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1da177e4 LT |
1 | /* |
2 | * fs/cifs/cifssmb.c | |
3 | * | |
4 | * Copyright (C) International Business Machines Corp., 2002,2005 | |
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" | |
40 | ||
41 | #ifdef CONFIG_CIFS_POSIX | |
42 | static struct { | |
43 | int index; | |
44 | char *name; | |
45 | } protocols[] = { | |
46 | {CIFS_PROT, "\2NT LM 0.12"}, | |
47 | {CIFS_PROT, "\2POSIX 2"}, | |
48 | {BAD_PROT, "\2"} | |
49 | }; | |
50 | #else | |
51 | static struct { | |
52 | int index; | |
53 | char *name; | |
54 | } protocols[] = { | |
55 | {CIFS_PROT, "\2NT LM 0.12"}, | |
56 | {BAD_PROT, "\2"} | |
57 | }; | |
58 | #endif | |
59 | ||
60 | ||
61 | /* Mark as invalid, all open files on tree connections since they | |
62 | were closed when session to server was lost */ | |
63 | static void mark_open_files_invalid(struct cifsTconInfo * pTcon) | |
64 | { | |
65 | struct cifsFileInfo *open_file = NULL; | |
66 | struct list_head * tmp; | |
67 | struct list_head * tmp1; | |
68 | ||
69 | /* list all files open on tree connection and mark them invalid */ | |
70 | write_lock(&GlobalSMBSeslock); | |
71 | list_for_each_safe(tmp, tmp1, &pTcon->openFileList) { | |
72 | open_file = list_entry(tmp,struct cifsFileInfo, tlist); | |
73 | if(open_file) { | |
74 | open_file->invalidHandle = TRUE; | |
75 | } | |
76 | } | |
77 | write_unlock(&GlobalSMBSeslock); | |
09d1db5c SF |
78 | /* BB Add call to invalidate_inodes(sb) for all superblocks mounted |
79 | to this tcon */ | |
1da177e4 LT |
80 | } |
81 | ||
82 | /* If the return code is zero, this function must fill in request_buf pointer */ | |
83 | static int | |
84 | small_smb_init(int smb_command, int wct, struct cifsTconInfo *tcon, | |
85 | void **request_buf /* returned */) | |
86 | { | |
87 | int rc = 0; | |
88 | ||
89 | /* SMBs NegProt, SessSetup, uLogoff do not have tcon yet so | |
90 | check for tcp and smb session status done differently | |
91 | for those three - in the calling routine */ | |
92 | if(tcon) { | |
31ca3bc3 SF |
93 | if((tcon->ses) && (tcon->ses->status != CifsExiting) && |
94 | (tcon->ses->server)){ | |
1da177e4 LT |
95 | struct nls_table *nls_codepage; |
96 | /* Give Demultiplex thread up to 10 seconds to | |
09d1db5c SF |
97 | reconnect, should be greater than cifs socket |
98 | timeout which is 7 seconds */ | |
1da177e4 LT |
99 | while(tcon->ses->server->tcpStatus == CifsNeedReconnect) { |
100 | wait_event_interruptible_timeout(tcon->ses->server->response_q, | |
101 | (tcon->ses->server->tcpStatus == CifsGood), 10 * HZ); | |
102 | if(tcon->ses->server->tcpStatus == CifsNeedReconnect) { | |
103 | /* on "soft" mounts we wait once */ | |
104 | if((tcon->retry == FALSE) || | |
105 | (tcon->ses->status == CifsExiting)) { | |
106 | cFYI(1,("gave up waiting on reconnect in smb_init")); | |
107 | return -EHOSTDOWN; | |
09d1db5c SF |
108 | } /* else "hard" mount - keep retrying |
109 | until process is killed or server | |
110 | comes back on-line */ | |
1da177e4 LT |
111 | } else /* TCP session is reestablished now */ |
112 | break; | |
113 | ||
114 | } | |
115 | ||
116 | nls_codepage = load_nls_default(); | |
117 | /* need to prevent multiple threads trying to | |
118 | simultaneously reconnect the same SMB session */ | |
119 | down(&tcon->ses->sesSem); | |
120 | if(tcon->ses->status == CifsNeedReconnect) | |
09d1db5c SF |
121 | rc = cifs_setup_session(0, tcon->ses, |
122 | nls_codepage); | |
1da177e4 LT |
123 | if(!rc && (tcon->tidStatus == CifsNeedReconnect)) { |
124 | mark_open_files_invalid(tcon); | |
09d1db5c SF |
125 | rc = CIFSTCon(0, tcon->ses, tcon->treeName, tcon |
126 | , nls_codepage); | |
1da177e4 LT |
127 | up(&tcon->ses->sesSem); |
128 | if(rc == 0) | |
129 | atomic_inc(&tconInfoReconnectCount); | |
130 | ||
131 | cFYI(1, ("reconnect tcon rc = %d", rc)); | |
132 | /* Removed call to reopen open files here - | |
09d1db5c SF |
133 | it is safer (and faster) to reopen files |
134 | one at a time as needed in read and write */ | |
1da177e4 LT |
135 | |
136 | /* Check if handle based operation so we | |
09d1db5c SF |
137 | know whether we can continue or not without |
138 | returning to caller to reset file handle */ | |
1da177e4 LT |
139 | switch(smb_command) { |
140 | case SMB_COM_READ_ANDX: | |
141 | case SMB_COM_WRITE_ANDX: | |
142 | case SMB_COM_CLOSE: | |
143 | case SMB_COM_FIND_CLOSE2: | |
144 | case SMB_COM_LOCKING_ANDX: { | |
145 | unload_nls(nls_codepage); | |
146 | return -EAGAIN; | |
147 | } | |
148 | } | |
149 | } else { | |
150 | up(&tcon->ses->sesSem); | |
151 | } | |
152 | unload_nls(nls_codepage); | |
153 | ||
154 | } else { | |
155 | return -EIO; | |
156 | } | |
157 | } | |
158 | if(rc) | |
159 | return rc; | |
160 | ||
161 | *request_buf = cifs_small_buf_get(); | |
162 | if (*request_buf == NULL) { | |
163 | /* BB should we add a retry in here if not a writepage? */ | |
164 | return -ENOMEM; | |
165 | } | |
166 | ||
167 | header_assemble((struct smb_hdr *) *request_buf, smb_command, tcon,wct); | |
168 | ||
169 | #ifdef CONFIG_CIFS_STATS | |
170 | if(tcon != NULL) { | |
171 | atomic_inc(&tcon->num_smbs_sent); | |
172 | } | |
173 | #endif /* CONFIG_CIFS_STATS */ | |
174 | return rc; | |
175 | } | |
176 | ||
177 | /* If the return code is zero, this function must fill in request_buf pointer */ | |
178 | static int | |
179 | smb_init(int smb_command, int wct, struct cifsTconInfo *tcon, | |
180 | void **request_buf /* returned */ , | |
181 | void **response_buf /* returned */ ) | |
182 | { | |
183 | int rc = 0; | |
184 | ||
185 | /* SMBs NegProt, SessSetup, uLogoff do not have tcon yet so | |
186 | check for tcp and smb session status done differently | |
187 | for those three - in the calling routine */ | |
188 | if(tcon) { | |
31ca3bc3 SF |
189 | if((tcon->ses) && (tcon->ses->status != CifsExiting) && |
190 | (tcon->ses->server)){ | |
1da177e4 | 191 | struct nls_table *nls_codepage; |
09d1db5c SF |
192 | /* Give Demultiplex thread up to 10 seconds to |
193 | reconnect, should be greater than cifs socket | |
194 | timeout which is 7 seconds */ | |
1da177e4 LT |
195 | while(tcon->ses->server->tcpStatus == CifsNeedReconnect) { |
196 | wait_event_interruptible_timeout(tcon->ses->server->response_q, | |
197 | (tcon->ses->server->tcpStatus == CifsGood), 10 * HZ); | |
09d1db5c SF |
198 | if(tcon->ses->server->tcpStatus == |
199 | CifsNeedReconnect) { | |
1da177e4 LT |
200 | /* on "soft" mounts we wait once */ |
201 | if((tcon->retry == FALSE) || | |
202 | (tcon->ses->status == CifsExiting)) { | |
203 | cFYI(1,("gave up waiting on reconnect in smb_init")); | |
204 | return -EHOSTDOWN; | |
09d1db5c SF |
205 | } /* else "hard" mount - keep retrying |
206 | until process is killed or server | |
207 | comes on-line */ | |
1da177e4 LT |
208 | } else /* TCP session is reestablished now */ |
209 | break; | |
210 | ||
211 | } | |
212 | ||
213 | nls_codepage = load_nls_default(); | |
214 | /* need to prevent multiple threads trying to | |
215 | simultaneously reconnect the same SMB session */ | |
216 | down(&tcon->ses->sesSem); | |
217 | if(tcon->ses->status == CifsNeedReconnect) | |
09d1db5c SF |
218 | rc = cifs_setup_session(0, tcon->ses, |
219 | nls_codepage); | |
1da177e4 LT |
220 | if(!rc && (tcon->tidStatus == CifsNeedReconnect)) { |
221 | mark_open_files_invalid(tcon); | |
09d1db5c SF |
222 | rc = CIFSTCon(0, tcon->ses, tcon->treeName, |
223 | tcon, nls_codepage); | |
1da177e4 LT |
224 | up(&tcon->ses->sesSem); |
225 | if(rc == 0) | |
226 | atomic_inc(&tconInfoReconnectCount); | |
227 | ||
228 | cFYI(1, ("reconnect tcon rc = %d", rc)); | |
229 | /* Removed call to reopen open files here - | |
09d1db5c SF |
230 | it is safer (and faster) to reopen files |
231 | one at a time as needed in read and write */ | |
1da177e4 LT |
232 | |
233 | /* Check if handle based operation so we | |
09d1db5c SF |
234 | know whether we can continue or not without |
235 | returning to caller to reset file handle */ | |
1da177e4 LT |
236 | switch(smb_command) { |
237 | case SMB_COM_READ_ANDX: | |
238 | case SMB_COM_WRITE_ANDX: | |
239 | case SMB_COM_CLOSE: | |
240 | case SMB_COM_FIND_CLOSE2: | |
241 | case SMB_COM_LOCKING_ANDX: { | |
242 | unload_nls(nls_codepage); | |
243 | return -EAGAIN; | |
244 | } | |
245 | } | |
246 | } else { | |
247 | up(&tcon->ses->sesSem); | |
248 | } | |
249 | unload_nls(nls_codepage); | |
250 | ||
251 | } else { | |
252 | return -EIO; | |
253 | } | |
254 | } | |
255 | if(rc) | |
256 | return rc; | |
257 | ||
258 | *request_buf = cifs_buf_get(); | |
259 | if (*request_buf == NULL) { | |
260 | /* BB should we add a retry in here if not a writepage? */ | |
261 | return -ENOMEM; | |
262 | } | |
263 | /* Although the original thought was we needed the response buf for */ | |
264 | /* potential retries of smb operations it turns out we can determine */ | |
265 | /* from the mid flags when the request buffer can be resent without */ | |
266 | /* having to use a second distinct buffer for the response */ | |
267 | *response_buf = *request_buf; | |
268 | ||
269 | header_assemble((struct smb_hdr *) *request_buf, smb_command, tcon, | |
270 | wct /*wct */ ); | |
271 | ||
272 | #ifdef CONFIG_CIFS_STATS | |
273 | if(tcon != NULL) { | |
274 | atomic_inc(&tcon->num_smbs_sent); | |
275 | } | |
276 | #endif /* CONFIG_CIFS_STATS */ | |
277 | return rc; | |
278 | } | |
279 | ||
280 | static int validate_t2(struct smb_t2_rsp * pSMB) | |
281 | { | |
282 | int rc = -EINVAL; | |
283 | int total_size; | |
284 | char * pBCC; | |
285 | ||
286 | /* check for plausible wct, bcc and t2 data and parm sizes */ | |
287 | /* check for parm and data offset going beyond end of smb */ | |
288 | if(pSMB->hdr.WordCount >= 10) { | |
289 | if((le16_to_cpu(pSMB->t2_rsp.ParameterOffset) <= 1024) && | |
290 | (le16_to_cpu(pSMB->t2_rsp.DataOffset) <= 1024)) { | |
291 | /* check that bcc is at least as big as parms + data */ | |
292 | /* check that bcc is less than negotiated smb buffer */ | |
293 | total_size = le16_to_cpu(pSMB->t2_rsp.ParameterCount); | |
294 | if(total_size < 512) { | |
295 | total_size+=le16_to_cpu(pSMB->t2_rsp.DataCount); | |
296 | /* BCC le converted in SendReceive */ | |
09d1db5c SF |
297 | pBCC = (pSMB->hdr.WordCount * 2) + |
298 | sizeof(struct smb_hdr) + | |
1da177e4 LT |
299 | (char *)pSMB; |
300 | if((total_size <= (*(u16 *)pBCC)) && | |
301 | (total_size < | |
302 | CIFSMaxBufSize+MAX_CIFS_HDR_SIZE)) { | |
303 | return 0; | |
304 | } | |
305 | ||
306 | } | |
307 | } | |
308 | } | |
309 | cifs_dump_mem("Invalid transact2 SMB: ",(char *)pSMB, | |
310 | sizeof(struct smb_t2_rsp) + 16); | |
311 | return rc; | |
312 | } | |
313 | int | |
314 | CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) | |
315 | { | |
316 | NEGOTIATE_REQ *pSMB; | |
317 | NEGOTIATE_RSP *pSMBr; | |
318 | int rc = 0; | |
319 | int bytes_returned; | |
320 | struct TCP_Server_Info * server; | |
321 | u16 count; | |
322 | ||
323 | if(ses->server) | |
324 | server = ses->server; | |
325 | else { | |
326 | rc = -EIO; | |
327 | return rc; | |
328 | } | |
329 | rc = smb_init(SMB_COM_NEGOTIATE, 0, NULL /* no tcon yet */ , | |
330 | (void **) &pSMB, (void **) &pSMBr); | |
331 | if (rc) | |
332 | return rc; | |
333 | ||
334 | pSMB->hdr.Flags2 |= SMBFLG2_UNICODE; | |
335 | if (extended_security) | |
336 | pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC; | |
337 | ||
338 | count = strlen(protocols[0].name) + 1; | |
339 | strncpy(pSMB->DialectsArray, protocols[0].name, 30); | |
340 | /* null guaranteed to be at end of source and target buffers anyway */ | |
341 | ||
342 | pSMB->hdr.smb_buf_length += count; | |
343 | pSMB->ByteCount = cpu_to_le16(count); | |
344 | ||
345 | rc = SendReceive(xid, ses, (struct smb_hdr *) pSMB, | |
346 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
347 | if (rc == 0) { | |
348 | server->secMode = pSMBr->SecurityMode; | |
09d1db5c SF |
349 | server->secType = NTLM; /* BB override default for |
350 | NTLMv2 or kerberos v5 */ | |
351 | /* one byte - no need to convert this or EncryptionKeyLen | |
352 | from little endian */ | |
1da177e4 LT |
353 | server->maxReq = le16_to_cpu(pSMBr->MaxMpxCount); |
354 | /* probably no need to store and check maxvcs */ | |
355 | server->maxBuf = | |
356 | min(le32_to_cpu(pSMBr->MaxBufferSize), | |
357 | (__u32) CIFSMaxBufSize + MAX_CIFS_HDR_SIZE); | |
358 | server->maxRw = le32_to_cpu(pSMBr->MaxRawSize); | |
359 | cFYI(0, ("Max buf = %d ", ses->server->maxBuf)); | |
360 | GETU32(ses->server->sessid) = le32_to_cpu(pSMBr->SessionKey); | |
361 | server->capabilities = le32_to_cpu(pSMBr->Capabilities); | |
362 | server->timeZone = le16_to_cpu(pSMBr->ServerTimeZone); | |
363 | /* BB with UTC do we ever need to be using srvr timezone? */ | |
364 | if (pSMBr->EncryptionKeyLength == CIFS_CRYPTO_KEY_SIZE) { | |
365 | memcpy(server->cryptKey, pSMBr->u.EncryptionKey, | |
366 | CIFS_CRYPTO_KEY_SIZE); | |
367 | } else if ((pSMBr->hdr.Flags2 & SMBFLG2_EXT_SEC) | |
368 | && (pSMBr->EncryptionKeyLength == 0)) { | |
369 | /* decode security blob */ | |
370 | } else | |
371 | rc = -EIO; | |
372 | ||
373 | /* BB might be helpful to save off the domain of server here */ | |
374 | ||
375 | if ((pSMBr->hdr.Flags2 & SMBFLG2_EXT_SEC) && | |
376 | (server->capabilities & CAP_EXTENDED_SECURITY)) { | |
377 | count = pSMBr->ByteCount; | |
378 | if (count < 16) | |
379 | rc = -EIO; | |
380 | else if (count == 16) { | |
381 | server->secType = RawNTLMSSP; | |
382 | if (server->socketUseCount.counter > 1) { | |
383 | if (memcmp | |
384 | (server->server_GUID, | |
385 | pSMBr->u.extended_response. | |
386 | GUID, 16) != 0) { | |
387 | cFYI(1, | |
09d1db5c | 388 | ("UID of server does not match previous connection to same ip address")); |
1da177e4 LT |
389 | memcpy(server-> |
390 | server_GUID, | |
391 | pSMBr->u. | |
392 | extended_response. | |
393 | GUID, 16); | |
394 | } | |
395 | } else | |
396 | memcpy(server->server_GUID, | |
397 | pSMBr->u.extended_response. | |
398 | GUID, 16); | |
399 | } else { | |
400 | rc = decode_negTokenInit(pSMBr->u. | |
401 | extended_response. | |
402 | SecurityBlob, | |
403 | count - 16, | |
404 | &server->secType); | |
405 | if(rc == 1) { | |
406 | /* BB Need to fill struct for sessetup here */ | |
407 | rc = -EOPNOTSUPP; | |
408 | } else { | |
409 | rc = -EINVAL; | |
410 | } | |
411 | } | |
412 | } else | |
413 | server->capabilities &= ~CAP_EXTENDED_SECURITY; | |
414 | if(sign_CIFS_PDUs == FALSE) { | |
415 | if(server->secMode & SECMODE_SIGN_REQUIRED) | |
416 | cERROR(1, | |
417 | ("Server requires /proc/fs/cifs/PacketSigningEnabled")); | |
418 | server->secMode &= ~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED); | |
419 | } else if(sign_CIFS_PDUs == 1) { | |
420 | if((server->secMode & SECMODE_SIGN_REQUIRED) == 0) | |
421 | server->secMode &= ~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED); | |
422 | } | |
423 | ||
424 | } | |
425 | if (pSMB) | |
426 | cifs_buf_release(pSMB); | |
427 | return rc; | |
428 | } | |
429 | ||
430 | int | |
431 | CIFSSMBTDis(const int xid, struct cifsTconInfo *tcon) | |
432 | { | |
433 | struct smb_hdr *smb_buffer; | |
434 | struct smb_hdr *smb_buffer_response; /* BB removeme BB */ | |
435 | int rc = 0; | |
436 | int length; | |
437 | ||
438 | cFYI(1, ("In tree disconnect")); | |
439 | /* | |
440 | * If last user of the connection and | |
441 | * connection alive - disconnect it | |
442 | * If this is the last connection on the server session disconnect it | |
443 | * (and inside session disconnect we should check if tcp socket needs | |
444 | * to be freed and kernel thread woken up). | |
445 | */ | |
446 | if (tcon) | |
447 | down(&tcon->tconSem); | |
448 | else | |
449 | return -EIO; | |
450 | ||
451 | atomic_dec(&tcon->useCount); | |
452 | if (atomic_read(&tcon->useCount) > 0) { | |
453 | up(&tcon->tconSem); | |
454 | return -EBUSY; | |
455 | } | |
456 | ||
457 | /* No need to return error on this operation if tid invalidated and | |
458 | closed on server already e.g. due to tcp session crashing */ | |
459 | if(tcon->tidStatus == CifsNeedReconnect) { | |
460 | up(&tcon->tconSem); | |
461 | return 0; | |
462 | } | |
463 | ||
464 | if((tcon->ses == NULL) || (tcon->ses->server == NULL)) { | |
465 | up(&tcon->tconSem); | |
466 | return -EIO; | |
467 | } | |
09d1db5c SF |
468 | rc = small_smb_init(SMB_COM_TREE_DISCONNECT, 0, tcon, |
469 | (void **)&smb_buffer); | |
1da177e4 LT |
470 | if (rc) { |
471 | up(&tcon->tconSem); | |
472 | return rc; | |
473 | } else { | |
474 | smb_buffer_response = smb_buffer; /* BB removeme BB */ | |
cd63499c | 475 | } |
1da177e4 LT |
476 | rc = SendReceive(xid, tcon->ses, smb_buffer, smb_buffer_response, |
477 | &length, 0); | |
478 | if (rc) | |
966ca923 | 479 | cFYI(1, ("Tree disconnect failed %d", rc)); |
1da177e4 LT |
480 | |
481 | if (smb_buffer) | |
482 | cifs_small_buf_release(smb_buffer); | |
483 | up(&tcon->tconSem); | |
484 | ||
485 | /* No need to return error on this operation if tid invalidated and | |
486 | closed on server already e.g. due to tcp session crashing */ | |
487 | if (rc == -EAGAIN) | |
488 | rc = 0; | |
489 | ||
490 | return rc; | |
491 | } | |
492 | ||
493 | int | |
494 | CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses) | |
495 | { | |
496 | struct smb_hdr *smb_buffer_response; | |
497 | LOGOFF_ANDX_REQ *pSMB; | |
498 | int rc = 0; | |
499 | int length; | |
500 | ||
501 | cFYI(1, ("In SMBLogoff for session disconnect")); | |
502 | if (ses) | |
503 | down(&ses->sesSem); | |
504 | else | |
505 | return -EIO; | |
506 | ||
507 | atomic_dec(&ses->inUse); | |
508 | if (atomic_read(&ses->inUse) > 0) { | |
509 | up(&ses->sesSem); | |
510 | return -EBUSY; | |
511 | } | |
512 | rc = small_smb_init(SMB_COM_LOGOFF_ANDX, 2, NULL, (void **)&pSMB); | |
513 | if (rc) { | |
514 | up(&ses->sesSem); | |
515 | return rc; | |
516 | } | |
517 | ||
518 | smb_buffer_response = (struct smb_hdr *)pSMB; /* BB removeme BB */ | |
519 | ||
520 | if(ses->server) { | |
521 | if(ses->server->secMode & | |
522 | (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) | |
523 | pSMB->hdr.Flags2 |= SMBFLG2_SECURITY_SIGNATURE; | |
524 | } | |
525 | ||
526 | pSMB->hdr.Uid = ses->Suid; | |
527 | ||
528 | pSMB->AndXCommand = 0xFF; | |
529 | rc = SendReceive(xid, ses, (struct smb_hdr *) pSMB, | |
530 | smb_buffer_response, &length, 0); | |
531 | if (ses->server) { | |
532 | atomic_dec(&ses->server->socketUseCount); | |
533 | if (atomic_read(&ses->server->socketUseCount) == 0) { | |
534 | spin_lock(&GlobalMid_Lock); | |
535 | ses->server->tcpStatus = CifsExiting; | |
536 | spin_unlock(&GlobalMid_Lock); | |
537 | rc = -ESHUTDOWN; | |
538 | } | |
539 | } | |
540 | if (pSMB) | |
541 | cifs_small_buf_release(pSMB); | |
542 | up(&ses->sesSem); | |
543 | ||
544 | /* if session dead then we do not need to do ulogoff, | |
545 | since server closed smb session, no sense reporting | |
546 | error */ | |
547 | if (rc == -EAGAIN) | |
548 | rc = 0; | |
549 | return rc; | |
550 | } | |
551 | ||
552 | int | |
737b758c SF |
553 | CIFSSMBDelFile(const int xid, struct cifsTconInfo *tcon, const char *fileName, |
554 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
555 | { |
556 | DELETE_FILE_REQ *pSMB = NULL; | |
557 | DELETE_FILE_RSP *pSMBr = NULL; | |
558 | int rc = 0; | |
559 | int bytes_returned; | |
560 | int name_len; | |
561 | ||
562 | DelFileRetry: | |
563 | rc = smb_init(SMB_COM_DELETE, 1, tcon, (void **) &pSMB, | |
564 | (void **) &pSMBr); | |
565 | if (rc) | |
566 | return rc; | |
567 | ||
568 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
569 | name_len = | |
b1a45695 | 570 | cifsConvertToUCS((__le16 *) pSMB->fileName, fileName, |
737b758c | 571 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
572 | name_len++; /* trailing null */ |
573 | name_len *= 2; | |
09d1db5c | 574 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
575 | name_len = strnlen(fileName, PATH_MAX); |
576 | name_len++; /* trailing null */ | |
577 | strncpy(pSMB->fileName, fileName, name_len); | |
578 | } | |
579 | pSMB->SearchAttributes = | |
580 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM); | |
581 | pSMB->BufferFormat = 0x04; | |
582 | pSMB->hdr.smb_buf_length += name_len + 1; | |
583 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
584 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
585 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
586 | if (rc) { | |
587 | cFYI(1, ("Error in RMFile = %d", rc)); | |
588 | } | |
589 | #ifdef CONFIG_CIFS_STATS | |
590 | else { | |
591 | atomic_inc(&tcon->num_deletes); | |
592 | } | |
593 | #endif | |
594 | ||
595 | cifs_buf_release(pSMB); | |
596 | if (rc == -EAGAIN) | |
597 | goto DelFileRetry; | |
598 | ||
599 | return rc; | |
600 | } | |
601 | ||
602 | int | |
737b758c SF |
603 | CIFSSMBRmDir(const int xid, struct cifsTconInfo *tcon, const char *dirName, |
604 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
605 | { |
606 | DELETE_DIRECTORY_REQ *pSMB = NULL; | |
607 | DELETE_DIRECTORY_RSP *pSMBr = NULL; | |
