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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 */ | |
4477288a | 94 | spin_lock(&cifs_file_list_lock); |
1da177e4 | 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 | 99 | } |
4477288a | 100 | spin_unlock(&cifs_file_list_lock); |
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; | |
1da177e4 LT |
336 | |
337 | /* check for plausible wct, bcc and t2 data and parm sizes */ | |
338 | /* check for parm and data offset going beyond end of smb */ | |
790fe579 SF |
339 | if (pSMB->hdr.WordCount >= 10) { |
340 | if ((le16_to_cpu(pSMB->t2_rsp.ParameterOffset) <= 1024) && | |
1da177e4 LT |
341 | (le16_to_cpu(pSMB->t2_rsp.DataOffset) <= 1024)) { |
342 | /* check that bcc is at least as big as parms + data */ | |
343 | /* check that bcc is less than negotiated smb buffer */ | |
344 | total_size = le16_to_cpu(pSMB->t2_rsp.ParameterCount); | |
790fe579 | 345 | if (total_size < 512) { |
c18c842b | 346 | total_size += |
63135e08 | 347 | le16_to_cpu(pSMB->t2_rsp.DataCount); |
690c522f JL |
348 | if (total_size <= get_bcc(&pSMB->hdr) && |
349 | total_size < | |
350 | CIFSMaxBufSize + MAX_CIFS_HDR_SIZE) { | |
1da177e4 LT |
351 | return 0; |
352 | } | |
1da177e4 LT |
353 | } |
354 | } | |
355 | } | |
50c2f753 | 356 | cifs_dump_mem("Invalid transact2 SMB: ", (char *)pSMB, |
1da177e4 LT |
357 | sizeof(struct smb_t2_rsp) + 16); |
358 | return rc; | |
359 | } | |
690c522f | 360 | |
1da177e4 LT |
361 | int |
362 | CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) | |
363 | { | |
364 | NEGOTIATE_REQ *pSMB; | |
365 | NEGOTIATE_RSP *pSMBr; | |
366 | int rc = 0; | |
367 | int bytes_returned; | |
3979877e | 368 | int i; |
50c2f753 | 369 | struct TCP_Server_Info *server; |
1da177e4 | 370 | u16 count; |
750d1151 | 371 | unsigned int secFlags; |
1da177e4 | 372 | |
790fe579 | 373 | if (ses->server) |
1da177e4 LT |
374 | server = ses->server; |
375 | else { | |
376 | rc = -EIO; | |
377 | return rc; | |
378 | } | |
379 | rc = smb_init(SMB_COM_NEGOTIATE, 0, NULL /* no tcon yet */ , | |
380 | (void **) &pSMB, (void **) &pSMBr); | |
381 | if (rc) | |
382 | return rc; | |
750d1151 SF |
383 | |
384 | /* if any of auth flags (ie not sign or seal) are overriden use them */ | |
790fe579 | 385 | if (ses->overrideSecFlg & (~(CIFSSEC_MUST_SIGN | CIFSSEC_MUST_SEAL))) |
762e5ab7 | 386 | secFlags = ses->overrideSecFlg; /* BB FIXME fix sign flags? */ |
750d1151 | 387 | else /* if override flags set only sign/seal OR them with global auth */ |
04912d6a | 388 | secFlags = global_secflags | ses->overrideSecFlg; |
750d1151 | 389 | |
b6b38f70 | 390 | cFYI(1, "secFlags 0x%x", secFlags); |
f40c5628 | 391 | |
1982c344 | 392 | pSMB->hdr.Mid = GetNextMid(server); |
100c1ddc | 393 | pSMB->hdr.Flags2 |= (SMBFLG2_UNICODE | SMBFLG2_ERR_STATUS); |
a013689d | 394 | |
100c1ddc | 395 | if ((secFlags & CIFSSEC_MUST_KRB5) == CIFSSEC_MUST_KRB5) |
254e55ed | 396 | pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC; |
a013689d | 397 | else if ((secFlags & CIFSSEC_AUTH_MASK) == CIFSSEC_MAY_KRB5) { |
b6b38f70 | 398 | cFYI(1, "Kerberos only mechanism, enable extended security"); |
a013689d | 399 | pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC; |
b4d6fcf1 | 400 | } else if ((secFlags & CIFSSEC_MUST_NTLMSSP) == CIFSSEC_MUST_NTLMSSP) |
ac683924 SF |
401 | pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC; |
402 | else if ((secFlags & CIFSSEC_AUTH_MASK) == CIFSSEC_MAY_NTLMSSP) { | |
b6b38f70 | 403 | cFYI(1, "NTLMSSP only mechanism, enable extended security"); |
ac683924 SF |
404 | pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC; |
405 | } | |
50c2f753 | 406 | |
3979877e | 407 | count = 0; |
50c2f753 | 408 | for (i = 0; i < CIFS_NUM_PROT; i++) { |
3979877e SF |
409 | strncpy(pSMB->DialectsArray+count, protocols[i].name, 16); |
410 | count += strlen(protocols[i].name) + 1; | |
411 | /* null at end of source and target buffers anyway */ | |
412 | } | |
1da177e4 LT |
413 | pSMB->hdr.smb_buf_length += count; |
414 | pSMB->ByteCount = cpu_to_le16(count); | |
415 | ||
416 | rc = SendReceive(xid, ses, (struct smb_hdr *) pSMB, | |
417 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
50c2f753 | 418 | if (rc != 0) |
254e55ed SF |
419 | goto neg_err_exit; |
420 | ||
9bf67e51 JL |
421 | server->dialect = le16_to_cpu(pSMBr->DialectIndex); |
422 | cFYI(1, "Dialect: %d", server->dialect); | |
254e55ed | 423 | /* Check wct = 1 error case */ |
9bf67e51 | 424 | if ((pSMBr->hdr.WordCount < 13) || (server->dialect == BAD_PROT)) { |
254e55ed | 425 | /* core returns wct = 1, but we do not ask for core - otherwise |
50c2f753 | 426 | small wct just comes when dialect index is -1 indicating we |
254e55ed SF |
427 | could not negotiate a common dialect */ |
428 | rc = -EOPNOTSUPP; | |
429 | goto neg_err_exit; | |
50c2f753 | 430 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
790fe579 | 431 | } else if ((pSMBr->hdr.WordCount == 13) |
9bf67e51 JL |
432 | && ((server->dialect == LANMAN_PROT) |
433 | || (server->dialect == LANMAN2_PROT))) { | |
b815f1e5 | 434 | __s16 tmp; |
50c2f753 | 435 | struct lanman_neg_rsp *rsp = (struct lanman_neg_rsp *)pSMBr; |
254e55ed | 436 | |
790fe579 | 437 | if ((secFlags & CIFSSEC_MAY_LANMAN) || |
750d1151 | 438 | (secFlags & CIFSSEC_MAY_PLNTXT)) |
254e55ed SF |
439 | server->secType = LANMAN; |
440 | else { | |
b6b38f70 JP |
441 | cERROR(1, "mount failed weak security disabled" |
442 | " in /proc/fs/cifs/SecurityFlags"); | |
3979877e SF |
443 | rc = -EOPNOTSUPP; |
444 | goto neg_err_exit; | |
50c2f753 | 445 | } |
254e55ed SF |
446 | server->secMode = (__u8)le16_to_cpu(rsp->SecurityMode); |
447 | server->maxReq = le16_to_cpu(rsp->MaxMpxCount); | |
448 | server->maxBuf = min((__u32)le16_to_cpu(rsp->MaxBufSize), | |
3979877e | 449 | (__u32)CIFSMaxBufSize + MAX_CIFS_HDR_SIZE); |
eca6acf9 | 450 | server->max_vcs = le16_to_cpu(rsp->MaxNumberVcs); |
254e55ed SF |
451 | /* even though we do not use raw we might as well set this |
452 | accurately, in case we ever find a need for it */ | |
790fe579 | 453 | if ((le16_to_cpu(rsp->RawMode) & RAW_ENABLE) == RAW_ENABLE) { |
eca6acf9 | 454 | server->max_rw = 0xFF00; |
254e55ed SF |
455 | server->capabilities = CAP_MPX_MODE | CAP_RAW_MODE; |
456 | } else { | |
eca6acf9 | 457 | server->max_rw = 0;/* do not need to use raw anyway */ |
254e55ed SF |
458 | server->capabilities = CAP_MPX_MODE; |
459 | } | |
b815f1e5 | 460 | tmp = (__s16)le16_to_cpu(rsp->ServerTimeZone); |
1a70d652 | 461 | if (tmp == -1) { |
25ee4a98 SF |
462 | /* OS/2 often does not set timezone therefore |
463 | * we must use server time to calc time zone. | |
b815f1e5 SF |
464 | * Could deviate slightly from the right zone. |
465 | * Smallest defined timezone difference is 15 minutes | |
466 | * (i.e. Nepal). Rounding up/down is done to match | |
467 | * this requirement. | |
25ee4a98 | 468 | */ |
b815f1e5 | 469 | int val, seconds, remain, result; |
25ee4a98 SF |
470 | struct timespec ts, utc; |
471 | utc = CURRENT_TIME; | |
c4a2c08d JL |
472 | ts = cnvrtDosUnixTm(rsp->SrvTime.Date, |
473 | rsp->SrvTime.Time, 0); | |
b6b38f70 | 474 | cFYI(1, "SrvTime %d sec since 1970 (utc: %d) diff: %d", |
50c2f753 | 475 | (int)ts.tv_sec, (int)utc.tv_sec, |
b6b38f70 | 476 | (int)(utc.tv_sec - ts.tv_sec)); |
b815f1e5 | 477 | val = (int)(utc.tv_sec - ts.tv_sec); |
8594c15a | 478 | seconds = abs(val); |
947a5067 | 479 | result = (seconds / MIN_TZ_ADJ) * MIN_TZ_ADJ; |
b815f1e5 | 480 | remain = seconds % MIN_TZ_ADJ; |
790fe579 | 481 | if (remain >= (MIN_TZ_ADJ / 2)) |
b815f1e5 | 482 | result += MIN_TZ_ADJ; |
790fe579 | 483 | if (val < 0) |
ad7a2926 | 484 | result = -result; |
b815f1e5 | 485 | server->timeAdj = result; |
25ee4a98 | 486 | } else { |
b815f1e5 SF |
487 | server->timeAdj = (int)tmp; |
488 | server->timeAdj *= 60; /* also in seconds */ | |
25ee4a98 | 489 | } |
b6b38f70 | 490 | cFYI(1, "server->timeAdj: %d seconds", server->timeAdj); |
25ee4a98 | 491 | |
3979877e | 492 | |
254e55ed | 493 | /* BB get server time for time conversions and add |
50c2f753 | 494 | code to use it and timezone since this is not UTC */ |
3979877e | 495 | |
50c2f753 | 496 | if (rsp->EncryptionKeyLength == |
25ee4a98 | 497 | cpu_to_le16(CIFS_CRYPTO_KEY_SIZE)) { |
d3ba50b1 | 498 | memcpy(ses->server->cryptkey, rsp->EncryptionKey, |
254e55ed SF |
499 | CIFS_CRYPTO_KEY_SIZE); |
500 | } else if (server->secMode & SECMODE_PW_ENCRYPT) { | |
501 | rc = -EIO; /* need cryptkey unless plain text */ | |
502 | goto neg_err_exit; | |
503 | } | |
3979877e | 504 | |
f19159dc | 505 | cFYI(1, "LANMAN negotiated"); |
254e55ed SF |
506 | /* we will not end up setting signing flags - as no signing |
507 | was in LANMAN and server did not return the flags on */ | |
508 | goto signing_check; | |
7c7b25bc | 509 | #else /* weak security disabled */ |
790fe579 | 510 | } else if (pSMBr->hdr.WordCount == 13) { |
f19159dc SF |
511 | cERROR(1, "mount failed, cifs module not built " |
512 | "with CIFS_WEAK_PW_HASH support"); | |
8212cf75 | 513 | rc = -EOPNOTSUPP; |
7c7b25bc | 514 | #endif /* WEAK_PW_HASH */ |
254e55ed | 515 | goto neg_err_exit; |
790fe579 | 516 | } else if (pSMBr->hdr.WordCount != 17) { |
254e55ed SF |
517 | /* unknown wct */ |
518 | rc = -EOPNOTSUPP; | |
519 | goto neg_err_exit; | |
520 | } | |
521 | /* else wct == 17 NTLM */ | |
522 | server->secMode = pSMBr->SecurityMode; | |
790fe579 | 523 | if ((server->secMode & SECMODE_USER) == 0) |
b6b38f70 | 524 | cFYI(1, "share mode security"); |
bdc4bf6e | 525 | |
790fe579 | 526 | if ((server->secMode & SECMODE_PW_ENCRYPT) == 0) |
bdc4bf6e | 527 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
750d1151 | 528 | if ((secFlags & CIFSSEC_MAY_PLNTXT) == 0) |
bdc4bf6e | 529 | #endif /* CIFS_WEAK_PW_HASH */ |
b6b38f70 JP |
530 | cERROR(1, "Server requests plain text password" |
531 | " but client support disabled"); | |
9312f675 | 532 | |
790fe579 | 533 | if ((secFlags & CIFSSEC_MUST_NTLMV2) == CIFSSEC_MUST_NTLMV2) |
254e55ed | 534 | server->secType = NTLMv2; |
790fe579 | 535 | else if (secFlags & CIFSSEC_MAY_NTLM) |
254e55ed | 536 | server->secType = NTLM; |
790fe579 | 537 | else if (secFlags & CIFSSEC_MAY_NTLMV2) |
f40c5628 | 538 | server->secType = NTLMv2; |
a013689d SF |
539 | else if (secFlags & CIFSSEC_MAY_KRB5) |
540 | server->secType = Kerberos; | |
ac683924 | 541 | else if (secFlags & CIFSSEC_MAY_NTLMSSP) |
f46c7234 | 542 | server->secType = RawNTLMSSP; |
a013689d SF |
543 | else if (secFlags & CIFSSEC_MAY_LANMAN) |
544 | server->secType = LANMAN; | |
545 | /* #ifdef CONFIG_CIFS_EXPERIMENTAL | |
546 | else if (secFlags & CIFSSEC_MAY_PLNTXT) | |
547 | server->secType = ?? | |
548 | #endif */ | |
549 | else { | |
550 | rc = -EOPNOTSUPP; | |
b6b38f70 | 551 | cERROR(1, "Invalid security type"); |
a013689d SF |
552 | goto neg_err_exit; |
553 | } | |
554 | /* else ... any others ...? */ | |
254e55ed SF |
555 | |
556 | /* one byte, so no need to convert this or EncryptionKeyLen from | |
557 | little endian */ | |
558 | server->maxReq = le16_to_cpu(pSMBr->MaxMpxCount); | |
559 | /* probably no need to store and check maxvcs */ | |
560 | server->maxBuf = min(le32_to_cpu(pSMBr->MaxBufferSize), | |
1da177e4 | 561 | (__u32) CIFSMaxBufSize + MAX_CIFS_HDR_SIZE); |
eca6acf9 | 562 | server->max_rw = le32_to_cpu(pSMBr->MaxRawSize); |
b6b38f70 | 563 | cFYI(DBG2, "Max buf = %d", ses->server->maxBuf); |
254e55ed | 564 | server->capabilities = le32_to_cpu(pSMBr->Capabilities); |
b815f1e5 SF |
565 | server->timeAdj = (int)(__s16)le16_to_cpu(pSMBr->ServerTimeZone); |
566 | server->timeAdj *= 60; | |
254e55ed | 567 | if (pSMBr->EncryptionKeyLength == CIFS_CRYPTO_KEY_SIZE) { |
d3ba50b1 | 568 | memcpy(ses->server->cryptkey, pSMBr->u.EncryptionKey, |
254e55ed SF |
569 | CIFS_CRYPTO_KEY_SIZE); |
570 | } else if ((pSMBr->hdr.Flags2 & SMBFLG2_EXT_SEC) | |
571 | && (pSMBr->EncryptionKeyLength == 0)) { | |
572 | /* decode security blob */ | |
573 | } else if (server->secMode & SECMODE_PW_ENCRYPT) { | |
574 | rc = -EIO; /* no crypt key only if plain text pwd */ | |
575 | goto neg_err_exit; | |
576 | } | |
1da177e4 | 577 | |
254e55ed SF |
578 | /* BB might be helpful to save off the domain of server here */ |
579 | ||
50c2f753 | 580 | if ((pSMBr->hdr.Flags2 & SMBFLG2_EXT_SEC) && |
254e55ed SF |
581 | (server->capabilities & CAP_EXTENDED_SECURITY)) { |
582 | count = pSMBr->ByteCount; | |
e187e44e | 583 | if (count < 16) { |
254e55ed | 584 | rc = -EIO; |
e187e44e JL |
585 | goto neg_err_exit; |
586 | } | |
3f9bcca7 | 587 | spin_lock(&cifs_tcp_ses_lock); |
e7ddee90 | 588 | if (server->srv_count > 1) { |
3f9bcca7 | 589 | spin_unlock(&cifs_tcp_ses_lock); |
e187e44e JL |
590 | if (memcmp(server->server_GUID, |
591 | pSMBr->u.extended_response. | |
592 | GUID, 16) != 0) { | |
b6b38f70 | 593 | cFYI(1, "server UID changed"); |
254e55ed | 594 | memcpy(server->server_GUID, |
e187e44e JL |
595 | pSMBr->u.extended_response.GUID, |
596 | 16); | |
597 | } | |
e7ddee90 | 598 | } else { |
3f9bcca7 | 599 | spin_unlock(&cifs_tcp_ses_lock); |
e187e44e JL |
600 | memcpy(server->server_GUID, |
601 | pSMBr->u.extended_response.GUID, 16); | |
e7ddee90 | 602 | } |
e187e44e JL |
603 | |
604 | if (count == 16) { | |
605 | server->secType = RawNTLMSSP; | |
254e55ed SF |
606 | } else { |
607 | rc = decode_negTokenInit(pSMBr->u.extended_response. | |
26efa0ba JL |
608 | SecurityBlob, count - 16, |
609 | server); | |
ef571cad | 610 | if (rc == 1) |
e545937a | 611 | rc = 0; |
ef571cad | 612 | else |
254e55ed | 613 | rc = -EINVAL; |
2b149f11 SP |
614 | if (server->secType == Kerberos) { |
615 | if (!server->sec_kerberos && | |
616 | !server->sec_mskerberos) | |
617 | rc = -EOPNOTSUPP; | |
618 | } else if (server->secType == RawNTLMSSP) { | |
619 | if (!server->sec_ntlmssp) | |
620 | rc = -EOPNOTSUPP; | |
621 | } else | |
622 | rc = -EOPNOTSUPP; | |
1da177e4 | 623 | } |
254e55ed SF |
624 | } else |
625 | server->capabilities &= ~CAP_EXTENDED_SECURITY; | |
626 | ||
6344a423 | 627 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
254e55ed | 628 | signing_check: |
6344a423 | 629 | #endif |
762e5ab7 SF |
630 | if ((secFlags & CIFSSEC_MAY_SIGN) == 0) { |
631 | /* MUST_SIGN already includes the MAY_SIGN FLAG | |
632 | so if this is zero it means that signing is disabled */ | |
b6b38f70 | 633 | cFYI(1, "Signing disabled"); |
abb63d6c | 634 | if (server->secMode & SECMODE_SIGN_REQUIRED) { |
b6b38f70 | 635 | cERROR(1, "Server requires " |
7111d214 | 636 | "packet signing to be enabled in " |
b6b38f70 | 637 | "/proc/fs/cifs/SecurityFlags."); |
abb63d6c SF |
638 | rc = -EOPNOTSUPP; |
639 | } | |
50c2f753 | 640 | server->secMode &= |
254e55ed | 641 | ~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED); |
762e5ab7 SF |
642 | } else if ((secFlags & CIFSSEC_MUST_SIGN) == CIFSSEC_MUST_SIGN) { |
643 | /* signing required */ | |
b6b38f70 | 644 | cFYI(1, "Must sign - secFlags 0x%x", secFlags); |
762e5ab7 SF |
645 | if ((server->secMode & |
646 | (SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED)) == 0) { | |
b6b38f70 | 647 | cERROR(1, "signing required but server lacks support"); |
38c10a1d | 648 | rc = -EOPNOTSUPP; |
762e5ab7 SF |
649 | } else |
650 | server->secMode |= SECMODE_SIGN_REQUIRED; | |
651 | } else { | |
652 | /* signing optional ie CIFSSEC_MAY_SIGN */ | |
790fe579 | 653 | if ((server->secMode & SECMODE_SIGN_REQUIRED) == 0) |
50c2f753 | 654 | server->secMode &= |
254e55ed | 655 | ~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED); |
1da177e4 | 656 | } |
50c2f753 SF |
657 | |
658 | neg_err_exit: | |
4a6d87f1 | 659 | cifs_buf_release(pSMB); |
254e55ed | 660 | |
b6b38f70 | 661 | cFYI(1, "negprot rc %d", rc); |
1da177e4 LT |
662 | return rc; |
663 | } | |
664 | ||
665 | int | |
666 | CIFSSMBTDis(const int xid, struct cifsTconInfo *tcon) | |
667 | { | |
668 | struct smb_hdr *smb_buffer; | |
1da177e4 | 669 | int rc = 0; |
1da177e4 | 670 | |
b6b38f70 | 671 | cFYI(1, "In tree disconnect"); |
1da177e4 | 672 | |
f1987b44 JL |
673 | /* BB: do we need to check this? These should never be NULL. */ |
674 | if ((tcon->ses == NULL) || (tcon->ses->server == NULL)) | |
675 | return -EIO; | |
1da177e4 | 676 | |
f1987b44 JL |
677 | /* |
678 | * No need to return error on this operation if tid invalidated and | |
679 | * closed on server already e.g. due to tcp session crashing. Also, | |
680 | * the tcon is no longer on the list, so no need to take lock before | |
681 | * checking this. | |
682 | */ | |
268875b9 | 683 | if ((tcon->need_reconnect) || (tcon->ses->need_reconnect)) |
50c2f753 | 684 | return 0; |
1da177e4 | 685 | |
50c2f753 | 686 | rc = small_smb_init(SMB_COM_TREE_DISCONNECT, 0, tcon, |
09d1db5c | 687 | (void **)&smb_buffer); |
f1987b44 | 688 | if (rc) |
1da177e4 | 689 | return rc; |
133672ef SF |
690 | |
691 | rc = SendReceiveNoRsp(xid, tcon->ses, smb_buffer, 0); | |
1da177e4 | 692 | if (rc) |
b6b38f70 | 693 | cFYI(1, "Tree disconnect failed %d", rc); |
1da177e4 | 694 | |
50c2f753 | 695 | /* No need to return error on this operation if tid invalidated and |
f1987b44 | 696 | closed on server already e.g. due to tcp session crashing */ |
1da177e4 LT |
697 | if (rc == -EAGAIN) |
698 | rc = 0; | |
699 | ||
700 | return rc; | |
701 | } | |
702 | ||
766fdbb5 JL |
703 | /* |
704 | * This is a no-op for now. We're not really interested in the reply, but | |
705 | * rather in the fact that the server sent one and that server->lstrp | |
706 | * gets updated. | |
707 | * | |
708 | * FIXME: maybe we should consider checking that the reply matches request? | |
709 | */ | |
710 | static void | |
711 | cifs_echo_callback(struct mid_q_entry *mid) | |
712 | { | |
713 | struct TCP_Server_Info *server = mid->callback_data; | |
714 | ||
715 | DeleteMidQEntry(mid); | |
716 | atomic_dec(&server->inFlight); | |
717 | wake_up(&server->request_q); | |
718 | } | |
719 | ||
720 | int | |
721 | CIFSSMBEcho(struct TCP_Server_Info *server) | |
722 | { | |
723 | ECHO_REQ *smb; | |
724 | int rc = 0; | |
725 | ||
726 | cFYI(1, "In echo request"); | |
727 | ||
728 | rc = small_smb_init(SMB_COM_ECHO, 0, NULL, (void **)&smb); | |
729 | if (rc) | |
730 | return rc; | |
731 | ||
732 | /* set up echo request */ | |
733 | smb->hdr.Tid = cpu_to_le16(0xffff); | |
734 | smb->hdr.WordCount = cpu_to_le16(1); | |
735 | smb->EchoCount = cpu_to_le16(1); | |
736 | smb->ByteCount = cpu_to_le16(1); | |
737 | smb->Data[0] = 'a'; | |
738 | smb->hdr.smb_buf_length += 3; | |
739 | ||
740 | rc = cifs_call_async(server, (struct smb_hdr *)smb, | |
741 | cifs_echo_callback, server); | |
742 | if (rc) | |
743 | cFYI(1, "Echo request failed: %d", rc); | |
744 | ||
745 | cifs_small_buf_release(smb); | |
746 | ||
747 | return rc; | |
748 | } | |
749 | ||
1da177e4 LT |
750 | int |
751 | CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses) | |
752 | { | |
1da177e4 LT |
753 | LOGOFF_ANDX_REQ *pSMB; |
754 | int rc = 0; | |
1da177e4 | 755 | |
b6b38f70 | 756 | cFYI(1, "In SMBLogoff for session disconnect"); |
3b795210 | 757 | |
14fbf50d JL |
758 | /* |
759 | * BB: do we need to check validity of ses and server? They should | |
760 | * always be valid since we have an active reference. If not, that | |
761 | * should probably be a BUG() | |
762 | */ | |
763 | if (!ses || !ses->server) | |
3b795210 SF |
764 | return -EIO; |
765 | ||
d7b619cf | 766 | mutex_lock(&ses->session_mutex); |
3b795210 SF |
767 | if (ses->need_reconnect) |
768 | goto session_already_dead; /* no need to send SMBlogoff if uid | |
769 | already closed due to reconnect */ | |
1da177e4 LT |
770 | rc = small_smb_init(SMB_COM_LOGOFF_ANDX, 2, NULL, (void **)&pSMB); |
771 | if (rc) { | |
d7b619cf | 772 | mutex_unlock(&ses->session_mutex); |
1da177e4 LT |
773 | return rc; |
774 | } | |
775 | ||
3b795210 | 776 | pSMB->hdr.Mid = GetNextMid(ses->server); |
1982c344 | 777 | |
3b795210 | 778 | if (ses->server->secMode & |
1da177e4 LT |
779 | (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) |
780 | pSMB->hdr.Flags2 |= SMBFLG2_SECURITY_SIGNATURE; | |
1da177e4 LT |
781 | |
782 | pSMB->hdr.Uid = ses->Suid; | |
783 | ||
784 | pSMB->AndXCommand = 0xFF; | |
133672ef | 785 | rc = SendReceiveNoRsp(xid, ses, (struct smb_hdr *) pSMB, 0); |
3b795210 | 786 | session_already_dead: |
d7b619cf | 787 | mutex_unlock(&ses->session_mutex); |
1da177e4 LT |
788 | |
789 | /* if session dead then we do not need to do ulogoff, | |
50c2f753 | 790 | since server closed smb session, no sense reporting |
1da177e4 LT |
791 | error */ |
792 | if (rc == -EAGAIN) | |
793 | rc = 0; | |
794 | return rc; | |
795 | } | |
796 | ||
2d785a50 SF |
797 | int |
798 | CIFSPOSIXDelFile(const int xid, struct cifsTconInfo *tcon, const char *fileName, | |
799 | __u16 type, const struct nls_table *nls_codepage, int remap) | |
800 | { | |
801 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
802 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
803 | struct unlink_psx_rq *pRqD; | |
804 | int name_len; | |
805 | int rc = 0; | |
806 | int bytes_returned = 0; | |
807 | __u16 params, param_offset, offset, byte_count; | |
808 | ||
b6b38f70 | 809 | cFYI(1, "In POSIX delete"); |
2d785a50 SF |
810 | PsxDelete: |
811 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
812 | (void **) &pSMBr); | |
813 | if (rc) | |
814 | return rc; | |
815 | ||
816 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
817 | name_len = | |
818 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, | |
819 | PATH_MAX, nls_codepage, remap); | |
820 | name_len++; /* trailing null */ | |
821 | name_len *= 2; | |
822 | } else { /* BB add path length overrun check */ | |
823 | name_len = strnlen(fileName, PATH_MAX); | |
824 | name_len++; /* trailing null */ | |
825 | strncpy(pSMB->FileName, fileName, name_len); | |
826 | } | |
827 | ||
828 | params = 6 + name_len; | |
829 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
830 | pSMB->MaxDataCount = 0; /* BB double check this with jra */ | |
831 | pSMB->MaxSetupCount = 0; | |
832 | pSMB->Reserved = 0; | |
833 | pSMB->Flags = 0; | |
834 | pSMB->Timeout = 0; | |
835 | pSMB->Reserved2 = 0; | |
836 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
837 | InformationLevel) - 4; | |
838 | offset = param_offset + params; | |
839 | ||
840 | /* Setup pointer to Request Data (inode type) */ | |
841 | pRqD = (struct unlink_psx_rq *)(((char *)&pSMB->hdr.Protocol) + offset); | |
842 | pRqD->type = cpu_to_le16(type); | |
843 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
844 | pSMB->DataOffset = cpu_to_le16(offset); | |
845 | pSMB->SetupCount = 1; | |
846 | pSMB->Reserved3 = 0; | |
847 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
848 | byte_count = 3 /* pad */ + params + sizeof(struct unlink_psx_rq); | |
849 | ||
850 | pSMB->DataCount = cpu_to_le16(sizeof(struct unlink_psx_rq)); | |
851 | pSMB->TotalDataCount = cpu_to_le16(sizeof(struct unlink_psx_rq)); | |
852 | pSMB->ParameterCount = cpu_to_le16(params); | |
853 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
854 | pSMB->InformationLevel = cpu_to_le16(SMB_POSIX_UNLINK); | |
855 | pSMB->Reserved4 = 0; | |
856 | pSMB->hdr.smb_buf_length += byte_count; | |
857 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
858 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
859 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
ad7a2926 | 860 | if (rc) |
b6b38f70 | 861 | cFYI(1, "Posix delete returned %d", rc); |
2d785a50 SF |
862 | cifs_buf_release(pSMB); |
863 | ||
864 | cifs_stats_inc(&tcon->num_deletes); | |
865 | ||
866 | if (rc == -EAGAIN) | |
867 | goto PsxDelete; | |
868 | ||
869 | return rc; | |
870 | } | |
871 | ||
1da177e4 | 872 | int |
737b758c SF |
873 | CIFSSMBDelFile(const int xid, struct cifsTconInfo *tcon, const char *fileName, |
874 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
875 | { |
876 | DELETE_FILE_REQ *pSMB = NULL; | |
877 | DELETE_FILE_RSP *pSMBr = NULL; | |
878 | int rc = 0; | |
879 | int bytes_returned; | |
880 | int name_len; | |
881 | ||
882 | DelFileRetry: | |
883 | rc = smb_init(SMB_COM_DELETE, 1, tcon, (void **) &pSMB, | |
884 | (void **) &pSMBr); | |
885 | if (rc) | |
886 | return rc; | |
887 | ||
888 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
889 | name_len = | |
50c2f753 | 890 | cifsConvertToUCS((__le16 *) pSMB->fileName, fileName, |
737b758c | 891 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
892 | name_len++; /* trailing null */ |
893 | name_len *= 2; | |
09d1db5c | 894 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
895 | name_len = strnlen(fileName, PATH_MAX); |
896 | name_len++; /* trailing null */ | |
897 | strncpy(pSMB->fileName, fileName, name_len); | |
898 | } | |
899 | pSMB->SearchAttributes = | |
900 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM); | |
901 | pSMB->BufferFormat = 0x04; | |
902 | pSMB->hdr.smb_buf_length += name_len + 1; | |
903 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
904 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
905 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 906 | cifs_stats_inc(&tcon->num_deletes); |
ad7a2926 | 907 | if (rc) |
b6b38f70 | 908 | cFYI(1, "Error in RMFile = %d", rc); |
1da177e4 LT |
909 | |
910 | cifs_buf_release(pSMB); | |
911 | if (rc == -EAGAIN) | |
912 | goto DelFileRetry; | |
913 | ||
914 | return rc; | |
915 | } | |
916 | ||
917 | int | |
50c2f753 | 918 | CIFSSMBRmDir(const int xid, struct cifsTconInfo *tcon, const char *dirName, |
737b758c | 919 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
920 | { |
921 | DELETE_DIRECTORY_REQ *pSMB = NULL; | |
922 | DELETE_DIRECTORY_RSP *pSMBr = NULL; | |
923 | int rc = 0; | |
924 | int bytes_returned; | |
925 | int name_len; | |
926 | ||
b6b38f70 | 927 | cFYI(1, "In CIFSSMBRmDir"); |
1da177e4 LT |
928 | RmDirRetry: |
929 | rc = smb_init(SMB_COM_DELETE_DIRECTORY, 0, tcon, (void **) &pSMB, | |
930 | (void **) &pSMBr); | |
931 | if (rc) | |
932 | return rc; | |
933 | ||
934 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
737b758c SF |
935 | name_len = cifsConvertToUCS((__le16 *) pSMB->DirName, dirName, |
936 | PATH_MAX, nls_codepage, remap); | |
1da177e4 LT |
937 | name_len++; /* trailing null */ |
938 | name_len *= 2; | |
09d1db5c | 939 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
940 | name_len = strnlen(dirName, PATH_MAX); |
941 | name_len++; /* trailing null */ | |
942 | strncpy(pSMB->DirName, dirName, name_len); | |
943 | } | |
944 | ||
945 | pSMB->BufferFormat = 0x04; | |
946 | pSMB->hdr.smb_buf_length += name_len + 1; | |
947 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
948 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
949 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 950 | cifs_stats_inc(&tcon->num_rmdirs); |
ad7a2926 | 951 | if (rc) |
b6b38f70 | 952 | cFYI(1, "Error in RMDir = %d", rc); |
1da177e4 LT |
953 | |
954 | cifs_buf_release(pSMB); | |
955 | if (rc == -EAGAIN) | |
956 | goto RmDirRetry; | |
957 | return rc; | |
958 | } | |
959 | ||
960 | int | |
961 | CIFSSMBMkDir(const int xid, struct cifsTconInfo *tcon, | |
737b758c | 962 | const char *name, const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
963 | { |
964 | int rc = 0; | |
965 | CREATE_DIRECTORY_REQ *pSMB = NULL; | |
966 | CREATE_DIRECTORY_RSP *pSMBr = NULL; | |
967 | int bytes_returned; | |
968 | int name_len; | |
969 | ||
b6b38f70 | 970 | cFYI(1, "In CIFSSMBMkDir"); |
1da177e4 LT |
971 | MkDirRetry: |
972 | rc = smb_init(SMB_COM_CREATE_DIRECTORY, 0, tcon, (void **) &pSMB, | |
973 | (void **) &pSMBr); | |
974 | if (rc) | |
975 | return rc; | |
976 | ||
977 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
50c2f753 | 978 | name_len = cifsConvertToUCS((__le16 *) pSMB->DirName, name, |
737b758c | 979 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
980 | name_len++; /* trailing null */ |
981 | name_len *= 2; | |
09d1db5c | 982 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
983 | name_len = strnlen(name, PATH_MAX); |
984 | name_len++; /* trailing null */ | |
985 | strncpy(pSMB->DirName, name, name_len); | |
986 | } | |
987 | ||
988 | pSMB->BufferFormat = 0x04; | |
989 | pSMB->hdr.smb_buf_length += name_len + 1; | |
990 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
991 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
992 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 993 | cifs_stats_inc(&tcon->num_mkdirs); |
ad7a2926 | 994 | if (rc) |
b6b38f70 | 995 | cFYI(1, "Error in Mkdir = %d", rc); |
a5a2b489 | 996 | |
1da177e4 LT |
997 | cifs_buf_release(pSMB); |
998 | if (rc == -EAGAIN) | |
999 | goto MkDirRetry; | |
1000 | return rc; | |
1001 | } | |
1002 | ||
2dd29d31 SF |
1003 | int |
1004 | CIFSPOSIXCreate(const int xid, struct cifsTconInfo *tcon, __u32 posix_flags, | |
ad7a2926 | 1005 | __u64 mode, __u16 *netfid, FILE_UNIX_BASIC_INFO *pRetData, |
50c2f753 | 1006 | __u32 *pOplock, const char *name, |
2dd29d31 SF |
1007 | const struct nls_table *nls_codepage, int remap) |
1008 | { | |
1009 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
1010 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
1011 | int name_len; | |
1012 | int rc = 0; | |
1013 | int bytes_returned = 0; | |
2dd29d31 | 1014 | __u16 params, param_offset, offset, byte_count, count; |
