]>
Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * fs/cifs/cifssmb.c | |
3 | * | |
12b3b8ff | 4 | * Copyright (C) International Business Machines Corp., 2002,2006 |
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 */ | |
27 | /* treated slightly different for reconnection purposes since we never want */ | |
28 | /* to reuse a stale file handle and the caller knows the file handle */ | |
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 */ |
1da177e4 | 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 */ |
1da177e4 LT |
64 | {CIFS_PROT, "\2NT LM 0.12"}, |
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 */ | |
87 | static void mark_open_files_invalid(struct cifsTconInfo * pTcon) | |
88 | { | |
89 | struct cifsFileInfo *open_file = NULL; | |
90 | struct list_head * tmp; | |
91 | struct list_head * tmp1; | |
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) { | |
96 | open_file = list_entry(tmp,struct cifsFileInfo, tlist); | |
97 | if(open_file) { | |
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 */ | |
116 | if(tcon) { | |
6ab16d24 SF |
117 | if(tcon->tidStatus == CifsExiting) { |
118 | /* only tree disconnect, open, and write, | |
119 | (and ulogoff which does not have tcon) | |
120 | are allowed as we start force umount */ | |
121 | if((smb_command != SMB_COM_WRITE_ANDX) && | |
122 | (smb_command != SMB_COM_OPEN_ANDX) && | |
123 | (smb_command != SMB_COM_TREE_DISCONNECT)) { | |
124 | cFYI(1,("can not send cmd %d while umounting", | |
125 | smb_command)); | |
126 | return -ENODEV; | |
127 | } | |
128 | } | |
31ca3bc3 SF |
129 | if((tcon->ses) && (tcon->ses->status != CifsExiting) && |
130 | (tcon->ses->server)){ | |
1da177e4 LT |
131 | struct nls_table *nls_codepage; |
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); | |
138 | if(tcon->ses->server->tcpStatus == CifsNeedReconnect) { | |
139 | /* on "soft" mounts we wait once */ | |
140 | if((tcon->retry == FALSE) || | |
141 | (tcon->ses->status == CifsExiting)) { | |
142 | cFYI(1,("gave up waiting on reconnect in smb_init")); | |
143 | return -EHOSTDOWN; | |
09d1db5c SF |
144 | } /* else "hard" mount - keep retrying |
145 | until process is killed or server | |
146 | comes back on-line */ | |
1da177e4 LT |
147 | } else /* TCP session is reestablished now */ |
148 | break; | |
149 | ||
150 | } | |
151 | ||
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); | |
156 | if(tcon->ses->status == CifsNeedReconnect) | |
09d1db5c SF |
157 | rc = cifs_setup_session(0, tcon->ses, |
158 | nls_codepage); | |
1da177e4 LT |
159 | if(!rc && (tcon->tidStatus == CifsNeedReconnect)) { |
160 | mark_open_files_invalid(tcon); | |
09d1db5c SF |
161 | rc = CIFSTCon(0, tcon->ses, tcon->treeName, tcon |
162 | , nls_codepage); | |
1da177e4 | 163 | up(&tcon->ses->sesSem); |
3e84469d SF |
164 | /* BB FIXME add code to check if wsize needs |
165 | update due to negotiated smb buffer size | |
166 | shrinking */ | |
1da177e4 LT |
167 | if(rc == 0) |
168 | atomic_inc(&tconInfoReconnectCount); | |
169 | ||
170 | cFYI(1, ("reconnect tcon rc = %d", rc)); | |
171 | /* Removed call to reopen open files here - | |
09d1db5c SF |
172 | it is safer (and faster) to reopen files |
173 | one at a time as needed in read and write */ | |
1da177e4 LT |
174 | |
175 | /* Check if handle based operation so we | |
09d1db5c SF |
176 | know whether we can continue or not without |
177 | returning to caller to reset file handle */ | |
1da177e4 LT |
178 | switch(smb_command) { |
179 | case SMB_COM_READ_ANDX: | |
180 | case SMB_COM_WRITE_ANDX: | |
181 | case SMB_COM_CLOSE: | |
182 | case SMB_COM_FIND_CLOSE2: | |
183 | case SMB_COM_LOCKING_ANDX: { | |
184 | unload_nls(nls_codepage); | |
185 | return -EAGAIN; | |
186 | } | |
187 | } | |
188 | } else { | |
189 | up(&tcon->ses->sesSem); | |
190 | } | |
191 | unload_nls(nls_codepage); | |
192 | ||
193 | } else { | |
194 | return -EIO; | |
195 | } | |
196 | } | |
197 | if(rc) | |
198 | return rc; | |
199 | ||
200 | *request_buf = cifs_small_buf_get(); | |
201 | if (*request_buf == NULL) { | |
202 | /* BB should we add a retry in here if not a writepage? */ | |
203 | return -ENOMEM; | |
204 | } | |
205 | ||
206 | header_assemble((struct smb_hdr *) *request_buf, smb_command, tcon,wct); | |
207 | ||
a4544347 SF |
208 | if(tcon != NULL) |
209 | cifs_stats_inc(&tcon->num_smbs_sent); | |
210 | ||
1da177e4 | 211 | return rc; |
5815449d SF |
212 | } |
213 | ||
12b3b8ff | 214 | int |
5815449d SF |
215 | small_smb_init_no_tc(const int smb_command, const int wct, |
216 | struct cifsSesInfo *ses, void **request_buf) | |
12b3b8ff SF |
217 | { |
218 | int rc; | |
219 | struct smb_hdr * buffer; | |
220 | ||
5815449d | 221 | rc = small_smb_init(smb_command, wct, NULL, request_buf); |
12b3b8ff SF |
222 | if(rc) |
223 | return rc; | |
224 | ||
04fdabe1 | 225 | buffer = (struct smb_hdr *)*request_buf; |
12b3b8ff SF |
226 | buffer->Mid = GetNextMid(ses->server); |
227 | if (ses->capabilities & CAP_UNICODE) | |
228 | buffer->Flags2 |= SMBFLG2_UNICODE; | |
04fdabe1 | 229 | if (ses->capabilities & CAP_STATUS32) |
12b3b8ff SF |
230 | buffer->Flags2 |= SMBFLG2_ERR_STATUS; |
231 | ||
232 | /* uid, tid can stay at zero as set in header assemble */ | |
233 | ||
234 | /* BB add support for turning on the signing when | |
235 | this function is used after 1st of session setup requests */ | |
236 | ||
237 | return rc; | |
238 | } | |
1da177e4 LT |
239 | |
240 | /* If the return code is zero, this function must fill in request_buf pointer */ | |
241 | static int | |
242 | smb_init(int smb_command, int wct, struct cifsTconInfo *tcon, | |
243 | void **request_buf /* returned */ , | |
244 | void **response_buf /* returned */ ) | |
245 | { | |
246 | int rc = 0; | |
247 | ||
248 | /* SMBs NegProt, SessSetup, uLogoff do not have tcon yet so | |
249 | check for tcp and smb session status done differently | |
250 | for those three - in the calling routine */ | |
251 | if(tcon) { | |
6ab16d24 SF |
252 | if(tcon->tidStatus == CifsExiting) { |
253 | /* only tree disconnect, open, and write, | |
254 | (and ulogoff which does not have tcon) | |
255 | are allowed as we start force umount */ | |
256 | if((smb_command != SMB_COM_WRITE_ANDX) && | |
257 | (smb_command != SMB_COM_OPEN_ANDX) && | |
258 | (smb_command != SMB_COM_TREE_DISCONNECT)) { | |
259 | cFYI(1,("can not send cmd %d while umounting", | |
260 | smb_command)); | |
261 | return -ENODEV; | |
262 | } | |
263 | } | |
264 | ||
31ca3bc3 SF |
265 | if((tcon->ses) && (tcon->ses->status != CifsExiting) && |
266 | (tcon->ses->server)){ | |
1da177e4 | 267 | struct nls_table *nls_codepage; |
09d1db5c SF |
268 | /* Give Demultiplex thread up to 10 seconds to |
269 | reconnect, should be greater than cifs socket | |
270 | timeout which is 7 seconds */ | |
1da177e4 LT |
271 | while(tcon->ses->server->tcpStatus == CifsNeedReconnect) { |
272 | wait_event_interruptible_timeout(tcon->ses->server->response_q, | |
273 | (tcon->ses->server->tcpStatus == CifsGood), 10 * HZ); | |
09d1db5c SF |
274 | if(tcon->ses->server->tcpStatus == |
275 | CifsNeedReconnect) { | |
1da177e4 LT |
276 | /* on "soft" mounts we wait once */ |
277 | if((tcon->retry == FALSE) || | |
278 | (tcon->ses->status == CifsExiting)) { | |
279 | cFYI(1,("gave up waiting on reconnect in smb_init")); | |
280 | return -EHOSTDOWN; | |
09d1db5c SF |
281 | } /* else "hard" mount - keep retrying |
282 | until process is killed or server | |
283 | comes on-line */ | |
1da177e4 LT |
284 | } else /* TCP session is reestablished now */ |
285 | break; | |
286 | ||
287 | } | |
288 | ||
289 | nls_codepage = load_nls_default(); | |
290 | /* need to prevent multiple threads trying to | |
291 | simultaneously reconnect the same SMB session */ | |
292 | down(&tcon->ses->sesSem); | |
293 | if(tcon->ses->status == CifsNeedReconnect) | |
09d1db5c SF |
294 | rc = cifs_setup_session(0, tcon->ses, |
295 | nls_codepage); | |
1da177e4 LT |
296 | if(!rc && (tcon->tidStatus == CifsNeedReconnect)) { |
297 | mark_open_files_invalid(tcon); | |
09d1db5c SF |
298 | rc = CIFSTCon(0, tcon->ses, tcon->treeName, |
299 | tcon, nls_codepage); | |
1da177e4 | 300 | up(&tcon->ses->sesSem); |
3e84469d SF |
301 | /* BB FIXME add code to check if wsize needs |
302 | update due to negotiated smb buffer size | |
303 | shrinking */ | |
1da177e4 LT |
304 | if(rc == 0) |
305 | atomic_inc(&tconInfoReconnectCount); | |
306 | ||
307 | cFYI(1, ("reconnect tcon rc = %d", rc)); | |
308 | /* Removed call to reopen open files here - | |
09d1db5c SF |
309 | it is safer (and faster) to reopen files |
310 | one at a time as needed in read and write */ | |
1da177e4 LT |
311 | |
312 | /* Check if handle based operation so we | |
09d1db5c SF |
313 | know whether we can continue or not without |
314 | returning to caller to reset file handle */ | |
1da177e4 LT |
315 | switch(smb_command) { |
316 | case SMB_COM_READ_ANDX: | |
317 | case SMB_COM_WRITE_ANDX: | |
318 | case SMB_COM_CLOSE: | |
319 | case SMB_COM_FIND_CLOSE2: | |
320 | case SMB_COM_LOCKING_ANDX: { | |
321 | unload_nls(nls_codepage); | |
322 | return -EAGAIN; | |
323 | } | |
324 | } | |
325 | } else { | |
326 | up(&tcon->ses->sesSem); | |
327 | } | |
328 | unload_nls(nls_codepage); | |
329 | ||
330 | } else { | |
331 | return -EIO; | |
332 | } | |
333 | } | |
334 | if(rc) | |
335 | return rc; | |
336 | ||
337 | *request_buf = cifs_buf_get(); | |
338 | if (*request_buf == NULL) { | |
339 | /* BB should we add a retry in here if not a writepage? */ | |
340 | return -ENOMEM; | |
341 | } | |
342 | /* Although the original thought was we needed the response buf for */ | |
343 | /* potential retries of smb operations it turns out we can determine */ | |
344 | /* from the mid flags when the request buffer can be resent without */ | |
345 | /* having to use a second distinct buffer for the response */ | |
3979877e SF |
346 | if(response_buf) |
347 | *response_buf = *request_buf; | |
1da177e4 LT |
348 | |
349 | header_assemble((struct smb_hdr *) *request_buf, smb_command, tcon, | |
350 | wct /*wct */ ); | |
351 | ||
a4544347 SF |
352 | if(tcon != NULL) |
353 | cifs_stats_inc(&tcon->num_smbs_sent); | |
354 | ||
1da177e4 LT |
355 | return rc; |
356 | } | |
357 | ||
358 | static int validate_t2(struct smb_t2_rsp * pSMB) | |
359 | { | |
360 | int rc = -EINVAL; | |
361 | int total_size; | |
362 | char * pBCC; | |
363 | ||
364 | /* check for plausible wct, bcc and t2 data and parm sizes */ | |
365 | /* check for parm and data offset going beyond end of smb */ | |
366 | if(pSMB->hdr.WordCount >= 10) { | |
367 | if((le16_to_cpu(pSMB->t2_rsp.ParameterOffset) <= 1024) && | |
368 | (le16_to_cpu(pSMB->t2_rsp.DataOffset) <= 1024)) { | |
369 | /* check that bcc is at least as big as parms + data */ | |
370 | /* check that bcc is less than negotiated smb buffer */ | |
371 | total_size = le16_to_cpu(pSMB->t2_rsp.ParameterCount); | |
372 | if(total_size < 512) { | |
373 | total_size+=le16_to_cpu(pSMB->t2_rsp.DataCount); | |
374 | /* BCC le converted in SendReceive */ | |
09d1db5c SF |
375 | pBCC = (pSMB->hdr.WordCount * 2) + |
376 | sizeof(struct smb_hdr) + | |
1da177e4 LT |
377 | (char *)pSMB; |
378 | if((total_size <= (*(u16 *)pBCC)) && | |
379 | (total_size < | |
380 | CIFSMaxBufSize+MAX_CIFS_HDR_SIZE)) { | |
381 | return 0; | |
382 | } | |
383 | ||
384 | } | |
385 | } | |
386 | } | |
387 | cifs_dump_mem("Invalid transact2 SMB: ",(char *)pSMB, | |
388 | sizeof(struct smb_t2_rsp) + 16); | |
389 | return rc; | |
390 | } | |
391 | int | |
392 | CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) | |
393 | { | |
394 | NEGOTIATE_REQ *pSMB; | |
395 | NEGOTIATE_RSP *pSMBr; | |
396 | int rc = 0; | |
397 | int bytes_returned; | |
3979877e | 398 | int i; |
1da177e4 LT |
399 | struct TCP_Server_Info * server; |
400 | u16 count; | |
750d1151 | 401 | unsigned int secFlags; |
733f99ac | 402 | u16 dialect; |
1da177e4 LT |
403 | |
404 | if(ses->server) | |
405 | server = ses->server; | |
406 | else { | |
407 | rc = -EIO; | |
408 | return rc; | |
409 | } | |
410 | rc = smb_init(SMB_COM_NEGOTIATE, 0, NULL /* no tcon yet */ , | |
411 | (void **) &pSMB, (void **) &pSMBr); | |
412 | if (rc) | |
413 | return rc; | |
750d1151 SF |
414 | |
415 | /* if any of auth flags (ie not sign or seal) are overriden use them */ | |
416 | if(ses->overrideSecFlg & (~(CIFSSEC_MUST_SIGN | CIFSSEC_MUST_SEAL))) | |
417 | secFlags = ses->overrideSecFlg; | |
418 | else /* if override flags set only sign/seal OR them with global auth */ | |
419 | secFlags = extended_security | ses->overrideSecFlg; | |
420 | ||
f40c5628 SF |
421 | cFYI(1,("secFlags 0x%x",secFlags)); |
422 | ||
1982c344 | 423 | pSMB->hdr.Mid = GetNextMid(server); |
1da177e4 | 424 | pSMB->hdr.Flags2 |= SMBFLG2_UNICODE; |
750d1151 | 425 | if((secFlags & CIFSSEC_MUST_KRB5) == CIFSSEC_MUST_KRB5) |
254e55ed | 426 | pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC; |
3979877e SF |
427 | |
428 | count = 0; | |
429 | for(i=0;i<CIFS_NUM_PROT;i++) { | |
430 | strncpy(pSMB->DialectsArray+count, protocols[i].name, 16); | |
431 | count += strlen(protocols[i].name) + 1; | |
432 | /* null at end of source and target buffers anyway */ | |
433 | } | |
1da177e4 LT |
434 | pSMB->hdr.smb_buf_length += count; |
435 | pSMB->ByteCount = cpu_to_le16(count); | |
436 | ||
437 | rc = SendReceive(xid, ses, (struct smb_hdr *) pSMB, | |
438 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
254e55ed SF |
439 | if (rc != 0) |
440 | goto neg_err_exit; | |
441 | ||
733f99ac AV |
442 | dialect = le16_to_cpu(pSMBr->DialectIndex); |
443 | cFYI(1,("Dialect: %d", dialect)); | |
254e55ed | 444 | /* Check wct = 1 error case */ |
733f99ac | 445 | if((pSMBr->hdr.WordCount < 13) || (dialect == BAD_PROT)) { |
254e55ed SF |
446 | /* core returns wct = 1, but we do not ask for core - otherwise |
447 | small wct just comes when dialect index is -1 indicating we | |
448 | could not negotiate a common dialect */ | |
449 | rc = -EOPNOTSUPP; | |
450 | goto neg_err_exit; | |
451 | #ifdef CONFIG_CIFS_WEAK_PW_HASH | |
452 | } else if((pSMBr->hdr.WordCount == 13) | |
733f99ac AV |
453 | && ((dialect == LANMAN_PROT) |
454 | || (dialect == LANMAN2_PROT))) { | |
b815f1e5 | 455 | __s16 tmp; |
254e55ed SF |
456 | struct lanman_neg_rsp * rsp = (struct lanman_neg_rsp *)pSMBr; |
457 | ||
750d1151 SF |
458 | if((secFlags & CIFSSEC_MAY_LANMAN) || |
459 | (secFlags & CIFSSEC_MAY_PLNTXT)) | |
254e55ed SF |
460 | server->secType = LANMAN; |
461 | else { | |
462 | cERROR(1, ("mount failed weak security disabled" | |
463 | " in /proc/fs/cifs/SecurityFlags")); | |
3979877e SF |
464 | rc = -EOPNOTSUPP; |
465 | goto neg_err_exit; | |
254e55ed SF |
466 | } |
467 | server->secMode = (__u8)le16_to_cpu(rsp->SecurityMode); | |
468 | server->maxReq = le16_to_cpu(rsp->MaxMpxCount); | |
469 | server->maxBuf = min((__u32)le16_to_cpu(rsp->MaxBufSize), | |
3979877e | 470 | (__u32)CIFSMaxBufSize + MAX_CIFS_HDR_SIZE); |
254e55ed SF |
471 | GETU32(server->sessid) = le32_to_cpu(rsp->SessionKey); |
472 | /* even though we do not use raw we might as well set this | |
473 | accurately, in case we ever find a need for it */ | |
474 | if((le16_to_cpu(rsp->RawMode) & RAW_ENABLE) == RAW_ENABLE) { | |
475 | server->maxRw = 0xFF00; | |
476 | server->capabilities = CAP_MPX_MODE | CAP_RAW_MODE; | |
477 | } else { | |
478 | server->maxRw = 0;/* we do not need to use raw anyway */ | |
479 | server->capabilities = CAP_MPX_MODE; | |
480 | } | |
b815f1e5 | 481 | tmp = (__s16)le16_to_cpu(rsp->ServerTimeZone); |
1a70d652 | 482 | if (tmp == -1) { |
25ee4a98 SF |
483 | /* OS/2 often does not set timezone therefore |
484 | * we must use server time to calc time zone. | |
b815f1e5 SF |
485 | * Could deviate slightly from the right zone. |
486 | * Smallest defined timezone difference is 15 minutes | |
487 | * (i.e. Nepal). Rounding up/down is done to match | |
488 | * this requirement. | |
25ee4a98 | 489 | */ |
b815f1e5 | 490 | int val, seconds, remain, result; |
25ee4a98 SF |
491 | struct timespec ts, utc; |
492 | utc = CURRENT_TIME; | |
493 | ts = cnvrtDosUnixTm(le16_to_cpu(rsp->SrvTime.Date), | |
494 | le16_to_cpu(rsp->SrvTime.Time)); | |
495 | cFYI(1,("SrvTime: %d sec since 1970 (utc: %d) diff: %d", | |
496 | (int)ts.tv_sec, (int)utc.tv_sec, | |
497 | (int)(utc.tv_sec - ts.tv_sec))); | |
b815f1e5 SF |
498 | val = (int)(utc.tv_sec - ts.tv_sec); |
499 | seconds = val < 0 ? -val : val; | |
947a5067 | 500 | result = (seconds / MIN_TZ_ADJ) * MIN_TZ_ADJ; |
b815f1e5 SF |
501 | remain = seconds % MIN_TZ_ADJ; |
502 | if(remain >= (MIN_TZ_ADJ / 2)) | |
503 | result += MIN_TZ_ADJ; | |
504 | if(val < 0) | |
505 | result = - result; | |
506 | server->timeAdj = result; | |
25ee4a98 | 507 | } else { |
b815f1e5 SF |
508 | server->timeAdj = (int)tmp; |
509 | server->timeAdj *= 60; /* also in seconds */ | |
25ee4a98 | 510 | } |
175ec9e1 | 511 | cFYI(1,("server->timeAdj: %d seconds", server->timeAdj)); |
25ee4a98 | 512 | |
3979877e | 513 | |
254e55ed SF |
514 | /* BB get server time for time conversions and add |
515 | code to use it and timezone since this is not UTC */ | |
3979877e | 516 | |
25ee4a98 SF |
517 | if (rsp->EncryptionKeyLength == |
518 | cpu_to_le16(CIFS_CRYPTO_KEY_SIZE)) { | |
254e55ed SF |
519 | memcpy(server->cryptKey, rsp->EncryptionKey, |
520 | CIFS_CRYPTO_KEY_SIZE); | |
521 | } else if (server->secMode & SECMODE_PW_ENCRYPT) { | |
522 | rc = -EIO; /* need cryptkey unless plain text */ | |
523 | goto neg_err_exit; | |
524 | } | |
3979877e | 525 | |
254e55ed SF |
526 | cFYI(1,("LANMAN negotiated")); |
527 | /* we will not end up setting signing flags - as no signing | |
528 | was in LANMAN and server did not return the flags on */ | |
529 | goto signing_check; | |
7c7b25bc | 530 | #else /* weak security disabled */ |
254e55ed SF |
531 | } else if(pSMBr->hdr.WordCount == 13) { |
532 | cERROR(1,("mount failed, cifs module not built " | |
533 | "with CIFS_WEAK_PW_HASH support")); | |
7c7b25bc SF |
534 | rc = -EOPNOTSUPP; |
535 | #endif /* WEAK_PW_HASH */ | |
254e55ed SF |
536 | goto neg_err_exit; |
537 | } else if(pSMBr->hdr.WordCount != 17) { | |
538 | /* unknown wct */ | |
539 | rc = -EOPNOTSUPP; | |
540 | goto neg_err_exit; | |
541 | } | |
542 | /* else wct == 17 NTLM */ | |
543 | server->secMode = pSMBr->SecurityMode; | |
544 | if((server->secMode & SECMODE_USER) == 0) | |
545 | cFYI(1,("share mode security")); | |
bdc4bf6e | 546 | |
254e55ed | 547 | if((server->secMode & SECMODE_PW_ENCRYPT) == 0) |
bdc4bf6e | 548 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
750d1151 | 549 | if ((secFlags & CIFSSEC_MAY_PLNTXT) == 0) |
bdc4bf6e | 550 | #endif /* CIFS_WEAK_PW_HASH */ |
254e55ed SF |
551 | cERROR(1,("Server requests plain text password" |
552 | " but client support disabled")); | |
9312f675 | 553 | |
f40c5628 | 554 | if((secFlags & CIFSSEC_MUST_NTLMV2) == CIFSSEC_MUST_NTLMV2) |
254e55ed | 555 | server->secType = NTLMv2; |
f40c5628 | 556 | else if(secFlags & CIFSSEC_MAY_NTLM) |
254e55ed | 557 | server->secType = NTLM; |
f40c5628 SF |
558 | else if(secFlags & CIFSSEC_MAY_NTLMV2) |
559 | server->secType = NTLMv2; | |
560 | /* else krb5 ... any others ... */ | |
254e55ed SF |
561 | |
562 | /* one byte, so no need to convert this or EncryptionKeyLen from | |
563 | little endian */ | |
564 | server->maxReq = le16_to_cpu(pSMBr->MaxMpxCount); | |
565 | /* probably no need to store and check maxvcs */ | |
566 | server->maxBuf = min(le32_to_cpu(pSMBr->MaxBufferSize), | |
1da177e4 | 567 | (__u32) CIFSMaxBufSize + MAX_CIFS_HDR_SIZE); |
254e55ed SF |
568 | server->maxRw = le32_to_cpu(pSMBr->MaxRawSize); |
569 | cFYI(0, ("Max buf = %d", ses->server->maxBuf)); | |
570 | GETU32(ses->server->sessid) = le32_to_cpu(pSMBr->SessionKey); | |
571 | server->capabilities = le32_to_cpu(pSMBr->Capabilities); | |
b815f1e5 SF |
572 | server->timeAdj = (int)(__s16)le16_to_cpu(pSMBr->ServerTimeZone); |
573 | server->timeAdj *= 60; | |
254e55ed SF |
574 | if (pSMBr->EncryptionKeyLength == CIFS_CRYPTO_KEY_SIZE) { |
575 | memcpy(server->cryptKey, pSMBr->u.EncryptionKey, | |
576 | CIFS_CRYPTO_KEY_SIZE); | |
577 | } else if ((pSMBr->hdr.Flags2 & SMBFLG2_EXT_SEC) | |
578 | && (pSMBr->EncryptionKeyLength == 0)) { | |
579 | /* decode security blob */ | |
580 | } else if (server->secMode & SECMODE_PW_ENCRYPT) { | |
581 | rc = -EIO; /* no crypt key only if plain text pwd */ | |
582 | goto neg_err_exit; | |
583 | } | |
1da177e4 | 584 | |
254e55ed SF |
585 | /* BB might be helpful to save off the domain of server here */ |
586 | ||
587 | if ((pSMBr->hdr.Flags2 & SMBFLG2_EXT_SEC) && | |
588 | (server->capabilities & CAP_EXTENDED_SECURITY)) { | |
589 | count = pSMBr->ByteCount; | |
590 | if (count < 16) | |
591 | rc = -EIO; | |
592 | else if (count == 16) { | |
593 | server->secType = RawNTLMSSP; | |
594 | if (server->socketUseCount.counter > 1) { | |
595 | if (memcmp(server->server_GUID, | |
596 | pSMBr->u.extended_response. | |
597 | GUID, 16) != 0) { | |
598 | cFYI(1, ("server UID changed")); | |
1da177e4 | 599 | memcpy(server->server_GUID, |
254e55ed SF |
600 | pSMBr->u.extended_response.GUID, |
601 | 16); | |
1da177e4 | 602 | } |
254e55ed SF |
603 | } else |
604 | memcpy(server->server_GUID, | |
605 | pSMBr->u.extended_response.GUID, 16); | |
606 | } else { | |
607 | rc = decode_negTokenInit(pSMBr->u.extended_response. | |
608 | SecurityBlob, | |
609 | count - 16, | |
610 | &server->secType); | |
611 | if(rc == 1) { | |
612 | /* BB Need to fill struct for sessetup here */ | |
613 | rc = -EOPNOTSUPP; | |
614 | } else { | |
615 | rc = -EINVAL; | |
1da177e4 | 616 | } |
1da177e4 | 617 | } |
254e55ed SF |
618 | } else |
619 | server->capabilities &= ~CAP_EXTENDED_SECURITY; | |
620 | ||
6344a423 | 621 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
254e55ed | 622 | signing_check: |
6344a423 | 623 | #endif |
254e55ed SF |
624 | if(sign_CIFS_PDUs == FALSE) { |
625 | if(server->secMode & SECMODE_SIGN_REQUIRED) | |
626 | cERROR(1,("Server requires " | |
627 | "/proc/fs/cifs/PacketSigningEnabled to be on")); | |
628 | server->secMode &= | |
629 | ~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED); | |
630 | } else if(sign_CIFS_PDUs == 1) { | |
631 | if((server->secMode & SECMODE_SIGN_REQUIRED) == 0) | |
632 | server->secMode &= | |
633 | ~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED); | |
634 | } else if(sign_CIFS_PDUs == 2) { | |
635 | if((server->secMode & | |
636 | (SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED)) == 0) { | |
637 | cERROR(1,("signing required but server lacks support")); | |
638 | } | |
1da177e4 | 639 | } |
3979877e | 640 | neg_err_exit: |
4a6d87f1 | 641 | cifs_buf_release(pSMB); |
254e55ed SF |
642 | |
643 | cFYI(1,("negprot rc %d",rc)); | |
1da177e4 LT |
644 | return rc; |
645 | } | |
646 | ||
647 | int | |
648 | CIFSSMBTDis(const int xid, struct cifsTconInfo *tcon) | |
649 | { | |
650 | struct smb_hdr *smb_buffer; | |
651 | struct smb_hdr *smb_buffer_response; /* BB removeme BB */ | |
652 | int rc = 0; | |
653 | int length; | |
654 | ||
655 | cFYI(1, ("In tree disconnect")); | |
656 | /* | |
657 | * If last user of the connection and | |
658 | * connection alive - disconnect it | |
659 | * If this is the last connection on the server session disconnect it | |
660 | * (and inside session disconnect we should check if tcp socket needs | |
661 | * to be freed and kernel thread woken up). | |
662 | */ | |
663 | if (tcon) | |
664 | down(&tcon->tconSem); | |
665 | else | |
666 | return -EIO; | |
667 | ||
668 | atomic_dec(&tcon->useCount); | |
669 | if (atomic_read(&tcon->useCount) > 0) { | |
670 | up(&tcon->tconSem); | |
671 | return -EBUSY; | |
672 | } | |
673 | ||
674 | /* No need to return error on this operation if tid invalidated and | |
675 | closed on server already e.g. due to tcp session crashing */ | |
676 | if(tcon->tidStatus == CifsNeedReconnect) { | |
677 | up(&tcon->tconSem); | |
678 | return 0; | |
679 | } | |
680 | ||
681 | if((tcon->ses == NULL) || (tcon->ses->server == NULL)) { | |
682 | up(&tcon->tconSem); | |
683 | return -EIO; | |
684 | } | |
09d1db5c SF |
685 | rc = small_smb_init(SMB_COM_TREE_DISCONNECT, 0, tcon, |
686 | (void **)&smb_buffer); | |
1da177e4 LT |
687 | if (rc) { |
688 | up(&tcon->tconSem); | |
689 | return rc; | |
690 | } else { | |
691 | smb_buffer_response = smb_buffer; /* BB removeme BB */ | |
cd63499c | 692 | } |
1da177e4 LT |
693 | rc = SendReceive(xid, tcon->ses, smb_buffer, smb_buffer_response, |
694 | &length, 0); | |
695 | if (rc) | |
966ca923 | 696 | cFYI(1, ("Tree disconnect failed %d", rc)); |
1da177e4 LT |
697 | |
698 | if (smb_buffer) | |
699 | cifs_small_buf_release(smb_buffer); | |
700 | up(&tcon->tconSem); | |
701 | ||
702 | /* No need to return error on this operation if tid invalidated and | |
703 | closed on server already e.g. due to tcp session crashing */ | |
704 | if (rc == -EAGAIN) | |
705 | rc = 0; | |
706 | ||
707 | return rc; | |
708 | } | |
709 | ||
710 | int | |
711 | CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses) | |
712 | { | |
713 | struct smb_hdr *smb_buffer_response; | |
714 | LOGOFF_ANDX_REQ *pSMB; | |
715 | int rc = 0; | |
716 | int length; | |
717 | ||
718 | cFYI(1, ("In SMBLogoff for session disconnect")); | |
719 | if (ses) | |
720 | down(&ses->sesSem); | |
721 | else | |
722 | return -EIO; | |
723 | ||
724 | atomic_dec(&ses->inUse); | |
725 | if (atomic_read(&ses->inUse) > 0) { | |
726 | up(&ses->sesSem); | |
727 | return -EBUSY; | |
728 | } | |
729 | rc = small_smb_init(SMB_COM_LOGOFF_ANDX, 2, NULL, (void **)&pSMB); | |
730 | if (rc) { | |
731 | up(&ses->sesSem); | |
732 | return rc; | |
733 | } | |
734 | ||
735 | smb_buffer_response = (struct smb_hdr *)pSMB; /* BB removeme BB */ | |
736 | ||
737 | if(ses->server) { | |
1982c344 SF |
738 | pSMB->hdr.Mid = GetNextMid(ses->server); |
739 | ||
1da177e4 LT |
740 | if(ses->server->secMode & |
741 | (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) | |
742 | pSMB->hdr.Flags2 |= SMBFLG2_SECURITY_SIGNATURE; | |
743 | } | |
744 | ||
745 | pSMB->hdr.Uid = ses->Suid; | |
746 | ||
747 | pSMB->AndXCommand = 0xFF; | |
748 | rc = SendReceive(xid, ses, (struct smb_hdr *) pSMB, | |
749 | smb_buffer_response, &length, 0); | |
750 | if (ses->server) { | |
751 | atomic_dec(&ses->server->socketUseCount); | |
752 | if (atomic_read(&ses->server->socketUseCount) == 0) { | |
753 | spin_lock(&GlobalMid_Lock); | |
754 | ses->server->tcpStatus = CifsExiting; | |
755 | spin_unlock(&GlobalMid_Lock); | |
756 | rc = -ESHUTDOWN; | |
757 | } | |
758 | } | |
a59c6586 | 759 | up(&ses->sesSem); |