608 | int rc = 0; | |
609 | int bytes_returned; | |
610 | int name_len; | |
611 | ||
612 | cFYI(1, ("In CIFSSMBRmDir")); | |
613 | RmDirRetry: | |
614 | rc = smb_init(SMB_COM_DELETE_DIRECTORY, 0, tcon, (void **) &pSMB, | |
615 | (void **) &pSMBr); | |
616 | if (rc) | |
617 | return rc; | |
618 | ||
619 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
737b758c SF |
620 | name_len = cifsConvertToUCS((__le16 *) pSMB->DirName, dirName, |
621 | PATH_MAX, nls_codepage, remap); | |
1da177e4 LT |
622 | name_len++; /* trailing null */ |
623 | name_len *= 2; | |
09d1db5c | 624 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
625 | name_len = strnlen(dirName, PATH_MAX); |
626 | name_len++; /* trailing null */ | |
627 | strncpy(pSMB->DirName, dirName, name_len); | |
628 | } | |
629 | ||
630 | pSMB->BufferFormat = 0x04; | |
631 | pSMB->hdr.smb_buf_length += name_len + 1; | |
632 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
633 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
634 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
635 | if (rc) { | |
636 | cFYI(1, ("Error in RMDir = %d", rc)); | |
637 | } | |
638 | #ifdef CONFIG_CIFS_STATS | |
639 | else { | |
640 | atomic_inc(&tcon->num_rmdirs); | |
641 | } | |
642 | #endif | |
643 | ||
644 | cifs_buf_release(pSMB); | |
645 | if (rc == -EAGAIN) | |
646 | goto RmDirRetry; | |
647 | return rc; | |
648 | } | |
649 | ||
650 | int | |
651 | CIFSSMBMkDir(const int xid, struct cifsTconInfo *tcon, | |
737b758c | 652 | const char *name, const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
653 | { |
654 | int rc = 0; | |
655 | CREATE_DIRECTORY_REQ *pSMB = NULL; | |
656 | CREATE_DIRECTORY_RSP *pSMBr = NULL; | |
657 | int bytes_returned; | |
658 | int name_len; | |
659 | ||
660 | cFYI(1, ("In CIFSSMBMkDir")); | |
661 | MkDirRetry: | |
662 | rc = smb_init(SMB_COM_CREATE_DIRECTORY, 0, tcon, (void **) &pSMB, | |
663 | (void **) &pSMBr); | |
664 | if (rc) | |
665 | return rc; | |
666 | ||
667 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
b1a45695 | 668 | name_len = cifsConvertToUCS((__le16 *) pSMB->DirName, name, |
737b758c | 669 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
670 | name_len++; /* trailing null */ |
671 | name_len *= 2; | |
09d1db5c | 672 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
673 | name_len = strnlen(name, PATH_MAX); |
674 | name_len++; /* trailing null */ | |
675 | strncpy(pSMB->DirName, name, name_len); | |
676 | } | |
677 | ||
678 | pSMB->BufferFormat = 0x04; | |
679 | pSMB->hdr.smb_buf_length += name_len + 1; | |
680 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
681 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
682 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
683 | if (rc) { | |
684 | cFYI(1, ("Error in Mkdir = %d", rc)); | |
685 | } | |
686 | #ifdef CONFIG_CIFS_STATS | |
687 | else { | |
688 | atomic_inc(&tcon->num_mkdirs); | |
689 | } | |
690 | #endif | |
691 | cifs_buf_release(pSMB); | |
692 | if (rc == -EAGAIN) | |
693 | goto MkDirRetry; | |
694 | return rc; | |
695 | } | |
696 | ||
697 | int | |
698 | CIFSSMBOpen(const int xid, struct cifsTconInfo *tcon, | |
699 | const char *fileName, const int openDisposition, | |
700 | const int access_flags, const int create_options, __u16 * netfid, | |
701 | int *pOplock, FILE_ALL_INFO * pfile_info, | |
737b758c | 702 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
703 | { |
704 | int rc = -EACCES; | |
705 | OPEN_REQ *pSMB = NULL; | |
706 | OPEN_RSP *pSMBr = NULL; | |
707 | int bytes_returned; | |
708 | int name_len; | |
709 | __u16 count; | |
710 | ||
711 | openRetry: | |
712 | rc = smb_init(SMB_COM_NT_CREATE_ANDX, 24, tcon, (void **) &pSMB, | |
713 | (void **) &pSMBr); | |
714 | if (rc) | |
715 | return rc; | |
716 | ||
717 | pSMB->AndXCommand = 0xFF; /* none */ | |
718 | ||
719 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
720 | count = 1; /* account for one byte pad to word boundary */ | |
721 | name_len = | |
b1a45695 | 722 | cifsConvertToUCS((__le16 *) (pSMB->fileName + 1), |
737b758c | 723 | fileName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
724 | name_len++; /* trailing null */ |
725 | name_len *= 2; | |
726 | pSMB->NameLength = cpu_to_le16(name_len); | |
09d1db5c | 727 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
728 | count = 0; /* no pad */ |
729 | name_len = strnlen(fileName, PATH_MAX); | |
730 | name_len++; /* trailing null */ | |
731 | pSMB->NameLength = cpu_to_le16(name_len); | |
732 | strncpy(pSMB->fileName, fileName, name_len); | |
733 | } | |
734 | if (*pOplock & REQ_OPLOCK) | |
735 | pSMB->OpenFlags = cpu_to_le32(REQ_OPLOCK); | |
736 | else if (*pOplock & REQ_BATCHOPLOCK) { | |
737 | pSMB->OpenFlags = cpu_to_le32(REQ_BATCHOPLOCK); | |
738 | } | |
739 | pSMB->DesiredAccess = cpu_to_le32(access_flags); | |
740 | pSMB->AllocationSize = 0; | |
741 | pSMB->FileAttributes = cpu_to_le32(ATTR_NORMAL); | |
742 | /* XP does not handle ATTR_POSIX_SEMANTICS */ | |
743 | /* but it helps speed up case sensitive checks for other | |
744 | servers such as Samba */ | |
745 | if (tcon->ses->capabilities & CAP_UNIX) | |
746 | pSMB->FileAttributes |= cpu_to_le32(ATTR_POSIX_SEMANTICS); | |
747 | ||
748 | /* if ((omode & S_IWUGO) == 0) | |
749 | pSMB->FileAttributes |= cpu_to_le32(ATTR_READONLY);*/ | |
750 | /* Above line causes problems due to vfs splitting create into two | |
751 | pieces - need to set mode after file created not while it is | |
752 | being created */ | |
753 | pSMB->ShareAccess = cpu_to_le32(FILE_SHARE_ALL); | |
754 | pSMB->CreateDisposition = cpu_to_le32(openDisposition); | |
755 | pSMB->CreateOptions = cpu_to_le32(create_options); | |
09d1db5c SF |
756 | /* BB Expirement with various impersonation levels and verify */ |
757 | pSMB->ImpersonationLevel = cpu_to_le32(SECURITY_IMPERSONATION); | |
1da177e4 LT |
758 | pSMB->SecurityFlags = |
759 | SECURITY_CONTEXT_TRACKING | SECURITY_EFFECTIVE_ONLY; | |
760 | ||
761 | count += name_len; | |
762 | pSMB->hdr.smb_buf_length += count; | |
763 | ||
764 | pSMB->ByteCount = cpu_to_le16(count); | |
765 | /* long_op set to 1 to allow for oplock break timeouts */ | |
766 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
767 | (struct smb_hdr *) pSMBr, &bytes_returned, 1); | |
768 | if (rc) { | |
769 | cFYI(1, ("Error in Open = %d", rc)); | |
770 | } else { | |
09d1db5c | 771 | *pOplock = pSMBr->OplockLevel; /* 1 byte no need to le_to_cpu */ |
1da177e4 LT |
772 | *netfid = pSMBr->Fid; /* cifs fid stays in le */ |
773 | /* Let caller know file was created so we can set the mode. */ | |
774 | /* Do we care about the CreateAction in any other cases? */ | |
775 | if(cpu_to_le32(FILE_CREATE) == pSMBr->CreateAction) | |
776 | *pOplock |= CIFS_CREATE_ACTION; | |
777 | if(pfile_info) { | |
778 | memcpy((char *)pfile_info,(char *)&pSMBr->CreationTime, | |
779 | 36 /* CreationTime to Attributes */); | |
780 | /* the file_info buf is endian converted by caller */ | |
781 | pfile_info->AllocationSize = pSMBr->AllocationSize; | |
782 | pfile_info->EndOfFile = pSMBr->EndOfFile; | |
783 | pfile_info->NumberOfLinks = cpu_to_le32(1); | |
784 | } | |
785 | ||
786 | #ifdef CONFIG_CIFS_STATS | |
787 | atomic_inc(&tcon->num_opens); | |
788 | #endif | |
789 | } | |
790 | cifs_buf_release(pSMB); | |
791 | if (rc == -EAGAIN) | |
792 | goto openRetry; | |
793 | return rc; | |
794 | } | |
795 | ||
796 | /* If no buffer passed in, then caller wants to do the copy | |
797 | as in the case of readpages so the SMB buffer must be | |
798 | freed by the caller */ | |
799 | ||
800 | int | |
801 | CIFSSMBRead(const int xid, struct cifsTconInfo *tcon, | |
802 | const int netfid, const unsigned int count, | |
803 | const __u64 lseek, unsigned int *nbytes, char **buf) | |
804 | { | |
805 | int rc = -EACCES; | |
806 | READ_REQ *pSMB = NULL; | |
807 | READ_RSP *pSMBr = NULL; | |
808 | char *pReadData = NULL; | |
809 | int bytes_returned; | |
810 | ||
811 | cFYI(1,("Reading %d bytes on fid %d",count,netfid)); | |
812 | ||
813 | *nbytes = 0; | |
814 | rc = smb_init(SMB_COM_READ_ANDX, 12, tcon, (void **) &pSMB, | |
815 | (void **) &pSMBr); | |
816 | if (rc) | |
817 | return rc; | |
818 | ||
819 | /* tcon and ses pointer are checked in smb_init */ | |
820 | if (tcon->ses->server == NULL) | |
821 | return -ECONNABORTED; | |
822 | ||
823 | pSMB->AndXCommand = 0xFF; /* none */ | |
824 | pSMB->Fid = netfid; | |
825 | pSMB->OffsetLow = cpu_to_le32(lseek & 0xFFFFFFFF); | |
826 | pSMB->OffsetHigh = cpu_to_le32(lseek >> 32); | |
827 | pSMB->Remaining = 0; | |
828 | pSMB->MaxCount = cpu_to_le16(count & 0xFFFF); | |
829 | pSMB->MaxCountHigh = cpu_to_le32(count >> 16); | |
830 | pSMB->ByteCount = 0; /* no need to do le conversion since it is 0 */ | |
831 | ||
832 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
833 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
834 | if (rc) { | |
835 | cERROR(1, ("Send error in read = %d", rc)); | |
836 | } else { | |
837 | int data_length = le16_to_cpu(pSMBr->DataLengthHigh); | |
838 | data_length = data_length << 16; | |
839 | data_length += le16_to_cpu(pSMBr->DataLength); | |
840 | *nbytes = data_length; | |
841 | ||
842 | /*check that DataLength would not go beyond end of SMB */ | |
843 | if ((data_length > CIFSMaxBufSize) | |
844 | || (data_length > count)) { | |
845 | cFYI(1,("bad length %d for count %d",data_length,count)); | |
846 | rc = -EIO; | |
847 | *nbytes = 0; | |
848 | } else { | |
849 | pReadData = | |
850 | (char *) (&pSMBr->hdr.Protocol) + | |
851 | le16_to_cpu(pSMBr->DataOffset); | |
852 | /* if(rc = copy_to_user(buf, pReadData, data_length)) { | |
853 | cERROR(1,("Faulting on read rc = %d",rc)); | |
854 | rc = -EFAULT; | |
855 | }*/ /* can not use copy_to_user when using page cache*/ | |
856 | if(*buf) | |
857 | memcpy(*buf,pReadData,data_length); | |
858 | } | |
859 | } | |
860 | if(*buf) | |
861 | cifs_buf_release(pSMB); | |
862 | else | |
863 | *buf = (char *)pSMB; | |
864 | ||
865 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
866 | since file handle passed in no longer valid */ | |
867 | return rc; | |
868 | } | |
869 | ||
870 | int | |
871 | CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon, | |
872 | const int netfid, const unsigned int count, | |
873 | const __u64 offset, unsigned int *nbytes, const char *buf, | |
874 | const char __user * ubuf, const int long_op) | |
875 | { | |
876 | int rc = -EACCES; | |
877 | WRITE_REQ *pSMB = NULL; | |
878 | WRITE_RSP *pSMBr = NULL; | |
879 | int bytes_returned; | |
880 | __u32 bytes_sent; | |
881 | __u16 byte_count; | |
882 | ||
883 | /* cFYI(1,("write at %lld %d bytes",offset,count));*/ | |
884 | rc = smb_init(SMB_COM_WRITE_ANDX, 14, tcon, (void **) &pSMB, | |
885 | (void **) &pSMBr); | |
886 | if (rc) | |
887 | return rc; | |
888 | /* tcon and ses pointer are checked in smb_init */ | |
889 | if (tcon->ses->server == NULL) | |
890 | return -ECONNABORTED; | |
891 | ||
892 | pSMB->AndXCommand = 0xFF; /* none */ | |
893 | pSMB->Fid = netfid; | |
894 | pSMB->OffsetLow = cpu_to_le32(offset & 0xFFFFFFFF); | |
895 | pSMB->OffsetHigh = cpu_to_le32(offset >> 32); | |
896 | pSMB->Reserved = 0xFFFFFFFF; | |
897 | pSMB->WriteMode = 0; | |
898 | pSMB->Remaining = 0; | |
899 | ||
900 | /* Can increase buffer size if buffer is big enough in some cases - ie we | |
901 | can send more if LARGE_WRITE_X capability returned by the server and if | |
902 | our buffer is big enough or if we convert to iovecs on socket writes | |
903 | and eliminate the copy to the CIFS buffer */ | |
904 | if(tcon->ses->capabilities & CAP_LARGE_WRITE_X) { | |
905 | bytes_sent = min_t(const unsigned int, CIFSMaxBufSize, count); | |
906 | } else { | |
907 | bytes_sent = (tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) | |
908 | & ~0xFF; | |
909 | } | |
910 | ||
911 | if (bytes_sent > count) | |
912 | bytes_sent = count; | |
913 | pSMB->DataOffset = | |
914 | cpu_to_le16(offsetof(struct smb_com_write_req,Data) - 4); | |
915 | if(buf) | |
916 | memcpy(pSMB->Data,buf,bytes_sent); | |
917 | else if(ubuf) { | |
918 | if(copy_from_user(pSMB->Data,ubuf,bytes_sent)) { | |
919 | cifs_buf_release(pSMB); | |
920 | return -EFAULT; | |
921 | } | |
922 | } else { | |
923 | /* No buffer */ | |
924 | cifs_buf_release(pSMB); | |
925 | return -EINVAL; | |
926 | } | |
927 | ||
928 | byte_count = bytes_sent + 1 /* pad */ ; /* BB fix this for sends > 64K */ | |
929 | pSMB->DataLengthLow = cpu_to_le16(bytes_sent & 0xFFFF); | |
930 | pSMB->DataLengthHigh = cpu_to_le16(bytes_sent >> 16); | |
931 | pSMB->hdr.smb_buf_length += bytes_sent+1; | |
932 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
933 | ||
934 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
935 | (struct smb_hdr *) pSMBr, &bytes_returned, long_op); | |
936 | if (rc) { | |
937 | cFYI(1, ("Send error in write = %d", rc)); | |
938 | *nbytes = 0; | |
939 | } else { | |
940 | *nbytes = le16_to_cpu(pSMBr->CountHigh); | |
941 | *nbytes = (*nbytes) << 16; | |
942 | *nbytes += le16_to_cpu(pSMBr->Count); | |
943 | } | |
944 | ||
945 | cifs_buf_release(pSMB); | |
946 | ||
947 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
948 | since file handle passed in no longer valid */ | |
949 | ||
950 | return rc; | |
951 | } | |
952 | ||
953 | #ifdef CONFIG_CIFS_EXPERIMENTAL | |
954 | int CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon, | |
955 | const int netfid, const unsigned int count, | |
956 | const __u64 offset, unsigned int *nbytes, const char __user *buf, | |
957 | const int long_op) | |
958 | { | |
959 | int rc = -EACCES; | |
960 | WRITE_REQ *pSMB = NULL; | |
961 | WRITE_RSP *pSMBr = NULL; | |
962 | /*int bytes_returned;*/ | |
963 | unsigned bytes_sent; | |
964 | __u16 byte_count; | |
965 | ||
966 | rc = small_smb_init(SMB_COM_WRITE_ANDX, 14, tcon, (void **) &pSMB); | |
967 | ||
968 | if (rc) | |
969 | return rc; | |
970 | ||
971 | pSMBr = (WRITE_RSP *)pSMB; /* BB removeme BB */ | |
972 | ||
973 | /* tcon and ses pointer are checked in smb_init */ | |
974 | if (tcon->ses->server == NULL) | |
975 | return -ECONNABORTED; | |
976 | ||
977 | pSMB->AndXCommand = 0xFF; /* none */ | |
978 | pSMB->Fid = netfid; | |
979 | pSMB->OffsetLow = cpu_to_le32(offset & 0xFFFFFFFF); | |
980 | pSMB->OffsetHigh = cpu_to_le32(offset >> 32); | |
981 | pSMB->Reserved = 0xFFFFFFFF; | |
982 | pSMB->WriteMode = 0; | |
983 | pSMB->Remaining = 0; | |
984 | bytes_sent = (tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) & ~0xFF; | |
985 | if (bytes_sent > count) | |
986 | bytes_sent = count; | |
987 | pSMB->DataLengthHigh = 0; | |
988 | pSMB->DataOffset = | |
989 | cpu_to_le16(offsetof(struct smb_com_write_req,Data) - 4); | |
990 | ||
991 | byte_count = bytes_sent + 1 /* pad */ ; | |
992 | pSMB->DataLengthLow = cpu_to_le16(bytes_sent); | |
993 | pSMB->DataLengthHigh = 0; | |
994 | pSMB->hdr.smb_buf_length += byte_count; | |
995 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
996 | ||
997 | /* rc = SendReceive2(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
998 | (struct smb_hdr *) pSMBr, buf, buflen, &bytes_returned, long_op); */ /* BB fixme BB */ | |
999 | if (rc) { | |
1000 | cFYI(1, ("Send error in write2 (large write) = %d", rc)); | |
1001 | *nbytes = 0; | |
1002 | } else | |
1003 | *nbytes = le16_to_cpu(pSMBr->Count); | |
1004 | ||
1005 | cifs_small_buf_release(pSMB); | |
1006 | ||
1007 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
1008 | since file handle passed in no longer valid */ | |
1009 | ||
1010 | return rc; | |
1011 | } | |
1012 | #endif /* CIFS_EXPERIMENTAL */ | |
1013 | ||
1014 | int | |
1015 | CIFSSMBLock(const int xid, struct cifsTconInfo *tcon, | |
1016 | const __u16 smb_file_id, const __u64 len, | |
1017 | const __u64 offset, const __u32 numUnlock, | |
1018 | const __u32 numLock, const __u8 lockType, const int waitFlag) | |
1019 | { | |
1020 | int rc = 0; | |
1021 | LOCK_REQ *pSMB = NULL; | |
1022 | LOCK_RSP *pSMBr = NULL; | |
1023 | int bytes_returned; | |
1024 | int timeout = 0; | |
1025 | __u16 count; | |
1026 | ||
1027 | cFYI(1, ("In CIFSSMBLock - timeout %d numLock %d",waitFlag,numLock)); | |
46810cbf SF |
1028 | rc = small_smb_init(SMB_COM_LOCKING_ANDX, 8, tcon, (void **) &pSMB); |
1029 | ||
1da177e4 LT |
1030 | if (rc) |
1031 | return rc; | |
1032 | ||
46810cbf SF |
1033 | pSMBr = (LOCK_RSP *)pSMB; /* BB removeme BB */ |
1034 | ||
1da177e4 LT |
1035 | if(lockType == LOCKING_ANDX_OPLOCK_RELEASE) { |
1036 | timeout = -1; /* no response expected */ | |
1037 | pSMB->Timeout = 0; | |
1038 | } else if (waitFlag == TRUE) { | |
1039 | timeout = 3; /* blocking operation, no timeout */ | |
1040 | pSMB->Timeout = cpu_to_le32(-1);/* blocking - do not time out */ | |
1041 | } else { | |
1042 | pSMB->Timeout = 0; | |
1043 | } | |
1044 | ||
1045 | pSMB->NumberOfLocks = cpu_to_le16(numLock); | |
1046 | pSMB->NumberOfUnlocks = cpu_to_le16(numUnlock); | |
1047 | pSMB->LockType = lockType; | |
1048 | pSMB->AndXCommand = 0xFF; /* none */ | |
1049 | pSMB->Fid = smb_file_id; /* netfid stays le */ | |
1050 | ||
1051 | if((numLock != 0) || (numUnlock != 0)) { | |
1052 | pSMB->Locks[0].Pid = cpu_to_le16(current->tgid); | |
1053 | /* BB where to store pid high? */ | |
1054 | pSMB->Locks[0].LengthLow = cpu_to_le32((u32)len); | |
1055 | pSMB->Locks[0].LengthHigh = cpu_to_le32((u32)(len>>32)); | |
1056 | pSMB->Locks[0].OffsetLow = cpu_to_le32((u32)offset); | |
1057 | pSMB->Locks[0].OffsetHigh = cpu_to_le32((u32)(offset>>32)); | |
1058 | count = sizeof(LOCKING_ANDX_RANGE); | |
1059 | } else { | |
1060 | /* oplock break */ | |
1061 | count = 0; | |
1062 | } | |
1063 | pSMB->hdr.smb_buf_length += count; | |
1064 | pSMB->ByteCount = cpu_to_le16(count); | |
1065 | ||
1066 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1067 | (struct smb_hdr *) pSMBr, &bytes_returned, timeout); | |
1068 | ||
1069 | if (rc) { | |
1070 | cFYI(1, ("Send error in Lock = %d", rc)); | |
1071 | } | |
46810cbf | 1072 | cifs_small_buf_release(pSMB); |
1da177e4 LT |
1073 | |
1074 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
1075 | since file handle passed in no longer valid */ | |
1076 | return rc; | |
1077 | } | |
1078 | ||
1079 | int | |
1080 | CIFSSMBClose(const int xid, struct cifsTconInfo *tcon, int smb_file_id) | |
1081 | { | |
1082 | int rc = 0; | |
1083 | CLOSE_REQ *pSMB = NULL; | |
1084 | CLOSE_RSP *pSMBr = NULL; | |
1085 | int bytes_returned; | |
1086 | cFYI(1, ("In CIFSSMBClose")); | |
1087 | ||
1088 | /* do not retry on dead session on close */ | |
1089 | rc = small_smb_init(SMB_COM_CLOSE, 3, tcon, (void **) &pSMB); | |
1090 | if(rc == -EAGAIN) | |
1091 | return 0; | |
1092 | if (rc) | |
1093 | return rc; | |
1094 | ||
1095 | pSMBr = (CLOSE_RSP *)pSMB; /* BB removeme BB */ | |
1096 | ||
1097 | pSMB->FileID = (__u16) smb_file_id; | |
1098 | pSMB->LastWriteTime = 0; | |
1099 | pSMB->ByteCount = 0; | |
1100 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1101 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
1102 | if (rc) { | |
1103 | if(rc!=-EINTR) { | |
1104 | /* EINTR is expected when user ctl-c to kill app */ | |
1105 | cERROR(1, ("Send error in Close = %d", rc)); | |
1106 | } | |
1107 | } | |
1108 | ||
1109 | cifs_small_buf_release(pSMB); | |
1110 | ||
1111 | /* Since session is dead, file will be closed on server already */ | |
1112 | if(rc == -EAGAIN) | |
1113 | rc = 0; | |
1114 | ||
1115 | return rc; | |
1116 | } | |
1117 | ||
1118 | int | |
1119 | CIFSSMBRename(const int xid, struct cifsTconInfo *tcon, | |
1120 | const char *fromName, const char *toName, | |
737b758c | 1121 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
1122 | { |
1123 | int rc = 0; | |
1124 | RENAME_REQ *pSMB = NULL; | |
1125 | RENAME_RSP *pSMBr = NULL; | |
1126 | int bytes_returned; | |
1127 | int name_len, name_len2; | |
1128 | __u16 count; | |
1129 | ||
1130 | cFYI(1, ("In CIFSSMBRename")); | |
1131 | renameRetry: | |
1132 | rc = smb_init(SMB_COM_RENAME, 1, tcon, (void **) &pSMB, | |
1133 | (void **) &pSMBr); | |
1134 | if (rc) | |
1135 | return rc; | |
1136 | ||
1137 | pSMB->BufferFormat = 0x04; | |
1138 | pSMB->SearchAttributes = | |
1139 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | | |
1140 | ATTR_DIRECTORY); | |
1141 | ||
1142 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1143 | name_len = | |
b1a45695 | 1144 | cifsConvertToUCS((__le16 *) pSMB->OldFileName, fromName, |
737b758c | 1145 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1146 | name_len++; /* trailing null */ |
1147 | name_len *= 2; | |
1148 | pSMB->OldFileName[name_len] = 0x04; /* pad */ | |
1149 | /* protocol requires ASCII signature byte on Unicode string */ | |
1150 | pSMB->OldFileName[name_len + 1] = 0x00; | |
1151 | name_len2 = | |
b1a45695 | 1152 | cifsConvertToUCS((__le16 *) &pSMB->OldFileName[name_len + 2], |
737b758c | 1153 | toName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1154 | name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; |
1155 | name_len2 *= 2; /* convert to bytes */ | |
1156 | } else { /* BB improve the check for buffer overruns BB */ | |