ad7a2926 SF |
1015 | OPEN_PSX_REQ *pdata; |
1016 | OPEN_PSX_RSP *psx_rsp; | |
2dd29d31 | 1017 | |
b6b38f70 | 1018 | cFYI(1, "In POSIX Create"); |
2dd29d31 SF |
1019 | PsxCreat: |
1020 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
1021 | (void **) &pSMBr); | |
1022 | if (rc) | |
1023 | return rc; | |
1024 | ||
1025 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1026 | name_len = | |
1027 | cifsConvertToUCS((__le16 *) pSMB->FileName, name, | |
1028 | PATH_MAX, nls_codepage, remap); | |
1029 | name_len++; /* trailing null */ | |
1030 | name_len *= 2; | |
1031 | } else { /* BB improve the check for buffer overruns BB */ | |
1032 | name_len = strnlen(name, PATH_MAX); | |
1033 | name_len++; /* trailing null */ | |
1034 | strncpy(pSMB->FileName, name, name_len); | |
1035 | } | |
1036 | ||
1037 | params = 6 + name_len; | |
1038 | count = sizeof(OPEN_PSX_REQ); | |
1039 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
1040 | pSMB->MaxDataCount = cpu_to_le16(1000); /* large enough */ | |
1041 | pSMB->MaxSetupCount = 0; | |
1042 | pSMB->Reserved = 0; | |
1043 | pSMB->Flags = 0; | |
1044 | pSMB->Timeout = 0; | |
1045 | pSMB->Reserved2 = 0; | |
1046 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 1047 | InformationLevel) - 4; |
2dd29d31 | 1048 | offset = param_offset + params; |
2dd29d31 | 1049 | pdata = (OPEN_PSX_REQ *)(((char *)&pSMB->hdr.Protocol) + offset); |
8f2376ad | 1050 | pdata->Level = cpu_to_le16(SMB_QUERY_FILE_UNIX_BASIC); |
2dd29d31 | 1051 | pdata->Permissions = cpu_to_le64(mode); |
50c2f753 | 1052 | pdata->PosixOpenFlags = cpu_to_le32(posix_flags); |
2dd29d31 SF |
1053 | pdata->OpenFlags = cpu_to_le32(*pOplock); |
1054 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
1055 | pSMB->DataOffset = cpu_to_le16(offset); | |
1056 | pSMB->SetupCount = 1; | |
1057 | pSMB->Reserved3 = 0; | |
1058 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
1059 | byte_count = 3 /* pad */ + params + count; | |
1060 | ||
1061 | pSMB->DataCount = cpu_to_le16(count); | |
1062 | pSMB->ParameterCount = cpu_to_le16(params); | |
1063 | pSMB->TotalDataCount = pSMB->DataCount; | |
1064 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
1065 | pSMB->InformationLevel = cpu_to_le16(SMB_POSIX_OPEN); | |
1066 | pSMB->Reserved4 = 0; | |
50c2f753 | 1067 | pSMB->hdr.smb_buf_length += byte_count; |
2dd29d31 SF |
1068 | pSMB->ByteCount = cpu_to_le16(byte_count); |
1069 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1070 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
1071 | if (rc) { | |
b6b38f70 | 1072 | cFYI(1, "Posix create returned %d", rc); |
2dd29d31 SF |
1073 | goto psx_create_err; |
1074 | } | |
1075 | ||
b6b38f70 | 1076 | cFYI(1, "copying inode info"); |
2dd29d31 SF |
1077 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
1078 | ||
1079 | if (rc || (pSMBr->ByteCount < sizeof(OPEN_PSX_RSP))) { | |
1080 | rc = -EIO; /* bad smb */ | |
1081 | goto psx_create_err; | |
1082 | } | |
1083 | ||
1084 | /* copy return information to pRetData */ | |
50c2f753 | 1085 | psx_rsp = (OPEN_PSX_RSP *)((char *) &pSMBr->hdr.Protocol |
2dd29d31 | 1086 | + le16_to_cpu(pSMBr->t2.DataOffset)); |
50c2f753 | 1087 | |
2dd29d31 | 1088 | *pOplock = le16_to_cpu(psx_rsp->OplockFlags); |
790fe579 | 1089 | if (netfid) |
2dd29d31 SF |
1090 | *netfid = psx_rsp->Fid; /* cifs fid stays in le */ |
1091 | /* Let caller know file was created so we can set the mode. */ | |
1092 | /* Do we care about the CreateAction in any other cases? */ | |
790fe579 | 1093 | if (cpu_to_le32(FILE_CREATE) == psx_rsp->CreateAction) |
2dd29d31 SF |
1094 | *pOplock |= CIFS_CREATE_ACTION; |
1095 | /* check to make sure response data is there */ | |
8f2376ad CG |
1096 | if (psx_rsp->ReturnedLevel != cpu_to_le16(SMB_QUERY_FILE_UNIX_BASIC)) { |
1097 | pRetData->Type = cpu_to_le32(-1); /* unknown */ | |
b6b38f70 | 1098 | cFYI(DBG2, "unknown type"); |
cbac3cba | 1099 | } else { |
790fe579 | 1100 | if (pSMBr->ByteCount < sizeof(OPEN_PSX_RSP) |
2dd29d31 | 1101 | + sizeof(FILE_UNIX_BASIC_INFO)) { |
b6b38f70 | 1102 | cERROR(1, "Open response data too small"); |
8f2376ad | 1103 | pRetData->Type = cpu_to_le32(-1); |
2dd29d31 SF |
1104 | goto psx_create_err; |
1105 | } | |
50c2f753 | 1106 | memcpy((char *) pRetData, |
cbac3cba | 1107 | (char *)psx_rsp + sizeof(OPEN_PSX_RSP), |
26f57364 | 1108 | sizeof(FILE_UNIX_BASIC_INFO)); |
2dd29d31 | 1109 | } |
2dd29d31 SF |
1110 | |
1111 | psx_create_err: | |
1112 | cifs_buf_release(pSMB); | |
1113 | ||
65bc98b0 SF |
1114 | if (posix_flags & SMB_O_DIRECTORY) |
1115 | cifs_stats_inc(&tcon->num_posixmkdirs); | |
1116 | else | |
1117 | cifs_stats_inc(&tcon->num_posixopens); | |
2dd29d31 SF |
1118 | |
1119 | if (rc == -EAGAIN) | |
1120 | goto PsxCreat; | |
1121 | ||
50c2f753 | 1122 | return rc; |
2dd29d31 SF |
1123 | } |
1124 | ||
a9d02ad4 SF |
1125 | static __u16 convert_disposition(int disposition) |
1126 | { | |
1127 | __u16 ofun = 0; | |
1128 | ||
1129 | switch (disposition) { | |
1130 | case FILE_SUPERSEDE: | |
1131 | ofun = SMBOPEN_OCREATE | SMBOPEN_OTRUNC; | |
1132 | break; | |
1133 | case FILE_OPEN: | |
1134 | ofun = SMBOPEN_OAPPEND; | |
1135 | break; | |
1136 | case FILE_CREATE: | |
1137 | ofun = SMBOPEN_OCREATE; | |
1138 | break; | |
1139 | case FILE_OPEN_IF: | |
1140 | ofun = SMBOPEN_OCREATE | SMBOPEN_OAPPEND; | |
1141 | break; | |
1142 | case FILE_OVERWRITE: | |
1143 | ofun = SMBOPEN_OTRUNC; | |
1144 | break; | |
1145 | case FILE_OVERWRITE_IF: | |
1146 | ofun = SMBOPEN_OCREATE | SMBOPEN_OTRUNC; | |
1147 | break; | |
1148 | default: | |
b6b38f70 | 1149 | cFYI(1, "unknown disposition %d", disposition); |
a9d02ad4 SF |
1150 | ofun = SMBOPEN_OAPPEND; /* regular open */ |
1151 | } | |
1152 | return ofun; | |
1153 | } | |
1154 | ||
35fc37d5 JL |
1155 | static int |
1156 | access_flags_to_smbopen_mode(const int access_flags) | |
1157 | { | |
1158 | int masked_flags = access_flags & (GENERIC_READ | GENERIC_WRITE); | |
1159 | ||
1160 | if (masked_flags == GENERIC_READ) | |
1161 | return SMBOPEN_READ; | |
1162 | else if (masked_flags == GENERIC_WRITE) | |
1163 | return SMBOPEN_WRITE; | |
1164 | ||
1165 | /* just go for read/write */ | |
1166 | return SMBOPEN_READWRITE; | |
1167 | } | |
1168 | ||
a9d02ad4 SF |
1169 | int |
1170 | SMBLegacyOpen(const int xid, struct cifsTconInfo *tcon, | |
1171 | const char *fileName, const int openDisposition, | |
ad7a2926 SF |
1172 | const int access_flags, const int create_options, __u16 *netfid, |
1173 | int *pOplock, FILE_ALL_INFO *pfile_info, | |
a9d02ad4 SF |
1174 | const struct nls_table *nls_codepage, int remap) |
1175 | { | |
1176 | int rc = -EACCES; | |
1177 | OPENX_REQ *pSMB = NULL; | |
1178 | OPENX_RSP *pSMBr = NULL; | |
1179 | int bytes_returned; | |
1180 | int name_len; | |
1181 | __u16 count; | |
1182 | ||
1183 | OldOpenRetry: | |
1184 | rc = smb_init(SMB_COM_OPEN_ANDX, 15, tcon, (void **) &pSMB, | |
1185 | (void **) &pSMBr); | |
1186 | if (rc) | |
1187 | return rc; | |
1188 | ||
1189 | pSMB->AndXCommand = 0xFF; /* none */ | |
1190 | ||
1191 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1192 | count = 1; /* account for one byte pad to word boundary */ | |
1193 | name_len = | |
1194 | cifsConvertToUCS((__le16 *) (pSMB->fileName + 1), | |
1195 | fileName, PATH_MAX, nls_codepage, remap); | |
1196 | name_len++; /* trailing null */ | |
1197 | name_len *= 2; | |
1198 | } else { /* BB improve check for buffer overruns BB */ | |
1199 | count = 0; /* no pad */ | |
1200 | name_len = strnlen(fileName, PATH_MAX); | |
1201 | name_len++; /* trailing null */ | |
1202 | strncpy(pSMB->fileName, fileName, name_len); | |
1203 | } | |
1204 | if (*pOplock & REQ_OPLOCK) | |
1205 | pSMB->OpenFlags = cpu_to_le16(REQ_OPLOCK); | |
26f57364 | 1206 | else if (*pOplock & REQ_BATCHOPLOCK) |
a9d02ad4 | 1207 | pSMB->OpenFlags = cpu_to_le16(REQ_BATCHOPLOCK); |
26f57364 | 1208 | |
a9d02ad4 | 1209 | pSMB->OpenFlags |= cpu_to_le16(REQ_MORE_INFO); |
35fc37d5 | 1210 | pSMB->Mode = cpu_to_le16(access_flags_to_smbopen_mode(access_flags)); |
a9d02ad4 SF |
1211 | pSMB->Mode |= cpu_to_le16(0x40); /* deny none */ |
1212 | /* set file as system file if special file such | |
1213 | as fifo and server expecting SFU style and | |
1214 | no Unix extensions */ | |
1215 | ||
790fe579 SF |
1216 | if (create_options & CREATE_OPTION_SPECIAL) |
1217 | pSMB->FileAttributes = cpu_to_le16(ATTR_SYSTEM); | |
ad7a2926 SF |
1218 | else /* BB FIXME BB */ |
1219 | pSMB->FileAttributes = cpu_to_le16(0/*ATTR_NORMAL*/); | |
a9d02ad4 | 1220 | |
67750fb9 JL |
1221 | if (create_options & CREATE_OPTION_READONLY) |
1222 | pSMB->FileAttributes |= cpu_to_le16(ATTR_READONLY); | |
a9d02ad4 SF |
1223 | |
1224 | /* BB FIXME BB */ | |
50c2f753 SF |
1225 | /* pSMB->CreateOptions = cpu_to_le32(create_options & |
1226 | CREATE_OPTIONS_MASK); */ | |
a9d02ad4 | 1227 | /* BB FIXME END BB */ |
3e87d803 SF |
1228 | |
1229 | pSMB->Sattr = cpu_to_le16(ATTR_HIDDEN | ATTR_SYSTEM | ATTR_DIRECTORY); | |
70ca734a | 1230 | pSMB->OpenFunction = cpu_to_le16(convert_disposition(openDisposition)); |
a9d02ad4 SF |
1231 | count += name_len; |
1232 | pSMB->hdr.smb_buf_length += count; | |
1233 | ||
1234 | pSMB->ByteCount = cpu_to_le16(count); | |
1235 | /* long_op set to 1 to allow for oplock break timeouts */ | |
1236 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
7749981e | 1237 | (struct smb_hdr *)pSMBr, &bytes_returned, 0); |
a9d02ad4 SF |
1238 | cifs_stats_inc(&tcon->num_opens); |
1239 | if (rc) { | |
b6b38f70 | 1240 | cFYI(1, "Error in Open = %d", rc); |
a9d02ad4 SF |
1241 | } else { |
1242 | /* BB verify if wct == 15 */ | |
1243 | ||
582d21e5 | 1244 | /* *pOplock = pSMBr->OplockLevel; */ /* BB take from action field*/ |
a9d02ad4 SF |
1245 | |
1246 | *netfid = pSMBr->Fid; /* cifs fid stays in le */ | |
1247 | /* Let caller know file was created so we can set the mode. */ | |
1248 | /* Do we care about the CreateAction in any other cases? */ | |
1249 | /* BB FIXME BB */ | |
790fe579 | 1250 | /* if (cpu_to_le32(FILE_CREATE) == pSMBr->CreateAction) |
a9d02ad4 SF |
1251 | *pOplock |= CIFS_CREATE_ACTION; */ |
1252 | /* BB FIXME END */ | |
1253 | ||
790fe579 | 1254 | if (pfile_info) { |
a9d02ad4 SF |
1255 | pfile_info->CreationTime = 0; /* BB convert CreateTime*/ |
1256 | pfile_info->LastAccessTime = 0; /* BB fixme */ | |
1257 | pfile_info->LastWriteTime = 0; /* BB fixme */ | |
1258 | pfile_info->ChangeTime = 0; /* BB fixme */ | |
70ca734a | 1259 | pfile_info->Attributes = |
50c2f753 | 1260 | cpu_to_le32(le16_to_cpu(pSMBr->FileAttributes)); |
a9d02ad4 | 1261 | /* the file_info buf is endian converted by caller */ |
70ca734a SF |
1262 | pfile_info->AllocationSize = |
1263 | cpu_to_le64(le32_to_cpu(pSMBr->EndOfFile)); | |
1264 | pfile_info->EndOfFile = pfile_info->AllocationSize; | |
a9d02ad4 | 1265 | pfile_info->NumberOfLinks = cpu_to_le32(1); |
9a8165fc | 1266 | pfile_info->DeletePending = 0; |
a9d02ad4 SF |
1267 | } |
1268 | } | |
1269 | ||
1270 | cifs_buf_release(pSMB); | |
1271 | if (rc == -EAGAIN) | |
1272 | goto OldOpenRetry; | |
1273 | return rc; | |
1274 | } | |
1275 | ||
1da177e4 LT |
1276 | int |
1277 | CIFSSMBOpen(const int xid, struct cifsTconInfo *tcon, | |
1278 | const char *fileName, const int openDisposition, | |
ad7a2926 SF |
1279 | const int access_flags, const int create_options, __u16 *netfid, |
1280 | int *pOplock, FILE_ALL_INFO *pfile_info, | |
737b758c | 1281 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
1282 | { |
1283 | int rc = -EACCES; | |
1284 | OPEN_REQ *pSMB = NULL; | |
1285 | OPEN_RSP *pSMBr = NULL; | |
1286 | int bytes_returned; | |
1287 | int name_len; | |
1288 | __u16 count; | |
1289 | ||
1290 | openRetry: | |
1291 | rc = smb_init(SMB_COM_NT_CREATE_ANDX, 24, tcon, (void **) &pSMB, | |
1292 | (void **) &pSMBr); | |
1293 | if (rc) | |
1294 | return rc; | |
1295 | ||
1296 | pSMB->AndXCommand = 0xFF; /* none */ | |
1297 | ||
1298 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1299 | count = 1; /* account for one byte pad to word boundary */ | |
1300 | name_len = | |
b1a45695 | 1301 | cifsConvertToUCS((__le16 *) (pSMB->fileName + 1), |
737b758c | 1302 | fileName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1303 | name_len++; /* trailing null */ |
1304 | name_len *= 2; | |
1305 | pSMB->NameLength = cpu_to_le16(name_len); | |
09d1db5c | 1306 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
1307 | count = 0; /* no pad */ |
1308 | name_len = strnlen(fileName, PATH_MAX); | |
1309 | name_len++; /* trailing null */ | |
1310 | pSMB->NameLength = cpu_to_le16(name_len); | |
1311 | strncpy(pSMB->fileName, fileName, name_len); | |
1312 | } | |
1313 | if (*pOplock & REQ_OPLOCK) | |
1314 | pSMB->OpenFlags = cpu_to_le32(REQ_OPLOCK); | |
26f57364 | 1315 | else if (*pOplock & REQ_BATCHOPLOCK) |
1da177e4 | 1316 | pSMB->OpenFlags = cpu_to_le32(REQ_BATCHOPLOCK); |
1da177e4 LT |
1317 | pSMB->DesiredAccess = cpu_to_le32(access_flags); |
1318 | pSMB->AllocationSize = 0; | |
eda3c029 SF |
1319 | /* set file as system file if special file such |
1320 | as fifo and server expecting SFU style and | |
1321 | no Unix extensions */ | |
790fe579 | 1322 | if (create_options & CREATE_OPTION_SPECIAL) |
eda3c029 SF |
1323 | pSMB->FileAttributes = cpu_to_le32(ATTR_SYSTEM); |
1324 | else | |
1325 | pSMB->FileAttributes = cpu_to_le32(ATTR_NORMAL); | |
67750fb9 | 1326 | |
1da177e4 LT |
1327 | /* XP does not handle ATTR_POSIX_SEMANTICS */ |
1328 | /* but it helps speed up case sensitive checks for other | |
1329 | servers such as Samba */ | |
1330 | if (tcon->ses->capabilities & CAP_UNIX) | |
1331 | pSMB->FileAttributes |= cpu_to_le32(ATTR_POSIX_SEMANTICS); | |
1332 | ||
67750fb9 JL |
1333 | if (create_options & CREATE_OPTION_READONLY) |
1334 | pSMB->FileAttributes |= cpu_to_le32(ATTR_READONLY); | |
1335 | ||
1da177e4 LT |
1336 | pSMB->ShareAccess = cpu_to_le32(FILE_SHARE_ALL); |
1337 | pSMB->CreateDisposition = cpu_to_le32(openDisposition); | |
eda3c029 | 1338 | pSMB->CreateOptions = cpu_to_le32(create_options & CREATE_OPTIONS_MASK); |
09d1db5c SF |
1339 | /* BB Expirement with various impersonation levels and verify */ |
1340 | pSMB->ImpersonationLevel = cpu_to_le32(SECURITY_IMPERSONATION); | |
1da177e4 LT |
1341 | pSMB->SecurityFlags = |
1342 | SECURITY_CONTEXT_TRACKING | SECURITY_EFFECTIVE_ONLY; | |
1343 | ||
1344 | count += name_len; | |
1345 | pSMB->hdr.smb_buf_length += count; | |
1346 | ||
1347 | pSMB->ByteCount = cpu_to_le16(count); | |
1348 | /* long_op set to 1 to allow for oplock break timeouts */ | |
1349 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
7749981e | 1350 | (struct smb_hdr *)pSMBr, &bytes_returned, 0); |
a4544347 | 1351 | cifs_stats_inc(&tcon->num_opens); |
1da177e4 | 1352 | if (rc) { |
b6b38f70 | 1353 | cFYI(1, "Error in Open = %d", rc); |
1da177e4 | 1354 | } else { |
09d1db5c | 1355 | *pOplock = pSMBr->OplockLevel; /* 1 byte no need to le_to_cpu */ |
1da177e4 LT |
1356 | *netfid = pSMBr->Fid; /* cifs fid stays in le */ |
1357 | /* Let caller know file was created so we can set the mode. */ | |
1358 | /* Do we care about the CreateAction in any other cases? */ | |
790fe579 | 1359 | if (cpu_to_le32(FILE_CREATE) == pSMBr->CreateAction) |
50c2f753 | 1360 | *pOplock |= CIFS_CREATE_ACTION; |
790fe579 | 1361 | if (pfile_info) { |
61e74801 SF |
1362 | memcpy((char *)pfile_info, (char *)&pSMBr->CreationTime, |
1363 | 36 /* CreationTime to Attributes */); | |
1364 | /* the file_info buf is endian converted by caller */ | |
1365 | pfile_info->AllocationSize = pSMBr->AllocationSize; | |
1366 | pfile_info->EndOfFile = pSMBr->EndOfFile; | |
1367 | pfile_info->NumberOfLinks = cpu_to_le32(1); | |
1368 | pfile_info->DeletePending = 0; | |
1da177e4 | 1369 | } |
1da177e4 | 1370 | } |
a5a2b489 | 1371 | |
1da177e4 LT |
1372 | cifs_buf_release(pSMB); |
1373 | if (rc == -EAGAIN) | |
1374 | goto openRetry; | |
1375 | return rc; | |
1376 | } | |
1377 | ||
1da177e4 | 1378 | int |
50c2f753 SF |
1379 | CIFSSMBRead(const int xid, struct cifsTconInfo *tcon, const int netfid, |
1380 | const unsigned int count, const __u64 lseek, unsigned int *nbytes, | |
1381 | char **buf, int *pbuf_type) | |
1da177e4 LT |
1382 | { |
1383 | int rc = -EACCES; | |
1384 | READ_REQ *pSMB = NULL; | |
1385 | READ_RSP *pSMBr = NULL; | |
1386 | char *pReadData = NULL; | |
bfa0d75a | 1387 | int wct; |
ec637e3f SF |
1388 | int resp_buf_type = 0; |
1389 | struct kvec iov[1]; | |
1da177e4 | 1390 | |
b6b38f70 | 1391 | cFYI(1, "Reading %d bytes on fid %d", count, netfid); |
790fe579 | 1392 | if (tcon->ses->capabilities & CAP_LARGE_FILES) |
bfa0d75a | 1393 | wct = 12; |
4c3130ef | 1394 | else { |
bfa0d75a | 1395 | wct = 10; /* old style read */ |
4c3130ef SF |
1396 | if ((lseek >> 32) > 0) { |
1397 | /* can not handle this big offset for old */ | |
1398 | return -EIO; | |
1399 | } | |
1400 | } | |
1da177e4 LT |
1401 | |
1402 | *nbytes = 0; | |
ec637e3f | 1403 | rc = small_smb_init(SMB_COM_READ_ANDX, wct, tcon, (void **) &pSMB); |
1da177e4 LT |
1404 | if (rc) |
1405 | return rc; | |
1406 | ||
1407 | /* tcon and ses pointer are checked in smb_init */ | |
1408 | if (tcon->ses->server == NULL) | |
1409 | return -ECONNABORTED; | |
1410 | ||
ec637e3f | 1411 | pSMB->AndXCommand = 0xFF; /* none */ |
1da177e4 LT |
1412 | pSMB->Fid = netfid; |
1413 | pSMB->OffsetLow = cpu_to_le32(lseek & 0xFFFFFFFF); | |
790fe579 | 1414 | if (wct == 12) |
bfa0d75a | 1415 | pSMB->OffsetHigh = cpu_to_le32(lseek >> 32); |
bfa0d75a | 1416 | |
1da177e4 LT |
1417 | pSMB->Remaining = 0; |
1418 | pSMB->MaxCount = cpu_to_le16(count & 0xFFFF); | |
1419 | pSMB->MaxCountHigh = cpu_to_le32(count >> 16); | |
790fe579 | 1420 | if (wct == 12) |
bfa0d75a SF |
1421 | pSMB->ByteCount = 0; /* no need to do le conversion since 0 */ |
1422 | else { | |
1423 | /* old style read */ | |
50c2f753 | 1424 | struct smb_com_readx_req *pSMBW = |
bfa0d75a | 1425 | (struct smb_com_readx_req *)pSMB; |
ec637e3f | 1426 | pSMBW->ByteCount = 0; |
bfa0d75a | 1427 | } |
ec637e3f SF |
1428 | |
1429 | iov[0].iov_base = (char *)pSMB; | |
1430 | iov[0].iov_len = pSMB->hdr.smb_buf_length + 4; | |
a761ac57 | 1431 | rc = SendReceive2(xid, tcon->ses, iov, 1 /* num iovecs */, |
7749981e | 1432 | &resp_buf_type, CIFS_LOG_ERROR); |
a4544347 | 1433 | cifs_stats_inc(&tcon->num_reads); |
ec637e3f | 1434 | pSMBr = (READ_RSP *)iov[0].iov_base; |
1da177e4 | 1435 | if (rc) { |
b6b38f70 | 1436 | cERROR(1, "Send error in read = %d", rc); |
1da177e4 LT |
1437 | } else { |
1438 | int data_length = le16_to_cpu(pSMBr->DataLengthHigh); | |
1439 | data_length = data_length << 16; | |
1440 | data_length += le16_to_cpu(pSMBr->DataLength); | |
1441 | *nbytes = data_length; | |
1442 | ||
1443 | /*check that DataLength would not go beyond end of SMB */ | |
ec637e3f | 1444 | if ((data_length > CIFSMaxBufSize) |
1da177e4 | 1445 | || (data_length > count)) { |
b6b38f70 JP |
1446 | cFYI(1, "bad length %d for count %d", |
1447 | data_length, count); | |
1da177e4 LT |
1448 | rc = -EIO; |
1449 | *nbytes = 0; | |
1450 | } else { | |
ec637e3f | 1451 | pReadData = (char *) (&pSMBr->hdr.Protocol) + |
26f57364 SF |
1452 | le16_to_cpu(pSMBr->DataOffset); |
1453 | /* if (rc = copy_to_user(buf, pReadData, data_length)) { | |
b6b38f70 | 1454 | cERROR(1, "Faulting on read rc = %d",rc); |
50c2f753 | 1455 | rc = -EFAULT; |
26f57364 | 1456 | }*/ /* can not use copy_to_user when using page cache*/ |
790fe579 | 1457 | if (*buf) |
50c2f753 | 1458 | memcpy(*buf, pReadData, data_length); |
1da177e4 LT |
1459 | } |
1460 | } | |
1da177e4 | 1461 | |
4b8f930f | 1462 | /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */ |
790fe579 SF |
1463 | if (*buf) { |
1464 | if (resp_buf_type == CIFS_SMALL_BUFFER) | |
ec637e3f | 1465 | cifs_small_buf_release(iov[0].iov_base); |
790fe579 | 1466 | else if (resp_buf_type == CIFS_LARGE_BUFFER) |
ec637e3f | 1467 | cifs_buf_release(iov[0].iov_base); |
790fe579 | 1468 | } else if (resp_buf_type != CIFS_NO_BUFFER) { |
50c2f753 SF |
1469 | /* return buffer to caller to free */ |
1470 | *buf = iov[0].iov_base; | |
790fe579 | 1471 | if (resp_buf_type == CIFS_SMALL_BUFFER) |
ec637e3f | 1472 | *pbuf_type = CIFS_SMALL_BUFFER; |
790fe579 | 1473 | else if (resp_buf_type == CIFS_LARGE_BUFFER) |
ec637e3f | 1474 | *pbuf_type = CIFS_LARGE_BUFFER; |
6cec2aed | 1475 | } /* else no valid buffer on return - leave as null */ |
ec637e3f SF |
1476 | |
1477 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
1da177e4 LT |
1478 | since file handle passed in no longer valid */ |
1479 | return rc; | |
1480 | } | |
1481 | ||
ec637e3f | 1482 | |
1da177e4 LT |
1483 | int |
1484 | CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon, | |
1485 | const int netfid, const unsigned int count, | |
1486 | const __u64 offset, unsigned int *nbytes, const char *buf, | |
50c2f753 | 1487 | const char __user *ubuf, const int long_op) |
1da177e4 LT |
1488 | { |
1489 | int rc = -EACCES; | |
1490 | WRITE_REQ *pSMB = NULL; | |
1491 | WRITE_RSP *pSMBr = NULL; | |
1c955187 | 1492 | int bytes_returned, wct; |
1da177e4 LT |
1493 | __u32 bytes_sent; |
1494 | __u16 byte_count; | |
1495 | ||
a24e2d7d SF |
1496 | *nbytes = 0; |
1497 | ||
b6b38f70 | 1498 | /* cFYI(1, "write at %lld %d bytes", offset, count);*/ |
790fe579 | 1499 | if (tcon->ses == NULL) |
1c955187 SF |
1500 | return -ECONNABORTED; |
1501 | ||
790fe579 | 1502 | if (tcon->ses->capabilities & CAP_LARGE_FILES) |
1c955187 | 1503 | wct = 14; |
4c3130ef | 1504 | else { |
1c955187 | 1505 | wct = 12; |
4c3130ef SF |
1506 | if ((offset >> 32) > 0) { |
1507 | /* can not handle big offset for old srv */ | |
1508 | return -EIO; | |
1509 | } | |
1510 | } | |
1c955187 SF |
1511 | |
1512 | rc = smb_init(SMB_COM_WRITE_ANDX, wct, tcon, (void **) &pSMB, | |
1da177e4 LT |
1513 | (void **) &pSMBr); |
1514 | if (rc) | |
1515 | return rc; | |
1516 | /* tcon and ses pointer are checked in smb_init */ | |
1517 | if (tcon->ses->server == NULL) | |
1518 | return -ECONNABORTED; | |
1519 | ||
1520 | pSMB->AndXCommand = 0xFF; /* none */ | |
1521 | pSMB->Fid = netfid; | |
1522 | pSMB->OffsetLow = cpu_to_le32(offset & 0xFFFFFFFF); | |
790fe579 | 1523 | if (wct == 14) |
1c955187 | 1524 | pSMB->OffsetHigh = cpu_to_le32(offset >> 32); |
50c2f753 | 1525 | |
1da177e4 LT |
1526 | pSMB->Reserved = 0xFFFFFFFF; |
1527 | pSMB->WriteMode = 0; | |
1528 | pSMB->Remaining = 0; | |
1529 | ||
50c2f753 | 1530 | /* Can increase buffer size if buffer is big enough in some cases ie we |
1da177e4 LT |
1531 | can send more if LARGE_WRITE_X capability returned by the server and if |
1532 | our buffer is big enough or if we convert to iovecs on socket writes | |
1533 | and eliminate the copy to the CIFS buffer */ | |
790fe579 | 1534 | if (tcon->ses->capabilities & CAP_LARGE_WRITE_X) { |
1da177e4 LT |
1535 | bytes_sent = min_t(const unsigned int, CIFSMaxBufSize, count); |
1536 | } else { | |
1537 | bytes_sent = (tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) | |
1538 | & ~0xFF; | |
1539 | } | |
1540 | ||
1541 | if (bytes_sent > count) | |
1542 | bytes_sent = count; | |
1543 | pSMB->DataOffset = | |
50c2f753 | 1544 | cpu_to_le16(offsetof(struct smb_com_write_req, Data) - 4); |
790fe579 | 1545 | if (buf) |
61e74801 | 1546 | memcpy(pSMB->Data, buf, bytes_sent); |
790fe579 SF |
1547 | else if (ubuf) { |
1548 | if (copy_from_user(pSMB->Data, ubuf, bytes_sent)) { | |
1da177e4 LT |
1549 | cifs_buf_release(pSMB); |
1550 | return -EFAULT; | |
1551 | } | |
e30dcf3a | 1552 | } else if (count != 0) { |
1da177e4 LT |
1553 | /* No buffer */ |
1554 | cifs_buf_release(pSMB); | |
1555 | return -EINVAL; | |
e30dcf3a | 1556 | } /* else setting file size with write of zero bytes */ |
790fe579 | 1557 | if (wct == 14) |
e30dcf3a | 1558 | byte_count = bytes_sent + 1; /* pad */ |
ad7a2926 | 1559 | else /* wct == 12 */ |
e30dcf3a | 1560 | byte_count = bytes_sent + 5; /* bigger pad, smaller smb hdr */ |
ad7a2926 | 1561 | |
1da177e4 LT |
1562 | pSMB->DataLengthLow = cpu_to_le16(bytes_sent & 0xFFFF); |
1563 | pSMB->DataLengthHigh = cpu_to_le16(bytes_sent >> 16); | |
e30dcf3a | 1564 | pSMB->hdr.smb_buf_length += byte_count; |
1c955187 | 1565 | |
790fe579 | 1566 | if (wct == 14) |
1c955187 | 1567 | pSMB->ByteCount = cpu_to_le16(byte_count); |
50c2f753 SF |
1568 | else { /* old style write has byte count 4 bytes earlier |
1569 | so 4 bytes pad */ | |
1570 | struct smb_com_writex_req *pSMBW = | |
1c955187 SF |
1571 | (struct smb_com_writex_req *)pSMB; |
1572 | pSMBW->ByteCount = cpu_to_le16(byte_count); | |
1573 | } | |
1da177e4 LT |
1574 | |
1575 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1576 | (struct smb_hdr *) pSMBr, &bytes_returned, long_op); | |
a4544347 | 1577 | cifs_stats_inc(&tcon->num_writes); |
1da177e4 | 1578 | if (rc) { |
f19159dc | 1579 | cFYI(1, "Send error in write = %d", rc); |
1da177e4 LT |
1580 | } else { |
1581 | *nbytes = le16_to_cpu(pSMBr->CountHigh); | |
1582 | *nbytes = (*nbytes) << 16; | |
1583 | *nbytes += le16_to_cpu(pSMBr->Count); | |
6513a81e SJ |
1584 | |
1585 | /* | |
1586 | * Mask off high 16 bits when bytes written as returned by the | |
1587 | * server is greater than bytes requested by the client. Some | |
1588 | * OS/2 servers are known to set incorrect CountHigh values. | |
1589 | */ | |
1590 | if (*nbytes > count) | |
1591 | *nbytes &= 0xFFFF; | |
1da177e4 LT |
1592 | } |
1593 | ||
1594 | cifs_buf_release(pSMB); | |
1595 | ||
50c2f753 | 1596 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
1da177e4 LT |
1597 | since file handle passed in no longer valid */ |
1598 | ||
1599 | return rc; | |
1600 | } | |
1601 | ||
d6e04ae6 SF |
1602 | int |
1603 | CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon, | |
1da177e4 | 1604 | const int netfid, const unsigned int count, |
3e84469d SF |
1605 | const __u64 offset, unsigned int *nbytes, struct kvec *iov, |
1606 | int n_vec, const int long_op) | |
1da177e4 LT |
1607 | { |
1608 | int rc = -EACCES; | |
1609 | WRITE_REQ *pSMB = NULL; | |
ec637e3f | 1610 | int wct; |
d6e04ae6 | 1611 | int smb_hdr_len; |
ec637e3f | 1612 | int resp_buf_type = 0; |
1da177e4 | 1613 | |
fbec9ab9 JL |
1614 | *nbytes = 0; |
1615 | ||
b6b38f70 | 1616 | cFYI(1, "write2 at %lld %d bytes", (long long)offset, count); |
ff7feac9 | 1617 | |
4c3130ef | 1618 | if (tcon->ses->capabilities & CAP_LARGE_FILES) { |
8cc64c6e | 1619 | wct = 14; |
4c3130ef | 1620 | } else { |
8cc64c6e | 1621 | wct = 12; |
4c3130ef SF |
1622 | if ((offset >> 32) > 0) { |
1623 | /* can not handle big offset for old srv */ | |
1624 | return -EIO; | |
1625 | } | |
1626 | } | |
8cc64c6e | 1627 | rc = small_smb_init(SMB_COM_WRITE_ANDX, wct, tcon, (void **) &pSMB); |
1da177e4 LT |
1628 | if (rc) |
1629 | return rc; | |
1da177e4 LT |
1630 | /* tcon and ses pointer are checked in smb_init */ |
1631 | if (tcon->ses->server == NULL) | |
1632 | return -ECONNABORTED; | |
1633 | ||
d6e04ae6 | 1634 | pSMB->AndXCommand = 0xFF; /* none */ |
1da177e4 LT |
1635 | pSMB->Fid = netfid; |
1636 | pSMB->OffsetLow = cpu_to_le32(offset & 0xFFFFFFFF); | |
790fe579 | 1637 | if (wct == 14) |
8cc64c6e | 1638 | pSMB->OffsetHigh = cpu_to_le32(offset >> 32); |
1da177e4 LT |
1639 | pSMB->Reserved = 0xFFFFFFFF; |
1640 | pSMB->WriteMode = 0; | |
1641 | pSMB->Remaining = 0; | |
d6e04ae6 | 1642 | |
1da177e4 | 1643 | pSMB->DataOffset = |
50c2f753 | 1644 | cpu_to_le16(offsetof(struct smb_com_write_req, Data) - 4); |
1da177e4 | 1645 | |
3e84469d SF |
1646 | pSMB->DataLengthLow = cpu_to_le16(count & 0xFFFF); |
1647 | pSMB->DataLengthHigh = cpu_to_le16(count >> 16); | |
d6e04ae6 | 1648 | smb_hdr_len = pSMB->hdr.smb_buf_length + 1; /* hdr + 1 byte pad */ |
790fe579 | 1649 | if (wct == 14) |
8cc64c6e SF |
1650 | pSMB->hdr.smb_buf_length += count+1; |
1651 | else /* wct == 12 */ | |
790fe579 SF |
1652 | pSMB->hdr.smb_buf_length += count+5; /* smb data starts later */ |
1653 | if (wct == 14) | |
8cc64c6e SF |
1654 | pSMB->ByteCount = cpu_to_le16(count + 1); |
1655 | else /* wct == 12 */ /* bigger pad, smaller smb hdr, keep offset ok */ { | |
50c2f753 | 1656 | struct smb_com_writex_req *pSMBW = |
8cc64c6e SF |
1657 | (struct smb_com_writex_req *)pSMB; |
1658 | pSMBW->ByteCount = cpu_to_le16(count + 5); | |
1659 | } | |
3e84469d | 1660 | iov[0].iov_base = pSMB; |
790fe579 | 1661 | if (wct == 14) |
ec637e3f SF |
1662 | iov[0].iov_len = smb_hdr_len + 4; |
1663 | else /* wct == 12 pad bigger by four bytes */ | |
1664 | iov[0].iov_len = smb_hdr_len + 8; | |
50c2f753 | 1665 | |
1da177e4 | 1666 | |
ec637e3f | 1667 | rc = SendReceive2(xid, tcon->ses, iov, n_vec + 1, &resp_buf_type, |
133672ef | 1668 | long_op); |
a4544347 | 1669 | cifs_stats_inc(&tcon->num_writes); |
1da177e4 | 1670 | if (rc) { |
b6b38f70 | 1671 | cFYI(1, "Send error Write2 = %d", rc); |
790fe579 | 1672 | } else if (resp_buf_type == 0) { |
ec637e3f SF |
1673 | /* presumably this can not happen, but best to be safe */ |
1674 | rc = -EIO; | |
d6e04ae6 | 1675 | } else { |
ad7a2926 | 1676 | WRITE_RSP *pSMBr = (WRITE_RSP *)iov[0].iov_base; |
d6e04ae6 SF |
1677 | *nbytes = le16_to_cpu(pSMBr->CountHigh); |
1678 | *nbytes = (*nbytes) << 16; | |
1679 | *nbytes += le16_to_cpu(pSMBr->Count); | |
6513a81e SJ |
1680 | |
1681 | /* | |