4a6d87f1 | 760 | cifs_small_buf_release(pSMB); |
1da177e4 LT |
761 | |
762 | /* if session dead then we do not need to do ulogoff, | |
763 | since server closed smb session, no sense reporting | |
764 | error */ | |
765 | if (rc == -EAGAIN) | |
766 | rc = 0; | |
767 | return rc; | |
768 | } | |
769 | ||
770 | int | |
737b758c SF |
771 | CIFSSMBDelFile(const int xid, struct cifsTconInfo *tcon, const char *fileName, |
772 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
773 | { |
774 | DELETE_FILE_REQ *pSMB = NULL; | |
775 | DELETE_FILE_RSP *pSMBr = NULL; | |
776 | int rc = 0; | |
777 | int bytes_returned; | |
778 | int name_len; | |
779 | ||
780 | DelFileRetry: | |
781 | rc = smb_init(SMB_COM_DELETE, 1, tcon, (void **) &pSMB, | |
782 | (void **) &pSMBr); | |
783 | if (rc) | |
784 | return rc; | |
785 | ||
786 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
787 | name_len = | |
b1a45695 | 788 | cifsConvertToUCS((__le16 *) pSMB->fileName, fileName, |
737b758c | 789 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
790 | name_len++; /* trailing null */ |
791 | name_len *= 2; | |
09d1db5c | 792 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
793 | name_len = strnlen(fileName, PATH_MAX); |
794 | name_len++; /* trailing null */ | |
795 | strncpy(pSMB->fileName, fileName, name_len); | |
796 | } | |
797 | pSMB->SearchAttributes = | |
798 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM); | |
799 | pSMB->BufferFormat = 0x04; | |
800 | pSMB->hdr.smb_buf_length += name_len + 1; | |
801 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
802 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
803 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 804 | cifs_stats_inc(&tcon->num_deletes); |
1da177e4 LT |
805 | if (rc) { |
806 | cFYI(1, ("Error in RMFile = %d", rc)); | |
807 | } | |
1da177e4 LT |
808 | |
809 | cifs_buf_release(pSMB); | |
810 | if (rc == -EAGAIN) | |
811 | goto DelFileRetry; | |
812 | ||
813 | return rc; | |
814 | } | |
815 | ||
816 | int | |
737b758c SF |
817 | CIFSSMBRmDir(const int xid, struct cifsTconInfo *tcon, const char *dirName, |
818 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
819 | { |
820 | DELETE_DIRECTORY_REQ *pSMB = NULL; | |
821 | DELETE_DIRECTORY_RSP *pSMBr = NULL; | |
822 | int rc = 0; | |
823 | int bytes_returned; | |
824 | int name_len; | |
825 | ||
826 | cFYI(1, ("In CIFSSMBRmDir")); | |
827 | RmDirRetry: | |
828 | rc = smb_init(SMB_COM_DELETE_DIRECTORY, 0, tcon, (void **) &pSMB, | |
829 | (void **) &pSMBr); | |
830 | if (rc) | |
831 | return rc; | |
832 | ||
833 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
737b758c SF |
834 | name_len = cifsConvertToUCS((__le16 *) pSMB->DirName, dirName, |
835 | PATH_MAX, nls_codepage, remap); | |
1da177e4 LT |
836 | name_len++; /* trailing null */ |
837 | name_len *= 2; | |
09d1db5c | 838 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
839 | name_len = strnlen(dirName, PATH_MAX); |
840 | name_len++; /* trailing null */ | |
841 | strncpy(pSMB->DirName, dirName, name_len); | |
842 | } | |
843 | ||
844 | pSMB->BufferFormat = 0x04; | |
845 | pSMB->hdr.smb_buf_length += name_len + 1; | |
846 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
847 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
848 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 849 | cifs_stats_inc(&tcon->num_rmdirs); |
1da177e4 LT |
850 | if (rc) { |
851 | cFYI(1, ("Error in RMDir = %d", rc)); | |
852 | } | |
1da177e4 LT |
853 | |
854 | cifs_buf_release(pSMB); | |
855 | if (rc == -EAGAIN) | |
856 | goto RmDirRetry; | |
857 | return rc; | |
858 | } | |
859 | ||
860 | int | |
861 | CIFSSMBMkDir(const int xid, struct cifsTconInfo *tcon, | |
737b758c | 862 | const char *name, const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
863 | { |
864 | int rc = 0; | |
865 | CREATE_DIRECTORY_REQ *pSMB = NULL; | |
866 | CREATE_DIRECTORY_RSP *pSMBr = NULL; | |
867 | int bytes_returned; | |
868 | int name_len; | |
869 | ||
870 | cFYI(1, ("In CIFSSMBMkDir")); | |
871 | MkDirRetry: | |
872 | rc = smb_init(SMB_COM_CREATE_DIRECTORY, 0, tcon, (void **) &pSMB, | |
873 | (void **) &pSMBr); | |
874 | if (rc) | |
875 | return rc; | |
876 | ||
877 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
b1a45695 | 878 | name_len = cifsConvertToUCS((__le16 *) pSMB->DirName, name, |
737b758c | 879 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
880 | name_len++; /* trailing null */ |
881 | name_len *= 2; | |
09d1db5c | 882 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
883 | name_len = strnlen(name, PATH_MAX); |
884 | name_len++; /* trailing null */ | |
885 | strncpy(pSMB->DirName, name, name_len); | |
886 | } | |
887 | ||
888 | pSMB->BufferFormat = 0x04; | |
889 | pSMB->hdr.smb_buf_length += name_len + 1; | |
890 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
891 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
892 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 893 | cifs_stats_inc(&tcon->num_mkdirs); |
1da177e4 LT |
894 | if (rc) { |
895 | cFYI(1, ("Error in Mkdir = %d", rc)); | |
896 | } | |
a5a2b489 | 897 | |
1da177e4 LT |
898 | cifs_buf_release(pSMB); |
899 | if (rc == -EAGAIN) | |
900 | goto MkDirRetry; | |
901 | return rc; | |
902 | } | |
903 | ||
a9d02ad4 SF |
904 | static __u16 convert_disposition(int disposition) |
905 | { | |
906 | __u16 ofun = 0; | |
907 | ||
908 | switch (disposition) { | |
909 | case FILE_SUPERSEDE: | |
910 | ofun = SMBOPEN_OCREATE | SMBOPEN_OTRUNC; | |
911 | break; | |
912 | case FILE_OPEN: | |
913 | ofun = SMBOPEN_OAPPEND; | |
914 | break; | |
915 | case FILE_CREATE: | |
916 | ofun = SMBOPEN_OCREATE; | |
917 | break; | |
918 | case FILE_OPEN_IF: | |
919 | ofun = SMBOPEN_OCREATE | SMBOPEN_OAPPEND; | |
920 | break; | |
921 | case FILE_OVERWRITE: | |
922 | ofun = SMBOPEN_OTRUNC; | |
923 | break; | |
924 | case FILE_OVERWRITE_IF: | |
925 | ofun = SMBOPEN_OCREATE | SMBOPEN_OTRUNC; | |
926 | break; | |
927 | default: | |
928 | cFYI(1,("unknown disposition %d",disposition)); | |
929 | ofun = SMBOPEN_OAPPEND; /* regular open */ | |
930 | } | |
931 | return ofun; | |
932 | } | |
933 | ||
934 | int | |
935 | SMBLegacyOpen(const int xid, struct cifsTconInfo *tcon, | |
936 | const char *fileName, const int openDisposition, | |
937 | const int access_flags, const int create_options, __u16 * netfid, | |
938 | int *pOplock, FILE_ALL_INFO * pfile_info, | |
939 | const struct nls_table *nls_codepage, int remap) | |
940 | { | |
941 | int rc = -EACCES; | |
942 | OPENX_REQ *pSMB = NULL; | |
943 | OPENX_RSP *pSMBr = NULL; | |
944 | int bytes_returned; | |
945 | int name_len; | |
946 | __u16 count; | |
947 | ||
948 | OldOpenRetry: | |
949 | rc = smb_init(SMB_COM_OPEN_ANDX, 15, tcon, (void **) &pSMB, | |
950 | (void **) &pSMBr); | |
951 | if (rc) | |
952 | return rc; | |
953 | ||
954 | pSMB->AndXCommand = 0xFF; /* none */ | |
955 | ||
956 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
957 | count = 1; /* account for one byte pad to word boundary */ | |
958 | name_len = | |
959 | cifsConvertToUCS((__le16 *) (pSMB->fileName + 1), | |
960 | fileName, PATH_MAX, nls_codepage, remap); | |
961 | name_len++; /* trailing null */ | |
962 | name_len *= 2; | |
963 | } else { /* BB improve check for buffer overruns BB */ | |
964 | count = 0; /* no pad */ | |
965 | name_len = strnlen(fileName, PATH_MAX); | |
966 | name_len++; /* trailing null */ | |
967 | strncpy(pSMB->fileName, fileName, name_len); | |
968 | } | |
969 | if (*pOplock & REQ_OPLOCK) | |
970 | pSMB->OpenFlags = cpu_to_le16(REQ_OPLOCK); | |
971 | else if (*pOplock & REQ_BATCHOPLOCK) { | |
972 | pSMB->OpenFlags = cpu_to_le16(REQ_BATCHOPLOCK); | |
973 | } | |
974 | pSMB->OpenFlags |= cpu_to_le16(REQ_MORE_INFO); | |
975 | /* BB fixme add conversion for access_flags to bits 0 - 2 of mode */ | |
976 | /* 0 = read | |
977 | 1 = write | |
978 | 2 = rw | |
979 | 3 = execute | |
980 | */ | |
981 | pSMB->Mode = cpu_to_le16(2); | |
982 | pSMB->Mode |= cpu_to_le16(0x40); /* deny none */ | |
983 | /* set file as system file if special file such | |
984 | as fifo and server expecting SFU style and | |
985 | no Unix extensions */ | |
986 | ||
987 | if(create_options & CREATE_OPTION_SPECIAL) | |
988 | pSMB->FileAttributes = cpu_to_le16(ATTR_SYSTEM); | |
989 | else | |
3e87d803 | 990 | pSMB->FileAttributes = cpu_to_le16(0/*ATTR_NORMAL*/); /* BB FIXME */ |
a9d02ad4 SF |
991 | |
992 | /* if ((omode & S_IWUGO) == 0) | |
993 | pSMB->FileAttributes |= cpu_to_le32(ATTR_READONLY);*/ | |
994 | /* Above line causes problems due to vfs splitting create into two | |
995 | pieces - need to set mode after file created not while it is | |
996 | being created */ | |
997 | ||
998 | /* BB FIXME BB */ | |
999 | /* pSMB->CreateOptions = cpu_to_le32(create_options & CREATE_OPTIONS_MASK); */ | |
1000 | /* BB FIXME END BB */ | |
3e87d803 SF |
1001 | |
1002 | pSMB->Sattr = cpu_to_le16(ATTR_HIDDEN | ATTR_SYSTEM | ATTR_DIRECTORY); | |
70ca734a | 1003 | pSMB->OpenFunction = cpu_to_le16(convert_disposition(openDisposition)); |
a9d02ad4 SF |
1004 | count += name_len; |
1005 | pSMB->hdr.smb_buf_length += count; | |
1006 | ||
1007 | pSMB->ByteCount = cpu_to_le16(count); | |
1008 | /* long_op set to 1 to allow for oplock break timeouts */ | |
1009 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1010 | (struct smb_hdr *) pSMBr, &bytes_returned, 1); | |
1011 | cifs_stats_inc(&tcon->num_opens); | |
1012 | if (rc) { | |
1013 | cFYI(1, ("Error in Open = %d", rc)); | |
1014 | } else { | |
1015 | /* BB verify if wct == 15 */ | |
1016 | ||
1017 | /* *pOplock = pSMBr->OplockLevel; */ /* BB take from action field BB */ | |
1018 | ||
1019 | *netfid = pSMBr->Fid; /* cifs fid stays in le */ | |
1020 | /* Let caller know file was created so we can set the mode. */ | |
1021 | /* Do we care about the CreateAction in any other cases? */ | |
1022 | /* BB FIXME BB */ | |
1023 | /* if(cpu_to_le32(FILE_CREATE) == pSMBr->CreateAction) | |
1024 | *pOplock |= CIFS_CREATE_ACTION; */ | |
1025 | /* BB FIXME END */ | |
1026 | ||
1027 | if(pfile_info) { | |
1028 | pfile_info->CreationTime = 0; /* BB convert CreateTime*/ | |
1029 | pfile_info->LastAccessTime = 0; /* BB fixme */ | |
1030 | pfile_info->LastWriteTime = 0; /* BB fixme */ | |
1031 | pfile_info->ChangeTime = 0; /* BB fixme */ | |
70ca734a SF |
1032 | pfile_info->Attributes = |
1033 | cpu_to_le32(le16_to_cpu(pSMBr->FileAttributes)); | |
a9d02ad4 | 1034 | /* the file_info buf is endian converted by caller */ |
70ca734a SF |
1035 | pfile_info->AllocationSize = |
1036 | cpu_to_le64(le32_to_cpu(pSMBr->EndOfFile)); | |
1037 | pfile_info->EndOfFile = pfile_info->AllocationSize; | |
a9d02ad4 SF |
1038 | pfile_info->NumberOfLinks = cpu_to_le32(1); |
1039 | } | |
1040 | } | |
1041 | ||
1042 | cifs_buf_release(pSMB); | |
1043 | if (rc == -EAGAIN) | |
1044 | goto OldOpenRetry; | |
1045 | return rc; | |
1046 | } | |
1047 | ||
1da177e4 LT |
1048 | int |
1049 | CIFSSMBOpen(const int xid, struct cifsTconInfo *tcon, | |
1050 | const char *fileName, const int openDisposition, | |
1051 | const int access_flags, const int create_options, __u16 * netfid, | |
1052 | int *pOplock, FILE_ALL_INFO * pfile_info, | |
737b758c | 1053 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
1054 | { |
1055 | int rc = -EACCES; | |
1056 | OPEN_REQ *pSMB = NULL; | |
1057 | OPEN_RSP *pSMBr = NULL; | |
1058 | int bytes_returned; | |
1059 | int name_len; | |
1060 | __u16 count; | |
1061 | ||
1062 | openRetry: | |
1063 | rc = smb_init(SMB_COM_NT_CREATE_ANDX, 24, tcon, (void **) &pSMB, | |
1064 | (void **) &pSMBr); | |
1065 | if (rc) | |
1066 | return rc; | |
1067 | ||
1068 | pSMB->AndXCommand = 0xFF; /* none */ | |
1069 | ||
1070 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1071 | count = 1; /* account for one byte pad to word boundary */ | |
1072 | name_len = | |
b1a45695 | 1073 | cifsConvertToUCS((__le16 *) (pSMB->fileName + 1), |
737b758c | 1074 | fileName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1075 | name_len++; /* trailing null */ |
1076 | name_len *= 2; | |
1077 | pSMB->NameLength = cpu_to_le16(name_len); | |
09d1db5c | 1078 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
1079 | count = 0; /* no pad */ |
1080 | name_len = strnlen(fileName, PATH_MAX); | |
1081 | name_len++; /* trailing null */ | |
1082 | pSMB->NameLength = cpu_to_le16(name_len); | |
1083 | strncpy(pSMB->fileName, fileName, name_len); | |
1084 | } | |
1085 | if (*pOplock & REQ_OPLOCK) | |
1086 | pSMB->OpenFlags = cpu_to_le32(REQ_OPLOCK); | |
1087 | else if (*pOplock & REQ_BATCHOPLOCK) { | |
1088 | pSMB->OpenFlags = cpu_to_le32(REQ_BATCHOPLOCK); | |
1089 | } | |
1090 | pSMB->DesiredAccess = cpu_to_le32(access_flags); | |
1091 | pSMB->AllocationSize = 0; | |
eda3c029 SF |
1092 | /* set file as system file if special file such |
1093 | as fifo and server expecting SFU style and | |
1094 | no Unix extensions */ | |
1095 | if(create_options & CREATE_OPTION_SPECIAL) | |
1096 | pSMB->FileAttributes = cpu_to_le32(ATTR_SYSTEM); | |
1097 | else | |
1098 | pSMB->FileAttributes = cpu_to_le32(ATTR_NORMAL); | |
1da177e4 LT |
1099 | /* XP does not handle ATTR_POSIX_SEMANTICS */ |
1100 | /* but it helps speed up case sensitive checks for other | |
1101 | servers such as Samba */ | |
1102 | if (tcon->ses->capabilities & CAP_UNIX) | |
1103 | pSMB->FileAttributes |= cpu_to_le32(ATTR_POSIX_SEMANTICS); | |
1104 | ||
1105 | /* if ((omode & S_IWUGO) == 0) | |
1106 | pSMB->FileAttributes |= cpu_to_le32(ATTR_READONLY);*/ | |
1107 | /* Above line causes problems due to vfs splitting create into two | |
1108 | pieces - need to set mode after file created not while it is | |
1109 | being created */ | |
1110 | pSMB->ShareAccess = cpu_to_le32(FILE_SHARE_ALL); | |
1111 | pSMB->CreateDisposition = cpu_to_le32(openDisposition); | |
eda3c029 | 1112 | pSMB->CreateOptions = cpu_to_le32(create_options & CREATE_OPTIONS_MASK); |
09d1db5c SF |
1113 | /* BB Expirement with various impersonation levels and verify */ |
1114 | pSMB->ImpersonationLevel = cpu_to_le32(SECURITY_IMPERSONATION); | |
1da177e4 LT |
1115 | pSMB->SecurityFlags = |
1116 | SECURITY_CONTEXT_TRACKING | SECURITY_EFFECTIVE_ONLY; | |
1117 | ||
1118 | count += name_len; | |
1119 | pSMB->hdr.smb_buf_length += count; | |
1120 | ||
1121 | pSMB->ByteCount = cpu_to_le16(count); | |
1122 | /* long_op set to 1 to allow for oplock break timeouts */ | |
1123 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1124 | (struct smb_hdr *) pSMBr, &bytes_returned, 1); | |
a4544347 | 1125 | cifs_stats_inc(&tcon->num_opens); |
1da177e4 LT |
1126 | if (rc) { |
1127 | cFYI(1, ("Error in Open = %d", rc)); | |
1128 | } else { | |
09d1db5c | 1129 | *pOplock = pSMBr->OplockLevel; /* 1 byte no need to le_to_cpu */ |
1da177e4 LT |
1130 | *netfid = pSMBr->Fid; /* cifs fid stays in le */ |
1131 | /* Let caller know file was created so we can set the mode. */ | |
1132 | /* Do we care about the CreateAction in any other cases? */ | |
1133 | if(cpu_to_le32(FILE_CREATE) == pSMBr->CreateAction) | |
1134 | *pOplock |= CIFS_CREATE_ACTION; | |
1135 | if(pfile_info) { | |
1136 | memcpy((char *)pfile_info,(char *)&pSMBr->CreationTime, | |
1137 | 36 /* CreationTime to Attributes */); | |
1138 | /* the file_info buf is endian converted by caller */ | |
1139 | pfile_info->AllocationSize = pSMBr->AllocationSize; | |
1140 | pfile_info->EndOfFile = pSMBr->EndOfFile; | |
1141 | pfile_info->NumberOfLinks = cpu_to_le32(1); | |
1142 | } | |
1da177e4 | 1143 | } |
a5a2b489 | 1144 | |
1da177e4 LT |
1145 | cifs_buf_release(pSMB); |
1146 | if (rc == -EAGAIN) | |
1147 | goto openRetry; | |
1148 | return rc; | |
1149 | } | |
1150 | ||
1da177e4 LT |
1151 | int |
1152 | CIFSSMBRead(const int xid, struct cifsTconInfo *tcon, | |
ec637e3f SF |
1153 | const int netfid, const unsigned int count, |
1154 | const __u64 lseek, unsigned int *nbytes, char **buf, | |
1155 | int * pbuf_type) | |
1da177e4 LT |
1156 | { |
1157 | int rc = -EACCES; | |
1158 | READ_REQ *pSMB = NULL; | |
1159 | READ_RSP *pSMBr = NULL; | |
1160 | char *pReadData = NULL; | |
bfa0d75a | 1161 | int wct; |
ec637e3f SF |
1162 | int resp_buf_type = 0; |
1163 | struct kvec iov[1]; | |
1da177e4 LT |
1164 | |
1165 | cFYI(1,("Reading %d bytes on fid %d",count,netfid)); | |
bfa0d75a SF |
1166 | if(tcon->ses->capabilities & CAP_LARGE_FILES) |
1167 | wct = 12; | |
1168 | else | |
1169 | wct = 10; /* old style read */ | |
1da177e4 LT |
1170 | |
1171 | *nbytes = 0; | |
ec637e3f | 1172 | rc = small_smb_init(SMB_COM_READ_ANDX, wct, tcon, (void **) &pSMB); |
1da177e4 LT |
1173 | if (rc) |
1174 | return rc; | |
1175 | ||
1176 | /* tcon and ses pointer are checked in smb_init */ | |
1177 | if (tcon->ses->server == NULL) | |
1178 | return -ECONNABORTED; | |
1179 | ||
ec637e3f | 1180 | pSMB->AndXCommand = 0xFF; /* none */ |
1da177e4 LT |
1181 | pSMB->Fid = netfid; |
1182 | pSMB->OffsetLow = cpu_to_le32(lseek & 0xFFFFFFFF); | |
bfa0d75a SF |
1183 | if(wct == 12) |
1184 | pSMB->OffsetHigh = cpu_to_le32(lseek >> 32); | |
ec637e3f SF |
1185 | else if((lseek >> 32) > 0) /* can not handle this big offset for old */ |
1186 | return -EIO; | |
bfa0d75a | 1187 | |
1da177e4 LT |
1188 | pSMB->Remaining = 0; |
1189 | pSMB->MaxCount = cpu_to_le16(count & 0xFFFF); | |
1190 | pSMB->MaxCountHigh = cpu_to_le32(count >> 16); | |
bfa0d75a SF |
1191 | if(wct == 12) |
1192 | pSMB->ByteCount = 0; /* no need to do le conversion since 0 */ | |
1193 | else { | |
1194 | /* old style read */ | |
ec637e3f | 1195 | struct smb_com_readx_req * pSMBW = |
bfa0d75a | 1196 | (struct smb_com_readx_req *)pSMB; |
ec637e3f | 1197 | pSMBW->ByteCount = 0; |
bfa0d75a | 1198 | } |
ec637e3f SF |
1199 | |
1200 | iov[0].iov_base = (char *)pSMB; | |
1201 | iov[0].iov_len = pSMB->hdr.smb_buf_length + 4; | |
1202 | rc = SendReceive2(xid, tcon->ses, iov, | |
1203 | 1 /* num iovecs */, | |
1204 | &resp_buf_type, 0); | |
a4544347 | 1205 | cifs_stats_inc(&tcon->num_reads); |
ec637e3f | 1206 | pSMBr = (READ_RSP *)iov[0].iov_base; |
1da177e4 LT |
1207 | if (rc) { |
1208 | cERROR(1, ("Send error in read = %d", rc)); | |
1209 | } else { | |
1210 | int data_length = le16_to_cpu(pSMBr->DataLengthHigh); | |
1211 | data_length = data_length << 16; | |
1212 | data_length += le16_to_cpu(pSMBr->DataLength); | |
1213 | *nbytes = data_length; | |
1214 | ||
1215 | /*check that DataLength would not go beyond end of SMB */ | |
ec637e3f | 1216 | if ((data_length > CIFSMaxBufSize) |
1da177e4 LT |
1217 | || (data_length > count)) { |
1218 | cFYI(1,("bad length %d for count %d",data_length,count)); | |
1219 | rc = -EIO; | |
1220 | *nbytes = 0; | |
1221 | } else { | |
ec637e3f | 1222 | pReadData = (char *) (&pSMBr->hdr.Protocol) + |
1da177e4 | 1223 | le16_to_cpu(pSMBr->DataOffset); |
ec637e3f SF |
1224 | /* if(rc = copy_to_user(buf, pReadData, data_length)) { |
1225 | cERROR(1,("Faulting on read rc = %d",rc)); | |
1226 | rc = -EFAULT; | |
1227 | }*/ /* can not use copy_to_user when using page cache*/ | |
1da177e4 | 1228 | if(*buf) |
ec637e3f | 1229 | memcpy(*buf,pReadData,data_length); |
1da177e4 LT |
1230 | } |
1231 | } | |
1da177e4 | 1232 | |
4b8f930f | 1233 | /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */ |
ec637e3f SF |
1234 | if(*buf) { |
1235 | if(resp_buf_type == CIFS_SMALL_BUFFER) | |
1236 | cifs_small_buf_release(iov[0].iov_base); | |
1237 | else if(resp_buf_type == CIFS_LARGE_BUFFER) | |
1238 | cifs_buf_release(iov[0].iov_base); | |
6cec2aed SF |
1239 | } else if(resp_buf_type != CIFS_NO_BUFFER) { |
1240 | /* return buffer to caller to free */ | |
1241 | *buf = iov[0].iov_base; | |
ec637e3f SF |
1242 | if(resp_buf_type == CIFS_SMALL_BUFFER) |
1243 | *pbuf_type = CIFS_SMALL_BUFFER; | |
1244 | else if(resp_buf_type == CIFS_LARGE_BUFFER) | |
1245 | *pbuf_type = CIFS_LARGE_BUFFER; | |
6cec2aed | 1246 | } /* else no valid buffer on return - leave as null */ |
ec637e3f SF |
1247 | |
1248 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
1da177e4 LT |
1249 | since file handle passed in no longer valid */ |
1250 | return rc; | |
1251 | } | |
1252 | ||
ec637e3f | 1253 | |
1da177e4 LT |
1254 | int |
1255 | CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon, | |
1256 | const int netfid, const unsigned int count, | |
1257 | const __u64 offset, unsigned int *nbytes, const char *buf, | |
1258 | const char __user * ubuf, const int long_op) | |
1259 | { | |
1260 | int rc = -EACCES; | |
1261 | WRITE_REQ *pSMB = NULL; | |
1262 | WRITE_RSP *pSMBr = NULL; | |
1c955187 | 1263 | int bytes_returned, wct; |
1da177e4 LT |
1264 | __u32 bytes_sent; |
1265 | __u16 byte_count; | |
1266 | ||
1267 | /* cFYI(1,("write at %lld %d bytes",offset,count));*/ | |
1c955187 SF |
1268 | if(tcon->ses == NULL) |
1269 | return -ECONNABORTED; | |
1270 | ||
1271 | if(tcon->ses->capabilities & CAP_LARGE_FILES) | |
1272 | wct = 14; | |
1273 | else | |
1274 | wct = 12; | |
1275 | ||
1276 | rc = smb_init(SMB_COM_WRITE_ANDX, wct, tcon, (void **) &pSMB, | |
1da177e4 LT |
1277 | (void **) &pSMBr); |
1278 | if (rc) | |
1279 | return rc; | |
1280 | /* tcon and ses pointer are checked in smb_init */ | |
1281 | if (tcon->ses->server == NULL) | |
1282 | return -ECONNABORTED; | |
1283 | ||
1284 | pSMB->AndXCommand = 0xFF; /* none */ | |
1285 | pSMB->Fid = netfid; | |
1286 | pSMB->OffsetLow = cpu_to_le32(offset & 0xFFFFFFFF); | |
1c955187 SF |
1287 | if(wct == 14) |
1288 | pSMB->OffsetHigh = cpu_to_le32(offset >> 32); | |
1289 | else if((offset >> 32) > 0) /* can not handle this big offset for old */ | |
1290 | return -EIO; | |
1291 | ||
1da177e4 LT |
1292 | pSMB->Reserved = 0xFFFFFFFF; |
1293 | pSMB->WriteMode = 0; | |
1294 | pSMB->Remaining = 0; | |
1295 | ||
1296 | /* Can increase buffer size if buffer is big enough in some cases - ie we | |
1297 | can send more if LARGE_WRITE_X capability returned by the server and if | |
1298 | our buffer is big enough or if we convert to iovecs on socket writes | |
1299 | and eliminate the copy to the CIFS buffer */ | |
1300 | if(tcon->ses->capabilities & CAP_LARGE_WRITE_X) { | |
1301 | bytes_sent = min_t(const unsigned int, CIFSMaxBufSize, count); | |
1302 | } else { | |
1303 | bytes_sent = (tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) | |
1304 | & ~0xFF; | |
1305 | } | |
1306 | ||
1307 | if (bytes_sent > count) | |
1308 | bytes_sent = count; | |
1309 | pSMB->DataOffset = | |
e30dcf3a | 1310 | cpu_to_le16(offsetof(struct smb_com_write_req,Data) - 4); |
1da177e4 LT |
1311 | if(buf) |
1312 | memcpy(pSMB->Data,buf,bytes_sent); | |
1313 | else if(ubuf) { | |
1314 | if(copy_from_user(pSMB->Data,ubuf,bytes_sent)) { | |
1315 | cifs_buf_release(pSMB); | |
1316 | return -EFAULT; | |
1317 | } | |
e30dcf3a | 1318 | } else if (count != 0) { |
1da177e4 LT |
1319 | /* No buffer */ |
1320 | cifs_buf_release(pSMB); | |
1321 | return -EINVAL; | |
e30dcf3a SF |
1322 | } /* else setting file size with write of zero bytes */ |
1323 | if(wct == 14) | |
1324 | byte_count = bytes_sent + 1; /* pad */ | |
1325 | else /* wct == 12 */ { | |
1326 | byte_count = bytes_sent + 5; /* bigger pad, smaller smb hdr */ | |
1da177e4 | 1327 | } |
1da177e4 LT |
1328 | pSMB->DataLengthLow = cpu_to_le16(bytes_sent & 0xFFFF); |
1329 | pSMB->DataLengthHigh = cpu_to_le16(bytes_sent >> 16); | |
e30dcf3a | 1330 | pSMB->hdr.smb_buf_length += byte_count; |
1c955187 SF |
1331 | |
1332 | if(wct == 14) | |
1333 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
e30dcf3a | 1334 | else { /* old style write has byte count 4 bytes earlier so 4 bytes pad */ |
1c955187 SF |
1335 | struct smb_com_writex_req * pSMBW = |
1336 | (struct smb_com_writex_req *)pSMB; | |
1337 | pSMBW->ByteCount = cpu_to_le16(byte_count); | |
1338 | } | |
1da177e4 LT |
1339 | |
1340 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1341 | (struct smb_hdr *) pSMBr, &bytes_returned, long_op); | |
a4544347 | 1342 | cifs_stats_inc(&tcon->num_writes); |
1da177e4 LT |
1343 | if (rc) { |
1344 | cFYI(1, ("Send error in write = %d", rc)); | |
1345 | *nbytes = 0; | |
1346 | } else { | |
1347 | *nbytes = le16_to_cpu(pSMBr->CountHigh); | |
1348 | *nbytes = (*nbytes) << 16; | |
1349 | *nbytes += le16_to_cpu(pSMBr->Count); | |
1350 | } | |
1351 | ||
1352 | cifs_buf_release(pSMB); | |
1353 | ||
1354 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
1355 | since file handle passed in no longer valid */ | |
1356 | ||
1357 | return rc; | |
1358 | } | |
1359 | ||
d6e04ae6 SF |
1360 | int |
1361 | CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon, | |
1da177e4 | 1362 | const int netfid, const unsigned int count, |
3e84469d SF |
1363 | const __u64 offset, unsigned int *nbytes, struct kvec *iov, |
1364 | int n_vec, const int long_op) | |
1da177e4 LT |
1365 | { |
1366 | int rc = -EACCES; | |
1367 | WRITE_REQ *pSMB = NULL; | |
ec637e3f | 1368 | int wct; |
d6e04ae6 | 1369 | int smb_hdr_len; |
ec637e3f | 1370 | int resp_buf_type = 0; |
1da177e4 | 1371 | |
ff7feac9 SF |
1372 | cFYI(1,("write2 at %lld %d bytes", (long long)offset, count)); |
1373 | ||
8cc64c6e SF |
1374 | if(tcon->ses->capabilities & CAP_LARGE_FILES) |
1375 | wct = 14; | |
1376 | else | |
1377 | wct = 12; | |
1378 | rc = small_smb_init(SMB_COM_WRITE_ANDX, wct, tcon, (void **) &pSMB); | |
1da177e4 LT |
1379 | if (rc) |
1380 | return rc; | |
1da177e4 LT |
1381 | /* tcon and ses pointer are checked in smb_init */ |
1382 | if (tcon->ses->server == NULL) | |
1383 | return -ECONNABORTED; | |
1384 | ||
d6e04ae6 | 1385 | pSMB->AndXCommand = 0xFF; /* none */ |
1da177e4 LT |
1386 | pSMB->Fid = netfid; |
1387 | pSMB->OffsetLow = cpu_to_le32(offset & 0xFFFFFFFF); | |
8cc64c6e SF |
1388 | if(wct == 14) |
1389 | pSMB->OffsetHigh = cpu_to_le32(offset >> 32); | |
1390 | else if((offset >> 32) > 0) /* can not handle this big offset for old */ | |
1391 | return -EIO; | |
1da177e4 LT |
1392 | pSMB->Reserved = 0xFFFFFFFF; |
1393 | pSMB->WriteMode = 0; | |
1394 | pSMB->Remaining = 0; | |
d6e04ae6 | 1395 | |
1da177e4 LT |
1396 | pSMB->DataOffset = |
1397 | cpu_to_le16(offsetof(struct smb_com_write_req,Data) - 4); | |
1398 | ||
3e84469d SF |
1399 | pSMB->DataLengthLow = cpu_to_le16(count & 0xFFFF); |
1400 | pSMB->DataLengthHigh = cpu_to_le16(count >> 16); | |
d6e04ae6 | 1401 | smb_hdr_len = pSMB->hdr.smb_buf_length + 1; /* hdr + 1 byte pad */ |
8cc64c6e SF |
1402 | if(wct == 14) |
1403 | pSMB->hdr.smb_buf_length += count+1; | |
1404 | else /* wct == 12 */ | |
1405 | pSMB->hdr.smb_buf_length += count+5; /* smb data starts later */ | |
1406 | if(wct == 14) | |
1407 | pSMB->ByteCount = cpu_to_le16(count + 1); | |
