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1da177e4 LT |
1 | /* |
2 | * fs/cifs/cifssmb.c | |
3 | * | |
f19159dc | 4 | * Copyright (C) International Business Machines Corp., 2002,2010 |
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> | |
5a0e3ad6 | 33 | #include <linux/slab.h> |
1da177e4 LT |
34 | #include <linux/posix_acl_xattr.h> |
35 | #include <asm/uaccess.h> | |
36 | #include "cifspdu.h" | |
37 | #include "cifsglob.h" | |
d0d66c44 | 38 | #include "cifsacl.h" |
1da177e4 LT |
39 | #include "cifsproto.h" |
40 | #include "cifs_unicode.h" | |
41 | #include "cifs_debug.h" | |
42 | ||
43 | #ifdef CONFIG_CIFS_POSIX | |
44 | static struct { | |
45 | int index; | |
46 | char *name; | |
47 | } protocols[] = { | |
3979877e SF |
48 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
49 | {LANMAN_PROT, "\2LM1.2X002"}, | |
9ac00b7d | 50 | {LANMAN2_PROT, "\2LANMAN2.1"}, |
3979877e | 51 | #endif /* weak password hashing for legacy clients */ |
50c2f753 | 52 | {CIFS_PROT, "\2NT LM 0.12"}, |
3979877e | 53 | {POSIX_PROT, "\2POSIX 2"}, |
1da177e4 LT |
54 | {BAD_PROT, "\2"} |
55 | }; | |
56 | #else | |
57 | static struct { | |
58 | int index; | |
59 | char *name; | |
60 | } protocols[] = { | |
3979877e SF |
61 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
62 | {LANMAN_PROT, "\2LM1.2X002"}, | |
18f75ca0 | 63 | {LANMAN2_PROT, "\2LANMAN2.1"}, |
3979877e | 64 | #endif /* weak password hashing for legacy clients */ |
790fe579 | 65 | {CIFS_PROT, "\2NT LM 0.12"}, |
1da177e4 LT |
66 | {BAD_PROT, "\2"} |
67 | }; | |
68 | #endif | |
69 | ||
3979877e SF |
70 | /* define the number of elements in the cifs dialect array */ |
71 | #ifdef CONFIG_CIFS_POSIX | |
72 | #ifdef CONFIG_CIFS_WEAK_PW_HASH | |
9ac00b7d | 73 | #define CIFS_NUM_PROT 4 |
3979877e SF |
74 | #else |
75 | #define CIFS_NUM_PROT 2 | |
76 | #endif /* CIFS_WEAK_PW_HASH */ | |
77 | #else /* not posix */ | |
78 | #ifdef CONFIG_CIFS_WEAK_PW_HASH | |
9ac00b7d | 79 | #define CIFS_NUM_PROT 3 |
3979877e SF |
80 | #else |
81 | #define CIFS_NUM_PROT 1 | |
82 | #endif /* CONFIG_CIFS_WEAK_PW_HASH */ | |
83 | #endif /* CIFS_POSIX */ | |
84 | ||
1da177e4 LT |
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); |
ad8b15f0 | 97 | open_file->invalidHandle = true; |
3bc303c2 | 98 | open_file->oplock_break_cancelled = 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 | ||
9162ab20 JL |
105 | /* reconnect the socket, tcon, and smb session if needed */ |
106 | static int | |
107 | cifs_reconnect_tcon(struct cifsTconInfo *tcon, int smb_command) | |
108 | { | |
109 | int rc = 0; | |
110 | struct cifsSesInfo *ses; | |
111 | struct TCP_Server_Info *server; | |
112 | struct nls_table *nls_codepage; | |
113 | ||
114 | /* | |
115 | * SMBs NegProt, SessSetup, uLogoff do not have tcon yet so check for | |
116 | * tcp and smb session status done differently for those three - in the | |
117 | * calling routine | |
118 | */ | |
119 | if (!tcon) | |
120 | return 0; | |
121 | ||
122 | ses = tcon->ses; | |
123 | server = ses->server; | |
124 | ||
125 | /* | |
126 | * only tree disconnect, open, and write, (and ulogoff which does not | |
127 | * have tcon) are allowed as we start force umount | |
128 | */ | |
129 | if (tcon->tidStatus == CifsExiting) { | |
130 | if (smb_command != SMB_COM_WRITE_ANDX && | |
131 | smb_command != SMB_COM_OPEN_ANDX && | |
132 | smb_command != SMB_COM_TREE_DISCONNECT) { | |
b6b38f70 JP |
133 | cFYI(1, "can not send cmd %d while umounting", |
134 | smb_command); | |
9162ab20 JL |
135 | return -ENODEV; |
136 | } | |
137 | } | |
138 | ||
139 | if (ses->status == CifsExiting) | |
140 | return -EIO; | |
141 | ||
142 | /* | |
143 | * Give demultiplex thread up to 10 seconds to reconnect, should be | |
144 | * greater than cifs socket timeout which is 7 seconds | |
145 | */ | |
146 | while (server->tcpStatus == CifsNeedReconnect) { | |
147 | wait_event_interruptible_timeout(server->response_q, | |
148 | (server->tcpStatus == CifsGood), 10 * HZ); | |
149 | ||
150 | /* is TCP session is reestablished now ?*/ | |
151 | if (server->tcpStatus != CifsNeedReconnect) | |
152 | break; | |
153 | ||
154 | /* | |
155 | * on "soft" mounts we wait once. Hard mounts keep | |
156 | * retrying until process is killed or server comes | |
157 | * back on-line | |
158 | */ | |
159 | if (!tcon->retry || ses->status == CifsExiting) { | |
b6b38f70 | 160 | cFYI(1, "gave up waiting on reconnect in smb_init"); |
9162ab20 JL |
161 | return -EHOSTDOWN; |
162 | } | |
163 | } | |
164 | ||
165 | if (!ses->need_reconnect && !tcon->need_reconnect) | |
166 | return 0; | |
167 | ||
168 | nls_codepage = load_nls_default(); | |
169 | ||
170 | /* | |
171 | * need to prevent multiple threads trying to simultaneously | |
172 | * reconnect the same SMB session | |
173 | */ | |
d7b619cf | 174 | mutex_lock(&ses->session_mutex); |
198b5682 JL |
175 | rc = cifs_negotiate_protocol(0, ses); |
176 | if (rc == 0 && ses->need_reconnect) | |
9162ab20 JL |
177 | rc = cifs_setup_session(0, ses, nls_codepage); |
178 | ||
179 | /* do we need to reconnect tcon? */ | |
180 | if (rc || !tcon->need_reconnect) { | |
d7b619cf | 181 | mutex_unlock(&ses->session_mutex); |
9162ab20 JL |
182 | goto out; |
183 | } | |
184 | ||
185 | mark_open_files_invalid(tcon); | |
186 | rc = CIFSTCon(0, ses, tcon->treeName, tcon, nls_codepage); | |
d7b619cf | 187 | mutex_unlock(&ses->session_mutex); |
b6b38f70 | 188 | cFYI(1, "reconnect tcon rc = %d", rc); |
9162ab20 JL |
189 | |
190 | if (rc) | |
191 | goto out; | |
192 | ||
193 | /* | |
194 | * FIXME: check if wsize needs updated due to negotiated smb buffer | |
195 | * size shrinking | |
196 | */ | |
197 | atomic_inc(&tconInfoReconnectCount); | |
198 | ||
199 | /* tell server Unix caps we support */ | |
200 | if (ses->capabilities & CAP_UNIX) | |
201 | reset_cifs_unix_caps(0, tcon, NULL, NULL); | |
202 | ||
203 | /* | |
204 | * Removed call to reopen open files here. It is safer (and faster) to | |
205 | * reopen files one at a time as needed in read and write. | |
206 | * | |
207 | * FIXME: what about file locks? don't we need to reclaim them ASAP? | |
208 | */ | |
209 | ||
210 | out: | |
211 | /* | |
212 | * Check if handle based operation so we know whether we can continue | |
213 | * or not without returning to caller to reset file handle | |
214 | */ | |
215 | switch (smb_command) { | |
216 | case SMB_COM_READ_ANDX: | |
217 | case SMB_COM_WRITE_ANDX: | |
218 | case SMB_COM_CLOSE: | |
219 | case SMB_COM_FIND_CLOSE2: | |
220 | case SMB_COM_LOCKING_ANDX: | |
221 | rc = -EAGAIN; | |
222 | } | |
223 | ||
224 | unload_nls(nls_codepage); | |
225 | return rc; | |
226 | } | |
227 | ||
ad7a2926 SF |
228 | /* Allocate and return pointer to an SMB request buffer, and set basic |
229 | SMB information in the SMB header. If the return code is zero, this | |
230 | function must have filled in request_buf pointer */ | |
1da177e4 LT |
231 | static int |
232 | small_smb_init(int smb_command, int wct, struct cifsTconInfo *tcon, | |
ad7a2926 | 233 | void **request_buf) |
1da177e4 | 234 | { |
f569599a | 235 | int rc; |
1da177e4 | 236 | |
9162ab20 | 237 | rc = cifs_reconnect_tcon(tcon, smb_command); |
790fe579 | 238 | if (rc) |
1da177e4 LT |
239 | return rc; |
240 | ||
241 | *request_buf = cifs_small_buf_get(); | |
242 | if (*request_buf == NULL) { | |
243 | /* BB should we add a retry in here if not a writepage? */ | |
244 | return -ENOMEM; | |
245 | } | |
246 | ||
63135e08 | 247 | header_assemble((struct smb_hdr *) *request_buf, smb_command, |
c18c842b | 248 | tcon, wct); |
1da177e4 | 249 | |
790fe579 SF |
250 | if (tcon != NULL) |
251 | cifs_stats_inc(&tcon->num_smbs_sent); | |
a4544347 | 252 | |
f569599a | 253 | return 0; |
5815449d SF |
254 | } |
255 | ||
12b3b8ff | 256 | int |
50c2f753 | 257 | small_smb_init_no_tc(const int smb_command, const int wct, |
5815449d | 258 | struct cifsSesInfo *ses, void **request_buf) |
12b3b8ff SF |
259 | { |
260 | int rc; | |
50c2f753 | 261 | struct smb_hdr *buffer; |
12b3b8ff | 262 | |
5815449d | 263 | rc = small_smb_init(smb_command, wct, NULL, request_buf); |
790fe579 | 264 | if (rc) |
12b3b8ff SF |
265 | return rc; |
266 | ||
04fdabe1 | 267 | buffer = (struct smb_hdr *)*request_buf; |
12b3b8ff SF |
268 | buffer->Mid = GetNextMid(ses->server); |
269 | if (ses->capabilities & CAP_UNICODE) | |
270 | buffer->Flags2 |= SMBFLG2_UNICODE; | |
04fdabe1 | 271 | if (ses->capabilities & CAP_STATUS32) |
12b3b8ff SF |
272 | buffer->Flags2 |= SMBFLG2_ERR_STATUS; |
273 | ||
274 | /* uid, tid can stay at zero as set in header assemble */ | |
275 | ||
50c2f753 | 276 | /* BB add support for turning on the signing when |
12b3b8ff SF |
277 | this function is used after 1st of session setup requests */ |
278 | ||
279 | return rc; | |
280 | } | |
1da177e4 LT |
281 | |
282 | /* If the return code is zero, this function must fill in request_buf pointer */ | |
283 | static int | |
f569599a JL |
284 | __smb_init(int smb_command, int wct, struct cifsTconInfo *tcon, |
285 | void **request_buf, void **response_buf) | |
1da177e4 | 286 | { |
1da177e4 LT |
287 | *request_buf = cifs_buf_get(); |
288 | if (*request_buf == NULL) { | |
289 | /* BB should we add a retry in here if not a writepage? */ | |
290 | return -ENOMEM; | |
291 | } | |
292 | /* Although the original thought was we needed the response buf for */ | |
293 | /* potential retries of smb operations it turns out we can determine */ | |
294 | /* from the mid flags when the request buffer can be resent without */ | |
295 | /* having to use a second distinct buffer for the response */ | |
790fe579 | 296 | if (response_buf) |
50c2f753 | 297 | *response_buf = *request_buf; |
1da177e4 LT |
298 | |
299 | header_assemble((struct smb_hdr *) *request_buf, smb_command, tcon, | |
ad7a2926 | 300 | wct); |
1da177e4 | 301 | |
790fe579 SF |
302 | if (tcon != NULL) |
303 | cifs_stats_inc(&tcon->num_smbs_sent); | |
a4544347 | 304 | |
f569599a JL |
305 | return 0; |
306 | } | |
307 | ||
308 | /* If the return code is zero, this function must fill in request_buf pointer */ | |
309 | static int | |
310 | smb_init(int smb_command, int wct, struct cifsTconInfo *tcon, | |
311 | void **request_buf, void **response_buf) | |
312 | { | |
313 | int rc; | |
314 | ||
315 | rc = cifs_reconnect_tcon(tcon, smb_command); | |
316 | if (rc) | |
317 | return rc; | |
318 | ||
319 | return __smb_init(smb_command, wct, tcon, request_buf, response_buf); | |
320 | } | |
321 | ||
322 | static int | |
323 | smb_init_no_reconnect(int smb_command, int wct, struct cifsTconInfo *tcon, | |
324 | void **request_buf, void **response_buf) | |
325 | { | |
326 | if (tcon->ses->need_reconnect || tcon->need_reconnect) | |
327 | return -EHOSTDOWN; | |
328 | ||
329 | return __smb_init(smb_command, wct, tcon, request_buf, response_buf); | |
1da177e4 LT |
330 | } |
331 | ||
50c2f753 | 332 | static int validate_t2(struct smb_t2_rsp *pSMB) |
1da177e4 LT |
333 | { |
334 | int rc = -EINVAL; | |
335 | int total_size; | |
50c2f753 | 336 | char *pBCC; |
1da177e4 LT |
337 | |
338 | /* check for plausible wct, bcc and t2 data and parm sizes */ | |
339 | /* check for parm and data offset going beyond end of smb */ | |
790fe579 SF |
340 | if (pSMB->hdr.WordCount >= 10) { |
341 | if ((le16_to_cpu(pSMB->t2_rsp.ParameterOffset) <= 1024) && | |
1da177e4 LT |
342 | (le16_to_cpu(pSMB->t2_rsp.DataOffset) <= 1024)) { |
343 | /* check that bcc is at least as big as parms + data */ | |
344 | /* check that bcc is less than negotiated smb buffer */ | |
345 | total_size = le16_to_cpu(pSMB->t2_rsp.ParameterCount); | |
790fe579 | 346 | if (total_size < 512) { |
c18c842b | 347 | total_size += |
63135e08 | 348 | le16_to_cpu(pSMB->t2_rsp.DataCount); |
1da177e4 | 349 | /* BCC le converted in SendReceive */ |
50c2f753 | 350 | pBCC = (pSMB->hdr.WordCount * 2) + |
09d1db5c | 351 | sizeof(struct smb_hdr) + |
1da177e4 | 352 | (char *)pSMB; |
790fe579 | 353 | if ((total_size <= (*(u16 *)pBCC)) && |
50c2f753 | 354 | (total_size < |
1da177e4 LT |
355 | CIFSMaxBufSize+MAX_CIFS_HDR_SIZE)) { |
356 | return 0; | |
357 | } | |
1da177e4 LT |
358 | } |
359 | } | |
360 | } | |
50c2f753 | 361 | cifs_dump_mem("Invalid transact2 SMB: ", (char *)pSMB, |
1da177e4 LT |
362 | sizeof(struct smb_t2_rsp) + 16); |
363 | return rc; | |
364 | } | |
365 | int | |
366 | CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) | |
367 | { | |
368 | NEGOTIATE_REQ *pSMB; | |
369 | NEGOTIATE_RSP *pSMBr; | |
370 | int rc = 0; | |
371 | int bytes_returned; | |
3979877e | 372 | int i; |
50c2f753 | 373 | struct TCP_Server_Info *server; |
1da177e4 | 374 | u16 count; |
750d1151 | 375 | unsigned int secFlags; |
1da177e4 | 376 | |
790fe579 | 377 | if (ses->server) |
1da177e4 LT |
378 | server = ses->server; |
379 | else { | |
380 | rc = -EIO; | |
381 | return rc; | |
382 | } | |
383 | rc = smb_init(SMB_COM_NEGOTIATE, 0, NULL /* no tcon yet */ , | |
384 | (void **) &pSMB, (void **) &pSMBr); | |
385 | if (rc) | |
386 | return rc; | |
750d1151 SF |
387 | |
388 | /* if any of auth flags (ie not sign or seal) are overriden use them */ | |
790fe579 | 389 | if (ses->overrideSecFlg & (~(CIFSSEC_MUST_SIGN | CIFSSEC_MUST_SEAL))) |
762e5ab7 | 390 | secFlags = ses->overrideSecFlg; /* BB FIXME fix sign flags? */ |
750d1151 | 391 | else /* if override flags set only sign/seal OR them with global auth */ |
04912d6a | 392 | secFlags = global_secflags | ses->overrideSecFlg; |
750d1151 | 393 | |
b6b38f70 | 394 | cFYI(1, "secFlags 0x%x", secFlags); |
f40c5628 | 395 | |
1982c344 | 396 | pSMB->hdr.Mid = GetNextMid(server); |
100c1ddc | 397 | pSMB->hdr.Flags2 |= (SMBFLG2_UNICODE | SMBFLG2_ERR_STATUS); |
a013689d | 398 | |
100c1ddc | 399 | if ((secFlags & CIFSSEC_MUST_KRB5) == CIFSSEC_MUST_KRB5) |
254e55ed | 400 | pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC; |
a013689d | 401 | else if ((secFlags & CIFSSEC_AUTH_MASK) == CIFSSEC_MAY_KRB5) { |
b6b38f70 | 402 | cFYI(1, "Kerberos only mechanism, enable extended security"); |
a013689d SF |
403 | pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC; |
404 | } | |
ac683924 SF |
405 | #ifdef CONFIG_CIFS_EXPERIMENTAL |
406 | else if ((secFlags & CIFSSEC_MUST_NTLMSSP) == CIFSSEC_MUST_NTLMSSP) | |
407 | pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC; | |
408 | else if ((secFlags & CIFSSEC_AUTH_MASK) == CIFSSEC_MAY_NTLMSSP) { | |
b6b38f70 | 409 | cFYI(1, "NTLMSSP only mechanism, enable extended security"); |
ac683924 SF |
410 | pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC; |
411 | } | |
412 | #endif | |
50c2f753 | 413 | |
3979877e | 414 | count = 0; |
50c2f753 | 415 | for (i = 0; i < CIFS_NUM_PROT; i++) { |
3979877e SF |
416 | strncpy(pSMB->DialectsArray+count, protocols[i].name, 16); |
417 | count += strlen(protocols[i].name) + 1; | |
418 | /* null at end of source and target buffers anyway */ | |
419 | } | |
1da177e4 LT |
420 | pSMB->hdr.smb_buf_length += count; |
421 | pSMB->ByteCount = cpu_to_le16(count); | |
422 | ||
423 | rc = SendReceive(xid, ses, (struct smb_hdr *) pSMB, | |
424 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
50c2f753 | 425 | if (rc != 0) |
254e55ed SF |
426 | goto neg_err_exit; |
427 | ||
9bf67e51 JL |
428 | server->dialect = le16_to_cpu(pSMBr->DialectIndex); |
429 | cFYI(1, "Dialect: %d", server->dialect); | |
254e55ed | 430 | /* Check wct = 1 error case */ |
9bf67e51 | 431 | if ((pSMBr->hdr.WordCount < 13) || (server->dialect == BAD_PROT)) { |
254e55ed | 432 | /* core returns wct = 1, but we do not ask for core - otherwise |
50c2f753 | 433 | small wct just comes when dialect index is -1 indicating we |
254e55ed SF |
434 | could not negotiate a common dialect */ |
435 | rc = -EOPNOTSUPP; | |
436 | goto neg_err_exit; | |
50c2f753 | 437 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
790fe579 | 438 | } else if ((pSMBr->hdr.WordCount == 13) |
9bf67e51 JL |
439 | && ((server->dialect == LANMAN_PROT) |
440 | || (server->dialect == LANMAN2_PROT))) { | |
b815f1e5 | 441 | __s16 tmp; |
50c2f753 | 442 | struct lanman_neg_rsp *rsp = (struct lanman_neg_rsp *)pSMBr; |
254e55ed | 443 | |
790fe579 | 444 | if ((secFlags & CIFSSEC_MAY_LANMAN) || |
750d1151 | 445 | (secFlags & CIFSSEC_MAY_PLNTXT)) |
254e55ed SF |
446 | server->secType = LANMAN; |
447 | else { | |
b6b38f70 JP |
448 | cERROR(1, "mount failed weak security disabled" |
449 | " in /proc/fs/cifs/SecurityFlags"); | |
3979877e SF |
450 | rc = -EOPNOTSUPP; |
451 | goto neg_err_exit; | |
50c2f753 | 452 | } |
254e55ed SF |
453 | server->secMode = (__u8)le16_to_cpu(rsp->SecurityMode); |
454 | server->maxReq = le16_to_cpu(rsp->MaxMpxCount); | |
455 | server->maxBuf = min((__u32)le16_to_cpu(rsp->MaxBufSize), | |
3979877e | 456 | (__u32)CIFSMaxBufSize + MAX_CIFS_HDR_SIZE); |
eca6acf9 | 457 | server->max_vcs = le16_to_cpu(rsp->MaxNumberVcs); |
254e55ed SF |
458 | GETU32(server->sessid) = le32_to_cpu(rsp->SessionKey); |
459 | /* even though we do not use raw we might as well set this | |
460 | accurately, in case we ever find a need for it */ | |
790fe579 | 461 | if ((le16_to_cpu(rsp->RawMode) & RAW_ENABLE) == RAW_ENABLE) { |
eca6acf9 | 462 | server->max_rw = 0xFF00; |
254e55ed SF |
463 | server->capabilities = CAP_MPX_MODE | CAP_RAW_MODE; |
464 | } else { | |
eca6acf9 | 465 | server->max_rw = 0;/* do not need to use raw anyway */ |
254e55ed SF |
466 | server->capabilities = CAP_MPX_MODE; |
467 | } | |
b815f1e5 | 468 | tmp = (__s16)le16_to_cpu(rsp->ServerTimeZone); |
1a70d652 | 469 | if (tmp == -1) { |
25ee4a98 SF |
470 | /* OS/2 often does not set timezone therefore |
471 | * we must use server time to calc time zone. | |
b815f1e5 SF |
472 | * Could deviate slightly from the right zone. |
473 | * Smallest defined timezone difference is 15 minutes | |
474 | * (i.e. Nepal). Rounding up/down is done to match | |
475 | * this requirement. | |
25ee4a98 | 476 | */ |
b815f1e5 | 477 | int val, seconds, remain, result; |
25ee4a98 SF |
478 | struct timespec ts, utc; |
479 | utc = CURRENT_TIME; | |
c4a2c08d JL |
480 | ts = cnvrtDosUnixTm(rsp->SrvTime.Date, |
481 | rsp->SrvTime.Time, 0); | |
b6b38f70 | 482 | cFYI(1, "SrvTime %d sec since 1970 (utc: %d) diff: %d", |
50c2f753 | 483 | (int)ts.tv_sec, (int)utc.tv_sec, |
b6b38f70 | 484 | (int)(utc.tv_sec - ts.tv_sec)); |
b815f1e5 | 485 | val = (int)(utc.tv_sec - ts.tv_sec); |
8594c15a | 486 | seconds = abs(val); |
947a5067 | 487 | result = (seconds / MIN_TZ_ADJ) * MIN_TZ_ADJ; |
b815f1e5 | 488 | remain = seconds % MIN_TZ_ADJ; |
790fe579 | 489 | if (remain >= (MIN_TZ_ADJ / 2)) |
b815f1e5 | 490 | result += MIN_TZ_ADJ; |
790fe579 | 491 | if (val < 0) |
ad7a2926 | 492 | result = -result; |
b815f1e5 | 493 | server->timeAdj = result; |
25ee4a98 | 494 | } else { |
b815f1e5 SF |
495 | server->timeAdj = (int)tmp; |
496 | server->timeAdj *= 60; /* also in seconds */ | |
25ee4a98 | 497 | } |
b6b38f70 | 498 | cFYI(1, "server->timeAdj: %d seconds", server->timeAdj); |
25ee4a98 | 499 | |
3979877e | 500 | |
254e55ed | 501 | /* BB get server time for time conversions and add |
50c2f753 | 502 | code to use it and timezone since this is not UTC */ |
3979877e | 503 | |
50c2f753 | 504 | if (rsp->EncryptionKeyLength == |
25ee4a98 | 505 | cpu_to_le16(CIFS_CRYPTO_KEY_SIZE)) { |
5d0d2882 | 506 | memcpy(ses->cryptKey, rsp->EncryptionKey, |
254e55ed SF |
507 | CIFS_CRYPTO_KEY_SIZE); |
508 | } else if (server->secMode & SECMODE_PW_ENCRYPT) { | |
509 | rc = -EIO; /* need cryptkey unless plain text */ | |
510 | goto neg_err_exit; | |
511 | } | |
3979877e | 512 | |
f19159dc | 513 | cFYI(1, "LANMAN negotiated"); |
254e55ed SF |
514 | /* we will not end up setting signing flags - as no signing |
515 | was in LANMAN and server did not return the flags on */ | |
516 | goto signing_check; | |
7c7b25bc | 517 | #else /* weak security disabled */ |
790fe579 | 518 | } else if (pSMBr->hdr.WordCount == 13) { |
f19159dc SF |
519 | cERROR(1, "mount failed, cifs module not built " |
520 | "with CIFS_WEAK_PW_HASH support"); | |
8212cf75 | 521 | rc = -EOPNOTSUPP; |
7c7b25bc | 522 | #endif /* WEAK_PW_HASH */ |
254e55ed | 523 | goto neg_err_exit; |
790fe579 | 524 | } else if (pSMBr->hdr.WordCount != 17) { |
254e55ed SF |
525 | /* unknown wct */ |
526 | rc = -EOPNOTSUPP; | |
527 | goto neg_err_exit; | |
528 | } | |
529 | /* else wct == 17 NTLM */ | |
530 | server->secMode = pSMBr->SecurityMode; | |
790fe579 | 531 | if ((server->secMode & SECMODE_USER) == 0) |
b6b38f70 | 532 | cFYI(1, "share mode security"); |
bdc4bf6e | 533 | |
790fe579 | 534 | if ((server->secMode & SECMODE_PW_ENCRYPT) == 0) |
bdc4bf6e | 535 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
750d1151 | 536 | if ((secFlags & CIFSSEC_MAY_PLNTXT) == 0) |
bdc4bf6e | 537 | #endif /* CIFS_WEAK_PW_HASH */ |
b6b38f70 JP |
538 | cERROR(1, "Server requests plain text password" |
539 | " but client support disabled"); | |
9312f675 | 540 | |
790fe579 | 541 | if ((secFlags & CIFSSEC_MUST_NTLMV2) == CIFSSEC_MUST_NTLMV2) |
254e55ed | 542 | server->secType = NTLMv2; |
790fe579 | 543 | else if (secFlags & CIFSSEC_MAY_NTLM) |
254e55ed | 544 | server->secType = NTLM; |
790fe579 | 545 | else if (secFlags & CIFSSEC_MAY_NTLMV2) |
f40c5628 | 546 | server->secType = NTLMv2; |
a013689d SF |
547 | else if (secFlags & CIFSSEC_MAY_KRB5) |
548 | server->secType = Kerberos; | |
ac683924 | 549 | else if (secFlags & CIFSSEC_MAY_NTLMSSP) |
f46c7234 | 550 | server->secType = RawNTLMSSP; |
a013689d SF |
551 | else if (secFlags & CIFSSEC_MAY_LANMAN) |
552 | server->secType = LANMAN; | |
553 | /* #ifdef CONFIG_CIFS_EXPERIMENTAL | |
554 | else if (secFlags & CIFSSEC_MAY_PLNTXT) | |
555 | server->secType = ?? | |
556 | #endif */ | |
557 | else { | |
558 | rc = -EOPNOTSUPP; | |
b6b38f70 | 559 | cERROR(1, "Invalid security type"); |
a013689d SF |
560 | goto neg_err_exit; |
561 | } | |
562 | /* else ... any others ...? */ | |
254e55ed SF |
563 | |
564 | /* one byte, so no need to convert this or EncryptionKeyLen from | |
565 | little endian */ | |
566 | server->maxReq = le16_to_cpu(pSMBr->MaxMpxCount); | |
567 | /* probably no need to store and check maxvcs */ | |
568 | server->maxBuf = min(le32_to_cpu(pSMBr->MaxBufferSize), | |
1da177e4 | 569 | (__u32) CIFSMaxBufSize + MAX_CIFS_HDR_SIZE); |
eca6acf9 | 570 | server->max_rw = le32_to_cpu(pSMBr->MaxRawSize); |
b6b38f70 | 571 | cFYI(DBG2, "Max buf = %d", ses->server->maxBuf); |
254e55ed SF |
572 | GETU32(ses->server->sessid) = le32_to_cpu(pSMBr->SessionKey); |
573 | server->capabilities = le32_to_cpu(pSMBr->Capabilities); | |
b815f1e5 SF |
574 | server->timeAdj = (int)(__s16)le16_to_cpu(pSMBr->ServerTimeZone); |
575 | server->timeAdj *= 60; | |
254e55ed | 576 | if (pSMBr->EncryptionKeyLength == CIFS_CRYPTO_KEY_SIZE) { |
5d0d2882 | 577 | memcpy(ses->cryptKey, pSMBr->u.EncryptionKey, |
254e55ed SF |
578 | CIFS_CRYPTO_KEY_SIZE); |
579 | } else if ((pSMBr->hdr.Flags2 & SMBFLG2_EXT_SEC) | |
580 | && (pSMBr->EncryptionKeyLength == 0)) { | |
581 | /* decode security blob */ | |
582 | } else if (server->secMode & SECMODE_PW_ENCRYPT) { | |
583 | rc = -EIO; /* no crypt key only if plain text pwd */ | |
584 | goto neg_err_exit; | |
585 | } | |
1da177e4 | 586 | |
254e55ed SF |
587 | /* BB might be helpful to save off the domain of server here */ |
588 | ||
50c2f753 | 589 | if ((pSMBr->hdr.Flags2 & SMBFLG2_EXT_SEC) && |
254e55ed SF |
590 | (server->capabilities & CAP_EXTENDED_SECURITY)) { |
591 | count = pSMBr->ByteCount; | |
e187e44e | 592 | if (count < 16) { |
254e55ed | 593 | rc = -EIO; |
e187e44e JL |
594 | goto neg_err_exit; |
595 | } | |
e7ddee90 JL |
596 | read_lock(&cifs_tcp_ses_lock); |
597 | if (server->srv_count > 1) { | |
598 | read_unlock(&cifs_tcp_ses_lock); | |
e187e44e JL |
599 | if (memcmp(server->server_GUID, |
600 | pSMBr->u.extended_response. | |
601 | GUID, 16) != 0) { | |
b6b38f70 | 602 | cFYI(1, "server UID changed"); |
254e55ed | 603 | memcpy(server->server_GUID, |
e187e44e JL |
604 | pSMBr->u.extended_response.GUID, |
605 | 16); | |
606 | } | |
e7ddee90 JL |
607 | } else { |
608 | read_unlock(&cifs_tcp_ses_lock); | |
e187e44e JL |
609 | memcpy(server->server_GUID, |
610 | pSMBr->u.extended_response.GUID, 16); | |
e7ddee90 | 611 | } |
e187e44e JL |
612 | |
613 | if (count == 16) { | |
614 | server->secType = RawNTLMSSP; | |
254e55ed SF |
615 | } else { |
616 | rc = decode_negTokenInit(pSMBr->u.extended_response. | |
26efa0ba JL |
617 | SecurityBlob, count - 16, |
618 | server); | |
ef571cad | 619 | if (rc == 1) |
e545937a | 620 | rc = 0; |
ef571cad | 621 | else |
254e55ed | 622 | rc = -EINVAL; |
2b149f11 SP |
623 | if (server->secType == Kerberos) { |
624 | if (!server->sec_kerberos && | |
625 | !server->sec_mskerberos) | |
626 | rc = -EOPNOTSUPP; | |
627 | } else if (server->secType == RawNTLMSSP) { | |
628 | if (!server->sec_ntlmssp) | |
629 | rc = -EOPNOTSUPP; | |
630 | } else | |
631 | rc = -EOPNOTSUPP; | |
1da177e4 | 632 | } |
254e55ed SF |
633 | } else |
634 | server->capabilities &= ~CAP_EXTENDED_SECURITY; | |
635 | ||
6344a423 | 636 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
254e55ed | 637 | signing_check: |
6344a423 | 638 | #endif |
762e5ab7 SF |
639 | if ((secFlags & CIFSSEC_MAY_SIGN) == 0) { |
640 | /* MUST_SIGN already includes the MAY_SIGN FLAG | |
641 | so if this is zero it means that signing is disabled */ | |
b6b38f70 | 642 | cFYI(1, "Signing disabled"); |
abb63d6c | 643 | if (server->secMode & SECMODE_SIGN_REQUIRED) { |
b6b38f70 | 644 | cERROR(1, "Server requires " |
7111d214 | 645 | "packet signing to be enabled in " |
b6b38f70 | 646 | "/proc/fs/cifs/SecurityFlags."); |
abb63d6c SF |
647 | rc = -EOPNOTSUPP; |
648 | } | |
50c2f753 | 649 | server->secMode &= |
254e55ed | 650 | ~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED); |
762e5ab7 SF |
651 | } else if ((secFlags & CIFSSEC_MUST_SIGN) == CIFSSEC_MUST_SIGN) { |
652 | /* signing required */ | |
b6b38f70 | 653 | cFYI(1, "Must sign - secFlags 0x%x", secFlags); |
762e5ab7 SF |
654 | if ((server->secMode & |
655 | (SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED)) == 0) { | |
b6b38f70 | 656 | cERROR(1, "signing required but server lacks support"); |
38c10a1d | 657 | rc = -EOPNOTSUPP; |
762e5ab7 SF |
658 | } else |
659 | server->secMode |= SECMODE_SIGN_REQUIRED; | |
660 | } else { | |
661 | /* signing optional ie CIFSSEC_MAY_SIGN */ | |
790fe579 | 662 | if ((server->secMode & SECMODE_SIGN_REQUIRED) == 0) |
50c2f753 | 663 | server->secMode &= |
254e55ed | 664 | ~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED); |
1da177e4 | 665 | } |
50c2f753 SF |
666 | |
667 | neg_err_exit: | |
4a6d87f1 | 668 | cifs_buf_release(pSMB); |
254e55ed | 669 | |
b6b38f70 | 670 | cFYI(1, "negprot rc %d", rc); |
1da177e4 LT |
671 | return rc; |
672 | } | |
673 | ||
674 | int | |
675 | CIFSSMBTDis(const int xid, struct cifsTconInfo *tcon) | |
676 | { | |
677 | struct smb_hdr *smb_buffer; | |
1da177e4 | 678 | int rc = 0; |
1da177e4 | 679 | |
b6b38f70 | 680 | cFYI(1, "In tree disconnect"); |
1da177e4 | 681 | |
f1987b44 JL |
682 | /* BB: do we need to check this? These should never be NULL. */ |
683 | if ((tcon->ses == NULL) || (tcon->ses->server == NULL)) | |
684 | return -EIO; | |
1da177e4 | 685 | |
f1987b44 JL |
686 | /* |
687 | * No need to return error on this operation if tid invalidated and | |
688 | * closed on server already e.g. due to tcp session crashing. Also, | |
689 | * the tcon is no longer on the list, so no need to take lock before | |
690 | * checking this. | |
691 | */ | |
268875b9 | 692 | if ((tcon->need_reconnect) || (tcon->ses->need_reconnect)) |
50c2f753 | 693 | return 0; |
1da177e4 | 694 | |
50c2f753 | 695 | rc = small_smb_init(SMB_COM_TREE_DISCONNECT, 0, tcon, |
09d1db5c | 696 | (void **)&smb_buffer); |
f1987b44 | 697 | if (rc) |
1da177e4 | 698 | return rc; |
133672ef SF |
699 | |
700 | rc = SendReceiveNoRsp(xid, tcon->ses, smb_buffer, 0); | |
1da177e4 | 701 | if (rc) |
b6b38f70 | 702 | cFYI(1, "Tree disconnect failed %d", rc); |
1da177e4 | 703 | |
50c2f753 | 704 | /* No need to return error on this operation if tid invalidated and |
f1987b44 | 705 | closed on server already e.g. due to tcp session crashing */ |
1da177e4 LT |
706 | if (rc == -EAGAIN) |
707 | rc = 0; | |
708 | ||
709 | return rc; | |
710 | } | |
711 | ||
712 | int | |
713 | CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses) | |
714 | { | |
1da177e4 LT |
715 | LOGOFF_ANDX_REQ *pSMB; |
716 | int rc = 0; | |
1da177e4 | 717 | |
b6b38f70 | 718 | cFYI(1, "In SMBLogoff for session disconnect"); |
3b795210 | 719 | |
14fbf50d JL |
720 | /* |
721 | * BB: do we need to check validity of ses and server? They should | |
722 | * always be valid since we have an active reference. If not, that | |
723 | * should probably be a BUG() | |
724 | */ | |
725 | if (!ses || !ses->server) | |
3b795210 SF |
726 | return -EIO; |
727 | ||
d7b619cf | 728 | mutex_lock(&ses->session_mutex); |
3b795210 SF |
729 | if (ses->need_reconnect) |
730 | goto session_already_dead; /* no need to send SMBlogoff if uid | |
731 | already closed due to reconnect */ | |
1da177e4 LT |
732 | rc = small_smb_init(SMB_COM_LOGOFF_ANDX, 2, NULL, (void **)&pSMB); |
733 | if (rc) { | |
d7b619cf | 734 | mutex_unlock(&ses->session_mutex); |
1da177e4 LT |
735 | return rc; |
736 | } | |
737 | ||
3b795210 | 738 | pSMB->hdr.Mid = GetNextMid(ses->server); |
1982c344 | 739 | |
3b795210 | 740 | if (ses->server->secMode & |
1da177e4 LT |
741 | (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) |
742 | pSMB->hdr.Flags2 |= SMBFLG2_SECURITY_SIGNATURE; | |
1da177e4 LT |
743 | |
744 | pSMB->hdr.Uid = ses->Suid; | |
745 | ||
746 | pSMB->AndXCommand = 0xFF; | |
133672ef | 747 | rc = SendReceiveNoRsp(xid, ses, (struct smb_hdr *) pSMB, 0); |
3b795210 | 748 | session_already_dead: |
d7b619cf | 749 | mutex_unlock(&ses->session_mutex); |
1da177e4 LT |
750 | |
751 | /* if session dead then we do not need to do ulogoff, | |
50c2f753 | 752 | since server closed smb session, no sense reporting |
1da177e4 LT |
753 | error */ |
754 | if (rc == -EAGAIN) | |
755 | rc = 0; | |
756 | return rc; | |
757 | } | |
758 | ||
2d785a50 SF |
759 | int |
760 | CIFSPOSIXDelFile(const int xid, struct cifsTconInfo *tcon, const char *fileName, | |
761 | __u16 type, const struct nls_table *nls_codepage, int remap) | |
762 | { | |
763 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
764 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
