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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" | |
eeac8047 | 40 | #include "cifsacl.h" |
1da177e4 LT |
41 | |
42 | #ifdef CONFIG_CIFS_POSIX | |
43 | static struct { | |
44 | int index; | |
45 | char *name; | |
46 | } protocols[] = { | |
47 | {CIFS_PROT, "\2NT LM 0.12"}, | |
48 | {CIFS_PROT, "\2POSIX 2"}, | |
49 | {BAD_PROT, "\2"} | |
50 | }; | |
51 | #else | |
52 | static struct { | |
53 | int index; | |
54 | char *name; | |
55 | } protocols[] = { | |
56 | {CIFS_PROT, "\2NT LM 0.12"}, | |
57 | {BAD_PROT, "\2"} | |
58 | }; | |
59 | #endif | |
60 | ||
61 | ||
62 | /* Mark as invalid, all open files on tree connections since they | |
63 | were closed when session to server was lost */ | |
64 | static void mark_open_files_invalid(struct cifsTconInfo * pTcon) | |
65 | { | |
66 | struct cifsFileInfo *open_file = NULL; | |
67 | struct list_head * tmp; | |
68 | struct list_head * tmp1; | |
69 | ||
70 | /* list all files open on tree connection and mark them invalid */ | |
71 | write_lock(&GlobalSMBSeslock); | |
72 | list_for_each_safe(tmp, tmp1, &pTcon->openFileList) { | |
73 | open_file = list_entry(tmp,struct cifsFileInfo, tlist); | |
74 | if(open_file) { | |
75 | open_file->invalidHandle = TRUE; | |
76 | } | |
77 | } | |
78 | write_unlock(&GlobalSMBSeslock); | |
09d1db5c SF |
79 | /* BB Add call to invalidate_inodes(sb) for all superblocks mounted |
80 | to this tcon */ | |
1da177e4 LT |
81 | } |
82 | ||
83 | /* If the return code is zero, this function must fill in request_buf pointer */ | |
84 | static int | |
85 | small_smb_init(int smb_command, int wct, struct cifsTconInfo *tcon, | |
86 | void **request_buf /* returned */) | |
87 | { | |
88 | int rc = 0; | |
89 | ||
90 | /* SMBs NegProt, SessSetup, uLogoff do not have tcon yet so | |
91 | check for tcp and smb session status done differently | |
92 | for those three - in the calling routine */ | |
93 | if(tcon) { | |
6ab16d24 SF |
94 | if(tcon->tidStatus == CifsExiting) { |
95 | /* only tree disconnect, open, and write, | |
96 | (and ulogoff which does not have tcon) | |
97 | are allowed as we start force umount */ | |
98 | if((smb_command != SMB_COM_WRITE_ANDX) && | |
99 | (smb_command != SMB_COM_OPEN_ANDX) && | |
100 | (smb_command != SMB_COM_TREE_DISCONNECT)) { | |
101 | cFYI(1,("can not send cmd %d while umounting", | |
102 | smb_command)); | |
103 | return -ENODEV; | |
104 | } | |
105 | } | |
31ca3bc3 SF |
106 | if((tcon->ses) && (tcon->ses->status != CifsExiting) && |
107 | (tcon->ses->server)){ | |
1da177e4 LT |
108 | struct nls_table *nls_codepage; |
109 | /* Give Demultiplex thread up to 10 seconds to | |
09d1db5c SF |
110 | reconnect, should be greater than cifs socket |
111 | timeout which is 7 seconds */ | |
1da177e4 LT |
112 | while(tcon->ses->server->tcpStatus == CifsNeedReconnect) { |
113 | wait_event_interruptible_timeout(tcon->ses->server->response_q, | |
114 | (tcon->ses->server->tcpStatus == CifsGood), 10 * HZ); | |
115 | if(tcon->ses->server->tcpStatus == CifsNeedReconnect) { | |
116 | /* on "soft" mounts we wait once */ | |
117 | if((tcon->retry == FALSE) || | |
118 | (tcon->ses->status == CifsExiting)) { | |
119 | cFYI(1,("gave up waiting on reconnect in smb_init")); | |
120 | return -EHOSTDOWN; | |
09d1db5c SF |
121 | } /* else "hard" mount - keep retrying |
122 | until process is killed or server | |
123 | comes back on-line */ | |
1da177e4 LT |
124 | } else /* TCP session is reestablished now */ |
125 | break; | |
126 | ||
127 | } | |
128 | ||
129 | nls_codepage = load_nls_default(); | |
130 | /* need to prevent multiple threads trying to | |
131 | simultaneously reconnect the same SMB session */ | |
132 | down(&tcon->ses->sesSem); | |
133 | if(tcon->ses->status == CifsNeedReconnect) | |
09d1db5c SF |
134 | rc = cifs_setup_session(0, tcon->ses, |
135 | nls_codepage); | |
1da177e4 LT |
136 | if(!rc && (tcon->tidStatus == CifsNeedReconnect)) { |
137 | mark_open_files_invalid(tcon); | |
09d1db5c SF |
138 | rc = CIFSTCon(0, tcon->ses, tcon->treeName, tcon |
139 | , nls_codepage); | |
1da177e4 | 140 | up(&tcon->ses->sesSem); |
3e84469d SF |
141 | /* BB FIXME add code to check if wsize needs |
142 | update due to negotiated smb buffer size | |
143 | shrinking */ | |
1da177e4 LT |
144 | if(rc == 0) |
145 | atomic_inc(&tconInfoReconnectCount); | |
146 | ||
147 | cFYI(1, ("reconnect tcon rc = %d", rc)); | |
148 | /* Removed call to reopen open files here - | |
09d1db5c SF |
149 | it is safer (and faster) to reopen files |
150 | one at a time as needed in read and write */ | |
1da177e4 LT |
151 | |
152 | /* Check if handle based operation so we | |
09d1db5c SF |
153 | know whether we can continue or not without |
154 | returning to caller to reset file handle */ | |
1da177e4 LT |
155 | switch(smb_command) { |
156 | case SMB_COM_READ_ANDX: | |
157 | case SMB_COM_WRITE_ANDX: | |
158 | case SMB_COM_CLOSE: | |
159 | case SMB_COM_FIND_CLOSE2: | |
160 | case SMB_COM_LOCKING_ANDX: { | |
161 | unload_nls(nls_codepage); | |
162 | return -EAGAIN; | |
163 | } | |
164 | } | |
165 | } else { | |
166 | up(&tcon->ses->sesSem); | |
167 | } | |
168 | unload_nls(nls_codepage); | |
169 | ||
170 | } else { | |
171 | return -EIO; | |
172 | } | |
173 | } | |
174 | if(rc) | |
175 | return rc; | |
176 | ||
177 | *request_buf = cifs_small_buf_get(); | |
178 | if (*request_buf == NULL) { | |
179 | /* BB should we add a retry in here if not a writepage? */ | |
180 | return -ENOMEM; | |
181 | } | |
182 | ||
183 | header_assemble((struct smb_hdr *) *request_buf, smb_command, tcon,wct); | |
184 | ||
a4544347 SF |
185 | if(tcon != NULL) |
186 | cifs_stats_inc(&tcon->num_smbs_sent); | |
187 | ||
1da177e4 LT |
188 | return rc; |
189 | } | |
190 | ||
191 | /* If the return code is zero, this function must fill in request_buf pointer */ | |
192 | static int | |
193 | smb_init(int smb_command, int wct, struct cifsTconInfo *tcon, | |
194 | void **request_buf /* returned */ , | |
195 | void **response_buf /* returned */ ) | |
196 | { | |
197 | int rc = 0; | |
198 | ||
199 | /* SMBs NegProt, SessSetup, uLogoff do not have tcon yet so | |
200 | check for tcp and smb session status done differently | |
201 | for those three - in the calling routine */ | |
202 | if(tcon) { | |
6ab16d24 SF |
203 | if(tcon->tidStatus == CifsExiting) { |
204 | /* only tree disconnect, open, and write, | |
205 | (and ulogoff which does not have tcon) | |
206 | are allowed as we start force umount */ | |
207 | if((smb_command != SMB_COM_WRITE_ANDX) && | |
208 | (smb_command != SMB_COM_OPEN_ANDX) && | |
209 | (smb_command != SMB_COM_TREE_DISCONNECT)) { | |
210 | cFYI(1,("can not send cmd %d while umounting", | |
211 | smb_command)); | |
212 | return -ENODEV; | |
213 | } | |
214 | } | |
215 | ||
31ca3bc3 SF |
216 | if((tcon->ses) && (tcon->ses->status != CifsExiting) && |
217 | (tcon->ses->server)){ | |
1da177e4 | 218 | struct nls_table *nls_codepage; |
09d1db5c SF |
219 | /* Give Demultiplex thread up to 10 seconds to |
220 | reconnect, should be greater than cifs socket | |
221 | timeout which is 7 seconds */ | |
1da177e4 LT |
222 | while(tcon->ses->server->tcpStatus == CifsNeedReconnect) { |
223 | wait_event_interruptible_timeout(tcon->ses->server->response_q, | |
224 | (tcon->ses->server->tcpStatus == CifsGood), 10 * HZ); | |
09d1db5c SF |
225 | if(tcon->ses->server->tcpStatus == |
226 | CifsNeedReconnect) { | |
1da177e4 LT |
227 | /* on "soft" mounts we wait once */ |
228 | if((tcon->retry == FALSE) || | |
229 | (tcon->ses->status == CifsExiting)) { | |
230 | cFYI(1,("gave up waiting on reconnect in smb_init")); | |
231 | return -EHOSTDOWN; | |
09d1db5c SF |
232 | } /* else "hard" mount - keep retrying |
233 | until process is killed or server | |
234 | comes on-line */ | |
1da177e4 LT |
235 | } else /* TCP session is reestablished now */ |
236 | break; | |
237 | ||
238 | } | |
239 | ||
240 | nls_codepage = load_nls_default(); | |
241 | /* need to prevent multiple threads trying to | |
242 | simultaneously reconnect the same SMB session */ | |
243 | down(&tcon->ses->sesSem); | |
244 | if(tcon->ses->status == CifsNeedReconnect) | |
09d1db5c SF |
245 | rc = cifs_setup_session(0, tcon->ses, |
246 | nls_codepage); | |
1da177e4 LT |
247 | if(!rc && (tcon->tidStatus == CifsNeedReconnect)) { |
248 | mark_open_files_invalid(tcon); | |
09d1db5c SF |
249 | rc = CIFSTCon(0, tcon->ses, tcon->treeName, |
250 | tcon, nls_codepage); | |
1da177e4 | 251 | up(&tcon->ses->sesSem); |
3e84469d SF |
252 | /* BB FIXME add code to check if wsize needs |
253 | update due to negotiated smb buffer size | |
254 | shrinking */ | |
1da177e4 LT |
255 | if(rc == 0) |
256 | atomic_inc(&tconInfoReconnectCount); | |
257 | ||
258 | cFYI(1, ("reconnect tcon rc = %d", rc)); | |
259 | /* Removed call to reopen open files here - | |
09d1db5c SF |
260 | it is safer (and faster) to reopen files |
261 | one at a time as needed in read and write */ | |
1da177e4 LT |
262 | |
263 | /* Check if handle based operation so we | |
09d1db5c SF |
264 | know whether we can continue or not without |
265 | returning to caller to reset file handle */ | |
1da177e4 LT |
266 | switch(smb_command) { |
267 | case SMB_COM_READ_ANDX: | |
268 | case SMB_COM_WRITE_ANDX: | |
269 | case SMB_COM_CLOSE: | |
270 | case SMB_COM_FIND_CLOSE2: | |
271 | case SMB_COM_LOCKING_ANDX: { | |
272 | unload_nls(nls_codepage); | |
273 | return -EAGAIN; | |
274 | } | |
275 | } | |
276 | } else { | |
277 | up(&tcon->ses->sesSem); | |
278 | } | |
279 | unload_nls(nls_codepage); | |
280 | ||
281 | } else { | |
282 | return -EIO; | |
283 | } | |
284 | } | |
285 | if(rc) | |
286 | return rc; | |
287 | ||
288 | *request_buf = cifs_buf_get(); | |
289 | if (*request_buf == NULL) { | |
290 | /* BB should we add a retry in here if not a writepage? */ | |
291 | return -ENOMEM; | |
292 | } | |
293 | /* Although the original thought was we needed the response buf for */ | |
294 | /* potential retries of smb operations it turns out we can determine */ | |
295 | /* from the mid flags when the request buffer can be resent without */ | |
296 | /* having to use a second distinct buffer for the response */ | |
297 | *response_buf = *request_buf; | |
298 | ||
299 | header_assemble((struct smb_hdr *) *request_buf, smb_command, tcon, | |
300 | wct /*wct */ ); | |
301 | ||
a4544347 SF |
302 | if(tcon != NULL) |
303 | cifs_stats_inc(&tcon->num_smbs_sent); | |
304 | ||
1da177e4 LT |
305 | return rc; |
306 | } | |
307 | ||
308 | static int validate_t2(struct smb_t2_rsp * pSMB) | |
309 | { | |
310 | int rc = -EINVAL; | |
311 | int total_size; | |
312 | char * pBCC; | |
313 | ||
314 | /* check for plausible wct, bcc and t2 data and parm sizes */ | |
315 | /* check for parm and data offset going beyond end of smb */ | |
316 | if(pSMB->hdr.WordCount >= 10) { | |
317 | if((le16_to_cpu(pSMB->t2_rsp.ParameterOffset) <= 1024) && | |
318 | (le16_to_cpu(pSMB->t2_rsp.DataOffset) <= 1024)) { | |
319 | /* check that bcc is at least as big as parms + data */ | |
320 | /* check that bcc is less than negotiated smb buffer */ | |
321 | total_size = le16_to_cpu(pSMB->t2_rsp.ParameterCount); | |
322 | if(total_size < 512) { | |
323 | total_size+=le16_to_cpu(pSMB->t2_rsp.DataCount); | |
324 | /* BCC le converted in SendReceive */ | |
09d1db5c SF |
325 | pBCC = (pSMB->hdr.WordCount * 2) + |
326 | sizeof(struct smb_hdr) + | |
1da177e4 LT |
327 | (char *)pSMB; |
328 | if((total_size <= (*(u16 *)pBCC)) && | |
329 | (total_size < | |
330 | CIFSMaxBufSize+MAX_CIFS_HDR_SIZE)) { | |
331 | return 0; | |
332 | } | |
333 | ||
334 | } | |
335 | } | |
336 | } | |
337 | cifs_dump_mem("Invalid transact2 SMB: ",(char *)pSMB, | |
338 | sizeof(struct smb_t2_rsp) + 16); | |
339 | return rc; | |
340 | } | |
341 | int | |
342 | CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) | |
343 | { | |
344 | NEGOTIATE_REQ *pSMB; | |
345 | NEGOTIATE_RSP *pSMBr; | |
346 | int rc = 0; | |
347 | int bytes_returned; | |
348 | struct TCP_Server_Info * server; | |
349 | u16 count; | |
350 | ||
351 | if(ses->server) | |
352 | server = ses->server; | |
353 | else { | |
354 | rc = -EIO; | |
355 | return rc; | |
356 | } | |
357 | rc = smb_init(SMB_COM_NEGOTIATE, 0, NULL /* no tcon yet */ , | |
358 | (void **) &pSMB, (void **) &pSMBr); | |
359 | if (rc) | |
360 | return rc; | |
1982c344 | 361 | pSMB->hdr.Mid = GetNextMid(server); |
1da177e4 LT |
362 | pSMB->hdr.Flags2 |= SMBFLG2_UNICODE; |
363 | if (extended_security) | |
364 | pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC; | |
365 | ||
366 | count = strlen(protocols[0].name) + 1; | |
367 | strncpy(pSMB->DialectsArray, protocols[0].name, 30); | |
368 | /* null guaranteed to be at end of source and target buffers anyway */ | |
369 | ||
370 | pSMB->hdr.smb_buf_length += count; | |
371 | pSMB->ByteCount = cpu_to_le16(count); | |
372 | ||
373 | rc = SendReceive(xid, ses, (struct smb_hdr *) pSMB, | |
374 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
375 | if (rc == 0) { | |
eeac8047 SF |
376 | server->secMode = pSMBr->SecurityMode; |
377 | if((server->secMode & SECMODE_USER) == 0) | |
378 | cFYI(1,("share mode security")); | |
379 | server->secType = NTLM; /* BB override default for | |
09d1db5c SF |
380 | NTLMv2 or kerberos v5 */ |
381 | /* one byte - no need to convert this or EncryptionKeyLen | |
382 | from little endian */ | |
1da177e4 LT |
383 | server->maxReq = le16_to_cpu(pSMBr->MaxMpxCount); |
384 | /* probably no need to store and check maxvcs */ | |
385 | server->maxBuf = | |
386 | min(le32_to_cpu(pSMBr->MaxBufferSize), | |
387 | (__u32) CIFSMaxBufSize + MAX_CIFS_HDR_SIZE); | |
388 | server->maxRw = le32_to_cpu(pSMBr->MaxRawSize); | |
eeac8047 | 389 | cFYI(0, ("Max buf = %d", ses->server->maxBuf)); |
1da177e4 LT |
390 | GETU32(ses->server->sessid) = le32_to_cpu(pSMBr->SessionKey); |
391 | server->capabilities = le32_to_cpu(pSMBr->Capabilities); | |
392 | server->timeZone = le16_to_cpu(pSMBr->ServerTimeZone); | |
393 | /* BB with UTC do we ever need to be using srvr timezone? */ | |
394 | if (pSMBr->EncryptionKeyLength == CIFS_CRYPTO_KEY_SIZE) { | |
395 | memcpy(server->cryptKey, pSMBr->u.EncryptionKey, | |
396 | CIFS_CRYPTO_KEY_SIZE); | |
397 | } else if ((pSMBr->hdr.Flags2 & SMBFLG2_EXT_SEC) | |
398 | && (pSMBr->EncryptionKeyLength == 0)) { | |
399 | /* decode security blob */ | |
400 | } else | |
401 | rc = -EIO; | |
402 | ||
403 | /* BB might be helpful to save off the domain of server here */ | |
404 | ||
405 | if ((pSMBr->hdr.Flags2 & SMBFLG2_EXT_SEC) && | |
406 | (server->capabilities & CAP_EXTENDED_SECURITY)) { | |
407 | count = pSMBr->ByteCount; | |
408 | if (count < 16) | |
409 | rc = -EIO; | |
410 | else if (count == 16) { | |
411 | server->secType = RawNTLMSSP; | |
412 | if (server->socketUseCount.counter > 1) { | |
413 | if (memcmp | |
414 | (server->server_GUID, | |
415 | pSMBr->u.extended_response. | |
416 | GUID, 16) != 0) { | |
eeac8047 | 417 | cFYI(1, ("server UID changed")); |
1da177e4 LT |
418 | memcpy(server-> |
419 | server_GUID, | |
420 | pSMBr->u. | |
421 | extended_response. | |
422 | GUID, 16); | |
423 | } | |
424 | } else | |
425 | memcpy(server->server_GUID, | |
426 | pSMBr->u.extended_response. | |
427 | GUID, 16); | |
428 | } else { | |
429 | rc = decode_negTokenInit(pSMBr->u. | |
430 | extended_response. | |
431 | SecurityBlob, | |
432 | count - 16, | |
433 | &server->secType); | |
434 | if(rc == 1) { | |
435 | /* BB Need to fill struct for sessetup here */ | |
436 | rc = -EOPNOTSUPP; | |
437 | } else { | |
438 | rc = -EINVAL; | |
439 | } | |
440 | } | |
441 | } else | |
442 | server->capabilities &= ~CAP_EXTENDED_SECURITY; | |
443 | if(sign_CIFS_PDUs == FALSE) { | |
444 | if(server->secMode & SECMODE_SIGN_REQUIRED) | |
445 | cERROR(1, | |
446 | ("Server requires /proc/fs/cifs/PacketSigningEnabled")); | |
1982c344 | 447 | server->secMode &= ~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED); |
1da177e4 LT |
448 | } else if(sign_CIFS_PDUs == 1) { |
449 | if((server->secMode & SECMODE_SIGN_REQUIRED) == 0) | |
1982c344 | 450 | server->secMode &= ~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED); |
1da177e4 LT |
451 | } |
452 | ||
453 | } | |
1982c344 | 454 | |
4a6d87f1 | 455 | cifs_buf_release(pSMB); |
1da177e4 LT |
456 | return rc; |
457 | } | |
458 | ||
459 | int | |
460 | CIFSSMBTDis(const int xid, struct cifsTconInfo *tcon) | |
461 | { | |
462 | struct smb_hdr *smb_buffer; | |
463 | struct smb_hdr *smb_buffer_response; /* BB removeme BB */ | |
464 | int rc = 0; | |
465 | int length; | |
466 | ||
467 | cFYI(1, ("In tree disconnect")); | |
468 | /* | |
469 | * If last user of the connection and | |
470 | * connection alive - disconnect it | |
471 | * If this is the last connection on the server session disconnect it | |
472 | * (and inside session disconnect we should check if tcp socket needs | |
473 | * to be freed and kernel thread woken up). | |
474 | */ | |
475 | if (tcon) | |
476 | down(&tcon->tconSem); | |
477 | else | |
478 | return -EIO; | |
479 | ||
480 | atomic_dec(&tcon->useCount); | |
481 | if (atomic_read(&tcon->useCount) > 0) { | |
482 | up(&tcon->tconSem); | |
483 | return -EBUSY; | |
484 | } | |
485 | ||
486 | /* No need to return error on this operation if tid invalidated and | |
487 | closed on server already e.g. due to tcp session crashing */ | |
488 | if(tcon->tidStatus == CifsNeedReconnect) { | |
489 | up(&tcon->tconSem); | |
490 | return 0; | |
491 | } | |
492 | ||
493 | if((tcon->ses == NULL) || (tcon->ses->server == NULL)) { | |
494 | up(&tcon->tconSem); | |
495 | return -EIO; | |
496 | } | |
09d1db5c SF |
497 | rc = small_smb_init(SMB_COM_TREE_DISCONNECT, 0, tcon, |
498 | (void **)&smb_buffer); | |
1da177e4 LT |
499 | if (rc) { |
500 | up(&tcon->tconSem); | |
501 | return rc; | |
502 | } else { | |
503 | smb_buffer_response = smb_buffer; /* BB removeme BB */ | |
cd63499c | 504 | } |
1da177e4 LT |
505 | rc = SendReceive(xid, tcon->ses, smb_buffer, smb_buffer_response, |
506 | &length, 0); | |
507 | if (rc) | |
966ca923 | 508 | cFYI(1, ("Tree disconnect failed %d", rc)); |
1da177e4 LT |
509 | |
510 | if (smb_buffer) | |
511 | cifs_small_buf_release(smb_buffer); | |
512 | up(&tcon->tconSem); | |
513 | ||
514 | /* No need to return error on this operation if tid invalidated and | |
515 | closed on server already e.g. due to tcp session crashing */ | |
516 | if (rc == -EAGAIN) | |
517 | rc = 0; | |
518 | ||
519 | return rc; | |
520 | } | |
521 | ||
522 | int | |
523 | CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses) | |
524 | { | |
525 | struct smb_hdr *smb_buffer_response; | |
526 | LOGOFF_ANDX_REQ *pSMB; | |
527 | int rc = 0; | |
528 | int length; | |
529 | ||
530 | cFYI(1, ("In SMBLogoff for session disconnect")); | |
531 | if (ses) | |
532 | down(&ses->sesSem); | |
533 | else | |
534 | return -EIO; | |
535 | ||
536 | atomic_dec(&ses->inUse); | |
537 | if (atomic_read(&ses->inUse) > 0) { | |
538 | up(&ses->sesSem); | |
539 | return -EBUSY; | |
540 | } | |
541 | rc = small_smb_init(SMB_COM_LOGOFF_ANDX, 2, NULL, (void **)&pSMB); | |
542 | if (rc) { | |
543 | up(&ses->sesSem); | |
544 | return rc; | |
545 | } | |
546 | ||
547 | smb_buffer_response = (struct smb_hdr *)pSMB; /* BB removeme BB */ | |
548 | ||
549 | if(ses->server) { | |
1982c344 SF |
550 | pSMB->hdr.Mid = GetNextMid(ses->server); |
551 | ||
1da177e4 LT |
552 | if(ses->server->secMode & |
