = "OP_VERIFY", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2320 | .op_rsize_bop = nfsd4_only_status_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 2321 | }, |
| 2322 | [OP_WRITE] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2323 | .op_func = nfsd4_write, |
J. Bruce Fields | c856694 | 2011-09-20 08:49:51 -0400 | [diff] [blame] | 2324 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 2325 | .op_name = "OP_WRITE", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2326 | .op_rsize_bop = nfsd4_write_rsize, |
Christoph Hellwig | 57832e7 | 2017-05-08 20:37:33 +0200 | [diff] [blame] | 2327 | .op_get_currentstateid = nfsd4_get_writestateid, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 2328 | }, |
| 2329 | [OP_RELEASE_LOCKOWNER] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2330 | .op_func = nfsd4_release_lockowner, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 2331 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
| 2332 | | OP_MODIFIES_SOMETHING, |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 2333 | .op_name = "OP_RELEASE_LOCKOWNER", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2334 | .op_rsize_bop = nfsd4_only_status_rsize, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 2335 | }, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 2336 | |
| 2337 | /* NFSv4.1 operations */ |
| 2338 | [OP_EXCHANGE_ID] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2339 | .op_func = nfsd4_exchange_id, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 2340 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
| 2341 | | OP_MODIFIES_SOMETHING, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 2342 | .op_name = "OP_EXCHANGE_ID", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2343 | .op_rsize_bop = nfsd4_exchange_id_rsize, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 2344 | }, |
J. Bruce Fields | cb73a9f | 2012-11-01 18:09:48 -0400 | [diff] [blame] | 2345 | [OP_BACKCHANNEL_CTL] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2346 | .op_func = nfsd4_backchannel_ctl, |
J. Bruce Fields | cb73a9f | 2012-11-01 18:09:48 -0400 | [diff] [blame] | 2347 | .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING, |
| 2348 | .op_name = "OP_BACKCHANNEL_CTL", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2349 | .op_rsize_bop = nfsd4_only_status_rsize, |
J. Bruce Fields | cb73a9f | 2012-11-01 18:09:48 -0400 | [diff] [blame] | 2350 | }, |
J. Bruce Fields | 1d1bc8f | 2010-10-04 23:12:59 -0400 | [diff] [blame] | 2351 | [OP_BIND_CONN_TO_SESSION] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2352 | .op_func = nfsd4_bind_conn_to_session, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 2353 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
| 2354 | | OP_MODIFIES_SOMETHING, |
J. Bruce Fields | 1d1bc8f | 2010-10-04 23:12:59 -0400 | [diff] [blame] | 2355 | .op_name = "OP_BIND_CONN_TO_SESSION", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2356 | .op_rsize_bop = nfsd4_bind_conn_to_session_rsize, |
J. Bruce Fields | 1d1bc8f | 2010-10-04 23:12:59 -0400 | [diff] [blame] | 2357 | }, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 2358 | [OP_CREATE_SESSION] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2359 | .op_func = nfsd4_create_session, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 2360 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
| 2361 | | OP_MODIFIES_SOMETHING, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 2362 | .op_name = "OP_CREATE_SESSION", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2363 | .op_rsize_bop = nfsd4_create_session_rsize, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 2364 | }, |