765 | struct unlink_psx_rq *pRqD; | |
766 | int name_len; | |
767 | int rc = 0; | |
768 | int bytes_returned = 0; | |
769 | __u16 params, param_offset, offset, byte_count; | |
770 | ||
b6b38f70 | 771 | cFYI(1, "In POSIX delete"); |
2d785a50 SF |
772 | PsxDelete: |
773 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
774 | (void **) &pSMBr); | |
775 | if (rc) | |
776 | return rc; | |
777 | ||
778 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
779 | name_len = | |
780 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, | |
781 | PATH_MAX, nls_codepage, remap); | |
782 | name_len++; /* trailing null */ | |
783 | name_len *= 2; | |
784 | } else { /* BB add path length overrun check */ | |
785 | name_len = strnlen(fileName, PATH_MAX); | |
786 | name_len++; /* trailing null */ | |
787 | strncpy(pSMB->FileName, fileName, name_len); | |
788 | } | |
789 | ||
790 | params = 6 + name_len; | |
791 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
792 | pSMB->MaxDataCount = 0; /* BB double check this with jra */ | |
793 | pSMB->MaxSetupCount = 0; | |
794 | pSMB->Reserved = 0; | |
795 | pSMB->Flags = 0; | |
796 | pSMB->Timeout = 0; | |
797 | pSMB->Reserved2 = 0; | |
798 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
799 | InformationLevel) - 4; | |
800 | offset = param_offset + params; | |
801 | ||
802 | /* Setup pointer to Request Data (inode type) */ | |
803 | pRqD = (struct unlink_psx_rq *)(((char *)&pSMB->hdr.Protocol) + offset); | |
804 | pRqD->type = cpu_to_le16(type); | |
805 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
806 | pSMB->DataOffset = cpu_to_le16(offset); | |
807 | pSMB->SetupCount = 1; | |
808 | pSMB->Reserved3 = 0; | |
809 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
810 | byte_count = 3 /* pad */ + params + sizeof(struct unlink_psx_rq); | |
811 | ||
812 | pSMB->DataCount = cpu_to_le16(sizeof(struct unlink_psx_rq)); | |
813 | pSMB->TotalDataCount = cpu_to_le16(sizeof(struct unlink_psx_rq)); | |
814 | pSMB->ParameterCount = cpu_to_le16(params); | |
815 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
816 | pSMB->InformationLevel = cpu_to_le16(SMB_POSIX_UNLINK); | |
817 | pSMB->Reserved4 = 0; | |
818 | pSMB->hdr.smb_buf_length += byte_count; | |
819 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
820 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
821 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
ad7a2926 | 822 | if (rc) |
b6b38f70 | 823 | cFYI(1, "Posix delete returned %d", rc); |
2d785a50 SF |
824 | cifs_buf_release(pSMB); |
825 | ||
826 | cifs_stats_inc(&tcon->num_deletes); | |
827 | ||
828 | if (rc == -EAGAIN) | |
829 | goto PsxDelete; | |
830 | ||
831 | return rc; | |
832 | } | |
833 | ||
1da177e4 | 834 | int |
737b758c SF |
835 | CIFSSMBDelFile(const int xid, struct cifsTconInfo *tcon, const char *fileName, |
836 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
837 | { |
838 | DELETE_FILE_REQ *pSMB = NULL; | |
839 | DELETE_FILE_RSP *pSMBr = NULL; | |
840 | int rc = 0; | |
841 | int bytes_returned; | |
842 | int name_len; | |
843 | ||
844 | DelFileRetry: | |
845 | rc = smb_init(SMB_COM_DELETE, 1, tcon, (void **) &pSMB, | |
846 | (void **) &pSMBr); | |
847 | if (rc) | |
848 | return rc; | |
849 | ||
850 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
851 | name_len = | |
50c2f753 | 852 | cifsConvertToUCS((__le16 *) pSMB->fileName, fileName, |
737b758c | 853 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
854 | name_len++; /* trailing null */ |
855 | name_len *= 2; | |
09d1db5c | 856 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
857 | name_len = strnlen(fileName, PATH_MAX); |
858 | name_len++; /* trailing null */ | |
859 | strncpy(pSMB->fileName, fileName, name_len); | |
860 | } | |
861 | pSMB->SearchAttributes = | |
862 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM); | |
863 | pSMB->BufferFormat = 0x04; | |
864 | pSMB->hdr.smb_buf_length += name_len + 1; | |
865 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
866 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
867 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 868 | cifs_stats_inc(&tcon->num_deletes); |
ad7a2926 | 869 | if (rc) |
b6b38f70 | 870 | cFYI(1, "Error in RMFile = %d", rc); |
1da177e4 LT |
871 | |
872 | cifs_buf_release(pSMB); | |
873 | if (rc == -EAGAIN) | |
874 | goto DelFileRetry; | |
875 | ||
876 | return rc; | |
877 | } | |
878 | ||
879 | int | |
50c2f753 | 880 | CIFSSMBRmDir(const int xid, struct cifsTconInfo *tcon, const char *dirName, |
737b758c | 881 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
882 | { |
883 | DELETE_DIRECTORY_REQ *pSMB = NULL; | |
884 | DELETE_DIRECTORY_RSP *pSMBr = NULL; | |
885 | int rc = 0; | |
886 | int bytes_returned; | |
887 | int name_len; | |
888 | ||
b6b38f70 | 889 | cFYI(1, "In CIFSSMBRmDir"); |
1da177e4 LT |
890 | RmDirRetry: |
891 | rc = smb_init(SMB_COM_DELETE_DIRECTORY, 0, tcon, (void **) &pSMB, | |
892 | (void **) &pSMBr); | |
893 | if (rc) | |
894 | return rc; | |
895 | ||
896 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
737b758c SF |
897 | name_len = cifsConvertToUCS((__le16 *) pSMB->DirName, dirName, |
898 | PATH_MAX, nls_codepage, remap); | |
1da177e4 LT |
899 | name_len++; /* trailing null */ |
900 | name_len *= 2; | |
09d1db5c | 901 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
902 | name_len = strnlen(dirName, PATH_MAX); |
903 | name_len++; /* trailing null */ | |
904 | strncpy(pSMB->DirName, dirName, name_len); | |
905 | } | |
906 | ||
907 | pSMB->BufferFormat = 0x04; | |
908 | pSMB->hdr.smb_buf_length += name_len + 1; | |
909 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
910 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
911 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 912 | cifs_stats_inc(&tcon->num_rmdirs); |
ad7a2926 | 913 | if (rc) |
b6b38f70 | 914 | cFYI(1, "Error in RMDir = %d", rc); |
1da177e4 LT |
915 | |
916 | cifs_buf_release(pSMB); | |
917 | if (rc == -EAGAIN) | |
918 | goto RmDirRetry; | |
919 | return rc; | |
920 | } | |
921 | ||
922 | int | |
923 | CIFSSMBMkDir(const int xid, struct cifsTconInfo *tcon, | |
737b758c | 924 | const char *name, const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
925 | { |
926 | int rc = 0; | |
927 | CREATE_DIRECTORY_REQ *pSMB = NULL; | |
928 | CREATE_DIRECTORY_RSP *pSMBr = NULL; | |
929 | int bytes_returned; | |
930 | int name_len; | |
931 | ||
b6b38f70 | 932 | cFYI(1, "In CIFSSMBMkDir"); |
1da177e4 LT |
933 | MkDirRetry: |
934 | rc = smb_init(SMB_COM_CREATE_DIRECTORY, 0, tcon, (void **) &pSMB, | |
935 | (void **) &pSMBr); | |
936 | if (rc) | |
937 | return rc; | |
938 | ||
939 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
50c2f753 | 940 | name_len = cifsConvertToUCS((__le16 *) pSMB->DirName, name, |
737b758c | 941 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
942 | name_len++; /* trailing null */ |
943 | name_len *= 2; | |
09d1db5c | 944 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
945 | name_len = strnlen(name, PATH_MAX); |
946 | name_len++; /* trailing null */ | |
947 | strncpy(pSMB->DirName, name, name_len); | |
948 | } | |
949 | ||
950 | pSMB->BufferFormat = 0x04; | |
951 | pSMB->hdr.smb_buf_length += name_len + 1; | |
952 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
953 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
954 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 955 | cifs_stats_inc(&tcon->num_mkdirs); |
ad7a2926 | 956 | if (rc) |
b6b38f70 | 957 | cFYI(1, "Error in Mkdir = %d", rc); |
a5a2b489 | 958 | |
1da177e4 LT |
959 | cifs_buf_release(pSMB); |
960 | if (rc == -EAGAIN) | |
961 | goto MkDirRetry; | |
962 | return rc; | |
963 | } | |
964 | ||
2dd29d31 SF |
965 | int |
966 | CIFSPOSIXCreate(const int xid, struct cifsTconInfo *tcon, __u32 posix_flags, | |
ad7a2926 | 967 | __u64 mode, __u16 *netfid, FILE_UNIX_BASIC_INFO *pRetData, |
50c2f753 | 968 | __u32 *pOplock, const char *name, |
2dd29d31 SF |
969 | const struct nls_table *nls_codepage, int remap) |
970 | { | |
971 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
972 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
973 | int name_len; | |
974 | int rc = 0; | |
975 | int bytes_returned = 0; | |
2dd29d31 | 976 | __u16 params, param_offset, offset, byte_count, count; |
ad7a2926 SF |
977 | OPEN_PSX_REQ *pdata; |
978 | OPEN_PSX_RSP *psx_rsp; | |
2dd29d31 | 979 | |
b6b38f70 | 980 | cFYI(1, "In POSIX Create"); |
2dd29d31 SF |
981 | PsxCreat: |
982 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
983 | (void **) &pSMBr); | |
984 | if (rc) | |
985 | return rc; | |
986 | ||
987 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
988 | name_len = | |
989 | cifsConvertToUCS((__le16 *) pSMB->FileName, name, | |
990 | PATH_MAX, nls_codepage, remap); | |
991 | name_len++; /* trailing null */ | |
992 | name_len *= 2; | |
993 | } else { /* BB improve the check for buffer overruns BB */ | |
994 | name_len = strnlen(name, PATH_MAX); | |
995 | name_len++; /* trailing null */ | |
996 | strncpy(pSMB->FileName, name, name_len); | |
997 | } | |
998 | ||
999 | params = 6 + name_len; | |
1000 | count = sizeof(OPEN_PSX_REQ); | |
1001 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
1002 | pSMB->MaxDataCount = cpu_to_le16(1000); /* large enough */ | |
1003 | pSMB->MaxSetupCount = 0; | |
1004 | pSMB->Reserved = 0; | |
1005 | pSMB->Flags = 0; | |
1006 | pSMB->Timeout = 0; | |
1007 | pSMB->Reserved2 = 0; | |
1008 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 1009 | InformationLevel) - 4; |
2dd29d31 | 1010 | offset = param_offset + params; |
2dd29d31 | 1011 | pdata = (OPEN_PSX_REQ *)(((char *)&pSMB->hdr.Protocol) + offset); |
8f2376ad | 1012 | pdata->Level = cpu_to_le16(SMB_QUERY_FILE_UNIX_BASIC); |
2dd29d31 | 1013 | pdata->Permissions = cpu_to_le64(mode); |
50c2f753 | 1014 | pdata->PosixOpenFlags = cpu_to_le32(posix_flags); |
2dd29d31 SF |
1015 | pdata->OpenFlags = cpu_to_le32(*pOplock); |
1016 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
1017 | pSMB->DataOffset = cpu_to_le16(offset); | |
1018 | pSMB->SetupCount = 1; | |
1019 | pSMB->Reserved3 = 0; | |
1020 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
1021 | byte_count = 3 /* pad */ + params + count; | |
1022 | ||
1023 | pSMB->DataCount = cpu_to_le16(count); | |
1024 | pSMB->ParameterCount = cpu_to_le16(params); | |
1025 | pSMB->TotalDataCount = pSMB->DataCount; | |
1026 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
1027 | pSMB->InformationLevel = cpu_to_le16(SMB_POSIX_OPEN); | |
1028 | pSMB->Reserved4 = 0; | |
50c2f753 | 1029 | pSMB->hdr.smb_buf_length += byte_count; |
2dd29d31 SF |
1030 | pSMB->ByteCount = cpu_to_le16(byte_count); |
1031 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1032 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
1033 | if (rc) { | |
b6b38f70 | 1034 | cFYI(1, "Posix create returned %d", rc); |
2dd29d31 SF |
1035 | goto psx_create_err; |
1036 | } | |
1037 | ||
b6b38f70 | 1038 | cFYI(1, "copying inode info"); |
2dd29d31 SF |
1039 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
1040 | ||
1041 | if (rc || (pSMBr->ByteCount < sizeof(OPEN_PSX_RSP))) { | |
1042 | rc = -EIO; /* bad smb */ | |
1043 | goto psx_create_err; | |
1044 | } | |
1045 | ||
1046 | /* copy return information to pRetData */ | |
50c2f753 | 1047 | psx_rsp = (OPEN_PSX_RSP *)((char *) &pSMBr->hdr.Protocol |
2dd29d31 | 1048 | + le16_to_cpu(pSMBr->t2.DataOffset)); |
50c2f753 | 1049 | |
2dd29d31 | 1050 | *pOplock = le16_to_cpu(psx_rsp->OplockFlags); |
790fe579 | 1051 | if (netfid) |
2dd29d31 SF |
1052 | *netfid = psx_rsp->Fid; /* cifs fid stays in le */ |
1053 | /* Let caller know file was created so we can set the mode. */ | |
1054 | /* Do we care about the CreateAction in any other cases? */ | |
790fe579 | 1055 | if (cpu_to_le32(FILE_CREATE) == psx_rsp->CreateAction) |
2dd29d31 SF |
1056 | *pOplock |= CIFS_CREATE_ACTION; |
1057 | /* check to make sure response data is there */ | |
8f2376ad CG |
1058 | if (psx_rsp->ReturnedLevel != cpu_to_le16(SMB_QUERY_FILE_UNIX_BASIC)) { |
1059 | pRetData->Type = cpu_to_le32(-1); /* unknown */ | |
b6b38f70 | 1060 | cFYI(DBG2, "unknown type"); |
cbac3cba | 1061 | } else { |
790fe579 | 1062 | if (pSMBr->ByteCount < sizeof(OPEN_PSX_RSP) |
2dd29d31 | 1063 | + sizeof(FILE_UNIX_BASIC_INFO)) { |
b6b38f70 | 1064 | cERROR(1, "Open response data too small"); |
8f2376ad | 1065 | pRetData->Type = cpu_to_le32(-1); |
2dd29d31 SF |
1066 | goto psx_create_err; |
1067 | } | |
50c2f753 | 1068 | memcpy((char *) pRetData, |
cbac3cba | 1069 | (char *)psx_rsp + sizeof(OPEN_PSX_RSP), |
26f57364 | 1070 | sizeof(FILE_UNIX_BASIC_INFO)); |
2dd29d31 | 1071 | } |
2dd29d31 SF |
1072 | |
1073 | psx_create_err: | |
1074 | cifs_buf_release(pSMB); | |
1075 | ||
65bc98b0 SF |
1076 | if (posix_flags & SMB_O_DIRECTORY) |
1077 | cifs_stats_inc(&tcon->num_posixmkdirs); | |
1078 | else | |
1079 | cifs_stats_inc(&tcon->num_posixopens); | |
2dd29d31 SF |
1080 | |
1081 | if (rc == -EAGAIN) | |
1082 | goto PsxCreat; | |
1083 | ||
50c2f753 | 1084 | return rc; |
2dd29d31 SF |
1085 | } |
1086 | ||
a9d02ad4 SF |
1087 | static __u16 convert_disposition(int disposition) |
1088 | { | |
1089 | __u16 ofun = 0; | |
1090 | ||
1091 | switch (disposition) { | |
1092 | case FILE_SUPERSEDE: | |
1093 | ofun = SMBOPEN_OCREATE | SMBOPEN_OTRUNC; | |
1094 | break; | |
1095 | case FILE_OPEN: | |
1096 | ofun = SMBOPEN_OAPPEND; | |
1097 | break; | |
1098 | case FILE_CREATE: | |
1099 | ofun = SMBOPEN_OCREATE; | |
1100 | break; | |
1101 | case FILE_OPEN_IF: | |
1102 | ofun = SMBOPEN_OCREATE | SMBOPEN_OAPPEND; | |
1103 | break; | |
1104 | case FILE_OVERWRITE: | |
1105 | ofun = SMBOPEN_OTRUNC; | |
1106 | break; | |
1107 | case FILE_OVERWRITE_IF: | |
1108 | ofun = SMBOPEN_OCREATE | SMBOPEN_OTRUNC; | |
1109 | break; | |
1110 | default: | |
b6b38f70 | 1111 | cFYI(1, "unknown disposition %d", disposition); |
a9d02ad4 SF |
1112 | ofun = SMBOPEN_OAPPEND; /* regular open */ |
1113 | } | |
1114 | return ofun; | |
1115 | } | |
1116 | ||
35fc37d5 JL |
1117 | static int |
1118 | access_flags_to_smbopen_mode(const int access_flags) | |
1119 | { | |
1120 | int masked_flags = access_flags & (GENERIC_READ | GENERIC_WRITE); | |
1121 | ||
1122 | if (masked_flags == GENERIC_READ) | |
1123 | return SMBOPEN_READ; | |
1124 | else if (masked_flags == GENERIC_WRITE) | |
1125 | return SMBOPEN_WRITE; | |
1126 | ||
1127 | /* just go for read/write */ | |
1128 | return SMBOPEN_READWRITE; | |
1129 | } | |
1130 | ||
a9d02ad4 SF |
1131 | int |
1132 | SMBLegacyOpen(const int xid, struct cifsTconInfo *tcon, | |
1133 | const char *fileName, const int openDisposition, | |
ad7a2926 SF |
1134 | const int access_flags, const int create_options, __u16 *netfid, |
1135 | int *pOplock, FILE_ALL_INFO *pfile_info, | |
a9d02ad4 SF |
1136 | const struct nls_table *nls_codepage, int remap) |
1137 | { | |
1138 | int rc = -EACCES; | |
1139 | OPENX_REQ *pSMB = NULL; | |
1140 | OPENX_RSP *pSMBr = NULL; | |
1141 | int bytes_returned; | |
1142 | int name_len; | |
1143 | __u16 count; | |
1144 | ||
1145 | OldOpenRetry: | |
1146 | rc = smb_init(SMB_COM_OPEN_ANDX, 15, tcon, (void **) &pSMB, | |
1147 | (void **) &pSMBr); | |
1148 | if (rc) | |
1149 | return rc; | |
1150 | ||
1151 | pSMB->AndXCommand = 0xFF; /* none */ | |
1152 | ||
1153 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1154 | count = 1; /* account for one byte pad to word boundary */ | |
1155 | name_len = | |
1156 | cifsConvertToUCS((__le16 *) (pSMB->fileName + 1), | |
1157 | fileName, PATH_MAX, nls_codepage, remap); | |
1158 | name_len++; /* trailing null */ | |
1159 | name_len *= 2; | |
1160 | } else { /* BB improve check for buffer overruns BB */ | |
1161 | count = 0; /* no pad */ | |
1162 | name_len = strnlen(fileName, PATH_MAX); | |
1163 | name_len++; /* trailing null */ | |
1164 | strncpy(pSMB->fileName, fileName, name_len); | |
1165 | } | |
1166 | if (*pOplock & REQ_OPLOCK) | |
1167 | pSMB->OpenFlags = cpu_to_le16(REQ_OPLOCK); | |
26f57364 | 1168 | else if (*pOplock & REQ_BATCHOPLOCK) |
a9d02ad4 | 1169 | pSMB->OpenFlags = cpu_to_le16(REQ_BATCHOPLOCK); |
26f57364 | 1170 | |
a9d02ad4 | 1171 | pSMB->OpenFlags |= cpu_to_le16(REQ_MORE_INFO); |
35fc37d5 | 1172 | pSMB->Mode = cpu_to_le16(access_flags_to_smbopen_mode(access_flags)); |
a9d02ad4 SF |
1173 | pSMB->Mode |= cpu_to_le16(0x40); /* deny none */ |
1174 | /* set file as system file if special file such | |
1175 | as fifo and server expecting SFU style and | |
1176 | no Unix extensions */ | |
1177 | ||
790fe579 SF |
1178 | if (create_options & CREATE_OPTION_SPECIAL) |
1179 | pSMB->FileAttributes = cpu_to_le16(ATTR_SYSTEM); | |
ad7a2926 SF |
1180 | else /* BB FIXME BB */ |
1181 | pSMB->FileAttributes = cpu_to_le16(0/*ATTR_NORMAL*/); | |
a9d02ad4 | 1182 | |
67750fb9 JL |
1183 | if (create_options & CREATE_OPTION_READONLY) |
1184 | pSMB->FileAttributes |= cpu_to_le16(ATTR_READONLY); | |
a9d02ad4 SF |
1185 | |
1186 | /* BB FIXME BB */ | |
50c2f753 SF |
1187 | /* pSMB->CreateOptions = cpu_to_le32(create_options & |
1188 | CREATE_OPTIONS_MASK); */ | |
a9d02ad4 | 1189 | /* BB FIXME END BB */ |
3e87d803 SF |
1190 | |
1191 | pSMB->Sattr = cpu_to_le16(ATTR_HIDDEN | ATTR_SYSTEM | ATTR_DIRECTORY); | |
70ca734a | 1192 | pSMB->OpenFunction = cpu_to_le16(convert_disposition(openDisposition)); |
a9d02ad4 SF |
1193 | count += name_len; |
1194 | pSMB->hdr.smb_buf_length += count; | |
1195 | ||
1196 | pSMB->ByteCount = cpu_to_le16(count); | |
1197 | /* long_op set to 1 to allow for oplock break timeouts */ | |
1198 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
133672ef | 1199 | (struct smb_hdr *)pSMBr, &bytes_returned, CIFS_LONG_OP); |
a9d02ad4 SF |
1200 | cifs_stats_inc(&tcon->num_opens); |
1201 | if (rc) { | |
b6b38f70 | 1202 | cFYI(1, "Error in Open = %d", rc); |
a9d02ad4 SF |
1203 | } else { |
1204 | /* BB verify if wct == 15 */ | |
1205 | ||
582d21e5 | 1206 | /* *pOplock = pSMBr->OplockLevel; */ /* BB take from action field*/ |
a9d02ad4 SF |
1207 | |
1208 | *netfid = pSMBr->Fid; /* cifs fid stays in le */ | |
1209 | /* Let caller know file was created so we can set the mode. */ | |
1210 | /* Do we care about the CreateAction in any other cases? */ | |
1211 | /* BB FIXME BB */ | |
790fe579 | 1212 | /* if (cpu_to_le32(FILE_CREATE) == pSMBr->CreateAction) |
a9d02ad4 SF |
1213 | *pOplock |= CIFS_CREATE_ACTION; */ |
1214 | /* BB FIXME END */ | |
1215 | ||
790fe579 | 1216 | if (pfile_info) { |
a9d02ad4 SF |
1217 | pfile_info->CreationTime = 0; /* BB convert CreateTime*/ |
1218 | pfile_info->LastAccessTime = 0; /* BB fixme */ | |
1219 | pfile_info->LastWriteTime = 0; /* BB fixme */ | |
1220 | pfile_info->ChangeTime = 0; /* BB fixme */ | |
70ca734a | 1221 | pfile_info->Attributes = |
50c2f753 | 1222 | cpu_to_le32(le16_to_cpu(pSMBr->FileAttributes)); |
a9d02ad4 | 1223 | /* the file_info buf is endian converted by caller */ |
70ca734a SF |
1224 | pfile_info->AllocationSize = |
1225 | cpu_to_le64(le32_to_cpu(pSMBr->EndOfFile)); | |
1226 | pfile_info->EndOfFile = pfile_info->AllocationSize; | |
a9d02ad4 | 1227 | pfile_info->NumberOfLinks = cpu_to_le32(1); |
9a8165fc | 1228 | pfile_info->DeletePending = 0; |
a9d02ad4 SF |
1229 | } |
1230 | } | |
1231 | ||
1232 | cifs_buf_release(pSMB); | |
1233 | if (rc == -EAGAIN) | |
1234 | goto OldOpenRetry; | |
1235 | return rc; | |
1236 | } | |
1237 | ||
1da177e4 LT |
1238 | int |
1239 | CIFSSMBOpen(const int xid, struct cifsTconInfo *tcon, | |
1240 | const char *fileName, const int openDisposition, | |
ad7a2926 SF |
1241 | const int access_flags, const int create_options, __u16 *netfid, |
1242 | int *pOplock, FILE_ALL_INFO *pfile_info, | |
737b758c | 1243 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
1244 | { |
1245 | int rc = -EACCES; | |
1246 | OPEN_REQ *pSMB = NULL; | |
1247 | OPEN_RSP *pSMBr = NULL; | |
1248 | int bytes_returned; | |
1249 | int name_len; | |
1250 | __u16 count; | |
1251 | ||
1252 | openRetry: | |
1253 | rc = smb_init(SMB_COM_NT_CREATE_ANDX, 24, tcon, (void **) &pSMB, | |
1254 | (void **) &pSMBr); | |
1255 | if (rc) | |
1256 | return rc; | |
1257 | ||
1258 | pSMB->AndXCommand = 0xFF; /* none */ | |
1259 | ||
1260 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1261 | count = 1; /* account for one byte pad to word boundary */ | |
1262 | name_len = | |
b1a45695 | 1263 | cifsConvertToUCS((__le16 *) (pSMB->fileName + 1), |
737b758c | 1264 | fileName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1265 | name_len++; /* trailing null */ |
1266 | name_len *= 2; | |
1267 | pSMB->NameLength = cpu_to_le16(name_len); | |
09d1db5c | 1268 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
1269 | count = 0; /* no pad */ |
1270 | name_len = strnlen(fileName, PATH_MAX); | |
1271 | name_len++; /* trailing null */ | |
1272 | pSMB->NameLength = cpu_to_le16(name_len); | |
1273 | strncpy(pSMB->fileName, fileName, name_len); | |
1274 | } | |
1275 | if (*pOplock & REQ_OPLOCK) | |
1276 | pSMB->OpenFlags = cpu_to_le32(REQ_OPLOCK); | |
26f57364 | 1277 | else if (*pOplock & REQ_BATCHOPLOCK) |
1da177e4 | 1278 | pSMB->OpenFlags = cpu_to_le32(REQ_BATCHOPLOCK); |
1da177e4 LT |
1279 | pSMB->DesiredAccess = cpu_to_le32(access_flags); |
1280 | pSMB->AllocationSize = 0; | |
eda3c029 SF |
1281 | /* set file as system file if special file such |
1282 | as fifo and server expecting SFU style and | |
1283 | no Unix extensions */ | |
790fe579 | 1284 | if (create_options & CREATE_OPTION_SPECIAL) |
eda3c029 SF |
1285 | pSMB->FileAttributes = cpu_to_le32(ATTR_SYSTEM); |
1286 | else | |
1287 | pSMB->FileAttributes = cpu_to_le32(ATTR_NORMAL); | |
67750fb9 | 1288 | |
1da177e4 LT |
1289 | /* XP does not handle ATTR_POSIX_SEMANTICS */ |
1290 | /* but it helps speed up case sensitive checks for other | |
1291 | servers such as Samba */ | |
1292 | if (tcon->ses->capabilities & CAP_UNIX) | |
1293 | pSMB->FileAttributes |= cpu_to_le32(ATTR_POSIX_SEMANTICS); | |
1294 | ||
67750fb9 JL |
1295 | if (create_options & CREATE_OPTION_READONLY) |
1296 | pSMB->FileAttributes |= cpu_to_le32(ATTR_READONLY); | |
1297 | ||
1da177e4 LT |
1298 | pSMB->ShareAccess = cpu_to_le32(FILE_SHARE_ALL); |
1299 | pSMB->CreateDisposition = cpu_to_le32(openDisposition); | |
eda3c029 | 1300 | pSMB->CreateOptions = cpu_to_le32(create_options & CREATE_OPTIONS_MASK); |
09d1db5c SF |
1301 | /* BB Expirement with various impersonation levels and verify */ |
1302 | pSMB->ImpersonationLevel = cpu_to_le32(SECURITY_IMPERSONATION); | |
1da177e4 LT |
1303 | pSMB->SecurityFlags = |
1304 | SECURITY_CONTEXT_TRACKING | SECURITY_EFFECTIVE_ONLY; | |
1305 | ||
1306 | count += name_len; | |
1307 | pSMB->hdr.smb_buf_length += count; | |
1308 | ||
1309 | pSMB->ByteCount = cpu_to_le16(count); | |
1310 | /* long_op set to 1 to allow for oplock break timeouts */ | |
1311 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
133672ef | 1312 | (struct smb_hdr *)pSMBr, &bytes_returned, CIFS_LONG_OP); |
a4544347 | 1313 | cifs_stats_inc(&tcon->num_opens); |
1da177e4 | 1314 | if (rc) { |
b6b38f70 | 1315 | cFYI(1, "Error in Open = %d", rc); |
1da177e4 | 1316 | } else { |
09d1db5c | 1317 | *pOplock = pSMBr->OplockLevel; /* 1 byte no need to le_to_cpu */ |
1da177e4 LT |
1318 | *netfid = pSMBr->Fid; /* cifs fid stays in le */ |
1319 | /* Let caller know file was created so we can set the mode. */ | |
1320 | /* Do we care about the CreateAction in any other cases? */ | |
790fe579 | 1321 | if (cpu_to_le32(FILE_CREATE) == pSMBr->CreateAction) |
50c2f753 | 1322 | *pOplock |= CIFS_CREATE_ACTION; |
790fe579 | 1323 | if (pfile_info) { |
61e74801 SF |
1324 | memcpy((char *)pfile_info, (char *)&pSMBr->CreationTime, |
1325 | 36 /* CreationTime to Attributes */); | |
1326 | /* the file_info buf is endian converted by caller */ | |
1327 | pfile_info->AllocationSize = pSMBr->AllocationSize; | |
1328 | pfile_info->EndOfFile = pSMBr->EndOfFile; | |
1329 | pfile_info->NumberOfLinks = cpu_to_le32(1); | |
1330 | pfile_info->DeletePending = 0; | |
1da177e4 | 1331 | } |
1da177e4 | 1332 | } |
a5a2b489 | 1333 | |
1da177e4 LT |
1334 | cifs_buf_release(pSMB); |
1335 | if (rc == -EAGAIN) | |
1336 | goto openRetry; | |
1337 | return rc; | |
1338 | } | |
1339 | ||
1da177e4 | 1340 | int |
50c2f753 SF |
1341 | CIFSSMBRead(const int xid, struct cifsTconInfo *tcon, const int netfid, |
1342 | const unsigned int count, const __u64 lseek, unsigned int *nbytes, | |
1343 | char **buf, int *pbuf_type) | |
1da177e4 LT |
1344 | { |
1345 | int rc = -EACCES; | |
1346 | READ_REQ *pSMB = NULL; | |
1347 | READ_RSP *pSMBr = NULL; | |
1348 | char *pReadData = NULL; | |
bfa0d75a | 1349 | int wct; |
ec637e3f SF |
1350 | int resp_buf_type = 0; |
1351 | struct kvec iov[1]; | |
1da177e4 | 1352 | |
b6b38f70 | 1353 | cFYI(1, "Reading %d bytes on fid %d", count, netfid); |
790fe579 | 1354 | if (tcon->ses->capabilities & CAP_LARGE_FILES) |
bfa0d75a | 1355 | wct = 12; |
4c3130ef | 1356 | else { |
bfa0d75a | 1357 | wct = 10; /* old style read */ |
4c3130ef SF |
1358 | if ((lseek >> 32) > 0) { |
1359 | /* can not handle this big offset for old */ | |
1360 | return -EIO; | |
1361 | } | |
1362 | } | |
1da177e4 LT |
1363 | |
1364 | *nbytes = 0; | |
ec637e3f | 1365 | rc = small_smb_init(SMB_COM_READ_ANDX, wct, tcon, (void **) &pSMB); |
1da177e4 LT |
1366 | if (rc) |
1367 | return rc; | |
1368 | ||
1369 | /* tcon and ses pointer are checked in smb_init */ | |
1370 | if (tcon->ses->server == NULL) | |
1371 | return -ECONNABORTED; | |
1372 | ||
ec637e3f | 1373 | pSMB->AndXCommand = 0xFF; /* none */ |
1da177e4 LT |
1374 | pSMB->Fid = netfid; |
1375 | pSMB->OffsetLow = cpu_to_le32(lseek & 0xFFFFFFFF); | |
790fe579 | 1376 | if (wct == 12) |
bfa0d75a | 1377 | pSMB->OffsetHigh = cpu_to_le32(lseek >> 32); |
bfa0d75a | 1378 | |
1da177e4 LT |
1379 | pSMB->Remaining = 0; |
1380 | pSMB->MaxCount = cpu_to_le16(count & 0xFFFF); | |
1381 | pSMB->MaxCountHigh = cpu_to_le32(count >> 16); | |
790fe579 | 1382 | if (wct == 12) |
bfa0d75a SF |
1383 | pSMB->ByteCount = 0; /* no need to do le conversion since 0 */ |
1384 | else { | |
1385 | /* old style read */ | |
50c2f753 | 1386 | struct smb_com_readx_req *pSMBW = |
bfa0d75a | 1387 | (struct smb_com_readx_req *)pSMB; |
ec637e3f | 1388 | pSMBW->ByteCount = 0; |
bfa0d75a | 1389 | } |
ec637e3f SF |
1390 | |
1391 | iov[0].iov_base = (char *)pSMB; | |
1392 | iov[0].iov_len = pSMB->hdr.smb_buf_length + 4; | |
a761ac57 | 1393 | rc = SendReceive2(xid, tcon->ses, iov, 1 /* num iovecs */, |
133672ef | 1394 | &resp_buf_type, CIFS_STD_OP | CIFS_LOG_ERROR); |
a4544347 | 1395 | cifs_stats_inc(&tcon->num_reads); |
ec637e3f | 1396 | pSMBr = (READ_RSP *)iov[0].iov_base; |
1da177e4 | 1397 | if (rc) { |
b6b38f70 | 1398 | cERROR(1, "Send error in read = %d", rc); |
1da177e4 LT |
1399 | } else { |
1400 | int data_length = le16_to_cpu(pSMBr->DataLengthHigh); | |
1401 | data_length = data_length << 16; | |
1402 | data_length += le16_to_cpu(pSMBr->DataLength); | |
1403 | *nbytes = data_length; | |
1404 | ||
1405 | /*check that DataLength would not go beyond end of SMB */ | |
ec637e3f | 1406 | if ((data_length > CIFSMaxBufSize) |
1da177e4 | 1407 | || (data_length > count)) { |
b6b38f70 JP |
1408 | cFYI(1, "bad length %d for count %d", |
1409 | data_length, count); | |
1da177e4 LT |
1410 | rc = -EIO; |
1411 | *nbytes = 0; | |
1412 | } else { | |
ec637e3f | 1413 | pReadData = (char *) (&pSMBr->hdr.Protocol) + |
26f57364 SF |
1414 | le16_to_cpu(pSMBr->DataOffset); |
1415 | /* if (rc = copy_to_user(buf, pReadData, data_length)) { | |
b6b38f70 | 1416 | cERROR(1, "Faulting on read rc = %d",rc); |
50c2f753 | 1417 | rc = -EFAULT; |
26f57364 | 1418 | }*/ /* can not use copy_to_user when using page cache*/ |
790fe579 | 1419 | if (*buf) |
50c2f753 | 1420 | memcpy(*buf, pReadData, data_length); |
1da177e4 LT |
1421 | } |
1422 | } | |
1da177e4 | 1423 | |
4b8f930f | 1424 | /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */ |
790fe579 SF |
1425 | if (*buf) { |
1426 | if (resp_buf_type == CIFS_SMALL_BUFFER) | |
ec637e3f | 1427 | cifs_small_buf_release(iov[0].iov_base); |
790fe579 | 1428 | else if (resp_buf_type == CIFS_LARGE_BUFFER) |
ec637e3f | 1429 | cifs_buf_release(iov[0].iov_base); |
790fe579 | 1430 | } else if (resp_buf_type != CIFS_NO_BUFFER) { |
50c2f753 SF |
1431 | /* return buffer to caller to free */ |
1432 | *buf = iov[0].iov_base; | |
790fe579 | 1433 | if (resp_buf_type == CIFS_SMALL_BUFFER) |
ec637e3f | 1434 | *pbuf_type = CIFS_SMALL_BUFFER; |
790fe579 | 1435 | else if (resp_buf_type == CIFS_LARGE_BUFFER) |
ec637e3f | 1436 | *pbuf_type = CIFS_LARGE_BUFFER; |
6cec2aed | 1437 | } /* else no valid buffer on return - leave as null */ |
ec637e3f SF |
1438 | |
1439 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
1da177e4 LT |
1440 | since file handle passed in no longer valid */ |
1441 | return rc; | |
1442 | } | |
1443 | ||
ec637e3f | 1444 | |
1da177e4 LT |
1445 | int |
1446 | CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon, | |
1447 | const int netfid, const unsigned int count, | |
1448 | const __u64 offset, unsigned int *nbytes, const char *buf, | |
50c2f753 | 1449 | const char __user *ubuf, const int long_op) |
1da177e4 LT |
1450 | { |
1451 | int rc = -EACCES; | |
1452 | WRITE_REQ *pSMB = NULL; | |
1453 | WRITE_RSP *pSMBr = NULL; | |
1c955187 | 1454 | int bytes_returned, wct; |
1da177e4 LT |
1455 | __u32 bytes_sent; |
1456 | __u16 byte_count; | |
1457 | ||
a24e2d7d SF |
1458 | *nbytes = 0; |
1459 | ||
b6b38f70 | 1460 | /* cFYI(1, "write at %lld %d bytes", offset, count);*/ |
790fe579 | 1461 | if (tcon->ses == NULL) |
1c955187 SF |
1462 | return -ECONNABORTED; |
1463 | ||
790fe579 | 1464 | if (tcon->ses->capabilities & CAP_LARGE_FILES) |
1c955187 | 1465 | wct = 14; |
4c3130ef | 1466 | else { |
1c955187 | 1467 | wct = 12; |
4c3130ef SF |
1468 | if ((offset >> 32) > 0) { |
1469 | /* can not handle big offset for old srv */ | |
1470 | return -EIO; | |
1471 | } | |
1472 | } | |
1c955187 SF |
1473 | |
1474 | rc = smb_init(SMB_COM_WRITE_ANDX, wct, tcon, (void **) &pSMB, | |
1da177e4 LT |
1475 | (void **) &pSMBr); |
1476 | if (rc) | |
1477 | return rc; | |
1478 | /* tcon and ses pointer are checked in smb_init */ | |
1479 | if (tcon->ses->server == NULL) | |
1480 | return -ECONNABORTED; | |
1481 | ||
1482 | pSMB->AndXCommand = 0xFF; /* none */ | |
1483 | pSMB->Fid = netfid; | |
1484 | pSMB->OffsetLow = cpu_to_le32(offset & 0xFFFFFFFF); | |
