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1da177e4 LT |
1 | /* |
2 | * fs/cifs/cifssmb.c | |
3 | * | |
2dd29d31 | 4 | * Copyright (C) International Business Machines Corp., 2002,2007 |
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 | |
85 | /* Mark as invalid, all open files on tree connections since they | |
86 | were closed when session to server was lost */ | |
790fe579 | 87 | static void mark_open_files_invalid(struct cifsTconInfo *pTcon) |
1da177e4 LT |
88 | { |
89 | struct cifsFileInfo *open_file = NULL; | |
790fe579 SF |
90 | struct list_head *tmp; |
91 | struct list_head *tmp1; | |
1da177e4 LT |
92 | |
93 | /* list all files open on tree connection and mark them invalid */ | |
94 | write_lock(&GlobalSMBSeslock); | |
95 | list_for_each_safe(tmp, tmp1, &pTcon->openFileList) { | |
790fe579 | 96 | open_file = list_entry(tmp, struct cifsFileInfo, tlist); |
26f57364 | 97 | if (open_file) |
1da177e4 | 98 | open_file->invalidHandle = TRUE; |
1da177e4 LT |
99 | } |
100 | write_unlock(&GlobalSMBSeslock); | |
09d1db5c SF |
101 | /* BB Add call to invalidate_inodes(sb) for all superblocks mounted |
102 | to this tcon */ | |
1da177e4 LT |
103 | } |
104 | ||
105 | /* If the return code is zero, this function must fill in request_buf pointer */ | |
106 | static int | |
107 | small_smb_init(int smb_command, int wct, struct cifsTconInfo *tcon, | |
108 | void **request_buf /* returned */) | |
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 */ |
790fe579 | 142 | if ((tcon->retry == FALSE) || |
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); | |
790fe579 | 158 | if (tcon->ses->status == CifsNeedReconnect) |
50c2f753 | 159 | rc = cifs_setup_session(0, tcon->ses, |
09d1db5c | 160 | nls_codepage); |
790fe579 | 161 | if (!rc && (tcon->tidStatus == CifsNeedReconnect)) { |
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); |
8af18971 SF |
166 | /* tell server which Unix caps we support */ |
167 | if (tcon->ses->capabilities & CAP_UNIX) | |
168 | reset_cifs_unix_caps(0 /* no xid */, | |
50c2f753 | 169 | tcon, |
8af18971 | 170 | NULL /* we do not know sb */, |
50c2f753 | 171 | NULL /* no vol info */); |
3e84469d SF |
172 | /* BB FIXME add code to check if wsize needs |
173 | update due to negotiated smb buffer size | |
174 | shrinking */ | |
790fe579 | 175 | if (rc == 0) |
1da177e4 LT |
176 | atomic_inc(&tconInfoReconnectCount); |
177 | ||
178 | cFYI(1, ("reconnect tcon rc = %d", rc)); | |
50c2f753 SF |
179 | /* Removed call to reopen open files here. |
180 | It is safer (and faster) to reopen files | |
09d1db5c | 181 | one at a time as needed in read and write */ |
1da177e4 | 182 | |
50c2f753 | 183 | /* Check if handle based operation so we |
09d1db5c SF |
184 | know whether we can continue or not without |
185 | returning to caller to reset file handle */ | |
50c2f753 | 186 | switch (smb_command) { |
1da177e4 LT |
187 | case SMB_COM_READ_ANDX: |
188 | case SMB_COM_WRITE_ANDX: | |
189 | case SMB_COM_CLOSE: | |
190 | case SMB_COM_FIND_CLOSE2: | |
191 | case SMB_COM_LOCKING_ANDX: { | |
192 | unload_nls(nls_codepage); | |
193 | return -EAGAIN; | |
194 | } | |
195 | } | |
196 | } else { | |
197 | up(&tcon->ses->sesSem); | |
198 | } | |
199 | unload_nls(nls_codepage); | |
200 | ||
201 | } else { | |
202 | return -EIO; | |
203 | } | |
204 | } | |
790fe579 | 205 | if (rc) |
1da177e4 LT |
206 | return rc; |
207 | ||
208 | *request_buf = cifs_small_buf_get(); | |
209 | if (*request_buf == NULL) { | |
210 | /* BB should we add a retry in here if not a writepage? */ | |
211 | return -ENOMEM; | |
212 | } | |
213 | ||
63135e08 | 214 | header_assemble((struct smb_hdr *) *request_buf, smb_command, |
c18c842b | 215 | tcon, wct); |
1da177e4 | 216 | |
790fe579 SF |
217 | if (tcon != NULL) |
218 | cifs_stats_inc(&tcon->num_smbs_sent); | |
a4544347 | 219 | |
1da177e4 | 220 | return rc; |
5815449d SF |
221 | } |
222 | ||
12b3b8ff | 223 | int |
50c2f753 | 224 | small_smb_init_no_tc(const int smb_command, const int wct, |
5815449d | 225 | struct cifsSesInfo *ses, void **request_buf) |
12b3b8ff SF |
226 | { |
227 | int rc; | |
50c2f753 | 228 | struct smb_hdr *buffer; |
12b3b8ff | 229 | |
5815449d | 230 | rc = small_smb_init(smb_command, wct, NULL, request_buf); |
790fe579 | 231 | if (rc) |
12b3b8ff SF |
232 | return rc; |
233 | ||
04fdabe1 | 234 | buffer = (struct smb_hdr *)*request_buf; |
12b3b8ff SF |
235 | buffer->Mid = GetNextMid(ses->server); |
236 | if (ses->capabilities & CAP_UNICODE) | |
237 | buffer->Flags2 |= SMBFLG2_UNICODE; | |
04fdabe1 | 238 | if (ses->capabilities & CAP_STATUS32) |
12b3b8ff SF |
239 | buffer->Flags2 |= SMBFLG2_ERR_STATUS; |
240 | ||
241 | /* uid, tid can stay at zero as set in header assemble */ | |
242 | ||
50c2f753 | 243 | /* BB add support for turning on the signing when |
12b3b8ff SF |
244 | this function is used after 1st of session setup requests */ |
245 | ||
246 | return rc; | |
247 | } | |
1da177e4 LT |
248 | |
249 | /* If the return code is zero, this function must fill in request_buf pointer */ | |
250 | static int | |
251 | smb_init(int smb_command, int wct, struct cifsTconInfo *tcon, | |
252 | void **request_buf /* returned */ , | |
253 | void **response_buf /* returned */ ) | |
254 | { | |
255 | int rc = 0; | |
256 | ||
257 | /* SMBs NegProt, SessSetup, uLogoff do not have tcon yet so | |
258 | check for tcp and smb session status done differently | |
259 | for those three - in the calling routine */ | |
790fe579 SF |
260 | if (tcon) { |
261 | if (tcon->tidStatus == CifsExiting) { | |
6ab16d24 SF |
262 | /* only tree disconnect, open, and write, |
263 | (and ulogoff which does not have tcon) | |
264 | are allowed as we start force umount */ | |
790fe579 | 265 | if ((smb_command != SMB_COM_WRITE_ANDX) && |
6ab16d24 SF |
266 | (smb_command != SMB_COM_OPEN_ANDX) && |
267 | (smb_command != SMB_COM_TREE_DISCONNECT)) { | |
790fe579 | 268 | cFYI(1, ("can not send cmd %d while umounting", |
6ab16d24 SF |
269 | smb_command)); |
270 | return -ENODEV; | |
271 | } | |
272 | } | |
273 | ||
790fe579 | 274 | if ((tcon->ses) && (tcon->ses->status != CifsExiting) && |
50c2f753 | 275 | (tcon->ses->server)) { |
1da177e4 | 276 | struct nls_table *nls_codepage; |
09d1db5c SF |
277 | /* Give Demultiplex thread up to 10 seconds to |
278 | reconnect, should be greater than cifs socket | |
279 | timeout which is 7 seconds */ | |
63135e08 SF |
280 | while (tcon->ses->server->tcpStatus == |
281 | CifsNeedReconnect) { | |
1da177e4 | 282 | wait_event_interruptible_timeout(tcon->ses->server->response_q, |
63135e08 SF |
283 | (tcon->ses->server->tcpStatus == |
284 | CifsGood), 10 * HZ); | |
790fe579 | 285 | if (tcon->ses->server->tcpStatus == |
09d1db5c | 286 | CifsNeedReconnect) { |
1da177e4 | 287 | /* on "soft" mounts we wait once */ |
790fe579 | 288 | if ((tcon->retry == FALSE) || |
1da177e4 | 289 | (tcon->ses->status == CifsExiting)) { |
50c2f753 SF |
290 | cFYI(1, ("gave up waiting on " |
291 | "reconnect in smb_init")); | |
1da177e4 | 292 | return -EHOSTDOWN; |
09d1db5c SF |
293 | } /* else "hard" mount - keep retrying |
294 | until process is killed or server | |
295 | comes on-line */ | |
1da177e4 LT |
296 | } else /* TCP session is reestablished now */ |
297 | break; | |
1da177e4 | 298 | } |
1da177e4 LT |
299 | nls_codepage = load_nls_default(); |
300 | /* need to prevent multiple threads trying to | |
301 | simultaneously reconnect the same SMB session */ | |
302 | down(&tcon->ses->sesSem); | |
790fe579 | 303 | if (tcon->ses->status == CifsNeedReconnect) |
50c2f753 | 304 | rc = cifs_setup_session(0, tcon->ses, |
09d1db5c | 305 | nls_codepage); |
790fe579 | 306 | if (!rc && (tcon->tidStatus == CifsNeedReconnect)) { |
1da177e4 | 307 | mark_open_files_invalid(tcon); |
09d1db5c SF |
308 | rc = CIFSTCon(0, tcon->ses, tcon->treeName, |
309 | tcon, nls_codepage); | |
1da177e4 | 310 | up(&tcon->ses->sesSem); |
8af18971 SF |
311 | /* tell server which Unix caps we support */ |
312 | if (tcon->ses->capabilities & CAP_UNIX) | |
313 | reset_cifs_unix_caps(0 /* no xid */, | |
50c2f753 | 314 | tcon, |
8af18971 SF |
315 | NULL /* do not know sb */, |
316 | NULL /* no vol info */); | |
3e84469d SF |
317 | /* BB FIXME add code to check if wsize needs |
318 | update due to negotiated smb buffer size | |
319 | shrinking */ | |
790fe579 | 320 | if (rc == 0) |
1da177e4 LT |
321 | atomic_inc(&tconInfoReconnectCount); |
322 | ||
323 | cFYI(1, ("reconnect tcon rc = %d", rc)); | |
50c2f753 SF |
324 | /* Removed call to reopen open files here. |
325 | It is safer (and faster) to reopen files | |
09d1db5c | 326 | one at a time as needed in read and write */ |
1da177e4 | 327 | |
50c2f753 | 328 | /* Check if handle based operation so we |
09d1db5c SF |
329 | know whether we can continue or not without |
330 | returning to caller to reset file handle */ | |
50c2f753 | 331 | switch (smb_command) { |
1da177e4 LT |
332 | case SMB_COM_READ_ANDX: |
333 | case SMB_COM_WRITE_ANDX: | |
334 | case SMB_COM_CLOSE: | |
335 | case SMB_COM_FIND_CLOSE2: | |
336 | case SMB_COM_LOCKING_ANDX: { | |
337 | unload_nls(nls_codepage); | |
338 | return -EAGAIN; | |
339 | } | |
340 | } | |
341 | } else { | |
342 | up(&tcon->ses->sesSem); | |
343 | } | |
344 | unload_nls(nls_codepage); | |
345 | ||
346 | } else { | |
347 | return -EIO; | |
348 | } | |
349 | } | |
790fe579 | 350 | if (rc) |
1da177e4 LT |
351 | return rc; |
352 | ||
353 | *request_buf = cifs_buf_get(); | |
354 | if (*request_buf == NULL) { | |
355 | /* BB should we add a retry in here if not a writepage? */ | |
356 | return -ENOMEM; | |
357 | } | |
358 | /* Although the original thought was we needed the response buf for */ | |
359 | /* potential retries of smb operations it turns out we can determine */ | |
360 | /* from the mid flags when the request buffer can be resent without */ | |
361 | /* having to use a second distinct buffer for the response */ | |
790fe579 | 362 | if (response_buf) |
50c2f753 | 363 | *response_buf = *request_buf; |
1da177e4 LT |
364 | |
365 | header_assemble((struct smb_hdr *) *request_buf, smb_command, tcon, | |
366 | wct /*wct */ ); | |
367 | ||
790fe579 SF |
368 | if (tcon != NULL) |
369 | cifs_stats_inc(&tcon->num_smbs_sent); | |
a4544347 | 370 | |
1da177e4 LT |
371 | return rc; |
372 | } | |
373 | ||
50c2f753 | 374 | static int validate_t2(struct smb_t2_rsp *pSMB) |
1da177e4 LT |
375 | { |
376 | int rc = -EINVAL; | |
377 | int total_size; | |
50c2f753 | 378 | char *pBCC; |
1da177e4 LT |
379 | |
380 | /* check for plausible wct, bcc and t2 data and parm sizes */ | |
381 | /* check for parm and data offset going beyond end of smb */ | |
790fe579 SF |
382 | if (pSMB->hdr.WordCount >= 10) { |
383 | if ((le16_to_cpu(pSMB->t2_rsp.ParameterOffset) <= 1024) && | |
1da177e4 LT |
384 | (le16_to_cpu(pSMB->t2_rsp.DataOffset) <= 1024)) { |
385 | /* check that bcc is at least as big as parms + data */ | |
386 | /* check that bcc is less than negotiated smb buffer */ | |
387 | total_size = le16_to_cpu(pSMB->t2_rsp.ParameterCount); | |
790fe579 | 388 | if (total_size < 512) { |
c18c842b | 389 | total_size += |
63135e08 | 390 | le16_to_cpu(pSMB->t2_rsp.DataCount); |
1da177e4 | 391 | /* BCC le converted in SendReceive */ |
50c2f753 | 392 | pBCC = (pSMB->hdr.WordCount * 2) + |
09d1db5c | 393 | sizeof(struct smb_hdr) + |
1da177e4 | 394 | (char *)pSMB; |
790fe579 | 395 | if ((total_size <= (*(u16 *)pBCC)) && |
50c2f753 | 396 | (total_size < |
1da177e4 LT |
397 | CIFSMaxBufSize+MAX_CIFS_HDR_SIZE)) { |
398 | return 0; | |
399 | } | |
1da177e4 LT |
400 | } |
401 | } | |
402 | } | |
50c2f753 | 403 | cifs_dump_mem("Invalid transact2 SMB: ", (char *)pSMB, |
1da177e4 LT |
404 | sizeof(struct smb_t2_rsp) + 16); |
405 | return rc; | |
406 | } | |
407 | int | |
408 | CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) | |
409 | { | |
410 | NEGOTIATE_REQ *pSMB; | |
411 | NEGOTIATE_RSP *pSMBr; | |
412 | int rc = 0; | |
413 | int bytes_returned; | |
3979877e | 414 | int i; |
50c2f753 | 415 | struct TCP_Server_Info *server; |
1da177e4 | 416 | u16 count; |
750d1151 | 417 | unsigned int secFlags; |
733f99ac | 418 | u16 dialect; |
1da177e4 | 419 | |
790fe579 | 420 | if (ses->server) |
1da177e4 LT |
421 | server = ses->server; |
422 | else { | |
423 | rc = -EIO; | |
424 | return rc; | |
425 | } | |
426 | rc = smb_init(SMB_COM_NEGOTIATE, 0, NULL /* no tcon yet */ , | |
427 | (void **) &pSMB, (void **) &pSMBr); | |
428 | if (rc) | |
429 | return rc; | |
750d1151 SF |
430 | |
431 | /* if any of auth flags (ie not sign or seal) are overriden use them */ | |
790fe579 | 432 | if (ses->overrideSecFlg & (~(CIFSSEC_MUST_SIGN | CIFSSEC_MUST_SEAL))) |
762e5ab7 | 433 | secFlags = ses->overrideSecFlg; /* BB FIXME fix sign flags? */ |
750d1151 SF |
434 | else /* if override flags set only sign/seal OR them with global auth */ |
435 | secFlags = extended_security | ses->overrideSecFlg; | |
436 | ||
762e5ab7 | 437 | cFYI(1, ("secFlags 0x%x", secFlags)); |
f40c5628 | 438 | |
1982c344 | 439 | pSMB->hdr.Mid = GetNextMid(server); |
100c1ddc | 440 | pSMB->hdr.Flags2 |= (SMBFLG2_UNICODE | SMBFLG2_ERR_STATUS); |
a013689d | 441 | |
100c1ddc | 442 | if ((secFlags & CIFSSEC_MUST_KRB5) == CIFSSEC_MUST_KRB5) |
254e55ed | 443 | pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC; |
a013689d SF |
444 | else if ((secFlags & CIFSSEC_AUTH_MASK) == CIFSSEC_MAY_KRB5) { |
445 | cFYI(1, ("Kerberos only mechanism, enable extended security")); | |
446 | pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC; | |
447 | } | |
50c2f753 | 448 | |
3979877e | 449 | count = 0; |
50c2f753 | 450 | for (i = 0; i < CIFS_NUM_PROT; i++) { |
3979877e SF |
451 | strncpy(pSMB->DialectsArray+count, protocols[i].name, 16); |
452 | count += strlen(protocols[i].name) + 1; | |
453 | /* null at end of source and target buffers anyway */ | |
454 | } | |
1da177e4 LT |
455 | pSMB->hdr.smb_buf_length += count; |
456 | pSMB->ByteCount = cpu_to_le16(count); | |
457 | ||
458 | rc = SendReceive(xid, ses, (struct smb_hdr *) pSMB, | |
459 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
50c2f753 | 460 | if (rc != 0) |
254e55ed SF |
461 | goto neg_err_exit; |
462 | ||
733f99ac | 463 | dialect = le16_to_cpu(pSMBr->DialectIndex); |
790fe579 | 464 | cFYI(1, ("Dialect: %d", dialect)); |
254e55ed | 465 | /* Check wct = 1 error case */ |
790fe579 | 466 | if ((pSMBr->hdr.WordCount < 13) || (dialect == BAD_PROT)) { |
254e55ed | 467 | /* core returns wct = 1, but we do not ask for core - otherwise |
50c2f753 | 468 | small wct just comes when dialect index is -1 indicating we |
254e55ed SF |
469 | could not negotiate a common dialect */ |
470 | rc = -EOPNOTSUPP; | |
471 | goto neg_err_exit; | |
50c2f753 | 472 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
790fe579 | 473 | } else if ((pSMBr->hdr.WordCount == 13) |
733f99ac AV |
474 | && ((dialect == LANMAN_PROT) |
475 | || (dialect == LANMAN2_PROT))) { | |
b815f1e5 | 476 | __s16 tmp; |
50c2f753 | 477 | struct lanman_neg_rsp *rsp = (struct lanman_neg_rsp *)pSMBr; |
254e55ed | 478 | |
790fe579 | 479 | if ((secFlags & CIFSSEC_MAY_LANMAN) || |
750d1151 | 480 | (secFlags & CIFSSEC_MAY_PLNTXT)) |
254e55ed SF |
481 | server->secType = LANMAN; |
482 | else { | |
483 | cERROR(1, ("mount failed weak security disabled" | |
484 | " in /proc/fs/cifs/SecurityFlags")); | |
3979877e SF |
485 | rc = -EOPNOTSUPP; |
486 | goto neg_err_exit; | |
50c2f753 | 487 | } |
254e55ed SF |
488 | server->secMode = (__u8)le16_to_cpu(rsp->SecurityMode); |
489 | server->maxReq = le16_to_cpu(rsp->MaxMpxCount); | |
490 | server->maxBuf = min((__u32)le16_to_cpu(rsp->MaxBufSize), | |
3979877e | 491 | (__u32)CIFSMaxBufSize + MAX_CIFS_HDR_SIZE); |
254e55ed SF |
492 | GETU32(server->sessid) = le32_to_cpu(rsp->SessionKey); |
493 | /* even though we do not use raw we might as well set this | |
494 | accurately, in case we ever find a need for it */ | |
790fe579 | 495 | if ((le16_to_cpu(rsp->RawMode) & RAW_ENABLE) == RAW_ENABLE) { |
254e55ed SF |
496 | server->maxRw = 0xFF00; |
497 | server->capabilities = CAP_MPX_MODE | CAP_RAW_MODE; | |
498 | } else { | |
499 | server->maxRw = 0;/* we do not need to use raw anyway */ | |
500 | server->capabilities = CAP_MPX_MODE; | |
501 | } | |
b815f1e5 | 502 | tmp = (__s16)le16_to_cpu(rsp->ServerTimeZone); |
1a70d652 | 503 | if (tmp == -1) { |
25ee4a98 SF |
504 | /* OS/2 often does not set timezone therefore |
505 | * we must use server time to calc time zone. | |
b815f1e5 SF |
506 | * Could deviate slightly from the right zone. |
507 | * Smallest defined timezone difference is 15 minutes | |
508 | * (i.e. Nepal). Rounding up/down is done to match | |
509 | * this requirement. | |
25ee4a98 | 510 | */ |
b815f1e5 | 511 | int val, seconds, remain, result; |
25ee4a98 SF |
512 | struct timespec ts, utc; |
513 | utc = CURRENT_TIME; | |
514 | ts = cnvrtDosUnixTm(le16_to_cpu(rsp->SrvTime.Date), | |
515 | le16_to_cpu(rsp->SrvTime.Time)); | |
50c2f753 SF |
516 | cFYI(1, ("SrvTime %d sec since 1970 (utc: %d) diff: %d", |
517 | (int)ts.tv_sec, (int)utc.tv_sec, | |
25ee4a98 | 518 | (int)(utc.tv_sec - ts.tv_sec))); |
b815f1e5 | 519 | val = (int)(utc.tv_sec - ts.tv_sec); |
8594c15a | 520 | seconds = abs(val); |
947a5067 | 521 | result = (seconds / MIN_TZ_ADJ) * MIN_TZ_ADJ; |
b815f1e5 | 522 | remain = seconds % MIN_TZ_ADJ; |
790fe579 | 523 | if (remain >= (MIN_TZ_ADJ / 2)) |
b815f1e5 | 524 | result += MIN_TZ_ADJ; |
790fe579 | 525 | if (val < 0) |
b815f1e5 SF |
526 | result = - result; |
527 | server->timeAdj = result; | |
25ee4a98 | 528 | } else { |
b815f1e5 SF |
529 | server->timeAdj = (int)tmp; |
530 | server->timeAdj *= 60; /* also in seconds */ | |
25ee4a98 | 531 | } |
790fe579 | 532 | cFYI(1, ("server->timeAdj: %d seconds", server->timeAdj)); |
25ee4a98 | 533 | |
3979877e | 534 | |
254e55ed | 535 | /* BB get server time for time conversions and add |
50c2f753 | 536 | code to use it and timezone since this is not UTC */ |
3979877e | 537 | |
50c2f753 | 538 | if (rsp->EncryptionKeyLength == |
25ee4a98 | 539 | cpu_to_le16(CIFS_CRYPTO_KEY_SIZE)) { |
254e55ed SF |
540 | memcpy(server->cryptKey, rsp->EncryptionKey, |
541 | CIFS_CRYPTO_KEY_SIZE); | |
542 | } else if (server->secMode & SECMODE_PW_ENCRYPT) { | |
543 | rc = -EIO; /* need cryptkey unless plain text */ | |
544 | goto neg_err_exit; | |
545 | } | |
3979877e | 546 | |
790fe579 | 547 | cFYI(1, ("LANMAN negotiated")); |
254e55ed SF |
548 | /* we will not end up setting signing flags - as no signing |
549 | was in LANMAN and server did not return the flags on */ | |
550 | goto signing_check; | |
7c7b25bc | 551 | #else /* weak security disabled */ |
790fe579 | 552 | } else if (pSMBr->hdr.WordCount == 13) { |
50c2f753 | 553 | cERROR(1, ("mount failed, cifs module not built " |
254e55ed | 554 | "with CIFS_WEAK_PW_HASH support")); |
7c7b25bc SF |
555 | rc = -EOPNOTSUPP; |
556 | #endif /* WEAK_PW_HASH */ | |
254e55ed | 557 | goto neg_err_exit; |
790fe579 | 558 | } else if (pSMBr->hdr.WordCount != 17) { |
254e55ed SF |
559 | /* unknown wct */ |
560 | rc = -EOPNOTSUPP; | |
561 | goto neg_err_exit; | |
562 | } | |
563 | /* else wct == 17 NTLM */ | |
564 | server->secMode = pSMBr->SecurityMode; | |
790fe579 SF |
565 | if ((server->secMode & SECMODE_USER) == 0) |
566 | cFYI(1, ("share mode security")); | |
bdc4bf6e | 567 | |
790fe579 | 568 | if ((server->secMode & SECMODE_PW_ENCRYPT) == 0) |
bdc4bf6e | 569 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
750d1151 | 570 | if ((secFlags & CIFSSEC_MAY_PLNTXT) == 0) |
bdc4bf6e | 571 | #endif /* CIFS_WEAK_PW_HASH */ |
50c2f753 | 572 | cERROR(1, ("Server requests plain text password" |
254e55ed | 573 | " but client support disabled")); |
9312f675 | 574 | |
790fe579 | 575 | if ((secFlags & CIFSSEC_MUST_NTLMV2) == CIFSSEC_MUST_NTLMV2) |
254e55ed | 576 | server->secType = NTLMv2; |
790fe579 | 577 | else if (secFlags & CIFSSEC_MAY_NTLM) |
254e55ed | 578 | server->secType = NTLM; |
790fe579 | 579 | else if (secFlags & CIFSSEC_MAY_NTLMV2) |
f40c5628 | 580 | server->secType = NTLMv2; |
a013689d SF |
581 | else if (secFlags & CIFSSEC_MAY_KRB5) |
582 | server->secType = Kerberos; | |
583 | else if (secFlags & CIFSSEC_MAY_LANMAN) | |
584 | server->secType = LANMAN; | |
585 | /* #ifdef CONFIG_CIFS_EXPERIMENTAL | |
586 | else if (secFlags & CIFSSEC_MAY_PLNTXT) | |
587 | server->secType = ?? | |
588 | #endif */ | |
589 | else { | |
590 | rc = -EOPNOTSUPP; | |
591 | cERROR(1, ("Invalid security type")); | |
592 | goto neg_err_exit; | |
593 | } | |
594 | /* else ... any others ...? */ | |
254e55ed SF |
595 | |
596 | /* one byte, so no need to convert this or EncryptionKeyLen from | |
597 | little endian */ | |
598 | server->maxReq = le16_to_cpu(pSMBr->MaxMpxCount); | |
599 | /* probably no need to store and check maxvcs */ | |
600 | server->maxBuf = min(le32_to_cpu(pSMBr->MaxBufferSize), | |
1da177e4 | 601 | (__u32) CIFSMaxBufSize + MAX_CIFS_HDR_SIZE); |
254e55ed SF |
602 | server->maxRw = le32_to_cpu(pSMBr->MaxRawSize); |
603 | cFYI(0, ("Max buf = %d", ses->server->maxBuf)); | |
604 | GETU32(ses->server->sessid) = le32_to_cpu(pSMBr->SessionKey); | |
605 | server->capabilities = le32_to_cpu(pSMBr->Capabilities); | |
b815f1e5 SF |
606 | server->timeAdj = (int)(__s16)le16_to_cpu(pSMBr->ServerTimeZone); |
607 | server->timeAdj *= 60; | |
254e55ed SF |
608 | if (pSMBr->EncryptionKeyLength == CIFS_CRYPTO_KEY_SIZE) { |
609 | memcpy(server->cryptKey, pSMBr->u.EncryptionKey, | |
610 | CIFS_CRYPTO_KEY_SIZE); | |
611 | } else if ((pSMBr->hdr.Flags2 & SMBFLG2_EXT_SEC) | |
612 | && (pSMBr->EncryptionKeyLength == 0)) { | |
613 | /* decode security blob */ | |
614 | } else if (server->secMode & SECMODE_PW_ENCRYPT) { | |
615 | rc = -EIO; /* no crypt key only if plain text pwd */ | |
616 | goto neg_err_exit; | |
617 | } | |
1da177e4 | 618 | |
254e55ed SF |
619 | /* BB might be helpful to save off the domain of server here */ |
620 | ||
50c2f753 | 621 | if ((pSMBr->hdr.Flags2 & SMBFLG2_EXT_SEC) && |
254e55ed SF |
622 | (server->capabilities & CAP_EXTENDED_SECURITY)) { |
623 | count = pSMBr->ByteCount; | |
e187e44e | 624 | if (count < 16) { |
254e55ed | 625 | rc = -EIO; |
e187e44e JL |
626 | goto neg_err_exit; |
627 | } | |
628 | ||
629 | if (server->socketUseCount.counter > 1) { | |
630 | if (memcmp(server->server_GUID, | |
631 | pSMBr->u.extended_response. | |
632 | GUID, 16) != 0) { | |
633 | cFYI(1, ("server UID changed")); | |
254e55ed | 634 | memcpy(server->server_GUID, |
e187e44e JL |
635 | pSMBr->u.extended_response.GUID, |
636 | 16); | |
637 | } | |
638 | } else | |
639 | memcpy(server->server_GUID, | |
640 | pSMBr->u.extended_response.GUID, 16); | |
641 | ||
642 | if (count == 16) { | |
643 | server->secType = RawNTLMSSP; | |
254e55ed SF |
644 | } else { |
645 | rc = decode_negTokenInit(pSMBr->u.extended_response. | |
646 | SecurityBlob, | |
647 | count - 16, | |
648 | &server->secType); | |
790fe579 | 649 | if (rc == 1) { |
e545937a | 650 | rc = 0; |
254e55ed SF |
651 | } else { |
652 | rc = -EINVAL; | |
1da177e4 | 653 | } |
1da177e4 | 654 | } |
254e55ed SF |
655 | } else |
656 | server->capabilities &= ~CAP_EXTENDED_SECURITY; | |
657 | ||
6344a423 | 658 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
254e55ed | 659 | signing_check: |
6344a423 | 660 | #endif |
762e5ab7 SF |
661 | if ((secFlags & CIFSSEC_MAY_SIGN) == 0) { |
662 | /* MUST_SIGN already includes the MAY_SIGN FLAG | |
663 | so if this is zero it means that signing is disabled */ | |
664 | cFYI(1, ("Signing disabled")); | |
abb63d6c | 665 | if (server->secMode & SECMODE_SIGN_REQUIRED) { |
762e5ab7 | 666 | cERROR(1, ("Server requires " |
7111d214 JL |
667 | "packet signing to be enabled in " |
668 | "/proc/fs/cifs/SecurityFlags.")); | |
abb63d6c SF |
669 | rc = -EOPNOTSUPP; |
670 | } | |
50c2f753 | 671 | server->secMode &= |
254e55ed | 672 | ~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED); |
762e5ab7 SF |
673 | } else if ((secFlags & CIFSSEC_MUST_SIGN) == CIFSSEC_MUST_SIGN) { |
674 | /* signing required */ | |
38c10a1d | 675 | cFYI(1, ("Must sign - secFlags 0x%x", secFlags)); |
762e5ab7 SF |
676 | if ((server->secMode & |
677 | (SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED)) == 0) { | |
678 | cERROR(1, | |
679 | ("signing required but server lacks support")); | |
38c10a1d | 680 | rc = -EOPNOTSUPP; |
762e5ab7 SF |
681 | } else |
682 | server->secMode |= SECMODE_SIGN_REQUIRED; | |
683 | } else { | |
684 | /* signing optional ie CIFSSEC_MAY_SIGN */ | |
790fe579 | 685 | if ((server->secMode & SECMODE_SIGN_REQUIRED) == 0) |
50c2f753 | 686 | server->secMode &= |
254e55ed | 687 | ~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED); |
1da177e4 | 688 | } |
50c2f753 SF |
689 | |
690 | neg_err_exit: | |
4a6d87f1 | 691 | cifs_buf_release(pSMB); |
254e55ed | 692 | |
790fe579 | 693 | cFYI(1, ("negprot rc %d", rc)); |
1da177e4 LT |
694 | return rc; |
695 | } | |
696 | ||
697 | int | |
698 | CIFSSMBTDis(const int xid, struct cifsTconInfo *tcon) | |
699 | { | |
700 | struct smb_hdr *smb_buffer; | |
1da177e4 | 701 | int rc = 0; |
1da177e4 LT |
702 | |
703 | cFYI(1, ("In tree disconnect")); | |
704 | /* | |
705 | * If last user of the connection and | |
706 | * connection alive - disconnect it | |
707 | * If this is the last connection on the server session disconnect it | |
50c2f753 | 708 | * (and inside session disconnect we should check if tcp socket needs |
1da177e4 LT |
709 | * to be freed and kernel thread woken up). |
710 | */ | |
711 | if (tcon) | |
712 | down(&tcon->tconSem); | |
713 | else | |
714 | return -EIO; | |
715 | ||
716 | atomic_dec(&tcon->useCount); | |
717 | if (atomic_read(&tcon->useCount) > 0) { | |
718 | up(&tcon->tconSem); | |
719 | return -EBUSY; | |
720 | } | |
721 | ||
50c2f753 | 722 | /* No need to return error on this operation if tid invalidated and |
1da177e4 | 723 | closed on server already e.g. due to tcp session crashing */ |
790fe579 | 724 | if (tcon->tidStatus == CifsNeedReconnect) { |
1da177e4 | 725 | up(&tcon->tconSem); |
50c2f753 | 726 | return 0; |
1da177e4 LT |
727 | } |
728 | ||
790fe579 | 729 | if ((tcon->ses == NULL) || (tcon->ses->server == NULL)) { |
1da177e4 LT |
730 | up(&tcon->tconSem); |
731 | return -EIO; | |
732 | } | |
50c2f753 | 733 | rc = small_smb_init(SMB_COM_TREE_DISCONNECT, 0, tcon, |
09d1db5c | 734 | (void **)&smb_buffer); |
1da177e4 LT |
735 | if (rc) { |
736 | up(&tcon->tconSem); | |
737 | return rc; | |
cd63499c | 738 | } |
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 | |
1da177e4 LT |
744 | up(&tcon->tconSem); |
745 | ||
50c2f753 | 746 | /* No need to return error on this operation if tid invalidated and |
1da177e4 LT |
747 | closed on server already e.g. due to tcp session crashing */ |
748 | if (rc == -EAGAIN) | |
749 | rc = 0; | |
750 | ||
751 | return rc; | |
752 | } | |
753 | ||
754 | int | |
755 | CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses) | |
756 | { | |
1da177e4 LT |
757 | LOGOFF_ANDX_REQ *pSMB; |
758 | int rc = 0; | |
1da177e4 LT |
759 | |
760 | cFYI(1, ("In SMBLogoff for session disconnect")); | |
761 | if (ses) | |
762 | down(&ses->sesSem); | |
763 | else | |
764 | return -EIO; | |
765 | ||
766 | atomic_dec(&ses->inUse); | |
767 | if (atomic_read(&ses->inUse) > 0) { | |
768 | up(&ses->sesSem); | |
769 | return -EBUSY; | |
770 | } | |
771 | rc = small_smb_init(SMB_COM_LOGOFF_ANDX, 2, NULL, (void **)&pSMB); | |
772 | if (rc) { | |
773 | up(&ses->sesSem); | |
774 | return rc; | |
775 | } | |
776 | ||
790fe579 | 777 | if (ses->server) { |
1982c344 SF |
778 | pSMB->hdr.Mid = GetNextMid(ses->server); |
779 | ||
790fe579 | 780 | if (ses->server->secMode & |
1da177e4 LT |
781 | (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) |
782 | pSMB->hdr.Flags2 |= SMBFLG2_SECURITY_SIGNATURE; | |
783 | } | |
784 | ||
785 | pSMB->hdr.Uid = ses->Suid; | |
786 | ||
787 | pSMB->AndXCommand = 0xFF; | |
133672ef | 788 | rc = SendReceiveNoRsp(xid, ses, (struct smb_hdr *) pSMB, 0); |
1da177e4 LT |
789 | if (ses->server) { |
790 | atomic_dec(&ses->server->socketUseCount); | |
791 | if (atomic_read(&ses->server->socketUseCount) == 0) { | |
792 | spin_lock(&GlobalMid_Lock); | |
