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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)) { |
254e55ed SF |
506 | memcpy(server->cryptKey, rsp->EncryptionKey, |
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 SF |
576 | if (pSMBr->EncryptionKeyLength == CIFS_CRYPTO_KEY_SIZE) { |
577 | memcpy(server->cryptKey, pSMBr->u.EncryptionKey, | |
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; |
26efa0ba | 623 | |
c8e56f1f SF |
624 | if (server->sec_kerberos || server->sec_mskerberos) |
625 | server->secType = Kerberos; | |
626 | else if (server->sec_ntlmssp) | |
627 | server->secType = RawNTLMSSP; | |
628 | else | |
26efa0ba | 629 | rc = -EOPNOTSUPP; |
1da177e4 | 630 | } |
254e55ed SF |
631 | } else |
632 | server->capabilities &= ~CAP_EXTENDED_SECURITY; | |
633 | ||
6344a423 | 634 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
254e55ed | 635 | signing_check: |
6344a423 | 636 | #endif |
762e5ab7 SF |
637 | if ((secFlags & CIFSSEC_MAY_SIGN) == 0) { |
638 | /* MUST_SIGN already includes the MAY_SIGN FLAG | |
639 | so if this is zero it means that signing is disabled */ | |
b6b38f70 | 640 | cFYI(1, "Signing disabled"); |
abb63d6c | 641 | if (server->secMode & SECMODE_SIGN_REQUIRED) { |
b6b38f70 | 642 | cERROR(1, "Server requires " |
7111d214 | 643 | "packet signing to be enabled in " |
b6b38f70 | 644 | "/proc/fs/cifs/SecurityFlags."); |
abb63d6c SF |
645 | rc = -EOPNOTSUPP; |
646 | } | |
50c2f753 | 647 | server->secMode &= |
254e55ed | 648 | ~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED); |
762e5ab7 SF |
649 | } else if ((secFlags & CIFSSEC_MUST_SIGN) == CIFSSEC_MUST_SIGN) { |
650 | /* signing required */ | |
b6b38f70 | 651 | cFYI(1, "Must sign - secFlags 0x%x", secFlags); |
762e5ab7 SF |
652 | if ((server->secMode & |
653 | (SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED)) == 0) { | |
b6b38f70 | 654 | cERROR(1, "signing required but server lacks support"); |
38c10a1d | 655 | rc = -EOPNOTSUPP; |
762e5ab7 SF |
656 | } else |
657 | server->secMode |= SECMODE_SIGN_REQUIRED; | |
658 | } else { | |
659 | /* signing optional ie CIFSSEC_MAY_SIGN */ | |
790fe579 | 660 | if ((server->secMode & SECMODE_SIGN_REQUIRED) == 0) |
50c2f753 | 661 | server->secMode &= |
254e55ed | 662 | ~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED); |
1da177e4 | 663 | } |
50c2f753 SF |
664 | |
665 | neg_err_exit: | |
4a6d87f1 | 666 | cifs_buf_release(pSMB); |
254e55ed | 667 | |
b6b38f70 | 668 | cFYI(1, "negprot rc %d", rc); |
1da177e4 LT |
669 | return rc; |
670 | } | |
671 | ||
672 | int | |
673 | CIFSSMBTDis(const int xid, struct cifsTconInfo *tcon) | |
674 | { | |
675 | struct smb_hdr *smb_buffer; | |
1da177e4 | 676 | int rc = 0; |
1da177e4 | 677 | |
b6b38f70 | 678 | cFYI(1, "In tree disconnect"); |
1da177e4 | 679 | |
f1987b44 JL |
680 | /* BB: do we need to check this? These should never be NULL. */ |
681 | if ((tcon->ses == NULL) || (tcon->ses->server == NULL)) | |
682 | return -EIO; | |
1da177e4 | 683 | |
f1987b44 JL |
684 | /* |
685 | * No need to return error on this operation if tid invalidated and | |
686 | * closed on server already e.g. due to tcp session crashing. Also, | |
687 | * the tcon is no longer on the list, so no need to take lock before | |
688 | * checking this. | |
689 | */ | |
268875b9 | 690 | if ((tcon->need_reconnect) || (tcon->ses->need_reconnect)) |
50c2f753 | 691 | return 0; |
1da177e4 | 692 | |
50c2f753 | 693 | rc = small_smb_init(SMB_COM_TREE_DISCONNECT, 0, tcon, |
09d1db5c | 694 | (void **)&smb_buffer); |
f1987b44 | 695 | if (rc) |
1da177e4 | 696 | return rc; |
133672ef SF |
697 | |
698 | rc = SendReceiveNoRsp(xid, tcon->ses, smb_buffer, 0); | |
1da177e4 | 699 | if (rc) |
b6b38f70 | 700 | cFYI(1, "Tree disconnect failed %d", rc); |
1da177e4 | 701 | |
50c2f753 | 702 | /* No need to return error on this operation if tid invalidated and |
f1987b44 | 703 | closed on server already e.g. due to tcp session crashing */ |
1da177e4 LT |
704 | if (rc == -EAGAIN) |
705 | rc = 0; | |
706 | ||
707 | return rc; | |
708 | } | |
709 | ||
710 | int | |
711 | CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses) | |
712 | { | |
1da177e4 LT |
713 | LOGOFF_ANDX_REQ *pSMB; |
714 | int rc = 0; | |
1da177e4 | 715 | |
b6b38f70 | 716 | cFYI(1, "In SMBLogoff for session disconnect"); |
3b795210 | 717 | |
14fbf50d JL |
718 | /* |
719 | * BB: do we need to check validity of ses and server? They should | |
720 | * always be valid since we have an active reference. If not, that | |
721 | * should probably be a BUG() | |
722 | */ | |
723 | if (!ses || !ses->server) | |
3b795210 SF |
724 | return -EIO; |
725 | ||
d7b619cf | 726 | mutex_lock(&ses->session_mutex); |
3b795210 SF |
727 | if (ses->need_reconnect) |
728 | goto session_already_dead; /* no need to send SMBlogoff if uid | |
729 | already closed due to reconnect */ | |
1da177e4 LT |
730 | rc = small_smb_init(SMB_COM_LOGOFF_ANDX, 2, NULL, (void **)&pSMB); |
731 | if (rc) { | |
d7b619cf | 732 | mutex_unlock(&ses->session_mutex); |
1da177e4 LT |
733 | return rc; |
734 | } | |
735 | ||
3b795210 | 736 | pSMB->hdr.Mid = GetNextMid(ses->server); |
1982c344 | 737 | |
3b795210 | 738 | if (ses->server->secMode & |
1da177e4 LT |
739 | (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) |
740 | pSMB->hdr.Flags2 |= SMBFLG2_SECURITY_SIGNATURE; | |
1da177e4 LT |
741 | |
742 | pSMB->hdr.Uid = ses->Suid; | |
743 | ||
744 | pSMB->AndXCommand = 0xFF; | |
133672ef | 745 | rc = SendReceiveNoRsp(xid, ses, (struct smb_hdr *) pSMB, 0); |
3b795210 | 746 | session_already_dead: |
d7b619cf | 747 | mutex_unlock(&ses->session_mutex); |
1da177e4 LT |
748 | |
749 | /* if session dead then we do not need to do ulogoff, | |
50c2f753 | 750 | since server closed smb session, no sense reporting |
1da177e4 LT |
751 | error */ |
752 | if (rc == -EAGAIN) | |
753 | rc = 0; | |
754 | return rc; | |
755 | } | |
756 | ||
2d785a50 SF |
757 | int |
758 | CIFSPOSIXDelFile(const int xid, struct cifsTconInfo *tcon, const char *fileName, | |
759 | __u16 type, const struct nls_table *nls_codepage, int remap) | |
760 | { | |
761 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
762 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
763 | struct unlink_psx_rq *pRqD; | |
764 | int name_len; | |
765 | int rc = 0; | |
766 | int bytes_returned = 0; | |
767 | __u16 params, param_offset, offset, byte_count; | |
768 | ||
b6b38f70 | 769 | cFYI(1, "In POSIX delete"); |
2d785a50 SF |
770 | PsxDelete: |
771 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
772 | (void **) &pSMBr); | |
773 | if (rc) | |
774 | return rc; | |
775 | ||
776 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
777 | name_len = | |
778 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, | |
779 | PATH_MAX, nls_codepage, remap); | |
780 | name_len++; /* trailing null */ | |
781 | name_len *= 2; | |
782 | } else { /* BB add path length overrun check */ | |
783 | name_len = strnlen(fileName, PATH_MAX); | |
784 | name_len++; /* trailing null */ | |
785 | strncpy(pSMB->FileName, fileName, name_len); | |
786 | } | |
787 | ||
788 | params = 6 + name_len; | |
789 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
790 | pSMB->MaxDataCount = 0; /* BB double check this with jra */ | |
791 | pSMB->MaxSetupCount = 0; | |
792 | pSMB->Reserved = 0; | |
793 | pSMB->Flags = 0; | |
794 | pSMB->Timeout = 0; | |
795 | pSMB->Reserved2 = 0; | |
796 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
797 | InformationLevel) - 4; | |
798 | offset = param_offset + params; | |
799 | ||
800 | /* Setup pointer to Request Data (inode type) */ | |
801 | pRqD = (struct unlink_psx_rq *)(((char *)&pSMB->hdr.Protocol) + offset); | |
802 | pRqD->type = cpu_to_le16(type); | |
803 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
804 | pSMB->DataOffset = cpu_to_le16(offset); | |
805 | pSMB->SetupCount = 1; | |
806 | pSMB->Reserved3 = 0; | |
807 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
808 | byte_count = 3 /* pad */ + params + sizeof(struct unlink_psx_rq); | |
809 | ||
810 | pSMB->DataCount = cpu_to_le16(sizeof(struct unlink_psx_rq)); | |
811 | pSMB->TotalDataCount = cpu_to_le16(sizeof(struct unlink_psx_rq)); | |
812 | pSMB->ParameterCount = cpu_to_le16(params); | |
813 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
814 | pSMB->InformationLevel = cpu_to_le16(SMB_POSIX_UNLINK); | |
815 | pSMB->Reserved4 = 0; | |
816 | pSMB->hdr.smb_buf_length += byte_count; | |
817 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
818 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
819 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
ad7a2926 | 820 | if (rc) |
b6b38f70 | 821 | cFYI(1, "Posix delete returned %d", rc); |
2d785a50 SF |
822 | cifs_buf_release(pSMB); |
823 | ||
824 | cifs_stats_inc(&tcon->num_deletes); | |
825 | ||
826 | if (rc == -EAGAIN) | |
827 | goto PsxDelete; | |
828 | ||
829 | return rc; | |
830 | } | |
831 | ||
1da177e4 | 832 | int |
737b758c SF |
833 | CIFSSMBDelFile(const int xid, struct cifsTconInfo *tcon, const char *fileName, |
834 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
835 | { |
836 | DELETE_FILE_REQ *pSMB = NULL; | |
837 | DELETE_FILE_RSP *pSMBr = NULL; | |
838 | int rc = 0; | |
839 | int bytes_returned; | |
840 | int name_len; | |
841 | ||
842 | DelFileRetry: | |
843 | rc = smb_init(SMB_COM_DELETE, 1, tcon, (void **) &pSMB, | |
844 | (void **) &pSMBr); | |
845 | if (rc) | |
846 | return rc; | |
847 | ||
848 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
849 | name_len = | |
50c2f753 | 850 | cifsConvertToUCS((__le16 *) pSMB->fileName, fileName, |
737b758c | 851 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
852 | name_len++; /* trailing null */ |
853 | name_len *= 2; | |
09d1db5c | 854 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
855 | name_len = strnlen(fileName, PATH_MAX); |
856 | name_len++; /* trailing null */ | |
857 | strncpy(pSMB->fileName, fileName, name_len); | |
858 | } | |
859 | pSMB->SearchAttributes = | |
860 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM); | |
861 | pSMB->BufferFormat = 0x04; | |
862 | pSMB->hdr.smb_buf_length += name_len + 1; | |
863 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
864 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
865 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 866 | cifs_stats_inc(&tcon->num_deletes); |
ad7a2926 | 867 | if (rc) |
b6b38f70 | 868 | cFYI(1, "Error in RMFile = %d", rc); |
1da177e4 LT |
869 | |
870 | cifs_buf_release(pSMB); | |
871 | if (rc == -EAGAIN) | |
872 | goto DelFileRetry; | |
873 | ||
874 | return rc; | |
875 | } | |
876 | ||
877 | int | |
50c2f753 | 878 | CIFSSMBRmDir(const int xid, struct cifsTconInfo *tcon, const char *dirName, |
737b758c | 879 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
880 | { |
881 | DELETE_DIRECTORY_REQ *pSMB = NULL; | |
882 | DELETE_DIRECTORY_RSP *pSMBr = NULL; | |
883 | int rc = 0; | |
884 | int bytes_returned; | |
885 | int name_len; | |
886 | ||
b6b38f70 | 887 | cFYI(1, "In CIFSSMBRmDir"); |
1da177e4 LT |
888 | RmDirRetry: |
889 | rc = smb_init(SMB_COM_DELETE_DIRECTORY, 0, tcon, (void **) &pSMB, | |
890 | (void **) &pSMBr); | |
891 | if (rc) | |
892 | return rc; | |
893 | ||
894 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
737b758c SF |
895 | name_len = cifsConvertToUCS((__le16 *) pSMB->DirName, dirName, |
896 | PATH_MAX, nls_codepage, remap); | |
1da177e4 LT |
897 | name_len++; /* trailing null */ |
898 | name_len *= 2; | |
09d1db5c | 899 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
900 | name_len = strnlen(dirName, PATH_MAX); |
901 | name_len++; /* trailing null */ | |
902 | strncpy(pSMB->DirName, dirName, name_len); | |
903 | } | |
904 | ||
905 | pSMB->BufferFormat = 0x04; | |
906 | pSMB->hdr.smb_buf_length += name_len + 1; | |
907 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
908 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
909 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 910 | cifs_stats_inc(&tcon->num_rmdirs); |
ad7a2926 | 911 | if (rc) |
b6b38f70 | 912 | cFYI(1, "Error in RMDir = %d", rc); |
1da177e4 LT |
913 | |
914 | cifs_buf_release(pSMB); | |
915 | if (rc == -EAGAIN) | |
916 | goto RmDirRetry; | |
917 | return rc; | |
918 | } | |
919 | ||
920 | int | |
921 | CIFSSMBMkDir(const int xid, struct cifsTconInfo *tcon, | |
737b758c | 922 | const char *name, const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
923 | { |
924 | int rc = 0; | |
925 | CREATE_DIRECTORY_REQ *pSMB = NULL; | |
926 | CREATE_DIRECTORY_RSP *pSMBr = NULL; | |
927 | int bytes_returned; | |
928 | int name_len; | |
929 | ||
b6b38f70 | 930 | cFYI(1, "In CIFSSMBMkDir"); |
1da177e4 LT |
931 | MkDirRetry: |
932 | rc = smb_init(SMB_COM_CREATE_DIRECTORY, 0, tcon, (void **) &pSMB, | |
933 | (void **) &pSMBr); | |
934 | if (rc) | |
935 | return rc; | |
936 | ||
937 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
50c2f753 | 938 | name_len = cifsConvertToUCS((__le16 *) pSMB->DirName, name, |
737b758c | 939 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
940 | name_len++; /* trailing null */ |
941 | name_len *= 2; | |
09d1db5c | 942 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
943 | name_len = strnlen(name, PATH_MAX); |
944 | name_len++; /* trailing null */ | |
945 | strncpy(pSMB->DirName, name, name_len); | |
946 | } | |
947 | ||
948 | pSMB->BufferFormat = 0x04; | |
949 | pSMB->hdr.smb_buf_length += name_len + 1; | |
950 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
951 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
952 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 953 | cifs_stats_inc(&tcon->num_mkdirs); |
ad7a2926 | 954 | if (rc) |
b6b38f70 | 955 | cFYI(1, "Error in Mkdir = %d", rc); |
a5a2b489 | 956 | |
1da177e4 LT |
957 | cifs_buf_release(pSMB); |
958 | if (rc == -EAGAIN) | |
959 | goto MkDirRetry; | |
960 | return rc; | |
961 | } | |
962 | ||
2dd29d31 SF |
963 | int |
964 | CIFSPOSIXCreate(const int xid, struct cifsTconInfo *tcon, __u32 posix_flags, | |
ad7a2926 | 965 | __u64 mode, __u16 *netfid, FILE_UNIX_BASIC_INFO *pRetData, |
50c2f753 | 966 | __u32 *pOplock, const char *name, |
2dd29d31 SF |
967 | const struct nls_table *nls_codepage, int remap) |
968 | { | |
969 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
970 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
971 | int name_len; | |
972 | int rc = 0; | |
973 | int bytes_returned = 0; | |
2dd29d31 | 974 | __u16 params, param_offset, offset, byte_count, count; |
ad7a2926 SF |
975 | OPEN_PSX_REQ *pdata; |
976 | OPEN_PSX_RSP *psx_rsp; | |
2dd29d31 | 977 | |
b6b38f70 | 978 | cFYI(1, "In POSIX Create"); |
2dd29d31 SF |
979 | PsxCreat: |
980 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
981 | (void **) &pSMBr); | |
982 | if (rc) | |
983 | return rc; | |
984 | ||
985 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
986 | name_len = | |
987 | cifsConvertToUCS((__le16 *) pSMB->FileName, name, | |
988 | PATH_MAX, nls_codepage, remap); | |
989 | name_len++; /* trailing null */ | |
990 | name_len *= 2; | |
991 | } else { /* BB improve the check for buffer overruns BB */ | |
992 | name_len = strnlen(name, PATH_MAX); | |
993 | name_len++; /* trailing null */ | |
994 | strncpy(pSMB->FileName, name, name_len); | |
995 | } | |
996 | ||
997 | params = 6 + name_len; | |
998 | count = sizeof(OPEN_PSX_REQ); | |
999 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
1000 | pSMB->MaxDataCount = cpu_to_le16(1000); /* large enough */ | |
1001 | pSMB->MaxSetupCount = 0; | |
1002 | pSMB->Reserved = 0; | |
1003 | pSMB->Flags = 0; | |
1004 | pSMB->Timeout = 0; | |
1005 | pSMB->Reserved2 = 0; | |
1006 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 1007 | InformationLevel) - 4; |
2dd29d31 | 1008 | offset = param_offset + params; |
2dd29d31 | 1009 | pdata = (OPEN_PSX_REQ *)(((char *)&pSMB->hdr.Protocol) + offset); |
8f2376ad | 1010 | pdata->Level = cpu_to_le16(SMB_QUERY_FILE_UNIX_BASIC); |
2dd29d31 | 1011 | pdata->Permissions = cpu_to_le64(mode); |
50c2f753 | 1012 | pdata->PosixOpenFlags = cpu_to_le32(posix_flags); |
2dd29d31 SF |
1013 | pdata->OpenFlags = cpu_to_le32(*pOplock); |
1014 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
1015 | pSMB->DataOffset = cpu_to_le16(offset); | |
1016 | pSMB->SetupCount = 1; | |
1017 | pSMB->Reserved3 = 0; | |
1018 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
1019 | byte_count = 3 /* pad */ + params + count; | |
1020 | ||
1021 | pSMB->DataCount = cpu_to_le16(count); | |
1022 | pSMB->ParameterCount = cpu_to_le16(params); | |
1023 | pSMB->TotalDataCount = pSMB->DataCount; | |
1024 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
1025 | pSMB->InformationLevel = cpu_to_le16(SMB_POSIX_OPEN); | |
1026 | pSMB->Reserved4 = 0; | |
50c2f753 | 1027 | pSMB->hdr.smb_buf_length += byte_count; |
2dd29d31 SF |
1028 | pSMB->ByteCount = cpu_to_le16(byte_count); |
1029 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1030 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
1031 | if (rc) { | |
b6b38f70 | 1032 | cFYI(1, "Posix create returned %d", rc); |
2dd29d31 SF |
1033 | goto psx_create_err; |
1034 | } | |
1035 | ||
b6b38f70 | 1036 | cFYI(1, "copying inode info"); |
2dd29d31 SF |
1037 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
1038 | ||
1039 | if (rc || (pSMBr->ByteCount < sizeof(OPEN_PSX_RSP))) { | |
1040 | rc = -EIO; /* bad smb */ | |
1041 | goto psx_create_err; | |
1042 | } | |
1043 | ||
1044 | /* copy return information to pRetData */ | |
50c2f753 | 1045 | psx_rsp = (OPEN_PSX_RSP *)((char *) &pSMBr->hdr.Protocol |
2dd29d31 | 1046 | + le16_to_cpu(pSMBr->t2.DataOffset)); |
50c2f753 | 1047 | |
2dd29d31 | 1048 | *pOplock = le16_to_cpu(psx_rsp->OplockFlags); |
790fe579 | 1049 | if (netfid) |
2dd29d31 SF |
1050 | *netfid = psx_rsp->Fid; /* cifs fid stays in le */ |
1051 | /* Let caller know file was created so we can set the mode. */ | |
1052 | /* Do we care about the CreateAction in any other cases? */ | |
790fe579 | 1053 | if (cpu_to_le32(FILE_CREATE) == psx_rsp->CreateAction) |
2dd29d31 SF |
1054 | *pOplock |= CIFS_CREATE_ACTION; |
1055 | /* check to make sure response data is there */ | |
8f2376ad CG |
1056 | if (psx_rsp->ReturnedLevel != cpu_to_le16(SMB_QUERY_FILE_UNIX_BASIC)) { |
1057 | pRetData->Type = cpu_to_le32(-1); /* unknown */ | |
b6b38f70 | 1058 | cFYI(DBG2, "unknown type"); |
cbac3cba | 1059 | } else { |
790fe579 | 1060 | if (pSMBr->ByteCount < sizeof(OPEN_PSX_RSP) |
2dd29d31 | 1061 | + sizeof(FILE_UNIX_BASIC_INFO)) { |
b6b38f70 | 1062 | cERROR(1, "Open response data too small"); |
8f2376ad | 1063 | pRetData->Type = cpu_to_le32(-1); |
2dd29d31 SF |
1064 | goto psx_create_err; |
1065 | } | |
50c2f753 | 1066 | memcpy((char *) pRetData, |
cbac3cba | 1067 | (char *)psx_rsp + sizeof(OPEN_PSX_RSP), |
26f57364 | 1068 | sizeof(FILE_UNIX_BASIC_INFO)); |
2dd29d31 | 1069 | } |
2dd29d31 SF |
1070 | |
1071 | psx_create_err: | |
1072 | cifs_buf_release(pSMB); | |
1073 | ||
65bc98b0 SF |
1074 | if (posix_flags & SMB_O_DIRECTORY) |
1075 | cifs_stats_inc(&tcon->num_posixmkdirs); | |
1076 | else | |
1077 | cifs_stats_inc(&tcon->num_posixopens); | |
2dd29d31 SF |
1078 | |
1079 | if (rc == -EAGAIN) | |
1080 | goto PsxCreat; | |
1081 | ||
50c2f753 | 1082 | return rc; |
2dd29d31 SF |
1083 | } |
1084 | ||
a9d02ad4 SF |
1085 | static __u16 convert_disposition(int disposition) |
1086 | { | |
1087 | __u16 ofun = 0; | |
1088 | ||
1089 | switch (disposition) { | |
1090 | case FILE_SUPERSEDE: | |
1091 | ofun = SMBOPEN_OCREATE | SMBOPEN_OTRUNC; | |
1092 | break; | |
1093 | case FILE_OPEN: | |
1094 | ofun = SMBOPEN_OAPPEND; | |
1095 | break; | |
1096 | case FILE_CREATE: | |
1097 | ofun = SMBOPEN_OCREATE; | |
1098 | break; | |
1099 | case FILE_OPEN_IF: | |
1100 | ofun = SMBOPEN_OCREATE | SMBOPEN_OAPPEND; | |
1101 | break; | |
1102 | case FILE_OVERWRITE: | |
1103 | ofun = SMBOPEN_OTRUNC; | |
1104 | break; | |
1105 | case FILE_OVERWRITE_IF: | |
1106 | ofun = SMBOPEN_OCREATE | SMBOPEN_OTRUNC; | |
1107 | break; | |
1108 | default: | |
b6b38f70 | 1109 | cFYI(1, "unknown disposition %d", disposition); |
a9d02ad4 SF |
1110 | ofun = SMBOPEN_OAPPEND; /* regular open */ |
1111 | } | |
1112 | return ofun; | |
1113 | } | |
1114 | ||
35fc37d5 JL |
1115 | static int |
1116 | access_flags_to_smbopen_mode(const int access_flags) | |
1117 | { | |
1118 | int masked_flags = access_flags & (GENERIC_READ | GENERIC_WRITE); | |
1119 | ||
1120 | if (masked_flags == GENERIC_READ) | |
1121 | return SMBOPEN_READ; | |
1122 | else if (masked_flags == GENERIC_WRITE) | |
1123 | return SMBOPEN_WRITE; | |
1124 | ||
1125 | /* just go for read/write */ | |
1126 | return SMBOPEN_READWRITE; | |
1127 | } | |
1128 | ||
a9d02ad4 SF |
1129 | int |
1130 | SMBLegacyOpen(const int xid, struct cifsTconInfo *tcon, | |
1131 | const char *fileName, const int openDisposition, | |
ad7a2926 SF |
1132 | const int access_flags, const int create_options, __u16 *netfid, |
1133 | int *pOplock, FILE_ALL_INFO *pfile_info, | |
a9d02ad4 SF |
1134 | const struct nls_table *nls_codepage, int remap) |
1135 | { | |
1136 | int rc = -EACCES; | |
1137 | OPENX_REQ *pSMB = NULL; | |
1138 | OPENX_RSP *pSMBr = NULL; | |
1139 | int bytes_returned; | |
1140 | int name_len; | |
1141 | __u16 count; | |
1142 | ||
1143 | OldOpenRetry: | |
1144 | rc = smb_init(SMB_COM_OPEN_ANDX, 15, tcon, (void **) &pSMB, | |
1145 | (void **) &pSMBr); | |
1146 | if (rc) | |
1147 | return rc; | |
1148 | ||
1149 | pSMB->AndXCommand = 0xFF; /* none */ | |
1150 | ||
1151 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1152 | count = 1; /* account for one byte pad to word boundary */ | |
1153 | name_len = | |
1154 | cifsConvertToUCS((__le16 *) (pSMB->fileName + 1), | |
1155 | fileName, PATH_MAX, nls_codepage, remap); | |
1156 | name_len++; /* trailing null */ | |
1157 | name_len *= 2; | |
1158 | } else { /* BB improve check for buffer overruns BB */ | |
1159 | count = 0; /* no pad */ | |
1160 | name_len = strnlen(fileName, PATH_MAX); | |
1161 | name_len++; /* trailing null */ | |
1162 | strncpy(pSMB->fileName, fileName, name_len); | |
1163 | } | |
1164 | if (*pOplock & REQ_OPLOCK) | |
1165 | pSMB->OpenFlags = cpu_to_le16(REQ_OPLOCK); | |
26f57364 | 1166 | else if (*pOplock & REQ_BATCHOPLOCK) |
a9d02ad4 | 1167 | pSMB->OpenFlags = cpu_to_le16(REQ_BATCHOPLOCK); |
26f57364 | 1168 | |
a9d02ad4 | 1169 | pSMB->OpenFlags |= cpu_to_le16(REQ_MORE_INFO); |
35fc37d5 | 1170 | pSMB->Mode = cpu_to_le16(access_flags_to_smbopen_mode(access_flags)); |
a9d02ad4 SF |
1171 | pSMB->Mode |= cpu_to_le16(0x40); /* deny none */ |
1172 | /* set file as system file if special file such | |
1173 | as fifo and server expecting SFU style and | |
1174 | no Unix extensions */ | |
1175 | ||
790fe579 SF |
1176 | if (create_options & CREATE_OPTION_SPECIAL) |
1177 | pSMB->FileAttributes = cpu_to_le16(ATTR_SYSTEM); | |
ad7a2926 SF |
1178 | else /* BB FIXME BB */ |
1179 | pSMB->FileAttributes = cpu_to_le16(0/*ATTR_NORMAL*/); | |
a9d02ad4 | 1180 | |
67750fb9 JL |
1181 | if (create_options & CREATE_OPTION_READONLY) |
1182 | pSMB->FileAttributes |= cpu_to_le16(ATTR_READONLY); | |
a9d02ad4 SF |
1183 | |
1184 | /* BB FIXME BB */ | |
50c2f753 SF |
1185 | /* pSMB->CreateOptions = cpu_to_le32(create_options & |
1186 | CREATE_OPTIONS_MASK); */ | |
a9d02ad4 | 1187 | /* BB FIXME END BB */ |
3e87d803 SF |
1188 | |
1189 | pSMB->Sattr = cpu_to_le16(ATTR_HIDDEN | ATTR_SYSTEM | ATTR_DIRECTORY); | |
70ca734a | 1190 | pSMB->OpenFunction = cpu_to_le16(convert_disposition(openDisposition)); |
a9d02ad4 SF |
1191 | count += name_len; |
1192 | pSMB->hdr.smb_buf_length += count; | |
1193 | ||
1194 | pSMB->ByteCount = cpu_to_le16(count); | |
1195 | /* long_op set to 1 to allow for oplock break timeouts */ | |
1196 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
133672ef | 1197 | (struct smb_hdr *)pSMBr, &bytes_returned, CIFS_LONG_OP); |
a9d02ad4 SF |
1198 | cifs_stats_inc(&tcon->num_opens); |
1199 | if (rc) { | |
b6b38f70 | 1200 | cFYI(1, "Error in Open = %d", rc); |
a9d02ad4 SF |
1201 | } else { |
1202 | /* BB verify if wct == 15 */ | |
1203 | ||
582d21e5 | 1204 | /* *pOplock = pSMBr->OplockLevel; */ /* BB take from action field*/ |
a9d02ad4 SF |
1205 | |
1206 | *netfid = pSMBr->Fid; /* cifs fid stays in le */ | |
1207 | /* Let caller know file was created so we can set the mode. */ | |
1208 | /* Do we care about the CreateAction in any other cases? */ | |
1209 | /* BB FIXME BB */ | |
790fe579 | 1210 | /* if (cpu_to_le32(FILE_CREATE) == pSMBr->CreateAction) |
a9d02ad4 SF |
1211 | *pOplock |= CIFS_CREATE_ACTION; */ |
1212 | /* BB FIXME END */ | |
1213 | ||
790fe579 | 1214 | if (pfile_info) { |
a9d02ad4 SF |
1215 | pfile_info->CreationTime = 0; /* BB convert CreateTime*/ |
1216 | pfile_info->LastAccessTime = 0; /* BB fixme */ | |
1217 | pfile_info->LastWriteTime = 0; /* BB fixme */ | |
1218 | pfile_info->ChangeTime = 0; /* BB fixme */ | |
70ca734a | 1219 | pfile_info->Attributes = |
50c2f753 | 1220 | cpu_to_le32(le16_to_cpu(pSMBr->FileAttributes)); |
a9d02ad4 | 1221 | /* the file_info buf is endian converted by caller */ |
70ca734a SF |
1222 | pfile_info->AllocationSize = |
1223 | cpu_to_le64(le32_to_cpu(pSMBr->EndOfFile)); | |
1224 | pfile_info->EndOfFile = pfile_info->AllocationSize; | |
a9d02ad4 | 1225 | pfile_info->NumberOfLinks = cpu_to_le32(1); |
9a8165fc | 1226 | pfile_info->DeletePending = 0; |
a9d02ad4 SF |
1227 | } |
1228 | } | |
1229 | ||
1230 | cifs_buf_release(pSMB); | |
1231 | if (rc == -EAGAIN) | |
1232 | goto OldOpenRetry; | |
1233 | return rc; | |
1234 | } | |
1235 | ||
1da177e4 LT |
1236 | int |
1237 | CIFSSMBOpen(const int xid, struct cifsTconInfo *tcon, | |
1238 | const char *fileName, const int openDisposition, | |
ad7a2926 SF |
1239 | const int access_flags, const int create_options, __u16 *netfid, |
1240 | int *pOplock, FILE_ALL_INFO *pfile_info, | |
737b758c | 1241 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
1242 | { |
1243 | int rc = -EACCES; | |
1244 | OPEN_REQ *pSMB = NULL; | |
1245 | OPEN_RSP *pSMBr = NULL; | |
1246 | int bytes_returned; | |
1247 | int name_len; | |
1248 | __u16 count; | |
1249 | ||
1250 | openRetry: | |
1251 | rc = smb_init(SMB_COM_NT_CREATE_ANDX, 24, tcon, (void **) &pSMB, | |
1252 | (void **) &pSMBr); | |
1253 | if (rc) | |
1254 | return rc; | |
1255 | ||
1256 | pSMB->AndXCommand = 0xFF; /* none */ | |
1257 | ||
1258 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1259 | count = 1; /* account for one byte pad to word boundary */ | |
1260 | name_len = | |
b1a45695 | 1261 | cifsConvertToUCS((__le16 *) (pSMB->fileName + 1), |
737b758c | 1262 | fileName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1263 | name_len++; /* trailing null */ |
1264 | name_len *= 2; | |
1265 | pSMB->NameLength = cpu_to_le16(name_len); | |
09d1db5c | 1266 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
1267 | count = 0; /* no pad */ |
1268 | name_len = strnlen(fileName, PATH_MAX); | |
1269 | name_len++; /* trailing null */ | |
1270 | pSMB->NameLength = cpu_to_le16(name_len); | |
1271 | strncpy(pSMB->fileName, fileName, name_len); | |
1272 | } | |
1273 | if (*pOplock & REQ_OPLOCK) | |
1274 | pSMB->OpenFlags = cpu_to_le32(REQ_OPLOCK); | |
26f57364 | 1275 | else if (*pOplock & REQ_BATCHOPLOCK) |
1da177e4 | 1276 | pSMB->OpenFlags = cpu_to_le32(REQ_BATCHOPLOCK); |