790fe579 | 1485 | if (wct == 14) |
1c955187 | 1486 | pSMB->OffsetHigh = cpu_to_le32(offset >> 32); |
50c2f753 | 1487 | |
1da177e4 LT |
1488 | pSMB->Reserved = 0xFFFFFFFF; |
1489 | pSMB->WriteMode = 0; | |
1490 | pSMB->Remaining = 0; | |
1491 | ||
50c2f753 | 1492 | /* Can increase buffer size if buffer is big enough in some cases ie we |
1da177e4 LT |
1493 | can send more if LARGE_WRITE_X capability returned by the server and if |
1494 | our buffer is big enough or if we convert to iovecs on socket writes | |
1495 | and eliminate the copy to the CIFS buffer */ | |
790fe579 | 1496 | if (tcon->ses->capabilities & CAP_LARGE_WRITE_X) { |
1da177e4 LT |
1497 | bytes_sent = min_t(const unsigned int, CIFSMaxBufSize, count); |
1498 | } else { | |
1499 | bytes_sent = (tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) | |
1500 | & ~0xFF; | |
1501 | } | |
1502 | ||
1503 | if (bytes_sent > count) | |
1504 | bytes_sent = count; | |
1505 | pSMB->DataOffset = | |
50c2f753 | 1506 | cpu_to_le16(offsetof(struct smb_com_write_req, Data) - 4); |
790fe579 | 1507 | if (buf) |
61e74801 | 1508 | memcpy(pSMB->Data, buf, bytes_sent); |
790fe579 SF |
1509 | else if (ubuf) { |
1510 | if (copy_from_user(pSMB->Data, ubuf, bytes_sent)) { | |
1da177e4 LT |
1511 | cifs_buf_release(pSMB); |
1512 | return -EFAULT; | |
1513 | } | |
e30dcf3a | 1514 | } else if (count != 0) { |
1da177e4 LT |
1515 | /* No buffer */ |
1516 | cifs_buf_release(pSMB); | |
1517 | return -EINVAL; | |
e30dcf3a | 1518 | } /* else setting file size with write of zero bytes */ |
790fe579 | 1519 | if (wct == 14) |
e30dcf3a | 1520 | byte_count = bytes_sent + 1; /* pad */ |
ad7a2926 | 1521 | else /* wct == 12 */ |
e30dcf3a | 1522 | byte_count = bytes_sent + 5; /* bigger pad, smaller smb hdr */ |
ad7a2926 | 1523 | |
1da177e4 LT |
1524 | pSMB->DataLengthLow = cpu_to_le16(bytes_sent & 0xFFFF); |
1525 | pSMB->DataLengthHigh = cpu_to_le16(bytes_sent >> 16); | |
e30dcf3a | 1526 | pSMB->hdr.smb_buf_length += byte_count; |
1c955187 | 1527 | |
790fe579 | 1528 | if (wct == 14) |
1c955187 | 1529 | pSMB->ByteCount = cpu_to_le16(byte_count); |
50c2f753 SF |
1530 | else { /* old style write has byte count 4 bytes earlier |
1531 | so 4 bytes pad */ | |
1532 | struct smb_com_writex_req *pSMBW = | |
1c955187 SF |
1533 | (struct smb_com_writex_req *)pSMB; |
1534 | pSMBW->ByteCount = cpu_to_le16(byte_count); | |
1535 | } | |
1da177e4 LT |
1536 | |
1537 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1538 | (struct smb_hdr *) pSMBr, &bytes_returned, long_op); | |
a4544347 | 1539 | cifs_stats_inc(&tcon->num_writes); |
1da177e4 | 1540 | if (rc) { |
f19159dc | 1541 | cFYI(1, "Send error in write = %d", rc); |
1da177e4 LT |
1542 | } else { |
1543 | *nbytes = le16_to_cpu(pSMBr->CountHigh); | |
1544 | *nbytes = (*nbytes) << 16; | |
1545 | *nbytes += le16_to_cpu(pSMBr->Count); | |
6513a81e SJ |
1546 | |
1547 | /* | |
1548 | * Mask off high 16 bits when bytes written as returned by the | |
1549 | * server is greater than bytes requested by the client. Some | |
1550 | * OS/2 servers are known to set incorrect CountHigh values. | |
1551 | */ | |
1552 | if (*nbytes > count) | |
1553 | *nbytes &= 0xFFFF; | |
1da177e4 LT |
1554 | } |
1555 | ||
1556 | cifs_buf_release(pSMB); | |
1557 | ||
50c2f753 | 1558 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
1da177e4 LT |
1559 | since file handle passed in no longer valid */ |
1560 | ||
1561 | return rc; | |
1562 | } | |
1563 | ||
d6e04ae6 SF |
1564 | int |
1565 | CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon, | |
1da177e4 | 1566 | const int netfid, const unsigned int count, |
3e84469d SF |
1567 | const __u64 offset, unsigned int *nbytes, struct kvec *iov, |
1568 | int n_vec, const int long_op) | |
1da177e4 LT |
1569 | { |
1570 | int rc = -EACCES; | |
1571 | WRITE_REQ *pSMB = NULL; | |
ec637e3f | 1572 | int wct; |
d6e04ae6 | 1573 | int smb_hdr_len; |
ec637e3f | 1574 | int resp_buf_type = 0; |
1da177e4 | 1575 | |
fbec9ab9 JL |
1576 | *nbytes = 0; |
1577 | ||
b6b38f70 | 1578 | cFYI(1, "write2 at %lld %d bytes", (long long)offset, count); |
ff7feac9 | 1579 | |
4c3130ef | 1580 | if (tcon->ses->capabilities & CAP_LARGE_FILES) { |
8cc64c6e | 1581 | wct = 14; |
4c3130ef | 1582 | } else { |
8cc64c6e | 1583 | wct = 12; |
4c3130ef SF |
1584 | if ((offset >> 32) > 0) { |
1585 | /* can not handle big offset for old srv */ | |
1586 | return -EIO; | |
1587 | } | |
1588 | } | |
8cc64c6e | 1589 | rc = small_smb_init(SMB_COM_WRITE_ANDX, wct, tcon, (void **) &pSMB); |
1da177e4 LT |
1590 | if (rc) |
1591 | return rc; | |
1da177e4 LT |
1592 | /* tcon and ses pointer are checked in smb_init */ |
1593 | if (tcon->ses->server == NULL) | |
1594 | return -ECONNABORTED; | |
1595 | ||
d6e04ae6 | 1596 | pSMB->AndXCommand = 0xFF; /* none */ |
1da177e4 LT |
1597 | pSMB->Fid = netfid; |
1598 | pSMB->OffsetLow = cpu_to_le32(offset & 0xFFFFFFFF); | |
790fe579 | 1599 | if (wct == 14) |
8cc64c6e | 1600 | pSMB->OffsetHigh = cpu_to_le32(offset >> 32); |
1da177e4 LT |
1601 | pSMB->Reserved = 0xFFFFFFFF; |
1602 | pSMB->WriteMode = 0; | |
1603 | pSMB->Remaining = 0; | |
d6e04ae6 | 1604 | |
1da177e4 | 1605 | pSMB->DataOffset = |
50c2f753 | 1606 | cpu_to_le16(offsetof(struct smb_com_write_req, Data) - 4); |
1da177e4 | 1607 | |
3e84469d SF |
1608 | pSMB->DataLengthLow = cpu_to_le16(count & 0xFFFF); |
1609 | pSMB->DataLengthHigh = cpu_to_le16(count >> 16); | |
d6e04ae6 | 1610 | smb_hdr_len = pSMB->hdr.smb_buf_length + 1; /* hdr + 1 byte pad */ |
790fe579 | 1611 | if (wct == 14) |
8cc64c6e SF |
1612 | pSMB->hdr.smb_buf_length += count+1; |
1613 | else /* wct == 12 */ | |
790fe579 SF |
1614 | pSMB->hdr.smb_buf_length += count+5; /* smb data starts later */ |
1615 | if (wct == 14) | |
8cc64c6e SF |
1616 | pSMB->ByteCount = cpu_to_le16(count + 1); |
1617 | else /* wct == 12 */ /* bigger pad, smaller smb hdr, keep offset ok */ { | |
50c2f753 | 1618 | struct smb_com_writex_req *pSMBW = |
8cc64c6e SF |
1619 | (struct smb_com_writex_req *)pSMB; |
1620 | pSMBW->ByteCount = cpu_to_le16(count + 5); | |
1621 | } | |
3e84469d | 1622 | iov[0].iov_base = pSMB; |
790fe579 | 1623 | if (wct == 14) |
ec637e3f SF |
1624 | iov[0].iov_len = smb_hdr_len + 4; |
1625 | else /* wct == 12 pad bigger by four bytes */ | |
1626 | iov[0].iov_len = smb_hdr_len + 8; | |
50c2f753 | 1627 | |
1da177e4 | 1628 | |
ec637e3f | 1629 | rc = SendReceive2(xid, tcon->ses, iov, n_vec + 1, &resp_buf_type, |
133672ef | 1630 | long_op); |
a4544347 | 1631 | cifs_stats_inc(&tcon->num_writes); |
1da177e4 | 1632 | if (rc) { |
b6b38f70 | 1633 | cFYI(1, "Send error Write2 = %d", rc); |
790fe579 | 1634 | } else if (resp_buf_type == 0) { |
ec637e3f SF |
1635 | /* presumably this can not happen, but best to be safe */ |
1636 | rc = -EIO; | |
d6e04ae6 | 1637 | } else { |
ad7a2926 | 1638 | WRITE_RSP *pSMBr = (WRITE_RSP *)iov[0].iov_base; |
d6e04ae6 SF |
1639 | *nbytes = le16_to_cpu(pSMBr->CountHigh); |
1640 | *nbytes = (*nbytes) << 16; | |
1641 | *nbytes += le16_to_cpu(pSMBr->Count); | |
6513a81e SJ |
1642 | |
1643 | /* | |
1644 | * Mask off high 16 bits when bytes written as returned by the | |
1645 | * server is greater than bytes requested by the client. OS/2 | |
1646 | * servers are known to set incorrect CountHigh values. | |
1647 | */ | |
1648 | if (*nbytes > count) | |
1649 | *nbytes &= 0xFFFF; | |
50c2f753 | 1650 | } |
1da177e4 | 1651 | |
4b8f930f | 1652 | /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */ |
790fe579 | 1653 | if (resp_buf_type == CIFS_SMALL_BUFFER) |
ec637e3f | 1654 | cifs_small_buf_release(iov[0].iov_base); |
790fe579 | 1655 | else if (resp_buf_type == CIFS_LARGE_BUFFER) |
ec637e3f | 1656 | cifs_buf_release(iov[0].iov_base); |
1da177e4 | 1657 | |
50c2f753 | 1658 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
1da177e4 LT |
1659 | since file handle passed in no longer valid */ |
1660 | ||
1661 | return rc; | |
1662 | } | |
d6e04ae6 SF |
1663 | |
1664 | ||
1da177e4 LT |
1665 | int |
1666 | CIFSSMBLock(const int xid, struct cifsTconInfo *tcon, | |
1667 | const __u16 smb_file_id, const __u64 len, | |
1668 | const __u64 offset, const __u32 numUnlock, | |
4b18f2a9 | 1669 | const __u32 numLock, const __u8 lockType, const bool waitFlag) |
1da177e4 LT |
1670 | { |
1671 | int rc = 0; | |
1672 | LOCK_REQ *pSMB = NULL; | |
aaa9bbe0 | 1673 | /* LOCK_RSP *pSMBr = NULL; */ /* No response data other than rc to parse */ |
1da177e4 LT |
1674 | int bytes_returned; |
1675 | int timeout = 0; | |
1676 | __u16 count; | |
1677 | ||
b6b38f70 | 1678 | cFYI(1, "CIFSSMBLock timeout %d numLock %d", (int)waitFlag, numLock); |
46810cbf SF |
1679 | rc = small_smb_init(SMB_COM_LOCKING_ANDX, 8, tcon, (void **) &pSMB); |
1680 | ||
1da177e4 LT |
1681 | if (rc) |
1682 | return rc; | |
1683 | ||
790fe579 | 1684 | if (lockType == LOCKING_ANDX_OPLOCK_RELEASE) { |
133672ef | 1685 | timeout = CIFS_ASYNC_OP; /* no response expected */ |
1da177e4 | 1686 | pSMB->Timeout = 0; |
4b18f2a9 | 1687 | } else if (waitFlag) { |
133672ef | 1688 | timeout = CIFS_BLOCKING_OP; /* blocking operation, no timeout */ |
1da177e4 LT |
1689 | pSMB->Timeout = cpu_to_le32(-1);/* blocking - do not time out */ |
1690 | } else { | |
1691 | pSMB->Timeout = 0; | |
1692 | } | |
1693 | ||
1694 | pSMB->NumberOfLocks = cpu_to_le16(numLock); | |
1695 | pSMB->NumberOfUnlocks = cpu_to_le16(numUnlock); | |
1696 | pSMB->LockType = lockType; | |
1697 | pSMB->AndXCommand = 0xFF; /* none */ | |
1698 | pSMB->Fid = smb_file_id; /* netfid stays le */ | |
1699 | ||
790fe579 | 1700 | if ((numLock != 0) || (numUnlock != 0)) { |
1da177e4 LT |
1701 | pSMB->Locks[0].Pid = cpu_to_le16(current->tgid); |
1702 | /* BB where to store pid high? */ | |
1703 | pSMB->Locks[0].LengthLow = cpu_to_le32((u32)len); | |
1704 | pSMB->Locks[0].LengthHigh = cpu_to_le32((u32)(len>>32)); | |
1705 | pSMB->Locks[0].OffsetLow = cpu_to_le32((u32)offset); | |
1706 | pSMB->Locks[0].OffsetHigh = cpu_to_le32((u32)(offset>>32)); | |
1707 | count = sizeof(LOCKING_ANDX_RANGE); | |
1708 | } else { | |
1709 | /* oplock break */ | |
1710 | count = 0; | |
1711 | } | |
1712 | pSMB->hdr.smb_buf_length += count; | |
1713 | pSMB->ByteCount = cpu_to_le16(count); | |
1714 | ||
7ee1af76 JA |
1715 | if (waitFlag) { |
1716 | rc = SendReceiveBlockingLock(xid, tcon, (struct smb_hdr *) pSMB, | |
aaa9bbe0 | 1717 | (struct smb_hdr *) pSMB, &bytes_returned); |
133672ef | 1718 | cifs_small_buf_release(pSMB); |
7ee1af76 | 1719 | } else { |
133672ef SF |
1720 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *)pSMB, |
1721 | timeout); | |
1722 | /* SMB buffer freed by function above */ | |
7ee1af76 | 1723 | } |
a4544347 | 1724 | cifs_stats_inc(&tcon->num_locks); |
ad7a2926 | 1725 | if (rc) |
b6b38f70 | 1726 | cFYI(1, "Send error in Lock = %d", rc); |
1da177e4 | 1727 | |
50c2f753 | 1728 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
1da177e4 LT |
1729 | since file handle passed in no longer valid */ |
1730 | return rc; | |
1731 | } | |
1732 | ||
08547b03 SF |
1733 | int |
1734 | CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon, | |
1735 | const __u16 smb_file_id, const int get_flag, const __u64 len, | |
50c2f753 | 1736 | struct file_lock *pLockData, const __u16 lock_type, |
4b18f2a9 | 1737 | const bool waitFlag) |
08547b03 SF |
1738 | { |
1739 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
1740 | struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; | |
08547b03 SF |
1741 | struct cifs_posix_lock *parm_data; |
1742 | int rc = 0; | |
3a5ff61c | 1743 | int timeout = 0; |
08547b03 | 1744 | int bytes_returned = 0; |
133672ef | 1745 | int resp_buf_type = 0; |
08547b03 | 1746 | __u16 params, param_offset, offset, byte_count, count; |
133672ef | 1747 | struct kvec iov[1]; |
08547b03 | 1748 | |
b6b38f70 | 1749 | cFYI(1, "Posix Lock"); |
fc94cdb9 | 1750 | |
790fe579 | 1751 | if (pLockData == NULL) |
ed5f0370 | 1752 | return -EINVAL; |
fc94cdb9 | 1753 | |
08547b03 SF |
1754 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
1755 | ||
1756 | if (rc) | |
1757 | return rc; | |
1758 | ||
1759 | pSMBr = (struct smb_com_transaction2_sfi_rsp *)pSMB; | |
1760 | ||
50c2f753 | 1761 | params = 6; |
08547b03 SF |
1762 | pSMB->MaxSetupCount = 0; |
1763 | pSMB->Reserved = 0; | |
1764 | pSMB->Flags = 0; | |
08547b03 SF |
1765 | pSMB->Reserved2 = 0; |
1766 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
1767 | offset = param_offset + params; | |
1768 | ||
08547b03 SF |
1769 | count = sizeof(struct cifs_posix_lock); |
1770 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
ad7a2926 | 1771 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB from sess */ |
08547b03 SF |
1772 | pSMB->SetupCount = 1; |
1773 | pSMB->Reserved3 = 0; | |
790fe579 | 1774 | if (get_flag) |
08547b03 SF |
1775 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FILE_INFORMATION); |
1776 | else | |
1777 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
1778 | byte_count = 3 /* pad */ + params + count; | |
1779 | pSMB->DataCount = cpu_to_le16(count); | |
1780 | pSMB->ParameterCount = cpu_to_le16(params); | |
1781 | pSMB->TotalDataCount = pSMB->DataCount; | |
1782 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
1783 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
50c2f753 | 1784 | parm_data = (struct cifs_posix_lock *) |
08547b03 SF |
1785 | (((char *) &pSMB->hdr.Protocol) + offset); |
1786 | ||
1787 | parm_data->lock_type = cpu_to_le16(lock_type); | |
790fe579 | 1788 | if (waitFlag) { |
133672ef | 1789 | timeout = CIFS_BLOCKING_OP; /* blocking operation, no timeout */ |
cec6815a | 1790 | parm_data->lock_flags = cpu_to_le16(1); |
3a5ff61c SF |
1791 | pSMB->Timeout = cpu_to_le32(-1); |
1792 | } else | |
1793 | pSMB->Timeout = 0; | |
1794 | ||
08547b03 | 1795 | parm_data->pid = cpu_to_le32(current->tgid); |
fc94cdb9 | 1796 | parm_data->start = cpu_to_le64(pLockData->fl_start); |
cec6815a | 1797 | parm_data->length = cpu_to_le64(len); /* normalize negative numbers */ |
08547b03 SF |
1798 | |
1799 | pSMB->DataOffset = cpu_to_le16(offset); | |
f26282c9 | 1800 | pSMB->Fid = smb_file_id; |
08547b03 SF |
1801 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_POSIX_LOCK); |
1802 | pSMB->Reserved4 = 0; | |
1803 | pSMB->hdr.smb_buf_length += byte_count; | |
1804 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
7ee1af76 JA |
1805 | if (waitFlag) { |
1806 | rc = SendReceiveBlockingLock(xid, tcon, (struct smb_hdr *) pSMB, | |
1807 | (struct smb_hdr *) pSMBr, &bytes_returned); | |
1808 | } else { | |
133672ef SF |
1809 | iov[0].iov_base = (char *)pSMB; |
1810 | iov[0].iov_len = pSMB->hdr.smb_buf_length + 4; | |
1811 | rc = SendReceive2(xid, tcon->ses, iov, 1 /* num iovecs */, | |
1812 | &resp_buf_type, timeout); | |
1813 | pSMB = NULL; /* request buf already freed by SendReceive2. Do | |
1814 | not try to free it twice below on exit */ | |
1815 | pSMBr = (struct smb_com_transaction2_sfi_rsp *)iov[0].iov_base; | |
7ee1af76 JA |
1816 | } |
1817 | ||
08547b03 | 1818 | if (rc) { |
b6b38f70 | 1819 | cFYI(1, "Send error in Posix Lock = %d", rc); |
fc94cdb9 SF |
1820 | } else if (get_flag) { |
1821 | /* lock structure can be returned on get */ | |
1822 | __u16 data_offset; | |
1823 | __u16 data_count; | |
1824 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
1825 | ||
1826 | if (rc || (pSMBr->ByteCount < sizeof(struct cifs_posix_lock))) { | |
1827 | rc = -EIO; /* bad smb */ | |
1828 | goto plk_err_exit; | |
1829 | } | |
fc94cdb9 SF |
1830 | data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
1831 | data_count = le16_to_cpu(pSMBr->t2.DataCount); | |
790fe579 | 1832 | if (data_count < sizeof(struct cifs_posix_lock)) { |
fc94cdb9 SF |
1833 | rc = -EIO; |
1834 | goto plk_err_exit; | |
1835 | } | |
1836 | parm_data = (struct cifs_posix_lock *) | |
1837 | ((char *)&pSMBr->hdr.Protocol + data_offset); | |
f05337c6 | 1838 | if (parm_data->lock_type == __constant_cpu_to_le16(CIFS_UNLCK)) |
fc94cdb9 | 1839 | pLockData->fl_type = F_UNLCK; |
f05337c6 PS |
1840 | else { |
1841 | if (parm_data->lock_type == | |
1842 | __constant_cpu_to_le16(CIFS_RDLCK)) | |
1843 | pLockData->fl_type = F_RDLCK; | |
1844 | else if (parm_data->lock_type == | |
1845 | __constant_cpu_to_le16(CIFS_WRLCK)) | |
1846 | pLockData->fl_type = F_WRLCK; | |
1847 | ||
1848 | pLockData->fl_start = parm_data->start; | |
1849 | pLockData->fl_end = parm_data->start + | |
1850 | parm_data->length - 1; | |
1851 | pLockData->fl_pid = parm_data->pid; | |
1852 | } | |
08547b03 | 1853 | } |
50c2f753 | 1854 | |
fc94cdb9 | 1855 | plk_err_exit: |
08547b03 SF |
1856 | if (pSMB) |
1857 | cifs_small_buf_release(pSMB); | |
1858 | ||
133672ef SF |
1859 | if (resp_buf_type == CIFS_SMALL_BUFFER) |
1860 | cifs_small_buf_release(iov[0].iov_base); | |
1861 | else if (resp_buf_type == CIFS_LARGE_BUFFER) | |
1862 | cifs_buf_release(iov[0].iov_base); | |
1863 | ||
08547b03 SF |
1864 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
1865 | since file handle passed in no longer valid */ | |
1866 | ||
1867 | return rc; | |
1868 | } | |
1869 | ||
1870 | ||
1da177e4 LT |
1871 | int |
1872 | CIFSSMBClose(const int xid, struct cifsTconInfo *tcon, int smb_file_id) | |
1873 | { | |
1874 | int rc = 0; | |
1875 | CLOSE_REQ *pSMB = NULL; | |
b6b38f70 | 1876 | cFYI(1, "In CIFSSMBClose"); |
1da177e4 LT |
1877 | |
1878 | /* do not retry on dead session on close */ | |
1879 | rc = small_smb_init(SMB_COM_CLOSE, 3, tcon, (void **) &pSMB); | |
790fe579 | 1880 | if (rc == -EAGAIN) |
1da177e4 LT |
1881 | return 0; |
1882 | if (rc) | |
1883 | return rc; | |
1884 | ||
1da177e4 | 1885 | pSMB->FileID = (__u16) smb_file_id; |
b815f1e5 | 1886 | pSMB->LastWriteTime = 0xFFFFFFFF; |
1da177e4 | 1887 | pSMB->ByteCount = 0; |
133672ef | 1888 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); |
a4544347 | 1889 | cifs_stats_inc(&tcon->num_closes); |
1da177e4 | 1890 | if (rc) { |
790fe579 | 1891 | if (rc != -EINTR) { |
1da177e4 | 1892 | /* EINTR is expected when user ctl-c to kill app */ |
b6b38f70 | 1893 | cERROR(1, "Send error in Close = %d", rc); |
1da177e4 LT |
1894 | } |
1895 | } | |
1896 | ||
1da177e4 | 1897 | /* Since session is dead, file will be closed on server already */ |
790fe579 | 1898 | if (rc == -EAGAIN) |
1da177e4 LT |
1899 | rc = 0; |
1900 | ||
1901 | return rc; | |
1902 | } | |
1903 | ||
b298f223 SF |
1904 | int |
1905 | CIFSSMBFlush(const int xid, struct cifsTconInfo *tcon, int smb_file_id) | |
1906 | { | |
1907 | int rc = 0; | |
1908 | FLUSH_REQ *pSMB = NULL; | |
b6b38f70 | 1909 | cFYI(1, "In CIFSSMBFlush"); |
b298f223 SF |
1910 | |
1911 | rc = small_smb_init(SMB_COM_FLUSH, 1, tcon, (void **) &pSMB); | |
1912 | if (rc) | |
1913 | return rc; | |
1914 | ||
1915 | pSMB->FileID = (__u16) smb_file_id; | |
1916 | pSMB->ByteCount = 0; | |
1917 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); | |
1918 | cifs_stats_inc(&tcon->num_flushes); | |
1919 | if (rc) | |
b6b38f70 | 1920 | cERROR(1, "Send error in Flush = %d", rc); |
b298f223 SF |
1921 | |
1922 | return rc; | |
1923 | } | |
1924 | ||
1da177e4 LT |
1925 | int |
1926 | CIFSSMBRename(const int xid, struct cifsTconInfo *tcon, | |
1927 | const char *fromName, const char *toName, | |
737b758c | 1928 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
1929 | { |
1930 | int rc = 0; | |
1931 | RENAME_REQ *pSMB = NULL; | |
1932 | RENAME_RSP *pSMBr = NULL; | |
1933 | int bytes_returned; | |
1934 | int name_len, name_len2; | |
1935 | __u16 count; | |
1936 | ||
b6b38f70 | 1937 | cFYI(1, "In CIFSSMBRename"); |
1da177e4 LT |
1938 | renameRetry: |
1939 | rc = smb_init(SMB_COM_RENAME, 1, tcon, (void **) &pSMB, | |
1940 | (void **) &pSMBr); | |
1941 | if (rc) | |
1942 | return rc; | |
1943 | ||
1944 | pSMB->BufferFormat = 0x04; | |
1945 | pSMB->SearchAttributes = | |
1946 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | | |
1947 | ATTR_DIRECTORY); | |
1948 | ||
1949 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1950 | name_len = | |
50c2f753 | 1951 | cifsConvertToUCS((__le16 *) pSMB->OldFileName, fromName, |
737b758c | 1952 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1953 | name_len++; /* trailing null */ |
1954 | name_len *= 2; | |
1955 | pSMB->OldFileName[name_len] = 0x04; /* pad */ | |
1956 | /* protocol requires ASCII signature byte on Unicode string */ | |
1957 | pSMB->OldFileName[name_len + 1] = 0x00; | |
1958 | name_len2 = | |
582d21e5 | 1959 | cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2], |
737b758c | 1960 | toName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1961 | name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; |
1962 | name_len2 *= 2; /* convert to bytes */ | |
50c2f753 | 1963 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
1964 | name_len = strnlen(fromName, PATH_MAX); |
1965 | name_len++; /* trailing null */ | |
1966 | strncpy(pSMB->OldFileName, fromName, name_len); | |
1967 | name_len2 = strnlen(toName, PATH_MAX); | |
1968 | name_len2++; /* trailing null */ | |
1969 | pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */ | |
1970 | strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2); | |
1971 | name_len2++; /* trailing null */ | |
1972 | name_len2++; /* signature byte */ | |
1973 | } | |
1974 | ||
1975 | count = 1 /* 1st signature byte */ + name_len + name_len2; | |
1976 | pSMB->hdr.smb_buf_length += count; | |
1977 | pSMB->ByteCount = cpu_to_le16(count); | |
1978 | ||
1979 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1980 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 1981 | cifs_stats_inc(&tcon->num_renames); |
ad7a2926 | 1982 | if (rc) |
b6b38f70 | 1983 | cFYI(1, "Send error in rename = %d", rc); |
1da177e4 | 1984 | |
1da177e4 LT |
1985 | cifs_buf_release(pSMB); |
1986 | ||
1987 | if (rc == -EAGAIN) | |
1988 | goto renameRetry; | |
1989 | ||
1990 | return rc; | |
1991 | } | |
1992 | ||
50c2f753 | 1993 | int CIFSSMBRenameOpenFile(const int xid, struct cifsTconInfo *pTcon, |
391e5755 | 1994 | int netfid, const char *target_name, |
50c2f753 | 1995 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
1996 | { |
1997 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
1998 | struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; | |
50c2f753 | 1999 | struct set_file_rename *rename_info; |
1da177e4 LT |
2000 | char *data_offset; |
2001 | char dummy_string[30]; | |
2002 | int rc = 0; | |
2003 | int bytes_returned = 0; | |
2004 | int len_of_str; | |
2005 | __u16 params, param_offset, offset, count, byte_count; | |
2006 | ||
b6b38f70 | 2007 | cFYI(1, "Rename to File by handle"); |
1da177e4 LT |
2008 | rc = smb_init(SMB_COM_TRANSACTION2, 15, pTcon, (void **) &pSMB, |
2009 | (void **) &pSMBr); | |
2010 | if (rc) | |
2011 | return rc; | |
2012 | ||
2013 | params = 6; | |
2014 | pSMB->MaxSetupCount = 0; | |
2015 | pSMB->Reserved = 0; | |
2016 | pSMB->Flags = 0; | |
2017 | pSMB->Timeout = 0; | |
2018 | pSMB->Reserved2 = 0; | |
2019 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
2020 | offset = param_offset + params; | |
2021 | ||
2022 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
2023 | rename_info = (struct set_file_rename *) data_offset; | |
2024 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
ad7a2926 | 2025 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB from sess */ |
1da177e4 LT |
2026 | pSMB->SetupCount = 1; |
2027 | pSMB->Reserved3 = 0; | |
2028 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
2029 | byte_count = 3 /* pad */ + params; | |
2030 | pSMB->ParameterCount = cpu_to_le16(params); | |
2031 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
2032 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
2033 | pSMB->DataOffset = cpu_to_le16(offset); | |
2034 | /* construct random name ".cifs_tmp<inodenum><mid>" */ | |
2035 | rename_info->overwrite = cpu_to_le32(1); | |
2036 | rename_info->root_fid = 0; | |
2037 | /* unicode only call */ | |
790fe579 | 2038 | if (target_name == NULL) { |
50c2f753 SF |
2039 | sprintf(dummy_string, "cifs%x", pSMB->hdr.Mid); |
2040 | len_of_str = cifsConvertToUCS((__le16 *)rename_info->target_name, | |
737b758c | 2041 | dummy_string, 24, nls_codepage, remap); |
1da177e4 | 2042 | } else { |
b1a45695 | 2043 | len_of_str = cifsConvertToUCS((__le16 *)rename_info->target_name, |
50c2f753 SF |
2044 | target_name, PATH_MAX, nls_codepage, |
2045 | remap); | |
1da177e4 LT |
2046 | } |
2047 | rename_info->target_name_len = cpu_to_le32(2 * len_of_str); | |
391e5755 | 2048 | count = 12 /* sizeof(struct set_file_rename) */ + (2 * len_of_str); |
1da177e4 LT |
2049 | byte_count += count; |
2050 | pSMB->DataCount = cpu_to_le16(count); | |
2051 | pSMB->TotalDataCount = pSMB->DataCount; | |
2052 | pSMB->Fid = netfid; | |
2053 | pSMB->InformationLevel = | |
2054 | cpu_to_le16(SMB_SET_FILE_RENAME_INFORMATION); | |
2055 | pSMB->Reserved4 = 0; | |
2056 | pSMB->hdr.smb_buf_length += byte_count; | |
2057 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2058 | rc = SendReceive(xid, pTcon->ses, (struct smb_hdr *) pSMB, | |
50c2f753 | 2059 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
a4544347 | 2060 | cifs_stats_inc(&pTcon->num_t2renames); |
ad7a2926 | 2061 | if (rc) |
b6b38f70 | 2062 | cFYI(1, "Send error in Rename (by file handle) = %d", rc); |
a5a2b489 | 2063 | |
1da177e4 LT |
2064 | cifs_buf_release(pSMB); |
2065 | ||
2066 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
2067 | since file handle passed in no longer valid */ | |
2068 | ||
2069 | return rc; | |
2070 | } | |
2071 | ||
2072 | int | |
50c2f753 SF |
2073 | CIFSSMBCopy(const int xid, struct cifsTconInfo *tcon, const char *fromName, |
2074 | const __u16 target_tid, const char *toName, const int flags, | |
2075 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
2076 | { |
2077 | int rc = 0; | |
2078 | COPY_REQ *pSMB = NULL; | |
2079 | COPY_RSP *pSMBr = NULL; | |
2080 | int bytes_returned; | |
2081 | int name_len, name_len2; | |
2082 | __u16 count; | |
2083 | ||
b6b38f70 | 2084 | cFYI(1, "In CIFSSMBCopy"); |
1da177e4 LT |
2085 | copyRetry: |
2086 | rc = smb_init(SMB_COM_COPY, 1, tcon, (void **) &pSMB, | |
2087 | (void **) &pSMBr); | |
2088 | if (rc) | |
2089 | return rc; | |
2090 | ||
2091 | pSMB->BufferFormat = 0x04; | |
2092 | pSMB->Tid2 = target_tid; | |
2093 | ||
2094 | pSMB->Flags = cpu_to_le16(flags & COPY_TREE); | |
2095 | ||
2096 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
50c2f753 | 2097 | name_len = cifsConvertToUCS((__le16 *) pSMB->OldFileName, |
737b758c SF |
2098 | fromName, PATH_MAX, nls_codepage, |
2099 | remap); | |
1da177e4 LT |
2100 | name_len++; /* trailing null */ |
2101 | name_len *= 2; | |
2102 | pSMB->OldFileName[name_len] = 0x04; /* pad */ | |
2103 | /* protocol requires ASCII signature byte on Unicode string */ | |
2104 | pSMB->OldFileName[name_len + 1] = 0x00; | |
50c2f753 SF |
2105 | name_len2 = |
2106 | cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2], | |
737b758c | 2107 | toName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2108 | name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; |
2109 | name_len2 *= 2; /* convert to bytes */ | |
50c2f753 | 2110 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2111 | name_len = strnlen(fromName, PATH_MAX); |
2112 | name_len++; /* trailing null */ | |
2113 | strncpy(pSMB->OldFileName, fromName, name_len); | |
2114 | name_len2 = strnlen(toName, PATH_MAX); | |
2115 | name_len2++; /* trailing null */ | |
2116 | pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */ | |
2117 | strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2); | |
2118 | name_len2++; /* trailing null */ | |
2119 | name_len2++; /* signature byte */ | |
2120 | } | |
2121 | ||
2122 | count = 1 /* 1st signature byte */ + name_len + name_len2; | |
2123 | pSMB->hdr.smb_buf_length += count; | |
2124 | pSMB->ByteCount = cpu_to_le16(count); | |
2125 | ||
2126 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2127 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2128 | if (rc) { | |
b6b38f70 JP |
2129 | cFYI(1, "Send error in copy = %d with %d files copied", |
2130 | rc, le16_to_cpu(pSMBr->CopyCount)); | |
1da177e4 | 2131 | } |
0d817bc0 | 2132 | cifs_buf_release(pSMB); |
1da177e4 LT |
2133 | |
2134 | if (rc == -EAGAIN) | |
2135 | goto copyRetry; | |
2136 | ||
2137 | return rc; | |
2138 | } | |
2139 | ||
2140 | int | |
2141 | CIFSUnixCreateSymLink(const int xid, struct cifsTconInfo *tcon, | |
2142 | const char *fromName, const char *toName, | |
2143 | const struct nls_table *nls_codepage) | |
2144 | { | |
2145 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
2146 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
2147 | char *data_offset; | |
2148 | int name_len; | |
2149 | int name_len_target; | |
2150 | int rc = 0; | |
2151 | int bytes_returned = 0; | |
2152 | __u16 params, param_offset, offset, byte_count; | |
2153 | ||
b6b38f70 | 2154 | cFYI(1, "In Symlink Unix style"); |
1da177e4 LT |
2155 | createSymLinkRetry: |
2156 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2157 | (void **) &pSMBr); | |
2158 | if (rc) | |
2159 | return rc; | |
2160 | ||
2161 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2162 | name_len = | |
e89dc920 | 2163 | cifs_strtoUCS((__le16 *) pSMB->FileName, fromName, PATH_MAX |
1da177e4 LT |
2164 | /* find define for this maxpathcomponent */ |
2165 | , nls_codepage); | |
2166 | name_len++; /* trailing null */ | |
2167 | name_len *= 2; | |
2168 | ||
50c2f753 | 2169 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2170 | name_len = strnlen(fromName, PATH_MAX); |
2171 | name_len++; /* trailing null */ | |
2172 | strncpy(pSMB->FileName, fromName, name_len); | |
2173 | } | |
2174 | params = 6 + name_len; | |
2175 | pSMB->MaxSetupCount = 0; | |
2176 | pSMB->Reserved = 0; | |
2177 | pSMB->Flags = 0; | |
2178 | pSMB->Timeout = 0; | |
2179 | pSMB->Reserved2 = 0; | |
2180 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 2181 | InformationLevel) - 4; |
1da177e4 LT |
2182 | offset = param_offset + params; |
2183 | ||
2184 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
2185 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2186 | name_len_target = | |
e89dc920 | 2187 | cifs_strtoUCS((__le16 *) data_offset, toName, PATH_MAX |
1da177e4 LT |
2188 | /* find define for this maxpathcomponent */ |
2189 | , nls_codepage); | |
2190 | name_len_target++; /* trailing null */ | |
2191 | name_len_target *= 2; | |
