Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * fs/cifs/cifssmb.c | |
3 | * | |
d185cda7 | 4 | * Copyright (C) International Business Machines Corp., 2002,2009 |
1da177e4 LT |
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 */ | |
2dd29d31 SF |
27 | /* treated slightly differently for reconnection purposes since we never */ |
28 | /* want to reuse a stale file handle and only the caller knows the file info */ | |
1da177e4 LT |
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" | |
d0d66c44 | 37 | #include "cifsacl.h" |
1da177e4 LT |
38 | #include "cifsproto.h" |
39 | #include "cifs_unicode.h" | |
40 | #include "cifs_debug.h" | |
41 | ||
42 | #ifdef CONFIG_CIFS_POSIX | |
43 | static struct { | |
44 | int index; | |
45 | char *name; | |
46 | } protocols[] = { | |
3979877e SF |
47 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
48 | {LANMAN_PROT, "\2LM1.2X002"}, | |
9ac00b7d | 49 | {LANMAN2_PROT, "\2LANMAN2.1"}, |
3979877e | 50 | #endif /* weak password hashing for legacy clients */ |
50c2f753 | 51 | {CIFS_PROT, "\2NT LM 0.12"}, |
3979877e | 52 | {POSIX_PROT, "\2POSIX 2"}, |
1da177e4 LT |
53 | {BAD_PROT, "\2"} |
54 | }; | |
55 | #else | |
56 | static struct { | |
57 | int index; | |
58 | char *name; | |
59 | } protocols[] = { | |
3979877e SF |
60 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
61 | {LANMAN_PROT, "\2LM1.2X002"}, | |
18f75ca0 | 62 | {LANMAN2_PROT, "\2LANMAN2.1"}, |
3979877e | 63 | #endif /* weak password hashing for legacy clients */ |
790fe579 | 64 | {CIFS_PROT, "\2NT LM 0.12"}, |
1da177e4 LT |
65 | {BAD_PROT, "\2"} |
66 | }; | |
67 | #endif | |
68 | ||
3979877e SF |
69 | /* define the number of elements in the cifs dialect array */ |
70 | #ifdef CONFIG_CIFS_POSIX | |
71 | #ifdef CONFIG_CIFS_WEAK_PW_HASH | |
9ac00b7d | 72 | #define CIFS_NUM_PROT 4 |
3979877e SF |
73 | #else |
74 | #define CIFS_NUM_PROT 2 | |
75 | #endif /* CIFS_WEAK_PW_HASH */ | |
76 | #else /* not posix */ | |
77 | #ifdef CONFIG_CIFS_WEAK_PW_HASH | |
9ac00b7d | 78 | #define CIFS_NUM_PROT 3 |
3979877e SF |
79 | #else |
80 | #define CIFS_NUM_PROT 1 | |
81 | #endif /* CONFIG_CIFS_WEAK_PW_HASH */ | |
82 | #endif /* CIFS_POSIX */ | |
83 | ||
1da177e4 LT |
84 | /* Mark as invalid, all open files on tree connections since they |
85 | were closed when session to server was lost */ | |
790fe579 | 86 | static void mark_open_files_invalid(struct cifsTconInfo *pTcon) |
1da177e4 LT |
87 | { |
88 | struct cifsFileInfo *open_file = NULL; | |
790fe579 SF |
89 | struct list_head *tmp; |
90 | struct list_head *tmp1; | |
1da177e4 LT |
91 | |
92 | /* list all files open on tree connection and mark them invalid */ | |
93 | write_lock(&GlobalSMBSeslock); | |
94 | list_for_each_safe(tmp, tmp1, &pTcon->openFileList) { | |
790fe579 | 95 | open_file = list_entry(tmp, struct cifsFileInfo, tlist); |
ad8b15f0 | 96 | open_file->invalidHandle = true; |
1da177e4 LT |
97 | } |
98 | write_unlock(&GlobalSMBSeslock); | |
09d1db5c SF |
99 | /* BB Add call to invalidate_inodes(sb) for all superblocks mounted |
100 | to this tcon */ | |
1da177e4 LT |
101 | } |
102 | ||
ad7a2926 SF |
103 | /* Allocate and return pointer to an SMB request buffer, and set basic |
104 | SMB information in the SMB header. If the return code is zero, this | |
105 | function must have filled in request_buf pointer */ | |
1da177e4 LT |
106 | static int |
107 | small_smb_init(int smb_command, int wct, struct cifsTconInfo *tcon, | |
ad7a2926 | 108 | void **request_buf) |
1da177e4 LT |
109 | { |
110 | int rc = 0; | |
111 | ||
112 | /* SMBs NegProt, SessSetup, uLogoff do not have tcon yet so | |
113 | check for tcp and smb session status done differently | |
114 | for those three - in the calling routine */ | |
790fe579 SF |
115 | if (tcon) { |
116 | if (tcon->tidStatus == CifsExiting) { | |
6ab16d24 SF |
117 | /* only tree disconnect, open, and write, |
118 | (and ulogoff which does not have tcon) | |
119 | are allowed as we start force umount */ | |
790fe579 | 120 | if ((smb_command != SMB_COM_WRITE_ANDX) && |
50c2f753 | 121 | (smb_command != SMB_COM_OPEN_ANDX) && |
6ab16d24 | 122 | (smb_command != SMB_COM_TREE_DISCONNECT)) { |
790fe579 | 123 | cFYI(1, ("can not send cmd %d while umounting", |
6ab16d24 SF |
124 | smb_command)); |
125 | return -ENODEV; | |
126 | } | |
127 | } | |
790fe579 | 128 | if ((tcon->ses) && (tcon->ses->status != CifsExiting) && |
50c2f753 | 129 | (tcon->ses->server)) { |
1da177e4 | 130 | struct nls_table *nls_codepage; |
50c2f753 | 131 | /* Give Demultiplex thread up to 10 seconds to |
09d1db5c SF |
132 | reconnect, should be greater than cifs socket |
133 | timeout which is 7 seconds */ | |
c18c842b | 134 | while (tcon->ses->server->tcpStatus == |
63135e08 | 135 | CifsNeedReconnect) { |
1da177e4 | 136 | wait_event_interruptible_timeout(tcon->ses->server->response_q, |
c18c842b | 137 | (tcon->ses->server->tcpStatus == |
63135e08 SF |
138 | CifsGood), 10 * HZ); |
139 | if (tcon->ses->server->tcpStatus == | |
140 | CifsNeedReconnect) { | |
1da177e4 | 141 | /* on "soft" mounts we wait once */ |
4b18f2a9 | 142 | if (!tcon->retry || |
1da177e4 | 143 | (tcon->ses->status == CifsExiting)) { |
50c2f753 SF |
144 | cFYI(1, ("gave up waiting on " |
145 | "reconnect in smb_init")); | |
1da177e4 | 146 | return -EHOSTDOWN; |
09d1db5c SF |
147 | } /* else "hard" mount - keep retrying |
148 | until process is killed or server | |
149 | comes back on-line */ | |
1da177e4 LT |
150 | } else /* TCP session is reestablished now */ |
151 | break; | |
1da177e4 | 152 | } |
50c2f753 | 153 | |
1da177e4 LT |
154 | nls_codepage = load_nls_default(); |
155 | /* need to prevent multiple threads trying to | |
156 | simultaneously reconnect the same SMB session */ | |
157 | down(&tcon->ses->sesSem); | |
3b795210 | 158 | if (tcon->ses->need_reconnect) |
50c2f753 | 159 | rc = cifs_setup_session(0, tcon->ses, |
09d1db5c | 160 | nls_codepage); |
3b795210 | 161 | if (!rc && (tcon->need_reconnect)) { |
1da177e4 | 162 | mark_open_files_invalid(tcon); |
50c2f753 | 163 | rc = CIFSTCon(0, tcon->ses, tcon->treeName, |
8af18971 | 164 | tcon, nls_codepage); |
1da177e4 | 165 | up(&tcon->ses->sesSem); |
3e84469d SF |
166 | /* BB FIXME add code to check if wsize needs |
167 | update due to negotiated smb buffer size | |
168 | shrinking */ | |
35028d71 | 169 | if (rc == 0) { |
1da177e4 | 170 | atomic_inc(&tconInfoReconnectCount); |
35028d71 SF |
171 | /* tell server Unix caps we support */ |
172 | if (tcon->ses->capabilities & CAP_UNIX) | |
173 | reset_cifs_unix_caps( | |
174 | 0 /* no xid */, | |
175 | tcon, | |
176 | NULL /* we do not know sb */, | |
177 | NULL /* no vol info */); | |
178 | } | |
1da177e4 LT |
179 | |
180 | cFYI(1, ("reconnect tcon rc = %d", rc)); | |
50c2f753 SF |
181 | /* Removed call to reopen open files here. |
182 | It is safer (and faster) to reopen files | |
09d1db5c | 183 | one at a time as needed in read and write */ |
1da177e4 | 184 | |
50c2f753 | 185 | /* Check if handle based operation so we |
09d1db5c SF |
186 | know whether we can continue or not without |
187 | returning to caller to reset file handle */ | |
50c2f753 | 188 | switch (smb_command) { |
1da177e4 LT |
189 | case SMB_COM_READ_ANDX: |
190 | case SMB_COM_WRITE_ANDX: | |
191 | case SMB_COM_CLOSE: | |
192 | case SMB_COM_FIND_CLOSE2: | |
193 | case SMB_COM_LOCKING_ANDX: { | |
194 | unload_nls(nls_codepage); | |
195 | return -EAGAIN; | |
196 | } | |
197 | } | |
198 | } else { | |
199 | up(&tcon->ses->sesSem); | |
200 | } | |
201 | unload_nls(nls_codepage); | |
202 | ||
203 | } else { | |
204 | return -EIO; | |
205 | } | |
206 | } | |
790fe579 | 207 | if (rc) |
1da177e4 LT |
208 | return rc; |
209 | ||
210 | *request_buf = cifs_small_buf_get(); | |
211 | if (*request_buf == NULL) { | |
212 | /* BB should we add a retry in here if not a writepage? */ | |
213 | return -ENOMEM; | |
214 | } | |
215 | ||
63135e08 | 216 | header_assemble((struct smb_hdr *) *request_buf, smb_command, |
c18c842b | 217 | tcon, wct); |
1da177e4 | 218 | |
790fe579 SF |
219 | if (tcon != NULL) |
220 | cifs_stats_inc(&tcon->num_smbs_sent); | |
a4544347 | 221 | |
1da177e4 | 222 | return rc; |
5815449d SF |
223 | } |
224 | ||
12b3b8ff | 225 | int |
50c2f753 | 226 | small_smb_init_no_tc(const int smb_command, const int wct, |
5815449d | 227 | struct cifsSesInfo *ses, void **request_buf) |
12b3b8ff SF |
228 | { |
229 | int rc; | |
50c2f753 | 230 | struct smb_hdr *buffer; |
12b3b8ff | 231 | |
5815449d | 232 | rc = small_smb_init(smb_command, wct, NULL, request_buf); |
790fe579 | 233 | if (rc) |
12b3b8ff SF |
234 | return rc; |
235 | ||
04fdabe1 | 236 | buffer = (struct smb_hdr *)*request_buf; |
12b3b8ff SF |
237 | buffer->Mid = GetNextMid(ses->server); |
238 | if (ses->capabilities & CAP_UNICODE) | |
239 | buffer->Flags2 |= SMBFLG2_UNICODE; | |
04fdabe1 | 240 | if (ses->capabilities & CAP_STATUS32) |
12b3b8ff SF |
241 | buffer->Flags2 |= SMBFLG2_ERR_STATUS; |
242 | ||
243 | /* uid, tid can stay at zero as set in header assemble */ | |
244 | ||
50c2f753 | 245 | /* BB add support for turning on the signing when |
12b3b8ff SF |
246 | this function is used after 1st of session setup requests */ |
247 | ||
248 | return rc; | |
249 | } | |
1da177e4 LT |
250 | |
251 | /* If the return code is zero, this function must fill in request_buf pointer */ | |
252 | static int | |
253 | smb_init(int smb_command, int wct, struct cifsTconInfo *tcon, | |
254 | void **request_buf /* returned */ , | |
255 | void **response_buf /* returned */ ) | |
256 | { | |
257 | int rc = 0; | |
258 | ||
259 | /* SMBs NegProt, SessSetup, uLogoff do not have tcon yet so | |
260 | check for tcp and smb session status done differently | |
261 | for those three - in the calling routine */ | |
790fe579 | 262 | if (tcon) { |
bfb59820 | 263 | if (tcon->tidStatus == CifsExiting) { |
6ab16d24 SF |
264 | /* only tree disconnect, open, and write, |
265 | (and ulogoff which does not have tcon) | |
266 | are allowed as we start force umount */ | |
790fe579 | 267 | if ((smb_command != SMB_COM_WRITE_ANDX) && |
6ab16d24 SF |
268 | (smb_command != SMB_COM_OPEN_ANDX) && |
269 | (smb_command != SMB_COM_TREE_DISCONNECT)) { | |
790fe579 | 270 | cFYI(1, ("can not send cmd %d while umounting", |
6ab16d24 SF |
271 | smb_command)); |
272 | return -ENODEV; | |
273 | } | |
274 | } | |
275 | ||
790fe579 | 276 | if ((tcon->ses) && (tcon->ses->status != CifsExiting) && |
50c2f753 | 277 | (tcon->ses->server)) { |
1da177e4 | 278 | struct nls_table *nls_codepage; |
09d1db5c SF |
279 | /* Give Demultiplex thread up to 10 seconds to |
280 | reconnect, should be greater than cifs socket | |
281 | timeout which is 7 seconds */ | |
63135e08 SF |
282 | while (tcon->ses->server->tcpStatus == |
283 | CifsNeedReconnect) { | |
1da177e4 | 284 | wait_event_interruptible_timeout(tcon->ses->server->response_q, |
63135e08 SF |
285 | (tcon->ses->server->tcpStatus == |
286 | CifsGood), 10 * HZ); | |
790fe579 | 287 | if (tcon->ses->server->tcpStatus == |
09d1db5c | 288 | CifsNeedReconnect) { |
1da177e4 | 289 | /* on "soft" mounts we wait once */ |
4b18f2a9 | 290 | if (!tcon->retry || |
1da177e4 | 291 | (tcon->ses->status == CifsExiting)) { |
50c2f753 SF |
292 | cFYI(1, ("gave up waiting on " |
293 | "reconnect in smb_init")); | |
1da177e4 | 294 | return -EHOSTDOWN; |
09d1db5c SF |
295 | } /* else "hard" mount - keep retrying |
296 | until process is killed or server | |
297 | comes on-line */ | |
1da177e4 LT |
298 | } else /* TCP session is reestablished now */ |
299 | break; | |
1da177e4 | 300 | } |
1da177e4 LT |
301 | nls_codepage = load_nls_default(); |
302 | /* need to prevent multiple threads trying to | |
303 | simultaneously reconnect the same SMB session */ | |
304 | down(&tcon->ses->sesSem); | |
3b795210 | 305 | if (tcon->ses->need_reconnect) |
50c2f753 | 306 | rc = cifs_setup_session(0, tcon->ses, |
09d1db5c | 307 | nls_codepage); |
3b795210 | 308 | if (!rc && (tcon->need_reconnect)) { |
1da177e4 | 309 | mark_open_files_invalid(tcon); |
09d1db5c SF |
310 | rc = CIFSTCon(0, tcon->ses, tcon->treeName, |
311 | tcon, nls_codepage); | |
1da177e4 | 312 | up(&tcon->ses->sesSem); |
3e84469d SF |
313 | /* BB FIXME add code to check if wsize needs |
314 | update due to negotiated smb buffer size | |
315 | shrinking */ | |
35028d71 | 316 | if (rc == 0) { |
1da177e4 | 317 | atomic_inc(&tconInfoReconnectCount); |
35028d71 SF |
318 | /* tell server Unix caps we support */ |
319 | if (tcon->ses->capabilities & CAP_UNIX) | |
320 | reset_cifs_unix_caps( | |
321 | 0 /* no xid */, | |
322 | tcon, | |
323 | NULL /* do not know sb */, | |
324 | NULL /* no vol info */); | |
325 | } | |
1da177e4 LT |
326 | |
327 | cFYI(1, ("reconnect tcon rc = %d", rc)); | |
50c2f753 SF |
328 | /* Removed call to reopen open files here. |
329 | It is safer (and faster) to reopen files | |
09d1db5c | 330 | one at a time as needed in read and write */ |
1da177e4 | 331 | |
50c2f753 | 332 | /* Check if handle based operation so we |
09d1db5c SF |
333 | know whether we can continue or not without |
334 | returning to caller to reset file handle */ | |
50c2f753 | 335 | switch (smb_command) { |
1da177e4 LT |
336 | case SMB_COM_READ_ANDX: |
337 | case SMB_COM_WRITE_ANDX: | |
338 | case SMB_COM_CLOSE: | |
339 | case SMB_COM_FIND_CLOSE2: | |
340 | case SMB_COM_LOCKING_ANDX: { | |
341 | unload_nls(nls_codepage); | |
342 | return -EAGAIN; | |
343 | } | |
344 | } | |
345 | } else { | |
346 | up(&tcon->ses->sesSem); | |
347 | } | |
348 | unload_nls(nls_codepage); | |
349 | ||
350 | } else { | |
351 | return -EIO; | |
352 | } | |
353 | } | |
790fe579 | 354 | if (rc) |
1da177e4 LT |
355 | return rc; |
356 | ||
357 | *request_buf = cifs_buf_get(); | |
358 | if (*request_buf == NULL) { | |
359 | /* BB should we add a retry in here if not a writepage? */ | |
360 | return -ENOMEM; | |
361 | } | |
362 | /* Although the original thought was we needed the response buf for */ | |
363 | /* potential retries of smb operations it turns out we can determine */ | |
364 | /* from the mid flags when the request buffer can be resent without */ | |
365 | /* having to use a second distinct buffer for the response */ | |
790fe579 | 366 | if (response_buf) |
50c2f753 | 367 | *response_buf = *request_buf; |
1da177e4 LT |
368 | |
369 | header_assemble((struct smb_hdr *) *request_buf, smb_command, tcon, | |
ad7a2926 | 370 | wct); |
1da177e4 | 371 | |
790fe579 SF |
372 | if (tcon != NULL) |
373 | cifs_stats_inc(&tcon->num_smbs_sent); | |
a4544347 | 374 | |
1da177e4 LT |
375 | return rc; |
376 | } | |
377 | ||
50c2f753 | 378 | static int validate_t2(struct smb_t2_rsp *pSMB) |
1da177e4 LT |
379 | { |
380 | int rc = -EINVAL; | |
381 | int total_size; | |
50c2f753 | 382 | char *pBCC; |
1da177e4 LT |
383 | |
384 | /* check for plausible wct, bcc and t2 data and parm sizes */ | |
385 | /* check for parm and data offset going beyond end of smb */ | |
790fe579 SF |
386 | if (pSMB->hdr.WordCount >= 10) { |
387 | if ((le16_to_cpu(pSMB->t2_rsp.ParameterOffset) <= 1024) && | |
1da177e4 LT |
388 | (le16_to_cpu(pSMB->t2_rsp.DataOffset) <= 1024)) { |
389 | /* check that bcc is at least as big as parms + data */ | |
390 | /* check that bcc is less than negotiated smb buffer */ | |
391 | total_size = le16_to_cpu(pSMB->t2_rsp.ParameterCount); | |
790fe579 | 392 | if (total_size < 512) { |
c18c842b | 393 | total_size += |
63135e08 | 394 | le16_to_cpu(pSMB->t2_rsp.DataCount); |
1da177e4 | 395 | /* BCC le converted in SendReceive */ |
50c2f753 | 396 | pBCC = (pSMB->hdr.WordCount * 2) + |
09d1db5c | 397 | sizeof(struct smb_hdr) + |
1da177e4 | 398 | (char *)pSMB; |
790fe579 | 399 | if ((total_size <= (*(u16 *)pBCC)) && |
50c2f753 | 400 | (total_size < |
1da177e4 LT |
401 | CIFSMaxBufSize+MAX_CIFS_HDR_SIZE)) { |
402 | return 0; | |
403 | } | |
1da177e4 LT |
404 | } |
405 | } | |
406 | } | |
50c2f753 | 407 | cifs_dump_mem("Invalid transact2 SMB: ", (char *)pSMB, |
1da177e4 LT |
408 | sizeof(struct smb_t2_rsp) + 16); |
409 | return rc; | |
410 | } | |
411 | int | |
412 | CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) | |
413 | { | |
414 | NEGOTIATE_REQ *pSMB; | |
415 | NEGOTIATE_RSP *pSMBr; | |
416 | int rc = 0; | |
417 | int bytes_returned; | |
3979877e | 418 | int i; |
50c2f753 | 419 | struct TCP_Server_Info *server; |
1da177e4 | 420 | u16 count; |
750d1151 | 421 | unsigned int secFlags; |
733f99ac | 422 | u16 dialect; |
1da177e4 | 423 | |
790fe579 | 424 | if (ses->server) |
1da177e4 LT |
425 | server = ses->server; |
426 | else { | |
427 | rc = -EIO; | |
428 | return rc; | |
429 | } | |
430 | rc = smb_init(SMB_COM_NEGOTIATE, 0, NULL /* no tcon yet */ , | |
431 | (void **) &pSMB, (void **) &pSMBr); | |
432 | if (rc) | |
433 | return rc; | |
750d1151 SF |
434 | |
435 | /* if any of auth flags (ie not sign or seal) are overriden use them */ | |
790fe579 | 436 | if (ses->overrideSecFlg & (~(CIFSSEC_MUST_SIGN | CIFSSEC_MUST_SEAL))) |
762e5ab7 | 437 | secFlags = ses->overrideSecFlg; /* BB FIXME fix sign flags? */ |
750d1151 SF |
438 | else /* if override flags set only sign/seal OR them with global auth */ |
439 | secFlags = extended_security | ses->overrideSecFlg; | |
440 | ||
762e5ab7 | 441 | cFYI(1, ("secFlags 0x%x", secFlags)); |
f40c5628 | 442 | |
1982c344 | 443 | pSMB->hdr.Mid = GetNextMid(server); |
100c1ddc | 444 | pSMB->hdr.Flags2 |= (SMBFLG2_UNICODE | SMBFLG2_ERR_STATUS); |
a013689d | 445 | |
100c1ddc | 446 | if ((secFlags & CIFSSEC_MUST_KRB5) == CIFSSEC_MUST_KRB5) |
254e55ed | 447 | pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC; |
a013689d SF |
448 | else if ((secFlags & CIFSSEC_AUTH_MASK) == CIFSSEC_MAY_KRB5) { |
449 | cFYI(1, ("Kerberos only mechanism, enable extended security")); | |
450 | pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC; | |
451 | } | |
ac683924 SF |
452 | #ifdef CONFIG_CIFS_EXPERIMENTAL |
453 | else if ((secFlags & CIFSSEC_MUST_NTLMSSP) == CIFSSEC_MUST_NTLMSSP) | |
454 | pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC; | |
455 | else if ((secFlags & CIFSSEC_AUTH_MASK) == CIFSSEC_MAY_NTLMSSP) { | |
456 | cFYI(1, ("NTLMSSP only mechanism, enable extended security")); | |
457 | pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC; | |
458 | } | |
459 | #endif | |
50c2f753 | 460 | |
3979877e | 461 | count = 0; |
50c2f753 | 462 | for (i = 0; i < CIFS_NUM_PROT; i++) { |
3979877e SF |
463 | strncpy(pSMB->DialectsArray+count, protocols[i].name, 16); |
464 | count += strlen(protocols[i].name) + 1; | |
465 | /* null at end of source and target buffers anyway */ | |
466 | } | |
1da177e4 LT |
467 | pSMB->hdr.smb_buf_length += count; |
468 | pSMB->ByteCount = cpu_to_le16(count); | |
469 | ||
470 | rc = SendReceive(xid, ses, (struct smb_hdr *) pSMB, | |
471 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
50c2f753 | 472 | if (rc != 0) |
254e55ed SF |
473 | goto neg_err_exit; |
474 | ||
733f99ac | 475 | dialect = le16_to_cpu(pSMBr->DialectIndex); |
790fe579 | 476 | cFYI(1, ("Dialect: %d", dialect)); |
254e55ed | 477 | /* Check wct = 1 error case */ |
790fe579 | 478 | if ((pSMBr->hdr.WordCount < 13) || (dialect == BAD_PROT)) { |
254e55ed | 479 | /* core returns wct = 1, but we do not ask for core - otherwise |
50c2f753 | 480 | small wct just comes when dialect index is -1 indicating we |
254e55ed SF |
481 | could not negotiate a common dialect */ |
482 | rc = -EOPNOTSUPP; | |
483 | goto neg_err_exit; | |
50c2f753 | 484 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
790fe579 | 485 | } else if ((pSMBr->hdr.WordCount == 13) |
733f99ac AV |
486 | && ((dialect == LANMAN_PROT) |
487 | || (dialect == LANMAN2_PROT))) { | |
b815f1e5 | 488 | __s16 tmp; |
50c2f753 | 489 | struct lanman_neg_rsp *rsp = (struct lanman_neg_rsp *)pSMBr; |
254e55ed | 490 | |
790fe579 | 491 | if ((secFlags & CIFSSEC_MAY_LANMAN) || |
750d1151 | 492 | (secFlags & CIFSSEC_MAY_PLNTXT)) |
254e55ed SF |
493 | server->secType = LANMAN; |
494 | else { | |
495 | cERROR(1, ("mount failed weak security disabled" | |
496 | " in /proc/fs/cifs/SecurityFlags")); | |
3979877e SF |
497 | rc = -EOPNOTSUPP; |
498 | goto neg_err_exit; | |
50c2f753 | 499 | } |
254e55ed SF |
500 | server->secMode = (__u8)le16_to_cpu(rsp->SecurityMode); |
501 | server->maxReq = le16_to_cpu(rsp->MaxMpxCount); | |
502 | server->maxBuf = min((__u32)le16_to_cpu(rsp->MaxBufSize), | |
3979877e | 503 | (__u32)CIFSMaxBufSize + MAX_CIFS_HDR_SIZE); |
eca6acf9 | 504 | server->max_vcs = le16_to_cpu(rsp->MaxNumberVcs); |
254e55ed SF |
505 | GETU32(server->sessid) = le32_to_cpu(rsp->SessionKey); |
506 | /* even though we do not use raw we might as well set this | |
507 | accurately, in case we ever find a need for it */ | |
790fe579 | 508 | if ((le16_to_cpu(rsp->RawMode) & RAW_ENABLE) == RAW_ENABLE) { |
eca6acf9 | 509 | server->max_rw = 0xFF00; |
254e55ed SF |
510 | server->capabilities = CAP_MPX_MODE | CAP_RAW_MODE; |
511 | } else { | |
eca6acf9 | 512 | server->max_rw = 0;/* do not need to use raw anyway */ |
254e55ed SF |
513 | server->capabilities = CAP_MPX_MODE; |
514 | } | |
b815f1e5 | 515 | tmp = (__s16)le16_to_cpu(rsp->ServerTimeZone); |
1a70d652 | 516 | if (tmp == -1) { |
25ee4a98 SF |
517 | /* OS/2 often does not set timezone therefore |
518 | * we must use server time to calc time zone. | |
b815f1e5 SF |
519 | * Could deviate slightly from the right zone. |
520 | * Smallest defined timezone difference is 15 minutes | |
521 | * (i.e. Nepal). Rounding up/down is done to match | |
522 | * this requirement. | |
25ee4a98 | 523 | */ |
b815f1e5 | 524 | int val, seconds, remain, result; |
25ee4a98 SF |
525 | struct timespec ts, utc; |
526 | utc = CURRENT_TIME; | |
c4a2c08d JL |
527 | ts = cnvrtDosUnixTm(rsp->SrvTime.Date, |
528 | rsp->SrvTime.Time, 0); | |
50c2f753 SF |
529 | cFYI(1, ("SrvTime %d sec since 1970 (utc: %d) diff: %d", |
530 | (int)ts.tv_sec, (int)utc.tv_sec, | |
25ee4a98 | 531 | (int)(utc.tv_sec - ts.tv_sec))); |
b815f1e5 | 532 | val = (int)(utc.tv_sec - ts.tv_sec); |
8594c15a | 533 | seconds = abs(val); |
947a5067 | 534 | result = (seconds / MIN_TZ_ADJ) * MIN_TZ_ADJ; |
b815f1e5 | 535 | remain = seconds % MIN_TZ_ADJ; |
790fe579 | 536 | if (remain >= (MIN_TZ_ADJ / 2)) |
b815f1e5 | 537 | result += MIN_TZ_ADJ; |
790fe579 | 538 | if (val < 0) |
ad7a2926 | 539 | result = -result; |
b815f1e5 | 540 | server->timeAdj = result; |
25ee4a98 | 541 | } else { |
b815f1e5 SF |
542 | server->timeAdj = (int)tmp; |
543 | server->timeAdj *= 60; /* also in seconds */ | |
25ee4a98 | 544 | } |
790fe579 | 545 | cFYI(1, ("server->timeAdj: %d seconds", server->timeAdj)); |
25ee4a98 | 546 | |
3979877e | 547 | |
254e55ed | 548 | /* BB get server time for time conversions and add |
50c2f753 | 549 | code to use it and timezone since this is not UTC */ |
3979877e | 550 | |
50c2f753 | 551 | if (rsp->EncryptionKeyLength == |
25ee4a98 | 552 | cpu_to_le16(CIFS_CRYPTO_KEY_SIZE)) { |
254e55ed SF |
553 | memcpy(server->cryptKey, rsp->EncryptionKey, |
554 | CIFS_CRYPTO_KEY_SIZE); | |
555 | } else if (server->secMode & SECMODE_PW_ENCRYPT) { | |
556 | rc = -EIO; /* need cryptkey unless plain text */ | |
557 | goto neg_err_exit; | |
558 | } | |
3979877e | 559 | |
790fe579 | 560 | cFYI(1, ("LANMAN negotiated")); |
254e55ed SF |
561 | /* we will not end up setting signing flags - as no signing |
562 | was in LANMAN and server did not return the flags on */ | |
563 | goto signing_check; | |
7c7b25bc | 564 | #else /* weak security disabled */ |
790fe579 | 565 | } else if (pSMBr->hdr.WordCount == 13) { |
50c2f753 | 566 | cERROR(1, ("mount failed, cifs module not built " |
254e55ed | 567 | "with CIFS_WEAK_PW_HASH support")); |
7c7b25bc SF |
568 | rc = -EOPNOTSUPP; |
569 | #endif /* WEAK_PW_HASH */ | |
254e55ed | 570 | goto neg_err_exit; |
790fe579 | 571 | } else if (pSMBr->hdr.WordCount != 17) { |
254e55ed SF |
572 | /* unknown wct */ |
573 | rc = -EOPNOTSUPP; | |
574 | goto neg_err_exit; | |
575 | } | |
576 | /* else wct == 17 NTLM */ | |
577 | server->secMode = pSMBr->SecurityMode; | |
790fe579 SF |
578 | if ((server->secMode & SECMODE_USER) == 0) |
579 | cFYI(1, ("share mode security")); | |
bdc4bf6e | 580 | |
790fe579 | 581 | if ((server->secMode & SECMODE_PW_ENCRYPT) == 0) |
bdc4bf6e | 582 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
750d1151 | 583 | if ((secFlags & CIFSSEC_MAY_PLNTXT) == 0) |
bdc4bf6e | 584 | #endif /* CIFS_WEAK_PW_HASH */ |
50c2f753 | 585 | cERROR(1, ("Server requests plain text password" |
254e55ed | 586 | " but client support disabled")); |
9312f675 | 587 | |
790fe579 | 588 | if ((secFlags & CIFSSEC_MUST_NTLMV2) == CIFSSEC_MUST_NTLMV2) |
254e55ed | 589 | server->secType = NTLMv2; |
790fe579 | 590 | else if (secFlags & CIFSSEC_MAY_NTLM) |
254e55ed | 591 | server->secType = NTLM; |
790fe579 | 592 | else if (secFlags & CIFSSEC_MAY_NTLMV2) |
f40c5628 | 593 | server->secType = NTLMv2; |
a013689d SF |
594 | else if (secFlags & CIFSSEC_MAY_KRB5) |
595 | server->secType = Kerberos; | |
ac683924 | 596 | else if (secFlags & CIFSSEC_MAY_NTLMSSP) |
f46c7234 | 597 | server->secType = RawNTLMSSP; |
a013689d SF |
598 | else if (secFlags & CIFSSEC_MAY_LANMAN) |
599 | server->secType = LANMAN; | |
600 | /* #ifdef CONFIG_CIFS_EXPERIMENTAL | |
601 | else if (secFlags & CIFSSEC_MAY_PLNTXT) | |
602 | server->secType = ?? | |
603 | #endif */ | |
604 | else { | |
605 | rc = -EOPNOTSUPP; | |
606 | cERROR(1, ("Invalid security type")); | |
607 | goto neg_err_exit; | |
608 | } | |
609 | /* else ... any others ...? */ | |
254e55ed SF |
610 | |
611 | /* one byte, so no need to convert this or EncryptionKeyLen from | |
612 | little endian */ | |
613 | server->maxReq = le16_to_cpu(pSMBr->MaxMpxCount); | |
614 | /* probably no need to store and check maxvcs */ | |
615 | server->maxBuf = min(le32_to_cpu(pSMBr->MaxBufferSize), | |
1da177e4 | 616 | (__u32) CIFSMaxBufSize + MAX_CIFS_HDR_SIZE); |
eca6acf9 | 617 | server->max_rw = le32_to_cpu(pSMBr->MaxRawSize); |
90c81e0b | 618 | cFYI(DBG2, ("Max buf = %d", ses->server->maxBuf)); |
254e55ed SF |
619 | GETU32(ses->server->sessid) = le32_to_cpu(pSMBr->SessionKey); |
620 | server->capabilities = le32_to_cpu(pSMBr->Capabilities); | |
b815f1e5 SF |
621 | server->timeAdj = (int)(__s16)le16_to_cpu(pSMBr->ServerTimeZone); |
622 | server->timeAdj *= 60; | |
254e55ed SF |
623 | if (pSMBr->EncryptionKeyLength == CIFS_CRYPTO_KEY_SIZE) { |
624 | memcpy(server->cryptKey, pSMBr->u.EncryptionKey, | |
625 | CIFS_CRYPTO_KEY_SIZE); | |
626 | } else if ((pSMBr->hdr.Flags2 & SMBFLG2_EXT_SEC) | |
627 | && (pSMBr->EncryptionKeyLength == 0)) { | |
628 | /* decode security blob */ | |
629 | } else if (server->secMode & SECMODE_PW_ENCRYPT) { | |
630 | rc = -EIO; /* no crypt key only if plain text pwd */ | |
631 | goto neg_err_exit; | |
632 | } | |
1da177e4 | 633 | |
254e55ed SF |
634 | /* BB might be helpful to save off the domain of server here */ |
635 | ||
50c2f753 | 636 | if ((pSMBr->hdr.Flags2 & SMBFLG2_EXT_SEC) && |
254e55ed SF |
637 | (server->capabilities & CAP_EXTENDED_SECURITY)) { |
638 | count = pSMBr->ByteCount; | |
e187e44e | 639 | if (count < 16) { |
254e55ed | 640 | rc = -EIO; |
e187e44e JL |
641 | goto neg_err_exit; |
642 | } | |
e7ddee90 JL |
643 | read_lock(&cifs_tcp_ses_lock); |
644 | if (server->srv_count > 1) { | |
645 | read_unlock(&cifs_tcp_ses_lock); | |
e187e44e JL |
646 | if (memcmp(server->server_GUID, |
647 | pSMBr->u.extended_response. | |
648 | GUID, 16) != 0) { | |
649 | cFYI(1, ("server UID changed")); | |
254e55ed | 650 | memcpy(server->server_GUID, |
e187e44e JL |
651 | pSMBr->u.extended_response.GUID, |
652 | 16); | |
653 | } | |
e7ddee90 JL |
654 | } else { |
655 | read_unlock(&cifs_tcp_ses_lock); | |
e187e44e JL |
656 | memcpy(server->server_GUID, |
657 | pSMBr->u.extended_response.GUID, 16); | |
e7ddee90 | 658 | } |
e187e44e JL |
659 | |
660 | if (count == 16) { | |
661 | server->secType = RawNTLMSSP; | |
254e55ed SF |
662 | } else { |
663 | rc = decode_negTokenInit(pSMBr->u.extended_response. | |
664 | SecurityBlob, | |
665 | count - 16, | |
666 | &server->secType); | |
ef571cad | 667 | if (rc == 1) |
e545937a | 668 | rc = 0; |
ef571cad | 669 | else |
254e55ed | 670 | rc = -EINVAL; |
1da177e4 | 671 | } |
254e55ed SF |
672 | } else |
673 | server->capabilities &= ~CAP_EXTENDED_SECURITY; | |
674 | ||
6344a423 | 675 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
254e55ed | 676 | signing_check: |
6344a423 | 677 | #endif |
762e5ab7 SF |
678 | if ((secFlags & CIFSSEC_MAY_SIGN) == 0) { |
679 | /* MUST_SIGN already includes the MAY_SIGN FLAG | |
680 | so if this is zero it means that signing is disabled */ | |
681 | cFYI(1, ("Signing disabled")); | |
abb63d6c | 682 | if (server->secMode & SECMODE_SIGN_REQUIRED) { |
762e5ab7 | 683 | cERROR(1, ("Server requires " |
7111d214 JL |
684 | "packet signing to be enabled in " |
685 | "/proc/fs/cifs/SecurityFlags.")); | |
abb63d6c SF |
686 | rc = -EOPNOTSUPP; |
687 | } | |
50c2f753 | 688 | server->secMode &= |
254e55ed | 689 | ~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED); |
762e5ab7 SF |
690 | } else if ((secFlags & CIFSSEC_MUST_SIGN) == CIFSSEC_MUST_SIGN) { |
691 | /* signing required */ | |
38c10a1d | 692 | cFYI(1, ("Must sign - secFlags 0x%x", secFlags)); |
762e5ab7 SF |
693 | if ((server->secMode & |
694 | (SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED)) == 0) { | |
695 | cERROR(1, | |
696 | ("signing required but server lacks support")); | |
38c10a1d | 697 | rc = -EOPNOTSUPP; |
762e5ab7 SF |
698 | } else |
699 | server->secMode |= SECMODE_SIGN_REQUIRED; | |
700 | } else { | |
701 | /* signing optional ie CIFSSEC_MAY_SIGN */ | |
790fe579 | 702 | if ((server->secMode & SECMODE_SIGN_REQUIRED) == 0) |
50c2f753 | 703 | server->secMode &= |
254e55ed | 704 | ~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED); |
1da177e4 | 705 | } |
50c2f753 SF |
706 | |
707 | neg_err_exit: | |
4a6d87f1 | 708 | cifs_buf_release(pSMB); |
254e55ed | 709 | |
790fe579 | 710 | cFYI(1, ("negprot rc %d", rc)); |
1da177e4 LT |
711 | return rc; |
712 | } | |
713 | ||
714 | int | |
715 | CIFSSMBTDis(const int xid, struct cifsTconInfo *tcon) | |
716 | { | |
717 | struct smb_hdr *smb_buffer; | |
1da177e4 | 718 | int rc = 0; |
1da177e4 LT |
719 | |
720 | cFYI(1, ("In tree disconnect")); | |
1da177e4 | 721 | |
f1987b44 JL |
722 | /* BB: do we need to check this? These should never be NULL. */ |