793 | ses->server->tcpStatus = CifsExiting; | |
794 | spin_unlock(&GlobalMid_Lock); | |
795 | rc = -ESHUTDOWN; | |
796 | } | |
797 | } | |
a59c6586 | 798 | up(&ses->sesSem); |
1da177e4 LT |
799 | |
800 | /* if session dead then we do not need to do ulogoff, | |
50c2f753 | 801 | since server closed smb session, no sense reporting |
1da177e4 LT |
802 | error */ |
803 | if (rc == -EAGAIN) | |
804 | rc = 0; | |
805 | return rc; | |
806 | } | |
807 | ||
2d785a50 SF |
808 | int |
809 | CIFSPOSIXDelFile(const int xid, struct cifsTconInfo *tcon, const char *fileName, | |
810 | __u16 type, const struct nls_table *nls_codepage, int remap) | |
811 | { | |
812 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
813 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
814 | struct unlink_psx_rq *pRqD; | |
815 | int name_len; | |
816 | int rc = 0; | |
817 | int bytes_returned = 0; | |
818 | __u16 params, param_offset, offset, byte_count; | |
819 | ||
820 | cFYI(1, ("In POSIX delete")); | |
821 | PsxDelete: | |
822 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
823 | (void **) &pSMBr); | |
824 | if (rc) | |
825 | return rc; | |
826 | ||
827 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
828 | name_len = | |
829 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, | |
830 | PATH_MAX, nls_codepage, remap); | |
831 | name_len++; /* trailing null */ | |
832 | name_len *= 2; | |
833 | } else { /* BB add path length overrun check */ | |
834 | name_len = strnlen(fileName, PATH_MAX); | |
835 | name_len++; /* trailing null */ | |
836 | strncpy(pSMB->FileName, fileName, name_len); | |
837 | } | |
838 | ||
839 | params = 6 + name_len; | |
840 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
841 | pSMB->MaxDataCount = 0; /* BB double check this with jra */ | |
842 | pSMB->MaxSetupCount = 0; | |
843 | pSMB->Reserved = 0; | |
844 | pSMB->Flags = 0; | |
845 | pSMB->Timeout = 0; | |
846 | pSMB->Reserved2 = 0; | |
847 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
848 | InformationLevel) - 4; | |
849 | offset = param_offset + params; | |
850 | ||
851 | /* Setup pointer to Request Data (inode type) */ | |
852 | pRqD = (struct unlink_psx_rq *)(((char *)&pSMB->hdr.Protocol) + offset); | |
853 | pRqD->type = cpu_to_le16(type); | |
854 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
855 | pSMB->DataOffset = cpu_to_le16(offset); | |
856 | pSMB->SetupCount = 1; | |
857 | pSMB->Reserved3 = 0; | |
858 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
859 | byte_count = 3 /* pad */ + params + sizeof(struct unlink_psx_rq); | |
860 | ||
861 | pSMB->DataCount = cpu_to_le16(sizeof(struct unlink_psx_rq)); | |
862 | pSMB->TotalDataCount = cpu_to_le16(sizeof(struct unlink_psx_rq)); | |
863 | pSMB->ParameterCount = cpu_to_le16(params); | |
864 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
865 | pSMB->InformationLevel = cpu_to_le16(SMB_POSIX_UNLINK); | |
866 | pSMB->Reserved4 = 0; | |
867 | pSMB->hdr.smb_buf_length += byte_count; | |
868 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
869 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
870 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
871 | if (rc) { | |
872 | cFYI(1, ("Posix delete returned %d", rc)); | |
873 | } | |
874 | cifs_buf_release(pSMB); | |
875 | ||
876 | cifs_stats_inc(&tcon->num_deletes); | |
877 | ||
878 | if (rc == -EAGAIN) | |
879 | goto PsxDelete; | |
880 | ||
881 | return rc; | |
882 | } | |
883 | ||
1da177e4 | 884 | int |
737b758c SF |
885 | CIFSSMBDelFile(const int xid, struct cifsTconInfo *tcon, const char *fileName, |
886 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
887 | { |
888 | DELETE_FILE_REQ *pSMB = NULL; | |
889 | DELETE_FILE_RSP *pSMBr = NULL; | |
890 | int rc = 0; | |
891 | int bytes_returned; | |
892 | int name_len; | |
893 | ||
894 | DelFileRetry: | |
895 | rc = smb_init(SMB_COM_DELETE, 1, tcon, (void **) &pSMB, | |
896 | (void **) &pSMBr); | |
897 | if (rc) | |
898 | return rc; | |
899 | ||
900 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
901 | name_len = | |
50c2f753 | 902 | cifsConvertToUCS((__le16 *) pSMB->fileName, fileName, |
737b758c | 903 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
904 | name_len++; /* trailing null */ |
905 | name_len *= 2; | |
09d1db5c | 906 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
907 | name_len = strnlen(fileName, PATH_MAX); |
908 | name_len++; /* trailing null */ | |
909 | strncpy(pSMB->fileName, fileName, name_len); | |
910 | } | |
911 | pSMB->SearchAttributes = | |
912 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM); | |
913 | pSMB->BufferFormat = 0x04; | |
914 | pSMB->hdr.smb_buf_length += name_len + 1; | |
915 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
916 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
917 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 918 | cifs_stats_inc(&tcon->num_deletes); |
1da177e4 LT |
919 | if (rc) { |
920 | cFYI(1, ("Error in RMFile = %d", rc)); | |
50c2f753 | 921 | } |
1da177e4 LT |
922 | |
923 | cifs_buf_release(pSMB); | |
924 | if (rc == -EAGAIN) | |
925 | goto DelFileRetry; | |
926 | ||
927 | return rc; | |
928 | } | |
929 | ||
930 | int | |
50c2f753 | 931 | CIFSSMBRmDir(const int xid, struct cifsTconInfo *tcon, const char *dirName, |
737b758c | 932 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
933 | { |
934 | DELETE_DIRECTORY_REQ *pSMB = NULL; | |
935 | DELETE_DIRECTORY_RSP *pSMBr = NULL; | |
936 | int rc = 0; | |
937 | int bytes_returned; | |
938 | int name_len; | |
939 | ||
940 | cFYI(1, ("In CIFSSMBRmDir")); | |
941 | RmDirRetry: | |
942 | rc = smb_init(SMB_COM_DELETE_DIRECTORY, 0, tcon, (void **) &pSMB, | |
943 | (void **) &pSMBr); | |
944 | if (rc) | |
945 | return rc; | |
946 | ||
947 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
737b758c SF |
948 | name_len = cifsConvertToUCS((__le16 *) pSMB->DirName, dirName, |
949 | PATH_MAX, nls_codepage, remap); | |
1da177e4 LT |
950 | name_len++; /* trailing null */ |
951 | name_len *= 2; | |
09d1db5c | 952 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
953 | name_len = strnlen(dirName, PATH_MAX); |
954 | name_len++; /* trailing null */ | |
955 | strncpy(pSMB->DirName, dirName, name_len); | |
956 | } | |
957 | ||
958 | pSMB->BufferFormat = 0x04; | |
959 | pSMB->hdr.smb_buf_length += name_len + 1; | |
960 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
961 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
962 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 963 | cifs_stats_inc(&tcon->num_rmdirs); |
1da177e4 LT |
964 | if (rc) { |
965 | cFYI(1, ("Error in RMDir = %d", rc)); | |
966 | } | |
1da177e4 LT |
967 | |
968 | cifs_buf_release(pSMB); | |
969 | if (rc == -EAGAIN) | |
970 | goto RmDirRetry; | |
971 | return rc; | |
972 | } | |
973 | ||
974 | int | |
975 | CIFSSMBMkDir(const int xid, struct cifsTconInfo *tcon, | |
737b758c | 976 | const char *name, const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
977 | { |
978 | int rc = 0; | |
979 | CREATE_DIRECTORY_REQ *pSMB = NULL; | |
980 | CREATE_DIRECTORY_RSP *pSMBr = NULL; | |
981 | int bytes_returned; | |
982 | int name_len; | |
983 | ||
984 | cFYI(1, ("In CIFSSMBMkDir")); | |
985 | MkDirRetry: | |
986 | rc = smb_init(SMB_COM_CREATE_DIRECTORY, 0, tcon, (void **) &pSMB, | |
987 | (void **) &pSMBr); | |
988 | if (rc) | |
989 | return rc; | |
990 | ||
991 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
50c2f753 | 992 | name_len = cifsConvertToUCS((__le16 *) pSMB->DirName, name, |
737b758c | 993 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
994 | name_len++; /* trailing null */ |
995 | name_len *= 2; | |
09d1db5c | 996 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
997 | name_len = strnlen(name, PATH_MAX); |
998 | name_len++; /* trailing null */ | |
999 | strncpy(pSMB->DirName, name, name_len); | |
1000 | } | |
1001 | ||
1002 | pSMB->BufferFormat = 0x04; | |
1003 | pSMB->hdr.smb_buf_length += name_len + 1; | |
1004 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
1005 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1006 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 1007 | cifs_stats_inc(&tcon->num_mkdirs); |
1da177e4 LT |
1008 | if (rc) { |
1009 | cFYI(1, ("Error in Mkdir = %d", rc)); | |
1010 | } | |
a5a2b489 | 1011 | |
1da177e4 LT |
1012 | cifs_buf_release(pSMB); |
1013 | if (rc == -EAGAIN) | |
1014 | goto MkDirRetry; | |
1015 | return rc; | |
1016 | } | |
1017 | ||
2dd29d31 SF |
1018 | int |
1019 | CIFSPOSIXCreate(const int xid, struct cifsTconInfo *tcon, __u32 posix_flags, | |
1020 | __u64 mode, __u16 * netfid, FILE_UNIX_BASIC_INFO *pRetData, | |
50c2f753 | 1021 | __u32 *pOplock, const char *name, |
2dd29d31 SF |
1022 | const struct nls_table *nls_codepage, int remap) |
1023 | { | |
1024 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
1025 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
1026 | int name_len; | |
1027 | int rc = 0; | |
1028 | int bytes_returned = 0; | |
2dd29d31 SF |
1029 | __u16 params, param_offset, offset, byte_count, count; |
1030 | OPEN_PSX_REQ * pdata; | |
1031 | OPEN_PSX_RSP * psx_rsp; | |
1032 | ||
1033 | cFYI(1, ("In POSIX Create")); | |
1034 | PsxCreat: | |
1035 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
1036 | (void **) &pSMBr); | |
1037 | if (rc) | |
1038 | return rc; | |
1039 | ||
1040 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1041 | name_len = | |
1042 | cifsConvertToUCS((__le16 *) pSMB->FileName, name, | |
1043 | PATH_MAX, nls_codepage, remap); | |
1044 | name_len++; /* trailing null */ | |
1045 | name_len *= 2; | |
1046 | } else { /* BB improve the check for buffer overruns BB */ | |
1047 | name_len = strnlen(name, PATH_MAX); | |
1048 | name_len++; /* trailing null */ | |
1049 | strncpy(pSMB->FileName, name, name_len); | |
1050 | } | |
1051 | ||
1052 | params = 6 + name_len; | |
1053 | count = sizeof(OPEN_PSX_REQ); | |
1054 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
1055 | pSMB->MaxDataCount = cpu_to_le16(1000); /* large enough */ | |
1056 | pSMB->MaxSetupCount = 0; | |
1057 | pSMB->Reserved = 0; | |
1058 | pSMB->Flags = 0; | |
1059 | pSMB->Timeout = 0; | |
1060 | pSMB->Reserved2 = 0; | |
1061 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 1062 | InformationLevel) - 4; |
2dd29d31 | 1063 | offset = param_offset + params; |
2dd29d31 | 1064 | pdata = (OPEN_PSX_REQ *)(((char *)&pSMB->hdr.Protocol) + offset); |
8f2376ad | 1065 | pdata->Level = cpu_to_le16(SMB_QUERY_FILE_UNIX_BASIC); |
2dd29d31 | 1066 | pdata->Permissions = cpu_to_le64(mode); |
50c2f753 | 1067 | pdata->PosixOpenFlags = cpu_to_le32(posix_flags); |
2dd29d31 SF |
1068 | pdata->OpenFlags = cpu_to_le32(*pOplock); |
1069 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
1070 | pSMB->DataOffset = cpu_to_le16(offset); | |
1071 | pSMB->SetupCount = 1; | |
1072 | pSMB->Reserved3 = 0; | |
1073 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
1074 | byte_count = 3 /* pad */ + params + count; | |
1075 | ||
1076 | pSMB->DataCount = cpu_to_le16(count); | |
1077 | pSMB->ParameterCount = cpu_to_le16(params); | |
1078 | pSMB->TotalDataCount = pSMB->DataCount; | |
1079 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
1080 | pSMB->InformationLevel = cpu_to_le16(SMB_POSIX_OPEN); | |
1081 | pSMB->Reserved4 = 0; | |
50c2f753 | 1082 | pSMB->hdr.smb_buf_length += byte_count; |
2dd29d31 SF |
1083 | pSMB->ByteCount = cpu_to_le16(byte_count); |
1084 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1085 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
1086 | if (rc) { | |
1087 | cFYI(1, ("Posix create returned %d", rc)); | |
1088 | goto psx_create_err; | |
1089 | } | |
1090 | ||
790fe579 | 1091 | cFYI(1, ("copying inode info")); |
2dd29d31 SF |
1092 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
1093 | ||
1094 | if (rc || (pSMBr->ByteCount < sizeof(OPEN_PSX_RSP))) { | |
1095 | rc = -EIO; /* bad smb */ | |
1096 | goto psx_create_err; | |
1097 | } | |
1098 | ||
1099 | /* copy return information to pRetData */ | |
50c2f753 | 1100 | psx_rsp = (OPEN_PSX_RSP *)((char *) &pSMBr->hdr.Protocol |
2dd29d31 | 1101 | + le16_to_cpu(pSMBr->t2.DataOffset)); |
50c2f753 | 1102 | |
2dd29d31 | 1103 | *pOplock = le16_to_cpu(psx_rsp->OplockFlags); |
790fe579 | 1104 | if (netfid) |
2dd29d31 SF |
1105 | *netfid = psx_rsp->Fid; /* cifs fid stays in le */ |
1106 | /* Let caller know file was created so we can set the mode. */ | |
1107 | /* Do we care about the CreateAction in any other cases? */ | |
790fe579 | 1108 | if (cpu_to_le32(FILE_CREATE) == psx_rsp->CreateAction) |
2dd29d31 SF |
1109 | *pOplock |= CIFS_CREATE_ACTION; |
1110 | /* check to make sure response data is there */ | |
8f2376ad CG |
1111 | if (psx_rsp->ReturnedLevel != cpu_to_le16(SMB_QUERY_FILE_UNIX_BASIC)) { |
1112 | pRetData->Type = cpu_to_le32(-1); /* unknown */ | |
cbac3cba | 1113 | #ifdef CONFIG_CIFS_DEBUG2 |
790fe579 | 1114 | cFYI(1, ("unknown type")); |
cbac3cba SF |
1115 | #endif |
1116 | } else { | |
790fe579 | 1117 | if (pSMBr->ByteCount < sizeof(OPEN_PSX_RSP) |
2dd29d31 | 1118 | + sizeof(FILE_UNIX_BASIC_INFO)) { |
50c2f753 | 1119 | cERROR(1, ("Open response data too small")); |
8f2376ad | 1120 | pRetData->Type = cpu_to_le32(-1); |
2dd29d31 SF |
1121 | goto psx_create_err; |
1122 | } | |
50c2f753 | 1123 | memcpy((char *) pRetData, |
cbac3cba | 1124 | (char *)psx_rsp + sizeof(OPEN_PSX_RSP), |
26f57364 | 1125 | sizeof(FILE_UNIX_BASIC_INFO)); |
2dd29d31 | 1126 | } |
2dd29d31 SF |
1127 | |
1128 | psx_create_err: | |
1129 | cifs_buf_release(pSMB); | |
1130 | ||
1131 | cifs_stats_inc(&tcon->num_mkdirs); | |
1132 | ||
1133 | if (rc == -EAGAIN) | |
1134 | goto PsxCreat; | |
1135 | ||
50c2f753 | 1136 | return rc; |
2dd29d31 SF |
1137 | } |
1138 | ||
a9d02ad4 SF |
1139 | static __u16 convert_disposition(int disposition) |
1140 | { | |
1141 | __u16 ofun = 0; | |
1142 | ||
1143 | switch (disposition) { | |
1144 | case FILE_SUPERSEDE: | |
1145 | ofun = SMBOPEN_OCREATE | SMBOPEN_OTRUNC; | |
1146 | break; | |
1147 | case FILE_OPEN: | |
1148 | ofun = SMBOPEN_OAPPEND; | |
1149 | break; | |
1150 | case FILE_CREATE: | |
1151 | ofun = SMBOPEN_OCREATE; | |
1152 | break; | |
1153 | case FILE_OPEN_IF: | |
1154 | ofun = SMBOPEN_OCREATE | SMBOPEN_OAPPEND; | |
1155 | break; | |
1156 | case FILE_OVERWRITE: | |
1157 | ofun = SMBOPEN_OTRUNC; | |
1158 | break; | |
1159 | case FILE_OVERWRITE_IF: | |
1160 | ofun = SMBOPEN_OCREATE | SMBOPEN_OTRUNC; | |
1161 | break; | |
1162 | default: | |
790fe579 | 1163 | cFYI(1, ("unknown disposition %d", disposition)); |
a9d02ad4 SF |
1164 | ofun = SMBOPEN_OAPPEND; /* regular open */ |
1165 | } | |
1166 | return ofun; | |
1167 | } | |
1168 | ||
1169 | int | |
1170 | SMBLegacyOpen(const int xid, struct cifsTconInfo *tcon, | |
1171 | const char *fileName, const int openDisposition, | |
1172 | const int access_flags, const int create_options, __u16 * netfid, | |
50c2f753 | 1173 | int *pOplock, FILE_ALL_INFO * pfile_info, |
a9d02ad4 SF |
1174 | const struct nls_table *nls_codepage, int remap) |
1175 | { | |
1176 | int rc = -EACCES; | |
1177 | OPENX_REQ *pSMB = NULL; | |
1178 | OPENX_RSP *pSMBr = NULL; | |
1179 | int bytes_returned; | |
1180 | int name_len; | |
1181 | __u16 count; | |
1182 | ||
1183 | OldOpenRetry: | |
1184 | rc = smb_init(SMB_COM_OPEN_ANDX, 15, tcon, (void **) &pSMB, | |
1185 | (void **) &pSMBr); | |
1186 | if (rc) | |
1187 | return rc; | |
1188 | ||
1189 | pSMB->AndXCommand = 0xFF; /* none */ | |
1190 | ||
1191 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1192 | count = 1; /* account for one byte pad to word boundary */ | |
1193 | name_len = | |
1194 | cifsConvertToUCS((__le16 *) (pSMB->fileName + 1), | |
1195 | fileName, PATH_MAX, nls_codepage, remap); | |
1196 | name_len++; /* trailing null */ | |
1197 | name_len *= 2; | |
1198 | } else { /* BB improve check for buffer overruns BB */ | |
1199 | count = 0; /* no pad */ | |
1200 | name_len = strnlen(fileName, PATH_MAX); | |
1201 | name_len++; /* trailing null */ | |
1202 | strncpy(pSMB->fileName, fileName, name_len); | |
1203 | } | |
1204 | if (*pOplock & REQ_OPLOCK) | |
1205 | pSMB->OpenFlags = cpu_to_le16(REQ_OPLOCK); | |
26f57364 | 1206 | else if (*pOplock & REQ_BATCHOPLOCK) |
a9d02ad4 | 1207 | pSMB->OpenFlags = cpu_to_le16(REQ_BATCHOPLOCK); |
26f57364 | 1208 | |
a9d02ad4 SF |
1209 | pSMB->OpenFlags |= cpu_to_le16(REQ_MORE_INFO); |
1210 | /* BB fixme add conversion for access_flags to bits 0 - 2 of mode */ | |
1211 | /* 0 = read | |
1212 | 1 = write | |
1213 | 2 = rw | |
1214 | 3 = execute | |
50c2f753 | 1215 | */ |
a9d02ad4 SF |
1216 | pSMB->Mode = cpu_to_le16(2); |
1217 | pSMB->Mode |= cpu_to_le16(0x40); /* deny none */ | |
1218 | /* set file as system file if special file such | |
1219 | as fifo and server expecting SFU style and | |
1220 | no Unix extensions */ | |
1221 | ||
790fe579 SF |
1222 | if (create_options & CREATE_OPTION_SPECIAL) |
1223 | pSMB->FileAttributes = cpu_to_le16(ATTR_SYSTEM); | |
1224 | else | |
3e87d803 | 1225 | pSMB->FileAttributes = cpu_to_le16(0/*ATTR_NORMAL*/); /* BB FIXME */ |
a9d02ad4 SF |
1226 | |
1227 | /* if ((omode & S_IWUGO) == 0) | |
1228 | pSMB->FileAttributes |= cpu_to_le32(ATTR_READONLY);*/ | |
1229 | /* Above line causes problems due to vfs splitting create into two | |
1230 | pieces - need to set mode after file created not while it is | |
1231 | being created */ | |
1232 | ||
1233 | /* BB FIXME BB */ | |
50c2f753 SF |
1234 | /* pSMB->CreateOptions = cpu_to_le32(create_options & |
1235 | CREATE_OPTIONS_MASK); */ | |
a9d02ad4 | 1236 | /* BB FIXME END BB */ |
3e87d803 SF |
1237 | |
1238 | pSMB->Sattr = cpu_to_le16(ATTR_HIDDEN | ATTR_SYSTEM | ATTR_DIRECTORY); | |
70ca734a | 1239 | pSMB->OpenFunction = cpu_to_le16(convert_disposition(openDisposition)); |
a9d02ad4 SF |
1240 | count += name_len; |
1241 | pSMB->hdr.smb_buf_length += count; | |
1242 | ||
1243 | pSMB->ByteCount = cpu_to_le16(count); | |
1244 | /* long_op set to 1 to allow for oplock break timeouts */ | |
1245 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
133672ef | 1246 | (struct smb_hdr *)pSMBr, &bytes_returned, CIFS_LONG_OP); |
a9d02ad4 SF |
1247 | cifs_stats_inc(&tcon->num_opens); |
1248 | if (rc) { | |
1249 | cFYI(1, ("Error in Open = %d", rc)); | |
1250 | } else { | |
1251 | /* BB verify if wct == 15 */ | |
1252 | ||
1253 | /* *pOplock = pSMBr->OplockLevel; */ /* BB take from action field BB */ | |
1254 | ||
1255 | *netfid = pSMBr->Fid; /* cifs fid stays in le */ | |
1256 | /* Let caller know file was created so we can set the mode. */ | |
1257 | /* Do we care about the CreateAction in any other cases? */ | |
1258 | /* BB FIXME BB */ | |
790fe579 | 1259 | /* if (cpu_to_le32(FILE_CREATE) == pSMBr->CreateAction) |
a9d02ad4 SF |
1260 | *pOplock |= CIFS_CREATE_ACTION; */ |
1261 | /* BB FIXME END */ | |
1262 | ||
790fe579 | 1263 | if (pfile_info) { |
a9d02ad4 SF |
1264 | pfile_info->CreationTime = 0; /* BB convert CreateTime*/ |
1265 | pfile_info->LastAccessTime = 0; /* BB fixme */ | |
1266 | pfile_info->LastWriteTime = 0; /* BB fixme */ | |
1267 | pfile_info->ChangeTime = 0; /* BB fixme */ | |
70ca734a | 1268 | pfile_info->Attributes = |
50c2f753 | 1269 | cpu_to_le32(le16_to_cpu(pSMBr->FileAttributes)); |
a9d02ad4 | 1270 | /* the file_info buf is endian converted by caller */ |
70ca734a SF |
1271 | pfile_info->AllocationSize = |
1272 | cpu_to_le64(le32_to_cpu(pSMBr->EndOfFile)); | |
1273 | pfile_info->EndOfFile = pfile_info->AllocationSize; | |
a9d02ad4 SF |
1274 | pfile_info->NumberOfLinks = cpu_to_le32(1); |
1275 | } | |
1276 | } | |
1277 | ||
1278 | cifs_buf_release(pSMB); | |
1279 | if (rc == -EAGAIN) | |
1280 | goto OldOpenRetry; | |
1281 | return rc; | |
1282 | } | |
1283 | ||
1da177e4 LT |
1284 | int |
1285 | CIFSSMBOpen(const int xid, struct cifsTconInfo *tcon, | |
1286 | const char *fileName, const int openDisposition, | |
1287 | const int access_flags, const int create_options, __u16 * netfid, | |
50c2f753 | 1288 | int *pOplock, FILE_ALL_INFO * pfile_info, |
737b758c | 1289 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
1290 | { |
1291 | int rc = -EACCES; | |
1292 | OPEN_REQ *pSMB = NULL; | |
1293 | OPEN_RSP *pSMBr = NULL; | |
1294 | int bytes_returned; | |
1295 | int name_len; | |
1296 | __u16 count; | |
1297 | ||
1298 | openRetry: | |
1299 | rc = smb_init(SMB_COM_NT_CREATE_ANDX, 24, tcon, (void **) &pSMB, | |
1300 | (void **) &pSMBr); | |
1301 | if (rc) | |
1302 | return rc; | |
1303 | ||
1304 | pSMB->AndXCommand = 0xFF; /* none */ | |
1305 | ||
1306 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1307 | count = 1; /* account for one byte pad to word boundary */ | |
1308 | name_len = | |
b1a45695 | 1309 | cifsConvertToUCS((__le16 *) (pSMB->fileName + 1), |
737b758c | 1310 | fileName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1311 | name_len++; /* trailing null */ |
1312 | name_len *= 2; | |
1313 | pSMB->NameLength = cpu_to_le16(name_len); | |
09d1db5c | 1314 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
1315 | count = 0; /* no pad */ |
1316 | name_len = strnlen(fileName, PATH_MAX); | |
1317 | name_len++; /* trailing null */ | |
1318 | pSMB->NameLength = cpu_to_le16(name_len); | |
1319 | strncpy(pSMB->fileName, fileName, name_len); | |
1320 | } | |
1321 | if (*pOplock & REQ_OPLOCK) | |
1322 | pSMB->OpenFlags = cpu_to_le32(REQ_OPLOCK); | |
26f57364 | 1323 | else if (*pOplock & REQ_BATCHOPLOCK) |
1da177e4 | 1324 | pSMB->OpenFlags = cpu_to_le32(REQ_BATCHOPLOCK); |
1da177e4 LT |
1325 | pSMB->DesiredAccess = cpu_to_le32(access_flags); |
1326 | pSMB->AllocationSize = 0; | |
eda3c029 SF |
1327 | /* set file as system file if special file such |
1328 | as fifo and server expecting SFU style and | |
1329 | no Unix extensions */ | |
790fe579 | 1330 | if (create_options & CREATE_OPTION_SPECIAL) |
eda3c029 SF |
1331 | pSMB->FileAttributes = cpu_to_le32(ATTR_SYSTEM); |
1332 | else | |
1333 | pSMB->FileAttributes = cpu_to_le32(ATTR_NORMAL); | |
1da177e4 LT |
1334 | /* XP does not handle ATTR_POSIX_SEMANTICS */ |
1335 | /* but it helps speed up case sensitive checks for other | |
1336 | servers such as Samba */ | |
1337 | if (tcon->ses->capabilities & CAP_UNIX) | |
1338 | pSMB->FileAttributes |= cpu_to_le32(ATTR_POSIX_SEMANTICS); | |
1339 | ||
1340 | /* if ((omode & S_IWUGO) == 0) | |
1341 | pSMB->FileAttributes |= cpu_to_le32(ATTR_READONLY);*/ | |
1342 | /* Above line causes problems due to vfs splitting create into two | |
1343 | pieces - need to set mode after file created not while it is | |
1344 | being created */ | |
1345 | pSMB->ShareAccess = cpu_to_le32(FILE_SHARE_ALL); | |
1346 | pSMB->CreateDisposition = cpu_to_le32(openDisposition); | |
eda3c029 | 1347 | pSMB->CreateOptions = cpu_to_le32(create_options & CREATE_OPTIONS_MASK); |
09d1db5c SF |
1348 | /* BB Expirement with various impersonation levels and verify */ |
1349 | pSMB->ImpersonationLevel = cpu_to_le32(SECURITY_IMPERSONATION); | |
1da177e4 LT |
1350 | pSMB->SecurityFlags = |
1351 | SECURITY_CONTEXT_TRACKING | SECURITY_EFFECTIVE_ONLY; | |
1352 | ||
1353 | count += name_len; | |
1354 | pSMB->hdr.smb_buf_length += count; | |
1355 | ||
1356 | pSMB->ByteCount = cpu_to_le16(count); | |
1357 | /* long_op set to 1 to allow for oplock break timeouts */ | |
1358 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
133672ef | 1359 | (struct smb_hdr *)pSMBr, &bytes_returned, CIFS_LONG_OP); |
a4544347 | 1360 | cifs_stats_inc(&tcon->num_opens); |
1da177e4 LT |
1361 | if (rc) { |
1362 | cFYI(1, ("Error in Open = %d", rc)); | |
1363 | } else { | |
09d1db5c | 1364 | *pOplock = pSMBr->OplockLevel; /* 1 byte no need to le_to_cpu */ |
1da177e4 LT |
1365 | *netfid = pSMBr->Fid; /* cifs fid stays in le */ |
1366 | /* Let caller know file was created so we can set the mode. */ | |
1367 | /* Do we care about the CreateAction in any other cases? */ | |
790fe579 | 1368 | if (cpu_to_le32(FILE_CREATE) == pSMBr->CreateAction) |
50c2f753 | 1369 | *pOplock |= CIFS_CREATE_ACTION; |
790fe579 | 1370 | if (pfile_info) { |
50c2f753 | 1371 | memcpy((char *)pfile_info, (char *)&pSMBr->CreationTime, |
1da177e4 LT |
1372 | 36 /* CreationTime to Attributes */); |
1373 | /* the file_info buf is endian converted by caller */ | |
1374 | pfile_info->AllocationSize = pSMBr->AllocationSize; | |
1375 | pfile_info->EndOfFile = pSMBr->EndOfFile; | |
1376 | pfile_info->NumberOfLinks = cpu_to_le32(1); | |
1377 | } | |
1da177e4 | 1378 | } |
a5a2b489 | 1379 | |
1da177e4 LT |
1380 | cifs_buf_release(pSMB); |
1381 | if (rc == -EAGAIN) | |
1382 | goto openRetry; | |
1383 | return rc; | |
1384 | } | |
1385 | ||
1da177e4 | 1386 | int |
50c2f753 SF |
1387 | CIFSSMBRead(const int xid, struct cifsTconInfo *tcon, const int netfid, |
1388 | const unsigned int count, const __u64 lseek, unsigned int *nbytes, | |
1389 | char **buf, int *pbuf_type) | |
1da177e4 LT |
1390 | { |
1391 | int rc = -EACCES; | |
1392 | READ_REQ *pSMB = NULL; | |
1393 | READ_RSP *pSMBr = NULL; | |
1394 | char *pReadData = NULL; | |
bfa0d75a | 1395 | int wct; |
ec637e3f SF |
1396 | int resp_buf_type = 0; |
1397 | struct kvec iov[1]; | |
1da177e4 | 1398 | |
790fe579 SF |
1399 | cFYI(1, ("Reading %d bytes on fid %d", count, netfid)); |
1400 | if (tcon->ses->capabilities & CAP_LARGE_FILES) | |
bfa0d75a SF |
1401 | wct = 12; |
1402 | else | |
1403 | wct = 10; /* old style read */ | |
1da177e4 LT |
1404 | |
1405 | *nbytes = 0; | |
ec637e3f | 1406 | rc = small_smb_init(SMB_COM_READ_ANDX, wct, tcon, (void **) &pSMB); |
1da177e4 LT |
1407 | if (rc) |
1408 | return rc; | |
1409 | ||
1410 | /* tcon and ses pointer are checked in smb_init */ | |
1411 | if (tcon->ses->server == NULL) | |
1412 | return -ECONNABORTED; | |
1413 | ||
ec637e3f | 1414 | pSMB->AndXCommand = 0xFF; /* none */ |
1da177e4 LT |
1415 | pSMB->Fid = netfid; |
1416 | pSMB->OffsetLow = cpu_to_le32(lseek & 0xFFFFFFFF); | |
790fe579 | 1417 | if (wct == 12) |
bfa0d75a | 1418 | pSMB->OffsetHigh = cpu_to_le32(lseek >> 32); |
790fe579 | 1419 | else if ((lseek >> 32) > 0) /* can not handle this big offset for old */ |
ec637e3f | 1420 | return -EIO; |
bfa0d75a | 1421 | |
1da177e4 LT |
1422 | pSMB->Remaining = 0; |
1423 | pSMB->MaxCount = cpu_to_le16(count & 0xFFFF); | |
1424 | pSMB->MaxCountHigh = cpu_to_le32(count >> 16); | |
790fe579 | 1425 | if (wct == 12) |
bfa0d75a SF |
1426 | pSMB->ByteCount = 0; /* no need to do le conversion since 0 */ |
1427 | else { | |
1428 | /* old style read */ | |
50c2f753 | 1429 | struct smb_com_readx_req *pSMBW = |
bfa0d75a | 1430 | (struct smb_com_readx_req *)pSMB; |
ec637e3f | 1431 | pSMBW->ByteCount = 0; |
bfa0d75a | 1432 | } |
ec637e3f SF |
1433 | |
1434 | iov[0].iov_base = (char *)pSMB; | |
1435 | iov[0].iov_len = pSMB->hdr.smb_buf_length + 4; | |
a761ac57 | 1436 | rc = SendReceive2(xid, tcon->ses, iov, 1 /* num iovecs */, |
133672ef | 1437 | &resp_buf_type, CIFS_STD_OP | CIFS_LOG_ERROR); |
a4544347 | 1438 | cifs_stats_inc(&tcon->num_reads); |
ec637e3f | 1439 | pSMBr = (READ_RSP *)iov[0].iov_base; |
1da177e4 LT |
1440 | if (rc) { |
1441 | cERROR(1, ("Send error in read = %d", rc)); | |
1442 | } else { | |
1443 | int data_length = le16_to_cpu(pSMBr->DataLengthHigh); | |
1444 | data_length = data_length << 16; | |
1445 | data_length += le16_to_cpu(pSMBr->DataLength); | |
1446 | *nbytes = data_length; | |
1447 | ||
1448 | /*check that DataLength would not go beyond end of SMB */ | |
ec637e3f | 1449 | if ((data_length > CIFSMaxBufSize) |
1da177e4 | 1450 | || (data_length > count)) { |
50c2f753 SF |
1451 | cFYI(1, ("bad length %d for count %d", |
1452 | data_length, count)); | |
1da177e4 LT |
1453 | rc = -EIO; |
1454 | *nbytes = 0; | |
1455 | } else { | |
ec637e3f | 1456 | pReadData = (char *) (&pSMBr->hdr.Protocol) + |
26f57364 SF |
1457 | le16_to_cpu(pSMBr->DataOffset); |
1458 | /* if (rc = copy_to_user(buf, pReadData, data_length)) { | |
50c2f753 SF |
1459 | cERROR(1,("Faulting on read rc = %d",rc)); |
1460 | rc = -EFAULT; | |
26f57364 | 1461 | }*/ /* can not use copy_to_user when using page cache*/ |
790fe579 | 1462 | if (*buf) |
50c2f753 | 1463 | memcpy(*buf, pReadData, data_length); |
1da177e4 LT |