50c2f753 | 2192 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2193 | name_len_target = strnlen(toName, PATH_MAX); |
2194 | name_len_target++; /* trailing null */ | |
2195 | strncpy(data_offset, toName, name_len_target); | |
2196 | } | |
2197 | ||
2198 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
2199 | /* BB find exact max on data count below from sess */ | |
2200 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
2201 | pSMB->SetupCount = 1; | |
2202 | pSMB->Reserved3 = 0; | |
2203 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
2204 | byte_count = 3 /* pad */ + params + name_len_target; | |
2205 | pSMB->DataCount = cpu_to_le16(name_len_target); | |
2206 | pSMB->ParameterCount = cpu_to_le16(params); | |
2207 | pSMB->TotalDataCount = pSMB->DataCount; | |
2208 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
2209 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
2210 | pSMB->DataOffset = cpu_to_le16(offset); | |
2211 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_LINK); | |
2212 | pSMB->Reserved4 = 0; | |
2213 | pSMB->hdr.smb_buf_length += byte_count; | |
2214 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2215 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2216 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 2217 | cifs_stats_inc(&tcon->num_symlinks); |
ad7a2926 | 2218 | if (rc) |
b6b38f70 | 2219 | cFYI(1, "Send error in SetPathInfo create symlink = %d", rc); |
1da177e4 | 2220 | |
0d817bc0 | 2221 | cifs_buf_release(pSMB); |
1da177e4 LT |
2222 | |
2223 | if (rc == -EAGAIN) | |
2224 | goto createSymLinkRetry; | |
2225 | ||
2226 | return rc; | |
2227 | } | |
2228 | ||
2229 | int | |
2230 | CIFSUnixCreateHardLink(const int xid, struct cifsTconInfo *tcon, | |
2231 | const char *fromName, const char *toName, | |
737b758c | 2232 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
2233 | { |
2234 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
2235 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
2236 | char *data_offset; | |
2237 | int name_len; | |
2238 | int name_len_target; | |
2239 | int rc = 0; | |
2240 | int bytes_returned = 0; | |
2241 | __u16 params, param_offset, offset, byte_count; | |
2242 | ||
b6b38f70 | 2243 | cFYI(1, "In Create Hard link Unix style"); |
1da177e4 LT |
2244 | createHardLinkRetry: |
2245 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2246 | (void **) &pSMBr); | |
2247 | if (rc) | |
2248 | return rc; | |
2249 | ||
2250 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
b1a45695 | 2251 | name_len = cifsConvertToUCS((__le16 *) pSMB->FileName, toName, |
737b758c | 2252 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2253 | name_len++; /* trailing null */ |
2254 | name_len *= 2; | |
2255 | ||
50c2f753 | 2256 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2257 | name_len = strnlen(toName, PATH_MAX); |
2258 | name_len++; /* trailing null */ | |
2259 | strncpy(pSMB->FileName, toName, name_len); | |
2260 | } | |
2261 | params = 6 + name_len; | |
2262 | pSMB->MaxSetupCount = 0; | |
2263 | pSMB->Reserved = 0; | |
2264 | pSMB->Flags = 0; | |
2265 | pSMB->Timeout = 0; | |
2266 | pSMB->Reserved2 = 0; | |
2267 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 2268 | InformationLevel) - 4; |
1da177e4 LT |
2269 | offset = param_offset + params; |
2270 | ||
2271 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
2272 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2273 | name_len_target = | |
b1a45695 | 2274 | cifsConvertToUCS((__le16 *) data_offset, fromName, PATH_MAX, |
737b758c | 2275 | nls_codepage, remap); |
1da177e4 LT |
2276 | name_len_target++; /* trailing null */ |
2277 | name_len_target *= 2; | |
50c2f753 | 2278 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2279 | name_len_target = strnlen(fromName, PATH_MAX); |
2280 | name_len_target++; /* trailing null */ | |
2281 | strncpy(data_offset, fromName, name_len_target); | |
2282 | } | |
2283 | ||
2284 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
2285 | /* BB find exact max on data count below from sess*/ | |
2286 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
2287 | pSMB->SetupCount = 1; | |
2288 | pSMB->Reserved3 = 0; | |
2289 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
2290 | byte_count = 3 /* pad */ + params + name_len_target; | |
2291 | pSMB->ParameterCount = cpu_to_le16(params); | |
2292 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
2293 | pSMB->DataCount = cpu_to_le16(name_len_target); | |
2294 | pSMB->TotalDataCount = pSMB->DataCount; | |
2295 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
2296 | pSMB->DataOffset = cpu_to_le16(offset); | |
2297 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_HLINK); | |
2298 | pSMB->Reserved4 = 0; | |
2299 | pSMB->hdr.smb_buf_length += byte_count; | |
2300 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2301 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2302 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 2303 | cifs_stats_inc(&tcon->num_hardlinks); |
ad7a2926 | 2304 | if (rc) |
b6b38f70 | 2305 | cFYI(1, "Send error in SetPathInfo (hard link) = %d", rc); |
1da177e4 LT |
2306 | |
2307 | cifs_buf_release(pSMB); | |
2308 | if (rc == -EAGAIN) | |
2309 | goto createHardLinkRetry; | |
2310 | ||
2311 | return rc; | |
2312 | } | |
2313 | ||
2314 | int | |
2315 | CIFSCreateHardLink(const int xid, struct cifsTconInfo *tcon, | |
2316 | const char *fromName, const char *toName, | |
737b758c | 2317 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
2318 | { |
2319 | int rc = 0; | |
2320 | NT_RENAME_REQ *pSMB = NULL; | |
2321 | RENAME_RSP *pSMBr = NULL; | |
2322 | int bytes_returned; | |
2323 | int name_len, name_len2; | |
2324 | __u16 count; | |
2325 | ||
b6b38f70 | 2326 | cFYI(1, "In CIFSCreateHardLink"); |
1da177e4 LT |
2327 | winCreateHardLinkRetry: |
2328 | ||
2329 | rc = smb_init(SMB_COM_NT_RENAME, 4, tcon, (void **) &pSMB, | |
2330 | (void **) &pSMBr); | |
2331 | if (rc) | |
2332 | return rc; | |
2333 | ||
2334 | pSMB->SearchAttributes = | |
2335 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | | |
2336 | ATTR_DIRECTORY); | |
2337 | pSMB->Flags = cpu_to_le16(CREATE_HARD_LINK); | |
2338 | pSMB->ClusterCount = 0; | |
2339 | ||
2340 | pSMB->BufferFormat = 0x04; | |
2341 | ||
2342 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2343 | name_len = | |
b1a45695 | 2344 | cifsConvertToUCS((__le16 *) pSMB->OldFileName, fromName, |
737b758c | 2345 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2346 | name_len++; /* trailing null */ |
2347 | name_len *= 2; | |
fcc7c09d JL |
2348 | |
2349 | /* protocol specifies ASCII buffer format (0x04) for unicode */ | |
2350 | pSMB->OldFileName[name_len] = 0x04; | |
2351 | pSMB->OldFileName[name_len + 1] = 0x00; /* pad */ | |
1da177e4 | 2352 | name_len2 = |
50c2f753 | 2353 | cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2], |
737b758c | 2354 | toName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2355 | name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; |
2356 | name_len2 *= 2; /* convert to bytes */ | |
50c2f753 | 2357 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2358 | name_len = strnlen(fromName, PATH_MAX); |
2359 | name_len++; /* trailing null */ | |
2360 | strncpy(pSMB->OldFileName, fromName, name_len); | |
2361 | name_len2 = strnlen(toName, PATH_MAX); | |
2362 | name_len2++; /* trailing null */ | |
2363 | pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */ | |
2364 | strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2); | |
2365 | name_len2++; /* trailing null */ | |
2366 | name_len2++; /* signature byte */ | |
2367 | } | |
2368 | ||
2369 | count = 1 /* string type byte */ + name_len + name_len2; | |
2370 | pSMB->hdr.smb_buf_length += count; | |
2371 | pSMB->ByteCount = cpu_to_le16(count); | |
2372 | ||
2373 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2374 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 2375 | cifs_stats_inc(&tcon->num_hardlinks); |
ad7a2926 | 2376 | if (rc) |
b6b38f70 | 2377 | cFYI(1, "Send error in hard link (NT rename) = %d", rc); |
ad7a2926 | 2378 | |
1da177e4 LT |
2379 | cifs_buf_release(pSMB); |
2380 | if (rc == -EAGAIN) | |
2381 | goto winCreateHardLinkRetry; | |
2382 | ||
2383 | return rc; | |
2384 | } | |
2385 | ||
2386 | int | |
2387 | CIFSSMBUnixQuerySymLink(const int xid, struct cifsTconInfo *tcon, | |
460b9696 | 2388 | const unsigned char *searchName, char **symlinkinfo, |
1da177e4 LT |
2389 | const struct nls_table *nls_codepage) |
2390 | { | |
2391 | /* SMB_QUERY_FILE_UNIX_LINK */ | |
2392 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
2393 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
2394 | int rc = 0; | |
2395 | int bytes_returned; | |
2396 | int name_len; | |
2397 | __u16 params, byte_count; | |
460b9696 | 2398 | char *data_start; |
1da177e4 | 2399 | |
b6b38f70 | 2400 | cFYI(1, "In QPathSymLinkInfo (Unix) for path %s", searchName); |
1da177e4 LT |
2401 | |
2402 | querySymLinkRetry: | |
2403 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2404 | (void **) &pSMBr); | |
2405 | if (rc) | |
2406 | return rc; | |
2407 | ||
2408 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2409 | name_len = | |
50c2f753 SF |
2410 | cifs_strtoUCS((__le16 *) pSMB->FileName, searchName, |
2411 | PATH_MAX, nls_codepage); | |
1da177e4 LT |
2412 | name_len++; /* trailing null */ |
2413 | name_len *= 2; | |
50c2f753 | 2414 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2415 | name_len = strnlen(searchName, PATH_MAX); |
2416 | name_len++; /* trailing null */ | |
2417 | strncpy(pSMB->FileName, searchName, name_len); | |
2418 | } | |
2419 | ||
2420 | params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ; | |
2421 | pSMB->TotalDataCount = 0; | |
2422 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
46a7574c | 2423 | pSMB->MaxDataCount = cpu_to_le16(CIFSMaxBufSize); |
1da177e4 LT |
2424 | pSMB->MaxSetupCount = 0; |
2425 | pSMB->Reserved = 0; | |
2426 | pSMB->Flags = 0; | |
2427 | pSMB->Timeout = 0; | |
2428 | pSMB->Reserved2 = 0; | |
2429 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 2430 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
1da177e4 LT |
2431 | pSMB->DataCount = 0; |
2432 | pSMB->DataOffset = 0; | |
2433 | pSMB->SetupCount = 1; | |
2434 | pSMB->Reserved3 = 0; | |
2435 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
2436 | byte_count = params + 1 /* pad */ ; | |
2437 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
2438 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2439 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_UNIX_LINK); | |
2440 | pSMB->Reserved4 = 0; | |
2441 | pSMB->hdr.smb_buf_length += byte_count; | |
2442 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2443 | ||
2444 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2445 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2446 | if (rc) { | |
b6b38f70 | 2447 | cFYI(1, "Send error in QuerySymLinkInfo = %d", rc); |
1da177e4 LT |
2448 | } else { |
2449 | /* decode response */ | |
2450 | ||
2451 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
1da177e4 | 2452 | /* BB also check enough total bytes returned */ |
460b9696 JL |
2453 | if (rc || (pSMBr->ByteCount < 2)) |
2454 | rc = -EIO; | |
1da177e4 | 2455 | else { |
0e0d2cf3 | 2456 | bool is_unicode; |
460b9696 JL |
2457 | u16 count = le16_to_cpu(pSMBr->t2.DataCount); |
2458 | ||
2459 | data_start = ((char *) &pSMBr->hdr.Protocol) + | |
2460 | le16_to_cpu(pSMBr->t2.DataOffset); | |
1da177e4 | 2461 | |
0e0d2cf3 SF |
2462 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) |
2463 | is_unicode = true; | |
2464 | else | |
2465 | is_unicode = false; | |
2466 | ||
737b758c | 2467 | /* BB FIXME investigate remapping reserved chars here */ |
d185cda7 | 2468 | *symlinkinfo = cifs_strndup_from_ucs(data_start, count, |
0e0d2cf3 | 2469 | is_unicode, nls_codepage); |
8b6427a2 | 2470 | if (!*symlinkinfo) |
460b9696 | 2471 | rc = -ENOMEM; |
1da177e4 LT |
2472 | } |
2473 | } | |
2474 | cifs_buf_release(pSMB); | |
2475 | if (rc == -EAGAIN) | |
2476 | goto querySymLinkRetry; | |
2477 | return rc; | |
2478 | } | |
2479 | ||
c9489779 | 2480 | #ifdef CONFIG_CIFS_EXPERIMENTAL |
0a4b92c0 SF |
2481 | /* Initialize NT TRANSACT SMB into small smb request buffer. |
2482 | This assumes that all NT TRANSACTS that we init here have | |
2483 | total parm and data under about 400 bytes (to fit in small cifs | |
2484 | buffer size), which is the case so far, it easily fits. NB: | |
2485 | Setup words themselves and ByteCount | |
2486 | MaxSetupCount (size of returned setup area) and | |
2487 | MaxParameterCount (returned parms size) must be set by caller */ | |
50c2f753 | 2488 | static int |
b9c7a2bb | 2489 | smb_init_nttransact(const __u16 sub_command, const int setup_count, |
0a4b92c0 | 2490 | const int parm_len, struct cifsTconInfo *tcon, |
50c2f753 | 2491 | void **ret_buf) |
0a4b92c0 SF |
2492 | { |
2493 | int rc; | |
2494 | __u32 temp_offset; | |
50c2f753 | 2495 | struct smb_com_ntransact_req *pSMB; |
0a4b92c0 SF |
2496 | |
2497 | rc = small_smb_init(SMB_COM_NT_TRANSACT, 19 + setup_count, tcon, | |
2498 | (void **)&pSMB); | |
2499 | if (rc) | |
2500 | return rc; | |
2501 | *ret_buf = (void *)pSMB; | |
2502 | pSMB->Reserved = 0; | |
2503 | pSMB->TotalParameterCount = cpu_to_le32(parm_len); | |
2504 | pSMB->TotalDataCount = 0; | |
2505 | pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf - | |
2506 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
2507 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2508 | pSMB->DataCount = pSMB->TotalDataCount; | |
2509 | temp_offset = offsetof(struct smb_com_ntransact_req, Parms) + | |
2510 | (setup_count * 2) - 4 /* for rfc1001 length itself */; | |
2511 | pSMB->ParameterOffset = cpu_to_le32(temp_offset); | |
2512 | pSMB->DataOffset = cpu_to_le32(temp_offset + parm_len); | |
2513 | pSMB->SetupCount = setup_count; /* no need to le convert byte fields */ | |
2514 | pSMB->SubCommand = cpu_to_le16(sub_command); | |
2515 | return 0; | |
2516 | } | |
2517 | ||
2518 | static int | |
50c2f753 | 2519 | validate_ntransact(char *buf, char **ppparm, char **ppdata, |
b9c7a2bb | 2520 | __u32 *pparmlen, __u32 *pdatalen) |
0a4b92c0 | 2521 | { |
50c2f753 | 2522 | char *end_of_smb; |
0a4b92c0 | 2523 | __u32 data_count, data_offset, parm_count, parm_offset; |
50c2f753 | 2524 | struct smb_com_ntransact_rsp *pSMBr; |
0a4b92c0 | 2525 | |
630f3f0c SF |
2526 | *pdatalen = 0; |
2527 | *pparmlen = 0; | |
2528 | ||
790fe579 | 2529 | if (buf == NULL) |
0a4b92c0 SF |
2530 | return -EINVAL; |
2531 | ||
2532 | pSMBr = (struct smb_com_ntransact_rsp *)buf; | |
2533 | ||
2534 | /* ByteCount was converted from little endian in SendReceive */ | |
50c2f753 | 2535 | end_of_smb = 2 /* sizeof byte count */ + pSMBr->ByteCount + |
0a4b92c0 SF |
2536 | (char *)&pSMBr->ByteCount; |
2537 | ||
0a4b92c0 SF |
2538 | data_offset = le32_to_cpu(pSMBr->DataOffset); |
2539 | data_count = le32_to_cpu(pSMBr->DataCount); | |
50c2f753 | 2540 | parm_offset = le32_to_cpu(pSMBr->ParameterOffset); |
0a4b92c0 SF |
2541 | parm_count = le32_to_cpu(pSMBr->ParameterCount); |
2542 | ||
2543 | *ppparm = (char *)&pSMBr->hdr.Protocol + parm_offset; | |
2544 | *ppdata = (char *)&pSMBr->hdr.Protocol + data_offset; | |
2545 | ||
2546 | /* should we also check that parm and data areas do not overlap? */ | |
790fe579 | 2547 | if (*ppparm > end_of_smb) { |
b6b38f70 | 2548 | cFYI(1, "parms start after end of smb"); |
0a4b92c0 | 2549 | return -EINVAL; |
790fe579 | 2550 | } else if (parm_count + *ppparm > end_of_smb) { |
b6b38f70 | 2551 | cFYI(1, "parm end after end of smb"); |
0a4b92c0 | 2552 | return -EINVAL; |
790fe579 | 2553 | } else if (*ppdata > end_of_smb) { |
b6b38f70 | 2554 | cFYI(1, "data starts after end of smb"); |
0a4b92c0 | 2555 | return -EINVAL; |
790fe579 | 2556 | } else if (data_count + *ppdata > end_of_smb) { |
f19159dc | 2557 | cFYI(1, "data %p + count %d (%p) past smb end %p start %p", |
50c2f753 | 2558 | *ppdata, data_count, (data_count + *ppdata), |
b6b38f70 | 2559 | end_of_smb, pSMBr); |
0a4b92c0 | 2560 | return -EINVAL; |
790fe579 | 2561 | } else if (parm_count + data_count > pSMBr->ByteCount) { |
b6b38f70 | 2562 | cFYI(1, "parm count and data count larger than SMB"); |
0a4b92c0 SF |
2563 | return -EINVAL; |
2564 | } | |
630f3f0c SF |
2565 | *pdatalen = data_count; |
2566 | *pparmlen = parm_count; | |
0a4b92c0 SF |
2567 | return 0; |
2568 | } | |
2569 | ||
1da177e4 LT |
2570 | int |
2571 | CIFSSMBQueryReparseLinkInfo(const int xid, struct cifsTconInfo *tcon, | |
2572 | const unsigned char *searchName, | |
50c2f753 | 2573 | char *symlinkinfo, const int buflen, __u16 fid, |
1da177e4 LT |
2574 | const struct nls_table *nls_codepage) |
2575 | { | |
2576 | int rc = 0; | |
2577 | int bytes_returned; | |
50c2f753 SF |
2578 | struct smb_com_transaction_ioctl_req *pSMB; |
2579 | struct smb_com_transaction_ioctl_rsp *pSMBr; | |
1da177e4 | 2580 | |
b6b38f70 | 2581 | cFYI(1, "In Windows reparse style QueryLink for path %s", searchName); |
1da177e4 LT |
2582 | rc = smb_init(SMB_COM_NT_TRANSACT, 23, tcon, (void **) &pSMB, |
2583 | (void **) &pSMBr); | |
2584 | if (rc) | |
2585 | return rc; | |
2586 | ||
2587 | pSMB->TotalParameterCount = 0 ; | |
2588 | pSMB->TotalDataCount = 0; | |
2589 | pSMB->MaxParameterCount = cpu_to_le32(2); | |
2590 | /* BB find exact data count max from sess structure BB */ | |
0a4b92c0 SF |
2591 | pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf - |
2592 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
1da177e4 LT |
2593 | pSMB->MaxSetupCount = 4; |
2594 | pSMB->Reserved = 0; | |
2595 | pSMB->ParameterOffset = 0; | |
2596 | pSMB->DataCount = 0; | |
2597 | pSMB->DataOffset = 0; | |
2598 | pSMB->SetupCount = 4; | |
2599 | pSMB->SubCommand = cpu_to_le16(NT_TRANSACT_IOCTL); | |
2600 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2601 | pSMB->FunctionCode = cpu_to_le32(FSCTL_GET_REPARSE_POINT); | |
2602 | pSMB->IsFsctl = 1; /* FSCTL */ | |
2603 | pSMB->IsRootFlag = 0; | |
2604 | pSMB->Fid = fid; /* file handle always le */ | |
2605 | pSMB->ByteCount = 0; | |
2606 | ||
2607 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2608 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2609 | if (rc) { | |
b6b38f70 | 2610 | cFYI(1, "Send error in QueryReparseLinkInfo = %d", rc); |
1da177e4 LT |
2611 | } else { /* decode response */ |
2612 | __u32 data_offset = le32_to_cpu(pSMBr->DataOffset); | |
2613 | __u32 data_count = le32_to_cpu(pSMBr->DataCount); | |
afe48c31 | 2614 | if ((pSMBr->ByteCount < 2) || (data_offset > 512)) { |
1da177e4 LT |
2615 | /* BB also check enough total bytes returned */ |
2616 | rc = -EIO; /* bad smb */ | |
afe48c31 SF |
2617 | goto qreparse_out; |
2618 | } | |
2619 | if (data_count && (data_count < 2048)) { | |
2620 | char *end_of_smb = 2 /* sizeof byte count */ + | |
2621 | pSMBr->ByteCount + (char *)&pSMBr->ByteCount; | |
1da177e4 | 2622 | |
afe48c31 | 2623 | struct reparse_data *reparse_buf = |
50c2f753 SF |
2624 | (struct reparse_data *) |
2625 | ((char *)&pSMBr->hdr.Protocol | |
2626 | + data_offset); | |
afe48c31 SF |
2627 | if ((char *)reparse_buf >= end_of_smb) { |
2628 | rc = -EIO; | |
2629 | goto qreparse_out; | |
2630 | } | |
2631 | if ((reparse_buf->LinkNamesBuf + | |
2632 | reparse_buf->TargetNameOffset + | |
2633 | reparse_buf->TargetNameLen) > end_of_smb) { | |
b6b38f70 | 2634 | cFYI(1, "reparse buf beyond SMB"); |
afe48c31 SF |
2635 | rc = -EIO; |
2636 | goto qreparse_out; | |
2637 | } | |
50c2f753 | 2638 | |
afe48c31 SF |
2639 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { |
2640 | cifs_from_ucs2(symlinkinfo, (__le16 *) | |
50c2f753 SF |
2641 | (reparse_buf->LinkNamesBuf + |
2642 | reparse_buf->TargetNameOffset), | |
afe48c31 SF |
2643 | buflen, |
2644 | reparse_buf->TargetNameLen, | |
2645 | nls_codepage, 0); | |
2646 | } else { /* ASCII names */ | |
2647 | strncpy(symlinkinfo, | |
2648 | reparse_buf->LinkNamesBuf + | |
2649 | reparse_buf->TargetNameOffset, | |
2650 | min_t(const int, buflen, | |
2651 | reparse_buf->TargetNameLen)); | |
1da177e4 | 2652 | } |
afe48c31 SF |
2653 | } else { |
2654 | rc = -EIO; | |
b6b38f70 JP |
2655 | cFYI(1, "Invalid return data count on " |
2656 | "get reparse info ioctl"); | |
1da177e4 | 2657 | } |
afe48c31 SF |
2658 | symlinkinfo[buflen] = 0; /* just in case so the caller |
2659 | does not go off the end of the buffer */ | |
b6b38f70 | 2660 | cFYI(1, "readlink result - %s", symlinkinfo); |
1da177e4 | 2661 | } |
989c7e51 | 2662 | |
1da177e4 | 2663 | qreparse_out: |
4a6d87f1 | 2664 | cifs_buf_release(pSMB); |
1da177e4 LT |
2665 | |
2666 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
2667 | since file handle passed in no longer valid */ | |
2668 | ||
2669 | return rc; | |
2670 | } | |
afe48c31 | 2671 | #endif /* CIFS_EXPERIMENTAL */ |
1da177e4 LT |
2672 | |
2673 | #ifdef CONFIG_CIFS_POSIX | |
2674 | ||
2675 | /*Convert an Access Control Entry from wire format to local POSIX xattr format*/ | |
50c2f753 SF |
2676 | static void cifs_convert_ace(posix_acl_xattr_entry *ace, |
2677 | struct cifs_posix_ace *cifs_ace) | |
1da177e4 LT |
2678 | { |
2679 | /* u8 cifs fields do not need le conversion */ | |
ff7feac9 SF |
2680 | ace->e_perm = cpu_to_le16(cifs_ace->cifs_e_perm); |
2681 | ace->e_tag = cpu_to_le16(cifs_ace->cifs_e_tag); | |
2682 | ace->e_id = cpu_to_le32(le64_to_cpu(cifs_ace->cifs_uid)); | |
b6b38f70 | 2683 | /* cFYI(1, "perm %d tag %d id %d",ace->e_perm,ace->e_tag,ace->e_id); */ |
1da177e4 LT |
2684 | |
2685 | return; | |
2686 | } | |
2687 | ||
2688 | /* Convert ACL from CIFS POSIX wire format to local Linux POSIX ACL xattr */ | |
50c2f753 SF |
2689 | static int cifs_copy_posix_acl(char *trgt, char *src, const int buflen, |
2690 | const int acl_type, const int size_of_data_area) | |
1da177e4 LT |
2691 | { |
2692 | int size = 0; | |
2693 | int i; | |
2694 | __u16 count; | |
50c2f753 SF |
2695 | struct cifs_posix_ace *pACE; |
2696 | struct cifs_posix_acl *cifs_acl = (struct cifs_posix_acl *)src; | |
2697 | posix_acl_xattr_header *local_acl = (posix_acl_xattr_header *)trgt; | |
1da177e4 LT |
2698 | |
2699 | if (le16_to_cpu(cifs_acl->version) != CIFS_ACL_VERSION) | |
2700 | return -EOPNOTSUPP; | |
2701 | ||
790fe579 | 2702 | if (acl_type & ACL_TYPE_ACCESS) { |
1da177e4 LT |
2703 | count = le16_to_cpu(cifs_acl->access_entry_count); |
2704 | pACE = &cifs_acl->ace_array[0]; | |
2705 | size = sizeof(struct cifs_posix_acl); | |
2706 | size += sizeof(struct cifs_posix_ace) * count; | |
2707 | /* check if we would go beyond end of SMB */ | |
790fe579 | 2708 | if (size_of_data_area < size) { |
b6b38f70 JP |
2709 | cFYI(1, "bad CIFS POSIX ACL size %d vs. %d", |
2710 | size_of_data_area, size); | |
1da177e4 LT |
2711 | return -EINVAL; |
2712 | } | |
790fe579 | 2713 | } else if (acl_type & ACL_TYPE_DEFAULT) { |
1da177e4 LT |
2714 | count = le16_to_cpu(cifs_acl->access_entry_count); |
2715 | size = sizeof(struct cifs_posix_acl); | |
2716 | size += sizeof(struct cifs_posix_ace) * count; | |
2717 | /* skip past access ACEs to get to default ACEs */ | |
2718 | pACE = &cifs_acl->ace_array[count]; | |
2719 | count = le16_to_cpu(cifs_acl->default_entry_count); | |
2720 | size += sizeof(struct cifs_posix_ace) * count; | |
2721 | /* check if we would go beyond end of SMB */ | |
790fe579 | 2722 | if (size_of_data_area < size) |
1da177e4 LT |
2723 | return -EINVAL; |
2724 | } else { | |
2725 | /* illegal type */ | |
2726 | return -EINVAL; | |
2727 | } | |
2728 | ||
2729 | size = posix_acl_xattr_size(count); | |
790fe579 | 2730 | if ((buflen == 0) || (local_acl == NULL)) { |
50c2f753 | 2731 | /* used to query ACL EA size */ |
790fe579 | 2732 | } else if (size > buflen) { |
1da177e4 LT |
2733 | return -ERANGE; |
2734 | } else /* buffer big enough */ { | |
ff7feac9 | 2735 | local_acl->a_version = cpu_to_le32(POSIX_ACL_XATTR_VERSION); |
50c2f753 SF |
2736 | for (i = 0; i < count ; i++) { |
2737 | cifs_convert_ace(&local_acl->a_entries[i], pACE); | |
2738 | pACE++; | |
1da177e4 LT |
2739 | } |
2740 | } | |
2741 | return size; | |
2742 | } | |
2743 | ||
50c2f753 SF |
2744 | static __u16 convert_ace_to_cifs_ace(struct cifs_posix_ace *cifs_ace, |
2745 | const posix_acl_xattr_entry *local_ace) | |
1da177e4 LT |
2746 | { |
2747 | __u16 rc = 0; /* 0 = ACL converted ok */ | |
2748 | ||
ff7feac9 SF |
2749 | cifs_ace->cifs_e_perm = le16_to_cpu(local_ace->e_perm); |
2750 | cifs_ace->cifs_e_tag = le16_to_cpu(local_ace->e_tag); | |
1da177e4 | 2751 | /* BB is there a better way to handle the large uid? */ |
790fe579 | 2752 | if (local_ace->e_id == cpu_to_le32(-1)) { |
1da177e4 LT |
2753 | /* Probably no need to le convert -1 on any arch but can not hurt */ |
2754 | cifs_ace->cifs_uid = cpu_to_le64(-1); | |
50c2f753 | 2755 | } else |
ff7feac9 | 2756 | cifs_ace->cifs_uid = cpu_to_le64(le32_to_cpu(local_ace->e_id)); |
b6b38f70 | 2757 | /*cFYI(1, "perm %d tag %d id %d",ace->e_perm,ace->e_tag,ace->e_id);*/ |
1da177e4 LT |
2758 | return rc; |
2759 | } | |
2760 | ||
2761 | /* Convert ACL from local Linux POSIX xattr to CIFS POSIX ACL wire format */ | |
50c2f753 SF |
2762 | static __u16 ACL_to_cifs_posix(char *parm_data, const char *pACL, |
2763 | const int buflen, const int acl_type) | |
1da177e4 LT |
2764 | { |
2765 | __u16 rc = 0; | |
50c2f753 SF |
2766 | struct cifs_posix_acl *cifs_acl = (struct cifs_posix_acl *)parm_data; |
2767 | posix_acl_xattr_header *local_acl = (posix_acl_xattr_header *)pACL; | |
1da177e4 LT |
2768 | int count; |
2769 | int i; | |
2770 | ||
790fe579 | 2771 | if ((buflen == 0) || (pACL == NULL) || (cifs_acl == NULL)) |
1da177e4 LT |
2772 | return 0; |
2773 | ||
2774 | count = posix_acl_xattr_count((size_t)buflen); | |
b6b38f70 | 2775 | cFYI(1, "setting acl with %d entries from buf of length %d and " |
63135e08 | 2776 | "version of %d", |
b6b38f70 | 2777 | count, buflen, le32_to_cpu(local_acl->a_version)); |
790fe579 | 2778 | if (le32_to_cpu(local_acl->a_version) != 2) { |
b6b38f70 JP |
2779 | cFYI(1, "unknown POSIX ACL version %d", |
2780 | le32_to_cpu(local_acl->a_version)); | |
1da177e4 LT |
2781 | return 0; |
2782 | } | |
2783 | cifs_acl->version = cpu_to_le16(1); | |
790fe579 | 2784 | if (acl_type == ACL_TYPE_ACCESS) |
ff7feac9 | 2785 | cifs_acl->access_entry_count = cpu_to_le16(count); |
790fe579 | 2786 | else if (acl_type == ACL_TYPE_DEFAULT) |
ff7feac9 | 2787 | cifs_acl->default_entry_count = cpu_to_le16(count); |
1da177e4 | 2788 | else { |
b6b38f70 | 2789 | cFYI(1, "unknown ACL type %d", acl_type); |
1da177e4 LT |
2790 | return 0; |
2791 | } | |
50c2f753 | 2792 | for (i = 0; i < count; i++) { |
1da177e4 LT |
2793 | rc = convert_ace_to_cifs_ace(&cifs_acl->ace_array[i], |
2794 | &local_acl->a_entries[i]); | |
790fe579 | 2795 | if (rc != 0) { |
1da177e4 LT |
2796 | /* ACE not converted */ |
2797 | break; | |
2798 | } | |
2799 | } | |
790fe579 | 2800 | if (rc == 0) { |
1da177e4 LT |
2801 | rc = (__u16)(count * sizeof(struct cifs_posix_ace)); |
2802 | rc += sizeof(struct cifs_posix_acl); | |
2803 | /* BB add check to make sure ACL does not overflow SMB */ | |
2804 | } | |
2805 | return rc; | |
2806 | } | |
2807 | ||
2808 | int | |
2809 | CIFSSMBGetPosixACL(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 SF |
2810 | const unsigned char *searchName, |
2811 | char *acl_inf, const int buflen, const int acl_type, | |
2812 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
2813 | { |
2814 | /* SMB_QUERY_POSIX_ACL */ | |
2815 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
2816 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
2817 | int rc = 0; | |
2818 | int bytes_returned; | |
2819 | int name_len; | |
2820 | __u16 params, byte_count; | |
50c2f753 | 2821 | |
b6b38f70 | 2822 | cFYI(1, "In GetPosixACL (Unix) for path %s", searchName); |
1da177e4 LT |
2823 | |
2824 | queryAclRetry: | |
2825 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2826 | (void **) &pSMBr); | |
2827 | if (rc) | |
2828 | return rc; | |
50c2f753 | 2829 | |
1da177e4 LT |
2830 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
2831 | name_len = | |
50c2f753 | 2832 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 2833 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2834 | name_len++; /* trailing null */ |
2835 | name_len *= 2; | |
2836 | pSMB->FileName[name_len] = 0; | |
2837 | pSMB->FileName[name_len+1] = 0; | |
50c2f753 | 2838 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2839 | name_len = strnlen(searchName, PATH_MAX); |
2840 | name_len++; /* trailing null */ | |
2841 | strncpy(pSMB->FileName, searchName, name_len); | |
2842 | } | |
2843 | ||
2844 | params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ; | |
2845 | pSMB->TotalDataCount = 0; | |
2846 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
50c2f753 | 2847 | /* BB find exact max data count below from sess structure BB */ |
1da177e4 LT |
2848 | pSMB->MaxDataCount = cpu_to_le16(4000); |
2849 | pSMB->MaxSetupCount = 0; | |
2850 | pSMB->Reserved = 0; | |
2851 | pSMB->Flags = 0; | |
2852 | pSMB->Timeout = 0; | |
2853 | pSMB->Reserved2 = 0; | |
2854 | pSMB->ParameterOffset = cpu_to_le16( | |
50c2f753 SF |
2855 | offsetof(struct smb_com_transaction2_qpi_req, |
2856 | InformationLevel) - 4); | |
1da177e4 LT |
2857 | pSMB->DataCount = 0; |
2858 | pSMB->DataOffset = 0; | |
2859 | pSMB->SetupCount = 1; | |
2860 | pSMB->Reserved3 = 0; | |
2861 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
2862 | byte_count = params + 1 /* pad */ ; | |
2863 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
2864 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2865 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_POSIX_ACL); | |
2866 | pSMB->Reserved4 = 0; | |
2867 | pSMB->hdr.smb_buf_length += byte_count; | |
2868 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2869 | ||
2870 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2871 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
0a4b92c0 | 2872 | cifs_stats_inc(&tcon->num_acl_get); |
1da177e4 | 2873 | if (rc) { |
b6b38f70 | 2874 | cFYI(1, "Send error in Query POSIX ACL = %d", rc); |
1da177e4 LT |
2875 | } else { |
2876 | /* decode response */ | |
50c2f753 | 2877 | |
1da177e4 LT |
2878 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
2879 | if (rc || (pSMBr->ByteCount < 2)) | |
2880 | /* BB also check enough total bytes returned */ | |