1682 | * Mask off high 16 bits when bytes written as returned by the | |
1683 | * server is greater than bytes requested by the client. OS/2 | |
1684 | * servers are known to set incorrect CountHigh values. | |
1685 | */ | |
1686 | if (*nbytes > count) | |
1687 | *nbytes &= 0xFFFF; | |
50c2f753 | 1688 | } |
1da177e4 | 1689 | |
4b8f930f | 1690 | /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */ |
790fe579 | 1691 | if (resp_buf_type == CIFS_SMALL_BUFFER) |
ec637e3f | 1692 | cifs_small_buf_release(iov[0].iov_base); |
790fe579 | 1693 | else if (resp_buf_type == CIFS_LARGE_BUFFER) |
ec637e3f | 1694 | cifs_buf_release(iov[0].iov_base); |
1da177e4 | 1695 | |
50c2f753 | 1696 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
1da177e4 LT |
1697 | since file handle passed in no longer valid */ |
1698 | ||
1699 | return rc; | |
1700 | } | |
d6e04ae6 SF |
1701 | |
1702 | ||
1da177e4 LT |
1703 | int |
1704 | CIFSSMBLock(const int xid, struct cifsTconInfo *tcon, | |
1705 | const __u16 smb_file_id, const __u64 len, | |
1706 | const __u64 offset, const __u32 numUnlock, | |
12fed00d PS |
1707 | const __u32 numLock, const __u8 lockType, |
1708 | const bool waitFlag, const __u8 oplock_level) | |
1da177e4 LT |
1709 | { |
1710 | int rc = 0; | |
1711 | LOCK_REQ *pSMB = NULL; | |
aaa9bbe0 | 1712 | /* LOCK_RSP *pSMBr = NULL; */ /* No response data other than rc to parse */ |
1da177e4 LT |
1713 | int bytes_returned; |
1714 | int timeout = 0; | |
1715 | __u16 count; | |
1716 | ||
b6b38f70 | 1717 | cFYI(1, "CIFSSMBLock timeout %d numLock %d", (int)waitFlag, numLock); |
46810cbf SF |
1718 | rc = small_smb_init(SMB_COM_LOCKING_ANDX, 8, tcon, (void **) &pSMB); |
1719 | ||
1da177e4 LT |
1720 | if (rc) |
1721 | return rc; | |
1722 | ||
790fe579 | 1723 | if (lockType == LOCKING_ANDX_OPLOCK_RELEASE) { |
133672ef | 1724 | timeout = CIFS_ASYNC_OP; /* no response expected */ |
1da177e4 | 1725 | pSMB->Timeout = 0; |
4b18f2a9 | 1726 | } else if (waitFlag) { |
133672ef | 1727 | timeout = CIFS_BLOCKING_OP; /* blocking operation, no timeout */ |
1da177e4 LT |
1728 | pSMB->Timeout = cpu_to_le32(-1);/* blocking - do not time out */ |
1729 | } else { | |
1730 | pSMB->Timeout = 0; | |
1731 | } | |
1732 | ||
1733 | pSMB->NumberOfLocks = cpu_to_le16(numLock); | |
1734 | pSMB->NumberOfUnlocks = cpu_to_le16(numUnlock); | |
1735 | pSMB->LockType = lockType; | |
12fed00d | 1736 | pSMB->OplockLevel = oplock_level; |
1da177e4 LT |
1737 | pSMB->AndXCommand = 0xFF; /* none */ |
1738 | pSMB->Fid = smb_file_id; /* netfid stays le */ | |
1739 | ||
790fe579 | 1740 | if ((numLock != 0) || (numUnlock != 0)) { |
1da177e4 LT |
1741 | pSMB->Locks[0].Pid = cpu_to_le16(current->tgid); |
1742 | /* BB where to store pid high? */ | |
1743 | pSMB->Locks[0].LengthLow = cpu_to_le32((u32)len); | |
1744 | pSMB->Locks[0].LengthHigh = cpu_to_le32((u32)(len>>32)); | |
1745 | pSMB->Locks[0].OffsetLow = cpu_to_le32((u32)offset); | |
1746 | pSMB->Locks[0].OffsetHigh = cpu_to_le32((u32)(offset>>32)); | |
1747 | count = sizeof(LOCKING_ANDX_RANGE); | |
1748 | } else { | |
1749 | /* oplock break */ | |
1750 | count = 0; | |
1751 | } | |
1752 | pSMB->hdr.smb_buf_length += count; | |
1753 | pSMB->ByteCount = cpu_to_le16(count); | |
1754 | ||
7ee1af76 JA |
1755 | if (waitFlag) { |
1756 | rc = SendReceiveBlockingLock(xid, tcon, (struct smb_hdr *) pSMB, | |
aaa9bbe0 | 1757 | (struct smb_hdr *) pSMB, &bytes_returned); |
133672ef | 1758 | cifs_small_buf_release(pSMB); |
7ee1af76 | 1759 | } else { |
133672ef SF |
1760 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *)pSMB, |
1761 | timeout); | |
1762 | /* SMB buffer freed by function above */ | |
7ee1af76 | 1763 | } |
a4544347 | 1764 | cifs_stats_inc(&tcon->num_locks); |
ad7a2926 | 1765 | if (rc) |
b6b38f70 | 1766 | cFYI(1, "Send error in Lock = %d", rc); |
1da177e4 | 1767 | |
50c2f753 | 1768 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
1da177e4 LT |
1769 | since file handle passed in no longer valid */ |
1770 | return rc; | |
1771 | } | |
1772 | ||
08547b03 SF |
1773 | int |
1774 | CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon, | |
1775 | const __u16 smb_file_id, const int get_flag, const __u64 len, | |
50c2f753 | 1776 | struct file_lock *pLockData, const __u16 lock_type, |
4b18f2a9 | 1777 | const bool waitFlag) |
08547b03 SF |
1778 | { |
1779 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
1780 | struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; | |
08547b03 SF |
1781 | struct cifs_posix_lock *parm_data; |
1782 | int rc = 0; | |
3a5ff61c | 1783 | int timeout = 0; |
08547b03 | 1784 | int bytes_returned = 0; |
133672ef | 1785 | int resp_buf_type = 0; |
08547b03 | 1786 | __u16 params, param_offset, offset, byte_count, count; |
133672ef | 1787 | struct kvec iov[1]; |
08547b03 | 1788 | |
b6b38f70 | 1789 | cFYI(1, "Posix Lock"); |
fc94cdb9 | 1790 | |
790fe579 | 1791 | if (pLockData == NULL) |
ed5f0370 | 1792 | return -EINVAL; |
fc94cdb9 | 1793 | |
08547b03 SF |
1794 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
1795 | ||
1796 | if (rc) | |
1797 | return rc; | |
1798 | ||
1799 | pSMBr = (struct smb_com_transaction2_sfi_rsp *)pSMB; | |
1800 | ||
50c2f753 | 1801 | params = 6; |
08547b03 SF |
1802 | pSMB->MaxSetupCount = 0; |
1803 | pSMB->Reserved = 0; | |
1804 | pSMB->Flags = 0; | |
08547b03 SF |
1805 | pSMB->Reserved2 = 0; |
1806 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
1807 | offset = param_offset + params; | |
1808 | ||
08547b03 SF |
1809 | count = sizeof(struct cifs_posix_lock); |
1810 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
ad7a2926 | 1811 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB from sess */ |
08547b03 SF |
1812 | pSMB->SetupCount = 1; |
1813 | pSMB->Reserved3 = 0; | |
790fe579 | 1814 | if (get_flag) |
08547b03 SF |
1815 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FILE_INFORMATION); |
1816 | else | |
1817 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
1818 | byte_count = 3 /* pad */ + params + count; | |
1819 | pSMB->DataCount = cpu_to_le16(count); | |
1820 | pSMB->ParameterCount = cpu_to_le16(params); | |
1821 | pSMB->TotalDataCount = pSMB->DataCount; | |
1822 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
1823 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
50c2f753 | 1824 | parm_data = (struct cifs_posix_lock *) |
08547b03 SF |
1825 | (((char *) &pSMB->hdr.Protocol) + offset); |
1826 | ||
1827 | parm_data->lock_type = cpu_to_le16(lock_type); | |
790fe579 | 1828 | if (waitFlag) { |
133672ef | 1829 | timeout = CIFS_BLOCKING_OP; /* blocking operation, no timeout */ |
cec6815a | 1830 | parm_data->lock_flags = cpu_to_le16(1); |
3a5ff61c SF |
1831 | pSMB->Timeout = cpu_to_le32(-1); |
1832 | } else | |
1833 | pSMB->Timeout = 0; | |
1834 | ||
08547b03 | 1835 | parm_data->pid = cpu_to_le32(current->tgid); |
fc94cdb9 | 1836 | parm_data->start = cpu_to_le64(pLockData->fl_start); |
cec6815a | 1837 | parm_data->length = cpu_to_le64(len); /* normalize negative numbers */ |
08547b03 SF |
1838 | |
1839 | pSMB->DataOffset = cpu_to_le16(offset); | |
f26282c9 | 1840 | pSMB->Fid = smb_file_id; |
08547b03 SF |
1841 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_POSIX_LOCK); |
1842 | pSMB->Reserved4 = 0; | |
1843 | pSMB->hdr.smb_buf_length += byte_count; | |
1844 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
7ee1af76 JA |
1845 | if (waitFlag) { |
1846 | rc = SendReceiveBlockingLock(xid, tcon, (struct smb_hdr *) pSMB, | |
1847 | (struct smb_hdr *) pSMBr, &bytes_returned); | |
1848 | } else { | |
133672ef SF |
1849 | iov[0].iov_base = (char *)pSMB; |
1850 | iov[0].iov_len = pSMB->hdr.smb_buf_length + 4; | |
1851 | rc = SendReceive2(xid, tcon->ses, iov, 1 /* num iovecs */, | |
1852 | &resp_buf_type, timeout); | |
1853 | pSMB = NULL; /* request buf already freed by SendReceive2. Do | |
1854 | not try to free it twice below on exit */ | |
1855 | pSMBr = (struct smb_com_transaction2_sfi_rsp *)iov[0].iov_base; | |
7ee1af76 JA |
1856 | } |
1857 | ||
08547b03 | 1858 | if (rc) { |
b6b38f70 | 1859 | cFYI(1, "Send error in Posix Lock = %d", rc); |
fc94cdb9 SF |
1860 | } else if (get_flag) { |
1861 | /* lock structure can be returned on get */ | |
1862 | __u16 data_offset; | |
1863 | __u16 data_count; | |
1864 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
1865 | ||
1866 | if (rc || (pSMBr->ByteCount < sizeof(struct cifs_posix_lock))) { | |
1867 | rc = -EIO; /* bad smb */ | |
1868 | goto plk_err_exit; | |
1869 | } | |
fc94cdb9 SF |
1870 | data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
1871 | data_count = le16_to_cpu(pSMBr->t2.DataCount); | |
790fe579 | 1872 | if (data_count < sizeof(struct cifs_posix_lock)) { |
fc94cdb9 SF |
1873 | rc = -EIO; |
1874 | goto plk_err_exit; | |
1875 | } | |
1876 | parm_data = (struct cifs_posix_lock *) | |
1877 | ((char *)&pSMBr->hdr.Protocol + data_offset); | |
f05337c6 | 1878 | if (parm_data->lock_type == __constant_cpu_to_le16(CIFS_UNLCK)) |
fc94cdb9 | 1879 | pLockData->fl_type = F_UNLCK; |
f05337c6 PS |
1880 | else { |
1881 | if (parm_data->lock_type == | |
1882 | __constant_cpu_to_le16(CIFS_RDLCK)) | |
1883 | pLockData->fl_type = F_RDLCK; | |
1884 | else if (parm_data->lock_type == | |
1885 | __constant_cpu_to_le16(CIFS_WRLCK)) | |
1886 | pLockData->fl_type = F_WRLCK; | |
1887 | ||
1888 | pLockData->fl_start = parm_data->start; | |
1889 | pLockData->fl_end = parm_data->start + | |
1890 | parm_data->length - 1; | |
1891 | pLockData->fl_pid = parm_data->pid; | |
1892 | } | |
08547b03 | 1893 | } |
50c2f753 | 1894 | |
fc94cdb9 | 1895 | plk_err_exit: |
08547b03 SF |
1896 | if (pSMB) |
1897 | cifs_small_buf_release(pSMB); | |
1898 | ||
133672ef SF |
1899 | if (resp_buf_type == CIFS_SMALL_BUFFER) |
1900 | cifs_small_buf_release(iov[0].iov_base); | |
1901 | else if (resp_buf_type == CIFS_LARGE_BUFFER) | |
1902 | cifs_buf_release(iov[0].iov_base); | |
1903 | ||
08547b03 SF |
1904 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
1905 | since file handle passed in no longer valid */ | |
1906 | ||
1907 | return rc; | |
1908 | } | |
1909 | ||
1910 | ||
1da177e4 LT |
1911 | int |
1912 | CIFSSMBClose(const int xid, struct cifsTconInfo *tcon, int smb_file_id) | |
1913 | { | |
1914 | int rc = 0; | |
1915 | CLOSE_REQ *pSMB = NULL; | |
b6b38f70 | 1916 | cFYI(1, "In CIFSSMBClose"); |
1da177e4 LT |
1917 | |
1918 | /* do not retry on dead session on close */ | |
1919 | rc = small_smb_init(SMB_COM_CLOSE, 3, tcon, (void **) &pSMB); | |
790fe579 | 1920 | if (rc == -EAGAIN) |
1da177e4 LT |
1921 | return 0; |
1922 | if (rc) | |
1923 | return rc; | |
1924 | ||
1da177e4 | 1925 | pSMB->FileID = (__u16) smb_file_id; |
b815f1e5 | 1926 | pSMB->LastWriteTime = 0xFFFFFFFF; |
1da177e4 | 1927 | pSMB->ByteCount = 0; |
133672ef | 1928 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); |
a4544347 | 1929 | cifs_stats_inc(&tcon->num_closes); |
1da177e4 | 1930 | if (rc) { |
790fe579 | 1931 | if (rc != -EINTR) { |
1da177e4 | 1932 | /* EINTR is expected when user ctl-c to kill app */ |
b6b38f70 | 1933 | cERROR(1, "Send error in Close = %d", rc); |
1da177e4 LT |
1934 | } |
1935 | } | |
1936 | ||
1da177e4 | 1937 | /* Since session is dead, file will be closed on server already */ |
790fe579 | 1938 | if (rc == -EAGAIN) |
1da177e4 LT |
1939 | rc = 0; |
1940 | ||
1941 | return rc; | |
1942 | } | |
1943 | ||
b298f223 SF |
1944 | int |
1945 | CIFSSMBFlush(const int xid, struct cifsTconInfo *tcon, int smb_file_id) | |
1946 | { | |
1947 | int rc = 0; | |
1948 | FLUSH_REQ *pSMB = NULL; | |
b6b38f70 | 1949 | cFYI(1, "In CIFSSMBFlush"); |
b298f223 SF |
1950 | |
1951 | rc = small_smb_init(SMB_COM_FLUSH, 1, tcon, (void **) &pSMB); | |
1952 | if (rc) | |
1953 | return rc; | |
1954 | ||
1955 | pSMB->FileID = (__u16) smb_file_id; | |
1956 | pSMB->ByteCount = 0; | |
1957 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); | |
1958 | cifs_stats_inc(&tcon->num_flushes); | |
1959 | if (rc) | |
b6b38f70 | 1960 | cERROR(1, "Send error in Flush = %d", rc); |
b298f223 SF |
1961 | |
1962 | return rc; | |
1963 | } | |
1964 | ||
1da177e4 LT |
1965 | int |
1966 | CIFSSMBRename(const int xid, struct cifsTconInfo *tcon, | |
1967 | const char *fromName, const char *toName, | |
737b758c | 1968 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
1969 | { |
1970 | int rc = 0; | |
1971 | RENAME_REQ *pSMB = NULL; | |
1972 | RENAME_RSP *pSMBr = NULL; | |
1973 | int bytes_returned; | |
1974 | int name_len, name_len2; | |
1975 | __u16 count; | |
1976 | ||
b6b38f70 | 1977 | cFYI(1, "In CIFSSMBRename"); |
1da177e4 LT |
1978 | renameRetry: |
1979 | rc = smb_init(SMB_COM_RENAME, 1, tcon, (void **) &pSMB, | |
1980 | (void **) &pSMBr); | |
1981 | if (rc) | |
1982 | return rc; | |
1983 | ||
1984 | pSMB->BufferFormat = 0x04; | |
1985 | pSMB->SearchAttributes = | |
1986 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | | |
1987 | ATTR_DIRECTORY); | |
1988 | ||
1989 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1990 | name_len = | |
50c2f753 | 1991 | cifsConvertToUCS((__le16 *) pSMB->OldFileName, fromName, |
737b758c | 1992 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1993 | name_len++; /* trailing null */ |
1994 | name_len *= 2; | |
1995 | pSMB->OldFileName[name_len] = 0x04; /* pad */ | |
1996 | /* protocol requires ASCII signature byte on Unicode string */ | |
1997 | pSMB->OldFileName[name_len + 1] = 0x00; | |
1998 | name_len2 = | |
582d21e5 | 1999 | cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2], |
737b758c | 2000 | toName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2001 | name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; |
2002 | name_len2 *= 2; /* convert to bytes */ | |
50c2f753 | 2003 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2004 | name_len = strnlen(fromName, PATH_MAX); |
2005 | name_len++; /* trailing null */ | |
2006 | strncpy(pSMB->OldFileName, fromName, name_len); | |
2007 | name_len2 = strnlen(toName, PATH_MAX); | |
2008 | name_len2++; /* trailing null */ | |
2009 | pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */ | |
2010 | strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2); | |
2011 | name_len2++; /* trailing null */ | |
2012 | name_len2++; /* signature byte */ | |
2013 | } | |
2014 | ||
2015 | count = 1 /* 1st signature byte */ + name_len + name_len2; | |
2016 | pSMB->hdr.smb_buf_length += count; | |
2017 | pSMB->ByteCount = cpu_to_le16(count); | |
2018 | ||
2019 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2020 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 2021 | cifs_stats_inc(&tcon->num_renames); |
ad7a2926 | 2022 | if (rc) |
b6b38f70 | 2023 | cFYI(1, "Send error in rename = %d", rc); |
1da177e4 | 2024 | |
1da177e4 LT |
2025 | cifs_buf_release(pSMB); |
2026 | ||
2027 | if (rc == -EAGAIN) | |
2028 | goto renameRetry; | |
2029 | ||
2030 | return rc; | |
2031 | } | |
2032 | ||
50c2f753 | 2033 | int CIFSSMBRenameOpenFile(const int xid, struct cifsTconInfo *pTcon, |
391e5755 | 2034 | int netfid, const char *target_name, |
50c2f753 | 2035 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
2036 | { |
2037 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
2038 | struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; | |
50c2f753 | 2039 | struct set_file_rename *rename_info; |
1da177e4 LT |
2040 | char *data_offset; |
2041 | char dummy_string[30]; | |
2042 | int rc = 0; | |
2043 | int bytes_returned = 0; | |
2044 | int len_of_str; | |
2045 | __u16 params, param_offset, offset, count, byte_count; | |
2046 | ||
b6b38f70 | 2047 | cFYI(1, "Rename to File by handle"); |
1da177e4 LT |
2048 | rc = smb_init(SMB_COM_TRANSACTION2, 15, pTcon, (void **) &pSMB, |
2049 | (void **) &pSMBr); | |
2050 | if (rc) | |
2051 | return rc; | |
2052 | ||
2053 | params = 6; | |
2054 | pSMB->MaxSetupCount = 0; | |
2055 | pSMB->Reserved = 0; | |
2056 | pSMB->Flags = 0; | |
2057 | pSMB->Timeout = 0; | |
2058 | pSMB->Reserved2 = 0; | |
2059 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
2060 | offset = param_offset + params; | |
2061 | ||
2062 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
2063 | rename_info = (struct set_file_rename *) data_offset; | |
2064 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
ad7a2926 | 2065 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB from sess */ |
1da177e4 LT |
2066 | pSMB->SetupCount = 1; |
2067 | pSMB->Reserved3 = 0; | |
2068 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
2069 | byte_count = 3 /* pad */ + params; | |
2070 | pSMB->ParameterCount = cpu_to_le16(params); | |
2071 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
2072 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
2073 | pSMB->DataOffset = cpu_to_le16(offset); | |
2074 | /* construct random name ".cifs_tmp<inodenum><mid>" */ | |
2075 | rename_info->overwrite = cpu_to_le32(1); | |
2076 | rename_info->root_fid = 0; | |
2077 | /* unicode only call */ | |
790fe579 | 2078 | if (target_name == NULL) { |
50c2f753 SF |
2079 | sprintf(dummy_string, "cifs%x", pSMB->hdr.Mid); |
2080 | len_of_str = cifsConvertToUCS((__le16 *)rename_info->target_name, | |
737b758c | 2081 | dummy_string, 24, nls_codepage, remap); |
1da177e4 | 2082 | } else { |
b1a45695 | 2083 | len_of_str = cifsConvertToUCS((__le16 *)rename_info->target_name, |
50c2f753 SF |
2084 | target_name, PATH_MAX, nls_codepage, |
2085 | remap); | |
1da177e4 LT |
2086 | } |
2087 | rename_info->target_name_len = cpu_to_le32(2 * len_of_str); | |
391e5755 | 2088 | count = 12 /* sizeof(struct set_file_rename) */ + (2 * len_of_str); |
1da177e4 LT |
2089 | byte_count += count; |
2090 | pSMB->DataCount = cpu_to_le16(count); | |
2091 | pSMB->TotalDataCount = pSMB->DataCount; | |
2092 | pSMB->Fid = netfid; | |
2093 | pSMB->InformationLevel = | |
2094 | cpu_to_le16(SMB_SET_FILE_RENAME_INFORMATION); | |
2095 | pSMB->Reserved4 = 0; | |
2096 | pSMB->hdr.smb_buf_length += byte_count; | |
2097 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2098 | rc = SendReceive(xid, pTcon->ses, (struct smb_hdr *) pSMB, | |
50c2f753 | 2099 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
a4544347 | 2100 | cifs_stats_inc(&pTcon->num_t2renames); |
ad7a2926 | 2101 | if (rc) |
b6b38f70 | 2102 | cFYI(1, "Send error in Rename (by file handle) = %d", rc); |
a5a2b489 | 2103 | |
1da177e4 LT |
2104 | cifs_buf_release(pSMB); |
2105 | ||
2106 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
2107 | since file handle passed in no longer valid */ | |
2108 | ||
2109 | return rc; | |
2110 | } | |
2111 | ||
2112 | int | |
50c2f753 SF |
2113 | CIFSSMBCopy(const int xid, struct cifsTconInfo *tcon, const char *fromName, |
2114 | const __u16 target_tid, const char *toName, const int flags, | |
2115 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
2116 | { |
2117 | int rc = 0; | |
2118 | COPY_REQ *pSMB = NULL; | |
2119 | COPY_RSP *pSMBr = NULL; | |
2120 | int bytes_returned; | |
2121 | int name_len, name_len2; | |
2122 | __u16 count; | |
2123 | ||
b6b38f70 | 2124 | cFYI(1, "In CIFSSMBCopy"); |
1da177e4 LT |
2125 | copyRetry: |
2126 | rc = smb_init(SMB_COM_COPY, 1, tcon, (void **) &pSMB, | |
2127 | (void **) &pSMBr); | |
2128 | if (rc) | |
2129 | return rc; | |
2130 | ||
2131 | pSMB->BufferFormat = 0x04; | |
2132 | pSMB->Tid2 = target_tid; | |
2133 | ||
2134 | pSMB->Flags = cpu_to_le16(flags & COPY_TREE); | |
2135 | ||
2136 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
50c2f753 | 2137 | name_len = cifsConvertToUCS((__le16 *) pSMB->OldFileName, |
737b758c SF |
2138 | fromName, PATH_MAX, nls_codepage, |
2139 | remap); | |
1da177e4 LT |
2140 | name_len++; /* trailing null */ |
2141 | name_len *= 2; | |
2142 | pSMB->OldFileName[name_len] = 0x04; /* pad */ | |
2143 | /* protocol requires ASCII signature byte on Unicode string */ | |
2144 | pSMB->OldFileName[name_len + 1] = 0x00; | |
50c2f753 SF |
2145 | name_len2 = |
2146 | cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2], | |
737b758c | 2147 | toName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2148 | name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; |
2149 | name_len2 *= 2; /* convert to bytes */ | |
50c2f753 | 2150 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2151 | name_len = strnlen(fromName, PATH_MAX); |
2152 | name_len++; /* trailing null */ | |
2153 | strncpy(pSMB->OldFileName, fromName, name_len); | |
2154 | name_len2 = strnlen(toName, PATH_MAX); | |
2155 | name_len2++; /* trailing null */ | |
2156 | pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */ | |
2157 | strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2); | |
2158 | name_len2++; /* trailing null */ | |
2159 | name_len2++; /* signature byte */ | |
2160 | } | |
2161 | ||
2162 | count = 1 /* 1st signature byte */ + name_len + name_len2; | |
2163 | pSMB->hdr.smb_buf_length += count; | |
2164 | pSMB->ByteCount = cpu_to_le16(count); | |
2165 | ||
2166 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2167 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2168 | if (rc) { | |
b6b38f70 JP |
2169 | cFYI(1, "Send error in copy = %d with %d files copied", |
2170 | rc, le16_to_cpu(pSMBr->CopyCount)); | |
1da177e4 | 2171 | } |
0d817bc0 | 2172 | cifs_buf_release(pSMB); |
1da177e4 LT |
2173 | |
2174 | if (rc == -EAGAIN) | |
2175 | goto copyRetry; | |
2176 | ||
2177 | return rc; | |
2178 | } | |
2179 | ||
2180 | int | |
2181 | CIFSUnixCreateSymLink(const int xid, struct cifsTconInfo *tcon, | |
2182 | const char *fromName, const char *toName, | |
2183 | const struct nls_table *nls_codepage) | |
2184 | { | |
2185 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
2186 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
2187 | char *data_offset; | |
2188 | int name_len; | |
2189 | int name_len_target; | |
2190 | int rc = 0; | |
2191 | int bytes_returned = 0; | |
2192 | __u16 params, param_offset, offset, byte_count; | |
2193 | ||
b6b38f70 | 2194 | cFYI(1, "In Symlink Unix style"); |
1da177e4 LT |
2195 | createSymLinkRetry: |
2196 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2197 | (void **) &pSMBr); | |
2198 | if (rc) | |
2199 | return rc; | |
2200 | ||
2201 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2202 | name_len = | |
e89dc920 | 2203 | cifs_strtoUCS((__le16 *) pSMB->FileName, fromName, PATH_MAX |
1da177e4 LT |
2204 | /* find define for this maxpathcomponent */ |
2205 | , nls_codepage); | |
2206 | name_len++; /* trailing null */ | |
2207 | name_len *= 2; | |
2208 | ||
50c2f753 | 2209 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2210 | name_len = strnlen(fromName, PATH_MAX); |
2211 | name_len++; /* trailing null */ | |
2212 | strncpy(pSMB->FileName, fromName, name_len); | |
2213 | } | |
2214 | params = 6 + name_len; | |
2215 | pSMB->MaxSetupCount = 0; | |
2216 | pSMB->Reserved = 0; | |
2217 | pSMB->Flags = 0; | |
2218 | pSMB->Timeout = 0; | |
2219 | pSMB->Reserved2 = 0; | |
2220 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 2221 | InformationLevel) - 4; |
1da177e4 LT |
2222 | offset = param_offset + params; |
2223 | ||
2224 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
2225 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2226 | name_len_target = | |
e89dc920 | 2227 | cifs_strtoUCS((__le16 *) data_offset, toName, PATH_MAX |
1da177e4 LT |
2228 | /* find define for this maxpathcomponent */ |
2229 | , nls_codepage); | |
2230 | name_len_target++; /* trailing null */ | |
2231 | name_len_target *= 2; | |
50c2f753 | 2232 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2233 | name_len_target = strnlen(toName, PATH_MAX); |
2234 | name_len_target++; /* trailing null */ | |
2235 | strncpy(data_offset, toName, name_len_target); | |
2236 | } | |
2237 | ||
2238 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
2239 | /* BB find exact max on data count below from sess */ | |
2240 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
2241 | pSMB->SetupCount = 1; | |
2242 | pSMB->Reserved3 = 0; | |
2243 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
2244 | byte_count = 3 /* pad */ + params + name_len_target; | |
2245 | pSMB->DataCount = cpu_to_le16(name_len_target); | |
2246 | pSMB->ParameterCount = cpu_to_le16(params); | |
2247 | pSMB->TotalDataCount = pSMB->DataCount; | |
2248 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
2249 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
2250 | pSMB->DataOffset = cpu_to_le16(offset); | |
2251 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_LINK); | |
2252 | pSMB->Reserved4 = 0; | |
2253 | pSMB->hdr.smb_buf_length += byte_count; | |
2254 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2255 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2256 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 2257 | cifs_stats_inc(&tcon->num_symlinks); |
ad7a2926 | 2258 | if (rc) |
b6b38f70 | 2259 | cFYI(1, "Send error in SetPathInfo create symlink = %d", rc); |
1da177e4 | 2260 | |
0d817bc0 | 2261 | cifs_buf_release(pSMB); |
1da177e4 LT |
2262 | |
2263 | if (rc == -EAGAIN) | |
2264 | goto createSymLinkRetry; | |
2265 | ||
2266 | return rc; | |
2267 | } | |
2268 | ||
2269 | int | |
2270 | CIFSUnixCreateHardLink(const int xid, struct cifsTconInfo *tcon, | |
2271 | const char *fromName, const char *toName, | |
737b758c | 2272 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
2273 | { |
2274 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
2275 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
2276 | char *data_offset; | |
2277 | int name_len; | |
2278 | int name_len_target; | |
2279 | int rc = 0; | |
2280 | int bytes_returned = 0; | |
2281 | __u16 params, param_offset, offset, byte_count; | |
2282 | ||
b6b38f70 | 2283 | cFYI(1, "In Create Hard link Unix style"); |
1da177e4 LT |
2284 | createHardLinkRetry: |
2285 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2286 | (void **) &pSMBr); | |
2287 | if (rc) | |
2288 | return rc; | |
2289 | ||
2290 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
b1a45695 | 2291 | name_len = cifsConvertToUCS((__le16 *) pSMB->FileName, toName, |
737b758c | 2292 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2293 | name_len++; /* trailing null */ |
2294 | name_len *= 2; | |
2295 | ||
50c2f753 | 2296 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2297 | name_len = strnlen(toName, PATH_MAX); |
2298 | name_len++; /* trailing null */ | |
2299 | strncpy(pSMB->FileName, toName, name_len); | |
2300 | } | |
2301 | params = 6 + name_len; | |
2302 | pSMB->MaxSetupCount = 0; | |
2303 | pSMB->Reserved = 0; | |
2304 | pSMB->Flags = 0; | |
2305 | pSMB->Timeout = 0; | |
2306 | pSMB->Reserved2 = 0; | |
2307 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 2308 | InformationLevel) - 4; |
1da177e4 LT |
2309 | offset = param_offset + params; |
2310 | ||
2311 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
2312 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2313 | name_len_target = | |
b1a45695 | 2314 | cifsConvertToUCS((__le16 *) data_offset, fromName, PATH_MAX, |
737b758c | 2315 | nls_codepage, remap); |
1da177e4 LT |
2316 | name_len_target++; /* trailing null */ |
2317 | name_len_target *= 2; | |
50c2f753 | 2318 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2319 | name_len_target = strnlen(fromName, PATH_MAX); |
2320 | name_len_target++; /* trailing null */ | |
2321 | strncpy(data_offset, fromName, name_len_target); | |
2322 | } | |
2323 | ||
2324 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
2325 | /* BB find exact max on data count below from sess*/ | |
2326 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
2327 | pSMB->SetupCount = 1; | |
2328 | pSMB->Reserved3 = 0; | |
2329 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
2330 | byte_count = 3 /* pad */ + params + name_len_target; | |
2331 | pSMB->ParameterCount = cpu_to_le16(params); | |
2332 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
2333 | pSMB->DataCount = cpu_to_le16(name_len_target); | |
2334 | pSMB->TotalDataCount = pSMB->DataCount; | |
2335 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
2336 | pSMB->DataOffset = cpu_to_le16(offset); | |
2337 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_HLINK); | |
2338 | pSMB->Reserved4 = 0; | |
2339 | pSMB->hdr.smb_buf_length += byte_count; | |
2340 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2341 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2342 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 2343 | cifs_stats_inc(&tcon->num_hardlinks); |
ad7a2926 | 2344 | if (rc) |
b6b38f70 | 2345 | cFYI(1, "Send error in SetPathInfo (hard link) = %d", rc); |
1da177e4 LT |
2346 | |
2347 | cifs_buf_release(pSMB); | |
2348 | if (rc == -EAGAIN) | |
2349 | goto createHardLinkRetry; | |
2350 | ||
2351 | return rc; | |
2352 | } | |
2353 | ||
2354 | int | |
2355 | CIFSCreateHardLink(const int xid, struct cifsTconInfo *tcon, | |
2356 | const char *fromName, const char *toName, | |
737b758c | 2357 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
2358 | { |
2359 | int rc = 0; | |
2360 | NT_RENAME_REQ *pSMB = NULL; | |
2361 | RENAME_RSP *pSMBr = NULL; | |
2362 | int bytes_returned; | |
2363 | int name_len, name_len2; | |
2364 | __u16 count; | |