1464 | } |
1465 | } | |
1da177e4 | 1466 | |
4b8f930f | 1467 | /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */ |
790fe579 SF |
1468 | if (*buf) { |
1469 | if (resp_buf_type == CIFS_SMALL_BUFFER) | |
ec637e3f | 1470 | cifs_small_buf_release(iov[0].iov_base); |
790fe579 | 1471 | else if (resp_buf_type == CIFS_LARGE_BUFFER) |
ec637e3f | 1472 | cifs_buf_release(iov[0].iov_base); |
790fe579 | 1473 | } else if (resp_buf_type != CIFS_NO_BUFFER) { |
50c2f753 SF |
1474 | /* return buffer to caller to free */ |
1475 | *buf = iov[0].iov_base; | |
790fe579 | 1476 | if (resp_buf_type == CIFS_SMALL_BUFFER) |
ec637e3f | 1477 | *pbuf_type = CIFS_SMALL_BUFFER; |
790fe579 | 1478 | else if (resp_buf_type == CIFS_LARGE_BUFFER) |
ec637e3f | 1479 | *pbuf_type = CIFS_LARGE_BUFFER; |
6cec2aed | 1480 | } /* else no valid buffer on return - leave as null */ |
ec637e3f SF |
1481 | |
1482 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
1da177e4 LT |
1483 | since file handle passed in no longer valid */ |
1484 | return rc; | |
1485 | } | |
1486 | ||
ec637e3f | 1487 | |
1da177e4 LT |
1488 | int |
1489 | CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon, | |
1490 | const int netfid, const unsigned int count, | |
1491 | const __u64 offset, unsigned int *nbytes, const char *buf, | |
50c2f753 | 1492 | const char __user *ubuf, const int long_op) |
1da177e4 LT |
1493 | { |
1494 | int rc = -EACCES; | |
1495 | WRITE_REQ *pSMB = NULL; | |
1496 | WRITE_RSP *pSMBr = NULL; | |
1c955187 | 1497 | int bytes_returned, wct; |
1da177e4 LT |
1498 | __u32 bytes_sent; |
1499 | __u16 byte_count; | |
1500 | ||
1501 | /* cFYI(1,("write at %lld %d bytes",offset,count));*/ | |
790fe579 | 1502 | if (tcon->ses == NULL) |
1c955187 SF |
1503 | return -ECONNABORTED; |
1504 | ||
790fe579 | 1505 | if (tcon->ses->capabilities & CAP_LARGE_FILES) |
1c955187 SF |
1506 | wct = 14; |
1507 | else | |
1508 | wct = 12; | |
1509 | ||
1510 | rc = smb_init(SMB_COM_WRITE_ANDX, wct, tcon, (void **) &pSMB, | |
1da177e4 LT |
1511 | (void **) &pSMBr); |
1512 | if (rc) | |
1513 | return rc; | |
1514 | /* tcon and ses pointer are checked in smb_init */ | |
1515 | if (tcon->ses->server == NULL) | |
1516 | return -ECONNABORTED; | |
1517 | ||
1518 | pSMB->AndXCommand = 0xFF; /* none */ | |
1519 | pSMB->Fid = netfid; | |
1520 | pSMB->OffsetLow = cpu_to_le32(offset & 0xFFFFFFFF); | |
790fe579 | 1521 | if (wct == 14) |
1c955187 | 1522 | pSMB->OffsetHigh = cpu_to_le32(offset >> 32); |
790fe579 | 1523 | else if ((offset >> 32) > 0) /* can not handle big offset for old srv */ |
1c955187 | 1524 | return -EIO; |
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) |
50c2f753 | 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 SF |
1558 | byte_count = bytes_sent + 1; /* pad */ |
1559 | else /* wct == 12 */ { | |
1560 | byte_count = bytes_sent + 5; /* bigger pad, smaller smb hdr */ | |
1da177e4 | 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 | |
790fe579 | 1607 | cFYI(1, ("write2 at %lld %d bytes", (long long)offset, count)); |
ff7feac9 | 1608 | |
790fe579 | 1609 | if (tcon->ses->capabilities & CAP_LARGE_FILES) |
8cc64c6e SF |
1610 | wct = 14; |
1611 | else | |
1612 | wct = 12; | |
1613 | rc = small_smb_init(SMB_COM_WRITE_ANDX, wct, tcon, (void **) &pSMB); | |
1da177e4 LT |
1614 | if (rc) |
1615 | return rc; | |
1da177e4 LT |
1616 | /* tcon and ses pointer are checked in smb_init */ |
1617 | if (tcon->ses->server == NULL) | |
1618 | return -ECONNABORTED; | |
1619 | ||
d6e04ae6 | 1620 | pSMB->AndXCommand = 0xFF; /* none */ |
1da177e4 LT |
1621 | pSMB->Fid = netfid; |
1622 | pSMB->OffsetLow = cpu_to_le32(offset & 0xFFFFFFFF); | |
790fe579 | 1623 | if (wct == 14) |
8cc64c6e | 1624 | pSMB->OffsetHigh = cpu_to_le32(offset >> 32); |
790fe579 | 1625 | else if ((offset >> 32) > 0) /* can not handle big offset for old srv */ |
8cc64c6e | 1626 | return -EIO; |
1da177e4 LT |
1627 | pSMB->Reserved = 0xFFFFFFFF; |
1628 | pSMB->WriteMode = 0; | |
1629 | pSMB->Remaining = 0; | |
d6e04ae6 | 1630 | |
1da177e4 | 1631 | pSMB->DataOffset = |
50c2f753 | 1632 | cpu_to_le16(offsetof(struct smb_com_write_req, Data) - 4); |
1da177e4 | 1633 | |
3e84469d SF |
1634 | pSMB->DataLengthLow = cpu_to_le16(count & 0xFFFF); |
1635 | pSMB->DataLengthHigh = cpu_to_le16(count >> 16); | |
d6e04ae6 | 1636 | smb_hdr_len = pSMB->hdr.smb_buf_length + 1; /* hdr + 1 byte pad */ |
790fe579 | 1637 | if (wct == 14) |
8cc64c6e SF |
1638 | pSMB->hdr.smb_buf_length += count+1; |
1639 | else /* wct == 12 */ | |
790fe579 SF |
1640 | pSMB->hdr.smb_buf_length += count+5; /* smb data starts later */ |
1641 | if (wct == 14) | |
8cc64c6e SF |
1642 | pSMB->ByteCount = cpu_to_le16(count + 1); |
1643 | else /* wct == 12 */ /* bigger pad, smaller smb hdr, keep offset ok */ { | |
50c2f753 | 1644 | struct smb_com_writex_req *pSMBW = |
8cc64c6e SF |
1645 | (struct smb_com_writex_req *)pSMB; |
1646 | pSMBW->ByteCount = cpu_to_le16(count + 5); | |
1647 | } | |
3e84469d | 1648 | iov[0].iov_base = pSMB; |
790fe579 | 1649 | if (wct == 14) |
ec637e3f SF |
1650 | iov[0].iov_len = smb_hdr_len + 4; |
1651 | else /* wct == 12 pad bigger by four bytes */ | |
1652 | iov[0].iov_len = smb_hdr_len + 8; | |
50c2f753 | 1653 | |
1da177e4 | 1654 | |
ec637e3f | 1655 | rc = SendReceive2(xid, tcon->ses, iov, n_vec + 1, &resp_buf_type, |
133672ef | 1656 | long_op); |
a4544347 | 1657 | cifs_stats_inc(&tcon->num_writes); |
1da177e4 | 1658 | if (rc) { |
8cc64c6e | 1659 | cFYI(1, ("Send error Write2 = %d", rc)); |
1da177e4 | 1660 | *nbytes = 0; |
790fe579 | 1661 | } else if (resp_buf_type == 0) { |
ec637e3f SF |
1662 | /* presumably this can not happen, but best to be safe */ |
1663 | rc = -EIO; | |
1664 | *nbytes = 0; | |
d6e04ae6 | 1665 | } else { |
ec637e3f | 1666 | WRITE_RSP * pSMBr = (WRITE_RSP *)iov[0].iov_base; |
d6e04ae6 SF |
1667 | *nbytes = le16_to_cpu(pSMBr->CountHigh); |
1668 | *nbytes = (*nbytes) << 16; | |
1669 | *nbytes += le16_to_cpu(pSMBr->Count); | |
50c2f753 | 1670 | } |
1da177e4 | 1671 | |
4b8f930f | 1672 | /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */ |
790fe579 | 1673 | if (resp_buf_type == CIFS_SMALL_BUFFER) |
ec637e3f | 1674 | cifs_small_buf_release(iov[0].iov_base); |
790fe579 | 1675 | else if (resp_buf_type == CIFS_LARGE_BUFFER) |
ec637e3f | 1676 | cifs_buf_release(iov[0].iov_base); |
1da177e4 | 1677 | |
50c2f753 | 1678 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
1da177e4 LT |
1679 | since file handle passed in no longer valid */ |
1680 | ||
1681 | return rc; | |
1682 | } | |
d6e04ae6 SF |
1683 | |
1684 | ||
1da177e4 LT |
1685 | int |
1686 | CIFSSMBLock(const int xid, struct cifsTconInfo *tcon, | |
1687 | const __u16 smb_file_id, const __u64 len, | |
1688 | const __u64 offset, const __u32 numUnlock, | |
1689 | const __u32 numLock, const __u8 lockType, const int waitFlag) | |
1690 | { | |
1691 | int rc = 0; | |
1692 | LOCK_REQ *pSMB = NULL; | |
1693 | LOCK_RSP *pSMBr = NULL; | |
1694 | int bytes_returned; | |
1695 | int timeout = 0; | |
1696 | __u16 count; | |
1697 | ||
133672ef | 1698 | cFYI(1, ("CIFSSMBLock timeout %d numLock %d", waitFlag, numLock)); |
46810cbf SF |
1699 | rc = small_smb_init(SMB_COM_LOCKING_ANDX, 8, tcon, (void **) &pSMB); |
1700 | ||
1da177e4 LT |
1701 | if (rc) |
1702 | return rc; | |
1703 | ||
46810cbf SF |
1704 | pSMBr = (LOCK_RSP *)pSMB; /* BB removeme BB */ |
1705 | ||
790fe579 | 1706 | if (lockType == LOCKING_ANDX_OPLOCK_RELEASE) { |
133672ef | 1707 | timeout = CIFS_ASYNC_OP; /* no response expected */ |
1da177e4 LT |
1708 | pSMB->Timeout = 0; |
1709 | } else if (waitFlag == TRUE) { | |
133672ef | 1710 | timeout = CIFS_BLOCKING_OP; /* blocking operation, no timeout */ |
1da177e4 LT |
1711 | pSMB->Timeout = cpu_to_le32(-1);/* blocking - do not time out */ |
1712 | } else { | |
1713 | pSMB->Timeout = 0; | |
1714 | } | |
1715 | ||
1716 | pSMB->NumberOfLocks = cpu_to_le16(numLock); | |
1717 | pSMB->NumberOfUnlocks = cpu_to_le16(numUnlock); | |
1718 | pSMB->LockType = lockType; | |
1719 | pSMB->AndXCommand = 0xFF; /* none */ | |
1720 | pSMB->Fid = smb_file_id; /* netfid stays le */ | |
1721 | ||
790fe579 | 1722 | if ((numLock != 0) || (numUnlock != 0)) { |
1da177e4 LT |
1723 | pSMB->Locks[0].Pid = cpu_to_le16(current->tgid); |
1724 | /* BB where to store pid high? */ | |
1725 | pSMB->Locks[0].LengthLow = cpu_to_le32((u32)len); | |
1726 | pSMB->Locks[0].LengthHigh = cpu_to_le32((u32)(len>>32)); | |
1727 | pSMB->Locks[0].OffsetLow = cpu_to_le32((u32)offset); | |
1728 | pSMB->Locks[0].OffsetHigh = cpu_to_le32((u32)(offset>>32)); | |
1729 | count = sizeof(LOCKING_ANDX_RANGE); | |
1730 | } else { | |
1731 | /* oplock break */ | |
1732 | count = 0; | |
1733 | } | |
1734 | pSMB->hdr.smb_buf_length += count; | |
1735 | pSMB->ByteCount = cpu_to_le16(count); | |
1736 | ||
7ee1af76 JA |
1737 | if (waitFlag) { |
1738 | rc = SendReceiveBlockingLock(xid, tcon, (struct smb_hdr *) pSMB, | |
1739 | (struct smb_hdr *) pSMBr, &bytes_returned); | |
133672ef | 1740 | cifs_small_buf_release(pSMB); |
7ee1af76 | 1741 | } else { |
133672ef SF |
1742 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *)pSMB, |
1743 | timeout); | |
1744 | /* SMB buffer freed by function above */ | |
7ee1af76 | 1745 | } |
a4544347 | 1746 | cifs_stats_inc(&tcon->num_locks); |
1da177e4 LT |
1747 | if (rc) { |
1748 | cFYI(1, ("Send error in Lock = %d", rc)); | |
1749 | } | |
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, |
fc94cdb9 | 1760 | const int 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) |
fc94cdb9 SF |
1775 | return EINVAL; |
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); | |
1794 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB PDU from sess */ | |
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 | } | |
790fe579 | 1853 | if (pLockData == NULL) { |
fc94cdb9 SF |
1854 | rc = -EINVAL; |
1855 | goto plk_err_exit; | |
1856 | } | |
1857 | data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
1858 | data_count = le16_to_cpu(pSMBr->t2.DataCount); | |
790fe579 | 1859 | if (data_count < sizeof(struct cifs_posix_lock)) { |
fc94cdb9 SF |
1860 | rc = -EIO; |
1861 | goto plk_err_exit; | |
1862 | } | |
1863 | parm_data = (struct cifs_posix_lock *) | |
1864 | ((char *)&pSMBr->hdr.Protocol + data_offset); | |
790fe579 | 1865 | if (parm_data->lock_type == cpu_to_le16(CIFS_UNLCK)) |
fc94cdb9 | 1866 | pLockData->fl_type = F_UNLCK; |
08547b03 | 1867 | } |
50c2f753 | 1868 | |
fc94cdb9 | 1869 | plk_err_exit: |
08547b03 SF |
1870 | if (pSMB) |
1871 | cifs_small_buf_release(pSMB); | |
1872 | ||
133672ef SF |
1873 | if (resp_buf_type == CIFS_SMALL_BUFFER) |
1874 | cifs_small_buf_release(iov[0].iov_base); | |
1875 | else if (resp_buf_type == CIFS_LARGE_BUFFER) | |
1876 | cifs_buf_release(iov[0].iov_base); | |
1877 | ||
08547b03 SF |
1878 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
1879 | since file handle passed in no longer valid */ | |
1880 | ||
1881 | return rc; | |
1882 | } | |
1883 | ||
1884 | ||
1da177e4 LT |
1885 | int |
1886 | CIFSSMBClose(const int xid, struct cifsTconInfo *tcon, int smb_file_id) | |
1887 | { | |
1888 | int rc = 0; | |
1889 | CLOSE_REQ *pSMB = NULL; | |
1da177e4 LT |
1890 | cFYI(1, ("In CIFSSMBClose")); |
1891 | ||
1892 | /* do not retry on dead session on close */ | |
1893 | rc = small_smb_init(SMB_COM_CLOSE, 3, tcon, (void **) &pSMB); | |
790fe579 | 1894 | if (rc == -EAGAIN) |
1da177e4 LT |
1895 | return 0; |
1896 | if (rc) | |
1897 | return rc; | |
1898 | ||
1da177e4 | 1899 | pSMB->FileID = (__u16) smb_file_id; |
b815f1e5 | 1900 | pSMB->LastWriteTime = 0xFFFFFFFF; |
1da177e4 | 1901 | pSMB->ByteCount = 0; |
133672ef | 1902 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); |
a4544347 | 1903 | cifs_stats_inc(&tcon->num_closes); |
1da177e4 | 1904 | if (rc) { |
790fe579 | 1905 | if (rc != -EINTR) { |
1da177e4 LT |
1906 | /* EINTR is expected when user ctl-c to kill app */ |
1907 | cERROR(1, ("Send error in Close = %d", rc)); | |
1908 | } | |
1909 | } | |
1910 | ||
1da177e4 | 1911 | /* Since session is dead, file will be closed on server already */ |
790fe579 | 1912 | if (rc == -EAGAIN) |
1da177e4 LT |
1913 | rc = 0; |
1914 | ||
1915 | return rc; | |
1916 | } | |
1917 | ||
1918 | int | |
1919 | CIFSSMBRename(const int xid, struct cifsTconInfo *tcon, | |
1920 | const char *fromName, const char *toName, | |
737b758c | 1921 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
1922 | { |
1923 | int rc = 0; | |
1924 | RENAME_REQ *pSMB = NULL; | |
1925 | RENAME_RSP *pSMBr = NULL; | |
1926 | int bytes_returned; | |
1927 | int name_len, name_len2; | |
1928 | __u16 count; | |
1929 | ||
1930 | cFYI(1, ("In CIFSSMBRename")); | |
1931 | renameRetry: | |
1932 | rc = smb_init(SMB_COM_RENAME, 1, tcon, (void **) &pSMB, | |
1933 | (void **) &pSMBr); | |
1934 | if (rc) | |
1935 | return rc; | |
1936 | ||
1937 | pSMB->BufferFormat = 0x04; | |
1938 | pSMB->SearchAttributes = | |
1939 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | | |
1940 | ATTR_DIRECTORY); | |
1941 | ||
1942 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1943 | name_len = | |
50c2f753 | 1944 | cifsConvertToUCS((__le16 *) pSMB->OldFileName, fromName, |
737b758c | 1945 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1946 | name_len++; /* trailing null */ |
1947 | name_len *= 2; | |
1948 | pSMB->OldFileName[name_len] = 0x04; /* pad */ | |
1949 | /* protocol requires ASCII signature byte on Unicode string */ | |
1950 | pSMB->OldFileName[name_len + 1] = 0x00; | |
1951 | name_len2 = | |
b1a45695 | 1952 | cifsConvertToUCS((__le16 *) &pSMB->OldFileName[name_len + 2], |
737b758c | 1953 | toName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1954 | name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; |
1955 | name_len2 *= 2; /* convert to bytes */ | |
50c2f753 | 1956 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
1957 | name_len = strnlen(fromName, PATH_MAX); |
1958 | name_len++; /* trailing null */ | |
1959 | strncpy(pSMB->OldFileName, fromName, name_len); | |
1960 | name_len2 = strnlen(toName, PATH_MAX); | |
1961 | name_len2++; /* trailing null */ | |
1962 | pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */ | |
1963 | strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2); | |
1964 | name_len2++; /* trailing null */ | |
1965 | name_len2++; /* signature byte */ | |
1966 | } | |
1967 | ||
1968 | count = 1 /* 1st signature byte */ + name_len + name_len2; | |
1969 | pSMB->hdr.smb_buf_length += count; | |
1970 | pSMB->ByteCount = cpu_to_le16(count); | |
1971 | ||
1972 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1973 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 1974 | cifs_stats_inc(&tcon->num_renames); |
1da177e4 LT |
1975 | if (rc) { |
1976 | cFYI(1, ("Send error in rename = %d", rc)); | |
50c2f753 | 1977 | } |
1da177e4 | 1978 | |
1da177e4 LT |
1979 | cifs_buf_release(pSMB); |
1980 | ||
1981 | if (rc == -EAGAIN) | |
1982 | goto renameRetry; | |
1983 | ||
1984 | return rc; | |
1985 | } | |
1986 | ||
50c2f753 SF |
1987 | int CIFSSMBRenameOpenFile(const int xid, struct cifsTconInfo *pTcon, |
1988 | int netfid, char *target_name, | |
1989 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
1990 | { |
1991 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
1992 | struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; | |
50c2f753 | 1993 | struct set_file_rename *rename_info; |
1da177e4 LT |
1994 | char *data_offset; |
1995 | char dummy_string[30]; | |
1996 | int rc = 0; | |
1997 | int bytes_returned = 0; | |
1998 | int len_of_str; | |
1999 | __u16 params, param_offset, offset, count, byte_count; | |
2000 | ||
2001 | cFYI(1, ("Rename to File by handle")); | |
2002 | rc = smb_init(SMB_COM_TRANSACTION2, 15, pTcon, (void **) &pSMB, | |
2003 | (void **) &pSMBr); | |
2004 | if (rc) | |
2005 | return rc; | |
2006 | ||
2007 | params = 6; | |
2008 | pSMB->MaxSetupCount = 0; | |
2009 | pSMB->Reserved = 0; | |
2010 | pSMB->Flags = 0; | |
2011 | pSMB->Timeout = 0; | |
2012 | pSMB->Reserved2 = 0; | |
2013 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
2014 | offset = param_offset + params; | |
2015 | ||
2016 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
2017 | rename_info = (struct set_file_rename *) data_offset; | |
2018 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
2019 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB PDU from sess */ | |
2020 | pSMB->SetupCount = 1; | |
2021 | pSMB->Reserved3 = 0; | |
2022 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
2023 | byte_count = 3 /* pad */ + params; | |
2024 | pSMB->ParameterCount = cpu_to_le16(params); | |
2025 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
2026 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
2027 | pSMB->DataOffset = cpu_to_le16(offset); | |
2028 | /* construct random name ".cifs_tmp<inodenum><mid>" */ | |
2029 | rename_info->overwrite = cpu_to_le32(1); | |
2030 | rename_info->root_fid = 0; | |
2031 | /* unicode only call */ | |
790fe579 | 2032 | if (target_name == NULL) { |
50c2f753 SF |
2033 | sprintf(dummy_string, "cifs%x", pSMB->hdr.Mid); |
2034 | len_of_str = cifsConvertToUCS((__le16 *)rename_info->target_name, | |
737b758c | 2035 | dummy_string, 24, nls_codepage, remap); |
1da177e4 | 2036 | } else { |
b1a45695 | 2037 | len_of_str = cifsConvertToUCS((__le16 *)rename_info->target_name, |
50c2f753 SF |
2038 | target_name, PATH_MAX, nls_codepage, |
2039 | remap); | |
1da177e4 LT |
2040 | } |
2041 | rename_info->target_name_len = cpu_to_le32(2 * len_of_str); | |
2042 | count = 12 /* sizeof(struct set_file_rename) */ + (2 * len_of_str) + 2; | |
2043 | byte_count += count; | |
2044 | pSMB->DataCount = cpu_to_le16(count); | |
2045 | pSMB->TotalDataCount = pSMB->DataCount; | |
2046 | pSMB->Fid = netfid; | |
2047 | pSMB->InformationLevel = | |
2048 | cpu_to_le16(SMB_SET_FILE_RENAME_INFORMATION); | |
2049 | pSMB->Reserved4 = 0; | |
2050 | pSMB->hdr.smb_buf_length += byte_count; | |
2051 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2052 | rc = SendReceive(xid, pTcon->ses, (struct smb_hdr *) pSMB, | |
50c2f753 | 2053 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
a4544347 | 2054 | cifs_stats_inc(&pTcon->num_t2renames); |
1da177e4 | 2055 | if (rc) { |
790fe579 | 2056 | cFYI(1, ("Send error in Rename (by file handle) = %d", rc)); |
1da177e4 | 2057 | } |
a5a2b489 | 2058 | |
1da177e4 LT |
2059 | cifs_buf_release(pSMB); |
2060 | ||
2061 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
2062 | since file handle passed in no longer valid */ | |
2063 | ||
2064 | return rc; | |
2065 | } | |
2066 | ||
2067 | int | |
50c2f753 SF |
2068 | CIFSSMBCopy(const int xid, struct cifsTconInfo *tcon, const char *fromName, |
2069 | const __u16 target_tid, const char *toName, const int flags, | |
2070 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
2071 | { |
2072 | int rc = 0; | |
2073 | COPY_REQ *pSMB = NULL; | |
2074 | COPY_RSP *pSMBr = NULL; | |
2075 | int bytes_returned; | |
2076 | int name_len, name_len2; | |
2077 | __u16 count; | |
2078 | ||
2079 | cFYI(1, ("In CIFSSMBCopy")); | |
2080 | copyRetry: | |
2081 | rc = smb_init(SMB_COM_COPY, 1, tcon, (void **) &pSMB, | |
2082 | (void **) &pSMBr); | |
2083 | if (rc) | |
2084 | return rc; | |
2085 | ||
2086 | pSMB->BufferFormat = 0x04; | |
2087 | pSMB->Tid2 = target_tid; | |
2088 | ||
2089 | pSMB->Flags = cpu_to_le16(flags & COPY_TREE); | |
2090 | ||
2091 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
50c2f753 | 2092 | name_len = cifsConvertToUCS((__le16 *) pSMB->OldFileName, |
737b758c SF |
2093 | fromName, PATH_MAX, nls_codepage, |
2094 | remap); | |
1da177e4 LT |
2095 | name_len++; /* trailing null */ |
2096 | name_len *= 2; | |
2097 | pSMB->OldFileName[name_len] = 0x04; /* pad */ | |
2098 | /* protocol requires ASCII signature byte on Unicode string */ | |
2099 | pSMB->OldFileName[name_len + 1] = 0x00; | |
50c2f753 SF |
2100 | name_len2 = |
2101 | cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2], | |
737b758c | 2102 | toName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2103 | name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; |
2104 | name_len2 *= 2; /* convert to bytes */ | |
50c2f753 | 2105 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2106 | name_len = strnlen(fromName, PATH_MAX); |
2107 | name_len++; /* trailing null */ | |
2108 | strncpy(pSMB->OldFileName, fromName, name_len); | |
2109 | name_len2 = strnlen(toName, PATH_MAX); | |
2110 | name_len2++; /* trailing null */ | |
2111 | pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */ | |
2112 | strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2); | |
2113 | name_len2++; /* trailing null */ | |
2114 | name_len2++; /* signature byte */ | |
2115 | } | |
2116 | ||
2117 | count = 1 /* 1st signature byte */ + name_len + name_len2; | |
2118 | pSMB->hdr.smb_buf_length += count; | |
2119 | pSMB->ByteCount = cpu_to_le16(count); | |
2120 | ||
2121 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2122 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2123 | if (rc) { | |
2124 | cFYI(1, ("Send error in copy = %d with %d files copied", | |
2125 | rc, le16_to_cpu(pSMBr->CopyCount))); | |
2126 | } | |
2127 | if (pSMB) | |
2128 | cifs_buf_release(pSMB); | |
2129 | ||
2130 | if (rc == -EAGAIN) | |
2131 | goto copyRetry; | |
2132 | ||
2133 | return rc; | |
2134 | } | |
2135 | ||
2136 | int | |
2137 | CIFSUnixCreateSymLink(const int xid, struct cifsTconInfo *tcon, | |
2138 | const char *fromName, const char *toName, | |
2139 | const struct nls_table *nls_codepage) | |
2140 | { | |
2141 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
2142 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
2143 | char *data_offset; | |
2144 | int name_len; | |
2145 | int name_len_target; | |
2146 | int rc = 0; | |
2147 | int bytes_returned = 0; | |
2148 | __u16 params, param_offset, offset, byte_count; | |
2149 | ||
2150 | cFYI(1, ("In Symlink Unix style")); | |
2151 | createSymLinkRetry: | |
2152 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2153 | (void **) &pSMBr); | |
2154 | if (rc) | |
2155 | return rc; | |
2156 | ||
2157 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2158 | name_len = | |
e89dc920 | 2159 | cifs_strtoUCS((__le16 *) pSMB->FileName, fromName, PATH_MAX |
1da177e4 LT |
2160 | /* find define for this maxpathcomponent */ |
2161 | , nls_codepage); | |
2162 | name_len++; /* trailing null */ | |
2163 | name_len *= 2; | |
2164 | ||
50c2f753 | 2165 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2166 | name_len = strnlen(fromName, PATH_MAX); |
2167 | name_len++; /* trailing null */ | |
2168 | strncpy(pSMB->FileName, fromName, name_len); | |
2169 | } | |
2170 | params = 6 + name_len; | |
2171 | pSMB->MaxSetupCount = 0; | |
2172 | pSMB->Reserved = 0; | |
2173 | pSMB->Flags = 0; | |
2174 | pSMB->Timeout = 0; | |
2175 | pSMB->Reserved2 = 0; | |
2176 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 2177 | InformationLevel) - 4; |
1da177e4 LT |
2178 | offset = param_offset + params; |
2179 | ||
2180 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
2181 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2182 | name_len_target = | |
e89dc920 | 2183 | cifs_strtoUCS((__le16 *) data_offset, toName, PATH_MAX |
1da177e4 LT |
2184 | /* find define for this maxpathcomponent */ |
2185 | , nls_codepage); | |
2186 | name_len_target++; /* trailing null */ | |
2187 | name_len_target *= 2; | |
50c2f753 | 2188 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2189 | name_len_target = strnlen(toName, PATH_MAX); |
2190 | name_len_target++; /* trailing null */ | |
2191 | strncpy(data_offset, toName, name_len_target); | |
2192 | } | |
2193 | ||
2194 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
2195 | /* BB find exact max on data count below from sess */ | |
2196 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
2197 | pSMB->SetupCount = 1; | |
2198 | pSMB->Reserved3 = 0; | |
2199 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
2200 | byte_count = 3 /* pad */ + params + name_len_target; | |
2201 | pSMB->DataCount = cpu_to_le16(name_len_target); | |
2202 | pSMB->ParameterCount = cpu_to_le16(params); | |
2203 | pSMB->TotalDataCount = pSMB->DataCount; | |
2204 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
2205 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
2206 | pSMB->DataOffset = cpu_to_le16(offset); | |
2207 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_LINK); | |
2208 | pSMB->Reserved4 = 0; | |
2209 | pSMB->hdr.smb_buf_length += byte_count; | |
2210 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2211 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2212 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 2213 | cifs_stats_inc(&tcon->num_symlinks); |
1da177e4 | 2214 | if (rc) { |
2d785a50 | 2215 | cFYI(1, ("Send error in SetPathInfo create symlink = %d", rc)); |
1da177e4 LT |
2216 | } |
2217 | ||
2218 | if (pSMB) | |
2219 | cifs_buf_release(pSMB); | |
2220 | ||
2221 | if (rc == -EAGAIN) | |
2222 | goto createSymLinkRetry; | |
2223 | ||
2224 | return rc; | |
2225 | } | |
2226 | ||
2227 | int | |
2228 | CIFSUnixCreateHardLink(const int xid, struct cifsTconInfo *tcon, | |
2229 | const char *fromName, const char *toName, | |
737b758c | 2230 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
2231 | { |
2232 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
2233 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
2234 | char *data_offset; | |
2235 | int name_len; | |
2236 | int name_len_target; | |
2237 | int rc = 0; | |
2238 | int bytes_returned = 0; | |
2239 | __u16 params, param_offset, offset, byte_count; | |
2240 | ||
2241 | cFYI(1, ("In Create Hard link Unix style")); | |
2242 | createHardLinkRetry: | |
2243 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2244 | (void **) &pSMBr); | |
2245 | if (rc) | |
2246 | return rc; | |
2247 | ||
2248 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
b1a45695 | 2249 | name_len = cifsConvertToUCS((__le16 *) pSMB->FileName, toName, |
737b758c | 2250 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2251 | name_len++; /* trailing null */ |
2252 | name_len *= 2; | |
2253 | ||
50c2f753 | 2254 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2255 | name_len = strnlen(toName, PATH_MAX); |
2256 | name_len++; /* trailing null */ | |
2257 | strncpy(pSMB->FileName, toName, name_len); | |
2258 | } | |
2259 | params = 6 + name_len; | |
2260 | pSMB->MaxSetupCount = 0; | |
2261 | pSMB->Reserved = 0; | |
2262 | pSMB->Flags = 0; | |
2263 | pSMB->Timeout = 0; | |
2264 | pSMB->Reserved2 = 0; | |
2265 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 2266 | InformationLevel) - 4; |
1da177e4 LT |
2267 | offset = param_offset + params; |
2268 | ||
2269 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
2270 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2271 | name_len_target = | |
b1a45695 | 2272 | cifsConvertToUCS((__le16 *) data_offset, fromName, PATH_MAX, |
737b758c | 2273 | nls_codepage, remap); |
1da177e4 LT |
2274 | name_len_target++; /* trailing null */ |
2275 | name_len_target *= 2; | |
50c2f753 | 2276 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2277 | name_len_target = strnlen(fromName, PATH_MAX); |
2278 | name_len_target++; /* trailing null */ | |
2279 | strncpy(data_offset, fromName, name_len_target); | |
2280 | } | |
2281 | ||
2282 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
2283 | /* BB find exact max on data count below from sess*/ | |
2284 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
2285 | pSMB->SetupCount = 1; | |
2286 | pSMB->Reserved3 = 0; | |
2287 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
2288 | byte_count = 3 /* pad */ + params + name_len_target; | |
2289 | pSMB->ParameterCount = cpu_to_le16(params); | |
2290 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
2291 | pSMB->DataCount = cpu_to_le16(name_len_target); | |
2292 | pSMB->TotalDataCount = pSMB->DataCount; | |
2293 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
2294 | pSMB->DataOffset = cpu_to_le16(offset); | |
2295 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_HLINK); | |