1157 | name_len = strnlen(fromName, PATH_MAX); | |
1158 | name_len++; /* trailing null */ | |
1159 | strncpy(pSMB->OldFileName, fromName, name_len); | |
1160 | name_len2 = strnlen(toName, PATH_MAX); | |
1161 | name_len2++; /* trailing null */ | |
1162 | pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */ | |
1163 | strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2); | |
1164 | name_len2++; /* trailing null */ | |
1165 | name_len2++; /* signature byte */ | |
1166 | } | |
1167 | ||
1168 | count = 1 /* 1st signature byte */ + name_len + name_len2; | |
1169 | pSMB->hdr.smb_buf_length += count; | |
1170 | pSMB->ByteCount = cpu_to_le16(count); | |
1171 | ||
1172 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1173 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
1174 | if (rc) { | |
1175 | cFYI(1, ("Send error in rename = %d", rc)); | |
1176 | } | |
1177 | ||
1178 | #ifdef CONFIG_CIFS_STATS | |
1179 | else { | |
1180 | atomic_inc(&tcon->num_renames); | |
1181 | } | |
1182 | #endif | |
1183 | ||
1184 | cifs_buf_release(pSMB); | |
1185 | ||
1186 | if (rc == -EAGAIN) | |
1187 | goto renameRetry; | |
1188 | ||
1189 | return rc; | |
1190 | } | |
1191 | ||
1192 | int CIFSSMBRenameOpenFile(const int xid,struct cifsTconInfo *pTcon, | |
737b758c SF |
1193 | int netfid, char * target_name, |
1194 | const struct nls_table * nls_codepage, int remap) | |
1da177e4 LT |
1195 | { |
1196 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
1197 | struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; | |
1198 | struct set_file_rename * rename_info; | |
1199 | char *data_offset; | |
1200 | char dummy_string[30]; | |
1201 | int rc = 0; | |
1202 | int bytes_returned = 0; | |
1203 | int len_of_str; | |
1204 | __u16 params, param_offset, offset, count, byte_count; | |
1205 | ||
1206 | cFYI(1, ("Rename to File by handle")); | |
1207 | rc = smb_init(SMB_COM_TRANSACTION2, 15, pTcon, (void **) &pSMB, | |
1208 | (void **) &pSMBr); | |
1209 | if (rc) | |
1210 | return rc; | |
1211 | ||
1212 | params = 6; | |
1213 | pSMB->MaxSetupCount = 0; | |
1214 | pSMB->Reserved = 0; | |
1215 | pSMB->Flags = 0; | |
1216 | pSMB->Timeout = 0; | |
1217 | pSMB->Reserved2 = 0; | |
1218 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
1219 | offset = param_offset + params; | |
1220 | ||
1221 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
1222 | rename_info = (struct set_file_rename *) data_offset; | |
1223 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
1224 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB PDU from sess */ | |
1225 | pSMB->SetupCount = 1; | |
1226 | pSMB->Reserved3 = 0; | |
1227 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
1228 | byte_count = 3 /* pad */ + params; | |
1229 | pSMB->ParameterCount = cpu_to_le16(params); | |
1230 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
1231 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
1232 | pSMB->DataOffset = cpu_to_le16(offset); | |
1233 | /* construct random name ".cifs_tmp<inodenum><mid>" */ | |
1234 | rename_info->overwrite = cpu_to_le32(1); | |
1235 | rename_info->root_fid = 0; | |
1236 | /* unicode only call */ | |
1237 | if(target_name == NULL) { | |
1238 | sprintf(dummy_string,"cifs%x",pSMB->hdr.Mid); | |
b1a45695 | 1239 | len_of_str = cifsConvertToUCS((__le16 *)rename_info->target_name, |
737b758c | 1240 | dummy_string, 24, nls_codepage, remap); |
1da177e4 | 1241 | } else { |
b1a45695 | 1242 | len_of_str = cifsConvertToUCS((__le16 *)rename_info->target_name, |
737b758c | 1243 | target_name, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1244 | } |
1245 | rename_info->target_name_len = cpu_to_le32(2 * len_of_str); | |
1246 | count = 12 /* sizeof(struct set_file_rename) */ + (2 * len_of_str) + 2; | |
1247 | byte_count += count; | |
1248 | pSMB->DataCount = cpu_to_le16(count); | |
1249 | pSMB->TotalDataCount = pSMB->DataCount; | |
1250 | pSMB->Fid = netfid; | |
1251 | pSMB->InformationLevel = | |
1252 | cpu_to_le16(SMB_SET_FILE_RENAME_INFORMATION); | |
1253 | pSMB->Reserved4 = 0; | |
1254 | pSMB->hdr.smb_buf_length += byte_count; | |
1255 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
1256 | rc = SendReceive(xid, pTcon->ses, (struct smb_hdr *) pSMB, | |
1257 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
1258 | if (rc) { | |
1259 | cFYI(1,("Send error in Rename (by file handle) = %d", rc)); | |
1260 | } | |
1261 | #ifdef CONFIG_CIFS_STATS | |
1262 | else { | |
1263 | atomic_inc(&pTcon->num_t2renames); | |
1264 | } | |
1265 | #endif | |
1266 | cifs_buf_release(pSMB); | |
1267 | ||
1268 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
1269 | since file handle passed in no longer valid */ | |
1270 | ||
1271 | return rc; | |
1272 | } | |
1273 | ||
1274 | int | |
1275 | CIFSSMBCopy(const int xid, struct cifsTconInfo *tcon, const char * fromName, | |
1276 | const __u16 target_tid, const char *toName, const int flags, | |
737b758c | 1277 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
1278 | { |
1279 | int rc = 0; | |
1280 | COPY_REQ *pSMB = NULL; | |
1281 | COPY_RSP *pSMBr = NULL; | |
1282 | int bytes_returned; | |
1283 | int name_len, name_len2; | |
1284 | __u16 count; | |
1285 | ||
1286 | cFYI(1, ("In CIFSSMBCopy")); | |
1287 | copyRetry: | |
1288 | rc = smb_init(SMB_COM_COPY, 1, tcon, (void **) &pSMB, | |
1289 | (void **) &pSMBr); | |
1290 | if (rc) | |
1291 | return rc; | |
1292 | ||
1293 | pSMB->BufferFormat = 0x04; | |
1294 | pSMB->Tid2 = target_tid; | |
1295 | ||
1296 | pSMB->Flags = cpu_to_le16(flags & COPY_TREE); | |
1297 | ||
1298 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
b1a45695 | 1299 | name_len = cifsConvertToUCS((__le16 *) pSMB->OldFileName, |
737b758c SF |
1300 | fromName, PATH_MAX, nls_codepage, |
1301 | remap); | |
1da177e4 LT |
1302 | name_len++; /* trailing null */ |
1303 | name_len *= 2; | |
1304 | pSMB->OldFileName[name_len] = 0x04; /* pad */ | |
1305 | /* protocol requires ASCII signature byte on Unicode string */ | |
1306 | pSMB->OldFileName[name_len + 1] = 0x00; | |
b1a45695 | 1307 | name_len2 = cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2], |
737b758c | 1308 | toName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1309 | name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; |
1310 | name_len2 *= 2; /* convert to bytes */ | |
1311 | } else { /* BB improve the check for buffer overruns BB */ | |
1312 | name_len = strnlen(fromName, PATH_MAX); | |
1313 | name_len++; /* trailing null */ | |
1314 | strncpy(pSMB->OldFileName, fromName, name_len); | |
1315 | name_len2 = strnlen(toName, PATH_MAX); | |
1316 | name_len2++; /* trailing null */ | |
1317 | pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */ | |
1318 | strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2); | |
1319 | name_len2++; /* trailing null */ | |
1320 | name_len2++; /* signature byte */ | |
1321 | } | |
1322 | ||
1323 | count = 1 /* 1st signature byte */ + name_len + name_len2; | |
1324 | pSMB->hdr.smb_buf_length += count; | |
1325 | pSMB->ByteCount = cpu_to_le16(count); | |
1326 | ||
1327 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1328 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
1329 | if (rc) { | |
1330 | cFYI(1, ("Send error in copy = %d with %d files copied", | |
1331 | rc, le16_to_cpu(pSMBr->CopyCount))); | |
1332 | } | |
1333 | if (pSMB) | |
1334 | cifs_buf_release(pSMB); | |
1335 | ||
1336 | if (rc == -EAGAIN) | |
1337 | goto copyRetry; | |
1338 | ||
1339 | return rc; | |
1340 | } | |
1341 | ||
1342 | int | |
1343 | CIFSUnixCreateSymLink(const int xid, struct cifsTconInfo *tcon, | |
1344 | const char *fromName, const char *toName, | |
1345 | const struct nls_table *nls_codepage) | |
1346 | { | |
1347 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
1348 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
1349 | char *data_offset; | |
1350 | int name_len; | |
1351 | int name_len_target; | |
1352 | int rc = 0; | |
1353 | int bytes_returned = 0; | |
1354 | __u16 params, param_offset, offset, byte_count; | |
1355 | ||
1356 | cFYI(1, ("In Symlink Unix style")); | |
1357 | createSymLinkRetry: | |
1358 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
1359 | (void **) &pSMBr); | |
1360 | if (rc) | |
1361 | return rc; | |
1362 | ||
1363 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1364 | name_len = | |
1365 | cifs_strtoUCS((wchar_t *) pSMB->FileName, fromName, PATH_MAX | |
1366 | /* find define for this maxpathcomponent */ | |
1367 | , nls_codepage); | |
1368 | name_len++; /* trailing null */ | |
1369 | name_len *= 2; | |
1370 | ||
1371 | } else { /* BB improve the check for buffer overruns BB */ | |
1372 | name_len = strnlen(fromName, PATH_MAX); | |
1373 | name_len++; /* trailing null */ | |
1374 | strncpy(pSMB->FileName, fromName, name_len); | |
1375 | } | |
1376 | params = 6 + name_len; | |
1377 | pSMB->MaxSetupCount = 0; | |
1378 | pSMB->Reserved = 0; | |
1379 | pSMB->Flags = 0; | |
1380 | pSMB->Timeout = 0; | |
1381 | pSMB->Reserved2 = 0; | |
1382 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
1383 | InformationLevel) - 4; | |
1384 | offset = param_offset + params; | |
1385 | ||
1386 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
1387 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1388 | name_len_target = | |
1389 | cifs_strtoUCS((wchar_t *) data_offset, toName, PATH_MAX | |
1390 | /* find define for this maxpathcomponent */ | |
1391 | , nls_codepage); | |
1392 | name_len_target++; /* trailing null */ | |
1393 | name_len_target *= 2; | |
1394 | } else { /* BB improve the check for buffer overruns BB */ | |
1395 | name_len_target = strnlen(toName, PATH_MAX); | |
1396 | name_len_target++; /* trailing null */ | |
1397 | strncpy(data_offset, toName, name_len_target); | |
1398 | } | |
1399 | ||
1400 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
1401 | /* BB find exact max on data count below from sess */ | |
1402 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1403 | pSMB->SetupCount = 1; | |
1404 | pSMB->Reserved3 = 0; | |
1405 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
1406 | byte_count = 3 /* pad */ + params + name_len_target; | |
1407 | pSMB->DataCount = cpu_to_le16(name_len_target); | |
1408 | pSMB->ParameterCount = cpu_to_le16(params); | |
1409 | pSMB->TotalDataCount = pSMB->DataCount; | |
1410 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
1411 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
1412 | pSMB->DataOffset = cpu_to_le16(offset); | |
1413 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_LINK); | |
1414 | pSMB->Reserved4 = 0; | |
1415 | pSMB->hdr.smb_buf_length += byte_count; | |
1416 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
1417 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1418 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
1419 | if (rc) { | |
1420 | cFYI(1, | |
1421 | ("Send error in SetPathInfo (create symlink) = %d", | |
1422 | rc)); | |
1423 | } | |
1424 | ||
1425 | if (pSMB) | |
1426 | cifs_buf_release(pSMB); | |
1427 | ||
1428 | if (rc == -EAGAIN) | |
1429 | goto createSymLinkRetry; | |
1430 | ||
1431 | return rc; | |
1432 | } | |
1433 | ||
1434 | int | |
1435 | CIFSUnixCreateHardLink(const int xid, struct cifsTconInfo *tcon, | |
1436 | const char *fromName, const char *toName, | |
737b758c | 1437 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
1438 | { |
1439 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
1440 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
1441 | char *data_offset; | |
1442 | int name_len; | |
1443 | int name_len_target; | |
1444 | int rc = 0; | |
1445 | int bytes_returned = 0; | |
1446 | __u16 params, param_offset, offset, byte_count; | |
1447 | ||
1448 | cFYI(1, ("In Create Hard link Unix style")); | |
1449 | createHardLinkRetry: | |
1450 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
1451 | (void **) &pSMBr); | |
1452 | if (rc) | |
1453 | return rc; | |
1454 | ||
1455 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
b1a45695 | 1456 | name_len = cifsConvertToUCS((__le16 *) pSMB->FileName, toName, |
737b758c | 1457 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1458 | name_len++; /* trailing null */ |
1459 | name_len *= 2; | |
1460 | ||
1461 | } else { /* BB improve the check for buffer overruns BB */ | |
1462 | name_len = strnlen(toName, PATH_MAX); | |
1463 | name_len++; /* trailing null */ | |
1464 | strncpy(pSMB->FileName, toName, name_len); | |
1465 | } | |
1466 | params = 6 + name_len; | |
1467 | pSMB->MaxSetupCount = 0; | |
1468 | pSMB->Reserved = 0; | |
1469 | pSMB->Flags = 0; | |
1470 | pSMB->Timeout = 0; | |
1471 | pSMB->Reserved2 = 0; | |
1472 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
1473 | InformationLevel) - 4; | |
1474 | offset = param_offset + params; | |
1475 | ||
1476 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
1477 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1478 | name_len_target = | |
b1a45695 | 1479 | cifsConvertToUCS((__le16 *) data_offset, fromName, PATH_MAX, |
737b758c | 1480 | nls_codepage, remap); |
1da177e4 LT |
1481 | name_len_target++; /* trailing null */ |
1482 | name_len_target *= 2; | |
1483 | } else { /* BB improve the check for buffer overruns BB */ | |
1484 | name_len_target = strnlen(fromName, PATH_MAX); | |
1485 | name_len_target++; /* trailing null */ | |
1486 | strncpy(data_offset, fromName, name_len_target); | |
1487 | } | |
1488 | ||
1489 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
1490 | /* BB find exact max on data count below from sess*/ | |
1491 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1492 | pSMB->SetupCount = 1; | |
1493 | pSMB->Reserved3 = 0; | |
1494 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
1495 | byte_count = 3 /* pad */ + params + name_len_target; | |
1496 | pSMB->ParameterCount = cpu_to_le16(params); | |
1497 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
1498 | pSMB->DataCount = cpu_to_le16(name_len_target); | |
1499 | pSMB->TotalDataCount = pSMB->DataCount; | |
1500 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
1501 | pSMB->DataOffset = cpu_to_le16(offset); | |
1502 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_HLINK); | |
1503 | pSMB->Reserved4 = 0; | |
1504 | pSMB->hdr.smb_buf_length += byte_count; | |
1505 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
1506 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1507 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
1508 | if (rc) { | |
1509 | cFYI(1, ("Send error in SetPathInfo (hard link) = %d", rc)); | |
1510 | } | |
1511 | ||
1512 | cifs_buf_release(pSMB); | |
1513 | if (rc == -EAGAIN) | |
1514 | goto createHardLinkRetry; | |
1515 | ||
1516 | return rc; | |
1517 | } | |
1518 | ||
1519 | int | |
1520 | CIFSCreateHardLink(const int xid, struct cifsTconInfo *tcon, | |
1521 | const char *fromName, const char *toName, | |
737b758c | 1522 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
1523 | { |
1524 | int rc = 0; | |
1525 | NT_RENAME_REQ *pSMB = NULL; | |
1526 | RENAME_RSP *pSMBr = NULL; | |
1527 | int bytes_returned; | |
1528 | int name_len, name_len2; | |
1529 | __u16 count; | |
1530 | ||
1531 | cFYI(1, ("In CIFSCreateHardLink")); | |
1532 | winCreateHardLinkRetry: | |
1533 | ||
1534 | rc = smb_init(SMB_COM_NT_RENAME, 4, tcon, (void **) &pSMB, | |
1535 | (void **) &pSMBr); | |
1536 | if (rc) | |
1537 | return rc; | |
1538 | ||
1539 | pSMB->SearchAttributes = | |
1540 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | | |
1541 | ATTR_DIRECTORY); | |
1542 | pSMB->Flags = cpu_to_le16(CREATE_HARD_LINK); | |
1543 | pSMB->ClusterCount = 0; | |
1544 | ||
1545 | pSMB->BufferFormat = 0x04; | |
1546 | ||
1547 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1548 | name_len = | |
b1a45695 | 1549 | cifsConvertToUCS((__le16 *) pSMB->OldFileName, fromName, |
737b758c | 1550 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1551 | name_len++; /* trailing null */ |
1552 | name_len *= 2; | |
1553 | pSMB->OldFileName[name_len] = 0; /* pad */ | |
1554 | pSMB->OldFileName[name_len + 1] = 0x04; | |
1555 | name_len2 = | |
b1a45695 | 1556 | cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2], |
737b758c | 1557 | toName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1558 | name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; |
1559 | name_len2 *= 2; /* convert to bytes */ | |
1560 | } else { /* BB improve the check for buffer overruns BB */ | |
1561 | name_len = strnlen(fromName, PATH_MAX); | |
1562 | name_len++; /* trailing null */ | |
1563 | strncpy(pSMB->OldFileName, fromName, name_len); | |
1564 | name_len2 = strnlen(toName, PATH_MAX); | |
1565 | name_len2++; /* trailing null */ | |
1566 | pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */ | |
1567 | strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2); | |
1568 | name_len2++; /* trailing null */ | |
1569 | name_len2++; /* signature byte */ | |
1570 | } | |
1571 | ||
1572 | count = 1 /* string type byte */ + name_len + name_len2; | |
1573 | pSMB->hdr.smb_buf_length += count; | |
1574 | pSMB->ByteCount = cpu_to_le16(count); | |
1575 | ||
1576 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1577 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
1578 | if (rc) { | |
1579 | cFYI(1, ("Send error in hard link (NT rename) = %d", rc)); | |
1580 | } | |
1581 | cifs_buf_release(pSMB); | |
1582 | if (rc == -EAGAIN) | |
1583 | goto winCreateHardLinkRetry; | |
1584 | ||
1585 | return rc; | |
1586 | } | |
1587 | ||
1588 | int | |
1589 | CIFSSMBUnixQuerySymLink(const int xid, struct cifsTconInfo *tcon, | |
1590 | const unsigned char *searchName, | |
1591 | char *symlinkinfo, const int buflen, | |
1592 | const struct nls_table *nls_codepage) | |
1593 | { | |
1594 | /* SMB_QUERY_FILE_UNIX_LINK */ | |
1595 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
1596 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
1597 | int rc = 0; | |
1598 | int bytes_returned; | |
1599 | int name_len; | |
1600 | __u16 params, byte_count; | |
1601 | ||
1602 | cFYI(1, ("In QPathSymLinkInfo (Unix) for path %s", searchName)); | |
1603 | ||
1604 | querySymLinkRetry: | |
1605 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
1606 | (void **) &pSMBr); | |
1607 | if (rc) | |
1608 | return rc; | |
1609 | ||
1610 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1611 | name_len = | |
1612 | cifs_strtoUCS((wchar_t *) pSMB->FileName, searchName, PATH_MAX | |
1613 | /* find define for this maxpathcomponent */ | |
1614 | , nls_codepage); | |
1615 | name_len++; /* trailing null */ | |
1616 | name_len *= 2; | |
1617 | } else { /* BB improve the check for buffer overruns BB */ | |
1618 | name_len = strnlen(searchName, PATH_MAX); | |
1619 | name_len++; /* trailing null */ | |
1620 | strncpy(pSMB->FileName, searchName, name_len); | |
1621 | } | |
1622 | ||
1623 | params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ; | |
1624 | pSMB->TotalDataCount = 0; | |
1625 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
1626 | /* BB find exact max data count below from sess structure BB */ | |
1627 | pSMB->MaxDataCount = cpu_to_le16(4000); | |
1628 | pSMB->MaxSetupCount = 0; | |
1629 | pSMB->Reserved = 0; | |
1630 | pSMB->Flags = 0; | |
1631 | pSMB->Timeout = 0; | |
1632 | pSMB->Reserved2 = 0; | |
1633 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
1634 | struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); | |
1635 | pSMB->DataCount = 0; | |
1636 | pSMB->DataOffset = 0; | |
1637 | pSMB->SetupCount = 1; | |
1638 | pSMB->Reserved3 = 0; | |
1639 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
1640 | byte_count = params + 1 /* pad */ ; | |
1641 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
1642 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
1643 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_UNIX_LINK); | |
1644 | pSMB->Reserved4 = 0; | |
1645 | pSMB->hdr.smb_buf_length += byte_count; | |
1646 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
1647 | ||
1648 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1649 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
1650 | if (rc) { | |
1651 | cFYI(1, ("Send error in QuerySymLinkInfo = %d", rc)); | |
1652 | } else { | |
1653 | /* decode response */ | |
1654 | ||
1655 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
1656 | if (rc || (pSMBr->ByteCount < 2)) | |
1657 | /* BB also check enough total bytes returned */ | |
1658 | rc = -EIO; /* bad smb */ | |
1659 | else { | |
1660 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
1661 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); | |
1662 | ||
1663 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1664 | name_len = UniStrnlen((wchar_t *) ((char *) | |
1665 | &pSMBr->hdr.Protocol +data_offset), | |
1666 | min_t(const int, buflen,count) / 2); | |
737b758c | 1667 | /* BB FIXME investigate remapping reserved chars here */ |
1da177e4 LT |
1668 | cifs_strfromUCS_le(symlinkinfo, |
1669 | (wchar_t *) ((char *)&pSMBr->hdr.Protocol + | |