553 | (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) | |
554 | pSMB->hdr.Flags2 |= SMBFLG2_SECURITY_SIGNATURE; | |
555 | } | |
556 | ||
557 | pSMB->hdr.Uid = ses->Suid; | |
558 | ||
559 | pSMB->AndXCommand = 0xFF; | |
560 | rc = SendReceive(xid, ses, (struct smb_hdr *) pSMB, | |
561 | smb_buffer_response, &length, 0); | |
562 | if (ses->server) { | |
563 | atomic_dec(&ses->server->socketUseCount); | |
564 | if (atomic_read(&ses->server->socketUseCount) == 0) { | |
565 | spin_lock(&GlobalMid_Lock); | |
566 | ses->server->tcpStatus = CifsExiting; | |
567 | spin_unlock(&GlobalMid_Lock); | |
568 | rc = -ESHUTDOWN; | |
569 | } | |
570 | } | |
a59c6586 | 571 | up(&ses->sesSem); |
4a6d87f1 | 572 | cifs_small_buf_release(pSMB); |
1da177e4 LT |
573 | |
574 | /* if session dead then we do not need to do ulogoff, | |
575 | since server closed smb session, no sense reporting | |
576 | error */ | |
577 | if (rc == -EAGAIN) | |
578 | rc = 0; | |
579 | return rc; | |
580 | } | |
581 | ||
582 | int | |
737b758c SF |
583 | CIFSSMBDelFile(const int xid, struct cifsTconInfo *tcon, const char *fileName, |
584 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
585 | { |
586 | DELETE_FILE_REQ *pSMB = NULL; | |
587 | DELETE_FILE_RSP *pSMBr = NULL; | |
588 | int rc = 0; | |
589 | int bytes_returned; | |
590 | int name_len; | |
591 | ||
592 | DelFileRetry: | |
593 | rc = smb_init(SMB_COM_DELETE, 1, tcon, (void **) &pSMB, | |
594 | (void **) &pSMBr); | |
595 | if (rc) | |
596 | return rc; | |
597 | ||
598 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
599 | name_len = | |
b1a45695 | 600 | cifsConvertToUCS((__le16 *) pSMB->fileName, fileName, |
737b758c | 601 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
602 | name_len++; /* trailing null */ |
603 | name_len *= 2; | |
09d1db5c | 604 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
605 | name_len = strnlen(fileName, PATH_MAX); |
606 | name_len++; /* trailing null */ | |
607 | strncpy(pSMB->fileName, fileName, name_len); | |
608 | } | |
609 | pSMB->SearchAttributes = | |
610 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM); | |
611 | pSMB->BufferFormat = 0x04; | |
612 | pSMB->hdr.smb_buf_length += name_len + 1; | |
613 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
614 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
615 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 616 | cifs_stats_inc(&tcon->num_deletes); |
1da177e4 LT |
617 | if (rc) { |
618 | cFYI(1, ("Error in RMFile = %d", rc)); | |
619 | } | |
1da177e4 LT |
620 | |
621 | cifs_buf_release(pSMB); | |
622 | if (rc == -EAGAIN) | |
623 | goto DelFileRetry; | |
624 | ||
625 | return rc; | |
626 | } | |
627 | ||
628 | int | |
737b758c SF |
629 | CIFSSMBRmDir(const int xid, struct cifsTconInfo *tcon, const char *dirName, |
630 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
631 | { |
632 | DELETE_DIRECTORY_REQ *pSMB = NULL; | |
633 | DELETE_DIRECTORY_RSP *pSMBr = NULL; | |
634 | int rc = 0; | |
635 | int bytes_returned; | |
636 | int name_len; | |
637 | ||
638 | cFYI(1, ("In CIFSSMBRmDir")); | |
639 | RmDirRetry: | |
640 | rc = smb_init(SMB_COM_DELETE_DIRECTORY, 0, tcon, (void **) &pSMB, | |
641 | (void **) &pSMBr); | |
642 | if (rc) | |
643 | return rc; | |
644 | ||
645 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
737b758c SF |
646 | name_len = cifsConvertToUCS((__le16 *) pSMB->DirName, dirName, |
647 | PATH_MAX, nls_codepage, remap); | |
1da177e4 LT |
648 | name_len++; /* trailing null */ |
649 | name_len *= 2; | |
09d1db5c | 650 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
651 | name_len = strnlen(dirName, PATH_MAX); |
652 | name_len++; /* trailing null */ | |
653 | strncpy(pSMB->DirName, dirName, name_len); | |
654 | } | |
655 | ||
656 | pSMB->BufferFormat = 0x04; | |
657 | pSMB->hdr.smb_buf_length += name_len + 1; | |
658 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
659 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
660 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 661 | cifs_stats_inc(&tcon->num_rmdirs); |
1da177e4 LT |
662 | if (rc) { |
663 | cFYI(1, ("Error in RMDir = %d", rc)); | |
664 | } | |
1da177e4 LT |
665 | |
666 | cifs_buf_release(pSMB); | |
667 | if (rc == -EAGAIN) | |
668 | goto RmDirRetry; | |
669 | return rc; | |
670 | } | |
671 | ||
672 | int | |
673 | CIFSSMBMkDir(const int xid, struct cifsTconInfo *tcon, | |
737b758c | 674 | const char *name, const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
675 | { |
676 | int rc = 0; | |
677 | CREATE_DIRECTORY_REQ *pSMB = NULL; | |
678 | CREATE_DIRECTORY_RSP *pSMBr = NULL; | |
679 | int bytes_returned; | |
680 | int name_len; | |
681 | ||
682 | cFYI(1, ("In CIFSSMBMkDir")); | |
683 | MkDirRetry: | |
684 | rc = smb_init(SMB_COM_CREATE_DIRECTORY, 0, tcon, (void **) &pSMB, | |
685 | (void **) &pSMBr); | |
686 | if (rc) | |
687 | return rc; | |
688 | ||
689 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
b1a45695 | 690 | name_len = cifsConvertToUCS((__le16 *) pSMB->DirName, name, |
737b758c | 691 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
692 | name_len++; /* trailing null */ |
693 | name_len *= 2; | |
09d1db5c | 694 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
695 | name_len = strnlen(name, PATH_MAX); |
696 | name_len++; /* trailing null */ | |
697 | strncpy(pSMB->DirName, name, name_len); | |
698 | } | |
699 | ||
700 | pSMB->BufferFormat = 0x04; | |
701 | pSMB->hdr.smb_buf_length += name_len + 1; | |
702 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
703 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
704 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 705 | cifs_stats_inc(&tcon->num_mkdirs); |
1da177e4 LT |
706 | if (rc) { |
707 | cFYI(1, ("Error in Mkdir = %d", rc)); | |
708 | } | |
a5a2b489 | 709 | |
1da177e4 LT |
710 | cifs_buf_release(pSMB); |
711 | if (rc == -EAGAIN) | |
712 | goto MkDirRetry; | |
713 | return rc; | |
714 | } | |
715 | ||
a9d02ad4 SF |
716 | static __u16 convert_disposition(int disposition) |
717 | { | |
718 | __u16 ofun = 0; | |
719 | ||
720 | switch (disposition) { | |
721 | case FILE_SUPERSEDE: | |
722 | ofun = SMBOPEN_OCREATE | SMBOPEN_OTRUNC; | |
723 | break; | |
724 | case FILE_OPEN: | |
725 | ofun = SMBOPEN_OAPPEND; | |
726 | break; | |
727 | case FILE_CREATE: | |
728 | ofun = SMBOPEN_OCREATE; | |
729 | break; | |
730 | case FILE_OPEN_IF: | |
731 | ofun = SMBOPEN_OCREATE | SMBOPEN_OAPPEND; | |
732 | break; | |
733 | case FILE_OVERWRITE: | |
734 | ofun = SMBOPEN_OTRUNC; | |
735 | break; | |
736 | case FILE_OVERWRITE_IF: | |
737 | ofun = SMBOPEN_OCREATE | SMBOPEN_OTRUNC; | |
738 | break; | |
739 | default: | |
740 | cFYI(1,("unknown disposition %d",disposition)); | |
741 | ofun = SMBOPEN_OAPPEND; /* regular open */ | |
742 | } | |
743 | return ofun; | |
744 | } | |
745 | ||
746 | int | |
747 | SMBLegacyOpen(const int xid, struct cifsTconInfo *tcon, | |
748 | const char *fileName, const int openDisposition, | |
749 | const int access_flags, const int create_options, __u16 * netfid, | |
750 | int *pOplock, FILE_ALL_INFO * pfile_info, | |
751 | const struct nls_table *nls_codepage, int remap) | |
752 | { | |
753 | int rc = -EACCES; | |
754 | OPENX_REQ *pSMB = NULL; | |
755 | OPENX_RSP *pSMBr = NULL; | |
756 | int bytes_returned; | |
757 | int name_len; | |
758 | __u16 count; | |
759 | ||
760 | OldOpenRetry: | |
761 | rc = smb_init(SMB_COM_OPEN_ANDX, 15, tcon, (void **) &pSMB, | |
762 | (void **) &pSMBr); | |
763 | if (rc) | |
764 | return rc; | |
765 | ||
766 | pSMB->AndXCommand = 0xFF; /* none */ | |
767 | ||
768 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
769 | count = 1; /* account for one byte pad to word boundary */ | |
770 | name_len = | |
771 | cifsConvertToUCS((__le16 *) (pSMB->fileName + 1), | |
772 | fileName, PATH_MAX, nls_codepage, remap); | |
773 | name_len++; /* trailing null */ | |
774 | name_len *= 2; | |
775 | } else { /* BB improve check for buffer overruns BB */ | |
776 | count = 0; /* no pad */ | |
777 | name_len = strnlen(fileName, PATH_MAX); | |
778 | name_len++; /* trailing null */ | |
779 | strncpy(pSMB->fileName, fileName, name_len); | |
780 | } | |
781 | if (*pOplock & REQ_OPLOCK) | |
782 | pSMB->OpenFlags = cpu_to_le16(REQ_OPLOCK); | |
783 | else if (*pOplock & REQ_BATCHOPLOCK) { | |
784 | pSMB->OpenFlags = cpu_to_le16(REQ_BATCHOPLOCK); | |
785 | } | |
786 | pSMB->OpenFlags |= cpu_to_le16(REQ_MORE_INFO); | |
787 | /* BB fixme add conversion for access_flags to bits 0 - 2 of mode */ | |
788 | /* 0 = read | |
789 | 1 = write | |
790 | 2 = rw | |
791 | 3 = execute | |
792 | */ | |
793 | pSMB->Mode = cpu_to_le16(2); | |
794 | pSMB->Mode |= cpu_to_le16(0x40); /* deny none */ | |
795 | /* set file as system file if special file such | |
796 | as fifo and server expecting SFU style and | |
797 | no Unix extensions */ | |
798 | ||
799 | if(create_options & CREATE_OPTION_SPECIAL) | |
800 | pSMB->FileAttributes = cpu_to_le16(ATTR_SYSTEM); | |
801 | else | |
3e87d803 | 802 | pSMB->FileAttributes = cpu_to_le16(0/*ATTR_NORMAL*/); /* BB FIXME */ |
a9d02ad4 SF |
803 | |
804 | /* if ((omode & S_IWUGO) == 0) | |
805 | pSMB->FileAttributes |= cpu_to_le32(ATTR_READONLY);*/ | |
806 | /* Above line causes problems due to vfs splitting create into two | |
807 | pieces - need to set mode after file created not while it is | |
808 | being created */ | |
809 | ||
810 | /* BB FIXME BB */ | |
811 | /* pSMB->CreateOptions = cpu_to_le32(create_options & CREATE_OPTIONS_MASK); */ | |
812 | /* BB FIXME END BB */ | |
3e87d803 SF |
813 | |
814 | pSMB->Sattr = cpu_to_le16(ATTR_HIDDEN | ATTR_SYSTEM | ATTR_DIRECTORY); | |
70ca734a | 815 | pSMB->OpenFunction = cpu_to_le16(convert_disposition(openDisposition)); |
a9d02ad4 SF |
816 | count += name_len; |
817 | pSMB->hdr.smb_buf_length += count; | |
818 | ||
819 | pSMB->ByteCount = cpu_to_le16(count); | |
820 | /* long_op set to 1 to allow for oplock break timeouts */ | |
821 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
822 | (struct smb_hdr *) pSMBr, &bytes_returned, 1); | |
823 | cifs_stats_inc(&tcon->num_opens); | |
824 | if (rc) { | |
825 | cFYI(1, ("Error in Open = %d", rc)); | |
826 | } else { | |
827 | /* BB verify if wct == 15 */ | |
828 | ||
829 | /* *pOplock = pSMBr->OplockLevel; */ /* BB take from action field BB */ | |
830 | ||
831 | *netfid = pSMBr->Fid; /* cifs fid stays in le */ | |
832 | /* Let caller know file was created so we can set the mode. */ | |
833 | /* Do we care about the CreateAction in any other cases? */ | |
834 | /* BB FIXME BB */ | |
835 | /* if(cpu_to_le32(FILE_CREATE) == pSMBr->CreateAction) | |
836 | *pOplock |= CIFS_CREATE_ACTION; */ | |
837 | /* BB FIXME END */ | |
838 | ||
839 | if(pfile_info) { | |
840 | pfile_info->CreationTime = 0; /* BB convert CreateTime*/ | |
841 | pfile_info->LastAccessTime = 0; /* BB fixme */ | |
842 | pfile_info->LastWriteTime = 0; /* BB fixme */ | |
843 | pfile_info->ChangeTime = 0; /* BB fixme */ | |
70ca734a SF |
844 | pfile_info->Attributes = |
845 | cpu_to_le32(le16_to_cpu(pSMBr->FileAttributes)); | |
a9d02ad4 | 846 | /* the file_info buf is endian converted by caller */ |
70ca734a SF |
847 | pfile_info->AllocationSize = |
848 | cpu_to_le64(le32_to_cpu(pSMBr->EndOfFile)); | |
849 | pfile_info->EndOfFile = pfile_info->AllocationSize; | |
a9d02ad4 SF |
850 | pfile_info->NumberOfLinks = cpu_to_le32(1); |
851 | } | |
852 | } | |
853 | ||
854 | cifs_buf_release(pSMB); | |
855 | if (rc == -EAGAIN) | |
856 | goto OldOpenRetry; | |
857 | return rc; | |
858 | } | |
859 | ||
1da177e4 LT |
860 | int |
861 | CIFSSMBOpen(const int xid, struct cifsTconInfo *tcon, | |
862 | const char *fileName, const int openDisposition, | |
863 | const int access_flags, const int create_options, __u16 * netfid, | |
864 | int *pOplock, FILE_ALL_INFO * pfile_info, | |
737b758c | 865 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
866 | { |
867 | int rc = -EACCES; | |
868 | OPEN_REQ *pSMB = NULL; | |
869 | OPEN_RSP *pSMBr = NULL; | |
870 | int bytes_returned; | |
871 | int name_len; | |
872 | __u16 count; | |
873 | ||
874 | openRetry: | |
875 | rc = smb_init(SMB_COM_NT_CREATE_ANDX, 24, tcon, (void **) &pSMB, | |
876 | (void **) &pSMBr); | |
877 | if (rc) | |
878 | return rc; | |
879 | ||
880 | pSMB->AndXCommand = 0xFF; /* none */ | |
881 | ||
882 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
883 | count = 1; /* account for one byte pad to word boundary */ | |
884 | name_len = | |
b1a45695 | 885 | cifsConvertToUCS((__le16 *) (pSMB->fileName + 1), |
737b758c | 886 | fileName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
887 | name_len++; /* trailing null */ |
888 | name_len *= 2; | |
889 | pSMB->NameLength = cpu_to_le16(name_len); | |
09d1db5c | 890 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
891 | count = 0; /* no pad */ |
892 | name_len = strnlen(fileName, PATH_MAX); | |
893 | name_len++; /* trailing null */ | |
894 | pSMB->NameLength = cpu_to_le16(name_len); | |
895 | strncpy(pSMB->fileName, fileName, name_len); | |
896 | } | |
897 | if (*pOplock & REQ_OPLOCK) | |
898 | pSMB->OpenFlags = cpu_to_le32(REQ_OPLOCK); | |
899 | else if (*pOplock & REQ_BATCHOPLOCK) { | |
900 | pSMB->OpenFlags = cpu_to_le32(REQ_BATCHOPLOCK); | |
901 | } | |
902 | pSMB->DesiredAccess = cpu_to_le32(access_flags); | |
903 | pSMB->AllocationSize = 0; | |
eda3c029 SF |
904 | /* set file as system file if special file such |
905 | as fifo and server expecting SFU style and | |
906 | no Unix extensions */ | |
907 | if(create_options & CREATE_OPTION_SPECIAL) | |
908 | pSMB->FileAttributes = cpu_to_le32(ATTR_SYSTEM); | |
909 | else | |
910 | pSMB->FileAttributes = cpu_to_le32(ATTR_NORMAL); | |
1da177e4 LT |
911 | /* XP does not handle ATTR_POSIX_SEMANTICS */ |
912 | /* but it helps speed up case sensitive checks for other | |
913 | servers such as Samba */ | |
914 | if (tcon->ses->capabilities & CAP_UNIX) | |
915 | pSMB->FileAttributes |= cpu_to_le32(ATTR_POSIX_SEMANTICS); | |
916 | ||
917 | /* if ((omode & S_IWUGO) == 0) | |
918 | pSMB->FileAttributes |= cpu_to_le32(ATTR_READONLY);*/ | |
919 | /* Above line causes problems due to vfs splitting create into two | |
920 | pieces - need to set mode after file created not while it is | |
921 | being created */ | |
922 | pSMB->ShareAccess = cpu_to_le32(FILE_SHARE_ALL); | |
923 | pSMB->CreateDisposition = cpu_to_le32(openDisposition); | |
eda3c029 | 924 | pSMB->CreateOptions = cpu_to_le32(create_options & CREATE_OPTIONS_MASK); |
09d1db5c SF |
925 | /* BB Expirement with various impersonation levels and verify */ |
926 | pSMB->ImpersonationLevel = cpu_to_le32(SECURITY_IMPERSONATION); | |
1da177e4 LT |
927 | pSMB->SecurityFlags = |
928 | SECURITY_CONTEXT_TRACKING | SECURITY_EFFECTIVE_ONLY; | |
929 | ||
930 | count += name_len; | |
931 | pSMB->hdr.smb_buf_length += count; | |
932 | ||
933 | pSMB->ByteCount = cpu_to_le16(count); | |
934 | /* long_op set to 1 to allow for oplock break timeouts */ | |
935 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
936 | (struct smb_hdr *) pSMBr, &bytes_returned, 1); | |
a4544347 | 937 | cifs_stats_inc(&tcon->num_opens); |
1da177e4 LT |
938 | if (rc) { |
939 | cFYI(1, ("Error in Open = %d", rc)); | |
940 | } else { | |
09d1db5c | 941 | *pOplock = pSMBr->OplockLevel; /* 1 byte no need to le_to_cpu */ |
1da177e4 LT |
942 | *netfid = pSMBr->Fid; /* cifs fid stays in le */ |
943 | /* Let caller know file was created so we can set the mode. */ | |
944 | /* Do we care about the CreateAction in any other cases? */ | |
945 | if(cpu_to_le32(FILE_CREATE) == pSMBr->CreateAction) | |
946 | *pOplock |= CIFS_CREATE_ACTION; | |
947 | if(pfile_info) { | |
948 | memcpy((char *)pfile_info,(char *)&pSMBr->CreationTime, | |
949 | 36 /* CreationTime to Attributes */); | |
950 | /* the file_info buf is endian converted by caller */ | |
951 | pfile_info->AllocationSize = pSMBr->AllocationSize; | |
952 | pfile_info->EndOfFile = pSMBr->EndOfFile; | |
953 | pfile_info->NumberOfLinks = cpu_to_le32(1); | |
954 | } | |
1da177e4 | 955 | } |
a5a2b489 | 956 | |
1da177e4 LT |
957 | cifs_buf_release(pSMB); |
958 | if (rc == -EAGAIN) | |
959 | goto openRetry; | |
960 | return rc; | |
961 | } | |
962 | ||
1da177e4 LT |
963 | int |
964 | CIFSSMBRead(const int xid, struct cifsTconInfo *tcon, | |
ec637e3f SF |
965 | const int netfid, const unsigned int count, |
966 | const __u64 lseek, unsigned int *nbytes, char **buf, | |
967 | int * pbuf_type) | |
1da177e4 LT |
968 | { |
969 | int rc = -EACCES; | |
970 | READ_REQ *pSMB = NULL; | |
971 | READ_RSP *pSMBr = NULL; | |
972 | char *pReadData = NULL; | |
bfa0d75a | 973 | int wct; |
ec637e3f SF |
974 | int resp_buf_type = 0; |
975 | struct kvec iov[1]; | |
1da177e4 LT |
976 | |
977 | cFYI(1,("Reading %d bytes on fid %d",count,netfid)); | |
bfa0d75a SF |
978 | if(tcon->ses->capabilities & CAP_LARGE_FILES) |
979 | wct = 12; | |
980 | else | |
981 | wct = 10; /* old style read */ | |
1da177e4 LT |
982 | |
983 | *nbytes = 0; | |
ec637e3f | 984 | rc = small_smb_init(SMB_COM_READ_ANDX, wct, tcon, (void **) &pSMB); |
1da177e4 LT |
985 | if (rc) |
986 | return rc; | |
987 | ||
988 | /* tcon and ses pointer are checked in smb_init */ | |
989 | if (tcon->ses->server == NULL) | |
990 | return -ECONNABORTED; | |
991 | ||
ec637e3f | 992 | pSMB->AndXCommand = 0xFF; /* none */ |
1da177e4 LT |
993 | pSMB->Fid = netfid; |
994 | pSMB->OffsetLow = cpu_to_le32(lseek & 0xFFFFFFFF); | |
bfa0d75a SF |
995 | if(wct == 12) |
996 | pSMB->OffsetHigh = cpu_to_le32(lseek >> 32); | |
ec637e3f SF |
997 | else if((lseek >> 32) > 0) /* can not handle this big offset for old */ |
998 | return -EIO; | |
bfa0d75a | 999 | |
1da177e4 LT |
1000 | pSMB->Remaining = 0; |
1001 | pSMB->MaxCount = cpu_to_le16(count & 0xFFFF); | |
1002 | pSMB->MaxCountHigh = cpu_to_le32(count >> 16); | |
bfa0d75a SF |
1003 | if(wct == 12) |
1004 | pSMB->ByteCount = 0; /* no need to do le conversion since 0 */ | |
1005 | else { | |
1006 | /* old style read */ | |
ec637e3f | 1007 | struct smb_com_readx_req * pSMBW = |
bfa0d75a | 1008 | (struct smb_com_readx_req *)pSMB; |
ec637e3f | 1009 | pSMBW->ByteCount = 0; |
bfa0d75a | 1010 | } |
ec637e3f SF |
1011 | |
1012 | iov[0].iov_base = (char *)pSMB; | |
1013 | iov[0].iov_len = pSMB->hdr.smb_buf_length + 4; | |
1014 | rc = SendReceive2(xid, tcon->ses, iov, | |
1015 | 1 /* num iovecs */, | |
1016 | &resp_buf_type, 0); | |
a4544347 | 1017 | cifs_stats_inc(&tcon->num_reads); |
ec637e3f | 1018 | pSMBr = (READ_RSP *)iov[0].iov_base; |
1da177e4 LT |
1019 | if (rc) { |
1020 | cERROR(1, ("Send error in read = %d", rc)); | |
1021 | } else { | |
1022 | int data_length = le16_to_cpu(pSMBr->DataLengthHigh); | |
1023 | data_length = data_length << 16; | |
1024 | data_length += le16_to_cpu(pSMBr->DataLength); | |
1025 | *nbytes = data_length; | |
1026 | ||
1027 | /*check that DataLength would not go beyond end of SMB */ | |
ec637e3f | 1028 | if ((data_length > CIFSMaxBufSize) |
1da177e4 LT |
1029 | || (data_length > count)) { |
1030 | cFYI(1,("bad length %d for count %d",data_length,count)); | |
1031 | rc = -EIO; | |
1032 | *nbytes = 0; | |
1033 | } else { | |
ec637e3f | 1034 | pReadData = (char *) (&pSMBr->hdr.Protocol) + |
1da177e4 | 1035 | le16_to_cpu(pSMBr->DataOffset); |
ec637e3f SF |
1036 | /* if(rc = copy_to_user(buf, pReadData, data_length)) { |
1037 | cERROR(1,("Faulting on read rc = %d",rc)); | |
1038 | rc = -EFAULT; | |
1039 | }*/ /* can not use copy_to_user when using page cache*/ | |