723 | if ((tcon->ses == NULL) || (tcon->ses->server == NULL)) | |
724 | return -EIO; | |
1da177e4 | 725 | |
f1987b44 JL |
726 | /* |
727 | * No need to return error on this operation if tid invalidated and | |
728 | * closed on server already e.g. due to tcp session crashing. Also, | |
729 | * the tcon is no longer on the list, so no need to take lock before | |
730 | * checking this. | |
731 | */ | |
268875b9 | 732 | if ((tcon->need_reconnect) || (tcon->ses->need_reconnect)) |
50c2f753 | 733 | return 0; |
1da177e4 | 734 | |
50c2f753 | 735 | rc = small_smb_init(SMB_COM_TREE_DISCONNECT, 0, tcon, |
09d1db5c | 736 | (void **)&smb_buffer); |
f1987b44 | 737 | if (rc) |
1da177e4 | 738 | return rc; |
133672ef SF |
739 | |
740 | rc = SendReceiveNoRsp(xid, tcon->ses, smb_buffer, 0); | |
1da177e4 | 741 | if (rc) |
966ca923 | 742 | cFYI(1, ("Tree disconnect failed %d", rc)); |
1da177e4 | 743 | |
50c2f753 | 744 | /* No need to return error on this operation if tid invalidated and |
f1987b44 | 745 | closed on server already e.g. due to tcp session crashing */ |
1da177e4 LT |
746 | if (rc == -EAGAIN) |
747 | rc = 0; | |
748 | ||
749 | return rc; | |
750 | } | |
751 | ||
752 | int | |
753 | CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses) | |
754 | { | |
1da177e4 LT |
755 | LOGOFF_ANDX_REQ *pSMB; |
756 | int rc = 0; | |
1da177e4 LT |
757 | |
758 | cFYI(1, ("In SMBLogoff for session disconnect")); | |
3b795210 | 759 | |
14fbf50d JL |
760 | /* |
761 | * BB: do we need to check validity of ses and server? They should | |
762 | * always be valid since we have an active reference. If not, that | |
763 | * should probably be a BUG() | |
764 | */ | |
765 | if (!ses || !ses->server) | |
3b795210 SF |
766 | return -EIO; |
767 | ||
14fbf50d | 768 | down(&ses->sesSem); |
3b795210 SF |
769 | if (ses->need_reconnect) |
770 | goto session_already_dead; /* no need to send SMBlogoff if uid | |
771 | already closed due to reconnect */ | |
1da177e4 LT |
772 | rc = small_smb_init(SMB_COM_LOGOFF_ANDX, 2, NULL, (void **)&pSMB); |
773 | if (rc) { | |
774 | up(&ses->sesSem); | |
775 | return rc; | |
776 | } | |
777 | ||
3b795210 | 778 | pSMB->hdr.Mid = GetNextMid(ses->server); |
1982c344 | 779 | |
3b795210 | 780 | if (ses->server->secMode & |
1da177e4 LT |
781 | (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) |
782 | pSMB->hdr.Flags2 |= SMBFLG2_SECURITY_SIGNATURE; | |
1da177e4 LT |
783 | |
784 | pSMB->hdr.Uid = ses->Suid; | |
785 | ||
786 | pSMB->AndXCommand = 0xFF; | |
133672ef | 787 | rc = SendReceiveNoRsp(xid, ses, (struct smb_hdr *) pSMB, 0); |
3b795210 | 788 | session_already_dead: |
a59c6586 | 789 | up(&ses->sesSem); |
1da177e4 LT |
790 | |
791 | /* if session dead then we do not need to do ulogoff, | |
50c2f753 | 792 | since server closed smb session, no sense reporting |
1da177e4 LT |
793 | error */ |
794 | if (rc == -EAGAIN) | |
795 | rc = 0; | |
796 | return rc; | |
797 | } | |
798 | ||
2d785a50 SF |
799 | int |
800 | CIFSPOSIXDelFile(const int xid, struct cifsTconInfo *tcon, const char *fileName, | |
801 | __u16 type, const struct nls_table *nls_codepage, int remap) | |
802 | { | |
803 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
804 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
805 | struct unlink_psx_rq *pRqD; | |
806 | int name_len; | |
807 | int rc = 0; | |
808 | int bytes_returned = 0; | |
809 | __u16 params, param_offset, offset, byte_count; | |
810 | ||
811 | cFYI(1, ("In POSIX delete")); | |
812 | PsxDelete: | |
813 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
814 | (void **) &pSMBr); | |
815 | if (rc) | |
816 | return rc; | |
817 | ||
818 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
819 | name_len = | |
820 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, | |
821 | PATH_MAX, nls_codepage, remap); | |
822 | name_len++; /* trailing null */ | |
823 | name_len *= 2; | |
824 | } else { /* BB add path length overrun check */ | |
825 | name_len = strnlen(fileName, PATH_MAX); | |
826 | name_len++; /* trailing null */ | |
827 | strncpy(pSMB->FileName, fileName, name_len); | |
828 | } | |
829 | ||
830 | params = 6 + name_len; | |
831 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
832 | pSMB->MaxDataCount = 0; /* BB double check this with jra */ | |
833 | pSMB->MaxSetupCount = 0; | |
834 | pSMB->Reserved = 0; | |
835 | pSMB->Flags = 0; | |
836 | pSMB->Timeout = 0; | |
837 | pSMB->Reserved2 = 0; | |
838 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
839 | InformationLevel) - 4; | |
840 | offset = param_offset + params; | |
841 | ||
842 | /* Setup pointer to Request Data (inode type) */ | |
843 | pRqD = (struct unlink_psx_rq *)(((char *)&pSMB->hdr.Protocol) + offset); | |
844 | pRqD->type = cpu_to_le16(type); | |
845 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
846 | pSMB->DataOffset = cpu_to_le16(offset); | |
847 | pSMB->SetupCount = 1; | |
848 | pSMB->Reserved3 = 0; | |
849 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
850 | byte_count = 3 /* pad */ + params + sizeof(struct unlink_psx_rq); | |
851 | ||
852 | pSMB->DataCount = cpu_to_le16(sizeof(struct unlink_psx_rq)); | |
853 | pSMB->TotalDataCount = cpu_to_le16(sizeof(struct unlink_psx_rq)); | |
854 | pSMB->ParameterCount = cpu_to_le16(params); | |
855 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
856 | pSMB->InformationLevel = cpu_to_le16(SMB_POSIX_UNLINK); | |
857 | pSMB->Reserved4 = 0; | |
858 | pSMB->hdr.smb_buf_length += byte_count; | |
859 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
860 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
861 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
ad7a2926 | 862 | if (rc) |
2d785a50 | 863 | cFYI(1, ("Posix delete returned %d", rc)); |
2d785a50 SF |
864 | cifs_buf_release(pSMB); |
865 | ||
866 | cifs_stats_inc(&tcon->num_deletes); | |
867 | ||
868 | if (rc == -EAGAIN) | |
869 | goto PsxDelete; | |
870 | ||
871 | return rc; | |
872 | } | |
873 | ||
1da177e4 | 874 | int |
737b758c SF |
875 | CIFSSMBDelFile(const int xid, struct cifsTconInfo *tcon, const char *fileName, |
876 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
877 | { |
878 | DELETE_FILE_REQ *pSMB = NULL; | |
879 | DELETE_FILE_RSP *pSMBr = NULL; | |
880 | int rc = 0; | |
881 | int bytes_returned; | |
882 | int name_len; | |
883 | ||
884 | DelFileRetry: | |
885 | rc = smb_init(SMB_COM_DELETE, 1, tcon, (void **) &pSMB, | |
886 | (void **) &pSMBr); | |
887 | if (rc) | |
888 | return rc; | |
889 | ||
890 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
891 | name_len = | |
50c2f753 | 892 | cifsConvertToUCS((__le16 *) pSMB->fileName, fileName, |
737b758c | 893 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
894 | name_len++; /* trailing null */ |
895 | name_len *= 2; | |
09d1db5c | 896 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
897 | name_len = strnlen(fileName, PATH_MAX); |
898 | name_len++; /* trailing null */ | |
899 | strncpy(pSMB->fileName, fileName, name_len); | |
900 | } | |
901 | pSMB->SearchAttributes = | |
902 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM); | |
903 | pSMB->BufferFormat = 0x04; | |
904 | pSMB->hdr.smb_buf_length += name_len + 1; | |
905 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
906 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
907 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 908 | cifs_stats_inc(&tcon->num_deletes); |
ad7a2926 | 909 | if (rc) |
1da177e4 | 910 | cFYI(1, ("Error in RMFile = %d", rc)); |
1da177e4 LT |
911 | |
912 | cifs_buf_release(pSMB); | |
913 | if (rc == -EAGAIN) | |
914 | goto DelFileRetry; | |
915 | ||
916 | return rc; | |
917 | } | |
918 | ||
919 | int | |
50c2f753 | 920 | CIFSSMBRmDir(const int xid, struct cifsTconInfo *tcon, const char *dirName, |
737b758c | 921 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
922 | { |
923 | DELETE_DIRECTORY_REQ *pSMB = NULL; | |
924 | DELETE_DIRECTORY_RSP *pSMBr = NULL; | |
925 | int rc = 0; | |
926 | int bytes_returned; | |
927 | int name_len; | |
928 | ||
929 | cFYI(1, ("In CIFSSMBRmDir")); | |
930 | RmDirRetry: | |
931 | rc = smb_init(SMB_COM_DELETE_DIRECTORY, 0, tcon, (void **) &pSMB, | |
932 | (void **) &pSMBr); | |
933 | if (rc) | |
934 | return rc; | |
935 | ||
936 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
737b758c SF |
937 | name_len = cifsConvertToUCS((__le16 *) pSMB->DirName, dirName, |
938 | PATH_MAX, nls_codepage, remap); | |
1da177e4 LT |
939 | name_len++; /* trailing null */ |
940 | name_len *= 2; | |
09d1db5c | 941 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
942 | name_len = strnlen(dirName, PATH_MAX); |
943 | name_len++; /* trailing null */ | |
944 | strncpy(pSMB->DirName, dirName, name_len); | |
945 | } | |
946 | ||
947 | pSMB->BufferFormat = 0x04; | |
948 | pSMB->hdr.smb_buf_length += name_len + 1; | |
949 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
950 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
951 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 952 | cifs_stats_inc(&tcon->num_rmdirs); |
ad7a2926 | 953 | if (rc) |
1da177e4 | 954 | cFYI(1, ("Error in RMDir = %d", rc)); |
1da177e4 LT |
955 | |
956 | cifs_buf_release(pSMB); | |
957 | if (rc == -EAGAIN) | |
958 | goto RmDirRetry; | |
959 | return rc; | |
960 | } | |
961 | ||
962 | int | |
963 | CIFSSMBMkDir(const int xid, struct cifsTconInfo *tcon, | |
737b758c | 964 | const char *name, const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
965 | { |
966 | int rc = 0; | |
967 | CREATE_DIRECTORY_REQ *pSMB = NULL; | |
968 | CREATE_DIRECTORY_RSP *pSMBr = NULL; | |
969 | int bytes_returned; | |
970 | int name_len; | |
971 | ||
972 | cFYI(1, ("In CIFSSMBMkDir")); | |
973 | MkDirRetry: | |
974 | rc = smb_init(SMB_COM_CREATE_DIRECTORY, 0, tcon, (void **) &pSMB, | |
975 | (void **) &pSMBr); | |
976 | if (rc) | |
977 | return rc; | |
978 | ||
979 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
50c2f753 | 980 | name_len = cifsConvertToUCS((__le16 *) pSMB->DirName, name, |
737b758c | 981 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
982 | name_len++; /* trailing null */ |
983 | name_len *= 2; | |
09d1db5c | 984 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
985 | name_len = strnlen(name, PATH_MAX); |
986 | name_len++; /* trailing null */ | |
987 | strncpy(pSMB->DirName, name, name_len); | |
988 | } | |
989 | ||
990 | pSMB->BufferFormat = 0x04; | |
991 | pSMB->hdr.smb_buf_length += name_len + 1; | |
992 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
993 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
994 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 995 | cifs_stats_inc(&tcon->num_mkdirs); |
ad7a2926 | 996 | if (rc) |
1da177e4 | 997 | cFYI(1, ("Error in Mkdir = %d", rc)); |
a5a2b489 | 998 | |
1da177e4 LT |
999 | cifs_buf_release(pSMB); |
1000 | if (rc == -EAGAIN) | |
1001 | goto MkDirRetry; | |
1002 | return rc; | |
1003 | } | |
1004 | ||
2dd29d31 SF |
1005 | int |
1006 | CIFSPOSIXCreate(const int xid, struct cifsTconInfo *tcon, __u32 posix_flags, | |
ad7a2926 | 1007 | __u64 mode, __u16 *netfid, FILE_UNIX_BASIC_INFO *pRetData, |
50c2f753 | 1008 | __u32 *pOplock, const char *name, |
2dd29d31 SF |
1009 | const struct nls_table *nls_codepage, int remap) |
1010 | { | |
1011 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
1012 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
1013 | int name_len; | |
1014 | int rc = 0; | |
1015 | int bytes_returned = 0; | |
2dd29d31 | 1016 | __u16 params, param_offset, offset, byte_count, count; |
ad7a2926 SF |
1017 | OPEN_PSX_REQ *pdata; |
1018 | OPEN_PSX_RSP *psx_rsp; | |
2dd29d31 SF |
1019 | |
1020 | cFYI(1, ("In POSIX Create")); | |
1021 | PsxCreat: | |
1022 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
1023 | (void **) &pSMBr); | |
1024 | if (rc) | |
1025 | return rc; | |
1026 | ||
1027 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1028 | name_len = | |
1029 | cifsConvertToUCS((__le16 *) pSMB->FileName, name, | |
1030 | PATH_MAX, nls_codepage, remap); | |
1031 | name_len++; /* trailing null */ | |
1032 | name_len *= 2; | |
1033 | } else { /* BB improve the check for buffer overruns BB */ | |
1034 | name_len = strnlen(name, PATH_MAX); | |
1035 | name_len++; /* trailing null */ | |
1036 | strncpy(pSMB->FileName, name, name_len); | |
1037 | } | |
1038 | ||
1039 | params = 6 + name_len; | |
1040 | count = sizeof(OPEN_PSX_REQ); | |
1041 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
1042 | pSMB->MaxDataCount = cpu_to_le16(1000); /* large enough */ | |
1043 | pSMB->MaxSetupCount = 0; | |
1044 | pSMB->Reserved = 0; | |
1045 | pSMB->Flags = 0; | |
1046 | pSMB->Timeout = 0; | |
1047 | pSMB->Reserved2 = 0; | |
1048 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 1049 | InformationLevel) - 4; |
2dd29d31 | 1050 | offset = param_offset + params; |
2dd29d31 | 1051 | pdata = (OPEN_PSX_REQ *)(((char *)&pSMB->hdr.Protocol) + offset); |
8f2376ad | 1052 | pdata->Level = cpu_to_le16(SMB_QUERY_FILE_UNIX_BASIC); |
2dd29d31 | 1053 | pdata->Permissions = cpu_to_le64(mode); |
50c2f753 | 1054 | pdata->PosixOpenFlags = cpu_to_le32(posix_flags); |
2dd29d31 SF |
1055 | pdata->OpenFlags = cpu_to_le32(*pOplock); |
1056 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
1057 | pSMB->DataOffset = cpu_to_le16(offset); | |
1058 | pSMB->SetupCount = 1; | |
1059 | pSMB->Reserved3 = 0; | |
1060 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
1061 | byte_count = 3 /* pad */ + params + count; | |
1062 | ||
1063 | pSMB->DataCount = cpu_to_le16(count); | |
1064 | pSMB->ParameterCount = cpu_to_le16(params); | |
1065 | pSMB->TotalDataCount = pSMB->DataCount; | |
1066 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
1067 | pSMB->InformationLevel = cpu_to_le16(SMB_POSIX_OPEN); | |
1068 | pSMB->Reserved4 = 0; | |
50c2f753 | 1069 | pSMB->hdr.smb_buf_length += byte_count; |
2dd29d31 SF |
1070 | pSMB->ByteCount = cpu_to_le16(byte_count); |
1071 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1072 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
1073 | if (rc) { | |
1074 | cFYI(1, ("Posix create returned %d", rc)); | |
1075 | goto psx_create_err; | |
1076 | } | |
1077 | ||
790fe579 | 1078 | cFYI(1, ("copying inode info")); |
2dd29d31 SF |
1079 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
1080 | ||
1081 | if (rc || (pSMBr->ByteCount < sizeof(OPEN_PSX_RSP))) { | |
1082 | rc = -EIO; /* bad smb */ | |
1083 | goto psx_create_err; | |
1084 | } | |
1085 | ||
1086 | /* copy return information to pRetData */ | |
50c2f753 | 1087 | psx_rsp = (OPEN_PSX_RSP *)((char *) &pSMBr->hdr.Protocol |
2dd29d31 | 1088 | + le16_to_cpu(pSMBr->t2.DataOffset)); |
50c2f753 | 1089 | |
2dd29d31 | 1090 | *pOplock = le16_to_cpu(psx_rsp->OplockFlags); |
790fe579 | 1091 | if (netfid) |
2dd29d31 SF |
1092 | *netfid = psx_rsp->Fid; /* cifs fid stays in le */ |
1093 | /* Let caller know file was created so we can set the mode. */ | |
1094 | /* Do we care about the CreateAction in any other cases? */ | |
790fe579 | 1095 | if (cpu_to_le32(FILE_CREATE) == psx_rsp->CreateAction) |
2dd29d31 SF |
1096 | *pOplock |= CIFS_CREATE_ACTION; |
1097 | /* check to make sure response data is there */ | |
8f2376ad CG |
1098 | if (psx_rsp->ReturnedLevel != cpu_to_le16(SMB_QUERY_FILE_UNIX_BASIC)) { |
1099 | pRetData->Type = cpu_to_le32(-1); /* unknown */ | |
90c81e0b | 1100 | cFYI(DBG2, ("unknown type")); |
cbac3cba | 1101 | } else { |
790fe579 | 1102 | if (pSMBr->ByteCount < sizeof(OPEN_PSX_RSP) |
2dd29d31 | 1103 | + sizeof(FILE_UNIX_BASIC_INFO)) { |
50c2f753 | 1104 | cERROR(1, ("Open response data too small")); |
8f2376ad | 1105 | pRetData->Type = cpu_to_le32(-1); |
2dd29d31 SF |
1106 | goto psx_create_err; |
1107 | } | |
50c2f753 | 1108 | memcpy((char *) pRetData, |
cbac3cba | 1109 | (char *)psx_rsp + sizeof(OPEN_PSX_RSP), |
26f57364 | 1110 | sizeof(FILE_UNIX_BASIC_INFO)); |
2dd29d31 | 1111 | } |
2dd29d31 SF |
1112 | |
1113 | psx_create_err: | |
1114 | cifs_buf_release(pSMB); | |
1115 | ||
65bc98b0 SF |
1116 | if (posix_flags & SMB_O_DIRECTORY) |
1117 | cifs_stats_inc(&tcon->num_posixmkdirs); | |
1118 | else | |
1119 | cifs_stats_inc(&tcon->num_posixopens); | |
2dd29d31 SF |
1120 | |
1121 | if (rc == -EAGAIN) | |
1122 | goto PsxCreat; | |
1123 | ||
50c2f753 | 1124 | return rc; |
2dd29d31 SF |
1125 | } |
1126 | ||
a9d02ad4 SF |
1127 | static __u16 convert_disposition(int disposition) |
1128 | { | |
1129 | __u16 ofun = 0; | |
1130 | ||
1131 | switch (disposition) { | |
1132 | case FILE_SUPERSEDE: | |
1133 | ofun = SMBOPEN_OCREATE | SMBOPEN_OTRUNC; | |
1134 | break; | |
1135 | case FILE_OPEN: | |
1136 | ofun = SMBOPEN_OAPPEND; | |
1137 | break; | |
1138 | case FILE_CREATE: | |
1139 | ofun = SMBOPEN_OCREATE; | |
1140 | break; | |
1141 | case FILE_OPEN_IF: | |
1142 | ofun = SMBOPEN_OCREATE | SMBOPEN_OAPPEND; | |
1143 | break; | |
1144 | case FILE_OVERWRITE: | |
1145 | ofun = SMBOPEN_OTRUNC; | |
1146 | break; | |
1147 | case FILE_OVERWRITE_IF: | |
1148 | ofun = SMBOPEN_OCREATE | SMBOPEN_OTRUNC; | |
1149 | break; | |
1150 | default: | |
790fe579 | 1151 | cFYI(1, ("unknown disposition %d", disposition)); |
a9d02ad4 SF |
1152 | ofun = SMBOPEN_OAPPEND; /* regular open */ |
1153 | } | |
1154 | return ofun; | |
1155 | } | |
1156 | ||
35fc37d5 JL |
1157 | static int |
1158 | access_flags_to_smbopen_mode(const int access_flags) | |
1159 | { | |
1160 | int masked_flags = access_flags & (GENERIC_READ | GENERIC_WRITE); | |
1161 | ||
1162 | if (masked_flags == GENERIC_READ) | |
1163 | return SMBOPEN_READ; | |
1164 | else if (masked_flags == GENERIC_WRITE) | |
1165 | return SMBOPEN_WRITE; | |
1166 | ||
1167 | /* just go for read/write */ | |
1168 | return SMBOPEN_READWRITE; | |
1169 | } | |
1170 | ||
a9d02ad4 SF |
1171 | int |
1172 | SMBLegacyOpen(const int xid, struct cifsTconInfo *tcon, | |
1173 | const char *fileName, const int openDisposition, | |
ad7a2926 SF |
1174 | const int access_flags, const int create_options, __u16 *netfid, |
1175 | int *pOplock, FILE_ALL_INFO *pfile_info, | |
a9d02ad4 SF |
1176 | const struct nls_table *nls_codepage, int remap) |
1177 | { | |
1178 | int rc = -EACCES; | |
1179 | OPENX_REQ *pSMB = NULL; | |
1180 | OPENX_RSP *pSMBr = NULL; | |
1181 | int bytes_returned; | |
1182 | int name_len; | |
1183 | __u16 count; | |
1184 | ||
1185 | OldOpenRetry: | |
1186 | rc = smb_init(SMB_COM_OPEN_ANDX, 15, tcon, (void **) &pSMB, | |
1187 | (void **) &pSMBr); | |
1188 | if (rc) | |
1189 | return rc; | |
1190 | ||
1191 | pSMB->AndXCommand = 0xFF; /* none */ | |
1192 | ||
1193 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1194 | count = 1; /* account for one byte pad to word boundary */ | |
1195 | name_len = | |
1196 | cifsConvertToUCS((__le16 *) (pSMB->fileName + 1), | |
1197 | fileName, PATH_MAX, nls_codepage, remap); | |
1198 | name_len++; /* trailing null */ | |
1199 | name_len *= 2; | |
1200 | } else { /* BB improve check for buffer overruns BB */ | |
1201 | count = 0; /* no pad */ | |
1202 | name_len = strnlen(fileName, PATH_MAX); | |
1203 | name_len++; /* trailing null */ | |
1204 | strncpy(pSMB->fileName, fileName, name_len); | |
1205 | } | |
1206 | if (*pOplock & REQ_OPLOCK) | |
1207 | pSMB->OpenFlags = cpu_to_le16(REQ_OPLOCK); | |
26f57364 | 1208 | else if (*pOplock & REQ_BATCHOPLOCK) |
a9d02ad4 | 1209 | pSMB->OpenFlags = cpu_to_le16(REQ_BATCHOPLOCK); |
26f57364 | 1210 | |
a9d02ad4 | 1211 | pSMB->OpenFlags |= cpu_to_le16(REQ_MORE_INFO); |
35fc37d5 | 1212 | pSMB->Mode = cpu_to_le16(access_flags_to_smbopen_mode(access_flags)); |
a9d02ad4 SF |
1213 | pSMB->Mode |= cpu_to_le16(0x40); /* deny none */ |
1214 | /* set file as system file if special file such | |
1215 | as fifo and server expecting SFU style and | |
1216 | no Unix extensions */ | |
1217 | ||
790fe579 SF |
1218 | if (create_options & CREATE_OPTION_SPECIAL) |
1219 | pSMB->FileAttributes = cpu_to_le16(ATTR_SYSTEM); | |
ad7a2926 SF |
1220 | else /* BB FIXME BB */ |
1221 | pSMB->FileAttributes = cpu_to_le16(0/*ATTR_NORMAL*/); | |
a9d02ad4 | 1222 | |
67750fb9 JL |
1223 | if (create_options & CREATE_OPTION_READONLY) |
1224 | pSMB->FileAttributes |= cpu_to_le16(ATTR_READONLY); | |
a9d02ad4 SF |
1225 | |
1226 | /* BB FIXME BB */ | |
50c2f753 SF |
1227 | /* pSMB->CreateOptions = cpu_to_le32(create_options & |
1228 | CREATE_OPTIONS_MASK); */ | |
a9d02ad4 | 1229 | /* BB FIXME END BB */ |
3e87d803 SF |
1230 | |
1231 | pSMB->Sattr = cpu_to_le16(ATTR_HIDDEN | ATTR_SYSTEM | ATTR_DIRECTORY); | |
70ca734a | 1232 | pSMB->OpenFunction = cpu_to_le16(convert_disposition(openDisposition)); |
a9d02ad4 SF |
1233 | count += name_len; |
1234 | pSMB->hdr.smb_buf_length += count; | |
1235 | ||
1236 | pSMB->ByteCount = cpu_to_le16(count); | |
1237 | /* long_op set to 1 to allow for oplock break timeouts */ | |
1238 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
133672ef | 1239 | (struct smb_hdr *)pSMBr, &bytes_returned, CIFS_LONG_OP); |
a9d02ad4 SF |
1240 | cifs_stats_inc(&tcon->num_opens); |
1241 | if (rc) { | |
1242 | cFYI(1, ("Error in Open = %d", rc)); | |
1243 | } else { | |
1244 | /* BB verify if wct == 15 */ | |
1245 | ||
582d21e5 | 1246 | /* *pOplock = pSMBr->OplockLevel; */ /* BB take from action field*/ |
a9d02ad4 SF |
1247 | |
1248 | *netfid = pSMBr->Fid; /* cifs fid stays in le */ | |
1249 | /* Let caller know file was created so we can set the mode. */ | |
1250 | /* Do we care about the CreateAction in any other cases? */ | |
1251 | /* BB FIXME BB */ | |
790fe579 | 1252 | /* if (cpu_to_le32(FILE_CREATE) == pSMBr->CreateAction) |
a9d02ad4 SF |
1253 | *pOplock |= CIFS_CREATE_ACTION; */ |
1254 | /* BB FIXME END */ | |
1255 | ||
790fe579 | 1256 | if (pfile_info) { |
a9d02ad4 SF |
1257 | pfile_info->CreationTime = 0; /* BB convert CreateTime*/ |
1258 | pfile_info->LastAccessTime = 0; /* BB fixme */ | |
1259 | pfile_info->LastWriteTime = 0; /* BB fixme */ | |
1260 | pfile_info->ChangeTime = 0; /* BB fixme */ | |
70ca734a | 1261 | pfile_info->Attributes = |
50c2f753 | 1262 | cpu_to_le32(le16_to_cpu(pSMBr->FileAttributes)); |
a9d02ad4 | 1263 | /* the file_info buf is endian converted by caller */ |
70ca734a SF |
1264 | pfile_info->AllocationSize = |
1265 | cpu_to_le64(le32_to_cpu(pSMBr->EndOfFile)); | |
1266 | pfile_info->EndOfFile = pfile_info->AllocationSize; | |
a9d02ad4 | 1267 | pfile_info->NumberOfLinks = cpu_to_le32(1); |
9a8165fc | 1268 | pfile_info->DeletePending = 0; |
a9d02ad4 SF |
1269 | } |
1270 | } | |
1271 | ||
1272 | cifs_buf_release(pSMB); | |
1273 | if (rc == -EAGAIN) | |
1274 | goto OldOpenRetry; | |
1275 | return rc; | |
1276 | } | |
1277 | ||
1da177e4 LT |
1278 | int |
1279 | CIFSSMBOpen(const int xid, struct cifsTconInfo *tcon, | |
1280 | const char *fileName, const int openDisposition, | |
ad7a2926 SF |
1281 | const int access_flags, const int create_options, __u16 *netfid, |
1282 | int *pOplock, FILE_ALL_INFO *pfile_info, | |
737b758c | 1283 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
1284 | { |
1285 | int rc = -EACCES; | |
1286 | OPEN_REQ *pSMB = NULL; | |
1287 | OPEN_RSP *pSMBr = NULL; | |
1288 | int bytes_returned; | |
1289 | int name_len; | |
1290 | __u16 count; | |
1291 | ||
1292 | openRetry: | |
1293 | rc = smb_init(SMB_COM_NT_CREATE_ANDX, 24, tcon, (void **) &pSMB, | |
1294 | (void **) &pSMBr); | |
1295 | if (rc) | |
1296 | return rc; | |
1297 | ||
1298 | pSMB->AndXCommand = 0xFF; /* none */ | |
1299 | ||
1300 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1301 | count = 1; /* account for one byte pad to word boundary */ | |
1302 | name_len = | |
b1a45695 | 1303 | cifsConvertToUCS((__le16 *) (pSMB->fileName + 1), |
737b758c | 1304 | fileName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1305 | name_len++; /* trailing null */ |
1306 | name_len *= 2; | |
1307 | pSMB->NameLength = cpu_to_le16(name_len); | |
09d1db5c | 1308 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
1309 | count = 0; /* no pad */ |
1310 | name_len = strnlen(fileName, PATH_MAX); | |
1311 | name_len++; /* trailing null */ | |
1312 | pSMB->NameLength = cpu_to_le16(name_len); | |
1313 | strncpy(pSMB->fileName, fileName, name_len); | |
1314 | } | |
1315 | if (*pOplock & REQ_OPLOCK) | |
1316 | pSMB->OpenFlags = cpu_to_le32(REQ_OPLOCK); | |
26f57364 | 1317 | else if (*pOplock & REQ_BATCHOPLOCK) |
1da177e4 | 1318 | pSMB->OpenFlags = cpu_to_le32(REQ_BATCHOPLOCK); |
1da177e4 LT |
1319 | pSMB->DesiredAccess = cpu_to_le32(access_flags); |
1320 | pSMB->AllocationSize = 0; | |
eda3c029 SF |
1321 | /* set file as system file if special file such |
1322 | as fifo and server expecting SFU style and | |
1323 | no Unix extensions */ | |
790fe579 | 1324 | if (create_options & CREATE_OPTION_SPECIAL) |
eda3c029 SF |
1325 | pSMB->FileAttributes = cpu_to_le32(ATTR_SYSTEM); |
1326 | else | |
1327 | pSMB->FileAttributes = cpu_to_le32(ATTR_NORMAL); | |
67750fb9 | 1328 | |
1da177e4 LT |
1329 | /* XP does not handle ATTR_POSIX_SEMANTICS */ |
1330 | /* but it helps speed up case sensitive checks for other | |
1331 | servers such as Samba */ | |
1332 | if (tcon->ses->capabilities & CAP_UNIX) | |
1333 | pSMB->FileAttributes |= cpu_to_le32(ATTR_POSIX_SEMANTICS); | |
1334 | ||
67750fb9 JL |
1335 | if (create_options & CREATE_OPTION_READONLY) |
1336 | pSMB->FileAttributes |= cpu_to_le32(ATTR_READONLY); | |
1337 | ||
1da177e4 LT |
1338 | pSMB->ShareAccess = cpu_to_le32(FILE_SHARE_ALL); |
1339 | pSMB->CreateDisposition = cpu_to_le32(openDisposition); | |
eda3c029 | 1340 | pSMB->CreateOptions = cpu_to_le32(create_options & CREATE_OPTIONS_MASK); |
09d1db5c SF |
1341 | /* BB Expirement with various impersonation levels and verify */ |
1342 | pSMB->ImpersonationLevel = cpu_to_le32(SECURITY_IMPERSONATION); | |
1da177e4 LT |
1343 | pSMB->SecurityFlags = |
1344 | SECURITY_CONTEXT_TRACKING | SECURITY_EFFECTIVE_ONLY; | |
1345 | ||
1346 | count += name_len; | |
1347 | pSMB->hdr.smb_buf_length += count; | |
1348 | ||
1349 | pSMB->ByteCount = cpu_to_le16(count); | |
1350 | /* long_op set to 1 to allow for oplock break timeouts */ | |
1351 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
133672ef | 1352 | (struct smb_hdr *)pSMBr, &bytes_returned, CIFS_LONG_OP); |
a4544347 | 1353 | cifs_stats_inc(&tcon->num_opens); |
1da177e4 LT |
1354 | if (rc) { |
1355 | cFYI(1, ("Error in Open = %d", rc)); | |
1356 | } else { | |
09d1db5c | 1357 | *pOplock = pSMBr->OplockLevel; /* 1 byte no need to le_to_cpu */ |
1da177e4 LT |
1358 | *netfid = pSMBr->Fid; /* cifs fid stays in le */ |
1359 | /* Let caller know file was created so we can set the mode. */ | |
1360 | /* Do we care about the CreateAction in any other cases? */ | |
790fe579 | 1361 | if (cpu_to_le32(FILE_CREATE) == pSMBr->CreateAction) |
50c2f753 | 1362 | *pOplock |= CIFS_CREATE_ACTION; |
790fe579 | 1363 | if (pfile_info) { |
61e74801 SF |
1364 | memcpy((char *)pfile_info, (char *)&pSMBr->CreationTime, |
1365 | 36 /* CreationTime to Attributes */); | |
1366 | /* the file_info buf is endian converted by caller */ | |
1367 | pfile_info->AllocationSize = pSMBr->AllocationSize; | |
1368 | pfile_info->EndOfFile = pSMBr->EndOfFile; | |
1369 | pfile_info->NumberOfLinks = cpu_to_le32(1); | |
1370 | pfile_info->DeletePending = 0; | |
1da177e4 | 1371 | } |
1da177e4 | 1372 | } |
a5a2b489 | 1373 | |
1da177e4 LT |
1374 | cifs_buf_release(pSMB); |
1375 | if (rc == -EAGAIN) | |
1376 | goto openRetry; | |
1377 | return rc; | |
1378 | } | |
1379 | ||
1da177e4 | 1380 | int |
50c2f753 SF |
1381 | CIFSSMBRead(const int xid, struct cifsTconInfo *tcon, const int netfid, |
1382 | const unsigned int count, const __u64 lseek, unsigned int *nbytes, | |
1383 | char **buf, int *pbuf_type) | |
1da177e4 LT |
1384 | { |
1385 | int rc = -EACCES; | |
1386 | READ_REQ *pSMB = NULL; | |
1387 | READ_RSP *pSMBr = NULL; | |
1388 | char *pReadData = NULL; | |
bfa0d75a | 1389 | int wct; |
ec637e3f SF |
1390 | int resp_buf_type = 0; |
1391 | struct kvec iov[1]; | |
1da177e4 | 1392 | |
790fe579 SF |
1393 | cFYI(1, ("Reading %d bytes on fid %d", count, netfid)); |
1394 | if (tcon->ses->capabilities & CAP_LARGE_FILES) | |
bfa0d75a | 1395 | wct = 12; |
4c3130ef | 1396 | else { |
bfa0d75a | 1397 | wct = 10; /* old style read */ |
4c3130ef SF |
1398 | if ((lseek >> 32) > 0) { |
1399 | /* can not handle this big offset for old */ | |
1400 | return -EIO; | |
1401 | } | |
1402 | } | |
1da177e4 LT |
1403 | |
1404 | *nbytes = 0; | |
ec637e3f | 1405 | rc = small_smb_init(SMB_COM_READ_ANDX, wct, tcon, (void **) &pSMB); |
1da177e4 LT |
1406 | if (rc) |
1407 | return rc; | |
1408 | ||
1409 | /* tcon and ses pointer are checked in smb_init */ | |
1410 | if (tcon->ses->server == NULL) | |
1411 | return -ECONNABORTED; | |
1412 | ||
ec637e3f | 1413 | pSMB->AndXCommand = 0xFF; /* none */ |
1da177e4 LT |
1414 | pSMB->Fid = netfid; |
1415 | pSMB->OffsetLow = cpu_to_le32(lseek & 0xFFFFFFFF); | |
790fe579 | 1416 | if (wct == 12) |
bfa0d75a | 1417 | pSMB->OffsetHigh = cpu_to_le32(lseek >> 32); |
bfa0d75a | 1418 | |
1da177e4 LT |
1419 | pSMB->Remaining = 0; |
1420 | pSMB->MaxCount = cpu_to_le16(count & 0xFFFF); | |
1421 | pSMB->MaxCountHigh = cpu_to_le32(count >> 16); | |
790fe579 | 1422 | if (wct == 12) |
bfa0d75a SF |
1423 | pSMB->ByteCount = 0; /* no need to do le conversion since 0 */ |
1424 | else { | |
1425 | /* old style read */ | |
50c2f753 | 1426 | struct smb_com_readx_req *pSMBW = |
bfa0d75a | 1427 | (struct smb_com_readx_req *)pSMB; |
ec637e3f | 1428 | pSMBW->ByteCount = 0; |
bfa0d75a | 1429 | } |
ec637e3f SF |
1430 | |
1431 | iov[0].iov_base = (char *)pSMB; | |
1432 | iov[0].iov_len = pSMB->hdr.smb_buf_length + 4; | |
a761ac57 | 1433 | rc = SendReceive2(xid, tcon->ses, iov, 1 /* num iovecs */, |
133672ef | 1434 | &resp_buf_type, CIFS_STD_OP | CIFS_LOG_ERROR); |
a4544347 | 1435 | cifs_stats_inc(&tcon->num_reads); |
ec637e3f | 1436 | pSMBr = (READ_RSP *)iov[0].iov_base; |
1da177e4 LT |
1437 | if (rc) { |
1438 | cERROR(1, ("Send error in read = %d", rc)); | |
1439 | } else { | |
1440 | int data_length = le16_to_cpu(pSMBr->DataLengthHigh); | |
1441 | data_length = data_length << 16; | |
1442 | data_length += le16_to_cpu(pSMBr->DataLength); | |
1443 | *nbytes = data_length; | |
1444 | ||
1445 | /*check that DataLength would not go beyond end of SMB */ | |
ec637e3f | 1446 | if ((data_length > CIFSMaxBufSize) |
1da177e4 | 1447 | || (data_length > count)) { |
