Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * fs/cifs/cifssmb.c |
| 3 | * |
Steve French | f19159d | 2010-04-21 04:12:10 +0000 | [diff] [blame] | 4 | * Copyright (C) International Business Machines Corp., 2002,2010 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5 | * Author(s): Steve French (sfrench@us.ibm.com) |
| 6 | * |
| 7 | * Contains the routines for constructing the SMB PDUs themselves |
| 8 | * |
| 9 | * This library is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU Lesser General Public License as published |
| 11 | * by the Free Software Foundation; either version 2.1 of the License, or |
| 12 | * (at your option) any later version. |
| 13 | * |
| 14 | * This library is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See |
| 17 | * the GNU Lesser General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU Lesser General Public License |
| 20 | * along with this library; if not, write to the Free Software |
| 21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 22 | */ |
| 23 | |
| 24 | /* SMB/CIFS PDU handling routines here - except for leftovers in connect.c */ |
| 25 | /* These are mostly routines that operate on a pathname, or on a tree id */ |
| 26 | /* (mounted volume), but there are eight handle based routines which must be */ |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 27 | /* treated slightly differently for reconnection purposes since we never */ |
| 28 | /* want to reuse a stale file handle and only the caller knows the file info */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 29 | |
| 30 | #include <linux/fs.h> |
| 31 | #include <linux/kernel.h> |
| 32 | #include <linux/vfs.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 33 | #include <linux/slab.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 34 | #include <linux/posix_acl_xattr.h> |
| 35 | #include <asm/uaccess.h> |
| 36 | #include "cifspdu.h" |
| 37 | #include "cifsglob.h" |
Shirish Pargaonkar | d0d66c4 | 2007-10-03 18:22:19 +0000 | [diff] [blame] | 38 | #include "cifsacl.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 39 | #include "cifsproto.h" |
| 40 | #include "cifs_unicode.h" |
| 41 | #include "cifs_debug.h" |
| 42 | |
| 43 | #ifdef CONFIG_CIFS_POSIX |
| 44 | static struct { |
| 45 | int index; |
| 46 | char *name; |
| 47 | } protocols[] = { |
Steve French | 3979877 | 2006-05-31 22:40:51 +0000 | [diff] [blame] | 48 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
| 49 | {LANMAN_PROT, "\2LM1.2X002"}, |
Steve French | 9ac00b7 | 2006-09-30 04:13:17 +0000 | [diff] [blame] | 50 | {LANMAN2_PROT, "\2LANMAN2.1"}, |
Steve French | 3979877 | 2006-05-31 22:40:51 +0000 | [diff] [blame] | 51 | #endif /* weak password hashing for legacy clients */ |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 52 | {CIFS_PROT, "\2NT LM 0.12"}, |
Steve French | 3979877 | 2006-05-31 22:40:51 +0000 | [diff] [blame] | 53 | {POSIX_PROT, "\2POSIX 2"}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 54 | {BAD_PROT, "\2"} |
| 55 | }; |
| 56 | #else |
| 57 | static struct { |
| 58 | int index; |
| 59 | char *name; |
| 60 | } protocols[] = { |
Steve French | 3979877 | 2006-05-31 22:40:51 +0000 | [diff] [blame] | 61 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
| 62 | {LANMAN_PROT, "\2LM1.2X002"}, |
Steve French | 18f75ca | 2006-10-01 03:13:01 +0000 | [diff] [blame] | 63 | {LANMAN2_PROT, "\2LANMAN2.1"}, |
Steve French | 3979877 | 2006-05-31 22:40:51 +0000 | [diff] [blame] | 64 | #endif /* weak password hashing for legacy clients */ |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 65 | {CIFS_PROT, "\2NT LM 0.12"}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 66 | {BAD_PROT, "\2"} |
| 67 | }; |
| 68 | #endif |
| 69 | |
Steve French | 3979877 | 2006-05-31 22:40:51 +0000 | [diff] [blame] | 70 | /* define the number of elements in the cifs dialect array */ |
| 71 | #ifdef CONFIG_CIFS_POSIX |
| 72 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
Steve French | 9ac00b7 | 2006-09-30 04:13:17 +0000 | [diff] [blame] | 73 | #define CIFS_NUM_PROT 4 |
Steve French | 3979877 | 2006-05-31 22:40:51 +0000 | [diff] [blame] | 74 | #else |
| 75 | #define CIFS_NUM_PROT 2 |
| 76 | #endif /* CIFS_WEAK_PW_HASH */ |
| 77 | #else /* not posix */ |
| 78 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
Steve French | 9ac00b7 | 2006-09-30 04:13:17 +0000 | [diff] [blame] | 79 | #define CIFS_NUM_PROT 3 |
Steve French | 3979877 | 2006-05-31 22:40:51 +0000 | [diff] [blame] | 80 | #else |
| 81 | #define CIFS_NUM_PROT 1 |
| 82 | #endif /* CONFIG_CIFS_WEAK_PW_HASH */ |
| 83 | #endif /* CIFS_POSIX */ |
| 84 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 85 | /* Mark as invalid, all open files on tree connections since they |
| 86 | were closed when session to server was lost */ |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 87 | static void mark_open_files_invalid(struct cifsTconInfo *pTcon) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 88 | { |
| 89 | struct cifsFileInfo *open_file = NULL; |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 90 | struct list_head *tmp; |
| 91 | struct list_head *tmp1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 92 | |
| 93 | /* list all files open on tree connection and mark them invalid */ |
Jeff Layton | 4477288 | 2010-10-15 15:34:03 -0400 | [diff] [blame] | 94 | spin_lock(&cifs_file_list_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 95 | list_for_each_safe(tmp, tmp1, &pTcon->openFileList) { |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 96 | open_file = list_entry(tmp, struct cifsFileInfo, tlist); |
Steve French | ad8b15f | 2008-08-08 21:10:16 +0000 | [diff] [blame] | 97 | open_file->invalidHandle = true; |
Jeff Layton | 3bc303c | 2009-09-21 06:47:50 -0400 | [diff] [blame] | 98 | open_file->oplock_break_cancelled = true; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 99 | } |
Jeff Layton | 4477288 | 2010-10-15 15:34:03 -0400 | [diff] [blame] | 100 | spin_unlock(&cifs_file_list_lock); |
Steve French | 09d1db5 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 101 | /* BB Add call to invalidate_inodes(sb) for all superblocks mounted |
| 102 | to this tcon */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 103 | } |
| 104 | |
Jeff Layton | 9162ab2 | 2009-09-03 12:07:17 -0400 | [diff] [blame] | 105 | /* reconnect the socket, tcon, and smb session if needed */ |
| 106 | static int |
| 107 | cifs_reconnect_tcon(struct cifsTconInfo *tcon, int smb_command) |
| 108 | { |
| 109 | int rc = 0; |
| 110 | struct cifsSesInfo *ses; |
| 111 | struct TCP_Server_Info *server; |
| 112 | struct nls_table *nls_codepage; |
| 113 | |
| 114 | /* |
| 115 | * SMBs NegProt, SessSetup, uLogoff do not have tcon yet so check for |
| 116 | * tcp and smb session status done differently for those three - in the |
| 117 | * calling routine |
| 118 | */ |
| 119 | if (!tcon) |
| 120 | return 0; |
| 121 | |
| 122 | ses = tcon->ses; |
| 123 | server = ses->server; |
| 124 | |
| 125 | /* |
| 126 | * only tree disconnect, open, and write, (and ulogoff which does not |
| 127 | * have tcon) are allowed as we start force umount |
| 128 | */ |
| 129 | if (tcon->tidStatus == CifsExiting) { |
| 130 | if (smb_command != SMB_COM_WRITE_ANDX && |
| 131 | smb_command != SMB_COM_OPEN_ANDX && |
| 132 | smb_command != SMB_COM_TREE_DISCONNECT) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 133 | cFYI(1, "can not send cmd %d while umounting", |
| 134 | smb_command); |
Jeff Layton | 9162ab2 | 2009-09-03 12:07:17 -0400 | [diff] [blame] | 135 | return -ENODEV; |
| 136 | } |
| 137 | } |
| 138 | |
| 139 | if (ses->status == CifsExiting) |
| 140 | return -EIO; |
| 141 | |
| 142 | /* |
| 143 | * Give demultiplex thread up to 10 seconds to reconnect, should be |
| 144 | * greater than cifs socket timeout which is 7 seconds |
| 145 | */ |
| 146 | while (server->tcpStatus == CifsNeedReconnect) { |
| 147 | wait_event_interruptible_timeout(server->response_q, |
| 148 | (server->tcpStatus == CifsGood), 10 * HZ); |
| 149 | |
| 150 | /* is TCP session is reestablished now ?*/ |
| 151 | if (server->tcpStatus != CifsNeedReconnect) |
| 152 | break; |
| 153 | |
| 154 | /* |
| 155 | * on "soft" mounts we wait once. Hard mounts keep |
| 156 | * retrying until process is killed or server comes |
| 157 | * back on-line |
| 158 | */ |
| 159 | if (!tcon->retry || ses->status == CifsExiting) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 160 | cFYI(1, "gave up waiting on reconnect in smb_init"); |
Jeff Layton | 9162ab2 | 2009-09-03 12:07:17 -0400 | [diff] [blame] | 161 | return -EHOSTDOWN; |
| 162 | } |
| 163 | } |
| 164 | |
| 165 | if (!ses->need_reconnect && !tcon->need_reconnect) |
| 166 | return 0; |
| 167 | |
| 168 | nls_codepage = load_nls_default(); |
| 169 | |
| 170 | /* |
| 171 | * need to prevent multiple threads trying to simultaneously |
| 172 | * reconnect the same SMB session |
| 173 | */ |
Steve French | d7b619c | 2010-02-25 05:36:46 +0000 | [diff] [blame] | 174 | mutex_lock(&ses->session_mutex); |
Jeff Layton | 198b568 | 2010-04-24 07:57:48 -0400 | [diff] [blame] | 175 | rc = cifs_negotiate_protocol(0, ses); |
| 176 | if (rc == 0 && ses->need_reconnect) |
Jeff Layton | 9162ab2 | 2009-09-03 12:07:17 -0400 | [diff] [blame] | 177 | rc = cifs_setup_session(0, ses, nls_codepage); |
| 178 | |
| 179 | /* do we need to reconnect tcon? */ |
| 180 | if (rc || !tcon->need_reconnect) { |
Steve French | d7b619c | 2010-02-25 05:36:46 +0000 | [diff] [blame] | 181 | mutex_unlock(&ses->session_mutex); |
Jeff Layton | 9162ab2 | 2009-09-03 12:07:17 -0400 | [diff] [blame] | 182 | goto out; |
| 183 | } |
| 184 | |
| 185 | mark_open_files_invalid(tcon); |
| 186 | rc = CIFSTCon(0, ses, tcon->treeName, tcon, nls_codepage); |
Steve French | d7b619c | 2010-02-25 05:36:46 +0000 | [diff] [blame] | 187 | mutex_unlock(&ses->session_mutex); |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 188 | cFYI(1, "reconnect tcon rc = %d", rc); |
Jeff Layton | 9162ab2 | 2009-09-03 12:07:17 -0400 | [diff] [blame] | 189 | |
| 190 | if (rc) |
| 191 | goto out; |
| 192 | |
| 193 | /* |
| 194 | * FIXME: check if wsize needs updated due to negotiated smb buffer |
| 195 | * size shrinking |
| 196 | */ |
| 197 | atomic_inc(&tconInfoReconnectCount); |
| 198 | |
| 199 | /* tell server Unix caps we support */ |
| 200 | if (ses->capabilities & CAP_UNIX) |
| 201 | reset_cifs_unix_caps(0, tcon, NULL, NULL); |
| 202 | |
| 203 | /* |
| 204 | * Removed call to reopen open files here. It is safer (and faster) to |
| 205 | * reopen files one at a time as needed in read and write. |
| 206 | * |
| 207 | * FIXME: what about file locks? don't we need to reclaim them ASAP? |
| 208 | */ |
| 209 | |
| 210 | out: |
| 211 | /* |
| 212 | * Check if handle based operation so we know whether we can continue |
| 213 | * or not without returning to caller to reset file handle |
| 214 | */ |
| 215 | switch (smb_command) { |
| 216 | case SMB_COM_READ_ANDX: |
| 217 | case SMB_COM_WRITE_ANDX: |
| 218 | case SMB_COM_CLOSE: |
| 219 | case SMB_COM_FIND_CLOSE2: |
| 220 | case SMB_COM_LOCKING_ANDX: |
| 221 | rc = -EAGAIN; |
| 222 | } |
| 223 | |
| 224 | unload_nls(nls_codepage); |
| 225 | return rc; |
| 226 | } |
| 227 | |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 228 | /* Allocate and return pointer to an SMB request buffer, and set basic |
| 229 | SMB information in the SMB header. If the return code is zero, this |
| 230 | function must have filled in request_buf pointer */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 231 | static int |
| 232 | small_smb_init(int smb_command, int wct, struct cifsTconInfo *tcon, |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 233 | void **request_buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 234 | { |
Jeff Layton | f569599 | 2010-09-29 15:27:08 -0400 | [diff] [blame] | 235 | int rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 236 | |
Jeff Layton | 9162ab2 | 2009-09-03 12:07:17 -0400 | [diff] [blame] | 237 | rc = cifs_reconnect_tcon(tcon, smb_command); |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 238 | if (rc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 239 | return rc; |
| 240 | |
| 241 | *request_buf = cifs_small_buf_get(); |
| 242 | if (*request_buf == NULL) { |
| 243 | /* BB should we add a retry in here if not a writepage? */ |
| 244 | return -ENOMEM; |
| 245 | } |
| 246 | |
Steve French | 63135e0 | 2007-07-17 17:34:02 +0000 | [diff] [blame] | 247 | header_assemble((struct smb_hdr *) *request_buf, smb_command, |
Steve French | c18c842 | 2007-07-18 23:21:09 +0000 | [diff] [blame] | 248 | tcon, wct); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 249 | |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 250 | if (tcon != NULL) |
| 251 | cifs_stats_inc(&tcon->num_smbs_sent); |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 252 | |
Jeff Layton | f569599 | 2010-09-29 15:27:08 -0400 | [diff] [blame] | 253 | return 0; |
Steve French | 5815449d | 2006-02-14 01:36:20 +0000 | [diff] [blame] | 254 | } |
| 255 | |
Steve French | 12b3b8f | 2006-02-09 21:12:47 +0000 | [diff] [blame] | 256 | int |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 257 | small_smb_init_no_tc(const int smb_command, const int wct, |
Steve French | 5815449d | 2006-02-14 01:36:20 +0000 | [diff] [blame] | 258 | struct cifsSesInfo *ses, void **request_buf) |
Steve French | 12b3b8f | 2006-02-09 21:12:47 +0000 | [diff] [blame] | 259 | { |
| 260 | int rc; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 261 | struct smb_hdr *buffer; |
Steve French | 12b3b8f | 2006-02-09 21:12:47 +0000 | [diff] [blame] | 262 | |
Steve French | 5815449d | 2006-02-14 01:36:20 +0000 | [diff] [blame] | 263 | rc = small_smb_init(smb_command, wct, NULL, request_buf); |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 264 | if (rc) |
Steve French | 12b3b8f | 2006-02-09 21:12:47 +0000 | [diff] [blame] | 265 | return rc; |
| 266 | |
Steve French | 04fdabe | 2006-02-10 05:52:50 +0000 | [diff] [blame] | 267 | buffer = (struct smb_hdr *)*request_buf; |
Steve French | 12b3b8f | 2006-02-09 21:12:47 +0000 | [diff] [blame] | 268 | buffer->Mid = GetNextMid(ses->server); |
| 269 | if (ses->capabilities & CAP_UNICODE) |
| 270 | buffer->Flags2 |= SMBFLG2_UNICODE; |
Steve French | 04fdabe | 2006-02-10 05:52:50 +0000 | [diff] [blame] | 271 | if (ses->capabilities & CAP_STATUS32) |
Steve French | 12b3b8f | 2006-02-09 21:12:47 +0000 | [diff] [blame] | 272 | buffer->Flags2 |= SMBFLG2_ERR_STATUS; |
| 273 | |
| 274 | /* uid, tid can stay at zero as set in header assemble */ |
| 275 | |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 276 | /* BB add support for turning on the signing when |
Steve French | 12b3b8f | 2006-02-09 21:12:47 +0000 | [diff] [blame] | 277 | this function is used after 1st of session setup requests */ |
| 278 | |
| 279 | return rc; |
| 280 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 281 | |
| 282 | /* If the return code is zero, this function must fill in request_buf pointer */ |
| 283 | static int |
Jeff Layton | f569599 | 2010-09-29 15:27:08 -0400 | [diff] [blame] | 284 | __smb_init(int smb_command, int wct, struct cifsTconInfo *tcon, |
| 285 | void **request_buf, void **response_buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 286 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 287 | *request_buf = cifs_buf_get(); |
| 288 | if (*request_buf == NULL) { |
| 289 | /* BB should we add a retry in here if not a writepage? */ |
| 290 | return -ENOMEM; |
| 291 | } |
| 292 | /* Although the original thought was we needed the response buf for */ |
| 293 | /* potential retries of smb operations it turns out we can determine */ |
| 294 | /* from the mid flags when the request buffer can be resent without */ |
| 295 | /* having to use a second distinct buffer for the response */ |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 296 | if (response_buf) |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 297 | *response_buf = *request_buf; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 298 | |
| 299 | header_assemble((struct smb_hdr *) *request_buf, smb_command, tcon, |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 300 | wct); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 301 | |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 302 | if (tcon != NULL) |
| 303 | cifs_stats_inc(&tcon->num_smbs_sent); |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 304 | |
Jeff Layton | f569599 | 2010-09-29 15:27:08 -0400 | [diff] [blame] | 305 | return 0; |
| 306 | } |
| 307 | |
| 308 | /* If the return code is zero, this function must fill in request_buf pointer */ |
| 309 | static int |
| 310 | smb_init(int smb_command, int wct, struct cifsTconInfo *tcon, |
| 311 | void **request_buf, void **response_buf) |
| 312 | { |
| 313 | int rc; |
| 314 | |
| 315 | rc = cifs_reconnect_tcon(tcon, smb_command); |
| 316 | if (rc) |
| 317 | return rc; |
| 318 | |
| 319 | return __smb_init(smb_command, wct, tcon, request_buf, response_buf); |
| 320 | } |
| 321 | |
| 322 | static int |
| 323 | smb_init_no_reconnect(int smb_command, int wct, struct cifsTconInfo *tcon, |
| 324 | void **request_buf, void **response_buf) |
| 325 | { |
| 326 | if (tcon->ses->need_reconnect || tcon->need_reconnect) |
| 327 | return -EHOSTDOWN; |
| 328 | |
| 329 | return __smb_init(smb_command, wct, tcon, request_buf, response_buf); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 330 | } |
| 331 | |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 332 | static int validate_t2(struct smb_t2_rsp *pSMB) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 333 | { |
| 334 | int rc = -EINVAL; |
| 335 | int total_size; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 336 | char *pBCC; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 337 | |
| 338 | /* check for plausible wct, bcc and t2 data and parm sizes */ |
| 339 | /* check for parm and data offset going beyond end of smb */ |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 340 | if (pSMB->hdr.WordCount >= 10) { |
| 341 | if ((le16_to_cpu(pSMB->t2_rsp.ParameterOffset) <= 1024) && |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 342 | (le16_to_cpu(pSMB->t2_rsp.DataOffset) <= 1024)) { |
| 343 | /* check that bcc is at least as big as parms + data */ |
| 344 | /* check that bcc is less than negotiated smb buffer */ |
| 345 | total_size = le16_to_cpu(pSMB->t2_rsp.ParameterCount); |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 346 | if (total_size < 512) { |
Steve French | c18c842 | 2007-07-18 23:21:09 +0000 | [diff] [blame] | 347 | total_size += |
Steve French | 63135e0 | 2007-07-17 17:34:02 +0000 | [diff] [blame] | 348 | le16_to_cpu(pSMB->t2_rsp.DataCount); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 349 | /* BCC le converted in SendReceive */ |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 350 | pBCC = (pSMB->hdr.WordCount * 2) + |
Steve French | 09d1db5 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 351 | sizeof(struct smb_hdr) + |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 352 | (char *)pSMB; |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 353 | if ((total_size <= (*(u16 *)pBCC)) && |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 354 | (total_size < |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 355 | CIFSMaxBufSize+MAX_CIFS_HDR_SIZE)) { |
| 356 | return 0; |
| 357 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 358 | } |
| 359 | } |
| 360 | } |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 361 | cifs_dump_mem("Invalid transact2 SMB: ", (char *)pSMB, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 362 | sizeof(struct smb_t2_rsp) + 16); |
| 363 | return rc; |
| 364 | } |
| 365 | int |
| 366 | CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) |
| 367 | { |
| 368 | NEGOTIATE_REQ *pSMB; |
| 369 | NEGOTIATE_RSP *pSMBr; |
| 370 | int rc = 0; |
| 371 | int bytes_returned; |
Steve French | 3979877 | 2006-05-31 22:40:51 +0000 | [diff] [blame] | 372 | int i; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 373 | struct TCP_Server_Info *server; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 374 | u16 count; |
Steve French | 750d115 | 2006-06-27 06:28:30 +0000 | [diff] [blame] | 375 | unsigned int secFlags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 376 | |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 377 | if (ses->server) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 378 | server = ses->server; |
| 379 | else { |
| 380 | rc = -EIO; |
| 381 | return rc; |
| 382 | } |
| 383 | rc = smb_init(SMB_COM_NEGOTIATE, 0, NULL /* no tcon yet */ , |
| 384 | (void **) &pSMB, (void **) &pSMBr); |
| 385 | if (rc) |
| 386 | return rc; |
Steve French | 750d115 | 2006-06-27 06:28:30 +0000 | [diff] [blame] | 387 | |
| 388 | /* if any of auth flags (ie not sign or seal) are overriden use them */ |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 389 | if (ses->overrideSecFlg & (~(CIFSSEC_MUST_SIGN | CIFSSEC_MUST_SEAL))) |
Steve French | 762e5ab | 2007-06-28 18:41:42 +0000 | [diff] [blame] | 390 | secFlags = ses->overrideSecFlg; /* BB FIXME fix sign flags? */ |
Steve French | 750d115 | 2006-06-27 06:28:30 +0000 | [diff] [blame] | 391 | else /* if override flags set only sign/seal OR them with global auth */ |
Jeff Layton | 04912d6 | 2010-04-24 07:57:45 -0400 | [diff] [blame] | 392 | secFlags = global_secflags | ses->overrideSecFlg; |
Steve French | 750d115 | 2006-06-27 06:28:30 +0000 | [diff] [blame] | 393 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 394 | cFYI(1, "secFlags 0x%x", secFlags); |
Steve French | f40c562 | 2006-06-28 00:13:38 +0000 | [diff] [blame] | 395 | |
Steve French | 1982c34 | 2005-08-17 12:38:22 -0700 | [diff] [blame] | 396 | pSMB->hdr.Mid = GetNextMid(server); |
Yehuda Sadeh Weinraub | 100c1dd | 2007-06-05 21:31:16 +0000 | [diff] [blame] | 397 | pSMB->hdr.Flags2 |= (SMBFLG2_UNICODE | SMBFLG2_ERR_STATUS); |
Steve French | a013689 | 2007-10-04 20:05:09 +0000 | [diff] [blame] | 398 | |
Yehuda Sadeh Weinraub | 100c1dd | 2007-06-05 21:31:16 +0000 | [diff] [blame] | 399 | if ((secFlags & CIFSSEC_MUST_KRB5) == CIFSSEC_MUST_KRB5) |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 400 | pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC; |
Steve French | a013689 | 2007-10-04 20:05:09 +0000 | [diff] [blame] | 401 | else if ((secFlags & CIFSSEC_AUTH_MASK) == CIFSSEC_MAY_KRB5) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 402 | cFYI(1, "Kerberos only mechanism, enable extended security"); |
Steve French | a013689 | 2007-10-04 20:05:09 +0000 | [diff] [blame] | 403 | pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC; |
| 404 | } |
Steve French | ac68392 | 2009-05-06 04:16:04 +0000 | [diff] [blame] | 405 | #ifdef CONFIG_CIFS_EXPERIMENTAL |
| 406 | else if ((secFlags & CIFSSEC_MUST_NTLMSSP) == CIFSSEC_MUST_NTLMSSP) |
| 407 | pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC; |
| 408 | else if ((secFlags & CIFSSEC_AUTH_MASK) == CIFSSEC_MAY_NTLMSSP) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 409 | cFYI(1, "NTLMSSP only mechanism, enable extended security"); |
Steve French | ac68392 | 2009-05-06 04:16:04 +0000 | [diff] [blame] | 410 | pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC; |
| 411 | } |
| 412 | #endif |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 413 | |
Steve French | 3979877 | 2006-05-31 22:40:51 +0000 | [diff] [blame] | 414 | count = 0; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 415 | for (i = 0; i < CIFS_NUM_PROT; i++) { |
Steve French | 3979877 | 2006-05-31 22:40:51 +0000 | [diff] [blame] | 416 | strncpy(pSMB->DialectsArray+count, protocols[i].name, 16); |
| 417 | count += strlen(protocols[i].name) + 1; |
| 418 | /* null at end of source and target buffers anyway */ |
| 419 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 420 | pSMB->hdr.smb_buf_length += count; |
| 421 | pSMB->ByteCount = cpu_to_le16(count); |
| 422 | |
| 423 | rc = SendReceive(xid, ses, (struct smb_hdr *) pSMB, |
| 424 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 425 | if (rc != 0) |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 426 | goto neg_err_exit; |
| 427 | |
Jeff Layton | 9bf67e5 | 2010-04-24 07:57:46 -0400 | [diff] [blame] | 428 | server->dialect = le16_to_cpu(pSMBr->DialectIndex); |
| 429 | cFYI(1, "Dialect: %d", server->dialect); |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 430 | /* Check wct = 1 error case */ |
Jeff Layton | 9bf67e5 | 2010-04-24 07:57:46 -0400 | [diff] [blame] | 431 | if ((pSMBr->hdr.WordCount < 13) || (server->dialect == BAD_PROT)) { |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 432 | /* core returns wct = 1, but we do not ask for core - otherwise |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 433 | small wct just comes when dialect index is -1 indicating we |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 434 | could not negotiate a common dialect */ |
| 435 | rc = -EOPNOTSUPP; |
| 436 | goto neg_err_exit; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 437 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 438 | } else if ((pSMBr->hdr.WordCount == 13) |
Jeff Layton | 9bf67e5 | 2010-04-24 07:57:46 -0400 | [diff] [blame] | 439 | && ((server->dialect == LANMAN_PROT) |
| 440 | || (server->dialect == LANMAN2_PROT))) { |
Steve French | b815f1e5 | 2006-10-02 05:53:29 +0000 | [diff] [blame] | 441 | __s16 tmp; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 442 | struct lanman_neg_rsp *rsp = (struct lanman_neg_rsp *)pSMBr; |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 443 | |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 444 | if ((secFlags & CIFSSEC_MAY_LANMAN) || |
Steve French | 750d115 | 2006-06-27 06:28:30 +0000 | [diff] [blame] | 445 | (secFlags & CIFSSEC_MAY_PLNTXT)) |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 446 | server->secType = LANMAN; |
| 447 | else { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 448 | cERROR(1, "mount failed weak security disabled" |
| 449 | " in /proc/fs/cifs/SecurityFlags"); |
Steve French | 3979877 | 2006-05-31 22:40:51 +0000 | [diff] [blame] | 450 | rc = -EOPNOTSUPP; |
| 451 | goto neg_err_exit; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 452 | } |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 453 | server->secMode = (__u8)le16_to_cpu(rsp->SecurityMode); |
| 454 | server->maxReq = le16_to_cpu(rsp->MaxMpxCount); |
| 455 | server->maxBuf = min((__u32)le16_to_cpu(rsp->MaxBufSize), |
Steve French | 3979877 | 2006-05-31 22:40:51 +0000 | [diff] [blame] | 456 | (__u32)CIFSMaxBufSize + MAX_CIFS_HDR_SIZE); |
Steve French | eca6acf | 2009-02-20 05:43:09 +0000 | [diff] [blame] | 457 | server->max_vcs = le16_to_cpu(rsp->MaxNumberVcs); |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 458 | GETU32(server->sessid) = le32_to_cpu(rsp->SessionKey); |
| 459 | /* even though we do not use raw we might as well set this |
| 460 | accurately, in case we ever find a need for it */ |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 461 | if ((le16_to_cpu(rsp->RawMode) & RAW_ENABLE) == RAW_ENABLE) { |
Steve French | eca6acf | 2009-02-20 05:43:09 +0000 | [diff] [blame] | 462 | server->max_rw = 0xFF00; |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 463 | server->capabilities = CAP_MPX_MODE | CAP_RAW_MODE; |
| 464 | } else { |
Steve French | eca6acf | 2009-02-20 05:43:09 +0000 | [diff] [blame] | 465 | server->max_rw = 0;/* do not need to use raw anyway */ |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 466 | server->capabilities = CAP_MPX_MODE; |
| 467 | } |
Steve French | b815f1e5 | 2006-10-02 05:53:29 +0000 | [diff] [blame] | 468 | tmp = (__s16)le16_to_cpu(rsp->ServerTimeZone); |
Steve French | 1a70d65 | 2006-10-02 05:59:18 +0000 | [diff] [blame] | 469 | if (tmp == -1) { |
Steve French | 25ee4a9 | 2006-09-30 00:54:23 +0000 | [diff] [blame] | 470 | /* OS/2 often does not set timezone therefore |
| 471 | * we must use server time to calc time zone. |
Steve French | b815f1e5 | 2006-10-02 05:53:29 +0000 | [diff] [blame] | 472 | * Could deviate slightly from the right zone. |
| 473 | * Smallest defined timezone difference is 15 minutes |
| 474 | * (i.e. Nepal). Rounding up/down is done to match |
| 475 | * this requirement. |
Steve French | 25ee4a9 | 2006-09-30 00:54:23 +0000 | [diff] [blame] | 476 | */ |
Steve French | b815f1e5 | 2006-10-02 05:53:29 +0000 | [diff] [blame] | 477 | int val, seconds, remain, result; |
Steve French | 25ee4a9 | 2006-09-30 00:54:23 +0000 | [diff] [blame] | 478 | struct timespec ts, utc; |
| 479 | utc = CURRENT_TIME; |
Jeff Layton | c4a2c08 | 2009-05-27 09:37:33 -0400 | [diff] [blame] | 480 | ts = cnvrtDosUnixTm(rsp->SrvTime.Date, |
| 481 | rsp->SrvTime.Time, 0); |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 482 | cFYI(1, "SrvTime %d sec since 1970 (utc: %d) diff: %d", |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 483 | (int)ts.tv_sec, (int)utc.tv_sec, |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 484 | (int)(utc.tv_sec - ts.tv_sec)); |
Steve French | b815f1e5 | 2006-10-02 05:53:29 +0000 | [diff] [blame] | 485 | val = (int)(utc.tv_sec - ts.tv_sec); |
Andre Haupt | 8594c15 | 2007-08-30 20:18:41 +0000 | [diff] [blame] | 486 | seconds = abs(val); |
Steve French | 947a506 | 2006-10-02 05:55:25 +0000 | [diff] [blame] | 487 | result = (seconds / MIN_TZ_ADJ) * MIN_TZ_ADJ; |
Steve French | b815f1e5 | 2006-10-02 05:53:29 +0000 | [diff] [blame] | 488 | remain = seconds % MIN_TZ_ADJ; |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 489 | if (remain >= (MIN_TZ_ADJ / 2)) |
Steve French | b815f1e5 | 2006-10-02 05:53:29 +0000 | [diff] [blame] | 490 | result += MIN_TZ_ADJ; |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 491 | if (val < 0) |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 492 | result = -result; |
Steve French | b815f1e5 | 2006-10-02 05:53:29 +0000 | [diff] [blame] | 493 | server->timeAdj = result; |
Steve French | 25ee4a9 | 2006-09-30 00:54:23 +0000 | [diff] [blame] | 494 | } else { |
Steve French | b815f1e5 | 2006-10-02 05:53:29 +0000 | [diff] [blame] | 495 | server->timeAdj = (int)tmp; |
| 496 | server->timeAdj *= 60; /* also in seconds */ |
Steve French | 25ee4a9 | 2006-09-30 00:54:23 +0000 | [diff] [blame] | 497 | } |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 498 | cFYI(1, "server->timeAdj: %d seconds", server->timeAdj); |
Steve French | 25ee4a9 | 2006-09-30 00:54:23 +0000 | [diff] [blame] | 499 | |
Steve French | 3979877 | 2006-05-31 22:40:51 +0000 | [diff] [blame] | 500 | |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 501 | /* BB get server time for time conversions and add |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 502 | code to use it and timezone since this is not UTC */ |
Steve French | 3979877 | 2006-05-31 22:40:51 +0000 | [diff] [blame] | 503 | |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 504 | if (rsp->EncryptionKeyLength == |
Steve French | 25ee4a9 | 2006-09-30 00:54:23 +0000 | [diff] [blame] | 505 | cpu_to_le16(CIFS_CRYPTO_KEY_SIZE)) { |
Shirish Pargaonkar | d3ba50b | 2010-10-27 15:20:36 -0500 | [diff] [blame] | 506 | memcpy(ses->server->cryptkey, rsp->EncryptionKey, |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 507 | CIFS_CRYPTO_KEY_SIZE); |
| 508 | } else if (server->secMode & SECMODE_PW_ENCRYPT) { |
| 509 | rc = -EIO; /* need cryptkey unless plain text */ |
| 510 | goto neg_err_exit; |
| 511 | } |
Steve French | 3979877 | 2006-05-31 22:40:51 +0000 | [diff] [blame] | 512 | |
Steve French | f19159d | 2010-04-21 04:12:10 +0000 | [diff] [blame] | 513 | cFYI(1, "LANMAN negotiated"); |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 514 | /* we will not end up setting signing flags - as no signing |
| 515 | was in LANMAN and server did not return the flags on */ |
| 516 | goto signing_check; |
Steve French | 7c7b25b | 2006-06-01 19:20:10 +0000 | [diff] [blame] | 517 | #else /* weak security disabled */ |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 518 | } else if (pSMBr->hdr.WordCount == 13) { |
Steve French | f19159d | 2010-04-21 04:12:10 +0000 | [diff] [blame] | 519 | cERROR(1, "mount failed, cifs module not built " |
| 520 | "with CIFS_WEAK_PW_HASH support"); |
Dan Carpenter | 8212cf7 | 2010-03-15 11:22:26 +0300 | [diff] [blame] | 521 | rc = -EOPNOTSUPP; |
Steve French | 7c7b25b | 2006-06-01 19:20:10 +0000 | [diff] [blame] | 522 | #endif /* WEAK_PW_HASH */ |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 523 | goto neg_err_exit; |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 524 | } else if (pSMBr->hdr.WordCount != 17) { |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 525 | /* unknown wct */ |
| 526 | rc = -EOPNOTSUPP; |
| 527 | goto neg_err_exit; |
| 528 | } |
| 529 | /* else wct == 17 NTLM */ |
| 530 | server->secMode = pSMBr->SecurityMode; |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 531 | if ((server->secMode & SECMODE_USER) == 0) |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 532 | cFYI(1, "share mode security"); |
Steve French | 3979877 | 2006-05-31 22:40:51 +0000 | [diff] [blame] | 533 | |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 534 | if ((server->secMode & SECMODE_PW_ENCRYPT) == 0) |
Steve French | bdc4bf6e | 2006-06-02 22:57:13 +0000 | [diff] [blame] | 535 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
Steve French | 750d115 | 2006-06-27 06:28:30 +0000 | [diff] [blame] | 536 | if ((secFlags & CIFSSEC_MAY_PLNTXT) == 0) |
Steve French | bdc4bf6e | 2006-06-02 22:57:13 +0000 | [diff] [blame] | 537 | #endif /* CIFS_WEAK_PW_HASH */ |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 538 | cERROR(1, "Server requests plain text password" |
| 539 | " but client support disabled"); |
Steve French | 9312f67 | 2006-06-04 22:21:07 +0000 | [diff] [blame] | 540 | |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 541 | if ((secFlags & CIFSSEC_MUST_NTLMV2) == CIFSSEC_MUST_NTLMV2) |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 542 | server->secType = NTLMv2; |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 543 | else if (secFlags & CIFSSEC_MAY_NTLM) |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 544 | server->secType = NTLM; |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 545 | else if (secFlags & CIFSSEC_MAY_NTLMV2) |
Steve French | f40c562 | 2006-06-28 00:13:38 +0000 | [diff] [blame] | 546 | server->secType = NTLMv2; |
Steve French | a013689 | 2007-10-04 20:05:09 +0000 | [diff] [blame] | 547 | else if (secFlags & CIFSSEC_MAY_KRB5) |
| 548 | server->secType = Kerberos; |
Steve French | ac68392 | 2009-05-06 04:16:04 +0000 | [diff] [blame] | 549 | else if (secFlags & CIFSSEC_MAY_NTLMSSP) |
Steve French | f46c723 | 2009-06-25 03:04:20 +0000 | [diff] [blame] | 550 | server->secType = RawNTLMSSP; |
Steve French | a013689 | 2007-10-04 20:05:09 +0000 | [diff] [blame] | 551 | else if (secFlags & CIFSSEC_MAY_LANMAN) |
| 552 | server->secType = LANMAN; |
| 553 | /* #ifdef CONFIG_CIFS_EXPERIMENTAL |
| 554 | else if (secFlags & CIFSSEC_MAY_PLNTXT) |
| 555 | server->secType = ?? |
| 556 | #endif */ |
| 557 | else { |
| 558 | rc = -EOPNOTSUPP; |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 559 | cERROR(1, "Invalid security type"); |
Steve French | a013689 | 2007-10-04 20:05:09 +0000 | [diff] [blame] | 560 | goto neg_err_exit; |
| 561 | } |
| 562 | /* else ... any others ...? */ |
Steve French | 7c7b25b | 2006-06-01 19:20:10 +0000 | [diff] [blame] | 563 | |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 564 | /* one byte, so no need to convert this or EncryptionKeyLen from |
| 565 | little endian */ |
| 566 | server->maxReq = le16_to_cpu(pSMBr->MaxMpxCount); |
| 567 | /* probably no need to store and check maxvcs */ |
| 568 | server->maxBuf = min(le32_to_cpu(pSMBr->MaxBufferSize), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 569 | (__u32) CIFSMaxBufSize + MAX_CIFS_HDR_SIZE); |
Steve French | eca6acf | 2009-02-20 05:43:09 +0000 | [diff] [blame] | 570 | server->max_rw = le32_to_cpu(pSMBr->MaxRawSize); |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 571 | cFYI(DBG2, "Max buf = %d", ses->server->maxBuf); |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 572 | GETU32(ses->server->sessid) = le32_to_cpu(pSMBr->SessionKey); |
| 573 | server->capabilities = le32_to_cpu(pSMBr->Capabilities); |
Steve French | b815f1e5 | 2006-10-02 05:53:29 +0000 | [diff] [blame] | 574 | server->timeAdj = (int)(__s16)le16_to_cpu(pSMBr->ServerTimeZone); |
| 575 | server->timeAdj *= 60; |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 576 | if (pSMBr->EncryptionKeyLength == CIFS_CRYPTO_KEY_SIZE) { |
Shirish Pargaonkar | d3ba50b | 2010-10-27 15:20:36 -0500 | [diff] [blame] | 577 | memcpy(ses->server->cryptkey, pSMBr->u.EncryptionKey, |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 578 | CIFS_CRYPTO_KEY_SIZE); |
| 579 | } else if ((pSMBr->hdr.Flags2 & SMBFLG2_EXT_SEC) |
| 580 | && (pSMBr->EncryptionKeyLength == 0)) { |
| 581 | /* decode security blob */ |
| 582 | } else if (server->secMode & SECMODE_PW_ENCRYPT) { |
| 583 | rc = -EIO; /* no crypt key only if plain text pwd */ |
| 584 | goto neg_err_exit; |
| 585 | } |
| 586 | |
| 587 | /* BB might be helpful to save off the domain of server here */ |
| 588 | |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 589 | if ((pSMBr->hdr.Flags2 & SMBFLG2_EXT_SEC) && |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 590 | (server->capabilities & CAP_EXTENDED_SECURITY)) { |
| 591 | count = pSMBr->ByteCount; |
Jeff Layton | e187e44 | 2007-10-16 17:10:44 +0000 | [diff] [blame] | 592 | if (count < 16) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 593 | rc = -EIO; |
Jeff Layton | e187e44 | 2007-10-16 17:10:44 +0000 | [diff] [blame] | 594 | goto neg_err_exit; |
| 595 | } |
Suresh Jayaraman | 3f9bcca | 2010-10-18 23:29:37 +0530 | [diff] [blame] | 596 | spin_lock(&cifs_tcp_ses_lock); |
Jeff Layton | e7ddee9 | 2008-11-14 13:44:38 -0500 | [diff] [blame] | 597 | if (server->srv_count > 1) { |
Suresh Jayaraman | 3f9bcca | 2010-10-18 23:29:37 +0530 | [diff] [blame] | 598 | spin_unlock(&cifs_tcp_ses_lock); |
Jeff Layton | e187e44 | 2007-10-16 17:10:44 +0000 | [diff] [blame] | 599 | if (memcmp(server->server_GUID, |
| 600 | pSMBr->u.extended_response. |
| 601 | GUID, 16) != 0) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 602 | cFYI(1, "server UID changed"); |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 603 | memcpy(server->server_GUID, |
Jeff Layton | e187e44 | 2007-10-16 17:10:44 +0000 | [diff] [blame] | 604 | pSMBr->u.extended_response.GUID, |
| 605 | 16); |
| 606 | } |
Jeff Layton | e7ddee9 | 2008-11-14 13:44:38 -0500 | [diff] [blame] | 607 | } else { |
Suresh Jayaraman | 3f9bcca | 2010-10-18 23:29:37 +0530 | [diff] [blame] | 608 | spin_unlock(&cifs_tcp_ses_lock); |
Jeff Layton | e187e44 | 2007-10-16 17:10:44 +0000 | [diff] [blame] | 609 | memcpy(server->server_GUID, |
| 610 | pSMBr->u.extended_response.GUID, 16); |
Jeff Layton | e7ddee9 | 2008-11-14 13:44:38 -0500 | [diff] [blame] | 611 | } |
Jeff Layton | e187e44 | 2007-10-16 17:10:44 +0000 | [diff] [blame] | 612 | |
| 613 | if (count == 16) { |
| 614 | server->secType = RawNTLMSSP; |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 615 | } else { |
| 616 | rc = decode_negTokenInit(pSMBr->u.extended_response. |
Jeff Layton | 26efa0b | 2010-04-24 07:57:49 -0400 | [diff] [blame] | 617 | SecurityBlob, count - 16, |
| 618 | server); |
Shirish Pargaonkar | ef571ca | 2008-07-24 15:56:05 +0000 | [diff] [blame] | 619 | if (rc == 1) |
Jeff Layton | e545937 | 2007-11-03 05:11:06 +0000 | [diff] [blame] | 620 | rc = 0; |
Shirish Pargaonkar | ef571ca | 2008-07-24 15:56:05 +0000 | [diff] [blame] | 621 | else |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 622 | rc = -EINVAL; |
Shirish Pargaonkar | 2b149f1 | 2010-09-18 22:02:18 -0500 | [diff] [blame] | 623 | if (server->secType == Kerberos) { |
| 624 | if (!server->sec_kerberos && |
| 625 | !server->sec_mskerberos) |
| 626 | rc = -EOPNOTSUPP; |
| 627 | } else if (server->secType == RawNTLMSSP) { |
| 628 | if (!server->sec_ntlmssp) |
| 629 | rc = -EOPNOTSUPP; |
| 630 | } else |
| 631 | rc = -EOPNOTSUPP; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 632 | } |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 633 | } else |
| 634 | server->capabilities &= ~CAP_EXTENDED_SECURITY; |
| 635 | |
Steve French | 6344a42 | 2006-06-12 04:18:35 +0000 | [diff] [blame] | 636 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 637 | signing_check: |
Steve French | 6344a42 | 2006-06-12 04:18:35 +0000 | [diff] [blame] | 638 | #endif |
Steve French | 762e5ab | 2007-06-28 18:41:42 +0000 | [diff] [blame] | 639 | if ((secFlags & CIFSSEC_MAY_SIGN) == 0) { |
| 640 | /* MUST_SIGN already includes the MAY_SIGN FLAG |
| 641 | so if this is zero it means that signing is disabled */ |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 642 | cFYI(1, "Signing disabled"); |
Steve French | abb63d6 | 2007-10-18 02:58:40 +0000 | [diff] [blame] | 643 | if (server->secMode & SECMODE_SIGN_REQUIRED) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 644 | cERROR(1, "Server requires " |