1670 | data_offset), | |
1671 | name_len, nls_codepage); | |
1672 | } else { | |
1673 | strncpy(symlinkinfo, | |
1674 | (char *) &pSMBr->hdr.Protocol + | |
1675 | data_offset, | |
1676 | min_t(const int, buflen, count)); | |
1677 | } | |
1678 | symlinkinfo[buflen] = 0; | |
1679 | /* just in case so calling code does not go off the end of buffer */ | |
1680 | } | |
1681 | } | |
1682 | cifs_buf_release(pSMB); | |
1683 | if (rc == -EAGAIN) | |
1684 | goto querySymLinkRetry; | |
1685 | return rc; | |
1686 | } | |
1687 | ||
1688 | int | |
1689 | CIFSSMBQueryReparseLinkInfo(const int xid, struct cifsTconInfo *tcon, | |
1690 | const unsigned char *searchName, | |
1691 | char *symlinkinfo, const int buflen,__u16 fid, | |
1692 | const struct nls_table *nls_codepage) | |
1693 | { | |
1694 | int rc = 0; | |
1695 | int bytes_returned; | |
1696 | int name_len; | |
1697 | struct smb_com_transaction_ioctl_req * pSMB; | |
1698 | struct smb_com_transaction_ioctl_rsp * pSMBr; | |
1699 | ||
1700 | cFYI(1, ("In Windows reparse style QueryLink for path %s", searchName)); | |
1701 | rc = smb_init(SMB_COM_NT_TRANSACT, 23, tcon, (void **) &pSMB, | |
1702 | (void **) &pSMBr); | |
1703 | if (rc) | |
1704 | return rc; | |
1705 | ||
1706 | pSMB->TotalParameterCount = 0 ; | |
1707 | pSMB->TotalDataCount = 0; | |
1708 | pSMB->MaxParameterCount = cpu_to_le32(2); | |
1709 | /* BB find exact data count max from sess structure BB */ | |
1710 | pSMB->MaxDataCount = cpu_to_le32(4000); | |
1711 | pSMB->MaxSetupCount = 4; | |
1712 | pSMB->Reserved = 0; | |
1713 | pSMB->ParameterOffset = 0; | |
1714 | pSMB->DataCount = 0; | |
1715 | pSMB->DataOffset = 0; | |
1716 | pSMB->SetupCount = 4; | |
1717 | pSMB->SubCommand = cpu_to_le16(NT_TRANSACT_IOCTL); | |
1718 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
1719 | pSMB->FunctionCode = cpu_to_le32(FSCTL_GET_REPARSE_POINT); | |
1720 | pSMB->IsFsctl = 1; /* FSCTL */ | |
1721 | pSMB->IsRootFlag = 0; | |
1722 | pSMB->Fid = fid; /* file handle always le */ | |
1723 | pSMB->ByteCount = 0; | |
1724 | ||
1725 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1726 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
1727 | if (rc) { | |
1728 | cFYI(1, ("Send error in QueryReparseLinkInfo = %d", rc)); | |
1729 | } else { /* decode response */ | |
1730 | __u32 data_offset = le32_to_cpu(pSMBr->DataOffset); | |
1731 | __u32 data_count = le32_to_cpu(pSMBr->DataCount); | |
1732 | if ((pSMBr->ByteCount < 2) || (data_offset > 512)) | |
1733 | /* BB also check enough total bytes returned */ | |
1734 | rc = -EIO; /* bad smb */ | |
1735 | else { | |
1736 | if(data_count && (data_count < 2048)) { | |
1737 | char * end_of_smb = pSMBr->ByteCount + (char *)&pSMBr->ByteCount; | |
1738 | ||
1739 | struct reparse_data * reparse_buf = (struct reparse_data *) | |
1740 | ((char *)&pSMBr->hdr.Protocol + data_offset); | |
1741 | if((char*)reparse_buf >= end_of_smb) { | |
1742 | rc = -EIO; | |
1743 | goto qreparse_out; | |
1744 | } | |
1745 | if((reparse_buf->LinkNamesBuf + | |
1746 | reparse_buf->TargetNameOffset + | |
1747 | reparse_buf->TargetNameLen) > | |
1748 | end_of_smb) { | |
1749 | cFYI(1,("reparse buf extended beyond SMB")); | |
1750 | rc = -EIO; | |
1751 | goto qreparse_out; | |
1752 | } | |
1753 | ||
1754 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1755 | name_len = UniStrnlen((wchar_t *) | |
1756 | (reparse_buf->LinkNamesBuf + | |
1757 | reparse_buf->TargetNameOffset), | |
1758 | min(buflen/2, reparse_buf->TargetNameLen / 2)); | |
1759 | cifs_strfromUCS_le(symlinkinfo, | |
1760 | (wchar_t *) (reparse_buf->LinkNamesBuf + | |
1761 | reparse_buf->TargetNameOffset), | |
1762 | name_len, nls_codepage); | |
1763 | } else { /* ASCII names */ | |
1764 | strncpy(symlinkinfo,reparse_buf->LinkNamesBuf + | |
1765 | reparse_buf->TargetNameOffset, | |
1766 | min_t(const int, buflen, reparse_buf->TargetNameLen)); | |
1767 | } | |
1768 | } else { | |
1769 | rc = -EIO; | |
1770 | cFYI(1,("Invalid return data count on get reparse info ioctl")); | |
1771 | } | |
1772 | symlinkinfo[buflen] = 0; /* just in case so the caller | |
1773 | does not go off the end of the buffer */ | |
1774 | cFYI(1,("readlink result - %s ",symlinkinfo)); | |
1775 | } | |
1776 | } | |
1777 | qreparse_out: | |
1778 | if (pSMB) | |
1779 | cifs_buf_release(pSMB); | |
1780 | ||
1781 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
1782 | since file handle passed in no longer valid */ | |
1783 | ||
1784 | return rc; | |
1785 | } | |
1786 | ||
1787 | #ifdef CONFIG_CIFS_POSIX | |
1788 | ||
1789 | /*Convert an Access Control Entry from wire format to local POSIX xattr format*/ | |
1790 | static void cifs_convert_ace(posix_acl_xattr_entry * ace, struct cifs_posix_ace * cifs_ace) | |
1791 | { | |
1792 | /* u8 cifs fields do not need le conversion */ | |
1793 | ace->e_perm = (__u16)cifs_ace->cifs_e_perm; | |
1794 | ace->e_tag = (__u16)cifs_ace->cifs_e_tag; | |
1795 | ace->e_id = (__u32)le64_to_cpu(cifs_ace->cifs_uid); | |
1796 | /* cFYI(1,("perm %d tag %d id %d",ace->e_perm,ace->e_tag,ace->e_id)); */ | |
1797 | ||
1798 | return; | |
1799 | } | |
1800 | ||
1801 | /* Convert ACL from CIFS POSIX wire format to local Linux POSIX ACL xattr */ | |
737b758c SF |
1802 | static int cifs_copy_posix_acl(char * trgt,char * src, const int buflen, |
1803 | const int acl_type,const int size_of_data_area) | |
1da177e4 LT |
1804 | { |
1805 | int size = 0; | |
1806 | int i; | |
1807 | __u16 count; | |
1808 | struct cifs_posix_ace * pACE; | |
1809 | struct cifs_posix_acl * cifs_acl = (struct cifs_posix_acl *)src; | |
1810 | posix_acl_xattr_header * local_acl = (posix_acl_xattr_header *)trgt; | |
1811 | ||
1812 | if (le16_to_cpu(cifs_acl->version) != CIFS_ACL_VERSION) | |
1813 | return -EOPNOTSUPP; | |
1814 | ||
1815 | if(acl_type & ACL_TYPE_ACCESS) { | |
1816 | count = le16_to_cpu(cifs_acl->access_entry_count); | |
1817 | pACE = &cifs_acl->ace_array[0]; | |
1818 | size = sizeof(struct cifs_posix_acl); | |
1819 | size += sizeof(struct cifs_posix_ace) * count; | |
1820 | /* check if we would go beyond end of SMB */ | |
1821 | if(size_of_data_area < size) { | |
1822 | cFYI(1,("bad CIFS POSIX ACL size %d vs. %d",size_of_data_area,size)); | |
1823 | return -EINVAL; | |
1824 | } | |
1825 | } else if(acl_type & ACL_TYPE_DEFAULT) { | |
1826 | count = le16_to_cpu(cifs_acl->access_entry_count); | |
1827 | size = sizeof(struct cifs_posix_acl); | |
1828 | size += sizeof(struct cifs_posix_ace) * count; | |
1829 | /* skip past access ACEs to get to default ACEs */ | |
1830 | pACE = &cifs_acl->ace_array[count]; | |
1831 | count = le16_to_cpu(cifs_acl->default_entry_count); | |
1832 | size += sizeof(struct cifs_posix_ace) * count; | |
1833 | /* check if we would go beyond end of SMB */ | |
1834 | if(size_of_data_area < size) | |
1835 | return -EINVAL; | |
1836 | } else { | |
1837 | /* illegal type */ | |
1838 | return -EINVAL; | |
1839 | } | |
1840 | ||
1841 | size = posix_acl_xattr_size(count); | |
1842 | if((buflen == 0) || (local_acl == NULL)) { | |
1843 | /* used to query ACL EA size */ | |
1844 | } else if(size > buflen) { | |
1845 | return -ERANGE; | |
1846 | } else /* buffer big enough */ { | |
1847 | local_acl->a_version = POSIX_ACL_XATTR_VERSION; | |
1848 | for(i = 0;i < count ;i++) { | |
1849 | cifs_convert_ace(&local_acl->a_entries[i],pACE); | |
1850 | pACE ++; | |
1851 | } | |
1852 | } | |
1853 | return size; | |
1854 | } | |
1855 | ||
1856 | static __u16 convert_ace_to_cifs_ace(struct cifs_posix_ace * cifs_ace, | |
1857 | const posix_acl_xattr_entry * local_ace) | |
1858 | { | |
1859 | __u16 rc = 0; /* 0 = ACL converted ok */ | |
1860 | ||
1861 | cifs_ace->cifs_e_perm = (__u8)cpu_to_le16(local_ace->e_perm); | |
1862 | cifs_ace->cifs_e_tag = (__u8)cpu_to_le16(local_ace->e_tag); | |
1863 | /* BB is there a better way to handle the large uid? */ | |
1864 | if(local_ace->e_id == -1) { | |
1865 | /* Probably no need to le convert -1 on any arch but can not hurt */ | |
1866 | cifs_ace->cifs_uid = cpu_to_le64(-1); | |
1867 | } else | |
1868 | cifs_ace->cifs_uid = (__u64)cpu_to_le32(local_ace->e_id); | |
1869 | /*cFYI(1,("perm %d tag %d id %d",ace->e_perm,ace->e_tag,ace->e_id));*/ | |
1870 | return rc; | |
1871 | } | |
1872 | ||
1873 | /* Convert ACL from local Linux POSIX xattr to CIFS POSIX ACL wire format */ | |
1874 | static __u16 ACL_to_cifs_posix(char * parm_data,const char * pACL,const int buflen, | |
1875 | const int acl_type) | |
1876 | { | |
1877 | __u16 rc = 0; | |
1878 | struct cifs_posix_acl * cifs_acl = (struct cifs_posix_acl *)parm_data; | |
1879 | posix_acl_xattr_header * local_acl = (posix_acl_xattr_header *)pACL; | |
1880 | int count; | |
1881 | int i; | |
1882 | ||
1883 | if((buflen == 0) || (pACL == NULL) || (cifs_acl == NULL)) | |
1884 | return 0; | |
1885 | ||
1886 | count = posix_acl_xattr_count((size_t)buflen); | |
1887 | cFYI(1,("setting acl with %d entries from buf of length %d and version of %d", | |
1888 | count,buflen,local_acl->a_version)); | |
1889 | if(local_acl->a_version != 2) { | |
1890 | cFYI(1,("unknown POSIX ACL version %d",local_acl->a_version)); | |
1891 | return 0; | |
1892 | } | |
1893 | cifs_acl->version = cpu_to_le16(1); | |
1894 | if(acl_type == ACL_TYPE_ACCESS) | |
1895 | cifs_acl->access_entry_count = count; | |
1896 | else if(acl_type == ACL_TYPE_DEFAULT) | |
1897 | cifs_acl->default_entry_count = count; | |
1898 | else { | |
1899 | cFYI(1,("unknown ACL type %d",acl_type)); | |
1900 | return 0; | |
1901 | } | |
1902 | for(i=0;i<count;i++) { | |
1903 | rc = convert_ace_to_cifs_ace(&cifs_acl->ace_array[i], | |
1904 | &local_acl->a_entries[i]); | |
1905 | if(rc != 0) { | |
1906 | /* ACE not converted */ | |
1907 | break; | |
1908 | } | |
1909 | } | |
1910 | if(rc == 0) { | |
1911 | rc = (__u16)(count * sizeof(struct cifs_posix_ace)); | |
1912 | rc += sizeof(struct cifs_posix_acl); | |
1913 | /* BB add check to make sure ACL does not overflow SMB */ | |
1914 | } | |
1915 | return rc; | |
1916 | } | |
1917 | ||
1918 | int | |
1919 | CIFSSMBGetPosixACL(const int xid, struct cifsTconInfo *tcon, | |
1920 | const unsigned char *searchName, | |
1921 | char *acl_inf, const int buflen, const int acl_type, | |
737b758c | 1922 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
1923 | { |
1924 | /* SMB_QUERY_POSIX_ACL */ | |
1925 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
1926 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
1927 | int rc = 0; | |
1928 | int bytes_returned; | |
1929 | int name_len; | |
1930 | __u16 params, byte_count; | |
1931 | ||
1932 | cFYI(1, ("In GetPosixACL (Unix) for path %s", searchName)); | |
1933 | ||
1934 | queryAclRetry: | |
1935 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
1936 | (void **) &pSMBr); | |
1937 | if (rc) | |
1938 | return rc; | |
1939 | ||
1940 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1941 | name_len = | |
b1a45695 | 1942 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 1943 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1944 | name_len++; /* trailing null */ |
1945 | name_len *= 2; | |
1946 | pSMB->FileName[name_len] = 0; | |
1947 | pSMB->FileName[name_len+1] = 0; | |
1948 | } else { /* BB improve the check for buffer overruns BB */ | |
1949 | name_len = strnlen(searchName, PATH_MAX); | |
1950 | name_len++; /* trailing null */ | |
1951 | strncpy(pSMB->FileName, searchName, name_len); | |
1952 | } | |
1953 | ||
1954 | params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ; | |
1955 | pSMB->TotalDataCount = 0; | |
1956 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
1957 | /* BB find exact max data count below from sess structure BB */ | |
1958 | pSMB->MaxDataCount = cpu_to_le16(4000); | |
1959 | pSMB->MaxSetupCount = 0; | |
1960 | pSMB->Reserved = 0; | |
1961 | pSMB->Flags = 0; | |
1962 | pSMB->Timeout = 0; | |
1963 | pSMB->Reserved2 = 0; | |
1964 | pSMB->ParameterOffset = cpu_to_le16( | |
1965 | offsetof(struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); | |
1966 | pSMB->DataCount = 0; | |
1967 | pSMB->DataOffset = 0; | |
1968 | pSMB->SetupCount = 1; | |
1969 | pSMB->Reserved3 = 0; | |
1970 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
1971 | byte_count = params + 1 /* pad */ ; | |
1972 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
1973 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
1974 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_POSIX_ACL); | |
1975 | pSMB->Reserved4 = 0; | |
1976 | pSMB->hdr.smb_buf_length += byte_count; | |
1977 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
1978 | ||
1979 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1980 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
1981 | if (rc) { | |
1982 | cFYI(1, ("Send error in Query POSIX ACL = %d", rc)); | |
1983 | } else { | |
1984 | /* decode response */ | |
1985 | ||
1986 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
1987 | if (rc || (pSMBr->ByteCount < 2)) | |
1988 | /* BB also check enough total bytes returned */ | |
1989 | rc = -EIO; /* bad smb */ | |
1990 | else { | |
1991 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
1992 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); | |
1993 | rc = cifs_copy_posix_acl(acl_inf, | |
1994 | (char *)&pSMBr->hdr.Protocol+data_offset, | |
1995 | buflen,acl_type,count); | |
1996 | } | |
1997 | } | |
1998 | cifs_buf_release(pSMB); | |
1999 | if (rc == -EAGAIN) | |
2000 | goto queryAclRetry; | |
2001 | return rc; | |
2002 | } | |
2003 | ||
2004 | int | |
2005 | CIFSSMBSetPosixACL(const int xid, struct cifsTconInfo *tcon, | |
2006 | const unsigned char *fileName, | |
737b758c SF |
2007 | const char *local_acl, const int buflen, |
2008 | const int acl_type, | |
2009 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
2010 | { |
2011 | struct smb_com_transaction2_spi_req *pSMB = NULL; | |
2012 | struct smb_com_transaction2_spi_rsp *pSMBr = NULL; | |
2013 | char *parm_data; | |
2014 | int name_len; | |
2015 | int rc = 0; | |
2016 | int bytes_returned = 0; | |
2017 | __u16 params, byte_count, data_count, param_offset, offset; | |
2018 | ||
2019 | cFYI(1, ("In SetPosixACL (Unix) for path %s", fileName)); | |
2020 | setAclRetry: | |
2021 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2022 | (void **) &pSMBr); | |
2023 | if (rc) | |
2024 | return rc; | |
2025 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2026 | name_len = | |
b1a45695 | 2027 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 2028 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2029 | name_len++; /* trailing null */ |
2030 | name_len *= 2; | |
2031 | } else { /* BB improve the check for buffer overruns BB */ | |
2032 | name_len = strnlen(fileName, PATH_MAX); | |
2033 | name_len++; /* trailing null */ | |
2034 | strncpy(pSMB->FileName, fileName, name_len); | |
2035 | } | |
2036 | params = 6 + name_len; | |
2037 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
2038 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB size from sess */ | |
2039 | pSMB->MaxSetupCount = 0; | |
2040 | pSMB->Reserved = 0; | |
2041 | pSMB->Flags = 0; | |
2042 | pSMB->Timeout = 0; | |
2043 | pSMB->Reserved2 = 0; | |
2044 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
2045 | InformationLevel) - 4; | |
2046 | offset = param_offset + params; | |
2047 | parm_data = ((char *) &pSMB->hdr.Protocol) + offset; | |
2048 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
2049 | ||
2050 | /* convert to on the wire format for POSIX ACL */ | |
2051 | data_count = ACL_to_cifs_posix(parm_data,local_acl,buflen,acl_type); | |
2052 | ||
2053 | if(data_count == 0) { | |
2054 | rc = -EOPNOTSUPP; | |
2055 | goto setACLerrorExit; | |
2056 | } | |
2057 | pSMB->DataOffset = cpu_to_le16(offset); | |
2058 | pSMB->SetupCount = 1; | |
2059 | pSMB->Reserved3 = 0; | |
2060 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
2061 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_POSIX_ACL); | |
2062 | byte_count = 3 /* pad */ + params + data_count; | |
2063 | pSMB->DataCount = cpu_to_le16(data_count); | |
2064 | pSMB->TotalDataCount = pSMB->DataCount; | |
2065 | pSMB->ParameterCount = cpu_to_le16(params); | |
2066 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
2067 | pSMB->Reserved4 = 0; | |
2068 | pSMB->hdr.smb_buf_length += byte_count; | |
2069 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2070 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2071 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2072 | if (rc) { | |
2073 | cFYI(1, ("Set POSIX ACL returned %d", rc)); | |
2074 | } | |
2075 | ||
2076 | setACLerrorExit: | |
2077 | cifs_buf_release(pSMB); | |
2078 | if (rc == -EAGAIN) | |
2079 | goto setAclRetry; | |
2080 | return rc; | |
2081 | } | |
2082 | ||
f654bac2 SF |
2083 | /* BB fix tabs in this function FIXME BB */ |
2084 | int | |
2085 | CIFSGetExtAttr(const int xid, struct cifsTconInfo *tcon, | |
2086 | const int netfid, __u64 * pExtAttrBits, __u64 *pMask) | |
2087 | { | |
2088 | int rc = 0; | |
2089 | struct smb_t2_qfi_req *pSMB = NULL; | |
2090 | struct smb_t2_qfi_rsp *pSMBr = NULL; | |
2091 | int bytes_returned; | |
2092 | __u16 params, byte_count; | |
2093 | ||
2094 | cFYI(1,("In GetExtAttr")); | |
2095 | if(tcon == NULL) | |
2096 | return -ENODEV; | |
2097 | ||
2098 | GetExtAttrRetry: | |
2099 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2100 | (void **) &pSMBr); | |
2101 | if (rc) | |
2102 | return rc; | |
2103 | ||
c67593a0 | 2104 | params = 2 /* level */ +2 /* fid */; |
f654bac2 | 2105 | pSMB->t2.TotalDataCount = 0; |
c67593a0 | 2106 | pSMB->t2.MaxParameterCount = cpu_to_le16(4); |
f654bac2 SF |
2107 | /* BB find exact max data count below from sess structure BB */ |
2108 | pSMB->t2.MaxDataCount = cpu_to_le16(4000); | |
2109 | pSMB->t2.MaxSetupCount = 0; | |
2110 | pSMB->t2.Reserved = 0; | |
2111 | pSMB->t2.Flags = 0; | |
2112 | pSMB->t2.Timeout = 0; | |
2113 | pSMB->t2.Reserved2 = 0; | |
c67593a0 SF |
2114 | pSMB->t2.ParameterOffset = cpu_to_le16(offsetof(struct smb_t2_qfi_req, |
2115 | Fid) - 4); | |
f654bac2 SF |
2116 | pSMB->t2.DataCount = 0; |
2117 | pSMB->t2.DataOffset = 0; | |
2118 | pSMB->t2.SetupCount = 1; | |
2119 | pSMB->t2.Reserved3 = 0; | |
2120 | pSMB->t2.SubCommand = cpu_to_le16(TRANS2_QUERY_FILE_INFORMATION); | |
c67593a0 | 2121 | byte_count = params + 1 /* pad */ ; |
f654bac2 SF |
2122 | pSMB->t2.TotalParameterCount = cpu_to_le16(params); |
2123 | pSMB->t2.ParameterCount = pSMB->t2.TotalParameterCount; | |
2124 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_ATTR_FLAGS); | |
c67593a0 | 2125 | pSMB->Pad = 0; |
f654bac2 SF |
2126 | pSMB->Fid = netfid; |
2127 | pSMB->hdr.smb_buf_length += byte_count; | |
2128 | pSMB->t2.ByteCount = cpu_to_le16(byte_count); | |
2129 | ||
2130 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2131 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2132 | if (rc) { | |
2133 | cFYI(1, ("error %d in GetExtAttr", rc)); | |
2134 | } else { | |
2135 | /* decode response */ | |
2136 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
2137 | if (rc || (pSMBr->ByteCount < 2)) | |
2138 | /* BB also check enough total bytes returned */ | |
2139 | /* If rc should we check for EOPNOSUPP and | |
2140 | disable the srvino flag? or in caller? */ | |
2141 | rc = -EIO; /* bad smb */ | |
2142 | else { | |
2143 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
2144 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); | |
2145 | struct file_chattr_info * pfinfo; | |
2146 | /* BB Do we need a cast or hash here ? */ | |
2147 | if(count != 16) { | |
2148 | cFYI(1, ("Illegal size ret in GetExtAttr")); | |
2149 | rc = -EIO; | |
2150 | goto GetExtAttrOut; | |
2151 | } | |
2152 | pfinfo = (struct file_chattr_info *) | |
2153 | (data_offset + (char *) &pSMBr->hdr.Protocol); | |
2154 | *pExtAttrBits = le64_to_cpu(pfinfo->mode); | |
2155 | *pMask = le64_to_cpu(pfinfo->mask); | |
2156 | } | |
2157 | } | |
2158 | GetExtAttrOut: | |
2159 | cifs_buf_release(pSMB); | |
2160 | if (rc == -EAGAIN) | |
2161 | goto GetExtAttrRetry; | |
2162 | return rc; | |
2163 | } | |
2164 | ||
2165 | ||
2166 | #endif /* CONFIG_POSIX */ | |
1da177e4 LT |
2167 | |
2168 | int | |
2169 | CIFSSMBQPathInfo(const int xid, struct cifsTconInfo *tcon, | |
2170 | const unsigned char *searchName, | |
2171 | FILE_ALL_INFO * pFindData, | |
737b758c | 2172 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
2173 | { |
2174 | /* level 263 SMB_QUERY_FILE_ALL_INFO */ | |
2175 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
2176 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
2177 | int rc = 0; | |
2178 | int bytes_returned; | |
2179 | int name_len; | |
2180 | __u16 params, byte_count; | |
2181 | ||
2182 | /* cFYI(1, ("In QPathInfo path %s", searchName)); */ | |
2183 | QPathInfoRetry: | |
2184 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2185 | (void **) &pSMBr); | |
2186 | if (rc) | |
2187 | return rc; | |
2188 | ||
2189 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2190 | name_len = | |