1408 | else /* wct == 12 */ /* bigger pad, smaller smb hdr, keep offset ok */ { | |
1409 | struct smb_com_writex_req * pSMBW = | |
1410 | (struct smb_com_writex_req *)pSMB; | |
1411 | pSMBW->ByteCount = cpu_to_le16(count + 5); | |
1412 | } | |
3e84469d | 1413 | iov[0].iov_base = pSMB; |
ec637e3f SF |
1414 | if(wct == 14) |
1415 | iov[0].iov_len = smb_hdr_len + 4; | |
1416 | else /* wct == 12 pad bigger by four bytes */ | |
1417 | iov[0].iov_len = smb_hdr_len + 8; | |
1418 | ||
1da177e4 | 1419 | |
ec637e3f | 1420 | rc = SendReceive2(xid, tcon->ses, iov, n_vec + 1, &resp_buf_type, |
3e84469d | 1421 | long_op); |
a4544347 | 1422 | cifs_stats_inc(&tcon->num_writes); |
1da177e4 | 1423 | if (rc) { |
8cc64c6e | 1424 | cFYI(1, ("Send error Write2 = %d", rc)); |
1da177e4 | 1425 | *nbytes = 0; |
ec637e3f SF |
1426 | } else if(resp_buf_type == 0) { |
1427 | /* presumably this can not happen, but best to be safe */ | |
1428 | rc = -EIO; | |
1429 | *nbytes = 0; | |
d6e04ae6 | 1430 | } else { |
ec637e3f | 1431 | WRITE_RSP * pSMBr = (WRITE_RSP *)iov[0].iov_base; |
d6e04ae6 SF |
1432 | *nbytes = le16_to_cpu(pSMBr->CountHigh); |
1433 | *nbytes = (*nbytes) << 16; | |
1434 | *nbytes += le16_to_cpu(pSMBr->Count); | |
84afc29b | 1435 | } |
1da177e4 | 1436 | |
4b8f930f | 1437 | /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */ |
ec637e3f SF |
1438 | if(resp_buf_type == CIFS_SMALL_BUFFER) |
1439 | cifs_small_buf_release(iov[0].iov_base); | |
1440 | else if(resp_buf_type == CIFS_LARGE_BUFFER) | |
1441 | cifs_buf_release(iov[0].iov_base); | |
1da177e4 LT |
1442 | |
1443 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
1444 | since file handle passed in no longer valid */ | |
1445 | ||
1446 | return rc; | |
1447 | } | |
d6e04ae6 SF |
1448 | |
1449 | ||
1da177e4 LT |
1450 | int |
1451 | CIFSSMBLock(const int xid, struct cifsTconInfo *tcon, | |
1452 | const __u16 smb_file_id, const __u64 len, | |
1453 | const __u64 offset, const __u32 numUnlock, | |
1454 | const __u32 numLock, const __u8 lockType, const int waitFlag) | |
1455 | { | |
1456 | int rc = 0; | |
1457 | LOCK_REQ *pSMB = NULL; | |
1458 | LOCK_RSP *pSMBr = NULL; | |
1459 | int bytes_returned; | |
1460 | int timeout = 0; | |
1461 | __u16 count; | |
1462 | ||
1463 | cFYI(1, ("In CIFSSMBLock - timeout %d numLock %d",waitFlag,numLock)); | |
46810cbf SF |
1464 | rc = small_smb_init(SMB_COM_LOCKING_ANDX, 8, tcon, (void **) &pSMB); |
1465 | ||
1da177e4 LT |
1466 | if (rc) |
1467 | return rc; | |
1468 | ||
46810cbf SF |
1469 | pSMBr = (LOCK_RSP *)pSMB; /* BB removeme BB */ |
1470 | ||
1da177e4 LT |
1471 | if(lockType == LOCKING_ANDX_OPLOCK_RELEASE) { |
1472 | timeout = -1; /* no response expected */ | |
1473 | pSMB->Timeout = 0; | |
1474 | } else if (waitFlag == TRUE) { | |
1475 | timeout = 3; /* blocking operation, no timeout */ | |
1476 | pSMB->Timeout = cpu_to_le32(-1);/* blocking - do not time out */ | |
1477 | } else { | |
1478 | pSMB->Timeout = 0; | |
1479 | } | |
1480 | ||
1481 | pSMB->NumberOfLocks = cpu_to_le16(numLock); | |
1482 | pSMB->NumberOfUnlocks = cpu_to_le16(numUnlock); | |
1483 | pSMB->LockType = lockType; | |
1484 | pSMB->AndXCommand = 0xFF; /* none */ | |
1485 | pSMB->Fid = smb_file_id; /* netfid stays le */ | |
1486 | ||
1487 | if((numLock != 0) || (numUnlock != 0)) { | |
1488 | pSMB->Locks[0].Pid = cpu_to_le16(current->tgid); | |
1489 | /* BB where to store pid high? */ | |
1490 | pSMB->Locks[0].LengthLow = cpu_to_le32((u32)len); | |
1491 | pSMB->Locks[0].LengthHigh = cpu_to_le32((u32)(len>>32)); | |
1492 | pSMB->Locks[0].OffsetLow = cpu_to_le32((u32)offset); | |
1493 | pSMB->Locks[0].OffsetHigh = cpu_to_le32((u32)(offset>>32)); | |
1494 | count = sizeof(LOCKING_ANDX_RANGE); | |
1495 | } else { | |
1496 | /* oplock break */ | |
1497 | count = 0; | |
1498 | } | |
1499 | pSMB->hdr.smb_buf_length += count; | |
1500 | pSMB->ByteCount = cpu_to_le16(count); | |
1501 | ||
7ee1af76 JA |
1502 | if (waitFlag) { |
1503 | rc = SendReceiveBlockingLock(xid, tcon, (struct smb_hdr *) pSMB, | |
1504 | (struct smb_hdr *) pSMBr, &bytes_returned); | |
1505 | } else { | |
1506 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1da177e4 | 1507 | (struct smb_hdr *) pSMBr, &bytes_returned, timeout); |
7ee1af76 | 1508 | } |
a4544347 | 1509 | cifs_stats_inc(&tcon->num_locks); |
1da177e4 LT |
1510 | if (rc) { |
1511 | cFYI(1, ("Send error in Lock = %d", rc)); | |
1512 | } | |
46810cbf | 1513 | cifs_small_buf_release(pSMB); |
1da177e4 LT |
1514 | |
1515 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
1516 | since file handle passed in no longer valid */ | |
1517 | return rc; | |
1518 | } | |
1519 | ||
08547b03 SF |
1520 | int |
1521 | CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon, | |
1522 | const __u16 smb_file_id, const int get_flag, const __u64 len, | |
fc94cdb9 SF |
1523 | struct file_lock *pLockData, const __u16 lock_type, |
1524 | const int waitFlag) | |
08547b03 SF |
1525 | { |
1526 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
1527 | struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; | |
1528 | char *data_offset; | |
1529 | struct cifs_posix_lock *parm_data; | |
1530 | int rc = 0; | |
3a5ff61c | 1531 | int timeout = 0; |
08547b03 SF |
1532 | int bytes_returned = 0; |
1533 | __u16 params, param_offset, offset, byte_count, count; | |
1534 | ||
1535 | cFYI(1, ("Posix Lock")); | |
fc94cdb9 SF |
1536 | |
1537 | if(pLockData == NULL) | |
1538 | return EINVAL; | |
1539 | ||
08547b03 SF |
1540 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
1541 | ||
1542 | if (rc) | |
1543 | return rc; | |
1544 | ||
1545 | pSMBr = (struct smb_com_transaction2_sfi_rsp *)pSMB; | |
1546 | ||
1547 | params = 6; | |
1548 | pSMB->MaxSetupCount = 0; | |
1549 | pSMB->Reserved = 0; | |
1550 | pSMB->Flags = 0; | |
08547b03 SF |
1551 | pSMB->Reserved2 = 0; |
1552 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
1553 | offset = param_offset + params; | |
1554 | ||
1555 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
1556 | ||
1557 | count = sizeof(struct cifs_posix_lock); | |
1558 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
1559 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB PDU from sess */ | |
1560 | pSMB->SetupCount = 1; | |
1561 | pSMB->Reserved3 = 0; | |
1562 | if(get_flag) | |
1563 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FILE_INFORMATION); | |
1564 | else | |
1565 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
1566 | byte_count = 3 /* pad */ + params + count; | |
1567 | pSMB->DataCount = cpu_to_le16(count); | |
1568 | pSMB->ParameterCount = cpu_to_le16(params); | |
1569 | pSMB->TotalDataCount = pSMB->DataCount; | |
1570 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
1571 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
1572 | parm_data = (struct cifs_posix_lock *) | |
1573 | (((char *) &pSMB->hdr.Protocol) + offset); | |
1574 | ||
1575 | parm_data->lock_type = cpu_to_le16(lock_type); | |
3a5ff61c SF |
1576 | if(waitFlag) { |
1577 | timeout = 3; /* blocking operation, no timeout */ | |
cec6815a | 1578 | parm_data->lock_flags = cpu_to_le16(1); |
3a5ff61c SF |
1579 | pSMB->Timeout = cpu_to_le32(-1); |
1580 | } else | |
1581 | pSMB->Timeout = 0; | |
1582 | ||
08547b03 | 1583 | parm_data->pid = cpu_to_le32(current->tgid); |
fc94cdb9 | 1584 | parm_data->start = cpu_to_le64(pLockData->fl_start); |
cec6815a | 1585 | parm_data->length = cpu_to_le64(len); /* normalize negative numbers */ |
08547b03 SF |
1586 | |
1587 | pSMB->DataOffset = cpu_to_le16(offset); | |
f26282c9 | 1588 | pSMB->Fid = smb_file_id; |
08547b03 SF |
1589 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_POSIX_LOCK); |
1590 | pSMB->Reserved4 = 0; | |
1591 | pSMB->hdr.smb_buf_length += byte_count; | |
1592 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
7ee1af76 JA |
1593 | if (waitFlag) { |
1594 | rc = SendReceiveBlockingLock(xid, tcon, (struct smb_hdr *) pSMB, | |
1595 | (struct smb_hdr *) pSMBr, &bytes_returned); | |
1596 | } else { | |
1597 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3a5ff61c | 1598 | (struct smb_hdr *) pSMBr, &bytes_returned, timeout); |
7ee1af76 JA |
1599 | } |
1600 | ||
08547b03 SF |
1601 | if (rc) { |
1602 | cFYI(1, ("Send error in Posix Lock = %d", rc)); | |
fc94cdb9 SF |
1603 | } else if (get_flag) { |
1604 | /* lock structure can be returned on get */ | |
1605 | __u16 data_offset; | |
1606 | __u16 data_count; | |
1607 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
1608 | ||
1609 | if (rc || (pSMBr->ByteCount < sizeof(struct cifs_posix_lock))) { | |
1610 | rc = -EIO; /* bad smb */ | |
1611 | goto plk_err_exit; | |
1612 | } | |
1613 | if(pLockData == NULL) { | |
1614 | rc = -EINVAL; | |
1615 | goto plk_err_exit; | |
1616 | } | |
1617 | data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
1618 | data_count = le16_to_cpu(pSMBr->t2.DataCount); | |
1619 | if(data_count < sizeof(struct cifs_posix_lock)) { | |
1620 | rc = -EIO; | |
1621 | goto plk_err_exit; | |
1622 | } | |
1623 | parm_data = (struct cifs_posix_lock *) | |
1624 | ((char *)&pSMBr->hdr.Protocol + data_offset); | |
1625 | if(parm_data->lock_type == cpu_to_le16(CIFS_UNLCK)) | |
1626 | pLockData->fl_type = F_UNLCK; | |
08547b03 | 1627 | } |
fc94cdb9 SF |
1628 | |
1629 | plk_err_exit: | |
08547b03 SF |
1630 | if (pSMB) |
1631 | cifs_small_buf_release(pSMB); | |
1632 | ||
1633 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
1634 | since file handle passed in no longer valid */ | |
1635 | ||
1636 | return rc; | |
1637 | } | |
1638 | ||
1639 | ||
1da177e4 LT |
1640 | int |
1641 | CIFSSMBClose(const int xid, struct cifsTconInfo *tcon, int smb_file_id) | |
1642 | { | |
1643 | int rc = 0; | |
1644 | CLOSE_REQ *pSMB = NULL; | |
1645 | CLOSE_RSP *pSMBr = NULL; | |
1646 | int bytes_returned; | |
1647 | cFYI(1, ("In CIFSSMBClose")); | |
1648 | ||
1649 | /* do not retry on dead session on close */ | |
1650 | rc = small_smb_init(SMB_COM_CLOSE, 3, tcon, (void **) &pSMB); | |
1651 | if(rc == -EAGAIN) | |
1652 | return 0; | |
1653 | if (rc) | |
1654 | return rc; | |
1655 | ||
1656 | pSMBr = (CLOSE_RSP *)pSMB; /* BB removeme BB */ | |
1657 | ||
1658 | pSMB->FileID = (__u16) smb_file_id; | |
b815f1e5 | 1659 | pSMB->LastWriteTime = 0xFFFFFFFF; |
1da177e4 LT |
1660 | pSMB->ByteCount = 0; |
1661 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1662 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 1663 | cifs_stats_inc(&tcon->num_closes); |
1da177e4 LT |
1664 | if (rc) { |
1665 | if(rc!=-EINTR) { | |
1666 | /* EINTR is expected when user ctl-c to kill app */ | |
1667 | cERROR(1, ("Send error in Close = %d", rc)); | |
1668 | } | |
1669 | } | |
1670 | ||
1671 | cifs_small_buf_release(pSMB); | |
1672 | ||
1673 | /* Since session is dead, file will be closed on server already */ | |
1674 | if(rc == -EAGAIN) | |
1675 | rc = 0; | |
1676 | ||
1677 | return rc; | |
1678 | } | |
1679 | ||
1680 | int | |
1681 | CIFSSMBRename(const int xid, struct cifsTconInfo *tcon, | |
1682 | const char *fromName, const char *toName, | |
737b758c | 1683 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
1684 | { |
1685 | int rc = 0; | |
1686 | RENAME_REQ *pSMB = NULL; | |
1687 | RENAME_RSP *pSMBr = NULL; | |
1688 | int bytes_returned; | |
1689 | int name_len, name_len2; | |
1690 | __u16 count; | |
1691 | ||
1692 | cFYI(1, ("In CIFSSMBRename")); | |
1693 | renameRetry: | |
1694 | rc = smb_init(SMB_COM_RENAME, 1, tcon, (void **) &pSMB, | |
1695 | (void **) &pSMBr); | |
1696 | if (rc) | |
1697 | return rc; | |
1698 | ||
1699 | pSMB->BufferFormat = 0x04; | |
1700 | pSMB->SearchAttributes = | |
1701 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | | |
1702 | ATTR_DIRECTORY); | |
1703 | ||
1704 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1705 | name_len = | |
b1a45695 | 1706 | cifsConvertToUCS((__le16 *) pSMB->OldFileName, fromName, |
737b758c | 1707 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1708 | name_len++; /* trailing null */ |
1709 | name_len *= 2; | |
1710 | pSMB->OldFileName[name_len] = 0x04; /* pad */ | |
1711 | /* protocol requires ASCII signature byte on Unicode string */ | |
1712 | pSMB->OldFileName[name_len + 1] = 0x00; | |
1713 | name_len2 = | |
b1a45695 | 1714 | cifsConvertToUCS((__le16 *) &pSMB->OldFileName[name_len + 2], |
737b758c | 1715 | toName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1716 | name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; |
1717 | name_len2 *= 2; /* convert to bytes */ | |
1718 | } else { /* BB improve the check for buffer overruns BB */ | |
1719 | name_len = strnlen(fromName, PATH_MAX); | |
1720 | name_len++; /* trailing null */ | |
1721 | strncpy(pSMB->OldFileName, fromName, name_len); | |
1722 | name_len2 = strnlen(toName, PATH_MAX); | |
1723 | name_len2++; /* trailing null */ | |
1724 | pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */ | |
1725 | strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2); | |
1726 | name_len2++; /* trailing null */ | |
1727 | name_len2++; /* signature byte */ | |
1728 | } | |
1729 | ||
1730 | count = 1 /* 1st signature byte */ + name_len + name_len2; | |
1731 | pSMB->hdr.smb_buf_length += count; | |
1732 | pSMB->ByteCount = cpu_to_le16(count); | |
1733 | ||
1734 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1735 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 1736 | cifs_stats_inc(&tcon->num_renames); |
1da177e4 LT |
1737 | if (rc) { |
1738 | cFYI(1, ("Send error in rename = %d", rc)); | |
1739 | } | |
1740 | ||
1da177e4 LT |
1741 | cifs_buf_release(pSMB); |
1742 | ||
1743 | if (rc == -EAGAIN) | |
1744 | goto renameRetry; | |
1745 | ||
1746 | return rc; | |
1747 | } | |
1748 | ||
1749 | int CIFSSMBRenameOpenFile(const int xid,struct cifsTconInfo *pTcon, | |
737b758c SF |
1750 | int netfid, char * target_name, |
1751 | const struct nls_table * nls_codepage, int remap) | |
1da177e4 LT |
1752 | { |
1753 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
1754 | struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; | |
1755 | struct set_file_rename * rename_info; | |
1756 | char *data_offset; | |
1757 | char dummy_string[30]; | |
1758 | int rc = 0; | |
1759 | int bytes_returned = 0; | |
1760 | int len_of_str; | |
1761 | __u16 params, param_offset, offset, count, byte_count; | |
1762 | ||
1763 | cFYI(1, ("Rename to File by handle")); | |
1764 | rc = smb_init(SMB_COM_TRANSACTION2, 15, pTcon, (void **) &pSMB, | |
1765 | (void **) &pSMBr); | |
1766 | if (rc) | |
1767 | return rc; | |
1768 | ||
1769 | params = 6; | |
1770 | pSMB->MaxSetupCount = 0; | |
1771 | pSMB->Reserved = 0; | |
1772 | pSMB->Flags = 0; | |
1773 | pSMB->Timeout = 0; | |
1774 | pSMB->Reserved2 = 0; | |
1775 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
1776 | offset = param_offset + params; | |
1777 | ||
1778 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
1779 | rename_info = (struct set_file_rename *) data_offset; | |
1780 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
1781 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB PDU from sess */ | |
1782 | pSMB->SetupCount = 1; | |
1783 | pSMB->Reserved3 = 0; | |
1784 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
1785 | byte_count = 3 /* pad */ + params; | |
1786 | pSMB->ParameterCount = cpu_to_le16(params); | |
1787 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
1788 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
1789 | pSMB->DataOffset = cpu_to_le16(offset); | |
1790 | /* construct random name ".cifs_tmp<inodenum><mid>" */ | |
1791 | rename_info->overwrite = cpu_to_le32(1); | |
1792 | rename_info->root_fid = 0; | |
1793 | /* unicode only call */ | |
1794 | if(target_name == NULL) { | |
1795 | sprintf(dummy_string,"cifs%x",pSMB->hdr.Mid); | |
b1a45695 | 1796 | len_of_str = cifsConvertToUCS((__le16 *)rename_info->target_name, |
737b758c | 1797 | dummy_string, 24, nls_codepage, remap); |
1da177e4 | 1798 | } else { |
b1a45695 | 1799 | len_of_str = cifsConvertToUCS((__le16 *)rename_info->target_name, |
737b758c | 1800 | target_name, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1801 | } |
1802 | rename_info->target_name_len = cpu_to_le32(2 * len_of_str); | |
1803 | count = 12 /* sizeof(struct set_file_rename) */ + (2 * len_of_str) + 2; | |
1804 | byte_count += count; | |
1805 | pSMB->DataCount = cpu_to_le16(count); | |
1806 | pSMB->TotalDataCount = pSMB->DataCount; | |
1807 | pSMB->Fid = netfid; | |
1808 | pSMB->InformationLevel = | |
1809 | cpu_to_le16(SMB_SET_FILE_RENAME_INFORMATION); | |
1810 | pSMB->Reserved4 = 0; | |
1811 | pSMB->hdr.smb_buf_length += byte_count; | |
1812 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
1813 | rc = SendReceive(xid, pTcon->ses, (struct smb_hdr *) pSMB, | |
1814 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 1815 | cifs_stats_inc(&pTcon->num_t2renames); |
1da177e4 LT |
1816 | if (rc) { |
1817 | cFYI(1,("Send error in Rename (by file handle) = %d", rc)); | |
1818 | } | |
a5a2b489 | 1819 | |
1da177e4 LT |
1820 | cifs_buf_release(pSMB); |
1821 | ||
1822 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
1823 | since file handle passed in no longer valid */ | |
1824 | ||
1825 | return rc; | |
1826 | } | |
1827 | ||
1828 | int | |
1829 | CIFSSMBCopy(const int xid, struct cifsTconInfo *tcon, const char * fromName, | |
1830 | const __u16 target_tid, const char *toName, const int flags, | |
737b758c | 1831 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
1832 | { |
1833 | int rc = 0; | |
1834 | COPY_REQ *pSMB = NULL; | |
1835 | COPY_RSP *pSMBr = NULL; | |
1836 | int bytes_returned; | |
1837 | int name_len, name_len2; | |
1838 | __u16 count; | |
1839 | ||
1840 | cFYI(1, ("In CIFSSMBCopy")); | |
1841 | copyRetry: | |
1842 | rc = smb_init(SMB_COM_COPY, 1, tcon, (void **) &pSMB, | |
1843 | (void **) &pSMBr); | |
1844 | if (rc) | |
1845 | return rc; | |
1846 | ||
1847 | pSMB->BufferFormat = 0x04; | |
1848 | pSMB->Tid2 = target_tid; | |
1849 | ||
1850 | pSMB->Flags = cpu_to_le16(flags & COPY_TREE); | |
1851 | ||
1852 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
b1a45695 | 1853 | name_len = cifsConvertToUCS((__le16 *) pSMB->OldFileName, |
737b758c SF |
1854 | fromName, PATH_MAX, nls_codepage, |
1855 | remap); | |
1da177e4 LT |
1856 | name_len++; /* trailing null */ |
1857 | name_len *= 2; | |
1858 | pSMB->OldFileName[name_len] = 0x04; /* pad */ | |
1859 | /* protocol requires ASCII signature byte on Unicode string */ | |
1860 | pSMB->OldFileName[name_len + 1] = 0x00; | |
b1a45695 | 1861 | name_len2 = cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2], |
737b758c | 1862 | toName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1863 | name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; |
1864 | name_len2 *= 2; /* convert to bytes */ | |
1865 | } else { /* BB improve the check for buffer overruns BB */ | |
1866 | name_len = strnlen(fromName, PATH_MAX); | |
1867 | name_len++; /* trailing null */ | |
1868 | strncpy(pSMB->OldFileName, fromName, name_len); | |
1869 | name_len2 = strnlen(toName, PATH_MAX); | |
1870 | name_len2++; /* trailing null */ | |
1871 | pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */ | |
1872 | strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2); | |
1873 | name_len2++; /* trailing null */ | |
1874 | name_len2++; /* signature byte */ | |
1875 | } | |
1876 | ||
1877 | count = 1 /* 1st signature byte */ + name_len + name_len2; | |
1878 | pSMB->hdr.smb_buf_length += count; | |
1879 | pSMB->ByteCount = cpu_to_le16(count); | |
1880 | ||
1881 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1882 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
1883 | if (rc) { | |
1884 | cFYI(1, ("Send error in copy = %d with %d files copied", | |
1885 | rc, le16_to_cpu(pSMBr->CopyCount))); | |
1886 | } | |
1887 | if (pSMB) | |
1888 | cifs_buf_release(pSMB); | |
1889 | ||
1890 | if (rc == -EAGAIN) | |
1891 | goto copyRetry; | |
1892 | ||
1893 | return rc; | |
1894 | } | |
1895 | ||
1896 | int | |
1897 | CIFSUnixCreateSymLink(const int xid, struct cifsTconInfo *tcon, | |
1898 | const char *fromName, const char *toName, | |
1899 | const struct nls_table *nls_codepage) | |
1900 | { | |
1901 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
1902 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
1903 | char *data_offset; | |
1904 | int name_len; | |
1905 | int name_len_target; | |
1906 | int rc = 0; | |
1907 | int bytes_returned = 0; | |
1908 | __u16 params, param_offset, offset, byte_count; | |
1909 | ||
1910 | cFYI(1, ("In Symlink Unix style")); | |
1911 | createSymLinkRetry: | |
1912 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
1913 | (void **) &pSMBr); | |
1914 | if (rc) | |
1915 | return rc; | |
1916 | ||
1917 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1918 | name_len = | |
e89dc920 | 1919 | cifs_strtoUCS((__le16 *) pSMB->FileName, fromName, PATH_MAX |
1da177e4 LT |
1920 | /* find define for this maxpathcomponent */ |
1921 | , nls_codepage); | |
1922 | name_len++; /* trailing null */ | |
1923 | name_len *= 2; | |
1924 | ||
1925 | } else { /* BB improve the check for buffer overruns BB */ | |
1926 | name_len = strnlen(fromName, PATH_MAX); | |
1927 | name_len++; /* trailing null */ | |
1928 | strncpy(pSMB->FileName, fromName, name_len); | |
1929 | } | |
1930 | params = 6 + name_len; | |
1931 | pSMB->MaxSetupCount = 0; | |
1932 | pSMB->Reserved = 0; | |
1933 | pSMB->Flags = 0; | |
1934 | pSMB->Timeout = 0; | |
1935 | pSMB->Reserved2 = 0; | |
1936 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
1937 | InformationLevel) - 4; | |
1938 | offset = param_offset + params; | |
1939 | ||
1940 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
1941 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1942 | name_len_target = | |
e89dc920 | 1943 | cifs_strtoUCS((__le16 *) data_offset, toName, PATH_MAX |
1da177e4 LT |
1944 | /* find define for this maxpathcomponent */ |
1945 | , nls_codepage); | |
1946 | name_len_target++; /* trailing null */ | |
1947 | name_len_target *= 2; | |
1948 | } else { /* BB improve the check for buffer overruns BB */ | |
1949 | name_len_target = strnlen(toName, PATH_MAX); | |
1950 | name_len_target++; /* trailing null */ | |
1951 | strncpy(data_offset, toName, name_len_target); | |
1952 | } | |
1953 | ||
1954 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
1955 | /* BB find exact max on data count below from sess */ | |
1956 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1957 | pSMB->SetupCount = 1; | |
1958 | pSMB->Reserved3 = 0; | |
1959 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
1960 | byte_count = 3 /* pad */ + params + name_len_target; | |
1961 | pSMB->DataCount = cpu_to_le16(name_len_target); | |
1962 | pSMB->ParameterCount = cpu_to_le16(params); | |
1963 | pSMB->TotalDataCount = pSMB->DataCount; | |
1964 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
1965 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
1966 | pSMB->DataOffset = cpu_to_le16(offset); | |
1967 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_LINK); | |
1968 | pSMB->Reserved4 = 0; | |
1969 | pSMB->hdr.smb_buf_length += byte_count; | |
1970 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
1971 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1972 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 1973 | cifs_stats_inc(&tcon->num_symlinks); |
1da177e4 LT |
1974 | if (rc) { |
1975 | cFYI(1, | |
1976 | ("Send error in SetPathInfo (create symlink) = %d", | |
1977 | rc)); | |
1978 | } | |
1979 | ||
1980 | if (pSMB) | |
1981 | cifs_buf_release(pSMB); | |
1982 | ||
1983 | if (rc == -EAGAIN) | |
1984 | goto createSymLinkRetry; | |
1985 | ||
1986 | return rc; | |
1987 | } | |
1988 | ||
1989 | int | |
1990 | CIFSUnixCreateHardLink(const int xid, struct cifsTconInfo *tcon, | |
1991 | const char *fromName, const char *toName, | |
737b758c | 1992 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
1993 | { |
1994 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
1995 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
1996 | char *data_offset; | |
1997 | int name_len; | |
1998 | int name_len_target; | |
1999 | int rc = 0; | |
2000 | int bytes_returned = 0; | |
2001 | __u16 params, param_offset, offset, byte_count; | |
2002 | ||
2003 | cFYI(1, ("In Create Hard link Unix style")); | |
2004 | createHardLinkRetry: | |
2005 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2006 | (void **) &pSMBr); | |
2007 | if (rc) | |
2008 | return rc; | |
2009 | ||
2010 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
b1a45695 | 2011 | name_len = cifsConvertToUCS((__le16 *) pSMB->FileName, toName, |
737b758c | 2012 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2013 | name_len++; /* trailing null */ |
2014 | name_len *= 2; | |
2015 | ||
2016 | } else { /* BB improve the check for buffer overruns BB */ | |
2017 | name_len = strnlen(toName, PATH_MAX); | |
2018 | name_len++; /* trailing null */ | |
2019 | strncpy(pSMB->FileName, toName, name_len); | |
2020 | } | |
2021 | params = 6 + name_len; | |
2022 | pSMB->MaxSetupCount = 0; | |
2023 | pSMB->Reserved = 0; | |
2024 | pSMB->Flags = 0; | |
2025 | pSMB->Timeout = 0; | |
2026 | pSMB->Reserved2 = 0; | |
2027 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
2028 | InformationLevel) - 4; | |
2029 | offset = param_offset + params; | |
2030 | ||
2031 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
2032 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2033 | name_len_target = | |
b1a45695 | 2034 | cifsConvertToUCS((__le16 *) data_offset, fromName, PATH_MAX, |
737b758c | 2035 | nls_codepage, remap); |
1da177e4 LT |
2036 | name_len_target++; /* trailing null */ |
2037 | name_len_target *= 2; | |
2038 | } else { /* BB improve the check for buffer overruns BB */ | |
2039 | name_len_target = strnlen(fromName, PATH_MAX); | |
2040 | name_len_target++; /* trailing null */ | |
2041 | strncpy(data_offset, fromName, name_len_target); | |
2042 | } | |
2043 | ||
2044 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
2045 | /* BB find exact max on data count below from sess*/ | |
2046 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
2047 | pSMB->SetupCount = 1; | |
2048 | pSMB->Reserved3 = 0; | |
2049 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
2050 | byte_count = 3 /* pad */ + params + name_len_target; | |
2051 | pSMB->ParameterCount = cpu_to_le16(params); | |
2052 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
2053 | pSMB->DataCount = cpu_to_le16(name_len_target); | |
