Commit | Line | Data |
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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); | |
8af18971 SF |
161 | rc = CIFSTCon(0, tcon->ses, tcon->treeName, |
162 | tcon, nls_codepage); | |
1da177e4 | 163 | up(&tcon->ses->sesSem); |
8af18971 SF |
164 | /* tell server which Unix caps we support */ |
165 | if (tcon->ses->capabilities & CAP_UNIX) | |
166 | reset_cifs_unix_caps(0 /* no xid */, | |
167 | tcon, | |
168 | NULL /* we do not know sb */, | |
169 | NULL /* no vol info */); | |
3e84469d SF |
170 | /* BB FIXME add code to check if wsize needs |
171 | update due to negotiated smb buffer size | |
172 | shrinking */ | |
1da177e4 LT |
173 | if(rc == 0) |
174 | atomic_inc(&tconInfoReconnectCount); | |
175 | ||
176 | cFYI(1, ("reconnect tcon rc = %d", rc)); | |
177 | /* Removed call to reopen open files here - | |
09d1db5c SF |
178 | it is safer (and faster) to reopen files |
179 | one at a time as needed in read and write */ | |
1da177e4 LT |
180 | |
181 | /* Check if handle based operation so we | |
09d1db5c SF |
182 | know whether we can continue or not without |
183 | returning to caller to reset file handle */ | |
1da177e4 LT |
184 | switch(smb_command) { |
185 | case SMB_COM_READ_ANDX: | |
186 | case SMB_COM_WRITE_ANDX: | |
187 | case SMB_COM_CLOSE: | |
188 | case SMB_COM_FIND_CLOSE2: | |
189 | case SMB_COM_LOCKING_ANDX: { | |
190 | unload_nls(nls_codepage); | |
191 | return -EAGAIN; | |
192 | } | |
193 | } | |
194 | } else { | |
195 | up(&tcon->ses->sesSem); | |
196 | } | |
197 | unload_nls(nls_codepage); | |
198 | ||
199 | } else { | |
200 | return -EIO; | |
201 | } | |
202 | } | |
203 | if(rc) | |
204 | return rc; | |
205 | ||
206 | *request_buf = cifs_small_buf_get(); | |
207 | if (*request_buf == NULL) { | |
208 | /* BB should we add a retry in here if not a writepage? */ | |
209 | return -ENOMEM; | |
210 | } | |
211 | ||
212 | header_assemble((struct smb_hdr *) *request_buf, smb_command, tcon,wct); | |
213 | ||
a4544347 SF |
214 | if(tcon != NULL) |
215 | cifs_stats_inc(&tcon->num_smbs_sent); | |
216 | ||
1da177e4 | 217 | return rc; |
5815449d SF |
218 | } |
219 | ||
12b3b8ff | 220 | int |
5815449d SF |
221 | small_smb_init_no_tc(const int smb_command, const int wct, |
222 | struct cifsSesInfo *ses, void **request_buf) | |
12b3b8ff SF |
223 | { |
224 | int rc; | |
225 | struct smb_hdr * buffer; | |
226 | ||
5815449d | 227 | rc = small_smb_init(smb_command, wct, NULL, request_buf); |
12b3b8ff SF |
228 | if(rc) |
229 | return rc; | |
230 | ||
04fdabe1 | 231 | buffer = (struct smb_hdr *)*request_buf; |
12b3b8ff SF |
232 | buffer->Mid = GetNextMid(ses->server); |
233 | if (ses->capabilities & CAP_UNICODE) | |
234 | buffer->Flags2 |= SMBFLG2_UNICODE; | |
04fdabe1 | 235 | if (ses->capabilities & CAP_STATUS32) |
12b3b8ff SF |
236 | buffer->Flags2 |= SMBFLG2_ERR_STATUS; |
237 | ||
238 | /* uid, tid can stay at zero as set in header assemble */ | |
239 | ||
240 | /* BB add support for turning on the signing when | |
241 | this function is used after 1st of session setup requests */ | |
242 | ||
243 | return rc; | |
244 | } | |
1da177e4 LT |
245 | |
246 | /* If the return code is zero, this function must fill in request_buf pointer */ | |
247 | static int | |
248 | smb_init(int smb_command, int wct, struct cifsTconInfo *tcon, | |
249 | void **request_buf /* returned */ , | |
250 | void **response_buf /* returned */ ) | |
251 | { | |
252 | int rc = 0; | |
253 | ||
254 | /* SMBs NegProt, SessSetup, uLogoff do not have tcon yet so | |
255 | check for tcp and smb session status done differently | |
256 | for those three - in the calling routine */ | |
257 | if(tcon) { | |
6ab16d24 SF |
258 | if(tcon->tidStatus == CifsExiting) { |
259 | /* only tree disconnect, open, and write, | |
260 | (and ulogoff which does not have tcon) | |
261 | are allowed as we start force umount */ | |
262 | if((smb_command != SMB_COM_WRITE_ANDX) && | |
263 | (smb_command != SMB_COM_OPEN_ANDX) && | |
264 | (smb_command != SMB_COM_TREE_DISCONNECT)) { | |
265 | cFYI(1,("can not send cmd %d while umounting", | |
266 | smb_command)); | |
267 | return -ENODEV; | |
268 | } | |
269 | } | |
270 | ||
31ca3bc3 SF |
271 | if((tcon->ses) && (tcon->ses->status != CifsExiting) && |
272 | (tcon->ses->server)){ | |
1da177e4 | 273 | struct nls_table *nls_codepage; |
09d1db5c SF |
274 | /* Give Demultiplex thread up to 10 seconds to |
275 | reconnect, should be greater than cifs socket | |
276 | timeout which is 7 seconds */ | |
1da177e4 LT |
277 | while(tcon->ses->server->tcpStatus == CifsNeedReconnect) { |
278 | wait_event_interruptible_timeout(tcon->ses->server->response_q, | |
279 | (tcon->ses->server->tcpStatus == CifsGood), 10 * HZ); | |
09d1db5c SF |
280 | if(tcon->ses->server->tcpStatus == |
281 | CifsNeedReconnect) { | |
1da177e4 LT |
282 | /* on "soft" mounts we wait once */ |
283 | if((tcon->retry == FALSE) || | |
284 | (tcon->ses->status == CifsExiting)) { | |
285 | cFYI(1,("gave up waiting on reconnect in smb_init")); | |
286 | return -EHOSTDOWN; | |
09d1db5c SF |
287 | } /* else "hard" mount - keep retrying |
288 | until process is killed or server | |
289 | comes on-line */ | |
1da177e4 LT |
290 | } else /* TCP session is reestablished now */ |
291 | break; | |
292 | ||
293 | } | |
294 | ||
295 | nls_codepage = load_nls_default(); | |
296 | /* need to prevent multiple threads trying to | |
297 | simultaneously reconnect the same SMB session */ | |
298 | down(&tcon->ses->sesSem); | |
299 | if(tcon->ses->status == CifsNeedReconnect) | |
09d1db5c SF |
300 | rc = cifs_setup_session(0, tcon->ses, |
301 | nls_codepage); | |
1da177e4 LT |
302 | if(!rc && (tcon->tidStatus == CifsNeedReconnect)) { |
303 | mark_open_files_invalid(tcon); | |
09d1db5c SF |
304 | rc = CIFSTCon(0, tcon->ses, tcon->treeName, |
305 | tcon, nls_codepage); | |
1da177e4 | 306 | up(&tcon->ses->sesSem); |
8af18971 SF |
307 | /* tell server which Unix caps we support */ |
308 | if (tcon->ses->capabilities & CAP_UNIX) | |
309 | reset_cifs_unix_caps(0 /* no xid */, | |
310 | tcon, | |
311 | NULL /* do not know sb */, | |
312 | NULL /* no vol info */); | |
3e84469d SF |
313 | /* BB FIXME add code to check if wsize needs |
314 | update due to negotiated smb buffer size | |
315 | shrinking */ | |
1da177e4 LT |
316 | if(rc == 0) |
317 | atomic_inc(&tconInfoReconnectCount); | |
318 | ||
319 | cFYI(1, ("reconnect tcon rc = %d", rc)); | |
320 | /* Removed call to reopen open files here - | |
09d1db5c SF |
321 | it is safer (and faster) to reopen files |
322 | one at a time as needed in read and write */ | |
1da177e4 LT |
323 | |
324 | /* Check if handle based operation so we | |
09d1db5c SF |
325 | know whether we can continue or not without |
326 | returning to caller to reset file handle */ | |
1da177e4 LT |
327 | switch(smb_command) { |
328 | case SMB_COM_READ_ANDX: | |
329 | case SMB_COM_WRITE_ANDX: | |
330 | case SMB_COM_CLOSE: | |
331 | case SMB_COM_FIND_CLOSE2: | |
332 | case SMB_COM_LOCKING_ANDX: { | |
333 | unload_nls(nls_codepage); | |
334 | return -EAGAIN; | |
335 | } | |
336 | } | |
337 | } else { | |
338 | up(&tcon->ses->sesSem); | |
339 | } | |
340 | unload_nls(nls_codepage); | |
341 | ||
342 | } else { | |
343 | return -EIO; | |
344 | } | |
345 | } | |
346 | if(rc) | |
347 | return rc; | |
348 | ||
349 | *request_buf = cifs_buf_get(); | |
350 | if (*request_buf == NULL) { | |
351 | /* BB should we add a retry in here if not a writepage? */ | |
352 | return -ENOMEM; | |
353 | } | |
354 | /* Although the original thought was we needed the response buf for */ | |
355 | /* potential retries of smb operations it turns out we can determine */ | |
356 | /* from the mid flags when the request buffer can be resent without */ | |
357 | /* having to use a second distinct buffer for the response */ | |
3979877e SF |
358 | if(response_buf) |
359 | *response_buf = *request_buf; | |
1da177e4 LT |
360 | |
361 | header_assemble((struct smb_hdr *) *request_buf, smb_command, tcon, | |
362 | wct /*wct */ ); | |
363 | ||
a4544347 SF |
364 | if(tcon != NULL) |
365 | cifs_stats_inc(&tcon->num_smbs_sent); | |
366 | ||
1da177e4 LT |
367 | return rc; |
368 | } | |
369 | ||
370 | static int validate_t2(struct smb_t2_rsp * pSMB) | |
371 | { | |
372 | int rc = -EINVAL; | |
373 | int total_size; | |
374 | char * pBCC; | |
375 | ||
376 | /* check for plausible wct, bcc and t2 data and parm sizes */ | |
377 | /* check for parm and data offset going beyond end of smb */ | |
378 | if(pSMB->hdr.WordCount >= 10) { | |
379 | if((le16_to_cpu(pSMB->t2_rsp.ParameterOffset) <= 1024) && | |
380 | (le16_to_cpu(pSMB->t2_rsp.DataOffset) <= 1024)) { | |
381 | /* check that bcc is at least as big as parms + data */ | |
382 | /* check that bcc is less than negotiated smb buffer */ | |
383 | total_size = le16_to_cpu(pSMB->t2_rsp.ParameterCount); | |
384 | if(total_size < 512) { | |
385 | total_size+=le16_to_cpu(pSMB->t2_rsp.DataCount); | |
386 | /* BCC le converted in SendReceive */ | |
09d1db5c SF |
387 | pBCC = (pSMB->hdr.WordCount * 2) + |
388 | sizeof(struct smb_hdr) + | |
1da177e4 LT |
389 | (char *)pSMB; |
390 | if((total_size <= (*(u16 *)pBCC)) && | |
391 | (total_size < | |
392 | CIFSMaxBufSize+MAX_CIFS_HDR_SIZE)) { | |
393 | return 0; | |
394 | } | |
395 | ||
396 | } | |
397 | } | |
398 | } | |
399 | cifs_dump_mem("Invalid transact2 SMB: ",(char *)pSMB, | |
400 | sizeof(struct smb_t2_rsp) + 16); | |
401 | return rc; | |
402 | } | |
403 | int | |
404 | CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) | |
405 | { | |
406 | NEGOTIATE_REQ *pSMB; | |
407 | NEGOTIATE_RSP *pSMBr; | |
408 | int rc = 0; | |
409 | int bytes_returned; | |
3979877e | 410 | int i; |
1da177e4 LT |
411 | struct TCP_Server_Info * server; |
412 | u16 count; | |
750d1151 | 413 | unsigned int secFlags; |
733f99ac | 414 | u16 dialect; |
1da177e4 LT |
415 | |
416 | if(ses->server) | |
417 | server = ses->server; | |
418 | else { | |
419 | rc = -EIO; | |
420 | return rc; | |
421 | } | |
422 | rc = smb_init(SMB_COM_NEGOTIATE, 0, NULL /* no tcon yet */ , | |
423 | (void **) &pSMB, (void **) &pSMBr); | |
424 | if (rc) | |
425 | return rc; | |
750d1151 SF |
426 | |
427 | /* if any of auth flags (ie not sign or seal) are overriden use them */ | |
428 | if(ses->overrideSecFlg & (~(CIFSSEC_MUST_SIGN | CIFSSEC_MUST_SEAL))) | |
429 | secFlags = ses->overrideSecFlg; | |
430 | else /* if override flags set only sign/seal OR them with global auth */ | |
431 | secFlags = extended_security | ses->overrideSecFlg; | |
432 | ||
f40c5628 SF |
433 | cFYI(1,("secFlags 0x%x",secFlags)); |
434 | ||
1982c344 | 435 | pSMB->hdr.Mid = GetNextMid(server); |
1da177e4 | 436 | pSMB->hdr.Flags2 |= SMBFLG2_UNICODE; |
750d1151 | 437 | if((secFlags & CIFSSEC_MUST_KRB5) == CIFSSEC_MUST_KRB5) |
254e55ed | 438 | pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC; |
3979877e SF |
439 | |
440 | count = 0; | |
441 | for(i=0;i<CIFS_NUM_PROT;i++) { | |
442 | strncpy(pSMB->DialectsArray+count, protocols[i].name, 16); | |
443 | count += strlen(protocols[i].name) + 1; | |
444 | /* null at end of source and target buffers anyway */ | |
445 | } | |
1da177e4 LT |
446 | pSMB->hdr.smb_buf_length += count; |
447 | pSMB->ByteCount = cpu_to_le16(count); | |
448 | ||
449 | rc = SendReceive(xid, ses, (struct smb_hdr *) pSMB, | |
450 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
254e55ed SF |
451 | if (rc != 0) |
452 | goto neg_err_exit; | |
453 | ||
733f99ac AV |
454 | dialect = le16_to_cpu(pSMBr->DialectIndex); |
455 | cFYI(1,("Dialect: %d", dialect)); | |
254e55ed | 456 | /* Check wct = 1 error case */ |
733f99ac | 457 | if((pSMBr->hdr.WordCount < 13) || (dialect == BAD_PROT)) { |
254e55ed SF |
458 | /* core returns wct = 1, but we do not ask for core - otherwise |
459 | small wct just comes when dialect index is -1 indicating we | |
460 | could not negotiate a common dialect */ | |
461 | rc = -EOPNOTSUPP; | |
462 | goto neg_err_exit; | |
463 | #ifdef CONFIG_CIFS_WEAK_PW_HASH | |
464 | } else if((pSMBr->hdr.WordCount == 13) | |
733f99ac AV |
465 | && ((dialect == LANMAN_PROT) |
466 | || (dialect == LANMAN2_PROT))) { | |
b815f1e5 | 467 | __s16 tmp; |
254e55ed SF |
468 | struct lanman_neg_rsp * rsp = (struct lanman_neg_rsp *)pSMBr; |
469 | ||
750d1151 SF |
470 | if((secFlags & CIFSSEC_MAY_LANMAN) || |
471 | (secFlags & CIFSSEC_MAY_PLNTXT)) | |
254e55ed SF |
472 | server->secType = LANMAN; |
473 | else { | |
474 | cERROR(1, ("mount failed weak security disabled" | |
475 | " in /proc/fs/cifs/SecurityFlags")); | |
3979877e SF |
476 | rc = -EOPNOTSUPP; |
477 | goto neg_err_exit; | |
254e55ed SF |
478 | } |
479 | server->secMode = (__u8)le16_to_cpu(rsp->SecurityMode); | |
480 | server->maxReq = le16_to_cpu(rsp->MaxMpxCount); | |
481 | server->maxBuf = min((__u32)le16_to_cpu(rsp->MaxBufSize), | |
3979877e | 482 | (__u32)CIFSMaxBufSize + MAX_CIFS_HDR_SIZE); |
254e55ed SF |
483 | GETU32(server->sessid) = le32_to_cpu(rsp->SessionKey); |
484 | /* even though we do not use raw we might as well set this | |
485 | accurately, in case we ever find a need for it */ | |
486 | if((le16_to_cpu(rsp->RawMode) & RAW_ENABLE) == RAW_ENABLE) { | |
487 | server->maxRw = 0xFF00; | |
488 | server->capabilities = CAP_MPX_MODE | CAP_RAW_MODE; | |
489 | } else { | |
490 | server->maxRw = 0;/* we do not need to use raw anyway */ | |
491 | server->capabilities = CAP_MPX_MODE; | |
492 | } | |
b815f1e5 | 493 | tmp = (__s16)le16_to_cpu(rsp->ServerTimeZone); |
1a70d652 | 494 | if (tmp == -1) { |
25ee4a98 SF |
495 | /* OS/2 often does not set timezone therefore |
496 | * we must use server time to calc time zone. | |
b815f1e5 SF |
497 | * Could deviate slightly from the right zone. |
498 | * Smallest defined timezone difference is 15 minutes | |
499 | * (i.e. Nepal). Rounding up/down is done to match | |
500 | * this requirement. | |
25ee4a98 | 501 | */ |
b815f1e5 | 502 | int val, seconds, remain, result; |
25ee4a98 SF |
503 | struct timespec ts, utc; |
504 | utc = CURRENT_TIME; | |
505 | ts = cnvrtDosUnixTm(le16_to_cpu(rsp->SrvTime.Date), | |
506 | le16_to_cpu(rsp->SrvTime.Time)); | |
507 | cFYI(1,("SrvTime: %d sec since 1970 (utc: %d) diff: %d", | |
508 | (int)ts.tv_sec, (int)utc.tv_sec, | |
509 | (int)(utc.tv_sec - ts.tv_sec))); | |
b815f1e5 SF |
510 | val = (int)(utc.tv_sec - ts.tv_sec); |
511 | seconds = val < 0 ? -val : val; | |
947a5067 | 512 | result = (seconds / MIN_TZ_ADJ) * MIN_TZ_ADJ; |
b815f1e5 SF |
513 | remain = seconds % MIN_TZ_ADJ; |
514 | if(remain >= (MIN_TZ_ADJ / 2)) | |
515 | result += MIN_TZ_ADJ; | |
516 | if(val < 0) | |
517 | result = - result; | |
518 | server->timeAdj = result; | |
25ee4a98 | 519 | } else { |
b815f1e5 SF |
520 | server->timeAdj = (int)tmp; |
521 | server->timeAdj *= 60; /* also in seconds */ | |
25ee4a98 | 522 | } |
175ec9e1 | 523 | cFYI(1,("server->timeAdj: %d seconds", server->timeAdj)); |
25ee4a98 | 524 | |
3979877e | 525 | |
254e55ed SF |
526 | /* BB get server time for time conversions and add |
527 | code to use it and timezone since this is not UTC */ | |
3979877e | 528 | |
25ee4a98 SF |
529 | if (rsp->EncryptionKeyLength == |
530 | cpu_to_le16(CIFS_CRYPTO_KEY_SIZE)) { | |
254e55ed SF |
531 | memcpy(server->cryptKey, rsp->EncryptionKey, |
532 | CIFS_CRYPTO_KEY_SIZE); | |
533 | } else if (server->secMode & SECMODE_PW_ENCRYPT) { | |
534 | rc = -EIO; /* need cryptkey unless plain text */ | |
535 | goto neg_err_exit; | |
536 | } | |
3979877e | 537 | |
254e55ed SF |
538 | cFYI(1,("LANMAN negotiated")); |
539 | /* we will not end up setting signing flags - as no signing | |
540 | was in LANMAN and server did not return the flags on */ | |
541 | goto signing_check; | |
7c7b25bc | 542 | #else /* weak security disabled */ |
254e55ed SF |
543 | } else if(pSMBr->hdr.WordCount == 13) { |
544 | cERROR(1,("mount failed, cifs module not built " | |
545 | "with CIFS_WEAK_PW_HASH support")); | |
7c7b25bc SF |
546 | rc = -EOPNOTSUPP; |
547 | #endif /* WEAK_PW_HASH */ | |
254e55ed SF |
548 | goto neg_err_exit; |
549 | } else if(pSMBr->hdr.WordCount != 17) { | |
550 | /* unknown wct */ | |
551 | rc = -EOPNOTSUPP; | |
552 | goto neg_err_exit; | |
553 | } | |
554 | /* else wct == 17 NTLM */ | |
555 | server->secMode = pSMBr->SecurityMode; | |
556 | if((server->secMode & SECMODE_USER) == 0) | |
557 | cFYI(1,("share mode security")); | |
bdc4bf6e | 558 | |
254e55ed | 559 | if((server->secMode & SECMODE_PW_ENCRYPT) == 0) |
bdc4bf6e | 560 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
750d1151 | 561 | if ((secFlags & CIFSSEC_MAY_PLNTXT) == 0) |
bdc4bf6e | 562 | #endif /* CIFS_WEAK_PW_HASH */ |
254e55ed SF |
563 | cERROR(1,("Server requests plain text password" |
564 | " but client support disabled")); | |
9312f675 | 565 | |
f40c5628 | 566 | if((secFlags & CIFSSEC_MUST_NTLMV2) == CIFSSEC_MUST_NTLMV2) |
254e55ed | 567 | server->secType = NTLMv2; |
f40c5628 | 568 | else if(secFlags & CIFSSEC_MAY_NTLM) |
254e55ed | 569 | server->secType = NTLM; |
f40c5628 SF |
570 | else if(secFlags & CIFSSEC_MAY_NTLMV2) |
571 | server->secType = NTLMv2; | |
572 | /* else krb5 ... any others ... */ | |
254e55ed SF |
573 | |
574 | /* one byte, so no need to convert this or EncryptionKeyLen from | |
575 | little endian */ | |
576 | server->maxReq = le16_to_cpu(pSMBr->MaxMpxCount); | |
577 | /* probably no need to store and check maxvcs */ | |
578 | server->maxBuf = min(le32_to_cpu(pSMBr->MaxBufferSize), | |
1da177e4 | 579 | (__u32) CIFSMaxBufSize + MAX_CIFS_HDR_SIZE); |
254e55ed SF |
580 | server->maxRw = le32_to_cpu(pSMBr->MaxRawSize); |
581 | cFYI(0, ("Max buf = %d", ses->server->maxBuf)); | |
582 | GETU32(ses->server->sessid) = le32_to_cpu(pSMBr->SessionKey); | |
583 | server->capabilities = le32_to_cpu(pSMBr->Capabilities); | |
b815f1e5 SF |
584 | server->timeAdj = (int)(__s16)le16_to_cpu(pSMBr->ServerTimeZone); |
585 | server->timeAdj *= 60; | |
254e55ed SF |
586 | if (pSMBr->EncryptionKeyLength == CIFS_CRYPTO_KEY_SIZE) { |
587 | memcpy(server->cryptKey, pSMBr->u.EncryptionKey, | |
588 | CIFS_CRYPTO_KEY_SIZE); | |
589 | } else if ((pSMBr->hdr.Flags2 & SMBFLG2_EXT_SEC) | |
590 | && (pSMBr->EncryptionKeyLength == 0)) { | |
591 | /* decode security blob */ | |
592 | } else if (server->secMode & SECMODE_PW_ENCRYPT) { | |
593 | rc = -EIO; /* no crypt key only if plain text pwd */ | |
594 | goto neg_err_exit; | |
595 | } | |
1da177e4 | 596 | |
254e55ed SF |
597 | /* BB might be helpful to save off the domain of server here */ |
598 | ||
599 | if ((pSMBr->hdr.Flags2 & SMBFLG2_EXT_SEC) && | |
600 | (server->capabilities & CAP_EXTENDED_SECURITY)) { | |
601 | count = pSMBr->ByteCount; | |
602 | if (count < 16) | |
603 | rc = -EIO; | |
604 | else if (count == 16) { | |
605 | server->secType = RawNTLMSSP; | |
606 | if (server->socketUseCount.counter > 1) { | |
607 | if (memcmp(server->server_GUID, | |
608 | pSMBr->u.extended_response. | |
609 | GUID, 16) != 0) { | |
610 | cFYI(1, ("server UID changed")); | |
1da177e4 | 611 | memcpy(server->server_GUID, |
254e55ed SF |
612 | pSMBr->u.extended_response.GUID, |
613 | 16); | |
1da177e4 | 614 | } |
254e55ed SF |
615 | } else |
616 | memcpy(server->server_GUID, | |
617 | pSMBr->u.extended_response.GUID, 16); | |
618 | } else { | |
619 | rc = decode_negTokenInit(pSMBr->u.extended_response. | |
620 | SecurityBlob, | |
621 | count - 16, | |
622 | &server->secType); | |
623 | if(rc == 1) { | |
624 | /* BB Need to fill struct for sessetup here */ | |
625 | rc = -EOPNOTSUPP; | |
626 | } else { | |
627 | rc = -EINVAL; | |
1da177e4 | 628 | } |
1da177e4 | 629 | } |
254e55ed SF |
630 | } else |
631 | server->capabilities &= ~CAP_EXTENDED_SECURITY; | |
632 | ||
6344a423 | 633 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
254e55ed | 634 | signing_check: |
6344a423 | 635 | #endif |
254e55ed SF |
636 | if(sign_CIFS_PDUs == FALSE) { |
637 | if(server->secMode & SECMODE_SIGN_REQUIRED) | |
638 | cERROR(1,("Server requires " | |
639 | "/proc/fs/cifs/PacketSigningEnabled to be on")); | |
640 | server->secMode &= | |
641 | ~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED); | |
642 | } else if(sign_CIFS_PDUs == 1) { | |
643 | if((server->secMode & SECMODE_SIGN_REQUIRED) == 0) | |
644 | server->secMode &= | |
645 | ~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED); | |
646 | } else if(sign_CIFS_PDUs == 2) { | |
647 | if((server->secMode & | |
648 | (SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED)) == 0) { | |
649 | cERROR(1,("signing required but server lacks support")); | |
650 | } | |
1da177e4 | 651 | } |
3979877e | 652 | neg_err_exit: |
4a6d87f1 | 653 | cifs_buf_release(pSMB); |
254e55ed SF |
654 | |
655 | cFYI(1,("negprot rc %d",rc)); | |
1da177e4 LT |
656 | return rc; |
657 | } | |
658 | ||
659 | int | |
660 | CIFSSMBTDis(const int xid, struct cifsTconInfo *tcon) | |
661 | { | |
662 | struct smb_hdr *smb_buffer; | |
663 | struct smb_hdr *smb_buffer_response; /* BB removeme BB */ | |
664 | int rc = 0; | |
665 | int length; | |
666 | ||
667 | cFYI(1, ("In tree disconnect")); | |
668 | /* | |
669 | * If last user of the connection and | |
670 | * connection alive - disconnect it | |
671 | * If this is the last connection on the server session disconnect it | |
672 | * (and inside session disconnect we should check if tcp socket needs | |
673 | * to be freed and kernel thread woken up). | |
674 | */ | |
675 | if (tcon) | |
676 | down(&tcon->tconSem); | |
677 | else | |
678 | return -EIO; | |
679 | ||
680 | atomic_dec(&tcon->useCount); | |
681 | if (atomic_read(&tcon->useCount) > 0) { | |
682 | up(&tcon->tconSem); | |
683 | return -EBUSY; | |
684 | } | |
685 | ||
686 | /* No need to return error on this operation if tid invalidated and | |
687 | closed on server already e.g. due to tcp session crashing */ | |
688 | if(tcon->tidStatus == CifsNeedReconnect) { | |
689 | up(&tcon->tconSem); | |
690 | return 0; | |
691 | } | |
692 | ||
693 | if((tcon->ses == NULL) || (tcon->ses->server == NULL)) { | |
694 | up(&tcon->tconSem); | |
695 | return -EIO; | |
696 | } | |
09d1db5c SF |
697 | rc = small_smb_init(SMB_COM_TREE_DISCONNECT, 0, tcon, |
698 | (void **)&smb_buffer); | |
1da177e4 LT |
699 | if (rc) { |
700 | up(&tcon->tconSem); | |
701 | return rc; | |
702 | } else { | |
703 | smb_buffer_response = smb_buffer; /* BB removeme BB */ | |
cd63499c | 704 | } |
1da177e4 LT |
705 | rc = SendReceive(xid, tcon->ses, smb_buffer, smb_buffer_response, |
706 | &length, 0); | |
707 | if (rc) | |
966ca923 | 708 | cFYI(1, ("Tree disconnect failed %d", rc)); |
1da177e4 LT |
709 | |
710 | if (smb_buffer) | |
711 | cifs_small_buf_release(smb_buffer); | |
712 | up(&tcon->tconSem); | |
713 | ||
714 | /* No need to return error on this operation if tid invalidated and | |
715 | closed on server already e.g. due to tcp session crashing */ | |
716 | if (rc == -EAGAIN) | |
717 | rc = 0; | |
718 | ||
719 | return rc; | |
720 | } | |
721 | ||
722 | int | |
723 | CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses) | |
724 | { | |
725 | struct smb_hdr *smb_buffer_response; | |
726 | LOGOFF_ANDX_REQ *pSMB; | |
727 | int rc = 0; | |
728 | int length; | |
729 | ||
730 | cFYI(1, ("In SMBLogoff for session disconnect")); | |
731 | if (ses) | |
732 | down(&ses->sesSem); | |
733 | else | |
734 | return -EIO; | |
735 | ||
736 | atomic_dec(&ses->inUse); | |
737 | if (atomic_read(&ses->inUse) > 0) { | |
738 | up(&ses->sesSem); | |
739 | return -EBUSY; | |
740 | } | |
741 | rc = small_smb_init(SMB_COM_LOGOFF_ANDX, 2, NULL, (void **)&pSMB); | |
742 | if (rc) { | |
743 | up(&ses->sesSem); | |
744 | return rc; | |
745 | } | |
746 | ||
747 | smb_buffer_response = (struct smb_hdr *)pSMB; /* BB removeme BB */ | |
748 | ||
749 | if(ses->server) { | |
1982c344 SF |
750 | pSMB->hdr.Mid = GetNextMid(ses->server); |
751 | ||
1da177e4 LT |
752 | if(ses->server->secMode & |
753 | (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) | |
754 | pSMB->hdr.Flags2 |= SMBFLG2_SECURITY_SIGNATURE; | |
755 | } | |
756 | ||
757 | pSMB->hdr.Uid = ses->Suid; | |
758 | ||
759 | pSMB->AndXCommand = 0xFF; | |
760 | rc = SendReceive(xid, ses, (struct smb_hdr *) pSMB, | |
761 | smb_buffer_response, &length, 0); | |
762 | if (ses->server) { | |
763 | atomic_dec(&ses->server->socketUseCount); | |
764 | if (atomic_read(&ses->server->socketUseCount) == 0) { | |
765 | spin_lock(&GlobalMid_Lock); | |
766 | ses->server->tcpStatus = CifsExiting; | |
767 | spin_unlock(&GlobalMid_Lock); | |
768 | rc = -ESHUTDOWN; | |
769 | } | |
770 | } | |
a59c6586 | 771 | up(&ses->sesSem); |
4a6d87f1 | 772 | cifs_small_buf_release(pSMB); |
1da177e4 LT |
773 | |
774 | /* if session dead then we do not need to do ulogoff, | |
775 | since server closed smb session, no sense reporting | |
776 | error */ | |
777 | if (rc == -EAGAIN) | |
778 | rc = 0; | |
779 | return rc; | |
780 | } | |
781 | ||
782 | int | |
737b758c SF |
783 | CIFSSMBDelFile(const int xid, struct cifsTconInfo *tcon, const char *fileName, |
784 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
785 | { |
786 | DELETE_FILE_REQ *pSMB = NULL; | |
787 | DELETE_FILE_RSP *pSMBr = NULL; | |
788 | int rc = 0; | |
789 | int bytes_returned; | |
790 | int name_len; | |
791 | ||
792 | DelFileRetry: | |
793 | rc = smb_init(SMB_COM_DELETE, 1, tcon, (void **) &pSMB, | |
794 | (void **) &pSMBr); | |
795 | if (rc) | |
796 | return rc; | |
797 | ||
798 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
799 | name_len = | |
b1a45695 | 800 | cifsConvertToUCS((__le16 *) pSMB->fileName, fileName, |
737b758c | 801 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
802 | name_len++; /* trailing null */ |
803 | name_len *= 2; | |
09d1db5c | 804 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
805 | name_len = strnlen(fileName, PATH_MAX); |
806 | name_len++; /* trailing null */ | |
807 | strncpy(pSMB->fileName, fileName, name_len); | |
808 | } | |
809 | pSMB->SearchAttributes = | |
810 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM); | |
811 | pSMB->BufferFormat = 0x04; | |
812 | pSMB->hdr.smb_buf_length += name_len + 1; | |
813 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
814 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
815 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 816 | cifs_stats_inc(&tcon->num_deletes); |