2296 | pSMB->Reserved4 = 0; | |
2297 | pSMB->hdr.smb_buf_length += byte_count; | |
2298 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2299 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2300 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 2301 | cifs_stats_inc(&tcon->num_hardlinks); |
1da177e4 LT |
2302 | if (rc) { |
2303 | cFYI(1, ("Send error in SetPathInfo (hard link) = %d", rc)); | |
2304 | } | |
2305 | ||
2306 | cifs_buf_release(pSMB); | |
2307 | if (rc == -EAGAIN) | |
2308 | goto createHardLinkRetry; | |
2309 | ||
2310 | return rc; | |
2311 | } | |
2312 | ||
2313 | int | |
2314 | CIFSCreateHardLink(const int xid, struct cifsTconInfo *tcon, | |
2315 | const char *fromName, const char *toName, | |
737b758c | 2316 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
2317 | { |
2318 | int rc = 0; | |
2319 | NT_RENAME_REQ *pSMB = NULL; | |
2320 | RENAME_RSP *pSMBr = NULL; | |
2321 | int bytes_returned; | |
2322 | int name_len, name_len2; | |
2323 | __u16 count; | |
2324 | ||
2325 | cFYI(1, ("In CIFSCreateHardLink")); | |
2326 | winCreateHardLinkRetry: | |
2327 | ||
2328 | rc = smb_init(SMB_COM_NT_RENAME, 4, tcon, (void **) &pSMB, | |
2329 | (void **) &pSMBr); | |
2330 | if (rc) | |
2331 | return rc; | |
2332 | ||
2333 | pSMB->SearchAttributes = | |
2334 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | | |
2335 | ATTR_DIRECTORY); | |
2336 | pSMB->Flags = cpu_to_le16(CREATE_HARD_LINK); | |
2337 | pSMB->ClusterCount = 0; | |
2338 | ||
2339 | pSMB->BufferFormat = 0x04; | |
2340 | ||
2341 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2342 | name_len = | |
b1a45695 | 2343 | cifsConvertToUCS((__le16 *) pSMB->OldFileName, fromName, |
737b758c | 2344 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2345 | name_len++; /* trailing null */ |
2346 | name_len *= 2; | |
2347 | pSMB->OldFileName[name_len] = 0; /* pad */ | |
50c2f753 | 2348 | pSMB->OldFileName[name_len + 1] = 0x04; |
1da177e4 | 2349 | name_len2 = |
50c2f753 | 2350 | cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2], |
737b758c | 2351 | toName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2352 | name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; |
2353 | name_len2 *= 2; /* convert to bytes */ | |
50c2f753 | 2354 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2355 | name_len = strnlen(fromName, PATH_MAX); |
2356 | name_len++; /* trailing null */ | |
2357 | strncpy(pSMB->OldFileName, fromName, name_len); | |
2358 | name_len2 = strnlen(toName, PATH_MAX); | |
2359 | name_len2++; /* trailing null */ | |
2360 | pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */ | |
2361 | strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2); | |
2362 | name_len2++; /* trailing null */ | |
2363 | name_len2++; /* signature byte */ | |
2364 | } | |
2365 | ||
2366 | count = 1 /* string type byte */ + name_len + name_len2; | |
2367 | pSMB->hdr.smb_buf_length += count; | |
2368 | pSMB->ByteCount = cpu_to_le16(count); | |
2369 | ||
2370 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2371 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 2372 | cifs_stats_inc(&tcon->num_hardlinks); |
1da177e4 LT |
2373 | if (rc) { |
2374 | cFYI(1, ("Send error in hard link (NT rename) = %d", rc)); | |
2375 | } | |
2376 | cifs_buf_release(pSMB); | |
2377 | if (rc == -EAGAIN) | |
2378 | goto winCreateHardLinkRetry; | |
2379 | ||
2380 | return rc; | |
2381 | } | |
2382 | ||
2383 | int | |
2384 | CIFSSMBUnixQuerySymLink(const int xid, struct cifsTconInfo *tcon, | |
2385 | const unsigned char *searchName, | |
2386 | char *symlinkinfo, const int buflen, | |
2387 | const struct nls_table *nls_codepage) | |
2388 | { | |
2389 | /* SMB_QUERY_FILE_UNIX_LINK */ | |
2390 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
2391 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
2392 | int rc = 0; | |
2393 | int bytes_returned; | |
2394 | int name_len; | |
2395 | __u16 params, byte_count; | |
2396 | ||
2397 | cFYI(1, ("In QPathSymLinkInfo (Unix) for path %s", searchName)); | |
2398 | ||
2399 | querySymLinkRetry: | |
2400 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2401 | (void **) &pSMBr); | |
2402 | if (rc) | |
2403 | return rc; | |
2404 | ||
2405 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2406 | name_len = | |
50c2f753 SF |
2407 | cifs_strtoUCS((__le16 *) pSMB->FileName, searchName, |
2408 | PATH_MAX, nls_codepage); | |
1da177e4 LT |
2409 | name_len++; /* trailing null */ |
2410 | name_len *= 2; | |
50c2f753 | 2411 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2412 | name_len = strnlen(searchName, PATH_MAX); |
2413 | name_len++; /* trailing null */ | |
2414 | strncpy(pSMB->FileName, searchName, name_len); | |
2415 | } | |
2416 | ||
2417 | params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ; | |
2418 | pSMB->TotalDataCount = 0; | |
2419 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
2420 | /* BB find exact max data count below from sess structure BB */ | |
2421 | pSMB->MaxDataCount = cpu_to_le16(4000); | |
2422 | pSMB->MaxSetupCount = 0; | |
2423 | pSMB->Reserved = 0; | |
2424 | pSMB->Flags = 0; | |
2425 | pSMB->Timeout = 0; | |
2426 | pSMB->Reserved2 = 0; | |
2427 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 2428 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
1da177e4 LT |
2429 | pSMB->DataCount = 0; |
2430 | pSMB->DataOffset = 0; | |
2431 | pSMB->SetupCount = 1; | |
2432 | pSMB->Reserved3 = 0; | |
2433 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
2434 | byte_count = params + 1 /* pad */ ; | |
2435 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
2436 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2437 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_UNIX_LINK); | |
2438 | pSMB->Reserved4 = 0; | |
2439 | pSMB->hdr.smb_buf_length += byte_count; | |
2440 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2441 | ||
2442 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2443 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2444 | if (rc) { | |
2445 | cFYI(1, ("Send error in QuerySymLinkInfo = %d", rc)); | |
2446 | } else { | |
2447 | /* decode response */ | |
2448 | ||
2449 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
2450 | if (rc || (pSMBr->ByteCount < 2)) | |
2451 | /* BB also check enough total bytes returned */ | |
2452 | rc = -EIO; /* bad smb */ | |
2453 | else { | |
2454 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
2455 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); | |
2456 | ||
2457 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2458 | name_len = UniStrnlen((wchar_t *) ((char *) | |
50c2f753 SF |
2459 | &pSMBr->hdr.Protocol + data_offset), |
2460 | min_t(const int, buflen, count) / 2); | |
737b758c | 2461 | /* BB FIXME investigate remapping reserved chars here */ |
1da177e4 | 2462 | cifs_strfromUCS_le(symlinkinfo, |
50c2f753 SF |
2463 | (__le16 *) ((char *)&pSMBr->hdr.Protocol |
2464 | + data_offset), | |
1da177e4 LT |
2465 | name_len, nls_codepage); |
2466 | } else { | |
2467 | strncpy(symlinkinfo, | |
50c2f753 | 2468 | (char *) &pSMBr->hdr.Protocol + |
1da177e4 LT |
2469 | data_offset, |
2470 | min_t(const int, buflen, count)); | |
2471 | } | |
2472 | symlinkinfo[buflen] = 0; | |
2473 | /* just in case so calling code does not go off the end of buffer */ | |
2474 | } | |
2475 | } | |
2476 | cifs_buf_release(pSMB); | |
2477 | if (rc == -EAGAIN) | |
2478 | goto querySymLinkRetry; | |
2479 | return rc; | |
2480 | } | |
2481 | ||
c9489779 | 2482 | #ifdef CONFIG_CIFS_EXPERIMENTAL |
0a4b92c0 SF |
2483 | /* Initialize NT TRANSACT SMB into small smb request buffer. |
2484 | This assumes that all NT TRANSACTS that we init here have | |
2485 | total parm and data under about 400 bytes (to fit in small cifs | |
2486 | buffer size), which is the case so far, it easily fits. NB: | |
2487 | Setup words themselves and ByteCount | |
2488 | MaxSetupCount (size of returned setup area) and | |
2489 | MaxParameterCount (returned parms size) must be set by caller */ | |
50c2f753 | 2490 | static int |
b9c7a2bb | 2491 | smb_init_nttransact(const __u16 sub_command, const int setup_count, |
0a4b92c0 | 2492 | const int parm_len, struct cifsTconInfo *tcon, |
50c2f753 | 2493 | void **ret_buf) |
0a4b92c0 SF |
2494 | { |
2495 | int rc; | |
2496 | __u32 temp_offset; | |
50c2f753 | 2497 | struct smb_com_ntransact_req *pSMB; |
0a4b92c0 SF |
2498 | |
2499 | rc = small_smb_init(SMB_COM_NT_TRANSACT, 19 + setup_count, tcon, | |
2500 | (void **)&pSMB); | |
2501 | if (rc) | |
2502 | return rc; | |
2503 | *ret_buf = (void *)pSMB; | |
2504 | pSMB->Reserved = 0; | |
2505 | pSMB->TotalParameterCount = cpu_to_le32(parm_len); | |
2506 | pSMB->TotalDataCount = 0; | |
2507 | pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf - | |
2508 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
2509 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2510 | pSMB->DataCount = pSMB->TotalDataCount; | |
2511 | temp_offset = offsetof(struct smb_com_ntransact_req, Parms) + | |
2512 | (setup_count * 2) - 4 /* for rfc1001 length itself */; | |
2513 | pSMB->ParameterOffset = cpu_to_le32(temp_offset); | |
2514 | pSMB->DataOffset = cpu_to_le32(temp_offset + parm_len); | |
2515 | pSMB->SetupCount = setup_count; /* no need to le convert byte fields */ | |
2516 | pSMB->SubCommand = cpu_to_le16(sub_command); | |
2517 | return 0; | |
2518 | } | |
2519 | ||
2520 | static int | |
50c2f753 | 2521 | validate_ntransact(char *buf, char **ppparm, char **ppdata, |
b9c7a2bb | 2522 | __u32 *pparmlen, __u32 *pdatalen) |
0a4b92c0 | 2523 | { |
50c2f753 | 2524 | char *end_of_smb; |
0a4b92c0 | 2525 | __u32 data_count, data_offset, parm_count, parm_offset; |
50c2f753 | 2526 | struct smb_com_ntransact_rsp *pSMBr; |
0a4b92c0 | 2527 | |
630f3f0c SF |
2528 | *pdatalen = 0; |
2529 | *pparmlen = 0; | |
2530 | ||
790fe579 | 2531 | if (buf == NULL) |
0a4b92c0 SF |
2532 | return -EINVAL; |
2533 | ||
2534 | pSMBr = (struct smb_com_ntransact_rsp *)buf; | |
2535 | ||
2536 | /* ByteCount was converted from little endian in SendReceive */ | |
50c2f753 | 2537 | end_of_smb = 2 /* sizeof byte count */ + pSMBr->ByteCount + |
0a4b92c0 SF |
2538 | (char *)&pSMBr->ByteCount; |
2539 | ||
0a4b92c0 SF |
2540 | data_offset = le32_to_cpu(pSMBr->DataOffset); |
2541 | data_count = le32_to_cpu(pSMBr->DataCount); | |
50c2f753 | 2542 | parm_offset = le32_to_cpu(pSMBr->ParameterOffset); |
0a4b92c0 SF |
2543 | parm_count = le32_to_cpu(pSMBr->ParameterCount); |
2544 | ||
2545 | *ppparm = (char *)&pSMBr->hdr.Protocol + parm_offset; | |
2546 | *ppdata = (char *)&pSMBr->hdr.Protocol + data_offset; | |
2547 | ||
2548 | /* should we also check that parm and data areas do not overlap? */ | |
790fe579 SF |
2549 | if (*ppparm > end_of_smb) { |
2550 | cFYI(1, ("parms start after end of smb")); | |
0a4b92c0 | 2551 | return -EINVAL; |
790fe579 SF |
2552 | } else if (parm_count + *ppparm > end_of_smb) { |
2553 | cFYI(1, ("parm end after end of smb")); | |
0a4b92c0 | 2554 | return -EINVAL; |
790fe579 SF |
2555 | } else if (*ppdata > end_of_smb) { |
2556 | cFYI(1, ("data starts after end of smb")); | |
0a4b92c0 | 2557 | return -EINVAL; |
790fe579 | 2558 | } else if (data_count + *ppdata > end_of_smb) { |
26f57364 | 2559 | cFYI(1, ("data %p + count %d (%p) ends after end of smb %p start %p", |
50c2f753 SF |
2560 | *ppdata, data_count, (data_count + *ppdata), |
2561 | end_of_smb, pSMBr)); | |
0a4b92c0 | 2562 | return -EINVAL; |
790fe579 SF |
2563 | } else if (parm_count + data_count > pSMBr->ByteCount) { |
2564 | cFYI(1, ("parm count and data count larger than SMB")); | |
0a4b92c0 SF |
2565 | return -EINVAL; |
2566 | } | |
630f3f0c SF |
2567 | *pdatalen = data_count; |
2568 | *pparmlen = parm_count; | |
0a4b92c0 SF |
2569 | return 0; |
2570 | } | |
c9489779 | 2571 | #endif /* CIFS_EXPERIMENTAL */ |
0a4b92c0 | 2572 | |
1da177e4 LT |
2573 | int |
2574 | CIFSSMBQueryReparseLinkInfo(const int xid, struct cifsTconInfo *tcon, | |
2575 | const unsigned char *searchName, | |
50c2f753 | 2576 | char *symlinkinfo, const int buflen, __u16 fid, |
1da177e4 LT |
2577 | const struct nls_table *nls_codepage) |
2578 | { | |
2579 | int rc = 0; | |
2580 | int bytes_returned; | |
2581 | int name_len; | |
50c2f753 SF |
2582 | struct smb_com_transaction_ioctl_req *pSMB; |
2583 | struct smb_com_transaction_ioctl_rsp *pSMBr; | |
1da177e4 LT |
2584 | |
2585 | cFYI(1, ("In Windows reparse style QueryLink for path %s", searchName)); | |
2586 | rc = smb_init(SMB_COM_NT_TRANSACT, 23, tcon, (void **) &pSMB, | |
2587 | (void **) &pSMBr); | |
2588 | if (rc) | |
2589 | return rc; | |
2590 | ||
2591 | pSMB->TotalParameterCount = 0 ; | |
2592 | pSMB->TotalDataCount = 0; | |
2593 | pSMB->MaxParameterCount = cpu_to_le32(2); | |
2594 | /* BB find exact data count max from sess structure BB */ | |
0a4b92c0 SF |
2595 | pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf - |
2596 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
1da177e4 LT |
2597 | pSMB->MaxSetupCount = 4; |
2598 | pSMB->Reserved = 0; | |
2599 | pSMB->ParameterOffset = 0; | |
2600 | pSMB->DataCount = 0; | |
2601 | pSMB->DataOffset = 0; | |
2602 | pSMB->SetupCount = 4; | |
2603 | pSMB->SubCommand = cpu_to_le16(NT_TRANSACT_IOCTL); | |
2604 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2605 | pSMB->FunctionCode = cpu_to_le32(FSCTL_GET_REPARSE_POINT); | |
2606 | pSMB->IsFsctl = 1; /* FSCTL */ | |
2607 | pSMB->IsRootFlag = 0; | |
2608 | pSMB->Fid = fid; /* file handle always le */ | |
2609 | pSMB->ByteCount = 0; | |
2610 | ||
2611 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2612 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2613 | if (rc) { | |
2614 | cFYI(1, ("Send error in QueryReparseLinkInfo = %d", rc)); | |
2615 | } else { /* decode response */ | |
2616 | __u32 data_offset = le32_to_cpu(pSMBr->DataOffset); | |
2617 | __u32 data_count = le32_to_cpu(pSMBr->DataCount); | |
2618 | if ((pSMBr->ByteCount < 2) || (data_offset > 512)) | |
2619 | /* BB also check enough total bytes returned */ | |
2620 | rc = -EIO; /* bad smb */ | |
2621 | else { | |
790fe579 | 2622 | if (data_count && (data_count < 2048)) { |
50c2f753 | 2623 | char *end_of_smb = 2 /* sizeof byte count */ + |
0a4b92c0 SF |
2624 | pSMBr->ByteCount + |
2625 | (char *)&pSMBr->ByteCount; | |
1da177e4 | 2626 | |
50c2f753 SF |
2627 | struct reparse_data *reparse_buf = |
2628 | (struct reparse_data *) | |
2629 | ((char *)&pSMBr->hdr.Protocol | |
2630 | + data_offset); | |
790fe579 | 2631 | if ((char *)reparse_buf >= end_of_smb) { |
1da177e4 LT |
2632 | rc = -EIO; |
2633 | goto qreparse_out; | |
2634 | } | |
790fe579 | 2635 | if ((reparse_buf->LinkNamesBuf + |
1da177e4 LT |
2636 | reparse_buf->TargetNameOffset + |
2637 | reparse_buf->TargetNameLen) > | |
2638 | end_of_smb) { | |
26f57364 | 2639 | cFYI(1, ("reparse buf beyond SMB")); |
1da177e4 LT |
2640 | rc = -EIO; |
2641 | goto qreparse_out; | |
2642 | } | |
50c2f753 | 2643 | |
1da177e4 LT |
2644 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { |
2645 | name_len = UniStrnlen((wchar_t *) | |
50c2f753 SF |
2646 | (reparse_buf->LinkNamesBuf + |
2647 | reparse_buf->TargetNameOffset), | |
2648 | min(buflen/2, | |
2649 | reparse_buf->TargetNameLen / 2)); | |
1da177e4 | 2650 | cifs_strfromUCS_le(symlinkinfo, |
50c2f753 | 2651 | (__le16 *) (reparse_buf->LinkNamesBuf + |
1da177e4 LT |
2652 | reparse_buf->TargetNameOffset), |
2653 | name_len, nls_codepage); | |
2654 | } else { /* ASCII names */ | |
50c2f753 SF |
2655 | strncpy(symlinkinfo, |
2656 | reparse_buf->LinkNamesBuf + | |
2657 | reparse_buf->TargetNameOffset, | |
2658 | min_t(const int, buflen, | |
2659 | reparse_buf->TargetNameLen)); | |
1da177e4 LT |
2660 | } |
2661 | } else { | |
2662 | rc = -EIO; | |
63135e08 SF |
2663 | cFYI(1, ("Invalid return data count on " |
2664 | "get reparse info ioctl")); | |
1da177e4 LT |
2665 | } |
2666 | symlinkinfo[buflen] = 0; /* just in case so the caller | |
2667 | does not go off the end of the buffer */ | |
50c2f753 | 2668 | cFYI(1, ("readlink result - %s", symlinkinfo)); |
1da177e4 LT |
2669 | } |
2670 | } | |
2671 | qreparse_out: | |
4a6d87f1 | 2672 | cifs_buf_release(pSMB); |
1da177e4 LT |
2673 | |
2674 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
2675 | since file handle passed in no longer valid */ | |
2676 | ||
2677 | return rc; | |
2678 | } | |
2679 | ||
2680 | #ifdef CONFIG_CIFS_POSIX | |
2681 | ||
2682 | /*Convert an Access Control Entry from wire format to local POSIX xattr format*/ | |
50c2f753 SF |
2683 | static void cifs_convert_ace(posix_acl_xattr_entry *ace, |
2684 | struct cifs_posix_ace *cifs_ace) | |
1da177e4 LT |
2685 | { |
2686 | /* u8 cifs fields do not need le conversion */ | |
ff7feac9 SF |
2687 | ace->e_perm = cpu_to_le16(cifs_ace->cifs_e_perm); |
2688 | ace->e_tag = cpu_to_le16(cifs_ace->cifs_e_tag); | |
2689 | ace->e_id = cpu_to_le32(le64_to_cpu(cifs_ace->cifs_uid)); | |
1da177e4 LT |
2690 | /* cFYI(1,("perm %d tag %d id %d",ace->e_perm,ace->e_tag,ace->e_id)); */ |
2691 | ||
2692 | return; | |
2693 | } | |
2694 | ||
2695 | /* Convert ACL from CIFS POSIX wire format to local Linux POSIX ACL xattr */ | |
50c2f753 SF |
2696 | static int cifs_copy_posix_acl(char *trgt, char *src, const int buflen, |
2697 | const int acl_type, const int size_of_data_area) | |
1da177e4 LT |
2698 | { |
2699 | int size = 0; | |
2700 | int i; | |
2701 | __u16 count; | |
50c2f753 SF |
2702 | struct cifs_posix_ace *pACE; |
2703 | struct cifs_posix_acl *cifs_acl = (struct cifs_posix_acl *)src; | |
2704 | posix_acl_xattr_header *local_acl = (posix_acl_xattr_header *)trgt; | |
1da177e4 LT |
2705 | |
2706 | if (le16_to_cpu(cifs_acl->version) != CIFS_ACL_VERSION) | |
2707 | return -EOPNOTSUPP; | |
2708 | ||
790fe579 | 2709 | if (acl_type & ACL_TYPE_ACCESS) { |
1da177e4 LT |
2710 | count = le16_to_cpu(cifs_acl->access_entry_count); |
2711 | pACE = &cifs_acl->ace_array[0]; | |
2712 | size = sizeof(struct cifs_posix_acl); | |
2713 | size += sizeof(struct cifs_posix_ace) * count; | |
2714 | /* check if we would go beyond end of SMB */ | |
790fe579 | 2715 | if (size_of_data_area < size) { |
50c2f753 SF |
2716 | cFYI(1, ("bad CIFS POSIX ACL size %d vs. %d", |
2717 | size_of_data_area, size)); | |
1da177e4 LT |
2718 | return -EINVAL; |
2719 | } | |
790fe579 | 2720 | } else if (acl_type & ACL_TYPE_DEFAULT) { |
1da177e4 LT |
2721 | count = le16_to_cpu(cifs_acl->access_entry_count); |
2722 | size = sizeof(struct cifs_posix_acl); | |
2723 | size += sizeof(struct cifs_posix_ace) * count; | |
2724 | /* skip past access ACEs to get to default ACEs */ | |
2725 | pACE = &cifs_acl->ace_array[count]; | |
2726 | count = le16_to_cpu(cifs_acl->default_entry_count); | |
2727 | size += sizeof(struct cifs_posix_ace) * count; | |
2728 | /* check if we would go beyond end of SMB */ | |
790fe579 | 2729 | if (size_of_data_area < size) |
1da177e4 LT |
2730 | return -EINVAL; |
2731 | } else { | |
2732 | /* illegal type */ | |
2733 | return -EINVAL; | |
2734 | } | |
2735 | ||
2736 | size = posix_acl_xattr_size(count); | |
790fe579 | 2737 | if ((buflen == 0) || (local_acl == NULL)) { |
50c2f753 | 2738 | /* used to query ACL EA size */ |
790fe579 | 2739 | } else if (size > buflen) { |
1da177e4 LT |
2740 | return -ERANGE; |
2741 | } else /* buffer big enough */ { | |
ff7feac9 | 2742 | local_acl->a_version = cpu_to_le32(POSIX_ACL_XATTR_VERSION); |
50c2f753 SF |
2743 | for (i = 0; i < count ; i++) { |
2744 | cifs_convert_ace(&local_acl->a_entries[i], pACE); | |
2745 | pACE++; | |
1da177e4 LT |
2746 | } |
2747 | } | |
2748 | return size; | |
2749 | } | |
2750 | ||
50c2f753 SF |
2751 | static __u16 convert_ace_to_cifs_ace(struct cifs_posix_ace *cifs_ace, |
2752 | const posix_acl_xattr_entry *local_ace) | |
1da177e4 LT |
2753 | { |
2754 | __u16 rc = 0; /* 0 = ACL converted ok */ | |
2755 | ||
ff7feac9 SF |
2756 | cifs_ace->cifs_e_perm = le16_to_cpu(local_ace->e_perm); |
2757 | cifs_ace->cifs_e_tag = le16_to_cpu(local_ace->e_tag); | |
1da177e4 | 2758 | /* BB is there a better way to handle the large uid? */ |
790fe579 | 2759 | if (local_ace->e_id == cpu_to_le32(-1)) { |
1da177e4 LT |
2760 | /* Probably no need to le convert -1 on any arch but can not hurt */ |
2761 | cifs_ace->cifs_uid = cpu_to_le64(-1); | |
50c2f753 | 2762 | } else |
ff7feac9 | 2763 | cifs_ace->cifs_uid = cpu_to_le64(le32_to_cpu(local_ace->e_id)); |
50c2f753 | 2764 | /*cFYI(1,("perm %d tag %d id %d",ace->e_perm,ace->e_tag,ace->e_id));*/ |
1da177e4 LT |
2765 | return rc; |
2766 | } | |
2767 | ||
2768 | /* Convert ACL from local Linux POSIX xattr to CIFS POSIX ACL wire format */ | |
50c2f753 SF |
2769 | static __u16 ACL_to_cifs_posix(char *parm_data, const char *pACL, |
2770 | const int buflen, const int acl_type) | |
1da177e4 LT |
2771 | { |
2772 | __u16 rc = 0; | |
50c2f753 SF |
2773 | struct cifs_posix_acl *cifs_acl = (struct cifs_posix_acl *)parm_data; |
2774 | posix_acl_xattr_header *local_acl = (posix_acl_xattr_header *)pACL; | |
1da177e4 LT |
2775 | int count; |
2776 | int i; | |
2777 | ||
790fe579 | 2778 | if ((buflen == 0) || (pACL == NULL) || (cifs_acl == NULL)) |
1da177e4 LT |
2779 | return 0; |
2780 | ||
2781 | count = posix_acl_xattr_count((size_t)buflen); | |
c18c842b | 2782 | cFYI(1, ("setting acl with %d entries from buf of length %d and " |
63135e08 | 2783 | "version of %d", |
ff7feac9 | 2784 | count, buflen, le32_to_cpu(local_acl->a_version))); |
790fe579 | 2785 | if (le32_to_cpu(local_acl->a_version) != 2) { |
50c2f753 | 2786 | cFYI(1, ("unknown POSIX ACL version %d", |
ff7feac9 | 2787 | le32_to_cpu(local_acl->a_version))); |
1da177e4 LT |
2788 | return 0; |
2789 | } | |
2790 | cifs_acl->version = cpu_to_le16(1); | |
790fe579 | 2791 | if (acl_type == ACL_TYPE_ACCESS) |
ff7feac9 | 2792 | cifs_acl->access_entry_count = cpu_to_le16(count); |
790fe579 | 2793 | else if (acl_type == ACL_TYPE_DEFAULT) |
ff7feac9 | 2794 | cifs_acl->default_entry_count = cpu_to_le16(count); |
1da177e4 | 2795 | else { |
50c2f753 | 2796 | cFYI(1, ("unknown ACL type %d", acl_type)); |
1da177e4 LT |
2797 | return 0; |
2798 | } | |
50c2f753 | 2799 | for (i = 0; i < count; i++) { |
1da177e4 LT |
2800 | rc = convert_ace_to_cifs_ace(&cifs_acl->ace_array[i], |
2801 | &local_acl->a_entries[i]); | |
790fe579 | 2802 | if (rc != 0) { |
1da177e4 LT |
2803 | /* ACE not converted */ |
2804 | break; | |
2805 | } | |
2806 | } | |
790fe579 | 2807 | if (rc == 0) { |
1da177e4 LT |
2808 | rc = (__u16)(count * sizeof(struct cifs_posix_ace)); |
2809 | rc += sizeof(struct cifs_posix_acl); | |
2810 | /* BB add check to make sure ACL does not overflow SMB */ | |
2811 | } | |
2812 | return rc; | |
2813 | } | |
2814 | ||
2815 | int | |
2816 | CIFSSMBGetPosixACL(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 SF |
2817 | const unsigned char *searchName, |
2818 | char *acl_inf, const int buflen, const int acl_type, | |
2819 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
2820 | { |
2821 | /* SMB_QUERY_POSIX_ACL */ | |
2822 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
2823 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
2824 | int rc = 0; | |
2825 | int bytes_returned; | |
2826 | int name_len; | |
2827 | __u16 params, byte_count; | |
50c2f753 | 2828 | |
1da177e4 LT |
2829 | cFYI(1, ("In GetPosixACL (Unix) for path %s", searchName)); |
2830 | ||
2831 | queryAclRetry: | |
2832 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2833 | (void **) &pSMBr); | |
2834 | if (rc) | |
2835 | return rc; | |
50c2f753 | 2836 | |
1da177e4 LT |
2837 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
2838 | name_len = | |
50c2f753 | 2839 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 2840 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2841 | name_len++; /* trailing null */ |
2842 | name_len *= 2; | |
2843 | pSMB->FileName[name_len] = 0; | |
2844 | pSMB->FileName[name_len+1] = 0; | |
50c2f753 | 2845 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2846 | name_len = strnlen(searchName, PATH_MAX); |
2847 | name_len++; /* trailing null */ | |
2848 | strncpy(pSMB->FileName, searchName, name_len); | |
2849 | } | |
2850 | ||
2851 | params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ; | |
2852 | pSMB->TotalDataCount = 0; | |
2853 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
50c2f753 | 2854 | /* BB find exact max data count below from sess structure BB */ |
1da177e4 LT |
2855 | pSMB->MaxDataCount = cpu_to_le16(4000); |
2856 | pSMB->MaxSetupCount = 0; | |
2857 | pSMB->Reserved = 0; | |
2858 | pSMB->Flags = 0; | |
2859 | pSMB->Timeout = 0; | |
2860 | pSMB->Reserved2 = 0; | |
2861 | pSMB->ParameterOffset = cpu_to_le16( | |
50c2f753 SF |
2862 | offsetof(struct smb_com_transaction2_qpi_req, |
2863 | InformationLevel) - 4); | |
1da177e4 LT |
2864 | pSMB->DataCount = 0; |
2865 | pSMB->DataOffset = 0; | |
2866 | pSMB->SetupCount = 1; | |
2867 | pSMB->Reserved3 = 0; | |
2868 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
2869 | byte_count = params + 1 /* pad */ ; | |
2870 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
2871 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2872 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_POSIX_ACL); | |
2873 | pSMB->Reserved4 = 0; | |
2874 | pSMB->hdr.smb_buf_length += byte_count; | |
2875 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2876 | ||
2877 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2878 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
0a4b92c0 | 2879 | cifs_stats_inc(&tcon->num_acl_get); |
1da177e4 LT |
2880 | if (rc) { |
2881 | cFYI(1, ("Send error in Query POSIX ACL = %d", rc)); | |
2882 | } else { | |
2883 | /* decode response */ | |
50c2f753 | 2884 | |
1da177e4 LT |
2885 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
2886 | if (rc || (pSMBr->ByteCount < 2)) | |
2887 | /* BB also check enough total bytes returned */ | |
2888 | rc = -EIO; /* bad smb */ | |
2889 | else { | |
2890 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
2891 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); | |
2892 | rc = cifs_copy_posix_acl(acl_inf, | |
2893 | (char *)&pSMBr->hdr.Protocol+data_offset, | |
50c2f753 | 2894 | buflen, acl_type, count); |
1da177e4 LT |
2895 | } |
2896 | } | |
2897 | cifs_buf_release(pSMB); | |
2898 | if (rc == -EAGAIN) | |
2899 | goto queryAclRetry; | |
2900 | return rc; | |
2901 | } | |
2902 | ||
2903 | int | |
2904 | CIFSSMBSetPosixACL(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 SF |
2905 | const unsigned char *fileName, |
2906 | const char *local_acl, const int buflen, | |
2907 | const int acl_type, | |
2908 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
2909 | { |
2910 | struct smb_com_transaction2_spi_req *pSMB = NULL; | |
2911 | struct smb_com_transaction2_spi_rsp *pSMBr = NULL; | |
2912 | char *parm_data; | |
2913 | int name_len; | |
2914 | int rc = 0; | |
2915 | int bytes_returned = 0; | |
2916 | __u16 params, byte_count, data_count, param_offset, offset; | |
2917 | ||
2918 | cFYI(1, ("In SetPosixACL (Unix) for path %s", fileName)); | |
2919 | setAclRetry: | |
2920 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
50c2f753 | 2921 | (void **) &pSMBr); |
1da177e4 LT |
2922 | if (rc) |
2923 | return rc; | |
2924 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2925 | name_len = | |
50c2f753 | 2926 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 2927 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2928 | name_len++; /* trailing null */ |
2929 | name_len *= 2; | |
50c2f753 | 2930 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2931 | name_len = strnlen(fileName, PATH_MAX); |
2932 | name_len++; /* trailing null */ | |
2933 | strncpy(pSMB->FileName, fileName, name_len); | |
2934 | } | |
2935 | params = 6 + name_len; | |
2936 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
2937 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB size from sess */ | |
2938 | pSMB->MaxSetupCount = 0; | |
2939 | pSMB->Reserved = 0; | |
2940 | pSMB->Flags = 0; | |
2941 | pSMB->Timeout = 0; | |
2942 | pSMB->Reserved2 = 0; | |