1da177e4 LT |
1277 | pSMB->DesiredAccess = cpu_to_le32(access_flags); |
1278 | pSMB->AllocationSize = 0; | |
eda3c029 SF |
1279 | /* set file as system file if special file such |
1280 | as fifo and server expecting SFU style and | |
1281 | no Unix extensions */ | |
790fe579 | 1282 | if (create_options & CREATE_OPTION_SPECIAL) |
eda3c029 SF |
1283 | pSMB->FileAttributes = cpu_to_le32(ATTR_SYSTEM); |
1284 | else | |
1285 | pSMB->FileAttributes = cpu_to_le32(ATTR_NORMAL); | |
67750fb9 | 1286 | |
1da177e4 LT |
1287 | /* XP does not handle ATTR_POSIX_SEMANTICS */ |
1288 | /* but it helps speed up case sensitive checks for other | |
1289 | servers such as Samba */ | |
1290 | if (tcon->ses->capabilities & CAP_UNIX) | |
1291 | pSMB->FileAttributes |= cpu_to_le32(ATTR_POSIX_SEMANTICS); | |
1292 | ||
67750fb9 JL |
1293 | if (create_options & CREATE_OPTION_READONLY) |
1294 | pSMB->FileAttributes |= cpu_to_le32(ATTR_READONLY); | |
1295 | ||
1da177e4 LT |
1296 | pSMB->ShareAccess = cpu_to_le32(FILE_SHARE_ALL); |
1297 | pSMB->CreateDisposition = cpu_to_le32(openDisposition); | |
eda3c029 | 1298 | pSMB->CreateOptions = cpu_to_le32(create_options & CREATE_OPTIONS_MASK); |
09d1db5c SF |
1299 | /* BB Expirement with various impersonation levels and verify */ |
1300 | pSMB->ImpersonationLevel = cpu_to_le32(SECURITY_IMPERSONATION); | |
1da177e4 LT |
1301 | pSMB->SecurityFlags = |
1302 | SECURITY_CONTEXT_TRACKING | SECURITY_EFFECTIVE_ONLY; | |
1303 | ||
1304 | count += name_len; | |
1305 | pSMB->hdr.smb_buf_length += count; | |
1306 | ||
1307 | pSMB->ByteCount = cpu_to_le16(count); | |
1308 | /* long_op set to 1 to allow for oplock break timeouts */ | |
1309 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
133672ef | 1310 | (struct smb_hdr *)pSMBr, &bytes_returned, CIFS_LONG_OP); |
a4544347 | 1311 | cifs_stats_inc(&tcon->num_opens); |
1da177e4 | 1312 | if (rc) { |
b6b38f70 | 1313 | cFYI(1, "Error in Open = %d", rc); |
1da177e4 | 1314 | } else { |
09d1db5c | 1315 | *pOplock = pSMBr->OplockLevel; /* 1 byte no need to le_to_cpu */ |
1da177e4 LT |
1316 | *netfid = pSMBr->Fid; /* cifs fid stays in le */ |
1317 | /* Let caller know file was created so we can set the mode. */ | |
1318 | /* Do we care about the CreateAction in any other cases? */ | |
790fe579 | 1319 | if (cpu_to_le32(FILE_CREATE) == pSMBr->CreateAction) |
50c2f753 | 1320 | *pOplock |= CIFS_CREATE_ACTION; |
790fe579 | 1321 | if (pfile_info) { |
61e74801 SF |
1322 | memcpy((char *)pfile_info, (char *)&pSMBr->CreationTime, |
1323 | 36 /* CreationTime to Attributes */); | |
1324 | /* the file_info buf is endian converted by caller */ | |
1325 | pfile_info->AllocationSize = pSMBr->AllocationSize; | |
1326 | pfile_info->EndOfFile = pSMBr->EndOfFile; | |
1327 | pfile_info->NumberOfLinks = cpu_to_le32(1); | |
1328 | pfile_info->DeletePending = 0; | |
1da177e4 | 1329 | } |
1da177e4 | 1330 | } |
a5a2b489 | 1331 | |
1da177e4 LT |
1332 | cifs_buf_release(pSMB); |
1333 | if (rc == -EAGAIN) | |
1334 | goto openRetry; | |
1335 | return rc; | |
1336 | } | |
1337 | ||
1da177e4 | 1338 | int |
50c2f753 SF |
1339 | CIFSSMBRead(const int xid, struct cifsTconInfo *tcon, const int netfid, |
1340 | const unsigned int count, const __u64 lseek, unsigned int *nbytes, | |
1341 | char **buf, int *pbuf_type) | |
1da177e4 LT |
1342 | { |
1343 | int rc = -EACCES; | |
1344 | READ_REQ *pSMB = NULL; | |
1345 | READ_RSP *pSMBr = NULL; | |
1346 | char *pReadData = NULL; | |
bfa0d75a | 1347 | int wct; |
ec637e3f SF |
1348 | int resp_buf_type = 0; |
1349 | struct kvec iov[1]; | |
1da177e4 | 1350 | |
b6b38f70 | 1351 | cFYI(1, "Reading %d bytes on fid %d", count, netfid); |
790fe579 | 1352 | if (tcon->ses->capabilities & CAP_LARGE_FILES) |
bfa0d75a | 1353 | wct = 12; |
4c3130ef | 1354 | else { |
bfa0d75a | 1355 | wct = 10; /* old style read */ |
4c3130ef SF |
1356 | if ((lseek >> 32) > 0) { |
1357 | /* can not handle this big offset for old */ | |
1358 | return -EIO; | |
1359 | } | |
1360 | } | |
1da177e4 LT |
1361 | |
1362 | *nbytes = 0; | |
ec637e3f | 1363 | rc = small_smb_init(SMB_COM_READ_ANDX, wct, tcon, (void **) &pSMB); |
1da177e4 LT |
1364 | if (rc) |
1365 | return rc; | |
1366 | ||
1367 | /* tcon and ses pointer are checked in smb_init */ | |
1368 | if (tcon->ses->server == NULL) | |
1369 | return -ECONNABORTED; | |
1370 | ||
ec637e3f | 1371 | pSMB->AndXCommand = 0xFF; /* none */ |
1da177e4 LT |
1372 | pSMB->Fid = netfid; |
1373 | pSMB->OffsetLow = cpu_to_le32(lseek & 0xFFFFFFFF); | |
790fe579 | 1374 | if (wct == 12) |
bfa0d75a | 1375 | pSMB->OffsetHigh = cpu_to_le32(lseek >> 32); |
bfa0d75a | 1376 | |
1da177e4 LT |
1377 | pSMB->Remaining = 0; |
1378 | pSMB->MaxCount = cpu_to_le16(count & 0xFFFF); | |
1379 | pSMB->MaxCountHigh = cpu_to_le32(count >> 16); | |
790fe579 | 1380 | if (wct == 12) |
bfa0d75a SF |
1381 | pSMB->ByteCount = 0; /* no need to do le conversion since 0 */ |
1382 | else { | |
1383 | /* old style read */ | |
50c2f753 | 1384 | struct smb_com_readx_req *pSMBW = |
bfa0d75a | 1385 | (struct smb_com_readx_req *)pSMB; |
ec637e3f | 1386 | pSMBW->ByteCount = 0; |
bfa0d75a | 1387 | } |
ec637e3f SF |
1388 | |
1389 | iov[0].iov_base = (char *)pSMB; | |
1390 | iov[0].iov_len = pSMB->hdr.smb_buf_length + 4; | |
a761ac57 | 1391 | rc = SendReceive2(xid, tcon->ses, iov, 1 /* num iovecs */, |
133672ef | 1392 | &resp_buf_type, CIFS_STD_OP | CIFS_LOG_ERROR); |
a4544347 | 1393 | cifs_stats_inc(&tcon->num_reads); |
ec637e3f | 1394 | pSMBr = (READ_RSP *)iov[0].iov_base; |
1da177e4 | 1395 | if (rc) { |
b6b38f70 | 1396 | cERROR(1, "Send error in read = %d", rc); |
1da177e4 LT |
1397 | } else { |
1398 | int data_length = le16_to_cpu(pSMBr->DataLengthHigh); | |
1399 | data_length = data_length << 16; | |
1400 | data_length += le16_to_cpu(pSMBr->DataLength); | |
1401 | *nbytes = data_length; | |
1402 | ||
1403 | /*check that DataLength would not go beyond end of SMB */ | |
ec637e3f | 1404 | if ((data_length > CIFSMaxBufSize) |
1da177e4 | 1405 | || (data_length > count)) { |
b6b38f70 JP |
1406 | cFYI(1, "bad length %d for count %d", |
1407 | data_length, count); | |
1da177e4 LT |
1408 | rc = -EIO; |
1409 | *nbytes = 0; | |
1410 | } else { | |
ec637e3f | 1411 | pReadData = (char *) (&pSMBr->hdr.Protocol) + |
26f57364 SF |
1412 | le16_to_cpu(pSMBr->DataOffset); |
1413 | /* if (rc = copy_to_user(buf, pReadData, data_length)) { | |
b6b38f70 | 1414 | cERROR(1, "Faulting on read rc = %d",rc); |
50c2f753 | 1415 | rc = -EFAULT; |
26f57364 | 1416 | }*/ /* can not use copy_to_user when using page cache*/ |
790fe579 | 1417 | if (*buf) |
50c2f753 | 1418 | memcpy(*buf, pReadData, data_length); |
1da177e4 LT |
1419 | } |
1420 | } | |
1da177e4 | 1421 | |
4b8f930f | 1422 | /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */ |
790fe579 SF |
1423 | if (*buf) { |
1424 | if (resp_buf_type == CIFS_SMALL_BUFFER) | |
ec637e3f | 1425 | cifs_small_buf_release(iov[0].iov_base); |
790fe579 | 1426 | else if (resp_buf_type == CIFS_LARGE_BUFFER) |
ec637e3f | 1427 | cifs_buf_release(iov[0].iov_base); |
790fe579 | 1428 | } else if (resp_buf_type != CIFS_NO_BUFFER) { |
50c2f753 SF |
1429 | /* return buffer to caller to free */ |
1430 | *buf = iov[0].iov_base; | |
790fe579 | 1431 | if (resp_buf_type == CIFS_SMALL_BUFFER) |
ec637e3f | 1432 | *pbuf_type = CIFS_SMALL_BUFFER; |
790fe579 | 1433 | else if (resp_buf_type == CIFS_LARGE_BUFFER) |
ec637e3f | 1434 | *pbuf_type = CIFS_LARGE_BUFFER; |
6cec2aed | 1435 | } /* else no valid buffer on return - leave as null */ |
ec637e3f SF |
1436 | |
1437 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
1da177e4 LT |
1438 | since file handle passed in no longer valid */ |
1439 | return rc; | |
1440 | } | |
1441 | ||
ec637e3f | 1442 | |
1da177e4 LT |
1443 | int |
1444 | CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon, | |
1445 | const int netfid, const unsigned int count, | |
1446 | const __u64 offset, unsigned int *nbytes, const char *buf, | |
50c2f753 | 1447 | const char __user *ubuf, const int long_op) |
1da177e4 LT |
1448 | { |
1449 | int rc = -EACCES; | |
1450 | WRITE_REQ *pSMB = NULL; | |
1451 | WRITE_RSP *pSMBr = NULL; | |
1c955187 | 1452 | int bytes_returned, wct; |
1da177e4 LT |
1453 | __u32 bytes_sent; |
1454 | __u16 byte_count; | |
1455 | ||
a24e2d7d SF |
1456 | *nbytes = 0; |
1457 | ||
b6b38f70 | 1458 | /* cFYI(1, "write at %lld %d bytes", offset, count);*/ |
790fe579 | 1459 | if (tcon->ses == NULL) |
1c955187 SF |
1460 | return -ECONNABORTED; |
1461 | ||
790fe579 | 1462 | if (tcon->ses->capabilities & CAP_LARGE_FILES) |
1c955187 | 1463 | wct = 14; |
4c3130ef | 1464 | else { |
1c955187 | 1465 | wct = 12; |
4c3130ef SF |
1466 | if ((offset >> 32) > 0) { |
1467 | /* can not handle big offset for old srv */ | |
1468 | return -EIO; | |
1469 | } | |
1470 | } | |
1c955187 SF |
1471 | |
1472 | rc = smb_init(SMB_COM_WRITE_ANDX, wct, tcon, (void **) &pSMB, | |
1da177e4 LT |
1473 | (void **) &pSMBr); |
1474 | if (rc) | |
1475 | return rc; | |
1476 | /* tcon and ses pointer are checked in smb_init */ | |
1477 | if (tcon->ses->server == NULL) | |
1478 | return -ECONNABORTED; | |
1479 | ||
1480 | pSMB->AndXCommand = 0xFF; /* none */ | |
1481 | pSMB->Fid = netfid; | |
1482 | pSMB->OffsetLow = cpu_to_le32(offset & 0xFFFFFFFF); | |
790fe579 | 1483 | if (wct == 14) |
1c955187 | 1484 | pSMB->OffsetHigh = cpu_to_le32(offset >> 32); |
50c2f753 | 1485 | |
1da177e4 LT |
1486 | pSMB->Reserved = 0xFFFFFFFF; |
1487 | pSMB->WriteMode = 0; | |
1488 | pSMB->Remaining = 0; | |
1489 | ||
50c2f753 | 1490 | /* Can increase buffer size if buffer is big enough in some cases ie we |
1da177e4 LT |
1491 | can send more if LARGE_WRITE_X capability returned by the server and if |
1492 | our buffer is big enough or if we convert to iovecs on socket writes | |
1493 | and eliminate the copy to the CIFS buffer */ | |
790fe579 | 1494 | if (tcon->ses->capabilities & CAP_LARGE_WRITE_X) { |
1da177e4 LT |
1495 | bytes_sent = min_t(const unsigned int, CIFSMaxBufSize, count); |
1496 | } else { | |
1497 | bytes_sent = (tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) | |
1498 | & ~0xFF; | |
1499 | } | |
1500 | ||
1501 | if (bytes_sent > count) | |
1502 | bytes_sent = count; | |
1503 | pSMB->DataOffset = | |
50c2f753 | 1504 | cpu_to_le16(offsetof(struct smb_com_write_req, Data) - 4); |
790fe579 | 1505 | if (buf) |
61e74801 | 1506 | memcpy(pSMB->Data, buf, bytes_sent); |
790fe579 SF |
1507 | else if (ubuf) { |
1508 | if (copy_from_user(pSMB->Data, ubuf, bytes_sent)) { | |
1da177e4 LT |
1509 | cifs_buf_release(pSMB); |
1510 | return -EFAULT; | |
1511 | } | |
e30dcf3a | 1512 | } else if (count != 0) { |
1da177e4 LT |
1513 | /* No buffer */ |
1514 | cifs_buf_release(pSMB); | |
1515 | return -EINVAL; | |
e30dcf3a | 1516 | } /* else setting file size with write of zero bytes */ |
790fe579 | 1517 | if (wct == 14) |
e30dcf3a | 1518 | byte_count = bytes_sent + 1; /* pad */ |
ad7a2926 | 1519 | else /* wct == 12 */ |
e30dcf3a | 1520 | byte_count = bytes_sent + 5; /* bigger pad, smaller smb hdr */ |
ad7a2926 | 1521 | |
1da177e4 LT |
1522 | pSMB->DataLengthLow = cpu_to_le16(bytes_sent & 0xFFFF); |
1523 | pSMB->DataLengthHigh = cpu_to_le16(bytes_sent >> 16); | |
e30dcf3a | 1524 | pSMB->hdr.smb_buf_length += byte_count; |
1c955187 | 1525 | |
790fe579 | 1526 | if (wct == 14) |
1c955187 | 1527 | pSMB->ByteCount = cpu_to_le16(byte_count); |
50c2f753 SF |
1528 | else { /* old style write has byte count 4 bytes earlier |
1529 | so 4 bytes pad */ | |
1530 | struct smb_com_writex_req *pSMBW = | |
1c955187 SF |
1531 | (struct smb_com_writex_req *)pSMB; |
1532 | pSMBW->ByteCount = cpu_to_le16(byte_count); | |
1533 | } | |
1da177e4 LT |
1534 | |
1535 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1536 | (struct smb_hdr *) pSMBr, &bytes_returned, long_op); | |
a4544347 | 1537 | cifs_stats_inc(&tcon->num_writes); |
1da177e4 | 1538 | if (rc) { |
f19159dc | 1539 | cFYI(1, "Send error in write = %d", rc); |
1da177e4 LT |
1540 | } else { |
1541 | *nbytes = le16_to_cpu(pSMBr->CountHigh); | |
1542 | *nbytes = (*nbytes) << 16; | |
1543 | *nbytes += le16_to_cpu(pSMBr->Count); | |
6513a81e SJ |
1544 | |
1545 | /* | |
1546 | * Mask off high 16 bits when bytes written as returned by the | |
1547 | * server is greater than bytes requested by the client. Some | |
1548 | * OS/2 servers are known to set incorrect CountHigh values. | |
1549 | */ | |
1550 | if (*nbytes > count) | |
1551 | *nbytes &= 0xFFFF; | |
1da177e4 LT |
1552 | } |
1553 | ||
1554 | cifs_buf_release(pSMB); | |
1555 | ||
50c2f753 | 1556 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
1da177e4 LT |
1557 | since file handle passed in no longer valid */ |
1558 | ||
1559 | return rc; | |
1560 | } | |
1561 | ||
d6e04ae6 SF |
1562 | int |
1563 | CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon, | |
1da177e4 | 1564 | const int netfid, const unsigned int count, |
3e84469d SF |
1565 | const __u64 offset, unsigned int *nbytes, struct kvec *iov, |
1566 | int n_vec, const int long_op) | |
1da177e4 LT |
1567 | { |
1568 | int rc = -EACCES; | |
1569 | WRITE_REQ *pSMB = NULL; | |
ec637e3f | 1570 | int wct; |
d6e04ae6 | 1571 | int smb_hdr_len; |
ec637e3f | 1572 | int resp_buf_type = 0; |
1da177e4 | 1573 | |
fbec9ab9 JL |
1574 | *nbytes = 0; |
1575 | ||
b6b38f70 | 1576 | cFYI(1, "write2 at %lld %d bytes", (long long)offset, count); |
ff7feac9 | 1577 | |
4c3130ef | 1578 | if (tcon->ses->capabilities & CAP_LARGE_FILES) { |
8cc64c6e | 1579 | wct = 14; |
4c3130ef | 1580 | } else { |
8cc64c6e | 1581 | wct = 12; |
4c3130ef SF |
1582 | if ((offset >> 32) > 0) { |
1583 | /* can not handle big offset for old srv */ | |
1584 | return -EIO; | |
1585 | } | |
1586 | } | |
8cc64c6e | 1587 | rc = small_smb_init(SMB_COM_WRITE_ANDX, wct, tcon, (void **) &pSMB); |
1da177e4 LT |
1588 | if (rc) |
1589 | return rc; | |
1da177e4 LT |
1590 | /* tcon and ses pointer are checked in smb_init */ |
1591 | if (tcon->ses->server == NULL) | |
1592 | return -ECONNABORTED; | |
1593 | ||
d6e04ae6 | 1594 | pSMB->AndXCommand = 0xFF; /* none */ |
1da177e4 LT |
1595 | pSMB->Fid = netfid; |
1596 | pSMB->OffsetLow = cpu_to_le32(offset & 0xFFFFFFFF); | |
790fe579 | 1597 | if (wct == 14) |
8cc64c6e | 1598 | pSMB->OffsetHigh = cpu_to_le32(offset >> 32); |
1da177e4 LT |
1599 | pSMB->Reserved = 0xFFFFFFFF; |
1600 | pSMB->WriteMode = 0; | |
1601 | pSMB->Remaining = 0; | |
d6e04ae6 | 1602 | |
1da177e4 | 1603 | pSMB->DataOffset = |
50c2f753 | 1604 | cpu_to_le16(offsetof(struct smb_com_write_req, Data) - 4); |
1da177e4 | 1605 | |
3e84469d SF |
1606 | pSMB->DataLengthLow = cpu_to_le16(count & 0xFFFF); |
1607 | pSMB->DataLengthHigh = cpu_to_le16(count >> 16); | |
d6e04ae6 | 1608 | smb_hdr_len = pSMB->hdr.smb_buf_length + 1; /* hdr + 1 byte pad */ |
790fe579 | 1609 | if (wct == 14) |
8cc64c6e SF |
1610 | pSMB->hdr.smb_buf_length += count+1; |
1611 | else /* wct == 12 */ | |
790fe579 SF |
1612 | pSMB->hdr.smb_buf_length += count+5; /* smb data starts later */ |
1613 | if (wct == 14) | |
8cc64c6e SF |
1614 | pSMB->ByteCount = cpu_to_le16(count + 1); |
1615 | else /* wct == 12 */ /* bigger pad, smaller smb hdr, keep offset ok */ { | |
50c2f753 | 1616 | struct smb_com_writex_req *pSMBW = |
8cc64c6e SF |
1617 | (struct smb_com_writex_req *)pSMB; |
1618 | pSMBW->ByteCount = cpu_to_le16(count + 5); | |
1619 | } | |
3e84469d | 1620 | iov[0].iov_base = pSMB; |
790fe579 | 1621 | if (wct == 14) |
ec637e3f SF |
1622 | iov[0].iov_len = smb_hdr_len + 4; |
1623 | else /* wct == 12 pad bigger by four bytes */ | |
1624 | iov[0].iov_len = smb_hdr_len + 8; | |
50c2f753 | 1625 | |
1da177e4 | 1626 | |
ec637e3f | 1627 | rc = SendReceive2(xid, tcon->ses, iov, n_vec + 1, &resp_buf_type, |
133672ef | 1628 | long_op); |
a4544347 | 1629 | cifs_stats_inc(&tcon->num_writes); |
1da177e4 | 1630 | if (rc) { |
b6b38f70 | 1631 | cFYI(1, "Send error Write2 = %d", rc); |
790fe579 | 1632 | } else if (resp_buf_type == 0) { |
ec637e3f SF |
1633 | /* presumably this can not happen, but best to be safe */ |
1634 | rc = -EIO; | |
d6e04ae6 | 1635 | } else { |
ad7a2926 | 1636 | WRITE_RSP *pSMBr = (WRITE_RSP *)iov[0].iov_base; |
d6e04ae6 SF |
1637 | *nbytes = le16_to_cpu(pSMBr->CountHigh); |
1638 | *nbytes = (*nbytes) << 16; | |
1639 | *nbytes += le16_to_cpu(pSMBr->Count); | |
6513a81e SJ |
1640 | |
1641 | /* | |
1642 | * Mask off high 16 bits when bytes written as returned by the | |
1643 | * server is greater than bytes requested by the client. OS/2 | |
1644 | * servers are known to set incorrect CountHigh values. | |
1645 | */ | |
1646 | if (*nbytes > count) | |
1647 | *nbytes &= 0xFFFF; | |
50c2f753 | 1648 | } |
1da177e4 | 1649 | |
4b8f930f | 1650 | /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */ |
790fe579 | 1651 | if (resp_buf_type == CIFS_SMALL_BUFFER) |
ec637e3f | 1652 | cifs_small_buf_release(iov[0].iov_base); |
790fe579 | 1653 | else if (resp_buf_type == CIFS_LARGE_BUFFER) |
ec637e3f | 1654 | cifs_buf_release(iov[0].iov_base); |
1da177e4 | 1655 | |
50c2f753 | 1656 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
1da177e4 LT |
1657 | since file handle passed in no longer valid */ |
1658 | ||
1659 | return rc; | |
1660 | } | |
d6e04ae6 SF |
1661 | |
1662 | ||
1da177e4 LT |
1663 | int |
1664 | CIFSSMBLock(const int xid, struct cifsTconInfo *tcon, | |
1665 | const __u16 smb_file_id, const __u64 len, | |
1666 | const __u64 offset, const __u32 numUnlock, | |
4b18f2a9 | 1667 | const __u32 numLock, const __u8 lockType, const bool waitFlag) |
1da177e4 LT |
1668 | { |
1669 | int rc = 0; | |
1670 | LOCK_REQ *pSMB = NULL; | |
aaa9bbe0 | 1671 | /* LOCK_RSP *pSMBr = NULL; */ /* No response data other than rc to parse */ |
1da177e4 LT |
1672 | int bytes_returned; |
1673 | int timeout = 0; | |
1674 | __u16 count; | |
1675 | ||
b6b38f70 | 1676 | cFYI(1, "CIFSSMBLock timeout %d numLock %d", (int)waitFlag, numLock); |
46810cbf SF |
1677 | rc = small_smb_init(SMB_COM_LOCKING_ANDX, 8, tcon, (void **) &pSMB); |
1678 | ||
1da177e4 LT |
1679 | if (rc) |
1680 | return rc; | |
1681 | ||
790fe579 | 1682 | if (lockType == LOCKING_ANDX_OPLOCK_RELEASE) { |
133672ef | 1683 | timeout = CIFS_ASYNC_OP; /* no response expected */ |
1da177e4 | 1684 | pSMB->Timeout = 0; |
4b18f2a9 | 1685 | } else if (waitFlag) { |
133672ef | 1686 | timeout = CIFS_BLOCKING_OP; /* blocking operation, no timeout */ |
1da177e4 LT |
1687 | pSMB->Timeout = cpu_to_le32(-1);/* blocking - do not time out */ |
1688 | } else { | |
1689 | pSMB->Timeout = 0; | |
1690 | } | |
1691 | ||
1692 | pSMB->NumberOfLocks = cpu_to_le16(numLock); | |
1693 | pSMB->NumberOfUnlocks = cpu_to_le16(numUnlock); | |
1694 | pSMB->LockType = lockType; | |
1695 | pSMB->AndXCommand = 0xFF; /* none */ | |
1696 | pSMB->Fid = smb_file_id; /* netfid stays le */ | |
1697 | ||
790fe579 | 1698 | if ((numLock != 0) || (numUnlock != 0)) { |
1da177e4 LT |
1699 | pSMB->Locks[0].Pid = cpu_to_le16(current->tgid); |
1700 | /* BB where to store pid high? */ | |
1701 | pSMB->Locks[0].LengthLow = cpu_to_le32((u32)len); | |
1702 | pSMB->Locks[0].LengthHigh = cpu_to_le32((u32)(len>>32)); | |
1703 | pSMB->Locks[0].OffsetLow = cpu_to_le32((u32)offset); | |
1704 | pSMB->Locks[0].OffsetHigh = cpu_to_le32((u32)(offset>>32)); | |
1705 | count = sizeof(LOCKING_ANDX_RANGE); | |
1706 | } else { | |
1707 | /* oplock break */ | |
1708 | count = 0; | |
1709 | } | |
1710 | pSMB->hdr.smb_buf_length += count; | |
1711 | pSMB->ByteCount = cpu_to_le16(count); | |
1712 | ||
7ee1af76 JA |
1713 | if (waitFlag) { |
1714 | rc = SendReceiveBlockingLock(xid, tcon, (struct smb_hdr *) pSMB, | |
aaa9bbe0 | 1715 | (struct smb_hdr *) pSMB, &bytes_returned); |
133672ef | 1716 | cifs_small_buf_release(pSMB); |
7ee1af76 | 1717 | } else { |
133672ef SF |
1718 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *)pSMB, |
1719 | timeout); | |
1720 | /* SMB buffer freed by function above */ | |
7ee1af76 | 1721 | } |
a4544347 | 1722 | cifs_stats_inc(&tcon->num_locks); |
ad7a2926 | 1723 | if (rc) |
b6b38f70 | 1724 | cFYI(1, "Send error in Lock = %d", rc); |
1da177e4 | 1725 | |
50c2f753 | 1726 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
1da177e4 LT |
1727 | since file handle passed in no longer valid */ |
1728 | return rc; | |
1729 | } | |
1730 | ||
08547b03 SF |
1731 | int |
1732 | CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon, | |
1733 | const __u16 smb_file_id, const int get_flag, const __u64 len, | |
50c2f753 | 1734 | struct file_lock *pLockData, const __u16 lock_type, |
4b18f2a9 | 1735 | const bool waitFlag) |
08547b03 SF |
1736 | { |
1737 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
1738 | struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; | |
08547b03 SF |
1739 | struct cifs_posix_lock *parm_data; |
1740 | int rc = 0; | |
3a5ff61c | 1741 | int timeout = 0; |
08547b03 | 1742 | int bytes_returned = 0; |
133672ef | 1743 | int resp_buf_type = 0; |
08547b03 | 1744 | __u16 params, param_offset, offset, byte_count, count; |
133672ef | 1745 | struct kvec iov[1]; |
08547b03 | 1746 | |
b6b38f70 | 1747 | cFYI(1, "Posix Lock"); |
fc94cdb9 | 1748 | |
790fe579 | 1749 | if (pLockData == NULL) |
ed5f0370 | 1750 | return -EINVAL; |
fc94cdb9 | 1751 | |
08547b03 SF |
1752 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
1753 | ||
1754 | if (rc) | |
1755 | return rc; | |
1756 | ||
1757 | pSMBr = (struct smb_com_transaction2_sfi_rsp *)pSMB; | |
1758 | ||
50c2f753 | 1759 | params = 6; |
08547b03 SF |
1760 | pSMB->MaxSetupCount = 0; |
1761 | pSMB->Reserved = 0; | |
1762 | pSMB->Flags = 0; | |
08547b03 SF |
1763 | pSMB->Reserved2 = 0; |
1764 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
1765 | offset = param_offset + params; | |
1766 | ||
08547b03 SF |
1767 | count = sizeof(struct cifs_posix_lock); |
1768 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
ad7a2926 | 1769 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB from sess */ |
08547b03 SF |
1770 | pSMB->SetupCount = 1; |
1771 | pSMB->Reserved3 = 0; | |
790fe579 | 1772 | if (get_flag) |
08547b03 SF |
1773 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FILE_INFORMATION); |
1774 | else | |
1775 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
1776 | byte_count = 3 /* pad */ + params + count; | |
1777 | pSMB->DataCount = cpu_to_le16(count); | |
1778 | pSMB->ParameterCount = cpu_to_le16(params); | |
1779 | pSMB->TotalDataCount = pSMB->DataCount; | |
1780 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
1781 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
50c2f753 | 1782 | parm_data = (struct cifs_posix_lock *) |
08547b03 SF |
1783 | (((char *) &pSMB->hdr.Protocol) + offset); |
1784 | ||
1785 | parm_data->lock_type = cpu_to_le16(lock_type); | |
790fe579 | 1786 | if (waitFlag) { |
133672ef | 1787 | timeout = CIFS_BLOCKING_OP; /* blocking operation, no timeout */ |
cec6815a | 1788 | parm_data->lock_flags = cpu_to_le16(1); |
3a5ff61c SF |
1789 | pSMB->Timeout = cpu_to_le32(-1); |
1790 | } else | |
1791 | pSMB->Timeout = 0; | |
1792 | ||
08547b03 | 1793 | parm_data->pid = cpu_to_le32(current->tgid); |
fc94cdb9 | 1794 | parm_data->start = cpu_to_le64(pLockData->fl_start); |
cec6815a | 1795 | parm_data->length = cpu_to_le64(len); /* normalize negative numbers */ |
08547b03 SF |
1796 | |
1797 | pSMB->DataOffset = cpu_to_le16(offset); | |
f26282c9 | 1798 | pSMB->Fid = smb_file_id; |
08547b03 SF |
1799 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_POSIX_LOCK); |
1800 | pSMB->Reserved4 = 0; | |
1801 | pSMB->hdr.smb_buf_length += byte_count; | |
1802 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
7ee1af76 JA |
1803 | if (waitFlag) { |
1804 | rc = SendReceiveBlockingLock(xid, tcon, (struct smb_hdr *) pSMB, | |
1805 | (struct smb_hdr *) pSMBr, &bytes_returned); | |
1806 | } else { | |
133672ef SF |
1807 | iov[0].iov_base = (char *)pSMB; |
1808 | iov[0].iov_len = pSMB->hdr.smb_buf_length + 4; | |
1809 | rc = SendReceive2(xid, tcon->ses, iov, 1 /* num iovecs */, | |
1810 | &resp_buf_type, timeout); | |
1811 | pSMB = NULL; /* request buf already freed by SendReceive2. Do | |
1812 | not try to free it twice below on exit */ | |
1813 | pSMBr = (struct smb_com_transaction2_sfi_rsp *)iov[0].iov_base; | |
7ee1af76 JA |
1814 | } |
1815 | ||
08547b03 | 1816 | if (rc) { |
b6b38f70 | 1817 | cFYI(1, "Send error in Posix Lock = %d", rc); |
fc94cdb9 SF |
1818 | } else if (get_flag) { |
1819 | /* lock structure can be returned on get */ | |
1820 | __u16 data_offset; | |
1821 | __u16 data_count; | |
1822 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
1823 | ||
1824 | if (rc || (pSMBr->ByteCount < sizeof(struct cifs_posix_lock))) { | |
1825 | rc = -EIO; /* bad smb */ | |
1826 | goto plk_err_exit; | |
1827 | } | |
fc94cdb9 SF |
1828 | data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
1829 | data_count = le16_to_cpu(pSMBr->t2.DataCount); | |
790fe579 | 1830 | if (data_count < sizeof(struct cifs_posix_lock)) { |
fc94cdb9 SF |
1831 | rc = -EIO; |
1832 | goto plk_err_exit; | |
1833 | } | |
1834 | parm_data = (struct cifs_posix_lock *) | |
1835 | ((char *)&pSMBr->hdr.Protocol + data_offset); | |
f05337c6 | 1836 | if (parm_data->lock_type == __constant_cpu_to_le16(CIFS_UNLCK)) |
fc94cdb9 | 1837 | pLockData->fl_type = F_UNLCK; |
f05337c6 PS |
1838 | else { |
1839 | if (parm_data->lock_type == | |
1840 | __constant_cpu_to_le16(CIFS_RDLCK)) | |
1841 | pLockData->fl_type = F_RDLCK; | |
1842 | else if (parm_data->lock_type == | |
1843 | __constant_cpu_to_le16(CIFS_WRLCK)) | |
1844 | pLockData->fl_type = F_WRLCK; | |
1845 | ||
1846 | pLockData->fl_start = parm_data->start; | |
1847 | pLockData->fl_end = parm_data->start + | |
1848 | parm_data->length - 1; | |
1849 | pLockData->fl_pid = parm_data->pid; | |
1850 | } | |
08547b03 | 1851 | } |
50c2f753 | 1852 | |
fc94cdb9 | 1853 | plk_err_exit: |
08547b03 SF |
1854 | if (pSMB) |
1855 | cifs_small_buf_release(pSMB); | |
1856 | ||
133672ef SF |
1857 | if (resp_buf_type == CIFS_SMALL_BUFFER) |
1858 | cifs_small_buf_release(iov[0].iov_base); | |
1859 | else if (resp_buf_type == CIFS_LARGE_BUFFER) | |
1860 | cifs_buf_release(iov[0].iov_base); | |
1861 | ||
08547b03 SF |
1862 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
1863 | since file handle passed in no longer valid */ | |
1864 | ||
1865 | return rc; | |
1866 | } | |
1867 | ||
1868 | ||
1da177e4 LT |
1869 | int |
1870 | CIFSSMBClose(const int xid, struct cifsTconInfo *tcon, int smb_file_id) | |
1871 | { | |
1872 | int rc = 0; | |
1873 | CLOSE_REQ *pSMB = NULL; | |
b6b38f70 | 1874 | cFYI(1, "In CIFSSMBClose"); |
1da177e4 LT |
1875 | |
1876 | /* do not retry on dead session on close */ | |
1877 | rc = small_smb_init(SMB_COM_CLOSE, 3, tcon, (void **) &pSMB); | |
790fe579 | 1878 | if (rc == -EAGAIN) |
1da177e4 LT |
1879 | return 0; |
1880 | if (rc) | |
1881 | return rc; | |
1882 | ||
1da177e4 | 1883 | pSMB->FileID = (__u16) smb_file_id; |
b815f1e5 | 1884 | pSMB->LastWriteTime = 0xFFFFFFFF; |
1da177e4 | 1885 | pSMB->ByteCount = 0; |
133672ef | 1886 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); |
a4544347 | 1887 | cifs_stats_inc(&tcon->num_closes); |
1da177e4 | 1888 | if (rc) { |
790fe579 | 1889 | if (rc != -EINTR) { |
1da177e4 | 1890 | /* EINTR is expected when user ctl-c to kill app */ |
b6b38f70 | 1891 | cERROR(1, "Send error in Close = %d", rc); |
1da177e4 LT |
1892 | } |
1893 | } | |
1894 | ||