1da177e4 LT |
817 | if (rc) { |
818 | cFYI(1, ("Error in RMFile = %d", rc)); | |
819 | } | |
1da177e4 LT |
820 | |
821 | cifs_buf_release(pSMB); | |
822 | if (rc == -EAGAIN) | |
823 | goto DelFileRetry; | |
824 | ||
825 | return rc; | |
826 | } | |
827 | ||
828 | int | |
737b758c SF |
829 | CIFSSMBRmDir(const int xid, struct cifsTconInfo *tcon, const char *dirName, |
830 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
831 | { |
832 | DELETE_DIRECTORY_REQ *pSMB = NULL; | |
833 | DELETE_DIRECTORY_RSP *pSMBr = NULL; | |
834 | int rc = 0; | |
835 | int bytes_returned; | |
836 | int name_len; | |
837 | ||
838 | cFYI(1, ("In CIFSSMBRmDir")); | |
839 | RmDirRetry: | |
840 | rc = smb_init(SMB_COM_DELETE_DIRECTORY, 0, tcon, (void **) &pSMB, | |
841 | (void **) &pSMBr); | |
842 | if (rc) | |
843 | return rc; | |
844 | ||
845 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
737b758c SF |
846 | name_len = cifsConvertToUCS((__le16 *) pSMB->DirName, dirName, |
847 | PATH_MAX, nls_codepage, remap); | |
1da177e4 LT |
848 | name_len++; /* trailing null */ |
849 | name_len *= 2; | |
09d1db5c | 850 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
851 | name_len = strnlen(dirName, PATH_MAX); |
852 | name_len++; /* trailing null */ | |
853 | strncpy(pSMB->DirName, dirName, name_len); | |
854 | } | |
855 | ||
856 | pSMB->BufferFormat = 0x04; | |
857 | pSMB->hdr.smb_buf_length += name_len + 1; | |
858 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
859 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
860 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 861 | cifs_stats_inc(&tcon->num_rmdirs); |
1da177e4 LT |
862 | if (rc) { |
863 | cFYI(1, ("Error in RMDir = %d", rc)); | |
864 | } | |
1da177e4 LT |
865 | |
866 | cifs_buf_release(pSMB); | |
867 | if (rc == -EAGAIN) | |
868 | goto RmDirRetry; | |
869 | return rc; | |
870 | } | |
871 | ||
872 | int | |
873 | CIFSSMBMkDir(const int xid, struct cifsTconInfo *tcon, | |
737b758c | 874 | const char *name, const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
875 | { |
876 | int rc = 0; | |
877 | CREATE_DIRECTORY_REQ *pSMB = NULL; | |
878 | CREATE_DIRECTORY_RSP *pSMBr = NULL; | |
879 | int bytes_returned; | |
880 | int name_len; | |
881 | ||
882 | cFYI(1, ("In CIFSSMBMkDir")); | |
883 | MkDirRetry: | |
884 | rc = smb_init(SMB_COM_CREATE_DIRECTORY, 0, tcon, (void **) &pSMB, | |
885 | (void **) &pSMBr); | |
886 | if (rc) | |
887 | return rc; | |
888 | ||
889 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
b1a45695 | 890 | name_len = cifsConvertToUCS((__le16 *) pSMB->DirName, name, |
737b758c | 891 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
892 | name_len++; /* trailing null */ |
893 | name_len *= 2; | |
09d1db5c | 894 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
895 | name_len = strnlen(name, PATH_MAX); |
896 | name_len++; /* trailing null */ | |
897 | strncpy(pSMB->DirName, name, name_len); | |
898 | } | |
899 | ||
900 | pSMB->BufferFormat = 0x04; | |
901 | pSMB->hdr.smb_buf_length += name_len + 1; | |
902 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
903 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
904 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 905 | cifs_stats_inc(&tcon->num_mkdirs); |
1da177e4 LT |
906 | if (rc) { |
907 | cFYI(1, ("Error in Mkdir = %d", rc)); | |
908 | } | |
a5a2b489 | 909 | |
1da177e4 LT |
910 | cifs_buf_release(pSMB); |
911 | if (rc == -EAGAIN) | |
912 | goto MkDirRetry; | |
913 | return rc; | |
914 | } | |
915 | ||
a9d02ad4 SF |
916 | static __u16 convert_disposition(int disposition) |
917 | { | |
918 | __u16 ofun = 0; | |
919 | ||
920 | switch (disposition) { | |
921 | case FILE_SUPERSEDE: | |
922 | ofun = SMBOPEN_OCREATE | SMBOPEN_OTRUNC; | |
923 | break; | |
924 | case FILE_OPEN: | |
925 | ofun = SMBOPEN_OAPPEND; | |
926 | break; | |
927 | case FILE_CREATE: | |
928 | ofun = SMBOPEN_OCREATE; | |
929 | break; | |
930 | case FILE_OPEN_IF: | |
931 | ofun = SMBOPEN_OCREATE | SMBOPEN_OAPPEND; | |
932 | break; | |
933 | case FILE_OVERWRITE: | |
934 | ofun = SMBOPEN_OTRUNC; | |
935 | break; | |
936 | case FILE_OVERWRITE_IF: | |
937 | ofun = SMBOPEN_OCREATE | SMBOPEN_OTRUNC; | |
938 | break; | |
939 | default: | |
940 | cFYI(1,("unknown disposition %d",disposition)); | |
941 | ofun = SMBOPEN_OAPPEND; /* regular open */ | |
942 | } | |
943 | return ofun; | |
944 | } | |
945 | ||
946 | int | |
947 | SMBLegacyOpen(const int xid, struct cifsTconInfo *tcon, | |
948 | const char *fileName, const int openDisposition, | |
949 | const int access_flags, const int create_options, __u16 * netfid, | |
950 | int *pOplock, FILE_ALL_INFO * pfile_info, | |
951 | const struct nls_table *nls_codepage, int remap) | |
952 | { | |
953 | int rc = -EACCES; | |
954 | OPENX_REQ *pSMB = NULL; | |
955 | OPENX_RSP *pSMBr = NULL; | |
956 | int bytes_returned; | |
957 | int name_len; | |
958 | __u16 count; | |
959 | ||
960 | OldOpenRetry: | |
961 | rc = smb_init(SMB_COM_OPEN_ANDX, 15, tcon, (void **) &pSMB, | |
962 | (void **) &pSMBr); | |
963 | if (rc) | |
964 | return rc; | |
965 | ||
966 | pSMB->AndXCommand = 0xFF; /* none */ | |
967 | ||
968 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
969 | count = 1; /* account for one byte pad to word boundary */ | |
970 | name_len = | |
971 | cifsConvertToUCS((__le16 *) (pSMB->fileName + 1), | |
972 | fileName, PATH_MAX, nls_codepage, remap); | |
973 | name_len++; /* trailing null */ | |
974 | name_len *= 2; | |
975 | } else { /* BB improve check for buffer overruns BB */ | |
976 | count = 0; /* no pad */ | |
977 | name_len = strnlen(fileName, PATH_MAX); | |
978 | name_len++; /* trailing null */ | |
979 | strncpy(pSMB->fileName, fileName, name_len); | |
980 | } | |
981 | if (*pOplock & REQ_OPLOCK) | |
982 | pSMB->OpenFlags = cpu_to_le16(REQ_OPLOCK); | |
983 | else if (*pOplock & REQ_BATCHOPLOCK) { | |
984 | pSMB->OpenFlags = cpu_to_le16(REQ_BATCHOPLOCK); | |
985 | } | |
986 | pSMB->OpenFlags |= cpu_to_le16(REQ_MORE_INFO); | |
987 | /* BB fixme add conversion for access_flags to bits 0 - 2 of mode */ | |
988 | /* 0 = read | |
989 | 1 = write | |
990 | 2 = rw | |
991 | 3 = execute | |
992 | */ | |
993 | pSMB->Mode = cpu_to_le16(2); | |
994 | pSMB->Mode |= cpu_to_le16(0x40); /* deny none */ | |
995 | /* set file as system file if special file such | |
996 | as fifo and server expecting SFU style and | |
997 | no Unix extensions */ | |
998 | ||
999 | if(create_options & CREATE_OPTION_SPECIAL) | |
1000 | pSMB->FileAttributes = cpu_to_le16(ATTR_SYSTEM); | |
1001 | else | |
3e87d803 | 1002 | pSMB->FileAttributes = cpu_to_le16(0/*ATTR_NORMAL*/); /* BB FIXME */ |
a9d02ad4 SF |
1003 | |
1004 | /* if ((omode & S_IWUGO) == 0) | |
1005 | pSMB->FileAttributes |= cpu_to_le32(ATTR_READONLY);*/ | |
1006 | /* Above line causes problems due to vfs splitting create into two | |
1007 | pieces - need to set mode after file created not while it is | |
1008 | being created */ | |
1009 | ||
1010 | /* BB FIXME BB */ | |
1011 | /* pSMB->CreateOptions = cpu_to_le32(create_options & CREATE_OPTIONS_MASK); */ | |
1012 | /* BB FIXME END BB */ | |
3e87d803 SF |
1013 | |
1014 | pSMB->Sattr = cpu_to_le16(ATTR_HIDDEN | ATTR_SYSTEM | ATTR_DIRECTORY); | |
70ca734a | 1015 | pSMB->OpenFunction = cpu_to_le16(convert_disposition(openDisposition)); |
a9d02ad4 SF |
1016 | count += name_len; |
1017 | pSMB->hdr.smb_buf_length += count; | |
1018 | ||
1019 | pSMB->ByteCount = cpu_to_le16(count); | |
1020 | /* long_op set to 1 to allow for oplock break timeouts */ | |
1021 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1022 | (struct smb_hdr *) pSMBr, &bytes_returned, 1); | |
1023 | cifs_stats_inc(&tcon->num_opens); | |
1024 | if (rc) { | |
1025 | cFYI(1, ("Error in Open = %d", rc)); | |
1026 | } else { | |
1027 | /* BB verify if wct == 15 */ | |
1028 | ||
1029 | /* *pOplock = pSMBr->OplockLevel; */ /* BB take from action field BB */ | |
1030 | ||
1031 | *netfid = pSMBr->Fid; /* cifs fid stays in le */ | |
1032 | /* Let caller know file was created so we can set the mode. */ | |
1033 | /* Do we care about the CreateAction in any other cases? */ | |
1034 | /* BB FIXME BB */ | |
1035 | /* if(cpu_to_le32(FILE_CREATE) == pSMBr->CreateAction) | |
1036 | *pOplock |= CIFS_CREATE_ACTION; */ | |
1037 | /* BB FIXME END */ | |
1038 | ||
1039 | if(pfile_info) { | |
1040 | pfile_info->CreationTime = 0; /* BB convert CreateTime*/ | |
1041 | pfile_info->LastAccessTime = 0; /* BB fixme */ | |
1042 | pfile_info->LastWriteTime = 0; /* BB fixme */ | |
1043 | pfile_info->ChangeTime = 0; /* BB fixme */ | |
70ca734a SF |
1044 | pfile_info->Attributes = |
1045 | cpu_to_le32(le16_to_cpu(pSMBr->FileAttributes)); | |
a9d02ad4 | 1046 | /* the file_info buf is endian converted by caller */ |
70ca734a SF |
1047 | pfile_info->AllocationSize = |
1048 | cpu_to_le64(le32_to_cpu(pSMBr->EndOfFile)); | |
1049 | pfile_info->EndOfFile = pfile_info->AllocationSize; | |
a9d02ad4 SF |
1050 | pfile_info->NumberOfLinks = cpu_to_le32(1); |
1051 | } | |
1052 | } | |
1053 | ||
1054 | cifs_buf_release(pSMB); | |
1055 | if (rc == -EAGAIN) | |
1056 | goto OldOpenRetry; | |
1057 | return rc; | |
1058 | } | |
1059 | ||
1da177e4 LT |
1060 | int |
1061 | CIFSSMBOpen(const int xid, struct cifsTconInfo *tcon, | |
1062 | const char *fileName, const int openDisposition, | |
1063 | const int access_flags, const int create_options, __u16 * netfid, | |
1064 | int *pOplock, FILE_ALL_INFO * pfile_info, | |
737b758c | 1065 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
1066 | { |
1067 | int rc = -EACCES; | |
1068 | OPEN_REQ *pSMB = NULL; | |
1069 | OPEN_RSP *pSMBr = NULL; | |
1070 | int bytes_returned; | |
1071 | int name_len; | |
1072 | __u16 count; | |
1073 | ||
1074 | openRetry: | |
1075 | rc = smb_init(SMB_COM_NT_CREATE_ANDX, 24, tcon, (void **) &pSMB, | |
1076 | (void **) &pSMBr); | |
1077 | if (rc) | |
1078 | return rc; | |
1079 | ||
1080 | pSMB->AndXCommand = 0xFF; /* none */ | |
1081 | ||
1082 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1083 | count = 1; /* account for one byte pad to word boundary */ | |
1084 | name_len = | |
b1a45695 | 1085 | cifsConvertToUCS((__le16 *) (pSMB->fileName + 1), |
737b758c | 1086 | fileName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1087 | name_len++; /* trailing null */ |
1088 | name_len *= 2; | |
1089 | pSMB->NameLength = cpu_to_le16(name_len); | |
09d1db5c | 1090 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
1091 | count = 0; /* no pad */ |
1092 | name_len = strnlen(fileName, PATH_MAX); | |
1093 | name_len++; /* trailing null */ | |
1094 | pSMB->NameLength = cpu_to_le16(name_len); | |
1095 | strncpy(pSMB->fileName, fileName, name_len); | |
1096 | } | |
1097 | if (*pOplock & REQ_OPLOCK) | |
1098 | pSMB->OpenFlags = cpu_to_le32(REQ_OPLOCK); | |
1099 | else if (*pOplock & REQ_BATCHOPLOCK) { | |
1100 | pSMB->OpenFlags = cpu_to_le32(REQ_BATCHOPLOCK); | |
1101 | } | |
1102 | pSMB->DesiredAccess = cpu_to_le32(access_flags); | |
1103 | pSMB->AllocationSize = 0; | |
eda3c029 SF |
1104 | /* set file as system file if special file such |
1105 | as fifo and server expecting SFU style and | |
1106 | no Unix extensions */ | |
1107 | if(create_options & CREATE_OPTION_SPECIAL) | |
1108 | pSMB->FileAttributes = cpu_to_le32(ATTR_SYSTEM); | |
1109 | else | |
1110 | pSMB->FileAttributes = cpu_to_le32(ATTR_NORMAL); | |
1da177e4 LT |
1111 | /* XP does not handle ATTR_POSIX_SEMANTICS */ |
1112 | /* but it helps speed up case sensitive checks for other | |
1113 | servers such as Samba */ | |
1114 | if (tcon->ses->capabilities & CAP_UNIX) | |
1115 | pSMB->FileAttributes |= cpu_to_le32(ATTR_POSIX_SEMANTICS); | |
1116 | ||
1117 | /* if ((omode & S_IWUGO) == 0) | |
1118 | pSMB->FileAttributes |= cpu_to_le32(ATTR_READONLY);*/ | |
1119 | /* Above line causes problems due to vfs splitting create into two | |
1120 | pieces - need to set mode after file created not while it is | |
1121 | being created */ | |
1122 | pSMB->ShareAccess = cpu_to_le32(FILE_SHARE_ALL); | |
1123 | pSMB->CreateDisposition = cpu_to_le32(openDisposition); | |
eda3c029 | 1124 | pSMB->CreateOptions = cpu_to_le32(create_options & CREATE_OPTIONS_MASK); |
09d1db5c SF |
1125 | /* BB Expirement with various impersonation levels and verify */ |
1126 | pSMB->ImpersonationLevel = cpu_to_le32(SECURITY_IMPERSONATION); | |
1da177e4 LT |
1127 | pSMB->SecurityFlags = |
1128 | SECURITY_CONTEXT_TRACKING | SECURITY_EFFECTIVE_ONLY; | |
1129 | ||
1130 | count += name_len; | |
1131 | pSMB->hdr.smb_buf_length += count; | |
1132 | ||
1133 | pSMB->ByteCount = cpu_to_le16(count); | |
1134 | /* long_op set to 1 to allow for oplock break timeouts */ | |
1135 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1136 | (struct smb_hdr *) pSMBr, &bytes_returned, 1); | |
a4544347 | 1137 | cifs_stats_inc(&tcon->num_opens); |
1da177e4 LT |
1138 | if (rc) { |
1139 | cFYI(1, ("Error in Open = %d", rc)); | |
1140 | } else { | |
09d1db5c | 1141 | *pOplock = pSMBr->OplockLevel; /* 1 byte no need to le_to_cpu */ |
1da177e4 LT |
1142 | *netfid = pSMBr->Fid; /* cifs fid stays in le */ |
1143 | /* Let caller know file was created so we can set the mode. */ | |
1144 | /* Do we care about the CreateAction in any other cases? */ | |
1145 | if(cpu_to_le32(FILE_CREATE) == pSMBr->CreateAction) | |
1146 | *pOplock |= CIFS_CREATE_ACTION; | |
1147 | if(pfile_info) { | |
1148 | memcpy((char *)pfile_info,(char *)&pSMBr->CreationTime, | |
1149 | 36 /* CreationTime to Attributes */); | |
1150 | /* the file_info buf is endian converted by caller */ | |
1151 | pfile_info->AllocationSize = pSMBr->AllocationSize; | |
1152 | pfile_info->EndOfFile = pSMBr->EndOfFile; | |
1153 | pfile_info->NumberOfLinks = cpu_to_le32(1); | |
1154 | } | |
1da177e4 | 1155 | } |
a5a2b489 | 1156 | |
1da177e4 LT |
1157 | cifs_buf_release(pSMB); |
1158 | if (rc == -EAGAIN) | |
1159 | goto openRetry; | |
1160 | return rc; | |
1161 | } | |
1162 | ||
1da177e4 LT |
1163 | int |
1164 | CIFSSMBRead(const int xid, struct cifsTconInfo *tcon, | |
ec637e3f SF |
1165 | const int netfid, const unsigned int count, |
1166 | const __u64 lseek, unsigned int *nbytes, char **buf, | |
1167 | int * pbuf_type) | |
1da177e4 LT |
1168 | { |
1169 | int rc = -EACCES; | |
1170 | READ_REQ *pSMB = NULL; | |
1171 | READ_RSP *pSMBr = NULL; | |
1172 | char *pReadData = NULL; | |
bfa0d75a | 1173 | int wct; |
ec637e3f SF |
1174 | int resp_buf_type = 0; |
1175 | struct kvec iov[1]; | |
1da177e4 LT |
1176 | |
1177 | cFYI(1,("Reading %d bytes on fid %d",count,netfid)); | |
bfa0d75a SF |
1178 | if(tcon->ses->capabilities & CAP_LARGE_FILES) |
1179 | wct = 12; | |
1180 | else | |
1181 | wct = 10; /* old style read */ | |
1da177e4 LT |
1182 | |
1183 | *nbytes = 0; | |
ec637e3f | 1184 | rc = small_smb_init(SMB_COM_READ_ANDX, wct, tcon, (void **) &pSMB); |
1da177e4 LT |
1185 | if (rc) |
1186 | return rc; | |
1187 | ||
1188 | /* tcon and ses pointer are checked in smb_init */ | |
1189 | if (tcon->ses->server == NULL) | |
1190 | return -ECONNABORTED; | |
1191 | ||
ec637e3f | 1192 | pSMB->AndXCommand = 0xFF; /* none */ |
1da177e4 LT |
1193 | pSMB->Fid = netfid; |
1194 | pSMB->OffsetLow = cpu_to_le32(lseek & 0xFFFFFFFF); | |
bfa0d75a SF |
1195 | if(wct == 12) |
1196 | pSMB->OffsetHigh = cpu_to_le32(lseek >> 32); | |
ec637e3f SF |
1197 | else if((lseek >> 32) > 0) /* can not handle this big offset for old */ |
1198 | return -EIO; | |
bfa0d75a | 1199 | |
1da177e4 LT |
1200 | pSMB->Remaining = 0; |
1201 | pSMB->MaxCount = cpu_to_le16(count & 0xFFFF); | |
1202 | pSMB->MaxCountHigh = cpu_to_le32(count >> 16); | |
bfa0d75a SF |
1203 | if(wct == 12) |
1204 | pSMB->ByteCount = 0; /* no need to do le conversion since 0 */ | |
1205 | else { | |
1206 | /* old style read */ | |
ec637e3f | 1207 | struct smb_com_readx_req * pSMBW = |
bfa0d75a | 1208 | (struct smb_com_readx_req *)pSMB; |
ec637e3f | 1209 | pSMBW->ByteCount = 0; |
bfa0d75a | 1210 | } |
ec637e3f SF |
1211 | |
1212 | iov[0].iov_base = (char *)pSMB; | |
1213 | iov[0].iov_len = pSMB->hdr.smb_buf_length + 4; | |
1214 | rc = SendReceive2(xid, tcon->ses, iov, | |
1215 | 1 /* num iovecs */, | |
1216 | &resp_buf_type, 0); | |
a4544347 | 1217 | cifs_stats_inc(&tcon->num_reads); |
ec637e3f | 1218 | pSMBr = (READ_RSP *)iov[0].iov_base; |
1da177e4 LT |
1219 | if (rc) { |
1220 | cERROR(1, ("Send error in read = %d", rc)); | |
1221 | } else { | |
1222 | int data_length = le16_to_cpu(pSMBr->DataLengthHigh); | |
1223 | data_length = data_length << 16; | |
1224 | data_length += le16_to_cpu(pSMBr->DataLength); | |
1225 | *nbytes = data_length; | |
1226 | ||
1227 | /*check that DataLength would not go beyond end of SMB */ | |
ec637e3f | 1228 | if ((data_length > CIFSMaxBufSize) |
1da177e4 LT |
1229 | || (data_length > count)) { |
1230 | cFYI(1,("bad length %d for count %d",data_length,count)); | |
1231 | rc = -EIO; | |
1232 | *nbytes = 0; | |
1233 | } else { | |
ec637e3f | 1234 | pReadData = (char *) (&pSMBr->hdr.Protocol) + |
1da177e4 | 1235 | le16_to_cpu(pSMBr->DataOffset); |
ec637e3f SF |
1236 | /* if(rc = copy_to_user(buf, pReadData, data_length)) { |
1237 | cERROR(1,("Faulting on read rc = %d",rc)); | |
1238 | rc = -EFAULT; | |
1239 | }*/ /* can not use copy_to_user when using page cache*/ | |
1da177e4 | 1240 | if(*buf) |
ec637e3f | 1241 | memcpy(*buf,pReadData,data_length); |
1da177e4 LT |
1242 | } |
1243 | } | |
1da177e4 | 1244 | |
4b8f930f | 1245 | /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */ |
ec637e3f SF |
1246 | if(*buf) { |
1247 | if(resp_buf_type == CIFS_SMALL_BUFFER) | |
1248 | cifs_small_buf_release(iov[0].iov_base); | |
1249 | else if(resp_buf_type == CIFS_LARGE_BUFFER) | |
1250 | cifs_buf_release(iov[0].iov_base); | |
6cec2aed SF |
1251 | } else if(resp_buf_type != CIFS_NO_BUFFER) { |
1252 | /* return buffer to caller to free */ | |
1253 | *buf = iov[0].iov_base; | |
ec637e3f SF |
1254 | if(resp_buf_type == CIFS_SMALL_BUFFER) |
1255 | *pbuf_type = CIFS_SMALL_BUFFER; | |
1256 | else if(resp_buf_type == CIFS_LARGE_BUFFER) | |
1257 | *pbuf_type = CIFS_LARGE_BUFFER; | |
6cec2aed | 1258 | } /* else no valid buffer on return - leave as null */ |
ec637e3f SF |
1259 | |
1260 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
1da177e4 LT |
1261 | since file handle passed in no longer valid */ |
1262 | return rc; | |
1263 | } | |
1264 | ||
ec637e3f | 1265 | |
1da177e4 LT |
1266 | int |
1267 | CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon, | |
1268 | const int netfid, const unsigned int count, | |
1269 | const __u64 offset, unsigned int *nbytes, const char *buf, | |
1270 | const char __user * ubuf, const int long_op) | |
1271 | { | |
1272 | int rc = -EACCES; | |
1273 | WRITE_REQ *pSMB = NULL; | |
1274 | WRITE_RSP *pSMBr = NULL; | |
1c955187 | 1275 | int bytes_returned, wct; |
1da177e4 LT |
1276 | __u32 bytes_sent; |
1277 | __u16 byte_count; | |
1278 | ||
1279 | /* cFYI(1,("write at %lld %d bytes",offset,count));*/ | |
1c955187 SF |
1280 | if(tcon->ses == NULL) |
1281 | return -ECONNABORTED; | |
1282 | ||
1283 | if(tcon->ses->capabilities & CAP_LARGE_FILES) | |
1284 | wct = 14; | |
1285 | else | |
1286 | wct = 12; | |
1287 | ||
1288 | rc = smb_init(SMB_COM_WRITE_ANDX, wct, tcon, (void **) &pSMB, | |
1da177e4 LT |
1289 | (void **) &pSMBr); |
1290 | if (rc) | |
1291 | return rc; | |
1292 | /* tcon and ses pointer are checked in smb_init */ | |
1293 | if (tcon->ses->server == NULL) | |
1294 | return -ECONNABORTED; | |
1295 | ||
1296 | pSMB->AndXCommand = 0xFF; /* none */ | |
1297 | pSMB->Fid = netfid; | |
1298 | pSMB->OffsetLow = cpu_to_le32(offset & 0xFFFFFFFF); | |
1c955187 SF |
1299 | if(wct == 14) |
1300 | pSMB->OffsetHigh = cpu_to_le32(offset >> 32); | |
1301 | else if((offset >> 32) > 0) /* can not handle this big offset for old */ | |
1302 | return -EIO; | |
1303 | ||
1da177e4 LT |
1304 | pSMB->Reserved = 0xFFFFFFFF; |
1305 | pSMB->WriteMode = 0; | |
1306 | pSMB->Remaining = 0; | |
1307 | ||
1308 | /* Can increase buffer size if buffer is big enough in some cases - ie we | |
1309 | can send more if LARGE_WRITE_X capability returned by the server and if | |
1310 | our buffer is big enough or if we convert to iovecs on socket writes | |
1311 | and eliminate the copy to the CIFS buffer */ | |
1312 | if(tcon->ses->capabilities & CAP_LARGE_WRITE_X) { | |
1313 | bytes_sent = min_t(const unsigned int, CIFSMaxBufSize, count); | |
1314 | } else { | |
1315 | bytes_sent = (tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) | |
1316 | & ~0xFF; | |
1317 | } | |
1318 | ||
1319 | if (bytes_sent > count) | |
1320 | bytes_sent = count; | |
1321 | pSMB->DataOffset = | |
e30dcf3a | 1322 | cpu_to_le16(offsetof(struct smb_com_write_req,Data) - 4); |
1da177e4 LT |
1323 | if(buf) |
1324 | memcpy(pSMB->Data,buf,bytes_sent); | |
1325 | else if(ubuf) { | |
1326 | if(copy_from_user(pSMB->Data,ubuf,bytes_sent)) { | |
1327 | cifs_buf_release(pSMB); | |
1328 | return -EFAULT; | |
1329 | } | |
e30dcf3a | 1330 | } else if (count != 0) { |
1da177e4 LT |
1331 | /* No buffer */ |
1332 | cifs_buf_release(pSMB); | |
1333 | return -EINVAL; | |
e30dcf3a SF |
1334 | } /* else setting file size with write of zero bytes */ |
1335 | if(wct == 14) | |
1336 | byte_count = bytes_sent + 1; /* pad */ | |
1337 | else /* wct == 12 */ { | |
1338 | byte_count = bytes_sent + 5; /* bigger pad, smaller smb hdr */ | |
1da177e4 | 1339 | } |
1da177e4 LT |
1340 | pSMB->DataLengthLow = cpu_to_le16(bytes_sent & 0xFFFF); |
1341 | pSMB->DataLengthHigh = cpu_to_le16(bytes_sent >> 16); | |
e30dcf3a | 1342 | pSMB->hdr.smb_buf_length += byte_count; |
1c955187 SF |
1343 | |
1344 | if(wct == 14) | |
1345 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
e30dcf3a | 1346 | else { /* old style write has byte count 4 bytes earlier so 4 bytes pad */ |
1c955187 SF |
1347 | struct smb_com_writex_req * pSMBW = |
1348 | (struct smb_com_writex_req *)pSMB; | |
1349 | pSMBW->ByteCount = cpu_to_le16(byte_count); | |
1350 | } | |
1da177e4 LT |
1351 | |
1352 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1353 | (struct smb_hdr *) pSMBr, &bytes_returned, long_op); | |
a4544347 | 1354 | cifs_stats_inc(&tcon->num_writes); |
1da177e4 LT |
1355 | if (rc) { |
1356 | cFYI(1, ("Send error in write = %d", rc)); | |
1357 | *nbytes = 0; | |
1358 | } else { | |
1359 | *nbytes = le16_to_cpu(pSMBr->CountHigh); | |
1360 | *nbytes = (*nbytes) << 16; | |
1361 | *nbytes += le16_to_cpu(pSMBr->Count); | |
1362 | } | |
1363 | ||
1364 | cifs_buf_release(pSMB); | |
1365 | ||
1366 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
1367 | since file handle passed in no longer valid */ | |
1368 | ||
1369 | return rc; | |
1370 | } | |
1371 | ||
d6e04ae6 SF |
1372 | int |
1373 | CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon, | |
1da177e4 | 1374 | const int netfid, const unsigned int count, |
3e84469d SF |
1375 | const __u64 offset, unsigned int *nbytes, struct kvec *iov, |
1376 | int n_vec, const int long_op) | |
1da177e4 LT |
1377 | { |
1378 | int rc = -EACCES; | |
1379 | WRITE_REQ *pSMB = NULL; | |
ec637e3f | 1380 | int wct; |
d6e04ae6 | 1381 | int smb_hdr_len; |
ec637e3f | 1382 | int resp_buf_type = 0; |
1da177e4 | 1383 | |
ff7feac9 SF |
1384 | cFYI(1,("write2 at %lld %d bytes", (long long)offset, count)); |
1385 | ||
8cc64c6e SF |
1386 | if(tcon->ses->capabilities & CAP_LARGE_FILES) |
1387 | wct = 14; | |
1388 | else | |
1389 | wct = 12; | |
1390 | rc = small_smb_init(SMB_COM_WRITE_ANDX, wct, tcon, (void **) &pSMB); | |
1da177e4 LT |
1391 | if (rc) |
1392 | return rc; | |
1da177e4 LT |
1393 | /* tcon and ses pointer are checked in smb_init */ |
1394 | if (tcon->ses->server == NULL) | |
1395 | return -ECONNABORTED; | |
1396 | ||
d6e04ae6 | 1397 | pSMB->AndXCommand = 0xFF; /* none */ |
1da177e4 LT |
1398 | pSMB->Fid = netfid; |
1399 | pSMB->OffsetLow = cpu_to_le32(offset & 0xFFFFFFFF); | |
8cc64c6e SF |
1400 | if(wct == 14) |
1401 | pSMB->OffsetHigh = cpu_to_le32(offset >> 32); | |
1402 | else if((offset >> 32) > 0) /* can not handle this big offset for old */ | |
1403 | return -EIO; | |
1da177e4 LT |
1404 | pSMB->Reserved = 0xFFFFFFFF; |
1405 | pSMB->WriteMode = 0; | |
1406 | pSMB->Remaining = 0; | |
d6e04ae6 | 1407 | |
1da177e4 LT |
1408 | pSMB->DataOffset = |
1409 | cpu_to_le16(offsetof(struct smb_com_write_req,Data) - 4); | |
1410 | ||
3e84469d SF |
1411 | pSMB->DataLengthLow = cpu_to_le16(count & 0xFFFF); |
1412 | pSMB->DataLengthHigh = cpu_to_le16(count >> 16); | |
d6e04ae6 | 1413 | smb_hdr_len = pSMB->hdr.smb_buf_length + 1; /* hdr + 1 byte pad */ |
8cc64c6e SF |
1414 | if(wct == 14) |
1415 | pSMB->hdr.smb_buf_length += count+1; | |
1416 | else /* wct == 12 */ | |
1417 | pSMB->hdr.smb_buf_length += count+5; /* smb data starts later */ | |
1418 | if(wct == 14) | |
1419 | pSMB->ByteCount = cpu_to_le16(count + 1); | |
1420 | else /* wct == 12 */ /* bigger pad, smaller smb hdr, keep offset ok */ { | |
1421 | struct smb_com_writex_req * pSMBW = | |
1422 | (struct smb_com_writex_req *)pSMB; | |
1423 | pSMBW->ByteCount = cpu_to_le16(count + 5); | |
1424 | } | |
3e84469d | 1425 | iov[0].iov_base = pSMB; |
ec637e3f SF |
1426 | if(wct == 14) |
1427 | iov[0].iov_len = smb_hdr_len + 4; | |
1428 | else /* wct == 12 pad bigger by four bytes */ | |
1429 | iov[0].iov_len = smb_hdr_len + 8; | |
1430 | ||
1da177e4 | 1431 | |
ec637e3f | 1432 | rc = SendReceive2(xid, tcon->ses, iov, n_vec + 1, &resp_buf_type, |
3e84469d | 1433 | long_op); |
a4544347 | 1434 | cifs_stats_inc(&tcon->num_writes); |
1da177e4 | 1435 | if (rc) { |
8cc64c6e | 1436 | cFYI(1, ("Send error Write2 = %d", rc)); |
1da177e4 | 1437 | *nbytes = 0; |
ec637e3f SF |
1438 | } else if(resp_buf_type == 0) { |
1439 | /* presumably this can not happen, but best to be safe */ | |
1440 | rc = -EIO; | |
1441 | *nbytes = 0; | |
d6e04ae6 | 1442 | } else { |
ec637e3f | 1443 | WRITE_RSP * pSMBr = (WRITE_RSP *)iov[0].iov_base; |
d6e04ae6 SF |
1444 | *nbytes = le16_to_cpu(pSMBr->CountHigh); |
1445 | *nbytes = (*nbytes) << 16; | |
1446 | *nbytes += le16_to_cpu(pSMBr->Count); | |
84afc29b | 1447 | } |
1da177e4 | 1448 | |
4b8f930f | 1449 | /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */ |
ec637e3f SF |
1450 | if(resp_buf_type == CIFS_SMALL_BUFFER) |
1451 | cifs_small_buf_release(iov[0].iov_base); | |