| 2365 | [OP_DESTROY_SESSION] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2366 | .op_func = nfsd4_destroy_session, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 2367 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
| 2368 | | OP_MODIFIES_SOMETHING, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 2369 | .op_name = "OP_DESTROY_SESSION", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2370 | .op_rsize_bop = nfsd4_only_status_rsize, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 2371 | }, |
| 2372 | [OP_SEQUENCE] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2373 | .op_func = nfsd4_sequence, |
Andy Adamson | f9bb94c4 | 2009-04-03 08:28:12 +0300 | [diff] [blame] | 2374 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 2375 | .op_name = "OP_SEQUENCE", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2376 | .op_rsize_bop = nfsd4_sequence_rsize, |
Andy Adamson | 069b6ad | 2009-04-03 08:27:58 +0300 | [diff] [blame] | 2377 | }, |
Benny Halevy | 094b5d7 | 2011-06-16 11:39:10 -0400 | [diff] [blame] | 2378 | [OP_DESTROY_CLIENTID] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2379 | .op_func = nfsd4_destroy_clientid, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 2380 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
| 2381 | | OP_MODIFIES_SOMETHING, |
Benny Halevy | 094b5d7 | 2011-06-16 11:39:10 -0400 | [diff] [blame] | 2382 | .op_name = "OP_DESTROY_CLIENTID", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2383 | .op_rsize_bop = nfsd4_only_status_rsize, |
Benny Halevy | 094b5d7 | 2011-06-16 11:39:10 -0400 | [diff] [blame] | 2384 | }, |
J. Bruce Fields | 4dc6ec0 | 2010-04-19 15:11:28 -0400 | [diff] [blame] | 2385 | [OP_RECLAIM_COMPLETE] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2386 | .op_func = nfsd4_reclaim_complete, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 2387 | .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING, |
J. Bruce Fields | 4dc6ec0 | 2010-04-19 15:11:28 -0400 | [diff] [blame] | 2388 | .op_name = "OP_RECLAIM_COMPLETE", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2389 | .op_rsize_bop = nfsd4_only_status_rsize, |
J. Bruce Fields | 4dc6ec0 | 2010-04-19 15:11:28 -0400 | [diff] [blame] | 2390 | }, |
J. Bruce Fields | 04f4ad1 | 2010-12-16 09:51:13 -0500 | [diff] [blame] | 2391 | [OP_SECINFO_NO_NAME] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2392 | .op_func = nfsd4_secinfo_no_name, |
J. Bruce Fields | 68d9318 | 2011-04-08 17:00:50 -0400 | [diff] [blame] | 2393 | .op_flags = OP_HANDLES_WRONGSEC, |
J. Bruce Fields | 04f4ad1 | 2010-12-16 09:51:13 -0500 | [diff] [blame] | 2394 | .op_name = "OP_SECINFO_NO_NAME", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2395 | .op_rsize_bop = nfsd4_secinfo_rsize, |
J. Bruce Fields | 04f4ad1 | 2010-12-16 09:51:13 -0500 | [diff] [blame] | 2396 | }, |
Bryan Schumaker | 1745680 | 2011-07-13 10:50:48 -0400 | [diff] [blame] | 2397 | [OP_TEST_STATEID] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2398 | .op_func = nfsd4_test_stateid, |
Bryan Schumaker | 1745680 | 2011-07-13 10:50:48 -0400 | [diff] [blame] | 2399 | .op_flags = ALLOWED_WITHOUT_FH, |
| 2400 | .op_name = "OP_TEST_STATEID", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2401 | .op_rsize_bop = nfsd4_test_stateid_rsize, |
Bryan Schumaker | 1745680 | 2011-07-13 10:50:48 -0400 | [diff] [blame] | 2402 | }, |
Bryan Schumaker | e1ca12d | 2011-07-13 11:04:21 -0400 | [diff] [blame] | 2403 | [OP_FREE_STATEID] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2404 | .op_func = nfsd4_free_stateid, |
Mi Jinlong | 58e7b33 | 2011-08-28 18:18:56 +0800 | [diff] [blame] | 2405 | .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING, |