1da177e4 | 1040 | if(*buf) |
ec637e3f | 1041 | memcpy(*buf,pReadData,data_length); |
1da177e4 LT |
1042 | } |
1043 | } | |
1da177e4 | 1044 | |
ec637e3f SF |
1045 | cifs_small_buf_release(pSMB); |
1046 | if(*buf) { | |
1047 | if(resp_buf_type == CIFS_SMALL_BUFFER) | |
1048 | cifs_small_buf_release(iov[0].iov_base); | |
1049 | else if(resp_buf_type == CIFS_LARGE_BUFFER) | |
1050 | cifs_buf_release(iov[0].iov_base); | |
6cec2aed SF |
1051 | } else if(resp_buf_type != CIFS_NO_BUFFER) { |
1052 | /* return buffer to caller to free */ | |
1053 | *buf = iov[0].iov_base; | |
ec637e3f SF |
1054 | if(resp_buf_type == CIFS_SMALL_BUFFER) |
1055 | *pbuf_type = CIFS_SMALL_BUFFER; | |
1056 | else if(resp_buf_type == CIFS_LARGE_BUFFER) | |
1057 | *pbuf_type = CIFS_LARGE_BUFFER; | |
6cec2aed | 1058 | } /* else no valid buffer on return - leave as null */ |
ec637e3f SF |
1059 | |
1060 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
1da177e4 LT |
1061 | since file handle passed in no longer valid */ |
1062 | return rc; | |
1063 | } | |
1064 | ||
ec637e3f | 1065 | |
1da177e4 LT |
1066 | int |
1067 | CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon, | |
1068 | const int netfid, const unsigned int count, | |
1069 | const __u64 offset, unsigned int *nbytes, const char *buf, | |
1070 | const char __user * ubuf, const int long_op) | |
1071 | { | |
1072 | int rc = -EACCES; | |
1073 | WRITE_REQ *pSMB = NULL; | |
1074 | WRITE_RSP *pSMBr = NULL; | |
1c955187 | 1075 | int bytes_returned, wct; |
1da177e4 LT |
1076 | __u32 bytes_sent; |
1077 | __u16 byte_count; | |
1078 | ||
1079 | /* cFYI(1,("write at %lld %d bytes",offset,count));*/ | |
1c955187 SF |
1080 | if(tcon->ses == NULL) |
1081 | return -ECONNABORTED; | |
1082 | ||
1083 | if(tcon->ses->capabilities & CAP_LARGE_FILES) | |
1084 | wct = 14; | |
1085 | else | |
1086 | wct = 12; | |
1087 | ||
1088 | rc = smb_init(SMB_COM_WRITE_ANDX, wct, tcon, (void **) &pSMB, | |
1da177e4 LT |
1089 | (void **) &pSMBr); |
1090 | if (rc) | |
1091 | return rc; | |
1092 | /* tcon and ses pointer are checked in smb_init */ | |
1093 | if (tcon->ses->server == NULL) | |
1094 | return -ECONNABORTED; | |
1095 | ||
1096 | pSMB->AndXCommand = 0xFF; /* none */ | |
1097 | pSMB->Fid = netfid; | |
1098 | pSMB->OffsetLow = cpu_to_le32(offset & 0xFFFFFFFF); | |
1c955187 SF |
1099 | if(wct == 14) |
1100 | pSMB->OffsetHigh = cpu_to_le32(offset >> 32); | |
1101 | else if((offset >> 32) > 0) /* can not handle this big offset for old */ | |
1102 | return -EIO; | |
1103 | ||
1da177e4 LT |
1104 | pSMB->Reserved = 0xFFFFFFFF; |
1105 | pSMB->WriteMode = 0; | |
1106 | pSMB->Remaining = 0; | |
1107 | ||
1108 | /* Can increase buffer size if buffer is big enough in some cases - ie we | |
1109 | can send more if LARGE_WRITE_X capability returned by the server and if | |
1110 | our buffer is big enough or if we convert to iovecs on socket writes | |
1111 | and eliminate the copy to the CIFS buffer */ | |
1112 | if(tcon->ses->capabilities & CAP_LARGE_WRITE_X) { | |
1113 | bytes_sent = min_t(const unsigned int, CIFSMaxBufSize, count); | |
1114 | } else { | |
1115 | bytes_sent = (tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) | |
1116 | & ~0xFF; | |
1117 | } | |
1118 | ||
1119 | if (bytes_sent > count) | |
1120 | bytes_sent = count; | |
1121 | pSMB->DataOffset = | |
e30dcf3a | 1122 | cpu_to_le16(offsetof(struct smb_com_write_req,Data) - 4); |
1da177e4 LT |
1123 | if(buf) |
1124 | memcpy(pSMB->Data,buf,bytes_sent); | |
1125 | else if(ubuf) { | |
1126 | if(copy_from_user(pSMB->Data,ubuf,bytes_sent)) { | |
1127 | cifs_buf_release(pSMB); | |
1128 | return -EFAULT; | |
1129 | } | |
e30dcf3a | 1130 | } else if (count != 0) { |
1da177e4 LT |
1131 | /* No buffer */ |
1132 | cifs_buf_release(pSMB); | |
1133 | return -EINVAL; | |
e30dcf3a SF |
1134 | } /* else setting file size with write of zero bytes */ |
1135 | if(wct == 14) | |
1136 | byte_count = bytes_sent + 1; /* pad */ | |
1137 | else /* wct == 12 */ { | |
1138 | byte_count = bytes_sent + 5; /* bigger pad, smaller smb hdr */ | |
1da177e4 | 1139 | } |
1da177e4 LT |
1140 | pSMB->DataLengthLow = cpu_to_le16(bytes_sent & 0xFFFF); |
1141 | pSMB->DataLengthHigh = cpu_to_le16(bytes_sent >> 16); | |
e30dcf3a | 1142 | pSMB->hdr.smb_buf_length += byte_count; |
1c955187 SF |
1143 | |
1144 | if(wct == 14) | |
1145 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
e30dcf3a | 1146 | else { /* old style write has byte count 4 bytes earlier so 4 bytes pad */ |
1c955187 SF |
1147 | struct smb_com_writex_req * pSMBW = |
1148 | (struct smb_com_writex_req *)pSMB; | |
1149 | pSMBW->ByteCount = cpu_to_le16(byte_count); | |
1150 | } | |
1da177e4 LT |
1151 | |
1152 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1153 | (struct smb_hdr *) pSMBr, &bytes_returned, long_op); | |
a4544347 | 1154 | cifs_stats_inc(&tcon->num_writes); |
1da177e4 LT |
1155 | if (rc) { |
1156 | cFYI(1, ("Send error in write = %d", rc)); | |
1157 | *nbytes = 0; | |
1158 | } else { | |
1159 | *nbytes = le16_to_cpu(pSMBr->CountHigh); | |
1160 | *nbytes = (*nbytes) << 16; | |
1161 | *nbytes += le16_to_cpu(pSMBr->Count); | |
1162 | } | |
1163 | ||
1164 | cifs_buf_release(pSMB); | |
1165 | ||
1166 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
1167 | since file handle passed in no longer valid */ | |
1168 | ||
1169 | return rc; | |
1170 | } | |
1171 | ||
d6e04ae6 SF |
1172 | int |
1173 | CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon, | |
1da177e4 | 1174 | const int netfid, const unsigned int count, |
3e84469d SF |
1175 | const __u64 offset, unsigned int *nbytes, struct kvec *iov, |
1176 | int n_vec, const int long_op) | |
1da177e4 LT |
1177 | { |
1178 | int rc = -EACCES; | |
1179 | WRITE_REQ *pSMB = NULL; | |
ec637e3f | 1180 | int wct; |
d6e04ae6 | 1181 | int smb_hdr_len; |
ec637e3f | 1182 | int resp_buf_type = 0; |
1da177e4 | 1183 | |
ff7feac9 SF |
1184 | cFYI(1,("write2 at %lld %d bytes", (long long)offset, count)); |
1185 | ||
8cc64c6e SF |
1186 | if(tcon->ses->capabilities & CAP_LARGE_FILES) |
1187 | wct = 14; | |
1188 | else | |
1189 | wct = 12; | |
1190 | rc = small_smb_init(SMB_COM_WRITE_ANDX, wct, tcon, (void **) &pSMB); | |
1da177e4 LT |
1191 | if (rc) |
1192 | return rc; | |
1da177e4 LT |
1193 | /* tcon and ses pointer are checked in smb_init */ |
1194 | if (tcon->ses->server == NULL) | |
1195 | return -ECONNABORTED; | |
1196 | ||
d6e04ae6 | 1197 | pSMB->AndXCommand = 0xFF; /* none */ |
1da177e4 LT |
1198 | pSMB->Fid = netfid; |
1199 | pSMB->OffsetLow = cpu_to_le32(offset & 0xFFFFFFFF); | |
8cc64c6e SF |
1200 | if(wct == 14) |
1201 | pSMB->OffsetHigh = cpu_to_le32(offset >> 32); | |
1202 | else if((offset >> 32) > 0) /* can not handle this big offset for old */ | |
1203 | return -EIO; | |
1da177e4 LT |
1204 | pSMB->Reserved = 0xFFFFFFFF; |
1205 | pSMB->WriteMode = 0; | |
1206 | pSMB->Remaining = 0; | |
d6e04ae6 | 1207 | |
1da177e4 LT |
1208 | pSMB->DataOffset = |
1209 | cpu_to_le16(offsetof(struct smb_com_write_req,Data) - 4); | |
1210 | ||
3e84469d SF |
1211 | pSMB->DataLengthLow = cpu_to_le16(count & 0xFFFF); |
1212 | pSMB->DataLengthHigh = cpu_to_le16(count >> 16); | |
d6e04ae6 | 1213 | smb_hdr_len = pSMB->hdr.smb_buf_length + 1; /* hdr + 1 byte pad */ |
8cc64c6e SF |
1214 | if(wct == 14) |
1215 | pSMB->hdr.smb_buf_length += count+1; | |
1216 | else /* wct == 12 */ | |
1217 | pSMB->hdr.smb_buf_length += count+5; /* smb data starts later */ | |
1218 | if(wct == 14) | |
1219 | pSMB->ByteCount = cpu_to_le16(count + 1); | |
1220 | else /* wct == 12 */ /* bigger pad, smaller smb hdr, keep offset ok */ { | |
1221 | struct smb_com_writex_req * pSMBW = | |
1222 | (struct smb_com_writex_req *)pSMB; | |
1223 | pSMBW->ByteCount = cpu_to_le16(count + 5); | |
1224 | } | |
3e84469d | 1225 | iov[0].iov_base = pSMB; |
ec637e3f SF |
1226 | if(wct == 14) |
1227 | iov[0].iov_len = smb_hdr_len + 4; | |
1228 | else /* wct == 12 pad bigger by four bytes */ | |
1229 | iov[0].iov_len = smb_hdr_len + 8; | |
1230 | ||
1da177e4 | 1231 | |
ec637e3f | 1232 | rc = SendReceive2(xid, tcon->ses, iov, n_vec + 1, &resp_buf_type, |
3e84469d | 1233 | long_op); |
a4544347 | 1234 | cifs_stats_inc(&tcon->num_writes); |
1da177e4 | 1235 | if (rc) { |
8cc64c6e | 1236 | cFYI(1, ("Send error Write2 = %d", rc)); |
1da177e4 | 1237 | *nbytes = 0; |
ec637e3f SF |
1238 | } else if(resp_buf_type == 0) { |
1239 | /* presumably this can not happen, but best to be safe */ | |
1240 | rc = -EIO; | |
1241 | *nbytes = 0; | |
d6e04ae6 | 1242 | } else { |
ec637e3f | 1243 | WRITE_RSP * pSMBr = (WRITE_RSP *)iov[0].iov_base; |
d6e04ae6 SF |
1244 | *nbytes = le16_to_cpu(pSMBr->CountHigh); |
1245 | *nbytes = (*nbytes) << 16; | |
1246 | *nbytes += le16_to_cpu(pSMBr->Count); | |
84afc29b | 1247 | } |
1da177e4 LT |
1248 | |
1249 | cifs_small_buf_release(pSMB); | |
ec637e3f SF |
1250 | if(resp_buf_type == CIFS_SMALL_BUFFER) |
1251 | cifs_small_buf_release(iov[0].iov_base); | |
1252 | else if(resp_buf_type == CIFS_LARGE_BUFFER) | |
1253 | cifs_buf_release(iov[0].iov_base); | |
1da177e4 LT |
1254 | |
1255 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
1256 | since file handle passed in no longer valid */ | |
1257 | ||
1258 | return rc; | |
1259 | } | |
d6e04ae6 SF |
1260 | |
1261 | ||
1da177e4 LT |
1262 | int |
1263 | CIFSSMBLock(const int xid, struct cifsTconInfo *tcon, | |
1264 | const __u16 smb_file_id, const __u64 len, | |
1265 | const __u64 offset, const __u32 numUnlock, | |
1266 | const __u32 numLock, const __u8 lockType, const int waitFlag) | |
1267 | { | |
1268 | int rc = 0; | |
1269 | LOCK_REQ *pSMB = NULL; | |
1270 | LOCK_RSP *pSMBr = NULL; | |
1271 | int bytes_returned; | |
1272 | int timeout = 0; | |
1273 | __u16 count; | |
1274 | ||
1275 | cFYI(1, ("In CIFSSMBLock - timeout %d numLock %d",waitFlag,numLock)); | |
46810cbf SF |
1276 | rc = small_smb_init(SMB_COM_LOCKING_ANDX, 8, tcon, (void **) &pSMB); |
1277 | ||
1da177e4 LT |
1278 | if (rc) |
1279 | return rc; | |
1280 | ||
46810cbf SF |
1281 | pSMBr = (LOCK_RSP *)pSMB; /* BB removeme BB */ |
1282 | ||
1da177e4 LT |
1283 | if(lockType == LOCKING_ANDX_OPLOCK_RELEASE) { |
1284 | timeout = -1; /* no response expected */ | |
1285 | pSMB->Timeout = 0; | |
1286 | } else if (waitFlag == TRUE) { | |
1287 | timeout = 3; /* blocking operation, no timeout */ | |
1288 | pSMB->Timeout = cpu_to_le32(-1);/* blocking - do not time out */ | |
1289 | } else { | |
1290 | pSMB->Timeout = 0; | |
1291 | } | |
1292 | ||
1293 | pSMB->NumberOfLocks = cpu_to_le16(numLock); | |
1294 | pSMB->NumberOfUnlocks = cpu_to_le16(numUnlock); | |
1295 | pSMB->LockType = lockType; | |
1296 | pSMB->AndXCommand = 0xFF; /* none */ | |
1297 | pSMB->Fid = smb_file_id; /* netfid stays le */ | |
1298 | ||
1299 | if((numLock != 0) || (numUnlock != 0)) { | |
1300 | pSMB->Locks[0].Pid = cpu_to_le16(current->tgid); | |
1301 | /* BB where to store pid high? */ | |
1302 | pSMB->Locks[0].LengthLow = cpu_to_le32((u32)len); | |
1303 | pSMB->Locks[0].LengthHigh = cpu_to_le32((u32)(len>>32)); | |
1304 | pSMB->Locks[0].OffsetLow = cpu_to_le32((u32)offset); | |
1305 | pSMB->Locks[0].OffsetHigh = cpu_to_le32((u32)(offset>>32)); | |
1306 | count = sizeof(LOCKING_ANDX_RANGE); | |
1307 | } else { | |
1308 | /* oplock break */ | |
1309 | count = 0; | |
1310 | } | |
1311 | pSMB->hdr.smb_buf_length += count; | |
1312 | pSMB->ByteCount = cpu_to_le16(count); | |
1313 | ||
1314 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1315 | (struct smb_hdr *) pSMBr, &bytes_returned, timeout); | |
a4544347 | 1316 | cifs_stats_inc(&tcon->num_locks); |
1da177e4 LT |
1317 | if (rc) { |
1318 | cFYI(1, ("Send error in Lock = %d", rc)); | |
1319 | } | |
46810cbf | 1320 | cifs_small_buf_release(pSMB); |
1da177e4 LT |
1321 | |
1322 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
1323 | since file handle passed in no longer valid */ | |
1324 | return rc; | |
1325 | } | |
1326 | ||
1327 | int | |
1328 | CIFSSMBClose(const int xid, struct cifsTconInfo *tcon, int smb_file_id) | |
1329 | { | |
1330 | int rc = 0; | |
1331 | CLOSE_REQ *pSMB = NULL; | |
1332 | CLOSE_RSP *pSMBr = NULL; | |
1333 | int bytes_returned; | |
1334 | cFYI(1, ("In CIFSSMBClose")); | |
1335 | ||
1336 | /* do not retry on dead session on close */ | |
1337 | rc = small_smb_init(SMB_COM_CLOSE, 3, tcon, (void **) &pSMB); | |
1338 | if(rc == -EAGAIN) | |
1339 | return 0; | |
1340 | if (rc) | |
1341 | return rc; | |
1342 | ||
1343 | pSMBr = (CLOSE_RSP *)pSMB; /* BB removeme BB */ | |
1344 | ||
1345 | pSMB->FileID = (__u16) smb_file_id; | |
1346 | pSMB->LastWriteTime = 0; | |
1347 | pSMB->ByteCount = 0; | |
1348 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1349 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 1350 | cifs_stats_inc(&tcon->num_closes); |
1da177e4 LT |
1351 | if (rc) { |
1352 | if(rc!=-EINTR) { | |
1353 | /* EINTR is expected when user ctl-c to kill app */ | |
1354 | cERROR(1, ("Send error in Close = %d", rc)); | |
1355 | } | |
1356 | } | |
1357 | ||
1358 | cifs_small_buf_release(pSMB); | |
1359 | ||
1360 | /* Since session is dead, file will be closed on server already */ | |
1361 | if(rc == -EAGAIN) | |
1362 | rc = 0; | |
1363 | ||
1364 | return rc; | |
1365 | } | |
1366 | ||
1367 | int | |
1368 | CIFSSMBRename(const int xid, struct cifsTconInfo *tcon, | |
1369 | const char *fromName, const char *toName, | |
737b758c | 1370 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
1371 | { |
1372 | int rc = 0; | |
1373 | RENAME_REQ *pSMB = NULL; | |
1374 | RENAME_RSP *pSMBr = NULL; | |
1375 | int bytes_returned; | |
1376 | int name_len, name_len2; | |
1377 | __u16 count; | |
1378 | ||
1379 | cFYI(1, ("In CIFSSMBRename")); | |
1380 | renameRetry: | |
1381 | rc = smb_init(SMB_COM_RENAME, 1, tcon, (void **) &pSMB, | |
1382 | (void **) &pSMBr); | |
1383 | if (rc) | |
1384 | return rc; | |
1385 | ||
1386 | pSMB->BufferFormat = 0x04; | |
1387 | pSMB->SearchAttributes = | |
1388 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | | |
1389 | ATTR_DIRECTORY); | |
1390 | ||
1391 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1392 | name_len = | |
b1a45695 | 1393 | cifsConvertToUCS((__le16 *) pSMB->OldFileName, fromName, |
737b758c | 1394 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1395 | name_len++; /* trailing null */ |
1396 | name_len *= 2; | |
1397 | pSMB->OldFileName[name_len] = 0x04; /* pad */ | |
1398 | /* protocol requires ASCII signature byte on Unicode string */ | |
1399 | pSMB->OldFileName[name_len + 1] = 0x00; | |
1400 | name_len2 = | |
b1a45695 | 1401 | cifsConvertToUCS((__le16 *) &pSMB->OldFileName[name_len + 2], |
737b758c | 1402 | toName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1403 | name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; |
1404 | name_len2 *= 2; /* convert to bytes */ | |
1405 | } else { /* BB improve the check for buffer overruns BB */ | |
1406 | name_len = strnlen(fromName, PATH_MAX); | |
1407 | name_len++; /* trailing null */ | |
1408 | strncpy(pSMB->OldFileName, fromName, name_len); | |
1409 | name_len2 = strnlen(toName, PATH_MAX); | |
1410 | name_len2++; /* trailing null */ | |
1411 | pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */ | |
1412 | strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2); | |
1413 | name_len2++; /* trailing null */ | |
1414 | name_len2++; /* signature byte */ | |
1415 | } | |
1416 | ||
1417 | count = 1 /* 1st signature byte */ + name_len + name_len2; | |
1418 | pSMB->hdr.smb_buf_length += count; | |
1419 | pSMB->ByteCount = cpu_to_le16(count); | |
1420 | ||
1421 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1422 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 1423 | cifs_stats_inc(&tcon->num_renames); |
1da177e4 LT |
1424 | if (rc) { |
1425 | cFYI(1, ("Send error in rename = %d", rc)); | |
1426 | } | |
1427 | ||
1da177e4 LT |
1428 | cifs_buf_release(pSMB); |
1429 | ||
1430 | if (rc == -EAGAIN) | |
1431 | goto renameRetry; | |
1432 | ||
1433 | return rc; | |
1434 | } | |
1435 | ||
1436 | int CIFSSMBRenameOpenFile(const int xid,struct cifsTconInfo *pTcon, | |
737b758c SF |
1437 | int netfid, char * target_name, |
1438 | const struct nls_table * nls_codepage, int remap) | |
1da177e4 LT |
1439 | { |
1440 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
1441 | struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; | |
1442 | struct set_file_rename * rename_info; | |
1443 | char *data_offset; | |
1444 | char dummy_string[30]; | |
1445 | int rc = 0; | |
1446 | int bytes_returned = 0; | |
1447 | int len_of_str; | |
1448 | __u16 params, param_offset, offset, count, byte_count; | |
1449 | ||
1450 | cFYI(1, ("Rename to File by handle")); | |
1451 | rc = smb_init(SMB_COM_TRANSACTION2, 15, pTcon, (void **) &pSMB, | |
1452 | (void **) &pSMBr); | |
1453 | if (rc) | |
1454 | return rc; | |
1455 | ||
1456 | params = 6; | |
1457 | pSMB->MaxSetupCount = 0; | |
1458 | pSMB->Reserved = 0; | |
1459 | pSMB->Flags = 0; | |
1460 | pSMB->Timeout = 0; | |
1461 | pSMB->Reserved2 = 0; | |
1462 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
1463 | offset = param_offset + params; | |
1464 | ||
1465 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
1466 | rename_info = (struct set_file_rename *) data_offset; | |
1467 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
1468 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB PDU from sess */ | |
1469 | pSMB->SetupCount = 1; | |
1470 | pSMB->Reserved3 = 0; | |
1471 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
1472 | byte_count = 3 /* pad */ + params; | |
1473 | pSMB->ParameterCount = cpu_to_le16(params); | |
1474 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
1475 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
1476 | pSMB->DataOffset = cpu_to_le16(offset); | |
1477 | /* construct random name ".cifs_tmp<inodenum><mid>" */ | |
1478 | rename_info->overwrite = cpu_to_le32(1); | |
1479 | rename_info->root_fid = 0; | |
1480 | /* unicode only call */ | |
1481 | if(target_name == NULL) { | |
1482 | sprintf(dummy_string,"cifs%x",pSMB->hdr.Mid); | |
b1a45695 | 1483 | len_of_str = cifsConvertToUCS((__le16 *)rename_info->target_name, |
737b758c | 1484 | dummy_string, 24, nls_codepage, remap); |
1da177e4 | 1485 | } else { |
b1a45695 | 1486 | len_of_str = cifsConvertToUCS((__le16 *)rename_info->target_name, |
737b758c | 1487 | target_name, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1488 | } |
1489 | rename_info->target_name_len = cpu_to_le32(2 * len_of_str); | |
1490 | count = 12 /* sizeof(struct set_file_rename) */ + (2 * len_of_str) + 2; | |
1491 | byte_count += count; | |
1492 | pSMB->DataCount = cpu_to_le16(count); | |
1493 | pSMB->TotalDataCount = pSMB->DataCount; | |
1494 | pSMB->Fid = netfid; | |
1495 | pSMB->InformationLevel = | |
1496 | cpu_to_le16(SMB_SET_FILE_RENAME_INFORMATION); | |
1497 | pSMB->Reserved4 = 0; | |
1498 | pSMB->hdr.smb_buf_length += byte_count; | |
1499 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
1500 | rc = SendReceive(xid, pTcon->ses, (struct smb_hdr *) pSMB, | |
1501 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 1502 | cifs_stats_inc(&pTcon->num_t2renames); |
1da177e4 LT |
1503 | if (rc) { |
1504 | cFYI(1,("Send error in Rename (by file handle) = %d", rc)); | |
1505 | } | |
a5a2b489 | 1506 | |
1da177e4 LT |
1507 | cifs_buf_release(pSMB); |
1508 | ||
1509 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
1510 | since file handle passed in no longer valid */ | |