1452 | else if(resp_buf_type == CIFS_LARGE_BUFFER) | |
1453 | cifs_buf_release(iov[0].iov_base); | |
1da177e4 LT |
1454 | |
1455 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
1456 | since file handle passed in no longer valid */ | |
1457 | ||
1458 | return rc; | |
1459 | } | |
d6e04ae6 SF |
1460 | |
1461 | ||
1da177e4 LT |
1462 | int |
1463 | CIFSSMBLock(const int xid, struct cifsTconInfo *tcon, | |
1464 | const __u16 smb_file_id, const __u64 len, | |
1465 | const __u64 offset, const __u32 numUnlock, | |
1466 | const __u32 numLock, const __u8 lockType, const int waitFlag) | |
1467 | { | |
1468 | int rc = 0; | |
1469 | LOCK_REQ *pSMB = NULL; | |
1470 | LOCK_RSP *pSMBr = NULL; | |
1471 | int bytes_returned; | |
1472 | int timeout = 0; | |
1473 | __u16 count; | |
1474 | ||
1475 | cFYI(1, ("In CIFSSMBLock - timeout %d numLock %d",waitFlag,numLock)); | |
46810cbf SF |
1476 | rc = small_smb_init(SMB_COM_LOCKING_ANDX, 8, tcon, (void **) &pSMB); |
1477 | ||
1da177e4 LT |
1478 | if (rc) |
1479 | return rc; | |
1480 | ||
46810cbf SF |
1481 | pSMBr = (LOCK_RSP *)pSMB; /* BB removeme BB */ |
1482 | ||
1da177e4 LT |
1483 | if(lockType == LOCKING_ANDX_OPLOCK_RELEASE) { |
1484 | timeout = -1; /* no response expected */ | |
1485 | pSMB->Timeout = 0; | |
1486 | } else if (waitFlag == TRUE) { | |
1487 | timeout = 3; /* blocking operation, no timeout */ | |
1488 | pSMB->Timeout = cpu_to_le32(-1);/* blocking - do not time out */ | |
1489 | } else { | |
1490 | pSMB->Timeout = 0; | |
1491 | } | |
1492 | ||
1493 | pSMB->NumberOfLocks = cpu_to_le16(numLock); | |
1494 | pSMB->NumberOfUnlocks = cpu_to_le16(numUnlock); | |
1495 | pSMB->LockType = lockType; | |
1496 | pSMB->AndXCommand = 0xFF; /* none */ | |
1497 | pSMB->Fid = smb_file_id; /* netfid stays le */ | |
1498 | ||
1499 | if((numLock != 0) || (numUnlock != 0)) { | |
1500 | pSMB->Locks[0].Pid = cpu_to_le16(current->tgid); | |
1501 | /* BB where to store pid high? */ | |
1502 | pSMB->Locks[0].LengthLow = cpu_to_le32((u32)len); | |
1503 | pSMB->Locks[0].LengthHigh = cpu_to_le32((u32)(len>>32)); | |
1504 | pSMB->Locks[0].OffsetLow = cpu_to_le32((u32)offset); | |
1505 | pSMB->Locks[0].OffsetHigh = cpu_to_le32((u32)(offset>>32)); | |
1506 | count = sizeof(LOCKING_ANDX_RANGE); | |
1507 | } else { | |
1508 | /* oplock break */ | |
1509 | count = 0; | |
1510 | } | |
1511 | pSMB->hdr.smb_buf_length += count; | |
1512 | pSMB->ByteCount = cpu_to_le16(count); | |
1513 | ||
7ee1af76 JA |
1514 | if (waitFlag) { |
1515 | rc = SendReceiveBlockingLock(xid, tcon, (struct smb_hdr *) pSMB, | |
1516 | (struct smb_hdr *) pSMBr, &bytes_returned); | |
1517 | } else { | |
1518 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1da177e4 | 1519 | (struct smb_hdr *) pSMBr, &bytes_returned, timeout); |
7ee1af76 | 1520 | } |
a4544347 | 1521 | cifs_stats_inc(&tcon->num_locks); |
1da177e4 LT |
1522 | if (rc) { |
1523 | cFYI(1, ("Send error in Lock = %d", rc)); | |
1524 | } | |
46810cbf | 1525 | cifs_small_buf_release(pSMB); |
1da177e4 LT |
1526 | |
1527 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
1528 | since file handle passed in no longer valid */ | |
1529 | return rc; | |
1530 | } | |
1531 | ||
08547b03 SF |
1532 | int |
1533 | CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon, | |
1534 | const __u16 smb_file_id, const int get_flag, const __u64 len, | |
fc94cdb9 SF |
1535 | struct file_lock *pLockData, const __u16 lock_type, |
1536 | const int waitFlag) | |
08547b03 SF |
1537 | { |
1538 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
1539 | struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; | |
1540 | char *data_offset; | |
1541 | struct cifs_posix_lock *parm_data; | |
1542 | int rc = 0; | |
3a5ff61c | 1543 | int timeout = 0; |
08547b03 SF |
1544 | int bytes_returned = 0; |
1545 | __u16 params, param_offset, offset, byte_count, count; | |
1546 | ||
1547 | cFYI(1, ("Posix Lock")); | |
fc94cdb9 SF |
1548 | |
1549 | if(pLockData == NULL) | |
1550 | return EINVAL; | |
1551 | ||
08547b03 SF |
1552 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
1553 | ||
1554 | if (rc) | |
1555 | return rc; | |
1556 | ||
1557 | pSMBr = (struct smb_com_transaction2_sfi_rsp *)pSMB; | |
1558 | ||
1559 | params = 6; | |
1560 | pSMB->MaxSetupCount = 0; | |
1561 | pSMB->Reserved = 0; | |
1562 | pSMB->Flags = 0; | |
08547b03 SF |
1563 | pSMB->Reserved2 = 0; |
1564 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
1565 | offset = param_offset + params; | |
1566 | ||
1567 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
1568 | ||
1569 | count = sizeof(struct cifs_posix_lock); | |
1570 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
1571 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB PDU from sess */ | |
1572 | pSMB->SetupCount = 1; | |
1573 | pSMB->Reserved3 = 0; | |
1574 | if(get_flag) | |
1575 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FILE_INFORMATION); | |
1576 | else | |
1577 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
1578 | byte_count = 3 /* pad */ + params + count; | |
1579 | pSMB->DataCount = cpu_to_le16(count); | |
1580 | pSMB->ParameterCount = cpu_to_le16(params); | |
1581 | pSMB->TotalDataCount = pSMB->DataCount; | |
1582 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
1583 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
1584 | parm_data = (struct cifs_posix_lock *) | |
1585 | (((char *) &pSMB->hdr.Protocol) + offset); | |
1586 | ||
1587 | parm_data->lock_type = cpu_to_le16(lock_type); | |
3a5ff61c SF |
1588 | if(waitFlag) { |
1589 | timeout = 3; /* blocking operation, no timeout */ | |
cec6815a | 1590 | parm_data->lock_flags = cpu_to_le16(1); |
3a5ff61c SF |
1591 | pSMB->Timeout = cpu_to_le32(-1); |
1592 | } else | |
1593 | pSMB->Timeout = 0; | |
1594 | ||
08547b03 | 1595 | parm_data->pid = cpu_to_le32(current->tgid); |
fc94cdb9 | 1596 | parm_data->start = cpu_to_le64(pLockData->fl_start); |
cec6815a | 1597 | parm_data->length = cpu_to_le64(len); /* normalize negative numbers */ |
08547b03 SF |
1598 | |
1599 | pSMB->DataOffset = cpu_to_le16(offset); | |
f26282c9 | 1600 | pSMB->Fid = smb_file_id; |
08547b03 SF |
1601 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_POSIX_LOCK); |
1602 | pSMB->Reserved4 = 0; | |
1603 | pSMB->hdr.smb_buf_length += byte_count; | |
1604 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
7ee1af76 JA |
1605 | if (waitFlag) { |
1606 | rc = SendReceiveBlockingLock(xid, tcon, (struct smb_hdr *) pSMB, | |
1607 | (struct smb_hdr *) pSMBr, &bytes_returned); | |
1608 | } else { | |
1609 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3a5ff61c | 1610 | (struct smb_hdr *) pSMBr, &bytes_returned, timeout); |
7ee1af76 JA |
1611 | } |
1612 | ||
08547b03 SF |
1613 | if (rc) { |
1614 | cFYI(1, ("Send error in Posix Lock = %d", rc)); | |
fc94cdb9 SF |
1615 | } else if (get_flag) { |
1616 | /* lock structure can be returned on get */ | |
1617 | __u16 data_offset; | |
1618 | __u16 data_count; | |
1619 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
1620 | ||
1621 | if (rc || (pSMBr->ByteCount < sizeof(struct cifs_posix_lock))) { | |
1622 | rc = -EIO; /* bad smb */ | |
1623 | goto plk_err_exit; | |
1624 | } | |
1625 | if(pLockData == NULL) { | |
1626 | rc = -EINVAL; | |
1627 | goto plk_err_exit; | |
1628 | } | |
1629 | data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
1630 | data_count = le16_to_cpu(pSMBr->t2.DataCount); | |
1631 | if(data_count < sizeof(struct cifs_posix_lock)) { | |
1632 | rc = -EIO; | |
1633 | goto plk_err_exit; | |
1634 | } | |
1635 | parm_data = (struct cifs_posix_lock *) | |
1636 | ((char *)&pSMBr->hdr.Protocol + data_offset); | |
1637 | if(parm_data->lock_type == cpu_to_le16(CIFS_UNLCK)) | |
1638 | pLockData->fl_type = F_UNLCK; | |
08547b03 | 1639 | } |
fc94cdb9 SF |
1640 | |
1641 | plk_err_exit: | |
08547b03 SF |
1642 | if (pSMB) |
1643 | cifs_small_buf_release(pSMB); | |
1644 | ||
1645 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
1646 | since file handle passed in no longer valid */ | |
1647 | ||
1648 | return rc; | |
1649 | } | |
1650 | ||
1651 | ||
1da177e4 LT |
1652 | int |
1653 | CIFSSMBClose(const int xid, struct cifsTconInfo *tcon, int smb_file_id) | |
1654 | { | |
1655 | int rc = 0; | |
1656 | CLOSE_REQ *pSMB = NULL; | |
1657 | CLOSE_RSP *pSMBr = NULL; | |
1658 | int bytes_returned; | |
1659 | cFYI(1, ("In CIFSSMBClose")); | |
1660 | ||
1661 | /* do not retry on dead session on close */ | |
1662 | rc = small_smb_init(SMB_COM_CLOSE, 3, tcon, (void **) &pSMB); | |
1663 | if(rc == -EAGAIN) | |
1664 | return 0; | |
1665 | if (rc) | |
1666 | return rc; | |
1667 | ||
1668 | pSMBr = (CLOSE_RSP *)pSMB; /* BB removeme BB */ | |
1669 | ||
1670 | pSMB->FileID = (__u16) smb_file_id; | |
b815f1e5 | 1671 | pSMB->LastWriteTime = 0xFFFFFFFF; |
1da177e4 LT |
1672 | pSMB->ByteCount = 0; |
1673 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1674 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 1675 | cifs_stats_inc(&tcon->num_closes); |
1da177e4 LT |
1676 | if (rc) { |
1677 | if(rc!=-EINTR) { | |
1678 | /* EINTR is expected when user ctl-c to kill app */ | |
1679 | cERROR(1, ("Send error in Close = %d", rc)); | |
1680 | } | |
1681 | } | |
1682 | ||
1683 | cifs_small_buf_release(pSMB); | |
1684 | ||
1685 | /* Since session is dead, file will be closed on server already */ | |
1686 | if(rc == -EAGAIN) | |
1687 | rc = 0; | |
1688 | ||
1689 | return rc; | |
1690 | } | |
1691 | ||
1692 | int | |
1693 | CIFSSMBRename(const int xid, struct cifsTconInfo *tcon, | |
1694 | const char *fromName, const char *toName, | |
737b758c | 1695 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
1696 | { |
1697 | int rc = 0; | |
1698 | RENAME_REQ *pSMB = NULL; | |
1699 | RENAME_RSP *pSMBr = NULL; | |
1700 | int bytes_returned; | |
1701 | int name_len, name_len2; | |
1702 | __u16 count; | |
1703 | ||
1704 | cFYI(1, ("In CIFSSMBRename")); | |
1705 | renameRetry: | |
1706 | rc = smb_init(SMB_COM_RENAME, 1, tcon, (void **) &pSMB, | |
1707 | (void **) &pSMBr); | |
1708 | if (rc) | |
1709 | return rc; | |
1710 | ||
1711 | pSMB->BufferFormat = 0x04; | |
1712 | pSMB->SearchAttributes = | |
1713 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | | |
1714 | ATTR_DIRECTORY); | |
1715 | ||
1716 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1717 | name_len = | |
b1a45695 | 1718 | cifsConvertToUCS((__le16 *) pSMB->OldFileName, fromName, |
737b758c | 1719 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1720 | name_len++; /* trailing null */ |
1721 | name_len *= 2; | |
1722 | pSMB->OldFileName[name_len] = 0x04; /* pad */ | |
1723 | /* protocol requires ASCII signature byte on Unicode string */ | |
1724 | pSMB->OldFileName[name_len + 1] = 0x00; | |
1725 | name_len2 = | |
b1a45695 | 1726 | cifsConvertToUCS((__le16 *) &pSMB->OldFileName[name_len + 2], |
737b758c | 1727 | toName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1728 | name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; |
1729 | name_len2 *= 2; /* convert to bytes */ | |
1730 | } else { /* BB improve the check for buffer overruns BB */ | |
1731 | name_len = strnlen(fromName, PATH_MAX); | |
1732 | name_len++; /* trailing null */ | |
1733 | strncpy(pSMB->OldFileName, fromName, name_len); | |
1734 | name_len2 = strnlen(toName, PATH_MAX); | |
1735 | name_len2++; /* trailing null */ | |
1736 | pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */ | |
1737 | strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2); | |
1738 | name_len2++; /* trailing null */ | |
1739 | name_len2++; /* signature byte */ | |
1740 | } | |
1741 | ||
1742 | count = 1 /* 1st signature byte */ + name_len + name_len2; | |
1743 | pSMB->hdr.smb_buf_length += count; | |
1744 | pSMB->ByteCount = cpu_to_le16(count); | |
1745 | ||
1746 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1747 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 1748 | cifs_stats_inc(&tcon->num_renames); |
1da177e4 LT |
1749 | if (rc) { |
1750 | cFYI(1, ("Send error in rename = %d", rc)); | |
1751 | } | |
1752 | ||
1da177e4 LT |
1753 | cifs_buf_release(pSMB); |
1754 | ||
1755 | if (rc == -EAGAIN) | |
1756 | goto renameRetry; | |
1757 | ||
1758 | return rc; | |
1759 | } | |
1760 | ||
1761 | int CIFSSMBRenameOpenFile(const int xid,struct cifsTconInfo *pTcon, | |
737b758c SF |
1762 | int netfid, char * target_name, |
1763 | const struct nls_table * nls_codepage, int remap) | |
1da177e4 LT |
1764 | { |
1765 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
1766 | struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; | |
1767 | struct set_file_rename * rename_info; | |
1768 | char *data_offset; | |
1769 | char dummy_string[30]; | |
1770 | int rc = 0; | |
1771 | int bytes_returned = 0; | |
1772 | int len_of_str; | |
1773 | __u16 params, param_offset, offset, count, byte_count; | |
1774 | ||
1775 | cFYI(1, ("Rename to File by handle")); | |
1776 | rc = smb_init(SMB_COM_TRANSACTION2, 15, pTcon, (void **) &pSMB, | |
1777 | (void **) &pSMBr); | |
1778 | if (rc) | |
1779 | return rc; | |
1780 | ||
1781 | params = 6; | |
1782 | pSMB->MaxSetupCount = 0; | |
1783 | pSMB->Reserved = 0; | |
1784 | pSMB->Flags = 0; | |
1785 | pSMB->Timeout = 0; | |
1786 | pSMB->Reserved2 = 0; | |
1787 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
1788 | offset = param_offset + params; | |
1789 | ||
1790 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
1791 | rename_info = (struct set_file_rename *) data_offset; | |
1792 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
1793 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB PDU from sess */ | |
1794 | pSMB->SetupCount = 1; | |
1795 | pSMB->Reserved3 = 0; | |
1796 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
1797 | byte_count = 3 /* pad */ + params; | |
1798 | pSMB->ParameterCount = cpu_to_le16(params); | |
1799 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
1800 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
1801 | pSMB->DataOffset = cpu_to_le16(offset); | |
1802 | /* construct random name ".cifs_tmp<inodenum><mid>" */ | |
1803 | rename_info->overwrite = cpu_to_le32(1); | |
1804 | rename_info->root_fid = 0; | |
1805 | /* unicode only call */ | |
1806 | if(target_name == NULL) { | |
1807 | sprintf(dummy_string,"cifs%x",pSMB->hdr.Mid); | |
b1a45695 | 1808 | len_of_str = cifsConvertToUCS((__le16 *)rename_info->target_name, |
737b758c | 1809 | dummy_string, 24, nls_codepage, remap); |
1da177e4 | 1810 | } else { |
b1a45695 | 1811 | len_of_str = cifsConvertToUCS((__le16 *)rename_info->target_name, |
737b758c | 1812 | target_name, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1813 | } |
1814 | rename_info->target_name_len = cpu_to_le32(2 * len_of_str); | |
1815 | count = 12 /* sizeof(struct set_file_rename) */ + (2 * len_of_str) + 2; | |
1816 | byte_count += count; | |
1817 | pSMB->DataCount = cpu_to_le16(count); | |
1818 | pSMB->TotalDataCount = pSMB->DataCount; | |
1819 | pSMB->Fid = netfid; | |
1820 | pSMB->InformationLevel = | |
1821 | cpu_to_le16(SMB_SET_FILE_RENAME_INFORMATION); | |
1822 | pSMB->Reserved4 = 0; | |
1823 | pSMB->hdr.smb_buf_length += byte_count; | |
1824 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
1825 | rc = SendReceive(xid, pTcon->ses, (struct smb_hdr *) pSMB, | |
1826 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 1827 | cifs_stats_inc(&pTcon->num_t2renames); |
1da177e4 LT |
1828 | if (rc) { |
1829 | cFYI(1,("Send error in Rename (by file handle) = %d", rc)); | |
1830 | } | |
a5a2b489 | 1831 | |
1da177e4 LT |
1832 | cifs_buf_release(pSMB); |
1833 | ||
1834 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
1835 | since file handle passed in no longer valid */ | |
1836 | ||
1837 | return rc; | |
1838 | } | |
1839 | ||
1840 | int | |
1841 | CIFSSMBCopy(const int xid, struct cifsTconInfo *tcon, const char * fromName, | |
1842 | const __u16 target_tid, const char *toName, const int flags, | |
737b758c | 1843 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
1844 | { |
1845 | int rc = 0; | |
1846 | COPY_REQ *pSMB = NULL; | |
1847 | COPY_RSP *pSMBr = NULL; | |
1848 | int bytes_returned; | |
1849 | int name_len, name_len2; | |
1850 | __u16 count; | |
1851 | ||
1852 | cFYI(1, ("In CIFSSMBCopy")); | |
1853 | copyRetry: | |
1854 | rc = smb_init(SMB_COM_COPY, 1, tcon, (void **) &pSMB, | |
1855 | (void **) &pSMBr); | |
1856 | if (rc) | |
1857 | return rc; | |
1858 | ||
1859 | pSMB->BufferFormat = 0x04; | |
1860 | pSMB->Tid2 = target_tid; | |
1861 | ||
1862 | pSMB->Flags = cpu_to_le16(flags & COPY_TREE); | |
1863 | ||
1864 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
b1a45695 | 1865 | name_len = cifsConvertToUCS((__le16 *) pSMB->OldFileName, |
737b758c SF |
1866 | fromName, PATH_MAX, nls_codepage, |
1867 | remap); | |
1da177e4 LT |
1868 | name_len++; /* trailing null */ |
1869 | name_len *= 2; | |
1870 | pSMB->OldFileName[name_len] = 0x04; /* pad */ | |
1871 | /* protocol requires ASCII signature byte on Unicode string */ | |
1872 | pSMB->OldFileName[name_len + 1] = 0x00; | |
b1a45695 | 1873 | name_len2 = cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2], |
737b758c | 1874 | toName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1875 | name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; |
1876 | name_len2 *= 2; /* convert to bytes */ | |
1877 | } else { /* BB improve the check for buffer overruns BB */ | |
1878 | name_len = strnlen(fromName, PATH_MAX); | |
1879 | name_len++; /* trailing null */ | |
1880 | strncpy(pSMB->OldFileName, fromName, name_len); | |
1881 | name_len2 = strnlen(toName, PATH_MAX); | |
1882 | name_len2++; /* trailing null */ | |
1883 | pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */ | |
1884 | strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2); | |
1885 | name_len2++; /* trailing null */ | |
1886 | name_len2++; /* signature byte */ | |
1887 | } | |
1888 | ||
1889 | count = 1 /* 1st signature byte */ + name_len + name_len2; | |
1890 | pSMB->hdr.smb_buf_length += count; | |
1891 | pSMB->ByteCount = cpu_to_le16(count); | |
1892 | ||
1893 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1894 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
1895 | if (rc) { | |
1896 | cFYI(1, ("Send error in copy = %d with %d files copied", | |
1897 | rc, le16_to_cpu(pSMBr->CopyCount))); | |
1898 | } | |
1899 | if (pSMB) | |
1900 | cifs_buf_release(pSMB); | |
1901 | ||
1902 | if (rc == -EAGAIN) | |
1903 | goto copyRetry; | |
1904 | ||
1905 | return rc; | |
1906 | } | |
1907 | ||
1908 | int | |
1909 | CIFSUnixCreateSymLink(const int xid, struct cifsTconInfo *tcon, | |
1910 | const char *fromName, const char *toName, | |
1911 | const struct nls_table *nls_codepage) | |
1912 | { | |
1913 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
1914 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
1915 | char *data_offset; | |
1916 | int name_len; | |
1917 | int name_len_target; | |
1918 | int rc = 0; | |
1919 | int bytes_returned = 0; | |
1920 | __u16 params, param_offset, offset, byte_count; | |
1921 | ||
1922 | cFYI(1, ("In Symlink Unix style")); | |
1923 | createSymLinkRetry: | |
1924 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
1925 | (void **) &pSMBr); | |
1926 | if (rc) | |
1927 | return rc; | |
1928 | ||
1929 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1930 | name_len = | |
e89dc920 | 1931 | cifs_strtoUCS((__le16 *) pSMB->FileName, fromName, PATH_MAX |
1da177e4 LT |
1932 | /* find define for this maxpathcomponent */ |
1933 | , nls_codepage); | |
1934 | name_len++; /* trailing null */ | |
1935 | name_len *= 2; | |
1936 | ||
1937 | } else { /* BB improve the check for buffer overruns BB */ | |
1938 | name_len = strnlen(fromName, PATH_MAX); | |
1939 | name_len++; /* trailing null */ | |
1940 | strncpy(pSMB->FileName, fromName, name_len); | |
1941 | } | |
1942 | params = 6 + name_len; | |
1943 | pSMB->MaxSetupCount = 0; | |
1944 | pSMB->Reserved = 0; | |
1945 | pSMB->Flags = 0; | |
1946 | pSMB->Timeout = 0; | |
1947 | pSMB->Reserved2 = 0; | |
1948 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
1949 | InformationLevel) - 4; | |
1950 | offset = param_offset + params; | |
1951 | ||
1952 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
1953 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1954 | name_len_target = | |
e89dc920 | 1955 | cifs_strtoUCS((__le16 *) data_offset, toName, PATH_MAX |
1da177e4 LT |
1956 | /* find define for this maxpathcomponent */ |
1957 | , nls_codepage); | |
1958 | name_len_target++; /* trailing null */ | |
1959 | name_len_target *= 2; | |
1960 | } else { /* BB improve the check for buffer overruns BB */ | |
1961 | name_len_target = strnlen(toName, PATH_MAX); | |
1962 | name_len_target++; /* trailing null */ | |
1963 | strncpy(data_offset, toName, name_len_target); | |
1964 | } | |
1965 | ||
1966 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
1967 | /* BB find exact max on data count below from sess */ | |
1968 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1969 | pSMB->SetupCount = 1; | |
1970 | pSMB->Reserved3 = 0; | |
1971 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
1972 | byte_count = 3 /* pad */ + params + name_len_target; | |
1973 | pSMB->DataCount = cpu_to_le16(name_len_target); | |
1974 | pSMB->ParameterCount = cpu_to_le16(params); | |
1975 | pSMB->TotalDataCount = pSMB->DataCount; | |
1976 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
1977 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
1978 | pSMB->DataOffset = cpu_to_le16(offset); | |
1979 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_LINK); | |
1980 | pSMB->Reserved4 = 0; | |
1981 | pSMB->hdr.smb_buf_length += byte_count; | |
1982 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
1983 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1984 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 1985 | cifs_stats_inc(&tcon->num_symlinks); |
1da177e4 LT |
1986 | if (rc) { |
1987 | cFYI(1, | |
1988 | ("Send error in SetPathInfo (create symlink) = %d", | |
1989 | rc)); | |
1990 | } | |
1991 | ||
1992 | if (pSMB) | |
1993 | cifs_buf_release(pSMB); | |
1994 | ||
1995 | if (rc == -EAGAIN) | |
1996 | goto createSymLinkRetry; | |
1997 | ||
1998 | return rc; | |
1999 | } | |
2000 | ||
2001 | int | |
2002 | CIFSUnixCreateHardLink(const int xid, struct cifsTconInfo *tcon, | |
2003 | const char *fromName, const char *toName, | |
737b758c | 2004 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
2005 | { |
2006 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
2007 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
2008 | char *data_offset; | |
2009 | int name_len; | |
2010 | int name_len_target; | |
2011 | int rc = 0; | |
2012 | int bytes_returned = 0; | |
2013 | __u16 params, param_offset, offset, byte_count; | |
2014 | ||
2015 | cFYI(1, ("In Create Hard link Unix style")); | |
2016 | createHardLinkRetry: | |
2017 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2018 | (void **) &pSMBr); | |
2019 | if (rc) | |
2020 | return rc; | |
2021 | ||
2022 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
b1a45695 | 2023 | name_len = cifsConvertToUCS((__le16 *) pSMB->FileName, toName, |
737b758c | 2024 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2025 | name_len++; /* trailing null */ |
2026 | name_len *= 2; | |
2027 | ||
2028 | } else { /* BB improve the check for buffer overruns BB */ | |
2029 | name_len = strnlen(toName, PATH_MAX); | |
2030 | name_len++; /* trailing null */ | |
2031 | strncpy(pSMB->FileName, toName, name_len); | |
2032 | } | |
2033 | params = 6 + name_len; | |
2034 | pSMB->MaxSetupCount = 0; | |
2035 | pSMB->Reserved = 0; | |
2036 | pSMB->Flags = 0; | |
2037 | pSMB->Timeout = 0; | |
2038 | pSMB->Reserved2 = 0; | |
2039 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
2040 | InformationLevel) - 4; | |
2041 | offset = param_offset + params; | |
2042 | ||
2043 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
2044 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2045 | name_len_target = | |
b1a45695 | 2046 | cifsConvertToUCS((__le16 *) data_offset, fromName, PATH_MAX, |
737b758c | 2047 | nls_codepage, remap); |
1da177e4 LT |
2048 | name_len_target++; /* trailing null */ |
2049 | name_len_target *= 2; | |
2050 | } else { /* BB improve the check for buffer overruns BB */ | |
2051 | name_len_target = strnlen(fromName, PATH_MAX); | |
2052 | name_len_target++; /* trailing null */ | |
2053 | strncpy(data_offset, fromName, name_len_target); | |
2054 | } | |
2055 | ||
2056 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
2057 | /* BB find exact max on data count below from sess*/ | |
2058 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
2059 | pSMB->SetupCount = 1; | |
2060 | pSMB->Reserved3 = 0; | |
2061 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
2062 | byte_count = 3 /* pad */ + params + name_len_target; | |
2063 | pSMB->ParameterCount = cpu_to_le16(params); | |
2064 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
2065 | pSMB->DataCount = cpu_to_le16(name_len_target); | |
2066 | pSMB->TotalDataCount = pSMB->DataCount; | |
2067 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
2068 | pSMB->DataOffset = cpu_to_le16(offset); | |
2069 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_HLINK); | |
2070 | pSMB->Reserved4 = 0; | |
2071 | pSMB->hdr.smb_buf_length += byte_count; | |
2072 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2073 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2074 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 2075 | cifs_stats_inc(&tcon->num_hardlinks); |
1da177e4 LT |
2076 | if (rc) { |
2077 | cFYI(1, ("Send error in SetPathInfo (hard link) = %d", rc)); | |
2078 | } | |
2079 | ||
2080 | cifs_buf_release(pSMB); | |
2081 | if (rc == -EAGAIN) | |
2082 | goto createHardLinkRetry; | |
2083 | ||
2084 | return rc; | |
2085 | } | |
2086 | ||
2087 | int | |
2088 | CIFSCreateHardLink(const int xid, struct cifsTconInfo *tcon, | |
2089 | const char *fromName, const char *toName, | |
737b758c | 2090 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
2091 | { |
2092 | int rc = 0; | |
2093 | NT_RENAME_REQ *pSMB = NULL; | |
2094 | RENAME_RSP *pSMBr = NULL; | |
2095 | int bytes_returned; | |
2096 | int name_len, name_len2; | |