1da177e4 | 1895 | /* Since session is dead, file will be closed on server already */ |
790fe579 | 1896 | if (rc == -EAGAIN) |
1da177e4 LT |
1897 | rc = 0; |
1898 | ||
1899 | return rc; | |
1900 | } | |
1901 | ||
b298f223 SF |
1902 | int |
1903 | CIFSSMBFlush(const int xid, struct cifsTconInfo *tcon, int smb_file_id) | |
1904 | { | |
1905 | int rc = 0; | |
1906 | FLUSH_REQ *pSMB = NULL; | |
b6b38f70 | 1907 | cFYI(1, "In CIFSSMBFlush"); |
b298f223 SF |
1908 | |
1909 | rc = small_smb_init(SMB_COM_FLUSH, 1, tcon, (void **) &pSMB); | |
1910 | if (rc) | |
1911 | return rc; | |
1912 | ||
1913 | pSMB->FileID = (__u16) smb_file_id; | |
1914 | pSMB->ByteCount = 0; | |
1915 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); | |
1916 | cifs_stats_inc(&tcon->num_flushes); | |
1917 | if (rc) | |
b6b38f70 | 1918 | cERROR(1, "Send error in Flush = %d", rc); |
b298f223 SF |
1919 | |
1920 | return rc; | |
1921 | } | |
1922 | ||
1da177e4 LT |
1923 | int |
1924 | CIFSSMBRename(const int xid, struct cifsTconInfo *tcon, | |
1925 | const char *fromName, const char *toName, | |
737b758c | 1926 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
1927 | { |
1928 | int rc = 0; | |
1929 | RENAME_REQ *pSMB = NULL; | |
1930 | RENAME_RSP *pSMBr = NULL; | |
1931 | int bytes_returned; | |
1932 | int name_len, name_len2; | |
1933 | __u16 count; | |
1934 | ||
b6b38f70 | 1935 | cFYI(1, "In CIFSSMBRename"); |
1da177e4 LT |
1936 | renameRetry: |
1937 | rc = smb_init(SMB_COM_RENAME, 1, tcon, (void **) &pSMB, | |
1938 | (void **) &pSMBr); | |
1939 | if (rc) | |
1940 | return rc; | |
1941 | ||
1942 | pSMB->BufferFormat = 0x04; | |
1943 | pSMB->SearchAttributes = | |
1944 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | | |
1945 | ATTR_DIRECTORY); | |
1946 | ||
1947 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1948 | name_len = | |
50c2f753 | 1949 | cifsConvertToUCS((__le16 *) pSMB->OldFileName, fromName, |
737b758c | 1950 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1951 | name_len++; /* trailing null */ |
1952 | name_len *= 2; | |
1953 | pSMB->OldFileName[name_len] = 0x04; /* pad */ | |
1954 | /* protocol requires ASCII signature byte on Unicode string */ | |
1955 | pSMB->OldFileName[name_len + 1] = 0x00; | |
1956 | name_len2 = | |
582d21e5 | 1957 | cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2], |
737b758c | 1958 | toName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1959 | name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; |
1960 | name_len2 *= 2; /* convert to bytes */ | |
50c2f753 | 1961 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
1962 | name_len = strnlen(fromName, PATH_MAX); |
1963 | name_len++; /* trailing null */ | |
1964 | strncpy(pSMB->OldFileName, fromName, name_len); | |
1965 | name_len2 = strnlen(toName, PATH_MAX); | |
1966 | name_len2++; /* trailing null */ | |
1967 | pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */ | |
1968 | strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2); | |
1969 | name_len2++; /* trailing null */ | |
1970 | name_len2++; /* signature byte */ | |
1971 | } | |
1972 | ||
1973 | count = 1 /* 1st signature byte */ + name_len + name_len2; | |
1974 | pSMB->hdr.smb_buf_length += count; | |
1975 | pSMB->ByteCount = cpu_to_le16(count); | |
1976 | ||
1977 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1978 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 1979 | cifs_stats_inc(&tcon->num_renames); |
ad7a2926 | 1980 | if (rc) |
b6b38f70 | 1981 | cFYI(1, "Send error in rename = %d", rc); |
1da177e4 | 1982 | |
1da177e4 LT |
1983 | cifs_buf_release(pSMB); |
1984 | ||
1985 | if (rc == -EAGAIN) | |
1986 | goto renameRetry; | |
1987 | ||
1988 | return rc; | |
1989 | } | |
1990 | ||
50c2f753 | 1991 | int CIFSSMBRenameOpenFile(const int xid, struct cifsTconInfo *pTcon, |
391e5755 | 1992 | int netfid, const char *target_name, |
50c2f753 | 1993 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
1994 | { |
1995 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
1996 | struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; | |
50c2f753 | 1997 | struct set_file_rename *rename_info; |
1da177e4 LT |
1998 | char *data_offset; |
1999 | char dummy_string[30]; | |
2000 | int rc = 0; | |
2001 | int bytes_returned = 0; | |
2002 | int len_of_str; | |
2003 | __u16 params, param_offset, offset, count, byte_count; | |
2004 | ||
b6b38f70 | 2005 | cFYI(1, "Rename to File by handle"); |
1da177e4 LT |
2006 | rc = smb_init(SMB_COM_TRANSACTION2, 15, pTcon, (void **) &pSMB, |
2007 | (void **) &pSMBr); | |
2008 | if (rc) | |
2009 | return rc; | |
2010 | ||
2011 | params = 6; | |
2012 | pSMB->MaxSetupCount = 0; | |
2013 | pSMB->Reserved = 0; | |
2014 | pSMB->Flags = 0; | |
2015 | pSMB->Timeout = 0; | |
2016 | pSMB->Reserved2 = 0; | |
2017 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
2018 | offset = param_offset + params; | |
2019 | ||
2020 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
2021 | rename_info = (struct set_file_rename *) data_offset; | |
2022 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
ad7a2926 | 2023 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB from sess */ |
1da177e4 LT |
2024 | pSMB->SetupCount = 1; |
2025 | pSMB->Reserved3 = 0; | |
2026 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
2027 | byte_count = 3 /* pad */ + params; | |
2028 | pSMB->ParameterCount = cpu_to_le16(params); | |
2029 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
2030 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
2031 | pSMB->DataOffset = cpu_to_le16(offset); | |
2032 | /* construct random name ".cifs_tmp<inodenum><mid>" */ | |
2033 | rename_info->overwrite = cpu_to_le32(1); | |
2034 | rename_info->root_fid = 0; | |
2035 | /* unicode only call */ | |
790fe579 | 2036 | if (target_name == NULL) { |
50c2f753 SF |
2037 | sprintf(dummy_string, "cifs%x", pSMB->hdr.Mid); |
2038 | len_of_str = cifsConvertToUCS((__le16 *)rename_info->target_name, | |
737b758c | 2039 | dummy_string, 24, nls_codepage, remap); |
1da177e4 | 2040 | } else { |
b1a45695 | 2041 | len_of_str = cifsConvertToUCS((__le16 *)rename_info->target_name, |
50c2f753 SF |
2042 | target_name, PATH_MAX, nls_codepage, |
2043 | remap); | |
1da177e4 LT |
2044 | } |
2045 | rename_info->target_name_len = cpu_to_le32(2 * len_of_str); | |
391e5755 | 2046 | count = 12 /* sizeof(struct set_file_rename) */ + (2 * len_of_str); |
1da177e4 LT |
2047 | byte_count += count; |
2048 | pSMB->DataCount = cpu_to_le16(count); | |
2049 | pSMB->TotalDataCount = pSMB->DataCount; | |
2050 | pSMB->Fid = netfid; | |
2051 | pSMB->InformationLevel = | |
2052 | cpu_to_le16(SMB_SET_FILE_RENAME_INFORMATION); | |
2053 | pSMB->Reserved4 = 0; | |
2054 | pSMB->hdr.smb_buf_length += byte_count; | |
2055 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2056 | rc = SendReceive(xid, pTcon->ses, (struct smb_hdr *) pSMB, | |
50c2f753 | 2057 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
a4544347 | 2058 | cifs_stats_inc(&pTcon->num_t2renames); |
ad7a2926 | 2059 | if (rc) |
b6b38f70 | 2060 | cFYI(1, "Send error in Rename (by file handle) = %d", rc); |
a5a2b489 | 2061 | |
1da177e4 LT |
2062 | cifs_buf_release(pSMB); |
2063 | ||
2064 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
2065 | since file handle passed in no longer valid */ | |
2066 | ||
2067 | return rc; | |
2068 | } | |
2069 | ||
2070 | int | |
50c2f753 SF |
2071 | CIFSSMBCopy(const int xid, struct cifsTconInfo *tcon, const char *fromName, |
2072 | const __u16 target_tid, const char *toName, const int flags, | |
2073 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
2074 | { |
2075 | int rc = 0; | |
2076 | COPY_REQ *pSMB = NULL; | |
2077 | COPY_RSP *pSMBr = NULL; | |
2078 | int bytes_returned; | |
2079 | int name_len, name_len2; | |
2080 | __u16 count; | |
2081 | ||
b6b38f70 | 2082 | cFYI(1, "In CIFSSMBCopy"); |
1da177e4 LT |
2083 | copyRetry: |
2084 | rc = smb_init(SMB_COM_COPY, 1, tcon, (void **) &pSMB, | |
2085 | (void **) &pSMBr); | |
2086 | if (rc) | |
2087 | return rc; | |
2088 | ||
2089 | pSMB->BufferFormat = 0x04; | |
2090 | pSMB->Tid2 = target_tid; | |
2091 | ||
2092 | pSMB->Flags = cpu_to_le16(flags & COPY_TREE); | |
2093 | ||
2094 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
50c2f753 | 2095 | name_len = cifsConvertToUCS((__le16 *) pSMB->OldFileName, |
737b758c SF |
2096 | fromName, PATH_MAX, nls_codepage, |
2097 | remap); | |
1da177e4 LT |
2098 | name_len++; /* trailing null */ |
2099 | name_len *= 2; | |
2100 | pSMB->OldFileName[name_len] = 0x04; /* pad */ | |
2101 | /* protocol requires ASCII signature byte on Unicode string */ | |
2102 | pSMB->OldFileName[name_len + 1] = 0x00; | |
50c2f753 SF |
2103 | name_len2 = |
2104 | cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2], | |
737b758c | 2105 | toName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2106 | name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; |
2107 | name_len2 *= 2; /* convert to bytes */ | |
50c2f753 | 2108 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2109 | name_len = strnlen(fromName, PATH_MAX); |
2110 | name_len++; /* trailing null */ | |
2111 | strncpy(pSMB->OldFileName, fromName, name_len); | |
2112 | name_len2 = strnlen(toName, PATH_MAX); | |
2113 | name_len2++; /* trailing null */ | |
2114 | pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */ | |
2115 | strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2); | |
2116 | name_len2++; /* trailing null */ | |
2117 | name_len2++; /* signature byte */ | |
2118 | } | |
2119 | ||
2120 | count = 1 /* 1st signature byte */ + name_len + name_len2; | |
2121 | pSMB->hdr.smb_buf_length += count; | |
2122 | pSMB->ByteCount = cpu_to_le16(count); | |
2123 | ||
2124 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2125 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2126 | if (rc) { | |
b6b38f70 JP |
2127 | cFYI(1, "Send error in copy = %d with %d files copied", |
2128 | rc, le16_to_cpu(pSMBr->CopyCount)); | |
1da177e4 | 2129 | } |
0d817bc0 | 2130 | cifs_buf_release(pSMB); |
1da177e4 LT |
2131 | |
2132 | if (rc == -EAGAIN) | |
2133 | goto copyRetry; | |
2134 | ||
2135 | return rc; | |
2136 | } | |
2137 | ||
2138 | int | |
2139 | CIFSUnixCreateSymLink(const int xid, struct cifsTconInfo *tcon, | |
2140 | const char *fromName, const char *toName, | |
2141 | const struct nls_table *nls_codepage) | |
2142 | { | |
2143 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
2144 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
2145 | char *data_offset; | |
2146 | int name_len; | |
2147 | int name_len_target; | |
2148 | int rc = 0; | |
2149 | int bytes_returned = 0; | |
2150 | __u16 params, param_offset, offset, byte_count; | |
2151 | ||
b6b38f70 | 2152 | cFYI(1, "In Symlink Unix style"); |
1da177e4 LT |
2153 | createSymLinkRetry: |
2154 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2155 | (void **) &pSMBr); | |
2156 | if (rc) | |
2157 | return rc; | |
2158 | ||
2159 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2160 | name_len = | |
e89dc920 | 2161 | cifs_strtoUCS((__le16 *) pSMB->FileName, fromName, PATH_MAX |
1da177e4 LT |
2162 | /* find define for this maxpathcomponent */ |
2163 | , nls_codepage); | |
2164 | name_len++; /* trailing null */ | |
2165 | name_len *= 2; | |
2166 | ||
50c2f753 | 2167 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2168 | name_len = strnlen(fromName, PATH_MAX); |
2169 | name_len++; /* trailing null */ | |
2170 | strncpy(pSMB->FileName, fromName, name_len); | |
2171 | } | |
2172 | params = 6 + name_len; | |
2173 | pSMB->MaxSetupCount = 0; | |
2174 | pSMB->Reserved = 0; | |
2175 | pSMB->Flags = 0; | |
2176 | pSMB->Timeout = 0; | |
2177 | pSMB->Reserved2 = 0; | |
2178 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 2179 | InformationLevel) - 4; |
1da177e4 LT |
2180 | offset = param_offset + params; |
2181 | ||
2182 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
2183 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2184 | name_len_target = | |
e89dc920 | 2185 | cifs_strtoUCS((__le16 *) data_offset, toName, PATH_MAX |
1da177e4 LT |
2186 | /* find define for this maxpathcomponent */ |
2187 | , nls_codepage); | |
2188 | name_len_target++; /* trailing null */ | |
2189 | name_len_target *= 2; | |
50c2f753 | 2190 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2191 | name_len_target = strnlen(toName, PATH_MAX); |
2192 | name_len_target++; /* trailing null */ | |
2193 | strncpy(data_offset, toName, name_len_target); | |
2194 | } | |
2195 | ||
2196 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
2197 | /* BB find exact max on data count below from sess */ | |
2198 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
2199 | pSMB->SetupCount = 1; | |
2200 | pSMB->Reserved3 = 0; | |
2201 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
2202 | byte_count = 3 /* pad */ + params + name_len_target; | |
2203 | pSMB->DataCount = cpu_to_le16(name_len_target); | |
2204 | pSMB->ParameterCount = cpu_to_le16(params); | |
2205 | pSMB->TotalDataCount = pSMB->DataCount; | |
2206 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
2207 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
2208 | pSMB->DataOffset = cpu_to_le16(offset); | |
2209 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_LINK); | |
2210 | pSMB->Reserved4 = 0; | |
2211 | pSMB->hdr.smb_buf_length += byte_count; | |
2212 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2213 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2214 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 2215 | cifs_stats_inc(&tcon->num_symlinks); |
ad7a2926 | 2216 | if (rc) |
b6b38f70 | 2217 | cFYI(1, "Send error in SetPathInfo create symlink = %d", rc); |
1da177e4 | 2218 | |
0d817bc0 | 2219 | cifs_buf_release(pSMB); |
1da177e4 LT |
2220 | |
2221 | if (rc == -EAGAIN) | |
2222 | goto createSymLinkRetry; | |
2223 | ||
2224 | return rc; | |
2225 | } | |
2226 | ||
2227 | int | |
2228 | CIFSUnixCreateHardLink(const int xid, struct cifsTconInfo *tcon, | |
2229 | const char *fromName, const char *toName, | |
737b758c | 2230 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
2231 | { |
2232 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
2233 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
2234 | char *data_offset; | |
2235 | int name_len; | |
2236 | int name_len_target; | |
2237 | int rc = 0; | |
2238 | int bytes_returned = 0; | |
2239 | __u16 params, param_offset, offset, byte_count; | |
2240 | ||
b6b38f70 | 2241 | cFYI(1, "In Create Hard link Unix style"); |
1da177e4 LT |
2242 | createHardLinkRetry: |
2243 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2244 | (void **) &pSMBr); | |
2245 | if (rc) | |
2246 | return rc; | |
2247 | ||
2248 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
b1a45695 | 2249 | name_len = cifsConvertToUCS((__le16 *) pSMB->FileName, toName, |
737b758c | 2250 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2251 | name_len++; /* trailing null */ |
2252 | name_len *= 2; | |
2253 | ||
50c2f753 | 2254 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2255 | name_len = strnlen(toName, PATH_MAX); |
2256 | name_len++; /* trailing null */ | |
2257 | strncpy(pSMB->FileName, toName, name_len); | |
2258 | } | |
2259 | params = 6 + name_len; | |
2260 | pSMB->MaxSetupCount = 0; | |
2261 | pSMB->Reserved = 0; | |
2262 | pSMB->Flags = 0; | |
2263 | pSMB->Timeout = 0; | |
2264 | pSMB->Reserved2 = 0; | |
2265 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 2266 | InformationLevel) - 4; |
1da177e4 LT |
2267 | offset = param_offset + params; |
2268 | ||
2269 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
2270 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2271 | name_len_target = | |
b1a45695 | 2272 | cifsConvertToUCS((__le16 *) data_offset, fromName, PATH_MAX, |
737b758c | 2273 | nls_codepage, remap); |
1da177e4 LT |
2274 | name_len_target++; /* trailing null */ |
2275 | name_len_target *= 2; | |
50c2f753 | 2276 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2277 | name_len_target = strnlen(fromName, PATH_MAX); |
2278 | name_len_target++; /* trailing null */ | |
2279 | strncpy(data_offset, fromName, name_len_target); | |
2280 | } | |
2281 | ||
2282 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
2283 | /* BB find exact max on data count below from sess*/ | |
2284 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
2285 | pSMB->SetupCount = 1; | |
2286 | pSMB->Reserved3 = 0; | |
2287 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
2288 | byte_count = 3 /* pad */ + params + name_len_target; | |
2289 | pSMB->ParameterCount = cpu_to_le16(params); | |
2290 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
2291 | pSMB->DataCount = cpu_to_le16(name_len_target); | |
2292 | pSMB->TotalDataCount = pSMB->DataCount; | |
2293 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
2294 | pSMB->DataOffset = cpu_to_le16(offset); | |
2295 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_HLINK); | |
2296 | pSMB->Reserved4 = 0; | |
2297 | pSMB->hdr.smb_buf_length += byte_count; | |
2298 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2299 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2300 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 2301 | cifs_stats_inc(&tcon->num_hardlinks); |
ad7a2926 | 2302 | if (rc) |
b6b38f70 | 2303 | cFYI(1, "Send error in SetPathInfo (hard link) = %d", rc); |
1da177e4 LT |
2304 | |
2305 | cifs_buf_release(pSMB); | |
2306 | if (rc == -EAGAIN) | |
2307 | goto createHardLinkRetry; | |
2308 | ||
2309 | return rc; | |
2310 | } | |
2311 | ||
2312 | int | |
2313 | CIFSCreateHardLink(const int xid, struct cifsTconInfo *tcon, | |
2314 | const char *fromName, const char *toName, | |
737b758c | 2315 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
2316 | { |
2317 | int rc = 0; | |
2318 | NT_RENAME_REQ *pSMB = NULL; | |
2319 | RENAME_RSP *pSMBr = NULL; | |
2320 | int bytes_returned; | |
2321 | int name_len, name_len2; | |
2322 | __u16 count; | |
2323 | ||
b6b38f70 | 2324 | cFYI(1, "In CIFSCreateHardLink"); |
1da177e4 LT |
2325 | winCreateHardLinkRetry: |
2326 | ||
2327 | rc = smb_init(SMB_COM_NT_RENAME, 4, tcon, (void **) &pSMB, | |
2328 | (void **) &pSMBr); | |
2329 | if (rc) | |
2330 | return rc; | |
2331 | ||
2332 | pSMB->SearchAttributes = | |
2333 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | | |
2334 | ATTR_DIRECTORY); | |
2335 | pSMB->Flags = cpu_to_le16(CREATE_HARD_LINK); | |
2336 | pSMB->ClusterCount = 0; | |
2337 | ||
2338 | pSMB->BufferFormat = 0x04; | |
2339 | ||
2340 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2341 | name_len = | |
b1a45695 | 2342 | cifsConvertToUCS((__le16 *) pSMB->OldFileName, fromName, |
737b758c | 2343 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2344 | name_len++; /* trailing null */ |
2345 | name_len *= 2; | |
fcc7c09d JL |
2346 | |
2347 | /* protocol specifies ASCII buffer format (0x04) for unicode */ | |
2348 | pSMB->OldFileName[name_len] = 0x04; | |
2349 | pSMB->OldFileName[name_len + 1] = 0x00; /* pad */ | |
1da177e4 | 2350 | name_len2 = |
50c2f753 | 2351 | cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2], |
737b758c | 2352 | toName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2353 | name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; |
2354 | name_len2 *= 2; /* convert to bytes */ | |
50c2f753 | 2355 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2356 | name_len = strnlen(fromName, PATH_MAX); |
2357 | name_len++; /* trailing null */ | |
2358 | strncpy(pSMB->OldFileName, fromName, name_len); | |
2359 | name_len2 = strnlen(toName, PATH_MAX); | |
2360 | name_len2++; /* trailing null */ | |
2361 | pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */ | |
2362 | strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2); | |
2363 | name_len2++; /* trailing null */ | |
2364 | name_len2++; /* signature byte */ | |
2365 | } | |
2366 | ||
2367 | count = 1 /* string type byte */ + name_len + name_len2; | |
2368 | pSMB->hdr.smb_buf_length += count; | |
2369 | pSMB->ByteCount = cpu_to_le16(count); | |
2370 | ||
2371 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2372 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 2373 | cifs_stats_inc(&tcon->num_hardlinks); |
ad7a2926 | 2374 | if (rc) |
b6b38f70 | 2375 | cFYI(1, "Send error in hard link (NT rename) = %d", rc); |
ad7a2926 | 2376 | |
1da177e4 LT |
2377 | cifs_buf_release(pSMB); |
2378 | if (rc == -EAGAIN) | |
2379 | goto winCreateHardLinkRetry; | |
2380 | ||
2381 | return rc; | |
2382 | } | |
2383 | ||
2384 | int | |
2385 | CIFSSMBUnixQuerySymLink(const int xid, struct cifsTconInfo *tcon, | |
460b9696 | 2386 | const unsigned char *searchName, char **symlinkinfo, |
1da177e4 LT |
2387 | const struct nls_table *nls_codepage) |
2388 | { | |
2389 | /* SMB_QUERY_FILE_UNIX_LINK */ | |
2390 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
2391 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
2392 | int rc = 0; | |
2393 | int bytes_returned; | |
2394 | int name_len; | |
2395 | __u16 params, byte_count; | |
460b9696 | 2396 | char *data_start; |
1da177e4 | 2397 | |
b6b38f70 | 2398 | cFYI(1, "In QPathSymLinkInfo (Unix) for path %s", searchName); |
1da177e4 LT |
2399 | |
2400 | querySymLinkRetry: | |
2401 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2402 | (void **) &pSMBr); | |
2403 | if (rc) | |
2404 | return rc; | |
2405 | ||
2406 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2407 | name_len = | |
50c2f753 SF |
2408 | cifs_strtoUCS((__le16 *) pSMB->FileName, searchName, |
2409 | PATH_MAX, nls_codepage); | |
1da177e4 LT |
2410 | name_len++; /* trailing null */ |
2411 | name_len *= 2; | |
50c2f753 | 2412 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2413 | name_len = strnlen(searchName, PATH_MAX); |
2414 | name_len++; /* trailing null */ | |
2415 | strncpy(pSMB->FileName, searchName, name_len); | |
2416 | } | |
2417 | ||
2418 | params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ; | |
2419 | pSMB->TotalDataCount = 0; | |
2420 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
46a7574c | 2421 | pSMB->MaxDataCount = cpu_to_le16(CIFSMaxBufSize); |
1da177e4 LT |
2422 | pSMB->MaxSetupCount = 0; |
2423 | pSMB->Reserved = 0; | |
2424 | pSMB->Flags = 0; | |
2425 | pSMB->Timeout = 0; | |
2426 | pSMB->Reserved2 = 0; | |
2427 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 2428 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
1da177e4 LT |
2429 | pSMB->DataCount = 0; |
2430 | pSMB->DataOffset = 0; | |
2431 | pSMB->SetupCount = 1; | |
2432 | pSMB->Reserved3 = 0; | |
2433 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
2434 | byte_count = params + 1 /* pad */ ; | |
2435 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
2436 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2437 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_UNIX_LINK); | |
2438 | pSMB->Reserved4 = 0; | |
2439 | pSMB->hdr.smb_buf_length += byte_count; | |
2440 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2441 | ||
2442 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2443 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2444 | if (rc) { | |
b6b38f70 | 2445 | cFYI(1, "Send error in QuerySymLinkInfo = %d", rc); |
1da177e4 LT |
2446 | } else { |
2447 | /* decode response */ | |
2448 | ||
2449 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
1da177e4 | 2450 | /* BB also check enough total bytes returned */ |
460b9696 JL |
2451 | if (rc || (pSMBr->ByteCount < 2)) |
2452 | rc = -EIO; | |
1da177e4 | 2453 | else { |
0e0d2cf3 | 2454 | bool is_unicode; |
460b9696 JL |
2455 | u16 count = le16_to_cpu(pSMBr->t2.DataCount); |
2456 | ||
2457 | data_start = ((char *) &pSMBr->hdr.Protocol) + | |
2458 | le16_to_cpu(pSMBr->t2.DataOffset); | |
1da177e4 | 2459 | |
0e0d2cf3 SF |
2460 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) |
2461 | is_unicode = true; | |
2462 | else | |
2463 | is_unicode = false; | |
2464 | ||
737b758c | 2465 | /* BB FIXME investigate remapping reserved chars here */ |
d185cda7 | 2466 | *symlinkinfo = cifs_strndup_from_ucs(data_start, count, |
0e0d2cf3 | 2467 | is_unicode, nls_codepage); |
8b6427a2 | 2468 | if (!*symlinkinfo) |
460b9696 | 2469 | rc = -ENOMEM; |
1da177e4 LT |
2470 | } |
2471 | } | |
2472 | cifs_buf_release(pSMB); | |
2473 | if (rc == -EAGAIN) | |
2474 | goto querySymLinkRetry; | |
2475 | return rc; | |
2476 | } | |
2477 | ||
c9489779 | 2478 | #ifdef CONFIG_CIFS_EXPERIMENTAL |
0a4b92c0 SF |
2479 | /* Initialize NT TRANSACT SMB into small smb request buffer. |
2480 | This assumes that all NT TRANSACTS that we init here have | |
2481 | total parm and data under about 400 bytes (to fit in small cifs | |
2482 | buffer size), which is the case so far, it easily fits. NB: | |
2483 | Setup words themselves and ByteCount | |
2484 | MaxSetupCount (size of returned setup area) and | |
2485 | MaxParameterCount (returned parms size) must be set by caller */ | |
50c2f753 | 2486 | static int |
b9c7a2bb | 2487 | smb_init_nttransact(const __u16 sub_command, const int setup_count, |
0a4b92c0 | 2488 | const int parm_len, struct cifsTconInfo *tcon, |
50c2f753 | 2489 | void **ret_buf) |
0a4b92c0 SF |
2490 | { |
2491 | int rc; | |
2492 | __u32 temp_offset; | |
50c2f753 | 2493 | struct smb_com_ntransact_req *pSMB; |
0a4b92c0 SF |
2494 | |
2495 | rc = small_smb_init(SMB_COM_NT_TRANSACT, 19 + setup_count, tcon, | |
2496 | (void **)&pSMB); | |
2497 | if (rc) | |
2498 | return rc; | |
2499 | *ret_buf = (void *)pSMB; | |
2500 | pSMB->Reserved = 0; | |
2501 | pSMB->TotalParameterCount = cpu_to_le32(parm_len); | |
2502 | pSMB->TotalDataCount = 0; | |
2503 | pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf - | |
2504 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
2505 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2506 | pSMB->DataCount = pSMB->TotalDataCount; | |
2507 | temp_offset = offsetof(struct smb_com_ntransact_req, Parms) + | |
2508 | (setup_count * 2) - 4 /* for rfc1001 length itself */; | |
2509 | pSMB->ParameterOffset = cpu_to_le32(temp_offset); | |
2510 | pSMB->DataOffset = cpu_to_le32(temp_offset + parm_len); | |
2511 | pSMB->SetupCount = setup_count; /* no need to le convert byte fields */ | |
2512 | pSMB->SubCommand = cpu_to_le16(sub_command); | |
2513 | return 0; | |
2514 | } | |
2515 | ||
2516 | static int | |
50c2f753 | 2517 | validate_ntransact(char *buf, char **ppparm, char **ppdata, |
b9c7a2bb | 2518 | __u32 *pparmlen, __u32 *pdatalen) |
0a4b92c0 | 2519 | { |
50c2f753 | 2520 | char *end_of_smb; |
0a4b92c0 | 2521 | __u32 data_count, data_offset, parm_count, parm_offset; |
50c2f753 | 2522 | struct smb_com_ntransact_rsp *pSMBr; |
0a4b92c0 | 2523 | |
630f3f0c SF |
2524 | *pdatalen = 0; |
2525 | *pparmlen = 0; | |
2526 | ||
790fe579 | 2527 | if (buf == NULL) |
0a4b92c0 SF |
2528 | return -EINVAL; |
2529 | ||
2530 | pSMBr = (struct smb_com_ntransact_rsp *)buf; | |
2531 | ||
2532 | /* ByteCount was converted from little endian in SendReceive */ | |
50c2f753 | 2533 | end_of_smb = 2 /* sizeof byte count */ + pSMBr->ByteCount + |
0a4b92c0 SF |
2534 | (char *)&pSMBr->ByteCount; |
2535 | ||
0a4b92c0 SF |
2536 | data_offset = le32_to_cpu(pSMBr->DataOffset); |
2537 | data_count = le32_to_cpu(pSMBr->DataCount); | |
50c2f753 | 2538 | parm_offset = le32_to_cpu(pSMBr->ParameterOffset); |
0a4b92c0 SF |
