Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * fs/cifs/cifssmb.c | |
3 | * | |
2dd29d31 | 4 | * Copyright (C) International Business Machines Corp., 2002,2007 |
1da177e4 LT |
5 | * Author(s): Steve French (sfrench@us.ibm.com) |
6 | * | |
7 | * Contains the routines for constructing the SMB PDUs themselves | |
8 | * | |
9 | * This library is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU Lesser General Public License as published | |
11 | * by the Free Software Foundation; either version 2.1 of the License, or | |
12 | * (at your option) any later version. | |
13 | * | |
14 | * This library is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See | |
17 | * the GNU Lesser General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU Lesser General Public License | |
20 | * along with this library; if not, write to the Free Software | |
21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
22 | */ | |
23 | ||
24 | /* SMB/CIFS PDU handling routines here - except for leftovers in connect.c */ | |
25 | /* These are mostly routines that operate on a pathname, or on a tree id */ | |
26 | /* (mounted volume), but there are eight handle based routines which must be */ | |
2dd29d31 SF |
27 | /* treated slightly differently for reconnection purposes since we never */ |
28 | /* want to reuse a stale file handle and only the caller knows the file info */ | |
1da177e4 LT |
29 | |
30 | #include <linux/fs.h> | |
31 | #include <linux/kernel.h> | |
32 | #include <linux/vfs.h> | |
33 | #include <linux/posix_acl_xattr.h> | |
34 | #include <asm/uaccess.h> | |
35 | #include "cifspdu.h" | |
36 | #include "cifsglob.h" | |
37 | #include "cifsproto.h" | |
38 | #include "cifs_unicode.h" | |
39 | #include "cifs_debug.h" | |
eeac8047 | 40 | #include "cifsacl.h" |
1da177e4 LT |
41 | |
42 | #ifdef CONFIG_CIFS_POSIX | |
43 | static struct { | |
44 | int index; | |
45 | char *name; | |
46 | } protocols[] = { | |
3979877e SF |
47 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
48 | {LANMAN_PROT, "\2LM1.2X002"}, | |
9ac00b7d | 49 | {LANMAN2_PROT, "\2LANMAN2.1"}, |
3979877e | 50 | #endif /* weak password hashing for legacy clients */ |
50c2f753 | 51 | {CIFS_PROT, "\2NT LM 0.12"}, |
3979877e | 52 | {POSIX_PROT, "\2POSIX 2"}, |
1da177e4 LT |
53 | {BAD_PROT, "\2"} |
54 | }; | |
55 | #else | |
56 | static struct { | |
57 | int index; | |
58 | char *name; | |
59 | } protocols[] = { | |
3979877e SF |
60 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
61 | {LANMAN_PROT, "\2LM1.2X002"}, | |
18f75ca0 | 62 | {LANMAN2_PROT, "\2LANMAN2.1"}, |
3979877e | 63 | #endif /* weak password hashing for legacy clients */ |
790fe579 | 64 | {CIFS_PROT, "\2NT LM 0.12"}, |
1da177e4 LT |
65 | {BAD_PROT, "\2"} |
66 | }; | |
67 | #endif | |
68 | ||
3979877e SF |
69 | /* define the number of elements in the cifs dialect array */ |
70 | #ifdef CONFIG_CIFS_POSIX | |
71 | #ifdef CONFIG_CIFS_WEAK_PW_HASH | |
9ac00b7d | 72 | #define CIFS_NUM_PROT 4 |
3979877e SF |
73 | #else |
74 | #define CIFS_NUM_PROT 2 | |
75 | #endif /* CIFS_WEAK_PW_HASH */ | |
76 | #else /* not posix */ | |
77 | #ifdef CONFIG_CIFS_WEAK_PW_HASH | |
9ac00b7d | 78 | #define CIFS_NUM_PROT 3 |
3979877e SF |
79 | #else |
80 | #define CIFS_NUM_PROT 1 | |
81 | #endif /* CONFIG_CIFS_WEAK_PW_HASH */ | |
82 | #endif /* CIFS_POSIX */ | |
83 | ||
1da177e4 LT |
84 | |
85 | /* Mark as invalid, all open files on tree connections since they | |
86 | were closed when session to server was lost */ | |
790fe579 | 87 | static void mark_open_files_invalid(struct cifsTconInfo *pTcon) |
1da177e4 LT |
88 | { |
89 | struct cifsFileInfo *open_file = NULL; | |
790fe579 SF |
90 | struct list_head *tmp; |
91 | struct list_head *tmp1; | |
1da177e4 LT |
92 | |
93 | /* list all files open on tree connection and mark them invalid */ | |
94 | write_lock(&GlobalSMBSeslock); | |
95 | list_for_each_safe(tmp, tmp1, &pTcon->openFileList) { | |
790fe579 SF |
96 | open_file = list_entry(tmp, struct cifsFileInfo, tlist); |
97 | if (open_file) { | |
1da177e4 LT |
98 | open_file->invalidHandle = TRUE; |
99 | } | |
100 | } | |
101 | write_unlock(&GlobalSMBSeslock); | |
09d1db5c SF |
102 | /* BB Add call to invalidate_inodes(sb) for all superblocks mounted |
103 | to this tcon */ | |
1da177e4 LT |
104 | } |
105 | ||
106 | /* If the return code is zero, this function must fill in request_buf pointer */ | |
107 | static int | |
108 | small_smb_init(int smb_command, int wct, struct cifsTconInfo *tcon, | |
109 | void **request_buf /* returned */) | |
110 | { | |
111 | int rc = 0; | |
112 | ||
113 | /* SMBs NegProt, SessSetup, uLogoff do not have tcon yet so | |
114 | check for tcp and smb session status done differently | |
115 | for those three - in the calling routine */ | |
790fe579 SF |
116 | if (tcon) { |
117 | if (tcon->tidStatus == CifsExiting) { | |
6ab16d24 SF |
118 | /* only tree disconnect, open, and write, |
119 | (and ulogoff which does not have tcon) | |
120 | are allowed as we start force umount */ | |
790fe579 | 121 | if ((smb_command != SMB_COM_WRITE_ANDX) && |
50c2f753 | 122 | (smb_command != SMB_COM_OPEN_ANDX) && |
6ab16d24 | 123 | (smb_command != SMB_COM_TREE_DISCONNECT)) { |
790fe579 | 124 | cFYI(1, ("can not send cmd %d while umounting", |
6ab16d24 SF |
125 | smb_command)); |
126 | return -ENODEV; | |
127 | } | |
128 | } | |
790fe579 | 129 | if ((tcon->ses) && (tcon->ses->status != CifsExiting) && |
50c2f753 | 130 | (tcon->ses->server)) { |
1da177e4 | 131 | struct nls_table *nls_codepage; |
50c2f753 | 132 | /* Give Demultiplex thread up to 10 seconds to |
09d1db5c SF |
133 | reconnect, should be greater than cifs socket |
134 | timeout which is 7 seconds */ | |
1da177e4 LT |
135 | while(tcon->ses->server->tcpStatus == CifsNeedReconnect) { |
136 | wait_event_interruptible_timeout(tcon->ses->server->response_q, | |
137 | (tcon->ses->server->tcpStatus == CifsGood), 10 * HZ); | |
790fe579 | 138 | if (tcon->ses->server->tcpStatus == CifsNeedReconnect) { |
1da177e4 | 139 | /* on "soft" mounts we wait once */ |
790fe579 | 140 | if ((tcon->retry == FALSE) || |
1da177e4 | 141 | (tcon->ses->status == CifsExiting)) { |
50c2f753 SF |
142 | cFYI(1, ("gave up waiting on " |
143 | "reconnect in smb_init")); | |
1da177e4 | 144 | return -EHOSTDOWN; |
09d1db5c SF |
145 | } /* else "hard" mount - keep retrying |
146 | until process is killed or server | |
147 | comes back on-line */ | |
1da177e4 LT |
148 | } else /* TCP session is reestablished now */ |
149 | break; | |
1da177e4 | 150 | } |
50c2f753 | 151 | |
1da177e4 LT |
152 | nls_codepage = load_nls_default(); |
153 | /* need to prevent multiple threads trying to | |
154 | simultaneously reconnect the same SMB session */ | |
155 | down(&tcon->ses->sesSem); | |
790fe579 | 156 | if (tcon->ses->status == CifsNeedReconnect) |
50c2f753 | 157 | rc = cifs_setup_session(0, tcon->ses, |
09d1db5c | 158 | nls_codepage); |
790fe579 | 159 | if (!rc && (tcon->tidStatus == CifsNeedReconnect)) { |
1da177e4 | 160 | mark_open_files_invalid(tcon); |
50c2f753 | 161 | rc = CIFSTCon(0, tcon->ses, tcon->treeName, |
8af18971 | 162 | tcon, nls_codepage); |
1da177e4 | 163 | up(&tcon->ses->sesSem); |
8af18971 SF |
164 | /* tell server which Unix caps we support */ |
165 | if (tcon->ses->capabilities & CAP_UNIX) | |
166 | reset_cifs_unix_caps(0 /* no xid */, | |
50c2f753 | 167 | tcon, |
8af18971 | 168 | NULL /* we do not know sb */, |
50c2f753 | 169 | NULL /* no vol info */); |
3e84469d SF |
170 | /* BB FIXME add code to check if wsize needs |
171 | update due to negotiated smb buffer size | |
172 | shrinking */ | |
790fe579 | 173 | if (rc == 0) |
1da177e4 LT |
174 | atomic_inc(&tconInfoReconnectCount); |
175 | ||
176 | cFYI(1, ("reconnect tcon rc = %d", rc)); | |
50c2f753 SF |
177 | /* Removed call to reopen open files here. |
178 | It is safer (and faster) to reopen files | |
09d1db5c | 179 | one at a time as needed in read and write */ |
1da177e4 | 180 | |
50c2f753 | 181 | /* Check if handle based operation so we |
09d1db5c SF |
182 | know whether we can continue or not without |
183 | returning to caller to reset file handle */ | |
50c2f753 | 184 | switch (smb_command) { |
1da177e4 LT |
185 | case SMB_COM_READ_ANDX: |
186 | case SMB_COM_WRITE_ANDX: | |
187 | case SMB_COM_CLOSE: | |
188 | case SMB_COM_FIND_CLOSE2: | |
189 | case SMB_COM_LOCKING_ANDX: { | |
190 | unload_nls(nls_codepage); | |
191 | return -EAGAIN; | |
192 | } | |
193 | } | |
194 | } else { | |
195 | up(&tcon->ses->sesSem); | |
196 | } | |
197 | unload_nls(nls_codepage); | |
198 | ||
199 | } else { | |
200 | return -EIO; | |
201 | } | |
202 | } | |
790fe579 | 203 | if (rc) |
1da177e4 LT |
204 | return rc; |
205 | ||
206 | *request_buf = cifs_small_buf_get(); | |
207 | if (*request_buf == NULL) { | |
208 | /* BB should we add a retry in here if not a writepage? */ | |
209 | return -ENOMEM; | |
210 | } | |
211 | ||
212 | header_assemble((struct smb_hdr *) *request_buf, smb_command, tcon,wct); | |
213 | ||
790fe579 SF |
214 | if (tcon != NULL) |
215 | cifs_stats_inc(&tcon->num_smbs_sent); | |
a4544347 | 216 | |
1da177e4 | 217 | return rc; |
5815449d SF |
218 | } |
219 | ||
12b3b8ff | 220 | int |
50c2f753 | 221 | small_smb_init_no_tc(const int smb_command, const int wct, |
5815449d | 222 | struct cifsSesInfo *ses, void **request_buf) |
12b3b8ff SF |
223 | { |
224 | int rc; | |
50c2f753 | 225 | struct smb_hdr *buffer; |
12b3b8ff | 226 | |
5815449d | 227 | rc = small_smb_init(smb_command, wct, NULL, request_buf); |
790fe579 | 228 | if (rc) |
12b3b8ff SF |
229 | return rc; |
230 | ||
04fdabe1 | 231 | buffer = (struct smb_hdr *)*request_buf; |
12b3b8ff SF |
232 | buffer->Mid = GetNextMid(ses->server); |
233 | if (ses->capabilities & CAP_UNICODE) | |
234 | buffer->Flags2 |= SMBFLG2_UNICODE; | |
04fdabe1 | 235 | if (ses->capabilities & CAP_STATUS32) |
12b3b8ff SF |
236 | buffer->Flags2 |= SMBFLG2_ERR_STATUS; |
237 | ||
238 | /* uid, tid can stay at zero as set in header assemble */ | |
239 | ||
50c2f753 | 240 | /* BB add support for turning on the signing when |
12b3b8ff SF |
241 | this function is used after 1st of session setup requests */ |
242 | ||
243 | return rc; | |
244 | } | |
1da177e4 LT |
245 | |
246 | /* If the return code is zero, this function must fill in request_buf pointer */ | |
247 | static int | |
248 | smb_init(int smb_command, int wct, struct cifsTconInfo *tcon, | |
249 | void **request_buf /* returned */ , | |
250 | void **response_buf /* returned */ ) | |
251 | { | |
252 | int rc = 0; | |
253 | ||
254 | /* SMBs NegProt, SessSetup, uLogoff do not have tcon yet so | |
255 | check for tcp and smb session status done differently | |
256 | for those three - in the calling routine */ | |
790fe579 SF |
257 | if (tcon) { |
258 | if (tcon->tidStatus == CifsExiting) { | |
6ab16d24 SF |
259 | /* only tree disconnect, open, and write, |
260 | (and ulogoff which does not have tcon) | |
261 | are allowed as we start force umount */ | |
790fe579 | 262 | if ((smb_command != SMB_COM_WRITE_ANDX) && |
6ab16d24 SF |
263 | (smb_command != SMB_COM_OPEN_ANDX) && |
264 | (smb_command != SMB_COM_TREE_DISCONNECT)) { | |
790fe579 | 265 | cFYI(1, ("can not send cmd %d while umounting", |
6ab16d24 SF |
266 | smb_command)); |
267 | return -ENODEV; | |
268 | } | |
269 | } | |
270 | ||
790fe579 | 271 | if ((tcon->ses) && (tcon->ses->status != CifsExiting) && |
50c2f753 | 272 | (tcon->ses->server)) { |
1da177e4 | 273 | struct nls_table *nls_codepage; |
09d1db5c SF |
274 | /* Give Demultiplex thread up to 10 seconds to |
275 | reconnect, should be greater than cifs socket | |
276 | timeout which is 7 seconds */ | |
1da177e4 LT |
277 | while(tcon->ses->server->tcpStatus == CifsNeedReconnect) { |
278 | wait_event_interruptible_timeout(tcon->ses->server->response_q, | |
279 | (tcon->ses->server->tcpStatus == CifsGood), 10 * HZ); | |
790fe579 | 280 | if (tcon->ses->server->tcpStatus == |
09d1db5c | 281 | CifsNeedReconnect) { |
1da177e4 | 282 | /* on "soft" mounts we wait once */ |
790fe579 | 283 | if ((tcon->retry == FALSE) || |
1da177e4 | 284 | (tcon->ses->status == CifsExiting)) { |
50c2f753 SF |
285 | cFYI(1, ("gave up waiting on " |
286 | "reconnect in smb_init")); | |
1da177e4 | 287 | return -EHOSTDOWN; |
09d1db5c SF |
288 | } /* else "hard" mount - keep retrying |
289 | until process is killed or server | |
290 | comes on-line */ | |
1da177e4 LT |
291 | } else /* TCP session is reestablished now */ |
292 | break; | |
1da177e4 | 293 | } |
1da177e4 LT |
294 | nls_codepage = load_nls_default(); |
295 | /* need to prevent multiple threads trying to | |
296 | simultaneously reconnect the same SMB session */ | |
297 | down(&tcon->ses->sesSem); | |
790fe579 | 298 | if (tcon->ses->status == CifsNeedReconnect) |
50c2f753 | 299 | rc = cifs_setup_session(0, tcon->ses, |
09d1db5c | 300 | nls_codepage); |
790fe579 | 301 | if (!rc && (tcon->tidStatus == CifsNeedReconnect)) { |
1da177e4 | 302 | mark_open_files_invalid(tcon); |
09d1db5c SF |
303 | rc = CIFSTCon(0, tcon->ses, tcon->treeName, |
304 | tcon, nls_codepage); | |
1da177e4 | 305 | up(&tcon->ses->sesSem); |
8af18971 SF |
306 | /* tell server which Unix caps we support */ |
307 | if (tcon->ses->capabilities & CAP_UNIX) | |
308 | reset_cifs_unix_caps(0 /* no xid */, | |
50c2f753 | 309 | tcon, |
8af18971 SF |
310 | NULL /* do not know sb */, |
311 | NULL /* no vol info */); | |
3e84469d SF |
312 | /* BB FIXME add code to check if wsize needs |
313 | update due to negotiated smb buffer size | |
314 | shrinking */ | |
790fe579 | 315 | if (rc == 0) |
1da177e4 LT |
316 | atomic_inc(&tconInfoReconnectCount); |
317 | ||
318 | cFYI(1, ("reconnect tcon rc = %d", rc)); | |
50c2f753 SF |
319 | /* Removed call to reopen open files here. |
320 | It is safer (and faster) to reopen files | |
09d1db5c | 321 | one at a time as needed in read and write */ |
1da177e4 | 322 | |
50c2f753 | 323 | /* Check if handle based operation so we |
09d1db5c SF |
324 | know whether we can continue or not without |
325 | returning to caller to reset file handle */ | |
50c2f753 | 326 | switch (smb_command) { |
1da177e4 LT |
327 | case SMB_COM_READ_ANDX: |
328 | case SMB_COM_WRITE_ANDX: | |
329 | case SMB_COM_CLOSE: | |
330 | case SMB_COM_FIND_CLOSE2: | |
331 | case SMB_COM_LOCKING_ANDX: { | |
332 | unload_nls(nls_codepage); | |
333 | return -EAGAIN; | |
334 | } | |
335 | } | |
336 | } else { | |
337 | up(&tcon->ses->sesSem); | |
338 | } | |
339 | unload_nls(nls_codepage); | |
340 | ||
341 | } else { | |
342 | return -EIO; | |
343 | } | |
344 | } | |
790fe579 | 345 | if (rc) |
1da177e4 LT |
346 | return rc; |
347 | ||
348 | *request_buf = cifs_buf_get(); | |
349 | if (*request_buf == NULL) { | |
350 | /* BB should we add a retry in here if not a writepage? */ | |
351 | return -ENOMEM; | |
352 | } | |
353 | /* Although the original thought was we needed the response buf for */ | |
354 | /* potential retries of smb operations it turns out we can determine */ | |
355 | /* from the mid flags when the request buffer can be resent without */ | |
356 | /* having to use a second distinct buffer for the response */ | |
790fe579 | 357 | if (response_buf) |
50c2f753 | 358 | *response_buf = *request_buf; |
1da177e4 LT |
359 | |
360 | header_assemble((struct smb_hdr *) *request_buf, smb_command, tcon, | |
361 | wct /*wct */ ); | |
362 | ||
790fe579 SF |
363 | if (tcon != NULL) |
364 | cifs_stats_inc(&tcon->num_smbs_sent); | |
a4544347 | 365 | |
1da177e4 LT |
366 | return rc; |
367 | } | |
368 | ||
50c2f753 | 369 | static int validate_t2(struct smb_t2_rsp *pSMB) |
1da177e4 LT |
370 | { |
371 | int rc = -EINVAL; | |
372 | int total_size; | |
50c2f753 | 373 | char *pBCC; |
1da177e4 LT |
374 | |
375 | /* check for plausible wct, bcc and t2 data and parm sizes */ | |
376 | /* check for parm and data offset going beyond end of smb */ | |
790fe579 SF |
377 | if (pSMB->hdr.WordCount >= 10) { |
378 | if ((le16_to_cpu(pSMB->t2_rsp.ParameterOffset) <= 1024) && | |
1da177e4 LT |
379 | (le16_to_cpu(pSMB->t2_rsp.DataOffset) <= 1024)) { |
380 | /* check that bcc is at least as big as parms + data */ | |
381 | /* check that bcc is less than negotiated smb buffer */ | |
382 | total_size = le16_to_cpu(pSMB->t2_rsp.ParameterCount); | |
790fe579 | 383 | if (total_size < 512) { |
1da177e4 LT |
384 | total_size+=le16_to_cpu(pSMB->t2_rsp.DataCount); |
385 | /* BCC le converted in SendReceive */ | |
50c2f753 | 386 | pBCC = (pSMB->hdr.WordCount * 2) + |
09d1db5c | 387 | sizeof(struct smb_hdr) + |
1da177e4 | 388 | (char *)pSMB; |
790fe579 | 389 | if ((total_size <= (*(u16 *)pBCC)) && |
50c2f753 | 390 | (total_size < |
1da177e4 LT |
391 | CIFSMaxBufSize+MAX_CIFS_HDR_SIZE)) { |
392 | return 0; | |
393 | } | |
1da177e4 LT |
394 | } |
395 | } | |
396 | } | |
50c2f753 | 397 | cifs_dump_mem("Invalid transact2 SMB: ", (char *)pSMB, |
1da177e4 LT |
398 | sizeof(struct smb_t2_rsp) + 16); |
399 | return rc; | |
400 | } | |
401 | int | |
402 | CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) | |
403 | { | |
404 | NEGOTIATE_REQ *pSMB; | |
405 | NEGOTIATE_RSP *pSMBr; | |
406 | int rc = 0; | |
407 | int bytes_returned; | |
3979877e | 408 | int i; |
50c2f753 | 409 | struct TCP_Server_Info *server; |
1da177e4 | 410 | u16 count; |
750d1151 | 411 | unsigned int secFlags; |
733f99ac | 412 | u16 dialect; |
1da177e4 | 413 | |
790fe579 | 414 | if (ses->server) |
1da177e4 LT |
415 | server = ses->server; |
416 | else { | |
417 | rc = -EIO; | |
418 | return rc; | |
419 | } | |
420 | rc = smb_init(SMB_COM_NEGOTIATE, 0, NULL /* no tcon yet */ , | |
421 | (void **) &pSMB, (void **) &pSMBr); | |
422 | if (rc) | |
423 | return rc; | |
750d1151 SF |
424 | |
425 | /* if any of auth flags (ie not sign or seal) are overriden use them */ | |
790fe579 | 426 | if (ses->overrideSecFlg & (~(CIFSSEC_MUST_SIGN | CIFSSEC_MUST_SEAL))) |
762e5ab7 | 427 | secFlags = ses->overrideSecFlg; /* BB FIXME fix sign flags? */ |
750d1151 SF |
428 | else /* if override flags set only sign/seal OR them with global auth */ |
429 | secFlags = extended_security | ses->overrideSecFlg; | |
430 | ||
762e5ab7 | 431 | cFYI(1, ("secFlags 0x%x", secFlags)); |
f40c5628 | 432 | |
1982c344 | 433 | pSMB->hdr.Mid = GetNextMid(server); |
100c1ddc YSW |
434 | pSMB->hdr.Flags2 |= (SMBFLG2_UNICODE | SMBFLG2_ERR_STATUS); |
435 | if ((secFlags & CIFSSEC_MUST_KRB5) == CIFSSEC_MUST_KRB5) | |
254e55ed | 436 | pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC; |
50c2f753 | 437 | |
3979877e | 438 | count = 0; |
50c2f753 | 439 | for (i = 0; i < CIFS_NUM_PROT; i++) { |
3979877e SF |
440 | strncpy(pSMB->DialectsArray+count, protocols[i].name, 16); |
441 | count += strlen(protocols[i].name) + 1; | |
442 | /* null at end of source and target buffers anyway */ | |
443 | } | |
1da177e4 LT |
444 | pSMB->hdr.smb_buf_length += count; |
445 | pSMB->ByteCount = cpu_to_le16(count); | |
446 | ||
447 | rc = SendReceive(xid, ses, (struct smb_hdr *) pSMB, | |
448 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
50c2f753 | 449 | if (rc != 0) |
254e55ed SF |
450 | goto neg_err_exit; |
451 | ||
733f99ac | 452 | dialect = le16_to_cpu(pSMBr->DialectIndex); |
790fe579 | 453 | cFYI(1, ("Dialect: %d", dialect)); |
254e55ed | 454 | /* Check wct = 1 error case */ |
790fe579 | 455 | if ((pSMBr->hdr.WordCount < 13) || (dialect == BAD_PROT)) { |
254e55ed | 456 | /* core returns wct = 1, but we do not ask for core - otherwise |
50c2f753 | 457 | small wct just comes when dialect index is -1 indicating we |
254e55ed SF |
458 | could not negotiate a common dialect */ |
459 | rc = -EOPNOTSUPP; | |
460 | goto neg_err_exit; | |
50c2f753 | 461 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
790fe579 | 462 | } else if ((pSMBr->hdr.WordCount == 13) |
733f99ac AV |
463 | && ((dialect == LANMAN_PROT) |
464 | || (dialect == LANMAN2_PROT))) { | |
b815f1e5 | 465 | __s16 tmp; |
50c2f753 | 466 | struct lanman_neg_rsp *rsp = (struct lanman_neg_rsp *)pSMBr; |
254e55ed | 467 | |
790fe579 | 468 | if ((secFlags & CIFSSEC_MAY_LANMAN) || |
750d1151 | 469 | (secFlags & CIFSSEC_MAY_PLNTXT)) |
254e55ed SF |
470 | server->secType = LANMAN; |
471 | else { | |
472 | cERROR(1, ("mount failed weak security disabled" | |
473 | " in /proc/fs/cifs/SecurityFlags")); | |
3979877e SF |
474 | rc = -EOPNOTSUPP; |
475 | goto neg_err_exit; | |
50c2f753 | 476 | } |
254e55ed SF |
477 | server->secMode = (__u8)le16_to_cpu(rsp->SecurityMode); |
478 | server->maxReq = le16_to_cpu(rsp->MaxMpxCount); | |
479 | server->maxBuf = min((__u32)le16_to_cpu(rsp->MaxBufSize), | |
3979877e | 480 | (__u32)CIFSMaxBufSize + MAX_CIFS_HDR_SIZE); |
254e55ed SF |
481 | GETU32(server->sessid) = le32_to_cpu(rsp->SessionKey); |
482 | /* even though we do not use raw we might as well set this | |
483 | accurately, in case we ever find a need for it */ | |
790fe579 | 484 | if ((le16_to_cpu(rsp->RawMode) & RAW_ENABLE) == RAW_ENABLE) { |
254e55ed SF |
485 | server->maxRw = 0xFF00; |
486 | server->capabilities = CAP_MPX_MODE | CAP_RAW_MODE; | |
487 | } else { | |
488 | server->maxRw = 0;/* we do not need to use raw anyway */ | |
489 | server->capabilities = CAP_MPX_MODE; | |
490 | } | |
b815f1e5 | 491 | tmp = (__s16)le16_to_cpu(rsp->ServerTimeZone); |
1a70d652 | 492 | if (tmp == -1) { |
25ee4a98 SF |
493 | /* OS/2 often does not set timezone therefore |
494 | * we must use server time to calc time zone. | |
b815f1e5 SF |
495 | * Could deviate slightly from the right zone. |
496 | * Smallest defined timezone difference is 15 minutes | |
497 | * (i.e. Nepal). Rounding up/down is done to match | |
498 | * this requirement. | |
25ee4a98 | 499 | */ |
b815f1e5 | 500 | int val, seconds, remain, result; |
25ee4a98 SF |
501 | struct timespec ts, utc; |
502 | utc = CURRENT_TIME; | |
503 | ts = cnvrtDosUnixTm(le16_to_cpu(rsp->SrvTime.Date), | |
504 | le16_to_cpu(rsp->SrvTime.Time)); | |
50c2f753 SF |
505 | cFYI(1, ("SrvTime %d sec since 1970 (utc: %d) diff: %d", |
506 | (int)ts.tv_sec, (int)utc.tv_sec, | |
25ee4a98 | 507 | (int)(utc.tv_sec - ts.tv_sec))); |
b815f1e5 SF |
508 | val = (int)(utc.tv_sec - ts.tv_sec); |
509 | seconds = val < 0 ? -val : val; | |
947a5067 | 510 | result = (seconds / MIN_TZ_ADJ) * MIN_TZ_ADJ; |
b815f1e5 | 511 | remain = seconds % MIN_TZ_ADJ; |
790fe579 | 512 | if (remain >= (MIN_TZ_ADJ / 2)) |
b815f1e5 | 513 | result += MIN_TZ_ADJ; |
790fe579 | 514 | if (val < 0) |
b815f1e5 SF |
515 | result = - result; |
516 | server->timeAdj = result; | |
25ee4a98 | 517 | } else { |
b815f1e5 SF |
518 | server->timeAdj = (int)tmp; |
519 | server->timeAdj *= 60; /* also in seconds */ | |
25ee4a98 | 520 | } |
790fe579 | 521 | cFYI(1, ("server->timeAdj: %d seconds", server->timeAdj)); |
25ee4a98 | 522 | |
3979877e | 523 | |
254e55ed | 524 | /* BB get server time for time conversions and add |
50c2f753 | 525 | code to use it and timezone since this is not UTC */ |
3979877e | 526 | |
50c2f753 | 527 | if (rsp->EncryptionKeyLength == |
25ee4a98 | 528 | cpu_to_le16(CIFS_CRYPTO_KEY_SIZE)) { |
254e55ed SF |
529 | memcpy(server->cryptKey, rsp->EncryptionKey, |
530 | CIFS_CRYPTO_KEY_SIZE); | |
531 | } else if (server->secMode & SECMODE_PW_ENCRYPT) { | |
532 | rc = -EIO; /* need cryptkey unless plain text */ | |
533 | goto neg_err_exit; | |
534 | } | |
3979877e | 535 | |
790fe579 | 536 | cFYI(1, ("LANMAN negotiated")); |
254e55ed SF |
537 | /* we will not end up setting signing flags - as no signing |
538 | was in LANMAN and server did not return the flags on */ | |
539 | goto signing_check; | |
7c7b25bc | 540 | #else /* weak security disabled */ |
790fe579 | 541 | } else if (pSMBr->hdr.WordCount == 13) { |
50c2f753 | 542 | cERROR(1, ("mount failed, cifs module not built " |
254e55ed | 543 | "with CIFS_WEAK_PW_HASH support")); |
7c7b25bc SF |
544 | rc = -EOPNOTSUPP; |
545 | #endif /* WEAK_PW_HASH */ | |
254e55ed | 546 | goto neg_err_exit; |
790fe579 | 547 | } else if (pSMBr->hdr.WordCount != 17) { |
254e55ed SF |
548 | /* unknown wct */ |
549 | rc = -EOPNOTSUPP; | |
550 | goto neg_err_exit; | |
551 | } | |
552 | /* else wct == 17 NTLM */ | |
553 | server->secMode = pSMBr->SecurityMode; | |
790fe579 SF |
554 | if ((server->secMode & SECMODE_USER) == 0) |
555 | cFYI(1, ("share mode security")); | |
bdc4bf6e | 556 | |
790fe579 | 557 | if ((server->secMode & SECMODE_PW_ENCRYPT) == 0) |
bdc4bf6e | 558 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
750d1151 | 559 | if ((secFlags & CIFSSEC_MAY_PLNTXT) == 0) |
bdc4bf6e | 560 | #endif /* CIFS_WEAK_PW_HASH */ |
50c2f753 | 561 | cERROR(1, ("Server requests plain text password" |
254e55ed | 562 | " but client support disabled")); |
9312f675 | 563 | |
790fe579 | 564 | if ((secFlags & CIFSSEC_MUST_NTLMV2) == CIFSSEC_MUST_NTLMV2) |
254e55ed | 565 | server->secType = NTLMv2; |
790fe579 | 566 | else if (secFlags & CIFSSEC_MAY_NTLM) |
254e55ed | 567 | server->secType = NTLM; |
790fe579 | 568 | else if (secFlags & CIFSSEC_MAY_NTLMV2) |
f40c5628 SF |
569 | server->secType = NTLMv2; |
570 | /* else krb5 ... any others ... */ | |
254e55ed SF |
571 | |
572 | /* one byte, so no need to convert this or EncryptionKeyLen from | |
573 | little endian */ | |
574 | server->maxReq = le16_to_cpu(pSMBr->MaxMpxCount); | |
575 | /* probably no need to store and check maxvcs */ | |
576 | server->maxBuf = min(le32_to_cpu(pSMBr->MaxBufferSize), | |
1da177e4 | 577 | (__u32) CIFSMaxBufSize + MAX_CIFS_HDR_SIZE); |
254e55ed SF |
578 | server->maxRw = le32_to_cpu(pSMBr->MaxRawSize); |
579 | cFYI(0, ("Max buf = %d", ses->server->maxBuf)); | |
580 | GETU32(ses->server->sessid) = le32_to_cpu(pSMBr->SessionKey); | |
581 | server->capabilities = le32_to_cpu(pSMBr->Capabilities); | |
b815f1e5 SF |
582 | server->timeAdj = (int)(__s16)le16_to_cpu(pSMBr->ServerTimeZone); |
583 | server->timeAdj *= 60; | |
254e55ed SF |
584 | if (pSMBr->EncryptionKeyLength == CIFS_CRYPTO_KEY_SIZE) { |
585 | memcpy(server->cryptKey, pSMBr->u.EncryptionKey, | |
586 | CIFS_CRYPTO_KEY_SIZE); | |
587 | } else if ((pSMBr->hdr.Flags2 & SMBFLG2_EXT_SEC) | |
588 | && (pSMBr->EncryptionKeyLength == 0)) { | |
589 | /* decode security blob */ | |
590 | } else if (server->secMode & SECMODE_PW_ENCRYPT) { | |
591 | rc = -EIO; /* no crypt key only if plain text pwd */ | |
592 | goto neg_err_exit; | |
593 | } | |
1da177e4 | 594 | |
254e55ed SF |
595 | /* BB might be helpful to save off the domain of server here */ |
596 | ||
50c2f753 | 597 | if ((pSMBr->hdr.Flags2 & SMBFLG2_EXT_SEC) && |
254e55ed SF |
598 | (server->capabilities & CAP_EXTENDED_SECURITY)) { |
599 | count = pSMBr->ByteCount; | |
600 | if (count < 16) | |
601 | rc = -EIO; | |
602 | else if (count == 16) { | |
603 | server->secType = RawNTLMSSP; | |
604 | if (server->socketUseCount.counter > 1) { | |
605 | if (memcmp(server->server_GUID, | |
606 | pSMBr->u.extended_response. | |
607 | GUID, 16) != 0) { | |
608 | cFYI(1, ("server UID changed")); | |
1da177e4 | 609 | memcpy(server->server_GUID, |
254e55ed SF |
610 | pSMBr->u.extended_response.GUID, |
611 | 16); | |
1da177e4 | 612 | } |
254e55ed SF |
613 | } else |
614 | memcpy(server->server_GUID, | |
615 | pSMBr->u.extended_response.GUID, 16); | |
616 | } else { | |
617 | rc = decode_negTokenInit(pSMBr->u.extended_response. | |
618 | SecurityBlob, | |
619 | count - 16, | |
620 | &server->secType); | |
790fe579 | 621 | if (rc == 1) { |
254e55ed SF |
622 | /* BB Need to fill struct for sessetup here */ |
623 | rc = -EOPNOTSUPP; | |
624 | } else { | |
625 | rc = -EINVAL; | |
1da177e4 | 626 | } |
1da177e4 | 627 | } |
254e55ed SF |
628 | } else |
629 | server->capabilities &= ~CAP_EXTENDED_SECURITY; | |
630 | ||
6344a423 | 631 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
254e55ed | 632 | signing_check: |
6344a423 | 633 | #endif |
762e5ab7 SF |
634 | if ((secFlags & CIFSSEC_MAY_SIGN) == 0) { |
635 | /* MUST_SIGN already includes the MAY_SIGN FLAG | |
636 | so if this is zero it means that signing is disabled */ | |
637 | cFYI(1, ("Signing disabled")); | |
790fe579 | 638 | if (server->secMode & SECMODE_SIGN_REQUIRED) |
762e5ab7 SF |
639 | cERROR(1, ("Server requires " |
640 | "/proc/fs/cifs/PacketSigningEnabled " | |
641 | "to be on")); | |
50c2f753 | 642 | server->secMode &= |
254e55ed | 643 | ~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED); |
762e5ab7 SF |
644 | } else if ((secFlags & CIFSSEC_MUST_SIGN) == CIFSSEC_MUST_SIGN) { |
645 | /* signing required */ | |
38c10a1d | 646 | cFYI(1, ("Must sign - secFlags 0x%x", secFlags)); |
762e5ab7 SF |
647 | if ((server->secMode & |
648 | (SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED)) == 0) { | |
649 | cERROR(1, | |
650 | ("signing required but server lacks support")); | |
38c10a1d | 651 | rc = -EOPNOTSUPP; |
762e5ab7 SF |
652 | } else |
653 | server->secMode |= SECMODE_SIGN_REQUIRED; | |
654 | } else { | |
655 | /* signing optional ie CIFSSEC_MAY_SIGN */ | |
790fe579 | 656 | if ((server->secMode & SECMODE_SIGN_REQUIRED) == 0) |
50c2f753 | 657 | server->secMode &= |
254e55ed | 658 | ~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED); |
1da177e4 | 659 | } |
50c2f753 SF |
660 | |
661 | neg_err_exit: | |
4a6d87f1 | 662 | cifs_buf_release(pSMB); |
254e55ed | 663 | |
790fe579 | 664 | cFYI(1, ("negprot rc %d", rc)); |
1da177e4 LT |
665 | return rc; |
666 | } | |
667 | ||
668 | int | |
669 | CIFSSMBTDis(const int xid, struct cifsTconInfo *tcon) | |