1511 | ||
1512 | return rc; | |
1513 | } | |
1514 | ||
1515 | int | |
1516 | CIFSSMBCopy(const int xid, struct cifsTconInfo *tcon, const char * fromName, | |
1517 | const __u16 target_tid, const char *toName, const int flags, | |
737b758c | 1518 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
1519 | { |
1520 | int rc = 0; | |
1521 | COPY_REQ *pSMB = NULL; | |
1522 | COPY_RSP *pSMBr = NULL; | |
1523 | int bytes_returned; | |
1524 | int name_len, name_len2; | |
1525 | __u16 count; | |
1526 | ||
1527 | cFYI(1, ("In CIFSSMBCopy")); | |
1528 | copyRetry: | |
1529 | rc = smb_init(SMB_COM_COPY, 1, tcon, (void **) &pSMB, | |
1530 | (void **) &pSMBr); | |
1531 | if (rc) | |
1532 | return rc; | |
1533 | ||
1534 | pSMB->BufferFormat = 0x04; | |
1535 | pSMB->Tid2 = target_tid; | |
1536 | ||
1537 | pSMB->Flags = cpu_to_le16(flags & COPY_TREE); | |
1538 | ||
1539 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
b1a45695 | 1540 | name_len = cifsConvertToUCS((__le16 *) pSMB->OldFileName, |
737b758c SF |
1541 | fromName, PATH_MAX, nls_codepage, |
1542 | remap); | |
1da177e4 LT |
1543 | name_len++; /* trailing null */ |
1544 | name_len *= 2; | |
1545 | pSMB->OldFileName[name_len] = 0x04; /* pad */ | |
1546 | /* protocol requires ASCII signature byte on Unicode string */ | |
1547 | pSMB->OldFileName[name_len + 1] = 0x00; | |
b1a45695 | 1548 | name_len2 = cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2], |
737b758c | 1549 | toName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1550 | name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; |
1551 | name_len2 *= 2; /* convert to bytes */ | |
1552 | } else { /* BB improve the check for buffer overruns BB */ | |
1553 | name_len = strnlen(fromName, PATH_MAX); | |
1554 | name_len++; /* trailing null */ | |
1555 | strncpy(pSMB->OldFileName, fromName, name_len); | |
1556 | name_len2 = strnlen(toName, PATH_MAX); | |
1557 | name_len2++; /* trailing null */ | |
1558 | pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */ | |
1559 | strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2); | |
1560 | name_len2++; /* trailing null */ | |
1561 | name_len2++; /* signature byte */ | |
1562 | } | |
1563 | ||
1564 | count = 1 /* 1st signature byte */ + name_len + name_len2; | |
1565 | pSMB->hdr.smb_buf_length += count; | |
1566 | pSMB->ByteCount = cpu_to_le16(count); | |
1567 | ||
1568 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1569 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
1570 | if (rc) { | |
1571 | cFYI(1, ("Send error in copy = %d with %d files copied", | |
1572 | rc, le16_to_cpu(pSMBr->CopyCount))); | |
1573 | } | |
1574 | if (pSMB) | |
1575 | cifs_buf_release(pSMB); | |
1576 | ||
1577 | if (rc == -EAGAIN) | |
1578 | goto copyRetry; | |
1579 | ||
1580 | return rc; | |
1581 | } | |
1582 | ||
1583 | int | |
1584 | CIFSUnixCreateSymLink(const int xid, struct cifsTconInfo *tcon, | |
1585 | const char *fromName, const char *toName, | |
1586 | const struct nls_table *nls_codepage) | |
1587 | { | |
1588 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
1589 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
1590 | char *data_offset; | |
1591 | int name_len; | |
1592 | int name_len_target; | |
1593 | int rc = 0; | |
1594 | int bytes_returned = 0; | |
1595 | __u16 params, param_offset, offset, byte_count; | |
1596 | ||
1597 | cFYI(1, ("In Symlink Unix style")); | |
1598 | createSymLinkRetry: | |
1599 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
1600 | (void **) &pSMBr); | |
1601 | if (rc) | |
1602 | return rc; | |
1603 | ||
1604 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1605 | name_len = | |
e89dc920 | 1606 | cifs_strtoUCS((__le16 *) pSMB->FileName, fromName, PATH_MAX |
1da177e4 LT |
1607 | /* find define for this maxpathcomponent */ |
1608 | , nls_codepage); | |
1609 | name_len++; /* trailing null */ | |
1610 | name_len *= 2; | |
1611 | ||
1612 | } else { /* BB improve the check for buffer overruns BB */ | |
1613 | name_len = strnlen(fromName, PATH_MAX); | |
1614 | name_len++; /* trailing null */ | |
1615 | strncpy(pSMB->FileName, fromName, name_len); | |
1616 | } | |
1617 | params = 6 + name_len; | |
1618 | pSMB->MaxSetupCount = 0; | |
1619 | pSMB->Reserved = 0; | |
1620 | pSMB->Flags = 0; | |
1621 | pSMB->Timeout = 0; | |
1622 | pSMB->Reserved2 = 0; | |
1623 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
1624 | InformationLevel) - 4; | |
1625 | offset = param_offset + params; | |
1626 | ||
1627 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
1628 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1629 | name_len_target = | |
e89dc920 | 1630 | cifs_strtoUCS((__le16 *) data_offset, toName, PATH_MAX |
1da177e4 LT |
1631 | /* find define for this maxpathcomponent */ |
1632 | , nls_codepage); | |
1633 | name_len_target++; /* trailing null */ | |
1634 | name_len_target *= 2; | |
1635 | } else { /* BB improve the check for buffer overruns BB */ | |
1636 | name_len_target = strnlen(toName, PATH_MAX); | |
1637 | name_len_target++; /* trailing null */ | |
1638 | strncpy(data_offset, toName, name_len_target); | |
1639 | } | |
1640 | ||
1641 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
1642 | /* BB find exact max on data count below from sess */ | |
1643 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1644 | pSMB->SetupCount = 1; | |
1645 | pSMB->Reserved3 = 0; | |
1646 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
1647 | byte_count = 3 /* pad */ + params + name_len_target; | |
1648 | pSMB->DataCount = cpu_to_le16(name_len_target); | |
1649 | pSMB->ParameterCount = cpu_to_le16(params); | |
1650 | pSMB->TotalDataCount = pSMB->DataCount; | |
1651 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
1652 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
1653 | pSMB->DataOffset = cpu_to_le16(offset); | |
1654 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_LINK); | |
1655 | pSMB->Reserved4 = 0; | |
1656 | pSMB->hdr.smb_buf_length += byte_count; | |
1657 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
1658 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1659 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 1660 | cifs_stats_inc(&tcon->num_symlinks); |
1da177e4 LT |
1661 | if (rc) { |
1662 | cFYI(1, | |
1663 | ("Send error in SetPathInfo (create symlink) = %d", | |
1664 | rc)); | |
1665 | } | |
1666 | ||
1667 | if (pSMB) | |
1668 | cifs_buf_release(pSMB); | |
1669 | ||
1670 | if (rc == -EAGAIN) | |
1671 | goto createSymLinkRetry; | |
1672 | ||
1673 | return rc; | |
1674 | } | |
1675 | ||
1676 | int | |
1677 | CIFSUnixCreateHardLink(const int xid, struct cifsTconInfo *tcon, | |
1678 | const char *fromName, const char *toName, | |
737b758c | 1679 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
1680 | { |
1681 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
1682 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
1683 | char *data_offset; | |
1684 | int name_len; | |
1685 | int name_len_target; | |
1686 | int rc = 0; | |
1687 | int bytes_returned = 0; | |
1688 | __u16 params, param_offset, offset, byte_count; | |
1689 | ||
1690 | cFYI(1, ("In Create Hard link Unix style")); | |
1691 | createHardLinkRetry: | |
1692 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
1693 | (void **) &pSMBr); | |
1694 | if (rc) | |
1695 | return rc; | |
1696 | ||
1697 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
b1a45695 | 1698 | name_len = cifsConvertToUCS((__le16 *) pSMB->FileName, toName, |
737b758c | 1699 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1700 | name_len++; /* trailing null */ |
1701 | name_len *= 2; | |
1702 | ||
1703 | } else { /* BB improve the check for buffer overruns BB */ | |
1704 | name_len = strnlen(toName, PATH_MAX); | |
1705 | name_len++; /* trailing null */ | |
1706 | strncpy(pSMB->FileName, toName, name_len); | |
1707 | } | |
1708 | params = 6 + name_len; | |
1709 | pSMB->MaxSetupCount = 0; | |
1710 | pSMB->Reserved = 0; | |
1711 | pSMB->Flags = 0; | |
1712 | pSMB->Timeout = 0; | |
1713 | pSMB->Reserved2 = 0; | |
1714 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
1715 | InformationLevel) - 4; | |
1716 | offset = param_offset + params; | |
1717 | ||
1718 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
1719 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1720 | name_len_target = | |
b1a45695 | 1721 | cifsConvertToUCS((__le16 *) data_offset, fromName, PATH_MAX, |
737b758c | 1722 | nls_codepage, remap); |
1da177e4 LT |
1723 | name_len_target++; /* trailing null */ |
1724 | name_len_target *= 2; | |
1725 | } else { /* BB improve the check for buffer overruns BB */ | |
1726 | name_len_target = strnlen(fromName, PATH_MAX); | |
1727 | name_len_target++; /* trailing null */ | |
1728 | strncpy(data_offset, fromName, name_len_target); | |
1729 | } | |
1730 | ||
1731 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
1732 | /* BB find exact max on data count below from sess*/ | |
1733 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1734 | pSMB->SetupCount = 1; | |
1735 | pSMB->Reserved3 = 0; | |
1736 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
1737 | byte_count = 3 /* pad */ + params + name_len_target; | |
1738 | pSMB->ParameterCount = cpu_to_le16(params); | |
1739 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
1740 | pSMB->DataCount = cpu_to_le16(name_len_target); | |
1741 | pSMB->TotalDataCount = pSMB->DataCount; | |
1742 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
1743 | pSMB->DataOffset = cpu_to_le16(offset); | |
1744 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_HLINK); | |
1745 | pSMB->Reserved4 = 0; | |
1746 | pSMB->hdr.smb_buf_length += byte_count; | |
1747 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
1748 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1749 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 1750 | cifs_stats_inc(&tcon->num_hardlinks); |
1da177e4 LT |
1751 | if (rc) { |
1752 | cFYI(1, ("Send error in SetPathInfo (hard link) = %d", rc)); | |
1753 | } | |
1754 | ||
1755 | cifs_buf_release(pSMB); | |
1756 | if (rc == -EAGAIN) | |
1757 | goto createHardLinkRetry; | |
1758 | ||
1759 | return rc; | |
1760 | } | |
1761 | ||
1762 | int | |
1763 | CIFSCreateHardLink(const int xid, struct cifsTconInfo *tcon, | |
1764 | const char *fromName, const char *toName, | |
737b758c | 1765 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
1766 | { |
1767 | int rc = 0; | |
1768 | NT_RENAME_REQ *pSMB = NULL; | |
1769 | RENAME_RSP *pSMBr = NULL; | |
1770 | int bytes_returned; | |
1771 | int name_len, name_len2; | |
1772 | __u16 count; | |
1773 | ||
1774 | cFYI(1, ("In CIFSCreateHardLink")); | |
1775 | winCreateHardLinkRetry: | |
1776 | ||
1777 | rc = smb_init(SMB_COM_NT_RENAME, 4, tcon, (void **) &pSMB, | |
1778 | (void **) &pSMBr); | |
1779 | if (rc) | |
1780 | return rc; | |
1781 | ||
1782 | pSMB->SearchAttributes = | |
1783 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | | |
1784 | ATTR_DIRECTORY); | |
1785 | pSMB->Flags = cpu_to_le16(CREATE_HARD_LINK); | |
1786 | pSMB->ClusterCount = 0; | |
1787 | ||
1788 | pSMB->BufferFormat = 0x04; | |
1789 | ||
1790 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1791 | name_len = | |
b1a45695 | 1792 | cifsConvertToUCS((__le16 *) pSMB->OldFileName, fromName, |
737b758c | 1793 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1794 | name_len++; /* trailing null */ |
1795 | name_len *= 2; | |
1796 | pSMB->OldFileName[name_len] = 0; /* pad */ | |
1797 | pSMB->OldFileName[name_len + 1] = 0x04; | |
1798 | name_len2 = | |
b1a45695 | 1799 | cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2], |
737b758c | 1800 | toName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1801 | name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; |
1802 | name_len2 *= 2; /* convert to bytes */ | |
1803 | } else { /* BB improve the check for buffer overruns BB */ | |
1804 | name_len = strnlen(fromName, PATH_MAX); | |
1805 | name_len++; /* trailing null */ | |
1806 | strncpy(pSMB->OldFileName, fromName, name_len); | |
1807 | name_len2 = strnlen(toName, PATH_MAX); | |
1808 | name_len2++; /* trailing null */ | |
1809 | pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */ | |
1810 | strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2); | |
1811 | name_len2++; /* trailing null */ | |
1812 | name_len2++; /* signature byte */ | |
1813 | } | |
1814 | ||
1815 | count = 1 /* string type byte */ + name_len + name_len2; | |
1816 | pSMB->hdr.smb_buf_length += count; | |
1817 | pSMB->ByteCount = cpu_to_le16(count); | |
1818 | ||
1819 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1820 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 1821 | cifs_stats_inc(&tcon->num_hardlinks); |
1da177e4 LT |
1822 | if (rc) { |
1823 | cFYI(1, ("Send error in hard link (NT rename) = %d", rc)); | |
1824 | } | |
1825 | cifs_buf_release(pSMB); | |
1826 | if (rc == -EAGAIN) | |
1827 | goto winCreateHardLinkRetry; | |
1828 | ||
1829 | return rc; | |
1830 | } | |
1831 | ||
1832 | int | |
1833 | CIFSSMBUnixQuerySymLink(const int xid, struct cifsTconInfo *tcon, | |
1834 | const unsigned char *searchName, | |
1835 | char *symlinkinfo, const int buflen, | |
1836 | const struct nls_table *nls_codepage) | |
1837 | { | |
1838 | /* SMB_QUERY_FILE_UNIX_LINK */ | |
1839 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
1840 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
1841 | int rc = 0; | |
1842 | int bytes_returned; | |
1843 | int name_len; | |
1844 | __u16 params, byte_count; | |
1845 | ||
1846 | cFYI(1, ("In QPathSymLinkInfo (Unix) for path %s", searchName)); | |
1847 | ||
1848 | querySymLinkRetry: | |
1849 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
1850 | (void **) &pSMBr); | |
1851 | if (rc) | |
1852 | return rc; | |
1853 | ||
1854 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1855 | name_len = | |
e89dc920 | 1856 | cifs_strtoUCS((__le16 *) pSMB->FileName, searchName, PATH_MAX |
1da177e4 LT |
1857 | /* find define for this maxpathcomponent */ |
1858 | , nls_codepage); | |
1859 | name_len++; /* trailing null */ | |
1860 | name_len *= 2; | |
1861 | } else { /* BB improve the check for buffer overruns BB */ | |
1862 | name_len = strnlen(searchName, PATH_MAX); | |
1863 | name_len++; /* trailing null */ | |
1864 | strncpy(pSMB->FileName, searchName, name_len); | |
1865 | } | |
1866 | ||
1867 | params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ; | |
1868 | pSMB->TotalDataCount = 0; | |
1869 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
1870 | /* BB find exact max data count below from sess structure BB */ | |
1871 | pSMB->MaxDataCount = cpu_to_le16(4000); | |
1872 | pSMB->MaxSetupCount = 0; | |
1873 | pSMB->Reserved = 0; | |
1874 | pSMB->Flags = 0; | |
1875 | pSMB->Timeout = 0; | |
1876 | pSMB->Reserved2 = 0; | |
1877 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
1878 | struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); | |
1879 | pSMB->DataCount = 0; | |
1880 | pSMB->DataOffset = 0; | |
1881 | pSMB->SetupCount = 1; | |
1882 | pSMB->Reserved3 = 0; | |
1883 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
1884 | byte_count = params + 1 /* pad */ ; | |
1885 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
1886 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
1887 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_UNIX_LINK); | |
1888 | pSMB->Reserved4 = 0; | |
1889 | pSMB->hdr.smb_buf_length += byte_count; | |
1890 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
1891 | ||
1892 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1893 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
1894 | if (rc) { | |
1895 | cFYI(1, ("Send error in QuerySymLinkInfo = %d", rc)); | |
1896 | } else { | |
1897 | /* decode response */ | |
1898 | ||
1899 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
1900 | if (rc || (pSMBr->ByteCount < 2)) | |
1901 | /* BB also check enough total bytes returned */ | |
1902 | rc = -EIO; /* bad smb */ | |
1903 | else { | |
1904 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
1905 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); | |
1906 | ||
1907 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1908 | name_len = UniStrnlen((wchar_t *) ((char *) | |
1909 | &pSMBr->hdr.Protocol +data_offset), | |
1910 | min_t(const int, buflen,count) / 2); | |
737b758c | 1911 | /* BB FIXME investigate remapping reserved chars here */ |
1da177e4 | 1912 | cifs_strfromUCS_le(symlinkinfo, |
e89dc920 | 1913 | (__le16 *) ((char *)&pSMBr->hdr.Protocol + |
1da177e4 LT |
1914 | data_offset), |
1915 | name_len, nls_codepage); | |
1916 | } else { | |
1917 | strncpy(symlinkinfo, | |
1918 | (char *) &pSMBr->hdr.Protocol + | |
1919 | data_offset, | |
1920 | min_t(const int, buflen, count)); | |
1921 | } | |
1922 | symlinkinfo[buflen] = 0; | |
1923 | /* just in case so calling code does not go off the end of buffer */ | |
1924 | } | |
1925 | } | |
1926 | cifs_buf_release(pSMB); | |
1927 | if (rc == -EAGAIN) | |
1928 | goto querySymLinkRetry; | |
1929 | return rc; | |
1930 | } | |
1931 | ||
0a4b92c0 SF |
1932 | /* Initialize NT TRANSACT SMB into small smb request buffer. |
1933 | This assumes that all NT TRANSACTS that we init here have | |
1934 | total parm and data under about 400 bytes (to fit in small cifs | |
1935 | buffer size), which is the case so far, it easily fits. NB: | |
1936 | Setup words themselves and ByteCount | |
1937 | MaxSetupCount (size of returned setup area) and | |
1938 | MaxParameterCount (returned parms size) must be set by caller */ | |
1939 | static int | |
1940 | smb_init_ntransact(const __u16 sub_command, const int setup_count, | |
1941 | const int parm_len, struct cifsTconInfo *tcon, | |
1942 | void ** ret_buf) | |
1943 | { | |
1944 | int rc; | |
1945 | __u32 temp_offset; | |
1946 | struct smb_com_ntransact_req * pSMB; | |
1947 | ||
1948 | rc = small_smb_init(SMB_COM_NT_TRANSACT, 19 + setup_count, tcon, | |
1949 | (void **)&pSMB); | |
1950 | if (rc) | |
1951 | return rc; | |
1952 | *ret_buf = (void *)pSMB; | |
1953 | pSMB->Reserved = 0; | |
1954 | pSMB->TotalParameterCount = cpu_to_le32(parm_len); | |
1955 | pSMB->TotalDataCount = 0; | |
1956 | pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf - | |
1957 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
1958 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
1959 | pSMB->DataCount = pSMB->TotalDataCount; | |
1960 | temp_offset = offsetof(struct smb_com_ntransact_req, Parms) + | |
1961 | (setup_count * 2) - 4 /* for rfc1001 length itself */; | |
1962 | pSMB->ParameterOffset = cpu_to_le32(temp_offset); | |
1963 | pSMB->DataOffset = cpu_to_le32(temp_offset + parm_len); | |
1964 | pSMB->SetupCount = setup_count; /* no need to le convert byte fields */ | |
1965 | pSMB->SubCommand = cpu_to_le16(sub_command); | |
1966 | return 0; | |
1967 | } | |
1968 | ||
1969 | static int | |
1970 | validate_ntransact(char * buf, char ** ppparm, char ** ppdata, | |
1971 | int * pdatalen, int * pparmlen) | |
1972 | { | |
1973 | char * end_of_smb; | |
1974 | __u32 data_count, data_offset, parm_count, parm_offset; | |
1975 | struct smb_com_ntransact_rsp * pSMBr; | |
1976 | ||
1977 | if(buf == NULL) | |
1978 | return -EINVAL; | |
1979 | ||
1980 | pSMBr = (struct smb_com_ntransact_rsp *)buf; | |
1981 | ||
1982 | /* ByteCount was converted from little endian in SendReceive */ | |