2097 | __u16 count; | |
2098 | ||
2099 | cFYI(1, ("In CIFSCreateHardLink")); | |
2100 | winCreateHardLinkRetry: | |
2101 | ||
2102 | rc = smb_init(SMB_COM_NT_RENAME, 4, tcon, (void **) &pSMB, | |
2103 | (void **) &pSMBr); | |
2104 | if (rc) | |
2105 | return rc; | |
2106 | ||
2107 | pSMB->SearchAttributes = | |
2108 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | | |
2109 | ATTR_DIRECTORY); | |
2110 | pSMB->Flags = cpu_to_le16(CREATE_HARD_LINK); | |
2111 | pSMB->ClusterCount = 0; | |
2112 | ||
2113 | pSMB->BufferFormat = 0x04; | |
2114 | ||
2115 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2116 | name_len = | |
b1a45695 | 2117 | cifsConvertToUCS((__le16 *) pSMB->OldFileName, fromName, |
737b758c | 2118 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2119 | name_len++; /* trailing null */ |
2120 | name_len *= 2; | |
2121 | pSMB->OldFileName[name_len] = 0; /* pad */ | |
2122 | pSMB->OldFileName[name_len + 1] = 0x04; | |
2123 | name_len2 = | |
b1a45695 | 2124 | cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2], |
737b758c | 2125 | toName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2126 | name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; |
2127 | name_len2 *= 2; /* convert to bytes */ | |
2128 | } else { /* BB improve the check for buffer overruns BB */ | |
2129 | name_len = strnlen(fromName, PATH_MAX); | |
2130 | name_len++; /* trailing null */ | |
2131 | strncpy(pSMB->OldFileName, fromName, name_len); | |
2132 | name_len2 = strnlen(toName, PATH_MAX); | |
2133 | name_len2++; /* trailing null */ | |
2134 | pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */ | |
2135 | strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2); | |
2136 | name_len2++; /* trailing null */ | |
2137 | name_len2++; /* signature byte */ | |
2138 | } | |
2139 | ||
2140 | count = 1 /* string type byte */ + name_len + name_len2; | |
2141 | pSMB->hdr.smb_buf_length += count; | |
2142 | pSMB->ByteCount = cpu_to_le16(count); | |
2143 | ||
2144 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2145 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 2146 | cifs_stats_inc(&tcon->num_hardlinks); |
1da177e4 LT |
2147 | if (rc) { |
2148 | cFYI(1, ("Send error in hard link (NT rename) = %d", rc)); | |
2149 | } | |
2150 | cifs_buf_release(pSMB); | |
2151 | if (rc == -EAGAIN) | |
2152 | goto winCreateHardLinkRetry; | |
2153 | ||
2154 | return rc; | |
2155 | } | |
2156 | ||
2157 | int | |
2158 | CIFSSMBUnixQuerySymLink(const int xid, struct cifsTconInfo *tcon, | |
2159 | const unsigned char *searchName, | |
2160 | char *symlinkinfo, const int buflen, | |
2161 | const struct nls_table *nls_codepage) | |
2162 | { | |
2163 | /* SMB_QUERY_FILE_UNIX_LINK */ | |
2164 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
2165 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
2166 | int rc = 0; | |
2167 | int bytes_returned; | |
2168 | int name_len; | |
2169 | __u16 params, byte_count; | |
2170 | ||
2171 | cFYI(1, ("In QPathSymLinkInfo (Unix) for path %s", searchName)); | |
2172 | ||
2173 | querySymLinkRetry: | |
2174 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2175 | (void **) &pSMBr); | |
2176 | if (rc) | |
2177 | return rc; | |
2178 | ||
2179 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2180 | name_len = | |
e89dc920 | 2181 | cifs_strtoUCS((__le16 *) pSMB->FileName, searchName, PATH_MAX |
1da177e4 LT |
2182 | /* find define for this maxpathcomponent */ |
2183 | , nls_codepage); | |
2184 | name_len++; /* trailing null */ | |
2185 | name_len *= 2; | |
2186 | } else { /* BB improve the check for buffer overruns BB */ | |
2187 | name_len = strnlen(searchName, PATH_MAX); | |
2188 | name_len++; /* trailing null */ | |
2189 | strncpy(pSMB->FileName, searchName, name_len); | |
2190 | } | |
2191 | ||
2192 | params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ; | |
2193 | pSMB->TotalDataCount = 0; | |
2194 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
2195 | /* BB find exact max data count below from sess structure BB */ | |
2196 | pSMB->MaxDataCount = cpu_to_le16(4000); | |
2197 | pSMB->MaxSetupCount = 0; | |
2198 | pSMB->Reserved = 0; | |
2199 | pSMB->Flags = 0; | |
2200 | pSMB->Timeout = 0; | |
2201 | pSMB->Reserved2 = 0; | |
2202 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
2203 | struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); | |
2204 | pSMB->DataCount = 0; | |
2205 | pSMB->DataOffset = 0; | |
2206 | pSMB->SetupCount = 1; | |
2207 | pSMB->Reserved3 = 0; | |
2208 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
2209 | byte_count = params + 1 /* pad */ ; | |
2210 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
2211 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2212 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_UNIX_LINK); | |
2213 | pSMB->Reserved4 = 0; | |
2214 | pSMB->hdr.smb_buf_length += byte_count; | |
2215 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2216 | ||
2217 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2218 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2219 | if (rc) { | |
2220 | cFYI(1, ("Send error in QuerySymLinkInfo = %d", rc)); | |
2221 | } else { | |
2222 | /* decode response */ | |
2223 | ||
2224 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
2225 | if (rc || (pSMBr->ByteCount < 2)) | |
2226 | /* BB also check enough total bytes returned */ | |
2227 | rc = -EIO; /* bad smb */ | |
2228 | else { | |
2229 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
2230 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); | |
2231 | ||
2232 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2233 | name_len = UniStrnlen((wchar_t *) ((char *) | |
2234 | &pSMBr->hdr.Protocol +data_offset), | |
2235 | min_t(const int, buflen,count) / 2); | |
737b758c | 2236 | /* BB FIXME investigate remapping reserved chars here */ |
1da177e4 | 2237 | cifs_strfromUCS_le(symlinkinfo, |
e89dc920 | 2238 | (__le16 *) ((char *)&pSMBr->hdr.Protocol + |
1da177e4 LT |
2239 | data_offset), |
2240 | name_len, nls_codepage); | |
2241 | } else { | |
2242 | strncpy(symlinkinfo, | |
2243 | (char *) &pSMBr->hdr.Protocol + | |
2244 | data_offset, | |
2245 | min_t(const int, buflen, count)); | |
2246 | } | |
2247 | symlinkinfo[buflen] = 0; | |
2248 | /* just in case so calling code does not go off the end of buffer */ | |
2249 | } | |
2250 | } | |
2251 | cifs_buf_release(pSMB); | |
2252 | if (rc == -EAGAIN) | |
2253 | goto querySymLinkRetry; | |
2254 | return rc; | |
2255 | } | |
2256 | ||
0a4b92c0 SF |
2257 | /* Initialize NT TRANSACT SMB into small smb request buffer. |
2258 | This assumes that all NT TRANSACTS that we init here have | |
2259 | total parm and data under about 400 bytes (to fit in small cifs | |
2260 | buffer size), which is the case so far, it easily fits. NB: | |
2261 | Setup words themselves and ByteCount | |
2262 | MaxSetupCount (size of returned setup area) and | |
2263 | MaxParameterCount (returned parms size) must be set by caller */ | |
2264 | static int | |
2265 | smb_init_ntransact(const __u16 sub_command, const int setup_count, | |
2266 | const int parm_len, struct cifsTconInfo *tcon, | |
2267 | void ** ret_buf) | |
2268 | { | |
2269 | int rc; | |
2270 | __u32 temp_offset; | |
2271 | struct smb_com_ntransact_req * pSMB; | |
2272 | ||
2273 | rc = small_smb_init(SMB_COM_NT_TRANSACT, 19 + setup_count, tcon, | |
2274 | (void **)&pSMB); | |
2275 | if (rc) | |
2276 | return rc; | |
2277 | *ret_buf = (void *)pSMB; | |
2278 | pSMB->Reserved = 0; | |
2279 | pSMB->TotalParameterCount = cpu_to_le32(parm_len); | |
2280 | pSMB->TotalDataCount = 0; | |
2281 | pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf - | |
2282 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
2283 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2284 | pSMB->DataCount = pSMB->TotalDataCount; | |
2285 | temp_offset = offsetof(struct smb_com_ntransact_req, Parms) + | |
2286 | (setup_count * 2) - 4 /* for rfc1001 length itself */; | |
2287 | pSMB->ParameterOffset = cpu_to_le32(temp_offset); | |
2288 | pSMB->DataOffset = cpu_to_le32(temp_offset + parm_len); | |
2289 | pSMB->SetupCount = setup_count; /* no need to le convert byte fields */ | |
2290 | pSMB->SubCommand = cpu_to_le16(sub_command); | |
2291 | return 0; | |
2292 | } | |
2293 | ||
2294 | static int | |
2295 | validate_ntransact(char * buf, char ** ppparm, char ** ppdata, | |
2296 | int * pdatalen, int * pparmlen) | |
2297 | { | |
2298 | char * end_of_smb; | |
2299 | __u32 data_count, data_offset, parm_count, parm_offset; | |
2300 | struct smb_com_ntransact_rsp * pSMBr; | |
2301 | ||
2302 | if(buf == NULL) | |
2303 | return -EINVAL; | |
2304 | ||
2305 | pSMBr = (struct smb_com_ntransact_rsp *)buf; | |
2306 | ||
2307 | /* ByteCount was converted from little endian in SendReceive */ | |
2308 | end_of_smb = 2 /* sizeof byte count */ + pSMBr->ByteCount + | |
2309 | (char *)&pSMBr->ByteCount; | |
2310 | ||
2311 | ||
2312 | data_offset = le32_to_cpu(pSMBr->DataOffset); | |
2313 | data_count = le32_to_cpu(pSMBr->DataCount); | |
2314 | parm_offset = le32_to_cpu(pSMBr->ParameterOffset); | |
2315 | parm_count = le32_to_cpu(pSMBr->ParameterCount); | |
2316 | ||
2317 | *ppparm = (char *)&pSMBr->hdr.Protocol + parm_offset; | |
2318 | *ppdata = (char *)&pSMBr->hdr.Protocol + data_offset; | |
2319 | ||
2320 | /* should we also check that parm and data areas do not overlap? */ | |
2321 | if(*ppparm > end_of_smb) { | |
2322 | cFYI(1,("parms start after end of smb")); | |
2323 | return -EINVAL; | |
2324 | } else if(parm_count + *ppparm > end_of_smb) { | |
2325 | cFYI(1,("parm end after end of smb")); | |
2326 | return -EINVAL; | |
2327 | } else if(*ppdata > end_of_smb) { | |
2328 | cFYI(1,("data starts after end of smb")); | |
2329 | return -EINVAL; | |
2330 | } else if(data_count + *ppdata > end_of_smb) { | |
2331 | cFYI(1,("data %p + count %d (%p) ends after end of smb %p start %p", | |
2332 | *ppdata, data_count, (data_count + *ppdata), end_of_smb, pSMBr)); /* BB FIXME */ | |
2333 | return -EINVAL; | |
2334 | } else if(parm_count + data_count > pSMBr->ByteCount) { | |
2335 | cFYI(1,("parm count and data count larger than SMB")); | |
2336 | return -EINVAL; | |
2337 | } | |
2338 | return 0; | |
2339 | } | |
2340 | ||
1da177e4 LT |
2341 | int |
2342 | CIFSSMBQueryReparseLinkInfo(const int xid, struct cifsTconInfo *tcon, | |
2343 | const unsigned char *searchName, | |
2344 | char *symlinkinfo, const int buflen,__u16 fid, | |
2345 | const struct nls_table *nls_codepage) | |
2346 | { | |
2347 | int rc = 0; | |
2348 | int bytes_returned; | |
2349 | int name_len; | |
2350 | struct smb_com_transaction_ioctl_req * pSMB; | |
2351 | struct smb_com_transaction_ioctl_rsp * pSMBr; | |
2352 | ||
2353 | cFYI(1, ("In Windows reparse style QueryLink for path %s", searchName)); | |
2354 | rc = smb_init(SMB_COM_NT_TRANSACT, 23, tcon, (void **) &pSMB, | |
2355 | (void **) &pSMBr); | |
2356 | if (rc) | |
2357 | return rc; | |
2358 | ||
2359 | pSMB->TotalParameterCount = 0 ; | |
2360 | pSMB->TotalDataCount = 0; | |
2361 | pSMB->MaxParameterCount = cpu_to_le32(2); | |
2362 | /* BB find exact data count max from sess structure BB */ | |
0a4b92c0 SF |
2363 | pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf - |
2364 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
1da177e4 LT |
2365 | pSMB->MaxSetupCount = 4; |
2366 | pSMB->Reserved = 0; | |
2367 | pSMB->ParameterOffset = 0; | |
2368 | pSMB->DataCount = 0; | |
2369 | pSMB->DataOffset = 0; | |
2370 | pSMB->SetupCount = 4; | |
2371 | pSMB->SubCommand = cpu_to_le16(NT_TRANSACT_IOCTL); | |
2372 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2373 | pSMB->FunctionCode = cpu_to_le32(FSCTL_GET_REPARSE_POINT); | |
2374 | pSMB->IsFsctl = 1; /* FSCTL */ | |
2375 | pSMB->IsRootFlag = 0; | |
2376 | pSMB->Fid = fid; /* file handle always le */ | |
2377 | pSMB->ByteCount = 0; | |
2378 | ||
2379 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2380 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2381 | if (rc) { | |
2382 | cFYI(1, ("Send error in QueryReparseLinkInfo = %d", rc)); | |
2383 | } else { /* decode response */ | |
2384 | __u32 data_offset = le32_to_cpu(pSMBr->DataOffset); | |
2385 | __u32 data_count = le32_to_cpu(pSMBr->DataCount); | |
2386 | if ((pSMBr->ByteCount < 2) || (data_offset > 512)) | |
2387 | /* BB also check enough total bytes returned */ | |
2388 | rc = -EIO; /* bad smb */ | |
2389 | else { | |
2390 | if(data_count && (data_count < 2048)) { | |
0a4b92c0 SF |
2391 | char * end_of_smb = 2 /* sizeof byte count */ + |
2392 | pSMBr->ByteCount + | |
2393 | (char *)&pSMBr->ByteCount; | |
1da177e4 LT |
2394 | |
2395 | struct reparse_data * reparse_buf = (struct reparse_data *) | |
2396 | ((char *)&pSMBr->hdr.Protocol + data_offset); | |
2397 | if((char*)reparse_buf >= end_of_smb) { | |
2398 | rc = -EIO; | |
2399 | goto qreparse_out; | |
2400 | } | |
2401 | if((reparse_buf->LinkNamesBuf + | |
2402 | reparse_buf->TargetNameOffset + | |
2403 | reparse_buf->TargetNameLen) > | |
2404 | end_of_smb) { | |
2405 | cFYI(1,("reparse buf extended beyond SMB")); | |
2406 | rc = -EIO; | |
2407 | goto qreparse_out; | |
2408 | } | |
2409 | ||
2410 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2411 | name_len = UniStrnlen((wchar_t *) | |
2412 | (reparse_buf->LinkNamesBuf + | |
2413 | reparse_buf->TargetNameOffset), | |
2414 | min(buflen/2, reparse_buf->TargetNameLen / 2)); | |
2415 | cifs_strfromUCS_le(symlinkinfo, | |
e89dc920 | 2416 | (__le16 *) (reparse_buf->LinkNamesBuf + |
1da177e4 LT |
2417 | reparse_buf->TargetNameOffset), |
2418 | name_len, nls_codepage); | |
2419 | } else { /* ASCII names */ | |
2420 | strncpy(symlinkinfo,reparse_buf->LinkNamesBuf + | |
2421 | reparse_buf->TargetNameOffset, | |
2422 | min_t(const int, buflen, reparse_buf->TargetNameLen)); | |
2423 | } | |
2424 | } else { | |
2425 | rc = -EIO; | |
2426 | cFYI(1,("Invalid return data count on get reparse info ioctl")); | |
2427 | } | |
2428 | symlinkinfo[buflen] = 0; /* just in case so the caller | |
2429 | does not go off the end of the buffer */ | |
26a21b98 | 2430 | cFYI(1,("readlink result - %s",symlinkinfo)); |
1da177e4 LT |
2431 | } |
2432 | } | |
2433 | qreparse_out: | |
4a6d87f1 | 2434 | cifs_buf_release(pSMB); |
1da177e4 LT |
2435 | |
2436 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
2437 | since file handle passed in no longer valid */ | |
2438 | ||
2439 | return rc; | |
2440 | } | |
2441 | ||
2442 | #ifdef CONFIG_CIFS_POSIX | |
2443 | ||
2444 | /*Convert an Access Control Entry from wire format to local POSIX xattr format*/ | |
2445 | static void cifs_convert_ace(posix_acl_xattr_entry * ace, struct cifs_posix_ace * cifs_ace) | |
2446 | { | |
2447 | /* u8 cifs fields do not need le conversion */ | |
ff7feac9 SF |
2448 | ace->e_perm = cpu_to_le16(cifs_ace->cifs_e_perm); |
2449 | ace->e_tag = cpu_to_le16(cifs_ace->cifs_e_tag); | |
2450 | ace->e_id = cpu_to_le32(le64_to_cpu(cifs_ace->cifs_uid)); | |
1da177e4 LT |
2451 | /* cFYI(1,("perm %d tag %d id %d",ace->e_perm,ace->e_tag,ace->e_id)); */ |
2452 | ||
2453 | return; | |
2454 | } | |
2455 | ||
2456 | /* Convert ACL from CIFS POSIX wire format to local Linux POSIX ACL xattr */ | |
737b758c SF |
2457 | static int cifs_copy_posix_acl(char * trgt,char * src, const int buflen, |
2458 | const int acl_type,const int size_of_data_area) | |
1da177e4 LT |
2459 | { |
2460 | int size = 0; | |
2461 | int i; | |
2462 | __u16 count; | |
2463 | struct cifs_posix_ace * pACE; | |
2464 | struct cifs_posix_acl * cifs_acl = (struct cifs_posix_acl *)src; | |
2465 | posix_acl_xattr_header * local_acl = (posix_acl_xattr_header *)trgt; | |
2466 | ||
2467 | if (le16_to_cpu(cifs_acl->version) != CIFS_ACL_VERSION) | |
2468 | return -EOPNOTSUPP; | |
2469 | ||
2470 | if(acl_type & ACL_TYPE_ACCESS) { | |
2471 | count = le16_to_cpu(cifs_acl->access_entry_count); | |
2472 | pACE = &cifs_acl->ace_array[0]; | |
2473 | size = sizeof(struct cifs_posix_acl); | |
2474 | size += sizeof(struct cifs_posix_ace) * count; | |
2475 | /* check if we would go beyond end of SMB */ | |
2476 | if(size_of_data_area < size) { | |
2477 | cFYI(1,("bad CIFS POSIX ACL size %d vs. %d",size_of_data_area,size)); | |
2478 | return -EINVAL; | |
2479 | } | |
2480 | } else if(acl_type & ACL_TYPE_DEFAULT) { | |
2481 | count = le16_to_cpu(cifs_acl->access_entry_count); | |
2482 | size = sizeof(struct cifs_posix_acl); | |
2483 | size += sizeof(struct cifs_posix_ace) * count; | |
2484 | /* skip past access ACEs to get to default ACEs */ | |
2485 | pACE = &cifs_acl->ace_array[count]; | |
2486 | count = le16_to_cpu(cifs_acl->default_entry_count); | |
2487 | size += sizeof(struct cifs_posix_ace) * count; | |
2488 | /* check if we would go beyond end of SMB */ | |
2489 | if(size_of_data_area < size) | |
2490 | return -EINVAL; | |
2491 | } else { | |
2492 | /* illegal type */ | |
2493 | return -EINVAL; | |
2494 | } | |
2495 | ||
2496 | size = posix_acl_xattr_size(count); | |
2497 | if((buflen == 0) || (local_acl == NULL)) { | |
2498 | /* used to query ACL EA size */ | |
2499 | } else if(size > buflen) { | |
2500 | return -ERANGE; | |
2501 | } else /* buffer big enough */ { | |
ff7feac9 | 2502 | local_acl->a_version = cpu_to_le32(POSIX_ACL_XATTR_VERSION); |
1da177e4 LT |
2503 | for(i = 0;i < count ;i++) { |
2504 | cifs_convert_ace(&local_acl->a_entries[i],pACE); | |
2505 | pACE ++; | |
2506 | } | |
2507 | } | |
2508 | return size; | |
2509 | } | |
2510 | ||
2511 | static __u16 convert_ace_to_cifs_ace(struct cifs_posix_ace * cifs_ace, | |
2512 | const posix_acl_xattr_entry * local_ace) | |
2513 | { | |
2514 | __u16 rc = 0; /* 0 = ACL converted ok */ | |
2515 | ||
ff7feac9 SF |
2516 | cifs_ace->cifs_e_perm = le16_to_cpu(local_ace->e_perm); |
2517 | cifs_ace->cifs_e_tag = le16_to_cpu(local_ace->e_tag); | |
1da177e4 | 2518 | /* BB is there a better way to handle the large uid? */ |
ff7feac9 | 2519 | if(local_ace->e_id == cpu_to_le32(-1)) { |
1da177e4 LT |
2520 | /* Probably no need to le convert -1 on any arch but can not hurt */ |
2521 | cifs_ace->cifs_uid = cpu_to_le64(-1); | |
2522 | } else | |
ff7feac9 | 2523 | cifs_ace->cifs_uid = cpu_to_le64(le32_to_cpu(local_ace->e_id)); |
1da177e4 LT |
2524 | /*cFYI(1,("perm %d tag %d id %d",ace->e_perm,ace->e_tag,ace->e_id));*/ |
2525 | return rc; | |
2526 | } | |
2527 | ||
2528 | /* Convert ACL from local Linux POSIX xattr to CIFS POSIX ACL wire format */ | |
2529 | static __u16 ACL_to_cifs_posix(char * parm_data,const char * pACL,const int buflen, | |
2530 | const int acl_type) | |
2531 | { | |
2532 | __u16 rc = 0; | |
2533 | struct cifs_posix_acl * cifs_acl = (struct cifs_posix_acl *)parm_data; | |
2534 | posix_acl_xattr_header * local_acl = (posix_acl_xattr_header *)pACL; | |
2535 | int count; | |
2536 | int i; | |
2537 | ||
2538 | if((buflen == 0) || (pACL == NULL) || (cifs_acl == NULL)) | |
2539 | return 0; | |
2540 | ||
2541 | count = posix_acl_xattr_count((size_t)buflen); | |
2542 | cFYI(1,("setting acl with %d entries from buf of length %d and version of %d", | |
ff7feac9 SF |
2543 | count, buflen, le32_to_cpu(local_acl->a_version))); |
2544 | if(le32_to_cpu(local_acl->a_version) != 2) { | |
2545 | cFYI(1,("unknown POSIX ACL version %d", | |
2546 | le32_to_cpu(local_acl->a_version))); | |
1da177e4 LT |
2547 | return 0; |
2548 | } | |
2549 | cifs_acl->version = cpu_to_le16(1); | |
2550 | if(acl_type == ACL_TYPE_ACCESS) | |
ff7feac9 | 2551 | cifs_acl->access_entry_count = cpu_to_le16(count); |
1da177e4 | 2552 | else if(acl_type == ACL_TYPE_DEFAULT) |
ff7feac9 | 2553 | cifs_acl->default_entry_count = cpu_to_le16(count); |
1da177e4 LT |
2554 | else { |
2555 | cFYI(1,("unknown ACL type %d",acl_type)); | |
2556 | return 0; | |
2557 | } | |
2558 | for(i=0;i<count;i++) { | |
2559 | rc = convert_ace_to_cifs_ace(&cifs_acl->ace_array[i], | |
2560 | &local_acl->a_entries[i]); | |
2561 | if(rc != 0) { | |
2562 | /* ACE not converted */ | |
2563 | break; | |
2564 | } | |
2565 | } | |
2566 | if(rc == 0) { | |
2567 | rc = (__u16)(count * sizeof(struct cifs_posix_ace)); | |
2568 | rc += sizeof(struct cifs_posix_acl); | |
2569 | /* BB add check to make sure ACL does not overflow SMB */ | |
2570 | } | |
2571 | return rc; | |
2572 | } | |
2573 | ||
2574 | int | |
2575 | CIFSSMBGetPosixACL(const int xid, struct cifsTconInfo *tcon, | |
2576 | const unsigned char *searchName, | |
2577 | char *acl_inf, const int buflen, const int acl_type, | |
737b758c | 2578 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
2579 | { |
2580 | /* SMB_QUERY_POSIX_ACL */ | |
2581 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
2582 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
2583 | int rc = 0; | |
2584 | int bytes_returned; | |
2585 | int name_len; | |
2586 | __u16 params, byte_count; | |
2587 | ||
2588 | cFYI(1, ("In GetPosixACL (Unix) for path %s", searchName)); | |
2589 | ||
2590 | queryAclRetry: | |
2591 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2592 | (void **) &pSMBr); | |
2593 | if (rc) | |
2594 | return rc; | |
2595 | ||
2596 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2597 | name_len = | |
b1a45695 | 2598 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 2599 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2600 | name_len++; /* trailing null */ |
2601 | name_len *= 2; | |
2602 | pSMB->FileName[name_len] = 0; | |
2603 | pSMB->FileName[name_len+1] = 0; | |
2604 | } else { /* BB improve the check for buffer overruns BB */ | |
2605 | name_len = strnlen(searchName, PATH_MAX); | |
2606 | name_len++; /* trailing null */ | |
2607 | strncpy(pSMB->FileName, searchName, name_len); | |
2608 | } | |
2609 | ||
2610 | params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ; | |
2611 | pSMB->TotalDataCount = 0; | |
2612 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
2613 | /* BB find exact max data count below from sess structure BB */ | |
2614 | pSMB->MaxDataCount = cpu_to_le16(4000); | |
2615 | pSMB->MaxSetupCount = 0; | |
2616 | pSMB->Reserved = 0; | |
2617 | pSMB->Flags = 0; | |
2618 | pSMB->Timeout = 0; | |
2619 | pSMB->Reserved2 = 0; | |
2620 | pSMB->ParameterOffset = cpu_to_le16( | |
2621 | offsetof(struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); | |
2622 | pSMB->DataCount = 0; | |
2623 | pSMB->DataOffset = 0; | |
2624 | pSMB->SetupCount = 1; | |
2625 | pSMB->Reserved3 = 0; | |
2626 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
2627 | byte_count = params + 1 /* pad */ ; | |
2628 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
2629 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2630 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_POSIX_ACL); | |
2631 | pSMB->Reserved4 = 0; | |
2632 | pSMB->hdr.smb_buf_length += byte_count; | |
2633 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2634 | ||
2635 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2636 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
0a4b92c0 | 2637 | cifs_stats_inc(&tcon->num_acl_get); |
1da177e4 LT |
2638 | if (rc) { |
2639 | cFYI(1, ("Send error in Query POSIX ACL = %d", rc)); | |
2640 | } else { | |
2641 | /* decode response */ | |
2642 | ||
2643 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
2644 | if (rc || (pSMBr->ByteCount < 2)) | |
2645 | /* BB also check enough total bytes returned */ | |
2646 | rc = -EIO; /* bad smb */ | |
2647 | else { | |
2648 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
2649 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); | |
2650 | rc = cifs_copy_posix_acl(acl_inf, | |
2651 | (char *)&pSMBr->hdr.Protocol+data_offset, | |
2652 | buflen,acl_type,count); | |
2653 | } | |
2654 | } | |
2655 | cifs_buf_release(pSMB); | |
2656 | if (rc == -EAGAIN) | |
2657 | goto queryAclRetry; | |
2658 | return rc; | |
2659 | } | |
2660 | ||
2661 | int | |
2662 | CIFSSMBSetPosixACL(const int xid, struct cifsTconInfo *tcon, | |
2663 | const unsigned char *fileName, | |
737b758c SF |
2664 | const char *local_acl, const int buflen, |
2665 | const int acl_type, | |
2666 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
2667 | { |
2668 | struct smb_com_transaction2_spi_req *pSMB = NULL; | |
2669 | struct smb_com_transaction2_spi_rsp *pSMBr = NULL; | |
2670 | char *parm_data; | |
2671 | int name_len; | |
2672 | int rc = 0; | |
2673 | int bytes_returned = 0; | |
2674 | __u16 params, byte_count, data_count, param_offset, offset; | |
2675 | ||
2676 | cFYI(1, ("In SetPosixACL (Unix) for path %s", fileName)); | |
2677 | setAclRetry: | |
2678 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2679 | (void **) &pSMBr); | |
2680 | if (rc) | |
2681 | return rc; | |
2682 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2683 | name_len = | |
b1a45695 | 2684 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 2685 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2686 | name_len++; /* trailing null */ |
2687 | name_len *= 2; | |
2688 | } else { /* BB improve the check for buffer overruns BB */ | |
2689 | name_len = strnlen(fileName, PATH_MAX); | |
2690 | name_len++; /* trailing null */ | |
2691 | strncpy(pSMB->FileName, fileName, name_len); | |
2692 | } | |
2693 | params = 6 + name_len; | |
2694 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
2695 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB size from sess */ | |
2696 | pSMB->MaxSetupCount = 0; | |
2697 | pSMB->Reserved = 0; | |
2698 | pSMB->Flags = 0; | |
2699 | pSMB->Timeout = 0; | |
2700 | pSMB->Reserved2 = 0; | |
2701 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
2702 | InformationLevel) - 4; | |
2703 | offset = param_offset + params; | |
2704 | parm_data = ((char *) &pSMB->hdr.Protocol) + offset; | |
2705 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
2706 | ||
2707 | /* convert to on the wire format for POSIX ACL */ | |
2708 | data_count = ACL_to_cifs_posix(parm_data,local_acl,buflen,acl_type); | |
2709 | ||
2710 | if(data_count == 0) { | |
2711 | rc = -EOPNOTSUPP; | |
2712 | goto setACLerrorExit; | |
2713 | } | |
2714 | pSMB->DataOffset = cpu_to_le16(offset); | |
2715 | pSMB->SetupCount = 1; | |
2716 | pSMB->Reserved3 = 0; | |
2717 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
2718 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_POSIX_ACL); | |