b1a45695 | 2191 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 2192 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2193 | name_len++; /* trailing null */ |
2194 | name_len *= 2; | |
2195 | } else { /* BB improve the check for buffer overruns BB */ | |
2196 | name_len = strnlen(searchName, PATH_MAX); | |
2197 | name_len++; /* trailing null */ | |
2198 | strncpy(pSMB->FileName, searchName, name_len); | |
2199 | } | |
2200 | ||
2201 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */ ; | |
2202 | pSMB->TotalDataCount = 0; | |
2203 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
2204 | pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ | |
2205 | pSMB->MaxSetupCount = 0; | |
2206 | pSMB->Reserved = 0; | |
2207 | pSMB->Flags = 0; | |
2208 | pSMB->Timeout = 0; | |
2209 | pSMB->Reserved2 = 0; | |
2210 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
2211 | struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); | |
2212 | pSMB->DataCount = 0; | |
2213 | pSMB->DataOffset = 0; | |
2214 | pSMB->SetupCount = 1; | |
2215 | pSMB->Reserved3 = 0; | |
2216 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
2217 | byte_count = params + 1 /* pad */ ; | |
2218 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
2219 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2220 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_ALL_INFO); | |
2221 | pSMB->Reserved4 = 0; | |
2222 | pSMB->hdr.smb_buf_length += byte_count; | |
2223 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2224 | ||
2225 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2226 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2227 | if (rc) { | |
2228 | cFYI(1, ("Send error in QPathInfo = %d", rc)); | |
2229 | } else { /* decode response */ | |
2230 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
2231 | ||
2232 | if (rc || (pSMBr->ByteCount < 40)) | |
2233 | rc = -EIO; /* bad smb */ | |
2234 | else if (pFindData){ | |
2235 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
2236 | memcpy((char *) pFindData, | |
2237 | (char *) &pSMBr->hdr.Protocol + | |
2238 | data_offset, sizeof (FILE_ALL_INFO)); | |
2239 | } else | |
2240 | rc = -ENOMEM; | |
2241 | } | |
2242 | cifs_buf_release(pSMB); | |
2243 | if (rc == -EAGAIN) | |
2244 | goto QPathInfoRetry; | |
2245 | ||
2246 | return rc; | |
2247 | } | |
2248 | ||
2249 | int | |
2250 | CIFSSMBUnixQPathInfo(const int xid, struct cifsTconInfo *tcon, | |
2251 | const unsigned char *searchName, | |
2252 | FILE_UNIX_BASIC_INFO * pFindData, | |
737b758c | 2253 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
2254 | { |
2255 | /* SMB_QUERY_FILE_UNIX_BASIC */ | |
2256 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
2257 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
2258 | int rc = 0; | |
2259 | int bytes_returned = 0; | |
2260 | int name_len; | |
2261 | __u16 params, byte_count; | |
2262 | ||
2263 | cFYI(1, ("In QPathInfo (Unix) the path %s", searchName)); | |
2264 | UnixQPathInfoRetry: | |
2265 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2266 | (void **) &pSMBr); | |
2267 | if (rc) | |
2268 | return rc; | |
2269 | ||
2270 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2271 | name_len = | |
b1a45695 | 2272 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 2273 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2274 | name_len++; /* trailing null */ |
2275 | name_len *= 2; | |
2276 | } else { /* BB improve the check for buffer overruns BB */ | |
2277 | name_len = strnlen(searchName, PATH_MAX); | |
2278 | name_len++; /* trailing null */ | |
2279 | strncpy(pSMB->FileName, searchName, name_len); | |
2280 | } | |
2281 | ||
2282 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */ ; | |
2283 | pSMB->TotalDataCount = 0; | |
2284 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
2285 | /* BB find exact max SMB PDU from sess structure BB */ | |
2286 | pSMB->MaxDataCount = cpu_to_le16(4000); | |
2287 | pSMB->MaxSetupCount = 0; | |
2288 | pSMB->Reserved = 0; | |
2289 | pSMB->Flags = 0; | |
2290 | pSMB->Timeout = 0; | |
2291 | pSMB->Reserved2 = 0; | |
2292 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
2293 | struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); | |
2294 | pSMB->DataCount = 0; | |
2295 | pSMB->DataOffset = 0; | |
2296 | pSMB->SetupCount = 1; | |
2297 | pSMB->Reserved3 = 0; | |
2298 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
2299 | byte_count = params + 1 /* pad */ ; | |
2300 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
2301 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2302 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_UNIX_BASIC); | |
2303 | pSMB->Reserved4 = 0; | |
2304 | pSMB->hdr.smb_buf_length += byte_count; | |
2305 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2306 | ||
2307 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2308 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2309 | if (rc) { | |
2310 | cFYI(1, ("Send error in QPathInfo = %d", rc)); | |
2311 | } else { /* decode response */ | |
2312 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
2313 | ||
2314 | if (rc || (pSMBr->ByteCount < sizeof(FILE_UNIX_BASIC_INFO))) { | |
2315 | rc = -EIO; /* bad smb */ | |
2316 | } else { | |
2317 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
2318 | memcpy((char *) pFindData, | |
2319 | (char *) &pSMBr->hdr.Protocol + | |
2320 | data_offset, | |
2321 | sizeof (FILE_UNIX_BASIC_INFO)); | |
2322 | } | |
2323 | } | |
2324 | cifs_buf_release(pSMB); | |
2325 | if (rc == -EAGAIN) | |
2326 | goto UnixQPathInfoRetry; | |
2327 | ||
2328 | return rc; | |
2329 | } | |
2330 | ||
2331 | #if 0 /* function unused at present */ | |
2332 | int CIFSFindSingle(const int xid, struct cifsTconInfo *tcon, | |
2333 | const char *searchName, FILE_ALL_INFO * findData, | |
2334 | const struct nls_table *nls_codepage) | |
2335 | { | |
2336 | /* level 257 SMB_ */ | |
2337 | TRANSACTION2_FFIRST_REQ *pSMB = NULL; | |
2338 | TRANSACTION2_FFIRST_RSP *pSMBr = NULL; | |
2339 | int rc = 0; | |
2340 | int bytes_returned; | |
2341 | int name_len; | |
2342 | __u16 params, byte_count; | |
2343 | ||
2344 | cFYI(1, ("In FindUnique")); | |
2345 | findUniqueRetry: | |
2346 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2347 | (void **) &pSMBr); | |
2348 | if (rc) | |
2349 | return rc; | |
2350 | ||
2351 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2352 | name_len = | |
b1a45695 | 2353 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, PATH_MAX |
1da177e4 LT |
2354 | /* find define for this maxpathcomponent */ |
2355 | , nls_codepage); | |
2356 | name_len++; /* trailing null */ | |
2357 | name_len *= 2; | |
2358 | } else { /* BB improve the check for buffer overruns BB */ | |
2359 | name_len = strnlen(searchName, PATH_MAX); | |
2360 | name_len++; /* trailing null */ | |
2361 | strncpy(pSMB->FileName, searchName, name_len); | |
2362 | } | |
2363 | ||
2364 | params = 12 + name_len /* includes null */ ; | |
2365 | pSMB->TotalDataCount = 0; /* no EAs */ | |
2366 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
2367 | pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ | |
2368 | pSMB->MaxSetupCount = 0; | |
2369 | pSMB->Reserved = 0; | |
2370 | pSMB->Flags = 0; | |
2371 | pSMB->Timeout = 0; | |
2372 | pSMB->Reserved2 = 0; | |
2373 | pSMB->ParameterOffset = cpu_to_le16( | |
2374 | offsetof(struct smb_com_transaction2_ffirst_req,InformationLevel) - 4); | |
2375 | pSMB->DataCount = 0; | |
2376 | pSMB->DataOffset = 0; | |
2377 | pSMB->SetupCount = 1; /* one byte, no need to le convert */ | |
2378 | pSMB->Reserved3 = 0; | |
2379 | pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_FIRST); | |
2380 | byte_count = params + 1 /* pad */ ; | |
2381 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
2382 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2383 | pSMB->SearchAttributes = | |
2384 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | | |
2385 | ATTR_DIRECTORY); | |
2386 | pSMB->SearchCount = cpu_to_le16(16); /* BB increase */ | |
2387 | pSMB->SearchFlags = cpu_to_le16(1); | |
2388 | pSMB->InformationLevel = cpu_to_le16(SMB_FIND_FILE_DIRECTORY_INFO); | |
2389 | pSMB->SearchStorageType = 0; /* BB what should we set this to? BB */ | |
2390 | pSMB->hdr.smb_buf_length += byte_count; | |
2391 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2392 | ||
2393 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2394 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2395 | ||
2396 | if (rc) { | |
2397 | cFYI(1, ("Send error in FindFileDirInfo = %d", rc)); | |
2398 | } else { /* decode response */ | |
2399 | ||
2400 | /* BB fill in */ | |
2401 | } | |
2402 | ||
2403 | cifs_buf_release(pSMB); | |
2404 | if (rc == -EAGAIN) | |
2405 | goto findUniqueRetry; | |
2406 | ||
2407 | return rc; | |
2408 | } | |
2409 | #endif /* end unused (temporarily) function */ | |
2410 | ||
2411 | /* xid, tcon, searchName and codepage are input parms, rest are returned */ | |
2412 | int | |
2413 | CIFSFindFirst(const int xid, struct cifsTconInfo *tcon, | |
2414 | const char *searchName, | |
2415 | const struct nls_table *nls_codepage, | |
2416 | __u16 * pnetfid, | |
737b758c | 2417 | struct cifs_search_info * psrch_inf, int remap) |
1da177e4 LT |
2418 | { |
2419 | /* level 257 SMB_ */ | |
2420 | TRANSACTION2_FFIRST_REQ *pSMB = NULL; | |
2421 | TRANSACTION2_FFIRST_RSP *pSMBr = NULL; | |
2422 | T2_FFIRST_RSP_PARMS * parms; | |
2423 | int rc = 0; | |
2424 | int bytes_returned = 0; | |
2425 | int name_len; | |
2426 | __u16 params, byte_count; | |
2427 | ||
737b758c | 2428 | cFYI(1, ("In FindFirst for %s",searchName)); |
1da177e4 LT |
2429 | |
2430 | findFirstRetry: | |
2431 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2432 | (void **) &pSMBr); | |
2433 | if (rc) | |
2434 | return rc; | |
2435 | ||
2436 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2437 | name_len = | |
b1a45695 | 2438 | cifsConvertToUCS((__le16 *) pSMB->FileName,searchName, |
737b758c SF |
2439 | PATH_MAX, nls_codepage, remap); |
2440 | /* We can not add the asterik earlier in case | |
2441 | it got remapped to 0xF03A as if it were part of the | |
2442 | directory name instead of a wildcard */ | |
1da177e4 | 2443 | name_len *= 2; |
737b758c SF |
2444 | pSMB->FileName[name_len] = '\\'; |
2445 | pSMB->FileName[name_len+1] = 0; | |
2446 | pSMB->FileName[name_len+2] = '*'; | |
2447 | pSMB->FileName[name_len+3] = 0; | |
2448 | name_len += 4; /* now the trailing null */ | |
1da177e4 LT |
2449 | pSMB->FileName[name_len] = 0; /* null terminate just in case */ |
2450 | pSMB->FileName[name_len+1] = 0; | |
737b758c | 2451 | name_len += 2; |
1da177e4 LT |
2452 | } else { /* BB add check for overrun of SMB buf BB */ |
2453 | name_len = strnlen(searchName, PATH_MAX); | |
1da177e4 LT |
2454 | /* BB fix here and in unicode clause above ie |
2455 | if(name_len > buffersize-header) | |
2456 | free buffer exit; BB */ | |
2457 | strncpy(pSMB->FileName, searchName, name_len); | |
68575476 SF |
2458 | pSMB->FileName[name_len] = '\\'; |
2459 | pSMB->FileName[name_len+1] = '*'; | |
2460 | pSMB->FileName[name_len+2] = 0; | |
2461 | name_len += 3; | |
1da177e4 LT |
2462 | } |
2463 | ||
2464 | params = 12 + name_len /* includes null */ ; | |
2465 | pSMB->TotalDataCount = 0; /* no EAs */ | |
2466 | pSMB->MaxParameterCount = cpu_to_le16(10); | |
2467 | pSMB->MaxDataCount = cpu_to_le16((tcon->ses->server->maxBuf - | |
2468 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
2469 | pSMB->MaxSetupCount = 0; | |
2470 | pSMB->Reserved = 0; | |
2471 | pSMB->Flags = 0; | |
2472 | pSMB->Timeout = 0; | |
2473 | pSMB->Reserved2 = 0; | |
2474 | byte_count = params + 1 /* pad */ ; | |
2475 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
2476 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2477 | pSMB->ParameterOffset = cpu_to_le16( | |
2478 | offsetof(struct smb_com_transaction2_ffirst_req, SearchAttributes) - 4); | |
2479 | pSMB->DataCount = 0; | |
2480 | pSMB->DataOffset = 0; | |
2481 | pSMB->SetupCount = 1; /* one byte, no need to make endian neutral */ | |
2482 | pSMB->Reserved3 = 0; | |
2483 | pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_FIRST); | |
2484 | pSMB->SearchAttributes = | |
2485 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | | |
2486 | ATTR_DIRECTORY); | |
2487 | pSMB->SearchCount= cpu_to_le16(CIFSMaxBufSize/sizeof(FILE_UNIX_INFO)); | |
2488 | pSMB->SearchFlags = cpu_to_le16(CIFS_SEARCH_CLOSE_AT_END | | |
2489 | CIFS_SEARCH_RETURN_RESUME); | |
2490 | pSMB->InformationLevel = cpu_to_le16(psrch_inf->info_level); | |
2491 | ||
2492 | /* BB what should we set StorageType to? Does it matter? BB */ | |
2493 | pSMB->SearchStorageType = 0; | |
2494 | pSMB->hdr.smb_buf_length += byte_count; | |
2495 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2496 | ||
2497 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2498 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2499 | ||
2500 | if (rc) {/* BB add logic to retry regular search if Unix search rejected unexpectedly by server */ | |
2501 | /* BB Add code to handle unsupported level rc */ | |
2502 | cFYI(1, ("Error in FindFirst = %d", rc)); | |
2503 | ||
2504 | if (pSMB) | |
2505 | cifs_buf_release(pSMB); | |
2506 | ||
2507 | /* BB eventually could optimize out free and realloc of buf */ | |
2508 | /* for this case */ | |
2509 | if (rc == -EAGAIN) | |
2510 | goto findFirstRetry; | |
2511 | } else { /* decode response */ | |
2512 | /* BB remember to free buffer if error BB */ | |
2513 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
2514 | if(rc == 0) { | |
2515 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) | |
2516 | psrch_inf->unicode = TRUE; | |
2517 | else | |
2518 | psrch_inf->unicode = FALSE; | |
2519 | ||
2520 | psrch_inf->ntwrk_buf_start = (char *)pSMBr; | |
2521 | psrch_inf->srch_entries_start = | |
2522 | (char *) &pSMBr->hdr.Protocol + | |
2523 | le16_to_cpu(pSMBr->t2.DataOffset); | |
1da177e4 LT |
2524 | parms = (T2_FFIRST_RSP_PARMS *)((char *) &pSMBr->hdr.Protocol + |
2525 | le16_to_cpu(pSMBr->t2.ParameterOffset)); | |
2526 | ||
2527 | if(parms->EndofSearch) | |
2528 | psrch_inf->endOfSearch = TRUE; | |
2529 | else | |
2530 | psrch_inf->endOfSearch = FALSE; | |
2531 | ||
2532 | psrch_inf->entries_in_buffer = le16_to_cpu(parms->SearchCount); | |
2533 | psrch_inf->index_of_last_entry = | |
2534 | psrch_inf->entries_in_buffer; | |
1da177e4 LT |
2535 | *pnetfid = parms->SearchHandle; |
2536 | } else { | |
2537 | cifs_buf_release(pSMB); | |
2538 | } | |
2539 | } | |
2540 | ||
2541 | return rc; | |
2542 | } | |
2543 | ||
2544 | int CIFSFindNext(const int xid, struct cifsTconInfo *tcon, | |
2545 | __u16 searchHandle, struct cifs_search_info * psrch_inf) | |
2546 | { | |
2547 | TRANSACTION2_FNEXT_REQ *pSMB = NULL; | |
2548 | TRANSACTION2_FNEXT_RSP *pSMBr = NULL; | |
2549 | T2_FNEXT_RSP_PARMS * parms; | |
2550 | char *response_data; | |
2551 | int rc = 0; | |
2552 | int bytes_returned, name_len; | |
2553 | __u16 params, byte_count; | |
2554 | ||
2555 | cFYI(1, ("In FindNext")); | |
2556 | ||
2557 | if(psrch_inf->endOfSearch == TRUE) | |
2558 | return -ENOENT; | |
2559 | ||
2560 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2561 | (void **) &pSMBr); | |
2562 | if (rc) | |
2563 | return rc; | |
2564 | ||
2565 | params = 14; /* includes 2 bytes of null string, converted to LE below */ | |
2566 | byte_count = 0; | |
2567 | pSMB->TotalDataCount = 0; /* no EAs */ | |
2568 | pSMB->MaxParameterCount = cpu_to_le16(8); | |
2569 | pSMB->MaxDataCount = | |
2570 | cpu_to_le16((tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
2571 | pSMB->MaxSetupCount = 0; | |
2572 | pSMB->Reserved = 0; | |
2573 | pSMB->Flags = 0; | |
2574 | pSMB->Timeout = 0; | |
2575 | pSMB->Reserved2 = 0; | |
2576 | pSMB->ParameterOffset = cpu_to_le16( | |
2577 | offsetof(struct smb_com_transaction2_fnext_req,SearchHandle) - 4); | |
2578 | pSMB->DataCount = 0; | |
2579 | pSMB->DataOffset = 0; | |
2580 | pSMB->SetupCount = 1; | |
2581 | pSMB->Reserved3 = 0; | |
2582 | pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_NEXT); | |
2583 | pSMB->SearchHandle = searchHandle; /* always kept as le */ | |
2584 | pSMB->SearchCount = | |
2585 | cpu_to_le16(CIFSMaxBufSize / sizeof (FILE_UNIX_INFO)); | |
2586 | /* test for Unix extensions */ | |
2587 | /* if (tcon->ses->capabilities & CAP_UNIX) { | |
2588 | pSMB->InformationLevel = cpu_to_le16(SMB_FIND_FILE_UNIX); | |
2589 | psrch_inf->info_level = SMB_FIND_FILE_UNIX; | |
2590 | } else { | |
2591 | pSMB->InformationLevel = | |
2592 | cpu_to_le16(SMB_FIND_FILE_DIRECTORY_INFO); | |
2593 | psrch_inf->info_level = SMB_FIND_FILE_DIRECTORY_INFO; | |
2594 | } */ | |
2595 | pSMB->InformationLevel = cpu_to_le16(psrch_inf->info_level); | |
2596 | pSMB->ResumeKey = psrch_inf->resume_key; | |
2597 | pSMB->SearchFlags = | |
2598 | cpu_to_le16(CIFS_SEARCH_CLOSE_AT_END | CIFS_SEARCH_RETURN_RESUME); | |
2599 | ||
2600 | name_len = psrch_inf->resume_name_len; | |
2601 | params += name_len; | |
2602 | if(name_len < PATH_MAX) { | |
2603 | memcpy(pSMB->ResumeFileName, psrch_inf->presume_name, name_len); | |
2604 | byte_count += name_len; | |
2605 | } else { | |
2606 | rc = -EINVAL; | |
2607 | goto FNext2_err_exit; | |
2608 | } | |
2609 | byte_count = params + 1 /* pad */ ; | |
2610 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
2611 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2612 | pSMB->hdr.smb_buf_length += byte_count; | |
2613 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2614 | ||
2615 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2616 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2617 | ||
2618 | if (rc) { | |
2619 | if (rc == -EBADF) { | |
2620 | psrch_inf->endOfSearch = TRUE; | |
2621 | rc = 0; /* search probably was closed at end of search above */ | |
2622 | } else | |
2623 | cFYI(1, ("FindNext returned = %d", rc)); | |
2624 | } else { /* decode response */ | |
2625 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
2626 | ||
2627 | if(rc == 0) { | |
2628 | /* BB fixme add lock for file (srch_info) struct here */ | |
2629 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) | |
2630 | psrch_inf->unicode = TRUE; | |
2631 | else | |
2632 | psrch_inf->unicode = FALSE; | |
2633 | response_data = (char *) &pSMBr->hdr.Protocol + | |
2634 | le16_to_cpu(pSMBr->t2.ParameterOffset); | |
2635 | parms = (T2_FNEXT_RSP_PARMS *)response_data; | |
2636 | response_data = (char *)&pSMBr->hdr.Protocol + | |
2637 | le16_to_cpu(pSMBr->t2.DataOffset); | |
2638 | cifs_buf_release(psrch_inf->ntwrk_buf_start); | |
2639 | psrch_inf->srch_entries_start = response_data; | |
2640 | psrch_inf->ntwrk_buf_start = (char *)pSMB; | |
2641 | if(parms->EndofSearch) | |
2642 | psrch_inf->endOfSearch = TRUE; | |
2643 | else | |
2644 | psrch_inf->endOfSearch = FALSE; | |
2645 | ||
2646 | psrch_inf->entries_in_buffer = le16_to_cpu(parms->SearchCount); | |
2647 | psrch_inf->index_of_last_entry += | |
2648 | psrch_inf->entries_in_buffer; | |
2649 | /* cFYI(1,("fnxt2 entries in buf %d index_of_last %d",psrch_inf->entries_in_buffer,psrch_inf->index_of_last_entry)); */ | |
2650 | ||
2651 | /* BB fixme add unlock here */ | |
2652 | } | |
2653 | ||
2654 | } | |
2655 | ||
2656 | /* BB On error, should we leave previous search buf (and count and | |
2657 | last entry fields) intact or free the previous one? */ | |
2658 | ||
2659 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
2660 | since file handle passed in no longer valid */ | |
2661 | FNext2_err_exit: | |
2662 | if (rc != 0) | |
2663 | cifs_buf_release(pSMB); | |
2664 | ||
2665 | return rc; | |
2666 | } | |
2667 | ||
2668 | int | |
2669 | CIFSFindClose(const int xid, struct cifsTconInfo *tcon, const __u16 searchHandle) | |
2670 | { | |
2671 | int rc = 0; | |
2672 | FINDCLOSE_REQ *pSMB = NULL; | |
2673 | CLOSE_RSP *pSMBr = NULL; /* BB removeme BB */ | |
2674 | int bytes_returned; | |
2675 | ||
2676 | cFYI(1, ("In CIFSSMBFindClose")); | |
2677 | rc = small_smb_init(SMB_COM_FIND_CLOSE2, 1, tcon, (void **)&pSMB); | |
2678 | ||
2679 | /* no sense returning error if session restarted | |
2680 | as file handle has been closed */ | |
2681 | if(rc == -EAGAIN) | |
2682 | return 0; | |
2683 | if (rc) | |
2684 | return rc; | |
2685 | ||
2686 | pSMBr = (CLOSE_RSP *)pSMB; /* BB removeme BB */ | |
2687 | pSMB->FileID = searchHandle; | |
2688 | pSMB->ByteCount = 0; | |
2689 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2690 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2691 | if (rc) { | |
2692 | cERROR(1, ("Send error in FindClose = %d", rc)); | |
2693 | } | |
2694 | cifs_small_buf_release(pSMB); | |
2695 | ||
2696 | /* Since session is dead, search handle closed on server already */ | |
2697 | if (rc == -EAGAIN) | |
2698 | rc = 0; | |
2699 | ||
2700 | return rc; | |
2701 | } | |
2702 | ||
2703 | #ifdef CONFIG_CIFS_EXPERIMENTAL | |
2704 | int | |
2705 | CIFSGetSrvInodeNumber(const int xid, struct cifsTconInfo *tcon, | |
2706 | const unsigned char *searchName, | |
2707 | __u64 * inode_number, | |