Bryan Schumaker | e1ca12d | 2011-07-13 11:04:21 -0400 | [diff] [blame] | 2406 | .op_name = "OP_FREE_STATEID", |
Christoph Hellwig | 57832e7 | 2017-05-08 20:37:33 +0200 | [diff] [blame] | 2407 | .op_get_currentstateid = nfsd4_get_freestateid, |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2408 | .op_rsize_bop = nfsd4_only_status_rsize, |
Bryan Schumaker | e1ca12d | 2011-07-13 11:04:21 -0400 | [diff] [blame] | 2409 | }, |
Christoph Hellwig | 9cf514c | 2014-05-05 13:11:59 +0200 | [diff] [blame] | 2410 | #ifdef CONFIG_NFSD_PNFS |
| 2411 | [OP_GETDEVICEINFO] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2412 | .op_func = nfsd4_getdeviceinfo, |
Christoph Hellwig | 9cf514c | 2014-05-05 13:11:59 +0200 | [diff] [blame] | 2413 | .op_flags = ALLOWED_WITHOUT_FH, |
| 2414 | .op_name = "OP_GETDEVICEINFO", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2415 | .op_rsize_bop = nfsd4_getdeviceinfo_rsize, |
Christoph Hellwig | 9cf514c | 2014-05-05 13:11:59 +0200 | [diff] [blame] | 2416 | }, |
| 2417 | [OP_LAYOUTGET] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2418 | .op_func = nfsd4_layoutget, |
Christoph Hellwig | 9cf514c | 2014-05-05 13:11:59 +0200 | [diff] [blame] | 2419 | .op_flags = OP_MODIFIES_SOMETHING, |
| 2420 | .op_name = "OP_LAYOUTGET", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2421 | .op_rsize_bop = nfsd4_layoutget_rsize, |
Christoph Hellwig | 9cf514c | 2014-05-05 13:11:59 +0200 | [diff] [blame] | 2422 | }, |
| 2423 | [OP_LAYOUTCOMMIT] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2424 | .op_func = nfsd4_layoutcommit, |
Christoph Hellwig | 9cf514c | 2014-05-05 13:11:59 +0200 | [diff] [blame] | 2425 | .op_flags = OP_MODIFIES_SOMETHING, |
| 2426 | .op_name = "OP_LAYOUTCOMMIT", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2427 | .op_rsize_bop = nfsd4_layoutcommit_rsize, |
Christoph Hellwig | 9cf514c | 2014-05-05 13:11:59 +0200 | [diff] [blame] | 2428 | }, |
| 2429 | [OP_LAYOUTRETURN] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2430 | .op_func = nfsd4_layoutreturn, |
Christoph Hellwig | 9cf514c | 2014-05-05 13:11:59 +0200 | [diff] [blame] | 2431 | .op_flags = OP_MODIFIES_SOMETHING, |
| 2432 | .op_name = "OP_LAYOUTRETURN", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2433 | .op_rsize_bop = nfsd4_layoutreturn_rsize, |
Christoph Hellwig | 9cf514c | 2014-05-05 13:11:59 +0200 | [diff] [blame] | 2434 | }, |
| 2435 | #endif /* CONFIG_NFSD_PNFS */ |
Anna Schumaker | 24bab49 | 2014-09-26 13:58:27 -0400 | [diff] [blame] | 2436 | |
| 2437 | /* NFSv4.2 operations */ |
Anna Schumaker | 95d871f | 2014-11-07 14:44:26 -0500 | [diff] [blame] | 2438 | [OP_ALLOCATE] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2439 | .op_func = nfsd4_allocate, |
Anna Schumaker | 95d871f | 2014-11-07 14:44:26 -0500 | [diff] [blame] | 2440 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
| 2441 | .op_name = "OP_ALLOCATE", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2442 | .op_rsize_bop = nfsd4_only_status_rsize, |
Anna Schumaker | 95d871f | 2014-11-07 14:44:26 -0500 | [diff] [blame] | 2443 | }, |
Anna Schumaker | b0cb908 | 2014-11-07 14:44:27 -0500 | [diff] [blame] | 2444 | [OP_DEALLOCATE] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2445 | .op_func = nfsd4_deallocate, |
Anna Schumaker | b0cb908 | 2014-11-07 14:44:27 -0500 | [diff] [blame] | 2446 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
| 2447 | .op_name = "OP_DEALLOCATE", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2448 | .op_rsize_bop = nfsd4_only_status_rsize, |
Anna Schumaker | b0cb908 | 2014-11-07 14:44:27 -0500 | [diff] [blame] | 2449 | }, |