2719 | byte_count = 3 /* pad */ + params + data_count; | |
2720 | pSMB->DataCount = cpu_to_le16(data_count); | |
2721 | pSMB->TotalDataCount = pSMB->DataCount; | |
2722 | pSMB->ParameterCount = cpu_to_le16(params); | |
2723 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
2724 | pSMB->Reserved4 = 0; | |
2725 | pSMB->hdr.smb_buf_length += byte_count; | |
2726 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2727 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2728 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2729 | if (rc) { | |
2730 | cFYI(1, ("Set POSIX ACL returned %d", rc)); | |
2731 | } | |
2732 | ||
2733 | setACLerrorExit: | |
2734 | cifs_buf_release(pSMB); | |
2735 | if (rc == -EAGAIN) | |
2736 | goto setAclRetry; | |
2737 | return rc; | |
2738 | } | |
2739 | ||
f654bac2 SF |
2740 | /* BB fix tabs in this function FIXME BB */ |
2741 | int | |
2742 | CIFSGetExtAttr(const int xid, struct cifsTconInfo *tcon, | |
2743 | const int netfid, __u64 * pExtAttrBits, __u64 *pMask) | |
2744 | { | |
2745 | int rc = 0; | |
2746 | struct smb_t2_qfi_req *pSMB = NULL; | |
2747 | struct smb_t2_qfi_rsp *pSMBr = NULL; | |
2748 | int bytes_returned; | |
2749 | __u16 params, byte_count; | |
2750 | ||
2751 | cFYI(1,("In GetExtAttr")); | |
2752 | if(tcon == NULL) | |
2753 | return -ENODEV; | |
2754 | ||
2755 | GetExtAttrRetry: | |
2756 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2757 | (void **) &pSMBr); | |
2758 | if (rc) | |
2759 | return rc; | |
2760 | ||
c67593a0 | 2761 | params = 2 /* level */ +2 /* fid */; |
f654bac2 | 2762 | pSMB->t2.TotalDataCount = 0; |
c67593a0 | 2763 | pSMB->t2.MaxParameterCount = cpu_to_le16(4); |
f654bac2 SF |
2764 | /* BB find exact max data count below from sess structure BB */ |
2765 | pSMB->t2.MaxDataCount = cpu_to_le16(4000); | |
2766 | pSMB->t2.MaxSetupCount = 0; | |
2767 | pSMB->t2.Reserved = 0; | |
2768 | pSMB->t2.Flags = 0; | |
2769 | pSMB->t2.Timeout = 0; | |
2770 | pSMB->t2.Reserved2 = 0; | |
c67593a0 SF |
2771 | pSMB->t2.ParameterOffset = cpu_to_le16(offsetof(struct smb_t2_qfi_req, |
2772 | Fid) - 4); | |
f654bac2 SF |
2773 | pSMB->t2.DataCount = 0; |
2774 | pSMB->t2.DataOffset = 0; | |
2775 | pSMB->t2.SetupCount = 1; | |
2776 | pSMB->t2.Reserved3 = 0; | |
2777 | pSMB->t2.SubCommand = cpu_to_le16(TRANS2_QUERY_FILE_INFORMATION); | |
c67593a0 | 2778 | byte_count = params + 1 /* pad */ ; |
f654bac2 SF |
2779 | pSMB->t2.TotalParameterCount = cpu_to_le16(params); |
2780 | pSMB->t2.ParameterCount = pSMB->t2.TotalParameterCount; | |
2781 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_ATTR_FLAGS); | |
c67593a0 | 2782 | pSMB->Pad = 0; |
f654bac2 SF |
2783 | pSMB->Fid = netfid; |
2784 | pSMB->hdr.smb_buf_length += byte_count; | |
2785 | pSMB->t2.ByteCount = cpu_to_le16(byte_count); | |
2786 | ||
2787 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2788 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2789 | if (rc) { | |
2790 | cFYI(1, ("error %d in GetExtAttr", rc)); | |
2791 | } else { | |
2792 | /* decode response */ | |
2793 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
2794 | if (rc || (pSMBr->ByteCount < 2)) | |
2795 | /* BB also check enough total bytes returned */ | |
2796 | /* If rc should we check for EOPNOSUPP and | |
2797 | disable the srvino flag? or in caller? */ | |
2798 | rc = -EIO; /* bad smb */ | |
2799 | else { | |
2800 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
2801 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); | |
2802 | struct file_chattr_info * pfinfo; | |
2803 | /* BB Do we need a cast or hash here ? */ | |
2804 | if(count != 16) { | |
2805 | cFYI(1, ("Illegal size ret in GetExtAttr")); | |
2806 | rc = -EIO; | |
2807 | goto GetExtAttrOut; | |
2808 | } | |
2809 | pfinfo = (struct file_chattr_info *) | |
2810 | (data_offset + (char *) &pSMBr->hdr.Protocol); | |
2811 | *pExtAttrBits = le64_to_cpu(pfinfo->mode); | |
2812 | *pMask = le64_to_cpu(pfinfo->mask); | |
2813 | } | |
2814 | } | |
2815 | GetExtAttrOut: | |
2816 | cifs_buf_release(pSMB); | |
2817 | if (rc == -EAGAIN) | |
2818 | goto GetExtAttrRetry; | |
2819 | return rc; | |
2820 | } | |
2821 | ||
2822 | ||
2823 | #endif /* CONFIG_POSIX */ | |
1da177e4 | 2824 | |
eeac8047 SF |
2825 | |
2826 | /* security id for everyone */ | |
c5a69d57 | 2827 | static const struct cifs_sid sid_everyone = |
2cd646a2 | 2828 | {1, 1, {0, 0, 0, 0, 0, 0}, {0, 0, 0, 0}}; |
eeac8047 | 2829 | /* group users */ |
c5a69d57 | 2830 | static const struct cifs_sid sid_user = |
2cd646a2 | 2831 | {1, 2 , {0, 0, 0, 0, 0, 5}, {32, 545, 0, 0}}; |
eeac8047 | 2832 | |
0a4b92c0 | 2833 | /* Convert CIFS ACL to POSIX form */ |
eeac8047 | 2834 | static int parse_sec_desc(struct cifs_sid * psec_desc, int acl_len) |
0a4b92c0 | 2835 | { |
0a4b92c0 SF |
2836 | return 0; |
2837 | } | |
2838 | ||
2839 | /* Get Security Descriptor (by handle) from remote server for a file or dir */ | |
2840 | int | |
2841 | CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid, | |
2842 | /* BB fix up return info */ char *acl_inf, const int buflen, | |
2843 | const int acl_type /* ACCESS/DEFAULT not sure implication */) | |
2844 | { | |
2845 | int rc = 0; | |
2846 | int buf_type = 0; | |
2847 | QUERY_SEC_DESC_REQ * pSMB; | |
2848 | struct kvec iov[1]; | |
2849 | ||
2850 | cFYI(1, ("GetCifsACL")); | |
2851 | ||
2852 | rc = smb_init_ntransact(NT_TRANSACT_QUERY_SECURITY_DESC, 0, | |
2853 | 8 /* parm len */, tcon, (void **) &pSMB); | |
2854 | if (rc) | |
2855 | return rc; | |
2856 | ||
2857 | pSMB->MaxParameterCount = cpu_to_le32(4); | |
2858 | /* BB TEST with big acls that might need to be e.g. larger than 16K */ | |
2859 | pSMB->MaxSetupCount = 0; | |
2860 | pSMB->Fid = fid; /* file handle always le */ | |
2861 | pSMB->AclFlags = cpu_to_le32(CIFS_ACL_OWNER | CIFS_ACL_GROUP | | |
2862 | CIFS_ACL_DACL); | |
2863 | pSMB->ByteCount = cpu_to_le16(11); /* 3 bytes pad + 8 bytes parm */ | |
2864 | pSMB->hdr.smb_buf_length += 11; | |
2865 | iov[0].iov_base = (char *)pSMB; | |
2866 | iov[0].iov_len = pSMB->hdr.smb_buf_length + 4; | |
2867 | ||
2868 | rc = SendReceive2(xid, tcon->ses, iov, 1 /* num iovec */, &buf_type, 0); | |
2869 | cifs_stats_inc(&tcon->num_acl_get); | |
2870 | if (rc) { | |
2871 | cFYI(1, ("Send error in QuerySecDesc = %d", rc)); | |
2872 | } else { /* decode response */ | |
d41f084a | 2873 | struct cifs_sid * psec_desc; |
0a4b92c0 SF |
2874 | __le32 * parm; |
2875 | int parm_len; | |
2876 | int data_len; | |
2877 | int acl_len; | |
2878 | struct smb_com_ntransact_rsp * pSMBr; | |
2879 | ||
2880 | /* validate_nttransact */ | |
2881 | rc = validate_ntransact(iov[0].iov_base, (char **)&parm, | |
2882 | (char **)&psec_desc, | |
2883 | &parm_len, &data_len); | |
2884 | ||
2885 | if(rc) | |
2886 | goto qsec_out; | |
2887 | pSMBr = (struct smb_com_ntransact_rsp *)iov[0].iov_base; | |
2888 | ||
2889 | cERROR(1,("smb %p parm %p data %p",pSMBr,parm,psec_desc)); /* BB removeme BB */ | |
2890 | ||
2891 | if (le32_to_cpu(pSMBr->ParameterCount) != 4) { | |
2892 | rc = -EIO; /* bad smb */ | |
2893 | goto qsec_out; | |
2894 | } | |
2895 | ||
2896 | /* BB check that data area is minimum length and as big as acl_len */ | |
2897 | ||
2898 | acl_len = le32_to_cpu(*(__le32 *)parm); | |
2899 | /* BB check if(acl_len > bufsize) */ | |
2900 | ||
2901 | parse_sec_desc(psec_desc, acl_len); | |
2902 | } | |
2903 | qsec_out: | |
2904 | if(buf_type == CIFS_SMALL_BUFFER) | |
2905 | cifs_small_buf_release(iov[0].iov_base); | |
2906 | else if(buf_type == CIFS_LARGE_BUFFER) | |
2907 | cifs_buf_release(iov[0].iov_base); | |
4b8f930f | 2908 | /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */ |
0a4b92c0 SF |
2909 | return rc; |
2910 | } | |
2911 | ||
6b8edfe0 SF |
2912 | /* Legacy Query Path Information call for lookup to old servers such |
2913 | as Win9x/WinME */ | |
2914 | int SMBQueryInformation(const int xid, struct cifsTconInfo *tcon, | |
2915 | const unsigned char *searchName, | |
2916 | FILE_ALL_INFO * pFinfo, | |
2917 | const struct nls_table *nls_codepage, int remap) | |
2918 | { | |
2919 | QUERY_INFORMATION_REQ * pSMB; | |
2920 | QUERY_INFORMATION_RSP * pSMBr; | |
2921 | int rc = 0; | |
2922 | int bytes_returned; | |
2923 | int name_len; | |
2924 | ||
2925 | cFYI(1, ("In SMBQPath path %s", searchName)); | |
2926 | QInfRetry: | |
2927 | rc = smb_init(SMB_COM_QUERY_INFORMATION, 0, tcon, (void **) &pSMB, | |
2928 | (void **) &pSMBr); | |
2929 | if (rc) | |
2930 | return rc; | |
2931 | ||
2932 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2933 | name_len = | |
2934 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, | |
2935 | PATH_MAX, nls_codepage, remap); | |
2936 | name_len++; /* trailing null */ | |
2937 | name_len *= 2; | |
2938 | } else { | |
2939 | name_len = strnlen(searchName, PATH_MAX); | |
2940 | name_len++; /* trailing null */ | |
2941 | strncpy(pSMB->FileName, searchName, name_len); | |
2942 | } | |
2943 | pSMB->BufferFormat = 0x04; | |
2944 | name_len++; /* account for buffer type byte */ | |
2945 | pSMB->hdr.smb_buf_length += (__u16) name_len; | |
2946 | pSMB->ByteCount = cpu_to_le16(name_len); | |
2947 | ||
2948 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2949 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2950 | if (rc) { | |
2951 | cFYI(1, ("Send error in QueryInfo = %d", rc)); | |
2952 | } else if (pFinfo) { /* decode response */ | |
1bd5bbcb SF |
2953 | struct timespec ts; |
2954 | __u32 time = le32_to_cpu(pSMBr->last_write_time); | |
2955 | /* BB FIXME - add time zone adjustment BB */ | |
6b8edfe0 | 2956 | memset(pFinfo, 0, sizeof(FILE_ALL_INFO)); |
1bd5bbcb SF |
2957 | ts.tv_nsec = 0; |
2958 | ts.tv_sec = time; | |
2959 | /* decode time fields */ | |
733f99ac | 2960 | pFinfo->ChangeTime = cpu_to_le64(cifs_UnixTimeToNT(ts)); |
1bd5bbcb SF |
2961 | pFinfo->LastWriteTime = pFinfo->ChangeTime; |
2962 | pFinfo->LastAccessTime = 0; | |
70ca734a SF |
2963 | pFinfo->AllocationSize = |
2964 | cpu_to_le64(le32_to_cpu(pSMBr->size)); | |
2965 | pFinfo->EndOfFile = pFinfo->AllocationSize; | |
2966 | pFinfo->Attributes = | |
2967 | cpu_to_le32(le16_to_cpu(pSMBr->attr)); | |
6b8edfe0 SF |
2968 | } else |
2969 | rc = -EIO; /* bad buffer passed in */ | |
2970 | ||
2971 | cifs_buf_release(pSMB); | |
2972 | ||
2973 | if (rc == -EAGAIN) | |
2974 | goto QInfRetry; | |
2975 | ||
2976 | return rc; | |
2977 | } | |
2978 | ||
2979 | ||
2980 | ||
2981 | ||
1da177e4 LT |
2982 | int |
2983 | CIFSSMBQPathInfo(const int xid, struct cifsTconInfo *tcon, | |
2984 | const unsigned char *searchName, | |
2985 | FILE_ALL_INFO * pFindData, | |
acf1a1b1 | 2986 | int legacy /* old style infolevel */, |
737b758c | 2987 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
2988 | { |
2989 | /* level 263 SMB_QUERY_FILE_ALL_INFO */ | |
2990 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
2991 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
2992 | int rc = 0; | |
2993 | int bytes_returned; | |
2994 | int name_len; | |
2995 | __u16 params, byte_count; | |
2996 | ||
2997 | /* cFYI(1, ("In QPathInfo path %s", searchName)); */ | |
2998 | QPathInfoRetry: | |
2999 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3000 | (void **) &pSMBr); | |
3001 | if (rc) | |
3002 | return rc; | |
3003 | ||
3004 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3005 | name_len = | |
b1a45695 | 3006 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 3007 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
3008 | name_len++; /* trailing null */ |
3009 | name_len *= 2; | |
3010 | } else { /* BB improve the check for buffer overruns BB */ | |
3011 | name_len = strnlen(searchName, PATH_MAX); | |
3012 | name_len++; /* trailing null */ | |
3013 | strncpy(pSMB->FileName, searchName, name_len); | |
3014 | } | |
3015 | ||
3016 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */ ; | |
3017 | pSMB->TotalDataCount = 0; | |
3018 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3019 | pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ | |
3020 | pSMB->MaxSetupCount = 0; | |
3021 | pSMB->Reserved = 0; | |
3022 | pSMB->Flags = 0; | |
3023 | pSMB->Timeout = 0; | |
3024 | pSMB->Reserved2 = 0; | |
3025 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
3026 | struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); | |
3027 | pSMB->DataCount = 0; | |
3028 | pSMB->DataOffset = 0; | |
3029 | pSMB->SetupCount = 1; | |
3030 | pSMB->Reserved3 = 0; | |
3031 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
3032 | byte_count = params + 1 /* pad */ ; | |
3033 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3034 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
acf1a1b1 SF |
3035 | if(legacy) |
3036 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_STANDARD); | |
3037 | else | |
3038 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_ALL_INFO); | |
1da177e4 LT |
3039 | pSMB->Reserved4 = 0; |
3040 | pSMB->hdr.smb_buf_length += byte_count; | |
3041 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3042 | ||
3043 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3044 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3045 | if (rc) { | |
3046 | cFYI(1, ("Send error in QPathInfo = %d", rc)); | |
3047 | } else { /* decode response */ | |
3048 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3049 | ||
acf1a1b1 SF |
3050 | if (rc) /* BB add auto retry on EOPNOTSUPP? */ |
3051 | rc = -EIO; | |
3052 | else if (!legacy && (pSMBr->ByteCount < 40)) | |
1da177e4 | 3053 | rc = -EIO; /* bad smb */ |
acf1a1b1 SF |
3054 | else if(legacy && (pSMBr->ByteCount < 24)) |
3055 | rc = -EIO; /* 24 or 26 expected but we do not read last field */ | |
1da177e4 | 3056 | else if (pFindData){ |
acf1a1b1 | 3057 | int size; |
1da177e4 | 3058 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
acf1a1b1 SF |
3059 | if(legacy) /* we do not read the last field, EAsize, fortunately |
3060 | since it varies by subdialect and on Set vs. Get, is | |
3061 | two bytes or 4 bytes depending but we don't care here */ | |
3062 | size = sizeof(FILE_INFO_STANDARD); | |
3063 | else | |
3064 | size = sizeof(FILE_ALL_INFO); | |
1da177e4 LT |
3065 | memcpy((char *) pFindData, |
3066 | (char *) &pSMBr->hdr.Protocol + | |
acf1a1b1 | 3067 | data_offset, size); |
1da177e4 LT |
3068 | } else |
3069 | rc = -ENOMEM; | |
3070 | } | |
3071 | cifs_buf_release(pSMB); | |
3072 | if (rc == -EAGAIN) | |
3073 | goto QPathInfoRetry; | |
3074 | ||
3075 | return rc; | |
3076 | } | |
3077 | ||
3078 | int | |
3079 | CIFSSMBUnixQPathInfo(const int xid, struct cifsTconInfo *tcon, | |
3080 | const unsigned char *searchName, | |
3081 | FILE_UNIX_BASIC_INFO * pFindData, | |
737b758c | 3082 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
3083 | { |
3084 | /* SMB_QUERY_FILE_UNIX_BASIC */ | |
3085 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
3086 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
3087 | int rc = 0; | |
3088 | int bytes_returned = 0; | |
3089 | int name_len; | |
3090 | __u16 params, byte_count; | |
3091 | ||
3092 | cFYI(1, ("In QPathInfo (Unix) the path %s", searchName)); | |
3093 | UnixQPathInfoRetry: | |
3094 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3095 | (void **) &pSMBr); | |
3096 | if (rc) | |
3097 | return rc; | |
3098 | ||
3099 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3100 | name_len = | |
b1a45695 | 3101 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 3102 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
3103 | name_len++; /* trailing null */ |
3104 | name_len *= 2; | |
3105 | } else { /* BB improve the check for buffer overruns BB */ | |
3106 | name_len = strnlen(searchName, PATH_MAX); | |
3107 | name_len++; /* trailing null */ | |
3108 | strncpy(pSMB->FileName, searchName, name_len); | |
3109 | } | |
3110 | ||
3111 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */ ; | |
3112 | pSMB->TotalDataCount = 0; | |
3113 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3114 | /* BB find exact max SMB PDU from sess structure BB */ | |
3115 | pSMB->MaxDataCount = cpu_to_le16(4000); | |
3116 | pSMB->MaxSetupCount = 0; | |
3117 | pSMB->Reserved = 0; | |
3118 | pSMB->Flags = 0; | |
3119 | pSMB->Timeout = 0; | |
3120 | pSMB->Reserved2 = 0; | |
3121 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
3122 | struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); | |
3123 | pSMB->DataCount = 0; | |
3124 | pSMB->DataOffset = 0; | |
3125 | pSMB->SetupCount = 1; | |
3126 | pSMB->Reserved3 = 0; | |
3127 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
3128 | byte_count = params + 1 /* pad */ ; | |
3129 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3130 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3131 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_UNIX_BASIC); | |
3132 | pSMB->Reserved4 = 0; | |
3133 | pSMB->hdr.smb_buf_length += byte_count; | |
3134 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3135 | ||
3136 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3137 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3138 | if (rc) { | |
3139 | cFYI(1, ("Send error in QPathInfo = %d", rc)); | |
3140 | } else { /* decode response */ | |
3141 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3142 | ||
3143 | if (rc || (pSMBr->ByteCount < sizeof(FILE_UNIX_BASIC_INFO))) { | |
3144 | rc = -EIO; /* bad smb */ | |
3145 | } else { | |
3146 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
3147 | memcpy((char *) pFindData, | |
3148 | (char *) &pSMBr->hdr.Protocol + | |
3149 | data_offset, | |
3150 | sizeof (FILE_UNIX_BASIC_INFO)); | |
3151 | } | |
3152 | } | |
3153 | cifs_buf_release(pSMB); | |
3154 | if (rc == -EAGAIN) | |
3155 | goto UnixQPathInfoRetry; | |
3156 | ||
3157 | return rc; | |
3158 | } | |
3159 | ||
3160 | #if 0 /* function unused at present */ | |
3161 | int CIFSFindSingle(const int xid, struct cifsTconInfo *tcon, | |
3162 | const char *searchName, FILE_ALL_INFO * findData, | |
3163 | const struct nls_table *nls_codepage) | |
3164 | { | |
3165 | /* level 257 SMB_ */ | |
3166 | TRANSACTION2_FFIRST_REQ *pSMB = NULL; | |
3167 | TRANSACTION2_FFIRST_RSP *pSMBr = NULL; | |
3168 | int rc = 0; | |
3169 | int bytes_returned; | |
3170 | int name_len; | |
3171 | __u16 params, byte_count; | |
3172 | ||
3173 | cFYI(1, ("In FindUnique")); | |
3174 | findUniqueRetry: | |
3175 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3176 | (void **) &pSMBr); | |
3177 | if (rc) | |
3178 | return rc; | |
3179 | ||
3180 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3181 | name_len = | |
b1a45695 | 3182 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, PATH_MAX |
1da177e4 LT |
3183 | /* find define for this maxpathcomponent */ |
3184 | , nls_codepage); | |
3185 | name_len++; /* trailing null */ | |
3186 | name_len *= 2; | |
3187 | } else { /* BB improve the check for buffer overruns BB */ | |
3188 | name_len = strnlen(searchName, PATH_MAX); | |
3189 | name_len++; /* trailing null */ | |
3190 | strncpy(pSMB->FileName, searchName, name_len); | |
3191 | } | |
3192 | ||
3193 | params = 12 + name_len /* includes null */ ; | |
3194 | pSMB->TotalDataCount = 0; /* no EAs */ | |
3195 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3196 | pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ | |
3197 | pSMB->MaxSetupCount = 0; | |
3198 | pSMB->Reserved = 0; | |
3199 | pSMB->Flags = 0; | |
3200 | pSMB->Timeout = 0; | |
3201 | pSMB->Reserved2 = 0; | |
3202 | pSMB->ParameterOffset = cpu_to_le16( | |
3203 | offsetof(struct smb_com_transaction2_ffirst_req,InformationLevel) - 4); | |
3204 | pSMB->DataCount = 0; | |
3205 | pSMB->DataOffset = 0; | |
3206 | pSMB->SetupCount = 1; /* one byte, no need to le convert */ | |
3207 | pSMB->Reserved3 = 0; | |
3208 | pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_FIRST); | |
3209 | byte_count = params + 1 /* pad */ ; | |
3210 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3211 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3212 | pSMB->SearchAttributes = | |
3213 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | | |
3214 | ATTR_DIRECTORY); | |
3215 | pSMB->SearchCount = cpu_to_le16(16); /* BB increase */ | |
3216 | pSMB->SearchFlags = cpu_to_le16(1); | |
3217 | pSMB->InformationLevel = cpu_to_le16(SMB_FIND_FILE_DIRECTORY_INFO); | |
3218 | pSMB->SearchStorageType = 0; /* BB what should we set this to? BB */ | |
3219 | pSMB->hdr.smb_buf_length += byte_count; | |
3220 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3221 | ||
3222 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3223 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3224 | ||
3225 | if (rc) { | |
3226 | cFYI(1, ("Send error in FindFileDirInfo = %d", rc)); | |
3227 | } else { /* decode response */ | |
a4544347 | 3228 | cifs_stats_inc(&tcon->num_ffirst); |
1da177e4 LT |
3229 | /* BB fill in */ |
3230 | } | |
3231 | ||
3232 | cifs_buf_release(pSMB); | |
3233 | if (rc == -EAGAIN) | |
3234 | goto findUniqueRetry; | |
3235 | ||
3236 | return rc; | |
3237 | } | |
3238 | #endif /* end unused (temporarily) function */ | |
3239 | ||
3240 | /* xid, tcon, searchName and codepage are input parms, rest are returned */ | |
3241 | int | |
3242 | CIFSFindFirst(const int xid, struct cifsTconInfo *tcon, | |
3243 | const char *searchName, | |
3244 | const struct nls_table *nls_codepage, | |
3245 | __u16 * pnetfid, | |
ac67055e | 3246 | struct cifs_search_info * psrch_inf, int remap, const char dirsep) |
1da177e4 LT |
3247 | { |
3248 | /* level 257 SMB_ */ | |
3249 | TRANSACTION2_FFIRST_REQ *pSMB = NULL; | |
3250 | TRANSACTION2_FFIRST_RSP *pSMBr = NULL; | |
3251 | T2_FFIRST_RSP_PARMS * parms; | |
3252 | int rc = 0; | |
3253 | int bytes_returned = 0; | |
3254 | int name_len; | |
3255 | __u16 params, byte_count; | |
3256 | ||
737b758c | 3257 | cFYI(1, ("In FindFirst for %s",searchName)); |
1da177e4 LT |
3258 | |
3259 | findFirstRetry: | |
3260 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3261 | (void **) &pSMBr); | |
3262 | if (rc) | |
3263 | return rc; | |
3264 | ||
3265 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3266 | name_len = | |
b1a45695 | 3267 | cifsConvertToUCS((__le16 *) pSMB->FileName,searchName, |
737b758c SF |
3268 | PATH_MAX, nls_codepage, remap); |
3269 | /* We can not add the asterik earlier in case | |
3270 | it got remapped to 0xF03A as if it were part of the | |
3271 | directory name instead of a wildcard */ | |
1da177e4 | 3272 | name_len *= 2; |
ac67055e | 3273 | pSMB->FileName[name_len] = dirsep; |
737b758c SF |
3274 | pSMB->FileName[name_len+1] = 0; |
3275 | pSMB->FileName[name_len+2] = '*'; | |
3276 | pSMB->FileName[name_len+3] = 0; | |
3277 | name_len += 4; /* now the trailing null */ | |
1da177e4 LT |
3278 | pSMB->FileName[name_len] = 0; /* null terminate just in case */ |
3279 | pSMB->FileName[name_len+1] = 0; | |
737b758c | 3280 | name_len += 2; |
1da177e4 LT |
3281 | } else { /* BB add check for overrun of SMB buf BB */ |
3282 | name_len = strnlen(searchName, PATH_MAX); | |
1da177e4 LT |
3283 | /* BB fix here and in unicode clause above ie |
3284 | if(name_len > buffersize-header) | |
3285 | free buffer exit; BB */ | |
3286 | strncpy(pSMB->FileName, searchName, name_len); | |
ac67055e | 3287 | pSMB->FileName[name_len] = dirsep; |
68575476 SF |
3288 | pSMB->FileName[name_len+1] = '*'; |
3289 | pSMB->FileName[name_len+2] = 0; | |
3290 | name_len += 3; | |
1da177e4 LT |
3291 | } |
3292 | ||
3293 | params = 12 + name_len /* includes null */ ; | |
3294 | pSMB->TotalDataCount = 0; /* no EAs */ | |
3295 | pSMB->MaxParameterCount = cpu_to_le16(10); | |
3296 | pSMB->MaxDataCount = cpu_to_le16((tcon->ses->server->maxBuf - | |
3297 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
3298 | pSMB->MaxSetupCount = 0; | |
3299 | pSMB->Reserved = 0; | |
3300 | pSMB->Flags = 0; | |
3301 | pSMB->Timeout = 0; | |
3302 | pSMB->Reserved2 = 0; | |
3303 | byte_count = params + 1 /* pad */ ; | |
3304 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3305 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3306 | pSMB->ParameterOffset = cpu_to_le16( | |
88274815 SF |
3307 | offsetof(struct smb_com_transaction2_ffirst_req, SearchAttributes) |
3308 | - 4); | |
1da177e4 LT |
3309 | pSMB->DataCount = 0; |
3310 | pSMB->DataOffset = 0; | |
3311 | pSMB->SetupCount = 1; /* one byte, no need to make endian neutral */ | |
3312 | pSMB->Reserved3 = 0; | |
3313 | pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_FIRST); | |
3314 | pSMB->SearchAttributes = | |
3315 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | | |
3316 | ATTR_DIRECTORY); | |
3317 | pSMB->SearchCount= cpu_to_le16(CIFSMaxBufSize/sizeof(FILE_UNIX_INFO)); | |
3318 | pSMB->SearchFlags = cpu_to_le16(CIFS_SEARCH_CLOSE_AT_END | | |
3319 | CIFS_SEARCH_RETURN_RESUME); | |
3320 | pSMB->InformationLevel = cpu_to_le16(psrch_inf->info_level); | |
3321 | ||
3322 | /* BB what should we set StorageType to? Does it matter? BB */ | |
3323 | pSMB->SearchStorageType = 0; | |
3324 | pSMB->hdr.smb_buf_length += byte_count; | |
3325 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3326 | ||
3327 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3328 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 3329 | cifs_stats_inc(&tcon->num_ffirst); |
1da177e4 | 3330 | |
88274815 SF |
3331 | if (rc) {/* BB add logic to retry regular search if Unix search |
3332 | rejected unexpectedly by server */ | |
1da177e4 LT |
3333 | /* BB Add code to handle unsupported level rc */ |
3334 | cFYI(1, ("Error in FindFirst = %d", rc)); | |
1982c344 | 3335 | |
88274815 | 3336 | cifs_buf_release(pSMB); |
1da177e4 LT |
3337 | |
3338 | /* BB eventually could optimize out free and realloc of buf */ | |
3339 | /* for this case */ | |
3340 | if (rc == -EAGAIN) | |
3341 | goto findFirstRetry; | |
3342 | } else { /* decode response */ | |
3343 | /* BB remember to free buffer if error BB */ | |
3344 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3345 | if(rc == 0) { | |
3346 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) | |
3347 | psrch_inf->unicode = TRUE; | |
3348 | else | |
3349 | psrch_inf->unicode = FALSE; | |
3350 | ||
3351 | psrch_inf->ntwrk_buf_start = (char *)pSMBr; | |
d47d7c1a | 3352 | psrch_inf->smallBuf = 0; |
1da177e4 LT |
3353 | psrch_inf->srch_entries_start = |