670 | { | |
671 | struct smb_hdr *smb_buffer; | |
672 | struct smb_hdr *smb_buffer_response; /* BB removeme BB */ | |
673 | int rc = 0; | |
674 | int length; | |
675 | ||
676 | cFYI(1, ("In tree disconnect")); | |
677 | /* | |
678 | * If last user of the connection and | |
679 | * connection alive - disconnect it | |
680 | * If this is the last connection on the server session disconnect it | |
50c2f753 | 681 | * (and inside session disconnect we should check if tcp socket needs |
1da177e4 LT |
682 | * to be freed and kernel thread woken up). |
683 | */ | |
684 | if (tcon) | |
685 | down(&tcon->tconSem); | |
686 | else | |
687 | return -EIO; | |
688 | ||
689 | atomic_dec(&tcon->useCount); | |
690 | if (atomic_read(&tcon->useCount) > 0) { | |
691 | up(&tcon->tconSem); | |
692 | return -EBUSY; | |
693 | } | |
694 | ||
50c2f753 | 695 | /* No need to return error on this operation if tid invalidated and |
1da177e4 | 696 | closed on server already e.g. due to tcp session crashing */ |
790fe579 | 697 | if (tcon->tidStatus == CifsNeedReconnect) { |
1da177e4 | 698 | up(&tcon->tconSem); |
50c2f753 | 699 | return 0; |
1da177e4 LT |
700 | } |
701 | ||
790fe579 | 702 | if ((tcon->ses == NULL) || (tcon->ses->server == NULL)) { |
1da177e4 LT |
703 | up(&tcon->tconSem); |
704 | return -EIO; | |
705 | } | |
50c2f753 | 706 | rc = small_smb_init(SMB_COM_TREE_DISCONNECT, 0, tcon, |
09d1db5c | 707 | (void **)&smb_buffer); |
1da177e4 LT |
708 | if (rc) { |
709 | up(&tcon->tconSem); | |
710 | return rc; | |
711 | } else { | |
712 | smb_buffer_response = smb_buffer; /* BB removeme BB */ | |
cd63499c | 713 | } |
1da177e4 LT |
714 | rc = SendReceive(xid, tcon->ses, smb_buffer, smb_buffer_response, |
715 | &length, 0); | |
716 | if (rc) | |
966ca923 | 717 | cFYI(1, ("Tree disconnect failed %d", rc)); |
1da177e4 LT |
718 | |
719 | if (smb_buffer) | |
720 | cifs_small_buf_release(smb_buffer); | |
721 | up(&tcon->tconSem); | |
722 | ||
50c2f753 | 723 | /* No need to return error on this operation if tid invalidated and |
1da177e4 LT |
724 | closed on server already e.g. due to tcp session crashing */ |
725 | if (rc == -EAGAIN) | |
726 | rc = 0; | |
727 | ||
728 | return rc; | |
729 | } | |
730 | ||
731 | int | |
732 | CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses) | |
733 | { | |
734 | struct smb_hdr *smb_buffer_response; | |
735 | LOGOFF_ANDX_REQ *pSMB; | |
736 | int rc = 0; | |
737 | int length; | |
738 | ||
739 | cFYI(1, ("In SMBLogoff for session disconnect")); | |
740 | if (ses) | |
741 | down(&ses->sesSem); | |
742 | else | |
743 | return -EIO; | |
744 | ||
745 | atomic_dec(&ses->inUse); | |
746 | if (atomic_read(&ses->inUse) > 0) { | |
747 | up(&ses->sesSem); | |
748 | return -EBUSY; | |
749 | } | |
750 | rc = small_smb_init(SMB_COM_LOGOFF_ANDX, 2, NULL, (void **)&pSMB); | |
751 | if (rc) { | |
752 | up(&ses->sesSem); | |
753 | return rc; | |
754 | } | |
755 | ||
756 | smb_buffer_response = (struct smb_hdr *)pSMB; /* BB removeme BB */ | |
50c2f753 | 757 | |
790fe579 | 758 | if (ses->server) { |
1982c344 SF |
759 | pSMB->hdr.Mid = GetNextMid(ses->server); |
760 | ||
790fe579 | 761 | if (ses->server->secMode & |
1da177e4 LT |
762 | (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) |
763 | pSMB->hdr.Flags2 |= SMBFLG2_SECURITY_SIGNATURE; | |
764 | } | |
765 | ||
766 | pSMB->hdr.Uid = ses->Suid; | |
767 | ||
768 | pSMB->AndXCommand = 0xFF; | |
769 | rc = SendReceive(xid, ses, (struct smb_hdr *) pSMB, | |
770 | smb_buffer_response, &length, 0); | |
771 | if (ses->server) { | |
772 | atomic_dec(&ses->server->socketUseCount); | |
773 | if (atomic_read(&ses->server->socketUseCount) == 0) { | |
774 | spin_lock(&GlobalMid_Lock); | |
775 | ses->server->tcpStatus = CifsExiting; | |
776 | spin_unlock(&GlobalMid_Lock); | |
777 | rc = -ESHUTDOWN; | |
778 | } | |
779 | } | |
a59c6586 | 780 | up(&ses->sesSem); |
4a6d87f1 | 781 | cifs_small_buf_release(pSMB); |
1da177e4 LT |
782 | |
783 | /* if session dead then we do not need to do ulogoff, | |
50c2f753 | 784 | since server closed smb session, no sense reporting |
1da177e4 LT |
785 | error */ |
786 | if (rc == -EAGAIN) | |
787 | rc = 0; | |
788 | return rc; | |
789 | } | |
790 | ||
2d785a50 SF |
791 | int |
792 | CIFSPOSIXDelFile(const int xid, struct cifsTconInfo *tcon, const char *fileName, | |
793 | __u16 type, const struct nls_table *nls_codepage, int remap) | |
794 | { | |
795 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
796 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
797 | struct unlink_psx_rq *pRqD; | |
798 | int name_len; | |
799 | int rc = 0; | |
800 | int bytes_returned = 0; | |
801 | __u16 params, param_offset, offset, byte_count; | |
802 | ||
803 | cFYI(1, ("In POSIX delete")); | |
804 | PsxDelete: | |
805 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
806 | (void **) &pSMBr); | |
807 | if (rc) | |
808 | return rc; | |
809 | ||
810 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
811 | name_len = | |
812 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, | |
813 | PATH_MAX, nls_codepage, remap); | |
814 | name_len++; /* trailing null */ | |
815 | name_len *= 2; | |
816 | } else { /* BB add path length overrun check */ | |
817 | name_len = strnlen(fileName, PATH_MAX); | |
818 | name_len++; /* trailing null */ | |
819 | strncpy(pSMB->FileName, fileName, name_len); | |
820 | } | |
821 | ||
822 | params = 6 + name_len; | |
823 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
824 | pSMB->MaxDataCount = 0; /* BB double check this with jra */ | |
825 | pSMB->MaxSetupCount = 0; | |
826 | pSMB->Reserved = 0; | |
827 | pSMB->Flags = 0; | |
828 | pSMB->Timeout = 0; | |
829 | pSMB->Reserved2 = 0; | |
830 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
831 | InformationLevel) - 4; | |
832 | offset = param_offset + params; | |
833 | ||
834 | /* Setup pointer to Request Data (inode type) */ | |
835 | pRqD = (struct unlink_psx_rq *)(((char *)&pSMB->hdr.Protocol) + offset); | |
836 | pRqD->type = cpu_to_le16(type); | |
837 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
838 | pSMB->DataOffset = cpu_to_le16(offset); | |
839 | pSMB->SetupCount = 1; | |
840 | pSMB->Reserved3 = 0; | |
841 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
842 | byte_count = 3 /* pad */ + params + sizeof(struct unlink_psx_rq); | |
843 | ||
844 | pSMB->DataCount = cpu_to_le16(sizeof(struct unlink_psx_rq)); | |
845 | pSMB->TotalDataCount = cpu_to_le16(sizeof(struct unlink_psx_rq)); | |
846 | pSMB->ParameterCount = cpu_to_le16(params); | |
847 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
848 | pSMB->InformationLevel = cpu_to_le16(SMB_POSIX_UNLINK); | |
849 | pSMB->Reserved4 = 0; | |
850 | pSMB->hdr.smb_buf_length += byte_count; | |
851 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
852 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
853 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
854 | if (rc) { | |
855 | cFYI(1, ("Posix delete returned %d", rc)); | |
856 | } | |
857 | cifs_buf_release(pSMB); | |
858 | ||
859 | cifs_stats_inc(&tcon->num_deletes); | |
860 | ||
861 | if (rc == -EAGAIN) | |
862 | goto PsxDelete; | |
863 | ||
864 | return rc; | |
865 | } | |
866 | ||
1da177e4 | 867 | int |
737b758c SF |
868 | CIFSSMBDelFile(const int xid, struct cifsTconInfo *tcon, const char *fileName, |
869 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
870 | { |
871 | DELETE_FILE_REQ *pSMB = NULL; | |
872 | DELETE_FILE_RSP *pSMBr = NULL; | |
873 | int rc = 0; | |
874 | int bytes_returned; | |
875 | int name_len; | |
876 | ||
877 | DelFileRetry: | |
878 | rc = smb_init(SMB_COM_DELETE, 1, tcon, (void **) &pSMB, | |
879 | (void **) &pSMBr); | |
880 | if (rc) | |
881 | return rc; | |
882 | ||
883 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
884 | name_len = | |
50c2f753 | 885 | cifsConvertToUCS((__le16 *) pSMB->fileName, fileName, |
737b758c | 886 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
887 | name_len++; /* trailing null */ |
888 | name_len *= 2; | |
09d1db5c | 889 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
890 | name_len = strnlen(fileName, PATH_MAX); |
891 | name_len++; /* trailing null */ | |
892 | strncpy(pSMB->fileName, fileName, name_len); | |
893 | } | |
894 | pSMB->SearchAttributes = | |
895 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM); | |
896 | pSMB->BufferFormat = 0x04; | |
897 | pSMB->hdr.smb_buf_length += name_len + 1; | |
898 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
899 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
900 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 901 | cifs_stats_inc(&tcon->num_deletes); |
1da177e4 LT |
902 | if (rc) { |
903 | cFYI(1, ("Error in RMFile = %d", rc)); | |
50c2f753 | 904 | } |
1da177e4 LT |
905 | |
906 | cifs_buf_release(pSMB); | |
907 | if (rc == -EAGAIN) | |
908 | goto DelFileRetry; | |
909 | ||
910 | return rc; | |
911 | } | |
912 | ||
913 | int | |
50c2f753 | 914 | CIFSSMBRmDir(const int xid, struct cifsTconInfo *tcon, const char *dirName, |
737b758c | 915 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
916 | { |
917 | DELETE_DIRECTORY_REQ *pSMB = NULL; | |
918 | DELETE_DIRECTORY_RSP *pSMBr = NULL; | |
919 | int rc = 0; | |
920 | int bytes_returned; | |
921 | int name_len; | |
922 | ||
923 | cFYI(1, ("In CIFSSMBRmDir")); | |
924 | RmDirRetry: | |
925 | rc = smb_init(SMB_COM_DELETE_DIRECTORY, 0, tcon, (void **) &pSMB, | |
926 | (void **) &pSMBr); | |
927 | if (rc) | |
928 | return rc; | |
929 | ||
930 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
737b758c SF |
931 | name_len = cifsConvertToUCS((__le16 *) pSMB->DirName, dirName, |
932 | PATH_MAX, nls_codepage, remap); | |
1da177e4 LT |
933 | name_len++; /* trailing null */ |
934 | name_len *= 2; | |
09d1db5c | 935 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
936 | name_len = strnlen(dirName, PATH_MAX); |
937 | name_len++; /* trailing null */ | |
938 | strncpy(pSMB->DirName, dirName, name_len); | |
939 | } | |
940 | ||
941 | pSMB->BufferFormat = 0x04; | |
942 | pSMB->hdr.smb_buf_length += name_len + 1; | |
943 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
944 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
945 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 946 | cifs_stats_inc(&tcon->num_rmdirs); |
1da177e4 LT |
947 | if (rc) { |
948 | cFYI(1, ("Error in RMDir = %d", rc)); | |
949 | } | |
1da177e4 LT |
950 | |
951 | cifs_buf_release(pSMB); | |
952 | if (rc == -EAGAIN) | |
953 | goto RmDirRetry; | |
954 | return rc; | |
955 | } | |
956 | ||
957 | int | |
958 | CIFSSMBMkDir(const int xid, struct cifsTconInfo *tcon, | |
737b758c | 959 | const char *name, const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
960 | { |
961 | int rc = 0; | |
962 | CREATE_DIRECTORY_REQ *pSMB = NULL; | |
963 | CREATE_DIRECTORY_RSP *pSMBr = NULL; | |
964 | int bytes_returned; | |
965 | int name_len; | |
966 | ||
967 | cFYI(1, ("In CIFSSMBMkDir")); | |
968 | MkDirRetry: | |
969 | rc = smb_init(SMB_COM_CREATE_DIRECTORY, 0, tcon, (void **) &pSMB, | |
970 | (void **) &pSMBr); | |
971 | if (rc) | |
972 | return rc; | |
973 | ||
974 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
50c2f753 | 975 | name_len = cifsConvertToUCS((__le16 *) pSMB->DirName, name, |
737b758c | 976 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
977 | name_len++; /* trailing null */ |
978 | name_len *= 2; | |
09d1db5c | 979 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
980 | name_len = strnlen(name, PATH_MAX); |
981 | name_len++; /* trailing null */ | |
982 | strncpy(pSMB->DirName, name, name_len); | |
983 | } | |
984 | ||
985 | pSMB->BufferFormat = 0x04; | |
986 | pSMB->hdr.smb_buf_length += name_len + 1; | |
987 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
988 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
989 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 990 | cifs_stats_inc(&tcon->num_mkdirs); |
1da177e4 LT |
991 | if (rc) { |
992 | cFYI(1, ("Error in Mkdir = %d", rc)); | |
993 | } | |
a5a2b489 | 994 | |
1da177e4 LT |
995 | cifs_buf_release(pSMB); |
996 | if (rc == -EAGAIN) | |
997 | goto MkDirRetry; | |
998 | return rc; | |
999 | } | |
1000 | ||
2dd29d31 SF |
1001 | int |
1002 | CIFSPOSIXCreate(const int xid, struct cifsTconInfo *tcon, __u32 posix_flags, | |
1003 | __u64 mode, __u16 * netfid, FILE_UNIX_BASIC_INFO *pRetData, | |
50c2f753 | 1004 | __u32 *pOplock, const char *name, |
2dd29d31 SF |
1005 | const struct nls_table *nls_codepage, int remap) |
1006 | { | |
1007 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
1008 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
1009 | int name_len; | |
1010 | int rc = 0; | |
1011 | int bytes_returned = 0; | |
2dd29d31 SF |
1012 | __u16 params, param_offset, offset, byte_count, count; |
1013 | OPEN_PSX_REQ * pdata; | |
1014 | OPEN_PSX_RSP * psx_rsp; | |
1015 | ||
1016 | cFYI(1, ("In POSIX Create")); | |
1017 | PsxCreat: | |
1018 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
1019 | (void **) &pSMBr); | |
1020 | if (rc) | |
1021 | return rc; | |
1022 | ||
1023 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1024 | name_len = | |
1025 | cifsConvertToUCS((__le16 *) pSMB->FileName, name, | |
1026 | PATH_MAX, nls_codepage, remap); | |
1027 | name_len++; /* trailing null */ | |
1028 | name_len *= 2; | |
1029 | } else { /* BB improve the check for buffer overruns BB */ | |
1030 | name_len = strnlen(name, PATH_MAX); | |
1031 | name_len++; /* trailing null */ | |
1032 | strncpy(pSMB->FileName, name, name_len); | |
1033 | } | |
1034 | ||
1035 | params = 6 + name_len; | |
1036 | count = sizeof(OPEN_PSX_REQ); | |
1037 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
1038 | pSMB->MaxDataCount = cpu_to_le16(1000); /* large enough */ | |
1039 | pSMB->MaxSetupCount = 0; | |
1040 | pSMB->Reserved = 0; | |
1041 | pSMB->Flags = 0; | |
1042 | pSMB->Timeout = 0; | |
1043 | pSMB->Reserved2 = 0; | |
1044 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 1045 | InformationLevel) - 4; |
2dd29d31 | 1046 | offset = param_offset + params; |
2dd29d31 SF |
1047 | pdata = (OPEN_PSX_REQ *)(((char *)&pSMB->hdr.Protocol) + offset); |
1048 | pdata->Level = SMB_QUERY_FILE_UNIX_BASIC; | |
1049 | pdata->Permissions = cpu_to_le64(mode); | |
50c2f753 | 1050 | pdata->PosixOpenFlags = cpu_to_le32(posix_flags); |
2dd29d31 SF |
1051 | pdata->OpenFlags = cpu_to_le32(*pOplock); |
1052 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
1053 | pSMB->DataOffset = cpu_to_le16(offset); | |
1054 | pSMB->SetupCount = 1; | |
1055 | pSMB->Reserved3 = 0; | |
1056 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
1057 | byte_count = 3 /* pad */ + params + count; | |
1058 | ||
1059 | pSMB->DataCount = cpu_to_le16(count); | |
1060 | pSMB->ParameterCount = cpu_to_le16(params); | |
1061 | pSMB->TotalDataCount = pSMB->DataCount; | |
1062 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
1063 | pSMB->InformationLevel = cpu_to_le16(SMB_POSIX_OPEN); | |
1064 | pSMB->Reserved4 = 0; | |
50c2f753 | 1065 | pSMB->hdr.smb_buf_length += byte_count; |
2dd29d31 SF |
1066 | pSMB->ByteCount = cpu_to_le16(byte_count); |
1067 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1068 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
1069 | if (rc) { | |
1070 | cFYI(1, ("Posix create returned %d", rc)); | |
1071 | goto psx_create_err; | |
1072 | } | |
1073 | ||
790fe579 | 1074 | cFYI(1, ("copying inode info")); |
2dd29d31 SF |
1075 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
1076 | ||
1077 | if (rc || (pSMBr->ByteCount < sizeof(OPEN_PSX_RSP))) { | |
1078 | rc = -EIO; /* bad smb */ | |
1079 | goto psx_create_err; | |
1080 | } | |
1081 | ||
1082 | /* copy return information to pRetData */ | |
50c2f753 | 1083 | psx_rsp = (OPEN_PSX_RSP *)((char *) &pSMBr->hdr.Protocol |
2dd29d31 | 1084 | + le16_to_cpu(pSMBr->t2.DataOffset)); |
50c2f753 | 1085 | |
2dd29d31 | 1086 | *pOplock = le16_to_cpu(psx_rsp->OplockFlags); |
790fe579 | 1087 | if (netfid) |
2dd29d31 SF |
1088 | *netfid = psx_rsp->Fid; /* cifs fid stays in le */ |
1089 | /* Let caller know file was created so we can set the mode. */ | |
1090 | /* Do we care about the CreateAction in any other cases? */ | |
790fe579 | 1091 | if (cpu_to_le32(FILE_CREATE) == psx_rsp->CreateAction) |
2dd29d31 SF |
1092 | *pOplock |= CIFS_CREATE_ACTION; |
1093 | /* check to make sure response data is there */ | |
790fe579 | 1094 | if (psx_rsp->ReturnedLevel != SMB_QUERY_FILE_UNIX_BASIC) { |
cbac3cba SF |
1095 | pRetData->Type = -1; /* unknown */ |
1096 | #ifdef CONFIG_CIFS_DEBUG2 | |
790fe579 | 1097 | cFYI(1, ("unknown type")); |
cbac3cba SF |
1098 | #endif |
1099 | } else { | |
790fe579 | 1100 | if (pSMBr->ByteCount < sizeof(OPEN_PSX_RSP) |
2dd29d31 | 1101 | + sizeof(FILE_UNIX_BASIC_INFO)) { |
50c2f753 | 1102 | cERROR(1, ("Open response data too small")); |
2dd29d31 SF |
1103 | pRetData->Type = -1; |
1104 | goto psx_create_err; | |
1105 | } | |
50c2f753 | 1106 | memcpy((char *) pRetData, |
cbac3cba | 1107 | (char *)psx_rsp + sizeof(OPEN_PSX_RSP), |
2dd29d31 SF |
1108 | sizeof (FILE_UNIX_BASIC_INFO)); |
1109 | } | |
2dd29d31 SF |
1110 | |
1111 | psx_create_err: | |
1112 | cifs_buf_release(pSMB); | |
1113 | ||
1114 | cifs_stats_inc(&tcon->num_mkdirs); | |
1115 | ||
1116 | if (rc == -EAGAIN) | |
1117 | goto PsxCreat; | |
1118 | ||
50c2f753 | 1119 | return rc; |
2dd29d31 SF |
1120 | } |
1121 | ||
a9d02ad4 SF |
1122 | static __u16 convert_disposition(int disposition) |
1123 | { | |
1124 | __u16 ofun = 0; | |
1125 | ||
1126 | switch (disposition) { | |
1127 | case FILE_SUPERSEDE: | |
1128 | ofun = SMBOPEN_OCREATE | SMBOPEN_OTRUNC; | |
1129 | break; | |
1130 | case FILE_OPEN: | |
1131 | ofun = SMBOPEN_OAPPEND; | |
1132 | break; | |
1133 | case FILE_CREATE: | |
1134 | ofun = SMBOPEN_OCREATE; | |
1135 | break; | |
1136 | case FILE_OPEN_IF: | |
1137 | ofun = SMBOPEN_OCREATE | SMBOPEN_OAPPEND; | |
1138 | break; | |
1139 | case FILE_OVERWRITE: | |
1140 | ofun = SMBOPEN_OTRUNC; | |
1141 | break; | |
1142 | case FILE_OVERWRITE_IF: | |
1143 | ofun = SMBOPEN_OCREATE | SMBOPEN_OTRUNC; | |
1144 | break; | |
1145 | default: | |
790fe579 | 1146 | cFYI(1, ("unknown disposition %d", disposition)); |
a9d02ad4 SF |
1147 | ofun = SMBOPEN_OAPPEND; /* regular open */ |
1148 | } | |
1149 | return ofun; | |
1150 | } | |
1151 | ||
1152 | int | |
1153 | SMBLegacyOpen(const int xid, struct cifsTconInfo *tcon, | |
1154 | const char *fileName, const int openDisposition, | |
1155 | const int access_flags, const int create_options, __u16 * netfid, | |
50c2f753 | 1156 | int *pOplock, FILE_ALL_INFO * pfile_info, |
a9d02ad4 SF |
1157 | const struct nls_table *nls_codepage, int remap) |
1158 | { | |
1159 | int rc = -EACCES; | |
1160 | OPENX_REQ *pSMB = NULL; | |
1161 | OPENX_RSP *pSMBr = NULL; | |
1162 | int bytes_returned; | |
1163 | int name_len; | |
1164 | __u16 count; | |
1165 | ||
1166 | OldOpenRetry: | |
1167 | rc = smb_init(SMB_COM_OPEN_ANDX, 15, tcon, (void **) &pSMB, | |
1168 | (void **) &pSMBr); | |
1169 | if (rc) | |
1170 | return rc; | |
1171 | ||
1172 | pSMB->AndXCommand = 0xFF; /* none */ | |
1173 | ||
1174 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1175 | count = 1; /* account for one byte pad to word boundary */ | |
1176 | name_len = | |
1177 | cifsConvertToUCS((__le16 *) (pSMB->fileName + 1), | |
1178 | fileName, PATH_MAX, nls_codepage, remap); | |
1179 | name_len++; /* trailing null */ | |
1180 | name_len *= 2; | |
1181 | } else { /* BB improve check for buffer overruns BB */ | |
1182 | count = 0; /* no pad */ | |
1183 | name_len = strnlen(fileName, PATH_MAX); | |
1184 | name_len++; /* trailing null */ | |
1185 | strncpy(pSMB->fileName, fileName, name_len); | |
1186 | } | |
1187 | if (*pOplock & REQ_OPLOCK) | |
1188 | pSMB->OpenFlags = cpu_to_le16(REQ_OPLOCK); | |
1189 | else if (*pOplock & REQ_BATCHOPLOCK) { | |
1190 | pSMB->OpenFlags = cpu_to_le16(REQ_BATCHOPLOCK); | |
1191 | } | |
1192 | pSMB->OpenFlags |= cpu_to_le16(REQ_MORE_INFO); | |
1193 | /* BB fixme add conversion for access_flags to bits 0 - 2 of mode */ | |
1194 | /* 0 = read | |
1195 | 1 = write | |
1196 | 2 = rw | |
1197 | 3 = execute | |
50c2f753 | 1198 | */ |
a9d02ad4 SF |
1199 | pSMB->Mode = cpu_to_le16(2); |
1200 | pSMB->Mode |= cpu_to_le16(0x40); /* deny none */ | |
1201 | /* set file as system file if special file such | |
1202 | as fifo and server expecting SFU style and | |
1203 | no Unix extensions */ | |
1204 | ||
790fe579 SF |
1205 | if (create_options & CREATE_OPTION_SPECIAL) |
1206 | pSMB->FileAttributes = cpu_to_le16(ATTR_SYSTEM); | |
1207 | else | |
3e87d803 | 1208 | pSMB->FileAttributes = cpu_to_le16(0/*ATTR_NORMAL*/); /* BB FIXME */ |
a9d02ad4 SF |
1209 | |
1210 | /* if ((omode & S_IWUGO) == 0) | |
1211 | pSMB->FileAttributes |= cpu_to_le32(ATTR_READONLY);*/ | |
1212 | /* Above line causes problems due to vfs splitting create into two | |
1213 | pieces - need to set mode after file created not while it is | |
1214 | being created */ | |
1215 | ||
1216 | /* BB FIXME BB */ | |
50c2f753 SF |
1217 | /* pSMB->CreateOptions = cpu_to_le32(create_options & |
1218 | CREATE_OPTIONS_MASK); */ | |
a9d02ad4 | 1219 | /* BB FIXME END BB */ |
3e87d803 SF |
1220 | |
1221 | pSMB->Sattr = cpu_to_le16(ATTR_HIDDEN | ATTR_SYSTEM | ATTR_DIRECTORY); | |
70ca734a | 1222 | pSMB->OpenFunction = cpu_to_le16(convert_disposition(openDisposition)); |
a9d02ad4 SF |
1223 | count += name_len; |
1224 | pSMB->hdr.smb_buf_length += count; | |
1225 | ||
1226 | pSMB->ByteCount = cpu_to_le16(count); | |
1227 | /* long_op set to 1 to allow for oplock break timeouts */ | |
1228 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
50c2f753 | 1229 | (struct smb_hdr *) pSMBr, &bytes_returned, 1); |
a9d02ad4 SF |
1230 | cifs_stats_inc(&tcon->num_opens); |
1231 | if (rc) { | |
1232 | cFYI(1, ("Error in Open = %d", rc)); | |
1233 | } else { | |
1234 | /* BB verify if wct == 15 */ | |
1235 | ||
1236 | /* *pOplock = pSMBr->OplockLevel; */ /* BB take from action field BB */ | |
1237 | ||
1238 | *netfid = pSMBr->Fid; /* cifs fid stays in le */ | |
1239 | /* Let caller know file was created so we can set the mode. */ | |
1240 | /* Do we care about the CreateAction in any other cases? */ | |
1241 | /* BB FIXME BB */ | |
790fe579 | 1242 | /* if (cpu_to_le32(FILE_CREATE) == pSMBr->CreateAction) |
a9d02ad4 SF |
1243 | *pOplock |= CIFS_CREATE_ACTION; */ |
1244 | /* BB FIXME END */ | |
1245 | ||
790fe579 | 1246 | if (pfile_info) { |
a9d02ad4 SF |
1247 | pfile_info->CreationTime = 0; /* BB convert CreateTime*/ |
1248 | pfile_info->LastAccessTime = 0; /* BB fixme */ | |
1249 | pfile_info->LastWriteTime = 0; /* BB fixme */ | |
1250 | pfile_info->ChangeTime = 0; /* BB fixme */ | |
70ca734a | 1251 | pfile_info->Attributes = |
50c2f753 | 1252 | cpu_to_le32(le16_to_cpu(pSMBr->FileAttributes)); |
a9d02ad4 | 1253 | /* the file_info buf is endian converted by caller */ |
70ca734a SF |
1254 | pfile_info->AllocationSize = |
1255 | cpu_to_le64(le32_to_cpu(pSMBr->EndOfFile)); | |
1256 | pfile_info->EndOfFile = pfile_info->AllocationSize; | |
a9d02ad4 SF |
1257 | pfile_info->NumberOfLinks = cpu_to_le32(1); |
1258 | } | |
1259 | } | |
1260 | ||
1261 | cifs_buf_release(pSMB); | |
1262 | if (rc == -EAGAIN) | |
1263 | goto OldOpenRetry; | |
1264 | return rc; | |
1265 | } | |
1266 | ||
1da177e4 LT |
1267 | int |
1268 | CIFSSMBOpen(const int xid, struct cifsTconInfo *tcon, | |
1269 | const char *fileName, const int openDisposition, | |
1270 | const int access_flags, const int create_options, __u16 * netfid, | |
50c2f753 | 1271 | int *pOplock, FILE_ALL_INFO * pfile_info, |
737b758c | 1272 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
1273 | { |
1274 | int rc = -EACCES; | |
1275 | OPEN_REQ *pSMB = NULL; | |
1276 | OPEN_RSP *pSMBr = NULL; | |
1277 | int bytes_returned; | |
1278 | int name_len; | |
1279 | __u16 count; | |
1280 | ||
1281 | openRetry: | |
1282 | rc = smb_init(SMB_COM_NT_CREATE_ANDX, 24, tcon, (void **) &pSMB, | |
1283 | (void **) &pSMBr); | |
1284 | if (rc) | |
1285 | return rc; | |
1286 | ||
1287 | pSMB->AndXCommand = 0xFF; /* none */ | |
1288 | ||
1289 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1290 | count = 1; /* account for one byte pad to word boundary */ | |
1291 | name_len = | |
b1a45695 | 1292 | cifsConvertToUCS((__le16 *) (pSMB->fileName + 1), |
737b758c | 1293 | fileName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1294 | name_len++; /* trailing null */ |
1295 | name_len *= 2; | |
1296 | pSMB->NameLength = cpu_to_le16(name_len); | |
09d1db5c | 1297 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
1298 | count = 0; /* no pad */ |
1299 | name_len = strnlen(fileName, PATH_MAX); | |
1300 | name_len++; /* trailing null */ | |
1301 | pSMB->NameLength = cpu_to_le16(name_len); | |
1302 | strncpy(pSMB->fileName, fileName, name_len); | |
1303 | } | |
1304 | if (*pOplock & REQ_OPLOCK) | |
1305 | pSMB->OpenFlags = cpu_to_le32(REQ_OPLOCK); | |
1306 | else if (*pOplock & REQ_BATCHOPLOCK) { | |
1307 | pSMB->OpenFlags = cpu_to_le32(REQ_BATCHOPLOCK); | |
1308 | } | |
1309 | pSMB->DesiredAccess = cpu_to_le32(access_flags); | |
1310 | pSMB->AllocationSize = 0; | |
eda3c029 SF |
1311 | /* set file as system file if special file such |
1312 | as fifo and server expecting SFU style and | |
1313 | no Unix extensions */ | |
790fe579 | 1314 | if (create_options & CREATE_OPTION_SPECIAL) |
eda3c029 SF |
1315 | pSMB->FileAttributes = cpu_to_le32(ATTR_SYSTEM); |
1316 | else | |
1317 | pSMB->FileAttributes = cpu_to_le32(ATTR_NORMAL); | |
1da177e4 LT |
1318 | /* XP does not handle ATTR_POSIX_SEMANTICS */ |
1319 | /* but it helps speed up case sensitive checks for other | |
1320 | servers such as Samba */ | |
1321 | if (tcon->ses->capabilities & CAP_UNIX) | |
1322 | pSMB->FileAttributes |= cpu_to_le32(ATTR_POSIX_SEMANTICS); | |
1323 | ||
1324 | /* if ((omode & S_IWUGO) == 0) | |
1325 | pSMB->FileAttributes |= cpu_to_le32(ATTR_READONLY);*/ | |
1326 | /* Above line causes problems due to vfs splitting create into two | |
1327 | pieces - need to set mode after file created not while it is | |
1328 | being created */ | |
1329 | pSMB->ShareAccess = cpu_to_le32(FILE_SHARE_ALL); | |
1330 | pSMB->CreateDisposition = cpu_to_le32(openDisposition); | |
eda3c029 | 1331 | pSMB->CreateOptions = cpu_to_le32(create_options & CREATE_OPTIONS_MASK); |
09d1db5c SF |
1332 | /* BB Expirement with various impersonation levels and verify */ |
1333 | pSMB->ImpersonationLevel = cpu_to_le32(SECURITY_IMPERSONATION); | |
1da177e4 LT |
1334 | pSMB->SecurityFlags = |
1335 | SECURITY_CONTEXT_TRACKING | SECURITY_EFFECTIVE_ONLY; | |
1336 | ||
1337 | count += name_len; | |
1338 | pSMB->hdr.smb_buf_length += count; | |
1339 | ||
1340 | pSMB->ByteCount = cpu_to_le16(count); | |
1341 | /* long_op set to 1 to allow for oplock break timeouts */ | |
1342 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1343 | (struct smb_hdr *) pSMBr, &bytes_returned, 1); | |
a4544347 | 1344 | cifs_stats_inc(&tcon->num_opens); |
1da177e4 LT |
1345 | if (rc) { |
1346 | cFYI(1, ("Error in Open = %d", rc)); | |
1347 | } else { | |
09d1db5c | 1348 | *pOplock = pSMBr->OplockLevel; /* 1 byte no need to le_to_cpu */ |
1da177e4 LT |
1349 | *netfid = pSMBr->Fid; /* cifs fid stays in le */ |
1350 | /* Let caller know file was created so we can set the mode. */ | |
1351 | /* Do we care about the CreateAction in any other cases? */ | |
790fe579 | 1352 | if (cpu_to_le32(FILE_CREATE) == pSMBr->CreateAction) |
50c2f753 | 1353 | *pOplock |= CIFS_CREATE_ACTION; |
790fe579 | 1354 | if (pfile_info) { |
50c2f753 | 1355 | memcpy((char *)pfile_info, (char *)&pSMBr->CreationTime, |
1da177e4 LT |
1356 | 36 /* CreationTime to Attributes */); |
1357 | /* the file_info buf is endian converted by caller */ | |
1358 | pfile_info->AllocationSize = pSMBr->AllocationSize; | |
1359 | pfile_info->EndOfFile = pSMBr->EndOfFile; | |
1360 | pfile_info->NumberOfLinks = cpu_to_le32(1); | |
1361 | } | |
1da177e4 | 1362 | } |
a5a2b489 | 1363 | |
1da177e4 LT |
1364 | cifs_buf_release(pSMB); |
1365 | if (rc == -EAGAIN) | |
1366 | goto openRetry; | |
1367 | return rc; | |
1368 | } | |
1369 | ||
1da177e4 | 1370 | int |
50c2f753 SF |
1371 | CIFSSMBRead(const int xid, struct cifsTconInfo *tcon, const int netfid, |
1372 | const unsigned int count, const __u64 lseek, unsigned int *nbytes, | |
1373 | char **buf, int *pbuf_type) | |
1da177e4 LT |
1374 | { |
1375 | int rc = -EACCES; | |
1376 | READ_REQ *pSMB = NULL; | |
1377 | READ_RSP *pSMBr = NULL; | |
1378 | char *pReadData = NULL; | |
bfa0d75a | 1379 | int wct; |
ec637e3f SF |
1380 | int resp_buf_type = 0; |
1381 | struct kvec iov[1]; | |
1da177e4 | 1382 | |
790fe579 SF |
1383 | cFYI(1, ("Reading %d bytes on fid %d", count, netfid)); |
1384 | if (tcon->ses->capabilities & CAP_LARGE_FILES) | |
bfa0d75a SF |
1385 | wct = 12; |
1386 | else | |
1387 | wct = 10; /* old style read */ | |
1da177e4 LT |
1388 | |
1389 | *nbytes = 0; | |
ec637e3f | 1390 | rc = small_smb_init(SMB_COM_READ_ANDX, wct, tcon, (void **) &pSMB); |
1da177e4 LT |
1391 | if (rc) |
1392 | return rc; | |
1393 | ||
1394 | /* tcon and ses pointer are checked in smb_init */ | |
1395 | if (tcon->ses->server == NULL) | |
1396 | return -ECONNABORTED; | |
1397 | ||