2365 | ||
b6b38f70 | 2366 | cFYI(1, "In CIFSCreateHardLink"); |
1da177e4 LT |
2367 | winCreateHardLinkRetry: |
2368 | ||
2369 | rc = smb_init(SMB_COM_NT_RENAME, 4, tcon, (void **) &pSMB, | |
2370 | (void **) &pSMBr); | |
2371 | if (rc) | |
2372 | return rc; | |
2373 | ||
2374 | pSMB->SearchAttributes = | |
2375 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | | |
2376 | ATTR_DIRECTORY); | |
2377 | pSMB->Flags = cpu_to_le16(CREATE_HARD_LINK); | |
2378 | pSMB->ClusterCount = 0; | |
2379 | ||
2380 | pSMB->BufferFormat = 0x04; | |
2381 | ||
2382 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2383 | name_len = | |
b1a45695 | 2384 | cifsConvertToUCS((__le16 *) pSMB->OldFileName, fromName, |
737b758c | 2385 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2386 | name_len++; /* trailing null */ |
2387 | name_len *= 2; | |
fcc7c09d JL |
2388 | |
2389 | /* protocol specifies ASCII buffer format (0x04) for unicode */ | |
2390 | pSMB->OldFileName[name_len] = 0x04; | |
2391 | pSMB->OldFileName[name_len + 1] = 0x00; /* pad */ | |
1da177e4 | 2392 | name_len2 = |
50c2f753 | 2393 | cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2], |
737b758c | 2394 | toName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2395 | name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; |
2396 | name_len2 *= 2; /* convert to bytes */ | |
50c2f753 | 2397 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2398 | name_len = strnlen(fromName, PATH_MAX); |
2399 | name_len++; /* trailing null */ | |
2400 | strncpy(pSMB->OldFileName, fromName, name_len); | |
2401 | name_len2 = strnlen(toName, PATH_MAX); | |
2402 | name_len2++; /* trailing null */ | |
2403 | pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */ | |
2404 | strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2); | |
2405 | name_len2++; /* trailing null */ | |
2406 | name_len2++; /* signature byte */ | |
2407 | } | |
2408 | ||
2409 | count = 1 /* string type byte */ + name_len + name_len2; | |
2410 | pSMB->hdr.smb_buf_length += count; | |
2411 | pSMB->ByteCount = cpu_to_le16(count); | |
2412 | ||
2413 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2414 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 2415 | cifs_stats_inc(&tcon->num_hardlinks); |
ad7a2926 | 2416 | if (rc) |
b6b38f70 | 2417 | cFYI(1, "Send error in hard link (NT rename) = %d", rc); |
ad7a2926 | 2418 | |
1da177e4 LT |
2419 | cifs_buf_release(pSMB); |
2420 | if (rc == -EAGAIN) | |
2421 | goto winCreateHardLinkRetry; | |
2422 | ||
2423 | return rc; | |
2424 | } | |
2425 | ||
2426 | int | |
2427 | CIFSSMBUnixQuerySymLink(const int xid, struct cifsTconInfo *tcon, | |
460b9696 | 2428 | const unsigned char *searchName, char **symlinkinfo, |
1da177e4 LT |
2429 | const struct nls_table *nls_codepage) |
2430 | { | |
2431 | /* SMB_QUERY_FILE_UNIX_LINK */ | |
2432 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
2433 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
2434 | int rc = 0; | |
2435 | int bytes_returned; | |
2436 | int name_len; | |
2437 | __u16 params, byte_count; | |
460b9696 | 2438 | char *data_start; |
1da177e4 | 2439 | |
b6b38f70 | 2440 | cFYI(1, "In QPathSymLinkInfo (Unix) for path %s", searchName); |
1da177e4 LT |
2441 | |
2442 | querySymLinkRetry: | |
2443 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2444 | (void **) &pSMBr); | |
2445 | if (rc) | |
2446 | return rc; | |
2447 | ||
2448 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2449 | name_len = | |
50c2f753 SF |
2450 | cifs_strtoUCS((__le16 *) pSMB->FileName, searchName, |
2451 | PATH_MAX, nls_codepage); | |
1da177e4 LT |
2452 | name_len++; /* trailing null */ |
2453 | name_len *= 2; | |
50c2f753 | 2454 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2455 | name_len = strnlen(searchName, PATH_MAX); |
2456 | name_len++; /* trailing null */ | |
2457 | strncpy(pSMB->FileName, searchName, name_len); | |
2458 | } | |
2459 | ||
2460 | params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ; | |
2461 | pSMB->TotalDataCount = 0; | |
2462 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
46a7574c | 2463 | pSMB->MaxDataCount = cpu_to_le16(CIFSMaxBufSize); |
1da177e4 LT |
2464 | pSMB->MaxSetupCount = 0; |
2465 | pSMB->Reserved = 0; | |
2466 | pSMB->Flags = 0; | |
2467 | pSMB->Timeout = 0; | |
2468 | pSMB->Reserved2 = 0; | |
2469 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 2470 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
1da177e4 LT |
2471 | pSMB->DataCount = 0; |
2472 | pSMB->DataOffset = 0; | |
2473 | pSMB->SetupCount = 1; | |
2474 | pSMB->Reserved3 = 0; | |
2475 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
2476 | byte_count = params + 1 /* pad */ ; | |
2477 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
2478 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2479 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_UNIX_LINK); | |
2480 | pSMB->Reserved4 = 0; | |
2481 | pSMB->hdr.smb_buf_length += byte_count; | |
2482 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2483 | ||
2484 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2485 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2486 | if (rc) { | |
b6b38f70 | 2487 | cFYI(1, "Send error in QuerySymLinkInfo = %d", rc); |
1da177e4 LT |
2488 | } else { |
2489 | /* decode response */ | |
2490 | ||
2491 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
1da177e4 | 2492 | /* BB also check enough total bytes returned */ |
460b9696 JL |
2493 | if (rc || (pSMBr->ByteCount < 2)) |
2494 | rc = -EIO; | |
1da177e4 | 2495 | else { |
0e0d2cf3 | 2496 | bool is_unicode; |
460b9696 JL |
2497 | u16 count = le16_to_cpu(pSMBr->t2.DataCount); |
2498 | ||
2499 | data_start = ((char *) &pSMBr->hdr.Protocol) + | |
2500 | le16_to_cpu(pSMBr->t2.DataOffset); | |
1da177e4 | 2501 | |
0e0d2cf3 SF |
2502 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) |
2503 | is_unicode = true; | |
2504 | else | |
2505 | is_unicode = false; | |
2506 | ||
737b758c | 2507 | /* BB FIXME investigate remapping reserved chars here */ |
d185cda7 | 2508 | *symlinkinfo = cifs_strndup_from_ucs(data_start, count, |
0e0d2cf3 | 2509 | is_unicode, nls_codepage); |
8b6427a2 | 2510 | if (!*symlinkinfo) |
460b9696 | 2511 | rc = -ENOMEM; |
1da177e4 LT |
2512 | } |
2513 | } | |
2514 | cifs_buf_release(pSMB); | |
2515 | if (rc == -EAGAIN) | |
2516 | goto querySymLinkRetry; | |
2517 | return rc; | |
2518 | } | |
2519 | ||
c9489779 | 2520 | #ifdef CONFIG_CIFS_EXPERIMENTAL |
1da177e4 LT |
2521 | int |
2522 | CIFSSMBQueryReparseLinkInfo(const int xid, struct cifsTconInfo *tcon, | |
2523 | const unsigned char *searchName, | |
50c2f753 | 2524 | char *symlinkinfo, const int buflen, __u16 fid, |
1da177e4 LT |
2525 | const struct nls_table *nls_codepage) |
2526 | { | |
2527 | int rc = 0; | |
2528 | int bytes_returned; | |
50c2f753 SF |
2529 | struct smb_com_transaction_ioctl_req *pSMB; |
2530 | struct smb_com_transaction_ioctl_rsp *pSMBr; | |
1da177e4 | 2531 | |
b6b38f70 | 2532 | cFYI(1, "In Windows reparse style QueryLink for path %s", searchName); |
1da177e4 LT |
2533 | rc = smb_init(SMB_COM_NT_TRANSACT, 23, tcon, (void **) &pSMB, |
2534 | (void **) &pSMBr); | |
2535 | if (rc) | |
2536 | return rc; | |
2537 | ||
2538 | pSMB->TotalParameterCount = 0 ; | |
2539 | pSMB->TotalDataCount = 0; | |
2540 | pSMB->MaxParameterCount = cpu_to_le32(2); | |
2541 | /* BB find exact data count max from sess structure BB */ | |
0a4b92c0 SF |
2542 | pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf - |
2543 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
1da177e4 LT |
2544 | pSMB->MaxSetupCount = 4; |
2545 | pSMB->Reserved = 0; | |
2546 | pSMB->ParameterOffset = 0; | |
2547 | pSMB->DataCount = 0; | |
2548 | pSMB->DataOffset = 0; | |
2549 | pSMB->SetupCount = 4; | |
2550 | pSMB->SubCommand = cpu_to_le16(NT_TRANSACT_IOCTL); | |
2551 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2552 | pSMB->FunctionCode = cpu_to_le32(FSCTL_GET_REPARSE_POINT); | |
2553 | pSMB->IsFsctl = 1; /* FSCTL */ | |
2554 | pSMB->IsRootFlag = 0; | |
2555 | pSMB->Fid = fid; /* file handle always le */ | |
2556 | pSMB->ByteCount = 0; | |
2557 | ||
2558 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2559 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2560 | if (rc) { | |
b6b38f70 | 2561 | cFYI(1, "Send error in QueryReparseLinkInfo = %d", rc); |
1da177e4 LT |
2562 | } else { /* decode response */ |
2563 | __u32 data_offset = le32_to_cpu(pSMBr->DataOffset); | |
2564 | __u32 data_count = le32_to_cpu(pSMBr->DataCount); | |
afe48c31 | 2565 | if ((pSMBr->ByteCount < 2) || (data_offset > 512)) { |
1da177e4 LT |
2566 | /* BB also check enough total bytes returned */ |
2567 | rc = -EIO; /* bad smb */ | |
afe48c31 SF |
2568 | goto qreparse_out; |
2569 | } | |
2570 | if (data_count && (data_count < 2048)) { | |
2571 | char *end_of_smb = 2 /* sizeof byte count */ + | |
2572 | pSMBr->ByteCount + (char *)&pSMBr->ByteCount; | |
1da177e4 | 2573 | |
afe48c31 | 2574 | struct reparse_data *reparse_buf = |
50c2f753 SF |
2575 | (struct reparse_data *) |
2576 | ((char *)&pSMBr->hdr.Protocol | |
2577 | + data_offset); | |
afe48c31 SF |
2578 | if ((char *)reparse_buf >= end_of_smb) { |
2579 | rc = -EIO; | |
2580 | goto qreparse_out; | |
2581 | } | |
2582 | if ((reparse_buf->LinkNamesBuf + | |
2583 | reparse_buf->TargetNameOffset + | |
2584 | reparse_buf->TargetNameLen) > end_of_smb) { | |
b6b38f70 | 2585 | cFYI(1, "reparse buf beyond SMB"); |
afe48c31 SF |
2586 | rc = -EIO; |
2587 | goto qreparse_out; | |
2588 | } | |
50c2f753 | 2589 | |
afe48c31 SF |
2590 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { |
2591 | cifs_from_ucs2(symlinkinfo, (__le16 *) | |
50c2f753 SF |
2592 | (reparse_buf->LinkNamesBuf + |
2593 | reparse_buf->TargetNameOffset), | |
afe48c31 SF |
2594 | buflen, |
2595 | reparse_buf->TargetNameLen, | |
2596 | nls_codepage, 0); | |
2597 | } else { /* ASCII names */ | |
2598 | strncpy(symlinkinfo, | |
2599 | reparse_buf->LinkNamesBuf + | |
2600 | reparse_buf->TargetNameOffset, | |
2601 | min_t(const int, buflen, | |
2602 | reparse_buf->TargetNameLen)); | |
1da177e4 | 2603 | } |
afe48c31 SF |
2604 | } else { |
2605 | rc = -EIO; | |
b6b38f70 JP |
2606 | cFYI(1, "Invalid return data count on " |
2607 | "get reparse info ioctl"); | |
1da177e4 | 2608 | } |
afe48c31 SF |
2609 | symlinkinfo[buflen] = 0; /* just in case so the caller |
2610 | does not go off the end of the buffer */ | |
b6b38f70 | 2611 | cFYI(1, "readlink result - %s", symlinkinfo); |
1da177e4 | 2612 | } |
989c7e51 | 2613 | |
1da177e4 | 2614 | qreparse_out: |
4a6d87f1 | 2615 | cifs_buf_release(pSMB); |
1da177e4 LT |
2616 | |
2617 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
2618 | since file handle passed in no longer valid */ | |
2619 | ||
2620 | return rc; | |
2621 | } | |
afe48c31 | 2622 | #endif /* CIFS_EXPERIMENTAL */ |
1da177e4 LT |
2623 | |
2624 | #ifdef CONFIG_CIFS_POSIX | |
2625 | ||
2626 | /*Convert an Access Control Entry from wire format to local POSIX xattr format*/ | |
50c2f753 SF |
2627 | static void cifs_convert_ace(posix_acl_xattr_entry *ace, |
2628 | struct cifs_posix_ace *cifs_ace) | |
1da177e4 LT |
2629 | { |
2630 | /* u8 cifs fields do not need le conversion */ | |
ff7feac9 SF |
2631 | ace->e_perm = cpu_to_le16(cifs_ace->cifs_e_perm); |
2632 | ace->e_tag = cpu_to_le16(cifs_ace->cifs_e_tag); | |
2633 | ace->e_id = cpu_to_le32(le64_to_cpu(cifs_ace->cifs_uid)); | |
b6b38f70 | 2634 | /* cFYI(1, "perm %d tag %d id %d",ace->e_perm,ace->e_tag,ace->e_id); */ |
1da177e4 LT |
2635 | |
2636 | return; | |
2637 | } | |
2638 | ||
2639 | /* Convert ACL from CIFS POSIX wire format to local Linux POSIX ACL xattr */ | |
50c2f753 SF |
2640 | static int cifs_copy_posix_acl(char *trgt, char *src, const int buflen, |
2641 | const int acl_type, const int size_of_data_area) | |
1da177e4 LT |
2642 | { |
2643 | int size = 0; | |
2644 | int i; | |
2645 | __u16 count; | |
50c2f753 SF |
2646 | struct cifs_posix_ace *pACE; |
2647 | struct cifs_posix_acl *cifs_acl = (struct cifs_posix_acl *)src; | |
2648 | posix_acl_xattr_header *local_acl = (posix_acl_xattr_header *)trgt; | |
1da177e4 LT |
2649 | |
2650 | if (le16_to_cpu(cifs_acl->version) != CIFS_ACL_VERSION) | |
2651 | return -EOPNOTSUPP; | |
2652 | ||
790fe579 | 2653 | if (acl_type & ACL_TYPE_ACCESS) { |
1da177e4 LT |
2654 | count = le16_to_cpu(cifs_acl->access_entry_count); |
2655 | pACE = &cifs_acl->ace_array[0]; | |
2656 | size = sizeof(struct cifs_posix_acl); | |
2657 | size += sizeof(struct cifs_posix_ace) * count; | |
2658 | /* check if we would go beyond end of SMB */ | |
790fe579 | 2659 | if (size_of_data_area < size) { |
b6b38f70 JP |
2660 | cFYI(1, "bad CIFS POSIX ACL size %d vs. %d", |
2661 | size_of_data_area, size); | |
1da177e4 LT |
2662 | return -EINVAL; |
2663 | } | |
790fe579 | 2664 | } else if (acl_type & ACL_TYPE_DEFAULT) { |
1da177e4 LT |
2665 | count = le16_to_cpu(cifs_acl->access_entry_count); |
2666 | size = sizeof(struct cifs_posix_acl); | |
2667 | size += sizeof(struct cifs_posix_ace) * count; | |
2668 | /* skip past access ACEs to get to default ACEs */ | |
2669 | pACE = &cifs_acl->ace_array[count]; | |
2670 | count = le16_to_cpu(cifs_acl->default_entry_count); | |
2671 | size += sizeof(struct cifs_posix_ace) * count; | |
2672 | /* check if we would go beyond end of SMB */ | |
790fe579 | 2673 | if (size_of_data_area < size) |
1da177e4 LT |
2674 | return -EINVAL; |
2675 | } else { | |
2676 | /* illegal type */ | |
2677 | return -EINVAL; | |
2678 | } | |
2679 | ||
2680 | size = posix_acl_xattr_size(count); | |
790fe579 | 2681 | if ((buflen == 0) || (local_acl == NULL)) { |
50c2f753 | 2682 | /* used to query ACL EA size */ |
790fe579 | 2683 | } else if (size > buflen) { |
1da177e4 LT |
2684 | return -ERANGE; |
2685 | } else /* buffer big enough */ { | |
ff7feac9 | 2686 | local_acl->a_version = cpu_to_le32(POSIX_ACL_XATTR_VERSION); |
50c2f753 SF |
2687 | for (i = 0; i < count ; i++) { |
2688 | cifs_convert_ace(&local_acl->a_entries[i], pACE); | |
2689 | pACE++; | |
1da177e4 LT |
2690 | } |
2691 | } | |
2692 | return size; | |
2693 | } | |
2694 | ||
50c2f753 SF |
2695 | static __u16 convert_ace_to_cifs_ace(struct cifs_posix_ace *cifs_ace, |
2696 | const posix_acl_xattr_entry *local_ace) | |
1da177e4 LT |
2697 | { |
2698 | __u16 rc = 0; /* 0 = ACL converted ok */ | |
2699 | ||
ff7feac9 SF |
2700 | cifs_ace->cifs_e_perm = le16_to_cpu(local_ace->e_perm); |
2701 | cifs_ace->cifs_e_tag = le16_to_cpu(local_ace->e_tag); | |
1da177e4 | 2702 | /* BB is there a better way to handle the large uid? */ |
790fe579 | 2703 | if (local_ace->e_id == cpu_to_le32(-1)) { |
1da177e4 LT |
2704 | /* Probably no need to le convert -1 on any arch but can not hurt */ |
2705 | cifs_ace->cifs_uid = cpu_to_le64(-1); | |
50c2f753 | 2706 | } else |
ff7feac9 | 2707 | cifs_ace->cifs_uid = cpu_to_le64(le32_to_cpu(local_ace->e_id)); |
b6b38f70 | 2708 | /*cFYI(1, "perm %d tag %d id %d",ace->e_perm,ace->e_tag,ace->e_id);*/ |
1da177e4 LT |
2709 | return rc; |
2710 | } | |
2711 | ||
2712 | /* Convert ACL from local Linux POSIX xattr to CIFS POSIX ACL wire format */ | |
50c2f753 SF |
2713 | static __u16 ACL_to_cifs_posix(char *parm_data, const char *pACL, |
2714 | const int buflen, const int acl_type) | |
1da177e4 LT |
2715 | { |
2716 | __u16 rc = 0; | |
50c2f753 SF |
2717 | struct cifs_posix_acl *cifs_acl = (struct cifs_posix_acl *)parm_data; |
2718 | posix_acl_xattr_header *local_acl = (posix_acl_xattr_header *)pACL; | |
1da177e4 LT |
2719 | int count; |
2720 | int i; | |
2721 | ||
790fe579 | 2722 | if ((buflen == 0) || (pACL == NULL) || (cifs_acl == NULL)) |
1da177e4 LT |
2723 | return 0; |
2724 | ||
2725 | count = posix_acl_xattr_count((size_t)buflen); | |
b6b38f70 | 2726 | cFYI(1, "setting acl with %d entries from buf of length %d and " |
63135e08 | 2727 | "version of %d", |
b6b38f70 | 2728 | count, buflen, le32_to_cpu(local_acl->a_version)); |
790fe579 | 2729 | if (le32_to_cpu(local_acl->a_version) != 2) { |
b6b38f70 JP |
2730 | cFYI(1, "unknown POSIX ACL version %d", |
2731 | le32_to_cpu(local_acl->a_version)); | |
1da177e4 LT |
2732 | return 0; |
2733 | } | |
2734 | cifs_acl->version = cpu_to_le16(1); | |
790fe579 | 2735 | if (acl_type == ACL_TYPE_ACCESS) |
ff7feac9 | 2736 | cifs_acl->access_entry_count = cpu_to_le16(count); |
790fe579 | 2737 | else if (acl_type == ACL_TYPE_DEFAULT) |
ff7feac9 | 2738 | cifs_acl->default_entry_count = cpu_to_le16(count); |
1da177e4 | 2739 | else { |
b6b38f70 | 2740 | cFYI(1, "unknown ACL type %d", acl_type); |
1da177e4 LT |
2741 | return 0; |
2742 | } | |
50c2f753 | 2743 | for (i = 0; i < count; i++) { |
1da177e4 LT |
2744 | rc = convert_ace_to_cifs_ace(&cifs_acl->ace_array[i], |
2745 | &local_acl->a_entries[i]); | |
790fe579 | 2746 | if (rc != 0) { |
1da177e4 LT |
2747 | /* ACE not converted */ |
2748 | break; | |
2749 | } | |
2750 | } | |
790fe579 | 2751 | if (rc == 0) { |
1da177e4 LT |
2752 | rc = (__u16)(count * sizeof(struct cifs_posix_ace)); |
2753 | rc += sizeof(struct cifs_posix_acl); | |
2754 | /* BB add check to make sure ACL does not overflow SMB */ | |
2755 | } | |
2756 | return rc; | |
2757 | } | |
2758 | ||
2759 | int | |
2760 | CIFSSMBGetPosixACL(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 SF |
2761 | const unsigned char *searchName, |
2762 | char *acl_inf, const int buflen, const int acl_type, | |
2763 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
2764 | { |
2765 | /* SMB_QUERY_POSIX_ACL */ | |
2766 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
2767 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
2768 | int rc = 0; | |
2769 | int bytes_returned; | |
2770 | int name_len; | |
2771 | __u16 params, byte_count; | |
50c2f753 | 2772 | |
b6b38f70 | 2773 | cFYI(1, "In GetPosixACL (Unix) for path %s", searchName); |
1da177e4 LT |
2774 | |
2775 | queryAclRetry: | |
2776 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2777 | (void **) &pSMBr); | |
2778 | if (rc) | |
2779 | return rc; | |
50c2f753 | 2780 | |
1da177e4 LT |
2781 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
2782 | name_len = | |
50c2f753 | 2783 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 2784 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2785 | name_len++; /* trailing null */ |
2786 | name_len *= 2; | |
2787 | pSMB->FileName[name_len] = 0; | |
2788 | pSMB->FileName[name_len+1] = 0; | |
50c2f753 | 2789 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2790 | name_len = strnlen(searchName, PATH_MAX); |
2791 | name_len++; /* trailing null */ | |
2792 | strncpy(pSMB->FileName, searchName, name_len); | |
2793 | } | |
2794 | ||
2795 | params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ; | |
2796 | pSMB->TotalDataCount = 0; | |
2797 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
50c2f753 | 2798 | /* BB find exact max data count below from sess structure BB */ |
1da177e4 LT |
2799 | pSMB->MaxDataCount = cpu_to_le16(4000); |
2800 | pSMB->MaxSetupCount = 0; | |
2801 | pSMB->Reserved = 0; | |
2802 | pSMB->Flags = 0; | |
2803 | pSMB->Timeout = 0; | |
2804 | pSMB->Reserved2 = 0; | |
2805 | pSMB->ParameterOffset = cpu_to_le16( | |
50c2f753 SF |
2806 | offsetof(struct smb_com_transaction2_qpi_req, |
2807 | InformationLevel) - 4); | |
1da177e4 LT |
2808 | pSMB->DataCount = 0; |
2809 | pSMB->DataOffset = 0; | |
2810 | pSMB->SetupCount = 1; | |
2811 | pSMB->Reserved3 = 0; | |
2812 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
2813 | byte_count = params + 1 /* pad */ ; | |
2814 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
2815 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2816 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_POSIX_ACL); | |
2817 | pSMB->Reserved4 = 0; | |
2818 | pSMB->hdr.smb_buf_length += byte_count; | |
2819 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2820 | ||
2821 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2822 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
0a4b92c0 | 2823 | cifs_stats_inc(&tcon->num_acl_get); |
1da177e4 | 2824 | if (rc) { |
b6b38f70 | 2825 | cFYI(1, "Send error in Query POSIX ACL = %d", rc); |
1da177e4 LT |
2826 | } else { |
2827 | /* decode response */ | |
50c2f753 | 2828 | |
1da177e4 LT |
2829 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
2830 | if (rc || (pSMBr->ByteCount < 2)) | |
2831 | /* BB also check enough total bytes returned */ | |
2832 | rc = -EIO; /* bad smb */ | |
2833 | else { | |
2834 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
2835 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); | |
2836 | rc = cifs_copy_posix_acl(acl_inf, | |
2837 | (char *)&pSMBr->hdr.Protocol+data_offset, | |
50c2f753 | 2838 | buflen, acl_type, count); |
1da177e4 LT |
2839 | } |
2840 | } | |
2841 | cifs_buf_release(pSMB); | |
2842 | if (rc == -EAGAIN) | |
2843 | goto queryAclRetry; | |
2844 | return rc; | |
2845 | } | |
2846 | ||
2847 | int | |
2848 | CIFSSMBSetPosixACL(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 SF |
2849 | const unsigned char *fileName, |
2850 | const char *local_acl, const int buflen, | |
2851 | const int acl_type, | |
2852 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
2853 | { |
2854 | struct smb_com_transaction2_spi_req *pSMB = NULL; | |
2855 | struct smb_com_transaction2_spi_rsp *pSMBr = NULL; | |
2856 | char *parm_data; | |
2857 | int name_len; | |
2858 | int rc = 0; | |
2859 | int bytes_returned = 0; | |
2860 | __u16 params, byte_count, data_count, param_offset, offset; | |
2861 | ||
b6b38f70 | 2862 | cFYI(1, "In SetPosixACL (Unix) for path %s", fileName); |
1da177e4 LT |
2863 | setAclRetry: |
2864 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
50c2f753 | 2865 | (void **) &pSMBr); |
1da177e4 LT |
2866 | if (rc) |
2867 | return rc; | |
2868 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2869 | name_len = | |
50c2f753 | 2870 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 2871 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2872 | name_len++; /* trailing null */ |
2873 | name_len *= 2; | |
50c2f753 | 2874 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2875 | name_len = strnlen(fileName, PATH_MAX); |
2876 | name_len++; /* trailing null */ | |
2877 | strncpy(pSMB->FileName, fileName, name_len); | |
2878 | } | |
2879 | params = 6 + name_len; | |
2880 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
582d21e5 SF |
2881 | /* BB find max SMB size from sess */ |
2882 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1da177e4 LT |
2883 | pSMB->MaxSetupCount = 0; |
2884 | pSMB->Reserved = 0; | |
2885 | pSMB->Flags = 0; | |
2886 | pSMB->Timeout = 0; | |
2887 | pSMB->Reserved2 = 0; | |
2888 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 2889 | InformationLevel) - 4; |
1da177e4 LT |
2890 | offset = param_offset + params; |
2891 | parm_data = ((char *) &pSMB->hdr.Protocol) + offset; | |
2892 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
2893 | ||
2894 | /* convert to on the wire format for POSIX ACL */ | |
50c2f753 | 2895 | data_count = ACL_to_cifs_posix(parm_data, local_acl, buflen, acl_type); |
1da177e4 | 2896 | |
790fe579 | 2897 | if (data_count == 0) { |
1da177e4 LT |
2898 | rc = -EOPNOTSUPP; |
2899 | goto setACLerrorExit; | |
2900 | } | |
2901 | pSMB->DataOffset = cpu_to_le16(offset); | |
2902 | pSMB->SetupCount = 1; | |
2903 | pSMB->Reserved3 = 0; | |
2904 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
2905 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_POSIX_ACL); | |
2906 | byte_count = 3 /* pad */ + params + data_count; | |
2907 | pSMB->DataCount = cpu_to_le16(data_count); | |
2908 | pSMB->TotalDataCount = pSMB->DataCount; | |
2909 | pSMB->ParameterCount = cpu_to_le16(params); | |
2910 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
2911 | pSMB->Reserved4 = 0; | |
2912 | pSMB->hdr.smb_buf_length += byte_count; | |
2913 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2914 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
50c2f753 | 2915 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
ad7a2926 | 2916 | if (rc) |
b6b38f70 | 2917 | cFYI(1, "Set POSIX ACL returned %d", rc); |
1da177e4 LT |
2918 | |
2919 | setACLerrorExit: | |
2920 | cifs_buf_release(pSMB); | |
2921 | if (rc == -EAGAIN) | |
2922 | goto setAclRetry; | |
2923 | return rc; | |
2924 | } | |
2925 | ||
f654bac2 SF |
2926 | /* BB fix tabs in this function FIXME BB */ |
2927 | int | |
2928 | CIFSGetExtAttr(const int xid, struct cifsTconInfo *tcon, | |
ad7a2926 | 2929 | const int netfid, __u64 *pExtAttrBits, __u64 *pMask) |
f654bac2 | 2930 | { |
50c2f753 SF |
2931 | int rc = 0; |
2932 | struct smb_t2_qfi_req *pSMB = NULL; | |
2933 | struct smb_t2_qfi_rsp *pSMBr = NULL; | |
2934 | int bytes_returned; | |
2935 | __u16 params, byte_count; | |
f654bac2 | 2936 | |
b6b38f70 | 2937 | cFYI(1, "In GetExtAttr"); |
790fe579 SF |
2938 | if (tcon == NULL) |
2939 | return -ENODEV; | |
f654bac2 SF |
2940 | |
2941 | GetExtAttrRetry: | |
790fe579 SF |
2942 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
2943 | (void **) &pSMBr); | |
2944 | if (rc) | |
2945 | return rc; | |
f654bac2 | 2946 | |
ad7a2926 | 2947 | params = 2 /* level */ + 2 /* fid */; |
790fe579 SF |
2948 | pSMB->t2.TotalDataCount = 0; |
2949 | pSMB->t2.MaxParameterCount = cpu_to_le16(4); | |
2950 | /* BB find exact max data count below from sess structure BB */ | |
2951 | pSMB->t2.MaxDataCount = cpu_to_le16(4000); | |
2952 | pSMB->t2.MaxSetupCount = 0; | |
2953 | pSMB->t2.Reserved = 0; | |
2954 | pSMB->t2.Flags = 0; | |
2955 | pSMB->t2.Timeout = 0; | |
2956 | pSMB->t2.Reserved2 = 0; | |
2957 | pSMB->t2.ParameterOffset = cpu_to_le16(offsetof(struct smb_t2_qfi_req, | |
2958 | Fid) - 4); | |
2959 | pSMB->t2.DataCount = 0; | |
2960 | pSMB->t2.DataOffset = 0; | |
2961 | pSMB->t2.SetupCount = 1; | |
2962 | pSMB->t2.Reserved3 = 0; | |
2963 | pSMB->t2.SubCommand = cpu_to_le16(TRANS2_QUERY_FILE_INFORMATION); | |
2964 | byte_count = params + 1 /* pad */ ; | |
2965 | pSMB->t2.TotalParameterCount = cpu_to_le16(params); | |
2966 | pSMB->t2.ParameterCount = pSMB->t2.TotalParameterCount; | |
2967 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_ATTR_FLAGS); | |
2968 | pSMB->Pad = 0; | |
f654bac2 | 2969 | pSMB->Fid = netfid; |
790fe579 SF |
2970 | pSMB->hdr.smb_buf_length += byte_count; |
2971 | pSMB->t2.ByteCount = cpu_to_le16(byte_count); | |
2972 | ||
2973 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2974 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2975 | if (rc) { | |
b6b38f70 | 2976 | cFYI(1, "error %d in GetExtAttr", rc); |
790fe579 SF |
2977 | } else { |
2978 | /* decode response */ | |
2979 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
2980 | if (rc || (pSMBr->ByteCount < 2)) | |
2981 | /* BB also check enough total bytes returned */ | |
2982 | /* If rc should we check for EOPNOSUPP and | |
2983 | disable the srvino flag? or in caller? */ | |
2984 | rc = -EIO; /* bad smb */ | |
2985 | else { | |
2986 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
2987 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); | |
2988 | struct file_chattr_info *pfinfo; | |
2989 | /* BB Do we need a cast or hash here ? */ | |
2990 | if (count != 16) { | |
b6b38f70 | 2991 | cFYI(1, "Illegal size ret in GetExtAttr"); |
790fe579 SF |
2992 | rc = -EIO; |
2993 | goto GetExtAttrOut; | |
2994 | } | |
2995 | pfinfo = (struct file_chattr_info *) | |
2996 | (data_offset + (char *) &pSMBr->hdr.Protocol); | |
2997 | *pExtAttrBits = le64_to_cpu(pfinfo->mode); | |
f654bac2 | 2998 | *pMask = le64_to_cpu(pfinfo->mask); |
790fe579 SF |
2999 | } |
3000 | } | |
f654bac2 | 3001 | GetExtAttrOut: |
790fe579 SF |
3002 | cifs_buf_release(pSMB); |
3003 | if (rc == -EAGAIN) | |
3004 | goto GetExtAttrRetry; | |
3005 | return rc; | |
f654bac2 SF |
3006 | } |
3007 | ||
f654bac2 | 3008 | #endif /* CONFIG_POSIX */ |
1da177e4 | 3009 | |
79df1bae JL |
3010 | #ifdef CONFIG_CIFS_ACL |
3011 | /* | |
3012 | * Initialize NT TRANSACT SMB into small smb request buffer. This assumes that | |
3013 | * all NT TRANSACTS that we init here have total parm and data under about 400 | |
3014 | * bytes (to fit in small cifs buffer size), which is the case so far, it | |
3015 | * easily fits. NB: Setup words themselves and ByteCount MaxSetupCount (size of | |
3016 | * returned setup area) and MaxParameterCount (returned parms size) must be set | |
3017 | * by caller | |
3018 | */ | |
3019 | static int | |
3020 | smb_init_nttransact(const __u16 sub_command, const int setup_count, | |
3021 | const int parm_len, struct cifsTconInfo *tcon, | |
3022 | void **ret_buf) | |
3023 | { | |
3024 | int rc; | |
3025 | __u32 temp_offset; | |
3026 | struct smb_com_ntransact_req *pSMB; | |
3027 | ||
3028 | rc = small_smb_init(SMB_COM_NT_TRANSACT, 19 + setup_count, tcon, | |
3029 | (void **)&pSMB); | |
3030 | if (rc) | |
3031 | return rc; | |
3032 | *ret_buf = (void *)pSMB; | |
3033 | pSMB->Reserved = 0; | |
3034 | pSMB->TotalParameterCount = cpu_to_le32(parm_len); | |
3035 | pSMB->TotalDataCount = 0; | |
3036 | pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf - | |
3037 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