2943 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 2944 | InformationLevel) - 4; |
1da177e4 LT |
2945 | offset = param_offset + params; |
2946 | parm_data = ((char *) &pSMB->hdr.Protocol) + offset; | |
2947 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
2948 | ||
2949 | /* convert to on the wire format for POSIX ACL */ | |
50c2f753 | 2950 | data_count = ACL_to_cifs_posix(parm_data, local_acl, buflen, acl_type); |
1da177e4 | 2951 | |
790fe579 | 2952 | if (data_count == 0) { |
1da177e4 LT |
2953 | rc = -EOPNOTSUPP; |
2954 | goto setACLerrorExit; | |
2955 | } | |
2956 | pSMB->DataOffset = cpu_to_le16(offset); | |
2957 | pSMB->SetupCount = 1; | |
2958 | pSMB->Reserved3 = 0; | |
2959 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
2960 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_POSIX_ACL); | |
2961 | byte_count = 3 /* pad */ + params + data_count; | |
2962 | pSMB->DataCount = cpu_to_le16(data_count); | |
2963 | pSMB->TotalDataCount = pSMB->DataCount; | |
2964 | pSMB->ParameterCount = cpu_to_le16(params); | |
2965 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
2966 | pSMB->Reserved4 = 0; | |
2967 | pSMB->hdr.smb_buf_length += byte_count; | |
2968 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2969 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
50c2f753 | 2970 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
1da177e4 LT |
2971 | if (rc) { |
2972 | cFYI(1, ("Set POSIX ACL returned %d", rc)); | |
2973 | } | |
2974 | ||
2975 | setACLerrorExit: | |
2976 | cifs_buf_release(pSMB); | |
2977 | if (rc == -EAGAIN) | |
2978 | goto setAclRetry; | |
2979 | return rc; | |
2980 | } | |
2981 | ||
f654bac2 SF |
2982 | /* BB fix tabs in this function FIXME BB */ |
2983 | int | |
2984 | CIFSGetExtAttr(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 | 2985 | const int netfid, __u64 * pExtAttrBits, __u64 *pMask) |
f654bac2 | 2986 | { |
50c2f753 SF |
2987 | int rc = 0; |
2988 | struct smb_t2_qfi_req *pSMB = NULL; | |
2989 | struct smb_t2_qfi_rsp *pSMBr = NULL; | |
2990 | int bytes_returned; | |
2991 | __u16 params, byte_count; | |
f654bac2 | 2992 | |
790fe579 SF |
2993 | cFYI(1, ("In GetExtAttr")); |
2994 | if (tcon == NULL) | |
2995 | return -ENODEV; | |
f654bac2 SF |
2996 | |
2997 | GetExtAttrRetry: | |
790fe579 SF |
2998 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
2999 | (void **) &pSMBr); | |
3000 | if (rc) | |
3001 | return rc; | |
f654bac2 | 3002 | |
790fe579 SF |
3003 | params = 2 /* level */ +2 /* fid */; |
3004 | pSMB->t2.TotalDataCount = 0; | |
3005 | pSMB->t2.MaxParameterCount = cpu_to_le16(4); | |
3006 | /* BB find exact max data count below from sess structure BB */ | |
3007 | pSMB->t2.MaxDataCount = cpu_to_le16(4000); | |
3008 | pSMB->t2.MaxSetupCount = 0; | |
3009 | pSMB->t2.Reserved = 0; | |
3010 | pSMB->t2.Flags = 0; | |
3011 | pSMB->t2.Timeout = 0; | |
3012 | pSMB->t2.Reserved2 = 0; | |
3013 | pSMB->t2.ParameterOffset = cpu_to_le16(offsetof(struct smb_t2_qfi_req, | |
3014 | Fid) - 4); | |
3015 | pSMB->t2.DataCount = 0; | |
3016 | pSMB->t2.DataOffset = 0; | |
3017 | pSMB->t2.SetupCount = 1; | |
3018 | pSMB->t2.Reserved3 = 0; | |
3019 | pSMB->t2.SubCommand = cpu_to_le16(TRANS2_QUERY_FILE_INFORMATION); | |
3020 | byte_count = params + 1 /* pad */ ; | |
3021 | pSMB->t2.TotalParameterCount = cpu_to_le16(params); | |
3022 | pSMB->t2.ParameterCount = pSMB->t2.TotalParameterCount; | |
3023 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_ATTR_FLAGS); | |
3024 | pSMB->Pad = 0; | |
f654bac2 | 3025 | pSMB->Fid = netfid; |
790fe579 SF |
3026 | pSMB->hdr.smb_buf_length += byte_count; |
3027 | pSMB->t2.ByteCount = cpu_to_le16(byte_count); | |
3028 | ||
3029 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3030 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3031 | if (rc) { | |
3032 | cFYI(1, ("error %d in GetExtAttr", rc)); | |
3033 | } else { | |
3034 | /* decode response */ | |
3035 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3036 | if (rc || (pSMBr->ByteCount < 2)) | |
3037 | /* BB also check enough total bytes returned */ | |
3038 | /* If rc should we check for EOPNOSUPP and | |
3039 | disable the srvino flag? or in caller? */ | |
3040 | rc = -EIO; /* bad smb */ | |
3041 | else { | |
3042 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
3043 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); | |
3044 | struct file_chattr_info *pfinfo; | |
3045 | /* BB Do we need a cast or hash here ? */ | |
3046 | if (count != 16) { | |
3047 | cFYI(1, ("Illegal size ret in GetExtAttr")); | |
3048 | rc = -EIO; | |
3049 | goto GetExtAttrOut; | |
3050 | } | |
3051 | pfinfo = (struct file_chattr_info *) | |
3052 | (data_offset + (char *) &pSMBr->hdr.Protocol); | |
3053 | *pExtAttrBits = le64_to_cpu(pfinfo->mode); | |
f654bac2 | 3054 | *pMask = le64_to_cpu(pfinfo->mask); |
790fe579 SF |
3055 | } |
3056 | } | |
f654bac2 | 3057 | GetExtAttrOut: |
790fe579 SF |
3058 | cifs_buf_release(pSMB); |
3059 | if (rc == -EAGAIN) | |
3060 | goto GetExtAttrRetry; | |
3061 | return rc; | |
f654bac2 SF |
3062 | } |
3063 | ||
f654bac2 | 3064 | #endif /* CONFIG_POSIX */ |
1da177e4 | 3065 | |
297647c2 | 3066 | #ifdef CONFIG_CIFS_EXPERIMENTAL |
0a4b92c0 SF |
3067 | /* Get Security Descriptor (by handle) from remote server for a file or dir */ |
3068 | int | |
3069 | CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid, | |
630f3f0c | 3070 | struct cifs_ntsd **acl_inf, __u32 *pbuflen) |
0a4b92c0 SF |
3071 | { |
3072 | int rc = 0; | |
3073 | int buf_type = 0; | |
3074 | QUERY_SEC_DESC_REQ * pSMB; | |
3075 | struct kvec iov[1]; | |
3076 | ||
3077 | cFYI(1, ("GetCifsACL")); | |
3078 | ||
630f3f0c SF |
3079 | *pbuflen = 0; |
3080 | *acl_inf = NULL; | |
3081 | ||
b9c7a2bb | 3082 | rc = smb_init_nttransact(NT_TRANSACT_QUERY_SECURITY_DESC, 0, |
0a4b92c0 SF |
3083 | 8 /* parm len */, tcon, (void **) &pSMB); |
3084 | if (rc) | |
3085 | return rc; | |
3086 | ||
3087 | pSMB->MaxParameterCount = cpu_to_le32(4); | |
3088 | /* BB TEST with big acls that might need to be e.g. larger than 16K */ | |
3089 | pSMB->MaxSetupCount = 0; | |
3090 | pSMB->Fid = fid; /* file handle always le */ | |
3091 | pSMB->AclFlags = cpu_to_le32(CIFS_ACL_OWNER | CIFS_ACL_GROUP | | |
3092 | CIFS_ACL_DACL); | |
3093 | pSMB->ByteCount = cpu_to_le16(11); /* 3 bytes pad + 8 bytes parm */ | |
3094 | pSMB->hdr.smb_buf_length += 11; | |
3095 | iov[0].iov_base = (char *)pSMB; | |
3096 | iov[0].iov_len = pSMB->hdr.smb_buf_length + 4; | |
3097 | ||
a761ac57 | 3098 | rc = SendReceive2(xid, tcon->ses, iov, 1 /* num iovec */, &buf_type, |
133672ef | 3099 | CIFS_STD_OP); |
0a4b92c0 SF |
3100 | cifs_stats_inc(&tcon->num_acl_get); |
3101 | if (rc) { | |
3102 | cFYI(1, ("Send error in QuerySecDesc = %d", rc)); | |
3103 | } else { /* decode response */ | |
0a4b92c0 | 3104 | __le32 * parm; |
630f3f0c SF |
3105 | __u32 parm_len; |
3106 | __u32 acl_len; | |
50c2f753 | 3107 | struct smb_com_ntransact_rsp *pSMBr; |
630f3f0c | 3108 | char *pdata; |
0a4b92c0 SF |
3109 | |
3110 | /* validate_nttransact */ | |
50c2f753 | 3111 | rc = validate_ntransact(iov[0].iov_base, (char **)&parm, |
630f3f0c | 3112 | &pdata, &parm_len, pbuflen); |
790fe579 | 3113 | if (rc) |
0a4b92c0 SF |
3114 | goto qsec_out; |
3115 | pSMBr = (struct smb_com_ntransact_rsp *)iov[0].iov_base; | |
3116 | ||
630f3f0c | 3117 | cFYI(1, ("smb %p parm %p data %p", pSMBr, parm, *acl_inf)); |
0a4b92c0 SF |
3118 | |
3119 | if (le32_to_cpu(pSMBr->ParameterCount) != 4) { | |
3120 | rc = -EIO; /* bad smb */ | |
630f3f0c | 3121 | *pbuflen = 0; |
0a4b92c0 SF |
3122 | goto qsec_out; |
3123 | } | |
3124 | ||
3125 | /* BB check that data area is minimum length and as big as acl_len */ | |
3126 | ||
af6f4612 | 3127 | acl_len = le32_to_cpu(*parm); |
630f3f0c SF |
3128 | if (acl_len != *pbuflen) { |
3129 | cERROR(1, ("acl length %d does not match %d", | |
3130 | acl_len, *pbuflen)); | |
3131 | if (*pbuflen > acl_len) | |
3132 | *pbuflen = acl_len; | |
3133 | } | |
0a4b92c0 | 3134 | |
630f3f0c SF |
3135 | /* check if buffer is big enough for the acl |
3136 | header followed by the smallest SID */ | |
3137 | if ((*pbuflen < sizeof(struct cifs_ntsd) + 8) || | |
3138 | (*pbuflen >= 64 * 1024)) { | |
3139 | cERROR(1, ("bad acl length %d", *pbuflen)); | |
3140 | rc = -EINVAL; | |
3141 | *pbuflen = 0; | |
3142 | } else { | |
3143 | *acl_inf = kmalloc(*pbuflen, GFP_KERNEL); | |
3144 | if (*acl_inf == NULL) { | |
3145 | *pbuflen = 0; | |
3146 | rc = -ENOMEM; | |
3147 | } | |
3148 | memcpy(*acl_inf, pdata, *pbuflen); | |
3149 | } | |
0a4b92c0 SF |
3150 | } |
3151 | qsec_out: | |
790fe579 | 3152 | if (buf_type == CIFS_SMALL_BUFFER) |
0a4b92c0 | 3153 | cifs_small_buf_release(iov[0].iov_base); |
790fe579 | 3154 | else if (buf_type == CIFS_LARGE_BUFFER) |
0a4b92c0 | 3155 | cifs_buf_release(iov[0].iov_base); |
4b8f930f | 3156 | /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */ |
0a4b92c0 SF |
3157 | return rc; |
3158 | } | |
97837582 SF |
3159 | |
3160 | int | |
3161 | CIFSSMBSetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid, | |
3162 | struct cifs_ntsd *pntsd, __u32 acllen) | |
3163 | { | |
3164 | __u16 byte_count, param_count, data_count, param_offset, data_offset; | |
3165 | int rc = 0; | |
3166 | int bytes_returned = 0; | |
3167 | SET_SEC_DESC_REQ *pSMB = NULL; | |
3168 | NTRANSACT_RSP *pSMBr = NULL; | |
3169 | ||
3170 | setCifsAclRetry: | |
3171 | rc = smb_init(SMB_COM_NT_TRANSACT, 19, tcon, (void **) &pSMB, | |
3172 | (void **) &pSMBr); | |
3173 | if (rc) | |
3174 | return (rc); | |
3175 | ||
3176 | pSMB->MaxSetupCount = 0; | |
3177 | pSMB->Reserved = 0; | |
3178 | ||
3179 | param_count = 8; | |
3180 | param_offset = offsetof(struct smb_com_transaction_ssec_req, Fid) - 4; | |
3181 | data_count = acllen; | |
3182 | data_offset = param_offset + param_count; | |
3183 | byte_count = 3 /* pad */ + param_count; | |
3184 | ||
3185 | pSMB->DataCount = cpu_to_le32(data_count); | |
3186 | pSMB->TotalDataCount = pSMB->DataCount; | |
3187 | pSMB->MaxParameterCount = cpu_to_le32(4); | |
3188 | pSMB->MaxDataCount = cpu_to_le32(16384); | |
3189 | pSMB->ParameterCount = cpu_to_le32(param_count); | |
3190 | pSMB->ParameterOffset = cpu_to_le32(param_offset); | |
3191 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
3192 | pSMB->DataOffset = cpu_to_le32(data_offset); | |
3193 | pSMB->SetupCount = 0; | |
3194 | pSMB->SubCommand = cpu_to_le16(NT_TRANSACT_SET_SECURITY_DESC); | |
3195 | pSMB->ByteCount = cpu_to_le16(byte_count+data_count); | |
3196 | ||
3197 | pSMB->Fid = fid; /* file handle always le */ | |
3198 | pSMB->Reserved2 = 0; | |
3199 | pSMB->AclFlags = cpu_to_le32(CIFS_ACL_DACL); | |
3200 | ||
3201 | if (pntsd && acllen) { | |
3202 | memcpy((char *) &pSMBr->hdr.Protocol + data_offset, | |
3203 | (char *) pntsd, | |
3204 | acllen); | |
3205 | pSMB->hdr.smb_buf_length += (byte_count + data_count); | |
3206 | ||
3207 | } else | |
3208 | pSMB->hdr.smb_buf_length += byte_count; | |
3209 | ||
3210 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3211 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3212 | ||
3213 | cFYI(1, ("SetCIFSACL bytes_returned: %d, rc: %d", bytes_returned, rc)); | |
3214 | if (rc) | |
3215 | cFYI(1, ("Set CIFS ACL returned %d", rc)); | |
3216 | cifs_buf_release(pSMB); | |
3217 | ||
3218 | if (rc == -EAGAIN) | |
3219 | goto setCifsAclRetry; | |
3220 | ||
3221 | return (rc); | |
3222 | } | |
3223 | ||
297647c2 | 3224 | #endif /* CONFIG_CIFS_EXPERIMENTAL */ |
0a4b92c0 | 3225 | |
6b8edfe0 SF |
3226 | /* Legacy Query Path Information call for lookup to old servers such |
3227 | as Win9x/WinME */ | |
3228 | int SMBQueryInformation(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 SF |
3229 | const unsigned char *searchName, |
3230 | FILE_ALL_INFO *pFinfo, | |
3231 | const struct nls_table *nls_codepage, int remap) | |
6b8edfe0 SF |
3232 | { |
3233 | QUERY_INFORMATION_REQ * pSMB; | |
3234 | QUERY_INFORMATION_RSP * pSMBr; | |
3235 | int rc = 0; | |
3236 | int bytes_returned; | |
3237 | int name_len; | |
3238 | ||
50c2f753 | 3239 | cFYI(1, ("In SMBQPath path %s", searchName)); |
6b8edfe0 SF |
3240 | QInfRetry: |
3241 | rc = smb_init(SMB_COM_QUERY_INFORMATION, 0, tcon, (void **) &pSMB, | |
50c2f753 | 3242 | (void **) &pSMBr); |
6b8edfe0 SF |
3243 | if (rc) |
3244 | return rc; | |
3245 | ||
3246 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3247 | name_len = | |
50c2f753 SF |
3248 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
3249 | PATH_MAX, nls_codepage, remap); | |
6b8edfe0 SF |
3250 | name_len++; /* trailing null */ |
3251 | name_len *= 2; | |
50c2f753 | 3252 | } else { |
6b8edfe0 SF |
3253 | name_len = strnlen(searchName, PATH_MAX); |
3254 | name_len++; /* trailing null */ | |
3255 | strncpy(pSMB->FileName, searchName, name_len); | |
3256 | } | |
3257 | pSMB->BufferFormat = 0x04; | |
50c2f753 | 3258 | name_len++; /* account for buffer type byte */ |
6b8edfe0 SF |
3259 | pSMB->hdr.smb_buf_length += (__u16) name_len; |
3260 | pSMB->ByteCount = cpu_to_le16(name_len); | |
3261 | ||
3262 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
50c2f753 | 3263 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
6b8edfe0 SF |
3264 | if (rc) { |
3265 | cFYI(1, ("Send error in QueryInfo = %d", rc)); | |
3266 | } else if (pFinfo) { /* decode response */ | |
1bd5bbcb SF |
3267 | struct timespec ts; |
3268 | __u32 time = le32_to_cpu(pSMBr->last_write_time); | |
3269 | /* BB FIXME - add time zone adjustment BB */ | |
6b8edfe0 | 3270 | memset(pFinfo, 0, sizeof(FILE_ALL_INFO)); |
1bd5bbcb SF |
3271 | ts.tv_nsec = 0; |
3272 | ts.tv_sec = time; | |
3273 | /* decode time fields */ | |
733f99ac | 3274 | pFinfo->ChangeTime = cpu_to_le64(cifs_UnixTimeToNT(ts)); |
1bd5bbcb SF |
3275 | pFinfo->LastWriteTime = pFinfo->ChangeTime; |
3276 | pFinfo->LastAccessTime = 0; | |
70ca734a SF |
3277 | pFinfo->AllocationSize = |
3278 | cpu_to_le64(le32_to_cpu(pSMBr->size)); | |
3279 | pFinfo->EndOfFile = pFinfo->AllocationSize; | |
3280 | pFinfo->Attributes = | |
3281 | cpu_to_le32(le16_to_cpu(pSMBr->attr)); | |
6b8edfe0 SF |
3282 | } else |
3283 | rc = -EIO; /* bad buffer passed in */ | |
3284 | ||
3285 | cifs_buf_release(pSMB); | |
3286 | ||
3287 | if (rc == -EAGAIN) | |
3288 | goto QInfRetry; | |
3289 | ||
3290 | return rc; | |
3291 | } | |
3292 | ||
3293 | ||
3294 | ||
3295 | ||
1da177e4 LT |
3296 | int |
3297 | CIFSSMBQPathInfo(const int xid, struct cifsTconInfo *tcon, | |
3298 | const unsigned char *searchName, | |
3299 | FILE_ALL_INFO * pFindData, | |
acf1a1b1 | 3300 | int legacy /* old style infolevel */, |
737b758c | 3301 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
3302 | { |
3303 | /* level 263 SMB_QUERY_FILE_ALL_INFO */ | |
3304 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
3305 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
3306 | int rc = 0; | |
3307 | int bytes_returned; | |
3308 | int name_len; | |
3309 | __u16 params, byte_count; | |
3310 | ||
3311 | /* cFYI(1, ("In QPathInfo path %s", searchName)); */ | |
3312 | QPathInfoRetry: | |
3313 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3314 | (void **) &pSMBr); | |
3315 | if (rc) | |
3316 | return rc; | |
3317 | ||
3318 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3319 | name_len = | |
50c2f753 | 3320 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 3321 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
3322 | name_len++; /* trailing null */ |
3323 | name_len *= 2; | |
50c2f753 | 3324 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
3325 | name_len = strnlen(searchName, PATH_MAX); |
3326 | name_len++; /* trailing null */ | |
3327 | strncpy(pSMB->FileName, searchName, name_len); | |
3328 | } | |
3329 | ||
50c2f753 | 3330 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */; |
1da177e4 LT |
3331 | pSMB->TotalDataCount = 0; |
3332 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3333 | pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ | |
3334 | pSMB->MaxSetupCount = 0; | |
3335 | pSMB->Reserved = 0; | |
3336 | pSMB->Flags = 0; | |
3337 | pSMB->Timeout = 0; | |
3338 | pSMB->Reserved2 = 0; | |
3339 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 3340 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
1da177e4 LT |
3341 | pSMB->DataCount = 0; |
3342 | pSMB->DataOffset = 0; | |
3343 | pSMB->SetupCount = 1; | |
3344 | pSMB->Reserved3 = 0; | |
3345 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
3346 | byte_count = params + 1 /* pad */ ; | |
3347 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3348 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
790fe579 | 3349 | if (legacy) |
acf1a1b1 SF |
3350 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_STANDARD); |
3351 | else | |
3352 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_ALL_INFO); | |
1da177e4 LT |
3353 | pSMB->Reserved4 = 0; |
3354 | pSMB->hdr.smb_buf_length += byte_count; | |
3355 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3356 | ||
3357 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3358 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3359 | if (rc) { | |
3360 | cFYI(1, ("Send error in QPathInfo = %d", rc)); | |
3361 | } else { /* decode response */ | |
3362 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3363 | ||
acf1a1b1 SF |
3364 | if (rc) /* BB add auto retry on EOPNOTSUPP? */ |
3365 | rc = -EIO; | |
50c2f753 | 3366 | else if (!legacy && (pSMBr->ByteCount < 40)) |
1da177e4 | 3367 | rc = -EIO; /* bad smb */ |
790fe579 | 3368 | else if (legacy && (pSMBr->ByteCount < 24)) |
50c2f753 SF |
3369 | rc = -EIO; /* 24 or 26 expected but we do not read |
3370 | last field */ | |
3371 | else if (pFindData) { | |
acf1a1b1 | 3372 | int size; |
1da177e4 | 3373 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
790fe579 SF |
3374 | if (legacy) /* we do not read the last field, EAsize, |
3375 | fortunately since it varies by subdialect | |
3376 | and on Set vs. Get, is two bytes or 4 | |
3377 | bytes depending but we don't care here */ | |
acf1a1b1 SF |
3378 | size = sizeof(FILE_INFO_STANDARD); |
3379 | else | |
3380 | size = sizeof(FILE_ALL_INFO); | |
1da177e4 LT |
3381 | memcpy((char *) pFindData, |
3382 | (char *) &pSMBr->hdr.Protocol + | |
acf1a1b1 | 3383 | data_offset, size); |
1da177e4 LT |
3384 | } else |
3385 | rc = -ENOMEM; | |
3386 | } | |
3387 | cifs_buf_release(pSMB); | |
3388 | if (rc == -EAGAIN) | |
3389 | goto QPathInfoRetry; | |
3390 | ||
3391 | return rc; | |
3392 | } | |
3393 | ||
3394 | int | |
3395 | CIFSSMBUnixQPathInfo(const int xid, struct cifsTconInfo *tcon, | |
3396 | const unsigned char *searchName, | |
3397 | FILE_UNIX_BASIC_INFO * pFindData, | |
737b758c | 3398 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
3399 | { |
3400 | /* SMB_QUERY_FILE_UNIX_BASIC */ | |
3401 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
3402 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
3403 | int rc = 0; | |
3404 | int bytes_returned = 0; | |
3405 | int name_len; | |
3406 | __u16 params, byte_count; | |
3407 | ||
3408 | cFYI(1, ("In QPathInfo (Unix) the path %s", searchName)); | |
3409 | UnixQPathInfoRetry: | |
3410 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3411 | (void **) &pSMBr); | |
3412 | if (rc) | |
3413 | return rc; | |
3414 | ||
3415 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3416 | name_len = | |
b1a45695 | 3417 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 3418 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
3419 | name_len++; /* trailing null */ |
3420 | name_len *= 2; | |
50c2f753 | 3421 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
3422 | name_len = strnlen(searchName, PATH_MAX); |
3423 | name_len++; /* trailing null */ | |
3424 | strncpy(pSMB->FileName, searchName, name_len); | |
3425 | } | |
3426 | ||
50c2f753 | 3427 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */; |
1da177e4 LT |
3428 | pSMB->TotalDataCount = 0; |
3429 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3430 | /* BB find exact max SMB PDU from sess structure BB */ | |
50c2f753 | 3431 | pSMB->MaxDataCount = cpu_to_le16(4000); |
1da177e4 LT |
3432 | pSMB->MaxSetupCount = 0; |
3433 | pSMB->Reserved = 0; | |
3434 | pSMB->Flags = 0; | |
3435 | pSMB->Timeout = 0; | |
3436 | pSMB->Reserved2 = 0; | |
3437 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 3438 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
1da177e4 LT |
3439 | pSMB->DataCount = 0; |
3440 | pSMB->DataOffset = 0; | |
3441 | pSMB->SetupCount = 1; | |
3442 | pSMB->Reserved3 = 0; | |
3443 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
3444 | byte_count = params + 1 /* pad */ ; | |
3445 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3446 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3447 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_UNIX_BASIC); | |
3448 | pSMB->Reserved4 = 0; | |
3449 | pSMB->hdr.smb_buf_length += byte_count; | |
3450 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3451 | ||
3452 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3453 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3454 | if (rc) { | |
3455 | cFYI(1, ("Send error in QPathInfo = %d", rc)); | |
3456 | } else { /* decode response */ | |
3457 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3458 | ||
3459 | if (rc || (pSMBr->ByteCount < sizeof(FILE_UNIX_BASIC_INFO))) { | |
1e71f25d SF |
3460 | cERROR(1, ("Malformed FILE_UNIX_BASIC_INFO response.\n" |
3461 | "Unix Extensions can be disabled on mount " | |
3462 | "by specifying the nosfu mount option.")); | |
1da177e4 LT |
3463 | rc = -EIO; /* bad smb */ |
3464 | } else { | |
3465 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
3466 | memcpy((char *) pFindData, | |
3467 | (char *) &pSMBr->hdr.Protocol + | |
3468 | data_offset, | |
630f3f0c | 3469 | sizeof(FILE_UNIX_BASIC_INFO)); |
1da177e4 LT |
3470 | } |
3471 | } | |
3472 | cifs_buf_release(pSMB); | |
3473 | if (rc == -EAGAIN) | |
3474 | goto UnixQPathInfoRetry; | |
3475 | ||
3476 | return rc; | |
3477 | } | |
3478 | ||
3479 | #if 0 /* function unused at present */ | |
3480 | int CIFSFindSingle(const int xid, struct cifsTconInfo *tcon, | |
3481 | const char *searchName, FILE_ALL_INFO * findData, | |
3482 | const struct nls_table *nls_codepage) | |
3483 | { | |
3484 | /* level 257 SMB_ */ | |
3485 | TRANSACTION2_FFIRST_REQ *pSMB = NULL; | |
3486 | TRANSACTION2_FFIRST_RSP *pSMBr = NULL; | |
3487 | int rc = 0; | |
3488 | int bytes_returned; | |
3489 | int name_len; | |
3490 | __u16 params, byte_count; | |
3491 | ||
3492 | cFYI(1, ("In FindUnique")); | |
3493 | findUniqueRetry: | |
3494 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3495 | (void **) &pSMBr); | |
3496 | if (rc) | |
3497 | return rc; | |
3498 | ||
3499 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3500 | name_len = | |
50c2f753 SF |
3501 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
3502 | PATH_MAX, nls_codepage); | |
1da177e4 LT |
3503 | name_len++; /* trailing null */ |
3504 | name_len *= 2; | |
50c2f753 | 3505 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
3506 | name_len = strnlen(searchName, PATH_MAX); |
3507 | name_len++; /* trailing null */ | |
3508 | strncpy(pSMB->FileName, searchName, name_len); | |
3509 | } | |
3510 | ||
3511 | params = 12 + name_len /* includes null */ ; | |
3512 | pSMB->TotalDataCount = 0; /* no EAs */ | |
3513 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3514 | pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ | |
3515 | pSMB->MaxSetupCount = 0; | |
3516 | pSMB->Reserved = 0; | |
3517 | pSMB->Flags = 0; | |
3518 | pSMB->Timeout = 0; | |
3519 | pSMB->Reserved2 = 0; | |
3520 | pSMB->ParameterOffset = cpu_to_le16( | |
50c2f753 | 3521 | offsetof(struct smb_com_transaction2_ffirst_req, InformationLevel)-4); |
1da177e4 LT |
3522 | pSMB->DataCount = 0; |
3523 | pSMB->DataOffset = 0; | |
3524 | pSMB->SetupCount = 1; /* one byte, no need to le convert */ | |
3525 | pSMB->Reserved3 = 0; | |
3526 | pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_FIRST); | |
3527 | byte_count = params + 1 /* pad */ ; | |
3528 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3529 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3530 | pSMB->SearchAttributes = | |
3531 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | | |
3532 | ATTR_DIRECTORY); | |
3533 | pSMB->SearchCount = cpu_to_le16(16); /* BB increase */ | |
3534 | pSMB->SearchFlags = cpu_to_le16(1); | |
3535 | pSMB->InformationLevel = cpu_to_le16(SMB_FIND_FILE_DIRECTORY_INFO); | |
3536 | pSMB->SearchStorageType = 0; /* BB what should we set this to? BB */ | |
3537 | pSMB->hdr.smb_buf_length += byte_count; | |
3538 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3539 | ||
3540 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3541 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3542 | ||
3543 | if (rc) { | |
3544 | cFYI(1, ("Send error in FindFileDirInfo = %d", rc)); | |
3545 | } else { /* decode response */ | |
a4544347 | 3546 | cifs_stats_inc(&tcon->num_ffirst); |
1da177e4 LT |
3547 | /* BB fill in */ |
3548 | } | |
3549 | ||
3550 | cifs_buf_release(pSMB); | |
3551 | if (rc == -EAGAIN) | |
3552 | goto findUniqueRetry; | |
3553 | ||
3554 | return rc; | |
3555 | } | |
3556 | #endif /* end unused (temporarily) function */ | |
3557 | ||
3558 | /* xid, tcon, searchName and codepage are input parms, rest are returned */ | |
3559 | int | |
3560 | CIFSFindFirst(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 | 3561 | const char *searchName, |
1da177e4 | 3562 | const struct nls_table *nls_codepage, |
50c2f753 SF |
3563 | __u16 *pnetfid, |
3564 | struct cifs_search_info *psrch_inf, int remap, const char dirsep) | |
1da177e4 LT |
3565 | { |
3566 | /* level 257 SMB_ */ | |
3567 | TRANSACTION2_FFIRST_REQ *pSMB = NULL; | |
3568 | TRANSACTION2_FFIRST_RSP *pSMBr = NULL; | |
3569 | T2_FFIRST_RSP_PARMS * parms; | |
3570 | int rc = 0; | |
3571 | int bytes_returned = 0; | |
3572 | int name_len; | |
3573 | __u16 params, byte_count; | |
3574 | ||
50c2f753 | 3575 | cFYI(1, ("In FindFirst for %s", searchName)); |
1da177e4 LT |
3576 | |
3577 | findFirstRetry: | |
3578 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3579 | (void **) &pSMBr); | |
3580 | if (rc) | |
3581 | return rc; | |
3582 | ||
3583 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3584 | name_len = | |
50c2f753 | 3585 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c SF |
3586 | PATH_MAX, nls_codepage, remap); |
3587 | /* We can not add the asterik earlier in case | |
3588 | it got remapped to 0xF03A as if it were part of the | |
3589 | directory name instead of a wildcard */ | |
1da177e4 | 3590 | name_len *= 2; |
ac67055e | 3591 | pSMB->FileName[name_len] = dirsep; |
737b758c SF |
3592 | pSMB->FileName[name_len+1] = 0; |
3593 | pSMB->FileName[name_len+2] = '*'; | |
3594 | pSMB->FileName[name_len+3] = 0; | |
3595 | name_len += 4; /* now the trailing null */ | |
1da177e4 LT |
3596 | pSMB->FileName[name_len] = 0; /* null terminate just in case */ |
3597 | pSMB->FileName[name_len+1] = 0; | |
737b758c | 3598 | name_len += 2; |
1da177e4 LT |
3599 | } else { /* BB add check for overrun of SMB buf BB */ |
3600 | name_len = strnlen(searchName, PATH_MAX); | |
1da177e4 | 3601 | /* BB fix here and in unicode clause above ie |
790fe579 | 3602 | if (name_len > buffersize-header) |
1da177e4 LT |
3603 | free buffer exit; BB */ |
3604 | strncpy(pSMB->FileName, searchName, name_len); | |
ac67055e | 3605 | pSMB->FileName[name_len] = dirsep; |
68575476 SF |
3606 | pSMB->FileName[name_len+1] = '*'; |
3607 | pSMB->FileName[name_len+2] = 0; | |
3608 | name_len += 3; | |
1da177e4 LT |
3609 | } |
3610 | ||
3611 | params = 12 + name_len /* includes null */ ; | |
3612 | pSMB->TotalDataCount = 0; /* no EAs */ | |
3613 | pSMB->MaxParameterCount = cpu_to_le16(10); | |
3614 | pSMB->MaxDataCount = cpu_to_le16((tcon->ses->server->maxBuf - | |
3615 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
3616 | pSMB->MaxSetupCount = 0; | |
3617 | pSMB->Reserved = 0; | |
3618 | pSMB->Flags = 0; | |
3619 | pSMB->Timeout = 0; | |
3620 | pSMB->Reserved2 = 0; | |
3621 | byte_count = params + 1 /* pad */ ; | |