1983 | end_of_smb = 2 /* sizeof byte count */ + pSMBr->ByteCount + | |
1984 | (char *)&pSMBr->ByteCount; | |
1985 | ||
1986 | ||
1987 | data_offset = le32_to_cpu(pSMBr->DataOffset); | |
1988 | data_count = le32_to_cpu(pSMBr->DataCount); | |
1989 | parm_offset = le32_to_cpu(pSMBr->ParameterOffset); | |
1990 | parm_count = le32_to_cpu(pSMBr->ParameterCount); | |
1991 | ||
1992 | *ppparm = (char *)&pSMBr->hdr.Protocol + parm_offset; | |
1993 | *ppdata = (char *)&pSMBr->hdr.Protocol + data_offset; | |
1994 | ||
1995 | /* should we also check that parm and data areas do not overlap? */ | |
1996 | if(*ppparm > end_of_smb) { | |
1997 | cFYI(1,("parms start after end of smb")); | |
1998 | return -EINVAL; | |
1999 | } else if(parm_count + *ppparm > end_of_smb) { | |
2000 | cFYI(1,("parm end after end of smb")); | |
2001 | return -EINVAL; | |
2002 | } else if(*ppdata > end_of_smb) { | |
2003 | cFYI(1,("data starts after end of smb")); | |
2004 | return -EINVAL; | |
2005 | } else if(data_count + *ppdata > end_of_smb) { | |
2006 | cFYI(1,("data %p + count %d (%p) ends after end of smb %p start %p", | |
2007 | *ppdata, data_count, (data_count + *ppdata), end_of_smb, pSMBr)); /* BB FIXME */ | |
2008 | return -EINVAL; | |
2009 | } else if(parm_count + data_count > pSMBr->ByteCount) { | |
2010 | cFYI(1,("parm count and data count larger than SMB")); | |
2011 | return -EINVAL; | |
2012 | } | |
2013 | return 0; | |
2014 | } | |
2015 | ||
1da177e4 LT |
2016 | int |
2017 | CIFSSMBQueryReparseLinkInfo(const int xid, struct cifsTconInfo *tcon, | |
2018 | const unsigned char *searchName, | |
2019 | char *symlinkinfo, const int buflen,__u16 fid, | |
2020 | const struct nls_table *nls_codepage) | |
2021 | { | |
2022 | int rc = 0; | |
2023 | int bytes_returned; | |
2024 | int name_len; | |
2025 | struct smb_com_transaction_ioctl_req * pSMB; | |
2026 | struct smb_com_transaction_ioctl_rsp * pSMBr; | |
2027 | ||
2028 | cFYI(1, ("In Windows reparse style QueryLink for path %s", searchName)); | |
2029 | rc = smb_init(SMB_COM_NT_TRANSACT, 23, tcon, (void **) &pSMB, | |
2030 | (void **) &pSMBr); | |
2031 | if (rc) | |
2032 | return rc; | |
2033 | ||
2034 | pSMB->TotalParameterCount = 0 ; | |
2035 | pSMB->TotalDataCount = 0; | |
2036 | pSMB->MaxParameterCount = cpu_to_le32(2); | |
2037 | /* BB find exact data count max from sess structure BB */ | |
0a4b92c0 SF |
2038 | pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf - |
2039 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
1da177e4 LT |
2040 | pSMB->MaxSetupCount = 4; |
2041 | pSMB->Reserved = 0; | |
2042 | pSMB->ParameterOffset = 0; | |
2043 | pSMB->DataCount = 0; | |
2044 | pSMB->DataOffset = 0; | |
2045 | pSMB->SetupCount = 4; | |
2046 | pSMB->SubCommand = cpu_to_le16(NT_TRANSACT_IOCTL); | |
2047 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2048 | pSMB->FunctionCode = cpu_to_le32(FSCTL_GET_REPARSE_POINT); | |
2049 | pSMB->IsFsctl = 1; /* FSCTL */ | |
2050 | pSMB->IsRootFlag = 0; | |
2051 | pSMB->Fid = fid; /* file handle always le */ | |
2052 | pSMB->ByteCount = 0; | |
2053 | ||
2054 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2055 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2056 | if (rc) { | |
2057 | cFYI(1, ("Send error in QueryReparseLinkInfo = %d", rc)); | |
2058 | } else { /* decode response */ | |
2059 | __u32 data_offset = le32_to_cpu(pSMBr->DataOffset); | |
2060 | __u32 data_count = le32_to_cpu(pSMBr->DataCount); | |
2061 | if ((pSMBr->ByteCount < 2) || (data_offset > 512)) | |
2062 | /* BB also check enough total bytes returned */ | |
2063 | rc = -EIO; /* bad smb */ | |
2064 | else { | |
2065 | if(data_count && (data_count < 2048)) { | |
0a4b92c0 SF |
2066 | char * end_of_smb = 2 /* sizeof byte count */ + |
2067 | pSMBr->ByteCount + | |
2068 | (char *)&pSMBr->ByteCount; | |
1da177e4 LT |
2069 | |
2070 | struct reparse_data * reparse_buf = (struct reparse_data *) | |
2071 | ((char *)&pSMBr->hdr.Protocol + data_offset); | |
2072 | if((char*)reparse_buf >= end_of_smb) { | |
2073 | rc = -EIO; | |
2074 | goto qreparse_out; | |
2075 | } | |
2076 | if((reparse_buf->LinkNamesBuf + | |
2077 | reparse_buf->TargetNameOffset + | |
2078 | reparse_buf->TargetNameLen) > | |
2079 | end_of_smb) { | |
2080 | cFYI(1,("reparse buf extended beyond SMB")); | |
2081 | rc = -EIO; | |
2082 | goto qreparse_out; | |
2083 | } | |
2084 | ||
2085 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2086 | name_len = UniStrnlen((wchar_t *) | |
2087 | (reparse_buf->LinkNamesBuf + | |
2088 | reparse_buf->TargetNameOffset), | |
2089 | min(buflen/2, reparse_buf->TargetNameLen / 2)); | |
2090 | cifs_strfromUCS_le(symlinkinfo, | |
e89dc920 | 2091 | (__le16 *) (reparse_buf->LinkNamesBuf + |
1da177e4 LT |
2092 | reparse_buf->TargetNameOffset), |
2093 | name_len, nls_codepage); | |
2094 | } else { /* ASCII names */ | |
2095 | strncpy(symlinkinfo,reparse_buf->LinkNamesBuf + | |
2096 | reparse_buf->TargetNameOffset, | |
2097 | min_t(const int, buflen, reparse_buf->TargetNameLen)); | |
2098 | } | |
2099 | } else { | |
2100 | rc = -EIO; | |
2101 | cFYI(1,("Invalid return data count on get reparse info ioctl")); | |
2102 | } | |
2103 | symlinkinfo[buflen] = 0; /* just in case so the caller | |
2104 | does not go off the end of the buffer */ | |
2105 | cFYI(1,("readlink result - %s ",symlinkinfo)); | |
2106 | } | |
2107 | } | |
2108 | qreparse_out: | |
4a6d87f1 | 2109 | cifs_buf_release(pSMB); |
1da177e4 LT |
2110 | |
2111 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
2112 | since file handle passed in no longer valid */ | |
2113 | ||
2114 | return rc; | |
2115 | } | |
2116 | ||
2117 | #ifdef CONFIG_CIFS_POSIX | |
2118 | ||
2119 | /*Convert an Access Control Entry from wire format to local POSIX xattr format*/ | |
2120 | static void cifs_convert_ace(posix_acl_xattr_entry * ace, struct cifs_posix_ace * cifs_ace) | |
2121 | { | |
2122 | /* u8 cifs fields do not need le conversion */ | |
ff7feac9 SF |
2123 | ace->e_perm = cpu_to_le16(cifs_ace->cifs_e_perm); |
2124 | ace->e_tag = cpu_to_le16(cifs_ace->cifs_e_tag); | |
2125 | ace->e_id = cpu_to_le32(le64_to_cpu(cifs_ace->cifs_uid)); | |
1da177e4 LT |
2126 | /* cFYI(1,("perm %d tag %d id %d",ace->e_perm,ace->e_tag,ace->e_id)); */ |
2127 | ||
2128 | return; | |
2129 | } | |
2130 | ||
2131 | /* Convert ACL from CIFS POSIX wire format to local Linux POSIX ACL xattr */ | |
737b758c SF |
2132 | static int cifs_copy_posix_acl(char * trgt,char * src, const int buflen, |
2133 | const int acl_type,const int size_of_data_area) | |
1da177e4 LT |
2134 | { |
2135 | int size = 0; | |
2136 | int i; | |
2137 | __u16 count; | |
2138 | struct cifs_posix_ace * pACE; | |
2139 | struct cifs_posix_acl * cifs_acl = (struct cifs_posix_acl *)src; | |
2140 | posix_acl_xattr_header * local_acl = (posix_acl_xattr_header *)trgt; | |
2141 | ||
2142 | if (le16_to_cpu(cifs_acl->version) != CIFS_ACL_VERSION) | |
2143 | return -EOPNOTSUPP; | |
2144 | ||
2145 | if(acl_type & ACL_TYPE_ACCESS) { | |
2146 | count = le16_to_cpu(cifs_acl->access_entry_count); | |
2147 | pACE = &cifs_acl->ace_array[0]; | |
2148 | size = sizeof(struct cifs_posix_acl); | |
2149 | size += sizeof(struct cifs_posix_ace) * count; | |
2150 | /* check if we would go beyond end of SMB */ | |
2151 | if(size_of_data_area < size) { | |
2152 | cFYI(1,("bad CIFS POSIX ACL size %d vs. %d",size_of_data_area,size)); | |
2153 | return -EINVAL; | |
2154 | } | |
2155 | } else if(acl_type & ACL_TYPE_DEFAULT) { | |
2156 | count = le16_to_cpu(cifs_acl->access_entry_count); | |
2157 | size = sizeof(struct cifs_posix_acl); | |
2158 | size += sizeof(struct cifs_posix_ace) * count; | |
2159 | /* skip past access ACEs to get to default ACEs */ | |
2160 | pACE = &cifs_acl->ace_array[count]; | |
2161 | count = le16_to_cpu(cifs_acl->default_entry_count); | |
2162 | size += sizeof(struct cifs_posix_ace) * count; | |
2163 | /* check if we would go beyond end of SMB */ | |
2164 | if(size_of_data_area < size) | |
2165 | return -EINVAL; | |
2166 | } else { | |
2167 | /* illegal type */ | |
2168 | return -EINVAL; | |
2169 | } | |
2170 | ||
2171 | size = posix_acl_xattr_size(count); | |
2172 | if((buflen == 0) || (local_acl == NULL)) { | |
2173 | /* used to query ACL EA size */ | |
2174 | } else if(size > buflen) { | |
2175 | return -ERANGE; | |
2176 | } else /* buffer big enough */ { | |
ff7feac9 | 2177 | local_acl->a_version = cpu_to_le32(POSIX_ACL_XATTR_VERSION); |
1da177e4 LT |
2178 | for(i = 0;i < count ;i++) { |
2179 | cifs_convert_ace(&local_acl->a_entries[i],pACE); | |
2180 | pACE ++; | |
2181 | } | |
2182 | } | |
2183 | return size; | |
2184 | } | |
2185 | ||
2186 | static __u16 convert_ace_to_cifs_ace(struct cifs_posix_ace * cifs_ace, | |
2187 | const posix_acl_xattr_entry * local_ace) | |
2188 | { | |
2189 | __u16 rc = 0; /* 0 = ACL converted ok */ | |
2190 | ||
ff7feac9 SF |
2191 | cifs_ace->cifs_e_perm = le16_to_cpu(local_ace->e_perm); |
2192 | cifs_ace->cifs_e_tag = le16_to_cpu(local_ace->e_tag); | |
1da177e4 | 2193 | /* BB is there a better way to handle the large uid? */ |
ff7feac9 | 2194 | if(local_ace->e_id == cpu_to_le32(-1)) { |
1da177e4 LT |
2195 | /* Probably no need to le convert -1 on any arch but can not hurt */ |
2196 | cifs_ace->cifs_uid = cpu_to_le64(-1); | |
2197 | } else | |
ff7feac9 | 2198 | cifs_ace->cifs_uid = cpu_to_le64(le32_to_cpu(local_ace->e_id)); |
1da177e4 LT |
2199 | /*cFYI(1,("perm %d tag %d id %d",ace->e_perm,ace->e_tag,ace->e_id));*/ |
2200 | return rc; | |
2201 | } | |
2202 | ||
2203 | /* Convert ACL from local Linux POSIX xattr to CIFS POSIX ACL wire format */ | |
2204 | static __u16 ACL_to_cifs_posix(char * parm_data,const char * pACL,const int buflen, | |
2205 | const int acl_type) | |
2206 | { | |
2207 | __u16 rc = 0; | |
2208 | struct cifs_posix_acl * cifs_acl = (struct cifs_posix_acl *)parm_data; | |
2209 | posix_acl_xattr_header * local_acl = (posix_acl_xattr_header *)pACL; | |
2210 | int count; | |
2211 | int i; | |
2212 | ||
2213 | if((buflen == 0) || (pACL == NULL) || (cifs_acl == NULL)) | |
2214 | return 0; | |
2215 | ||
2216 | count = posix_acl_xattr_count((size_t)buflen); | |
2217 | cFYI(1,("setting acl with %d entries from buf of length %d and version of %d", | |
ff7feac9 SF |
2218 | count, buflen, le32_to_cpu(local_acl->a_version))); |
2219 | if(le32_to_cpu(local_acl->a_version) != 2) { | |
2220 | cFYI(1,("unknown POSIX ACL version %d", | |
2221 | le32_to_cpu(local_acl->a_version))); | |
1da177e4 LT |
2222 | return 0; |
2223 | } | |
2224 | cifs_acl->version = cpu_to_le16(1); | |
2225 | if(acl_type == ACL_TYPE_ACCESS) | |
ff7feac9 | 2226 | cifs_acl->access_entry_count = cpu_to_le16(count); |
1da177e4 | 2227 | else if(acl_type == ACL_TYPE_DEFAULT) |
ff7feac9 | 2228 | cifs_acl->default_entry_count = cpu_to_le16(count); |
1da177e4 LT |
2229 | else { |
2230 | cFYI(1,("unknown ACL type %d",acl_type)); | |
2231 | return 0; | |
2232 | } | |
2233 | for(i=0;i<count;i++) { | |
2234 | rc = convert_ace_to_cifs_ace(&cifs_acl->ace_array[i], | |
2235 | &local_acl->a_entries[i]); | |
2236 | if(rc != 0) { | |
2237 | /* ACE not converted */ | |
2238 | break; | |
2239 | } | |
2240 | } | |
2241 | if(rc == 0) { | |
2242 | rc = (__u16)(count * sizeof(struct cifs_posix_ace)); | |
2243 | rc += sizeof(struct cifs_posix_acl); | |
2244 | /* BB add check to make sure ACL does not overflow SMB */ | |
2245 | } | |
2246 | return rc; | |
2247 | } | |
2248 | ||
2249 | int | |
2250 | CIFSSMBGetPosixACL(const int xid, struct cifsTconInfo *tcon, | |
2251 | const unsigned char *searchName, | |
2252 | char *acl_inf, const int buflen, const int acl_type, | |
737b758c | 2253 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
2254 | { |
2255 | /* SMB_QUERY_POSIX_ACL */ | |
2256 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
2257 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
2258 | int rc = 0; | |
2259 | int bytes_returned; | |
2260 | int name_len; | |
2261 | __u16 params, byte_count; | |
2262 | ||
2263 | cFYI(1, ("In GetPosixACL (Unix) for path %s", searchName)); | |
2264 | ||
2265 | queryAclRetry: | |
2266 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2267 | (void **) &pSMBr); | |
2268 | if (rc) | |
2269 | return rc; | |
2270 | ||
2271 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2272 | name_len = | |
b1a45695 | 2273 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 2274 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2275 | name_len++; /* trailing null */ |
2276 | name_len *= 2; | |
2277 | pSMB->FileName[name_len] = 0; | |
2278 | pSMB->FileName[name_len+1] = 0; | |
2279 | } else { /* BB improve the check for buffer overruns BB */ | |
2280 | name_len = strnlen(searchName, PATH_MAX); | |
2281 | name_len++; /* trailing null */ | |
2282 | strncpy(pSMB->FileName, searchName, name_len); | |
2283 | } | |
2284 | ||
2285 | params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ; | |
2286 | pSMB->TotalDataCount = 0; | |
2287 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
2288 | /* BB find exact max data count below from sess structure BB */ | |
2289 | pSMB->MaxDataCount = cpu_to_le16(4000); | |
2290 | pSMB->MaxSetupCount = 0; | |
2291 | pSMB->Reserved = 0; | |
2292 | pSMB->Flags = 0; | |
2293 | pSMB->Timeout = 0; | |
2294 | pSMB->Reserved2 = 0; | |
2295 | pSMB->ParameterOffset = cpu_to_le16( | |
2296 | offsetof(struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); | |
2297 | pSMB->DataCount = 0; | |
2298 | pSMB->DataOffset = 0; | |
2299 | pSMB->SetupCount = 1; | |
2300 | pSMB->Reserved3 = 0; | |
2301 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
2302 | byte_count = params + 1 /* pad */ ; | |
2303 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
2304 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2305 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_POSIX_ACL); | |
2306 | pSMB->Reserved4 = 0; | |
2307 | pSMB->hdr.smb_buf_length += byte_count; | |
2308 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2309 | ||
2310 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2311 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
0a4b92c0 | 2312 | cifs_stats_inc(&tcon->num_acl_get); |
1da177e4 LT |
2313 | if (rc) { |
2314 | cFYI(1, ("Send error in Query POSIX ACL = %d", rc)); | |
2315 | } else { | |
2316 | /* decode response */ | |
2317 | ||
2318 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
2319 | if (rc || (pSMBr->ByteCount < 2)) | |
2320 | /* BB also check enough total bytes returned */ | |
2321 | rc = -EIO; /* bad smb */ | |
2322 | else { | |
2323 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
2324 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); | |
2325 | rc = cifs_copy_posix_acl(acl_inf, | |
2326 | (char *)&pSMBr->hdr.Protocol+data_offset, | |
2327 | buflen,acl_type,count); | |
2328 | } | |
2329 | } | |
2330 | cifs_buf_release(pSMB); | |
2331 | if (rc == -EAGAIN) | |
2332 | goto queryAclRetry; | |
2333 | return rc; | |
2334 | } | |
2335 | ||
2336 | int | |
2337 | CIFSSMBSetPosixACL(const int xid, struct cifsTconInfo *tcon, | |
2338 | const unsigned char *fileName, | |
737b758c SF |
2339 | const char *local_acl, const int buflen, |
2340 | const int acl_type, | |
2341 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
2342 | { |
2343 | struct smb_com_transaction2_spi_req *pSMB = NULL; | |
2344 | struct smb_com_transaction2_spi_rsp *pSMBr = NULL; | |
2345 | char *parm_data; | |
2346 | int name_len; | |
2347 | int rc = 0; | |
2348 | int bytes_returned = 0; | |
2349 | __u16 params, byte_count, data_count, param_offset, offset; | |
2350 | ||
2351 | cFYI(1, ("In SetPosixACL (Unix) for path %s", fileName)); | |
2352 | setAclRetry: | |
2353 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2354 | (void **) &pSMBr); | |
2355 | if (rc) | |
2356 | return rc; | |
2357 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2358 | name_len = | |
b1a45695 | 2359 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 2360 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2361 | name_len++; /* trailing null */ |
2362 | name_len *= 2; | |
2363 | } else { /* BB improve the check for buffer overruns BB */ | |
2364 | name_len = strnlen(fileName, PATH_MAX); | |
2365 | name_len++; /* trailing null */ | |
2366 | strncpy(pSMB->FileName, fileName, name_len); | |
2367 | } | |
2368 | params = 6 + name_len; | |
2369 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
2370 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB size from sess */ | |
2371 | pSMB->MaxSetupCount = 0; | |
2372 | pSMB->Reserved = 0; | |
2373 | pSMB->Flags = 0; | |
2374 | pSMB->Timeout = 0; | |
2375 | pSMB->Reserved2 = 0; | |
2376 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
2377 | InformationLevel) - 4; | |
2378 | offset = param_offset + params; | |
2379 | parm_data = ((char *) &pSMB->hdr.Protocol) + offset; | |
2380 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
2381 | ||
2382 | /* convert to on the wire format for POSIX ACL */ | |
2383 | data_count = ACL_to_cifs_posix(parm_data,local_acl,buflen,acl_type); | |
2384 | ||
2385 | if(data_count == 0) { | |
2386 | rc = -EOPNOTSUPP; | |
2387 | goto setACLerrorExit; | |
2388 | } | |
2389 | pSMB->DataOffset = cpu_to_le16(offset); | |
2390 | pSMB->SetupCount = 1; | |
2391 | pSMB->Reserved3 = 0; | |
2392 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
2393 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_POSIX_ACL); | |
2394 | byte_count = 3 /* pad */ + params + data_count; | |
2395 | pSMB->DataCount = cpu_to_le16(data_count); | |
2396 | pSMB->TotalDataCount = pSMB->DataCount; | |
2397 | pSMB->ParameterCount = cpu_to_le16(params); | |
2398 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
2399 | pSMB->Reserved4 = 0; | |
2400 | pSMB->hdr.smb_buf_length += byte_count; | |
2401 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2402 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2403 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2404 | if (rc) { | |
2405 | cFYI(1, ("Set POSIX ACL returned %d", rc)); | |
2406 | } | |
2407 | ||
2408 | setACLerrorExit: | |
2409 | cifs_buf_release(pSMB); | |
2410 | if (rc == -EAGAIN) | |
2411 | goto setAclRetry; | |
2412 | return rc; | |
2413 | } | |
2414 | ||
f654bac2 SF |
2415 | /* BB fix tabs in this function FIXME BB */ |
2416 | int | |
2417 | CIFSGetExtAttr(const int xid, struct cifsTconInfo *tcon, | |
2418 | const int netfid, __u64 * pExtAttrBits, __u64 *pMask) | |
2419 | { | |
2420 | int rc = 0; | |
2421 | struct smb_t2_qfi_req *pSMB = NULL; | |
2422 | struct smb_t2_qfi_rsp *pSMBr = NULL; | |
2423 | int bytes_returned; | |
2424 | __u16 params, byte_count; | |
2425 | ||
2426 | cFYI(1,("In GetExtAttr")); | |
2427 | if(tcon == NULL) | |
2428 | return -ENODEV; | |
2429 | ||
2430 | GetExtAttrRetry: | |
2431 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2432 | (void **) &pSMBr); | |
2433 | if (rc) | |
2434 | return rc; | |
2435 | ||
c67593a0 | 2436 | params = 2 /* level */ +2 /* fid */; |
f654bac2 | 2437 | pSMB->t2.TotalDataCount = 0; |
c67593a0 | 2438 | pSMB->t2.MaxParameterCount = cpu_to_le16(4); |
f654bac2 SF |
2439 | /* BB find exact max data count below from sess structure BB */ |
2440 | pSMB->t2.MaxDataCount = cpu_to_le16(4000); | |
2441 | pSMB->t2.MaxSetupCount = 0; | |
2442 | pSMB->t2.Reserved = 0; | |
2443 | pSMB->t2.Flags = 0; | |
2444 | pSMB->t2.Timeout = 0; | |
2445 | pSMB->t2.Reserved2 = 0; | |
c67593a0 SF |