ec637e3f | 1398 | pSMB->AndXCommand = 0xFF; /* none */ |
1da177e4 LT |
1399 | pSMB->Fid = netfid; |
1400 | pSMB->OffsetLow = cpu_to_le32(lseek & 0xFFFFFFFF); | |
790fe579 | 1401 | if (wct == 12) |
bfa0d75a | 1402 | pSMB->OffsetHigh = cpu_to_le32(lseek >> 32); |
790fe579 | 1403 | else if ((lseek >> 32) > 0) /* can not handle this big offset for old */ |
ec637e3f | 1404 | return -EIO; |
bfa0d75a | 1405 | |
1da177e4 LT |
1406 | pSMB->Remaining = 0; |
1407 | pSMB->MaxCount = cpu_to_le16(count & 0xFFFF); | |
1408 | pSMB->MaxCountHigh = cpu_to_le32(count >> 16); | |
790fe579 | 1409 | if (wct == 12) |
bfa0d75a SF |
1410 | pSMB->ByteCount = 0; /* no need to do le conversion since 0 */ |
1411 | else { | |
1412 | /* old style read */ | |
50c2f753 | 1413 | struct smb_com_readx_req *pSMBW = |
bfa0d75a | 1414 | (struct smb_com_readx_req *)pSMB; |
ec637e3f | 1415 | pSMBW->ByteCount = 0; |
bfa0d75a | 1416 | } |
ec637e3f SF |
1417 | |
1418 | iov[0].iov_base = (char *)pSMB; | |
1419 | iov[0].iov_len = pSMB->hdr.smb_buf_length + 4; | |
50c2f753 | 1420 | rc = SendReceive2(xid, tcon->ses, iov, |
ec637e3f | 1421 | 1 /* num iovecs */, |
50c2f753 | 1422 | &resp_buf_type, 0); |
a4544347 | 1423 | cifs_stats_inc(&tcon->num_reads); |
ec637e3f | 1424 | pSMBr = (READ_RSP *)iov[0].iov_base; |
1da177e4 LT |
1425 | if (rc) { |
1426 | cERROR(1, ("Send error in read = %d", rc)); | |
1427 | } else { | |
1428 | int data_length = le16_to_cpu(pSMBr->DataLengthHigh); | |
1429 | data_length = data_length << 16; | |
1430 | data_length += le16_to_cpu(pSMBr->DataLength); | |
1431 | *nbytes = data_length; | |
1432 | ||
1433 | /*check that DataLength would not go beyond end of SMB */ | |
ec637e3f | 1434 | if ((data_length > CIFSMaxBufSize) |
1da177e4 | 1435 | || (data_length > count)) { |
50c2f753 SF |
1436 | cFYI(1, ("bad length %d for count %d", |
1437 | data_length, count)); | |
1da177e4 LT |
1438 | rc = -EIO; |
1439 | *nbytes = 0; | |
1440 | } else { | |
ec637e3f | 1441 | pReadData = (char *) (&pSMBr->hdr.Protocol) + |
1da177e4 | 1442 | le16_to_cpu(pSMBr->DataOffset); |
790fe579 | 1443 | /* if (rc = copy_to_user(buf, pReadData, data_length)) { |
50c2f753 SF |
1444 | cERROR(1,("Faulting on read rc = %d",rc)); |
1445 | rc = -EFAULT; | |
ec637e3f | 1446 | }*/ /* can not use copy_to_user when using page cache*/ |
790fe579 | 1447 | if (*buf) |
50c2f753 | 1448 | memcpy(*buf, pReadData, data_length); |
1da177e4 LT |
1449 | } |
1450 | } | |
1da177e4 | 1451 | |
4b8f930f | 1452 | /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */ |
790fe579 SF |
1453 | if (*buf) { |
1454 | if (resp_buf_type == CIFS_SMALL_BUFFER) | |
ec637e3f | 1455 | cifs_small_buf_release(iov[0].iov_base); |
790fe579 | 1456 | else if (resp_buf_type == CIFS_LARGE_BUFFER) |
ec637e3f | 1457 | cifs_buf_release(iov[0].iov_base); |
790fe579 | 1458 | } else if (resp_buf_type != CIFS_NO_BUFFER) { |
50c2f753 SF |
1459 | /* return buffer to caller to free */ |
1460 | *buf = iov[0].iov_base; | |
790fe579 | 1461 | if (resp_buf_type == CIFS_SMALL_BUFFER) |
ec637e3f | 1462 | *pbuf_type = CIFS_SMALL_BUFFER; |
790fe579 | 1463 | else if (resp_buf_type == CIFS_LARGE_BUFFER) |
ec637e3f | 1464 | *pbuf_type = CIFS_LARGE_BUFFER; |
6cec2aed | 1465 | } /* else no valid buffer on return - leave as null */ |
ec637e3f SF |
1466 | |
1467 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
1da177e4 LT |
1468 | since file handle passed in no longer valid */ |
1469 | return rc; | |
1470 | } | |
1471 | ||
ec637e3f | 1472 | |
1da177e4 LT |
1473 | int |
1474 | CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon, | |
1475 | const int netfid, const unsigned int count, | |
1476 | const __u64 offset, unsigned int *nbytes, const char *buf, | |
50c2f753 | 1477 | const char __user *ubuf, const int long_op) |
1da177e4 LT |
1478 | { |
1479 | int rc = -EACCES; | |
1480 | WRITE_REQ *pSMB = NULL; | |
1481 | WRITE_RSP *pSMBr = NULL; | |
1c955187 | 1482 | int bytes_returned, wct; |
1da177e4 LT |
1483 | __u32 bytes_sent; |
1484 | __u16 byte_count; | |
1485 | ||
1486 | /* cFYI(1,("write at %lld %d bytes",offset,count));*/ | |
790fe579 | 1487 | if (tcon->ses == NULL) |
1c955187 SF |
1488 | return -ECONNABORTED; |
1489 | ||
790fe579 | 1490 | if (tcon->ses->capabilities & CAP_LARGE_FILES) |
1c955187 SF |
1491 | wct = 14; |
1492 | else | |
1493 | wct = 12; | |
1494 | ||
1495 | rc = smb_init(SMB_COM_WRITE_ANDX, wct, tcon, (void **) &pSMB, | |
1da177e4 LT |
1496 | (void **) &pSMBr); |
1497 | if (rc) | |
1498 | return rc; | |
1499 | /* tcon and ses pointer are checked in smb_init */ | |
1500 | if (tcon->ses->server == NULL) | |
1501 | return -ECONNABORTED; | |
1502 | ||
1503 | pSMB->AndXCommand = 0xFF; /* none */ | |
1504 | pSMB->Fid = netfid; | |
1505 | pSMB->OffsetLow = cpu_to_le32(offset & 0xFFFFFFFF); | |
790fe579 | 1506 | if (wct == 14) |
1c955187 | 1507 | pSMB->OffsetHigh = cpu_to_le32(offset >> 32); |
790fe579 | 1508 | else if ((offset >> 32) > 0) /* can not handle big offset for old srv */ |
1c955187 | 1509 | return -EIO; |
50c2f753 | 1510 | |
1da177e4 LT |
1511 | pSMB->Reserved = 0xFFFFFFFF; |
1512 | pSMB->WriteMode = 0; | |
1513 | pSMB->Remaining = 0; | |
1514 | ||
50c2f753 | 1515 | /* Can increase buffer size if buffer is big enough in some cases ie we |
1da177e4 LT |
1516 | can send more if LARGE_WRITE_X capability returned by the server and if |
1517 | our buffer is big enough or if we convert to iovecs on socket writes | |
1518 | and eliminate the copy to the CIFS buffer */ | |
790fe579 | 1519 | if (tcon->ses->capabilities & CAP_LARGE_WRITE_X) { |
1da177e4 LT |
1520 | bytes_sent = min_t(const unsigned int, CIFSMaxBufSize, count); |
1521 | } else { | |
1522 | bytes_sent = (tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) | |
1523 | & ~0xFF; | |
1524 | } | |
1525 | ||
1526 | if (bytes_sent > count) | |
1527 | bytes_sent = count; | |
1528 | pSMB->DataOffset = | |
50c2f753 | 1529 | cpu_to_le16(offsetof(struct smb_com_write_req, Data) - 4); |
790fe579 | 1530 | if (buf) |
50c2f753 | 1531 | memcpy(pSMB->Data, buf, bytes_sent); |
790fe579 SF |
1532 | else if (ubuf) { |
1533 | if (copy_from_user(pSMB->Data, ubuf, bytes_sent)) { | |
1da177e4 LT |
1534 | cifs_buf_release(pSMB); |
1535 | return -EFAULT; | |
1536 | } | |
e30dcf3a | 1537 | } else if (count != 0) { |
1da177e4 LT |
1538 | /* No buffer */ |
1539 | cifs_buf_release(pSMB); | |
1540 | return -EINVAL; | |
e30dcf3a | 1541 | } /* else setting file size with write of zero bytes */ |
790fe579 | 1542 | if (wct == 14) |
e30dcf3a SF |
1543 | byte_count = bytes_sent + 1; /* pad */ |
1544 | else /* wct == 12 */ { | |
1545 | byte_count = bytes_sent + 5; /* bigger pad, smaller smb hdr */ | |
1da177e4 | 1546 | } |
1da177e4 LT |
1547 | pSMB->DataLengthLow = cpu_to_le16(bytes_sent & 0xFFFF); |
1548 | pSMB->DataLengthHigh = cpu_to_le16(bytes_sent >> 16); | |
e30dcf3a | 1549 | pSMB->hdr.smb_buf_length += byte_count; |
1c955187 | 1550 | |
790fe579 | 1551 | if (wct == 14) |
1c955187 | 1552 | pSMB->ByteCount = cpu_to_le16(byte_count); |
50c2f753 SF |
1553 | else { /* old style write has byte count 4 bytes earlier |
1554 | so 4 bytes pad */ | |
1555 | struct smb_com_writex_req *pSMBW = | |
1c955187 SF |
1556 | (struct smb_com_writex_req *)pSMB; |
1557 | pSMBW->ByteCount = cpu_to_le16(byte_count); | |
1558 | } | |
1da177e4 LT |
1559 | |
1560 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1561 | (struct smb_hdr *) pSMBr, &bytes_returned, long_op); | |
a4544347 | 1562 | cifs_stats_inc(&tcon->num_writes); |
1da177e4 LT |
1563 | if (rc) { |
1564 | cFYI(1, ("Send error in write = %d", rc)); | |
1565 | *nbytes = 0; | |
1566 | } else { | |
1567 | *nbytes = le16_to_cpu(pSMBr->CountHigh); | |
1568 | *nbytes = (*nbytes) << 16; | |
1569 | *nbytes += le16_to_cpu(pSMBr->Count); | |
1570 | } | |
1571 | ||
1572 | cifs_buf_release(pSMB); | |
1573 | ||
50c2f753 | 1574 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
1da177e4 LT |
1575 | since file handle passed in no longer valid */ |
1576 | ||
1577 | return rc; | |
1578 | } | |
1579 | ||
d6e04ae6 SF |
1580 | int |
1581 | CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon, | |
1da177e4 | 1582 | const int netfid, const unsigned int count, |
3e84469d SF |
1583 | const __u64 offset, unsigned int *nbytes, struct kvec *iov, |
1584 | int n_vec, const int long_op) | |
1da177e4 LT |
1585 | { |
1586 | int rc = -EACCES; | |
1587 | WRITE_REQ *pSMB = NULL; | |
ec637e3f | 1588 | int wct; |
d6e04ae6 | 1589 | int smb_hdr_len; |
ec637e3f | 1590 | int resp_buf_type = 0; |
1da177e4 | 1591 | |
790fe579 | 1592 | cFYI(1, ("write2 at %lld %d bytes", (long long)offset, count)); |
ff7feac9 | 1593 | |
790fe579 | 1594 | if (tcon->ses->capabilities & CAP_LARGE_FILES) |
8cc64c6e SF |
1595 | wct = 14; |
1596 | else | |
1597 | wct = 12; | |
1598 | rc = small_smb_init(SMB_COM_WRITE_ANDX, wct, tcon, (void **) &pSMB); | |
1da177e4 LT |
1599 | if (rc) |
1600 | return rc; | |
1da177e4 LT |
1601 | /* tcon and ses pointer are checked in smb_init */ |
1602 | if (tcon->ses->server == NULL) | |
1603 | return -ECONNABORTED; | |
1604 | ||
d6e04ae6 | 1605 | pSMB->AndXCommand = 0xFF; /* none */ |
1da177e4 LT |
1606 | pSMB->Fid = netfid; |
1607 | pSMB->OffsetLow = cpu_to_le32(offset & 0xFFFFFFFF); | |
790fe579 | 1608 | if (wct == 14) |
8cc64c6e | 1609 | pSMB->OffsetHigh = cpu_to_le32(offset >> 32); |
790fe579 | 1610 | else if ((offset >> 32) > 0) /* can not handle big offset for old srv */ |
8cc64c6e | 1611 | return -EIO; |
1da177e4 LT |
1612 | pSMB->Reserved = 0xFFFFFFFF; |
1613 | pSMB->WriteMode = 0; | |
1614 | pSMB->Remaining = 0; | |
d6e04ae6 | 1615 | |
1da177e4 | 1616 | pSMB->DataOffset = |
50c2f753 | 1617 | cpu_to_le16(offsetof(struct smb_com_write_req, Data) - 4); |
1da177e4 | 1618 | |
3e84469d SF |
1619 | pSMB->DataLengthLow = cpu_to_le16(count & 0xFFFF); |
1620 | pSMB->DataLengthHigh = cpu_to_le16(count >> 16); | |
d6e04ae6 | 1621 | smb_hdr_len = pSMB->hdr.smb_buf_length + 1; /* hdr + 1 byte pad */ |
790fe579 | 1622 | if (wct == 14) |
8cc64c6e SF |
1623 | pSMB->hdr.smb_buf_length += count+1; |
1624 | else /* wct == 12 */ | |
790fe579 SF |
1625 | pSMB->hdr.smb_buf_length += count+5; /* smb data starts later */ |
1626 | if (wct == 14) | |
8cc64c6e SF |
1627 | pSMB->ByteCount = cpu_to_le16(count + 1); |
1628 | else /* wct == 12 */ /* bigger pad, smaller smb hdr, keep offset ok */ { | |
50c2f753 | 1629 | struct smb_com_writex_req *pSMBW = |
8cc64c6e SF |
1630 | (struct smb_com_writex_req *)pSMB; |
1631 | pSMBW->ByteCount = cpu_to_le16(count + 5); | |
1632 | } | |
3e84469d | 1633 | iov[0].iov_base = pSMB; |
790fe579 | 1634 | if (wct == 14) |
ec637e3f SF |
1635 | iov[0].iov_len = smb_hdr_len + 4; |
1636 | else /* wct == 12 pad bigger by four bytes */ | |
1637 | iov[0].iov_len = smb_hdr_len + 8; | |
50c2f753 | 1638 | |
1da177e4 | 1639 | |
ec637e3f | 1640 | rc = SendReceive2(xid, tcon->ses, iov, n_vec + 1, &resp_buf_type, |
3e84469d | 1641 | long_op); |
a4544347 | 1642 | cifs_stats_inc(&tcon->num_writes); |
1da177e4 | 1643 | if (rc) { |
8cc64c6e | 1644 | cFYI(1, ("Send error Write2 = %d", rc)); |
1da177e4 | 1645 | *nbytes = 0; |
790fe579 | 1646 | } else if (resp_buf_type == 0) { |
ec637e3f SF |
1647 | /* presumably this can not happen, but best to be safe */ |
1648 | rc = -EIO; | |
1649 | *nbytes = 0; | |
d6e04ae6 | 1650 | } else { |
ec637e3f | 1651 | WRITE_RSP * pSMBr = (WRITE_RSP *)iov[0].iov_base; |
d6e04ae6 SF |
1652 | *nbytes = le16_to_cpu(pSMBr->CountHigh); |
1653 | *nbytes = (*nbytes) << 16; | |
1654 | *nbytes += le16_to_cpu(pSMBr->Count); | |
50c2f753 | 1655 | } |
1da177e4 | 1656 | |
4b8f930f | 1657 | /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */ |
790fe579 | 1658 | if (resp_buf_type == CIFS_SMALL_BUFFER) |
ec637e3f | 1659 | cifs_small_buf_release(iov[0].iov_base); |
790fe579 | 1660 | else if (resp_buf_type == CIFS_LARGE_BUFFER) |
ec637e3f | 1661 | cifs_buf_release(iov[0].iov_base); |
1da177e4 | 1662 | |
50c2f753 | 1663 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
1da177e4 LT |
1664 | since file handle passed in no longer valid */ |
1665 | ||
1666 | return rc; | |
1667 | } | |
d6e04ae6 SF |
1668 | |
1669 | ||
1da177e4 LT |
1670 | int |
1671 | CIFSSMBLock(const int xid, struct cifsTconInfo *tcon, | |
1672 | const __u16 smb_file_id, const __u64 len, | |
1673 | const __u64 offset, const __u32 numUnlock, | |
1674 | const __u32 numLock, const __u8 lockType, const int waitFlag) | |
1675 | { | |
1676 | int rc = 0; | |
1677 | LOCK_REQ *pSMB = NULL; | |
1678 | LOCK_RSP *pSMBr = NULL; | |
1679 | int bytes_returned; | |
1680 | int timeout = 0; | |
1681 | __u16 count; | |
1682 | ||
50c2f753 | 1683 | cFYI(1, ("In CIFSSMBLock - timeout %d numLock %d", waitFlag, numLock)); |
46810cbf SF |
1684 | rc = small_smb_init(SMB_COM_LOCKING_ANDX, 8, tcon, (void **) &pSMB); |
1685 | ||
1da177e4 LT |
1686 | if (rc) |
1687 | return rc; | |
1688 | ||
46810cbf SF |
1689 | pSMBr = (LOCK_RSP *)pSMB; /* BB removeme BB */ |
1690 | ||
790fe579 | 1691 | if (lockType == LOCKING_ANDX_OPLOCK_RELEASE) { |
1da177e4 LT |
1692 | timeout = -1; /* no response expected */ |
1693 | pSMB->Timeout = 0; | |
1694 | } else if (waitFlag == TRUE) { | |
1695 | timeout = 3; /* blocking operation, no timeout */ | |
1696 | pSMB->Timeout = cpu_to_le32(-1);/* blocking - do not time out */ | |
1697 | } else { | |
1698 | pSMB->Timeout = 0; | |
1699 | } | |
1700 | ||
1701 | pSMB->NumberOfLocks = cpu_to_le16(numLock); | |
1702 | pSMB->NumberOfUnlocks = cpu_to_le16(numUnlock); | |
1703 | pSMB->LockType = lockType; | |
1704 | pSMB->AndXCommand = 0xFF; /* none */ | |
1705 | pSMB->Fid = smb_file_id; /* netfid stays le */ | |
1706 | ||
790fe579 | 1707 | if ((numLock != 0) || (numUnlock != 0)) { |
1da177e4 LT |
1708 | pSMB->Locks[0].Pid = cpu_to_le16(current->tgid); |
1709 | /* BB where to store pid high? */ | |
1710 | pSMB->Locks[0].LengthLow = cpu_to_le32((u32)len); | |
1711 | pSMB->Locks[0].LengthHigh = cpu_to_le32((u32)(len>>32)); | |
1712 | pSMB->Locks[0].OffsetLow = cpu_to_le32((u32)offset); | |
1713 | pSMB->Locks[0].OffsetHigh = cpu_to_le32((u32)(offset>>32)); | |
1714 | count = sizeof(LOCKING_ANDX_RANGE); | |
1715 | } else { | |
1716 | /* oplock break */ | |
1717 | count = 0; | |
1718 | } | |
1719 | pSMB->hdr.smb_buf_length += count; | |
1720 | pSMB->ByteCount = cpu_to_le16(count); | |
1721 | ||
7ee1af76 JA |
1722 | if (waitFlag) { |
1723 | rc = SendReceiveBlockingLock(xid, tcon, (struct smb_hdr *) pSMB, | |
1724 | (struct smb_hdr *) pSMBr, &bytes_returned); | |
1725 | } else { | |
1726 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1da177e4 | 1727 | (struct smb_hdr *) pSMBr, &bytes_returned, timeout); |
7ee1af76 | 1728 | } |
a4544347 | 1729 | cifs_stats_inc(&tcon->num_locks); |
1da177e4 LT |
1730 | if (rc) { |
1731 | cFYI(1, ("Send error in Lock = %d", rc)); | |
1732 | } | |
46810cbf | 1733 | cifs_small_buf_release(pSMB); |
1da177e4 | 1734 | |
50c2f753 | 1735 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
1da177e4 LT |
1736 | since file handle passed in no longer valid */ |
1737 | return rc; | |
1738 | } | |
1739 | ||
08547b03 SF |
1740 | int |
1741 | CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon, | |
1742 | const __u16 smb_file_id, const int get_flag, const __u64 len, | |
50c2f753 | 1743 | struct file_lock *pLockData, const __u16 lock_type, |
fc94cdb9 | 1744 | const int waitFlag) |
08547b03 SF |
1745 | { |
1746 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
1747 | struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; | |
08547b03 SF |
1748 | struct cifs_posix_lock *parm_data; |
1749 | int rc = 0; | |
3a5ff61c | 1750 | int timeout = 0; |
08547b03 SF |
1751 | int bytes_returned = 0; |
1752 | __u16 params, param_offset, offset, byte_count, count; | |
1753 | ||
1754 | cFYI(1, ("Posix Lock")); | |
fc94cdb9 | 1755 | |
790fe579 | 1756 | if (pLockData == NULL) |
fc94cdb9 SF |
1757 | return EINVAL; |
1758 | ||
08547b03 SF |
1759 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
1760 | ||
1761 | if (rc) | |
1762 | return rc; | |
1763 | ||
1764 | pSMBr = (struct smb_com_transaction2_sfi_rsp *)pSMB; | |
1765 | ||
50c2f753 | 1766 | params = 6; |
08547b03 SF |
1767 | pSMB->MaxSetupCount = 0; |
1768 | pSMB->Reserved = 0; | |
1769 | pSMB->Flags = 0; | |
08547b03 SF |
1770 | pSMB->Reserved2 = 0; |
1771 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
1772 | offset = param_offset + params; | |
1773 | ||
08547b03 SF |
1774 | count = sizeof(struct cifs_posix_lock); |
1775 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
1776 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB PDU from sess */ | |
1777 | pSMB->SetupCount = 1; | |
1778 | pSMB->Reserved3 = 0; | |
790fe579 | 1779 | if (get_flag) |
08547b03 SF |
1780 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FILE_INFORMATION); |
1781 | else | |
1782 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
1783 | byte_count = 3 /* pad */ + params + count; | |
1784 | pSMB->DataCount = cpu_to_le16(count); | |
1785 | pSMB->ParameterCount = cpu_to_le16(params); | |
1786 | pSMB->TotalDataCount = pSMB->DataCount; | |
1787 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
1788 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
50c2f753 | 1789 | parm_data = (struct cifs_posix_lock *) |
08547b03 SF |
1790 | (((char *) &pSMB->hdr.Protocol) + offset); |
1791 | ||
1792 | parm_data->lock_type = cpu_to_le16(lock_type); | |
790fe579 | 1793 | if (waitFlag) { |
3a5ff61c | 1794 | timeout = 3; /* blocking operation, no timeout */ |
cec6815a | 1795 | parm_data->lock_flags = cpu_to_le16(1); |
3a5ff61c SF |
1796 | pSMB->Timeout = cpu_to_le32(-1); |
1797 | } else | |
1798 | pSMB->Timeout = 0; | |
1799 | ||
08547b03 | 1800 | parm_data->pid = cpu_to_le32(current->tgid); |
fc94cdb9 | 1801 | parm_data->start = cpu_to_le64(pLockData->fl_start); |
cec6815a | 1802 | parm_data->length = cpu_to_le64(len); /* normalize negative numbers */ |
08547b03 SF |
1803 | |
1804 | pSMB->DataOffset = cpu_to_le16(offset); | |
f26282c9 | 1805 | pSMB->Fid = smb_file_id; |
08547b03 SF |
1806 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_POSIX_LOCK); |
1807 | pSMB->Reserved4 = 0; | |
1808 | pSMB->hdr.smb_buf_length += byte_count; | |
1809 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
7ee1af76 JA |
1810 | if (waitFlag) { |
1811 | rc = SendReceiveBlockingLock(xid, tcon, (struct smb_hdr *) pSMB, | |
1812 | (struct smb_hdr *) pSMBr, &bytes_returned); | |
1813 | } else { | |
1814 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3a5ff61c | 1815 | (struct smb_hdr *) pSMBr, &bytes_returned, timeout); |
7ee1af76 JA |
1816 | } |
1817 | ||
08547b03 SF |
1818 | if (rc) { |
1819 | cFYI(1, ("Send error in Posix Lock = %d", rc)); | |
fc94cdb9 SF |
1820 | } else if (get_flag) { |
1821 | /* lock structure can be returned on get */ | |
1822 | __u16 data_offset; | |
1823 | __u16 data_count; | |
1824 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
1825 | ||
1826 | if (rc || (pSMBr->ByteCount < sizeof(struct cifs_posix_lock))) { | |
1827 | rc = -EIO; /* bad smb */ | |
1828 | goto plk_err_exit; | |
1829 | } | |
790fe579 | 1830 | if (pLockData == NULL) { |
fc94cdb9 SF |
1831 | rc = -EINVAL; |
1832 | goto plk_err_exit; | |
1833 | } | |
1834 | data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
1835 | data_count = le16_to_cpu(pSMBr->t2.DataCount); | |
790fe579 | 1836 | if (data_count < sizeof(struct cifs_posix_lock)) { |
fc94cdb9 SF |
1837 | rc = -EIO; |
1838 | goto plk_err_exit; | |
1839 | } | |
1840 | parm_data = (struct cifs_posix_lock *) | |
1841 | ((char *)&pSMBr->hdr.Protocol + data_offset); | |
790fe579 | 1842 | if (parm_data->lock_type == cpu_to_le16(CIFS_UNLCK)) |
fc94cdb9 | 1843 | pLockData->fl_type = F_UNLCK; |
08547b03 | 1844 | } |
50c2f753 | 1845 | |
fc94cdb9 | 1846 | plk_err_exit: |
08547b03 SF |
1847 | if (pSMB) |
1848 | cifs_small_buf_release(pSMB); | |
1849 | ||
1850 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
1851 | since file handle passed in no longer valid */ | |
1852 | ||
1853 | return rc; | |
1854 | } | |
1855 | ||
1856 | ||
1da177e4 LT |
1857 | int |
1858 | CIFSSMBClose(const int xid, struct cifsTconInfo *tcon, int smb_file_id) | |
1859 | { | |
1860 | int rc = 0; | |
1861 | CLOSE_REQ *pSMB = NULL; | |
1862 | CLOSE_RSP *pSMBr = NULL; | |
1863 | int bytes_returned; | |
1864 | cFYI(1, ("In CIFSSMBClose")); | |
1865 | ||
1866 | /* do not retry on dead session on close */ | |
1867 | rc = small_smb_init(SMB_COM_CLOSE, 3, tcon, (void **) &pSMB); | |
790fe579 | 1868 | if (rc == -EAGAIN) |
1da177e4 LT |
1869 | return 0; |
1870 | if (rc) | |
1871 | return rc; | |
1872 | ||
1873 | pSMBr = (CLOSE_RSP *)pSMB; /* BB removeme BB */ | |
1874 | ||
1875 | pSMB->FileID = (__u16) smb_file_id; | |
b815f1e5 | 1876 | pSMB->LastWriteTime = 0xFFFFFFFF; |
1da177e4 LT |
1877 | pSMB->ByteCount = 0; |
1878 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1879 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 1880 | cifs_stats_inc(&tcon->num_closes); |
1da177e4 | 1881 | if (rc) { |
790fe579 | 1882 | if (rc != -EINTR) { |
1da177e4 LT |
1883 | /* EINTR is expected when user ctl-c to kill app */ |
1884 | cERROR(1, ("Send error in Close = %d", rc)); | |
1885 | } | |
1886 | } | |
1887 | ||
1888 | cifs_small_buf_release(pSMB); | |
1889 | ||
1890 | /* Since session is dead, file will be closed on server already */ | |
790fe579 | 1891 | if (rc == -EAGAIN) |
1da177e4 LT |
1892 | rc = 0; |
1893 | ||
1894 | return rc; | |
1895 | } | |
1896 | ||
1897 | int | |
1898 | CIFSSMBRename(const int xid, struct cifsTconInfo *tcon, | |
1899 | const char *fromName, const char *toName, | |
737b758c | 1900 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
1901 | { |
1902 | int rc = 0; | |
1903 | RENAME_REQ *pSMB = NULL; | |
1904 | RENAME_RSP *pSMBr = NULL; | |
1905 | int bytes_returned; | |
1906 | int name_len, name_len2; | |
1907 | __u16 count; | |
1908 | ||
1909 | cFYI(1, ("In CIFSSMBRename")); | |
1910 | renameRetry: | |
1911 | rc = smb_init(SMB_COM_RENAME, 1, tcon, (void **) &pSMB, | |
1912 | (void **) &pSMBr); | |
1913 | if (rc) | |
1914 | return rc; | |
1915 | ||
1916 | pSMB->BufferFormat = 0x04; | |
1917 | pSMB->SearchAttributes = | |
1918 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | | |
1919 | ATTR_DIRECTORY); | |
1920 | ||
1921 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1922 | name_len = | |
50c2f753 | 1923 | cifsConvertToUCS((__le16 *) pSMB->OldFileName, fromName, |
737b758c | 1924 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1925 | name_len++; /* trailing null */ |
1926 | name_len *= 2; | |
1927 | pSMB->OldFileName[name_len] = 0x04; /* pad */ | |
1928 | /* protocol requires ASCII signature byte on Unicode string */ | |
1929 | pSMB->OldFileName[name_len + 1] = 0x00; | |
1930 | name_len2 = | |
b1a45695 | 1931 | cifsConvertToUCS((__le16 *) &pSMB->OldFileName[name_len + 2], |
737b758c | 1932 | toName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1933 | name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; |
1934 | name_len2 *= 2; /* convert to bytes */ | |
50c2f753 | 1935 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
1936 | name_len = strnlen(fromName, PATH_MAX); |
1937 | name_len++; /* trailing null */ | |
1938 | strncpy(pSMB->OldFileName, fromName, name_len); | |
1939 | name_len2 = strnlen(toName, PATH_MAX); | |
1940 | name_len2++; /* trailing null */ | |
1941 | pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */ | |
1942 | strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2); | |
1943 | name_len2++; /* trailing null */ | |
1944 | name_len2++; /* signature byte */ | |
1945 | } | |
1946 | ||
1947 | count = 1 /* 1st signature byte */ + name_len + name_len2; | |
1948 | pSMB->hdr.smb_buf_length += count; | |
1949 | pSMB->ByteCount = cpu_to_le16(count); | |
1950 | ||
1951 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1952 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 1953 | cifs_stats_inc(&tcon->num_renames); |
1da177e4 LT |
1954 | if (rc) { |
1955 | cFYI(1, ("Send error in rename = %d", rc)); | |
50c2f753 | 1956 | } |
1da177e4 | 1957 | |
1da177e4 LT |
1958 | cifs_buf_release(pSMB); |
1959 | ||
1960 | if (rc == -EAGAIN) | |
1961 | goto renameRetry; | |
1962 | ||
1963 | return rc; | |
1964 | } | |
1965 | ||
50c2f753 SF |
1966 | int CIFSSMBRenameOpenFile(const int xid, struct cifsTconInfo *pTcon, |
1967 | int netfid, char *target_name, | |
1968 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
1969 | { |
1970 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
1971 | struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; | |
50c2f753 | 1972 | struct set_file_rename *rename_info; |
1da177e4 LT |
1973 | char *data_offset; |
1974 | char dummy_string[30]; | |
1975 | int rc = 0; | |
1976 | int bytes_returned = 0; | |
1977 | int len_of_str; | |
1978 | __u16 params, param_offset, offset, count, byte_count; | |
1979 | ||
1980 | cFYI(1, ("Rename to File by handle")); | |
1981 | rc = smb_init(SMB_COM_TRANSACTION2, 15, pTcon, (void **) &pSMB, | |
1982 | (void **) &pSMBr); | |
1983 | if (rc) | |
1984 | return rc; | |
1985 | ||
1986 | params = 6; | |
1987 | pSMB->MaxSetupCount = 0; | |
1988 | pSMB->Reserved = 0; | |
1989 | pSMB->Flags = 0; | |
1990 | pSMB->Timeout = 0; | |
1991 | pSMB->Reserved2 = 0; | |
1992 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
1993 | offset = param_offset + params; | |
1994 | ||
1995 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
1996 | rename_info = (struct set_file_rename *) data_offset; | |
1997 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
1998 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB PDU from sess */ | |
1999 | pSMB->SetupCount = 1; | |
2000 | pSMB->Reserved3 = 0; | |
2001 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
2002 | byte_count = 3 /* pad */ + params; | |
2003 | pSMB->ParameterCount = cpu_to_le16(params); | |
2004 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
2005 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
2006 | pSMB->DataOffset = cpu_to_le16(offset); | |
2007 | /* construct random name ".cifs_tmp<inodenum><mid>" */ | |
2008 | rename_info->overwrite = cpu_to_le32(1); | |
2009 | rename_info->root_fid = 0; | |
2010 | /* unicode only call */ | |
790fe579 | 2011 | if (target_name == NULL) { |
50c2f753 SF |
2012 | sprintf(dummy_string, "cifs%x", pSMB->hdr.Mid); |
2013 | len_of_str = cifsConvertToUCS((__le16 *)rename_info->target_name, | |
737b758c | 2014 | dummy_string, 24, nls_codepage, remap); |
1da177e4 | 2015 | } else { |
b1a45695 | 2016 | len_of_str = cifsConvertToUCS((__le16 *)rename_info->target_name, |
50c2f753 SF |
2017 | target_name, PATH_MAX, nls_codepage, |
2018 | remap); | |
1da177e4 LT |
2019 | } |
2020 | rename_info->target_name_len = cpu_to_le32(2 * len_of_str); | |
2021 | count = 12 /* sizeof(struct set_file_rename) */ + (2 * len_of_str) + 2; | |
2022 | byte_count += count; | |
2023 | pSMB->DataCount = cpu_to_le16(count); | |
2024 | pSMB->TotalDataCount = pSMB->DataCount; | |
2025 | pSMB->Fid = netfid; | |
2026 | pSMB->InformationLevel = | |
2027 | cpu_to_le16(SMB_SET_FILE_RENAME_INFORMATION); | |
2028 | pSMB->Reserved4 = 0; | |
2029 | pSMB->hdr.smb_buf_length += byte_count; | |
2030 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2031 | rc = SendReceive(xid, pTcon->ses, (struct smb_hdr *) pSMB, | |
50c2f753 | 2032 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
a4544347 | 2033 | cifs_stats_inc(&pTcon->num_t2renames); |
1da177e4 | 2034 | if (rc) { |
790fe579 | 2035 | cFYI(1, ("Send error in Rename (by file handle) = %d", rc)); |
1da177e4 | 2036 | } |
a5a2b489 | 2037 | |
1da177e4 LT |
2038 | cifs_buf_release(pSMB); |
2039 | ||
2040 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
2041 | since file handle passed in no longer valid */ | |
2042 | ||
2043 | return rc; | |
2044 | } | |
2045 | ||
2046 | int | |
50c2f753 SF |
2047 | CIFSSMBCopy(const int xid, struct cifsTconInfo *tcon, const char *fromName, |
2048 | const __u16 target_tid, const char *toName, const int flags, | |
2049 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
2050 | { |
2051 | int rc = 0; | |
2052 | COPY_REQ *pSMB = NULL; | |
2053 | COPY_RSP *pSMBr = NULL; | |
2054 | int bytes_returned; | |
2055 | int name_len, name_len2; | |
2056 | __u16 count; | |
2057 | ||
2058 | cFYI(1, ("In CIFSSMBCopy")); | |
2059 | copyRetry: | |
2060 | rc = smb_init(SMB_COM_COPY, 1, tcon, (void **) &pSMB, | |
2061 | (void **) &pSMBr); | |
2062 | if (rc) | |
2063 | return rc; | |
2064 | ||
2065 | pSMB->BufferFormat = 0x04; | |
2066 | pSMB->Tid2 = target_tid; | |
2067 | ||
2068 | pSMB->Flags = cpu_to_le16(flags & COPY_TREE); | |
2069 | ||
2070 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
50c2f753 | 2071 | name_len = cifsConvertToUCS((__le16 *) pSMB->OldFileName, |
737b758c SF |
2072 | fromName, PATH_MAX, nls_codepage, |
2073 | remap); | |
1da177e4 LT |
2074 | name_len++; /* trailing null */ |
2075 | name_len *= 2; | |
2076 | pSMB->OldFileName[name_len] = 0x04; /* pad */ | |
2077 | /* protocol requires ASCII signature byte on Unicode string */ | |
2078 | pSMB->OldFileName[name_len + 1] = 0x00; | |
50c2f753 SF |
2079 | name_len2 = |
2080 | cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2], | |