3622 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3623 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3624 | pSMB->ParameterOffset = cpu_to_le16( | |
88274815 SF |
3625 | offsetof(struct smb_com_transaction2_ffirst_req, SearchAttributes) |
3626 | - 4); | |
1da177e4 LT |
3627 | pSMB->DataCount = 0; |
3628 | pSMB->DataOffset = 0; | |
3629 | pSMB->SetupCount = 1; /* one byte, no need to make endian neutral */ | |
3630 | pSMB->Reserved3 = 0; | |
3631 | pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_FIRST); | |
3632 | pSMB->SearchAttributes = | |
3633 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | | |
3634 | ATTR_DIRECTORY); | |
50c2f753 SF |
3635 | pSMB->SearchCount = cpu_to_le16(CIFSMaxBufSize/sizeof(FILE_UNIX_INFO)); |
3636 | pSMB->SearchFlags = cpu_to_le16(CIFS_SEARCH_CLOSE_AT_END | | |
1da177e4 LT |
3637 | CIFS_SEARCH_RETURN_RESUME); |
3638 | pSMB->InformationLevel = cpu_to_le16(psrch_inf->info_level); | |
3639 | ||
3640 | /* BB what should we set StorageType to? Does it matter? BB */ | |
3641 | pSMB->SearchStorageType = 0; | |
3642 | pSMB->hdr.smb_buf_length += byte_count; | |
3643 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3644 | ||
3645 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3646 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 3647 | cifs_stats_inc(&tcon->num_ffirst); |
1da177e4 | 3648 | |
88274815 SF |
3649 | if (rc) {/* BB add logic to retry regular search if Unix search |
3650 | rejected unexpectedly by server */ | |
1da177e4 LT |
3651 | /* BB Add code to handle unsupported level rc */ |
3652 | cFYI(1, ("Error in FindFirst = %d", rc)); | |
1982c344 | 3653 | |
88274815 | 3654 | cifs_buf_release(pSMB); |
1da177e4 LT |
3655 | |
3656 | /* BB eventually could optimize out free and realloc of buf */ | |
3657 | /* for this case */ | |
3658 | if (rc == -EAGAIN) | |
3659 | goto findFirstRetry; | |
3660 | } else { /* decode response */ | |
3661 | /* BB remember to free buffer if error BB */ | |
3662 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
790fe579 | 3663 | if (rc == 0) { |
1da177e4 LT |
3664 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) |
3665 | psrch_inf->unicode = TRUE; | |
3666 | else | |
3667 | psrch_inf->unicode = FALSE; | |
3668 | ||
3669 | psrch_inf->ntwrk_buf_start = (char *)pSMBr; | |
d47d7c1a | 3670 | psrch_inf->smallBuf = 0; |
50c2f753 SF |
3671 | psrch_inf->srch_entries_start = |
3672 | (char *) &pSMBr->hdr.Protocol + | |
1da177e4 | 3673 | le16_to_cpu(pSMBr->t2.DataOffset); |
1da177e4 LT |
3674 | parms = (T2_FFIRST_RSP_PARMS *)((char *) &pSMBr->hdr.Protocol + |
3675 | le16_to_cpu(pSMBr->t2.ParameterOffset)); | |
3676 | ||
790fe579 | 3677 | if (parms->EndofSearch) |
1da177e4 LT |
3678 | psrch_inf->endOfSearch = TRUE; |
3679 | else | |
3680 | psrch_inf->endOfSearch = FALSE; | |
3681 | ||
50c2f753 SF |
3682 | psrch_inf->entries_in_buffer = |
3683 | le16_to_cpu(parms->SearchCount); | |
60808233 | 3684 | psrch_inf->index_of_last_entry = 2 /* skip . and .. */ + |
1da177e4 | 3685 | psrch_inf->entries_in_buffer; |
1da177e4 LT |
3686 | *pnetfid = parms->SearchHandle; |
3687 | } else { | |
3688 | cifs_buf_release(pSMB); | |
3689 | } | |
3690 | } | |
3691 | ||
3692 | return rc; | |
3693 | } | |
3694 | ||
3695 | int CIFSFindNext(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 | 3696 | __u16 searchHandle, struct cifs_search_info *psrch_inf) |
1da177e4 LT |
3697 | { |
3698 | TRANSACTION2_FNEXT_REQ *pSMB = NULL; | |
3699 | TRANSACTION2_FNEXT_RSP *pSMBr = NULL; | |
3700 | T2_FNEXT_RSP_PARMS * parms; | |
3701 | char *response_data; | |
3702 | int rc = 0; | |
3703 | int bytes_returned, name_len; | |
3704 | __u16 params, byte_count; | |
3705 | ||
3706 | cFYI(1, ("In FindNext")); | |
3707 | ||
790fe579 | 3708 | if (psrch_inf->endOfSearch == TRUE) |
1da177e4 LT |
3709 | return -ENOENT; |
3710 | ||
3711 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3712 | (void **) &pSMBr); | |
3713 | if (rc) | |
3714 | return rc; | |
3715 | ||
50c2f753 | 3716 | params = 14; /* includes 2 bytes of null string, converted to LE below*/ |
1da177e4 LT |
3717 | byte_count = 0; |
3718 | pSMB->TotalDataCount = 0; /* no EAs */ | |
3719 | pSMB->MaxParameterCount = cpu_to_le16(8); | |
3720 | pSMB->MaxDataCount = | |
50c2f753 SF |
3721 | cpu_to_le16((tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) & |
3722 | 0xFFFFFF00); | |
1da177e4 LT |
3723 | pSMB->MaxSetupCount = 0; |
3724 | pSMB->Reserved = 0; | |
3725 | pSMB->Flags = 0; | |
3726 | pSMB->Timeout = 0; | |
3727 | pSMB->Reserved2 = 0; | |
3728 | pSMB->ParameterOffset = cpu_to_le16( | |
3729 | offsetof(struct smb_com_transaction2_fnext_req,SearchHandle) - 4); | |
3730 | pSMB->DataCount = 0; | |
3731 | pSMB->DataOffset = 0; | |
3732 | pSMB->SetupCount = 1; | |
3733 | pSMB->Reserved3 = 0; | |
3734 | pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_NEXT); | |
3735 | pSMB->SearchHandle = searchHandle; /* always kept as le */ | |
3736 | pSMB->SearchCount = | |
630f3f0c | 3737 | cpu_to_le16(CIFSMaxBufSize / sizeof(FILE_UNIX_INFO)); |
1da177e4 LT |
3738 | pSMB->InformationLevel = cpu_to_le16(psrch_inf->info_level); |
3739 | pSMB->ResumeKey = psrch_inf->resume_key; | |
3740 | pSMB->SearchFlags = | |
3741 | cpu_to_le16(CIFS_SEARCH_CLOSE_AT_END | CIFS_SEARCH_RETURN_RESUME); | |
3742 | ||
3743 | name_len = psrch_inf->resume_name_len; | |
3744 | params += name_len; | |
790fe579 | 3745 | if (name_len < PATH_MAX) { |
1da177e4 LT |
3746 | memcpy(pSMB->ResumeFileName, psrch_inf->presume_name, name_len); |
3747 | byte_count += name_len; | |
ef6724e3 SF |
3748 | /* 14 byte parm len above enough for 2 byte null terminator */ |
3749 | pSMB->ResumeFileName[name_len] = 0; | |
3750 | pSMB->ResumeFileName[name_len+1] = 0; | |
1da177e4 LT |
3751 | } else { |
3752 | rc = -EINVAL; | |
3753 | goto FNext2_err_exit; | |
3754 | } | |
3755 | byte_count = params + 1 /* pad */ ; | |
3756 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3757 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3758 | pSMB->hdr.smb_buf_length += byte_count; | |
3759 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
50c2f753 | 3760 | |
1da177e4 LT |
3761 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
3762 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 3763 | cifs_stats_inc(&tcon->num_fnext); |
1da177e4 LT |
3764 | if (rc) { |
3765 | if (rc == -EBADF) { | |
3766 | psrch_inf->endOfSearch = TRUE; | |
50c2f753 | 3767 | rc = 0; /* search probably was closed at end of search*/ |
1da177e4 LT |
3768 | } else |
3769 | cFYI(1, ("FindNext returned = %d", rc)); | |
3770 | } else { /* decode response */ | |
3771 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
50c2f753 | 3772 | |
790fe579 | 3773 | if (rc == 0) { |
1da177e4 LT |
3774 | /* BB fixme add lock for file (srch_info) struct here */ |
3775 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) | |
3776 | psrch_inf->unicode = TRUE; | |
3777 | else | |
3778 | psrch_inf->unicode = FALSE; | |
3779 | response_data = (char *) &pSMBr->hdr.Protocol + | |
3780 | le16_to_cpu(pSMBr->t2.ParameterOffset); | |
3781 | parms = (T2_FNEXT_RSP_PARMS *)response_data; | |
3782 | response_data = (char *)&pSMBr->hdr.Protocol + | |
3783 | le16_to_cpu(pSMBr->t2.DataOffset); | |
790fe579 | 3784 | if (psrch_inf->smallBuf) |
d47d7c1a SF |
3785 | cifs_small_buf_release( |
3786 | psrch_inf->ntwrk_buf_start); | |
3787 | else | |
3788 | cifs_buf_release(psrch_inf->ntwrk_buf_start); | |
1da177e4 LT |
3789 | psrch_inf->srch_entries_start = response_data; |
3790 | psrch_inf->ntwrk_buf_start = (char *)pSMB; | |
d47d7c1a | 3791 | psrch_inf->smallBuf = 0; |
790fe579 | 3792 | if (parms->EndofSearch) |
1da177e4 LT |
3793 | psrch_inf->endOfSearch = TRUE; |
3794 | else | |
3795 | psrch_inf->endOfSearch = FALSE; | |
50c2f753 SF |
3796 | psrch_inf->entries_in_buffer = |
3797 | le16_to_cpu(parms->SearchCount); | |
1da177e4 LT |
3798 | psrch_inf->index_of_last_entry += |
3799 | psrch_inf->entries_in_buffer; | |
50c2f753 SF |
3800 | /* cFYI(1,("fnxt2 entries in buf %d index_of_last %d", |
3801 | psrch_inf->entries_in_buffer, psrch_inf->index_of_last_entry)); */ | |
1da177e4 LT |
3802 | |
3803 | /* BB fixme add unlock here */ | |
3804 | } | |
3805 | ||
3806 | } | |
3807 | ||
3808 | /* BB On error, should we leave previous search buf (and count and | |
3809 | last entry fields) intact or free the previous one? */ | |
3810 | ||
3811 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
3812 | since file handle passed in no longer valid */ | |
3813 | FNext2_err_exit: | |
3814 | if (rc != 0) | |
3815 | cifs_buf_release(pSMB); | |
1da177e4 LT |
3816 | return rc; |
3817 | } | |
3818 | ||
3819 | int | |
50c2f753 SF |
3820 | CIFSFindClose(const int xid, struct cifsTconInfo *tcon, |
3821 | const __u16 searchHandle) | |
1da177e4 LT |
3822 | { |
3823 | int rc = 0; | |
3824 | FINDCLOSE_REQ *pSMB = NULL; | |
1da177e4 LT |
3825 | |
3826 | cFYI(1, ("In CIFSSMBFindClose")); | |
3827 | rc = small_smb_init(SMB_COM_FIND_CLOSE2, 1, tcon, (void **)&pSMB); | |
3828 | ||
3829 | /* no sense returning error if session restarted | |
3830 | as file handle has been closed */ | |
790fe579 | 3831 | if (rc == -EAGAIN) |
1da177e4 LT |
3832 | return 0; |
3833 | if (rc) | |
3834 | return rc; | |
3835 | ||
1da177e4 LT |
3836 | pSMB->FileID = searchHandle; |
3837 | pSMB->ByteCount = 0; | |
133672ef | 3838 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); |
1da177e4 LT |
3839 | if (rc) { |
3840 | cERROR(1, ("Send error in FindClose = %d", rc)); | |
3841 | } | |
a4544347 | 3842 | cifs_stats_inc(&tcon->num_fclose); |
1da177e4 LT |
3843 | |
3844 | /* Since session is dead, search handle closed on server already */ | |
3845 | if (rc == -EAGAIN) | |
3846 | rc = 0; | |
3847 | ||
3848 | return rc; | |
3849 | } | |
3850 | ||
1da177e4 LT |
3851 | int |
3852 | CIFSGetSrvInodeNumber(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 SF |
3853 | const unsigned char *searchName, |
3854 | __u64 * inode_number, | |
3855 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
3856 | { |
3857 | int rc = 0; | |
3858 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
3859 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
3860 | int name_len, bytes_returned; | |
3861 | __u16 params, byte_count; | |
3862 | ||
50c2f753 | 3863 | cFYI(1, ("In GetSrvInodeNum for %s", searchName)); |
790fe579 | 3864 | if (tcon == NULL) |
50c2f753 | 3865 | return -ENODEV; |
1da177e4 LT |
3866 | |
3867 | GetInodeNumberRetry: | |
3868 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
50c2f753 | 3869 | (void **) &pSMBr); |
1da177e4 LT |
3870 | if (rc) |
3871 | return rc; | |
3872 | ||
1da177e4 LT |
3873 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
3874 | name_len = | |
b1a45695 | 3875 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
50c2f753 | 3876 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
3877 | name_len++; /* trailing null */ |
3878 | name_len *= 2; | |
50c2f753 | 3879 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
3880 | name_len = strnlen(searchName, PATH_MAX); |
3881 | name_len++; /* trailing null */ | |
3882 | strncpy(pSMB->FileName, searchName, name_len); | |
3883 | } | |
3884 | ||
3885 | params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ; | |
3886 | pSMB->TotalDataCount = 0; | |
3887 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3888 | /* BB find exact max data count below from sess structure BB */ | |
3889 | pSMB->MaxDataCount = cpu_to_le16(4000); | |
3890 | pSMB->MaxSetupCount = 0; | |
3891 | pSMB->Reserved = 0; | |
3892 | pSMB->Flags = 0; | |
3893 | pSMB->Timeout = 0; | |
3894 | pSMB->Reserved2 = 0; | |
3895 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 3896 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
1da177e4 LT |
3897 | pSMB->DataCount = 0; |
3898 | pSMB->DataOffset = 0; | |
3899 | pSMB->SetupCount = 1; | |
3900 | pSMB->Reserved3 = 0; | |
3901 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
3902 | byte_count = params + 1 /* pad */ ; | |
3903 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3904 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3905 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_INTERNAL_INFO); | |
3906 | pSMB->Reserved4 = 0; | |
3907 | pSMB->hdr.smb_buf_length += byte_count; | |
3908 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3909 | ||
3910 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3911 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3912 | if (rc) { | |
3913 | cFYI(1, ("error %d in QueryInternalInfo", rc)); | |
3914 | } else { | |
3915 | /* decode response */ | |
3916 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3917 | if (rc || (pSMBr->ByteCount < 2)) | |
3918 | /* BB also check enough total bytes returned */ | |
3919 | /* If rc should we check for EOPNOSUPP and | |
3920 | disable the srvino flag? or in caller? */ | |
3921 | rc = -EIO; /* bad smb */ | |
50c2f753 | 3922 | else { |
1da177e4 LT |
3923 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
3924 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); | |
50c2f753 | 3925 | struct file_internal_info *pfinfo; |
1da177e4 | 3926 | /* BB Do we need a cast or hash here ? */ |
790fe579 | 3927 | if (count < 8) { |
1da177e4 LT |
3928 | cFYI(1, ("Illegal size ret in QryIntrnlInf")); |
3929 | rc = -EIO; | |
3930 | goto GetInodeNumOut; | |
3931 | } | |
3932 | pfinfo = (struct file_internal_info *) | |
3933 | (data_offset + (char *) &pSMBr->hdr.Protocol); | |
3934 | *inode_number = pfinfo->UniqueId; | |
3935 | } | |
3936 | } | |
3937 | GetInodeNumOut: | |
3938 | cifs_buf_release(pSMB); | |
3939 | if (rc == -EAGAIN) | |
3940 | goto GetInodeNumberRetry; | |
3941 | return rc; | |
3942 | } | |
1da177e4 LT |
3943 | |
3944 | int | |
3945 | CIFSGetDFSRefer(const int xid, struct cifsSesInfo *ses, | |
3946 | const unsigned char *searchName, | |
3947 | unsigned char **targetUNCs, | |
3948 | unsigned int *number_of_UNC_in_array, | |
737b758c | 3949 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
3950 | { |
3951 | /* TRANS2_GET_DFS_REFERRAL */ | |
3952 | TRANSACTION2_GET_DFS_REFER_REQ *pSMB = NULL; | |
3953 | TRANSACTION2_GET_DFS_REFER_RSP *pSMBr = NULL; | |
50c2f753 | 3954 | struct dfs_referral_level_3 *referrals = NULL; |
1da177e4 LT |
3955 | int rc = 0; |
3956 | int bytes_returned; | |
3957 | int name_len; | |
3958 | unsigned int i; | |
50c2f753 | 3959 | char *temp; |
1da177e4 LT |
3960 | __u16 params, byte_count; |
3961 | *number_of_UNC_in_array = 0; | |
3962 | *targetUNCs = NULL; | |
3963 | ||
3964 | cFYI(1, ("In GetDFSRefer the path %s", searchName)); | |
3965 | if (ses == NULL) | |
3966 | return -ENODEV; | |
3967 | getDFSRetry: | |
3968 | rc = smb_init(SMB_COM_TRANSACTION2, 15, NULL, (void **) &pSMB, | |
3969 | (void **) &pSMBr); | |
3970 | if (rc) | |
3971 | return rc; | |
50c2f753 SF |
3972 | |
3973 | /* server pointer checked in called function, | |
1982c344 SF |
3974 | but should never be null here anyway */ |
3975 | pSMB->hdr.Mid = GetNextMid(ses->server); | |
1da177e4 LT |
3976 | pSMB->hdr.Tid = ses->ipc_tid; |
3977 | pSMB->hdr.Uid = ses->Suid; | |
26f57364 | 3978 | if (ses->capabilities & CAP_STATUS32) |
1da177e4 | 3979 | pSMB->hdr.Flags2 |= SMBFLG2_ERR_STATUS; |
26f57364 | 3980 | if (ses->capabilities & CAP_DFS) |
1da177e4 | 3981 | pSMB->hdr.Flags2 |= SMBFLG2_DFS; |
1da177e4 LT |
3982 | |
3983 | if (ses->capabilities & CAP_UNICODE) { | |
3984 | pSMB->hdr.Flags2 |= SMBFLG2_UNICODE; | |
3985 | name_len = | |
b1a45695 | 3986 | cifsConvertToUCS((__le16 *) pSMB->RequestFileName, |
737b758c | 3987 | searchName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
3988 | name_len++; /* trailing null */ |
3989 | name_len *= 2; | |
50c2f753 | 3990 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
3991 | name_len = strnlen(searchName, PATH_MAX); |
3992 | name_len++; /* trailing null */ | |
3993 | strncpy(pSMB->RequestFileName, searchName, name_len); | |
3994 | } | |
3995 | ||
790fe579 SF |
3996 | if (ses->server) { |
3997 | if (ses->server->secMode & | |
1a4e15a0 SF |
3998 | (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) |
3999 | pSMB->hdr.Flags2 |= SMBFLG2_SECURITY_SIGNATURE; | |
4000 | } | |
4001 | ||
50c2f753 | 4002 | pSMB->hdr.Uid = ses->Suid; |
1a4e15a0 | 4003 | |
1da177e4 LT |
4004 | params = 2 /* level */ + name_len /*includes null */ ; |
4005 | pSMB->TotalDataCount = 0; | |
4006 | pSMB->DataCount = 0; | |
4007 | pSMB->DataOffset = 0; | |
4008 | pSMB->MaxParameterCount = 0; | |
4009 | pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ | |
4010 | pSMB->MaxSetupCount = 0; | |
4011 | pSMB->Reserved = 0; | |
4012 | pSMB->Flags = 0; | |
4013 | pSMB->Timeout = 0; | |
4014 | pSMB->Reserved2 = 0; | |
4015 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 4016 | struct smb_com_transaction2_get_dfs_refer_req, MaxReferralLevel) - 4); |
1da177e4 LT |
4017 | pSMB->SetupCount = 1; |
4018 | pSMB->Reserved3 = 0; | |
4019 | pSMB->SubCommand = cpu_to_le16(TRANS2_GET_DFS_REFERRAL); | |
4020 | byte_count = params + 3 /* pad */ ; | |
4021 | pSMB->ParameterCount = cpu_to_le16(params); | |
4022 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4023 | pSMB->MaxReferralLevel = cpu_to_le16(3); | |
4024 | pSMB->hdr.smb_buf_length += byte_count; | |
4025 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4026 | ||
4027 | rc = SendReceive(xid, ses, (struct smb_hdr *) pSMB, | |
4028 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4029 | if (rc) { | |
4030 | cFYI(1, ("Send error in GetDFSRefer = %d", rc)); | |
4031 | } else { /* decode response */ | |
4032 | /* BB Add logic to parse referrals here */ | |
4033 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4034 | ||
50c2f753 SF |
4035 | /* BB Also check if enough total bytes returned? */ |
4036 | if (rc || (pSMBr->ByteCount < 17)) | |
1da177e4 LT |
4037 | rc = -EIO; /* bad smb */ |
4038 | else { | |
50c2f753 | 4039 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
1da177e4 LT |
4040 | __u16 data_count = le16_to_cpu(pSMBr->t2.DataCount); |
4041 | ||
4042 | cFYI(1, | |
50c2f753 | 4043 | ("Decoding GetDFSRefer response BCC: %d Offset %d", |
1da177e4 | 4044 | pSMBr->ByteCount, data_offset)); |
50c2f753 SF |
4045 | referrals = |
4046 | (struct dfs_referral_level_3 *) | |
1da177e4 LT |
4047 | (8 /* sizeof start of data block */ + |
4048 | data_offset + | |
50c2f753 | 4049 | (char *) &pSMBr->hdr.Protocol); |
c18c842b | 4050 | cFYI(1, ("num_referrals: %d dfs flags: 0x%x ... \n" |
63135e08 SF |
4051 | "for referral one refer size: 0x%x srv " |
4052 | "type: 0x%x refer flags: 0x%x ttl: 0x%x", | |
50c2f753 SF |
4053 | le16_to_cpu(pSMBr->NumberOfReferrals), |
4054 | le16_to_cpu(pSMBr->DFSFlags), | |
4055 | le16_to_cpu(referrals->ReferralSize), | |
4056 | le16_to_cpu(referrals->ServerType), | |
4057 | le16_to_cpu(referrals->ReferralFlags), | |
4058 | le16_to_cpu(referrals->TimeToLive))); | |
1da177e4 LT |
4059 | /* BB This field is actually two bytes in from start of |
4060 | data block so we could do safety check that DataBlock | |
4061 | begins at address of pSMBr->NumberOfReferrals */ | |
50c2f753 SF |
4062 | *number_of_UNC_in_array = |
4063 | le16_to_cpu(pSMBr->NumberOfReferrals); | |
1da177e4 LT |
4064 | |
4065 | /* BB Fix below so can return more than one referral */ | |
790fe579 | 4066 | if (*number_of_UNC_in_array > 1) |
1da177e4 LT |
4067 | *number_of_UNC_in_array = 1; |
4068 | ||
4069 | /* get the length of the strings describing refs */ | |
4070 | name_len = 0; | |
50c2f753 | 4071 | for (i = 0; i < *number_of_UNC_in_array; i++) { |
1da177e4 | 4072 | /* make sure that DfsPathOffset not past end */ |
50c2f753 SF |
4073 | __u16 offset = |
4074 | le16_to_cpu(referrals->DfsPathOffset); | |
1da177e4 | 4075 | if (offset > data_count) { |
50c2f753 | 4076 | /* if invalid referral, stop here and do |
1da177e4 LT |
4077 | not try to copy any more */ |
4078 | *number_of_UNC_in_array = i; | |
4079 | break; | |
50c2f753 | 4080 | } |
1da177e4 LT |
4081 | temp = ((char *)referrals) + offset; |
4082 | ||
4083 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { | |
50c2f753 SF |
4084 | name_len += UniStrnlen((wchar_t *)temp, |
4085 | data_count); | |
1da177e4 | 4086 | } else { |
50c2f753 | 4087 | name_len += strnlen(temp, data_count); |
1da177e4 LT |
4088 | } |
4089 | referrals++; | |
50c2f753 SF |
4090 | /* BB add check that referral pointer does |
4091 | not fall off end PDU */ | |
1da177e4 LT |
4092 | } |
4093 | /* BB add check for name_len bigger than bcc */ | |
50c2f753 SF |
4094 | *targetUNCs = |
4095 | kmalloc(name_len+1+(*number_of_UNC_in_array), | |
4096 | GFP_KERNEL); | |
790fe579 | 4097 | if (*targetUNCs == NULL) { |
1da177e4 LT |
4098 | rc = -ENOMEM; |
4099 | goto GetDFSRefExit; | |
4100 | } | |
4101 | /* copy the ref strings */ | |
50c2f753 SF |
4102 | referrals = (struct dfs_referral_level_3 *) |
4103 | (8 /* sizeof data hdr */ + data_offset + | |
1da177e4 LT |
4104 | (char *) &pSMBr->hdr.Protocol); |
4105 | ||
50c2f753 SF |
4106 | for (i = 0; i < *number_of_UNC_in_array; i++) { |
4107 | temp = ((char *)referrals) + | |
4108 | le16_to_cpu(referrals->DfsPathOffset); | |
1da177e4 LT |
4109 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { |
4110 | cifs_strfromUCS_le(*targetUNCs, | |
50c2f753 SF |
4111 | (__le16 *) temp, |
4112 | name_len, | |
4113 | nls_codepage); | |
1da177e4 | 4114 | } else { |
50c2f753 | 4115 | strncpy(*targetUNCs, temp, name_len); |
1da177e4 LT |
4116 | } |
4117 | /* BB update target_uncs pointers */ | |
4118 | referrals++; | |
4119 | } | |
4120 | temp = *targetUNCs; | |
4121 | temp[name_len] = 0; | |
4122 | } | |
4123 | ||
4124 | } | |
4125 | GetDFSRefExit: | |
4126 | if (pSMB) | |
4127 | cifs_buf_release(pSMB); | |
4128 | ||
4129 | if (rc == -EAGAIN) | |
4130 | goto getDFSRetry; | |
4131 | ||
4132 | return rc; | |
4133 | } | |
4134 | ||
20962438 SF |
4135 | /* Query File System Info such as free space to old servers such as Win 9x */ |
4136 | int | |
4137 | SMBOldQFSInfo(const int xid, struct cifsTconInfo *tcon, struct kstatfs *FSData) | |
4138 | { | |
4139 | /* level 0x01 SMB_QUERY_FILE_SYSTEM_INFO */ | |
4140 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4141 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4142 | FILE_SYSTEM_ALLOC_INFO *response_data; | |
4143 | int rc = 0; | |
4144 | int bytes_returned = 0; | |
4145 | __u16 params, byte_count; | |
4146 | ||
4147 | cFYI(1, ("OldQFSInfo")); | |
4148 | oldQFSInfoRetry: | |
4149 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4150 | (void **) &pSMBr); | |
4151 | if (rc) | |
4152 | return rc; | |
20962438 SF |
4153 | |
4154 | params = 2; /* level */ | |
4155 | pSMB->TotalDataCount = 0; | |
4156 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4157 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
4158 | pSMB->MaxSetupCount = 0; | |
4159 | pSMB->Reserved = 0; | |
4160 | pSMB->Flags = 0; | |
4161 | pSMB->Timeout = 0; | |
4162 | pSMB->Reserved2 = 0; | |
4163 | byte_count = params + 1 /* pad */ ; | |
4164 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
4165 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
4166 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
4167 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
4168 | pSMB->DataCount = 0; | |
4169 | pSMB->DataOffset = 0; | |
4170 | pSMB->SetupCount = 1; | |
4171 | pSMB->Reserved3 = 0; | |
4172 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4173 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_ALLOCATION); | |
4174 | pSMB->hdr.smb_buf_length += byte_count; | |
4175 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4176 | ||
4177 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4178 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4179 | if (rc) { | |
4180 | cFYI(1, ("Send error in QFSInfo = %d", rc)); | |
4181 | } else { /* decode response */ | |
4182 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4183 | ||
4184 | if (rc || (pSMBr->ByteCount < 18)) | |
4185 | rc = -EIO; /* bad smb */ | |
4186 | else { | |
4187 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
50c2f753 | 4188 | cFYI(1, ("qfsinf resp BCC: %d Offset %d", |
20962438 SF |
4189 | pSMBr->ByteCount, data_offset)); |
4190 | ||
50c2f753 | 4191 | response_data = (FILE_SYSTEM_ALLOC_INFO *) |
20962438 SF |
4192 | (((char *) &pSMBr->hdr.Protocol) + data_offset); |
4193 | FSData->f_bsize = | |
4194 | le16_to_cpu(response_data->BytesPerSector) * | |
4195 | le32_to_cpu(response_data-> | |
4196 | SectorsPerAllocationUnit); | |
4197 | FSData->f_blocks = | |
50c2f753 | 4198 | le32_to_cpu(response_data->TotalAllocationUnits); |
20962438 SF |
4199 | FSData->f_bfree = FSData->f_bavail = |
4200 | le32_to_cpu(response_data->FreeAllocationUnits); | |
4201 | cFYI(1, | |
4202 | ("Blocks: %lld Free: %lld Block size %ld", | |
4203 | (unsigned long long)FSData->f_blocks, | |
4204 | (unsigned long long)FSData->f_bfree, | |
4205 | FSData->f_bsize)); | |
4206 | } | |
4207 | } | |
4208 | cifs_buf_release(pSMB); | |
4209 | ||
4210 | if (rc == -EAGAIN) | |
4211 | goto oldQFSInfoRetry; | |
4212 | ||
4213 | return rc; | |
4214 | } | |
4215 | ||
1da177e4 | 4216 | int |
737b758c | 4217 | CIFSSMBQFSInfo(const int xid, struct cifsTconInfo *tcon, struct kstatfs *FSData) |
1da177e4 LT |
4218 | { |
4219 | /* level 0x103 SMB_QUERY_FILE_SYSTEM_INFO */ | |
4220 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4221 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4222 | FILE_SYSTEM_INFO *response_data; | |
4223 | int rc = 0; | |
4224 | int bytes_returned = 0; | |
4225 | __u16 params, byte_count; | |
4226 | ||
4227 | cFYI(1, ("In QFSInfo")); | |
4228 | QFSInfoRetry: | |
4229 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4230 | (void **) &pSMBr); | |
4231 | if (rc) | |
4232 | return rc; | |
4233 | ||
4234 | params = 2; /* level */ | |
4235 | pSMB->TotalDataCount = 0; | |
4236 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
20962438 | 4237 | pSMB->MaxDataCount = cpu_to_le16(1000); |
1da177e4 LT |
4238 | pSMB->MaxSetupCount = 0; |
4239 | pSMB->Reserved = 0; | |
4240 | pSMB->Flags = 0; | |
4241 | pSMB->Timeout = 0; | |
4242 | pSMB->Reserved2 = 0; | |
4243 | byte_count = params + 1 /* pad */ ; | |
4244 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
4245 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
4246 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 4247 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); |
1da177e4 LT |
4248 | pSMB->DataCount = 0; |
4249 | pSMB->DataOffset = 0; | |
4250 | pSMB->SetupCount = 1; | |
4251 | pSMB->Reserved3 = 0; | |
4252 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4253 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_SIZE_INFO); | |
4254 | pSMB->hdr.smb_buf_length += byte_count; | |
4255 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4256 | ||
4257 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4258 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4259 | if (rc) { | |
20962438 | 4260 | cFYI(1, ("Send error in QFSInfo = %d", rc)); |
1da177e4 | 4261 | } else { /* decode response */ |
50c2f753 | 4262 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
1da177e4 | 4263 | |
20962438 | 4264 | if (rc || (pSMBr->ByteCount < 24)) |
1da177e4 LT |
4265 | rc = -EIO; /* bad smb */ |
4266 | else { | |
4267 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
1da177e4 LT |
4268 | |
4269 | response_data = | |
4270 | (FILE_SYSTEM_INFO | |
4271 | *) (((char *) &pSMBr->hdr.Protocol) + | |
4272 | data_offset); | |
4273 | FSData->f_bsize = | |
4274 | le32_to_cpu(response_data->BytesPerSector) * | |
4275 | le32_to_cpu(response_data-> | |
4276 | SectorsPerAllocationUnit); | |
4277 | FSData->f_blocks = | |
4278 | le64_to_cpu(response_data->TotalAllocationUnits); | |
4279 | FSData->f_bfree = FSData->f_bavail = | |
4280 | le64_to_cpu(response_data->FreeAllocationUnits); | |
4281 | cFYI(1, | |
4282 | ("Blocks: %lld Free: %lld Block size %ld", | |
4283 | (unsigned long long)FSData->f_blocks, | |
4284 | (unsigned long long)FSData->f_bfree, | |
4285 | FSData->f_bsize)); | |
4286 | } | |
4287 | } | |