2054 | pSMB->TotalDataCount = pSMB->DataCount; | |
2055 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
2056 | pSMB->DataOffset = cpu_to_le16(offset); | |
2057 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_HLINK); | |
2058 | pSMB->Reserved4 = 0; | |
2059 | pSMB->hdr.smb_buf_length += byte_count; | |
2060 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2061 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2062 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 2063 | cifs_stats_inc(&tcon->num_hardlinks); |
1da177e4 LT |
2064 | if (rc) { |
2065 | cFYI(1, ("Send error in SetPathInfo (hard link) = %d", rc)); | |
2066 | } | |
2067 | ||
2068 | cifs_buf_release(pSMB); | |
2069 | if (rc == -EAGAIN) | |
2070 | goto createHardLinkRetry; | |
2071 | ||
2072 | return rc; | |
2073 | } | |
2074 | ||
2075 | int | |
2076 | CIFSCreateHardLink(const int xid, struct cifsTconInfo *tcon, | |
2077 | const char *fromName, const char *toName, | |
737b758c | 2078 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
2079 | { |
2080 | int rc = 0; | |
2081 | NT_RENAME_REQ *pSMB = NULL; | |
2082 | RENAME_RSP *pSMBr = NULL; | |
2083 | int bytes_returned; | |
2084 | int name_len, name_len2; | |
2085 | __u16 count; | |
2086 | ||
2087 | cFYI(1, ("In CIFSCreateHardLink")); | |
2088 | winCreateHardLinkRetry: | |
2089 | ||
2090 | rc = smb_init(SMB_COM_NT_RENAME, 4, tcon, (void **) &pSMB, | |
2091 | (void **) &pSMBr); | |
2092 | if (rc) | |
2093 | return rc; | |
2094 | ||
2095 | pSMB->SearchAttributes = | |
2096 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | | |
2097 | ATTR_DIRECTORY); | |
2098 | pSMB->Flags = cpu_to_le16(CREATE_HARD_LINK); | |
2099 | pSMB->ClusterCount = 0; | |
2100 | ||
2101 | pSMB->BufferFormat = 0x04; | |
2102 | ||
2103 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2104 | name_len = | |
b1a45695 | 2105 | cifsConvertToUCS((__le16 *) pSMB->OldFileName, fromName, |
737b758c | 2106 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2107 | name_len++; /* trailing null */ |
2108 | name_len *= 2; | |
2109 | pSMB->OldFileName[name_len] = 0; /* pad */ | |
2110 | pSMB->OldFileName[name_len + 1] = 0x04; | |
2111 | name_len2 = | |
b1a45695 | 2112 | cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2], |
737b758c | 2113 | toName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2114 | name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; |
2115 | name_len2 *= 2; /* convert to bytes */ | |
2116 | } else { /* BB improve the check for buffer overruns BB */ | |
2117 | name_len = strnlen(fromName, PATH_MAX); | |
2118 | name_len++; /* trailing null */ | |
2119 | strncpy(pSMB->OldFileName, fromName, name_len); | |
2120 | name_len2 = strnlen(toName, PATH_MAX); | |
2121 | name_len2++; /* trailing null */ | |
2122 | pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */ | |
2123 | strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2); | |
2124 | name_len2++; /* trailing null */ | |
2125 | name_len2++; /* signature byte */ | |
2126 | } | |
2127 | ||
2128 | count = 1 /* string type byte */ + name_len + name_len2; | |
2129 | pSMB->hdr.smb_buf_length += count; | |
2130 | pSMB->ByteCount = cpu_to_le16(count); | |
2131 | ||
2132 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2133 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 2134 | cifs_stats_inc(&tcon->num_hardlinks); |
1da177e4 LT |
2135 | if (rc) { |
2136 | cFYI(1, ("Send error in hard link (NT rename) = %d", rc)); | |
2137 | } | |
2138 | cifs_buf_release(pSMB); | |
2139 | if (rc == -EAGAIN) | |
2140 | goto winCreateHardLinkRetry; | |
2141 | ||
2142 | return rc; | |
2143 | } | |
2144 | ||
2145 | int | |
2146 | CIFSSMBUnixQuerySymLink(const int xid, struct cifsTconInfo *tcon, | |
2147 | const unsigned char *searchName, | |
2148 | char *symlinkinfo, const int buflen, | |
2149 | const struct nls_table *nls_codepage) | |
2150 | { | |
2151 | /* SMB_QUERY_FILE_UNIX_LINK */ | |
2152 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
2153 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
2154 | int rc = 0; | |
2155 | int bytes_returned; | |
2156 | int name_len; | |
2157 | __u16 params, byte_count; | |
2158 | ||
2159 | cFYI(1, ("In QPathSymLinkInfo (Unix) for path %s", searchName)); | |
2160 | ||
2161 | querySymLinkRetry: | |
2162 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2163 | (void **) &pSMBr); | |
2164 | if (rc) | |
2165 | return rc; | |
2166 | ||
2167 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2168 | name_len = | |
e89dc920 | 2169 | cifs_strtoUCS((__le16 *) pSMB->FileName, searchName, PATH_MAX |
1da177e4 LT |
2170 | /* find define for this maxpathcomponent */ |
2171 | , nls_codepage); | |
2172 | name_len++; /* trailing null */ | |
2173 | name_len *= 2; | |
2174 | } else { /* BB improve the check for buffer overruns BB */ | |
2175 | name_len = strnlen(searchName, PATH_MAX); | |
2176 | name_len++; /* trailing null */ | |
2177 | strncpy(pSMB->FileName, searchName, name_len); | |
2178 | } | |
2179 | ||
2180 | params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ; | |
2181 | pSMB->TotalDataCount = 0; | |
2182 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
2183 | /* BB find exact max data count below from sess structure BB */ | |
2184 | pSMB->MaxDataCount = cpu_to_le16(4000); | |
2185 | pSMB->MaxSetupCount = 0; | |
2186 | pSMB->Reserved = 0; | |
2187 | pSMB->Flags = 0; | |
2188 | pSMB->Timeout = 0; | |
2189 | pSMB->Reserved2 = 0; | |
2190 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
2191 | struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); | |
2192 | pSMB->DataCount = 0; | |
2193 | pSMB->DataOffset = 0; | |
2194 | pSMB->SetupCount = 1; | |
2195 | pSMB->Reserved3 = 0; | |
2196 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
2197 | byte_count = params + 1 /* pad */ ; | |
2198 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
2199 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2200 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_UNIX_LINK); | |
2201 | pSMB->Reserved4 = 0; | |
2202 | pSMB->hdr.smb_buf_length += byte_count; | |
2203 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2204 | ||
2205 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2206 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2207 | if (rc) { | |
2208 | cFYI(1, ("Send error in QuerySymLinkInfo = %d", rc)); | |
2209 | } else { | |
2210 | /* decode response */ | |
2211 | ||
2212 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
2213 | if (rc || (pSMBr->ByteCount < 2)) | |
2214 | /* BB also check enough total bytes returned */ | |
2215 | rc = -EIO; /* bad smb */ | |
2216 | else { | |
2217 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
2218 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); | |
2219 | ||
2220 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2221 | name_len = UniStrnlen((wchar_t *) ((char *) | |
2222 | &pSMBr->hdr.Protocol +data_offset), | |
2223 | min_t(const int, buflen,count) / 2); | |
737b758c | 2224 | /* BB FIXME investigate remapping reserved chars here */ |
1da177e4 | 2225 | cifs_strfromUCS_le(symlinkinfo, |
e89dc920 | 2226 | (__le16 *) ((char *)&pSMBr->hdr.Protocol + |
1da177e4 LT |
2227 | data_offset), |
2228 | name_len, nls_codepage); | |
2229 | } else { | |
2230 | strncpy(symlinkinfo, | |
2231 | (char *) &pSMBr->hdr.Protocol + | |
2232 | data_offset, | |
2233 | min_t(const int, buflen, count)); | |
2234 | } | |
2235 | symlinkinfo[buflen] = 0; | |
2236 | /* just in case so calling code does not go off the end of buffer */ | |
2237 | } | |
2238 | } | |
2239 | cifs_buf_release(pSMB); | |
2240 | if (rc == -EAGAIN) | |
2241 | goto querySymLinkRetry; | |
2242 | return rc; | |
2243 | } | |
2244 | ||
0a4b92c0 SF |
2245 | /* Initialize NT TRANSACT SMB into small smb request buffer. |
2246 | This assumes that all NT TRANSACTS that we init here have | |
2247 | total parm and data under about 400 bytes (to fit in small cifs | |
2248 | buffer size), which is the case so far, it easily fits. NB: | |
2249 | Setup words themselves and ByteCount | |
2250 | MaxSetupCount (size of returned setup area) and | |
2251 | MaxParameterCount (returned parms size) must be set by caller */ | |
2252 | static int | |
2253 | smb_init_ntransact(const __u16 sub_command, const int setup_count, | |
2254 | const int parm_len, struct cifsTconInfo *tcon, | |
2255 | void ** ret_buf) | |
2256 | { | |
2257 | int rc; | |
2258 | __u32 temp_offset; | |
2259 | struct smb_com_ntransact_req * pSMB; | |
2260 | ||
2261 | rc = small_smb_init(SMB_COM_NT_TRANSACT, 19 + setup_count, tcon, | |
2262 | (void **)&pSMB); | |
2263 | if (rc) | |
2264 | return rc; | |
2265 | *ret_buf = (void *)pSMB; | |
2266 | pSMB->Reserved = 0; | |
2267 | pSMB->TotalParameterCount = cpu_to_le32(parm_len); | |
2268 | pSMB->TotalDataCount = 0; | |
2269 | pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf - | |
2270 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
2271 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2272 | pSMB->DataCount = pSMB->TotalDataCount; | |
2273 | temp_offset = offsetof(struct smb_com_ntransact_req, Parms) + | |
2274 | (setup_count * 2) - 4 /* for rfc1001 length itself */; | |
2275 | pSMB->ParameterOffset = cpu_to_le32(temp_offset); | |
2276 | pSMB->DataOffset = cpu_to_le32(temp_offset + parm_len); | |
2277 | pSMB->SetupCount = setup_count; /* no need to le convert byte fields */ | |
2278 | pSMB->SubCommand = cpu_to_le16(sub_command); | |
2279 | return 0; | |
2280 | } | |
2281 | ||
2282 | static int | |
2283 | validate_ntransact(char * buf, char ** ppparm, char ** ppdata, | |
2284 | int * pdatalen, int * pparmlen) | |
2285 | { | |
2286 | char * end_of_smb; | |
2287 | __u32 data_count, data_offset, parm_count, parm_offset; | |
2288 | struct smb_com_ntransact_rsp * pSMBr; | |
2289 | ||
2290 | if(buf == NULL) | |
2291 | return -EINVAL; | |
2292 | ||
2293 | pSMBr = (struct smb_com_ntransact_rsp *)buf; | |
2294 | ||
2295 | /* ByteCount was converted from little endian in SendReceive */ | |
2296 | end_of_smb = 2 /* sizeof byte count */ + pSMBr->ByteCount + | |
2297 | (char *)&pSMBr->ByteCount; | |
2298 | ||
2299 | ||
2300 | data_offset = le32_to_cpu(pSMBr->DataOffset); | |
2301 | data_count = le32_to_cpu(pSMBr->DataCount); | |
2302 | parm_offset = le32_to_cpu(pSMBr->ParameterOffset); | |
2303 | parm_count = le32_to_cpu(pSMBr->ParameterCount); | |
2304 | ||
2305 | *ppparm = (char *)&pSMBr->hdr.Protocol + parm_offset; | |
2306 | *ppdata = (char *)&pSMBr->hdr.Protocol + data_offset; | |
2307 | ||
2308 | /* should we also check that parm and data areas do not overlap? */ | |
2309 | if(*ppparm > end_of_smb) { | |
2310 | cFYI(1,("parms start after end of smb")); | |
2311 | return -EINVAL; | |
2312 | } else if(parm_count + *ppparm > end_of_smb) { | |
2313 | cFYI(1,("parm end after end of smb")); | |
2314 | return -EINVAL; | |
2315 | } else if(*ppdata > end_of_smb) { | |
2316 | cFYI(1,("data starts after end of smb")); | |
2317 | return -EINVAL; | |
2318 | } else if(data_count + *ppdata > end_of_smb) { | |
2319 | cFYI(1,("data %p + count %d (%p) ends after end of smb %p start %p", | |
2320 | *ppdata, data_count, (data_count + *ppdata), end_of_smb, pSMBr)); /* BB FIXME */ | |
2321 | return -EINVAL; | |
2322 | } else if(parm_count + data_count > pSMBr->ByteCount) { | |
2323 | cFYI(1,("parm count and data count larger than SMB")); | |
2324 | return -EINVAL; | |
2325 | } | |
2326 | return 0; | |
2327 | } | |
2328 | ||
1da177e4 LT |
2329 | int |
2330 | CIFSSMBQueryReparseLinkInfo(const int xid, struct cifsTconInfo *tcon, | |
2331 | const unsigned char *searchName, | |
2332 | char *symlinkinfo, const int buflen,__u16 fid, | |
2333 | const struct nls_table *nls_codepage) | |
2334 | { | |
2335 | int rc = 0; | |
2336 | int bytes_returned; | |
2337 | int name_len; | |
2338 | struct smb_com_transaction_ioctl_req * pSMB; | |
2339 | struct smb_com_transaction_ioctl_rsp * pSMBr; | |
2340 | ||
2341 | cFYI(1, ("In Windows reparse style QueryLink for path %s", searchName)); | |
2342 | rc = smb_init(SMB_COM_NT_TRANSACT, 23, tcon, (void **) &pSMB, | |
2343 | (void **) &pSMBr); | |
2344 | if (rc) | |
2345 | return rc; | |
2346 | ||
2347 | pSMB->TotalParameterCount = 0 ; | |
2348 | pSMB->TotalDataCount = 0; | |
2349 | pSMB->MaxParameterCount = cpu_to_le32(2); | |
2350 | /* BB find exact data count max from sess structure BB */ | |
0a4b92c0 SF |
2351 | pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf - |
2352 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
1da177e4 LT |
2353 | pSMB->MaxSetupCount = 4; |
2354 | pSMB->Reserved = 0; | |
2355 | pSMB->ParameterOffset = 0; | |
2356 | pSMB->DataCount = 0; | |
2357 | pSMB->DataOffset = 0; | |
2358 | pSMB->SetupCount = 4; | |
2359 | pSMB->SubCommand = cpu_to_le16(NT_TRANSACT_IOCTL); | |
2360 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2361 | pSMB->FunctionCode = cpu_to_le32(FSCTL_GET_REPARSE_POINT); | |
2362 | pSMB->IsFsctl = 1; /* FSCTL */ | |
2363 | pSMB->IsRootFlag = 0; | |
2364 | pSMB->Fid = fid; /* file handle always le */ | |
2365 | pSMB->ByteCount = 0; | |
2366 | ||
2367 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2368 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2369 | if (rc) { | |
2370 | cFYI(1, ("Send error in QueryReparseLinkInfo = %d", rc)); | |
2371 | } else { /* decode response */ | |
2372 | __u32 data_offset = le32_to_cpu(pSMBr->DataOffset); | |
2373 | __u32 data_count = le32_to_cpu(pSMBr->DataCount); | |
2374 | if ((pSMBr->ByteCount < 2) || (data_offset > 512)) | |
2375 | /* BB also check enough total bytes returned */ | |
2376 | rc = -EIO; /* bad smb */ | |
2377 | else { | |
2378 | if(data_count && (data_count < 2048)) { | |
0a4b92c0 SF |
2379 | char * end_of_smb = 2 /* sizeof byte count */ + |
2380 | pSMBr->ByteCount + | |
2381 | (char *)&pSMBr->ByteCount; | |
1da177e4 LT |
2382 | |
2383 | struct reparse_data * reparse_buf = (struct reparse_data *) | |
2384 | ((char *)&pSMBr->hdr.Protocol + data_offset); | |
2385 | if((char*)reparse_buf >= end_of_smb) { | |
2386 | rc = -EIO; | |
2387 | goto qreparse_out; | |
2388 | } | |
2389 | if((reparse_buf->LinkNamesBuf + | |
2390 | reparse_buf->TargetNameOffset + | |
2391 | reparse_buf->TargetNameLen) > | |
2392 | end_of_smb) { | |
2393 | cFYI(1,("reparse buf extended beyond SMB")); | |
2394 | rc = -EIO; | |
2395 | goto qreparse_out; | |
2396 | } | |
2397 | ||
2398 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2399 | name_len = UniStrnlen((wchar_t *) | |
2400 | (reparse_buf->LinkNamesBuf + | |
2401 | reparse_buf->TargetNameOffset), | |
2402 | min(buflen/2, reparse_buf->TargetNameLen / 2)); | |
2403 | cifs_strfromUCS_le(symlinkinfo, | |
e89dc920 | 2404 | (__le16 *) (reparse_buf->LinkNamesBuf + |
1da177e4 LT |
2405 | reparse_buf->TargetNameOffset), |
2406 | name_len, nls_codepage); | |
2407 | } else { /* ASCII names */ | |
2408 | strncpy(symlinkinfo,reparse_buf->LinkNamesBuf + | |
2409 | reparse_buf->TargetNameOffset, | |
2410 | min_t(const int, buflen, reparse_buf->TargetNameLen)); | |
2411 | } | |
2412 | } else { | |
2413 | rc = -EIO; | |
2414 | cFYI(1,("Invalid return data count on get reparse info ioctl")); | |
2415 | } | |
2416 | symlinkinfo[buflen] = 0; /* just in case so the caller | |
2417 | does not go off the end of the buffer */ | |
26a21b98 | 2418 | cFYI(1,("readlink result - %s",symlinkinfo)); |
1da177e4 LT |
2419 | } |
2420 | } | |
2421 | qreparse_out: | |
4a6d87f1 | 2422 | cifs_buf_release(pSMB); |
1da177e4 LT |
2423 | |
2424 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
2425 | since file handle passed in no longer valid */ | |
2426 | ||
2427 | return rc; | |
2428 | } | |
2429 | ||
2430 | #ifdef CONFIG_CIFS_POSIX | |
2431 | ||
2432 | /*Convert an Access Control Entry from wire format to local POSIX xattr format*/ | |
2433 | static void cifs_convert_ace(posix_acl_xattr_entry * ace, struct cifs_posix_ace * cifs_ace) | |
2434 | { | |
2435 | /* u8 cifs fields do not need le conversion */ | |
ff7feac9 SF |
2436 | ace->e_perm = cpu_to_le16(cifs_ace->cifs_e_perm); |
2437 | ace->e_tag = cpu_to_le16(cifs_ace->cifs_e_tag); | |
2438 | ace->e_id = cpu_to_le32(le64_to_cpu(cifs_ace->cifs_uid)); | |
1da177e4 LT |
2439 | /* cFYI(1,("perm %d tag %d id %d",ace->e_perm,ace->e_tag,ace->e_id)); */ |
2440 | ||
2441 | return; | |
2442 | } | |
2443 | ||
2444 | /* Convert ACL from CIFS POSIX wire format to local Linux POSIX ACL xattr */ | |
737b758c SF |
2445 | static int cifs_copy_posix_acl(char * trgt,char * src, const int buflen, |
2446 | const int acl_type,const int size_of_data_area) | |
1da177e4 LT |
2447 | { |
2448 | int size = 0; | |
2449 | int i; | |
2450 | __u16 count; | |
2451 | struct cifs_posix_ace * pACE; | |
2452 | struct cifs_posix_acl * cifs_acl = (struct cifs_posix_acl *)src; | |
2453 | posix_acl_xattr_header * local_acl = (posix_acl_xattr_header *)trgt; | |
2454 | ||
2455 | if (le16_to_cpu(cifs_acl->version) != CIFS_ACL_VERSION) | |
2456 | return -EOPNOTSUPP; | |
2457 | ||
2458 | if(acl_type & ACL_TYPE_ACCESS) { | |
2459 | count = le16_to_cpu(cifs_acl->access_entry_count); | |
2460 | pACE = &cifs_acl->ace_array[0]; | |
2461 | size = sizeof(struct cifs_posix_acl); | |
2462 | size += sizeof(struct cifs_posix_ace) * count; | |
2463 | /* check if we would go beyond end of SMB */ | |
2464 | if(size_of_data_area < size) { | |
2465 | cFYI(1,("bad CIFS POSIX ACL size %d vs. %d",size_of_data_area,size)); | |
2466 | return -EINVAL; | |
2467 | } | |
2468 | } else if(acl_type & ACL_TYPE_DEFAULT) { | |
2469 | count = le16_to_cpu(cifs_acl->access_entry_count); | |
2470 | size = sizeof(struct cifs_posix_acl); | |
2471 | size += sizeof(struct cifs_posix_ace) * count; | |
2472 | /* skip past access ACEs to get to default ACEs */ | |
2473 | pACE = &cifs_acl->ace_array[count]; | |
2474 | count = le16_to_cpu(cifs_acl->default_entry_count); | |
2475 | size += sizeof(struct cifs_posix_ace) * count; | |
2476 | /* check if we would go beyond end of SMB */ | |
2477 | if(size_of_data_area < size) | |
2478 | return -EINVAL; | |
2479 | } else { | |
2480 | /* illegal type */ | |
2481 | return -EINVAL; | |
2482 | } | |
2483 | ||
2484 | size = posix_acl_xattr_size(count); | |
2485 | if((buflen == 0) || (local_acl == NULL)) { | |
2486 | /* used to query ACL EA size */ | |
2487 | } else if(size > buflen) { | |
2488 | return -ERANGE; | |
2489 | } else /* buffer big enough */ { | |
ff7feac9 | 2490 | local_acl->a_version = cpu_to_le32(POSIX_ACL_XATTR_VERSION); |
1da177e4 LT |
2491 | for(i = 0;i < count ;i++) { |
2492 | cifs_convert_ace(&local_acl->a_entries[i],pACE); | |
2493 | pACE ++; | |
2494 | } | |
2495 | } | |
2496 | return size; | |
2497 | } | |
2498 | ||
2499 | static __u16 convert_ace_to_cifs_ace(struct cifs_posix_ace * cifs_ace, | |
2500 | const posix_acl_xattr_entry * local_ace) | |
2501 | { | |
2502 | __u16 rc = 0; /* 0 = ACL converted ok */ | |
2503 | ||
ff7feac9 SF |
2504 | cifs_ace->cifs_e_perm = le16_to_cpu(local_ace->e_perm); |
2505 | cifs_ace->cifs_e_tag = le16_to_cpu(local_ace->e_tag); | |
1da177e4 | 2506 | /* BB is there a better way to handle the large uid? */ |
ff7feac9 | 2507 | if(local_ace->e_id == cpu_to_le32(-1)) { |
1da177e4 LT |
2508 | /* Probably no need to le convert -1 on any arch but can not hurt */ |
2509 | cifs_ace->cifs_uid = cpu_to_le64(-1); | |
2510 | } else | |
ff7feac9 | 2511 | cifs_ace->cifs_uid = cpu_to_le64(le32_to_cpu(local_ace->e_id)); |
1da177e4 LT |
2512 | /*cFYI(1,("perm %d tag %d id %d",ace->e_perm,ace->e_tag,ace->e_id));*/ |
2513 | return rc; | |
2514 | } | |
2515 | ||
2516 | /* Convert ACL from local Linux POSIX xattr to CIFS POSIX ACL wire format */ | |
2517 | static __u16 ACL_to_cifs_posix(char * parm_data,const char * pACL,const int buflen, | |
2518 | const int acl_type) | |
2519 | { | |
2520 | __u16 rc = 0; | |
2521 | struct cifs_posix_acl * cifs_acl = (struct cifs_posix_acl *)parm_data; | |
2522 | posix_acl_xattr_header * local_acl = (posix_acl_xattr_header *)pACL; | |
2523 | int count; | |
2524 | int i; | |
2525 | ||
2526 | if((buflen == 0) || (pACL == NULL) || (cifs_acl == NULL)) | |
2527 | return 0; | |
2528 | ||
2529 | count = posix_acl_xattr_count((size_t)buflen); | |
2530 | cFYI(1,("setting acl with %d entries from buf of length %d and version of %d", | |
ff7feac9 SF |
2531 | count, buflen, le32_to_cpu(local_acl->a_version))); |
2532 | if(le32_to_cpu(local_acl->a_version) != 2) { | |
2533 | cFYI(1,("unknown POSIX ACL version %d", | |
2534 | le32_to_cpu(local_acl->a_version))); | |
1da177e4 LT |
2535 | return 0; |
2536 | } | |
2537 | cifs_acl->version = cpu_to_le16(1); | |
2538 | if(acl_type == ACL_TYPE_ACCESS) | |
ff7feac9 | 2539 | cifs_acl->access_entry_count = cpu_to_le16(count); |
1da177e4 | 2540 | else if(acl_type == ACL_TYPE_DEFAULT) |
ff7feac9 | 2541 | cifs_acl->default_entry_count = cpu_to_le16(count); |
1da177e4 LT |
2542 | else { |
2543 | cFYI(1,("unknown ACL type %d",acl_type)); | |
2544 | return 0; | |
2545 | } | |
2546 | for(i=0;i<count;i++) { | |
2547 | rc = convert_ace_to_cifs_ace(&cifs_acl->ace_array[i], | |
2548 | &local_acl->a_entries[i]); | |
2549 | if(rc != 0) { | |
2550 | /* ACE not converted */ | |
2551 | break; | |
2552 | } | |
2553 | } | |
2554 | if(rc == 0) { | |
2555 | rc = (__u16)(count * sizeof(struct cifs_posix_ace)); | |
2556 | rc += sizeof(struct cifs_posix_acl); | |
2557 | /* BB add check to make sure ACL does not overflow SMB */ | |
2558 | } | |
2559 | return rc; | |
2560 | } | |
2561 | ||
2562 | int | |
2563 | CIFSSMBGetPosixACL(const int xid, struct cifsTconInfo *tcon, | |
2564 | const unsigned char *searchName, | |
2565 | char *acl_inf, const int buflen, const int acl_type, | |
737b758c | 2566 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
2567 | { |
2568 | /* SMB_QUERY_POSIX_ACL */ | |
2569 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
2570 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
2571 | int rc = 0; | |
2572 | int bytes_returned; | |
2573 | int name_len; | |
2574 | __u16 params, byte_count; | |
2575 | ||
2576 | cFYI(1, ("In GetPosixACL (Unix) for path %s", searchName)); | |
2577 | ||
2578 | queryAclRetry: | |
2579 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2580 | (void **) &pSMBr); | |
2581 | if (rc) | |
2582 | return rc; | |
2583 | ||
2584 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2585 | name_len = | |
b1a45695 | 2586 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 2587 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2588 | name_len++; /* trailing null */ |
2589 | name_len *= 2; | |
2590 | pSMB->FileName[name_len] = 0; | |
2591 | pSMB->FileName[name_len+1] = 0; | |
2592 | } else { /* BB improve the check for buffer overruns BB */ | |
2593 | name_len = strnlen(searchName, PATH_MAX); | |
2594 | name_len++; /* trailing null */ | |
2595 | strncpy(pSMB->FileName, searchName, name_len); | |
2596 | } | |
2597 | ||
2598 | params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ; | |
2599 | pSMB->TotalDataCount = 0; | |
2600 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
2601 | /* BB find exact max data count below from sess structure BB */ | |
2602 | pSMB->MaxDataCount = cpu_to_le16(4000); | |
2603 | pSMB->MaxSetupCount = 0; | |
2604 | pSMB->Reserved = 0; | |
2605 | pSMB->Flags = 0; | |
2606 | pSMB->Timeout = 0; | |
2607 | pSMB->Reserved2 = 0; | |
2608 | pSMB->ParameterOffset = cpu_to_le16( | |
2609 | offsetof(struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); | |
2610 | pSMB->DataCount = 0; | |
2611 | pSMB->DataOffset = 0; | |
2612 | pSMB->SetupCount = 1; | |
2613 | pSMB->Reserved3 = 0; | |
2614 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
2615 | byte_count = params + 1 /* pad */ ; | |
2616 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
2617 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2618 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_POSIX_ACL); | |
2619 | pSMB->Reserved4 = 0; | |
2620 | pSMB->hdr.smb_buf_length += byte_count; | |
2621 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2622 | ||
2623 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2624 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
0a4b92c0 | 2625 | cifs_stats_inc(&tcon->num_acl_get); |
1da177e4 LT |
2626 | if (rc) { |
2627 | cFYI(1, ("Send error in Query POSIX ACL = %d", rc)); | |
2628 | } else { | |
2629 | /* decode response */ | |
2630 | ||
2631 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
2632 | if (rc || (pSMBr->ByteCount < 2)) | |
2633 | /* BB also check enough total bytes returned */ | |
2634 | rc = -EIO; /* bad smb */ | |
2635 | else { | |
2636 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
2637 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); | |
2638 | rc = cifs_copy_posix_acl(acl_inf, | |
2639 | (char *)&pSMBr->hdr.Protocol+data_offset, | |
2640 | buflen,acl_type,count); | |
2641 | } | |
2642 | } | |
2643 | cifs_buf_release(pSMB); | |
2644 | if (rc == -EAGAIN) | |
2645 | goto queryAclRetry; | |
2646 | return rc; | |
2647 | } | |
2648 | ||
2649 | int | |
2650 | CIFSSMBSetPosixACL(const int xid, struct cifsTconInfo *tcon, | |
2651 | const unsigned char *fileName, | |
737b758c SF |
2652 | const char *local_acl, const int buflen, |
2653 | const int acl_type, | |
2654 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
2655 | { |
2656 | struct smb_com_transaction2_spi_req *pSMB = NULL; | |
2657 | struct smb_com_transaction2_spi_rsp *pSMBr = NULL; | |
2658 | char *parm_data; | |
2659 | int name_len; | |
2660 | int rc = 0; | |
2661 | int bytes_returned = 0; | |
2662 | __u16 params, byte_count, data_count, param_offset, offset; | |
2663 | ||
2664 | cFYI(1, ("In SetPosixACL (Unix) for path %s", fileName)); | |
2665 | setAclRetry: | |
2666 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2667 | (void **) &pSMBr); | |
2668 | if (rc) | |
2669 | return rc; | |
2670 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2671 | name_len = | |
b1a45695 | 2672 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 2673 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2674 | name_len++; /* trailing null */ |
2675 | name_len *= 2; | |
2676 | } else { /* BB improve the check for buffer overruns BB */ | |
2677 | name_len = strnlen(fileName, PATH_MAX); | |
2678 | name_len++; /* trailing null */ | |
2679 | strncpy(pSMB->FileName, fileName, name_len); | |
2680 | } | |
2681 | params = 6 + name_len; | |
2682 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
2683 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB size from sess */ | |