737b758c | 2081 | toName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2082 | name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; |
2083 | name_len2 *= 2; /* convert to bytes */ | |
50c2f753 | 2084 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2085 | name_len = strnlen(fromName, PATH_MAX); |
2086 | name_len++; /* trailing null */ | |
2087 | strncpy(pSMB->OldFileName, fromName, name_len); | |
2088 | name_len2 = strnlen(toName, PATH_MAX); | |
2089 | name_len2++; /* trailing null */ | |
2090 | pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */ | |
2091 | strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2); | |
2092 | name_len2++; /* trailing null */ | |
2093 | name_len2++; /* signature byte */ | |
2094 | } | |
2095 | ||
2096 | count = 1 /* 1st signature byte */ + name_len + name_len2; | |
2097 | pSMB->hdr.smb_buf_length += count; | |
2098 | pSMB->ByteCount = cpu_to_le16(count); | |
2099 | ||
2100 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2101 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2102 | if (rc) { | |
2103 | cFYI(1, ("Send error in copy = %d with %d files copied", | |
2104 | rc, le16_to_cpu(pSMBr->CopyCount))); | |
2105 | } | |
2106 | if (pSMB) | |
2107 | cifs_buf_release(pSMB); | |
2108 | ||
2109 | if (rc == -EAGAIN) | |
2110 | goto copyRetry; | |
2111 | ||
2112 | return rc; | |
2113 | } | |
2114 | ||
2115 | int | |
2116 | CIFSUnixCreateSymLink(const int xid, struct cifsTconInfo *tcon, | |
2117 | const char *fromName, const char *toName, | |
2118 | const struct nls_table *nls_codepage) | |
2119 | { | |
2120 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
2121 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
2122 | char *data_offset; | |
2123 | int name_len; | |
2124 | int name_len_target; | |
2125 | int rc = 0; | |
2126 | int bytes_returned = 0; | |
2127 | __u16 params, param_offset, offset, byte_count; | |
2128 | ||
2129 | cFYI(1, ("In Symlink Unix style")); | |
2130 | createSymLinkRetry: | |
2131 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2132 | (void **) &pSMBr); | |
2133 | if (rc) | |
2134 | return rc; | |
2135 | ||
2136 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2137 | name_len = | |
e89dc920 | 2138 | cifs_strtoUCS((__le16 *) pSMB->FileName, fromName, PATH_MAX |
1da177e4 LT |
2139 | /* find define for this maxpathcomponent */ |
2140 | , nls_codepage); | |
2141 | name_len++; /* trailing null */ | |
2142 | name_len *= 2; | |
2143 | ||
50c2f753 | 2144 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2145 | name_len = strnlen(fromName, PATH_MAX); |
2146 | name_len++; /* trailing null */ | |
2147 | strncpy(pSMB->FileName, fromName, name_len); | |
2148 | } | |
2149 | params = 6 + name_len; | |
2150 | pSMB->MaxSetupCount = 0; | |
2151 | pSMB->Reserved = 0; | |
2152 | pSMB->Flags = 0; | |
2153 | pSMB->Timeout = 0; | |
2154 | pSMB->Reserved2 = 0; | |
2155 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 2156 | InformationLevel) - 4; |
1da177e4 LT |
2157 | offset = param_offset + params; |
2158 | ||
2159 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
2160 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2161 | name_len_target = | |
e89dc920 | 2162 | cifs_strtoUCS((__le16 *) data_offset, toName, PATH_MAX |
1da177e4 LT |
2163 | /* find define for this maxpathcomponent */ |
2164 | , nls_codepage); | |
2165 | name_len_target++; /* trailing null */ | |
2166 | name_len_target *= 2; | |
50c2f753 | 2167 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2168 | name_len_target = strnlen(toName, PATH_MAX); |
2169 | name_len_target++; /* trailing null */ | |
2170 | strncpy(data_offset, toName, name_len_target); | |
2171 | } | |
2172 | ||
2173 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
2174 | /* BB find exact max on data count below from sess */ | |
2175 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
2176 | pSMB->SetupCount = 1; | |
2177 | pSMB->Reserved3 = 0; | |
2178 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
2179 | byte_count = 3 /* pad */ + params + name_len_target; | |
2180 | pSMB->DataCount = cpu_to_le16(name_len_target); | |
2181 | pSMB->ParameterCount = cpu_to_le16(params); | |
2182 | pSMB->TotalDataCount = pSMB->DataCount; | |
2183 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
2184 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
2185 | pSMB->DataOffset = cpu_to_le16(offset); | |
2186 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_LINK); | |
2187 | pSMB->Reserved4 = 0; | |
2188 | pSMB->hdr.smb_buf_length += byte_count; | |
2189 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2190 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2191 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 2192 | cifs_stats_inc(&tcon->num_symlinks); |
1da177e4 | 2193 | if (rc) { |
2d785a50 | 2194 | cFYI(1, ("Send error in SetPathInfo create symlink = %d", rc)); |
1da177e4 LT |
2195 | } |
2196 | ||
2197 | if (pSMB) | |
2198 | cifs_buf_release(pSMB); | |
2199 | ||
2200 | if (rc == -EAGAIN) | |
2201 | goto createSymLinkRetry; | |
2202 | ||
2203 | return rc; | |
2204 | } | |
2205 | ||
2206 | int | |
2207 | CIFSUnixCreateHardLink(const int xid, struct cifsTconInfo *tcon, | |
2208 | const char *fromName, const char *toName, | |
737b758c | 2209 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
2210 | { |
2211 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
2212 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
2213 | char *data_offset; | |
2214 | int name_len; | |
2215 | int name_len_target; | |
2216 | int rc = 0; | |
2217 | int bytes_returned = 0; | |
2218 | __u16 params, param_offset, offset, byte_count; | |
2219 | ||
2220 | cFYI(1, ("In Create Hard link Unix style")); | |
2221 | createHardLinkRetry: | |
2222 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2223 | (void **) &pSMBr); | |
2224 | if (rc) | |
2225 | return rc; | |
2226 | ||
2227 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
b1a45695 | 2228 | name_len = cifsConvertToUCS((__le16 *) pSMB->FileName, toName, |
737b758c | 2229 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2230 | name_len++; /* trailing null */ |
2231 | name_len *= 2; | |
2232 | ||
50c2f753 | 2233 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2234 | name_len = strnlen(toName, PATH_MAX); |
2235 | name_len++; /* trailing null */ | |
2236 | strncpy(pSMB->FileName, toName, name_len); | |
2237 | } | |
2238 | params = 6 + name_len; | |
2239 | pSMB->MaxSetupCount = 0; | |
2240 | pSMB->Reserved = 0; | |
2241 | pSMB->Flags = 0; | |
2242 | pSMB->Timeout = 0; | |
2243 | pSMB->Reserved2 = 0; | |
2244 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 2245 | InformationLevel) - 4; |
1da177e4 LT |
2246 | offset = param_offset + params; |
2247 | ||
2248 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
2249 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2250 | name_len_target = | |
b1a45695 | 2251 | cifsConvertToUCS((__le16 *) data_offset, fromName, PATH_MAX, |
737b758c | 2252 | nls_codepage, remap); |
1da177e4 LT |
2253 | name_len_target++; /* trailing null */ |
2254 | name_len_target *= 2; | |
50c2f753 | 2255 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2256 | name_len_target = strnlen(fromName, PATH_MAX); |
2257 | name_len_target++; /* trailing null */ | |
2258 | strncpy(data_offset, fromName, name_len_target); | |
2259 | } | |
2260 | ||
2261 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
2262 | /* BB find exact max on data count below from sess*/ | |
2263 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
2264 | pSMB->SetupCount = 1; | |
2265 | pSMB->Reserved3 = 0; | |
2266 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
2267 | byte_count = 3 /* pad */ + params + name_len_target; | |
2268 | pSMB->ParameterCount = cpu_to_le16(params); | |
2269 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
2270 | pSMB->DataCount = cpu_to_le16(name_len_target); | |
2271 | pSMB->TotalDataCount = pSMB->DataCount; | |
2272 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
2273 | pSMB->DataOffset = cpu_to_le16(offset); | |
2274 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_HLINK); | |
2275 | pSMB->Reserved4 = 0; | |
2276 | pSMB->hdr.smb_buf_length += byte_count; | |
2277 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2278 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2279 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 2280 | cifs_stats_inc(&tcon->num_hardlinks); |
1da177e4 LT |
2281 | if (rc) { |
2282 | cFYI(1, ("Send error in SetPathInfo (hard link) = %d", rc)); | |
2283 | } | |
2284 | ||
2285 | cifs_buf_release(pSMB); | |
2286 | if (rc == -EAGAIN) | |
2287 | goto createHardLinkRetry; | |
2288 | ||
2289 | return rc; | |
2290 | } | |
2291 | ||
2292 | int | |
2293 | CIFSCreateHardLink(const int xid, struct cifsTconInfo *tcon, | |
2294 | const char *fromName, const char *toName, | |
737b758c | 2295 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
2296 | { |
2297 | int rc = 0; | |
2298 | NT_RENAME_REQ *pSMB = NULL; | |
2299 | RENAME_RSP *pSMBr = NULL; | |
2300 | int bytes_returned; | |
2301 | int name_len, name_len2; | |
2302 | __u16 count; | |
2303 | ||
2304 | cFYI(1, ("In CIFSCreateHardLink")); | |
2305 | winCreateHardLinkRetry: | |
2306 | ||
2307 | rc = smb_init(SMB_COM_NT_RENAME, 4, tcon, (void **) &pSMB, | |
2308 | (void **) &pSMBr); | |
2309 | if (rc) | |
2310 | return rc; | |
2311 | ||
2312 | pSMB->SearchAttributes = | |
2313 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | | |
2314 | ATTR_DIRECTORY); | |
2315 | pSMB->Flags = cpu_to_le16(CREATE_HARD_LINK); | |
2316 | pSMB->ClusterCount = 0; | |
2317 | ||
2318 | pSMB->BufferFormat = 0x04; | |
2319 | ||
2320 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2321 | name_len = | |
b1a45695 | 2322 | cifsConvertToUCS((__le16 *) pSMB->OldFileName, fromName, |
737b758c | 2323 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2324 | name_len++; /* trailing null */ |
2325 | name_len *= 2; | |
2326 | pSMB->OldFileName[name_len] = 0; /* pad */ | |
50c2f753 | 2327 | pSMB->OldFileName[name_len + 1] = 0x04; |
1da177e4 | 2328 | name_len2 = |
50c2f753 | 2329 | cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2], |
737b758c | 2330 | toName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2331 | name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; |
2332 | name_len2 *= 2; /* convert to bytes */ | |
50c2f753 | 2333 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2334 | name_len = strnlen(fromName, PATH_MAX); |
2335 | name_len++; /* trailing null */ | |
2336 | strncpy(pSMB->OldFileName, fromName, name_len); | |
2337 | name_len2 = strnlen(toName, PATH_MAX); | |
2338 | name_len2++; /* trailing null */ | |
2339 | pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */ | |
2340 | strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2); | |
2341 | name_len2++; /* trailing null */ | |
2342 | name_len2++; /* signature byte */ | |
2343 | } | |
2344 | ||
2345 | count = 1 /* string type byte */ + name_len + name_len2; | |
2346 | pSMB->hdr.smb_buf_length += count; | |
2347 | pSMB->ByteCount = cpu_to_le16(count); | |
2348 | ||
2349 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2350 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 2351 | cifs_stats_inc(&tcon->num_hardlinks); |
1da177e4 LT |
2352 | if (rc) { |
2353 | cFYI(1, ("Send error in hard link (NT rename) = %d", rc)); | |
2354 | } | |
2355 | cifs_buf_release(pSMB); | |
2356 | if (rc == -EAGAIN) | |
2357 | goto winCreateHardLinkRetry; | |
2358 | ||
2359 | return rc; | |
2360 | } | |
2361 | ||
2362 | int | |
2363 | CIFSSMBUnixQuerySymLink(const int xid, struct cifsTconInfo *tcon, | |
2364 | const unsigned char *searchName, | |
2365 | char *symlinkinfo, const int buflen, | |
2366 | const struct nls_table *nls_codepage) | |
2367 | { | |
2368 | /* SMB_QUERY_FILE_UNIX_LINK */ | |
2369 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
2370 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
2371 | int rc = 0; | |
2372 | int bytes_returned; | |
2373 | int name_len; | |
2374 | __u16 params, byte_count; | |
2375 | ||
2376 | cFYI(1, ("In QPathSymLinkInfo (Unix) for path %s", searchName)); | |
2377 | ||
2378 | querySymLinkRetry: | |
2379 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2380 | (void **) &pSMBr); | |
2381 | if (rc) | |
2382 | return rc; | |
2383 | ||
2384 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2385 | name_len = | |
50c2f753 SF |
2386 | cifs_strtoUCS((__le16 *) pSMB->FileName, searchName, |
2387 | PATH_MAX, nls_codepage); | |
1da177e4 LT |
2388 | name_len++; /* trailing null */ |
2389 | name_len *= 2; | |
50c2f753 | 2390 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2391 | name_len = strnlen(searchName, PATH_MAX); |
2392 | name_len++; /* trailing null */ | |
2393 | strncpy(pSMB->FileName, searchName, name_len); | |
2394 | } | |
2395 | ||
2396 | params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ; | |
2397 | pSMB->TotalDataCount = 0; | |
2398 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
2399 | /* BB find exact max data count below from sess structure BB */ | |
2400 | pSMB->MaxDataCount = cpu_to_le16(4000); | |
2401 | pSMB->MaxSetupCount = 0; | |
2402 | pSMB->Reserved = 0; | |
2403 | pSMB->Flags = 0; | |
2404 | pSMB->Timeout = 0; | |
2405 | pSMB->Reserved2 = 0; | |
2406 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 2407 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
1da177e4 LT |
2408 | pSMB->DataCount = 0; |
2409 | pSMB->DataOffset = 0; | |
2410 | pSMB->SetupCount = 1; | |
2411 | pSMB->Reserved3 = 0; | |
2412 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
2413 | byte_count = params + 1 /* pad */ ; | |
2414 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
2415 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2416 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_UNIX_LINK); | |
2417 | pSMB->Reserved4 = 0; | |
2418 | pSMB->hdr.smb_buf_length += byte_count; | |
2419 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2420 | ||
2421 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2422 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2423 | if (rc) { | |
2424 | cFYI(1, ("Send error in QuerySymLinkInfo = %d", rc)); | |
2425 | } else { | |
2426 | /* decode response */ | |
2427 | ||
2428 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
2429 | if (rc || (pSMBr->ByteCount < 2)) | |
2430 | /* BB also check enough total bytes returned */ | |
2431 | rc = -EIO; /* bad smb */ | |
2432 | else { | |
2433 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
2434 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); | |
2435 | ||
2436 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2437 | name_len = UniStrnlen((wchar_t *) ((char *) | |
50c2f753 SF |
2438 | &pSMBr->hdr.Protocol + data_offset), |
2439 | min_t(const int, buflen, count) / 2); | |
737b758c | 2440 | /* BB FIXME investigate remapping reserved chars here */ |
1da177e4 | 2441 | cifs_strfromUCS_le(symlinkinfo, |
50c2f753 SF |
2442 | (__le16 *) ((char *)&pSMBr->hdr.Protocol |
2443 | + data_offset), | |
1da177e4 LT |
2444 | name_len, nls_codepage); |
2445 | } else { | |
2446 | strncpy(symlinkinfo, | |
50c2f753 | 2447 | (char *) &pSMBr->hdr.Protocol + |
1da177e4 LT |
2448 | data_offset, |
2449 | min_t(const int, buflen, count)); | |
2450 | } | |
2451 | symlinkinfo[buflen] = 0; | |
2452 | /* just in case so calling code does not go off the end of buffer */ | |
2453 | } | |
2454 | } | |
2455 | cifs_buf_release(pSMB); | |
2456 | if (rc == -EAGAIN) | |
2457 | goto querySymLinkRetry; | |
2458 | return rc; | |
2459 | } | |
2460 | ||
0a4b92c0 SF |
2461 | /* Initialize NT TRANSACT SMB into small smb request buffer. |
2462 | This assumes that all NT TRANSACTS that we init here have | |
2463 | total parm and data under about 400 bytes (to fit in small cifs | |
2464 | buffer size), which is the case so far, it easily fits. NB: | |
2465 | Setup words themselves and ByteCount | |
2466 | MaxSetupCount (size of returned setup area) and | |
2467 | MaxParameterCount (returned parms size) must be set by caller */ | |
50c2f753 | 2468 | static int |
0a4b92c0 SF |
2469 | smb_init_ntransact(const __u16 sub_command, const int setup_count, |
2470 | const int parm_len, struct cifsTconInfo *tcon, | |
50c2f753 | 2471 | void **ret_buf) |
0a4b92c0 SF |
2472 | { |
2473 | int rc; | |
2474 | __u32 temp_offset; | |
50c2f753 | 2475 | struct smb_com_ntransact_req *pSMB; |
0a4b92c0 SF |
2476 | |
2477 | rc = small_smb_init(SMB_COM_NT_TRANSACT, 19 + setup_count, tcon, | |
2478 | (void **)&pSMB); | |
2479 | if (rc) | |
2480 | return rc; | |
2481 | *ret_buf = (void *)pSMB; | |
2482 | pSMB->Reserved = 0; | |
2483 | pSMB->TotalParameterCount = cpu_to_le32(parm_len); | |
2484 | pSMB->TotalDataCount = 0; | |
2485 | pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf - | |
2486 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
2487 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2488 | pSMB->DataCount = pSMB->TotalDataCount; | |
2489 | temp_offset = offsetof(struct smb_com_ntransact_req, Parms) + | |
2490 | (setup_count * 2) - 4 /* for rfc1001 length itself */; | |
2491 | pSMB->ParameterOffset = cpu_to_le32(temp_offset); | |
2492 | pSMB->DataOffset = cpu_to_le32(temp_offset + parm_len); | |
2493 | pSMB->SetupCount = setup_count; /* no need to le convert byte fields */ | |
2494 | pSMB->SubCommand = cpu_to_le16(sub_command); | |
2495 | return 0; | |
2496 | } | |
2497 | ||
2498 | static int | |
50c2f753 SF |
2499 | validate_ntransact(char *buf, char **ppparm, char **ppdata, |
2500 | int *pdatalen, int *pparmlen) | |
0a4b92c0 | 2501 | { |
50c2f753 | 2502 | char *end_of_smb; |
0a4b92c0 | 2503 | __u32 data_count, data_offset, parm_count, parm_offset; |
50c2f753 | 2504 | struct smb_com_ntransact_rsp *pSMBr; |
0a4b92c0 | 2505 | |
790fe579 | 2506 | if (buf == NULL) |
0a4b92c0 SF |
2507 | return -EINVAL; |
2508 | ||
2509 | pSMBr = (struct smb_com_ntransact_rsp *)buf; | |
2510 | ||
2511 | /* ByteCount was converted from little endian in SendReceive */ | |
50c2f753 | 2512 | end_of_smb = 2 /* sizeof byte count */ + pSMBr->ByteCount + |
0a4b92c0 SF |
2513 | (char *)&pSMBr->ByteCount; |
2514 | ||
0a4b92c0 SF |
2515 | data_offset = le32_to_cpu(pSMBr->DataOffset); |
2516 | data_count = le32_to_cpu(pSMBr->DataCount); | |
50c2f753 | 2517 | parm_offset = le32_to_cpu(pSMBr->ParameterOffset); |
0a4b92c0 SF |
2518 | parm_count = le32_to_cpu(pSMBr->ParameterCount); |
2519 | ||
2520 | *ppparm = (char *)&pSMBr->hdr.Protocol + parm_offset; | |
2521 | *ppdata = (char *)&pSMBr->hdr.Protocol + data_offset; | |
2522 | ||
2523 | /* should we also check that parm and data areas do not overlap? */ | |
790fe579 SF |
2524 | if (*ppparm > end_of_smb) { |
2525 | cFYI(1, ("parms start after end of smb")); | |
0a4b92c0 | 2526 | return -EINVAL; |
790fe579 SF |
2527 | } else if (parm_count + *ppparm > end_of_smb) { |
2528 | cFYI(1, ("parm end after end of smb")); | |
0a4b92c0 | 2529 | return -EINVAL; |
790fe579 SF |
2530 | } else if (*ppdata > end_of_smb) { |
2531 | cFYI(1, ("data starts after end of smb")); | |
0a4b92c0 | 2532 | return -EINVAL; |
790fe579 | 2533 | } else if (data_count + *ppdata > end_of_smb) { |
0a4b92c0 | 2534 | cFYI(1,("data %p + count %d (%p) ends after end of smb %p start %p", |
50c2f753 SF |
2535 | *ppdata, data_count, (data_count + *ppdata), |
2536 | end_of_smb, pSMBr)); | |
0a4b92c0 | 2537 | return -EINVAL; |
790fe579 SF |
2538 | } else if (parm_count + data_count > pSMBr->ByteCount) { |
2539 | cFYI(1, ("parm count and data count larger than SMB")); | |
0a4b92c0 SF |
2540 | return -EINVAL; |
2541 | } | |
2542 | return 0; | |
2543 | } | |
2544 | ||
1da177e4 LT |
2545 | int |
2546 | CIFSSMBQueryReparseLinkInfo(const int xid, struct cifsTconInfo *tcon, | |
2547 | const unsigned char *searchName, | |
50c2f753 | 2548 | char *symlinkinfo, const int buflen, __u16 fid, |
1da177e4 LT |
2549 | const struct nls_table *nls_codepage) |
2550 | { | |
2551 | int rc = 0; | |
2552 | int bytes_returned; | |
2553 | int name_len; | |
50c2f753 SF |
2554 | struct smb_com_transaction_ioctl_req *pSMB; |
2555 | struct smb_com_transaction_ioctl_rsp *pSMBr; | |
1da177e4 LT |
2556 | |
2557 | cFYI(1, ("In Windows reparse style QueryLink for path %s", searchName)); | |
2558 | rc = smb_init(SMB_COM_NT_TRANSACT, 23, tcon, (void **) &pSMB, | |
2559 | (void **) &pSMBr); | |
2560 | if (rc) | |
2561 | return rc; | |
2562 | ||
2563 | pSMB->TotalParameterCount = 0 ; | |
2564 | pSMB->TotalDataCount = 0; | |
2565 | pSMB->MaxParameterCount = cpu_to_le32(2); | |
2566 | /* BB find exact data count max from sess structure BB */ | |
0a4b92c0 SF |
2567 | pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf - |
2568 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
1da177e4 LT |
2569 | pSMB->MaxSetupCount = 4; |
2570 | pSMB->Reserved = 0; | |
2571 | pSMB->ParameterOffset = 0; | |
2572 | pSMB->DataCount = 0; | |
2573 | pSMB->DataOffset = 0; | |
2574 | pSMB->SetupCount = 4; | |
2575 | pSMB->SubCommand = cpu_to_le16(NT_TRANSACT_IOCTL); | |
2576 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2577 | pSMB->FunctionCode = cpu_to_le32(FSCTL_GET_REPARSE_POINT); | |
2578 | pSMB->IsFsctl = 1; /* FSCTL */ | |
2579 | pSMB->IsRootFlag = 0; | |
2580 | pSMB->Fid = fid; /* file handle always le */ | |
2581 | pSMB->ByteCount = 0; | |
2582 | ||
2583 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2584 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2585 | if (rc) { | |
2586 | cFYI(1, ("Send error in QueryReparseLinkInfo = %d", rc)); | |
2587 | } else { /* decode response */ | |
2588 | __u32 data_offset = le32_to_cpu(pSMBr->DataOffset); | |
2589 | __u32 data_count = le32_to_cpu(pSMBr->DataCount); | |
2590 | if ((pSMBr->ByteCount < 2) || (data_offset > 512)) | |
2591 | /* BB also check enough total bytes returned */ | |
2592 | rc = -EIO; /* bad smb */ | |
2593 | else { | |
790fe579 | 2594 | if (data_count && (data_count < 2048)) { |
50c2f753 | 2595 | char *end_of_smb = 2 /* sizeof byte count */ + |
0a4b92c0 SF |
2596 | pSMBr->ByteCount + |
2597 | (char *)&pSMBr->ByteCount; | |
1da177e4 | 2598 | |
50c2f753 SF |
2599 | struct reparse_data *reparse_buf = |
2600 | (struct reparse_data *) | |
2601 | ((char *)&pSMBr->hdr.Protocol | |
2602 | + data_offset); | |
790fe579 | 2603 | if ((char *)reparse_buf >= end_of_smb) { |
1da177e4 LT |
2604 | rc = -EIO; |
2605 | goto qreparse_out; | |
2606 | } | |
790fe579 | 2607 | if ((reparse_buf->LinkNamesBuf + |
1da177e4 LT |
2608 | reparse_buf->TargetNameOffset + |
2609 | reparse_buf->TargetNameLen) > | |
2610 | end_of_smb) { | |
2611 | cFYI(1,("reparse buf extended beyond SMB")); | |
2612 | rc = -EIO; | |
2613 | goto qreparse_out; | |
2614 | } | |
50c2f753 | 2615 | |
1da177e4 LT |
2616 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { |
2617 | name_len = UniStrnlen((wchar_t *) | |
50c2f753 SF |
2618 | (reparse_buf->LinkNamesBuf + |
2619 | reparse_buf->TargetNameOffset), | |
2620 | min(buflen/2, | |
2621 | reparse_buf->TargetNameLen / 2)); | |
1da177e4 | 2622 | cifs_strfromUCS_le(symlinkinfo, |
50c2f753 | 2623 | (__le16 *) (reparse_buf->LinkNamesBuf + |
1da177e4 LT |
2624 | reparse_buf->TargetNameOffset), |
2625 | name_len, nls_codepage); | |
2626 | } else { /* ASCII names */ | |
50c2f753 SF |
2627 | strncpy(symlinkinfo, |
2628 | reparse_buf->LinkNamesBuf + | |
2629 | reparse_buf->TargetNameOffset, | |
2630 | min_t(const int, buflen, | |
2631 | reparse_buf->TargetNameLen)); | |
1da177e4 LT |
2632 | } |
2633 | } else { | |
2634 | rc = -EIO; | |
2635 | cFYI(1,("Invalid return data count on get reparse info ioctl")); | |
2636 | } | |
2637 | symlinkinfo[buflen] = 0; /* just in case so the caller | |
2638 | does not go off the end of the buffer */ | |
50c2f753 | 2639 | cFYI(1, ("readlink result - %s", symlinkinfo)); |
1da177e4 LT |
2640 | } |
2641 | } | |
2642 | qreparse_out: | |
4a6d87f1 | 2643 | cifs_buf_release(pSMB); |
1da177e4 LT |
2644 | |
2645 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
2646 | since file handle passed in no longer valid */ | |
2647 | ||
2648 | return rc; | |
2649 | } | |
2650 | ||
2651 | #ifdef CONFIG_CIFS_POSIX | |
2652 | ||
2653 | /*Convert an Access Control Entry from wire format to local POSIX xattr format*/ | |
50c2f753 SF |
2654 | static void cifs_convert_ace(posix_acl_xattr_entry *ace, |
2655 | struct cifs_posix_ace *cifs_ace) | |
1da177e4 LT |
2656 | { |
2657 | /* u8 cifs fields do not need le conversion */ | |
ff7feac9 SF |
2658 | ace->e_perm = cpu_to_le16(cifs_ace->cifs_e_perm); |
2659 | ace->e_tag = cpu_to_le16(cifs_ace->cifs_e_tag); | |
2660 | ace->e_id = cpu_to_le32(le64_to_cpu(cifs_ace->cifs_uid)); | |
1da177e4 LT |
2661 | /* cFYI(1,("perm %d tag %d id %d",ace->e_perm,ace->e_tag,ace->e_id)); */ |
2662 | ||
2663 | return; | |
2664 | } | |
2665 | ||
2666 | /* Convert ACL from CIFS POSIX wire format to local Linux POSIX ACL xattr */ | |
50c2f753 SF |
2667 | static int cifs_copy_posix_acl(char *trgt, char *src, const int buflen, |
2668 | const int acl_type, const int size_of_data_area) | |
1da177e4 LT |
2669 | { |
2670 | int size = 0; | |
2671 | int i; | |
2672 | __u16 count; | |
50c2f753 SF |
2673 | struct cifs_posix_ace *pACE; |
2674 | struct cifs_posix_acl *cifs_acl = (struct cifs_posix_acl *)src; | |
2675 | posix_acl_xattr_header *local_acl = (posix_acl_xattr_header *)trgt; | |
1da177e4 LT |
2676 | |
2677 | if (le16_to_cpu(cifs_acl->version) != CIFS_ACL_VERSION) | |
2678 | return -EOPNOTSUPP; | |
2679 | ||
790fe579 | 2680 | if (acl_type & ACL_TYPE_ACCESS) { |
1da177e4 LT |
2681 | count = le16_to_cpu(cifs_acl->access_entry_count); |
2682 | pACE = &cifs_acl->ace_array[0]; | |
2683 | size = sizeof(struct cifs_posix_acl); | |
2684 | size += sizeof(struct cifs_posix_ace) * count; | |
2685 | /* check if we would go beyond end of SMB */ | |
790fe579 | 2686 | if (size_of_data_area < size) { |
50c2f753 SF |
2687 | cFYI(1, ("bad CIFS POSIX ACL size %d vs. %d", |
2688 | size_of_data_area, size)); | |
1da177e4 LT |
2689 | return -EINVAL; |
2690 | } | |
790fe579 | 2691 | } else if (acl_type & ACL_TYPE_DEFAULT) { |
1da177e4 LT |
2692 | count = le16_to_cpu(cifs_acl->access_entry_count); |
2693 | size = sizeof(struct cifs_posix_acl); | |
2694 | size += sizeof(struct cifs_posix_ace) * count; | |
2695 | /* skip past access ACEs to get to default ACEs */ | |
2696 | pACE = &cifs_acl->ace_array[count]; | |
2697 | count = le16_to_cpu(cifs_acl->default_entry_count); | |
2698 | size += sizeof(struct cifs_posix_ace) * count; | |
2699 | /* check if we would go beyond end of SMB */ | |
790fe579 | 2700 | if (size_of_data_area < size) |
1da177e4 LT |
2701 | return -EINVAL; |
2702 | } else { | |
2703 | /* illegal type */ | |
2704 | return -EINVAL; | |
2705 | } | |
2706 | ||
2707 | size = posix_acl_xattr_size(count); | |
790fe579 | 2708 | if ((buflen == 0) || (local_acl == NULL)) { |
50c2f753 | 2709 | /* used to query ACL EA size */ |
790fe579 | 2710 | } else if (size > buflen) { |
1da177e4 LT |
2711 | return -ERANGE; |
2712 | } else /* buffer big enough */ { | |
ff7feac9 | 2713 | local_acl->a_version = cpu_to_le32(POSIX_ACL_XATTR_VERSION); |
50c2f753 SF |
2714 | for (i = 0; i < count ; i++) { |
2715 | cifs_convert_ace(&local_acl->a_entries[i], pACE); | |
2716 | pACE++; | |
1da177e4 LT |
2717 | } |
2718 | } | |
2719 | return size; | |
2720 | } | |
2721 | ||
50c2f753 SF |
2722 | static __u16 convert_ace_to_cifs_ace(struct cifs_posix_ace *cifs_ace, |
2723 | const posix_acl_xattr_entry *local_ace) | |
1da177e4 LT |
2724 | { |
2725 | __u16 rc = 0; /* 0 = ACL converted ok */ | |
2726 | ||
ff7feac9 SF |
2727 | cifs_ace->cifs_e_perm = le16_to_cpu(local_ace->e_perm); |
2728 | cifs_ace->cifs_e_tag = le16_to_cpu(local_ace->e_tag); | |
1da177e4 | 2729 | /* BB is there a better way to handle the large uid? */ |
790fe579 | 2730 | if (local_ace->e_id == cpu_to_le32(-1)) { |
1da177e4 LT |
2731 | /* Probably no need to le convert -1 on any arch but can not hurt */ |
2732 | cifs_ace->cifs_uid = cpu_to_le64(-1); | |
50c2f753 | 2733 | } else |
ff7feac9 | 2734 | cifs_ace->cifs_uid = cpu_to_le64(le32_to_cpu(local_ace->e_id)); |
50c2f753 | 2735 | /*cFYI(1,("perm %d tag %d id %d",ace->e_perm,ace->e_tag,ace->e_id));*/ |
1da177e4 LT |
2736 | return rc; |
2737 | } | |
2738 | ||
2739 | /* Convert ACL from local Linux POSIX xattr to CIFS POSIX ACL wire format */ | |
50c2f753 SF |
2740 | static __u16 ACL_to_cifs_posix(char *parm_data, const char *pACL, |
2741 | const int buflen, const int acl_type) | |
1da177e4 LT |
2742 | { |
2743 | __u16 rc = 0; | |
50c2f753 SF |
2744 | struct cifs_posix_acl *cifs_acl = (struct cifs_posix_acl *)parm_data; |
2745 | posix_acl_xattr_header *local_acl = (posix_acl_xattr_header *)pACL; | |
1da177e4 LT |
2746 | int count; |
2747 | int i; | |
2748 | ||
790fe579 | 2749 | if ((buflen == 0) || (pACL == NULL) || (cifs_acl == NULL)) |
1da177e4 LT |
2750 | return 0; |
2751 | ||
2752 | count = posix_acl_xattr_count((size_t)buflen); | |
2753 | cFYI(1,("setting acl with %d entries from buf of length %d and version of %d", | |
ff7feac9 | 2754 | count, buflen, le32_to_cpu(local_acl->a_version))); |
790fe579 | 2755 | if (le32_to_cpu(local_acl->a_version) != 2) { |
50c2f753 | 2756 | cFYI(1, ("unknown POSIX ACL version %d", |
