Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * fs/cifs/cifssmb.c |
| 3 | * |
Steve French | 12b3b8f | 2006-02-09 21:12:47 +0000 | [diff] [blame] | 4 | * Copyright (C) International Business Machines Corp., 2002,2006 |
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 */ |
| 27 | /* treated slightly different for reconnection purposes since we never want */ |
| 28 | /* to reuse a stale file handle and the caller knows the file handle */ |
| 29 | |
| 30 | #include <linux/fs.h> |
| 31 | #include <linux/kernel.h> |
| 32 | #include <linux/vfs.h> |
| 33 | #include <linux/posix_acl_xattr.h> |
| 34 | #include <asm/uaccess.h> |
| 35 | #include "cifspdu.h" |
| 36 | #include "cifsglob.h" |
| 37 | #include "cifsproto.h" |
| 38 | #include "cifs_unicode.h" |
| 39 | #include "cifs_debug.h" |
Steve French | eeac804 | 2006-01-13 21:34:58 -0800 | [diff] [blame] | 40 | #include "cifsacl.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 41 | |
| 42 | #ifdef CONFIG_CIFS_POSIX |
| 43 | static struct { |
| 44 | int index; |
| 45 | char *name; |
| 46 | } protocols[] = { |
| 47 | {CIFS_PROT, "\2NT LM 0.12"}, |
| 48 | {CIFS_PROT, "\2POSIX 2"}, |
| 49 | {BAD_PROT, "\2"} |
| 50 | }; |
| 51 | #else |
| 52 | static struct { |
| 53 | int index; |
| 54 | char *name; |
| 55 | } protocols[] = { |
| 56 | {CIFS_PROT, "\2NT LM 0.12"}, |
| 57 | {BAD_PROT, "\2"} |
| 58 | }; |
| 59 | #endif |
| 60 | |
| 61 | |
| 62 | /* Mark as invalid, all open files on tree connections since they |
| 63 | were closed when session to server was lost */ |
| 64 | static void mark_open_files_invalid(struct cifsTconInfo * pTcon) |
| 65 | { |
| 66 | struct cifsFileInfo *open_file = NULL; |
| 67 | struct list_head * tmp; |
| 68 | struct list_head * tmp1; |
| 69 | |
| 70 | /* list all files open on tree connection and mark them invalid */ |
| 71 | write_lock(&GlobalSMBSeslock); |
| 72 | list_for_each_safe(tmp, tmp1, &pTcon->openFileList) { |
| 73 | open_file = list_entry(tmp,struct cifsFileInfo, tlist); |
| 74 | if(open_file) { |
| 75 | open_file->invalidHandle = TRUE; |
| 76 | } |
| 77 | } |
| 78 | write_unlock(&GlobalSMBSeslock); |
Steve French | 09d1db5 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 79 | /* BB Add call to invalidate_inodes(sb) for all superblocks mounted |
| 80 | to this tcon */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 81 | } |
| 82 | |
| 83 | /* If the return code is zero, this function must fill in request_buf pointer */ |
| 84 | static int |
| 85 | small_smb_init(int smb_command, int wct, struct cifsTconInfo *tcon, |
| 86 | void **request_buf /* returned */) |
| 87 | { |
| 88 | int rc = 0; |
| 89 | |
| 90 | /* SMBs NegProt, SessSetup, uLogoff do not have tcon yet so |
| 91 | check for tcp and smb session status done differently |
| 92 | for those three - in the calling routine */ |
| 93 | if(tcon) { |
Steve French | 6ab16d2 | 2005-11-29 20:55:11 -0800 | [diff] [blame] | 94 | if(tcon->tidStatus == CifsExiting) { |
| 95 | /* only tree disconnect, open, and write, |
| 96 | (and ulogoff which does not have tcon) |
| 97 | are allowed as we start force umount */ |
| 98 | if((smb_command != SMB_COM_WRITE_ANDX) && |
| 99 | (smb_command != SMB_COM_OPEN_ANDX) && |
| 100 | (smb_command != SMB_COM_TREE_DISCONNECT)) { |
| 101 | cFYI(1,("can not send cmd %d while umounting", |
| 102 | smb_command)); |
| 103 | return -ENODEV; |
| 104 | } |
| 105 | } |
Steve French | 31ca3bc | 2005-04-28 22:41:11 -0700 | [diff] [blame] | 106 | if((tcon->ses) && (tcon->ses->status != CifsExiting) && |
| 107 | (tcon->ses->server)){ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 108 | struct nls_table *nls_codepage; |
| 109 | /* Give Demultiplex thread up to 10 seconds to |
Steve French | 09d1db5 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 110 | reconnect, should be greater than cifs socket |
| 111 | timeout which is 7 seconds */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 112 | while(tcon->ses->server->tcpStatus == CifsNeedReconnect) { |
| 113 | wait_event_interruptible_timeout(tcon->ses->server->response_q, |
| 114 | (tcon->ses->server->tcpStatus == CifsGood), 10 * HZ); |
| 115 | if(tcon->ses->server->tcpStatus == CifsNeedReconnect) { |
| 116 | /* on "soft" mounts we wait once */ |
| 117 | if((tcon->retry == FALSE) || |
| 118 | (tcon->ses->status == CifsExiting)) { |
| 119 | cFYI(1,("gave up waiting on reconnect in smb_init")); |
| 120 | return -EHOSTDOWN; |
Steve French | 09d1db5 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 121 | } /* else "hard" mount - keep retrying |
| 122 | until process is killed or server |
| 123 | comes back on-line */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 124 | } else /* TCP session is reestablished now */ |
| 125 | break; |
| 126 | |
| 127 | } |
| 128 | |
| 129 | nls_codepage = load_nls_default(); |
| 130 | /* need to prevent multiple threads trying to |
| 131 | simultaneously reconnect the same SMB session */ |
| 132 | down(&tcon->ses->sesSem); |
| 133 | if(tcon->ses->status == CifsNeedReconnect) |
Steve French | 09d1db5 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 134 | rc = cifs_setup_session(0, tcon->ses, |
| 135 | nls_codepage); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 136 | if(!rc && (tcon->tidStatus == CifsNeedReconnect)) { |
| 137 | mark_open_files_invalid(tcon); |
Steve French | 09d1db5 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 138 | rc = CIFSTCon(0, tcon->ses, tcon->treeName, tcon |
| 139 | , nls_codepage); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 140 | up(&tcon->ses->sesSem); |
Steve French | 3e84469 | 2005-10-03 13:37:24 -0700 | [diff] [blame] | 141 | /* BB FIXME add code to check if wsize needs |
| 142 | update due to negotiated smb buffer size |
| 143 | shrinking */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 144 | if(rc == 0) |
| 145 | atomic_inc(&tconInfoReconnectCount); |
| 146 | |
| 147 | cFYI(1, ("reconnect tcon rc = %d", rc)); |
| 148 | /* Removed call to reopen open files here - |
Steve French | 09d1db5 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 149 | it is safer (and faster) to reopen files |
| 150 | one at a time as needed in read and write */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 151 | |
| 152 | /* Check if handle based operation so we |
Steve French | 09d1db5 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 153 | know whether we can continue or not without |
| 154 | returning to caller to reset file handle */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 155 | switch(smb_command) { |
| 156 | case SMB_COM_READ_ANDX: |
| 157 | case SMB_COM_WRITE_ANDX: |
| 158 | case SMB_COM_CLOSE: |
| 159 | case SMB_COM_FIND_CLOSE2: |
| 160 | case SMB_COM_LOCKING_ANDX: { |
| 161 | unload_nls(nls_codepage); |
| 162 | return -EAGAIN; |
| 163 | } |
| 164 | } |
| 165 | } else { |
| 166 | up(&tcon->ses->sesSem); |
| 167 | } |
| 168 | unload_nls(nls_codepage); |
| 169 | |
| 170 | } else { |
| 171 | return -EIO; |
| 172 | } |
| 173 | } |
| 174 | if(rc) |
| 175 | return rc; |
| 176 | |
| 177 | *request_buf = cifs_small_buf_get(); |
| 178 | if (*request_buf == NULL) { |
| 179 | /* BB should we add a retry in here if not a writepage? */ |
| 180 | return -ENOMEM; |
| 181 | } |
| 182 | |
| 183 | header_assemble((struct smb_hdr *) *request_buf, smb_command, tcon,wct); |
| 184 | |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 185 | if(tcon != NULL) |
| 186 | cifs_stats_inc(&tcon->num_smbs_sent); |
| 187 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 188 | return rc; |
Steve French | 5815449d | 2006-02-14 01:36:20 +0000 | [diff] [blame] | 189 | } |
| 190 | |
| 191 | #ifdef CONFIG_CIFS_EXPERIMENTAL |
Steve French | 12b3b8f | 2006-02-09 21:12:47 +0000 | [diff] [blame] | 192 | int |
Steve French | 5815449d | 2006-02-14 01:36:20 +0000 | [diff] [blame] | 193 | small_smb_init_no_tc(const int smb_command, const int wct, |
| 194 | struct cifsSesInfo *ses, void **request_buf) |
Steve French | 12b3b8f | 2006-02-09 21:12:47 +0000 | [diff] [blame] | 195 | { |
| 196 | int rc; |
| 197 | struct smb_hdr * buffer; |
| 198 | |
Steve French | 5815449d | 2006-02-14 01:36:20 +0000 | [diff] [blame] | 199 | rc = small_smb_init(smb_command, wct, NULL, request_buf); |
Steve French | 12b3b8f | 2006-02-09 21:12:47 +0000 | [diff] [blame] | 200 | if(rc) |
| 201 | return rc; |
| 202 | |
Steve French | 04fdabe | 2006-02-10 05:52:50 +0000 | [diff] [blame] | 203 | buffer = (struct smb_hdr *)*request_buf; |
Steve French | 12b3b8f | 2006-02-09 21:12:47 +0000 | [diff] [blame] | 204 | buffer->Mid = GetNextMid(ses->server); |
| 205 | if (ses->capabilities & CAP_UNICODE) |
| 206 | buffer->Flags2 |= SMBFLG2_UNICODE; |
Steve French | 04fdabe | 2006-02-10 05:52:50 +0000 | [diff] [blame] | 207 | if (ses->capabilities & CAP_STATUS32) |
Steve French | 12b3b8f | 2006-02-09 21:12:47 +0000 | [diff] [blame] | 208 | buffer->Flags2 |= SMBFLG2_ERR_STATUS; |
| 209 | |
| 210 | /* uid, tid can stay at zero as set in header assemble */ |
| 211 | |
| 212 | /* BB add support for turning on the signing when |
| 213 | this function is used after 1st of session setup requests */ |
| 214 | |
| 215 | return rc; |
| 216 | } |
Steve French | 5815449d | 2006-02-14 01:36:20 +0000 | [diff] [blame] | 217 | #endif /* CONFIG_CIFS_EXPERIMENTAL */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 218 | |
| 219 | /* If the return code is zero, this function must fill in request_buf pointer */ |
| 220 | static int |
| 221 | smb_init(int smb_command, int wct, struct cifsTconInfo *tcon, |
| 222 | void **request_buf /* returned */ , |
| 223 | void **response_buf /* returned */ ) |
| 224 | { |
| 225 | int rc = 0; |
| 226 | |
| 227 | /* SMBs NegProt, SessSetup, uLogoff do not have tcon yet so |
| 228 | check for tcp and smb session status done differently |
| 229 | for those three - in the calling routine */ |
| 230 | if(tcon) { |
Steve French | 6ab16d2 | 2005-11-29 20:55:11 -0800 | [diff] [blame] | 231 | if(tcon->tidStatus == CifsExiting) { |
| 232 | /* only tree disconnect, open, and write, |
| 233 | (and ulogoff which does not have tcon) |
| 234 | are allowed as we start force umount */ |
| 235 | if((smb_command != SMB_COM_WRITE_ANDX) && |
| 236 | (smb_command != SMB_COM_OPEN_ANDX) && |
| 237 | (smb_command != SMB_COM_TREE_DISCONNECT)) { |
| 238 | cFYI(1,("can not send cmd %d while umounting", |
| 239 | smb_command)); |
| 240 | return -ENODEV; |
| 241 | } |
| 242 | } |
| 243 | |
Steve French | 31ca3bc | 2005-04-28 22:41:11 -0700 | [diff] [blame] | 244 | if((tcon->ses) && (tcon->ses->status != CifsExiting) && |
| 245 | (tcon->ses->server)){ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 246 | struct nls_table *nls_codepage; |
Steve French | 09d1db5 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 247 | /* Give Demultiplex thread up to 10 seconds to |
| 248 | reconnect, should be greater than cifs socket |
| 249 | timeout which is 7 seconds */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 250 | while(tcon->ses->server->tcpStatus == CifsNeedReconnect) { |
| 251 | wait_event_interruptible_timeout(tcon->ses->server->response_q, |
| 252 | (tcon->ses->server->tcpStatus == CifsGood), 10 * HZ); |
Steve French | 09d1db5 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 253 | if(tcon->ses->server->tcpStatus == |
| 254 | CifsNeedReconnect) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 255 | /* on "soft" mounts we wait once */ |
| 256 | if((tcon->retry == FALSE) || |
| 257 | (tcon->ses->status == CifsExiting)) { |
| 258 | cFYI(1,("gave up waiting on reconnect in smb_init")); |
| 259 | return -EHOSTDOWN; |
Steve French | 09d1db5 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 260 | } /* else "hard" mount - keep retrying |
| 261 | until process is killed or server |
| 262 | comes on-line */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 263 | } else /* TCP session is reestablished now */ |
| 264 | break; |
| 265 | |
| 266 | } |
| 267 | |
| 268 | nls_codepage = load_nls_default(); |
| 269 | /* need to prevent multiple threads trying to |
| 270 | simultaneously reconnect the same SMB session */ |
| 271 | down(&tcon->ses->sesSem); |
| 272 | if(tcon->ses->status == CifsNeedReconnect) |
Steve French | 09d1db5 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 273 | rc = cifs_setup_session(0, tcon->ses, |
| 274 | nls_codepage); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 275 | if(!rc && (tcon->tidStatus == CifsNeedReconnect)) { |
| 276 | mark_open_files_invalid(tcon); |
Steve French | 09d1db5 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 277 | rc = CIFSTCon(0, tcon->ses, tcon->treeName, |
| 278 | tcon, nls_codepage); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 279 | up(&tcon->ses->sesSem); |
Steve French | 3e84469 | 2005-10-03 13:37:24 -0700 | [diff] [blame] | 280 | /* BB FIXME add code to check if wsize needs |
| 281 | update due to negotiated smb buffer size |
| 282 | shrinking */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 283 | if(rc == 0) |
| 284 | atomic_inc(&tconInfoReconnectCount); |
| 285 | |
| 286 | cFYI(1, ("reconnect tcon rc = %d", rc)); |
| 287 | /* Removed call to reopen open files here - |
Steve French | 09d1db5 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 288 | it is safer (and faster) to reopen files |
| 289 | one at a time as needed in read and write */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 290 | |
| 291 | /* Check if handle based operation so we |
Steve French | 09d1db5 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 292 | know whether we can continue or not without |
| 293 | returning to caller to reset file handle */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 294 | switch(smb_command) { |
| 295 | case SMB_COM_READ_ANDX: |
| 296 | case SMB_COM_WRITE_ANDX: |
| 297 | case SMB_COM_CLOSE: |
| 298 | case SMB_COM_FIND_CLOSE2: |
| 299 | case SMB_COM_LOCKING_ANDX: { |
| 300 | unload_nls(nls_codepage); |
| 301 | return -EAGAIN; |
| 302 | } |
| 303 | } |
| 304 | } else { |
| 305 | up(&tcon->ses->sesSem); |
| 306 | } |
| 307 | unload_nls(nls_codepage); |
| 308 | |
| 309 | } else { |
| 310 | return -EIO; |
| 311 | } |
| 312 | } |
| 313 | if(rc) |
| 314 | return rc; |
| 315 | |
| 316 | *request_buf = cifs_buf_get(); |
| 317 | if (*request_buf == NULL) { |
| 318 | /* BB should we add a retry in here if not a writepage? */ |
| 319 | return -ENOMEM; |
| 320 | } |
| 321 | /* Although the original thought was we needed the response buf for */ |
| 322 | /* potential retries of smb operations it turns out we can determine */ |
| 323 | /* from the mid flags when the request buffer can be resent without */ |
| 324 | /* having to use a second distinct buffer for the response */ |
| 325 | *response_buf = *request_buf; |
| 326 | |
| 327 | header_assemble((struct smb_hdr *) *request_buf, smb_command, tcon, |
| 328 | wct /*wct */ ); |
| 329 | |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 330 | if(tcon != NULL) |
| 331 | cifs_stats_inc(&tcon->num_smbs_sent); |
| 332 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 333 | return rc; |
| 334 | } |
| 335 | |
| 336 | static int validate_t2(struct smb_t2_rsp * pSMB) |
| 337 | { |
| 338 | int rc = -EINVAL; |
| 339 | int total_size; |
| 340 | char * pBCC; |
| 341 | |
| 342 | /* check for plausible wct, bcc and t2 data and parm sizes */ |
| 343 | /* check for parm and data offset going beyond end of smb */ |
| 344 | if(pSMB->hdr.WordCount >= 10) { |
| 345 | if((le16_to_cpu(pSMB->t2_rsp.ParameterOffset) <= 1024) && |
| 346 | (le16_to_cpu(pSMB->t2_rsp.DataOffset) <= 1024)) { |
| 347 | /* check that bcc is at least as big as parms + data */ |
| 348 | /* check that bcc is less than negotiated smb buffer */ |
| 349 | total_size = le16_to_cpu(pSMB->t2_rsp.ParameterCount); |
| 350 | if(total_size < 512) { |
| 351 | total_size+=le16_to_cpu(pSMB->t2_rsp.DataCount); |
| 352 | /* BCC le converted in SendReceive */ |
Steve French | 09d1db5 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 353 | pBCC = (pSMB->hdr.WordCount * 2) + |
| 354 | sizeof(struct smb_hdr) + |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 355 | (char *)pSMB; |
| 356 | if((total_size <= (*(u16 *)pBCC)) && |
| 357 | (total_size < |
| 358 | CIFSMaxBufSize+MAX_CIFS_HDR_SIZE)) { |
| 359 | return 0; |
| 360 | } |
| 361 | |
| 362 | } |
| 363 | } |
| 364 | } |
| 365 | cifs_dump_mem("Invalid transact2 SMB: ",(char *)pSMB, |
| 366 | sizeof(struct smb_t2_rsp) + 16); |
| 367 | return rc; |
| 368 | } |
| 369 | int |
| 370 | CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) |
| 371 | { |
| 372 | NEGOTIATE_REQ *pSMB; |
| 373 | NEGOTIATE_RSP *pSMBr; |
| 374 | int rc = 0; |
| 375 | int bytes_returned; |
| 376 | struct TCP_Server_Info * server; |
| 377 | u16 count; |
| 378 | |
| 379 | if(ses->server) |
| 380 | server = ses->server; |
| 381 | else { |
| 382 | rc = -EIO; |
| 383 | return rc; |
| 384 | } |
| 385 | rc = smb_init(SMB_COM_NEGOTIATE, 0, NULL /* no tcon yet */ , |
| 386 | (void **) &pSMB, (void **) &pSMBr); |
| 387 | if (rc) |
| 388 | return rc; |
Steve French | 1982c34 | 2005-08-17 12:38:22 -0700 | [diff] [blame] | 389 | pSMB->hdr.Mid = GetNextMid(server); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 390 | pSMB->hdr.Flags2 |= SMBFLG2_UNICODE; |
| 391 | if (extended_security) |
| 392 | pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC; |
| 393 | |
| 394 | count = strlen(protocols[0].name) + 1; |
| 395 | strncpy(pSMB->DialectsArray, protocols[0].name, 30); |
| 396 | /* null guaranteed to be at end of source and target buffers anyway */ |
| 397 | |
| 398 | pSMB->hdr.smb_buf_length += count; |
| 399 | pSMB->ByteCount = cpu_to_le16(count); |
| 400 | |
| 401 | rc = SendReceive(xid, ses, (struct smb_hdr *) pSMB, |
| 402 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 403 | if (rc == 0) { |
Steve French | eeac804 | 2006-01-13 21:34:58 -0800 | [diff] [blame] | 404 | server->secMode = pSMBr->SecurityMode; |
| 405 | if((server->secMode & SECMODE_USER) == 0) |
| 406 | cFYI(1,("share mode security")); |
| 407 | server->secType = NTLM; /* BB override default for |
Steve French | 09d1db5 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 408 | NTLMv2 or kerberos v5 */ |
| 409 | /* one byte - no need to convert this or EncryptionKeyLen |
| 410 | from little endian */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 411 | server->maxReq = le16_to_cpu(pSMBr->MaxMpxCount); |
| 412 | /* probably no need to store and check maxvcs */ |
| 413 | server->maxBuf = |
| 414 | min(le32_to_cpu(pSMBr->MaxBufferSize), |
| 415 | (__u32) CIFSMaxBufSize + MAX_CIFS_HDR_SIZE); |
| 416 | server->maxRw = le32_to_cpu(pSMBr->MaxRawSize); |
Steve French | eeac804 | 2006-01-13 21:34:58 -0800 | [diff] [blame] | 417 | cFYI(0, ("Max buf = %d", ses->server->maxBuf)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 418 | GETU32(ses->server->sessid) = le32_to_cpu(pSMBr->SessionKey); |
| 419 | server->capabilities = le32_to_cpu(pSMBr->Capabilities); |
| 420 | server->timeZone = le16_to_cpu(pSMBr->ServerTimeZone); |
| 421 | /* BB with UTC do we ever need to be using srvr timezone? */ |
| 422 | if (pSMBr->EncryptionKeyLength == CIFS_CRYPTO_KEY_SIZE) { |
| 423 | memcpy(server->cryptKey, pSMBr->u.EncryptionKey, |
| 424 | CIFS_CRYPTO_KEY_SIZE); |
| 425 | } else if ((pSMBr->hdr.Flags2 & SMBFLG2_EXT_SEC) |
| 426 | && (pSMBr->EncryptionKeyLength == 0)) { |
| 427 | /* decode security blob */ |
| 428 | } else |
| 429 | rc = -EIO; |
| 430 | |
| 431 | /* BB might be helpful to save off the domain of server here */ |
| 432 | |
| 433 | if ((pSMBr->hdr.Flags2 & SMBFLG2_EXT_SEC) && |
| 434 | (server->capabilities & CAP_EXTENDED_SECURITY)) { |
| 435 | count = pSMBr->ByteCount; |
| 436 | if (count < 16) |
| 437 | rc = -EIO; |
| 438 | else if (count == 16) { |
| 439 | server->secType = RawNTLMSSP; |
| 440 | if (server->socketUseCount.counter > 1) { |
| 441 | if (memcmp |
| 442 | (server->server_GUID, |
| 443 | pSMBr->u.extended_response. |
| 444 | GUID, 16) != 0) { |
Steve French | eeac804 | 2006-01-13 21:34:58 -0800 | [diff] [blame] | 445 | cFYI(1, ("server UID changed")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 446 | memcpy(server-> |
| 447 | server_GUID, |
| 448 | pSMBr->u. |
| 449 | extended_response. |
| 450 | GUID, 16); |
| 451 | } |
| 452 | } else |
| 453 | memcpy(server->server_GUID, |
| 454 | pSMBr->u.extended_response. |
| 455 | GUID, 16); |
| 456 | } else { |
| 457 | rc = decode_negTokenInit(pSMBr->u. |
| 458 | extended_response. |
| 459 | SecurityBlob, |
| 460 | count - 16, |
| 461 | &server->secType); |
| 462 | if(rc == 1) { |
| 463 | /* BB Need to fill struct for sessetup here */ |
| 464 | rc = -EOPNOTSUPP; |
| 465 | } else { |
| 466 | rc = -EINVAL; |
| 467 | } |
| 468 | } |
| 469 | } else |
| 470 | server->capabilities &= ~CAP_EXTENDED_SECURITY; |
| 471 | if(sign_CIFS_PDUs == FALSE) { |
| 472 | if(server->secMode & SECMODE_SIGN_REQUIRED) |
| 473 | cERROR(1, |
| 474 | ("Server requires /proc/fs/cifs/PacketSigningEnabled")); |
Steve French | 1982c34 | 2005-08-17 12:38:22 -0700 | [diff] [blame] | 475 | server->secMode &= ~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 476 | } else if(sign_CIFS_PDUs == 1) { |
| 477 | if((server->secMode & SECMODE_SIGN_REQUIRED) == 0) |
Steve French | 1982c34 | 2005-08-17 12:38:22 -0700 | [diff] [blame] | 478 | server->secMode &= ~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 479 | } |
| 480 | |
| 481 | } |
Steve French | 1982c34 | 2005-08-17 12:38:22 -0700 | [diff] [blame] | 482 | |
Steve French | 4a6d87f | 2005-08-13 08:15:54 -0700 | [diff] [blame] | 483 | cifs_buf_release(pSMB); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 484 | return rc; |
| 485 | } |
| 486 | |
| 487 | int |
| 488 | CIFSSMBTDis(const int xid, struct cifsTconInfo *tcon) |
| 489 | { |
| 490 | struct smb_hdr *smb_buffer; |
| 491 | struct smb_hdr *smb_buffer_response; /* BB removeme BB */ |
| 492 | int rc = 0; |
| 493 | int length; |
| 494 | |
| 495 | cFYI(1, ("In tree disconnect")); |
| 496 | /* |
| 497 | * If last user of the connection and |
| 498 | * connection alive - disconnect it |
| 499 | * If this is the last connection on the server session disconnect it |
| 500 | * (and inside session disconnect we should check if tcp socket needs |
| 501 | * to be freed and kernel thread woken up). |
| 502 | */ |
| 503 | if (tcon) |
| 504 | down(&tcon->tconSem); |
| 505 | else |
| 506 | return -EIO; |
| 507 | |
| 508 | atomic_dec(&tcon->useCount); |
| 509 | if (atomic_read(&tcon->useCount) > 0) { |
| 510 | up(&tcon->tconSem); |
| 511 | return -EBUSY; |
| 512 | } |
| 513 | |
| 514 | /* No need to return error on this operation if tid invalidated and |
| 515 | closed on server already e.g. due to tcp session crashing */ |
| 516 | if(tcon->tidStatus == CifsNeedReconnect) { |
| 517 | up(&tcon->tconSem); |
| 518 | return 0; |
| 519 | } |
| 520 | |
| 521 | if((tcon->ses == NULL) || (tcon->ses->server == NULL)) { |
| 522 | up(&tcon->tconSem); |
| 523 | return -EIO; |
| 524 | } |
Steve French | 09d1db5 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 525 | rc = small_smb_init(SMB_COM_TREE_DISCONNECT, 0, tcon, |
| 526 | (void **)&smb_buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 527 | if (rc) { |
| 528 | up(&tcon->tconSem); |
| 529 | return rc; |
| 530 | } else { |
| 531 | smb_buffer_response = smb_buffer; /* BB removeme BB */ |
Steve French | cd63499 | 2005-04-28 22:41:10 -0700 | [diff] [blame] | 532 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 533 | rc = SendReceive(xid, tcon->ses, smb_buffer, smb_buffer_response, |
| 534 | &length, 0); |
| 535 | if (rc) |
Steve French | 966ca92 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 536 | cFYI(1, ("Tree disconnect failed %d", rc)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 537 | |
| 538 | if (smb_buffer) |
| 539 | cifs_small_buf_release(smb_buffer); |
| 540 | up(&tcon->tconSem); |
| 541 | |
| 542 | /* No need to return error on this operation if tid invalidated and |
| 543 | closed on server already e.g. due to tcp session crashing */ |
| 544 | if (rc == -EAGAIN) |
| 545 | rc = 0; |
| 546 | |
| 547 | return rc; |
| 548 | } |
| 549 | |
| 550 | int |
| 551 | CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses) |
| 552 | { |
| 553 | struct smb_hdr *smb_buffer_response; |
| 554 | LOGOFF_ANDX_REQ *pSMB; |
| 555 | int rc = 0; |
| 556 | int length; |
| 557 | |
| 558 | cFYI(1, ("In SMBLogoff for session disconnect")); |
| 559 | if (ses) |
| 560 | down(&ses->sesSem); |
| 561 | else |
| 562 | return -EIO; |
| 563 | |
| 564 | atomic_dec(&ses->inUse); |
| 565 | if (atomic_read(&ses->inUse) > 0) { |
| 566 | up(&ses->sesSem); |
| 567 | return -EBUSY; |
| 568 | } |
| 569 | rc = small_smb_init(SMB_COM_LOGOFF_ANDX, 2, NULL, (void **)&pSMB); |
| 570 | if (rc) { |
| 571 | up(&ses->sesSem); |
| 572 | return rc; |
| 573 | } |
| 574 | |
| 575 | smb_buffer_response = (struct smb_hdr *)pSMB; /* BB removeme BB */ |
| 576 | |
| 577 | if(ses->server) { |
Steve French | 1982c34 | 2005-08-17 12:38:22 -0700 | [diff] [blame] | 578 | pSMB->hdr.Mid = GetNextMid(ses->server); |
| 579 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 580 | if(ses->server->secMode & |
| 581 | (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) |
| 582 | pSMB->hdr.Flags2 |= SMBFLG2_SECURITY_SIGNATURE; |
| 583 | } |
| 584 | |
| 585 | pSMB->hdr.Uid = ses->Suid; |
| 586 | |
| 587 | pSMB->AndXCommand = 0xFF; |
| 588 | rc = SendReceive(xid, ses, (struct smb_hdr *) pSMB, |
| 589 | smb_buffer_response, &length, 0); |
| 590 | if (ses->server) { |
| 591 | atomic_dec(&ses->server->socketUseCount); |
| 592 | if (atomic_read(&ses->server->socketUseCount) == 0) { |
| 593 | spin_lock(&GlobalMid_Lock); |
| 594 | ses->server->tcpStatus = CifsExiting; |
| 595 | spin_unlock(&GlobalMid_Lock); |
| 596 | rc = -ESHUTDOWN; |
| 597 | } |
| 598 | } |
Steve French | a59c658 | 2005-08-17 12:12:19 -0700 | [diff] [blame] | 599 | up(&ses->sesSem); |
Steve French | 4a6d87f | 2005-08-13 08:15:54 -0700 | [diff] [blame] | 600 | cifs_small_buf_release(pSMB); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 601 | |
| 602 | /* if session dead then we do not need to do ulogoff, |
| 603 | since server closed smb session, no sense reporting |
| 604 | error */ |
| 605 | if (rc == -EAGAIN) |
| 606 | rc = 0; |
| 607 | return rc; |
| 608 | } |
| 609 | |
| 610 | int |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 611 | CIFSSMBDelFile(const int xid, struct cifsTconInfo *tcon, const char *fileName, |
| 612 | const struct nls_table *nls_codepage, int remap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 613 | { |
| 614 | DELETE_FILE_REQ *pSMB = NULL; |
| 615 | DELETE_FILE_RSP *pSMBr = NULL; |
| 616 | int rc = 0; |
| 617 | int bytes_returned; |
| 618 | int name_len; |
| 619 | |
| 620 | DelFileRetry: |
| 621 | rc = smb_init(SMB_COM_DELETE, 1, tcon, (void **) &pSMB, |
| 622 | (void **) &pSMBr); |
| 623 | if (rc) |
| 624 | return rc; |
| 625 | |
| 626 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 627 | name_len = |
Steve French | b1a4569 | 2005-05-17 16:07:23 -0500 | [diff] [blame] | 628 | cifsConvertToUCS((__le16 *) pSMB->fileName, fileName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 629 | PATH_MAX, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 630 | name_len++; /* trailing null */ |
| 631 | name_len *= 2; |
Steve French | 09d1db5 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 632 | } else { /* BB improve check for buffer overruns BB */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 633 | name_len = strnlen(fileName, PATH_MAX); |
| 634 | name_len++; /* trailing null */ |
| 635 | strncpy(pSMB->fileName, fileName, name_len); |
| 636 | } |
| 637 | pSMB->SearchAttributes = |
| 638 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM); |
| 639 | pSMB->BufferFormat = 0x04; |
| 640 | pSMB->hdr.smb_buf_length += name_len + 1; |
| 641 | pSMB->ByteCount = cpu_to_le16(name_len + 1); |
| 642 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 643 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 644 | cifs_stats_inc(&tcon->num_deletes); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 645 | if (rc) { |
| 646 | cFYI(1, ("Error in RMFile = %d", rc)); |
| 647 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 648 | |
| 649 | cifs_buf_release(pSMB); |
| 650 | if (rc == -EAGAIN) |
| 651 | goto DelFileRetry; |
| 652 | |
| 653 | return rc; |
| 654 | } |
| 655 | |
| 656 | int |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 657 | CIFSSMBRmDir(const int xid, struct cifsTconInfo *tcon, const char *dirName, |
| 658 | const struct nls_table *nls_codepage, int remap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 659 | { |
| 660 | DELETE_DIRECTORY_REQ *pSMB = NULL; |