2539 | parm_count = le32_to_cpu(pSMBr->ParameterCount); |
2540 | ||
2541 | *ppparm = (char *)&pSMBr->hdr.Protocol + parm_offset; | |
2542 | *ppdata = (char *)&pSMBr->hdr.Protocol + data_offset; | |
2543 | ||
2544 | /* should we also check that parm and data areas do not overlap? */ | |
790fe579 | 2545 | if (*ppparm > end_of_smb) { |
b6b38f70 | 2546 | cFYI(1, "parms start after end of smb"); |
0a4b92c0 | 2547 | return -EINVAL; |
790fe579 | 2548 | } else if (parm_count + *ppparm > end_of_smb) { |
b6b38f70 | 2549 | cFYI(1, "parm end after end of smb"); |
0a4b92c0 | 2550 | return -EINVAL; |
790fe579 | 2551 | } else if (*ppdata > end_of_smb) { |
b6b38f70 | 2552 | cFYI(1, "data starts after end of smb"); |
0a4b92c0 | 2553 | return -EINVAL; |
790fe579 | 2554 | } else if (data_count + *ppdata > end_of_smb) { |
f19159dc | 2555 | cFYI(1, "data %p + count %d (%p) past smb end %p start %p", |
50c2f753 | 2556 | *ppdata, data_count, (data_count + *ppdata), |
b6b38f70 | 2557 | end_of_smb, pSMBr); |
0a4b92c0 | 2558 | return -EINVAL; |
790fe579 | 2559 | } else if (parm_count + data_count > pSMBr->ByteCount) { |
b6b38f70 | 2560 | cFYI(1, "parm count and data count larger than SMB"); |
0a4b92c0 SF |
2561 | return -EINVAL; |
2562 | } | |
630f3f0c SF |
2563 | *pdatalen = data_count; |
2564 | *pparmlen = parm_count; | |
0a4b92c0 SF |
2565 | return 0; |
2566 | } | |
2567 | ||
1da177e4 LT |
2568 | int |
2569 | CIFSSMBQueryReparseLinkInfo(const int xid, struct cifsTconInfo *tcon, | |
2570 | const unsigned char *searchName, | |
50c2f753 | 2571 | char *symlinkinfo, const int buflen, __u16 fid, |
1da177e4 LT |
2572 | const struct nls_table *nls_codepage) |
2573 | { | |
2574 | int rc = 0; | |
2575 | int bytes_returned; | |
50c2f753 SF |
2576 | struct smb_com_transaction_ioctl_req *pSMB; |
2577 | struct smb_com_transaction_ioctl_rsp *pSMBr; | |
1da177e4 | 2578 | |
b6b38f70 | 2579 | cFYI(1, "In Windows reparse style QueryLink for path %s", searchName); |
1da177e4 LT |
2580 | rc = smb_init(SMB_COM_NT_TRANSACT, 23, tcon, (void **) &pSMB, |
2581 | (void **) &pSMBr); | |
2582 | if (rc) | |
2583 | return rc; | |
2584 | ||
2585 | pSMB->TotalParameterCount = 0 ; | |
2586 | pSMB->TotalDataCount = 0; | |
2587 | pSMB->MaxParameterCount = cpu_to_le32(2); | |
2588 | /* BB find exact data count max from sess structure BB */ | |
0a4b92c0 SF |
2589 | pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf - |
2590 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
1da177e4 LT |
2591 | pSMB->MaxSetupCount = 4; |
2592 | pSMB->Reserved = 0; | |
2593 | pSMB->ParameterOffset = 0; | |
2594 | pSMB->DataCount = 0; | |
2595 | pSMB->DataOffset = 0; | |
2596 | pSMB->SetupCount = 4; | |
2597 | pSMB->SubCommand = cpu_to_le16(NT_TRANSACT_IOCTL); | |
2598 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2599 | pSMB->FunctionCode = cpu_to_le32(FSCTL_GET_REPARSE_POINT); | |
2600 | pSMB->IsFsctl = 1; /* FSCTL */ | |
2601 | pSMB->IsRootFlag = 0; | |
2602 | pSMB->Fid = fid; /* file handle always le */ | |
2603 | pSMB->ByteCount = 0; | |
2604 | ||
2605 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2606 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2607 | if (rc) { | |
b6b38f70 | 2608 | cFYI(1, "Send error in QueryReparseLinkInfo = %d", rc); |
1da177e4 LT |
2609 | } else { /* decode response */ |
2610 | __u32 data_offset = le32_to_cpu(pSMBr->DataOffset); | |
2611 | __u32 data_count = le32_to_cpu(pSMBr->DataCount); | |
afe48c31 | 2612 | if ((pSMBr->ByteCount < 2) || (data_offset > 512)) { |
1da177e4 LT |
2613 | /* BB also check enough total bytes returned */ |
2614 | rc = -EIO; /* bad smb */ | |
afe48c31 SF |
2615 | goto qreparse_out; |
2616 | } | |
2617 | if (data_count && (data_count < 2048)) { | |
2618 | char *end_of_smb = 2 /* sizeof byte count */ + | |
2619 | pSMBr->ByteCount + (char *)&pSMBr->ByteCount; | |
1da177e4 | 2620 | |
afe48c31 | 2621 | struct reparse_data *reparse_buf = |
50c2f753 SF |
2622 | (struct reparse_data *) |
2623 | ((char *)&pSMBr->hdr.Protocol | |
2624 | + data_offset); | |
afe48c31 SF |
2625 | if ((char *)reparse_buf >= end_of_smb) { |
2626 | rc = -EIO; | |
2627 | goto qreparse_out; | |
2628 | } | |
2629 | if ((reparse_buf->LinkNamesBuf + | |
2630 | reparse_buf->TargetNameOffset + | |
2631 | reparse_buf->TargetNameLen) > end_of_smb) { | |
b6b38f70 | 2632 | cFYI(1, "reparse buf beyond SMB"); |
afe48c31 SF |
2633 | rc = -EIO; |
2634 | goto qreparse_out; | |
2635 | } | |
50c2f753 | 2636 | |
afe48c31 SF |
2637 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { |
2638 | cifs_from_ucs2(symlinkinfo, (__le16 *) | |
50c2f753 SF |
2639 | (reparse_buf->LinkNamesBuf + |
2640 | reparse_buf->TargetNameOffset), | |
afe48c31 SF |
2641 | buflen, |
2642 | reparse_buf->TargetNameLen, | |
2643 | nls_codepage, 0); | |
2644 | } else { /* ASCII names */ | |
2645 | strncpy(symlinkinfo, | |
2646 | reparse_buf->LinkNamesBuf + | |
2647 | reparse_buf->TargetNameOffset, | |
2648 | min_t(const int, buflen, | |
2649 | reparse_buf->TargetNameLen)); | |
1da177e4 | 2650 | } |
afe48c31 SF |
2651 | } else { |
2652 | rc = -EIO; | |
b6b38f70 JP |
2653 | cFYI(1, "Invalid return data count on " |
2654 | "get reparse info ioctl"); | |
1da177e4 | 2655 | } |
afe48c31 SF |
2656 | symlinkinfo[buflen] = 0; /* just in case so the caller |
2657 | does not go off the end of the buffer */ | |
b6b38f70 | 2658 | cFYI(1, "readlink result - %s", symlinkinfo); |
1da177e4 | 2659 | } |
989c7e51 | 2660 | |
1da177e4 | 2661 | qreparse_out: |
4a6d87f1 | 2662 | cifs_buf_release(pSMB); |
1da177e4 LT |
2663 | |
2664 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
2665 | since file handle passed in no longer valid */ | |
2666 | ||
2667 | return rc; | |
2668 | } | |
afe48c31 | 2669 | #endif /* CIFS_EXPERIMENTAL */ |
1da177e4 LT |
2670 | |
2671 | #ifdef CONFIG_CIFS_POSIX | |
2672 | ||
2673 | /*Convert an Access Control Entry from wire format to local POSIX xattr format*/ | |
50c2f753 SF |
2674 | static void cifs_convert_ace(posix_acl_xattr_entry *ace, |
2675 | struct cifs_posix_ace *cifs_ace) | |
1da177e4 LT |
2676 | { |
2677 | /* u8 cifs fields do not need le conversion */ | |
ff7feac9 SF |
2678 | ace->e_perm = cpu_to_le16(cifs_ace->cifs_e_perm); |
2679 | ace->e_tag = cpu_to_le16(cifs_ace->cifs_e_tag); | |
2680 | ace->e_id = cpu_to_le32(le64_to_cpu(cifs_ace->cifs_uid)); | |
b6b38f70 | 2681 | /* cFYI(1, "perm %d tag %d id %d",ace->e_perm,ace->e_tag,ace->e_id); */ |
1da177e4 LT |
2682 | |
2683 | return; | |
2684 | } | |
2685 | ||
2686 | /* Convert ACL from CIFS POSIX wire format to local Linux POSIX ACL xattr */ | |
50c2f753 SF |
2687 | static int cifs_copy_posix_acl(char *trgt, char *src, const int buflen, |
2688 | const int acl_type, const int size_of_data_area) | |
1da177e4 LT |
2689 | { |
2690 | int size = 0; | |
2691 | int i; | |
2692 | __u16 count; | |
50c2f753 SF |
2693 | struct cifs_posix_ace *pACE; |
2694 | struct cifs_posix_acl *cifs_acl = (struct cifs_posix_acl *)src; | |
2695 | posix_acl_xattr_header *local_acl = (posix_acl_xattr_header *)trgt; | |
1da177e4 LT |
2696 | |
2697 | if (le16_to_cpu(cifs_acl->version) != CIFS_ACL_VERSION) | |
2698 | return -EOPNOTSUPP; | |
2699 | ||
790fe579 | 2700 | if (acl_type & ACL_TYPE_ACCESS) { |
1da177e4 LT |
2701 | count = le16_to_cpu(cifs_acl->access_entry_count); |
2702 | pACE = &cifs_acl->ace_array[0]; | |
2703 | size = sizeof(struct cifs_posix_acl); | |
2704 | size += sizeof(struct cifs_posix_ace) * count; | |
2705 | /* check if we would go beyond end of SMB */ | |
790fe579 | 2706 | if (size_of_data_area < size) { |
b6b38f70 JP |
2707 | cFYI(1, "bad CIFS POSIX ACL size %d vs. %d", |
2708 | size_of_data_area, size); | |
1da177e4 LT |
2709 | return -EINVAL; |
2710 | } | |
790fe579 | 2711 | } else if (acl_type & ACL_TYPE_DEFAULT) { |
1da177e4 LT |
2712 | count = le16_to_cpu(cifs_acl->access_entry_count); |
2713 | size = sizeof(struct cifs_posix_acl); | |
2714 | size += sizeof(struct cifs_posix_ace) * count; | |
2715 | /* skip past access ACEs to get to default ACEs */ | |
2716 | pACE = &cifs_acl->ace_array[count]; | |
2717 | count = le16_to_cpu(cifs_acl->default_entry_count); | |
2718 | size += sizeof(struct cifs_posix_ace) * count; | |
2719 | /* check if we would go beyond end of SMB */ | |
790fe579 | 2720 | if (size_of_data_area < size) |
1da177e4 LT |
2721 | return -EINVAL; |
2722 | } else { | |
2723 | /* illegal type */ | |
2724 | return -EINVAL; | |
2725 | } | |
2726 | ||
2727 | size = posix_acl_xattr_size(count); | |
790fe579 | 2728 | if ((buflen == 0) || (local_acl == NULL)) { |
50c2f753 | 2729 | /* used to query ACL EA size */ |
790fe579 | 2730 | } else if (size > buflen) { |
1da177e4 LT |
2731 | return -ERANGE; |
2732 | } else /* buffer big enough */ { | |
ff7feac9 | 2733 | local_acl->a_version = cpu_to_le32(POSIX_ACL_XATTR_VERSION); |
50c2f753 SF |
2734 | for (i = 0; i < count ; i++) { |
2735 | cifs_convert_ace(&local_acl->a_entries[i], pACE); | |
2736 | pACE++; | |
1da177e4 LT |
2737 | } |
2738 | } | |
2739 | return size; | |
2740 | } | |
2741 | ||
50c2f753 SF |
2742 | static __u16 convert_ace_to_cifs_ace(struct cifs_posix_ace *cifs_ace, |
2743 | const posix_acl_xattr_entry *local_ace) | |
1da177e4 LT |
2744 | { |
2745 | __u16 rc = 0; /* 0 = ACL converted ok */ | |
2746 | ||
ff7feac9 SF |
2747 | cifs_ace->cifs_e_perm = le16_to_cpu(local_ace->e_perm); |
2748 | cifs_ace->cifs_e_tag = le16_to_cpu(local_ace->e_tag); | |
1da177e4 | 2749 | /* BB is there a better way to handle the large uid? */ |
790fe579 | 2750 | if (local_ace->e_id == cpu_to_le32(-1)) { |
1da177e4 LT |
2751 | /* Probably no need to le convert -1 on any arch but can not hurt */ |
2752 | cifs_ace->cifs_uid = cpu_to_le64(-1); | |
50c2f753 | 2753 | } else |
ff7feac9 | 2754 | cifs_ace->cifs_uid = cpu_to_le64(le32_to_cpu(local_ace->e_id)); |
b6b38f70 | 2755 | /*cFYI(1, "perm %d tag %d id %d",ace->e_perm,ace->e_tag,ace->e_id);*/ |
1da177e4 LT |
2756 | return rc; |
2757 | } | |
2758 | ||
2759 | /* Convert ACL from local Linux POSIX xattr to CIFS POSIX ACL wire format */ | |
50c2f753 SF |
2760 | static __u16 ACL_to_cifs_posix(char *parm_data, const char *pACL, |
2761 | const int buflen, const int acl_type) | |
1da177e4 LT |
2762 | { |
2763 | __u16 rc = 0; | |
50c2f753 SF |
2764 | struct cifs_posix_acl *cifs_acl = (struct cifs_posix_acl *)parm_data; |
2765 | posix_acl_xattr_header *local_acl = (posix_acl_xattr_header *)pACL; | |
1da177e4 LT |
2766 | int count; |
2767 | int i; | |
2768 | ||
790fe579 | 2769 | if ((buflen == 0) || (pACL == NULL) || (cifs_acl == NULL)) |
1da177e4 LT |
2770 | return 0; |
2771 | ||
2772 | count = posix_acl_xattr_count((size_t)buflen); | |
b6b38f70 | 2773 | cFYI(1, "setting acl with %d entries from buf of length %d and " |
63135e08 | 2774 | "version of %d", |
b6b38f70 | 2775 | count, buflen, le32_to_cpu(local_acl->a_version)); |
790fe579 | 2776 | if (le32_to_cpu(local_acl->a_version) != 2) { |
b6b38f70 JP |
2777 | cFYI(1, "unknown POSIX ACL version %d", |
2778 | le32_to_cpu(local_acl->a_version)); | |
1da177e4 LT |
2779 | return 0; |
2780 | } | |
2781 | cifs_acl->version = cpu_to_le16(1); | |
790fe579 | 2782 | if (acl_type == ACL_TYPE_ACCESS) |
ff7feac9 | 2783 | cifs_acl->access_entry_count = cpu_to_le16(count); |
790fe579 | 2784 | else if (acl_type == ACL_TYPE_DEFAULT) |
ff7feac9 | 2785 | cifs_acl->default_entry_count = cpu_to_le16(count); |
1da177e4 | 2786 | else { |
b6b38f70 | 2787 | cFYI(1, "unknown ACL type %d", acl_type); |
1da177e4 LT |
2788 | return 0; |
2789 | } | |
50c2f753 | 2790 | for (i = 0; i < count; i++) { |
1da177e4 LT |
2791 | rc = convert_ace_to_cifs_ace(&cifs_acl->ace_array[i], |
2792 | &local_acl->a_entries[i]); | |
790fe579 | 2793 | if (rc != 0) { |
1da177e4 LT |
2794 | /* ACE not converted */ |
2795 | break; | |
2796 | } | |
2797 | } | |
790fe579 | 2798 | if (rc == 0) { |
1da177e4 LT |
2799 | rc = (__u16)(count * sizeof(struct cifs_posix_ace)); |
2800 | rc += sizeof(struct cifs_posix_acl); | |
2801 | /* BB add check to make sure ACL does not overflow SMB */ | |
2802 | } | |
2803 | return rc; | |
2804 | } | |
2805 | ||
2806 | int | |
2807 | CIFSSMBGetPosixACL(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 SF |
2808 | const unsigned char *searchName, |
2809 | char *acl_inf, const int buflen, const int acl_type, | |
2810 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
2811 | { |
2812 | /* SMB_QUERY_POSIX_ACL */ | |
2813 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
2814 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
2815 | int rc = 0; | |
2816 | int bytes_returned; | |
2817 | int name_len; | |
2818 | __u16 params, byte_count; | |
50c2f753 | 2819 | |
b6b38f70 | 2820 | cFYI(1, "In GetPosixACL (Unix) for path %s", searchName); |
1da177e4 LT |
2821 | |
2822 | queryAclRetry: | |
2823 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2824 | (void **) &pSMBr); | |
2825 | if (rc) | |
2826 | return rc; | |
50c2f753 | 2827 | |
1da177e4 LT |
2828 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
2829 | name_len = | |
50c2f753 | 2830 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 2831 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2832 | name_len++; /* trailing null */ |
2833 | name_len *= 2; | |
2834 | pSMB->FileName[name_len] = 0; | |
2835 | pSMB->FileName[name_len+1] = 0; | |
50c2f753 | 2836 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2837 | name_len = strnlen(searchName, PATH_MAX); |
2838 | name_len++; /* trailing null */ | |
2839 | strncpy(pSMB->FileName, searchName, name_len); | |
2840 | } | |
2841 | ||
2842 | params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ; | |
2843 | pSMB->TotalDataCount = 0; | |
2844 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
50c2f753 | 2845 | /* BB find exact max data count below from sess structure BB */ |
1da177e4 LT |
2846 | pSMB->MaxDataCount = cpu_to_le16(4000); |
2847 | pSMB->MaxSetupCount = 0; | |
2848 | pSMB->Reserved = 0; | |
2849 | pSMB->Flags = 0; | |
2850 | pSMB->Timeout = 0; | |
2851 | pSMB->Reserved2 = 0; | |
2852 | pSMB->ParameterOffset = cpu_to_le16( | |
50c2f753 SF |
2853 | offsetof(struct smb_com_transaction2_qpi_req, |
2854 | InformationLevel) - 4); | |
1da177e4 LT |
2855 | pSMB->DataCount = 0; |
2856 | pSMB->DataOffset = 0; | |
2857 | pSMB->SetupCount = 1; | |
2858 | pSMB->Reserved3 = 0; | |
2859 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
2860 | byte_count = params + 1 /* pad */ ; | |
2861 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
2862 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2863 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_POSIX_ACL); | |
2864 | pSMB->Reserved4 = 0; | |
2865 | pSMB->hdr.smb_buf_length += byte_count; | |
2866 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2867 | ||
2868 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2869 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
0a4b92c0 | 2870 | cifs_stats_inc(&tcon->num_acl_get); |
1da177e4 | 2871 | if (rc) { |
b6b38f70 | 2872 | cFYI(1, "Send error in Query POSIX ACL = %d", rc); |
1da177e4 LT |
2873 | } else { |
2874 | /* decode response */ | |
50c2f753 | 2875 | |
1da177e4 LT |
2876 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
2877 | if (rc || (pSMBr->ByteCount < 2)) | |
2878 | /* BB also check enough total bytes returned */ | |
2879 | rc = -EIO; /* bad smb */ | |
2880 | else { | |
2881 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
2882 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); | |
2883 | rc = cifs_copy_posix_acl(acl_inf, | |
2884 | (char *)&pSMBr->hdr.Protocol+data_offset, | |
50c2f753 | 2885 | buflen, acl_type, count); |
1da177e4 LT |
2886 | } |
2887 | } | |
2888 | cifs_buf_release(pSMB); | |
2889 | if (rc == -EAGAIN) | |
2890 | goto queryAclRetry; | |
2891 | return rc; | |
2892 | } | |
2893 | ||
2894 | int | |
2895 | CIFSSMBSetPosixACL(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 SF |
2896 | const unsigned char *fileName, |
2897 | const char *local_acl, const int buflen, | |
2898 | const int acl_type, | |
2899 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
2900 | { |
2901 | struct smb_com_transaction2_spi_req *pSMB = NULL; | |
2902 | struct smb_com_transaction2_spi_rsp *pSMBr = NULL; | |
2903 | char *parm_data; | |
2904 | int name_len; | |
2905 | int rc = 0; | |
2906 | int bytes_returned = 0; | |
2907 | __u16 params, byte_count, data_count, param_offset, offset; | |
2908 | ||
b6b38f70 | 2909 | cFYI(1, "In SetPosixACL (Unix) for path %s", fileName); |
1da177e4 LT |
2910 | setAclRetry: |
2911 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
50c2f753 | 2912 | (void **) &pSMBr); |
1da177e4 LT |
2913 | if (rc) |
2914 | return rc; | |
2915 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2916 | name_len = | |
50c2f753 | 2917 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 2918 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2919 | name_len++; /* trailing null */ |
2920 | name_len *= 2; | |
50c2f753 | 2921 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2922 | name_len = strnlen(fileName, PATH_MAX); |
2923 | name_len++; /* trailing null */ | |
2924 | strncpy(pSMB->FileName, fileName, name_len); | |
2925 | } | |
2926 | params = 6 + name_len; | |
2927 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
582d21e5 SF |
2928 | /* BB find max SMB size from sess */ |
2929 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1da177e4 LT |
2930 | pSMB->MaxSetupCount = 0; |
2931 | pSMB->Reserved = 0; | |
2932 | pSMB->Flags = 0; | |
2933 | pSMB->Timeout = 0; | |
2934 | pSMB->Reserved2 = 0; | |
2935 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 2936 | InformationLevel) - 4; |
1da177e4 LT |
2937 | offset = param_offset + params; |
2938 | parm_data = ((char *) &pSMB->hdr.Protocol) + offset; | |
2939 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
2940 | ||
2941 | /* convert to on the wire format for POSIX ACL */ | |
50c2f753 | 2942 | data_count = ACL_to_cifs_posix(parm_data, local_acl, buflen, acl_type); |
1da177e4 | 2943 | |
790fe579 | 2944 | if (data_count == 0) { |
1da177e4 LT |
2945 | rc = -EOPNOTSUPP; |
2946 | goto setACLerrorExit; | |
2947 | } | |
2948 | pSMB->DataOffset = cpu_to_le16(offset); | |
2949 | pSMB->SetupCount = 1; | |
2950 | pSMB->Reserved3 = 0; | |
2951 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
2952 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_POSIX_ACL); | |
2953 | byte_count = 3 /* pad */ + params + data_count; | |
2954 | pSMB->DataCount = cpu_to_le16(data_count); | |
2955 | pSMB->TotalDataCount = pSMB->DataCount; | |
2956 | pSMB->ParameterCount = cpu_to_le16(params); | |
2957 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
2958 | pSMB->Reserved4 = 0; | |
2959 | pSMB->hdr.smb_buf_length += byte_count; | |
2960 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2961 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
50c2f753 | 2962 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
ad7a2926 | 2963 | if (rc) |
b6b38f70 | 2964 | cFYI(1, "Set POSIX ACL returned %d", rc); |
1da177e4 LT |
2965 | |
2966 | setACLerrorExit: | |
2967 | cifs_buf_release(pSMB); | |
2968 | if (rc == -EAGAIN) | |
2969 | goto setAclRetry; | |
2970 | return rc; | |
2971 | } | |
2972 | ||
f654bac2 SF |
2973 | /* BB fix tabs in this function FIXME BB */ |
2974 | int | |
2975 | CIFSGetExtAttr(const int xid, struct cifsTconInfo *tcon, | |
ad7a2926 | 2976 | const int netfid, __u64 *pExtAttrBits, __u64 *pMask) |
f654bac2 | 2977 | { |
50c2f753 SF |
2978 | int rc = 0; |
2979 | struct smb_t2_qfi_req *pSMB = NULL; | |
2980 | struct smb_t2_qfi_rsp *pSMBr = NULL; | |
2981 | int bytes_returned; | |
2982 | __u16 params, byte_count; | |
f654bac2 | 2983 | |
b6b38f70 | 2984 | cFYI(1, "In GetExtAttr"); |
790fe579 SF |
2985 | if (tcon == NULL) |
2986 | return -ENODEV; | |
f654bac2 SF |
2987 | |
2988 | GetExtAttrRetry: | |
790fe579 SF |
2989 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
2990 | (void **) &pSMBr); | |
2991 | if (rc) | |
2992 | return rc; | |
f654bac2 | 2993 | |
ad7a2926 | 2994 | params = 2 /* level */ + 2 /* fid */; |
790fe579 SF |
2995 | pSMB->t2.TotalDataCount = 0; |
2996 | pSMB->t2.MaxParameterCount = cpu_to_le16(4); | |
2997 | /* BB find exact max data count below from sess structure BB */ | |
2998 | pSMB->t2.MaxDataCount = cpu_to_le16(4000); | |
2999 | pSMB->t2.MaxSetupCount = 0; | |
3000 | pSMB->t2.Reserved = 0; | |
3001 | pSMB->t2.Flags = 0; | |
3002 | pSMB->t2.Timeout = 0; | |
3003 | pSMB->t2.Reserved2 = 0; | |
3004 | pSMB->t2.ParameterOffset = cpu_to_le16(offsetof(struct smb_t2_qfi_req, | |
3005 | Fid) - 4); | |
3006 | pSMB->t2.DataCount = 0; | |
3007 | pSMB->t2.DataOffset = 0; | |
3008 | pSMB->t2.SetupCount = 1; | |
3009 | pSMB->t2.Reserved3 = 0; | |
3010 | pSMB->t2.SubCommand = cpu_to_le16(TRANS2_QUERY_FILE_INFORMATION); | |
3011 | byte_count = params + 1 /* pad */ ; | |
3012 | pSMB->t2.TotalParameterCount = cpu_to_le16(params); | |
3013 | pSMB->t2.ParameterCount = pSMB->t2.TotalParameterCount; | |
3014 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_ATTR_FLAGS); | |
3015 | pSMB->Pad = 0; | |
f654bac2 | 3016 | pSMB->Fid = netfid; |
790fe579 SF |
3017 | pSMB->hdr.smb_buf_length += byte_count; |
3018 | pSMB->t2.ByteCount = cpu_to_le16(byte_count); | |
3019 | ||
3020 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3021 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3022 | if (rc) { | |
b6b38f70 | 3023 | cFYI(1, "error %d in GetExtAttr", rc); |
790fe579 SF |
3024 | } else { |
3025 | /* decode response */ | |
3026 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3027 | if (rc || (pSMBr->ByteCount < 2)) | |
3028 | /* BB also check enough total bytes returned */ | |
3029 | /* If rc should we check for EOPNOSUPP and | |
3030 | disable the srvino flag? or in caller? */ | |
3031 | rc = -EIO; /* bad smb */ | |
3032 | else { | |
3033 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
3034 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); | |
3035 | struct file_chattr_info *pfinfo; | |
3036 | /* BB Do we need a cast or hash here ? */ | |
3037 | if (count != 16) { | |
b6b38f70 | 3038 | cFYI(1, "Illegal size ret in GetExtAttr"); |
790fe579 SF |
3039 | rc = -EIO; |
3040 | goto GetExtAttrOut; | |
3041 | } | |
3042 | pfinfo = (struct file_chattr_info *) | |
3043 | (data_offset + (char *) &pSMBr->hdr.Protocol); | |
3044 | *pExtAttrBits = le64_to_cpu(pfinfo->mode); | |
f654bac2 | 3045 | *pMask = le64_to_cpu(pfinfo->mask); |
790fe579 SF |
3046 | } |
3047 | } | |
f654bac2 | 3048 | GetExtAttrOut: |
790fe579 SF |
3049 | cifs_buf_release(pSMB); |
3050 | if (rc == -EAGAIN) | |
3051 | goto GetExtAttrRetry; | |
3052 | return rc; | |
f654bac2 SF |
3053 | } |
3054 | ||
f654bac2 | 3055 | #endif /* CONFIG_POSIX */ |
1da177e4 | 3056 | |
297647c2 | 3057 | #ifdef CONFIG_CIFS_EXPERIMENTAL |
0a4b92c0 SF |
3058 | /* Get Security Descriptor (by handle) from remote server for a file or dir */ |
3059 | int | |
3060 | CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid, | |
630f3f0c | 3061 | struct cifs_ntsd **acl_inf, __u32 *pbuflen) |
0a4b92c0 SF |
3062 | { |
3063 | int rc = 0; | |
3064 | int buf_type = 0; | |
ad7a2926 | 3065 | QUERY_SEC_DESC_REQ *pSMB; |
0a4b92c0 SF |
3066 | struct kvec iov[1]; |
3067 | ||
b6b38f70 | 3068 | cFYI(1, "GetCifsACL"); |
0a4b92c0 | 3069 | |
630f3f0c SF |
3070 | *pbuflen = 0; |
3071 | *acl_inf = NULL; | |
3072 | ||
b9c7a2bb | 3073 | rc = smb_init_nttransact(NT_TRANSACT_QUERY_SECURITY_DESC, 0, |
0a4b92c0 SF |
3074 | 8 /* parm len */, tcon, (void **) &pSMB); |
3075 | if (rc) | |
3076 | return rc; | |
3077 | ||
3078 | pSMB->MaxParameterCount = cpu_to_le32(4); | |
3079 | /* BB TEST with big acls that might need to be e.g. larger than 16K */ | |
3080 | pSMB->MaxSetupCount = 0; | |
3081 | pSMB->Fid = fid; /* file handle always le */ | |
3082 | pSMB->AclFlags = cpu_to_le32(CIFS_ACL_OWNER | CIFS_ACL_GROUP | | |
3083 | CIFS_ACL_DACL); | |
3084 | pSMB->ByteCount = cpu_to_le16(11); /* 3 bytes pad + 8 bytes parm */ | |
3085 | pSMB->hdr.smb_buf_length += 11; | |
3086 | iov[0].iov_base = (char *)pSMB; | |
3087 | iov[0].iov_len = pSMB->hdr.smb_buf_length + 4; | |
3088 | ||
a761ac57 | 3089 | rc = SendReceive2(xid, tcon->ses, iov, 1 /* num iovec */, &buf_type, |
133672ef | 3090 | CIFS_STD_OP); |
0a4b92c0 SF |
3091 | cifs_stats_inc(&tcon->num_acl_get); |
3092 | if (rc) { | |
b6b38f70 | 3093 | cFYI(1, "Send error in QuerySecDesc = %d", rc); |
0a4b92c0 | 3094 | } else { /* decode response */ |
ad7a2926 | 3095 | __le32 *parm; |
630f3f0c SF |
3096 | __u32 parm_len; |
3097 | __u32 acl_len; | |
50c2f753 | 3098 | struct smb_com_ntransact_rsp *pSMBr; |
630f3f0c | 3099 | char *pdata; |
0a4b92c0 SF |
3100 | |
3101 | /* validate_nttransact */ | |
50c2f753 | 3102 | rc = validate_ntransact(iov[0].iov_base, (char **)&parm, |
630f3f0c | 3103 | &pdata, &parm_len, pbuflen); |
790fe579 | 3104 | if (rc) |
0a4b92c0 SF |
3105 | goto qsec_out; |
3106 | pSMBr = (struct smb_com_ntransact_rsp *)iov[0].iov_base; | |
3107 | ||
b6b38f70 | 3108 | cFYI(1, "smb %p parm %p data %p", pSMBr, parm, *acl_inf); |
0a4b92c0 SF |
3109 | |
3110 | if (le32_to_cpu(pSMBr->ParameterCount) != 4) { | |
3111 | rc = -EIO; /* bad smb */ | |
630f3f0c | 3112 | *pbuflen = 0; |
0a4b92c0 SF |
3113 | goto qsec_out; |
3114 | } | |
3115 | ||
3116 | /* BB check that data area is minimum length and as big as acl_len */ | |
3117 | ||
af6f4612 | 3118 | acl_len = le32_to_cpu(*parm); |
630f3f0c | 3119 | if (acl_len != *pbuflen) { |
b6b38f70 JP |
3120 | cERROR(1, "acl length %d does not match %d", |
3121 | acl_len, *pbuflen); | |
630f3f0c SF |
3122 | if (*pbuflen > acl_len) |
3123 | *pbuflen = acl_len; | |
3124 | } | |
0a4b92c0 | 3125 | |
630f3f0c SF |
3126 | /* check if buffer is big enough for the acl |
3127 | header followed by the smallest SID */ | |
3128 | if ((*pbuflen < sizeof(struct cifs_ntsd) + 8) || | |
3129 | (*pbuflen >= 64 * 1024)) { | |
b6b38f70 | 3130 | cERROR(1, "bad acl length %d", *pbuflen); |
630f3f0c SF |
3131 | rc = -EINVAL; |
3132 | *pbuflen = 0; | |
3133 | } else { | |
3134 | *acl_inf = kmalloc(*pbuflen, GFP_KERNEL); | |
3135 | if (*acl_inf == NULL) { | |
3136 | *pbuflen = 0; | |
3137 | rc = -ENOMEM; | |
3138 | } | |
3139 | memcpy(*acl_inf, pdata, *pbuflen); | |
3140 | } | |
0a4b92c0 SF |
3141 | } |
3142 | qsec_out: | |
790fe579 | 3143 | if (buf_type == CIFS_SMALL_BUFFER) |
0a4b92c0 | 3144 | cifs_small_buf_release(iov[0].iov_base); |
790fe579 | 3145 | else if (buf_type == CIFS_LARGE_BUFFER) |
0a4b92c0 | 3146 | cifs_buf_release(iov[0].iov_base); |
4b8f930f | 3147 | /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */ |
0a4b92c0 SF |
3148 | return rc; |
3149 | } | |
97837582 SF |
3150 | |
3151 | int | |
3152 | CIFSSMBSetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid, | |
3153 | struct cifs_ntsd *pntsd, __u32 acllen) | |
3154 | { | |
3155 | __u16 byte_count, param_count, data_count, param_offset, data_offset; | |
3156 | int rc = 0; | |
3157 | int bytes_returned = 0; | |
3158 | SET_SEC_DESC_REQ *pSMB = NULL; | |
3159 | NTRANSACT_RSP *pSMBr = NULL; | |
3160 | ||
3161 | setCifsAclRetry: | |
3162 | rc = smb_init(SMB_COM_NT_TRANSACT, 19, tcon, (void **) &pSMB, | |
3163 | (void **) &pSMBr); | |
3164 | if (rc) | |
3165 | return (rc); | |
3166 | ||
3167 | pSMB->MaxSetupCount = 0; | |
3168 | pSMB->Reserved = 0; | |
3169 | ||
3170 | param_count = 8; | |