3038 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3039 | pSMB->DataCount = pSMB->TotalDataCount; | |
3040 | temp_offset = offsetof(struct smb_com_ntransact_req, Parms) + | |
3041 | (setup_count * 2) - 4 /* for rfc1001 length itself */; | |
3042 | pSMB->ParameterOffset = cpu_to_le32(temp_offset); | |
3043 | pSMB->DataOffset = cpu_to_le32(temp_offset + parm_len); | |
3044 | pSMB->SetupCount = setup_count; /* no need to le convert byte fields */ | |
3045 | pSMB->SubCommand = cpu_to_le16(sub_command); | |
3046 | return 0; | |
3047 | } | |
3048 | ||
3049 | static int | |
3050 | validate_ntransact(char *buf, char **ppparm, char **ppdata, | |
3051 | __u32 *pparmlen, __u32 *pdatalen) | |
3052 | { | |
3053 | char *end_of_smb; | |
3054 | __u32 data_count, data_offset, parm_count, parm_offset; | |
3055 | struct smb_com_ntransact_rsp *pSMBr; | |
3056 | ||
3057 | *pdatalen = 0; | |
3058 | *pparmlen = 0; | |
3059 | ||
3060 | if (buf == NULL) | |
3061 | return -EINVAL; | |
3062 | ||
3063 | pSMBr = (struct smb_com_ntransact_rsp *)buf; | |
3064 | ||
3065 | /* ByteCount was converted from little endian in SendReceive */ | |
3066 | end_of_smb = 2 /* sizeof byte count */ + pSMBr->ByteCount + | |
3067 | (char *)&pSMBr->ByteCount; | |
3068 | ||
3069 | data_offset = le32_to_cpu(pSMBr->DataOffset); | |
3070 | data_count = le32_to_cpu(pSMBr->DataCount); | |
3071 | parm_offset = le32_to_cpu(pSMBr->ParameterOffset); | |
3072 | parm_count = le32_to_cpu(pSMBr->ParameterCount); | |
3073 | ||
3074 | *ppparm = (char *)&pSMBr->hdr.Protocol + parm_offset; | |
3075 | *ppdata = (char *)&pSMBr->hdr.Protocol + data_offset; | |
3076 | ||
3077 | /* should we also check that parm and data areas do not overlap? */ | |
3078 | if (*ppparm > end_of_smb) { | |
3079 | cFYI(1, "parms start after end of smb"); | |
3080 | return -EINVAL; | |
3081 | } else if (parm_count + *ppparm > end_of_smb) { | |
3082 | cFYI(1, "parm end after end of smb"); | |
3083 | return -EINVAL; | |
3084 | } else if (*ppdata > end_of_smb) { | |
3085 | cFYI(1, "data starts after end of smb"); | |
3086 | return -EINVAL; | |
3087 | } else if (data_count + *ppdata > end_of_smb) { | |
3088 | cFYI(1, "data %p + count %d (%p) past smb end %p start %p", | |
3089 | *ppdata, data_count, (data_count + *ppdata), | |
3090 | end_of_smb, pSMBr); | |
3091 | return -EINVAL; | |
3092 | } else if (parm_count + data_count > pSMBr->ByteCount) { | |
3093 | cFYI(1, "parm count and data count larger than SMB"); | |
3094 | return -EINVAL; | |
3095 | } | |
3096 | *pdatalen = data_count; | |
3097 | *pparmlen = parm_count; | |
3098 | return 0; | |
3099 | } | |
3100 | ||
0a4b92c0 SF |
3101 | /* Get Security Descriptor (by handle) from remote server for a file or dir */ |
3102 | int | |
3103 | CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid, | |
630f3f0c | 3104 | struct cifs_ntsd **acl_inf, __u32 *pbuflen) |
0a4b92c0 SF |
3105 | { |
3106 | int rc = 0; | |
3107 | int buf_type = 0; | |
ad7a2926 | 3108 | QUERY_SEC_DESC_REQ *pSMB; |
0a4b92c0 SF |
3109 | struct kvec iov[1]; |
3110 | ||
b6b38f70 | 3111 | cFYI(1, "GetCifsACL"); |
0a4b92c0 | 3112 | |
630f3f0c SF |
3113 | *pbuflen = 0; |
3114 | *acl_inf = NULL; | |
3115 | ||
b9c7a2bb | 3116 | rc = smb_init_nttransact(NT_TRANSACT_QUERY_SECURITY_DESC, 0, |
0a4b92c0 SF |
3117 | 8 /* parm len */, tcon, (void **) &pSMB); |
3118 | if (rc) | |
3119 | return rc; | |
3120 | ||
3121 | pSMB->MaxParameterCount = cpu_to_le32(4); | |
3122 | /* BB TEST with big acls that might need to be e.g. larger than 16K */ | |
3123 | pSMB->MaxSetupCount = 0; | |
3124 | pSMB->Fid = fid; /* file handle always le */ | |
3125 | pSMB->AclFlags = cpu_to_le32(CIFS_ACL_OWNER | CIFS_ACL_GROUP | | |
3126 | CIFS_ACL_DACL); | |
3127 | pSMB->ByteCount = cpu_to_le16(11); /* 3 bytes pad + 8 bytes parm */ | |
3128 | pSMB->hdr.smb_buf_length += 11; | |
3129 | iov[0].iov_base = (char *)pSMB; | |
3130 | iov[0].iov_len = pSMB->hdr.smb_buf_length + 4; | |
3131 | ||
a761ac57 | 3132 | rc = SendReceive2(xid, tcon->ses, iov, 1 /* num iovec */, &buf_type, |
7749981e | 3133 | 0); |
0a4b92c0 SF |
3134 | cifs_stats_inc(&tcon->num_acl_get); |
3135 | if (rc) { | |
b6b38f70 | 3136 | cFYI(1, "Send error in QuerySecDesc = %d", rc); |
0a4b92c0 | 3137 | } else { /* decode response */ |
ad7a2926 | 3138 | __le32 *parm; |
630f3f0c SF |
3139 | __u32 parm_len; |
3140 | __u32 acl_len; | |
50c2f753 | 3141 | struct smb_com_ntransact_rsp *pSMBr; |
630f3f0c | 3142 | char *pdata; |
0a4b92c0 SF |
3143 | |
3144 | /* validate_nttransact */ | |
50c2f753 | 3145 | rc = validate_ntransact(iov[0].iov_base, (char **)&parm, |
630f3f0c | 3146 | &pdata, &parm_len, pbuflen); |
790fe579 | 3147 | if (rc) |
0a4b92c0 SF |
3148 | goto qsec_out; |
3149 | pSMBr = (struct smb_com_ntransact_rsp *)iov[0].iov_base; | |
3150 | ||
b6b38f70 | 3151 | cFYI(1, "smb %p parm %p data %p", pSMBr, parm, *acl_inf); |
0a4b92c0 SF |
3152 | |
3153 | if (le32_to_cpu(pSMBr->ParameterCount) != 4) { | |
3154 | rc = -EIO; /* bad smb */ | |
630f3f0c | 3155 | *pbuflen = 0; |
0a4b92c0 SF |
3156 | goto qsec_out; |
3157 | } | |
3158 | ||
3159 | /* BB check that data area is minimum length and as big as acl_len */ | |
3160 | ||
af6f4612 | 3161 | acl_len = le32_to_cpu(*parm); |
630f3f0c | 3162 | if (acl_len != *pbuflen) { |
b6b38f70 JP |
3163 | cERROR(1, "acl length %d does not match %d", |
3164 | acl_len, *pbuflen); | |
630f3f0c SF |
3165 | if (*pbuflen > acl_len) |
3166 | *pbuflen = acl_len; | |
3167 | } | |
0a4b92c0 | 3168 | |
630f3f0c SF |
3169 | /* check if buffer is big enough for the acl |
3170 | header followed by the smallest SID */ | |
3171 | if ((*pbuflen < sizeof(struct cifs_ntsd) + 8) || | |
3172 | (*pbuflen >= 64 * 1024)) { | |
b6b38f70 | 3173 | cERROR(1, "bad acl length %d", *pbuflen); |
630f3f0c SF |
3174 | rc = -EINVAL; |
3175 | *pbuflen = 0; | |
3176 | } else { | |
3177 | *acl_inf = kmalloc(*pbuflen, GFP_KERNEL); | |
3178 | if (*acl_inf == NULL) { | |
3179 | *pbuflen = 0; | |
3180 | rc = -ENOMEM; | |
3181 | } | |
3182 | memcpy(*acl_inf, pdata, *pbuflen); | |
3183 | } | |
0a4b92c0 SF |
3184 | } |
3185 | qsec_out: | |
790fe579 | 3186 | if (buf_type == CIFS_SMALL_BUFFER) |
0a4b92c0 | 3187 | cifs_small_buf_release(iov[0].iov_base); |
790fe579 | 3188 | else if (buf_type == CIFS_LARGE_BUFFER) |
0a4b92c0 | 3189 | cifs_buf_release(iov[0].iov_base); |
4b8f930f | 3190 | /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */ |
0a4b92c0 SF |
3191 | return rc; |
3192 | } | |
97837582 SF |
3193 | |
3194 | int | |
3195 | CIFSSMBSetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid, | |
3196 | struct cifs_ntsd *pntsd, __u32 acllen) | |
3197 | { | |
3198 | __u16 byte_count, param_count, data_count, param_offset, data_offset; | |
3199 | int rc = 0; | |
3200 | int bytes_returned = 0; | |
3201 | SET_SEC_DESC_REQ *pSMB = NULL; | |
3202 | NTRANSACT_RSP *pSMBr = NULL; | |
3203 | ||
3204 | setCifsAclRetry: | |
3205 | rc = smb_init(SMB_COM_NT_TRANSACT, 19, tcon, (void **) &pSMB, | |
3206 | (void **) &pSMBr); | |
3207 | if (rc) | |
3208 | return (rc); | |
3209 | ||
3210 | pSMB->MaxSetupCount = 0; | |
3211 | pSMB->Reserved = 0; | |
3212 | ||
3213 | param_count = 8; | |
3214 | param_offset = offsetof(struct smb_com_transaction_ssec_req, Fid) - 4; | |
3215 | data_count = acllen; | |
3216 | data_offset = param_offset + param_count; | |
3217 | byte_count = 3 /* pad */ + param_count; | |
3218 | ||
3219 | pSMB->DataCount = cpu_to_le32(data_count); | |
3220 | pSMB->TotalDataCount = pSMB->DataCount; | |
3221 | pSMB->MaxParameterCount = cpu_to_le32(4); | |
3222 | pSMB->MaxDataCount = cpu_to_le32(16384); | |
3223 | pSMB->ParameterCount = cpu_to_le32(param_count); | |
3224 | pSMB->ParameterOffset = cpu_to_le32(param_offset); | |
3225 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
3226 | pSMB->DataOffset = cpu_to_le32(data_offset); | |
3227 | pSMB->SetupCount = 0; | |
3228 | pSMB->SubCommand = cpu_to_le16(NT_TRANSACT_SET_SECURITY_DESC); | |
3229 | pSMB->ByteCount = cpu_to_le16(byte_count+data_count); | |
3230 | ||
3231 | pSMB->Fid = fid; /* file handle always le */ | |
3232 | pSMB->Reserved2 = 0; | |
3233 | pSMB->AclFlags = cpu_to_le32(CIFS_ACL_DACL); | |
3234 | ||
3235 | if (pntsd && acllen) { | |
3236 | memcpy((char *) &pSMBr->hdr.Protocol + data_offset, | |
3237 | (char *) pntsd, | |
3238 | acllen); | |
3239 | pSMB->hdr.smb_buf_length += (byte_count + data_count); | |
3240 | ||
3241 | } else | |
3242 | pSMB->hdr.smb_buf_length += byte_count; | |
3243 | ||
3244 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3245 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3246 | ||
b6b38f70 | 3247 | cFYI(1, "SetCIFSACL bytes_returned: %d, rc: %d", bytes_returned, rc); |
97837582 | 3248 | if (rc) |
b6b38f70 | 3249 | cFYI(1, "Set CIFS ACL returned %d", rc); |
97837582 SF |
3250 | cifs_buf_release(pSMB); |
3251 | ||
3252 | if (rc == -EAGAIN) | |
3253 | goto setCifsAclRetry; | |
3254 | ||
3255 | return (rc); | |
3256 | } | |
3257 | ||
79df1bae | 3258 | #endif /* CONFIG_CIFS_ACL */ |
0a4b92c0 | 3259 | |
6b8edfe0 SF |
3260 | /* Legacy Query Path Information call for lookup to old servers such |
3261 | as Win9x/WinME */ | |
3262 | int SMBQueryInformation(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 SF |
3263 | const unsigned char *searchName, |
3264 | FILE_ALL_INFO *pFinfo, | |
3265 | const struct nls_table *nls_codepage, int remap) | |
6b8edfe0 | 3266 | { |
ad7a2926 SF |
3267 | QUERY_INFORMATION_REQ *pSMB; |
3268 | QUERY_INFORMATION_RSP *pSMBr; | |
6b8edfe0 SF |
3269 | int rc = 0; |
3270 | int bytes_returned; | |
3271 | int name_len; | |
3272 | ||
b6b38f70 | 3273 | cFYI(1, "In SMBQPath path %s", searchName); |
6b8edfe0 SF |
3274 | QInfRetry: |
3275 | rc = smb_init(SMB_COM_QUERY_INFORMATION, 0, tcon, (void **) &pSMB, | |
50c2f753 | 3276 | (void **) &pSMBr); |
6b8edfe0 SF |
3277 | if (rc) |
3278 | return rc; | |
3279 | ||
3280 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3281 | name_len = | |
50c2f753 SF |
3282 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
3283 | PATH_MAX, nls_codepage, remap); | |
6b8edfe0 SF |
3284 | name_len++; /* trailing null */ |
3285 | name_len *= 2; | |
50c2f753 | 3286 | } else { |
6b8edfe0 SF |
3287 | name_len = strnlen(searchName, PATH_MAX); |
3288 | name_len++; /* trailing null */ | |
3289 | strncpy(pSMB->FileName, searchName, name_len); | |
3290 | } | |
3291 | pSMB->BufferFormat = 0x04; | |
50c2f753 | 3292 | name_len++; /* account for buffer type byte */ |
6b8edfe0 SF |
3293 | pSMB->hdr.smb_buf_length += (__u16) name_len; |
3294 | pSMB->ByteCount = cpu_to_le16(name_len); | |
3295 | ||
3296 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
50c2f753 | 3297 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
6b8edfe0 | 3298 | if (rc) { |
b6b38f70 | 3299 | cFYI(1, "Send error in QueryInfo = %d", rc); |
ad7a2926 | 3300 | } else if (pFinfo) { |
1bd5bbcb SF |
3301 | struct timespec ts; |
3302 | __u32 time = le32_to_cpu(pSMBr->last_write_time); | |
ad7a2926 SF |
3303 | |
3304 | /* decode response */ | |
1bd5bbcb | 3305 | /* BB FIXME - add time zone adjustment BB */ |
6b8edfe0 | 3306 | memset(pFinfo, 0, sizeof(FILE_ALL_INFO)); |
1bd5bbcb SF |
3307 | ts.tv_nsec = 0; |
3308 | ts.tv_sec = time; | |
3309 | /* decode time fields */ | |
733f99ac | 3310 | pFinfo->ChangeTime = cpu_to_le64(cifs_UnixTimeToNT(ts)); |
1bd5bbcb SF |
3311 | pFinfo->LastWriteTime = pFinfo->ChangeTime; |
3312 | pFinfo->LastAccessTime = 0; | |
70ca734a SF |
3313 | pFinfo->AllocationSize = |
3314 | cpu_to_le64(le32_to_cpu(pSMBr->size)); | |
3315 | pFinfo->EndOfFile = pFinfo->AllocationSize; | |
3316 | pFinfo->Attributes = | |
3317 | cpu_to_le32(le16_to_cpu(pSMBr->attr)); | |
6b8edfe0 SF |
3318 | } else |
3319 | rc = -EIO; /* bad buffer passed in */ | |
3320 | ||
3321 | cifs_buf_release(pSMB); | |
3322 | ||
3323 | if (rc == -EAGAIN) | |
3324 | goto QInfRetry; | |
3325 | ||
3326 | return rc; | |
3327 | } | |
3328 | ||
bcd5357f JL |
3329 | int |
3330 | CIFSSMBQFileInfo(const int xid, struct cifsTconInfo *tcon, | |
3331 | u16 netfid, FILE_ALL_INFO *pFindData) | |
3332 | { | |
3333 | struct smb_t2_qfi_req *pSMB = NULL; | |
3334 | struct smb_t2_qfi_rsp *pSMBr = NULL; | |
3335 | int rc = 0; | |
3336 | int bytes_returned; | |
3337 | __u16 params, byte_count; | |
3338 | ||
3339 | QFileInfoRetry: | |
3340 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3341 | (void **) &pSMBr); | |
3342 | if (rc) | |
3343 | return rc; | |
3344 | ||
3345 | params = 2 /* level */ + 2 /* fid */; | |
3346 | pSMB->t2.TotalDataCount = 0; | |
3347 | pSMB->t2.MaxParameterCount = cpu_to_le16(4); | |
3348 | /* BB find exact max data count below from sess structure BB */ | |
3349 | pSMB->t2.MaxDataCount = cpu_to_le16(CIFSMaxBufSize); | |
3350 | pSMB->t2.MaxSetupCount = 0; | |
3351 | pSMB->t2.Reserved = 0; | |
3352 | pSMB->t2.Flags = 0; | |
3353 | pSMB->t2.Timeout = 0; | |
3354 | pSMB->t2.Reserved2 = 0; | |
3355 | pSMB->t2.ParameterOffset = cpu_to_le16(offsetof(struct smb_t2_qfi_req, | |
3356 | Fid) - 4); | |
3357 | pSMB->t2.DataCount = 0; | |
3358 | pSMB->t2.DataOffset = 0; | |
3359 | pSMB->t2.SetupCount = 1; | |
3360 | pSMB->t2.Reserved3 = 0; | |
3361 | pSMB->t2.SubCommand = cpu_to_le16(TRANS2_QUERY_FILE_INFORMATION); | |
3362 | byte_count = params + 1 /* pad */ ; | |
3363 | pSMB->t2.TotalParameterCount = cpu_to_le16(params); | |
3364 | pSMB->t2.ParameterCount = pSMB->t2.TotalParameterCount; | |
3365 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_ALL_INFO); | |
3366 | pSMB->Pad = 0; | |
3367 | pSMB->Fid = netfid; | |
3368 | pSMB->hdr.smb_buf_length += byte_count; | |
6b8edfe0 | 3369 | |
bcd5357f JL |
3370 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
3371 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3372 | if (rc) { | |
f19159dc | 3373 | cFYI(1, "Send error in QPathInfo = %d", rc); |
bcd5357f JL |
3374 | } else { /* decode response */ |
3375 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
6b8edfe0 | 3376 | |
bcd5357f JL |
3377 | if (rc) /* BB add auto retry on EOPNOTSUPP? */ |
3378 | rc = -EIO; | |
3379 | else if (pSMBr->ByteCount < 40) | |
3380 | rc = -EIO; /* bad smb */ | |
3381 | else if (pFindData) { | |
3382 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
3383 | memcpy((char *) pFindData, | |
3384 | (char *) &pSMBr->hdr.Protocol + | |
3385 | data_offset, sizeof(FILE_ALL_INFO)); | |
3386 | } else | |
3387 | rc = -ENOMEM; | |
3388 | } | |
3389 | cifs_buf_release(pSMB); | |
3390 | if (rc == -EAGAIN) | |
3391 | goto QFileInfoRetry; | |
6b8edfe0 | 3392 | |
bcd5357f JL |
3393 | return rc; |
3394 | } | |
6b8edfe0 | 3395 | |
1da177e4 LT |
3396 | int |
3397 | CIFSSMBQPathInfo(const int xid, struct cifsTconInfo *tcon, | |
3398 | const unsigned char *searchName, | |
ad7a2926 | 3399 | FILE_ALL_INFO *pFindData, |
acf1a1b1 | 3400 | int legacy /* old style infolevel */, |
737b758c | 3401 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
3402 | { |
3403 | /* level 263 SMB_QUERY_FILE_ALL_INFO */ | |
3404 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
3405 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
3406 | int rc = 0; | |
3407 | int bytes_returned; | |
3408 | int name_len; | |
3409 | __u16 params, byte_count; | |
3410 | ||
b6b38f70 | 3411 | /* cFYI(1, "In QPathInfo path %s", searchName); */ |
1da177e4 LT |
3412 | QPathInfoRetry: |
3413 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3414 | (void **) &pSMBr); | |
3415 | if (rc) | |
3416 | return rc; | |
3417 | ||
3418 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3419 | name_len = | |
50c2f753 | 3420 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 3421 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
3422 | name_len++; /* trailing null */ |
3423 | name_len *= 2; | |
50c2f753 | 3424 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
3425 | name_len = strnlen(searchName, PATH_MAX); |
3426 | name_len++; /* trailing null */ | |
3427 | strncpy(pSMB->FileName, searchName, name_len); | |
3428 | } | |
3429 | ||
50c2f753 | 3430 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */; |
1da177e4 LT |
3431 | pSMB->TotalDataCount = 0; |
3432 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
582d21e5 SF |
3433 | /* BB find exact max SMB PDU from sess structure BB */ |
3434 | pSMB->MaxDataCount = cpu_to_le16(4000); | |
1da177e4 LT |
3435 | pSMB->MaxSetupCount = 0; |
3436 | pSMB->Reserved = 0; | |
3437 | pSMB->Flags = 0; | |
3438 | pSMB->Timeout = 0; | |
3439 | pSMB->Reserved2 = 0; | |
3440 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 3441 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
1da177e4 LT |
3442 | pSMB->DataCount = 0; |
3443 | pSMB->DataOffset = 0; | |
3444 | pSMB->SetupCount = 1; | |
3445 | pSMB->Reserved3 = 0; | |
3446 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
3447 | byte_count = params + 1 /* pad */ ; | |
3448 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3449 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
790fe579 | 3450 | if (legacy) |
acf1a1b1 SF |
3451 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_STANDARD); |
3452 | else | |
3453 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_ALL_INFO); | |
1da177e4 LT |
3454 | pSMB->Reserved4 = 0; |
3455 | pSMB->hdr.smb_buf_length += byte_count; | |
3456 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3457 | ||
3458 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3459 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3460 | if (rc) { | |
b6b38f70 | 3461 | cFYI(1, "Send error in QPathInfo = %d", rc); |
1da177e4 LT |
3462 | } else { /* decode response */ |
3463 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3464 | ||
acf1a1b1 SF |
3465 | if (rc) /* BB add auto retry on EOPNOTSUPP? */ |
3466 | rc = -EIO; | |
50c2f753 | 3467 | else if (!legacy && (pSMBr->ByteCount < 40)) |
1da177e4 | 3468 | rc = -EIO; /* bad smb */ |
790fe579 | 3469 | else if (legacy && (pSMBr->ByteCount < 24)) |
50c2f753 SF |
3470 | rc = -EIO; /* 24 or 26 expected but we do not read |
3471 | last field */ | |
3472 | else if (pFindData) { | |
acf1a1b1 | 3473 | int size; |
1da177e4 | 3474 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
ad7a2926 SF |
3475 | |
3476 | /* On legacy responses we do not read the last field, | |
3477 | EAsize, fortunately since it varies by subdialect and | |
3478 | also note it differs on Set vs. Get, ie two bytes or 4 | |
3479 | bytes depending but we don't care here */ | |
3480 | if (legacy) | |
acf1a1b1 SF |
3481 | size = sizeof(FILE_INFO_STANDARD); |
3482 | else | |
3483 | size = sizeof(FILE_ALL_INFO); | |
1da177e4 LT |
3484 | memcpy((char *) pFindData, |
3485 | (char *) &pSMBr->hdr.Protocol + | |
acf1a1b1 | 3486 | data_offset, size); |
1da177e4 LT |
3487 | } else |
3488 | rc = -ENOMEM; | |
3489 | } | |
3490 | cifs_buf_release(pSMB); | |
3491 | if (rc == -EAGAIN) | |
3492 | goto QPathInfoRetry; | |
3493 | ||
3494 | return rc; | |
3495 | } | |
3496 | ||
c8634fd3 JL |
3497 | int |
3498 | CIFSSMBUnixQFileInfo(const int xid, struct cifsTconInfo *tcon, | |
3499 | u16 netfid, FILE_UNIX_BASIC_INFO *pFindData) | |
3500 | { | |
3501 | struct smb_t2_qfi_req *pSMB = NULL; | |
3502 | struct smb_t2_qfi_rsp *pSMBr = NULL; | |
3503 | int rc = 0; | |
3504 | int bytes_returned; | |
3505 | __u16 params, byte_count; | |
3506 | ||
3507 | UnixQFileInfoRetry: | |
3508 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3509 | (void **) &pSMBr); | |
3510 | if (rc) | |
3511 | return rc; | |
3512 | ||
3513 | params = 2 /* level */ + 2 /* fid */; | |
3514 | pSMB->t2.TotalDataCount = 0; | |
3515 | pSMB->t2.MaxParameterCount = cpu_to_le16(4); | |
3516 | /* BB find exact max data count below from sess structure BB */ | |
3517 | pSMB->t2.MaxDataCount = cpu_to_le16(CIFSMaxBufSize); | |
3518 | pSMB->t2.MaxSetupCount = 0; | |
3519 | pSMB->t2.Reserved = 0; | |
3520 | pSMB->t2.Flags = 0; | |
3521 | pSMB->t2.Timeout = 0; | |
3522 | pSMB->t2.Reserved2 = 0; | |
3523 | pSMB->t2.ParameterOffset = cpu_to_le16(offsetof(struct smb_t2_qfi_req, | |
3524 | Fid) - 4); | |
3525 | pSMB->t2.DataCount = 0; | |
3526 | pSMB->t2.DataOffset = 0; | |
3527 | pSMB->t2.SetupCount = 1; | |
3528 | pSMB->t2.Reserved3 = 0; | |
3529 | pSMB->t2.SubCommand = cpu_to_le16(TRANS2_QUERY_FILE_INFORMATION); | |
3530 | byte_count = params + 1 /* pad */ ; | |
3531 | pSMB->t2.TotalParameterCount = cpu_to_le16(params); | |
3532 | pSMB->t2.ParameterCount = pSMB->t2.TotalParameterCount; | |
3533 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_UNIX_BASIC); | |
3534 | pSMB->Pad = 0; | |
3535 | pSMB->Fid = netfid; | |
3536 | pSMB->hdr.smb_buf_length += byte_count; | |
3537 | ||
3538 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3539 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3540 | if (rc) { | |
f19159dc | 3541 | cFYI(1, "Send error in QPathInfo = %d", rc); |
c8634fd3 JL |
3542 | } else { /* decode response */ |
3543 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3544 | ||
3545 | if (rc || (pSMBr->ByteCount < sizeof(FILE_UNIX_BASIC_INFO))) { | |
f19159dc | 3546 | cERROR(1, "Malformed FILE_UNIX_BASIC_INFO response.\n" |
c8634fd3 | 3547 | "Unix Extensions can be disabled on mount " |
f19159dc | 3548 | "by specifying the nosfu mount option."); |
c8634fd3 JL |
3549 | rc = -EIO; /* bad smb */ |
3550 | } else { | |
3551 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
3552 | memcpy((char *) pFindData, | |
3553 | (char *) &pSMBr->hdr.Protocol + | |
3554 | data_offset, | |
3555 | sizeof(FILE_UNIX_BASIC_INFO)); | |
3556 | } | |
3557 | } | |
3558 | ||
3559 | cifs_buf_release(pSMB); | |
3560 | if (rc == -EAGAIN) | |
3561 | goto UnixQFileInfoRetry; | |
3562 | ||
3563 | return rc; | |
3564 | } | |
3565 | ||
1da177e4 LT |
3566 | int |
3567 | CIFSSMBUnixQPathInfo(const int xid, struct cifsTconInfo *tcon, | |
3568 | const unsigned char *searchName, | |
582d21e5 | 3569 | FILE_UNIX_BASIC_INFO *pFindData, |
737b758c | 3570 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
3571 | { |
3572 | /* SMB_QUERY_FILE_UNIX_BASIC */ | |
3573 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
3574 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
3575 | int rc = 0; | |
3576 | int bytes_returned = 0; | |
3577 | int name_len; | |
3578 | __u16 params, byte_count; | |
3579 | ||
b6b38f70 | 3580 | cFYI(1, "In QPathInfo (Unix) the path %s", searchName); |
1da177e4 LT |
3581 | UnixQPathInfoRetry: |
3582 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3583 | (void **) &pSMBr); | |
3584 | if (rc) | |
3585 | return rc; | |
3586 | ||
3587 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3588 | name_len = | |
b1a45695 | 3589 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 3590 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
3591 | name_len++; /* trailing null */ |
3592 | name_len *= 2; | |
50c2f753 | 3593 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
3594 | name_len = strnlen(searchName, PATH_MAX); |
3595 | name_len++; /* trailing null */ | |
3596 | strncpy(pSMB->FileName, searchName, name_len); | |
3597 | } | |
3598 | ||
50c2f753 | 3599 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */; |
1da177e4 LT |
3600 | pSMB->TotalDataCount = 0; |
3601 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3602 | /* BB find exact max SMB PDU from sess structure BB */ | |
50c2f753 | 3603 | pSMB->MaxDataCount = cpu_to_le16(4000); |
1da177e4 LT |
3604 | pSMB->MaxSetupCount = 0; |
3605 | pSMB->Reserved = 0; | |
3606 | pSMB->Flags = 0; | |
3607 | pSMB->Timeout = 0; | |
3608 | pSMB->Reserved2 = 0; | |
3609 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 3610 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
1da177e4 LT |
3611 | pSMB->DataCount = 0; |
3612 | pSMB->DataOffset = 0; | |
3613 | pSMB->SetupCount = 1; | |
3614 | pSMB->Reserved3 = 0; | |
3615 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
3616 | byte_count = params + 1 /* pad */ ; | |
3617 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3618 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3619 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_UNIX_BASIC); | |
3620 | pSMB->Reserved4 = 0; | |
3621 | pSMB->hdr.smb_buf_length += byte_count; | |
3622 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3623 | ||
3624 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3625 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3626 | if (rc) { | |
b6b38f70 | 3627 | cFYI(1, "Send error in QPathInfo = %d", rc); |
1da177e4 LT |
3628 | } else { /* decode response */ |
3629 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3630 | ||
3631 | if (rc || (pSMBr->ByteCount < sizeof(FILE_UNIX_BASIC_INFO))) { | |
b6b38f70 | 3632 | cERROR(1, "Malformed FILE_UNIX_BASIC_INFO response.\n" |
1e71f25d | 3633 | "Unix Extensions can be disabled on mount " |
b6b38f70 | 3634 | "by specifying the nosfu mount option."); |
1da177e4 LT |
3635 | rc = -EIO; /* bad smb */ |
3636 | } else { | |
3637 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
3638 | memcpy((char *) pFindData, | |
3639 | (char *) &pSMBr->hdr.Protocol + | |
3640 | data_offset, | |
630f3f0c | 3641 | sizeof(FILE_UNIX_BASIC_INFO)); |
1da177e4 LT |
3642 | } |
3643 | } | |
3644 | cifs_buf_release(pSMB); | |
3645 | if (rc == -EAGAIN) | |
3646 | goto UnixQPathInfoRetry; | |
3647 | ||
3648 | return rc; | |
3649 | } | |
3650 | ||
1da177e4 LT |
3651 | /* xid, tcon, searchName and codepage are input parms, rest are returned */ |
3652 | int | |
3653 | CIFSFindFirst(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 | 3654 | const char *searchName, |
1da177e4 | 3655 | const struct nls_table *nls_codepage, |
50c2f753 SF |
3656 | __u16 *pnetfid, |
3657 | struct cifs_search_info *psrch_inf, int remap, const char dirsep) | |
1da177e4 LT |
3658 | { |
3659 | /* level 257 SMB_ */ | |
3660 | TRANSACTION2_FFIRST_REQ *pSMB = NULL; | |
3661 | TRANSACTION2_FFIRST_RSP *pSMBr = NULL; | |
ad7a2926 | 3662 | T2_FFIRST_RSP_PARMS *parms; |
1da177e4 LT |
3663 | int rc = 0; |
3664 | int bytes_returned = 0; | |
3665 | int name_len; | |
3666 | __u16 params, byte_count; | |
3667 | ||
b6b38f70 | 3668 | cFYI(1, "In FindFirst for %s", searchName); |
1da177e4 LT |
3669 | |
3670 | findFirstRetry: | |
3671 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3672 | (void **) &pSMBr); | |
3673 | if (rc) | |
3674 | return rc; | |
3675 | ||
3676 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3677 | name_len = | |
50c2f753 | 3678 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c SF |
3679 | PATH_MAX, nls_codepage, remap); |
3680 | /* We can not add the asterik earlier in case | |
3681 | it got remapped to 0xF03A as if it were part of the | |
3682 | directory name instead of a wildcard */ | |
1da177e4 | 3683 | name_len *= 2; |
ac67055e | 3684 | pSMB->FileName[name_len] = dirsep; |
737b758c SF |
3685 | pSMB->FileName[name_len+1] = 0; |
3686 | pSMB->FileName[name_len+2] = '*'; | |
3687 | pSMB->FileName[name_len+3] = 0; | |
3688 | name_len += 4; /* now the trailing null */ | |
1da177e4 LT |
3689 | pSMB->FileName[name_len] = 0; /* null terminate just in case */ |
3690 | pSMB->FileName[name_len+1] = 0; | |
737b758c | 3691 | name_len += 2; |
1da177e4 LT |
3692 | } else { /* BB add check for overrun of SMB buf BB */ |
3693 | name_len = strnlen(searchName, PATH_MAX); | |
1da177e4 | 3694 | /* BB fix here and in unicode clause above ie |
790fe579 | 3695 | if (name_len > buffersize-header) |
1da177e4 LT |
3696 | free buffer exit; BB */ |
3697 | strncpy(pSMB->FileName, searchName, name_len); | |
ac67055e | 3698 | pSMB->FileName[name_len] = dirsep; |
68575476 SF |
3699 | pSMB->FileName[name_len+1] = '*'; |
3700 | pSMB->FileName[name_len+2] = 0; | |
3701 | name_len += 3; | |
1da177e4 LT |
3702 | } |
3703 | ||
3704 | params = 12 + name_len /* includes null */ ; | |
3705 | pSMB->TotalDataCount = 0; /* no EAs */ | |
3706 | pSMB->MaxParameterCount = cpu_to_le16(10); | |
3707 | pSMB->MaxDataCount = cpu_to_le16((tcon->ses->server->maxBuf - | |
3708 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
3709 | pSMB->MaxSetupCount = 0; | |
3710 | pSMB->Reserved = 0; | |
3711 | pSMB->Flags = 0; | |
3712 | pSMB->Timeout = 0; | |
3713 | pSMB->Reserved2 = 0; | |
3714 | byte_count = params + 1 /* pad */ ; | |
3715 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3716 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3717 | pSMB->ParameterOffset = cpu_to_le16( | |
88274815 SF |
3718 | offsetof(struct smb_com_transaction2_ffirst_req, SearchAttributes) |
3719 | - 4); | |
1da177e4 LT |
3720 | pSMB->DataCount = 0; |
3721 | pSMB->DataOffset = 0; | |
3722 | pSMB->SetupCount = 1; /* one byte, no need to make endian neutral */ | |
3723 | pSMB->Reserved3 = 0; | |
3724 | pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_FIRST); | |
3725 | pSMB->SearchAttributes = | |
3726 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | | |
3727 | ATTR_DIRECTORY); | |
50c2f753 SF |
3728 | pSMB->SearchCount = cpu_to_le16(CIFSMaxBufSize/sizeof(FILE_UNIX_INFO)); |
3729 | pSMB->SearchFlags = cpu_to_le16(CIFS_SEARCH_CLOSE_AT_END | | |
1da177e4 LT |
3730 | CIFS_SEARCH_RETURN_RESUME); |
3731 | pSMB->InformationLevel = cpu_to_le16(psrch_inf->info_level); | |