ff7feac9 | 2757 | le32_to_cpu(local_acl->a_version))); |
1da177e4 LT |
2758 | return 0; |
2759 | } | |
2760 | cifs_acl->version = cpu_to_le16(1); | |
790fe579 | 2761 | if (acl_type == ACL_TYPE_ACCESS) |
ff7feac9 | 2762 | cifs_acl->access_entry_count = cpu_to_le16(count); |
790fe579 | 2763 | else if (acl_type == ACL_TYPE_DEFAULT) |
ff7feac9 | 2764 | cifs_acl->default_entry_count = cpu_to_le16(count); |
1da177e4 | 2765 | else { |
50c2f753 | 2766 | cFYI(1, ("unknown ACL type %d", acl_type)); |
1da177e4 LT |
2767 | return 0; |
2768 | } | |
50c2f753 | 2769 | for (i = 0; i < count; i++) { |
1da177e4 LT |
2770 | rc = convert_ace_to_cifs_ace(&cifs_acl->ace_array[i], |
2771 | &local_acl->a_entries[i]); | |
790fe579 | 2772 | if (rc != 0) { |
1da177e4 LT |
2773 | /* ACE not converted */ |
2774 | break; | |
2775 | } | |
2776 | } | |
790fe579 | 2777 | if (rc == 0) { |
1da177e4 LT |
2778 | rc = (__u16)(count * sizeof(struct cifs_posix_ace)); |
2779 | rc += sizeof(struct cifs_posix_acl); | |
2780 | /* BB add check to make sure ACL does not overflow SMB */ | |
2781 | } | |
2782 | return rc; | |
2783 | } | |
2784 | ||
2785 | int | |
2786 | CIFSSMBGetPosixACL(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 SF |
2787 | const unsigned char *searchName, |
2788 | char *acl_inf, const int buflen, const int acl_type, | |
2789 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
2790 | { |
2791 | /* SMB_QUERY_POSIX_ACL */ | |
2792 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
2793 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
2794 | int rc = 0; | |
2795 | int bytes_returned; | |
2796 | int name_len; | |
2797 | __u16 params, byte_count; | |
50c2f753 | 2798 | |
1da177e4 LT |
2799 | cFYI(1, ("In GetPosixACL (Unix) for path %s", searchName)); |
2800 | ||
2801 | queryAclRetry: | |
2802 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2803 | (void **) &pSMBr); | |
2804 | if (rc) | |
2805 | return rc; | |
50c2f753 | 2806 | |
1da177e4 LT |
2807 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
2808 | name_len = | |
50c2f753 | 2809 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 2810 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2811 | name_len++; /* trailing null */ |
2812 | name_len *= 2; | |
2813 | pSMB->FileName[name_len] = 0; | |
2814 | pSMB->FileName[name_len+1] = 0; | |
50c2f753 | 2815 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2816 | name_len = strnlen(searchName, PATH_MAX); |
2817 | name_len++; /* trailing null */ | |
2818 | strncpy(pSMB->FileName, searchName, name_len); | |
2819 | } | |
2820 | ||
2821 | params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ; | |
2822 | pSMB->TotalDataCount = 0; | |
2823 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
50c2f753 | 2824 | /* BB find exact max data count below from sess structure BB */ |
1da177e4 LT |
2825 | pSMB->MaxDataCount = cpu_to_le16(4000); |
2826 | pSMB->MaxSetupCount = 0; | |
2827 | pSMB->Reserved = 0; | |
2828 | pSMB->Flags = 0; | |
2829 | pSMB->Timeout = 0; | |
2830 | pSMB->Reserved2 = 0; | |
2831 | pSMB->ParameterOffset = cpu_to_le16( | |
50c2f753 SF |
2832 | offsetof(struct smb_com_transaction2_qpi_req, |
2833 | InformationLevel) - 4); | |
1da177e4 LT |
2834 | pSMB->DataCount = 0; |
2835 | pSMB->DataOffset = 0; | |
2836 | pSMB->SetupCount = 1; | |
2837 | pSMB->Reserved3 = 0; | |
2838 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
2839 | byte_count = params + 1 /* pad */ ; | |
2840 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
2841 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2842 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_POSIX_ACL); | |
2843 | pSMB->Reserved4 = 0; | |
2844 | pSMB->hdr.smb_buf_length += byte_count; | |
2845 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2846 | ||
2847 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2848 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
0a4b92c0 | 2849 | cifs_stats_inc(&tcon->num_acl_get); |
1da177e4 LT |
2850 | if (rc) { |
2851 | cFYI(1, ("Send error in Query POSIX ACL = %d", rc)); | |
2852 | } else { | |
2853 | /* decode response */ | |
50c2f753 | 2854 | |
1da177e4 LT |
2855 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
2856 | if (rc || (pSMBr->ByteCount < 2)) | |
2857 | /* BB also check enough total bytes returned */ | |
2858 | rc = -EIO; /* bad smb */ | |
2859 | else { | |
2860 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
2861 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); | |
2862 | rc = cifs_copy_posix_acl(acl_inf, | |
2863 | (char *)&pSMBr->hdr.Protocol+data_offset, | |
50c2f753 | 2864 | buflen, acl_type, count); |
1da177e4 LT |
2865 | } |
2866 | } | |
2867 | cifs_buf_release(pSMB); | |
2868 | if (rc == -EAGAIN) | |
2869 | goto queryAclRetry; | |
2870 | return rc; | |
2871 | } | |
2872 | ||
2873 | int | |
2874 | CIFSSMBSetPosixACL(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 SF |
2875 | const unsigned char *fileName, |
2876 | const char *local_acl, const int buflen, | |
2877 | const int acl_type, | |
2878 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
2879 | { |
2880 | struct smb_com_transaction2_spi_req *pSMB = NULL; | |
2881 | struct smb_com_transaction2_spi_rsp *pSMBr = NULL; | |
2882 | char *parm_data; | |
2883 | int name_len; | |
2884 | int rc = 0; | |
2885 | int bytes_returned = 0; | |
2886 | __u16 params, byte_count, data_count, param_offset, offset; | |
2887 | ||
2888 | cFYI(1, ("In SetPosixACL (Unix) for path %s", fileName)); | |
2889 | setAclRetry: | |
2890 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
50c2f753 | 2891 | (void **) &pSMBr); |
1da177e4 LT |
2892 | if (rc) |
2893 | return rc; | |
2894 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2895 | name_len = | |
50c2f753 | 2896 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 2897 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2898 | name_len++; /* trailing null */ |
2899 | name_len *= 2; | |
50c2f753 | 2900 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2901 | name_len = strnlen(fileName, PATH_MAX); |
2902 | name_len++; /* trailing null */ | |
2903 | strncpy(pSMB->FileName, fileName, name_len); | |
2904 | } | |
2905 | params = 6 + name_len; | |
2906 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
2907 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB size from sess */ | |
2908 | pSMB->MaxSetupCount = 0; | |
2909 | pSMB->Reserved = 0; | |
2910 | pSMB->Flags = 0; | |
2911 | pSMB->Timeout = 0; | |
2912 | pSMB->Reserved2 = 0; | |
2913 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 2914 | InformationLevel) - 4; |
1da177e4 LT |
2915 | offset = param_offset + params; |
2916 | parm_data = ((char *) &pSMB->hdr.Protocol) + offset; | |
2917 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
2918 | ||
2919 | /* convert to on the wire format for POSIX ACL */ | |
50c2f753 | 2920 | data_count = ACL_to_cifs_posix(parm_data, local_acl, buflen, acl_type); |
1da177e4 | 2921 | |
790fe579 | 2922 | if (data_count == 0) { |
1da177e4 LT |
2923 | rc = -EOPNOTSUPP; |
2924 | goto setACLerrorExit; | |
2925 | } | |
2926 | pSMB->DataOffset = cpu_to_le16(offset); | |
2927 | pSMB->SetupCount = 1; | |
2928 | pSMB->Reserved3 = 0; | |
2929 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
2930 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_POSIX_ACL); | |
2931 | byte_count = 3 /* pad */ + params + data_count; | |
2932 | pSMB->DataCount = cpu_to_le16(data_count); | |
2933 | pSMB->TotalDataCount = pSMB->DataCount; | |
2934 | pSMB->ParameterCount = cpu_to_le16(params); | |
2935 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
2936 | pSMB->Reserved4 = 0; | |
2937 | pSMB->hdr.smb_buf_length += byte_count; | |
2938 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2939 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
50c2f753 | 2940 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
1da177e4 LT |
2941 | if (rc) { |
2942 | cFYI(1, ("Set POSIX ACL returned %d", rc)); | |
2943 | } | |
2944 | ||
2945 | setACLerrorExit: | |
2946 | cifs_buf_release(pSMB); | |
2947 | if (rc == -EAGAIN) | |
2948 | goto setAclRetry; | |
2949 | return rc; | |
2950 | } | |
2951 | ||
f654bac2 SF |
2952 | /* BB fix tabs in this function FIXME BB */ |
2953 | int | |
2954 | CIFSGetExtAttr(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 | 2955 | const int netfid, __u64 * pExtAttrBits, __u64 *pMask) |
f654bac2 | 2956 | { |
50c2f753 SF |
2957 | int rc = 0; |
2958 | struct smb_t2_qfi_req *pSMB = NULL; | |
2959 | struct smb_t2_qfi_rsp *pSMBr = NULL; | |
2960 | int bytes_returned; | |
2961 | __u16 params, byte_count; | |
f654bac2 | 2962 | |
790fe579 SF |
2963 | cFYI(1, ("In GetExtAttr")); |
2964 | if (tcon == NULL) | |
2965 | return -ENODEV; | |
f654bac2 SF |
2966 | |
2967 | GetExtAttrRetry: | |
790fe579 SF |
2968 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
2969 | (void **) &pSMBr); | |
2970 | if (rc) | |
2971 | return rc; | |
f654bac2 | 2972 | |
790fe579 SF |
2973 | params = 2 /* level */ +2 /* fid */; |
2974 | pSMB->t2.TotalDataCount = 0; | |
2975 | pSMB->t2.MaxParameterCount = cpu_to_le16(4); | |
2976 | /* BB find exact max data count below from sess structure BB */ | |
2977 | pSMB->t2.MaxDataCount = cpu_to_le16(4000); | |
2978 | pSMB->t2.MaxSetupCount = 0; | |
2979 | pSMB->t2.Reserved = 0; | |
2980 | pSMB->t2.Flags = 0; | |
2981 | pSMB->t2.Timeout = 0; | |
2982 | pSMB->t2.Reserved2 = 0; | |
2983 | pSMB->t2.ParameterOffset = cpu_to_le16(offsetof(struct smb_t2_qfi_req, | |
2984 | Fid) - 4); | |
2985 | pSMB->t2.DataCount = 0; | |
2986 | pSMB->t2.DataOffset = 0; | |
2987 | pSMB->t2.SetupCount = 1; | |
2988 | pSMB->t2.Reserved3 = 0; | |
2989 | pSMB->t2.SubCommand = cpu_to_le16(TRANS2_QUERY_FILE_INFORMATION); | |
2990 | byte_count = params + 1 /* pad */ ; | |
2991 | pSMB->t2.TotalParameterCount = cpu_to_le16(params); | |
2992 | pSMB->t2.ParameterCount = pSMB->t2.TotalParameterCount; | |
2993 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_ATTR_FLAGS); | |
2994 | pSMB->Pad = 0; | |
f654bac2 | 2995 | pSMB->Fid = netfid; |
790fe579 SF |
2996 | pSMB->hdr.smb_buf_length += byte_count; |
2997 | pSMB->t2.ByteCount = cpu_to_le16(byte_count); | |
2998 | ||
2999 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3000 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3001 | if (rc) { | |
3002 | cFYI(1, ("error %d in GetExtAttr", rc)); | |
3003 | } else { | |
3004 | /* decode response */ | |
3005 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3006 | if (rc || (pSMBr->ByteCount < 2)) | |
3007 | /* BB also check enough total bytes returned */ | |
3008 | /* If rc should we check for EOPNOSUPP and | |
3009 | disable the srvino flag? or in caller? */ | |
3010 | rc = -EIO; /* bad smb */ | |
3011 | else { | |
3012 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
3013 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); | |
3014 | struct file_chattr_info *pfinfo; | |
3015 | /* BB Do we need a cast or hash here ? */ | |
3016 | if (count != 16) { | |
3017 | cFYI(1, ("Illegal size ret in GetExtAttr")); | |
3018 | rc = -EIO; | |
3019 | goto GetExtAttrOut; | |
3020 | } | |
3021 | pfinfo = (struct file_chattr_info *) | |
3022 | (data_offset + (char *) &pSMBr->hdr.Protocol); | |
3023 | *pExtAttrBits = le64_to_cpu(pfinfo->mode); | |
f654bac2 | 3024 | *pMask = le64_to_cpu(pfinfo->mask); |
790fe579 SF |
3025 | } |
3026 | } | |
f654bac2 | 3027 | GetExtAttrOut: |
790fe579 SF |
3028 | cifs_buf_release(pSMB); |
3029 | if (rc == -EAGAIN) | |
3030 | goto GetExtAttrRetry; | |
3031 | return rc; | |
f654bac2 SF |
3032 | } |
3033 | ||
f654bac2 | 3034 | #endif /* CONFIG_POSIX */ |
1da177e4 | 3035 | |
eeac8047 SF |
3036 | |
3037 | /* security id for everyone */ | |
c5a69d57 | 3038 | static const struct cifs_sid sid_everyone = |
2cd646a2 | 3039 | {1, 1, {0, 0, 0, 0, 0, 0}, {0, 0, 0, 0}}; |
eeac8047 | 3040 | /* group users */ |
c5a69d57 | 3041 | static const struct cifs_sid sid_user = |
2cd646a2 | 3042 | {1, 2 , {0, 0, 0, 0, 0, 5}, {32, 545, 0, 0}}; |
eeac8047 | 3043 | |
0a4b92c0 | 3044 | /* Convert CIFS ACL to POSIX form */ |
50c2f753 | 3045 | static int parse_sec_desc(struct cifs_sid *psec_desc, int acl_len) |
0a4b92c0 | 3046 | { |
0a4b92c0 SF |
3047 | return 0; |
3048 | } | |
3049 | ||
3050 | /* Get Security Descriptor (by handle) from remote server for a file or dir */ | |
3051 | int | |
3052 | CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid, | |
50c2f753 | 3053 | /* BB fix up return info */ char *acl_inf, const int buflen, |
0a4b92c0 SF |
3054 | const int acl_type /* ACCESS/DEFAULT not sure implication */) |
3055 | { | |
3056 | int rc = 0; | |
3057 | int buf_type = 0; | |
3058 | QUERY_SEC_DESC_REQ * pSMB; | |
3059 | struct kvec iov[1]; | |
3060 | ||
3061 | cFYI(1, ("GetCifsACL")); | |
3062 | ||
50c2f753 | 3063 | rc = smb_init_ntransact(NT_TRANSACT_QUERY_SECURITY_DESC, 0, |
0a4b92c0 SF |
3064 | 8 /* parm len */, tcon, (void **) &pSMB); |
3065 | if (rc) | |
3066 | return rc; | |
3067 | ||
3068 | pSMB->MaxParameterCount = cpu_to_le32(4); | |
3069 | /* BB TEST with big acls that might need to be e.g. larger than 16K */ | |
3070 | pSMB->MaxSetupCount = 0; | |
3071 | pSMB->Fid = fid; /* file handle always le */ | |
3072 | pSMB->AclFlags = cpu_to_le32(CIFS_ACL_OWNER | CIFS_ACL_GROUP | | |
3073 | CIFS_ACL_DACL); | |
3074 | pSMB->ByteCount = cpu_to_le16(11); /* 3 bytes pad + 8 bytes parm */ | |
3075 | pSMB->hdr.smb_buf_length += 11; | |
3076 | iov[0].iov_base = (char *)pSMB; | |
3077 | iov[0].iov_len = pSMB->hdr.smb_buf_length + 4; | |
3078 | ||
3079 | rc = SendReceive2(xid, tcon->ses, iov, 1 /* num iovec */, &buf_type, 0); | |
3080 | cifs_stats_inc(&tcon->num_acl_get); | |
3081 | if (rc) { | |
3082 | cFYI(1, ("Send error in QuerySecDesc = %d", rc)); | |
3083 | } else { /* decode response */ | |
50c2f753 | 3084 | struct cifs_sid *psec_desc; |
0a4b92c0 SF |
3085 | __le32 * parm; |
3086 | int parm_len; | |
3087 | int data_len; | |
3088 | int acl_len; | |
50c2f753 | 3089 | struct smb_com_ntransact_rsp *pSMBr; |
0a4b92c0 SF |
3090 | |
3091 | /* validate_nttransact */ | |
50c2f753 | 3092 | rc = validate_ntransact(iov[0].iov_base, (char **)&parm, |
0a4b92c0 SF |
3093 | (char **)&psec_desc, |
3094 | &parm_len, &data_len); | |
790fe579 | 3095 | if (rc) |
0a4b92c0 SF |
3096 | goto qsec_out; |
3097 | pSMBr = (struct smb_com_ntransact_rsp *)iov[0].iov_base; | |
3098 | ||
50c2f753 SF |
3099 | cERROR(1, ("smb %p parm %p data %p", |
3100 | pSMBr, parm, psec_desc)); /* BB removeme BB */ | |
0a4b92c0 SF |
3101 | |
3102 | if (le32_to_cpu(pSMBr->ParameterCount) != 4) { | |
3103 | rc = -EIO; /* bad smb */ | |
3104 | goto qsec_out; | |
3105 | } | |
3106 | ||
3107 | /* BB check that data area is minimum length and as big as acl_len */ | |
3108 | ||
3109 | acl_len = le32_to_cpu(*(__le32 *)parm); | |
790fe579 | 3110 | /* BB check if (acl_len > bufsize) */ |
0a4b92c0 SF |
3111 | |
3112 | parse_sec_desc(psec_desc, acl_len); | |
3113 | } | |
3114 | qsec_out: | |
790fe579 | 3115 | if (buf_type == CIFS_SMALL_BUFFER) |
0a4b92c0 | 3116 | cifs_small_buf_release(iov[0].iov_base); |
790fe579 | 3117 | else if (buf_type == CIFS_LARGE_BUFFER) |
0a4b92c0 | 3118 | cifs_buf_release(iov[0].iov_base); |
4b8f930f | 3119 | /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */ |
0a4b92c0 SF |
3120 | return rc; |
3121 | } | |
3122 | ||
6b8edfe0 SF |
3123 | /* Legacy Query Path Information call for lookup to old servers such |
3124 | as Win9x/WinME */ | |
3125 | int SMBQueryInformation(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 SF |
3126 | const unsigned char *searchName, |
3127 | FILE_ALL_INFO *pFinfo, | |
3128 | const struct nls_table *nls_codepage, int remap) | |
6b8edfe0 SF |
3129 | { |
3130 | QUERY_INFORMATION_REQ * pSMB; | |
3131 | QUERY_INFORMATION_RSP * pSMBr; | |
3132 | int rc = 0; | |
3133 | int bytes_returned; | |
3134 | int name_len; | |
3135 | ||
50c2f753 | 3136 | cFYI(1, ("In SMBQPath path %s", searchName)); |
6b8edfe0 SF |
3137 | QInfRetry: |
3138 | rc = smb_init(SMB_COM_QUERY_INFORMATION, 0, tcon, (void **) &pSMB, | |
50c2f753 | 3139 | (void **) &pSMBr); |
6b8edfe0 SF |
3140 | if (rc) |
3141 | return rc; | |
3142 | ||
3143 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3144 | name_len = | |
50c2f753 SF |
3145 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
3146 | PATH_MAX, nls_codepage, remap); | |
6b8edfe0 SF |
3147 | name_len++; /* trailing null */ |
3148 | name_len *= 2; | |
50c2f753 | 3149 | } else { |
6b8edfe0 SF |
3150 | name_len = strnlen(searchName, PATH_MAX); |
3151 | name_len++; /* trailing null */ | |
3152 | strncpy(pSMB->FileName, searchName, name_len); | |
3153 | } | |
3154 | pSMB->BufferFormat = 0x04; | |
50c2f753 | 3155 | name_len++; /* account for buffer type byte */ |
6b8edfe0 SF |
3156 | pSMB->hdr.smb_buf_length += (__u16) name_len; |
3157 | pSMB->ByteCount = cpu_to_le16(name_len); | |
3158 | ||
3159 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
50c2f753 | 3160 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
6b8edfe0 SF |
3161 | if (rc) { |
3162 | cFYI(1, ("Send error in QueryInfo = %d", rc)); | |
3163 | } else if (pFinfo) { /* decode response */ | |
1bd5bbcb SF |
3164 | struct timespec ts; |
3165 | __u32 time = le32_to_cpu(pSMBr->last_write_time); | |
3166 | /* BB FIXME - add time zone adjustment BB */ | |
6b8edfe0 | 3167 | memset(pFinfo, 0, sizeof(FILE_ALL_INFO)); |
1bd5bbcb SF |
3168 | ts.tv_nsec = 0; |
3169 | ts.tv_sec = time; | |
3170 | /* decode time fields */ | |
733f99ac | 3171 | pFinfo->ChangeTime = cpu_to_le64(cifs_UnixTimeToNT(ts)); |
1bd5bbcb SF |
3172 | pFinfo->LastWriteTime = pFinfo->ChangeTime; |
3173 | pFinfo->LastAccessTime = 0; | |
70ca734a SF |
3174 | pFinfo->AllocationSize = |
3175 | cpu_to_le64(le32_to_cpu(pSMBr->size)); | |
3176 | pFinfo->EndOfFile = pFinfo->AllocationSize; | |
3177 | pFinfo->Attributes = | |
3178 | cpu_to_le32(le16_to_cpu(pSMBr->attr)); | |
6b8edfe0 SF |
3179 | } else |
3180 | rc = -EIO; /* bad buffer passed in */ | |
3181 | ||
3182 | cifs_buf_release(pSMB); | |
3183 | ||
3184 | if (rc == -EAGAIN) | |
3185 | goto QInfRetry; | |
3186 | ||
3187 | return rc; | |
3188 | } | |
3189 | ||
3190 | ||
3191 | ||
3192 | ||
1da177e4 LT |
3193 | int |
3194 | CIFSSMBQPathInfo(const int xid, struct cifsTconInfo *tcon, | |
3195 | const unsigned char *searchName, | |
3196 | FILE_ALL_INFO * pFindData, | |
acf1a1b1 | 3197 | int legacy /* old style infolevel */, |
737b758c | 3198 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
3199 | { |
3200 | /* level 263 SMB_QUERY_FILE_ALL_INFO */ | |
3201 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
3202 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
3203 | int rc = 0; | |
3204 | int bytes_returned; | |
3205 | int name_len; | |
3206 | __u16 params, byte_count; | |
3207 | ||
3208 | /* cFYI(1, ("In QPathInfo path %s", searchName)); */ | |
3209 | QPathInfoRetry: | |
3210 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3211 | (void **) &pSMBr); | |
3212 | if (rc) | |
3213 | return rc; | |
3214 | ||
3215 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3216 | name_len = | |
50c2f753 | 3217 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 3218 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
3219 | name_len++; /* trailing null */ |
3220 | name_len *= 2; | |
50c2f753 | 3221 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
3222 | name_len = strnlen(searchName, PATH_MAX); |
3223 | name_len++; /* trailing null */ | |
3224 | strncpy(pSMB->FileName, searchName, name_len); | |
3225 | } | |
3226 | ||
50c2f753 | 3227 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */; |
1da177e4 LT |
3228 | pSMB->TotalDataCount = 0; |
3229 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3230 | pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ | |
3231 | pSMB->MaxSetupCount = 0; | |
3232 | pSMB->Reserved = 0; | |
3233 | pSMB->Flags = 0; | |
3234 | pSMB->Timeout = 0; | |
3235 | pSMB->Reserved2 = 0; | |
3236 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 3237 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
1da177e4 LT |
3238 | pSMB->DataCount = 0; |
3239 | pSMB->DataOffset = 0; | |
3240 | pSMB->SetupCount = 1; | |
3241 | pSMB->Reserved3 = 0; | |
3242 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
3243 | byte_count = params + 1 /* pad */ ; | |
3244 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3245 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
790fe579 | 3246 | if (legacy) |
acf1a1b1 SF |
3247 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_STANDARD); |
3248 | else | |
3249 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_ALL_INFO); | |
1da177e4 LT |
3250 | pSMB->Reserved4 = 0; |
3251 | pSMB->hdr.smb_buf_length += byte_count; | |
3252 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3253 | ||
3254 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3255 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3256 | if (rc) { | |
3257 | cFYI(1, ("Send error in QPathInfo = %d", rc)); | |
3258 | } else { /* decode response */ | |
3259 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3260 | ||
acf1a1b1 SF |
3261 | if (rc) /* BB add auto retry on EOPNOTSUPP? */ |
3262 | rc = -EIO; | |
50c2f753 | 3263 | else if (!legacy && (pSMBr->ByteCount < 40)) |
1da177e4 | 3264 | rc = -EIO; /* bad smb */ |
790fe579 | 3265 | else if (legacy && (pSMBr->ByteCount < 24)) |
50c2f753 SF |
3266 | rc = -EIO; /* 24 or 26 expected but we do not read |
3267 | last field */ | |
3268 | else if (pFindData) { | |
acf1a1b1 | 3269 | int size; |
1da177e4 | 3270 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
790fe579 SF |
3271 | if (legacy) /* we do not read the last field, EAsize, |
3272 | fortunately since it varies by subdialect | |
3273 | and on Set vs. Get, is two bytes or 4 | |
3274 | bytes depending but we don't care here */ | |
acf1a1b1 SF |
3275 | size = sizeof(FILE_INFO_STANDARD); |
3276 | else | |
3277 | size = sizeof(FILE_ALL_INFO); | |
1da177e4 LT |
3278 | memcpy((char *) pFindData, |
3279 | (char *) &pSMBr->hdr.Protocol + | |
acf1a1b1 | 3280 | data_offset, size); |
1da177e4 LT |
3281 | } else |
3282 | rc = -ENOMEM; | |
3283 | } | |
3284 | cifs_buf_release(pSMB); | |
3285 | if (rc == -EAGAIN) | |
3286 | goto QPathInfoRetry; | |
3287 | ||
3288 | return rc; | |
3289 | } | |
3290 | ||
3291 | int | |
3292 | CIFSSMBUnixQPathInfo(const int xid, struct cifsTconInfo *tcon, | |
3293 | const unsigned char *searchName, | |
3294 | FILE_UNIX_BASIC_INFO * pFindData, | |
737b758c | 3295 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
3296 | { |
3297 | /* SMB_QUERY_FILE_UNIX_BASIC */ | |
3298 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
3299 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
3300 | int rc = 0; | |
3301 | int bytes_returned = 0; | |
3302 | int name_len; | |
3303 | __u16 params, byte_count; | |
3304 | ||
3305 | cFYI(1, ("In QPathInfo (Unix) the path %s", searchName)); | |
3306 | UnixQPathInfoRetry: | |
3307 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3308 | (void **) &pSMBr); | |
3309 | if (rc) | |
3310 | return rc; | |
3311 | ||
3312 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3313 | name_len = | |
b1a45695 | 3314 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 3315 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
3316 | name_len++; /* trailing null */ |
3317 | name_len *= 2; | |
50c2f753 | 3318 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
3319 | name_len = strnlen(searchName, PATH_MAX); |
3320 | name_len++; /* trailing null */ | |
3321 | strncpy(pSMB->FileName, searchName, name_len); | |
3322 | } | |
3323 | ||
50c2f753 | 3324 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */; |
1da177e4 LT |
3325 | pSMB->TotalDataCount = 0; |
3326 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3327 | /* BB find exact max SMB PDU from sess structure BB */ | |
50c2f753 | 3328 | pSMB->MaxDataCount = cpu_to_le16(4000); |
1da177e4 LT |
3329 | pSMB->MaxSetupCount = 0; |
3330 | pSMB->Reserved = 0; | |
3331 | pSMB->Flags = 0; | |
3332 | pSMB->Timeout = 0; | |
3333 | pSMB->Reserved2 = 0; | |
3334 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 3335 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
1da177e4 LT |
3336 | pSMB->DataCount = 0; |
3337 | pSMB->DataOffset = 0; | |
3338 | pSMB->SetupCount = 1; | |
3339 | pSMB->Reserved3 = 0; | |
3340 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
3341 | byte_count = params + 1 /* pad */ ; | |
3342 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3343 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3344 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_UNIX_BASIC); | |
3345 | pSMB->Reserved4 = 0; | |
3346 | pSMB->hdr.smb_buf_length += byte_count; | |
3347 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3348 | ||
3349 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3350 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3351 | if (rc) { | |
3352 | cFYI(1, ("Send error in QPathInfo = %d", rc)); | |
3353 | } else { /* decode response */ | |
3354 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3355 | ||
3356 | if (rc || (pSMBr->ByteCount < sizeof(FILE_UNIX_BASIC_INFO))) { | |
3357 | rc = -EIO; /* bad smb */ | |
3358 | } else { | |
3359 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
3360 | memcpy((char *) pFindData, | |
3361 | (char *) &pSMBr->hdr.Protocol + | |
3362 | data_offset, | |
3363 | sizeof (FILE_UNIX_BASIC_INFO)); | |
3364 | } | |
3365 | } | |
3366 | cifs_buf_release(pSMB); | |
3367 | if (rc == -EAGAIN) | |
3368 | goto UnixQPathInfoRetry; | |
3369 | ||
3370 | return rc; | |
3371 | } | |
3372 | ||
3373 | #if 0 /* function unused at present */ | |
3374 | int CIFSFindSingle(const int xid, struct cifsTconInfo *tcon, | |
3375 | const char *searchName, FILE_ALL_INFO * findData, | |
3376 | const struct nls_table *nls_codepage) | |
3377 | { | |
3378 | /* level 257 SMB_ */ | |
3379 | TRANSACTION2_FFIRST_REQ *pSMB = NULL; | |
3380 | TRANSACTION2_FFIRST_RSP *pSMBr = NULL; | |
3381 | int rc = 0; | |
3382 | int bytes_returned; | |
3383 | int name_len; | |
3384 | __u16 params, byte_count; | |
3385 | ||
3386 | cFYI(1, ("In FindUnique")); | |
3387 | findUniqueRetry: | |
3388 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3389 | (void **) &pSMBr); | |
3390 | if (rc) | |
3391 | return rc; | |
3392 | ||
3393 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3394 | name_len = | |
50c2f753 SF |
3395 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
3396 | PATH_MAX, nls_codepage); | |
1da177e4 LT |
3397 | name_len++; /* trailing null */ |
3398 | name_len *= 2; | |
50c2f753 | 3399 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
3400 | name_len = strnlen(searchName, PATH_MAX); |
3401 | name_len++; /* trailing null */ | |
3402 | strncpy(pSMB->FileName, searchName, name_len); | |
3403 | } | |
3404 | ||
3405 | params = 12 + name_len /* includes null */ ; | |
3406 | pSMB->TotalDataCount = 0; /* no EAs */ | |
3407 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3408 | pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ | |
3409 | pSMB->MaxSetupCount = 0; | |
3410 | pSMB->Reserved = 0; | |
3411 | pSMB->Flags = 0; | |
3412 | pSMB->Timeout = 0; | |
3413 | pSMB->Reserved2 = 0; | |
3414 | pSMB->ParameterOffset = cpu_to_le16( | |
50c2f753 | 3415 | offsetof(struct smb_com_transaction2_ffirst_req, InformationLevel)-4); |
1da177e4 LT |
3416 | pSMB->DataCount = 0; |
3417 | pSMB->DataOffset = 0; | |
3418 | pSMB->SetupCount = 1; /* one byte, no need to le convert */ | |
3419 | pSMB->Reserved3 = 0; | |
3420 | pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_FIRST); | |
3421 | byte_count = params + 1 /* pad */ ; | |
3422 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3423 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3424 | pSMB->SearchAttributes = | |
3425 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | | |
3426 | ATTR_DIRECTORY); | |
3427 | pSMB->SearchCount = cpu_to_le16(16); /* BB increase */ | |
3428 | pSMB->SearchFlags = cpu_to_le16(1); | |
3429 | pSMB->InformationLevel = cpu_to_le16(SMB_FIND_FILE_DIRECTORY_INFO); | |
3430 | pSMB->SearchStorageType = 0; /* BB what should we set this to? BB */ | |
3431 | pSMB->hdr.smb_buf_length += byte_count; | |
3432 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3433 | ||
3434 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3435 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3436 | ||
3437 | if (rc) { | |
3438 | cFYI(1, ("Send error in FindFileDirInfo = %d", rc)); | |
3439 | } else { /* decode response */ | |
a4544347 | 3440 | cifs_stats_inc(&tcon->num_ffirst); |
1da177e4 LT |
3441 | /* BB fill in */ |
3442 | } | |
3443 | ||
3444 | cifs_buf_release(pSMB); | |
3445 | if (rc == -EAGAIN) | |
3446 | goto findUniqueRetry; | |
3447 | ||
3448 | return rc; | |
3449 | } | |
3450 | #endif /* end unused (temporarily) function */ | |
3451 | ||
3452 | /* xid, tcon, searchName and codepage are input parms, rest are returned */ | |
3453 | int | |
3454 | CIFSFindFirst(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 | 3455 | const char *searchName, |
1da177e4 | 3456 | const struct nls_table *nls_codepage, |
50c2f753 SF |
3457 | __u16 *pnetfid, |
3458 | struct cifs_search_info *psrch_inf, int remap, const char dirsep) | |