3171 | param_offset = offsetof(struct smb_com_transaction_ssec_req, Fid) - 4; | |
3172 | data_count = acllen; | |
3173 | data_offset = param_offset + param_count; | |
3174 | byte_count = 3 /* pad */ + param_count; | |
3175 | ||
3176 | pSMB->DataCount = cpu_to_le32(data_count); | |
3177 | pSMB->TotalDataCount = pSMB->DataCount; | |
3178 | pSMB->MaxParameterCount = cpu_to_le32(4); | |
3179 | pSMB->MaxDataCount = cpu_to_le32(16384); | |
3180 | pSMB->ParameterCount = cpu_to_le32(param_count); | |
3181 | pSMB->ParameterOffset = cpu_to_le32(param_offset); | |
3182 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
3183 | pSMB->DataOffset = cpu_to_le32(data_offset); | |
3184 | pSMB->SetupCount = 0; | |
3185 | pSMB->SubCommand = cpu_to_le16(NT_TRANSACT_SET_SECURITY_DESC); | |
3186 | pSMB->ByteCount = cpu_to_le16(byte_count+data_count); | |
3187 | ||
3188 | pSMB->Fid = fid; /* file handle always le */ | |
3189 | pSMB->Reserved2 = 0; | |
3190 | pSMB->AclFlags = cpu_to_le32(CIFS_ACL_DACL); | |
3191 | ||
3192 | if (pntsd && acllen) { | |
3193 | memcpy((char *) &pSMBr->hdr.Protocol + data_offset, | |
3194 | (char *) pntsd, | |
3195 | acllen); | |
3196 | pSMB->hdr.smb_buf_length += (byte_count + data_count); | |
3197 | ||
3198 | } else | |
3199 | pSMB->hdr.smb_buf_length += byte_count; | |
3200 | ||
3201 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3202 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3203 | ||
b6b38f70 | 3204 | cFYI(1, "SetCIFSACL bytes_returned: %d, rc: %d", bytes_returned, rc); |
97837582 | 3205 | if (rc) |
b6b38f70 | 3206 | cFYI(1, "Set CIFS ACL returned %d", rc); |
97837582 SF |
3207 | cifs_buf_release(pSMB); |
3208 | ||
3209 | if (rc == -EAGAIN) | |
3210 | goto setCifsAclRetry; | |
3211 | ||
3212 | return (rc); | |
3213 | } | |
3214 | ||
297647c2 | 3215 | #endif /* CONFIG_CIFS_EXPERIMENTAL */ |
0a4b92c0 | 3216 | |
6b8edfe0 SF |
3217 | /* Legacy Query Path Information call for lookup to old servers such |
3218 | as Win9x/WinME */ | |
3219 | int SMBQueryInformation(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 SF |
3220 | const unsigned char *searchName, |
3221 | FILE_ALL_INFO *pFinfo, | |
3222 | const struct nls_table *nls_codepage, int remap) | |
6b8edfe0 | 3223 | { |
ad7a2926 SF |
3224 | QUERY_INFORMATION_REQ *pSMB; |
3225 | QUERY_INFORMATION_RSP *pSMBr; | |
6b8edfe0 SF |
3226 | int rc = 0; |
3227 | int bytes_returned; | |
3228 | int name_len; | |
3229 | ||
b6b38f70 | 3230 | cFYI(1, "In SMBQPath path %s", searchName); |
6b8edfe0 SF |
3231 | QInfRetry: |
3232 | rc = smb_init(SMB_COM_QUERY_INFORMATION, 0, tcon, (void **) &pSMB, | |
50c2f753 | 3233 | (void **) &pSMBr); |
6b8edfe0 SF |
3234 | if (rc) |
3235 | return rc; | |
3236 | ||
3237 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3238 | name_len = | |
50c2f753 SF |
3239 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
3240 | PATH_MAX, nls_codepage, remap); | |
6b8edfe0 SF |
3241 | name_len++; /* trailing null */ |
3242 | name_len *= 2; | |
50c2f753 | 3243 | } else { |
6b8edfe0 SF |
3244 | name_len = strnlen(searchName, PATH_MAX); |
3245 | name_len++; /* trailing null */ | |
3246 | strncpy(pSMB->FileName, searchName, name_len); | |
3247 | } | |
3248 | pSMB->BufferFormat = 0x04; | |
50c2f753 | 3249 | name_len++; /* account for buffer type byte */ |
6b8edfe0 SF |
3250 | pSMB->hdr.smb_buf_length += (__u16) name_len; |
3251 | pSMB->ByteCount = cpu_to_le16(name_len); | |
3252 | ||
3253 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
50c2f753 | 3254 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
6b8edfe0 | 3255 | if (rc) { |
b6b38f70 | 3256 | cFYI(1, "Send error in QueryInfo = %d", rc); |
ad7a2926 | 3257 | } else if (pFinfo) { |
1bd5bbcb SF |
3258 | struct timespec ts; |
3259 | __u32 time = le32_to_cpu(pSMBr->last_write_time); | |
ad7a2926 SF |
3260 | |
3261 | /* decode response */ | |
1bd5bbcb | 3262 | /* BB FIXME - add time zone adjustment BB */ |
6b8edfe0 | 3263 | memset(pFinfo, 0, sizeof(FILE_ALL_INFO)); |
1bd5bbcb SF |
3264 | ts.tv_nsec = 0; |
3265 | ts.tv_sec = time; | |
3266 | /* decode time fields */ | |
733f99ac | 3267 | pFinfo->ChangeTime = cpu_to_le64(cifs_UnixTimeToNT(ts)); |
1bd5bbcb SF |
3268 | pFinfo->LastWriteTime = pFinfo->ChangeTime; |
3269 | pFinfo->LastAccessTime = 0; | |
70ca734a SF |
3270 | pFinfo->AllocationSize = |
3271 | cpu_to_le64(le32_to_cpu(pSMBr->size)); | |
3272 | pFinfo->EndOfFile = pFinfo->AllocationSize; | |
3273 | pFinfo->Attributes = | |
3274 | cpu_to_le32(le16_to_cpu(pSMBr->attr)); | |
6b8edfe0 SF |
3275 | } else |
3276 | rc = -EIO; /* bad buffer passed in */ | |
3277 | ||
3278 | cifs_buf_release(pSMB); | |
3279 | ||
3280 | if (rc == -EAGAIN) | |
3281 | goto QInfRetry; | |
3282 | ||
3283 | return rc; | |
3284 | } | |
3285 | ||
bcd5357f JL |
3286 | int |
3287 | CIFSSMBQFileInfo(const int xid, struct cifsTconInfo *tcon, | |
3288 | u16 netfid, FILE_ALL_INFO *pFindData) | |
3289 | { | |
3290 | struct smb_t2_qfi_req *pSMB = NULL; | |
3291 | struct smb_t2_qfi_rsp *pSMBr = NULL; | |
3292 | int rc = 0; | |
3293 | int bytes_returned; | |
3294 | __u16 params, byte_count; | |
3295 | ||
3296 | QFileInfoRetry: | |
3297 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3298 | (void **) &pSMBr); | |
3299 | if (rc) | |
3300 | return rc; | |
3301 | ||
3302 | params = 2 /* level */ + 2 /* fid */; | |
3303 | pSMB->t2.TotalDataCount = 0; | |
3304 | pSMB->t2.MaxParameterCount = cpu_to_le16(4); | |
3305 | /* BB find exact max data count below from sess structure BB */ | |
3306 | pSMB->t2.MaxDataCount = cpu_to_le16(CIFSMaxBufSize); | |
3307 | pSMB->t2.MaxSetupCount = 0; | |
3308 | pSMB->t2.Reserved = 0; | |
3309 | pSMB->t2.Flags = 0; | |
3310 | pSMB->t2.Timeout = 0; | |
3311 | pSMB->t2.Reserved2 = 0; | |
3312 | pSMB->t2.ParameterOffset = cpu_to_le16(offsetof(struct smb_t2_qfi_req, | |
3313 | Fid) - 4); | |
3314 | pSMB->t2.DataCount = 0; | |
3315 | pSMB->t2.DataOffset = 0; | |
3316 | pSMB->t2.SetupCount = 1; | |
3317 | pSMB->t2.Reserved3 = 0; | |
3318 | pSMB->t2.SubCommand = cpu_to_le16(TRANS2_QUERY_FILE_INFORMATION); | |
3319 | byte_count = params + 1 /* pad */ ; | |
3320 | pSMB->t2.TotalParameterCount = cpu_to_le16(params); | |
3321 | pSMB->t2.ParameterCount = pSMB->t2.TotalParameterCount; | |
3322 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_ALL_INFO); | |
3323 | pSMB->Pad = 0; | |
3324 | pSMB->Fid = netfid; | |
3325 | pSMB->hdr.smb_buf_length += byte_count; | |
6b8edfe0 | 3326 | |
bcd5357f JL |
3327 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
3328 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3329 | if (rc) { | |
f19159dc | 3330 | cFYI(1, "Send error in QPathInfo = %d", rc); |
bcd5357f JL |
3331 | } else { /* decode response */ |
3332 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
6b8edfe0 | 3333 | |
bcd5357f JL |
3334 | if (rc) /* BB add auto retry on EOPNOTSUPP? */ |
3335 | rc = -EIO; | |
3336 | else if (pSMBr->ByteCount < 40) | |
3337 | rc = -EIO; /* bad smb */ | |
3338 | else if (pFindData) { | |
3339 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
3340 | memcpy((char *) pFindData, | |
3341 | (char *) &pSMBr->hdr.Protocol + | |
3342 | data_offset, sizeof(FILE_ALL_INFO)); | |
3343 | } else | |
3344 | rc = -ENOMEM; | |
3345 | } | |
3346 | cifs_buf_release(pSMB); | |
3347 | if (rc == -EAGAIN) | |
3348 | goto QFileInfoRetry; | |
6b8edfe0 | 3349 | |
bcd5357f JL |
3350 | return rc; |
3351 | } | |
6b8edfe0 | 3352 | |
1da177e4 LT |
3353 | int |
3354 | CIFSSMBQPathInfo(const int xid, struct cifsTconInfo *tcon, | |
3355 | const unsigned char *searchName, | |
ad7a2926 | 3356 | FILE_ALL_INFO *pFindData, |
acf1a1b1 | 3357 | int legacy /* old style infolevel */, |
737b758c | 3358 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
3359 | { |
3360 | /* level 263 SMB_QUERY_FILE_ALL_INFO */ | |
3361 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
3362 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
3363 | int rc = 0; | |
3364 | int bytes_returned; | |
3365 | int name_len; | |
3366 | __u16 params, byte_count; | |
3367 | ||
b6b38f70 | 3368 | /* cFYI(1, "In QPathInfo path %s", searchName); */ |
1da177e4 LT |
3369 | QPathInfoRetry: |
3370 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3371 | (void **) &pSMBr); | |
3372 | if (rc) | |
3373 | return rc; | |
3374 | ||
3375 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3376 | name_len = | |
50c2f753 | 3377 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 3378 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
3379 | name_len++; /* trailing null */ |
3380 | name_len *= 2; | |
50c2f753 | 3381 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
3382 | name_len = strnlen(searchName, PATH_MAX); |
3383 | name_len++; /* trailing null */ | |
3384 | strncpy(pSMB->FileName, searchName, name_len); | |
3385 | } | |
3386 | ||
50c2f753 | 3387 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */; |
1da177e4 LT |
3388 | pSMB->TotalDataCount = 0; |
3389 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
582d21e5 SF |
3390 | /* BB find exact max SMB PDU from sess structure BB */ |
3391 | pSMB->MaxDataCount = cpu_to_le16(4000); | |
1da177e4 LT |
3392 | pSMB->MaxSetupCount = 0; |
3393 | pSMB->Reserved = 0; | |
3394 | pSMB->Flags = 0; | |
3395 | pSMB->Timeout = 0; | |
3396 | pSMB->Reserved2 = 0; | |
3397 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 3398 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
1da177e4 LT |
3399 | pSMB->DataCount = 0; |
3400 | pSMB->DataOffset = 0; | |
3401 | pSMB->SetupCount = 1; | |
3402 | pSMB->Reserved3 = 0; | |
3403 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
3404 | byte_count = params + 1 /* pad */ ; | |
3405 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3406 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
790fe579 | 3407 | if (legacy) |
acf1a1b1 SF |
3408 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_STANDARD); |
3409 | else | |
3410 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_ALL_INFO); | |
1da177e4 LT |
3411 | pSMB->Reserved4 = 0; |
3412 | pSMB->hdr.smb_buf_length += byte_count; | |
3413 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3414 | ||
3415 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3416 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3417 | if (rc) { | |
b6b38f70 | 3418 | cFYI(1, "Send error in QPathInfo = %d", rc); |
1da177e4 LT |
3419 | } else { /* decode response */ |
3420 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3421 | ||
acf1a1b1 SF |
3422 | if (rc) /* BB add auto retry on EOPNOTSUPP? */ |
3423 | rc = -EIO; | |
50c2f753 | 3424 | else if (!legacy && (pSMBr->ByteCount < 40)) |
1da177e4 | 3425 | rc = -EIO; /* bad smb */ |
790fe579 | 3426 | else if (legacy && (pSMBr->ByteCount < 24)) |
50c2f753 SF |
3427 | rc = -EIO; /* 24 or 26 expected but we do not read |
3428 | last field */ | |
3429 | else if (pFindData) { | |
acf1a1b1 | 3430 | int size; |
1da177e4 | 3431 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
ad7a2926 SF |
3432 | |
3433 | /* On legacy responses we do not read the last field, | |
3434 | EAsize, fortunately since it varies by subdialect and | |
3435 | also note it differs on Set vs. Get, ie two bytes or 4 | |
3436 | bytes depending but we don't care here */ | |
3437 | if (legacy) | |
acf1a1b1 SF |
3438 | size = sizeof(FILE_INFO_STANDARD); |
3439 | else | |
3440 | size = sizeof(FILE_ALL_INFO); | |
1da177e4 LT |
3441 | memcpy((char *) pFindData, |
3442 | (char *) &pSMBr->hdr.Protocol + | |
acf1a1b1 | 3443 | data_offset, size); |
1da177e4 LT |
3444 | } else |
3445 | rc = -ENOMEM; | |
3446 | } | |
3447 | cifs_buf_release(pSMB); | |
3448 | if (rc == -EAGAIN) | |
3449 | goto QPathInfoRetry; | |
3450 | ||
3451 | return rc; | |
3452 | } | |
3453 | ||
c8634fd3 JL |
3454 | int |
3455 | CIFSSMBUnixQFileInfo(const int xid, struct cifsTconInfo *tcon, | |
3456 | u16 netfid, FILE_UNIX_BASIC_INFO *pFindData) | |
3457 | { | |
3458 | struct smb_t2_qfi_req *pSMB = NULL; | |
3459 | struct smb_t2_qfi_rsp *pSMBr = NULL; | |
3460 | int rc = 0; | |
3461 | int bytes_returned; | |
3462 | __u16 params, byte_count; | |
3463 | ||
3464 | UnixQFileInfoRetry: | |
3465 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3466 | (void **) &pSMBr); | |
3467 | if (rc) | |
3468 | return rc; | |
3469 | ||
3470 | params = 2 /* level */ + 2 /* fid */; | |
3471 | pSMB->t2.TotalDataCount = 0; | |
3472 | pSMB->t2.MaxParameterCount = cpu_to_le16(4); | |
3473 | /* BB find exact max data count below from sess structure BB */ | |
3474 | pSMB->t2.MaxDataCount = cpu_to_le16(CIFSMaxBufSize); | |
3475 | pSMB->t2.MaxSetupCount = 0; | |
3476 | pSMB->t2.Reserved = 0; | |
3477 | pSMB->t2.Flags = 0; | |
3478 | pSMB->t2.Timeout = 0; | |
3479 | pSMB->t2.Reserved2 = 0; | |
3480 | pSMB->t2.ParameterOffset = cpu_to_le16(offsetof(struct smb_t2_qfi_req, | |
3481 | Fid) - 4); | |
3482 | pSMB->t2.DataCount = 0; | |
3483 | pSMB->t2.DataOffset = 0; | |
3484 | pSMB->t2.SetupCount = 1; | |
3485 | pSMB->t2.Reserved3 = 0; | |
3486 | pSMB->t2.SubCommand = cpu_to_le16(TRANS2_QUERY_FILE_INFORMATION); | |
3487 | byte_count = params + 1 /* pad */ ; | |
3488 | pSMB->t2.TotalParameterCount = cpu_to_le16(params); | |
3489 | pSMB->t2.ParameterCount = pSMB->t2.TotalParameterCount; | |
3490 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_UNIX_BASIC); | |
3491 | pSMB->Pad = 0; | |
3492 | pSMB->Fid = netfid; | |
3493 | pSMB->hdr.smb_buf_length += byte_count; | |
3494 | ||
3495 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3496 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3497 | if (rc) { | |
f19159dc | 3498 | cFYI(1, "Send error in QPathInfo = %d", rc); |
c8634fd3 JL |
3499 | } else { /* decode response */ |
3500 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3501 | ||
3502 | if (rc || (pSMBr->ByteCount < sizeof(FILE_UNIX_BASIC_INFO))) { | |
f19159dc | 3503 | cERROR(1, "Malformed FILE_UNIX_BASIC_INFO response.\n" |
c8634fd3 | 3504 | "Unix Extensions can be disabled on mount " |
f19159dc | 3505 | "by specifying the nosfu mount option."); |
c8634fd3 JL |
3506 | rc = -EIO; /* bad smb */ |
3507 | } else { | |
3508 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
3509 | memcpy((char *) pFindData, | |
3510 | (char *) &pSMBr->hdr.Protocol + | |
3511 | data_offset, | |
3512 | sizeof(FILE_UNIX_BASIC_INFO)); | |
3513 | } | |
3514 | } | |
3515 | ||
3516 | cifs_buf_release(pSMB); | |
3517 | if (rc == -EAGAIN) | |
3518 | goto UnixQFileInfoRetry; | |
3519 | ||
3520 | return rc; | |
3521 | } | |
3522 | ||
1da177e4 LT |
3523 | int |
3524 | CIFSSMBUnixQPathInfo(const int xid, struct cifsTconInfo *tcon, | |
3525 | const unsigned char *searchName, | |
582d21e5 | 3526 | FILE_UNIX_BASIC_INFO *pFindData, |
737b758c | 3527 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
3528 | { |
3529 | /* SMB_QUERY_FILE_UNIX_BASIC */ | |
3530 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
3531 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
3532 | int rc = 0; | |
3533 | int bytes_returned = 0; | |
3534 | int name_len; | |
3535 | __u16 params, byte_count; | |
3536 | ||
b6b38f70 | 3537 | cFYI(1, "In QPathInfo (Unix) the path %s", searchName); |
1da177e4 LT |
3538 | UnixQPathInfoRetry: |
3539 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3540 | (void **) &pSMBr); | |
3541 | if (rc) | |
3542 | return rc; | |
3543 | ||
3544 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3545 | name_len = | |
b1a45695 | 3546 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 3547 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
3548 | name_len++; /* trailing null */ |
3549 | name_len *= 2; | |
50c2f753 | 3550 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
3551 | name_len = strnlen(searchName, PATH_MAX); |
3552 | name_len++; /* trailing null */ | |
3553 | strncpy(pSMB->FileName, searchName, name_len); | |
3554 | } | |
3555 | ||
50c2f753 | 3556 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */; |
1da177e4 LT |
3557 | pSMB->TotalDataCount = 0; |
3558 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3559 | /* BB find exact max SMB PDU from sess structure BB */ | |
50c2f753 | 3560 | pSMB->MaxDataCount = cpu_to_le16(4000); |
1da177e4 LT |
3561 | pSMB->MaxSetupCount = 0; |
3562 | pSMB->Reserved = 0; | |
3563 | pSMB->Flags = 0; | |
3564 | pSMB->Timeout = 0; | |
3565 | pSMB->Reserved2 = 0; | |
3566 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 3567 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
1da177e4 LT |
3568 | pSMB->DataCount = 0; |
3569 | pSMB->DataOffset = 0; | |
3570 | pSMB->SetupCount = 1; | |
3571 | pSMB->Reserved3 = 0; | |
3572 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
3573 | byte_count = params + 1 /* pad */ ; | |
3574 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3575 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3576 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_UNIX_BASIC); | |
3577 | pSMB->Reserved4 = 0; | |
3578 | pSMB->hdr.smb_buf_length += byte_count; | |
3579 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3580 | ||
3581 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3582 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3583 | if (rc) { | |
b6b38f70 | 3584 | cFYI(1, "Send error in QPathInfo = %d", rc); |
1da177e4 LT |
3585 | } else { /* decode response */ |
3586 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3587 | ||
3588 | if (rc || (pSMBr->ByteCount < sizeof(FILE_UNIX_BASIC_INFO))) { | |
b6b38f70 | 3589 | cERROR(1, "Malformed FILE_UNIX_BASIC_INFO response.\n" |
1e71f25d | 3590 | "Unix Extensions can be disabled on mount " |
b6b38f70 | 3591 | "by specifying the nosfu mount option."); |
1da177e4 LT |
3592 | rc = -EIO; /* bad smb */ |
3593 | } else { | |
3594 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
3595 | memcpy((char *) pFindData, | |
3596 | (char *) &pSMBr->hdr.Protocol + | |
3597 | data_offset, | |
630f3f0c | 3598 | sizeof(FILE_UNIX_BASIC_INFO)); |
1da177e4 LT |
3599 | } |
3600 | } | |
3601 | cifs_buf_release(pSMB); | |
3602 | if (rc == -EAGAIN) | |
3603 | goto UnixQPathInfoRetry; | |
3604 | ||
3605 | return rc; | |
3606 | } | |
3607 | ||
1da177e4 LT |
3608 | /* xid, tcon, searchName and codepage are input parms, rest are returned */ |
3609 | int | |
3610 | CIFSFindFirst(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 | 3611 | const char *searchName, |
1da177e4 | 3612 | const struct nls_table *nls_codepage, |
50c2f753 SF |
3613 | __u16 *pnetfid, |
3614 | struct cifs_search_info *psrch_inf, int remap, const char dirsep) | |
1da177e4 LT |
3615 | { |
3616 | /* level 257 SMB_ */ | |
3617 | TRANSACTION2_FFIRST_REQ *pSMB = NULL; | |
3618 | TRANSACTION2_FFIRST_RSP *pSMBr = NULL; | |
ad7a2926 | 3619 | T2_FFIRST_RSP_PARMS *parms; |
1da177e4 LT |
3620 | int rc = 0; |
3621 | int bytes_returned = 0; | |
3622 | int name_len; | |
3623 | __u16 params, byte_count; | |
3624 | ||
b6b38f70 | 3625 | cFYI(1, "In FindFirst for %s", searchName); |
1da177e4 LT |
3626 | |
3627 | findFirstRetry: | |
3628 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3629 | (void **) &pSMBr); | |
3630 | if (rc) | |
3631 | return rc; | |
3632 | ||
3633 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3634 | name_len = | |
50c2f753 | 3635 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c SF |
3636 | PATH_MAX, nls_codepage, remap); |
3637 | /* We can not add the asterik earlier in case | |
3638 | it got remapped to 0xF03A as if it were part of the | |
3639 | directory name instead of a wildcard */ | |
1da177e4 | 3640 | name_len *= 2; |
ac67055e | 3641 | pSMB->FileName[name_len] = dirsep; |
737b758c SF |
3642 | pSMB->FileName[name_len+1] = 0; |
3643 | pSMB->FileName[name_len+2] = '*'; | |
3644 | pSMB->FileName[name_len+3] = 0; | |
3645 | name_len += 4; /* now the trailing null */ | |
1da177e4 LT |
3646 | pSMB->FileName[name_len] = 0; /* null terminate just in case */ |
3647 | pSMB->FileName[name_len+1] = 0; | |
737b758c | 3648 | name_len += 2; |
1da177e4 LT |
3649 | } else { /* BB add check for overrun of SMB buf BB */ |
3650 | name_len = strnlen(searchName, PATH_MAX); | |
1da177e4 | 3651 | /* BB fix here and in unicode clause above ie |
790fe579 | 3652 | if (name_len > buffersize-header) |
1da177e4 LT |
3653 | free buffer exit; BB */ |
3654 | strncpy(pSMB->FileName, searchName, name_len); | |
ac67055e | 3655 | pSMB->FileName[name_len] = dirsep; |
68575476 SF |
3656 | pSMB->FileName[name_len+1] = '*'; |
3657 | pSMB->FileName[name_len+2] = 0; | |
3658 | name_len += 3; | |
1da177e4 LT |
3659 | } |
3660 | ||
3661 | params = 12 + name_len /* includes null */ ; | |
3662 | pSMB->TotalDataCount = 0; /* no EAs */ | |
3663 | pSMB->MaxParameterCount = cpu_to_le16(10); | |
3664 | pSMB->MaxDataCount = cpu_to_le16((tcon->ses->server->maxBuf - | |
3665 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
3666 | pSMB->MaxSetupCount = 0; | |
3667 | pSMB->Reserved = 0; | |
3668 | pSMB->Flags = 0; | |
3669 | pSMB->Timeout = 0; | |
3670 | pSMB->Reserved2 = 0; | |
3671 | byte_count = params + 1 /* pad */ ; | |
3672 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3673 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3674 | pSMB->ParameterOffset = cpu_to_le16( | |
88274815 SF |
3675 | offsetof(struct smb_com_transaction2_ffirst_req, SearchAttributes) |
3676 | - 4); | |
1da177e4 LT |
3677 | pSMB->DataCount = 0; |
3678 | pSMB->DataOffset = 0; | |
3679 | pSMB->SetupCount = 1; /* one byte, no need to make endian neutral */ | |
3680 | pSMB->Reserved3 = 0; | |
3681 | pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_FIRST); | |
3682 | pSMB->SearchAttributes = | |
3683 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | | |
3684 | ATTR_DIRECTORY); | |
50c2f753 SF |
3685 | pSMB->SearchCount = cpu_to_le16(CIFSMaxBufSize/sizeof(FILE_UNIX_INFO)); |
3686 | pSMB->SearchFlags = cpu_to_le16(CIFS_SEARCH_CLOSE_AT_END | | |
1da177e4 LT |
3687 | CIFS_SEARCH_RETURN_RESUME); |
3688 | pSMB->InformationLevel = cpu_to_le16(psrch_inf->info_level); | |
3689 | ||
3690 | /* BB what should we set StorageType to? Does it matter? BB */ | |
3691 | pSMB->SearchStorageType = 0; | |
3692 | pSMB->hdr.smb_buf_length += byte_count; | |
3693 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3694 | ||
3695 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3696 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 3697 | cifs_stats_inc(&tcon->num_ffirst); |
1da177e4 | 3698 | |
88274815 SF |
3699 | if (rc) {/* BB add logic to retry regular search if Unix search |
3700 | rejected unexpectedly by server */ | |
1da177e4 | 3701 | /* BB Add code to handle unsupported level rc */ |
b6b38f70 | 3702 | cFYI(1, "Error in FindFirst = %d", rc); |
1982c344 | 3703 | |
88274815 | 3704 | cifs_buf_release(pSMB); |
1da177e4 LT |
3705 | |
3706 | /* BB eventually could optimize out free and realloc of buf */ | |
3707 | /* for this case */ | |
3708 | if (rc == -EAGAIN) | |
3709 | goto findFirstRetry; | |
3710 | } else { /* decode response */ | |
3711 | /* BB remember to free buffer if error BB */ | |
3712 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
790fe579 | 3713 | if (rc == 0) { |
b77d753c SF |
3714 | unsigned int lnoff; |
3715 | ||
1da177e4 | 3716 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) |
4b18f2a9 | 3717 | psrch_inf->unicode = true; |
1da177e4 | 3718 | else |
4b18f2a9 | 3719 | psrch_inf->unicode = false; |
1da177e4 LT |
3720 | |
3721 | psrch_inf->ntwrk_buf_start = (char *)pSMBr; | |
d47d7c1a | 3722 | psrch_inf->smallBuf = 0; |
50c2f753 SF |
3723 | psrch_inf->srch_entries_start = |
3724 | (char *) &pSMBr->hdr.Protocol + | |
1da177e4 | 3725 | le16_to_cpu(pSMBr->t2.DataOffset); |
1da177e4 LT |
3726 | parms = (T2_FFIRST_RSP_PARMS *)((char *) &pSMBr->hdr.Protocol + |
3727 | le16_to_cpu(pSMBr->t2.ParameterOffset)); | |
3728 | ||
790fe579 | 3729 | if (parms->EndofSearch) |
4b18f2a9 | 3730 | psrch_inf->endOfSearch = true; |
1da177e4 | 3731 | else |
4b18f2a9 | 3732 | psrch_inf->endOfSearch = false; |
1da177e4 | 3733 | |
50c2f753 SF |
3734 | psrch_inf->entries_in_buffer = |
3735 | le16_to_cpu(parms->SearchCount); | |
60808233 | 3736 | psrch_inf->index_of_last_entry = 2 /* skip . and .. */ + |
1da177e4 | 3737 | psrch_inf->entries_in_buffer; |
b77d753c SF |
3738 | lnoff = le16_to_cpu(parms->LastNameOffset); |
3739 | if (tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE < | |
3740 | lnoff) { | |
b6b38f70 | 3741 | cERROR(1, "ignoring corrupt resume name"); |
b77d753c SF |
3742 | psrch_inf->last_entry = NULL; |
3743 | return rc; | |
3744 | } | |
3745 | ||
0752f152 | 3746 | psrch_inf->last_entry = psrch_inf->srch_entries_start + |
b77d753c SF |
3747 | lnoff; |
3748 | ||
1da177e4 LT |
3749 | *pnetfid = parms->SearchHandle; |
3750 | } else { | |
3751 | cifs_buf_release(pSMB); | |
3752 | } | |
3753 | } | |
3754 | ||
3755 | return rc; | |
3756 | } | |
3757 | ||
3758 | int CIFSFindNext(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 | 3759 | __u16 searchHandle, struct cifs_search_info *psrch_inf) |
1da177e4 LT |
3760 | { |
3761 | TRANSACTION2_FNEXT_REQ *pSMB = NULL; | |
3762 | TRANSACTION2_FNEXT_RSP *pSMBr = NULL; | |
ad7a2926 | 3763 | T2_FNEXT_RSP_PARMS *parms; |
1da177e4 LT |
3764 | char *response_data; |
3765 | int rc = 0; | |
3766 | int bytes_returned, name_len; | |
3767 | __u16 params, byte_count; | |
3768 | ||
b6b38f70 | 3769 | cFYI(1, "In FindNext"); |
1da177e4 | 3770 | |
4b18f2a9 | 3771 | if (psrch_inf->endOfSearch) |
1da177e4 LT |
3772 | return -ENOENT; |
3773 | ||
3774 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3775 | (void **) &pSMBr); | |
3776 | if (rc) | |
3777 | return rc; | |
3778 | ||
50c2f753 | 3779 | params = 14; /* includes 2 bytes of null string, converted to LE below*/ |
1da177e4 LT |
3780 | byte_count = 0; |
3781 | pSMB->TotalDataCount = 0; /* no EAs */ | |
3782 | pSMB->MaxParameterCount = cpu_to_le16(8); | |
3783 | pSMB->MaxDataCount = | |
50c2f753 SF |
3784 | cpu_to_le16((tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) & |
3785 | 0xFFFFFF00); | |
1da177e4 LT |
3786 | pSMB->MaxSetupCount = 0; |
3787 | pSMB->Reserved = 0; | |
3788 | pSMB->Flags = 0; | |
3789 | pSMB->Timeout = 0; | |
3790 | pSMB->Reserved2 = 0; | |
3791 | pSMB->ParameterOffset = cpu_to_le16( | |
3792 | offsetof(struct smb_com_transaction2_fnext_req,SearchHandle) - 4); | |
3793 | pSMB->DataCount = 0; | |
3794 | pSMB->DataOffset = 0; | |
3795 | pSMB->SetupCount = 1; | |
3796 | pSMB->Reserved3 = 0; | |
3797 | pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_NEXT); | |
3798 | pSMB->SearchHandle = searchHandle; /* always kept as le */ | |
3799 | pSMB->SearchCount = | |
630f3f0c | 3800 | cpu_to_le16(CIFSMaxBufSize / sizeof(FILE_UNIX_INFO)); |
1da177e4 LT |
3801 | pSMB->InformationLevel = cpu_to_le16(psrch_inf->info_level); |
3802 | pSMB->ResumeKey = psrch_inf->resume_key; | |
3803 | pSMB->SearchFlags = | |
3804 | cpu_to_le16(CIFS_SEARCH_CLOSE_AT_END | CIFS_SEARCH_RETURN_RESUME); | |
3805 | ||
3806 | name_len = psrch_inf->resume_name_len; | |
3807 | params += name_len; | |
790fe579 | 3808 | if (name_len < PATH_MAX) { |
1da177e4 LT |
3809 | memcpy(pSMB->ResumeFileName, psrch_inf->presume_name, name_len); |
3810 | byte_count += name_len; | |
ef6724e3 SF |
3811 | /* 14 byte parm len above enough for 2 byte null terminator */ |
3812 | pSMB->ResumeFileName[name_len] = 0; | |