50c2f753 SF |
1448 | cFYI(1, ("bad length %d for count %d", |
1449 | data_length, count)); | |
1da177e4 LT |
1450 | rc = -EIO; |
1451 | *nbytes = 0; | |
1452 | } else { | |
ec637e3f | 1453 | pReadData = (char *) (&pSMBr->hdr.Protocol) + |
26f57364 SF |
1454 | le16_to_cpu(pSMBr->DataOffset); |
1455 | /* if (rc = copy_to_user(buf, pReadData, data_length)) { | |
50c2f753 SF |
1456 | cERROR(1,("Faulting on read rc = %d",rc)); |
1457 | rc = -EFAULT; | |
26f57364 | 1458 | }*/ /* can not use copy_to_user when using page cache*/ |
790fe579 | 1459 | if (*buf) |
50c2f753 | 1460 | memcpy(*buf, pReadData, data_length); |
1da177e4 LT |
1461 | } |
1462 | } | |
1da177e4 | 1463 | |
4b8f930f | 1464 | /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */ |
790fe579 SF |
1465 | if (*buf) { |
1466 | if (resp_buf_type == CIFS_SMALL_BUFFER) | |
ec637e3f | 1467 | cifs_small_buf_release(iov[0].iov_base); |
790fe579 | 1468 | else if (resp_buf_type == CIFS_LARGE_BUFFER) |
ec637e3f | 1469 | cifs_buf_release(iov[0].iov_base); |
790fe579 | 1470 | } else if (resp_buf_type != CIFS_NO_BUFFER) { |
50c2f753 SF |
1471 | /* return buffer to caller to free */ |
1472 | *buf = iov[0].iov_base; | |
790fe579 | 1473 | if (resp_buf_type == CIFS_SMALL_BUFFER) |
ec637e3f | 1474 | *pbuf_type = CIFS_SMALL_BUFFER; |
790fe579 | 1475 | else if (resp_buf_type == CIFS_LARGE_BUFFER) |
ec637e3f | 1476 | *pbuf_type = CIFS_LARGE_BUFFER; |
6cec2aed | 1477 | } /* else no valid buffer on return - leave as null */ |
ec637e3f SF |
1478 | |
1479 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
1da177e4 LT |
1480 | since file handle passed in no longer valid */ |
1481 | return rc; | |
1482 | } | |
1483 | ||
ec637e3f | 1484 | |
1da177e4 LT |
1485 | int |
1486 | CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon, | |
1487 | const int netfid, const unsigned int count, | |
1488 | const __u64 offset, unsigned int *nbytes, const char *buf, | |
50c2f753 | 1489 | const char __user *ubuf, const int long_op) |
1da177e4 LT |
1490 | { |
1491 | int rc = -EACCES; | |
1492 | WRITE_REQ *pSMB = NULL; | |
1493 | WRITE_RSP *pSMBr = NULL; | |
1c955187 | 1494 | int bytes_returned, wct; |
1da177e4 LT |
1495 | __u32 bytes_sent; |
1496 | __u16 byte_count; | |
1497 | ||
61de800d | 1498 | /* cFYI(1, ("write at %lld %d bytes", offset, count));*/ |
790fe579 | 1499 | if (tcon->ses == NULL) |
1c955187 SF |
1500 | return -ECONNABORTED; |
1501 | ||
790fe579 | 1502 | if (tcon->ses->capabilities & CAP_LARGE_FILES) |
1c955187 | 1503 | wct = 14; |
4c3130ef | 1504 | else { |
1c955187 | 1505 | wct = 12; |
4c3130ef SF |
1506 | if ((offset >> 32) > 0) { |
1507 | /* can not handle big offset for old srv */ | |
1508 | return -EIO; | |
1509 | } | |
1510 | } | |
1c955187 SF |
1511 | |
1512 | rc = smb_init(SMB_COM_WRITE_ANDX, wct, tcon, (void **) &pSMB, | |
1da177e4 LT |
1513 | (void **) &pSMBr); |
1514 | if (rc) | |
1515 | return rc; | |
1516 | /* tcon and ses pointer are checked in smb_init */ | |
1517 | if (tcon->ses->server == NULL) | |
1518 | return -ECONNABORTED; | |
1519 | ||
1520 | pSMB->AndXCommand = 0xFF; /* none */ | |
1521 | pSMB->Fid = netfid; | |
1522 | pSMB->OffsetLow = cpu_to_le32(offset & 0xFFFFFFFF); | |
790fe579 | 1523 | if (wct == 14) |
1c955187 | 1524 | pSMB->OffsetHigh = cpu_to_le32(offset >> 32); |
50c2f753 | 1525 | |
1da177e4 LT |
1526 | pSMB->Reserved = 0xFFFFFFFF; |
1527 | pSMB->WriteMode = 0; | |
1528 | pSMB->Remaining = 0; | |
1529 | ||
50c2f753 | 1530 | /* Can increase buffer size if buffer is big enough in some cases ie we |
1da177e4 LT |
1531 | can send more if LARGE_WRITE_X capability returned by the server and if |
1532 | our buffer is big enough or if we convert to iovecs on socket writes | |
1533 | and eliminate the copy to the CIFS buffer */ | |
790fe579 | 1534 | if (tcon->ses->capabilities & CAP_LARGE_WRITE_X) { |
1da177e4 LT |
1535 | bytes_sent = min_t(const unsigned int, CIFSMaxBufSize, count); |
1536 | } else { | |
1537 | bytes_sent = (tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) | |
1538 | & ~0xFF; | |
1539 | } | |
1540 | ||
1541 | if (bytes_sent > count) | |
1542 | bytes_sent = count; | |
1543 | pSMB->DataOffset = | |
50c2f753 | 1544 | cpu_to_le16(offsetof(struct smb_com_write_req, Data) - 4); |
790fe579 | 1545 | if (buf) |
61e74801 | 1546 | memcpy(pSMB->Data, buf, bytes_sent); |
790fe579 SF |
1547 | else if (ubuf) { |
1548 | if (copy_from_user(pSMB->Data, ubuf, bytes_sent)) { | |
1da177e4 LT |
1549 | cifs_buf_release(pSMB); |
1550 | return -EFAULT; | |
1551 | } | |
e30dcf3a | 1552 | } else if (count != 0) { |
1da177e4 LT |
1553 | /* No buffer */ |
1554 | cifs_buf_release(pSMB); | |
1555 | return -EINVAL; | |
e30dcf3a | 1556 | } /* else setting file size with write of zero bytes */ |
790fe579 | 1557 | if (wct == 14) |
e30dcf3a | 1558 | byte_count = bytes_sent + 1; /* pad */ |
ad7a2926 | 1559 | else /* wct == 12 */ |
e30dcf3a | 1560 | byte_count = bytes_sent + 5; /* bigger pad, smaller smb hdr */ |
ad7a2926 | 1561 | |
1da177e4 LT |
1562 | pSMB->DataLengthLow = cpu_to_le16(bytes_sent & 0xFFFF); |
1563 | pSMB->DataLengthHigh = cpu_to_le16(bytes_sent >> 16); | |
e30dcf3a | 1564 | pSMB->hdr.smb_buf_length += byte_count; |
1c955187 | 1565 | |
790fe579 | 1566 | if (wct == 14) |
1c955187 | 1567 | pSMB->ByteCount = cpu_to_le16(byte_count); |
50c2f753 SF |
1568 | else { /* old style write has byte count 4 bytes earlier |
1569 | so 4 bytes pad */ | |
1570 | struct smb_com_writex_req *pSMBW = | |
1c955187 SF |
1571 | (struct smb_com_writex_req *)pSMB; |
1572 | pSMBW->ByteCount = cpu_to_le16(byte_count); | |
1573 | } | |
1da177e4 LT |
1574 | |
1575 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1576 | (struct smb_hdr *) pSMBr, &bytes_returned, long_op); | |
a4544347 | 1577 | cifs_stats_inc(&tcon->num_writes); |
1da177e4 LT |
1578 | if (rc) { |
1579 | cFYI(1, ("Send error in write = %d", rc)); | |
1580 | *nbytes = 0; | |
1581 | } else { | |
1582 | *nbytes = le16_to_cpu(pSMBr->CountHigh); | |
1583 | *nbytes = (*nbytes) << 16; | |
1584 | *nbytes += le16_to_cpu(pSMBr->Count); | |
1585 | } | |
1586 | ||
1587 | cifs_buf_release(pSMB); | |
1588 | ||
50c2f753 | 1589 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
1da177e4 LT |
1590 | since file handle passed in no longer valid */ |
1591 | ||
1592 | return rc; | |
1593 | } | |
1594 | ||
d6e04ae6 SF |
1595 | int |
1596 | CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon, | |
1da177e4 | 1597 | const int netfid, const unsigned int count, |
3e84469d SF |
1598 | const __u64 offset, unsigned int *nbytes, struct kvec *iov, |
1599 | int n_vec, const int long_op) | |
1da177e4 LT |
1600 | { |
1601 | int rc = -EACCES; | |
1602 | WRITE_REQ *pSMB = NULL; | |
ec637e3f | 1603 | int wct; |
d6e04ae6 | 1604 | int smb_hdr_len; |
ec637e3f | 1605 | int resp_buf_type = 0; |
1da177e4 | 1606 | |
fbec9ab9 JL |
1607 | *nbytes = 0; |
1608 | ||
790fe579 | 1609 | cFYI(1, ("write2 at %lld %d bytes", (long long)offset, count)); |
ff7feac9 | 1610 | |
4c3130ef | 1611 | if (tcon->ses->capabilities & CAP_LARGE_FILES) { |
8cc64c6e | 1612 | wct = 14; |
4c3130ef | 1613 | } else { |
8cc64c6e | 1614 | wct = 12; |
4c3130ef SF |
1615 | if ((offset >> 32) > 0) { |
1616 | /* can not handle big offset for old srv */ | |
1617 | return -EIO; | |
1618 | } | |
1619 | } | |
8cc64c6e | 1620 | rc = small_smb_init(SMB_COM_WRITE_ANDX, wct, tcon, (void **) &pSMB); |
1da177e4 LT |
1621 | if (rc) |
1622 | return rc; | |
1da177e4 LT |
1623 | /* tcon and ses pointer are checked in smb_init */ |
1624 | if (tcon->ses->server == NULL) | |
1625 | return -ECONNABORTED; | |
1626 | ||
d6e04ae6 | 1627 | pSMB->AndXCommand = 0xFF; /* none */ |
1da177e4 LT |
1628 | pSMB->Fid = netfid; |
1629 | pSMB->OffsetLow = cpu_to_le32(offset & 0xFFFFFFFF); | |
790fe579 | 1630 | if (wct == 14) |
8cc64c6e | 1631 | pSMB->OffsetHigh = cpu_to_le32(offset >> 32); |
1da177e4 LT |
1632 | pSMB->Reserved = 0xFFFFFFFF; |
1633 | pSMB->WriteMode = 0; | |
1634 | pSMB->Remaining = 0; | |
d6e04ae6 | 1635 | |
1da177e4 | 1636 | pSMB->DataOffset = |
50c2f753 | 1637 | cpu_to_le16(offsetof(struct smb_com_write_req, Data) - 4); |
1da177e4 | 1638 | |
3e84469d SF |
1639 | pSMB->DataLengthLow = cpu_to_le16(count & 0xFFFF); |
1640 | pSMB->DataLengthHigh = cpu_to_le16(count >> 16); | |
d6e04ae6 | 1641 | smb_hdr_len = pSMB->hdr.smb_buf_length + 1; /* hdr + 1 byte pad */ |
790fe579 | 1642 | if (wct == 14) |
8cc64c6e SF |
1643 | pSMB->hdr.smb_buf_length += count+1; |
1644 | else /* wct == 12 */ | |
790fe579 SF |
1645 | pSMB->hdr.smb_buf_length += count+5; /* smb data starts later */ |
1646 | if (wct == 14) | |
8cc64c6e SF |
1647 | pSMB->ByteCount = cpu_to_le16(count + 1); |
1648 | else /* wct == 12 */ /* bigger pad, smaller smb hdr, keep offset ok */ { | |
50c2f753 | 1649 | struct smb_com_writex_req *pSMBW = |
8cc64c6e SF |
1650 | (struct smb_com_writex_req *)pSMB; |
1651 | pSMBW->ByteCount = cpu_to_le16(count + 5); | |
1652 | } | |
3e84469d | 1653 | iov[0].iov_base = pSMB; |
790fe579 | 1654 | if (wct == 14) |
ec637e3f SF |
1655 | iov[0].iov_len = smb_hdr_len + 4; |
1656 | else /* wct == 12 pad bigger by four bytes */ | |
1657 | iov[0].iov_len = smb_hdr_len + 8; | |
50c2f753 | 1658 | |
1da177e4 | 1659 | |
ec637e3f | 1660 | rc = SendReceive2(xid, tcon->ses, iov, n_vec + 1, &resp_buf_type, |
133672ef | 1661 | long_op); |
a4544347 | 1662 | cifs_stats_inc(&tcon->num_writes); |
1da177e4 | 1663 | if (rc) { |
8cc64c6e | 1664 | cFYI(1, ("Send error Write2 = %d", rc)); |
790fe579 | 1665 | } else if (resp_buf_type == 0) { |
ec637e3f SF |
1666 | /* presumably this can not happen, but best to be safe */ |
1667 | rc = -EIO; | |
d6e04ae6 | 1668 | } else { |
ad7a2926 | 1669 | WRITE_RSP *pSMBr = (WRITE_RSP *)iov[0].iov_base; |
d6e04ae6 SF |
1670 | *nbytes = le16_to_cpu(pSMBr->CountHigh); |
1671 | *nbytes = (*nbytes) << 16; | |
1672 | *nbytes += le16_to_cpu(pSMBr->Count); | |
50c2f753 | 1673 | } |
1da177e4 | 1674 | |
4b8f930f | 1675 | /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */ |
790fe579 | 1676 | if (resp_buf_type == CIFS_SMALL_BUFFER) |
ec637e3f | 1677 | cifs_small_buf_release(iov[0].iov_base); |
790fe579 | 1678 | else if (resp_buf_type == CIFS_LARGE_BUFFER) |
ec637e3f | 1679 | cifs_buf_release(iov[0].iov_base); |
1da177e4 | 1680 | |
50c2f753 | 1681 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
1da177e4 LT |
1682 | since file handle passed in no longer valid */ |
1683 | ||
1684 | return rc; | |
1685 | } | |
d6e04ae6 SF |
1686 | |
1687 | ||
1da177e4 LT |
1688 | int |
1689 | CIFSSMBLock(const int xid, struct cifsTconInfo *tcon, | |
1690 | const __u16 smb_file_id, const __u64 len, | |
1691 | const __u64 offset, const __u32 numUnlock, | |
4b18f2a9 | 1692 | const __u32 numLock, const __u8 lockType, const bool waitFlag) |
1da177e4 LT |
1693 | { |
1694 | int rc = 0; | |
1695 | LOCK_REQ *pSMB = NULL; | |
aaa9bbe0 | 1696 | /* LOCK_RSP *pSMBr = NULL; */ /* No response data other than rc to parse */ |
1da177e4 LT |
1697 | int bytes_returned; |
1698 | int timeout = 0; | |
1699 | __u16 count; | |
1700 | ||
4b18f2a9 | 1701 | cFYI(1, ("CIFSSMBLock timeout %d numLock %d", (int)waitFlag, numLock)); |
46810cbf SF |
1702 | rc = small_smb_init(SMB_COM_LOCKING_ANDX, 8, tcon, (void **) &pSMB); |
1703 | ||
1da177e4 LT |
1704 | if (rc) |
1705 | return rc; | |
1706 | ||
790fe579 | 1707 | if (lockType == LOCKING_ANDX_OPLOCK_RELEASE) { |
133672ef | 1708 | timeout = CIFS_ASYNC_OP; /* no response expected */ |
1da177e4 | 1709 | pSMB->Timeout = 0; |
4b18f2a9 | 1710 | } else if (waitFlag) { |
133672ef | 1711 | timeout = CIFS_BLOCKING_OP; /* blocking operation, no timeout */ |
1da177e4 LT |
1712 | pSMB->Timeout = cpu_to_le32(-1);/* blocking - do not time out */ |
1713 | } else { | |
1714 | pSMB->Timeout = 0; | |
1715 | } | |
1716 | ||
1717 | pSMB->NumberOfLocks = cpu_to_le16(numLock); | |
1718 | pSMB->NumberOfUnlocks = cpu_to_le16(numUnlock); | |
1719 | pSMB->LockType = lockType; | |
1720 | pSMB->AndXCommand = 0xFF; /* none */ | |
1721 | pSMB->Fid = smb_file_id; /* netfid stays le */ | |
1722 | ||
790fe579 | 1723 | if ((numLock != 0) || (numUnlock != 0)) { |
1da177e4 LT |
1724 | pSMB->Locks[0].Pid = cpu_to_le16(current->tgid); |
1725 | /* BB where to store pid high? */ | |
1726 | pSMB->Locks[0].LengthLow = cpu_to_le32((u32)len); | |
1727 | pSMB->Locks[0].LengthHigh = cpu_to_le32((u32)(len>>32)); | |
1728 | pSMB->Locks[0].OffsetLow = cpu_to_le32((u32)offset); | |
1729 | pSMB->Locks[0].OffsetHigh = cpu_to_le32((u32)(offset>>32)); | |
1730 | count = sizeof(LOCKING_ANDX_RANGE); | |
1731 | } else { | |
1732 | /* oplock break */ | |
1733 | count = 0; | |
1734 | } | |
1735 | pSMB->hdr.smb_buf_length += count; | |
1736 | pSMB->ByteCount = cpu_to_le16(count); | |
1737 | ||
7ee1af76 JA |
1738 | if (waitFlag) { |
1739 | rc = SendReceiveBlockingLock(xid, tcon, (struct smb_hdr *) pSMB, | |
aaa9bbe0 | 1740 | (struct smb_hdr *) pSMB, &bytes_returned); |
133672ef | 1741 | cifs_small_buf_release(pSMB); |
7ee1af76 | 1742 | } else { |
133672ef SF |
1743 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *)pSMB, |
1744 | timeout); | |
1745 | /* SMB buffer freed by function above */ | |
7ee1af76 | 1746 | } |
a4544347 | 1747 | cifs_stats_inc(&tcon->num_locks); |
ad7a2926 | 1748 | if (rc) |
1da177e4 | 1749 | cFYI(1, ("Send error in Lock = %d", rc)); |
1da177e4 | 1750 | |
50c2f753 | 1751 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
1da177e4 LT |
1752 | since file handle passed in no longer valid */ |
1753 | return rc; | |
1754 | } | |
1755 | ||
08547b03 SF |
1756 | int |
1757 | CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon, | |
1758 | const __u16 smb_file_id, const int get_flag, const __u64 len, | |
50c2f753 | 1759 | struct file_lock *pLockData, const __u16 lock_type, |
4b18f2a9 | 1760 | const bool waitFlag) |
08547b03 SF |
1761 | { |
1762 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
1763 | struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; | |
08547b03 SF |
1764 | struct cifs_posix_lock *parm_data; |
1765 | int rc = 0; | |
3a5ff61c | 1766 | int timeout = 0; |
08547b03 | 1767 | int bytes_returned = 0; |
133672ef | 1768 | int resp_buf_type = 0; |
08547b03 | 1769 | __u16 params, param_offset, offset, byte_count, count; |
133672ef | 1770 | struct kvec iov[1]; |
08547b03 SF |
1771 | |
1772 | cFYI(1, ("Posix Lock")); | |
fc94cdb9 | 1773 | |
790fe579 | 1774 | if (pLockData == NULL) |
ed5f0370 | 1775 | return -EINVAL; |
fc94cdb9 | 1776 | |
08547b03 SF |
1777 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
1778 | ||
1779 | if (rc) | |
1780 | return rc; | |
1781 | ||
1782 | pSMBr = (struct smb_com_transaction2_sfi_rsp *)pSMB; | |
1783 | ||
50c2f753 | 1784 | params = 6; |
08547b03 SF |
1785 | pSMB->MaxSetupCount = 0; |
1786 | pSMB->Reserved = 0; | |
1787 | pSMB->Flags = 0; | |
08547b03 SF |
1788 | pSMB->Reserved2 = 0; |
1789 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
1790 | offset = param_offset + params; | |
1791 | ||
08547b03 SF |
1792 | count = sizeof(struct cifs_posix_lock); |
1793 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
ad7a2926 | 1794 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB from sess */ |
08547b03 SF |
1795 | pSMB->SetupCount = 1; |
1796 | pSMB->Reserved3 = 0; | |
790fe579 | 1797 | if (get_flag) |
08547b03 SF |
1798 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FILE_INFORMATION); |
1799 | else | |
1800 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
1801 | byte_count = 3 /* pad */ + params + count; | |
1802 | pSMB->DataCount = cpu_to_le16(count); | |
1803 | pSMB->ParameterCount = cpu_to_le16(params); | |
1804 | pSMB->TotalDataCount = pSMB->DataCount; | |
1805 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
1806 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
50c2f753 | 1807 | parm_data = (struct cifs_posix_lock *) |
08547b03 SF |
1808 | (((char *) &pSMB->hdr.Protocol) + offset); |
1809 | ||
1810 | parm_data->lock_type = cpu_to_le16(lock_type); | |
790fe579 | 1811 | if (waitFlag) { |
133672ef | 1812 | timeout = CIFS_BLOCKING_OP; /* blocking operation, no timeout */ |
cec6815a | 1813 | parm_data->lock_flags = cpu_to_le16(1); |
3a5ff61c SF |
1814 | pSMB->Timeout = cpu_to_le32(-1); |
1815 | } else | |
1816 | pSMB->Timeout = 0; | |
1817 | ||
08547b03 | 1818 | parm_data->pid = cpu_to_le32(current->tgid); |
fc94cdb9 | 1819 | parm_data->start = cpu_to_le64(pLockData->fl_start); |
cec6815a | 1820 | parm_data->length = cpu_to_le64(len); /* normalize negative numbers */ |
08547b03 SF |
1821 | |
1822 | pSMB->DataOffset = cpu_to_le16(offset); | |
f26282c9 | 1823 | pSMB->Fid = smb_file_id; |
08547b03 SF |
1824 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_POSIX_LOCK); |
1825 | pSMB->Reserved4 = 0; | |
1826 | pSMB->hdr.smb_buf_length += byte_count; | |
1827 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
7ee1af76 JA |
1828 | if (waitFlag) { |
1829 | rc = SendReceiveBlockingLock(xid, tcon, (struct smb_hdr *) pSMB, | |
1830 | (struct smb_hdr *) pSMBr, &bytes_returned); | |
1831 | } else { | |
133672ef SF |
1832 | iov[0].iov_base = (char *)pSMB; |
1833 | iov[0].iov_len = pSMB->hdr.smb_buf_length + 4; | |
1834 | rc = SendReceive2(xid, tcon->ses, iov, 1 /* num iovecs */, | |
1835 | &resp_buf_type, timeout); | |
1836 | pSMB = NULL; /* request buf already freed by SendReceive2. Do | |
1837 | not try to free it twice below on exit */ | |
1838 | pSMBr = (struct smb_com_transaction2_sfi_rsp *)iov[0].iov_base; | |
7ee1af76 JA |
1839 | } |
1840 | ||
08547b03 SF |
1841 | if (rc) { |
1842 | cFYI(1, ("Send error in Posix Lock = %d", rc)); | |
fc94cdb9 SF |
1843 | } else if (get_flag) { |
1844 | /* lock structure can be returned on get */ | |
1845 | __u16 data_offset; | |
1846 | __u16 data_count; | |
1847 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
1848 | ||
1849 | if (rc || (pSMBr->ByteCount < sizeof(struct cifs_posix_lock))) { | |
1850 | rc = -EIO; /* bad smb */ | |
1851 | goto plk_err_exit; | |
1852 | } | |
fc94cdb9 SF |
1853 | data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
1854 | data_count = le16_to_cpu(pSMBr->t2.DataCount); | |
790fe579 | 1855 | if (data_count < sizeof(struct cifs_posix_lock)) { |
fc94cdb9 SF |
1856 | rc = -EIO; |
1857 | goto plk_err_exit; | |
1858 | } | |
1859 | parm_data = (struct cifs_posix_lock *) | |
1860 | ((char *)&pSMBr->hdr.Protocol + data_offset); | |
790fe579 | 1861 | if (parm_data->lock_type == cpu_to_le16(CIFS_UNLCK)) |
fc94cdb9 | 1862 | pLockData->fl_type = F_UNLCK; |
08547b03 | 1863 | } |
50c2f753 | 1864 | |
fc94cdb9 | 1865 | plk_err_exit: |
08547b03 SF |
1866 | if (pSMB) |
1867 | cifs_small_buf_release(pSMB); | |
1868 | ||
133672ef SF |
1869 | if (resp_buf_type == CIFS_SMALL_BUFFER) |
1870 | cifs_small_buf_release(iov[0].iov_base); | |
1871 | else if (resp_buf_type == CIFS_LARGE_BUFFER) | |
1872 | cifs_buf_release(iov[0].iov_base); | |
1873 | ||
08547b03 SF |
1874 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
1875 | since file handle passed in no longer valid */ | |
1876 | ||
1877 | return rc; | |
1878 | } | |
1879 | ||
1880 | ||
1da177e4 LT |
1881 | int |
1882 | CIFSSMBClose(const int xid, struct cifsTconInfo *tcon, int smb_file_id) | |
1883 | { | |
1884 | int rc = 0; | |
1885 | CLOSE_REQ *pSMB = NULL; | |
1da177e4 LT |
1886 | cFYI(1, ("In CIFSSMBClose")); |
1887 | ||
1888 | /* do not retry on dead session on close */ | |
1889 | rc = small_smb_init(SMB_COM_CLOSE, 3, tcon, (void **) &pSMB); | |
790fe579 | 1890 | if (rc == -EAGAIN) |
1da177e4 LT |
1891 | return 0; |
1892 | if (rc) | |
1893 | return rc; | |
1894 | ||
1da177e4 | 1895 | pSMB->FileID = (__u16) smb_file_id; |
b815f1e5 | 1896 | pSMB->LastWriteTime = 0xFFFFFFFF; |
1da177e4 | 1897 | pSMB->ByteCount = 0; |
133672ef | 1898 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); |
a4544347 | 1899 | cifs_stats_inc(&tcon->num_closes); |
1da177e4 | 1900 | if (rc) { |
790fe579 | 1901 | if (rc != -EINTR) { |
1da177e4 LT |
1902 | /* EINTR is expected when user ctl-c to kill app */ |
1903 | cERROR(1, ("Send error in Close = %d", rc)); | |
1904 | } | |
1905 | } | |
1906 | ||
1da177e4 | 1907 | /* Since session is dead, file will be closed on server already */ |
790fe579 | 1908 | if (rc == -EAGAIN) |
1da177e4 LT |
1909 | rc = 0; |
1910 | ||
1911 | return rc; | |
1912 | } | |
1913 | ||
b298f223 SF |
1914 | int |
1915 | CIFSSMBFlush(const int xid, struct cifsTconInfo *tcon, int smb_file_id) | |
1916 | { | |
1917 | int rc = 0; | |
1918 | FLUSH_REQ *pSMB = NULL; | |
1919 | cFYI(1, ("In CIFSSMBFlush")); | |
1920 | ||
1921 | rc = small_smb_init(SMB_COM_FLUSH, 1, tcon, (void **) &pSMB); | |
1922 | if (rc) | |
1923 | return rc; | |
1924 | ||
1925 | pSMB->FileID = (__u16) smb_file_id; | |
1926 | pSMB->ByteCount = 0; | |
1927 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); | |
1928 | cifs_stats_inc(&tcon->num_flushes); | |
1929 | if (rc) | |
1930 | cERROR(1, ("Send error in Flush = %d", rc)); | |
1931 | ||
1932 | return rc; | |
1933 | } | |
1934 | ||
1da177e4 LT |
1935 | int |
1936 | CIFSSMBRename(const int xid, struct cifsTconInfo *tcon, | |
1937 | const char *fromName, const char *toName, | |
737b758c | 1938 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
1939 | { |
1940 | int rc = 0; | |
1941 | RENAME_REQ *pSMB = NULL; | |
1942 | RENAME_RSP *pSMBr = NULL; | |
1943 | int bytes_returned; | |
1944 | int name_len, name_len2; | |
1945 | __u16 count; | |
1946 | ||
1947 | cFYI(1, ("In CIFSSMBRename")); | |
1948 | renameRetry: | |
1949 | rc = smb_init(SMB_COM_RENAME, 1, tcon, (void **) &pSMB, | |
1950 | (void **) &pSMBr); | |
1951 | if (rc) | |
1952 | return rc; | |
1953 | ||
1954 | pSMB->BufferFormat = 0x04; | |
1955 | pSMB->SearchAttributes = | |
1956 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | | |
1957 | ATTR_DIRECTORY); | |
1958 | ||
1959 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1960 | name_len = | |
50c2f753 | 1961 | cifsConvertToUCS((__le16 *) pSMB->OldFileName, fromName, |
737b758c | 1962 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1963 | name_len++; /* trailing null */ |
1964 | name_len *= 2; | |
1965 | pSMB->OldFileName[name_len] = 0x04; /* pad */ | |
1966 | /* protocol requires ASCII signature byte on Unicode string */ | |
1967 | pSMB->OldFileName[name_len + 1] = 0x00; | |
1968 | name_len2 = | |
582d21e5 | 1969 | cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2], |
737b758c | 1970 | toName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1971 | name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; |
1972 | name_len2 *= 2; /* convert to bytes */ | |
50c2f753 | 1973 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
1974 | name_len = strnlen(fromName, PATH_MAX); |
1975 | name_len++; /* trailing null */ | |
1976 | strncpy(pSMB->OldFileName, fromName, name_len); | |
1977 | name_len2 = strnlen(toName, PATH_MAX); | |
1978 | name_len2++; /* trailing null */ | |
1979 | pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */ | |
1980 | strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2); | |
1981 | name_len2++; /* trailing null */ | |
1982 | name_len2++; /* signature byte */ | |
1983 | } | |
1984 | ||
1985 | count = 1 /* 1st signature byte */ + name_len + name_len2; | |
1986 | pSMB->hdr.smb_buf_length += count; | |
1987 | pSMB->ByteCount = cpu_to_le16(count); | |
1988 | ||
1989 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1990 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 1991 | cifs_stats_inc(&tcon->num_renames); |
ad7a2926 | 1992 | if (rc) |
1da177e4 | 1993 | cFYI(1, ("Send error in rename = %d", rc)); |
1da177e4 | 1994 | |
1da177e4 LT |
1995 | cifs_buf_release(pSMB); |
1996 | ||
1997 | if (rc == -EAGAIN) | |
1998 | goto renameRetry; | |
1999 | ||
2000 | return rc; | |
2001 | } | |
2002 | ||
50c2f753 | 2003 | int CIFSSMBRenameOpenFile(const int xid, struct cifsTconInfo *pTcon, |
391e5755 | 2004 | int netfid, const char *target_name, |
50c2f753 | 2005 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
2006 | { |
2007 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
2008 | struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; | |
50c2f753 | 2009 | struct set_file_rename *rename_info; |
1da177e4 LT |
2010 | char *data_offset; |
2011 | char dummy_string[30]; | |
2012 | int rc = 0; | |
2013 | int bytes_returned = 0; | |
2014 | int len_of_str; | |
2015 | __u16 params, param_offset, offset, count, byte_count; | |
2016 | ||
2017 | cFYI(1, ("Rename to File by handle")); | |
2018 | rc = smb_init(SMB_COM_TRANSACTION2, 15, pTcon, (void **) &pSMB, | |
2019 | (void **) &pSMBr); | |
2020 | if (rc) | |
2021 | return rc; | |
2022 | ||
2023 | params = 6; | |
2024 | pSMB->MaxSetupCount = 0; | |
2025 | pSMB->Reserved = 0; | |
2026 | pSMB->Flags = 0; | |
2027 | pSMB->Timeout = 0; | |
2028 | pSMB->Reserved2 = 0; | |
2029 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
2030 | offset = param_offset + params; | |
2031 | ||
2032 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
2033 | rename_info = (struct set_file_rename *) data_offset; | |
2034 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
ad7a2926 | 2035 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB from sess */ |
1da177e4 LT |
2036 | pSMB->SetupCount = 1; |
2037 | pSMB->Reserved3 = 0; | |
2038 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
2039 | byte_count = 3 /* pad */ + params; | |
2040 | pSMB->ParameterCount = cpu_to_le16(params); | |
2041 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
2042 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
2043 | pSMB->DataOffset = cpu_to_le16(offset); | |
2044 | /* construct random name ".cifs_tmp<inodenum><mid>" */ | |
2045 | rename_info->overwrite = cpu_to_le32(1); | |
2046 | rename_info->root_fid = 0; | |
2047 | /* unicode only call */ | |
790fe579 | 2048 | if (target_name == NULL) { |
50c2f753 SF |
2049 | sprintf(dummy_string, "cifs%x", pSMB->hdr.Mid); |
2050 | len_of_str = cifsConvertToUCS((__le16 *)rename_info->target_name, | |
737b758c | 2051 | dummy_string, 24, nls_codepage, remap); |
1da177e4 | 2052 | } else { |
b1a45695 | 2053 | len_of_str = cifsConvertToUCS((__le16 *)rename_info->target_name, |
50c2f753 SF |
2054 | target_name, PATH_MAX, nls_codepage, |
2055 | remap); | |
1da177e4 LT |
2056 | } |
2057 | rename_info->target_name_len = cpu_to_le32(2 * len_of_str); | |
391e5755 | 2058 | count = 12 /* sizeof(struct set_file_rename) */ + (2 * len_of_str); |
1da177e4 LT |
2059 | byte_count += count; |
2060 | pSMB->DataCount = cpu_to_le16(count); | |
2061 | pSMB->TotalDataCount = pSMB->DataCount; | |
2062 | pSMB->Fid = netfid; | |
2063 | pSMB->InformationLevel = | |
2064 | cpu_to_le16(SMB_SET_FILE_RENAME_INFORMATION); | |
2065 | pSMB->Reserved4 = 0; | |
2066 | pSMB->hdr.smb_buf_length += byte_count; | |
2067 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2068 | rc = SendReceive(xid, pTcon->ses, (struct smb_hdr *) pSMB, | |
50c2f753 | 2069 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
a4544347 | 2070 | cifs_stats_inc(&pTcon->num_t2renames); |
ad7a2926 | 2071 | if (rc) |
790fe579 | 2072 | cFYI(1, ("Send error in Rename (by file handle) = %d", rc)); |
a5a2b489 | 2073 | |
1da177e4 LT |
2074 | cifs_buf_release(pSMB); |
2075 | ||
2076 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
2077 | since file handle passed in no longer valid */ | |
2078 | ||
2079 | return rc; | |
2080 | } | |
2081 | ||
2082 | int | |
50c2f753 SF |
2083 | CIFSSMBCopy(const int xid, struct cifsTconInfo *tcon, const char *fromName, |
2084 | const __u16 target_tid, const char *toName, const int flags, | |
2085 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
2086 | { |
2087 | int rc = 0; | |
2088 | COPY_REQ *pSMB = NULL; | |
2089 | COPY_RSP *pSMBr = NULL; | |
2090 | int bytes_returned; | |
2091 | int name_len, name_len2; | |
2092 | __u16 count; | |
2093 | ||
2094 | cFYI(1, ("In CIFSSMBCopy")); | |
2095 | copyRetry: | |
2096 | rc = smb_init(SMB_COM_COPY, 1, tcon, (void **) &pSMB, | |
2097 | (void **) &pSMBr); | |
2098 | if (rc) | |
2099 | return rc; | |
2100 | ||
2101 | pSMB->BufferFormat = 0x04; | |
2102 | pSMB->Tid2 = target_tid; | |
2103 | ||
2104 | pSMB->Flags = cpu_to_le16(flags & COPY_TREE); | |
2105 | ||
2106 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
50c2f753 | 2107 | name_len = cifsConvertToUCS((__le16 *) pSMB->OldFileName, |
737b758c SF |
2108 | fromName, PATH_MAX, nls_codepage, |
2109 | remap); | |
1da177e4 LT |
2110 | name_len++; /* trailing null */ |
2111 | name_len *= 2; | |
2112 | pSMB->OldFileName[name_len] = 0x04; /* pad */ | |
2113 | /* protocol requires ASCII signature byte on Unicode string */ | |
2114 | pSMB->OldFileName[name_len + 1] = 0x00; | |
50c2f753 SF |
2115 | name_len2 = |
2116 | cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2], | |
737b758c | 2117 | toName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2118 | name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; |
2119 | name_len2 *= 2; /* convert to bytes */ | |
50c2f753 | 2120 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2121 | name_len = strnlen(fromName, PATH_MAX); |
2122 | name_len++; /* trailing null */ | |
2123 | strncpy(pSMB->OldFileName, fromName, name_len); | |
2124 | name_len2 = strnlen(toName, PATH_MAX); | |
2125 | name_len2++; /* trailing null */ | |
2126 | pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */ | |
2127 | strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2); | |
2128 | name_len2++; /* trailing null */ | |
2129 | name_len2++; /* signature byte */ | |
2130 | } | |
2131 | ||
2132 | count = 1 /* 1st signature byte */ + name_len + name_len2; | |
2133 | pSMB->hdr.smb_buf_length += count; | |
2134 | pSMB->ByteCount = cpu_to_le16(count); | |
2135 | ||
2136 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2137 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2138 | if (rc) { | |
2139 | cFYI(1, ("Send error in copy = %d with %d files copied", | |
2140 | rc, le16_to_cpu(pSMBr->CopyCount))); | |
2141 | } | |
0d817bc0 | 2142 | cifs_buf_release(pSMB); |
1da177e4 LT |
2143 | |
2144 | if (rc == -EAGAIN) | |
2145 | goto copyRetry; | |
2146 | ||
2147 | return rc; | |
2148 | } | |
2149 | ||
2150 | int | |
2151 | CIFSUnixCreateSymLink(const int xid, struct cifsTconInfo *tcon, | |
2152 | const char *fromName, const char *toName, | |