2446 | pSMB->t2.ParameterOffset = cpu_to_le16(offsetof(struct smb_t2_qfi_req, |
2447 | Fid) - 4); | |
f654bac2 SF |
2448 | pSMB->t2.DataCount = 0; |
2449 | pSMB->t2.DataOffset = 0; | |
2450 | pSMB->t2.SetupCount = 1; | |
2451 | pSMB->t2.Reserved3 = 0; | |
2452 | pSMB->t2.SubCommand = cpu_to_le16(TRANS2_QUERY_FILE_INFORMATION); | |
c67593a0 | 2453 | byte_count = params + 1 /* pad */ ; |
f654bac2 SF |
2454 | pSMB->t2.TotalParameterCount = cpu_to_le16(params); |
2455 | pSMB->t2.ParameterCount = pSMB->t2.TotalParameterCount; | |
2456 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_ATTR_FLAGS); | |
c67593a0 | 2457 | pSMB->Pad = 0; |
f654bac2 SF |
2458 | pSMB->Fid = netfid; |
2459 | pSMB->hdr.smb_buf_length += byte_count; | |
2460 | pSMB->t2.ByteCount = cpu_to_le16(byte_count); | |
2461 | ||
2462 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2463 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2464 | if (rc) { | |
2465 | cFYI(1, ("error %d in GetExtAttr", rc)); | |
2466 | } else { | |
2467 | /* decode response */ | |
2468 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
2469 | if (rc || (pSMBr->ByteCount < 2)) | |
2470 | /* BB also check enough total bytes returned */ | |
2471 | /* If rc should we check for EOPNOSUPP and | |
2472 | disable the srvino flag? or in caller? */ | |
2473 | rc = -EIO; /* bad smb */ | |
2474 | else { | |
2475 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
2476 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); | |
2477 | struct file_chattr_info * pfinfo; | |
2478 | /* BB Do we need a cast or hash here ? */ | |
2479 | if(count != 16) { | |
2480 | cFYI(1, ("Illegal size ret in GetExtAttr")); | |
2481 | rc = -EIO; | |
2482 | goto GetExtAttrOut; | |
2483 | } | |
2484 | pfinfo = (struct file_chattr_info *) | |
2485 | (data_offset + (char *) &pSMBr->hdr.Protocol); | |
2486 | *pExtAttrBits = le64_to_cpu(pfinfo->mode); | |
2487 | *pMask = le64_to_cpu(pfinfo->mask); | |
2488 | } | |
2489 | } | |
2490 | GetExtAttrOut: | |
2491 | cifs_buf_release(pSMB); | |
2492 | if (rc == -EAGAIN) | |
2493 | goto GetExtAttrRetry; | |
2494 | return rc; | |
2495 | } | |
2496 | ||
2497 | ||
2498 | #endif /* CONFIG_POSIX */ | |
1da177e4 | 2499 | |
eeac8047 SF |
2500 | |
2501 | /* security id for everyone */ | |
2502 | const struct cifs_sid sid_everyone = {1, 1, {0, 0, 0, 0, 0, 0}, {0, 0, 0, 0}}; | |
2503 | /* group users */ | |
2504 | const struct cifs_sid sid_user = {1, 2 , {0, 0, 0, 0, 0, 5}, {32, 545, 0, 0}}; | |
2505 | ||
0a4b92c0 | 2506 | /* Convert CIFS ACL to POSIX form */ |
eeac8047 | 2507 | static int parse_sec_desc(struct cifs_sid * psec_desc, int acl_len) |
0a4b92c0 | 2508 | { |
0a4b92c0 SF |
2509 | return 0; |
2510 | } | |
2511 | ||
2512 | /* Get Security Descriptor (by handle) from remote server for a file or dir */ | |
2513 | int | |
2514 | CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid, | |
2515 | /* BB fix up return info */ char *acl_inf, const int buflen, | |
2516 | const int acl_type /* ACCESS/DEFAULT not sure implication */) | |
2517 | { | |
2518 | int rc = 0; | |
2519 | int buf_type = 0; | |
2520 | QUERY_SEC_DESC_REQ * pSMB; | |
2521 | struct kvec iov[1]; | |
2522 | ||
2523 | cFYI(1, ("GetCifsACL")); | |
2524 | ||
2525 | rc = smb_init_ntransact(NT_TRANSACT_QUERY_SECURITY_DESC, 0, | |
2526 | 8 /* parm len */, tcon, (void **) &pSMB); | |
2527 | if (rc) | |
2528 | return rc; | |
2529 | ||
2530 | pSMB->MaxParameterCount = cpu_to_le32(4); | |
2531 | /* BB TEST with big acls that might need to be e.g. larger than 16K */ | |
2532 | pSMB->MaxSetupCount = 0; | |
2533 | pSMB->Fid = fid; /* file handle always le */ | |
2534 | pSMB->AclFlags = cpu_to_le32(CIFS_ACL_OWNER | CIFS_ACL_GROUP | | |
2535 | CIFS_ACL_DACL); | |
2536 | pSMB->ByteCount = cpu_to_le16(11); /* 3 bytes pad + 8 bytes parm */ | |
2537 | pSMB->hdr.smb_buf_length += 11; | |
2538 | iov[0].iov_base = (char *)pSMB; | |
2539 | iov[0].iov_len = pSMB->hdr.smb_buf_length + 4; | |
2540 | ||
2541 | rc = SendReceive2(xid, tcon->ses, iov, 1 /* num iovec */, &buf_type, 0); | |
2542 | cifs_stats_inc(&tcon->num_acl_get); | |
2543 | if (rc) { | |
2544 | cFYI(1, ("Send error in QuerySecDesc = %d", rc)); | |
2545 | } else { /* decode response */ | |
d41f084a | 2546 | struct cifs_sid * psec_desc; |
0a4b92c0 SF |
2547 | __le32 * parm; |
2548 | int parm_len; | |
2549 | int data_len; | |
2550 | int acl_len; | |
2551 | struct smb_com_ntransact_rsp * pSMBr; | |
2552 | ||
2553 | /* validate_nttransact */ | |
2554 | rc = validate_ntransact(iov[0].iov_base, (char **)&parm, | |
2555 | (char **)&psec_desc, | |
2556 | &parm_len, &data_len); | |
2557 | ||
2558 | if(rc) | |
2559 | goto qsec_out; | |
2560 | pSMBr = (struct smb_com_ntransact_rsp *)iov[0].iov_base; | |
2561 | ||
2562 | cERROR(1,("smb %p parm %p data %p",pSMBr,parm,psec_desc)); /* BB removeme BB */ | |
2563 | ||
2564 | if (le32_to_cpu(pSMBr->ParameterCount) != 4) { | |
2565 | rc = -EIO; /* bad smb */ | |
2566 | goto qsec_out; | |
2567 | } | |
2568 | ||
2569 | /* BB check that data area is minimum length and as big as acl_len */ | |
2570 | ||
2571 | acl_len = le32_to_cpu(*(__le32 *)parm); | |
2572 | /* BB check if(acl_len > bufsize) */ | |
2573 | ||
2574 | parse_sec_desc(psec_desc, acl_len); | |
2575 | } | |
2576 | qsec_out: | |
2577 | if(buf_type == CIFS_SMALL_BUFFER) | |
2578 | cifs_small_buf_release(iov[0].iov_base); | |
2579 | else if(buf_type == CIFS_LARGE_BUFFER) | |
2580 | cifs_buf_release(iov[0].iov_base); | |
2581 | cifs_small_buf_release(pSMB); | |
2582 | return rc; | |
2583 | } | |
2584 | ||
2585 | ||
6b8edfe0 SF |
2586 | /* Legacy Query Path Information call for lookup to old servers such |
2587 | as Win9x/WinME */ | |
2588 | int SMBQueryInformation(const int xid, struct cifsTconInfo *tcon, | |
2589 | const unsigned char *searchName, | |
2590 | FILE_ALL_INFO * pFinfo, | |
2591 | const struct nls_table *nls_codepage, int remap) | |
2592 | { | |
2593 | QUERY_INFORMATION_REQ * pSMB; | |
2594 | QUERY_INFORMATION_RSP * pSMBr; | |
2595 | int rc = 0; | |
2596 | int bytes_returned; | |
2597 | int name_len; | |
2598 | ||
2599 | cFYI(1, ("In SMBQPath path %s", searchName)); | |
2600 | QInfRetry: | |
2601 | rc = smb_init(SMB_COM_QUERY_INFORMATION, 0, tcon, (void **) &pSMB, | |
2602 | (void **) &pSMBr); | |
2603 | if (rc) | |
2604 | return rc; | |
2605 | ||
2606 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2607 | name_len = | |
2608 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, | |
2609 | PATH_MAX, nls_codepage, remap); | |
2610 | name_len++; /* trailing null */ | |
2611 | name_len *= 2; | |
2612 | } else { | |
2613 | name_len = strnlen(searchName, PATH_MAX); | |
2614 | name_len++; /* trailing null */ | |
2615 | strncpy(pSMB->FileName, searchName, name_len); | |
2616 | } | |
2617 | pSMB->BufferFormat = 0x04; | |
2618 | name_len++; /* account for buffer type byte */ | |
2619 | pSMB->hdr.smb_buf_length += (__u16) name_len; | |
2620 | pSMB->ByteCount = cpu_to_le16(name_len); | |
2621 | ||
2622 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2623 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2624 | if (rc) { | |
2625 | cFYI(1, ("Send error in QueryInfo = %d", rc)); | |
2626 | } else if (pFinfo) { /* decode response */ | |
2627 | memset(pFinfo, 0, sizeof(FILE_ALL_INFO)); | |
70ca734a SF |
2628 | pFinfo->AllocationSize = |
2629 | cpu_to_le64(le32_to_cpu(pSMBr->size)); | |
2630 | pFinfo->EndOfFile = pFinfo->AllocationSize; | |
2631 | pFinfo->Attributes = | |
2632 | cpu_to_le32(le16_to_cpu(pSMBr->attr)); | |
6b8edfe0 SF |
2633 | } else |
2634 | rc = -EIO; /* bad buffer passed in */ | |
2635 | ||
2636 | cifs_buf_release(pSMB); | |
2637 | ||
2638 | if (rc == -EAGAIN) | |
2639 | goto QInfRetry; | |
2640 | ||
2641 | return rc; | |
2642 | } | |
2643 | ||
2644 | ||
2645 | ||
2646 | ||
1da177e4 LT |
2647 | int |
2648 | CIFSSMBQPathInfo(const int xid, struct cifsTconInfo *tcon, | |
2649 | const unsigned char *searchName, | |
2650 | FILE_ALL_INFO * pFindData, | |
737b758c | 2651 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
2652 | { |
2653 | /* level 263 SMB_QUERY_FILE_ALL_INFO */ | |
2654 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
2655 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
2656 | int rc = 0; | |
2657 | int bytes_returned; | |
2658 | int name_len; | |
2659 | __u16 params, byte_count; | |
2660 | ||
2661 | /* cFYI(1, ("In QPathInfo path %s", searchName)); */ | |
2662 | QPathInfoRetry: | |
2663 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2664 | (void **) &pSMBr); | |
2665 | if (rc) | |
2666 | return rc; | |
2667 | ||
2668 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2669 | name_len = | |
b1a45695 | 2670 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 2671 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2672 | name_len++; /* trailing null */ |
2673 | name_len *= 2; | |
2674 | } else { /* BB improve the check for buffer overruns BB */ | |
2675 | name_len = strnlen(searchName, PATH_MAX); | |
2676 | name_len++; /* trailing null */ | |
2677 | strncpy(pSMB->FileName, searchName, name_len); | |
2678 | } | |
2679 | ||
2680 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */ ; | |
2681 | pSMB->TotalDataCount = 0; | |
2682 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
2683 | pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ | |
2684 | pSMB->MaxSetupCount = 0; | |
2685 | pSMB->Reserved = 0; | |
2686 | pSMB->Flags = 0; | |
2687 | pSMB->Timeout = 0; | |
2688 | pSMB->Reserved2 = 0; | |
2689 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
2690 | struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); | |
2691 | pSMB->DataCount = 0; | |
2692 | pSMB->DataOffset = 0; | |
2693 | pSMB->SetupCount = 1; | |
2694 | pSMB->Reserved3 = 0; | |
2695 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
2696 | byte_count = params + 1 /* pad */ ; | |
2697 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
2698 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2699 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_ALL_INFO); | |
2700 | pSMB->Reserved4 = 0; | |
2701 | pSMB->hdr.smb_buf_length += byte_count; | |
2702 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2703 | ||
2704 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2705 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2706 | if (rc) { | |
2707 | cFYI(1, ("Send error in QPathInfo = %d", rc)); | |
2708 | } else { /* decode response */ | |
2709 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
2710 | ||
2711 | if (rc || (pSMBr->ByteCount < 40)) | |
2712 | rc = -EIO; /* bad smb */ | |
2713 | else if (pFindData){ | |
2714 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
2715 | memcpy((char *) pFindData, | |
2716 | (char *) &pSMBr->hdr.Protocol + | |
2717 | data_offset, sizeof (FILE_ALL_INFO)); | |
2718 | } else | |
2719 | rc = -ENOMEM; | |
2720 | } | |
2721 | cifs_buf_release(pSMB); | |
2722 | if (rc == -EAGAIN) | |
2723 | goto QPathInfoRetry; | |
2724 | ||
2725 | return rc; | |
2726 | } | |
2727 | ||
2728 | int | |
2729 | CIFSSMBUnixQPathInfo(const int xid, struct cifsTconInfo *tcon, | |
2730 | const unsigned char *searchName, | |
2731 | FILE_UNIX_BASIC_INFO * pFindData, | |
737b758c | 2732 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
2733 | { |
2734 | /* SMB_QUERY_FILE_UNIX_BASIC */ | |
2735 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
2736 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
2737 | int rc = 0; | |
2738 | int bytes_returned = 0; | |
2739 | int name_len; | |
2740 | __u16 params, byte_count; | |
2741 | ||
2742 | cFYI(1, ("In QPathInfo (Unix) the path %s", searchName)); | |
2743 | UnixQPathInfoRetry: | |
2744 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2745 | (void **) &pSMBr); | |
2746 | if (rc) | |
2747 | return rc; | |
2748 | ||
2749 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2750 | name_len = | |
b1a45695 | 2751 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 2752 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2753 | name_len++; /* trailing null */ |
2754 | name_len *= 2; | |
2755 | } else { /* BB improve the check for buffer overruns BB */ | |
2756 | name_len = strnlen(searchName, PATH_MAX); | |
2757 | name_len++; /* trailing null */ | |
2758 | strncpy(pSMB->FileName, searchName, name_len); | |
2759 | } | |
2760 | ||
2761 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */ ; | |
2762 | pSMB->TotalDataCount = 0; | |
2763 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
2764 | /* BB find exact max SMB PDU from sess structure BB */ | |
2765 | pSMB->MaxDataCount = cpu_to_le16(4000); | |
2766 | pSMB->MaxSetupCount = 0; | |
2767 | pSMB->Reserved = 0; | |
2768 | pSMB->Flags = 0; | |
2769 | pSMB->Timeout = 0; | |
2770 | pSMB->Reserved2 = 0; | |
2771 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
2772 | struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); | |
2773 | pSMB->DataCount = 0; | |
2774 | pSMB->DataOffset = 0; | |
2775 | pSMB->SetupCount = 1; | |
2776 | pSMB->Reserved3 = 0; | |
2777 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
2778 | byte_count = params + 1 /* pad */ ; | |
2779 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
2780 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2781 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_UNIX_BASIC); | |
2782 | pSMB->Reserved4 = 0; | |
2783 | pSMB->hdr.smb_buf_length += byte_count; | |
2784 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2785 | ||
2786 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2787 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2788 | if (rc) { | |
2789 | cFYI(1, ("Send error in QPathInfo = %d", rc)); | |
2790 | } else { /* decode response */ | |
2791 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
2792 | ||
2793 | if (rc || (pSMBr->ByteCount < sizeof(FILE_UNIX_BASIC_INFO))) { | |
2794 | rc = -EIO; /* bad smb */ | |
2795 | } else { | |
2796 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
2797 | memcpy((char *) pFindData, | |
2798 | (char *) &pSMBr->hdr.Protocol + | |
2799 | data_offset, | |
2800 | sizeof (FILE_UNIX_BASIC_INFO)); | |
2801 | } | |
2802 | } | |
2803 | cifs_buf_release(pSMB); | |
2804 | if (rc == -EAGAIN) | |
2805 | goto UnixQPathInfoRetry; | |
2806 | ||
2807 | return rc; | |
2808 | } | |
2809 | ||
2810 | #if 0 /* function unused at present */ | |
2811 | int CIFSFindSingle(const int xid, struct cifsTconInfo *tcon, | |
2812 | const char *searchName, FILE_ALL_INFO * findData, | |
2813 | const struct nls_table *nls_codepage) | |
2814 | { | |
2815 | /* level 257 SMB_ */ | |
2816 | TRANSACTION2_FFIRST_REQ *pSMB = NULL; | |
2817 | TRANSACTION2_FFIRST_RSP *pSMBr = NULL; | |
2818 | int rc = 0; | |
2819 | int bytes_returned; | |
2820 | int name_len; | |
2821 | __u16 params, byte_count; | |
2822 | ||
2823 | cFYI(1, ("In FindUnique")); | |
2824 | findUniqueRetry: | |
2825 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2826 | (void **) &pSMBr); | |
2827 | if (rc) | |
2828 | return rc; | |
2829 | ||
2830 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2831 | name_len = | |
b1a45695 | 2832 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, PATH_MAX |
1da177e4 LT |
2833 | /* find define for this maxpathcomponent */ |
2834 | , nls_codepage); | |
2835 | name_len++; /* trailing null */ | |
2836 | name_len *= 2; | |
2837 | } else { /* BB improve the check for buffer overruns BB */ | |
2838 | name_len = strnlen(searchName, PATH_MAX); | |
2839 | name_len++; /* trailing null */ | |
2840 | strncpy(pSMB->FileName, searchName, name_len); | |
2841 | } | |
2842 | ||
2843 | params = 12 + name_len /* includes null */ ; | |
2844 | pSMB->TotalDataCount = 0; /* no EAs */ | |
2845 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
2846 | pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ | |
2847 | pSMB->MaxSetupCount = 0; | |
2848 | pSMB->Reserved = 0; | |
2849 | pSMB->Flags = 0; | |
2850 | pSMB->Timeout = 0; | |
2851 | pSMB->Reserved2 = 0; | |
2852 | pSMB->ParameterOffset = cpu_to_le16( | |
2853 | offsetof(struct smb_com_transaction2_ffirst_req,InformationLevel) - 4); | |
2854 | pSMB->DataCount = 0; | |
2855 | pSMB->DataOffset = 0; | |
2856 | pSMB->SetupCount = 1; /* one byte, no need to le convert */ | |
2857 | pSMB->Reserved3 = 0; | |
2858 | pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_FIRST); | |
2859 | byte_count = params + 1 /* pad */ ; | |
2860 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
2861 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2862 | pSMB->SearchAttributes = | |
2863 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | | |
2864 | ATTR_DIRECTORY); | |
2865 | pSMB->SearchCount = cpu_to_le16(16); /* BB increase */ | |
2866 | pSMB->SearchFlags = cpu_to_le16(1); | |
2867 | pSMB->InformationLevel = cpu_to_le16(SMB_FIND_FILE_DIRECTORY_INFO); | |
2868 | pSMB->SearchStorageType = 0; /* BB what should we set this to? BB */ | |
2869 | pSMB->hdr.smb_buf_length += byte_count; | |
2870 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2871 | ||
2872 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2873 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2874 | ||
2875 | if (rc) { | |
2876 | cFYI(1, ("Send error in FindFileDirInfo = %d", rc)); | |
2877 | } else { /* decode response */ | |
a4544347 | 2878 | cifs_stats_inc(&tcon->num_ffirst); |
1da177e4 LT |
2879 | /* BB fill in */ |
2880 | } | |
2881 | ||
2882 | cifs_buf_release(pSMB); | |
2883 | if (rc == -EAGAIN) | |
2884 | goto findUniqueRetry; | |
2885 | ||
2886 | return rc; | |
2887 | } | |
2888 | #endif /* end unused (temporarily) function */ | |
2889 | ||
2890 | /* xid, tcon, searchName and codepage are input parms, rest are returned */ | |
2891 | int | |
2892 | CIFSFindFirst(const int xid, struct cifsTconInfo *tcon, | |
2893 | const char *searchName, | |
2894 | const struct nls_table *nls_codepage, | |
2895 | __u16 * pnetfid, | |
ac67055e | 2896 | struct cifs_search_info * psrch_inf, int remap, const char dirsep) |
1da177e4 LT |
2897 | { |
2898 | /* level 257 SMB_ */ | |
2899 | TRANSACTION2_FFIRST_REQ *pSMB = NULL; | |
2900 | TRANSACTION2_FFIRST_RSP *pSMBr = NULL; | |
2901 | T2_FFIRST_RSP_PARMS * parms; | |
2902 | int rc = 0; | |
2903 | int bytes_returned = 0; | |
2904 | int name_len; | |
2905 | __u16 params, byte_count; | |
2906 | ||
737b758c | 2907 | cFYI(1, ("In FindFirst for %s",searchName)); |
1da177e4 LT |
2908 | |
2909 | findFirstRetry: | |
2910 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2911 | (void **) &pSMBr); | |
2912 | if (rc) | |
2913 | return rc; | |
2914 | ||
2915 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2916 | name_len = | |
b1a45695 | 2917 | cifsConvertToUCS((__le16 *) pSMB->FileName,searchName, |
737b758c SF |
2918 | PATH_MAX, nls_codepage, remap); |
2919 | /* We can not add the asterik earlier in case | |
2920 | it got remapped to 0xF03A as if it were part of the | |
2921 | directory name instead of a wildcard */ | |
1da177e4 | 2922 | name_len *= 2; |
ac67055e | 2923 | pSMB->FileName[name_len] = dirsep; |
737b758c SF |
2924 | pSMB->FileName[name_len+1] = 0; |
2925 | pSMB->FileName[name_len+2] = '*'; | |
2926 | pSMB->FileName[name_len+3] = 0; | |
2927 | name_len += 4; /* now the trailing null */ | |
1da177e4 LT |
2928 | pSMB->FileName[name_len] = 0; /* null terminate just in case */ |
2929 | pSMB->FileName[name_len+1] = 0; | |
737b758c | 2930 | name_len += 2; |
1da177e4 LT |