3813 | pSMB->ResumeFileName[name_len+1] = 0; | |
1da177e4 LT |
3814 | } else { |
3815 | rc = -EINVAL; | |
3816 | goto FNext2_err_exit; | |
3817 | } | |
3818 | byte_count = params + 1 /* pad */ ; | |
3819 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3820 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3821 | pSMB->hdr.smb_buf_length += byte_count; | |
3822 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
50c2f753 | 3823 | |
1da177e4 LT |
3824 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
3825 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 3826 | cifs_stats_inc(&tcon->num_fnext); |
1da177e4 LT |
3827 | if (rc) { |
3828 | if (rc == -EBADF) { | |
4b18f2a9 | 3829 | psrch_inf->endOfSearch = true; |
6353450a | 3830 | cifs_buf_release(pSMB); |
50c2f753 | 3831 | rc = 0; /* search probably was closed at end of search*/ |
1da177e4 | 3832 | } else |
b6b38f70 | 3833 | cFYI(1, "FindNext returned = %d", rc); |
1da177e4 LT |
3834 | } else { /* decode response */ |
3835 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
50c2f753 | 3836 | |
790fe579 | 3837 | if (rc == 0) { |
b77d753c SF |
3838 | unsigned int lnoff; |
3839 | ||
1da177e4 LT |
3840 | /* BB fixme add lock for file (srch_info) struct here */ |
3841 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) | |
4b18f2a9 | 3842 | psrch_inf->unicode = true; |
1da177e4 | 3843 | else |
4b18f2a9 | 3844 | psrch_inf->unicode = false; |
1da177e4 LT |
3845 | response_data = (char *) &pSMBr->hdr.Protocol + |
3846 | le16_to_cpu(pSMBr->t2.ParameterOffset); | |
3847 | parms = (T2_FNEXT_RSP_PARMS *)response_data; | |
3848 | response_data = (char *)&pSMBr->hdr.Protocol + | |
3849 | le16_to_cpu(pSMBr->t2.DataOffset); | |
790fe579 | 3850 | if (psrch_inf->smallBuf) |
d47d7c1a SF |
3851 | cifs_small_buf_release( |
3852 | psrch_inf->ntwrk_buf_start); | |
3853 | else | |
3854 | cifs_buf_release(psrch_inf->ntwrk_buf_start); | |
1da177e4 LT |
3855 | psrch_inf->srch_entries_start = response_data; |
3856 | psrch_inf->ntwrk_buf_start = (char *)pSMB; | |
d47d7c1a | 3857 | psrch_inf->smallBuf = 0; |
790fe579 | 3858 | if (parms->EndofSearch) |
4b18f2a9 | 3859 | psrch_inf->endOfSearch = true; |
1da177e4 | 3860 | else |
4b18f2a9 | 3861 | psrch_inf->endOfSearch = false; |
50c2f753 SF |
3862 | psrch_inf->entries_in_buffer = |
3863 | le16_to_cpu(parms->SearchCount); | |
1da177e4 LT |
3864 | psrch_inf->index_of_last_entry += |
3865 | psrch_inf->entries_in_buffer; | |
b77d753c SF |
3866 | lnoff = le16_to_cpu(parms->LastNameOffset); |
3867 | if (tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE < | |
3868 | lnoff) { | |
b6b38f70 | 3869 | cERROR(1, "ignoring corrupt resume name"); |
b77d753c SF |
3870 | psrch_inf->last_entry = NULL; |
3871 | return rc; | |
3872 | } else | |
3873 | psrch_inf->last_entry = | |
3874 | psrch_inf->srch_entries_start + lnoff; | |
3875 | ||
b6b38f70 JP |
3876 | /* cFYI(1, "fnxt2 entries in buf %d index_of_last %d", |
3877 | psrch_inf->entries_in_buffer, psrch_inf->index_of_last_entry); */ | |
1da177e4 LT |
3878 | |
3879 | /* BB fixme add unlock here */ | |
3880 | } | |
3881 | ||
3882 | } | |
3883 | ||
3884 | /* BB On error, should we leave previous search buf (and count and | |
3885 | last entry fields) intact or free the previous one? */ | |
3886 | ||
3887 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
3888 | since file handle passed in no longer valid */ | |
3889 | FNext2_err_exit: | |
3890 | if (rc != 0) | |
3891 | cifs_buf_release(pSMB); | |
1da177e4 LT |
3892 | return rc; |
3893 | } | |
3894 | ||
3895 | int | |
50c2f753 SF |
3896 | CIFSFindClose(const int xid, struct cifsTconInfo *tcon, |
3897 | const __u16 searchHandle) | |
1da177e4 LT |
3898 | { |
3899 | int rc = 0; | |
3900 | FINDCLOSE_REQ *pSMB = NULL; | |
1da177e4 | 3901 | |
b6b38f70 | 3902 | cFYI(1, "In CIFSSMBFindClose"); |
1da177e4 LT |
3903 | rc = small_smb_init(SMB_COM_FIND_CLOSE2, 1, tcon, (void **)&pSMB); |
3904 | ||
3905 | /* no sense returning error if session restarted | |
3906 | as file handle has been closed */ | |
790fe579 | 3907 | if (rc == -EAGAIN) |
1da177e4 LT |
3908 | return 0; |
3909 | if (rc) | |
3910 | return rc; | |
3911 | ||
1da177e4 LT |
3912 | pSMB->FileID = searchHandle; |
3913 | pSMB->ByteCount = 0; | |
133672ef | 3914 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); |
ad7a2926 | 3915 | if (rc) |
b6b38f70 | 3916 | cERROR(1, "Send error in FindClose = %d", rc); |
ad7a2926 | 3917 | |
a4544347 | 3918 | cifs_stats_inc(&tcon->num_fclose); |
1da177e4 LT |
3919 | |
3920 | /* Since session is dead, search handle closed on server already */ | |
3921 | if (rc == -EAGAIN) | |
3922 | rc = 0; | |
3923 | ||
3924 | return rc; | |
3925 | } | |
3926 | ||
1da177e4 LT |
3927 | int |
3928 | CIFSGetSrvInodeNumber(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 | 3929 | const unsigned char *searchName, |
ad7a2926 | 3930 | __u64 *inode_number, |
50c2f753 | 3931 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
3932 | { |
3933 | int rc = 0; | |
3934 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
3935 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
3936 | int name_len, bytes_returned; | |
3937 | __u16 params, byte_count; | |
3938 | ||
b6b38f70 | 3939 | cFYI(1, "In GetSrvInodeNum for %s", searchName); |
790fe579 | 3940 | if (tcon == NULL) |
50c2f753 | 3941 | return -ENODEV; |
1da177e4 LT |
3942 | |
3943 | GetInodeNumberRetry: | |
3944 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
50c2f753 | 3945 | (void **) &pSMBr); |
1da177e4 LT |
3946 | if (rc) |
3947 | return rc; | |
3948 | ||
1da177e4 LT |
3949 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
3950 | name_len = | |
b1a45695 | 3951 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
50c2f753 | 3952 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
3953 | name_len++; /* trailing null */ |
3954 | name_len *= 2; | |
50c2f753 | 3955 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
3956 | name_len = strnlen(searchName, PATH_MAX); |
3957 | name_len++; /* trailing null */ | |
3958 | strncpy(pSMB->FileName, searchName, name_len); | |
3959 | } | |
3960 | ||
3961 | params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ; | |
3962 | pSMB->TotalDataCount = 0; | |
3963 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3964 | /* BB find exact max data count below from sess structure BB */ | |
3965 | pSMB->MaxDataCount = cpu_to_le16(4000); | |
3966 | pSMB->MaxSetupCount = 0; | |
3967 | pSMB->Reserved = 0; | |
3968 | pSMB->Flags = 0; | |
3969 | pSMB->Timeout = 0; | |
3970 | pSMB->Reserved2 = 0; | |
3971 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 3972 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
1da177e4 LT |
3973 | pSMB->DataCount = 0; |
3974 | pSMB->DataOffset = 0; | |
3975 | pSMB->SetupCount = 1; | |
3976 | pSMB->Reserved3 = 0; | |
3977 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
3978 | byte_count = params + 1 /* pad */ ; | |
3979 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3980 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3981 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_INTERNAL_INFO); | |
3982 | pSMB->Reserved4 = 0; | |
3983 | pSMB->hdr.smb_buf_length += byte_count; | |
3984 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3985 | ||
3986 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3987 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3988 | if (rc) { | |
b6b38f70 | 3989 | cFYI(1, "error %d in QueryInternalInfo", rc); |
1da177e4 LT |
3990 | } else { |
3991 | /* decode response */ | |
3992 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3993 | if (rc || (pSMBr->ByteCount < 2)) | |
3994 | /* BB also check enough total bytes returned */ | |
3995 | /* If rc should we check for EOPNOSUPP and | |
3996 | disable the srvino flag? or in caller? */ | |
3997 | rc = -EIO; /* bad smb */ | |
50c2f753 | 3998 | else { |
1da177e4 LT |
3999 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
4000 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); | |
50c2f753 | 4001 | struct file_internal_info *pfinfo; |
1da177e4 | 4002 | /* BB Do we need a cast or hash here ? */ |
790fe579 | 4003 | if (count < 8) { |
b6b38f70 | 4004 | cFYI(1, "Illegal size ret in QryIntrnlInf"); |
1da177e4 LT |
4005 | rc = -EIO; |
4006 | goto GetInodeNumOut; | |
4007 | } | |
4008 | pfinfo = (struct file_internal_info *) | |
4009 | (data_offset + (char *) &pSMBr->hdr.Protocol); | |
85a6dac5 | 4010 | *inode_number = le64_to_cpu(pfinfo->UniqueId); |
1da177e4 LT |
4011 | } |
4012 | } | |
4013 | GetInodeNumOut: | |
4014 | cifs_buf_release(pSMB); | |
4015 | if (rc == -EAGAIN) | |
4016 | goto GetInodeNumberRetry; | |
4017 | return rc; | |
4018 | } | |
1da177e4 | 4019 | |
fec4585f IM |
4020 | /* parses DFS refferal V3 structure |
4021 | * caller is responsible for freeing target_nodes | |
4022 | * returns: | |
4023 | * on success - 0 | |
4024 | * on failure - errno | |
4025 | */ | |
4026 | static int | |
a1fe78f1 | 4027 | parse_DFS_referrals(TRANSACTION2_GET_DFS_REFER_RSP *pSMBr, |
fec4585f IM |
4028 | unsigned int *num_of_nodes, |
4029 | struct dfs_info3_param **target_nodes, | |
2c55608f IM |
4030 | const struct nls_table *nls_codepage, int remap, |
4031 | const char *searchName) | |
fec4585f IM |
4032 | { |
4033 | int i, rc = 0; | |
4034 | char *data_end; | |
4035 | bool is_unicode; | |
4036 | struct dfs_referral_level_3 *ref; | |
4037 | ||
5ca33c6a HH |
4038 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) |
4039 | is_unicode = true; | |
4040 | else | |
4041 | is_unicode = false; | |
fec4585f IM |
4042 | *num_of_nodes = le16_to_cpu(pSMBr->NumberOfReferrals); |
4043 | ||
4044 | if (*num_of_nodes < 1) { | |
b6b38f70 JP |
4045 | cERROR(1, "num_referrals: must be at least > 0," |
4046 | "but we get num_referrals = %d\n", *num_of_nodes); | |
fec4585f | 4047 | rc = -EINVAL; |
a1fe78f1 | 4048 | goto parse_DFS_referrals_exit; |
fec4585f IM |
4049 | } |
4050 | ||
4051 | ref = (struct dfs_referral_level_3 *) &(pSMBr->referrals); | |
1d92cfd5 | 4052 | if (ref->VersionNumber != cpu_to_le16(3)) { |
b6b38f70 JP |
4053 | cERROR(1, "Referrals of V%d version are not supported," |
4054 | "should be V3", le16_to_cpu(ref->VersionNumber)); | |
fec4585f | 4055 | rc = -EINVAL; |
a1fe78f1 | 4056 | goto parse_DFS_referrals_exit; |
fec4585f IM |
4057 | } |
4058 | ||
4059 | /* get the upper boundary of the resp buffer */ | |
4060 | data_end = (char *)(&(pSMBr->PathConsumed)) + | |
4061 | le16_to_cpu(pSMBr->t2.DataCount); | |
4062 | ||
f19159dc | 4063 | cFYI(1, "num_referrals: %d dfs flags: 0x%x ...\n", |
fec4585f | 4064 | *num_of_nodes, |
b6b38f70 | 4065 | le32_to_cpu(pSMBr->DFSFlags)); |
fec4585f IM |
4066 | |
4067 | *target_nodes = kzalloc(sizeof(struct dfs_info3_param) * | |
4068 | *num_of_nodes, GFP_KERNEL); | |
4069 | if (*target_nodes == NULL) { | |
b6b38f70 | 4070 | cERROR(1, "Failed to allocate buffer for target_nodes\n"); |
fec4585f | 4071 | rc = -ENOMEM; |
a1fe78f1 | 4072 | goto parse_DFS_referrals_exit; |
fec4585f IM |
4073 | } |
4074 | ||
3ad2f3fb | 4075 | /* collect necessary data from referrals */ |
fec4585f IM |
4076 | for (i = 0; i < *num_of_nodes; i++) { |
4077 | char *temp; | |
4078 | int max_len; | |
4079 | struct dfs_info3_param *node = (*target_nodes)+i; | |
4080 | ||
0e0d2cf3 | 4081 | node->flags = le32_to_cpu(pSMBr->DFSFlags); |
2c55608f | 4082 | if (is_unicode) { |
331c3135 JL |
4083 | __le16 *tmp = kmalloc(strlen(searchName)*2 + 2, |
4084 | GFP_KERNEL); | |
2920ee2b SF |
4085 | if (tmp == NULL) { |
4086 | rc = -ENOMEM; | |
4087 | goto parse_DFS_referrals_exit; | |
4088 | } | |
2c55608f IM |
4089 | cifsConvertToUCS((__le16 *) tmp, searchName, |
4090 | PATH_MAX, nls_codepage, remap); | |
69f801fc JL |
4091 | node->path_consumed = cifs_ucs2_bytes(tmp, |
4092 | le16_to_cpu(pSMBr->PathConsumed), | |
2c55608f IM |
4093 | nls_codepage); |
4094 | kfree(tmp); | |
4095 | } else | |
4096 | node->path_consumed = le16_to_cpu(pSMBr->PathConsumed); | |
4097 | ||
fec4585f IM |
4098 | node->server_type = le16_to_cpu(ref->ServerType); |
4099 | node->ref_flag = le16_to_cpu(ref->ReferralEntryFlags); | |
4100 | ||
4101 | /* copy DfsPath */ | |
4102 | temp = (char *)ref + le16_to_cpu(ref->DfsPathOffset); | |
4103 | max_len = data_end - temp; | |
d185cda7 SF |
4104 | node->path_name = cifs_strndup_from_ucs(temp, max_len, |
4105 | is_unicode, nls_codepage); | |
d8e2f53a JL |
4106 | if (!node->path_name) { |
4107 | rc = -ENOMEM; | |
a1fe78f1 | 4108 | goto parse_DFS_referrals_exit; |
066ce689 | 4109 | } |
fec4585f IM |
4110 | |
4111 | /* copy link target UNC */ | |
4112 | temp = (char *)ref + le16_to_cpu(ref->NetworkAddressOffset); | |
4113 | max_len = data_end - temp; | |
d185cda7 SF |
4114 | node->node_name = cifs_strndup_from_ucs(temp, max_len, |
4115 | is_unicode, nls_codepage); | |
d8e2f53a JL |
4116 | if (!node->node_name) |
4117 | rc = -ENOMEM; | |
fec4585f IM |
4118 | } |
4119 | ||
a1fe78f1 | 4120 | parse_DFS_referrals_exit: |
fec4585f IM |
4121 | if (rc) { |
4122 | free_dfs_info_array(*target_nodes, *num_of_nodes); | |
4123 | *target_nodes = NULL; | |
4124 | *num_of_nodes = 0; | |
4125 | } | |
4126 | return rc; | |
4127 | } | |
4128 | ||
1da177e4 LT |
4129 | int |
4130 | CIFSGetDFSRefer(const int xid, struct cifsSesInfo *ses, | |
4131 | const unsigned char *searchName, | |
c2cf07d5 SF |
4132 | struct dfs_info3_param **target_nodes, |
4133 | unsigned int *num_of_nodes, | |
737b758c | 4134 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
4135 | { |
4136 | /* TRANS2_GET_DFS_REFERRAL */ | |
4137 | TRANSACTION2_GET_DFS_REFER_REQ *pSMB = NULL; | |
4138 | TRANSACTION2_GET_DFS_REFER_RSP *pSMBr = NULL; | |
1da177e4 LT |
4139 | int rc = 0; |
4140 | int bytes_returned; | |
4141 | int name_len; | |
1da177e4 | 4142 | __u16 params, byte_count; |
c2cf07d5 SF |
4143 | *num_of_nodes = 0; |
4144 | *target_nodes = NULL; | |
1da177e4 | 4145 | |
b6b38f70 | 4146 | cFYI(1, "In GetDFSRefer the path %s", searchName); |
1da177e4 LT |
4147 | if (ses == NULL) |
4148 | return -ENODEV; | |
4149 | getDFSRetry: | |
4150 | rc = smb_init(SMB_COM_TRANSACTION2, 15, NULL, (void **) &pSMB, | |
4151 | (void **) &pSMBr); | |
4152 | if (rc) | |
4153 | return rc; | |
50c2f753 SF |
4154 | |
4155 | /* server pointer checked in called function, | |
1982c344 SF |
4156 | but should never be null here anyway */ |
4157 | pSMB->hdr.Mid = GetNextMid(ses->server); | |
1da177e4 LT |
4158 | pSMB->hdr.Tid = ses->ipc_tid; |
4159 | pSMB->hdr.Uid = ses->Suid; | |
26f57364 | 4160 | if (ses->capabilities & CAP_STATUS32) |
1da177e4 | 4161 | pSMB->hdr.Flags2 |= SMBFLG2_ERR_STATUS; |
26f57364 | 4162 | if (ses->capabilities & CAP_DFS) |
1da177e4 | 4163 | pSMB->hdr.Flags2 |= SMBFLG2_DFS; |
1da177e4 LT |
4164 | |
4165 | if (ses->capabilities & CAP_UNICODE) { | |
4166 | pSMB->hdr.Flags2 |= SMBFLG2_UNICODE; | |
4167 | name_len = | |
b1a45695 | 4168 | cifsConvertToUCS((__le16 *) pSMB->RequestFileName, |
737b758c | 4169 | searchName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
4170 | name_len++; /* trailing null */ |
4171 | name_len *= 2; | |
50c2f753 | 4172 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
4173 | name_len = strnlen(searchName, PATH_MAX); |
4174 | name_len++; /* trailing null */ | |
4175 | strncpy(pSMB->RequestFileName, searchName, name_len); | |
4176 | } | |
4177 | ||
790fe579 SF |
4178 | if (ses->server) { |
4179 | if (ses->server->secMode & | |
1a4e15a0 SF |
4180 | (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) |
4181 | pSMB->hdr.Flags2 |= SMBFLG2_SECURITY_SIGNATURE; | |
4182 | } | |
4183 | ||
50c2f753 | 4184 | pSMB->hdr.Uid = ses->Suid; |
1a4e15a0 | 4185 | |
1da177e4 LT |
4186 | params = 2 /* level */ + name_len /*includes null */ ; |
4187 | pSMB->TotalDataCount = 0; | |
4188 | pSMB->DataCount = 0; | |
4189 | pSMB->DataOffset = 0; | |
4190 | pSMB->MaxParameterCount = 0; | |
582d21e5 SF |
4191 | /* BB find exact max SMB PDU from sess structure BB */ |
4192 | pSMB->MaxDataCount = cpu_to_le16(4000); | |
1da177e4 LT |
4193 | pSMB->MaxSetupCount = 0; |
4194 | pSMB->Reserved = 0; | |
4195 | pSMB->Flags = 0; | |
4196 | pSMB->Timeout = 0; | |
4197 | pSMB->Reserved2 = 0; | |
4198 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 4199 | struct smb_com_transaction2_get_dfs_refer_req, MaxReferralLevel) - 4); |
1da177e4 LT |
4200 | pSMB->SetupCount = 1; |
4201 | pSMB->Reserved3 = 0; | |
4202 | pSMB->SubCommand = cpu_to_le16(TRANS2_GET_DFS_REFERRAL); | |
4203 | byte_count = params + 3 /* pad */ ; | |
4204 | pSMB->ParameterCount = cpu_to_le16(params); | |
4205 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4206 | pSMB->MaxReferralLevel = cpu_to_le16(3); | |
4207 | pSMB->hdr.smb_buf_length += byte_count; | |
4208 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4209 | ||
4210 | rc = SendReceive(xid, ses, (struct smb_hdr *) pSMB, | |
4211 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4212 | if (rc) { | |
b6b38f70 | 4213 | cFYI(1, "Send error in GetDFSRefer = %d", rc); |
c2cf07d5 SF |
4214 | goto GetDFSRefExit; |
4215 | } | |
4216 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
1da177e4 | 4217 | |
c2cf07d5 | 4218 | /* BB Also check if enough total bytes returned? */ |
fec4585f | 4219 | if (rc || (pSMBr->ByteCount < 17)) { |
c2cf07d5 | 4220 | rc = -EIO; /* bad smb */ |
fec4585f IM |
4221 | goto GetDFSRefExit; |
4222 | } | |
c2cf07d5 | 4223 | |
b6b38f70 | 4224 | cFYI(1, "Decoding GetDFSRefer response BCC: %d Offset %d", |
fec4585f | 4225 | pSMBr->ByteCount, |
b6b38f70 | 4226 | le16_to_cpu(pSMBr->t2.DataOffset)); |
1da177e4 | 4227 | |
fec4585f | 4228 | /* parse returned result into more usable form */ |
a1fe78f1 | 4229 | rc = parse_DFS_referrals(pSMBr, num_of_nodes, |
2c55608f IM |
4230 | target_nodes, nls_codepage, remap, |
4231 | searchName); | |
c2cf07d5 | 4232 | |
1da177e4 | 4233 | GetDFSRefExit: |
0d817bc0 | 4234 | cifs_buf_release(pSMB); |
1da177e4 LT |
4235 | |
4236 | if (rc == -EAGAIN) | |
4237 | goto getDFSRetry; | |
4238 | ||
4239 | return rc; | |
4240 | } | |
4241 | ||
20962438 SF |
4242 | /* Query File System Info such as free space to old servers such as Win 9x */ |
4243 | int | |
4244 | SMBOldQFSInfo(const int xid, struct cifsTconInfo *tcon, struct kstatfs *FSData) | |
4245 | { | |
4246 | /* level 0x01 SMB_QUERY_FILE_SYSTEM_INFO */ | |
4247 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4248 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4249 | FILE_SYSTEM_ALLOC_INFO *response_data; | |
4250 | int rc = 0; | |
4251 | int bytes_returned = 0; | |
4252 | __u16 params, byte_count; | |
4253 | ||
b6b38f70 | 4254 | cFYI(1, "OldQFSInfo"); |
20962438 SF |
4255 | oldQFSInfoRetry: |
4256 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4257 | (void **) &pSMBr); | |
4258 | if (rc) | |
4259 | return rc; | |
20962438 SF |
4260 | |
4261 | params = 2; /* level */ | |
4262 | pSMB->TotalDataCount = 0; | |
4263 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4264 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
4265 | pSMB->MaxSetupCount = 0; | |
4266 | pSMB->Reserved = 0; | |
4267 | pSMB->Flags = 0; | |
4268 | pSMB->Timeout = 0; | |
4269 | pSMB->Reserved2 = 0; | |
4270 | byte_count = params + 1 /* pad */ ; | |
4271 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
4272 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
4273 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
4274 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
4275 | pSMB->DataCount = 0; | |
4276 | pSMB->DataOffset = 0; | |
4277 | pSMB->SetupCount = 1; | |
4278 | pSMB->Reserved3 = 0; | |
4279 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4280 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_ALLOCATION); | |
4281 | pSMB->hdr.smb_buf_length += byte_count; | |
4282 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4283 | ||
4284 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4285 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4286 | if (rc) { | |
b6b38f70 | 4287 | cFYI(1, "Send error in QFSInfo = %d", rc); |
20962438 SF |
4288 | } else { /* decode response */ |
4289 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4290 | ||
4291 | if (rc || (pSMBr->ByteCount < 18)) | |
4292 | rc = -EIO; /* bad smb */ | |
4293 | else { | |
4294 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
b6b38f70 JP |
4295 | cFYI(1, "qfsinf resp BCC: %d Offset %d", |
4296 | pSMBr->ByteCount, data_offset); | |
20962438 | 4297 | |
50c2f753 | 4298 | response_data = (FILE_SYSTEM_ALLOC_INFO *) |
20962438 SF |
4299 | (((char *) &pSMBr->hdr.Protocol) + data_offset); |
4300 | FSData->f_bsize = | |
4301 | le16_to_cpu(response_data->BytesPerSector) * | |
4302 | le32_to_cpu(response_data-> | |
4303 | SectorsPerAllocationUnit); | |
4304 | FSData->f_blocks = | |
50c2f753 | 4305 | le32_to_cpu(response_data->TotalAllocationUnits); |
20962438 SF |
4306 | FSData->f_bfree = FSData->f_bavail = |
4307 | le32_to_cpu(response_data->FreeAllocationUnits); | |
b6b38f70 JP |
4308 | cFYI(1, "Blocks: %lld Free: %lld Block size %ld", |
4309 | (unsigned long long)FSData->f_blocks, | |
4310 | (unsigned long long)FSData->f_bfree, | |
4311 | FSData->f_bsize); | |
20962438 SF |
4312 | } |
4313 | } | |
4314 | cifs_buf_release(pSMB); | |
4315 | ||
4316 | if (rc == -EAGAIN) | |
4317 | goto oldQFSInfoRetry; | |
4318 | ||
4319 | return rc; | |
4320 | } | |
4321 | ||
1da177e4 | 4322 | int |
737b758c | 4323 | CIFSSMBQFSInfo(const int xid, struct cifsTconInfo *tcon, struct kstatfs *FSData) |
1da177e4 LT |
4324 | { |
4325 | /* level 0x103 SMB_QUERY_FILE_SYSTEM_INFO */ | |
4326 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4327 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4328 | FILE_SYSTEM_INFO *response_data; | |
4329 | int rc = 0; | |
4330 | int bytes_returned = 0; | |
4331 | __u16 params, byte_count; | |
4332 | ||
b6b38f70 | 4333 | cFYI(1, "In QFSInfo"); |
1da177e4 LT |
4334 | QFSInfoRetry: |
4335 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4336 | (void **) &pSMBr); | |
4337 | if (rc) | |
4338 | return rc; | |
4339 | ||
4340 | params = 2; /* level */ | |
4341 | pSMB->TotalDataCount = 0; | |
4342 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
20962438 | 4343 | pSMB->MaxDataCount = cpu_to_le16(1000); |
1da177e4 LT |
4344 | pSMB->MaxSetupCount = 0; |
4345 | pSMB->Reserved = 0; | |
4346 | pSMB->Flags = 0; | |
4347 | pSMB->Timeout = 0; | |
4348 | pSMB->Reserved2 = 0; | |
4349 | byte_count = params + 1 /* pad */ ; | |
4350 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
4351 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
4352 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 4353 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); |
1da177e4 LT |
4354 | pSMB->DataCount = 0; |
4355 | pSMB->DataOffset = 0; | |
4356 | pSMB->SetupCount = 1; | |
4357 | pSMB->Reserved3 = 0; | |
4358 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4359 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_SIZE_INFO); | |
4360 | pSMB->hdr.smb_buf_length += byte_count; | |
4361 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4362 | ||
4363 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4364 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4365 | if (rc) { | |
b6b38f70 | 4366 | cFYI(1, "Send error in QFSInfo = %d", rc); |
1da177e4 | 4367 | } else { /* decode response */ |
50c2f753 | 4368 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
1da177e4 | 4369 | |
20962438 | 4370 | if (rc || (pSMBr->ByteCount < 24)) |
1da177e4 LT |
4371 | rc = -EIO; /* bad smb */ |
4372 | else { | |
4373 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
1da177e4 LT |
4374 | |
4375 | response_data = | |
4376 | (FILE_SYSTEM_INFO | |
4377 | *) (((char *) &pSMBr->hdr.Protocol) + | |
4378 | data_offset); | |
4379 | FSData->f_bsize = | |
4380 | le32_to_cpu(response_data->BytesPerSector) * | |
4381 | le32_to_cpu(response_data-> | |
4382 | SectorsPerAllocationUnit); | |
4383 | FSData->f_blocks = | |
4384 | le64_to_cpu(response_data->TotalAllocationUnits); | |
4385 | FSData->f_bfree = FSData->f_bavail = | |
4386 | le64_to_cpu(response_data->FreeAllocationUnits); | |
b6b38f70 JP |
4387 | cFYI(1, "Blocks: %lld Free: %lld Block size %ld", |
4388 | (unsigned long long)FSData->f_blocks, | |
4389 | (unsigned long long)FSData->f_bfree, | |
4390 | FSData->f_bsize); | |
1da177e4 LT |
4391 | } |
4392 | } | |
4393 | cifs_buf_release(pSMB); | |
4394 | ||
4395 | if (rc == -EAGAIN) | |
4396 | goto QFSInfoRetry; | |
4397 | ||
4398 | return rc; | |
4399 | } | |
4400 | ||
4401 | int | |
737b758c | 4402 | CIFSSMBQFSAttributeInfo(const int xid, struct cifsTconInfo *tcon) |
1da177e4 LT |
4403 | { |
4404 | /* level 0x105 SMB_QUERY_FILE_SYSTEM_INFO */ | |
4405 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4406 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4407 | FILE_SYSTEM_ATTRIBUTE_INFO *response_data; | |
4408 | int rc = 0; | |
4409 | int bytes_returned = 0; | |
4410 | __u16 params, byte_count; | |
4411 | ||
b6b38f70 | 4412 | cFYI(1, "In QFSAttributeInfo"); |
1da177e4 LT |
4413 | QFSAttributeRetry: |
4414 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4415 | (void **) &pSMBr); | |
4416 | if (rc) | |
4417 | return rc; | |
4418 | ||
4419 | params = 2; /* level */ | |
4420 | pSMB->TotalDataCount = 0; | |
4421 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
582d21e5 SF |
4422 | /* BB find exact max SMB PDU from sess structure BB */ |
4423 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1da177e4 LT |
4424 | pSMB->MaxSetupCount = 0; |
4425 | pSMB->Reserved = 0; | |
4426 | pSMB->Flags = 0; | |
4427 | pSMB->Timeout = 0; | |
4428 | pSMB->Reserved2 = 0; | |
4429 | byte_count = params + 1 /* pad */ ; | |
4430 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
4431 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
4432 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 4433 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); |
1da177e4 LT |
4434 | pSMB->DataCount = 0; |
4435 | pSMB->DataOffset = 0; | |
4436 | pSMB->SetupCount = 1; | |
4437 | pSMB->Reserved3 = 0; | |
4438 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4439 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_ATTRIBUTE_INFO); | |
4440 | pSMB->hdr.smb_buf_length += byte_count; | |
4441 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4442 | ||
4443 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4444 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4445 | if (rc) { | |
b6b38f70 | 4446 | cERROR(1, "Send error in QFSAttributeInfo = %d", rc); |
1da177e4 LT |
4447 | } else { /* decode response */ |
4448 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4449 | ||
50c2f753 SF |
4450 | if (rc || (pSMBr->ByteCount < 13)) { |
4451 | /* BB also check if enough bytes returned */ | |
1da177e4 LT |
4452 | rc = -EIO; /* bad smb */ |
4453 | } else { | |
4454 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
4455 | response_data = | |
4456 | (FILE_SYSTEM_ATTRIBUTE_INFO | |
4457 | *) (((char *) &pSMBr->hdr.Protocol) + | |
4458 | data_offset); | |
4459 | memcpy(&tcon->fsAttrInfo, response_data, | |
26f57364 | 4460 | sizeof(FILE_SYSTEM_ATTRIBUTE_INFO)); |
1da177e4 LT |
4461 | } |
4462 | } | |
4463 | cifs_buf_release(pSMB); | |
4464 | ||
4465 | if (rc == -EAGAIN) | |
4466 | goto QFSAttributeRetry; | |
4467 | ||
4468 | return rc; | |