2153 | const struct nls_table *nls_codepage) | |
2154 | { | |
2155 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
2156 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
2157 | char *data_offset; | |
2158 | int name_len; | |
2159 | int name_len_target; | |
2160 | int rc = 0; | |
2161 | int bytes_returned = 0; | |
2162 | __u16 params, param_offset, offset, byte_count; | |
2163 | ||
2164 | cFYI(1, ("In Symlink Unix style")); | |
2165 | createSymLinkRetry: | |
2166 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2167 | (void **) &pSMBr); | |
2168 | if (rc) | |
2169 | return rc; | |
2170 | ||
2171 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2172 | name_len = | |
e89dc920 | 2173 | cifs_strtoUCS((__le16 *) pSMB->FileName, fromName, PATH_MAX |
1da177e4 LT |
2174 | /* find define for this maxpathcomponent */ |
2175 | , nls_codepage); | |
2176 | name_len++; /* trailing null */ | |
2177 | name_len *= 2; | |
2178 | ||
50c2f753 | 2179 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2180 | name_len = strnlen(fromName, PATH_MAX); |
2181 | name_len++; /* trailing null */ | |
2182 | strncpy(pSMB->FileName, fromName, name_len); | |
2183 | } | |
2184 | params = 6 + name_len; | |
2185 | pSMB->MaxSetupCount = 0; | |
2186 | pSMB->Reserved = 0; | |
2187 | pSMB->Flags = 0; | |
2188 | pSMB->Timeout = 0; | |
2189 | pSMB->Reserved2 = 0; | |
2190 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 2191 | InformationLevel) - 4; |
1da177e4 LT |
2192 | offset = param_offset + params; |
2193 | ||
2194 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
2195 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2196 | name_len_target = | |
e89dc920 | 2197 | cifs_strtoUCS((__le16 *) data_offset, toName, PATH_MAX |
1da177e4 LT |
2198 | /* find define for this maxpathcomponent */ |
2199 | , nls_codepage); | |
2200 | name_len_target++; /* trailing null */ | |
2201 | name_len_target *= 2; | |
50c2f753 | 2202 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2203 | name_len_target = strnlen(toName, PATH_MAX); |
2204 | name_len_target++; /* trailing null */ | |
2205 | strncpy(data_offset, toName, name_len_target); | |
2206 | } | |
2207 | ||
2208 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
2209 | /* BB find exact max on data count below from sess */ | |
2210 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
2211 | pSMB->SetupCount = 1; | |
2212 | pSMB->Reserved3 = 0; | |
2213 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
2214 | byte_count = 3 /* pad */ + params + name_len_target; | |
2215 | pSMB->DataCount = cpu_to_le16(name_len_target); | |
2216 | pSMB->ParameterCount = cpu_to_le16(params); | |
2217 | pSMB->TotalDataCount = pSMB->DataCount; | |
2218 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
2219 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
2220 | pSMB->DataOffset = cpu_to_le16(offset); | |
2221 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_LINK); | |
2222 | pSMB->Reserved4 = 0; | |
2223 | pSMB->hdr.smb_buf_length += byte_count; | |
2224 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2225 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2226 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 2227 | cifs_stats_inc(&tcon->num_symlinks); |
ad7a2926 | 2228 | if (rc) |
2d785a50 | 2229 | cFYI(1, ("Send error in SetPathInfo create symlink = %d", rc)); |
1da177e4 | 2230 | |
0d817bc0 | 2231 | cifs_buf_release(pSMB); |
1da177e4 LT |
2232 | |
2233 | if (rc == -EAGAIN) | |
2234 | goto createSymLinkRetry; | |
2235 | ||
2236 | return rc; | |
2237 | } | |
2238 | ||
2239 | int | |
2240 | CIFSUnixCreateHardLink(const int xid, struct cifsTconInfo *tcon, | |
2241 | const char *fromName, const char *toName, | |
737b758c | 2242 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
2243 | { |
2244 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
2245 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
2246 | char *data_offset; | |
2247 | int name_len; | |
2248 | int name_len_target; | |
2249 | int rc = 0; | |
2250 | int bytes_returned = 0; | |
2251 | __u16 params, param_offset, offset, byte_count; | |
2252 | ||
2253 | cFYI(1, ("In Create Hard link Unix style")); | |
2254 | createHardLinkRetry: | |
2255 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2256 | (void **) &pSMBr); | |
2257 | if (rc) | |
2258 | return rc; | |
2259 | ||
2260 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
b1a45695 | 2261 | name_len = cifsConvertToUCS((__le16 *) pSMB->FileName, toName, |
737b758c | 2262 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2263 | name_len++; /* trailing null */ |
2264 | name_len *= 2; | |
2265 | ||
50c2f753 | 2266 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2267 | name_len = strnlen(toName, PATH_MAX); |
2268 | name_len++; /* trailing null */ | |
2269 | strncpy(pSMB->FileName, toName, name_len); | |
2270 | } | |
2271 | params = 6 + name_len; | |
2272 | pSMB->MaxSetupCount = 0; | |
2273 | pSMB->Reserved = 0; | |
2274 | pSMB->Flags = 0; | |
2275 | pSMB->Timeout = 0; | |
2276 | pSMB->Reserved2 = 0; | |
2277 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 2278 | InformationLevel) - 4; |
1da177e4 LT |
2279 | offset = param_offset + params; |
2280 | ||
2281 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
2282 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2283 | name_len_target = | |
b1a45695 | 2284 | cifsConvertToUCS((__le16 *) data_offset, fromName, PATH_MAX, |
737b758c | 2285 | nls_codepage, remap); |
1da177e4 LT |
2286 | name_len_target++; /* trailing null */ |
2287 | name_len_target *= 2; | |
50c2f753 | 2288 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2289 | name_len_target = strnlen(fromName, PATH_MAX); |
2290 | name_len_target++; /* trailing null */ | |
2291 | strncpy(data_offset, fromName, name_len_target); | |
2292 | } | |
2293 | ||
2294 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
2295 | /* BB find exact max on data count below from sess*/ | |
2296 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
2297 | pSMB->SetupCount = 1; | |
2298 | pSMB->Reserved3 = 0; | |
2299 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
2300 | byte_count = 3 /* pad */ + params + name_len_target; | |
2301 | pSMB->ParameterCount = cpu_to_le16(params); | |
2302 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
2303 | pSMB->DataCount = cpu_to_le16(name_len_target); | |
2304 | pSMB->TotalDataCount = pSMB->DataCount; | |
2305 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
2306 | pSMB->DataOffset = cpu_to_le16(offset); | |
2307 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_HLINK); | |
2308 | pSMB->Reserved4 = 0; | |
2309 | pSMB->hdr.smb_buf_length += byte_count; | |
2310 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2311 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2312 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 2313 | cifs_stats_inc(&tcon->num_hardlinks); |
ad7a2926 | 2314 | if (rc) |
1da177e4 | 2315 | cFYI(1, ("Send error in SetPathInfo (hard link) = %d", rc)); |
1da177e4 LT |
2316 | |
2317 | cifs_buf_release(pSMB); | |
2318 | if (rc == -EAGAIN) | |
2319 | goto createHardLinkRetry; | |
2320 | ||
2321 | return rc; | |
2322 | } | |
2323 | ||
2324 | int | |
2325 | CIFSCreateHardLink(const int xid, struct cifsTconInfo *tcon, | |
2326 | const char *fromName, const char *toName, | |
737b758c | 2327 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
2328 | { |
2329 | int rc = 0; | |
2330 | NT_RENAME_REQ *pSMB = NULL; | |
2331 | RENAME_RSP *pSMBr = NULL; | |
2332 | int bytes_returned; | |
2333 | int name_len, name_len2; | |
2334 | __u16 count; | |
2335 | ||
2336 | cFYI(1, ("In CIFSCreateHardLink")); | |
2337 | winCreateHardLinkRetry: | |
2338 | ||
2339 | rc = smb_init(SMB_COM_NT_RENAME, 4, tcon, (void **) &pSMB, | |
2340 | (void **) &pSMBr); | |
2341 | if (rc) | |
2342 | return rc; | |
2343 | ||
2344 | pSMB->SearchAttributes = | |
2345 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | | |
2346 | ATTR_DIRECTORY); | |
2347 | pSMB->Flags = cpu_to_le16(CREATE_HARD_LINK); | |
2348 | pSMB->ClusterCount = 0; | |
2349 | ||
2350 | pSMB->BufferFormat = 0x04; | |
2351 | ||
2352 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2353 | name_len = | |
b1a45695 | 2354 | cifsConvertToUCS((__le16 *) pSMB->OldFileName, fromName, |
737b758c | 2355 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2356 | name_len++; /* trailing null */ |
2357 | name_len *= 2; | |
fcc7c09d JL |
2358 | |
2359 | /* protocol specifies ASCII buffer format (0x04) for unicode */ | |
2360 | pSMB->OldFileName[name_len] = 0x04; | |
2361 | pSMB->OldFileName[name_len + 1] = 0x00; /* pad */ | |
1da177e4 | 2362 | name_len2 = |
50c2f753 | 2363 | cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2], |
737b758c | 2364 | toName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2365 | name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; |
2366 | name_len2 *= 2; /* convert to bytes */ | |
50c2f753 | 2367 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2368 | name_len = strnlen(fromName, PATH_MAX); |
2369 | name_len++; /* trailing null */ | |
2370 | strncpy(pSMB->OldFileName, fromName, name_len); | |
2371 | name_len2 = strnlen(toName, PATH_MAX); | |
2372 | name_len2++; /* trailing null */ | |
2373 | pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */ | |
2374 | strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2); | |
2375 | name_len2++; /* trailing null */ | |
2376 | name_len2++; /* signature byte */ | |
2377 | } | |
2378 | ||
2379 | count = 1 /* string type byte */ + name_len + name_len2; | |
2380 | pSMB->hdr.smb_buf_length += count; | |
2381 | pSMB->ByteCount = cpu_to_le16(count); | |
2382 | ||
2383 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2384 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 2385 | cifs_stats_inc(&tcon->num_hardlinks); |
ad7a2926 | 2386 | if (rc) |
1da177e4 | 2387 | cFYI(1, ("Send error in hard link (NT rename) = %d", rc)); |
ad7a2926 | 2388 | |
1da177e4 LT |
2389 | cifs_buf_release(pSMB); |
2390 | if (rc == -EAGAIN) | |
2391 | goto winCreateHardLinkRetry; | |
2392 | ||
2393 | return rc; | |
2394 | } | |
2395 | ||
2396 | int | |
2397 | CIFSSMBUnixQuerySymLink(const int xid, struct cifsTconInfo *tcon, | |
460b9696 | 2398 | const unsigned char *searchName, char **symlinkinfo, |
1da177e4 LT |
2399 | const struct nls_table *nls_codepage) |
2400 | { | |
2401 | /* SMB_QUERY_FILE_UNIX_LINK */ | |
2402 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
2403 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
2404 | int rc = 0; | |
2405 | int bytes_returned; | |
2406 | int name_len; | |
2407 | __u16 params, byte_count; | |
460b9696 | 2408 | char *data_start; |
1da177e4 LT |
2409 | |
2410 | cFYI(1, ("In QPathSymLinkInfo (Unix) for path %s", searchName)); | |
2411 | ||
2412 | querySymLinkRetry: | |
2413 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2414 | (void **) &pSMBr); | |
2415 | if (rc) | |
2416 | return rc; | |
2417 | ||
2418 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2419 | name_len = | |
50c2f753 SF |
2420 | cifs_strtoUCS((__le16 *) pSMB->FileName, searchName, |
2421 | PATH_MAX, nls_codepage); | |
1da177e4 LT |
2422 | name_len++; /* trailing null */ |
2423 | name_len *= 2; | |
50c2f753 | 2424 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2425 | name_len = strnlen(searchName, PATH_MAX); |
2426 | name_len++; /* trailing null */ | |
2427 | strncpy(pSMB->FileName, searchName, name_len); | |
2428 | } | |
2429 | ||
2430 | params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ; | |
2431 | pSMB->TotalDataCount = 0; | |
2432 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
46a7574c | 2433 | pSMB->MaxDataCount = cpu_to_le16(CIFSMaxBufSize); |
1da177e4 LT |
2434 | pSMB->MaxSetupCount = 0; |
2435 | pSMB->Reserved = 0; | |
2436 | pSMB->Flags = 0; | |
2437 | pSMB->Timeout = 0; | |
2438 | pSMB->Reserved2 = 0; | |
2439 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 2440 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
1da177e4 LT |
2441 | pSMB->DataCount = 0; |
2442 | pSMB->DataOffset = 0; | |
2443 | pSMB->SetupCount = 1; | |
2444 | pSMB->Reserved3 = 0; | |
2445 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
2446 | byte_count = params + 1 /* pad */ ; | |
2447 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
2448 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2449 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_UNIX_LINK); | |
2450 | pSMB->Reserved4 = 0; | |
2451 | pSMB->hdr.smb_buf_length += byte_count; | |
2452 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2453 | ||
2454 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2455 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2456 | if (rc) { | |
2457 | cFYI(1, ("Send error in QuerySymLinkInfo = %d", rc)); | |
2458 | } else { | |
2459 | /* decode response */ | |
2460 | ||
2461 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
1da177e4 | 2462 | /* BB also check enough total bytes returned */ |
460b9696 JL |
2463 | if (rc || (pSMBr->ByteCount < 2)) |
2464 | rc = -EIO; | |
1da177e4 | 2465 | else { |
0e0d2cf3 | 2466 | bool is_unicode; |
460b9696 JL |
2467 | u16 count = le16_to_cpu(pSMBr->t2.DataCount); |
2468 | ||
2469 | data_start = ((char *) &pSMBr->hdr.Protocol) + | |
2470 | le16_to_cpu(pSMBr->t2.DataOffset); | |
1da177e4 | 2471 | |
0e0d2cf3 SF |
2472 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) |
2473 | is_unicode = true; | |
2474 | else | |
2475 | is_unicode = false; | |
2476 | ||
737b758c | 2477 | /* BB FIXME investigate remapping reserved chars here */ |
d185cda7 | 2478 | *symlinkinfo = cifs_strndup_from_ucs(data_start, count, |
0e0d2cf3 | 2479 | is_unicode, nls_codepage); |
8b6427a2 | 2480 | if (!*symlinkinfo) |
460b9696 | 2481 | rc = -ENOMEM; |
1da177e4 LT |
2482 | } |
2483 | } | |
2484 | cifs_buf_release(pSMB); | |
2485 | if (rc == -EAGAIN) | |
2486 | goto querySymLinkRetry; | |
2487 | return rc; | |
2488 | } | |
2489 | ||
c9489779 | 2490 | #ifdef CONFIG_CIFS_EXPERIMENTAL |
0a4b92c0 SF |
2491 | /* Initialize NT TRANSACT SMB into small smb request buffer. |
2492 | This assumes that all NT TRANSACTS that we init here have | |
2493 | total parm and data under about 400 bytes (to fit in small cifs | |
2494 | buffer size), which is the case so far, it easily fits. NB: | |
2495 | Setup words themselves and ByteCount | |
2496 | MaxSetupCount (size of returned setup area) and | |
2497 | MaxParameterCount (returned parms size) must be set by caller */ | |
50c2f753 | 2498 | static int |
b9c7a2bb | 2499 | smb_init_nttransact(const __u16 sub_command, const int setup_count, |
0a4b92c0 | 2500 | const int parm_len, struct cifsTconInfo *tcon, |
50c2f753 | 2501 | void **ret_buf) |
0a4b92c0 SF |
2502 | { |
2503 | int rc; | |
2504 | __u32 temp_offset; | |
50c2f753 | 2505 | struct smb_com_ntransact_req *pSMB; |
0a4b92c0 SF |
2506 | |
2507 | rc = small_smb_init(SMB_COM_NT_TRANSACT, 19 + setup_count, tcon, | |
2508 | (void **)&pSMB); | |
2509 | if (rc) | |
2510 | return rc; | |
2511 | *ret_buf = (void *)pSMB; | |
2512 | pSMB->Reserved = 0; | |
2513 | pSMB->TotalParameterCount = cpu_to_le32(parm_len); | |
2514 | pSMB->TotalDataCount = 0; | |
2515 | pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf - | |
2516 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
2517 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2518 | pSMB->DataCount = pSMB->TotalDataCount; | |
2519 | temp_offset = offsetof(struct smb_com_ntransact_req, Parms) + | |
2520 | (setup_count * 2) - 4 /* for rfc1001 length itself */; | |
2521 | pSMB->ParameterOffset = cpu_to_le32(temp_offset); | |
2522 | pSMB->DataOffset = cpu_to_le32(temp_offset + parm_len); | |
2523 | pSMB->SetupCount = setup_count; /* no need to le convert byte fields */ | |
2524 | pSMB->SubCommand = cpu_to_le16(sub_command); | |
2525 | return 0; | |
2526 | } | |
2527 | ||
2528 | static int | |
50c2f753 | 2529 | validate_ntransact(char *buf, char **ppparm, char **ppdata, |
b9c7a2bb | 2530 | __u32 *pparmlen, __u32 *pdatalen) |
0a4b92c0 | 2531 | { |
50c2f753 | 2532 | char *end_of_smb; |
0a4b92c0 | 2533 | __u32 data_count, data_offset, parm_count, parm_offset; |
50c2f753 | 2534 | struct smb_com_ntransact_rsp *pSMBr; |
0a4b92c0 | 2535 | |
630f3f0c SF |
2536 | *pdatalen = 0; |
2537 | *pparmlen = 0; | |
2538 | ||
790fe579 | 2539 | if (buf == NULL) |
0a4b92c0 SF |
2540 | return -EINVAL; |
2541 | ||
2542 | pSMBr = (struct smb_com_ntransact_rsp *)buf; | |
2543 | ||
2544 | /* ByteCount was converted from little endian in SendReceive */ | |
50c2f753 | 2545 | end_of_smb = 2 /* sizeof byte count */ + pSMBr->ByteCount + |
0a4b92c0 SF |
2546 | (char *)&pSMBr->ByteCount; |
2547 | ||
0a4b92c0 SF |
2548 | data_offset = le32_to_cpu(pSMBr->DataOffset); |
2549 | data_count = le32_to_cpu(pSMBr->DataCount); | |
50c2f753 | 2550 | parm_offset = le32_to_cpu(pSMBr->ParameterOffset); |
0a4b92c0 SF |
2551 | parm_count = le32_to_cpu(pSMBr->ParameterCount); |
2552 | ||
2553 | *ppparm = (char *)&pSMBr->hdr.Protocol + parm_offset; | |
2554 | *ppdata = (char *)&pSMBr->hdr.Protocol + data_offset; | |
2555 | ||
2556 | /* should we also check that parm and data areas do not overlap? */ | |
790fe579 SF |
2557 | if (*ppparm > end_of_smb) { |
2558 | cFYI(1, ("parms start after end of smb")); | |
0a4b92c0 | 2559 | return -EINVAL; |
790fe579 SF |
2560 | } else if (parm_count + *ppparm > end_of_smb) { |
2561 | cFYI(1, ("parm end after end of smb")); | |
0a4b92c0 | 2562 | return -EINVAL; |
790fe579 SF |
2563 | } else if (*ppdata > end_of_smb) { |
2564 | cFYI(1, ("data starts after end of smb")); | |
0a4b92c0 | 2565 | return -EINVAL; |
790fe579 | 2566 | } else if (data_count + *ppdata > end_of_smb) { |
26f57364 | 2567 | cFYI(1, ("data %p + count %d (%p) ends after end of smb %p start %p", |
50c2f753 SF |
2568 | *ppdata, data_count, (data_count + *ppdata), |
2569 | end_of_smb, pSMBr)); | |
0a4b92c0 | 2570 | return -EINVAL; |
790fe579 SF |
2571 | } else if (parm_count + data_count > pSMBr->ByteCount) { |
2572 | cFYI(1, ("parm count and data count larger than SMB")); | |
0a4b92c0 SF |
2573 | return -EINVAL; |
2574 | } | |
630f3f0c SF |
2575 | *pdatalen = data_count; |
2576 | *pparmlen = parm_count; | |
0a4b92c0 SF |
2577 | return 0; |
2578 | } | |
2579 | ||
1da177e4 LT |
2580 | int |
2581 | CIFSSMBQueryReparseLinkInfo(const int xid, struct cifsTconInfo *tcon, | |
2582 | const unsigned char *searchName, | |
50c2f753 | 2583 | char *symlinkinfo, const int buflen, __u16 fid, |
1da177e4 LT |
2584 | const struct nls_table *nls_codepage) |
2585 | { | |
2586 | int rc = 0; | |
2587 | int bytes_returned; | |
50c2f753 SF |
2588 | struct smb_com_transaction_ioctl_req *pSMB; |
2589 | struct smb_com_transaction_ioctl_rsp *pSMBr; | |
1da177e4 LT |
2590 | |
2591 | cFYI(1, ("In Windows reparse style QueryLink for path %s", searchName)); | |
2592 | rc = smb_init(SMB_COM_NT_TRANSACT, 23, tcon, (void **) &pSMB, | |
2593 | (void **) &pSMBr); | |
2594 | if (rc) | |
2595 | return rc; | |
2596 | ||
2597 | pSMB->TotalParameterCount = 0 ; | |
2598 | pSMB->TotalDataCount = 0; | |
2599 | pSMB->MaxParameterCount = cpu_to_le32(2); | |
2600 | /* BB find exact data count max from sess structure BB */ | |
0a4b92c0 SF |
2601 | pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf - |
2602 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
1da177e4 LT |
2603 | pSMB->MaxSetupCount = 4; |
2604 | pSMB->Reserved = 0; | |
2605 | pSMB->ParameterOffset = 0; | |
2606 | pSMB->DataCount = 0; | |
2607 | pSMB->DataOffset = 0; | |
2608 | pSMB->SetupCount = 4; | |
2609 | pSMB->SubCommand = cpu_to_le16(NT_TRANSACT_IOCTL); | |
2610 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2611 | pSMB->FunctionCode = cpu_to_le32(FSCTL_GET_REPARSE_POINT); | |
2612 | pSMB->IsFsctl = 1; /* FSCTL */ | |
2613 | pSMB->IsRootFlag = 0; | |
2614 | pSMB->Fid = fid; /* file handle always le */ | |
2615 | pSMB->ByteCount = 0; | |
2616 | ||
2617 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2618 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2619 | if (rc) { | |
2620 | cFYI(1, ("Send error in QueryReparseLinkInfo = %d", rc)); | |
2621 | } else { /* decode response */ | |
2622 | __u32 data_offset = le32_to_cpu(pSMBr->DataOffset); | |
2623 | __u32 data_count = le32_to_cpu(pSMBr->DataCount); | |
afe48c31 | 2624 | if ((pSMBr->ByteCount < 2) || (data_offset > 512)) { |
1da177e4 LT |
2625 | /* BB also check enough total bytes returned */ |
2626 | rc = -EIO; /* bad smb */ | |
afe48c31 SF |
2627 | goto qreparse_out; |
2628 | } | |
2629 | if (data_count && (data_count < 2048)) { | |
2630 | char *end_of_smb = 2 /* sizeof byte count */ + | |
2631 | pSMBr->ByteCount + (char *)&pSMBr->ByteCount; | |
1da177e4 | 2632 | |
afe48c31 | 2633 | struct reparse_data *reparse_buf = |
50c2f753 SF |
2634 | (struct reparse_data *) |
2635 | ((char *)&pSMBr->hdr.Protocol | |
2636 | + data_offset); | |
afe48c31 SF |
2637 | if ((char *)reparse_buf >= end_of_smb) { |
2638 | rc = -EIO; | |
2639 | goto qreparse_out; | |
2640 | } | |
2641 | if ((reparse_buf->LinkNamesBuf + | |
2642 | reparse_buf->TargetNameOffset + | |
2643 | reparse_buf->TargetNameLen) > end_of_smb) { | |
2644 | cFYI(1, ("reparse buf beyond SMB")); | |
2645 | rc = -EIO; | |
2646 | goto qreparse_out; | |
2647 | } | |
50c2f753 | 2648 | |
afe48c31 SF |
2649 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { |
2650 | cifs_from_ucs2(symlinkinfo, (__le16 *) | |
50c2f753 SF |
2651 | (reparse_buf->LinkNamesBuf + |
2652 | reparse_buf->TargetNameOffset), | |
afe48c31 SF |
2653 | buflen, |
2654 | reparse_buf->TargetNameLen, | |
2655 | nls_codepage, 0); | |
2656 | } else { /* ASCII names */ | |
2657 | strncpy(symlinkinfo, | |
2658 | reparse_buf->LinkNamesBuf + | |
2659 | reparse_buf->TargetNameOffset, | |
2660 | min_t(const int, buflen, | |
2661 | reparse_buf->TargetNameLen)); | |
1da177e4 | 2662 | } |
afe48c31 SF |
2663 | } else { |
2664 | rc = -EIO; | |
2665 | cFYI(1, ("Invalid return data count on " | |
2666 | "get reparse info ioctl")); | |
1da177e4 | 2667 | } |
afe48c31 SF |
2668 | symlinkinfo[buflen] = 0; /* just in case so the caller |
2669 | does not go off the end of the buffer */ | |
2670 | cFYI(1, ("readlink result - %s", symlinkinfo)); | |
1da177e4 | 2671 | } |
989c7e51 | 2672 | |
1da177e4 | 2673 | qreparse_out: |
4a6d87f1 | 2674 | cifs_buf_release(pSMB); |
1da177e4 LT |
2675 | |
2676 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
2677 | since file handle passed in no longer valid */ | |
2678 | ||
2679 | return rc; | |
2680 | } | |
afe48c31 | 2681 | #endif /* CIFS_EXPERIMENTAL */ |
1da177e4 LT |
2682 | |
2683 | #ifdef CONFIG_CIFS_POSIX | |
2684 | ||
2685 | /*Convert an Access Control Entry from wire format to local POSIX xattr format*/ | |
50c2f753 SF |
2686 | static void cifs_convert_ace(posix_acl_xattr_entry *ace, |
2687 | struct cifs_posix_ace *cifs_ace) | |
1da177e4 LT |
2688 | { |
2689 | /* u8 cifs fields do not need le conversion */ | |
ff7feac9 SF |
2690 | ace->e_perm = cpu_to_le16(cifs_ace->cifs_e_perm); |
2691 | ace->e_tag = cpu_to_le16(cifs_ace->cifs_e_tag); | |
2692 | ace->e_id = cpu_to_le32(le64_to_cpu(cifs_ace->cifs_uid)); | |
1da177e4 LT |
2693 | /* cFYI(1,("perm %d tag %d id %d",ace->e_perm,ace->e_tag,ace->e_id)); */ |
2694 | ||
2695 | return; | |
2696 | } | |
2697 | ||
2698 | /* Convert ACL from CIFS POSIX wire format to local Linux POSIX ACL xattr */ | |
50c2f753 SF |
2699 | static int cifs_copy_posix_acl(char *trgt, char *src, const int buflen, |
2700 | const int acl_type, const int size_of_data_area) | |
1da177e4 LT |
2701 | { |
2702 | int size = 0; | |
2703 | int i; | |
2704 | __u16 count; | |
50c2f753 SF |
2705 | struct cifs_posix_ace *pACE; |
2706 | struct cifs_posix_acl *cifs_acl = (struct cifs_posix_acl *)src; | |
2707 | posix_acl_xattr_header *local_acl = (posix_acl_xattr_header *)trgt; | |
1da177e4 LT |
2708 | |
2709 | if (le16_to_cpu(cifs_acl->version) != CIFS_ACL_VERSION) | |
2710 | return -EOPNOTSUPP; | |
2711 | ||
790fe579 | 2712 | if (acl_type & ACL_TYPE_ACCESS) { |
1da177e4 LT |
2713 | count = le16_to_cpu(cifs_acl->access_entry_count); |
2714 | pACE = &cifs_acl->ace_array[0]; | |
2715 | size = sizeof(struct cifs_posix_acl); | |
2716 | size += sizeof(struct cifs_posix_ace) * count; | |
2717 | /* check if we would go beyond end of SMB */ | |
790fe579 | 2718 | if (size_of_data_area < size) { |
50c2f753 SF |
2719 | cFYI(1, ("bad CIFS POSIX ACL size %d vs. %d", |
2720 | size_of_data_area, size)); | |
1da177e4 LT |
2721 | return -EINVAL; |
2722 | } | |
790fe579 | 2723 | } else if (acl_type & ACL_TYPE_DEFAULT) { |
1da177e4 LT |
2724 | count = le16_to_cpu(cifs_acl->access_entry_count); |
2725 | size = sizeof(struct cifs_posix_acl); | |
2726 | size += sizeof(struct cifs_posix_ace) * count; | |
2727 | /* skip past access ACEs to get to default ACEs */ | |
2728 | pACE = &cifs_acl->ace_array[count]; | |
2729 | count = le16_to_cpu(cifs_acl->default_entry_count); | |
2730 | size += sizeof(struct cifs_posix_ace) * count; | |
2731 | /* check if we would go beyond end of SMB */ | |
790fe579 | 2732 | if (size_of_data_area < size) |
1da177e4 LT |
2733 | return -EINVAL; |
2734 | } else { | |
2735 | /* illegal type */ | |
2736 | return -EINVAL; | |
2737 | } | |
2738 | ||
2739 | size = posix_acl_xattr_size(count); | |
790fe579 | 2740 | if ((buflen == 0) || (local_acl == NULL)) { |
50c2f753 | 2741 | /* used to query ACL EA size */ |
790fe579 | 2742 | } else if (size > buflen) { |
1da177e4 LT |
2743 | return -ERANGE; |
2744 | } else /* buffer big enough */ { | |
ff7feac9 | 2745 | local_acl->a_version = cpu_to_le32(POSIX_ACL_XATTR_VERSION); |
50c2f753 SF |
2746 | for (i = 0; i < count ; i++) { |
2747 | cifs_convert_ace(&local_acl->a_entries[i], pACE); | |
2748 | pACE++; | |
1da177e4 LT |
2749 | } |
2750 | } | |
2751 | return size; | |
2752 | } | |
2753 | ||
50c2f753 SF |
2754 | static __u16 convert_ace_to_cifs_ace(struct cifs_posix_ace *cifs_ace, |
2755 | const posix_acl_xattr_entry *local_ace) | |
1da177e4 LT |
2756 | { |
2757 | __u16 rc = 0; /* 0 = ACL converted ok */ | |
2758 | ||
ff7feac9 SF |
2759 | cifs_ace->cifs_e_perm = le16_to_cpu(local_ace->e_perm); |
2760 | cifs_ace->cifs_e_tag = le16_to_cpu(local_ace->e_tag); | |
1da177e4 | 2761 | /* BB is there a better way to handle the large uid? */ |
790fe579 | 2762 | if (local_ace->e_id == cpu_to_le32(-1)) { |
1da177e4 LT |
2763 | /* Probably no need to le convert -1 on any arch but can not hurt */ |
2764 | cifs_ace->cifs_uid = cpu_to_le64(-1); | |
50c2f753 | 2765 | } else |
ff7feac9 | 2766 | cifs_ace->cifs_uid = cpu_to_le64(le32_to_cpu(local_ace->e_id)); |
50c2f753 | 2767 | /*cFYI(1,("perm %d tag %d id %d",ace->e_perm,ace->e_tag,ace->e_id));*/ |
1da177e4 LT |
2768 | return rc; |
2769 | } | |
2770 | ||
2771 | /* Convert ACL from local Linux POSIX xattr to CIFS POSIX ACL wire format */ | |
50c2f753 SF |
2772 | static __u16 ACL_to_cifs_posix(char *parm_data, const char *pACL, |
2773 | const int buflen, const int acl_type) | |
1da177e4 LT |
2774 | { |
2775 | __u16 rc = 0; | |
50c2f753 SF |
2776 | struct cifs_posix_acl *cifs_acl = (struct cifs_posix_acl *)parm_data; |
2777 | posix_acl_xattr_header *local_acl = (posix_acl_xattr_header *)pACL; | |
1da177e4 LT |
2778 | int count; |
2779 | int i; | |
2780 | ||
790fe579 | 2781 | if ((buflen == 0) || (pACL == NULL) || (cifs_acl == NULL)) |
1da177e4 LT |
2782 | return 0; |
2783 | ||
2784 | count = posix_acl_xattr_count((size_t)buflen); | |
c18c842b | 2785 | cFYI(1, ("setting acl with %d entries from buf of length %d and " |
63135e08 | 2786 | "version of %d", |
ff7feac9 | 2787 | count, buflen, le32_to_cpu(local_acl->a_version))); |
790fe579 | 2788 | if (le32_to_cpu(local_acl->a_version) != 2) { |
50c2f753 | 2789 | cFYI(1, ("unknown POSIX ACL version %d", |
ff7feac9 | 2790 | le32_to_cpu(local_acl->a_version))); |
1da177e4 LT |
2791 | return 0; |
2792 | } | |
2793 | cifs_acl->version = cpu_to_le16(1); | |
790fe579 | 2794 | if (acl_type == ACL_TYPE_ACCESS) |
ff7feac9 | 2795 | cifs_acl->access_entry_count = cpu_to_le16(count); |
790fe579 | 2796 | else if (acl_type == ACL_TYPE_DEFAULT) |
ff7feac9 | 2797 | cifs_acl->default_entry_count = cpu_to_le16(count); |
1da177e4 | 2798 | else { |
50c2f753 | 2799 | cFYI(1, ("unknown ACL type %d", acl_type)); |
1da177e4 LT |
2800 | return 0; |
2801 | } | |
50c2f753 | 2802 | for (i = 0; i < count; i++) { |
1da177e4 LT |
2803 | rc = convert_ace_to_cifs_ace(&cifs_acl->ace_array[i], |
2804 | &local_acl->a_entries[i]); | |
790fe579 | 2805 | if (rc != 0) { |
1da177e4 LT |
2806 | /* ACE not converted */ |
2807 | break; | |
2808 | } | |
2809 | } | |
790fe579 | 2810 | if (rc == 0) { |
1da177e4 LT |
2811 | rc = (__u16)(count * sizeof(struct cifs_posix_ace)); |
2812 | rc += sizeof(struct cifs_posix_acl); | |
2813 | /* BB add check to make sure ACL does not overflow SMB */ | |
2814 | } | |
2815 | return rc; | |
2816 | } | |
2817 | ||
2818 | int | |
2819 | CIFSSMBGetPosixACL(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 SF |
2820 | const unsigned char *searchName, |
2821 | char *acl_inf, const int buflen, const int acl_type, | |
2822 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
2823 | { |
2824 | /* SMB_QUERY_POSIX_ACL */ | |
2825 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
2826 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
2827 | int rc = 0; | |
2828 | int bytes_returned; | |
2829 | int name_len; | |
2830 | __u16 params, byte_count; | |
50c2f753 | 2831 | |
1da177e4 LT |
2832 | cFYI(1, ("In GetPosixACL (Unix) for path %s", searchName)); |
2833 | ||
2834 | queryAclRetry: | |
2835 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2836 | (void **) &pSMBr); | |
2837 | if (rc) | |
2838 | return rc; | |
50c2f753 | 2839 | |
1da177e4 LT |
2840 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
2841 | name_len = | |
50c2f753 | 2842 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 2843 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2844 | name_len++; /* trailing null */ |
2845 | name_len *= 2; | |
2846 | pSMB->FileName[name_len] = 0; | |
2847 | pSMB->FileName[name_len+1] = 0; | |
50c2f753 | 2848 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2849 | name_len = strnlen(searchName, PATH_MAX); |
2850 | name_len++; /* trailing null */ | |