2931 | } else { /* BB add check for overrun of SMB buf BB */ |
2932 | name_len = strnlen(searchName, PATH_MAX); | |
1da177e4 LT |
2933 | /* BB fix here and in unicode clause above ie |
2934 | if(name_len > buffersize-header) | |
2935 | free buffer exit; BB */ | |
2936 | strncpy(pSMB->FileName, searchName, name_len); | |
ac67055e | 2937 | pSMB->FileName[name_len] = dirsep; |
68575476 SF |
2938 | pSMB->FileName[name_len+1] = '*'; |
2939 | pSMB->FileName[name_len+2] = 0; | |
2940 | name_len += 3; | |
1da177e4 LT |
2941 | } |
2942 | ||
2943 | params = 12 + name_len /* includes null */ ; | |
2944 | pSMB->TotalDataCount = 0; /* no EAs */ | |
2945 | pSMB->MaxParameterCount = cpu_to_le16(10); | |
2946 | pSMB->MaxDataCount = cpu_to_le16((tcon->ses->server->maxBuf - | |
2947 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
2948 | pSMB->MaxSetupCount = 0; | |
2949 | pSMB->Reserved = 0; | |
2950 | pSMB->Flags = 0; | |
2951 | pSMB->Timeout = 0; | |
2952 | pSMB->Reserved2 = 0; | |
2953 | byte_count = params + 1 /* pad */ ; | |
2954 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
2955 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2956 | pSMB->ParameterOffset = cpu_to_le16( | |
2957 | offsetof(struct smb_com_transaction2_ffirst_req, SearchAttributes) - 4); | |
2958 | pSMB->DataCount = 0; | |
2959 | pSMB->DataOffset = 0; | |
2960 | pSMB->SetupCount = 1; /* one byte, no need to make endian neutral */ | |
2961 | pSMB->Reserved3 = 0; | |
2962 | pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_FIRST); | |
2963 | pSMB->SearchAttributes = | |
2964 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | | |
2965 | ATTR_DIRECTORY); | |
2966 | pSMB->SearchCount= cpu_to_le16(CIFSMaxBufSize/sizeof(FILE_UNIX_INFO)); | |
2967 | pSMB->SearchFlags = cpu_to_le16(CIFS_SEARCH_CLOSE_AT_END | | |
2968 | CIFS_SEARCH_RETURN_RESUME); | |
2969 | pSMB->InformationLevel = cpu_to_le16(psrch_inf->info_level); | |
2970 | ||
2971 | /* BB what should we set StorageType to? Does it matter? BB */ | |
2972 | pSMB->SearchStorageType = 0; | |
2973 | pSMB->hdr.smb_buf_length += byte_count; | |
2974 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2975 | ||
2976 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2977 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 2978 | cifs_stats_inc(&tcon->num_ffirst); |
1da177e4 | 2979 | |
1982c344 | 2980 | if (rc) {/* BB add logic to retry regular search if Unix search rejected unexpectedly by server */ |
1da177e4 LT |
2981 | /* BB Add code to handle unsupported level rc */ |
2982 | cFYI(1, ("Error in FindFirst = %d", rc)); | |
1982c344 SF |
2983 | |
2984 | if (pSMB) | |
2985 | cifs_buf_release(pSMB); | |
1da177e4 LT |
2986 | |
2987 | /* BB eventually could optimize out free and realloc of buf */ | |
2988 | /* for this case */ | |
2989 | if (rc == -EAGAIN) | |
2990 | goto findFirstRetry; | |
2991 | } else { /* decode response */ | |
2992 | /* BB remember to free buffer if error BB */ | |
2993 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
2994 | if(rc == 0) { | |
2995 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) | |
2996 | psrch_inf->unicode = TRUE; | |
2997 | else | |
2998 | psrch_inf->unicode = FALSE; | |
2999 | ||
3000 | psrch_inf->ntwrk_buf_start = (char *)pSMBr; | |
3001 | psrch_inf->srch_entries_start = | |
3002 | (char *) &pSMBr->hdr.Protocol + | |
3003 | le16_to_cpu(pSMBr->t2.DataOffset); | |
1da177e4 LT |
3004 | parms = (T2_FFIRST_RSP_PARMS *)((char *) &pSMBr->hdr.Protocol + |
3005 | le16_to_cpu(pSMBr->t2.ParameterOffset)); | |
3006 | ||
3007 | if(parms->EndofSearch) | |
3008 | psrch_inf->endOfSearch = TRUE; | |
3009 | else | |
3010 | psrch_inf->endOfSearch = FALSE; | |
3011 | ||
3012 | psrch_inf->entries_in_buffer = le16_to_cpu(parms->SearchCount); | |
3013 | psrch_inf->index_of_last_entry = | |
3014 | psrch_inf->entries_in_buffer; | |
1da177e4 LT |
3015 | *pnetfid = parms->SearchHandle; |
3016 | } else { | |
3017 | cifs_buf_release(pSMB); | |
3018 | } | |
3019 | } | |
3020 | ||
3021 | return rc; | |
3022 | } | |
3023 | ||
3024 | int CIFSFindNext(const int xid, struct cifsTconInfo *tcon, | |
3025 | __u16 searchHandle, struct cifs_search_info * psrch_inf) | |
3026 | { | |
3027 | TRANSACTION2_FNEXT_REQ *pSMB = NULL; | |
3028 | TRANSACTION2_FNEXT_RSP *pSMBr = NULL; | |
3029 | T2_FNEXT_RSP_PARMS * parms; | |
3030 | char *response_data; | |
3031 | int rc = 0; | |
3032 | int bytes_returned, name_len; | |
3033 | __u16 params, byte_count; | |
3034 | ||
3035 | cFYI(1, ("In FindNext")); | |
3036 | ||
3037 | if(psrch_inf->endOfSearch == TRUE) | |
3038 | return -ENOENT; | |
3039 | ||
3040 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3041 | (void **) &pSMBr); | |
3042 | if (rc) | |
3043 | return rc; | |
3044 | ||
3045 | params = 14; /* includes 2 bytes of null string, converted to LE below */ | |
3046 | byte_count = 0; | |
3047 | pSMB->TotalDataCount = 0; /* no EAs */ | |
3048 | pSMB->MaxParameterCount = cpu_to_le16(8); | |
3049 | pSMB->MaxDataCount = | |
3050 | cpu_to_le16((tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
3051 | pSMB->MaxSetupCount = 0; | |
3052 | pSMB->Reserved = 0; | |
3053 | pSMB->Flags = 0; | |
3054 | pSMB->Timeout = 0; | |
3055 | pSMB->Reserved2 = 0; | |
3056 | pSMB->ParameterOffset = cpu_to_le16( | |
3057 | offsetof(struct smb_com_transaction2_fnext_req,SearchHandle) - 4); | |
3058 | pSMB->DataCount = 0; | |
3059 | pSMB->DataOffset = 0; | |
3060 | pSMB->SetupCount = 1; | |
3061 | pSMB->Reserved3 = 0; | |
3062 | pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_NEXT); | |
3063 | pSMB->SearchHandle = searchHandle; /* always kept as le */ | |
3064 | pSMB->SearchCount = | |
3065 | cpu_to_le16(CIFSMaxBufSize / sizeof (FILE_UNIX_INFO)); | |
3066 | /* test for Unix extensions */ | |
3067 | /* if (tcon->ses->capabilities & CAP_UNIX) { | |
3068 | pSMB->InformationLevel = cpu_to_le16(SMB_FIND_FILE_UNIX); | |
3069 | psrch_inf->info_level = SMB_FIND_FILE_UNIX; | |
3070 | } else { | |
3071 | pSMB->InformationLevel = | |
3072 | cpu_to_le16(SMB_FIND_FILE_DIRECTORY_INFO); | |
3073 | psrch_inf->info_level = SMB_FIND_FILE_DIRECTORY_INFO; | |
3074 | } */ | |
3075 | pSMB->InformationLevel = cpu_to_le16(psrch_inf->info_level); | |
3076 | pSMB->ResumeKey = psrch_inf->resume_key; | |
3077 | pSMB->SearchFlags = | |
3078 | cpu_to_le16(CIFS_SEARCH_CLOSE_AT_END | CIFS_SEARCH_RETURN_RESUME); | |
3079 | ||
3080 | name_len = psrch_inf->resume_name_len; | |
3081 | params += name_len; | |
3082 | if(name_len < PATH_MAX) { | |
3083 | memcpy(pSMB->ResumeFileName, psrch_inf->presume_name, name_len); | |
3084 | byte_count += name_len; | |
ef6724e3 SF |
3085 | /* 14 byte parm len above enough for 2 byte null terminator */ |
3086 | pSMB->ResumeFileName[name_len] = 0; | |
3087 | pSMB->ResumeFileName[name_len+1] = 0; | |
1da177e4 LT |
3088 | } else { |
3089 | rc = -EINVAL; | |
3090 | goto FNext2_err_exit; | |
3091 | } | |
3092 | byte_count = params + 1 /* pad */ ; | |
3093 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3094 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3095 | pSMB->hdr.smb_buf_length += byte_count; | |
3096 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3097 | ||
3098 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3099 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 3100 | cifs_stats_inc(&tcon->num_fnext); |
1da177e4 LT |
3101 | if (rc) { |
3102 | if (rc == -EBADF) { | |
3103 | psrch_inf->endOfSearch = TRUE; | |
3104 | rc = 0; /* search probably was closed at end of search above */ | |
3105 | } else | |
3106 | cFYI(1, ("FindNext returned = %d", rc)); | |
3107 | } else { /* decode response */ | |
3108 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3109 | ||
3110 | if(rc == 0) { | |
3111 | /* BB fixme add lock for file (srch_info) struct here */ | |
3112 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) | |
3113 | psrch_inf->unicode = TRUE; | |
3114 | else | |
3115 | psrch_inf->unicode = FALSE; | |
3116 | response_data = (char *) &pSMBr->hdr.Protocol + | |
3117 | le16_to_cpu(pSMBr->t2.ParameterOffset); | |
3118 | parms = (T2_FNEXT_RSP_PARMS *)response_data; | |
3119 | response_data = (char *)&pSMBr->hdr.Protocol + | |
3120 | le16_to_cpu(pSMBr->t2.DataOffset); | |
3121 | cifs_buf_release(psrch_inf->ntwrk_buf_start); | |
3122 | psrch_inf->srch_entries_start = response_data; | |
3123 | psrch_inf->ntwrk_buf_start = (char *)pSMB; | |
3124 | if(parms->EndofSearch) | |
3125 | psrch_inf->endOfSearch = TRUE; | |
3126 | else | |
3127 | psrch_inf->endOfSearch = FALSE; | |
3128 | ||
3129 | psrch_inf->entries_in_buffer = le16_to_cpu(parms->SearchCount); | |
3130 | psrch_inf->index_of_last_entry += | |
3131 | psrch_inf->entries_in_buffer; | |
3132 | /* cFYI(1,("fnxt2 entries in buf %d index_of_last %d",psrch_inf->entries_in_buffer,psrch_inf->index_of_last_entry)); */ | |
3133 | ||
3134 | /* BB fixme add unlock here */ | |
3135 | } | |
3136 | ||
3137 | } | |
3138 | ||
3139 | /* BB On error, should we leave previous search buf (and count and | |
3140 | last entry fields) intact or free the previous one? */ | |
3141 | ||
3142 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
3143 | since file handle passed in no longer valid */ | |
3144 | FNext2_err_exit: | |
3145 | if (rc != 0) | |
3146 | cifs_buf_release(pSMB); | |
3147 | ||
3148 | return rc; | |
3149 | } | |
3150 | ||
3151 | int | |
3152 | CIFSFindClose(const int xid, struct cifsTconInfo *tcon, const __u16 searchHandle) | |
3153 | { | |
3154 | int rc = 0; | |
3155 | FINDCLOSE_REQ *pSMB = NULL; | |
3156 | CLOSE_RSP *pSMBr = NULL; /* BB removeme BB */ | |
3157 | int bytes_returned; | |
3158 | ||
3159 | cFYI(1, ("In CIFSSMBFindClose")); | |
3160 | rc = small_smb_init(SMB_COM_FIND_CLOSE2, 1, tcon, (void **)&pSMB); | |
3161 | ||
3162 | /* no sense returning error if session restarted | |
3163 | as file handle has been closed */ | |
3164 | if(rc == -EAGAIN) | |
3165 | return 0; | |
3166 | if (rc) | |
3167 | return rc; | |
3168 | ||
3169 | pSMBr = (CLOSE_RSP *)pSMB; /* BB removeme BB */ | |
3170 | pSMB->FileID = searchHandle; | |
3171 | pSMB->ByteCount = 0; | |
3172 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3173 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3174 | if (rc) { | |
3175 | cERROR(1, ("Send error in FindClose = %d", rc)); | |
3176 | } | |
a4544347 | 3177 | cifs_stats_inc(&tcon->num_fclose); |
1da177e4 LT |
3178 | cifs_small_buf_release(pSMB); |
3179 | ||
3180 | /* Since session is dead, search handle closed on server already */ | |
3181 | if (rc == -EAGAIN) | |
3182 | rc = 0; | |
3183 | ||
3184 | return rc; | |
3185 | } | |
3186 | ||
1da177e4 LT |
3187 | int |
3188 | CIFSGetSrvInodeNumber(const int xid, struct cifsTconInfo *tcon, | |
3189 | const unsigned char *searchName, | |
3190 | __u64 * inode_number, | |
737b758c | 3191 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
3192 | { |
3193 | int rc = 0; | |
3194 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
3195 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
3196 | int name_len, bytes_returned; | |
3197 | __u16 params, byte_count; | |
3198 | ||
3199 | cFYI(1,("In GetSrvInodeNum for %s",searchName)); | |
3200 | if(tcon == NULL) | |
3201 | return -ENODEV; | |
3202 | ||
3203 | GetInodeNumberRetry: | |
3204 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3205 | (void **) &pSMBr); | |
3206 | if (rc) | |
3207 | return rc; | |
3208 | ||
3209 | ||
3210 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3211 | name_len = | |
b1a45695 | 3212 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 3213 | PATH_MAX,nls_codepage, remap); |
1da177e4 LT |
3214 | name_len++; /* trailing null */ |
3215 | name_len *= 2; | |
3216 | } else { /* BB improve the check for buffer overruns BB */ | |
3217 | name_len = strnlen(searchName, PATH_MAX); | |
3218 | name_len++; /* trailing null */ | |
3219 | strncpy(pSMB->FileName, searchName, name_len); | |
3220 | } | |
3221 | ||
3222 | params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ; | |
3223 | pSMB->TotalDataCount = 0; | |
3224 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3225 | /* BB find exact max data count below from sess structure BB */ | |
3226 | pSMB->MaxDataCount = cpu_to_le16(4000); | |
3227 | pSMB->MaxSetupCount = 0; | |
3228 | pSMB->Reserved = 0; | |
3229 | pSMB->Flags = 0; | |
3230 | pSMB->Timeout = 0; | |
3231 | pSMB->Reserved2 = 0; | |
3232 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
3233 | struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); | |
3234 | pSMB->DataCount = 0; | |
3235 | pSMB->DataOffset = 0; | |
3236 | pSMB->SetupCount = 1; | |
3237 | pSMB->Reserved3 = 0; | |
3238 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
3239 | byte_count = params + 1 /* pad */ ; | |
3240 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3241 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3242 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_INTERNAL_INFO); | |
3243 | pSMB->Reserved4 = 0; | |
3244 | pSMB->hdr.smb_buf_length += byte_count; | |
3245 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3246 | ||
3247 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3248 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3249 | if (rc) { | |
3250 | cFYI(1, ("error %d in QueryInternalInfo", rc)); | |
3251 | } else { | |
3252 | /* decode response */ | |
3253 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3254 | if (rc || (pSMBr->ByteCount < 2)) | |
3255 | /* BB also check enough total bytes returned */ | |
3256 | /* If rc should we check for EOPNOSUPP and | |
3257 | disable the srvino flag? or in caller? */ | |
3258 | rc = -EIO; /* bad smb */ | |
3259 | else { | |
3260 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
3261 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); | |
3262 | struct file_internal_info * pfinfo; | |
3263 | /* BB Do we need a cast or hash here ? */ | |
3264 | if(count < 8) { | |
3265 | cFYI(1, ("Illegal size ret in QryIntrnlInf")); | |
3266 | rc = -EIO; | |
3267 | goto GetInodeNumOut; | |
3268 | } | |
3269 | pfinfo = (struct file_internal_info *) | |
3270 | (data_offset + (char *) &pSMBr->hdr.Protocol); | |
3271 | *inode_number = pfinfo->UniqueId; | |
3272 | } | |
3273 | } | |
3274 | GetInodeNumOut: | |
3275 | cifs_buf_release(pSMB); | |
3276 | if (rc == -EAGAIN) | |
3277 | goto GetInodeNumberRetry; | |
3278 | return rc; | |
3279 | } | |
1da177e4 LT |
3280 | |
3281 | int | |
3282 | CIFSGetDFSRefer(const int xid, struct cifsSesInfo *ses, | |
3283 | const unsigned char *searchName, | |
3284 | unsigned char **targetUNCs, | |
3285 | unsigned int *number_of_UNC_in_array, | |
737b758c | 3286 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
3287 | { |
3288 | /* TRANS2_GET_DFS_REFERRAL */ | |
3289 | TRANSACTION2_GET_DFS_REFER_REQ *pSMB = NULL; | |
3290 | TRANSACTION2_GET_DFS_REFER_RSP *pSMBr = NULL; | |
3291 | struct dfs_referral_level_3 * referrals = NULL; | |
3292 | int rc = 0; | |
3293 | int bytes_returned; | |
3294 | int name_len; | |
3295 | unsigned int i; | |
3296 | char * temp; | |
3297 | __u16 params, byte_count; | |
3298 | *number_of_UNC_in_array = 0; | |
3299 | *targetUNCs = NULL; | |
3300 | ||
3301 | cFYI(1, ("In GetDFSRefer the path %s", searchName)); | |
3302 | if (ses == NULL) | |
3303 | return -ENODEV; | |
3304 | getDFSRetry: | |
3305 | rc = smb_init(SMB_COM_TRANSACTION2, 15, NULL, (void **) &pSMB, | |
3306 | (void **) &pSMBr); | |
3307 | if (rc) | |
3308 | return rc; | |
1982c344 SF |
3309 | |
3310 | /* server pointer checked in called function, | |
3311 | but should never be null here anyway */ | |
3312 | pSMB->hdr.Mid = GetNextMid(ses->server); | |
1da177e4 LT |
3313 | pSMB->hdr.Tid = ses->ipc_tid; |
3314 | pSMB->hdr.Uid = ses->Suid; | |
3315 | if (ses->capabilities & CAP_STATUS32) { | |
3316 | pSMB->hdr.Flags2 |= SMBFLG2_ERR_STATUS; | |
3317 | } | |
3318 | if (ses->capabilities & CAP_DFS) { | |
3319 | pSMB->hdr.Flags2 |= SMBFLG2_DFS; | |
3320 | } | |
3321 | ||
3322 | if (ses->capabilities & CAP_UNICODE) { | |
3323 | pSMB->hdr.Flags2 |= SMBFLG2_UNICODE; | |
3324 | name_len = | |
b1a45695 | 3325 | cifsConvertToUCS((__le16 *) pSMB->RequestFileName, |
737b758c | 3326 | searchName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
3327 | name_len++; /* trailing null */ |
3328 | name_len *= 2; | |
3329 | } else { /* BB improve the check for buffer overruns BB */ | |
3330 | name_len = strnlen(searchName, PATH_MAX); | |
3331 | name_len++; /* trailing null */ | |
3332 | strncpy(pSMB->RequestFileName, searchName, name_len); | |
3333 | } | |
3334 | ||
3335 | params = 2 /* level */ + name_len /*includes null */ ; | |
3336 | pSMB->TotalDataCount = 0; | |
3337 | pSMB->DataCount = 0; | |
3338 | pSMB->DataOffset = 0; | |
3339 | pSMB->MaxParameterCount = 0; | |
3340 | pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ | |
3341 | pSMB->MaxSetupCount = 0; | |
3342 | pSMB->Reserved = 0; | |
3343 | pSMB->Flags = 0; | |
3344 | pSMB->Timeout = 0; | |
3345 | pSMB->Reserved2 = 0; | |
3346 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
3347 | struct smb_com_transaction2_get_dfs_refer_req, MaxReferralLevel) - 4); | |
3348 | pSMB->SetupCount = 1; | |
3349 | pSMB->Reserved3 = 0; | |
3350 | pSMB->SubCommand = cpu_to_le16(TRANS2_GET_DFS_REFERRAL); | |
3351 | byte_count = params + 3 /* pad */ ; | |
3352 | pSMB->ParameterCount = cpu_to_le16(params); | |
3353 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
3354 | pSMB->MaxReferralLevel = cpu_to_le16(3); | |
3355 | pSMB->hdr.smb_buf_length += byte_count; | |
3356 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3357 | ||
3358 | rc = SendReceive(xid, ses, (struct smb_hdr *) pSMB, | |
3359 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3360 | if (rc) { | |
3361 | cFYI(1, ("Send error in GetDFSRefer = %d", rc)); | |
3362 | } else { /* decode response */ | |
3363 | /* BB Add logic to parse referrals here */ | |
3364 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3365 | ||
3366 | if (rc || (pSMBr->ByteCount < 17)) /* BB also check enough total bytes returned */ | |
3367 | rc = -EIO; /* bad smb */ | |
3368 | else { | |
3369 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
3370 | __u16 data_count = le16_to_cpu(pSMBr->t2.DataCount); | |
3371 | ||
3372 | cFYI(1, | |
3373 | ("Decoding GetDFSRefer response. BCC: %d Offset %d", | |
3374 | pSMBr->ByteCount, data_offset)); | |
3375 | referrals = | |
3376 | (struct dfs_referral_level_3 *) | |
3377 | (8 /* sizeof start of data block */ + | |
3378 | data_offset + | |
3379 | (char *) &pSMBr->hdr.Protocol); | |
3380 | 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", | |
3381 | 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))); | |
3382 | /* BB This field is actually two bytes in from start of | |
3383 | data block so we could do safety check that DataBlock | |
3384 | begins at address of pSMBr->NumberOfReferrals */ | |
3385 | *number_of_UNC_in_array = le16_to_cpu(pSMBr->NumberOfReferrals); | |
3386 | ||
3387 | /* BB Fix below so can return more than one referral */ | |
3388 | if(*number_of_UNC_in_array > 1) | |
3389 | *number_of_UNC_in_array = 1; | |
3390 | ||
3391 | /* get the length of the strings describing refs */ | |
3392 | name_len = 0; | |
3393 | for(i=0;i<*number_of_UNC_in_array;i++) { | |
3394 | /* make sure that DfsPathOffset not past end */ | |
3395 | __u16 offset = le16_to_cpu(referrals->DfsPathOffset); | |
3396 | if (offset > data_count) { | |