2881 | rc = -EIO; /* bad smb */ | |
2882 | else { | |
2883 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
2884 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); | |
2885 | rc = cifs_copy_posix_acl(acl_inf, | |
2886 | (char *)&pSMBr->hdr.Protocol+data_offset, | |
50c2f753 | 2887 | buflen, acl_type, count); |
1da177e4 LT |
2888 | } |
2889 | } | |
2890 | cifs_buf_release(pSMB); | |
2891 | if (rc == -EAGAIN) | |
2892 | goto queryAclRetry; | |
2893 | return rc; | |
2894 | } | |
2895 | ||
2896 | int | |
2897 | CIFSSMBSetPosixACL(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 SF |
2898 | const unsigned char *fileName, |
2899 | const char *local_acl, const int buflen, | |
2900 | const int acl_type, | |
2901 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
2902 | { |
2903 | struct smb_com_transaction2_spi_req *pSMB = NULL; | |
2904 | struct smb_com_transaction2_spi_rsp *pSMBr = NULL; | |
2905 | char *parm_data; | |
2906 | int name_len; | |
2907 | int rc = 0; | |
2908 | int bytes_returned = 0; | |
2909 | __u16 params, byte_count, data_count, param_offset, offset; | |
2910 | ||
b6b38f70 | 2911 | cFYI(1, "In SetPosixACL (Unix) for path %s", fileName); |
1da177e4 LT |
2912 | setAclRetry: |
2913 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
50c2f753 | 2914 | (void **) &pSMBr); |
1da177e4 LT |
2915 | if (rc) |
2916 | return rc; | |
2917 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2918 | name_len = | |
50c2f753 | 2919 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 2920 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2921 | name_len++; /* trailing null */ |
2922 | name_len *= 2; | |
50c2f753 | 2923 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2924 | name_len = strnlen(fileName, PATH_MAX); |
2925 | name_len++; /* trailing null */ | |
2926 | strncpy(pSMB->FileName, fileName, name_len); | |
2927 | } | |
2928 | params = 6 + name_len; | |
2929 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
582d21e5 SF |
2930 | /* BB find max SMB size from sess */ |
2931 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1da177e4 LT |
2932 | pSMB->MaxSetupCount = 0; |
2933 | pSMB->Reserved = 0; | |
2934 | pSMB->Flags = 0; | |
2935 | pSMB->Timeout = 0; | |
2936 | pSMB->Reserved2 = 0; | |
2937 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 2938 | InformationLevel) - 4; |
1da177e4 LT |
2939 | offset = param_offset + params; |
2940 | parm_data = ((char *) &pSMB->hdr.Protocol) + offset; | |
2941 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
2942 | ||
2943 | /* convert to on the wire format for POSIX ACL */ | |
50c2f753 | 2944 | data_count = ACL_to_cifs_posix(parm_data, local_acl, buflen, acl_type); |
1da177e4 | 2945 | |
790fe579 | 2946 | if (data_count == 0) { |
1da177e4 LT |
2947 | rc = -EOPNOTSUPP; |
2948 | goto setACLerrorExit; | |
2949 | } | |
2950 | pSMB->DataOffset = cpu_to_le16(offset); | |
2951 | pSMB->SetupCount = 1; | |
2952 | pSMB->Reserved3 = 0; | |
2953 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
2954 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_POSIX_ACL); | |
2955 | byte_count = 3 /* pad */ + params + data_count; | |
2956 | pSMB->DataCount = cpu_to_le16(data_count); | |
2957 | pSMB->TotalDataCount = pSMB->DataCount; | |
2958 | pSMB->ParameterCount = cpu_to_le16(params); | |
2959 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
2960 | pSMB->Reserved4 = 0; | |
2961 | pSMB->hdr.smb_buf_length += byte_count; | |
2962 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2963 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
50c2f753 | 2964 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
ad7a2926 | 2965 | if (rc) |
b6b38f70 | 2966 | cFYI(1, "Set POSIX ACL returned %d", rc); |
1da177e4 LT |
2967 | |
2968 | setACLerrorExit: | |
2969 | cifs_buf_release(pSMB); | |
2970 | if (rc == -EAGAIN) | |
2971 | goto setAclRetry; | |
2972 | return rc; | |
2973 | } | |
2974 | ||
f654bac2 SF |
2975 | /* BB fix tabs in this function FIXME BB */ |
2976 | int | |
2977 | CIFSGetExtAttr(const int xid, struct cifsTconInfo *tcon, | |
ad7a2926 | 2978 | const int netfid, __u64 *pExtAttrBits, __u64 *pMask) |
f654bac2 | 2979 | { |
50c2f753 SF |
2980 | int rc = 0; |
2981 | struct smb_t2_qfi_req *pSMB = NULL; | |
2982 | struct smb_t2_qfi_rsp *pSMBr = NULL; | |
2983 | int bytes_returned; | |
2984 | __u16 params, byte_count; | |
f654bac2 | 2985 | |
b6b38f70 | 2986 | cFYI(1, "In GetExtAttr"); |
790fe579 SF |
2987 | if (tcon == NULL) |
2988 | return -ENODEV; | |
f654bac2 SF |
2989 | |
2990 | GetExtAttrRetry: | |
790fe579 SF |
2991 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
2992 | (void **) &pSMBr); | |
2993 | if (rc) | |
2994 | return rc; | |
f654bac2 | 2995 | |
ad7a2926 | 2996 | params = 2 /* level */ + 2 /* fid */; |
790fe579 SF |
2997 | pSMB->t2.TotalDataCount = 0; |
2998 | pSMB->t2.MaxParameterCount = cpu_to_le16(4); | |
2999 | /* BB find exact max data count below from sess structure BB */ | |
3000 | pSMB->t2.MaxDataCount = cpu_to_le16(4000); | |
3001 | pSMB->t2.MaxSetupCount = 0; | |
3002 | pSMB->t2.Reserved = 0; | |
3003 | pSMB->t2.Flags = 0; | |
3004 | pSMB->t2.Timeout = 0; | |
3005 | pSMB->t2.Reserved2 = 0; | |
3006 | pSMB->t2.ParameterOffset = cpu_to_le16(offsetof(struct smb_t2_qfi_req, | |
3007 | Fid) - 4); | |
3008 | pSMB->t2.DataCount = 0; | |
3009 | pSMB->t2.DataOffset = 0; | |
3010 | pSMB->t2.SetupCount = 1; | |
3011 | pSMB->t2.Reserved3 = 0; | |
3012 | pSMB->t2.SubCommand = cpu_to_le16(TRANS2_QUERY_FILE_INFORMATION); | |
3013 | byte_count = params + 1 /* pad */ ; | |
3014 | pSMB->t2.TotalParameterCount = cpu_to_le16(params); | |
3015 | pSMB->t2.ParameterCount = pSMB->t2.TotalParameterCount; | |
3016 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_ATTR_FLAGS); | |
3017 | pSMB->Pad = 0; | |
f654bac2 | 3018 | pSMB->Fid = netfid; |
790fe579 SF |
3019 | pSMB->hdr.smb_buf_length += byte_count; |
3020 | pSMB->t2.ByteCount = cpu_to_le16(byte_count); | |
3021 | ||
3022 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3023 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3024 | if (rc) { | |
b6b38f70 | 3025 | cFYI(1, "error %d in GetExtAttr", rc); |
790fe579 SF |
3026 | } else { |
3027 | /* decode response */ | |
3028 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3029 | if (rc || (pSMBr->ByteCount < 2)) | |
3030 | /* BB also check enough total bytes returned */ | |
3031 | /* If rc should we check for EOPNOSUPP and | |
3032 | disable the srvino flag? or in caller? */ | |
3033 | rc = -EIO; /* bad smb */ | |
3034 | else { | |
3035 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
3036 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); | |
3037 | struct file_chattr_info *pfinfo; | |
3038 | /* BB Do we need a cast or hash here ? */ | |
3039 | if (count != 16) { | |
b6b38f70 | 3040 | cFYI(1, "Illegal size ret in GetExtAttr"); |
790fe579 SF |
3041 | rc = -EIO; |
3042 | goto GetExtAttrOut; | |
3043 | } | |
3044 | pfinfo = (struct file_chattr_info *) | |
3045 | (data_offset + (char *) &pSMBr->hdr.Protocol); | |
3046 | *pExtAttrBits = le64_to_cpu(pfinfo->mode); | |
f654bac2 | 3047 | *pMask = le64_to_cpu(pfinfo->mask); |
790fe579 SF |
3048 | } |
3049 | } | |
f654bac2 | 3050 | GetExtAttrOut: |
790fe579 SF |
3051 | cifs_buf_release(pSMB); |
3052 | if (rc == -EAGAIN) | |
3053 | goto GetExtAttrRetry; | |
3054 | return rc; | |
f654bac2 SF |
3055 | } |
3056 | ||
f654bac2 | 3057 | #endif /* CONFIG_POSIX */ |
1da177e4 | 3058 | |
297647c2 | 3059 | #ifdef CONFIG_CIFS_EXPERIMENTAL |
0a4b92c0 SF |
3060 | /* Get Security Descriptor (by handle) from remote server for a file or dir */ |
3061 | int | |
3062 | CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid, | |
630f3f0c | 3063 | struct cifs_ntsd **acl_inf, __u32 *pbuflen) |
0a4b92c0 SF |
3064 | { |
3065 | int rc = 0; | |
3066 | int buf_type = 0; | |
ad7a2926 | 3067 | QUERY_SEC_DESC_REQ *pSMB; |
0a4b92c0 SF |
3068 | struct kvec iov[1]; |
3069 | ||
b6b38f70 | 3070 | cFYI(1, "GetCifsACL"); |
0a4b92c0 | 3071 | |
630f3f0c SF |
3072 | *pbuflen = 0; |
3073 | *acl_inf = NULL; | |
3074 | ||
b9c7a2bb | 3075 | rc = smb_init_nttransact(NT_TRANSACT_QUERY_SECURITY_DESC, 0, |
0a4b92c0 SF |
3076 | 8 /* parm len */, tcon, (void **) &pSMB); |
3077 | if (rc) | |
3078 | return rc; | |
3079 | ||
3080 | pSMB->MaxParameterCount = cpu_to_le32(4); | |
3081 | /* BB TEST with big acls that might need to be e.g. larger than 16K */ | |
3082 | pSMB->MaxSetupCount = 0; | |
3083 | pSMB->Fid = fid; /* file handle always le */ | |
3084 | pSMB->AclFlags = cpu_to_le32(CIFS_ACL_OWNER | CIFS_ACL_GROUP | | |
3085 | CIFS_ACL_DACL); | |
3086 | pSMB->ByteCount = cpu_to_le16(11); /* 3 bytes pad + 8 bytes parm */ | |
3087 | pSMB->hdr.smb_buf_length += 11; | |
3088 | iov[0].iov_base = (char *)pSMB; | |
3089 | iov[0].iov_len = pSMB->hdr.smb_buf_length + 4; | |
3090 | ||
a761ac57 | 3091 | rc = SendReceive2(xid, tcon->ses, iov, 1 /* num iovec */, &buf_type, |
133672ef | 3092 | CIFS_STD_OP); |
0a4b92c0 SF |
3093 | cifs_stats_inc(&tcon->num_acl_get); |
3094 | if (rc) { | |
b6b38f70 | 3095 | cFYI(1, "Send error in QuerySecDesc = %d", rc); |
0a4b92c0 | 3096 | } else { /* decode response */ |
ad7a2926 | 3097 | __le32 *parm; |
630f3f0c SF |
3098 | __u32 parm_len; |
3099 | __u32 acl_len; | |
50c2f753 | 3100 | struct smb_com_ntransact_rsp *pSMBr; |
630f3f0c | 3101 | char *pdata; |
0a4b92c0 SF |
3102 | |
3103 | /* validate_nttransact */ | |
50c2f753 | 3104 | rc = validate_ntransact(iov[0].iov_base, (char **)&parm, |
630f3f0c | 3105 | &pdata, &parm_len, pbuflen); |
790fe579 | 3106 | if (rc) |
0a4b92c0 SF |
3107 | goto qsec_out; |
3108 | pSMBr = (struct smb_com_ntransact_rsp *)iov[0].iov_base; | |
3109 | ||
b6b38f70 | 3110 | cFYI(1, "smb %p parm %p data %p", pSMBr, parm, *acl_inf); |
0a4b92c0 SF |
3111 | |
3112 | if (le32_to_cpu(pSMBr->ParameterCount) != 4) { | |
3113 | rc = -EIO; /* bad smb */ | |
630f3f0c | 3114 | *pbuflen = 0; |
0a4b92c0 SF |
3115 | goto qsec_out; |
3116 | } | |
3117 | ||
3118 | /* BB check that data area is minimum length and as big as acl_len */ | |
3119 | ||
af6f4612 | 3120 | acl_len = le32_to_cpu(*parm); |
630f3f0c | 3121 | if (acl_len != *pbuflen) { |
b6b38f70 JP |
3122 | cERROR(1, "acl length %d does not match %d", |
3123 | acl_len, *pbuflen); | |
630f3f0c SF |
3124 | if (*pbuflen > acl_len) |
3125 | *pbuflen = acl_len; | |
3126 | } | |
0a4b92c0 | 3127 | |
630f3f0c SF |
3128 | /* check if buffer is big enough for the acl |
3129 | header followed by the smallest SID */ | |
3130 | if ((*pbuflen < sizeof(struct cifs_ntsd) + 8) || | |
3131 | (*pbuflen >= 64 * 1024)) { | |
b6b38f70 | 3132 | cERROR(1, "bad acl length %d", *pbuflen); |
630f3f0c SF |
3133 | rc = -EINVAL; |
3134 | *pbuflen = 0; | |
3135 | } else { | |
3136 | *acl_inf = kmalloc(*pbuflen, GFP_KERNEL); | |
3137 | if (*acl_inf == NULL) { | |
3138 | *pbuflen = 0; | |
3139 | rc = -ENOMEM; | |
3140 | } | |
3141 | memcpy(*acl_inf, pdata, *pbuflen); | |
3142 | } | |
0a4b92c0 SF |
3143 | } |
3144 | qsec_out: | |
790fe579 | 3145 | if (buf_type == CIFS_SMALL_BUFFER) |
0a4b92c0 | 3146 | cifs_small_buf_release(iov[0].iov_base); |
790fe579 | 3147 | else if (buf_type == CIFS_LARGE_BUFFER) |
0a4b92c0 | 3148 | cifs_buf_release(iov[0].iov_base); |
4b8f930f | 3149 | /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */ |
0a4b92c0 SF |
3150 | return rc; |
3151 | } | |
97837582 SF |
3152 | |
3153 | int | |
3154 | CIFSSMBSetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid, | |
3155 | struct cifs_ntsd *pntsd, __u32 acllen) | |
3156 | { | |
3157 | __u16 byte_count, param_count, data_count, param_offset, data_offset; | |
3158 | int rc = 0; | |
3159 | int bytes_returned = 0; | |
3160 | SET_SEC_DESC_REQ *pSMB = NULL; | |
3161 | NTRANSACT_RSP *pSMBr = NULL; | |
3162 | ||
3163 | setCifsAclRetry: | |
3164 | rc = smb_init(SMB_COM_NT_TRANSACT, 19, tcon, (void **) &pSMB, | |
3165 | (void **) &pSMBr); | |
3166 | if (rc) | |
3167 | return (rc); | |
3168 | ||
3169 | pSMB->MaxSetupCount = 0; | |
3170 | pSMB->Reserved = 0; | |
3171 | ||
3172 | param_count = 8; | |
3173 | param_offset = offsetof(struct smb_com_transaction_ssec_req, Fid) - 4; | |
3174 | data_count = acllen; | |
3175 | data_offset = param_offset + param_count; | |
3176 | byte_count = 3 /* pad */ + param_count; | |
3177 | ||
3178 | pSMB->DataCount = cpu_to_le32(data_count); | |
3179 | pSMB->TotalDataCount = pSMB->DataCount; | |
3180 | pSMB->MaxParameterCount = cpu_to_le32(4); | |
3181 | pSMB->MaxDataCount = cpu_to_le32(16384); | |
3182 | pSMB->ParameterCount = cpu_to_le32(param_count); | |
3183 | pSMB->ParameterOffset = cpu_to_le32(param_offset); | |
3184 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
3185 | pSMB->DataOffset = cpu_to_le32(data_offset); | |
3186 | pSMB->SetupCount = 0; | |
3187 | pSMB->SubCommand = cpu_to_le16(NT_TRANSACT_SET_SECURITY_DESC); | |
3188 | pSMB->ByteCount = cpu_to_le16(byte_count+data_count); | |
3189 | ||
3190 | pSMB->Fid = fid; /* file handle always le */ | |
3191 | pSMB->Reserved2 = 0; | |
3192 | pSMB->AclFlags = cpu_to_le32(CIFS_ACL_DACL); | |
3193 | ||
3194 | if (pntsd && acllen) { | |
3195 | memcpy((char *) &pSMBr->hdr.Protocol + data_offset, | |
3196 | (char *) pntsd, | |
3197 | acllen); | |
3198 | pSMB->hdr.smb_buf_length += (byte_count + data_count); | |
3199 | ||
3200 | } else | |
3201 | pSMB->hdr.smb_buf_length += byte_count; | |
3202 | ||
3203 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3204 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3205 | ||
b6b38f70 | 3206 | cFYI(1, "SetCIFSACL bytes_returned: %d, rc: %d", bytes_returned, rc); |
97837582 | 3207 | if (rc) |
b6b38f70 | 3208 | cFYI(1, "Set CIFS ACL returned %d", rc); |
97837582 SF |
3209 | cifs_buf_release(pSMB); |
3210 | ||
3211 | if (rc == -EAGAIN) | |
3212 | goto setCifsAclRetry; | |
3213 | ||
3214 | return (rc); | |
3215 | } | |
3216 | ||
297647c2 | 3217 | #endif /* CONFIG_CIFS_EXPERIMENTAL */ |
0a4b92c0 | 3218 | |
6b8edfe0 SF |
3219 | /* Legacy Query Path Information call for lookup to old servers such |
3220 | as Win9x/WinME */ | |
3221 | int SMBQueryInformation(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 SF |
3222 | const unsigned char *searchName, |
3223 | FILE_ALL_INFO *pFinfo, | |
3224 | const struct nls_table *nls_codepage, int remap) | |
6b8edfe0 | 3225 | { |
ad7a2926 SF |
3226 | QUERY_INFORMATION_REQ *pSMB; |
3227 | QUERY_INFORMATION_RSP *pSMBr; | |
6b8edfe0 SF |
3228 | int rc = 0; |
3229 | int bytes_returned; | |
3230 | int name_len; | |
3231 | ||
b6b38f70 | 3232 | cFYI(1, "In SMBQPath path %s", searchName); |
6b8edfe0 SF |
3233 | QInfRetry: |
3234 | rc = smb_init(SMB_COM_QUERY_INFORMATION, 0, tcon, (void **) &pSMB, | |
50c2f753 | 3235 | (void **) &pSMBr); |
6b8edfe0 SF |
3236 | if (rc) |
3237 | return rc; | |
3238 | ||
3239 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3240 | name_len = | |
50c2f753 SF |
3241 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
3242 | PATH_MAX, nls_codepage, remap); | |
6b8edfe0 SF |
3243 | name_len++; /* trailing null */ |
3244 | name_len *= 2; | |
50c2f753 | 3245 | } else { |
6b8edfe0 SF |
3246 | name_len = strnlen(searchName, PATH_MAX); |
3247 | name_len++; /* trailing null */ | |
3248 | strncpy(pSMB->FileName, searchName, name_len); | |
3249 | } | |
3250 | pSMB->BufferFormat = 0x04; | |
50c2f753 | 3251 | name_len++; /* account for buffer type byte */ |
6b8edfe0 SF |
3252 | pSMB->hdr.smb_buf_length += (__u16) name_len; |
3253 | pSMB->ByteCount = cpu_to_le16(name_len); | |
3254 | ||
3255 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
50c2f753 | 3256 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
6b8edfe0 | 3257 | if (rc) { |
b6b38f70 | 3258 | cFYI(1, "Send error in QueryInfo = %d", rc); |
ad7a2926 | 3259 | } else if (pFinfo) { |
1bd5bbcb SF |
3260 | struct timespec ts; |
3261 | __u32 time = le32_to_cpu(pSMBr->last_write_time); | |
ad7a2926 SF |
3262 | |
3263 | /* decode response */ | |
1bd5bbcb | 3264 | /* BB FIXME - add time zone adjustment BB */ |
6b8edfe0 | 3265 | memset(pFinfo, 0, sizeof(FILE_ALL_INFO)); |
1bd5bbcb SF |
3266 | ts.tv_nsec = 0; |
3267 | ts.tv_sec = time; | |
3268 | /* decode time fields */ | |
733f99ac | 3269 | pFinfo->ChangeTime = cpu_to_le64(cifs_UnixTimeToNT(ts)); |
1bd5bbcb SF |
3270 | pFinfo->LastWriteTime = pFinfo->ChangeTime; |
3271 | pFinfo->LastAccessTime = 0; | |
70ca734a SF |
3272 | pFinfo->AllocationSize = |
3273 | cpu_to_le64(le32_to_cpu(pSMBr->size)); | |
3274 | pFinfo->EndOfFile = pFinfo->AllocationSize; | |
3275 | pFinfo->Attributes = | |
3276 | cpu_to_le32(le16_to_cpu(pSMBr->attr)); | |
6b8edfe0 SF |
3277 | } else |
3278 | rc = -EIO; /* bad buffer passed in */ | |
3279 | ||
3280 | cifs_buf_release(pSMB); | |
3281 | ||
3282 | if (rc == -EAGAIN) | |
3283 | goto QInfRetry; | |
3284 | ||
3285 | return rc; | |
3286 | } | |
3287 | ||
bcd5357f JL |
3288 | int |
3289 | CIFSSMBQFileInfo(const int xid, struct cifsTconInfo *tcon, | |
3290 | u16 netfid, FILE_ALL_INFO *pFindData) | |
3291 | { | |
3292 | struct smb_t2_qfi_req *pSMB = NULL; | |
3293 | struct smb_t2_qfi_rsp *pSMBr = NULL; | |
3294 | int rc = 0; | |
3295 | int bytes_returned; | |
3296 | __u16 params, byte_count; | |
3297 | ||
3298 | QFileInfoRetry: | |
3299 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3300 | (void **) &pSMBr); | |
3301 | if (rc) | |
3302 | return rc; | |
3303 | ||
3304 | params = 2 /* level */ + 2 /* fid */; | |
3305 | pSMB->t2.TotalDataCount = 0; | |
3306 | pSMB->t2.MaxParameterCount = cpu_to_le16(4); | |
3307 | /* BB find exact max data count below from sess structure BB */ | |
3308 | pSMB->t2.MaxDataCount = cpu_to_le16(CIFSMaxBufSize); | |
3309 | pSMB->t2.MaxSetupCount = 0; | |
3310 | pSMB->t2.Reserved = 0; | |
3311 | pSMB->t2.Flags = 0; | |
3312 | pSMB->t2.Timeout = 0; | |
3313 | pSMB->t2.Reserved2 = 0; | |
3314 | pSMB->t2.ParameterOffset = cpu_to_le16(offsetof(struct smb_t2_qfi_req, | |
3315 | Fid) - 4); | |
3316 | pSMB->t2.DataCount = 0; | |
3317 | pSMB->t2.DataOffset = 0; | |
3318 | pSMB->t2.SetupCount = 1; | |
3319 | pSMB->t2.Reserved3 = 0; | |
3320 | pSMB->t2.SubCommand = cpu_to_le16(TRANS2_QUERY_FILE_INFORMATION); | |
3321 | byte_count = params + 1 /* pad */ ; | |
3322 | pSMB->t2.TotalParameterCount = cpu_to_le16(params); | |
3323 | pSMB->t2.ParameterCount = pSMB->t2.TotalParameterCount; | |
3324 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_ALL_INFO); | |
3325 | pSMB->Pad = 0; | |
3326 | pSMB->Fid = netfid; | |
3327 | pSMB->hdr.smb_buf_length += byte_count; | |
6b8edfe0 | 3328 | |
bcd5357f JL |
3329 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
3330 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3331 | if (rc) { | |
f19159dc | 3332 | cFYI(1, "Send error in QPathInfo = %d", rc); |
bcd5357f JL |
3333 | } else { /* decode response */ |
3334 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
6b8edfe0 | 3335 | |
bcd5357f JL |
3336 | if (rc) /* BB add auto retry on EOPNOTSUPP? */ |
3337 | rc = -EIO; | |
3338 | else if (pSMBr->ByteCount < 40) | |
3339 | rc = -EIO; /* bad smb */ | |
3340 | else if (pFindData) { | |
3341 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
3342 | memcpy((char *) pFindData, | |
3343 | (char *) &pSMBr->hdr.Protocol + | |
3344 | data_offset, sizeof(FILE_ALL_INFO)); | |
3345 | } else | |
3346 | rc = -ENOMEM; | |
3347 | } | |
3348 | cifs_buf_release(pSMB); | |
3349 | if (rc == -EAGAIN) | |
3350 | goto QFileInfoRetry; | |
6b8edfe0 | 3351 | |
bcd5357f JL |
3352 | return rc; |
3353 | } | |
6b8edfe0 | 3354 | |
1da177e4 LT |
3355 | int |
3356 | CIFSSMBQPathInfo(const int xid, struct cifsTconInfo *tcon, | |
3357 | const unsigned char *searchName, | |
ad7a2926 | 3358 | FILE_ALL_INFO *pFindData, |
acf1a1b1 | 3359 | int legacy /* old style infolevel */, |
737b758c | 3360 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
3361 | { |
3362 | /* level 263 SMB_QUERY_FILE_ALL_INFO */ | |
3363 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
3364 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
3365 | int rc = 0; | |
3366 | int bytes_returned; | |
3367 | int name_len; | |
3368 | __u16 params, byte_count; | |
3369 | ||
b6b38f70 | 3370 | /* cFYI(1, "In QPathInfo path %s", searchName); */ |
1da177e4 LT |
3371 | QPathInfoRetry: |
3372 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3373 | (void **) &pSMBr); | |
3374 | if (rc) | |
3375 | return rc; | |
3376 | ||
3377 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3378 | name_len = | |
50c2f753 | 3379 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 3380 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
3381 | name_len++; /* trailing null */ |
3382 | name_len *= 2; | |
50c2f753 | 3383 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
3384 | name_len = strnlen(searchName, PATH_MAX); |
3385 | name_len++; /* trailing null */ | |
3386 | strncpy(pSMB->FileName, searchName, name_len); | |
3387 | } | |
3388 | ||
50c2f753 | 3389 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */; |
1da177e4 LT |
3390 | pSMB->TotalDataCount = 0; |
3391 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
582d21e5 SF |
3392 | /* BB find exact max SMB PDU from sess structure BB */ |
3393 | pSMB->MaxDataCount = cpu_to_le16(4000); | |
1da177e4 LT |
3394 | pSMB->MaxSetupCount = 0; |
3395 | pSMB->Reserved = 0; | |
3396 | pSMB->Flags = 0; | |
3397 | pSMB->Timeout = 0; | |
3398 | pSMB->Reserved2 = 0; | |
3399 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 3400 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
1da177e4 LT |
3401 | pSMB->DataCount = 0; |
3402 | pSMB->DataOffset = 0; | |
3403 | pSMB->SetupCount = 1; | |
3404 | pSMB->Reserved3 = 0; | |
3405 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
3406 | byte_count = params + 1 /* pad */ ; | |
3407 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3408 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
790fe579 | 3409 | if (legacy) |
acf1a1b1 SF |
3410 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_STANDARD); |
3411 | else | |
3412 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_ALL_INFO); | |
1da177e4 LT |
3413 | pSMB->Reserved4 = 0; |
3414 | pSMB->hdr.smb_buf_length += byte_count; | |
3415 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3416 | ||
3417 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3418 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3419 | if (rc) { | |
b6b38f70 | 3420 | cFYI(1, "Send error in QPathInfo = %d", rc); |
1da177e4 LT |
3421 | } else { /* decode response */ |
3422 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3423 | ||
acf1a1b1 SF |
3424 | if (rc) /* BB add auto retry on EOPNOTSUPP? */ |
3425 | rc = -EIO; | |
50c2f753 | 3426 | else if (!legacy && (pSMBr->ByteCount < 40)) |
1da177e4 | 3427 | rc = -EIO; /* bad smb */ |
790fe579 | 3428 | else if (legacy && (pSMBr->ByteCount < 24)) |
50c2f753 SF |
3429 | rc = -EIO; /* 24 or 26 expected but we do not read |
3430 | last field */ | |
3431 | else if (pFindData) { | |
acf1a1b1 | 3432 | int size; |
1da177e4 | 3433 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
ad7a2926 SF |
3434 | |
3435 | /* On legacy responses we do not read the last field, | |
3436 | EAsize, fortunately since it varies by subdialect and | |
3437 | also note it differs on Set vs. Get, ie two bytes or 4 | |
3438 | bytes depending but we don't care here */ | |
3439 | if (legacy) | |
acf1a1b1 SF |
3440 | size = sizeof(FILE_INFO_STANDARD); |
3441 | else | |
3442 | size = sizeof(FILE_ALL_INFO); | |
1da177e4 LT |
3443 | memcpy((char *) pFindData, |
3444 | (char *) &pSMBr->hdr.Protocol + | |
acf1a1b1 | 3445 | data_offset, size); |
1da177e4 LT |
3446 | } else |
3447 | rc = -ENOMEM; | |
3448 | } | |
3449 | cifs_buf_release(pSMB); | |
3450 | if (rc == -EAGAIN) | |
3451 | goto QPathInfoRetry; | |
3452 | ||
3453 | return rc; | |
3454 | } | |
3455 | ||
c8634fd3 JL |
3456 | int |
3457 | CIFSSMBUnixQFileInfo(const int xid, struct cifsTconInfo *tcon, | |
3458 | u16 netfid, FILE_UNIX_BASIC_INFO *pFindData) | |
3459 | { | |
3460 | struct smb_t2_qfi_req *pSMB = NULL; | |
3461 | struct smb_t2_qfi_rsp *pSMBr = NULL; | |
3462 | int rc = 0; | |
3463 | int bytes_returned; | |
3464 | __u16 params, byte_count; | |
3465 | ||
3466 | UnixQFileInfoRetry: | |
3467 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3468 | (void **) &pSMBr); | |
3469 | if (rc) | |
3470 | return rc; | |
3471 | ||
3472 | params = 2 /* level */ + 2 /* fid */; | |
3473 | pSMB->t2.TotalDataCount = 0; | |
3474 | pSMB->t2.MaxParameterCount = cpu_to_le16(4); | |
3475 | /* BB find exact max data count below from sess structure BB */ | |
3476 | pSMB->t2.MaxDataCount = cpu_to_le16(CIFSMaxBufSize); | |
3477 | pSMB->t2.MaxSetupCount = 0; | |
3478 | pSMB->t2.Reserved = 0; | |
3479 | pSMB->t2.Flags = 0; | |
3480 | pSMB->t2.Timeout = 0; | |
3481 | pSMB->t2.Reserved2 = 0; | |
3482 | pSMB->t2.ParameterOffset = cpu_to_le16(offsetof(struct smb_t2_qfi_req, | |
3483 | Fid) - 4); | |
3484 | pSMB->t2.DataCount = 0; | |
3485 | pSMB->t2.DataOffset = 0; | |
3486 | pSMB->t2.SetupCount = 1; | |
3487 | pSMB->t2.Reserved3 = 0; | |
3488 | pSMB->t2.SubCommand = cpu_to_le16(TRANS2_QUERY_FILE_INFORMATION); | |
3489 | byte_count = params + 1 /* pad */ ; | |
3490 | pSMB->t2.TotalParameterCount = cpu_to_le16(params); | |
3491 | pSMB->t2.ParameterCount = pSMB->t2.TotalParameterCount; | |
3492 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_UNIX_BASIC); | |
3493 | pSMB->Pad = 0; | |
3494 | pSMB->Fid = netfid; | |
3495 | pSMB->hdr.smb_buf_length += byte_count; | |
3496 | ||
3497 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3498 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3499 | if (rc) { | |
f19159dc | 3500 | cFYI(1, "Send error in QPathInfo = %d", rc); |
c8634fd3 JL |
3501 | } else { /* decode response */ |
3502 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3503 | ||
3504 | if (rc || (pSMBr->ByteCount < sizeof(FILE_UNIX_BASIC_INFO))) { | |
f19159dc | 3505 | cERROR(1, "Malformed FILE_UNIX_BASIC_INFO response.\n" |
c8634fd3 | 3506 | "Unix Extensions can be disabled on mount " |
f19159dc | 3507 | "by specifying the nosfu mount option."); |
c8634fd3 JL |
3508 | rc = -EIO; /* bad smb */ |
3509 | } else { | |
3510 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
3511 | memcpy((char *) pFindData, | |
3512 | (char *) &pSMBr->hdr.Protocol + | |
3513 | data_offset, | |
3514 | sizeof(FILE_UNIX_BASIC_INFO)); | |
3515 | } | |
3516 | } | |
3517 | ||
3518 | cifs_buf_release(pSMB); | |
3519 | if (rc == -EAGAIN) | |
3520 | goto UnixQFileInfoRetry; | |
3521 | ||
3522 | return rc; | |
3523 | } | |
3524 | ||
1da177e4 LT |
3525 | int |
3526 | CIFSSMBUnixQPathInfo(const int xid, struct cifsTconInfo *tcon, | |
3527 | const unsigned char *searchName, | |
582d21e5 | 3528 | FILE_UNIX_BASIC_INFO *pFindData, |
737b758c | 3529 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
3530 | { |
3531 | /* SMB_QUERY_FILE_UNIX_BASIC */ | |
3532 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
3533 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
3534 | int rc = 0; | |
3535 | int bytes_returned = 0; | |
3536 | int name_len; | |
3537 | __u16 params, byte_count; | |
3538 | ||
b6b38f70 | 3539 | cFYI(1, "In QPathInfo (Unix) the path %s", searchName); |
1da177e4 LT |
3540 | UnixQPathInfoRetry: |
3541 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3542 | (void **) &pSMBr); | |
3543 | if (rc) | |
3544 | return rc; | |
3545 | ||
3546 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3547 | name_len = | |
b1a45695 | 3548 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 3549 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
3550 | name_len++; /* trailing null */ |
3551 | name_len *= 2; | |
50c2f753 | 3552 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
3553 | name_len = strnlen(searchName, PATH_MAX); |
3554 | name_len++; /* trailing null */ | |
3555 | strncpy(pSMB->FileName, searchName, name_len); | |
3556 | } | |
3557 | ||
50c2f753 | 3558 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */; |
1da177e4 LT |
3559 | pSMB->TotalDataCount = 0; |
3560 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3561 | /* BB find exact max SMB PDU from sess structure BB */ | |
50c2f753 | 3562 | pSMB->MaxDataCount = cpu_to_le16(4000); |
1da177e4 LT |
3563 | pSMB->MaxSetupCount = 0; |
3564 | pSMB->Reserved = 0; | |
3565 | pSMB->Flags = 0; | |
3566 | pSMB->Timeout = 0; | |
3567 | pSMB->Reserved2 = 0; | |
3568 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 3569 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
1da177e4 LT |
3570 | pSMB->DataCount = 0; |
3571 | pSMB->DataOffset = 0; | |
3572 | pSMB->SetupCount = 1; | |
3573 | pSMB->Reserved3 = 0; | |
3574 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
3575 | byte_count = params + 1 /* pad */ ; | |
3576 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3577 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3578 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_UNIX_BASIC); | |
3579 | pSMB->Reserved4 = 0; | |
3580 | pSMB->hdr.smb_buf_length += byte_count; | |
3581 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3582 | ||
3583 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3584 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3585 | if (rc) { | |
b6b38f70 | 3586 | cFYI(1, "Send error in QPathInfo = %d", rc); |
1da177e4 LT |
3587 | } else { /* decode response */ |
3588 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3589 | ||
3590 | if (rc || (pSMBr->ByteCount < sizeof(FILE_UNIX_BASIC_INFO))) { | |
b6b38f70 | 3591 | cERROR(1, "Malformed FILE_UNIX_BASIC_INFO response.\n" |
1e71f25d | 3592 | "Unix Extensions can be disabled on mount " |
b6b38f70 | 3593 | "by specifying the nosfu mount option."); |
1da177e4 LT |
3594 | rc = -EIO; /* bad smb */ |
3595 | } else { | |
3596 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
3597 | memcpy((char *) pFindData, | |
3598 | (char *) &pSMBr->hdr.Protocol + | |
3599 | data_offset, | |
630f3f0c | 3600 | sizeof(FILE_UNIX_BASIC_INFO)); |
1da177e4 LT |
3601 | } |
3602 | } | |
3603 | cifs_buf_release(pSMB); | |
3604 | if (rc == -EAGAIN) | |
3605 | goto UnixQPathInfoRetry; | |
3606 | ||
3607 | return rc; | |
3608 | } | |
3609 | ||
1da177e4 LT |
3610 | /* xid, tcon, searchName and codepage are input parms, rest are returned */ |
3611 | int | |