Christoph Hellwig | ffa0160 | 2015-12-03 12:59:52 +0100 | [diff] [blame] | 2450 | [OP_CLONE] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2451 | .op_func = nfsd4_clone, |
Christoph Hellwig | ffa0160 | 2015-12-03 12:59:52 +0100 | [diff] [blame] | 2452 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
| 2453 | .op_name = "OP_CLONE", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2454 | .op_rsize_bop = nfsd4_only_status_rsize, |
Christoph Hellwig | ffa0160 | 2015-12-03 12:59:52 +0100 | [diff] [blame] | 2455 | }, |
Anna Schumaker | 29ae7f9 | 2016-09-07 15:57:30 -0400 | [diff] [blame] | 2456 | [OP_COPY] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2457 | .op_func = nfsd4_copy, |
Anna Schumaker | 29ae7f9 | 2016-09-07 15:57:30 -0400 | [diff] [blame] | 2458 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
| 2459 | .op_name = "OP_COPY", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2460 | .op_rsize_bop = nfsd4_copy_rsize, |
Anna Schumaker | 29ae7f9 | 2016-09-07 15:57:30 -0400 | [diff] [blame] | 2461 | }, |
Anna Schumaker | 24bab49 | 2014-09-26 13:58:27 -0400 | [diff] [blame] | 2462 | [OP_SEEK] = { |
Christoph Hellwig | eb69853 | 2017-05-08 20:58:35 +0200 | [diff] [blame] | 2463 | .op_func = nfsd4_seek, |
Anna Schumaker | 24bab49 | 2014-09-26 13:58:27 -0400 | [diff] [blame] | 2464 | .op_name = "OP_SEEK", |
Christoph Hellwig | 1c12263 | 2017-05-08 20:42:10 +0200 | [diff] [blame] | 2465 | .op_rsize_bop = nfsd4_seek_rsize, |
Anna Schumaker | 24bab49 | 2014-09-26 13:58:27 -0400 | [diff] [blame] | 2466 | }, |
J.Bruce Fields | b591480 | 2006-12-13 00:35:38 -0800 | [diff] [blame] | 2467 | }; |
| 2468 | |
Andrew Elble | ed94164 | 2016-06-15 12:52:09 -0400 | [diff] [blame] | 2469 | /** |
| 2470 | * nfsd4_spo_must_allow - Determine if the compound op contains an |
| 2471 | * operation that is allowed to be sent with machine credentials |
| 2472 | * |
| 2473 | * @rqstp: a pointer to the struct svc_rqst |
| 2474 | * |
| 2475 | * Checks to see if the compound contains a spo_must_allow op |
| 2476 | * and confirms that it was sent with the proper machine creds. |
| 2477 | */ |
| 2478 | |
| 2479 | bool nfsd4_spo_must_allow(struct svc_rqst *rqstp) |
| 2480 | { |
| 2481 | struct nfsd4_compoundres *resp = rqstp->rq_resp; |
| 2482 | struct nfsd4_compoundargs *argp = rqstp->rq_argp; |
| 2483 | struct nfsd4_op *this = &argp->ops[resp->opcnt - 1]; |
| 2484 | struct nfsd4_compound_state *cstate = &resp->cstate; |
| 2485 | struct nfs4_op_map *allow = &cstate->clp->cl_spo_must_allow; |
| 2486 | u32 opiter; |
| 2487 | |
| 2488 | if (!cstate->minorversion) |
| 2489 | return false; |
| 2490 | |
| 2491 | if (cstate->spo_must_allowed == true) |
| 2492 | return true; |
| 2493 | |
| 2494 | opiter = resp->opcnt; |
| 2495 | while (opiter < argp->opcnt) { |
| 2496 | this = &argp->ops[opiter++]; |
| 2497 | if (test_bit(this->opnum, allow->u.longs) && |
| 2498 | cstate->clp->cl_mach_cred && |
| 2499 | nfsd4_mach_creds_match(cstate->clp, rqstp)) { |
| 2500 | cstate->spo_must_allowed = true; |
| 2501 | return true; |
| 2502 | } |
| 2503 | } |
| 2504 | cstate->spo_must_allowed = false; |
| 2505 | return false; |
| 2506 | } |
| 2507 | |
J. Bruce Fields | 4f0cefb | 2014-03-11 15:39:13 -0400 | [diff] [blame] | 2508 | int nfsd4_max_reply(struct svc_rqst *rqstp, struct nfsd4_op *op) |
| 2509 | { |
Olga Kornievskaia | 05b7278 | 2017-03-23 14:36:20 -0400 | [diff] [blame] | 2510 | if (op->opnum == OP_ILLEGAL || op->status == nfserr_notsupp) |
J. Bruce Fields | 4f0cefb | 2014-03-11 15:39:13 -0400 | [diff] [blame] | 2511 | return op_encode_hdr_size * sizeof(__be32); |
Kinglong Mee | 2282cd2 | 2017-02-03 22:36:00 +0800 | [diff] [blame] | 2512 | |
| 2513 | BUG_ON(OPDESC(op)->op_rsize_bop == NULL); |