2684 | pSMB->MaxSetupCount = 0; | |
2685 | pSMB->Reserved = 0; | |
2686 | pSMB->Flags = 0; | |
2687 | pSMB->Timeout = 0; | |
2688 | pSMB->Reserved2 = 0; | |
2689 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
2690 | InformationLevel) - 4; | |
2691 | offset = param_offset + params; | |
2692 | parm_data = ((char *) &pSMB->hdr.Protocol) + offset; | |
2693 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
2694 | ||
2695 | /* convert to on the wire format for POSIX ACL */ | |
2696 | data_count = ACL_to_cifs_posix(parm_data,local_acl,buflen,acl_type); | |
2697 | ||
2698 | if(data_count == 0) { | |
2699 | rc = -EOPNOTSUPP; | |
2700 | goto setACLerrorExit; | |
2701 | } | |
2702 | pSMB->DataOffset = cpu_to_le16(offset); | |
2703 | pSMB->SetupCount = 1; | |
2704 | pSMB->Reserved3 = 0; | |
2705 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
2706 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_POSIX_ACL); | |
2707 | byte_count = 3 /* pad */ + params + data_count; | |
2708 | pSMB->DataCount = cpu_to_le16(data_count); | |
2709 | pSMB->TotalDataCount = pSMB->DataCount; | |
2710 | pSMB->ParameterCount = cpu_to_le16(params); | |
2711 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
2712 | pSMB->Reserved4 = 0; | |
2713 | pSMB->hdr.smb_buf_length += byte_count; | |
2714 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2715 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2716 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2717 | if (rc) { | |
2718 | cFYI(1, ("Set POSIX ACL returned %d", rc)); | |
2719 | } | |
2720 | ||
2721 | setACLerrorExit: | |
2722 | cifs_buf_release(pSMB); | |
2723 | if (rc == -EAGAIN) | |
2724 | goto setAclRetry; | |
2725 | return rc; | |
2726 | } | |
2727 | ||
f654bac2 SF |
2728 | /* BB fix tabs in this function FIXME BB */ |
2729 | int | |
2730 | CIFSGetExtAttr(const int xid, struct cifsTconInfo *tcon, | |
2731 | const int netfid, __u64 * pExtAttrBits, __u64 *pMask) | |
2732 | { | |
2733 | int rc = 0; | |
2734 | struct smb_t2_qfi_req *pSMB = NULL; | |
2735 | struct smb_t2_qfi_rsp *pSMBr = NULL; | |
2736 | int bytes_returned; | |
2737 | __u16 params, byte_count; | |
2738 | ||
2739 | cFYI(1,("In GetExtAttr")); | |
2740 | if(tcon == NULL) | |
2741 | return -ENODEV; | |
2742 | ||
2743 | GetExtAttrRetry: | |
2744 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2745 | (void **) &pSMBr); | |
2746 | if (rc) | |
2747 | return rc; | |
2748 | ||
c67593a0 | 2749 | params = 2 /* level */ +2 /* fid */; |
f654bac2 | 2750 | pSMB->t2.TotalDataCount = 0; |
c67593a0 | 2751 | pSMB->t2.MaxParameterCount = cpu_to_le16(4); |
f654bac2 SF |
2752 | /* BB find exact max data count below from sess structure BB */ |
2753 | pSMB->t2.MaxDataCount = cpu_to_le16(4000); | |
2754 | pSMB->t2.MaxSetupCount = 0; | |
2755 | pSMB->t2.Reserved = 0; | |
2756 | pSMB->t2.Flags = 0; | |
2757 | pSMB->t2.Timeout = 0; | |
2758 | pSMB->t2.Reserved2 = 0; | |
c67593a0 SF |
2759 | pSMB->t2.ParameterOffset = cpu_to_le16(offsetof(struct smb_t2_qfi_req, |
2760 | Fid) - 4); | |
f654bac2 SF |
2761 | pSMB->t2.DataCount = 0; |
2762 | pSMB->t2.DataOffset = 0; | |
2763 | pSMB->t2.SetupCount = 1; | |
2764 | pSMB->t2.Reserved3 = 0; | |
2765 | pSMB->t2.SubCommand = cpu_to_le16(TRANS2_QUERY_FILE_INFORMATION); | |
c67593a0 | 2766 | byte_count = params + 1 /* pad */ ; |
f654bac2 SF |
2767 | pSMB->t2.TotalParameterCount = cpu_to_le16(params); |
2768 | pSMB->t2.ParameterCount = pSMB->t2.TotalParameterCount; | |
2769 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_ATTR_FLAGS); | |
c67593a0 | 2770 | pSMB->Pad = 0; |
f654bac2 SF |
2771 | pSMB->Fid = netfid; |
2772 | pSMB->hdr.smb_buf_length += byte_count; | |
2773 | pSMB->t2.ByteCount = cpu_to_le16(byte_count); | |
2774 | ||
2775 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2776 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2777 | if (rc) { | |
2778 | cFYI(1, ("error %d in GetExtAttr", rc)); | |
2779 | } else { | |
2780 | /* decode response */ | |
2781 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
2782 | if (rc || (pSMBr->ByteCount < 2)) | |
2783 | /* BB also check enough total bytes returned */ | |
2784 | /* If rc should we check for EOPNOSUPP and | |
2785 | disable the srvino flag? or in caller? */ | |
2786 | rc = -EIO; /* bad smb */ | |
2787 | else { | |
2788 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
2789 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); | |
2790 | struct file_chattr_info * pfinfo; | |
2791 | /* BB Do we need a cast or hash here ? */ | |
2792 | if(count != 16) { | |
2793 | cFYI(1, ("Illegal size ret in GetExtAttr")); | |
2794 | rc = -EIO; | |
2795 | goto GetExtAttrOut; | |
2796 | } | |
2797 | pfinfo = (struct file_chattr_info *) | |
2798 | (data_offset + (char *) &pSMBr->hdr.Protocol); | |
2799 | *pExtAttrBits = le64_to_cpu(pfinfo->mode); | |
2800 | *pMask = le64_to_cpu(pfinfo->mask); | |
2801 | } | |
2802 | } | |
2803 | GetExtAttrOut: | |
2804 | cifs_buf_release(pSMB); | |
2805 | if (rc == -EAGAIN) | |
2806 | goto GetExtAttrRetry; | |
2807 | return rc; | |
2808 | } | |
2809 | ||
2810 | ||
2811 | #endif /* CONFIG_POSIX */ | |
1da177e4 | 2812 | |
eeac8047 SF |
2813 | |
2814 | /* security id for everyone */ | |
2cd646a2 SF |
2815 | const static struct cifs_sid sid_everyone = |
2816 | {1, 1, {0, 0, 0, 0, 0, 0}, {0, 0, 0, 0}}; | |
eeac8047 | 2817 | /* group users */ |
2cd646a2 SF |
2818 | const static struct cifs_sid sid_user = |
2819 | {1, 2 , {0, 0, 0, 0, 0, 5}, {32, 545, 0, 0}}; | |
eeac8047 | 2820 | |
0a4b92c0 | 2821 | /* Convert CIFS ACL to POSIX form */ |
eeac8047 | 2822 | static int parse_sec_desc(struct cifs_sid * psec_desc, int acl_len) |
0a4b92c0 | 2823 | { |
0a4b92c0 SF |
2824 | return 0; |
2825 | } | |
2826 | ||
2827 | /* Get Security Descriptor (by handle) from remote server for a file or dir */ | |
2828 | int | |
2829 | CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid, | |
2830 | /* BB fix up return info */ char *acl_inf, const int buflen, | |
2831 | const int acl_type /* ACCESS/DEFAULT not sure implication */) | |
2832 | { | |
2833 | int rc = 0; | |
2834 | int buf_type = 0; | |
2835 | QUERY_SEC_DESC_REQ * pSMB; | |
2836 | struct kvec iov[1]; | |
2837 | ||
2838 | cFYI(1, ("GetCifsACL")); | |
2839 | ||
2840 | rc = smb_init_ntransact(NT_TRANSACT_QUERY_SECURITY_DESC, 0, | |
2841 | 8 /* parm len */, tcon, (void **) &pSMB); | |
2842 | if (rc) | |
2843 | return rc; | |
2844 | ||
2845 | pSMB->MaxParameterCount = cpu_to_le32(4); | |
2846 | /* BB TEST with big acls that might need to be e.g. larger than 16K */ | |
2847 | pSMB->MaxSetupCount = 0; | |
2848 | pSMB->Fid = fid; /* file handle always le */ | |
2849 | pSMB->AclFlags = cpu_to_le32(CIFS_ACL_OWNER | CIFS_ACL_GROUP | | |
2850 | CIFS_ACL_DACL); | |
2851 | pSMB->ByteCount = cpu_to_le16(11); /* 3 bytes pad + 8 bytes parm */ | |
2852 | pSMB->hdr.smb_buf_length += 11; | |
2853 | iov[0].iov_base = (char *)pSMB; | |
2854 | iov[0].iov_len = pSMB->hdr.smb_buf_length + 4; | |
2855 | ||
2856 | rc = SendReceive2(xid, tcon->ses, iov, 1 /* num iovec */, &buf_type, 0); | |
2857 | cifs_stats_inc(&tcon->num_acl_get); | |
2858 | if (rc) { | |
2859 | cFYI(1, ("Send error in QuerySecDesc = %d", rc)); | |
2860 | } else { /* decode response */ | |
d41f084a | 2861 | struct cifs_sid * psec_desc; |
0a4b92c0 SF |
2862 | __le32 * parm; |
2863 | int parm_len; | |
2864 | int data_len; | |
2865 | int acl_len; | |
2866 | struct smb_com_ntransact_rsp * pSMBr; | |
2867 | ||
2868 | /* validate_nttransact */ | |
2869 | rc = validate_ntransact(iov[0].iov_base, (char **)&parm, | |
2870 | (char **)&psec_desc, | |
2871 | &parm_len, &data_len); | |
2872 | ||
2873 | if(rc) | |
2874 | goto qsec_out; | |
2875 | pSMBr = (struct smb_com_ntransact_rsp *)iov[0].iov_base; | |
2876 | ||
2877 | cERROR(1,("smb %p parm %p data %p",pSMBr,parm,psec_desc)); /* BB removeme BB */ | |
2878 | ||
2879 | if (le32_to_cpu(pSMBr->ParameterCount) != 4) { | |
2880 | rc = -EIO; /* bad smb */ | |
2881 | goto qsec_out; | |
2882 | } | |
2883 | ||
2884 | /* BB check that data area is minimum length and as big as acl_len */ | |
2885 | ||
2886 | acl_len = le32_to_cpu(*(__le32 *)parm); | |
2887 | /* BB check if(acl_len > bufsize) */ | |
2888 | ||
2889 | parse_sec_desc(psec_desc, acl_len); | |
2890 | } | |
2891 | qsec_out: | |
2892 | if(buf_type == CIFS_SMALL_BUFFER) | |
2893 | cifs_small_buf_release(iov[0].iov_base); | |
2894 | else if(buf_type == CIFS_LARGE_BUFFER) | |
2895 | cifs_buf_release(iov[0].iov_base); | |
4b8f930f | 2896 | /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */ |
0a4b92c0 SF |
2897 | return rc; |
2898 | } | |
2899 | ||
6b8edfe0 SF |
2900 | /* Legacy Query Path Information call for lookup to old servers such |
2901 | as Win9x/WinME */ | |
2902 | int SMBQueryInformation(const int xid, struct cifsTconInfo *tcon, | |
2903 | const unsigned char *searchName, | |
2904 | FILE_ALL_INFO * pFinfo, | |
2905 | const struct nls_table *nls_codepage, int remap) | |
2906 | { | |
2907 | QUERY_INFORMATION_REQ * pSMB; | |
2908 | QUERY_INFORMATION_RSP * pSMBr; | |
2909 | int rc = 0; | |
2910 | int bytes_returned; | |
2911 | int name_len; | |
2912 | ||
2913 | cFYI(1, ("In SMBQPath path %s", searchName)); | |
2914 | QInfRetry: | |
2915 | rc = smb_init(SMB_COM_QUERY_INFORMATION, 0, tcon, (void **) &pSMB, | |
2916 | (void **) &pSMBr); | |
2917 | if (rc) | |
2918 | return rc; | |
2919 | ||
2920 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2921 | name_len = | |
2922 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, | |
2923 | PATH_MAX, nls_codepage, remap); | |
2924 | name_len++; /* trailing null */ | |
2925 | name_len *= 2; | |
2926 | } else { | |
2927 | name_len = strnlen(searchName, PATH_MAX); | |
2928 | name_len++; /* trailing null */ | |
2929 | strncpy(pSMB->FileName, searchName, name_len); | |
2930 | } | |
2931 | pSMB->BufferFormat = 0x04; | |
2932 | name_len++; /* account for buffer type byte */ | |
2933 | pSMB->hdr.smb_buf_length += (__u16) name_len; | |
2934 | pSMB->ByteCount = cpu_to_le16(name_len); | |
2935 | ||
2936 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2937 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2938 | if (rc) { | |
2939 | cFYI(1, ("Send error in QueryInfo = %d", rc)); | |
2940 | } else if (pFinfo) { /* decode response */ | |
1bd5bbcb SF |
2941 | struct timespec ts; |
2942 | __u32 time = le32_to_cpu(pSMBr->last_write_time); | |
2943 | /* BB FIXME - add time zone adjustment BB */ | |
6b8edfe0 | 2944 | memset(pFinfo, 0, sizeof(FILE_ALL_INFO)); |
1bd5bbcb SF |
2945 | ts.tv_nsec = 0; |
2946 | ts.tv_sec = time; | |
2947 | /* decode time fields */ | |
733f99ac | 2948 | pFinfo->ChangeTime = cpu_to_le64(cifs_UnixTimeToNT(ts)); |
1bd5bbcb SF |
2949 | pFinfo->LastWriteTime = pFinfo->ChangeTime; |
2950 | pFinfo->LastAccessTime = 0; | |
70ca734a SF |
2951 | pFinfo->AllocationSize = |
2952 | cpu_to_le64(le32_to_cpu(pSMBr->size)); | |
2953 | pFinfo->EndOfFile = pFinfo->AllocationSize; | |
2954 | pFinfo->Attributes = | |
2955 | cpu_to_le32(le16_to_cpu(pSMBr->attr)); | |
6b8edfe0 SF |
2956 | } else |
2957 | rc = -EIO; /* bad buffer passed in */ | |
2958 | ||
2959 | cifs_buf_release(pSMB); | |
2960 | ||
2961 | if (rc == -EAGAIN) | |
2962 | goto QInfRetry; | |
2963 | ||
2964 | return rc; | |
2965 | } | |
2966 | ||
2967 | ||
2968 | ||
2969 | ||
1da177e4 LT |
2970 | int |
2971 | CIFSSMBQPathInfo(const int xid, struct cifsTconInfo *tcon, | |
2972 | const unsigned char *searchName, | |
2973 | FILE_ALL_INFO * pFindData, | |
acf1a1b1 | 2974 | int legacy /* old style infolevel */, |
737b758c | 2975 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
2976 | { |
2977 | /* level 263 SMB_QUERY_FILE_ALL_INFO */ | |
2978 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
2979 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
2980 | int rc = 0; | |
2981 | int bytes_returned; | |
2982 | int name_len; | |
2983 | __u16 params, byte_count; | |
2984 | ||
2985 | /* cFYI(1, ("In QPathInfo path %s", searchName)); */ | |
2986 | QPathInfoRetry: | |
2987 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2988 | (void **) &pSMBr); | |
2989 | if (rc) | |
2990 | return rc; | |
2991 | ||
2992 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2993 | name_len = | |
b1a45695 | 2994 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 2995 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2996 | name_len++; /* trailing null */ |
2997 | name_len *= 2; | |
2998 | } else { /* BB improve the check for buffer overruns BB */ | |
2999 | name_len = strnlen(searchName, PATH_MAX); | |
3000 | name_len++; /* trailing null */ | |
3001 | strncpy(pSMB->FileName, searchName, name_len); | |
3002 | } | |
3003 | ||
3004 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */ ; | |
3005 | pSMB->TotalDataCount = 0; | |
3006 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3007 | pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ | |
3008 | pSMB->MaxSetupCount = 0; | |
3009 | pSMB->Reserved = 0; | |
3010 | pSMB->Flags = 0; | |
3011 | pSMB->Timeout = 0; | |
3012 | pSMB->Reserved2 = 0; | |
3013 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
3014 | struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); | |
3015 | pSMB->DataCount = 0; | |
3016 | pSMB->DataOffset = 0; | |
3017 | pSMB->SetupCount = 1; | |
3018 | pSMB->Reserved3 = 0; | |
3019 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
3020 | byte_count = params + 1 /* pad */ ; | |
3021 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3022 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
acf1a1b1 SF |
3023 | if(legacy) |
3024 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_STANDARD); | |
3025 | else | |
3026 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_ALL_INFO); | |
1da177e4 LT |
3027 | pSMB->Reserved4 = 0; |
3028 | pSMB->hdr.smb_buf_length += byte_count; | |
3029 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3030 | ||
3031 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3032 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3033 | if (rc) { | |
3034 | cFYI(1, ("Send error in QPathInfo = %d", rc)); | |
3035 | } else { /* decode response */ | |
3036 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3037 | ||
acf1a1b1 SF |
3038 | if (rc) /* BB add auto retry on EOPNOTSUPP? */ |
3039 | rc = -EIO; | |
3040 | else if (!legacy && (pSMBr->ByteCount < 40)) | |
1da177e4 | 3041 | rc = -EIO; /* bad smb */ |
acf1a1b1 SF |
3042 | else if(legacy && (pSMBr->ByteCount < 24)) |
3043 | rc = -EIO; /* 24 or 26 expected but we do not read last field */ | |
1da177e4 | 3044 | else if (pFindData){ |
acf1a1b1 | 3045 | int size; |
1da177e4 | 3046 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
acf1a1b1 SF |
3047 | if(legacy) /* we do not read the last field, EAsize, fortunately |
3048 | since it varies by subdialect and on Set vs. Get, is | |
3049 | two bytes or 4 bytes depending but we don't care here */ | |
3050 | size = sizeof(FILE_INFO_STANDARD); | |
3051 | else | |
3052 | size = sizeof(FILE_ALL_INFO); | |
1da177e4 LT |
3053 | memcpy((char *) pFindData, |
3054 | (char *) &pSMBr->hdr.Protocol + | |
acf1a1b1 | 3055 | data_offset, size); |
1da177e4 LT |
3056 | } else |
3057 | rc = -ENOMEM; | |
3058 | } | |
3059 | cifs_buf_release(pSMB); | |
3060 | if (rc == -EAGAIN) | |
3061 | goto QPathInfoRetry; | |
3062 | ||
3063 | return rc; | |
3064 | } | |
3065 | ||
3066 | int | |
3067 | CIFSSMBUnixQPathInfo(const int xid, struct cifsTconInfo *tcon, | |
3068 | const unsigned char *searchName, | |
3069 | FILE_UNIX_BASIC_INFO * pFindData, | |
737b758c | 3070 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
3071 | { |
3072 | /* SMB_QUERY_FILE_UNIX_BASIC */ | |
3073 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
3074 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
3075 | int rc = 0; | |
3076 | int bytes_returned = 0; | |
3077 | int name_len; | |
3078 | __u16 params, byte_count; | |
3079 | ||
3080 | cFYI(1, ("In QPathInfo (Unix) the path %s", searchName)); | |
3081 | UnixQPathInfoRetry: | |
3082 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3083 | (void **) &pSMBr); | |
3084 | if (rc) | |
3085 | return rc; | |
3086 | ||
3087 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3088 | name_len = | |
b1a45695 | 3089 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 3090 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
3091 | name_len++; /* trailing null */ |
3092 | name_len *= 2; | |
3093 | } else { /* BB improve the check for buffer overruns BB */ | |
3094 | name_len = strnlen(searchName, PATH_MAX); | |
3095 | name_len++; /* trailing null */ | |
3096 | strncpy(pSMB->FileName, searchName, name_len); | |
3097 | } | |
3098 | ||
3099 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */ ; | |
3100 | pSMB->TotalDataCount = 0; | |
3101 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3102 | /* BB find exact max SMB PDU from sess structure BB */ | |
3103 | pSMB->MaxDataCount = cpu_to_le16(4000); | |
3104 | pSMB->MaxSetupCount = 0; | |
3105 | pSMB->Reserved = 0; | |
3106 | pSMB->Flags = 0; | |
3107 | pSMB->Timeout = 0; | |
3108 | pSMB->Reserved2 = 0; | |
3109 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
3110 | struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); | |
3111 | pSMB->DataCount = 0; | |
3112 | pSMB->DataOffset = 0; | |
3113 | pSMB->SetupCount = 1; | |
3114 | pSMB->Reserved3 = 0; | |
3115 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
3116 | byte_count = params + 1 /* pad */ ; | |
3117 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3118 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3119 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_UNIX_BASIC); | |
3120 | pSMB->Reserved4 = 0; | |
3121 | pSMB->hdr.smb_buf_length += byte_count; | |
3122 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3123 | ||
3124 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3125 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3126 | if (rc) { | |
3127 | cFYI(1, ("Send error in QPathInfo = %d", rc)); | |
3128 | } else { /* decode response */ | |
3129 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3130 | ||
3131 | if (rc || (pSMBr->ByteCount < sizeof(FILE_UNIX_BASIC_INFO))) { | |
3132 | rc = -EIO; /* bad smb */ | |
3133 | } else { | |
3134 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
3135 | memcpy((char *) pFindData, | |
3136 | (char *) &pSMBr->hdr.Protocol + | |
3137 | data_offset, | |
3138 | sizeof (FILE_UNIX_BASIC_INFO)); | |
3139 | } | |
3140 | } | |
3141 | cifs_buf_release(pSMB); | |
3142 | if (rc == -EAGAIN) | |
3143 | goto UnixQPathInfoRetry; | |
3144 | ||
3145 | return rc; | |
3146 | } | |
3147 | ||
3148 | #if 0 /* function unused at present */ | |
3149 | int CIFSFindSingle(const int xid, struct cifsTconInfo *tcon, | |
3150 | const char *searchName, FILE_ALL_INFO * findData, | |
3151 | const struct nls_table *nls_codepage) | |
3152 | { | |
3153 | /* level 257 SMB_ */ | |
3154 | TRANSACTION2_FFIRST_REQ *pSMB = NULL; | |
3155 | TRANSACTION2_FFIRST_RSP *pSMBr = NULL; | |
3156 | int rc = 0; | |
3157 | int bytes_returned; | |
3158 | int name_len; | |
3159 | __u16 params, byte_count; | |
3160 | ||
3161 | cFYI(1, ("In FindUnique")); | |
3162 | findUniqueRetry: | |
3163 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3164 | (void **) &pSMBr); | |
3165 | if (rc) | |
3166 | return rc; | |
3167 | ||
3168 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3169 | name_len = | |
b1a45695 | 3170 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, PATH_MAX |
1da177e4 LT |
3171 | /* find define for this maxpathcomponent */ |
3172 | , nls_codepage); | |
3173 | name_len++; /* trailing null */ | |
3174 | name_len *= 2; | |
3175 | } else { /* BB improve the check for buffer overruns BB */ | |
3176 | name_len = strnlen(searchName, PATH_MAX); | |
3177 | name_len++; /* trailing null */ | |
3178 | strncpy(pSMB->FileName, searchName, name_len); | |
3179 | } | |
3180 | ||
3181 | params = 12 + name_len /* includes null */ ; | |
3182 | pSMB->TotalDataCount = 0; /* no EAs */ | |
3183 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3184 | pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ | |
3185 | pSMB->MaxSetupCount = 0; | |
3186 | pSMB->Reserved = 0; | |
3187 | pSMB->Flags = 0; | |
3188 | pSMB->Timeout = 0; | |
3189 | pSMB->Reserved2 = 0; | |
3190 | pSMB->ParameterOffset = cpu_to_le16( | |
3191 | offsetof(struct smb_com_transaction2_ffirst_req,InformationLevel) - 4); | |
3192 | pSMB->DataCount = 0; | |
3193 | pSMB->DataOffset = 0; | |
3194 | pSMB->SetupCount = 1; /* one byte, no need to le convert */ | |
3195 | pSMB->Reserved3 = 0; | |
3196 | pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_FIRST); | |
3197 | byte_count = params + 1 /* pad */ ; | |
3198 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3199 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3200 | pSMB->SearchAttributes = | |
3201 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | | |
3202 | ATTR_DIRECTORY); | |
3203 | pSMB->SearchCount = cpu_to_le16(16); /* BB increase */ | |
3204 | pSMB->SearchFlags = cpu_to_le16(1); | |
3205 | pSMB->InformationLevel = cpu_to_le16(SMB_FIND_FILE_DIRECTORY_INFO); | |
3206 | pSMB->SearchStorageType = 0; /* BB what should we set this to? BB */ | |
3207 | pSMB->hdr.smb_buf_length += byte_count; | |
3208 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3209 | ||
3210 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3211 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3212 | ||
3213 | if (rc) { | |
3214 | cFYI(1, ("Send error in FindFileDirInfo = %d", rc)); | |
3215 | } else { /* decode response */ | |
a4544347 | 3216 | cifs_stats_inc(&tcon->num_ffirst); |
1da177e4 LT |
3217 | /* BB fill in */ |
3218 | } | |
3219 | ||
3220 | cifs_buf_release(pSMB); | |
3221 | if (rc == -EAGAIN) | |
3222 | goto findUniqueRetry; | |
3223 | ||
3224 | return rc; | |
3225 | } | |
3226 | #endif /* end unused (temporarily) function */ | |
3227 | ||
3228 | /* xid, tcon, searchName and codepage are input parms, rest are returned */ | |
3229 | int | |
3230 | CIFSFindFirst(const int xid, struct cifsTconInfo *tcon, | |
3231 | const char *searchName, | |
3232 | const struct nls_table *nls_codepage, | |
3233 | __u16 * pnetfid, | |
ac67055e | 3234 | struct cifs_search_info * psrch_inf, int remap, const char dirsep) |
1da177e4 LT |
3235 | { |
3236 | /* level 257 SMB_ */ | |
3237 | TRANSACTION2_FFIRST_REQ *pSMB = NULL; | |
3238 | TRANSACTION2_FFIRST_RSP *pSMBr = NULL; | |
3239 | T2_FFIRST_RSP_PARMS * parms; | |
3240 | int rc = 0; | |
3241 | int bytes_returned = 0; | |
3242 | int name_len; | |
3243 | __u16 params, byte_count; | |
3244 | ||
737b758c | 3245 | cFYI(1, ("In FindFirst for %s",searchName)); |
1da177e4 LT |
3246 | |
3247 | findFirstRetry: | |
3248 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3249 | (void **) &pSMBr); | |
3250 | if (rc) | |
3251 | return rc; | |
3252 | ||
3253 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3254 | name_len = | |
b1a45695 | 3255 | cifsConvertToUCS((__le16 *) pSMB->FileName,searchName, |
737b758c SF |
3256 | PATH_MAX, nls_codepage, remap); |
3257 | /* We can not add the asterik earlier in case | |
3258 | it got remapped to 0xF03A as if it were part of the | |
3259 | directory name instead of a wildcard */ | |
1da177e4 | 3260 | name_len *= 2; |
ac67055e | 3261 | pSMB->FileName[name_len] = dirsep; |
737b758c SF |
3262 | pSMB->FileName[name_len+1] = 0; |
3263 | pSMB->FileName[name_len+2] = '*'; | |
3264 | pSMB->FileName[name_len+3] = 0; | |
3265 | name_len += 4; /* now the trailing null */ | |
1da177e4 LT |
3266 | pSMB->FileName[name_len] = 0; /* null terminate just in case */ |
3267 | pSMB->FileName[name_len+1] = 0; | |
737b758c | 3268 | name_len += 2; |
1da177e4 LT |
3269 | } else { /* BB add check for overrun of SMB buf BB */ |
3270 | name_len = strnlen(searchName, PATH_MAX); | |
1da177e4 LT |
3271 | /* BB fix here and in unicode clause above ie |
3272 | if(name_len > buffersize-header) | |
3273 | free buffer exit; BB */ | |
3274 | strncpy(pSMB->FileName, searchName, name_len); | |
ac67055e | 3275 | pSMB->FileName[name_len] = dirsep; |
68575476 SF |
3276 | pSMB->FileName[name_len+1] = '*'; |
3277 | pSMB->FileName[name_len+2] = 0; | |
3278 | name_len += 3; | |
1da177e4 LT |
3279 | } |
3280 | ||
3281 | params = 12 + name_len /* includes null */ ; | |
3282 | pSMB->TotalDataCount = 0; /* no EAs */ | |
3283 | pSMB->MaxParameterCount = cpu_to_le16(10); | |
3284 | pSMB->MaxDataCount = cpu_to_le16((tcon->ses->server->maxBuf - | |
3285 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
3286 | pSMB->MaxSetupCount = 0; | |
3287 | pSMB->Reserved = 0; | |
3288 | pSMB->Flags = 0; | |
3289 | pSMB->Timeout = 0; | |
3290 | pSMB->Reserved2 = 0; | |
3291 | byte_count = params + 1 /* pad */ ; | |
3292 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3293 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3294 | pSMB->ParameterOffset = cpu_to_le16( | |
88274815 SF |
3295 | offsetof(struct smb_com_transaction2_ffirst_req, SearchAttributes) |
3296 | - 4); | |
1da177e4 LT |
3297 | pSMB->DataCount = 0; |
3298 | pSMB->DataOffset = 0; | |
3299 | pSMB->SetupCount = 1; /* one byte, no need to make endian neutral */ | |
3300 | pSMB->Reserved3 = 0; | |
3301 | pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_FIRST); | |
3302 | pSMB->SearchAttributes = | |
3303 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | | |
3304 | ATTR_DIRECTORY); | |
3305 | pSMB->SearchCount= cpu_to_le16(CIFSMaxBufSize/sizeof(FILE_UNIX_INFO)); | |
3306 | pSMB->SearchFlags = cpu_to_le16(CIFS_SEARCH_CLOSE_AT_END | | |
3307 | CIFS_SEARCH_RETURN_RESUME); | |
3308 | pSMB->InformationLevel = cpu_to_le16(psrch_inf->info_level); | |
3309 | ||
3310 | /* BB what should we set StorageType to? Does it matter? BB */ | |
3311 | pSMB->SearchStorageType = 0; | |
3312 | pSMB->hdr.smb_buf_length += byte_count; | |
3313 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3314 | ||
3315 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3316 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 3317 | cifs_stats_inc(&tcon->num_ffirst); |
1da177e4 | 3318 | |
88274815 SF |
3319 | if (rc) {/* BB add logic to retry regular search if Unix search |
3320 | rejected unexpectedly by server */ | |
1da177e4 LT |
3321 | /* BB Add code to handle unsupported level rc */ |
3322 | cFYI(1, ("Error in FindFirst = %d", rc)); | |
1982c344 | 3323 | |
88274815 | 3324 | cifs_buf_release(pSMB); |
1da177e4 LT |
3325 | |