Jeff Layton | 7111d21 | 2007-10-16 16:50:25 +0000 | [diff] [blame] | 645 | "packet signing to be enabled in " |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 646 | "/proc/fs/cifs/SecurityFlags."); |
Steve French | abb63d6 | 2007-10-18 02:58:40 +0000 | [diff] [blame] | 647 | rc = -EOPNOTSUPP; |
| 648 | } |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 649 | server->secMode &= |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 650 | ~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED); |
Steve French | 762e5ab | 2007-06-28 18:41:42 +0000 | [diff] [blame] | 651 | } else if ((secFlags & CIFSSEC_MUST_SIGN) == CIFSSEC_MUST_SIGN) { |
| 652 | /* signing required */ |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 653 | cFYI(1, "Must sign - secFlags 0x%x", secFlags); |
Steve French | 762e5ab | 2007-06-28 18:41:42 +0000 | [diff] [blame] | 654 | if ((server->secMode & |
| 655 | (SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED)) == 0) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 656 | cERROR(1, "signing required but server lacks support"); |
Jeff | 38c10a1 | 2007-07-06 21:10:07 +0000 | [diff] [blame] | 657 | rc = -EOPNOTSUPP; |
Steve French | 762e5ab | 2007-06-28 18:41:42 +0000 | [diff] [blame] | 658 | } else |
| 659 | server->secMode |= SECMODE_SIGN_REQUIRED; |
| 660 | } else { |
| 661 | /* signing optional ie CIFSSEC_MAY_SIGN */ |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 662 | if ((server->secMode & SECMODE_SIGN_REQUIRED) == 0) |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 663 | server->secMode &= |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 664 | ~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 665 | } |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 666 | |
| 667 | neg_err_exit: |
Steve French | 4a6d87f | 2005-08-13 08:15:54 -0700 | [diff] [blame] | 668 | cifs_buf_release(pSMB); |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 669 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 670 | cFYI(1, "negprot rc %d", rc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 671 | return rc; |
| 672 | } |
| 673 | |
| 674 | int |
| 675 | CIFSSMBTDis(const int xid, struct cifsTconInfo *tcon) |
| 676 | { |
| 677 | struct smb_hdr *smb_buffer; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 678 | int rc = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 679 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 680 | cFYI(1, "In tree disconnect"); |
Jeff Layton | f1987b4 | 2008-11-15 11:12:47 -0500 | [diff] [blame] | 681 | |
| 682 | /* BB: do we need to check this? These should never be NULL. */ |
| 683 | if ((tcon->ses == NULL) || (tcon->ses->server == NULL)) |
| 684 | return -EIO; |
| 685 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 686 | /* |
Jeff Layton | f1987b4 | 2008-11-15 11:12:47 -0500 | [diff] [blame] | 687 | * No need to return error on this operation if tid invalidated and |
| 688 | * closed on server already e.g. due to tcp session crashing. Also, |
| 689 | * the tcon is no longer on the list, so no need to take lock before |
| 690 | * checking this. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 691 | */ |
Steve French | 268875b | 2009-06-25 00:29:21 +0000 | [diff] [blame] | 692 | if ((tcon->need_reconnect) || (tcon->ses->need_reconnect)) |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 693 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 694 | |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 695 | rc = small_smb_init(SMB_COM_TREE_DISCONNECT, 0, tcon, |
Steve French | 09d1db5 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 696 | (void **)&smb_buffer); |
Jeff Layton | f1987b4 | 2008-11-15 11:12:47 -0500 | [diff] [blame] | 697 | if (rc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 698 | return rc; |
Steve French | 133672e | 2007-11-13 22:41:37 +0000 | [diff] [blame] | 699 | |
| 700 | rc = SendReceiveNoRsp(xid, tcon->ses, smb_buffer, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 701 | if (rc) |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 702 | cFYI(1, "Tree disconnect failed %d", rc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 703 | |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 704 | /* No need to return error on this operation if tid invalidated and |
Jeff Layton | f1987b4 | 2008-11-15 11:12:47 -0500 | [diff] [blame] | 705 | closed on server already e.g. due to tcp session crashing */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 706 | if (rc == -EAGAIN) |
| 707 | rc = 0; |
| 708 | |
| 709 | return rc; |
| 710 | } |
| 711 | |
| 712 | int |
| 713 | CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses) |
| 714 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 715 | LOGOFF_ANDX_REQ *pSMB; |
| 716 | int rc = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 717 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 718 | cFYI(1, "In SMBLogoff for session disconnect"); |
Jeff Layton | 14fbf50 | 2008-11-14 13:53:46 -0500 | [diff] [blame] | 719 | |
| 720 | /* |
| 721 | * BB: do we need to check validity of ses and server? They should |
| 722 | * always be valid since we have an active reference. If not, that |
| 723 | * should probably be a BUG() |
| 724 | */ |
| 725 | if (!ses || !ses->server) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 726 | return -EIO; |
| 727 | |
Steve French | d7b619c | 2010-02-25 05:36:46 +0000 | [diff] [blame] | 728 | mutex_lock(&ses->session_mutex); |
Steve French | 3b79521 | 2008-11-13 19:45:32 +0000 | [diff] [blame] | 729 | if (ses->need_reconnect) |
| 730 | goto session_already_dead; /* no need to send SMBlogoff if uid |
| 731 | already closed due to reconnect */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 732 | rc = small_smb_init(SMB_COM_LOGOFF_ANDX, 2, NULL, (void **)&pSMB); |
| 733 | if (rc) { |
Steve French | d7b619c | 2010-02-25 05:36:46 +0000 | [diff] [blame] | 734 | mutex_unlock(&ses->session_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 735 | return rc; |
| 736 | } |
| 737 | |
Steve French | 3b79521 | 2008-11-13 19:45:32 +0000 | [diff] [blame] | 738 | pSMB->hdr.Mid = GetNextMid(ses->server); |
Steve French | 1982c34 | 2005-08-17 12:38:22 -0700 | [diff] [blame] | 739 | |
Steve French | 3b79521 | 2008-11-13 19:45:32 +0000 | [diff] [blame] | 740 | if (ses->server->secMode & |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 741 | (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) |
| 742 | pSMB->hdr.Flags2 |= SMBFLG2_SECURITY_SIGNATURE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 743 | |
| 744 | pSMB->hdr.Uid = ses->Suid; |
| 745 | |
| 746 | pSMB->AndXCommand = 0xFF; |
Steve French | 133672e | 2007-11-13 22:41:37 +0000 | [diff] [blame] | 747 | rc = SendReceiveNoRsp(xid, ses, (struct smb_hdr *) pSMB, 0); |
Steve French | 3b79521 | 2008-11-13 19:45:32 +0000 | [diff] [blame] | 748 | session_already_dead: |
Steve French | d7b619c | 2010-02-25 05:36:46 +0000 | [diff] [blame] | 749 | mutex_unlock(&ses->session_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 750 | |
| 751 | /* if session dead then we do not need to do ulogoff, |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 752 | since server closed smb session, no sense reporting |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 753 | error */ |
| 754 | if (rc == -EAGAIN) |
| 755 | rc = 0; |
| 756 | return rc; |
| 757 | } |
| 758 | |
| 759 | int |
Steve French | 2d785a5 | 2007-07-15 01:48:57 +0000 | [diff] [blame] | 760 | CIFSPOSIXDelFile(const int xid, struct cifsTconInfo *tcon, const char *fileName, |
| 761 | __u16 type, const struct nls_table *nls_codepage, int remap) |
| 762 | { |
| 763 | TRANSACTION2_SPI_REQ *pSMB = NULL; |
| 764 | TRANSACTION2_SPI_RSP *pSMBr = NULL; |
| 765 | struct unlink_psx_rq *pRqD; |
| 766 | int name_len; |
| 767 | int rc = 0; |
| 768 | int bytes_returned = 0; |
| 769 | __u16 params, param_offset, offset, byte_count; |
| 770 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 771 | cFYI(1, "In POSIX delete"); |
Steve French | 2d785a5 | 2007-07-15 01:48:57 +0000 | [diff] [blame] | 772 | PsxDelete: |
| 773 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 774 | (void **) &pSMBr); |
| 775 | if (rc) |
| 776 | return rc; |
| 777 | |
| 778 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 779 | name_len = |
| 780 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
| 781 | PATH_MAX, nls_codepage, remap); |
| 782 | name_len++; /* trailing null */ |
| 783 | name_len *= 2; |
| 784 | } else { /* BB add path length overrun check */ |
| 785 | name_len = strnlen(fileName, PATH_MAX); |
| 786 | name_len++; /* trailing null */ |
| 787 | strncpy(pSMB->FileName, fileName, name_len); |
| 788 | } |
| 789 | |
| 790 | params = 6 + name_len; |
| 791 | pSMB->MaxParameterCount = cpu_to_le16(2); |
| 792 | pSMB->MaxDataCount = 0; /* BB double check this with jra */ |
| 793 | pSMB->MaxSetupCount = 0; |
| 794 | pSMB->Reserved = 0; |
| 795 | pSMB->Flags = 0; |
| 796 | pSMB->Timeout = 0; |
| 797 | pSMB->Reserved2 = 0; |
| 798 | param_offset = offsetof(struct smb_com_transaction2_spi_req, |
| 799 | InformationLevel) - 4; |
| 800 | offset = param_offset + params; |
| 801 | |
| 802 | /* Setup pointer to Request Data (inode type) */ |
| 803 | pRqD = (struct unlink_psx_rq *)(((char *)&pSMB->hdr.Protocol) + offset); |
| 804 | pRqD->type = cpu_to_le16(type); |
| 805 | pSMB->ParameterOffset = cpu_to_le16(param_offset); |
| 806 | pSMB->DataOffset = cpu_to_le16(offset); |
| 807 | pSMB->SetupCount = 1; |
| 808 | pSMB->Reserved3 = 0; |
| 809 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); |
| 810 | byte_count = 3 /* pad */ + params + sizeof(struct unlink_psx_rq); |
| 811 | |
| 812 | pSMB->DataCount = cpu_to_le16(sizeof(struct unlink_psx_rq)); |
| 813 | pSMB->TotalDataCount = cpu_to_le16(sizeof(struct unlink_psx_rq)); |
| 814 | pSMB->ParameterCount = cpu_to_le16(params); |
| 815 | pSMB->TotalParameterCount = pSMB->ParameterCount; |
| 816 | pSMB->InformationLevel = cpu_to_le16(SMB_POSIX_UNLINK); |
| 817 | pSMB->Reserved4 = 0; |
| 818 | pSMB->hdr.smb_buf_length += byte_count; |
| 819 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 820 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 821 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 822 | if (rc) |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 823 | cFYI(1, "Posix delete returned %d", rc); |
Steve French | 2d785a5 | 2007-07-15 01:48:57 +0000 | [diff] [blame] | 824 | cifs_buf_release(pSMB); |
| 825 | |
| 826 | cifs_stats_inc(&tcon->num_deletes); |
| 827 | |
| 828 | if (rc == -EAGAIN) |
| 829 | goto PsxDelete; |
| 830 | |
| 831 | return rc; |
| 832 | } |
| 833 | |
| 834 | int |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 835 | CIFSSMBDelFile(const int xid, struct cifsTconInfo *tcon, const char *fileName, |
| 836 | const struct nls_table *nls_codepage, int remap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 837 | { |
| 838 | DELETE_FILE_REQ *pSMB = NULL; |
| 839 | DELETE_FILE_RSP *pSMBr = NULL; |
| 840 | int rc = 0; |
| 841 | int bytes_returned; |
| 842 | int name_len; |
| 843 | |
| 844 | DelFileRetry: |
| 845 | rc = smb_init(SMB_COM_DELETE, 1, tcon, (void **) &pSMB, |
| 846 | (void **) &pSMBr); |
| 847 | if (rc) |
| 848 | return rc; |
| 849 | |
| 850 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 851 | name_len = |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 852 | cifsConvertToUCS((__le16 *) pSMB->fileName, fileName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 853 | PATH_MAX, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 854 | name_len++; /* trailing null */ |
| 855 | name_len *= 2; |
Steve French | 09d1db5 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 856 | } else { /* BB improve check for buffer overruns BB */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 857 | name_len = strnlen(fileName, PATH_MAX); |
| 858 | name_len++; /* trailing null */ |
| 859 | strncpy(pSMB->fileName, fileName, name_len); |
| 860 | } |
| 861 | pSMB->SearchAttributes = |
| 862 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM); |
| 863 | pSMB->BufferFormat = 0x04; |
| 864 | pSMB->hdr.smb_buf_length += name_len + 1; |
| 865 | pSMB->ByteCount = cpu_to_le16(name_len + 1); |
| 866 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 867 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 868 | cifs_stats_inc(&tcon->num_deletes); |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 869 | if (rc) |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 870 | cFYI(1, "Error in RMFile = %d", rc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 871 | |
| 872 | cifs_buf_release(pSMB); |
| 873 | if (rc == -EAGAIN) |
| 874 | goto DelFileRetry; |
| 875 | |
| 876 | return rc; |
| 877 | } |
| 878 | |
| 879 | int |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 880 | CIFSSMBRmDir(const int xid, struct cifsTconInfo *tcon, const char *dirName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 881 | const struct nls_table *nls_codepage, int remap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 882 | { |
| 883 | DELETE_DIRECTORY_REQ *pSMB = NULL; |
| 884 | DELETE_DIRECTORY_RSP *pSMBr = NULL; |
| 885 | int rc = 0; |
| 886 | int bytes_returned; |
| 887 | int name_len; |
| 888 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 889 | cFYI(1, "In CIFSSMBRmDir"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 890 | RmDirRetry: |
| 891 | rc = smb_init(SMB_COM_DELETE_DIRECTORY, 0, tcon, (void **) &pSMB, |
| 892 | (void **) &pSMBr); |
| 893 | if (rc) |
| 894 | return rc; |
| 895 | |
| 896 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 897 | name_len = cifsConvertToUCS((__le16 *) pSMB->DirName, dirName, |
| 898 | PATH_MAX, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 899 | name_len++; /* trailing null */ |
| 900 | name_len *= 2; |
Steve French | 09d1db5 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 901 | } else { /* BB improve check for buffer overruns BB */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 902 | name_len = strnlen(dirName, PATH_MAX); |
| 903 | name_len++; /* trailing null */ |
| 904 | strncpy(pSMB->DirName, dirName, name_len); |
| 905 | } |
| 906 | |
| 907 | pSMB->BufferFormat = 0x04; |
| 908 | pSMB->hdr.smb_buf_length += name_len + 1; |
| 909 | pSMB->ByteCount = cpu_to_le16(name_len + 1); |
| 910 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 911 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 912 | cifs_stats_inc(&tcon->num_rmdirs); |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 913 | if (rc) |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 914 | cFYI(1, "Error in RMDir = %d", rc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 915 | |
| 916 | cifs_buf_release(pSMB); |
| 917 | if (rc == -EAGAIN) |
| 918 | goto RmDirRetry; |
| 919 | return rc; |
| 920 | } |
| 921 | |
| 922 | int |
| 923 | CIFSSMBMkDir(const int xid, struct cifsTconInfo *tcon, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 924 | const char *name, const struct nls_table *nls_codepage, int remap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 925 | { |
| 926 | int rc = 0; |
| 927 | CREATE_DIRECTORY_REQ *pSMB = NULL; |
| 928 | CREATE_DIRECTORY_RSP *pSMBr = NULL; |
| 929 | int bytes_returned; |
| 930 | int name_len; |
| 931 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 932 | cFYI(1, "In CIFSSMBMkDir"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 933 | MkDirRetry: |
| 934 | rc = smb_init(SMB_COM_CREATE_DIRECTORY, 0, tcon, (void **) &pSMB, |
| 935 | (void **) &pSMBr); |
| 936 | if (rc) |
| 937 | return rc; |
| 938 | |
| 939 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 940 | name_len = cifsConvertToUCS((__le16 *) pSMB->DirName, name, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 941 | PATH_MAX, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 942 | name_len++; /* trailing null */ |
| 943 | name_len *= 2; |
Steve French | 09d1db5 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 944 | } else { /* BB improve check for buffer overruns BB */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 945 | name_len = strnlen(name, PATH_MAX); |
| 946 | name_len++; /* trailing null */ |
| 947 | strncpy(pSMB->DirName, name, name_len); |
| 948 | } |
| 949 | |
| 950 | pSMB->BufferFormat = 0x04; |
| 951 | pSMB->hdr.smb_buf_length += name_len + 1; |
| 952 | pSMB->ByteCount = cpu_to_le16(name_len + 1); |
| 953 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 954 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 955 | cifs_stats_inc(&tcon->num_mkdirs); |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 956 | if (rc) |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 957 | cFYI(1, "Error in Mkdir = %d", rc); |
Steve French | a5a2b48 | 2005-08-20 21:42:53 -0700 | [diff] [blame] | 958 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 959 | cifs_buf_release(pSMB); |
| 960 | if (rc == -EAGAIN) |
| 961 | goto MkDirRetry; |
| 962 | return rc; |
| 963 | } |
| 964 | |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 965 | int |
| 966 | CIFSPOSIXCreate(const int xid, struct cifsTconInfo *tcon, __u32 posix_flags, |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 967 | __u64 mode, __u16 *netfid, FILE_UNIX_BASIC_INFO *pRetData, |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 968 | __u32 *pOplock, const char *name, |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 969 | const struct nls_table *nls_codepage, int remap) |
| 970 | { |
| 971 | TRANSACTION2_SPI_REQ *pSMB = NULL; |
| 972 | TRANSACTION2_SPI_RSP *pSMBr = NULL; |
| 973 | int name_len; |
| 974 | int rc = 0; |
| 975 | int bytes_returned = 0; |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 976 | __u16 params, param_offset, offset, byte_count, count; |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 977 | OPEN_PSX_REQ *pdata; |
| 978 | OPEN_PSX_RSP *psx_rsp; |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 979 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 980 | cFYI(1, "In POSIX Create"); |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 981 | PsxCreat: |
| 982 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 983 | (void **) &pSMBr); |
| 984 | if (rc) |
| 985 | return rc; |
| 986 | |
| 987 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 988 | name_len = |
| 989 | cifsConvertToUCS((__le16 *) pSMB->FileName, name, |
| 990 | PATH_MAX, nls_codepage, remap); |
| 991 | name_len++; /* trailing null */ |
| 992 | name_len *= 2; |
| 993 | } else { /* BB improve the check for buffer overruns BB */ |
| 994 | name_len = strnlen(name, PATH_MAX); |
| 995 | name_len++; /* trailing null */ |
| 996 | strncpy(pSMB->FileName, name, name_len); |
| 997 | } |
| 998 | |
| 999 | params = 6 + name_len; |
| 1000 | count = sizeof(OPEN_PSX_REQ); |
| 1001 | pSMB->MaxParameterCount = cpu_to_le16(2); |
| 1002 | pSMB->MaxDataCount = cpu_to_le16(1000); /* large enough */ |
| 1003 | pSMB->MaxSetupCount = 0; |
| 1004 | pSMB->Reserved = 0; |
| 1005 | pSMB->Flags = 0; |
| 1006 | pSMB->Timeout = 0; |
| 1007 | pSMB->Reserved2 = 0; |
| 1008 | param_offset = offsetof(struct smb_com_transaction2_spi_req, |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 1009 | InformationLevel) - 4; |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 1010 | offset = param_offset + params; |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 1011 | pdata = (OPEN_PSX_REQ *)(((char *)&pSMB->hdr.Protocol) + offset); |
Cyril Gorcunov | 8f2376a | 2007-10-14 17:58:43 +0000 | [diff] [blame] | 1012 | pdata->Level = cpu_to_le16(SMB_QUERY_FILE_UNIX_BASIC); |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 1013 | pdata->Permissions = cpu_to_le64(mode); |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 1014 | pdata->PosixOpenFlags = cpu_to_le32(posix_flags); |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 1015 | pdata->OpenFlags = cpu_to_le32(*pOplock); |
| 1016 | pSMB->ParameterOffset = cpu_to_le16(param_offset); |
| 1017 | pSMB->DataOffset = cpu_to_le16(offset); |
| 1018 | pSMB->SetupCount = 1; |
| 1019 | pSMB->Reserved3 = 0; |
| 1020 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); |
| 1021 | byte_count = 3 /* pad */ + params + count; |
| 1022 | |
| 1023 | pSMB->DataCount = cpu_to_le16(count); |
| 1024 | pSMB->ParameterCount = cpu_to_le16(params); |
| 1025 | pSMB->TotalDataCount = pSMB->DataCount; |
| 1026 | pSMB->TotalParameterCount = pSMB->ParameterCount; |
| 1027 | pSMB->InformationLevel = cpu_to_le16(SMB_POSIX_OPEN); |
| 1028 | pSMB->Reserved4 = 0; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 1029 | pSMB->hdr.smb_buf_length += byte_count; |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 1030 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 1031 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 1032 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 1033 | if (rc) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 1034 | cFYI(1, "Posix create returned %d", rc); |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 1035 | goto psx_create_err; |
| 1036 | } |
| 1037 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 1038 | cFYI(1, "copying inode info"); |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 1039 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
| 1040 | |
| 1041 | if (rc || (pSMBr->ByteCount < sizeof(OPEN_PSX_RSP))) { |
| 1042 | rc = -EIO; /* bad smb */ |
| 1043 | goto psx_create_err; |
| 1044 | } |
| 1045 | |
| 1046 | /* copy return information to pRetData */ |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 1047 | psx_rsp = (OPEN_PSX_RSP *)((char *) &pSMBr->hdr.Protocol |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 1048 | + le16_to_cpu(pSMBr->t2.DataOffset)); |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 1049 | |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 1050 | *pOplock = le16_to_cpu(psx_rsp->OplockFlags); |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 1051 | if (netfid) |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 1052 | *netfid = psx_rsp->Fid; /* cifs fid stays in le */ |
| 1053 | /* Let caller know file was created so we can set the mode. */ |
| 1054 | /* Do we care about the CreateAction in any other cases? */ |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 1055 | if (cpu_to_le32(FILE_CREATE) == psx_rsp->CreateAction) |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 1056 | *pOplock |= CIFS_CREATE_ACTION; |
| 1057 | /* check to make sure response data is there */ |
Cyril Gorcunov | 8f2376a | 2007-10-14 17:58:43 +0000 | [diff] [blame] | 1058 | if (psx_rsp->ReturnedLevel != cpu_to_le16(SMB_QUERY_FILE_UNIX_BASIC)) { |
| 1059 | pRetData->Type = cpu_to_le32(-1); /* unknown */ |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 1060 | cFYI(DBG2, "unknown type"); |
Steve French | cbac3cb | 2007-04-25 11:46:06 +0000 | [diff] [blame] | 1061 | } else { |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 1062 | if (pSMBr->ByteCount < sizeof(OPEN_PSX_RSP) |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 1063 | + sizeof(FILE_UNIX_BASIC_INFO)) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 1064 | cERROR(1, "Open response data too small"); |
Cyril Gorcunov | 8f2376a | 2007-10-14 17:58:43 +0000 | [diff] [blame] | 1065 | pRetData->Type = cpu_to_le32(-1); |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 1066 | goto psx_create_err; |
| 1067 | } |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 1068 | memcpy((char *) pRetData, |
Steve French | cbac3cb | 2007-04-25 11:46:06 +0000 | [diff] [blame] | 1069 | (char *)psx_rsp + sizeof(OPEN_PSX_RSP), |
Steve French | 26f5736 | 2007-08-30 22:09:15 +0000 | [diff] [blame] | 1070 | sizeof(FILE_UNIX_BASIC_INFO)); |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 1071 | } |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 1072 | |
| 1073 | psx_create_err: |
| 1074 | cifs_buf_release(pSMB); |
| 1075 | |
Steve French | 65bc98b | 2009-07-10 15:27:25 +0000 | [diff] [blame] | 1076 | if (posix_flags & SMB_O_DIRECTORY) |
| 1077 | cifs_stats_inc(&tcon->num_posixmkdirs); |
| 1078 | else |
| 1079 | cifs_stats_inc(&tcon->num_posixopens); |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 1080 | |
| 1081 | if (rc == -EAGAIN) |
| 1082 | goto PsxCreat; |
| 1083 | |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 1084 | return rc; |
Steve French | 2dd29d3 | 2007-04-23 22:07:35 +0000 | [diff] [blame] | 1085 | } |
| 1086 | |
Steve French | a9d02ad | 2005-08-24 23:06:05 -0700 | [diff] [blame] | 1087 | static __u16 convert_disposition(int disposition) |
| 1088 | { |
| 1089 | __u16 ofun = 0; |
| 1090 | |
| 1091 | switch (disposition) { |
| 1092 | case FILE_SUPERSEDE: |
| 1093 | ofun = SMBOPEN_OCREATE | SMBOPEN_OTRUNC; |
| 1094 | break; |
| 1095 | case FILE_OPEN: |
| 1096 | ofun = SMBOPEN_OAPPEND; |
| 1097 | break; |
| 1098 | case FILE_CREATE: |
| 1099 | ofun = SMBOPEN_OCREATE; |
| 1100 | break; |
| 1101 | case FILE_OPEN_IF: |
| 1102 | ofun = SMBOPEN_OCREATE | SMBOPEN_OAPPEND; |
| 1103 | break; |
| 1104 | case FILE_OVERWRITE: |
| 1105 | ofun = SMBOPEN_OTRUNC; |
| 1106 | break; |
| 1107 | case FILE_OVERWRITE_IF: |
| 1108 | ofun = SMBOPEN_OCREATE | SMBOPEN_OTRUNC; |
| 1109 | break; |
| 1110 | default: |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 1111 | cFYI(1, "unknown disposition %d", disposition); |
Steve French | a9d02ad | 2005-08-24 23:06:05 -0700 | [diff] [blame] | 1112 | ofun = SMBOPEN_OAPPEND; /* regular open */ |
| 1113 | } |
| 1114 | return ofun; |
| 1115 | } |
| 1116 | |
Jeff Layton | 35fc37d | 2008-05-14 10:22:03 -0700 | [diff] [blame] | 1117 | static int |
| 1118 | access_flags_to_smbopen_mode(const int access_flags) |
| 1119 | { |
| 1120 | int masked_flags = access_flags & (GENERIC_READ | GENERIC_WRITE); |
| 1121 | |
| 1122 | if (masked_flags == GENERIC_READ) |
| 1123 | return SMBOPEN_READ; |
| 1124 | else if (masked_flags == GENERIC_WRITE) |
| 1125 | return SMBOPEN_WRITE; |
| 1126 | |
| 1127 | /* just go for read/write */ |
| 1128 | return SMBOPEN_READWRITE; |
| 1129 | } |
| 1130 | |
Steve French | a9d02ad | 2005-08-24 23:06:05 -0700 | [diff] [blame] | 1131 | int |
| 1132 | SMBLegacyOpen(const int xid, struct cifsTconInfo *tcon, |
| 1133 | const char *fileName, const int openDisposition, |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 1134 | const int access_flags, const int create_options, __u16 *netfid, |
| 1135 | int *pOplock, FILE_ALL_INFO *pfile_info, |
Steve French | a9d02ad | 2005-08-24 23:06:05 -0700 | [diff] [blame] | 1136 | const struct nls_table *nls_codepage, int remap) |
| 1137 | { |
| 1138 | int rc = -EACCES; |
| 1139 | OPENX_REQ *pSMB = NULL; |
| 1140 | OPENX_RSP *pSMBr = NULL; |
| 1141 | int bytes_returned; |
| 1142 | int name_len; |
| 1143 | __u16 count; |
| 1144 | |
| 1145 | OldOpenRetry: |
| 1146 | rc = smb_init(SMB_COM_OPEN_ANDX, 15, tcon, (void **) &pSMB, |
| 1147 | (void **) &pSMBr); |
| 1148 | if (rc) |
| 1149 | return rc; |
| 1150 | |
| 1151 | pSMB->AndXCommand = 0xFF; /* none */ |
| 1152 | |
| 1153 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 1154 | count = 1; /* account for one byte pad to word boundary */ |
| 1155 | name_len = |
| 1156 | cifsConvertToUCS((__le16 *) (pSMB->fileName + 1), |
| 1157 | fileName, PATH_MAX, nls_codepage, remap); |
| 1158 | name_len++; /* trailing null */ |
| 1159 | name_len *= 2; |
| 1160 | } else { /* BB improve check for buffer overruns BB */ |
| 1161 | count = 0; /* no pad */ |
| 1162 | name_len = strnlen(fileName, PATH_MAX); |
| 1163 | name_len++; /* trailing null */ |
| 1164 | strncpy(pSMB->fileName, fileName, name_len); |
| 1165 | } |
| 1166 | if (*pOplock & REQ_OPLOCK) |
| 1167 | pSMB->OpenFlags = cpu_to_le16(REQ_OPLOCK); |
Steve French | 26f5736 | 2007-08-30 22:09:15 +0000 | [diff] [blame] | 1168 | else if (*pOplock & REQ_BATCHOPLOCK) |
Steve French | a9d02ad | 2005-08-24 23:06:05 -0700 | [diff] [blame] | 1169 | pSMB->OpenFlags = cpu_to_le16(REQ_BATCHOPLOCK); |
Steve French | 26f5736 | 2007-08-30 22:09:15 +0000 | [diff] [blame] | 1170 | |
Steve French | a9d02ad | 2005-08-24 23:06:05 -0700 | [diff] [blame] | 1171 | pSMB->OpenFlags |= cpu_to_le16(REQ_MORE_INFO); |
Jeff Layton | 35fc37d | 2008-05-14 10:22:03 -0700 | [diff] [blame] | 1172 | pSMB->Mode = cpu_to_le16(access_flags_to_smbopen_mode(access_flags)); |
Steve French | a9d02ad | 2005-08-24 23:06:05 -0700 | [diff] [blame] | 1173 | pSMB->Mode |= cpu_to_le16(0x40); /* deny none */ |
| 1174 | /* set file as system file if special file such |
| 1175 | as fifo and server expecting SFU style and |
| 1176 | no Unix extensions */ |
| 1177 | |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 1178 | if (create_options & CREATE_OPTION_SPECIAL) |
| 1179 | pSMB->FileAttributes = cpu_to_le16(ATTR_SYSTEM); |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 1180 | else /* BB FIXME BB */ |
| 1181 | pSMB->FileAttributes = cpu_to_le16(0/*ATTR_NORMAL*/); |
Steve French | a9d02ad | 2005-08-24 23:06:05 -0700 | [diff] [blame] | 1182 | |
Jeff Layton | 67750fb | 2008-05-09 22:28:02 +0000 | [diff] [blame] | 1183 | if (create_options & CREATE_OPTION_READONLY) |
| 1184 | pSMB->FileAttributes |= cpu_to_le16(ATTR_READONLY); |
Steve French | a9d02ad | 2005-08-24 23:06:05 -0700 | [diff] [blame] | 1185 | |
| 1186 | /* BB FIXME BB */ |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 1187 | /* pSMB->CreateOptions = cpu_to_le32(create_options & |
| 1188 | CREATE_OPTIONS_MASK); */ |
Steve French | a9d02ad | 2005-08-24 23:06:05 -0700 | [diff] [blame] | 1189 | /* BB FIXME END BB */ |
Steve French | 3e87d80 | 2005-09-18 20:49:21 -0700 | [diff] [blame] | 1190 | |
| 1191 | pSMB->Sattr = cpu_to_le16(ATTR_HIDDEN | ATTR_SYSTEM | ATTR_DIRECTORY); |
Steve French | 70ca734 | 2005-09-22 16:32:06 -0700 | [diff] [blame] | 1192 | pSMB->OpenFunction = cpu_to_le16(convert_disposition(openDisposition)); |
Steve French | a9d02ad | 2005-08-24 23:06:05 -0700 | [diff] [blame] | 1193 | count += name_len; |
| 1194 | pSMB->hdr.smb_buf_length += count; |
| 1195 | |
| 1196 | pSMB->ByteCount = cpu_to_le16(count); |
| 1197 | /* long_op set to 1 to allow for oplock break timeouts */ |
| 1198 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
Steve French | 133672e | 2007-11-13 22:41:37 +0000 | [diff] [blame] | 1199 | (struct smb_hdr *)pSMBr, &bytes_returned, CIFS_LONG_OP); |
Steve French | a9d02ad | 2005-08-24 23:06:05 -0700 | [diff] [blame] | 1200 | cifs_stats_inc(&tcon->num_opens); |
| 1201 | if (rc) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 1202 | cFYI(1, "Error in Open = %d", rc); |
Steve French | a9d02ad | 2005-08-24 23:06:05 -0700 | [diff] [blame] | 1203 | } else { |
| 1204 | /* BB verify if wct == 15 */ |
| 1205 | |
Steve French | 582d21e | 2008-05-13 04:54:12 +0000 | [diff] [blame] | 1206 | /* *pOplock = pSMBr->OplockLevel; */ /* BB take from action field*/ |
Steve French | a9d02ad | 2005-08-24 23:06:05 -0700 | [diff] [blame] | 1207 | |
| 1208 | *netfid = pSMBr->Fid; /* cifs fid stays in le */ |
| 1209 | /* Let caller know file was created so we can set the mode. */ |
| 1210 | /* Do we care about the CreateAction in any other cases? */ |
| 1211 | /* BB FIXME BB */ |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 1212 | /* if (cpu_to_le32(FILE_CREATE) == pSMBr->CreateAction) |
Steve French | a9d02ad | 2005-08-24 23:06:05 -0700 | [diff] [blame] | 1213 | *pOplock |= CIFS_CREATE_ACTION; */ |
| 1214 | /* BB FIXME END */ |
| 1215 | |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 1216 | if (pfile_info) { |
Steve French | a9d02ad | 2005-08-24 23:06:05 -0700 | [diff] [blame] | 1217 | pfile_info->CreationTime = 0; /* BB convert CreateTime*/ |
| 1218 | pfile_info->LastAccessTime = 0; /* BB fixme */ |
| 1219 | pfile_info->LastWriteTime = 0; /* BB fixme */ |
| 1220 | pfile_info->ChangeTime = 0; /* BB fixme */ |
Steve French | 70ca734 | 2005-09-22 16:32:06 -0700 | [diff] [blame] | 1221 | pfile_info->Attributes = |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 1222 | cpu_to_le32(le16_to_cpu(pSMBr->FileAttributes)); |
Steve French | a9d02ad | 2005-08-24 23:06:05 -0700 | [diff] [blame] | 1223 | /* the file_info buf is endian converted by caller */ |
Steve French | 70ca734 | 2005-09-22 16:32:06 -0700 | [diff] [blame] | 1224 | pfile_info->AllocationSize = |
| 1225 | cpu_to_le64(le32_to_cpu(pSMBr->EndOfFile)); |
| 1226 | pfile_info->EndOfFile = pfile_info->AllocationSize; |
Steve French | a9d02ad | 2005-08-24 23:06:05 -0700 | [diff] [blame] | 1227 | pfile_info->NumberOfLinks = cpu_to_le32(1); |
Jeff Layton | 9a8165f | 2008-10-17 21:03:20 -0400 | [diff] [blame] | 1228 | pfile_info->DeletePending = 0; |
Steve French | a9d02ad | 2005-08-24 23:06:05 -0700 | [diff] [blame] | 1229 | } |
| 1230 | } |
| 1231 | |
| 1232 | cifs_buf_release(pSMB); |
| 1233 | if (rc == -EAGAIN) |
| 1234 | goto OldOpenRetry; |
| 1235 | return rc; |
| 1236 | } |
| 1237 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1238 | int |
| 1239 | CIFSSMBOpen(const int xid, struct cifsTconInfo *tcon, |
| 1240 | const char *fileName, const int openDisposition, |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 1241 | const int access_flags, const int create_options, __u16 *netfid, |
| 1242 | int *pOplock, FILE_ALL_INFO *pfile_info, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1243 | const struct nls_table *nls_codepage, int remap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1244 | { |
| 1245 | int rc = -EACCES; |
| 1246 | OPEN_REQ *pSMB = NULL; |
| 1247 | OPEN_RSP *pSMBr = NULL; |
| 1248 | int bytes_returned; |
| 1249 | int name_len; |
| 1250 | __u16 count; |
| 1251 | |
| 1252 | openRetry: |
| 1253 | rc = smb_init(SMB_COM_NT_CREATE_ANDX, 24, tcon, (void **) &pSMB, |
| 1254 | (void **) &pSMBr); |
| 1255 | if (rc) |
| 1256 | return rc; |
| 1257 | |
| 1258 | pSMB->AndXCommand = 0xFF; /* none */ |
| 1259 | |
| 1260 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 1261 | count = 1; /* account for one byte pad to word boundary */ |
| 1262 | name_len = |
Steve French | b1a4569 | 2005-05-17 16:07:23 -0500 | [diff] [blame] | 1263 | cifsConvertToUCS((__le16 *) (pSMB->fileName + 1), |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1264 | fileName, PATH_MAX, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1265 | name_len++; /* trailing null */ |
| 1266 | name_len *= 2; |
| 1267 | pSMB->NameLength = cpu_to_le16(name_len); |
Steve French | 09d1db5 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 1268 | } else { /* BB improve check for buffer overruns BB */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1269 | count = 0; /* no pad */ |
| 1270 | name_len = strnlen(fileName, PATH_MAX); |
| 1271 | name_len++; /* trailing null */ |
| 1272 | pSMB->NameLength = cpu_to_le16(name_len); |
| 1273 | strncpy(pSMB->fileName, fileName, name_len); |
| 1274 | } |
| 1275 | if (*pOplock & REQ_OPLOCK) |
| 1276 | pSMB->OpenFlags = cpu_to_le32(REQ_OPLOCK); |
Steve French | 26f5736 | 2007-08-30 22:09:15 +0000 | [diff] [blame] | 1277 | else if (*pOplock & REQ_BATCHOPLOCK) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1278 | pSMB->OpenFlags = cpu_to_le32(REQ_BATCHOPLOCK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1279 | pSMB->DesiredAccess = cpu_to_le32(access_flags); |
| 1280 | pSMB->AllocationSize = 0; |
Steve French | eda3c029 | 2005-07-21 15:20:28 -0700 | [diff] [blame] | 1281 | /* set file as system file if special file such |
| 1282 | as fifo and server expecting SFU style and |
| 1283 | no Unix extensions */ |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 1284 | if (create_options & CREATE_OPTION_SPECIAL) |
Steve French | eda3c029 | 2005-07-21 15:20:28 -0700 | [diff] [blame] | 1285 | pSMB->FileAttributes = cpu_to_le32(ATTR_SYSTEM); |
| 1286 | else |
| 1287 | pSMB->FileAttributes = cpu_to_le32(ATTR_NORMAL); |
Jeff Layton | 67750fb | 2008-05-09 22:28:02 +0000 | [diff] [blame] | 1288 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1289 | /* XP does not handle ATTR_POSIX_SEMANTICS */ |
| 1290 | /* but it helps speed up case sensitive checks for other |
| 1291 | servers such as Samba */ |
| 1292 | if (tcon->ses->capabilities & CAP_UNIX) |
| 1293 | pSMB->FileAttributes |= cpu_to_le32(ATTR_POSIX_SEMANTICS); |
| 1294 | |
Jeff Layton | 67750fb | 2008-05-09 22:28:02 +0000 | [diff] [blame] | 1295 | if (create_options & CREATE_OPTION_READONLY) |
| 1296 | pSMB->FileAttributes |= cpu_to_le32(ATTR_READONLY); |
| 1297 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1298 | pSMB->ShareAccess = cpu_to_le32(FILE_SHARE_ALL); |
| 1299 | pSMB->CreateDisposition = cpu_to_le32(openDisposition); |
Steve French | eda3c029 | 2005-07-21 15:20:28 -0700 | [diff] [blame] | 1300 | pSMB->CreateOptions = cpu_to_le32(create_options & CREATE_OPTIONS_MASK); |
Steve French | 09d1db5 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 1301 | /* BB Expirement with various impersonation levels and verify */ |
| 1302 | pSMB->ImpersonationLevel = cpu_to_le32(SECURITY_IMPERSONATION); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1303 | pSMB->SecurityFlags = |
| 1304 | SECURITY_CONTEXT_TRACKING | SECURITY_EFFECTIVE_ONLY; |
| 1305 | |
| 1306 | count += name_len; |
| 1307 | pSMB->hdr.smb_buf_length += count; |
| 1308 | |
| 1309 | pSMB->ByteCount = cpu_to_le16(count); |
| 1310 | /* long_op set to 1 to allow for oplock break timeouts */ |
| 1311 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
Steve French | 133672e | 2007-11-13 22:41:37 +0000 | [diff] [blame] | 1312 | (struct smb_hdr *)pSMBr, &bytes_returned, CIFS_LONG_OP); |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 1313 | cifs_stats_inc(&tcon->num_opens); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1314 | if (rc) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 1315 | cFYI(1, "Error in Open = %d", rc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1316 | } else { |
Steve French | 09d1db5 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 1317 | *pOplock = pSMBr->OplockLevel; /* 1 byte no need to le_to_cpu */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1318 | *netfid = pSMBr->Fid; /* cifs fid stays in le */ |
| 1319 | /* Let caller know file was created so we can set the mode. */ |
| 1320 | /* Do we care about the CreateAction in any other cases? */ |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 1321 | if (cpu_to_le32(FILE_CREATE) == pSMBr->CreateAction) |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 1322 | *pOplock |= CIFS_CREATE_ACTION; |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 1323 | if (pfile_info) { |
Steve French | 61e7480 | 2008-12-03 00:57:54 +0000 | [diff] [blame] | 1324 | memcpy((char *)pfile_info, (char *)&pSMBr->CreationTime, |
| 1325 | 36 /* CreationTime to Attributes */); |
| 1326 | /* the file_info buf is endian converted by caller */ |
| 1327 | pfile_info->AllocationSize = pSMBr->AllocationSize; |
| 1328 | pfile_info->EndOfFile = pSMBr->EndOfFile; |
| 1329 | pfile_info->NumberOfLinks = cpu_to_le32(1); |
| 1330 | pfile_info->DeletePending = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1331 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1332 | } |
Steve French | a5a2b48 | 2005-08-20 21:42:53 -0700 | [diff] [blame] | 1333 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1334 | cifs_buf_release(pSMB); |
| 1335 | if (rc == -EAGAIN) |
| 1336 | goto openRetry; |
| 1337 | return rc; |
| 1338 | } |
| 1339 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1340 | int |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 1341 | CIFSSMBRead(const int xid, struct cifsTconInfo *tcon, const int netfid, |
| 1342 | const unsigned int count, const __u64 lseek, unsigned int *nbytes, |
| 1343 | char **buf, int *pbuf_type) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1344 | { |
| 1345 | int rc = -EACCES; |
| 1346 | READ_REQ *pSMB = NULL; |
| 1347 | READ_RSP *pSMBr = NULL; |
| 1348 | char *pReadData = NULL; |
Steve French | bfa0d75 | 2005-08-31 21:50:37 -0700 | [diff] [blame] | 1349 | int wct; |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1350 | int resp_buf_type = 0; |
| 1351 | struct kvec iov[1]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1352 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 1353 | cFYI(1, "Reading %d bytes on fid %d", count, netfid); |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 1354 | if (tcon->ses->capabilities & CAP_LARGE_FILES) |
Steve French | bfa0d75 | 2005-08-31 21:50:37 -0700 | [diff] [blame] | 1355 | wct = 12; |
Steve French | 4c3130e | 2008-12-09 00:28:16 +0000 | [diff] [blame] | 1356 | else { |
Steve French | bfa0d75 | 2005-08-31 21:50:37 -0700 | [diff] [blame] | 1357 | wct = 10; /* old style read */ |
Steve French | 4c3130e | 2008-12-09 00:28:16 +0000 | [diff] [blame] | 1358 | if ((lseek >> 32) > 0) { |
| 1359 | /* can not handle this big offset for old */ |
| 1360 | return -EIO; |
| 1361 | } |
| 1362 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1363 | |
| 1364 | *nbytes = 0; |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1365 | rc = small_smb_init(SMB_COM_READ_ANDX, wct, tcon, (void **) &pSMB); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1366 | if (rc) |
| 1367 | return rc; |
| 1368 | |
| 1369 | /* tcon and ses pointer are checked in smb_init */ |
| 1370 | if (tcon->ses->server == NULL) |
| 1371 | return -ECONNABORTED; |