3612 | CIFSFindFirst(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 | 3613 | const char *searchName, |
1da177e4 | 3614 | const struct nls_table *nls_codepage, |
50c2f753 SF |
3615 | __u16 *pnetfid, |
3616 | struct cifs_search_info *psrch_inf, int remap, const char dirsep) | |
1da177e4 LT |
3617 | { |
3618 | /* level 257 SMB_ */ | |
3619 | TRANSACTION2_FFIRST_REQ *pSMB = NULL; | |
3620 | TRANSACTION2_FFIRST_RSP *pSMBr = NULL; | |
ad7a2926 | 3621 | T2_FFIRST_RSP_PARMS *parms; |
1da177e4 LT |
3622 | int rc = 0; |
3623 | int bytes_returned = 0; | |
3624 | int name_len; | |
3625 | __u16 params, byte_count; | |
3626 | ||
b6b38f70 | 3627 | cFYI(1, "In FindFirst for %s", searchName); |
1da177e4 LT |
3628 | |
3629 | findFirstRetry: | |
3630 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3631 | (void **) &pSMBr); | |
3632 | if (rc) | |
3633 | return rc; | |
3634 | ||
3635 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3636 | name_len = | |
50c2f753 | 3637 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c SF |
3638 | PATH_MAX, nls_codepage, remap); |
3639 | /* We can not add the asterik earlier in case | |
3640 | it got remapped to 0xF03A as if it were part of the | |
3641 | directory name instead of a wildcard */ | |
1da177e4 | 3642 | name_len *= 2; |
ac67055e | 3643 | pSMB->FileName[name_len] = dirsep; |
737b758c SF |
3644 | pSMB->FileName[name_len+1] = 0; |
3645 | pSMB->FileName[name_len+2] = '*'; | |
3646 | pSMB->FileName[name_len+3] = 0; | |
3647 | name_len += 4; /* now the trailing null */ | |
1da177e4 LT |
3648 | pSMB->FileName[name_len] = 0; /* null terminate just in case */ |
3649 | pSMB->FileName[name_len+1] = 0; | |
737b758c | 3650 | name_len += 2; |
1da177e4 LT |
3651 | } else { /* BB add check for overrun of SMB buf BB */ |
3652 | name_len = strnlen(searchName, PATH_MAX); | |
1da177e4 | 3653 | /* BB fix here and in unicode clause above ie |
790fe579 | 3654 | if (name_len > buffersize-header) |
1da177e4 LT |
3655 | free buffer exit; BB */ |
3656 | strncpy(pSMB->FileName, searchName, name_len); | |
ac67055e | 3657 | pSMB->FileName[name_len] = dirsep; |
68575476 SF |
3658 | pSMB->FileName[name_len+1] = '*'; |
3659 | pSMB->FileName[name_len+2] = 0; | |
3660 | name_len += 3; | |
1da177e4 LT |
3661 | } |
3662 | ||
3663 | params = 12 + name_len /* includes null */ ; | |
3664 | pSMB->TotalDataCount = 0; /* no EAs */ | |
3665 | pSMB->MaxParameterCount = cpu_to_le16(10); | |
3666 | pSMB->MaxDataCount = cpu_to_le16((tcon->ses->server->maxBuf - | |
3667 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
3668 | pSMB->MaxSetupCount = 0; | |
3669 | pSMB->Reserved = 0; | |
3670 | pSMB->Flags = 0; | |
3671 | pSMB->Timeout = 0; | |
3672 | pSMB->Reserved2 = 0; | |
3673 | byte_count = params + 1 /* pad */ ; | |
3674 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3675 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3676 | pSMB->ParameterOffset = cpu_to_le16( | |
88274815 SF |
3677 | offsetof(struct smb_com_transaction2_ffirst_req, SearchAttributes) |
3678 | - 4); | |
1da177e4 LT |
3679 | pSMB->DataCount = 0; |
3680 | pSMB->DataOffset = 0; | |
3681 | pSMB->SetupCount = 1; /* one byte, no need to make endian neutral */ | |
3682 | pSMB->Reserved3 = 0; | |
3683 | pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_FIRST); | |
3684 | pSMB->SearchAttributes = | |
3685 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | | |
3686 | ATTR_DIRECTORY); | |
50c2f753 SF |
3687 | pSMB->SearchCount = cpu_to_le16(CIFSMaxBufSize/sizeof(FILE_UNIX_INFO)); |
3688 | pSMB->SearchFlags = cpu_to_le16(CIFS_SEARCH_CLOSE_AT_END | | |
1da177e4 LT |
3689 | CIFS_SEARCH_RETURN_RESUME); |
3690 | pSMB->InformationLevel = cpu_to_le16(psrch_inf->info_level); | |
3691 | ||
3692 | /* BB what should we set StorageType to? Does it matter? BB */ | |
3693 | pSMB->SearchStorageType = 0; | |
3694 | pSMB->hdr.smb_buf_length += byte_count; | |
3695 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3696 | ||
3697 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3698 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 3699 | cifs_stats_inc(&tcon->num_ffirst); |
1da177e4 | 3700 | |
88274815 SF |
3701 | if (rc) {/* BB add logic to retry regular search if Unix search |
3702 | rejected unexpectedly by server */ | |
1da177e4 | 3703 | /* BB Add code to handle unsupported level rc */ |
b6b38f70 | 3704 | cFYI(1, "Error in FindFirst = %d", rc); |
1982c344 | 3705 | |
88274815 | 3706 | cifs_buf_release(pSMB); |
1da177e4 LT |
3707 | |
3708 | /* BB eventually could optimize out free and realloc of buf */ | |
3709 | /* for this case */ | |
3710 | if (rc == -EAGAIN) | |
3711 | goto findFirstRetry; | |
3712 | } else { /* decode response */ | |
3713 | /* BB remember to free buffer if error BB */ | |
3714 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
790fe579 | 3715 | if (rc == 0) { |
b77d753c SF |
3716 | unsigned int lnoff; |
3717 | ||
1da177e4 | 3718 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) |
4b18f2a9 | 3719 | psrch_inf->unicode = true; |
1da177e4 | 3720 | else |
4b18f2a9 | 3721 | psrch_inf->unicode = false; |
1da177e4 LT |
3722 | |
3723 | psrch_inf->ntwrk_buf_start = (char *)pSMBr; | |
d47d7c1a | 3724 | psrch_inf->smallBuf = 0; |
50c2f753 SF |
3725 | psrch_inf->srch_entries_start = |
3726 | (char *) &pSMBr->hdr.Protocol + | |
1da177e4 | 3727 | le16_to_cpu(pSMBr->t2.DataOffset); |
1da177e4 LT |
3728 | parms = (T2_FFIRST_RSP_PARMS *)((char *) &pSMBr->hdr.Protocol + |
3729 | le16_to_cpu(pSMBr->t2.ParameterOffset)); | |
3730 | ||
790fe579 | 3731 | if (parms->EndofSearch) |
4b18f2a9 | 3732 | psrch_inf->endOfSearch = true; |
1da177e4 | 3733 | else |
4b18f2a9 | 3734 | psrch_inf->endOfSearch = false; |
1da177e4 | 3735 | |
50c2f753 SF |
3736 | psrch_inf->entries_in_buffer = |
3737 | le16_to_cpu(parms->SearchCount); | |
60808233 | 3738 | psrch_inf->index_of_last_entry = 2 /* skip . and .. */ + |
1da177e4 | 3739 | psrch_inf->entries_in_buffer; |
b77d753c SF |
3740 | lnoff = le16_to_cpu(parms->LastNameOffset); |
3741 | if (tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE < | |
3742 | lnoff) { | |
b6b38f70 | 3743 | cERROR(1, "ignoring corrupt resume name"); |
b77d753c SF |
3744 | psrch_inf->last_entry = NULL; |
3745 | return rc; | |
3746 | } | |
3747 | ||
0752f152 | 3748 | psrch_inf->last_entry = psrch_inf->srch_entries_start + |
b77d753c SF |
3749 | lnoff; |
3750 | ||
1da177e4 LT |
3751 | *pnetfid = parms->SearchHandle; |
3752 | } else { | |
3753 | cifs_buf_release(pSMB); | |
3754 | } | |
3755 | } | |
3756 | ||
3757 | return rc; | |
3758 | } | |
3759 | ||
3760 | int CIFSFindNext(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 | 3761 | __u16 searchHandle, struct cifs_search_info *psrch_inf) |
1da177e4 LT |
3762 | { |
3763 | TRANSACTION2_FNEXT_REQ *pSMB = NULL; | |
3764 | TRANSACTION2_FNEXT_RSP *pSMBr = NULL; | |
ad7a2926 | 3765 | T2_FNEXT_RSP_PARMS *parms; |
1da177e4 LT |
3766 | char *response_data; |
3767 | int rc = 0; | |
3768 | int bytes_returned, name_len; | |
3769 | __u16 params, byte_count; | |
3770 | ||
b6b38f70 | 3771 | cFYI(1, "In FindNext"); |
1da177e4 | 3772 | |
4b18f2a9 | 3773 | if (psrch_inf->endOfSearch) |
1da177e4 LT |
3774 | return -ENOENT; |
3775 | ||
3776 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3777 | (void **) &pSMBr); | |
3778 | if (rc) | |
3779 | return rc; | |
3780 | ||
50c2f753 | 3781 | params = 14; /* includes 2 bytes of null string, converted to LE below*/ |
1da177e4 LT |
3782 | byte_count = 0; |
3783 | pSMB->TotalDataCount = 0; /* no EAs */ | |
3784 | pSMB->MaxParameterCount = cpu_to_le16(8); | |
3785 | pSMB->MaxDataCount = | |
50c2f753 SF |
3786 | cpu_to_le16((tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) & |
3787 | 0xFFFFFF00); | |
1da177e4 LT |
3788 | pSMB->MaxSetupCount = 0; |
3789 | pSMB->Reserved = 0; | |
3790 | pSMB->Flags = 0; | |
3791 | pSMB->Timeout = 0; | |
3792 | pSMB->Reserved2 = 0; | |
3793 | pSMB->ParameterOffset = cpu_to_le16( | |
3794 | offsetof(struct smb_com_transaction2_fnext_req,SearchHandle) - 4); | |
3795 | pSMB->DataCount = 0; | |
3796 | pSMB->DataOffset = 0; | |
3797 | pSMB->SetupCount = 1; | |
3798 | pSMB->Reserved3 = 0; | |
3799 | pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_NEXT); | |
3800 | pSMB->SearchHandle = searchHandle; /* always kept as le */ | |
3801 | pSMB->SearchCount = | |
630f3f0c | 3802 | cpu_to_le16(CIFSMaxBufSize / sizeof(FILE_UNIX_INFO)); |
1da177e4 LT |
3803 | pSMB->InformationLevel = cpu_to_le16(psrch_inf->info_level); |
3804 | pSMB->ResumeKey = psrch_inf->resume_key; | |
3805 | pSMB->SearchFlags = | |
3806 | cpu_to_le16(CIFS_SEARCH_CLOSE_AT_END | CIFS_SEARCH_RETURN_RESUME); | |
3807 | ||
3808 | name_len = psrch_inf->resume_name_len; | |
3809 | params += name_len; | |
790fe579 | 3810 | if (name_len < PATH_MAX) { |
1da177e4 LT |
3811 | memcpy(pSMB->ResumeFileName, psrch_inf->presume_name, name_len); |
3812 | byte_count += name_len; | |
ef6724e3 SF |
3813 | /* 14 byte parm len above enough for 2 byte null terminator */ |
3814 | pSMB->ResumeFileName[name_len] = 0; | |
3815 | pSMB->ResumeFileName[name_len+1] = 0; | |
1da177e4 LT |
3816 | } else { |
3817 | rc = -EINVAL; | |
3818 | goto FNext2_err_exit; | |
3819 | } | |
3820 | byte_count = params + 1 /* pad */ ; | |
3821 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3822 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3823 | pSMB->hdr.smb_buf_length += byte_count; | |
3824 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
50c2f753 | 3825 | |
1da177e4 LT |
3826 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
3827 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 3828 | cifs_stats_inc(&tcon->num_fnext); |
1da177e4 LT |
3829 | if (rc) { |
3830 | if (rc == -EBADF) { | |
4b18f2a9 | 3831 | psrch_inf->endOfSearch = true; |
6353450a | 3832 | cifs_buf_release(pSMB); |
50c2f753 | 3833 | rc = 0; /* search probably was closed at end of search*/ |
1da177e4 | 3834 | } else |
b6b38f70 | 3835 | cFYI(1, "FindNext returned = %d", rc); |
1da177e4 LT |
3836 | } else { /* decode response */ |
3837 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
50c2f753 | 3838 | |
790fe579 | 3839 | if (rc == 0) { |
b77d753c SF |
3840 | unsigned int lnoff; |
3841 | ||
1da177e4 LT |
3842 | /* BB fixme add lock for file (srch_info) struct here */ |
3843 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) | |
4b18f2a9 | 3844 | psrch_inf->unicode = true; |
1da177e4 | 3845 | else |
4b18f2a9 | 3846 | psrch_inf->unicode = false; |
1da177e4 LT |
3847 | response_data = (char *) &pSMBr->hdr.Protocol + |
3848 | le16_to_cpu(pSMBr->t2.ParameterOffset); | |
3849 | parms = (T2_FNEXT_RSP_PARMS *)response_data; | |
3850 | response_data = (char *)&pSMBr->hdr.Protocol + | |
3851 | le16_to_cpu(pSMBr->t2.DataOffset); | |
790fe579 | 3852 | if (psrch_inf->smallBuf) |
d47d7c1a SF |
3853 | cifs_small_buf_release( |
3854 | psrch_inf->ntwrk_buf_start); | |
3855 | else | |
3856 | cifs_buf_release(psrch_inf->ntwrk_buf_start); | |
1da177e4 LT |
3857 | psrch_inf->srch_entries_start = response_data; |
3858 | psrch_inf->ntwrk_buf_start = (char *)pSMB; | |
d47d7c1a | 3859 | psrch_inf->smallBuf = 0; |
790fe579 | 3860 | if (parms->EndofSearch) |
4b18f2a9 | 3861 | psrch_inf->endOfSearch = true; |
1da177e4 | 3862 | else |
4b18f2a9 | 3863 | psrch_inf->endOfSearch = false; |
50c2f753 SF |
3864 | psrch_inf->entries_in_buffer = |
3865 | le16_to_cpu(parms->SearchCount); | |
1da177e4 LT |
3866 | psrch_inf->index_of_last_entry += |
3867 | psrch_inf->entries_in_buffer; | |
b77d753c SF |
3868 | lnoff = le16_to_cpu(parms->LastNameOffset); |
3869 | if (tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE < | |
3870 | lnoff) { | |
b6b38f70 | 3871 | cERROR(1, "ignoring corrupt resume name"); |
b77d753c SF |
3872 | psrch_inf->last_entry = NULL; |
3873 | return rc; | |
3874 | } else | |
3875 | psrch_inf->last_entry = | |
3876 | psrch_inf->srch_entries_start + lnoff; | |
3877 | ||
b6b38f70 JP |
3878 | /* cFYI(1, "fnxt2 entries in buf %d index_of_last %d", |
3879 | psrch_inf->entries_in_buffer, psrch_inf->index_of_last_entry); */ | |
1da177e4 LT |
3880 | |
3881 | /* BB fixme add unlock here */ | |
3882 | } | |
3883 | ||
3884 | } | |
3885 | ||
3886 | /* BB On error, should we leave previous search buf (and count and | |
3887 | last entry fields) intact or free the previous one? */ | |
3888 | ||
3889 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
3890 | since file handle passed in no longer valid */ | |
3891 | FNext2_err_exit: | |
3892 | if (rc != 0) | |
3893 | cifs_buf_release(pSMB); | |
1da177e4 LT |
3894 | return rc; |
3895 | } | |
3896 | ||
3897 | int | |
50c2f753 SF |
3898 | CIFSFindClose(const int xid, struct cifsTconInfo *tcon, |
3899 | const __u16 searchHandle) | |
1da177e4 LT |
3900 | { |
3901 | int rc = 0; | |
3902 | FINDCLOSE_REQ *pSMB = NULL; | |
1da177e4 | 3903 | |
b6b38f70 | 3904 | cFYI(1, "In CIFSSMBFindClose"); |
1da177e4 LT |
3905 | rc = small_smb_init(SMB_COM_FIND_CLOSE2, 1, tcon, (void **)&pSMB); |
3906 | ||
3907 | /* no sense returning error if session restarted | |
3908 | as file handle has been closed */ | |
790fe579 | 3909 | if (rc == -EAGAIN) |
1da177e4 LT |
3910 | return 0; |
3911 | if (rc) | |
3912 | return rc; | |
3913 | ||
1da177e4 LT |
3914 | pSMB->FileID = searchHandle; |
3915 | pSMB->ByteCount = 0; | |
133672ef | 3916 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); |
ad7a2926 | 3917 | if (rc) |
b6b38f70 | 3918 | cERROR(1, "Send error in FindClose = %d", rc); |
ad7a2926 | 3919 | |
a4544347 | 3920 | cifs_stats_inc(&tcon->num_fclose); |
1da177e4 LT |
3921 | |
3922 | /* Since session is dead, search handle closed on server already */ | |
3923 | if (rc == -EAGAIN) | |
3924 | rc = 0; | |
3925 | ||
3926 | return rc; | |
3927 | } | |
3928 | ||
1da177e4 LT |
3929 | int |
3930 | CIFSGetSrvInodeNumber(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 | 3931 | const unsigned char *searchName, |
ad7a2926 | 3932 | __u64 *inode_number, |
50c2f753 | 3933 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
3934 | { |
3935 | int rc = 0; | |
3936 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
3937 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
3938 | int name_len, bytes_returned; | |
3939 | __u16 params, byte_count; | |
3940 | ||
b6b38f70 | 3941 | cFYI(1, "In GetSrvInodeNum for %s", searchName); |
790fe579 | 3942 | if (tcon == NULL) |
50c2f753 | 3943 | return -ENODEV; |
1da177e4 LT |
3944 | |
3945 | GetInodeNumberRetry: | |
3946 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
50c2f753 | 3947 | (void **) &pSMBr); |
1da177e4 LT |
3948 | if (rc) |
3949 | return rc; | |
3950 | ||
1da177e4 LT |
3951 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
3952 | name_len = | |
b1a45695 | 3953 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
50c2f753 | 3954 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
3955 | name_len++; /* trailing null */ |
3956 | name_len *= 2; | |
50c2f753 | 3957 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
3958 | name_len = strnlen(searchName, PATH_MAX); |
3959 | name_len++; /* trailing null */ | |
3960 | strncpy(pSMB->FileName, searchName, name_len); | |
3961 | } | |
3962 | ||
3963 | params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ; | |
3964 | pSMB->TotalDataCount = 0; | |
3965 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3966 | /* BB find exact max data count below from sess structure BB */ | |
3967 | pSMB->MaxDataCount = cpu_to_le16(4000); | |
3968 | pSMB->MaxSetupCount = 0; | |
3969 | pSMB->Reserved = 0; | |
3970 | pSMB->Flags = 0; | |
3971 | pSMB->Timeout = 0; | |
3972 | pSMB->Reserved2 = 0; | |
3973 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 3974 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
1da177e4 LT |
3975 | pSMB->DataCount = 0; |
3976 | pSMB->DataOffset = 0; | |
3977 | pSMB->SetupCount = 1; | |
3978 | pSMB->Reserved3 = 0; | |
3979 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
3980 | byte_count = params + 1 /* pad */ ; | |
3981 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3982 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3983 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_INTERNAL_INFO); | |
3984 | pSMB->Reserved4 = 0; | |
3985 | pSMB->hdr.smb_buf_length += byte_count; | |
3986 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3987 | ||
3988 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3989 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3990 | if (rc) { | |
b6b38f70 | 3991 | cFYI(1, "error %d in QueryInternalInfo", rc); |
1da177e4 LT |
3992 | } else { |
3993 | /* decode response */ | |
3994 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3995 | if (rc || (pSMBr->ByteCount < 2)) | |
3996 | /* BB also check enough total bytes returned */ | |
3997 | /* If rc should we check for EOPNOSUPP and | |
3998 | disable the srvino flag? or in caller? */ | |
3999 | rc = -EIO; /* bad smb */ | |
50c2f753 | 4000 | else { |
1da177e4 LT |
4001 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
4002 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); | |
50c2f753 | 4003 | struct file_internal_info *pfinfo; |
1da177e4 | 4004 | /* BB Do we need a cast or hash here ? */ |
790fe579 | 4005 | if (count < 8) { |
b6b38f70 | 4006 | cFYI(1, "Illegal size ret in QryIntrnlInf"); |
1da177e4 LT |
4007 | rc = -EIO; |
4008 | goto GetInodeNumOut; | |
4009 | } | |
4010 | pfinfo = (struct file_internal_info *) | |
4011 | (data_offset + (char *) &pSMBr->hdr.Protocol); | |
85a6dac5 | 4012 | *inode_number = le64_to_cpu(pfinfo->UniqueId); |
1da177e4 LT |
4013 | } |
4014 | } | |
4015 | GetInodeNumOut: | |
4016 | cifs_buf_release(pSMB); | |
4017 | if (rc == -EAGAIN) | |
4018 | goto GetInodeNumberRetry; | |
4019 | return rc; | |
4020 | } | |
1da177e4 | 4021 | |
fec4585f IM |
4022 | /* parses DFS refferal V3 structure |
4023 | * caller is responsible for freeing target_nodes | |
4024 | * returns: | |
4025 | * on success - 0 | |
4026 | * on failure - errno | |
4027 | */ | |
4028 | static int | |
a1fe78f1 | 4029 | parse_DFS_referrals(TRANSACTION2_GET_DFS_REFER_RSP *pSMBr, |
fec4585f IM |
4030 | unsigned int *num_of_nodes, |
4031 | struct dfs_info3_param **target_nodes, | |
2c55608f IM |
4032 | const struct nls_table *nls_codepage, int remap, |
4033 | const char *searchName) | |
fec4585f IM |
4034 | { |
4035 | int i, rc = 0; | |
4036 | char *data_end; | |
4037 | bool is_unicode; | |
4038 | struct dfs_referral_level_3 *ref; | |
4039 | ||
5ca33c6a HH |
4040 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) |
4041 | is_unicode = true; | |
4042 | else | |
4043 | is_unicode = false; | |
fec4585f IM |
4044 | *num_of_nodes = le16_to_cpu(pSMBr->NumberOfReferrals); |
4045 | ||
4046 | if (*num_of_nodes < 1) { | |
b6b38f70 JP |
4047 | cERROR(1, "num_referrals: must be at least > 0," |
4048 | "but we get num_referrals = %d\n", *num_of_nodes); | |
fec4585f | 4049 | rc = -EINVAL; |
a1fe78f1 | 4050 | goto parse_DFS_referrals_exit; |
fec4585f IM |
4051 | } |
4052 | ||
4053 | ref = (struct dfs_referral_level_3 *) &(pSMBr->referrals); | |
1d92cfd5 | 4054 | if (ref->VersionNumber != cpu_to_le16(3)) { |
b6b38f70 JP |
4055 | cERROR(1, "Referrals of V%d version are not supported," |
4056 | "should be V3", le16_to_cpu(ref->VersionNumber)); | |
fec4585f | 4057 | rc = -EINVAL; |
a1fe78f1 | 4058 | goto parse_DFS_referrals_exit; |
fec4585f IM |
4059 | } |
4060 | ||
4061 | /* get the upper boundary of the resp buffer */ | |
4062 | data_end = (char *)(&(pSMBr->PathConsumed)) + | |
4063 | le16_to_cpu(pSMBr->t2.DataCount); | |
4064 | ||
f19159dc | 4065 | cFYI(1, "num_referrals: %d dfs flags: 0x%x ...\n", |
fec4585f | 4066 | *num_of_nodes, |
b6b38f70 | 4067 | le32_to_cpu(pSMBr->DFSFlags)); |
fec4585f IM |
4068 | |
4069 | *target_nodes = kzalloc(sizeof(struct dfs_info3_param) * | |
4070 | *num_of_nodes, GFP_KERNEL); | |
4071 | if (*target_nodes == NULL) { | |
b6b38f70 | 4072 | cERROR(1, "Failed to allocate buffer for target_nodes\n"); |
fec4585f | 4073 | rc = -ENOMEM; |
a1fe78f1 | 4074 | goto parse_DFS_referrals_exit; |
fec4585f IM |
4075 | } |
4076 | ||
3ad2f3fb | 4077 | /* collect necessary data from referrals */ |
fec4585f IM |
4078 | for (i = 0; i < *num_of_nodes; i++) { |
4079 | char *temp; | |
4080 | int max_len; | |
4081 | struct dfs_info3_param *node = (*target_nodes)+i; | |
4082 | ||
0e0d2cf3 | 4083 | node->flags = le32_to_cpu(pSMBr->DFSFlags); |
2c55608f | 4084 | if (is_unicode) { |
331c3135 JL |
4085 | __le16 *tmp = kmalloc(strlen(searchName)*2 + 2, |
4086 | GFP_KERNEL); | |
2920ee2b SF |
4087 | if (tmp == NULL) { |
4088 | rc = -ENOMEM; | |
4089 | goto parse_DFS_referrals_exit; | |
4090 | } | |
2c55608f IM |
4091 | cifsConvertToUCS((__le16 *) tmp, searchName, |
4092 | PATH_MAX, nls_codepage, remap); | |
69f801fc JL |
4093 | node->path_consumed = cifs_ucs2_bytes(tmp, |
4094 | le16_to_cpu(pSMBr->PathConsumed), | |
2c55608f IM |
4095 | nls_codepage); |
4096 | kfree(tmp); | |
4097 | } else | |
4098 | node->path_consumed = le16_to_cpu(pSMBr->PathConsumed); | |
4099 | ||
fec4585f IM |
4100 | node->server_type = le16_to_cpu(ref->ServerType); |
4101 | node->ref_flag = le16_to_cpu(ref->ReferralEntryFlags); | |
4102 | ||
4103 | /* copy DfsPath */ | |
4104 | temp = (char *)ref + le16_to_cpu(ref->DfsPathOffset); | |
4105 | max_len = data_end - temp; | |
d185cda7 SF |
4106 | node->path_name = cifs_strndup_from_ucs(temp, max_len, |
4107 | is_unicode, nls_codepage); | |
d8e2f53a JL |
4108 | if (!node->path_name) { |
4109 | rc = -ENOMEM; | |
a1fe78f1 | 4110 | goto parse_DFS_referrals_exit; |
066ce689 | 4111 | } |
fec4585f IM |
4112 | |
4113 | /* copy link target UNC */ | |
4114 | temp = (char *)ref + le16_to_cpu(ref->NetworkAddressOffset); | |
4115 | max_len = data_end - temp; | |
d185cda7 SF |
4116 | node->node_name = cifs_strndup_from_ucs(temp, max_len, |
4117 | is_unicode, nls_codepage); | |
d8e2f53a JL |
4118 | if (!node->node_name) |
4119 | rc = -ENOMEM; | |
fec4585f IM |
4120 | } |
4121 | ||
a1fe78f1 | 4122 | parse_DFS_referrals_exit: |
fec4585f IM |
4123 | if (rc) { |
4124 | free_dfs_info_array(*target_nodes, *num_of_nodes); | |
4125 | *target_nodes = NULL; | |
4126 | *num_of_nodes = 0; | |
4127 | } | |
4128 | return rc; | |
4129 | } | |
4130 | ||
1da177e4 LT |
4131 | int |
4132 | CIFSGetDFSRefer(const int xid, struct cifsSesInfo *ses, | |
4133 | const unsigned char *searchName, | |
c2cf07d5 SF |
4134 | struct dfs_info3_param **target_nodes, |
4135 | unsigned int *num_of_nodes, | |
737b758c | 4136 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
4137 | { |
4138 | /* TRANS2_GET_DFS_REFERRAL */ | |
4139 | TRANSACTION2_GET_DFS_REFER_REQ *pSMB = NULL; | |
4140 | TRANSACTION2_GET_DFS_REFER_RSP *pSMBr = NULL; | |
1da177e4 LT |
4141 | int rc = 0; |
4142 | int bytes_returned; | |
4143 | int name_len; | |
1da177e4 | 4144 | __u16 params, byte_count; |
c2cf07d5 SF |
4145 | *num_of_nodes = 0; |
4146 | *target_nodes = NULL; | |
1da177e4 | 4147 | |
b6b38f70 | 4148 | cFYI(1, "In GetDFSRefer the path %s", searchName); |
1da177e4 LT |
4149 | if (ses == NULL) |
4150 | return -ENODEV; | |
4151 | getDFSRetry: | |
4152 | rc = smb_init(SMB_COM_TRANSACTION2, 15, NULL, (void **) &pSMB, | |
4153 | (void **) &pSMBr); | |
4154 | if (rc) | |
4155 | return rc; | |
50c2f753 SF |
4156 | |
4157 | /* server pointer checked in called function, | |
1982c344 SF |
4158 | but should never be null here anyway */ |
4159 | pSMB->hdr.Mid = GetNextMid(ses->server); | |
1da177e4 LT |
4160 | pSMB->hdr.Tid = ses->ipc_tid; |
4161 | pSMB->hdr.Uid = ses->Suid; | |
26f57364 | 4162 | if (ses->capabilities & CAP_STATUS32) |
1da177e4 | 4163 | pSMB->hdr.Flags2 |= SMBFLG2_ERR_STATUS; |
26f57364 | 4164 | if (ses->capabilities & CAP_DFS) |
1da177e4 | 4165 | pSMB->hdr.Flags2 |= SMBFLG2_DFS; |
1da177e4 LT |
4166 | |
4167 | if (ses->capabilities & CAP_UNICODE) { | |
4168 | pSMB->hdr.Flags2 |= SMBFLG2_UNICODE; | |
4169 | name_len = | |
b1a45695 | 4170 | cifsConvertToUCS((__le16 *) pSMB->RequestFileName, |
737b758c | 4171 | searchName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
4172 | name_len++; /* trailing null */ |
4173 | name_len *= 2; | |
50c2f753 | 4174 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
4175 | name_len = strnlen(searchName, PATH_MAX); |
4176 | name_len++; /* trailing null */ | |
4177 | strncpy(pSMB->RequestFileName, searchName, name_len); | |
4178 | } | |
4179 | ||
790fe579 SF |
4180 | if (ses->server) { |
4181 | if (ses->server->secMode & | |
1a4e15a0 SF |
4182 | (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) |
4183 | pSMB->hdr.Flags2 |= SMBFLG2_SECURITY_SIGNATURE; | |
4184 | } | |
4185 | ||
50c2f753 | 4186 | pSMB->hdr.Uid = ses->Suid; |
1a4e15a0 | 4187 | |
1da177e4 LT |
4188 | params = 2 /* level */ + name_len /*includes null */ ; |
4189 | pSMB->TotalDataCount = 0; | |
4190 | pSMB->DataCount = 0; | |
4191 | pSMB->DataOffset = 0; | |
4192 | pSMB->MaxParameterCount = 0; | |
582d21e5 SF |
4193 | /* BB find exact max SMB PDU from sess structure BB */ |
4194 | pSMB->MaxDataCount = cpu_to_le16(4000); | |
1da177e4 LT |
4195 | pSMB->MaxSetupCount = 0; |
4196 | pSMB->Reserved = 0; | |
4197 | pSMB->Flags = 0; | |
4198 | pSMB->Timeout = 0; | |
4199 | pSMB->Reserved2 = 0; | |
4200 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 4201 | struct smb_com_transaction2_get_dfs_refer_req, MaxReferralLevel) - 4); |
1da177e4 LT |
4202 | pSMB->SetupCount = 1; |
4203 | pSMB->Reserved3 = 0; | |
4204 | pSMB->SubCommand = cpu_to_le16(TRANS2_GET_DFS_REFERRAL); | |
4205 | byte_count = params + 3 /* pad */ ; | |
4206 | pSMB->ParameterCount = cpu_to_le16(params); | |
4207 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4208 | pSMB->MaxReferralLevel = cpu_to_le16(3); | |
4209 | pSMB->hdr.smb_buf_length += byte_count; | |
4210 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4211 | ||
4212 | rc = SendReceive(xid, ses, (struct smb_hdr *) pSMB, | |
4213 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4214 | if (rc) { | |
b6b38f70 | 4215 | cFYI(1, "Send error in GetDFSRefer = %d", rc); |
c2cf07d5 SF |
4216 | goto GetDFSRefExit; |
4217 | } | |
4218 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
1da177e4 | 4219 | |
c2cf07d5 | 4220 | /* BB Also check if enough total bytes returned? */ |
fec4585f | 4221 | if (rc || (pSMBr->ByteCount < 17)) { |
c2cf07d5 | 4222 | rc = -EIO; /* bad smb */ |
fec4585f IM |
4223 | goto GetDFSRefExit; |
4224 | } | |
c2cf07d5 | 4225 | |
b6b38f70 | 4226 | cFYI(1, "Decoding GetDFSRefer response BCC: %d Offset %d", |
fec4585f | 4227 | pSMBr->ByteCount, |
b6b38f70 | 4228 | le16_to_cpu(pSMBr->t2.DataOffset)); |
1da177e4 | 4229 | |
fec4585f | 4230 | /* parse returned result into more usable form */ |
a1fe78f1 | 4231 | rc = parse_DFS_referrals(pSMBr, num_of_nodes, |
2c55608f IM |
4232 | target_nodes, nls_codepage, remap, |
4233 | searchName); | |
c2cf07d5 | 4234 | |
1da177e4 | 4235 | GetDFSRefExit: |
0d817bc0 | 4236 | cifs_buf_release(pSMB); |
1da177e4 LT |
4237 | |
4238 | if (rc == -EAGAIN) | |
4239 | goto getDFSRetry; | |
4240 | ||
4241 | return rc; | |
4242 | } | |
4243 | ||
20962438 SF |
4244 | /* Query File System Info such as free space to old servers such as Win 9x */ |
4245 | int | |
4246 | SMBOldQFSInfo(const int xid, struct cifsTconInfo *tcon, struct kstatfs *FSData) | |
4247 | { | |
4248 | /* level 0x01 SMB_QUERY_FILE_SYSTEM_INFO */ | |
4249 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4250 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4251 | FILE_SYSTEM_ALLOC_INFO *response_data; | |
4252 | int rc = 0; | |
4253 | int bytes_returned = 0; | |
4254 | __u16 params, byte_count; | |
4255 | ||
b6b38f70 | 4256 | cFYI(1, "OldQFSInfo"); |
20962438 SF |
4257 | oldQFSInfoRetry: |
4258 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4259 | (void **) &pSMBr); | |
4260 | if (rc) | |
4261 | return rc; | |
20962438 SF |
4262 | |
4263 | params = 2; /* level */ | |
4264 | pSMB->TotalDataCount = 0; | |
4265 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4266 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
4267 | pSMB->MaxSetupCount = 0; | |
4268 | pSMB->Reserved = 0; | |
4269 | pSMB->Flags = 0; | |
4270 | pSMB->Timeout = 0; | |
4271 | pSMB->Reserved2 = 0; | |
4272 | byte_count = params + 1 /* pad */ ; | |
4273 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
4274 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
4275 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
4276 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
4277 | pSMB->DataCount = 0; | |
4278 | pSMB->DataOffset = 0; | |
4279 | pSMB->SetupCount = 1; | |
4280 | pSMB->Reserved3 = 0; | |
4281 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4282 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_ALLOCATION); | |
4283 | pSMB->hdr.smb_buf_length += byte_count; | |
4284 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4285 | ||
4286 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4287 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4288 | if (rc) { | |
b6b38f70 | 4289 | cFYI(1, "Send error in QFSInfo = %d", rc); |
20962438 SF |
4290 | } else { /* decode response */ |
4291 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4292 | ||
4293 | if (rc || (pSMBr->ByteCount < 18)) | |
4294 | rc = -EIO; /* bad smb */ | |
4295 | else { | |
4296 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
b6b38f70 JP |
4297 | cFYI(1, "qfsinf resp BCC: %d Offset %d", |
4298 | pSMBr->ByteCount, data_offset); | |
20962438 | 4299 | |
50c2f753 | 4300 | response_data = (FILE_SYSTEM_ALLOC_INFO *) |
20962438 SF |
4301 | (((char *) &pSMBr->hdr.Protocol) + data_offset); |
4302 | FSData->f_bsize = | |
4303 | le16_to_cpu(response_data->BytesPerSector) * | |
4304 | le32_to_cpu(response_data-> | |
4305 | SectorsPerAllocationUnit); | |
4306 | FSData->f_blocks = | |
50c2f753 | 4307 | le32_to_cpu(response_data->TotalAllocationUnits); |
20962438 SF |
4308 | FSData->f_bfree = FSData->f_bavail = |
4309 | le32_to_cpu(response_data->FreeAllocationUnits); | |
b6b38f70 JP |
4310 | cFYI(1, "Blocks: %lld Free: %lld Block size %ld", |
4311 | (unsigned long long)FSData->f_blocks, | |
4312 | (unsigned long long)FSData->f_bfree, | |
4313 | FSData->f_bsize); | |
20962438 SF |
4314 | } |
4315 | } | |
4316 | cifs_buf_release(pSMB); | |
4317 | ||
4318 | if (rc == -EAGAIN) | |
4319 | goto oldQFSInfoRetry; | |
4320 | ||
4321 | return rc; | |