3354 | (char *) &pSMBr->hdr.Protocol + | |
3355 | le16_to_cpu(pSMBr->t2.DataOffset); | |
1da177e4 LT |
3356 | parms = (T2_FFIRST_RSP_PARMS *)((char *) &pSMBr->hdr.Protocol + |
3357 | le16_to_cpu(pSMBr->t2.ParameterOffset)); | |
3358 | ||
3359 | if(parms->EndofSearch) | |
3360 | psrch_inf->endOfSearch = TRUE; | |
3361 | else | |
3362 | psrch_inf->endOfSearch = FALSE; | |
3363 | ||
3364 | psrch_inf->entries_in_buffer = le16_to_cpu(parms->SearchCount); | |
60808233 | 3365 | psrch_inf->index_of_last_entry = 2 /* skip . and .. */ + |
1da177e4 | 3366 | psrch_inf->entries_in_buffer; |
1da177e4 LT |
3367 | *pnetfid = parms->SearchHandle; |
3368 | } else { | |
3369 | cifs_buf_release(pSMB); | |
3370 | } | |
3371 | } | |
3372 | ||
3373 | return rc; | |
3374 | } | |
3375 | ||
3376 | int CIFSFindNext(const int xid, struct cifsTconInfo *tcon, | |
3377 | __u16 searchHandle, struct cifs_search_info * psrch_inf) | |
3378 | { | |
3379 | TRANSACTION2_FNEXT_REQ *pSMB = NULL; | |
3380 | TRANSACTION2_FNEXT_RSP *pSMBr = NULL; | |
3381 | T2_FNEXT_RSP_PARMS * parms; | |
3382 | char *response_data; | |
3383 | int rc = 0; | |
3384 | int bytes_returned, name_len; | |
3385 | __u16 params, byte_count; | |
3386 | ||
3387 | cFYI(1, ("In FindNext")); | |
3388 | ||
3389 | if(psrch_inf->endOfSearch == TRUE) | |
3390 | return -ENOENT; | |
3391 | ||
3392 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3393 | (void **) &pSMBr); | |
3394 | if (rc) | |
3395 | return rc; | |
3396 | ||
3397 | params = 14; /* includes 2 bytes of null string, converted to LE below */ | |
3398 | byte_count = 0; | |
3399 | pSMB->TotalDataCount = 0; /* no EAs */ | |
3400 | pSMB->MaxParameterCount = cpu_to_le16(8); | |
3401 | pSMB->MaxDataCount = | |
3402 | cpu_to_le16((tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
3403 | pSMB->MaxSetupCount = 0; | |
3404 | pSMB->Reserved = 0; | |
3405 | pSMB->Flags = 0; | |
3406 | pSMB->Timeout = 0; | |
3407 | pSMB->Reserved2 = 0; | |
3408 | pSMB->ParameterOffset = cpu_to_le16( | |
3409 | offsetof(struct smb_com_transaction2_fnext_req,SearchHandle) - 4); | |
3410 | pSMB->DataCount = 0; | |
3411 | pSMB->DataOffset = 0; | |
3412 | pSMB->SetupCount = 1; | |
3413 | pSMB->Reserved3 = 0; | |
3414 | pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_NEXT); | |
3415 | pSMB->SearchHandle = searchHandle; /* always kept as le */ | |
3416 | pSMB->SearchCount = | |
3417 | cpu_to_le16(CIFSMaxBufSize / sizeof (FILE_UNIX_INFO)); | |
3418 | /* test for Unix extensions */ | |
3419 | /* if (tcon->ses->capabilities & CAP_UNIX) { | |
3420 | pSMB->InformationLevel = cpu_to_le16(SMB_FIND_FILE_UNIX); | |
3421 | psrch_inf->info_level = SMB_FIND_FILE_UNIX; | |
3422 | } else { | |
3423 | pSMB->InformationLevel = | |
3424 | cpu_to_le16(SMB_FIND_FILE_DIRECTORY_INFO); | |
3425 | psrch_inf->info_level = SMB_FIND_FILE_DIRECTORY_INFO; | |
3426 | } */ | |
3427 | pSMB->InformationLevel = cpu_to_le16(psrch_inf->info_level); | |
3428 | pSMB->ResumeKey = psrch_inf->resume_key; | |
3429 | pSMB->SearchFlags = | |
3430 | cpu_to_le16(CIFS_SEARCH_CLOSE_AT_END | CIFS_SEARCH_RETURN_RESUME); | |
3431 | ||
3432 | name_len = psrch_inf->resume_name_len; | |
3433 | params += name_len; | |
3434 | if(name_len < PATH_MAX) { | |
3435 | memcpy(pSMB->ResumeFileName, psrch_inf->presume_name, name_len); | |
3436 | byte_count += name_len; | |
ef6724e3 SF |
3437 | /* 14 byte parm len above enough for 2 byte null terminator */ |
3438 | pSMB->ResumeFileName[name_len] = 0; | |
3439 | pSMB->ResumeFileName[name_len+1] = 0; | |
1da177e4 LT |
3440 | } else { |
3441 | rc = -EINVAL; | |
3442 | goto FNext2_err_exit; | |
3443 | } | |
3444 | byte_count = params + 1 /* pad */ ; | |
3445 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3446 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3447 | pSMB->hdr.smb_buf_length += byte_count; | |
3448 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3449 | ||
3450 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3451 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 3452 | cifs_stats_inc(&tcon->num_fnext); |
1da177e4 LT |
3453 | if (rc) { |
3454 | if (rc == -EBADF) { | |
3455 | psrch_inf->endOfSearch = TRUE; | |
3456 | rc = 0; /* search probably was closed at end of search above */ | |
3457 | } else | |
3458 | cFYI(1, ("FindNext returned = %d", rc)); | |
3459 | } else { /* decode response */ | |
3460 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3461 | ||
3462 | if(rc == 0) { | |
3463 | /* BB fixme add lock for file (srch_info) struct here */ | |
3464 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) | |
3465 | psrch_inf->unicode = TRUE; | |
3466 | else | |
3467 | psrch_inf->unicode = FALSE; | |
3468 | response_data = (char *) &pSMBr->hdr.Protocol + | |
3469 | le16_to_cpu(pSMBr->t2.ParameterOffset); | |
3470 | parms = (T2_FNEXT_RSP_PARMS *)response_data; | |
3471 | response_data = (char *)&pSMBr->hdr.Protocol + | |
3472 | le16_to_cpu(pSMBr->t2.DataOffset); | |
d47d7c1a SF |
3473 | if(psrch_inf->smallBuf) |
3474 | cifs_small_buf_release( | |
3475 | psrch_inf->ntwrk_buf_start); | |
3476 | else | |
3477 | cifs_buf_release(psrch_inf->ntwrk_buf_start); | |
1da177e4 LT |
3478 | psrch_inf->srch_entries_start = response_data; |
3479 | psrch_inf->ntwrk_buf_start = (char *)pSMB; | |
d47d7c1a | 3480 | psrch_inf->smallBuf = 0; |
1da177e4 LT |
3481 | if(parms->EndofSearch) |
3482 | psrch_inf->endOfSearch = TRUE; | |
3483 | else | |
3484 | psrch_inf->endOfSearch = FALSE; | |
3485 | ||
3486 | psrch_inf->entries_in_buffer = le16_to_cpu(parms->SearchCount); | |
3487 | psrch_inf->index_of_last_entry += | |
3488 | psrch_inf->entries_in_buffer; | |
3489 | /* cFYI(1,("fnxt2 entries in buf %d index_of_last %d",psrch_inf->entries_in_buffer,psrch_inf->index_of_last_entry)); */ | |
3490 | ||
3491 | /* BB fixme add unlock here */ | |
3492 | } | |
3493 | ||
3494 | } | |
3495 | ||
3496 | /* BB On error, should we leave previous search buf (and count and | |
3497 | last entry fields) intact or free the previous one? */ | |
3498 | ||
3499 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
3500 | since file handle passed in no longer valid */ | |
3501 | FNext2_err_exit: | |
3502 | if (rc != 0) | |
3503 | cifs_buf_release(pSMB); | |
3504 | ||
3505 | return rc; | |
3506 | } | |
3507 | ||
3508 | int | |
3509 | CIFSFindClose(const int xid, struct cifsTconInfo *tcon, const __u16 searchHandle) | |
3510 | { | |
3511 | int rc = 0; | |
3512 | FINDCLOSE_REQ *pSMB = NULL; | |
3513 | CLOSE_RSP *pSMBr = NULL; /* BB removeme BB */ | |
3514 | int bytes_returned; | |
3515 | ||
3516 | cFYI(1, ("In CIFSSMBFindClose")); | |
3517 | rc = small_smb_init(SMB_COM_FIND_CLOSE2, 1, tcon, (void **)&pSMB); | |
3518 | ||
3519 | /* no sense returning error if session restarted | |
3520 | as file handle has been closed */ | |
3521 | if(rc == -EAGAIN) | |
3522 | return 0; | |
3523 | if (rc) | |
3524 | return rc; | |
3525 | ||
3526 | pSMBr = (CLOSE_RSP *)pSMB; /* BB removeme BB */ | |
3527 | pSMB->FileID = searchHandle; | |
3528 | pSMB->ByteCount = 0; | |
3529 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3530 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3531 | if (rc) { | |
3532 | cERROR(1, ("Send error in FindClose = %d", rc)); | |
3533 | } | |
a4544347 | 3534 | cifs_stats_inc(&tcon->num_fclose); |
1da177e4 LT |
3535 | cifs_small_buf_release(pSMB); |
3536 | ||
3537 | /* Since session is dead, search handle closed on server already */ | |
3538 | if (rc == -EAGAIN) | |
3539 | rc = 0; | |
3540 | ||
3541 | return rc; | |
3542 | } | |
3543 | ||
1da177e4 LT |
3544 | int |
3545 | CIFSGetSrvInodeNumber(const int xid, struct cifsTconInfo *tcon, | |
3546 | const unsigned char *searchName, | |
3547 | __u64 * inode_number, | |
737b758c | 3548 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
3549 | { |
3550 | int rc = 0; | |
3551 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
3552 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
3553 | int name_len, bytes_returned; | |
3554 | __u16 params, byte_count; | |
3555 | ||
3556 | cFYI(1,("In GetSrvInodeNum for %s",searchName)); | |
3557 | if(tcon == NULL) | |
3558 | return -ENODEV; | |
3559 | ||
3560 | GetInodeNumberRetry: | |
3561 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3562 | (void **) &pSMBr); | |
3563 | if (rc) | |
3564 | return rc; | |
3565 | ||
3566 | ||
3567 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3568 | name_len = | |
b1a45695 | 3569 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 3570 | PATH_MAX,nls_codepage, remap); |
1da177e4 LT |
3571 | name_len++; /* trailing null */ |
3572 | name_len *= 2; | |
3573 | } else { /* BB improve the check for buffer overruns BB */ | |
3574 | name_len = strnlen(searchName, PATH_MAX); | |
3575 | name_len++; /* trailing null */ | |
3576 | strncpy(pSMB->FileName, searchName, name_len); | |
3577 | } | |
3578 | ||
3579 | params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ; | |
3580 | pSMB->TotalDataCount = 0; | |
3581 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3582 | /* BB find exact max data count below from sess structure BB */ | |
3583 | pSMB->MaxDataCount = cpu_to_le16(4000); | |
3584 | pSMB->MaxSetupCount = 0; | |
3585 | pSMB->Reserved = 0; | |
3586 | pSMB->Flags = 0; | |
3587 | pSMB->Timeout = 0; | |
3588 | pSMB->Reserved2 = 0; | |
3589 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
3590 | struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); | |
3591 | pSMB->DataCount = 0; | |
3592 | pSMB->DataOffset = 0; | |
3593 | pSMB->SetupCount = 1; | |
3594 | pSMB->Reserved3 = 0; | |
3595 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
3596 | byte_count = params + 1 /* pad */ ; | |
3597 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3598 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3599 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_INTERNAL_INFO); | |
3600 | pSMB->Reserved4 = 0; | |
3601 | pSMB->hdr.smb_buf_length += byte_count; | |
3602 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3603 | ||
3604 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3605 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3606 | if (rc) { | |
3607 | cFYI(1, ("error %d in QueryInternalInfo", rc)); | |
3608 | } else { | |
3609 | /* decode response */ | |
3610 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3611 | if (rc || (pSMBr->ByteCount < 2)) | |
3612 | /* BB also check enough total bytes returned */ | |
3613 | /* If rc should we check for EOPNOSUPP and | |
3614 | disable the srvino flag? or in caller? */ | |
3615 | rc = -EIO; /* bad smb */ | |
3616 | else { | |
3617 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
3618 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); | |
3619 | struct file_internal_info * pfinfo; | |
3620 | /* BB Do we need a cast or hash here ? */ | |
3621 | if(count < 8) { | |
3622 | cFYI(1, ("Illegal size ret in QryIntrnlInf")); | |
3623 | rc = -EIO; | |
3624 | goto GetInodeNumOut; | |
3625 | } | |
3626 | pfinfo = (struct file_internal_info *) | |
3627 | (data_offset + (char *) &pSMBr->hdr.Protocol); | |
3628 | *inode_number = pfinfo->UniqueId; | |
3629 | } | |
3630 | } | |
3631 | GetInodeNumOut: | |
3632 | cifs_buf_release(pSMB); | |
3633 | if (rc == -EAGAIN) | |
3634 | goto GetInodeNumberRetry; | |
3635 | return rc; | |
3636 | } | |
1da177e4 LT |
3637 | |
3638 | int | |
3639 | CIFSGetDFSRefer(const int xid, struct cifsSesInfo *ses, | |
3640 | const unsigned char *searchName, | |
3641 | unsigned char **targetUNCs, | |
3642 | unsigned int *number_of_UNC_in_array, | |
737b758c | 3643 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
3644 | { |
3645 | /* TRANS2_GET_DFS_REFERRAL */ | |
3646 | TRANSACTION2_GET_DFS_REFER_REQ *pSMB = NULL; | |
3647 | TRANSACTION2_GET_DFS_REFER_RSP *pSMBr = NULL; | |
3648 | struct dfs_referral_level_3 * referrals = NULL; | |
3649 | int rc = 0; | |
3650 | int bytes_returned; | |
3651 | int name_len; | |
3652 | unsigned int i; | |
3653 | char * temp; | |
3654 | __u16 params, byte_count; | |
3655 | *number_of_UNC_in_array = 0; | |
3656 | *targetUNCs = NULL; | |
3657 | ||
3658 | cFYI(1, ("In GetDFSRefer the path %s", searchName)); | |
3659 | if (ses == NULL) | |
3660 | return -ENODEV; | |
3661 | getDFSRetry: | |
3662 | rc = smb_init(SMB_COM_TRANSACTION2, 15, NULL, (void **) &pSMB, | |
3663 | (void **) &pSMBr); | |
3664 | if (rc) | |
3665 | return rc; | |
1982c344 SF |
3666 | |
3667 | /* server pointer checked in called function, | |
3668 | but should never be null here anyway */ | |
3669 | pSMB->hdr.Mid = GetNextMid(ses->server); | |
1da177e4 LT |
3670 | pSMB->hdr.Tid = ses->ipc_tid; |
3671 | pSMB->hdr.Uid = ses->Suid; | |
3672 | if (ses->capabilities & CAP_STATUS32) { | |
3673 | pSMB->hdr.Flags2 |= SMBFLG2_ERR_STATUS; | |
3674 | } | |
3675 | if (ses->capabilities & CAP_DFS) { | |
3676 | pSMB->hdr.Flags2 |= SMBFLG2_DFS; | |
3677 | } | |
3678 | ||
3679 | if (ses->capabilities & CAP_UNICODE) { | |
3680 | pSMB->hdr.Flags2 |= SMBFLG2_UNICODE; | |
3681 | name_len = | |
b1a45695 | 3682 | cifsConvertToUCS((__le16 *) pSMB->RequestFileName, |
737b758c | 3683 | searchName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
3684 | name_len++; /* trailing null */ |
3685 | name_len *= 2; | |
3686 | } else { /* BB improve the check for buffer overruns BB */ | |
3687 | name_len = strnlen(searchName, PATH_MAX); | |
3688 | name_len++; /* trailing null */ | |
3689 | strncpy(pSMB->RequestFileName, searchName, name_len); | |
3690 | } | |
3691 | ||
1a4e15a0 SF |
3692 | if(ses->server) { |
3693 | if(ses->server->secMode & | |
3694 | (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) | |
3695 | pSMB->hdr.Flags2 |= SMBFLG2_SECURITY_SIGNATURE; | |
3696 | } | |
3697 | ||
3698 | pSMB->hdr.Uid = ses->Suid; | |
3699 | ||
1da177e4 LT |
3700 | params = 2 /* level */ + name_len /*includes null */ ; |
3701 | pSMB->TotalDataCount = 0; | |
3702 | pSMB->DataCount = 0; | |
3703 | pSMB->DataOffset = 0; | |
3704 | pSMB->MaxParameterCount = 0; | |
3705 | pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ | |
3706 | pSMB->MaxSetupCount = 0; | |
3707 | pSMB->Reserved = 0; | |
3708 | pSMB->Flags = 0; | |
3709 | pSMB->Timeout = 0; | |
3710 | pSMB->Reserved2 = 0; | |
3711 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
3712 | struct smb_com_transaction2_get_dfs_refer_req, MaxReferralLevel) - 4); | |
3713 | pSMB->SetupCount = 1; | |
3714 | pSMB->Reserved3 = 0; | |
3715 | pSMB->SubCommand = cpu_to_le16(TRANS2_GET_DFS_REFERRAL); | |
3716 | byte_count = params + 3 /* pad */ ; | |
3717 | pSMB->ParameterCount = cpu_to_le16(params); | |
3718 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
3719 | pSMB->MaxReferralLevel = cpu_to_le16(3); | |
3720 | pSMB->hdr.smb_buf_length += byte_count; | |
3721 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3722 | ||
3723 | rc = SendReceive(xid, ses, (struct smb_hdr *) pSMB, | |
3724 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3725 | if (rc) { | |
3726 | cFYI(1, ("Send error in GetDFSRefer = %d", rc)); | |
3727 | } else { /* decode response */ | |
3728 | /* BB Add logic to parse referrals here */ | |
3729 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3730 | ||
3731 | if (rc || (pSMBr->ByteCount < 17)) /* BB also check enough total bytes returned */ | |
3732 | rc = -EIO; /* bad smb */ | |
3733 | else { | |
3734 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
3735 | __u16 data_count = le16_to_cpu(pSMBr->t2.DataCount); | |
3736 | ||
3737 | cFYI(1, | |
3738 | ("Decoding GetDFSRefer response. BCC: %d Offset %d", | |
3739 | pSMBr->ByteCount, data_offset)); | |
3740 | referrals = | |
3741 | (struct dfs_referral_level_3 *) | |
3742 | (8 /* sizeof start of data block */ + | |
3743 | data_offset + | |
3744 | (char *) &pSMBr->hdr.Protocol); | |
3745 | 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", | |
3746 | 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))); | |
3747 | /* BB This field is actually two bytes in from start of | |
3748 | data block so we could do safety check that DataBlock | |
3749 | begins at address of pSMBr->NumberOfReferrals */ | |
3750 | *number_of_UNC_in_array = le16_to_cpu(pSMBr->NumberOfReferrals); | |
3751 | ||
3752 | /* BB Fix below so can return more than one referral */ | |
3753 | if(*number_of_UNC_in_array > 1) | |
3754 | *number_of_UNC_in_array = 1; | |
3755 | ||
3756 | /* get the length of the strings describing refs */ | |
3757 | name_len = 0; | |
3758 | for(i=0;i<*number_of_UNC_in_array;i++) { | |
3759 | /* make sure that DfsPathOffset not past end */ | |
3760 | __u16 offset = le16_to_cpu(referrals->DfsPathOffset); | |
3761 | if (offset > data_count) { | |
3762 | /* if invalid referral, stop here and do | |
3763 | not try to copy any more */ | |
3764 | *number_of_UNC_in_array = i; | |
3765 | break; | |
3766 | } | |
3767 | temp = ((char *)referrals) + offset; | |
3768 | ||
3769 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3770 | name_len += UniStrnlen((wchar_t *)temp,data_count); | |
3771 | } else { | |
3772 | name_len += strnlen(temp,data_count); | |
3773 | } | |
3774 | referrals++; | |
3775 | /* BB add check that referral pointer does not fall off end PDU */ | |
3776 | ||
3777 | } | |
3778 | /* BB add check for name_len bigger than bcc */ | |
3779 | *targetUNCs = | |
3780 | kmalloc(name_len+1+ (*number_of_UNC_in_array),GFP_KERNEL); | |
3781 | if(*targetUNCs == NULL) { | |
3782 | rc = -ENOMEM; | |
3783 | goto GetDFSRefExit; | |
3784 | } | |
3785 | /* copy the ref strings */ | |
3786 | referrals = | |
3787 | (struct dfs_referral_level_3 *) | |
3788 | (8 /* sizeof data hdr */ + | |
3789 | data_offset + | |
3790 | (char *) &pSMBr->hdr.Protocol); | |
3791 | ||
3792 | for(i=0;i<*number_of_UNC_in_array;i++) { | |
3793 | temp = ((char *)referrals) + le16_to_cpu(referrals->DfsPathOffset); | |
3794 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3795 | cifs_strfromUCS_le(*targetUNCs, | |
e89dc920 | 3796 | (__le16 *) temp, name_len, nls_codepage); |
1da177e4 LT |
3797 | } else { |
3798 | strncpy(*targetUNCs,temp,name_len); | |
3799 | } | |
3800 | /* BB update target_uncs pointers */ | |
3801 | referrals++; | |
3802 | } | |
3803 | temp = *targetUNCs; | |
3804 | temp[name_len] = 0; | |
3805 | } | |
3806 | ||
3807 | } | |
3808 | GetDFSRefExit: | |
3809 | if (pSMB) | |
3810 | cifs_buf_release(pSMB); | |
3811 | ||
3812 | if (rc == -EAGAIN) | |
3813 | goto getDFSRetry; | |
3814 | ||
3815 | return rc; | |
3816 | } | |
3817 | ||
20962438 SF |
3818 | /* Query File System Info such as free space to old servers such as Win 9x */ |
3819 | int | |
3820 | SMBOldQFSInfo(const int xid, struct cifsTconInfo *tcon, struct kstatfs *FSData) | |
3821 | { | |
3822 | /* level 0x01 SMB_QUERY_FILE_SYSTEM_INFO */ | |
3823 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
3824 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
3825 | FILE_SYSTEM_ALLOC_INFO *response_data; | |
3826 | int rc = 0; | |
3827 | int bytes_returned = 0; | |
3828 | __u16 params, byte_count; | |
3829 | ||
3830 | cFYI(1, ("OldQFSInfo")); | |
3831 | oldQFSInfoRetry: | |
3832 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3833 | (void **) &pSMBr); | |
3834 | if (rc) | |
3835 | return rc; | |
3836 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3837 | (void **) &pSMBr); | |
3838 | if (rc) | |
3839 | return rc; | |
3840 | ||
3841 | params = 2; /* level */ | |
3842 | pSMB->TotalDataCount = 0; | |
3843 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3844 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
3845 | pSMB->MaxSetupCount = 0; | |
3846 | pSMB->Reserved = 0; | |
3847 | pSMB->Flags = 0; | |
3848 | pSMB->Timeout = 0; | |
3849 | pSMB->Reserved2 = 0; | |
3850 | byte_count = params + 1 /* pad */ ; | |
3851 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3852 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3853 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
3854 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
3855 | pSMB->DataCount = 0; | |
3856 | pSMB->DataOffset = 0; | |
3857 | pSMB->SetupCount = 1; | |
3858 | pSMB->Reserved3 = 0; | |
3859 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
3860 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_ALLOCATION); | |
3861 | pSMB->hdr.smb_buf_length += byte_count; | |
3862 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3863 | ||
3864 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3865 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3866 | if (rc) { | |
3867 | cFYI(1, ("Send error in QFSInfo = %d", rc)); | |
3868 | } else { /* decode response */ | |
3869 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3870 | ||
3871 | if (rc || (pSMBr->ByteCount < 18)) | |
3872 | rc = -EIO; /* bad smb */ | |
3873 | else { | |
3874 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
3875 | cFYI(1,("qfsinf resp BCC: %d Offset %d", | |
3876 | pSMBr->ByteCount, data_offset)); | |
3877 | ||
3878 | response_data = | |
3879 | (FILE_SYSTEM_ALLOC_INFO *) | |
3880 | (((char *) &pSMBr->hdr.Protocol) + data_offset); | |
3881 | FSData->f_bsize = | |
3882 | le16_to_cpu(response_data->BytesPerSector) * | |
3883 | le32_to_cpu(response_data-> | |
3884 | SectorsPerAllocationUnit); | |
3885 | FSData->f_blocks = | |
3886 | le32_to_cpu(response_data->TotalAllocationUnits); | |
3887 | FSData->f_bfree = FSData->f_bavail = | |
3888 | le32_to_cpu(response_data->FreeAllocationUnits); | |
3889 | cFYI(1, | |
3890 | ("Blocks: %lld Free: %lld Block size %ld", | |
3891 | (unsigned long long)FSData->f_blocks, | |
3892 | (unsigned long long)FSData->f_bfree, | |
3893 | FSData->f_bsize)); | |
3894 | } | |
3895 | } | |
3896 | cifs_buf_release(pSMB); | |
3897 | ||
3898 | if (rc == -EAGAIN) | |
3899 | goto oldQFSInfoRetry; | |
3900 | ||
3901 | return rc; | |
3902 | } | |
3903 | ||
1da177e4 | 3904 | int |
737b758c | 3905 | CIFSSMBQFSInfo(const int xid, struct cifsTconInfo *tcon, struct kstatfs *FSData) |
1da177e4 LT |
3906 | { |
3907 | /* level 0x103 SMB_QUERY_FILE_SYSTEM_INFO */ | |
3908 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
3909 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
3910 | FILE_SYSTEM_INFO *response_data; | |
3911 | int rc = 0; | |
3912 | int bytes_returned = 0; | |
3913 | __u16 params, byte_count; | |
3914 | ||
3915 | cFYI(1, ("In QFSInfo")); | |
3916 | QFSInfoRetry: | |
3917 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3918 | (void **) &pSMBr); | |
3919 | if (rc) | |
3920 | return rc; | |
3921 | ||
3922 | params = 2; /* level */ | |
3923 | pSMB->TotalDataCount = 0; | |
3924 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
20962438 | 3925 | pSMB->MaxDataCount = cpu_to_le16(1000); |
1da177e4 LT |
3926 | pSMB->MaxSetupCount = 0; |
3927 | pSMB->Reserved = 0; | |
3928 | pSMB->Flags = 0; | |
3929 | pSMB->Timeout = 0; | |
3930 | pSMB->Reserved2 = 0; | |
3931 | byte_count = params + 1 /* pad */ ; | |
3932 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3933 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3934 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
3935 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
3936 | pSMB->DataCount = 0; | |
3937 | pSMB->DataOffset = 0; | |
3938 | pSMB->SetupCount = 1; | |
3939 | pSMB->Reserved3 = 0; | |
3940 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
3941 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_SIZE_INFO); | |
3942 | pSMB->hdr.smb_buf_length += byte_count; | |
3943 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3944 | ||
3945 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3946 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3947 | if (rc) { | |
20962438 | 3948 | cFYI(1, ("Send error in QFSInfo = %d", rc)); |
1da177e4 LT |
3949 | } else { /* decode response */ |
3950 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3951 | ||
20962438 | 3952 | if (rc || (pSMBr->ByteCount < 24)) |
1da177e4 LT |
3953 | rc = -EIO; /* bad smb */ |
3954 | else { | |
3955 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
1da177e4 LT |
3956 | |
3957 | response_data = | |
3958 | (FILE_SYSTEM_INFO | |
3959 | *) (((char *) &pSMBr->hdr.Protocol) + | |
3960 | data_offset); | |
3961 | FSData->f_bsize = | |
3962 | le32_to_cpu(response_data->BytesPerSector) * | |
3963 | le32_to_cpu(response_data-> | |
3964 | SectorsPerAllocationUnit); | |
3965 | FSData->f_blocks = | |
3966 | le64_to_cpu(response_data->TotalAllocationUnits); | |
3967 | FSData->f_bfree = FSData->f_bavail = | |
3968 | le64_to_cpu(response_data->FreeAllocationUnits); | |
3969 | cFYI(1, | |
3970 | ("Blocks: %lld Free: %lld Block size %ld", | |
3971 | (unsigned long long)FSData->f_blocks, | |
3972 | (unsigned long long)FSData->f_bfree, | |
3973 | FSData->f_bsize)); | |
3974 | } | |
3975 | } | |
3976 | cifs_buf_release(pSMB); | |
3977 | ||
3978 | if (rc == -EAGAIN) | |
3979 | goto QFSInfoRetry; | |
3980 | ||
3981 | return rc; | |
3982 | } | |
3983 | ||
3984 | int | |
737b758c | 3985 | CIFSSMBQFSAttributeInfo(const int xid, struct cifsTconInfo *tcon) |
1da177e4 LT |
3986 | { |
3987 | /* level 0x105 SMB_QUERY_FILE_SYSTEM_INFO */ | |
3988 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
3989 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
3990 | FILE_SYSTEM_ATTRIBUTE_INFO *response_data; | |
3991 | int rc = 0; | |
3992 | int bytes_returned = 0; | |
3993 | __u16 params, byte_count; | |
3994 | ||
3995 | cFYI(1, ("In QFSAttributeInfo")); | |
3996 | QFSAttributeRetry: | |
3997 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3998 | (void **) &pSMBr); | |
3999 | if (rc) | |
4000 | return rc; | |
4001 | ||
4002 | params = 2; /* level */ | |
4003 | pSMB->TotalDataCount = 0; | |
4004 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4005 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find exact max SMB PDU from sess structure BB */ | |
4006 | pSMB->MaxSetupCount = 0; | |
4007 | pSMB->Reserved = 0; | |
4008 | pSMB->Flags = 0; | |
4009 | pSMB->Timeout = 0; | |
4010 | pSMB->Reserved2 = 0; | |
4011 | byte_count = params + 1 /* pad */ ; | |
4012 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
4013 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
4014 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
4015 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