| 1372 | |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1373 | pSMB->AndXCommand = 0xFF; /* none */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1374 | pSMB->Fid = netfid; |
| 1375 | pSMB->OffsetLow = cpu_to_le32(lseek & 0xFFFFFFFF); |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 1376 | if (wct == 12) |
Steve French | bfa0d75 | 2005-08-31 21:50:37 -0700 | [diff] [blame] | 1377 | pSMB->OffsetHigh = cpu_to_le32(lseek >> 32); |
Steve French | bfa0d75 | 2005-08-31 21:50:37 -0700 | [diff] [blame] | 1378 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1379 | pSMB->Remaining = 0; |
| 1380 | pSMB->MaxCount = cpu_to_le16(count & 0xFFFF); |
| 1381 | pSMB->MaxCountHigh = cpu_to_le32(count >> 16); |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 1382 | if (wct == 12) |
Steve French | bfa0d75 | 2005-08-31 21:50:37 -0700 | [diff] [blame] | 1383 | pSMB->ByteCount = 0; /* no need to do le conversion since 0 */ |
| 1384 | else { |
| 1385 | /* old style read */ |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 1386 | struct smb_com_readx_req *pSMBW = |
Steve French | bfa0d75 | 2005-08-31 21:50:37 -0700 | [diff] [blame] | 1387 | (struct smb_com_readx_req *)pSMB; |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1388 | pSMBW->ByteCount = 0; |
Steve French | bfa0d75 | 2005-08-31 21:50:37 -0700 | [diff] [blame] | 1389 | } |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1390 | |
| 1391 | iov[0].iov_base = (char *)pSMB; |
| 1392 | iov[0].iov_len = pSMB->hdr.smb_buf_length + 4; |
Steve French | a761ac5 | 2007-10-18 21:45:27 +0000 | [diff] [blame] | 1393 | rc = SendReceive2(xid, tcon->ses, iov, 1 /* num iovecs */, |
Steve French | 133672e | 2007-11-13 22:41:37 +0000 | [diff] [blame] | 1394 | &resp_buf_type, CIFS_STD_OP | CIFS_LOG_ERROR); |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 1395 | cifs_stats_inc(&tcon->num_reads); |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1396 | pSMBr = (READ_RSP *)iov[0].iov_base; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1397 | if (rc) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 1398 | cERROR(1, "Send error in read = %d", rc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1399 | } else { |
| 1400 | int data_length = le16_to_cpu(pSMBr->DataLengthHigh); |
| 1401 | data_length = data_length << 16; |
| 1402 | data_length += le16_to_cpu(pSMBr->DataLength); |
| 1403 | *nbytes = data_length; |
| 1404 | |
| 1405 | /*check that DataLength would not go beyond end of SMB */ |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1406 | if ((data_length > CIFSMaxBufSize) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1407 | || (data_length > count)) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 1408 | cFYI(1, "bad length %d for count %d", |
| 1409 | data_length, count); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1410 | rc = -EIO; |
| 1411 | *nbytes = 0; |
| 1412 | } else { |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1413 | pReadData = (char *) (&pSMBr->hdr.Protocol) + |
Steve French | 26f5736 | 2007-08-30 22:09:15 +0000 | [diff] [blame] | 1414 | le16_to_cpu(pSMBr->DataOffset); |
| 1415 | /* if (rc = copy_to_user(buf, pReadData, data_length)) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 1416 | cERROR(1, "Faulting on read rc = %d",rc); |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 1417 | rc = -EFAULT; |
Steve French | 26f5736 | 2007-08-30 22:09:15 +0000 | [diff] [blame] | 1418 | }*/ /* can not use copy_to_user when using page cache*/ |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 1419 | if (*buf) |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 1420 | memcpy(*buf, pReadData, data_length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1421 | } |
| 1422 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1423 | |
Steve French | 4b8f930 | 2006-02-26 16:41:18 +0000 | [diff] [blame] | 1424 | /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */ |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 1425 | if (*buf) { |
| 1426 | if (resp_buf_type == CIFS_SMALL_BUFFER) |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1427 | cifs_small_buf_release(iov[0].iov_base); |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 1428 | else if (resp_buf_type == CIFS_LARGE_BUFFER) |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1429 | cifs_buf_release(iov[0].iov_base); |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 1430 | } else if (resp_buf_type != CIFS_NO_BUFFER) { |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 1431 | /* return buffer to caller to free */ |
| 1432 | *buf = iov[0].iov_base; |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 1433 | if (resp_buf_type == CIFS_SMALL_BUFFER) |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1434 | *pbuf_type = CIFS_SMALL_BUFFER; |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 1435 | else if (resp_buf_type == CIFS_LARGE_BUFFER) |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1436 | *pbuf_type = CIFS_LARGE_BUFFER; |
Steve French | 6cec2ae | 2006-02-22 17:31:52 -0600 | [diff] [blame] | 1437 | } /* else no valid buffer on return - leave as null */ |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1438 | |
| 1439 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1440 | since file handle passed in no longer valid */ |
| 1441 | return rc; |
| 1442 | } |
| 1443 | |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1444 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1445 | int |
| 1446 | CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon, |
| 1447 | const int netfid, const unsigned int count, |
| 1448 | const __u64 offset, unsigned int *nbytes, const char *buf, |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 1449 | const char __user *ubuf, const int long_op) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1450 | { |
| 1451 | int rc = -EACCES; |
| 1452 | WRITE_REQ *pSMB = NULL; |
| 1453 | WRITE_RSP *pSMBr = NULL; |
Steve French | 1c95518 | 2005-08-30 20:58:07 -0700 | [diff] [blame] | 1454 | int bytes_returned, wct; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1455 | __u32 bytes_sent; |
| 1456 | __u16 byte_count; |
| 1457 | |
Steve French | a24e2d7 | 2010-04-03 17:20:21 +0000 | [diff] [blame] | 1458 | *nbytes = 0; |
| 1459 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 1460 | /* cFYI(1, "write at %lld %d bytes", offset, count);*/ |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 1461 | if (tcon->ses == NULL) |
Steve French | 1c95518 | 2005-08-30 20:58:07 -0700 | [diff] [blame] | 1462 | return -ECONNABORTED; |
| 1463 | |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 1464 | if (tcon->ses->capabilities & CAP_LARGE_FILES) |
Steve French | 1c95518 | 2005-08-30 20:58:07 -0700 | [diff] [blame] | 1465 | wct = 14; |
Steve French | 4c3130e | 2008-12-09 00:28:16 +0000 | [diff] [blame] | 1466 | else { |
Steve French | 1c95518 | 2005-08-30 20:58:07 -0700 | [diff] [blame] | 1467 | wct = 12; |
Steve French | 4c3130e | 2008-12-09 00:28:16 +0000 | [diff] [blame] | 1468 | if ((offset >> 32) > 0) { |
| 1469 | /* can not handle big offset for old srv */ |
| 1470 | return -EIO; |
| 1471 | } |
| 1472 | } |
Steve French | 1c95518 | 2005-08-30 20:58:07 -0700 | [diff] [blame] | 1473 | |
| 1474 | rc = smb_init(SMB_COM_WRITE_ANDX, wct, tcon, (void **) &pSMB, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1475 | (void **) &pSMBr); |
| 1476 | if (rc) |
| 1477 | return rc; |
| 1478 | /* tcon and ses pointer are checked in smb_init */ |
| 1479 | if (tcon->ses->server == NULL) |
| 1480 | return -ECONNABORTED; |
| 1481 | |
| 1482 | pSMB->AndXCommand = 0xFF; /* none */ |
| 1483 | pSMB->Fid = netfid; |
| 1484 | pSMB->OffsetLow = cpu_to_le32(offset & 0xFFFFFFFF); |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 1485 | if (wct == 14) |
Steve French | 1c95518 | 2005-08-30 20:58:07 -0700 | [diff] [blame] | 1486 | pSMB->OffsetHigh = cpu_to_le32(offset >> 32); |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 1487 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1488 | pSMB->Reserved = 0xFFFFFFFF; |
| 1489 | pSMB->WriteMode = 0; |
| 1490 | pSMB->Remaining = 0; |
| 1491 | |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 1492 | /* Can increase buffer size if buffer is big enough in some cases ie we |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1493 | can send more if LARGE_WRITE_X capability returned by the server and if |
| 1494 | our buffer is big enough or if we convert to iovecs on socket writes |
| 1495 | and eliminate the copy to the CIFS buffer */ |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 1496 | if (tcon->ses->capabilities & CAP_LARGE_WRITE_X) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1497 | bytes_sent = min_t(const unsigned int, CIFSMaxBufSize, count); |
| 1498 | } else { |
| 1499 | bytes_sent = (tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) |
| 1500 | & ~0xFF; |
| 1501 | } |
| 1502 | |
| 1503 | if (bytes_sent > count) |
| 1504 | bytes_sent = count; |
| 1505 | pSMB->DataOffset = |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 1506 | cpu_to_le16(offsetof(struct smb_com_write_req, Data) - 4); |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 1507 | if (buf) |
Steve French | 61e7480 | 2008-12-03 00:57:54 +0000 | [diff] [blame] | 1508 | memcpy(pSMB->Data, buf, bytes_sent); |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 1509 | else if (ubuf) { |
| 1510 | if (copy_from_user(pSMB->Data, ubuf, bytes_sent)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1511 | cifs_buf_release(pSMB); |
| 1512 | return -EFAULT; |
| 1513 | } |
Steve French | e30dcf3 | 2005-09-20 20:49:16 -0700 | [diff] [blame] | 1514 | } else if (count != 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1515 | /* No buffer */ |
| 1516 | cifs_buf_release(pSMB); |
| 1517 | return -EINVAL; |
Steve French | e30dcf3 | 2005-09-20 20:49:16 -0700 | [diff] [blame] | 1518 | } /* else setting file size with write of zero bytes */ |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 1519 | if (wct == 14) |
Steve French | e30dcf3 | 2005-09-20 20:49:16 -0700 | [diff] [blame] | 1520 | byte_count = bytes_sent + 1; /* pad */ |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 1521 | else /* wct == 12 */ |
Steve French | e30dcf3 | 2005-09-20 20:49:16 -0700 | [diff] [blame] | 1522 | byte_count = bytes_sent + 5; /* bigger pad, smaller smb hdr */ |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 1523 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1524 | pSMB->DataLengthLow = cpu_to_le16(bytes_sent & 0xFFFF); |
| 1525 | pSMB->DataLengthHigh = cpu_to_le16(bytes_sent >> 16); |
Steve French | e30dcf3 | 2005-09-20 20:49:16 -0700 | [diff] [blame] | 1526 | pSMB->hdr.smb_buf_length += byte_count; |
Steve French | 1c95518 | 2005-08-30 20:58:07 -0700 | [diff] [blame] | 1527 | |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 1528 | if (wct == 14) |
Steve French | 1c95518 | 2005-08-30 20:58:07 -0700 | [diff] [blame] | 1529 | pSMB->ByteCount = cpu_to_le16(byte_count); |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 1530 | else { /* old style write has byte count 4 bytes earlier |
| 1531 | so 4 bytes pad */ |
| 1532 | struct smb_com_writex_req *pSMBW = |
Steve French | 1c95518 | 2005-08-30 20:58:07 -0700 | [diff] [blame] | 1533 | (struct smb_com_writex_req *)pSMB; |
| 1534 | pSMBW->ByteCount = cpu_to_le16(byte_count); |
| 1535 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1536 | |
| 1537 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 1538 | (struct smb_hdr *) pSMBr, &bytes_returned, long_op); |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 1539 | cifs_stats_inc(&tcon->num_writes); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1540 | if (rc) { |
Steve French | f19159d | 2010-04-21 04:12:10 +0000 | [diff] [blame] | 1541 | cFYI(1, "Send error in write = %d", rc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1542 | } else { |
| 1543 | *nbytes = le16_to_cpu(pSMBr->CountHigh); |
| 1544 | *nbytes = (*nbytes) << 16; |
| 1545 | *nbytes += le16_to_cpu(pSMBr->Count); |
Suresh Jayaraman | 6513a81 | 2010-03-31 12:00:03 +0530 | [diff] [blame] | 1546 | |
| 1547 | /* |
| 1548 | * Mask off high 16 bits when bytes written as returned by the |
| 1549 | * server is greater than bytes requested by the client. Some |
| 1550 | * OS/2 servers are known to set incorrect CountHigh values. |
| 1551 | */ |
| 1552 | if (*nbytes > count) |
| 1553 | *nbytes &= 0xFFFF; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1554 | } |
| 1555 | |
| 1556 | cifs_buf_release(pSMB); |
| 1557 | |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 1558 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1559 | since file handle passed in no longer valid */ |
| 1560 | |
| 1561 | return rc; |
| 1562 | } |
| 1563 | |
Steve French | d6e04ae | 2005-06-13 13:24:43 -0500 | [diff] [blame] | 1564 | int |
| 1565 | CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1566 | const int netfid, const unsigned int count, |
Steve French | 3e84469 | 2005-10-03 13:37:24 -0700 | [diff] [blame] | 1567 | const __u64 offset, unsigned int *nbytes, struct kvec *iov, |
| 1568 | int n_vec, const int long_op) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1569 | { |
| 1570 | int rc = -EACCES; |
| 1571 | WRITE_REQ *pSMB = NULL; |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1572 | int wct; |
Steve French | d6e04ae | 2005-06-13 13:24:43 -0500 | [diff] [blame] | 1573 | int smb_hdr_len; |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1574 | int resp_buf_type = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1575 | |
Jeff Layton | fbec9ab | 2009-04-03 13:44:00 -0400 | [diff] [blame] | 1576 | *nbytes = 0; |
| 1577 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 1578 | cFYI(1, "write2 at %lld %d bytes", (long long)offset, count); |
Steve French | ff7feac | 2005-11-15 16:45:16 -0800 | [diff] [blame] | 1579 | |
Steve French | 4c3130e | 2008-12-09 00:28:16 +0000 | [diff] [blame] | 1580 | if (tcon->ses->capabilities & CAP_LARGE_FILES) { |
Steve French | 8cc64c6 | 2005-10-03 13:49:43 -0700 | [diff] [blame] | 1581 | wct = 14; |
Steve French | 4c3130e | 2008-12-09 00:28:16 +0000 | [diff] [blame] | 1582 | } else { |
Steve French | 8cc64c6 | 2005-10-03 13:49:43 -0700 | [diff] [blame] | 1583 | wct = 12; |
Steve French | 4c3130e | 2008-12-09 00:28:16 +0000 | [diff] [blame] | 1584 | if ((offset >> 32) > 0) { |
| 1585 | /* can not handle big offset for old srv */ |
| 1586 | return -EIO; |
| 1587 | } |
| 1588 | } |
Steve French | 8cc64c6 | 2005-10-03 13:49:43 -0700 | [diff] [blame] | 1589 | rc = small_smb_init(SMB_COM_WRITE_ANDX, wct, tcon, (void **) &pSMB); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1590 | if (rc) |
| 1591 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1592 | /* tcon and ses pointer are checked in smb_init */ |
| 1593 | if (tcon->ses->server == NULL) |
| 1594 | return -ECONNABORTED; |
| 1595 | |
Steve French | d6e04ae | 2005-06-13 13:24:43 -0500 | [diff] [blame] | 1596 | pSMB->AndXCommand = 0xFF; /* none */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1597 | pSMB->Fid = netfid; |
| 1598 | pSMB->OffsetLow = cpu_to_le32(offset & 0xFFFFFFFF); |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 1599 | if (wct == 14) |
Steve French | 8cc64c6 | 2005-10-03 13:49:43 -0700 | [diff] [blame] | 1600 | pSMB->OffsetHigh = cpu_to_le32(offset >> 32); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1601 | pSMB->Reserved = 0xFFFFFFFF; |
| 1602 | pSMB->WriteMode = 0; |
| 1603 | pSMB->Remaining = 0; |
Steve French | d6e04ae | 2005-06-13 13:24:43 -0500 | [diff] [blame] | 1604 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1605 | pSMB->DataOffset = |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 1606 | cpu_to_le16(offsetof(struct smb_com_write_req, Data) - 4); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1607 | |
Steve French | 3e84469 | 2005-10-03 13:37:24 -0700 | [diff] [blame] | 1608 | pSMB->DataLengthLow = cpu_to_le16(count & 0xFFFF); |
| 1609 | pSMB->DataLengthHigh = cpu_to_le16(count >> 16); |
Steve French | d6e04ae | 2005-06-13 13:24:43 -0500 | [diff] [blame] | 1610 | smb_hdr_len = pSMB->hdr.smb_buf_length + 1; /* hdr + 1 byte pad */ |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 1611 | if (wct == 14) |
Steve French | 8cc64c6 | 2005-10-03 13:49:43 -0700 | [diff] [blame] | 1612 | pSMB->hdr.smb_buf_length += count+1; |
| 1613 | else /* wct == 12 */ |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 1614 | pSMB->hdr.smb_buf_length += count+5; /* smb data starts later */ |
| 1615 | if (wct == 14) |
Steve French | 8cc64c6 | 2005-10-03 13:49:43 -0700 | [diff] [blame] | 1616 | pSMB->ByteCount = cpu_to_le16(count + 1); |
| 1617 | else /* wct == 12 */ /* bigger pad, smaller smb hdr, keep offset ok */ { |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 1618 | struct smb_com_writex_req *pSMBW = |
Steve French | 8cc64c6 | 2005-10-03 13:49:43 -0700 | [diff] [blame] | 1619 | (struct smb_com_writex_req *)pSMB; |
| 1620 | pSMBW->ByteCount = cpu_to_le16(count + 5); |
| 1621 | } |
Steve French | 3e84469 | 2005-10-03 13:37:24 -0700 | [diff] [blame] | 1622 | iov[0].iov_base = pSMB; |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 1623 | if (wct == 14) |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1624 | iov[0].iov_len = smb_hdr_len + 4; |
| 1625 | else /* wct == 12 pad bigger by four bytes */ |
| 1626 | iov[0].iov_len = smb_hdr_len + 8; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 1627 | |
Steve French | 3e84469 | 2005-10-03 13:37:24 -0700 | [diff] [blame] | 1628 | |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1629 | rc = SendReceive2(xid, tcon->ses, iov, n_vec + 1, &resp_buf_type, |
Steve French | 133672e | 2007-11-13 22:41:37 +0000 | [diff] [blame] | 1630 | long_op); |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 1631 | cifs_stats_inc(&tcon->num_writes); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1632 | if (rc) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 1633 | cFYI(1, "Send error Write2 = %d", rc); |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 1634 | } else if (resp_buf_type == 0) { |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1635 | /* presumably this can not happen, but best to be safe */ |
| 1636 | rc = -EIO; |
Steve French | d6e04ae | 2005-06-13 13:24:43 -0500 | [diff] [blame] | 1637 | } else { |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 1638 | WRITE_RSP *pSMBr = (WRITE_RSP *)iov[0].iov_base; |
Steve French | d6e04ae | 2005-06-13 13:24:43 -0500 | [diff] [blame] | 1639 | *nbytes = le16_to_cpu(pSMBr->CountHigh); |
| 1640 | *nbytes = (*nbytes) << 16; |
| 1641 | *nbytes += le16_to_cpu(pSMBr->Count); |
Suresh Jayaraman | 6513a81 | 2010-03-31 12:00:03 +0530 | [diff] [blame] | 1642 | |
| 1643 | /* |
| 1644 | * Mask off high 16 bits when bytes written as returned by the |
| 1645 | * server is greater than bytes requested by the client. OS/2 |
| 1646 | * servers are known to set incorrect CountHigh values. |
| 1647 | */ |
| 1648 | if (*nbytes > count) |
| 1649 | *nbytes &= 0xFFFF; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 1650 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1651 | |
Steve French | 4b8f930 | 2006-02-26 16:41:18 +0000 | [diff] [blame] | 1652 | /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */ |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 1653 | if (resp_buf_type == CIFS_SMALL_BUFFER) |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1654 | cifs_small_buf_release(iov[0].iov_base); |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 1655 | else if (resp_buf_type == CIFS_LARGE_BUFFER) |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1656 | cifs_buf_release(iov[0].iov_base); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1657 | |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 1658 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1659 | since file handle passed in no longer valid */ |
| 1660 | |
| 1661 | return rc; |
| 1662 | } |
Steve French | d6e04ae | 2005-06-13 13:24:43 -0500 | [diff] [blame] | 1663 | |
| 1664 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1665 | int |
| 1666 | CIFSSMBLock(const int xid, struct cifsTconInfo *tcon, |
| 1667 | const __u16 smb_file_id, const __u64 len, |
| 1668 | const __u64 offset, const __u32 numUnlock, |
Steve French | 4b18f2a | 2008-04-29 00:06:05 +0000 | [diff] [blame] | 1669 | const __u32 numLock, const __u8 lockType, const bool waitFlag) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1670 | { |
| 1671 | int rc = 0; |
| 1672 | LOCK_REQ *pSMB = NULL; |
Steve French | aaa9bbe | 2008-05-23 17:38:32 +0000 | [diff] [blame] | 1673 | /* LOCK_RSP *pSMBr = NULL; */ /* No response data other than rc to parse */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1674 | int bytes_returned; |
| 1675 | int timeout = 0; |
| 1676 | __u16 count; |
| 1677 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 1678 | cFYI(1, "CIFSSMBLock timeout %d numLock %d", (int)waitFlag, numLock); |
Steve French | 46810cb | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 1679 | rc = small_smb_init(SMB_COM_LOCKING_ANDX, 8, tcon, (void **) &pSMB); |
| 1680 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1681 | if (rc) |
| 1682 | return rc; |
| 1683 | |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 1684 | if (lockType == LOCKING_ANDX_OPLOCK_RELEASE) { |
Steve French | 133672e | 2007-11-13 22:41:37 +0000 | [diff] [blame] | 1685 | timeout = CIFS_ASYNC_OP; /* no response expected */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1686 | pSMB->Timeout = 0; |
Steve French | 4b18f2a | 2008-04-29 00:06:05 +0000 | [diff] [blame] | 1687 | } else if (waitFlag) { |
Steve French | 133672e | 2007-11-13 22:41:37 +0000 | [diff] [blame] | 1688 | timeout = CIFS_BLOCKING_OP; /* blocking operation, no timeout */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1689 | pSMB->Timeout = cpu_to_le32(-1);/* blocking - do not time out */ |
| 1690 | } else { |
| 1691 | pSMB->Timeout = 0; |
| 1692 | } |
| 1693 | |
| 1694 | pSMB->NumberOfLocks = cpu_to_le16(numLock); |
| 1695 | pSMB->NumberOfUnlocks = cpu_to_le16(numUnlock); |
| 1696 | pSMB->LockType = lockType; |
| 1697 | pSMB->AndXCommand = 0xFF; /* none */ |
| 1698 | pSMB->Fid = smb_file_id; /* netfid stays le */ |
| 1699 | |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 1700 | if ((numLock != 0) || (numUnlock != 0)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1701 | pSMB->Locks[0].Pid = cpu_to_le16(current->tgid); |
| 1702 | /* BB where to store pid high? */ |
| 1703 | pSMB->Locks[0].LengthLow = cpu_to_le32((u32)len); |
| 1704 | pSMB->Locks[0].LengthHigh = cpu_to_le32((u32)(len>>32)); |
| 1705 | pSMB->Locks[0].OffsetLow = cpu_to_le32((u32)offset); |
| 1706 | pSMB->Locks[0].OffsetHigh = cpu_to_le32((u32)(offset>>32)); |
| 1707 | count = sizeof(LOCKING_ANDX_RANGE); |
| 1708 | } else { |
| 1709 | /* oplock break */ |
| 1710 | count = 0; |
| 1711 | } |
| 1712 | pSMB->hdr.smb_buf_length += count; |
| 1713 | pSMB->ByteCount = cpu_to_le16(count); |
| 1714 | |
Jeremy Allison | 7ee1af7 | 2006-08-02 21:56:33 +0000 | [diff] [blame] | 1715 | if (waitFlag) { |
| 1716 | rc = SendReceiveBlockingLock(xid, tcon, (struct smb_hdr *) pSMB, |
Steve French | aaa9bbe | 2008-05-23 17:38:32 +0000 | [diff] [blame] | 1717 | (struct smb_hdr *) pSMB, &bytes_returned); |
Steve French | 133672e | 2007-11-13 22:41:37 +0000 | [diff] [blame] | 1718 | cifs_small_buf_release(pSMB); |
Jeremy Allison | 7ee1af7 | 2006-08-02 21:56:33 +0000 | [diff] [blame] | 1719 | } else { |
Steve French | 133672e | 2007-11-13 22:41:37 +0000 | [diff] [blame] | 1720 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *)pSMB, |
| 1721 | timeout); |
| 1722 | /* SMB buffer freed by function above */ |
Jeremy Allison | 7ee1af7 | 2006-08-02 21:56:33 +0000 | [diff] [blame] | 1723 | } |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 1724 | cifs_stats_inc(&tcon->num_locks); |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 1725 | if (rc) |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 1726 | cFYI(1, "Send error in Lock = %d", rc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1727 | |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 1728 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1729 | since file handle passed in no longer valid */ |
| 1730 | return rc; |
| 1731 | } |
| 1732 | |
| 1733 | int |
Steve French | 08547b0 | 2006-02-28 22:39:25 +0000 | [diff] [blame] | 1734 | CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon, |
| 1735 | const __u16 smb_file_id, const int get_flag, const __u64 len, |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 1736 | struct file_lock *pLockData, const __u16 lock_type, |
Steve French | 4b18f2a | 2008-04-29 00:06:05 +0000 | [diff] [blame] | 1737 | const bool waitFlag) |
Steve French | 08547b0 | 2006-02-28 22:39:25 +0000 | [diff] [blame] | 1738 | { |
| 1739 | struct smb_com_transaction2_sfi_req *pSMB = NULL; |
| 1740 | struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; |
Steve French | 08547b0 | 2006-02-28 22:39:25 +0000 | [diff] [blame] | 1741 | struct cifs_posix_lock *parm_data; |
| 1742 | int rc = 0; |
Steve French | 3a5ff61 | 2006-07-14 22:37:11 +0000 | [diff] [blame] | 1743 | int timeout = 0; |
Steve French | 08547b0 | 2006-02-28 22:39:25 +0000 | [diff] [blame] | 1744 | int bytes_returned = 0; |
Steve French | 133672e | 2007-11-13 22:41:37 +0000 | [diff] [blame] | 1745 | int resp_buf_type = 0; |
Steve French | 08547b0 | 2006-02-28 22:39:25 +0000 | [diff] [blame] | 1746 | __u16 params, param_offset, offset, byte_count, count; |
Steve French | 133672e | 2007-11-13 22:41:37 +0000 | [diff] [blame] | 1747 | struct kvec iov[1]; |
Steve French | 08547b0 | 2006-02-28 22:39:25 +0000 | [diff] [blame] | 1748 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 1749 | cFYI(1, "Posix Lock"); |
Steve French | fc94cdb | 2006-05-30 18:03:32 +0000 | [diff] [blame] | 1750 | |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 1751 | if (pLockData == NULL) |
Marcin Slusarz | ed5f037 | 2008-05-13 04:01:01 +0000 | [diff] [blame] | 1752 | return -EINVAL; |
Steve French | fc94cdb | 2006-05-30 18:03:32 +0000 | [diff] [blame] | 1753 | |
Steve French | 08547b0 | 2006-02-28 22:39:25 +0000 | [diff] [blame] | 1754 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
| 1755 | |
| 1756 | if (rc) |
| 1757 | return rc; |
| 1758 | |
| 1759 | pSMBr = (struct smb_com_transaction2_sfi_rsp *)pSMB; |
| 1760 | |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 1761 | params = 6; |
Steve French | 08547b0 | 2006-02-28 22:39:25 +0000 | [diff] [blame] | 1762 | pSMB->MaxSetupCount = 0; |
| 1763 | pSMB->Reserved = 0; |
| 1764 | pSMB->Flags = 0; |
Steve French | 08547b0 | 2006-02-28 22:39:25 +0000 | [diff] [blame] | 1765 | pSMB->Reserved2 = 0; |
| 1766 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; |
| 1767 | offset = param_offset + params; |
| 1768 | |
Steve French | 08547b0 | 2006-02-28 22:39:25 +0000 | [diff] [blame] | 1769 | count = sizeof(struct cifs_posix_lock); |
| 1770 | pSMB->MaxParameterCount = cpu_to_le16(2); |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 1771 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB from sess */ |
Steve French | 08547b0 | 2006-02-28 22:39:25 +0000 | [diff] [blame] | 1772 | pSMB->SetupCount = 1; |
| 1773 | pSMB->Reserved3 = 0; |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 1774 | if (get_flag) |
Steve French | 08547b0 | 2006-02-28 22:39:25 +0000 | [diff] [blame] | 1775 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FILE_INFORMATION); |
| 1776 | else |
| 1777 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); |
| 1778 | byte_count = 3 /* pad */ + params + count; |
| 1779 | pSMB->DataCount = cpu_to_le16(count); |
| 1780 | pSMB->ParameterCount = cpu_to_le16(params); |
| 1781 | pSMB->TotalDataCount = pSMB->DataCount; |
| 1782 | pSMB->TotalParameterCount = pSMB->ParameterCount; |
| 1783 | pSMB->ParameterOffset = cpu_to_le16(param_offset); |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 1784 | parm_data = (struct cifs_posix_lock *) |
Steve French | 08547b0 | 2006-02-28 22:39:25 +0000 | [diff] [blame] | 1785 | (((char *) &pSMB->hdr.Protocol) + offset); |
| 1786 | |
| 1787 | parm_data->lock_type = cpu_to_le16(lock_type); |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 1788 | if (waitFlag) { |
Steve French | 133672e | 2007-11-13 22:41:37 +0000 | [diff] [blame] | 1789 | timeout = CIFS_BLOCKING_OP; /* blocking operation, no timeout */ |
Steve French | cec6815a | 2006-05-30 18:07:17 +0000 | [diff] [blame] | 1790 | parm_data->lock_flags = cpu_to_le16(1); |
Steve French | 3a5ff61 | 2006-07-14 22:37:11 +0000 | [diff] [blame] | 1791 | pSMB->Timeout = cpu_to_le32(-1); |
| 1792 | } else |
| 1793 | pSMB->Timeout = 0; |
| 1794 | |
Steve French | 08547b0 | 2006-02-28 22:39:25 +0000 | [diff] [blame] | 1795 | parm_data->pid = cpu_to_le32(current->tgid); |
Steve French | fc94cdb | 2006-05-30 18:03:32 +0000 | [diff] [blame] | 1796 | parm_data->start = cpu_to_le64(pLockData->fl_start); |
Steve French | cec6815a | 2006-05-30 18:07:17 +0000 | [diff] [blame] | 1797 | parm_data->length = cpu_to_le64(len); /* normalize negative numbers */ |
Steve French | 08547b0 | 2006-02-28 22:39:25 +0000 | [diff] [blame] | 1798 | |
| 1799 | pSMB->DataOffset = cpu_to_le16(offset); |
Steve French | f26282c | 2006-03-01 09:17:37 +0000 | [diff] [blame] | 1800 | pSMB->Fid = smb_file_id; |
Steve French | 08547b0 | 2006-02-28 22:39:25 +0000 | [diff] [blame] | 1801 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_POSIX_LOCK); |
| 1802 | pSMB->Reserved4 = 0; |
| 1803 | pSMB->hdr.smb_buf_length += byte_count; |
| 1804 | pSMB->ByteCount = cpu_to_le16(byte_count); |
Jeremy Allison | 7ee1af7 | 2006-08-02 21:56:33 +0000 | [diff] [blame] | 1805 | if (waitFlag) { |
| 1806 | rc = SendReceiveBlockingLock(xid, tcon, (struct smb_hdr *) pSMB, |
| 1807 | (struct smb_hdr *) pSMBr, &bytes_returned); |
| 1808 | } else { |
Steve French | 133672e | 2007-11-13 22:41:37 +0000 | [diff] [blame] | 1809 | iov[0].iov_base = (char *)pSMB; |
| 1810 | iov[0].iov_len = pSMB->hdr.smb_buf_length + 4; |
| 1811 | rc = SendReceive2(xid, tcon->ses, iov, 1 /* num iovecs */, |
| 1812 | &resp_buf_type, timeout); |
| 1813 | pSMB = NULL; /* request buf already freed by SendReceive2. Do |
| 1814 | not try to free it twice below on exit */ |
| 1815 | pSMBr = (struct smb_com_transaction2_sfi_rsp *)iov[0].iov_base; |
Jeremy Allison | 7ee1af7 | 2006-08-02 21:56:33 +0000 | [diff] [blame] | 1816 | } |
| 1817 | |
Steve French | 08547b0 | 2006-02-28 22:39:25 +0000 | [diff] [blame] | 1818 | if (rc) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 1819 | cFYI(1, "Send error in Posix Lock = %d", rc); |
Steve French | fc94cdb | 2006-05-30 18:03:32 +0000 | [diff] [blame] | 1820 | } else if (get_flag) { |
| 1821 | /* lock structure can be returned on get */ |
| 1822 | __u16 data_offset; |
| 1823 | __u16 data_count; |
| 1824 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
Steve French | 08547b0 | 2006-02-28 22:39:25 +0000 | [diff] [blame] | 1825 | |
Steve French | fc94cdb | 2006-05-30 18:03:32 +0000 | [diff] [blame] | 1826 | if (rc || (pSMBr->ByteCount < sizeof(struct cifs_posix_lock))) { |
| 1827 | rc = -EIO; /* bad smb */ |
| 1828 | goto plk_err_exit; |
| 1829 | } |
Steve French | fc94cdb | 2006-05-30 18:03:32 +0000 | [diff] [blame] | 1830 | data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
| 1831 | data_count = le16_to_cpu(pSMBr->t2.DataCount); |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 1832 | if (data_count < sizeof(struct cifs_posix_lock)) { |
Steve French | fc94cdb | 2006-05-30 18:03:32 +0000 | [diff] [blame] | 1833 | rc = -EIO; |
| 1834 | goto plk_err_exit; |
| 1835 | } |
| 1836 | parm_data = (struct cifs_posix_lock *) |
| 1837 | ((char *)&pSMBr->hdr.Protocol + data_offset); |
Pavel Shilovsky | f05337c | 2010-04-05 09:59:14 +0400 | [diff] [blame] | 1838 | if (parm_data->lock_type == __constant_cpu_to_le16(CIFS_UNLCK)) |
Steve French | fc94cdb | 2006-05-30 18:03:32 +0000 | [diff] [blame] | 1839 | pLockData->fl_type = F_UNLCK; |
Pavel Shilovsky | f05337c | 2010-04-05 09:59:14 +0400 | [diff] [blame] | 1840 | else { |
| 1841 | if (parm_data->lock_type == |
| 1842 | __constant_cpu_to_le16(CIFS_RDLCK)) |
| 1843 | pLockData->fl_type = F_RDLCK; |
| 1844 | else if (parm_data->lock_type == |
| 1845 | __constant_cpu_to_le16(CIFS_WRLCK)) |
| 1846 | pLockData->fl_type = F_WRLCK; |
| 1847 | |
| 1848 | pLockData->fl_start = parm_data->start; |
| 1849 | pLockData->fl_end = parm_data->start + |
| 1850 | parm_data->length - 1; |
| 1851 | pLockData->fl_pid = parm_data->pid; |
| 1852 | } |
Steve French | fc94cdb | 2006-05-30 18:03:32 +0000 | [diff] [blame] | 1853 | } |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 1854 | |
Steve French | fc94cdb | 2006-05-30 18:03:32 +0000 | [diff] [blame] | 1855 | plk_err_exit: |
Steve French | 08547b0 | 2006-02-28 22:39:25 +0000 | [diff] [blame] | 1856 | if (pSMB) |
| 1857 | cifs_small_buf_release(pSMB); |
| 1858 | |
Steve French | 133672e | 2007-11-13 22:41:37 +0000 | [diff] [blame] | 1859 | if (resp_buf_type == CIFS_SMALL_BUFFER) |
| 1860 | cifs_small_buf_release(iov[0].iov_base); |
| 1861 | else if (resp_buf_type == CIFS_LARGE_BUFFER) |
| 1862 | cifs_buf_release(iov[0].iov_base); |
| 1863 | |
Steve French | 08547b0 | 2006-02-28 22:39:25 +0000 | [diff] [blame] | 1864 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
| 1865 | since file handle passed in no longer valid */ |
| 1866 | |
| 1867 | return rc; |
| 1868 | } |
| 1869 | |
| 1870 | |
| 1871 | int |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1872 | CIFSSMBClose(const int xid, struct cifsTconInfo *tcon, int smb_file_id) |
| 1873 | { |
| 1874 | int rc = 0; |
| 1875 | CLOSE_REQ *pSMB = NULL; |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 1876 | cFYI(1, "In CIFSSMBClose"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1877 | |
| 1878 | /* do not retry on dead session on close */ |
| 1879 | rc = small_smb_init(SMB_COM_CLOSE, 3, tcon, (void **) &pSMB); |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 1880 | if (rc == -EAGAIN) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1881 | return 0; |
| 1882 | if (rc) |
| 1883 | return rc; |
| 1884 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1885 | pSMB->FileID = (__u16) smb_file_id; |
Steve French | b815f1e5 | 2006-10-02 05:53:29 +0000 | [diff] [blame] | 1886 | pSMB->LastWriteTime = 0xFFFFFFFF; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1887 | pSMB->ByteCount = 0; |
Steve French | 133672e | 2007-11-13 22:41:37 +0000 | [diff] [blame] | 1888 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 1889 | cifs_stats_inc(&tcon->num_closes); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1890 | if (rc) { |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 1891 | if (rc != -EINTR) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1892 | /* EINTR is expected when user ctl-c to kill app */ |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 1893 | cERROR(1, "Send error in Close = %d", rc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1894 | } |
| 1895 | } |
| 1896 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1897 | /* Since session is dead, file will be closed on server already */ |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 1898 | if (rc == -EAGAIN) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1899 | rc = 0; |
| 1900 | |
| 1901 | return rc; |
| 1902 | } |
| 1903 | |
| 1904 | int |
Steve French | b298f22 | 2009-02-21 21:17:43 +0000 | [diff] [blame] | 1905 | CIFSSMBFlush(const int xid, struct cifsTconInfo *tcon, int smb_file_id) |
| 1906 | { |
| 1907 | int rc = 0; |
| 1908 | FLUSH_REQ *pSMB = NULL; |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 1909 | cFYI(1, "In CIFSSMBFlush"); |
Steve French | b298f22 | 2009-02-21 21:17:43 +0000 | [diff] [blame] | 1910 | |
| 1911 | rc = small_smb_init(SMB_COM_FLUSH, 1, tcon, (void **) &pSMB); |
| 1912 | if (rc) |
| 1913 | return rc; |
| 1914 | |
| 1915 | pSMB->FileID = (__u16) smb_file_id; |
| 1916 | pSMB->ByteCount = 0; |
| 1917 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); |
| 1918 | cifs_stats_inc(&tcon->num_flushes); |
| 1919 | if (rc) |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 1920 | cERROR(1, "Send error in Flush = %d", rc); |
Steve French | b298f22 | 2009-02-21 21:17:43 +0000 | [diff] [blame] | 1921 | |
| 1922 | return rc; |
| 1923 | } |
| 1924 | |
| 1925 | int |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1926 | CIFSSMBRename(const int xid, struct cifsTconInfo *tcon, |
| 1927 | const char *fromName, const char *toName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1928 | const struct nls_table *nls_codepage, int remap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1929 | { |
| 1930 | int rc = 0; |
| 1931 | RENAME_REQ *pSMB = NULL; |
| 1932 | RENAME_RSP *pSMBr = NULL; |
| 1933 | int bytes_returned; |
| 1934 | int name_len, name_len2; |
| 1935 | __u16 count; |
| 1936 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 1937 | cFYI(1, "In CIFSSMBRename"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1938 | renameRetry: |
| 1939 | rc = smb_init(SMB_COM_RENAME, 1, tcon, (void **) &pSMB, |
| 1940 | (void **) &pSMBr); |
| 1941 | if (rc) |
| 1942 | return rc; |
| 1943 | |
| 1944 | pSMB->BufferFormat = 0x04; |
| 1945 | pSMB->SearchAttributes = |
| 1946 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | |
| 1947 | ATTR_DIRECTORY); |
| 1948 | |
| 1949 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 1950 | name_len = |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 1951 | cifsConvertToUCS((__le16 *) pSMB->OldFileName, fromName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1952 | PATH_MAX, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1953 | name_len++; /* trailing null */ |
| 1954 | name_len *= 2; |
| 1955 | pSMB->OldFileName[name_len] = 0x04; /* pad */ |
| 1956 | /* protocol requires ASCII signature byte on Unicode string */ |
| 1957 | pSMB->OldFileName[name_len + 1] = 0x00; |
| 1958 | name_len2 = |
Steve French | 582d21e | 2008-05-13 04:54:12 +0000 | [diff] [blame] | 1959 | cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2], |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1960 | toName, PATH_MAX, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1961 | name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; |
| 1962 | name_len2 *= 2; /* convert to bytes */ |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 1963 | } else { /* BB improve the check for buffer overruns BB */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1964 | name_len = strnlen(fromName, PATH_MAX); |
| 1965 | name_len++; /* trailing null */ |
| 1966 | strncpy(pSMB->OldFileName, fromName, name_len); |
| 1967 | name_len2 = strnlen(toName, PATH_MAX); |
| 1968 | name_len2++; /* trailing null */ |
| 1969 | pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */ |
| 1970 | strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2); |
| 1971 | name_len2++; /* trailing null */ |
| 1972 | name_len2++; /* signature byte */ |
| 1973 | } |
| 1974 | |
| 1975 | count = 1 /* 1st signature byte */ + name_len + name_len2; |
| 1976 | pSMB->hdr.smb_buf_length += count; |
| 1977 | pSMB->ByteCount = cpu_to_le16(count); |
| 1978 | |
| 1979 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 1980 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 1981 | cifs_stats_inc(&tcon->num_renames); |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 1982 | if (rc) |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 1983 | cFYI(1, "Send error in rename = %d", rc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1984 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1985 | cifs_buf_release(pSMB); |
| 1986 | |
| 1987 | if (rc == -EAGAIN) |
| 1988 | goto renameRetry; |
| 1989 | |
| 1990 | return rc; |
| 1991 | } |
| 1992 | |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 1993 | int CIFSSMBRenameOpenFile(const int xid, struct cifsTconInfo *pTcon, |
Jeff Layton | 391e575 | 2008-09-24 11:32:59 -0400 | [diff] [blame] | 1994 | int netfid, const char *target_name, |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 1995 | const struct nls_table *nls_codepage, int remap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1996 | { |
| 1997 | struct smb_com_transaction2_sfi_req *pSMB = NULL; |
| 1998 | struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 1999 | struct set_file_rename *rename_info; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2000 | char *data_offset; |
| 2001 | char dummy_string[30]; |
| 2002 | int rc = 0; |
| 2003 | int bytes_returned = 0; |
| 2004 | int len_of_str; |
| 2005 | __u16 params, param_offset, offset, count, byte_count; |
| 2006 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 2007 | cFYI(1, "Rename to File by handle"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2008 | rc = smb_init(SMB_COM_TRANSACTION2, 15, pTcon, (void **) &pSMB, |
| 2009 | (void **) &pSMBr); |
| 2010 | if (rc) |
| 2011 | return rc; |
| 2012 | |
| 2013 | params = 6; |
| 2014 | pSMB->MaxSetupCount = 0; |
| 2015 | pSMB->Reserved = 0; |
| 2016 | pSMB->Flags = 0; |
| 2017 | pSMB->Timeout = 0; |
| 2018 | pSMB->Reserved2 = 0; |