4322 | } | |
4323 | ||
1da177e4 | 4324 | int |
737b758c | 4325 | CIFSSMBQFSInfo(const int xid, struct cifsTconInfo *tcon, struct kstatfs *FSData) |
1da177e4 LT |
4326 | { |
4327 | /* level 0x103 SMB_QUERY_FILE_SYSTEM_INFO */ | |
4328 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4329 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4330 | FILE_SYSTEM_INFO *response_data; | |
4331 | int rc = 0; | |
4332 | int bytes_returned = 0; | |
4333 | __u16 params, byte_count; | |
4334 | ||
b6b38f70 | 4335 | cFYI(1, "In QFSInfo"); |
1da177e4 LT |
4336 | QFSInfoRetry: |
4337 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4338 | (void **) &pSMBr); | |
4339 | if (rc) | |
4340 | return rc; | |
4341 | ||
4342 | params = 2; /* level */ | |
4343 | pSMB->TotalDataCount = 0; | |
4344 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
20962438 | 4345 | pSMB->MaxDataCount = cpu_to_le16(1000); |
1da177e4 LT |
4346 | pSMB->MaxSetupCount = 0; |
4347 | pSMB->Reserved = 0; | |
4348 | pSMB->Flags = 0; | |
4349 | pSMB->Timeout = 0; | |
4350 | pSMB->Reserved2 = 0; | |
4351 | byte_count = params + 1 /* pad */ ; | |
4352 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
4353 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
4354 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 4355 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); |
1da177e4 LT |
4356 | pSMB->DataCount = 0; |
4357 | pSMB->DataOffset = 0; | |
4358 | pSMB->SetupCount = 1; | |
4359 | pSMB->Reserved3 = 0; | |
4360 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4361 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_SIZE_INFO); | |
4362 | pSMB->hdr.smb_buf_length += byte_count; | |
4363 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4364 | ||
4365 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4366 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4367 | if (rc) { | |
b6b38f70 | 4368 | cFYI(1, "Send error in QFSInfo = %d", rc); |
1da177e4 | 4369 | } else { /* decode response */ |
50c2f753 | 4370 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
1da177e4 | 4371 | |
20962438 | 4372 | if (rc || (pSMBr->ByteCount < 24)) |
1da177e4 LT |
4373 | rc = -EIO; /* bad smb */ |
4374 | else { | |
4375 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
1da177e4 LT |
4376 | |
4377 | response_data = | |
4378 | (FILE_SYSTEM_INFO | |
4379 | *) (((char *) &pSMBr->hdr.Protocol) + | |
4380 | data_offset); | |
4381 | FSData->f_bsize = | |
4382 | le32_to_cpu(response_data->BytesPerSector) * | |
4383 | le32_to_cpu(response_data-> | |
4384 | SectorsPerAllocationUnit); | |
4385 | FSData->f_blocks = | |
4386 | le64_to_cpu(response_data->TotalAllocationUnits); | |
4387 | FSData->f_bfree = FSData->f_bavail = | |
4388 | le64_to_cpu(response_data->FreeAllocationUnits); | |
b6b38f70 JP |
4389 | cFYI(1, "Blocks: %lld Free: %lld Block size %ld", |
4390 | (unsigned long long)FSData->f_blocks, | |
4391 | (unsigned long long)FSData->f_bfree, | |
4392 | FSData->f_bsize); | |
1da177e4 LT |
4393 | } |
4394 | } | |
4395 | cifs_buf_release(pSMB); | |
4396 | ||
4397 | if (rc == -EAGAIN) | |
4398 | goto QFSInfoRetry; | |
4399 | ||
4400 | return rc; | |
4401 | } | |
4402 | ||
4403 | int | |
737b758c | 4404 | CIFSSMBQFSAttributeInfo(const int xid, struct cifsTconInfo *tcon) |
1da177e4 LT |
4405 | { |
4406 | /* level 0x105 SMB_QUERY_FILE_SYSTEM_INFO */ | |
4407 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4408 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4409 | FILE_SYSTEM_ATTRIBUTE_INFO *response_data; | |
4410 | int rc = 0; | |
4411 | int bytes_returned = 0; | |
4412 | __u16 params, byte_count; | |
4413 | ||
b6b38f70 | 4414 | cFYI(1, "In QFSAttributeInfo"); |
1da177e4 LT |
4415 | QFSAttributeRetry: |
4416 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4417 | (void **) &pSMBr); | |
4418 | if (rc) | |
4419 | return rc; | |
4420 | ||
4421 | params = 2; /* level */ | |
4422 | pSMB->TotalDataCount = 0; | |
4423 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
582d21e5 SF |
4424 | /* BB find exact max SMB PDU from sess structure BB */ |
4425 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1da177e4 LT |
4426 | pSMB->MaxSetupCount = 0; |
4427 | pSMB->Reserved = 0; | |
4428 | pSMB->Flags = 0; | |
4429 | pSMB->Timeout = 0; | |
4430 | pSMB->Reserved2 = 0; | |
4431 | byte_count = params + 1 /* pad */ ; | |
4432 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
4433 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
4434 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 4435 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); |
1da177e4 LT |
4436 | pSMB->DataCount = 0; |
4437 | pSMB->DataOffset = 0; | |
4438 | pSMB->SetupCount = 1; | |
4439 | pSMB->Reserved3 = 0; | |
4440 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4441 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_ATTRIBUTE_INFO); | |
4442 | pSMB->hdr.smb_buf_length += byte_count; | |
4443 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4444 | ||
4445 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4446 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4447 | if (rc) { | |
b6b38f70 | 4448 | cERROR(1, "Send error in QFSAttributeInfo = %d", rc); |
1da177e4 LT |
4449 | } else { /* decode response */ |
4450 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4451 | ||
50c2f753 SF |
4452 | if (rc || (pSMBr->ByteCount < 13)) { |
4453 | /* BB also check if enough bytes returned */ | |
1da177e4 LT |
4454 | rc = -EIO; /* bad smb */ |
4455 | } else { | |
4456 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
4457 | response_data = | |
4458 | (FILE_SYSTEM_ATTRIBUTE_INFO | |
4459 | *) (((char *) &pSMBr->hdr.Protocol) + | |
4460 | data_offset); | |
4461 | memcpy(&tcon->fsAttrInfo, response_data, | |
26f57364 | 4462 | sizeof(FILE_SYSTEM_ATTRIBUTE_INFO)); |
1da177e4 LT |
4463 | } |
4464 | } | |
4465 | cifs_buf_release(pSMB); | |
4466 | ||
4467 | if (rc == -EAGAIN) | |
4468 | goto QFSAttributeRetry; | |
4469 | ||
4470 | return rc; | |
4471 | } | |
4472 | ||
4473 | int | |
737b758c | 4474 | CIFSSMBQFSDeviceInfo(const int xid, struct cifsTconInfo *tcon) |
1da177e4 LT |
4475 | { |
4476 | /* level 0x104 SMB_QUERY_FILE_SYSTEM_INFO */ | |
4477 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4478 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4479 | FILE_SYSTEM_DEVICE_INFO *response_data; | |
4480 | int rc = 0; | |
4481 | int bytes_returned = 0; | |
4482 | __u16 params, byte_count; | |
4483 | ||
b6b38f70 | 4484 | cFYI(1, "In QFSDeviceInfo"); |
1da177e4 LT |
4485 | QFSDeviceRetry: |
4486 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4487 | (void **) &pSMBr); | |
4488 | if (rc) | |
4489 | return rc; | |
4490 | ||
4491 | params = 2; /* level */ | |
4492 | pSMB->TotalDataCount = 0; | |
4493 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
582d21e5 SF |
4494 | /* BB find exact max SMB PDU from sess structure BB */ |
4495 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1da177e4 LT |
4496 | pSMB->MaxSetupCount = 0; |
4497 | pSMB->Reserved = 0; | |
4498 | pSMB->Flags = 0; | |
4499 | pSMB->Timeout = 0; | |
4500 | pSMB->Reserved2 = 0; | |
4501 | byte_count = params + 1 /* pad */ ; | |
4502 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
4503 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
4504 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 4505 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); |
1da177e4 LT |
4506 | |
4507 | pSMB->DataCount = 0; | |
4508 | pSMB->DataOffset = 0; | |
4509 | pSMB->SetupCount = 1; | |
4510 | pSMB->Reserved3 = 0; | |
4511 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4512 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_DEVICE_INFO); | |
4513 | pSMB->hdr.smb_buf_length += byte_count; | |
4514 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4515 | ||
4516 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4517 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4518 | if (rc) { | |
b6b38f70 | 4519 | cFYI(1, "Send error in QFSDeviceInfo = %d", rc); |
1da177e4 LT |
4520 | } else { /* decode response */ |
4521 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4522 | ||
630f3f0c | 4523 | if (rc || (pSMBr->ByteCount < sizeof(FILE_SYSTEM_DEVICE_INFO))) |
1da177e4 LT |
4524 | rc = -EIO; /* bad smb */ |
4525 | else { | |
4526 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
4527 | response_data = | |
737b758c SF |
4528 | (FILE_SYSTEM_DEVICE_INFO *) |
4529 | (((char *) &pSMBr->hdr.Protocol) + | |
1da177e4 LT |
4530 | data_offset); |
4531 | memcpy(&tcon->fsDevInfo, response_data, | |
26f57364 | 4532 | sizeof(FILE_SYSTEM_DEVICE_INFO)); |
1da177e4 LT |
4533 | } |
4534 | } | |
4535 | cifs_buf_release(pSMB); | |
4536 | ||
4537 | if (rc == -EAGAIN) | |
4538 | goto QFSDeviceRetry; | |
4539 | ||
4540 | return rc; | |
4541 | } | |
4542 | ||
4543 | int | |
737b758c | 4544 | CIFSSMBQFSUnixInfo(const int xid, struct cifsTconInfo *tcon) |
1da177e4 LT |
4545 | { |
4546 | /* level 0x200 SMB_QUERY_CIFS_UNIX_INFO */ | |
4547 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4548 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4549 | FILE_SYSTEM_UNIX_INFO *response_data; | |
4550 | int rc = 0; | |
4551 | int bytes_returned = 0; | |
4552 | __u16 params, byte_count; | |
4553 | ||
b6b38f70 | 4554 | cFYI(1, "In QFSUnixInfo"); |
1da177e4 | 4555 | QFSUnixRetry: |
f569599a JL |
4556 | rc = smb_init_no_reconnect(SMB_COM_TRANSACTION2, 15, tcon, |
4557 | (void **) &pSMB, (void **) &pSMBr); | |
1da177e4 LT |
4558 | if (rc) |
4559 | return rc; | |
4560 | ||
4561 | params = 2; /* level */ | |
4562 | pSMB->TotalDataCount = 0; | |
4563 | pSMB->DataCount = 0; | |
4564 | pSMB->DataOffset = 0; | |
4565 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
582d21e5 SF |
4566 | /* BB find exact max SMB PDU from sess structure BB */ |
4567 | pSMB->MaxDataCount = cpu_to_le16(100); | |
1da177e4 LT |
4568 | pSMB->MaxSetupCount = 0; |
4569 | pSMB->Reserved = 0; | |
4570 | pSMB->Flags = 0; | |
4571 | pSMB->Timeout = 0; | |
4572 | pSMB->Reserved2 = 0; | |
4573 | byte_count = params + 1 /* pad */ ; | |
4574 | pSMB->ParameterCount = cpu_to_le16(params); | |
4575 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
50c2f753 SF |
4576 | pSMB->ParameterOffset = cpu_to_le16(offsetof(struct |
4577 | smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
1da177e4 LT |
4578 | pSMB->SetupCount = 1; |
4579 | pSMB->Reserved3 = 0; | |
4580 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4581 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_CIFS_UNIX_INFO); | |
4582 | pSMB->hdr.smb_buf_length += byte_count; | |
4583 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4584 | ||
4585 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4586 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4587 | if (rc) { | |
b6b38f70 | 4588 | cERROR(1, "Send error in QFSUnixInfo = %d", rc); |
1da177e4 LT |
4589 | } else { /* decode response */ |
4590 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4591 | ||
4592 | if (rc || (pSMBr->ByteCount < 13)) { | |
4593 | rc = -EIO; /* bad smb */ | |
4594 | } else { | |
4595 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
4596 | response_data = | |
4597 | (FILE_SYSTEM_UNIX_INFO | |
4598 | *) (((char *) &pSMBr->hdr.Protocol) + | |
4599 | data_offset); | |
4600 | memcpy(&tcon->fsUnixInfo, response_data, | |
26f57364 | 4601 | sizeof(FILE_SYSTEM_UNIX_INFO)); |
1da177e4 LT |
4602 | } |
4603 | } | |
4604 | cifs_buf_release(pSMB); | |
4605 | ||
4606 | if (rc == -EAGAIN) | |
4607 | goto QFSUnixRetry; | |
4608 | ||
4609 | ||
4610 | return rc; | |
4611 | } | |
4612 | ||
ac67055e | 4613 | int |
45abc6ee | 4614 | CIFSSMBSetFSUnixInfo(const int xid, struct cifsTconInfo *tcon, __u64 cap) |
ac67055e JA |
4615 | { |
4616 | /* level 0x200 SMB_SET_CIFS_UNIX_INFO */ | |
4617 | TRANSACTION2_SETFSI_REQ *pSMB = NULL; | |
4618 | TRANSACTION2_SETFSI_RSP *pSMBr = NULL; | |
4619 | int rc = 0; | |
4620 | int bytes_returned = 0; | |
4621 | __u16 params, param_offset, offset, byte_count; | |
4622 | ||
b6b38f70 | 4623 | cFYI(1, "In SETFSUnixInfo"); |
ac67055e | 4624 | SETFSUnixRetry: |
f26282c9 | 4625 | /* BB switch to small buf init to save memory */ |
f569599a JL |
4626 | rc = smb_init_no_reconnect(SMB_COM_TRANSACTION2, 15, tcon, |
4627 | (void **) &pSMB, (void **) &pSMBr); | |
ac67055e JA |
4628 | if (rc) |
4629 | return rc; | |
4630 | ||
4631 | params = 4; /* 2 bytes zero followed by info level. */ | |
4632 | pSMB->MaxSetupCount = 0; | |
4633 | pSMB->Reserved = 0; | |
4634 | pSMB->Flags = 0; | |
4635 | pSMB->Timeout = 0; | |
4636 | pSMB->Reserved2 = 0; | |
50c2f753 SF |
4637 | param_offset = offsetof(struct smb_com_transaction2_setfsi_req, FileNum) |
4638 | - 4; | |
ac67055e JA |
4639 | offset = param_offset + params; |
4640 | ||
4641 | pSMB->MaxParameterCount = cpu_to_le16(4); | |
582d21e5 SF |
4642 | /* BB find exact max SMB PDU from sess structure BB */ |
4643 | pSMB->MaxDataCount = cpu_to_le16(100); | |
ac67055e JA |
4644 | pSMB->SetupCount = 1; |
4645 | pSMB->Reserved3 = 0; | |
4646 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FS_INFORMATION); | |
4647 | byte_count = 1 /* pad */ + params + 12; | |
4648 | ||
4649 | pSMB->DataCount = cpu_to_le16(12); | |
4650 | pSMB->ParameterCount = cpu_to_le16(params); | |
4651 | pSMB->TotalDataCount = pSMB->DataCount; | |
4652 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4653 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4654 | pSMB->DataOffset = cpu_to_le16(offset); | |
4655 | ||
4656 | /* Params. */ | |
4657 | pSMB->FileNum = 0; | |
4658 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_CIFS_UNIX_INFO); | |
4659 | ||
4660 | /* Data. */ | |
4661 | pSMB->ClientUnixMajor = cpu_to_le16(CIFS_UNIX_MAJOR_VERSION); | |
4662 | pSMB->ClientUnixMinor = cpu_to_le16(CIFS_UNIX_MINOR_VERSION); | |
4663 | pSMB->ClientUnixCap = cpu_to_le64(cap); | |
4664 | ||
4665 | pSMB->hdr.smb_buf_length += byte_count; | |
4666 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4667 | ||
4668 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4669 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4670 | if (rc) { | |
b6b38f70 | 4671 | cERROR(1, "Send error in SETFSUnixInfo = %d", rc); |
ac67055e JA |
4672 | } else { /* decode response */ |
4673 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
ad7a2926 | 4674 | if (rc) |
ac67055e | 4675 | rc = -EIO; /* bad smb */ |
ac67055e JA |
4676 | } |
4677 | cifs_buf_release(pSMB); | |
4678 | ||
4679 | if (rc == -EAGAIN) | |
4680 | goto SETFSUnixRetry; | |
4681 | ||
4682 | return rc; | |
4683 | } | |
4684 | ||
4685 | ||
1da177e4 LT |
4686 | |
4687 | int | |
4688 | CIFSSMBQFSPosixInfo(const int xid, struct cifsTconInfo *tcon, | |
737b758c | 4689 | struct kstatfs *FSData) |
1da177e4 LT |
4690 | { |
4691 | /* level 0x201 SMB_QUERY_CIFS_POSIX_INFO */ | |
4692 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4693 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4694 | FILE_SYSTEM_POSIX_INFO *response_data; | |
4695 | int rc = 0; | |
4696 | int bytes_returned = 0; | |
4697 | __u16 params, byte_count; | |
4698 | ||
b6b38f70 | 4699 | cFYI(1, "In QFSPosixInfo"); |
1da177e4 LT |
4700 | QFSPosixRetry: |
4701 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4702 | (void **) &pSMBr); | |
4703 | if (rc) | |
4704 | return rc; | |
4705 | ||
4706 | params = 2; /* level */ | |
4707 | pSMB->TotalDataCount = 0; | |
4708 | pSMB->DataCount = 0; | |
4709 | pSMB->DataOffset = 0; | |
4710 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
582d21e5 SF |
4711 | /* BB find exact max SMB PDU from sess structure BB */ |
4712 | pSMB->MaxDataCount = cpu_to_le16(100); | |
1da177e4 LT |
4713 | pSMB->MaxSetupCount = 0; |
4714 | pSMB->Reserved = 0; | |
4715 | pSMB->Flags = 0; | |
4716 | pSMB->Timeout = 0; | |
4717 | pSMB->Reserved2 = 0; | |
4718 | byte_count = params + 1 /* pad */ ; | |
4719 | pSMB->ParameterCount = cpu_to_le16(params); | |
4720 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
50c2f753 SF |
4721 | pSMB->ParameterOffset = cpu_to_le16(offsetof(struct |
4722 | smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
1da177e4 LT |
4723 | pSMB->SetupCount = 1; |
4724 | pSMB->Reserved3 = 0; | |
4725 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4726 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_POSIX_FS_INFO); | |
4727 | pSMB->hdr.smb_buf_length += byte_count; | |
4728 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4729 | ||
4730 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4731 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4732 | if (rc) { | |
b6b38f70 | 4733 | cFYI(1, "Send error in QFSUnixInfo = %d", rc); |
1da177e4 LT |
4734 | } else { /* decode response */ |
4735 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4736 | ||
4737 | if (rc || (pSMBr->ByteCount < 13)) { | |
4738 | rc = -EIO; /* bad smb */ | |
4739 | } else { | |
4740 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
4741 | response_data = | |
4742 | (FILE_SYSTEM_POSIX_INFO | |
4743 | *) (((char *) &pSMBr->hdr.Protocol) + | |
4744 | data_offset); | |
4745 | FSData->f_bsize = | |
4746 | le32_to_cpu(response_data->BlockSize); | |
4747 | FSData->f_blocks = | |
4748 | le64_to_cpu(response_data->TotalBlocks); | |
4749 | FSData->f_bfree = | |
4750 | le64_to_cpu(response_data->BlocksAvail); | |
790fe579 | 4751 | if (response_data->UserBlocksAvail == cpu_to_le64(-1)) { |
1da177e4 LT |
4752 | FSData->f_bavail = FSData->f_bfree; |
4753 | } else { | |
4754 | FSData->f_bavail = | |
50c2f753 | 4755 | le64_to_cpu(response_data->UserBlocksAvail); |
1da177e4 | 4756 | } |
790fe579 | 4757 | if (response_data->TotalFileNodes != cpu_to_le64(-1)) |
1da177e4 | 4758 | FSData->f_files = |
50c2f753 | 4759 | le64_to_cpu(response_data->TotalFileNodes); |
790fe579 | 4760 | if (response_data->FreeFileNodes != cpu_to_le64(-1)) |
1da177e4 | 4761 | FSData->f_ffree = |
50c2f753 | 4762 | le64_to_cpu(response_data->FreeFileNodes); |
1da177e4 LT |
4763 | } |
4764 | } | |
4765 | cifs_buf_release(pSMB); | |
4766 | ||
4767 | if (rc == -EAGAIN) | |
4768 | goto QFSPosixRetry; | |
4769 | ||
4770 | return rc; | |
4771 | } | |
4772 | ||
4773 | ||
50c2f753 SF |
4774 | /* We can not use write of zero bytes trick to |
4775 | set file size due to need for large file support. Also note that | |
4776 | this SetPathInfo is preferred to SetFileInfo based method in next | |
1da177e4 LT |
4777 | routine which is only needed to work around a sharing violation bug |
4778 | in Samba which this routine can run into */ | |
4779 | ||
4780 | int | |
4781 | CIFSSMBSetEOF(const int xid, struct cifsTconInfo *tcon, const char *fileName, | |
4b18f2a9 | 4782 | __u64 size, bool SetAllocation, |
737b758c | 4783 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
4784 | { |
4785 | struct smb_com_transaction2_spi_req *pSMB = NULL; | |
4786 | struct smb_com_transaction2_spi_rsp *pSMBr = NULL; | |
4787 | struct file_end_of_file_info *parm_data; | |
4788 | int name_len; | |
4789 | int rc = 0; | |
4790 | int bytes_returned = 0; | |
4791 | __u16 params, byte_count, data_count, param_offset, offset; | |
4792 | ||
b6b38f70 | 4793 | cFYI(1, "In SetEOF"); |
1da177e4 LT |
4794 | SetEOFRetry: |
4795 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4796 | (void **) &pSMBr); | |
4797 | if (rc) | |
4798 | return rc; | |
4799 | ||
4800 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
4801 | name_len = | |
b1a45695 | 4802 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 4803 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
4804 | name_len++; /* trailing null */ |
4805 | name_len *= 2; | |
3e87d803 | 4806 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
4807 | name_len = strnlen(fileName, PATH_MAX); |
4808 | name_len++; /* trailing null */ | |
4809 | strncpy(pSMB->FileName, fileName, name_len); | |
4810 | } | |
4811 | params = 6 + name_len; | |
26f57364 | 4812 | data_count = sizeof(struct file_end_of_file_info); |
1da177e4 | 4813 | pSMB->MaxParameterCount = cpu_to_le16(2); |
3e87d803 | 4814 | pSMB->MaxDataCount = cpu_to_le16(4100); |
1da177e4 LT |
4815 | pSMB->MaxSetupCount = 0; |
4816 | pSMB->Reserved = 0; | |
4817 | pSMB->Flags = 0; | |
4818 | pSMB->Timeout = 0; | |
4819 | pSMB->Reserved2 = 0; | |
4820 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 4821 | InformationLevel) - 4; |
1da177e4 | 4822 | offset = param_offset + params; |
790fe579 | 4823 | if (SetAllocation) { |
50c2f753 SF |
4824 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
4825 | pSMB->InformationLevel = | |
4826 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO2); | |
4827 | else | |
4828 | pSMB->InformationLevel = | |
4829 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO); | |
4830 | } else /* Set File Size */ { | |
1da177e4 LT |
4831 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
4832 | pSMB->InformationLevel = | |
50c2f753 | 4833 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO2); |
1da177e4 LT |
4834 | else |
4835 | pSMB->InformationLevel = | |
50c2f753 | 4836 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO); |
1da177e4 LT |
4837 | } |
4838 | ||
4839 | parm_data = | |
4840 | (struct file_end_of_file_info *) (((char *) &pSMB->hdr.Protocol) + | |
4841 | offset); | |
4842 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4843 | pSMB->DataOffset = cpu_to_le16(offset); | |
4844 | pSMB->SetupCount = 1; | |
4845 | pSMB->Reserved3 = 0; | |
4846 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
4847 | byte_count = 3 /* pad */ + params + data_count; | |
4848 | pSMB->DataCount = cpu_to_le16(data_count); | |
4849 | pSMB->TotalDataCount = pSMB->DataCount; | |
4850 | pSMB->ParameterCount = cpu_to_le16(params); | |
4851 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4852 | pSMB->Reserved4 = 0; | |
4853 | pSMB->hdr.smb_buf_length += byte_count; | |
4854 | parm_data->FileSize = cpu_to_le64(size); | |
4855 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4856 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4857 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
ad7a2926 | 4858 | if (rc) |
b6b38f70 | 4859 | cFYI(1, "SetPathInfo (file size) returned %d", rc); |
1da177e4 LT |
4860 | |
4861 | cifs_buf_release(pSMB); | |
4862 | ||
4863 | if (rc == -EAGAIN) | |
4864 | goto SetEOFRetry; | |
4865 | ||
4866 | return rc; | |
4867 | } | |
4868 | ||
4869 | int | |
50c2f753 | 4870 | CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon, __u64 size, |
4b18f2a9 | 4871 | __u16 fid, __u32 pid_of_opener, bool SetAllocation) |
1da177e4 LT |
4872 | { |
4873 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
1da177e4 LT |
4874 | char *data_offset; |
4875 | struct file_end_of_file_info *parm_data; | |
4876 | int rc = 0; | |
1da177e4 LT |
4877 | __u16 params, param_offset, offset, byte_count, count; |
4878 | ||
b6b38f70 JP |
4879 | cFYI(1, "SetFileSize (via SetFileInfo) %lld", |
4880 | (long long)size); | |
cd63499c SF |
4881 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
4882 | ||
1da177e4 LT |
4883 | if (rc) |
4884 | return rc; | |
4885 | ||
4886 | pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener); | |
4887 | pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16)); | |
50c2f753 | 4888 | |
1da177e4 LT |
4889 | params = 6; |
4890 | pSMB->MaxSetupCount = 0; | |
4891 | pSMB->Reserved = 0; | |
4892 | pSMB->Flags = 0; | |
4893 | pSMB->Timeout = 0; | |
4894 | pSMB->Reserved2 = 0; | |
4895 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
4896 | offset = param_offset + params; | |
4897 | ||
50c2f753 | 4898 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; |
1da177e4 LT |
4899 | |
4900 | count = sizeof(struct file_end_of_file_info); | |
4901 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
582d21e5 SF |
4902 | /* BB find exact max SMB PDU from sess structure BB */ |
4903 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1da177e4 LT |
4904 | pSMB->SetupCount = 1; |
4905 | pSMB->Reserved3 = 0; | |
4906 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
4907 | byte_count = 3 /* pad */ + params + count; | |
4908 | pSMB->DataCount = cpu_to_le16(count); | |
4909 | pSMB->ParameterCount = cpu_to_le16(params); | |
4910 | pSMB->TotalDataCount = pSMB->DataCount; | |
4911 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4912 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4913 | parm_data = | |
50c2f753 SF |
4914 | (struct file_end_of_file_info *) (((char *) &pSMB->hdr.Protocol) |
4915 | + offset); | |
1da177e4 LT |
4916 | pSMB->DataOffset = cpu_to_le16(offset); |
4917 | parm_data->FileSize = cpu_to_le64(size); | |
4918 | pSMB->Fid = fid; | |
790fe579 | 4919 | if (SetAllocation) { |
1da177e4 LT |
4920 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
4921 | pSMB->InformationLevel = | |
4922 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO2); | |
4923 | else | |
4924 | pSMB->InformationLevel = | |
4925 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO); | |
50c2f753 | 4926 | } else /* Set File Size */ { |
1da177e4 LT |
4927 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
4928 | pSMB->InformationLevel = | |
50c2f753 | 4929 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO2); |
1da177e4 LT |
4930 | else |
4931 | pSMB->InformationLevel = | |
50c2f753 | 4932 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO); |
1da177e4 LT |
4933 | } |
4934 | pSMB->Reserved4 = 0; | |
4935 | pSMB->hdr.smb_buf_length += byte_count; | |
4936 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
133672ef | 4937 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); |
1da177e4 | 4938 | if (rc) { |
b6b38f70 | 4939 | cFYI(1, "Send error in SetFileInfo (SetFileSize) = %d", rc); |
1da177e4 LT |
4940 | } |
4941 | ||
50c2f753 | 4942 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
1da177e4 LT |
4943 | since file handle passed in no longer valid */ |
4944 | ||
4945 | return rc; | |
4946 | } | |
4947 | ||
50c2f753 | 4948 | /* Some legacy servers such as NT4 require that the file times be set on |
1da177e4 LT |
4949 | an open handle, rather than by pathname - this is awkward due to |
4950 | potential access conflicts on the open, but it is unavoidable for these | |
4951 | old servers since the only other choice is to go from 100 nanosecond DCE | |
4952 | time and resort to the original setpathinfo level which takes the ancient | |
4953 | DOS time format with 2 second granularity */ | |
4954 | int | |
2dd2dfa0 JL |
4955 | CIFSSMBSetFileInfo(const int xid, struct cifsTconInfo *tcon, |
4956 | const FILE_BASIC_INFO *data, __u16 fid, __u32 pid_of_opener) | |
1da177e4 LT |
4957 | { |
4958 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
1da177e4 LT |
4959 | char *data_offset; |
4960 | int rc = 0; | |
1da177e4 LT |
4961 | __u16 params, param_offset, offset, byte_count, count; |
4962 | ||
b6b38f70 | 4963 | cFYI(1, "Set Times (via SetFileInfo)"); |
cd63499c SF |
4964 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
4965 | ||
1da177e4 LT |
4966 | if (rc) |
4967 | return rc; | |
4968 | ||
2dd2dfa0 JL |
4969 | pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener); |
4970 | pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16)); | |
50c2f753 | 4971 | |
1da177e4 LT |
4972 | params = 6; |
4973 | pSMB->MaxSetupCount = 0; | |
4974 | pSMB->Reserved = 0; | |
4975 | pSMB->Flags = 0; | |
4976 | pSMB->Timeout = 0; | |
4977 | pSMB->Reserved2 = 0; | |
4978 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
4979 | offset = param_offset + params; | |
4980 | ||
50c2f753 | 4981 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; |
1da177e4 | 4982 | |
26f57364 | 4983 | count = sizeof(FILE_BASIC_INFO); |
1da177e4 | 4984 | pSMB->MaxParameterCount = cpu_to_le16(2); |
582d21e5 SF |
4985 | /* BB find max SMB PDU from sess */ |
4986 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1da177e4 LT |
4987 | pSMB->SetupCount = 1; |
4988 | pSMB->Reserved3 = 0; | |
4989 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
4990 | byte_count = 3 /* pad */ + params + count; | |
4991 | pSMB->DataCount = cpu_to_le16(count); | |
4992 | pSMB->ParameterCount = cpu_to_le16(params); | |
4993 | pSMB->TotalDataCount = pSMB->DataCount; | |
4994 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4995 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4996 | pSMB->DataOffset = cpu_to_le16(offset); | |
4997 | pSMB->Fid = fid; | |
4998 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) | |
4999 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO2); | |
5000 | else | |
5001 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO); | |
5002 | pSMB->Reserved4 = 0; | |
5003 | pSMB->hdr.smb_buf_length += byte_count; | |
5004 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
50c2f753 | 5005 | memcpy(data_offset, data, sizeof(FILE_BASIC_INFO)); |
133672ef | 5006 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); |
ad7a2926 | 5007 | if (rc) |
b6b38f70 | 5008 | cFYI(1, "Send error in Set Time (SetFileInfo) = %d", rc); |
1da177e4 | 5009 | |
50c2f753 | 5010 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
1da177e4 LT |
5011 | since file handle passed in no longer valid */ |
5012 | ||
5013 | return rc; | |
5014 | } | |
5015 | ||
6d22f098 JL |
5016 | int |
5017 | CIFSSMBSetFileDisposition(const int xid, struct cifsTconInfo *tcon, | |
5018 | bool delete_file, __u16 fid, __u32 pid_of_opener) | |
5019 | { | |
5020 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
5021 | char *data_offset; | |
5022 | int rc = 0; | |
5023 | __u16 params, param_offset, offset, byte_count, count; | |
5024 | ||
b6b38f70 | 5025 | cFYI(1, "Set File Disposition (via SetFileInfo)"); |
6d22f098 JL |
5026 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
5027 | ||
5028 | if (rc) | |
5029 | return rc; | |
5030 | ||
5031 | pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener); | |
5032 | pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16)); | |
5033 | ||
5034 | params = 6; | |
5035 | pSMB->MaxSetupCount = 0; | |
5036 | pSMB->Reserved = 0; | |
5037 | pSMB->Flags = 0; | |
5038 | pSMB->Timeout = 0; | |
5039 | pSMB->Reserved2 = 0; | |
5040 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
5041 | offset = param_offset + params; | |
5042 | ||
5043 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
5044 | ||
5045 | count = 1; | |