1da177e4 LT |
3459 | { |
3460 | /* level 257 SMB_ */ | |
3461 | TRANSACTION2_FFIRST_REQ *pSMB = NULL; | |
3462 | TRANSACTION2_FFIRST_RSP *pSMBr = NULL; | |
3463 | T2_FFIRST_RSP_PARMS * parms; | |
3464 | int rc = 0; | |
3465 | int bytes_returned = 0; | |
3466 | int name_len; | |
3467 | __u16 params, byte_count; | |
3468 | ||
50c2f753 | 3469 | cFYI(1, ("In FindFirst for %s", searchName)); |
1da177e4 LT |
3470 | |
3471 | findFirstRetry: | |
3472 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3473 | (void **) &pSMBr); | |
3474 | if (rc) | |
3475 | return rc; | |
3476 | ||
3477 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3478 | name_len = | |
50c2f753 | 3479 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c SF |
3480 | PATH_MAX, nls_codepage, remap); |
3481 | /* We can not add the asterik earlier in case | |
3482 | it got remapped to 0xF03A as if it were part of the | |
3483 | directory name instead of a wildcard */ | |
1da177e4 | 3484 | name_len *= 2; |
ac67055e | 3485 | pSMB->FileName[name_len] = dirsep; |
737b758c SF |
3486 | pSMB->FileName[name_len+1] = 0; |
3487 | pSMB->FileName[name_len+2] = '*'; | |
3488 | pSMB->FileName[name_len+3] = 0; | |
3489 | name_len += 4; /* now the trailing null */ | |
1da177e4 LT |
3490 | pSMB->FileName[name_len] = 0; /* null terminate just in case */ |
3491 | pSMB->FileName[name_len+1] = 0; | |
737b758c | 3492 | name_len += 2; |
1da177e4 LT |
3493 | } else { /* BB add check for overrun of SMB buf BB */ |
3494 | name_len = strnlen(searchName, PATH_MAX); | |
1da177e4 | 3495 | /* BB fix here and in unicode clause above ie |
790fe579 | 3496 | if (name_len > buffersize-header) |
1da177e4 LT |
3497 | free buffer exit; BB */ |
3498 | strncpy(pSMB->FileName, searchName, name_len); | |
ac67055e | 3499 | pSMB->FileName[name_len] = dirsep; |
68575476 SF |
3500 | pSMB->FileName[name_len+1] = '*'; |
3501 | pSMB->FileName[name_len+2] = 0; | |
3502 | name_len += 3; | |
1da177e4 LT |
3503 | } |
3504 | ||
3505 | params = 12 + name_len /* includes null */ ; | |
3506 | pSMB->TotalDataCount = 0; /* no EAs */ | |
3507 | pSMB->MaxParameterCount = cpu_to_le16(10); | |
3508 | pSMB->MaxDataCount = cpu_to_le16((tcon->ses->server->maxBuf - | |
3509 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
3510 | pSMB->MaxSetupCount = 0; | |
3511 | pSMB->Reserved = 0; | |
3512 | pSMB->Flags = 0; | |
3513 | pSMB->Timeout = 0; | |
3514 | pSMB->Reserved2 = 0; | |
3515 | byte_count = params + 1 /* pad */ ; | |
3516 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3517 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3518 | pSMB->ParameterOffset = cpu_to_le16( | |
88274815 SF |
3519 | offsetof(struct smb_com_transaction2_ffirst_req, SearchAttributes) |
3520 | - 4); | |
1da177e4 LT |
3521 | pSMB->DataCount = 0; |
3522 | pSMB->DataOffset = 0; | |
3523 | pSMB->SetupCount = 1; /* one byte, no need to make endian neutral */ | |
3524 | pSMB->Reserved3 = 0; | |
3525 | pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_FIRST); | |
3526 | pSMB->SearchAttributes = | |
3527 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | | |
3528 | ATTR_DIRECTORY); | |
50c2f753 SF |
3529 | pSMB->SearchCount = cpu_to_le16(CIFSMaxBufSize/sizeof(FILE_UNIX_INFO)); |
3530 | pSMB->SearchFlags = cpu_to_le16(CIFS_SEARCH_CLOSE_AT_END | | |
1da177e4 LT |
3531 | CIFS_SEARCH_RETURN_RESUME); |
3532 | pSMB->InformationLevel = cpu_to_le16(psrch_inf->info_level); | |
3533 | ||
3534 | /* BB what should we set StorageType to? Does it matter? BB */ | |
3535 | pSMB->SearchStorageType = 0; | |
3536 | pSMB->hdr.smb_buf_length += byte_count; | |
3537 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3538 | ||
3539 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3540 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 3541 | cifs_stats_inc(&tcon->num_ffirst); |
1da177e4 | 3542 | |
88274815 SF |
3543 | if (rc) {/* BB add logic to retry regular search if Unix search |
3544 | rejected unexpectedly by server */ | |
1da177e4 LT |
3545 | /* BB Add code to handle unsupported level rc */ |
3546 | cFYI(1, ("Error in FindFirst = %d", rc)); | |
1982c344 | 3547 | |
88274815 | 3548 | cifs_buf_release(pSMB); |
1da177e4 LT |
3549 | |
3550 | /* BB eventually could optimize out free and realloc of buf */ | |
3551 | /* for this case */ | |
3552 | if (rc == -EAGAIN) | |
3553 | goto findFirstRetry; | |
3554 | } else { /* decode response */ | |
3555 | /* BB remember to free buffer if error BB */ | |
3556 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
790fe579 | 3557 | if (rc == 0) { |
1da177e4 LT |
3558 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) |
3559 | psrch_inf->unicode = TRUE; | |
3560 | else | |
3561 | psrch_inf->unicode = FALSE; | |
3562 | ||
3563 | psrch_inf->ntwrk_buf_start = (char *)pSMBr; | |
d47d7c1a | 3564 | psrch_inf->smallBuf = 0; |
50c2f753 SF |
3565 | psrch_inf->srch_entries_start = |
3566 | (char *) &pSMBr->hdr.Protocol + | |
1da177e4 | 3567 | le16_to_cpu(pSMBr->t2.DataOffset); |
1da177e4 LT |
3568 | parms = (T2_FFIRST_RSP_PARMS *)((char *) &pSMBr->hdr.Protocol + |
3569 | le16_to_cpu(pSMBr->t2.ParameterOffset)); | |
3570 | ||
790fe579 | 3571 | if (parms->EndofSearch) |
1da177e4 LT |
3572 | psrch_inf->endOfSearch = TRUE; |
3573 | else | |
3574 | psrch_inf->endOfSearch = FALSE; | |
3575 | ||
50c2f753 SF |
3576 | psrch_inf->entries_in_buffer = |
3577 | le16_to_cpu(parms->SearchCount); | |
60808233 | 3578 | psrch_inf->index_of_last_entry = 2 /* skip . and .. */ + |
1da177e4 | 3579 | psrch_inf->entries_in_buffer; |
1da177e4 LT |
3580 | *pnetfid = parms->SearchHandle; |
3581 | } else { | |
3582 | cifs_buf_release(pSMB); | |
3583 | } | |
3584 | } | |
3585 | ||
3586 | return rc; | |
3587 | } | |
3588 | ||
3589 | int CIFSFindNext(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 | 3590 | __u16 searchHandle, struct cifs_search_info *psrch_inf) |
1da177e4 LT |
3591 | { |
3592 | TRANSACTION2_FNEXT_REQ *pSMB = NULL; | |
3593 | TRANSACTION2_FNEXT_RSP *pSMBr = NULL; | |
3594 | T2_FNEXT_RSP_PARMS * parms; | |
3595 | char *response_data; | |
3596 | int rc = 0; | |
3597 | int bytes_returned, name_len; | |
3598 | __u16 params, byte_count; | |
3599 | ||
3600 | cFYI(1, ("In FindNext")); | |
3601 | ||
790fe579 | 3602 | if (psrch_inf->endOfSearch == TRUE) |
1da177e4 LT |
3603 | return -ENOENT; |
3604 | ||
3605 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3606 | (void **) &pSMBr); | |
3607 | if (rc) | |
3608 | return rc; | |
3609 | ||
50c2f753 | 3610 | params = 14; /* includes 2 bytes of null string, converted to LE below*/ |
1da177e4 LT |
3611 | byte_count = 0; |
3612 | pSMB->TotalDataCount = 0; /* no EAs */ | |
3613 | pSMB->MaxParameterCount = cpu_to_le16(8); | |
3614 | pSMB->MaxDataCount = | |
50c2f753 SF |
3615 | cpu_to_le16((tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) & |
3616 | 0xFFFFFF00); | |
1da177e4 LT |
3617 | pSMB->MaxSetupCount = 0; |
3618 | pSMB->Reserved = 0; | |
3619 | pSMB->Flags = 0; | |
3620 | pSMB->Timeout = 0; | |
3621 | pSMB->Reserved2 = 0; | |
3622 | pSMB->ParameterOffset = cpu_to_le16( | |
3623 | offsetof(struct smb_com_transaction2_fnext_req,SearchHandle) - 4); | |
3624 | pSMB->DataCount = 0; | |
3625 | pSMB->DataOffset = 0; | |
3626 | pSMB->SetupCount = 1; | |
3627 | pSMB->Reserved3 = 0; | |
3628 | pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_NEXT); | |
3629 | pSMB->SearchHandle = searchHandle; /* always kept as le */ | |
3630 | pSMB->SearchCount = | |
3631 | cpu_to_le16(CIFSMaxBufSize / sizeof (FILE_UNIX_INFO)); | |
3632 | /* test for Unix extensions */ | |
3633 | /* if (tcon->ses->capabilities & CAP_UNIX) { | |
3634 | pSMB->InformationLevel = cpu_to_le16(SMB_FIND_FILE_UNIX); | |
3635 | psrch_inf->info_level = SMB_FIND_FILE_UNIX; | |
3636 | } else { | |
3637 | pSMB->InformationLevel = | |
3638 | cpu_to_le16(SMB_FIND_FILE_DIRECTORY_INFO); | |
3639 | psrch_inf->info_level = SMB_FIND_FILE_DIRECTORY_INFO; | |
3640 | } */ | |
3641 | pSMB->InformationLevel = cpu_to_le16(psrch_inf->info_level); | |
3642 | pSMB->ResumeKey = psrch_inf->resume_key; | |
3643 | pSMB->SearchFlags = | |
3644 | cpu_to_le16(CIFS_SEARCH_CLOSE_AT_END | CIFS_SEARCH_RETURN_RESUME); | |
3645 | ||
3646 | name_len = psrch_inf->resume_name_len; | |
3647 | params += name_len; | |
790fe579 | 3648 | if (name_len < PATH_MAX) { |
1da177e4 LT |
3649 | memcpy(pSMB->ResumeFileName, psrch_inf->presume_name, name_len); |
3650 | byte_count += name_len; | |
ef6724e3 SF |
3651 | /* 14 byte parm len above enough for 2 byte null terminator */ |
3652 | pSMB->ResumeFileName[name_len] = 0; | |
3653 | pSMB->ResumeFileName[name_len+1] = 0; | |
1da177e4 LT |
3654 | } else { |
3655 | rc = -EINVAL; | |
3656 | goto FNext2_err_exit; | |
3657 | } | |
3658 | byte_count = params + 1 /* pad */ ; | |
3659 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3660 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3661 | pSMB->hdr.smb_buf_length += byte_count; | |
3662 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
50c2f753 | 3663 | |
1da177e4 LT |
3664 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
3665 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 3666 | cifs_stats_inc(&tcon->num_fnext); |
1da177e4 LT |
3667 | if (rc) { |
3668 | if (rc == -EBADF) { | |
3669 | psrch_inf->endOfSearch = TRUE; | |
50c2f753 | 3670 | rc = 0; /* search probably was closed at end of search*/ |
1da177e4 LT |
3671 | } else |
3672 | cFYI(1, ("FindNext returned = %d", rc)); | |
3673 | } else { /* decode response */ | |
3674 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
50c2f753 | 3675 | |
790fe579 | 3676 | if (rc == 0) { |
1da177e4 LT |
3677 | /* BB fixme add lock for file (srch_info) struct here */ |
3678 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) | |
3679 | psrch_inf->unicode = TRUE; | |
3680 | else | |
3681 | psrch_inf->unicode = FALSE; | |
3682 | response_data = (char *) &pSMBr->hdr.Protocol + | |
3683 | le16_to_cpu(pSMBr->t2.ParameterOffset); | |
3684 | parms = (T2_FNEXT_RSP_PARMS *)response_data; | |
3685 | response_data = (char *)&pSMBr->hdr.Protocol + | |
3686 | le16_to_cpu(pSMBr->t2.DataOffset); | |
790fe579 | 3687 | if (psrch_inf->smallBuf) |
d47d7c1a SF |
3688 | cifs_small_buf_release( |
3689 | psrch_inf->ntwrk_buf_start); | |
3690 | else | |
3691 | cifs_buf_release(psrch_inf->ntwrk_buf_start); | |
1da177e4 LT |
3692 | psrch_inf->srch_entries_start = response_data; |
3693 | psrch_inf->ntwrk_buf_start = (char *)pSMB; | |
d47d7c1a | 3694 | psrch_inf->smallBuf = 0; |
790fe579 | 3695 | if (parms->EndofSearch) |
1da177e4 LT |
3696 | psrch_inf->endOfSearch = TRUE; |
3697 | else | |
3698 | psrch_inf->endOfSearch = FALSE; | |
50c2f753 SF |
3699 | psrch_inf->entries_in_buffer = |
3700 | le16_to_cpu(parms->SearchCount); | |
1da177e4 LT |
3701 | psrch_inf->index_of_last_entry += |
3702 | psrch_inf->entries_in_buffer; | |
50c2f753 SF |
3703 | /* cFYI(1,("fnxt2 entries in buf %d index_of_last %d", |
3704 | psrch_inf->entries_in_buffer, psrch_inf->index_of_last_entry)); */ | |
1da177e4 LT |
3705 | |
3706 | /* BB fixme add unlock here */ | |
3707 | } | |
3708 | ||
3709 | } | |
3710 | ||
3711 | /* BB On error, should we leave previous search buf (and count and | |
3712 | last entry fields) intact or free the previous one? */ | |
3713 | ||
3714 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
3715 | since file handle passed in no longer valid */ | |
3716 | FNext2_err_exit: | |
3717 | if (rc != 0) | |
3718 | cifs_buf_release(pSMB); | |
1da177e4 LT |
3719 | return rc; |
3720 | } | |
3721 | ||
3722 | int | |
50c2f753 SF |
3723 | CIFSFindClose(const int xid, struct cifsTconInfo *tcon, |
3724 | const __u16 searchHandle) | |
1da177e4 LT |
3725 | { |
3726 | int rc = 0; | |
3727 | FINDCLOSE_REQ *pSMB = NULL; | |
3728 | CLOSE_RSP *pSMBr = NULL; /* BB removeme BB */ | |
3729 | int bytes_returned; | |
3730 | ||
3731 | cFYI(1, ("In CIFSSMBFindClose")); | |
3732 | rc = small_smb_init(SMB_COM_FIND_CLOSE2, 1, tcon, (void **)&pSMB); | |
3733 | ||
3734 | /* no sense returning error if session restarted | |
3735 | as file handle has been closed */ | |
790fe579 | 3736 | if (rc == -EAGAIN) |
1da177e4 LT |
3737 | return 0; |
3738 | if (rc) | |
3739 | return rc; | |
3740 | ||
3741 | pSMBr = (CLOSE_RSP *)pSMB; /* BB removeme BB */ | |
3742 | pSMB->FileID = searchHandle; | |
3743 | pSMB->ByteCount = 0; | |
3744 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3745 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3746 | if (rc) { | |
3747 | cERROR(1, ("Send error in FindClose = %d", rc)); | |
3748 | } | |
a4544347 | 3749 | cifs_stats_inc(&tcon->num_fclose); |
1da177e4 LT |
3750 | cifs_small_buf_release(pSMB); |
3751 | ||
3752 | /* Since session is dead, search handle closed on server already */ | |
3753 | if (rc == -EAGAIN) | |
3754 | rc = 0; | |
3755 | ||
3756 | return rc; | |
3757 | } | |
3758 | ||
1da177e4 LT |
3759 | int |
3760 | CIFSGetSrvInodeNumber(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 SF |
3761 | const unsigned char *searchName, |
3762 | __u64 * inode_number, | |
3763 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
3764 | { |
3765 | int rc = 0; | |
3766 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
3767 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
3768 | int name_len, bytes_returned; | |
3769 | __u16 params, byte_count; | |
3770 | ||
50c2f753 | 3771 | cFYI(1, ("In GetSrvInodeNum for %s", searchName)); |
790fe579 | 3772 | if (tcon == NULL) |
50c2f753 | 3773 | return -ENODEV; |
1da177e4 LT |
3774 | |
3775 | GetInodeNumberRetry: | |
3776 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
50c2f753 | 3777 | (void **) &pSMBr); |
1da177e4 LT |
3778 | if (rc) |
3779 | return rc; | |
3780 | ||
1da177e4 LT |
3781 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
3782 | name_len = | |
b1a45695 | 3783 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
50c2f753 | 3784 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
3785 | name_len++; /* trailing null */ |
3786 | name_len *= 2; | |
50c2f753 | 3787 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
3788 | name_len = strnlen(searchName, PATH_MAX); |
3789 | name_len++; /* trailing null */ | |
3790 | strncpy(pSMB->FileName, searchName, name_len); | |
3791 | } | |
3792 | ||
3793 | params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ; | |
3794 | pSMB->TotalDataCount = 0; | |
3795 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3796 | /* BB find exact max data count below from sess structure BB */ | |
3797 | pSMB->MaxDataCount = cpu_to_le16(4000); | |
3798 | pSMB->MaxSetupCount = 0; | |
3799 | pSMB->Reserved = 0; | |
3800 | pSMB->Flags = 0; | |
3801 | pSMB->Timeout = 0; | |
3802 | pSMB->Reserved2 = 0; | |
3803 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 3804 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
1da177e4 LT |
3805 | pSMB->DataCount = 0; |
3806 | pSMB->DataOffset = 0; | |
3807 | pSMB->SetupCount = 1; | |
3808 | pSMB->Reserved3 = 0; | |
3809 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
3810 | byte_count = params + 1 /* pad */ ; | |
3811 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3812 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3813 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_INTERNAL_INFO); | |
3814 | pSMB->Reserved4 = 0; | |
3815 | pSMB->hdr.smb_buf_length += byte_count; | |
3816 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3817 | ||
3818 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3819 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3820 | if (rc) { | |
3821 | cFYI(1, ("error %d in QueryInternalInfo", rc)); | |
3822 | } else { | |
3823 | /* decode response */ | |
3824 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3825 | if (rc || (pSMBr->ByteCount < 2)) | |
3826 | /* BB also check enough total bytes returned */ | |
3827 | /* If rc should we check for EOPNOSUPP and | |
3828 | disable the srvino flag? or in caller? */ | |
3829 | rc = -EIO; /* bad smb */ | |
50c2f753 | 3830 | else { |
1da177e4 LT |
3831 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
3832 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); | |
50c2f753 | 3833 | struct file_internal_info *pfinfo; |
1da177e4 | 3834 | /* BB Do we need a cast or hash here ? */ |
790fe579 | 3835 | if (count < 8) { |
1da177e4 LT |
3836 | cFYI(1, ("Illegal size ret in QryIntrnlInf")); |
3837 | rc = -EIO; | |
3838 | goto GetInodeNumOut; | |
3839 | } | |
3840 | pfinfo = (struct file_internal_info *) | |
3841 | (data_offset + (char *) &pSMBr->hdr.Protocol); | |
3842 | *inode_number = pfinfo->UniqueId; | |
3843 | } | |
3844 | } | |
3845 | GetInodeNumOut: | |
3846 | cifs_buf_release(pSMB); | |
3847 | if (rc == -EAGAIN) | |
3848 | goto GetInodeNumberRetry; | |
3849 | return rc; | |
3850 | } | |
1da177e4 LT |
3851 | |
3852 | int | |
3853 | CIFSGetDFSRefer(const int xid, struct cifsSesInfo *ses, | |
3854 | const unsigned char *searchName, | |
3855 | unsigned char **targetUNCs, | |
3856 | unsigned int *number_of_UNC_in_array, | |
737b758c | 3857 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
3858 | { |
3859 | /* TRANS2_GET_DFS_REFERRAL */ | |
3860 | TRANSACTION2_GET_DFS_REFER_REQ *pSMB = NULL; | |
3861 | TRANSACTION2_GET_DFS_REFER_RSP *pSMBr = NULL; | |
50c2f753 | 3862 | struct dfs_referral_level_3 *referrals = NULL; |
1da177e4 LT |
3863 | int rc = 0; |
3864 | int bytes_returned; | |
3865 | int name_len; | |
3866 | unsigned int i; | |
50c2f753 | 3867 | char *temp; |
1da177e4 LT |
3868 | __u16 params, byte_count; |
3869 | *number_of_UNC_in_array = 0; | |
3870 | *targetUNCs = NULL; | |
3871 | ||
3872 | cFYI(1, ("In GetDFSRefer the path %s", searchName)); | |
3873 | if (ses == NULL) | |
3874 | return -ENODEV; | |
3875 | getDFSRetry: | |
3876 | rc = smb_init(SMB_COM_TRANSACTION2, 15, NULL, (void **) &pSMB, | |
3877 | (void **) &pSMBr); | |
3878 | if (rc) | |
3879 | return rc; | |
50c2f753 SF |
3880 | |
3881 | /* server pointer checked in called function, | |
1982c344 SF |
3882 | but should never be null here anyway */ |
3883 | pSMB->hdr.Mid = GetNextMid(ses->server); | |
1da177e4 LT |
3884 | pSMB->hdr.Tid = ses->ipc_tid; |
3885 | pSMB->hdr.Uid = ses->Suid; | |
3886 | if (ses->capabilities & CAP_STATUS32) { | |
3887 | pSMB->hdr.Flags2 |= SMBFLG2_ERR_STATUS; | |
3888 | } | |
3889 | if (ses->capabilities & CAP_DFS) { | |
3890 | pSMB->hdr.Flags2 |= SMBFLG2_DFS; | |
3891 | } | |
3892 | ||
3893 | if (ses->capabilities & CAP_UNICODE) { | |
3894 | pSMB->hdr.Flags2 |= SMBFLG2_UNICODE; | |
3895 | name_len = | |
b1a45695 | 3896 | cifsConvertToUCS((__le16 *) pSMB->RequestFileName, |
737b758c | 3897 | searchName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
3898 | name_len++; /* trailing null */ |
3899 | name_len *= 2; | |
50c2f753 | 3900 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
3901 | name_len = strnlen(searchName, PATH_MAX); |
3902 | name_len++; /* trailing null */ | |
3903 | strncpy(pSMB->RequestFileName, searchName, name_len); | |
3904 | } | |
3905 | ||
790fe579 SF |
3906 | if (ses->server) { |
3907 | if (ses->server->secMode & | |
1a4e15a0 SF |
3908 | (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) |
3909 | pSMB->hdr.Flags2 |= SMBFLG2_SECURITY_SIGNATURE; | |
3910 | } | |
3911 | ||
50c2f753 | 3912 | pSMB->hdr.Uid = ses->Suid; |
1a4e15a0 | 3913 | |
1da177e4 LT |
3914 | params = 2 /* level */ + name_len /*includes null */ ; |
3915 | pSMB->TotalDataCount = 0; | |
3916 | pSMB->DataCount = 0; | |
3917 | pSMB->DataOffset = 0; | |
3918 | pSMB->MaxParameterCount = 0; | |
3919 | pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ | |
3920 | pSMB->MaxSetupCount = 0; | |
3921 | pSMB->Reserved = 0; | |
3922 | pSMB->Flags = 0; | |
3923 | pSMB->Timeout = 0; | |
3924 | pSMB->Reserved2 = 0; | |
3925 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 3926 | struct smb_com_transaction2_get_dfs_refer_req, MaxReferralLevel) - 4); |
1da177e4 LT |
3927 | pSMB->SetupCount = 1; |
3928 | pSMB->Reserved3 = 0; | |
3929 | pSMB->SubCommand = cpu_to_le16(TRANS2_GET_DFS_REFERRAL); | |
3930 | byte_count = params + 3 /* pad */ ; | |
3931 | pSMB->ParameterCount = cpu_to_le16(params); | |
3932 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
3933 | pSMB->MaxReferralLevel = cpu_to_le16(3); | |
3934 | pSMB->hdr.smb_buf_length += byte_count; | |
3935 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3936 | ||
3937 | rc = SendReceive(xid, ses, (struct smb_hdr *) pSMB, | |
3938 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3939 | if (rc) { | |
3940 | cFYI(1, ("Send error in GetDFSRefer = %d", rc)); | |
3941 | } else { /* decode response */ | |
3942 | /* BB Add logic to parse referrals here */ | |
3943 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3944 | ||
50c2f753 SF |
3945 | /* BB Also check if enough total bytes returned? */ |
3946 | if (rc || (pSMBr->ByteCount < 17)) | |
1da177e4 LT |
3947 | rc = -EIO; /* bad smb */ |
3948 | else { | |
50c2f753 | 3949 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
1da177e4 LT |
3950 | __u16 data_count = le16_to_cpu(pSMBr->t2.DataCount); |
3951 | ||
3952 | cFYI(1, | |
50c2f753 | 3953 | ("Decoding GetDFSRefer response BCC: %d Offset %d", |
1da177e4 | 3954 | pSMBr->ByteCount, data_offset)); |
50c2f753 SF |
3955 | referrals = |
3956 | (struct dfs_referral_level_3 *) | |
1da177e4 LT |
3957 | (8 /* sizeof start of data block */ + |
3958 | data_offset + | |
50c2f753 | 3959 | (char *) &pSMBr->hdr.Protocol); |
1da177e4 | 3960 | cFYI(1,("num_referrals: %d dfs flags: 0x%x ... \nfor referral one refer size: 0x%x srv type: 0x%x refer flags: 0x%x ttl: 0x%x", |
50c2f753 SF |
3961 | le16_to_cpu(pSMBr->NumberOfReferrals), |
3962 | le16_to_cpu(pSMBr->DFSFlags), | |
3963 | le16_to_cpu(referrals->ReferralSize), | |
3964 | le16_to_cpu(referrals->ServerType), | |
3965 | le16_to_cpu(referrals->ReferralFlags), | |
3966 | le16_to_cpu(referrals->TimeToLive))); | |
1da177e4 LT |
3967 | /* BB This field is actually two bytes in from start of |
3968 | data block so we could do safety check that DataBlock | |
3969 | begins at address of pSMBr->NumberOfReferrals */ | |
50c2f753 SF |
3970 | *number_of_UNC_in_array = |
3971 | le16_to_cpu(pSMBr->NumberOfReferrals); | |
1da177e4 LT |
3972 | |
3973 | /* BB Fix below so can return more than one referral */ | |
790fe579 | 3974 | if (*number_of_UNC_in_array > 1) |
1da177e4 LT |
3975 | *number_of_UNC_in_array = 1; |
3976 | ||
3977 | /* get the length of the strings describing refs */ | |
3978 | name_len = 0; | |
50c2f753 | 3979 | for (i = 0; i < *number_of_UNC_in_array; i++) { |
1da177e4 | 3980 | /* make sure that DfsPathOffset not past end */ |
50c2f753 SF |
3981 | __u16 offset = |
3982 | le16_to_cpu(referrals->DfsPathOffset); | |
1da177e4 | 3983 | if (offset > data_count) { |
50c2f753 | 3984 | /* if invalid referral, stop here and do |
1da177e4 LT |
3985 | not try to copy any more */ |
3986 | *number_of_UNC_in_array = i; | |
3987 | break; | |
50c2f753 | 3988 | } |
1da177e4 LT |
3989 | temp = ((char *)referrals) + offset; |
3990 | ||
3991 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { | |
50c2f753 SF |
3992 | name_len += UniStrnlen((wchar_t *)temp, |
3993 | data_count); | |
1da177e4 | 3994 | } else { |
50c2f753 | 3995 | name_len += strnlen(temp, data_count); |
1da177e4 LT |
3996 | } |
3997 | referrals++; | |
50c2f753 SF |
3998 | /* BB add check that referral pointer does |
3999 | not fall off end PDU */ | |
1da177e4 LT |
4000 | } |
4001 | /* BB add check for name_len bigger than bcc */ | |
50c2f753 SF |
4002 | *targetUNCs = |
4003 | kmalloc(name_len+1+(*number_of_UNC_in_array), | |
4004 | GFP_KERNEL); | |
790fe579 | 4005 | if (*targetUNCs == NULL) { |
1da177e4 LT |
4006 | rc = -ENOMEM; |
4007 | goto GetDFSRefExit; | |
4008 | } | |
4009 | /* copy the ref strings */ | |
50c2f753 SF |
4010 | referrals = (struct dfs_referral_level_3 *) |
4011 | (8 /* sizeof data hdr */ + data_offset + | |
1da177e4 LT |
4012 | (char *) &pSMBr->hdr.Protocol); |
4013 | ||
50c2f753 SF |
4014 | for (i = 0; i < *number_of_UNC_in_array; i++) { |
4015 | temp = ((char *)referrals) + | |
4016 | le16_to_cpu(referrals->DfsPathOffset); | |
1da177e4 LT |
4017 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { |
4018 | cifs_strfromUCS_le(*targetUNCs, | |
50c2f753 SF |
4019 | (__le16 *) temp, |
4020 | name_len, | |
4021 | nls_codepage); | |
1da177e4 | 4022 | } else { |
50c2f753 | 4023 | strncpy(*targetUNCs, temp, name_len); |
1da177e4 LT |
4024 | } |
4025 | /* BB update target_uncs pointers */ | |
4026 | referrals++; | |
4027 | } | |
4028 | temp = *targetUNCs; | |
4029 | temp[name_len] = 0; | |
4030 | } | |
4031 | ||
4032 | } | |
4033 | GetDFSRefExit: | |
4034 | if (pSMB) | |
4035 | cifs_buf_release(pSMB); | |
4036 | ||
4037 | if (rc == -EAGAIN) | |
4038 | goto getDFSRetry; | |
4039 | ||
4040 | return rc; | |
4041 | } | |
4042 | ||
20962438 SF |
4043 | /* Query File System Info such as free space to old servers such as Win 9x */ |
4044 | int | |
4045 | SMBOldQFSInfo(const int xid, struct cifsTconInfo *tcon, struct kstatfs *FSData) | |
4046 | { | |
4047 | /* level 0x01 SMB_QUERY_FILE_SYSTEM_INFO */ | |
4048 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4049 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4050 | FILE_SYSTEM_ALLOC_INFO *response_data; | |
4051 | int rc = 0; | |
4052 | int bytes_returned = 0; | |
4053 | __u16 params, byte_count; | |
4054 | ||
4055 | cFYI(1, ("OldQFSInfo")); | |
4056 | oldQFSInfoRetry: | |
4057 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4058 | (void **) &pSMBr); | |
4059 | if (rc) | |
4060 | return rc; | |
4061 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4062 | (void **) &pSMBr); | |
4063 | if (rc) | |
4064 | return rc; | |
4065 | ||
4066 | params = 2; /* level */ | |
4067 | pSMB->TotalDataCount = 0; | |
4068 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4069 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
4070 | pSMB->MaxSetupCount = 0; | |
4071 | pSMB->Reserved = 0; | |
4072 | pSMB->Flags = 0; | |
4073 | pSMB->Timeout = 0; | |
4074 | pSMB->Reserved2 = 0; | |
4075 | byte_count = params + 1 /* pad */ ; | |
4076 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
4077 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
4078 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
4079 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
4080 | pSMB->DataCount = 0; | |
4081 | pSMB->DataOffset = 0; | |
4082 | pSMB->SetupCount = 1; | |
4083 | pSMB->Reserved3 = 0; | |
4084 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4085 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_ALLOCATION); | |
4086 | pSMB->hdr.smb_buf_length += byte_count; | |
4087 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4088 | ||
4089 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4090 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4091 | if (rc) { | |
4092 | cFYI(1, ("Send error in QFSInfo = %d", rc)); | |
4093 | } else { /* decode response */ | |
4094 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4095 | ||
4096 | if (rc || (pSMBr->ByteCount < 18)) | |
4097 | rc = -EIO; /* bad smb */ | |
4098 | else { | |
4099 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
50c2f753 | 4100 | cFYI(1, ("qfsinf resp BCC: %d Offset %d", |
20962438 SF |
4101 | pSMBr->ByteCount, data_offset)); |
4102 | ||
50c2f753 | 4103 | response_data = (FILE_SYSTEM_ALLOC_INFO *) |
20962438 SF |
4104 | (((char *) &pSMBr->hdr.Protocol) + data_offset); |
4105 | FSData->f_bsize = | |
4106 | le16_to_cpu(response_data->BytesPerSector) * | |
4107 | le32_to_cpu(response_data-> | |
4108 | SectorsPerAllocationUnit); | |
4109 | FSData->f_blocks = | |
50c2f753 | 4110 | le32_to_cpu(response_data->TotalAllocationUnits); |
20962438 SF |
4111 | FSData->f_bfree = FSData->f_bavail = |
4112 | le32_to_cpu(response_data->FreeAllocationUnits); | |
4113 | cFYI(1, | |
4114 | ("Blocks: %lld Free: %lld Block size %ld", | |
4115 | (unsigned long long)FSData->f_blocks, | |
4116 | (unsigned long long)FSData->f_bfree, | |
4117 | FSData->f_bsize)); | |
4118 | } | |
4119 | } | |
4120 | cifs_buf_release(pSMB); | |
4121 | ||
4122 | if (rc == -EAGAIN) | |
4123 | goto oldQFSInfoRetry; | |
4124 | ||
4125 | return rc; | |
4126 | } | |
4127 | ||
1da177e4 | 4128 | int |
737b758c | 4129 | CIFSSMBQFSInfo(const int xid, struct cifsTconInfo *tcon, struct kstatfs *FSData) |
1da177e4 LT |
4130 | { |
4131 | /* level 0x103 SMB_QUERY_FILE_SYSTEM_INFO */ | |
4132 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4133 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4134 | FILE_SYSTEM_INFO *response_data; | |
4135 | int rc = 0; | |
4136 | int bytes_returned = 0; | |
4137 | __u16 params, byte_count; | |
4138 | ||
4139 | cFYI(1, ("In QFSInfo")); | |
4140 | QFSInfoRetry: | |
4141 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4142 | (void **) &pSMBr); | |
4143 | if (rc) | |
4144 | return rc; | |
4145 | ||
4146 | params = 2; /* level */ | |
4147 | pSMB->TotalDataCount = 0; | |
4148 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
20962438 | 4149 | pSMB->MaxDataCount = cpu_to_le16(1000); |
1da177e4 LT |
4150 | pSMB->MaxSetupCount = 0; |
4151 | pSMB->Reserved = 0; | |
4152 | pSMB->Flags = 0; | |
4153 | pSMB->Timeout = 0; | |
4154 | pSMB->Reserved2 = 0; | |