2851 | strncpy(pSMB->FileName, searchName, name_len); | |
2852 | } | |
2853 | ||
2854 | params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ; | |
2855 | pSMB->TotalDataCount = 0; | |
2856 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
50c2f753 | 2857 | /* BB find exact max data count below from sess structure BB */ |
1da177e4 LT |
2858 | pSMB->MaxDataCount = cpu_to_le16(4000); |
2859 | pSMB->MaxSetupCount = 0; | |
2860 | pSMB->Reserved = 0; | |
2861 | pSMB->Flags = 0; | |
2862 | pSMB->Timeout = 0; | |
2863 | pSMB->Reserved2 = 0; | |
2864 | pSMB->ParameterOffset = cpu_to_le16( | |
50c2f753 SF |
2865 | offsetof(struct smb_com_transaction2_qpi_req, |
2866 | InformationLevel) - 4); | |
1da177e4 LT |
2867 | pSMB->DataCount = 0; |
2868 | pSMB->DataOffset = 0; | |
2869 | pSMB->SetupCount = 1; | |
2870 | pSMB->Reserved3 = 0; | |
2871 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
2872 | byte_count = params + 1 /* pad */ ; | |
2873 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
2874 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2875 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_POSIX_ACL); | |
2876 | pSMB->Reserved4 = 0; | |
2877 | pSMB->hdr.smb_buf_length += byte_count; | |
2878 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2879 | ||
2880 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2881 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
0a4b92c0 | 2882 | cifs_stats_inc(&tcon->num_acl_get); |
1da177e4 LT |
2883 | if (rc) { |
2884 | cFYI(1, ("Send error in Query POSIX ACL = %d", rc)); | |
2885 | } else { | |
2886 | /* decode response */ | |
50c2f753 | 2887 | |
1da177e4 LT |
2888 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
2889 | if (rc || (pSMBr->ByteCount < 2)) | |
2890 | /* BB also check enough total bytes returned */ | |
2891 | rc = -EIO; /* bad smb */ | |
2892 | else { | |
2893 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
2894 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); | |
2895 | rc = cifs_copy_posix_acl(acl_inf, | |
2896 | (char *)&pSMBr->hdr.Protocol+data_offset, | |
50c2f753 | 2897 | buflen, acl_type, count); |
1da177e4 LT |
2898 | } |
2899 | } | |
2900 | cifs_buf_release(pSMB); | |
2901 | if (rc == -EAGAIN) | |
2902 | goto queryAclRetry; | |
2903 | return rc; | |
2904 | } | |
2905 | ||
2906 | int | |
2907 | CIFSSMBSetPosixACL(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 SF |
2908 | const unsigned char *fileName, |
2909 | const char *local_acl, const int buflen, | |
2910 | const int acl_type, | |
2911 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
2912 | { |
2913 | struct smb_com_transaction2_spi_req *pSMB = NULL; | |
2914 | struct smb_com_transaction2_spi_rsp *pSMBr = NULL; | |
2915 | char *parm_data; | |
2916 | int name_len; | |
2917 | int rc = 0; | |
2918 | int bytes_returned = 0; | |
2919 | __u16 params, byte_count, data_count, param_offset, offset; | |
2920 | ||
2921 | cFYI(1, ("In SetPosixACL (Unix) for path %s", fileName)); | |
2922 | setAclRetry: | |
2923 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
50c2f753 | 2924 | (void **) &pSMBr); |
1da177e4 LT |
2925 | if (rc) |
2926 | return rc; | |
2927 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2928 | name_len = | |
50c2f753 | 2929 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 2930 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2931 | name_len++; /* trailing null */ |
2932 | name_len *= 2; | |
50c2f753 | 2933 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2934 | name_len = strnlen(fileName, PATH_MAX); |
2935 | name_len++; /* trailing null */ | |
2936 | strncpy(pSMB->FileName, fileName, name_len); | |
2937 | } | |
2938 | params = 6 + name_len; | |
2939 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
582d21e5 SF |
2940 | /* BB find max SMB size from sess */ |
2941 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1da177e4 LT |
2942 | pSMB->MaxSetupCount = 0; |
2943 | pSMB->Reserved = 0; | |
2944 | pSMB->Flags = 0; | |
2945 | pSMB->Timeout = 0; | |
2946 | pSMB->Reserved2 = 0; | |
2947 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 2948 | InformationLevel) - 4; |
1da177e4 LT |
2949 | offset = param_offset + params; |
2950 | parm_data = ((char *) &pSMB->hdr.Protocol) + offset; | |
2951 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
2952 | ||
2953 | /* convert to on the wire format for POSIX ACL */ | |
50c2f753 | 2954 | data_count = ACL_to_cifs_posix(parm_data, local_acl, buflen, acl_type); |
1da177e4 | 2955 | |
790fe579 | 2956 | if (data_count == 0) { |
1da177e4 LT |
2957 | rc = -EOPNOTSUPP; |
2958 | goto setACLerrorExit; | |
2959 | } | |
2960 | pSMB->DataOffset = cpu_to_le16(offset); | |
2961 | pSMB->SetupCount = 1; | |
2962 | pSMB->Reserved3 = 0; | |
2963 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
2964 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_POSIX_ACL); | |
2965 | byte_count = 3 /* pad */ + params + data_count; | |
2966 | pSMB->DataCount = cpu_to_le16(data_count); | |
2967 | pSMB->TotalDataCount = pSMB->DataCount; | |
2968 | pSMB->ParameterCount = cpu_to_le16(params); | |
2969 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
2970 | pSMB->Reserved4 = 0; | |
2971 | pSMB->hdr.smb_buf_length += byte_count; | |
2972 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2973 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
50c2f753 | 2974 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
ad7a2926 | 2975 | if (rc) |
1da177e4 | 2976 | cFYI(1, ("Set POSIX ACL returned %d", rc)); |
1da177e4 LT |
2977 | |
2978 | setACLerrorExit: | |
2979 | cifs_buf_release(pSMB); | |
2980 | if (rc == -EAGAIN) | |
2981 | goto setAclRetry; | |
2982 | return rc; | |
2983 | } | |
2984 | ||
f654bac2 SF |
2985 | /* BB fix tabs in this function FIXME BB */ |
2986 | int | |
2987 | CIFSGetExtAttr(const int xid, struct cifsTconInfo *tcon, | |
ad7a2926 | 2988 | const int netfid, __u64 *pExtAttrBits, __u64 *pMask) |
f654bac2 | 2989 | { |
50c2f753 SF |
2990 | int rc = 0; |
2991 | struct smb_t2_qfi_req *pSMB = NULL; | |
2992 | struct smb_t2_qfi_rsp *pSMBr = NULL; | |
2993 | int bytes_returned; | |
2994 | __u16 params, byte_count; | |
f654bac2 | 2995 | |
790fe579 SF |
2996 | cFYI(1, ("In GetExtAttr")); |
2997 | if (tcon == NULL) | |
2998 | return -ENODEV; | |
f654bac2 SF |
2999 | |
3000 | GetExtAttrRetry: | |
790fe579 SF |
3001 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
3002 | (void **) &pSMBr); | |
3003 | if (rc) | |
3004 | return rc; | |
f654bac2 | 3005 | |
ad7a2926 | 3006 | params = 2 /* level */ + 2 /* fid */; |
790fe579 SF |
3007 | pSMB->t2.TotalDataCount = 0; |
3008 | pSMB->t2.MaxParameterCount = cpu_to_le16(4); | |
3009 | /* BB find exact max data count below from sess structure BB */ | |
3010 | pSMB->t2.MaxDataCount = cpu_to_le16(4000); | |
3011 | pSMB->t2.MaxSetupCount = 0; | |
3012 | pSMB->t2.Reserved = 0; | |
3013 | pSMB->t2.Flags = 0; | |
3014 | pSMB->t2.Timeout = 0; | |
3015 | pSMB->t2.Reserved2 = 0; | |
3016 | pSMB->t2.ParameterOffset = cpu_to_le16(offsetof(struct smb_t2_qfi_req, | |
3017 | Fid) - 4); | |
3018 | pSMB->t2.DataCount = 0; | |
3019 | pSMB->t2.DataOffset = 0; | |
3020 | pSMB->t2.SetupCount = 1; | |
3021 | pSMB->t2.Reserved3 = 0; | |
3022 | pSMB->t2.SubCommand = cpu_to_le16(TRANS2_QUERY_FILE_INFORMATION); | |
3023 | byte_count = params + 1 /* pad */ ; | |
3024 | pSMB->t2.TotalParameterCount = cpu_to_le16(params); | |
3025 | pSMB->t2.ParameterCount = pSMB->t2.TotalParameterCount; | |
3026 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_ATTR_FLAGS); | |
3027 | pSMB->Pad = 0; | |
f654bac2 | 3028 | pSMB->Fid = netfid; |
790fe579 SF |
3029 | pSMB->hdr.smb_buf_length += byte_count; |
3030 | pSMB->t2.ByteCount = cpu_to_le16(byte_count); | |
3031 | ||
3032 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3033 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3034 | if (rc) { | |
3035 | cFYI(1, ("error %d in GetExtAttr", rc)); | |
3036 | } else { | |
3037 | /* decode response */ | |
3038 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3039 | if (rc || (pSMBr->ByteCount < 2)) | |
3040 | /* BB also check enough total bytes returned */ | |
3041 | /* If rc should we check for EOPNOSUPP and | |
3042 | disable the srvino flag? or in caller? */ | |
3043 | rc = -EIO; /* bad smb */ | |
3044 | else { | |
3045 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
3046 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); | |
3047 | struct file_chattr_info *pfinfo; | |
3048 | /* BB Do we need a cast or hash here ? */ | |
3049 | if (count != 16) { | |
3050 | cFYI(1, ("Illegal size ret in GetExtAttr")); | |
3051 | rc = -EIO; | |
3052 | goto GetExtAttrOut; | |
3053 | } | |
3054 | pfinfo = (struct file_chattr_info *) | |
3055 | (data_offset + (char *) &pSMBr->hdr.Protocol); | |
3056 | *pExtAttrBits = le64_to_cpu(pfinfo->mode); | |
f654bac2 | 3057 | *pMask = le64_to_cpu(pfinfo->mask); |
790fe579 SF |
3058 | } |
3059 | } | |
f654bac2 | 3060 | GetExtAttrOut: |
790fe579 SF |
3061 | cifs_buf_release(pSMB); |
3062 | if (rc == -EAGAIN) | |
3063 | goto GetExtAttrRetry; | |
3064 | return rc; | |
f654bac2 SF |
3065 | } |
3066 | ||
f654bac2 | 3067 | #endif /* CONFIG_POSIX */ |
1da177e4 | 3068 | |
297647c2 | 3069 | #ifdef CONFIG_CIFS_EXPERIMENTAL |
0a4b92c0 SF |
3070 | /* Get Security Descriptor (by handle) from remote server for a file or dir */ |
3071 | int | |
3072 | CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid, | |
630f3f0c | 3073 | struct cifs_ntsd **acl_inf, __u32 *pbuflen) |
0a4b92c0 SF |
3074 | { |
3075 | int rc = 0; | |
3076 | int buf_type = 0; | |
ad7a2926 | 3077 | QUERY_SEC_DESC_REQ *pSMB; |
0a4b92c0 SF |
3078 | struct kvec iov[1]; |
3079 | ||
3080 | cFYI(1, ("GetCifsACL")); | |
3081 | ||
630f3f0c SF |
3082 | *pbuflen = 0; |
3083 | *acl_inf = NULL; | |
3084 | ||
b9c7a2bb | 3085 | rc = smb_init_nttransact(NT_TRANSACT_QUERY_SECURITY_DESC, 0, |
0a4b92c0 SF |
3086 | 8 /* parm len */, tcon, (void **) &pSMB); |
3087 | if (rc) | |
3088 | return rc; | |
3089 | ||
3090 | pSMB->MaxParameterCount = cpu_to_le32(4); | |
3091 | /* BB TEST with big acls that might need to be e.g. larger than 16K */ | |
3092 | pSMB->MaxSetupCount = 0; | |
3093 | pSMB->Fid = fid; /* file handle always le */ | |
3094 | pSMB->AclFlags = cpu_to_le32(CIFS_ACL_OWNER | CIFS_ACL_GROUP | | |
3095 | CIFS_ACL_DACL); | |
3096 | pSMB->ByteCount = cpu_to_le16(11); /* 3 bytes pad + 8 bytes parm */ | |
3097 | pSMB->hdr.smb_buf_length += 11; | |
3098 | iov[0].iov_base = (char *)pSMB; | |
3099 | iov[0].iov_len = pSMB->hdr.smb_buf_length + 4; | |
3100 | ||
a761ac57 | 3101 | rc = SendReceive2(xid, tcon->ses, iov, 1 /* num iovec */, &buf_type, |
133672ef | 3102 | CIFS_STD_OP); |
0a4b92c0 SF |
3103 | cifs_stats_inc(&tcon->num_acl_get); |
3104 | if (rc) { | |
3105 | cFYI(1, ("Send error in QuerySecDesc = %d", rc)); | |
3106 | } else { /* decode response */ | |
ad7a2926 | 3107 | __le32 *parm; |
630f3f0c SF |
3108 | __u32 parm_len; |
3109 | __u32 acl_len; | |
50c2f753 | 3110 | struct smb_com_ntransact_rsp *pSMBr; |
630f3f0c | 3111 | char *pdata; |
0a4b92c0 SF |
3112 | |
3113 | /* validate_nttransact */ | |
50c2f753 | 3114 | rc = validate_ntransact(iov[0].iov_base, (char **)&parm, |
630f3f0c | 3115 | &pdata, &parm_len, pbuflen); |
790fe579 | 3116 | if (rc) |
0a4b92c0 SF |
3117 | goto qsec_out; |
3118 | pSMBr = (struct smb_com_ntransact_rsp *)iov[0].iov_base; | |
3119 | ||
630f3f0c | 3120 | cFYI(1, ("smb %p parm %p data %p", pSMBr, parm, *acl_inf)); |
0a4b92c0 SF |
3121 | |
3122 | if (le32_to_cpu(pSMBr->ParameterCount) != 4) { | |
3123 | rc = -EIO; /* bad smb */ | |
630f3f0c | 3124 | *pbuflen = 0; |
0a4b92c0 SF |
3125 | goto qsec_out; |
3126 | } | |
3127 | ||
3128 | /* BB check that data area is minimum length and as big as acl_len */ | |
3129 | ||
af6f4612 | 3130 | acl_len = le32_to_cpu(*parm); |
630f3f0c SF |
3131 | if (acl_len != *pbuflen) { |
3132 | cERROR(1, ("acl length %d does not match %d", | |
3133 | acl_len, *pbuflen)); | |
3134 | if (*pbuflen > acl_len) | |
3135 | *pbuflen = acl_len; | |
3136 | } | |
0a4b92c0 | 3137 | |
630f3f0c SF |
3138 | /* check if buffer is big enough for the acl |
3139 | header followed by the smallest SID */ | |
3140 | if ((*pbuflen < sizeof(struct cifs_ntsd) + 8) || | |
3141 | (*pbuflen >= 64 * 1024)) { | |
3142 | cERROR(1, ("bad acl length %d", *pbuflen)); | |
3143 | rc = -EINVAL; | |
3144 | *pbuflen = 0; | |
3145 | } else { | |
3146 | *acl_inf = kmalloc(*pbuflen, GFP_KERNEL); | |
3147 | if (*acl_inf == NULL) { | |
3148 | *pbuflen = 0; | |
3149 | rc = -ENOMEM; | |
3150 | } | |
3151 | memcpy(*acl_inf, pdata, *pbuflen); | |
3152 | } | |
0a4b92c0 SF |
3153 | } |
3154 | qsec_out: | |
790fe579 | 3155 | if (buf_type == CIFS_SMALL_BUFFER) |
0a4b92c0 | 3156 | cifs_small_buf_release(iov[0].iov_base); |
790fe579 | 3157 | else if (buf_type == CIFS_LARGE_BUFFER) |
0a4b92c0 | 3158 | cifs_buf_release(iov[0].iov_base); |
4b8f930f | 3159 | /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */ |
0a4b92c0 SF |
3160 | return rc; |
3161 | } | |
97837582 SF |
3162 | |
3163 | int | |
3164 | CIFSSMBSetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid, | |
3165 | struct cifs_ntsd *pntsd, __u32 acllen) | |
3166 | { | |
3167 | __u16 byte_count, param_count, data_count, param_offset, data_offset; | |
3168 | int rc = 0; | |
3169 | int bytes_returned = 0; | |
3170 | SET_SEC_DESC_REQ *pSMB = NULL; | |
3171 | NTRANSACT_RSP *pSMBr = NULL; | |
3172 | ||
3173 | setCifsAclRetry: | |
3174 | rc = smb_init(SMB_COM_NT_TRANSACT, 19, tcon, (void **) &pSMB, | |
3175 | (void **) &pSMBr); | |
3176 | if (rc) | |
3177 | return (rc); | |
3178 | ||
3179 | pSMB->MaxSetupCount = 0; | |
3180 | pSMB->Reserved = 0; | |
3181 | ||
3182 | param_count = 8; | |
3183 | param_offset = offsetof(struct smb_com_transaction_ssec_req, Fid) - 4; | |
3184 | data_count = acllen; | |
3185 | data_offset = param_offset + param_count; | |
3186 | byte_count = 3 /* pad */ + param_count; | |
3187 | ||
3188 | pSMB->DataCount = cpu_to_le32(data_count); | |
3189 | pSMB->TotalDataCount = pSMB->DataCount; | |
3190 | pSMB->MaxParameterCount = cpu_to_le32(4); | |
3191 | pSMB->MaxDataCount = cpu_to_le32(16384); | |
3192 | pSMB->ParameterCount = cpu_to_le32(param_count); | |
3193 | pSMB->ParameterOffset = cpu_to_le32(param_offset); | |
3194 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
3195 | pSMB->DataOffset = cpu_to_le32(data_offset); | |
3196 | pSMB->SetupCount = 0; | |
3197 | pSMB->SubCommand = cpu_to_le16(NT_TRANSACT_SET_SECURITY_DESC); | |
3198 | pSMB->ByteCount = cpu_to_le16(byte_count+data_count); | |
3199 | ||
3200 | pSMB->Fid = fid; /* file handle always le */ | |
3201 | pSMB->Reserved2 = 0; | |
3202 | pSMB->AclFlags = cpu_to_le32(CIFS_ACL_DACL); | |
3203 | ||
3204 | if (pntsd && acllen) { | |
3205 | memcpy((char *) &pSMBr->hdr.Protocol + data_offset, | |
3206 | (char *) pntsd, | |
3207 | acllen); | |
3208 | pSMB->hdr.smb_buf_length += (byte_count + data_count); | |
3209 | ||
3210 | } else | |
3211 | pSMB->hdr.smb_buf_length += byte_count; | |
3212 | ||
3213 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3214 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3215 | ||
3216 | cFYI(1, ("SetCIFSACL bytes_returned: %d, rc: %d", bytes_returned, rc)); | |
3217 | if (rc) | |
3218 | cFYI(1, ("Set CIFS ACL returned %d", rc)); | |
3219 | cifs_buf_release(pSMB); | |
3220 | ||
3221 | if (rc == -EAGAIN) | |
3222 | goto setCifsAclRetry; | |
3223 | ||
3224 | return (rc); | |
3225 | } | |
3226 | ||
297647c2 | 3227 | #endif /* CONFIG_CIFS_EXPERIMENTAL */ |
0a4b92c0 | 3228 | |
6b8edfe0 SF |
3229 | /* Legacy Query Path Information call for lookup to old servers such |
3230 | as Win9x/WinME */ | |
3231 | int SMBQueryInformation(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 SF |
3232 | const unsigned char *searchName, |
3233 | FILE_ALL_INFO *pFinfo, | |
3234 | const struct nls_table *nls_codepage, int remap) | |
6b8edfe0 | 3235 | { |
ad7a2926 SF |
3236 | QUERY_INFORMATION_REQ *pSMB; |
3237 | QUERY_INFORMATION_RSP *pSMBr; | |
6b8edfe0 SF |
3238 | int rc = 0; |
3239 | int bytes_returned; | |
3240 | int name_len; | |
3241 | ||
50c2f753 | 3242 | cFYI(1, ("In SMBQPath path %s", searchName)); |
6b8edfe0 SF |
3243 | QInfRetry: |
3244 | rc = smb_init(SMB_COM_QUERY_INFORMATION, 0, tcon, (void **) &pSMB, | |
50c2f753 | 3245 | (void **) &pSMBr); |
6b8edfe0 SF |
3246 | if (rc) |
3247 | return rc; | |
3248 | ||
3249 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3250 | name_len = | |
50c2f753 SF |
3251 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
3252 | PATH_MAX, nls_codepage, remap); | |
6b8edfe0 SF |
3253 | name_len++; /* trailing null */ |
3254 | name_len *= 2; | |
50c2f753 | 3255 | } else { |
6b8edfe0 SF |
3256 | name_len = strnlen(searchName, PATH_MAX); |
3257 | name_len++; /* trailing null */ | |
3258 | strncpy(pSMB->FileName, searchName, name_len); | |
3259 | } | |
3260 | pSMB->BufferFormat = 0x04; | |
50c2f753 | 3261 | name_len++; /* account for buffer type byte */ |
6b8edfe0 SF |
3262 | pSMB->hdr.smb_buf_length += (__u16) name_len; |
3263 | pSMB->ByteCount = cpu_to_le16(name_len); | |
3264 | ||
3265 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
50c2f753 | 3266 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
6b8edfe0 SF |
3267 | if (rc) { |
3268 | cFYI(1, ("Send error in QueryInfo = %d", rc)); | |
ad7a2926 | 3269 | } else if (pFinfo) { |
1bd5bbcb SF |
3270 | struct timespec ts; |
3271 | __u32 time = le32_to_cpu(pSMBr->last_write_time); | |
ad7a2926 SF |
3272 | |
3273 | /* decode response */ | |
1bd5bbcb | 3274 | /* BB FIXME - add time zone adjustment BB */ |
6b8edfe0 | 3275 | memset(pFinfo, 0, sizeof(FILE_ALL_INFO)); |
1bd5bbcb SF |
3276 | ts.tv_nsec = 0; |
3277 | ts.tv_sec = time; | |
3278 | /* decode time fields */ | |
733f99ac | 3279 | pFinfo->ChangeTime = cpu_to_le64(cifs_UnixTimeToNT(ts)); |
1bd5bbcb SF |
3280 | pFinfo->LastWriteTime = pFinfo->ChangeTime; |
3281 | pFinfo->LastAccessTime = 0; | |
70ca734a SF |
3282 | pFinfo->AllocationSize = |
3283 | cpu_to_le64(le32_to_cpu(pSMBr->size)); | |
3284 | pFinfo->EndOfFile = pFinfo->AllocationSize; | |
3285 | pFinfo->Attributes = | |
3286 | cpu_to_le32(le16_to_cpu(pSMBr->attr)); | |
6b8edfe0 SF |
3287 | } else |
3288 | rc = -EIO; /* bad buffer passed in */ | |
3289 | ||
3290 | cifs_buf_release(pSMB); | |
3291 | ||
3292 | if (rc == -EAGAIN) | |
3293 | goto QInfRetry; | |
3294 | ||
3295 | return rc; | |
3296 | } | |
3297 | ||
3298 | ||
3299 | ||
3300 | ||
1da177e4 LT |
3301 | int |
3302 | CIFSSMBQPathInfo(const int xid, struct cifsTconInfo *tcon, | |
3303 | const unsigned char *searchName, | |
ad7a2926 | 3304 | FILE_ALL_INFO *pFindData, |
acf1a1b1 | 3305 | int legacy /* old style infolevel */, |
737b758c | 3306 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
3307 | { |
3308 | /* level 263 SMB_QUERY_FILE_ALL_INFO */ | |
3309 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
3310 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
3311 | int rc = 0; | |
3312 | int bytes_returned; | |
3313 | int name_len; | |
3314 | __u16 params, byte_count; | |
3315 | ||
3316 | /* cFYI(1, ("In QPathInfo path %s", searchName)); */ | |
3317 | QPathInfoRetry: | |
3318 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3319 | (void **) &pSMBr); | |
3320 | if (rc) | |
3321 | return rc; | |
3322 | ||
3323 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3324 | name_len = | |
50c2f753 | 3325 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 3326 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
3327 | name_len++; /* trailing null */ |
3328 | name_len *= 2; | |
50c2f753 | 3329 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
3330 | name_len = strnlen(searchName, PATH_MAX); |
3331 | name_len++; /* trailing null */ | |
3332 | strncpy(pSMB->FileName, searchName, name_len); | |
3333 | } | |
3334 | ||
50c2f753 | 3335 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */; |
1da177e4 LT |
3336 | pSMB->TotalDataCount = 0; |
3337 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
582d21e5 SF |
3338 | /* BB find exact max SMB PDU from sess structure BB */ |
3339 | pSMB->MaxDataCount = cpu_to_le16(4000); | |
1da177e4 LT |
3340 | pSMB->MaxSetupCount = 0; |
3341 | pSMB->Reserved = 0; | |
3342 | pSMB->Flags = 0; | |
3343 | pSMB->Timeout = 0; | |
3344 | pSMB->Reserved2 = 0; | |
3345 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 3346 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
1da177e4 LT |
3347 | pSMB->DataCount = 0; |
3348 | pSMB->DataOffset = 0; | |
3349 | pSMB->SetupCount = 1; | |
3350 | pSMB->Reserved3 = 0; | |
3351 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
3352 | byte_count = params + 1 /* pad */ ; | |
3353 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3354 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
790fe579 | 3355 | if (legacy) |
acf1a1b1 SF |
3356 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_STANDARD); |
3357 | else | |
3358 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_ALL_INFO); | |
1da177e4 LT |
3359 | pSMB->Reserved4 = 0; |
3360 | pSMB->hdr.smb_buf_length += byte_count; | |
3361 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3362 | ||
3363 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3364 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3365 | if (rc) { | |
3366 | cFYI(1, ("Send error in QPathInfo = %d", rc)); | |
3367 | } else { /* decode response */ | |
3368 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3369 | ||
acf1a1b1 SF |
3370 | if (rc) /* BB add auto retry on EOPNOTSUPP? */ |
3371 | rc = -EIO; | |
50c2f753 | 3372 | else if (!legacy && (pSMBr->ByteCount < 40)) |
1da177e4 | 3373 | rc = -EIO; /* bad smb */ |
790fe579 | 3374 | else if (legacy && (pSMBr->ByteCount < 24)) |
50c2f753 SF |
3375 | rc = -EIO; /* 24 or 26 expected but we do not read |
3376 | last field */ | |
3377 | else if (pFindData) { | |
acf1a1b1 | 3378 | int size; |
1da177e4 | 3379 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
ad7a2926 SF |
3380 | |
3381 | /* On legacy responses we do not read the last field, | |
3382 | EAsize, fortunately since it varies by subdialect and | |
3383 | also note it differs on Set vs. Get, ie two bytes or 4 | |
3384 | bytes depending but we don't care here */ | |
3385 | if (legacy) | |
acf1a1b1 SF |
3386 | size = sizeof(FILE_INFO_STANDARD); |
3387 | else | |
3388 | size = sizeof(FILE_ALL_INFO); | |
1da177e4 LT |
3389 | memcpy((char *) pFindData, |
3390 | (char *) &pSMBr->hdr.Protocol + | |
acf1a1b1 | 3391 | data_offset, size); |
1da177e4 LT |
3392 | } else |
3393 | rc = -ENOMEM; | |
3394 | } | |
3395 | cifs_buf_release(pSMB); | |
3396 | if (rc == -EAGAIN) | |
3397 | goto QPathInfoRetry; | |
3398 | ||
3399 | return rc; | |
3400 | } | |
3401 | ||
3402 | int | |
3403 | CIFSSMBUnixQPathInfo(const int xid, struct cifsTconInfo *tcon, | |
3404 | const unsigned char *searchName, | |
582d21e5 | 3405 | FILE_UNIX_BASIC_INFO *pFindData, |
737b758c | 3406 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
3407 | { |
3408 | /* SMB_QUERY_FILE_UNIX_BASIC */ | |
3409 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
3410 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
3411 | int rc = 0; | |
3412 | int bytes_returned = 0; | |
3413 | int name_len; | |
3414 | __u16 params, byte_count; | |
3415 | ||
3416 | cFYI(1, ("In QPathInfo (Unix) the path %s", searchName)); | |
3417 | UnixQPathInfoRetry: | |
3418 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3419 | (void **) &pSMBr); | |
3420 | if (rc) | |
3421 | return rc; | |
3422 | ||
3423 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3424 | name_len = | |
b1a45695 | 3425 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 3426 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
3427 | name_len++; /* trailing null */ |
3428 | name_len *= 2; | |
50c2f753 | 3429 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
3430 | name_len = strnlen(searchName, PATH_MAX); |
3431 | name_len++; /* trailing null */ | |
3432 | strncpy(pSMB->FileName, searchName, name_len); | |
3433 | } | |
3434 | ||
50c2f753 | 3435 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */; |
1da177e4 LT |
3436 | pSMB->TotalDataCount = 0; |
3437 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3438 | /* BB find exact max SMB PDU from sess structure BB */ | |
50c2f753 | 3439 | pSMB->MaxDataCount = cpu_to_le16(4000); |
1da177e4 LT |
3440 | pSMB->MaxSetupCount = 0; |
3441 | pSMB->Reserved = 0; | |
3442 | pSMB->Flags = 0; | |
3443 | pSMB->Timeout = 0; | |
3444 | pSMB->Reserved2 = 0; | |
3445 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 3446 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
1da177e4 LT |
3447 | pSMB->DataCount = 0; |
3448 | pSMB->DataOffset = 0; | |
3449 | pSMB->SetupCount = 1; | |
3450 | pSMB->Reserved3 = 0; | |
3451 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
3452 | byte_count = params + 1 /* pad */ ; | |
3453 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3454 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3455 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_UNIX_BASIC); | |
3456 | pSMB->Reserved4 = 0; | |
3457 | pSMB->hdr.smb_buf_length += byte_count; | |
3458 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3459 | ||
3460 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3461 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3462 | if (rc) { | |
3463 | cFYI(1, ("Send error in QPathInfo = %d", rc)); | |
3464 | } else { /* decode response */ | |
3465 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3466 | ||
3467 | if (rc || (pSMBr->ByteCount < sizeof(FILE_UNIX_BASIC_INFO))) { | |
1e71f25d SF |
3468 | cERROR(1, ("Malformed FILE_UNIX_BASIC_INFO response.\n" |
3469 | "Unix Extensions can be disabled on mount " | |
3470 | "by specifying the nosfu mount option.")); | |
1da177e4 LT |
3471 | rc = -EIO; /* bad smb */ |
3472 | } else { | |
3473 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
3474 | memcpy((char *) pFindData, | |
3475 | (char *) &pSMBr->hdr.Protocol + | |
3476 | data_offset, | |
630f3f0c | 3477 | sizeof(FILE_UNIX_BASIC_INFO)); |
1da177e4 LT |
3478 | } |
3479 | } | |
3480 | cifs_buf_release(pSMB); | |
3481 | if (rc == -EAGAIN) | |
3482 | goto UnixQPathInfoRetry; | |
3483 | ||
3484 | return rc; | |
3485 | } | |
3486 | ||
1da177e4 LT |
3487 | /* xid, tcon, searchName and codepage are input parms, rest are returned */ |
3488 | int | |
3489 | CIFSFindFirst(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 | 3490 | const char *searchName, |
1da177e4 | 3491 | const struct nls_table *nls_codepage, |
50c2f753 SF |
3492 | __u16 *pnetfid, |
3493 | struct cifs_search_info *psrch_inf, int remap, const char dirsep) | |
1da177e4 LT |
3494 | { |
3495 | /* level 257 SMB_ */ | |
3496 | TRANSACTION2_FFIRST_REQ *pSMB = NULL; | |
3497 | TRANSACTION2_FFIRST_RSP *pSMBr = NULL; | |
ad7a2926 | 3498 | T2_FFIRST_RSP_PARMS *parms; |
1da177e4 LT |
3499 | int rc = 0; |
3500 | int bytes_returned = 0; | |
3501 | int name_len; | |
3502 | __u16 params, byte_count; | |
3503 | ||
50c2f753 | 3504 | cFYI(1, ("In FindFirst for %s", searchName)); |
1da177e4 LT |
3505 | |
3506 | findFirstRetry: | |
3507 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3508 | (void **) &pSMBr); | |
3509 | if (rc) | |
3510 | return rc; | |
3511 | ||
3512 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3513 | name_len = | |
50c2f753 | 3514 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c SF |
3515 | PATH_MAX, nls_codepage, remap); |
3516 | /* We can not add the asterik earlier in case | |
3517 | it got remapped to 0xF03A as if it were part of the | |
3518 | directory name instead of a wildcard */ | |
1da177e4 | 3519 | name_len *= 2; |
ac67055e | 3520 | pSMB->FileName[name_len] = dirsep; |
737b758c SF |
3521 | pSMB->FileName[name_len+1] = 0; |
3522 | pSMB->FileName[name_len+2] = '*'; | |
3523 | pSMB->FileName[name_len+3] = 0; | |
3524 | name_len += 4; /* now the trailing null */ | |
1da177e4 LT |
3525 | pSMB->FileName[name_len] = 0; /* null terminate just in case */ |
3526 | pSMB->FileName[name_len+1] = 0; | |
737b758c | 3527 | name_len += 2; |
1da177e4 LT |
3528 | } else { /* BB add check for overrun of SMB buf BB */ |
3529 | name_len = strnlen(searchName, PATH_MAX); | |
1da177e4 | 3530 | /* BB fix here and in unicode clause above ie |
790fe579 | 3531 | if (name_len > buffersize-header) |
1da177e4 LT |
3532 | free buffer exit; BB */ |
3533 | strncpy(pSMB->FileName, searchName, name_len); | |
ac67055e | 3534 | pSMB->FileName[name_len] = dirsep; |
68575476 SF |
3535 | pSMB->FileName[name_len+1] = '*'; |
3536 | pSMB->FileName[name_len+2] = 0; | |
3537 | name_len += 3; | |
1da177e4 LT |
3538 | } |
3539 | ||
3540 | params = 12 + name_len /* includes null */ ; | |
3541 | pSMB->TotalDataCount = 0; /* no EAs */ | |
3542 | pSMB->MaxParameterCount = cpu_to_le16(10); | |
3543 | pSMB->MaxDataCount = cpu_to_le16((tcon->ses->server->maxBuf - | |
3544 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
3545 | pSMB->MaxSetupCount = 0; | |
3546 | pSMB->Reserved = 0; | |
3547 | pSMB->Flags = 0; | |
3548 | pSMB->Timeout = 0; | |
3549 | pSMB->Reserved2 = 0; | |
3550 | byte_count = params + 1 /* pad */ ; | |
3551 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3552 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3553 | pSMB->ParameterOffset = cpu_to_le16( | |
88274815 SF |
3554 | offsetof(struct smb_com_transaction2_ffirst_req, SearchAttributes) |
3555 | - 4); | |
1da177e4 LT |
3556 | pSMB->DataCount = 0; |
3557 | pSMB->DataOffset = 0; | |
3558 | pSMB->SetupCount = 1; /* one byte, no need to make endian neutral */ | |
3559 | pSMB->Reserved3 = 0; | |
3560 | pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_FIRST); | |
3561 | pSMB->SearchAttributes = | |
3562 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | | |
3563 | ATTR_DIRECTORY); | |
50c2f753 SF |
3564 | pSMB->SearchCount = cpu_to_le16(CIFSMaxBufSize/sizeof(FILE_UNIX_INFO)); |
3565 | pSMB->SearchFlags = cpu_to_le16(CIFS_SEARCH_CLOSE_AT_END | | |
1da177e4 LT |
3566 | CIFS_SEARCH_RETURN_RESUME); |
3567 | pSMB->InformationLevel = cpu_to_le16(psrch_inf->info_level); | |
3568 | ||
3569 | /* BB what should we set StorageType to? Does it matter? BB */ | |