| 2019 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; |
| 2020 | offset = param_offset + params; |
| 2021 | |
| 2022 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; |
| 2023 | rename_info = (struct set_file_rename *) data_offset; |
| 2024 | pSMB->MaxParameterCount = cpu_to_le16(2); |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 2025 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB from sess */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2026 | pSMB->SetupCount = 1; |
| 2027 | pSMB->Reserved3 = 0; |
| 2028 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); |
| 2029 | byte_count = 3 /* pad */ + params; |
| 2030 | pSMB->ParameterCount = cpu_to_le16(params); |
| 2031 | pSMB->TotalParameterCount = pSMB->ParameterCount; |
| 2032 | pSMB->ParameterOffset = cpu_to_le16(param_offset); |
| 2033 | pSMB->DataOffset = cpu_to_le16(offset); |
| 2034 | /* construct random name ".cifs_tmp<inodenum><mid>" */ |
| 2035 | rename_info->overwrite = cpu_to_le32(1); |
| 2036 | rename_info->root_fid = 0; |
| 2037 | /* unicode only call */ |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 2038 | if (target_name == NULL) { |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2039 | sprintf(dummy_string, "cifs%x", pSMB->hdr.Mid); |
| 2040 | len_of_str = cifsConvertToUCS((__le16 *)rename_info->target_name, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 2041 | dummy_string, 24, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2042 | } else { |
Steve French | b1a4569 | 2005-05-17 16:07:23 -0500 | [diff] [blame] | 2043 | len_of_str = cifsConvertToUCS((__le16 *)rename_info->target_name, |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2044 | target_name, PATH_MAX, nls_codepage, |
| 2045 | remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2046 | } |
| 2047 | rename_info->target_name_len = cpu_to_le32(2 * len_of_str); |
Jeff Layton | 391e575 | 2008-09-24 11:32:59 -0400 | [diff] [blame] | 2048 | count = 12 /* sizeof(struct set_file_rename) */ + (2 * len_of_str); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2049 | byte_count += count; |
| 2050 | pSMB->DataCount = cpu_to_le16(count); |
| 2051 | pSMB->TotalDataCount = pSMB->DataCount; |
| 2052 | pSMB->Fid = netfid; |
| 2053 | pSMB->InformationLevel = |
| 2054 | cpu_to_le16(SMB_SET_FILE_RENAME_INFORMATION); |
| 2055 | pSMB->Reserved4 = 0; |
| 2056 | pSMB->hdr.smb_buf_length += byte_count; |
| 2057 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 2058 | rc = SendReceive(xid, pTcon->ses, (struct smb_hdr *) pSMB, |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2059 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 2060 | cifs_stats_inc(&pTcon->num_t2renames); |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 2061 | if (rc) |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 2062 | cFYI(1, "Send error in Rename (by file handle) = %d", rc); |
Steve French | a5a2b48 | 2005-08-20 21:42:53 -0700 | [diff] [blame] | 2063 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2064 | cifs_buf_release(pSMB); |
| 2065 | |
| 2066 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
| 2067 | since file handle passed in no longer valid */ |
| 2068 | |
| 2069 | return rc; |
| 2070 | } |
| 2071 | |
| 2072 | int |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2073 | CIFSSMBCopy(const int xid, struct cifsTconInfo *tcon, const char *fromName, |
| 2074 | const __u16 target_tid, const char *toName, const int flags, |
| 2075 | const struct nls_table *nls_codepage, int remap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2076 | { |
| 2077 | int rc = 0; |
| 2078 | COPY_REQ *pSMB = NULL; |
| 2079 | COPY_RSP *pSMBr = NULL; |
| 2080 | int bytes_returned; |
| 2081 | int name_len, name_len2; |
| 2082 | __u16 count; |
| 2083 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 2084 | cFYI(1, "In CIFSSMBCopy"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2085 | copyRetry: |
| 2086 | rc = smb_init(SMB_COM_COPY, 1, tcon, (void **) &pSMB, |
| 2087 | (void **) &pSMBr); |
| 2088 | if (rc) |
| 2089 | return rc; |
| 2090 | |
| 2091 | pSMB->BufferFormat = 0x04; |
| 2092 | pSMB->Tid2 = target_tid; |
| 2093 | |
| 2094 | pSMB->Flags = cpu_to_le16(flags & COPY_TREE); |
| 2095 | |
| 2096 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2097 | name_len = cifsConvertToUCS((__le16 *) pSMB->OldFileName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 2098 | fromName, PATH_MAX, nls_codepage, |
| 2099 | remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2100 | name_len++; /* trailing null */ |
| 2101 | name_len *= 2; |
| 2102 | pSMB->OldFileName[name_len] = 0x04; /* pad */ |
| 2103 | /* protocol requires ASCII signature byte on Unicode string */ |
| 2104 | pSMB->OldFileName[name_len + 1] = 0x00; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2105 | name_len2 = |
| 2106 | cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2], |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 2107 | toName, PATH_MAX, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2108 | name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; |
| 2109 | name_len2 *= 2; /* convert to bytes */ |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2110 | } else { /* BB improve the check for buffer overruns BB */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2111 | name_len = strnlen(fromName, PATH_MAX); |
| 2112 | name_len++; /* trailing null */ |
| 2113 | strncpy(pSMB->OldFileName, fromName, name_len); |
| 2114 | name_len2 = strnlen(toName, PATH_MAX); |
| 2115 | name_len2++; /* trailing null */ |
| 2116 | pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */ |
| 2117 | strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2); |
| 2118 | name_len2++; /* trailing null */ |
| 2119 | name_len2++; /* signature byte */ |
| 2120 | } |
| 2121 | |
| 2122 | count = 1 /* 1st signature byte */ + name_len + name_len2; |
| 2123 | pSMB->hdr.smb_buf_length += count; |
| 2124 | pSMB->ByteCount = cpu_to_le16(count); |
| 2125 | |
| 2126 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 2127 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 2128 | if (rc) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 2129 | cFYI(1, "Send error in copy = %d with %d files copied", |
| 2130 | rc, le16_to_cpu(pSMBr->CopyCount)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2131 | } |
Steve French | 0d817bc | 2008-05-22 02:02:03 +0000 | [diff] [blame] | 2132 | cifs_buf_release(pSMB); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2133 | |
| 2134 | if (rc == -EAGAIN) |
| 2135 | goto copyRetry; |
| 2136 | |
| 2137 | return rc; |
| 2138 | } |
| 2139 | |
| 2140 | int |
| 2141 | CIFSUnixCreateSymLink(const int xid, struct cifsTconInfo *tcon, |
| 2142 | const char *fromName, const char *toName, |
| 2143 | const struct nls_table *nls_codepage) |
| 2144 | { |
| 2145 | TRANSACTION2_SPI_REQ *pSMB = NULL; |
| 2146 | TRANSACTION2_SPI_RSP *pSMBr = NULL; |
| 2147 | char *data_offset; |
| 2148 | int name_len; |
| 2149 | int name_len_target; |
| 2150 | int rc = 0; |
| 2151 | int bytes_returned = 0; |
| 2152 | __u16 params, param_offset, offset, byte_count; |
| 2153 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 2154 | cFYI(1, "In Symlink Unix style"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2155 | createSymLinkRetry: |
| 2156 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 2157 | (void **) &pSMBr); |
| 2158 | if (rc) |
| 2159 | return rc; |
| 2160 | |
| 2161 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 2162 | name_len = |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 2163 | cifs_strtoUCS((__le16 *) pSMB->FileName, fromName, PATH_MAX |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2164 | /* find define for this maxpathcomponent */ |
| 2165 | , nls_codepage); |
| 2166 | name_len++; /* trailing null */ |
| 2167 | name_len *= 2; |
| 2168 | |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2169 | } else { /* BB improve the check for buffer overruns BB */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2170 | name_len = strnlen(fromName, PATH_MAX); |
| 2171 | name_len++; /* trailing null */ |
| 2172 | strncpy(pSMB->FileName, fromName, name_len); |
| 2173 | } |
| 2174 | params = 6 + name_len; |
| 2175 | pSMB->MaxSetupCount = 0; |
| 2176 | pSMB->Reserved = 0; |
| 2177 | pSMB->Flags = 0; |
| 2178 | pSMB->Timeout = 0; |
| 2179 | pSMB->Reserved2 = 0; |
| 2180 | param_offset = offsetof(struct smb_com_transaction2_spi_req, |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2181 | InformationLevel) - 4; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2182 | offset = param_offset + params; |
| 2183 | |
| 2184 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; |
| 2185 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 2186 | name_len_target = |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 2187 | cifs_strtoUCS((__le16 *) data_offset, toName, PATH_MAX |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2188 | /* find define for this maxpathcomponent */ |
| 2189 | , nls_codepage); |
| 2190 | name_len_target++; /* trailing null */ |
| 2191 | name_len_target *= 2; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2192 | } else { /* BB improve the check for buffer overruns BB */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2193 | name_len_target = strnlen(toName, PATH_MAX); |
| 2194 | name_len_target++; /* trailing null */ |
| 2195 | strncpy(data_offset, toName, name_len_target); |
| 2196 | } |
| 2197 | |
| 2198 | pSMB->MaxParameterCount = cpu_to_le16(2); |
| 2199 | /* BB find exact max on data count below from sess */ |
| 2200 | pSMB->MaxDataCount = cpu_to_le16(1000); |
| 2201 | pSMB->SetupCount = 1; |
| 2202 | pSMB->Reserved3 = 0; |
| 2203 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); |
| 2204 | byte_count = 3 /* pad */ + params + name_len_target; |
| 2205 | pSMB->DataCount = cpu_to_le16(name_len_target); |
| 2206 | pSMB->ParameterCount = cpu_to_le16(params); |
| 2207 | pSMB->TotalDataCount = pSMB->DataCount; |
| 2208 | pSMB->TotalParameterCount = pSMB->ParameterCount; |
| 2209 | pSMB->ParameterOffset = cpu_to_le16(param_offset); |
| 2210 | pSMB->DataOffset = cpu_to_le16(offset); |
| 2211 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_LINK); |
| 2212 | pSMB->Reserved4 = 0; |
| 2213 | pSMB->hdr.smb_buf_length += byte_count; |
| 2214 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 2215 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 2216 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 2217 | cifs_stats_inc(&tcon->num_symlinks); |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 2218 | if (rc) |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 2219 | cFYI(1, "Send error in SetPathInfo create symlink = %d", rc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2220 | |
Steve French | 0d817bc | 2008-05-22 02:02:03 +0000 | [diff] [blame] | 2221 | cifs_buf_release(pSMB); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2222 | |
| 2223 | if (rc == -EAGAIN) |
| 2224 | goto createSymLinkRetry; |
| 2225 | |
| 2226 | return rc; |
| 2227 | } |
| 2228 | |
| 2229 | int |
| 2230 | CIFSUnixCreateHardLink(const int xid, struct cifsTconInfo *tcon, |
| 2231 | const char *fromName, const char *toName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 2232 | const struct nls_table *nls_codepage, int remap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2233 | { |
| 2234 | TRANSACTION2_SPI_REQ *pSMB = NULL; |
| 2235 | TRANSACTION2_SPI_RSP *pSMBr = NULL; |
| 2236 | char *data_offset; |
| 2237 | int name_len; |
| 2238 | int name_len_target; |
| 2239 | int rc = 0; |
| 2240 | int bytes_returned = 0; |
| 2241 | __u16 params, param_offset, offset, byte_count; |
| 2242 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 2243 | cFYI(1, "In Create Hard link Unix style"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2244 | createHardLinkRetry: |
| 2245 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 2246 | (void **) &pSMBr); |
| 2247 | if (rc) |
| 2248 | return rc; |
| 2249 | |
| 2250 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
Steve French | b1a4569 | 2005-05-17 16:07:23 -0500 | [diff] [blame] | 2251 | name_len = cifsConvertToUCS((__le16 *) pSMB->FileName, toName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 2252 | PATH_MAX, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2253 | name_len++; /* trailing null */ |
| 2254 | name_len *= 2; |
| 2255 | |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2256 | } else { /* BB improve the check for buffer overruns BB */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2257 | name_len = strnlen(toName, PATH_MAX); |
| 2258 | name_len++; /* trailing null */ |
| 2259 | strncpy(pSMB->FileName, toName, name_len); |
| 2260 | } |
| 2261 | params = 6 + name_len; |
| 2262 | pSMB->MaxSetupCount = 0; |
| 2263 | pSMB->Reserved = 0; |
| 2264 | pSMB->Flags = 0; |
| 2265 | pSMB->Timeout = 0; |
| 2266 | pSMB->Reserved2 = 0; |
| 2267 | param_offset = offsetof(struct smb_com_transaction2_spi_req, |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2268 | InformationLevel) - 4; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2269 | offset = param_offset + params; |
| 2270 | |
| 2271 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; |
| 2272 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 2273 | name_len_target = |
Steve French | b1a4569 | 2005-05-17 16:07:23 -0500 | [diff] [blame] | 2274 | cifsConvertToUCS((__le16 *) data_offset, fromName, PATH_MAX, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 2275 | nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2276 | name_len_target++; /* trailing null */ |
| 2277 | name_len_target *= 2; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2278 | } else { /* BB improve the check for buffer overruns BB */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2279 | name_len_target = strnlen(fromName, PATH_MAX); |
| 2280 | name_len_target++; /* trailing null */ |
| 2281 | strncpy(data_offset, fromName, name_len_target); |
| 2282 | } |
| 2283 | |
| 2284 | pSMB->MaxParameterCount = cpu_to_le16(2); |
| 2285 | /* BB find exact max on data count below from sess*/ |
| 2286 | pSMB->MaxDataCount = cpu_to_le16(1000); |
| 2287 | pSMB->SetupCount = 1; |
| 2288 | pSMB->Reserved3 = 0; |
| 2289 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); |
| 2290 | byte_count = 3 /* pad */ + params + name_len_target; |
| 2291 | pSMB->ParameterCount = cpu_to_le16(params); |
| 2292 | pSMB->TotalParameterCount = pSMB->ParameterCount; |
| 2293 | pSMB->DataCount = cpu_to_le16(name_len_target); |
| 2294 | pSMB->TotalDataCount = pSMB->DataCount; |
| 2295 | pSMB->ParameterOffset = cpu_to_le16(param_offset); |
| 2296 | pSMB->DataOffset = cpu_to_le16(offset); |
| 2297 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_HLINK); |
| 2298 | pSMB->Reserved4 = 0; |
| 2299 | pSMB->hdr.smb_buf_length += byte_count; |
| 2300 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 2301 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 2302 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 2303 | cifs_stats_inc(&tcon->num_hardlinks); |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 2304 | if (rc) |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 2305 | cFYI(1, "Send error in SetPathInfo (hard link) = %d", rc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2306 | |
| 2307 | cifs_buf_release(pSMB); |
| 2308 | if (rc == -EAGAIN) |
| 2309 | goto createHardLinkRetry; |
| 2310 | |
| 2311 | return rc; |
| 2312 | } |
| 2313 | |
| 2314 | int |
| 2315 | CIFSCreateHardLink(const int xid, struct cifsTconInfo *tcon, |
| 2316 | const char *fromName, const char *toName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 2317 | const struct nls_table *nls_codepage, int remap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2318 | { |
| 2319 | int rc = 0; |
| 2320 | NT_RENAME_REQ *pSMB = NULL; |
| 2321 | RENAME_RSP *pSMBr = NULL; |
| 2322 | int bytes_returned; |
| 2323 | int name_len, name_len2; |
| 2324 | __u16 count; |
| 2325 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 2326 | cFYI(1, "In CIFSCreateHardLink"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2327 | winCreateHardLinkRetry: |
| 2328 | |
| 2329 | rc = smb_init(SMB_COM_NT_RENAME, 4, tcon, (void **) &pSMB, |
| 2330 | (void **) &pSMBr); |
| 2331 | if (rc) |
| 2332 | return rc; |
| 2333 | |
| 2334 | pSMB->SearchAttributes = |
| 2335 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | |
| 2336 | ATTR_DIRECTORY); |
| 2337 | pSMB->Flags = cpu_to_le16(CREATE_HARD_LINK); |
| 2338 | pSMB->ClusterCount = 0; |
| 2339 | |
| 2340 | pSMB->BufferFormat = 0x04; |
| 2341 | |
| 2342 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 2343 | name_len = |
Steve French | b1a4569 | 2005-05-17 16:07:23 -0500 | [diff] [blame] | 2344 | cifsConvertToUCS((__le16 *) pSMB->OldFileName, fromName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 2345 | PATH_MAX, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2346 | name_len++; /* trailing null */ |
| 2347 | name_len *= 2; |
Jeff Layton | fcc7c09 | 2009-02-28 12:59:03 -0500 | [diff] [blame] | 2348 | |
| 2349 | /* protocol specifies ASCII buffer format (0x04) for unicode */ |
| 2350 | pSMB->OldFileName[name_len] = 0x04; |
| 2351 | pSMB->OldFileName[name_len + 1] = 0x00; /* pad */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2352 | name_len2 = |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2353 | cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2], |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 2354 | toName, PATH_MAX, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2355 | name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; |
| 2356 | name_len2 *= 2; /* convert to bytes */ |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2357 | } else { /* BB improve the check for buffer overruns BB */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2358 | name_len = strnlen(fromName, PATH_MAX); |
| 2359 | name_len++; /* trailing null */ |
| 2360 | strncpy(pSMB->OldFileName, fromName, name_len); |
| 2361 | name_len2 = strnlen(toName, PATH_MAX); |
| 2362 | name_len2++; /* trailing null */ |
| 2363 | pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */ |
| 2364 | strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2); |
| 2365 | name_len2++; /* trailing null */ |
| 2366 | name_len2++; /* signature byte */ |
| 2367 | } |
| 2368 | |
| 2369 | count = 1 /* string type byte */ + name_len + name_len2; |
| 2370 | pSMB->hdr.smb_buf_length += count; |
| 2371 | pSMB->ByteCount = cpu_to_le16(count); |
| 2372 | |
| 2373 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 2374 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 2375 | cifs_stats_inc(&tcon->num_hardlinks); |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 2376 | if (rc) |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 2377 | cFYI(1, "Send error in hard link (NT rename) = %d", rc); |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 2378 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2379 | cifs_buf_release(pSMB); |
| 2380 | if (rc == -EAGAIN) |
| 2381 | goto winCreateHardLinkRetry; |
| 2382 | |
| 2383 | return rc; |
| 2384 | } |
| 2385 | |
| 2386 | int |
| 2387 | CIFSSMBUnixQuerySymLink(const int xid, struct cifsTconInfo *tcon, |
Jeff Layton | 460b969 | 2009-04-30 07:17:56 -0400 | [diff] [blame] | 2388 | const unsigned char *searchName, char **symlinkinfo, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2389 | const struct nls_table *nls_codepage) |
| 2390 | { |
| 2391 | /* SMB_QUERY_FILE_UNIX_LINK */ |
| 2392 | TRANSACTION2_QPI_REQ *pSMB = NULL; |
| 2393 | TRANSACTION2_QPI_RSP *pSMBr = NULL; |
| 2394 | int rc = 0; |
| 2395 | int bytes_returned; |
| 2396 | int name_len; |
| 2397 | __u16 params, byte_count; |
Jeff Layton | 460b969 | 2009-04-30 07:17:56 -0400 | [diff] [blame] | 2398 | char *data_start; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2399 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 2400 | cFYI(1, "In QPathSymLinkInfo (Unix) for path %s", searchName); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2401 | |
| 2402 | querySymLinkRetry: |
| 2403 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 2404 | (void **) &pSMBr); |
| 2405 | if (rc) |
| 2406 | return rc; |
| 2407 | |
| 2408 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 2409 | name_len = |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2410 | cifs_strtoUCS((__le16 *) pSMB->FileName, searchName, |
| 2411 | PATH_MAX, nls_codepage); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2412 | name_len++; /* trailing null */ |
| 2413 | name_len *= 2; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2414 | } else { /* BB improve the check for buffer overruns BB */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2415 | name_len = strnlen(searchName, PATH_MAX); |
| 2416 | name_len++; /* trailing null */ |
| 2417 | strncpy(pSMB->FileName, searchName, name_len); |
| 2418 | } |
| 2419 | |
| 2420 | params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ; |
| 2421 | pSMB->TotalDataCount = 0; |
| 2422 | pSMB->MaxParameterCount = cpu_to_le16(2); |
Jeff Layton | 46a7574 | 2009-05-24 18:45:17 -0400 | [diff] [blame] | 2423 | pSMB->MaxDataCount = cpu_to_le16(CIFSMaxBufSize); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2424 | pSMB->MaxSetupCount = 0; |
| 2425 | pSMB->Reserved = 0; |
| 2426 | pSMB->Flags = 0; |
| 2427 | pSMB->Timeout = 0; |
| 2428 | pSMB->Reserved2 = 0; |
| 2429 | pSMB->ParameterOffset = cpu_to_le16(offsetof( |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2430 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2431 | pSMB->DataCount = 0; |
| 2432 | pSMB->DataOffset = 0; |
| 2433 | pSMB->SetupCount = 1; |
| 2434 | pSMB->Reserved3 = 0; |
| 2435 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); |
| 2436 | byte_count = params + 1 /* pad */ ; |
| 2437 | pSMB->TotalParameterCount = cpu_to_le16(params); |
| 2438 | pSMB->ParameterCount = pSMB->TotalParameterCount; |
| 2439 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_UNIX_LINK); |
| 2440 | pSMB->Reserved4 = 0; |
| 2441 | pSMB->hdr.smb_buf_length += byte_count; |
| 2442 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 2443 | |
| 2444 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 2445 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 2446 | if (rc) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 2447 | cFYI(1, "Send error in QuerySymLinkInfo = %d", rc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2448 | } else { |
| 2449 | /* decode response */ |
| 2450 | |
| 2451 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2452 | /* BB also check enough total bytes returned */ |
Jeff Layton | 460b969 | 2009-04-30 07:17:56 -0400 | [diff] [blame] | 2453 | if (rc || (pSMBr->ByteCount < 2)) |
| 2454 | rc = -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2455 | else { |
Steve French | 0e0d2cf | 2009-05-01 05:27:32 +0000 | [diff] [blame] | 2456 | bool is_unicode; |
Jeff Layton | 460b969 | 2009-04-30 07:17:56 -0400 | [diff] [blame] | 2457 | u16 count = le16_to_cpu(pSMBr->t2.DataCount); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2458 | |
Jeff Layton | 460b969 | 2009-04-30 07:17:56 -0400 | [diff] [blame] | 2459 | data_start = ((char *) &pSMBr->hdr.Protocol) + |
| 2460 | le16_to_cpu(pSMBr->t2.DataOffset); |
| 2461 | |
Steve French | 0e0d2cf | 2009-05-01 05:27:32 +0000 | [diff] [blame] | 2462 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) |
| 2463 | is_unicode = true; |
| 2464 | else |
| 2465 | is_unicode = false; |
| 2466 | |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 2467 | /* BB FIXME investigate remapping reserved chars here */ |
Steve French | d185cda | 2009-04-30 17:45:10 +0000 | [diff] [blame] | 2468 | *symlinkinfo = cifs_strndup_from_ucs(data_start, count, |
Steve French | 0e0d2cf | 2009-05-01 05:27:32 +0000 | [diff] [blame] | 2469 | is_unicode, nls_codepage); |
Jeff Layton | 8b6427a | 2009-05-19 09:57:03 -0400 | [diff] [blame] | 2470 | if (!*symlinkinfo) |
Jeff Layton | 460b969 | 2009-04-30 07:17:56 -0400 | [diff] [blame] | 2471 | rc = -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2472 | } |
| 2473 | } |
| 2474 | cifs_buf_release(pSMB); |
| 2475 | if (rc == -EAGAIN) |
| 2476 | goto querySymLinkRetry; |
| 2477 | return rc; |
| 2478 | } |
| 2479 | |
Parag Warudkar | c948977 | 2007-10-23 18:09:48 +0000 | [diff] [blame] | 2480 | #ifdef CONFIG_CIFS_EXPERIMENTAL |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 2481 | /* Initialize NT TRANSACT SMB into small smb request buffer. |
| 2482 | This assumes that all NT TRANSACTS that we init here have |
| 2483 | total parm and data under about 400 bytes (to fit in small cifs |
| 2484 | buffer size), which is the case so far, it easily fits. NB: |
| 2485 | Setup words themselves and ByteCount |
| 2486 | MaxSetupCount (size of returned setup area) and |
| 2487 | MaxParameterCount (returned parms size) must be set by caller */ |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2488 | static int |
Steve French | b9c7a2b | 2007-10-26 23:40:20 +0000 | [diff] [blame] | 2489 | smb_init_nttransact(const __u16 sub_command, const int setup_count, |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 2490 | const int parm_len, struct cifsTconInfo *tcon, |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2491 | void **ret_buf) |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 2492 | { |
| 2493 | int rc; |
| 2494 | __u32 temp_offset; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2495 | struct smb_com_ntransact_req *pSMB; |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 2496 | |
| 2497 | rc = small_smb_init(SMB_COM_NT_TRANSACT, 19 + setup_count, tcon, |
| 2498 | (void **)&pSMB); |
| 2499 | if (rc) |
| 2500 | return rc; |
| 2501 | *ret_buf = (void *)pSMB; |
| 2502 | pSMB->Reserved = 0; |
| 2503 | pSMB->TotalParameterCount = cpu_to_le32(parm_len); |
| 2504 | pSMB->TotalDataCount = 0; |
| 2505 | pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf - |
| 2506 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); |
| 2507 | pSMB->ParameterCount = pSMB->TotalParameterCount; |
| 2508 | pSMB->DataCount = pSMB->TotalDataCount; |
| 2509 | temp_offset = offsetof(struct smb_com_ntransact_req, Parms) + |
| 2510 | (setup_count * 2) - 4 /* for rfc1001 length itself */; |
| 2511 | pSMB->ParameterOffset = cpu_to_le32(temp_offset); |
| 2512 | pSMB->DataOffset = cpu_to_le32(temp_offset + parm_len); |
| 2513 | pSMB->SetupCount = setup_count; /* no need to le convert byte fields */ |
| 2514 | pSMB->SubCommand = cpu_to_le16(sub_command); |
| 2515 | return 0; |
| 2516 | } |
| 2517 | |
| 2518 | static int |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2519 | validate_ntransact(char *buf, char **ppparm, char **ppdata, |
Steve French | b9c7a2b | 2007-10-26 23:40:20 +0000 | [diff] [blame] | 2520 | __u32 *pparmlen, __u32 *pdatalen) |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 2521 | { |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2522 | char *end_of_smb; |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 2523 | __u32 data_count, data_offset, parm_count, parm_offset; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2524 | struct smb_com_ntransact_rsp *pSMBr; |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 2525 | |
Steve French | 630f3f0c | 2007-10-25 21:17:17 +0000 | [diff] [blame] | 2526 | *pdatalen = 0; |
| 2527 | *pparmlen = 0; |
| 2528 | |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 2529 | if (buf == NULL) |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 2530 | return -EINVAL; |
| 2531 | |
| 2532 | pSMBr = (struct smb_com_ntransact_rsp *)buf; |
| 2533 | |
| 2534 | /* ByteCount was converted from little endian in SendReceive */ |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2535 | end_of_smb = 2 /* sizeof byte count */ + pSMBr->ByteCount + |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 2536 | (char *)&pSMBr->ByteCount; |
| 2537 | |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 2538 | data_offset = le32_to_cpu(pSMBr->DataOffset); |
| 2539 | data_count = le32_to_cpu(pSMBr->DataCount); |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2540 | parm_offset = le32_to_cpu(pSMBr->ParameterOffset); |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 2541 | parm_count = le32_to_cpu(pSMBr->ParameterCount); |
| 2542 | |
| 2543 | *ppparm = (char *)&pSMBr->hdr.Protocol + parm_offset; |
| 2544 | *ppdata = (char *)&pSMBr->hdr.Protocol + data_offset; |
| 2545 | |
| 2546 | /* should we also check that parm and data areas do not overlap? */ |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 2547 | if (*ppparm > end_of_smb) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 2548 | cFYI(1, "parms start after end of smb"); |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 2549 | return -EINVAL; |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 2550 | } else if (parm_count + *ppparm > end_of_smb) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 2551 | cFYI(1, "parm end after end of smb"); |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 2552 | return -EINVAL; |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 2553 | } else if (*ppdata > end_of_smb) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 2554 | cFYI(1, "data starts after end of smb"); |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 2555 | return -EINVAL; |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 2556 | } else if (data_count + *ppdata > end_of_smb) { |
Steve French | f19159d | 2010-04-21 04:12:10 +0000 | [diff] [blame] | 2557 | cFYI(1, "data %p + count %d (%p) past smb end %p start %p", |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2558 | *ppdata, data_count, (data_count + *ppdata), |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 2559 | end_of_smb, pSMBr); |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 2560 | return -EINVAL; |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 2561 | } else if (parm_count + data_count > pSMBr->ByteCount) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 2562 | cFYI(1, "parm count and data count larger than SMB"); |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 2563 | return -EINVAL; |
| 2564 | } |
Steve French | 630f3f0c | 2007-10-25 21:17:17 +0000 | [diff] [blame] | 2565 | *pdatalen = data_count; |
| 2566 | *pparmlen = parm_count; |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 2567 | return 0; |
| 2568 | } |
| 2569 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2570 | int |
| 2571 | CIFSSMBQueryReparseLinkInfo(const int xid, struct cifsTconInfo *tcon, |
| 2572 | const unsigned char *searchName, |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2573 | char *symlinkinfo, const int buflen, __u16 fid, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2574 | const struct nls_table *nls_codepage) |
| 2575 | { |
| 2576 | int rc = 0; |
| 2577 | int bytes_returned; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2578 | struct smb_com_transaction_ioctl_req *pSMB; |
| 2579 | struct smb_com_transaction_ioctl_rsp *pSMBr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2580 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 2581 | cFYI(1, "In Windows reparse style QueryLink for path %s", searchName); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2582 | rc = smb_init(SMB_COM_NT_TRANSACT, 23, tcon, (void **) &pSMB, |
| 2583 | (void **) &pSMBr); |
| 2584 | if (rc) |
| 2585 | return rc; |
| 2586 | |
| 2587 | pSMB->TotalParameterCount = 0 ; |
| 2588 | pSMB->TotalDataCount = 0; |
| 2589 | pSMB->MaxParameterCount = cpu_to_le32(2); |
| 2590 | /* BB find exact data count max from sess structure BB */ |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 2591 | pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf - |
| 2592 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2593 | pSMB->MaxSetupCount = 4; |
| 2594 | pSMB->Reserved = 0; |
| 2595 | pSMB->ParameterOffset = 0; |
| 2596 | pSMB->DataCount = 0; |
| 2597 | pSMB->DataOffset = 0; |
| 2598 | pSMB->SetupCount = 4; |
| 2599 | pSMB->SubCommand = cpu_to_le16(NT_TRANSACT_IOCTL); |
| 2600 | pSMB->ParameterCount = pSMB->TotalParameterCount; |
| 2601 | pSMB->FunctionCode = cpu_to_le32(FSCTL_GET_REPARSE_POINT); |
| 2602 | pSMB->IsFsctl = 1; /* FSCTL */ |
| 2603 | pSMB->IsRootFlag = 0; |
| 2604 | pSMB->Fid = fid; /* file handle always le */ |
| 2605 | pSMB->ByteCount = 0; |
| 2606 | |
| 2607 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 2608 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 2609 | if (rc) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 2610 | cFYI(1, "Send error in QueryReparseLinkInfo = %d", rc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2611 | } else { /* decode response */ |
| 2612 | __u32 data_offset = le32_to_cpu(pSMBr->DataOffset); |
| 2613 | __u32 data_count = le32_to_cpu(pSMBr->DataCount); |
Steve French | afe48c3 | 2009-05-02 05:25:46 +0000 | [diff] [blame] | 2614 | if ((pSMBr->ByteCount < 2) || (data_offset > 512)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2615 | /* BB also check enough total bytes returned */ |
| 2616 | rc = -EIO; /* bad smb */ |
Steve French | afe48c3 | 2009-05-02 05:25:46 +0000 | [diff] [blame] | 2617 | goto qreparse_out; |
| 2618 | } |
| 2619 | if (data_count && (data_count < 2048)) { |
| 2620 | char *end_of_smb = 2 /* sizeof byte count */ + |
| 2621 | pSMBr->ByteCount + (char *)&pSMBr->ByteCount; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2622 | |
Steve French | afe48c3 | 2009-05-02 05:25:46 +0000 | [diff] [blame] | 2623 | struct reparse_data *reparse_buf = |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2624 | (struct reparse_data *) |
| 2625 | ((char *)&pSMBr->hdr.Protocol |
| 2626 | + data_offset); |
Steve French | afe48c3 | 2009-05-02 05:25:46 +0000 | [diff] [blame] | 2627 | if ((char *)reparse_buf >= end_of_smb) { |
| 2628 | rc = -EIO; |
| 2629 | goto qreparse_out; |
| 2630 | } |
| 2631 | if ((reparse_buf->LinkNamesBuf + |
| 2632 | reparse_buf->TargetNameOffset + |
| 2633 | reparse_buf->TargetNameLen) > end_of_smb) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 2634 | cFYI(1, "reparse buf beyond SMB"); |
Steve French | afe48c3 | 2009-05-02 05:25:46 +0000 | [diff] [blame] | 2635 | rc = -EIO; |
| 2636 | goto qreparse_out; |
| 2637 | } |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2638 | |
Steve French | afe48c3 | 2009-05-02 05:25:46 +0000 | [diff] [blame] | 2639 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 2640 | cifs_from_ucs2(symlinkinfo, (__le16 *) |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2641 | (reparse_buf->LinkNamesBuf + |
| 2642 | reparse_buf->TargetNameOffset), |
Steve French | afe48c3 | 2009-05-02 05:25:46 +0000 | [diff] [blame] | 2643 | buflen, |
| 2644 | reparse_buf->TargetNameLen, |
| 2645 | nls_codepage, 0); |
| 2646 | } else { /* ASCII names */ |
| 2647 | strncpy(symlinkinfo, |
| 2648 | reparse_buf->LinkNamesBuf + |
| 2649 | reparse_buf->TargetNameOffset, |
| 2650 | min_t(const int, buflen, |
| 2651 | reparse_buf->TargetNameLen)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2652 | } |
Steve French | afe48c3 | 2009-05-02 05:25:46 +0000 | [diff] [blame] | 2653 | } else { |
| 2654 | rc = -EIO; |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 2655 | cFYI(1, "Invalid return data count on " |
| 2656 | "get reparse info ioctl"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2657 | } |
Steve French | afe48c3 | 2009-05-02 05:25:46 +0000 | [diff] [blame] | 2658 | symlinkinfo[buflen] = 0; /* just in case so the caller |
| 2659 | does not go off the end of the buffer */ |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 2660 | cFYI(1, "readlink result - %s", symlinkinfo); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2661 | } |
Steve French | 989c7e5 | 2009-05-02 05:32:20 +0000 | [diff] [blame] | 2662 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2663 | qreparse_out: |
Steve French | 4a6d87f | 2005-08-13 08:15:54 -0700 | [diff] [blame] | 2664 | cifs_buf_release(pSMB); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2665 | |
| 2666 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
| 2667 | since file handle passed in no longer valid */ |
| 2668 | |
| 2669 | return rc; |
| 2670 | } |
Steve French | afe48c3 | 2009-05-02 05:25:46 +0000 | [diff] [blame] | 2671 | #endif /* CIFS_EXPERIMENTAL */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2672 | |
| 2673 | #ifdef CONFIG_CIFS_POSIX |
| 2674 | |
| 2675 | /*Convert an Access Control Entry from wire format to local POSIX xattr format*/ |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2676 | static void cifs_convert_ace(posix_acl_xattr_entry *ace, |
| 2677 | struct cifs_posix_ace *cifs_ace) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2678 | { |
| 2679 | /* u8 cifs fields do not need le conversion */ |
Steve French | ff7feac | 2005-11-15 16:45:16 -0800 | [diff] [blame] | 2680 | ace->e_perm = cpu_to_le16(cifs_ace->cifs_e_perm); |
| 2681 | ace->e_tag = cpu_to_le16(cifs_ace->cifs_e_tag); |
| 2682 | ace->e_id = cpu_to_le32(le64_to_cpu(cifs_ace->cifs_uid)); |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 2683 | /* cFYI(1, "perm %d tag %d id %d",ace->e_perm,ace->e_tag,ace->e_id); */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2684 | |
| 2685 | return; |
| 2686 | } |
| 2687 | |
| 2688 | /* Convert ACL from CIFS POSIX wire format to local Linux POSIX ACL xattr */ |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2689 | static int cifs_copy_posix_acl(char *trgt, char *src, const int buflen, |
| 2690 | const int acl_type, const int size_of_data_area) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2691 | { |
| 2692 | int size = 0; |
| 2693 | int i; |
| 2694 | __u16 count; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2695 | struct cifs_posix_ace *pACE; |
| 2696 | struct cifs_posix_acl *cifs_acl = (struct cifs_posix_acl *)src; |
| 2697 | posix_acl_xattr_header *local_acl = (posix_acl_xattr_header *)trgt; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2698 | |
| 2699 | if (le16_to_cpu(cifs_acl->version) != CIFS_ACL_VERSION) |
| 2700 | return -EOPNOTSUPP; |
| 2701 | |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 2702 | if (acl_type & ACL_TYPE_ACCESS) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2703 | count = le16_to_cpu(cifs_acl->access_entry_count); |
| 2704 | pACE = &cifs_acl->ace_array[0]; |
| 2705 | size = sizeof(struct cifs_posix_acl); |
| 2706 | size += sizeof(struct cifs_posix_ace) * count; |
| 2707 | /* check if we would go beyond end of SMB */ |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 2708 | if (size_of_data_area < size) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 2709 | cFYI(1, "bad CIFS POSIX ACL size %d vs. %d", |
| 2710 | size_of_data_area, size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2711 | return -EINVAL; |
| 2712 | } |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 2713 | } else if (acl_type & ACL_TYPE_DEFAULT) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2714 | count = le16_to_cpu(cifs_acl->access_entry_count); |
| 2715 | size = sizeof(struct cifs_posix_acl); |
| 2716 | size += sizeof(struct cifs_posix_ace) * count; |
| 2717 | /* skip past access ACEs to get to default ACEs */ |
| 2718 | pACE = &cifs_acl->ace_array[count]; |
| 2719 | count = le16_to_cpu(cifs_acl->default_entry_count); |
| 2720 | size += sizeof(struct cifs_posix_ace) * count; |
| 2721 | /* check if we would go beyond end of SMB */ |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 2722 | if (size_of_data_area < size) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2723 | return -EINVAL; |
| 2724 | } else { |
| 2725 | /* illegal type */ |
| 2726 | return -EINVAL; |
| 2727 | } |
| 2728 | |
| 2729 | size = posix_acl_xattr_size(count); |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 2730 | if ((buflen == 0) || (local_acl == NULL)) { |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2731 | /* used to query ACL EA size */ |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 2732 | } else if (size > buflen) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2733 | return -ERANGE; |
| 2734 | } else /* buffer big enough */ { |
Steve French | ff7feac | 2005-11-15 16:45:16 -0800 | [diff] [blame] | 2735 | local_acl->a_version = cpu_to_le32(POSIX_ACL_XATTR_VERSION); |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2736 | for (i = 0; i < count ; i++) { |
| 2737 | cifs_convert_ace(&local_acl->a_entries[i], pACE); |
| 2738 | pACE++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2739 | } |
| 2740 | } |
| 2741 | return size; |
| 2742 | } |
| 2743 | |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2744 | static __u16 convert_ace_to_cifs_ace(struct cifs_posix_ace *cifs_ace, |
| 2745 | const posix_acl_xattr_entry *local_ace) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2746 | { |
| 2747 | __u16 rc = 0; /* 0 = ACL converted ok */ |
| 2748 | |
Steve French | ff7feac | 2005-11-15 16:45:16 -0800 | [diff] [blame] | 2749 | cifs_ace->cifs_e_perm = le16_to_cpu(local_ace->e_perm); |