3732 | ||
3733 | /* BB what should we set StorageType to? Does it matter? BB */ | |
3734 | pSMB->SearchStorageType = 0; | |
3735 | pSMB->hdr.smb_buf_length += byte_count; | |
3736 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3737 | ||
3738 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3739 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 3740 | cifs_stats_inc(&tcon->num_ffirst); |
1da177e4 | 3741 | |
88274815 SF |
3742 | if (rc) {/* BB add logic to retry regular search if Unix search |
3743 | rejected unexpectedly by server */ | |
1da177e4 | 3744 | /* BB Add code to handle unsupported level rc */ |
b6b38f70 | 3745 | cFYI(1, "Error in FindFirst = %d", rc); |
1982c344 | 3746 | |
88274815 | 3747 | cifs_buf_release(pSMB); |
1da177e4 LT |
3748 | |
3749 | /* BB eventually could optimize out free and realloc of buf */ | |
3750 | /* for this case */ | |
3751 | if (rc == -EAGAIN) | |
3752 | goto findFirstRetry; | |
3753 | } else { /* decode response */ | |
3754 | /* BB remember to free buffer if error BB */ | |
3755 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
790fe579 | 3756 | if (rc == 0) { |
b77d753c SF |
3757 | unsigned int lnoff; |
3758 | ||
1da177e4 | 3759 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) |
4b18f2a9 | 3760 | psrch_inf->unicode = true; |
1da177e4 | 3761 | else |
4b18f2a9 | 3762 | psrch_inf->unicode = false; |
1da177e4 LT |
3763 | |
3764 | psrch_inf->ntwrk_buf_start = (char *)pSMBr; | |
d47d7c1a | 3765 | psrch_inf->smallBuf = 0; |
50c2f753 SF |
3766 | psrch_inf->srch_entries_start = |
3767 | (char *) &pSMBr->hdr.Protocol + | |
1da177e4 | 3768 | le16_to_cpu(pSMBr->t2.DataOffset); |
1da177e4 LT |
3769 | parms = (T2_FFIRST_RSP_PARMS *)((char *) &pSMBr->hdr.Protocol + |
3770 | le16_to_cpu(pSMBr->t2.ParameterOffset)); | |
3771 | ||
790fe579 | 3772 | if (parms->EndofSearch) |
4b18f2a9 | 3773 | psrch_inf->endOfSearch = true; |
1da177e4 | 3774 | else |
4b18f2a9 | 3775 | psrch_inf->endOfSearch = false; |
1da177e4 | 3776 | |
50c2f753 SF |
3777 | psrch_inf->entries_in_buffer = |
3778 | le16_to_cpu(parms->SearchCount); | |
60808233 | 3779 | psrch_inf->index_of_last_entry = 2 /* skip . and .. */ + |
1da177e4 | 3780 | psrch_inf->entries_in_buffer; |
b77d753c SF |
3781 | lnoff = le16_to_cpu(parms->LastNameOffset); |
3782 | if (tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE < | |
3783 | lnoff) { | |
b6b38f70 | 3784 | cERROR(1, "ignoring corrupt resume name"); |
b77d753c SF |
3785 | psrch_inf->last_entry = NULL; |
3786 | return rc; | |
3787 | } | |
3788 | ||
0752f152 | 3789 | psrch_inf->last_entry = psrch_inf->srch_entries_start + |
b77d753c SF |
3790 | lnoff; |
3791 | ||
1da177e4 LT |
3792 | *pnetfid = parms->SearchHandle; |
3793 | } else { | |
3794 | cifs_buf_release(pSMB); | |
3795 | } | |
3796 | } | |
3797 | ||
3798 | return rc; | |
3799 | } | |
3800 | ||
3801 | int CIFSFindNext(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 | 3802 | __u16 searchHandle, struct cifs_search_info *psrch_inf) |
1da177e4 LT |
3803 | { |
3804 | TRANSACTION2_FNEXT_REQ *pSMB = NULL; | |
3805 | TRANSACTION2_FNEXT_RSP *pSMBr = NULL; | |
ad7a2926 | 3806 | T2_FNEXT_RSP_PARMS *parms; |
1da177e4 LT |
3807 | char *response_data; |
3808 | int rc = 0; | |
3809 | int bytes_returned, name_len; | |
3810 | __u16 params, byte_count; | |
3811 | ||
b6b38f70 | 3812 | cFYI(1, "In FindNext"); |
1da177e4 | 3813 | |
4b18f2a9 | 3814 | if (psrch_inf->endOfSearch) |
1da177e4 LT |
3815 | return -ENOENT; |
3816 | ||
3817 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3818 | (void **) &pSMBr); | |
3819 | if (rc) | |
3820 | return rc; | |
3821 | ||
50c2f753 | 3822 | params = 14; /* includes 2 bytes of null string, converted to LE below*/ |
1da177e4 LT |
3823 | byte_count = 0; |
3824 | pSMB->TotalDataCount = 0; /* no EAs */ | |
3825 | pSMB->MaxParameterCount = cpu_to_le16(8); | |
3826 | pSMB->MaxDataCount = | |
50c2f753 SF |
3827 | cpu_to_le16((tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) & |
3828 | 0xFFFFFF00); | |
1da177e4 LT |
3829 | pSMB->MaxSetupCount = 0; |
3830 | pSMB->Reserved = 0; | |
3831 | pSMB->Flags = 0; | |
3832 | pSMB->Timeout = 0; | |
3833 | pSMB->Reserved2 = 0; | |
3834 | pSMB->ParameterOffset = cpu_to_le16( | |
3835 | offsetof(struct smb_com_transaction2_fnext_req,SearchHandle) - 4); | |
3836 | pSMB->DataCount = 0; | |
3837 | pSMB->DataOffset = 0; | |
3838 | pSMB->SetupCount = 1; | |
3839 | pSMB->Reserved3 = 0; | |
3840 | pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_NEXT); | |
3841 | pSMB->SearchHandle = searchHandle; /* always kept as le */ | |
3842 | pSMB->SearchCount = | |
630f3f0c | 3843 | cpu_to_le16(CIFSMaxBufSize / sizeof(FILE_UNIX_INFO)); |
1da177e4 LT |
3844 | pSMB->InformationLevel = cpu_to_le16(psrch_inf->info_level); |
3845 | pSMB->ResumeKey = psrch_inf->resume_key; | |
3846 | pSMB->SearchFlags = | |
3847 | cpu_to_le16(CIFS_SEARCH_CLOSE_AT_END | CIFS_SEARCH_RETURN_RESUME); | |
3848 | ||
3849 | name_len = psrch_inf->resume_name_len; | |
3850 | params += name_len; | |
790fe579 | 3851 | if (name_len < PATH_MAX) { |
1da177e4 LT |
3852 | memcpy(pSMB->ResumeFileName, psrch_inf->presume_name, name_len); |
3853 | byte_count += name_len; | |
ef6724e3 SF |
3854 | /* 14 byte parm len above enough for 2 byte null terminator */ |
3855 | pSMB->ResumeFileName[name_len] = 0; | |
3856 | pSMB->ResumeFileName[name_len+1] = 0; | |
1da177e4 LT |
3857 | } else { |
3858 | rc = -EINVAL; | |
3859 | goto FNext2_err_exit; | |
3860 | } | |
3861 | byte_count = params + 1 /* pad */ ; | |
3862 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3863 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3864 | pSMB->hdr.smb_buf_length += byte_count; | |
3865 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
50c2f753 | 3866 | |
1da177e4 LT |
3867 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
3868 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 3869 | cifs_stats_inc(&tcon->num_fnext); |
1da177e4 LT |
3870 | if (rc) { |
3871 | if (rc == -EBADF) { | |
4b18f2a9 | 3872 | psrch_inf->endOfSearch = true; |
6353450a | 3873 | cifs_buf_release(pSMB); |
50c2f753 | 3874 | rc = 0; /* search probably was closed at end of search*/ |
1da177e4 | 3875 | } else |
b6b38f70 | 3876 | cFYI(1, "FindNext returned = %d", rc); |
1da177e4 LT |
3877 | } else { /* decode response */ |
3878 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
50c2f753 | 3879 | |
790fe579 | 3880 | if (rc == 0) { |
b77d753c SF |
3881 | unsigned int lnoff; |
3882 | ||
1da177e4 LT |
3883 | /* BB fixme add lock for file (srch_info) struct here */ |
3884 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) | |
4b18f2a9 | 3885 | psrch_inf->unicode = true; |
1da177e4 | 3886 | else |
4b18f2a9 | 3887 | psrch_inf->unicode = false; |
1da177e4 LT |
3888 | response_data = (char *) &pSMBr->hdr.Protocol + |
3889 | le16_to_cpu(pSMBr->t2.ParameterOffset); | |
3890 | parms = (T2_FNEXT_RSP_PARMS *)response_data; | |
3891 | response_data = (char *)&pSMBr->hdr.Protocol + | |
3892 | le16_to_cpu(pSMBr->t2.DataOffset); | |
790fe579 | 3893 | if (psrch_inf->smallBuf) |
d47d7c1a SF |
3894 | cifs_small_buf_release( |
3895 | psrch_inf->ntwrk_buf_start); | |
3896 | else | |
3897 | cifs_buf_release(psrch_inf->ntwrk_buf_start); | |
1da177e4 LT |
3898 | psrch_inf->srch_entries_start = response_data; |
3899 | psrch_inf->ntwrk_buf_start = (char *)pSMB; | |
d47d7c1a | 3900 | psrch_inf->smallBuf = 0; |
790fe579 | 3901 | if (parms->EndofSearch) |
4b18f2a9 | 3902 | psrch_inf->endOfSearch = true; |
1da177e4 | 3903 | else |
4b18f2a9 | 3904 | psrch_inf->endOfSearch = false; |
50c2f753 SF |
3905 | psrch_inf->entries_in_buffer = |
3906 | le16_to_cpu(parms->SearchCount); | |
1da177e4 LT |
3907 | psrch_inf->index_of_last_entry += |
3908 | psrch_inf->entries_in_buffer; | |
b77d753c SF |
3909 | lnoff = le16_to_cpu(parms->LastNameOffset); |
3910 | if (tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE < | |
3911 | lnoff) { | |
b6b38f70 | 3912 | cERROR(1, "ignoring corrupt resume name"); |
b77d753c SF |
3913 | psrch_inf->last_entry = NULL; |
3914 | return rc; | |
3915 | } else | |
3916 | psrch_inf->last_entry = | |
3917 | psrch_inf->srch_entries_start + lnoff; | |
3918 | ||
b6b38f70 JP |
3919 | /* cFYI(1, "fnxt2 entries in buf %d index_of_last %d", |
3920 | psrch_inf->entries_in_buffer, psrch_inf->index_of_last_entry); */ | |
1da177e4 LT |
3921 | |
3922 | /* BB fixme add unlock here */ | |
3923 | } | |
3924 | ||
3925 | } | |
3926 | ||
3927 | /* BB On error, should we leave previous search buf (and count and | |
3928 | last entry fields) intact or free the previous one? */ | |
3929 | ||
3930 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
3931 | since file handle passed in no longer valid */ | |
3932 | FNext2_err_exit: | |
3933 | if (rc != 0) | |
3934 | cifs_buf_release(pSMB); | |
1da177e4 LT |
3935 | return rc; |
3936 | } | |
3937 | ||
3938 | int | |
50c2f753 SF |
3939 | CIFSFindClose(const int xid, struct cifsTconInfo *tcon, |
3940 | const __u16 searchHandle) | |
1da177e4 LT |
3941 | { |
3942 | int rc = 0; | |
3943 | FINDCLOSE_REQ *pSMB = NULL; | |
1da177e4 | 3944 | |
b6b38f70 | 3945 | cFYI(1, "In CIFSSMBFindClose"); |
1da177e4 LT |
3946 | rc = small_smb_init(SMB_COM_FIND_CLOSE2, 1, tcon, (void **)&pSMB); |
3947 | ||
3948 | /* no sense returning error if session restarted | |
3949 | as file handle has been closed */ | |
790fe579 | 3950 | if (rc == -EAGAIN) |
1da177e4 LT |
3951 | return 0; |
3952 | if (rc) | |
3953 | return rc; | |
3954 | ||
1da177e4 LT |
3955 | pSMB->FileID = searchHandle; |
3956 | pSMB->ByteCount = 0; | |
133672ef | 3957 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); |
ad7a2926 | 3958 | if (rc) |
b6b38f70 | 3959 | cERROR(1, "Send error in FindClose = %d", rc); |
ad7a2926 | 3960 | |
a4544347 | 3961 | cifs_stats_inc(&tcon->num_fclose); |
1da177e4 LT |
3962 | |
3963 | /* Since session is dead, search handle closed on server already */ | |
3964 | if (rc == -EAGAIN) | |
3965 | rc = 0; | |
3966 | ||
3967 | return rc; | |
3968 | } | |
3969 | ||
1da177e4 LT |
3970 | int |
3971 | CIFSGetSrvInodeNumber(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 | 3972 | const unsigned char *searchName, |
ad7a2926 | 3973 | __u64 *inode_number, |
50c2f753 | 3974 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
3975 | { |
3976 | int rc = 0; | |
3977 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
3978 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
3979 | int name_len, bytes_returned; | |
3980 | __u16 params, byte_count; | |
3981 | ||
b6b38f70 | 3982 | cFYI(1, "In GetSrvInodeNum for %s", searchName); |
790fe579 | 3983 | if (tcon == NULL) |
50c2f753 | 3984 | return -ENODEV; |
1da177e4 LT |
3985 | |
3986 | GetInodeNumberRetry: | |
3987 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
50c2f753 | 3988 | (void **) &pSMBr); |
1da177e4 LT |
3989 | if (rc) |
3990 | return rc; | |
3991 | ||
1da177e4 LT |
3992 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
3993 | name_len = | |
b1a45695 | 3994 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
50c2f753 | 3995 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
3996 | name_len++; /* trailing null */ |
3997 | name_len *= 2; | |
50c2f753 | 3998 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
3999 | name_len = strnlen(searchName, PATH_MAX); |
4000 | name_len++; /* trailing null */ | |
4001 | strncpy(pSMB->FileName, searchName, name_len); | |
4002 | } | |
4003 | ||
4004 | params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ; | |
4005 | pSMB->TotalDataCount = 0; | |
4006 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4007 | /* BB find exact max data count below from sess structure BB */ | |
4008 | pSMB->MaxDataCount = cpu_to_le16(4000); | |
4009 | pSMB->MaxSetupCount = 0; | |
4010 | pSMB->Reserved = 0; | |
4011 | pSMB->Flags = 0; | |
4012 | pSMB->Timeout = 0; | |
4013 | pSMB->Reserved2 = 0; | |
4014 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 4015 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
1da177e4 LT |
4016 | pSMB->DataCount = 0; |
4017 | pSMB->DataOffset = 0; | |
4018 | pSMB->SetupCount = 1; | |
4019 | pSMB->Reserved3 = 0; | |
4020 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
4021 | byte_count = params + 1 /* pad */ ; | |
4022 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
4023 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
4024 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_INTERNAL_INFO); | |
4025 | pSMB->Reserved4 = 0; | |
4026 | pSMB->hdr.smb_buf_length += byte_count; | |
4027 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4028 | ||
4029 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4030 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4031 | if (rc) { | |
b6b38f70 | 4032 | cFYI(1, "error %d in QueryInternalInfo", rc); |
1da177e4 LT |
4033 | } else { |
4034 | /* decode response */ | |
4035 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4036 | if (rc || (pSMBr->ByteCount < 2)) | |
4037 | /* BB also check enough total bytes returned */ | |
4038 | /* If rc should we check for EOPNOSUPP and | |
4039 | disable the srvino flag? or in caller? */ | |
4040 | rc = -EIO; /* bad smb */ | |
50c2f753 | 4041 | else { |
1da177e4 LT |
4042 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
4043 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); | |
50c2f753 | 4044 | struct file_internal_info *pfinfo; |
1da177e4 | 4045 | /* BB Do we need a cast or hash here ? */ |
790fe579 | 4046 | if (count < 8) { |
b6b38f70 | 4047 | cFYI(1, "Illegal size ret in QryIntrnlInf"); |
1da177e4 LT |
4048 | rc = -EIO; |
4049 | goto GetInodeNumOut; | |
4050 | } | |
4051 | pfinfo = (struct file_internal_info *) | |
4052 | (data_offset + (char *) &pSMBr->hdr.Protocol); | |
85a6dac5 | 4053 | *inode_number = le64_to_cpu(pfinfo->UniqueId); |
1da177e4 LT |
4054 | } |
4055 | } | |
4056 | GetInodeNumOut: | |
4057 | cifs_buf_release(pSMB); | |
4058 | if (rc == -EAGAIN) | |
4059 | goto GetInodeNumberRetry; | |
4060 | return rc; | |
4061 | } | |
1da177e4 | 4062 | |
fec4585f IM |
4063 | /* parses DFS refferal V3 structure |
4064 | * caller is responsible for freeing target_nodes | |
4065 | * returns: | |
4066 | * on success - 0 | |
4067 | * on failure - errno | |
4068 | */ | |
4069 | static int | |
a1fe78f1 | 4070 | parse_DFS_referrals(TRANSACTION2_GET_DFS_REFER_RSP *pSMBr, |
fec4585f IM |
4071 | unsigned int *num_of_nodes, |
4072 | struct dfs_info3_param **target_nodes, | |
2c55608f IM |
4073 | const struct nls_table *nls_codepage, int remap, |
4074 | const char *searchName) | |
fec4585f IM |
4075 | { |
4076 | int i, rc = 0; | |
4077 | char *data_end; | |
4078 | bool is_unicode; | |
4079 | struct dfs_referral_level_3 *ref; | |
4080 | ||
5ca33c6a HH |
4081 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) |
4082 | is_unicode = true; | |
4083 | else | |
4084 | is_unicode = false; | |
fec4585f IM |
4085 | *num_of_nodes = le16_to_cpu(pSMBr->NumberOfReferrals); |
4086 | ||
4087 | if (*num_of_nodes < 1) { | |
b6b38f70 JP |
4088 | cERROR(1, "num_referrals: must be at least > 0," |
4089 | "but we get num_referrals = %d\n", *num_of_nodes); | |
fec4585f | 4090 | rc = -EINVAL; |
a1fe78f1 | 4091 | goto parse_DFS_referrals_exit; |
fec4585f IM |
4092 | } |
4093 | ||
4094 | ref = (struct dfs_referral_level_3 *) &(pSMBr->referrals); | |
1d92cfd5 | 4095 | if (ref->VersionNumber != cpu_to_le16(3)) { |
b6b38f70 JP |
4096 | cERROR(1, "Referrals of V%d version are not supported," |
4097 | "should be V3", le16_to_cpu(ref->VersionNumber)); | |
fec4585f | 4098 | rc = -EINVAL; |
a1fe78f1 | 4099 | goto parse_DFS_referrals_exit; |
fec4585f IM |
4100 | } |
4101 | ||
4102 | /* get the upper boundary of the resp buffer */ | |
4103 | data_end = (char *)(&(pSMBr->PathConsumed)) + | |
4104 | le16_to_cpu(pSMBr->t2.DataCount); | |
4105 | ||
f19159dc | 4106 | cFYI(1, "num_referrals: %d dfs flags: 0x%x ...\n", |
fec4585f | 4107 | *num_of_nodes, |
b6b38f70 | 4108 | le32_to_cpu(pSMBr->DFSFlags)); |
fec4585f IM |
4109 | |
4110 | *target_nodes = kzalloc(sizeof(struct dfs_info3_param) * | |
4111 | *num_of_nodes, GFP_KERNEL); | |
4112 | if (*target_nodes == NULL) { | |
b6b38f70 | 4113 | cERROR(1, "Failed to allocate buffer for target_nodes\n"); |
fec4585f | 4114 | rc = -ENOMEM; |
a1fe78f1 | 4115 | goto parse_DFS_referrals_exit; |
fec4585f IM |
4116 | } |
4117 | ||
3ad2f3fb | 4118 | /* collect necessary data from referrals */ |
fec4585f IM |
4119 | for (i = 0; i < *num_of_nodes; i++) { |
4120 | char *temp; | |
4121 | int max_len; | |
4122 | struct dfs_info3_param *node = (*target_nodes)+i; | |
4123 | ||
0e0d2cf3 | 4124 | node->flags = le32_to_cpu(pSMBr->DFSFlags); |
2c55608f | 4125 | if (is_unicode) { |
331c3135 JL |
4126 | __le16 *tmp = kmalloc(strlen(searchName)*2 + 2, |
4127 | GFP_KERNEL); | |
2920ee2b SF |
4128 | if (tmp == NULL) { |
4129 | rc = -ENOMEM; | |
4130 | goto parse_DFS_referrals_exit; | |
4131 | } | |
2c55608f IM |
4132 | cifsConvertToUCS((__le16 *) tmp, searchName, |
4133 | PATH_MAX, nls_codepage, remap); | |
69f801fc JL |
4134 | node->path_consumed = cifs_ucs2_bytes(tmp, |
4135 | le16_to_cpu(pSMBr->PathConsumed), | |
2c55608f IM |
4136 | nls_codepage); |
4137 | kfree(tmp); | |
4138 | } else | |
4139 | node->path_consumed = le16_to_cpu(pSMBr->PathConsumed); | |
4140 | ||
fec4585f IM |
4141 | node->server_type = le16_to_cpu(ref->ServerType); |
4142 | node->ref_flag = le16_to_cpu(ref->ReferralEntryFlags); | |
4143 | ||
4144 | /* copy DfsPath */ | |
4145 | temp = (char *)ref + le16_to_cpu(ref->DfsPathOffset); | |
4146 | max_len = data_end - temp; | |
d185cda7 SF |
4147 | node->path_name = cifs_strndup_from_ucs(temp, max_len, |
4148 | is_unicode, nls_codepage); | |
d8e2f53a JL |
4149 | if (!node->path_name) { |
4150 | rc = -ENOMEM; | |
a1fe78f1 | 4151 | goto parse_DFS_referrals_exit; |
066ce689 | 4152 | } |
fec4585f IM |
4153 | |
4154 | /* copy link target UNC */ | |
4155 | temp = (char *)ref + le16_to_cpu(ref->NetworkAddressOffset); | |
4156 | max_len = data_end - temp; | |
d185cda7 SF |
4157 | node->node_name = cifs_strndup_from_ucs(temp, max_len, |
4158 | is_unicode, nls_codepage); | |
d8e2f53a JL |
4159 | if (!node->node_name) |
4160 | rc = -ENOMEM; | |
fec4585f IM |
4161 | } |
4162 | ||
a1fe78f1 | 4163 | parse_DFS_referrals_exit: |
fec4585f IM |
4164 | if (rc) { |
4165 | free_dfs_info_array(*target_nodes, *num_of_nodes); | |
4166 | *target_nodes = NULL; | |
4167 | *num_of_nodes = 0; | |
4168 | } | |
4169 | return rc; | |
4170 | } | |
4171 | ||
1da177e4 LT |
4172 | int |
4173 | CIFSGetDFSRefer(const int xid, struct cifsSesInfo *ses, | |
4174 | const unsigned char *searchName, | |
c2cf07d5 SF |
4175 | struct dfs_info3_param **target_nodes, |
4176 | unsigned int *num_of_nodes, | |
737b758c | 4177 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
4178 | { |
4179 | /* TRANS2_GET_DFS_REFERRAL */ | |
4180 | TRANSACTION2_GET_DFS_REFER_REQ *pSMB = NULL; | |
4181 | TRANSACTION2_GET_DFS_REFER_RSP *pSMBr = NULL; | |
1da177e4 LT |
4182 | int rc = 0; |
4183 | int bytes_returned; | |
4184 | int name_len; | |
1da177e4 | 4185 | __u16 params, byte_count; |
c2cf07d5 SF |
4186 | *num_of_nodes = 0; |
4187 | *target_nodes = NULL; | |
1da177e4 | 4188 | |
b6b38f70 | 4189 | cFYI(1, "In GetDFSRefer the path %s", searchName); |
1da177e4 LT |
4190 | if (ses == NULL) |
4191 | return -ENODEV; | |
4192 | getDFSRetry: | |
4193 | rc = smb_init(SMB_COM_TRANSACTION2, 15, NULL, (void **) &pSMB, | |
4194 | (void **) &pSMBr); | |
4195 | if (rc) | |
4196 | return rc; | |
50c2f753 SF |
4197 | |
4198 | /* server pointer checked in called function, | |
1982c344 SF |
4199 | but should never be null here anyway */ |
4200 | pSMB->hdr.Mid = GetNextMid(ses->server); | |
1da177e4 LT |
4201 | pSMB->hdr.Tid = ses->ipc_tid; |
4202 | pSMB->hdr.Uid = ses->Suid; | |
26f57364 | 4203 | if (ses->capabilities & CAP_STATUS32) |
1da177e4 | 4204 | pSMB->hdr.Flags2 |= SMBFLG2_ERR_STATUS; |
26f57364 | 4205 | if (ses->capabilities & CAP_DFS) |
1da177e4 | 4206 | pSMB->hdr.Flags2 |= SMBFLG2_DFS; |
1da177e4 LT |
4207 | |
4208 | if (ses->capabilities & CAP_UNICODE) { | |
4209 | pSMB->hdr.Flags2 |= SMBFLG2_UNICODE; | |
4210 | name_len = | |
b1a45695 | 4211 | cifsConvertToUCS((__le16 *) pSMB->RequestFileName, |
737b758c | 4212 | searchName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
4213 | name_len++; /* trailing null */ |
4214 | name_len *= 2; | |
50c2f753 | 4215 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
4216 | name_len = strnlen(searchName, PATH_MAX); |
4217 | name_len++; /* trailing null */ | |
4218 | strncpy(pSMB->RequestFileName, searchName, name_len); | |
4219 | } | |
4220 | ||
790fe579 SF |
4221 | if (ses->server) { |
4222 | if (ses->server->secMode & | |
1a4e15a0 SF |
4223 | (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) |
4224 | pSMB->hdr.Flags2 |= SMBFLG2_SECURITY_SIGNATURE; | |
4225 | } | |
4226 | ||
50c2f753 | 4227 | pSMB->hdr.Uid = ses->Suid; |
1a4e15a0 | 4228 | |
1da177e4 LT |
4229 | params = 2 /* level */ + name_len /*includes null */ ; |
4230 | pSMB->TotalDataCount = 0; | |
4231 | pSMB->DataCount = 0; | |
4232 | pSMB->DataOffset = 0; | |
4233 | pSMB->MaxParameterCount = 0; | |
582d21e5 SF |
4234 | /* BB find exact max SMB PDU from sess structure BB */ |
4235 | pSMB->MaxDataCount = cpu_to_le16(4000); | |
1da177e4 LT |
4236 | pSMB->MaxSetupCount = 0; |
4237 | pSMB->Reserved = 0; | |
4238 | pSMB->Flags = 0; | |
4239 | pSMB->Timeout = 0; | |
4240 | pSMB->Reserved2 = 0; | |
4241 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 4242 | struct smb_com_transaction2_get_dfs_refer_req, MaxReferralLevel) - 4); |
1da177e4 LT |
4243 | pSMB->SetupCount = 1; |
4244 | pSMB->Reserved3 = 0; | |
4245 | pSMB->SubCommand = cpu_to_le16(TRANS2_GET_DFS_REFERRAL); | |
4246 | byte_count = params + 3 /* pad */ ; | |
4247 | pSMB->ParameterCount = cpu_to_le16(params); | |
4248 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4249 | pSMB->MaxReferralLevel = cpu_to_le16(3); | |
4250 | pSMB->hdr.smb_buf_length += byte_count; | |
4251 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4252 | ||
4253 | rc = SendReceive(xid, ses, (struct smb_hdr *) pSMB, | |
4254 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4255 | if (rc) { | |
b6b38f70 | 4256 | cFYI(1, "Send error in GetDFSRefer = %d", rc); |
c2cf07d5 SF |
4257 | goto GetDFSRefExit; |
4258 | } | |
4259 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
1da177e4 | 4260 | |
c2cf07d5 | 4261 | /* BB Also check if enough total bytes returned? */ |
fec4585f | 4262 | if (rc || (pSMBr->ByteCount < 17)) { |
c2cf07d5 | 4263 | rc = -EIO; /* bad smb */ |
fec4585f IM |
4264 | goto GetDFSRefExit; |
4265 | } | |
c2cf07d5 | 4266 | |
b6b38f70 | 4267 | cFYI(1, "Decoding GetDFSRefer response BCC: %d Offset %d", |
fec4585f | 4268 | pSMBr->ByteCount, |
b6b38f70 | 4269 | le16_to_cpu(pSMBr->t2.DataOffset)); |
1da177e4 | 4270 | |
fec4585f | 4271 | /* parse returned result into more usable form */ |
a1fe78f1 | 4272 | rc = parse_DFS_referrals(pSMBr, num_of_nodes, |
2c55608f IM |
4273 | target_nodes, nls_codepage, remap, |
4274 | searchName); | |
c2cf07d5 | 4275 | |
1da177e4 | 4276 | GetDFSRefExit: |
0d817bc0 | 4277 | cifs_buf_release(pSMB); |
1da177e4 LT |
4278 | |
4279 | if (rc == -EAGAIN) | |
4280 | goto getDFSRetry; | |
4281 | ||
4282 | return rc; | |
4283 | } | |
4284 | ||
20962438 SF |
4285 | /* Query File System Info such as free space to old servers such as Win 9x */ |
4286 | int | |
4287 | SMBOldQFSInfo(const int xid, struct cifsTconInfo *tcon, struct kstatfs *FSData) | |
4288 | { | |
4289 | /* level 0x01 SMB_QUERY_FILE_SYSTEM_INFO */ | |
4290 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4291 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4292 | FILE_SYSTEM_ALLOC_INFO *response_data; | |
4293 | int rc = 0; | |
4294 | int bytes_returned = 0; | |
4295 | __u16 params, byte_count; | |
4296 | ||
b6b38f70 | 4297 | cFYI(1, "OldQFSInfo"); |
20962438 SF |
4298 | oldQFSInfoRetry: |
4299 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4300 | (void **) &pSMBr); | |
4301 | if (rc) | |
4302 | return rc; | |
20962438 SF |
4303 | |
4304 | params = 2; /* level */ | |
4305 | pSMB->TotalDataCount = 0; | |
4306 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4307 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
4308 | pSMB->MaxSetupCount = 0; | |
4309 | pSMB->Reserved = 0; | |
4310 | pSMB->Flags = 0; | |
4311 | pSMB->Timeout = 0; | |
4312 | pSMB->Reserved2 = 0; | |
4313 | byte_count = params + 1 /* pad */ ; | |
4314 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
4315 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
4316 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
4317 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
4318 | pSMB->DataCount = 0; | |
4319 | pSMB->DataOffset = 0; | |
4320 | pSMB->SetupCount = 1; | |
4321 | pSMB->Reserved3 = 0; | |
4322 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4323 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_ALLOCATION); | |
4324 | pSMB->hdr.smb_buf_length += byte_count; | |
4325 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4326 | ||
4327 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4328 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4329 | if (rc) { | |
b6b38f70 | 4330 | cFYI(1, "Send error in QFSInfo = %d", rc); |
20962438 SF |
4331 | } else { /* decode response */ |
4332 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4333 | ||
4334 | if (rc || (pSMBr->ByteCount < 18)) | |
4335 | rc = -EIO; /* bad smb */ | |
4336 | else { | |
4337 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
b6b38f70 JP |
4338 | cFYI(1, "qfsinf resp BCC: %d Offset %d", |
4339 | pSMBr->ByteCount, data_offset); | |
20962438 | 4340 | |
50c2f753 | 4341 | response_data = (FILE_SYSTEM_ALLOC_INFO *) |
20962438 SF |
4342 | (((char *) &pSMBr->hdr.Protocol) + data_offset); |
4343 | FSData->f_bsize = | |
4344 | le16_to_cpu(response_data->BytesPerSector) * | |
4345 | le32_to_cpu(response_data-> | |
4346 | SectorsPerAllocationUnit); | |
4347 | FSData->f_blocks = | |
50c2f753 | 4348 | le32_to_cpu(response_data->TotalAllocationUnits); |
20962438 SF |
4349 | FSData->f_bfree = FSData->f_bavail = |
4350 | le32_to_cpu(response_data->FreeAllocationUnits); | |
b6b38f70 JP |
4351 | cFYI(1, "Blocks: %lld Free: %lld Block size %ld", |
4352 | (unsigned long long)FSData->f_blocks, | |
4353 | (unsigned long long)FSData->f_bfree, | |
4354 | FSData->f_bsize); | |
20962438 SF |
4355 | } |
4356 | } | |
4357 | cifs_buf_release(pSMB); | |
4358 | ||
4359 | if (rc == -EAGAIN) | |
4360 | goto oldQFSInfoRetry; | |
4361 | ||
4362 | return rc; | |
4363 | } | |
4364 | ||
1da177e4 | 4365 | int |
737b758c | 4366 | CIFSSMBQFSInfo(const int xid, struct cifsTconInfo *tcon, struct kstatfs *FSData) |
1da177e4 LT |
4367 | { |
4368 | /* level 0x103 SMB_QUERY_FILE_SYSTEM_INFO */ | |
4369 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4370 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4371 | FILE_SYSTEM_INFO *response_data; | |
4372 | int rc = 0; | |
4373 | int bytes_returned = 0; | |
4374 | __u16 params, byte_count; | |
4375 | ||
b6b38f70 | 4376 | cFYI(1, "In QFSInfo"); |
1da177e4 LT |
4377 | QFSInfoRetry: |
4378 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4379 | (void **) &pSMBr); | |
4380 | if (rc) | |
4381 | return rc; | |
4382 | ||
4383 | params = 2; /* level */ | |
4384 | pSMB->TotalDataCount = 0; | |
4385 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
20962438 | 4386 | pSMB->MaxDataCount = cpu_to_le16(1000); |
1da177e4 LT |
4387 | pSMB->MaxSetupCount = 0; |
4388 | pSMB->Reserved = 0; | |
4389 | pSMB->Flags = 0; | |
4390 | pSMB->Timeout = 0; | |
4391 | pSMB->Reserved2 = 0; | |
4392 | byte_count = params + 1 /* pad */ ; | |
4393 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
4394 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
4395 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 4396 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); |
1da177e4 LT |
4397 | pSMB->DataCount = 0; |
4398 | pSMB->DataOffset = 0; | |
4399 | pSMB->SetupCount = 1; | |
4400 | pSMB->Reserved3 = 0; | |
4401 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4402 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_SIZE_INFO); | |
4403 | pSMB->hdr.smb_buf_length += byte_count; | |
4404 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4405 | ||
4406 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4407 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4408 | if (rc) { | |
b6b38f70 | 4409 | cFYI(1, "Send error in QFSInfo = %d", rc); |
1da177e4 | 4410 | } else { /* decode response */ |
50c2f753 | 4411 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
1da177e4 | 4412 | |
20962438 | 4413 | if (rc || (pSMBr->ByteCount < 24)) |
1da177e4 LT |
4414 | rc = -EIO; /* bad smb */ |
4415 | else { | |
4416 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
1da177e4 LT |
4417 | |
4418 | response_data = | |
4419 | (FILE_SYSTEM_INFO | |
4420 | *) (((char *) &pSMBr->hdr.Protocol) + | |
4421 | data_offset); | |
4422 | FSData->f_bsize = | |