| 661 | DELETE_DIRECTORY_RSP *pSMBr = NULL; |
| 662 | int rc = 0; |
| 663 | int bytes_returned; |
| 664 | int name_len; |
| 665 | |
| 666 | cFYI(1, ("In CIFSSMBRmDir")); |
| 667 | RmDirRetry: |
| 668 | rc = smb_init(SMB_COM_DELETE_DIRECTORY, 0, tcon, (void **) &pSMB, |
| 669 | (void **) &pSMBr); |
| 670 | if (rc) |
| 671 | return rc; |
| 672 | |
| 673 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 674 | name_len = cifsConvertToUCS((__le16 *) pSMB->DirName, dirName, |
| 675 | PATH_MAX, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 676 | name_len++; /* trailing null */ |
| 677 | name_len *= 2; |
Steve French | 09d1db5 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 678 | } else { /* BB improve check for buffer overruns BB */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 679 | name_len = strnlen(dirName, PATH_MAX); |
| 680 | name_len++; /* trailing null */ |
| 681 | strncpy(pSMB->DirName, dirName, name_len); |
| 682 | } |
| 683 | |
| 684 | pSMB->BufferFormat = 0x04; |
| 685 | pSMB->hdr.smb_buf_length += name_len + 1; |
| 686 | pSMB->ByteCount = cpu_to_le16(name_len + 1); |
| 687 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 688 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 689 | cifs_stats_inc(&tcon->num_rmdirs); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 690 | if (rc) { |
| 691 | cFYI(1, ("Error in RMDir = %d", rc)); |
| 692 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 693 | |
| 694 | cifs_buf_release(pSMB); |
| 695 | if (rc == -EAGAIN) |
| 696 | goto RmDirRetry; |
| 697 | return rc; |
| 698 | } |
| 699 | |
| 700 | int |
| 701 | CIFSSMBMkDir(const int xid, struct cifsTconInfo *tcon, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 702 | const char *name, const struct nls_table *nls_codepage, int remap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 703 | { |
| 704 | int rc = 0; |
| 705 | CREATE_DIRECTORY_REQ *pSMB = NULL; |
| 706 | CREATE_DIRECTORY_RSP *pSMBr = NULL; |
| 707 | int bytes_returned; |
| 708 | int name_len; |
| 709 | |
| 710 | cFYI(1, ("In CIFSSMBMkDir")); |
| 711 | MkDirRetry: |
| 712 | rc = smb_init(SMB_COM_CREATE_DIRECTORY, 0, tcon, (void **) &pSMB, |
| 713 | (void **) &pSMBr); |
| 714 | if (rc) |
| 715 | return rc; |
| 716 | |
| 717 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
Steve French | b1a4569 | 2005-05-17 16:07:23 -0500 | [diff] [blame] | 718 | name_len = cifsConvertToUCS((__le16 *) pSMB->DirName, name, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 719 | PATH_MAX, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 720 | name_len++; /* trailing null */ |
| 721 | name_len *= 2; |
Steve French | 09d1db5 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 722 | } else { /* BB improve check for buffer overruns BB */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 723 | name_len = strnlen(name, PATH_MAX); |
| 724 | name_len++; /* trailing null */ |
| 725 | strncpy(pSMB->DirName, name, name_len); |
| 726 | } |
| 727 | |
| 728 | pSMB->BufferFormat = 0x04; |
| 729 | pSMB->hdr.smb_buf_length += name_len + 1; |
| 730 | pSMB->ByteCount = cpu_to_le16(name_len + 1); |
| 731 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 732 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 733 | cifs_stats_inc(&tcon->num_mkdirs); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 734 | if (rc) { |
| 735 | cFYI(1, ("Error in Mkdir = %d", rc)); |
| 736 | } |
Steve French | a5a2b48 | 2005-08-20 21:42:53 -0700 | [diff] [blame] | 737 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 738 | cifs_buf_release(pSMB); |
| 739 | if (rc == -EAGAIN) |
| 740 | goto MkDirRetry; |
| 741 | return rc; |
| 742 | } |
| 743 | |
Steve French | a9d02ad | 2005-08-24 23:06:05 -0700 | [diff] [blame] | 744 | static __u16 convert_disposition(int disposition) |
| 745 | { |
| 746 | __u16 ofun = 0; |
| 747 | |
| 748 | switch (disposition) { |
| 749 | case FILE_SUPERSEDE: |
| 750 | ofun = SMBOPEN_OCREATE | SMBOPEN_OTRUNC; |
| 751 | break; |
| 752 | case FILE_OPEN: |
| 753 | ofun = SMBOPEN_OAPPEND; |
| 754 | break; |
| 755 | case FILE_CREATE: |
| 756 | ofun = SMBOPEN_OCREATE; |
| 757 | break; |
| 758 | case FILE_OPEN_IF: |
| 759 | ofun = SMBOPEN_OCREATE | SMBOPEN_OAPPEND; |
| 760 | break; |
| 761 | case FILE_OVERWRITE: |
| 762 | ofun = SMBOPEN_OTRUNC; |
| 763 | break; |
| 764 | case FILE_OVERWRITE_IF: |
| 765 | ofun = SMBOPEN_OCREATE | SMBOPEN_OTRUNC; |
| 766 | break; |
| 767 | default: |
| 768 | cFYI(1,("unknown disposition %d",disposition)); |
| 769 | ofun = SMBOPEN_OAPPEND; /* regular open */ |
| 770 | } |
| 771 | return ofun; |
| 772 | } |
| 773 | |
| 774 | int |
| 775 | SMBLegacyOpen(const int xid, struct cifsTconInfo *tcon, |
| 776 | const char *fileName, const int openDisposition, |
| 777 | const int access_flags, const int create_options, __u16 * netfid, |
| 778 | int *pOplock, FILE_ALL_INFO * pfile_info, |
| 779 | const struct nls_table *nls_codepage, int remap) |
| 780 | { |
| 781 | int rc = -EACCES; |
| 782 | OPENX_REQ *pSMB = NULL; |
| 783 | OPENX_RSP *pSMBr = NULL; |
| 784 | int bytes_returned; |
| 785 | int name_len; |
| 786 | __u16 count; |
| 787 | |
| 788 | OldOpenRetry: |
| 789 | rc = smb_init(SMB_COM_OPEN_ANDX, 15, tcon, (void **) &pSMB, |
| 790 | (void **) &pSMBr); |
| 791 | if (rc) |
| 792 | return rc; |
| 793 | |
| 794 | pSMB->AndXCommand = 0xFF; /* none */ |
| 795 | |
| 796 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 797 | count = 1; /* account for one byte pad to word boundary */ |
| 798 | name_len = |
| 799 | cifsConvertToUCS((__le16 *) (pSMB->fileName + 1), |
| 800 | fileName, PATH_MAX, nls_codepage, remap); |
| 801 | name_len++; /* trailing null */ |
| 802 | name_len *= 2; |
| 803 | } else { /* BB improve check for buffer overruns BB */ |
| 804 | count = 0; /* no pad */ |
| 805 | name_len = strnlen(fileName, PATH_MAX); |
| 806 | name_len++; /* trailing null */ |
| 807 | strncpy(pSMB->fileName, fileName, name_len); |
| 808 | } |
| 809 | if (*pOplock & REQ_OPLOCK) |
| 810 | pSMB->OpenFlags = cpu_to_le16(REQ_OPLOCK); |
| 811 | else if (*pOplock & REQ_BATCHOPLOCK) { |
| 812 | pSMB->OpenFlags = cpu_to_le16(REQ_BATCHOPLOCK); |
| 813 | } |
| 814 | pSMB->OpenFlags |= cpu_to_le16(REQ_MORE_INFO); |
| 815 | /* BB fixme add conversion for access_flags to bits 0 - 2 of mode */ |
| 816 | /* 0 = read |
| 817 | 1 = write |
| 818 | 2 = rw |
| 819 | 3 = execute |
| 820 | */ |
| 821 | pSMB->Mode = cpu_to_le16(2); |
| 822 | pSMB->Mode |= cpu_to_le16(0x40); /* deny none */ |
| 823 | /* set file as system file if special file such |
| 824 | as fifo and server expecting SFU style and |
| 825 | no Unix extensions */ |
| 826 | |
| 827 | if(create_options & CREATE_OPTION_SPECIAL) |
| 828 | pSMB->FileAttributes = cpu_to_le16(ATTR_SYSTEM); |
| 829 | else |
Steve French | 3e87d80 | 2005-09-18 20:49:21 -0700 | [diff] [blame] | 830 | pSMB->FileAttributes = cpu_to_le16(0/*ATTR_NORMAL*/); /* BB FIXME */ |
Steve French | a9d02ad | 2005-08-24 23:06:05 -0700 | [diff] [blame] | 831 | |
| 832 | /* if ((omode & S_IWUGO) == 0) |
| 833 | pSMB->FileAttributes |= cpu_to_le32(ATTR_READONLY);*/ |
| 834 | /* Above line causes problems due to vfs splitting create into two |
| 835 | pieces - need to set mode after file created not while it is |
| 836 | being created */ |
| 837 | |
| 838 | /* BB FIXME BB */ |
| 839 | /* pSMB->CreateOptions = cpu_to_le32(create_options & CREATE_OPTIONS_MASK); */ |
| 840 | /* BB FIXME END BB */ |
Steve French | 3e87d80 | 2005-09-18 20:49:21 -0700 | [diff] [blame] | 841 | |
| 842 | pSMB->Sattr = cpu_to_le16(ATTR_HIDDEN | ATTR_SYSTEM | ATTR_DIRECTORY); |
Steve French | 70ca734 | 2005-09-22 16:32:06 -0700 | [diff] [blame] | 843 | pSMB->OpenFunction = cpu_to_le16(convert_disposition(openDisposition)); |
Steve French | a9d02ad | 2005-08-24 23:06:05 -0700 | [diff] [blame] | 844 | count += name_len; |
| 845 | pSMB->hdr.smb_buf_length += count; |
| 846 | |
| 847 | pSMB->ByteCount = cpu_to_le16(count); |
| 848 | /* long_op set to 1 to allow for oplock break timeouts */ |
| 849 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 850 | (struct smb_hdr *) pSMBr, &bytes_returned, 1); |
| 851 | cifs_stats_inc(&tcon->num_opens); |
| 852 | if (rc) { |
| 853 | cFYI(1, ("Error in Open = %d", rc)); |
| 854 | } else { |
| 855 | /* BB verify if wct == 15 */ |
| 856 | |
| 857 | /* *pOplock = pSMBr->OplockLevel; */ /* BB take from action field BB */ |
| 858 | |
| 859 | *netfid = pSMBr->Fid; /* cifs fid stays in le */ |
| 860 | /* Let caller know file was created so we can set the mode. */ |
| 861 | /* Do we care about the CreateAction in any other cases? */ |
| 862 | /* BB FIXME BB */ |
| 863 | /* if(cpu_to_le32(FILE_CREATE) == pSMBr->CreateAction) |
| 864 | *pOplock |= CIFS_CREATE_ACTION; */ |
| 865 | /* BB FIXME END */ |
| 866 | |
| 867 | if(pfile_info) { |
| 868 | pfile_info->CreationTime = 0; /* BB convert CreateTime*/ |
| 869 | pfile_info->LastAccessTime = 0; /* BB fixme */ |
| 870 | pfile_info->LastWriteTime = 0; /* BB fixme */ |
| 871 | pfile_info->ChangeTime = 0; /* BB fixme */ |
Steve French | 70ca734 | 2005-09-22 16:32:06 -0700 | [diff] [blame] | 872 | pfile_info->Attributes = |
| 873 | cpu_to_le32(le16_to_cpu(pSMBr->FileAttributes)); |
Steve French | a9d02ad | 2005-08-24 23:06:05 -0700 | [diff] [blame] | 874 | /* the file_info buf is endian converted by caller */ |
Steve French | 70ca734 | 2005-09-22 16:32:06 -0700 | [diff] [blame] | 875 | pfile_info->AllocationSize = |
| 876 | cpu_to_le64(le32_to_cpu(pSMBr->EndOfFile)); |
| 877 | pfile_info->EndOfFile = pfile_info->AllocationSize; |
Steve French | a9d02ad | 2005-08-24 23:06:05 -0700 | [diff] [blame] | 878 | pfile_info->NumberOfLinks = cpu_to_le32(1); |
| 879 | } |
| 880 | } |
| 881 | |
| 882 | cifs_buf_release(pSMB); |
| 883 | if (rc == -EAGAIN) |
| 884 | goto OldOpenRetry; |
| 885 | return rc; |
| 886 | } |
| 887 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 888 | int |
| 889 | CIFSSMBOpen(const int xid, struct cifsTconInfo *tcon, |
| 890 | const char *fileName, const int openDisposition, |
| 891 | const int access_flags, const int create_options, __u16 * netfid, |
| 892 | int *pOplock, FILE_ALL_INFO * pfile_info, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 893 | const struct nls_table *nls_codepage, int remap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 894 | { |
| 895 | int rc = -EACCES; |
| 896 | OPEN_REQ *pSMB = NULL; |
| 897 | OPEN_RSP *pSMBr = NULL; |
| 898 | int bytes_returned; |
| 899 | int name_len; |
| 900 | __u16 count; |
| 901 | |
| 902 | openRetry: |
| 903 | rc = smb_init(SMB_COM_NT_CREATE_ANDX, 24, tcon, (void **) &pSMB, |
| 904 | (void **) &pSMBr); |
| 905 | if (rc) |
| 906 | return rc; |
| 907 | |
| 908 | pSMB->AndXCommand = 0xFF; /* none */ |
| 909 | |
| 910 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 911 | count = 1; /* account for one byte pad to word boundary */ |
| 912 | name_len = |
Steve French | b1a4569 | 2005-05-17 16:07:23 -0500 | [diff] [blame] | 913 | cifsConvertToUCS((__le16 *) (pSMB->fileName + 1), |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 914 | fileName, PATH_MAX, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 915 | name_len++; /* trailing null */ |
| 916 | name_len *= 2; |
| 917 | pSMB->NameLength = cpu_to_le16(name_len); |
Steve French | 09d1db5 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 918 | } else { /* BB improve check for buffer overruns BB */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 919 | count = 0; /* no pad */ |
| 920 | name_len = strnlen(fileName, PATH_MAX); |
| 921 | name_len++; /* trailing null */ |
| 922 | pSMB->NameLength = cpu_to_le16(name_len); |
| 923 | strncpy(pSMB->fileName, fileName, name_len); |
| 924 | } |
| 925 | if (*pOplock & REQ_OPLOCK) |
| 926 | pSMB->OpenFlags = cpu_to_le32(REQ_OPLOCK); |
| 927 | else if (*pOplock & REQ_BATCHOPLOCK) { |
| 928 | pSMB->OpenFlags = cpu_to_le32(REQ_BATCHOPLOCK); |
| 929 | } |
| 930 | pSMB->DesiredAccess = cpu_to_le32(access_flags); |
| 931 | pSMB->AllocationSize = 0; |
Steve French | eda3c029 | 2005-07-21 15:20:28 -0700 | [diff] [blame] | 932 | /* set file as system file if special file such |
| 933 | as fifo and server expecting SFU style and |
| 934 | no Unix extensions */ |
| 935 | if(create_options & CREATE_OPTION_SPECIAL) |
| 936 | pSMB->FileAttributes = cpu_to_le32(ATTR_SYSTEM); |
| 937 | else |
| 938 | pSMB->FileAttributes = cpu_to_le32(ATTR_NORMAL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 939 | /* XP does not handle ATTR_POSIX_SEMANTICS */ |
| 940 | /* but it helps speed up case sensitive checks for other |
| 941 | servers such as Samba */ |
| 942 | if (tcon->ses->capabilities & CAP_UNIX) |
| 943 | pSMB->FileAttributes |= cpu_to_le32(ATTR_POSIX_SEMANTICS); |
| 944 | |
| 945 | /* if ((omode & S_IWUGO) == 0) |
| 946 | pSMB->FileAttributes |= cpu_to_le32(ATTR_READONLY);*/ |
| 947 | /* Above line causes problems due to vfs splitting create into two |
| 948 | pieces - need to set mode after file created not while it is |
| 949 | being created */ |
| 950 | pSMB->ShareAccess = cpu_to_le32(FILE_SHARE_ALL); |
| 951 | pSMB->CreateDisposition = cpu_to_le32(openDisposition); |
Steve French | eda3c029 | 2005-07-21 15:20:28 -0700 | [diff] [blame] | 952 | pSMB->CreateOptions = cpu_to_le32(create_options & CREATE_OPTIONS_MASK); |
Steve French | 09d1db5 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 953 | /* BB Expirement with various impersonation levels and verify */ |
| 954 | pSMB->ImpersonationLevel = cpu_to_le32(SECURITY_IMPERSONATION); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 955 | pSMB->SecurityFlags = |
| 956 | SECURITY_CONTEXT_TRACKING | SECURITY_EFFECTIVE_ONLY; |
| 957 | |
| 958 | count += name_len; |
| 959 | pSMB->hdr.smb_buf_length += count; |
| 960 | |
| 961 | pSMB->ByteCount = cpu_to_le16(count); |
| 962 | /* long_op set to 1 to allow for oplock break timeouts */ |
| 963 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 964 | (struct smb_hdr *) pSMBr, &bytes_returned, 1); |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 965 | cifs_stats_inc(&tcon->num_opens); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 966 | if (rc) { |
| 967 | cFYI(1, ("Error in Open = %d", rc)); |
| 968 | } else { |
Steve French | 09d1db5 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 969 | *pOplock = pSMBr->OplockLevel; /* 1 byte no need to le_to_cpu */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 970 | *netfid = pSMBr->Fid; /* cifs fid stays in le */ |
| 971 | /* Let caller know file was created so we can set the mode. */ |
| 972 | /* Do we care about the CreateAction in any other cases? */ |
| 973 | if(cpu_to_le32(FILE_CREATE) == pSMBr->CreateAction) |
| 974 | *pOplock |= CIFS_CREATE_ACTION; |
| 975 | if(pfile_info) { |
| 976 | memcpy((char *)pfile_info,(char *)&pSMBr->CreationTime, |
| 977 | 36 /* CreationTime to Attributes */); |
| 978 | /* the file_info buf is endian converted by caller */ |
| 979 | pfile_info->AllocationSize = pSMBr->AllocationSize; |
| 980 | pfile_info->EndOfFile = pSMBr->EndOfFile; |
| 981 | pfile_info->NumberOfLinks = cpu_to_le32(1); |
| 982 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 983 | } |
Steve French | a5a2b48 | 2005-08-20 21:42:53 -0700 | [diff] [blame] | 984 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 985 | cifs_buf_release(pSMB); |
| 986 | if (rc == -EAGAIN) |
| 987 | goto openRetry; |
| 988 | return rc; |
| 989 | } |
| 990 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 991 | int |
| 992 | CIFSSMBRead(const int xid, struct cifsTconInfo *tcon, |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 993 | const int netfid, const unsigned int count, |
| 994 | const __u64 lseek, unsigned int *nbytes, char **buf, |
| 995 | int * pbuf_type) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 996 | { |
| 997 | int rc = -EACCES; |
| 998 | READ_REQ *pSMB = NULL; |
| 999 | READ_RSP *pSMBr = NULL; |
| 1000 | char *pReadData = NULL; |
Steve French | bfa0d75 | 2005-08-31 21:50:37 -0700 | [diff] [blame] | 1001 | int wct; |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1002 | int resp_buf_type = 0; |
| 1003 | struct kvec iov[1]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1004 | |
| 1005 | cFYI(1,("Reading %d bytes on fid %d",count,netfid)); |
Steve French | bfa0d75 | 2005-08-31 21:50:37 -0700 | [diff] [blame] | 1006 | if(tcon->ses->capabilities & CAP_LARGE_FILES) |
| 1007 | wct = 12; |
| 1008 | else |
| 1009 | wct = 10; /* old style read */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1010 | |
| 1011 | *nbytes = 0; |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1012 | rc = small_smb_init(SMB_COM_READ_ANDX, wct, tcon, (void **) &pSMB); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1013 | if (rc) |
| 1014 | return rc; |
| 1015 | |
| 1016 | /* tcon and ses pointer are checked in smb_init */ |
| 1017 | if (tcon->ses->server == NULL) |
| 1018 | return -ECONNABORTED; |
| 1019 | |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1020 | pSMB->AndXCommand = 0xFF; /* none */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1021 | pSMB->Fid = netfid; |
| 1022 | pSMB->OffsetLow = cpu_to_le32(lseek & 0xFFFFFFFF); |
Steve French | bfa0d75 | 2005-08-31 21:50:37 -0700 | [diff] [blame] | 1023 | if(wct == 12) |
| 1024 | pSMB->OffsetHigh = cpu_to_le32(lseek >> 32); |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1025 | else if((lseek >> 32) > 0) /* can not handle this big offset for old */ |
| 1026 | return -EIO; |
Steve French | bfa0d75 | 2005-08-31 21:50:37 -0700 | [diff] [blame] | 1027 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1028 | pSMB->Remaining = 0; |
| 1029 | pSMB->MaxCount = cpu_to_le16(count & 0xFFFF); |
| 1030 | pSMB->MaxCountHigh = cpu_to_le32(count >> 16); |
Steve French | bfa0d75 | 2005-08-31 21:50:37 -0700 | [diff] [blame] | 1031 | if(wct == 12) |
| 1032 | pSMB->ByteCount = 0; /* no need to do le conversion since 0 */ |
| 1033 | else { |
| 1034 | /* old style read */ |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1035 | struct smb_com_readx_req * pSMBW = |
Steve French | bfa0d75 | 2005-08-31 21:50:37 -0700 | [diff] [blame] | 1036 | (struct smb_com_readx_req *)pSMB; |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1037 | pSMBW->ByteCount = 0; |
Steve French | bfa0d75 | 2005-08-31 21:50:37 -0700 | [diff] [blame] | 1038 | } |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1039 | |
| 1040 | iov[0].iov_base = (char *)pSMB; |
| 1041 | iov[0].iov_len = pSMB->hdr.smb_buf_length + 4; |
| 1042 | rc = SendReceive2(xid, tcon->ses, iov, |
| 1043 | 1 /* num iovecs */, |
| 1044 | &resp_buf_type, 0); |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 1045 | cifs_stats_inc(&tcon->num_reads); |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1046 | pSMBr = (READ_RSP *)iov[0].iov_base; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1047 | if (rc) { |
| 1048 | cERROR(1, ("Send error in read = %d", rc)); |
| 1049 | } else { |
| 1050 | int data_length = le16_to_cpu(pSMBr->DataLengthHigh); |
| 1051 | data_length = data_length << 16; |
| 1052 | data_length += le16_to_cpu(pSMBr->DataLength); |
| 1053 | *nbytes = data_length; |
| 1054 | |
| 1055 | /*check that DataLength would not go beyond end of SMB */ |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1056 | if ((data_length > CIFSMaxBufSize) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1057 | || (data_length > count)) { |
| 1058 | cFYI(1,("bad length %d for count %d",data_length,count)); |
| 1059 | rc = -EIO; |
| 1060 | *nbytes = 0; |
| 1061 | } else { |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1062 | pReadData = (char *) (&pSMBr->hdr.Protocol) + |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1063 | le16_to_cpu(pSMBr->DataOffset); |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1064 | /* if(rc = copy_to_user(buf, pReadData, data_length)) { |
| 1065 | cERROR(1,("Faulting on read rc = %d",rc)); |
| 1066 | rc = -EFAULT; |
| 1067 | }*/ /* can not use copy_to_user when using page cache*/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1068 | if(*buf) |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1069 | memcpy(*buf,pReadData,data_length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1070 | } |
| 1071 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1072 | |
Steve French | 4b8f930 | 2006-02-26 16:41:18 +0000 | [diff] [blame] | 1073 | /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */ |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1074 | if(*buf) { |
| 1075 | if(resp_buf_type == CIFS_SMALL_BUFFER) |
| 1076 | cifs_small_buf_release(iov[0].iov_base); |
| 1077 | else if(resp_buf_type == CIFS_LARGE_BUFFER) |
| 1078 | cifs_buf_release(iov[0].iov_base); |
Steve French | 6cec2ae | 2006-02-22 17:31:52 -0600 | [diff] [blame] | 1079 | } else if(resp_buf_type != CIFS_NO_BUFFER) { |
| 1080 | /* return buffer to caller to free */ |
| 1081 | *buf = iov[0].iov_base; |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1082 | if(resp_buf_type == CIFS_SMALL_BUFFER) |
| 1083 | *pbuf_type = CIFS_SMALL_BUFFER; |
| 1084 | else if(resp_buf_type == CIFS_LARGE_BUFFER) |
| 1085 | *pbuf_type = CIFS_LARGE_BUFFER; |
Steve French | 6cec2ae | 2006-02-22 17:31:52 -0600 | [diff] [blame] | 1086 | } /* else no valid buffer on return - leave as null */ |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1087 | |
| 1088 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1089 | since file handle passed in no longer valid */ |
| 1090 | return rc; |
| 1091 | } |
| 1092 | |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1093 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1094 | int |
| 1095 | CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon, |
| 1096 | const int netfid, const unsigned int count, |
| 1097 | const __u64 offset, unsigned int *nbytes, const char *buf, |
| 1098 | const char __user * ubuf, const int long_op) |
| 1099 | { |
| 1100 | int rc = -EACCES; |
| 1101 | WRITE_REQ *pSMB = NULL; |
| 1102 | WRITE_RSP *pSMBr = NULL; |
Steve French | 1c95518 | 2005-08-30 20:58:07 -0700 | [diff] [blame] | 1103 | int bytes_returned, wct; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1104 | __u32 bytes_sent; |
| 1105 | __u16 byte_count; |
| 1106 | |
| 1107 | /* cFYI(1,("write at %lld %d bytes",offset,count));*/ |
Steve French | 1c95518 | 2005-08-30 20:58:07 -0700 | [diff] [blame] | 1108 | if(tcon->ses == NULL) |
| 1109 | return -ECONNABORTED; |
| 1110 | |
| 1111 | if(tcon->ses->capabilities & CAP_LARGE_FILES) |
| 1112 | wct = 14; |
| 1113 | else |
| 1114 | wct = 12; |
| 1115 | |
| 1116 | rc = smb_init(SMB_COM_WRITE_ANDX, wct, tcon, (void **) &pSMB, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1117 | (void **) &pSMBr); |
| 1118 | if (rc) |
| 1119 | return rc; |
| 1120 | /* tcon and ses pointer are checked in smb_init */ |
| 1121 | if (tcon->ses->server == NULL) |
| 1122 | return -ECONNABORTED; |
| 1123 | |
| 1124 | pSMB->AndXCommand = 0xFF; /* none */ |
| 1125 | pSMB->Fid = netfid; |
| 1126 | pSMB->OffsetLow = cpu_to_le32(offset & 0xFFFFFFFF); |
Steve French | 1c95518 | 2005-08-30 20:58:07 -0700 | [diff] [blame] | 1127 | if(wct == 14) |
| 1128 | pSMB->OffsetHigh = cpu_to_le32(offset >> 32); |
| 1129 | else if((offset >> 32) > 0) /* can not handle this big offset for old */ |
| 1130 | return -EIO; |
| 1131 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1132 | pSMB->Reserved = 0xFFFFFFFF; |
| 1133 | pSMB->WriteMode = 0; |
| 1134 | pSMB->Remaining = 0; |
| 1135 | |
| 1136 | /* Can increase buffer size if buffer is big enough in some cases - ie we |
| 1137 | can send more if LARGE_WRITE_X capability returned by the server and if |
| 1138 | our buffer is big enough or if we convert to iovecs on socket writes |
| 1139 | and eliminate the copy to the CIFS buffer */ |
| 1140 | if(tcon->ses->capabilities & CAP_LARGE_WRITE_X) { |
| 1141 | bytes_sent = min_t(const unsigned int, CIFSMaxBufSize, count); |
| 1142 | } else { |
| 1143 | bytes_sent = (tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) |
| 1144 | & ~0xFF; |
| 1145 | } |
| 1146 | |
| 1147 | if (bytes_sent > count) |
| 1148 | bytes_sent = count; |
| 1149 | pSMB->DataOffset = |
Steve French | e30dcf3 | 2005-09-20 20:49:16 -0700 | [diff] [blame] | 1150 | cpu_to_le16(offsetof(struct smb_com_write_req,Data) - 4); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1151 | if(buf) |
| 1152 | memcpy(pSMB->Data,buf,bytes_sent); |
| 1153 | else if(ubuf) { |
| 1154 | if(copy_from_user(pSMB->Data,ubuf,bytes_sent)) { |
| 1155 | cifs_buf_release(pSMB); |
| 1156 | return -EFAULT; |
| 1157 | } |
Steve French | e30dcf3 | 2005-09-20 20:49:16 -0700 | [diff] [blame] | 1158 | } else if (count != 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1159 | /* No buffer */ |
| 1160 | cifs_buf_release(pSMB); |
| 1161 | return -EINVAL; |
Steve French | e30dcf3 | 2005-09-20 20:49:16 -0700 | [diff] [blame] | 1162 | } /* else setting file size with write of zero bytes */ |
| 1163 | if(wct == 14) |
| 1164 | byte_count = bytes_sent + 1; /* pad */ |
| 1165 | else /* wct == 12 */ { |
| 1166 | byte_count = bytes_sent + 5; /* bigger pad, smaller smb hdr */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1167 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1168 | pSMB->DataLengthLow = cpu_to_le16(bytes_sent & 0xFFFF); |
| 1169 | pSMB->DataLengthHigh = cpu_to_le16(bytes_sent >> 16); |
Steve French | e30dcf3 | 2005-09-20 20:49:16 -0700 | [diff] [blame] | 1170 | pSMB->hdr.smb_buf_length += byte_count; |
Steve French | 1c95518 | 2005-08-30 20:58:07 -0700 | [diff] [blame] | 1171 | |
| 1172 | if(wct == 14) |
| 1173 | pSMB->ByteCount = cpu_to_le16(byte_count); |
Steve French | e30dcf3 | 2005-09-20 20:49:16 -0700 | [diff] [blame] | 1174 | else { /* old style write has byte count 4 bytes earlier so 4 bytes pad */ |
Steve French | 1c95518 | 2005-08-30 20:58:07 -0700 | [diff] [blame] | 1175 | struct smb_com_writex_req * pSMBW = |
| 1176 | (struct smb_com_writex_req *)pSMB; |
| 1177 | pSMBW->ByteCount = cpu_to_le16(byte_count); |
| 1178 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1179 | |
| 1180 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 1181 | (struct smb_hdr *) pSMBr, &bytes_returned, long_op); |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 1182 | cifs_stats_inc(&tcon->num_writes); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1183 | if (rc) { |
| 1184 | cFYI(1, ("Send error in write = %d", rc)); |
| 1185 | *nbytes = 0; |
| 1186 | } else { |
| 1187 | *nbytes = le16_to_cpu(pSMBr->CountHigh); |
| 1188 | *nbytes = (*nbytes) << 16; |
| 1189 | *nbytes += le16_to_cpu(pSMBr->Count); |
| 1190 | } |
| 1191 | |
| 1192 | cifs_buf_release(pSMB); |
| 1193 | |
| 1194 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
| 1195 | since file handle passed in no longer valid */ |
| 1196 | |
| 1197 | return rc; |
| 1198 | } |
| 1199 | |
Steve French | d6e04ae | 2005-06-13 13:24:43 -0500 | [diff] [blame] | 1200 | int |
| 1201 | CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1202 | const int netfid, const unsigned int count, |
Steve French | 3e84469 | 2005-10-03 13:37:24 -0700 | [diff] [blame] | 1203 | const __u64 offset, unsigned int *nbytes, struct kvec *iov, |
| 1204 | int n_vec, const int long_op) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1205 | { |
| 1206 | int rc = -EACCES; |
| 1207 | WRITE_REQ *pSMB = NULL; |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1208 | int wct; |
Steve French | d6e04ae | 2005-06-13 13:24:43 -0500 | [diff] [blame] | 1209 | int smb_hdr_len; |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1210 | int resp_buf_type = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1211 | |
Steve French | ff7feac | 2005-11-15 16:45:16 -0800 | [diff] [blame] | 1212 | cFYI(1,("write2 at %lld %d bytes", (long long)offset, count)); |
| 1213 | |
Steve French | 8cc64c6 | 2005-10-03 13:49:43 -0700 | [diff] [blame] | 1214 | if(tcon->ses->capabilities & CAP_LARGE_FILES) |
| 1215 | wct = 14; |
| 1216 | else |
| 1217 | wct = 12; |
| 1218 | rc = small_smb_init(SMB_COM_WRITE_ANDX, wct, tcon, (void **) &pSMB); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1219 | if (rc) |
| 1220 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1221 | /* tcon and ses pointer are checked in smb_init */ |
| 1222 | if (tcon->ses->server == NULL) |
| 1223 | return -ECONNABORTED; |
| 1224 | |
Steve French | d6e04ae | 2005-06-13 13:24:43 -0500 | [diff] [blame] | 1225 | pSMB->AndXCommand = 0xFF; /* none */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1226 | pSMB->Fid = netfid; |
| 1227 | pSMB->OffsetLow = cpu_to_le32(offset & 0xFFFFFFFF); |
Steve French | 8cc64c6 | 2005-10-03 13:49:43 -0700 | [diff] [blame] | 1228 | if(wct == 14) |