737b758c | 2708 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
2709 | { |
2710 | int rc = 0; | |
2711 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
2712 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
2713 | int name_len, bytes_returned; | |
2714 | __u16 params, byte_count; | |
2715 | ||
2716 | cFYI(1,("In GetSrvInodeNum for %s",searchName)); | |
2717 | if(tcon == NULL) | |
2718 | return -ENODEV; | |
2719 | ||
2720 | GetInodeNumberRetry: | |
2721 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2722 | (void **) &pSMBr); | |
2723 | if (rc) | |
2724 | return rc; | |
2725 | ||
2726 | ||
2727 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2728 | name_len = | |
b1a45695 | 2729 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 2730 | PATH_MAX,nls_codepage, remap); |
1da177e4 LT |
2731 | name_len++; /* trailing null */ |
2732 | name_len *= 2; | |
2733 | } else { /* BB improve the check for buffer overruns BB */ | |
2734 | name_len = strnlen(searchName, PATH_MAX); | |
2735 | name_len++; /* trailing null */ | |
2736 | strncpy(pSMB->FileName, searchName, name_len); | |
2737 | } | |
2738 | ||
2739 | params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ; | |
2740 | pSMB->TotalDataCount = 0; | |
2741 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
2742 | /* BB find exact max data count below from sess structure BB */ | |
2743 | pSMB->MaxDataCount = cpu_to_le16(4000); | |
2744 | pSMB->MaxSetupCount = 0; | |
2745 | pSMB->Reserved = 0; | |
2746 | pSMB->Flags = 0; | |
2747 | pSMB->Timeout = 0; | |
2748 | pSMB->Reserved2 = 0; | |
2749 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
2750 | struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); | |
2751 | pSMB->DataCount = 0; | |
2752 | pSMB->DataOffset = 0; | |
2753 | pSMB->SetupCount = 1; | |
2754 | pSMB->Reserved3 = 0; | |
2755 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
2756 | byte_count = params + 1 /* pad */ ; | |
2757 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
2758 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2759 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_INTERNAL_INFO); | |
2760 | pSMB->Reserved4 = 0; | |
2761 | pSMB->hdr.smb_buf_length += byte_count; | |
2762 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2763 | ||
2764 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2765 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2766 | if (rc) { | |
2767 | cFYI(1, ("error %d in QueryInternalInfo", rc)); | |
2768 | } else { | |
2769 | /* decode response */ | |
2770 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
2771 | if (rc || (pSMBr->ByteCount < 2)) | |
2772 | /* BB also check enough total bytes returned */ | |
2773 | /* If rc should we check for EOPNOSUPP and | |
2774 | disable the srvino flag? or in caller? */ | |
2775 | rc = -EIO; /* bad smb */ | |
2776 | else { | |
2777 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
2778 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); | |
2779 | struct file_internal_info * pfinfo; | |
2780 | /* BB Do we need a cast or hash here ? */ | |
2781 | if(count < 8) { | |
2782 | cFYI(1, ("Illegal size ret in QryIntrnlInf")); | |
2783 | rc = -EIO; | |
2784 | goto GetInodeNumOut; | |
2785 | } | |
2786 | pfinfo = (struct file_internal_info *) | |
2787 | (data_offset + (char *) &pSMBr->hdr.Protocol); | |
2788 | *inode_number = pfinfo->UniqueId; | |
2789 | } | |
2790 | } | |
2791 | GetInodeNumOut: | |
2792 | cifs_buf_release(pSMB); | |
2793 | if (rc == -EAGAIN) | |
2794 | goto GetInodeNumberRetry; | |
2795 | return rc; | |
2796 | } | |
2797 | #endif /* CIFS_EXPERIMENTAL */ | |
2798 | ||
2799 | int | |
2800 | CIFSGetDFSRefer(const int xid, struct cifsSesInfo *ses, | |
2801 | const unsigned char *searchName, | |
2802 | unsigned char **targetUNCs, | |
2803 | unsigned int *number_of_UNC_in_array, | |
737b758c | 2804 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
2805 | { |
2806 | /* TRANS2_GET_DFS_REFERRAL */ | |
2807 | TRANSACTION2_GET_DFS_REFER_REQ *pSMB = NULL; | |
2808 | TRANSACTION2_GET_DFS_REFER_RSP *pSMBr = NULL; | |
2809 | struct dfs_referral_level_3 * referrals = NULL; | |
2810 | int rc = 0; | |
2811 | int bytes_returned; | |
2812 | int name_len; | |
2813 | unsigned int i; | |
2814 | char * temp; | |
2815 | __u16 params, byte_count; | |
2816 | *number_of_UNC_in_array = 0; | |
2817 | *targetUNCs = NULL; | |
2818 | ||
2819 | cFYI(1, ("In GetDFSRefer the path %s", searchName)); | |
2820 | if (ses == NULL) | |
2821 | return -ENODEV; | |
2822 | getDFSRetry: | |
2823 | rc = smb_init(SMB_COM_TRANSACTION2, 15, NULL, (void **) &pSMB, | |
2824 | (void **) &pSMBr); | |
2825 | if (rc) | |
2826 | return rc; | |
2827 | ||
2828 | pSMB->hdr.Tid = ses->ipc_tid; | |
2829 | pSMB->hdr.Uid = ses->Suid; | |
2830 | if (ses->capabilities & CAP_STATUS32) { | |
2831 | pSMB->hdr.Flags2 |= SMBFLG2_ERR_STATUS; | |
2832 | } | |
2833 | if (ses->capabilities & CAP_DFS) { | |
2834 | pSMB->hdr.Flags2 |= SMBFLG2_DFS; | |
2835 | } | |
2836 | ||
2837 | if (ses->capabilities & CAP_UNICODE) { | |
2838 | pSMB->hdr.Flags2 |= SMBFLG2_UNICODE; | |
2839 | name_len = | |
b1a45695 | 2840 | cifsConvertToUCS((__le16 *) pSMB->RequestFileName, |
737b758c | 2841 | searchName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2842 | name_len++; /* trailing null */ |
2843 | name_len *= 2; | |
2844 | } else { /* BB improve the check for buffer overruns BB */ | |
2845 | name_len = strnlen(searchName, PATH_MAX); | |
2846 | name_len++; /* trailing null */ | |
2847 | strncpy(pSMB->RequestFileName, searchName, name_len); | |
2848 | } | |
2849 | ||
2850 | params = 2 /* level */ + name_len /*includes null */ ; | |
2851 | pSMB->TotalDataCount = 0; | |
2852 | pSMB->DataCount = 0; | |
2853 | pSMB->DataOffset = 0; | |
2854 | pSMB->MaxParameterCount = 0; | |
2855 | pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ | |
2856 | pSMB->MaxSetupCount = 0; | |
2857 | pSMB->Reserved = 0; | |
2858 | pSMB->Flags = 0; | |
2859 | pSMB->Timeout = 0; | |
2860 | pSMB->Reserved2 = 0; | |
2861 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
2862 | struct smb_com_transaction2_get_dfs_refer_req, MaxReferralLevel) - 4); | |
2863 | pSMB->SetupCount = 1; | |
2864 | pSMB->Reserved3 = 0; | |
2865 | pSMB->SubCommand = cpu_to_le16(TRANS2_GET_DFS_REFERRAL); | |
2866 | byte_count = params + 3 /* pad */ ; | |
2867 | pSMB->ParameterCount = cpu_to_le16(params); | |
2868 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
2869 | pSMB->MaxReferralLevel = cpu_to_le16(3); | |
2870 | pSMB->hdr.smb_buf_length += byte_count; | |
2871 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2872 | ||
2873 | rc = SendReceive(xid, ses, (struct smb_hdr *) pSMB, | |
2874 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2875 | if (rc) { | |
2876 | cFYI(1, ("Send error in GetDFSRefer = %d", rc)); | |
2877 | } else { /* decode response */ | |
2878 | /* BB Add logic to parse referrals here */ | |
2879 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
2880 | ||
2881 | if (rc || (pSMBr->ByteCount < 17)) /* BB also check enough total bytes returned */ | |
2882 | rc = -EIO; /* bad smb */ | |
2883 | else { | |
2884 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
2885 | __u16 data_count = le16_to_cpu(pSMBr->t2.DataCount); | |
2886 | ||
2887 | cFYI(1, | |
2888 | ("Decoding GetDFSRefer response. BCC: %d Offset %d", | |
2889 | pSMBr->ByteCount, data_offset)); | |
2890 | referrals = | |
2891 | (struct dfs_referral_level_3 *) | |
2892 | (8 /* sizeof start of data block */ + | |
2893 | data_offset + | |
2894 | (char *) &pSMBr->hdr.Protocol); | |
2895 | 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", | |
2896 | 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))); | |
2897 | /* BB This field is actually two bytes in from start of | |
2898 | data block so we could do safety check that DataBlock | |
2899 | begins at address of pSMBr->NumberOfReferrals */ | |
2900 | *number_of_UNC_in_array = le16_to_cpu(pSMBr->NumberOfReferrals); | |
2901 | ||
2902 | /* BB Fix below so can return more than one referral */ | |
2903 | if(*number_of_UNC_in_array > 1) | |
2904 | *number_of_UNC_in_array = 1; | |
2905 | ||
2906 | /* get the length of the strings describing refs */ | |
2907 | name_len = 0; | |
2908 | for(i=0;i<*number_of_UNC_in_array;i++) { | |
2909 | /* make sure that DfsPathOffset not past end */ | |
2910 | __u16 offset = le16_to_cpu(referrals->DfsPathOffset); | |
2911 | if (offset > data_count) { | |
2912 | /* if invalid referral, stop here and do | |
2913 | not try to copy any more */ | |
2914 | *number_of_UNC_in_array = i; | |
2915 | break; | |
2916 | } | |
2917 | temp = ((char *)referrals) + offset; | |
2918 | ||
2919 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2920 | name_len += UniStrnlen((wchar_t *)temp,data_count); | |
2921 | } else { | |
2922 | name_len += strnlen(temp,data_count); | |
2923 | } | |
2924 | referrals++; | |
2925 | /* BB add check that referral pointer does not fall off end PDU */ | |
2926 | ||
2927 | } | |
2928 | /* BB add check for name_len bigger than bcc */ | |
2929 | *targetUNCs = | |
2930 | kmalloc(name_len+1+ (*number_of_UNC_in_array),GFP_KERNEL); | |
2931 | if(*targetUNCs == NULL) { | |
2932 | rc = -ENOMEM; | |
2933 | goto GetDFSRefExit; | |
2934 | } | |
2935 | /* copy the ref strings */ | |
2936 | referrals = | |
2937 | (struct dfs_referral_level_3 *) | |
2938 | (8 /* sizeof data hdr */ + | |
2939 | data_offset + | |
2940 | (char *) &pSMBr->hdr.Protocol); | |
2941 | ||
2942 | for(i=0;i<*number_of_UNC_in_array;i++) { | |
2943 | temp = ((char *)referrals) + le16_to_cpu(referrals->DfsPathOffset); | |
2944 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2945 | cifs_strfromUCS_le(*targetUNCs, | |
2946 | (wchar_t *) temp, name_len, nls_codepage); | |
2947 | } else { | |
2948 | strncpy(*targetUNCs,temp,name_len); | |
2949 | } | |
2950 | /* BB update target_uncs pointers */ | |
2951 | referrals++; | |
2952 | } | |
2953 | temp = *targetUNCs; | |
2954 | temp[name_len] = 0; | |
2955 | } | |
2956 | ||
2957 | } | |
2958 | GetDFSRefExit: | |
2959 | if (pSMB) | |
2960 | cifs_buf_release(pSMB); | |
2961 | ||
2962 | if (rc == -EAGAIN) | |
2963 | goto getDFSRetry; | |
2964 | ||
2965 | return rc; | |
2966 | } | |
2967 | ||
2968 | int | |
737b758c | 2969 | CIFSSMBQFSInfo(const int xid, struct cifsTconInfo *tcon, struct kstatfs *FSData) |
1da177e4 LT |
2970 | { |
2971 | /* level 0x103 SMB_QUERY_FILE_SYSTEM_INFO */ | |
2972 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
2973 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
2974 | FILE_SYSTEM_INFO *response_data; | |
2975 | int rc = 0; | |
2976 | int bytes_returned = 0; | |
2977 | __u16 params, byte_count; | |
2978 | ||
2979 | cFYI(1, ("In QFSInfo")); | |
2980 | QFSInfoRetry: | |
2981 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2982 | (void **) &pSMBr); | |
2983 | if (rc) | |
2984 | return rc; | |
2985 | ||
2986 | params = 2; /* level */ | |
2987 | pSMB->TotalDataCount = 0; | |
2988 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
2989 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find exact max SMB PDU from sess structure BB */ | |
2990 | pSMB->MaxSetupCount = 0; | |
2991 | pSMB->Reserved = 0; | |
2992 | pSMB->Flags = 0; | |
2993 | pSMB->Timeout = 0; | |
2994 | pSMB->Reserved2 = 0; | |
2995 | byte_count = params + 1 /* pad */ ; | |
2996 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
2997 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2998 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
2999 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
3000 | pSMB->DataCount = 0; | |
3001 | pSMB->DataOffset = 0; | |
3002 | pSMB->SetupCount = 1; | |
3003 | pSMB->Reserved3 = 0; | |
3004 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
3005 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_SIZE_INFO); | |
3006 | pSMB->hdr.smb_buf_length += byte_count; | |
3007 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3008 | ||
3009 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3010 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3011 | if (rc) { | |
3012 | cERROR(1, ("Send error in QFSInfo = %d", rc)); | |
3013 | } else { /* decode response */ | |
3014 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3015 | ||
3016 | if (rc || (pSMBr->ByteCount < 24)) /* BB alsO CHEck enough total bytes returned */ | |
3017 | rc = -EIO; /* bad smb */ | |
3018 | else { | |
3019 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
3020 | cFYI(1, | |
3021 | ("Decoding qfsinfo response. BCC: %d Offset %d", | |
3022 | pSMBr->ByteCount, data_offset)); | |
3023 | ||
3024 | response_data = | |
3025 | (FILE_SYSTEM_INFO | |
3026 | *) (((char *) &pSMBr->hdr.Protocol) + | |
3027 | data_offset); | |
3028 | FSData->f_bsize = | |
3029 | le32_to_cpu(response_data->BytesPerSector) * | |
3030 | le32_to_cpu(response_data-> | |
3031 | SectorsPerAllocationUnit); | |
3032 | FSData->f_blocks = | |
3033 | le64_to_cpu(response_data->TotalAllocationUnits); | |
3034 | FSData->f_bfree = FSData->f_bavail = | |
3035 | le64_to_cpu(response_data->FreeAllocationUnits); | |
3036 | cFYI(1, | |
3037 | ("Blocks: %lld Free: %lld Block size %ld", | |
3038 | (unsigned long long)FSData->f_blocks, | |
3039 | (unsigned long long)FSData->f_bfree, | |
3040 | FSData->f_bsize)); | |
3041 | } | |
3042 | } | |
3043 | cifs_buf_release(pSMB); | |
3044 | ||
3045 | if (rc == -EAGAIN) | |
3046 | goto QFSInfoRetry; | |
3047 | ||
3048 | return rc; | |
3049 | } | |
3050 | ||
3051 | int | |
737b758c | 3052 | CIFSSMBQFSAttributeInfo(const int xid, struct cifsTconInfo *tcon) |
1da177e4 LT |
3053 | { |
3054 | /* level 0x105 SMB_QUERY_FILE_SYSTEM_INFO */ | |
3055 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
3056 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
3057 | FILE_SYSTEM_ATTRIBUTE_INFO *response_data; | |
3058 | int rc = 0; | |
3059 | int bytes_returned = 0; | |
3060 | __u16 params, byte_count; | |
3061 | ||
3062 | cFYI(1, ("In QFSAttributeInfo")); | |
3063 | QFSAttributeRetry: | |
3064 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3065 | (void **) &pSMBr); | |
3066 | if (rc) | |
3067 | return rc; | |
3068 | ||
3069 | params = 2; /* level */ | |
3070 | pSMB->TotalDataCount = 0; | |
3071 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3072 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find exact max SMB PDU from sess structure BB */ | |
3073 | pSMB->MaxSetupCount = 0; | |
3074 | pSMB->Reserved = 0; | |
3075 | pSMB->Flags = 0; | |
3076 | pSMB->Timeout = 0; | |
3077 | pSMB->Reserved2 = 0; | |
3078 | byte_count = params + 1 /* pad */ ; | |
3079 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3080 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3081 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
3082 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
3083 | pSMB->DataCount = 0; | |
3084 | pSMB->DataOffset = 0; | |
3085 | pSMB->SetupCount = 1; | |
3086 | pSMB->Reserved3 = 0; | |
3087 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
3088 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_ATTRIBUTE_INFO); | |
3089 | pSMB->hdr.smb_buf_length += byte_count; | |
3090 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3091 | ||
3092 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3093 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3094 | if (rc) { | |
3095 | cERROR(1, ("Send error in QFSAttributeInfo = %d", rc)); | |
3096 | } else { /* decode response */ | |
3097 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3098 | ||
3099 | if (rc || (pSMBr->ByteCount < 13)) { /* BB also check enough bytes returned */ | |
3100 | rc = -EIO; /* bad smb */ | |
3101 | } else { | |
3102 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
3103 | response_data = | |
3104 | (FILE_SYSTEM_ATTRIBUTE_INFO | |
3105 | *) (((char *) &pSMBr->hdr.Protocol) + | |
3106 | data_offset); | |
3107 | memcpy(&tcon->fsAttrInfo, response_data, | |
3108 | sizeof (FILE_SYSTEM_ATTRIBUTE_INFO)); | |
3109 | } | |
3110 | } | |
3111 | cifs_buf_release(pSMB); | |
3112 | ||
3113 | if (rc == -EAGAIN) | |
3114 | goto QFSAttributeRetry; | |
3115 | ||
3116 | return rc; | |
3117 | } | |
3118 | ||
3119 | int | |
737b758c | 3120 | CIFSSMBQFSDeviceInfo(const int xid, struct cifsTconInfo *tcon) |
1da177e4 LT |
3121 | { |
3122 | /* level 0x104 SMB_QUERY_FILE_SYSTEM_INFO */ | |
3123 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
3124 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
3125 | FILE_SYSTEM_DEVICE_INFO *response_data; | |
3126 | int rc = 0; | |
3127 | int bytes_returned = 0; | |
3128 | __u16 params, byte_count; | |
3129 | ||
3130 | cFYI(1, ("In QFSDeviceInfo")); | |
3131 | QFSDeviceRetry: | |
3132 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3133 | (void **) &pSMBr); | |
3134 | if (rc) | |
3135 | return rc; | |
3136 | ||
3137 | params = 2; /* level */ | |
3138 | pSMB->TotalDataCount = 0; | |
3139 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3140 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find exact max SMB PDU from sess structure BB */ | |
3141 | pSMB->MaxSetupCount = 0; | |
3142 | pSMB->Reserved = 0; | |
3143 | pSMB->Flags = 0; | |
3144 | pSMB->Timeout = 0; | |
3145 | pSMB->Reserved2 = 0; | |
3146 | byte_count = params + 1 /* pad */ ; | |
3147 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3148 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3149 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
3150 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
3151 | ||
3152 | pSMB->DataCount = 0; | |
3153 | pSMB->DataOffset = 0; | |
3154 | pSMB->SetupCount = 1; | |
3155 | pSMB->Reserved3 = 0; | |
3156 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
3157 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_DEVICE_INFO); | |
3158 | pSMB->hdr.smb_buf_length += byte_count; | |
3159 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3160 | ||
3161 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3162 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3163 | if (rc) { | |
3164 | cFYI(1, ("Send error in QFSDeviceInfo = %d", rc)); | |
3165 | } else { /* decode response */ | |
3166 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3167 | ||
3168 | if (rc || (pSMBr->ByteCount < sizeof (FILE_SYSTEM_DEVICE_INFO))) | |
3169 | rc = -EIO; /* bad smb */ | |
3170 | else { | |
3171 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
3172 | response_data = | |
737b758c SF |
3173 | (FILE_SYSTEM_DEVICE_INFO *) |
3174 | (((char *) &pSMBr->hdr.Protocol) + | |
1da177e4 LT |
3175 | data_offset); |
3176 | memcpy(&tcon->fsDevInfo, response_data, | |
3177 | sizeof (FILE_SYSTEM_DEVICE_INFO)); | |
3178 | } | |
3179 | } | |
3180 | cifs_buf_release(pSMB); | |
3181 | ||
3182 | if (rc == -EAGAIN) | |
3183 | goto QFSDeviceRetry; | |
3184 | ||
3185 | return rc; | |
3186 | } | |
3187 | ||
3188 | int | |
737b758c | 3189 | CIFSSMBQFSUnixInfo(const int xid, struct cifsTconInfo *tcon) |
1da177e4 LT |
3190 | { |
3191 | /* level 0x200 SMB_QUERY_CIFS_UNIX_INFO */ | |
3192 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
3193 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
3194 | FILE_SYSTEM_UNIX_INFO *response_data; | |
3195 | int rc = 0; | |
3196 | int bytes_returned = 0; | |
3197 | __u16 params, byte_count; | |
3198 | ||
3199 | cFYI(1, ("In QFSUnixInfo")); | |
3200 | QFSUnixRetry: | |
3201 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3202 | (void **) &pSMBr); | |
3203 | if (rc) | |
3204 | return rc; | |
3205 | ||
3206 | params = 2; /* level */ | |
3207 | pSMB->TotalDataCount = 0; | |
3208 | pSMB->DataCount = 0; | |
3209 | pSMB->DataOffset = 0; | |
3210 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3211 | pSMB->MaxDataCount = cpu_to_le16(100); /* BB find exact max SMB PDU from sess structure BB */ | |
3212 | pSMB->MaxSetupCount = 0; | |
3213 | pSMB->Reserved = 0; | |
3214 | pSMB->Flags = 0; | |
3215 | pSMB->Timeout = 0; | |
3216 | pSMB->Reserved2 = 0; | |
3217 | byte_count = params + 1 /* pad */ ; | |
3218 | pSMB->ParameterCount = cpu_to_le16(params); | |
3219 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
3220 | pSMB->ParameterOffset = cpu_to_le16(offsetof(struct | |
3221 | smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
3222 | pSMB->SetupCount = 1; | |
3223 | pSMB->Reserved3 = 0; | |
3224 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
3225 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_CIFS_UNIX_INFO); | |
3226 | pSMB->hdr.smb_buf_length += byte_count; | |
3227 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3228 | ||
3229 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3230 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3231 | if (rc) { | |
3232 | cERROR(1, ("Send error in QFSUnixInfo = %d", rc)); | |
3233 | } else { /* decode response */ | |
3234 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3235 | ||
3236 | if (rc || (pSMBr->ByteCount < 13)) { | |
3237 | rc = -EIO; /* bad smb */ | |
3238 | } else { | |