4423 | le32_to_cpu(response_data->BytesPerSector) * | |
4424 | le32_to_cpu(response_data-> | |
4425 | SectorsPerAllocationUnit); | |
4426 | FSData->f_blocks = | |
4427 | le64_to_cpu(response_data->TotalAllocationUnits); | |
4428 | FSData->f_bfree = FSData->f_bavail = | |
4429 | le64_to_cpu(response_data->FreeAllocationUnits); | |
b6b38f70 JP |
4430 | cFYI(1, "Blocks: %lld Free: %lld Block size %ld", |
4431 | (unsigned long long)FSData->f_blocks, | |
4432 | (unsigned long long)FSData->f_bfree, | |
4433 | FSData->f_bsize); | |
1da177e4 LT |
4434 | } |
4435 | } | |
4436 | cifs_buf_release(pSMB); | |
4437 | ||
4438 | if (rc == -EAGAIN) | |
4439 | goto QFSInfoRetry; | |
4440 | ||
4441 | return rc; | |
4442 | } | |
4443 | ||
4444 | int | |
737b758c | 4445 | CIFSSMBQFSAttributeInfo(const int xid, struct cifsTconInfo *tcon) |
1da177e4 LT |
4446 | { |
4447 | /* level 0x105 SMB_QUERY_FILE_SYSTEM_INFO */ | |
4448 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4449 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4450 | FILE_SYSTEM_ATTRIBUTE_INFO *response_data; | |
4451 | int rc = 0; | |
4452 | int bytes_returned = 0; | |
4453 | __u16 params, byte_count; | |
4454 | ||
b6b38f70 | 4455 | cFYI(1, "In QFSAttributeInfo"); |
1da177e4 LT |
4456 | QFSAttributeRetry: |
4457 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4458 | (void **) &pSMBr); | |
4459 | if (rc) | |
4460 | return rc; | |
4461 | ||
4462 | params = 2; /* level */ | |
4463 | pSMB->TotalDataCount = 0; | |
4464 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
582d21e5 SF |
4465 | /* BB find exact max SMB PDU from sess structure BB */ |
4466 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1da177e4 LT |
4467 | pSMB->MaxSetupCount = 0; |
4468 | pSMB->Reserved = 0; | |
4469 | pSMB->Flags = 0; | |
4470 | pSMB->Timeout = 0; | |
4471 | pSMB->Reserved2 = 0; | |
4472 | byte_count = params + 1 /* pad */ ; | |
4473 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
4474 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
4475 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 4476 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); |
1da177e4 LT |
4477 | pSMB->DataCount = 0; |
4478 | pSMB->DataOffset = 0; | |
4479 | pSMB->SetupCount = 1; | |
4480 | pSMB->Reserved3 = 0; | |
4481 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4482 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_ATTRIBUTE_INFO); | |
4483 | pSMB->hdr.smb_buf_length += byte_count; | |
4484 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4485 | ||
4486 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4487 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4488 | if (rc) { | |
b6b38f70 | 4489 | cERROR(1, "Send error in QFSAttributeInfo = %d", rc); |
1da177e4 LT |
4490 | } else { /* decode response */ |
4491 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4492 | ||
50c2f753 SF |
4493 | if (rc || (pSMBr->ByteCount < 13)) { |
4494 | /* BB also check if enough bytes returned */ | |
1da177e4 LT |
4495 | rc = -EIO; /* bad smb */ |
4496 | } else { | |
4497 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
4498 | response_data = | |
4499 | (FILE_SYSTEM_ATTRIBUTE_INFO | |
4500 | *) (((char *) &pSMBr->hdr.Protocol) + | |
4501 | data_offset); | |
4502 | memcpy(&tcon->fsAttrInfo, response_data, | |
26f57364 | 4503 | sizeof(FILE_SYSTEM_ATTRIBUTE_INFO)); |
1da177e4 LT |
4504 | } |
4505 | } | |
4506 | cifs_buf_release(pSMB); | |
4507 | ||
4508 | if (rc == -EAGAIN) | |
4509 | goto QFSAttributeRetry; | |
4510 | ||
4511 | return rc; | |
4512 | } | |
4513 | ||
4514 | int | |
737b758c | 4515 | CIFSSMBQFSDeviceInfo(const int xid, struct cifsTconInfo *tcon) |
1da177e4 LT |
4516 | { |
4517 | /* level 0x104 SMB_QUERY_FILE_SYSTEM_INFO */ | |
4518 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4519 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4520 | FILE_SYSTEM_DEVICE_INFO *response_data; | |
4521 | int rc = 0; | |
4522 | int bytes_returned = 0; | |
4523 | __u16 params, byte_count; | |
4524 | ||
b6b38f70 | 4525 | cFYI(1, "In QFSDeviceInfo"); |
1da177e4 LT |
4526 | QFSDeviceRetry: |
4527 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4528 | (void **) &pSMBr); | |
4529 | if (rc) | |
4530 | return rc; | |
4531 | ||
4532 | params = 2; /* level */ | |
4533 | pSMB->TotalDataCount = 0; | |
4534 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
582d21e5 SF |
4535 | /* BB find exact max SMB PDU from sess structure BB */ |
4536 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1da177e4 LT |
4537 | pSMB->MaxSetupCount = 0; |
4538 | pSMB->Reserved = 0; | |
4539 | pSMB->Flags = 0; | |
4540 | pSMB->Timeout = 0; | |
4541 | pSMB->Reserved2 = 0; | |
4542 | byte_count = params + 1 /* pad */ ; | |
4543 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
4544 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
4545 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 4546 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); |
1da177e4 LT |
4547 | |
4548 | pSMB->DataCount = 0; | |
4549 | pSMB->DataOffset = 0; | |
4550 | pSMB->SetupCount = 1; | |
4551 | pSMB->Reserved3 = 0; | |
4552 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4553 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_DEVICE_INFO); | |
4554 | pSMB->hdr.smb_buf_length += byte_count; | |
4555 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4556 | ||
4557 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4558 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4559 | if (rc) { | |
b6b38f70 | 4560 | cFYI(1, "Send error in QFSDeviceInfo = %d", rc); |
1da177e4 LT |
4561 | } else { /* decode response */ |
4562 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4563 | ||
630f3f0c | 4564 | if (rc || (pSMBr->ByteCount < sizeof(FILE_SYSTEM_DEVICE_INFO))) |
1da177e4 LT |
4565 | rc = -EIO; /* bad smb */ |
4566 | else { | |
4567 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
4568 | response_data = | |
737b758c SF |
4569 | (FILE_SYSTEM_DEVICE_INFO *) |
4570 | (((char *) &pSMBr->hdr.Protocol) + | |
1da177e4 LT |
4571 | data_offset); |
4572 | memcpy(&tcon->fsDevInfo, response_data, | |
26f57364 | 4573 | sizeof(FILE_SYSTEM_DEVICE_INFO)); |
1da177e4 LT |
4574 | } |
4575 | } | |
4576 | cifs_buf_release(pSMB); | |
4577 | ||
4578 | if (rc == -EAGAIN) | |
4579 | goto QFSDeviceRetry; | |
4580 | ||
4581 | return rc; | |
4582 | } | |
4583 | ||
4584 | int | |
737b758c | 4585 | CIFSSMBQFSUnixInfo(const int xid, struct cifsTconInfo *tcon) |
1da177e4 LT |
4586 | { |
4587 | /* level 0x200 SMB_QUERY_CIFS_UNIX_INFO */ | |
4588 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4589 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4590 | FILE_SYSTEM_UNIX_INFO *response_data; | |
4591 | int rc = 0; | |
4592 | int bytes_returned = 0; | |
4593 | __u16 params, byte_count; | |
4594 | ||
b6b38f70 | 4595 | cFYI(1, "In QFSUnixInfo"); |
1da177e4 | 4596 | QFSUnixRetry: |
f569599a JL |
4597 | rc = smb_init_no_reconnect(SMB_COM_TRANSACTION2, 15, tcon, |
4598 | (void **) &pSMB, (void **) &pSMBr); | |
1da177e4 LT |
4599 | if (rc) |
4600 | return rc; | |
4601 | ||
4602 | params = 2; /* level */ | |
4603 | pSMB->TotalDataCount = 0; | |
4604 | pSMB->DataCount = 0; | |
4605 | pSMB->DataOffset = 0; | |
4606 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
582d21e5 SF |
4607 | /* BB find exact max SMB PDU from sess structure BB */ |
4608 | pSMB->MaxDataCount = cpu_to_le16(100); | |
1da177e4 LT |
4609 | pSMB->MaxSetupCount = 0; |
4610 | pSMB->Reserved = 0; | |
4611 | pSMB->Flags = 0; | |
4612 | pSMB->Timeout = 0; | |
4613 | pSMB->Reserved2 = 0; | |
4614 | byte_count = params + 1 /* pad */ ; | |
4615 | pSMB->ParameterCount = cpu_to_le16(params); | |
4616 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
50c2f753 SF |
4617 | pSMB->ParameterOffset = cpu_to_le16(offsetof(struct |
4618 | smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
1da177e4 LT |
4619 | pSMB->SetupCount = 1; |
4620 | pSMB->Reserved3 = 0; | |
4621 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4622 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_CIFS_UNIX_INFO); | |
4623 | pSMB->hdr.smb_buf_length += byte_count; | |
4624 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4625 | ||
4626 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4627 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4628 | if (rc) { | |
b6b38f70 | 4629 | cERROR(1, "Send error in QFSUnixInfo = %d", rc); |
1da177e4 LT |
4630 | } else { /* decode response */ |
4631 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4632 | ||
4633 | if (rc || (pSMBr->ByteCount < 13)) { | |
4634 | rc = -EIO; /* bad smb */ | |
4635 | } else { | |
4636 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
4637 | response_data = | |
4638 | (FILE_SYSTEM_UNIX_INFO | |
4639 | *) (((char *) &pSMBr->hdr.Protocol) + | |
4640 | data_offset); | |
4641 | memcpy(&tcon->fsUnixInfo, response_data, | |
26f57364 | 4642 | sizeof(FILE_SYSTEM_UNIX_INFO)); |
1da177e4 LT |
4643 | } |
4644 | } | |
4645 | cifs_buf_release(pSMB); | |
4646 | ||
4647 | if (rc == -EAGAIN) | |
4648 | goto QFSUnixRetry; | |
4649 | ||
4650 | ||
4651 | return rc; | |
4652 | } | |
4653 | ||
ac67055e | 4654 | int |
45abc6ee | 4655 | CIFSSMBSetFSUnixInfo(const int xid, struct cifsTconInfo *tcon, __u64 cap) |
ac67055e JA |
4656 | { |
4657 | /* level 0x200 SMB_SET_CIFS_UNIX_INFO */ | |
4658 | TRANSACTION2_SETFSI_REQ *pSMB = NULL; | |
4659 | TRANSACTION2_SETFSI_RSP *pSMBr = NULL; | |
4660 | int rc = 0; | |
4661 | int bytes_returned = 0; | |
4662 | __u16 params, param_offset, offset, byte_count; | |
4663 | ||
b6b38f70 | 4664 | cFYI(1, "In SETFSUnixInfo"); |
ac67055e | 4665 | SETFSUnixRetry: |
f26282c9 | 4666 | /* BB switch to small buf init to save memory */ |
f569599a JL |
4667 | rc = smb_init_no_reconnect(SMB_COM_TRANSACTION2, 15, tcon, |
4668 | (void **) &pSMB, (void **) &pSMBr); | |
ac67055e JA |
4669 | if (rc) |
4670 | return rc; | |
4671 | ||
4672 | params = 4; /* 2 bytes zero followed by info level. */ | |
4673 | pSMB->MaxSetupCount = 0; | |
4674 | pSMB->Reserved = 0; | |
4675 | pSMB->Flags = 0; | |
4676 | pSMB->Timeout = 0; | |
4677 | pSMB->Reserved2 = 0; | |
50c2f753 SF |
4678 | param_offset = offsetof(struct smb_com_transaction2_setfsi_req, FileNum) |
4679 | - 4; | |
ac67055e JA |
4680 | offset = param_offset + params; |
4681 | ||
4682 | pSMB->MaxParameterCount = cpu_to_le16(4); | |
582d21e5 SF |
4683 | /* BB find exact max SMB PDU from sess structure BB */ |
4684 | pSMB->MaxDataCount = cpu_to_le16(100); | |
ac67055e JA |
4685 | pSMB->SetupCount = 1; |
4686 | pSMB->Reserved3 = 0; | |
4687 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FS_INFORMATION); | |
4688 | byte_count = 1 /* pad */ + params + 12; | |
4689 | ||
4690 | pSMB->DataCount = cpu_to_le16(12); | |
4691 | pSMB->ParameterCount = cpu_to_le16(params); | |
4692 | pSMB->TotalDataCount = pSMB->DataCount; | |
4693 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4694 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4695 | pSMB->DataOffset = cpu_to_le16(offset); | |
4696 | ||
4697 | /* Params. */ | |
4698 | pSMB->FileNum = 0; | |
4699 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_CIFS_UNIX_INFO); | |
4700 | ||
4701 | /* Data. */ | |
4702 | pSMB->ClientUnixMajor = cpu_to_le16(CIFS_UNIX_MAJOR_VERSION); | |
4703 | pSMB->ClientUnixMinor = cpu_to_le16(CIFS_UNIX_MINOR_VERSION); | |
4704 | pSMB->ClientUnixCap = cpu_to_le64(cap); | |
4705 | ||
4706 | pSMB->hdr.smb_buf_length += byte_count; | |
4707 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4708 | ||
4709 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4710 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4711 | if (rc) { | |
b6b38f70 | 4712 | cERROR(1, "Send error in SETFSUnixInfo = %d", rc); |
ac67055e JA |
4713 | } else { /* decode response */ |
4714 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
ad7a2926 | 4715 | if (rc) |
ac67055e | 4716 | rc = -EIO; /* bad smb */ |
ac67055e JA |
4717 | } |
4718 | cifs_buf_release(pSMB); | |
4719 | ||
4720 | if (rc == -EAGAIN) | |
4721 | goto SETFSUnixRetry; | |
4722 | ||
4723 | return rc; | |
4724 | } | |
4725 | ||
4726 | ||
1da177e4 LT |
4727 | |
4728 | int | |
4729 | CIFSSMBQFSPosixInfo(const int xid, struct cifsTconInfo *tcon, | |
737b758c | 4730 | struct kstatfs *FSData) |
1da177e4 LT |
4731 | { |
4732 | /* level 0x201 SMB_QUERY_CIFS_POSIX_INFO */ | |
4733 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4734 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4735 | FILE_SYSTEM_POSIX_INFO *response_data; | |
4736 | int rc = 0; | |
4737 | int bytes_returned = 0; | |
4738 | __u16 params, byte_count; | |
4739 | ||
b6b38f70 | 4740 | cFYI(1, "In QFSPosixInfo"); |
1da177e4 LT |
4741 | QFSPosixRetry: |
4742 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4743 | (void **) &pSMBr); | |
4744 | if (rc) | |
4745 | return rc; | |
4746 | ||
4747 | params = 2; /* level */ | |
4748 | pSMB->TotalDataCount = 0; | |
4749 | pSMB->DataCount = 0; | |
4750 | pSMB->DataOffset = 0; | |
4751 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
582d21e5 SF |
4752 | /* BB find exact max SMB PDU from sess structure BB */ |
4753 | pSMB->MaxDataCount = cpu_to_le16(100); | |
1da177e4 LT |
4754 | pSMB->MaxSetupCount = 0; |
4755 | pSMB->Reserved = 0; | |
4756 | pSMB->Flags = 0; | |
4757 | pSMB->Timeout = 0; | |
4758 | pSMB->Reserved2 = 0; | |
4759 | byte_count = params + 1 /* pad */ ; | |
4760 | pSMB->ParameterCount = cpu_to_le16(params); | |
4761 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
50c2f753 SF |
4762 | pSMB->ParameterOffset = cpu_to_le16(offsetof(struct |
4763 | smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
1da177e4 LT |
4764 | pSMB->SetupCount = 1; |
4765 | pSMB->Reserved3 = 0; | |
4766 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4767 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_POSIX_FS_INFO); | |
4768 | pSMB->hdr.smb_buf_length += byte_count; | |
4769 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4770 | ||
4771 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4772 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4773 | if (rc) { | |
b6b38f70 | 4774 | cFYI(1, "Send error in QFSUnixInfo = %d", rc); |
1da177e4 LT |
4775 | } else { /* decode response */ |
4776 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4777 | ||
4778 | if (rc || (pSMBr->ByteCount < 13)) { | |
4779 | rc = -EIO; /* bad smb */ | |
4780 | } else { | |
4781 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
4782 | response_data = | |
4783 | (FILE_SYSTEM_POSIX_INFO | |
4784 | *) (((char *) &pSMBr->hdr.Protocol) + | |
4785 | data_offset); | |
4786 | FSData->f_bsize = | |
4787 | le32_to_cpu(response_data->BlockSize); | |
4788 | FSData->f_blocks = | |
4789 | le64_to_cpu(response_data->TotalBlocks); | |
4790 | FSData->f_bfree = | |
4791 | le64_to_cpu(response_data->BlocksAvail); | |
790fe579 | 4792 | if (response_data->UserBlocksAvail == cpu_to_le64(-1)) { |
1da177e4 LT |
4793 | FSData->f_bavail = FSData->f_bfree; |
4794 | } else { | |
4795 | FSData->f_bavail = | |
50c2f753 | 4796 | le64_to_cpu(response_data->UserBlocksAvail); |
1da177e4 | 4797 | } |
790fe579 | 4798 | if (response_data->TotalFileNodes != cpu_to_le64(-1)) |
1da177e4 | 4799 | FSData->f_files = |
50c2f753 | 4800 | le64_to_cpu(response_data->TotalFileNodes); |
790fe579 | 4801 | if (response_data->FreeFileNodes != cpu_to_le64(-1)) |
1da177e4 | 4802 | FSData->f_ffree = |
50c2f753 | 4803 | le64_to_cpu(response_data->FreeFileNodes); |
1da177e4 LT |
4804 | } |
4805 | } | |
4806 | cifs_buf_release(pSMB); | |
4807 | ||
4808 | if (rc == -EAGAIN) | |
4809 | goto QFSPosixRetry; | |
4810 | ||
4811 | return rc; | |
4812 | } | |
4813 | ||
4814 | ||
50c2f753 SF |
4815 | /* We can not use write of zero bytes trick to |
4816 | set file size due to need for large file support. Also note that | |
4817 | this SetPathInfo is preferred to SetFileInfo based method in next | |
1da177e4 LT |
4818 | routine which is only needed to work around a sharing violation bug |
4819 | in Samba which this routine can run into */ | |
4820 | ||
4821 | int | |
4822 | CIFSSMBSetEOF(const int xid, struct cifsTconInfo *tcon, const char *fileName, | |
4b18f2a9 | 4823 | __u64 size, bool SetAllocation, |
737b758c | 4824 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
4825 | { |
4826 | struct smb_com_transaction2_spi_req *pSMB = NULL; | |
4827 | struct smb_com_transaction2_spi_rsp *pSMBr = NULL; | |
4828 | struct file_end_of_file_info *parm_data; | |
4829 | int name_len; | |
4830 | int rc = 0; | |
4831 | int bytes_returned = 0; | |
4832 | __u16 params, byte_count, data_count, param_offset, offset; | |
4833 | ||
b6b38f70 | 4834 | cFYI(1, "In SetEOF"); |
1da177e4 LT |
4835 | SetEOFRetry: |
4836 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4837 | (void **) &pSMBr); | |
4838 | if (rc) | |
4839 | return rc; | |
4840 | ||
4841 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
4842 | name_len = | |
b1a45695 | 4843 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 4844 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
4845 | name_len++; /* trailing null */ |
4846 | name_len *= 2; | |
3e87d803 | 4847 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
4848 | name_len = strnlen(fileName, PATH_MAX); |
4849 | name_len++; /* trailing null */ | |
4850 | strncpy(pSMB->FileName, fileName, name_len); | |
4851 | } | |
4852 | params = 6 + name_len; | |
26f57364 | 4853 | data_count = sizeof(struct file_end_of_file_info); |
1da177e4 | 4854 | pSMB->MaxParameterCount = cpu_to_le16(2); |
3e87d803 | 4855 | pSMB->MaxDataCount = cpu_to_le16(4100); |
1da177e4 LT |
4856 | pSMB->MaxSetupCount = 0; |
4857 | pSMB->Reserved = 0; | |
4858 | pSMB->Flags = 0; | |
4859 | pSMB->Timeout = 0; | |
4860 | pSMB->Reserved2 = 0; | |
4861 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 4862 | InformationLevel) - 4; |
1da177e4 | 4863 | offset = param_offset + params; |
790fe579 | 4864 | if (SetAllocation) { |
50c2f753 SF |
4865 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
4866 | pSMB->InformationLevel = | |
4867 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO2); | |
4868 | else | |
4869 | pSMB->InformationLevel = | |
4870 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO); | |
4871 | } else /* Set File Size */ { | |
1da177e4 LT |
4872 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
4873 | pSMB->InformationLevel = | |
50c2f753 | 4874 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO2); |
1da177e4 LT |
4875 | else |
4876 | pSMB->InformationLevel = | |
50c2f753 | 4877 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO); |
1da177e4 LT |
4878 | } |
4879 | ||
4880 | parm_data = | |
4881 | (struct file_end_of_file_info *) (((char *) &pSMB->hdr.Protocol) + | |
4882 | offset); | |
4883 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4884 | pSMB->DataOffset = cpu_to_le16(offset); | |
4885 | pSMB->SetupCount = 1; | |
4886 | pSMB->Reserved3 = 0; | |
4887 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
4888 | byte_count = 3 /* pad */ + params + data_count; | |
4889 | pSMB->DataCount = cpu_to_le16(data_count); | |
4890 | pSMB->TotalDataCount = pSMB->DataCount; | |
4891 | pSMB->ParameterCount = cpu_to_le16(params); | |
4892 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4893 | pSMB->Reserved4 = 0; | |
4894 | pSMB->hdr.smb_buf_length += byte_count; | |
4895 | parm_data->FileSize = cpu_to_le64(size); | |
4896 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4897 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4898 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
ad7a2926 | 4899 | if (rc) |
b6b38f70 | 4900 | cFYI(1, "SetPathInfo (file size) returned %d", rc); |
1da177e4 LT |
4901 | |
4902 | cifs_buf_release(pSMB); | |
4903 | ||
4904 | if (rc == -EAGAIN) | |
4905 | goto SetEOFRetry; | |
4906 | ||
4907 | return rc; | |
4908 | } | |
4909 | ||
4910 | int | |
50c2f753 | 4911 | CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon, __u64 size, |
4b18f2a9 | 4912 | __u16 fid, __u32 pid_of_opener, bool SetAllocation) |
1da177e4 LT |
4913 | { |
4914 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
1da177e4 LT |
4915 | char *data_offset; |
4916 | struct file_end_of_file_info *parm_data; | |
4917 | int rc = 0; | |
1da177e4 LT |
4918 | __u16 params, param_offset, offset, byte_count, count; |
4919 | ||
b6b38f70 JP |
4920 | cFYI(1, "SetFileSize (via SetFileInfo) %lld", |
4921 | (long long)size); | |
cd63499c SF |
4922 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
4923 | ||
1da177e4 LT |
4924 | if (rc) |
4925 | return rc; | |
4926 | ||
4927 | pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener); | |
4928 | pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16)); | |
50c2f753 | 4929 | |
1da177e4 LT |
4930 | params = 6; |
4931 | pSMB->MaxSetupCount = 0; | |
4932 | pSMB->Reserved = 0; | |
4933 | pSMB->Flags = 0; | |
4934 | pSMB->Timeout = 0; | |
4935 | pSMB->Reserved2 = 0; | |
4936 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
4937 | offset = param_offset + params; | |
4938 | ||
50c2f753 | 4939 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; |
1da177e4 LT |
4940 | |
4941 | count = sizeof(struct file_end_of_file_info); | |
4942 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
582d21e5 SF |
4943 | /* BB find exact max SMB PDU from sess structure BB */ |
4944 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1da177e4 LT |
4945 | pSMB->SetupCount = 1; |
4946 | pSMB->Reserved3 = 0; | |
4947 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
4948 | byte_count = 3 /* pad */ + params + count; | |
4949 | pSMB->DataCount = cpu_to_le16(count); | |
4950 | pSMB->ParameterCount = cpu_to_le16(params); | |
4951 | pSMB->TotalDataCount = pSMB->DataCount; | |
4952 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4953 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4954 | parm_data = | |
50c2f753 SF |
4955 | (struct file_end_of_file_info *) (((char *) &pSMB->hdr.Protocol) |
4956 | + offset); | |
1da177e4 LT |
4957 | pSMB->DataOffset = cpu_to_le16(offset); |
4958 | parm_data->FileSize = cpu_to_le64(size); | |
4959 | pSMB->Fid = fid; | |
790fe579 | 4960 | if (SetAllocation) { |
1da177e4 LT |
4961 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
4962 | pSMB->InformationLevel = | |
4963 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO2); | |
4964 | else | |
4965 | pSMB->InformationLevel = | |
4966 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO); | |
50c2f753 | 4967 | } else /* Set File Size */ { |
1da177e4 LT |
4968 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
4969 | pSMB->InformationLevel = | |
50c2f753 | 4970 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO2); |
1da177e4 LT |
4971 | else |
4972 | pSMB->InformationLevel = | |
50c2f753 | 4973 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO); |
1da177e4 LT |
4974 | } |
4975 | pSMB->Reserved4 = 0; | |
4976 | pSMB->hdr.smb_buf_length += byte_count; | |
4977 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
133672ef | 4978 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); |
1da177e4 | 4979 | if (rc) { |
b6b38f70 | 4980 | cFYI(1, "Send error in SetFileInfo (SetFileSize) = %d", rc); |
1da177e4 LT |
4981 | } |
4982 | ||
50c2f753 | 4983 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
1da177e4 LT |
4984 | since file handle passed in no longer valid */ |
4985 | ||
4986 | return rc; | |
4987 | } | |
4988 | ||
50c2f753 | 4989 | /* Some legacy servers such as NT4 require that the file times be set on |
1da177e4 LT |
4990 | an open handle, rather than by pathname - this is awkward due to |
4991 | potential access conflicts on the open, but it is unavoidable for these | |
4992 | old servers since the only other choice is to go from 100 nanosecond DCE | |
4993 | time and resort to the original setpathinfo level which takes the ancient | |
4994 | DOS time format with 2 second granularity */ | |
4995 | int | |
2dd2dfa0 JL |
4996 | CIFSSMBSetFileInfo(const int xid, struct cifsTconInfo *tcon, |
4997 | const FILE_BASIC_INFO *data, __u16 fid, __u32 pid_of_opener) | |
1da177e4 LT |
4998 | { |
4999 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
1da177e4 LT |
5000 | char *data_offset; |
5001 | int rc = 0; | |
1da177e4 LT |
5002 | __u16 params, param_offset, offset, byte_count, count; |
5003 | ||
b6b38f70 | 5004 | cFYI(1, "Set Times (via SetFileInfo)"); |
cd63499c SF |
5005 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
5006 | ||
1da177e4 LT |
5007 | if (rc) |
5008 | return rc; | |
5009 | ||
2dd2dfa0 JL |
5010 | pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener); |
5011 | pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16)); | |
50c2f753 | 5012 | |
1da177e4 LT |
5013 | params = 6; |
5014 | pSMB->MaxSetupCount = 0; | |
5015 | pSMB->Reserved = 0; | |
5016 | pSMB->Flags = 0; | |
5017 | pSMB->Timeout = 0; | |
5018 | pSMB->Reserved2 = 0; | |
5019 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
5020 | offset = param_offset + params; | |
5021 | ||
50c2f753 | 5022 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; |
1da177e4 | 5023 | |
26f57364 | 5024 | count = sizeof(FILE_BASIC_INFO); |
1da177e4 | 5025 | pSMB->MaxParameterCount = cpu_to_le16(2); |
582d21e5 SF |
5026 | /* BB find max SMB PDU from sess */ |
5027 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1da177e4 LT |
5028 | pSMB->SetupCount = 1; |
5029 | pSMB->Reserved3 = 0; | |
5030 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
5031 | byte_count = 3 /* pad */ + params + count; | |
5032 | pSMB->DataCount = cpu_to_le16(count); | |
5033 | pSMB->ParameterCount = cpu_to_le16(params); | |
5034 | pSMB->TotalDataCount = pSMB->DataCount; | |
5035 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
5036 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
5037 | pSMB->DataOffset = cpu_to_le16(offset); | |
5038 | pSMB->Fid = fid; | |
5039 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) | |
5040 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO2); | |
5041 | else | |
5042 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO); | |
5043 | pSMB->Reserved4 = 0; | |
5044 | pSMB->hdr.smb_buf_length += byte_count; | |
5045 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
50c2f753 | 5046 | memcpy(data_offset, data, sizeof(FILE_BASIC_INFO)); |
133672ef | 5047 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); |
ad7a2926 | 5048 | if (rc) |
b6b38f70 | 5049 | cFYI(1, "Send error in Set Time (SetFileInfo) = %d", rc); |
1da177e4 | 5050 | |
50c2f753 | 5051 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
1da177e4 LT |
5052 | since file handle passed in no longer valid */ |
5053 | ||
5054 | return rc; | |
5055 | } | |
5056 | ||
6d22f098 JL |
5057 | int |
5058 | CIFSSMBSetFileDisposition(const int xid, struct cifsTconInfo *tcon, | |
5059 | bool delete_file, __u16 fid, __u32 pid_of_opener) | |
5060 | { | |
5061 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
5062 | char *data_offset; | |
5063 | int rc = 0; | |
5064 | __u16 params, param_offset, offset, byte_count, count; | |
5065 | ||
b6b38f70 | 5066 | cFYI(1, "Set File Disposition (via SetFileInfo)"); |
6d22f098 JL |
5067 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
5068 | ||
5069 | if (rc) | |
5070 | return rc; | |
5071 | ||
5072 | pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener); | |
5073 | pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16)); | |
5074 | ||
5075 | params = 6; | |
5076 | pSMB->MaxSetupCount = 0; | |
5077 | pSMB->Reserved = 0; | |
5078 | pSMB->Flags = 0; | |
5079 | pSMB->Timeout = 0; | |
5080 | pSMB->Reserved2 = 0; | |
5081 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
5082 | offset = param_offset + params; | |
5083 | ||
5084 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
5085 | ||
5086 | count = 1; | |
5087 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
5088 | /* BB find max SMB PDU from sess */ | |
5089 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
5090 | pSMB->SetupCount = 1; | |
5091 | pSMB->Reserved3 = 0; | |
5092 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
5093 | byte_count = 3 /* pad */ + params + count; | |
5094 | pSMB->DataCount = cpu_to_le16(count); | |
5095 | pSMB->ParameterCount = cpu_to_le16(params); | |
5096 | pSMB->TotalDataCount = pSMB->DataCount; | |
5097 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
5098 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
5099 | pSMB->DataOffset = cpu_to_le16(offset); | |
5100 | pSMB->Fid = fid; | |
5101 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_DISPOSITION_INFO); | |
5102 | pSMB->Reserved4 = 0; | |
5103 | pSMB->hdr.smb_buf_length += byte_count; | |
5104 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
5105 | *data_offset = delete_file ? 1 : 0; | |
5106 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); | |
5107 | if (rc) | |
b6b38f70 | 5108 | cFYI(1, "Send error in SetFileDisposition = %d", rc); |
6d22f098 JL |
5109 | |
5110 | return rc; | |
5111 | } | |
1da177e4 LT |
5112 | |
5113 | int | |
6fc000e5 JL |