5046 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
5047 | /* BB find max SMB PDU from sess */ | |
5048 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
5049 | pSMB->SetupCount = 1; | |
5050 | pSMB->Reserved3 = 0; | |
5051 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
5052 | byte_count = 3 /* pad */ + params + count; | |
5053 | pSMB->DataCount = cpu_to_le16(count); | |
5054 | pSMB->ParameterCount = cpu_to_le16(params); | |
5055 | pSMB->TotalDataCount = pSMB->DataCount; | |
5056 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
5057 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
5058 | pSMB->DataOffset = cpu_to_le16(offset); | |
5059 | pSMB->Fid = fid; | |
5060 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_DISPOSITION_INFO); | |
5061 | pSMB->Reserved4 = 0; | |
5062 | pSMB->hdr.smb_buf_length += byte_count; | |
5063 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
5064 | *data_offset = delete_file ? 1 : 0; | |
5065 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); | |
5066 | if (rc) | |
b6b38f70 | 5067 | cFYI(1, "Send error in SetFileDisposition = %d", rc); |
6d22f098 JL |
5068 | |
5069 | return rc; | |
5070 | } | |
1da177e4 LT |
5071 | |
5072 | int | |
6fc000e5 JL |
5073 | CIFSSMBSetPathInfo(const int xid, struct cifsTconInfo *tcon, |
5074 | const char *fileName, const FILE_BASIC_INFO *data, | |
5075 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
5076 | { |
5077 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
5078 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
5079 | int name_len; | |
5080 | int rc = 0; | |
5081 | int bytes_returned = 0; | |
5082 | char *data_offset; | |
5083 | __u16 params, param_offset, offset, byte_count, count; | |
5084 | ||
b6b38f70 | 5085 | cFYI(1, "In SetTimes"); |
1da177e4 LT |
5086 | |
5087 | SetTimesRetry: | |
5088 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
5089 | (void **) &pSMBr); | |
5090 | if (rc) | |
5091 | return rc; | |
5092 | ||
5093 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
5094 | name_len = | |
b1a45695 | 5095 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 5096 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
5097 | name_len++; /* trailing null */ |
5098 | name_len *= 2; | |
50c2f753 | 5099 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
5100 | name_len = strnlen(fileName, PATH_MAX); |
5101 | name_len++; /* trailing null */ | |
5102 | strncpy(pSMB->FileName, fileName, name_len); | |
5103 | } | |
5104 | ||
5105 | params = 6 + name_len; | |
26f57364 | 5106 | count = sizeof(FILE_BASIC_INFO); |
1da177e4 | 5107 | pSMB->MaxParameterCount = cpu_to_le16(2); |
582d21e5 SF |
5108 | /* BB find max SMB PDU from sess structure BB */ |
5109 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1da177e4 LT |
5110 | pSMB->MaxSetupCount = 0; |
5111 | pSMB->Reserved = 0; | |
5112 | pSMB->Flags = 0; | |
5113 | pSMB->Timeout = 0; | |
5114 | pSMB->Reserved2 = 0; | |
5115 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 5116 | InformationLevel) - 4; |
1da177e4 LT |
5117 | offset = param_offset + params; |
5118 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
5119 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
5120 | pSMB->DataOffset = cpu_to_le16(offset); | |
5121 | pSMB->SetupCount = 1; | |
5122 | pSMB->Reserved3 = 0; | |
5123 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
5124 | byte_count = 3 /* pad */ + params + count; | |
5125 | ||
5126 | pSMB->DataCount = cpu_to_le16(count); | |
5127 | pSMB->ParameterCount = cpu_to_le16(params); | |
5128 | pSMB->TotalDataCount = pSMB->DataCount; | |
5129 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
5130 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) | |
5131 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO2); | |
5132 | else | |
5133 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO); | |
5134 | pSMB->Reserved4 = 0; | |
5135 | pSMB->hdr.smb_buf_length += byte_count; | |
26f57364 | 5136 | memcpy(data_offset, data, sizeof(FILE_BASIC_INFO)); |
1da177e4 LT |
5137 | pSMB->ByteCount = cpu_to_le16(byte_count); |
5138 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
5139 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
ad7a2926 | 5140 | if (rc) |
b6b38f70 | 5141 | cFYI(1, "SetPathInfo (times) returned %d", rc); |
1da177e4 LT |
5142 | |
5143 | cifs_buf_release(pSMB); | |
5144 | ||
5145 | if (rc == -EAGAIN) | |
5146 | goto SetTimesRetry; | |
5147 | ||
5148 | return rc; | |
5149 | } | |
5150 | ||
5151 | /* Can not be used to set time stamps yet (due to old DOS time format) */ | |
5152 | /* Can be used to set attributes */ | |
5153 | #if 0 /* Possibly not needed - since it turns out that strangely NT4 has a bug | |
5154 | handling it anyway and NT4 was what we thought it would be needed for | |
5155 | Do not delete it until we prove whether needed for Win9x though */ | |
5156 | int | |
5157 | CIFSSMBSetAttrLegacy(int xid, struct cifsTconInfo *tcon, char *fileName, | |
5158 | __u16 dos_attrs, const struct nls_table *nls_codepage) | |
5159 | { | |
5160 | SETATTR_REQ *pSMB = NULL; | |
5161 | SETATTR_RSP *pSMBr = NULL; | |
5162 | int rc = 0; | |
5163 | int bytes_returned; | |
5164 | int name_len; | |
5165 | ||
b6b38f70 | 5166 | cFYI(1, "In SetAttrLegacy"); |
1da177e4 LT |
5167 | |
5168 | SetAttrLgcyRetry: | |
5169 | rc = smb_init(SMB_COM_SETATTR, 8, tcon, (void **) &pSMB, | |
5170 | (void **) &pSMBr); | |
5171 | if (rc) | |
5172 | return rc; | |
5173 | ||
5174 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
5175 | name_len = | |
50c2f753 | 5176 | ConvertToUCS((__le16 *) pSMB->fileName, fileName, |
1da177e4 LT |
5177 | PATH_MAX, nls_codepage); |
5178 | name_len++; /* trailing null */ | |
5179 | name_len *= 2; | |
50c2f753 | 5180 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
5181 | name_len = strnlen(fileName, PATH_MAX); |
5182 | name_len++; /* trailing null */ | |
5183 | strncpy(pSMB->fileName, fileName, name_len); | |
5184 | } | |
5185 | pSMB->attr = cpu_to_le16(dos_attrs); | |
5186 | pSMB->BufferFormat = 0x04; | |
5187 | pSMB->hdr.smb_buf_length += name_len + 1; | |
5188 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
5189 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
5190 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
ad7a2926 | 5191 | if (rc) |
b6b38f70 | 5192 | cFYI(1, "Error in LegacySetAttr = %d", rc); |
1da177e4 LT |
5193 | |
5194 | cifs_buf_release(pSMB); | |
5195 | ||
5196 | if (rc == -EAGAIN) | |
5197 | goto SetAttrLgcyRetry; | |
5198 | ||
5199 | return rc; | |
5200 | } | |
5201 | #endif /* temporarily unneeded SetAttr legacy function */ | |
5202 | ||
654cf14a JL |
5203 | static void |
5204 | cifs_fill_unix_set_info(FILE_UNIX_BASIC_INFO *data_offset, | |
5205 | const struct cifs_unix_set_info_args *args) | |
5206 | { | |
5207 | u64 mode = args->mode; | |
5208 | ||
5209 | /* | |
5210 | * Samba server ignores set of file size to zero due to bugs in some | |
5211 | * older clients, but we should be precise - we use SetFileSize to | |
5212 | * set file size and do not want to truncate file size to zero | |
5213 | * accidently as happened on one Samba server beta by putting | |
5214 | * zero instead of -1 here | |
5215 | */ | |
5216 | data_offset->EndOfFile = cpu_to_le64(NO_CHANGE_64); | |
5217 | data_offset->NumOfBytes = cpu_to_le64(NO_CHANGE_64); | |
5218 | data_offset->LastStatusChange = cpu_to_le64(args->ctime); | |
5219 | data_offset->LastAccessTime = cpu_to_le64(args->atime); | |
5220 | data_offset->LastModificationTime = cpu_to_le64(args->mtime); | |
5221 | data_offset->Uid = cpu_to_le64(args->uid); | |
5222 | data_offset->Gid = cpu_to_le64(args->gid); | |
5223 | /* better to leave device as zero when it is */ | |
5224 | data_offset->DevMajor = cpu_to_le64(MAJOR(args->device)); | |
5225 | data_offset->DevMinor = cpu_to_le64(MINOR(args->device)); | |
5226 | data_offset->Permissions = cpu_to_le64(mode); | |
5227 | ||
5228 | if (S_ISREG(mode)) | |
5229 | data_offset->Type = cpu_to_le32(UNIX_FILE); | |
5230 | else if (S_ISDIR(mode)) | |
5231 | data_offset->Type = cpu_to_le32(UNIX_DIR); | |
5232 | else if (S_ISLNK(mode)) | |
5233 | data_offset->Type = cpu_to_le32(UNIX_SYMLINK); | |
5234 | else if (S_ISCHR(mode)) | |
5235 | data_offset->Type = cpu_to_le32(UNIX_CHARDEV); | |
5236 | else if (S_ISBLK(mode)) | |
5237 | data_offset->Type = cpu_to_le32(UNIX_BLOCKDEV); | |
5238 | else if (S_ISFIFO(mode)) | |
5239 | data_offset->Type = cpu_to_le32(UNIX_FIFO); | |
5240 | else if (S_ISSOCK(mode)) | |
5241 | data_offset->Type = cpu_to_le32(UNIX_SOCKET); | |
5242 | } | |
5243 | ||
3bbeeb3c JL |
5244 | int |
5245 | CIFSSMBUnixSetFileInfo(const int xid, struct cifsTconInfo *tcon, | |
5246 | const struct cifs_unix_set_info_args *args, | |
5247 | u16 fid, u32 pid_of_opener) | |
5248 | { | |
5249 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
5250 | FILE_UNIX_BASIC_INFO *data_offset; | |
5251 | int rc = 0; | |
5252 | u16 params, param_offset, offset, byte_count, count; | |
5253 | ||
b6b38f70 | 5254 | cFYI(1, "Set Unix Info (via SetFileInfo)"); |
3bbeeb3c JL |
5255 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
5256 | ||
5257 | if (rc) | |
5258 | return rc; | |
5259 | ||
5260 | pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener); | |
5261 | pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16)); | |
5262 | ||
5263 | params = 6; | |
5264 | pSMB->MaxSetupCount = 0; | |
5265 | pSMB->Reserved = 0; | |
5266 | pSMB->Flags = 0; | |
5267 | pSMB->Timeout = 0; | |
5268 | pSMB->Reserved2 = 0; | |
5269 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
5270 | offset = param_offset + params; | |
5271 | ||
5272 | data_offset = (FILE_UNIX_BASIC_INFO *) | |
5273 | ((char *)(&pSMB->hdr.Protocol) + offset); | |
5274 | count = sizeof(FILE_UNIX_BASIC_INFO); | |
5275 | ||
5276 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
5277 | /* BB find max SMB PDU from sess */ | |
5278 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
5279 | pSMB->SetupCount = 1; | |
5280 | pSMB->Reserved3 = 0; | |
5281 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
5282 | byte_count = 3 /* pad */ + params + count; | |
5283 | pSMB->DataCount = cpu_to_le16(count); | |
5284 | pSMB->ParameterCount = cpu_to_le16(params); | |
5285 | pSMB->TotalDataCount = pSMB->DataCount; | |
5286 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
5287 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
5288 | pSMB->DataOffset = cpu_to_le16(offset); | |
5289 | pSMB->Fid = fid; | |
5290 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_BASIC); | |
5291 | pSMB->Reserved4 = 0; | |
5292 | pSMB->hdr.smb_buf_length += byte_count; | |
5293 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
5294 | ||
5295 | cifs_fill_unix_set_info(data_offset, args); | |
5296 | ||
5297 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); | |
5298 | if (rc) | |
b6b38f70 | 5299 | cFYI(1, "Send error in Set Time (SetFileInfo) = %d", rc); |
3bbeeb3c JL |
5300 | |
5301 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
5302 | since file handle passed in no longer valid */ | |
5303 | ||
5304 | return rc; | |
5305 | } | |
5306 | ||
1da177e4 | 5307 | int |
01ea95e3 JL |
5308 | CIFSSMBUnixSetPathInfo(const int xid, struct cifsTconInfo *tcon, char *fileName, |
5309 | const struct cifs_unix_set_info_args *args, | |
5310 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
5311 | { |
5312 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
5313 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
5314 | int name_len; | |
5315 | int rc = 0; | |
5316 | int bytes_returned = 0; | |
5317 | FILE_UNIX_BASIC_INFO *data_offset; | |
5318 | __u16 params, param_offset, offset, count, byte_count; | |
5319 | ||
b6b38f70 | 5320 | cFYI(1, "In SetUID/GID/Mode"); |
1da177e4 LT |
5321 | setPermsRetry: |
5322 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
5323 | (void **) &pSMBr); | |
5324 | if (rc) | |
5325 | return rc; | |
5326 | ||
5327 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
5328 | name_len = | |
50c2f753 | 5329 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 5330 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
5331 | name_len++; /* trailing null */ |
5332 | name_len *= 2; | |
3e87d803 | 5333 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
5334 | name_len = strnlen(fileName, PATH_MAX); |
5335 | name_len++; /* trailing null */ | |
5336 | strncpy(pSMB->FileName, fileName, name_len); | |
5337 | } | |
5338 | ||
5339 | params = 6 + name_len; | |
26f57364 | 5340 | count = sizeof(FILE_UNIX_BASIC_INFO); |
1da177e4 | 5341 | pSMB->MaxParameterCount = cpu_to_le16(2); |
582d21e5 SF |
5342 | /* BB find max SMB PDU from sess structure BB */ |
5343 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1da177e4 LT |
5344 | pSMB->MaxSetupCount = 0; |
5345 | pSMB->Reserved = 0; | |
5346 | pSMB->Flags = 0; | |
5347 | pSMB->Timeout = 0; | |
5348 | pSMB->Reserved2 = 0; | |
5349 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 5350 | InformationLevel) - 4; |
1da177e4 LT |
5351 | offset = param_offset + params; |
5352 | data_offset = | |
5353 | (FILE_UNIX_BASIC_INFO *) ((char *) &pSMB->hdr.Protocol + | |
5354 | offset); | |
5355 | memset(data_offset, 0, count); | |
5356 | pSMB->DataOffset = cpu_to_le16(offset); | |
5357 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
5358 | pSMB->SetupCount = 1; | |
5359 | pSMB->Reserved3 = 0; | |
5360 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
5361 | byte_count = 3 /* pad */ + params + count; | |
5362 | pSMB->ParameterCount = cpu_to_le16(params); | |
5363 | pSMB->DataCount = cpu_to_le16(count); | |
5364 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
5365 | pSMB->TotalDataCount = pSMB->DataCount; | |
5366 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_BASIC); | |
5367 | pSMB->Reserved4 = 0; | |
5368 | pSMB->hdr.smb_buf_length += byte_count; | |
1da177e4 | 5369 | |
654cf14a | 5370 | cifs_fill_unix_set_info(data_offset, args); |
1da177e4 LT |
5371 | |
5372 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
5373 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
5374 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
ad7a2926 | 5375 | if (rc) |
b6b38f70 | 5376 | cFYI(1, "SetPathInfo (perms) returned %d", rc); |
1da177e4 | 5377 | |
0d817bc0 | 5378 | cifs_buf_release(pSMB); |
1da177e4 LT |
5379 | if (rc == -EAGAIN) |
5380 | goto setPermsRetry; | |
5381 | return rc; | |
5382 | } | |
5383 | ||
50c2f753 | 5384 | int CIFSSMBNotify(const int xid, struct cifsTconInfo *tcon, |
167a251a | 5385 | const int notify_subdirs, const __u16 netfid, |
50c2f753 | 5386 | __u32 filter, struct file *pfile, int multishot, |
167a251a | 5387 | const struct nls_table *nls_codepage) |
1da177e4 LT |
5388 | { |
5389 | int rc = 0; | |
50c2f753 SF |
5390 | struct smb_com_transaction_change_notify_req *pSMB = NULL; |
5391 | struct smb_com_ntransaction_change_notify_rsp *pSMBr = NULL; | |
abb15b8a | 5392 | struct dir_notify_req *dnotify_req; |
1da177e4 LT |
5393 | int bytes_returned; |
5394 | ||
b6b38f70 | 5395 | cFYI(1, "In CIFSSMBNotify for file handle %d", (int)netfid); |
1da177e4 | 5396 | rc = smb_init(SMB_COM_NT_TRANSACT, 23, tcon, (void **) &pSMB, |
50c2f753 | 5397 | (void **) &pSMBr); |
1da177e4 LT |
5398 | if (rc) |
5399 | return rc; | |
5400 | ||
5401 | pSMB->TotalParameterCount = 0 ; | |
5402 | pSMB->TotalDataCount = 0; | |
5403 | pSMB->MaxParameterCount = cpu_to_le32(2); | |
5404 | /* BB find exact data count max from sess structure BB */ | |
5405 | pSMB->MaxDataCount = 0; /* same in little endian or be */ | |
0a4b92c0 SF |
5406 | /* BB VERIFY verify which is correct for above BB */ |
5407 | pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf - | |
5408 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
5409 | ||
1da177e4 LT |
5410 | pSMB->MaxSetupCount = 4; |
5411 | pSMB->Reserved = 0; | |
5412 | pSMB->ParameterOffset = 0; | |
5413 | pSMB->DataCount = 0; | |
5414 | pSMB->DataOffset = 0; | |
5415 | pSMB->SetupCount = 4; /* single byte does not need le conversion */ | |
5416 | pSMB->SubCommand = cpu_to_le16(NT_TRANSACT_NOTIFY_CHANGE); | |
5417 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
790fe579 | 5418 | if (notify_subdirs) |
1da177e4 LT |
5419 | pSMB->WatchTree = 1; /* one byte - no le conversion needed */ |
5420 | pSMB->Reserved2 = 0; | |
5421 | pSMB->CompletionFilter = cpu_to_le32(filter); | |
5422 | pSMB->Fid = netfid; /* file handle always le */ | |
5423 | pSMB->ByteCount = 0; | |
5424 | ||
5425 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
133672ef SF |
5426 | (struct smb_hdr *)pSMBr, &bytes_returned, |
5427 | CIFS_ASYNC_OP); | |
1da177e4 | 5428 | if (rc) { |
b6b38f70 | 5429 | cFYI(1, "Error in Notify = %d", rc); |
ff5dbd9e SF |
5430 | } else { |
5431 | /* Add file to outstanding requests */ | |
50c2f753 | 5432 | /* BB change to kmem cache alloc */ |
5cbded58 | 5433 | dnotify_req = kmalloc( |
47c786e7 SF |
5434 | sizeof(struct dir_notify_req), |
5435 | GFP_KERNEL); | |
790fe579 | 5436 | if (dnotify_req) { |
47c786e7 SF |
5437 | dnotify_req->Pid = pSMB->hdr.Pid; |
5438 | dnotify_req->PidHigh = pSMB->hdr.PidHigh; | |
5439 | dnotify_req->Mid = pSMB->hdr.Mid; | |
5440 | dnotify_req->Tid = pSMB->hdr.Tid; | |
5441 | dnotify_req->Uid = pSMB->hdr.Uid; | |
5442 | dnotify_req->netfid = netfid; | |
5443 | dnotify_req->pfile = pfile; | |
5444 | dnotify_req->filter = filter; | |
5445 | dnotify_req->multishot = multishot; | |
5446 | spin_lock(&GlobalMid_Lock); | |
50c2f753 | 5447 | list_add_tail(&dnotify_req->lhead, |
47c786e7 SF |
5448 | &GlobalDnotifyReqList); |
5449 | spin_unlock(&GlobalMid_Lock); | |
50c2f753 | 5450 | } else |
47c786e7 | 5451 | rc = -ENOMEM; |
1da177e4 LT |
5452 | } |
5453 | cifs_buf_release(pSMB); | |
50c2f753 | 5454 | return rc; |
1da177e4 | 5455 | } |
31c0519f | 5456 | |
1da177e4 | 5457 | #ifdef CONFIG_CIFS_XATTR |
31c0519f JL |
5458 | /* |
5459 | * Do a path-based QUERY_ALL_EAS call and parse the result. This is a common | |
5460 | * function used by listxattr and getxattr type calls. When ea_name is set, | |
5461 | * it looks for that attribute name and stuffs that value into the EAData | |
5462 | * buffer. When ea_name is NULL, it stuffs a list of attribute names into the | |
5463 | * buffer. In both cases, the return value is either the length of the | |
5464 | * resulting data or a negative error code. If EAData is a NULL pointer then | |
5465 | * the data isn't copied to it, but the length is returned. | |
5466 | */ | |
1da177e4 LT |
5467 | ssize_t |
5468 | CIFSSMBQAllEAs(const int xid, struct cifsTconInfo *tcon, | |
31c0519f JL |
5469 | const unsigned char *searchName, const unsigned char *ea_name, |
5470 | char *EAData, size_t buf_size, | |
5471 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
5472 | { |
5473 | /* BB assumes one setup word */ | |
5474 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
5475 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
5476 | int rc = 0; | |
5477 | int bytes_returned; | |
6e462b9f | 5478 | int list_len; |
f0d3868b | 5479 | struct fealist *ea_response_data; |
50c2f753 SF |
5480 | struct fea *temp_fea; |
5481 | char *temp_ptr; | |
0cd126b5 | 5482 | char *end_of_smb; |
f0d3868b | 5483 | __u16 params, byte_count, data_offset; |
1da177e4 | 5484 | |
b6b38f70 | 5485 | cFYI(1, "In Query All EAs path %s", searchName); |
1da177e4 LT |
5486 | QAllEAsRetry: |
5487 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
5488 | (void **) &pSMBr); | |
5489 | if (rc) | |
5490 | return rc; | |
5491 | ||
5492 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
6e462b9f | 5493 | list_len = |
50c2f753 | 5494 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 5495 | PATH_MAX, nls_codepage, remap); |
6e462b9f JL |
5496 | list_len++; /* trailing null */ |
5497 | list_len *= 2; | |
1da177e4 | 5498 | } else { /* BB improve the check for buffer overruns BB */ |
6e462b9f JL |
5499 | list_len = strnlen(searchName, PATH_MAX); |
5500 | list_len++; /* trailing null */ | |
5501 | strncpy(pSMB->FileName, searchName, list_len); | |
1da177e4 LT |
5502 | } |
5503 | ||
6e462b9f | 5504 | params = 2 /* level */ + 4 /* reserved */ + list_len /* includes NUL */; |
1da177e4 LT |
5505 | pSMB->TotalDataCount = 0; |
5506 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
582d21e5 | 5507 | /* BB find exact max SMB PDU from sess structure BB */ |
e529614a | 5508 | pSMB->MaxDataCount = cpu_to_le16(CIFSMaxBufSize); |
1da177e4 LT |
5509 | pSMB->MaxSetupCount = 0; |
5510 | pSMB->Reserved = 0; | |
5511 | pSMB->Flags = 0; | |
5512 | pSMB->Timeout = 0; | |
5513 | pSMB->Reserved2 = 0; | |
5514 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 5515 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
1da177e4 LT |
5516 | pSMB->DataCount = 0; |
5517 | pSMB->DataOffset = 0; | |
5518 | pSMB->SetupCount = 1; | |
5519 | pSMB->Reserved3 = 0; | |
5520 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
5521 | byte_count = params + 1 /* pad */ ; | |
5522 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
5523 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
5524 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_QUERY_ALL_EAS); | |
5525 | pSMB->Reserved4 = 0; | |
5526 | pSMB->hdr.smb_buf_length += byte_count; | |
5527 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
5528 | ||
5529 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
5530 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
5531 | if (rc) { | |
b6b38f70 | 5532 | cFYI(1, "Send error in QueryAllEAs = %d", rc); |
f0d3868b JL |
5533 | goto QAllEAsOut; |
5534 | } | |
1da177e4 | 5535 | |
f0d3868b JL |
5536 | |
5537 | /* BB also check enough total bytes returned */ | |
5538 | /* BB we need to improve the validity checking | |
5539 | of these trans2 responses */ | |
5540 | ||
5541 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
5542 | if (rc || (pSMBr->ByteCount < 4)) { | |
5543 | rc = -EIO; /* bad smb */ | |
5544 | goto QAllEAsOut; | |
5545 | } | |
5546 | ||
5547 | /* check that length of list is not more than bcc */ | |
5548 | /* check that each entry does not go beyond length | |
5549 | of list */ | |
5550 | /* check that each element of each entry does not | |
5551 | go beyond end of list */ | |
5552 | /* validate_trans2_offsets() */ | |
5553 | /* BB check if start of smb + data_offset > &bcc+ bcc */ | |
5554 | ||
5555 | data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
5556 | ea_response_data = (struct fealist *) | |
5557 | (((char *) &pSMBr->hdr.Protocol) + data_offset); | |
5558 | ||
6e462b9f | 5559 | list_len = le32_to_cpu(ea_response_data->list_len); |
b6b38f70 | 5560 | cFYI(1, "ea length %d", list_len); |
6e462b9f | 5561 | if (list_len <= 8) { |
b6b38f70 | 5562 | cFYI(1, "empty EA list returned from server"); |
f0d3868b JL |
5563 | goto QAllEAsOut; |
5564 | } | |
5565 | ||
0cd126b5 JL |
5566 | /* make sure list_len doesn't go past end of SMB */ |
5567 | end_of_smb = (char *)pByteArea(&pSMBr->hdr) + BCC(&pSMBr->hdr); | |
5568 | if ((char *)ea_response_data + list_len > end_of_smb) { | |
b6b38f70 | 5569 | cFYI(1, "EA list appears to go beyond SMB"); |
0cd126b5 JL |
5570 | rc = -EIO; |
5571 | goto QAllEAsOut; | |
5572 | } | |
5573 | ||
f0d3868b | 5574 | /* account for ea list len */ |
6e462b9f | 5575 | list_len -= 4; |
f0d3868b JL |
5576 | temp_fea = ea_response_data->list; |
5577 | temp_ptr = (char *)temp_fea; | |
6e462b9f | 5578 | while (list_len > 0) { |
122ca007 | 5579 | unsigned int name_len; |
f0d3868b | 5580 | __u16 value_len; |
0cd126b5 | 5581 | |
6e462b9f | 5582 | list_len -= 4; |
f0d3868b | 5583 | temp_ptr += 4; |
0cd126b5 JL |
5584 | /* make sure we can read name_len and value_len */ |
5585 | if (list_len < 0) { | |
b6b38f70 | 5586 | cFYI(1, "EA entry goes beyond length of list"); |
0cd126b5 JL |
5587 | rc = -EIO; |
5588 | goto QAllEAsOut; | |
5589 | } | |
5590 | ||
5591 | name_len = temp_fea->name_len; | |
5592 | value_len = le16_to_cpu(temp_fea->value_len); | |
5593 | list_len -= name_len + 1 + value_len; | |
5594 | if (list_len < 0) { | |
b6b38f70 | 5595 | cFYI(1, "EA entry goes beyond length of list"); |
0cd126b5 JL |
5596 | rc = -EIO; |
5597 | goto QAllEAsOut; | |
5598 | } | |
5599 | ||
31c0519f JL |
5600 | if (ea_name) { |
5601 | if (strncmp(ea_name, temp_ptr, name_len) == 0) { | |
5602 | temp_ptr += name_len + 1; | |
5603 | rc = value_len; | |
5604 | if (buf_size == 0) | |
5605 | goto QAllEAsOut; | |
5606 | if ((size_t)value_len > buf_size) { | |
5607 | rc = -ERANGE; | |
5608 | goto QAllEAsOut; | |
5609 | } | |
5610 | memcpy(EAData, temp_ptr, value_len); | |
5611 | goto QAllEAsOut; | |
5612 | } | |
f0d3868b | 5613 | } else { |
31c0519f JL |
5614 | /* account for prefix user. and trailing null */ |
5615 | rc += (5 + 1 + name_len); | |
5616 | if (rc < (int) buf_size) { | |
5617 | memcpy(EAData, "user.", 5); | |
5618 | EAData += 5; | |
5619 | memcpy(EAData, temp_ptr, name_len); | |
5620 | EAData += name_len; | |
5621 | /* null terminate name */ | |
5622 | *EAData = 0; | |
5623 | ++EAData; | |
5624 | } else if (buf_size == 0) { | |
5625 | /* skip copy - calc size only */ | |
5626 | } else { | |
5627 | /* stop before overrun buffer */ | |
5628 | rc = -ERANGE; | |
5629 | break; | |
5630 | } | |
1da177e4 | 5631 | } |
0cd126b5 | 5632 | temp_ptr += name_len + 1 + value_len; |
f0d3868b | 5633 | temp_fea = (struct fea *)temp_ptr; |
1da177e4 | 5634 | } |
f0d3868b | 5635 | |
31c0519f JL |
5636 | /* didn't find the named attribute */ |
5637 | if (ea_name) | |
5638 | rc = -ENODATA; | |
5639 | ||
f0d3868b | 5640 | QAllEAsOut: |
0d817bc0 | 5641 | cifs_buf_release(pSMB); |
1da177e4 LT |
5642 | if (rc == -EAGAIN) |
5643 | goto QAllEAsRetry; | |
5644 | ||
5645 | return (ssize_t)rc; | |
5646 | } | |
5647 | ||
1da177e4 LT |
5648 | int |
5649 | CIFSSMBSetEA(const int xid, struct cifsTconInfo *tcon, const char *fileName, | |
50c2f753 SF |
5650 | const char *ea_name, const void *ea_value, |
5651 | const __u16 ea_value_len, const struct nls_table *nls_codepage, | |
5652 | int remap) | |
1da177e4 LT |
5653 | { |
5654 | struct smb_com_transaction2_spi_req *pSMB = NULL; | |
5655 | struct smb_com_transaction2_spi_rsp *pSMBr = NULL; | |
5656 | struct fealist *parm_data; | |
5657 | int name_len; | |
5658 | int rc = 0; | |
5659 | int bytes_returned = 0; | |
5660 | __u16 params, param_offset, byte_count, offset, count; | |
5661 | ||
b6b38f70 | 5662 | cFYI(1, "In SetEA"); |
1da177e4 LT |
5663 | SetEARetry: |
5664 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
5665 | (void **) &pSMBr); | |
5666 | if (rc) | |
5667 | return rc; | |
5668 | ||
5669 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
5670 | name_len = | |
50c2f753 | 5671 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 5672 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
5673 | name_len++; /* trailing null */ |
5674 | name_len *= 2; | |
50c2f753 | 5675 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
5676 | name_len = strnlen(fileName, PATH_MAX); |
5677 | name_len++; /* trailing null */ | |
5678 | strncpy(pSMB->FileName, fileName, name_len); | |
5679 | } | |
5680 | ||
5681 | params = 6 + name_len; | |
5682 | ||
5683 | /* done calculating parms using name_len of file name, | |
5684 | now use name_len to calculate length of ea name | |
5685 | we are going to create in the inode xattrs */ | |
790fe579 | 5686 | if (ea_name == NULL) |
1da177e4 LT |
5687 | name_len = 0; |
5688 | else | |
50c2f753 | 5689 | name_len = strnlen(ea_name, 255); |
1da177e4 | 5690 | |
dae5dbdb | 5691 | count = sizeof(*parm_data) + ea_value_len + name_len; |
1da177e4 | 5692 | pSMB->MaxParameterCount = cpu_to_le16(2); |
582d21e5 SF |
5693 | /* BB find max SMB PDU from sess */ |
5694 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1da177e4 LT |
5695 | pSMB->MaxSetupCount = 0; |
5696 | pSMB->Reserved = 0; | |
5697 | pSMB->Flags = 0; | |
5698 | pSMB->Timeout = 0; | |
5699 | pSMB->Reserved2 = 0; | |
5700 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 5701 | InformationLevel) - 4; |
1da177e4 LT |
5702 | offset = param_offset + params; |
5703 | pSMB->InformationLevel = | |
5704 | cpu_to_le16(SMB_SET_FILE_EA); | |
5705 | ||
5706 | parm_data = | |
5707 | (struct fealist *) (((char *) &pSMB->hdr.Protocol) + | |
5708 | offset); | |
5709 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
5710 | pSMB->DataOffset = cpu_to_le16(offset); | |
5711 | pSMB->SetupCount = 1; | |
5712 | pSMB->Reserved3 = 0; | |
5713 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
5714 | byte_count = 3 /* pad */ + params + count; | |
5715 | pSMB->DataCount = cpu_to_le16(count); | |
5716 | parm_data->list_len = cpu_to_le32(count); | |
5717 | parm_data->list[0].EA_flags = 0; | |
5718 | /* we checked above that name len is less than 255 */ | |
53b3531b | 5719 | parm_data->list[0].name_len = (__u8)name_len; |
1da177e4 | 5720 | /* EA names are always ASCII */ |
790fe579 | 5721 | if (ea_name) |
50c2f753 | 5722 | strncpy(parm_data->list[0].name, ea_name, name_len); |
1da177e4 LT |
5723 | parm_data->list[0].name[name_len] = 0; |
5724 | parm_data->list[0].value_len = cpu_to_le16(ea_value_len); | |
5725 | /* caller ensures that ea_value_len is less than 64K but | |
5726 | we need to ensure that it fits within the smb */ | |
5727 | ||
50c2f753 SF |
5728 | /*BB add length check to see if it would fit in |
5729 | negotiated SMB buffer size BB */ | |
790fe579 SF |
5730 | /* if (ea_value_len > buffer_size - 512 (enough for header)) */ |
5731 | if (ea_value_len) | |
50c2f753 SF |
5732 | memcpy(parm_data->list[0].name+name_len+1, |
5733 | ea_value, ea_value_len); | |
1da177e4 LT |
5734 | |
5735 | pSMB->TotalDataCount = pSMB->DataCount; | |
5736 | pSMB->ParameterCount = cpu_to_le16(params); | |
5737 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
5738 | pSMB->Reserved4 = 0; | |
5739 | pSMB->hdr.smb_buf_length += byte_count; | |
5740 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
5741 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
5742 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
ad7a2926 | 5743 | if (rc) |
b6b38f70 | 5744 | cFYI(1, "SetPathInfo (EA) returned %d", rc); |
1da177e4 LT |
5745 | |
5746 | cifs_buf_release(pSMB); | |
5747 | ||
5748 | if (rc == -EAGAIN) | |
5749 | goto SetEARetry; | |
5750 | ||
5751 | return rc; | |
5752 | } | |
5753 | ||
5754 | #endif |