4469 | } | |
4470 | ||
4471 | int | |
737b758c | 4472 | CIFSSMBQFSDeviceInfo(const int xid, struct cifsTconInfo *tcon) |
1da177e4 LT |
4473 | { |
4474 | /* level 0x104 SMB_QUERY_FILE_SYSTEM_INFO */ | |
4475 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4476 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4477 | FILE_SYSTEM_DEVICE_INFO *response_data; | |
4478 | int rc = 0; | |
4479 | int bytes_returned = 0; | |
4480 | __u16 params, byte_count; | |
4481 | ||
b6b38f70 | 4482 | cFYI(1, "In QFSDeviceInfo"); |
1da177e4 LT |
4483 | QFSDeviceRetry: |
4484 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4485 | (void **) &pSMBr); | |
4486 | if (rc) | |
4487 | return rc; | |
4488 | ||
4489 | params = 2; /* level */ | |
4490 | pSMB->TotalDataCount = 0; | |
4491 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
582d21e5 SF |
4492 | /* BB find exact max SMB PDU from sess structure BB */ |
4493 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1da177e4 LT |
4494 | pSMB->MaxSetupCount = 0; |
4495 | pSMB->Reserved = 0; | |
4496 | pSMB->Flags = 0; | |
4497 | pSMB->Timeout = 0; | |
4498 | pSMB->Reserved2 = 0; | |
4499 | byte_count = params + 1 /* pad */ ; | |
4500 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
4501 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
4502 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 4503 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); |
1da177e4 LT |
4504 | |
4505 | pSMB->DataCount = 0; | |
4506 | pSMB->DataOffset = 0; | |
4507 | pSMB->SetupCount = 1; | |
4508 | pSMB->Reserved3 = 0; | |
4509 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4510 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_DEVICE_INFO); | |
4511 | pSMB->hdr.smb_buf_length += byte_count; | |
4512 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4513 | ||
4514 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4515 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4516 | if (rc) { | |
b6b38f70 | 4517 | cFYI(1, "Send error in QFSDeviceInfo = %d", rc); |
1da177e4 LT |
4518 | } else { /* decode response */ |
4519 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4520 | ||
630f3f0c | 4521 | if (rc || (pSMBr->ByteCount < sizeof(FILE_SYSTEM_DEVICE_INFO))) |
1da177e4 LT |
4522 | rc = -EIO; /* bad smb */ |
4523 | else { | |
4524 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
4525 | response_data = | |
737b758c SF |
4526 | (FILE_SYSTEM_DEVICE_INFO *) |
4527 | (((char *) &pSMBr->hdr.Protocol) + | |
1da177e4 LT |
4528 | data_offset); |
4529 | memcpy(&tcon->fsDevInfo, response_data, | |
26f57364 | 4530 | sizeof(FILE_SYSTEM_DEVICE_INFO)); |
1da177e4 LT |
4531 | } |
4532 | } | |
4533 | cifs_buf_release(pSMB); | |
4534 | ||
4535 | if (rc == -EAGAIN) | |
4536 | goto QFSDeviceRetry; | |
4537 | ||
4538 | return rc; | |
4539 | } | |
4540 | ||
4541 | int | |
737b758c | 4542 | CIFSSMBQFSUnixInfo(const int xid, struct cifsTconInfo *tcon) |
1da177e4 LT |
4543 | { |
4544 | /* level 0x200 SMB_QUERY_CIFS_UNIX_INFO */ | |
4545 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4546 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4547 | FILE_SYSTEM_UNIX_INFO *response_data; | |
4548 | int rc = 0; | |
4549 | int bytes_returned = 0; | |
4550 | __u16 params, byte_count; | |
4551 | ||
b6b38f70 | 4552 | cFYI(1, "In QFSUnixInfo"); |
1da177e4 | 4553 | QFSUnixRetry: |
f569599a JL |
4554 | rc = smb_init_no_reconnect(SMB_COM_TRANSACTION2, 15, tcon, |
4555 | (void **) &pSMB, (void **) &pSMBr); | |
1da177e4 LT |
4556 | if (rc) |
4557 | return rc; | |
4558 | ||
4559 | params = 2; /* level */ | |
4560 | pSMB->TotalDataCount = 0; | |
4561 | pSMB->DataCount = 0; | |
4562 | pSMB->DataOffset = 0; | |
4563 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
582d21e5 SF |
4564 | /* BB find exact max SMB PDU from sess structure BB */ |
4565 | pSMB->MaxDataCount = cpu_to_le16(100); | |
1da177e4 LT |
4566 | pSMB->MaxSetupCount = 0; |
4567 | pSMB->Reserved = 0; | |
4568 | pSMB->Flags = 0; | |
4569 | pSMB->Timeout = 0; | |
4570 | pSMB->Reserved2 = 0; | |
4571 | byte_count = params + 1 /* pad */ ; | |
4572 | pSMB->ParameterCount = cpu_to_le16(params); | |
4573 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
50c2f753 SF |
4574 | pSMB->ParameterOffset = cpu_to_le16(offsetof(struct |
4575 | smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
1da177e4 LT |
4576 | pSMB->SetupCount = 1; |
4577 | pSMB->Reserved3 = 0; | |
4578 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4579 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_CIFS_UNIX_INFO); | |
4580 | pSMB->hdr.smb_buf_length += byte_count; | |
4581 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4582 | ||
4583 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4584 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4585 | if (rc) { | |
b6b38f70 | 4586 | cERROR(1, "Send error in QFSUnixInfo = %d", rc); |
1da177e4 LT |
4587 | } else { /* decode response */ |
4588 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4589 | ||
4590 | if (rc || (pSMBr->ByteCount < 13)) { | |
4591 | rc = -EIO; /* bad smb */ | |
4592 | } else { | |
4593 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
4594 | response_data = | |
4595 | (FILE_SYSTEM_UNIX_INFO | |
4596 | *) (((char *) &pSMBr->hdr.Protocol) + | |
4597 | data_offset); | |
4598 | memcpy(&tcon->fsUnixInfo, response_data, | |
26f57364 | 4599 | sizeof(FILE_SYSTEM_UNIX_INFO)); |
1da177e4 LT |
4600 | } |
4601 | } | |
4602 | cifs_buf_release(pSMB); | |
4603 | ||
4604 | if (rc == -EAGAIN) | |
4605 | goto QFSUnixRetry; | |
4606 | ||
4607 | ||
4608 | return rc; | |
4609 | } | |
4610 | ||
ac67055e | 4611 | int |
45abc6ee | 4612 | CIFSSMBSetFSUnixInfo(const int xid, struct cifsTconInfo *tcon, __u64 cap) |
ac67055e JA |
4613 | { |
4614 | /* level 0x200 SMB_SET_CIFS_UNIX_INFO */ | |
4615 | TRANSACTION2_SETFSI_REQ *pSMB = NULL; | |
4616 | TRANSACTION2_SETFSI_RSP *pSMBr = NULL; | |
4617 | int rc = 0; | |
4618 | int bytes_returned = 0; | |
4619 | __u16 params, param_offset, offset, byte_count; | |
4620 | ||
b6b38f70 | 4621 | cFYI(1, "In SETFSUnixInfo"); |
ac67055e | 4622 | SETFSUnixRetry: |
f26282c9 | 4623 | /* BB switch to small buf init to save memory */ |
f569599a JL |
4624 | rc = smb_init_no_reconnect(SMB_COM_TRANSACTION2, 15, tcon, |
4625 | (void **) &pSMB, (void **) &pSMBr); | |
ac67055e JA |
4626 | if (rc) |
4627 | return rc; | |
4628 | ||
4629 | params = 4; /* 2 bytes zero followed by info level. */ | |
4630 | pSMB->MaxSetupCount = 0; | |
4631 | pSMB->Reserved = 0; | |
4632 | pSMB->Flags = 0; | |
4633 | pSMB->Timeout = 0; | |
4634 | pSMB->Reserved2 = 0; | |
50c2f753 SF |
4635 | param_offset = offsetof(struct smb_com_transaction2_setfsi_req, FileNum) |
4636 | - 4; | |
ac67055e JA |
4637 | offset = param_offset + params; |
4638 | ||
4639 | pSMB->MaxParameterCount = cpu_to_le16(4); | |
582d21e5 SF |
4640 | /* BB find exact max SMB PDU from sess structure BB */ |
4641 | pSMB->MaxDataCount = cpu_to_le16(100); | |
ac67055e JA |
4642 | pSMB->SetupCount = 1; |
4643 | pSMB->Reserved3 = 0; | |
4644 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FS_INFORMATION); | |
4645 | byte_count = 1 /* pad */ + params + 12; | |
4646 | ||
4647 | pSMB->DataCount = cpu_to_le16(12); | |
4648 | pSMB->ParameterCount = cpu_to_le16(params); | |
4649 | pSMB->TotalDataCount = pSMB->DataCount; | |
4650 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4651 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4652 | pSMB->DataOffset = cpu_to_le16(offset); | |
4653 | ||
4654 | /* Params. */ | |
4655 | pSMB->FileNum = 0; | |
4656 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_CIFS_UNIX_INFO); | |
4657 | ||
4658 | /* Data. */ | |
4659 | pSMB->ClientUnixMajor = cpu_to_le16(CIFS_UNIX_MAJOR_VERSION); | |
4660 | pSMB->ClientUnixMinor = cpu_to_le16(CIFS_UNIX_MINOR_VERSION); | |
4661 | pSMB->ClientUnixCap = cpu_to_le64(cap); | |
4662 | ||
4663 | pSMB->hdr.smb_buf_length += byte_count; | |
4664 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4665 | ||
4666 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4667 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4668 | if (rc) { | |
b6b38f70 | 4669 | cERROR(1, "Send error in SETFSUnixInfo = %d", rc); |
ac67055e JA |
4670 | } else { /* decode response */ |
4671 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
ad7a2926 | 4672 | if (rc) |
ac67055e | 4673 | rc = -EIO; /* bad smb */ |
ac67055e JA |
4674 | } |
4675 | cifs_buf_release(pSMB); | |
4676 | ||
4677 | if (rc == -EAGAIN) | |
4678 | goto SETFSUnixRetry; | |
4679 | ||
4680 | return rc; | |
4681 | } | |
4682 | ||
4683 | ||
1da177e4 LT |
4684 | |
4685 | int | |
4686 | CIFSSMBQFSPosixInfo(const int xid, struct cifsTconInfo *tcon, | |
737b758c | 4687 | struct kstatfs *FSData) |
1da177e4 LT |
4688 | { |
4689 | /* level 0x201 SMB_QUERY_CIFS_POSIX_INFO */ | |
4690 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4691 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4692 | FILE_SYSTEM_POSIX_INFO *response_data; | |
4693 | int rc = 0; | |
4694 | int bytes_returned = 0; | |
4695 | __u16 params, byte_count; | |
4696 | ||
b6b38f70 | 4697 | cFYI(1, "In QFSPosixInfo"); |
1da177e4 LT |
4698 | QFSPosixRetry: |
4699 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4700 | (void **) &pSMBr); | |
4701 | if (rc) | |
4702 | return rc; | |
4703 | ||
4704 | params = 2; /* level */ | |
4705 | pSMB->TotalDataCount = 0; | |
4706 | pSMB->DataCount = 0; | |
4707 | pSMB->DataOffset = 0; | |
4708 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
582d21e5 SF |
4709 | /* BB find exact max SMB PDU from sess structure BB */ |
4710 | pSMB->MaxDataCount = cpu_to_le16(100); | |
1da177e4 LT |
4711 | pSMB->MaxSetupCount = 0; |
4712 | pSMB->Reserved = 0; | |
4713 | pSMB->Flags = 0; | |
4714 | pSMB->Timeout = 0; | |
4715 | pSMB->Reserved2 = 0; | |
4716 | byte_count = params + 1 /* pad */ ; | |
4717 | pSMB->ParameterCount = cpu_to_le16(params); | |
4718 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
50c2f753 SF |
4719 | pSMB->ParameterOffset = cpu_to_le16(offsetof(struct |
4720 | smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
1da177e4 LT |
4721 | pSMB->SetupCount = 1; |
4722 | pSMB->Reserved3 = 0; | |
4723 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4724 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_POSIX_FS_INFO); | |
4725 | pSMB->hdr.smb_buf_length += byte_count; | |
4726 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4727 | ||
4728 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4729 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4730 | if (rc) { | |
b6b38f70 | 4731 | cFYI(1, "Send error in QFSUnixInfo = %d", rc); |
1da177e4 LT |
4732 | } else { /* decode response */ |
4733 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4734 | ||
4735 | if (rc || (pSMBr->ByteCount < 13)) { | |
4736 | rc = -EIO; /* bad smb */ | |
4737 | } else { | |
4738 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
4739 | response_data = | |
4740 | (FILE_SYSTEM_POSIX_INFO | |
4741 | *) (((char *) &pSMBr->hdr.Protocol) + | |
4742 | data_offset); | |
4743 | FSData->f_bsize = | |
4744 | le32_to_cpu(response_data->BlockSize); | |
4745 | FSData->f_blocks = | |
4746 | le64_to_cpu(response_data->TotalBlocks); | |
4747 | FSData->f_bfree = | |
4748 | le64_to_cpu(response_data->BlocksAvail); | |
790fe579 | 4749 | if (response_data->UserBlocksAvail == cpu_to_le64(-1)) { |
1da177e4 LT |
4750 | FSData->f_bavail = FSData->f_bfree; |
4751 | } else { | |
4752 | FSData->f_bavail = | |
50c2f753 | 4753 | le64_to_cpu(response_data->UserBlocksAvail); |
1da177e4 | 4754 | } |
790fe579 | 4755 | if (response_data->TotalFileNodes != cpu_to_le64(-1)) |
1da177e4 | 4756 | FSData->f_files = |
50c2f753 | 4757 | le64_to_cpu(response_data->TotalFileNodes); |
790fe579 | 4758 | if (response_data->FreeFileNodes != cpu_to_le64(-1)) |
1da177e4 | 4759 | FSData->f_ffree = |
50c2f753 | 4760 | le64_to_cpu(response_data->FreeFileNodes); |
1da177e4 LT |
4761 | } |
4762 | } | |
4763 | cifs_buf_release(pSMB); | |
4764 | ||
4765 | if (rc == -EAGAIN) | |
4766 | goto QFSPosixRetry; | |
4767 | ||
4768 | return rc; | |
4769 | } | |
4770 | ||
4771 | ||
50c2f753 SF |
4772 | /* We can not use write of zero bytes trick to |
4773 | set file size due to need for large file support. Also note that | |
4774 | this SetPathInfo is preferred to SetFileInfo based method in next | |
1da177e4 LT |
4775 | routine which is only needed to work around a sharing violation bug |
4776 | in Samba which this routine can run into */ | |
4777 | ||
4778 | int | |
4779 | CIFSSMBSetEOF(const int xid, struct cifsTconInfo *tcon, const char *fileName, | |
4b18f2a9 | 4780 | __u64 size, bool SetAllocation, |
737b758c | 4781 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
4782 | { |
4783 | struct smb_com_transaction2_spi_req *pSMB = NULL; | |
4784 | struct smb_com_transaction2_spi_rsp *pSMBr = NULL; | |
4785 | struct file_end_of_file_info *parm_data; | |
4786 | int name_len; | |
4787 | int rc = 0; | |
4788 | int bytes_returned = 0; | |
4789 | __u16 params, byte_count, data_count, param_offset, offset; | |
4790 | ||
b6b38f70 | 4791 | cFYI(1, "In SetEOF"); |
1da177e4 LT |
4792 | SetEOFRetry: |
4793 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4794 | (void **) &pSMBr); | |
4795 | if (rc) | |
4796 | return rc; | |
4797 | ||
4798 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
4799 | name_len = | |
b1a45695 | 4800 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 4801 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
4802 | name_len++; /* trailing null */ |
4803 | name_len *= 2; | |
3e87d803 | 4804 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
4805 | name_len = strnlen(fileName, PATH_MAX); |
4806 | name_len++; /* trailing null */ | |
4807 | strncpy(pSMB->FileName, fileName, name_len); | |
4808 | } | |
4809 | params = 6 + name_len; | |
26f57364 | 4810 | data_count = sizeof(struct file_end_of_file_info); |
1da177e4 | 4811 | pSMB->MaxParameterCount = cpu_to_le16(2); |
3e87d803 | 4812 | pSMB->MaxDataCount = cpu_to_le16(4100); |
1da177e4 LT |
4813 | pSMB->MaxSetupCount = 0; |
4814 | pSMB->Reserved = 0; | |
4815 | pSMB->Flags = 0; | |
4816 | pSMB->Timeout = 0; | |
4817 | pSMB->Reserved2 = 0; | |
4818 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 4819 | InformationLevel) - 4; |
1da177e4 | 4820 | offset = param_offset + params; |
790fe579 | 4821 | if (SetAllocation) { |
50c2f753 SF |
4822 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
4823 | pSMB->InformationLevel = | |
4824 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO2); | |
4825 | else | |
4826 | pSMB->InformationLevel = | |
4827 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO); | |
4828 | } else /* Set File Size */ { | |
1da177e4 LT |
4829 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
4830 | pSMB->InformationLevel = | |
50c2f753 | 4831 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO2); |
1da177e4 LT |
4832 | else |
4833 | pSMB->InformationLevel = | |
50c2f753 | 4834 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO); |
1da177e4 LT |
4835 | } |
4836 | ||
4837 | parm_data = | |
4838 | (struct file_end_of_file_info *) (((char *) &pSMB->hdr.Protocol) + | |
4839 | offset); | |
4840 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4841 | pSMB->DataOffset = cpu_to_le16(offset); | |
4842 | pSMB->SetupCount = 1; | |
4843 | pSMB->Reserved3 = 0; | |
4844 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
4845 | byte_count = 3 /* pad */ + params + data_count; | |
4846 | pSMB->DataCount = cpu_to_le16(data_count); | |
4847 | pSMB->TotalDataCount = pSMB->DataCount; | |
4848 | pSMB->ParameterCount = cpu_to_le16(params); | |
4849 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4850 | pSMB->Reserved4 = 0; | |
4851 | pSMB->hdr.smb_buf_length += byte_count; | |
4852 | parm_data->FileSize = cpu_to_le64(size); | |
4853 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4854 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4855 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
ad7a2926 | 4856 | if (rc) |
b6b38f70 | 4857 | cFYI(1, "SetPathInfo (file size) returned %d", rc); |
1da177e4 LT |
4858 | |
4859 | cifs_buf_release(pSMB); | |
4860 | ||
4861 | if (rc == -EAGAIN) | |
4862 | goto SetEOFRetry; | |
4863 | ||
4864 | return rc; | |
4865 | } | |
4866 | ||
4867 | int | |
50c2f753 | 4868 | CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon, __u64 size, |
4b18f2a9 | 4869 | __u16 fid, __u32 pid_of_opener, bool SetAllocation) |
1da177e4 LT |
4870 | { |
4871 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
1da177e4 LT |
4872 | char *data_offset; |
4873 | struct file_end_of_file_info *parm_data; | |
4874 | int rc = 0; | |
1da177e4 LT |
4875 | __u16 params, param_offset, offset, byte_count, count; |
4876 | ||
b6b38f70 JP |
4877 | cFYI(1, "SetFileSize (via SetFileInfo) %lld", |
4878 | (long long)size); | |
cd63499c SF |
4879 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
4880 | ||
1da177e4 LT |
4881 | if (rc) |
4882 | return rc; | |
4883 | ||
4884 | pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener); | |
4885 | pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16)); | |
50c2f753 | 4886 | |
1da177e4 LT |
4887 | params = 6; |
4888 | pSMB->MaxSetupCount = 0; | |
4889 | pSMB->Reserved = 0; | |
4890 | pSMB->Flags = 0; | |
4891 | pSMB->Timeout = 0; | |
4892 | pSMB->Reserved2 = 0; | |
4893 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
4894 | offset = param_offset + params; | |
4895 | ||
50c2f753 | 4896 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; |
1da177e4 LT |
4897 | |
4898 | count = sizeof(struct file_end_of_file_info); | |
4899 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
582d21e5 SF |
4900 | /* BB find exact max SMB PDU from sess structure BB */ |
4901 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1da177e4 LT |
4902 | pSMB->SetupCount = 1; |
4903 | pSMB->Reserved3 = 0; | |
4904 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
4905 | byte_count = 3 /* pad */ + params + count; | |
4906 | pSMB->DataCount = cpu_to_le16(count); | |
4907 | pSMB->ParameterCount = cpu_to_le16(params); | |
4908 | pSMB->TotalDataCount = pSMB->DataCount; | |
4909 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4910 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4911 | parm_data = | |
50c2f753 SF |
4912 | (struct file_end_of_file_info *) (((char *) &pSMB->hdr.Protocol) |
4913 | + offset); | |
1da177e4 LT |
4914 | pSMB->DataOffset = cpu_to_le16(offset); |
4915 | parm_data->FileSize = cpu_to_le64(size); | |
4916 | pSMB->Fid = fid; | |
790fe579 | 4917 | if (SetAllocation) { |
1da177e4 LT |
4918 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
4919 | pSMB->InformationLevel = | |
4920 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO2); | |
4921 | else | |
4922 | pSMB->InformationLevel = | |
4923 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO); | |
50c2f753 | 4924 | } else /* Set File Size */ { |
1da177e4 LT |
4925 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
4926 | pSMB->InformationLevel = | |
50c2f753 | 4927 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO2); |
1da177e4 LT |
4928 | else |
4929 | pSMB->InformationLevel = | |
50c2f753 | 4930 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO); |
1da177e4 LT |
4931 | } |
4932 | pSMB->Reserved4 = 0; | |
4933 | pSMB->hdr.smb_buf_length += byte_count; | |
4934 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
133672ef | 4935 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); |
1da177e4 | 4936 | if (rc) { |
b6b38f70 | 4937 | cFYI(1, "Send error in SetFileInfo (SetFileSize) = %d", rc); |
1da177e4 LT |
4938 | } |
4939 | ||
50c2f753 | 4940 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
1da177e4 LT |
4941 | since file handle passed in no longer valid */ |
4942 | ||
4943 | return rc; | |
4944 | } | |
4945 | ||
50c2f753 | 4946 | /* Some legacy servers such as NT4 require that the file times be set on |
1da177e4 LT |
4947 | an open handle, rather than by pathname - this is awkward due to |
4948 | potential access conflicts on the open, but it is unavoidable for these | |
4949 | old servers since the only other choice is to go from 100 nanosecond DCE | |
4950 | time and resort to the original setpathinfo level which takes the ancient | |
4951 | DOS time format with 2 second granularity */ | |
4952 | int | |
2dd2dfa0 JL |
4953 | CIFSSMBSetFileInfo(const int xid, struct cifsTconInfo *tcon, |
4954 | const FILE_BASIC_INFO *data, __u16 fid, __u32 pid_of_opener) | |
1da177e4 LT |
4955 | { |
4956 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
1da177e4 LT |
4957 | char *data_offset; |
4958 | int rc = 0; | |
1da177e4 LT |
4959 | __u16 params, param_offset, offset, byte_count, count; |
4960 | ||
b6b38f70 | 4961 | cFYI(1, "Set Times (via SetFileInfo)"); |
cd63499c SF |
4962 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
4963 | ||
1da177e4 LT |
4964 | if (rc) |
4965 | return rc; | |
4966 | ||
2dd2dfa0 JL |
4967 | pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener); |
4968 | pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16)); | |
50c2f753 | 4969 | |
1da177e4 LT |
4970 | params = 6; |
4971 | pSMB->MaxSetupCount = 0; | |
4972 | pSMB->Reserved = 0; | |
4973 | pSMB->Flags = 0; | |
4974 | pSMB->Timeout = 0; | |
4975 | pSMB->Reserved2 = 0; | |
4976 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
4977 | offset = param_offset + params; | |
4978 | ||
50c2f753 | 4979 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; |
1da177e4 | 4980 | |
26f57364 | 4981 | count = sizeof(FILE_BASIC_INFO); |
1da177e4 | 4982 | pSMB->MaxParameterCount = cpu_to_le16(2); |
582d21e5 SF |
4983 | /* BB find max SMB PDU from sess */ |
4984 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1da177e4 LT |
4985 | pSMB->SetupCount = 1; |
4986 | pSMB->Reserved3 = 0; | |
4987 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
4988 | byte_count = 3 /* pad */ + params + count; | |
4989 | pSMB->DataCount = cpu_to_le16(count); | |
4990 | pSMB->ParameterCount = cpu_to_le16(params); | |
4991 | pSMB->TotalDataCount = pSMB->DataCount; | |
4992 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4993 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4994 | pSMB->DataOffset = cpu_to_le16(offset); | |
4995 | pSMB->Fid = fid; | |
4996 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) | |
4997 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO2); | |
4998 | else | |
4999 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO); | |
5000 | pSMB->Reserved4 = 0; | |
5001 | pSMB->hdr.smb_buf_length += byte_count; | |
5002 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
50c2f753 | 5003 | memcpy(data_offset, data, sizeof(FILE_BASIC_INFO)); |
133672ef | 5004 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); |
ad7a2926 | 5005 | if (rc) |
b6b38f70 | 5006 | cFYI(1, "Send error in Set Time (SetFileInfo) = %d", rc); |
1da177e4 | 5007 | |
50c2f753 | 5008 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
1da177e4 LT |
5009 | since file handle passed in no longer valid */ |
5010 | ||
5011 | return rc; | |
5012 | } | |
5013 | ||
6d22f098 JL |
5014 | int |
5015 | CIFSSMBSetFileDisposition(const int xid, struct cifsTconInfo *tcon, | |
5016 | bool delete_file, __u16 fid, __u32 pid_of_opener) | |
5017 | { | |
5018 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
5019 | char *data_offset; | |
5020 | int rc = 0; | |
5021 | __u16 params, param_offset, offset, byte_count, count; | |
5022 | ||
b6b38f70 | 5023 | cFYI(1, "Set File Disposition (via SetFileInfo)"); |
6d22f098 JL |
5024 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
5025 | ||
5026 | if (rc) | |
5027 | return rc; | |
5028 | ||
5029 | pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener); | |
5030 | pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16)); | |
5031 | ||
5032 | params = 6; | |
5033 | pSMB->MaxSetupCount = 0; | |
5034 | pSMB->Reserved = 0; | |
5035 | pSMB->Flags = 0; | |
5036 | pSMB->Timeout = 0; | |
5037 | pSMB->Reserved2 = 0; | |
5038 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
5039 | offset = param_offset + params; | |
5040 | ||
5041 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
5042 | ||
5043 | count = 1; | |
5044 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
5045 | /* BB find max SMB PDU from sess */ | |
5046 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
5047 | pSMB->SetupCount = 1; | |
5048 | pSMB->Reserved3 = 0; | |
5049 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
5050 | byte_count = 3 /* pad */ + params + count; | |
5051 | pSMB->DataCount = cpu_to_le16(count); | |
5052 | pSMB->ParameterCount = cpu_to_le16(params); | |
5053 | pSMB->TotalDataCount = pSMB->DataCount; | |
5054 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
5055 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
5056 | pSMB->DataOffset = cpu_to_le16(offset); | |
5057 | pSMB->Fid = fid; | |
5058 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_DISPOSITION_INFO); | |
5059 | pSMB->Reserved4 = 0; | |
5060 | pSMB->hdr.smb_buf_length += byte_count; | |
5061 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
5062 | *data_offset = delete_file ? 1 : 0; | |
5063 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); | |
5064 | if (rc) | |
b6b38f70 | 5065 | cFYI(1, "Send error in SetFileDisposition = %d", rc); |
6d22f098 JL |
5066 | |
5067 | return rc; | |
5068 | } | |
1da177e4 LT |
5069 | |
5070 | int | |
6fc000e5 JL |
5071 | CIFSSMBSetPathInfo(const int xid, struct cifsTconInfo *tcon, |
5072 | const char *fileName, const FILE_BASIC_INFO *data, | |
5073 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
5074 | { |
5075 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
5076 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
5077 | int name_len; | |
5078 | int rc = 0; | |
5079 | int bytes_returned = 0; | |
5080 | char *data_offset; | |
5081 | __u16 params, param_offset, offset, byte_count, count; | |
5082 | ||
b6b38f70 | 5083 | cFYI(1, "In SetTimes"); |
1da177e4 LT |
5084 | |
5085 | SetTimesRetry: | |
5086 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
5087 | (void **) &pSMBr); | |
5088 | if (rc) | |
5089 | return rc; | |
5090 | ||
5091 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
5092 | name_len = | |
b1a45695 | 5093 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 5094 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
5095 | name_len++; /* trailing null */ |
5096 | name_len *= 2; | |
50c2f753 | 5097 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
5098 | name_len = strnlen(fileName, PATH_MAX); |
5099 | name_len++; /* trailing null */ | |
5100 | strncpy(pSMB->FileName, fileName, name_len); | |
5101 | } | |
5102 | ||
5103 | params = 6 + name_len; | |
26f57364 | 5104 | count = sizeof(FILE_BASIC_INFO); |
1da177e4 | 5105 | pSMB->MaxParameterCount = cpu_to_le16(2); |
582d21e5 SF |
5106 | /* BB find max SMB PDU from sess structure BB */ |
5107 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1da177e4 LT |
5108 | pSMB->MaxSetupCount = 0; |
5109 | pSMB->Reserved = 0; | |
5110 | pSMB->Flags = 0; | |
5111 | pSMB->Timeout = 0; | |
5112 | pSMB->Reserved2 = 0; | |
5113 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 5114 | InformationLevel) - 4; |