4155 | byte_count = params + 1 /* pad */ ; | |
4156 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
4157 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
4158 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 4159 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); |
1da177e4 LT |
4160 | pSMB->DataCount = 0; |
4161 | pSMB->DataOffset = 0; | |
4162 | pSMB->SetupCount = 1; | |
4163 | pSMB->Reserved3 = 0; | |
4164 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4165 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_SIZE_INFO); | |
4166 | pSMB->hdr.smb_buf_length += byte_count; | |
4167 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4168 | ||
4169 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4170 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4171 | if (rc) { | |
20962438 | 4172 | cFYI(1, ("Send error in QFSInfo = %d", rc)); |
1da177e4 | 4173 | } else { /* decode response */ |
50c2f753 | 4174 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
1da177e4 | 4175 | |
20962438 | 4176 | if (rc || (pSMBr->ByteCount < 24)) |
1da177e4 LT |
4177 | rc = -EIO; /* bad smb */ |
4178 | else { | |
4179 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
1da177e4 LT |
4180 | |
4181 | response_data = | |
4182 | (FILE_SYSTEM_INFO | |
4183 | *) (((char *) &pSMBr->hdr.Protocol) + | |
4184 | data_offset); | |
4185 | FSData->f_bsize = | |
4186 | le32_to_cpu(response_data->BytesPerSector) * | |
4187 | le32_to_cpu(response_data-> | |
4188 | SectorsPerAllocationUnit); | |
4189 | FSData->f_blocks = | |
4190 | le64_to_cpu(response_data->TotalAllocationUnits); | |
4191 | FSData->f_bfree = FSData->f_bavail = | |
4192 | le64_to_cpu(response_data->FreeAllocationUnits); | |
4193 | cFYI(1, | |
4194 | ("Blocks: %lld Free: %lld Block size %ld", | |
4195 | (unsigned long long)FSData->f_blocks, | |
4196 | (unsigned long long)FSData->f_bfree, | |
4197 | FSData->f_bsize)); | |
4198 | } | |
4199 | } | |
4200 | cifs_buf_release(pSMB); | |
4201 | ||
4202 | if (rc == -EAGAIN) | |
4203 | goto QFSInfoRetry; | |
4204 | ||
4205 | return rc; | |
4206 | } | |
4207 | ||
4208 | int | |
737b758c | 4209 | CIFSSMBQFSAttributeInfo(const int xid, struct cifsTconInfo *tcon) |
1da177e4 LT |
4210 | { |
4211 | /* level 0x105 SMB_QUERY_FILE_SYSTEM_INFO */ | |
4212 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4213 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4214 | FILE_SYSTEM_ATTRIBUTE_INFO *response_data; | |
4215 | int rc = 0; | |
4216 | int bytes_returned = 0; | |
4217 | __u16 params, byte_count; | |
4218 | ||
4219 | cFYI(1, ("In QFSAttributeInfo")); | |
4220 | QFSAttributeRetry: | |
4221 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4222 | (void **) &pSMBr); | |
4223 | if (rc) | |
4224 | return rc; | |
4225 | ||
4226 | params = 2; /* level */ | |
4227 | pSMB->TotalDataCount = 0; | |
4228 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4229 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find exact max SMB PDU from sess structure BB */ | |
4230 | pSMB->MaxSetupCount = 0; | |
4231 | pSMB->Reserved = 0; | |
4232 | pSMB->Flags = 0; | |
4233 | pSMB->Timeout = 0; | |
4234 | pSMB->Reserved2 = 0; | |
4235 | byte_count = params + 1 /* pad */ ; | |
4236 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
4237 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
4238 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 4239 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); |
1da177e4 LT |
4240 | pSMB->DataCount = 0; |
4241 | pSMB->DataOffset = 0; | |
4242 | pSMB->SetupCount = 1; | |
4243 | pSMB->Reserved3 = 0; | |
4244 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4245 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_ATTRIBUTE_INFO); | |
4246 | pSMB->hdr.smb_buf_length += byte_count; | |
4247 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4248 | ||
4249 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4250 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4251 | if (rc) { | |
4252 | cERROR(1, ("Send error in QFSAttributeInfo = %d", rc)); | |
4253 | } else { /* decode response */ | |
4254 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4255 | ||
50c2f753 SF |
4256 | if (rc || (pSMBr->ByteCount < 13)) { |
4257 | /* BB also check if enough bytes returned */ | |
1da177e4 LT |
4258 | rc = -EIO; /* bad smb */ |
4259 | } else { | |
4260 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
4261 | response_data = | |
4262 | (FILE_SYSTEM_ATTRIBUTE_INFO | |
4263 | *) (((char *) &pSMBr->hdr.Protocol) + | |
4264 | data_offset); | |
4265 | memcpy(&tcon->fsAttrInfo, response_data, | |
4266 | sizeof (FILE_SYSTEM_ATTRIBUTE_INFO)); | |
4267 | } | |
4268 | } | |
4269 | cifs_buf_release(pSMB); | |
4270 | ||
4271 | if (rc == -EAGAIN) | |
4272 | goto QFSAttributeRetry; | |
4273 | ||
4274 | return rc; | |
4275 | } | |
4276 | ||
4277 | int | |
737b758c | 4278 | CIFSSMBQFSDeviceInfo(const int xid, struct cifsTconInfo *tcon) |
1da177e4 LT |
4279 | { |
4280 | /* level 0x104 SMB_QUERY_FILE_SYSTEM_INFO */ | |
4281 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4282 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4283 | FILE_SYSTEM_DEVICE_INFO *response_data; | |
4284 | int rc = 0; | |
4285 | int bytes_returned = 0; | |
4286 | __u16 params, byte_count; | |
4287 | ||
4288 | cFYI(1, ("In QFSDeviceInfo")); | |
4289 | QFSDeviceRetry: | |
4290 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4291 | (void **) &pSMBr); | |
4292 | if (rc) | |
4293 | return rc; | |
4294 | ||
4295 | params = 2; /* level */ | |
4296 | pSMB->TotalDataCount = 0; | |
4297 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4298 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find exact max SMB PDU from sess structure BB */ | |
4299 | pSMB->MaxSetupCount = 0; | |
4300 | pSMB->Reserved = 0; | |
4301 | pSMB->Flags = 0; | |
4302 | pSMB->Timeout = 0; | |
4303 | pSMB->Reserved2 = 0; | |
4304 | byte_count = params + 1 /* pad */ ; | |
4305 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
4306 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
4307 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 4308 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); |
1da177e4 LT |
4309 | |
4310 | pSMB->DataCount = 0; | |
4311 | pSMB->DataOffset = 0; | |
4312 | pSMB->SetupCount = 1; | |
4313 | pSMB->Reserved3 = 0; | |
4314 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4315 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_DEVICE_INFO); | |
4316 | pSMB->hdr.smb_buf_length += byte_count; | |
4317 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4318 | ||
4319 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4320 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4321 | if (rc) { | |
4322 | cFYI(1, ("Send error in QFSDeviceInfo = %d", rc)); | |
4323 | } else { /* decode response */ | |
4324 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4325 | ||
4326 | if (rc || (pSMBr->ByteCount < sizeof (FILE_SYSTEM_DEVICE_INFO))) | |
4327 | rc = -EIO; /* bad smb */ | |
4328 | else { | |
4329 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
4330 | response_data = | |
737b758c SF |
4331 | (FILE_SYSTEM_DEVICE_INFO *) |
4332 | (((char *) &pSMBr->hdr.Protocol) + | |
1da177e4 LT |
4333 | data_offset); |
4334 | memcpy(&tcon->fsDevInfo, response_data, | |
4335 | sizeof (FILE_SYSTEM_DEVICE_INFO)); | |
4336 | } | |
4337 | } | |
4338 | cifs_buf_release(pSMB); | |
4339 | ||
4340 | if (rc == -EAGAIN) | |
4341 | goto QFSDeviceRetry; | |
4342 | ||
4343 | return rc; | |
4344 | } | |
4345 | ||
4346 | int | |
737b758c | 4347 | CIFSSMBQFSUnixInfo(const int xid, struct cifsTconInfo *tcon) |
1da177e4 LT |
4348 | { |
4349 | /* level 0x200 SMB_QUERY_CIFS_UNIX_INFO */ | |
4350 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4351 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4352 | FILE_SYSTEM_UNIX_INFO *response_data; | |
4353 | int rc = 0; | |
4354 | int bytes_returned = 0; | |
4355 | __u16 params, byte_count; | |
4356 | ||
4357 | cFYI(1, ("In QFSUnixInfo")); | |
4358 | QFSUnixRetry: | |
4359 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4360 | (void **) &pSMBr); | |
4361 | if (rc) | |
4362 | return rc; | |
4363 | ||
4364 | params = 2; /* level */ | |
4365 | pSMB->TotalDataCount = 0; | |
4366 | pSMB->DataCount = 0; | |
4367 | pSMB->DataOffset = 0; | |
4368 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4369 | pSMB->MaxDataCount = cpu_to_le16(100); /* BB find exact max SMB PDU from sess structure BB */ | |
4370 | pSMB->MaxSetupCount = 0; | |
4371 | pSMB->Reserved = 0; | |
4372 | pSMB->Flags = 0; | |
4373 | pSMB->Timeout = 0; | |
4374 | pSMB->Reserved2 = 0; | |
4375 | byte_count = params + 1 /* pad */ ; | |
4376 | pSMB->ParameterCount = cpu_to_le16(params); | |
4377 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
50c2f753 SF |
4378 | pSMB->ParameterOffset = cpu_to_le16(offsetof(struct |
4379 | smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
1da177e4 LT |
4380 | pSMB->SetupCount = 1; |
4381 | pSMB->Reserved3 = 0; | |
4382 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4383 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_CIFS_UNIX_INFO); | |
4384 | pSMB->hdr.smb_buf_length += byte_count; | |
4385 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4386 | ||
4387 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4388 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4389 | if (rc) { | |
4390 | cERROR(1, ("Send error in QFSUnixInfo = %d", rc)); | |
4391 | } else { /* decode response */ | |
4392 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4393 | ||
4394 | if (rc || (pSMBr->ByteCount < 13)) { | |
4395 | rc = -EIO; /* bad smb */ | |
4396 | } else { | |
4397 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
4398 | response_data = | |
4399 | (FILE_SYSTEM_UNIX_INFO | |
4400 | *) (((char *) &pSMBr->hdr.Protocol) + | |
4401 | data_offset); | |
4402 | memcpy(&tcon->fsUnixInfo, response_data, | |
4403 | sizeof (FILE_SYSTEM_UNIX_INFO)); | |
4404 | } | |
4405 | } | |
4406 | cifs_buf_release(pSMB); | |
4407 | ||
4408 | if (rc == -EAGAIN) | |
4409 | goto QFSUnixRetry; | |
4410 | ||
4411 | ||
4412 | return rc; | |
4413 | } | |
4414 | ||
ac67055e | 4415 | int |
45abc6ee | 4416 | CIFSSMBSetFSUnixInfo(const int xid, struct cifsTconInfo *tcon, __u64 cap) |
ac67055e JA |
4417 | { |
4418 | /* level 0x200 SMB_SET_CIFS_UNIX_INFO */ | |
4419 | TRANSACTION2_SETFSI_REQ *pSMB = NULL; | |
4420 | TRANSACTION2_SETFSI_RSP *pSMBr = NULL; | |
4421 | int rc = 0; | |
4422 | int bytes_returned = 0; | |
4423 | __u16 params, param_offset, offset, byte_count; | |
4424 | ||
4425 | cFYI(1, ("In SETFSUnixInfo")); | |
4426 | SETFSUnixRetry: | |
f26282c9 | 4427 | /* BB switch to small buf init to save memory */ |
ac67055e JA |
4428 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
4429 | (void **) &pSMBr); | |
4430 | if (rc) | |
4431 | return rc; | |
4432 | ||
4433 | params = 4; /* 2 bytes zero followed by info level. */ | |
4434 | pSMB->MaxSetupCount = 0; | |
4435 | pSMB->Reserved = 0; | |
4436 | pSMB->Flags = 0; | |
4437 | pSMB->Timeout = 0; | |
4438 | pSMB->Reserved2 = 0; | |
50c2f753 SF |
4439 | param_offset = offsetof(struct smb_com_transaction2_setfsi_req, FileNum) |
4440 | - 4; | |
ac67055e JA |
4441 | offset = param_offset + params; |
4442 | ||
4443 | pSMB->MaxParameterCount = cpu_to_le16(4); | |
4444 | pSMB->MaxDataCount = cpu_to_le16(100); /* BB find exact max SMB PDU from sess structure BB */ | |
4445 | pSMB->SetupCount = 1; | |
4446 | pSMB->Reserved3 = 0; | |
4447 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FS_INFORMATION); | |
4448 | byte_count = 1 /* pad */ + params + 12; | |
4449 | ||
4450 | pSMB->DataCount = cpu_to_le16(12); | |
4451 | pSMB->ParameterCount = cpu_to_le16(params); | |
4452 | pSMB->TotalDataCount = pSMB->DataCount; | |
4453 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4454 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4455 | pSMB->DataOffset = cpu_to_le16(offset); | |
4456 | ||
4457 | /* Params. */ | |
4458 | pSMB->FileNum = 0; | |
4459 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_CIFS_UNIX_INFO); | |
4460 | ||
4461 | /* Data. */ | |
4462 | pSMB->ClientUnixMajor = cpu_to_le16(CIFS_UNIX_MAJOR_VERSION); | |
4463 | pSMB->ClientUnixMinor = cpu_to_le16(CIFS_UNIX_MINOR_VERSION); | |
4464 | pSMB->ClientUnixCap = cpu_to_le64(cap); | |
4465 | ||
4466 | pSMB->hdr.smb_buf_length += byte_count; | |
4467 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4468 | ||
4469 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4470 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4471 | if (rc) { | |
4472 | cERROR(1, ("Send error in SETFSUnixInfo = %d", rc)); | |
4473 | } else { /* decode response */ | |
4474 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4475 | if (rc) { | |
4476 | rc = -EIO; /* bad smb */ | |
4477 | } | |
4478 | } | |
4479 | cifs_buf_release(pSMB); | |
4480 | ||
4481 | if (rc == -EAGAIN) | |
4482 | goto SETFSUnixRetry; | |
4483 | ||
4484 | return rc; | |
4485 | } | |
4486 | ||
4487 | ||
1da177e4 LT |
4488 | |
4489 | int | |
4490 | CIFSSMBQFSPosixInfo(const int xid, struct cifsTconInfo *tcon, | |
737b758c | 4491 | struct kstatfs *FSData) |
1da177e4 LT |
4492 | { |
4493 | /* level 0x201 SMB_QUERY_CIFS_POSIX_INFO */ | |
4494 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4495 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4496 | FILE_SYSTEM_POSIX_INFO *response_data; | |
4497 | int rc = 0; | |
4498 | int bytes_returned = 0; | |
4499 | __u16 params, byte_count; | |
4500 | ||
4501 | cFYI(1, ("In QFSPosixInfo")); | |
4502 | QFSPosixRetry: | |
4503 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4504 | (void **) &pSMBr); | |
4505 | if (rc) | |
4506 | return rc; | |
4507 | ||
4508 | params = 2; /* level */ | |
4509 | pSMB->TotalDataCount = 0; | |
4510 | pSMB->DataCount = 0; | |
4511 | pSMB->DataOffset = 0; | |
4512 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4513 | pSMB->MaxDataCount = cpu_to_le16(100); /* BB find exact max SMB PDU from sess structure BB */ | |
4514 | pSMB->MaxSetupCount = 0; | |
4515 | pSMB->Reserved = 0; | |
4516 | pSMB->Flags = 0; | |
4517 | pSMB->Timeout = 0; | |
4518 | pSMB->Reserved2 = 0; | |
4519 | byte_count = params + 1 /* pad */ ; | |
4520 | pSMB->ParameterCount = cpu_to_le16(params); | |
4521 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
50c2f753 SF |
4522 | pSMB->ParameterOffset = cpu_to_le16(offsetof(struct |
4523 | smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
1da177e4 LT |
4524 | pSMB->SetupCount = 1; |
4525 | pSMB->Reserved3 = 0; | |
4526 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4527 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_POSIX_FS_INFO); | |
4528 | pSMB->hdr.smb_buf_length += byte_count; | |
4529 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4530 | ||
4531 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4532 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4533 | if (rc) { | |
4534 | cFYI(1, ("Send error in QFSUnixInfo = %d", rc)); | |
4535 | } else { /* decode response */ | |
4536 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4537 | ||
4538 | if (rc || (pSMBr->ByteCount < 13)) { | |
4539 | rc = -EIO; /* bad smb */ | |
4540 | } else { | |
4541 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
4542 | response_data = | |
4543 | (FILE_SYSTEM_POSIX_INFO | |
4544 | *) (((char *) &pSMBr->hdr.Protocol) + | |
4545 | data_offset); | |
4546 | FSData->f_bsize = | |
4547 | le32_to_cpu(response_data->BlockSize); | |
4548 | FSData->f_blocks = | |
4549 | le64_to_cpu(response_data->TotalBlocks); | |
4550 | FSData->f_bfree = | |
4551 | le64_to_cpu(response_data->BlocksAvail); | |
790fe579 | 4552 | if (response_data->UserBlocksAvail == cpu_to_le64(-1)) { |
1da177e4 LT |
4553 | FSData->f_bavail = FSData->f_bfree; |
4554 | } else { | |
4555 | FSData->f_bavail = | |
50c2f753 | 4556 | le64_to_cpu(response_data->UserBlocksAvail); |
1da177e4 | 4557 | } |
790fe579 | 4558 | if (response_data->TotalFileNodes != cpu_to_le64(-1)) |
1da177e4 | 4559 | FSData->f_files = |
50c2f753 | 4560 | le64_to_cpu(response_data->TotalFileNodes); |
790fe579 | 4561 | if (response_data->FreeFileNodes != cpu_to_le64(-1)) |
1da177e4 | 4562 | FSData->f_ffree = |
50c2f753 | 4563 | le64_to_cpu(response_data->FreeFileNodes); |
1da177e4 LT |
4564 | } |
4565 | } | |
4566 | cifs_buf_release(pSMB); | |
4567 | ||
4568 | if (rc == -EAGAIN) | |
4569 | goto QFSPosixRetry; | |
4570 | ||
4571 | return rc; | |
4572 | } | |
4573 | ||
4574 | ||
50c2f753 SF |
4575 | /* We can not use write of zero bytes trick to |
4576 | set file size due to need for large file support. Also note that | |
4577 | this SetPathInfo is preferred to SetFileInfo based method in next | |
1da177e4 LT |
4578 | routine which is only needed to work around a sharing violation bug |
4579 | in Samba which this routine can run into */ | |
4580 | ||
4581 | int | |
4582 | CIFSSMBSetEOF(const int xid, struct cifsTconInfo *tcon, const char *fileName, | |
50c2f753 | 4583 | __u64 size, int SetAllocation, |
737b758c | 4584 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
4585 | { |
4586 | struct smb_com_transaction2_spi_req *pSMB = NULL; | |
4587 | struct smb_com_transaction2_spi_rsp *pSMBr = NULL; | |
4588 | struct file_end_of_file_info *parm_data; | |
4589 | int name_len; | |
4590 | int rc = 0; | |
4591 | int bytes_returned = 0; | |
4592 | __u16 params, byte_count, data_count, param_offset, offset; | |
4593 | ||
4594 | cFYI(1, ("In SetEOF")); | |
4595 | SetEOFRetry: | |
4596 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4597 | (void **) &pSMBr); | |
4598 | if (rc) | |
4599 | return rc; | |
4600 | ||
4601 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
4602 | name_len = | |
b1a45695 | 4603 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 4604 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
4605 | name_len++; /* trailing null */ |
4606 | name_len *= 2; | |
3e87d803 | 4607 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
4608 | name_len = strnlen(fileName, PATH_MAX); |
4609 | name_len++; /* trailing null */ | |
4610 | strncpy(pSMB->FileName, fileName, name_len); | |
4611 | } | |
4612 | params = 6 + name_len; | |
4613 | data_count = sizeof (struct file_end_of_file_info); | |
4614 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3e87d803 | 4615 | pSMB->MaxDataCount = cpu_to_le16(4100); |
1da177e4 LT |
4616 | pSMB->MaxSetupCount = 0; |
4617 | pSMB->Reserved = 0; | |
4618 | pSMB->Flags = 0; | |
4619 | pSMB->Timeout = 0; | |
4620 | pSMB->Reserved2 = 0; | |
4621 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 4622 | InformationLevel) - 4; |
1da177e4 | 4623 | offset = param_offset + params; |
790fe579 | 4624 | if (SetAllocation) { |
50c2f753 SF |
4625 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
4626 | pSMB->InformationLevel = | |
4627 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO2); | |
4628 | else | |
4629 | pSMB->InformationLevel = | |
4630 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO); | |
4631 | } else /* Set File Size */ { | |
1da177e4 LT |
4632 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
4633 | pSMB->InformationLevel = | |
50c2f753 | 4634 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO2); |
1da177e4 LT |
4635 | else |
4636 | pSMB->InformationLevel = | |
50c2f753 | 4637 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO); |
1da177e4 LT |
4638 | } |
4639 | ||
4640 | parm_data = | |
4641 | (struct file_end_of_file_info *) (((char *) &pSMB->hdr.Protocol) + | |
4642 | offset); | |
4643 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4644 | pSMB->DataOffset = cpu_to_le16(offset); | |
4645 | pSMB->SetupCount = 1; | |
4646 | pSMB->Reserved3 = 0; | |
4647 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
4648 | byte_count = 3 /* pad */ + params + data_count; | |
4649 | pSMB->DataCount = cpu_to_le16(data_count); | |
4650 | pSMB->TotalDataCount = pSMB->DataCount; | |
4651 | pSMB->ParameterCount = cpu_to_le16(params); | |
4652 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4653 | pSMB->Reserved4 = 0; | |
4654 | pSMB->hdr.smb_buf_length += byte_count; | |
4655 | parm_data->FileSize = cpu_to_le64(size); | |
4656 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4657 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4658 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4659 | if (rc) { | |
4660 | cFYI(1, ("SetPathInfo (file size) returned %d", rc)); | |
4661 | } | |
4662 | ||
4663 | cifs_buf_release(pSMB); | |
4664 | ||
4665 | if (rc == -EAGAIN) | |
4666 | goto SetEOFRetry; | |
4667 | ||
4668 | return rc; | |
4669 | } | |
4670 | ||
4671 | int | |
50c2f753 SF |
4672 | CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon, __u64 size, |
4673 | __u16 fid, __u32 pid_of_opener, int SetAllocation) | |
1da177e4 LT |
4674 | { |
4675 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
4676 | struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; | |
4677 | char *data_offset; | |
4678 | struct file_end_of_file_info *parm_data; | |
4679 | int rc = 0; | |
4680 | int bytes_returned = 0; | |
4681 | __u16 params, param_offset, offset, byte_count, count; | |
4682 | ||
4683 | cFYI(1, ("SetFileSize (via SetFileInfo) %lld", | |
4684 | (long long)size)); | |
cd63499c SF |
4685 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
4686 | ||
1da177e4 LT |
4687 | if (rc) |
4688 | return rc; | |
4689 | ||
cd63499c SF |
4690 | pSMBr = (struct smb_com_transaction2_sfi_rsp *)pSMB; |
4691 | ||
1da177e4 LT |
4692 | pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener); |
4693 | pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16)); | |
50c2f753 | 4694 | |
1da177e4 LT |
4695 | params = 6; |
4696 | pSMB->MaxSetupCount = 0; | |
4697 | pSMB->Reserved = 0; | |
4698 | pSMB->Flags = 0; | |
4699 | pSMB->Timeout = 0; | |
4700 | pSMB->Reserved2 = 0; | |
4701 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
4702 | offset = param_offset + params; | |
4703 | ||
50c2f753 | 4704 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; |
1da177e4 LT |
4705 | |
4706 | count = sizeof(struct file_end_of_file_info); | |
4707 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4708 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB PDU from sess */ | |
4709 | pSMB->SetupCount = 1; | |
4710 | pSMB->Reserved3 = 0; | |
4711 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
4712 | byte_count = 3 /* pad */ + params + count; | |
4713 | pSMB->DataCount = cpu_to_le16(count); | |
4714 | pSMB->ParameterCount = cpu_to_le16(params); | |
4715 | pSMB->TotalDataCount = pSMB->DataCount; | |
4716 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4717 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4718 | parm_data = | |
50c2f753 SF |
4719 | (struct file_end_of_file_info *) (((char *) &pSMB->hdr.Protocol) |
4720 | + offset); | |
1da177e4 LT |
4721 | pSMB->DataOffset = cpu_to_le16(offset); |
4722 | parm_data->FileSize = cpu_to_le64(size); | |
4723 | pSMB->Fid = fid; | |
790fe579 | 4724 | if (SetAllocation) { |
1da177e4 LT |
4725 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
4726 | pSMB->InformationLevel = | |
4727 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO2); | |
4728 | else | |
4729 | pSMB->InformationLevel = | |
4730 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO); | |
50c2f753 | 4731 | } else /* Set File Size */ { |
1da177e4 LT |
4732 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
4733 | pSMB->InformationLevel = | |
50c2f753 | 4734 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO2); |
1da177e4 LT |
4735 | else |
4736 | pSMB->InformationLevel = | |
50c2f753 | 4737 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO); |
1da177e4 LT |
4738 | } |
4739 | pSMB->Reserved4 = 0; | |
4740 | pSMB->hdr.smb_buf_length += byte_count; | |
4741 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4742 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4743 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4744 | if (rc) { | |
4745 | cFYI(1, | |
4746 | ("Send error in SetFileInfo (SetFileSize) = %d", | |
4747 | rc)); | |
4748 | } | |
4749 | ||
4750 | if (pSMB) | |
cd63499c | 4751 | cifs_small_buf_release(pSMB); |
1da177e4 | 4752 | |
50c2f753 | 4753 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
1da177e4 LT |
4754 | since file handle passed in no longer valid */ |
4755 | ||
4756 | return rc; | |
4757 | } | |
4758 | ||
50c2f753 | 4759 | /* Some legacy servers such as NT4 require that the file times be set on |
1da177e4 LT |
4760 | an open handle, rather than by pathname - this is awkward due to |
4761 | potential access conflicts on the open, but it is unavoidable for these | |
4762 | old servers since the only other choice is to go from 100 nanosecond DCE | |
4763 | time and resort to the original setpathinfo level which takes the ancient | |
4764 | DOS time format with 2 second granularity */ | |
4765 | int | |
50c2f753 SF |
4766 | CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon, |
4767 | const FILE_BASIC_INFO *data, __u16 fid) | |
1da177e4 LT |
4768 | { |
4769 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
4770 | struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; | |
4771 | char *data_offset; | |
4772 | int rc = 0; | |
4773 | int bytes_returned = 0; | |
4774 | __u16 params, param_offset, offset, byte_count, count; | |
4775 | ||
4776 | cFYI(1, ("Set Times (via SetFileInfo)")); | |
cd63499c SF |
4777 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
4778 | ||
1da177e4 LT |
4779 | if (rc) |
4780 | return rc; | |
4781 | ||
cd63499c SF |
4782 | pSMBr = (struct smb_com_transaction2_sfi_rsp *)pSMB; |
4783 | ||
1da177e4 LT |
4784 | /* At this point there is no need to override the current pid |
4785 | with the pid of the opener, but that could change if we someday | |
4786 | use an existing handle (rather than opening one on the fly) */ | |
4787 | /* pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener); | |
4788 | pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16));*/ | |
50c2f753 | 4789 | |
1da177e4 LT |
4790 | params = 6; |
4791 | pSMB->MaxSetupCount = 0; | |
4792 | pSMB->Reserved = 0; | |
4793 | pSMB->Flags = 0; | |
4794 | pSMB->Timeout = 0; | |
4795 | pSMB->Reserved2 = 0; | |
4796 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
4797 | offset = param_offset + params; | |
4798 | ||
50c2f753 | 4799 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; |
1da177e4 LT |
4800 | |
4801 | count = sizeof (FILE_BASIC_INFO); | |
4802 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4803 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB PDU from sess */ | |
4804 | pSMB->SetupCount = 1; | |
4805 | pSMB->Reserved3 = 0; | |
4806 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
4807 | byte_count = 3 /* pad */ + params + count; | |
4808 | pSMB->DataCount = cpu_to_le16(count); | |
4809 | pSMB->ParameterCount = cpu_to_le16(params); | |
4810 | pSMB->TotalDataCount = pSMB->DataCount; | |
4811 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4812 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4813 | pSMB->DataOffset = cpu_to_le16(offset); | |
4814 | pSMB->Fid = fid; | |
4815 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) | |
4816 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO2); | |
4817 | else | |
4818 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO); | |
4819 | pSMB->Reserved4 = 0; | |
4820 | pSMB->hdr.smb_buf_length += byte_count; | |
4821 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
50c2f753 | 4822 | memcpy(data_offset, data, sizeof(FILE_BASIC_INFO)); |
1da177e4 LT |
4823 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
4824 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4825 | if (rc) { | |
50c2f753 | 4826 | cFYI(1, ("Send error in Set Time (SetFileInfo) = %d", rc)); |
1da177e4 LT |
4827 | } |
4828 | ||
cd63499c | 4829 | cifs_small_buf_release(pSMB); |
1da177e4 | 4830 | |
50c2f753 | 4831 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
1da177e4 LT |
4832 | since file handle passed in no longer valid */ |
4833 | ||
4834 | return rc; | |
4835 | } | |
4836 | ||
4837 | ||
4838 | int | |
4839 | CIFSSMBSetTimes(const int xid, struct cifsTconInfo *tcon, const char *fileName, | |
50c2f753 | 4840 | const FILE_BASIC_INFO *data, |
737b758c | 4841 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
4842 | { |
4843 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
4844 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
4845 | int name_len; | |
4846 | int rc = 0; | |
4847 | int bytes_returned = 0; | |
4848 | char *data_offset; | |
4849 | __u16 params, param_offset, offset, byte_count, count; | |
4850 | ||
4851 | cFYI(1, ("In SetTimes")); | |
4852 | ||
4853 | SetTimesRetry: | |
4854 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4855 | (void **) &pSMBr); | |
4856 | if (rc) | |
4857 | return rc; | |
4858 | ||
4859 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
4860 | name_len = | |
b1a45695 | 4861 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 4862 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
4863 | name_len++; /* trailing null */ |
4864 | name_len *= 2; | |