3326 | /* BB eventually could optimize out free and realloc of buf */ | |
3327 | /* for this case */ | |
3328 | if (rc == -EAGAIN) | |
3329 | goto findFirstRetry; | |
3330 | } else { /* decode response */ | |
3331 | /* BB remember to free buffer if error BB */ | |
3332 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3333 | if(rc == 0) { | |
3334 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) | |
3335 | psrch_inf->unicode = TRUE; | |
3336 | else | |
3337 | psrch_inf->unicode = FALSE; | |
3338 | ||
3339 | psrch_inf->ntwrk_buf_start = (char *)pSMBr; | |
d47d7c1a | 3340 | psrch_inf->smallBuf = 0; |
1da177e4 LT |
3341 | psrch_inf->srch_entries_start = |
3342 | (char *) &pSMBr->hdr.Protocol + | |
3343 | le16_to_cpu(pSMBr->t2.DataOffset); | |
1da177e4 LT |
3344 | parms = (T2_FFIRST_RSP_PARMS *)((char *) &pSMBr->hdr.Protocol + |
3345 | le16_to_cpu(pSMBr->t2.ParameterOffset)); | |
3346 | ||
3347 | if(parms->EndofSearch) | |
3348 | psrch_inf->endOfSearch = TRUE; | |
3349 | else | |
3350 | psrch_inf->endOfSearch = FALSE; | |
3351 | ||
3352 | psrch_inf->entries_in_buffer = le16_to_cpu(parms->SearchCount); | |
60808233 | 3353 | psrch_inf->index_of_last_entry = 2 /* skip . and .. */ + |
1da177e4 | 3354 | psrch_inf->entries_in_buffer; |
1da177e4 LT |
3355 | *pnetfid = parms->SearchHandle; |
3356 | } else { | |
3357 | cifs_buf_release(pSMB); | |
3358 | } | |
3359 | } | |
3360 | ||
3361 | return rc; | |
3362 | } | |
3363 | ||
3364 | int CIFSFindNext(const int xid, struct cifsTconInfo *tcon, | |
3365 | __u16 searchHandle, struct cifs_search_info * psrch_inf) | |
3366 | { | |
3367 | TRANSACTION2_FNEXT_REQ *pSMB = NULL; | |
3368 | TRANSACTION2_FNEXT_RSP *pSMBr = NULL; | |
3369 | T2_FNEXT_RSP_PARMS * parms; | |
3370 | char *response_data; | |
3371 | int rc = 0; | |
3372 | int bytes_returned, name_len; | |
3373 | __u16 params, byte_count; | |
3374 | ||
3375 | cFYI(1, ("In FindNext")); | |
3376 | ||
3377 | if(psrch_inf->endOfSearch == TRUE) | |
3378 | return -ENOENT; | |
3379 | ||
3380 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3381 | (void **) &pSMBr); | |
3382 | if (rc) | |
3383 | return rc; | |
3384 | ||
3385 | params = 14; /* includes 2 bytes of null string, converted to LE below */ | |
3386 | byte_count = 0; | |
3387 | pSMB->TotalDataCount = 0; /* no EAs */ | |
3388 | pSMB->MaxParameterCount = cpu_to_le16(8); | |
3389 | pSMB->MaxDataCount = | |
3390 | cpu_to_le16((tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
3391 | pSMB->MaxSetupCount = 0; | |
3392 | pSMB->Reserved = 0; | |
3393 | pSMB->Flags = 0; | |
3394 | pSMB->Timeout = 0; | |
3395 | pSMB->Reserved2 = 0; | |
3396 | pSMB->ParameterOffset = cpu_to_le16( | |
3397 | offsetof(struct smb_com_transaction2_fnext_req,SearchHandle) - 4); | |
3398 | pSMB->DataCount = 0; | |
3399 | pSMB->DataOffset = 0; | |
3400 | pSMB->SetupCount = 1; | |
3401 | pSMB->Reserved3 = 0; | |
3402 | pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_NEXT); | |
3403 | pSMB->SearchHandle = searchHandle; /* always kept as le */ | |
3404 | pSMB->SearchCount = | |
3405 | cpu_to_le16(CIFSMaxBufSize / sizeof (FILE_UNIX_INFO)); | |
3406 | /* test for Unix extensions */ | |
3407 | /* if (tcon->ses->capabilities & CAP_UNIX) { | |
3408 | pSMB->InformationLevel = cpu_to_le16(SMB_FIND_FILE_UNIX); | |
3409 | psrch_inf->info_level = SMB_FIND_FILE_UNIX; | |
3410 | } else { | |
3411 | pSMB->InformationLevel = | |
3412 | cpu_to_le16(SMB_FIND_FILE_DIRECTORY_INFO); | |
3413 | psrch_inf->info_level = SMB_FIND_FILE_DIRECTORY_INFO; | |
3414 | } */ | |
3415 | pSMB->InformationLevel = cpu_to_le16(psrch_inf->info_level); | |
3416 | pSMB->ResumeKey = psrch_inf->resume_key; | |
3417 | pSMB->SearchFlags = | |
3418 | cpu_to_le16(CIFS_SEARCH_CLOSE_AT_END | CIFS_SEARCH_RETURN_RESUME); | |
3419 | ||
3420 | name_len = psrch_inf->resume_name_len; | |
3421 | params += name_len; | |
3422 | if(name_len < PATH_MAX) { | |
3423 | memcpy(pSMB->ResumeFileName, psrch_inf->presume_name, name_len); | |
3424 | byte_count += name_len; | |
ef6724e3 SF |
3425 | /* 14 byte parm len above enough for 2 byte null terminator */ |
3426 | pSMB->ResumeFileName[name_len] = 0; | |
3427 | pSMB->ResumeFileName[name_len+1] = 0; | |
1da177e4 LT |
3428 | } else { |
3429 | rc = -EINVAL; | |
3430 | goto FNext2_err_exit; | |
3431 | } | |
3432 | byte_count = params + 1 /* pad */ ; | |
3433 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3434 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3435 | pSMB->hdr.smb_buf_length += byte_count; | |
3436 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3437 | ||
3438 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3439 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 3440 | cifs_stats_inc(&tcon->num_fnext); |
1da177e4 LT |
3441 | if (rc) { |
3442 | if (rc == -EBADF) { | |
3443 | psrch_inf->endOfSearch = TRUE; | |
3444 | rc = 0; /* search probably was closed at end of search above */ | |
3445 | } else | |
3446 | cFYI(1, ("FindNext returned = %d", rc)); | |
3447 | } else { /* decode response */ | |
3448 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3449 | ||
3450 | if(rc == 0) { | |
3451 | /* BB fixme add lock for file (srch_info) struct here */ | |
3452 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) | |
3453 | psrch_inf->unicode = TRUE; | |
3454 | else | |
3455 | psrch_inf->unicode = FALSE; | |
3456 | response_data = (char *) &pSMBr->hdr.Protocol + | |
3457 | le16_to_cpu(pSMBr->t2.ParameterOffset); | |
3458 | parms = (T2_FNEXT_RSP_PARMS *)response_data; | |
3459 | response_data = (char *)&pSMBr->hdr.Protocol + | |
3460 | le16_to_cpu(pSMBr->t2.DataOffset); | |
d47d7c1a SF |
3461 | if(psrch_inf->smallBuf) |
3462 | cifs_small_buf_release( | |
3463 | psrch_inf->ntwrk_buf_start); | |
3464 | else | |
3465 | cifs_buf_release(psrch_inf->ntwrk_buf_start); | |
1da177e4 LT |
3466 | psrch_inf->srch_entries_start = response_data; |
3467 | psrch_inf->ntwrk_buf_start = (char *)pSMB; | |
d47d7c1a | 3468 | psrch_inf->smallBuf = 0; |
1da177e4 LT |
3469 | if(parms->EndofSearch) |
3470 | psrch_inf->endOfSearch = TRUE; | |
3471 | else | |
3472 | psrch_inf->endOfSearch = FALSE; | |
3473 | ||
3474 | psrch_inf->entries_in_buffer = le16_to_cpu(parms->SearchCount); | |
3475 | psrch_inf->index_of_last_entry += | |
3476 | psrch_inf->entries_in_buffer; | |
3477 | /* cFYI(1,("fnxt2 entries in buf %d index_of_last %d",psrch_inf->entries_in_buffer,psrch_inf->index_of_last_entry)); */ | |
3478 | ||
3479 | /* BB fixme add unlock here */ | |
3480 | } | |
3481 | ||
3482 | } | |
3483 | ||
3484 | /* BB On error, should we leave previous search buf (and count and | |
3485 | last entry fields) intact or free the previous one? */ | |
3486 | ||
3487 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
3488 | since file handle passed in no longer valid */ | |
3489 | FNext2_err_exit: | |
3490 | if (rc != 0) | |
3491 | cifs_buf_release(pSMB); | |
3492 | ||
3493 | return rc; | |
3494 | } | |
3495 | ||
3496 | int | |
3497 | CIFSFindClose(const int xid, struct cifsTconInfo *tcon, const __u16 searchHandle) | |
3498 | { | |
3499 | int rc = 0; | |
3500 | FINDCLOSE_REQ *pSMB = NULL; | |
3501 | CLOSE_RSP *pSMBr = NULL; /* BB removeme BB */ | |
3502 | int bytes_returned; | |
3503 | ||
3504 | cFYI(1, ("In CIFSSMBFindClose")); | |
3505 | rc = small_smb_init(SMB_COM_FIND_CLOSE2, 1, tcon, (void **)&pSMB); | |
3506 | ||
3507 | /* no sense returning error if session restarted | |
3508 | as file handle has been closed */ | |
3509 | if(rc == -EAGAIN) | |
3510 | return 0; | |
3511 | if (rc) | |
3512 | return rc; | |
3513 | ||
3514 | pSMBr = (CLOSE_RSP *)pSMB; /* BB removeme BB */ | |
3515 | pSMB->FileID = searchHandle; | |
3516 | pSMB->ByteCount = 0; | |
3517 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3518 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3519 | if (rc) { | |
3520 | cERROR(1, ("Send error in FindClose = %d", rc)); | |
3521 | } | |
a4544347 | 3522 | cifs_stats_inc(&tcon->num_fclose); |
1da177e4 LT |
3523 | cifs_small_buf_release(pSMB); |
3524 | ||
3525 | /* Since session is dead, search handle closed on server already */ | |
3526 | if (rc == -EAGAIN) | |
3527 | rc = 0; | |
3528 | ||
3529 | return rc; | |
3530 | } | |
3531 | ||
1da177e4 LT |
3532 | int |
3533 | CIFSGetSrvInodeNumber(const int xid, struct cifsTconInfo *tcon, | |
3534 | const unsigned char *searchName, | |
3535 | __u64 * inode_number, | |
737b758c | 3536 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
3537 | { |
3538 | int rc = 0; | |
3539 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
3540 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
3541 | int name_len, bytes_returned; | |
3542 | __u16 params, byte_count; | |
3543 | ||
3544 | cFYI(1,("In GetSrvInodeNum for %s",searchName)); | |
3545 | if(tcon == NULL) | |
3546 | return -ENODEV; | |
3547 | ||
3548 | GetInodeNumberRetry: | |
3549 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3550 | (void **) &pSMBr); | |
3551 | if (rc) | |
3552 | return rc; | |
3553 | ||
3554 | ||
3555 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3556 | name_len = | |
b1a45695 | 3557 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 3558 | PATH_MAX,nls_codepage, remap); |
1da177e4 LT |
3559 | name_len++; /* trailing null */ |
3560 | name_len *= 2; | |
3561 | } else { /* BB improve the check for buffer overruns BB */ | |
3562 | name_len = strnlen(searchName, PATH_MAX); | |
3563 | name_len++; /* trailing null */ | |
3564 | strncpy(pSMB->FileName, searchName, name_len); | |
3565 | } | |
3566 | ||
3567 | params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ; | |
3568 | pSMB->TotalDataCount = 0; | |
3569 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3570 | /* BB find exact max data count below from sess structure BB */ | |
3571 | pSMB->MaxDataCount = cpu_to_le16(4000); | |
3572 | pSMB->MaxSetupCount = 0; | |
3573 | pSMB->Reserved = 0; | |
3574 | pSMB->Flags = 0; | |
3575 | pSMB->Timeout = 0; | |
3576 | pSMB->Reserved2 = 0; | |
3577 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
3578 | struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); | |
3579 | pSMB->DataCount = 0; | |
3580 | pSMB->DataOffset = 0; | |
3581 | pSMB->SetupCount = 1; | |
3582 | pSMB->Reserved3 = 0; | |
3583 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
3584 | byte_count = params + 1 /* pad */ ; | |
3585 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3586 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3587 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_INTERNAL_INFO); | |
3588 | pSMB->Reserved4 = 0; | |
3589 | pSMB->hdr.smb_buf_length += byte_count; | |
3590 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3591 | ||
3592 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3593 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3594 | if (rc) { | |
3595 | cFYI(1, ("error %d in QueryInternalInfo", rc)); | |
3596 | } else { | |
3597 | /* decode response */ | |
3598 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3599 | if (rc || (pSMBr->ByteCount < 2)) | |
3600 | /* BB also check enough total bytes returned */ | |
3601 | /* If rc should we check for EOPNOSUPP and | |
3602 | disable the srvino flag? or in caller? */ | |
3603 | rc = -EIO; /* bad smb */ | |
3604 | else { | |
3605 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
3606 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); | |
3607 | struct file_internal_info * pfinfo; | |
3608 | /* BB Do we need a cast or hash here ? */ | |
3609 | if(count < 8) { | |
3610 | cFYI(1, ("Illegal size ret in QryIntrnlInf")); | |
3611 | rc = -EIO; | |
3612 | goto GetInodeNumOut; | |
3613 | } | |
3614 | pfinfo = (struct file_internal_info *) | |
3615 | (data_offset + (char *) &pSMBr->hdr.Protocol); | |
3616 | *inode_number = pfinfo->UniqueId; | |
3617 | } | |
3618 | } | |
3619 | GetInodeNumOut: | |
3620 | cifs_buf_release(pSMB); | |
3621 | if (rc == -EAGAIN) | |
3622 | goto GetInodeNumberRetry; | |
3623 | return rc; | |
3624 | } | |
1da177e4 LT |
3625 | |
3626 | int | |
3627 | CIFSGetDFSRefer(const int xid, struct cifsSesInfo *ses, | |
3628 | const unsigned char *searchName, | |
3629 | unsigned char **targetUNCs, | |
3630 | unsigned int *number_of_UNC_in_array, | |
737b758c | 3631 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
3632 | { |
3633 | /* TRANS2_GET_DFS_REFERRAL */ | |
3634 | TRANSACTION2_GET_DFS_REFER_REQ *pSMB = NULL; | |
3635 | TRANSACTION2_GET_DFS_REFER_RSP *pSMBr = NULL; | |
3636 | struct dfs_referral_level_3 * referrals = NULL; | |
3637 | int rc = 0; | |
3638 | int bytes_returned; | |
3639 | int name_len; | |
3640 | unsigned int i; | |
3641 | char * temp; | |
3642 | __u16 params, byte_count; | |
3643 | *number_of_UNC_in_array = 0; | |
3644 | *targetUNCs = NULL; | |
3645 | ||
3646 | cFYI(1, ("In GetDFSRefer the path %s", searchName)); | |
3647 | if (ses == NULL) | |
3648 | return -ENODEV; | |
3649 | getDFSRetry: | |
3650 | rc = smb_init(SMB_COM_TRANSACTION2, 15, NULL, (void **) &pSMB, | |
3651 | (void **) &pSMBr); | |
3652 | if (rc) | |
3653 | return rc; | |
1982c344 SF |
3654 | |
3655 | /* server pointer checked in called function, | |
3656 | but should never be null here anyway */ | |
3657 | pSMB->hdr.Mid = GetNextMid(ses->server); | |
1da177e4 LT |
3658 | pSMB->hdr.Tid = ses->ipc_tid; |
3659 | pSMB->hdr.Uid = ses->Suid; | |
3660 | if (ses->capabilities & CAP_STATUS32) { | |
3661 | pSMB->hdr.Flags2 |= SMBFLG2_ERR_STATUS; | |
3662 | } | |
3663 | if (ses->capabilities & CAP_DFS) { | |
3664 | pSMB->hdr.Flags2 |= SMBFLG2_DFS; | |
3665 | } | |
3666 | ||
3667 | if (ses->capabilities & CAP_UNICODE) { | |
3668 | pSMB->hdr.Flags2 |= SMBFLG2_UNICODE; | |
3669 | name_len = | |
b1a45695 | 3670 | cifsConvertToUCS((__le16 *) pSMB->RequestFileName, |
737b758c | 3671 | searchName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
3672 | name_len++; /* trailing null */ |
3673 | name_len *= 2; | |
3674 | } else { /* BB improve the check for buffer overruns BB */ | |
3675 | name_len = strnlen(searchName, PATH_MAX); | |
3676 | name_len++; /* trailing null */ | |
3677 | strncpy(pSMB->RequestFileName, searchName, name_len); | |
3678 | } | |
3679 | ||
1a4e15a0 SF |
3680 | if(ses->server) { |
3681 | if(ses->server->secMode & | |
3682 | (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) | |
3683 | pSMB->hdr.Flags2 |= SMBFLG2_SECURITY_SIGNATURE; | |
3684 | } | |
3685 | ||
3686 | pSMB->hdr.Uid = ses->Suid; | |
3687 | ||
1da177e4 LT |
3688 | params = 2 /* level */ + name_len /*includes null */ ; |
3689 | pSMB->TotalDataCount = 0; | |
3690 | pSMB->DataCount = 0; | |
3691 | pSMB->DataOffset = 0; | |
3692 | pSMB->MaxParameterCount = 0; | |
3693 | pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ | |
3694 | pSMB->MaxSetupCount = 0; | |
3695 | pSMB->Reserved = 0; | |
3696 | pSMB->Flags = 0; | |
3697 | pSMB->Timeout = 0; | |
3698 | pSMB->Reserved2 = 0; | |
3699 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
3700 | struct smb_com_transaction2_get_dfs_refer_req, MaxReferralLevel) - 4); | |
3701 | pSMB->SetupCount = 1; | |
3702 | pSMB->Reserved3 = 0; | |
3703 | pSMB->SubCommand = cpu_to_le16(TRANS2_GET_DFS_REFERRAL); | |
3704 | byte_count = params + 3 /* pad */ ; | |
3705 | pSMB->ParameterCount = cpu_to_le16(params); | |
3706 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
3707 | pSMB->MaxReferralLevel = cpu_to_le16(3); | |
3708 | pSMB->hdr.smb_buf_length += byte_count; | |
3709 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3710 | ||
3711 | rc = SendReceive(xid, ses, (struct smb_hdr *) pSMB, | |
3712 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3713 | if (rc) { | |
3714 | cFYI(1, ("Send error in GetDFSRefer = %d", rc)); | |
3715 | } else { /* decode response */ | |
3716 | /* BB Add logic to parse referrals here */ | |
3717 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3718 | ||
3719 | if (rc || (pSMBr->ByteCount < 17)) /* BB also check enough total bytes returned */ | |
3720 | rc = -EIO; /* bad smb */ | |
3721 | else { | |
3722 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
3723 | __u16 data_count = le16_to_cpu(pSMBr->t2.DataCount); | |
3724 | ||
3725 | cFYI(1, | |
3726 | ("Decoding GetDFSRefer response. BCC: %d Offset %d", | |
3727 | pSMBr->ByteCount, data_offset)); | |
3728 | referrals = | |
3729 | (struct dfs_referral_level_3 *) | |
3730 | (8 /* sizeof start of data block */ + | |
3731 | data_offset + | |
3732 | (char *) &pSMBr->hdr.Protocol); | |
3733 | 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", | |
3734 | le16_to_cpu(pSMBr->NumberOfReferrals),le16_to_cpu(pSMBr->DFSFlags), le16_to_cpu(referrals->ReferralSize),le16_to_cpu(referrals->ServerType),le16_to_cpu(referrals->ReferralFlags),le16_to_cpu(referrals->TimeToLive))); | |
3735 | /* BB This field is actually two bytes in from start of | |
3736 | data block so we could do safety check that DataBlock | |
3737 | begins at address of pSMBr->NumberOfReferrals */ | |
3738 | *number_of_UNC_in_array = le16_to_cpu(pSMBr->NumberOfReferrals); | |
3739 | ||
3740 | /* BB Fix below so can return more than one referral */ | |
3741 | if(*number_of_UNC_in_array > 1) | |
3742 | *number_of_UNC_in_array = 1; | |
3743 | ||
3744 | /* get the length of the strings describing refs */ | |
3745 | name_len = 0; | |
3746 | for(i=0;i<*number_of_UNC_in_array;i++) { | |
3747 | /* make sure that DfsPathOffset not past end */ | |
3748 | __u16 offset = le16_to_cpu(referrals->DfsPathOffset); | |
3749 | if (offset > data_count) { | |
3750 | /* if invalid referral, stop here and do | |
3751 | not try to copy any more */ | |
3752 | *number_of_UNC_in_array = i; | |
3753 | break; | |
3754 | } | |
3755 | temp = ((char *)referrals) + offset; | |
3756 | ||
3757 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3758 | name_len += UniStrnlen((wchar_t *)temp,data_count); | |
3759 | } else { | |
3760 | name_len += strnlen(temp,data_count); | |
3761 | } | |
3762 | referrals++; | |
3763 | /* BB add check that referral pointer does not fall off end PDU */ | |
3764 | ||
3765 | } | |
3766 | /* BB add check for name_len bigger than bcc */ | |
3767 | *targetUNCs = | |
3768 | kmalloc(name_len+1+ (*number_of_UNC_in_array),GFP_KERNEL); | |
3769 | if(*targetUNCs == NULL) { | |
3770 | rc = -ENOMEM; | |
3771 | goto GetDFSRefExit; | |
3772 | } | |
3773 | /* copy the ref strings */ | |
3774 | referrals = | |
3775 | (struct dfs_referral_level_3 *) | |
3776 | (8 /* sizeof data hdr */ + | |
3777 | data_offset + | |
3778 | (char *) &pSMBr->hdr.Protocol); | |
3779 | ||
3780 | for(i=0;i<*number_of_UNC_in_array;i++) { | |
3781 | temp = ((char *)referrals) + le16_to_cpu(referrals->DfsPathOffset); | |
3782 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3783 | cifs_strfromUCS_le(*targetUNCs, | |
e89dc920 | 3784 | (__le16 *) temp, name_len, nls_codepage); |
1da177e4 LT |
3785 | } else { |
3786 | strncpy(*targetUNCs,temp,name_len); | |
3787 | } | |
3788 | /* BB update target_uncs pointers */ | |
3789 | referrals++; | |
3790 | } | |
3791 | temp = *targetUNCs; | |
3792 | temp[name_len] = 0; | |
3793 | } | |
3794 | ||
3795 | } | |
3796 | GetDFSRefExit: | |
3797 | if (pSMB) | |
3798 | cifs_buf_release(pSMB); | |
3799 | ||
3800 | if (rc == -EAGAIN) | |
3801 | goto getDFSRetry; | |
3802 | ||
3803 | return rc; | |
3804 | } | |
3805 | ||
20962438 SF |
3806 | /* Query File System Info such as free space to old servers such as Win 9x */ |
3807 | int | |
3808 | SMBOldQFSInfo(const int xid, struct cifsTconInfo *tcon, struct kstatfs *FSData) | |
3809 | { | |
3810 | /* level 0x01 SMB_QUERY_FILE_SYSTEM_INFO */ | |
3811 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
3812 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
3813 | FILE_SYSTEM_ALLOC_INFO *response_data; | |
3814 | int rc = 0; | |
3815 | int bytes_returned = 0; | |
3816 | __u16 params, byte_count; | |
3817 | ||
3818 | cFYI(1, ("OldQFSInfo")); | |
3819 | oldQFSInfoRetry: | |
3820 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3821 | (void **) &pSMBr); | |
3822 | if (rc) | |
3823 | return rc; | |
3824 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3825 | (void **) &pSMBr); | |
3826 | if (rc) | |
3827 | return rc; | |
3828 | ||
3829 | params = 2; /* level */ | |
3830 | pSMB->TotalDataCount = 0; | |
3831 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3832 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
3833 | pSMB->MaxSetupCount = 0; | |
3834 | pSMB->Reserved = 0; | |
3835 | pSMB->Flags = 0; | |
3836 | pSMB->Timeout = 0; | |
3837 | pSMB->Reserved2 = 0; | |
3838 | byte_count = params + 1 /* pad */ ; | |
3839 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3840 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3841 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
3842 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
3843 | pSMB->DataCount = 0; | |
3844 | pSMB->DataOffset = 0; | |
3845 | pSMB->SetupCount = 1; | |
3846 | pSMB->Reserved3 = 0; | |
3847 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
3848 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_ALLOCATION); | |
3849 | pSMB->hdr.smb_buf_length += byte_count; | |
3850 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3851 | ||
3852 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3853 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3854 | if (rc) { | |
3855 | cFYI(1, ("Send error in QFSInfo = %d", rc)); | |
3856 | } else { /* decode response */ | |
3857 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3858 | ||
3859 | if (rc || (pSMBr->ByteCount < 18)) | |
3860 | rc = -EIO; /* bad smb */ | |
3861 | else { | |
3862 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
3863 | cFYI(1,("qfsinf resp BCC: %d Offset %d", | |
3864 | pSMBr->ByteCount, data_offset)); | |
3865 | ||
3866 | response_data = | |
3867 | (FILE_SYSTEM_ALLOC_INFO *) | |
3868 | (((char *) &pSMBr->hdr.Protocol) + data_offset); | |
3869 | FSData->f_bsize = | |
3870 | le16_to_cpu(response_data->BytesPerSector) * | |
3871 | le32_to_cpu(response_data-> | |
3872 | SectorsPerAllocationUnit); | |
3873 | FSData->f_blocks = | |
3874 | le32_to_cpu(response_data->TotalAllocationUnits); | |
3875 | FSData->f_bfree = FSData->f_bavail = | |
3876 | le32_to_cpu(response_data->FreeAllocationUnits); | |
3877 | cFYI(1, | |
3878 | ("Blocks: %lld Free: %lld Block size %ld", | |
3879 | (unsigned long long)FSData->f_blocks, | |
3880 | (unsigned long long)FSData->f_bfree, | |
3881 | FSData->f_bsize)); | |
3882 | } | |
3883 | } | |
3884 | cifs_buf_release(pSMB); | |
3885 | ||
3886 | if (rc == -EAGAIN) | |
3887 | goto oldQFSInfoRetry; | |
3888 | ||
3889 | return rc; | |
3890 | } | |
3891 | ||
1da177e4 | 3892 | int |
737b758c | 3893 | CIFSSMBQFSInfo(const int xid, struct cifsTconInfo *tcon, struct kstatfs *FSData) |
1da177e4 LT |
3894 | { |
3895 | /* level 0x103 SMB_QUERY_FILE_SYSTEM_INFO */ | |
3896 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
3897 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
3898 | FILE_SYSTEM_INFO *response_data; | |
3899 | int rc = 0; | |
3900 | int bytes_returned = 0; | |
3901 | __u16 params, byte_count; | |
3902 | ||
3903 | cFYI(1, ("In QFSInfo")); | |
3904 | QFSInfoRetry: | |
3905 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3906 | (void **) &pSMBr); | |
3907 | if (rc) | |
3908 | return rc; | |
3909 | ||
3910 | params = 2; /* level */ | |
3911 | pSMB->TotalDataCount = 0; | |
3912 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
20962438 | 3913 | pSMB->MaxDataCount = cpu_to_le16(1000); |
1da177e4 LT |
3914 | pSMB->MaxSetupCount = 0; |
3915 | pSMB->Reserved = 0; | |
3916 | pSMB->Flags = 0; | |
3917 | pSMB->Timeout = 0; | |
3918 | pSMB->Reserved2 = 0; | |
3919 | byte_count = params + 1 /* pad */ ; | |
3920 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3921 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3922 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
3923 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
3924 | pSMB->DataCount = 0; | |
3925 | pSMB->DataOffset = 0; | |
3926 | pSMB->SetupCount = 1; | |
3927 | pSMB->Reserved3 = 0; | |
3928 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
3929 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_SIZE_INFO); | |
3930 | pSMB->hdr.smb_buf_length += byte_count; | |
3931 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3932 | ||
3933 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3934 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3935 | if (rc) { | |
20962438 | 3936 | cFYI(1, ("Send error in QFSInfo = %d", rc)); |
1da177e4 LT |
3937 | } else { /* decode response */ |
3938 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3939 | ||
20962438 | 3940 | if (rc || (pSMBr->ByteCount < 24)) |
1da177e4 LT |
3941 | rc = -EIO; /* bad smb */ |
3942 | else { | |
3943 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
1da177e4 LT |
3944 | |
3945 | response_data = | |
3946 | (FILE_SYSTEM_INFO | |
3947 | *) (((char *) &pSMBr->hdr.Protocol) + | |
3948 | data_offset); | |
3949 | FSData->f_bsize = | |
3950 | le32_to_cpu(response_data->BytesPerSector) * | |
3951 | le32_to_cpu(response_data-> | |
3952 | SectorsPerAllocationUnit); | |
3953 | FSData->f_blocks = | |
3954 | le64_to_cpu(response_data->TotalAllocationUnits); | |
3955 | FSData->f_bfree = FSData->f_bavail = | |
3956 | le64_to_cpu(response_data->FreeAllocationUnits); | |
3957 | cFYI(1, | |
3958 | ("Blocks: %lld Free: %lld Block size %ld", | |
3959 | (unsigned long long)FSData->f_blocks, | |
3960 | (unsigned long long)FSData->f_bfree, | |
3961 | FSData->f_bsize)); | |
3962 | } | |
3963 | } | |
3964 | cifs_buf_release(pSMB); | |
3965 | ||
3966 | if (rc == -EAGAIN) | |
3967 | goto QFSInfoRetry; | |
3968 | ||
3969 | return rc; | |
3970 | } | |
3971 | ||
3972 | int | |
737b758c | 3973 | CIFSSMBQFSAttributeInfo(const int xid, struct cifsTconInfo *tcon) |
1da177e4 LT |
3974 | { |
3975 | /* level 0x105 SMB_QUERY_FILE_SYSTEM_INFO */ | |
3976 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
3977 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
3978 | FILE_SYSTEM_ATTRIBUTE_INFO *response_data; | |
3979 | int rc = 0; | |
3980 | int bytes_returned = 0; | |
3981 | __u16 params, byte_count; | |
3982 | ||
3983 | cFYI(1, ("In QFSAttributeInfo")); | |
3984 | QFSAttributeRetry: | |
3985 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3986 | (void **) &pSMBr); | |
3987 | if (rc) | |
3988 | return rc; | |
3989 | ||
3990 | params = 2; /* level */ | |
3991 | pSMB->TotalDataCount = 0; | |