4016 | pSMB->DataCount = 0; | |
4017 | pSMB->DataOffset = 0; | |
4018 | pSMB->SetupCount = 1; | |
4019 | pSMB->Reserved3 = 0; | |
4020 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4021 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_ATTRIBUTE_INFO); | |
4022 | pSMB->hdr.smb_buf_length += byte_count; | |
4023 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4024 | ||
4025 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4026 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4027 | if (rc) { | |
4028 | cERROR(1, ("Send error in QFSAttributeInfo = %d", rc)); | |
4029 | } else { /* decode response */ | |
4030 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4031 | ||
4032 | if (rc || (pSMBr->ByteCount < 13)) { /* BB also check enough bytes returned */ | |
4033 | rc = -EIO; /* bad smb */ | |
4034 | } else { | |
4035 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
4036 | response_data = | |
4037 | (FILE_SYSTEM_ATTRIBUTE_INFO | |
4038 | *) (((char *) &pSMBr->hdr.Protocol) + | |
4039 | data_offset); | |
4040 | memcpy(&tcon->fsAttrInfo, response_data, | |
4041 | sizeof (FILE_SYSTEM_ATTRIBUTE_INFO)); | |
4042 | } | |
4043 | } | |
4044 | cifs_buf_release(pSMB); | |
4045 | ||
4046 | if (rc == -EAGAIN) | |
4047 | goto QFSAttributeRetry; | |
4048 | ||
4049 | return rc; | |
4050 | } | |
4051 | ||
4052 | int | |
737b758c | 4053 | CIFSSMBQFSDeviceInfo(const int xid, struct cifsTconInfo *tcon) |
1da177e4 LT |
4054 | { |
4055 | /* level 0x104 SMB_QUERY_FILE_SYSTEM_INFO */ | |
4056 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4057 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4058 | FILE_SYSTEM_DEVICE_INFO *response_data; | |
4059 | int rc = 0; | |
4060 | int bytes_returned = 0; | |
4061 | __u16 params, byte_count; | |
4062 | ||
4063 | cFYI(1, ("In QFSDeviceInfo")); | |
4064 | QFSDeviceRetry: | |
4065 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4066 | (void **) &pSMBr); | |
4067 | if (rc) | |
4068 | return rc; | |
4069 | ||
4070 | params = 2; /* level */ | |
4071 | pSMB->TotalDataCount = 0; | |
4072 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4073 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find exact max SMB PDU from sess structure BB */ | |
4074 | pSMB->MaxSetupCount = 0; | |
4075 | pSMB->Reserved = 0; | |
4076 | pSMB->Flags = 0; | |
4077 | pSMB->Timeout = 0; | |
4078 | pSMB->Reserved2 = 0; | |
4079 | byte_count = params + 1 /* pad */ ; | |
4080 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
4081 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
4082 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
4083 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
4084 | ||
4085 | pSMB->DataCount = 0; | |
4086 | pSMB->DataOffset = 0; | |
4087 | pSMB->SetupCount = 1; | |
4088 | pSMB->Reserved3 = 0; | |
4089 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4090 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_DEVICE_INFO); | |
4091 | pSMB->hdr.smb_buf_length += byte_count; | |
4092 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4093 | ||
4094 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4095 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4096 | if (rc) { | |
4097 | cFYI(1, ("Send error in QFSDeviceInfo = %d", rc)); | |
4098 | } else { /* decode response */ | |
4099 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4100 | ||
4101 | if (rc || (pSMBr->ByteCount < sizeof (FILE_SYSTEM_DEVICE_INFO))) | |
4102 | rc = -EIO; /* bad smb */ | |
4103 | else { | |
4104 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
4105 | response_data = | |
737b758c SF |
4106 | (FILE_SYSTEM_DEVICE_INFO *) |
4107 | (((char *) &pSMBr->hdr.Protocol) + | |
1da177e4 LT |
4108 | data_offset); |
4109 | memcpy(&tcon->fsDevInfo, response_data, | |
4110 | sizeof (FILE_SYSTEM_DEVICE_INFO)); | |
4111 | } | |
4112 | } | |
4113 | cifs_buf_release(pSMB); | |
4114 | ||
4115 | if (rc == -EAGAIN) | |
4116 | goto QFSDeviceRetry; | |
4117 | ||
4118 | return rc; | |
4119 | } | |
4120 | ||
4121 | int | |
737b758c | 4122 | CIFSSMBQFSUnixInfo(const int xid, struct cifsTconInfo *tcon) |
1da177e4 LT |
4123 | { |
4124 | /* level 0x200 SMB_QUERY_CIFS_UNIX_INFO */ | |
4125 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4126 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4127 | FILE_SYSTEM_UNIX_INFO *response_data; | |
4128 | int rc = 0; | |
4129 | int bytes_returned = 0; | |
4130 | __u16 params, byte_count; | |
4131 | ||
4132 | cFYI(1, ("In QFSUnixInfo")); | |
4133 | QFSUnixRetry: | |
4134 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4135 | (void **) &pSMBr); | |
4136 | if (rc) | |
4137 | return rc; | |
4138 | ||
4139 | params = 2; /* level */ | |
4140 | pSMB->TotalDataCount = 0; | |
4141 | pSMB->DataCount = 0; | |
4142 | pSMB->DataOffset = 0; | |
4143 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4144 | pSMB->MaxDataCount = cpu_to_le16(100); /* BB find exact max SMB PDU from sess structure BB */ | |
4145 | pSMB->MaxSetupCount = 0; | |
4146 | pSMB->Reserved = 0; | |
4147 | pSMB->Flags = 0; | |
4148 | pSMB->Timeout = 0; | |
4149 | pSMB->Reserved2 = 0; | |
4150 | byte_count = params + 1 /* pad */ ; | |
4151 | pSMB->ParameterCount = cpu_to_le16(params); | |
4152 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4153 | pSMB->ParameterOffset = cpu_to_le16(offsetof(struct | |
4154 | smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
4155 | pSMB->SetupCount = 1; | |
4156 | pSMB->Reserved3 = 0; | |
4157 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4158 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_CIFS_UNIX_INFO); | |
4159 | pSMB->hdr.smb_buf_length += byte_count; | |
4160 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4161 | ||
4162 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4163 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4164 | if (rc) { | |
4165 | cERROR(1, ("Send error in QFSUnixInfo = %d", rc)); | |
4166 | } else { /* decode response */ | |
4167 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4168 | ||
4169 | if (rc || (pSMBr->ByteCount < 13)) { | |
4170 | rc = -EIO; /* bad smb */ | |
4171 | } else { | |
4172 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
4173 | response_data = | |
4174 | (FILE_SYSTEM_UNIX_INFO | |
4175 | *) (((char *) &pSMBr->hdr.Protocol) + | |
4176 | data_offset); | |
4177 | memcpy(&tcon->fsUnixInfo, response_data, | |
4178 | sizeof (FILE_SYSTEM_UNIX_INFO)); | |
4179 | } | |
4180 | } | |
4181 | cifs_buf_release(pSMB); | |
4182 | ||
4183 | if (rc == -EAGAIN) | |
4184 | goto QFSUnixRetry; | |
4185 | ||
4186 | ||
4187 | return rc; | |
4188 | } | |
4189 | ||
ac67055e | 4190 | int |
45abc6ee | 4191 | CIFSSMBSetFSUnixInfo(const int xid, struct cifsTconInfo *tcon, __u64 cap) |
ac67055e JA |
4192 | { |
4193 | /* level 0x200 SMB_SET_CIFS_UNIX_INFO */ | |
4194 | TRANSACTION2_SETFSI_REQ *pSMB = NULL; | |
4195 | TRANSACTION2_SETFSI_RSP *pSMBr = NULL; | |
4196 | int rc = 0; | |
4197 | int bytes_returned = 0; | |
4198 | __u16 params, param_offset, offset, byte_count; | |
4199 | ||
4200 | cFYI(1, ("In SETFSUnixInfo")); | |
4201 | SETFSUnixRetry: | |
f26282c9 | 4202 | /* BB switch to small buf init to save memory */ |
ac67055e JA |
4203 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
4204 | (void **) &pSMBr); | |
4205 | if (rc) | |
4206 | return rc; | |
4207 | ||
4208 | params = 4; /* 2 bytes zero followed by info level. */ | |
4209 | pSMB->MaxSetupCount = 0; | |
4210 | pSMB->Reserved = 0; | |
4211 | pSMB->Flags = 0; | |
4212 | pSMB->Timeout = 0; | |
4213 | pSMB->Reserved2 = 0; | |
4214 | param_offset = offsetof(struct smb_com_transaction2_setfsi_req, FileNum) - 4; | |
4215 | offset = param_offset + params; | |
4216 | ||
4217 | pSMB->MaxParameterCount = cpu_to_le16(4); | |
4218 | pSMB->MaxDataCount = cpu_to_le16(100); /* BB find exact max SMB PDU from sess structure BB */ | |
4219 | pSMB->SetupCount = 1; | |
4220 | pSMB->Reserved3 = 0; | |
4221 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FS_INFORMATION); | |
4222 | byte_count = 1 /* pad */ + params + 12; | |
4223 | ||
4224 | pSMB->DataCount = cpu_to_le16(12); | |
4225 | pSMB->ParameterCount = cpu_to_le16(params); | |
4226 | pSMB->TotalDataCount = pSMB->DataCount; | |
4227 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4228 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4229 | pSMB->DataOffset = cpu_to_le16(offset); | |
4230 | ||
4231 | /* Params. */ | |
4232 | pSMB->FileNum = 0; | |
4233 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_CIFS_UNIX_INFO); | |
4234 | ||
4235 | /* Data. */ | |
4236 | pSMB->ClientUnixMajor = cpu_to_le16(CIFS_UNIX_MAJOR_VERSION); | |
4237 | pSMB->ClientUnixMinor = cpu_to_le16(CIFS_UNIX_MINOR_VERSION); | |
4238 | pSMB->ClientUnixCap = cpu_to_le64(cap); | |
4239 | ||
4240 | pSMB->hdr.smb_buf_length += byte_count; | |
4241 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4242 | ||
4243 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4244 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4245 | if (rc) { | |
4246 | cERROR(1, ("Send error in SETFSUnixInfo = %d", rc)); | |
4247 | } else { /* decode response */ | |
4248 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4249 | if (rc) { | |
4250 | rc = -EIO; /* bad smb */ | |
4251 | } | |
4252 | } | |
4253 | cifs_buf_release(pSMB); | |
4254 | ||
4255 | if (rc == -EAGAIN) | |
4256 | goto SETFSUnixRetry; | |
4257 | ||
4258 | return rc; | |
4259 | } | |
4260 | ||
4261 | ||
1da177e4 LT |
4262 | |
4263 | int | |
4264 | CIFSSMBQFSPosixInfo(const int xid, struct cifsTconInfo *tcon, | |
737b758c | 4265 | struct kstatfs *FSData) |
1da177e4 LT |
4266 | { |
4267 | /* level 0x201 SMB_QUERY_CIFS_POSIX_INFO */ | |
4268 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4269 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4270 | FILE_SYSTEM_POSIX_INFO *response_data; | |
4271 | int rc = 0; | |
4272 | int bytes_returned = 0; | |
4273 | __u16 params, byte_count; | |
4274 | ||
4275 | cFYI(1, ("In QFSPosixInfo")); | |
4276 | QFSPosixRetry: | |
4277 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4278 | (void **) &pSMBr); | |
4279 | if (rc) | |
4280 | return rc; | |
4281 | ||
4282 | params = 2; /* level */ | |
4283 | pSMB->TotalDataCount = 0; | |
4284 | pSMB->DataCount = 0; | |
4285 | pSMB->DataOffset = 0; | |
4286 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4287 | pSMB->MaxDataCount = cpu_to_le16(100); /* BB find exact max SMB PDU from sess structure BB */ | |
4288 | pSMB->MaxSetupCount = 0; | |
4289 | pSMB->Reserved = 0; | |
4290 | pSMB->Flags = 0; | |
4291 | pSMB->Timeout = 0; | |
4292 | pSMB->Reserved2 = 0; | |
4293 | byte_count = params + 1 /* pad */ ; | |
4294 | pSMB->ParameterCount = cpu_to_le16(params); | |
4295 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4296 | pSMB->ParameterOffset = cpu_to_le16(offsetof(struct | |
4297 | smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
4298 | pSMB->SetupCount = 1; | |
4299 | pSMB->Reserved3 = 0; | |
4300 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4301 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_POSIX_FS_INFO); | |
4302 | pSMB->hdr.smb_buf_length += byte_count; | |
4303 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4304 | ||
4305 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4306 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4307 | if (rc) { | |
4308 | cFYI(1, ("Send error in QFSUnixInfo = %d", rc)); | |
4309 | } else { /* decode response */ | |
4310 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4311 | ||
4312 | if (rc || (pSMBr->ByteCount < 13)) { | |
4313 | rc = -EIO; /* bad smb */ | |
4314 | } else { | |
4315 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
4316 | response_data = | |
4317 | (FILE_SYSTEM_POSIX_INFO | |
4318 | *) (((char *) &pSMBr->hdr.Protocol) + | |
4319 | data_offset); | |
4320 | FSData->f_bsize = | |
4321 | le32_to_cpu(response_data->BlockSize); | |
4322 | FSData->f_blocks = | |
4323 | le64_to_cpu(response_data->TotalBlocks); | |
4324 | FSData->f_bfree = | |
4325 | le64_to_cpu(response_data->BlocksAvail); | |
70ca734a | 4326 | if(response_data->UserBlocksAvail == cpu_to_le64(-1)) { |
1da177e4 LT |
4327 | FSData->f_bavail = FSData->f_bfree; |
4328 | } else { | |
4329 | FSData->f_bavail = | |
4330 | le64_to_cpu(response_data->UserBlocksAvail); | |
4331 | } | |
70ca734a | 4332 | if(response_data->TotalFileNodes != cpu_to_le64(-1)) |
1da177e4 LT |
4333 | FSData->f_files = |
4334 | le64_to_cpu(response_data->TotalFileNodes); | |
70ca734a | 4335 | if(response_data->FreeFileNodes != cpu_to_le64(-1)) |
1da177e4 LT |
4336 | FSData->f_ffree = |
4337 | le64_to_cpu(response_data->FreeFileNodes); | |
4338 | } | |
4339 | } | |
4340 | cifs_buf_release(pSMB); | |
4341 | ||
4342 | if (rc == -EAGAIN) | |
4343 | goto QFSPosixRetry; | |
4344 | ||
4345 | return rc; | |
4346 | } | |
4347 | ||
4348 | ||
4349 | /* We can not use write of zero bytes trick to | |
4350 | set file size due to need for large file support. Also note that | |
4351 | this SetPathInfo is preferred to SetFileInfo based method in next | |
4352 | routine which is only needed to work around a sharing violation bug | |
4353 | in Samba which this routine can run into */ | |
4354 | ||
4355 | int | |
4356 | CIFSSMBSetEOF(const int xid, struct cifsTconInfo *tcon, const char *fileName, | |
737b758c SF |
4357 | __u64 size, int SetAllocation, |
4358 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
4359 | { |
4360 | struct smb_com_transaction2_spi_req *pSMB = NULL; | |
4361 | struct smb_com_transaction2_spi_rsp *pSMBr = NULL; | |
4362 | struct file_end_of_file_info *parm_data; | |
4363 | int name_len; | |
4364 | int rc = 0; | |
4365 | int bytes_returned = 0; | |
4366 | __u16 params, byte_count, data_count, param_offset, offset; | |
4367 | ||
4368 | cFYI(1, ("In SetEOF")); | |
4369 | SetEOFRetry: | |
4370 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4371 | (void **) &pSMBr); | |
4372 | if (rc) | |
4373 | return rc; | |
4374 | ||
4375 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
4376 | name_len = | |
b1a45695 | 4377 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 4378 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
4379 | name_len++; /* trailing null */ |
4380 | name_len *= 2; | |
3e87d803 | 4381 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
4382 | name_len = strnlen(fileName, PATH_MAX); |
4383 | name_len++; /* trailing null */ | |
4384 | strncpy(pSMB->FileName, fileName, name_len); | |
4385 | } | |
4386 | params = 6 + name_len; | |
4387 | data_count = sizeof (struct file_end_of_file_info); | |
4388 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3e87d803 | 4389 | pSMB->MaxDataCount = cpu_to_le16(4100); |
1da177e4 LT |
4390 | pSMB->MaxSetupCount = 0; |
4391 | pSMB->Reserved = 0; | |
4392 | pSMB->Flags = 0; | |
4393 | pSMB->Timeout = 0; | |
4394 | pSMB->Reserved2 = 0; | |
4395 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
4396 | InformationLevel) - 4; | |
4397 | offset = param_offset + params; | |
4398 | if(SetAllocation) { | |
4399 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) | |
4400 | pSMB->InformationLevel = | |
4401 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO2); | |
4402 | else | |
4403 | pSMB->InformationLevel = | |
4404 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO); | |
4405 | } else /* Set File Size */ { | |
4406 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) | |
4407 | pSMB->InformationLevel = | |
4408 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO2); | |
4409 | else | |
4410 | pSMB->InformationLevel = | |
4411 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO); | |
4412 | } | |
4413 | ||
4414 | parm_data = | |
4415 | (struct file_end_of_file_info *) (((char *) &pSMB->hdr.Protocol) + | |
4416 | offset); | |
4417 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4418 | pSMB->DataOffset = cpu_to_le16(offset); | |
4419 | pSMB->SetupCount = 1; | |
4420 | pSMB->Reserved3 = 0; | |
4421 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
4422 | byte_count = 3 /* pad */ + params + data_count; | |
4423 | pSMB->DataCount = cpu_to_le16(data_count); | |
4424 | pSMB->TotalDataCount = pSMB->DataCount; | |
4425 | pSMB->ParameterCount = cpu_to_le16(params); | |
4426 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4427 | pSMB->Reserved4 = 0; | |
4428 | pSMB->hdr.smb_buf_length += byte_count; | |
4429 | parm_data->FileSize = cpu_to_le64(size); | |
4430 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4431 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4432 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4433 | if (rc) { | |
4434 | cFYI(1, ("SetPathInfo (file size) returned %d", rc)); | |
4435 | } | |
4436 | ||
4437 | cifs_buf_release(pSMB); | |
4438 | ||
4439 | if (rc == -EAGAIN) | |
4440 | goto SetEOFRetry; | |
4441 | ||
4442 | return rc; | |
4443 | } | |
4444 | ||
4445 | int | |
4446 | CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon, __u64 size, | |
4447 | __u16 fid, __u32 pid_of_opener, int SetAllocation) | |
4448 | { | |
4449 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
4450 | struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; | |
4451 | char *data_offset; | |
4452 | struct file_end_of_file_info *parm_data; | |
4453 | int rc = 0; | |
4454 | int bytes_returned = 0; | |
4455 | __u16 params, param_offset, offset, byte_count, count; | |
4456 | ||
4457 | cFYI(1, ("SetFileSize (via SetFileInfo) %lld", | |
4458 | (long long)size)); | |
cd63499c SF |
4459 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
4460 | ||
1da177e4 LT |
4461 | if (rc) |
4462 | return rc; | |
4463 | ||
cd63499c SF |
4464 | pSMBr = (struct smb_com_transaction2_sfi_rsp *)pSMB; |
4465 | ||
1da177e4 LT |
4466 | pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener); |
4467 | pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16)); | |
4468 | ||
4469 | params = 6; | |
4470 | pSMB->MaxSetupCount = 0; | |
4471 | pSMB->Reserved = 0; | |
4472 | pSMB->Flags = 0; | |
4473 | pSMB->Timeout = 0; | |
4474 | pSMB->Reserved2 = 0; | |
4475 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
4476 | offset = param_offset + params; | |
4477 | ||
4478 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
4479 | ||
4480 | count = sizeof(struct file_end_of_file_info); | |
4481 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4482 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB PDU from sess */ | |
4483 | pSMB->SetupCount = 1; | |
4484 | pSMB->Reserved3 = 0; | |
4485 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
4486 | byte_count = 3 /* pad */ + params + count; | |
4487 | pSMB->DataCount = cpu_to_le16(count); | |
4488 | pSMB->ParameterCount = cpu_to_le16(params); | |
4489 | pSMB->TotalDataCount = pSMB->DataCount; | |
4490 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4491 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4492 | parm_data = | |
4493 | (struct file_end_of_file_info *) (((char *) &pSMB->hdr.Protocol) + | |
4494 | offset); | |
4495 | pSMB->DataOffset = cpu_to_le16(offset); | |
4496 | parm_data->FileSize = cpu_to_le64(size); | |
4497 | pSMB->Fid = fid; | |
4498 | if(SetAllocation) { | |
4499 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) | |
4500 | pSMB->InformationLevel = | |
4501 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO2); | |
4502 | else | |
4503 | pSMB->InformationLevel = | |
4504 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO); | |
4505 | } else /* Set File Size */ { | |
4506 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) | |
4507 | pSMB->InformationLevel = | |
4508 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO2); | |
4509 | else | |
4510 | pSMB->InformationLevel = | |
4511 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO); | |
4512 | } | |
4513 | pSMB->Reserved4 = 0; | |
4514 | pSMB->hdr.smb_buf_length += byte_count; | |
4515 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4516 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4517 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4518 | if (rc) { | |
4519 | cFYI(1, | |
4520 | ("Send error in SetFileInfo (SetFileSize) = %d", | |
4521 | rc)); | |
4522 | } | |
4523 | ||
4524 | if (pSMB) | |
cd63499c | 4525 | cifs_small_buf_release(pSMB); |
1da177e4 LT |
4526 | |
4527 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
4528 | since file handle passed in no longer valid */ | |
4529 | ||
4530 | return rc; | |
4531 | } | |
4532 | ||
4533 | /* Some legacy servers such as NT4 require that the file times be set on | |
4534 | an open handle, rather than by pathname - this is awkward due to | |
4535 | potential access conflicts on the open, but it is unavoidable for these | |
4536 | old servers since the only other choice is to go from 100 nanosecond DCE | |
4537 | time and resort to the original setpathinfo level which takes the ancient | |
4538 | DOS time format with 2 second granularity */ | |
4539 | int | |
4540 | CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon, const FILE_BASIC_INFO * data, | |
4541 | __u16 fid) | |
4542 | { | |
4543 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
4544 | struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; | |
4545 | char *data_offset; | |
4546 | int rc = 0; | |
4547 | int bytes_returned = 0; | |
4548 | __u16 params, param_offset, offset, byte_count, count; | |
4549 | ||
4550 | cFYI(1, ("Set Times (via SetFileInfo)")); | |
cd63499c SF |
4551 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
4552 | ||
1da177e4 LT |
4553 | if (rc) |
4554 | return rc; | |
4555 | ||
cd63499c SF |
4556 | pSMBr = (struct smb_com_transaction2_sfi_rsp *)pSMB; |
4557 | ||
1da177e4 LT |
4558 | /* At this point there is no need to override the current pid |
4559 | with the pid of the opener, but that could change if we someday | |
4560 | use an existing handle (rather than opening one on the fly) */ | |
4561 | /* pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener); | |
4562 | pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16));*/ | |
4563 | ||
4564 | params = 6; | |
4565 | pSMB->MaxSetupCount = 0; | |
4566 | pSMB->Reserved = 0; | |
4567 | pSMB->Flags = 0; | |
4568 | pSMB->Timeout = 0; | |
4569 | pSMB->Reserved2 = 0; | |
4570 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
4571 | offset = param_offset + params; | |
4572 | ||
4573 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
4574 | ||
4575 | count = sizeof (FILE_BASIC_INFO); | |
4576 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4577 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB PDU from sess */ | |
4578 | pSMB->SetupCount = 1; | |
4579 | pSMB->Reserved3 = 0; | |
4580 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
4581 | byte_count = 3 /* pad */ + params + count; | |
4582 | pSMB->DataCount = cpu_to_le16(count); | |
4583 | pSMB->ParameterCount = cpu_to_le16(params); | |
4584 | pSMB->TotalDataCount = pSMB->DataCount; | |
4585 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4586 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4587 | pSMB->DataOffset = cpu_to_le16(offset); | |
4588 | pSMB->Fid = fid; | |
4589 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) | |
4590 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO2); | |
4591 | else | |
4592 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO); | |
4593 | pSMB->Reserved4 = 0; | |
4594 | pSMB->hdr.smb_buf_length += byte_count; | |
4595 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4596 | memcpy(data_offset,data,sizeof(FILE_BASIC_INFO)); | |
4597 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4598 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4599 | if (rc) { | |
4600 | cFYI(1,("Send error in Set Time (SetFileInfo) = %d",rc)); | |
4601 | } | |
4602 | ||
cd63499c | 4603 | cifs_small_buf_release(pSMB); |
1da177e4 LT |
4604 | |
4605 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
4606 | since file handle passed in no longer valid */ | |
4607 | ||
4608 | return rc; | |
4609 | } | |
4610 | ||
4611 | ||
4612 | int | |
4613 | CIFSSMBSetTimes(const int xid, struct cifsTconInfo *tcon, const char *fileName, | |
4614 | const FILE_BASIC_INFO * data, | |
737b758c | 4615 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
4616 | { |
4617 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
4618 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
4619 | int name_len; | |
4620 | int rc = 0; | |
4621 | int bytes_returned = 0; | |
4622 | char *data_offset; | |
4623 | __u16 params, param_offset, offset, byte_count, count; | |
4624 | ||
4625 | cFYI(1, ("In SetTimes")); | |
4626 | ||
4627 | SetTimesRetry: | |
4628 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4629 | (void **) &pSMBr); | |
4630 | if (rc) | |
4631 | return rc; | |
4632 | ||
4633 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
4634 | name_len = | |
b1a45695 | 4635 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 4636 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
4637 | name_len++; /* trailing null */ |
4638 | name_len *= 2; | |
4639 | } else { /* BB improve the check for buffer overruns BB */ | |
4640 | name_len = strnlen(fileName, PATH_MAX); | |
4641 | name_len++; /* trailing null */ | |
4642 | strncpy(pSMB->FileName, fileName, name_len); | |
4643 | } | |
4644 | ||
4645 | params = 6 + name_len; | |
4646 | count = sizeof (FILE_BASIC_INFO); | |
4647 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4648 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find exact max SMB PDU from sess structure BB */ | |
4649 | pSMB->MaxSetupCount = 0; | |
4650 | pSMB->Reserved = 0; | |
4651 | pSMB->Flags = 0; | |
4652 | pSMB->Timeout = 0; | |
4653 | pSMB->Reserved2 = 0; | |
4654 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
4655 | InformationLevel) - 4; | |
4656 | offset = param_offset + params; | |
4657 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
4658 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4659 | pSMB->DataOffset = cpu_to_le16(offset); | |
4660 | pSMB->SetupCount = 1; | |
4661 | pSMB->Reserved3 = 0; | |
4662 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
4663 | byte_count = 3 /* pad */ + params + count; | |
4664 | ||