3570 | pSMB->SearchStorageType = 0; | |
3571 | pSMB->hdr.smb_buf_length += byte_count; | |
3572 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3573 | ||
3574 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3575 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 3576 | cifs_stats_inc(&tcon->num_ffirst); |
1da177e4 | 3577 | |
88274815 SF |
3578 | if (rc) {/* BB add logic to retry regular search if Unix search |
3579 | rejected unexpectedly by server */ | |
1da177e4 LT |
3580 | /* BB Add code to handle unsupported level rc */ |
3581 | cFYI(1, ("Error in FindFirst = %d", rc)); | |
1982c344 | 3582 | |
88274815 | 3583 | cifs_buf_release(pSMB); |
1da177e4 LT |
3584 | |
3585 | /* BB eventually could optimize out free and realloc of buf */ | |
3586 | /* for this case */ | |
3587 | if (rc == -EAGAIN) | |
3588 | goto findFirstRetry; | |
3589 | } else { /* decode response */ | |
3590 | /* BB remember to free buffer if error BB */ | |
3591 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
790fe579 | 3592 | if (rc == 0) { |
b77d753c SF |
3593 | unsigned int lnoff; |
3594 | ||
1da177e4 | 3595 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) |
4b18f2a9 | 3596 | psrch_inf->unicode = true; |
1da177e4 | 3597 | else |
4b18f2a9 | 3598 | psrch_inf->unicode = false; |
1da177e4 LT |
3599 | |
3600 | psrch_inf->ntwrk_buf_start = (char *)pSMBr; | |
d47d7c1a | 3601 | psrch_inf->smallBuf = 0; |
50c2f753 SF |
3602 | psrch_inf->srch_entries_start = |
3603 | (char *) &pSMBr->hdr.Protocol + | |
1da177e4 | 3604 | le16_to_cpu(pSMBr->t2.DataOffset); |
1da177e4 LT |
3605 | parms = (T2_FFIRST_RSP_PARMS *)((char *) &pSMBr->hdr.Protocol + |
3606 | le16_to_cpu(pSMBr->t2.ParameterOffset)); | |
3607 | ||
790fe579 | 3608 | if (parms->EndofSearch) |
4b18f2a9 | 3609 | psrch_inf->endOfSearch = true; |
1da177e4 | 3610 | else |
4b18f2a9 | 3611 | psrch_inf->endOfSearch = false; |
1da177e4 | 3612 | |
50c2f753 SF |
3613 | psrch_inf->entries_in_buffer = |
3614 | le16_to_cpu(parms->SearchCount); | |
60808233 | 3615 | psrch_inf->index_of_last_entry = 2 /* skip . and .. */ + |
1da177e4 | 3616 | psrch_inf->entries_in_buffer; |
b77d753c SF |
3617 | lnoff = le16_to_cpu(parms->LastNameOffset); |
3618 | if (tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE < | |
3619 | lnoff) { | |
3620 | cERROR(1, ("ignoring corrupt resume name")); | |
3621 | psrch_inf->last_entry = NULL; | |
3622 | return rc; | |
3623 | } | |
3624 | ||
0752f152 | 3625 | psrch_inf->last_entry = psrch_inf->srch_entries_start + |
b77d753c SF |
3626 | lnoff; |
3627 | ||
1da177e4 LT |
3628 | *pnetfid = parms->SearchHandle; |
3629 | } else { | |
3630 | cifs_buf_release(pSMB); | |
3631 | } | |
3632 | } | |
3633 | ||
3634 | return rc; | |
3635 | } | |
3636 | ||
3637 | int CIFSFindNext(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 | 3638 | __u16 searchHandle, struct cifs_search_info *psrch_inf) |
1da177e4 LT |
3639 | { |
3640 | TRANSACTION2_FNEXT_REQ *pSMB = NULL; | |
3641 | TRANSACTION2_FNEXT_RSP *pSMBr = NULL; | |
ad7a2926 | 3642 | T2_FNEXT_RSP_PARMS *parms; |
1da177e4 LT |
3643 | char *response_data; |
3644 | int rc = 0; | |
3645 | int bytes_returned, name_len; | |
3646 | __u16 params, byte_count; | |
3647 | ||
3648 | cFYI(1, ("In FindNext")); | |
3649 | ||
4b18f2a9 | 3650 | if (psrch_inf->endOfSearch) |
1da177e4 LT |
3651 | return -ENOENT; |
3652 | ||
3653 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3654 | (void **) &pSMBr); | |
3655 | if (rc) | |
3656 | return rc; | |
3657 | ||
50c2f753 | 3658 | params = 14; /* includes 2 bytes of null string, converted to LE below*/ |
1da177e4 LT |
3659 | byte_count = 0; |
3660 | pSMB->TotalDataCount = 0; /* no EAs */ | |
3661 | pSMB->MaxParameterCount = cpu_to_le16(8); | |
3662 | pSMB->MaxDataCount = | |
50c2f753 SF |
3663 | cpu_to_le16((tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) & |
3664 | 0xFFFFFF00); | |
1da177e4 LT |
3665 | pSMB->MaxSetupCount = 0; |
3666 | pSMB->Reserved = 0; | |
3667 | pSMB->Flags = 0; | |
3668 | pSMB->Timeout = 0; | |
3669 | pSMB->Reserved2 = 0; | |
3670 | pSMB->ParameterOffset = cpu_to_le16( | |
3671 | offsetof(struct smb_com_transaction2_fnext_req,SearchHandle) - 4); | |
3672 | pSMB->DataCount = 0; | |
3673 | pSMB->DataOffset = 0; | |
3674 | pSMB->SetupCount = 1; | |
3675 | pSMB->Reserved3 = 0; | |
3676 | pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_NEXT); | |
3677 | pSMB->SearchHandle = searchHandle; /* always kept as le */ | |
3678 | pSMB->SearchCount = | |
630f3f0c | 3679 | cpu_to_le16(CIFSMaxBufSize / sizeof(FILE_UNIX_INFO)); |
1da177e4 LT |
3680 | pSMB->InformationLevel = cpu_to_le16(psrch_inf->info_level); |
3681 | pSMB->ResumeKey = psrch_inf->resume_key; | |
3682 | pSMB->SearchFlags = | |
3683 | cpu_to_le16(CIFS_SEARCH_CLOSE_AT_END | CIFS_SEARCH_RETURN_RESUME); | |
3684 | ||
3685 | name_len = psrch_inf->resume_name_len; | |
3686 | params += name_len; | |
790fe579 | 3687 | if (name_len < PATH_MAX) { |
1da177e4 LT |
3688 | memcpy(pSMB->ResumeFileName, psrch_inf->presume_name, name_len); |
3689 | byte_count += name_len; | |
ef6724e3 SF |
3690 | /* 14 byte parm len above enough for 2 byte null terminator */ |
3691 | pSMB->ResumeFileName[name_len] = 0; | |
3692 | pSMB->ResumeFileName[name_len+1] = 0; | |
1da177e4 LT |
3693 | } else { |
3694 | rc = -EINVAL; | |
3695 | goto FNext2_err_exit; | |
3696 | } | |
3697 | byte_count = params + 1 /* pad */ ; | |
3698 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3699 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3700 | pSMB->hdr.smb_buf_length += byte_count; | |
3701 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
50c2f753 | 3702 | |
1da177e4 LT |
3703 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
3704 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 3705 | cifs_stats_inc(&tcon->num_fnext); |
1da177e4 LT |
3706 | if (rc) { |
3707 | if (rc == -EBADF) { | |
4b18f2a9 | 3708 | psrch_inf->endOfSearch = true; |
6353450a | 3709 | cifs_buf_release(pSMB); |
50c2f753 | 3710 | rc = 0; /* search probably was closed at end of search*/ |
1da177e4 LT |
3711 | } else |
3712 | cFYI(1, ("FindNext returned = %d", rc)); | |
3713 | } else { /* decode response */ | |
3714 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
50c2f753 | 3715 | |
790fe579 | 3716 | if (rc == 0) { |
b77d753c SF |
3717 | unsigned int lnoff; |
3718 | ||
1da177e4 LT |
3719 | /* BB fixme add lock for file (srch_info) struct here */ |
3720 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) | |
4b18f2a9 | 3721 | psrch_inf->unicode = true; |
1da177e4 | 3722 | else |
4b18f2a9 | 3723 | psrch_inf->unicode = false; |
1da177e4 LT |
3724 | response_data = (char *) &pSMBr->hdr.Protocol + |
3725 | le16_to_cpu(pSMBr->t2.ParameterOffset); | |
3726 | parms = (T2_FNEXT_RSP_PARMS *)response_data; | |
3727 | response_data = (char *)&pSMBr->hdr.Protocol + | |
3728 | le16_to_cpu(pSMBr->t2.DataOffset); | |
790fe579 | 3729 | if (psrch_inf->smallBuf) |
d47d7c1a SF |
3730 | cifs_small_buf_release( |
3731 | psrch_inf->ntwrk_buf_start); | |
3732 | else | |
3733 | cifs_buf_release(psrch_inf->ntwrk_buf_start); | |
1da177e4 LT |
3734 | psrch_inf->srch_entries_start = response_data; |
3735 | psrch_inf->ntwrk_buf_start = (char *)pSMB; | |
d47d7c1a | 3736 | psrch_inf->smallBuf = 0; |
790fe579 | 3737 | if (parms->EndofSearch) |
4b18f2a9 | 3738 | psrch_inf->endOfSearch = true; |
1da177e4 | 3739 | else |
4b18f2a9 | 3740 | psrch_inf->endOfSearch = false; |
50c2f753 SF |
3741 | psrch_inf->entries_in_buffer = |
3742 | le16_to_cpu(parms->SearchCount); | |
1da177e4 LT |
3743 | psrch_inf->index_of_last_entry += |
3744 | psrch_inf->entries_in_buffer; | |
b77d753c SF |
3745 | lnoff = le16_to_cpu(parms->LastNameOffset); |
3746 | if (tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE < | |
3747 | lnoff) { | |
3748 | cERROR(1, ("ignoring corrupt resume name")); | |
3749 | psrch_inf->last_entry = NULL; | |
3750 | return rc; | |
3751 | } else | |
3752 | psrch_inf->last_entry = | |
3753 | psrch_inf->srch_entries_start + lnoff; | |
3754 | ||
50c2f753 SF |
3755 | /* cFYI(1,("fnxt2 entries in buf %d index_of_last %d", |
3756 | psrch_inf->entries_in_buffer, psrch_inf->index_of_last_entry)); */ | |
1da177e4 LT |
3757 | |
3758 | /* BB fixme add unlock here */ | |
3759 | } | |
3760 | ||
3761 | } | |
3762 | ||
3763 | /* BB On error, should we leave previous search buf (and count and | |
3764 | last entry fields) intact or free the previous one? */ | |
3765 | ||
3766 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
3767 | since file handle passed in no longer valid */ | |
3768 | FNext2_err_exit: | |
3769 | if (rc != 0) | |
3770 | cifs_buf_release(pSMB); | |
1da177e4 LT |
3771 | return rc; |
3772 | } | |
3773 | ||
3774 | int | |
50c2f753 SF |
3775 | CIFSFindClose(const int xid, struct cifsTconInfo *tcon, |
3776 | const __u16 searchHandle) | |
1da177e4 LT |
3777 | { |
3778 | int rc = 0; | |
3779 | FINDCLOSE_REQ *pSMB = NULL; | |
1da177e4 LT |
3780 | |
3781 | cFYI(1, ("In CIFSSMBFindClose")); | |
3782 | rc = small_smb_init(SMB_COM_FIND_CLOSE2, 1, tcon, (void **)&pSMB); | |
3783 | ||
3784 | /* no sense returning error if session restarted | |
3785 | as file handle has been closed */ | |
790fe579 | 3786 | if (rc == -EAGAIN) |
1da177e4 LT |
3787 | return 0; |
3788 | if (rc) | |
3789 | return rc; | |
3790 | ||
1da177e4 LT |
3791 | pSMB->FileID = searchHandle; |
3792 | pSMB->ByteCount = 0; | |
133672ef | 3793 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); |
ad7a2926 | 3794 | if (rc) |
1da177e4 | 3795 | cERROR(1, ("Send error in FindClose = %d", rc)); |
ad7a2926 | 3796 | |
a4544347 | 3797 | cifs_stats_inc(&tcon->num_fclose); |
1da177e4 LT |
3798 | |
3799 | /* Since session is dead, search handle closed on server already */ | |
3800 | if (rc == -EAGAIN) | |
3801 | rc = 0; | |
3802 | ||
3803 | return rc; | |
3804 | } | |
3805 | ||
1da177e4 LT |
3806 | int |
3807 | CIFSGetSrvInodeNumber(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 | 3808 | const unsigned char *searchName, |
ad7a2926 | 3809 | __u64 *inode_number, |
50c2f753 | 3810 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
3811 | { |
3812 | int rc = 0; | |
3813 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
3814 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
3815 | int name_len, bytes_returned; | |
3816 | __u16 params, byte_count; | |
3817 | ||
50c2f753 | 3818 | cFYI(1, ("In GetSrvInodeNum for %s", searchName)); |
790fe579 | 3819 | if (tcon == NULL) |
50c2f753 | 3820 | return -ENODEV; |
1da177e4 LT |
3821 | |
3822 | GetInodeNumberRetry: | |
3823 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
50c2f753 | 3824 | (void **) &pSMBr); |
1da177e4 LT |
3825 | if (rc) |
3826 | return rc; | |
3827 | ||
1da177e4 LT |
3828 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
3829 | name_len = | |
b1a45695 | 3830 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
50c2f753 | 3831 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
3832 | name_len++; /* trailing null */ |
3833 | name_len *= 2; | |
50c2f753 | 3834 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
3835 | name_len = strnlen(searchName, PATH_MAX); |
3836 | name_len++; /* trailing null */ | |
3837 | strncpy(pSMB->FileName, searchName, name_len); | |
3838 | } | |
3839 | ||
3840 | params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ; | |
3841 | pSMB->TotalDataCount = 0; | |
3842 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3843 | /* BB find exact max data count below from sess structure BB */ | |
3844 | pSMB->MaxDataCount = cpu_to_le16(4000); | |
3845 | pSMB->MaxSetupCount = 0; | |
3846 | pSMB->Reserved = 0; | |
3847 | pSMB->Flags = 0; | |
3848 | pSMB->Timeout = 0; | |
3849 | pSMB->Reserved2 = 0; | |
3850 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 3851 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
1da177e4 LT |
3852 | pSMB->DataCount = 0; |
3853 | pSMB->DataOffset = 0; | |
3854 | pSMB->SetupCount = 1; | |
3855 | pSMB->Reserved3 = 0; | |
3856 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
3857 | byte_count = params + 1 /* pad */ ; | |
3858 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3859 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3860 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_INTERNAL_INFO); | |
3861 | pSMB->Reserved4 = 0; | |
3862 | pSMB->hdr.smb_buf_length += byte_count; | |
3863 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3864 | ||
3865 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3866 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3867 | if (rc) { | |
3868 | cFYI(1, ("error %d in QueryInternalInfo", rc)); | |
3869 | } else { | |
3870 | /* decode response */ | |
3871 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3872 | if (rc || (pSMBr->ByteCount < 2)) | |
3873 | /* BB also check enough total bytes returned */ | |
3874 | /* If rc should we check for EOPNOSUPP and | |
3875 | disable the srvino flag? or in caller? */ | |
3876 | rc = -EIO; /* bad smb */ | |
50c2f753 | 3877 | else { |
1da177e4 LT |
3878 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
3879 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); | |
50c2f753 | 3880 | struct file_internal_info *pfinfo; |
1da177e4 | 3881 | /* BB Do we need a cast or hash here ? */ |
790fe579 | 3882 | if (count < 8) { |
1da177e4 LT |
3883 | cFYI(1, ("Illegal size ret in QryIntrnlInf")); |
3884 | rc = -EIO; | |
3885 | goto GetInodeNumOut; | |
3886 | } | |
3887 | pfinfo = (struct file_internal_info *) | |
3888 | (data_offset + (char *) &pSMBr->hdr.Protocol); | |
85a6dac5 | 3889 | *inode_number = le64_to_cpu(pfinfo->UniqueId); |
1da177e4 LT |
3890 | } |
3891 | } | |
3892 | GetInodeNumOut: | |
3893 | cifs_buf_release(pSMB); | |
3894 | if (rc == -EAGAIN) | |
3895 | goto GetInodeNumberRetry; | |
3896 | return rc; | |
3897 | } | |
1da177e4 | 3898 | |
fec4585f IM |
3899 | /* parses DFS refferal V3 structure |
3900 | * caller is responsible for freeing target_nodes | |
3901 | * returns: | |
3902 | * on success - 0 | |
3903 | * on failure - errno | |
3904 | */ | |
3905 | static int | |
a1fe78f1 | 3906 | parse_DFS_referrals(TRANSACTION2_GET_DFS_REFER_RSP *pSMBr, |
fec4585f IM |
3907 | unsigned int *num_of_nodes, |
3908 | struct dfs_info3_param **target_nodes, | |
2c55608f IM |
3909 | const struct nls_table *nls_codepage, int remap, |
3910 | const char *searchName) | |
fec4585f IM |
3911 | { |
3912 | int i, rc = 0; | |
3913 | char *data_end; | |
3914 | bool is_unicode; | |
3915 | struct dfs_referral_level_3 *ref; | |
3916 | ||
5ca33c6a HH |
3917 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) |
3918 | is_unicode = true; | |
3919 | else | |
3920 | is_unicode = false; | |
fec4585f IM |
3921 | *num_of_nodes = le16_to_cpu(pSMBr->NumberOfReferrals); |
3922 | ||
3923 | if (*num_of_nodes < 1) { | |
3924 | cERROR(1, ("num_referrals: must be at least > 0," | |
3925 | "but we get num_referrals = %d\n", *num_of_nodes)); | |
3926 | rc = -EINVAL; | |
a1fe78f1 | 3927 | goto parse_DFS_referrals_exit; |
fec4585f IM |
3928 | } |
3929 | ||
3930 | ref = (struct dfs_referral_level_3 *) &(pSMBr->referrals); | |
1d92cfd5 | 3931 | if (ref->VersionNumber != cpu_to_le16(3)) { |
fec4585f | 3932 | cERROR(1, ("Referrals of V%d version are not supported," |
1d92cfd5 | 3933 | "should be V3", le16_to_cpu(ref->VersionNumber))); |
fec4585f | 3934 | rc = -EINVAL; |
a1fe78f1 | 3935 | goto parse_DFS_referrals_exit; |
fec4585f IM |
3936 | } |
3937 | ||
3938 | /* get the upper boundary of the resp buffer */ | |
3939 | data_end = (char *)(&(pSMBr->PathConsumed)) + | |
3940 | le16_to_cpu(pSMBr->t2.DataCount); | |
3941 | ||
3942 | cFYI(1, ("num_referrals: %d dfs flags: 0x%x ... \n", | |
3943 | *num_of_nodes, | |
0e0d2cf3 | 3944 | le32_to_cpu(pSMBr->DFSFlags))); |
fec4585f IM |
3945 | |
3946 | *target_nodes = kzalloc(sizeof(struct dfs_info3_param) * | |
3947 | *num_of_nodes, GFP_KERNEL); | |
3948 | if (*target_nodes == NULL) { | |
3949 | cERROR(1, ("Failed to allocate buffer for target_nodes\n")); | |
3950 | rc = -ENOMEM; | |
a1fe78f1 | 3951 | goto parse_DFS_referrals_exit; |
fec4585f IM |
3952 | } |
3953 | ||
3954 | /* collect neccessary data from referrals */ | |
3955 | for (i = 0; i < *num_of_nodes; i++) { | |
3956 | char *temp; | |
3957 | int max_len; | |
3958 | struct dfs_info3_param *node = (*target_nodes)+i; | |
3959 | ||
0e0d2cf3 | 3960 | node->flags = le32_to_cpu(pSMBr->DFSFlags); |
2c55608f | 3961 | if (is_unicode) { |
331c3135 JL |
3962 | __le16 *tmp = kmalloc(strlen(searchName)*2 + 2, |
3963 | GFP_KERNEL); | |
2c55608f IM |
3964 | cifsConvertToUCS((__le16 *) tmp, searchName, |
3965 | PATH_MAX, nls_codepage, remap); | |
69f801fc JL |
3966 | node->path_consumed = cifs_ucs2_bytes(tmp, |
3967 | le16_to_cpu(pSMBr->PathConsumed), | |
2c55608f IM |
3968 | nls_codepage); |
3969 | kfree(tmp); | |
3970 | } else | |
3971 | node->path_consumed = le16_to_cpu(pSMBr->PathConsumed); | |
3972 | ||
fec4585f IM |
3973 | node->server_type = le16_to_cpu(ref->ServerType); |
3974 | node->ref_flag = le16_to_cpu(ref->ReferralEntryFlags); | |
3975 | ||
3976 | /* copy DfsPath */ | |
3977 | temp = (char *)ref + le16_to_cpu(ref->DfsPathOffset); | |
3978 | max_len = data_end - temp; | |
d185cda7 SF |
3979 | node->path_name = cifs_strndup_from_ucs(temp, max_len, |
3980 | is_unicode, nls_codepage); | |
d8e2f53a JL |
3981 | if (!node->path_name) { |
3982 | rc = -ENOMEM; | |
a1fe78f1 | 3983 | goto parse_DFS_referrals_exit; |
066ce689 | 3984 | } |
fec4585f IM |
3985 | |
3986 | /* copy link target UNC */ | |
3987 | temp = (char *)ref + le16_to_cpu(ref->NetworkAddressOffset); | |
3988 | max_len = data_end - temp; | |
d185cda7 SF |
3989 | node->node_name = cifs_strndup_from_ucs(temp, max_len, |
3990 | is_unicode, nls_codepage); | |
d8e2f53a JL |
3991 | if (!node->node_name) |
3992 | rc = -ENOMEM; | |
fec4585f IM |
3993 | } |
3994 | ||
a1fe78f1 | 3995 | parse_DFS_referrals_exit: |
fec4585f IM |
3996 | if (rc) { |
3997 | free_dfs_info_array(*target_nodes, *num_of_nodes); | |
3998 | *target_nodes = NULL; | |
3999 | *num_of_nodes = 0; | |
4000 | } | |
4001 | return rc; | |
4002 | } | |
4003 | ||
1da177e4 LT |
4004 | int |
4005 | CIFSGetDFSRefer(const int xid, struct cifsSesInfo *ses, | |
4006 | const unsigned char *searchName, | |
c2cf07d5 SF |
4007 | struct dfs_info3_param **target_nodes, |
4008 | unsigned int *num_of_nodes, | |
737b758c | 4009 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
4010 | { |
4011 | /* TRANS2_GET_DFS_REFERRAL */ | |
4012 | TRANSACTION2_GET_DFS_REFER_REQ *pSMB = NULL; | |
4013 | TRANSACTION2_GET_DFS_REFER_RSP *pSMBr = NULL; | |
1da177e4 LT |
4014 | int rc = 0; |
4015 | int bytes_returned; | |
4016 | int name_len; | |
1da177e4 | 4017 | __u16 params, byte_count; |
c2cf07d5 SF |
4018 | *num_of_nodes = 0; |
4019 | *target_nodes = NULL; | |
1da177e4 LT |
4020 | |
4021 | cFYI(1, ("In GetDFSRefer the path %s", searchName)); | |
4022 | if (ses == NULL) | |
4023 | return -ENODEV; | |
4024 | getDFSRetry: | |
4025 | rc = smb_init(SMB_COM_TRANSACTION2, 15, NULL, (void **) &pSMB, | |
4026 | (void **) &pSMBr); | |
4027 | if (rc) | |
4028 | return rc; | |
50c2f753 SF |
4029 | |
4030 | /* server pointer checked in called function, | |
1982c344 SF |
4031 | but should never be null here anyway */ |
4032 | pSMB->hdr.Mid = GetNextMid(ses->server); | |
1da177e4 LT |
4033 | pSMB->hdr.Tid = ses->ipc_tid; |
4034 | pSMB->hdr.Uid = ses->Suid; | |
26f57364 | 4035 | if (ses->capabilities & CAP_STATUS32) |
1da177e4 | 4036 | pSMB->hdr.Flags2 |= SMBFLG2_ERR_STATUS; |
26f57364 | 4037 | if (ses->capabilities & CAP_DFS) |
1da177e4 | 4038 | pSMB->hdr.Flags2 |= SMBFLG2_DFS; |
1da177e4 LT |
4039 | |
4040 | if (ses->capabilities & CAP_UNICODE) { | |
4041 | pSMB->hdr.Flags2 |= SMBFLG2_UNICODE; | |
4042 | name_len = | |
b1a45695 | 4043 | cifsConvertToUCS((__le16 *) pSMB->RequestFileName, |
737b758c | 4044 | searchName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
4045 | name_len++; /* trailing null */ |
4046 | name_len *= 2; | |
50c2f753 | 4047 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
4048 | name_len = strnlen(searchName, PATH_MAX); |
4049 | name_len++; /* trailing null */ | |
4050 | strncpy(pSMB->RequestFileName, searchName, name_len); | |
4051 | } | |
4052 | ||
790fe579 SF |
4053 | if (ses->server) { |
4054 | if (ses->server->secMode & | |
1a4e15a0 SF |
4055 | (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) |
4056 | pSMB->hdr.Flags2 |= SMBFLG2_SECURITY_SIGNATURE; | |
4057 | } | |
4058 | ||
50c2f753 | 4059 | pSMB->hdr.Uid = ses->Suid; |
1a4e15a0 | 4060 | |
1da177e4 LT |
4061 | params = 2 /* level */ + name_len /*includes null */ ; |
4062 | pSMB->TotalDataCount = 0; | |
4063 | pSMB->DataCount = 0; | |
4064 | pSMB->DataOffset = 0; | |
4065 | pSMB->MaxParameterCount = 0; | |
582d21e5 SF |
4066 | /* BB find exact max SMB PDU from sess structure BB */ |
4067 | pSMB->MaxDataCount = cpu_to_le16(4000); | |
1da177e4 LT |
4068 | pSMB->MaxSetupCount = 0; |
4069 | pSMB->Reserved = 0; | |
4070 | pSMB->Flags = 0; | |
4071 | pSMB->Timeout = 0; | |
4072 | pSMB->Reserved2 = 0; | |
4073 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 4074 | struct smb_com_transaction2_get_dfs_refer_req, MaxReferralLevel) - 4); |
1da177e4 LT |
4075 | pSMB->SetupCount = 1; |
4076 | pSMB->Reserved3 = 0; | |
4077 | pSMB->SubCommand = cpu_to_le16(TRANS2_GET_DFS_REFERRAL); | |
4078 | byte_count = params + 3 /* pad */ ; | |
4079 | pSMB->ParameterCount = cpu_to_le16(params); | |
4080 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4081 | pSMB->MaxReferralLevel = cpu_to_le16(3); | |
4082 | pSMB->hdr.smb_buf_length += byte_count; | |
4083 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4084 | ||
4085 | rc = SendReceive(xid, ses, (struct smb_hdr *) pSMB, | |
4086 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4087 | if (rc) { | |
4088 | cFYI(1, ("Send error in GetDFSRefer = %d", rc)); | |
c2cf07d5 SF |
4089 | goto GetDFSRefExit; |
4090 | } | |
4091 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
1da177e4 | 4092 | |
c2cf07d5 | 4093 | /* BB Also check if enough total bytes returned? */ |
fec4585f | 4094 | if (rc || (pSMBr->ByteCount < 17)) { |
c2cf07d5 | 4095 | rc = -EIO; /* bad smb */ |
fec4585f IM |
4096 | goto GetDFSRefExit; |
4097 | } | |
c2cf07d5 | 4098 | |
fec4585f IM |
4099 | cFYI(1, ("Decoding GetDFSRefer response BCC: %d Offset %d", |
4100 | pSMBr->ByteCount, | |
4101 | le16_to_cpu(pSMBr->t2.DataOffset))); | |
1da177e4 | 4102 | |
fec4585f | 4103 | /* parse returned result into more usable form */ |
a1fe78f1 | 4104 | rc = parse_DFS_referrals(pSMBr, num_of_nodes, |
2c55608f IM |
4105 | target_nodes, nls_codepage, remap, |
4106 | searchName); | |
c2cf07d5 | 4107 | |
1da177e4 | 4108 | GetDFSRefExit: |
0d817bc0 | 4109 | cifs_buf_release(pSMB); |
1da177e4 LT |
4110 | |
4111 | if (rc == -EAGAIN) | |
4112 | goto getDFSRetry; | |
4113 | ||
4114 | return rc; | |
4115 | } | |
4116 | ||
20962438 SF |
4117 | /* Query File System Info such as free space to old servers such as Win 9x */ |
4118 | int | |
4119 | SMBOldQFSInfo(const int xid, struct cifsTconInfo *tcon, struct kstatfs *FSData) | |
4120 | { | |
4121 | /* level 0x01 SMB_QUERY_FILE_SYSTEM_INFO */ | |
4122 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4123 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4124 | FILE_SYSTEM_ALLOC_INFO *response_data; | |
4125 | int rc = 0; | |
4126 | int bytes_returned = 0; | |
4127 | __u16 params, byte_count; | |
4128 | ||
4129 | cFYI(1, ("OldQFSInfo")); | |
4130 | oldQFSInfoRetry: | |
4131 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4132 | (void **) &pSMBr); | |
4133 | if (rc) | |
4134 | return rc; | |
20962438 SF |
4135 | |
4136 | params = 2; /* level */ | |
4137 | pSMB->TotalDataCount = 0; | |
4138 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4139 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
4140 | pSMB->MaxSetupCount = 0; | |
4141 | pSMB->Reserved = 0; | |
4142 | pSMB->Flags = 0; | |
4143 | pSMB->Timeout = 0; | |
4144 | pSMB->Reserved2 = 0; | |
4145 | byte_count = params + 1 /* pad */ ; | |
4146 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
4147 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
4148 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
4149 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
4150 | pSMB->DataCount = 0; | |
4151 | pSMB->DataOffset = 0; | |
4152 | pSMB->SetupCount = 1; | |
4153 | pSMB->Reserved3 = 0; | |
4154 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4155 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_ALLOCATION); | |
4156 | pSMB->hdr.smb_buf_length += byte_count; | |
4157 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4158 | ||
4159 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4160 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4161 | if (rc) { | |
4162 | cFYI(1, ("Send error in QFSInfo = %d", rc)); | |
4163 | } else { /* decode response */ | |
4164 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4165 | ||
4166 | if (rc || (pSMBr->ByteCount < 18)) | |
4167 | rc = -EIO; /* bad smb */ | |
4168 | else { | |
4169 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
50c2f753 | 4170 | cFYI(1, ("qfsinf resp BCC: %d Offset %d", |
20962438 SF |
4171 | pSMBr->ByteCount, data_offset)); |
4172 | ||
50c2f753 | 4173 | response_data = (FILE_SYSTEM_ALLOC_INFO *) |
20962438 SF |
4174 | (((char *) &pSMBr->hdr.Protocol) + data_offset); |
4175 | FSData->f_bsize = | |
4176 | le16_to_cpu(response_data->BytesPerSector) * | |
4177 | le32_to_cpu(response_data-> | |
4178 | SectorsPerAllocationUnit); | |
4179 | FSData->f_blocks = | |
50c2f753 | 4180 | le32_to_cpu(response_data->TotalAllocationUnits); |
20962438 SF |
4181 | FSData->f_bfree = FSData->f_bavail = |
4182 | le32_to_cpu(response_data->FreeAllocationUnits); | |
4183 | cFYI(1, | |
4184 | ("Blocks: %lld Free: %lld Block size %ld", | |
4185 | (unsigned long long)FSData->f_blocks, | |
4186 | (unsigned long long)FSData->f_bfree, | |
4187 | FSData->f_bsize)); | |
4188 | } | |
4189 | } | |
4190 | cifs_buf_release(pSMB); | |
4191 | ||
4192 | if (rc == -EAGAIN) | |
4193 | goto oldQFSInfoRetry; | |
4194 | ||
4195 | return rc; | |
4196 | } | |
4197 | ||
1da177e4 | 4198 | int |
737b758c | 4199 | CIFSSMBQFSInfo(const int xid, struct cifsTconInfo *tcon, struct kstatfs *FSData) |
1da177e4 LT |
4200 | { |
4201 | /* level 0x103 SMB_QUERY_FILE_SYSTEM_INFO */ | |
4202 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4203 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4204 | FILE_SYSTEM_INFO *response_data; | |
4205 | int rc = 0; | |
4206 | int bytes_returned = 0; | |
4207 | __u16 params, byte_count; | |
4208 | ||
4209 | cFYI(1, ("In QFSInfo")); | |
4210 | QFSInfoRetry: | |
4211 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4212 | (void **) &pSMBr); | |
4213 | if (rc) | |
4214 | return rc; | |
4215 | ||
4216 | params = 2; /* level */ | |
4217 | pSMB->TotalDataCount = 0; | |
4218 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
20962438 | 4219 | pSMB->MaxDataCount = cpu_to_le16(1000); |
1da177e4 LT |
4220 | pSMB->MaxSetupCount = 0; |
4221 | pSMB->Reserved = 0; | |
4222 | pSMB->Flags = 0; | |
4223 | pSMB->Timeout = 0; | |
4224 | pSMB->Reserved2 = 0; | |
4225 | byte_count = params + 1 /* pad */ ; | |
4226 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
4227 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
4228 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 4229 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); |
1da177e4 LT |
4230 | pSMB->DataCount = 0; |
4231 | pSMB->DataOffset = 0; | |
4232 | pSMB->SetupCount = 1; | |
4233 | pSMB->Reserved3 = 0; | |
4234 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4235 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_SIZE_INFO); | |
4236 | pSMB->hdr.smb_buf_length += byte_count; | |
4237 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4238 | ||
4239 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4240 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4241 | if (rc) { | |
20962438 | 4242 | cFYI(1, ("Send error in QFSInfo = %d", rc)); |
1da177e4 | 4243 | } else { /* decode response */ |
50c2f753 | 4244 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
1da177e4 | 4245 | |
20962438 | 4246 | if (rc || (pSMBr->ByteCount < 24)) |
1da177e4 LT |
4247 | rc = -EIO; /* bad smb */ |
4248 | else { | |
4249 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
1da177e4 LT |
4250 | |
4251 | response_data = | |
4252 | (FILE_SYSTEM_INFO | |
4253 | *) (((char *) &pSMBr->hdr.Protocol) + | |
4254 | data_offset); | |
4255 | FSData->f_bsize = | |
4256 | le32_to_cpu(response_data->BytesPerSector) * | |
4257 | le32_to_cpu(response_data-> | |
4258 | SectorsPerAllocationUnit); | |
4259 | FSData->f_blocks = | |
4260 | le64_to_cpu(response_data->TotalAllocationUnits); | |
4261 | FSData->f_bfree = FSData->f_bavail = | |
4262 | le64_to_cpu(response_data->FreeAllocationUnits); | |
4263 | cFYI(1, | |
4264 | ("Blocks: %lld Free: %lld Block size %ld", | |
4265 | (unsigned long long)FSData->f_blocks, | |
4266 | (unsigned long long)FSData->f_bfree, | |
4267 | FSData->f_bsize)); | |
4268 | } | |
4269 | } | |
4270 | cifs_buf_release(pSMB); | |
4271 | ||
4272 | if (rc == -EAGAIN) | |
4273 | goto QFSInfoRetry; | |
4274 | ||
4275 | return rc; | |
4276 | } | |
4277 | ||
4278 | int | |
737b758c | 4279 | CIFSSMBQFSAttributeInfo(const int xid, struct cifsTconInfo *tcon) |
1da177e4 LT |
4280 | { |
4281 | /* level 0x105 SMB_QUERY_FILE_SYSTEM_INFO */ | |
4282 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4283 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4284 | FILE_SYSTEM_ATTRIBUTE_INFO *response_data; | |
4285 | int rc = 0; | |
4286 | int bytes_returned = 0; | |
4287 | __u16 params, byte_count; | |
4288 | ||
4289 | cFYI(1, ("In QFSAttributeInfo")); | |
4290 | QFSAttributeRetry: | |
4291 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4292 | (void **) &pSMBr); | |
4293 | if (rc) | |
4294 | return rc; | |
4295 | ||
4296 | params = 2; /* level */ | |
4297 | pSMB->TotalDataCount = 0; | |
4298 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
582d21e5 SF |
4299 | /* BB find exact max SMB PDU from sess structure BB */ |
4300 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1da177e4 LT |