| 2514 | return OPDESC(op)->op_rsize_bop(rqstp, op); |
J. Bruce Fields | 4f0cefb | 2014-03-11 15:39:13 -0400 | [diff] [blame] | 2515 | } |
| 2516 | |
J. Bruce Fields | 07d1f80 | 2014-03-06 20:39:29 -0500 | [diff] [blame] | 2517 | void warn_on_nonidempotent_op(struct nfsd4_op *op) |
| 2518 | { |
| 2519 | if (OPDESC(op)->op_flags & OP_MODIFIES_SOMETHING) { |
| 2520 | pr_err("unable to encode reply to nonidempotent op %d (%s)\n", |
| 2521 | op->opnum, nfsd4_op_name(op->opnum)); |
| 2522 | WARN_ON_ONCE(1); |
| 2523 | } |
| 2524 | } |
| 2525 | |
Adrian Bunk | f1c7f79 | 2008-08-08 19:26:42 +0300 | [diff] [blame] | 2526 | static const char *nfsd4_op_name(unsigned opnum) |
Benny Halevy | b001a1b | 2008-07-02 11:15:03 +0300 | [diff] [blame] | 2527 | { |
| 2528 | if (opnum < ARRAY_SIZE(nfsd4_ops)) |
| 2529 | return nfsd4_ops[opnum].op_name; |
| 2530 | return "unknown_operation"; |
| 2531 | } |
| 2532 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2533 | #define nfsd4_voidres nfsd4_voidargs |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2534 | struct nfsd4_voidargs { int dummy; }; |
| 2535 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2536 | static struct svc_procedure nfsd_procedures4[2] = { |
Yu Zhiguo | 0a93a47 | 2009-05-19 14:09:54 +0800 | [diff] [blame] | 2537 | [NFSPROC4_NULL] = { |
Christoph Hellwig | f7235b6 | 2017-05-08 17:59:13 +0200 | [diff] [blame] | 2538 | .pc_func = nfsd4_proc_null, |
Christoph Hellwig | 63f8de3 | 2017-05-08 19:42:02 +0200 | [diff] [blame] | 2539 | .pc_encode = nfs4svc_encode_voidres, |
Yu Zhiguo | 0a93a47 | 2009-05-19 14:09:54 +0800 | [diff] [blame] | 2540 | .pc_argsize = sizeof(struct nfsd4_voidargs), |
| 2541 | .pc_ressize = sizeof(struct nfsd4_voidres), |
| 2542 | .pc_cachetype = RC_NOCACHE, |
| 2543 | .pc_xdrressize = 1, |
| 2544 | }, |
| 2545 | [NFSPROC4_COMPOUND] = { |
Christoph Hellwig | f7235b6 | 2017-05-08 17:59:13 +0200 | [diff] [blame] | 2546 | .pc_func = nfsd4_proc_compound, |
Christoph Hellwig | 026fec7 | 2017-05-08 19:01:48 +0200 | [diff] [blame] | 2547 | .pc_decode = nfs4svc_decode_compoundargs, |
Christoph Hellwig | 63f8de3 | 2017-05-08 19:42:02 +0200 | [diff] [blame] | 2548 | .pc_encode = nfs4svc_encode_compoundres, |
Yu Zhiguo | 0a93a47 | 2009-05-19 14:09:54 +0800 | [diff] [blame] | 2549 | .pc_argsize = sizeof(struct nfsd4_compoundargs), |
| 2550 | .pc_ressize = sizeof(struct nfsd4_compoundres), |
J. Bruce Fields | 3e98abf | 2011-07-16 17:15:10 -0400 | [diff] [blame] | 2551 | .pc_release = nfsd4_release_compoundargs, |
Yu Zhiguo | 0a93a47 | 2009-05-19 14:09:54 +0800 | [diff] [blame] | 2552 | .pc_cachetype = RC_NOCACHE, |
| 2553 | .pc_xdrressize = NFSD_BUFSIZE/4, |
| 2554 | }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2555 | }; |
| 2556 | |
Christoph Hellwig | 7fd38af | 2017-05-08 23:40:27 +0200 | [diff] [blame^] | 2557 | static unsigned int nfsd_count3[ARRAY_SIZE(nfsd_procedures4)]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2558 | struct svc_version nfsd_version4 = { |
Jeff Layton | 5283b03 | 2017-02-24 13:25:24 -0500 | [diff] [blame] | 2559 | .vs_vers = 4, |
| 2560 | .vs_nproc = 2, |
| 2561 | .vs_proc = nfsd_procedures4, |
Christoph Hellwig | 7fd38af | 2017-05-08 23:40:27 +0200 | [diff] [blame^] | 2562 | .vs_count = nfsd_count3, |
Jeff Layton | 5283b03 | 2017-02-24 13:25:24 -0500 | [diff] [blame] | 2563 | .vs_dispatch = nfsd_dispatch, |
| 2564 | .vs_xdrsize = NFS4_SVC_XDRSIZE, |
| 2565 | .vs_rpcb_optnl = true, |
| 2566 | .vs_need_cong_ctrl = true, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2567 | }; |
| 2568 | |
| 2569 | /* |
| 2570 | * Local variables: |
| 2571 | * c-basic-offset: 8 |
| 2572 | * End: |
| 2573 | */ |