4665 | pSMB->DataCount = cpu_to_le16(count); | |
4666 | pSMB->ParameterCount = cpu_to_le16(params); | |
4667 | pSMB->TotalDataCount = pSMB->DataCount; | |
4668 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4669 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) | |
4670 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO2); | |
4671 | else | |
4672 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO); | |
4673 | pSMB->Reserved4 = 0; | |
4674 | pSMB->hdr.smb_buf_length += byte_count; | |
4675 | memcpy(data_offset, data, sizeof (FILE_BASIC_INFO)); | |
4676 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4677 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4678 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4679 | if (rc) { | |
4680 | cFYI(1, ("SetPathInfo (times) returned %d", rc)); | |
4681 | } | |
4682 | ||
4683 | cifs_buf_release(pSMB); | |
4684 | ||
4685 | if (rc == -EAGAIN) | |
4686 | goto SetTimesRetry; | |
4687 | ||
4688 | return rc; | |
4689 | } | |
4690 | ||
4691 | /* Can not be used to set time stamps yet (due to old DOS time format) */ | |
4692 | /* Can be used to set attributes */ | |
4693 | #if 0 /* Possibly not needed - since it turns out that strangely NT4 has a bug | |
4694 | handling it anyway and NT4 was what we thought it would be needed for | |
4695 | Do not delete it until we prove whether needed for Win9x though */ | |
4696 | int | |
4697 | CIFSSMBSetAttrLegacy(int xid, struct cifsTconInfo *tcon, char *fileName, | |
4698 | __u16 dos_attrs, const struct nls_table *nls_codepage) | |
4699 | { | |
4700 | SETATTR_REQ *pSMB = NULL; | |
4701 | SETATTR_RSP *pSMBr = NULL; | |
4702 | int rc = 0; | |
4703 | int bytes_returned; | |
4704 | int name_len; | |
4705 | ||
4706 | cFYI(1, ("In SetAttrLegacy")); | |
4707 | ||
4708 | SetAttrLgcyRetry: | |
4709 | rc = smb_init(SMB_COM_SETATTR, 8, tcon, (void **) &pSMB, | |
4710 | (void **) &pSMBr); | |
4711 | if (rc) | |
4712 | return rc; | |
4713 | ||
4714 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
4715 | name_len = | |
b1a45695 | 4716 | ConvertToUCS((__le16 *) pSMB->fileName, fileName, |
1da177e4 LT |
4717 | PATH_MAX, nls_codepage); |
4718 | name_len++; /* trailing null */ | |
4719 | name_len *= 2; | |
4720 | } else { /* BB improve the check for buffer overruns BB */ | |
4721 | name_len = strnlen(fileName, PATH_MAX); | |
4722 | name_len++; /* trailing null */ | |
4723 | strncpy(pSMB->fileName, fileName, name_len); | |
4724 | } | |
4725 | pSMB->attr = cpu_to_le16(dos_attrs); | |
4726 | pSMB->BufferFormat = 0x04; | |
4727 | pSMB->hdr.smb_buf_length += name_len + 1; | |
4728 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
4729 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4730 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4731 | if (rc) { | |
4732 | cFYI(1, ("Error in LegacySetAttr = %d", rc)); | |
4733 | } | |
4734 | ||
4735 | cifs_buf_release(pSMB); | |
4736 | ||
4737 | if (rc == -EAGAIN) | |
4738 | goto SetAttrLgcyRetry; | |
4739 | ||
4740 | return rc; | |
4741 | } | |
4742 | #endif /* temporarily unneeded SetAttr legacy function */ | |
4743 | ||
4744 | int | |
4745 | CIFSSMBUnixSetPerms(const int xid, struct cifsTconInfo *tcon, | |
737b758c SF |
4746 | char *fileName, __u64 mode, __u64 uid, __u64 gid, |
4747 | dev_t device, const struct nls_table *nls_codepage, | |
4748 | int remap) | |
1da177e4 LT |
4749 | { |
4750 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
4751 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
4752 | int name_len; | |
4753 | int rc = 0; | |
4754 | int bytes_returned = 0; | |
4755 | FILE_UNIX_BASIC_INFO *data_offset; | |
4756 | __u16 params, param_offset, offset, count, byte_count; | |
4757 | ||
4758 | cFYI(1, ("In SetUID/GID/Mode")); | |
4759 | setPermsRetry: | |
4760 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4761 | (void **) &pSMBr); | |
4762 | if (rc) | |
4763 | return rc; | |
4764 | ||
4765 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
4766 | name_len = | |
b1a45695 | 4767 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 4768 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
4769 | name_len++; /* trailing null */ |
4770 | name_len *= 2; | |
3e87d803 | 4771 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
4772 | name_len = strnlen(fileName, PATH_MAX); |
4773 | name_len++; /* trailing null */ | |
4774 | strncpy(pSMB->FileName, fileName, name_len); | |
4775 | } | |
4776 | ||
4777 | params = 6 + name_len; | |
4778 | count = sizeof (FILE_UNIX_BASIC_INFO); | |
4779 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4780 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find exact max SMB PDU from sess structure BB */ | |
4781 | pSMB->MaxSetupCount = 0; | |
4782 | pSMB->Reserved = 0; | |
4783 | pSMB->Flags = 0; | |
4784 | pSMB->Timeout = 0; | |
4785 | pSMB->Reserved2 = 0; | |
4786 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
4787 | InformationLevel) - 4; | |
4788 | offset = param_offset + params; | |
4789 | data_offset = | |
4790 | (FILE_UNIX_BASIC_INFO *) ((char *) &pSMB->hdr.Protocol + | |
4791 | offset); | |
4792 | memset(data_offset, 0, count); | |
4793 | pSMB->DataOffset = cpu_to_le16(offset); | |
4794 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4795 | pSMB->SetupCount = 1; | |
4796 | pSMB->Reserved3 = 0; | |
4797 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
4798 | byte_count = 3 /* pad */ + params + count; | |
4799 | pSMB->ParameterCount = cpu_to_le16(params); | |
4800 | pSMB->DataCount = cpu_to_le16(count); | |
4801 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4802 | pSMB->TotalDataCount = pSMB->DataCount; | |
4803 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_BASIC); | |
4804 | pSMB->Reserved4 = 0; | |
4805 | pSMB->hdr.smb_buf_length += byte_count; | |
4806 | data_offset->Uid = cpu_to_le64(uid); | |
4807 | data_offset->Gid = cpu_to_le64(gid); | |
4808 | /* better to leave device as zero when it is */ | |
4809 | data_offset->DevMajor = cpu_to_le64(MAJOR(device)); | |
4810 | data_offset->DevMinor = cpu_to_le64(MINOR(device)); | |
4811 | data_offset->Permissions = cpu_to_le64(mode); | |
4812 | ||
4813 | if(S_ISREG(mode)) | |
4814 | data_offset->Type = cpu_to_le32(UNIX_FILE); | |
4815 | else if(S_ISDIR(mode)) | |
4816 | data_offset->Type = cpu_to_le32(UNIX_DIR); | |
4817 | else if(S_ISLNK(mode)) | |
4818 | data_offset->Type = cpu_to_le32(UNIX_SYMLINK); | |
4819 | else if(S_ISCHR(mode)) | |
4820 | data_offset->Type = cpu_to_le32(UNIX_CHARDEV); | |
4821 | else if(S_ISBLK(mode)) | |
4822 | data_offset->Type = cpu_to_le32(UNIX_BLOCKDEV); | |
4823 | else if(S_ISFIFO(mode)) | |
4824 | data_offset->Type = cpu_to_le32(UNIX_FIFO); | |
4825 | else if(S_ISSOCK(mode)) | |
4826 | data_offset->Type = cpu_to_le32(UNIX_SOCKET); | |
4827 | ||
4828 | ||
4829 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4830 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4831 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4832 | if (rc) { | |
4833 | cFYI(1, ("SetPathInfo (perms) returned %d", rc)); | |
4834 | } | |
4835 | ||
4836 | if (pSMB) | |
4837 | cifs_buf_release(pSMB); | |
4838 | if (rc == -EAGAIN) | |
4839 | goto setPermsRetry; | |
4840 | return rc; | |
4841 | } | |
4842 | ||
4843 | int CIFSSMBNotify(const int xid, struct cifsTconInfo *tcon, | |
167a251a SF |
4844 | const int notify_subdirs, const __u16 netfid, |
4845 | __u32 filter, struct file * pfile, int multishot, | |
4846 | const struct nls_table *nls_codepage) | |
1da177e4 LT |
4847 | { |
4848 | int rc = 0; | |
4849 | struct smb_com_transaction_change_notify_req * pSMB = NULL; | |
0a4b92c0 | 4850 | struct smb_com_ntransaction_change_notify_rsp * pSMBr = NULL; |
abb15b8a | 4851 | struct dir_notify_req *dnotify_req; |
1da177e4 LT |
4852 | int bytes_returned; |
4853 | ||
4854 | cFYI(1, ("In CIFSSMBNotify for file handle %d",(int)netfid)); | |
4855 | rc = smb_init(SMB_COM_NT_TRANSACT, 23, tcon, (void **) &pSMB, | |
4856 | (void **) &pSMBr); | |
4857 | if (rc) | |
4858 | return rc; | |
4859 | ||
4860 | pSMB->TotalParameterCount = 0 ; | |
4861 | pSMB->TotalDataCount = 0; | |
4862 | pSMB->MaxParameterCount = cpu_to_le32(2); | |
4863 | /* BB find exact data count max from sess structure BB */ | |
4864 | pSMB->MaxDataCount = 0; /* same in little endian or be */ | |
0a4b92c0 SF |
4865 | /* BB VERIFY verify which is correct for above BB */ |
4866 | pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf - | |
4867 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
4868 | ||
1da177e4 LT |
4869 | pSMB->MaxSetupCount = 4; |
4870 | pSMB->Reserved = 0; | |
4871 | pSMB->ParameterOffset = 0; | |
4872 | pSMB->DataCount = 0; | |
4873 | pSMB->DataOffset = 0; | |
4874 | pSMB->SetupCount = 4; /* single byte does not need le conversion */ | |
4875 | pSMB->SubCommand = cpu_to_le16(NT_TRANSACT_NOTIFY_CHANGE); | |
4876 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
4877 | if(notify_subdirs) | |
4878 | pSMB->WatchTree = 1; /* one byte - no le conversion needed */ | |
4879 | pSMB->Reserved2 = 0; | |
4880 | pSMB->CompletionFilter = cpu_to_le32(filter); | |
4881 | pSMB->Fid = netfid; /* file handle always le */ | |
4882 | pSMB->ByteCount = 0; | |
4883 | ||
4884 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4885 | (struct smb_hdr *) pSMBr, &bytes_returned, -1); | |
4886 | if (rc) { | |
4887 | cFYI(1, ("Error in Notify = %d", rc)); | |
ff5dbd9e SF |
4888 | } else { |
4889 | /* Add file to outstanding requests */ | |
47c786e7 | 4890 | /* BB change to kmem cache alloc */ |
5cbded58 | 4891 | dnotify_req = kmalloc( |
47c786e7 SF |
4892 | sizeof(struct dir_notify_req), |
4893 | GFP_KERNEL); | |
4894 | if(dnotify_req) { | |
4895 | dnotify_req->Pid = pSMB->hdr.Pid; | |
4896 | dnotify_req->PidHigh = pSMB->hdr.PidHigh; | |
4897 | dnotify_req->Mid = pSMB->hdr.Mid; | |
4898 | dnotify_req->Tid = pSMB->hdr.Tid; | |
4899 | dnotify_req->Uid = pSMB->hdr.Uid; | |
4900 | dnotify_req->netfid = netfid; | |
4901 | dnotify_req->pfile = pfile; | |
4902 | dnotify_req->filter = filter; | |
4903 | dnotify_req->multishot = multishot; | |
4904 | spin_lock(&GlobalMid_Lock); | |
4905 | list_add_tail(&dnotify_req->lhead, | |
4906 | &GlobalDnotifyReqList); | |
4907 | spin_unlock(&GlobalMid_Lock); | |
4908 | } else | |
4909 | rc = -ENOMEM; | |
1da177e4 LT |
4910 | } |
4911 | cifs_buf_release(pSMB); | |
4912 | return rc; | |
4913 | } | |
4914 | #ifdef CONFIG_CIFS_XATTR | |
4915 | ssize_t | |
4916 | CIFSSMBQAllEAs(const int xid, struct cifsTconInfo *tcon, | |
4917 | const unsigned char *searchName, | |
4918 | char * EAData, size_t buf_size, | |
737b758c | 4919 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
4920 | { |
4921 | /* BB assumes one setup word */ | |
4922 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
4923 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
4924 | int rc = 0; | |
4925 | int bytes_returned; | |
4926 | int name_len; | |
4927 | struct fea * temp_fea; | |
4928 | char * temp_ptr; | |
4929 | __u16 params, byte_count; | |
4930 | ||
4931 | cFYI(1, ("In Query All EAs path %s", searchName)); | |
4932 | QAllEAsRetry: | |
4933 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4934 | (void **) &pSMBr); | |
4935 | if (rc) | |
4936 | return rc; | |
4937 | ||
4938 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
4939 | name_len = | |
b1a45695 | 4940 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 4941 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
4942 | name_len++; /* trailing null */ |
4943 | name_len *= 2; | |
4944 | } else { /* BB improve the check for buffer overruns BB */ | |
4945 | name_len = strnlen(searchName, PATH_MAX); | |
4946 | name_len++; /* trailing null */ | |
4947 | strncpy(pSMB->FileName, searchName, name_len); | |
4948 | } | |
4949 | ||
4950 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */ ; | |
4951 | pSMB->TotalDataCount = 0; | |
4952 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4953 | pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ | |
4954 | pSMB->MaxSetupCount = 0; | |
4955 | pSMB->Reserved = 0; | |
4956 | pSMB->Flags = 0; | |
4957 | pSMB->Timeout = 0; | |
4958 | pSMB->Reserved2 = 0; | |
4959 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
4960 | struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); | |
4961 | pSMB->DataCount = 0; | |
4962 | pSMB->DataOffset = 0; | |
4963 | pSMB->SetupCount = 1; | |
4964 | pSMB->Reserved3 = 0; | |
4965 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
4966 | byte_count = params + 1 /* pad */ ; | |
4967 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
4968 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
4969 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_QUERY_ALL_EAS); | |
4970 | pSMB->Reserved4 = 0; | |
4971 | pSMB->hdr.smb_buf_length += byte_count; | |
4972 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4973 | ||
4974 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4975 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4976 | if (rc) { | |
4977 | cFYI(1, ("Send error in QueryAllEAs = %d", rc)); | |
4978 | } else { /* decode response */ | |
4979 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4980 | ||
4981 | /* BB also check enough total bytes returned */ | |
4982 | /* BB we need to improve the validity checking | |
4983 | of these trans2 responses */ | |
4984 | if (rc || (pSMBr->ByteCount < 4)) | |
4985 | rc = -EIO; /* bad smb */ | |
4986 | /* else if (pFindData){ | |
4987 | memcpy((char *) pFindData, | |
4988 | (char *) &pSMBr->hdr.Protocol + | |
4989 | data_offset, kl); | |
4990 | }*/ else { | |
4991 | /* check that length of list is not more than bcc */ | |
4992 | /* check that each entry does not go beyond length | |
4993 | of list */ | |
4994 | /* check that each element of each entry does not | |
4995 | go beyond end of list */ | |
4996 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
4997 | struct fealist * ea_response_data; | |
4998 | rc = 0; | |
4999 | /* validate_trans2_offsets() */ | |
5000 | /* BB to check if(start of smb + data_offset > &bcc+ bcc)*/ | |
5001 | ea_response_data = (struct fealist *) | |
5002 | (((char *) &pSMBr->hdr.Protocol) + | |
5003 | data_offset); | |
5004 | name_len = le32_to_cpu(ea_response_data->list_len); | |
5005 | cFYI(1,("ea length %d", name_len)); | |
5006 | if(name_len <= 8) { | |
5007 | /* returned EA size zeroed at top of function */ | |
5008 | cFYI(1,("empty EA list returned from server")); | |
5009 | } else { | |
5010 | /* account for ea list len */ | |
5011 | name_len -= 4; | |
5012 | temp_fea = ea_response_data->list; | |
5013 | temp_ptr = (char *)temp_fea; | |
5014 | while(name_len > 0) { | |
5015 | __u16 value_len; | |
5016 | name_len -= 4; | |
5017 | temp_ptr += 4; | |
5018 | rc += temp_fea->name_len; | |
5019 | /* account for prefix user. and trailing null */ | |
5020 | rc = rc + 5 + 1; | |
5021 | if(rc<(int)buf_size) { | |
5022 | memcpy(EAData,"user.",5); | |
5023 | EAData+=5; | |
5024 | memcpy(EAData,temp_ptr,temp_fea->name_len); | |
5025 | EAData+=temp_fea->name_len; | |
5026 | /* null terminate name */ | |
5027 | *EAData = 0; | |
5028 | EAData = EAData + 1; | |
5029 | } else if(buf_size == 0) { | |
5030 | /* skip copy - calc size only */ | |
5031 | } else { | |
5032 | /* stop before overrun buffer */ | |
5033 | rc = -ERANGE; | |
5034 | break; | |
5035 | } | |
5036 | name_len -= temp_fea->name_len; | |
5037 | temp_ptr += temp_fea->name_len; | |
5038 | /* account for trailing null */ | |
5039 | name_len--; | |
5040 | temp_ptr++; | |
5041 | value_len = le16_to_cpu(temp_fea->value_len); | |
5042 | name_len -= value_len; | |
5043 | temp_ptr += value_len; | |
5044 | /* BB check that temp_ptr is still within smb BB*/ | |
5045 | /* no trailing null to account for in value len */ | |
5046 | /* go on to next EA */ | |
5047 | temp_fea = (struct fea *)temp_ptr; | |
5048 | } | |
5049 | } | |
5050 | } | |
5051 | } | |
5052 | if (pSMB) | |
5053 | cifs_buf_release(pSMB); | |
5054 | if (rc == -EAGAIN) | |
5055 | goto QAllEAsRetry; | |
5056 | ||
5057 | return (ssize_t)rc; | |
5058 | } | |
5059 | ||
5060 | ssize_t CIFSSMBQueryEA(const int xid,struct cifsTconInfo * tcon, | |
5061 | const unsigned char * searchName,const unsigned char * ea_name, | |
5062 | unsigned char * ea_value, size_t buf_size, | |
737b758c | 5063 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
5064 | { |
5065 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
5066 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
5067 | int rc = 0; | |
5068 | int bytes_returned; | |
5069 | int name_len; | |
5070 | struct fea * temp_fea; | |
5071 | char * temp_ptr; | |
5072 | __u16 params, byte_count; | |
5073 | ||
5074 | cFYI(1, ("In Query EA path %s", searchName)); | |
5075 | QEARetry: | |
5076 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
5077 | (void **) &pSMBr); | |
5078 | if (rc) | |
5079 | return rc; | |
5080 | ||
5081 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
5082 | name_len = | |
b1a45695 | 5083 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 5084 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
5085 | name_len++; /* trailing null */ |
5086 | name_len *= 2; | |
5087 | } else { /* BB improve the check for buffer overruns BB */ | |
5088 | name_len = strnlen(searchName, PATH_MAX); | |
5089 | name_len++; /* trailing null */ | |
5090 | strncpy(pSMB->FileName, searchName, name_len); | |
5091 | } | |
5092 | ||
5093 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */ ; | |
5094 | pSMB->TotalDataCount = 0; | |
5095 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
5096 | pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ | |
5097 | pSMB->MaxSetupCount = 0; | |
5098 | pSMB->Reserved = 0; | |
5099 | pSMB->Flags = 0; | |
5100 | pSMB->Timeout = 0; | |
5101 | pSMB->Reserved2 = 0; | |
5102 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
5103 | struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); | |
5104 | pSMB->DataCount = 0; | |
5105 | pSMB->DataOffset = 0; | |
5106 | pSMB->SetupCount = 1; | |
5107 | pSMB->Reserved3 = 0; | |
5108 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
5109 | byte_count = params + 1 /* pad */ ; | |
5110 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
5111 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
5112 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_QUERY_ALL_EAS); | |
5113 | pSMB->Reserved4 = 0; | |
5114 | pSMB->hdr.smb_buf_length += byte_count; | |
5115 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
5116 | ||
5117 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
5118 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
5119 | if (rc) { | |
5120 | cFYI(1, ("Send error in Query EA = %d", rc)); | |
5121 | } else { /* decode response */ | |
5122 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
5123 | ||
5124 | /* BB also check enough total bytes returned */ | |
5125 | /* BB we need to improve the validity checking | |
5126 | of these trans2 responses */ | |
5127 | if (rc || (pSMBr->ByteCount < 4)) | |
5128 | rc = -EIO; /* bad smb */ | |
5129 | /* else if (pFindData){ | |
5130 | memcpy((char *) pFindData, | |
5131 | (char *) &pSMBr->hdr.Protocol + | |
5132 | data_offset, kl); | |
5133 | }*/ else { | |
5134 | /* check that length of list is not more than bcc */ | |
5135 | /* check that each entry does not go beyond length | |
5136 | of list */ | |
5137 | /* check that each element of each entry does not | |
5138 | go beyond end of list */ | |
5139 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
5140 | struct fealist * ea_response_data; | |
5141 | rc = -ENODATA; | |
5142 | /* validate_trans2_offsets() */ | |
5143 | /* BB to check if(start of smb + data_offset > &bcc+ bcc)*/ | |
5144 | ea_response_data = (struct fealist *) | |
5145 | (((char *) &pSMBr->hdr.Protocol) + | |
5146 | data_offset); | |
5147 | name_len = le32_to_cpu(ea_response_data->list_len); | |
5148 | cFYI(1,("ea length %d", name_len)); | |
5149 | if(name_len <= 8) { | |
5150 | /* returned EA size zeroed at top of function */ | |
5151 | cFYI(1,("empty EA list returned from server")); | |
5152 | } else { | |
5153 | /* account for ea list len */ | |
5154 | name_len -= 4; | |
5155 | temp_fea = ea_response_data->list; | |
5156 | temp_ptr = (char *)temp_fea; | |
5157 | /* loop through checking if we have a matching | |
5158 | name and then return the associated value */ | |
5159 | while(name_len > 0) { | |
5160 | __u16 value_len; | |
5161 | name_len -= 4; | |
5162 | temp_ptr += 4; | |
5163 | value_len = le16_to_cpu(temp_fea->value_len); | |
5164 | /* BB validate that value_len falls within SMB, | |
5165 | even though maximum for name_len is 255 */ | |
5166 | if(memcmp(temp_fea->name,ea_name, | |
5167 | temp_fea->name_len) == 0) { | |
5168 | /* found a match */ | |
5169 | rc = value_len; | |
5170 | /* account for prefix user. and trailing null */ | |
5171 | if(rc<=(int)buf_size) { | |
5172 | memcpy(ea_value, | |
5173 | temp_fea->name+temp_fea->name_len+1, | |
5174 | rc); | |
5175 | /* ea values, unlike ea names, | |
5176 | are not null terminated */ | |
5177 | } else if(buf_size == 0) { | |
5178 | /* skip copy - calc size only */ | |
5179 | } else { | |
5180 | /* stop before overrun buffer */ | |
5181 | rc = -ERANGE; | |
5182 | } | |
5183 | break; | |
5184 | } | |
5185 | name_len -= temp_fea->name_len; | |
5186 | temp_ptr += temp_fea->name_len; | |
5187 | /* account for trailing null */ | |
5188 | name_len--; | |
5189 | temp_ptr++; | |
5190 | name_len -= value_len; | |
5191 | temp_ptr += value_len; | |
5192 | /* no trailing null to account for in value len */ | |
5193 | /* go on to next EA */ | |
5194 | temp_fea = (struct fea *)temp_ptr; | |
5195 | } | |
5196 | } | |
5197 | } | |
5198 | } | |
5199 | if (pSMB) | |
5200 | cifs_buf_release(pSMB); | |
5201 | if (rc == -EAGAIN) | |
5202 | goto QEARetry; | |
5203 | ||
5204 | return (ssize_t)rc; | |
5205 | } | |
5206 | ||
5207 | int | |
5208 | CIFSSMBSetEA(const int xid, struct cifsTconInfo *tcon, const char *fileName, | |
5209 | const char * ea_name, const void * ea_value, | |
737b758c SF |
5210 | const __u16 ea_value_len, const struct nls_table *nls_codepage, |
5211 | int remap) | |
1da177e4 LT |
5212 | { |
5213 | struct smb_com_transaction2_spi_req *pSMB = NULL; | |
5214 | struct smb_com_transaction2_spi_rsp *pSMBr = NULL; | |
5215 | struct fealist *parm_data; | |
5216 | int name_len; | |
5217 | int rc = 0; | |
5218 | int bytes_returned = 0; | |
5219 | __u16 params, param_offset, byte_count, offset, count; | |
5220 | ||
5221 | cFYI(1, ("In SetEA")); | |
5222 | SetEARetry: | |
5223 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
5224 | (void **) &pSMBr); | |
5225 | if (rc) | |
5226 | return rc; | |
5227 | ||
5228 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
5229 | name_len = | |
b1a45695 | 5230 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 5231 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
5232 | name_len++; /* trailing null */ |
5233 | name_len *= 2; | |
5234 | } else { /* BB improve the check for buffer overruns BB */ | |
5235 | name_len = strnlen(fileName, PATH_MAX); | |
5236 | name_len++; /* trailing null */ | |
5237 | strncpy(pSMB->FileName, fileName, name_len); | |
5238 | } | |
5239 | ||
5240 | params = 6 + name_len; | |
5241 | ||
5242 | /* done calculating parms using name_len of file name, | |
5243 | now use name_len to calculate length of ea name | |
5244 | we are going to create in the inode xattrs */ | |
5245 | if(ea_name == NULL) | |
5246 | name_len = 0; | |
5247 | else | |
5248 | name_len = strnlen(ea_name,255); | |
5249 | ||
5250 | count = sizeof(*parm_data) + ea_value_len + name_len + 1; | |
5251 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
5252 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB size from sess */ | |
5253 | pSMB->MaxSetupCount = 0; | |
5254 | pSMB->Reserved = 0; | |
5255 | pSMB->Flags = 0; | |
5256 | pSMB->Timeout = 0; | |
5257 | pSMB->Reserved2 = 0; | |
5258 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
5259 | InformationLevel) - 4; | |
5260 | offset = param_offset + params; | |
5261 | pSMB->InformationLevel = | |
5262 | cpu_to_le16(SMB_SET_FILE_EA); | |
5263 | ||
5264 | parm_data = | |
5265 | (struct fealist *) (((char *) &pSMB->hdr.Protocol) + | |
5266 | offset); | |
5267 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
5268 | pSMB->DataOffset = cpu_to_le16(offset); | |
5269 | pSMB->SetupCount = 1; | |
5270 | pSMB->Reserved3 = 0; | |
5271 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
5272 | byte_count = 3 /* pad */ + params + count; | |
5273 | pSMB->DataCount = cpu_to_le16(count); | |
5274 | parm_data->list_len = cpu_to_le32(count); | |
5275 | parm_data->list[0].EA_flags = 0; | |
5276 | /* we checked above that name len is less than 255 */ | |
53b3531b | 5277 | parm_data->list[0].name_len = (__u8)name_len; |
1da177e4 LT |
5278 | /* EA names are always ASCII */ |
5279 | if(ea_name) | |
5280 | strncpy(parm_data->list[0].name,ea_name,name_len); | |
5281 | parm_data->list[0].name[name_len] = 0; | |
5282 | parm_data->list[0].value_len = cpu_to_le16(ea_value_len); | |
5283 | /* caller ensures that ea_value_len is less than 64K but | |
5284 | we need to ensure that it fits within the smb */ | |
5285 | ||
5286 | /*BB add length check that it would fit in negotiated SMB buffer size BB */ | |
5287 | /* if(ea_value_len > buffer_size - 512 (enough for header)) */ | |
5288 | if(ea_value_len) | |
5289 | memcpy(parm_data->list[0].name+name_len+1,ea_value,ea_value_len); | |
5290 | ||
5291 | pSMB->TotalDataCount = pSMB->DataCount; | |
5292 | pSMB->ParameterCount = cpu_to_le16(params); | |
5293 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
5294 | pSMB->Reserved4 = 0; | |
5295 | pSMB->hdr.smb_buf_length += byte_count; | |
5296 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
5297 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
5298 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
5299 | if (rc) { | |
5300 | cFYI(1, ("SetPathInfo (EA) returned %d", rc)); | |
5301 | } | |
5302 | ||
5303 | cifs_buf_release(pSMB); | |
5304 | ||
5305 | if (rc == -EAGAIN) | |
5306 | goto SetEARetry; | |
5307 | ||
5308 | return rc; | |
5309 | } | |
5310 | ||
5311 | #endif |