4301 | pSMB->MaxSetupCount = 0; |
4302 | pSMB->Reserved = 0; | |
4303 | pSMB->Flags = 0; | |
4304 | pSMB->Timeout = 0; | |
4305 | pSMB->Reserved2 = 0; | |
4306 | byte_count = params + 1 /* pad */ ; | |
4307 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
4308 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
4309 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 4310 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); |
1da177e4 LT |
4311 | pSMB->DataCount = 0; |
4312 | pSMB->DataOffset = 0; | |
4313 | pSMB->SetupCount = 1; | |
4314 | pSMB->Reserved3 = 0; | |
4315 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4316 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_ATTRIBUTE_INFO); | |
4317 | pSMB->hdr.smb_buf_length += byte_count; | |
4318 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4319 | ||
4320 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4321 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4322 | if (rc) { | |
4323 | cERROR(1, ("Send error in QFSAttributeInfo = %d", rc)); | |
4324 | } else { /* decode response */ | |
4325 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4326 | ||
50c2f753 SF |
4327 | if (rc || (pSMBr->ByteCount < 13)) { |
4328 | /* BB also check if enough bytes returned */ | |
1da177e4 LT |
4329 | rc = -EIO; /* bad smb */ |
4330 | } else { | |
4331 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
4332 | response_data = | |
4333 | (FILE_SYSTEM_ATTRIBUTE_INFO | |
4334 | *) (((char *) &pSMBr->hdr.Protocol) + | |
4335 | data_offset); | |
4336 | memcpy(&tcon->fsAttrInfo, response_data, | |
26f57364 | 4337 | sizeof(FILE_SYSTEM_ATTRIBUTE_INFO)); |
1da177e4 LT |
4338 | } |
4339 | } | |
4340 | cifs_buf_release(pSMB); | |
4341 | ||
4342 | if (rc == -EAGAIN) | |
4343 | goto QFSAttributeRetry; | |
4344 | ||
4345 | return rc; | |
4346 | } | |
4347 | ||
4348 | int | |
737b758c | 4349 | CIFSSMBQFSDeviceInfo(const int xid, struct cifsTconInfo *tcon) |
1da177e4 LT |
4350 | { |
4351 | /* level 0x104 SMB_QUERY_FILE_SYSTEM_INFO */ | |
4352 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4353 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4354 | FILE_SYSTEM_DEVICE_INFO *response_data; | |
4355 | int rc = 0; | |
4356 | int bytes_returned = 0; | |
4357 | __u16 params, byte_count; | |
4358 | ||
4359 | cFYI(1, ("In QFSDeviceInfo")); | |
4360 | QFSDeviceRetry: | |
4361 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4362 | (void **) &pSMBr); | |
4363 | if (rc) | |
4364 | return rc; | |
4365 | ||
4366 | params = 2; /* level */ | |
4367 | pSMB->TotalDataCount = 0; | |
4368 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
582d21e5 SF |
4369 | /* BB find exact max SMB PDU from sess structure BB */ |
4370 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1da177e4 LT |
4371 | pSMB->MaxSetupCount = 0; |
4372 | pSMB->Reserved = 0; | |
4373 | pSMB->Flags = 0; | |
4374 | pSMB->Timeout = 0; | |
4375 | pSMB->Reserved2 = 0; | |
4376 | byte_count = params + 1 /* pad */ ; | |
4377 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
4378 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
4379 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 4380 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); |
1da177e4 LT |
4381 | |
4382 | pSMB->DataCount = 0; | |
4383 | pSMB->DataOffset = 0; | |
4384 | pSMB->SetupCount = 1; | |
4385 | pSMB->Reserved3 = 0; | |
4386 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4387 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_DEVICE_INFO); | |
4388 | pSMB->hdr.smb_buf_length += byte_count; | |
4389 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4390 | ||
4391 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4392 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4393 | if (rc) { | |
4394 | cFYI(1, ("Send error in QFSDeviceInfo = %d", rc)); | |
4395 | } else { /* decode response */ | |
4396 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4397 | ||
630f3f0c | 4398 | if (rc || (pSMBr->ByteCount < sizeof(FILE_SYSTEM_DEVICE_INFO))) |
1da177e4 LT |
4399 | rc = -EIO; /* bad smb */ |
4400 | else { | |
4401 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
4402 | response_data = | |
737b758c SF |
4403 | (FILE_SYSTEM_DEVICE_INFO *) |
4404 | (((char *) &pSMBr->hdr.Protocol) + | |
1da177e4 LT |
4405 | data_offset); |
4406 | memcpy(&tcon->fsDevInfo, response_data, | |
26f57364 | 4407 | sizeof(FILE_SYSTEM_DEVICE_INFO)); |
1da177e4 LT |
4408 | } |
4409 | } | |
4410 | cifs_buf_release(pSMB); | |
4411 | ||
4412 | if (rc == -EAGAIN) | |
4413 | goto QFSDeviceRetry; | |
4414 | ||
4415 | return rc; | |
4416 | } | |
4417 | ||
4418 | int | |
737b758c | 4419 | CIFSSMBQFSUnixInfo(const int xid, struct cifsTconInfo *tcon) |
1da177e4 LT |
4420 | { |
4421 | /* level 0x200 SMB_QUERY_CIFS_UNIX_INFO */ | |
4422 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4423 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4424 | FILE_SYSTEM_UNIX_INFO *response_data; | |
4425 | int rc = 0; | |
4426 | int bytes_returned = 0; | |
4427 | __u16 params, byte_count; | |
4428 | ||
4429 | cFYI(1, ("In QFSUnixInfo")); | |
4430 | QFSUnixRetry: | |
4431 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4432 | (void **) &pSMBr); | |
4433 | if (rc) | |
4434 | return rc; | |
4435 | ||
4436 | params = 2; /* level */ | |
4437 | pSMB->TotalDataCount = 0; | |
4438 | pSMB->DataCount = 0; | |
4439 | pSMB->DataOffset = 0; | |
4440 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
582d21e5 SF |
4441 | /* BB find exact max SMB PDU from sess structure BB */ |
4442 | pSMB->MaxDataCount = cpu_to_le16(100); | |
1da177e4 LT |
4443 | pSMB->MaxSetupCount = 0; |
4444 | pSMB->Reserved = 0; | |
4445 | pSMB->Flags = 0; | |
4446 | pSMB->Timeout = 0; | |
4447 | pSMB->Reserved2 = 0; | |
4448 | byte_count = params + 1 /* pad */ ; | |
4449 | pSMB->ParameterCount = cpu_to_le16(params); | |
4450 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
50c2f753 SF |
4451 | pSMB->ParameterOffset = cpu_to_le16(offsetof(struct |
4452 | smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
1da177e4 LT |
4453 | pSMB->SetupCount = 1; |
4454 | pSMB->Reserved3 = 0; | |
4455 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4456 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_CIFS_UNIX_INFO); | |
4457 | pSMB->hdr.smb_buf_length += byte_count; | |
4458 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4459 | ||
4460 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4461 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4462 | if (rc) { | |
4463 | cERROR(1, ("Send error in QFSUnixInfo = %d", rc)); | |
4464 | } else { /* decode response */ | |
4465 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4466 | ||
4467 | if (rc || (pSMBr->ByteCount < 13)) { | |
4468 | rc = -EIO; /* bad smb */ | |
4469 | } else { | |
4470 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
4471 | response_data = | |
4472 | (FILE_SYSTEM_UNIX_INFO | |
4473 | *) (((char *) &pSMBr->hdr.Protocol) + | |
4474 | data_offset); | |
4475 | memcpy(&tcon->fsUnixInfo, response_data, | |
26f57364 | 4476 | sizeof(FILE_SYSTEM_UNIX_INFO)); |
1da177e4 LT |
4477 | } |
4478 | } | |
4479 | cifs_buf_release(pSMB); | |
4480 | ||
4481 | if (rc == -EAGAIN) | |
4482 | goto QFSUnixRetry; | |
4483 | ||
4484 | ||
4485 | return rc; | |
4486 | } | |
4487 | ||
ac67055e | 4488 | int |
45abc6ee | 4489 | CIFSSMBSetFSUnixInfo(const int xid, struct cifsTconInfo *tcon, __u64 cap) |
ac67055e JA |
4490 | { |
4491 | /* level 0x200 SMB_SET_CIFS_UNIX_INFO */ | |
4492 | TRANSACTION2_SETFSI_REQ *pSMB = NULL; | |
4493 | TRANSACTION2_SETFSI_RSP *pSMBr = NULL; | |
4494 | int rc = 0; | |
4495 | int bytes_returned = 0; | |
4496 | __u16 params, param_offset, offset, byte_count; | |
4497 | ||
4498 | cFYI(1, ("In SETFSUnixInfo")); | |
4499 | SETFSUnixRetry: | |
f26282c9 | 4500 | /* BB switch to small buf init to save memory */ |
ac67055e JA |
4501 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
4502 | (void **) &pSMBr); | |
4503 | if (rc) | |
4504 | return rc; | |
4505 | ||
4506 | params = 4; /* 2 bytes zero followed by info level. */ | |
4507 | pSMB->MaxSetupCount = 0; | |
4508 | pSMB->Reserved = 0; | |
4509 | pSMB->Flags = 0; | |
4510 | pSMB->Timeout = 0; | |
4511 | pSMB->Reserved2 = 0; | |
50c2f753 SF |
4512 | param_offset = offsetof(struct smb_com_transaction2_setfsi_req, FileNum) |
4513 | - 4; | |
ac67055e JA |
4514 | offset = param_offset + params; |
4515 | ||
4516 | pSMB->MaxParameterCount = cpu_to_le16(4); | |
582d21e5 SF |
4517 | /* BB find exact max SMB PDU from sess structure BB */ |
4518 | pSMB->MaxDataCount = cpu_to_le16(100); | |
ac67055e JA |
4519 | pSMB->SetupCount = 1; |
4520 | pSMB->Reserved3 = 0; | |
4521 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FS_INFORMATION); | |
4522 | byte_count = 1 /* pad */ + params + 12; | |
4523 | ||
4524 | pSMB->DataCount = cpu_to_le16(12); | |
4525 | pSMB->ParameterCount = cpu_to_le16(params); | |
4526 | pSMB->TotalDataCount = pSMB->DataCount; | |
4527 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4528 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4529 | pSMB->DataOffset = cpu_to_le16(offset); | |
4530 | ||
4531 | /* Params. */ | |
4532 | pSMB->FileNum = 0; | |
4533 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_CIFS_UNIX_INFO); | |
4534 | ||
4535 | /* Data. */ | |
4536 | pSMB->ClientUnixMajor = cpu_to_le16(CIFS_UNIX_MAJOR_VERSION); | |
4537 | pSMB->ClientUnixMinor = cpu_to_le16(CIFS_UNIX_MINOR_VERSION); | |
4538 | pSMB->ClientUnixCap = cpu_to_le64(cap); | |
4539 | ||
4540 | pSMB->hdr.smb_buf_length += byte_count; | |
4541 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4542 | ||
4543 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4544 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4545 | if (rc) { | |
4546 | cERROR(1, ("Send error in SETFSUnixInfo = %d", rc)); | |
4547 | } else { /* decode response */ | |
4548 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
ad7a2926 | 4549 | if (rc) |
ac67055e | 4550 | rc = -EIO; /* bad smb */ |
ac67055e JA |
4551 | } |
4552 | cifs_buf_release(pSMB); | |
4553 | ||
4554 | if (rc == -EAGAIN) | |
4555 | goto SETFSUnixRetry; | |
4556 | ||
4557 | return rc; | |
4558 | } | |
4559 | ||
4560 | ||
1da177e4 LT |
4561 | |
4562 | int | |
4563 | CIFSSMBQFSPosixInfo(const int xid, struct cifsTconInfo *tcon, | |
737b758c | 4564 | struct kstatfs *FSData) |
1da177e4 LT |
4565 | { |
4566 | /* level 0x201 SMB_QUERY_CIFS_POSIX_INFO */ | |
4567 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4568 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4569 | FILE_SYSTEM_POSIX_INFO *response_data; | |
4570 | int rc = 0; | |
4571 | int bytes_returned = 0; | |
4572 | __u16 params, byte_count; | |
4573 | ||
4574 | cFYI(1, ("In QFSPosixInfo")); | |
4575 | QFSPosixRetry: | |
4576 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4577 | (void **) &pSMBr); | |
4578 | if (rc) | |
4579 | return rc; | |
4580 | ||
4581 | params = 2; /* level */ | |
4582 | pSMB->TotalDataCount = 0; | |
4583 | pSMB->DataCount = 0; | |
4584 | pSMB->DataOffset = 0; | |
4585 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
582d21e5 SF |
4586 | /* BB find exact max SMB PDU from sess structure BB */ |
4587 | pSMB->MaxDataCount = cpu_to_le16(100); | |
1da177e4 LT |
4588 | pSMB->MaxSetupCount = 0; |
4589 | pSMB->Reserved = 0; | |
4590 | pSMB->Flags = 0; | |
4591 | pSMB->Timeout = 0; | |
4592 | pSMB->Reserved2 = 0; | |
4593 | byte_count = params + 1 /* pad */ ; | |
4594 | pSMB->ParameterCount = cpu_to_le16(params); | |
4595 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
50c2f753 SF |
4596 | pSMB->ParameterOffset = cpu_to_le16(offsetof(struct |
4597 | smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
1da177e4 LT |
4598 | pSMB->SetupCount = 1; |
4599 | pSMB->Reserved3 = 0; | |
4600 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4601 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_POSIX_FS_INFO); | |
4602 | pSMB->hdr.smb_buf_length += byte_count; | |
4603 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4604 | ||
4605 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4606 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4607 | if (rc) { | |
4608 | cFYI(1, ("Send error in QFSUnixInfo = %d", rc)); | |
4609 | } else { /* decode response */ | |
4610 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4611 | ||
4612 | if (rc || (pSMBr->ByteCount < 13)) { | |
4613 | rc = -EIO; /* bad smb */ | |
4614 | } else { | |
4615 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
4616 | response_data = | |
4617 | (FILE_SYSTEM_POSIX_INFO | |
4618 | *) (((char *) &pSMBr->hdr.Protocol) + | |
4619 | data_offset); | |
4620 | FSData->f_bsize = | |
4621 | le32_to_cpu(response_data->BlockSize); | |
4622 | FSData->f_blocks = | |
4623 | le64_to_cpu(response_data->TotalBlocks); | |
4624 | FSData->f_bfree = | |
4625 | le64_to_cpu(response_data->BlocksAvail); | |
790fe579 | 4626 | if (response_data->UserBlocksAvail == cpu_to_le64(-1)) { |
1da177e4 LT |
4627 | FSData->f_bavail = FSData->f_bfree; |
4628 | } else { | |
4629 | FSData->f_bavail = | |
50c2f753 | 4630 | le64_to_cpu(response_data->UserBlocksAvail); |
1da177e4 | 4631 | } |
790fe579 | 4632 | if (response_data->TotalFileNodes != cpu_to_le64(-1)) |
1da177e4 | 4633 | FSData->f_files = |
50c2f753 | 4634 | le64_to_cpu(response_data->TotalFileNodes); |
790fe579 | 4635 | if (response_data->FreeFileNodes != cpu_to_le64(-1)) |
1da177e4 | 4636 | FSData->f_ffree = |
50c2f753 | 4637 | le64_to_cpu(response_data->FreeFileNodes); |
1da177e4 LT |
4638 | } |
4639 | } | |
4640 | cifs_buf_release(pSMB); | |
4641 | ||
4642 | if (rc == -EAGAIN) | |
4643 | goto QFSPosixRetry; | |
4644 | ||
4645 | return rc; | |
4646 | } | |
4647 | ||
4648 | ||
50c2f753 SF |
4649 | /* We can not use write of zero bytes trick to |
4650 | set file size due to need for large file support. Also note that | |
4651 | this SetPathInfo is preferred to SetFileInfo based method in next | |
1da177e4 LT |
4652 | routine which is only needed to work around a sharing violation bug |
4653 | in Samba which this routine can run into */ | |
4654 | ||
4655 | int | |
4656 | CIFSSMBSetEOF(const int xid, struct cifsTconInfo *tcon, const char *fileName, | |
4b18f2a9 | 4657 | __u64 size, bool SetAllocation, |
737b758c | 4658 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
4659 | { |
4660 | struct smb_com_transaction2_spi_req *pSMB = NULL; | |
4661 | struct smb_com_transaction2_spi_rsp *pSMBr = NULL; | |
4662 | struct file_end_of_file_info *parm_data; | |
4663 | int name_len; | |
4664 | int rc = 0; | |
4665 | int bytes_returned = 0; | |
4666 | __u16 params, byte_count, data_count, param_offset, offset; | |
4667 | ||
4668 | cFYI(1, ("In SetEOF")); | |
4669 | SetEOFRetry: | |
4670 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4671 | (void **) &pSMBr); | |
4672 | if (rc) | |
4673 | return rc; | |
4674 | ||
4675 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
4676 | name_len = | |
b1a45695 | 4677 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 4678 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
4679 | name_len++; /* trailing null */ |
4680 | name_len *= 2; | |
3e87d803 | 4681 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
4682 | name_len = strnlen(fileName, PATH_MAX); |
4683 | name_len++; /* trailing null */ | |
4684 | strncpy(pSMB->FileName, fileName, name_len); | |
4685 | } | |
4686 | params = 6 + name_len; | |
26f57364 | 4687 | data_count = sizeof(struct file_end_of_file_info); |
1da177e4 | 4688 | pSMB->MaxParameterCount = cpu_to_le16(2); |
3e87d803 | 4689 | pSMB->MaxDataCount = cpu_to_le16(4100); |
1da177e4 LT |
4690 | pSMB->MaxSetupCount = 0; |
4691 | pSMB->Reserved = 0; | |
4692 | pSMB->Flags = 0; | |
4693 | pSMB->Timeout = 0; | |
4694 | pSMB->Reserved2 = 0; | |
4695 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 4696 | InformationLevel) - 4; |
1da177e4 | 4697 | offset = param_offset + params; |
790fe579 | 4698 | if (SetAllocation) { |
50c2f753 SF |
4699 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
4700 | pSMB->InformationLevel = | |
4701 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO2); | |
4702 | else | |
4703 | pSMB->InformationLevel = | |
4704 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO); | |
4705 | } else /* Set File Size */ { | |
1da177e4 LT |
4706 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
4707 | pSMB->InformationLevel = | |
50c2f753 | 4708 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO2); |
1da177e4 LT |
4709 | else |
4710 | pSMB->InformationLevel = | |
50c2f753 | 4711 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO); |
1da177e4 LT |
4712 | } |
4713 | ||
4714 | parm_data = | |
4715 | (struct file_end_of_file_info *) (((char *) &pSMB->hdr.Protocol) + | |
4716 | offset); | |
4717 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4718 | pSMB->DataOffset = cpu_to_le16(offset); | |
4719 | pSMB->SetupCount = 1; | |
4720 | pSMB->Reserved3 = 0; | |
4721 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
4722 | byte_count = 3 /* pad */ + params + data_count; | |
4723 | pSMB->DataCount = cpu_to_le16(data_count); | |
4724 | pSMB->TotalDataCount = pSMB->DataCount; | |
4725 | pSMB->ParameterCount = cpu_to_le16(params); | |
4726 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4727 | pSMB->Reserved4 = 0; | |
4728 | pSMB->hdr.smb_buf_length += byte_count; | |
4729 | parm_data->FileSize = cpu_to_le64(size); | |
4730 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4731 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4732 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
ad7a2926 | 4733 | if (rc) |
1da177e4 | 4734 | cFYI(1, ("SetPathInfo (file size) returned %d", rc)); |
1da177e4 LT |
4735 | |
4736 | cifs_buf_release(pSMB); | |
4737 | ||
4738 | if (rc == -EAGAIN) | |
4739 | goto SetEOFRetry; | |
4740 | ||
4741 | return rc; | |
4742 | } | |
4743 | ||
4744 | int | |
50c2f753 | 4745 | CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon, __u64 size, |
4b18f2a9 | 4746 | __u16 fid, __u32 pid_of_opener, bool SetAllocation) |
1da177e4 LT |
4747 | { |
4748 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
1da177e4 LT |
4749 | char *data_offset; |
4750 | struct file_end_of_file_info *parm_data; | |
4751 | int rc = 0; | |
1da177e4 LT |
4752 | __u16 params, param_offset, offset, byte_count, count; |
4753 | ||
4754 | cFYI(1, ("SetFileSize (via SetFileInfo) %lld", | |
4755 | (long long)size)); | |
cd63499c SF |
4756 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
4757 | ||
1da177e4 LT |
4758 | if (rc) |
4759 | return rc; | |
4760 | ||
4761 | pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener); | |
4762 | pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16)); | |
50c2f753 | 4763 | |
1da177e4 LT |
4764 | params = 6; |
4765 | pSMB->MaxSetupCount = 0; | |
4766 | pSMB->Reserved = 0; | |
4767 | pSMB->Flags = 0; | |
4768 | pSMB->Timeout = 0; | |
4769 | pSMB->Reserved2 = 0; | |
4770 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
4771 | offset = param_offset + params; | |
4772 | ||
50c2f753 | 4773 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; |
1da177e4 LT |
4774 | |
4775 | count = sizeof(struct file_end_of_file_info); | |
4776 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
582d21e5 SF |
4777 | /* BB find exact max SMB PDU from sess structure BB */ |
4778 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1da177e4 LT |
4779 | pSMB->SetupCount = 1; |
4780 | pSMB->Reserved3 = 0; | |
4781 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
4782 | byte_count = 3 /* pad */ + params + count; | |
4783 | pSMB->DataCount = cpu_to_le16(count); | |
4784 | pSMB->ParameterCount = cpu_to_le16(params); | |
4785 | pSMB->TotalDataCount = pSMB->DataCount; | |
4786 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4787 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4788 | parm_data = | |
50c2f753 SF |
4789 | (struct file_end_of_file_info *) (((char *) &pSMB->hdr.Protocol) |
4790 | + offset); | |
1da177e4 LT |
4791 | pSMB->DataOffset = cpu_to_le16(offset); |
4792 | parm_data->FileSize = cpu_to_le64(size); | |
4793 | pSMB->Fid = fid; | |
790fe579 | 4794 | if (SetAllocation) { |
1da177e4 LT |
4795 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
4796 | pSMB->InformationLevel = | |
4797 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO2); | |
4798 | else | |
4799 | pSMB->InformationLevel = | |
4800 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO); | |
50c2f753 | 4801 | } else /* Set File Size */ { |
1da177e4 LT |
4802 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
4803 | pSMB->InformationLevel = | |
50c2f753 | 4804 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO2); |
1da177e4 LT |
4805 | else |
4806 | pSMB->InformationLevel = | |
50c2f753 | 4807 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO); |
1da177e4 LT |
4808 | } |
4809 | pSMB->Reserved4 = 0; | |
4810 | pSMB->hdr.smb_buf_length += byte_count; | |
4811 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
133672ef | 4812 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); |
1da177e4 LT |
4813 | if (rc) { |
4814 | cFYI(1, | |
4815 | ("Send error in SetFileInfo (SetFileSize) = %d", | |
4816 | rc)); | |
4817 | } | |
4818 | ||
50c2f753 | 4819 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
1da177e4 LT |
4820 | since file handle passed in no longer valid */ |
4821 | ||
4822 | return rc; | |
4823 | } | |
4824 | ||
50c2f753 | 4825 | /* Some legacy servers such as NT4 require that the file times be set on |
1da177e4 LT |
4826 | an open handle, rather than by pathname - this is awkward due to |
4827 | potential access conflicts on the open, but it is unavoidable for these | |
4828 | old servers since the only other choice is to go from 100 nanosecond DCE | |
4829 | time and resort to the original setpathinfo level which takes the ancient | |
4830 | DOS time format with 2 second granularity */ | |
4831 | int | |
2dd2dfa0 JL |
4832 | CIFSSMBSetFileInfo(const int xid, struct cifsTconInfo *tcon, |
4833 | const FILE_BASIC_INFO *data, __u16 fid, __u32 pid_of_opener) | |
1da177e4 LT |
4834 | { |
4835 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
1da177e4 LT |
4836 | char *data_offset; |
4837 | int rc = 0; | |
1da177e4 LT |
4838 | __u16 params, param_offset, offset, byte_count, count; |
4839 | ||
4840 | cFYI(1, ("Set Times (via SetFileInfo)")); | |
cd63499c SF |
4841 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
4842 | ||
1da177e4 LT |
4843 | if (rc) |
4844 | return rc; | |
4845 | ||
2dd2dfa0 JL |
4846 | pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener); |
4847 | pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16)); | |
50c2f753 | 4848 | |
1da177e4 LT |
4849 | params = 6; |
4850 | pSMB->MaxSetupCount = 0; | |
4851 | pSMB->Reserved = 0; | |
4852 | pSMB->Flags = 0; | |
4853 | pSMB->Timeout = 0; | |
4854 | pSMB->Reserved2 = 0; | |
4855 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
4856 | offset = param_offset + params; | |
4857 | ||
50c2f753 | 4858 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; |
1da177e4 | 4859 | |
26f57364 | 4860 | count = sizeof(FILE_BASIC_INFO); |
1da177e4 | 4861 | pSMB->MaxParameterCount = cpu_to_le16(2); |
582d21e5 SF |
4862 | /* BB find max SMB PDU from sess */ |
4863 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1da177e4 LT |
4864 | pSMB->SetupCount = 1; |
4865 | pSMB->Reserved3 = 0; | |
4866 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
4867 | byte_count = 3 /* pad */ + params + count; | |
4868 | pSMB->DataCount = cpu_to_le16(count); | |
4869 | pSMB->ParameterCount = cpu_to_le16(params); | |
4870 | pSMB->TotalDataCount = pSMB->DataCount; | |
4871 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4872 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4873 | pSMB->DataOffset = cpu_to_le16(offset); | |
4874 | pSMB->Fid = fid; | |
4875 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) | |
4876 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO2); | |
4877 | else | |
4878 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO); | |
4879 | pSMB->Reserved4 = 0; | |
4880 | pSMB->hdr.smb_buf_length += byte_count; | |
4881 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
50c2f753 | 4882 | memcpy(data_offset, data, sizeof(FILE_BASIC_INFO)); |
133672ef | 4883 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); |
ad7a2926 | 4884 | if (rc) |
50c2f753 | 4885 | cFYI(1, ("Send error in Set Time (SetFileInfo) = %d", rc)); |
1da177e4 | 4886 | |
50c2f753 | 4887 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
1da177e4 LT |
4888 | since file handle passed in no longer valid */ |
4889 | ||
4890 | return rc; | |
4891 | } | |
4892 | ||
6d22f098 JL |
4893 | int |
4894 | CIFSSMBSetFileDisposition(const int xid, struct cifsTconInfo *tcon, | |
4895 | bool delete_file, __u16 fid, __u32 pid_of_opener) | |
4896 | { | |
4897 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
4898 | char *data_offset; | |
4899 | int rc = 0; | |
4900 | __u16 params, param_offset, offset, byte_count, count; | |
4901 | ||
4902 | cFYI(1, ("Set File Disposition (via SetFileInfo)")); | |
4903 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); | |
4904 | ||
4905 | if (rc) | |
4906 | return rc; | |
4907 | ||
4908 | pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener); | |
4909 | pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16)); | |
4910 | ||
4911 | params = 6; | |
4912 | pSMB->MaxSetupCount = 0; | |
4913 | pSMB->Reserved = 0; | |
4914 | pSMB->Flags = 0; | |
4915 | pSMB->Timeout = 0; | |
4916 | pSMB->Reserved2 = 0; | |
4917 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
4918 | offset = param_offset + params; | |
4919 | ||
4920 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
4921 | ||
4922 | count = 1; | |
4923 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4924 | /* BB find max SMB PDU from sess */ | |
4925 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
4926 | pSMB->SetupCount = 1; | |
4927 | pSMB->Reserved3 = 0; | |
4928 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
4929 | byte_count = 3 /* pad */ + params + count; | |
4930 | pSMB->DataCount = cpu_to_le16(count); | |
4931 | pSMB->ParameterCount = cpu_to_le16(params); | |
4932 | pSMB->TotalDataCount = pSMB->DataCount; | |
4933 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4934 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4935 | pSMB->DataOffset = cpu_to_le16(offset); | |
4936 | pSMB->Fid = fid; | |
4937 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_DISPOSITION_INFO); | |
4938 | pSMB->Reserved4 = 0; | |
4939 | pSMB->hdr.smb_buf_length += byte_count; | |
4940 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4941 | *data_offset = delete_file ? 1 : 0; | |
4942 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); | |
4943 | if (rc) | |
4944 | cFYI(1, ("Send error in SetFileDisposition = %d", rc)); | |
4945 | ||
4946 | return rc; | |
4947 | } | |
1da177e4 LT |
4948 | |
4949 | int | |
6fc000e5 JL |
4950 | CIFSSMBSetPathInfo(const int xid, struct cifsTconInfo *tcon, |
4951 | const char *fileName, const FILE_BASIC_INFO *data, | |
4952 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
4953 | { |
4954 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
4955 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
4956 | int name_len; | |
4957 | int rc = 0; | |
4958 | int bytes_returned = 0; | |
4959 | char *data_offset; | |
4960 | __u16 params, param_offset, offset, byte_count, count; | |
4961 | ||
4962 | cFYI(1, ("In SetTimes")); | |
4963 | ||
4964 | SetTimesRetry: | |
4965 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4966 | (void **) &pSMBr); | |
4967 | if (rc) | |
4968 | return rc; | |
4969 | ||
4970 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
4971 | name_len = | |
b1a45695 | 4972 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 4973 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
4974 | name_len++; /* trailing null */ |
4975 | name_len *= 2; | |
50c2f753 | 4976 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
4977 | name_len = strnlen(fileName, PATH_MAX); |
4978 | name_len++; /* trailing null */ | |
4979 | strncpy(pSMB->FileName, fileName, name_len); | |
4980 | } | |
4981 | ||
4982 | params = 6 + name_len; | |
26f57364 | 4983 | count = sizeof(FILE_BASIC_INFO); |
1da177e4 | 4984 | pSMB->MaxParameterCount = cpu_to_le16(2); |
582d21e5 SF |
4985 | /* BB find max SMB PDU from sess structure BB */ |
4986 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1da177e4 LT |
4987 | pSMB->MaxSetupCount = 0; |
4988 | pSMB->Reserved = 0; | |
4989 | pSMB->Flags = 0; | |
4990 | pSMB->Timeout = 0; | |
4991 | pSMB->Reserved2 = 0; | |
4992 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 4993 | InformationLevel) - 4; |
1da177e4 LT |
4994 | offset = param_offset + params; |
4995 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
4996 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4997 | pSMB->DataOffset = cpu_to_le16(offset); | |
4998 | pSMB->SetupCount = 1; | |
4999 | pSMB->Reserved3 = 0; | |
5000 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
5001 | byte_count = 3 /* pad */ + params + count; | |
5002 | ||
5003 | pSMB->DataCount = cpu_to_le16(count); | |
5004 | pSMB->ParameterCount = cpu_to_le16(params); | |
5005 | pSMB->TotalDataCount = pSMB->DataCount; | |
5006 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
5007 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) | |
5008 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO2); | |
5009 | else | |
5010 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO); | |
5011 | pSMB->Reserved4 = 0; | |
5012 | pSMB->hdr.smb_buf_length += byte_count; | |
26f57364 | 5013 | memcpy(data_offset, data, sizeof(FILE_BASIC_INFO)); |
1da177e4 LT |
5014 | pSMB->ByteCount = cpu_to_le16(byte_count); |
5015 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
5016 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
ad7a2926 | 5017 | if (rc) |
1da177e4 | 5018 | cFYI(1, ("SetPathInfo (times) returned %d", rc)); |
1da177e4 LT |
5019 | |
5020 | cifs_buf_release(pSMB); | |
5021 | ||
5022 | if (rc == -EAGAIN) | |
5023 | goto SetTimesRetry; | |