3239 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
3240 | response_data = | |
3241 | (FILE_SYSTEM_UNIX_INFO | |
3242 | *) (((char *) &pSMBr->hdr.Protocol) + | |
3243 | data_offset); | |
3244 | memcpy(&tcon->fsUnixInfo, response_data, | |
3245 | sizeof (FILE_SYSTEM_UNIX_INFO)); | |
3246 | } | |
3247 | } | |
3248 | cifs_buf_release(pSMB); | |
3249 | ||
3250 | if (rc == -EAGAIN) | |
3251 | goto QFSUnixRetry; | |
3252 | ||
3253 | ||
3254 | return rc; | |
3255 | } | |
3256 | ||
3257 | ||
3258 | int | |
3259 | CIFSSMBQFSPosixInfo(const int xid, struct cifsTconInfo *tcon, | |
737b758c | 3260 | struct kstatfs *FSData) |
1da177e4 LT |
3261 | { |
3262 | /* level 0x201 SMB_QUERY_CIFS_POSIX_INFO */ | |
3263 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
3264 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
3265 | FILE_SYSTEM_POSIX_INFO *response_data; | |
3266 | int rc = 0; | |
3267 | int bytes_returned = 0; | |
3268 | __u16 params, byte_count; | |
3269 | ||
3270 | cFYI(1, ("In QFSPosixInfo")); | |
3271 | QFSPosixRetry: | |
3272 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3273 | (void **) &pSMBr); | |
3274 | if (rc) | |
3275 | return rc; | |
3276 | ||
3277 | params = 2; /* level */ | |
3278 | pSMB->TotalDataCount = 0; | |
3279 | pSMB->DataCount = 0; | |
3280 | pSMB->DataOffset = 0; | |
3281 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3282 | pSMB->MaxDataCount = cpu_to_le16(100); /* BB find exact max SMB PDU from sess structure BB */ | |
3283 | pSMB->MaxSetupCount = 0; | |
3284 | pSMB->Reserved = 0; | |
3285 | pSMB->Flags = 0; | |
3286 | pSMB->Timeout = 0; | |
3287 | pSMB->Reserved2 = 0; | |
3288 | byte_count = params + 1 /* pad */ ; | |
3289 | pSMB->ParameterCount = cpu_to_le16(params); | |
3290 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
3291 | pSMB->ParameterOffset = cpu_to_le16(offsetof(struct | |
3292 | smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
3293 | pSMB->SetupCount = 1; | |
3294 | pSMB->Reserved3 = 0; | |
3295 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
3296 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_POSIX_FS_INFO); | |
3297 | pSMB->hdr.smb_buf_length += byte_count; | |
3298 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3299 | ||
3300 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3301 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3302 | if (rc) { | |
3303 | cFYI(1, ("Send error in QFSUnixInfo = %d", rc)); | |
3304 | } else { /* decode response */ | |
3305 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3306 | ||
3307 | if (rc || (pSMBr->ByteCount < 13)) { | |
3308 | rc = -EIO; /* bad smb */ | |
3309 | } else { | |
3310 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
3311 | response_data = | |
3312 | (FILE_SYSTEM_POSIX_INFO | |
3313 | *) (((char *) &pSMBr->hdr.Protocol) + | |
3314 | data_offset); | |
3315 | FSData->f_bsize = | |
3316 | le32_to_cpu(response_data->BlockSize); | |
3317 | FSData->f_blocks = | |
3318 | le64_to_cpu(response_data->TotalBlocks); | |
3319 | FSData->f_bfree = | |
3320 | le64_to_cpu(response_data->BlocksAvail); | |
3321 | if(response_data->UserBlocksAvail == -1) { | |
3322 | FSData->f_bavail = FSData->f_bfree; | |
3323 | } else { | |
3324 | FSData->f_bavail = | |
3325 | le64_to_cpu(response_data->UserBlocksAvail); | |
3326 | } | |
3327 | if(response_data->TotalFileNodes != -1) | |
3328 | FSData->f_files = | |
3329 | le64_to_cpu(response_data->TotalFileNodes); | |
3330 | if(response_data->FreeFileNodes != -1) | |
3331 | FSData->f_ffree = | |
3332 | le64_to_cpu(response_data->FreeFileNodes); | |
3333 | } | |
3334 | } | |
3335 | cifs_buf_release(pSMB); | |
3336 | ||
3337 | if (rc == -EAGAIN) | |
3338 | goto QFSPosixRetry; | |
3339 | ||
3340 | return rc; | |
3341 | } | |
3342 | ||
3343 | ||
3344 | /* We can not use write of zero bytes trick to | |
3345 | set file size due to need for large file support. Also note that | |
3346 | this SetPathInfo is preferred to SetFileInfo based method in next | |
3347 | routine which is only needed to work around a sharing violation bug | |
3348 | in Samba which this routine can run into */ | |
3349 | ||
3350 | int | |
3351 | CIFSSMBSetEOF(const int xid, struct cifsTconInfo *tcon, const char *fileName, | |
737b758c SF |
3352 | __u64 size, int SetAllocation, |
3353 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
3354 | { |
3355 | struct smb_com_transaction2_spi_req *pSMB = NULL; | |
3356 | struct smb_com_transaction2_spi_rsp *pSMBr = NULL; | |
3357 | struct file_end_of_file_info *parm_data; | |
3358 | int name_len; | |
3359 | int rc = 0; | |
3360 | int bytes_returned = 0; | |
3361 | __u16 params, byte_count, data_count, param_offset, offset; | |
3362 | ||
3363 | cFYI(1, ("In SetEOF")); | |
3364 | SetEOFRetry: | |
3365 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3366 | (void **) &pSMBr); | |
3367 | if (rc) | |
3368 | return rc; | |
3369 | ||
3370 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3371 | name_len = | |
b1a45695 | 3372 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 3373 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
3374 | name_len++; /* trailing null */ |
3375 | name_len *= 2; | |
3376 | } else { /* BB improve the check for buffer overruns BB */ | |
3377 | name_len = strnlen(fileName, PATH_MAX); | |
3378 | name_len++; /* trailing null */ | |
3379 | strncpy(pSMB->FileName, fileName, name_len); | |
3380 | } | |
3381 | params = 6 + name_len; | |
3382 | data_count = sizeof (struct file_end_of_file_info); | |
3383 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3384 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB size from sess */ | |
3385 | pSMB->MaxSetupCount = 0; | |
3386 | pSMB->Reserved = 0; | |
3387 | pSMB->Flags = 0; | |
3388 | pSMB->Timeout = 0; | |
3389 | pSMB->Reserved2 = 0; | |
3390 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
3391 | InformationLevel) - 4; | |
3392 | offset = param_offset + params; | |
3393 | if(SetAllocation) { | |
3394 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) | |
3395 | pSMB->InformationLevel = | |
3396 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO2); | |
3397 | else | |
3398 | pSMB->InformationLevel = | |
3399 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO); | |
3400 | } else /* Set File Size */ { | |
3401 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) | |
3402 | pSMB->InformationLevel = | |
3403 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO2); | |
3404 | else | |
3405 | pSMB->InformationLevel = | |
3406 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO); | |
3407 | } | |
3408 | ||
3409 | parm_data = | |
3410 | (struct file_end_of_file_info *) (((char *) &pSMB->hdr.Protocol) + | |
3411 | offset); | |
3412 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
3413 | pSMB->DataOffset = cpu_to_le16(offset); | |
3414 | pSMB->SetupCount = 1; | |
3415 | pSMB->Reserved3 = 0; | |
3416 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
3417 | byte_count = 3 /* pad */ + params + data_count; | |
3418 | pSMB->DataCount = cpu_to_le16(data_count); | |
3419 | pSMB->TotalDataCount = pSMB->DataCount; | |
3420 | pSMB->ParameterCount = cpu_to_le16(params); | |
3421 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
3422 | pSMB->Reserved4 = 0; | |
3423 | pSMB->hdr.smb_buf_length += byte_count; | |
3424 | parm_data->FileSize = cpu_to_le64(size); | |
3425 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3426 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3427 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3428 | if (rc) { | |
3429 | cFYI(1, ("SetPathInfo (file size) returned %d", rc)); | |
3430 | } | |
3431 | ||
3432 | cifs_buf_release(pSMB); | |
3433 | ||
3434 | if (rc == -EAGAIN) | |
3435 | goto SetEOFRetry; | |
3436 | ||
3437 | return rc; | |
3438 | } | |
3439 | ||
3440 | int | |
3441 | CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon, __u64 size, | |
3442 | __u16 fid, __u32 pid_of_opener, int SetAllocation) | |
3443 | { | |
3444 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
3445 | struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; | |
3446 | char *data_offset; | |
3447 | struct file_end_of_file_info *parm_data; | |
3448 | int rc = 0; | |
3449 | int bytes_returned = 0; | |
3450 | __u16 params, param_offset, offset, byte_count, count; | |
3451 | ||
3452 | cFYI(1, ("SetFileSize (via SetFileInfo) %lld", | |
3453 | (long long)size)); | |
cd63499c SF |
3454 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
3455 | ||
1da177e4 LT |
3456 | if (rc) |
3457 | return rc; | |
3458 | ||
cd63499c SF |
3459 | pSMBr = (struct smb_com_transaction2_sfi_rsp *)pSMB; |
3460 | ||
1da177e4 LT |
3461 | pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener); |
3462 | pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16)); | |
3463 | ||
3464 | params = 6; | |
3465 | pSMB->MaxSetupCount = 0; | |
3466 | pSMB->Reserved = 0; | |
3467 | pSMB->Flags = 0; | |
3468 | pSMB->Timeout = 0; | |
3469 | pSMB->Reserved2 = 0; | |
3470 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
3471 | offset = param_offset + params; | |
3472 | ||
3473 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
3474 | ||
3475 | count = sizeof(struct file_end_of_file_info); | |
3476 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3477 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB PDU from sess */ | |
3478 | pSMB->SetupCount = 1; | |
3479 | pSMB->Reserved3 = 0; | |
3480 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
3481 | byte_count = 3 /* pad */ + params + count; | |
3482 | pSMB->DataCount = cpu_to_le16(count); | |
3483 | pSMB->ParameterCount = cpu_to_le16(params); | |
3484 | pSMB->TotalDataCount = pSMB->DataCount; | |
3485 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
3486 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
3487 | parm_data = | |
3488 | (struct file_end_of_file_info *) (((char *) &pSMB->hdr.Protocol) + | |
3489 | offset); | |
3490 | pSMB->DataOffset = cpu_to_le16(offset); | |
3491 | parm_data->FileSize = cpu_to_le64(size); | |
3492 | pSMB->Fid = fid; | |
3493 | if(SetAllocation) { | |
3494 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) | |
3495 | pSMB->InformationLevel = | |
3496 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO2); | |
3497 | else | |
3498 | pSMB->InformationLevel = | |
3499 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO); | |
3500 | } else /* Set File Size */ { | |
3501 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) | |
3502 | pSMB->InformationLevel = | |
3503 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO2); | |
3504 | else | |
3505 | pSMB->InformationLevel = | |
3506 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO); | |
3507 | } | |
3508 | pSMB->Reserved4 = 0; | |
3509 | pSMB->hdr.smb_buf_length += byte_count; | |
3510 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3511 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3512 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3513 | if (rc) { | |
3514 | cFYI(1, | |
3515 | ("Send error in SetFileInfo (SetFileSize) = %d", | |
3516 | rc)); | |
3517 | } | |
3518 | ||
3519 | if (pSMB) | |
cd63499c | 3520 | cifs_small_buf_release(pSMB); |
1da177e4 LT |
3521 | |
3522 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
3523 | since file handle passed in no longer valid */ | |
3524 | ||
3525 | return rc; | |
3526 | } | |
3527 | ||
3528 | /* Some legacy servers such as NT4 require that the file times be set on | |
3529 | an open handle, rather than by pathname - this is awkward due to | |
3530 | potential access conflicts on the open, but it is unavoidable for these | |
3531 | old servers since the only other choice is to go from 100 nanosecond DCE | |
3532 | time and resort to the original setpathinfo level which takes the ancient | |
3533 | DOS time format with 2 second granularity */ | |
3534 | int | |
3535 | CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon, const FILE_BASIC_INFO * data, | |
3536 | __u16 fid) | |
3537 | { | |
3538 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
3539 | struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; | |
3540 | char *data_offset; | |
3541 | int rc = 0; | |
3542 | int bytes_returned = 0; | |
3543 | __u16 params, param_offset, offset, byte_count, count; | |
3544 | ||
3545 | cFYI(1, ("Set Times (via SetFileInfo)")); | |
cd63499c SF |
3546 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
3547 | ||
1da177e4 LT |
3548 | if (rc) |
3549 | return rc; | |
3550 | ||
cd63499c SF |
3551 | pSMBr = (struct smb_com_transaction2_sfi_rsp *)pSMB; |
3552 | ||
1da177e4 LT |
3553 | /* At this point there is no need to override the current pid |
3554 | with the pid of the opener, but that could change if we someday | |
3555 | use an existing handle (rather than opening one on the fly) */ | |
3556 | /* pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener); | |
3557 | pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16));*/ | |
3558 | ||
3559 | params = 6; | |
3560 | pSMB->MaxSetupCount = 0; | |
3561 | pSMB->Reserved = 0; | |
3562 | pSMB->Flags = 0; | |
3563 | pSMB->Timeout = 0; | |
3564 | pSMB->Reserved2 = 0; | |
3565 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
3566 | offset = param_offset + params; | |
3567 | ||
3568 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
3569 | ||
3570 | count = sizeof (FILE_BASIC_INFO); | |
3571 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3572 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB PDU from sess */ | |
3573 | pSMB->SetupCount = 1; | |
3574 | pSMB->Reserved3 = 0; | |
3575 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
3576 | byte_count = 3 /* pad */ + params + count; | |
3577 | pSMB->DataCount = cpu_to_le16(count); | |
3578 | pSMB->ParameterCount = cpu_to_le16(params); | |
3579 | pSMB->TotalDataCount = pSMB->DataCount; | |
3580 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
3581 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
3582 | pSMB->DataOffset = cpu_to_le16(offset); | |
3583 | pSMB->Fid = fid; | |
3584 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) | |
3585 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO2); | |
3586 | else | |
3587 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO); | |
3588 | pSMB->Reserved4 = 0; | |
3589 | pSMB->hdr.smb_buf_length += byte_count; | |
3590 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3591 | memcpy(data_offset,data,sizeof(FILE_BASIC_INFO)); | |
3592 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3593 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3594 | if (rc) { | |
3595 | cFYI(1,("Send error in Set Time (SetFileInfo) = %d",rc)); | |
3596 | } | |
3597 | ||
cd63499c | 3598 | cifs_small_buf_release(pSMB); |
1da177e4 LT |
3599 | |
3600 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
3601 | since file handle passed in no longer valid */ | |
3602 | ||
3603 | return rc; | |
3604 | } | |
3605 | ||
3606 | ||
3607 | int | |
3608 | CIFSSMBSetTimes(const int xid, struct cifsTconInfo *tcon, const char *fileName, | |
3609 | const FILE_BASIC_INFO * data, | |
737b758c | 3610 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
3611 | { |
3612 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
3613 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
3614 | int name_len; | |
3615 | int rc = 0; | |
3616 | int bytes_returned = 0; | |
3617 | char *data_offset; | |
3618 | __u16 params, param_offset, offset, byte_count, count; | |
3619 | ||
3620 | cFYI(1, ("In SetTimes")); | |
3621 | ||
3622 | SetTimesRetry: | |
3623 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3624 | (void **) &pSMBr); | |
3625 | if (rc) | |
3626 | return rc; | |
3627 | ||
3628 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3629 | name_len = | |
b1a45695 | 3630 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 3631 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
3632 | name_len++; /* trailing null */ |
3633 | name_len *= 2; | |
3634 | } else { /* BB improve the check for buffer overruns BB */ | |
3635 | name_len = strnlen(fileName, PATH_MAX); | |
3636 | name_len++; /* trailing null */ | |
3637 | strncpy(pSMB->FileName, fileName, name_len); | |
3638 | } | |
3639 | ||
3640 | params = 6 + name_len; | |
3641 | count = sizeof (FILE_BASIC_INFO); | |
3642 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3643 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find exact max SMB PDU from sess structure BB */ | |
3644 | pSMB->MaxSetupCount = 0; | |
3645 | pSMB->Reserved = 0; | |
3646 | pSMB->Flags = 0; | |
3647 | pSMB->Timeout = 0; | |
3648 | pSMB->Reserved2 = 0; | |
3649 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
3650 | InformationLevel) - 4; | |
3651 | offset = param_offset + params; | |
3652 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
3653 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
3654 | pSMB->DataOffset = cpu_to_le16(offset); | |
3655 | pSMB->SetupCount = 1; | |
3656 | pSMB->Reserved3 = 0; | |
3657 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
3658 | byte_count = 3 /* pad */ + params + count; | |
3659 | ||
3660 | pSMB->DataCount = cpu_to_le16(count); | |
3661 | pSMB->ParameterCount = cpu_to_le16(params); | |
3662 | pSMB->TotalDataCount = pSMB->DataCount; | |
3663 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
3664 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) | |
3665 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO2); | |
3666 | else | |
3667 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO); | |
3668 | pSMB->Reserved4 = 0; | |
3669 | pSMB->hdr.smb_buf_length += byte_count; | |
3670 | memcpy(data_offset, data, sizeof (FILE_BASIC_INFO)); | |
3671 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3672 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3673 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3674 | if (rc) { | |
3675 | cFYI(1, ("SetPathInfo (times) returned %d", rc)); | |
3676 | } | |
3677 | ||
3678 | cifs_buf_release(pSMB); | |
3679 | ||
3680 | if (rc == -EAGAIN) | |
3681 | goto SetTimesRetry; | |
3682 | ||
3683 | return rc; | |
3684 | } | |
3685 | ||
3686 | /* Can not be used to set time stamps yet (due to old DOS time format) */ | |
3687 | /* Can be used to set attributes */ | |
3688 | #if 0 /* Possibly not needed - since it turns out that strangely NT4 has a bug | |
3689 | handling it anyway and NT4 was what we thought it would be needed for | |
3690 | Do not delete it until we prove whether needed for Win9x though */ | |
3691 | int | |
3692 | CIFSSMBSetAttrLegacy(int xid, struct cifsTconInfo *tcon, char *fileName, | |
3693 | __u16 dos_attrs, const struct nls_table *nls_codepage) | |
3694 | { | |
3695 | SETATTR_REQ *pSMB = NULL; | |
3696 | SETATTR_RSP *pSMBr = NULL; | |
3697 | int rc = 0; | |
3698 | int bytes_returned; | |
3699 | int name_len; | |
3700 | ||
3701 | cFYI(1, ("In SetAttrLegacy")); | |
3702 | ||
3703 | SetAttrLgcyRetry: | |
3704 | rc = smb_init(SMB_COM_SETATTR, 8, tcon, (void **) &pSMB, | |
3705 | (void **) &pSMBr); | |
3706 | if (rc) | |
3707 | return rc; | |
3708 | ||
3709 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3710 | name_len = | |
b1a45695 | 3711 | ConvertToUCS((__le16 *) pSMB->fileName, fileName, |
1da177e4 LT |
3712 | PATH_MAX, nls_codepage); |
3713 | name_len++; /* trailing null */ | |
3714 | name_len *= 2; | |
3715 | } else { /* BB improve the check for buffer overruns BB */ | |
3716 | name_len = strnlen(fileName, PATH_MAX); | |
3717 | name_len++; /* trailing null */ | |
3718 | strncpy(pSMB->fileName, fileName, name_len); | |
3719 | } | |
3720 | pSMB->attr = cpu_to_le16(dos_attrs); | |
3721 | pSMB->BufferFormat = 0x04; | |
3722 | pSMB->hdr.smb_buf_length += name_len + 1; | |
3723 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
3724 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3725 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3726 | if (rc) { | |
3727 | cFYI(1, ("Error in LegacySetAttr = %d", rc)); | |
3728 | } | |
3729 | ||
3730 | cifs_buf_release(pSMB); | |
3731 | ||
3732 | if (rc == -EAGAIN) | |
3733 | goto SetAttrLgcyRetry; | |
3734 | ||
3735 | return rc; | |
3736 | } | |
3737 | #endif /* temporarily unneeded SetAttr legacy function */ | |
3738 | ||
3739 | int | |
3740 | CIFSSMBUnixSetPerms(const int xid, struct cifsTconInfo *tcon, | |
737b758c SF |
3741 | char *fileName, __u64 mode, __u64 uid, __u64 gid, |
3742 | dev_t device, const struct nls_table *nls_codepage, | |
3743 | int remap) | |
1da177e4 LT |
3744 | { |
3745 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
3746 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
3747 | int name_len; | |
3748 | int rc = 0; | |
3749 | int bytes_returned = 0; | |
3750 | FILE_UNIX_BASIC_INFO *data_offset; | |
3751 | __u16 params, param_offset, offset, count, byte_count; | |
3752 | ||
3753 | cFYI(1, ("In SetUID/GID/Mode")); | |
3754 | setPermsRetry: | |
3755 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3756 | (void **) &pSMBr); | |
3757 | if (rc) | |