| 1229 | pSMB->OffsetHigh = cpu_to_le32(offset >> 32); |
| 1230 | else if((offset >> 32) > 0) /* can not handle this big offset for old */ |
| 1231 | return -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1232 | pSMB->Reserved = 0xFFFFFFFF; |
| 1233 | pSMB->WriteMode = 0; |
| 1234 | pSMB->Remaining = 0; |
Steve French | d6e04ae | 2005-06-13 13:24:43 -0500 | [diff] [blame] | 1235 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1236 | pSMB->DataOffset = |
| 1237 | cpu_to_le16(offsetof(struct smb_com_write_req,Data) - 4); |
| 1238 | |
Steve French | 3e84469 | 2005-10-03 13:37:24 -0700 | [diff] [blame] | 1239 | pSMB->DataLengthLow = cpu_to_le16(count & 0xFFFF); |
| 1240 | pSMB->DataLengthHigh = cpu_to_le16(count >> 16); |
Steve French | d6e04ae | 2005-06-13 13:24:43 -0500 | [diff] [blame] | 1241 | smb_hdr_len = pSMB->hdr.smb_buf_length + 1; /* hdr + 1 byte pad */ |
Steve French | 8cc64c6 | 2005-10-03 13:49:43 -0700 | [diff] [blame] | 1242 | if(wct == 14) |
| 1243 | pSMB->hdr.smb_buf_length += count+1; |
| 1244 | else /* wct == 12 */ |
| 1245 | pSMB->hdr.smb_buf_length += count+5; /* smb data starts later */ |
| 1246 | if(wct == 14) |
| 1247 | pSMB->ByteCount = cpu_to_le16(count + 1); |
| 1248 | else /* wct == 12 */ /* bigger pad, smaller smb hdr, keep offset ok */ { |
| 1249 | struct smb_com_writex_req * pSMBW = |
| 1250 | (struct smb_com_writex_req *)pSMB; |
| 1251 | pSMBW->ByteCount = cpu_to_le16(count + 5); |
| 1252 | } |
Steve French | 3e84469 | 2005-10-03 13:37:24 -0700 | [diff] [blame] | 1253 | iov[0].iov_base = pSMB; |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1254 | if(wct == 14) |
| 1255 | iov[0].iov_len = smb_hdr_len + 4; |
| 1256 | else /* wct == 12 pad bigger by four bytes */ |
| 1257 | iov[0].iov_len = smb_hdr_len + 8; |
| 1258 | |
Steve French | 3e84469 | 2005-10-03 13:37:24 -0700 | [diff] [blame] | 1259 | |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1260 | rc = SendReceive2(xid, tcon->ses, iov, n_vec + 1, &resp_buf_type, |
Steve French | 3e84469 | 2005-10-03 13:37:24 -0700 | [diff] [blame] | 1261 | long_op); |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 1262 | cifs_stats_inc(&tcon->num_writes); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1263 | if (rc) { |
Steve French | 8cc64c6 | 2005-10-03 13:49:43 -0700 | [diff] [blame] | 1264 | cFYI(1, ("Send error Write2 = %d", rc)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1265 | *nbytes = 0; |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1266 | } else if(resp_buf_type == 0) { |
| 1267 | /* presumably this can not happen, but best to be safe */ |
| 1268 | rc = -EIO; |
| 1269 | *nbytes = 0; |
Steve French | d6e04ae | 2005-06-13 13:24:43 -0500 | [diff] [blame] | 1270 | } else { |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1271 | WRITE_RSP * pSMBr = (WRITE_RSP *)iov[0].iov_base; |
Steve French | d6e04ae | 2005-06-13 13:24:43 -0500 | [diff] [blame] | 1272 | *nbytes = le16_to_cpu(pSMBr->CountHigh); |
| 1273 | *nbytes = (*nbytes) << 16; |
| 1274 | *nbytes += le16_to_cpu(pSMBr->Count); |
Steve French | 84afc29 | 2005-12-02 13:32:45 -0800 | [diff] [blame] | 1275 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1276 | |
Steve French | 4b8f930 | 2006-02-26 16:41:18 +0000 | [diff] [blame] | 1277 | /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */ |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1278 | if(resp_buf_type == CIFS_SMALL_BUFFER) |
| 1279 | cifs_small_buf_release(iov[0].iov_base); |
| 1280 | else if(resp_buf_type == CIFS_LARGE_BUFFER) |
| 1281 | cifs_buf_release(iov[0].iov_base); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1282 | |
| 1283 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
| 1284 | since file handle passed in no longer valid */ |
| 1285 | |
| 1286 | return rc; |
| 1287 | } |
Steve French | d6e04ae | 2005-06-13 13:24:43 -0500 | [diff] [blame] | 1288 | |
| 1289 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1290 | int |
| 1291 | CIFSSMBLock(const int xid, struct cifsTconInfo *tcon, |
| 1292 | const __u16 smb_file_id, const __u64 len, |
| 1293 | const __u64 offset, const __u32 numUnlock, |
| 1294 | const __u32 numLock, const __u8 lockType, const int waitFlag) |
| 1295 | { |
| 1296 | int rc = 0; |
| 1297 | LOCK_REQ *pSMB = NULL; |
| 1298 | LOCK_RSP *pSMBr = NULL; |
| 1299 | int bytes_returned; |
| 1300 | int timeout = 0; |
| 1301 | __u16 count; |
| 1302 | |
| 1303 | cFYI(1, ("In CIFSSMBLock - timeout %d numLock %d",waitFlag,numLock)); |
Steve French | 46810cb | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 1304 | rc = small_smb_init(SMB_COM_LOCKING_ANDX, 8, tcon, (void **) &pSMB); |
| 1305 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1306 | if (rc) |
| 1307 | return rc; |
| 1308 | |
Steve French | 46810cb | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 1309 | pSMBr = (LOCK_RSP *)pSMB; /* BB removeme BB */ |
| 1310 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1311 | if(lockType == LOCKING_ANDX_OPLOCK_RELEASE) { |
| 1312 | timeout = -1; /* no response expected */ |
| 1313 | pSMB->Timeout = 0; |
| 1314 | } else if (waitFlag == TRUE) { |
| 1315 | timeout = 3; /* blocking operation, no timeout */ |
| 1316 | pSMB->Timeout = cpu_to_le32(-1);/* blocking - do not time out */ |
| 1317 | } else { |
| 1318 | pSMB->Timeout = 0; |
| 1319 | } |
| 1320 | |
| 1321 | pSMB->NumberOfLocks = cpu_to_le16(numLock); |
| 1322 | pSMB->NumberOfUnlocks = cpu_to_le16(numUnlock); |
| 1323 | pSMB->LockType = lockType; |
| 1324 | pSMB->AndXCommand = 0xFF; /* none */ |
| 1325 | pSMB->Fid = smb_file_id; /* netfid stays le */ |
| 1326 | |
| 1327 | if((numLock != 0) || (numUnlock != 0)) { |
| 1328 | pSMB->Locks[0].Pid = cpu_to_le16(current->tgid); |
| 1329 | /* BB where to store pid high? */ |
| 1330 | pSMB->Locks[0].LengthLow = cpu_to_le32((u32)len); |
| 1331 | pSMB->Locks[0].LengthHigh = cpu_to_le32((u32)(len>>32)); |
| 1332 | pSMB->Locks[0].OffsetLow = cpu_to_le32((u32)offset); |
| 1333 | pSMB->Locks[0].OffsetHigh = cpu_to_le32((u32)(offset>>32)); |
| 1334 | count = sizeof(LOCKING_ANDX_RANGE); |
| 1335 | } else { |
| 1336 | /* oplock break */ |
| 1337 | count = 0; |
| 1338 | } |
| 1339 | pSMB->hdr.smb_buf_length += count; |
| 1340 | pSMB->ByteCount = cpu_to_le16(count); |
| 1341 | |
| 1342 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 1343 | (struct smb_hdr *) pSMBr, &bytes_returned, timeout); |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 1344 | cifs_stats_inc(&tcon->num_locks); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1345 | if (rc) { |
| 1346 | cFYI(1, ("Send error in Lock = %d", rc)); |
| 1347 | } |
Steve French | 46810cb | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 1348 | cifs_small_buf_release(pSMB); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1349 | |
| 1350 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
| 1351 | since file handle passed in no longer valid */ |
| 1352 | return rc; |
| 1353 | } |
| 1354 | |
| 1355 | int |
Steve French | 08547b0 | 2006-02-28 22:39:25 +0000 | [diff] [blame] | 1356 | CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon, |
| 1357 | const __u16 smb_file_id, const int get_flag, const __u64 len, |
Steve French | fc94cdb | 2006-05-30 18:03:32 +0000 | [diff] [blame] | 1358 | struct file_lock *pLockData, const __u16 lock_type, |
| 1359 | const int waitFlag) |
Steve French | 08547b0 | 2006-02-28 22:39:25 +0000 | [diff] [blame] | 1360 | { |
| 1361 | struct smb_com_transaction2_sfi_req *pSMB = NULL; |
| 1362 | struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; |
| 1363 | char *data_offset; |
| 1364 | struct cifs_posix_lock *parm_data; |
| 1365 | int rc = 0; |
| 1366 | int bytes_returned = 0; |
| 1367 | __u16 params, param_offset, offset, byte_count, count; |
| 1368 | |
| 1369 | cFYI(1, ("Posix Lock")); |
Steve French | fc94cdb | 2006-05-30 18:03:32 +0000 | [diff] [blame] | 1370 | |
| 1371 | if(pLockData == NULL) |
| 1372 | return EINVAL; |
| 1373 | |
Steve French | 08547b0 | 2006-02-28 22:39:25 +0000 | [diff] [blame] | 1374 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
| 1375 | |
| 1376 | if (rc) |
| 1377 | return rc; |
| 1378 | |
| 1379 | pSMBr = (struct smb_com_transaction2_sfi_rsp *)pSMB; |
| 1380 | |
| 1381 | params = 6; |
| 1382 | pSMB->MaxSetupCount = 0; |
| 1383 | pSMB->Reserved = 0; |
| 1384 | pSMB->Flags = 0; |
| 1385 | pSMB->Timeout = 0; |
| 1386 | pSMB->Reserved2 = 0; |
| 1387 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; |
| 1388 | offset = param_offset + params; |
| 1389 | |
| 1390 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; |
| 1391 | |
| 1392 | count = sizeof(struct cifs_posix_lock); |
| 1393 | pSMB->MaxParameterCount = cpu_to_le16(2); |
| 1394 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB PDU from sess */ |
| 1395 | pSMB->SetupCount = 1; |
| 1396 | pSMB->Reserved3 = 0; |
| 1397 | if(get_flag) |
| 1398 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FILE_INFORMATION); |
| 1399 | else |
| 1400 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); |
| 1401 | byte_count = 3 /* pad */ + params + count; |
| 1402 | pSMB->DataCount = cpu_to_le16(count); |
| 1403 | pSMB->ParameterCount = cpu_to_le16(params); |
| 1404 | pSMB->TotalDataCount = pSMB->DataCount; |
| 1405 | pSMB->TotalParameterCount = pSMB->ParameterCount; |
| 1406 | pSMB->ParameterOffset = cpu_to_le16(param_offset); |
| 1407 | parm_data = (struct cifs_posix_lock *) |
| 1408 | (((char *) &pSMB->hdr.Protocol) + offset); |
| 1409 | |
| 1410 | parm_data->lock_type = cpu_to_le16(lock_type); |
| 1411 | if(waitFlag) |
Steve French | cec6815a | 2006-05-30 18:07:17 +0000 | [diff] [blame] | 1412 | parm_data->lock_flags = cpu_to_le16(1); |
Steve French | 08547b0 | 2006-02-28 22:39:25 +0000 | [diff] [blame] | 1413 | parm_data->pid = cpu_to_le32(current->tgid); |
Steve French | fc94cdb | 2006-05-30 18:03:32 +0000 | [diff] [blame] | 1414 | parm_data->start = cpu_to_le64(pLockData->fl_start); |
Steve French | cec6815a | 2006-05-30 18:07:17 +0000 | [diff] [blame] | 1415 | parm_data->length = cpu_to_le64(len); /* normalize negative numbers */ |
Steve French | 08547b0 | 2006-02-28 22:39:25 +0000 | [diff] [blame] | 1416 | |
| 1417 | pSMB->DataOffset = cpu_to_le16(offset); |
Steve French | f26282c | 2006-03-01 09:17:37 +0000 | [diff] [blame] | 1418 | pSMB->Fid = smb_file_id; |
Steve French | 08547b0 | 2006-02-28 22:39:25 +0000 | [diff] [blame] | 1419 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_POSIX_LOCK); |
| 1420 | pSMB->Reserved4 = 0; |
| 1421 | pSMB->hdr.smb_buf_length += byte_count; |
| 1422 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 1423 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 1424 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 1425 | if (rc) { |
| 1426 | cFYI(1, ("Send error in Posix Lock = %d", rc)); |
Steve French | fc94cdb | 2006-05-30 18:03:32 +0000 | [diff] [blame] | 1427 | } else if (get_flag) { |
| 1428 | /* lock structure can be returned on get */ |
| 1429 | __u16 data_offset; |
| 1430 | __u16 data_count; |
| 1431 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
Steve French | 08547b0 | 2006-02-28 22:39:25 +0000 | [diff] [blame] | 1432 | |
Steve French | fc94cdb | 2006-05-30 18:03:32 +0000 | [diff] [blame] | 1433 | if (rc || (pSMBr->ByteCount < sizeof(struct cifs_posix_lock))) { |
| 1434 | rc = -EIO; /* bad smb */ |
| 1435 | goto plk_err_exit; |
| 1436 | } |
| 1437 | if(pLockData == NULL) { |
| 1438 | rc = -EINVAL; |
| 1439 | goto plk_err_exit; |
| 1440 | } |
| 1441 | data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
| 1442 | data_count = le16_to_cpu(pSMBr->t2.DataCount); |
| 1443 | if(data_count < sizeof(struct cifs_posix_lock)) { |
| 1444 | rc = -EIO; |
| 1445 | goto plk_err_exit; |
| 1446 | } |
| 1447 | parm_data = (struct cifs_posix_lock *) |
| 1448 | ((char *)&pSMBr->hdr.Protocol + data_offset); |
| 1449 | if(parm_data->lock_type == cpu_to_le16(CIFS_UNLCK)) |
| 1450 | pLockData->fl_type = F_UNLCK; |
| 1451 | } |
| 1452 | |
| 1453 | plk_err_exit: |
Steve French | 08547b0 | 2006-02-28 22:39:25 +0000 | [diff] [blame] | 1454 | if (pSMB) |
| 1455 | cifs_small_buf_release(pSMB); |
| 1456 | |
| 1457 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
| 1458 | since file handle passed in no longer valid */ |
| 1459 | |
| 1460 | return rc; |
| 1461 | } |
| 1462 | |
| 1463 | |
| 1464 | int |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1465 | CIFSSMBClose(const int xid, struct cifsTconInfo *tcon, int smb_file_id) |
| 1466 | { |
| 1467 | int rc = 0; |
| 1468 | CLOSE_REQ *pSMB = NULL; |
| 1469 | CLOSE_RSP *pSMBr = NULL; |
| 1470 | int bytes_returned; |
| 1471 | cFYI(1, ("In CIFSSMBClose")); |
| 1472 | |
| 1473 | /* do not retry on dead session on close */ |
| 1474 | rc = small_smb_init(SMB_COM_CLOSE, 3, tcon, (void **) &pSMB); |
| 1475 | if(rc == -EAGAIN) |
| 1476 | return 0; |
| 1477 | if (rc) |
| 1478 | return rc; |
| 1479 | |
| 1480 | pSMBr = (CLOSE_RSP *)pSMB; /* BB removeme BB */ |
| 1481 | |
| 1482 | pSMB->FileID = (__u16) smb_file_id; |
| 1483 | pSMB->LastWriteTime = 0; |
| 1484 | pSMB->ByteCount = 0; |
| 1485 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 1486 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 1487 | cifs_stats_inc(&tcon->num_closes); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1488 | if (rc) { |
| 1489 | if(rc!=-EINTR) { |
| 1490 | /* EINTR is expected when user ctl-c to kill app */ |
| 1491 | cERROR(1, ("Send error in Close = %d", rc)); |
| 1492 | } |
| 1493 | } |
| 1494 | |
| 1495 | cifs_small_buf_release(pSMB); |
| 1496 | |
| 1497 | /* Since session is dead, file will be closed on server already */ |
| 1498 | if(rc == -EAGAIN) |
| 1499 | rc = 0; |
| 1500 | |
| 1501 | return rc; |
| 1502 | } |
| 1503 | |
| 1504 | int |
| 1505 | CIFSSMBRename(const int xid, struct cifsTconInfo *tcon, |
| 1506 | const char *fromName, const char *toName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1507 | const struct nls_table *nls_codepage, int remap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1508 | { |
| 1509 | int rc = 0; |
| 1510 | RENAME_REQ *pSMB = NULL; |
| 1511 | RENAME_RSP *pSMBr = NULL; |
| 1512 | int bytes_returned; |
| 1513 | int name_len, name_len2; |
| 1514 | __u16 count; |
| 1515 | |
| 1516 | cFYI(1, ("In CIFSSMBRename")); |
| 1517 | renameRetry: |
| 1518 | rc = smb_init(SMB_COM_RENAME, 1, tcon, (void **) &pSMB, |
| 1519 | (void **) &pSMBr); |
| 1520 | if (rc) |
| 1521 | return rc; |
| 1522 | |
| 1523 | pSMB->BufferFormat = 0x04; |
| 1524 | pSMB->SearchAttributes = |
| 1525 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | |
| 1526 | ATTR_DIRECTORY); |
| 1527 | |
| 1528 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 1529 | name_len = |
Steve French | b1a4569 | 2005-05-17 16:07:23 -0500 | [diff] [blame] | 1530 | cifsConvertToUCS((__le16 *) pSMB->OldFileName, fromName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1531 | PATH_MAX, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1532 | name_len++; /* trailing null */ |
| 1533 | name_len *= 2; |
| 1534 | pSMB->OldFileName[name_len] = 0x04; /* pad */ |
| 1535 | /* protocol requires ASCII signature byte on Unicode string */ |
| 1536 | pSMB->OldFileName[name_len + 1] = 0x00; |
| 1537 | name_len2 = |
Steve French | b1a4569 | 2005-05-17 16:07:23 -0500 | [diff] [blame] | 1538 | cifsConvertToUCS((__le16 *) &pSMB->OldFileName[name_len + 2], |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1539 | toName, PATH_MAX, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1540 | name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; |
| 1541 | name_len2 *= 2; /* convert to bytes */ |
| 1542 | } else { /* BB improve the check for buffer overruns BB */ |
| 1543 | name_len = strnlen(fromName, PATH_MAX); |
| 1544 | name_len++; /* trailing null */ |
| 1545 | strncpy(pSMB->OldFileName, fromName, name_len); |
| 1546 | name_len2 = strnlen(toName, PATH_MAX); |
| 1547 | name_len2++; /* trailing null */ |
| 1548 | pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */ |
| 1549 | strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2); |
| 1550 | name_len2++; /* trailing null */ |
| 1551 | name_len2++; /* signature byte */ |
| 1552 | } |
| 1553 | |
| 1554 | count = 1 /* 1st signature byte */ + name_len + name_len2; |
| 1555 | pSMB->hdr.smb_buf_length += count; |
| 1556 | pSMB->ByteCount = cpu_to_le16(count); |
| 1557 | |
| 1558 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 1559 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 1560 | cifs_stats_inc(&tcon->num_renames); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1561 | if (rc) { |
| 1562 | cFYI(1, ("Send error in rename = %d", rc)); |
| 1563 | } |
| 1564 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1565 | cifs_buf_release(pSMB); |
| 1566 | |
| 1567 | if (rc == -EAGAIN) |
| 1568 | goto renameRetry; |
| 1569 | |
| 1570 | return rc; |
| 1571 | } |
| 1572 | |
| 1573 | int CIFSSMBRenameOpenFile(const int xid,struct cifsTconInfo *pTcon, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1574 | int netfid, char * target_name, |
| 1575 | const struct nls_table * nls_codepage, int remap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1576 | { |
| 1577 | struct smb_com_transaction2_sfi_req *pSMB = NULL; |
| 1578 | struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; |
| 1579 | struct set_file_rename * rename_info; |
| 1580 | char *data_offset; |
| 1581 | char dummy_string[30]; |
| 1582 | int rc = 0; |
| 1583 | int bytes_returned = 0; |
| 1584 | int len_of_str; |
| 1585 | __u16 params, param_offset, offset, count, byte_count; |
| 1586 | |
| 1587 | cFYI(1, ("Rename to File by handle")); |
| 1588 | rc = smb_init(SMB_COM_TRANSACTION2, 15, pTcon, (void **) &pSMB, |
| 1589 | (void **) &pSMBr); |
| 1590 | if (rc) |
| 1591 | return rc; |
| 1592 | |
| 1593 | params = 6; |
| 1594 | pSMB->MaxSetupCount = 0; |
| 1595 | pSMB->Reserved = 0; |
| 1596 | pSMB->Flags = 0; |
| 1597 | pSMB->Timeout = 0; |
| 1598 | pSMB->Reserved2 = 0; |
| 1599 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; |
| 1600 | offset = param_offset + params; |
| 1601 | |
| 1602 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; |
| 1603 | rename_info = (struct set_file_rename *) data_offset; |
| 1604 | pSMB->MaxParameterCount = cpu_to_le16(2); |
| 1605 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB PDU from sess */ |
| 1606 | pSMB->SetupCount = 1; |
| 1607 | pSMB->Reserved3 = 0; |
| 1608 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); |
| 1609 | byte_count = 3 /* pad */ + params; |
| 1610 | pSMB->ParameterCount = cpu_to_le16(params); |
| 1611 | pSMB->TotalParameterCount = pSMB->ParameterCount; |
| 1612 | pSMB->ParameterOffset = cpu_to_le16(param_offset); |
| 1613 | pSMB->DataOffset = cpu_to_le16(offset); |
| 1614 | /* construct random name ".cifs_tmp<inodenum><mid>" */ |
| 1615 | rename_info->overwrite = cpu_to_le32(1); |
| 1616 | rename_info->root_fid = 0; |
| 1617 | /* unicode only call */ |
| 1618 | if(target_name == NULL) { |
| 1619 | sprintf(dummy_string,"cifs%x",pSMB->hdr.Mid); |
Steve French | b1a4569 | 2005-05-17 16:07:23 -0500 | [diff] [blame] | 1620 | len_of_str = cifsConvertToUCS((__le16 *)rename_info->target_name, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1621 | dummy_string, 24, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1622 | } else { |
Steve French | b1a4569 | 2005-05-17 16:07:23 -0500 | [diff] [blame] | 1623 | len_of_str = cifsConvertToUCS((__le16 *)rename_info->target_name, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1624 | target_name, PATH_MAX, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1625 | } |
| 1626 | rename_info->target_name_len = cpu_to_le32(2 * len_of_str); |
| 1627 | count = 12 /* sizeof(struct set_file_rename) */ + (2 * len_of_str) + 2; |
| 1628 | byte_count += count; |
| 1629 | pSMB->DataCount = cpu_to_le16(count); |
| 1630 | pSMB->TotalDataCount = pSMB->DataCount; |
| 1631 | pSMB->Fid = netfid; |
| 1632 | pSMB->InformationLevel = |
| 1633 | cpu_to_le16(SMB_SET_FILE_RENAME_INFORMATION); |
| 1634 | pSMB->Reserved4 = 0; |
| 1635 | pSMB->hdr.smb_buf_length += byte_count; |
| 1636 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 1637 | rc = SendReceive(xid, pTcon->ses, (struct smb_hdr *) pSMB, |
| 1638 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 1639 | cifs_stats_inc(&pTcon->num_t2renames); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1640 | if (rc) { |
| 1641 | cFYI(1,("Send error in Rename (by file handle) = %d", rc)); |
| 1642 | } |
Steve French | a5a2b48 | 2005-08-20 21:42:53 -0700 | [diff] [blame] | 1643 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1644 | cifs_buf_release(pSMB); |
| 1645 | |
| 1646 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
| 1647 | since file handle passed in no longer valid */ |
| 1648 | |
| 1649 | return rc; |
| 1650 | } |
| 1651 | |
| 1652 | int |
| 1653 | CIFSSMBCopy(const int xid, struct cifsTconInfo *tcon, const char * fromName, |
| 1654 | const __u16 target_tid, const char *toName, const int flags, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1655 | const struct nls_table *nls_codepage, int remap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1656 | { |
| 1657 | int rc = 0; |
| 1658 | COPY_REQ *pSMB = NULL; |
| 1659 | COPY_RSP *pSMBr = NULL; |
| 1660 | int bytes_returned; |
| 1661 | int name_len, name_len2; |
| 1662 | __u16 count; |
| 1663 | |
| 1664 | cFYI(1, ("In CIFSSMBCopy")); |
| 1665 | copyRetry: |
| 1666 | rc = smb_init(SMB_COM_COPY, 1, tcon, (void **) &pSMB, |
| 1667 | (void **) &pSMBr); |
| 1668 | if (rc) |
| 1669 | return rc; |
| 1670 | |
| 1671 | pSMB->BufferFormat = 0x04; |
| 1672 | pSMB->Tid2 = target_tid; |
| 1673 | |
| 1674 | pSMB->Flags = cpu_to_le16(flags & COPY_TREE); |
| 1675 | |
| 1676 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
Steve French | b1a4569 | 2005-05-17 16:07:23 -0500 | [diff] [blame] | 1677 | name_len = cifsConvertToUCS((__le16 *) pSMB->OldFileName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1678 | fromName, PATH_MAX, nls_codepage, |
| 1679 | remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1680 | name_len++; /* trailing null */ |
| 1681 | name_len *= 2; |
| 1682 | pSMB->OldFileName[name_len] = 0x04; /* pad */ |
| 1683 | /* protocol requires ASCII signature byte on Unicode string */ |
| 1684 | pSMB->OldFileName[name_len + 1] = 0x00; |
Steve French | b1a4569 | 2005-05-17 16:07:23 -0500 | [diff] [blame] | 1685 | name_len2 = cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2], |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1686 | toName, PATH_MAX, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1687 | name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; |
| 1688 | name_len2 *= 2; /* convert to bytes */ |
| 1689 | } else { /* BB improve the check for buffer overruns BB */ |
| 1690 | name_len = strnlen(fromName, PATH_MAX); |
| 1691 | name_len++; /* trailing null */ |
| 1692 | strncpy(pSMB->OldFileName, fromName, name_len); |
| 1693 | name_len2 = strnlen(toName, PATH_MAX); |
| 1694 | name_len2++; /* trailing null */ |
| 1695 | pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */ |
| 1696 | strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2); |
| 1697 | name_len2++; /* trailing null */ |
| 1698 | name_len2++; /* signature byte */ |
| 1699 | } |
| 1700 | |
| 1701 | count = 1 /* 1st signature byte */ + name_len + name_len2; |
| 1702 | pSMB->hdr.smb_buf_length += count; |
| 1703 | pSMB->ByteCount = cpu_to_le16(count); |
| 1704 | |
| 1705 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 1706 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 1707 | if (rc) { |
| 1708 | cFYI(1, ("Send error in copy = %d with %d files copied", |
| 1709 | rc, le16_to_cpu(pSMBr->CopyCount))); |
| 1710 | } |
| 1711 | if (pSMB) |
| 1712 | cifs_buf_release(pSMB); |
| 1713 | |
| 1714 | if (rc == -EAGAIN) |
| 1715 | goto copyRetry; |
| 1716 | |
| 1717 | return rc; |
| 1718 | } |
| 1719 | |
| 1720 | int |
| 1721 | CIFSUnixCreateSymLink(const int xid, struct cifsTconInfo *tcon, |
| 1722 | const char *fromName, const char *toName, |
| 1723 | const struct nls_table *nls_codepage) |
| 1724 | { |
| 1725 | TRANSACTION2_SPI_REQ *pSMB = NULL; |
| 1726 | TRANSACTION2_SPI_RSP *pSMBr = NULL; |
| 1727 | char *data_offset; |
| 1728 | int name_len; |
| 1729 | int name_len_target; |
| 1730 | int rc = 0; |
| 1731 | int bytes_returned = 0; |
| 1732 | __u16 params, param_offset, offset, byte_count; |
| 1733 | |
| 1734 | cFYI(1, ("In Symlink Unix style")); |
| 1735 | createSymLinkRetry: |
| 1736 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 1737 | (void **) &pSMBr); |
| 1738 | if (rc) |
| 1739 | return rc; |
| 1740 | |
| 1741 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 1742 | name_len = |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 1743 | cifs_strtoUCS((__le16 *) pSMB->FileName, fromName, PATH_MAX |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1744 | /* find define for this maxpathcomponent */ |
| 1745 | , nls_codepage); |
| 1746 | name_len++; /* trailing null */ |
| 1747 | name_len *= 2; |
| 1748 | |
| 1749 | } else { /* BB improve the check for buffer overruns BB */ |
| 1750 | name_len = strnlen(fromName, PATH_MAX); |
| 1751 | name_len++; /* trailing null */ |
| 1752 | strncpy(pSMB->FileName, fromName, name_len); |
| 1753 | } |
| 1754 | params = 6 + name_len; |
| 1755 | pSMB->MaxSetupCount = 0; |
| 1756 | pSMB->Reserved = 0; |
| 1757 | pSMB->Flags = 0; |
| 1758 | pSMB->Timeout = 0; |
| 1759 | pSMB->Reserved2 = 0; |
| 1760 | param_offset = offsetof(struct smb_com_transaction2_spi_req, |
| 1761 | InformationLevel) - 4; |
| 1762 | offset = param_offset + params; |
| 1763 | |
| 1764 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; |
| 1765 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 1766 | name_len_target = |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 1767 | cifs_strtoUCS((__le16 *) data_offset, toName, PATH_MAX |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1768 | /* find define for this maxpathcomponent */ |
| 1769 | , nls_codepage); |
| 1770 | name_len_target++; /* trailing null */ |
| 1771 | name_len_target *= 2; |
| 1772 | } else { /* BB improve the check for buffer overruns BB */ |
| 1773 | name_len_target = strnlen(toName, PATH_MAX); |
| 1774 | name_len_target++; /* trailing null */ |
| 1775 | strncpy(data_offset, toName, name_len_target); |
| 1776 | } |
| 1777 | |
| 1778 | pSMB->MaxParameterCount = cpu_to_le16(2); |
| 1779 | /* BB find exact max on data count below from sess */ |
| 1780 | pSMB->MaxDataCount = cpu_to_le16(1000); |
| 1781 | pSMB->SetupCount = 1; |
| 1782 | pSMB->Reserved3 = 0; |
| 1783 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); |
| 1784 | byte_count = 3 /* pad */ + params + name_len_target; |
| 1785 | pSMB->DataCount = cpu_to_le16(name_len_target); |
| 1786 | pSMB->ParameterCount = cpu_to_le16(params); |
| 1787 | pSMB->TotalDataCount = pSMB->DataCount; |
| 1788 | pSMB->TotalParameterCount = pSMB->ParameterCount; |
| 1789 | pSMB->ParameterOffset = cpu_to_le16(param_offset); |
| 1790 | pSMB->DataOffset = cpu_to_le16(offset); |
| 1791 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_LINK); |
| 1792 | pSMB->Reserved4 = 0; |
| 1793 | pSMB->hdr.smb_buf_length += byte_count; |
| 1794 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 1795 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 1796 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 1797 | cifs_stats_inc(&tcon->num_symlinks); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1798 | if (rc) { |
| 1799 | cFYI(1, |
| 1800 | ("Send error in SetPathInfo (create symlink) = %d", |
| 1801 | rc)); |
| 1802 | } |
| 1803 | |
| 1804 | if (pSMB) |
| 1805 | cifs_buf_release(pSMB); |
| 1806 | |
| 1807 | if (rc == -EAGAIN) |
| 1808 | goto createSymLinkRetry; |
| 1809 | |
| 1810 | return rc; |
| 1811 | } |
| 1812 | |
| 1813 | int |
| 1814 | CIFSUnixCreateHardLink(const int xid, struct cifsTconInfo *tcon, |
| 1815 | const char *fromName, const char *toName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1816 | const struct nls_table *nls_codepage, int remap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1817 | { |
| 1818 | TRANSACTION2_SPI_REQ *pSMB = NULL; |
| 1819 | TRANSACTION2_SPI_RSP *pSMBr = NULL; |
| 1820 | char *data_offset; |
| 1821 | int name_len; |
| 1822 | int name_len_target; |
| 1823 | int rc = 0; |
| 1824 | int bytes_returned = 0; |
| 1825 | __u16 params, param_offset, offset, byte_count; |
| 1826 | |
| 1827 | cFYI(1, ("In Create Hard link Unix style")); |
| 1828 | createHardLinkRetry: |
| 1829 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 1830 | (void **) &pSMBr); |
| 1831 | if (rc) |
| 1832 | return rc; |
| 1833 | |