| 2750 | cifs_ace->cifs_e_tag = le16_to_cpu(local_ace->e_tag); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2751 | /* BB is there a better way to handle the large uid? */ |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 2752 | if (local_ace->e_id == cpu_to_le32(-1)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2753 | /* Probably no need to le convert -1 on any arch but can not hurt */ |
| 2754 | cifs_ace->cifs_uid = cpu_to_le64(-1); |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2755 | } else |
Steve French | ff7feac | 2005-11-15 16:45:16 -0800 | [diff] [blame] | 2756 | cifs_ace->cifs_uid = cpu_to_le64(le32_to_cpu(local_ace->e_id)); |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 2757 | /*cFYI(1, "perm %d tag %d id %d",ace->e_perm,ace->e_tag,ace->e_id);*/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2758 | return rc; |
| 2759 | } |
| 2760 | |
| 2761 | /* Convert ACL from local Linux POSIX xattr to CIFS POSIX ACL wire format */ |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2762 | static __u16 ACL_to_cifs_posix(char *parm_data, const char *pACL, |
| 2763 | const int buflen, const int acl_type) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2764 | { |
| 2765 | __u16 rc = 0; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2766 | struct cifs_posix_acl *cifs_acl = (struct cifs_posix_acl *)parm_data; |
| 2767 | posix_acl_xattr_header *local_acl = (posix_acl_xattr_header *)pACL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2768 | int count; |
| 2769 | int i; |
| 2770 | |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 2771 | if ((buflen == 0) || (pACL == NULL) || (cifs_acl == NULL)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2772 | return 0; |
| 2773 | |
| 2774 | count = posix_acl_xattr_count((size_t)buflen); |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 2775 | cFYI(1, "setting acl with %d entries from buf of length %d and " |
Steve French | 63135e0 | 2007-07-17 17:34:02 +0000 | [diff] [blame] | 2776 | "version of %d", |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 2777 | count, buflen, le32_to_cpu(local_acl->a_version)); |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 2778 | if (le32_to_cpu(local_acl->a_version) != 2) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 2779 | cFYI(1, "unknown POSIX ACL version %d", |
| 2780 | le32_to_cpu(local_acl->a_version)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2781 | return 0; |
| 2782 | } |
| 2783 | cifs_acl->version = cpu_to_le16(1); |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 2784 | if (acl_type == ACL_TYPE_ACCESS) |
Steve French | ff7feac | 2005-11-15 16:45:16 -0800 | [diff] [blame] | 2785 | cifs_acl->access_entry_count = cpu_to_le16(count); |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 2786 | else if (acl_type == ACL_TYPE_DEFAULT) |
Steve French | ff7feac | 2005-11-15 16:45:16 -0800 | [diff] [blame] | 2787 | cifs_acl->default_entry_count = cpu_to_le16(count); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2788 | else { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 2789 | cFYI(1, "unknown ACL type %d", acl_type); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2790 | return 0; |
| 2791 | } |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2792 | for (i = 0; i < count; i++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2793 | rc = convert_ace_to_cifs_ace(&cifs_acl->ace_array[i], |
| 2794 | &local_acl->a_entries[i]); |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 2795 | if (rc != 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2796 | /* ACE not converted */ |
| 2797 | break; |
| 2798 | } |
| 2799 | } |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 2800 | if (rc == 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2801 | rc = (__u16)(count * sizeof(struct cifs_posix_ace)); |
| 2802 | rc += sizeof(struct cifs_posix_acl); |
| 2803 | /* BB add check to make sure ACL does not overflow SMB */ |
| 2804 | } |
| 2805 | return rc; |
| 2806 | } |
| 2807 | |
| 2808 | int |
| 2809 | CIFSSMBGetPosixACL(const int xid, struct cifsTconInfo *tcon, |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2810 | const unsigned char *searchName, |
| 2811 | char *acl_inf, const int buflen, const int acl_type, |
| 2812 | const struct nls_table *nls_codepage, int remap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2813 | { |
| 2814 | /* SMB_QUERY_POSIX_ACL */ |
| 2815 | TRANSACTION2_QPI_REQ *pSMB = NULL; |
| 2816 | TRANSACTION2_QPI_RSP *pSMBr = NULL; |
| 2817 | int rc = 0; |
| 2818 | int bytes_returned; |
| 2819 | int name_len; |
| 2820 | __u16 params, byte_count; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2821 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 2822 | cFYI(1, "In GetPosixACL (Unix) for path %s", searchName); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2823 | |
| 2824 | queryAclRetry: |
| 2825 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 2826 | (void **) &pSMBr); |
| 2827 | if (rc) |
| 2828 | return rc; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2829 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2830 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 2831 | name_len = |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2832 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 2833 | PATH_MAX, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2834 | name_len++; /* trailing null */ |
| 2835 | name_len *= 2; |
| 2836 | pSMB->FileName[name_len] = 0; |
| 2837 | pSMB->FileName[name_len+1] = 0; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2838 | } else { /* BB improve the check for buffer overruns BB */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2839 | name_len = strnlen(searchName, PATH_MAX); |
| 2840 | name_len++; /* trailing null */ |
| 2841 | strncpy(pSMB->FileName, searchName, name_len); |
| 2842 | } |
| 2843 | |
| 2844 | params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ; |
| 2845 | pSMB->TotalDataCount = 0; |
| 2846 | pSMB->MaxParameterCount = cpu_to_le16(2); |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2847 | /* BB find exact max data count below from sess structure BB */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2848 | pSMB->MaxDataCount = cpu_to_le16(4000); |
| 2849 | pSMB->MaxSetupCount = 0; |
| 2850 | pSMB->Reserved = 0; |
| 2851 | pSMB->Flags = 0; |
| 2852 | pSMB->Timeout = 0; |
| 2853 | pSMB->Reserved2 = 0; |
| 2854 | pSMB->ParameterOffset = cpu_to_le16( |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2855 | offsetof(struct smb_com_transaction2_qpi_req, |
| 2856 | InformationLevel) - 4); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2857 | pSMB->DataCount = 0; |
| 2858 | pSMB->DataOffset = 0; |
| 2859 | pSMB->SetupCount = 1; |
| 2860 | pSMB->Reserved3 = 0; |
| 2861 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); |
| 2862 | byte_count = params + 1 /* pad */ ; |
| 2863 | pSMB->TotalParameterCount = cpu_to_le16(params); |
| 2864 | pSMB->ParameterCount = pSMB->TotalParameterCount; |
| 2865 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_POSIX_ACL); |
| 2866 | pSMB->Reserved4 = 0; |
| 2867 | pSMB->hdr.smb_buf_length += byte_count; |
| 2868 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 2869 | |
| 2870 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 2871 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 2872 | cifs_stats_inc(&tcon->num_acl_get); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2873 | if (rc) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 2874 | cFYI(1, "Send error in Query POSIX ACL = %d", rc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2875 | } else { |
| 2876 | /* decode response */ |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2877 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2878 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
| 2879 | if (rc || (pSMBr->ByteCount < 2)) |
| 2880 | /* BB also check enough total bytes returned */ |
| 2881 | rc = -EIO; /* bad smb */ |
| 2882 | else { |
| 2883 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
| 2884 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); |
| 2885 | rc = cifs_copy_posix_acl(acl_inf, |
| 2886 | (char *)&pSMBr->hdr.Protocol+data_offset, |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2887 | buflen, acl_type, count); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2888 | } |
| 2889 | } |
| 2890 | cifs_buf_release(pSMB); |
| 2891 | if (rc == -EAGAIN) |
| 2892 | goto queryAclRetry; |
| 2893 | return rc; |
| 2894 | } |
| 2895 | |
| 2896 | int |
| 2897 | CIFSSMBSetPosixACL(const int xid, struct cifsTconInfo *tcon, |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2898 | const unsigned char *fileName, |
| 2899 | const char *local_acl, const int buflen, |
| 2900 | const int acl_type, |
| 2901 | const struct nls_table *nls_codepage, int remap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2902 | { |
| 2903 | struct smb_com_transaction2_spi_req *pSMB = NULL; |
| 2904 | struct smb_com_transaction2_spi_rsp *pSMBr = NULL; |
| 2905 | char *parm_data; |
| 2906 | int name_len; |
| 2907 | int rc = 0; |
| 2908 | int bytes_returned = 0; |
| 2909 | __u16 params, byte_count, data_count, param_offset, offset; |
| 2910 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 2911 | cFYI(1, "In SetPosixACL (Unix) for path %s", fileName); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2912 | setAclRetry: |
| 2913 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2914 | (void **) &pSMBr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2915 | if (rc) |
| 2916 | return rc; |
| 2917 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 2918 | name_len = |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2919 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 2920 | PATH_MAX, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2921 | name_len++; /* trailing null */ |
| 2922 | name_len *= 2; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2923 | } else { /* BB improve the check for buffer overruns BB */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2924 | name_len = strnlen(fileName, PATH_MAX); |
| 2925 | name_len++; /* trailing null */ |
| 2926 | strncpy(pSMB->FileName, fileName, name_len); |
| 2927 | } |
| 2928 | params = 6 + name_len; |
| 2929 | pSMB->MaxParameterCount = cpu_to_le16(2); |
Steve French | 582d21e | 2008-05-13 04:54:12 +0000 | [diff] [blame] | 2930 | /* BB find max SMB size from sess */ |
| 2931 | pSMB->MaxDataCount = cpu_to_le16(1000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2932 | pSMB->MaxSetupCount = 0; |
| 2933 | pSMB->Reserved = 0; |
| 2934 | pSMB->Flags = 0; |
| 2935 | pSMB->Timeout = 0; |
| 2936 | pSMB->Reserved2 = 0; |
| 2937 | param_offset = offsetof(struct smb_com_transaction2_spi_req, |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2938 | InformationLevel) - 4; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2939 | offset = param_offset + params; |
| 2940 | parm_data = ((char *) &pSMB->hdr.Protocol) + offset; |
| 2941 | pSMB->ParameterOffset = cpu_to_le16(param_offset); |
| 2942 | |
| 2943 | /* convert to on the wire format for POSIX ACL */ |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2944 | data_count = ACL_to_cifs_posix(parm_data, local_acl, buflen, acl_type); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2945 | |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 2946 | if (data_count == 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2947 | rc = -EOPNOTSUPP; |
| 2948 | goto setACLerrorExit; |
| 2949 | } |
| 2950 | pSMB->DataOffset = cpu_to_le16(offset); |
| 2951 | pSMB->SetupCount = 1; |
| 2952 | pSMB->Reserved3 = 0; |
| 2953 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); |
| 2954 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_POSIX_ACL); |
| 2955 | byte_count = 3 /* pad */ + params + data_count; |
| 2956 | pSMB->DataCount = cpu_to_le16(data_count); |
| 2957 | pSMB->TotalDataCount = pSMB->DataCount; |
| 2958 | pSMB->ParameterCount = cpu_to_le16(params); |
| 2959 | pSMB->TotalParameterCount = pSMB->ParameterCount; |
| 2960 | pSMB->Reserved4 = 0; |
| 2961 | pSMB->hdr.smb_buf_length += byte_count; |
| 2962 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 2963 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2964 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 2965 | if (rc) |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 2966 | cFYI(1, "Set POSIX ACL returned %d", rc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2967 | |
| 2968 | setACLerrorExit: |
| 2969 | cifs_buf_release(pSMB); |
| 2970 | if (rc == -EAGAIN) |
| 2971 | goto setAclRetry; |
| 2972 | return rc; |
| 2973 | } |
| 2974 | |
Steve French | f654bac | 2005-04-28 22:41:04 -0700 | [diff] [blame] | 2975 | /* BB fix tabs in this function FIXME BB */ |
| 2976 | int |
| 2977 | CIFSGetExtAttr(const int xid, struct cifsTconInfo *tcon, |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 2978 | const int netfid, __u64 *pExtAttrBits, __u64 *pMask) |
Steve French | f654bac | 2005-04-28 22:41:04 -0700 | [diff] [blame] | 2979 | { |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 2980 | int rc = 0; |
| 2981 | struct smb_t2_qfi_req *pSMB = NULL; |
| 2982 | struct smb_t2_qfi_rsp *pSMBr = NULL; |
| 2983 | int bytes_returned; |
| 2984 | __u16 params, byte_count; |
Steve French | f654bac | 2005-04-28 22:41:04 -0700 | [diff] [blame] | 2985 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 2986 | cFYI(1, "In GetExtAttr"); |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 2987 | if (tcon == NULL) |
| 2988 | return -ENODEV; |
Steve French | f654bac | 2005-04-28 22:41:04 -0700 | [diff] [blame] | 2989 | |
| 2990 | GetExtAttrRetry: |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 2991 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 2992 | (void **) &pSMBr); |
| 2993 | if (rc) |
| 2994 | return rc; |
Steve French | f654bac | 2005-04-28 22:41:04 -0700 | [diff] [blame] | 2995 | |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 2996 | params = 2 /* level */ + 2 /* fid */; |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 2997 | pSMB->t2.TotalDataCount = 0; |
| 2998 | pSMB->t2.MaxParameterCount = cpu_to_le16(4); |
| 2999 | /* BB find exact max data count below from sess structure BB */ |
| 3000 | pSMB->t2.MaxDataCount = cpu_to_le16(4000); |
| 3001 | pSMB->t2.MaxSetupCount = 0; |
| 3002 | pSMB->t2.Reserved = 0; |
| 3003 | pSMB->t2.Flags = 0; |
| 3004 | pSMB->t2.Timeout = 0; |
| 3005 | pSMB->t2.Reserved2 = 0; |
| 3006 | pSMB->t2.ParameterOffset = cpu_to_le16(offsetof(struct smb_t2_qfi_req, |
| 3007 | Fid) - 4); |
| 3008 | pSMB->t2.DataCount = 0; |
| 3009 | pSMB->t2.DataOffset = 0; |
| 3010 | pSMB->t2.SetupCount = 1; |
| 3011 | pSMB->t2.Reserved3 = 0; |
| 3012 | pSMB->t2.SubCommand = cpu_to_le16(TRANS2_QUERY_FILE_INFORMATION); |
| 3013 | byte_count = params + 1 /* pad */ ; |
| 3014 | pSMB->t2.TotalParameterCount = cpu_to_le16(params); |
| 3015 | pSMB->t2.ParameterCount = pSMB->t2.TotalParameterCount; |
| 3016 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_ATTR_FLAGS); |
| 3017 | pSMB->Pad = 0; |
Steve French | f654bac | 2005-04-28 22:41:04 -0700 | [diff] [blame] | 3018 | pSMB->Fid = netfid; |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 3019 | pSMB->hdr.smb_buf_length += byte_count; |
| 3020 | pSMB->t2.ByteCount = cpu_to_le16(byte_count); |
Steve French | f654bac | 2005-04-28 22:41:04 -0700 | [diff] [blame] | 3021 | |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 3022 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 3023 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 3024 | if (rc) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 3025 | cFYI(1, "error %d in GetExtAttr", rc); |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 3026 | } else { |
| 3027 | /* decode response */ |
| 3028 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
| 3029 | if (rc || (pSMBr->ByteCount < 2)) |
| 3030 | /* BB also check enough total bytes returned */ |
| 3031 | /* If rc should we check for EOPNOSUPP and |
| 3032 | disable the srvino flag? or in caller? */ |
| 3033 | rc = -EIO; /* bad smb */ |
| 3034 | else { |
| 3035 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
| 3036 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); |
| 3037 | struct file_chattr_info *pfinfo; |
| 3038 | /* BB Do we need a cast or hash here ? */ |
| 3039 | if (count != 16) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 3040 | cFYI(1, "Illegal size ret in GetExtAttr"); |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 3041 | rc = -EIO; |
| 3042 | goto GetExtAttrOut; |
| 3043 | } |
| 3044 | pfinfo = (struct file_chattr_info *) |
| 3045 | (data_offset + (char *) &pSMBr->hdr.Protocol); |
| 3046 | *pExtAttrBits = le64_to_cpu(pfinfo->mode); |
Steve French | f654bac | 2005-04-28 22:41:04 -0700 | [diff] [blame] | 3047 | *pMask = le64_to_cpu(pfinfo->mask); |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 3048 | } |
| 3049 | } |
Steve French | f654bac | 2005-04-28 22:41:04 -0700 | [diff] [blame] | 3050 | GetExtAttrOut: |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 3051 | cifs_buf_release(pSMB); |
| 3052 | if (rc == -EAGAIN) |
| 3053 | goto GetExtAttrRetry; |
| 3054 | return rc; |
Steve French | f654bac | 2005-04-28 22:41:04 -0700 | [diff] [blame] | 3055 | } |
| 3056 | |
Steve French | f654bac | 2005-04-28 22:41:04 -0700 | [diff] [blame] | 3057 | #endif /* CONFIG_POSIX */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3058 | |
Steve French | 297647c | 2007-10-12 04:11:59 +0000 | [diff] [blame] | 3059 | #ifdef CONFIG_CIFS_EXPERIMENTAL |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 3060 | /* Get Security Descriptor (by handle) from remote server for a file or dir */ |
| 3061 | int |
| 3062 | CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid, |
Steve French | 630f3f0c | 2007-10-25 21:17:17 +0000 | [diff] [blame] | 3063 | struct cifs_ntsd **acl_inf, __u32 *pbuflen) |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 3064 | { |
| 3065 | int rc = 0; |
| 3066 | int buf_type = 0; |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 3067 | QUERY_SEC_DESC_REQ *pSMB; |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 3068 | struct kvec iov[1]; |
| 3069 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 3070 | cFYI(1, "GetCifsACL"); |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 3071 | |
Steve French | 630f3f0c | 2007-10-25 21:17:17 +0000 | [diff] [blame] | 3072 | *pbuflen = 0; |
| 3073 | *acl_inf = NULL; |
| 3074 | |
Steve French | b9c7a2b | 2007-10-26 23:40:20 +0000 | [diff] [blame] | 3075 | rc = smb_init_nttransact(NT_TRANSACT_QUERY_SECURITY_DESC, 0, |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 3076 | 8 /* parm len */, tcon, (void **) &pSMB); |
| 3077 | if (rc) |
| 3078 | return rc; |
| 3079 | |
| 3080 | pSMB->MaxParameterCount = cpu_to_le32(4); |
| 3081 | /* BB TEST with big acls that might need to be e.g. larger than 16K */ |
| 3082 | pSMB->MaxSetupCount = 0; |
| 3083 | pSMB->Fid = fid; /* file handle always le */ |
| 3084 | pSMB->AclFlags = cpu_to_le32(CIFS_ACL_OWNER | CIFS_ACL_GROUP | |
| 3085 | CIFS_ACL_DACL); |
| 3086 | pSMB->ByteCount = cpu_to_le16(11); /* 3 bytes pad + 8 bytes parm */ |
| 3087 | pSMB->hdr.smb_buf_length += 11; |
| 3088 | iov[0].iov_base = (char *)pSMB; |
| 3089 | iov[0].iov_len = pSMB->hdr.smb_buf_length + 4; |
| 3090 | |
Steve French | a761ac5 | 2007-10-18 21:45:27 +0000 | [diff] [blame] | 3091 | rc = SendReceive2(xid, tcon->ses, iov, 1 /* num iovec */, &buf_type, |
Steve French | 133672e | 2007-11-13 22:41:37 +0000 | [diff] [blame] | 3092 | CIFS_STD_OP); |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 3093 | cifs_stats_inc(&tcon->num_acl_get); |
| 3094 | if (rc) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 3095 | cFYI(1, "Send error in QuerySecDesc = %d", rc); |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 3096 | } else { /* decode response */ |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 3097 | __le32 *parm; |
Steve French | 630f3f0c | 2007-10-25 21:17:17 +0000 | [diff] [blame] | 3098 | __u32 parm_len; |
| 3099 | __u32 acl_len; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 3100 | struct smb_com_ntransact_rsp *pSMBr; |
Steve French | 630f3f0c | 2007-10-25 21:17:17 +0000 | [diff] [blame] | 3101 | char *pdata; |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 3102 | |
| 3103 | /* validate_nttransact */ |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 3104 | rc = validate_ntransact(iov[0].iov_base, (char **)&parm, |
Steve French | 630f3f0c | 2007-10-25 21:17:17 +0000 | [diff] [blame] | 3105 | &pdata, &parm_len, pbuflen); |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 3106 | if (rc) |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 3107 | goto qsec_out; |
| 3108 | pSMBr = (struct smb_com_ntransact_rsp *)iov[0].iov_base; |
| 3109 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 3110 | cFYI(1, "smb %p parm %p data %p", pSMBr, parm, *acl_inf); |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 3111 | |
| 3112 | if (le32_to_cpu(pSMBr->ParameterCount) != 4) { |
| 3113 | rc = -EIO; /* bad smb */ |
Steve French | 630f3f0c | 2007-10-25 21:17:17 +0000 | [diff] [blame] | 3114 | *pbuflen = 0; |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 3115 | goto qsec_out; |
| 3116 | } |
| 3117 | |
| 3118 | /* BB check that data area is minimum length and as big as acl_len */ |
| 3119 | |
Steve French | af6f461 | 2007-10-16 18:40:37 +0000 | [diff] [blame] | 3120 | acl_len = le32_to_cpu(*parm); |
Steve French | 630f3f0c | 2007-10-25 21:17:17 +0000 | [diff] [blame] | 3121 | if (acl_len != *pbuflen) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 3122 | cERROR(1, "acl length %d does not match %d", |
| 3123 | acl_len, *pbuflen); |
Steve French | 630f3f0c | 2007-10-25 21:17:17 +0000 | [diff] [blame] | 3124 | if (*pbuflen > acl_len) |
| 3125 | *pbuflen = acl_len; |
| 3126 | } |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 3127 | |
Steve French | 630f3f0c | 2007-10-25 21:17:17 +0000 | [diff] [blame] | 3128 | /* check if buffer is big enough for the acl |
| 3129 | header followed by the smallest SID */ |
| 3130 | if ((*pbuflen < sizeof(struct cifs_ntsd) + 8) || |
| 3131 | (*pbuflen >= 64 * 1024)) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 3132 | cERROR(1, "bad acl length %d", *pbuflen); |
Steve French | 630f3f0c | 2007-10-25 21:17:17 +0000 | [diff] [blame] | 3133 | rc = -EINVAL; |
| 3134 | *pbuflen = 0; |
| 3135 | } else { |
| 3136 | *acl_inf = kmalloc(*pbuflen, GFP_KERNEL); |
| 3137 | if (*acl_inf == NULL) { |
| 3138 | *pbuflen = 0; |
| 3139 | rc = -ENOMEM; |
| 3140 | } |
| 3141 | memcpy(*acl_inf, pdata, *pbuflen); |
| 3142 | } |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 3143 | } |
| 3144 | qsec_out: |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 3145 | if (buf_type == CIFS_SMALL_BUFFER) |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 3146 | cifs_small_buf_release(iov[0].iov_base); |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 3147 | else if (buf_type == CIFS_LARGE_BUFFER) |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 3148 | cifs_buf_release(iov[0].iov_base); |
Steve French | 4b8f930 | 2006-02-26 16:41:18 +0000 | [diff] [blame] | 3149 | /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */ |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 3150 | return rc; |
| 3151 | } |
Steve French | 9783758 | 2007-12-31 07:47:21 +0000 | [diff] [blame] | 3152 | |
| 3153 | int |
| 3154 | CIFSSMBSetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid, |
| 3155 | struct cifs_ntsd *pntsd, __u32 acllen) |
| 3156 | { |
| 3157 | __u16 byte_count, param_count, data_count, param_offset, data_offset; |
| 3158 | int rc = 0; |
| 3159 | int bytes_returned = 0; |
| 3160 | SET_SEC_DESC_REQ *pSMB = NULL; |
| 3161 | NTRANSACT_RSP *pSMBr = NULL; |
| 3162 | |
| 3163 | setCifsAclRetry: |
| 3164 | rc = smb_init(SMB_COM_NT_TRANSACT, 19, tcon, (void **) &pSMB, |
| 3165 | (void **) &pSMBr); |
| 3166 | if (rc) |
| 3167 | return (rc); |
| 3168 | |
| 3169 | pSMB->MaxSetupCount = 0; |
| 3170 | pSMB->Reserved = 0; |
| 3171 | |
| 3172 | param_count = 8; |
| 3173 | param_offset = offsetof(struct smb_com_transaction_ssec_req, Fid) - 4; |
| 3174 | data_count = acllen; |
| 3175 | data_offset = param_offset + param_count; |
| 3176 | byte_count = 3 /* pad */ + param_count; |
| 3177 | |
| 3178 | pSMB->DataCount = cpu_to_le32(data_count); |
| 3179 | pSMB->TotalDataCount = pSMB->DataCount; |
| 3180 | pSMB->MaxParameterCount = cpu_to_le32(4); |
| 3181 | pSMB->MaxDataCount = cpu_to_le32(16384); |
| 3182 | pSMB->ParameterCount = cpu_to_le32(param_count); |
| 3183 | pSMB->ParameterOffset = cpu_to_le32(param_offset); |
| 3184 | pSMB->TotalParameterCount = pSMB->ParameterCount; |
| 3185 | pSMB->DataOffset = cpu_to_le32(data_offset); |
| 3186 | pSMB->SetupCount = 0; |
| 3187 | pSMB->SubCommand = cpu_to_le16(NT_TRANSACT_SET_SECURITY_DESC); |
| 3188 | pSMB->ByteCount = cpu_to_le16(byte_count+data_count); |
| 3189 | |
| 3190 | pSMB->Fid = fid; /* file handle always le */ |
| 3191 | pSMB->Reserved2 = 0; |
| 3192 | pSMB->AclFlags = cpu_to_le32(CIFS_ACL_DACL); |
| 3193 | |
| 3194 | if (pntsd && acllen) { |
| 3195 | memcpy((char *) &pSMBr->hdr.Protocol + data_offset, |
| 3196 | (char *) pntsd, |
| 3197 | acllen); |
| 3198 | pSMB->hdr.smb_buf_length += (byte_count + data_count); |
| 3199 | |
| 3200 | } else |
| 3201 | pSMB->hdr.smb_buf_length += byte_count; |
| 3202 | |
| 3203 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 3204 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 3205 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 3206 | cFYI(1, "SetCIFSACL bytes_returned: %d, rc: %d", bytes_returned, rc); |
Steve French | 9783758 | 2007-12-31 07:47:21 +0000 | [diff] [blame] | 3207 | if (rc) |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 3208 | cFYI(1, "Set CIFS ACL returned %d", rc); |
Steve French | 9783758 | 2007-12-31 07:47:21 +0000 | [diff] [blame] | 3209 | cifs_buf_release(pSMB); |
| 3210 | |
| 3211 | if (rc == -EAGAIN) |
| 3212 | goto setCifsAclRetry; |
| 3213 | |
| 3214 | return (rc); |
| 3215 | } |
| 3216 | |
Steve French | 297647c | 2007-10-12 04:11:59 +0000 | [diff] [blame] | 3217 | #endif /* CONFIG_CIFS_EXPERIMENTAL */ |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 3218 | |
Steve French | 6b8edfe | 2005-08-23 20:26:03 -0700 | [diff] [blame] | 3219 | /* Legacy Query Path Information call for lookup to old servers such |
| 3220 | as Win9x/WinME */ |
| 3221 | int SMBQueryInformation(const int xid, struct cifsTconInfo *tcon, |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 3222 | const unsigned char *searchName, |
| 3223 | FILE_ALL_INFO *pFinfo, |
| 3224 | const struct nls_table *nls_codepage, int remap) |
Steve French | 6b8edfe | 2005-08-23 20:26:03 -0700 | [diff] [blame] | 3225 | { |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 3226 | QUERY_INFORMATION_REQ *pSMB; |
| 3227 | QUERY_INFORMATION_RSP *pSMBr; |
Steve French | 6b8edfe | 2005-08-23 20:26:03 -0700 | [diff] [blame] | 3228 | int rc = 0; |
| 3229 | int bytes_returned; |
| 3230 | int name_len; |
| 3231 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 3232 | cFYI(1, "In SMBQPath path %s", searchName); |
Steve French | 6b8edfe | 2005-08-23 20:26:03 -0700 | [diff] [blame] | 3233 | QInfRetry: |
| 3234 | rc = smb_init(SMB_COM_QUERY_INFORMATION, 0, tcon, (void **) &pSMB, |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 3235 | (void **) &pSMBr); |
Steve French | 6b8edfe | 2005-08-23 20:26:03 -0700 | [diff] [blame] | 3236 | if (rc) |
| 3237 | return rc; |
| 3238 | |
| 3239 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 3240 | name_len = |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 3241 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
| 3242 | PATH_MAX, nls_codepage, remap); |
Steve French | 6b8edfe | 2005-08-23 20:26:03 -0700 | [diff] [blame] | 3243 | name_len++; /* trailing null */ |
| 3244 | name_len *= 2; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 3245 | } else { |
Steve French | 6b8edfe | 2005-08-23 20:26:03 -0700 | [diff] [blame] | 3246 | name_len = strnlen(searchName, PATH_MAX); |
| 3247 | name_len++; /* trailing null */ |
| 3248 | strncpy(pSMB->FileName, searchName, name_len); |
| 3249 | } |
| 3250 | pSMB->BufferFormat = 0x04; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 3251 | name_len++; /* account for buffer type byte */ |
Steve French | 6b8edfe | 2005-08-23 20:26:03 -0700 | [diff] [blame] | 3252 | pSMB->hdr.smb_buf_length += (__u16) name_len; |
| 3253 | pSMB->ByteCount = cpu_to_le16(name_len); |
| 3254 | |
| 3255 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 3256 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
Steve French | 6b8edfe | 2005-08-23 20:26:03 -0700 | [diff] [blame] | 3257 | if (rc) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 3258 | cFYI(1, "Send error in QueryInfo = %d", rc); |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 3259 | } else if (pFinfo) { |
Steve French | 1bd5bbc | 2006-09-28 03:35:57 +0000 | [diff] [blame] | 3260 | struct timespec ts; |
| 3261 | __u32 time = le32_to_cpu(pSMBr->last_write_time); |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 3262 | |
| 3263 | /* decode response */ |
Steve French | 1bd5bbc | 2006-09-28 03:35:57 +0000 | [diff] [blame] | 3264 | /* BB FIXME - add time zone adjustment BB */ |
Steve French | 6b8edfe | 2005-08-23 20:26:03 -0700 | [diff] [blame] | 3265 | memset(pFinfo, 0, sizeof(FILE_ALL_INFO)); |
Steve French | 1bd5bbc | 2006-09-28 03:35:57 +0000 | [diff] [blame] | 3266 | ts.tv_nsec = 0; |
| 3267 | ts.tv_sec = time; |
| 3268 | /* decode time fields */ |
Al Viro | 733f99a | 2006-10-14 16:48:26 +0100 | [diff] [blame] | 3269 | pFinfo->ChangeTime = cpu_to_le64(cifs_UnixTimeToNT(ts)); |
Steve French | 1bd5bbc | 2006-09-28 03:35:57 +0000 | [diff] [blame] | 3270 | pFinfo->LastWriteTime = pFinfo->ChangeTime; |
| 3271 | pFinfo->LastAccessTime = 0; |
Steve French | 70ca734 | 2005-09-22 16:32:06 -0700 | [diff] [blame] | 3272 | pFinfo->AllocationSize = |
| 3273 | cpu_to_le64(le32_to_cpu(pSMBr->size)); |
| 3274 | pFinfo->EndOfFile = pFinfo->AllocationSize; |
| 3275 | pFinfo->Attributes = |
| 3276 | cpu_to_le32(le16_to_cpu(pSMBr->attr)); |
Steve French | 6b8edfe | 2005-08-23 20:26:03 -0700 | [diff] [blame] | 3277 | } else |
| 3278 | rc = -EIO; /* bad buffer passed in */ |
| 3279 | |
| 3280 | cifs_buf_release(pSMB); |
| 3281 | |
| 3282 | if (rc == -EAGAIN) |
| 3283 | goto QInfRetry; |
| 3284 | |
| 3285 | return rc; |
| 3286 | } |
| 3287 | |
Jeff Layton | bcd5357 | 2010-02-12 07:44:16 -0500 | [diff] [blame] | 3288 | int |
| 3289 | CIFSSMBQFileInfo(const int xid, struct cifsTconInfo *tcon, |
| 3290 | u16 netfid, FILE_ALL_INFO *pFindData) |
| 3291 | { |
| 3292 | struct smb_t2_qfi_req *pSMB = NULL; |
| 3293 | struct smb_t2_qfi_rsp *pSMBr = NULL; |
| 3294 | int rc = 0; |
| 3295 | int bytes_returned; |
| 3296 | __u16 params, byte_count; |
Steve French | 6b8edfe | 2005-08-23 20:26:03 -0700 | [diff] [blame] | 3297 | |
Jeff Layton | bcd5357 | 2010-02-12 07:44:16 -0500 | [diff] [blame] | 3298 | QFileInfoRetry: |
| 3299 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 3300 | (void **) &pSMBr); |
| 3301 | if (rc) |
| 3302 | return rc; |
Steve French | 6b8edfe | 2005-08-23 20:26:03 -0700 | [diff] [blame] | 3303 | |
Jeff Layton | bcd5357 | 2010-02-12 07:44:16 -0500 | [diff] [blame] | 3304 | params = 2 /* level */ + 2 /* fid */; |
| 3305 | pSMB->t2.TotalDataCount = 0; |
| 3306 | pSMB->t2.MaxParameterCount = cpu_to_le16(4); |
| 3307 | /* BB find exact max data count below from sess structure BB */ |
| 3308 | pSMB->t2.MaxDataCount = cpu_to_le16(CIFSMaxBufSize); |
| 3309 | pSMB->t2.MaxSetupCount = 0; |
| 3310 | pSMB->t2.Reserved = 0; |
| 3311 | pSMB->t2.Flags = 0; |
| 3312 | pSMB->t2.Timeout = 0; |
| 3313 | pSMB->t2.Reserved2 = 0; |
| 3314 | pSMB->t2.ParameterOffset = cpu_to_le16(offsetof(struct smb_t2_qfi_req, |
| 3315 | Fid) - 4); |
| 3316 | pSMB->t2.DataCount = 0; |
| 3317 | pSMB->t2.DataOffset = 0; |
| 3318 | pSMB->t2.SetupCount = 1; |
| 3319 | pSMB->t2.Reserved3 = 0; |
| 3320 | pSMB->t2.SubCommand = cpu_to_le16(TRANS2_QUERY_FILE_INFORMATION); |
| 3321 | byte_count = params + 1 /* pad */ ; |
| 3322 | pSMB->t2.TotalParameterCount = cpu_to_le16(params); |
| 3323 | pSMB->t2.ParameterCount = pSMB->t2.TotalParameterCount; |
| 3324 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_ALL_INFO); |
| 3325 | pSMB->Pad = 0; |
| 3326 | pSMB->Fid = netfid; |
| 3327 | pSMB->hdr.smb_buf_length += byte_count; |
| 3328 | |
| 3329 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 3330 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 3331 | if (rc) { |
Steve French | f19159d | 2010-04-21 04:12:10 +0000 | [diff] [blame] | 3332 | cFYI(1, "Send error in QPathInfo = %d", rc); |
Jeff Layton | bcd5357 | 2010-02-12 07:44:16 -0500 | [diff] [blame] | 3333 | } else { /* decode response */ |
| 3334 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
| 3335 | |
| 3336 | if (rc) /* BB add auto retry on EOPNOTSUPP? */ |
| 3337 | rc = -EIO; |
| 3338 | else if (pSMBr->ByteCount < 40) |
| 3339 | rc = -EIO; /* bad smb */ |
| 3340 | else if (pFindData) { |
| 3341 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
| 3342 | memcpy((char *) pFindData, |
| 3343 | (char *) &pSMBr->hdr.Protocol + |
| 3344 | data_offset, sizeof(FILE_ALL_INFO)); |
| 3345 | } else |
| 3346 | rc = -ENOMEM; |
| 3347 | } |
| 3348 | cifs_buf_release(pSMB); |
| 3349 | if (rc == -EAGAIN) |
| 3350 | goto QFileInfoRetry; |
| 3351 | |
| 3352 | return rc; |
| 3353 | } |
Steve French | 6b8edfe | 2005-08-23 20:26:03 -0700 | [diff] [blame] | 3354 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3355 | int |
| 3356 | CIFSSMBQPathInfo(const int xid, struct cifsTconInfo *tcon, |
| 3357 | const unsigned char *searchName, |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 3358 | FILE_ALL_INFO *pFindData, |
Steve French | acf1a1b | 2006-10-12 03:28:28 +0000 | [diff] [blame] | 3359 | int legacy /* old style infolevel */, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 3360 | const struct nls_table *nls_codepage, int remap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3361 | { |
| 3362 | /* level 263 SMB_QUERY_FILE_ALL_INFO */ |
| 3363 | TRANSACTION2_QPI_REQ *pSMB = NULL; |
| 3364 | TRANSACTION2_QPI_RSP *pSMBr = NULL; |
| 3365 | int rc = 0; |
| 3366 | int bytes_returned; |
| 3367 | int name_len; |
| 3368 | __u16 params, byte_count; |
| 3369 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 3370 | /* cFYI(1, "In QPathInfo path %s", searchName); */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3371 | QPathInfoRetry: |
| 3372 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 3373 | (void **) &pSMBr); |
| 3374 | if (rc) |
| 3375 | return rc; |
| 3376 | |
| 3377 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 3378 | name_len = |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 3379 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 3380 | PATH_MAX, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3381 | name_len++; /* trailing null */ |
| 3382 | name_len *= 2; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 3383 | } else { /* BB improve the check for buffer overruns BB */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3384 | name_len = strnlen(searchName, PATH_MAX); |
| 3385 | name_len++; /* trailing null */ |
| 3386 | strncpy(pSMB->FileName, searchName, name_len); |
| 3387 | } |
| 3388 | |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 3389 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3390 | pSMB->TotalDataCount = 0; |
| 3391 | pSMB->MaxParameterCount = cpu_to_le16(2); |
Steve French | 582d21e | 2008-05-13 04:54:12 +0000 | [diff] [blame] | 3392 | /* BB find exact max SMB PDU from sess structure BB */ |
| 3393 | pSMB->MaxDataCount = cpu_to_le16(4000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3394 | pSMB->MaxSetupCount = 0; |
| 3395 | pSMB->Reserved = 0; |
| 3396 | pSMB->Flags = 0; |
| 3397 | pSMB->Timeout = 0; |
| 3398 | pSMB->Reserved2 = 0; |
| 3399 | pSMB->ParameterOffset = cpu_to_le16(offsetof( |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 3400 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3401 | pSMB->DataCount = 0; |
| 3402 | pSMB->DataOffset = 0; |
| 3403 | pSMB->SetupCount = 1; |
| 3404 | pSMB->Reserved3 = 0; |
| 3405 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); |
| 3406 | byte_count = params + 1 /* pad */ ; |
| 3407 | pSMB->TotalParameterCount = cpu_to_le16(params); |
| 3408 | pSMB->ParameterCount = pSMB->TotalParameterCount; |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 3409 | if (legacy) |
Steve French | acf1a1b | 2006-10-12 03:28:28 +0000 | [diff] [blame] | 3410 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_STANDARD); |
| 3411 | else |
| 3412 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_ALL_INFO); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3413 | pSMB->Reserved4 = 0; |
| 3414 | pSMB->hdr.smb_buf_length += byte_count; |
| 3415 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 3416 | |
| 3417 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 3418 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 3419 | if (rc) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 3420 | cFYI(1, "Send error in QPathInfo = %d", rc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3421 | } else { /* decode response */ |
| 3422 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
| 3423 | |
Steve French | acf1a1b | 2006-10-12 03:28:28 +0000 | [diff] [blame] | 3424 | if (rc) /* BB add auto retry on EOPNOTSUPP? */ |
| 3425 | rc = -EIO; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 3426 | else if (!legacy && (pSMBr->ByteCount < 40)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3427 | rc = -EIO; /* bad smb */ |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 3428 | else if (legacy && (pSMBr->ByteCount < 24)) |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 3429 | rc = -EIO; /* 24 or 26 expected but we do not read |
| 3430 | last field */ |
| 3431 | else if (pFindData) { |
Steve French | acf1a1b | 2006-10-12 03:28:28 +0000 | [diff] [blame] | 3432 | int size; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3433 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 3434 | |
| 3435 | /* On legacy responses we do not read the last field, |
| 3436 | EAsize, fortunately since it varies by subdialect and |
| 3437 | also note it differs on Set vs. Get, ie two bytes or 4 |
| 3438 | bytes depending but we don't care here */ |
| 3439 | if (legacy) |
Steve French | acf1a1b | 2006-10-12 03:28:28 +0000 | [diff] [blame] | 3440 | size = sizeof(FILE_INFO_STANDARD); |
| 3441 | else |
| 3442 | size = sizeof(FILE_ALL_INFO); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3443 | memcpy((char *) pFindData, |
| 3444 | (char *) &pSMBr->hdr.Protocol + |
Steve French | acf1a1b | 2006-10-12 03:28:28 +0000 | [diff] [blame] | 3445 | data_offset, size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3446 | } else |
| 3447 | rc = -ENOMEM; |
| 3448 | } |
| 3449 | cifs_buf_release(pSMB); |
| 3450 | if (rc == -EAGAIN) |
| 3451 | goto QPathInfoRetry; |
| 3452 | |
| 3453 | return rc; |
| 3454 | } |
| 3455 | |
| 3456 | int |
Jeff Layton | c8634fd | 2010-02-12 07:44:17 -0500 | [diff] [blame] | 3457 | CIFSSMBUnixQFileInfo(const int xid, struct cifsTconInfo *tcon, |
| 3458 | u16 netfid, FILE_UNIX_BASIC_INFO *pFindData) |
| 3459 | { |
| 3460 | struct smb_t2_qfi_req *pSMB = NULL; |
| 3461 | struct smb_t2_qfi_rsp *pSMBr = NULL; |
| 3462 | int rc = 0; |
| 3463 | int bytes_returned; |
| 3464 | __u16 params, byte_count; |
| 3465 | |
| 3466 | UnixQFileInfoRetry: |
| 3467 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 3468 | (void **) &pSMBr); |
| 3469 | if (rc) |
| 3470 | return rc; |
| 3471 | |
| 3472 | params = 2 /* level */ + 2 /* fid */; |
| 3473 | pSMB->t2.TotalDataCount = 0; |
| 3474 | pSMB->t2.MaxParameterCount = cpu_to_le16(4); |
| 3475 | /* BB find exact max data count below from sess structure BB */ |
| 3476 | pSMB->t2.MaxDataCount = cpu_to_le16(CIFSMaxBufSize); |
| 3477 | pSMB->t2.MaxSetupCount = 0; |
| 3478 | pSMB->t2.Reserved = 0; |
| 3479 | pSMB->t2.Flags = 0; |
| 3480 | pSMB->t2.Timeout = 0; |
| 3481 | pSMB->t2.Reserved2 = 0; |
| 3482 | pSMB->t2.ParameterOffset = cpu_to_le16(offsetof(struct smb_t2_qfi_req, |
| 3483 | Fid) - 4); |
| 3484 | pSMB->t2.DataCount = 0; |
| 3485 | pSMB->t2.DataOffset = 0; |
| 3486 | pSMB->t2.SetupCount = 1; |
| 3487 | pSMB->t2.Reserved3 = 0; |
| 3488 | pSMB->t2.SubCommand = cpu_to_le16(TRANS2_QUERY_FILE_INFORMATION); |
| 3489 | byte_count = params + 1 /* pad */ ; |
| 3490 | pSMB->t2.TotalParameterCount = cpu_to_le16(params); |
| 3491 | pSMB->t2.ParameterCount = pSMB->t2.TotalParameterCount; |
| 3492 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_UNIX_BASIC); |
| 3493 | pSMB->Pad = 0; |
| 3494 | pSMB->Fid = netfid; |
| 3495 | pSMB->hdr.smb_buf_length += byte_count; |
| 3496 | |
| 3497 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 3498 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 3499 | if (rc) { |
Steve French | f19159d | 2010-04-21 04:12:10 +0000 | [diff] [blame] | 3500 | cFYI(1, "Send error in QPathInfo = %d", rc); |