5114 | CIFSSMBSetPathInfo(const int xid, struct cifsTconInfo *tcon, |
5115 | const char *fileName, const FILE_BASIC_INFO *data, | |
5116 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
5117 | { |
5118 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
5119 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
5120 | int name_len; | |
5121 | int rc = 0; | |
5122 | int bytes_returned = 0; | |
5123 | char *data_offset; | |
5124 | __u16 params, param_offset, offset, byte_count, count; | |
5125 | ||
b6b38f70 | 5126 | cFYI(1, "In SetTimes"); |
1da177e4 LT |
5127 | |
5128 | SetTimesRetry: | |
5129 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
5130 | (void **) &pSMBr); | |
5131 | if (rc) | |
5132 | return rc; | |
5133 | ||
5134 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
5135 | name_len = | |
b1a45695 | 5136 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 5137 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
5138 | name_len++; /* trailing null */ |
5139 | name_len *= 2; | |
50c2f753 | 5140 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
5141 | name_len = strnlen(fileName, PATH_MAX); |
5142 | name_len++; /* trailing null */ | |
5143 | strncpy(pSMB->FileName, fileName, name_len); | |
5144 | } | |
5145 | ||
5146 | params = 6 + name_len; | |
26f57364 | 5147 | count = sizeof(FILE_BASIC_INFO); |
1da177e4 | 5148 | pSMB->MaxParameterCount = cpu_to_le16(2); |
582d21e5 SF |
5149 | /* BB find max SMB PDU from sess structure BB */ |
5150 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1da177e4 LT |
5151 | pSMB->MaxSetupCount = 0; |
5152 | pSMB->Reserved = 0; | |
5153 | pSMB->Flags = 0; | |
5154 | pSMB->Timeout = 0; | |
5155 | pSMB->Reserved2 = 0; | |
5156 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 5157 | InformationLevel) - 4; |
1da177e4 LT |
5158 | offset = param_offset + params; |
5159 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
5160 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
5161 | pSMB->DataOffset = cpu_to_le16(offset); | |
5162 | pSMB->SetupCount = 1; | |
5163 | pSMB->Reserved3 = 0; | |
5164 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
5165 | byte_count = 3 /* pad */ + params + count; | |
5166 | ||
5167 | pSMB->DataCount = cpu_to_le16(count); | |
5168 | pSMB->ParameterCount = cpu_to_le16(params); | |
5169 | pSMB->TotalDataCount = pSMB->DataCount; | |
5170 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
5171 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) | |
5172 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO2); | |
5173 | else | |
5174 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO); | |
5175 | pSMB->Reserved4 = 0; | |
5176 | pSMB->hdr.smb_buf_length += byte_count; | |
26f57364 | 5177 | memcpy(data_offset, data, sizeof(FILE_BASIC_INFO)); |
1da177e4 LT |
5178 | pSMB->ByteCount = cpu_to_le16(byte_count); |
5179 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
5180 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
ad7a2926 | 5181 | if (rc) |
b6b38f70 | 5182 | cFYI(1, "SetPathInfo (times) returned %d", rc); |
1da177e4 LT |
5183 | |
5184 | cifs_buf_release(pSMB); | |
5185 | ||
5186 | if (rc == -EAGAIN) | |
5187 | goto SetTimesRetry; | |
5188 | ||
5189 | return rc; | |
5190 | } | |
5191 | ||
5192 | /* Can not be used to set time stamps yet (due to old DOS time format) */ | |
5193 | /* Can be used to set attributes */ | |
5194 | #if 0 /* Possibly not needed - since it turns out that strangely NT4 has a bug | |
5195 | handling it anyway and NT4 was what we thought it would be needed for | |
5196 | Do not delete it until we prove whether needed for Win9x though */ | |
5197 | int | |
5198 | CIFSSMBSetAttrLegacy(int xid, struct cifsTconInfo *tcon, char *fileName, | |
5199 | __u16 dos_attrs, const struct nls_table *nls_codepage) | |
5200 | { | |
5201 | SETATTR_REQ *pSMB = NULL; | |
5202 | SETATTR_RSP *pSMBr = NULL; | |
5203 | int rc = 0; | |
5204 | int bytes_returned; | |
5205 | int name_len; | |
5206 | ||
b6b38f70 | 5207 | cFYI(1, "In SetAttrLegacy"); |
1da177e4 LT |
5208 | |
5209 | SetAttrLgcyRetry: | |
5210 | rc = smb_init(SMB_COM_SETATTR, 8, tcon, (void **) &pSMB, | |
5211 | (void **) &pSMBr); | |
5212 | if (rc) | |
5213 | return rc; | |
5214 | ||
5215 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
5216 | name_len = | |
50c2f753 | 5217 | ConvertToUCS((__le16 *) pSMB->fileName, fileName, |
1da177e4 LT |
5218 | PATH_MAX, nls_codepage); |
5219 | name_len++; /* trailing null */ | |
5220 | name_len *= 2; | |
50c2f753 | 5221 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
5222 | name_len = strnlen(fileName, PATH_MAX); |
5223 | name_len++; /* trailing null */ | |
5224 | strncpy(pSMB->fileName, fileName, name_len); | |
5225 | } | |
5226 | pSMB->attr = cpu_to_le16(dos_attrs); | |
5227 | pSMB->BufferFormat = 0x04; | |
5228 | pSMB->hdr.smb_buf_length += name_len + 1; | |
5229 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
5230 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
5231 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
ad7a2926 | 5232 | if (rc) |
b6b38f70 | 5233 | cFYI(1, "Error in LegacySetAttr = %d", rc); |
1da177e4 LT |
5234 | |
5235 | cifs_buf_release(pSMB); | |
5236 | ||
5237 | if (rc == -EAGAIN) | |
5238 | goto SetAttrLgcyRetry; | |
5239 | ||
5240 | return rc; | |
5241 | } | |
5242 | #endif /* temporarily unneeded SetAttr legacy function */ | |
5243 | ||
654cf14a JL |
5244 | static void |
5245 | cifs_fill_unix_set_info(FILE_UNIX_BASIC_INFO *data_offset, | |
5246 | const struct cifs_unix_set_info_args *args) | |
5247 | { | |
5248 | u64 mode = args->mode; | |
5249 | ||
5250 | /* | |
5251 | * Samba server ignores set of file size to zero due to bugs in some | |
5252 | * older clients, but we should be precise - we use SetFileSize to | |
5253 | * set file size and do not want to truncate file size to zero | |
5254 | * accidently as happened on one Samba server beta by putting | |
5255 | * zero instead of -1 here | |
5256 | */ | |
5257 | data_offset->EndOfFile = cpu_to_le64(NO_CHANGE_64); | |
5258 | data_offset->NumOfBytes = cpu_to_le64(NO_CHANGE_64); | |
5259 | data_offset->LastStatusChange = cpu_to_le64(args->ctime); | |
5260 | data_offset->LastAccessTime = cpu_to_le64(args->atime); | |
5261 | data_offset->LastModificationTime = cpu_to_le64(args->mtime); | |
5262 | data_offset->Uid = cpu_to_le64(args->uid); | |
5263 | data_offset->Gid = cpu_to_le64(args->gid); | |
5264 | /* better to leave device as zero when it is */ | |
5265 | data_offset->DevMajor = cpu_to_le64(MAJOR(args->device)); | |
5266 | data_offset->DevMinor = cpu_to_le64(MINOR(args->device)); | |
5267 | data_offset->Permissions = cpu_to_le64(mode); | |
5268 | ||
5269 | if (S_ISREG(mode)) | |
5270 | data_offset->Type = cpu_to_le32(UNIX_FILE); | |
5271 | else if (S_ISDIR(mode)) | |
5272 | data_offset->Type = cpu_to_le32(UNIX_DIR); | |
5273 | else if (S_ISLNK(mode)) | |
5274 | data_offset->Type = cpu_to_le32(UNIX_SYMLINK); | |
5275 | else if (S_ISCHR(mode)) | |
5276 | data_offset->Type = cpu_to_le32(UNIX_CHARDEV); | |
5277 | else if (S_ISBLK(mode)) | |
5278 | data_offset->Type = cpu_to_le32(UNIX_BLOCKDEV); | |
5279 | else if (S_ISFIFO(mode)) | |
5280 | data_offset->Type = cpu_to_le32(UNIX_FIFO); | |
5281 | else if (S_ISSOCK(mode)) | |
5282 | data_offset->Type = cpu_to_le32(UNIX_SOCKET); | |
5283 | } | |
5284 | ||
3bbeeb3c JL |
5285 | int |
5286 | CIFSSMBUnixSetFileInfo(const int xid, struct cifsTconInfo *tcon, | |
5287 | const struct cifs_unix_set_info_args *args, | |
5288 | u16 fid, u32 pid_of_opener) | |
5289 | { | |
5290 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
5291 | FILE_UNIX_BASIC_INFO *data_offset; | |
5292 | int rc = 0; | |
5293 | u16 params, param_offset, offset, byte_count, count; | |
5294 | ||
b6b38f70 | 5295 | cFYI(1, "Set Unix Info (via SetFileInfo)"); |
3bbeeb3c JL |
5296 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
5297 | ||
5298 | if (rc) | |
5299 | return rc; | |
5300 | ||
5301 | pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener); | |
5302 | pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16)); | |
5303 | ||
5304 | params = 6; | |
5305 | pSMB->MaxSetupCount = 0; | |
5306 | pSMB->Reserved = 0; | |
5307 | pSMB->Flags = 0; | |
5308 | pSMB->Timeout = 0; | |
5309 | pSMB->Reserved2 = 0; | |
5310 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
5311 | offset = param_offset + params; | |
5312 | ||
5313 | data_offset = (FILE_UNIX_BASIC_INFO *) | |
5314 | ((char *)(&pSMB->hdr.Protocol) + offset); | |
5315 | count = sizeof(FILE_UNIX_BASIC_INFO); | |
5316 | ||
5317 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
5318 | /* BB find max SMB PDU from sess */ | |
5319 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
5320 | pSMB->SetupCount = 1; | |
5321 | pSMB->Reserved3 = 0; | |
5322 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
5323 | byte_count = 3 /* pad */ + params + count; | |
5324 | pSMB->DataCount = cpu_to_le16(count); | |
5325 | pSMB->ParameterCount = cpu_to_le16(params); | |
5326 | pSMB->TotalDataCount = pSMB->DataCount; | |
5327 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
5328 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
5329 | pSMB->DataOffset = cpu_to_le16(offset); | |
5330 | pSMB->Fid = fid; | |
5331 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_BASIC); | |
5332 | pSMB->Reserved4 = 0; | |
5333 | pSMB->hdr.smb_buf_length += byte_count; | |
5334 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
5335 | ||
5336 | cifs_fill_unix_set_info(data_offset, args); | |
5337 | ||
5338 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); | |
5339 | if (rc) | |
b6b38f70 | 5340 | cFYI(1, "Send error in Set Time (SetFileInfo) = %d", rc); |
3bbeeb3c JL |
5341 | |
5342 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
5343 | since file handle passed in no longer valid */ | |
5344 | ||
5345 | return rc; | |
5346 | } | |
5347 | ||
1da177e4 | 5348 | int |
01ea95e3 JL |
5349 | CIFSSMBUnixSetPathInfo(const int xid, struct cifsTconInfo *tcon, char *fileName, |
5350 | const struct cifs_unix_set_info_args *args, | |
5351 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
5352 | { |
5353 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
5354 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
5355 | int name_len; | |
5356 | int rc = 0; | |
5357 | int bytes_returned = 0; | |
5358 | FILE_UNIX_BASIC_INFO *data_offset; | |
5359 | __u16 params, param_offset, offset, count, byte_count; | |
5360 | ||
b6b38f70 | 5361 | cFYI(1, "In SetUID/GID/Mode"); |
1da177e4 LT |
5362 | setPermsRetry: |
5363 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
5364 | (void **) &pSMBr); | |
5365 | if (rc) | |
5366 | return rc; | |
5367 | ||
5368 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
5369 | name_len = | |
50c2f753 | 5370 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 5371 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
5372 | name_len++; /* trailing null */ |
5373 | name_len *= 2; | |
3e87d803 | 5374 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
5375 | name_len = strnlen(fileName, PATH_MAX); |
5376 | name_len++; /* trailing null */ | |
5377 | strncpy(pSMB->FileName, fileName, name_len); | |
5378 | } | |
5379 | ||
5380 | params = 6 + name_len; | |
26f57364 | 5381 | count = sizeof(FILE_UNIX_BASIC_INFO); |
1da177e4 | 5382 | pSMB->MaxParameterCount = cpu_to_le16(2); |
582d21e5 SF |
5383 | /* BB find max SMB PDU from sess structure BB */ |
5384 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1da177e4 LT |
5385 | pSMB->MaxSetupCount = 0; |
5386 | pSMB->Reserved = 0; | |
5387 | pSMB->Flags = 0; | |
5388 | pSMB->Timeout = 0; | |
5389 | pSMB->Reserved2 = 0; | |
5390 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 5391 | InformationLevel) - 4; |
1da177e4 LT |
5392 | offset = param_offset + params; |
5393 | data_offset = | |
5394 | (FILE_UNIX_BASIC_INFO *) ((char *) &pSMB->hdr.Protocol + | |
5395 | offset); | |
5396 | memset(data_offset, 0, count); | |
5397 | pSMB->DataOffset = cpu_to_le16(offset); | |
5398 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
5399 | pSMB->SetupCount = 1; | |
5400 | pSMB->Reserved3 = 0; | |
5401 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
5402 | byte_count = 3 /* pad */ + params + count; | |
5403 | pSMB->ParameterCount = cpu_to_le16(params); | |
5404 | pSMB->DataCount = cpu_to_le16(count); | |
5405 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
5406 | pSMB->TotalDataCount = pSMB->DataCount; | |
5407 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_BASIC); | |
5408 | pSMB->Reserved4 = 0; | |
5409 | pSMB->hdr.smb_buf_length += byte_count; | |
1da177e4 | 5410 | |
654cf14a | 5411 | cifs_fill_unix_set_info(data_offset, args); |
1da177e4 LT |
5412 | |
5413 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
5414 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
5415 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
ad7a2926 | 5416 | if (rc) |
b6b38f70 | 5417 | cFYI(1, "SetPathInfo (perms) returned %d", rc); |
1da177e4 | 5418 | |
0d817bc0 | 5419 | cifs_buf_release(pSMB); |
1da177e4 LT |
5420 | if (rc == -EAGAIN) |
5421 | goto setPermsRetry; | |
5422 | return rc; | |
5423 | } | |
5424 | ||
50c2f753 | 5425 | int CIFSSMBNotify(const int xid, struct cifsTconInfo *tcon, |
167a251a | 5426 | const int notify_subdirs, const __u16 netfid, |
50c2f753 | 5427 | __u32 filter, struct file *pfile, int multishot, |
167a251a | 5428 | const struct nls_table *nls_codepage) |
1da177e4 LT |
5429 | { |
5430 | int rc = 0; | |
50c2f753 SF |
5431 | struct smb_com_transaction_change_notify_req *pSMB = NULL; |
5432 | struct smb_com_ntransaction_change_notify_rsp *pSMBr = NULL; | |
abb15b8a | 5433 | struct dir_notify_req *dnotify_req; |
1da177e4 LT |
5434 | int bytes_returned; |
5435 | ||
b6b38f70 | 5436 | cFYI(1, "In CIFSSMBNotify for file handle %d", (int)netfid); |
1da177e4 | 5437 | rc = smb_init(SMB_COM_NT_TRANSACT, 23, tcon, (void **) &pSMB, |
50c2f753 | 5438 | (void **) &pSMBr); |
1da177e4 LT |
5439 | if (rc) |
5440 | return rc; | |
5441 | ||
5442 | pSMB->TotalParameterCount = 0 ; | |
5443 | pSMB->TotalDataCount = 0; | |
5444 | pSMB->MaxParameterCount = cpu_to_le32(2); | |
5445 | /* BB find exact data count max from sess structure BB */ | |
5446 | pSMB->MaxDataCount = 0; /* same in little endian or be */ | |
0a4b92c0 SF |
5447 | /* BB VERIFY verify which is correct for above BB */ |
5448 | pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf - | |
5449 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
5450 | ||
1da177e4 LT |
5451 | pSMB->MaxSetupCount = 4; |
5452 | pSMB->Reserved = 0; | |
5453 | pSMB->ParameterOffset = 0; | |
5454 | pSMB->DataCount = 0; | |
5455 | pSMB->DataOffset = 0; | |
5456 | pSMB->SetupCount = 4; /* single byte does not need le conversion */ | |
5457 | pSMB->SubCommand = cpu_to_le16(NT_TRANSACT_NOTIFY_CHANGE); | |
5458 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
790fe579 | 5459 | if (notify_subdirs) |
1da177e4 LT |
5460 | pSMB->WatchTree = 1; /* one byte - no le conversion needed */ |
5461 | pSMB->Reserved2 = 0; | |
5462 | pSMB->CompletionFilter = cpu_to_le32(filter); | |
5463 | pSMB->Fid = netfid; /* file handle always le */ | |
5464 | pSMB->ByteCount = 0; | |
5465 | ||
5466 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
133672ef SF |
5467 | (struct smb_hdr *)pSMBr, &bytes_returned, |
5468 | CIFS_ASYNC_OP); | |
1da177e4 | 5469 | if (rc) { |
b6b38f70 | 5470 | cFYI(1, "Error in Notify = %d", rc); |
ff5dbd9e SF |
5471 | } else { |
5472 | /* Add file to outstanding requests */ | |
50c2f753 | 5473 | /* BB change to kmem cache alloc */ |
5cbded58 | 5474 | dnotify_req = kmalloc( |
47c786e7 SF |
5475 | sizeof(struct dir_notify_req), |
5476 | GFP_KERNEL); | |
790fe579 | 5477 | if (dnotify_req) { |
47c786e7 SF |
5478 | dnotify_req->Pid = pSMB->hdr.Pid; |
5479 | dnotify_req->PidHigh = pSMB->hdr.PidHigh; | |
5480 | dnotify_req->Mid = pSMB->hdr.Mid; | |
5481 | dnotify_req->Tid = pSMB->hdr.Tid; | |
5482 | dnotify_req->Uid = pSMB->hdr.Uid; | |
5483 | dnotify_req->netfid = netfid; | |
5484 | dnotify_req->pfile = pfile; | |
5485 | dnotify_req->filter = filter; | |
5486 | dnotify_req->multishot = multishot; | |
5487 | spin_lock(&GlobalMid_Lock); | |
50c2f753 | 5488 | list_add_tail(&dnotify_req->lhead, |
47c786e7 SF |
5489 | &GlobalDnotifyReqList); |
5490 | spin_unlock(&GlobalMid_Lock); | |
50c2f753 | 5491 | } else |
47c786e7 | 5492 | rc = -ENOMEM; |
1da177e4 LT |
5493 | } |
5494 | cifs_buf_release(pSMB); | |
50c2f753 | 5495 | return rc; |
1da177e4 | 5496 | } |
31c0519f | 5497 | |
1da177e4 | 5498 | #ifdef CONFIG_CIFS_XATTR |
31c0519f JL |
5499 | /* |
5500 | * Do a path-based QUERY_ALL_EAS call and parse the result. This is a common | |
5501 | * function used by listxattr and getxattr type calls. When ea_name is set, | |
5502 | * it looks for that attribute name and stuffs that value into the EAData | |
5503 | * buffer. When ea_name is NULL, it stuffs a list of attribute names into the | |
5504 | * buffer. In both cases, the return value is either the length of the | |
5505 | * resulting data or a negative error code. If EAData is a NULL pointer then | |
5506 | * the data isn't copied to it, but the length is returned. | |
5507 | */ | |
1da177e4 LT |
5508 | ssize_t |
5509 | CIFSSMBQAllEAs(const int xid, struct cifsTconInfo *tcon, | |
31c0519f JL |
5510 | const unsigned char *searchName, const unsigned char *ea_name, |
5511 | char *EAData, size_t buf_size, | |
5512 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
5513 | { |
5514 | /* BB assumes one setup word */ | |
5515 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
5516 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
5517 | int rc = 0; | |
5518 | int bytes_returned; | |
6e462b9f | 5519 | int list_len; |
f0d3868b | 5520 | struct fealist *ea_response_data; |
50c2f753 SF |
5521 | struct fea *temp_fea; |
5522 | char *temp_ptr; | |
0cd126b5 | 5523 | char *end_of_smb; |
f0d3868b | 5524 | __u16 params, byte_count, data_offset; |
1da177e4 | 5525 | |
b6b38f70 | 5526 | cFYI(1, "In Query All EAs path %s", searchName); |
1da177e4 LT |
5527 | QAllEAsRetry: |
5528 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
5529 | (void **) &pSMBr); | |
5530 | if (rc) | |
5531 | return rc; | |
5532 | ||
5533 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
6e462b9f | 5534 | list_len = |
50c2f753 | 5535 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 5536 | PATH_MAX, nls_codepage, remap); |
6e462b9f JL |
5537 | list_len++; /* trailing null */ |
5538 | list_len *= 2; | |
1da177e4 | 5539 | } else { /* BB improve the check for buffer overruns BB */ |
6e462b9f JL |
5540 | list_len = strnlen(searchName, PATH_MAX); |
5541 | list_len++; /* trailing null */ | |
5542 | strncpy(pSMB->FileName, searchName, list_len); | |
1da177e4 LT |
5543 | } |
5544 | ||
6e462b9f | 5545 | params = 2 /* level */ + 4 /* reserved */ + list_len /* includes NUL */; |
1da177e4 LT |
5546 | pSMB->TotalDataCount = 0; |
5547 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
582d21e5 | 5548 | /* BB find exact max SMB PDU from sess structure BB */ |
e529614a | 5549 | pSMB->MaxDataCount = cpu_to_le16(CIFSMaxBufSize); |
1da177e4 LT |
5550 | pSMB->MaxSetupCount = 0; |
5551 | pSMB->Reserved = 0; | |
5552 | pSMB->Flags = 0; | |
5553 | pSMB->Timeout = 0; | |
5554 | pSMB->Reserved2 = 0; | |
5555 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 5556 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
1da177e4 LT |
5557 | pSMB->DataCount = 0; |
5558 | pSMB->DataOffset = 0; | |
5559 | pSMB->SetupCount = 1; | |
5560 | pSMB->Reserved3 = 0; | |
5561 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
5562 | byte_count = params + 1 /* pad */ ; | |
5563 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
5564 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
5565 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_QUERY_ALL_EAS); | |
5566 | pSMB->Reserved4 = 0; | |
5567 | pSMB->hdr.smb_buf_length += byte_count; | |
5568 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
5569 | ||
5570 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
5571 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
5572 | if (rc) { | |
b6b38f70 | 5573 | cFYI(1, "Send error in QueryAllEAs = %d", rc); |
f0d3868b JL |
5574 | goto QAllEAsOut; |
5575 | } | |
1da177e4 | 5576 | |
f0d3868b JL |
5577 | |
5578 | /* BB also check enough total bytes returned */ | |
5579 | /* BB we need to improve the validity checking | |
5580 | of these trans2 responses */ | |
5581 | ||
5582 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
5583 | if (rc || (pSMBr->ByteCount < 4)) { | |
5584 | rc = -EIO; /* bad smb */ | |
5585 | goto QAllEAsOut; | |
5586 | } | |
5587 | ||
5588 | /* check that length of list is not more than bcc */ | |
5589 | /* check that each entry does not go beyond length | |
5590 | of list */ | |
5591 | /* check that each element of each entry does not | |
5592 | go beyond end of list */ | |
5593 | /* validate_trans2_offsets() */ | |
5594 | /* BB check if start of smb + data_offset > &bcc+ bcc */ | |
5595 | ||
5596 | data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
5597 | ea_response_data = (struct fealist *) | |
5598 | (((char *) &pSMBr->hdr.Protocol) + data_offset); | |
5599 | ||
6e462b9f | 5600 | list_len = le32_to_cpu(ea_response_data->list_len); |
b6b38f70 | 5601 | cFYI(1, "ea length %d", list_len); |
6e462b9f | 5602 | if (list_len <= 8) { |
b6b38f70 | 5603 | cFYI(1, "empty EA list returned from server"); |
f0d3868b JL |
5604 | goto QAllEAsOut; |
5605 | } | |
5606 | ||
0cd126b5 | 5607 | /* make sure list_len doesn't go past end of SMB */ |
690c522f | 5608 | end_of_smb = (char *)pByteArea(&pSMBr->hdr) + get_bcc(&pSMBr->hdr); |
0cd126b5 | 5609 | if ((char *)ea_response_data + list_len > end_of_smb) { |
b6b38f70 | 5610 | cFYI(1, "EA list appears to go beyond SMB"); |
0cd126b5 JL |
5611 | rc = -EIO; |
5612 | goto QAllEAsOut; | |
5613 | } | |
5614 | ||
f0d3868b | 5615 | /* account for ea list len */ |
6e462b9f | 5616 | list_len -= 4; |
f0d3868b JL |
5617 | temp_fea = ea_response_data->list; |
5618 | temp_ptr = (char *)temp_fea; | |
6e462b9f | 5619 | while (list_len > 0) { |
122ca007 | 5620 | unsigned int name_len; |
f0d3868b | 5621 | __u16 value_len; |
0cd126b5 | 5622 | |
6e462b9f | 5623 | list_len -= 4; |
f0d3868b | 5624 | temp_ptr += 4; |
0cd126b5 JL |
5625 | /* make sure we can read name_len and value_len */ |
5626 | if (list_len < 0) { | |
b6b38f70 | 5627 | cFYI(1, "EA entry goes beyond length of list"); |
0cd126b5 JL |
5628 | rc = -EIO; |
5629 | goto QAllEAsOut; | |
5630 | } | |
5631 | ||
5632 | name_len = temp_fea->name_len; | |
5633 | value_len = le16_to_cpu(temp_fea->value_len); | |
5634 | list_len -= name_len + 1 + value_len; | |
5635 | if (list_len < 0) { | |
b6b38f70 | 5636 | cFYI(1, "EA entry goes beyond length of list"); |
0cd126b5 JL |
5637 | rc = -EIO; |
5638 | goto QAllEAsOut; | |
5639 | } | |
5640 | ||
31c0519f JL |
5641 | if (ea_name) { |
5642 | if (strncmp(ea_name, temp_ptr, name_len) == 0) { | |
5643 | temp_ptr += name_len + 1; | |
5644 | rc = value_len; | |
5645 | if (buf_size == 0) | |
5646 | goto QAllEAsOut; | |
5647 | if ((size_t)value_len > buf_size) { | |
5648 | rc = -ERANGE; | |
5649 | goto QAllEAsOut; | |
5650 | } | |
5651 | memcpy(EAData, temp_ptr, value_len); | |
5652 | goto QAllEAsOut; | |
5653 | } | |
f0d3868b | 5654 | } else { |
31c0519f JL |
5655 | /* account for prefix user. and trailing null */ |
5656 | rc += (5 + 1 + name_len); | |
5657 | if (rc < (int) buf_size) { | |
5658 | memcpy(EAData, "user.", 5); | |
5659 | EAData += 5; | |
5660 | memcpy(EAData, temp_ptr, name_len); | |
5661 | EAData += name_len; | |
5662 | /* null terminate name */ | |
5663 | *EAData = 0; | |
5664 | ++EAData; | |
5665 | } else if (buf_size == 0) { | |
5666 | /* skip copy - calc size only */ | |
5667 | } else { | |
5668 | /* stop before overrun buffer */ | |
5669 | rc = -ERANGE; | |
5670 | break; | |
5671 | } | |
1da177e4 | 5672 | } |
0cd126b5 | 5673 | temp_ptr += name_len + 1 + value_len; |
f0d3868b | 5674 | temp_fea = (struct fea *)temp_ptr; |
1da177e4 | 5675 | } |
f0d3868b | 5676 | |
31c0519f JL |
5677 | /* didn't find the named attribute */ |
5678 | if (ea_name) | |
5679 | rc = -ENODATA; | |
5680 | ||
f0d3868b | 5681 | QAllEAsOut: |
0d817bc0 | 5682 | cifs_buf_release(pSMB); |
1da177e4 LT |
5683 | if (rc == -EAGAIN) |
5684 | goto QAllEAsRetry; | |
5685 | ||
5686 | return (ssize_t)rc; | |
5687 | } | |
5688 | ||
1da177e4 LT |
5689 | int |
5690 | CIFSSMBSetEA(const int xid, struct cifsTconInfo *tcon, const char *fileName, | |
50c2f753 SF |
5691 | const char *ea_name, const void *ea_value, |
5692 | const __u16 ea_value_len, const struct nls_table *nls_codepage, | |
5693 | int remap) | |
1da177e4 LT |
5694 | { |
5695 | struct smb_com_transaction2_spi_req *pSMB = NULL; | |
5696 | struct smb_com_transaction2_spi_rsp *pSMBr = NULL; | |
5697 | struct fealist *parm_data; | |
5698 | int name_len; | |
5699 | int rc = 0; | |
5700 | int bytes_returned = 0; | |
5701 | __u16 params, param_offset, byte_count, offset, count; | |
5702 | ||
b6b38f70 | 5703 | cFYI(1, "In SetEA"); |
1da177e4 LT |
5704 | SetEARetry: |
5705 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
5706 | (void **) &pSMBr); | |
5707 | if (rc) | |
5708 | return rc; | |
5709 | ||
5710 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
5711 | name_len = | |
50c2f753 | 5712 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 5713 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
5714 | name_len++; /* trailing null */ |
5715 | name_len *= 2; | |
50c2f753 | 5716 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
5717 | name_len = strnlen(fileName, PATH_MAX); |
5718 | name_len++; /* trailing null */ | |
5719 | strncpy(pSMB->FileName, fileName, name_len); | |
5720 | } | |
5721 | ||
5722 | params = 6 + name_len; | |
5723 | ||
5724 | /* done calculating parms using name_len of file name, | |
5725 | now use name_len to calculate length of ea name | |
5726 | we are going to create in the inode xattrs */ | |
790fe579 | 5727 | if (ea_name == NULL) |
1da177e4 LT |
5728 | name_len = 0; |
5729 | else | |
50c2f753 | 5730 | name_len = strnlen(ea_name, 255); |
1da177e4 | 5731 | |
dae5dbdb | 5732 | count = sizeof(*parm_data) + ea_value_len + name_len; |
1da177e4 | 5733 | pSMB->MaxParameterCount = cpu_to_le16(2); |
582d21e5 SF |
5734 | /* BB find max SMB PDU from sess */ |
5735 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1da177e4 LT |
5736 | pSMB->MaxSetupCount = 0; |
5737 | pSMB->Reserved = 0; | |
5738 | pSMB->Flags = 0; | |
5739 | pSMB->Timeout = 0; | |
5740 | pSMB->Reserved2 = 0; | |
5741 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 5742 | InformationLevel) - 4; |
1da177e4 LT |
5743 | offset = param_offset + params; |
5744 | pSMB->InformationLevel = | |
5745 | cpu_to_le16(SMB_SET_FILE_EA); | |
5746 | ||
5747 | parm_data = | |
5748 | (struct fealist *) (((char *) &pSMB->hdr.Protocol) + | |
5749 | offset); | |
5750 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
5751 | pSMB->DataOffset = cpu_to_le16(offset); | |
5752 | pSMB->SetupCount = 1; | |
5753 | pSMB->Reserved3 = 0; | |
5754 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
5755 | byte_count = 3 /* pad */ + params + count; | |
5756 | pSMB->DataCount = cpu_to_le16(count); | |
5757 | parm_data->list_len = cpu_to_le32(count); | |
5758 | parm_data->list[0].EA_flags = 0; | |
5759 | /* we checked above that name len is less than 255 */ | |
53b3531b | 5760 | parm_data->list[0].name_len = (__u8)name_len; |
1da177e4 | 5761 | /* EA names are always ASCII */ |
790fe579 | 5762 | if (ea_name) |
50c2f753 | 5763 | strncpy(parm_data->list[0].name, ea_name, name_len); |
1da177e4 LT |
5764 | parm_data->list[0].name[name_len] = 0; |
5765 | parm_data->list[0].value_len = cpu_to_le16(ea_value_len); | |
5766 | /* caller ensures that ea_value_len is less than 64K but | |
5767 | we need to ensure that it fits within the smb */ | |
5768 | ||
50c2f753 SF |
5769 | /*BB add length check to see if it would fit in |
5770 | negotiated SMB buffer size BB */ | |
790fe579 SF |
5771 | /* if (ea_value_len > buffer_size - 512 (enough for header)) */ |
5772 | if (ea_value_len) | |
50c2f753 SF |
5773 | memcpy(parm_data->list[0].name+name_len+1, |
5774 | ea_value, ea_value_len); | |
1da177e4 LT |
5775 | |
5776 | pSMB->TotalDataCount = pSMB->DataCount; | |
5777 | pSMB->ParameterCount = cpu_to_le16(params); | |
5778 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
5779 | pSMB->Reserved4 = 0; | |
5780 | pSMB->hdr.smb_buf_length += byte_count; | |
5781 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
5782 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
5783 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
ad7a2926 | 5784 | if (rc) |
b6b38f70 | 5785 | cFYI(1, "SetPathInfo (EA) returned %d", rc); |
1da177e4 LT |
5786 | |
5787 | cifs_buf_release(pSMB); | |
5788 | ||
5789 | if (rc == -EAGAIN) | |
5790 | goto SetEARetry; | |
5791 | ||
5792 | return rc; | |
5793 | } | |
5794 | ||
5795 | #endif |