3992 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3993 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find exact max SMB PDU from sess structure BB */ | |
3994 | pSMB->MaxSetupCount = 0; | |
3995 | pSMB->Reserved = 0; | |
3996 | pSMB->Flags = 0; | |
3997 | pSMB->Timeout = 0; | |
3998 | pSMB->Reserved2 = 0; | |
3999 | byte_count = params + 1 /* pad */ ; | |
4000 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
4001 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
4002 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
4003 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
4004 | pSMB->DataCount = 0; | |
4005 | pSMB->DataOffset = 0; | |
4006 | pSMB->SetupCount = 1; | |
4007 | pSMB->Reserved3 = 0; | |
4008 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4009 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_ATTRIBUTE_INFO); | |
4010 | pSMB->hdr.smb_buf_length += byte_count; | |
4011 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4012 | ||
4013 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4014 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4015 | if (rc) { | |
4016 | cERROR(1, ("Send error in QFSAttributeInfo = %d", rc)); | |
4017 | } else { /* decode response */ | |
4018 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4019 | ||
4020 | if (rc || (pSMBr->ByteCount < 13)) { /* BB also check enough bytes returned */ | |
4021 | rc = -EIO; /* bad smb */ | |
4022 | } else { | |
4023 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
4024 | response_data = | |
4025 | (FILE_SYSTEM_ATTRIBUTE_INFO | |
4026 | *) (((char *) &pSMBr->hdr.Protocol) + | |
4027 | data_offset); | |
4028 | memcpy(&tcon->fsAttrInfo, response_data, | |
4029 | sizeof (FILE_SYSTEM_ATTRIBUTE_INFO)); | |
4030 | } | |
4031 | } | |
4032 | cifs_buf_release(pSMB); | |
4033 | ||
4034 | if (rc == -EAGAIN) | |
4035 | goto QFSAttributeRetry; | |
4036 | ||
4037 | return rc; | |
4038 | } | |
4039 | ||
4040 | int | |
737b758c | 4041 | CIFSSMBQFSDeviceInfo(const int xid, struct cifsTconInfo *tcon) |
1da177e4 LT |
4042 | { |
4043 | /* level 0x104 SMB_QUERY_FILE_SYSTEM_INFO */ | |
4044 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4045 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4046 | FILE_SYSTEM_DEVICE_INFO *response_data; | |
4047 | int rc = 0; | |
4048 | int bytes_returned = 0; | |
4049 | __u16 params, byte_count; | |
4050 | ||
4051 | cFYI(1, ("In QFSDeviceInfo")); | |
4052 | QFSDeviceRetry: | |
4053 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4054 | (void **) &pSMBr); | |
4055 | if (rc) | |
4056 | return rc; | |
4057 | ||
4058 | params = 2; /* level */ | |
4059 | pSMB->TotalDataCount = 0; | |
4060 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4061 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find exact max SMB PDU from sess structure BB */ | |
4062 | pSMB->MaxSetupCount = 0; | |
4063 | pSMB->Reserved = 0; | |
4064 | pSMB->Flags = 0; | |
4065 | pSMB->Timeout = 0; | |
4066 | pSMB->Reserved2 = 0; | |
4067 | byte_count = params + 1 /* pad */ ; | |
4068 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
4069 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
4070 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
4071 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
4072 | ||
4073 | pSMB->DataCount = 0; | |
4074 | pSMB->DataOffset = 0; | |
4075 | pSMB->SetupCount = 1; | |
4076 | pSMB->Reserved3 = 0; | |
4077 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4078 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_DEVICE_INFO); | |
4079 | pSMB->hdr.smb_buf_length += byte_count; | |
4080 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4081 | ||
4082 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4083 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4084 | if (rc) { | |
4085 | cFYI(1, ("Send error in QFSDeviceInfo = %d", rc)); | |
4086 | } else { /* decode response */ | |
4087 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4088 | ||
4089 | if (rc || (pSMBr->ByteCount < sizeof (FILE_SYSTEM_DEVICE_INFO))) | |
4090 | rc = -EIO; /* bad smb */ | |
4091 | else { | |
4092 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
4093 | response_data = | |
737b758c SF |
4094 | (FILE_SYSTEM_DEVICE_INFO *) |
4095 | (((char *) &pSMBr->hdr.Protocol) + | |
1da177e4 LT |
4096 | data_offset); |
4097 | memcpy(&tcon->fsDevInfo, response_data, | |
4098 | sizeof (FILE_SYSTEM_DEVICE_INFO)); | |
4099 | } | |
4100 | } | |
4101 | cifs_buf_release(pSMB); | |
4102 | ||
4103 | if (rc == -EAGAIN) | |
4104 | goto QFSDeviceRetry; | |
4105 | ||
4106 | return rc; | |
4107 | } | |
4108 | ||
4109 | int | |
737b758c | 4110 | CIFSSMBQFSUnixInfo(const int xid, struct cifsTconInfo *tcon) |
1da177e4 LT |
4111 | { |
4112 | /* level 0x200 SMB_QUERY_CIFS_UNIX_INFO */ | |
4113 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4114 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4115 | FILE_SYSTEM_UNIX_INFO *response_data; | |
4116 | int rc = 0; | |
4117 | int bytes_returned = 0; | |
4118 | __u16 params, byte_count; | |
4119 | ||
4120 | cFYI(1, ("In QFSUnixInfo")); | |
4121 | QFSUnixRetry: | |
4122 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4123 | (void **) &pSMBr); | |
4124 | if (rc) | |
4125 | return rc; | |
4126 | ||
4127 | params = 2; /* level */ | |
4128 | pSMB->TotalDataCount = 0; | |
4129 | pSMB->DataCount = 0; | |
4130 | pSMB->DataOffset = 0; | |
4131 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4132 | pSMB->MaxDataCount = cpu_to_le16(100); /* BB find exact max SMB PDU from sess structure BB */ | |
4133 | pSMB->MaxSetupCount = 0; | |
4134 | pSMB->Reserved = 0; | |
4135 | pSMB->Flags = 0; | |
4136 | pSMB->Timeout = 0; | |
4137 | pSMB->Reserved2 = 0; | |
4138 | byte_count = params + 1 /* pad */ ; | |
4139 | pSMB->ParameterCount = cpu_to_le16(params); | |
4140 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4141 | pSMB->ParameterOffset = cpu_to_le16(offsetof(struct | |
4142 | smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
4143 | pSMB->SetupCount = 1; | |
4144 | pSMB->Reserved3 = 0; | |
4145 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4146 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_CIFS_UNIX_INFO); | |
4147 | pSMB->hdr.smb_buf_length += byte_count; | |
4148 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4149 | ||
4150 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4151 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4152 | if (rc) { | |
4153 | cERROR(1, ("Send error in QFSUnixInfo = %d", rc)); | |
4154 | } else { /* decode response */ | |
4155 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4156 | ||
4157 | if (rc || (pSMBr->ByteCount < 13)) { | |
4158 | rc = -EIO; /* bad smb */ | |
4159 | } else { | |
4160 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
4161 | response_data = | |
4162 | (FILE_SYSTEM_UNIX_INFO | |
4163 | *) (((char *) &pSMBr->hdr.Protocol) + | |
4164 | data_offset); | |
4165 | memcpy(&tcon->fsUnixInfo, response_data, | |
4166 | sizeof (FILE_SYSTEM_UNIX_INFO)); | |
4167 | } | |
4168 | } | |
4169 | cifs_buf_release(pSMB); | |
4170 | ||
4171 | if (rc == -EAGAIN) | |
4172 | goto QFSUnixRetry; | |
4173 | ||
4174 | ||
4175 | return rc; | |
4176 | } | |
4177 | ||
ac67055e | 4178 | int |
45abc6ee | 4179 | CIFSSMBSetFSUnixInfo(const int xid, struct cifsTconInfo *tcon, __u64 cap) |
ac67055e JA |
4180 | { |
4181 | /* level 0x200 SMB_SET_CIFS_UNIX_INFO */ | |
4182 | TRANSACTION2_SETFSI_REQ *pSMB = NULL; | |
4183 | TRANSACTION2_SETFSI_RSP *pSMBr = NULL; | |
4184 | int rc = 0; | |
4185 | int bytes_returned = 0; | |
4186 | __u16 params, param_offset, offset, byte_count; | |
4187 | ||
4188 | cFYI(1, ("In SETFSUnixInfo")); | |
4189 | SETFSUnixRetry: | |
f26282c9 | 4190 | /* BB switch to small buf init to save memory */ |
ac67055e JA |
4191 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
4192 | (void **) &pSMBr); | |
4193 | if (rc) | |
4194 | return rc; | |
4195 | ||
4196 | params = 4; /* 2 bytes zero followed by info level. */ | |
4197 | pSMB->MaxSetupCount = 0; | |
4198 | pSMB->Reserved = 0; | |
4199 | pSMB->Flags = 0; | |
4200 | pSMB->Timeout = 0; | |
4201 | pSMB->Reserved2 = 0; | |
4202 | param_offset = offsetof(struct smb_com_transaction2_setfsi_req, FileNum) - 4; | |
4203 | offset = param_offset + params; | |
4204 | ||
4205 | pSMB->MaxParameterCount = cpu_to_le16(4); | |
4206 | pSMB->MaxDataCount = cpu_to_le16(100); /* BB find exact max SMB PDU from sess structure BB */ | |
4207 | pSMB->SetupCount = 1; | |
4208 | pSMB->Reserved3 = 0; | |
4209 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FS_INFORMATION); | |
4210 | byte_count = 1 /* pad */ + params + 12; | |
4211 | ||
4212 | pSMB->DataCount = cpu_to_le16(12); | |
4213 | pSMB->ParameterCount = cpu_to_le16(params); | |
4214 | pSMB->TotalDataCount = pSMB->DataCount; | |
4215 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4216 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4217 | pSMB->DataOffset = cpu_to_le16(offset); | |
4218 | ||
4219 | /* Params. */ | |
4220 | pSMB->FileNum = 0; | |
4221 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_CIFS_UNIX_INFO); | |
4222 | ||
4223 | /* Data. */ | |
4224 | pSMB->ClientUnixMajor = cpu_to_le16(CIFS_UNIX_MAJOR_VERSION); | |
4225 | pSMB->ClientUnixMinor = cpu_to_le16(CIFS_UNIX_MINOR_VERSION); | |
4226 | pSMB->ClientUnixCap = cpu_to_le64(cap); | |
4227 | ||
4228 | pSMB->hdr.smb_buf_length += byte_count; | |
4229 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4230 | ||
4231 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4232 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4233 | if (rc) { | |
4234 | cERROR(1, ("Send error in SETFSUnixInfo = %d", rc)); | |
4235 | } else { /* decode response */ | |
4236 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4237 | if (rc) { | |
4238 | rc = -EIO; /* bad smb */ | |
4239 | } | |
4240 | } | |
4241 | cifs_buf_release(pSMB); | |
4242 | ||
4243 | if (rc == -EAGAIN) | |
4244 | goto SETFSUnixRetry; | |
4245 | ||
4246 | return rc; | |
4247 | } | |
4248 | ||
4249 | ||
1da177e4 LT |
4250 | |
4251 | int | |
4252 | CIFSSMBQFSPosixInfo(const int xid, struct cifsTconInfo *tcon, | |
737b758c | 4253 | struct kstatfs *FSData) |
1da177e4 LT |
4254 | { |
4255 | /* level 0x201 SMB_QUERY_CIFS_POSIX_INFO */ | |
4256 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4257 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4258 | FILE_SYSTEM_POSIX_INFO *response_data; | |
4259 | int rc = 0; | |
4260 | int bytes_returned = 0; | |
4261 | __u16 params, byte_count; | |
4262 | ||
4263 | cFYI(1, ("In QFSPosixInfo")); | |
4264 | QFSPosixRetry: | |
4265 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4266 | (void **) &pSMBr); | |
4267 | if (rc) | |
4268 | return rc; | |
4269 | ||
4270 | params = 2; /* level */ | |
4271 | pSMB->TotalDataCount = 0; | |
4272 | pSMB->DataCount = 0; | |
4273 | pSMB->DataOffset = 0; | |
4274 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4275 | pSMB->MaxDataCount = cpu_to_le16(100); /* BB find exact max SMB PDU from sess structure BB */ | |
4276 | pSMB->MaxSetupCount = 0; | |
4277 | pSMB->Reserved = 0; | |
4278 | pSMB->Flags = 0; | |
4279 | pSMB->Timeout = 0; | |
4280 | pSMB->Reserved2 = 0; | |
4281 | byte_count = params + 1 /* pad */ ; | |
4282 | pSMB->ParameterCount = cpu_to_le16(params); | |
4283 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4284 | pSMB->ParameterOffset = cpu_to_le16(offsetof(struct | |
4285 | smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
4286 | pSMB->SetupCount = 1; | |
4287 | pSMB->Reserved3 = 0; | |
4288 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4289 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_POSIX_FS_INFO); | |
4290 | pSMB->hdr.smb_buf_length += byte_count; | |
4291 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4292 | ||
4293 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4294 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4295 | if (rc) { | |
4296 | cFYI(1, ("Send error in QFSUnixInfo = %d", rc)); | |
4297 | } else { /* decode response */ | |
4298 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4299 | ||
4300 | if (rc || (pSMBr->ByteCount < 13)) { | |
4301 | rc = -EIO; /* bad smb */ | |
4302 | } else { | |
4303 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
4304 | response_data = | |
4305 | (FILE_SYSTEM_POSIX_INFO | |
4306 | *) (((char *) &pSMBr->hdr.Protocol) + | |
4307 | data_offset); | |
4308 | FSData->f_bsize = | |
4309 | le32_to_cpu(response_data->BlockSize); | |
4310 | FSData->f_blocks = | |
4311 | le64_to_cpu(response_data->TotalBlocks); | |
4312 | FSData->f_bfree = | |
4313 | le64_to_cpu(response_data->BlocksAvail); | |
70ca734a | 4314 | if(response_data->UserBlocksAvail == cpu_to_le64(-1)) { |
1da177e4 LT |
4315 | FSData->f_bavail = FSData->f_bfree; |
4316 | } else { | |
4317 | FSData->f_bavail = | |
4318 | le64_to_cpu(response_data->UserBlocksAvail); | |
4319 | } | |
70ca734a | 4320 | if(response_data->TotalFileNodes != cpu_to_le64(-1)) |
1da177e4 LT |
4321 | FSData->f_files = |
4322 | le64_to_cpu(response_data->TotalFileNodes); | |
70ca734a | 4323 | if(response_data->FreeFileNodes != cpu_to_le64(-1)) |
1da177e4 LT |
4324 | FSData->f_ffree = |
4325 | le64_to_cpu(response_data->FreeFileNodes); | |
4326 | } | |
4327 | } | |
4328 | cifs_buf_release(pSMB); | |
4329 | ||
4330 | if (rc == -EAGAIN) | |
4331 | goto QFSPosixRetry; | |
4332 | ||
4333 | return rc; | |
4334 | } | |
4335 | ||
4336 | ||
4337 | /* We can not use write of zero bytes trick to | |
4338 | set file size due to need for large file support. Also note that | |
4339 | this SetPathInfo is preferred to SetFileInfo based method in next | |
4340 | routine which is only needed to work around a sharing violation bug | |
4341 | in Samba which this routine can run into */ | |
4342 | ||
4343 | int | |
4344 | CIFSSMBSetEOF(const int xid, struct cifsTconInfo *tcon, const char *fileName, | |
737b758c SF |
4345 | __u64 size, int SetAllocation, |
4346 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
4347 | { |
4348 | struct smb_com_transaction2_spi_req *pSMB = NULL; | |
4349 | struct smb_com_transaction2_spi_rsp *pSMBr = NULL; | |
4350 | struct file_end_of_file_info *parm_data; | |
4351 | int name_len; | |
4352 | int rc = 0; | |
4353 | int bytes_returned = 0; | |
4354 | __u16 params, byte_count, data_count, param_offset, offset; | |
4355 | ||
4356 | cFYI(1, ("In SetEOF")); | |
4357 | SetEOFRetry: | |
4358 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4359 | (void **) &pSMBr); | |
4360 | if (rc) | |
4361 | return rc; | |
4362 | ||
4363 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
4364 | name_len = | |
b1a45695 | 4365 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 4366 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
4367 | name_len++; /* trailing null */ |
4368 | name_len *= 2; | |
3e87d803 | 4369 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
4370 | name_len = strnlen(fileName, PATH_MAX); |
4371 | name_len++; /* trailing null */ | |
4372 | strncpy(pSMB->FileName, fileName, name_len); | |
4373 | } | |
4374 | params = 6 + name_len; | |
4375 | data_count = sizeof (struct file_end_of_file_info); | |
4376 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3e87d803 | 4377 | pSMB->MaxDataCount = cpu_to_le16(4100); |
1da177e4 LT |
4378 | pSMB->MaxSetupCount = 0; |
4379 | pSMB->Reserved = 0; | |
4380 | pSMB->Flags = 0; | |
4381 | pSMB->Timeout = 0; | |
4382 | pSMB->Reserved2 = 0; | |
4383 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
4384 | InformationLevel) - 4; | |
4385 | offset = param_offset + params; | |
4386 | if(SetAllocation) { | |
4387 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) | |
4388 | pSMB->InformationLevel = | |
4389 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO2); | |
4390 | else | |
4391 | pSMB->InformationLevel = | |
4392 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO); | |
4393 | } else /* Set File Size */ { | |
4394 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) | |
4395 | pSMB->InformationLevel = | |
4396 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO2); | |
4397 | else | |
4398 | pSMB->InformationLevel = | |
4399 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO); | |
4400 | } | |
4401 | ||
4402 | parm_data = | |
4403 | (struct file_end_of_file_info *) (((char *) &pSMB->hdr.Protocol) + | |
4404 | offset); | |
4405 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4406 | pSMB->DataOffset = cpu_to_le16(offset); | |
4407 | pSMB->SetupCount = 1; | |
4408 | pSMB->Reserved3 = 0; | |
4409 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
4410 | byte_count = 3 /* pad */ + params + data_count; | |
4411 | pSMB->DataCount = cpu_to_le16(data_count); | |
4412 | pSMB->TotalDataCount = pSMB->DataCount; | |
4413 | pSMB->ParameterCount = cpu_to_le16(params); | |
4414 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4415 | pSMB->Reserved4 = 0; | |
4416 | pSMB->hdr.smb_buf_length += byte_count; | |
4417 | parm_data->FileSize = cpu_to_le64(size); | |
4418 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4419 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4420 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4421 | if (rc) { | |
4422 | cFYI(1, ("SetPathInfo (file size) returned %d", rc)); | |
4423 | } | |
4424 | ||
4425 | cifs_buf_release(pSMB); | |
4426 | ||
4427 | if (rc == -EAGAIN) | |
4428 | goto SetEOFRetry; | |
4429 | ||
4430 | return rc; | |
4431 | } | |
4432 | ||
4433 | int | |
4434 | CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon, __u64 size, | |
4435 | __u16 fid, __u32 pid_of_opener, int SetAllocation) | |
4436 | { | |
4437 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
4438 | struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; | |
4439 | char *data_offset; | |
4440 | struct file_end_of_file_info *parm_data; | |
4441 | int rc = 0; | |
4442 | int bytes_returned = 0; | |
4443 | __u16 params, param_offset, offset, byte_count, count; | |
4444 | ||
4445 | cFYI(1, ("SetFileSize (via SetFileInfo) %lld", | |
4446 | (long long)size)); | |
cd63499c SF |
4447 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
4448 | ||
1da177e4 LT |
4449 | if (rc) |
4450 | return rc; | |
4451 | ||
cd63499c SF |
4452 | pSMBr = (struct smb_com_transaction2_sfi_rsp *)pSMB; |
4453 | ||
1da177e4 LT |
4454 | pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener); |
4455 | pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16)); | |
4456 | ||
4457 | params = 6; | |
4458 | pSMB->MaxSetupCount = 0; | |
4459 | pSMB->Reserved = 0; | |
4460 | pSMB->Flags = 0; | |
4461 | pSMB->Timeout = 0; | |
4462 | pSMB->Reserved2 = 0; | |
4463 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
4464 | offset = param_offset + params; | |
4465 | ||
4466 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
4467 | ||
4468 | count = sizeof(struct file_end_of_file_info); | |
4469 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4470 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB PDU from sess */ | |
4471 | pSMB->SetupCount = 1; | |
4472 | pSMB->Reserved3 = 0; | |
4473 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
4474 | byte_count = 3 /* pad */ + params + count; | |
4475 | pSMB->DataCount = cpu_to_le16(count); | |
4476 | pSMB->ParameterCount = cpu_to_le16(params); | |
4477 | pSMB->TotalDataCount = pSMB->DataCount; | |
4478 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4479 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4480 | parm_data = | |
4481 | (struct file_end_of_file_info *) (((char *) &pSMB->hdr.Protocol) + | |
4482 | offset); | |
4483 | pSMB->DataOffset = cpu_to_le16(offset); | |
4484 | parm_data->FileSize = cpu_to_le64(size); | |
4485 | pSMB->Fid = fid; | |
4486 | if(SetAllocation) { | |
4487 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) | |
4488 | pSMB->InformationLevel = | |
4489 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO2); | |
4490 | else | |
4491 | pSMB->InformationLevel = | |
4492 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO); | |
4493 | } else /* Set File Size */ { | |
4494 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) | |
4495 | pSMB->InformationLevel = | |
4496 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO2); | |
4497 | else | |
4498 | pSMB->InformationLevel = | |
4499 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO); | |
4500 | } | |
4501 | pSMB->Reserved4 = 0; | |
4502 | pSMB->hdr.smb_buf_length += byte_count; | |
4503 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4504 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4505 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4506 | if (rc) { | |
4507 | cFYI(1, | |
4508 | ("Send error in SetFileInfo (SetFileSize) = %d", | |
4509 | rc)); | |
4510 | } | |
4511 | ||
4512 | if (pSMB) | |
cd63499c | 4513 | cifs_small_buf_release(pSMB); |
1da177e4 LT |
4514 | |
4515 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
4516 | since file handle passed in no longer valid */ | |
4517 | ||
4518 | return rc; | |
4519 | } | |
4520 | ||
4521 | /* Some legacy servers such as NT4 require that the file times be set on | |
4522 | an open handle, rather than by pathname - this is awkward due to | |
4523 | potential access conflicts on the open, but it is unavoidable for these | |
4524 | old servers since the only other choice is to go from 100 nanosecond DCE | |
4525 | time and resort to the original setpathinfo level which takes the ancient | |
4526 | DOS time format with 2 second granularity */ | |
4527 | int | |
4528 | CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon, const FILE_BASIC_INFO * data, | |
4529 | __u16 fid) | |
4530 | { | |
4531 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
4532 | struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; | |
4533 | char *data_offset; | |
4534 | int rc = 0; | |
4535 | int bytes_returned = 0; | |
4536 | __u16 params, param_offset, offset, byte_count, count; | |
4537 | ||
4538 | cFYI(1, ("Set Times (via SetFileInfo)")); | |
cd63499c SF |
4539 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
4540 | ||
1da177e4 LT |
4541 | if (rc) |
4542 | return rc; | |
4543 | ||
cd63499c SF |
4544 | pSMBr = (struct smb_com_transaction2_sfi_rsp *)pSMB; |
4545 | ||
1da177e4 LT |
4546 | /* At this point there is no need to override the current pid |
4547 | with the pid of the opener, but that could change if we someday | |
4548 | use an existing handle (rather than opening one on the fly) */ | |
4549 | /* pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener); | |
4550 | pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16));*/ | |
4551 | ||
4552 | params = 6; | |
4553 | pSMB->MaxSetupCount = 0; | |
4554 | pSMB->Reserved = 0; | |
4555 | pSMB->Flags = 0; | |
4556 | pSMB->Timeout = 0; | |
4557 | pSMB->Reserved2 = 0; | |
4558 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
4559 | offset = param_offset + params; | |
4560 | ||
4561 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
4562 | ||
4563 | count = sizeof (FILE_BASIC_INFO); | |
4564 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4565 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB PDU from sess */ | |
4566 | pSMB->SetupCount = 1; | |
4567 | pSMB->Reserved3 = 0; | |
4568 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
4569 | byte_count = 3 /* pad */ + params + count; | |
4570 | pSMB->DataCount = cpu_to_le16(count); | |
4571 | pSMB->ParameterCount = cpu_to_le16(params); | |
4572 | pSMB->TotalDataCount = pSMB->DataCount; | |
4573 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4574 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4575 | pSMB->DataOffset = cpu_to_le16(offset); | |
4576 | pSMB->Fid = fid; | |
4577 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) | |
4578 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO2); | |
4579 | else | |
4580 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO); | |
4581 | pSMB->Reserved4 = 0; | |
4582 | pSMB->hdr.smb_buf_length += byte_count; | |
4583 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4584 | memcpy(data_offset,data,sizeof(FILE_BASIC_INFO)); | |
4585 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4586 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4587 | if (rc) { | |
4588 | cFYI(1,("Send error in Set Time (SetFileInfo) = %d",rc)); | |
4589 | } | |
4590 | ||
cd63499c | 4591 | cifs_small_buf_release(pSMB); |
1da177e4 LT |
4592 | |
4593 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
4594 | since file handle passed in no longer valid */ | |
4595 | ||
4596 | return rc; | |
4597 | } | |
4598 | ||
4599 | ||
4600 | int | |
4601 | CIFSSMBSetTimes(const int xid, struct cifsTconInfo *tcon, const char *fileName, | |
4602 | const FILE_BASIC_INFO * data, | |
737b758c | 4603 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
4604 | { |
4605 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
4606 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
4607 | int name_len; | |
4608 | int rc = 0; | |
4609 | int bytes_returned = 0; | |
4610 | char *data_offset; | |
4611 | __u16 params, param_offset, offset, byte_count, count; | |
4612 | ||
4613 | cFYI(1, ("In SetTimes")); | |
4614 | ||
4615 | SetTimesRetry: | |
4616 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4617 | (void **) &pSMBr); | |
4618 | if (rc) | |
4619 | return rc; | |
4620 | ||
4621 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
4622 | name_len = | |
b1a45695 | 4623 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 4624 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
4625 | name_len++; /* trailing null */ |
4626 | name_len *= 2; | |
4627 | } else { /* BB improve the check for buffer overruns BB */ | |
4628 | name_len = strnlen(fileName, PATH_MAX); | |
4629 | name_len++; /* trailing null */ | |
4630 | strncpy(pSMB->FileName, fileName, name_len); | |
4631 | } | |
4632 | ||
4633 | params = 6 + name_len; | |
4634 | count = sizeof (FILE_BASIC_INFO); | |
4635 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4636 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find exact max SMB PDU from sess structure BB */ | |
4637 | pSMB->MaxSetupCount = 0; | |
4638 | pSMB->Reserved = 0; | |
4639 | pSMB->Flags = 0; | |
4640 | pSMB->Timeout = 0; | |
4641 | pSMB->Reserved2 = 0; | |
4642 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
4643 | InformationLevel) - 4; | |
4644 | offset = param_offset + params; | |
4645 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