| 1834 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
Steve French | b1a4569 | 2005-05-17 16:07:23 -0500 | [diff] [blame] | 1835 | name_len = cifsConvertToUCS((__le16 *) pSMB->FileName, toName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1836 | PATH_MAX, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1837 | name_len++; /* trailing null */ |
| 1838 | name_len *= 2; |
| 1839 | |
| 1840 | } else { /* BB improve the check for buffer overruns BB */ |
| 1841 | name_len = strnlen(toName, PATH_MAX); |
| 1842 | name_len++; /* trailing null */ |
| 1843 | strncpy(pSMB->FileName, toName, name_len); |
| 1844 | } |
| 1845 | params = 6 + name_len; |
| 1846 | pSMB->MaxSetupCount = 0; |
| 1847 | pSMB->Reserved = 0; |
| 1848 | pSMB->Flags = 0; |
| 1849 | pSMB->Timeout = 0; |
| 1850 | pSMB->Reserved2 = 0; |
| 1851 | param_offset = offsetof(struct smb_com_transaction2_spi_req, |
| 1852 | InformationLevel) - 4; |
| 1853 | offset = param_offset + params; |
| 1854 | |
| 1855 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; |
| 1856 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 1857 | name_len_target = |
Steve French | b1a4569 | 2005-05-17 16:07:23 -0500 | [diff] [blame] | 1858 | cifsConvertToUCS((__le16 *) data_offset, fromName, PATH_MAX, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1859 | nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1860 | name_len_target++; /* trailing null */ |
| 1861 | name_len_target *= 2; |
| 1862 | } else { /* BB improve the check for buffer overruns BB */ |
| 1863 | name_len_target = strnlen(fromName, PATH_MAX); |
| 1864 | name_len_target++; /* trailing null */ |
| 1865 | strncpy(data_offset, fromName, name_len_target); |
| 1866 | } |
| 1867 | |
| 1868 | pSMB->MaxParameterCount = cpu_to_le16(2); |
| 1869 | /* BB find exact max on data count below from sess*/ |
| 1870 | pSMB->MaxDataCount = cpu_to_le16(1000); |
| 1871 | pSMB->SetupCount = 1; |
| 1872 | pSMB->Reserved3 = 0; |
| 1873 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); |
| 1874 | byte_count = 3 /* pad */ + params + name_len_target; |
| 1875 | pSMB->ParameterCount = cpu_to_le16(params); |
| 1876 | pSMB->TotalParameterCount = pSMB->ParameterCount; |
| 1877 | pSMB->DataCount = cpu_to_le16(name_len_target); |
| 1878 | pSMB->TotalDataCount = pSMB->DataCount; |
| 1879 | pSMB->ParameterOffset = cpu_to_le16(param_offset); |
| 1880 | pSMB->DataOffset = cpu_to_le16(offset); |
| 1881 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_HLINK); |
| 1882 | pSMB->Reserved4 = 0; |
| 1883 | pSMB->hdr.smb_buf_length += byte_count; |
| 1884 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 1885 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 1886 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 1887 | cifs_stats_inc(&tcon->num_hardlinks); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1888 | if (rc) { |
| 1889 | cFYI(1, ("Send error in SetPathInfo (hard link) = %d", rc)); |
| 1890 | } |
| 1891 | |
| 1892 | cifs_buf_release(pSMB); |
| 1893 | if (rc == -EAGAIN) |
| 1894 | goto createHardLinkRetry; |
| 1895 | |
| 1896 | return rc; |
| 1897 | } |
| 1898 | |
| 1899 | int |
| 1900 | CIFSCreateHardLink(const int xid, struct cifsTconInfo *tcon, |
| 1901 | const char *fromName, const char *toName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1902 | const struct nls_table *nls_codepage, int remap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1903 | { |
| 1904 | int rc = 0; |
| 1905 | NT_RENAME_REQ *pSMB = NULL; |
| 1906 | RENAME_RSP *pSMBr = NULL; |
| 1907 | int bytes_returned; |
| 1908 | int name_len, name_len2; |
| 1909 | __u16 count; |
| 1910 | |
| 1911 | cFYI(1, ("In CIFSCreateHardLink")); |
| 1912 | winCreateHardLinkRetry: |
| 1913 | |
| 1914 | rc = smb_init(SMB_COM_NT_RENAME, 4, tcon, (void **) &pSMB, |
| 1915 | (void **) &pSMBr); |
| 1916 | if (rc) |
| 1917 | return rc; |
| 1918 | |
| 1919 | pSMB->SearchAttributes = |
| 1920 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | |
| 1921 | ATTR_DIRECTORY); |
| 1922 | pSMB->Flags = cpu_to_le16(CREATE_HARD_LINK); |
| 1923 | pSMB->ClusterCount = 0; |
| 1924 | |
| 1925 | pSMB->BufferFormat = 0x04; |
| 1926 | |
| 1927 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 1928 | name_len = |
Steve French | b1a4569 | 2005-05-17 16:07:23 -0500 | [diff] [blame] | 1929 | cifsConvertToUCS((__le16 *) pSMB->OldFileName, fromName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1930 | PATH_MAX, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1931 | name_len++; /* trailing null */ |
| 1932 | name_len *= 2; |
| 1933 | pSMB->OldFileName[name_len] = 0; /* pad */ |
| 1934 | pSMB->OldFileName[name_len + 1] = 0x04; |
| 1935 | name_len2 = |
Steve French | b1a4569 | 2005-05-17 16:07:23 -0500 | [diff] [blame] | 1936 | cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2], |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1937 | toName, PATH_MAX, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1938 | name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; |
| 1939 | name_len2 *= 2; /* convert to bytes */ |
| 1940 | } else { /* BB improve the check for buffer overruns BB */ |
| 1941 | name_len = strnlen(fromName, PATH_MAX); |
| 1942 | name_len++; /* trailing null */ |
| 1943 | strncpy(pSMB->OldFileName, fromName, name_len); |
| 1944 | name_len2 = strnlen(toName, PATH_MAX); |
| 1945 | name_len2++; /* trailing null */ |
| 1946 | pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */ |
| 1947 | strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2); |
| 1948 | name_len2++; /* trailing null */ |
| 1949 | name_len2++; /* signature byte */ |
| 1950 | } |
| 1951 | |
| 1952 | count = 1 /* string type byte */ + name_len + name_len2; |
| 1953 | pSMB->hdr.smb_buf_length += count; |
| 1954 | pSMB->ByteCount = cpu_to_le16(count); |
| 1955 | |
| 1956 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 1957 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 1958 | cifs_stats_inc(&tcon->num_hardlinks); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1959 | if (rc) { |
| 1960 | cFYI(1, ("Send error in hard link (NT rename) = %d", rc)); |
| 1961 | } |
| 1962 | cifs_buf_release(pSMB); |
| 1963 | if (rc == -EAGAIN) |
| 1964 | goto winCreateHardLinkRetry; |
| 1965 | |
| 1966 | return rc; |
| 1967 | } |
| 1968 | |
| 1969 | int |
| 1970 | CIFSSMBUnixQuerySymLink(const int xid, struct cifsTconInfo *tcon, |
| 1971 | const unsigned char *searchName, |
| 1972 | char *symlinkinfo, const int buflen, |
| 1973 | const struct nls_table *nls_codepage) |
| 1974 | { |
| 1975 | /* SMB_QUERY_FILE_UNIX_LINK */ |
| 1976 | TRANSACTION2_QPI_REQ *pSMB = NULL; |
| 1977 | TRANSACTION2_QPI_RSP *pSMBr = NULL; |
| 1978 | int rc = 0; |
| 1979 | int bytes_returned; |
| 1980 | int name_len; |
| 1981 | __u16 params, byte_count; |
| 1982 | |
| 1983 | cFYI(1, ("In QPathSymLinkInfo (Unix) for path %s", searchName)); |
| 1984 | |
| 1985 | querySymLinkRetry: |
| 1986 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 1987 | (void **) &pSMBr); |
| 1988 | if (rc) |
| 1989 | return rc; |
| 1990 | |
| 1991 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 1992 | name_len = |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 1993 | cifs_strtoUCS((__le16 *) pSMB->FileName, searchName, PATH_MAX |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1994 | /* find define for this maxpathcomponent */ |
| 1995 | , nls_codepage); |
| 1996 | name_len++; /* trailing null */ |
| 1997 | name_len *= 2; |
| 1998 | } else { /* BB improve the check for buffer overruns BB */ |
| 1999 | name_len = strnlen(searchName, PATH_MAX); |
| 2000 | name_len++; /* trailing null */ |
| 2001 | strncpy(pSMB->FileName, searchName, name_len); |
| 2002 | } |
| 2003 | |
| 2004 | params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ; |
| 2005 | pSMB->TotalDataCount = 0; |
| 2006 | pSMB->MaxParameterCount = cpu_to_le16(2); |
| 2007 | /* BB find exact max data count below from sess structure BB */ |
| 2008 | pSMB->MaxDataCount = cpu_to_le16(4000); |
| 2009 | pSMB->MaxSetupCount = 0; |
| 2010 | pSMB->Reserved = 0; |
| 2011 | pSMB->Flags = 0; |
| 2012 | pSMB->Timeout = 0; |
| 2013 | pSMB->Reserved2 = 0; |
| 2014 | pSMB->ParameterOffset = cpu_to_le16(offsetof( |
| 2015 | struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); |
| 2016 | pSMB->DataCount = 0; |
| 2017 | pSMB->DataOffset = 0; |
| 2018 | pSMB->SetupCount = 1; |
| 2019 | pSMB->Reserved3 = 0; |
| 2020 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); |
| 2021 | byte_count = params + 1 /* pad */ ; |
| 2022 | pSMB->TotalParameterCount = cpu_to_le16(params); |
| 2023 | pSMB->ParameterCount = pSMB->TotalParameterCount; |
| 2024 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_UNIX_LINK); |
| 2025 | pSMB->Reserved4 = 0; |
| 2026 | pSMB->hdr.smb_buf_length += byte_count; |
| 2027 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 2028 | |
| 2029 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 2030 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 2031 | if (rc) { |
| 2032 | cFYI(1, ("Send error in QuerySymLinkInfo = %d", rc)); |
| 2033 | } else { |
| 2034 | /* decode response */ |
| 2035 | |
| 2036 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
| 2037 | if (rc || (pSMBr->ByteCount < 2)) |
| 2038 | /* BB also check enough total bytes returned */ |
| 2039 | rc = -EIO; /* bad smb */ |
| 2040 | else { |
| 2041 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
| 2042 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); |
| 2043 | |
| 2044 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 2045 | name_len = UniStrnlen((wchar_t *) ((char *) |
| 2046 | &pSMBr->hdr.Protocol +data_offset), |
| 2047 | min_t(const int, buflen,count) / 2); |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 2048 | /* BB FIXME investigate remapping reserved chars here */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2049 | cifs_strfromUCS_le(symlinkinfo, |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 2050 | (__le16 *) ((char *)&pSMBr->hdr.Protocol + |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2051 | data_offset), |
| 2052 | name_len, nls_codepage); |
| 2053 | } else { |
| 2054 | strncpy(symlinkinfo, |
| 2055 | (char *) &pSMBr->hdr.Protocol + |
| 2056 | data_offset, |
| 2057 | min_t(const int, buflen, count)); |
| 2058 | } |
| 2059 | symlinkinfo[buflen] = 0; |
| 2060 | /* just in case so calling code does not go off the end of buffer */ |
| 2061 | } |
| 2062 | } |
| 2063 | cifs_buf_release(pSMB); |
| 2064 | if (rc == -EAGAIN) |
| 2065 | goto querySymLinkRetry; |
| 2066 | return rc; |
| 2067 | } |
| 2068 | |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 2069 | /* Initialize NT TRANSACT SMB into small smb request buffer. |
| 2070 | This assumes that all NT TRANSACTS that we init here have |
| 2071 | total parm and data under about 400 bytes (to fit in small cifs |
| 2072 | buffer size), which is the case so far, it easily fits. NB: |
| 2073 | Setup words themselves and ByteCount |
| 2074 | MaxSetupCount (size of returned setup area) and |
| 2075 | MaxParameterCount (returned parms size) must be set by caller */ |
| 2076 | static int |
| 2077 | smb_init_ntransact(const __u16 sub_command, const int setup_count, |
| 2078 | const int parm_len, struct cifsTconInfo *tcon, |
| 2079 | void ** ret_buf) |
| 2080 | { |
| 2081 | int rc; |
| 2082 | __u32 temp_offset; |
| 2083 | struct smb_com_ntransact_req * pSMB; |
| 2084 | |
| 2085 | rc = small_smb_init(SMB_COM_NT_TRANSACT, 19 + setup_count, tcon, |
| 2086 | (void **)&pSMB); |
| 2087 | if (rc) |
| 2088 | return rc; |
| 2089 | *ret_buf = (void *)pSMB; |
| 2090 | pSMB->Reserved = 0; |
| 2091 | pSMB->TotalParameterCount = cpu_to_le32(parm_len); |
| 2092 | pSMB->TotalDataCount = 0; |
| 2093 | pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf - |
| 2094 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); |
| 2095 | pSMB->ParameterCount = pSMB->TotalParameterCount; |
| 2096 | pSMB->DataCount = pSMB->TotalDataCount; |
| 2097 | temp_offset = offsetof(struct smb_com_ntransact_req, Parms) + |
| 2098 | (setup_count * 2) - 4 /* for rfc1001 length itself */; |
| 2099 | pSMB->ParameterOffset = cpu_to_le32(temp_offset); |
| 2100 | pSMB->DataOffset = cpu_to_le32(temp_offset + parm_len); |
| 2101 | pSMB->SetupCount = setup_count; /* no need to le convert byte fields */ |
| 2102 | pSMB->SubCommand = cpu_to_le16(sub_command); |
| 2103 | return 0; |
| 2104 | } |
| 2105 | |
| 2106 | static int |
| 2107 | validate_ntransact(char * buf, char ** ppparm, char ** ppdata, |
| 2108 | int * pdatalen, int * pparmlen) |
| 2109 | { |
| 2110 | char * end_of_smb; |
| 2111 | __u32 data_count, data_offset, parm_count, parm_offset; |
| 2112 | struct smb_com_ntransact_rsp * pSMBr; |
| 2113 | |
| 2114 | if(buf == NULL) |
| 2115 | return -EINVAL; |
| 2116 | |
| 2117 | pSMBr = (struct smb_com_ntransact_rsp *)buf; |
| 2118 | |
| 2119 | /* ByteCount was converted from little endian in SendReceive */ |
| 2120 | end_of_smb = 2 /* sizeof byte count */ + pSMBr->ByteCount + |
| 2121 | (char *)&pSMBr->ByteCount; |
| 2122 | |
| 2123 | |
| 2124 | data_offset = le32_to_cpu(pSMBr->DataOffset); |
| 2125 | data_count = le32_to_cpu(pSMBr->DataCount); |
| 2126 | parm_offset = le32_to_cpu(pSMBr->ParameterOffset); |
| 2127 | parm_count = le32_to_cpu(pSMBr->ParameterCount); |
| 2128 | |
| 2129 | *ppparm = (char *)&pSMBr->hdr.Protocol + parm_offset; |
| 2130 | *ppdata = (char *)&pSMBr->hdr.Protocol + data_offset; |
| 2131 | |
| 2132 | /* should we also check that parm and data areas do not overlap? */ |
| 2133 | if(*ppparm > end_of_smb) { |
| 2134 | cFYI(1,("parms start after end of smb")); |
| 2135 | return -EINVAL; |
| 2136 | } else if(parm_count + *ppparm > end_of_smb) { |
| 2137 | cFYI(1,("parm end after end of smb")); |
| 2138 | return -EINVAL; |
| 2139 | } else if(*ppdata > end_of_smb) { |
| 2140 | cFYI(1,("data starts after end of smb")); |
| 2141 | return -EINVAL; |
| 2142 | } else if(data_count + *ppdata > end_of_smb) { |
| 2143 | cFYI(1,("data %p + count %d (%p) ends after end of smb %p start %p", |
| 2144 | *ppdata, data_count, (data_count + *ppdata), end_of_smb, pSMBr)); /* BB FIXME */ |
| 2145 | return -EINVAL; |
| 2146 | } else if(parm_count + data_count > pSMBr->ByteCount) { |
| 2147 | cFYI(1,("parm count and data count larger than SMB")); |
| 2148 | return -EINVAL; |
| 2149 | } |
| 2150 | return 0; |
| 2151 | } |
| 2152 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2153 | int |
| 2154 | CIFSSMBQueryReparseLinkInfo(const int xid, struct cifsTconInfo *tcon, |
| 2155 | const unsigned char *searchName, |
| 2156 | char *symlinkinfo, const int buflen,__u16 fid, |
| 2157 | const struct nls_table *nls_codepage) |
| 2158 | { |
| 2159 | int rc = 0; |
| 2160 | int bytes_returned; |
| 2161 | int name_len; |
| 2162 | struct smb_com_transaction_ioctl_req * pSMB; |
| 2163 | struct smb_com_transaction_ioctl_rsp * pSMBr; |
| 2164 | |
| 2165 | cFYI(1, ("In Windows reparse style QueryLink for path %s", searchName)); |
| 2166 | rc = smb_init(SMB_COM_NT_TRANSACT, 23, tcon, (void **) &pSMB, |
| 2167 | (void **) &pSMBr); |
| 2168 | if (rc) |
| 2169 | return rc; |
| 2170 | |
| 2171 | pSMB->TotalParameterCount = 0 ; |
| 2172 | pSMB->TotalDataCount = 0; |
| 2173 | pSMB->MaxParameterCount = cpu_to_le32(2); |
| 2174 | /* BB find exact data count max from sess structure BB */ |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 2175 | pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf - |
| 2176 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2177 | pSMB->MaxSetupCount = 4; |
| 2178 | pSMB->Reserved = 0; |
| 2179 | pSMB->ParameterOffset = 0; |
| 2180 | pSMB->DataCount = 0; |
| 2181 | pSMB->DataOffset = 0; |
| 2182 | pSMB->SetupCount = 4; |
| 2183 | pSMB->SubCommand = cpu_to_le16(NT_TRANSACT_IOCTL); |
| 2184 | pSMB->ParameterCount = pSMB->TotalParameterCount; |
| 2185 | pSMB->FunctionCode = cpu_to_le32(FSCTL_GET_REPARSE_POINT); |
| 2186 | pSMB->IsFsctl = 1; /* FSCTL */ |
| 2187 | pSMB->IsRootFlag = 0; |
| 2188 | pSMB->Fid = fid; /* file handle always le */ |
| 2189 | pSMB->ByteCount = 0; |
| 2190 | |
| 2191 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 2192 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 2193 | if (rc) { |
| 2194 | cFYI(1, ("Send error in QueryReparseLinkInfo = %d", rc)); |
| 2195 | } else { /* decode response */ |
| 2196 | __u32 data_offset = le32_to_cpu(pSMBr->DataOffset); |
| 2197 | __u32 data_count = le32_to_cpu(pSMBr->DataCount); |
| 2198 | if ((pSMBr->ByteCount < 2) || (data_offset > 512)) |
| 2199 | /* BB also check enough total bytes returned */ |
| 2200 | rc = -EIO; /* bad smb */ |
| 2201 | else { |
| 2202 | if(data_count && (data_count < 2048)) { |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 2203 | char * end_of_smb = 2 /* sizeof byte count */ + |
| 2204 | pSMBr->ByteCount + |
| 2205 | (char *)&pSMBr->ByteCount; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2206 | |
| 2207 | struct reparse_data * reparse_buf = (struct reparse_data *) |
| 2208 | ((char *)&pSMBr->hdr.Protocol + data_offset); |
| 2209 | if((char*)reparse_buf >= end_of_smb) { |
| 2210 | rc = -EIO; |
| 2211 | goto qreparse_out; |
| 2212 | } |
| 2213 | if((reparse_buf->LinkNamesBuf + |
| 2214 | reparse_buf->TargetNameOffset + |
| 2215 | reparse_buf->TargetNameLen) > |
| 2216 | end_of_smb) { |
| 2217 | cFYI(1,("reparse buf extended beyond SMB")); |
| 2218 | rc = -EIO; |
| 2219 | goto qreparse_out; |
| 2220 | } |
| 2221 | |
| 2222 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 2223 | name_len = UniStrnlen((wchar_t *) |
| 2224 | (reparse_buf->LinkNamesBuf + |
| 2225 | reparse_buf->TargetNameOffset), |
| 2226 | min(buflen/2, reparse_buf->TargetNameLen / 2)); |
| 2227 | cifs_strfromUCS_le(symlinkinfo, |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 2228 | (__le16 *) (reparse_buf->LinkNamesBuf + |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2229 | reparse_buf->TargetNameOffset), |
| 2230 | name_len, nls_codepage); |
| 2231 | } else { /* ASCII names */ |
| 2232 | strncpy(symlinkinfo,reparse_buf->LinkNamesBuf + |
| 2233 | reparse_buf->TargetNameOffset, |
| 2234 | min_t(const int, buflen, reparse_buf->TargetNameLen)); |
| 2235 | } |
| 2236 | } else { |
| 2237 | rc = -EIO; |
| 2238 | cFYI(1,("Invalid return data count on get reparse info ioctl")); |
| 2239 | } |
| 2240 | symlinkinfo[buflen] = 0; /* just in case so the caller |
| 2241 | does not go off the end of the buffer */ |
| 2242 | cFYI(1,("readlink result - %s ",symlinkinfo)); |
| 2243 | } |
| 2244 | } |
| 2245 | qreparse_out: |
Steve French | 4a6d87f | 2005-08-13 08:15:54 -0700 | [diff] [blame] | 2246 | cifs_buf_release(pSMB); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2247 | |
| 2248 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
| 2249 | since file handle passed in no longer valid */ |
| 2250 | |
| 2251 | return rc; |
| 2252 | } |
| 2253 | |
| 2254 | #ifdef CONFIG_CIFS_POSIX |
| 2255 | |
| 2256 | /*Convert an Access Control Entry from wire format to local POSIX xattr format*/ |
| 2257 | static void cifs_convert_ace(posix_acl_xattr_entry * ace, struct cifs_posix_ace * cifs_ace) |
| 2258 | { |
| 2259 | /* u8 cifs fields do not need le conversion */ |
Steve French | ff7feac | 2005-11-15 16:45:16 -0800 | [diff] [blame] | 2260 | ace->e_perm = cpu_to_le16(cifs_ace->cifs_e_perm); |
| 2261 | ace->e_tag = cpu_to_le16(cifs_ace->cifs_e_tag); |
| 2262 | ace->e_id = cpu_to_le32(le64_to_cpu(cifs_ace->cifs_uid)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2263 | /* cFYI(1,("perm %d tag %d id %d",ace->e_perm,ace->e_tag,ace->e_id)); */ |
| 2264 | |
| 2265 | return; |
| 2266 | } |
| 2267 | |
| 2268 | /* Convert ACL from CIFS POSIX wire format to local Linux POSIX ACL xattr */ |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 2269 | static int cifs_copy_posix_acl(char * trgt,char * src, const int buflen, |
| 2270 | const int acl_type,const int size_of_data_area) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2271 | { |
| 2272 | int size = 0; |
| 2273 | int i; |
| 2274 | __u16 count; |
| 2275 | struct cifs_posix_ace * pACE; |
| 2276 | struct cifs_posix_acl * cifs_acl = (struct cifs_posix_acl *)src; |
| 2277 | posix_acl_xattr_header * local_acl = (posix_acl_xattr_header *)trgt; |
| 2278 | |
| 2279 | if (le16_to_cpu(cifs_acl->version) != CIFS_ACL_VERSION) |
| 2280 | return -EOPNOTSUPP; |
| 2281 | |
| 2282 | if(acl_type & ACL_TYPE_ACCESS) { |
| 2283 | count = le16_to_cpu(cifs_acl->access_entry_count); |
| 2284 | pACE = &cifs_acl->ace_array[0]; |
| 2285 | size = sizeof(struct cifs_posix_acl); |
| 2286 | size += sizeof(struct cifs_posix_ace) * count; |
| 2287 | /* check if we would go beyond end of SMB */ |
| 2288 | if(size_of_data_area < size) { |
| 2289 | cFYI(1,("bad CIFS POSIX ACL size %d vs. %d",size_of_data_area,size)); |
| 2290 | return -EINVAL; |
| 2291 | } |
| 2292 | } else if(acl_type & ACL_TYPE_DEFAULT) { |
| 2293 | count = le16_to_cpu(cifs_acl->access_entry_count); |
| 2294 | size = sizeof(struct cifs_posix_acl); |
| 2295 | size += sizeof(struct cifs_posix_ace) * count; |
| 2296 | /* skip past access ACEs to get to default ACEs */ |
| 2297 | pACE = &cifs_acl->ace_array[count]; |
| 2298 | count = le16_to_cpu(cifs_acl->default_entry_count); |
| 2299 | size += sizeof(struct cifs_posix_ace) * count; |
| 2300 | /* check if we would go beyond end of SMB */ |
| 2301 | if(size_of_data_area < size) |
| 2302 | return -EINVAL; |
| 2303 | } else { |
| 2304 | /* illegal type */ |
| 2305 | return -EINVAL; |
| 2306 | } |
| 2307 | |
| 2308 | size = posix_acl_xattr_size(count); |
| 2309 | if((buflen == 0) || (local_acl == NULL)) { |
| 2310 | /* used to query ACL EA size */ |
| 2311 | } else if(size > buflen) { |
| 2312 | return -ERANGE; |
| 2313 | } else /* buffer big enough */ { |
Steve French | ff7feac | 2005-11-15 16:45:16 -0800 | [diff] [blame] | 2314 | local_acl->a_version = cpu_to_le32(POSIX_ACL_XATTR_VERSION); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2315 | for(i = 0;i < count ;i++) { |
| 2316 | cifs_convert_ace(&local_acl->a_entries[i],pACE); |
| 2317 | pACE ++; |
| 2318 | } |
| 2319 | } |
| 2320 | return size; |
| 2321 | } |
| 2322 | |
| 2323 | static __u16 convert_ace_to_cifs_ace(struct cifs_posix_ace * cifs_ace, |
| 2324 | const posix_acl_xattr_entry * local_ace) |
| 2325 | { |
| 2326 | __u16 rc = 0; /* 0 = ACL converted ok */ |
| 2327 | |
Steve French | ff7feac | 2005-11-15 16:45:16 -0800 | [diff] [blame] | 2328 | cifs_ace->cifs_e_perm = le16_to_cpu(local_ace->e_perm); |
| 2329 | cifs_ace->cifs_e_tag = le16_to_cpu(local_ace->e_tag); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2330 | /* BB is there a better way to handle the large uid? */ |
Steve French | ff7feac | 2005-11-15 16:45:16 -0800 | [diff] [blame] | 2331 | if(local_ace->e_id == cpu_to_le32(-1)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2332 | /* Probably no need to le convert -1 on any arch but can not hurt */ |
| 2333 | cifs_ace->cifs_uid = cpu_to_le64(-1); |
| 2334 | } else |
Steve French | ff7feac | 2005-11-15 16:45:16 -0800 | [diff] [blame] | 2335 | cifs_ace->cifs_uid = cpu_to_le64(le32_to_cpu(local_ace->e_id)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2336 | /*cFYI(1,("perm %d tag %d id %d",ace->e_perm,ace->e_tag,ace->e_id));*/ |
| 2337 | return rc; |
| 2338 | } |
| 2339 | |
| 2340 | /* Convert ACL from local Linux POSIX xattr to CIFS POSIX ACL wire format */ |
| 2341 | static __u16 ACL_to_cifs_posix(char * parm_data,const char * pACL,const int buflen, |
| 2342 | const int acl_type) |
| 2343 | { |
| 2344 | __u16 rc = 0; |
| 2345 | struct cifs_posix_acl * cifs_acl = (struct cifs_posix_acl *)parm_data; |
| 2346 | posix_acl_xattr_header * local_acl = (posix_acl_xattr_header *)pACL; |
| 2347 | int count; |
| 2348 | int i; |
| 2349 | |
| 2350 | if((buflen == 0) || (pACL == NULL) || (cifs_acl == NULL)) |
| 2351 | return 0; |
| 2352 | |
| 2353 | count = posix_acl_xattr_count((size_t)buflen); |
| 2354 | cFYI(1,("setting acl with %d entries from buf of length %d and version of %d", |
Steve French | ff7feac | 2005-11-15 16:45:16 -0800 | [diff] [blame] | 2355 | count, buflen, le32_to_cpu(local_acl->a_version))); |
| 2356 | if(le32_to_cpu(local_acl->a_version) != 2) { |
| 2357 | cFYI(1,("unknown POSIX ACL version %d", |
| 2358 | le32_to_cpu(local_acl->a_version))); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2359 | return 0; |
| 2360 | } |
| 2361 | cifs_acl->version = cpu_to_le16(1); |
| 2362 | if(acl_type == ACL_TYPE_ACCESS) |
Steve French | ff7feac | 2005-11-15 16:45:16 -0800 | [diff] [blame] | 2363 | cifs_acl->access_entry_count = cpu_to_le16(count); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2364 | else if(acl_type == ACL_TYPE_DEFAULT) |
Steve French | ff7feac | 2005-11-15 16:45:16 -0800 | [diff] [blame] | 2365 | cifs_acl->default_entry_count = cpu_to_le16(count); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2366 | else { |
| 2367 | cFYI(1,("unknown ACL type %d",acl_type)); |
| 2368 | return 0; |
| 2369 | } |
| 2370 | for(i=0;i<count;i++) { |
| 2371 | rc = convert_ace_to_cifs_ace(&cifs_acl->ace_array[i], |
| 2372 | &local_acl->a_entries[i]); |
| 2373 | if(rc != 0) { |
| 2374 | /* ACE not converted */ |
| 2375 | break; |
| 2376 | } |
| 2377 | } |
| 2378 | if(rc == 0) { |
| 2379 | rc = (__u16)(count * sizeof(struct cifs_posix_ace)); |
| 2380 | rc += sizeof(struct cifs_posix_acl); |
| 2381 | /* BB add check to make sure ACL does not overflow SMB */ |
| 2382 | } |
| 2383 | return rc; |
| 2384 | } |
| 2385 | |
| 2386 | int |
| 2387 | CIFSSMBGetPosixACL(const int xid, struct cifsTconInfo *tcon, |
| 2388 | const unsigned char *searchName, |
| 2389 | char *acl_inf, const int buflen, const int acl_type, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 2390 | const struct nls_table *nls_codepage, int remap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2391 | { |
| 2392 | /* SMB_QUERY_POSIX_ACL */ |
| 2393 | TRANSACTION2_QPI_REQ *pSMB = NULL; |
| 2394 | TRANSACTION2_QPI_RSP *pSMBr = NULL; |
| 2395 | int rc = 0; |
| 2396 | int bytes_returned; |
| 2397 | int name_len; |
| 2398 | __u16 params, byte_count; |
| 2399 | |
| 2400 | cFYI(1, ("In GetPosixACL (Unix) for path %s", searchName)); |
| 2401 | |
| 2402 | queryAclRetry: |
| 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 | b1a4569 | 2005-05-17 16:07:23 -0500 | [diff] [blame] | 2410 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 2411 | PATH_MAX, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2412 | name_len++; /* trailing null */ |
| 2413 | name_len *= 2; |
| 2414 | pSMB->FileName[name_len] = 0; |
| 2415 | pSMB->FileName[name_len+1] = 0; |
| 2416 | } else { /* BB improve the check for buffer overruns BB */ |
| 2417 | name_len = strnlen(searchName, PATH_MAX); |
| 2418 | name_len++; /* trailing null */ |
| 2419 | strncpy(pSMB->FileName, searchName, name_len); |
| 2420 | } |
| 2421 | |
| 2422 | params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ; |
| 2423 | pSMB->TotalDataCount = 0; |
| 2424 | pSMB->MaxParameterCount = cpu_to_le16(2); |
| 2425 | /* BB find exact max data count below from sess structure BB */ |
| 2426 | pSMB->MaxDataCount = cpu_to_le16(4000); |
| 2427 | pSMB->MaxSetupCount = 0; |
| 2428 | pSMB->Reserved = 0; |
| 2429 | pSMB->Flags = 0; |
| 2430 | pSMB->Timeout = 0; |
| 2431 | pSMB->Reserved2 = 0; |
| 2432 | pSMB->ParameterOffset = cpu_to_le16( |
| 2433 | offsetof(struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); |
| 2434 | pSMB->DataCount = 0; |
| 2435 | pSMB->DataOffset = 0; |
| 2436 | pSMB->SetupCount = 1; |
| 2437 | pSMB->Reserved3 = 0; |
| 2438 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); |
| 2439 | byte_count = params + 1 /* pad */ ; |
| 2440 | pSMB->TotalParameterCount = cpu_to_le16(params); |
| 2441 | pSMB->ParameterCount = pSMB->TotalParameterCount; |
| 2442 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_POSIX_ACL); |
| 2443 | pSMB->Reserved4 = 0; |
| 2444 | pSMB->hdr.smb_buf_length += byte_count; |
| 2445 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 2446 | |
| 2447 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 2448 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 2449 | cifs_stats_inc(&tcon->num_acl_get); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2450 | if (rc) { |
| 2451 | cFYI(1, ("Send error in Query POSIX ACL = %d", rc)); |
| 2452 | } else { |
| 2453 | /* decode response */ |
| 2454 | |
| 2455 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
| 2456 | if (rc || (pSMBr->ByteCount < 2)) |
| 2457 | /* BB also check enough total bytes returned */ |
| 2458 | rc = -EIO; /* bad smb */ |
| 2459 | else { |
| 2460 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