Jeff Layton | c8634fd | 2010-02-12 07:44:17 -0500 | [diff] [blame] | 3501 | } else { /* decode response */ |
| 3502 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
| 3503 | |
| 3504 | if (rc || (pSMBr->ByteCount < sizeof(FILE_UNIX_BASIC_INFO))) { |
Steve French | f19159d | 2010-04-21 04:12:10 +0000 | [diff] [blame] | 3505 | cERROR(1, "Malformed FILE_UNIX_BASIC_INFO response.\n" |
Jeff Layton | c8634fd | 2010-02-12 07:44:17 -0500 | [diff] [blame] | 3506 | "Unix Extensions can be disabled on mount " |
Steve French | f19159d | 2010-04-21 04:12:10 +0000 | [diff] [blame] | 3507 | "by specifying the nosfu mount option."); |
Jeff Layton | c8634fd | 2010-02-12 07:44:17 -0500 | [diff] [blame] | 3508 | rc = -EIO; /* bad smb */ |
| 3509 | } else { |
| 3510 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
| 3511 | memcpy((char *) pFindData, |
| 3512 | (char *) &pSMBr->hdr.Protocol + |
| 3513 | data_offset, |
| 3514 | sizeof(FILE_UNIX_BASIC_INFO)); |
| 3515 | } |
| 3516 | } |
| 3517 | |
| 3518 | cifs_buf_release(pSMB); |
| 3519 | if (rc == -EAGAIN) |
| 3520 | goto UnixQFileInfoRetry; |
| 3521 | |
| 3522 | return rc; |
| 3523 | } |
| 3524 | |
| 3525 | int |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3526 | CIFSSMBUnixQPathInfo(const int xid, struct cifsTconInfo *tcon, |
| 3527 | const unsigned char *searchName, |
Steve French | 582d21e | 2008-05-13 04:54:12 +0000 | [diff] [blame] | 3528 | FILE_UNIX_BASIC_INFO *pFindData, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 3529 | const struct nls_table *nls_codepage, int remap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3530 | { |
| 3531 | /* SMB_QUERY_FILE_UNIX_BASIC */ |
| 3532 | TRANSACTION2_QPI_REQ *pSMB = NULL; |
| 3533 | TRANSACTION2_QPI_RSP *pSMBr = NULL; |
| 3534 | int rc = 0; |
| 3535 | int bytes_returned = 0; |
| 3536 | int name_len; |
| 3537 | __u16 params, byte_count; |
| 3538 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 3539 | cFYI(1, "In QPathInfo (Unix) the path %s", searchName); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3540 | UnixQPathInfoRetry: |
| 3541 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 3542 | (void **) &pSMBr); |
| 3543 | if (rc) |
| 3544 | return rc; |
| 3545 | |
| 3546 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 3547 | name_len = |
Steve French | b1a4569 | 2005-05-17 16:07:23 -0500 | [diff] [blame] | 3548 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 3549 | PATH_MAX, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3550 | name_len++; /* trailing null */ |
| 3551 | name_len *= 2; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 3552 | } else { /* BB improve the check for buffer overruns BB */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3553 | name_len = strnlen(searchName, PATH_MAX); |
| 3554 | name_len++; /* trailing null */ |
| 3555 | strncpy(pSMB->FileName, searchName, name_len); |
| 3556 | } |
| 3557 | |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 3558 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3559 | pSMB->TotalDataCount = 0; |
| 3560 | pSMB->MaxParameterCount = cpu_to_le16(2); |
| 3561 | /* BB find exact max SMB PDU from sess structure BB */ |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 3562 | pSMB->MaxDataCount = cpu_to_le16(4000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3563 | pSMB->MaxSetupCount = 0; |
| 3564 | pSMB->Reserved = 0; |
| 3565 | pSMB->Flags = 0; |
| 3566 | pSMB->Timeout = 0; |
| 3567 | pSMB->Reserved2 = 0; |
| 3568 | pSMB->ParameterOffset = cpu_to_le16(offsetof( |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 3569 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3570 | pSMB->DataCount = 0; |
| 3571 | pSMB->DataOffset = 0; |
| 3572 | pSMB->SetupCount = 1; |
| 3573 | pSMB->Reserved3 = 0; |
| 3574 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); |
| 3575 | byte_count = params + 1 /* pad */ ; |
| 3576 | pSMB->TotalParameterCount = cpu_to_le16(params); |
| 3577 | pSMB->ParameterCount = pSMB->TotalParameterCount; |
| 3578 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_UNIX_BASIC); |
| 3579 | pSMB->Reserved4 = 0; |
| 3580 | pSMB->hdr.smb_buf_length += byte_count; |
| 3581 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 3582 | |
| 3583 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 3584 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 3585 | if (rc) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 3586 | cFYI(1, "Send error in QPathInfo = %d", rc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3587 | } else { /* decode response */ |
| 3588 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
| 3589 | |
| 3590 | if (rc || (pSMBr->ByteCount < sizeof(FILE_UNIX_BASIC_INFO))) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 3591 | cERROR(1, "Malformed FILE_UNIX_BASIC_INFO response.\n" |
Steve French | 1e71f25 | 2007-09-20 15:30:07 +0000 | [diff] [blame] | 3592 | "Unix Extensions can be disabled on mount " |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 3593 | "by specifying the nosfu mount option."); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3594 | rc = -EIO; /* bad smb */ |
| 3595 | } else { |
| 3596 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
| 3597 | memcpy((char *) pFindData, |
| 3598 | (char *) &pSMBr->hdr.Protocol + |
| 3599 | data_offset, |
Steve French | 630f3f0c | 2007-10-25 21:17:17 +0000 | [diff] [blame] | 3600 | sizeof(FILE_UNIX_BASIC_INFO)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3601 | } |
| 3602 | } |
| 3603 | cifs_buf_release(pSMB); |
| 3604 | if (rc == -EAGAIN) |
| 3605 | goto UnixQPathInfoRetry; |
| 3606 | |
| 3607 | return rc; |
| 3608 | } |
| 3609 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3610 | /* xid, tcon, searchName and codepage are input parms, rest are returned */ |
| 3611 | int |
| 3612 | CIFSFindFirst(const int xid, struct cifsTconInfo *tcon, |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 3613 | const char *searchName, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3614 | const struct nls_table *nls_codepage, |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 3615 | __u16 *pnetfid, |
| 3616 | struct cifs_search_info *psrch_inf, int remap, const char dirsep) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3617 | { |
| 3618 | /* level 257 SMB_ */ |
| 3619 | TRANSACTION2_FFIRST_REQ *pSMB = NULL; |
| 3620 | TRANSACTION2_FFIRST_RSP *pSMBr = NULL; |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 3621 | T2_FFIRST_RSP_PARMS *parms; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3622 | int rc = 0; |
| 3623 | int bytes_returned = 0; |
| 3624 | int name_len; |
| 3625 | __u16 params, byte_count; |
| 3626 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 3627 | cFYI(1, "In FindFirst for %s", searchName); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3628 | |
| 3629 | findFirstRetry: |
| 3630 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 3631 | (void **) &pSMBr); |
| 3632 | if (rc) |
| 3633 | return rc; |
| 3634 | |
| 3635 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 3636 | name_len = |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 3637 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 3638 | PATH_MAX, nls_codepage, remap); |
| 3639 | /* We can not add the asterik earlier in case |
| 3640 | it got remapped to 0xF03A as if it were part of the |
| 3641 | directory name instead of a wildcard */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3642 | name_len *= 2; |
Jeremy Allison | ac67055 | 2005-06-22 17:26:35 -0700 | [diff] [blame] | 3643 | pSMB->FileName[name_len] = dirsep; |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 3644 | pSMB->FileName[name_len+1] = 0; |
| 3645 | pSMB->FileName[name_len+2] = '*'; |
| 3646 | pSMB->FileName[name_len+3] = 0; |
| 3647 | name_len += 4; /* now the trailing null */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3648 | pSMB->FileName[name_len] = 0; /* null terminate just in case */ |
| 3649 | pSMB->FileName[name_len+1] = 0; |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 3650 | name_len += 2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3651 | } else { /* BB add check for overrun of SMB buf BB */ |
| 3652 | name_len = strnlen(searchName, PATH_MAX); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3653 | /* BB fix here and in unicode clause above ie |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 3654 | if (name_len > buffersize-header) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3655 | free buffer exit; BB */ |
| 3656 | strncpy(pSMB->FileName, searchName, name_len); |
Jeremy Allison | ac67055 | 2005-06-22 17:26:35 -0700 | [diff] [blame] | 3657 | pSMB->FileName[name_len] = dirsep; |
Steve French | 6857547 | 2005-04-30 11:10:57 -0700 | [diff] [blame] | 3658 | pSMB->FileName[name_len+1] = '*'; |
| 3659 | pSMB->FileName[name_len+2] = 0; |
| 3660 | name_len += 3; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3661 | } |
| 3662 | |
| 3663 | params = 12 + name_len /* includes null */ ; |
| 3664 | pSMB->TotalDataCount = 0; /* no EAs */ |
| 3665 | pSMB->MaxParameterCount = cpu_to_le16(10); |
| 3666 | pSMB->MaxDataCount = cpu_to_le16((tcon->ses->server->maxBuf - |
| 3667 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); |
| 3668 | pSMB->MaxSetupCount = 0; |
| 3669 | pSMB->Reserved = 0; |
| 3670 | pSMB->Flags = 0; |
| 3671 | pSMB->Timeout = 0; |
| 3672 | pSMB->Reserved2 = 0; |
| 3673 | byte_count = params + 1 /* pad */ ; |
| 3674 | pSMB->TotalParameterCount = cpu_to_le16(params); |
| 3675 | pSMB->ParameterCount = pSMB->TotalParameterCount; |
| 3676 | pSMB->ParameterOffset = cpu_to_le16( |
Steve French | 8827481 | 2006-03-09 22:21:45 +0000 | [diff] [blame] | 3677 | offsetof(struct smb_com_transaction2_ffirst_req, SearchAttributes) |
| 3678 | - 4); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3679 | pSMB->DataCount = 0; |
| 3680 | pSMB->DataOffset = 0; |
| 3681 | pSMB->SetupCount = 1; /* one byte, no need to make endian neutral */ |
| 3682 | pSMB->Reserved3 = 0; |
| 3683 | pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_FIRST); |
| 3684 | pSMB->SearchAttributes = |
| 3685 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | |
| 3686 | ATTR_DIRECTORY); |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 3687 | pSMB->SearchCount = cpu_to_le16(CIFSMaxBufSize/sizeof(FILE_UNIX_INFO)); |
| 3688 | pSMB->SearchFlags = cpu_to_le16(CIFS_SEARCH_CLOSE_AT_END | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3689 | CIFS_SEARCH_RETURN_RESUME); |
| 3690 | pSMB->InformationLevel = cpu_to_le16(psrch_inf->info_level); |
| 3691 | |
| 3692 | /* BB what should we set StorageType to? Does it matter? BB */ |
| 3693 | pSMB->SearchStorageType = 0; |
| 3694 | pSMB->hdr.smb_buf_length += byte_count; |
| 3695 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 3696 | |
| 3697 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 3698 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 3699 | cifs_stats_inc(&tcon->num_ffirst); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3700 | |
Steve French | 8827481 | 2006-03-09 22:21:45 +0000 | [diff] [blame] | 3701 | if (rc) {/* BB add logic to retry regular search if Unix search |
| 3702 | rejected unexpectedly by server */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3703 | /* BB Add code to handle unsupported level rc */ |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 3704 | cFYI(1, "Error in FindFirst = %d", rc); |
Steve French | 1982c34 | 2005-08-17 12:38:22 -0700 | [diff] [blame] | 3705 | |
Steve French | 8827481 | 2006-03-09 22:21:45 +0000 | [diff] [blame] | 3706 | cifs_buf_release(pSMB); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3707 | |
| 3708 | /* BB eventually could optimize out free and realloc of buf */ |
| 3709 | /* for this case */ |
| 3710 | if (rc == -EAGAIN) |
| 3711 | goto findFirstRetry; |
| 3712 | } else { /* decode response */ |
| 3713 | /* BB remember to free buffer if error BB */ |
| 3714 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 3715 | if (rc == 0) { |
Steve French | b77d753 | 2008-10-08 19:13:46 +0000 | [diff] [blame] | 3716 | unsigned int lnoff; |
| 3717 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3718 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) |
Steve French | 4b18f2a | 2008-04-29 00:06:05 +0000 | [diff] [blame] | 3719 | psrch_inf->unicode = true; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3720 | else |
Steve French | 4b18f2a | 2008-04-29 00:06:05 +0000 | [diff] [blame] | 3721 | psrch_inf->unicode = false; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3722 | |
| 3723 | psrch_inf->ntwrk_buf_start = (char *)pSMBr; |
Steve French | d47d7c1 | 2006-02-28 03:45:48 +0000 | [diff] [blame] | 3724 | psrch_inf->smallBuf = 0; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 3725 | psrch_inf->srch_entries_start = |
| 3726 | (char *) &pSMBr->hdr.Protocol + |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3727 | le16_to_cpu(pSMBr->t2.DataOffset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3728 | parms = (T2_FFIRST_RSP_PARMS *)((char *) &pSMBr->hdr.Protocol + |
| 3729 | le16_to_cpu(pSMBr->t2.ParameterOffset)); |
| 3730 | |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 3731 | if (parms->EndofSearch) |
Steve French | 4b18f2a | 2008-04-29 00:06:05 +0000 | [diff] [blame] | 3732 | psrch_inf->endOfSearch = true; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3733 | else |
Steve French | 4b18f2a | 2008-04-29 00:06:05 +0000 | [diff] [blame] | 3734 | psrch_inf->endOfSearch = false; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3735 | |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 3736 | psrch_inf->entries_in_buffer = |
| 3737 | le16_to_cpu(parms->SearchCount); |
Steve French | 6080823 | 2006-04-22 15:53:05 +0000 | [diff] [blame] | 3738 | psrch_inf->index_of_last_entry = 2 /* skip . and .. */ + |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3739 | psrch_inf->entries_in_buffer; |
Steve French | b77d753 | 2008-10-08 19:13:46 +0000 | [diff] [blame] | 3740 | lnoff = le16_to_cpu(parms->LastNameOffset); |
| 3741 | if (tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE < |
| 3742 | lnoff) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 3743 | cERROR(1, "ignoring corrupt resume name"); |
Steve French | b77d753 | 2008-10-08 19:13:46 +0000 | [diff] [blame] | 3744 | psrch_inf->last_entry = NULL; |
| 3745 | return rc; |
| 3746 | } |
| 3747 | |
Steve French | 0752f15 | 2008-10-07 20:03:33 +0000 | [diff] [blame] | 3748 | psrch_inf->last_entry = psrch_inf->srch_entries_start + |
Steve French | b77d753 | 2008-10-08 19:13:46 +0000 | [diff] [blame] | 3749 | lnoff; |
| 3750 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3751 | *pnetfid = parms->SearchHandle; |
| 3752 | } else { |
| 3753 | cifs_buf_release(pSMB); |
| 3754 | } |
| 3755 | } |
| 3756 | |
| 3757 | return rc; |
| 3758 | } |
| 3759 | |
| 3760 | int CIFSFindNext(const int xid, struct cifsTconInfo *tcon, |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 3761 | __u16 searchHandle, struct cifs_search_info *psrch_inf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3762 | { |
| 3763 | TRANSACTION2_FNEXT_REQ *pSMB = NULL; |
| 3764 | TRANSACTION2_FNEXT_RSP *pSMBr = NULL; |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 3765 | T2_FNEXT_RSP_PARMS *parms; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3766 | char *response_data; |
| 3767 | int rc = 0; |
| 3768 | int bytes_returned, name_len; |
| 3769 | __u16 params, byte_count; |
| 3770 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 3771 | cFYI(1, "In FindNext"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3772 | |
Steve French | 4b18f2a | 2008-04-29 00:06:05 +0000 | [diff] [blame] | 3773 | if (psrch_inf->endOfSearch) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3774 | return -ENOENT; |
| 3775 | |
| 3776 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 3777 | (void **) &pSMBr); |
| 3778 | if (rc) |
| 3779 | return rc; |
| 3780 | |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 3781 | params = 14; /* includes 2 bytes of null string, converted to LE below*/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3782 | byte_count = 0; |
| 3783 | pSMB->TotalDataCount = 0; /* no EAs */ |
| 3784 | pSMB->MaxParameterCount = cpu_to_le16(8); |
| 3785 | pSMB->MaxDataCount = |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 3786 | cpu_to_le16((tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) & |
| 3787 | 0xFFFFFF00); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3788 | pSMB->MaxSetupCount = 0; |
| 3789 | pSMB->Reserved = 0; |
| 3790 | pSMB->Flags = 0; |
| 3791 | pSMB->Timeout = 0; |
| 3792 | pSMB->Reserved2 = 0; |
| 3793 | pSMB->ParameterOffset = cpu_to_le16( |
| 3794 | offsetof(struct smb_com_transaction2_fnext_req,SearchHandle) - 4); |
| 3795 | pSMB->DataCount = 0; |
| 3796 | pSMB->DataOffset = 0; |
| 3797 | pSMB->SetupCount = 1; |
| 3798 | pSMB->Reserved3 = 0; |
| 3799 | pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_NEXT); |
| 3800 | pSMB->SearchHandle = searchHandle; /* always kept as le */ |
| 3801 | pSMB->SearchCount = |
Steve French | 630f3f0c | 2007-10-25 21:17:17 +0000 | [diff] [blame] | 3802 | cpu_to_le16(CIFSMaxBufSize / sizeof(FILE_UNIX_INFO)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3803 | pSMB->InformationLevel = cpu_to_le16(psrch_inf->info_level); |
| 3804 | pSMB->ResumeKey = psrch_inf->resume_key; |
| 3805 | pSMB->SearchFlags = |
| 3806 | cpu_to_le16(CIFS_SEARCH_CLOSE_AT_END | CIFS_SEARCH_RETURN_RESUME); |
| 3807 | |
| 3808 | name_len = psrch_inf->resume_name_len; |
| 3809 | params += name_len; |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 3810 | if (name_len < PATH_MAX) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3811 | memcpy(pSMB->ResumeFileName, psrch_inf->presume_name, name_len); |
| 3812 | byte_count += name_len; |
Steve French | ef6724e | 2005-08-02 21:31:05 -0700 | [diff] [blame] | 3813 | /* 14 byte parm len above enough for 2 byte null terminator */ |
| 3814 | pSMB->ResumeFileName[name_len] = 0; |
| 3815 | pSMB->ResumeFileName[name_len+1] = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3816 | } else { |
| 3817 | rc = -EINVAL; |
| 3818 | goto FNext2_err_exit; |
| 3819 | } |
| 3820 | byte_count = params + 1 /* pad */ ; |
| 3821 | pSMB->TotalParameterCount = cpu_to_le16(params); |
| 3822 | pSMB->ParameterCount = pSMB->TotalParameterCount; |
| 3823 | pSMB->hdr.smb_buf_length += byte_count; |
| 3824 | pSMB->ByteCount = cpu_to_le16(byte_count); |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 3825 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3826 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 3827 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 3828 | cifs_stats_inc(&tcon->num_fnext); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3829 | if (rc) { |
| 3830 | if (rc == -EBADF) { |
Steve French | 4b18f2a | 2008-04-29 00:06:05 +0000 | [diff] [blame] | 3831 | psrch_inf->endOfSearch = true; |
Jeff Layton | 6353450 | 2008-05-12 19:56:05 -0700 | [diff] [blame] | 3832 | cifs_buf_release(pSMB); |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 3833 | rc = 0; /* search probably was closed at end of search*/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3834 | } else |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 3835 | cFYI(1, "FindNext returned = %d", rc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3836 | } else { /* decode response */ |
| 3837 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 3838 | |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 3839 | if (rc == 0) { |
Steve French | b77d753 | 2008-10-08 19:13:46 +0000 | [diff] [blame] | 3840 | unsigned int lnoff; |
| 3841 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3842 | /* BB fixme add lock for file (srch_info) struct here */ |
| 3843 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) |
Steve French | 4b18f2a | 2008-04-29 00:06:05 +0000 | [diff] [blame] | 3844 | psrch_inf->unicode = true; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3845 | else |
Steve French | 4b18f2a | 2008-04-29 00:06:05 +0000 | [diff] [blame] | 3846 | psrch_inf->unicode = false; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3847 | response_data = (char *) &pSMBr->hdr.Protocol + |
| 3848 | le16_to_cpu(pSMBr->t2.ParameterOffset); |
| 3849 | parms = (T2_FNEXT_RSP_PARMS *)response_data; |
| 3850 | response_data = (char *)&pSMBr->hdr.Protocol + |
| 3851 | le16_to_cpu(pSMBr->t2.DataOffset); |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 3852 | if (psrch_inf->smallBuf) |
Steve French | d47d7c1 | 2006-02-28 03:45:48 +0000 | [diff] [blame] | 3853 | cifs_small_buf_release( |
| 3854 | psrch_inf->ntwrk_buf_start); |
| 3855 | else |
| 3856 | cifs_buf_release(psrch_inf->ntwrk_buf_start); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3857 | psrch_inf->srch_entries_start = response_data; |
| 3858 | psrch_inf->ntwrk_buf_start = (char *)pSMB; |
Steve French | d47d7c1 | 2006-02-28 03:45:48 +0000 | [diff] [blame] | 3859 | psrch_inf->smallBuf = 0; |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 3860 | if (parms->EndofSearch) |
Steve French | 4b18f2a | 2008-04-29 00:06:05 +0000 | [diff] [blame] | 3861 | psrch_inf->endOfSearch = true; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3862 | else |
Steve French | 4b18f2a | 2008-04-29 00:06:05 +0000 | [diff] [blame] | 3863 | psrch_inf->endOfSearch = false; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 3864 | psrch_inf->entries_in_buffer = |
| 3865 | le16_to_cpu(parms->SearchCount); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3866 | psrch_inf->index_of_last_entry += |
| 3867 | psrch_inf->entries_in_buffer; |
Steve French | b77d753 | 2008-10-08 19:13:46 +0000 | [diff] [blame] | 3868 | lnoff = le16_to_cpu(parms->LastNameOffset); |
| 3869 | if (tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE < |
| 3870 | lnoff) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 3871 | cERROR(1, "ignoring corrupt resume name"); |
Steve French | b77d753 | 2008-10-08 19:13:46 +0000 | [diff] [blame] | 3872 | psrch_inf->last_entry = NULL; |
| 3873 | return rc; |
| 3874 | } else |
| 3875 | psrch_inf->last_entry = |
| 3876 | psrch_inf->srch_entries_start + lnoff; |
| 3877 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 3878 | /* cFYI(1, "fnxt2 entries in buf %d index_of_last %d", |
| 3879 | psrch_inf->entries_in_buffer, psrch_inf->index_of_last_entry); */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3880 | |
| 3881 | /* BB fixme add unlock here */ |
| 3882 | } |
| 3883 | |
| 3884 | } |
| 3885 | |
| 3886 | /* BB On error, should we leave previous search buf (and count and |
| 3887 | last entry fields) intact or free the previous one? */ |
| 3888 | |
| 3889 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
| 3890 | since file handle passed in no longer valid */ |
| 3891 | FNext2_err_exit: |
| 3892 | if (rc != 0) |
| 3893 | cifs_buf_release(pSMB); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3894 | return rc; |
| 3895 | } |
| 3896 | |
| 3897 | int |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 3898 | CIFSFindClose(const int xid, struct cifsTconInfo *tcon, |
| 3899 | const __u16 searchHandle) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3900 | { |
| 3901 | int rc = 0; |
| 3902 | FINDCLOSE_REQ *pSMB = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3903 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 3904 | cFYI(1, "In CIFSSMBFindClose"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3905 | rc = small_smb_init(SMB_COM_FIND_CLOSE2, 1, tcon, (void **)&pSMB); |
| 3906 | |
| 3907 | /* no sense returning error if session restarted |
| 3908 | as file handle has been closed */ |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 3909 | if (rc == -EAGAIN) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3910 | return 0; |
| 3911 | if (rc) |
| 3912 | return rc; |
| 3913 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3914 | pSMB->FileID = searchHandle; |
| 3915 | pSMB->ByteCount = 0; |
Steve French | 133672e | 2007-11-13 22:41:37 +0000 | [diff] [blame] | 3916 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 3917 | if (rc) |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 3918 | cERROR(1, "Send error in FindClose = %d", rc); |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 3919 | |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 3920 | cifs_stats_inc(&tcon->num_fclose); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3921 | |
| 3922 | /* Since session is dead, search handle closed on server already */ |
| 3923 | if (rc == -EAGAIN) |
| 3924 | rc = 0; |
| 3925 | |
| 3926 | return rc; |
| 3927 | } |
| 3928 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3929 | int |
| 3930 | CIFSGetSrvInodeNumber(const int xid, struct cifsTconInfo *tcon, |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 3931 | const unsigned char *searchName, |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 3932 | __u64 *inode_number, |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 3933 | const struct nls_table *nls_codepage, int remap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3934 | { |
| 3935 | int rc = 0; |
| 3936 | TRANSACTION2_QPI_REQ *pSMB = NULL; |
| 3937 | TRANSACTION2_QPI_RSP *pSMBr = NULL; |
| 3938 | int name_len, bytes_returned; |
| 3939 | __u16 params, byte_count; |
| 3940 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 3941 | cFYI(1, "In GetSrvInodeNum for %s", searchName); |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 3942 | if (tcon == NULL) |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 3943 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3944 | |
| 3945 | GetInodeNumberRetry: |
| 3946 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 3947 | (void **) &pSMBr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3948 | if (rc) |
| 3949 | return rc; |
| 3950 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3951 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 3952 | name_len = |
Steve French | b1a4569 | 2005-05-17 16:07:23 -0500 | [diff] [blame] | 3953 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 3954 | PATH_MAX, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3955 | name_len++; /* trailing null */ |
| 3956 | name_len *= 2; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 3957 | } else { /* BB improve the check for buffer overruns BB */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3958 | name_len = strnlen(searchName, PATH_MAX); |
| 3959 | name_len++; /* trailing null */ |
| 3960 | strncpy(pSMB->FileName, searchName, name_len); |
| 3961 | } |
| 3962 | |
| 3963 | params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ; |
| 3964 | pSMB->TotalDataCount = 0; |
| 3965 | pSMB->MaxParameterCount = cpu_to_le16(2); |
| 3966 | /* BB find exact max data count below from sess structure BB */ |
| 3967 | pSMB->MaxDataCount = cpu_to_le16(4000); |
| 3968 | pSMB->MaxSetupCount = 0; |
| 3969 | pSMB->Reserved = 0; |
| 3970 | pSMB->Flags = 0; |
| 3971 | pSMB->Timeout = 0; |
| 3972 | pSMB->Reserved2 = 0; |
| 3973 | pSMB->ParameterOffset = cpu_to_le16(offsetof( |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 3974 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3975 | pSMB->DataCount = 0; |
| 3976 | pSMB->DataOffset = 0; |
| 3977 | pSMB->SetupCount = 1; |
| 3978 | pSMB->Reserved3 = 0; |
| 3979 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); |
| 3980 | byte_count = params + 1 /* pad */ ; |
| 3981 | pSMB->TotalParameterCount = cpu_to_le16(params); |
| 3982 | pSMB->ParameterCount = pSMB->TotalParameterCount; |
| 3983 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_INTERNAL_INFO); |
| 3984 | pSMB->Reserved4 = 0; |
| 3985 | pSMB->hdr.smb_buf_length += byte_count; |
| 3986 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 3987 | |
| 3988 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 3989 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 3990 | if (rc) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 3991 | cFYI(1, "error %d in QueryInternalInfo", rc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3992 | } else { |
| 3993 | /* decode response */ |
| 3994 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
| 3995 | if (rc || (pSMBr->ByteCount < 2)) |
| 3996 | /* BB also check enough total bytes returned */ |
| 3997 | /* If rc should we check for EOPNOSUPP and |
| 3998 | disable the srvino flag? or in caller? */ |
| 3999 | rc = -EIO; /* bad smb */ |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 4000 | else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4001 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
| 4002 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 4003 | struct file_internal_info *pfinfo; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4004 | /* BB Do we need a cast or hash here ? */ |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 4005 | if (count < 8) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 4006 | cFYI(1, "Illegal size ret in QryIntrnlInf"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4007 | rc = -EIO; |
| 4008 | goto GetInodeNumOut; |
| 4009 | } |
| 4010 | pfinfo = (struct file_internal_info *) |
| 4011 | (data_offset + (char *) &pSMBr->hdr.Protocol); |
Steve French | 85a6dac | 2009-04-01 05:22:00 +0000 | [diff] [blame] | 4012 | *inode_number = le64_to_cpu(pfinfo->UniqueId); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4013 | } |
| 4014 | } |
| 4015 | GetInodeNumOut: |
| 4016 | cifs_buf_release(pSMB); |
| 4017 | if (rc == -EAGAIN) |
| 4018 | goto GetInodeNumberRetry; |
| 4019 | return rc; |
| 4020 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4021 | |
Igor Mammedov | fec4585 | 2008-05-16 13:06:30 +0400 | [diff] [blame] | 4022 | /* parses DFS refferal V3 structure |
| 4023 | * caller is responsible for freeing target_nodes |
| 4024 | * returns: |
| 4025 | * on success - 0 |
| 4026 | * on failure - errno |
| 4027 | */ |
| 4028 | static int |
Steve French | a1fe78f | 2008-05-16 18:48:38 +0000 | [diff] [blame] | 4029 | parse_DFS_referrals(TRANSACTION2_GET_DFS_REFER_RSP *pSMBr, |
Igor Mammedov | fec4585 | 2008-05-16 13:06:30 +0400 | [diff] [blame] | 4030 | unsigned int *num_of_nodes, |
| 4031 | struct dfs_info3_param **target_nodes, |
Igor Mammedov | 2c55608 | 2008-10-23 13:58:42 +0400 | [diff] [blame] | 4032 | const struct nls_table *nls_codepage, int remap, |
| 4033 | const char *searchName) |
Igor Mammedov | fec4585 | 2008-05-16 13:06:30 +0400 | [diff] [blame] | 4034 | { |
| 4035 | int i, rc = 0; |
| 4036 | char *data_end; |
| 4037 | bool is_unicode; |
| 4038 | struct dfs_referral_level_3 *ref; |
| 4039 | |
Harvey Harrison | 5ca33c6 | 2008-07-23 17:45:58 -0700 | [diff] [blame] | 4040 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) |
| 4041 | is_unicode = true; |
| 4042 | else |
| 4043 | is_unicode = false; |
Igor Mammedov | fec4585 | 2008-05-16 13:06:30 +0400 | [diff] [blame] | 4044 | *num_of_nodes = le16_to_cpu(pSMBr->NumberOfReferrals); |
| 4045 | |
| 4046 | if (*num_of_nodes < 1) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 4047 | cERROR(1, "num_referrals: must be at least > 0," |
| 4048 | "but we get num_referrals = %d\n", *num_of_nodes); |
Igor Mammedov | fec4585 | 2008-05-16 13:06:30 +0400 | [diff] [blame] | 4049 | rc = -EINVAL; |
Steve French | a1fe78f | 2008-05-16 18:48:38 +0000 | [diff] [blame] | 4050 | goto parse_DFS_referrals_exit; |
Igor Mammedov | fec4585 | 2008-05-16 13:06:30 +0400 | [diff] [blame] | 4051 | } |
| 4052 | |
| 4053 | ref = (struct dfs_referral_level_3 *) &(pSMBr->referrals); |
Al Viro | 1d92cfd | 2008-06-02 10:59:02 +0100 | [diff] [blame] | 4054 | if (ref->VersionNumber != cpu_to_le16(3)) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 4055 | cERROR(1, "Referrals of V%d version are not supported," |
| 4056 | "should be V3", le16_to_cpu(ref->VersionNumber)); |
Igor Mammedov | fec4585 | 2008-05-16 13:06:30 +0400 | [diff] [blame] | 4057 | rc = -EINVAL; |
Steve French | a1fe78f | 2008-05-16 18:48:38 +0000 | [diff] [blame] | 4058 | goto parse_DFS_referrals_exit; |
Igor Mammedov | fec4585 | 2008-05-16 13:06:30 +0400 | [diff] [blame] | 4059 | } |
| 4060 | |
| 4061 | /* get the upper boundary of the resp buffer */ |
| 4062 | data_end = (char *)(&(pSMBr->PathConsumed)) + |
| 4063 | le16_to_cpu(pSMBr->t2.DataCount); |
| 4064 | |
Steve French | f19159d | 2010-04-21 04:12:10 +0000 | [diff] [blame] | 4065 | cFYI(1, "num_referrals: %d dfs flags: 0x%x ...\n", |
Igor Mammedov | fec4585 | 2008-05-16 13:06:30 +0400 | [diff] [blame] | 4066 | *num_of_nodes, |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 4067 | le32_to_cpu(pSMBr->DFSFlags)); |
Igor Mammedov | fec4585 | 2008-05-16 13:06:30 +0400 | [diff] [blame] | 4068 | |
| 4069 | *target_nodes = kzalloc(sizeof(struct dfs_info3_param) * |
| 4070 | *num_of_nodes, GFP_KERNEL); |
| 4071 | if (*target_nodes == NULL) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 4072 | cERROR(1, "Failed to allocate buffer for target_nodes\n"); |
Igor Mammedov | fec4585 | 2008-05-16 13:06:30 +0400 | [diff] [blame] | 4073 | rc = -ENOMEM; |
Steve French | a1fe78f | 2008-05-16 18:48:38 +0000 | [diff] [blame] | 4074 | goto parse_DFS_referrals_exit; |
Igor Mammedov | fec4585 | 2008-05-16 13:06:30 +0400 | [diff] [blame] | 4075 | } |
| 4076 | |
Daniel Mack | 3ad2f3f | 2010-02-03 08:01:28 +0800 | [diff] [blame] | 4077 | /* collect necessary data from referrals */ |
Igor Mammedov | fec4585 | 2008-05-16 13:06:30 +0400 | [diff] [blame] | 4078 | for (i = 0; i < *num_of_nodes; i++) { |
| 4079 | char *temp; |
| 4080 | int max_len; |
| 4081 | struct dfs_info3_param *node = (*target_nodes)+i; |
| 4082 | |
Steve French | 0e0d2cf | 2009-05-01 05:27:32 +0000 | [diff] [blame] | 4083 | node->flags = le32_to_cpu(pSMBr->DFSFlags); |
Igor Mammedov | 2c55608 | 2008-10-23 13:58:42 +0400 | [diff] [blame] | 4084 | if (is_unicode) { |
Jeff Layton | 331c313 | 2008-12-17 06:31:53 -0500 | [diff] [blame] | 4085 | __le16 *tmp = kmalloc(strlen(searchName)*2 + 2, |
| 4086 | GFP_KERNEL); |
Steve French | 2920ee2 | 2009-08-31 15:27:26 +0000 | [diff] [blame] | 4087 | if (tmp == NULL) { |
| 4088 | rc = -ENOMEM; |
| 4089 | goto parse_DFS_referrals_exit; |
| 4090 | } |
Igor Mammedov | 2c55608 | 2008-10-23 13:58:42 +0400 | [diff] [blame] | 4091 | cifsConvertToUCS((__le16 *) tmp, searchName, |
| 4092 | PATH_MAX, nls_codepage, remap); |
Jeff Layton | 69f801f | 2009-04-30 06:46:32 -0400 | [diff] [blame] | 4093 | node->path_consumed = cifs_ucs2_bytes(tmp, |
| 4094 | le16_to_cpu(pSMBr->PathConsumed), |
Igor Mammedov | 2c55608 | 2008-10-23 13:58:42 +0400 | [diff] [blame] | 4095 | nls_codepage); |
| 4096 | kfree(tmp); |
| 4097 | } else |
| 4098 | node->path_consumed = le16_to_cpu(pSMBr->PathConsumed); |
| 4099 | |
Igor Mammedov | fec4585 | 2008-05-16 13:06:30 +0400 | [diff] [blame] | 4100 | node->server_type = le16_to_cpu(ref->ServerType); |
| 4101 | node->ref_flag = le16_to_cpu(ref->ReferralEntryFlags); |
| 4102 | |
| 4103 | /* copy DfsPath */ |
| 4104 | temp = (char *)ref + le16_to_cpu(ref->DfsPathOffset); |
| 4105 | max_len = data_end - temp; |
Steve French | d185cda | 2009-04-30 17:45:10 +0000 | [diff] [blame] | 4106 | node->path_name = cifs_strndup_from_ucs(temp, max_len, |
| 4107 | is_unicode, nls_codepage); |
Jeff Layton | d8e2f53 | 2009-05-14 07:46:59 -0400 | [diff] [blame] | 4108 | if (!node->path_name) { |
| 4109 | rc = -ENOMEM; |
Steve French | a1fe78f | 2008-05-16 18:48:38 +0000 | [diff] [blame] | 4110 | goto parse_DFS_referrals_exit; |
Jeff Layton | 066ce68 | 2009-04-30 07:16:14 -0400 | [diff] [blame] | 4111 | } |
Igor Mammedov | fec4585 | 2008-05-16 13:06:30 +0400 | [diff] [blame] | 4112 | |
| 4113 | /* copy link target UNC */ |
| 4114 | temp = (char *)ref + le16_to_cpu(ref->NetworkAddressOffset); |
| 4115 | max_len = data_end - temp; |
Steve French | d185cda | 2009-04-30 17:45:10 +0000 | [diff] [blame] | 4116 | node->node_name = cifs_strndup_from_ucs(temp, max_len, |
| 4117 | is_unicode, nls_codepage); |
Jeff Layton | d8e2f53 | 2009-05-14 07:46:59 -0400 | [diff] [blame] | 4118 | if (!node->node_name) |
| 4119 | rc = -ENOMEM; |
Igor Mammedov | fec4585 | 2008-05-16 13:06:30 +0400 | [diff] [blame] | 4120 | } |
| 4121 | |
Steve French | a1fe78f | 2008-05-16 18:48:38 +0000 | [diff] [blame] | 4122 | parse_DFS_referrals_exit: |
Igor Mammedov | fec4585 | 2008-05-16 13:06:30 +0400 | [diff] [blame] | 4123 | if (rc) { |
| 4124 | free_dfs_info_array(*target_nodes, *num_of_nodes); |
| 4125 | *target_nodes = NULL; |
| 4126 | *num_of_nodes = 0; |
| 4127 | } |
| 4128 | return rc; |
| 4129 | } |
| 4130 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4131 | int |
| 4132 | CIFSGetDFSRefer(const int xid, struct cifsSesInfo *ses, |
| 4133 | const unsigned char *searchName, |
Steve French | c2cf07d | 2008-05-15 06:20:02 +0000 | [diff] [blame] | 4134 | struct dfs_info3_param **target_nodes, |
| 4135 | unsigned int *num_of_nodes, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 4136 | const struct nls_table *nls_codepage, int remap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4137 | { |
| 4138 | /* TRANS2_GET_DFS_REFERRAL */ |
| 4139 | TRANSACTION2_GET_DFS_REFER_REQ *pSMB = NULL; |
| 4140 | TRANSACTION2_GET_DFS_REFER_RSP *pSMBr = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4141 | int rc = 0; |
| 4142 | int bytes_returned; |
| 4143 | int name_len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4144 | __u16 params, byte_count; |
Steve French | c2cf07d | 2008-05-15 06:20:02 +0000 | [diff] [blame] | 4145 | *num_of_nodes = 0; |
| 4146 | *target_nodes = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4147 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 4148 | cFYI(1, "In GetDFSRefer the path %s", searchName); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4149 | if (ses == NULL) |
| 4150 | return -ENODEV; |
| 4151 | getDFSRetry: |
| 4152 | rc = smb_init(SMB_COM_TRANSACTION2, 15, NULL, (void **) &pSMB, |
| 4153 | (void **) &pSMBr); |
| 4154 | if (rc) |
| 4155 | return rc; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 4156 | |
| 4157 | /* server pointer checked in called function, |
Steve French | 1982c34 | 2005-08-17 12:38:22 -0700 | [diff] [blame] | 4158 | but should never be null here anyway */ |
| 4159 | pSMB->hdr.Mid = GetNextMid(ses->server); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4160 | pSMB->hdr.Tid = ses->ipc_tid; |
| 4161 | pSMB->hdr.Uid = ses->Suid; |
Steve French | 26f5736 | 2007-08-30 22:09:15 +0000 | [diff] [blame] | 4162 | if (ses->capabilities & CAP_STATUS32) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4163 | pSMB->hdr.Flags2 |= SMBFLG2_ERR_STATUS; |
Steve French | 26f5736 | 2007-08-30 22:09:15 +0000 | [diff] [blame] | 4164 | if (ses->capabilities & CAP_DFS) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4165 | pSMB->hdr.Flags2 |= SMBFLG2_DFS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4166 | |
| 4167 | if (ses->capabilities & CAP_UNICODE) { |
| 4168 | pSMB->hdr.Flags2 |= SMBFLG2_UNICODE; |
| 4169 | name_len = |
Steve French | b1a4569 | 2005-05-17 16:07:23 -0500 | [diff] [blame] | 4170 | cifsConvertToUCS((__le16 *) pSMB->RequestFileName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 4171 | searchName, PATH_MAX, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4172 | name_len++; /* trailing null */ |
| 4173 | name_len *= 2; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 4174 | } else { /* BB improve the check for buffer overruns BB */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4175 | name_len = strnlen(searchName, PATH_MAX); |
| 4176 | name_len++; /* trailing null */ |
| 4177 | strncpy(pSMB->RequestFileName, searchName, name_len); |
| 4178 | } |
| 4179 | |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 4180 | if (ses->server) { |
| 4181 | if (ses->server->secMode & |
Steve French | 1a4e15a | 2006-10-12 21:33:51 +0000 | [diff] [blame] | 4182 | (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) |
| 4183 | pSMB->hdr.Flags2 |= SMBFLG2_SECURITY_SIGNATURE; |
| 4184 | } |
| 4185 | |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 4186 | pSMB->hdr.Uid = ses->Suid; |
Steve French | 1a4e15a | 2006-10-12 21:33:51 +0000 | [diff] [blame] | 4187 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4188 | params = 2 /* level */ + name_len /*includes null */ ; |
| 4189 | pSMB->TotalDataCount = 0; |
| 4190 | pSMB->DataCount = 0; |
| 4191 | pSMB->DataOffset = 0; |
| 4192 | pSMB->MaxParameterCount = 0; |
Steve French | 582d21e | 2008-05-13 04:54:12 +0000 | [diff] [blame] | 4193 | /* BB find exact max SMB PDU from sess structure BB */ |
| 4194 | pSMB->MaxDataCount = cpu_to_le16(4000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4195 | pSMB->MaxSetupCount = 0; |
| 4196 | pSMB->Reserved = 0; |
| 4197 | pSMB->Flags = 0; |
| 4198 | pSMB->Timeout = 0; |
| 4199 | pSMB->Reserved2 = 0; |
| 4200 | pSMB->ParameterOffset = cpu_to_le16(offsetof( |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 4201 | struct smb_com_transaction2_get_dfs_refer_req, MaxReferralLevel) - 4); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4202 | pSMB->SetupCount = 1; |
| 4203 | pSMB->Reserved3 = 0; |