4288 | cifs_buf_release(pSMB); | |
4289 | ||
4290 | if (rc == -EAGAIN) | |
4291 | goto QFSInfoRetry; | |
4292 | ||
4293 | return rc; | |
4294 | } | |
4295 | ||
4296 | int | |
737b758c | 4297 | CIFSSMBQFSAttributeInfo(const int xid, struct cifsTconInfo *tcon) |
1da177e4 LT |
4298 | { |
4299 | /* level 0x105 SMB_QUERY_FILE_SYSTEM_INFO */ | |
4300 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4301 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4302 | FILE_SYSTEM_ATTRIBUTE_INFO *response_data; | |
4303 | int rc = 0; | |
4304 | int bytes_returned = 0; | |
4305 | __u16 params, byte_count; | |
4306 | ||
4307 | cFYI(1, ("In QFSAttributeInfo")); | |
4308 | QFSAttributeRetry: | |
4309 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4310 | (void **) &pSMBr); | |
4311 | if (rc) | |
4312 | return rc; | |
4313 | ||
4314 | params = 2; /* level */ | |
4315 | pSMB->TotalDataCount = 0; | |
4316 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4317 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find exact max SMB PDU from sess structure BB */ | |
4318 | pSMB->MaxSetupCount = 0; | |
4319 | pSMB->Reserved = 0; | |
4320 | pSMB->Flags = 0; | |
4321 | pSMB->Timeout = 0; | |
4322 | pSMB->Reserved2 = 0; | |
4323 | byte_count = params + 1 /* pad */ ; | |
4324 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
4325 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
4326 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 4327 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); |
1da177e4 LT |
4328 | pSMB->DataCount = 0; |
4329 | pSMB->DataOffset = 0; | |
4330 | pSMB->SetupCount = 1; | |
4331 | pSMB->Reserved3 = 0; | |
4332 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4333 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_ATTRIBUTE_INFO); | |
4334 | pSMB->hdr.smb_buf_length += byte_count; | |
4335 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4336 | ||
4337 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4338 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4339 | if (rc) { | |
4340 | cERROR(1, ("Send error in QFSAttributeInfo = %d", rc)); | |
4341 | } else { /* decode response */ | |
4342 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4343 | ||
50c2f753 SF |
4344 | if (rc || (pSMBr->ByteCount < 13)) { |
4345 | /* BB also check if enough bytes returned */ | |
1da177e4 LT |
4346 | rc = -EIO; /* bad smb */ |
4347 | } else { | |
4348 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
4349 | response_data = | |
4350 | (FILE_SYSTEM_ATTRIBUTE_INFO | |
4351 | *) (((char *) &pSMBr->hdr.Protocol) + | |
4352 | data_offset); | |
4353 | memcpy(&tcon->fsAttrInfo, response_data, | |
26f57364 | 4354 | sizeof(FILE_SYSTEM_ATTRIBUTE_INFO)); |
1da177e4 LT |
4355 | } |
4356 | } | |
4357 | cifs_buf_release(pSMB); | |
4358 | ||
4359 | if (rc == -EAGAIN) | |
4360 | goto QFSAttributeRetry; | |
4361 | ||
4362 | return rc; | |
4363 | } | |
4364 | ||
4365 | int | |
737b758c | 4366 | CIFSSMBQFSDeviceInfo(const int xid, struct cifsTconInfo *tcon) |
1da177e4 LT |
4367 | { |
4368 | /* level 0x104 SMB_QUERY_FILE_SYSTEM_INFO */ | |
4369 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4370 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4371 | FILE_SYSTEM_DEVICE_INFO *response_data; | |
4372 | int rc = 0; | |
4373 | int bytes_returned = 0; | |
4374 | __u16 params, byte_count; | |
4375 | ||
4376 | cFYI(1, ("In QFSDeviceInfo")); | |
4377 | QFSDeviceRetry: | |
4378 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4379 | (void **) &pSMBr); | |
4380 | if (rc) | |
4381 | return rc; | |
4382 | ||
4383 | params = 2; /* level */ | |
4384 | pSMB->TotalDataCount = 0; | |
4385 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4386 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find exact max SMB PDU from sess structure BB */ | |
4387 | pSMB->MaxSetupCount = 0; | |
4388 | pSMB->Reserved = 0; | |
4389 | pSMB->Flags = 0; | |
4390 | pSMB->Timeout = 0; | |
4391 | pSMB->Reserved2 = 0; | |
4392 | byte_count = params + 1 /* pad */ ; | |
4393 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
4394 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
4395 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 4396 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); |
1da177e4 LT |
4397 | |
4398 | pSMB->DataCount = 0; | |
4399 | pSMB->DataOffset = 0; | |
4400 | pSMB->SetupCount = 1; | |
4401 | pSMB->Reserved3 = 0; | |
4402 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4403 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_DEVICE_INFO); | |
4404 | pSMB->hdr.smb_buf_length += byte_count; | |
4405 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4406 | ||
4407 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4408 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4409 | if (rc) { | |
4410 | cFYI(1, ("Send error in QFSDeviceInfo = %d", rc)); | |
4411 | } else { /* decode response */ | |
4412 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4413 | ||
630f3f0c | 4414 | if (rc || (pSMBr->ByteCount < sizeof(FILE_SYSTEM_DEVICE_INFO))) |
1da177e4 LT |
4415 | rc = -EIO; /* bad smb */ |
4416 | else { | |
4417 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
4418 | response_data = | |
737b758c SF |
4419 | (FILE_SYSTEM_DEVICE_INFO *) |
4420 | (((char *) &pSMBr->hdr.Protocol) + | |
1da177e4 LT |
4421 | data_offset); |
4422 | memcpy(&tcon->fsDevInfo, response_data, | |
26f57364 | 4423 | sizeof(FILE_SYSTEM_DEVICE_INFO)); |
1da177e4 LT |
4424 | } |
4425 | } | |
4426 | cifs_buf_release(pSMB); | |
4427 | ||
4428 | if (rc == -EAGAIN) | |
4429 | goto QFSDeviceRetry; | |
4430 | ||
4431 | return rc; | |
4432 | } | |
4433 | ||
4434 | int | |
737b758c | 4435 | CIFSSMBQFSUnixInfo(const int xid, struct cifsTconInfo *tcon) |
1da177e4 LT |
4436 | { |
4437 | /* level 0x200 SMB_QUERY_CIFS_UNIX_INFO */ | |
4438 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4439 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4440 | FILE_SYSTEM_UNIX_INFO *response_data; | |
4441 | int rc = 0; | |
4442 | int bytes_returned = 0; | |
4443 | __u16 params, byte_count; | |
4444 | ||
4445 | cFYI(1, ("In QFSUnixInfo")); | |
4446 | QFSUnixRetry: | |
4447 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4448 | (void **) &pSMBr); | |
4449 | if (rc) | |
4450 | return rc; | |
4451 | ||
4452 | params = 2; /* level */ | |
4453 | pSMB->TotalDataCount = 0; | |
4454 | pSMB->DataCount = 0; | |
4455 | pSMB->DataOffset = 0; | |
4456 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4457 | pSMB->MaxDataCount = cpu_to_le16(100); /* BB find exact max SMB PDU from sess structure BB */ | |
4458 | pSMB->MaxSetupCount = 0; | |
4459 | pSMB->Reserved = 0; | |
4460 | pSMB->Flags = 0; | |
4461 | pSMB->Timeout = 0; | |
4462 | pSMB->Reserved2 = 0; | |
4463 | byte_count = params + 1 /* pad */ ; | |
4464 | pSMB->ParameterCount = cpu_to_le16(params); | |
4465 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
50c2f753 SF |
4466 | pSMB->ParameterOffset = cpu_to_le16(offsetof(struct |
4467 | smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
1da177e4 LT |
4468 | pSMB->SetupCount = 1; |
4469 | pSMB->Reserved3 = 0; | |
4470 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4471 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_CIFS_UNIX_INFO); | |
4472 | pSMB->hdr.smb_buf_length += byte_count; | |
4473 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4474 | ||
4475 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4476 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4477 | if (rc) { | |
4478 | cERROR(1, ("Send error in QFSUnixInfo = %d", rc)); | |
4479 | } else { /* decode response */ | |
4480 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4481 | ||
4482 | if (rc || (pSMBr->ByteCount < 13)) { | |
4483 | rc = -EIO; /* bad smb */ | |
4484 | } else { | |
4485 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
4486 | response_data = | |
4487 | (FILE_SYSTEM_UNIX_INFO | |
4488 | *) (((char *) &pSMBr->hdr.Protocol) + | |
4489 | data_offset); | |
4490 | memcpy(&tcon->fsUnixInfo, response_data, | |
26f57364 | 4491 | sizeof(FILE_SYSTEM_UNIX_INFO)); |
1da177e4 LT |
4492 | } |
4493 | } | |
4494 | cifs_buf_release(pSMB); | |
4495 | ||
4496 | if (rc == -EAGAIN) | |
4497 | goto QFSUnixRetry; | |
4498 | ||
4499 | ||
4500 | return rc; | |
4501 | } | |
4502 | ||
ac67055e | 4503 | int |
45abc6ee | 4504 | CIFSSMBSetFSUnixInfo(const int xid, struct cifsTconInfo *tcon, __u64 cap) |
ac67055e JA |
4505 | { |
4506 | /* level 0x200 SMB_SET_CIFS_UNIX_INFO */ | |
4507 | TRANSACTION2_SETFSI_REQ *pSMB = NULL; | |
4508 | TRANSACTION2_SETFSI_RSP *pSMBr = NULL; | |
4509 | int rc = 0; | |
4510 | int bytes_returned = 0; | |
4511 | __u16 params, param_offset, offset, byte_count; | |
4512 | ||
4513 | cFYI(1, ("In SETFSUnixInfo")); | |
4514 | SETFSUnixRetry: | |
f26282c9 | 4515 | /* BB switch to small buf init to save memory */ |
ac67055e JA |
4516 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
4517 | (void **) &pSMBr); | |
4518 | if (rc) | |
4519 | return rc; | |
4520 | ||
4521 | params = 4; /* 2 bytes zero followed by info level. */ | |
4522 | pSMB->MaxSetupCount = 0; | |
4523 | pSMB->Reserved = 0; | |
4524 | pSMB->Flags = 0; | |
4525 | pSMB->Timeout = 0; | |
4526 | pSMB->Reserved2 = 0; | |
50c2f753 SF |
4527 | param_offset = offsetof(struct smb_com_transaction2_setfsi_req, FileNum) |
4528 | - 4; | |
ac67055e JA |
4529 | offset = param_offset + params; |
4530 | ||
4531 | pSMB->MaxParameterCount = cpu_to_le16(4); | |
4532 | pSMB->MaxDataCount = cpu_to_le16(100); /* BB find exact max SMB PDU from sess structure BB */ | |
4533 | pSMB->SetupCount = 1; | |
4534 | pSMB->Reserved3 = 0; | |
4535 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FS_INFORMATION); | |
4536 | byte_count = 1 /* pad */ + params + 12; | |
4537 | ||
4538 | pSMB->DataCount = cpu_to_le16(12); | |
4539 | pSMB->ParameterCount = cpu_to_le16(params); | |
4540 | pSMB->TotalDataCount = pSMB->DataCount; | |
4541 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4542 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4543 | pSMB->DataOffset = cpu_to_le16(offset); | |
4544 | ||
4545 | /* Params. */ | |
4546 | pSMB->FileNum = 0; | |
4547 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_CIFS_UNIX_INFO); | |
4548 | ||
4549 | /* Data. */ | |
4550 | pSMB->ClientUnixMajor = cpu_to_le16(CIFS_UNIX_MAJOR_VERSION); | |
4551 | pSMB->ClientUnixMinor = cpu_to_le16(CIFS_UNIX_MINOR_VERSION); | |
4552 | pSMB->ClientUnixCap = cpu_to_le64(cap); | |
4553 | ||
4554 | pSMB->hdr.smb_buf_length += byte_count; | |
4555 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4556 | ||
4557 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4558 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4559 | if (rc) { | |
4560 | cERROR(1, ("Send error in SETFSUnixInfo = %d", rc)); | |
4561 | } else { /* decode response */ | |
4562 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4563 | if (rc) { | |
4564 | rc = -EIO; /* bad smb */ | |
4565 | } | |
4566 | } | |
4567 | cifs_buf_release(pSMB); | |
4568 | ||
4569 | if (rc == -EAGAIN) | |
4570 | goto SETFSUnixRetry; | |
4571 | ||
4572 | return rc; | |
4573 | } | |
4574 | ||
4575 | ||
1da177e4 LT |
4576 | |
4577 | int | |
4578 | CIFSSMBQFSPosixInfo(const int xid, struct cifsTconInfo *tcon, | |
737b758c | 4579 | struct kstatfs *FSData) |
1da177e4 LT |
4580 | { |
4581 | /* level 0x201 SMB_QUERY_CIFS_POSIX_INFO */ | |
4582 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4583 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4584 | FILE_SYSTEM_POSIX_INFO *response_data; | |
4585 | int rc = 0; | |
4586 | int bytes_returned = 0; | |
4587 | __u16 params, byte_count; | |
4588 | ||
4589 | cFYI(1, ("In QFSPosixInfo")); | |
4590 | QFSPosixRetry: | |
4591 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4592 | (void **) &pSMBr); | |
4593 | if (rc) | |
4594 | return rc; | |
4595 | ||
4596 | params = 2; /* level */ | |
4597 | pSMB->TotalDataCount = 0; | |
4598 | pSMB->DataCount = 0; | |
4599 | pSMB->DataOffset = 0; | |
4600 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4601 | pSMB->MaxDataCount = cpu_to_le16(100); /* BB find exact max SMB PDU from sess structure BB */ | |
4602 | pSMB->MaxSetupCount = 0; | |
4603 | pSMB->Reserved = 0; | |
4604 | pSMB->Flags = 0; | |
4605 | pSMB->Timeout = 0; | |
4606 | pSMB->Reserved2 = 0; | |
4607 | byte_count = params + 1 /* pad */ ; | |
4608 | pSMB->ParameterCount = cpu_to_le16(params); | |
4609 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
50c2f753 SF |
4610 | pSMB->ParameterOffset = cpu_to_le16(offsetof(struct |
4611 | smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
1da177e4 LT |
4612 | pSMB->SetupCount = 1; |
4613 | pSMB->Reserved3 = 0; | |
4614 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4615 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_POSIX_FS_INFO); | |
4616 | pSMB->hdr.smb_buf_length += byte_count; | |
4617 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4618 | ||
4619 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4620 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4621 | if (rc) { | |
4622 | cFYI(1, ("Send error in QFSUnixInfo = %d", rc)); | |
4623 | } else { /* decode response */ | |
4624 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4625 | ||
4626 | if (rc || (pSMBr->ByteCount < 13)) { | |
4627 | rc = -EIO; /* bad smb */ | |
4628 | } else { | |
4629 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
4630 | response_data = | |
4631 | (FILE_SYSTEM_POSIX_INFO | |
4632 | *) (((char *) &pSMBr->hdr.Protocol) + | |
4633 | data_offset); | |
4634 | FSData->f_bsize = | |
4635 | le32_to_cpu(response_data->BlockSize); | |
4636 | FSData->f_blocks = | |
4637 | le64_to_cpu(response_data->TotalBlocks); | |
4638 | FSData->f_bfree = | |
4639 | le64_to_cpu(response_data->BlocksAvail); | |
790fe579 | 4640 | if (response_data->UserBlocksAvail == cpu_to_le64(-1)) { |
1da177e4 LT |
4641 | FSData->f_bavail = FSData->f_bfree; |
4642 | } else { | |
4643 | FSData->f_bavail = | |
50c2f753 | 4644 | le64_to_cpu(response_data->UserBlocksAvail); |
1da177e4 | 4645 | } |
790fe579 | 4646 | if (response_data->TotalFileNodes != cpu_to_le64(-1)) |
1da177e4 | 4647 | FSData->f_files = |
50c2f753 | 4648 | le64_to_cpu(response_data->TotalFileNodes); |
790fe579 | 4649 | if (response_data->FreeFileNodes != cpu_to_le64(-1)) |
1da177e4 | 4650 | FSData->f_ffree = |
50c2f753 | 4651 | le64_to_cpu(response_data->FreeFileNodes); |
1da177e4 LT |
4652 | } |
4653 | } | |
4654 | cifs_buf_release(pSMB); | |
4655 | ||
4656 | if (rc == -EAGAIN) | |
4657 | goto QFSPosixRetry; | |
4658 | ||
4659 | return rc; | |
4660 | } | |
4661 | ||
4662 | ||
50c2f753 SF |
4663 | /* We can not use write of zero bytes trick to |
4664 | set file size due to need for large file support. Also note that | |
4665 | this SetPathInfo is preferred to SetFileInfo based method in next | |
1da177e4 LT |
4666 | routine which is only needed to work around a sharing violation bug |
4667 | in Samba which this routine can run into */ | |
4668 | ||
4669 | int | |
4670 | CIFSSMBSetEOF(const int xid, struct cifsTconInfo *tcon, const char *fileName, | |
50c2f753 | 4671 | __u64 size, int SetAllocation, |
737b758c | 4672 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
4673 | { |
4674 | struct smb_com_transaction2_spi_req *pSMB = NULL; | |
4675 | struct smb_com_transaction2_spi_rsp *pSMBr = NULL; | |
4676 | struct file_end_of_file_info *parm_data; | |
4677 | int name_len; | |
4678 | int rc = 0; | |
4679 | int bytes_returned = 0; | |
4680 | __u16 params, byte_count, data_count, param_offset, offset; | |
4681 | ||
4682 | cFYI(1, ("In SetEOF")); | |
4683 | SetEOFRetry: | |
4684 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4685 | (void **) &pSMBr); | |
4686 | if (rc) | |
4687 | return rc; | |
4688 | ||
4689 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
4690 | name_len = | |
b1a45695 | 4691 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 4692 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
4693 | name_len++; /* trailing null */ |
4694 | name_len *= 2; | |
3e87d803 | 4695 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
4696 | name_len = strnlen(fileName, PATH_MAX); |
4697 | name_len++; /* trailing null */ | |
4698 | strncpy(pSMB->FileName, fileName, name_len); | |
4699 | } | |
4700 | params = 6 + name_len; | |
26f57364 | 4701 | data_count = sizeof(struct file_end_of_file_info); |
1da177e4 | 4702 | pSMB->MaxParameterCount = cpu_to_le16(2); |
3e87d803 | 4703 | pSMB->MaxDataCount = cpu_to_le16(4100); |
1da177e4 LT |
4704 | pSMB->MaxSetupCount = 0; |
4705 | pSMB->Reserved = 0; | |
4706 | pSMB->Flags = 0; | |
4707 | pSMB->Timeout = 0; | |
4708 | pSMB->Reserved2 = 0; | |
4709 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 4710 | InformationLevel) - 4; |
1da177e4 | 4711 | offset = param_offset + params; |
790fe579 | 4712 | if (SetAllocation) { |
50c2f753 SF |
4713 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
4714 | pSMB->InformationLevel = | |
4715 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO2); | |
4716 | else | |
4717 | pSMB->InformationLevel = | |
4718 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO); | |
4719 | } else /* Set File Size */ { | |
1da177e4 LT |
4720 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
4721 | pSMB->InformationLevel = | |
50c2f753 | 4722 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO2); |
1da177e4 LT |
4723 | else |
4724 | pSMB->InformationLevel = | |
50c2f753 | 4725 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO); |
1da177e4 LT |
4726 | } |
4727 | ||
4728 | parm_data = | |
4729 | (struct file_end_of_file_info *) (((char *) &pSMB->hdr.Protocol) + | |
4730 | offset); | |
4731 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4732 | pSMB->DataOffset = cpu_to_le16(offset); | |
4733 | pSMB->SetupCount = 1; | |
4734 | pSMB->Reserved3 = 0; | |
4735 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
4736 | byte_count = 3 /* pad */ + params + data_count; | |
4737 | pSMB->DataCount = cpu_to_le16(data_count); | |
4738 | pSMB->TotalDataCount = pSMB->DataCount; | |
4739 | pSMB->ParameterCount = cpu_to_le16(params); | |
4740 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4741 | pSMB->Reserved4 = 0; | |
4742 | pSMB->hdr.smb_buf_length += byte_count; | |
4743 | parm_data->FileSize = cpu_to_le64(size); | |
4744 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4745 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4746 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4747 | if (rc) { | |
4748 | cFYI(1, ("SetPathInfo (file size) returned %d", rc)); | |
4749 | } | |
4750 | ||
4751 | cifs_buf_release(pSMB); | |
4752 | ||
4753 | if (rc == -EAGAIN) | |
4754 | goto SetEOFRetry; | |
4755 | ||
4756 | return rc; | |
4757 | } | |
4758 | ||
4759 | int | |
50c2f753 SF |
4760 | CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon, __u64 size, |
4761 | __u16 fid, __u32 pid_of_opener, int SetAllocation) | |
1da177e4 LT |
4762 | { |
4763 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
1da177e4 LT |
4764 | char *data_offset; |
4765 | struct file_end_of_file_info *parm_data; | |
4766 | int rc = 0; | |
1da177e4 LT |
4767 | __u16 params, param_offset, offset, byte_count, count; |
4768 | ||
4769 | cFYI(1, ("SetFileSize (via SetFileInfo) %lld", | |
4770 | (long long)size)); | |
cd63499c SF |
4771 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
4772 | ||
1da177e4 LT |
4773 | if (rc) |
4774 | return rc; | |
4775 | ||
4776 | pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener); | |
4777 | pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16)); | |
50c2f753 | 4778 | |
1da177e4 LT |
4779 | params = 6; |
4780 | pSMB->MaxSetupCount = 0; | |
4781 | pSMB->Reserved = 0; | |
4782 | pSMB->Flags = 0; | |
4783 | pSMB->Timeout = 0; | |
4784 | pSMB->Reserved2 = 0; | |
4785 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
4786 | offset = param_offset + params; | |
4787 | ||
50c2f753 | 4788 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; |
1da177e4 LT |
4789 | |
4790 | count = sizeof(struct file_end_of_file_info); | |
4791 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4792 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB PDU from sess */ | |
4793 | pSMB->SetupCount = 1; | |
4794 | pSMB->Reserved3 = 0; | |
4795 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
4796 | byte_count = 3 /* pad */ + params + count; | |
4797 | pSMB->DataCount = cpu_to_le16(count); | |
4798 | pSMB->ParameterCount = cpu_to_le16(params); | |
4799 | pSMB->TotalDataCount = pSMB->DataCount; | |
4800 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4801 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4802 | parm_data = | |
50c2f753 SF |
4803 | (struct file_end_of_file_info *) (((char *) &pSMB->hdr.Protocol) |
4804 | + offset); | |
1da177e4 LT |
4805 | pSMB->DataOffset = cpu_to_le16(offset); |
4806 | parm_data->FileSize = cpu_to_le64(size); | |
4807 | pSMB->Fid = fid; | |
790fe579 | 4808 | if (SetAllocation) { |
1da177e4 LT |
4809 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
4810 | pSMB->InformationLevel = | |
4811 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO2); | |
4812 | else | |
4813 | pSMB->InformationLevel = | |
4814 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO); | |
50c2f753 | 4815 | } else /* Set File Size */ { |
1da177e4 LT |
4816 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
4817 | pSMB->InformationLevel = | |
50c2f753 | 4818 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO2); |
1da177e4 LT |
4819 | else |
4820 | pSMB->InformationLevel = | |
50c2f753 | 4821 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO); |
1da177e4 LT |
4822 | } |
4823 | pSMB->Reserved4 = 0; | |
4824 | pSMB->hdr.smb_buf_length += byte_count; | |
4825 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
133672ef | 4826 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); |
1da177e4 LT |
4827 | if (rc) { |
4828 | cFYI(1, | |
4829 | ("Send error in SetFileInfo (SetFileSize) = %d", | |
4830 | rc)); | |
4831 | } | |
4832 | ||
50c2f753 | 4833 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
1da177e4 LT |
4834 | since file handle passed in no longer valid */ |
4835 | ||
4836 | return rc; | |
4837 | } | |
4838 | ||
50c2f753 | 4839 | /* Some legacy servers such as NT4 require that the file times be set on |
1da177e4 LT |
4840 | an open handle, rather than by pathname - this is awkward due to |
4841 | potential access conflicts on the open, but it is unavoidable for these | |
4842 | old servers since the only other choice is to go from 100 nanosecond DCE | |
4843 | time and resort to the original setpathinfo level which takes the ancient | |
4844 | DOS time format with 2 second granularity */ | |
4845 | int | |
50c2f753 SF |
4846 | CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon, |
4847 | const FILE_BASIC_INFO *data, __u16 fid) | |
1da177e4 LT |
4848 | { |
4849 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
1da177e4 LT |
4850 | char *data_offset; |
4851 | int rc = 0; | |
1da177e4 LT |
4852 | __u16 params, param_offset, offset, byte_count, count; |
4853 | ||
4854 | cFYI(1, ("Set Times (via SetFileInfo)")); | |
cd63499c SF |
4855 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
4856 | ||
1da177e4 LT |
4857 | if (rc) |
4858 | return rc; | |
4859 | ||
4860 | /* At this point there is no need to override the current pid | |
4861 | with the pid of the opener, but that could change if we someday | |
4862 | use an existing handle (rather than opening one on the fly) */ | |
4863 | /* pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener); | |
4864 | pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16));*/ | |
50c2f753 | 4865 | |
1da177e4 LT |
4866 | params = 6; |
4867 | pSMB->MaxSetupCount = 0; | |
4868 | pSMB->Reserved = 0; | |
4869 | pSMB->Flags = 0; | |
4870 | pSMB->Timeout = 0; | |
4871 | pSMB->Reserved2 = 0; | |
4872 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
4873 | offset = param_offset + params; | |
4874 | ||
50c2f753 | 4875 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; |
1da177e4 | 4876 | |
26f57364 | 4877 | count = sizeof(FILE_BASIC_INFO); |
1da177e4 LT |
4878 | pSMB->MaxParameterCount = cpu_to_le16(2); |
4879 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB PDU from sess */ | |
4880 | pSMB->SetupCount = 1; | |
4881 | pSMB->Reserved3 = 0; | |
4882 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
4883 | byte_count = 3 /* pad */ + params + count; | |
4884 | pSMB->DataCount = cpu_to_le16(count); | |
4885 | pSMB->ParameterCount = cpu_to_le16(params); | |
4886 | pSMB->TotalDataCount = pSMB->DataCount; | |
4887 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4888 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4889 | pSMB->DataOffset = cpu_to_le16(offset); | |
4890 | pSMB->Fid = fid; | |
4891 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) | |
4892 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO2); | |
4893 | else | |
4894 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO); | |
4895 | pSMB->Reserved4 = 0; | |
4896 | pSMB->hdr.smb_buf_length += byte_count; | |
4897 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
50c2f753 | 4898 | memcpy(data_offset, data, sizeof(FILE_BASIC_INFO)); |
133672ef | 4899 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); |
1da177e4 | 4900 | if (rc) { |
50c2f753 | 4901 | cFYI(1, ("Send error in Set Time (SetFileInfo) = %d", rc)); |
1da177e4 LT |
4902 | } |
4903 | ||
50c2f753 | 4904 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
1da177e4 LT |
4905 | since file handle passed in no longer valid */ |
4906 | ||
4907 | return rc; | |
4908 | } | |
4909 | ||
4910 | ||
4911 | int | |
4912 | CIFSSMBSetTimes(const int xid, struct cifsTconInfo *tcon, const char *fileName, | |
50c2f753 | 4913 | const FILE_BASIC_INFO *data, |
737b758c | 4914 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
4915 | { |
4916 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
4917 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
4918 | int name_len; | |
4919 | int rc = 0; | |
4920 | int bytes_returned = 0; | |
4921 | char *data_offset; | |
4922 | __u16 params, param_offset, offset, byte_count, count; | |
4923 | ||
4924 | cFYI(1, ("In SetTimes")); | |
4925 | ||
4926 | SetTimesRetry: | |
4927 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4928 | (void **) &pSMBr); | |
4929 | if (rc) | |
4930 | return rc; | |
4931 | ||
4932 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
4933 | name_len = | |
b1a45695 | 4934 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 4935 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
4936 | name_len++; /* trailing null */ |
4937 | name_len *= 2; | |
50c2f753 | 4938 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
4939 | name_len = strnlen(fileName, PATH_MAX); |
4940 | name_len++; /* trailing null */ | |
4941 | strncpy(pSMB->FileName, fileName, name_len); | |
4942 | } | |
4943 | ||
4944 | params = 6 + name_len; | |
26f57364 | 4945 | count = sizeof(FILE_BASIC_INFO); |
1da177e4 LT |
4946 | pSMB->MaxParameterCount = cpu_to_le16(2); |
4947 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find exact max SMB PDU from sess structure BB */ | |
4948 | pSMB->MaxSetupCount = 0; | |
4949 | pSMB->Reserved = 0; | |
4950 | pSMB->Flags = 0; | |
4951 | pSMB->Timeout = 0; | |
4952 | pSMB->Reserved2 = 0; | |
4953 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 4954 | InformationLevel) - 4; |
1da177e4 LT |
4955 | offset = param_offset + params; |
4956 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
4957 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4958 | pSMB->DataOffset = cpu_to_le16(offset); | |
4959 | pSMB->SetupCount = 1; | |
4960 | pSMB->Reserved3 = 0; | |
4961 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
4962 | byte_count = 3 /* pad */ + params + count; | |
4963 | ||
4964 | pSMB->DataCount = cpu_to_le16(count); | |
4965 | pSMB->ParameterCount = cpu_to_le16(params); | |