| 2461 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); |
| 2462 | rc = cifs_copy_posix_acl(acl_inf, |
| 2463 | (char *)&pSMBr->hdr.Protocol+data_offset, |
| 2464 | buflen,acl_type,count); |
| 2465 | } |
| 2466 | } |
| 2467 | cifs_buf_release(pSMB); |
| 2468 | if (rc == -EAGAIN) |
| 2469 | goto queryAclRetry; |
| 2470 | return rc; |
| 2471 | } |
| 2472 | |
| 2473 | int |
| 2474 | CIFSSMBSetPosixACL(const int xid, struct cifsTconInfo *tcon, |
| 2475 | const unsigned char *fileName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 2476 | const char *local_acl, const int buflen, |
| 2477 | const int acl_type, |
| 2478 | const struct nls_table *nls_codepage, int remap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2479 | { |
| 2480 | struct smb_com_transaction2_spi_req *pSMB = NULL; |
| 2481 | struct smb_com_transaction2_spi_rsp *pSMBr = NULL; |
| 2482 | char *parm_data; |
| 2483 | int name_len; |
| 2484 | int rc = 0; |
| 2485 | int bytes_returned = 0; |
| 2486 | __u16 params, byte_count, data_count, param_offset, offset; |
| 2487 | |
| 2488 | cFYI(1, ("In SetPosixACL (Unix) for path %s", fileName)); |
| 2489 | setAclRetry: |
| 2490 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 2491 | (void **) &pSMBr); |
| 2492 | if (rc) |
| 2493 | return rc; |
| 2494 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 2495 | name_len = |
Steve French | b1a4569 | 2005-05-17 16:07:23 -0500 | [diff] [blame] | 2496 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 2497 | PATH_MAX, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2498 | name_len++; /* trailing null */ |
| 2499 | name_len *= 2; |
| 2500 | } else { /* BB improve the check for buffer overruns BB */ |
| 2501 | name_len = strnlen(fileName, PATH_MAX); |
| 2502 | name_len++; /* trailing null */ |
| 2503 | strncpy(pSMB->FileName, fileName, name_len); |
| 2504 | } |
| 2505 | params = 6 + name_len; |
| 2506 | pSMB->MaxParameterCount = cpu_to_le16(2); |
| 2507 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB size from sess */ |
| 2508 | pSMB->MaxSetupCount = 0; |
| 2509 | pSMB->Reserved = 0; |
| 2510 | pSMB->Flags = 0; |
| 2511 | pSMB->Timeout = 0; |
| 2512 | pSMB->Reserved2 = 0; |
| 2513 | param_offset = offsetof(struct smb_com_transaction2_spi_req, |
| 2514 | InformationLevel) - 4; |
| 2515 | offset = param_offset + params; |
| 2516 | parm_data = ((char *) &pSMB->hdr.Protocol) + offset; |
| 2517 | pSMB->ParameterOffset = cpu_to_le16(param_offset); |
| 2518 | |
| 2519 | /* convert to on the wire format for POSIX ACL */ |
| 2520 | data_count = ACL_to_cifs_posix(parm_data,local_acl,buflen,acl_type); |
| 2521 | |
| 2522 | if(data_count == 0) { |
| 2523 | rc = -EOPNOTSUPP; |
| 2524 | goto setACLerrorExit; |
| 2525 | } |
| 2526 | pSMB->DataOffset = cpu_to_le16(offset); |
| 2527 | pSMB->SetupCount = 1; |
| 2528 | pSMB->Reserved3 = 0; |
| 2529 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); |
| 2530 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_POSIX_ACL); |
| 2531 | byte_count = 3 /* pad */ + params + data_count; |
| 2532 | pSMB->DataCount = cpu_to_le16(data_count); |
| 2533 | pSMB->TotalDataCount = pSMB->DataCount; |
| 2534 | pSMB->ParameterCount = cpu_to_le16(params); |
| 2535 | pSMB->TotalParameterCount = pSMB->ParameterCount; |
| 2536 | pSMB->Reserved4 = 0; |
| 2537 | pSMB->hdr.smb_buf_length += byte_count; |
| 2538 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 2539 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 2540 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 2541 | if (rc) { |
| 2542 | cFYI(1, ("Set POSIX ACL returned %d", rc)); |
| 2543 | } |
| 2544 | |
| 2545 | setACLerrorExit: |
| 2546 | cifs_buf_release(pSMB); |
| 2547 | if (rc == -EAGAIN) |
| 2548 | goto setAclRetry; |
| 2549 | return rc; |
| 2550 | } |
| 2551 | |
Steve French | f654bac | 2005-04-28 22:41:04 -0700 | [diff] [blame] | 2552 | /* BB fix tabs in this function FIXME BB */ |
| 2553 | int |
| 2554 | CIFSGetExtAttr(const int xid, struct cifsTconInfo *tcon, |
| 2555 | const int netfid, __u64 * pExtAttrBits, __u64 *pMask) |
| 2556 | { |
| 2557 | int rc = 0; |
| 2558 | struct smb_t2_qfi_req *pSMB = NULL; |
| 2559 | struct smb_t2_qfi_rsp *pSMBr = NULL; |
| 2560 | int bytes_returned; |
| 2561 | __u16 params, byte_count; |
| 2562 | |
| 2563 | cFYI(1,("In GetExtAttr")); |
| 2564 | if(tcon == NULL) |
| 2565 | return -ENODEV; |
| 2566 | |
| 2567 | GetExtAttrRetry: |
| 2568 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 2569 | (void **) &pSMBr); |
| 2570 | if (rc) |
| 2571 | return rc; |
| 2572 | |
Steve French | c67593a | 2005-04-28 22:41:04 -0700 | [diff] [blame] | 2573 | params = 2 /* level */ +2 /* fid */; |
Steve French | f654bac | 2005-04-28 22:41:04 -0700 | [diff] [blame] | 2574 | pSMB->t2.TotalDataCount = 0; |
Steve French | c67593a | 2005-04-28 22:41:04 -0700 | [diff] [blame] | 2575 | pSMB->t2.MaxParameterCount = cpu_to_le16(4); |
Steve French | f654bac | 2005-04-28 22:41:04 -0700 | [diff] [blame] | 2576 | /* BB find exact max data count below from sess structure BB */ |
| 2577 | pSMB->t2.MaxDataCount = cpu_to_le16(4000); |
| 2578 | pSMB->t2.MaxSetupCount = 0; |
| 2579 | pSMB->t2.Reserved = 0; |
| 2580 | pSMB->t2.Flags = 0; |
| 2581 | pSMB->t2.Timeout = 0; |
| 2582 | pSMB->t2.Reserved2 = 0; |
Steve French | c67593a | 2005-04-28 22:41:04 -0700 | [diff] [blame] | 2583 | pSMB->t2.ParameterOffset = cpu_to_le16(offsetof(struct smb_t2_qfi_req, |
| 2584 | Fid) - 4); |
Steve French | f654bac | 2005-04-28 22:41:04 -0700 | [diff] [blame] | 2585 | pSMB->t2.DataCount = 0; |
| 2586 | pSMB->t2.DataOffset = 0; |
| 2587 | pSMB->t2.SetupCount = 1; |
| 2588 | pSMB->t2.Reserved3 = 0; |
| 2589 | pSMB->t2.SubCommand = cpu_to_le16(TRANS2_QUERY_FILE_INFORMATION); |
Steve French | c67593a | 2005-04-28 22:41:04 -0700 | [diff] [blame] | 2590 | byte_count = params + 1 /* pad */ ; |
Steve French | f654bac | 2005-04-28 22:41:04 -0700 | [diff] [blame] | 2591 | pSMB->t2.TotalParameterCount = cpu_to_le16(params); |
| 2592 | pSMB->t2.ParameterCount = pSMB->t2.TotalParameterCount; |
| 2593 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_ATTR_FLAGS); |
Steve French | c67593a | 2005-04-28 22:41:04 -0700 | [diff] [blame] | 2594 | pSMB->Pad = 0; |
Steve French | f654bac | 2005-04-28 22:41:04 -0700 | [diff] [blame] | 2595 | pSMB->Fid = netfid; |
| 2596 | pSMB->hdr.smb_buf_length += byte_count; |
| 2597 | pSMB->t2.ByteCount = cpu_to_le16(byte_count); |
| 2598 | |
| 2599 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 2600 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 2601 | if (rc) { |
| 2602 | cFYI(1, ("error %d in GetExtAttr", rc)); |
| 2603 | } else { |
| 2604 | /* decode response */ |
| 2605 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
| 2606 | if (rc || (pSMBr->ByteCount < 2)) |
| 2607 | /* BB also check enough total bytes returned */ |
| 2608 | /* If rc should we check for EOPNOSUPP and |
| 2609 | disable the srvino flag? or in caller? */ |
| 2610 | rc = -EIO; /* bad smb */ |
| 2611 | else { |
| 2612 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
| 2613 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); |
| 2614 | struct file_chattr_info * pfinfo; |
| 2615 | /* BB Do we need a cast or hash here ? */ |
| 2616 | if(count != 16) { |
| 2617 | cFYI(1, ("Illegal size ret in GetExtAttr")); |
| 2618 | rc = -EIO; |
| 2619 | goto GetExtAttrOut; |
| 2620 | } |
| 2621 | pfinfo = (struct file_chattr_info *) |
| 2622 | (data_offset + (char *) &pSMBr->hdr.Protocol); |
| 2623 | *pExtAttrBits = le64_to_cpu(pfinfo->mode); |
| 2624 | *pMask = le64_to_cpu(pfinfo->mask); |
| 2625 | } |
| 2626 | } |
| 2627 | GetExtAttrOut: |
| 2628 | cifs_buf_release(pSMB); |
| 2629 | if (rc == -EAGAIN) |
| 2630 | goto GetExtAttrRetry; |
| 2631 | return rc; |
| 2632 | } |
| 2633 | |
| 2634 | |
| 2635 | #endif /* CONFIG_POSIX */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2636 | |
Steve French | eeac804 | 2006-01-13 21:34:58 -0800 | [diff] [blame] | 2637 | |
| 2638 | /* security id for everyone */ |
| 2639 | const struct cifs_sid sid_everyone = {1, 1, {0, 0, 0, 0, 0, 0}, {0, 0, 0, 0}}; |
| 2640 | /* group users */ |
| 2641 | const struct cifs_sid sid_user = {1, 2 , {0, 0, 0, 0, 0, 5}, {32, 545, 0, 0}}; |
| 2642 | |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 2643 | /* Convert CIFS ACL to POSIX form */ |
Steve French | eeac804 | 2006-01-13 21:34:58 -0800 | [diff] [blame] | 2644 | static int parse_sec_desc(struct cifs_sid * psec_desc, int acl_len) |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 2645 | { |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 2646 | return 0; |
| 2647 | } |
| 2648 | |
| 2649 | /* Get Security Descriptor (by handle) from remote server for a file or dir */ |
| 2650 | int |
| 2651 | CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid, |
| 2652 | /* BB fix up return info */ char *acl_inf, const int buflen, |
| 2653 | const int acl_type /* ACCESS/DEFAULT not sure implication */) |
| 2654 | { |
| 2655 | int rc = 0; |
| 2656 | int buf_type = 0; |
| 2657 | QUERY_SEC_DESC_REQ * pSMB; |
| 2658 | struct kvec iov[1]; |
| 2659 | |
| 2660 | cFYI(1, ("GetCifsACL")); |
| 2661 | |
| 2662 | rc = smb_init_ntransact(NT_TRANSACT_QUERY_SECURITY_DESC, 0, |
| 2663 | 8 /* parm len */, tcon, (void **) &pSMB); |
| 2664 | if (rc) |
| 2665 | return rc; |
| 2666 | |
| 2667 | pSMB->MaxParameterCount = cpu_to_le32(4); |
| 2668 | /* BB TEST with big acls that might need to be e.g. larger than 16K */ |
| 2669 | pSMB->MaxSetupCount = 0; |
| 2670 | pSMB->Fid = fid; /* file handle always le */ |
| 2671 | pSMB->AclFlags = cpu_to_le32(CIFS_ACL_OWNER | CIFS_ACL_GROUP | |
| 2672 | CIFS_ACL_DACL); |
| 2673 | pSMB->ByteCount = cpu_to_le16(11); /* 3 bytes pad + 8 bytes parm */ |
| 2674 | pSMB->hdr.smb_buf_length += 11; |
| 2675 | iov[0].iov_base = (char *)pSMB; |
| 2676 | iov[0].iov_len = pSMB->hdr.smb_buf_length + 4; |
| 2677 | |
| 2678 | rc = SendReceive2(xid, tcon->ses, iov, 1 /* num iovec */, &buf_type, 0); |
| 2679 | cifs_stats_inc(&tcon->num_acl_get); |
| 2680 | if (rc) { |
| 2681 | cFYI(1, ("Send error in QuerySecDesc = %d", rc)); |
| 2682 | } else { /* decode response */ |
Steve French | d41f084 | 2006-01-17 19:16:53 -0800 | [diff] [blame] | 2683 | struct cifs_sid * psec_desc; |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 2684 | __le32 * parm; |
| 2685 | int parm_len; |
| 2686 | int data_len; |
| 2687 | int acl_len; |
| 2688 | struct smb_com_ntransact_rsp * pSMBr; |
| 2689 | |
| 2690 | /* validate_nttransact */ |
| 2691 | rc = validate_ntransact(iov[0].iov_base, (char **)&parm, |
| 2692 | (char **)&psec_desc, |
| 2693 | &parm_len, &data_len); |
| 2694 | |
| 2695 | if(rc) |
| 2696 | goto qsec_out; |
| 2697 | pSMBr = (struct smb_com_ntransact_rsp *)iov[0].iov_base; |
| 2698 | |
| 2699 | cERROR(1,("smb %p parm %p data %p",pSMBr,parm,psec_desc)); /* BB removeme BB */ |
| 2700 | |
| 2701 | if (le32_to_cpu(pSMBr->ParameterCount) != 4) { |
| 2702 | rc = -EIO; /* bad smb */ |
| 2703 | goto qsec_out; |
| 2704 | } |
| 2705 | |
| 2706 | /* BB check that data area is minimum length and as big as acl_len */ |
| 2707 | |
| 2708 | acl_len = le32_to_cpu(*(__le32 *)parm); |
| 2709 | /* BB check if(acl_len > bufsize) */ |
| 2710 | |
| 2711 | parse_sec_desc(psec_desc, acl_len); |
| 2712 | } |
| 2713 | qsec_out: |
| 2714 | if(buf_type == CIFS_SMALL_BUFFER) |
| 2715 | cifs_small_buf_release(iov[0].iov_base); |
| 2716 | else if(buf_type == CIFS_LARGE_BUFFER) |
| 2717 | cifs_buf_release(iov[0].iov_base); |
Steve French | 4b8f930 | 2006-02-26 16:41:18 +0000 | [diff] [blame] | 2718 | /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */ |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 2719 | return rc; |
| 2720 | } |
| 2721 | |
| 2722 | |
Steve French | 6b8edfe | 2005-08-23 20:26:03 -0700 | [diff] [blame] | 2723 | /* Legacy Query Path Information call for lookup to old servers such |
| 2724 | as Win9x/WinME */ |
| 2725 | int SMBQueryInformation(const int xid, struct cifsTconInfo *tcon, |
| 2726 | const unsigned char *searchName, |
| 2727 | FILE_ALL_INFO * pFinfo, |
| 2728 | const struct nls_table *nls_codepage, int remap) |
| 2729 | { |
| 2730 | QUERY_INFORMATION_REQ * pSMB; |
| 2731 | QUERY_INFORMATION_RSP * pSMBr; |
| 2732 | int rc = 0; |
| 2733 | int bytes_returned; |
| 2734 | int name_len; |
| 2735 | |
| 2736 | cFYI(1, ("In SMBQPath path %s", searchName)); |
| 2737 | QInfRetry: |
| 2738 | rc = smb_init(SMB_COM_QUERY_INFORMATION, 0, tcon, (void **) &pSMB, |
| 2739 | (void **) &pSMBr); |
| 2740 | if (rc) |
| 2741 | return rc; |
| 2742 | |
| 2743 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 2744 | name_len = |
| 2745 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
| 2746 | PATH_MAX, nls_codepage, remap); |
| 2747 | name_len++; /* trailing null */ |
| 2748 | name_len *= 2; |
| 2749 | } else { |
| 2750 | name_len = strnlen(searchName, PATH_MAX); |
| 2751 | name_len++; /* trailing null */ |
| 2752 | strncpy(pSMB->FileName, searchName, name_len); |
| 2753 | } |
| 2754 | pSMB->BufferFormat = 0x04; |
| 2755 | name_len++; /* account for buffer type byte */ |
| 2756 | pSMB->hdr.smb_buf_length += (__u16) name_len; |
| 2757 | pSMB->ByteCount = cpu_to_le16(name_len); |
| 2758 | |
| 2759 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 2760 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 2761 | if (rc) { |
| 2762 | cFYI(1, ("Send error in QueryInfo = %d", rc)); |
| 2763 | } else if (pFinfo) { /* decode response */ |
| 2764 | memset(pFinfo, 0, sizeof(FILE_ALL_INFO)); |
Steve French | 70ca734 | 2005-09-22 16:32:06 -0700 | [diff] [blame] | 2765 | pFinfo->AllocationSize = |
| 2766 | cpu_to_le64(le32_to_cpu(pSMBr->size)); |
| 2767 | pFinfo->EndOfFile = pFinfo->AllocationSize; |
| 2768 | pFinfo->Attributes = |
| 2769 | cpu_to_le32(le16_to_cpu(pSMBr->attr)); |
Steve French | 6b8edfe | 2005-08-23 20:26:03 -0700 | [diff] [blame] | 2770 | } else |
| 2771 | rc = -EIO; /* bad buffer passed in */ |
| 2772 | |
| 2773 | cifs_buf_release(pSMB); |
| 2774 | |
| 2775 | if (rc == -EAGAIN) |
| 2776 | goto QInfRetry; |
| 2777 | |
| 2778 | return rc; |
| 2779 | } |
| 2780 | |
| 2781 | |
| 2782 | |
| 2783 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2784 | int |
| 2785 | CIFSSMBQPathInfo(const int xid, struct cifsTconInfo *tcon, |
| 2786 | const unsigned char *searchName, |
| 2787 | FILE_ALL_INFO * pFindData, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 2788 | const struct nls_table *nls_codepage, int remap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2789 | { |
| 2790 | /* level 263 SMB_QUERY_FILE_ALL_INFO */ |
| 2791 | TRANSACTION2_QPI_REQ *pSMB = NULL; |
| 2792 | TRANSACTION2_QPI_RSP *pSMBr = NULL; |
| 2793 | int rc = 0; |
| 2794 | int bytes_returned; |
| 2795 | int name_len; |
| 2796 | __u16 params, byte_count; |
| 2797 | |
| 2798 | /* cFYI(1, ("In QPathInfo path %s", searchName)); */ |
| 2799 | QPathInfoRetry: |
| 2800 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 2801 | (void **) &pSMBr); |
| 2802 | if (rc) |
| 2803 | return rc; |
| 2804 | |
| 2805 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 2806 | name_len = |
Steve French | b1a4569 | 2005-05-17 16:07:23 -0500 | [diff] [blame] | 2807 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 2808 | PATH_MAX, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2809 | name_len++; /* trailing null */ |
| 2810 | name_len *= 2; |
| 2811 | } else { /* BB improve the check for buffer overruns BB */ |
| 2812 | name_len = strnlen(searchName, PATH_MAX); |
| 2813 | name_len++; /* trailing null */ |
| 2814 | strncpy(pSMB->FileName, searchName, name_len); |
| 2815 | } |
| 2816 | |
| 2817 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */ ; |
| 2818 | pSMB->TotalDataCount = 0; |
| 2819 | pSMB->MaxParameterCount = cpu_to_le16(2); |
| 2820 | pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ |
| 2821 | pSMB->MaxSetupCount = 0; |
| 2822 | pSMB->Reserved = 0; |
| 2823 | pSMB->Flags = 0; |
| 2824 | pSMB->Timeout = 0; |
| 2825 | pSMB->Reserved2 = 0; |
| 2826 | pSMB->ParameterOffset = cpu_to_le16(offsetof( |
| 2827 | struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); |
| 2828 | pSMB->DataCount = 0; |
| 2829 | pSMB->DataOffset = 0; |
| 2830 | pSMB->SetupCount = 1; |
| 2831 | pSMB->Reserved3 = 0; |
| 2832 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); |
| 2833 | byte_count = params + 1 /* pad */ ; |
| 2834 | pSMB->TotalParameterCount = cpu_to_le16(params); |
| 2835 | pSMB->ParameterCount = pSMB->TotalParameterCount; |
| 2836 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_ALL_INFO); |
| 2837 | pSMB->Reserved4 = 0; |
| 2838 | pSMB->hdr.smb_buf_length += byte_count; |
| 2839 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 2840 | |
| 2841 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 2842 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 2843 | if (rc) { |
| 2844 | cFYI(1, ("Send error in QPathInfo = %d", rc)); |
| 2845 | } else { /* decode response */ |
| 2846 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
| 2847 | |
| 2848 | if (rc || (pSMBr->ByteCount < 40)) |
| 2849 | rc = -EIO; /* bad smb */ |
| 2850 | else if (pFindData){ |
| 2851 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
| 2852 | memcpy((char *) pFindData, |
| 2853 | (char *) &pSMBr->hdr.Protocol + |
| 2854 | data_offset, sizeof (FILE_ALL_INFO)); |
| 2855 | } else |
| 2856 | rc = -ENOMEM; |
| 2857 | } |
| 2858 | cifs_buf_release(pSMB); |
| 2859 | if (rc == -EAGAIN) |
| 2860 | goto QPathInfoRetry; |
| 2861 | |
| 2862 | return rc; |
| 2863 | } |
| 2864 | |
| 2865 | int |
| 2866 | CIFSSMBUnixQPathInfo(const int xid, struct cifsTconInfo *tcon, |
| 2867 | const unsigned char *searchName, |
| 2868 | FILE_UNIX_BASIC_INFO * pFindData, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 2869 | const struct nls_table *nls_codepage, int remap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2870 | { |
| 2871 | /* SMB_QUERY_FILE_UNIX_BASIC */ |
| 2872 | TRANSACTION2_QPI_REQ *pSMB = NULL; |
| 2873 | TRANSACTION2_QPI_RSP *pSMBr = NULL; |
| 2874 | int rc = 0; |
| 2875 | int bytes_returned = 0; |
| 2876 | int name_len; |
| 2877 | __u16 params, byte_count; |
| 2878 | |
| 2879 | cFYI(1, ("In QPathInfo (Unix) the path %s", searchName)); |
| 2880 | UnixQPathInfoRetry: |
| 2881 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 2882 | (void **) &pSMBr); |
| 2883 | if (rc) |
| 2884 | return rc; |
| 2885 | |
| 2886 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 2887 | name_len = |
Steve French | b1a4569 | 2005-05-17 16:07:23 -0500 | [diff] [blame] | 2888 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 2889 | PATH_MAX, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2890 | name_len++; /* trailing null */ |
| 2891 | name_len *= 2; |
| 2892 | } else { /* BB improve the check for buffer overruns BB */ |
| 2893 | name_len = strnlen(searchName, PATH_MAX); |
| 2894 | name_len++; /* trailing null */ |
| 2895 | strncpy(pSMB->FileName, searchName, name_len); |
| 2896 | } |
| 2897 | |
| 2898 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */ ; |
| 2899 | pSMB->TotalDataCount = 0; |
| 2900 | pSMB->MaxParameterCount = cpu_to_le16(2); |
| 2901 | /* BB find exact max SMB PDU from sess structure BB */ |
| 2902 | pSMB->MaxDataCount = cpu_to_le16(4000); |
| 2903 | pSMB->MaxSetupCount = 0; |
| 2904 | pSMB->Reserved = 0; |
| 2905 | pSMB->Flags = 0; |
| 2906 | pSMB->Timeout = 0; |
| 2907 | pSMB->Reserved2 = 0; |
| 2908 | pSMB->ParameterOffset = cpu_to_le16(offsetof( |
| 2909 | struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); |
| 2910 | pSMB->DataCount = 0; |
| 2911 | pSMB->DataOffset = 0; |
| 2912 | pSMB->SetupCount = 1; |
| 2913 | pSMB->Reserved3 = 0; |
| 2914 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); |
| 2915 | byte_count = params + 1 /* pad */ ; |
| 2916 | pSMB->TotalParameterCount = cpu_to_le16(params); |
| 2917 | pSMB->ParameterCount = pSMB->TotalParameterCount; |
| 2918 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_UNIX_BASIC); |
| 2919 | pSMB->Reserved4 = 0; |
| 2920 | pSMB->hdr.smb_buf_length += byte_count; |
| 2921 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 2922 | |
| 2923 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 2924 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 2925 | if (rc) { |
| 2926 | cFYI(1, ("Send error in QPathInfo = %d", rc)); |
| 2927 | } else { /* decode response */ |
| 2928 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
| 2929 | |
| 2930 | if (rc || (pSMBr->ByteCount < sizeof(FILE_UNIX_BASIC_INFO))) { |
| 2931 | rc = -EIO; /* bad smb */ |
| 2932 | } else { |
| 2933 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
| 2934 | memcpy((char *) pFindData, |
| 2935 | (char *) &pSMBr->hdr.Protocol + |
| 2936 | data_offset, |
| 2937 | sizeof (FILE_UNIX_BASIC_INFO)); |
| 2938 | } |
| 2939 | } |
| 2940 | cifs_buf_release(pSMB); |
| 2941 | if (rc == -EAGAIN) |
| 2942 | goto UnixQPathInfoRetry; |
| 2943 | |
| 2944 | return rc; |
| 2945 | } |
| 2946 | |
| 2947 | #if 0 /* function unused at present */ |
| 2948 | int CIFSFindSingle(const int xid, struct cifsTconInfo *tcon, |
| 2949 | const char *searchName, FILE_ALL_INFO * findData, |
| 2950 | const struct nls_table *nls_codepage) |
| 2951 | { |
| 2952 | /* level 257 SMB_ */ |
| 2953 | TRANSACTION2_FFIRST_REQ *pSMB = NULL; |
| 2954 | TRANSACTION2_FFIRST_RSP *pSMBr = NULL; |
| 2955 | int rc = 0; |
| 2956 | int bytes_returned; |
| 2957 | int name_len; |
| 2958 | __u16 params, byte_count; |
| 2959 | |
| 2960 | cFYI(1, ("In FindUnique")); |
| 2961 | findUniqueRetry: |
| 2962 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 2963 | (void **) &pSMBr); |
| 2964 | if (rc) |
| 2965 | return rc; |
| 2966 | |
| 2967 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 2968 | name_len = |
Steve French | b1a4569 | 2005-05-17 16:07:23 -0500 | [diff] [blame] | 2969 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, PATH_MAX |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2970 | /* find define for this maxpathcomponent */ |
| 2971 | , nls_codepage); |
| 2972 | name_len++; /* trailing null */ |
| 2973 | name_len *= 2; |
| 2974 | } else { /* BB improve the check for buffer overruns BB */ |
| 2975 | name_len = strnlen(searchName, PATH_MAX); |
| 2976 | name_len++; /* trailing null */ |
| 2977 | strncpy(pSMB->FileName, searchName, name_len); |
| 2978 | } |
| 2979 | |
| 2980 | params = 12 + name_len /* includes null */ ; |
| 2981 | pSMB->TotalDataCount = 0; /* no EAs */ |
| 2982 | pSMB->MaxParameterCount = cpu_to_le16(2); |
| 2983 | pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ |
| 2984 | pSMB->MaxSetupCount = 0; |
| 2985 | pSMB->Reserved = 0; |
| 2986 | pSMB->Flags = 0; |
| 2987 | pSMB->Timeout = 0; |
| 2988 | pSMB->Reserved2 = 0; |
| 2989 | pSMB->ParameterOffset = cpu_to_le16( |
| 2990 | offsetof(struct smb_com_transaction2_ffirst_req,InformationLevel) - 4); |
| 2991 | pSMB->DataCount = 0; |
| 2992 | pSMB->DataOffset = 0; |
| 2993 | pSMB->SetupCount = 1; /* one byte, no need to le convert */ |
| 2994 | pSMB->Reserved3 = 0; |
| 2995 | pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_FIRST); |
| 2996 | byte_count = params + 1 /* pad */ ; |
| 2997 | pSMB->TotalParameterCount = cpu_to_le16(params); |
| 2998 | pSMB->ParameterCount = pSMB->TotalParameterCount; |
| 2999 | pSMB->SearchAttributes = |
| 3000 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | |
| 3001 | ATTR_DIRECTORY); |
| 3002 | pSMB->SearchCount = cpu_to_le16(16); /* BB increase */ |
| 3003 | pSMB->SearchFlags = cpu_to_le16(1); |
| 3004 | pSMB->InformationLevel = cpu_to_le16(SMB_FIND_FILE_DIRECTORY_INFO); |
| 3005 | pSMB->SearchStorageType = 0; /* BB what should we set this to? BB */ |
| 3006 | pSMB->hdr.smb_buf_length += byte_count; |
| 3007 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 3008 | |
| 3009 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 3010 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 3011 | |
| 3012 | if (rc) { |
| 3013 | cFYI(1, ("Send error in FindFileDirInfo = %d", rc)); |
| 3014 | } else { /* decode response */ |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 3015 | cifs_stats_inc(&tcon->num_ffirst); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3016 | /* BB fill in */ |
| 3017 | } |
| 3018 | |
| 3019 | cifs_buf_release(pSMB); |
| 3020 | if (rc == -EAGAIN) |
| 3021 | goto findUniqueRetry; |
| 3022 | |
| 3023 | return rc; |
| 3024 | } |
| 3025 | #endif /* end unused (temporarily) function */ |
| 3026 | |
| 3027 | /* xid, tcon, searchName and codepage are input parms, rest are returned */ |
| 3028 | int |
| 3029 | CIFSFindFirst(const int xid, struct cifsTconInfo *tcon, |
| 3030 | const char *searchName, |
| 3031 | const struct nls_table *nls_codepage, |
| 3032 | __u16 * pnetfid, |
Jeremy Allison | ac67055 | 2005-06-22 17:26:35 -0700 | [diff] [blame] | 3033 | struct cifs_search_info * psrch_inf, int remap, const char dirsep) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3034 | { |
| 3035 | /* level 257 SMB_ */ |
| 3036 | TRANSACTION2_FFIRST_REQ *pSMB = NULL; |
| 3037 | TRANSACTION2_FFIRST_RSP *pSMBr = NULL; |
| 3038 | T2_FFIRST_RSP_PARMS * parms; |
| 3039 | int rc = 0; |
| 3040 | int bytes_returned = 0; |
| 3041 | int name_len; |
| 3042 | __u16 params, byte_count; |
| 3043 | |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 3044 | cFYI(1, ("In FindFirst for %s",searchName)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3045 | |
| 3046 | findFirstRetry: |
| 3047 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 3048 | (void **) &pSMBr); |
| 3049 | if (rc) |
| 3050 | return rc; |
| 3051 | |
| 3052 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 3053 | name_len = |
Steve French | b1a4569 | 2005-05-17 16:07:23 -0500 | [diff] [blame] | 3054 | cifsConvertToUCS((__le16 *) pSMB->FileName,searchName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 3055 | PATH_MAX, nls_codepage, remap); |
| 3056 | /* We can not add the asterik earlier in case |
| 3057 | it got remapped to 0xF03A as if it were part of the |
| 3058 | directory name instead of a wildcard */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3059 | name_len *= 2; |
Jeremy Allison | ac67055 | 2005-06-22 17:26:35 -0700 | [diff] [blame] | 3060 | pSMB->FileName[name_len] = dirsep; |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 3061 | pSMB->FileName[name_len+1] = 0; |
| 3062 | pSMB->FileName[name_len+2] = '*'; |
| 3063 | pSMB->FileName[name_len+3] = 0; |
| 3064 | name_len += 4; /* now the trailing null */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3065 | pSMB->FileName[name_len] = 0; /* null terminate just in case */ |
| 3066 | pSMB->FileName[name_len+1] = 0; |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 3067 | name_len += 2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3068 | } else { /* BB add check for overrun of SMB buf BB */ |
| 3069 | name_len = strnlen(searchName, PATH_MAX); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3070 | /* BB fix here and in unicode clause above ie |
| 3071 | if(name_len > buffersize-header) |
| 3072 | free buffer exit; BB */ |
| 3073 | strncpy(pSMB->FileName, searchName, name_len); |
Jeremy Allison | ac67055 | 2005-06-22 17:26:35 -0700 | [diff] [blame] | 3074 | pSMB->FileName[name_len] = dirsep; |
Steve French | 6857547 | 2005-04-30 11:10:57 -0700 | [diff] [blame] | 3075 | pSMB->FileName[name_len+1] = '*'; |
| 3076 | pSMB->FileName[name_len+2] = 0; |
| 3077 | name_len += 3; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3078 | } |
| 3079 | |
| 3080 | params = 12 + name_len /* includes null */ ; |
| 3081 | pSMB->TotalDataCount = 0; /* no EAs */ |
| 3082 | pSMB->MaxParameterCount = cpu_to_le16(10); |
| 3083 | pSMB->MaxDataCount = cpu_to_le16((tcon->ses->server->maxBuf - |
| 3084 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); |
| 3085 | pSMB->MaxSetupCount = 0; |
| 3086 | pSMB->Reserved = 0; |
| 3087 | pSMB->Flags = 0; |
| 3088 | pSMB->Timeout = 0; |
| 3089 | pSMB->Reserved2 = 0; |
| 3090 | byte_count = params + 1 /* pad */ ; |
| 3091 | pSMB->TotalParameterCount = cpu_to_le16(params); |
| 3092 | pSMB->ParameterCount = pSMB->TotalParameterCount; |
| 3093 | pSMB->ParameterOffset = cpu_to_le16( |
Steve French | 8827481 | 2006-03-09 22:21:45 +0000 | [diff] [blame] | 3094 | offsetof(struct smb_com_transaction2_ffirst_req, SearchAttributes) |
| 3095 | - 4); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3096 | pSMB->DataCount = 0; |
| 3097 | pSMB->DataOffset = 0; |
| 3098 | pSMB->SetupCount = 1; /* one byte, no need to make endian neutral */ |
| 3099 | pSMB->Reserved3 = 0; |
| 3100 | pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_FIRST); |
| 3101 | pSMB->SearchAttributes = |
| 3102 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | |
| 3103 | ATTR_DIRECTORY); |
| 3104 | pSMB->SearchCount= cpu_to_le16(CIFSMaxBufSize/sizeof(FILE_UNIX_INFO)); |
| 3105 | pSMB->SearchFlags = cpu_to_le16(CIFS_SEARCH_CLOSE_AT_END | |
| 3106 | CIFS_SEARCH_RETURN_RESUME); |
| 3107 | pSMB->InformationLevel = cpu_to_le16(psrch_inf->info_level); |
| 3108 | |
| 3109 | /* BB what should we set StorageType to? Does it matter? BB */ |
| 3110 | pSMB->SearchStorageType = 0; |
| 3111 | pSMB->hdr.smb_buf_length += byte_count; |
| 3112 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 3113 | |
| 3114 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 3115 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 3116 | cifs_stats_inc(&tcon->num_ffirst); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3117 | |
Steve French | 8827481 | 2006-03-09 22:21:45 +0000 | [diff] [blame] | 3118 | if (rc) {/* BB add logic to retry regular search if Unix search |
| 3119 | rejected unexpectedly by server */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3120 | /* BB Add code to handle unsupported level rc */ |
| 3121 | cFYI(1, ("Error in FindFirst = %d", rc)); |
Steve French | 1982c34 | 2005-08-17 12:38:22 -0700 | [diff] [blame] | 3122 | |
Steve French | 8827481 | 2006-03-09 22:21:45 +0000 | [diff] [blame] | 3123 | cifs_buf_release(pSMB); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3124 | |
| 3125 | /* BB eventually could optimize out free and realloc of buf */ |
| 3126 | /* for this case */ |
| 3127 | if (rc == -EAGAIN) |
| 3128 | goto findFirstRetry; |
| 3129 | } else { /* decode response */ |
| 3130 | /* BB remember to free buffer if error BB */ |
| 3131 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
| 3132 | if(rc == 0) { |
| 3133 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) |
| 3134 | psrch_inf->unicode = TRUE; |
| 3135 | else |
| 3136 | psrch_inf->unicode = FALSE; |
| 3137 | |
| 3138 | psrch_inf->ntwrk_buf_start = (char *)pSMBr; |
Steve French | d47d7c1 | 2006-02-28 03:45:48 +0000 | [diff] [blame] | 3139 | psrch_inf->smallBuf = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3140 | psrch_inf->srch_entries_start = |
| 3141 | (char *) &pSMBr->hdr.Protocol + |
| 3142 | le16_to_cpu(pSMBr->t2.DataOffset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3143 | parms = (T2_FFIRST_RSP_PARMS *)((char *) &pSMBr->hdr.Protocol + |
| 3144 | le16_to_cpu(pSMBr->t2.ParameterOffset)); |
| 3145 | |
| 3146 | if(parms->EndofSearch) |
| 3147 | psrch_inf->endOfSearch = TRUE; |
| 3148 | else |
| 3149 | psrch_inf->endOfSearch = FALSE; |
| 3150 | |
| 3151 | psrch_inf->entries_in_buffer = le16_to_cpu(parms->SearchCount); |
Steve French | 6080823 | 2006-04-22 15:53:05 +0000 | [diff] [blame] | 3152 | psrch_inf->index_of_last_entry = 2 /* skip . and .. */ + |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3153 | psrch_inf->entries_in_buffer; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3154 | *pnetfid = parms->SearchHandle; |
| 3155 | } else { |
| 3156 | cifs_buf_release(pSMB); |
| 3157 | } |
| 3158 | } |
| 3159 | |
| 3160 | return rc; |
| 3161 | } |
| 3162 | |
| 3163 | int CIFSFindNext(const int xid, struct cifsTconInfo *tcon, |
| 3164 | __u16 searchHandle, struct cifs_search_info * psrch_inf) |
| 3165 | { |
| 3166 | TRANSACTION2_FNEXT_REQ *pSMB = NULL; |
| 3167 | TRANSACTION2_FNEXT_RSP *pSMBr = NULL; |
| 3168 | T2_FNEXT_RSP_PARMS * parms; |
| 3169 | char *response_data; |
| 3170 | int rc = 0; |
| 3171 | int bytes_returned, name_len; |
| 3172 | __u16 params, byte_count; |
| 3173 | |
| 3174 | cFYI(1, ("In FindNext")); |
| 3175 | |
| 3176 | if(psrch_inf->endOfSearch == TRUE) |
| 3177 | return -ENOENT; |
| 3178 | |
| 3179 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 3180 | (void **) &pSMBr); |
| 3181 | if (rc) |
| 3182 | return rc; |
| 3183 | |
| 3184 | params = 14; /* includes 2 bytes of null string, converted to LE below */ |
| 3185 | byte_count = 0; |
| 3186 | pSMB->TotalDataCount = 0; /* no EAs */ |
| 3187 | pSMB->MaxParameterCount = cpu_to_le16(8); |
| 3188 | pSMB->MaxDataCount = |
| 3189 | cpu_to_le16((tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); |
| 3190 | pSMB->MaxSetupCount = 0; |
| 3191 | pSMB->Reserved = 0; |
| 3192 | pSMB->Flags = 0; |
| 3193 | pSMB->Timeout = 0; |
| 3194 | pSMB->Reserved2 = 0; |
| 3195 | pSMB->ParameterOffset = cpu_to_le16( |
| 3196 | offsetof(struct smb_com_transaction2_fnext_req,SearchHandle) - 4); |
| 3197 | pSMB->DataCount = 0; |
| 3198 | pSMB->DataOffset = 0; |
| 3199 | pSMB->SetupCount = 1; |
| 3200 | pSMB->Reserved3 = 0; |
| 3201 | pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_NEXT); |
| 3202 | pSMB->SearchHandle = searchHandle; /* always kept as le */ |
| 3203 | pSMB->SearchCount = |
| 3204 | cpu_to_le16(CIFSMaxBufSize / sizeof (FILE_UNIX_INFO)); |
| 3205 | /* test for Unix extensions */ |
| 3206 | /* if (tcon->ses->capabilities & CAP_UNIX) { |
| 3207 | pSMB->InformationLevel = cpu_to_le16(SMB_FIND_FILE_UNIX); |
| 3208 | psrch_inf->info_level = SMB_FIND_FILE_UNIX; |
| 3209 | } else { |
| 3210 | pSMB->InformationLevel = |
| 3211 | cpu_to_le16(SMB_FIND_FILE_DIRECTORY_INFO); |
| 3212 | psrch_inf->info_level = SMB_FIND_FILE_DIRECTORY_INFO; |
| 3213 | } */ |
| 3214 | pSMB->InformationLevel = cpu_to_le16(psrch_inf->info_level); |
| 3215 | pSMB->ResumeKey = psrch_inf->resume_key; |
| 3216 | pSMB->SearchFlags = |
| 3217 | cpu_to_le16(CIFS_SEARCH_CLOSE_AT_END | CIFS_SEARCH_RETURN_RESUME); |
| 3218 | |
| 3219 | name_len = psrch_inf->resume_name_len; |
| 3220 | params += name_len; |
| 3221 | if(name_len < PATH_MAX) { |
| 3222 | memcpy(pSMB->ResumeFileName, psrch_inf->presume_name, name_len); |
| 3223 | byte_count += name_len; |
Steve French | ef6724e | 2005-08-02 21:31:05 -0700 | [diff] [blame] | 3224 | /* 14 byte parm len above enough for 2 byte null terminator */ |
| 3225 | pSMB->ResumeFileName[name_len] = 0; |
| 3226 | pSMB->ResumeFileName[name_len+1] = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3227 | } else { |
| 3228 | rc = -EINVAL; |
| 3229 | goto FNext2_err_exit; |
| 3230 | } |
| 3231 | byte_count = params + 1 /* pad */ ; |
| 3232 | pSMB->TotalParameterCount = cpu_to_le16(params); |
| 3233 | pSMB->ParameterCount = pSMB->TotalParameterCount; |
| 3234 | pSMB->hdr.smb_buf_length += byte_count; |
| 3235 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 3236 | |
| 3237 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 3238 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 3239 | cifs_stats_inc(&tcon->num_fnext); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3240 | if (rc) { |
| 3241 | if (rc == -EBADF) { |
| 3242 | psrch_inf->endOfSearch = TRUE; |
| 3243 | rc = 0; /* search probably was closed at end of search above */ |
| 3244 | } else |
| 3245 | cFYI(1, ("FindNext returned = %d", rc)); |
| 3246 | } else { /* decode response */ |
| 3247 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
| 3248 | |
| 3249 | if(rc == 0) { |
| 3250 | /* BB fixme add lock for file (srch_info) struct here */ |
| 3251 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) |
| 3252 | psrch_inf->unicode = TRUE; |
| 3253 | else |
| 3254 | psrch_inf->unicode = FALSE; |
| 3255 | response_data = (char *) &pSMBr->hdr.Protocol + |
| 3256 | le16_to_cpu(pSMBr->t2.ParameterOffset); |
| 3257 | parms = (T2_FNEXT_RSP_PARMS *)response_data; |
| 3258 | response_data = (char *)&pSMBr->hdr.Protocol + |
| 3259 | le16_to_cpu(pSMBr->t2.DataOffset); |
Steve French | d47d7c1 | 2006-02-28 03:45:48 +0000 | [diff] [blame] | 3260 | if(psrch_inf->smallBuf) |
| 3261 | cifs_small_buf_release( |
| 3262 | psrch_inf->ntwrk_buf_start); |
| 3263 | else |
| 3264 | cifs_buf_release(psrch_inf->ntwrk_buf_start); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3265 | psrch_inf->srch_entries_start = response_data; |
| 3266 | psrch_inf->ntwrk_buf_start = (char *)pSMB; |
Steve French | d47d7c1 | 2006-02-28 03:45:48 +0000 | [diff] [blame] | 3267 | psrch_inf->smallBuf = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3268 | if(parms->EndofSearch) |
| 3269 | psrch_inf->endOfSearch = TRUE; |
| 3270 | else |
| 3271 | psrch_inf->endOfSearch = FALSE; |
| 3272 | |
| 3273 | psrch_inf->entries_in_buffer = le16_to_cpu(parms->SearchCount); |
| 3274 | psrch_inf->index_of_last_entry += |
| 3275 | psrch_inf->entries_in_buffer; |
| 3276 | /* cFYI(1,("fnxt2 entries in buf %d index_of_last %d",psrch_inf->entries_in_buffer,psrch_inf->index_of_last_entry)); */ |
| 3277 | |
| 3278 | /* BB fixme add unlock here */ |
| 3279 | } |
| 3280 | |
| 3281 | } |
| 3282 | |
| 3283 | /* BB On error, should we leave previous search buf (and count and |
| 3284 | last entry fields) intact or free the previous one? */ |
| 3285 | |
| 3286 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
| 3287 | since file handle passed in no longer valid */ |
| 3288 | FNext2_err_exit: |
| 3289 | if (rc != 0) |
| 3290 | cifs_buf_release(pSMB); |
| 3291 | |
| 3292 | return rc; |
| 3293 | } |
| 3294 | |
| 3295 | int |
| 3296 | CIFSFindClose(const int xid, struct cifsTconInfo *tcon, const __u16 searchHandle) |
| 3297 | { |
| 3298 | int rc = 0; |
| 3299 | FINDCLOSE_REQ *pSMB = NULL; |
| 3300 | CLOSE_RSP *pSMBr = NULL; /* BB removeme BB */ |
| 3301 | int bytes_returned; |
| 3302 | |
| 3303 | cFYI(1, ("In CIFSSMBFindClose")); |
| 3304 | rc = small_smb_init(SMB_COM_FIND_CLOSE2, 1, tcon, (void **)&pSMB); |
| 3305 | |
| 3306 | /* no sense returning error if session restarted |
| 3307 | as file handle has been closed */ |
| 3308 | if(rc == -EAGAIN) |
| 3309 | return 0; |
| 3310 | if (rc) |
| 3311 | return rc; |
| 3312 | |
| 3313 | pSMBr = (CLOSE_RSP *)pSMB; /* BB removeme BB */ |
| 3314 | pSMB->FileID = searchHandle; |
| 3315 | pSMB->ByteCount = 0; |
| 3316 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 3317 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 3318 | if (rc) { |
| 3319 | cERROR(1, ("Send error in FindClose = %d", rc)); |
| 3320 | } |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 3321 | cifs_stats_inc(&tcon->num_fclose); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3322 | cifs_small_buf_release(pSMB); |
| 3323 | |
| 3324 | /* Since session is dead, search handle closed on server already */ |
| 3325 | if (rc == -EAGAIN) |
| 3326 | rc = 0; |
| 3327 | |
| 3328 | return rc; |
| 3329 | } |
| 3330 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3331 | int |
| 3332 | CIFSGetSrvInodeNumber(const int xid, struct cifsTconInfo *tcon, |
| 3333 | const unsigned char *searchName, |
| 3334 | __u64 * inode_number, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 3335 | const struct nls_table *nls_codepage, int remap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3336 | { |
| 3337 | int rc = 0; |
| 3338 | TRANSACTION2_QPI_REQ *pSMB = NULL; |
| 3339 | TRANSACTION2_QPI_RSP *pSMBr = NULL; |
| 3340 | int name_len, bytes_returned; |
| 3341 | __u16 params, byte_count; |
| 3342 | |
| 3343 | cFYI(1,("In GetSrvInodeNum for %s",searchName)); |
| 3344 | if(tcon == NULL) |
| 3345 | return -ENODEV; |
| 3346 | |
| 3347 | GetInodeNumberRetry: |
| 3348 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 3349 | (void **) &pSMBr); |
| 3350 | if (rc) |
| 3351 | return rc; |
| 3352 | |
| 3353 | |
| 3354 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 3355 | name_len = |
Steve French | b1a4569 | 2005-05-17 16:07:23 -0500 | [diff] [blame] | 3356 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 3357 | PATH_MAX,nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3358 | name_len++; /* trailing null */ |
| 3359 | name_len *= 2; |
| 3360 | } else { /* BB improve the check for buffer overruns BB */ |
| 3361 | name_len = strnlen(searchName, PATH_MAX); |
| 3362 | name_len++; /* trailing null */ |
| 3363 | strncpy(pSMB->FileName, searchName, name_len); |
| 3364 | } |
| 3365 | |
| 3366 | params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ; |
| 3367 | pSMB->TotalDataCount = 0; |
| 3368 | pSMB->MaxParameterCount = cpu_to_le16(2); |
| 3369 | /* BB find exact max data count below from sess structure BB */ |
| 3370 | pSMB->MaxDataCount = cpu_to_le16(4000); |
| 3371 | pSMB->MaxSetupCount = 0; |
| 3372 | pSMB->Reserved = 0; |
| 3373 | pSMB->Flags = 0; |
| 3374 | pSMB->Timeout = 0; |
| 3375 | pSMB->Reserved2 = 0; |
| 3376 | pSMB->ParameterOffset = cpu_to_le16(offsetof( |
| 3377 | struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); |
| 3378 | pSMB->DataCount = 0; |
| 3379 | pSMB->DataOffset = 0; |
| 3380 | pSMB->SetupCount = 1; |
| 3381 | pSMB->Reserved3 = 0; |
| 3382 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); |
| 3383 | byte_count = params + 1 /* pad */ ; |
| 3384 | pSMB->TotalParameterCount = cpu_to_le16(params); |
| 3385 | pSMB->ParameterCount = pSMB->TotalParameterCount; |
| 3386 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_INTERNAL_INFO); |
| 3387 | pSMB->Reserved4 = 0; |
| 3388 | pSMB->hdr.smb_buf_length += byte_count; |
| 3389 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 3390 | |
| 3391 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 3392 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 3393 | if (rc) { |
| 3394 | cFYI(1, ("error %d in QueryInternalInfo", rc)); |
| 3395 | } else { |
| 3396 | /* decode response */ |
| 3397 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
| 3398 | if (rc || (pSMBr->ByteCount < 2)) |
| 3399 | /* BB also check enough total bytes returned */ |
| 3400 | /* If rc should we check for EOPNOSUPP and |
| 3401 | disable the srvino flag? or in caller? */ |
| 3402 | rc = -EIO; /* bad smb */ |
| 3403 | else { |
| 3404 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
| 3405 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); |
| 3406 | struct file_internal_info * pfinfo; |
| 3407 | /* BB Do we need a cast or hash here ? */ |
| 3408 | if(count < 8) { |
| 3409 | cFYI(1, ("Illegal size ret in QryIntrnlInf")); |
| 3410 | rc = -EIO; |
| 3411 | goto GetInodeNumOut; |
| 3412 | } |
| 3413 | pfinfo = (struct file_internal_info *) |
| 3414 | (data_offset + (char *) &pSMBr->hdr.Protocol); |
| 3415 | *inode_number = pfinfo->UniqueId; |
| 3416 | } |
| 3417 | } |
| 3418 | GetInodeNumOut: |
| 3419 | cifs_buf_release(pSMB); |
| 3420 | if (rc == -EAGAIN) |
| 3421 | goto GetInodeNumberRetry; |
| 3422 | return rc; |
| 3423 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3424 | |
| 3425 | int |
| 3426 | CIFSGetDFSRefer(const int xid, struct cifsSesInfo *ses, |
| 3427 | const unsigned char *searchName, |
| 3428 | unsigned char **targetUNCs, |
| 3429 | unsigned int *number_of_UNC_in_array, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 3430 | const struct nls_table *nls_codepage, int remap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3431 | { |
| 3432 | /* TRANS2_GET_DFS_REFERRAL */ |
| 3433 | TRANSACTION2_GET_DFS_REFER_REQ *pSMB = NULL; |
| 3434 | TRANSACTION2_GET_DFS_REFER_RSP *pSMBr = NULL; |
| 3435 | struct dfs_referral_level_3 * referrals = NULL; |
| 3436 | int rc = 0; |
| 3437 | int bytes_returned; |
| 3438 | int name_len; |
| 3439 | unsigned int i; |
| 3440 | char * temp; |
| 3441 | __u16 params, byte_count; |
| 3442 | *number_of_UNC_in_array = 0; |
| 3443 | *targetUNCs = NULL; |
| 3444 | |
| 3445 | cFYI(1, ("In GetDFSRefer the path %s", searchName)); |
| 3446 | if (ses == NULL) |
| 3447 | return -ENODEV; |
| 3448 | getDFSRetry: |
| 3449 | rc = smb_init(SMB_COM_TRANSACTION2, 15, NULL, (void **) &pSMB, |
| 3450 | (void **) &pSMBr); |
| 3451 | if (rc) |
| 3452 | return rc; |
Steve French | 1982c34 | 2005-08-17 12:38:22 -0700 | [diff] [blame] | 3453 | |
| 3454 | /* server pointer checked in called function, |
| 3455 | but should never be null here anyway */ |
| 3456 | pSMB->hdr.Mid = GetNextMid(ses->server); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3457 | pSMB->hdr.Tid = ses->ipc_tid; |
| 3458 | pSMB->hdr.Uid = ses->Suid; |
| 3459 | if (ses->capabilities & CAP_STATUS32) { |
| 3460 | pSMB->hdr.Flags2 |= SMBFLG2_ERR_STATUS; |
| 3461 | } |
| 3462 | if (ses->capabilities & CAP_DFS) { |
| 3463 | pSMB->hdr.Flags2 |= SMBFLG2_DFS; |
| 3464 | } |
| 3465 | |
| 3466 | if (ses->capabilities & CAP_UNICODE) { |
| 3467 | pSMB->hdr.Flags2 |= SMBFLG2_UNICODE; |
| 3468 | name_len = |
Steve French | b1a4569 | 2005-05-17 16:07:23 -0500 | [diff] [blame] | 3469 | cifsConvertToUCS((__le16 *) pSMB->RequestFileName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 3470 | searchName, PATH_MAX, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3471 | name_len++; /* trailing null */ |
| 3472 | name_len *= 2; |
| 3473 | } else { /* BB improve the check for buffer overruns BB */ |
| 3474 | name_len = strnlen(searchName, PATH_MAX); |
| 3475 | name_len++; /* trailing null */ |
| 3476 | strncpy(pSMB->RequestFileName, searchName, name_len); |
| 3477 | } |
| 3478 | |
| 3479 | params = 2 /* level */ + name_len /*includes null */ ; |
| 3480 | pSMB->TotalDataCount = 0; |
| 3481 | pSMB->DataCount = 0; |
| 3482 | pSMB->DataOffset = 0; |
| 3483 | pSMB->MaxParameterCount = 0; |
| 3484 | pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ |
| 3485 | pSMB->MaxSetupCount = 0; |
| 3486 | pSMB->Reserved = 0; |
| 3487 | pSMB->Flags = 0; |
| 3488 | pSMB->Timeout = 0; |
| 3489 | pSMB->Reserved2 = 0; |
| 3490 | pSMB->ParameterOffset = cpu_to_le16(offsetof( |
| 3491 | struct smb_com_transaction2_get_dfs_refer_req, MaxReferralLevel) - 4); |
| 3492 | pSMB->SetupCount = 1; |
| 3493 | pSMB->Reserved3 = 0; |
| 3494 | pSMB->SubCommand = cpu_to_le16(TRANS2_GET_DFS_REFERRAL); |
| 3495 | byte_count = params + 3 /* pad */ ; |
| 3496 | pSMB->ParameterCount = cpu_to_le16(params); |
| 3497 | pSMB->TotalParameterCount = pSMB->ParameterCount; |
| 3498 | pSMB->MaxReferralLevel = cpu_to_le16(3); |
| 3499 | pSMB->hdr.smb_buf_length += byte_count; |
| 3500 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 3501 | |
| 3502 | rc = SendReceive(xid, ses, (struct smb_hdr *) pSMB, |
| 3503 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 3504 | if (rc) { |
| 3505 | cFYI(1, ("Send error in GetDFSRefer = %d", rc)); |
| 3506 | } else { /* decode response */ |
| 3507 | /* BB Add logic to parse referrals here */ |
| 3508 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
| 3509 | |
| 3510 | if (rc || (pSMBr->ByteCount < 17)) /* BB also check enough total bytes returned */ |
| 3511 | rc = -EIO; /* bad smb */ |
| 3512 | else { |
| 3513 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
| 3514 | __u16 data_count = le16_to_cpu(pSMBr->t2.DataCount); |
| 3515 | |
| 3516 | cFYI(1, |
| 3517 | ("Decoding GetDFSRefer response. BCC: %d Offset %d", |
| 3518 | pSMBr->ByteCount, data_offset)); |
| 3519 | referrals = |
| 3520 | (struct dfs_referral_level_3 *) |
| 3521 | (8 /* sizeof start of data block */ + |
| 3522 | data_offset + |
| 3523 | (char *) &pSMBr->hdr.Protocol); |
| 3524 | cFYI(1,("num_referrals: %d dfs flags: 0x%x ... \nfor referral one refer size: 0x%x srv type: 0x%x refer flags: 0x%x ttl: 0x%x", |
| 3525 | le16_to_cpu(pSMBr->NumberOfReferrals),le16_to_cpu(pSMBr->DFSFlags), le16_to_cpu(referrals->ReferralSize),le16_to_cpu(referrals->ServerType),le16_to_cpu(referrals->ReferralFlags),le16_to_cpu(referrals->TimeToLive))); |
| 3526 | /* BB This field is actually two bytes in from start of |
| 3527 | data block so we could do safety check that DataBlock |
| 3528 | begins at address of pSMBr->NumberOfReferrals */ |
| 3529 | *number_of_UNC_in_array = le16_to_cpu(pSMBr->NumberOfReferrals); |
| 3530 | |
| 3531 | /* BB Fix below so can return more than one referral */ |
| 3532 | if(*number_of_UNC_in_array > 1) |
| 3533 | *number_of_UNC_in_array = 1; |
| 3534 | |
| 3535 | /* get the length of the strings describing refs */ |
| 3536 | name_len = 0; |
| 3537 | for(i=0;i<*number_of_UNC_in_array;i++) { |
| 3538 | /* make sure that DfsPathOffset not past end */ |
| 3539 | __u16 offset = le16_to_cpu(referrals->DfsPathOffset); |
| 3540 | if (offset > data_count) { |
| 3541 | /* if invalid referral, stop here and do |
| 3542 | not try to copy any more */ |
| 3543 | *number_of_UNC_in_array = i; |
| 3544 | break; |
| 3545 | } |
| 3546 | temp = ((char *)referrals) + offset; |
| 3547 | |
| 3548 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 3549 | name_len += UniStrnlen((wchar_t *)temp,data_count); |
| 3550 | } else { |
| 3551 | name_len += strnlen(temp,data_count); |
| 3552 | } |
| 3553 | referrals++; |
| 3554 | /* BB add check that referral pointer does not fall off end PDU */ |
| 3555 | |
| 3556 | } |
| 3557 | /* BB add check for name_len bigger than bcc */ |
| 3558 | *targetUNCs = |
| 3559 | kmalloc(name_len+1+ (*number_of_UNC_in_array),GFP_KERNEL); |
| 3560 | if(*targetUNCs == NULL) { |
| 3561 | rc = -ENOMEM; |
| 3562 | goto GetDFSRefExit; |
| 3563 | } |
| 3564 | /* copy the ref strings */ |
| 3565 | referrals = |
| 3566 | (struct dfs_referral_level_3 *) |
| 3567 | (8 /* sizeof data hdr */ + |
| 3568 | data_offset + |
| 3569 | (char *) &pSMBr->hdr.Protocol); |
| 3570 | |
| 3571 | for(i=0;i<*number_of_UNC_in_array;i++) { |
| 3572 | temp = ((char *)referrals) + le16_to_cpu(referrals->DfsPathOffset); |
| 3573 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 3574 | cifs_strfromUCS_le(*targetUNCs, |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 3575 | (__le16 *) temp, name_len, nls_codepage); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3576 | } else { |
| 3577 | strncpy(*targetUNCs,temp,name_len); |
| 3578 | } |
| 3579 | /* BB update target_uncs pointers */ |
| 3580 | referrals++; |
| 3581 | } |
| 3582 | temp = *targetUNCs; |
| 3583 | temp[name_len] = 0; |
| 3584 | } |
| 3585 | |
| 3586 | } |
| 3587 | GetDFSRefExit: |
| 3588 | if (pSMB) |
| 3589 | cifs_buf_release(pSMB); |
| 3590 | |
| 3591 | if (rc == -EAGAIN) |
| 3592 | goto getDFSRetry; |
| 3593 | |
| 3594 | return rc; |
| 3595 | } |
| 3596 | |
Steve French | 2096243 | 2005-09-21 22:05:57 -0700 | [diff] [blame] | 3597 | /* Query File System Info such as free space to old servers such as Win 9x */ |
| 3598 | int |
| 3599 | SMBOldQFSInfo(const int xid, struct cifsTconInfo *tcon, struct kstatfs *FSData) |
| 3600 | { |
| 3601 | /* level 0x01 SMB_QUERY_FILE_SYSTEM_INFO */ |
| 3602 | TRANSACTION2_QFSI_REQ *pSMB = NULL; |
| 3603 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; |
| 3604 | FILE_SYSTEM_ALLOC_INFO *response_data; |
| 3605 | int rc = 0; |
| 3606 | int bytes_returned = 0; |
| 3607 | __u16 params, byte_count; |
| 3608 | |
| 3609 | cFYI(1, ("OldQFSInfo")); |
| 3610 | oldQFSInfoRetry: |
| 3611 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 3612 | (void **) &pSMBr); |
| 3613 | if (rc) |
| 3614 | return rc; |
| 3615 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 3616 | (void **) &pSMBr); |
| 3617 | if (rc) |
| 3618 | return rc; |
| 3619 | |
| 3620 | params = 2; /* level */ |
| 3621 | pSMB->TotalDataCount = 0; |
| 3622 | pSMB->MaxParameterCount = cpu_to_le16(2); |
| 3623 | pSMB->MaxDataCount = cpu_to_le16(1000); |
| 3624 | pSMB->MaxSetupCount = 0; |
| 3625 | pSMB->Reserved = 0; |
| 3626 | pSMB->Flags = 0; |
| 3627 | pSMB->Timeout = 0; |
| 3628 | pSMB->Reserved2 = 0; |
| 3629 | byte_count = params + 1 /* pad */ ; |
| 3630 | pSMB->TotalParameterCount = cpu_to_le16(params); |
| 3631 | pSMB->ParameterCount = pSMB->TotalParameterCount; |
| 3632 | pSMB->ParameterOffset = cpu_to_le16(offsetof( |
| 3633 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); |
| 3634 | pSMB->DataCount = 0; |
| 3635 | pSMB->DataOffset = 0; |
| 3636 | pSMB->SetupCount = 1; |
| 3637 | pSMB->Reserved3 = 0; |
| 3638 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); |
| 3639 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_ALLOCATION); |
| 3640 | pSMB->hdr.smb_buf_length += byte_count; |
| 3641 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 3642 | |
| 3643 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 3644 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 3645 | if (rc) { |
| 3646 | cFYI(1, ("Send error in QFSInfo = %d", rc)); |
| 3647 | } else { /* decode response */ |
| 3648 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
| 3649 | |
| 3650 | if (rc || (pSMBr->ByteCount < 18)) |
| 3651 | rc = -EIO; /* bad smb */ |
| 3652 | else { |
| 3653 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
| 3654 | cFYI(1,("qfsinf resp BCC: %d Offset %d", |
| 3655 | pSMBr->ByteCount, data_offset)); |
| 3656 | |
| 3657 | response_data = |
| 3658 | (FILE_SYSTEM_ALLOC_INFO *) |
| 3659 | (((char *) &pSMBr->hdr.Protocol) + data_offset); |
| 3660 | FSData->f_bsize = |
| 3661 | le16_to_cpu(response_data->BytesPerSector) * |
| 3662 | le32_to_cpu(response_data-> |
| 3663 | SectorsPerAllocationUnit); |
| 3664 | FSData->f_blocks = |
| 3665 | le32_to_cpu(response_data->TotalAllocationUnits); |
| 3666 | FSData->f_bfree = FSData->f_bavail = |
| 3667 | le32_to_cpu(response_data->FreeAllocationUnits); |
| 3668 | cFYI(1, |
| 3669 | ("Blocks: %lld Free: %lld Block size %ld", |
| 3670 | (unsigned long long)FSData->f_blocks, |
| 3671 | (unsigned long long)FSData->f_bfree, |
| 3672 | FSData->f_bsize)); |
| 3673 | } |
| 3674 | } |
| 3675 | cifs_buf_release(pSMB); |
| 3676 | |
| 3677 | if (rc == -EAGAIN) |
| 3678 | goto oldQFSInfoRetry; |
| 3679 | |
| 3680 | return rc; |
| 3681 | } |
| 3682 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3683 | int |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 3684 | CIFSSMBQFSInfo(const int xid, struct cifsTconInfo *tcon, struct kstatfs *FSData) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3685 | { |
| 3686 | /* level 0x103 SMB_QUERY_FILE_SYSTEM_INFO */ |
| 3687 | TRANSACTION2_QFSI_REQ *pSMB = NULL; |
| 3688 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; |
| 3689 | FILE_SYSTEM_INFO *response_data; |
| 3690 | int rc = 0; |
| 3691 | int bytes_returned = 0; |
| 3692 | __u16 params, byte_count; |
| 3693 | |
| 3694 | cFYI(1, ("In QFSInfo")); |
| 3695 | QFSInfoRetry: |
| 3696 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 3697 | (void **) &pSMBr); |
| 3698 | if (rc) |
| 3699 | return rc; |
| 3700 | |
| 3701 | params = 2; /* level */ |
| 3702 | pSMB->TotalDataCount = 0; |
| 3703 | pSMB->MaxParameterCount = cpu_to_le16(2); |
Steve French | 2096243 | 2005-09-21 22:05:57 -0700 | [diff] [blame] | 3704 | pSMB->MaxDataCount = cpu_to_le16(1000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3705 | pSMB->MaxSetupCount = 0; |
| 3706 | pSMB->Reserved = 0; |
| 3707 | pSMB->Flags = 0; |
| 3708 | pSMB->Timeout = 0; |
| 3709 | pSMB->Reserved2 = 0; |
| 3710 | byte_count = params + 1 /* pad */ ; |
| 3711 | pSMB->TotalParameterCount = cpu_to_le16(params); |
| 3712 | pSMB->ParameterCount = pSMB->TotalParameterCount; |
| 3713 | pSMB->ParameterOffset = cpu_to_le16(offsetof( |
| 3714 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); |
| 3715 | pSMB->DataCount = 0; |
| 3716 | pSMB->DataOffset = 0; |
| 3717 | pSMB->SetupCount = 1; |
| 3718 | pSMB->Reserved3 = 0; |
| 3719 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); |
| 3720 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_SIZE_INFO); |
| 3721 | pSMB->hdr.smb_buf_length += byte_count; |
| 3722 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 3723 | |
| 3724 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 3725 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 3726 | if (rc) { |
Steve French | 2096243 | 2005-09-21 22:05:57 -0700 | [diff] [blame] | 3727 | cFYI(1, ("Send error in QFSInfo = %d", rc)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3728 | } else { /* decode response */ |
| 3729 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
| 3730 | |
Steve French | 2096243 | 2005-09-21 22:05:57 -0700 | [diff] [blame] | 3731 | if (rc || (pSMBr->ByteCount < 24)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3732 | rc = -EIO; /* bad smb */ |
| 3733 | else { |
| 3734 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3735 | |
| 3736 | response_data = |
| 3737 | (FILE_SYSTEM_INFO |
| 3738 | *) (((char *) &pSMBr->hdr.Protocol) + |
| 3739 | data_offset); |
| 3740 | FSData->f_bsize = |
| 3741 | le32_to_cpu(response_data->BytesPerSector) * |
| 3742 | le32_to_cpu(response_data-> |
| 3743 | SectorsPerAllocationUnit); |
| 3744 | FSData->f_blocks = |
| 3745 | le64_to_cpu(response_data->TotalAllocationUnits); |
| 3746 | FSData->f_bfree = FSData->f_bavail = |
| 3747 | le64_to_cpu(response_data->FreeAllocationUnits); |
| 3748 | cFYI(1, |
| 3749 | ("Blocks: %lld Free: %lld Block size %ld", |
| 3750 | (unsigned long long)FSData->f_blocks, |
| 3751 | (unsigned long long)FSData->f_bfree, |
| 3752 | FSData->f_bsize)); |
| 3753 | } |
| 3754 | } |
| 3755 | cifs_buf_release(pSMB); |
| 3756 | |
| 3757 | if (rc == -EAGAIN) |
| 3758 | goto QFSInfoRetry; |
| 3759 | |
| 3760 | return rc; |
| 3761 | } |
| 3762 | |
| 3763 | int |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 3764 | CIFSSMBQFSAttributeInfo(const int xid, struct cifsTconInfo *tcon) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3765 | { |