50c2f753 | 4865 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
4866 | name_len = strnlen(fileName, PATH_MAX); |
4867 | name_len++; /* trailing null */ | |
4868 | strncpy(pSMB->FileName, fileName, name_len); | |
4869 | } | |
4870 | ||
4871 | params = 6 + name_len; | |
4872 | count = sizeof (FILE_BASIC_INFO); | |
4873 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4874 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find exact max SMB PDU from sess structure BB */ | |
4875 | pSMB->MaxSetupCount = 0; | |
4876 | pSMB->Reserved = 0; | |
4877 | pSMB->Flags = 0; | |
4878 | pSMB->Timeout = 0; | |
4879 | pSMB->Reserved2 = 0; | |
4880 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 4881 | InformationLevel) - 4; |
1da177e4 LT |
4882 | offset = param_offset + params; |
4883 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
4884 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4885 | pSMB->DataOffset = cpu_to_le16(offset); | |
4886 | pSMB->SetupCount = 1; | |
4887 | pSMB->Reserved3 = 0; | |
4888 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
4889 | byte_count = 3 /* pad */ + params + count; | |
4890 | ||
4891 | pSMB->DataCount = cpu_to_le16(count); | |
4892 | pSMB->ParameterCount = cpu_to_le16(params); | |
4893 | pSMB->TotalDataCount = pSMB->DataCount; | |
4894 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4895 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) | |
4896 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO2); | |
4897 | else | |
4898 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO); | |
4899 | pSMB->Reserved4 = 0; | |
4900 | pSMB->hdr.smb_buf_length += byte_count; | |
4901 | memcpy(data_offset, data, sizeof (FILE_BASIC_INFO)); | |
4902 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4903 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4904 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4905 | if (rc) { | |
4906 | cFYI(1, ("SetPathInfo (times) returned %d", rc)); | |
4907 | } | |
4908 | ||
4909 | cifs_buf_release(pSMB); | |
4910 | ||
4911 | if (rc == -EAGAIN) | |
4912 | goto SetTimesRetry; | |
4913 | ||
4914 | return rc; | |
4915 | } | |
4916 | ||
4917 | /* Can not be used to set time stamps yet (due to old DOS time format) */ | |
4918 | /* Can be used to set attributes */ | |
4919 | #if 0 /* Possibly not needed - since it turns out that strangely NT4 has a bug | |
4920 | handling it anyway and NT4 was what we thought it would be needed for | |
4921 | Do not delete it until we prove whether needed for Win9x though */ | |
4922 | int | |
4923 | CIFSSMBSetAttrLegacy(int xid, struct cifsTconInfo *tcon, char *fileName, | |
4924 | __u16 dos_attrs, const struct nls_table *nls_codepage) | |
4925 | { | |
4926 | SETATTR_REQ *pSMB = NULL; | |
4927 | SETATTR_RSP *pSMBr = NULL; | |
4928 | int rc = 0; | |
4929 | int bytes_returned; | |
4930 | int name_len; | |
4931 | ||
4932 | cFYI(1, ("In SetAttrLegacy")); | |
4933 | ||
4934 | SetAttrLgcyRetry: | |
4935 | rc = smb_init(SMB_COM_SETATTR, 8, tcon, (void **) &pSMB, | |
4936 | (void **) &pSMBr); | |
4937 | if (rc) | |
4938 | return rc; | |
4939 | ||
4940 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
4941 | name_len = | |
50c2f753 | 4942 | ConvertToUCS((__le16 *) pSMB->fileName, fileName, |
1da177e4 LT |
4943 | PATH_MAX, nls_codepage); |
4944 | name_len++; /* trailing null */ | |
4945 | name_len *= 2; | |
50c2f753 | 4946 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
4947 | name_len = strnlen(fileName, PATH_MAX); |
4948 | name_len++; /* trailing null */ | |
4949 | strncpy(pSMB->fileName, fileName, name_len); | |
4950 | } | |
4951 | pSMB->attr = cpu_to_le16(dos_attrs); | |
4952 | pSMB->BufferFormat = 0x04; | |
4953 | pSMB->hdr.smb_buf_length += name_len + 1; | |
4954 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
4955 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4956 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4957 | if (rc) { | |
4958 | cFYI(1, ("Error in LegacySetAttr = %d", rc)); | |
4959 | } | |
4960 | ||
4961 | cifs_buf_release(pSMB); | |
4962 | ||
4963 | if (rc == -EAGAIN) | |
4964 | goto SetAttrLgcyRetry; | |
4965 | ||
4966 | return rc; | |
4967 | } | |
4968 | #endif /* temporarily unneeded SetAttr legacy function */ | |
4969 | ||
4970 | int | |
4971 | CIFSSMBUnixSetPerms(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 SF |
4972 | char *fileName, __u64 mode, __u64 uid, __u64 gid, |
4973 | dev_t device, const struct nls_table *nls_codepage, | |
737b758c | 4974 | int remap) |
1da177e4 LT |
4975 | { |
4976 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
4977 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
4978 | int name_len; | |
4979 | int rc = 0; | |
4980 | int bytes_returned = 0; | |
4981 | FILE_UNIX_BASIC_INFO *data_offset; | |
4982 | __u16 params, param_offset, offset, count, byte_count; | |
4983 | ||
4984 | cFYI(1, ("In SetUID/GID/Mode")); | |
4985 | setPermsRetry: | |
4986 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4987 | (void **) &pSMBr); | |
4988 | if (rc) | |
4989 | return rc; | |
4990 | ||
4991 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
4992 | name_len = | |
50c2f753 | 4993 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 4994 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
4995 | name_len++; /* trailing null */ |
4996 | name_len *= 2; | |
3e87d803 | 4997 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
4998 | name_len = strnlen(fileName, PATH_MAX); |
4999 | name_len++; /* trailing null */ | |
5000 | strncpy(pSMB->FileName, fileName, name_len); | |
5001 | } | |
5002 | ||
5003 | params = 6 + name_len; | |
5004 | count = sizeof (FILE_UNIX_BASIC_INFO); | |
5005 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
5006 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find exact max SMB PDU from sess structure BB */ | |
5007 | pSMB->MaxSetupCount = 0; | |
5008 | pSMB->Reserved = 0; | |
5009 | pSMB->Flags = 0; | |
5010 | pSMB->Timeout = 0; | |
5011 | pSMB->Reserved2 = 0; | |
5012 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 5013 | InformationLevel) - 4; |
1da177e4 LT |
5014 | offset = param_offset + params; |
5015 | data_offset = | |
5016 | (FILE_UNIX_BASIC_INFO *) ((char *) &pSMB->hdr.Protocol + | |
5017 | offset); | |
5018 | memset(data_offset, 0, count); | |
5019 | pSMB->DataOffset = cpu_to_le16(offset); | |
5020 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
5021 | pSMB->SetupCount = 1; | |
5022 | pSMB->Reserved3 = 0; | |
5023 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
5024 | byte_count = 3 /* pad */ + params + count; | |
5025 | pSMB->ParameterCount = cpu_to_le16(params); | |
5026 | pSMB->DataCount = cpu_to_le16(count); | |
5027 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
5028 | pSMB->TotalDataCount = pSMB->DataCount; | |
5029 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_BASIC); | |
5030 | pSMB->Reserved4 = 0; | |
5031 | pSMB->hdr.smb_buf_length += byte_count; | |
c7af1857 SF |
5032 | /* Samba server ignores set of file size to zero due to bugs in some |
5033 | older clients, but we should be precise - we use SetFileSize to | |
5034 | set file size and do not want to truncate file size to zero | |
5035 | accidently as happened on one Samba server beta by putting | |
50c2f753 | 5036 | zero instead of -1 here */ |
c7af1857 SF |
5037 | data_offset->EndOfFile = NO_CHANGE_64; |
5038 | data_offset->NumOfBytes = NO_CHANGE_64; | |
5039 | data_offset->LastStatusChange = NO_CHANGE_64; | |
5040 | data_offset->LastAccessTime = NO_CHANGE_64; | |
5041 | data_offset->LastModificationTime = NO_CHANGE_64; | |
1da177e4 LT |
5042 | data_offset->Uid = cpu_to_le64(uid); |
5043 | data_offset->Gid = cpu_to_le64(gid); | |
5044 | /* better to leave device as zero when it is */ | |
5045 | data_offset->DevMajor = cpu_to_le64(MAJOR(device)); | |
5046 | data_offset->DevMinor = cpu_to_le64(MINOR(device)); | |
5047 | data_offset->Permissions = cpu_to_le64(mode); | |
50c2f753 | 5048 | |
790fe579 | 5049 | if (S_ISREG(mode)) |
1da177e4 | 5050 | data_offset->Type = cpu_to_le32(UNIX_FILE); |
790fe579 | 5051 | else if (S_ISDIR(mode)) |
1da177e4 | 5052 | data_offset->Type = cpu_to_le32(UNIX_DIR); |
790fe579 | 5053 | else if (S_ISLNK(mode)) |
1da177e4 | 5054 | data_offset->Type = cpu_to_le32(UNIX_SYMLINK); |
790fe579 | 5055 | else if (S_ISCHR(mode)) |
1da177e4 | 5056 | data_offset->Type = cpu_to_le32(UNIX_CHARDEV); |
790fe579 | 5057 | else if (S_ISBLK(mode)) |
1da177e4 | 5058 | data_offset->Type = cpu_to_le32(UNIX_BLOCKDEV); |
790fe579 | 5059 | else if (S_ISFIFO(mode)) |
1da177e4 | 5060 | data_offset->Type = cpu_to_le32(UNIX_FIFO); |
790fe579 | 5061 | else if (S_ISSOCK(mode)) |
1da177e4 LT |
5062 | data_offset->Type = cpu_to_le32(UNIX_SOCKET); |
5063 | ||
5064 | ||
5065 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
5066 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
5067 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
5068 | if (rc) { | |
5069 | cFYI(1, ("SetPathInfo (perms) returned %d", rc)); | |
5070 | } | |
5071 | ||
5072 | if (pSMB) | |
5073 | cifs_buf_release(pSMB); | |
5074 | if (rc == -EAGAIN) | |
5075 | goto setPermsRetry; | |
5076 | return rc; | |
5077 | } | |
5078 | ||
50c2f753 | 5079 | int CIFSSMBNotify(const int xid, struct cifsTconInfo *tcon, |
167a251a | 5080 | const int notify_subdirs, const __u16 netfid, |
50c2f753 | 5081 | __u32 filter, struct file *pfile, int multishot, |
167a251a | 5082 | const struct nls_table *nls_codepage) |
1da177e4 LT |
5083 | { |
5084 | int rc = 0; | |
50c2f753 SF |
5085 | struct smb_com_transaction_change_notify_req *pSMB = NULL; |
5086 | struct smb_com_ntransaction_change_notify_rsp *pSMBr = NULL; | |
abb15b8a | 5087 | struct dir_notify_req *dnotify_req; |
1da177e4 LT |
5088 | int bytes_returned; |
5089 | ||
50c2f753 | 5090 | cFYI(1, ("In CIFSSMBNotify for file handle %d", (int)netfid)); |
1da177e4 | 5091 | rc = smb_init(SMB_COM_NT_TRANSACT, 23, tcon, (void **) &pSMB, |
50c2f753 | 5092 | (void **) &pSMBr); |
1da177e4 LT |
5093 | if (rc) |
5094 | return rc; | |
5095 | ||
5096 | pSMB->TotalParameterCount = 0 ; | |
5097 | pSMB->TotalDataCount = 0; | |
5098 | pSMB->MaxParameterCount = cpu_to_le32(2); | |
5099 | /* BB find exact data count max from sess structure BB */ | |
5100 | pSMB->MaxDataCount = 0; /* same in little endian or be */ | |
0a4b92c0 SF |
5101 | /* BB VERIFY verify which is correct for above BB */ |
5102 | pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf - | |
5103 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
5104 | ||
1da177e4 LT |
5105 | pSMB->MaxSetupCount = 4; |
5106 | pSMB->Reserved = 0; | |
5107 | pSMB->ParameterOffset = 0; | |
5108 | pSMB->DataCount = 0; | |
5109 | pSMB->DataOffset = 0; | |
5110 | pSMB->SetupCount = 4; /* single byte does not need le conversion */ | |
5111 | pSMB->SubCommand = cpu_to_le16(NT_TRANSACT_NOTIFY_CHANGE); | |
5112 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
790fe579 | 5113 | if (notify_subdirs) |
1da177e4 LT |
5114 | pSMB->WatchTree = 1; /* one byte - no le conversion needed */ |
5115 | pSMB->Reserved2 = 0; | |
5116 | pSMB->CompletionFilter = cpu_to_le32(filter); | |
5117 | pSMB->Fid = netfid; /* file handle always le */ | |
5118 | pSMB->ByteCount = 0; | |
5119 | ||
5120 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
5121 | (struct smb_hdr *) pSMBr, &bytes_returned, -1); | |
5122 | if (rc) { | |
5123 | cFYI(1, ("Error in Notify = %d", rc)); | |
ff5dbd9e SF |
5124 | } else { |
5125 | /* Add file to outstanding requests */ | |
50c2f753 | 5126 | /* BB change to kmem cache alloc */ |
5cbded58 | 5127 | dnotify_req = kmalloc( |
47c786e7 SF |
5128 | sizeof(struct dir_notify_req), |
5129 | GFP_KERNEL); | |
790fe579 | 5130 | if (dnotify_req) { |
47c786e7 SF |
5131 | dnotify_req->Pid = pSMB->hdr.Pid; |
5132 | dnotify_req->PidHigh = pSMB->hdr.PidHigh; | |
5133 | dnotify_req->Mid = pSMB->hdr.Mid; | |
5134 | dnotify_req->Tid = pSMB->hdr.Tid; | |
5135 | dnotify_req->Uid = pSMB->hdr.Uid; | |
5136 | dnotify_req->netfid = netfid; | |
5137 | dnotify_req->pfile = pfile; | |
5138 | dnotify_req->filter = filter; | |
5139 | dnotify_req->multishot = multishot; | |
5140 | spin_lock(&GlobalMid_Lock); | |
50c2f753 | 5141 | list_add_tail(&dnotify_req->lhead, |
47c786e7 SF |
5142 | &GlobalDnotifyReqList); |
5143 | spin_unlock(&GlobalMid_Lock); | |
50c2f753 | 5144 | } else |
47c786e7 | 5145 | rc = -ENOMEM; |
1da177e4 LT |
5146 | } |
5147 | cifs_buf_release(pSMB); | |
50c2f753 | 5148 | return rc; |
1da177e4 LT |
5149 | } |
5150 | #ifdef CONFIG_CIFS_XATTR | |
5151 | ssize_t | |
5152 | CIFSSMBQAllEAs(const int xid, struct cifsTconInfo *tcon, | |
5153 | const unsigned char *searchName, | |
50c2f753 | 5154 | char *EAData, size_t buf_size, |
737b758c | 5155 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
5156 | { |
5157 | /* BB assumes one setup word */ | |
5158 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
5159 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
5160 | int rc = 0; | |
5161 | int bytes_returned; | |
5162 | int name_len; | |
50c2f753 SF |
5163 | struct fea *temp_fea; |
5164 | char *temp_ptr; | |
1da177e4 LT |
5165 | __u16 params, byte_count; |
5166 | ||
5167 | cFYI(1, ("In Query All EAs path %s", searchName)); | |
5168 | QAllEAsRetry: | |
5169 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
5170 | (void **) &pSMBr); | |
5171 | if (rc) | |
5172 | return rc; | |
5173 | ||
5174 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
5175 | name_len = | |
50c2f753 | 5176 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 5177 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
5178 | name_len++; /* trailing null */ |
5179 | name_len *= 2; | |
5180 | } else { /* BB improve the check for buffer overruns BB */ | |
5181 | name_len = strnlen(searchName, PATH_MAX); | |
5182 | name_len++; /* trailing null */ | |
5183 | strncpy(pSMB->FileName, searchName, name_len); | |
5184 | } | |
5185 | ||
50c2f753 | 5186 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */; |
1da177e4 LT |
5187 | pSMB->TotalDataCount = 0; |
5188 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
5189 | pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ | |
5190 | pSMB->MaxSetupCount = 0; | |
5191 | pSMB->Reserved = 0; | |
5192 | pSMB->Flags = 0; | |
5193 | pSMB->Timeout = 0; | |
5194 | pSMB->Reserved2 = 0; | |
5195 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 5196 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
1da177e4 LT |
5197 | pSMB->DataCount = 0; |
5198 | pSMB->DataOffset = 0; | |
5199 | pSMB->SetupCount = 1; | |
5200 | pSMB->Reserved3 = 0; | |
5201 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
5202 | byte_count = params + 1 /* pad */ ; | |
5203 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
5204 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
5205 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_QUERY_ALL_EAS); | |
5206 | pSMB->Reserved4 = 0; | |
5207 | pSMB->hdr.smb_buf_length += byte_count; | |
5208 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
5209 | ||
5210 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
5211 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
5212 | if (rc) { | |
5213 | cFYI(1, ("Send error in QueryAllEAs = %d", rc)); | |
5214 | } else { /* decode response */ | |
5215 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
5216 | ||
5217 | /* BB also check enough total bytes returned */ | |
5218 | /* BB we need to improve the validity checking | |
5219 | of these trans2 responses */ | |
50c2f753 | 5220 | if (rc || (pSMBr->ByteCount < 4)) |
1da177e4 LT |
5221 | rc = -EIO; /* bad smb */ |
5222 | /* else if (pFindData){ | |
5223 | memcpy((char *) pFindData, | |
5224 | (char *) &pSMBr->hdr.Protocol + | |
5225 | data_offset, kl); | |
5226 | }*/ else { | |
5227 | /* check that length of list is not more than bcc */ | |
5228 | /* check that each entry does not go beyond length | |
5229 | of list */ | |
5230 | /* check that each element of each entry does not | |
5231 | go beyond end of list */ | |
5232 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
50c2f753 | 5233 | struct fealist *ea_response_data; |
1da177e4 LT |
5234 | rc = 0; |
5235 | /* validate_trans2_offsets() */ | |
790fe579 | 5236 | /* BB check if start of smb + data_offset > &bcc+ bcc */ |
1da177e4 LT |
5237 | ea_response_data = (struct fealist *) |
5238 | (((char *) &pSMBr->hdr.Protocol) + | |
5239 | data_offset); | |
5240 | name_len = le32_to_cpu(ea_response_data->list_len); | |
50c2f753 | 5241 | cFYI(1, ("ea length %d", name_len)); |
790fe579 | 5242 | if (name_len <= 8) { |
1da177e4 | 5243 | /* returned EA size zeroed at top of function */ |
50c2f753 | 5244 | cFYI(1, ("empty EA list returned from server")); |
1da177e4 LT |
5245 | } else { |
5246 | /* account for ea list len */ | |
5247 | name_len -= 4; | |
5248 | temp_fea = ea_response_data->list; | |
5249 | temp_ptr = (char *)temp_fea; | |
50c2f753 | 5250 | while (name_len > 0) { |
1da177e4 LT |
5251 | __u16 value_len; |
5252 | name_len -= 4; | |
5253 | temp_ptr += 4; | |
5254 | rc += temp_fea->name_len; | |
5255 | /* account for prefix user. and trailing null */ | |
790fe579 SF |
5256 | rc = rc + 5 + 1; |
5257 | if (rc < (int)buf_size) { | |
50c2f753 SF |
5258 | memcpy(EAData, "user.", 5); |
5259 | EAData += 5; | |
5260 | memcpy(EAData, temp_ptr, | |
5261 | temp_fea->name_len); | |
5262 | EAData += temp_fea->name_len; | |
1da177e4 LT |
5263 | /* null terminate name */ |
5264 | *EAData = 0; | |
5265 | EAData = EAData + 1; | |
790fe579 | 5266 | } else if (buf_size == 0) { |
1da177e4 LT |
5267 | /* skip copy - calc size only */ |
5268 | } else { | |
5269 | /* stop before overrun buffer */ | |
5270 | rc = -ERANGE; | |
5271 | break; | |
5272 | } | |
5273 | name_len -= temp_fea->name_len; | |
5274 | temp_ptr += temp_fea->name_len; | |
5275 | /* account for trailing null */ | |
5276 | name_len--; | |
5277 | temp_ptr++; | |
50c2f753 SF |
5278 | value_len = |
5279 | le16_to_cpu(temp_fea->value_len); | |
1da177e4 LT |
5280 | name_len -= value_len; |
5281 | temp_ptr += value_len; | |
50c2f753 SF |
5282 | /* BB check that temp_ptr is still |
5283 | within the SMB BB*/ | |
5284 | ||
5285 | /* no trailing null to account for | |
5286 | in value len */ | |
1da177e4 LT |
5287 | /* go on to next EA */ |
5288 | temp_fea = (struct fea *)temp_ptr; | |
5289 | } | |
5290 | } | |
5291 | } | |
5292 | } | |
5293 | if (pSMB) | |
5294 | cifs_buf_release(pSMB); | |
5295 | if (rc == -EAGAIN) | |
5296 | goto QAllEAsRetry; | |
5297 | ||
5298 | return (ssize_t)rc; | |
5299 | } | |
5300 | ||
50c2f753 SF |
5301 | ssize_t CIFSSMBQueryEA(const int xid, struct cifsTconInfo *tcon, |
5302 | const unsigned char *searchName, const unsigned char *ea_name, | |
5303 | unsigned char *ea_value, size_t buf_size, | |
737b758c | 5304 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
5305 | { |
5306 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
5307 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
5308 | int rc = 0; | |
5309 | int bytes_returned; | |
5310 | int name_len; | |
50c2f753 SF |
5311 | struct fea *temp_fea; |
5312 | char *temp_ptr; | |
1da177e4 LT |
5313 | __u16 params, byte_count; |
5314 | ||
5315 | cFYI(1, ("In Query EA path %s", searchName)); | |
5316 | QEARetry: | |
5317 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
5318 | (void **) &pSMBr); | |
5319 | if (rc) | |
5320 | return rc; | |
5321 | ||
5322 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
5323 | name_len = | |
50c2f753 | 5324 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 5325 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
5326 | name_len++; /* trailing null */ |
5327 | name_len *= 2; | |
5328 | } else { /* BB improve the check for buffer overruns BB */ | |
5329 | name_len = strnlen(searchName, PATH_MAX); | |
5330 | name_len++; /* trailing null */ | |
5331 | strncpy(pSMB->FileName, searchName, name_len); | |
5332 | } | |
5333 | ||
50c2f753 | 5334 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */; |
1da177e4 LT |
5335 | pSMB->TotalDataCount = 0; |
5336 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
5337 | pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ | |
5338 | pSMB->MaxSetupCount = 0; | |
5339 | pSMB->Reserved = 0; | |
5340 | pSMB->Flags = 0; | |
5341 | pSMB->Timeout = 0; | |
5342 | pSMB->Reserved2 = 0; | |
5343 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 5344 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
1da177e4 LT |
5345 | pSMB->DataCount = 0; |
5346 | pSMB->DataOffset = 0; | |
5347 | pSMB->SetupCount = 1; | |
5348 | pSMB->Reserved3 = 0; | |
5349 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
5350 | byte_count = params + 1 /* pad */ ; | |
5351 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
5352 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
5353 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_QUERY_ALL_EAS); | |
5354 | pSMB->Reserved4 = 0; | |
5355 | pSMB->hdr.smb_buf_length += byte_count; | |
5356 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
5357 | ||
5358 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
5359 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
5360 | if (rc) { | |
5361 | cFYI(1, ("Send error in Query EA = %d", rc)); | |
5362 | } else { /* decode response */ | |
5363 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
5364 | ||
5365 | /* BB also check enough total bytes returned */ | |
5366 | /* BB we need to improve the validity checking | |
5367 | of these trans2 responses */ | |
50c2f753 | 5368 | if (rc || (pSMBr->ByteCount < 4)) |
1da177e4 LT |
5369 | rc = -EIO; /* bad smb */ |
5370 | /* else if (pFindData){ | |
5371 | memcpy((char *) pFindData, | |
5372 | (char *) &pSMBr->hdr.Protocol + | |
5373 | data_offset, kl); | |
5374 | }*/ else { | |
5375 | /* check that length of list is not more than bcc */ | |
5376 | /* check that each entry does not go beyond length | |
5377 | of list */ | |
5378 | /* check that each element of each entry does not | |
5379 | go beyond end of list */ | |
5380 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
50c2f753 | 5381 | struct fealist *ea_response_data; |
1da177e4 LT |
5382 | rc = -ENODATA; |
5383 | /* validate_trans2_offsets() */ | |
790fe579 | 5384 | /* BB check if start of smb + data_offset > &bcc+ bcc*/ |
1da177e4 LT |
5385 | ea_response_data = (struct fealist *) |
5386 | (((char *) &pSMBr->hdr.Protocol) + | |
5387 | data_offset); | |
5388 | name_len = le32_to_cpu(ea_response_data->list_len); | |
50c2f753 | 5389 | cFYI(1, ("ea length %d", name_len)); |
790fe579 | 5390 | if (name_len <= 8) { |
1da177e4 | 5391 | /* returned EA size zeroed at top of function */ |
50c2f753 | 5392 | cFYI(1, ("empty EA list returned from server")); |
1da177e4 LT |
5393 | } else { |
5394 | /* account for ea list len */ | |
5395 | name_len -= 4; | |
5396 | temp_fea = ea_response_data->list; | |
5397 | temp_ptr = (char *)temp_fea; | |
5398 | /* loop through checking if we have a matching | |
5399 | name and then return the associated value */ | |
50c2f753 | 5400 | while (name_len > 0) { |
1da177e4 LT |
5401 | __u16 value_len; |
5402 | name_len -= 4; | |
5403 | temp_ptr += 4; | |
50c2f753 SF |
5404 | value_len = |
5405 | le16_to_cpu(temp_fea->value_len); | |
5406 | /* BB validate that value_len falls within SMB, | |
5407 | even though maximum for name_len is 255 */ | |
790fe579 | 5408 | if (memcmp(temp_fea->name, ea_name, |
1da177e4 LT |
5409 | temp_fea->name_len) == 0) { |
5410 | /* found a match */ | |
5411 | rc = value_len; | |
5412 | /* account for prefix user. and trailing null */ | |
790fe579 | 5413 | if (rc <= (int)buf_size) { |
1da177e4 LT |
5414 | memcpy(ea_value, |
5415 | temp_fea->name+temp_fea->name_len+1, | |
5416 | rc); | |
50c2f753 SF |
5417 | /* ea values, unlike ea |
5418 | names, are not null | |
5419 | terminated */ | |
790fe579 | 5420 | } else if (buf_size == 0) { |
1da177e4 LT |
5421 | /* skip copy - calc size only */ |
5422 | } else { | |
50c2f753 | 5423 | /* stop before overrun buffer */ |
1da177e4 LT |
5424 | rc = -ERANGE; |
5425 | } | |
5426 | break; | |
5427 | } | |
5428 | name_len -= temp_fea->name_len; | |
5429 | temp_ptr += temp_fea->name_len; | |
5430 | /* account for trailing null */ | |
5431 | name_len--; | |
5432 | temp_ptr++; | |
5433 | name_len -= value_len; | |
5434 | temp_ptr += value_len; | |
50c2f753 SF |
5435 | /* No trailing null to account for in |
5436 | value_len. Go on to next EA */ | |
1da177e4 LT |
5437 | temp_fea = (struct fea *)temp_ptr; |
5438 | } | |
50c2f753 | 5439 | } |
1da177e4 LT |
5440 | } |
5441 | } | |
5442 | if (pSMB) | |
5443 | cifs_buf_release(pSMB); | |
5444 | if (rc == -EAGAIN) | |
5445 | goto QEARetry; | |
5446 | ||
5447 | return (ssize_t)rc; | |
5448 | } | |
5449 | ||
5450 | int | |
5451 | CIFSSMBSetEA(const int xid, struct cifsTconInfo *tcon, const char *fileName, | |
50c2f753 SF |
5452 | const char *ea_name, const void *ea_value, |
5453 | const __u16 ea_value_len, const struct nls_table *nls_codepage, | |
5454 | int remap) | |
1da177e4 LT |
5455 | { |
5456 | struct smb_com_transaction2_spi_req *pSMB = NULL; | |
5457 | struct smb_com_transaction2_spi_rsp *pSMBr = NULL; | |
5458 | struct fealist *parm_data; | |
5459 | int name_len; | |
5460 | int rc = 0; | |
5461 | int bytes_returned = 0; | |
5462 | __u16 params, param_offset, byte_count, offset, count; | |
5463 | ||
5464 | cFYI(1, ("In SetEA")); | |
5465 | SetEARetry: | |
5466 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
5467 | (void **) &pSMBr); | |
5468 | if (rc) | |
5469 | return rc; | |
5470 | ||
5471 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
5472 | name_len = | |
50c2f753 | 5473 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 5474 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
5475 | name_len++; /* trailing null */ |
5476 | name_len *= 2; | |
50c2f753 | 5477 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
5478 | name_len = strnlen(fileName, PATH_MAX); |
5479 | name_len++; /* trailing null */ | |
5480 | strncpy(pSMB->FileName, fileName, name_len); | |
5481 | } | |
5482 | ||
5483 | params = 6 + name_len; | |
5484 | ||
5485 | /* done calculating parms using name_len of file name, | |
5486 | now use name_len to calculate length of ea name | |
5487 | we are going to create in the inode xattrs */ | |
790fe579 | 5488 | if (ea_name == NULL) |
1da177e4 LT |
5489 | name_len = 0; |
5490 | else | |
50c2f753 | 5491 | name_len = strnlen(ea_name, 255); |
1da177e4 LT |
5492 | |
5493 | count = sizeof(*parm_data) + ea_value_len + name_len + 1; | |
5494 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
5495 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB size from sess */ | |
5496 | pSMB->MaxSetupCount = 0; | |
5497 | pSMB->Reserved = 0; | |
5498 | pSMB->Flags = 0; | |
5499 | pSMB->Timeout = 0; | |
5500 | pSMB->Reserved2 = 0; | |
5501 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 5502 | InformationLevel) - 4; |
1da177e4 LT |
5503 | offset = param_offset + params; |
5504 | pSMB->InformationLevel = | |
5505 | cpu_to_le16(SMB_SET_FILE_EA); | |
5506 | ||
5507 | parm_data = | |
5508 | (struct fealist *) (((char *) &pSMB->hdr.Protocol) + | |
5509 | offset); | |
5510 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
5511 | pSMB->DataOffset = cpu_to_le16(offset); | |
5512 | pSMB->SetupCount = 1; | |
5513 | pSMB->Reserved3 = 0; | |
5514 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
5515 | byte_count = 3 /* pad */ + params + count; | |
5516 | pSMB->DataCount = cpu_to_le16(count); | |
5517 | parm_data->list_len = cpu_to_le32(count); | |
5518 | parm_data->list[0].EA_flags = 0; | |
5519 | /* we checked above that name len is less than 255 */ | |
53b3531b | 5520 | parm_data->list[0].name_len = (__u8)name_len; |
1da177e4 | 5521 | /* EA names are always ASCII */ |
790fe579 | 5522 | if (ea_name) |
50c2f753 | 5523 | strncpy(parm_data->list[0].name, ea_name, name_len); |
1da177e4 LT |
5524 | parm_data->list[0].name[name_len] = 0; |
5525 | parm_data->list[0].value_len = cpu_to_le16(ea_value_len); | |
5526 | /* caller ensures that ea_value_len is less than 64K but | |
5527 | we need to ensure that it fits within the smb */ | |
5528 | ||
50c2f753 SF |
5529 | /*BB add length check to see if it would fit in |
5530 | negotiated SMB buffer size BB */ | |
790fe579 SF |
5531 | /* if (ea_value_len > buffer_size - 512 (enough for header)) */ |
5532 | if (ea_value_len) | |
50c2f753 SF |
5533 | memcpy(parm_data->list[0].name+name_len+1, |
5534 | ea_value, ea_value_len); | |
1da177e4 LT |
5535 | |
5536 | pSMB->TotalDataCount = pSMB->DataCount; | |
5537 | pSMB->ParameterCount = cpu_to_le16(params); | |
5538 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
5539 | pSMB->Reserved4 = 0; | |
5540 | pSMB->hdr.smb_buf_length += byte_count; | |
5541 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
5542 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
5543 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
5544 | if (rc) { | |
5545 | cFYI(1, ("SetPathInfo (EA) returned %d", rc)); | |
5546 | } | |
5547 | ||
5548 | cifs_buf_release(pSMB); | |
5549 | ||
5550 | if (rc == -EAGAIN) | |
5551 | goto SetEARetry; | |
5552 | ||
5553 | return rc; | |
5554 | } | |
5555 | ||
5556 | #endif |