4646 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4647 | pSMB->DataOffset = cpu_to_le16(offset); | |
4648 | pSMB->SetupCount = 1; | |
4649 | pSMB->Reserved3 = 0; | |
4650 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
4651 | byte_count = 3 /* pad */ + params + count; | |
4652 | ||
4653 | pSMB->DataCount = cpu_to_le16(count); | |
4654 | pSMB->ParameterCount = cpu_to_le16(params); | |
4655 | pSMB->TotalDataCount = pSMB->DataCount; | |
4656 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4657 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) | |
4658 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO2); | |
4659 | else | |
4660 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO); | |
4661 | pSMB->Reserved4 = 0; | |
4662 | pSMB->hdr.smb_buf_length += byte_count; | |
4663 | memcpy(data_offset, data, sizeof (FILE_BASIC_INFO)); | |
4664 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4665 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4666 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4667 | if (rc) { | |
4668 | cFYI(1, ("SetPathInfo (times) returned %d", rc)); | |
4669 | } | |
4670 | ||
4671 | cifs_buf_release(pSMB); | |
4672 | ||
4673 | if (rc == -EAGAIN) | |
4674 | goto SetTimesRetry; | |
4675 | ||
4676 | return rc; | |
4677 | } | |
4678 | ||
4679 | /* Can not be used to set time stamps yet (due to old DOS time format) */ | |
4680 | /* Can be used to set attributes */ | |
4681 | #if 0 /* Possibly not needed - since it turns out that strangely NT4 has a bug | |
4682 | handling it anyway and NT4 was what we thought it would be needed for | |
4683 | Do not delete it until we prove whether needed for Win9x though */ | |
4684 | int | |
4685 | CIFSSMBSetAttrLegacy(int xid, struct cifsTconInfo *tcon, char *fileName, | |
4686 | __u16 dos_attrs, const struct nls_table *nls_codepage) | |
4687 | { | |
4688 | SETATTR_REQ *pSMB = NULL; | |
4689 | SETATTR_RSP *pSMBr = NULL; | |
4690 | int rc = 0; | |
4691 | int bytes_returned; | |
4692 | int name_len; | |
4693 | ||
4694 | cFYI(1, ("In SetAttrLegacy")); | |
4695 | ||
4696 | SetAttrLgcyRetry: | |
4697 | rc = smb_init(SMB_COM_SETATTR, 8, tcon, (void **) &pSMB, | |
4698 | (void **) &pSMBr); | |
4699 | if (rc) | |
4700 | return rc; | |
4701 | ||
4702 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
4703 | name_len = | |
b1a45695 | 4704 | ConvertToUCS((__le16 *) pSMB->fileName, fileName, |
1da177e4 LT |
4705 | PATH_MAX, nls_codepage); |
4706 | name_len++; /* trailing null */ | |
4707 | name_len *= 2; | |
4708 | } else { /* BB improve the check for buffer overruns BB */ | |
4709 | name_len = strnlen(fileName, PATH_MAX); | |
4710 | name_len++; /* trailing null */ | |
4711 | strncpy(pSMB->fileName, fileName, name_len); | |
4712 | } | |
4713 | pSMB->attr = cpu_to_le16(dos_attrs); | |
4714 | pSMB->BufferFormat = 0x04; | |
4715 | pSMB->hdr.smb_buf_length += name_len + 1; | |
4716 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
4717 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4718 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4719 | if (rc) { | |
4720 | cFYI(1, ("Error in LegacySetAttr = %d", rc)); | |
4721 | } | |
4722 | ||
4723 | cifs_buf_release(pSMB); | |
4724 | ||
4725 | if (rc == -EAGAIN) | |
4726 | goto SetAttrLgcyRetry; | |
4727 | ||
4728 | return rc; | |
4729 | } | |
4730 | #endif /* temporarily unneeded SetAttr legacy function */ | |
4731 | ||
4732 | int | |
4733 | CIFSSMBUnixSetPerms(const int xid, struct cifsTconInfo *tcon, | |
737b758c SF |
4734 | char *fileName, __u64 mode, __u64 uid, __u64 gid, |
4735 | dev_t device, const struct nls_table *nls_codepage, | |
4736 | int remap) | |
1da177e4 LT |
4737 | { |
4738 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
4739 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
4740 | int name_len; | |
4741 | int rc = 0; | |
4742 | int bytes_returned = 0; | |
4743 | FILE_UNIX_BASIC_INFO *data_offset; | |
4744 | __u16 params, param_offset, offset, count, byte_count; | |
4745 | ||
4746 | cFYI(1, ("In SetUID/GID/Mode")); | |
4747 | setPermsRetry: | |
4748 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4749 | (void **) &pSMBr); | |
4750 | if (rc) | |
4751 | return rc; | |
4752 | ||
4753 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
4754 | name_len = | |
b1a45695 | 4755 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 4756 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
4757 | name_len++; /* trailing null */ |
4758 | name_len *= 2; | |
3e87d803 | 4759 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
4760 | name_len = strnlen(fileName, PATH_MAX); |
4761 | name_len++; /* trailing null */ | |
4762 | strncpy(pSMB->FileName, fileName, name_len); | |
4763 | } | |
4764 | ||
4765 | params = 6 + name_len; | |
4766 | count = sizeof (FILE_UNIX_BASIC_INFO); | |
4767 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4768 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find exact max SMB PDU from sess structure BB */ | |
4769 | pSMB->MaxSetupCount = 0; | |
4770 | pSMB->Reserved = 0; | |
4771 | pSMB->Flags = 0; | |
4772 | pSMB->Timeout = 0; | |
4773 | pSMB->Reserved2 = 0; | |
4774 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
4775 | InformationLevel) - 4; | |
4776 | offset = param_offset + params; | |
4777 | data_offset = | |
4778 | (FILE_UNIX_BASIC_INFO *) ((char *) &pSMB->hdr.Protocol + | |
4779 | offset); | |
4780 | memset(data_offset, 0, count); | |
4781 | pSMB->DataOffset = cpu_to_le16(offset); | |
4782 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4783 | pSMB->SetupCount = 1; | |
4784 | pSMB->Reserved3 = 0; | |
4785 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
4786 | byte_count = 3 /* pad */ + params + count; | |
4787 | pSMB->ParameterCount = cpu_to_le16(params); | |
4788 | pSMB->DataCount = cpu_to_le16(count); | |
4789 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4790 | pSMB->TotalDataCount = pSMB->DataCount; | |
4791 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_BASIC); | |
4792 | pSMB->Reserved4 = 0; | |
4793 | pSMB->hdr.smb_buf_length += byte_count; | |
4794 | data_offset->Uid = cpu_to_le64(uid); | |
4795 | data_offset->Gid = cpu_to_le64(gid); | |
4796 | /* better to leave device as zero when it is */ | |
4797 | data_offset->DevMajor = cpu_to_le64(MAJOR(device)); | |
4798 | data_offset->DevMinor = cpu_to_le64(MINOR(device)); | |
4799 | data_offset->Permissions = cpu_to_le64(mode); | |
4800 | ||
4801 | if(S_ISREG(mode)) | |
4802 | data_offset->Type = cpu_to_le32(UNIX_FILE); | |
4803 | else if(S_ISDIR(mode)) | |
4804 | data_offset->Type = cpu_to_le32(UNIX_DIR); | |
4805 | else if(S_ISLNK(mode)) | |
4806 | data_offset->Type = cpu_to_le32(UNIX_SYMLINK); | |
4807 | else if(S_ISCHR(mode)) | |
4808 | data_offset->Type = cpu_to_le32(UNIX_CHARDEV); | |
4809 | else if(S_ISBLK(mode)) | |
4810 | data_offset->Type = cpu_to_le32(UNIX_BLOCKDEV); | |
4811 | else if(S_ISFIFO(mode)) | |
4812 | data_offset->Type = cpu_to_le32(UNIX_FIFO); | |
4813 | else if(S_ISSOCK(mode)) | |
4814 | data_offset->Type = cpu_to_le32(UNIX_SOCKET); | |
4815 | ||
4816 | ||
4817 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4818 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4819 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4820 | if (rc) { | |
4821 | cFYI(1, ("SetPathInfo (perms) returned %d", rc)); | |
4822 | } | |
4823 | ||
4824 | if (pSMB) | |
4825 | cifs_buf_release(pSMB); | |
4826 | if (rc == -EAGAIN) | |
4827 | goto setPermsRetry; | |
4828 | return rc; | |
4829 | } | |
4830 | ||
4831 | int CIFSSMBNotify(const int xid, struct cifsTconInfo *tcon, | |
167a251a SF |
4832 | const int notify_subdirs, const __u16 netfid, |
4833 | __u32 filter, struct file * pfile, int multishot, | |
4834 | const struct nls_table *nls_codepage) | |
1da177e4 LT |
4835 | { |
4836 | int rc = 0; | |
4837 | struct smb_com_transaction_change_notify_req * pSMB = NULL; | |
0a4b92c0 | 4838 | struct smb_com_ntransaction_change_notify_rsp * pSMBr = NULL; |
abb15b8a | 4839 | struct dir_notify_req *dnotify_req; |
1da177e4 LT |
4840 | int bytes_returned; |
4841 | ||
4842 | cFYI(1, ("In CIFSSMBNotify for file handle %d",(int)netfid)); | |
4843 | rc = smb_init(SMB_COM_NT_TRANSACT, 23, tcon, (void **) &pSMB, | |
4844 | (void **) &pSMBr); | |
4845 | if (rc) | |
4846 | return rc; | |
4847 | ||
4848 | pSMB->TotalParameterCount = 0 ; | |
4849 | pSMB->TotalDataCount = 0; | |
4850 | pSMB->MaxParameterCount = cpu_to_le32(2); | |
4851 | /* BB find exact data count max from sess structure BB */ | |
4852 | pSMB->MaxDataCount = 0; /* same in little endian or be */ | |
0a4b92c0 SF |
4853 | /* BB VERIFY verify which is correct for above BB */ |
4854 | pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf - | |
4855 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
4856 | ||
1da177e4 LT |
4857 | pSMB->MaxSetupCount = 4; |
4858 | pSMB->Reserved = 0; | |
4859 | pSMB->ParameterOffset = 0; | |
4860 | pSMB->DataCount = 0; | |
4861 | pSMB->DataOffset = 0; | |
4862 | pSMB->SetupCount = 4; /* single byte does not need le conversion */ | |
4863 | pSMB->SubCommand = cpu_to_le16(NT_TRANSACT_NOTIFY_CHANGE); | |
4864 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
4865 | if(notify_subdirs) | |
4866 | pSMB->WatchTree = 1; /* one byte - no le conversion needed */ | |
4867 | pSMB->Reserved2 = 0; | |
4868 | pSMB->CompletionFilter = cpu_to_le32(filter); | |
4869 | pSMB->Fid = netfid; /* file handle always le */ | |
4870 | pSMB->ByteCount = 0; | |
4871 | ||
4872 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4873 | (struct smb_hdr *) pSMBr, &bytes_returned, -1); | |
4874 | if (rc) { | |
4875 | cFYI(1, ("Error in Notify = %d", rc)); | |
ff5dbd9e SF |
4876 | } else { |
4877 | /* Add file to outstanding requests */ | |
47c786e7 | 4878 | /* BB change to kmem cache alloc */ |
5cbded58 | 4879 | dnotify_req = kmalloc( |
47c786e7 SF |
4880 | sizeof(struct dir_notify_req), |
4881 | GFP_KERNEL); | |
4882 | if(dnotify_req) { | |
4883 | dnotify_req->Pid = pSMB->hdr.Pid; | |
4884 | dnotify_req->PidHigh = pSMB->hdr.PidHigh; | |
4885 | dnotify_req->Mid = pSMB->hdr.Mid; | |
4886 | dnotify_req->Tid = pSMB->hdr.Tid; | |
4887 | dnotify_req->Uid = pSMB->hdr.Uid; | |
4888 | dnotify_req->netfid = netfid; | |
4889 | dnotify_req->pfile = pfile; | |
4890 | dnotify_req->filter = filter; | |
4891 | dnotify_req->multishot = multishot; | |
4892 | spin_lock(&GlobalMid_Lock); | |
4893 | list_add_tail(&dnotify_req->lhead, | |
4894 | &GlobalDnotifyReqList); | |
4895 | spin_unlock(&GlobalMid_Lock); | |
4896 | } else | |
4897 | rc = -ENOMEM; | |
1da177e4 LT |
4898 | } |
4899 | cifs_buf_release(pSMB); | |
4900 | return rc; | |
4901 | } | |
4902 | #ifdef CONFIG_CIFS_XATTR | |
4903 | ssize_t | |
4904 | CIFSSMBQAllEAs(const int xid, struct cifsTconInfo *tcon, | |
4905 | const unsigned char *searchName, | |
4906 | char * EAData, size_t buf_size, | |
737b758c | 4907 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
4908 | { |
4909 | /* BB assumes one setup word */ | |
4910 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
4911 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
4912 | int rc = 0; | |
4913 | int bytes_returned; | |
4914 | int name_len; | |
4915 | struct fea * temp_fea; | |
4916 | char * temp_ptr; | |
4917 | __u16 params, byte_count; | |
4918 | ||
4919 | cFYI(1, ("In Query All EAs path %s", searchName)); | |
4920 | QAllEAsRetry: | |
4921 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4922 | (void **) &pSMBr); | |
4923 | if (rc) | |
4924 | return rc; | |
4925 | ||
4926 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
4927 | name_len = | |
b1a45695 | 4928 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 4929 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
4930 | name_len++; /* trailing null */ |
4931 | name_len *= 2; | |
4932 | } else { /* BB improve the check for buffer overruns BB */ | |
4933 | name_len = strnlen(searchName, PATH_MAX); | |
4934 | name_len++; /* trailing null */ | |
4935 | strncpy(pSMB->FileName, searchName, name_len); | |
4936 | } | |
4937 | ||
4938 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */ ; | |
4939 | pSMB->TotalDataCount = 0; | |
4940 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4941 | pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ | |
4942 | pSMB->MaxSetupCount = 0; | |
4943 | pSMB->Reserved = 0; | |
4944 | pSMB->Flags = 0; | |
4945 | pSMB->Timeout = 0; | |
4946 | pSMB->Reserved2 = 0; | |
4947 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
4948 | struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); | |
4949 | pSMB->DataCount = 0; | |
4950 | pSMB->DataOffset = 0; | |
4951 | pSMB->SetupCount = 1; | |
4952 | pSMB->Reserved3 = 0; | |
4953 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
4954 | byte_count = params + 1 /* pad */ ; | |
4955 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
4956 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
4957 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_QUERY_ALL_EAS); | |
4958 | pSMB->Reserved4 = 0; | |
4959 | pSMB->hdr.smb_buf_length += byte_count; | |
4960 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4961 | ||
4962 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4963 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4964 | if (rc) { | |
4965 | cFYI(1, ("Send error in QueryAllEAs = %d", rc)); | |
4966 | } else { /* decode response */ | |
4967 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4968 | ||
4969 | /* BB also check enough total bytes returned */ | |
4970 | /* BB we need to improve the validity checking | |
4971 | of these trans2 responses */ | |
4972 | if (rc || (pSMBr->ByteCount < 4)) | |
4973 | rc = -EIO; /* bad smb */ | |
4974 | /* else if (pFindData){ | |
4975 | memcpy((char *) pFindData, | |
4976 | (char *) &pSMBr->hdr.Protocol + | |
4977 | data_offset, kl); | |
4978 | }*/ else { | |
4979 | /* check that length of list is not more than bcc */ | |
4980 | /* check that each entry does not go beyond length | |
4981 | of list */ | |
4982 | /* check that each element of each entry does not | |
4983 | go beyond end of list */ | |
4984 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
4985 | struct fealist * ea_response_data; | |
4986 | rc = 0; | |
4987 | /* validate_trans2_offsets() */ | |
4988 | /* BB to check if(start of smb + data_offset > &bcc+ bcc)*/ | |
4989 | ea_response_data = (struct fealist *) | |
4990 | (((char *) &pSMBr->hdr.Protocol) + | |
4991 | data_offset); | |
4992 | name_len = le32_to_cpu(ea_response_data->list_len); | |
4993 | cFYI(1,("ea length %d", name_len)); | |
4994 | if(name_len <= 8) { | |
4995 | /* returned EA size zeroed at top of function */ | |
4996 | cFYI(1,("empty EA list returned from server")); | |
4997 | } else { | |
4998 | /* account for ea list len */ | |
4999 | name_len -= 4; | |
5000 | temp_fea = ea_response_data->list; | |
5001 | temp_ptr = (char *)temp_fea; | |
5002 | while(name_len > 0) { | |
5003 | __u16 value_len; | |
5004 | name_len -= 4; | |
5005 | temp_ptr += 4; | |
5006 | rc += temp_fea->name_len; | |
5007 | /* account for prefix user. and trailing null */ | |
5008 | rc = rc + 5 + 1; | |
5009 | if(rc<(int)buf_size) { | |
5010 | memcpy(EAData,"user.",5); | |
5011 | EAData+=5; | |
5012 | memcpy(EAData,temp_ptr,temp_fea->name_len); | |
5013 | EAData+=temp_fea->name_len; | |
5014 | /* null terminate name */ | |
5015 | *EAData = 0; | |
5016 | EAData = EAData + 1; | |
5017 | } else if(buf_size == 0) { | |
5018 | /* skip copy - calc size only */ | |
5019 | } else { | |
5020 | /* stop before overrun buffer */ | |
5021 | rc = -ERANGE; | |
5022 | break; | |
5023 | } | |
5024 | name_len -= temp_fea->name_len; | |
5025 | temp_ptr += temp_fea->name_len; | |
5026 | /* account for trailing null */ | |
5027 | name_len--; | |
5028 | temp_ptr++; | |
5029 | value_len = le16_to_cpu(temp_fea->value_len); | |
5030 | name_len -= value_len; | |
5031 | temp_ptr += value_len; | |
5032 | /* BB check that temp_ptr is still within smb BB*/ | |
5033 | /* no trailing null to account for in value len */ | |
5034 | /* go on to next EA */ | |
5035 | temp_fea = (struct fea *)temp_ptr; | |
5036 | } | |
5037 | } | |
5038 | } | |
5039 | } | |
5040 | if (pSMB) | |
5041 | cifs_buf_release(pSMB); | |
5042 | if (rc == -EAGAIN) | |
5043 | goto QAllEAsRetry; | |
5044 | ||
5045 | return (ssize_t)rc; | |
5046 | } | |
5047 | ||
5048 | ssize_t CIFSSMBQueryEA(const int xid,struct cifsTconInfo * tcon, | |
5049 | const unsigned char * searchName,const unsigned char * ea_name, | |
5050 | unsigned char * ea_value, size_t buf_size, | |
737b758c | 5051 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
5052 | { |
5053 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
5054 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
5055 | int rc = 0; | |
5056 | int bytes_returned; | |
5057 | int name_len; | |
5058 | struct fea * temp_fea; | |
5059 | char * temp_ptr; | |
5060 | __u16 params, byte_count; | |
5061 | ||
5062 | cFYI(1, ("In Query EA path %s", searchName)); | |
5063 | QEARetry: | |
5064 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
5065 | (void **) &pSMBr); | |
5066 | if (rc) | |
5067 | return rc; | |
5068 | ||
5069 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
5070 | name_len = | |
b1a45695 | 5071 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 5072 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
5073 | name_len++; /* trailing null */ |
5074 | name_len *= 2; | |
5075 | } else { /* BB improve the check for buffer overruns BB */ | |
5076 | name_len = strnlen(searchName, PATH_MAX); | |
5077 | name_len++; /* trailing null */ | |
5078 | strncpy(pSMB->FileName, searchName, name_len); | |
5079 | } | |
5080 | ||
5081 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */ ; | |
5082 | pSMB->TotalDataCount = 0; | |
5083 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
5084 | pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ | |
5085 | pSMB->MaxSetupCount = 0; | |
5086 | pSMB->Reserved = 0; | |
5087 | pSMB->Flags = 0; | |
5088 | pSMB->Timeout = 0; | |
5089 | pSMB->Reserved2 = 0; | |
5090 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
5091 | struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); | |
5092 | pSMB->DataCount = 0; | |
5093 | pSMB->DataOffset = 0; | |
5094 | pSMB->SetupCount = 1; | |
5095 | pSMB->Reserved3 = 0; | |
5096 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
5097 | byte_count = params + 1 /* pad */ ; | |
5098 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
5099 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
5100 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_QUERY_ALL_EAS); | |
5101 | pSMB->Reserved4 = 0; | |
5102 | pSMB->hdr.smb_buf_length += byte_count; | |
5103 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
5104 | ||
5105 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
5106 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
5107 | if (rc) { | |
5108 | cFYI(1, ("Send error in Query EA = %d", rc)); | |
5109 | } else { /* decode response */ | |
5110 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
5111 | ||
5112 | /* BB also check enough total bytes returned */ | |
5113 | /* BB we need to improve the validity checking | |
5114 | of these trans2 responses */ | |
5115 | if (rc || (pSMBr->ByteCount < 4)) | |
5116 | rc = -EIO; /* bad smb */ | |
5117 | /* else if (pFindData){ | |
5118 | memcpy((char *) pFindData, | |
5119 | (char *) &pSMBr->hdr.Protocol + | |
5120 | data_offset, kl); | |
5121 | }*/ else { | |
5122 | /* check that length of list is not more than bcc */ | |
5123 | /* check that each entry does not go beyond length | |
5124 | of list */ | |
5125 | /* check that each element of each entry does not | |
5126 | go beyond end of list */ | |
5127 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
5128 | struct fealist * ea_response_data; | |
5129 | rc = -ENODATA; | |
5130 | /* validate_trans2_offsets() */ | |
5131 | /* BB to check if(start of smb + data_offset > &bcc+ bcc)*/ | |
5132 | ea_response_data = (struct fealist *) | |
5133 | (((char *) &pSMBr->hdr.Protocol) + | |
5134 | data_offset); | |
5135 | name_len = le32_to_cpu(ea_response_data->list_len); | |
5136 | cFYI(1,("ea length %d", name_len)); | |
5137 | if(name_len <= 8) { | |
5138 | /* returned EA size zeroed at top of function */ | |
5139 | cFYI(1,("empty EA list returned from server")); | |
5140 | } else { | |
5141 | /* account for ea list len */ | |
5142 | name_len -= 4; | |
5143 | temp_fea = ea_response_data->list; | |
5144 | temp_ptr = (char *)temp_fea; | |
5145 | /* loop through checking if we have a matching | |
5146 | name and then return the associated value */ | |
5147 | while(name_len > 0) { | |
5148 | __u16 value_len; | |
5149 | name_len -= 4; | |
5150 | temp_ptr += 4; | |
5151 | value_len = le16_to_cpu(temp_fea->value_len); | |
5152 | /* BB validate that value_len falls within SMB, | |
5153 | even though maximum for name_len is 255 */ | |
5154 | if(memcmp(temp_fea->name,ea_name, | |
5155 | temp_fea->name_len) == 0) { | |
5156 | /* found a match */ | |
5157 | rc = value_len; | |
5158 | /* account for prefix user. and trailing null */ | |
5159 | if(rc<=(int)buf_size) { | |
5160 | memcpy(ea_value, | |
5161 | temp_fea->name+temp_fea->name_len+1, | |
5162 | rc); | |
5163 | /* ea values, unlike ea names, | |
5164 | are not null terminated */ | |
5165 | } else if(buf_size == 0) { | |
5166 | /* skip copy - calc size only */ | |
5167 | } else { | |
5168 | /* stop before overrun buffer */ | |
5169 | rc = -ERANGE; | |
5170 | } | |
5171 | break; | |
5172 | } | |
5173 | name_len -= temp_fea->name_len; | |
5174 | temp_ptr += temp_fea->name_len; | |
5175 | /* account for trailing null */ | |
5176 | name_len--; | |
5177 | temp_ptr++; | |
5178 | name_len -= value_len; | |
5179 | temp_ptr += value_len; | |
5180 | /* no trailing null to account for in value len */ | |
5181 | /* go on to next EA */ | |
5182 | temp_fea = (struct fea *)temp_ptr; | |
5183 | } | |
5184 | } | |
5185 | } | |
5186 | } | |
5187 | if (pSMB) | |
5188 | cifs_buf_release(pSMB); | |
5189 | if (rc == -EAGAIN) | |
5190 | goto QEARetry; | |
5191 | ||
5192 | return (ssize_t)rc; | |
5193 | } | |
5194 | ||
5195 | int | |
5196 | CIFSSMBSetEA(const int xid, struct cifsTconInfo *tcon, const char *fileName, | |
5197 | const char * ea_name, const void * ea_value, | |
737b758c SF |
5198 | const __u16 ea_value_len, const struct nls_table *nls_codepage, |
5199 | int remap) | |
1da177e4 LT |
5200 | { |
5201 | struct smb_com_transaction2_spi_req *pSMB = NULL; | |
5202 | struct smb_com_transaction2_spi_rsp *pSMBr = NULL; | |
5203 | struct fealist *parm_data; | |
5204 | int name_len; | |
5205 | int rc = 0; | |
5206 | int bytes_returned = 0; | |
5207 | __u16 params, param_offset, byte_count, offset, count; | |
5208 | ||
5209 | cFYI(1, ("In SetEA")); | |
5210 | SetEARetry: | |
5211 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
5212 | (void **) &pSMBr); | |
5213 | if (rc) | |
5214 | return rc; | |
5215 | ||
5216 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
5217 | name_len = | |
b1a45695 | 5218 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 5219 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
5220 | name_len++; /* trailing null */ |
5221 | name_len *= 2; | |
5222 | } else { /* BB improve the check for buffer overruns BB */ | |
5223 | name_len = strnlen(fileName, PATH_MAX); | |
5224 | name_len++; /* trailing null */ | |
5225 | strncpy(pSMB->FileName, fileName, name_len); | |
5226 | } | |
5227 | ||
5228 | params = 6 + name_len; | |
5229 | ||
5230 | /* done calculating parms using name_len of file name, | |
5231 | now use name_len to calculate length of ea name | |
5232 | we are going to create in the inode xattrs */ | |
5233 | if(ea_name == NULL) | |
5234 | name_len = 0; | |
5235 | else | |
5236 | name_len = strnlen(ea_name,255); | |
5237 | ||
5238 | count = sizeof(*parm_data) + ea_value_len + name_len + 1; | |
5239 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
5240 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB size from sess */ | |
5241 | pSMB->MaxSetupCount = 0; | |
5242 | pSMB->Reserved = 0; | |
5243 | pSMB->Flags = 0; | |
5244 | pSMB->Timeout = 0; | |
5245 | pSMB->Reserved2 = 0; | |
5246 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
5247 | InformationLevel) - 4; | |
5248 | offset = param_offset + params; | |
5249 | pSMB->InformationLevel = | |
5250 | cpu_to_le16(SMB_SET_FILE_EA); | |
5251 | ||
5252 | parm_data = | |
5253 | (struct fealist *) (((char *) &pSMB->hdr.Protocol) + | |
5254 | offset); | |
5255 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
5256 | pSMB->DataOffset = cpu_to_le16(offset); | |
5257 | pSMB->SetupCount = 1; | |
5258 | pSMB->Reserved3 = 0; | |
5259 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
5260 | byte_count = 3 /* pad */ + params + count; | |
5261 | pSMB->DataCount = cpu_to_le16(count); | |
5262 | parm_data->list_len = cpu_to_le32(count); | |
5263 | parm_data->list[0].EA_flags = 0; | |
5264 | /* we checked above that name len is less than 255 */ | |
53b3531b | 5265 | parm_data->list[0].name_len = (__u8)name_len; |
1da177e4 LT |
5266 | /* EA names are always ASCII */ |
5267 | if(ea_name) | |
5268 | strncpy(parm_data->list[0].name,ea_name,name_len); | |
5269 | parm_data->list[0].name[name_len] = 0; | |
5270 | parm_data->list[0].value_len = cpu_to_le16(ea_value_len); | |
5271 | /* caller ensures that ea_value_len is less than 64K but | |
5272 | we need to ensure that it fits within the smb */ | |
5273 | ||
5274 | /*BB add length check that it would fit in negotiated SMB buffer size BB */ | |
5275 | /* if(ea_value_len > buffer_size - 512 (enough for header)) */ | |
5276 | if(ea_value_len) | |
5277 | memcpy(parm_data->list[0].name+name_len+1,ea_value,ea_value_len); | |
5278 | ||
5279 | pSMB->TotalDataCount = pSMB->DataCount; | |
5280 | pSMB->ParameterCount = cpu_to_le16(params); | |
5281 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
5282 | pSMB->Reserved4 = 0; | |
5283 | pSMB->hdr.smb_buf_length += byte_count; | |
5284 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
5285 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
5286 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
5287 | if (rc) { | |
5288 | cFYI(1, ("SetPathInfo (EA) returned %d", rc)); | |
5289 | } | |
5290 | ||
5291 | cifs_buf_release(pSMB); | |
5292 | ||
5293 | if (rc == -EAGAIN) | |
5294 | goto SetEARetry; | |
5295 | ||
5296 | return rc; | |
5297 | } | |
5298 | ||
5299 | #endif |