| 3766 | /* level 0x105 SMB_QUERY_FILE_SYSTEM_INFO */ |
| 3767 | TRANSACTION2_QFSI_REQ *pSMB = NULL; |
| 3768 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; |
| 3769 | FILE_SYSTEM_ATTRIBUTE_INFO *response_data; |
| 3770 | int rc = 0; |
| 3771 | int bytes_returned = 0; |
| 3772 | __u16 params, byte_count; |
| 3773 | |
| 3774 | cFYI(1, ("In QFSAttributeInfo")); |
| 3775 | QFSAttributeRetry: |
| 3776 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 3777 | (void **) &pSMBr); |
| 3778 | if (rc) |
| 3779 | return rc; |
| 3780 | |
| 3781 | params = 2; /* level */ |
| 3782 | pSMB->TotalDataCount = 0; |
| 3783 | pSMB->MaxParameterCount = cpu_to_le16(2); |
| 3784 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find exact max SMB PDU from sess structure BB */ |
| 3785 | pSMB->MaxSetupCount = 0; |
| 3786 | pSMB->Reserved = 0; |
| 3787 | pSMB->Flags = 0; |
| 3788 | pSMB->Timeout = 0; |
| 3789 | pSMB->Reserved2 = 0; |
| 3790 | byte_count = params + 1 /* pad */ ; |
| 3791 | pSMB->TotalParameterCount = cpu_to_le16(params); |
| 3792 | pSMB->ParameterCount = pSMB->TotalParameterCount; |
| 3793 | pSMB->ParameterOffset = cpu_to_le16(offsetof( |
| 3794 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); |
| 3795 | pSMB->DataCount = 0; |
| 3796 | pSMB->DataOffset = 0; |
| 3797 | pSMB->SetupCount = 1; |
| 3798 | pSMB->Reserved3 = 0; |
| 3799 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); |
| 3800 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_ATTRIBUTE_INFO); |
| 3801 | pSMB->hdr.smb_buf_length += byte_count; |
| 3802 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 3803 | |
| 3804 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 3805 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 3806 | if (rc) { |
| 3807 | cERROR(1, ("Send error in QFSAttributeInfo = %d", rc)); |
| 3808 | } else { /* decode response */ |
| 3809 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
| 3810 | |
| 3811 | if (rc || (pSMBr->ByteCount < 13)) { /* BB also check enough bytes returned */ |
| 3812 | rc = -EIO; /* bad smb */ |
| 3813 | } else { |
| 3814 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
| 3815 | response_data = |
| 3816 | (FILE_SYSTEM_ATTRIBUTE_INFO |
| 3817 | *) (((char *) &pSMBr->hdr.Protocol) + |
| 3818 | data_offset); |
| 3819 | memcpy(&tcon->fsAttrInfo, response_data, |
| 3820 | sizeof (FILE_SYSTEM_ATTRIBUTE_INFO)); |
| 3821 | } |
| 3822 | } |
| 3823 | cifs_buf_release(pSMB); |
| 3824 | |
| 3825 | if (rc == -EAGAIN) |
| 3826 | goto QFSAttributeRetry; |
| 3827 | |
| 3828 | return rc; |
| 3829 | } |
| 3830 | |
| 3831 | int |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 3832 | CIFSSMBQFSDeviceInfo(const int xid, struct cifsTconInfo *tcon) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3833 | { |
| 3834 | /* level 0x104 SMB_QUERY_FILE_SYSTEM_INFO */ |
| 3835 | TRANSACTION2_QFSI_REQ *pSMB = NULL; |
| 3836 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; |
| 3837 | FILE_SYSTEM_DEVICE_INFO *response_data; |
| 3838 | int rc = 0; |
| 3839 | int bytes_returned = 0; |
| 3840 | __u16 params, byte_count; |
| 3841 | |
| 3842 | cFYI(1, ("In QFSDeviceInfo")); |
| 3843 | QFSDeviceRetry: |
| 3844 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 3845 | (void **) &pSMBr); |
| 3846 | if (rc) |
| 3847 | return rc; |
| 3848 | |
| 3849 | params = 2; /* level */ |
| 3850 | pSMB->TotalDataCount = 0; |
| 3851 | pSMB->MaxParameterCount = cpu_to_le16(2); |
| 3852 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find exact max SMB PDU from sess structure BB */ |
| 3853 | pSMB->MaxSetupCount = 0; |
| 3854 | pSMB->Reserved = 0; |
| 3855 | pSMB->Flags = 0; |
| 3856 | pSMB->Timeout = 0; |
| 3857 | pSMB->Reserved2 = 0; |
| 3858 | byte_count = params + 1 /* pad */ ; |
| 3859 | pSMB->TotalParameterCount = cpu_to_le16(params); |
| 3860 | pSMB->ParameterCount = pSMB->TotalParameterCount; |
| 3861 | pSMB->ParameterOffset = cpu_to_le16(offsetof( |
| 3862 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); |
| 3863 | |
| 3864 | pSMB->DataCount = 0; |
| 3865 | pSMB->DataOffset = 0; |
| 3866 | pSMB->SetupCount = 1; |
| 3867 | pSMB->Reserved3 = 0; |
| 3868 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); |
| 3869 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_DEVICE_INFO); |
| 3870 | pSMB->hdr.smb_buf_length += byte_count; |
| 3871 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 3872 | |
| 3873 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 3874 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 3875 | if (rc) { |
| 3876 | cFYI(1, ("Send error in QFSDeviceInfo = %d", rc)); |
| 3877 | } else { /* decode response */ |
| 3878 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
| 3879 | |
| 3880 | if (rc || (pSMBr->ByteCount < sizeof (FILE_SYSTEM_DEVICE_INFO))) |
| 3881 | rc = -EIO; /* bad smb */ |
| 3882 | else { |
| 3883 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
| 3884 | response_data = |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 3885 | (FILE_SYSTEM_DEVICE_INFO *) |
| 3886 | (((char *) &pSMBr->hdr.Protocol) + |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3887 | data_offset); |
| 3888 | memcpy(&tcon->fsDevInfo, response_data, |
| 3889 | sizeof (FILE_SYSTEM_DEVICE_INFO)); |
| 3890 | } |
| 3891 | } |
| 3892 | cifs_buf_release(pSMB); |
| 3893 | |
| 3894 | if (rc == -EAGAIN) |
| 3895 | goto QFSDeviceRetry; |
| 3896 | |
| 3897 | return rc; |
| 3898 | } |
| 3899 | |
| 3900 | int |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 3901 | CIFSSMBQFSUnixInfo(const int xid, struct cifsTconInfo *tcon) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3902 | { |
| 3903 | /* level 0x200 SMB_QUERY_CIFS_UNIX_INFO */ |
| 3904 | TRANSACTION2_QFSI_REQ *pSMB = NULL; |
| 3905 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; |
| 3906 | FILE_SYSTEM_UNIX_INFO *response_data; |
| 3907 | int rc = 0; |
| 3908 | int bytes_returned = 0; |
| 3909 | __u16 params, byte_count; |
| 3910 | |
| 3911 | cFYI(1, ("In QFSUnixInfo")); |
| 3912 | QFSUnixRetry: |
| 3913 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 3914 | (void **) &pSMBr); |
| 3915 | if (rc) |
| 3916 | return rc; |
| 3917 | |
| 3918 | params = 2; /* level */ |
| 3919 | pSMB->TotalDataCount = 0; |
| 3920 | pSMB->DataCount = 0; |
| 3921 | pSMB->DataOffset = 0; |
| 3922 | pSMB->MaxParameterCount = cpu_to_le16(2); |
| 3923 | pSMB->MaxDataCount = cpu_to_le16(100); /* BB find exact max SMB PDU from sess structure BB */ |
| 3924 | pSMB->MaxSetupCount = 0; |
| 3925 | pSMB->Reserved = 0; |
| 3926 | pSMB->Flags = 0; |
| 3927 | pSMB->Timeout = 0; |
| 3928 | pSMB->Reserved2 = 0; |
| 3929 | byte_count = params + 1 /* pad */ ; |
| 3930 | pSMB->ParameterCount = cpu_to_le16(params); |
| 3931 | pSMB->TotalParameterCount = pSMB->ParameterCount; |
| 3932 | pSMB->ParameterOffset = cpu_to_le16(offsetof(struct |
| 3933 | smb_com_transaction2_qfsi_req, InformationLevel) - 4); |
| 3934 | pSMB->SetupCount = 1; |
| 3935 | pSMB->Reserved3 = 0; |
| 3936 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); |
| 3937 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_CIFS_UNIX_INFO); |
| 3938 | pSMB->hdr.smb_buf_length += byte_count; |
| 3939 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 3940 | |
| 3941 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 3942 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 3943 | if (rc) { |
| 3944 | cERROR(1, ("Send error in QFSUnixInfo = %d", rc)); |
| 3945 | } else { /* decode response */ |
| 3946 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
| 3947 | |
| 3948 | if (rc || (pSMBr->ByteCount < 13)) { |
| 3949 | rc = -EIO; /* bad smb */ |
| 3950 | } else { |
| 3951 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
| 3952 | response_data = |
| 3953 | (FILE_SYSTEM_UNIX_INFO |
| 3954 | *) (((char *) &pSMBr->hdr.Protocol) + |
| 3955 | data_offset); |
| 3956 | memcpy(&tcon->fsUnixInfo, response_data, |
| 3957 | sizeof (FILE_SYSTEM_UNIX_INFO)); |
| 3958 | } |
| 3959 | } |
| 3960 | cifs_buf_release(pSMB); |
| 3961 | |
| 3962 | if (rc == -EAGAIN) |
| 3963 | goto QFSUnixRetry; |
| 3964 | |
| 3965 | |
| 3966 | return rc; |
| 3967 | } |
| 3968 | |
Jeremy Allison | ac67055 | 2005-06-22 17:26:35 -0700 | [diff] [blame] | 3969 | int |
Steve French | 45abc6e | 2005-06-23 13:42:03 -0500 | [diff] [blame] | 3970 | CIFSSMBSetFSUnixInfo(const int xid, struct cifsTconInfo *tcon, __u64 cap) |
Jeremy Allison | ac67055 | 2005-06-22 17:26:35 -0700 | [diff] [blame] | 3971 | { |
| 3972 | /* level 0x200 SMB_SET_CIFS_UNIX_INFO */ |
| 3973 | TRANSACTION2_SETFSI_REQ *pSMB = NULL; |
| 3974 | TRANSACTION2_SETFSI_RSP *pSMBr = NULL; |
| 3975 | int rc = 0; |
| 3976 | int bytes_returned = 0; |
| 3977 | __u16 params, param_offset, offset, byte_count; |
| 3978 | |
| 3979 | cFYI(1, ("In SETFSUnixInfo")); |
| 3980 | SETFSUnixRetry: |
Steve French | f26282c | 2006-03-01 09:17:37 +0000 | [diff] [blame] | 3981 | /* BB switch to small buf init to save memory */ |
Jeremy Allison | ac67055 | 2005-06-22 17:26:35 -0700 | [diff] [blame] | 3982 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 3983 | (void **) &pSMBr); |
| 3984 | if (rc) |
| 3985 | return rc; |
| 3986 | |
| 3987 | params = 4; /* 2 bytes zero followed by info level. */ |
| 3988 | pSMB->MaxSetupCount = 0; |
| 3989 | pSMB->Reserved = 0; |
| 3990 | pSMB->Flags = 0; |
| 3991 | pSMB->Timeout = 0; |
| 3992 | pSMB->Reserved2 = 0; |
| 3993 | param_offset = offsetof(struct smb_com_transaction2_setfsi_req, FileNum) - 4; |
| 3994 | offset = param_offset + params; |
| 3995 | |
| 3996 | pSMB->MaxParameterCount = cpu_to_le16(4); |
| 3997 | pSMB->MaxDataCount = cpu_to_le16(100); /* BB find exact max SMB PDU from sess structure BB */ |
| 3998 | pSMB->SetupCount = 1; |
| 3999 | pSMB->Reserved3 = 0; |
| 4000 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FS_INFORMATION); |
| 4001 | byte_count = 1 /* pad */ + params + 12; |
| 4002 | |
| 4003 | pSMB->DataCount = cpu_to_le16(12); |
| 4004 | pSMB->ParameterCount = cpu_to_le16(params); |
| 4005 | pSMB->TotalDataCount = pSMB->DataCount; |
| 4006 | pSMB->TotalParameterCount = pSMB->ParameterCount; |
| 4007 | pSMB->ParameterOffset = cpu_to_le16(param_offset); |
| 4008 | pSMB->DataOffset = cpu_to_le16(offset); |
| 4009 | |
| 4010 | /* Params. */ |
| 4011 | pSMB->FileNum = 0; |
| 4012 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_CIFS_UNIX_INFO); |
| 4013 | |
| 4014 | /* Data. */ |
| 4015 | pSMB->ClientUnixMajor = cpu_to_le16(CIFS_UNIX_MAJOR_VERSION); |
| 4016 | pSMB->ClientUnixMinor = cpu_to_le16(CIFS_UNIX_MINOR_VERSION); |
| 4017 | pSMB->ClientUnixCap = cpu_to_le64(cap); |
| 4018 | |
| 4019 | pSMB->hdr.smb_buf_length += byte_count; |
| 4020 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 4021 | |
| 4022 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 4023 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 4024 | if (rc) { |
| 4025 | cERROR(1, ("Send error in SETFSUnixInfo = %d", rc)); |
| 4026 | } else { /* decode response */ |
| 4027 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
| 4028 | if (rc) { |
| 4029 | rc = -EIO; /* bad smb */ |
| 4030 | } |
| 4031 | } |
| 4032 | cifs_buf_release(pSMB); |
| 4033 | |
| 4034 | if (rc == -EAGAIN) |
| 4035 | goto SETFSUnixRetry; |
| 4036 | |
| 4037 | return rc; |
| 4038 | } |
| 4039 | |
| 4040 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4041 | |
| 4042 | int |
| 4043 | CIFSSMBQFSPosixInfo(const int xid, struct cifsTconInfo *tcon, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 4044 | struct kstatfs *FSData) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4045 | { |
| 4046 | /* level 0x201 SMB_QUERY_CIFS_POSIX_INFO */ |
| 4047 | TRANSACTION2_QFSI_REQ *pSMB = NULL; |
| 4048 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; |
| 4049 | FILE_SYSTEM_POSIX_INFO *response_data; |
| 4050 | int rc = 0; |
| 4051 | int bytes_returned = 0; |
| 4052 | __u16 params, byte_count; |
| 4053 | |
| 4054 | cFYI(1, ("In QFSPosixInfo")); |
| 4055 | QFSPosixRetry: |
| 4056 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 4057 | (void **) &pSMBr); |
| 4058 | if (rc) |
| 4059 | return rc; |
| 4060 | |
| 4061 | params = 2; /* level */ |
| 4062 | pSMB->TotalDataCount = 0; |
| 4063 | pSMB->DataCount = 0; |
| 4064 | pSMB->DataOffset = 0; |
| 4065 | pSMB->MaxParameterCount = cpu_to_le16(2); |
| 4066 | pSMB->MaxDataCount = cpu_to_le16(100); /* BB find exact max SMB PDU from sess structure BB */ |
| 4067 | pSMB->MaxSetupCount = 0; |
| 4068 | pSMB->Reserved = 0; |
| 4069 | pSMB->Flags = 0; |
| 4070 | pSMB->Timeout = 0; |
| 4071 | pSMB->Reserved2 = 0; |
| 4072 | byte_count = params + 1 /* pad */ ; |
| 4073 | pSMB->ParameterCount = cpu_to_le16(params); |
| 4074 | pSMB->TotalParameterCount = pSMB->ParameterCount; |
| 4075 | pSMB->ParameterOffset = cpu_to_le16(offsetof(struct |
| 4076 | smb_com_transaction2_qfsi_req, InformationLevel) - 4); |
| 4077 | pSMB->SetupCount = 1; |
| 4078 | pSMB->Reserved3 = 0; |
| 4079 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); |
| 4080 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_POSIX_FS_INFO); |
| 4081 | pSMB->hdr.smb_buf_length += byte_count; |
| 4082 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 4083 | |
| 4084 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 4085 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 4086 | if (rc) { |
| 4087 | cFYI(1, ("Send error in QFSUnixInfo = %d", rc)); |
| 4088 | } else { /* decode response */ |
| 4089 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
| 4090 | |
| 4091 | if (rc || (pSMBr->ByteCount < 13)) { |
| 4092 | rc = -EIO; /* bad smb */ |
| 4093 | } else { |
| 4094 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
| 4095 | response_data = |
| 4096 | (FILE_SYSTEM_POSIX_INFO |
| 4097 | *) (((char *) &pSMBr->hdr.Protocol) + |
| 4098 | data_offset); |
| 4099 | FSData->f_bsize = |
| 4100 | le32_to_cpu(response_data->BlockSize); |
| 4101 | FSData->f_blocks = |
| 4102 | le64_to_cpu(response_data->TotalBlocks); |
| 4103 | FSData->f_bfree = |
| 4104 | le64_to_cpu(response_data->BlocksAvail); |
Steve French | 70ca734 | 2005-09-22 16:32:06 -0700 | [diff] [blame] | 4105 | if(response_data->UserBlocksAvail == cpu_to_le64(-1)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4106 | FSData->f_bavail = FSData->f_bfree; |
| 4107 | } else { |
| 4108 | FSData->f_bavail = |
| 4109 | le64_to_cpu(response_data->UserBlocksAvail); |
| 4110 | } |
Steve French | 70ca734 | 2005-09-22 16:32:06 -0700 | [diff] [blame] | 4111 | if(response_data->TotalFileNodes != cpu_to_le64(-1)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4112 | FSData->f_files = |
| 4113 | le64_to_cpu(response_data->TotalFileNodes); |
Steve French | 70ca734 | 2005-09-22 16:32:06 -0700 | [diff] [blame] | 4114 | if(response_data->FreeFileNodes != cpu_to_le64(-1)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4115 | FSData->f_ffree = |
| 4116 | le64_to_cpu(response_data->FreeFileNodes); |
| 4117 | } |
| 4118 | } |
| 4119 | cifs_buf_release(pSMB); |
| 4120 | |
| 4121 | if (rc == -EAGAIN) |
| 4122 | goto QFSPosixRetry; |
| 4123 | |
| 4124 | return rc; |
| 4125 | } |
| 4126 | |
| 4127 | |
| 4128 | /* We can not use write of zero bytes trick to |
| 4129 | set file size due to need for large file support. Also note that |
| 4130 | this SetPathInfo is preferred to SetFileInfo based method in next |
| 4131 | routine which is only needed to work around a sharing violation bug |
| 4132 | in Samba which this routine can run into */ |
| 4133 | |
| 4134 | int |
| 4135 | CIFSSMBSetEOF(const int xid, struct cifsTconInfo *tcon, const char *fileName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 4136 | __u64 size, int SetAllocation, |
| 4137 | const struct nls_table *nls_codepage, int remap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4138 | { |
| 4139 | struct smb_com_transaction2_spi_req *pSMB = NULL; |
| 4140 | struct smb_com_transaction2_spi_rsp *pSMBr = NULL; |
| 4141 | struct file_end_of_file_info *parm_data; |
| 4142 | int name_len; |
| 4143 | int rc = 0; |
| 4144 | int bytes_returned = 0; |
| 4145 | __u16 params, byte_count, data_count, param_offset, offset; |
| 4146 | |
| 4147 | cFYI(1, ("In SetEOF")); |
| 4148 | SetEOFRetry: |
| 4149 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 4150 | (void **) &pSMBr); |
| 4151 | if (rc) |
| 4152 | return rc; |
| 4153 | |
| 4154 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 4155 | name_len = |
Steve French | b1a4569 | 2005-05-17 16:07:23 -0500 | [diff] [blame] | 4156 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 4157 | PATH_MAX, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4158 | name_len++; /* trailing null */ |
| 4159 | name_len *= 2; |
Steve French | 3e87d80 | 2005-09-18 20:49:21 -0700 | [diff] [blame] | 4160 | } else { /* BB improve the check for buffer overruns BB */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4161 | name_len = strnlen(fileName, PATH_MAX); |
| 4162 | name_len++; /* trailing null */ |
| 4163 | strncpy(pSMB->FileName, fileName, name_len); |
| 4164 | } |
| 4165 | params = 6 + name_len; |
| 4166 | data_count = sizeof (struct file_end_of_file_info); |
| 4167 | pSMB->MaxParameterCount = cpu_to_le16(2); |
Steve French | 3e87d80 | 2005-09-18 20:49:21 -0700 | [diff] [blame] | 4168 | pSMB->MaxDataCount = cpu_to_le16(4100); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4169 | pSMB->MaxSetupCount = 0; |
| 4170 | pSMB->Reserved = 0; |
| 4171 | pSMB->Flags = 0; |
| 4172 | pSMB->Timeout = 0; |
| 4173 | pSMB->Reserved2 = 0; |
| 4174 | param_offset = offsetof(struct smb_com_transaction2_spi_req, |
| 4175 | InformationLevel) - 4; |
| 4176 | offset = param_offset + params; |
| 4177 | if(SetAllocation) { |
| 4178 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
| 4179 | pSMB->InformationLevel = |
| 4180 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO2); |
| 4181 | else |
| 4182 | pSMB->InformationLevel = |
| 4183 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO); |
| 4184 | } else /* Set File Size */ { |
| 4185 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
| 4186 | pSMB->InformationLevel = |
| 4187 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO2); |
| 4188 | else |
| 4189 | pSMB->InformationLevel = |
| 4190 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO); |
| 4191 | } |
| 4192 | |
| 4193 | parm_data = |
| 4194 | (struct file_end_of_file_info *) (((char *) &pSMB->hdr.Protocol) + |
| 4195 | offset); |
| 4196 | pSMB->ParameterOffset = cpu_to_le16(param_offset); |
| 4197 | pSMB->DataOffset = cpu_to_le16(offset); |
| 4198 | pSMB->SetupCount = 1; |
| 4199 | pSMB->Reserved3 = 0; |
| 4200 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); |
| 4201 | byte_count = 3 /* pad */ + params + data_count; |
| 4202 | pSMB->DataCount = cpu_to_le16(data_count); |
| 4203 | pSMB->TotalDataCount = pSMB->DataCount; |
| 4204 | pSMB->ParameterCount = cpu_to_le16(params); |
| 4205 | pSMB->TotalParameterCount = pSMB->ParameterCount; |
| 4206 | pSMB->Reserved4 = 0; |
| 4207 | pSMB->hdr.smb_buf_length += byte_count; |
| 4208 | parm_data->FileSize = cpu_to_le64(size); |
| 4209 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 4210 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 4211 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 4212 | if (rc) { |
| 4213 | cFYI(1, ("SetPathInfo (file size) returned %d", rc)); |
| 4214 | } |
| 4215 | |
| 4216 | cifs_buf_release(pSMB); |
| 4217 | |
| 4218 | if (rc == -EAGAIN) |
| 4219 | goto SetEOFRetry; |
| 4220 | |
| 4221 | return rc; |
| 4222 | } |
| 4223 | |
| 4224 | int |
| 4225 | CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon, __u64 size, |
| 4226 | __u16 fid, __u32 pid_of_opener, int SetAllocation) |
| 4227 | { |
| 4228 | struct smb_com_transaction2_sfi_req *pSMB = NULL; |
| 4229 | struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; |
| 4230 | char *data_offset; |
| 4231 | struct file_end_of_file_info *parm_data; |
| 4232 | int rc = 0; |
| 4233 | int bytes_returned = 0; |
| 4234 | __u16 params, param_offset, offset, byte_count, count; |
| 4235 | |
| 4236 | cFYI(1, ("SetFileSize (via SetFileInfo) %lld", |
| 4237 | (long long)size)); |
Steve French | cd63499 | 2005-04-28 22:41:10 -0700 | [diff] [blame] | 4238 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
| 4239 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4240 | if (rc) |
| 4241 | return rc; |
| 4242 | |
Steve French | cd63499 | 2005-04-28 22:41:10 -0700 | [diff] [blame] | 4243 | pSMBr = (struct smb_com_transaction2_sfi_rsp *)pSMB; |
| 4244 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4245 | pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener); |
| 4246 | pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16)); |
| 4247 | |
| 4248 | params = 6; |
| 4249 | pSMB->MaxSetupCount = 0; |
| 4250 | pSMB->Reserved = 0; |
| 4251 | pSMB->Flags = 0; |
| 4252 | pSMB->Timeout = 0; |
| 4253 | pSMB->Reserved2 = 0; |
| 4254 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; |
| 4255 | offset = param_offset + params; |
| 4256 | |
| 4257 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; |
| 4258 | |
| 4259 | count = sizeof(struct file_end_of_file_info); |
| 4260 | pSMB->MaxParameterCount = cpu_to_le16(2); |
| 4261 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB PDU from sess */ |
| 4262 | pSMB->SetupCount = 1; |
| 4263 | pSMB->Reserved3 = 0; |
| 4264 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); |
| 4265 | byte_count = 3 /* pad */ + params + count; |
| 4266 | pSMB->DataCount = cpu_to_le16(count); |
| 4267 | pSMB->ParameterCount = cpu_to_le16(params); |
| 4268 | pSMB->TotalDataCount = pSMB->DataCount; |
| 4269 | pSMB->TotalParameterCount = pSMB->ParameterCount; |
| 4270 | pSMB->ParameterOffset = cpu_to_le16(param_offset); |
| 4271 | parm_data = |
| 4272 | (struct file_end_of_file_info *) (((char *) &pSMB->hdr.Protocol) + |
| 4273 | offset); |
| 4274 | pSMB->DataOffset = cpu_to_le16(offset); |
| 4275 | parm_data->FileSize = cpu_to_le64(size); |
| 4276 | pSMB->Fid = fid; |
| 4277 | if(SetAllocation) { |
| 4278 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
| 4279 | pSMB->InformationLevel = |
| 4280 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO2); |
| 4281 | else |
| 4282 | pSMB->InformationLevel = |
| 4283 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO); |
| 4284 | } else /* Set File Size */ { |
| 4285 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
| 4286 | pSMB->InformationLevel = |
| 4287 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO2); |
| 4288 | else |
| 4289 | pSMB->InformationLevel = |
| 4290 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO); |
| 4291 | } |
| 4292 | pSMB->Reserved4 = 0; |
| 4293 | pSMB->hdr.smb_buf_length += byte_count; |
| 4294 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 4295 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 4296 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 4297 | if (rc) { |
| 4298 | cFYI(1, |
| 4299 | ("Send error in SetFileInfo (SetFileSize) = %d", |
| 4300 | rc)); |
| 4301 | } |
| 4302 | |
| 4303 | if (pSMB) |
Steve French | cd63499 | 2005-04-28 22:41:10 -0700 | [diff] [blame] | 4304 | cifs_small_buf_release(pSMB); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4305 | |
| 4306 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
| 4307 | since file handle passed in no longer valid */ |
| 4308 | |
| 4309 | return rc; |
| 4310 | } |
| 4311 | |
| 4312 | /* Some legacy servers such as NT4 require that the file times be set on |
| 4313 | an open handle, rather than by pathname - this is awkward due to |
| 4314 | potential access conflicts on the open, but it is unavoidable for these |
| 4315 | old servers since the only other choice is to go from 100 nanosecond DCE |
| 4316 | time and resort to the original setpathinfo level which takes the ancient |
| 4317 | DOS time format with 2 second granularity */ |
| 4318 | int |
| 4319 | CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon, const FILE_BASIC_INFO * data, |
| 4320 | __u16 fid) |
| 4321 | { |
| 4322 | struct smb_com_transaction2_sfi_req *pSMB = NULL; |
| 4323 | struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; |
| 4324 | char *data_offset; |
| 4325 | int rc = 0; |
| 4326 | int bytes_returned = 0; |
| 4327 | __u16 params, param_offset, offset, byte_count, count; |
| 4328 | |
| 4329 | cFYI(1, ("Set Times (via SetFileInfo)")); |
Steve French | cd63499 | 2005-04-28 22:41:10 -0700 | [diff] [blame] | 4330 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
| 4331 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4332 | if (rc) |
| 4333 | return rc; |
| 4334 | |
Steve French | cd63499 | 2005-04-28 22:41:10 -0700 | [diff] [blame] | 4335 | pSMBr = (struct smb_com_transaction2_sfi_rsp *)pSMB; |
| 4336 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4337 | /* At this point there is no need to override the current pid |
| 4338 | with the pid of the opener, but that could change if we someday |
| 4339 | use an existing handle (rather than opening one on the fly) */ |
| 4340 | /* pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener); |
| 4341 | pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16));*/ |
| 4342 | |
| 4343 | params = 6; |
| 4344 | pSMB->MaxSetupCount = 0; |
| 4345 | pSMB->Reserved = 0; |
| 4346 | pSMB->Flags = 0; |
| 4347 | pSMB->Timeout = 0; |
| 4348 | pSMB->Reserved2 = 0; |
| 4349 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; |
| 4350 | offset = param_offset + params; |
| 4351 | |
| 4352 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; |
| 4353 | |
| 4354 | count = sizeof (FILE_BASIC_INFO); |
| 4355 | pSMB->MaxParameterCount = cpu_to_le16(2); |
| 4356 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB PDU from sess */ |
| 4357 | pSMB->SetupCount = 1; |
| 4358 | pSMB->Reserved3 = 0; |
| 4359 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); |
| 4360 | byte_count = 3 /* pad */ + params + count; |
| 4361 | pSMB->DataCount = cpu_to_le16(count); |
| 4362 | pSMB->ParameterCount = cpu_to_le16(params); |
| 4363 | pSMB->TotalDataCount = pSMB->DataCount; |
| 4364 | pSMB->TotalParameterCount = pSMB->ParameterCount; |
| 4365 | pSMB->ParameterOffset = cpu_to_le16(param_offset); |
| 4366 | pSMB->DataOffset = cpu_to_le16(offset); |
| 4367 | pSMB->Fid = fid; |
| 4368 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
| 4369 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO2); |
| 4370 | else |
| 4371 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO); |
| 4372 | pSMB->Reserved4 = 0; |
| 4373 | pSMB->hdr.smb_buf_length += byte_count; |
| 4374 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 4375 | memcpy(data_offset,data,sizeof(FILE_BASIC_INFO)); |
| 4376 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 4377 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 4378 | if (rc) { |
| 4379 | cFYI(1,("Send error in Set Time (SetFileInfo) = %d",rc)); |
| 4380 | } |
| 4381 | |
Steve French | cd63499 | 2005-04-28 22:41:10 -0700 | [diff] [blame] | 4382 | cifs_small_buf_release(pSMB); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4383 | |
| 4384 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
| 4385 | since file handle passed in no longer valid */ |
| 4386 | |
| 4387 | return rc; |
| 4388 | } |
| 4389 | |
| 4390 | |
| 4391 | int |
| 4392 | CIFSSMBSetTimes(const int xid, struct cifsTconInfo *tcon, const char *fileName, |
| 4393 | const FILE_BASIC_INFO * data, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 4394 | const struct nls_table *nls_codepage, int remap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4395 | { |
| 4396 | TRANSACTION2_SPI_REQ *pSMB = NULL; |
| 4397 | TRANSACTION2_SPI_RSP *pSMBr = NULL; |
| 4398 | int name_len; |
| 4399 | int rc = 0; |
| 4400 | int bytes_returned = 0; |
| 4401 | char *data_offset; |
| 4402 | __u16 params, param_offset, offset, byte_count, count; |
| 4403 | |
| 4404 | cFYI(1, ("In SetTimes")); |
| 4405 | |
| 4406 | SetTimesRetry: |
| 4407 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 4408 | (void **) &pSMBr); |
| 4409 | if (rc) |
| 4410 | return rc; |
| 4411 | |
| 4412 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 4413 | name_len = |
Steve French | b1a4569 | 2005-05-17 16:07:23 -0500 | [diff] [blame] | 4414 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 4415 | PATH_MAX, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4416 | name_len++; /* trailing null */ |
| 4417 | name_len *= 2; |
| 4418 | } else { /* BB improve the check for buffer overruns BB */ |
| 4419 | name_len = strnlen(fileName, PATH_MAX); |
| 4420 | name_len++; /* trailing null */ |