| 4204 | pSMB->SubCommand = cpu_to_le16(TRANS2_GET_DFS_REFERRAL); |
| 4205 | byte_count = params + 3 /* pad */ ; |
| 4206 | pSMB->ParameterCount = cpu_to_le16(params); |
| 4207 | pSMB->TotalParameterCount = pSMB->ParameterCount; |
| 4208 | pSMB->MaxReferralLevel = cpu_to_le16(3); |
| 4209 | pSMB->hdr.smb_buf_length += byte_count; |
| 4210 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 4211 | |
| 4212 | rc = SendReceive(xid, ses, (struct smb_hdr *) pSMB, |
| 4213 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 4214 | if (rc) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 4215 | cFYI(1, "Send error in GetDFSRefer = %d", rc); |
Steve French | c2cf07d | 2008-05-15 06:20:02 +0000 | [diff] [blame] | 4216 | goto GetDFSRefExit; |
| 4217 | } |
| 4218 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4219 | |
Steve French | c2cf07d | 2008-05-15 06:20:02 +0000 | [diff] [blame] | 4220 | /* BB Also check if enough total bytes returned? */ |
Igor Mammedov | fec4585 | 2008-05-16 13:06:30 +0400 | [diff] [blame] | 4221 | if (rc || (pSMBr->ByteCount < 17)) { |
Steve French | c2cf07d | 2008-05-15 06:20:02 +0000 | [diff] [blame] | 4222 | rc = -EIO; /* bad smb */ |
Igor Mammedov | fec4585 | 2008-05-16 13:06:30 +0400 | [diff] [blame] | 4223 | goto GetDFSRefExit; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4224 | } |
Igor Mammedov | fec4585 | 2008-05-16 13:06:30 +0400 | [diff] [blame] | 4225 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 4226 | cFYI(1, "Decoding GetDFSRefer response BCC: %d Offset %d", |
Igor Mammedov | fec4585 | 2008-05-16 13:06:30 +0400 | [diff] [blame] | 4227 | pSMBr->ByteCount, |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 4228 | le16_to_cpu(pSMBr->t2.DataOffset)); |
Igor Mammedov | fec4585 | 2008-05-16 13:06:30 +0400 | [diff] [blame] | 4229 | |
| 4230 | /* parse returned result into more usable form */ |
Steve French | a1fe78f | 2008-05-16 18:48:38 +0000 | [diff] [blame] | 4231 | rc = parse_DFS_referrals(pSMBr, num_of_nodes, |
Igor Mammedov | 2c55608 | 2008-10-23 13:58:42 +0400 | [diff] [blame] | 4232 | target_nodes, nls_codepage, remap, |
| 4233 | searchName); |
Igor Mammedov | fec4585 | 2008-05-16 13:06:30 +0400 | [diff] [blame] | 4234 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4235 | GetDFSRefExit: |
Steve French | 0d817bc | 2008-05-22 02:02:03 +0000 | [diff] [blame] | 4236 | cifs_buf_release(pSMB); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4237 | |
| 4238 | if (rc == -EAGAIN) |
| 4239 | goto getDFSRetry; |
| 4240 | |
| 4241 | return rc; |
| 4242 | } |
| 4243 | |
Steve French | 2096243 | 2005-09-21 22:05:57 -0700 | [diff] [blame] | 4244 | /* Query File System Info such as free space to old servers such as Win 9x */ |
| 4245 | int |
| 4246 | SMBOldQFSInfo(const int xid, struct cifsTconInfo *tcon, struct kstatfs *FSData) |
| 4247 | { |
| 4248 | /* level 0x01 SMB_QUERY_FILE_SYSTEM_INFO */ |
| 4249 | TRANSACTION2_QFSI_REQ *pSMB = NULL; |
| 4250 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; |
| 4251 | FILE_SYSTEM_ALLOC_INFO *response_data; |
| 4252 | int rc = 0; |
| 4253 | int bytes_returned = 0; |
| 4254 | __u16 params, byte_count; |
| 4255 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 4256 | cFYI(1, "OldQFSInfo"); |
Steve French | 2096243 | 2005-09-21 22:05:57 -0700 | [diff] [blame] | 4257 | oldQFSInfoRetry: |
| 4258 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 4259 | (void **) &pSMBr); |
| 4260 | if (rc) |
| 4261 | return rc; |
Steve French | 2096243 | 2005-09-21 22:05:57 -0700 | [diff] [blame] | 4262 | |
| 4263 | params = 2; /* level */ |
| 4264 | pSMB->TotalDataCount = 0; |
| 4265 | pSMB->MaxParameterCount = cpu_to_le16(2); |
| 4266 | pSMB->MaxDataCount = cpu_to_le16(1000); |
| 4267 | pSMB->MaxSetupCount = 0; |
| 4268 | pSMB->Reserved = 0; |
| 4269 | pSMB->Flags = 0; |
| 4270 | pSMB->Timeout = 0; |
| 4271 | pSMB->Reserved2 = 0; |
| 4272 | byte_count = params + 1 /* pad */ ; |
| 4273 | pSMB->TotalParameterCount = cpu_to_le16(params); |
| 4274 | pSMB->ParameterCount = pSMB->TotalParameterCount; |
| 4275 | pSMB->ParameterOffset = cpu_to_le16(offsetof( |
| 4276 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); |
| 4277 | pSMB->DataCount = 0; |
| 4278 | pSMB->DataOffset = 0; |
| 4279 | pSMB->SetupCount = 1; |
| 4280 | pSMB->Reserved3 = 0; |
| 4281 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); |
| 4282 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_ALLOCATION); |
| 4283 | pSMB->hdr.smb_buf_length += byte_count; |
| 4284 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 4285 | |
| 4286 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 4287 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 4288 | if (rc) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 4289 | cFYI(1, "Send error in QFSInfo = %d", rc); |
Steve French | 2096243 | 2005-09-21 22:05:57 -0700 | [diff] [blame] | 4290 | } else { /* decode response */ |
| 4291 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
| 4292 | |
| 4293 | if (rc || (pSMBr->ByteCount < 18)) |
| 4294 | rc = -EIO; /* bad smb */ |
| 4295 | else { |
| 4296 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 4297 | cFYI(1, "qfsinf resp BCC: %d Offset %d", |
| 4298 | pSMBr->ByteCount, data_offset); |
Steve French | 2096243 | 2005-09-21 22:05:57 -0700 | [diff] [blame] | 4299 | |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 4300 | response_data = (FILE_SYSTEM_ALLOC_INFO *) |
Steve French | 2096243 | 2005-09-21 22:05:57 -0700 | [diff] [blame] | 4301 | (((char *) &pSMBr->hdr.Protocol) + data_offset); |
| 4302 | FSData->f_bsize = |
| 4303 | le16_to_cpu(response_data->BytesPerSector) * |
| 4304 | le32_to_cpu(response_data-> |
| 4305 | SectorsPerAllocationUnit); |
| 4306 | FSData->f_blocks = |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 4307 | le32_to_cpu(response_data->TotalAllocationUnits); |
Steve French | 2096243 | 2005-09-21 22:05:57 -0700 | [diff] [blame] | 4308 | FSData->f_bfree = FSData->f_bavail = |
| 4309 | le32_to_cpu(response_data->FreeAllocationUnits); |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 4310 | cFYI(1, "Blocks: %lld Free: %lld Block size %ld", |
| 4311 | (unsigned long long)FSData->f_blocks, |
| 4312 | (unsigned long long)FSData->f_bfree, |
| 4313 | FSData->f_bsize); |
Steve French | 2096243 | 2005-09-21 22:05:57 -0700 | [diff] [blame] | 4314 | } |
| 4315 | } |
| 4316 | cifs_buf_release(pSMB); |
| 4317 | |
| 4318 | if (rc == -EAGAIN) |
| 4319 | goto oldQFSInfoRetry; |
| 4320 | |
| 4321 | return rc; |
| 4322 | } |
| 4323 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4324 | int |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 4325 | CIFSSMBQFSInfo(const int xid, struct cifsTconInfo *tcon, struct kstatfs *FSData) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4326 | { |
| 4327 | /* level 0x103 SMB_QUERY_FILE_SYSTEM_INFO */ |
| 4328 | TRANSACTION2_QFSI_REQ *pSMB = NULL; |
| 4329 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; |
| 4330 | FILE_SYSTEM_INFO *response_data; |
| 4331 | int rc = 0; |
| 4332 | int bytes_returned = 0; |
| 4333 | __u16 params, byte_count; |
| 4334 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 4335 | cFYI(1, "In QFSInfo"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4336 | QFSInfoRetry: |
| 4337 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 4338 | (void **) &pSMBr); |
| 4339 | if (rc) |
| 4340 | return rc; |
| 4341 | |
| 4342 | params = 2; /* level */ |
| 4343 | pSMB->TotalDataCount = 0; |
| 4344 | pSMB->MaxParameterCount = cpu_to_le16(2); |
Steve French | 2096243 | 2005-09-21 22:05:57 -0700 | [diff] [blame] | 4345 | pSMB->MaxDataCount = cpu_to_le16(1000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4346 | pSMB->MaxSetupCount = 0; |
| 4347 | pSMB->Reserved = 0; |
| 4348 | pSMB->Flags = 0; |
| 4349 | pSMB->Timeout = 0; |
| 4350 | pSMB->Reserved2 = 0; |
| 4351 | byte_count = params + 1 /* pad */ ; |
| 4352 | pSMB->TotalParameterCount = cpu_to_le16(params); |
| 4353 | pSMB->ParameterCount = pSMB->TotalParameterCount; |
| 4354 | pSMB->ParameterOffset = cpu_to_le16(offsetof( |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 4355 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4356 | pSMB->DataCount = 0; |
| 4357 | pSMB->DataOffset = 0; |
| 4358 | pSMB->SetupCount = 1; |
| 4359 | pSMB->Reserved3 = 0; |
| 4360 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); |
| 4361 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_SIZE_INFO); |
| 4362 | pSMB->hdr.smb_buf_length += byte_count; |
| 4363 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 4364 | |
| 4365 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 4366 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 4367 | if (rc) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 4368 | cFYI(1, "Send error in QFSInfo = %d", rc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4369 | } else { /* decode response */ |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 4370 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4371 | |
Steve French | 2096243 | 2005-09-21 22:05:57 -0700 | [diff] [blame] | 4372 | if (rc || (pSMBr->ByteCount < 24)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4373 | rc = -EIO; /* bad smb */ |
| 4374 | else { |
| 4375 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4376 | |
| 4377 | response_data = |
| 4378 | (FILE_SYSTEM_INFO |
| 4379 | *) (((char *) &pSMBr->hdr.Protocol) + |
| 4380 | data_offset); |
| 4381 | FSData->f_bsize = |
| 4382 | le32_to_cpu(response_data->BytesPerSector) * |
| 4383 | le32_to_cpu(response_data-> |
| 4384 | SectorsPerAllocationUnit); |
| 4385 | FSData->f_blocks = |
| 4386 | le64_to_cpu(response_data->TotalAllocationUnits); |
| 4387 | FSData->f_bfree = FSData->f_bavail = |
| 4388 | le64_to_cpu(response_data->FreeAllocationUnits); |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 4389 | cFYI(1, "Blocks: %lld Free: %lld Block size %ld", |
| 4390 | (unsigned long long)FSData->f_blocks, |
| 4391 | (unsigned long long)FSData->f_bfree, |
| 4392 | FSData->f_bsize); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4393 | } |
| 4394 | } |
| 4395 | cifs_buf_release(pSMB); |
| 4396 | |
| 4397 | if (rc == -EAGAIN) |
| 4398 | goto QFSInfoRetry; |
| 4399 | |
| 4400 | return rc; |
| 4401 | } |
| 4402 | |
| 4403 | int |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 4404 | CIFSSMBQFSAttributeInfo(const int xid, struct cifsTconInfo *tcon) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4405 | { |
| 4406 | /* level 0x105 SMB_QUERY_FILE_SYSTEM_INFO */ |
| 4407 | TRANSACTION2_QFSI_REQ *pSMB = NULL; |
| 4408 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; |
| 4409 | FILE_SYSTEM_ATTRIBUTE_INFO *response_data; |
| 4410 | int rc = 0; |
| 4411 | int bytes_returned = 0; |
| 4412 | __u16 params, byte_count; |
| 4413 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 4414 | cFYI(1, "In QFSAttributeInfo"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4415 | QFSAttributeRetry: |
| 4416 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 4417 | (void **) &pSMBr); |
| 4418 | if (rc) |
| 4419 | return rc; |
| 4420 | |
| 4421 | params = 2; /* level */ |
| 4422 | pSMB->TotalDataCount = 0; |
| 4423 | pSMB->MaxParameterCount = cpu_to_le16(2); |
Steve French | 582d21e | 2008-05-13 04:54:12 +0000 | [diff] [blame] | 4424 | /* BB find exact max SMB PDU from sess structure BB */ |
| 4425 | pSMB->MaxDataCount = cpu_to_le16(1000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4426 | pSMB->MaxSetupCount = 0; |
| 4427 | pSMB->Reserved = 0; |
| 4428 | pSMB->Flags = 0; |
| 4429 | pSMB->Timeout = 0; |
| 4430 | pSMB->Reserved2 = 0; |
| 4431 | byte_count = params + 1 /* pad */ ; |
| 4432 | pSMB->TotalParameterCount = cpu_to_le16(params); |
| 4433 | pSMB->ParameterCount = pSMB->TotalParameterCount; |
| 4434 | pSMB->ParameterOffset = cpu_to_le16(offsetof( |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 4435 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4436 | pSMB->DataCount = 0; |
| 4437 | pSMB->DataOffset = 0; |
| 4438 | pSMB->SetupCount = 1; |
| 4439 | pSMB->Reserved3 = 0; |
| 4440 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); |
| 4441 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_ATTRIBUTE_INFO); |
| 4442 | pSMB->hdr.smb_buf_length += byte_count; |
| 4443 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 4444 | |
| 4445 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 4446 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 4447 | if (rc) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 4448 | cERROR(1, "Send error in QFSAttributeInfo = %d", rc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4449 | } else { /* decode response */ |
| 4450 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
| 4451 | |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 4452 | if (rc || (pSMBr->ByteCount < 13)) { |
| 4453 | /* BB also check if enough bytes returned */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4454 | rc = -EIO; /* bad smb */ |
| 4455 | } else { |
| 4456 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
| 4457 | response_data = |
| 4458 | (FILE_SYSTEM_ATTRIBUTE_INFO |
| 4459 | *) (((char *) &pSMBr->hdr.Protocol) + |
| 4460 | data_offset); |
| 4461 | memcpy(&tcon->fsAttrInfo, response_data, |
Steve French | 26f5736 | 2007-08-30 22:09:15 +0000 | [diff] [blame] | 4462 | sizeof(FILE_SYSTEM_ATTRIBUTE_INFO)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4463 | } |
| 4464 | } |
| 4465 | cifs_buf_release(pSMB); |
| 4466 | |
| 4467 | if (rc == -EAGAIN) |
| 4468 | goto QFSAttributeRetry; |
| 4469 | |
| 4470 | return rc; |
| 4471 | } |
| 4472 | |
| 4473 | int |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 4474 | CIFSSMBQFSDeviceInfo(const int xid, struct cifsTconInfo *tcon) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4475 | { |
| 4476 | /* level 0x104 SMB_QUERY_FILE_SYSTEM_INFO */ |
| 4477 | TRANSACTION2_QFSI_REQ *pSMB = NULL; |
| 4478 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; |
| 4479 | FILE_SYSTEM_DEVICE_INFO *response_data; |
| 4480 | int rc = 0; |
| 4481 | int bytes_returned = 0; |
| 4482 | __u16 params, byte_count; |
| 4483 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 4484 | cFYI(1, "In QFSDeviceInfo"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4485 | QFSDeviceRetry: |
| 4486 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 4487 | (void **) &pSMBr); |
| 4488 | if (rc) |
| 4489 | return rc; |
| 4490 | |
| 4491 | params = 2; /* level */ |
| 4492 | pSMB->TotalDataCount = 0; |
| 4493 | pSMB->MaxParameterCount = cpu_to_le16(2); |
Steve French | 582d21e | 2008-05-13 04:54:12 +0000 | [diff] [blame] | 4494 | /* BB find exact max SMB PDU from sess structure BB */ |
| 4495 | pSMB->MaxDataCount = cpu_to_le16(1000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4496 | pSMB->MaxSetupCount = 0; |
| 4497 | pSMB->Reserved = 0; |
| 4498 | pSMB->Flags = 0; |
| 4499 | pSMB->Timeout = 0; |
| 4500 | pSMB->Reserved2 = 0; |
| 4501 | byte_count = params + 1 /* pad */ ; |
| 4502 | pSMB->TotalParameterCount = cpu_to_le16(params); |
| 4503 | pSMB->ParameterCount = pSMB->TotalParameterCount; |
| 4504 | pSMB->ParameterOffset = cpu_to_le16(offsetof( |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 4505 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4506 | |
| 4507 | pSMB->DataCount = 0; |
| 4508 | pSMB->DataOffset = 0; |
| 4509 | pSMB->SetupCount = 1; |
| 4510 | pSMB->Reserved3 = 0; |
| 4511 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); |
| 4512 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_DEVICE_INFO); |
| 4513 | pSMB->hdr.smb_buf_length += byte_count; |
| 4514 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 4515 | |
| 4516 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 4517 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 4518 | if (rc) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 4519 | cFYI(1, "Send error in QFSDeviceInfo = %d", rc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4520 | } else { /* decode response */ |
| 4521 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
| 4522 | |
Steve French | 630f3f0c | 2007-10-25 21:17:17 +0000 | [diff] [blame] | 4523 | if (rc || (pSMBr->ByteCount < sizeof(FILE_SYSTEM_DEVICE_INFO))) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4524 | rc = -EIO; /* bad smb */ |
| 4525 | else { |
| 4526 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
| 4527 | response_data = |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 4528 | (FILE_SYSTEM_DEVICE_INFO *) |
| 4529 | (((char *) &pSMBr->hdr.Protocol) + |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4530 | data_offset); |
| 4531 | memcpy(&tcon->fsDevInfo, response_data, |
Steve French | 26f5736 | 2007-08-30 22:09:15 +0000 | [diff] [blame] | 4532 | sizeof(FILE_SYSTEM_DEVICE_INFO)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4533 | } |
| 4534 | } |
| 4535 | cifs_buf_release(pSMB); |
| 4536 | |
| 4537 | if (rc == -EAGAIN) |
| 4538 | goto QFSDeviceRetry; |
| 4539 | |
| 4540 | return rc; |
| 4541 | } |
| 4542 | |
| 4543 | int |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 4544 | CIFSSMBQFSUnixInfo(const int xid, struct cifsTconInfo *tcon) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4545 | { |
| 4546 | /* level 0x200 SMB_QUERY_CIFS_UNIX_INFO */ |
| 4547 | TRANSACTION2_QFSI_REQ *pSMB = NULL; |
| 4548 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; |
| 4549 | FILE_SYSTEM_UNIX_INFO *response_data; |
| 4550 | int rc = 0; |
| 4551 | int bytes_returned = 0; |
| 4552 | __u16 params, byte_count; |
| 4553 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 4554 | cFYI(1, "In QFSUnixInfo"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4555 | QFSUnixRetry: |
Jeff Layton | f569599 | 2010-09-29 15:27:08 -0400 | [diff] [blame] | 4556 | rc = smb_init_no_reconnect(SMB_COM_TRANSACTION2, 15, tcon, |
| 4557 | (void **) &pSMB, (void **) &pSMBr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4558 | if (rc) |
| 4559 | return rc; |
| 4560 | |
| 4561 | params = 2; /* level */ |
| 4562 | pSMB->TotalDataCount = 0; |
| 4563 | pSMB->DataCount = 0; |
| 4564 | pSMB->DataOffset = 0; |
| 4565 | pSMB->MaxParameterCount = cpu_to_le16(2); |
Steve French | 582d21e | 2008-05-13 04:54:12 +0000 | [diff] [blame] | 4566 | /* BB find exact max SMB PDU from sess structure BB */ |
| 4567 | pSMB->MaxDataCount = cpu_to_le16(100); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4568 | pSMB->MaxSetupCount = 0; |
| 4569 | pSMB->Reserved = 0; |
| 4570 | pSMB->Flags = 0; |
| 4571 | pSMB->Timeout = 0; |
| 4572 | pSMB->Reserved2 = 0; |
| 4573 | byte_count = params + 1 /* pad */ ; |
| 4574 | pSMB->ParameterCount = cpu_to_le16(params); |
| 4575 | pSMB->TotalParameterCount = pSMB->ParameterCount; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 4576 | pSMB->ParameterOffset = cpu_to_le16(offsetof(struct |
| 4577 | smb_com_transaction2_qfsi_req, InformationLevel) - 4); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4578 | pSMB->SetupCount = 1; |
| 4579 | pSMB->Reserved3 = 0; |
| 4580 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); |
| 4581 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_CIFS_UNIX_INFO); |
| 4582 | pSMB->hdr.smb_buf_length += byte_count; |
| 4583 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 4584 | |
| 4585 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 4586 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 4587 | if (rc) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 4588 | cERROR(1, "Send error in QFSUnixInfo = %d", rc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4589 | } else { /* decode response */ |
| 4590 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
| 4591 | |
| 4592 | if (rc || (pSMBr->ByteCount < 13)) { |
| 4593 | rc = -EIO; /* bad smb */ |
| 4594 | } else { |
| 4595 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
| 4596 | response_data = |
| 4597 | (FILE_SYSTEM_UNIX_INFO |
| 4598 | *) (((char *) &pSMBr->hdr.Protocol) + |
| 4599 | data_offset); |
| 4600 | memcpy(&tcon->fsUnixInfo, response_data, |
Steve French | 26f5736 | 2007-08-30 22:09:15 +0000 | [diff] [blame] | 4601 | sizeof(FILE_SYSTEM_UNIX_INFO)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4602 | } |
| 4603 | } |
| 4604 | cifs_buf_release(pSMB); |
| 4605 | |
| 4606 | if (rc == -EAGAIN) |
| 4607 | goto QFSUnixRetry; |
| 4608 | |
| 4609 | |
| 4610 | return rc; |
| 4611 | } |
| 4612 | |
Jeremy Allison | ac67055 | 2005-06-22 17:26:35 -0700 | [diff] [blame] | 4613 | int |
Steve French | 45abc6e | 2005-06-23 13:42:03 -0500 | [diff] [blame] | 4614 | CIFSSMBSetFSUnixInfo(const int xid, struct cifsTconInfo *tcon, __u64 cap) |
Jeremy Allison | ac67055 | 2005-06-22 17:26:35 -0700 | [diff] [blame] | 4615 | { |
| 4616 | /* level 0x200 SMB_SET_CIFS_UNIX_INFO */ |
| 4617 | TRANSACTION2_SETFSI_REQ *pSMB = NULL; |
| 4618 | TRANSACTION2_SETFSI_RSP *pSMBr = NULL; |
| 4619 | int rc = 0; |
| 4620 | int bytes_returned = 0; |
| 4621 | __u16 params, param_offset, offset, byte_count; |
| 4622 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 4623 | cFYI(1, "In SETFSUnixInfo"); |
Jeremy Allison | ac67055 | 2005-06-22 17:26:35 -0700 | [diff] [blame] | 4624 | SETFSUnixRetry: |
Steve French | f26282c | 2006-03-01 09:17:37 +0000 | [diff] [blame] | 4625 | /* BB switch to small buf init to save memory */ |
Jeff Layton | f569599 | 2010-09-29 15:27:08 -0400 | [diff] [blame] | 4626 | rc = smb_init_no_reconnect(SMB_COM_TRANSACTION2, 15, tcon, |
| 4627 | (void **) &pSMB, (void **) &pSMBr); |
Jeremy Allison | ac67055 | 2005-06-22 17:26:35 -0700 | [diff] [blame] | 4628 | if (rc) |
| 4629 | return rc; |
| 4630 | |
| 4631 | params = 4; /* 2 bytes zero followed by info level. */ |
| 4632 | pSMB->MaxSetupCount = 0; |
| 4633 | pSMB->Reserved = 0; |
| 4634 | pSMB->Flags = 0; |
| 4635 | pSMB->Timeout = 0; |
| 4636 | pSMB->Reserved2 = 0; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 4637 | param_offset = offsetof(struct smb_com_transaction2_setfsi_req, FileNum) |
| 4638 | - 4; |
Jeremy Allison | ac67055 | 2005-06-22 17:26:35 -0700 | [diff] [blame] | 4639 | offset = param_offset + params; |
| 4640 | |
| 4641 | pSMB->MaxParameterCount = cpu_to_le16(4); |
Steve French | 582d21e | 2008-05-13 04:54:12 +0000 | [diff] [blame] | 4642 | /* BB find exact max SMB PDU from sess structure BB */ |
| 4643 | pSMB->MaxDataCount = cpu_to_le16(100); |
Jeremy Allison | ac67055 | 2005-06-22 17:26:35 -0700 | [diff] [blame] | 4644 | pSMB->SetupCount = 1; |
| 4645 | pSMB->Reserved3 = 0; |
| 4646 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FS_INFORMATION); |
| 4647 | byte_count = 1 /* pad */ + params + 12; |
| 4648 | |
| 4649 | pSMB->DataCount = cpu_to_le16(12); |
| 4650 | pSMB->ParameterCount = cpu_to_le16(params); |
| 4651 | pSMB->TotalDataCount = pSMB->DataCount; |
| 4652 | pSMB->TotalParameterCount = pSMB->ParameterCount; |
| 4653 | pSMB->ParameterOffset = cpu_to_le16(param_offset); |
| 4654 | pSMB->DataOffset = cpu_to_le16(offset); |
| 4655 | |
| 4656 | /* Params. */ |
| 4657 | pSMB->FileNum = 0; |
| 4658 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_CIFS_UNIX_INFO); |
| 4659 | |
| 4660 | /* Data. */ |
| 4661 | pSMB->ClientUnixMajor = cpu_to_le16(CIFS_UNIX_MAJOR_VERSION); |
| 4662 | pSMB->ClientUnixMinor = cpu_to_le16(CIFS_UNIX_MINOR_VERSION); |
| 4663 | pSMB->ClientUnixCap = cpu_to_le64(cap); |
| 4664 | |
| 4665 | pSMB->hdr.smb_buf_length += byte_count; |
| 4666 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 4667 | |
| 4668 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 4669 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 4670 | if (rc) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 4671 | cERROR(1, "Send error in SETFSUnixInfo = %d", rc); |
Jeremy Allison | ac67055 | 2005-06-22 17:26:35 -0700 | [diff] [blame] | 4672 | } else { /* decode response */ |
| 4673 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 4674 | if (rc) |
Jeremy Allison | ac67055 | 2005-06-22 17:26:35 -0700 | [diff] [blame] | 4675 | rc = -EIO; /* bad smb */ |
Jeremy Allison | ac67055 | 2005-06-22 17:26:35 -0700 | [diff] [blame] | 4676 | } |
| 4677 | cifs_buf_release(pSMB); |
| 4678 | |
| 4679 | if (rc == -EAGAIN) |
| 4680 | goto SETFSUnixRetry; |
| 4681 | |
| 4682 | return rc; |
| 4683 | } |
| 4684 | |
| 4685 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4686 | |
| 4687 | int |
| 4688 | CIFSSMBQFSPosixInfo(const int xid, struct cifsTconInfo *tcon, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 4689 | struct kstatfs *FSData) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4690 | { |
| 4691 | /* level 0x201 SMB_QUERY_CIFS_POSIX_INFO */ |
| 4692 | TRANSACTION2_QFSI_REQ *pSMB = NULL; |
| 4693 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; |
| 4694 | FILE_SYSTEM_POSIX_INFO *response_data; |
| 4695 | int rc = 0; |
| 4696 | int bytes_returned = 0; |
| 4697 | __u16 params, byte_count; |
| 4698 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 4699 | cFYI(1, "In QFSPosixInfo"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4700 | QFSPosixRetry: |
| 4701 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 4702 | (void **) &pSMBr); |
| 4703 | if (rc) |
| 4704 | return rc; |
| 4705 | |
| 4706 | params = 2; /* level */ |
| 4707 | pSMB->TotalDataCount = 0; |
| 4708 | pSMB->DataCount = 0; |
| 4709 | pSMB->DataOffset = 0; |
| 4710 | pSMB->MaxParameterCount = cpu_to_le16(2); |
Steve French | 582d21e | 2008-05-13 04:54:12 +0000 | [diff] [blame] | 4711 | /* BB find exact max SMB PDU from sess structure BB */ |
| 4712 | pSMB->MaxDataCount = cpu_to_le16(100); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4713 | pSMB->MaxSetupCount = 0; |
| 4714 | pSMB->Reserved = 0; |
| 4715 | pSMB->Flags = 0; |
| 4716 | pSMB->Timeout = 0; |
| 4717 | pSMB->Reserved2 = 0; |
| 4718 | byte_count = params + 1 /* pad */ ; |
| 4719 | pSMB->ParameterCount = cpu_to_le16(params); |
| 4720 | pSMB->TotalParameterCount = pSMB->ParameterCount; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 4721 | pSMB->ParameterOffset = cpu_to_le16(offsetof(struct |
| 4722 | smb_com_transaction2_qfsi_req, InformationLevel) - 4); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4723 | pSMB->SetupCount = 1; |
| 4724 | pSMB->Reserved3 = 0; |
| 4725 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); |
| 4726 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_POSIX_FS_INFO); |
| 4727 | pSMB->hdr.smb_buf_length += byte_count; |
| 4728 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 4729 | |
| 4730 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 4731 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 4732 | if (rc) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 4733 | cFYI(1, "Send error in QFSUnixInfo = %d", rc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4734 | } else { /* decode response */ |
| 4735 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
| 4736 | |
| 4737 | if (rc || (pSMBr->ByteCount < 13)) { |
| 4738 | rc = -EIO; /* bad smb */ |
| 4739 | } else { |
| 4740 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
| 4741 | response_data = |
| 4742 | (FILE_SYSTEM_POSIX_INFO |
| 4743 | *) (((char *) &pSMBr->hdr.Protocol) + |
| 4744 | data_offset); |
| 4745 | FSData->f_bsize = |
| 4746 | le32_to_cpu(response_data->BlockSize); |
| 4747 | FSData->f_blocks = |
| 4748 | le64_to_cpu(response_data->TotalBlocks); |
| 4749 | FSData->f_bfree = |
| 4750 | le64_to_cpu(response_data->BlocksAvail); |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 4751 | if (response_data->UserBlocksAvail == cpu_to_le64(-1)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4752 | FSData->f_bavail = FSData->f_bfree; |
| 4753 | } else { |
| 4754 | FSData->f_bavail = |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 4755 | le64_to_cpu(response_data->UserBlocksAvail); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4756 | } |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 4757 | if (response_data->TotalFileNodes != cpu_to_le64(-1)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4758 | FSData->f_files = |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 4759 | le64_to_cpu(response_data->TotalFileNodes); |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 4760 | if (response_data->FreeFileNodes != cpu_to_le64(-1)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4761 | FSData->f_ffree = |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 4762 | le64_to_cpu(response_data->FreeFileNodes); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4763 | } |
| 4764 | } |
| 4765 | cifs_buf_release(pSMB); |
| 4766 | |
| 4767 | if (rc == -EAGAIN) |
| 4768 | goto QFSPosixRetry; |
| 4769 | |
| 4770 | return rc; |
| 4771 | } |
| 4772 | |
| 4773 | |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 4774 | /* We can not use write of zero bytes trick to |
| 4775 | set file size due to need for large file support. Also note that |
| 4776 | this SetPathInfo is preferred to SetFileInfo based method in next |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4777 | routine which is only needed to work around a sharing violation bug |
| 4778 | in Samba which this routine can run into */ |
| 4779 | |
| 4780 | int |
| 4781 | CIFSSMBSetEOF(const int xid, struct cifsTconInfo *tcon, const char *fileName, |
Steve French | 4b18f2a | 2008-04-29 00:06:05 +0000 | [diff] [blame] | 4782 | __u64 size, bool SetAllocation, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 4783 | const struct nls_table *nls_codepage, int remap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4784 | { |
| 4785 | struct smb_com_transaction2_spi_req *pSMB = NULL; |
| 4786 | struct smb_com_transaction2_spi_rsp *pSMBr = NULL; |
| 4787 | struct file_end_of_file_info *parm_data; |
| 4788 | int name_len; |
| 4789 | int rc = 0; |
| 4790 | int bytes_returned = 0; |
| 4791 | __u16 params, byte_count, data_count, param_offset, offset; |
| 4792 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 4793 | cFYI(1, "In SetEOF"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4794 | SetEOFRetry: |
| 4795 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 4796 | (void **) &pSMBr); |
| 4797 | if (rc) |
| 4798 | return rc; |
| 4799 | |
| 4800 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 4801 | name_len = |
Steve French | b1a4569 | 2005-05-17 16:07:23 -0500 | [diff] [blame] | 4802 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 4803 | PATH_MAX, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4804 | name_len++; /* trailing null */ |
| 4805 | name_len *= 2; |
Steve French | 3e87d80 | 2005-09-18 20:49:21 -0700 | [diff] [blame] | 4806 | } else { /* BB improve the check for buffer overruns BB */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4807 | name_len = strnlen(fileName, PATH_MAX); |
| 4808 | name_len++; /* trailing null */ |
| 4809 | strncpy(pSMB->FileName, fileName, name_len); |
| 4810 | } |
| 4811 | params = 6 + name_len; |
Steve French | 26f5736 | 2007-08-30 22:09:15 +0000 | [diff] [blame] | 4812 | data_count = sizeof(struct file_end_of_file_info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4813 | pSMB->MaxParameterCount = cpu_to_le16(2); |
Steve French | 3e87d80 | 2005-09-18 20:49:21 -0700 | [diff] [blame] | 4814 | pSMB->MaxDataCount = cpu_to_le16(4100); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4815 | pSMB->MaxSetupCount = 0; |
| 4816 | pSMB->Reserved = 0; |
| 4817 | pSMB->Flags = 0; |
| 4818 | pSMB->Timeout = 0; |
| 4819 | pSMB->Reserved2 = 0; |
| 4820 | param_offset = offsetof(struct smb_com_transaction2_spi_req, |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 4821 | InformationLevel) - 4; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4822 | offset = param_offset + params; |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 4823 | if (SetAllocation) { |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 4824 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
| 4825 | pSMB->InformationLevel = |
| 4826 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO2); |
| 4827 | else |
| 4828 | pSMB->InformationLevel = |
| 4829 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO); |
| 4830 | } else /* Set File Size */ { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4831 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
| 4832 | pSMB->InformationLevel = |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 4833 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4834 | else |
| 4835 | pSMB->InformationLevel = |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 4836 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4837 | } |
| 4838 | |
| 4839 | parm_data = |
| 4840 | (struct file_end_of_file_info *) (((char *) &pSMB->hdr.Protocol) + |
| 4841 | offset); |
| 4842 | pSMB->ParameterOffset = cpu_to_le16(param_offset); |
| 4843 | pSMB->DataOffset = cpu_to_le16(offset); |
| 4844 | pSMB->SetupCount = 1; |
| 4845 | pSMB->Reserved3 = 0; |
| 4846 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); |
| 4847 | byte_count = 3 /* pad */ + params + data_count; |
| 4848 | pSMB->DataCount = cpu_to_le16(data_count); |
| 4849 | pSMB->TotalDataCount = pSMB->DataCount; |
| 4850 | pSMB->ParameterCount = cpu_to_le16(params); |
| 4851 | pSMB->TotalParameterCount = pSMB->ParameterCount; |
| 4852 | pSMB->Reserved4 = 0; |
| 4853 | pSMB->hdr.smb_buf_length += byte_count; |
| 4854 | parm_data->FileSize = cpu_to_le64(size); |
| 4855 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 4856 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 4857 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 4858 | if (rc) |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 4859 | cFYI(1, "SetPathInfo (file size) returned %d", rc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4860 | |
| 4861 | cifs_buf_release(pSMB); |
| 4862 | |
| 4863 | if (rc == -EAGAIN) |
| 4864 | goto SetEOFRetry; |
| 4865 | |
| 4866 | return rc; |
| 4867 | } |
| 4868 | |
| 4869 | int |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 4870 | CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon, __u64 size, |
Steve French | 4b18f2a | 2008-04-29 00:06:05 +0000 | [diff] [blame] | 4871 | __u16 fid, __u32 pid_of_opener, bool SetAllocation) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4872 | { |
| 4873 | struct smb_com_transaction2_sfi_req *pSMB = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4874 | char *data_offset; |
| 4875 | struct file_end_of_file_info *parm_data; |
| 4876 | int rc = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4877 | __u16 params, param_offset, offset, byte_count, count; |
| 4878 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 4879 | cFYI(1, "SetFileSize (via SetFileInfo) %lld", |
| 4880 | (long long)size); |
Steve French | cd63499 | 2005-04-28 22:41:10 -0700 | [diff] [blame] | 4881 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
| 4882 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4883 | if (rc) |
| 4884 | return rc; |
| 4885 | |
| 4886 | pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener); |
| 4887 | pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16)); |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 4888 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4889 | params = 6; |
| 4890 | pSMB->MaxSetupCount = 0; |
| 4891 | pSMB->Reserved = 0; |
| 4892 | pSMB->Flags = 0; |
| 4893 | pSMB->Timeout = 0; |
| 4894 | pSMB->Reserved2 = 0; |
| 4895 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; |
| 4896 | offset = param_offset + params; |
| 4897 | |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 4898 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4899 | |
| 4900 | count = sizeof(struct file_end_of_file_info); |
| 4901 | pSMB->MaxParameterCount = cpu_to_le16(2); |
Steve French | 582d21e | 2008-05-13 04:54:12 +0000 | [diff] [blame] | 4902 | /* BB find exact max SMB PDU from sess structure BB */ |
| 4903 | pSMB->MaxDataCount = cpu_to_le16(1000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4904 | pSMB->SetupCount = 1; |
| 4905 | pSMB->Reserved3 = 0; |
| 4906 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); |
| 4907 | byte_count = 3 /* pad */ + params + count; |
| 4908 | pSMB->DataCount = cpu_to_le16(count); |
| 4909 | pSMB->ParameterCount = cpu_to_le16(params); |
| 4910 | pSMB->TotalDataCount = pSMB->DataCount; |
| 4911 | pSMB->TotalParameterCount = pSMB->ParameterCount; |
| 4912 | pSMB->ParameterOffset = cpu_to_le16(param_offset); |
| 4913 | parm_data = |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 4914 | (struct file_end_of_file_info *) (((char *) &pSMB->hdr.Protocol) |
| 4915 | + offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4916 | pSMB->DataOffset = cpu_to_le16(offset); |
| 4917 | parm_data->FileSize = cpu_to_le64(size); |
| 4918 | pSMB->Fid = fid; |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 4919 | if (SetAllocation) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4920 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
| 4921 | pSMB->InformationLevel = |
| 4922 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO2); |
| 4923 | else |
| 4924 | pSMB->InformationLevel = |
| 4925 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO); |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 4926 | } else /* Set File Size */ { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4927 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
| 4928 | pSMB->InformationLevel = |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 4929 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4930 | else |
| 4931 | pSMB->InformationLevel = |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 4932 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4933 | } |
| 4934 | pSMB->Reserved4 = 0; |
| 4935 | pSMB->hdr.smb_buf_length += byte_count; |
| 4936 | pSMB->ByteCount = cpu_to_le16(byte_count); |
Steve French | 133672e | 2007-11-13 22:41:37 +0000 | [diff] [blame] | 4937 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4938 | if (rc) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 4939 | cFYI(1, "Send error in SetFileInfo (SetFileSize) = %d", rc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4940 | } |
| 4941 | |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 4942 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4943 | since file handle passed in no longer valid */ |
| 4944 | |
| 4945 | return rc; |
| 4946 | } |
| 4947 | |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 4948 | /* Some legacy servers such as NT4 require that the file times be set on |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4949 | an open handle, rather than by pathname - this is awkward due to |
| 4950 | potential access conflicts on the open, but it is unavoidable for these |
| 4951 | old servers since the only other choice is to go from 100 nanosecond DCE |
| 4952 | time and resort to the original setpathinfo level which takes the ancient |
| 4953 | DOS time format with 2 second granularity */ |
| 4954 | int |
Jeff Layton | 2dd2dfa | 2008-08-02 07:26:12 -0400 | [diff] [blame] | 4955 | CIFSSMBSetFileInfo(const int xid, struct cifsTconInfo *tcon, |
| 4956 | const FILE_BASIC_INFO *data, __u16 fid, __u32 pid_of_opener) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4957 | { |
| 4958 | struct smb_com_transaction2_sfi_req *pSMB = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4959 | char *data_offset; |
| 4960 | int rc = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4961 | __u16 params, param_offset, offset, byte_count, count; |
| 4962 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 4963 | cFYI(1, "Set Times (via SetFileInfo)"); |
Steve French | cd63499 | 2005-04-28 22:41:10 -0700 | [diff] [blame] | 4964 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
| 4965 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4966 | if (rc) |
| 4967 | return rc; |
| 4968 | |
Jeff Layton | 2dd2dfa | 2008-08-02 07:26:12 -0400 | [diff] [blame] | 4969 | pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener); |
| 4970 | pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16)); |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 4971 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4972 | params = 6; |
| 4973 | pSMB->MaxSetupCount = 0; |
| 4974 | pSMB->Reserved = 0; |
| 4975 | pSMB->Flags = 0; |
| 4976 | pSMB->Timeout = 0; |
| 4977 | pSMB->Reserved2 = 0; |
| 4978 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; |
| 4979 | offset = param_offset + params; |
| 4980 | |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 4981 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4982 | |
Steve French | 26f5736 | 2007-08-30 22:09:15 +0000 | [diff] [blame] | 4983 | count = sizeof(FILE_BASIC_INFO); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4984 | pSMB->MaxParameterCount = cpu_to_le16(2); |
Steve French | 582d21e | 2008-05-13 04:54:12 +0000 | [diff] [blame] | 4985 | /* BB find max SMB PDU from sess */ |
| 4986 | pSMB->MaxDataCount = cpu_to_le16(1000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4987 | pSMB->SetupCount = 1; |
| 4988 | pSMB->Reserved3 = 0; |
| 4989 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); |
| 4990 | byte_count = 3 /* pad */ + params + count; |
| 4991 | pSMB->DataCount = cpu_to_le16(count); |