3758 | return rc; | |
3759 | ||
3760 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3761 | name_len = | |
b1a45695 | 3762 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 3763 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
3764 | name_len++; /* trailing null */ |
3765 | name_len *= 2; | |
3766 | } else { /* BB improve the check for buffer overruns BB */ | |
3767 | name_len = strnlen(fileName, PATH_MAX); | |
3768 | name_len++; /* trailing null */ | |
3769 | strncpy(pSMB->FileName, fileName, name_len); | |
3770 | } | |
3771 | ||
3772 | params = 6 + name_len; | |
3773 | count = sizeof (FILE_UNIX_BASIC_INFO); | |
3774 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3775 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find exact max SMB PDU from sess structure BB */ | |
3776 | pSMB->MaxSetupCount = 0; | |
3777 | pSMB->Reserved = 0; | |
3778 | pSMB->Flags = 0; | |
3779 | pSMB->Timeout = 0; | |
3780 | pSMB->Reserved2 = 0; | |
3781 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
3782 | InformationLevel) - 4; | |
3783 | offset = param_offset + params; | |
3784 | data_offset = | |
3785 | (FILE_UNIX_BASIC_INFO *) ((char *) &pSMB->hdr.Protocol + | |
3786 | offset); | |
3787 | memset(data_offset, 0, count); | |
3788 | pSMB->DataOffset = cpu_to_le16(offset); | |
3789 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
3790 | pSMB->SetupCount = 1; | |
3791 | pSMB->Reserved3 = 0; | |
3792 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
3793 | byte_count = 3 /* pad */ + params + count; | |
3794 | pSMB->ParameterCount = cpu_to_le16(params); | |
3795 | pSMB->DataCount = cpu_to_le16(count); | |
3796 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
3797 | pSMB->TotalDataCount = pSMB->DataCount; | |
3798 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_BASIC); | |
3799 | pSMB->Reserved4 = 0; | |
3800 | pSMB->hdr.smb_buf_length += byte_count; | |
3801 | data_offset->Uid = cpu_to_le64(uid); | |
3802 | data_offset->Gid = cpu_to_le64(gid); | |
3803 | /* better to leave device as zero when it is */ | |
3804 | data_offset->DevMajor = cpu_to_le64(MAJOR(device)); | |
3805 | data_offset->DevMinor = cpu_to_le64(MINOR(device)); | |
3806 | data_offset->Permissions = cpu_to_le64(mode); | |
3807 | ||
3808 | if(S_ISREG(mode)) | |
3809 | data_offset->Type = cpu_to_le32(UNIX_FILE); | |
3810 | else if(S_ISDIR(mode)) | |
3811 | data_offset->Type = cpu_to_le32(UNIX_DIR); | |
3812 | else if(S_ISLNK(mode)) | |
3813 | data_offset->Type = cpu_to_le32(UNIX_SYMLINK); | |
3814 | else if(S_ISCHR(mode)) | |
3815 | data_offset->Type = cpu_to_le32(UNIX_CHARDEV); | |
3816 | else if(S_ISBLK(mode)) | |
3817 | data_offset->Type = cpu_to_le32(UNIX_BLOCKDEV); | |
3818 | else if(S_ISFIFO(mode)) | |
3819 | data_offset->Type = cpu_to_le32(UNIX_FIFO); | |
3820 | else if(S_ISSOCK(mode)) | |
3821 | data_offset->Type = cpu_to_le32(UNIX_SOCKET); | |
3822 | ||
3823 | ||
3824 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3825 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3826 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3827 | if (rc) { | |
3828 | cFYI(1, ("SetPathInfo (perms) returned %d", rc)); | |
3829 | } | |
3830 | ||
3831 | if (pSMB) | |
3832 | cifs_buf_release(pSMB); | |
3833 | if (rc == -EAGAIN) | |
3834 | goto setPermsRetry; | |
3835 | return rc; | |
3836 | } | |
3837 | ||
3838 | int CIFSSMBNotify(const int xid, struct cifsTconInfo *tcon, | |
3839 | const int notify_subdirs, const __u16 netfid, | |
3840 | __u32 filter, const struct nls_table *nls_codepage) | |
3841 | { | |
3842 | int rc = 0; | |
3843 | struct smb_com_transaction_change_notify_req * pSMB = NULL; | |
3844 | struct smb_com_transaction_change_notify_rsp * pSMBr = NULL; | |
3845 | int bytes_returned; | |
3846 | ||
3847 | cFYI(1, ("In CIFSSMBNotify for file handle %d",(int)netfid)); | |
3848 | rc = smb_init(SMB_COM_NT_TRANSACT, 23, tcon, (void **) &pSMB, | |
3849 | (void **) &pSMBr); | |
3850 | if (rc) | |
3851 | return rc; | |
3852 | ||
3853 | pSMB->TotalParameterCount = 0 ; | |
3854 | pSMB->TotalDataCount = 0; | |
3855 | pSMB->MaxParameterCount = cpu_to_le32(2); | |
3856 | /* BB find exact data count max from sess structure BB */ | |
3857 | pSMB->MaxDataCount = 0; /* same in little endian or be */ | |
3858 | pSMB->MaxSetupCount = 4; | |
3859 | pSMB->Reserved = 0; | |
3860 | pSMB->ParameterOffset = 0; | |
3861 | pSMB->DataCount = 0; | |
3862 | pSMB->DataOffset = 0; | |
3863 | pSMB->SetupCount = 4; /* single byte does not need le conversion */ | |
3864 | pSMB->SubCommand = cpu_to_le16(NT_TRANSACT_NOTIFY_CHANGE); | |
3865 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3866 | if(notify_subdirs) | |
3867 | pSMB->WatchTree = 1; /* one byte - no le conversion needed */ | |
3868 | pSMB->Reserved2 = 0; | |
3869 | pSMB->CompletionFilter = cpu_to_le32(filter); | |
3870 | pSMB->Fid = netfid; /* file handle always le */ | |
3871 | pSMB->ByteCount = 0; | |
3872 | ||
3873 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3874 | (struct smb_hdr *) pSMBr, &bytes_returned, -1); | |
3875 | if (rc) { | |
3876 | cFYI(1, ("Error in Notify = %d", rc)); | |
3877 | } | |
3878 | cifs_buf_release(pSMB); | |
3879 | return rc; | |
3880 | } | |
3881 | #ifdef CONFIG_CIFS_XATTR | |
3882 | ssize_t | |
3883 | CIFSSMBQAllEAs(const int xid, struct cifsTconInfo *tcon, | |
3884 | const unsigned char *searchName, | |
3885 | char * EAData, size_t buf_size, | |
737b758c | 3886 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
3887 | { |
3888 | /* BB assumes one setup word */ | |
3889 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
3890 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
3891 | int rc = 0; | |
3892 | int bytes_returned; | |
3893 | int name_len; | |
3894 | struct fea * temp_fea; | |
3895 | char * temp_ptr; | |
3896 | __u16 params, byte_count; | |
3897 | ||
3898 | cFYI(1, ("In Query All EAs path %s", searchName)); | |
3899 | QAllEAsRetry: | |
3900 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3901 | (void **) &pSMBr); | |
3902 | if (rc) | |
3903 | return rc; | |
3904 | ||
3905 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3906 | name_len = | |
b1a45695 | 3907 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 3908 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
3909 | name_len++; /* trailing null */ |
3910 | name_len *= 2; | |
3911 | } else { /* BB improve the check for buffer overruns BB */ | |
3912 | name_len = strnlen(searchName, PATH_MAX); | |
3913 | name_len++; /* trailing null */ | |
3914 | strncpy(pSMB->FileName, searchName, name_len); | |
3915 | } | |
3916 | ||
3917 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */ ; | |
3918 | pSMB->TotalDataCount = 0; | |
3919 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3920 | pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ | |
3921 | pSMB->MaxSetupCount = 0; | |
3922 | pSMB->Reserved = 0; | |
3923 | pSMB->Flags = 0; | |
3924 | pSMB->Timeout = 0; | |
3925 | pSMB->Reserved2 = 0; | |
3926 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
3927 | struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); | |
3928 | pSMB->DataCount = 0; | |
3929 | pSMB->DataOffset = 0; | |
3930 | pSMB->SetupCount = 1; | |
3931 | pSMB->Reserved3 = 0; | |
3932 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
3933 | byte_count = params + 1 /* pad */ ; | |
3934 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3935 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3936 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_QUERY_ALL_EAS); | |
3937 | pSMB->Reserved4 = 0; | |
3938 | pSMB->hdr.smb_buf_length += byte_count; | |
3939 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3940 | ||
3941 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3942 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3943 | if (rc) { | |
3944 | cFYI(1, ("Send error in QueryAllEAs = %d", rc)); | |
3945 | } else { /* decode response */ | |
3946 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3947 | ||
3948 | /* BB also check enough total bytes returned */ | |
3949 | /* BB we need to improve the validity checking | |
3950 | of these trans2 responses */ | |
3951 | if (rc || (pSMBr->ByteCount < 4)) | |
3952 | rc = -EIO; /* bad smb */ | |
3953 | /* else if (pFindData){ | |
3954 | memcpy((char *) pFindData, | |
3955 | (char *) &pSMBr->hdr.Protocol + | |
3956 | data_offset, kl); | |
3957 | }*/ else { | |
3958 | /* check that length of list is not more than bcc */ | |
3959 | /* check that each entry does not go beyond length | |
3960 | of list */ | |
3961 | /* check that each element of each entry does not | |
3962 | go beyond end of list */ | |
3963 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
3964 | struct fealist * ea_response_data; | |
3965 | rc = 0; | |
3966 | /* validate_trans2_offsets() */ | |
3967 | /* BB to check if(start of smb + data_offset > &bcc+ bcc)*/ | |
3968 | ea_response_data = (struct fealist *) | |
3969 | (((char *) &pSMBr->hdr.Protocol) + | |
3970 | data_offset); | |
3971 | name_len = le32_to_cpu(ea_response_data->list_len); | |
3972 | cFYI(1,("ea length %d", name_len)); | |
3973 | if(name_len <= 8) { | |
3974 | /* returned EA size zeroed at top of function */ | |
3975 | cFYI(1,("empty EA list returned from server")); | |
3976 | } else { | |
3977 | /* account for ea list len */ | |
3978 | name_len -= 4; | |
3979 | temp_fea = ea_response_data->list; | |
3980 | temp_ptr = (char *)temp_fea; | |
3981 | while(name_len > 0) { | |
3982 | __u16 value_len; | |
3983 | name_len -= 4; | |
3984 | temp_ptr += 4; | |
3985 | rc += temp_fea->name_len; | |
3986 | /* account for prefix user. and trailing null */ | |
3987 | rc = rc + 5 + 1; | |
3988 | if(rc<(int)buf_size) { | |
3989 | memcpy(EAData,"user.",5); | |
3990 | EAData+=5; | |
3991 | memcpy(EAData,temp_ptr,temp_fea->name_len); | |
3992 | EAData+=temp_fea->name_len; | |
3993 | /* null terminate name */ | |
3994 | *EAData = 0; | |
3995 | EAData = EAData + 1; | |
3996 | } else if(buf_size == 0) { | |
3997 | /* skip copy - calc size only */ | |
3998 | } else { | |
3999 | /* stop before overrun buffer */ | |
4000 | rc = -ERANGE; | |
4001 | break; | |
4002 | } | |
4003 | name_len -= temp_fea->name_len; | |
4004 | temp_ptr += temp_fea->name_len; | |
4005 | /* account for trailing null */ | |
4006 | name_len--; | |
4007 | temp_ptr++; | |
4008 | value_len = le16_to_cpu(temp_fea->value_len); | |
4009 | name_len -= value_len; | |
4010 | temp_ptr += value_len; | |
4011 | /* BB check that temp_ptr is still within smb BB*/ | |
4012 | /* no trailing null to account for in value len */ | |
4013 | /* go on to next EA */ | |
4014 | temp_fea = (struct fea *)temp_ptr; | |
4015 | } | |
4016 | } | |
4017 | } | |
4018 | } | |
4019 | if (pSMB) | |
4020 | cifs_buf_release(pSMB); | |
4021 | if (rc == -EAGAIN) | |
4022 | goto QAllEAsRetry; | |
4023 | ||
4024 | return (ssize_t)rc; | |
4025 | } | |
4026 | ||
4027 | ssize_t CIFSSMBQueryEA(const int xid,struct cifsTconInfo * tcon, | |
4028 | const unsigned char * searchName,const unsigned char * ea_name, | |
4029 | unsigned char * ea_value, size_t buf_size, | |
737b758c | 4030 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
4031 | { |
4032 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
4033 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
4034 | int rc = 0; | |
4035 | int bytes_returned; | |
4036 | int name_len; | |
4037 | struct fea * temp_fea; | |
4038 | char * temp_ptr; | |
4039 | __u16 params, byte_count; | |
4040 | ||
4041 | cFYI(1, ("In Query EA path %s", searchName)); | |
4042 | QEARetry: | |
4043 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4044 | (void **) &pSMBr); | |
4045 | if (rc) | |
4046 | return rc; | |
4047 | ||
4048 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
4049 | name_len = | |
b1a45695 | 4050 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 4051 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
4052 | name_len++; /* trailing null */ |
4053 | name_len *= 2; | |
4054 | } else { /* BB improve the check for buffer overruns BB */ | |
4055 | name_len = strnlen(searchName, PATH_MAX); | |
4056 | name_len++; /* trailing null */ | |
4057 | strncpy(pSMB->FileName, searchName, name_len); | |
4058 | } | |
4059 | ||
4060 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */ ; | |
4061 | pSMB->TotalDataCount = 0; | |
4062 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4063 | pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ | |
4064 | pSMB->MaxSetupCount = 0; | |
4065 | pSMB->Reserved = 0; | |
4066 | pSMB->Flags = 0; | |
4067 | pSMB->Timeout = 0; | |
4068 | pSMB->Reserved2 = 0; | |
4069 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
4070 | struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); | |
4071 | pSMB->DataCount = 0; | |
4072 | pSMB->DataOffset = 0; | |
4073 | pSMB->SetupCount = 1; | |
4074 | pSMB->Reserved3 = 0; | |
4075 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
4076 | byte_count = params + 1 /* pad */ ; | |
4077 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
4078 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
4079 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_QUERY_ALL_EAS); | |
4080 | pSMB->Reserved4 = 0; | |
4081 | pSMB->hdr.smb_buf_length += byte_count; | |
4082 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4083 | ||
4084 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4085 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4086 | if (rc) { | |
4087 | cFYI(1, ("Send error in Query EA = %d", rc)); | |
4088 | } else { /* decode response */ | |
4089 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4090 | ||
4091 | /* BB also check enough total bytes returned */ | |
4092 | /* BB we need to improve the validity checking | |
4093 | of these trans2 responses */ | |
4094 | if (rc || (pSMBr->ByteCount < 4)) | |
4095 | rc = -EIO; /* bad smb */ | |
4096 | /* else if (pFindData){ | |
4097 | memcpy((char *) pFindData, | |
4098 | (char *) &pSMBr->hdr.Protocol + | |
4099 | data_offset, kl); | |
4100 | }*/ else { | |
4101 | /* check that length of list is not more than bcc */ | |
4102 | /* check that each entry does not go beyond length | |
4103 | of list */ | |
4104 | /* check that each element of each entry does not | |
4105 | go beyond end of list */ | |
4106 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
4107 | struct fealist * ea_response_data; | |
4108 | rc = -ENODATA; | |
4109 | /* validate_trans2_offsets() */ | |
4110 | /* BB to check if(start of smb + data_offset > &bcc+ bcc)*/ | |
4111 | ea_response_data = (struct fealist *) | |
4112 | (((char *) &pSMBr->hdr.Protocol) + | |
4113 | data_offset); | |
4114 | name_len = le32_to_cpu(ea_response_data->list_len); | |
4115 | cFYI(1,("ea length %d", name_len)); | |
4116 | if(name_len <= 8) { | |
4117 | /* returned EA size zeroed at top of function */ | |
4118 | cFYI(1,("empty EA list returned from server")); | |
4119 | } else { | |
4120 | /* account for ea list len */ | |
4121 | name_len -= 4; | |
4122 | temp_fea = ea_response_data->list; | |
4123 | temp_ptr = (char *)temp_fea; | |
4124 | /* loop through checking if we have a matching | |
4125 | name and then return the associated value */ | |
4126 | while(name_len > 0) { | |
4127 | __u16 value_len; | |
4128 | name_len -= 4; | |
4129 | temp_ptr += 4; | |
4130 | value_len = le16_to_cpu(temp_fea->value_len); | |
4131 | /* BB validate that value_len falls within SMB, | |
4132 | even though maximum for name_len is 255 */ | |
4133 | if(memcmp(temp_fea->name,ea_name, | |
4134 | temp_fea->name_len) == 0) { | |
4135 | /* found a match */ | |
4136 | rc = value_len; | |
4137 | /* account for prefix user. and trailing null */ | |
4138 | if(rc<=(int)buf_size) { | |
4139 | memcpy(ea_value, | |
4140 | temp_fea->name+temp_fea->name_len+1, | |
4141 | rc); | |
4142 | /* ea values, unlike ea names, | |
4143 | are not null terminated */ | |
4144 | } else if(buf_size == 0) { | |
4145 | /* skip copy - calc size only */ | |
4146 | } else { | |
4147 | /* stop before overrun buffer */ | |
4148 | rc = -ERANGE; | |
4149 | } | |
4150 | break; | |
4151 | } | |
4152 | name_len -= temp_fea->name_len; | |
4153 | temp_ptr += temp_fea->name_len; | |
4154 | /* account for trailing null */ | |
4155 | name_len--; | |
4156 | temp_ptr++; | |
4157 | name_len -= value_len; | |
4158 | temp_ptr += value_len; | |
4159 | /* no trailing null to account for in value len */ | |
4160 | /* go on to next EA */ | |
4161 | temp_fea = (struct fea *)temp_ptr; | |
4162 | } | |
4163 | } | |
4164 | } | |
4165 | } | |
4166 | if (pSMB) | |
4167 | cifs_buf_release(pSMB); | |
4168 | if (rc == -EAGAIN) | |
4169 | goto QEARetry; | |
4170 | ||
4171 | return (ssize_t)rc; | |
4172 | } | |
4173 | ||
4174 | int | |
4175 | CIFSSMBSetEA(const int xid, struct cifsTconInfo *tcon, const char *fileName, | |
4176 | const char * ea_name, const void * ea_value, | |
737b758c SF |
4177 | const __u16 ea_value_len, const struct nls_table *nls_codepage, |
4178 | int remap) | |
1da177e4 LT |
4179 | { |
4180 | struct smb_com_transaction2_spi_req *pSMB = NULL; | |
4181 | struct smb_com_transaction2_spi_rsp *pSMBr = NULL; | |
4182 | struct fealist *parm_data; | |
4183 | int name_len; | |
4184 | int rc = 0; | |
4185 | int bytes_returned = 0; | |
4186 | __u16 params, param_offset, byte_count, offset, count; | |
4187 | ||
4188 | cFYI(1, ("In SetEA")); | |
4189 | SetEARetry: | |
4190 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4191 | (void **) &pSMBr); | |
4192 | if (rc) | |
4193 | return rc; | |
4194 | ||
4195 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
4196 | name_len = | |
b1a45695 | 4197 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 4198 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
4199 | name_len++; /* trailing null */ |
4200 | name_len *= 2; | |
4201 | } else { /* BB improve the check for buffer overruns BB */ | |
4202 | name_len = strnlen(fileName, PATH_MAX); | |
4203 | name_len++; /* trailing null */ | |
4204 | strncpy(pSMB->FileName, fileName, name_len); | |
4205 | } | |
4206 | ||
4207 | params = 6 + name_len; | |
4208 | ||
4209 | /* done calculating parms using name_len of file name, | |
4210 | now use name_len to calculate length of ea name | |
4211 | we are going to create in the inode xattrs */ | |
4212 | if(ea_name == NULL) | |
4213 | name_len = 0; | |
4214 | else | |
4215 | name_len = strnlen(ea_name,255); | |
4216 | ||
4217 | count = sizeof(*parm_data) + ea_value_len + name_len + 1; | |
4218 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4219 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB size from sess */ | |
4220 | pSMB->MaxSetupCount = 0; | |
4221 | pSMB->Reserved = 0; | |
4222 | pSMB->Flags = 0; | |
4223 | pSMB->Timeout = 0; | |
4224 | pSMB->Reserved2 = 0; | |
4225 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
4226 | InformationLevel) - 4; | |
4227 | offset = param_offset + params; | |
4228 | pSMB->InformationLevel = | |
4229 | cpu_to_le16(SMB_SET_FILE_EA); | |
4230 | ||
4231 | parm_data = | |
4232 | (struct fealist *) (((char *) &pSMB->hdr.Protocol) + | |
4233 | offset); | |
4234 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4235 | pSMB->DataOffset = cpu_to_le16(offset); | |
4236 | pSMB->SetupCount = 1; | |
4237 | pSMB->Reserved3 = 0; | |
4238 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
4239 | byte_count = 3 /* pad */ + params + count; | |
4240 | pSMB->DataCount = cpu_to_le16(count); | |
4241 | parm_data->list_len = cpu_to_le32(count); | |
4242 | parm_data->list[0].EA_flags = 0; | |
4243 | /* we checked above that name len is less than 255 */ | |
4244 | parm_data->list[0].name_len = (__u8)name_len;; | |
4245 | /* EA names are always ASCII */ | |
4246 | if(ea_name) | |
4247 | strncpy(parm_data->list[0].name,ea_name,name_len); | |
4248 | parm_data->list[0].name[name_len] = 0; | |
4249 | parm_data->list[0].value_len = cpu_to_le16(ea_value_len); | |
4250 | /* caller ensures that ea_value_len is less than 64K but | |
4251 | we need to ensure that it fits within the smb */ | |
4252 | ||
4253 | /*BB add length check that it would fit in negotiated SMB buffer size BB */ | |
4254 | /* if(ea_value_len > buffer_size - 512 (enough for header)) */ | |
4255 | if(ea_value_len) | |
4256 | memcpy(parm_data->list[0].name+name_len+1,ea_value,ea_value_len); | |
4257 | ||
4258 | pSMB->TotalDataCount = pSMB->DataCount; | |
4259 | pSMB->ParameterCount = cpu_to_le16(params); | |
4260 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4261 | pSMB->Reserved4 = 0; | |
4262 | pSMB->hdr.smb_buf_length += byte_count; | |
4263 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4264 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4265 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4266 | if (rc) { | |
4267 | cFYI(1, ("SetPathInfo (EA) returned %d", rc)); | |
4268 | } | |
4269 | ||
4270 | cifs_buf_release(pSMB); | |
4271 | ||
4272 | if (rc == -EAGAIN) | |
4273 | goto SetEARetry; | |
4274 | ||
4275 | return rc; | |
4276 | } | |
4277 | ||
4278 | #endif |