| 4421 | strncpy(pSMB->FileName, fileName, name_len); |
| 4422 | } |
| 4423 | |
| 4424 | params = 6 + name_len; |
| 4425 | count = sizeof (FILE_BASIC_INFO); |
| 4426 | pSMB->MaxParameterCount = cpu_to_le16(2); |
| 4427 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find exact max SMB PDU from sess structure BB */ |
| 4428 | pSMB->MaxSetupCount = 0; |
| 4429 | pSMB->Reserved = 0; |
| 4430 | pSMB->Flags = 0; |
| 4431 | pSMB->Timeout = 0; |
| 4432 | pSMB->Reserved2 = 0; |
| 4433 | param_offset = offsetof(struct smb_com_transaction2_spi_req, |
| 4434 | InformationLevel) - 4; |
| 4435 | offset = param_offset + params; |
| 4436 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; |
| 4437 | pSMB->ParameterOffset = cpu_to_le16(param_offset); |
| 4438 | pSMB->DataOffset = cpu_to_le16(offset); |
| 4439 | pSMB->SetupCount = 1; |
| 4440 | pSMB->Reserved3 = 0; |
| 4441 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); |
| 4442 | byte_count = 3 /* pad */ + params + count; |
| 4443 | |
| 4444 | pSMB->DataCount = cpu_to_le16(count); |
| 4445 | pSMB->ParameterCount = cpu_to_le16(params); |
| 4446 | pSMB->TotalDataCount = pSMB->DataCount; |
| 4447 | pSMB->TotalParameterCount = pSMB->ParameterCount; |
| 4448 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
| 4449 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO2); |
| 4450 | else |
| 4451 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO); |
| 4452 | pSMB->Reserved4 = 0; |
| 4453 | pSMB->hdr.smb_buf_length += byte_count; |
| 4454 | memcpy(data_offset, data, sizeof (FILE_BASIC_INFO)); |
| 4455 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 4456 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 4457 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 4458 | if (rc) { |
| 4459 | cFYI(1, ("SetPathInfo (times) returned %d", rc)); |
| 4460 | } |
| 4461 | |
| 4462 | cifs_buf_release(pSMB); |
| 4463 | |
| 4464 | if (rc == -EAGAIN) |
| 4465 | goto SetTimesRetry; |
| 4466 | |
| 4467 | return rc; |
| 4468 | } |
| 4469 | |
| 4470 | /* Can not be used to set time stamps yet (due to old DOS time format) */ |
| 4471 | /* Can be used to set attributes */ |
| 4472 | #if 0 /* Possibly not needed - since it turns out that strangely NT4 has a bug |
| 4473 | handling it anyway and NT4 was what we thought it would be needed for |
| 4474 | Do not delete it until we prove whether needed for Win9x though */ |
| 4475 | int |
| 4476 | CIFSSMBSetAttrLegacy(int xid, struct cifsTconInfo *tcon, char *fileName, |
| 4477 | __u16 dos_attrs, const struct nls_table *nls_codepage) |
| 4478 | { |
| 4479 | SETATTR_REQ *pSMB = NULL; |
| 4480 | SETATTR_RSP *pSMBr = NULL; |
| 4481 | int rc = 0; |
| 4482 | int bytes_returned; |
| 4483 | int name_len; |
| 4484 | |
| 4485 | cFYI(1, ("In SetAttrLegacy")); |
| 4486 | |
| 4487 | SetAttrLgcyRetry: |
| 4488 | rc = smb_init(SMB_COM_SETATTR, 8, tcon, (void **) &pSMB, |
| 4489 | (void **) &pSMBr); |
| 4490 | if (rc) |
| 4491 | return rc; |
| 4492 | |
| 4493 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 4494 | name_len = |
Steve French | b1a4569 | 2005-05-17 16:07:23 -0500 | [diff] [blame] | 4495 | ConvertToUCS((__le16 *) pSMB->fileName, fileName, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4496 | PATH_MAX, nls_codepage); |
| 4497 | name_len++; /* trailing null */ |
| 4498 | name_len *= 2; |
| 4499 | } else { /* BB improve the check for buffer overruns BB */ |
| 4500 | name_len = strnlen(fileName, PATH_MAX); |
| 4501 | name_len++; /* trailing null */ |
| 4502 | strncpy(pSMB->fileName, fileName, name_len); |
| 4503 | } |
| 4504 | pSMB->attr = cpu_to_le16(dos_attrs); |
| 4505 | pSMB->BufferFormat = 0x04; |
| 4506 | pSMB->hdr.smb_buf_length += name_len + 1; |
| 4507 | pSMB->ByteCount = cpu_to_le16(name_len + 1); |
| 4508 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 4509 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 4510 | if (rc) { |
| 4511 | cFYI(1, ("Error in LegacySetAttr = %d", rc)); |
| 4512 | } |
| 4513 | |
| 4514 | cifs_buf_release(pSMB); |
| 4515 | |
| 4516 | if (rc == -EAGAIN) |
| 4517 | goto SetAttrLgcyRetry; |
| 4518 | |
| 4519 | return rc; |
| 4520 | } |
| 4521 | #endif /* temporarily unneeded SetAttr legacy function */ |
| 4522 | |
| 4523 | int |
| 4524 | CIFSSMBUnixSetPerms(const int xid, struct cifsTconInfo *tcon, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 4525 | char *fileName, __u64 mode, __u64 uid, __u64 gid, |
| 4526 | dev_t device, const struct nls_table *nls_codepage, |
| 4527 | int remap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4528 | { |
| 4529 | TRANSACTION2_SPI_REQ *pSMB = NULL; |
| 4530 | TRANSACTION2_SPI_RSP *pSMBr = NULL; |
| 4531 | int name_len; |
| 4532 | int rc = 0; |
| 4533 | int bytes_returned = 0; |
| 4534 | FILE_UNIX_BASIC_INFO *data_offset; |
| 4535 | __u16 params, param_offset, offset, count, byte_count; |
| 4536 | |
| 4537 | cFYI(1, ("In SetUID/GID/Mode")); |
| 4538 | setPermsRetry: |
| 4539 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 4540 | (void **) &pSMBr); |
| 4541 | if (rc) |
| 4542 | return rc; |
| 4543 | |
| 4544 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 4545 | name_len = |
Steve French | b1a4569 | 2005-05-17 16:07:23 -0500 | [diff] [blame] | 4546 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 4547 | PATH_MAX, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4548 | name_len++; /* trailing null */ |
| 4549 | name_len *= 2; |
Steve French | 3e87d80 | 2005-09-18 20:49:21 -0700 | [diff] [blame] | 4550 | } else { /* BB improve the check for buffer overruns BB */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4551 | name_len = strnlen(fileName, PATH_MAX); |
| 4552 | name_len++; /* trailing null */ |
| 4553 | strncpy(pSMB->FileName, fileName, name_len); |
| 4554 | } |
| 4555 | |
| 4556 | params = 6 + name_len; |
| 4557 | count = sizeof (FILE_UNIX_BASIC_INFO); |
| 4558 | pSMB->MaxParameterCount = cpu_to_le16(2); |
| 4559 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find exact max SMB PDU from sess structure BB */ |
| 4560 | pSMB->MaxSetupCount = 0; |
| 4561 | pSMB->Reserved = 0; |
| 4562 | pSMB->Flags = 0; |
| 4563 | pSMB->Timeout = 0; |
| 4564 | pSMB->Reserved2 = 0; |
| 4565 | param_offset = offsetof(struct smb_com_transaction2_spi_req, |
| 4566 | InformationLevel) - 4; |
| 4567 | offset = param_offset + params; |
| 4568 | data_offset = |
| 4569 | (FILE_UNIX_BASIC_INFO *) ((char *) &pSMB->hdr.Protocol + |
| 4570 | offset); |
| 4571 | memset(data_offset, 0, count); |
| 4572 | pSMB->DataOffset = cpu_to_le16(offset); |
| 4573 | pSMB->ParameterOffset = cpu_to_le16(param_offset); |
| 4574 | pSMB->SetupCount = 1; |
| 4575 | pSMB->Reserved3 = 0; |
| 4576 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); |
| 4577 | byte_count = 3 /* pad */ + params + count; |
| 4578 | pSMB->ParameterCount = cpu_to_le16(params); |
| 4579 | pSMB->DataCount = cpu_to_le16(count); |
| 4580 | pSMB->TotalParameterCount = pSMB->ParameterCount; |
| 4581 | pSMB->TotalDataCount = pSMB->DataCount; |
| 4582 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_BASIC); |
| 4583 | pSMB->Reserved4 = 0; |
| 4584 | pSMB->hdr.smb_buf_length += byte_count; |
| 4585 | data_offset->Uid = cpu_to_le64(uid); |
| 4586 | data_offset->Gid = cpu_to_le64(gid); |
| 4587 | /* better to leave device as zero when it is */ |
| 4588 | data_offset->DevMajor = cpu_to_le64(MAJOR(device)); |
| 4589 | data_offset->DevMinor = cpu_to_le64(MINOR(device)); |
| 4590 | data_offset->Permissions = cpu_to_le64(mode); |
| 4591 | |
| 4592 | if(S_ISREG(mode)) |
| 4593 | data_offset->Type = cpu_to_le32(UNIX_FILE); |
| 4594 | else if(S_ISDIR(mode)) |
| 4595 | data_offset->Type = cpu_to_le32(UNIX_DIR); |
| 4596 | else if(S_ISLNK(mode)) |
| 4597 | data_offset->Type = cpu_to_le32(UNIX_SYMLINK); |
| 4598 | else if(S_ISCHR(mode)) |
| 4599 | data_offset->Type = cpu_to_le32(UNIX_CHARDEV); |
| 4600 | else if(S_ISBLK(mode)) |
| 4601 | data_offset->Type = cpu_to_le32(UNIX_BLOCKDEV); |
| 4602 | else if(S_ISFIFO(mode)) |
| 4603 | data_offset->Type = cpu_to_le32(UNIX_FIFO); |
| 4604 | else if(S_ISSOCK(mode)) |
| 4605 | data_offset->Type = cpu_to_le32(UNIX_SOCKET); |
| 4606 | |
| 4607 | |
| 4608 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 4609 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 4610 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 4611 | if (rc) { |
| 4612 | cFYI(1, ("SetPathInfo (perms) returned %d", rc)); |
| 4613 | } |
| 4614 | |
| 4615 | if (pSMB) |
| 4616 | cifs_buf_release(pSMB); |
| 4617 | if (rc == -EAGAIN) |
| 4618 | goto setPermsRetry; |
| 4619 | return rc; |
| 4620 | } |
| 4621 | |
| 4622 | int CIFSSMBNotify(const int xid, struct cifsTconInfo *tcon, |
Steve French | 167a251 | 2005-08-24 20:03:11 -0700 | [diff] [blame] | 4623 | const int notify_subdirs, const __u16 netfid, |
| 4624 | __u32 filter, struct file * pfile, int multishot, |
| 4625 | const struct nls_table *nls_codepage) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4626 | { |
| 4627 | int rc = 0; |
| 4628 | struct smb_com_transaction_change_notify_req * pSMB = NULL; |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 4629 | struct smb_com_ntransaction_change_notify_rsp * pSMBr = NULL; |
Steve French | abb15b8 | 2005-08-24 18:51:02 -0700 | [diff] [blame] | 4630 | struct dir_notify_req *dnotify_req; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4631 | int bytes_returned; |
| 4632 | |
| 4633 | cFYI(1, ("In CIFSSMBNotify for file handle %d",(int)netfid)); |
| 4634 | rc = smb_init(SMB_COM_NT_TRANSACT, 23, tcon, (void **) &pSMB, |
| 4635 | (void **) &pSMBr); |
| 4636 | if (rc) |
| 4637 | return rc; |
| 4638 | |
| 4639 | pSMB->TotalParameterCount = 0 ; |
| 4640 | pSMB->TotalDataCount = 0; |
| 4641 | pSMB->MaxParameterCount = cpu_to_le32(2); |
| 4642 | /* BB find exact data count max from sess structure BB */ |
| 4643 | pSMB->MaxDataCount = 0; /* same in little endian or be */ |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 4644 | /* BB VERIFY verify which is correct for above BB */ |
| 4645 | pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf - |
| 4646 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); |
| 4647 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4648 | pSMB->MaxSetupCount = 4; |
| 4649 | pSMB->Reserved = 0; |
| 4650 | pSMB->ParameterOffset = 0; |
| 4651 | pSMB->DataCount = 0; |
| 4652 | pSMB->DataOffset = 0; |
| 4653 | pSMB->SetupCount = 4; /* single byte does not need le conversion */ |
| 4654 | pSMB->SubCommand = cpu_to_le16(NT_TRANSACT_NOTIFY_CHANGE); |
| 4655 | pSMB->ParameterCount = pSMB->TotalParameterCount; |
| 4656 | if(notify_subdirs) |
| 4657 | pSMB->WatchTree = 1; /* one byte - no le conversion needed */ |
| 4658 | pSMB->Reserved2 = 0; |
| 4659 | pSMB->CompletionFilter = cpu_to_le32(filter); |
| 4660 | pSMB->Fid = netfid; /* file handle always le */ |
| 4661 | pSMB->ByteCount = 0; |
| 4662 | |
| 4663 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 4664 | (struct smb_hdr *) pSMBr, &bytes_returned, -1); |
| 4665 | if (rc) { |
| 4666 | cFYI(1, ("Error in Notify = %d", rc)); |
Steve French | ff5dbd9 | 2005-08-24 17:10:36 -0700 | [diff] [blame] | 4667 | } else { |
| 4668 | /* Add file to outstanding requests */ |
Steve French | 47c786e | 2005-10-11 20:03:18 -0700 | [diff] [blame] | 4669 | /* BB change to kmem cache alloc */ |
Steve French | ff5dbd9 | 2005-08-24 17:10:36 -0700 | [diff] [blame] | 4670 | dnotify_req = (struct dir_notify_req *) kmalloc( |
Steve French | 47c786e | 2005-10-11 20:03:18 -0700 | [diff] [blame] | 4671 | sizeof(struct dir_notify_req), |
| 4672 | GFP_KERNEL); |
| 4673 | if(dnotify_req) { |
| 4674 | dnotify_req->Pid = pSMB->hdr.Pid; |
| 4675 | dnotify_req->PidHigh = pSMB->hdr.PidHigh; |
| 4676 | dnotify_req->Mid = pSMB->hdr.Mid; |
| 4677 | dnotify_req->Tid = pSMB->hdr.Tid; |
| 4678 | dnotify_req->Uid = pSMB->hdr.Uid; |
| 4679 | dnotify_req->netfid = netfid; |
| 4680 | dnotify_req->pfile = pfile; |
| 4681 | dnotify_req->filter = filter; |
| 4682 | dnotify_req->multishot = multishot; |
| 4683 | spin_lock(&GlobalMid_Lock); |
| 4684 | list_add_tail(&dnotify_req->lhead, |
| 4685 | &GlobalDnotifyReqList); |
| 4686 | spin_unlock(&GlobalMid_Lock); |
| 4687 | } else |
| 4688 | rc = -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4689 | } |
| 4690 | cifs_buf_release(pSMB); |
| 4691 | return rc; |
| 4692 | } |
| 4693 | #ifdef CONFIG_CIFS_XATTR |
| 4694 | ssize_t |
| 4695 | CIFSSMBQAllEAs(const int xid, struct cifsTconInfo *tcon, |
| 4696 | const unsigned char *searchName, |
| 4697 | char * EAData, size_t buf_size, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 4698 | const struct nls_table *nls_codepage, int remap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4699 | { |
| 4700 | /* BB assumes one setup word */ |
| 4701 | TRANSACTION2_QPI_REQ *pSMB = NULL; |
| 4702 | TRANSACTION2_QPI_RSP *pSMBr = NULL; |
| 4703 | int rc = 0; |
| 4704 | int bytes_returned; |
| 4705 | int name_len; |
| 4706 | struct fea * temp_fea; |
| 4707 | char * temp_ptr; |
| 4708 | __u16 params, byte_count; |
| 4709 | |
| 4710 | cFYI(1, ("In Query All EAs path %s", searchName)); |
| 4711 | QAllEAsRetry: |
| 4712 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 4713 | (void **) &pSMBr); |
| 4714 | if (rc) |
| 4715 | return rc; |
| 4716 | |
| 4717 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 4718 | name_len = |
Steve French | b1a4569 | 2005-05-17 16:07:23 -0500 | [diff] [blame] | 4719 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 4720 | PATH_MAX, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4721 | name_len++; /* trailing null */ |
| 4722 | name_len *= 2; |
| 4723 | } else { /* BB improve the check for buffer overruns BB */ |
| 4724 | name_len = strnlen(searchName, PATH_MAX); |
| 4725 | name_len++; /* trailing null */ |
| 4726 | strncpy(pSMB->FileName, searchName, name_len); |
| 4727 | } |
| 4728 | |
| 4729 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */ ; |
| 4730 | pSMB->TotalDataCount = 0; |
| 4731 | pSMB->MaxParameterCount = cpu_to_le16(2); |
| 4732 | pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ |
| 4733 | pSMB->MaxSetupCount = 0; |
| 4734 | pSMB->Reserved = 0; |
| 4735 | pSMB->Flags = 0; |
| 4736 | pSMB->Timeout = 0; |
| 4737 | pSMB->Reserved2 = 0; |
| 4738 | pSMB->ParameterOffset = cpu_to_le16(offsetof( |
| 4739 | struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); |
| 4740 | pSMB->DataCount = 0; |
| 4741 | pSMB->DataOffset = 0; |
| 4742 | pSMB->SetupCount = 1; |
| 4743 | pSMB->Reserved3 = 0; |
| 4744 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); |
| 4745 | byte_count = params + 1 /* pad */ ; |
| 4746 | pSMB->TotalParameterCount = cpu_to_le16(params); |
| 4747 | pSMB->ParameterCount = pSMB->TotalParameterCount; |
| 4748 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_QUERY_ALL_EAS); |
| 4749 | pSMB->Reserved4 = 0; |
| 4750 | pSMB->hdr.smb_buf_length += byte_count; |
| 4751 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 4752 | |
| 4753 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 4754 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 4755 | if (rc) { |
| 4756 | cFYI(1, ("Send error in QueryAllEAs = %d", rc)); |
| 4757 | } else { /* decode response */ |
| 4758 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
| 4759 | |
| 4760 | /* BB also check enough total bytes returned */ |
| 4761 | /* BB we need to improve the validity checking |
| 4762 | of these trans2 responses */ |
| 4763 | if (rc || (pSMBr->ByteCount < 4)) |
| 4764 | rc = -EIO; /* bad smb */ |
| 4765 | /* else if (pFindData){ |
| 4766 | memcpy((char *) pFindData, |
| 4767 | (char *) &pSMBr->hdr.Protocol + |
| 4768 | data_offset, kl); |
| 4769 | }*/ else { |
| 4770 | /* check that length of list is not more than bcc */ |
| 4771 | /* check that each entry does not go beyond length |
| 4772 | of list */ |
| 4773 | /* check that each element of each entry does not |
| 4774 | go beyond end of list */ |
| 4775 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
| 4776 | struct fealist * ea_response_data; |
| 4777 | rc = 0; |
| 4778 | /* validate_trans2_offsets() */ |
| 4779 | /* BB to check if(start of smb + data_offset > &bcc+ bcc)*/ |
| 4780 | ea_response_data = (struct fealist *) |
| 4781 | (((char *) &pSMBr->hdr.Protocol) + |
| 4782 | data_offset); |
| 4783 | name_len = le32_to_cpu(ea_response_data->list_len); |
| 4784 | cFYI(1,("ea length %d", name_len)); |
| 4785 | if(name_len <= 8) { |
| 4786 | /* returned EA size zeroed at top of function */ |
| 4787 | cFYI(1,("empty EA list returned from server")); |
| 4788 | } else { |
| 4789 | /* account for ea list len */ |
| 4790 | name_len -= 4; |
| 4791 | temp_fea = ea_response_data->list; |
| 4792 | temp_ptr = (char *)temp_fea; |
| 4793 | while(name_len > 0) { |
| 4794 | __u16 value_len; |
| 4795 | name_len -= 4; |
| 4796 | temp_ptr += 4; |
| 4797 | rc += temp_fea->name_len; |
| 4798 | /* account for prefix user. and trailing null */ |
| 4799 | rc = rc + 5 + 1; |
| 4800 | if(rc<(int)buf_size) { |
| 4801 | memcpy(EAData,"user.",5); |
| 4802 | EAData+=5; |
| 4803 | memcpy(EAData,temp_ptr,temp_fea->name_len); |
| 4804 | EAData+=temp_fea->name_len; |
| 4805 | /* null terminate name */ |
| 4806 | *EAData = 0; |
| 4807 | EAData = EAData + 1; |
| 4808 | } else if(buf_size == 0) { |
| 4809 | /* skip copy - calc size only */ |
| 4810 | } else { |
| 4811 | /* stop before overrun buffer */ |
| 4812 | rc = -ERANGE; |
| 4813 | break; |
| 4814 | } |
| 4815 | name_len -= temp_fea->name_len; |
| 4816 | temp_ptr += temp_fea->name_len; |
| 4817 | /* account for trailing null */ |
| 4818 | name_len--; |
| 4819 | temp_ptr++; |
| 4820 | value_len = le16_to_cpu(temp_fea->value_len); |
| 4821 | name_len -= value_len; |
| 4822 | temp_ptr += value_len; |
| 4823 | /* BB check that temp_ptr is still within smb BB*/ |
| 4824 | /* no trailing null to account for in value len */ |
| 4825 | /* go on to next EA */ |
| 4826 | temp_fea = (struct fea *)temp_ptr; |
| 4827 | } |
| 4828 | } |
| 4829 | } |
| 4830 | } |
| 4831 | if (pSMB) |
| 4832 | cifs_buf_release(pSMB); |
| 4833 | if (rc == -EAGAIN) |
| 4834 | goto QAllEAsRetry; |
| 4835 | |
| 4836 | return (ssize_t)rc; |
| 4837 | } |
| 4838 | |
| 4839 | ssize_t CIFSSMBQueryEA(const int xid,struct cifsTconInfo * tcon, |
| 4840 | const unsigned char * searchName,const unsigned char * ea_name, |
| 4841 | unsigned char * ea_value, size_t buf_size, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 4842 | const struct nls_table *nls_codepage, int remap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4843 | { |
| 4844 | TRANSACTION2_QPI_REQ *pSMB = NULL; |
| 4845 | TRANSACTION2_QPI_RSP *pSMBr = NULL; |
| 4846 | int rc = 0; |
| 4847 | int bytes_returned; |
| 4848 | int name_len; |
| 4849 | struct fea * temp_fea; |
| 4850 | char * temp_ptr; |
| 4851 | __u16 params, byte_count; |
| 4852 | |
| 4853 | cFYI(1, ("In Query EA path %s", searchName)); |
| 4854 | QEARetry: |
| 4855 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 4856 | (void **) &pSMBr); |
| 4857 | if (rc) |
| 4858 | return rc; |
| 4859 | |
| 4860 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 4861 | name_len = |
Steve French | b1a4569 | 2005-05-17 16:07:23 -0500 | [diff] [blame] | 4862 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 4863 | PATH_MAX, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4864 | name_len++; /* trailing null */ |
| 4865 | name_len *= 2; |
| 4866 | } else { /* BB improve the check for buffer overruns BB */ |
| 4867 | name_len = strnlen(searchName, PATH_MAX); |
| 4868 | name_len++; /* trailing null */ |
| 4869 | strncpy(pSMB->FileName, searchName, name_len); |
| 4870 | } |
| 4871 | |
| 4872 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */ ; |
| 4873 | pSMB->TotalDataCount = 0; |
| 4874 | pSMB->MaxParameterCount = cpu_to_le16(2); |
| 4875 | pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ |
| 4876 | pSMB->MaxSetupCount = 0; |
| 4877 | pSMB->Reserved = 0; |
| 4878 | pSMB->Flags = 0; |
| 4879 | pSMB->Timeout = 0; |
| 4880 | pSMB->Reserved2 = 0; |
| 4881 | pSMB->ParameterOffset = cpu_to_le16(offsetof( |
| 4882 | struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); |
| 4883 | pSMB->DataCount = 0; |
| 4884 | pSMB->DataOffset = 0; |
| 4885 | pSMB->SetupCount = 1; |
| 4886 | pSMB->Reserved3 = 0; |
| 4887 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); |
| 4888 | byte_count = params + 1 /* pad */ ; |
| 4889 | pSMB->TotalParameterCount = cpu_to_le16(params); |
| 4890 | pSMB->ParameterCount = pSMB->TotalParameterCount; |
| 4891 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_QUERY_ALL_EAS); |
| 4892 | pSMB->Reserved4 = 0; |
| 4893 | pSMB->hdr.smb_buf_length += byte_count; |
| 4894 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 4895 | |
| 4896 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 4897 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 4898 | if (rc) { |
| 4899 | cFYI(1, ("Send error in Query EA = %d", rc)); |
| 4900 | } else { /* decode response */ |
| 4901 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
| 4902 | |
| 4903 | /* BB also check enough total bytes returned */ |
| 4904 | /* BB we need to improve the validity checking |
| 4905 | of these trans2 responses */ |
| 4906 | if (rc || (pSMBr->ByteCount < 4)) |
| 4907 | rc = -EIO; /* bad smb */ |
| 4908 | /* else if (pFindData){ |
| 4909 | memcpy((char *) pFindData, |
| 4910 | (char *) &pSMBr->hdr.Protocol + |
| 4911 | data_offset, kl); |
| 4912 | }*/ else { |
| 4913 | /* check that length of list is not more than bcc */ |
| 4914 | /* check that each entry does not go beyond length |
| 4915 | of list */ |
| 4916 | /* check that each element of each entry does not |
| 4917 | go beyond end of list */ |
| 4918 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
| 4919 | struct fealist * ea_response_data; |
| 4920 | rc = -ENODATA; |
| 4921 | /* validate_trans2_offsets() */ |
| 4922 | /* BB to check if(start of smb + data_offset > &bcc+ bcc)*/ |
| 4923 | ea_response_data = (struct fealist *) |
| 4924 | (((char *) &pSMBr->hdr.Protocol) + |
| 4925 | data_offset); |
| 4926 | name_len = le32_to_cpu(ea_response_data->list_len); |
| 4927 | cFYI(1,("ea length %d", name_len)); |
| 4928 | if(name_len <= 8) { |
| 4929 | /* returned EA size zeroed at top of function */ |
| 4930 | cFYI(1,("empty EA list returned from server")); |
| 4931 | } else { |
| 4932 | /* account for ea list len */ |
| 4933 | name_len -= 4; |
| 4934 | temp_fea = ea_response_data->list; |
| 4935 | temp_ptr = (char *)temp_fea; |
| 4936 | /* loop through checking if we have a matching |
| 4937 | name and then return the associated value */ |
| 4938 | while(name_len > 0) { |
| 4939 | __u16 value_len; |
| 4940 | name_len -= 4; |
| 4941 | temp_ptr += 4; |
| 4942 | value_len = le16_to_cpu(temp_fea->value_len); |
| 4943 | /* BB validate that value_len falls within SMB, |
| 4944 | even though maximum for name_len is 255 */ |
| 4945 | if(memcmp(temp_fea->name,ea_name, |
| 4946 | temp_fea->name_len) == 0) { |
| 4947 | /* found a match */ |
| 4948 | rc = value_len; |
| 4949 | /* account for prefix user. and trailing null */ |
| 4950 | if(rc<=(int)buf_size) { |
| 4951 | memcpy(ea_value, |
| 4952 | temp_fea->name+temp_fea->name_len+1, |
| 4953 | rc); |
| 4954 | /* ea values, unlike ea names, |
| 4955 | are not null terminated */ |
| 4956 | } else if(buf_size == 0) { |
| 4957 | /* skip copy - calc size only */ |
| 4958 | } else { |
| 4959 | /* stop before overrun buffer */ |
| 4960 | rc = -ERANGE; |
| 4961 | } |
| 4962 | break; |
| 4963 | } |
| 4964 | name_len -= temp_fea->name_len; |
| 4965 | temp_ptr += temp_fea->name_len; |
| 4966 | /* account for trailing null */ |
| 4967 | name_len--; |
| 4968 | temp_ptr++; |
| 4969 | name_len -= value_len; |
| 4970 | temp_ptr += value_len; |
| 4971 | /* no trailing null to account for in value len */ |
| 4972 | /* go on to next EA */ |
| 4973 | temp_fea = (struct fea *)temp_ptr; |
| 4974 | } |
| 4975 | } |
| 4976 | } |
| 4977 | } |
| 4978 | if (pSMB) |
| 4979 | cifs_buf_release(pSMB); |
| 4980 | if (rc == -EAGAIN) |
| 4981 | goto QEARetry; |
| 4982 | |
| 4983 | return (ssize_t)rc; |
| 4984 | } |
| 4985 | |
| 4986 | int |
| 4987 | CIFSSMBSetEA(const int xid, struct cifsTconInfo *tcon, const char *fileName, |
| 4988 | const char * ea_name, const void * ea_value, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 4989 | const __u16 ea_value_len, const struct nls_table *nls_codepage, |
| 4990 | int remap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4991 | { |
| 4992 | struct smb_com_transaction2_spi_req *pSMB = NULL; |
| 4993 | struct smb_com_transaction2_spi_rsp *pSMBr = NULL; |
| 4994 | struct fealist *parm_data; |
| 4995 | int name_len; |
| 4996 | int rc = 0; |
| 4997 | int bytes_returned = 0; |
| 4998 | __u16 params, param_offset, byte_count, offset, count; |
| 4999 | |
| 5000 | cFYI(1, ("In SetEA")); |
| 5001 | SetEARetry: |
| 5002 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
| 5003 | (void **) &pSMBr); |
| 5004 | if (rc) |
| 5005 | return rc; |
| 5006 | |
| 5007 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
| 5008 | name_len = |
Steve French | b1a4569 | 2005-05-17 16:07:23 -0500 | [diff] [blame] | 5009 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 5010 | PATH_MAX, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5011 | name_len++; /* trailing null */ |
| 5012 | name_len *= 2; |
| 5013 | } else { /* BB improve the check for buffer overruns BB */ |
| 5014 | name_len = strnlen(fileName, PATH_MAX); |
| 5015 | name_len++; /* trailing null */ |
| 5016 | strncpy(pSMB->FileName, fileName, name_len); |
| 5017 | } |
| 5018 | |
| 5019 | params = 6 + name_len; |
| 5020 | |
| 5021 | /* done calculating parms using name_len of file name, |
| 5022 | now use name_len to calculate length of ea name |
| 5023 | we are going to create in the inode xattrs */ |
| 5024 | if(ea_name == NULL) |
| 5025 | name_len = 0; |
| 5026 | else |
| 5027 | name_len = strnlen(ea_name,255); |
| 5028 | |
| 5029 | count = sizeof(*parm_data) + ea_value_len + name_len + 1; |
| 5030 | pSMB->MaxParameterCount = cpu_to_le16(2); |
| 5031 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB size from sess */ |
| 5032 | pSMB->MaxSetupCount = 0; |
| 5033 | pSMB->Reserved = 0; |
| 5034 | pSMB->Flags = 0; |
| 5035 | pSMB->Timeout = 0; |
| 5036 | pSMB->Reserved2 = 0; |
| 5037 | param_offset = offsetof(struct smb_com_transaction2_spi_req, |
| 5038 | InformationLevel) - 4; |
| 5039 | offset = param_offset + params; |
| 5040 | pSMB->InformationLevel = |
| 5041 | cpu_to_le16(SMB_SET_FILE_EA); |
| 5042 | |
| 5043 | parm_data = |
| 5044 | (struct fealist *) (((char *) &pSMB->hdr.Protocol) + |
| 5045 | offset); |
| 5046 | pSMB->ParameterOffset = cpu_to_le16(param_offset); |
| 5047 | pSMB->DataOffset = cpu_to_le16(offset); |
| 5048 | pSMB->SetupCount = 1; |
| 5049 | pSMB->Reserved3 = 0; |
| 5050 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); |
| 5051 | byte_count = 3 /* pad */ + params + count; |
| 5052 | pSMB->DataCount = cpu_to_le16(count); |
| 5053 | parm_data->list_len = cpu_to_le32(count); |
| 5054 | parm_data->list[0].EA_flags = 0; |
| 5055 | /* we checked above that name len is less than 255 */ |
Alexey Dobriyan | 53b3531 | 2006-03-24 03:16:13 -0800 | [diff] [blame] | 5056 | parm_data->list[0].name_len = (__u8)name_len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5057 | /* EA names are always ASCII */ |
| 5058 | if(ea_name) |
| 5059 | strncpy(parm_data->list[0].name,ea_name,name_len); |
| 5060 | parm_data->list[0].name[name_len] = 0; |
| 5061 | parm_data->list[0].value_len = cpu_to_le16(ea_value_len); |
| 5062 | /* caller ensures that ea_value_len is less than 64K but |
| 5063 | we need to ensure that it fits within the smb */ |
| 5064 | |
| 5065 | /*BB add length check that it would fit in negotiated SMB buffer size BB */ |
| 5066 | /* if(ea_value_len > buffer_size - 512 (enough for header)) */ |
| 5067 | if(ea_value_len) |
| 5068 | memcpy(parm_data->list[0].name+name_len+1,ea_value,ea_value_len); |
| 5069 | |
| 5070 | pSMB->TotalDataCount = pSMB->DataCount; |
| 5071 | pSMB->ParameterCount = cpu_to_le16(params); |
| 5072 | pSMB->TotalParameterCount = pSMB->ParameterCount; |
| 5073 | pSMB->Reserved4 = 0; |
| 5074 | pSMB->hdr.smb_buf_length += byte_count; |
| 5075 | pSMB->ByteCount = cpu_to_le16(byte_count); |
| 5076 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
| 5077 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
| 5078 | if (rc) { |
| 5079 | cFYI(1, ("SetPathInfo (EA) returned %d", rc)); |
| 5080 | } |
| 5081 | |
| 5082 | cifs_buf_release(pSMB); |
| 5083 | |
| 5084 | if (rc == -EAGAIN) |
| 5085 | goto SetEARetry; |
| 5086 | |
| 5087 | return rc; |
| 5088 | } |
| 5089 | |
| 5090 | #endif |