| 4992 | pSMB->ParameterCount = cpu_to_le16(params); |
| 4993 | pSMB->TotalDataCount = pSMB->DataCount; |
| 4994 | pSMB->TotalParameterCount = pSMB->ParameterCount; |
| 4995 | pSMB->ParameterOffset = cpu_to_le16(param_offset); |
| 4996 | pSMB->DataOffset = cpu_to_le16(offset); |
| 4997 | pSMB->Fid = fid; |
| 4998 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
| 4999 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO2); |
| 5000 | else |
| 5001 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO); |
| 5002 | pSMB->Reserved4 = 0; |
| 5003 | pSMB->hdr.smb_buf_length += byte_count; |
| 5004 | pSMB->ByteCount = cpu_to_le16(byte_count); |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 5005 | memcpy(data_offset, data, sizeof(FILE_BASIC_INFO)); |
Steve French | 133672e | 2007-11-13 22:41:37 +0000 | [diff] [blame] | 5006 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 5007 | if (rc) |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 5008 | cFYI(1, "Send error in Set Time (SetFileInfo) = %d", rc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5009 | |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 5010 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5011 | since file handle passed in no longer valid */ |
| 5012 | |
| 5013 | return rc; |
| 5014 | } |
| 5015 | |
Jeff Layton | 6d22f09 | 2008-09-23 11:48:35 -0400 | [diff] [blame] | 5016 | int |
| 5017 | CIFSSMBSetFileDisposition(const int xid, struct cifsTconInfo *tcon, |
| 5018 | bool delete_file, __u16 fid, __u32 pid_of_opener) |
| 5019 | { |
| 5020 | struct smb_com_transaction2_sfi_req *pSMB = NULL; |
| 5021 | char *data_offset; |
| 5022 | int rc = 0; |
| 5023 | __u16 params, param_offset, offset, byte_count, count; |
| 5024 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 5025 | cFYI(1, "Set File Disposition (via SetFileInfo)"); |
Jeff Layton | 6d22f09 | 2008-09-23 11:48:35 -0400 | [diff] [blame] | 5026 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
| 5027 | |
| 5028 | if (rc) |
| 5029 | return rc; |
| 5030 | |
| 5031 | pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener); |
| 5032 | pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16)); |
| 5033 | |
| 5034 | params = 6; |
| 5035 | pSMB->MaxSetupCount = 0; |
| 5036 | pSMB->Reserved = 0; |
| 5037 | pSMB->Flags = 0; |
| 5038 | pSMB->Timeout = 0; |
| 5039 | pSMB->Reserved2 = 0; |
| 5040 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; |
| 5041 | offset = param_offset + params; |
| 5042 | |
| 5043 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; |
| 5044 | |
| 5045 | count = 1; |
| 5046 | pSMB->MaxParameterCount = cpu_to_le16(2); |
| 5047 | /* BB find max SMB PDU from sess */ |
| 5048 | pSMB->MaxDataCount = cpu_to_le16(1000); |
| 5049 | pSMB->SetupCount = 1; |
| 5050 | pSMB->Reserved3 = 0; |
| 5051 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); |
| 5052 | byte_count = 3 /* pad */ + params + count; |
| 5053 | pSMB->DataCount = cpu_to_le16(count); |
| 5054 | pSMB->ParameterCount = cpu_to_le16(params); |
| 5055 | pSMB->TotalDataCount = pSMB->DataCount; |
| 5056 | pSMB->TotalParameterCount = pSMB->ParameterCount; |
| 5057 | pSMB->ParameterOffset = cpu_to_le16(param_offset); |
| 5058 | pSMB->DataOffset = cpu_to_le16(offset); |
| 5059 | pSMB->Fid = fid; |
| 5060 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_DISPOSITION_INFO); |
| 5061 | pSMB->Reserved4 = 0; |
| 5062 | pSMB->hdr.smb_buf_length += byte_count; |
| 5063 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 5064 | *data_offset = delete_file ? 1 : 0; |
| 5065 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); |
| 5066 | if (rc) |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 5067 | cFYI(1, "Send error in SetFileDisposition = %d", rc); |
Jeff Layton | 6d22f09 | 2008-09-23 11:48:35 -0400 | [diff] [blame] | 5068 | |
| 5069 | return rc; |
| 5070 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5071 | |
| 5072 | int |
Jeff Layton | 6fc000e | 2008-08-02 07:26:12 -0400 | [diff] [blame] | 5073 | CIFSSMBSetPathInfo(const int xid, struct cifsTconInfo *tcon, |
| 5074 | const char *fileName, const FILE_BASIC_INFO *data, |
| 5075 | const struct nls_table *nls_codepage, int remap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5076 | { |
| 5077 | TRANSACTION2_SPI_REQ *pSMB = NULL; |
| 5078 | TRANSACTION2_SPI_RSP *pSMBr = NULL; |
| 5079 | int name_len; |
| 5080 | int rc = 0; |
| 5081 | int bytes_returned = 0; |
| 5082 | char *data_offset; |
| 5083 | __u16 params, param_offset, offset, byte_count, count; |
| 5084 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 5085 | cFYI(1, "In SetTimes"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5086 | |
| 5087 | SetTimesRetry: |
| 5088 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 5089 | (void **) &pSMBr); |
| 5090 | if (rc) |
| 5091 | return rc; |
| 5092 | |
| 5093 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 5094 | name_len = |
Steve French | b1a4569 | 2005-05-17 16:07:23 -0500 | [diff] [blame] | 5095 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 5096 | PATH_MAX, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5097 | name_len++; /* trailing null */ |
| 5098 | name_len *= 2; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 5099 | } else { /* BB improve the check for buffer overruns BB */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5100 | name_len = strnlen(fileName, PATH_MAX); |
| 5101 | name_len++; /* trailing null */ |
| 5102 | strncpy(pSMB->FileName, fileName, name_len); |
| 5103 | } |
| 5104 | |
| 5105 | params = 6 + name_len; |
Steve French | 26f5736 | 2007-08-30 22:09:15 +0000 | [diff] [blame] | 5106 | count = sizeof(FILE_BASIC_INFO); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5107 | pSMB->MaxParameterCount = cpu_to_le16(2); |
Steve French | 582d21e | 2008-05-13 04:54:12 +0000 | [diff] [blame] | 5108 | /* BB find max SMB PDU from sess structure BB */ |
| 5109 | pSMB->MaxDataCount = cpu_to_le16(1000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5110 | pSMB->MaxSetupCount = 0; |
| 5111 | pSMB->Reserved = 0; |
| 5112 | pSMB->Flags = 0; |
| 5113 | pSMB->Timeout = 0; |
| 5114 | pSMB->Reserved2 = 0; |
| 5115 | param_offset = offsetof(struct smb_com_transaction2_spi_req, |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 5116 | InformationLevel) - 4; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5117 | offset = param_offset + params; |
| 5118 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; |
| 5119 | pSMB->ParameterOffset = cpu_to_le16(param_offset); |
| 5120 | pSMB->DataOffset = cpu_to_le16(offset); |
| 5121 | pSMB->SetupCount = 1; |
| 5122 | pSMB->Reserved3 = 0; |
| 5123 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); |
| 5124 | byte_count = 3 /* pad */ + params + count; |
| 5125 | |
| 5126 | pSMB->DataCount = cpu_to_le16(count); |
| 5127 | pSMB->ParameterCount = cpu_to_le16(params); |
| 5128 | pSMB->TotalDataCount = pSMB->DataCount; |
| 5129 | pSMB->TotalParameterCount = pSMB->ParameterCount; |
| 5130 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
| 5131 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO2); |
| 5132 | else |
| 5133 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO); |
| 5134 | pSMB->Reserved4 = 0; |
| 5135 | pSMB->hdr.smb_buf_length += byte_count; |
Steve French | 26f5736 | 2007-08-30 22:09:15 +0000 | [diff] [blame] | 5136 | memcpy(data_offset, data, sizeof(FILE_BASIC_INFO)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5137 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 5138 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 5139 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 5140 | if (rc) |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 5141 | cFYI(1, "SetPathInfo (times) returned %d", rc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5142 | |
| 5143 | cifs_buf_release(pSMB); |
| 5144 | |
| 5145 | if (rc == -EAGAIN) |
| 5146 | goto SetTimesRetry; |
| 5147 | |
| 5148 | return rc; |
| 5149 | } |
| 5150 | |
| 5151 | /* Can not be used to set time stamps yet (due to old DOS time format) */ |
| 5152 | /* Can be used to set attributes */ |
| 5153 | #if 0 /* Possibly not needed - since it turns out that strangely NT4 has a bug |
| 5154 | handling it anyway and NT4 was what we thought it would be needed for |
| 5155 | Do not delete it until we prove whether needed for Win9x though */ |
| 5156 | int |
| 5157 | CIFSSMBSetAttrLegacy(int xid, struct cifsTconInfo *tcon, char *fileName, |
| 5158 | __u16 dos_attrs, const struct nls_table *nls_codepage) |
| 5159 | { |
| 5160 | SETATTR_REQ *pSMB = NULL; |
| 5161 | SETATTR_RSP *pSMBr = NULL; |
| 5162 | int rc = 0; |
| 5163 | int bytes_returned; |
| 5164 | int name_len; |
| 5165 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 5166 | cFYI(1, "In SetAttrLegacy"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5167 | |
| 5168 | SetAttrLgcyRetry: |
| 5169 | rc = smb_init(SMB_COM_SETATTR, 8, tcon, (void **) &pSMB, |
| 5170 | (void **) &pSMBr); |
| 5171 | if (rc) |
| 5172 | return rc; |
| 5173 | |
| 5174 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 5175 | name_len = |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 5176 | ConvertToUCS((__le16 *) pSMB->fileName, fileName, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5177 | PATH_MAX, nls_codepage); |
| 5178 | name_len++; /* trailing null */ |
| 5179 | name_len *= 2; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 5180 | } else { /* BB improve the check for buffer overruns BB */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5181 | name_len = strnlen(fileName, PATH_MAX); |
| 5182 | name_len++; /* trailing null */ |
| 5183 | strncpy(pSMB->fileName, fileName, name_len); |
| 5184 | } |
| 5185 | pSMB->attr = cpu_to_le16(dos_attrs); |
| 5186 | pSMB->BufferFormat = 0x04; |
| 5187 | pSMB->hdr.smb_buf_length += name_len + 1; |
| 5188 | pSMB->ByteCount = cpu_to_le16(name_len + 1); |
| 5189 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 5190 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 5191 | if (rc) |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 5192 | cFYI(1, "Error in LegacySetAttr = %d", rc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5193 | |
| 5194 | cifs_buf_release(pSMB); |
| 5195 | |
| 5196 | if (rc == -EAGAIN) |
| 5197 | goto SetAttrLgcyRetry; |
| 5198 | |
| 5199 | return rc; |
| 5200 | } |
| 5201 | #endif /* temporarily unneeded SetAttr legacy function */ |
| 5202 | |
Jeff Layton | 654cf14 | 2009-07-09 20:02:49 -0400 | [diff] [blame] | 5203 | static void |
| 5204 | cifs_fill_unix_set_info(FILE_UNIX_BASIC_INFO *data_offset, |
| 5205 | const struct cifs_unix_set_info_args *args) |
| 5206 | { |
| 5207 | u64 mode = args->mode; |
| 5208 | |
| 5209 | /* |
| 5210 | * Samba server ignores set of file size to zero due to bugs in some |
| 5211 | * older clients, but we should be precise - we use SetFileSize to |
| 5212 | * set file size and do not want to truncate file size to zero |
| 5213 | * accidently as happened on one Samba server beta by putting |
| 5214 | * zero instead of -1 here |
| 5215 | */ |
| 5216 | data_offset->EndOfFile = cpu_to_le64(NO_CHANGE_64); |
| 5217 | data_offset->NumOfBytes = cpu_to_le64(NO_CHANGE_64); |
| 5218 | data_offset->LastStatusChange = cpu_to_le64(args->ctime); |
| 5219 | data_offset->LastAccessTime = cpu_to_le64(args->atime); |
| 5220 | data_offset->LastModificationTime = cpu_to_le64(args->mtime); |
| 5221 | data_offset->Uid = cpu_to_le64(args->uid); |
| 5222 | data_offset->Gid = cpu_to_le64(args->gid); |
| 5223 | /* better to leave device as zero when it is */ |
| 5224 | data_offset->DevMajor = cpu_to_le64(MAJOR(args->device)); |
| 5225 | data_offset->DevMinor = cpu_to_le64(MINOR(args->device)); |
| 5226 | data_offset->Permissions = cpu_to_le64(mode); |
| 5227 | |
| 5228 | if (S_ISREG(mode)) |
| 5229 | data_offset->Type = cpu_to_le32(UNIX_FILE); |
| 5230 | else if (S_ISDIR(mode)) |
| 5231 | data_offset->Type = cpu_to_le32(UNIX_DIR); |
| 5232 | else if (S_ISLNK(mode)) |
| 5233 | data_offset->Type = cpu_to_le32(UNIX_SYMLINK); |
| 5234 | else if (S_ISCHR(mode)) |
| 5235 | data_offset->Type = cpu_to_le32(UNIX_CHARDEV); |
| 5236 | else if (S_ISBLK(mode)) |
| 5237 | data_offset->Type = cpu_to_le32(UNIX_BLOCKDEV); |
| 5238 | else if (S_ISFIFO(mode)) |
| 5239 | data_offset->Type = cpu_to_le32(UNIX_FIFO); |
| 5240 | else if (S_ISSOCK(mode)) |
| 5241 | data_offset->Type = cpu_to_le32(UNIX_SOCKET); |
| 5242 | } |
| 5243 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5244 | int |
Jeff Layton | 3bbeeb3 | 2009-07-09 20:02:50 -0400 | [diff] [blame] | 5245 | CIFSSMBUnixSetFileInfo(const int xid, struct cifsTconInfo *tcon, |
| 5246 | const struct cifs_unix_set_info_args *args, |
| 5247 | u16 fid, u32 pid_of_opener) |
| 5248 | { |
| 5249 | struct smb_com_transaction2_sfi_req *pSMB = NULL; |
| 5250 | FILE_UNIX_BASIC_INFO *data_offset; |
| 5251 | int rc = 0; |
| 5252 | u16 params, param_offset, offset, byte_count, count; |
| 5253 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 5254 | cFYI(1, "Set Unix Info (via SetFileInfo)"); |
Jeff Layton | 3bbeeb3 | 2009-07-09 20:02:50 -0400 | [diff] [blame] | 5255 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
| 5256 | |
| 5257 | if (rc) |
| 5258 | return rc; |
| 5259 | |
| 5260 | pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener); |
| 5261 | pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16)); |
| 5262 | |
| 5263 | params = 6; |
| 5264 | pSMB->MaxSetupCount = 0; |
| 5265 | pSMB->Reserved = 0; |
| 5266 | pSMB->Flags = 0; |
| 5267 | pSMB->Timeout = 0; |
| 5268 | pSMB->Reserved2 = 0; |
| 5269 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; |
| 5270 | offset = param_offset + params; |
| 5271 | |
| 5272 | data_offset = (FILE_UNIX_BASIC_INFO *) |
| 5273 | ((char *)(&pSMB->hdr.Protocol) + offset); |
| 5274 | count = sizeof(FILE_UNIX_BASIC_INFO); |
| 5275 | |
| 5276 | pSMB->MaxParameterCount = cpu_to_le16(2); |
| 5277 | /* BB find max SMB PDU from sess */ |
| 5278 | pSMB->MaxDataCount = cpu_to_le16(1000); |
| 5279 | pSMB->SetupCount = 1; |
| 5280 | pSMB->Reserved3 = 0; |
| 5281 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); |
| 5282 | byte_count = 3 /* pad */ + params + count; |
| 5283 | pSMB->DataCount = cpu_to_le16(count); |
| 5284 | pSMB->ParameterCount = cpu_to_le16(params); |
| 5285 | pSMB->TotalDataCount = pSMB->DataCount; |
| 5286 | pSMB->TotalParameterCount = pSMB->ParameterCount; |
| 5287 | pSMB->ParameterOffset = cpu_to_le16(param_offset); |
| 5288 | pSMB->DataOffset = cpu_to_le16(offset); |
| 5289 | pSMB->Fid = fid; |
| 5290 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_BASIC); |
| 5291 | pSMB->Reserved4 = 0; |
| 5292 | pSMB->hdr.smb_buf_length += byte_count; |
| 5293 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 5294 | |
| 5295 | cifs_fill_unix_set_info(data_offset, args); |
| 5296 | |
| 5297 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); |
| 5298 | if (rc) |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 5299 | cFYI(1, "Send error in Set Time (SetFileInfo) = %d", rc); |
Jeff Layton | 3bbeeb3 | 2009-07-09 20:02:50 -0400 | [diff] [blame] | 5300 | |
| 5301 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
| 5302 | since file handle passed in no longer valid */ |
| 5303 | |
| 5304 | return rc; |
| 5305 | } |
| 5306 | |
| 5307 | int |
Jeff Layton | 01ea95e | 2009-07-09 20:02:49 -0400 | [diff] [blame] | 5308 | CIFSSMBUnixSetPathInfo(const int xid, struct cifsTconInfo *tcon, char *fileName, |
| 5309 | const struct cifs_unix_set_info_args *args, |
| 5310 | const struct nls_table *nls_codepage, int remap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5311 | { |
| 5312 | TRANSACTION2_SPI_REQ *pSMB = NULL; |
| 5313 | TRANSACTION2_SPI_RSP *pSMBr = NULL; |
| 5314 | int name_len; |
| 5315 | int rc = 0; |
| 5316 | int bytes_returned = 0; |
| 5317 | FILE_UNIX_BASIC_INFO *data_offset; |
| 5318 | __u16 params, param_offset, offset, count, byte_count; |
| 5319 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 5320 | cFYI(1, "In SetUID/GID/Mode"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5321 | setPermsRetry: |
| 5322 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 5323 | (void **) &pSMBr); |
| 5324 | if (rc) |
| 5325 | return rc; |
| 5326 | |
| 5327 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 5328 | name_len = |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 5329 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 5330 | PATH_MAX, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5331 | name_len++; /* trailing null */ |
| 5332 | name_len *= 2; |
Steve French | 3e87d80 | 2005-09-18 20:49:21 -0700 | [diff] [blame] | 5333 | } else { /* BB improve the check for buffer overruns BB */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5334 | name_len = strnlen(fileName, PATH_MAX); |
| 5335 | name_len++; /* trailing null */ |
| 5336 | strncpy(pSMB->FileName, fileName, name_len); |
| 5337 | } |
| 5338 | |
| 5339 | params = 6 + name_len; |
Steve French | 26f5736 | 2007-08-30 22:09:15 +0000 | [diff] [blame] | 5340 | count = sizeof(FILE_UNIX_BASIC_INFO); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5341 | pSMB->MaxParameterCount = cpu_to_le16(2); |
Steve French | 582d21e | 2008-05-13 04:54:12 +0000 | [diff] [blame] | 5342 | /* BB find max SMB PDU from sess structure BB */ |
| 5343 | pSMB->MaxDataCount = cpu_to_le16(1000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5344 | pSMB->MaxSetupCount = 0; |
| 5345 | pSMB->Reserved = 0; |
| 5346 | pSMB->Flags = 0; |
| 5347 | pSMB->Timeout = 0; |
| 5348 | pSMB->Reserved2 = 0; |
| 5349 | param_offset = offsetof(struct smb_com_transaction2_spi_req, |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 5350 | InformationLevel) - 4; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5351 | offset = param_offset + params; |
| 5352 | data_offset = |
| 5353 | (FILE_UNIX_BASIC_INFO *) ((char *) &pSMB->hdr.Protocol + |
| 5354 | offset); |
| 5355 | memset(data_offset, 0, count); |
| 5356 | pSMB->DataOffset = cpu_to_le16(offset); |
| 5357 | pSMB->ParameterOffset = cpu_to_le16(param_offset); |
| 5358 | pSMB->SetupCount = 1; |
| 5359 | pSMB->Reserved3 = 0; |
| 5360 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); |
| 5361 | byte_count = 3 /* pad */ + params + count; |
| 5362 | pSMB->ParameterCount = cpu_to_le16(params); |
| 5363 | pSMB->DataCount = cpu_to_le16(count); |
| 5364 | pSMB->TotalParameterCount = pSMB->ParameterCount; |
| 5365 | pSMB->TotalDataCount = pSMB->DataCount; |
| 5366 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_BASIC); |
| 5367 | pSMB->Reserved4 = 0; |
| 5368 | pSMB->hdr.smb_buf_length += byte_count; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 5369 | |
Jeff Layton | 654cf14 | 2009-07-09 20:02:49 -0400 | [diff] [blame] | 5370 | cifs_fill_unix_set_info(data_offset, args); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5371 | |
| 5372 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 5373 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 5374 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 5375 | if (rc) |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 5376 | cFYI(1, "SetPathInfo (perms) returned %d", rc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5377 | |
Steve French | 0d817bc | 2008-05-22 02:02:03 +0000 | [diff] [blame] | 5378 | cifs_buf_release(pSMB); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5379 | if (rc == -EAGAIN) |
| 5380 | goto setPermsRetry; |
| 5381 | return rc; |
| 5382 | } |
| 5383 | |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 5384 | int CIFSSMBNotify(const int xid, struct cifsTconInfo *tcon, |
Steve French | 167a251 | 2005-08-24 20:03:11 -0700 | [diff] [blame] | 5385 | const int notify_subdirs, const __u16 netfid, |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 5386 | __u32 filter, struct file *pfile, int multishot, |
Steve French | 167a251 | 2005-08-24 20:03:11 -0700 | [diff] [blame] | 5387 | const struct nls_table *nls_codepage) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5388 | { |
| 5389 | int rc = 0; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 5390 | struct smb_com_transaction_change_notify_req *pSMB = NULL; |
| 5391 | struct smb_com_ntransaction_change_notify_rsp *pSMBr = NULL; |
Steve French | abb15b8 | 2005-08-24 18:51:02 -0700 | [diff] [blame] | 5392 | struct dir_notify_req *dnotify_req; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5393 | int bytes_returned; |
| 5394 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 5395 | cFYI(1, "In CIFSSMBNotify for file handle %d", (int)netfid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5396 | rc = smb_init(SMB_COM_NT_TRANSACT, 23, tcon, (void **) &pSMB, |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 5397 | (void **) &pSMBr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5398 | if (rc) |
| 5399 | return rc; |
| 5400 | |
| 5401 | pSMB->TotalParameterCount = 0 ; |
| 5402 | pSMB->TotalDataCount = 0; |
| 5403 | pSMB->MaxParameterCount = cpu_to_le32(2); |
| 5404 | /* BB find exact data count max from sess structure BB */ |
| 5405 | pSMB->MaxDataCount = 0; /* same in little endian or be */ |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 5406 | /* BB VERIFY verify which is correct for above BB */ |
| 5407 | pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf - |
| 5408 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); |
| 5409 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5410 | pSMB->MaxSetupCount = 4; |
| 5411 | pSMB->Reserved = 0; |
| 5412 | pSMB->ParameterOffset = 0; |
| 5413 | pSMB->DataCount = 0; |
| 5414 | pSMB->DataOffset = 0; |
| 5415 | pSMB->SetupCount = 4; /* single byte does not need le conversion */ |
| 5416 | pSMB->SubCommand = cpu_to_le16(NT_TRANSACT_NOTIFY_CHANGE); |
| 5417 | pSMB->ParameterCount = pSMB->TotalParameterCount; |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 5418 | if (notify_subdirs) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5419 | pSMB->WatchTree = 1; /* one byte - no le conversion needed */ |
| 5420 | pSMB->Reserved2 = 0; |
| 5421 | pSMB->CompletionFilter = cpu_to_le32(filter); |
| 5422 | pSMB->Fid = netfid; /* file handle always le */ |
| 5423 | pSMB->ByteCount = 0; |
| 5424 | |
| 5425 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
Steve French | 133672e | 2007-11-13 22:41:37 +0000 | [diff] [blame] | 5426 | (struct smb_hdr *)pSMBr, &bytes_returned, |
| 5427 | CIFS_ASYNC_OP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5428 | if (rc) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 5429 | cFYI(1, "Error in Notify = %d", rc); |
Steve French | ff5dbd9 | 2005-08-24 17:10:36 -0700 | [diff] [blame] | 5430 | } else { |
| 5431 | /* Add file to outstanding requests */ |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 5432 | /* BB change to kmem cache alloc */ |
Robert P. J. Day | 5cbded5 | 2006-12-13 00:35:56 -0800 | [diff] [blame] | 5433 | dnotify_req = kmalloc( |
Steve French | 47c786e | 2005-10-11 20:03:18 -0700 | [diff] [blame] | 5434 | sizeof(struct dir_notify_req), |
| 5435 | GFP_KERNEL); |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 5436 | if (dnotify_req) { |
Steve French | 47c786e | 2005-10-11 20:03:18 -0700 | [diff] [blame] | 5437 | dnotify_req->Pid = pSMB->hdr.Pid; |
| 5438 | dnotify_req->PidHigh = pSMB->hdr.PidHigh; |
| 5439 | dnotify_req->Mid = pSMB->hdr.Mid; |
| 5440 | dnotify_req->Tid = pSMB->hdr.Tid; |
| 5441 | dnotify_req->Uid = pSMB->hdr.Uid; |
| 5442 | dnotify_req->netfid = netfid; |
| 5443 | dnotify_req->pfile = pfile; |
| 5444 | dnotify_req->filter = filter; |
| 5445 | dnotify_req->multishot = multishot; |
| 5446 | spin_lock(&GlobalMid_Lock); |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 5447 | list_add_tail(&dnotify_req->lhead, |
Steve French | 47c786e | 2005-10-11 20:03:18 -0700 | [diff] [blame] | 5448 | &GlobalDnotifyReqList); |
| 5449 | spin_unlock(&GlobalMid_Lock); |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 5450 | } else |
Steve French | 47c786e | 2005-10-11 20:03:18 -0700 | [diff] [blame] | 5451 | rc = -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5452 | } |
| 5453 | cifs_buf_release(pSMB); |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 5454 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5455 | } |
Jeff Layton | 31c0519 | 2010-02-10 16:18:26 -0500 | [diff] [blame] | 5456 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5457 | #ifdef CONFIG_CIFS_XATTR |
Jeff Layton | 31c0519 | 2010-02-10 16:18:26 -0500 | [diff] [blame] | 5458 | /* |
| 5459 | * Do a path-based QUERY_ALL_EAS call and parse the result. This is a common |
| 5460 | * function used by listxattr and getxattr type calls. When ea_name is set, |
| 5461 | * it looks for that attribute name and stuffs that value into the EAData |
| 5462 | * buffer. When ea_name is NULL, it stuffs a list of attribute names into the |
| 5463 | * buffer. In both cases, the return value is either the length of the |
| 5464 | * resulting data or a negative error code. If EAData is a NULL pointer then |
| 5465 | * the data isn't copied to it, but the length is returned. |
| 5466 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5467 | ssize_t |
| 5468 | CIFSSMBQAllEAs(const int xid, struct cifsTconInfo *tcon, |
Jeff Layton | 31c0519 | 2010-02-10 16:18:26 -0500 | [diff] [blame] | 5469 | const unsigned char *searchName, const unsigned char *ea_name, |
| 5470 | char *EAData, size_t buf_size, |
| 5471 | const struct nls_table *nls_codepage, int remap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5472 | { |
| 5473 | /* BB assumes one setup word */ |
| 5474 | TRANSACTION2_QPI_REQ *pSMB = NULL; |
| 5475 | TRANSACTION2_QPI_RSP *pSMBr = NULL; |
| 5476 | int rc = 0; |
| 5477 | int bytes_returned; |
Jeff Layton | 6e462b9 | 2010-02-10 16:18:26 -0500 | [diff] [blame] | 5478 | int list_len; |
Jeff Layton | f0d3868 | 2010-02-10 16:18:26 -0500 | [diff] [blame] | 5479 | struct fealist *ea_response_data; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 5480 | struct fea *temp_fea; |
| 5481 | char *temp_ptr; |
Jeff Layton | 0cd126b | 2010-02-10 16:18:26 -0500 | [diff] [blame] | 5482 | char *end_of_smb; |
Jeff Layton | f0d3868 | 2010-02-10 16:18:26 -0500 | [diff] [blame] | 5483 | __u16 params, byte_count, data_offset; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5484 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 5485 | cFYI(1, "In Query All EAs path %s", searchName); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5486 | QAllEAsRetry: |
| 5487 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 5488 | (void **) &pSMBr); |
| 5489 | if (rc) |
| 5490 | return rc; |
| 5491 | |
| 5492 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
Jeff Layton | 6e462b9 | 2010-02-10 16:18:26 -0500 | [diff] [blame] | 5493 | list_len = |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 5494 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 5495 | PATH_MAX, nls_codepage, remap); |
Jeff Layton | 6e462b9 | 2010-02-10 16:18:26 -0500 | [diff] [blame] | 5496 | list_len++; /* trailing null */ |
| 5497 | list_len *= 2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5498 | } else { /* BB improve the check for buffer overruns BB */ |
Jeff Layton | 6e462b9 | 2010-02-10 16:18:26 -0500 | [diff] [blame] | 5499 | list_len = strnlen(searchName, PATH_MAX); |
| 5500 | list_len++; /* trailing null */ |
| 5501 | strncpy(pSMB->FileName, searchName, list_len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5502 | } |
| 5503 | |
Jeff Layton | 6e462b9 | 2010-02-10 16:18:26 -0500 | [diff] [blame] | 5504 | params = 2 /* level */ + 4 /* reserved */ + list_len /* includes NUL */; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5505 | pSMB->TotalDataCount = 0; |
| 5506 | pSMB->MaxParameterCount = cpu_to_le16(2); |
Steve French | 582d21e | 2008-05-13 04:54:12 +0000 | [diff] [blame] | 5507 | /* BB find exact max SMB PDU from sess structure BB */ |
Jeff Layton | e529614 | 2010-02-10 16:18:26 -0500 | [diff] [blame] | 5508 | pSMB->MaxDataCount = cpu_to_le16(CIFSMaxBufSize); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5509 | pSMB->MaxSetupCount = 0; |
| 5510 | pSMB->Reserved = 0; |
| 5511 | pSMB->Flags = 0; |
| 5512 | pSMB->Timeout = 0; |
| 5513 | pSMB->Reserved2 = 0; |
| 5514 | pSMB->ParameterOffset = cpu_to_le16(offsetof( |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 5515 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5516 | pSMB->DataCount = 0; |
| 5517 | pSMB->DataOffset = 0; |
| 5518 | pSMB->SetupCount = 1; |
| 5519 | pSMB->Reserved3 = 0; |
| 5520 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); |
| 5521 | byte_count = params + 1 /* pad */ ; |
| 5522 | pSMB->TotalParameterCount = cpu_to_le16(params); |
| 5523 | pSMB->ParameterCount = pSMB->TotalParameterCount; |
| 5524 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_QUERY_ALL_EAS); |
| 5525 | pSMB->Reserved4 = 0; |
| 5526 | pSMB->hdr.smb_buf_length += byte_count; |
| 5527 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 5528 | |
| 5529 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 5530 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 5531 | if (rc) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 5532 | cFYI(1, "Send error in QueryAllEAs = %d", rc); |
Jeff Layton | f0d3868 | 2010-02-10 16:18:26 -0500 | [diff] [blame] | 5533 | goto QAllEAsOut; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5534 | } |
Jeff Layton | f0d3868 | 2010-02-10 16:18:26 -0500 | [diff] [blame] | 5535 | |
| 5536 | |
| 5537 | /* BB also check enough total bytes returned */ |
| 5538 | /* BB we need to improve the validity checking |
| 5539 | of these trans2 responses */ |
| 5540 | |
| 5541 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
| 5542 | if (rc || (pSMBr->ByteCount < 4)) { |
| 5543 | rc = -EIO; /* bad smb */ |
| 5544 | goto QAllEAsOut; |
| 5545 | } |
| 5546 | |
| 5547 | /* check that length of list is not more than bcc */ |
| 5548 | /* check that each entry does not go beyond length |
| 5549 | of list */ |
| 5550 | /* check that each element of each entry does not |
| 5551 | go beyond end of list */ |
| 5552 | /* validate_trans2_offsets() */ |
| 5553 | /* BB check if start of smb + data_offset > &bcc+ bcc */ |
| 5554 | |
| 5555 | data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
| 5556 | ea_response_data = (struct fealist *) |
| 5557 | (((char *) &pSMBr->hdr.Protocol) + data_offset); |
| 5558 | |
Jeff Layton | 6e462b9 | 2010-02-10 16:18:26 -0500 | [diff] [blame] | 5559 | list_len = le32_to_cpu(ea_response_data->list_len); |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 5560 | cFYI(1, "ea length %d", list_len); |
Jeff Layton | 6e462b9 | 2010-02-10 16:18:26 -0500 | [diff] [blame] | 5561 | if (list_len <= 8) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 5562 | cFYI(1, "empty EA list returned from server"); |
Jeff Layton | f0d3868 | 2010-02-10 16:18:26 -0500 | [diff] [blame] | 5563 | goto QAllEAsOut; |
| 5564 | } |
| 5565 | |
Jeff Layton | 0cd126b | 2010-02-10 16:18:26 -0500 | [diff] [blame] | 5566 | /* make sure list_len doesn't go past end of SMB */ |
| 5567 | end_of_smb = (char *)pByteArea(&pSMBr->hdr) + BCC(&pSMBr->hdr); |
| 5568 | if ((char *)ea_response_data + list_len > end_of_smb) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 5569 | cFYI(1, "EA list appears to go beyond SMB"); |
Jeff Layton | 0cd126b | 2010-02-10 16:18:26 -0500 | [diff] [blame] | 5570 | rc = -EIO; |
| 5571 | goto QAllEAsOut; |
| 5572 | } |
| 5573 | |
Jeff Layton | f0d3868 | 2010-02-10 16:18:26 -0500 | [diff] [blame] | 5574 | /* account for ea list len */ |
Jeff Layton | 6e462b9 | 2010-02-10 16:18:26 -0500 | [diff] [blame] | 5575 | list_len -= 4; |
Jeff Layton | f0d3868 | 2010-02-10 16:18:26 -0500 | [diff] [blame] | 5576 | temp_fea = ea_response_data->list; |
| 5577 | temp_ptr = (char *)temp_fea; |
Jeff Layton | 6e462b9 | 2010-02-10 16:18:26 -0500 | [diff] [blame] | 5578 | while (list_len > 0) { |
Steve French | 122ca00 | 2010-02-24 21:56:48 +0000 | [diff] [blame] | 5579 | unsigned int name_len; |
Jeff Layton | f0d3868 | 2010-02-10 16:18:26 -0500 | [diff] [blame] | 5580 | __u16 value_len; |
Jeff Layton | 0cd126b | 2010-02-10 16:18:26 -0500 | [diff] [blame] | 5581 | |
Jeff Layton | 6e462b9 | 2010-02-10 16:18:26 -0500 | [diff] [blame] | 5582 | list_len -= 4; |
Jeff Layton | f0d3868 | 2010-02-10 16:18:26 -0500 | [diff] [blame] | 5583 | temp_ptr += 4; |
Jeff Layton | 0cd126b | 2010-02-10 16:18:26 -0500 | [diff] [blame] | 5584 | /* make sure we can read name_len and value_len */ |
| 5585 | if (list_len < 0) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 5586 | cFYI(1, "EA entry goes beyond length of list"); |
Jeff Layton | 0cd126b | 2010-02-10 16:18:26 -0500 | [diff] [blame] | 5587 | rc = -EIO; |
| 5588 | goto QAllEAsOut; |
| 5589 | } |
| 5590 | |
| 5591 | name_len = temp_fea->name_len; |
| 5592 | value_len = le16_to_cpu(temp_fea->value_len); |
| 5593 | list_len -= name_len + 1 + value_len; |
| 5594 | if (list_len < 0) { |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 5595 | cFYI(1, "EA entry goes beyond length of list"); |
Jeff Layton | 0cd126b | 2010-02-10 16:18:26 -0500 | [diff] [blame] | 5596 | rc = -EIO; |
| 5597 | goto QAllEAsOut; |
| 5598 | } |
| 5599 | |
Jeff Layton | 31c0519 | 2010-02-10 16:18:26 -0500 | [diff] [blame] | 5600 | if (ea_name) { |
| 5601 | if (strncmp(ea_name, temp_ptr, name_len) == 0) { |
| 5602 | temp_ptr += name_len + 1; |
| 5603 | rc = value_len; |
| 5604 | if (buf_size == 0) |
| 5605 | goto QAllEAsOut; |
| 5606 | if ((size_t)value_len > buf_size) { |
| 5607 | rc = -ERANGE; |
| 5608 | goto QAllEAsOut; |
| 5609 | } |
| 5610 | memcpy(EAData, temp_ptr, value_len); |
| 5611 | goto QAllEAsOut; |
| 5612 | } |
Jeff Layton | f0d3868 | 2010-02-10 16:18:26 -0500 | [diff] [blame] | 5613 | } else { |
Jeff Layton | 31c0519 | 2010-02-10 16:18:26 -0500 | [diff] [blame] | 5614 | /* account for prefix user. and trailing null */ |
| 5615 | rc += (5 + 1 + name_len); |
| 5616 | if (rc < (int) buf_size) { |
| 5617 | memcpy(EAData, "user.", 5); |
| 5618 | EAData += 5; |
| 5619 | memcpy(EAData, temp_ptr, name_len); |
| 5620 | EAData += name_len; |
| 5621 | /* null terminate name */ |
| 5622 | *EAData = 0; |
| 5623 | ++EAData; |
| 5624 | } else if (buf_size == 0) { |
| 5625 | /* skip copy - calc size only */ |
| 5626 | } else { |
| 5627 | /* stop before overrun buffer */ |
| 5628 | rc = -ERANGE; |
| 5629 | break; |
| 5630 | } |
Jeff Layton | f0d3868 | 2010-02-10 16:18:26 -0500 | [diff] [blame] | 5631 | } |
Jeff Layton | 0cd126b | 2010-02-10 16:18:26 -0500 | [diff] [blame] | 5632 | temp_ptr += name_len + 1 + value_len; |
Jeff Layton | f0d3868 | 2010-02-10 16:18:26 -0500 | [diff] [blame] | 5633 | temp_fea = (struct fea *)temp_ptr; |
| 5634 | } |
| 5635 | |
Jeff Layton | 31c0519 | 2010-02-10 16:18:26 -0500 | [diff] [blame] | 5636 | /* didn't find the named attribute */ |
| 5637 | if (ea_name) |
| 5638 | rc = -ENODATA; |
| 5639 | |
Jeff Layton | f0d3868 | 2010-02-10 16:18:26 -0500 | [diff] [blame] | 5640 | QAllEAsOut: |
Steve French | 0d817bc | 2008-05-22 02:02:03 +0000 | [diff] [blame] | 5641 | cifs_buf_release(pSMB); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5642 | if (rc == -EAGAIN) |
| 5643 | goto QAllEAsRetry; |
| 5644 | |
| 5645 | return (ssize_t)rc; |
| 5646 | } |
| 5647 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5648 | int |
| 5649 | CIFSSMBSetEA(const int xid, struct cifsTconInfo *tcon, const char *fileName, |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 5650 | const char *ea_name, const void *ea_value, |
| 5651 | const __u16 ea_value_len, const struct nls_table *nls_codepage, |
| 5652 | int remap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5653 | { |
| 5654 | struct smb_com_transaction2_spi_req *pSMB = NULL; |
| 5655 | struct smb_com_transaction2_spi_rsp *pSMBr = NULL; |
| 5656 | struct fealist *parm_data; |
| 5657 | int name_len; |
| 5658 | int rc = 0; |
| 5659 | int bytes_returned = 0; |
| 5660 | __u16 params, param_offset, byte_count, offset, count; |
| 5661 | |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 5662 | cFYI(1, "In SetEA"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5663 | SetEARetry: |
| 5664 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 5665 | (void **) &pSMBr); |
| 5666 | if (rc) |
| 5667 | return rc; |
| 5668 | |
| 5669 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 5670 | name_len = |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 5671 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 5672 | PATH_MAX, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5673 | name_len++; /* trailing null */ |
| 5674 | name_len *= 2; |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 5675 | } else { /* BB improve the check for buffer overruns BB */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5676 | name_len = strnlen(fileName, PATH_MAX); |
| 5677 | name_len++; /* trailing null */ |
| 5678 | strncpy(pSMB->FileName, fileName, name_len); |
| 5679 | } |
| 5680 | |
| 5681 | params = 6 + name_len; |
| 5682 | |
| 5683 | /* done calculating parms using name_len of file name, |
| 5684 | now use name_len to calculate length of ea name |
| 5685 | we are going to create in the inode xattrs */ |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 5686 | if (ea_name == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5687 | name_len = 0; |
| 5688 | else |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 5689 | name_len = strnlen(ea_name, 255); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5690 | |
Steve French | dae5dbdb | 2007-12-30 23:49:57 +0000 | [diff] [blame] | 5691 | count = sizeof(*parm_data) + ea_value_len + name_len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5692 | pSMB->MaxParameterCount = cpu_to_le16(2); |
Steve French | 582d21e | 2008-05-13 04:54:12 +0000 | [diff] [blame] | 5693 | /* BB find max SMB PDU from sess */ |
| 5694 | pSMB->MaxDataCount = cpu_to_le16(1000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5695 | pSMB->MaxSetupCount = 0; |
| 5696 | pSMB->Reserved = 0; |
| 5697 | pSMB->Flags = 0; |
| 5698 | pSMB->Timeout = 0; |
| 5699 | pSMB->Reserved2 = 0; |
| 5700 | param_offset = offsetof(struct smb_com_transaction2_spi_req, |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 5701 | InformationLevel) - 4; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5702 | offset = param_offset + params; |
| 5703 | pSMB->InformationLevel = |
| 5704 | cpu_to_le16(SMB_SET_FILE_EA); |
| 5705 | |
| 5706 | parm_data = |
| 5707 | (struct fealist *) (((char *) &pSMB->hdr.Protocol) + |
| 5708 | offset); |
| 5709 | pSMB->ParameterOffset = cpu_to_le16(param_offset); |
| 5710 | pSMB->DataOffset = cpu_to_le16(offset); |
| 5711 | pSMB->SetupCount = 1; |
| 5712 | pSMB->Reserved3 = 0; |
| 5713 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); |
| 5714 | byte_count = 3 /* pad */ + params + count; |
| 5715 | pSMB->DataCount = cpu_to_le16(count); |
| 5716 | parm_data->list_len = cpu_to_le32(count); |
| 5717 | parm_data->list[0].EA_flags = 0; |
| 5718 | /* we checked above that name len is less than 255 */ |
Alexey Dobriyan | 53b3531 | 2006-03-24 03:16:13 -0800 | [diff] [blame] | 5719 | parm_data->list[0].name_len = (__u8)name_len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5720 | /* EA names are always ASCII */ |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 5721 | if (ea_name) |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 5722 | strncpy(parm_data->list[0].name, ea_name, name_len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5723 | parm_data->list[0].name[name_len] = 0; |
| 5724 | parm_data->list[0].value_len = cpu_to_le16(ea_value_len); |
| 5725 | /* caller ensures that ea_value_len is less than 64K but |
| 5726 | we need to ensure that it fits within the smb */ |
| 5727 | |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 5728 | /*BB add length check to see if it would fit in |
| 5729 | negotiated SMB buffer size BB */ |
Steve French | 790fe57 | 2007-07-07 19:25:05 +0000 | [diff] [blame] | 5730 | /* if (ea_value_len > buffer_size - 512 (enough for header)) */ |
| 5731 | if (ea_value_len) |
Steve French | 50c2f75 | 2007-07-13 00:33:32 +0000 | [diff] [blame] | 5732 | memcpy(parm_data->list[0].name+name_len+1, |
| 5733 | ea_value, ea_value_len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5734 | |
| 5735 | pSMB->TotalDataCount = pSMB->DataCount; |
| 5736 | pSMB->ParameterCount = cpu_to_le16(params); |
| 5737 | pSMB->TotalParameterCount = pSMB->ParameterCount; |
| 5738 | pSMB->Reserved4 = 0; |
| 5739 | pSMB->hdr.smb_buf_length += byte_count; |
| 5740 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 5741 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 5742 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
Steve French | ad7a292 | 2008-02-07 23:25:02 +0000 | [diff] [blame] | 5743 | if (rc) |
Joe Perches | b6b38f7 | 2010-04-21 03:50:45 +0000 | [diff] [blame] | 5744 | cFYI(1, "SetPathInfo (EA) returned %d", rc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5745 | |
| 5746 | cifs_buf_release(pSMB); |
| 5747 | |
| 5748 | if (rc == -EAGAIN) |
| 5749 | goto SetEARetry; |
| 5750 | |
| 5751 | return rc; |
| 5752 | } |
| 5753 | |
| 5754 | #endif |