4966 | pSMB->TotalDataCount = pSMB->DataCount; | |
4967 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4968 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) | |
4969 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO2); | |
4970 | else | |
4971 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO); | |
4972 | pSMB->Reserved4 = 0; | |
4973 | pSMB->hdr.smb_buf_length += byte_count; | |
26f57364 | 4974 | memcpy(data_offset, data, sizeof(FILE_BASIC_INFO)); |
1da177e4 LT |
4975 | pSMB->ByteCount = cpu_to_le16(byte_count); |
4976 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4977 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4978 | if (rc) { | |
4979 | cFYI(1, ("SetPathInfo (times) returned %d", rc)); | |
4980 | } | |
4981 | ||
4982 | cifs_buf_release(pSMB); | |
4983 | ||
4984 | if (rc == -EAGAIN) | |
4985 | goto SetTimesRetry; | |
4986 | ||
4987 | return rc; | |
4988 | } | |
4989 | ||
4990 | /* Can not be used to set time stamps yet (due to old DOS time format) */ | |
4991 | /* Can be used to set attributes */ | |
4992 | #if 0 /* Possibly not needed - since it turns out that strangely NT4 has a bug | |
4993 | handling it anyway and NT4 was what we thought it would be needed for | |
4994 | Do not delete it until we prove whether needed for Win9x though */ | |
4995 | int | |
4996 | CIFSSMBSetAttrLegacy(int xid, struct cifsTconInfo *tcon, char *fileName, | |
4997 | __u16 dos_attrs, const struct nls_table *nls_codepage) | |
4998 | { | |
4999 | SETATTR_REQ *pSMB = NULL; | |
5000 | SETATTR_RSP *pSMBr = NULL; | |
5001 | int rc = 0; | |
5002 | int bytes_returned; | |
5003 | int name_len; | |
5004 | ||
5005 | cFYI(1, ("In SetAttrLegacy")); | |
5006 | ||
5007 | SetAttrLgcyRetry: | |
5008 | rc = smb_init(SMB_COM_SETATTR, 8, tcon, (void **) &pSMB, | |
5009 | (void **) &pSMBr); | |
5010 | if (rc) | |
5011 | return rc; | |
5012 | ||
5013 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
5014 | name_len = | |
50c2f753 | 5015 | ConvertToUCS((__le16 *) pSMB->fileName, fileName, |
1da177e4 LT |
5016 | PATH_MAX, nls_codepage); |
5017 | name_len++; /* trailing null */ | |
5018 | name_len *= 2; | |
50c2f753 | 5019 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
5020 | name_len = strnlen(fileName, PATH_MAX); |
5021 | name_len++; /* trailing null */ | |
5022 | strncpy(pSMB->fileName, fileName, name_len); | |
5023 | } | |
5024 | pSMB->attr = cpu_to_le16(dos_attrs); | |
5025 | pSMB->BufferFormat = 0x04; | |
5026 | pSMB->hdr.smb_buf_length += name_len + 1; | |
5027 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
5028 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
5029 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
5030 | if (rc) { | |
5031 | cFYI(1, ("Error in LegacySetAttr = %d", rc)); | |
5032 | } | |
5033 | ||
5034 | cifs_buf_release(pSMB); | |
5035 | ||
5036 | if (rc == -EAGAIN) | |
5037 | goto SetAttrLgcyRetry; | |
5038 | ||
5039 | return rc; | |
5040 | } | |
5041 | #endif /* temporarily unneeded SetAttr legacy function */ | |
5042 | ||
5043 | int | |
5044 | CIFSSMBUnixSetPerms(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 SF |
5045 | char *fileName, __u64 mode, __u64 uid, __u64 gid, |
5046 | dev_t device, const struct nls_table *nls_codepage, | |
737b758c | 5047 | int remap) |
1da177e4 LT |
5048 | { |
5049 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
5050 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
5051 | int name_len; | |
5052 | int rc = 0; | |
5053 | int bytes_returned = 0; | |
5054 | FILE_UNIX_BASIC_INFO *data_offset; | |
5055 | __u16 params, param_offset, offset, count, byte_count; | |
5056 | ||
5057 | cFYI(1, ("In SetUID/GID/Mode")); | |
5058 | setPermsRetry: | |
5059 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
5060 | (void **) &pSMBr); | |
5061 | if (rc) | |
5062 | return rc; | |
5063 | ||
5064 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
5065 | name_len = | |
50c2f753 | 5066 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 5067 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
5068 | name_len++; /* trailing null */ |
5069 | name_len *= 2; | |
3e87d803 | 5070 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
5071 | name_len = strnlen(fileName, PATH_MAX); |
5072 | name_len++; /* trailing null */ | |
5073 | strncpy(pSMB->FileName, fileName, name_len); | |
5074 | } | |
5075 | ||
5076 | params = 6 + name_len; | |
26f57364 | 5077 | count = sizeof(FILE_UNIX_BASIC_INFO); |
1da177e4 LT |
5078 | pSMB->MaxParameterCount = cpu_to_le16(2); |
5079 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find exact max SMB PDU from sess structure BB */ | |
5080 | pSMB->MaxSetupCount = 0; | |
5081 | pSMB->Reserved = 0; | |
5082 | pSMB->Flags = 0; | |
5083 | pSMB->Timeout = 0; | |
5084 | pSMB->Reserved2 = 0; | |
5085 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 5086 | InformationLevel) - 4; |
1da177e4 LT |
5087 | offset = param_offset + params; |
5088 | data_offset = | |
5089 | (FILE_UNIX_BASIC_INFO *) ((char *) &pSMB->hdr.Protocol + | |
5090 | offset); | |
5091 | memset(data_offset, 0, count); | |
5092 | pSMB->DataOffset = cpu_to_le16(offset); | |
5093 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
5094 | pSMB->SetupCount = 1; | |
5095 | pSMB->Reserved3 = 0; | |
5096 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
5097 | byte_count = 3 /* pad */ + params + count; | |
5098 | pSMB->ParameterCount = cpu_to_le16(params); | |
5099 | pSMB->DataCount = cpu_to_le16(count); | |
5100 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
5101 | pSMB->TotalDataCount = pSMB->DataCount; | |
5102 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_BASIC); | |
5103 | pSMB->Reserved4 = 0; | |
5104 | pSMB->hdr.smb_buf_length += byte_count; | |
c7af1857 SF |
5105 | /* Samba server ignores set of file size to zero due to bugs in some |
5106 | older clients, but we should be precise - we use SetFileSize to | |
5107 | set file size and do not want to truncate file size to zero | |
5108 | accidently as happened on one Samba server beta by putting | |
50c2f753 | 5109 | zero instead of -1 here */ |
c7af1857 SF |
5110 | data_offset->EndOfFile = NO_CHANGE_64; |
5111 | data_offset->NumOfBytes = NO_CHANGE_64; | |
5112 | data_offset->LastStatusChange = NO_CHANGE_64; | |
5113 | data_offset->LastAccessTime = NO_CHANGE_64; | |
5114 | data_offset->LastModificationTime = NO_CHANGE_64; | |
1da177e4 LT |
5115 | data_offset->Uid = cpu_to_le64(uid); |
5116 | data_offset->Gid = cpu_to_le64(gid); | |
5117 | /* better to leave device as zero when it is */ | |
5118 | data_offset->DevMajor = cpu_to_le64(MAJOR(device)); | |
5119 | data_offset->DevMinor = cpu_to_le64(MINOR(device)); | |
5120 | data_offset->Permissions = cpu_to_le64(mode); | |
50c2f753 | 5121 | |
790fe579 | 5122 | if (S_ISREG(mode)) |
1da177e4 | 5123 | data_offset->Type = cpu_to_le32(UNIX_FILE); |
790fe579 | 5124 | else if (S_ISDIR(mode)) |
1da177e4 | 5125 | data_offset->Type = cpu_to_le32(UNIX_DIR); |
790fe579 | 5126 | else if (S_ISLNK(mode)) |
1da177e4 | 5127 | data_offset->Type = cpu_to_le32(UNIX_SYMLINK); |
790fe579 | 5128 | else if (S_ISCHR(mode)) |
1da177e4 | 5129 | data_offset->Type = cpu_to_le32(UNIX_CHARDEV); |
790fe579 | 5130 | else if (S_ISBLK(mode)) |
1da177e4 | 5131 | data_offset->Type = cpu_to_le32(UNIX_BLOCKDEV); |
790fe579 | 5132 | else if (S_ISFIFO(mode)) |
1da177e4 | 5133 | data_offset->Type = cpu_to_le32(UNIX_FIFO); |
790fe579 | 5134 | else if (S_ISSOCK(mode)) |
1da177e4 LT |
5135 | data_offset->Type = cpu_to_le32(UNIX_SOCKET); |
5136 | ||
5137 | ||
5138 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
5139 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
5140 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
5141 | if (rc) { | |
5142 | cFYI(1, ("SetPathInfo (perms) returned %d", rc)); | |
5143 | } | |
5144 | ||
5145 | if (pSMB) | |
5146 | cifs_buf_release(pSMB); | |
5147 | if (rc == -EAGAIN) | |
5148 | goto setPermsRetry; | |
5149 | return rc; | |
5150 | } | |
5151 | ||
50c2f753 | 5152 | int CIFSSMBNotify(const int xid, struct cifsTconInfo *tcon, |
167a251a | 5153 | const int notify_subdirs, const __u16 netfid, |
50c2f753 | 5154 | __u32 filter, struct file *pfile, int multishot, |
167a251a | 5155 | const struct nls_table *nls_codepage) |
1da177e4 LT |
5156 | { |
5157 | int rc = 0; | |
50c2f753 SF |
5158 | struct smb_com_transaction_change_notify_req *pSMB = NULL; |
5159 | struct smb_com_ntransaction_change_notify_rsp *pSMBr = NULL; | |
abb15b8a | 5160 | struct dir_notify_req *dnotify_req; |
1da177e4 LT |
5161 | int bytes_returned; |
5162 | ||
50c2f753 | 5163 | cFYI(1, ("In CIFSSMBNotify for file handle %d", (int)netfid)); |
1da177e4 | 5164 | rc = smb_init(SMB_COM_NT_TRANSACT, 23, tcon, (void **) &pSMB, |
50c2f753 | 5165 | (void **) &pSMBr); |
1da177e4 LT |
5166 | if (rc) |
5167 | return rc; | |
5168 | ||
5169 | pSMB->TotalParameterCount = 0 ; | |
5170 | pSMB->TotalDataCount = 0; | |
5171 | pSMB->MaxParameterCount = cpu_to_le32(2); | |
5172 | /* BB find exact data count max from sess structure BB */ | |
5173 | pSMB->MaxDataCount = 0; /* same in little endian or be */ | |
0a4b92c0 SF |
5174 | /* BB VERIFY verify which is correct for above BB */ |
5175 | pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf - | |
5176 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
5177 | ||
1da177e4 LT |
5178 | pSMB->MaxSetupCount = 4; |
5179 | pSMB->Reserved = 0; | |
5180 | pSMB->ParameterOffset = 0; | |
5181 | pSMB->DataCount = 0; | |
5182 | pSMB->DataOffset = 0; | |
5183 | pSMB->SetupCount = 4; /* single byte does not need le conversion */ | |
5184 | pSMB->SubCommand = cpu_to_le16(NT_TRANSACT_NOTIFY_CHANGE); | |
5185 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
790fe579 | 5186 | if (notify_subdirs) |
1da177e4 LT |
5187 | pSMB->WatchTree = 1; /* one byte - no le conversion needed */ |
5188 | pSMB->Reserved2 = 0; | |
5189 | pSMB->CompletionFilter = cpu_to_le32(filter); | |
5190 | pSMB->Fid = netfid; /* file handle always le */ | |
5191 | pSMB->ByteCount = 0; | |
5192 | ||
5193 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
133672ef SF |
5194 | (struct smb_hdr *)pSMBr, &bytes_returned, |
5195 | CIFS_ASYNC_OP); | |
1da177e4 LT |
5196 | if (rc) { |
5197 | cFYI(1, ("Error in Notify = %d", rc)); | |
ff5dbd9e SF |
5198 | } else { |
5199 | /* Add file to outstanding requests */ | |
50c2f753 | 5200 | /* BB change to kmem cache alloc */ |
5cbded58 | 5201 | dnotify_req = kmalloc( |
47c786e7 SF |
5202 | sizeof(struct dir_notify_req), |
5203 | GFP_KERNEL); | |
790fe579 | 5204 | if (dnotify_req) { |
47c786e7 SF |
5205 | dnotify_req->Pid = pSMB->hdr.Pid; |
5206 | dnotify_req->PidHigh = pSMB->hdr.PidHigh; | |
5207 | dnotify_req->Mid = pSMB->hdr.Mid; | |
5208 | dnotify_req->Tid = pSMB->hdr.Tid; | |
5209 | dnotify_req->Uid = pSMB->hdr.Uid; | |
5210 | dnotify_req->netfid = netfid; | |
5211 | dnotify_req->pfile = pfile; | |
5212 | dnotify_req->filter = filter; | |
5213 | dnotify_req->multishot = multishot; | |
5214 | spin_lock(&GlobalMid_Lock); | |
50c2f753 | 5215 | list_add_tail(&dnotify_req->lhead, |
47c786e7 SF |
5216 | &GlobalDnotifyReqList); |
5217 | spin_unlock(&GlobalMid_Lock); | |
50c2f753 | 5218 | } else |
47c786e7 | 5219 | rc = -ENOMEM; |
1da177e4 LT |
5220 | } |
5221 | cifs_buf_release(pSMB); | |
50c2f753 | 5222 | return rc; |
1da177e4 LT |
5223 | } |
5224 | #ifdef CONFIG_CIFS_XATTR | |
5225 | ssize_t | |
5226 | CIFSSMBQAllEAs(const int xid, struct cifsTconInfo *tcon, | |
5227 | const unsigned char *searchName, | |
50c2f753 | 5228 | char *EAData, size_t buf_size, |
737b758c | 5229 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
5230 | { |
5231 | /* BB assumes one setup word */ | |
5232 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
5233 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
5234 | int rc = 0; | |
5235 | int bytes_returned; | |
5236 | int name_len; | |
50c2f753 SF |
5237 | struct fea *temp_fea; |
5238 | char *temp_ptr; | |
1da177e4 LT |
5239 | __u16 params, byte_count; |
5240 | ||
5241 | cFYI(1, ("In Query All EAs path %s", searchName)); | |
5242 | QAllEAsRetry: | |
5243 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
5244 | (void **) &pSMBr); | |
5245 | if (rc) | |
5246 | return rc; | |
5247 | ||
5248 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
5249 | name_len = | |
50c2f753 | 5250 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 5251 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
5252 | name_len++; /* trailing null */ |
5253 | name_len *= 2; | |
5254 | } else { /* BB improve the check for buffer overruns BB */ | |
5255 | name_len = strnlen(searchName, PATH_MAX); | |
5256 | name_len++; /* trailing null */ | |
5257 | strncpy(pSMB->FileName, searchName, name_len); | |
5258 | } | |
5259 | ||
50c2f753 | 5260 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */; |
1da177e4 LT |
5261 | pSMB->TotalDataCount = 0; |
5262 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
5263 | pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ | |
5264 | pSMB->MaxSetupCount = 0; | |
5265 | pSMB->Reserved = 0; | |
5266 | pSMB->Flags = 0; | |
5267 | pSMB->Timeout = 0; | |
5268 | pSMB->Reserved2 = 0; | |
5269 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 5270 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
1da177e4 LT |
5271 | pSMB->DataCount = 0; |
5272 | pSMB->DataOffset = 0; | |
5273 | pSMB->SetupCount = 1; | |
5274 | pSMB->Reserved3 = 0; | |
5275 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
5276 | byte_count = params + 1 /* pad */ ; | |
5277 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
5278 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
5279 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_QUERY_ALL_EAS); | |
5280 | pSMB->Reserved4 = 0; | |
5281 | pSMB->hdr.smb_buf_length += byte_count; | |
5282 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
5283 | ||
5284 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
5285 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
5286 | if (rc) { | |
5287 | cFYI(1, ("Send error in QueryAllEAs = %d", rc)); | |
5288 | } else { /* decode response */ | |
5289 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
5290 | ||
5291 | /* BB also check enough total bytes returned */ | |
5292 | /* BB we need to improve the validity checking | |
5293 | of these trans2 responses */ | |
50c2f753 | 5294 | if (rc || (pSMBr->ByteCount < 4)) |
1da177e4 LT |
5295 | rc = -EIO; /* bad smb */ |
5296 | /* else if (pFindData){ | |
5297 | memcpy((char *) pFindData, | |
5298 | (char *) &pSMBr->hdr.Protocol + | |
5299 | data_offset, kl); | |
5300 | }*/ else { | |
5301 | /* check that length of list is not more than bcc */ | |
5302 | /* check that each entry does not go beyond length | |
5303 | of list */ | |
5304 | /* check that each element of each entry does not | |
5305 | go beyond end of list */ | |
5306 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
50c2f753 | 5307 | struct fealist *ea_response_data; |
1da177e4 LT |
5308 | rc = 0; |
5309 | /* validate_trans2_offsets() */ | |
790fe579 | 5310 | /* BB check if start of smb + data_offset > &bcc+ bcc */ |
1da177e4 LT |
5311 | ea_response_data = (struct fealist *) |
5312 | (((char *) &pSMBr->hdr.Protocol) + | |
5313 | data_offset); | |
5314 | name_len = le32_to_cpu(ea_response_data->list_len); | |
50c2f753 | 5315 | cFYI(1, ("ea length %d", name_len)); |
790fe579 | 5316 | if (name_len <= 8) { |
1da177e4 | 5317 | /* returned EA size zeroed at top of function */ |
50c2f753 | 5318 | cFYI(1, ("empty EA list returned from server")); |
1da177e4 LT |
5319 | } else { |
5320 | /* account for ea list len */ | |
5321 | name_len -= 4; | |
5322 | temp_fea = ea_response_data->list; | |
5323 | temp_ptr = (char *)temp_fea; | |
50c2f753 | 5324 | while (name_len > 0) { |
1da177e4 LT |
5325 | __u16 value_len; |
5326 | name_len -= 4; | |
5327 | temp_ptr += 4; | |
5328 | rc += temp_fea->name_len; | |
5329 | /* account for prefix user. and trailing null */ | |
790fe579 SF |
5330 | rc = rc + 5 + 1; |
5331 | if (rc < (int)buf_size) { | |
50c2f753 SF |
5332 | memcpy(EAData, "user.", 5); |
5333 | EAData += 5; | |
5334 | memcpy(EAData, temp_ptr, | |
5335 | temp_fea->name_len); | |
5336 | EAData += temp_fea->name_len; | |
1da177e4 LT |
5337 | /* null terminate name */ |
5338 | *EAData = 0; | |
5339 | EAData = EAData + 1; | |
790fe579 | 5340 | } else if (buf_size == 0) { |
1da177e4 LT |
5341 | /* skip copy - calc size only */ |
5342 | } else { | |
5343 | /* stop before overrun buffer */ | |
5344 | rc = -ERANGE; | |
5345 | break; | |
5346 | } | |
5347 | name_len -= temp_fea->name_len; | |
5348 | temp_ptr += temp_fea->name_len; | |
5349 | /* account for trailing null */ | |
5350 | name_len--; | |
5351 | temp_ptr++; | |
50c2f753 SF |
5352 | value_len = |
5353 | le16_to_cpu(temp_fea->value_len); | |
1da177e4 LT |
5354 | name_len -= value_len; |
5355 | temp_ptr += value_len; | |
50c2f753 SF |
5356 | /* BB check that temp_ptr is still |
5357 | within the SMB BB*/ | |
5358 | ||
5359 | /* no trailing null to account for | |
5360 | in value len */ | |
1da177e4 LT |
5361 | /* go on to next EA */ |
5362 | temp_fea = (struct fea *)temp_ptr; | |
5363 | } | |
5364 | } | |
5365 | } | |
5366 | } | |
5367 | if (pSMB) | |
5368 | cifs_buf_release(pSMB); | |
5369 | if (rc == -EAGAIN) | |
5370 | goto QAllEAsRetry; | |
5371 | ||
5372 | return (ssize_t)rc; | |
5373 | } | |
5374 | ||
50c2f753 SF |
5375 | ssize_t CIFSSMBQueryEA(const int xid, struct cifsTconInfo *tcon, |
5376 | const unsigned char *searchName, const unsigned char *ea_name, | |
5377 | unsigned char *ea_value, size_t buf_size, | |
737b758c | 5378 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
5379 | { |
5380 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
5381 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
5382 | int rc = 0; | |
5383 | int bytes_returned; | |
5384 | int name_len; | |
50c2f753 SF |
5385 | struct fea *temp_fea; |
5386 | char *temp_ptr; | |
1da177e4 LT |
5387 | __u16 params, byte_count; |
5388 | ||
5389 | cFYI(1, ("In Query EA path %s", searchName)); | |
5390 | QEARetry: | |
5391 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
5392 | (void **) &pSMBr); | |
5393 | if (rc) | |
5394 | return rc; | |
5395 | ||
5396 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
5397 | name_len = | |
50c2f753 | 5398 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 5399 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
5400 | name_len++; /* trailing null */ |
5401 | name_len *= 2; | |
5402 | } else { /* BB improve the check for buffer overruns BB */ | |
5403 | name_len = strnlen(searchName, PATH_MAX); | |
5404 | name_len++; /* trailing null */ | |
5405 | strncpy(pSMB->FileName, searchName, name_len); | |
5406 | } | |
5407 | ||
50c2f753 | 5408 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */; |
1da177e4 LT |
5409 | pSMB->TotalDataCount = 0; |
5410 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
5411 | pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ | |
5412 | pSMB->MaxSetupCount = 0; | |
5413 | pSMB->Reserved = 0; | |
5414 | pSMB->Flags = 0; | |
5415 | pSMB->Timeout = 0; | |
5416 | pSMB->Reserved2 = 0; | |
5417 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 5418 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
1da177e4 LT |
5419 | pSMB->DataCount = 0; |
5420 | pSMB->DataOffset = 0; | |
5421 | pSMB->SetupCount = 1; | |
5422 | pSMB->Reserved3 = 0; | |
5423 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
5424 | byte_count = params + 1 /* pad */ ; | |
5425 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
5426 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
5427 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_QUERY_ALL_EAS); | |
5428 | pSMB->Reserved4 = 0; | |
5429 | pSMB->hdr.smb_buf_length += byte_count; | |
5430 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
5431 | ||
5432 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
5433 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
5434 | if (rc) { | |
5435 | cFYI(1, ("Send error in Query EA = %d", rc)); | |
5436 | } else { /* decode response */ | |
5437 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
5438 | ||
5439 | /* BB also check enough total bytes returned */ | |
5440 | /* BB we need to improve the validity checking | |
5441 | of these trans2 responses */ | |
50c2f753 | 5442 | if (rc || (pSMBr->ByteCount < 4)) |
1da177e4 LT |
5443 | rc = -EIO; /* bad smb */ |
5444 | /* else if (pFindData){ | |
5445 | memcpy((char *) pFindData, | |
5446 | (char *) &pSMBr->hdr.Protocol + | |
5447 | data_offset, kl); | |
5448 | }*/ else { | |
5449 | /* check that length of list is not more than bcc */ | |
5450 | /* check that each entry does not go beyond length | |
5451 | of list */ | |
5452 | /* check that each element of each entry does not | |
5453 | go beyond end of list */ | |
5454 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
50c2f753 | 5455 | struct fealist *ea_response_data; |
1da177e4 LT |
5456 | rc = -ENODATA; |
5457 | /* validate_trans2_offsets() */ | |
790fe579 | 5458 | /* BB check if start of smb + data_offset > &bcc+ bcc*/ |
1da177e4 LT |
5459 | ea_response_data = (struct fealist *) |
5460 | (((char *) &pSMBr->hdr.Protocol) + | |
5461 | data_offset); | |
5462 | name_len = le32_to_cpu(ea_response_data->list_len); | |
50c2f753 | 5463 | cFYI(1, ("ea length %d", name_len)); |
790fe579 | 5464 | if (name_len <= 8) { |
1da177e4 | 5465 | /* returned EA size zeroed at top of function */ |
50c2f753 | 5466 | cFYI(1, ("empty EA list returned from server")); |
1da177e4 LT |
5467 | } else { |
5468 | /* account for ea list len */ | |
5469 | name_len -= 4; | |
5470 | temp_fea = ea_response_data->list; | |
5471 | temp_ptr = (char *)temp_fea; | |
5472 | /* loop through checking if we have a matching | |
5473 | name and then return the associated value */ | |
50c2f753 | 5474 | while (name_len > 0) { |
1da177e4 LT |
5475 | __u16 value_len; |
5476 | name_len -= 4; | |
5477 | temp_ptr += 4; | |
50c2f753 SF |
5478 | value_len = |
5479 | le16_to_cpu(temp_fea->value_len); | |
5480 | /* BB validate that value_len falls within SMB, | |
5481 | even though maximum for name_len is 255 */ | |
790fe579 | 5482 | if (memcmp(temp_fea->name, ea_name, |
1da177e4 LT |
5483 | temp_fea->name_len) == 0) { |
5484 | /* found a match */ | |
5485 | rc = value_len; | |
5486 | /* account for prefix user. and trailing null */ | |
790fe579 | 5487 | if (rc <= (int)buf_size) { |
1da177e4 LT |
5488 | memcpy(ea_value, |
5489 | temp_fea->name+temp_fea->name_len+1, | |
5490 | rc); | |
50c2f753 SF |
5491 | /* ea values, unlike ea |
5492 | names, are not null | |
5493 | terminated */ | |
790fe579 | 5494 | } else if (buf_size == 0) { |
1da177e4 LT |
5495 | /* skip copy - calc size only */ |
5496 | } else { | |
50c2f753 | 5497 | /* stop before overrun buffer */ |
1da177e4 LT |
5498 | rc = -ERANGE; |
5499 | } | |
5500 | break; | |
5501 | } | |
5502 | name_len -= temp_fea->name_len; | |
5503 | temp_ptr += temp_fea->name_len; | |
5504 | /* account for trailing null */ | |
5505 | name_len--; | |
5506 | temp_ptr++; | |
5507 | name_len -= value_len; | |
5508 | temp_ptr += value_len; | |
50c2f753 SF |
5509 | /* No trailing null to account for in |
5510 | value_len. Go on to next EA */ | |
1da177e4 LT |
5511 | temp_fea = (struct fea *)temp_ptr; |
5512 | } | |
50c2f753 | 5513 | } |
1da177e4 LT |
5514 | } |
5515 | } | |
5516 | if (pSMB) | |
5517 | cifs_buf_release(pSMB); | |
5518 | if (rc == -EAGAIN) | |
5519 | goto QEARetry; | |
5520 | ||
5521 | return (ssize_t)rc; | |
5522 | } | |
5523 | ||
5524 | int | |
5525 | CIFSSMBSetEA(const int xid, struct cifsTconInfo *tcon, const char *fileName, | |
50c2f753 SF |
5526 | const char *ea_name, const void *ea_value, |
5527 | const __u16 ea_value_len, const struct nls_table *nls_codepage, | |
5528 | int remap) | |
1da177e4 LT |
5529 | { |
5530 | struct smb_com_transaction2_spi_req *pSMB = NULL; | |
5531 | struct smb_com_transaction2_spi_rsp *pSMBr = NULL; | |
5532 | struct fealist *parm_data; | |
5533 | int name_len; | |
5534 | int rc = 0; | |
5535 | int bytes_returned = 0; | |
5536 | __u16 params, param_offset, byte_count, offset, count; | |
5537 | ||
5538 | cFYI(1, ("In SetEA")); | |
5539 | SetEARetry: | |
5540 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
5541 | (void **) &pSMBr); | |
5542 | if (rc) | |
5543 | return rc; | |
5544 | ||
5545 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
5546 | name_len = | |
50c2f753 | 5547 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 5548 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
5549 | name_len++; /* trailing null */ |
5550 | name_len *= 2; | |
50c2f753 | 5551 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
5552 | name_len = strnlen(fileName, PATH_MAX); |
5553 | name_len++; /* trailing null */ | |
5554 | strncpy(pSMB->FileName, fileName, name_len); | |
5555 | } | |
5556 | ||
5557 | params = 6 + name_len; | |
5558 | ||
5559 | /* done calculating parms using name_len of file name, | |
5560 | now use name_len to calculate length of ea name | |
5561 | we are going to create in the inode xattrs */ | |
790fe579 | 5562 | if (ea_name == NULL) |
1da177e4 LT |
5563 | name_len = 0; |
5564 | else | |
50c2f753 | 5565 | name_len = strnlen(ea_name, 255); |
1da177e4 | 5566 | |
dae5dbdb | 5567 | count = sizeof(*parm_data) + ea_value_len + name_len; |
1da177e4 LT |
5568 | pSMB->MaxParameterCount = cpu_to_le16(2); |
5569 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB size from sess */ | |
5570 | pSMB->MaxSetupCount = 0; | |
5571 | pSMB->Reserved = 0; | |
5572 | pSMB->Flags = 0; | |
5573 | pSMB->Timeout = 0; | |
5574 | pSMB->Reserved2 = 0; | |
5575 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 5576 | InformationLevel) - 4; |
1da177e4 LT |
5577 | offset = param_offset + params; |
5578 | pSMB->InformationLevel = | |
5579 | cpu_to_le16(SMB_SET_FILE_EA); | |
5580 | ||
5581 | parm_data = | |
5582 | (struct fealist *) (((char *) &pSMB->hdr.Protocol) + | |
5583 | offset); | |
5584 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
5585 | pSMB->DataOffset = cpu_to_le16(offset); | |
5586 | pSMB->SetupCount = 1; | |
5587 | pSMB->Reserved3 = 0; | |
5588 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
5589 | byte_count = 3 /* pad */ + params + count; | |
5590 | pSMB->DataCount = cpu_to_le16(count); | |
5591 | parm_data->list_len = cpu_to_le32(count); | |
5592 | parm_data->list[0].EA_flags = 0; | |
5593 | /* we checked above that name len is less than 255 */ | |
53b3531b | 5594 | parm_data->list[0].name_len = (__u8)name_len; |
1da177e4 | 5595 | /* EA names are always ASCII */ |
790fe579 | 5596 | if (ea_name) |
50c2f753 | 5597 | strncpy(parm_data->list[0].name, ea_name, name_len); |
1da177e4 LT |
5598 | parm_data->list[0].name[name_len] = 0; |
5599 | parm_data->list[0].value_len = cpu_to_le16(ea_value_len); | |
5600 | /* caller ensures that ea_value_len is less than 64K but | |
5601 | we need to ensure that it fits within the smb */ | |
5602 | ||
50c2f753 SF |
5603 | /*BB add length check to see if it would fit in |
5604 | negotiated SMB buffer size BB */ | |
790fe579 SF |
5605 | /* if (ea_value_len > buffer_size - 512 (enough for header)) */ |
5606 | if (ea_value_len) | |
50c2f753 SF |
5607 | memcpy(parm_data->list[0].name+name_len+1, |
5608 | ea_value, ea_value_len); | |
1da177e4 LT |
5609 | |
5610 | pSMB->TotalDataCount = pSMB->DataCount; | |
5611 | pSMB->ParameterCount = cpu_to_le16(params); | |
5612 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
5613 | pSMB->Reserved4 = 0; | |
5614 | pSMB->hdr.smb_buf_length += byte_count; | |
5615 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
5616 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
5617 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
5618 | if (rc) { | |
5619 | cFYI(1, ("SetPathInfo (EA) returned %d", rc)); | |
5620 | } | |
5621 | ||
5622 | cifs_buf_release(pSMB); | |
5623 | ||
5624 | if (rc == -EAGAIN) | |
5625 | goto SetEARetry; | |
5626 | ||
5627 | return rc; | |
5628 | } | |
5629 | ||
5630 | #endif |