5024 | ||
5025 | return rc; | |
5026 | } | |
5027 | ||
5028 | /* Can not be used to set time stamps yet (due to old DOS time format) */ | |
5029 | /* Can be used to set attributes */ | |
5030 | #if 0 /* Possibly not needed - since it turns out that strangely NT4 has a bug | |
5031 | handling it anyway and NT4 was what we thought it would be needed for | |
5032 | Do not delete it until we prove whether needed for Win9x though */ | |
5033 | int | |
5034 | CIFSSMBSetAttrLegacy(int xid, struct cifsTconInfo *tcon, char *fileName, | |
5035 | __u16 dos_attrs, const struct nls_table *nls_codepage) | |
5036 | { | |
5037 | SETATTR_REQ *pSMB = NULL; | |
5038 | SETATTR_RSP *pSMBr = NULL; | |
5039 | int rc = 0; | |
5040 | int bytes_returned; | |
5041 | int name_len; | |
5042 | ||
5043 | cFYI(1, ("In SetAttrLegacy")); | |
5044 | ||
5045 | SetAttrLgcyRetry: | |
5046 | rc = smb_init(SMB_COM_SETATTR, 8, tcon, (void **) &pSMB, | |
5047 | (void **) &pSMBr); | |
5048 | if (rc) | |
5049 | return rc; | |
5050 | ||
5051 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
5052 | name_len = | |
50c2f753 | 5053 | ConvertToUCS((__le16 *) pSMB->fileName, fileName, |
1da177e4 LT |
5054 | PATH_MAX, nls_codepage); |
5055 | name_len++; /* trailing null */ | |
5056 | name_len *= 2; | |
50c2f753 | 5057 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
5058 | name_len = strnlen(fileName, PATH_MAX); |
5059 | name_len++; /* trailing null */ | |
5060 | strncpy(pSMB->fileName, fileName, name_len); | |
5061 | } | |
5062 | pSMB->attr = cpu_to_le16(dos_attrs); | |
5063 | pSMB->BufferFormat = 0x04; | |
5064 | pSMB->hdr.smb_buf_length += name_len + 1; | |
5065 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
5066 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
5067 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
ad7a2926 | 5068 | if (rc) |
1da177e4 | 5069 | cFYI(1, ("Error in LegacySetAttr = %d", rc)); |
1da177e4 LT |
5070 | |
5071 | cifs_buf_release(pSMB); | |
5072 | ||
5073 | if (rc == -EAGAIN) | |
5074 | goto SetAttrLgcyRetry; | |
5075 | ||
5076 | return rc; | |
5077 | } | |
5078 | #endif /* temporarily unneeded SetAttr legacy function */ | |
5079 | ||
654cf14a JL |
5080 | static void |
5081 | cifs_fill_unix_set_info(FILE_UNIX_BASIC_INFO *data_offset, | |
5082 | const struct cifs_unix_set_info_args *args) | |
5083 | { | |
5084 | u64 mode = args->mode; | |
5085 | ||
5086 | /* | |
5087 | * Samba server ignores set of file size to zero due to bugs in some | |
5088 | * older clients, but we should be precise - we use SetFileSize to | |
5089 | * set file size and do not want to truncate file size to zero | |
5090 | * accidently as happened on one Samba server beta by putting | |
5091 | * zero instead of -1 here | |
5092 | */ | |
5093 | data_offset->EndOfFile = cpu_to_le64(NO_CHANGE_64); | |
5094 | data_offset->NumOfBytes = cpu_to_le64(NO_CHANGE_64); | |
5095 | data_offset->LastStatusChange = cpu_to_le64(args->ctime); | |
5096 | data_offset->LastAccessTime = cpu_to_le64(args->atime); | |
5097 | data_offset->LastModificationTime = cpu_to_le64(args->mtime); | |
5098 | data_offset->Uid = cpu_to_le64(args->uid); | |
5099 | data_offset->Gid = cpu_to_le64(args->gid); | |
5100 | /* better to leave device as zero when it is */ | |
5101 | data_offset->DevMajor = cpu_to_le64(MAJOR(args->device)); | |
5102 | data_offset->DevMinor = cpu_to_le64(MINOR(args->device)); | |
5103 | data_offset->Permissions = cpu_to_le64(mode); | |
5104 | ||
5105 | if (S_ISREG(mode)) | |
5106 | data_offset->Type = cpu_to_le32(UNIX_FILE); | |
5107 | else if (S_ISDIR(mode)) | |
5108 | data_offset->Type = cpu_to_le32(UNIX_DIR); | |
5109 | else if (S_ISLNK(mode)) | |
5110 | data_offset->Type = cpu_to_le32(UNIX_SYMLINK); | |
5111 | else if (S_ISCHR(mode)) | |
5112 | data_offset->Type = cpu_to_le32(UNIX_CHARDEV); | |
5113 | else if (S_ISBLK(mode)) | |
5114 | data_offset->Type = cpu_to_le32(UNIX_BLOCKDEV); | |
5115 | else if (S_ISFIFO(mode)) | |
5116 | data_offset->Type = cpu_to_le32(UNIX_FIFO); | |
5117 | else if (S_ISSOCK(mode)) | |
5118 | data_offset->Type = cpu_to_le32(UNIX_SOCKET); | |
5119 | } | |
5120 | ||
3bbeeb3c JL |
5121 | int |
5122 | CIFSSMBUnixSetFileInfo(const int xid, struct cifsTconInfo *tcon, | |
5123 | const struct cifs_unix_set_info_args *args, | |
5124 | u16 fid, u32 pid_of_opener) | |
5125 | { | |
5126 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
5127 | FILE_UNIX_BASIC_INFO *data_offset; | |
5128 | int rc = 0; | |
5129 | u16 params, param_offset, offset, byte_count, count; | |
5130 | ||
5131 | cFYI(1, ("Set Unix Info (via SetFileInfo)")); | |
5132 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); | |
5133 | ||
5134 | if (rc) | |
5135 | return rc; | |
5136 | ||
5137 | pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener); | |
5138 | pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16)); | |
5139 | ||
5140 | params = 6; | |
5141 | pSMB->MaxSetupCount = 0; | |
5142 | pSMB->Reserved = 0; | |
5143 | pSMB->Flags = 0; | |
5144 | pSMB->Timeout = 0; | |
5145 | pSMB->Reserved2 = 0; | |
5146 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
5147 | offset = param_offset + params; | |
5148 | ||
5149 | data_offset = (FILE_UNIX_BASIC_INFO *) | |
5150 | ((char *)(&pSMB->hdr.Protocol) + offset); | |
5151 | count = sizeof(FILE_UNIX_BASIC_INFO); | |
5152 | ||
5153 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
5154 | /* BB find max SMB PDU from sess */ | |
5155 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
5156 | pSMB->SetupCount = 1; | |
5157 | pSMB->Reserved3 = 0; | |
5158 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
5159 | byte_count = 3 /* pad */ + params + count; | |
5160 | pSMB->DataCount = cpu_to_le16(count); | |
5161 | pSMB->ParameterCount = cpu_to_le16(params); | |
5162 | pSMB->TotalDataCount = pSMB->DataCount; | |
5163 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
5164 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
5165 | pSMB->DataOffset = cpu_to_le16(offset); | |
5166 | pSMB->Fid = fid; | |
5167 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_BASIC); | |
5168 | pSMB->Reserved4 = 0; | |
5169 | pSMB->hdr.smb_buf_length += byte_count; | |
5170 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
5171 | ||
5172 | cifs_fill_unix_set_info(data_offset, args); | |
5173 | ||
5174 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); | |
5175 | if (rc) | |
5176 | cFYI(1, ("Send error in Set Time (SetFileInfo) = %d", rc)); | |
5177 | ||
5178 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
5179 | since file handle passed in no longer valid */ | |
5180 | ||
5181 | return rc; | |
5182 | } | |
5183 | ||
1da177e4 | 5184 | int |
01ea95e3 JL |
5185 | CIFSSMBUnixSetPathInfo(const int xid, struct cifsTconInfo *tcon, char *fileName, |
5186 | const struct cifs_unix_set_info_args *args, | |
5187 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
5188 | { |
5189 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
5190 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
5191 | int name_len; | |
5192 | int rc = 0; | |
5193 | int bytes_returned = 0; | |
5194 | FILE_UNIX_BASIC_INFO *data_offset; | |
5195 | __u16 params, param_offset, offset, count, byte_count; | |
5196 | ||
5197 | cFYI(1, ("In SetUID/GID/Mode")); | |
5198 | setPermsRetry: | |
5199 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
5200 | (void **) &pSMBr); | |
5201 | if (rc) | |
5202 | return rc; | |
5203 | ||
5204 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
5205 | name_len = | |
50c2f753 | 5206 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 5207 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
5208 | name_len++; /* trailing null */ |
5209 | name_len *= 2; | |
3e87d803 | 5210 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
5211 | name_len = strnlen(fileName, PATH_MAX); |
5212 | name_len++; /* trailing null */ | |
5213 | strncpy(pSMB->FileName, fileName, name_len); | |
5214 | } | |
5215 | ||
5216 | params = 6 + name_len; | |
26f57364 | 5217 | count = sizeof(FILE_UNIX_BASIC_INFO); |
1da177e4 | 5218 | pSMB->MaxParameterCount = cpu_to_le16(2); |
582d21e5 SF |
5219 | /* BB find max SMB PDU from sess structure BB */ |
5220 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1da177e4 LT |
5221 | pSMB->MaxSetupCount = 0; |
5222 | pSMB->Reserved = 0; | |
5223 | pSMB->Flags = 0; | |
5224 | pSMB->Timeout = 0; | |
5225 | pSMB->Reserved2 = 0; | |
5226 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 5227 | InformationLevel) - 4; |
1da177e4 LT |
5228 | offset = param_offset + params; |
5229 | data_offset = | |
5230 | (FILE_UNIX_BASIC_INFO *) ((char *) &pSMB->hdr.Protocol + | |
5231 | offset); | |
5232 | memset(data_offset, 0, count); | |
5233 | pSMB->DataOffset = cpu_to_le16(offset); | |
5234 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
5235 | pSMB->SetupCount = 1; | |
5236 | pSMB->Reserved3 = 0; | |
5237 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
5238 | byte_count = 3 /* pad */ + params + count; | |
5239 | pSMB->ParameterCount = cpu_to_le16(params); | |
5240 | pSMB->DataCount = cpu_to_le16(count); | |
5241 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
5242 | pSMB->TotalDataCount = pSMB->DataCount; | |
5243 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_BASIC); | |
5244 | pSMB->Reserved4 = 0; | |
5245 | pSMB->hdr.smb_buf_length += byte_count; | |
1da177e4 | 5246 | |
654cf14a | 5247 | cifs_fill_unix_set_info(data_offset, args); |
1da177e4 LT |
5248 | |
5249 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
5250 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
5251 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
ad7a2926 | 5252 | if (rc) |
1da177e4 | 5253 | cFYI(1, ("SetPathInfo (perms) returned %d", rc)); |
1da177e4 | 5254 | |
0d817bc0 | 5255 | cifs_buf_release(pSMB); |
1da177e4 LT |
5256 | if (rc == -EAGAIN) |
5257 | goto setPermsRetry; | |
5258 | return rc; | |
5259 | } | |
5260 | ||
50c2f753 | 5261 | int CIFSSMBNotify(const int xid, struct cifsTconInfo *tcon, |
167a251a | 5262 | const int notify_subdirs, const __u16 netfid, |
50c2f753 | 5263 | __u32 filter, struct file *pfile, int multishot, |
167a251a | 5264 | const struct nls_table *nls_codepage) |
1da177e4 LT |
5265 | { |
5266 | int rc = 0; | |
50c2f753 SF |
5267 | struct smb_com_transaction_change_notify_req *pSMB = NULL; |
5268 | struct smb_com_ntransaction_change_notify_rsp *pSMBr = NULL; | |
abb15b8a | 5269 | struct dir_notify_req *dnotify_req; |
1da177e4 LT |
5270 | int bytes_returned; |
5271 | ||
50c2f753 | 5272 | cFYI(1, ("In CIFSSMBNotify for file handle %d", (int)netfid)); |
1da177e4 | 5273 | rc = smb_init(SMB_COM_NT_TRANSACT, 23, tcon, (void **) &pSMB, |
50c2f753 | 5274 | (void **) &pSMBr); |
1da177e4 LT |
5275 | if (rc) |
5276 | return rc; | |
5277 | ||
5278 | pSMB->TotalParameterCount = 0 ; | |
5279 | pSMB->TotalDataCount = 0; | |
5280 | pSMB->MaxParameterCount = cpu_to_le32(2); | |
5281 | /* BB find exact data count max from sess structure BB */ | |
5282 | pSMB->MaxDataCount = 0; /* same in little endian or be */ | |
0a4b92c0 SF |
5283 | /* BB VERIFY verify which is correct for above BB */ |
5284 | pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf - | |
5285 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
5286 | ||
1da177e4 LT |
5287 | pSMB->MaxSetupCount = 4; |
5288 | pSMB->Reserved = 0; | |
5289 | pSMB->ParameterOffset = 0; | |
5290 | pSMB->DataCount = 0; | |
5291 | pSMB->DataOffset = 0; | |
5292 | pSMB->SetupCount = 4; /* single byte does not need le conversion */ | |
5293 | pSMB->SubCommand = cpu_to_le16(NT_TRANSACT_NOTIFY_CHANGE); | |
5294 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
790fe579 | 5295 | if (notify_subdirs) |
1da177e4 LT |
5296 | pSMB->WatchTree = 1; /* one byte - no le conversion needed */ |
5297 | pSMB->Reserved2 = 0; | |
5298 | pSMB->CompletionFilter = cpu_to_le32(filter); | |
5299 | pSMB->Fid = netfid; /* file handle always le */ | |
5300 | pSMB->ByteCount = 0; | |
5301 | ||
5302 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
133672ef SF |
5303 | (struct smb_hdr *)pSMBr, &bytes_returned, |
5304 | CIFS_ASYNC_OP); | |
1da177e4 LT |
5305 | if (rc) { |
5306 | cFYI(1, ("Error in Notify = %d", rc)); | |
ff5dbd9e SF |
5307 | } else { |
5308 | /* Add file to outstanding requests */ | |
50c2f753 | 5309 | /* BB change to kmem cache alloc */ |
5cbded58 | 5310 | dnotify_req = kmalloc( |
47c786e7 SF |
5311 | sizeof(struct dir_notify_req), |
5312 | GFP_KERNEL); | |
790fe579 | 5313 | if (dnotify_req) { |
47c786e7 SF |
5314 | dnotify_req->Pid = pSMB->hdr.Pid; |
5315 | dnotify_req->PidHigh = pSMB->hdr.PidHigh; | |
5316 | dnotify_req->Mid = pSMB->hdr.Mid; | |
5317 | dnotify_req->Tid = pSMB->hdr.Tid; | |
5318 | dnotify_req->Uid = pSMB->hdr.Uid; | |
5319 | dnotify_req->netfid = netfid; | |
5320 | dnotify_req->pfile = pfile; | |
5321 | dnotify_req->filter = filter; | |
5322 | dnotify_req->multishot = multishot; | |
5323 | spin_lock(&GlobalMid_Lock); | |
50c2f753 | 5324 | list_add_tail(&dnotify_req->lhead, |
47c786e7 SF |
5325 | &GlobalDnotifyReqList); |
5326 | spin_unlock(&GlobalMid_Lock); | |
50c2f753 | 5327 | } else |
47c786e7 | 5328 | rc = -ENOMEM; |
1da177e4 LT |
5329 | } |
5330 | cifs_buf_release(pSMB); | |
50c2f753 | 5331 | return rc; |
1da177e4 LT |
5332 | } |
5333 | #ifdef CONFIG_CIFS_XATTR | |
5334 | ssize_t | |
5335 | CIFSSMBQAllEAs(const int xid, struct cifsTconInfo *tcon, | |
5336 | const unsigned char *searchName, | |
50c2f753 | 5337 | char *EAData, size_t buf_size, |
737b758c | 5338 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
5339 | { |
5340 | /* BB assumes one setup word */ | |
5341 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
5342 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
5343 | int rc = 0; | |
5344 | int bytes_returned; | |
5345 | int name_len; | |
50c2f753 SF |
5346 | struct fea *temp_fea; |
5347 | char *temp_ptr; | |
1da177e4 LT |
5348 | __u16 params, byte_count; |
5349 | ||
5350 | cFYI(1, ("In Query All EAs path %s", searchName)); | |
5351 | QAllEAsRetry: | |
5352 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
5353 | (void **) &pSMBr); | |
5354 | if (rc) | |
5355 | return rc; | |
5356 | ||
5357 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
5358 | name_len = | |
50c2f753 | 5359 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 5360 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
5361 | name_len++; /* trailing null */ |
5362 | name_len *= 2; | |
5363 | } else { /* BB improve the check for buffer overruns BB */ | |
5364 | name_len = strnlen(searchName, PATH_MAX); | |
5365 | name_len++; /* trailing null */ | |
5366 | strncpy(pSMB->FileName, searchName, name_len); | |
5367 | } | |
5368 | ||
50c2f753 | 5369 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */; |
1da177e4 LT |
5370 | pSMB->TotalDataCount = 0; |
5371 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
582d21e5 SF |
5372 | /* BB find exact max SMB PDU from sess structure BB */ |
5373 | pSMB->MaxDataCount = cpu_to_le16(4000); | |
1da177e4 LT |
5374 | pSMB->MaxSetupCount = 0; |
5375 | pSMB->Reserved = 0; | |
5376 | pSMB->Flags = 0; | |
5377 | pSMB->Timeout = 0; | |
5378 | pSMB->Reserved2 = 0; | |
5379 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 5380 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
1da177e4 LT |
5381 | pSMB->DataCount = 0; |
5382 | pSMB->DataOffset = 0; | |
5383 | pSMB->SetupCount = 1; | |
5384 | pSMB->Reserved3 = 0; | |
5385 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
5386 | byte_count = params + 1 /* pad */ ; | |
5387 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
5388 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
5389 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_QUERY_ALL_EAS); | |
5390 | pSMB->Reserved4 = 0; | |
5391 | pSMB->hdr.smb_buf_length += byte_count; | |
5392 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
5393 | ||
5394 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
5395 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
5396 | if (rc) { | |
5397 | cFYI(1, ("Send error in QueryAllEAs = %d", rc)); | |
5398 | } else { /* decode response */ | |
5399 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
5400 | ||
5401 | /* BB also check enough total bytes returned */ | |
5402 | /* BB we need to improve the validity checking | |
5403 | of these trans2 responses */ | |
50c2f753 | 5404 | if (rc || (pSMBr->ByteCount < 4)) |
1da177e4 LT |
5405 | rc = -EIO; /* bad smb */ |
5406 | /* else if (pFindData){ | |
5407 | memcpy((char *) pFindData, | |
5408 | (char *) &pSMBr->hdr.Protocol + | |
5409 | data_offset, kl); | |
5410 | }*/ else { | |
5411 | /* check that length of list is not more than bcc */ | |
5412 | /* check that each entry does not go beyond length | |
5413 | of list */ | |
5414 | /* check that each element of each entry does not | |
5415 | go beyond end of list */ | |
5416 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
50c2f753 | 5417 | struct fealist *ea_response_data; |
1da177e4 LT |
5418 | rc = 0; |
5419 | /* validate_trans2_offsets() */ | |
790fe579 | 5420 | /* BB check if start of smb + data_offset > &bcc+ bcc */ |
1da177e4 LT |
5421 | ea_response_data = (struct fealist *) |
5422 | (((char *) &pSMBr->hdr.Protocol) + | |
5423 | data_offset); | |
5424 | name_len = le32_to_cpu(ea_response_data->list_len); | |
50c2f753 | 5425 | cFYI(1, ("ea length %d", name_len)); |
790fe579 | 5426 | if (name_len <= 8) { |
1da177e4 | 5427 | /* returned EA size zeroed at top of function */ |
50c2f753 | 5428 | cFYI(1, ("empty EA list returned from server")); |
1da177e4 LT |
5429 | } else { |
5430 | /* account for ea list len */ | |
5431 | name_len -= 4; | |
5432 | temp_fea = ea_response_data->list; | |
5433 | temp_ptr = (char *)temp_fea; | |
50c2f753 | 5434 | while (name_len > 0) { |
1da177e4 LT |
5435 | __u16 value_len; |
5436 | name_len -= 4; | |
5437 | temp_ptr += 4; | |
5438 | rc += temp_fea->name_len; | |
5439 | /* account for prefix user. and trailing null */ | |
790fe579 SF |
5440 | rc = rc + 5 + 1; |
5441 | if (rc < (int)buf_size) { | |
50c2f753 SF |
5442 | memcpy(EAData, "user.", 5); |
5443 | EAData += 5; | |
5444 | memcpy(EAData, temp_ptr, | |
5445 | temp_fea->name_len); | |
5446 | EAData += temp_fea->name_len; | |
1da177e4 LT |
5447 | /* null terminate name */ |
5448 | *EAData = 0; | |
5449 | EAData = EAData + 1; | |
790fe579 | 5450 | } else if (buf_size == 0) { |
1da177e4 LT |
5451 | /* skip copy - calc size only */ |
5452 | } else { | |
5453 | /* stop before overrun buffer */ | |
5454 | rc = -ERANGE; | |
5455 | break; | |
5456 | } | |
5457 | name_len -= temp_fea->name_len; | |
5458 | temp_ptr += temp_fea->name_len; | |
5459 | /* account for trailing null */ | |
5460 | name_len--; | |
5461 | temp_ptr++; | |
50c2f753 SF |
5462 | value_len = |
5463 | le16_to_cpu(temp_fea->value_len); | |
1da177e4 LT |
5464 | name_len -= value_len; |
5465 | temp_ptr += value_len; | |
50c2f753 SF |
5466 | /* BB check that temp_ptr is still |
5467 | within the SMB BB*/ | |
5468 | ||
5469 | /* no trailing null to account for | |
5470 | in value len */ | |
1da177e4 LT |
5471 | /* go on to next EA */ |
5472 | temp_fea = (struct fea *)temp_ptr; | |
5473 | } | |
5474 | } | |
5475 | } | |
5476 | } | |
0d817bc0 | 5477 | cifs_buf_release(pSMB); |
1da177e4 LT |
5478 | if (rc == -EAGAIN) |
5479 | goto QAllEAsRetry; | |
5480 | ||
5481 | return (ssize_t)rc; | |
5482 | } | |
5483 | ||
50c2f753 SF |
5484 | ssize_t CIFSSMBQueryEA(const int xid, struct cifsTconInfo *tcon, |
5485 | const unsigned char *searchName, const unsigned char *ea_name, | |
5486 | unsigned char *ea_value, size_t buf_size, | |
737b758c | 5487 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
5488 | { |
5489 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
5490 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
5491 | int rc = 0; | |
5492 | int bytes_returned; | |
5493 | int name_len; | |
50c2f753 SF |
5494 | struct fea *temp_fea; |
5495 | char *temp_ptr; | |
1da177e4 LT |
5496 | __u16 params, byte_count; |
5497 | ||
5498 | cFYI(1, ("In Query EA path %s", searchName)); | |
5499 | QEARetry: | |
5500 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
5501 | (void **) &pSMBr); | |
5502 | if (rc) | |
5503 | return rc; | |
5504 | ||
5505 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
5506 | name_len = | |
50c2f753 | 5507 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 5508 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
5509 | name_len++; /* trailing null */ |
5510 | name_len *= 2; | |
5511 | } else { /* BB improve the check for buffer overruns BB */ | |
5512 | name_len = strnlen(searchName, PATH_MAX); | |
5513 | name_len++; /* trailing null */ | |
5514 | strncpy(pSMB->FileName, searchName, name_len); | |
5515 | } | |
5516 | ||
50c2f753 | 5517 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */; |
1da177e4 LT |
5518 | pSMB->TotalDataCount = 0; |
5519 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
582d21e5 SF |
5520 | /* BB find exact max SMB PDU from sess structure BB */ |
5521 | pSMB->MaxDataCount = cpu_to_le16(4000); | |
1da177e4 LT |
5522 | pSMB->MaxSetupCount = 0; |
5523 | pSMB->Reserved = 0; | |
5524 | pSMB->Flags = 0; | |
5525 | pSMB->Timeout = 0; | |
5526 | pSMB->Reserved2 = 0; | |
5527 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 5528 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
1da177e4 LT |
5529 | pSMB->DataCount = 0; |
5530 | pSMB->DataOffset = 0; | |
5531 | pSMB->SetupCount = 1; | |
5532 | pSMB->Reserved3 = 0; | |
5533 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
5534 | byte_count = params + 1 /* pad */ ; | |
5535 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
5536 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
5537 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_QUERY_ALL_EAS); | |
5538 | pSMB->Reserved4 = 0; | |
5539 | pSMB->hdr.smb_buf_length += byte_count; | |
5540 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
5541 | ||
5542 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
5543 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
5544 | if (rc) { | |
5545 | cFYI(1, ("Send error in Query EA = %d", rc)); | |
5546 | } else { /* decode response */ | |
5547 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
5548 | ||
5549 | /* BB also check enough total bytes returned */ | |
5550 | /* BB we need to improve the validity checking | |
5551 | of these trans2 responses */ | |
50c2f753 | 5552 | if (rc || (pSMBr->ByteCount < 4)) |
1da177e4 LT |
5553 | rc = -EIO; /* bad smb */ |
5554 | /* else if (pFindData){ | |
5555 | memcpy((char *) pFindData, | |
5556 | (char *) &pSMBr->hdr.Protocol + | |
5557 | data_offset, kl); | |
5558 | }*/ else { | |
5559 | /* check that length of list is not more than bcc */ | |
5560 | /* check that each entry does not go beyond length | |
5561 | of list */ | |
5562 | /* check that each element of each entry does not | |
5563 | go beyond end of list */ | |
5564 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
50c2f753 | 5565 | struct fealist *ea_response_data; |
1da177e4 LT |
5566 | rc = -ENODATA; |
5567 | /* validate_trans2_offsets() */ | |
790fe579 | 5568 | /* BB check if start of smb + data_offset > &bcc+ bcc*/ |
1da177e4 LT |
5569 | ea_response_data = (struct fealist *) |
5570 | (((char *) &pSMBr->hdr.Protocol) + | |
5571 | data_offset); | |
5572 | name_len = le32_to_cpu(ea_response_data->list_len); | |
50c2f753 | 5573 | cFYI(1, ("ea length %d", name_len)); |
790fe579 | 5574 | if (name_len <= 8) { |
1da177e4 | 5575 | /* returned EA size zeroed at top of function */ |
50c2f753 | 5576 | cFYI(1, ("empty EA list returned from server")); |
1da177e4 LT |
5577 | } else { |
5578 | /* account for ea list len */ | |
5579 | name_len -= 4; | |
5580 | temp_fea = ea_response_data->list; | |
5581 | temp_ptr = (char *)temp_fea; | |
5582 | /* loop through checking if we have a matching | |
5583 | name and then return the associated value */ | |
50c2f753 | 5584 | while (name_len > 0) { |
1da177e4 LT |
5585 | __u16 value_len; |
5586 | name_len -= 4; | |
5587 | temp_ptr += 4; | |
50c2f753 SF |
5588 | value_len = |
5589 | le16_to_cpu(temp_fea->value_len); | |
5590 | /* BB validate that value_len falls within SMB, | |
5591 | even though maximum for name_len is 255 */ | |
790fe579 | 5592 | if (memcmp(temp_fea->name, ea_name, |
1da177e4 LT |
5593 | temp_fea->name_len) == 0) { |
5594 | /* found a match */ | |
5595 | rc = value_len; | |
5596 | /* account for prefix user. and trailing null */ | |
790fe579 | 5597 | if (rc <= (int)buf_size) { |
1da177e4 LT |
5598 | memcpy(ea_value, |
5599 | temp_fea->name+temp_fea->name_len+1, | |
5600 | rc); | |
50c2f753 SF |
5601 | /* ea values, unlike ea |
5602 | names, are not null | |
5603 | terminated */ | |
790fe579 | 5604 | } else if (buf_size == 0) { |
1da177e4 LT |
5605 | /* skip copy - calc size only */ |
5606 | } else { | |
50c2f753 | 5607 | /* stop before overrun buffer */ |
1da177e4 LT |
5608 | rc = -ERANGE; |
5609 | } | |
5610 | break; | |
5611 | } | |
5612 | name_len -= temp_fea->name_len; | |
5613 | temp_ptr += temp_fea->name_len; | |
5614 | /* account for trailing null */ | |
5615 | name_len--; | |
5616 | temp_ptr++; | |
5617 | name_len -= value_len; | |
5618 | temp_ptr += value_len; | |
50c2f753 SF |
5619 | /* No trailing null to account for in |
5620 | value_len. Go on to next EA */ | |
1da177e4 LT |
5621 | temp_fea = (struct fea *)temp_ptr; |
5622 | } | |
50c2f753 | 5623 | } |
1da177e4 LT |
5624 | } |
5625 | } | |
0d817bc0 | 5626 | cifs_buf_release(pSMB); |
1da177e4 LT |
5627 | if (rc == -EAGAIN) |
5628 | goto QEARetry; | |
5629 | ||
5630 | return (ssize_t)rc; | |
5631 | } | |
5632 | ||
5633 | int | |
5634 | CIFSSMBSetEA(const int xid, struct cifsTconInfo *tcon, const char *fileName, | |
50c2f753 SF |
5635 | const char *ea_name, const void *ea_value, |
5636 | const __u16 ea_value_len, const struct nls_table *nls_codepage, | |
5637 | int remap) | |
1da177e4 LT |
5638 | { |
5639 | struct smb_com_transaction2_spi_req *pSMB = NULL; | |
5640 | struct smb_com_transaction2_spi_rsp *pSMBr = NULL; | |
5641 | struct fealist *parm_data; | |
5642 | int name_len; | |
5643 | int rc = 0; | |
5644 | int bytes_returned = 0; | |
5645 | __u16 params, param_offset, byte_count, offset, count; | |
5646 | ||
5647 | cFYI(1, ("In SetEA")); | |
5648 | SetEARetry: | |
5649 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
5650 | (void **) &pSMBr); | |
5651 | if (rc) | |
5652 | return rc; | |
5653 | ||
5654 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
5655 | name_len = | |
50c2f753 | 5656 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 5657 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
5658 | name_len++; /* trailing null */ |
5659 | name_len *= 2; | |
50c2f753 | 5660 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
5661 | name_len = strnlen(fileName, PATH_MAX); |
5662 | name_len++; /* trailing null */ | |
5663 | strncpy(pSMB->FileName, fileName, name_len); | |
5664 | } | |
5665 | ||
5666 | params = 6 + name_len; | |
5667 | ||
5668 | /* done calculating parms using name_len of file name, | |
5669 | now use name_len to calculate length of ea name | |
5670 | we are going to create in the inode xattrs */ | |
790fe579 | 5671 | if (ea_name == NULL) |
1da177e4 LT |
5672 | name_len = 0; |
5673 | else | |
50c2f753 | 5674 | name_len = strnlen(ea_name, 255); |
1da177e4 | 5675 | |
dae5dbdb | 5676 | count = sizeof(*parm_data) + ea_value_len + name_len; |
1da177e4 | 5677 | pSMB->MaxParameterCount = cpu_to_le16(2); |
582d21e5 SF |
5678 | /* BB find max SMB PDU from sess */ |
5679 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1da177e4 LT |
5680 | pSMB->MaxSetupCount = 0; |
5681 | pSMB->Reserved = 0; | |
5682 | pSMB->Flags = 0; | |
5683 | pSMB->Timeout = 0; | |
5684 | pSMB->Reserved2 = 0; | |
5685 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 5686 | InformationLevel) - 4; |
1da177e4 LT |
5687 | offset = param_offset + params; |
5688 | pSMB->InformationLevel = | |
5689 | cpu_to_le16(SMB_SET_FILE_EA); | |
5690 | ||
5691 | parm_data = | |
5692 | (struct fealist *) (((char *) &pSMB->hdr.Protocol) + | |
5693 | offset); | |
5694 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
5695 | pSMB->DataOffset = cpu_to_le16(offset); | |
5696 | pSMB->SetupCount = 1; | |
5697 | pSMB->Reserved3 = 0; | |
5698 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
5699 | byte_count = 3 /* pad */ + params + count; | |
5700 | pSMB->DataCount = cpu_to_le16(count); | |
5701 | parm_data->list_len = cpu_to_le32(count); | |
5702 | parm_data->list[0].EA_flags = 0; | |
5703 | /* we checked above that name len is less than 255 */ | |
53b3531b | 5704 | parm_data->list[0].name_len = (__u8)name_len; |
1da177e4 | 5705 | /* EA names are always ASCII */ |
790fe579 | 5706 | if (ea_name) |
50c2f753 | 5707 | strncpy(parm_data->list[0].name, ea_name, name_len); |
1da177e4 LT |
5708 | parm_data->list[0].name[name_len] = 0; |
5709 | parm_data->list[0].value_len = cpu_to_le16(ea_value_len); | |
5710 | /* caller ensures that ea_value_len is less than 64K but | |
5711 | we need to ensure that it fits within the smb */ | |
5712 | ||
50c2f753 SF |
5713 | /*BB add length check to see if it would fit in |
5714 | negotiated SMB buffer size BB */ | |
790fe579 SF |
5715 | /* if (ea_value_len > buffer_size - 512 (enough for header)) */ |
5716 | if (ea_value_len) | |
50c2f753 SF |
5717 | memcpy(parm_data->list[0].name+name_len+1, |
5718 | ea_value, ea_value_len); | |
1da177e4 LT |
5719 | |
5720 | pSMB->TotalDataCount = pSMB->DataCount; | |
5721 | pSMB->ParameterCount = cpu_to_le16(params); | |
5722 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
5723 | pSMB->Reserved4 = 0; | |
5724 | pSMB->hdr.smb_buf_length += byte_count; | |
5725 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
5726 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
5727 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
ad7a2926 | 5728 | if (rc) |
1da177e4 | 5729 | cFYI(1, ("SetPathInfo (EA) returned %d", rc)); |
1da177e4 LT |
5730 | |
5731 | cifs_buf_release(pSMB); | |
5732 | ||
5733 | if (rc == -EAGAIN) | |
5734 | goto SetEARetry; | |
5735 | ||
5736 | return rc; | |
5737 | } | |
5738 | ||
5739 | #endif |