1da177e4 LT |
5115 | offset = param_offset + params; |
5116 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
5117 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
5118 | pSMB->DataOffset = cpu_to_le16(offset); | |
5119 | pSMB->SetupCount = 1; | |
5120 | pSMB->Reserved3 = 0; | |
5121 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
5122 | byte_count = 3 /* pad */ + params + count; | |
5123 | ||
5124 | pSMB->DataCount = cpu_to_le16(count); | |
5125 | pSMB->ParameterCount = cpu_to_le16(params); | |
5126 | pSMB->TotalDataCount = pSMB->DataCount; | |
5127 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
5128 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) | |
5129 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO2); | |
5130 | else | |
5131 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO); | |
5132 | pSMB->Reserved4 = 0; | |
5133 | pSMB->hdr.smb_buf_length += byte_count; | |
26f57364 | 5134 | memcpy(data_offset, data, sizeof(FILE_BASIC_INFO)); |
1da177e4 LT |
5135 | pSMB->ByteCount = cpu_to_le16(byte_count); |
5136 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
5137 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
ad7a2926 | 5138 | if (rc) |
b6b38f70 | 5139 | cFYI(1, "SetPathInfo (times) returned %d", rc); |
1da177e4 LT |
5140 | |
5141 | cifs_buf_release(pSMB); | |
5142 | ||
5143 | if (rc == -EAGAIN) | |
5144 | goto SetTimesRetry; | |
5145 | ||
5146 | return rc; | |
5147 | } | |
5148 | ||
5149 | /* Can not be used to set time stamps yet (due to old DOS time format) */ | |
5150 | /* Can be used to set attributes */ | |
5151 | #if 0 /* Possibly not needed - since it turns out that strangely NT4 has a bug | |
5152 | handling it anyway and NT4 was what we thought it would be needed for | |
5153 | Do not delete it until we prove whether needed for Win9x though */ | |
5154 | int | |
5155 | CIFSSMBSetAttrLegacy(int xid, struct cifsTconInfo *tcon, char *fileName, | |
5156 | __u16 dos_attrs, const struct nls_table *nls_codepage) | |
5157 | { | |
5158 | SETATTR_REQ *pSMB = NULL; | |
5159 | SETATTR_RSP *pSMBr = NULL; | |
5160 | int rc = 0; | |
5161 | int bytes_returned; | |
5162 | int name_len; | |
5163 | ||
b6b38f70 | 5164 | cFYI(1, "In SetAttrLegacy"); |
1da177e4 LT |
5165 | |
5166 | SetAttrLgcyRetry: | |
5167 | rc = smb_init(SMB_COM_SETATTR, 8, tcon, (void **) &pSMB, | |
5168 | (void **) &pSMBr); | |
5169 | if (rc) | |
5170 | return rc; | |
5171 | ||
5172 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
5173 | name_len = | |
50c2f753 | 5174 | ConvertToUCS((__le16 *) pSMB->fileName, fileName, |
1da177e4 LT |
5175 | PATH_MAX, nls_codepage); |
5176 | name_len++; /* trailing null */ | |
5177 | name_len *= 2; | |
50c2f753 | 5178 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
5179 | name_len = strnlen(fileName, PATH_MAX); |
5180 | name_len++; /* trailing null */ | |
5181 | strncpy(pSMB->fileName, fileName, name_len); | |
5182 | } | |
5183 | pSMB->attr = cpu_to_le16(dos_attrs); | |
5184 | pSMB->BufferFormat = 0x04; | |
5185 | pSMB->hdr.smb_buf_length += name_len + 1; | |
5186 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
5187 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
5188 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
ad7a2926 | 5189 | if (rc) |
b6b38f70 | 5190 | cFYI(1, "Error in LegacySetAttr = %d", rc); |
1da177e4 LT |
5191 | |
5192 | cifs_buf_release(pSMB); | |
5193 | ||
5194 | if (rc == -EAGAIN) | |
5195 | goto SetAttrLgcyRetry; | |
5196 | ||
5197 | return rc; | |
5198 | } | |
5199 | #endif /* temporarily unneeded SetAttr legacy function */ | |
5200 | ||
654cf14a JL |
5201 | static void |
5202 | cifs_fill_unix_set_info(FILE_UNIX_BASIC_INFO *data_offset, | |
5203 | const struct cifs_unix_set_info_args *args) | |
5204 | { | |
5205 | u64 mode = args->mode; | |
5206 | ||
5207 | /* | |
5208 | * Samba server ignores set of file size to zero due to bugs in some | |
5209 | * older clients, but we should be precise - we use SetFileSize to | |
5210 | * set file size and do not want to truncate file size to zero | |
5211 | * accidently as happened on one Samba server beta by putting | |
5212 | * zero instead of -1 here | |
5213 | */ | |
5214 | data_offset->EndOfFile = cpu_to_le64(NO_CHANGE_64); | |
5215 | data_offset->NumOfBytes = cpu_to_le64(NO_CHANGE_64); | |
5216 | data_offset->LastStatusChange = cpu_to_le64(args->ctime); | |
5217 | data_offset->LastAccessTime = cpu_to_le64(args->atime); | |
5218 | data_offset->LastModificationTime = cpu_to_le64(args->mtime); | |
5219 | data_offset->Uid = cpu_to_le64(args->uid); | |
5220 | data_offset->Gid = cpu_to_le64(args->gid); | |
5221 | /* better to leave device as zero when it is */ | |
5222 | data_offset->DevMajor = cpu_to_le64(MAJOR(args->device)); | |
5223 | data_offset->DevMinor = cpu_to_le64(MINOR(args->device)); | |
5224 | data_offset->Permissions = cpu_to_le64(mode); | |
5225 | ||
5226 | if (S_ISREG(mode)) | |
5227 | data_offset->Type = cpu_to_le32(UNIX_FILE); | |
5228 | else if (S_ISDIR(mode)) | |
5229 | data_offset->Type = cpu_to_le32(UNIX_DIR); | |
5230 | else if (S_ISLNK(mode)) | |
5231 | data_offset->Type = cpu_to_le32(UNIX_SYMLINK); | |
5232 | else if (S_ISCHR(mode)) | |
5233 | data_offset->Type = cpu_to_le32(UNIX_CHARDEV); | |
5234 | else if (S_ISBLK(mode)) | |
5235 | data_offset->Type = cpu_to_le32(UNIX_BLOCKDEV); | |
5236 | else if (S_ISFIFO(mode)) | |
5237 | data_offset->Type = cpu_to_le32(UNIX_FIFO); | |
5238 | else if (S_ISSOCK(mode)) | |
5239 | data_offset->Type = cpu_to_le32(UNIX_SOCKET); | |
5240 | } | |
5241 | ||
3bbeeb3c JL |
5242 | int |
5243 | CIFSSMBUnixSetFileInfo(const int xid, struct cifsTconInfo *tcon, | |
5244 | const struct cifs_unix_set_info_args *args, | |
5245 | u16 fid, u32 pid_of_opener) | |
5246 | { | |
5247 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
5248 | FILE_UNIX_BASIC_INFO *data_offset; | |
5249 | int rc = 0; | |
5250 | u16 params, param_offset, offset, byte_count, count; | |
5251 | ||
b6b38f70 | 5252 | cFYI(1, "Set Unix Info (via SetFileInfo)"); |
3bbeeb3c JL |
5253 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
5254 | ||
5255 | if (rc) | |
5256 | return rc; | |
5257 | ||
5258 | pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener); | |
5259 | pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16)); | |
5260 | ||
5261 | params = 6; | |
5262 | pSMB->MaxSetupCount = 0; | |
5263 | pSMB->Reserved = 0; | |
5264 | pSMB->Flags = 0; | |
5265 | pSMB->Timeout = 0; | |
5266 | pSMB->Reserved2 = 0; | |
5267 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
5268 | offset = param_offset + params; | |
5269 | ||
5270 | data_offset = (FILE_UNIX_BASIC_INFO *) | |
5271 | ((char *)(&pSMB->hdr.Protocol) + offset); | |
5272 | count = sizeof(FILE_UNIX_BASIC_INFO); | |
5273 | ||
5274 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
5275 | /* BB find max SMB PDU from sess */ | |
5276 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
5277 | pSMB->SetupCount = 1; | |
5278 | pSMB->Reserved3 = 0; | |
5279 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
5280 | byte_count = 3 /* pad */ + params + count; | |
5281 | pSMB->DataCount = cpu_to_le16(count); | |
5282 | pSMB->ParameterCount = cpu_to_le16(params); | |
5283 | pSMB->TotalDataCount = pSMB->DataCount; | |
5284 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
5285 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
5286 | pSMB->DataOffset = cpu_to_le16(offset); | |
5287 | pSMB->Fid = fid; | |
5288 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_BASIC); | |
5289 | pSMB->Reserved4 = 0; | |
5290 | pSMB->hdr.smb_buf_length += byte_count; | |
5291 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
5292 | ||
5293 | cifs_fill_unix_set_info(data_offset, args); | |
5294 | ||
5295 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); | |
5296 | if (rc) | |
b6b38f70 | 5297 | cFYI(1, "Send error in Set Time (SetFileInfo) = %d", rc); |
3bbeeb3c JL |
5298 | |
5299 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
5300 | since file handle passed in no longer valid */ | |
5301 | ||
5302 | return rc; | |
5303 | } | |
5304 | ||
1da177e4 | 5305 | int |
01ea95e3 JL |
5306 | CIFSSMBUnixSetPathInfo(const int xid, struct cifsTconInfo *tcon, char *fileName, |
5307 | const struct cifs_unix_set_info_args *args, | |
5308 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
5309 | { |
5310 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
5311 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
5312 | int name_len; | |
5313 | int rc = 0; | |
5314 | int bytes_returned = 0; | |
5315 | FILE_UNIX_BASIC_INFO *data_offset; | |
5316 | __u16 params, param_offset, offset, count, byte_count; | |
5317 | ||
b6b38f70 | 5318 | cFYI(1, "In SetUID/GID/Mode"); |
1da177e4 LT |
5319 | setPermsRetry: |
5320 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
5321 | (void **) &pSMBr); | |
5322 | if (rc) | |
5323 | return rc; | |
5324 | ||
5325 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
5326 | name_len = | |
50c2f753 | 5327 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 5328 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
5329 | name_len++; /* trailing null */ |
5330 | name_len *= 2; | |
3e87d803 | 5331 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
5332 | name_len = strnlen(fileName, PATH_MAX); |
5333 | name_len++; /* trailing null */ | |
5334 | strncpy(pSMB->FileName, fileName, name_len); | |
5335 | } | |
5336 | ||
5337 | params = 6 + name_len; | |
26f57364 | 5338 | count = sizeof(FILE_UNIX_BASIC_INFO); |
1da177e4 | 5339 | pSMB->MaxParameterCount = cpu_to_le16(2); |
582d21e5 SF |
5340 | /* BB find max SMB PDU from sess structure BB */ |
5341 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1da177e4 LT |
5342 | pSMB->MaxSetupCount = 0; |
5343 | pSMB->Reserved = 0; | |
5344 | pSMB->Flags = 0; | |
5345 | pSMB->Timeout = 0; | |
5346 | pSMB->Reserved2 = 0; | |
5347 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 5348 | InformationLevel) - 4; |
1da177e4 LT |
5349 | offset = param_offset + params; |
5350 | data_offset = | |
5351 | (FILE_UNIX_BASIC_INFO *) ((char *) &pSMB->hdr.Protocol + | |
5352 | offset); | |
5353 | memset(data_offset, 0, count); | |
5354 | pSMB->DataOffset = cpu_to_le16(offset); | |
5355 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
5356 | pSMB->SetupCount = 1; | |
5357 | pSMB->Reserved3 = 0; | |
5358 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
5359 | byte_count = 3 /* pad */ + params + count; | |
5360 | pSMB->ParameterCount = cpu_to_le16(params); | |
5361 | pSMB->DataCount = cpu_to_le16(count); | |
5362 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
5363 | pSMB->TotalDataCount = pSMB->DataCount; | |
5364 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_BASIC); | |
5365 | pSMB->Reserved4 = 0; | |
5366 | pSMB->hdr.smb_buf_length += byte_count; | |
1da177e4 | 5367 | |
654cf14a | 5368 | cifs_fill_unix_set_info(data_offset, args); |
1da177e4 LT |
5369 | |
5370 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
5371 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
5372 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
ad7a2926 | 5373 | if (rc) |
b6b38f70 | 5374 | cFYI(1, "SetPathInfo (perms) returned %d", rc); |
1da177e4 | 5375 | |
0d817bc0 | 5376 | cifs_buf_release(pSMB); |
1da177e4 LT |
5377 | if (rc == -EAGAIN) |
5378 | goto setPermsRetry; | |
5379 | return rc; | |
5380 | } | |
5381 | ||
50c2f753 | 5382 | int CIFSSMBNotify(const int xid, struct cifsTconInfo *tcon, |
167a251a | 5383 | const int notify_subdirs, const __u16 netfid, |
50c2f753 | 5384 | __u32 filter, struct file *pfile, int multishot, |
167a251a | 5385 | const struct nls_table *nls_codepage) |
1da177e4 LT |
5386 | { |
5387 | int rc = 0; | |
50c2f753 SF |
5388 | struct smb_com_transaction_change_notify_req *pSMB = NULL; |
5389 | struct smb_com_ntransaction_change_notify_rsp *pSMBr = NULL; | |
abb15b8a | 5390 | struct dir_notify_req *dnotify_req; |
1da177e4 LT |
5391 | int bytes_returned; |
5392 | ||
b6b38f70 | 5393 | cFYI(1, "In CIFSSMBNotify for file handle %d", (int)netfid); |
1da177e4 | 5394 | rc = smb_init(SMB_COM_NT_TRANSACT, 23, tcon, (void **) &pSMB, |
50c2f753 | 5395 | (void **) &pSMBr); |
1da177e4 LT |
5396 | if (rc) |
5397 | return rc; | |
5398 | ||
5399 | pSMB->TotalParameterCount = 0 ; | |
5400 | pSMB->TotalDataCount = 0; | |
5401 | pSMB->MaxParameterCount = cpu_to_le32(2); | |
5402 | /* BB find exact data count max from sess structure BB */ | |
5403 | pSMB->MaxDataCount = 0; /* same in little endian or be */ | |
0a4b92c0 SF |
5404 | /* BB VERIFY verify which is correct for above BB */ |
5405 | pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf - | |
5406 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
5407 | ||
1da177e4 LT |
5408 | pSMB->MaxSetupCount = 4; |
5409 | pSMB->Reserved = 0; | |
5410 | pSMB->ParameterOffset = 0; | |
5411 | pSMB->DataCount = 0; | |
5412 | pSMB->DataOffset = 0; | |
5413 | pSMB->SetupCount = 4; /* single byte does not need le conversion */ | |
5414 | pSMB->SubCommand = cpu_to_le16(NT_TRANSACT_NOTIFY_CHANGE); | |
5415 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
790fe579 | 5416 | if (notify_subdirs) |
1da177e4 LT |
5417 | pSMB->WatchTree = 1; /* one byte - no le conversion needed */ |
5418 | pSMB->Reserved2 = 0; | |
5419 | pSMB->CompletionFilter = cpu_to_le32(filter); | |
5420 | pSMB->Fid = netfid; /* file handle always le */ | |
5421 | pSMB->ByteCount = 0; | |
5422 | ||
5423 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
133672ef SF |
5424 | (struct smb_hdr *)pSMBr, &bytes_returned, |
5425 | CIFS_ASYNC_OP); | |
1da177e4 | 5426 | if (rc) { |
b6b38f70 | 5427 | cFYI(1, "Error in Notify = %d", rc); |
ff5dbd9e SF |
5428 | } else { |
5429 | /* Add file to outstanding requests */ | |
50c2f753 | 5430 | /* BB change to kmem cache alloc */ |
5cbded58 | 5431 | dnotify_req = kmalloc( |
47c786e7 SF |
5432 | sizeof(struct dir_notify_req), |
5433 | GFP_KERNEL); | |
790fe579 | 5434 | if (dnotify_req) { |
47c786e7 SF |
5435 | dnotify_req->Pid = pSMB->hdr.Pid; |
5436 | dnotify_req->PidHigh = pSMB->hdr.PidHigh; | |
5437 | dnotify_req->Mid = pSMB->hdr.Mid; | |
5438 | dnotify_req->Tid = pSMB->hdr.Tid; | |
5439 | dnotify_req->Uid = pSMB->hdr.Uid; | |
5440 | dnotify_req->netfid = netfid; | |
5441 | dnotify_req->pfile = pfile; | |
5442 | dnotify_req->filter = filter; | |
5443 | dnotify_req->multishot = multishot; | |
5444 | spin_lock(&GlobalMid_Lock); | |
50c2f753 | 5445 | list_add_tail(&dnotify_req->lhead, |
47c786e7 SF |
5446 | &GlobalDnotifyReqList); |
5447 | spin_unlock(&GlobalMid_Lock); | |
50c2f753 | 5448 | } else |
47c786e7 | 5449 | rc = -ENOMEM; |
1da177e4 LT |
5450 | } |
5451 | cifs_buf_release(pSMB); | |
50c2f753 | 5452 | return rc; |
1da177e4 | 5453 | } |
31c0519f | 5454 | |
1da177e4 | 5455 | #ifdef CONFIG_CIFS_XATTR |
31c0519f JL |
5456 | /* |
5457 | * Do a path-based QUERY_ALL_EAS call and parse the result. This is a common | |
5458 | * function used by listxattr and getxattr type calls. When ea_name is set, | |
5459 | * it looks for that attribute name and stuffs that value into the EAData | |
5460 | * buffer. When ea_name is NULL, it stuffs a list of attribute names into the | |
5461 | * buffer. In both cases, the return value is either the length of the | |
5462 | * resulting data or a negative error code. If EAData is a NULL pointer then | |
5463 | * the data isn't copied to it, but the length is returned. | |
5464 | */ | |
1da177e4 LT |
5465 | ssize_t |
5466 | CIFSSMBQAllEAs(const int xid, struct cifsTconInfo *tcon, | |
31c0519f JL |
5467 | const unsigned char *searchName, const unsigned char *ea_name, |
5468 | char *EAData, size_t buf_size, | |
5469 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
5470 | { |
5471 | /* BB assumes one setup word */ | |
5472 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
5473 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
5474 | int rc = 0; | |
5475 | int bytes_returned; | |
6e462b9f | 5476 | int list_len; |
f0d3868b | 5477 | struct fealist *ea_response_data; |
50c2f753 SF |
5478 | struct fea *temp_fea; |
5479 | char *temp_ptr; | |
0cd126b5 | 5480 | char *end_of_smb; |
f0d3868b | 5481 | __u16 params, byte_count, data_offset; |
1da177e4 | 5482 | |
b6b38f70 | 5483 | cFYI(1, "In Query All EAs path %s", searchName); |
1da177e4 LT |
5484 | QAllEAsRetry: |
5485 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
5486 | (void **) &pSMBr); | |
5487 | if (rc) | |
5488 | return rc; | |
5489 | ||
5490 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
6e462b9f | 5491 | list_len = |
50c2f753 | 5492 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 5493 | PATH_MAX, nls_codepage, remap); |
6e462b9f JL |
5494 | list_len++; /* trailing null */ |
5495 | list_len *= 2; | |
1da177e4 | 5496 | } else { /* BB improve the check for buffer overruns BB */ |
6e462b9f JL |
5497 | list_len = strnlen(searchName, PATH_MAX); |
5498 | list_len++; /* trailing null */ | |
5499 | strncpy(pSMB->FileName, searchName, list_len); | |
1da177e4 LT |
5500 | } |
5501 | ||
6e462b9f | 5502 | params = 2 /* level */ + 4 /* reserved */ + list_len /* includes NUL */; |
1da177e4 LT |
5503 | pSMB->TotalDataCount = 0; |
5504 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
582d21e5 | 5505 | /* BB find exact max SMB PDU from sess structure BB */ |
e529614a | 5506 | pSMB->MaxDataCount = cpu_to_le16(CIFSMaxBufSize); |
1da177e4 LT |
5507 | pSMB->MaxSetupCount = 0; |
5508 | pSMB->Reserved = 0; | |
5509 | pSMB->Flags = 0; | |
5510 | pSMB->Timeout = 0; | |
5511 | pSMB->Reserved2 = 0; | |
5512 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 5513 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
1da177e4 LT |
5514 | pSMB->DataCount = 0; |
5515 | pSMB->DataOffset = 0; | |
5516 | pSMB->SetupCount = 1; | |
5517 | pSMB->Reserved3 = 0; | |
5518 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
5519 | byte_count = params + 1 /* pad */ ; | |
5520 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
5521 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
5522 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_QUERY_ALL_EAS); | |
5523 | pSMB->Reserved4 = 0; | |
5524 | pSMB->hdr.smb_buf_length += byte_count; | |
5525 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
5526 | ||
5527 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
5528 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
5529 | if (rc) { | |
b6b38f70 | 5530 | cFYI(1, "Send error in QueryAllEAs = %d", rc); |
f0d3868b JL |
5531 | goto QAllEAsOut; |
5532 | } | |
1da177e4 | 5533 | |
f0d3868b JL |
5534 | |
5535 | /* BB also check enough total bytes returned */ | |
5536 | /* BB we need to improve the validity checking | |
5537 | of these trans2 responses */ | |
5538 | ||
5539 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
5540 | if (rc || (pSMBr->ByteCount < 4)) { | |
5541 | rc = -EIO; /* bad smb */ | |
5542 | goto QAllEAsOut; | |
5543 | } | |
5544 | ||
5545 | /* check that length of list is not more than bcc */ | |
5546 | /* check that each entry does not go beyond length | |
5547 | of list */ | |
5548 | /* check that each element of each entry does not | |
5549 | go beyond end of list */ | |
5550 | /* validate_trans2_offsets() */ | |
5551 | /* BB check if start of smb + data_offset > &bcc+ bcc */ | |
5552 | ||
5553 | data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
5554 | ea_response_data = (struct fealist *) | |
5555 | (((char *) &pSMBr->hdr.Protocol) + data_offset); | |
5556 | ||
6e462b9f | 5557 | list_len = le32_to_cpu(ea_response_data->list_len); |
b6b38f70 | 5558 | cFYI(1, "ea length %d", list_len); |
6e462b9f | 5559 | if (list_len <= 8) { |
b6b38f70 | 5560 | cFYI(1, "empty EA list returned from server"); |
f0d3868b JL |
5561 | goto QAllEAsOut; |
5562 | } | |
5563 | ||
0cd126b5 JL |
5564 | /* make sure list_len doesn't go past end of SMB */ |
5565 | end_of_smb = (char *)pByteArea(&pSMBr->hdr) + BCC(&pSMBr->hdr); | |
5566 | if ((char *)ea_response_data + list_len > end_of_smb) { | |
b6b38f70 | 5567 | cFYI(1, "EA list appears to go beyond SMB"); |
0cd126b5 JL |
5568 | rc = -EIO; |
5569 | goto QAllEAsOut; | |
5570 | } | |
5571 | ||
f0d3868b | 5572 | /* account for ea list len */ |
6e462b9f | 5573 | list_len -= 4; |
f0d3868b JL |
5574 | temp_fea = ea_response_data->list; |
5575 | temp_ptr = (char *)temp_fea; | |
6e462b9f | 5576 | while (list_len > 0) { |
122ca007 | 5577 | unsigned int name_len; |
f0d3868b | 5578 | __u16 value_len; |
0cd126b5 | 5579 | |
6e462b9f | 5580 | list_len -= 4; |
f0d3868b | 5581 | temp_ptr += 4; |
0cd126b5 JL |
5582 | /* make sure we can read name_len and value_len */ |
5583 | if (list_len < 0) { | |
b6b38f70 | 5584 | cFYI(1, "EA entry goes beyond length of list"); |
0cd126b5 JL |
5585 | rc = -EIO; |
5586 | goto QAllEAsOut; | |
5587 | } | |
5588 | ||
5589 | name_len = temp_fea->name_len; | |
5590 | value_len = le16_to_cpu(temp_fea->value_len); | |
5591 | list_len -= name_len + 1 + value_len; | |
5592 | if (list_len < 0) { | |
b6b38f70 | 5593 | cFYI(1, "EA entry goes beyond length of list"); |
0cd126b5 JL |
5594 | rc = -EIO; |
5595 | goto QAllEAsOut; | |
5596 | } | |
5597 | ||
31c0519f JL |
5598 | if (ea_name) { |
5599 | if (strncmp(ea_name, temp_ptr, name_len) == 0) { | |
5600 | temp_ptr += name_len + 1; | |
5601 | rc = value_len; | |
5602 | if (buf_size == 0) | |
5603 | goto QAllEAsOut; | |
5604 | if ((size_t)value_len > buf_size) { | |
5605 | rc = -ERANGE; | |
5606 | goto QAllEAsOut; | |
5607 | } | |
5608 | memcpy(EAData, temp_ptr, value_len); | |
5609 | goto QAllEAsOut; | |
5610 | } | |
f0d3868b | 5611 | } else { |
31c0519f JL |
5612 | /* account for prefix user. and trailing null */ |
5613 | rc += (5 + 1 + name_len); | |
5614 | if (rc < (int) buf_size) { | |
5615 | memcpy(EAData, "user.", 5); | |
5616 | EAData += 5; | |
5617 | memcpy(EAData, temp_ptr, name_len); | |
5618 | EAData += name_len; | |
5619 | /* null terminate name */ | |
5620 | *EAData = 0; | |
5621 | ++EAData; | |
5622 | } else if (buf_size == 0) { | |
5623 | /* skip copy - calc size only */ | |
5624 | } else { | |
5625 | /* stop before overrun buffer */ | |
5626 | rc = -ERANGE; | |
5627 | break; | |
5628 | } | |
1da177e4 | 5629 | } |
0cd126b5 | 5630 | temp_ptr += name_len + 1 + value_len; |
f0d3868b | 5631 | temp_fea = (struct fea *)temp_ptr; |
1da177e4 | 5632 | } |
f0d3868b | 5633 | |
31c0519f JL |
5634 | /* didn't find the named attribute */ |
5635 | if (ea_name) | |
5636 | rc = -ENODATA; | |
5637 | ||
f0d3868b | 5638 | QAllEAsOut: |
0d817bc0 | 5639 | cifs_buf_release(pSMB); |
1da177e4 LT |
5640 | if (rc == -EAGAIN) |
5641 | goto QAllEAsRetry; | |
5642 | ||
5643 | return (ssize_t)rc; | |
5644 | } | |
5645 | ||
1da177e4 LT |
5646 | int |
5647 | CIFSSMBSetEA(const int xid, struct cifsTconInfo *tcon, const char *fileName, | |
50c2f753 SF |
5648 | const char *ea_name, const void *ea_value, |
5649 | const __u16 ea_value_len, const struct nls_table *nls_codepage, | |
5650 | int remap) | |
1da177e4 LT |
5651 | { |
5652 | struct smb_com_transaction2_spi_req *pSMB = NULL; | |
5653 | struct smb_com_transaction2_spi_rsp *pSMBr = NULL; | |
5654 | struct fealist *parm_data; | |
5655 | int name_len; | |
5656 | int rc = 0; | |
5657 | int bytes_returned = 0; | |
5658 | __u16 params, param_offset, byte_count, offset, count; | |
5659 | ||
b6b38f70 | 5660 | cFYI(1, "In SetEA"); |
1da177e4 LT |
5661 | SetEARetry: |
5662 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
5663 | (void **) &pSMBr); | |
5664 | if (rc) | |
5665 | return rc; | |
5666 | ||
5667 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
5668 | name_len = | |
50c2f753 | 5669 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 5670 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
5671 | name_len++; /* trailing null */ |
5672 | name_len *= 2; | |
50c2f753 | 5673 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
5674 | name_len = strnlen(fileName, PATH_MAX); |
5675 | name_len++; /* trailing null */ | |
5676 | strncpy(pSMB->FileName, fileName, name_len); | |
5677 | } | |
5678 | ||
5679 | params = 6 + name_len; | |
5680 | ||
5681 | /* done calculating parms using name_len of file name, | |
5682 | now use name_len to calculate length of ea name | |
5683 | we are going to create in the inode xattrs */ | |
790fe579 | 5684 | if (ea_name == NULL) |
1da177e4 LT |
5685 | name_len = 0; |
5686 | else | |
50c2f753 | 5687 | name_len = strnlen(ea_name, 255); |
1da177e4 | 5688 | |
dae5dbdb | 5689 | count = sizeof(*parm_data) + ea_value_len + name_len; |
1da177e4 | 5690 | pSMB->MaxParameterCount = cpu_to_le16(2); |
582d21e5 SF |
5691 | /* BB find max SMB PDU from sess */ |
5692 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1da177e4 LT |
5693 | pSMB->MaxSetupCount = 0; |
5694 | pSMB->Reserved = 0; | |
5695 | pSMB->Flags = 0; | |
5696 | pSMB->Timeout = 0; | |
5697 | pSMB->Reserved2 = 0; | |
5698 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 5699 | InformationLevel) - 4; |
1da177e4 LT |
5700 | offset = param_offset + params; |
5701 | pSMB->InformationLevel = | |
5702 | cpu_to_le16(SMB_SET_FILE_EA); | |
5703 | ||
5704 | parm_data = | |
5705 | (struct fealist *) (((char *) &pSMB->hdr.Protocol) + | |
5706 | offset); | |
5707 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
5708 | pSMB->DataOffset = cpu_to_le16(offset); | |
5709 | pSMB->SetupCount = 1; | |
5710 | pSMB->Reserved3 = 0; | |
5711 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
5712 | byte_count = 3 /* pad */ + params + count; | |
5713 | pSMB->DataCount = cpu_to_le16(count); | |
5714 | parm_data->list_len = cpu_to_le32(count); | |
5715 | parm_data->list[0].EA_flags = 0; | |
5716 | /* we checked above that name len is less than 255 */ | |
53b3531b | 5717 | parm_data->list[0].name_len = (__u8)name_len; |
1da177e4 | 5718 | /* EA names are always ASCII */ |
790fe579 | 5719 | if (ea_name) |
50c2f753 | 5720 | strncpy(parm_data->list[0].name, ea_name, name_len); |
1da177e4 LT |
5721 | parm_data->list[0].name[name_len] = 0; |
5722 | parm_data->list[0].value_len = cpu_to_le16(ea_value_len); | |
5723 | /* caller ensures that ea_value_len is less than 64K but | |
5724 | we need to ensure that it fits within the smb */ | |
5725 | ||
50c2f753 SF |
5726 | /*BB add length check to see if it would fit in |
5727 | negotiated SMB buffer size BB */ | |
790fe579 SF |
5728 | /* if (ea_value_len > buffer_size - 512 (enough for header)) */ |
5729 | if (ea_value_len) | |
50c2f753 SF |
5730 | memcpy(parm_data->list[0].name+name_len+1, |
5731 | ea_value, ea_value_len); | |
1da177e4 LT |
5732 | |
5733 | pSMB->TotalDataCount = pSMB->DataCount; | |
5734 | pSMB->ParameterCount = cpu_to_le16(params); | |
5735 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
5736 | pSMB->Reserved4 = 0; | |
5737 | pSMB->hdr.smb_buf_length += byte_count; | |
5738 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
5739 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
5740 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
ad7a2926 | 5741 | if (rc) |
b6b38f70 | 5742 | cFYI(1, "SetPathInfo (EA) returned %d", rc); |
1da177e4 LT |
5743 | |
5744 | cifs_buf_release(pSMB); | |
5745 | ||
5746 | if (rc == -EAGAIN) | |
5747 | goto SetEARetry; | |
5748 | ||
5749 | return rc; | |
5750 | } | |
5751 | ||
5752 | #endif |