3397 | /* if invalid referral, stop here and do | |
3398 | not try to copy any more */ | |
3399 | *number_of_UNC_in_array = i; | |
3400 | break; | |
3401 | } | |
3402 | temp = ((char *)referrals) + offset; | |
3403 | ||
3404 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3405 | name_len += UniStrnlen((wchar_t *)temp,data_count); | |
3406 | } else { | |
3407 | name_len += strnlen(temp,data_count); | |
3408 | } | |
3409 | referrals++; | |
3410 | /* BB add check that referral pointer does not fall off end PDU */ | |
3411 | ||
3412 | } | |
3413 | /* BB add check for name_len bigger than bcc */ | |
3414 | *targetUNCs = | |
3415 | kmalloc(name_len+1+ (*number_of_UNC_in_array),GFP_KERNEL); | |
3416 | if(*targetUNCs == NULL) { | |
3417 | rc = -ENOMEM; | |
3418 | goto GetDFSRefExit; | |
3419 | } | |
3420 | /* copy the ref strings */ | |
3421 | referrals = | |
3422 | (struct dfs_referral_level_3 *) | |
3423 | (8 /* sizeof data hdr */ + | |
3424 | data_offset + | |
3425 | (char *) &pSMBr->hdr.Protocol); | |
3426 | ||
3427 | for(i=0;i<*number_of_UNC_in_array;i++) { | |
3428 | temp = ((char *)referrals) + le16_to_cpu(referrals->DfsPathOffset); | |
3429 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3430 | cifs_strfromUCS_le(*targetUNCs, | |
e89dc920 | 3431 | (__le16 *) temp, name_len, nls_codepage); |
1da177e4 LT |
3432 | } else { |
3433 | strncpy(*targetUNCs,temp,name_len); | |
3434 | } | |
3435 | /* BB update target_uncs pointers */ | |
3436 | referrals++; | |
3437 | } | |
3438 | temp = *targetUNCs; | |
3439 | temp[name_len] = 0; | |
3440 | } | |
3441 | ||
3442 | } | |
3443 | GetDFSRefExit: | |
3444 | if (pSMB) | |
3445 | cifs_buf_release(pSMB); | |
3446 | ||
3447 | if (rc == -EAGAIN) | |
3448 | goto getDFSRetry; | |
3449 | ||
3450 | return rc; | |
3451 | } | |
3452 | ||
20962438 SF |
3453 | /* Query File System Info such as free space to old servers such as Win 9x */ |
3454 | int | |
3455 | SMBOldQFSInfo(const int xid, struct cifsTconInfo *tcon, struct kstatfs *FSData) | |
3456 | { | |
3457 | /* level 0x01 SMB_QUERY_FILE_SYSTEM_INFO */ | |
3458 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
3459 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
3460 | FILE_SYSTEM_ALLOC_INFO *response_data; | |
3461 | int rc = 0; | |
3462 | int bytes_returned = 0; | |
3463 | __u16 params, byte_count; | |
3464 | ||
3465 | cFYI(1, ("OldQFSInfo")); | |
3466 | oldQFSInfoRetry: | |
3467 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3468 | (void **) &pSMBr); | |
3469 | if (rc) | |
3470 | return rc; | |
3471 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3472 | (void **) &pSMBr); | |
3473 | if (rc) | |
3474 | return rc; | |
3475 | ||
3476 | params = 2; /* level */ | |
3477 | pSMB->TotalDataCount = 0; | |
3478 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3479 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
3480 | pSMB->MaxSetupCount = 0; | |
3481 | pSMB->Reserved = 0; | |
3482 | pSMB->Flags = 0; | |
3483 | pSMB->Timeout = 0; | |
3484 | pSMB->Reserved2 = 0; | |
3485 | byte_count = params + 1 /* pad */ ; | |
3486 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3487 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3488 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
3489 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
3490 | pSMB->DataCount = 0; | |
3491 | pSMB->DataOffset = 0; | |
3492 | pSMB->SetupCount = 1; | |
3493 | pSMB->Reserved3 = 0; | |
3494 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
3495 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_ALLOCATION); | |
3496 | pSMB->hdr.smb_buf_length += byte_count; | |
3497 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3498 | ||
3499 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3500 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3501 | if (rc) { | |
3502 | cFYI(1, ("Send error in QFSInfo = %d", rc)); | |
3503 | } else { /* decode response */ | |
3504 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3505 | ||
3506 | if (rc || (pSMBr->ByteCount < 18)) | |
3507 | rc = -EIO; /* bad smb */ | |
3508 | else { | |
3509 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
3510 | cFYI(1,("qfsinf resp BCC: %d Offset %d", | |
3511 | pSMBr->ByteCount, data_offset)); | |
3512 | ||
3513 | response_data = | |
3514 | (FILE_SYSTEM_ALLOC_INFO *) | |
3515 | (((char *) &pSMBr->hdr.Protocol) + data_offset); | |
3516 | FSData->f_bsize = | |
3517 | le16_to_cpu(response_data->BytesPerSector) * | |
3518 | le32_to_cpu(response_data-> | |
3519 | SectorsPerAllocationUnit); | |
3520 | FSData->f_blocks = | |
3521 | le32_to_cpu(response_data->TotalAllocationUnits); | |
3522 | FSData->f_bfree = FSData->f_bavail = | |
3523 | le32_to_cpu(response_data->FreeAllocationUnits); | |
3524 | cFYI(1, | |
3525 | ("Blocks: %lld Free: %lld Block size %ld", | |
3526 | (unsigned long long)FSData->f_blocks, | |
3527 | (unsigned long long)FSData->f_bfree, | |
3528 | FSData->f_bsize)); | |
3529 | } | |
3530 | } | |
3531 | cifs_buf_release(pSMB); | |
3532 | ||
3533 | if (rc == -EAGAIN) | |
3534 | goto oldQFSInfoRetry; | |
3535 | ||
3536 | return rc; | |
3537 | } | |
3538 | ||
1da177e4 | 3539 | int |
737b758c | 3540 | CIFSSMBQFSInfo(const int xid, struct cifsTconInfo *tcon, struct kstatfs *FSData) |
1da177e4 LT |
3541 | { |
3542 | /* level 0x103 SMB_QUERY_FILE_SYSTEM_INFO */ | |
3543 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
3544 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
3545 | FILE_SYSTEM_INFO *response_data; | |
3546 | int rc = 0; | |
3547 | int bytes_returned = 0; | |
3548 | __u16 params, byte_count; | |
3549 | ||
3550 | cFYI(1, ("In QFSInfo")); | |
3551 | QFSInfoRetry: | |
3552 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3553 | (void **) &pSMBr); | |
3554 | if (rc) | |
3555 | return rc; | |
3556 | ||
3557 | params = 2; /* level */ | |
3558 | pSMB->TotalDataCount = 0; | |
3559 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
20962438 | 3560 | pSMB->MaxDataCount = cpu_to_le16(1000); |
1da177e4 LT |
3561 | pSMB->MaxSetupCount = 0; |
3562 | pSMB->Reserved = 0; | |
3563 | pSMB->Flags = 0; | |
3564 | pSMB->Timeout = 0; | |
3565 | pSMB->Reserved2 = 0; | |
3566 | byte_count = params + 1 /* pad */ ; | |
3567 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3568 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3569 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
3570 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
3571 | pSMB->DataCount = 0; | |
3572 | pSMB->DataOffset = 0; | |
3573 | pSMB->SetupCount = 1; | |
3574 | pSMB->Reserved3 = 0; | |
3575 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
3576 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_SIZE_INFO); | |
3577 | pSMB->hdr.smb_buf_length += byte_count; | |
3578 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3579 | ||
3580 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3581 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3582 | if (rc) { | |
20962438 | 3583 | cFYI(1, ("Send error in QFSInfo = %d", rc)); |
1da177e4 LT |
3584 | } else { /* decode response */ |
3585 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3586 | ||
20962438 | 3587 | if (rc || (pSMBr->ByteCount < 24)) |
1da177e4 LT |
3588 | rc = -EIO; /* bad smb */ |
3589 | else { | |
3590 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
1da177e4 LT |
3591 | |
3592 | response_data = | |
3593 | (FILE_SYSTEM_INFO | |
3594 | *) (((char *) &pSMBr->hdr.Protocol) + | |
3595 | data_offset); | |
3596 | FSData->f_bsize = | |
3597 | le32_to_cpu(response_data->BytesPerSector) * | |
3598 | le32_to_cpu(response_data-> | |
3599 | SectorsPerAllocationUnit); | |
3600 | FSData->f_blocks = | |
3601 | le64_to_cpu(response_data->TotalAllocationUnits); | |
3602 | FSData->f_bfree = FSData->f_bavail = | |
3603 | le64_to_cpu(response_data->FreeAllocationUnits); | |
3604 | cFYI(1, | |
3605 | ("Blocks: %lld Free: %lld Block size %ld", | |
3606 | (unsigned long long)FSData->f_blocks, | |
3607 | (unsigned long long)FSData->f_bfree, | |
3608 | FSData->f_bsize)); | |
3609 | } | |
3610 | } | |
3611 | cifs_buf_release(pSMB); | |
3612 | ||
3613 | if (rc == -EAGAIN) | |
3614 | goto QFSInfoRetry; | |
3615 | ||
3616 | return rc; | |
3617 | } | |
3618 | ||
3619 | int | |
737b758c | 3620 | CIFSSMBQFSAttributeInfo(const int xid, struct cifsTconInfo *tcon) |
1da177e4 LT |
3621 | { |
3622 | /* level 0x105 SMB_QUERY_FILE_SYSTEM_INFO */ | |
3623 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
3624 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
3625 | FILE_SYSTEM_ATTRIBUTE_INFO *response_data; | |
3626 | int rc = 0; | |
3627 | int bytes_returned = 0; | |
3628 | __u16 params, byte_count; | |
3629 | ||
3630 | cFYI(1, ("In QFSAttributeInfo")); | |
3631 | QFSAttributeRetry: | |
3632 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3633 | (void **) &pSMBr); | |
3634 | if (rc) | |
3635 | return rc; | |
3636 | ||
3637 | params = 2; /* level */ | |
3638 | pSMB->TotalDataCount = 0; | |
3639 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3640 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find exact max SMB PDU from sess structure BB */ | |
3641 | pSMB->MaxSetupCount = 0; | |
3642 | pSMB->Reserved = 0; | |
3643 | pSMB->Flags = 0; | |
3644 | pSMB->Timeout = 0; | |
3645 | pSMB->Reserved2 = 0; | |
3646 | byte_count = params + 1 /* pad */ ; | |
3647 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3648 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3649 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
3650 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
3651 | pSMB->DataCount = 0; | |
3652 | pSMB->DataOffset = 0; | |
3653 | pSMB->SetupCount = 1; | |
3654 | pSMB->Reserved3 = 0; | |
3655 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
3656 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_ATTRIBUTE_INFO); | |
3657 | pSMB->hdr.smb_buf_length += byte_count; | |
3658 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3659 | ||
3660 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3661 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3662 | if (rc) { | |
3663 | cERROR(1, ("Send error in QFSAttributeInfo = %d", rc)); | |
3664 | } else { /* decode response */ | |
3665 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3666 | ||
3667 | if (rc || (pSMBr->ByteCount < 13)) { /* BB also check enough bytes returned */ | |
3668 | rc = -EIO; /* bad smb */ | |
3669 | } else { | |
3670 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
3671 | response_data = | |
3672 | (FILE_SYSTEM_ATTRIBUTE_INFO | |
3673 | *) (((char *) &pSMBr->hdr.Protocol) + | |
3674 | data_offset); | |
3675 | memcpy(&tcon->fsAttrInfo, response_data, | |
3676 | sizeof (FILE_SYSTEM_ATTRIBUTE_INFO)); | |
3677 | } | |
3678 | } | |
3679 | cifs_buf_release(pSMB); | |
3680 | ||
3681 | if (rc == -EAGAIN) | |
3682 | goto QFSAttributeRetry; | |
3683 | ||
3684 | return rc; | |
3685 | } | |
3686 | ||
3687 | int | |
737b758c | 3688 | CIFSSMBQFSDeviceInfo(const int xid, struct cifsTconInfo *tcon) |
1da177e4 LT |
3689 | { |
3690 | /* level 0x104 SMB_QUERY_FILE_SYSTEM_INFO */ | |
3691 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
3692 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
3693 | FILE_SYSTEM_DEVICE_INFO *response_data; | |
3694 | int rc = 0; | |
3695 | int bytes_returned = 0; | |
3696 | __u16 params, byte_count; | |
3697 | ||
3698 | cFYI(1, ("In QFSDeviceInfo")); | |
3699 | QFSDeviceRetry: | |
3700 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3701 | (void **) &pSMBr); | |
3702 | if (rc) | |
3703 | return rc; | |
3704 | ||
3705 | params = 2; /* level */ | |
3706 | pSMB->TotalDataCount = 0; | |
3707 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3708 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find exact max SMB PDU from sess structure BB */ | |
3709 | pSMB->MaxSetupCount = 0; | |
3710 | pSMB->Reserved = 0; | |
3711 | pSMB->Flags = 0; | |
3712 | pSMB->Timeout = 0; | |
3713 | pSMB->Reserved2 = 0; | |
3714 | byte_count = params + 1 /* pad */ ; | |
3715 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3716 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3717 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
3718 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
3719 | ||
3720 | pSMB->DataCount = 0; | |
3721 | pSMB->DataOffset = 0; | |
3722 | pSMB->SetupCount = 1; | |
3723 | pSMB->Reserved3 = 0; | |
3724 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
3725 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_DEVICE_INFO); | |
3726 | pSMB->hdr.smb_buf_length += byte_count; | |
3727 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3728 | ||
3729 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3730 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3731 | if (rc) { | |
3732 | cFYI(1, ("Send error in QFSDeviceInfo = %d", rc)); | |
3733 | } else { /* decode response */ | |
3734 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3735 | ||
3736 | if (rc || (pSMBr->ByteCount < sizeof (FILE_SYSTEM_DEVICE_INFO))) | |
3737 | rc = -EIO; /* bad smb */ | |
3738 | else { | |
3739 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
3740 | response_data = | |
737b758c SF |
3741 | (FILE_SYSTEM_DEVICE_INFO *) |
3742 | (((char *) &pSMBr->hdr.Protocol) + | |
1da177e4 LT |
3743 | data_offset); |
3744 | memcpy(&tcon->fsDevInfo, response_data, | |
3745 | sizeof (FILE_SYSTEM_DEVICE_INFO)); | |
3746 | } | |
3747 | } | |
3748 | cifs_buf_release(pSMB); | |
3749 | ||
3750 | if (rc == -EAGAIN) | |
3751 | goto QFSDeviceRetry; | |
3752 | ||
3753 | return rc; | |
3754 | } | |
3755 | ||
3756 | int | |
737b758c | 3757 | CIFSSMBQFSUnixInfo(const int xid, struct cifsTconInfo *tcon) |
1da177e4 LT |
3758 | { |
3759 | /* level 0x200 SMB_QUERY_CIFS_UNIX_INFO */ | |
3760 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
3761 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
3762 | FILE_SYSTEM_UNIX_INFO *response_data; | |
3763 | int rc = 0; | |
3764 | int bytes_returned = 0; | |
3765 | __u16 params, byte_count; | |
3766 | ||
3767 | cFYI(1, ("In QFSUnixInfo")); | |
3768 | QFSUnixRetry: | |
3769 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3770 | (void **) &pSMBr); | |
3771 | if (rc) | |
3772 | return rc; | |
3773 | ||
3774 | params = 2; /* level */ | |
3775 | pSMB->TotalDataCount = 0; | |
3776 | pSMB->DataCount = 0; | |
3777 | pSMB->DataOffset = 0; | |
3778 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3779 | pSMB->MaxDataCount = cpu_to_le16(100); /* BB find exact max SMB PDU from sess structure BB */ | |
3780 | pSMB->MaxSetupCount = 0; | |
3781 | pSMB->Reserved = 0; | |
3782 | pSMB->Flags = 0; | |
3783 | pSMB->Timeout = 0; | |
3784 | pSMB->Reserved2 = 0; | |
3785 | byte_count = params + 1 /* pad */ ; | |
3786 | pSMB->ParameterCount = cpu_to_le16(params); | |
3787 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
3788 | pSMB->ParameterOffset = cpu_to_le16(offsetof(struct | |
3789 | smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
3790 | pSMB->SetupCount = 1; | |
3791 | pSMB->Reserved3 = 0; | |
3792 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
3793 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_CIFS_UNIX_INFO); | |
3794 | pSMB->hdr.smb_buf_length += byte_count; | |
3795 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3796 | ||
3797 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3798 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3799 | if (rc) { | |
3800 | cERROR(1, ("Send error in QFSUnixInfo = %d", rc)); | |
3801 | } else { /* decode response */ | |
3802 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3803 | ||
3804 | if (rc || (pSMBr->ByteCount < 13)) { | |
3805 | rc = -EIO; /* bad smb */ | |
3806 | } else { | |
3807 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
3808 | response_data = | |
3809 | (FILE_SYSTEM_UNIX_INFO | |
3810 | *) (((char *) &pSMBr->hdr.Protocol) + | |
3811 | data_offset); | |
3812 | memcpy(&tcon->fsUnixInfo, response_data, | |
3813 | sizeof (FILE_SYSTEM_UNIX_INFO)); | |
3814 | } | |
3815 | } | |
3816 | cifs_buf_release(pSMB); | |
3817 | ||
3818 | if (rc == -EAGAIN) | |
3819 | goto QFSUnixRetry; | |
3820 | ||
3821 | ||
3822 | return rc; | |
3823 | } | |
3824 | ||
ac67055e | 3825 | int |
45abc6ee | 3826 | CIFSSMBSetFSUnixInfo(const int xid, struct cifsTconInfo *tcon, __u64 cap) |
ac67055e JA |
3827 | { |
3828 | /* level 0x200 SMB_SET_CIFS_UNIX_INFO */ | |
3829 | TRANSACTION2_SETFSI_REQ *pSMB = NULL; | |
3830 | TRANSACTION2_SETFSI_RSP *pSMBr = NULL; | |
3831 | int rc = 0; | |
3832 | int bytes_returned = 0; | |
3833 | __u16 params, param_offset, offset, byte_count; | |
3834 | ||
3835 | cFYI(1, ("In SETFSUnixInfo")); | |
3836 | SETFSUnixRetry: | |
3837 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3838 | (void **) &pSMBr); | |
3839 | if (rc) | |
3840 | return rc; | |
3841 | ||
3842 | params = 4; /* 2 bytes zero followed by info level. */ | |
3843 | pSMB->MaxSetupCount = 0; | |
3844 | pSMB->Reserved = 0; | |
3845 | pSMB->Flags = 0; | |
3846 | pSMB->Timeout = 0; | |
3847 | pSMB->Reserved2 = 0; | |
3848 | param_offset = offsetof(struct smb_com_transaction2_setfsi_req, FileNum) - 4; | |
3849 | offset = param_offset + params; | |
3850 | ||
3851 | pSMB->MaxParameterCount = cpu_to_le16(4); | |
3852 | pSMB->MaxDataCount = cpu_to_le16(100); /* BB find exact max SMB PDU from sess structure BB */ | |
3853 | pSMB->SetupCount = 1; | |
3854 | pSMB->Reserved3 = 0; | |
3855 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FS_INFORMATION); | |
3856 | byte_count = 1 /* pad */ + params + 12; | |
3857 | ||
3858 | pSMB->DataCount = cpu_to_le16(12); | |
3859 | pSMB->ParameterCount = cpu_to_le16(params); | |
3860 | pSMB->TotalDataCount = pSMB->DataCount; | |
3861 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
3862 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
3863 | pSMB->DataOffset = cpu_to_le16(offset); | |
3864 | ||
3865 | /* Params. */ | |
3866 | pSMB->FileNum = 0; | |
3867 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_CIFS_UNIX_INFO); | |
3868 | ||
3869 | /* Data. */ | |
3870 | pSMB->ClientUnixMajor = cpu_to_le16(CIFS_UNIX_MAJOR_VERSION); | |
3871 | pSMB->ClientUnixMinor = cpu_to_le16(CIFS_UNIX_MINOR_VERSION); | |
3872 | pSMB->ClientUnixCap = cpu_to_le64(cap); | |
3873 | ||
3874 | pSMB->hdr.smb_buf_length += byte_count; | |
3875 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3876 | ||
3877 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3878 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3879 | if (rc) { | |
3880 | cERROR(1, ("Send error in SETFSUnixInfo = %d", rc)); | |
3881 | } else { /* decode response */ | |
3882 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3883 | if (rc) { | |
3884 | rc = -EIO; /* bad smb */ | |
3885 | } | |
3886 | } | |
3887 | cifs_buf_release(pSMB); | |
3888 | ||
3889 | if (rc == -EAGAIN) | |
3890 | goto SETFSUnixRetry; | |
3891 | ||
3892 | return rc; | |
3893 | } | |
3894 | ||
3895 | ||
1da177e4 LT |
3896 | |
3897 | int | |
3898 | CIFSSMBQFSPosixInfo(const int xid, struct cifsTconInfo *tcon, | |
737b758c | 3899 | struct kstatfs *FSData) |
1da177e4 LT |
3900 | { |
3901 | /* level 0x201 SMB_QUERY_CIFS_POSIX_INFO */ | |
3902 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
3903 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
3904 | FILE_SYSTEM_POSIX_INFO *response_data; | |
3905 | int rc = 0; | |
3906 | int bytes_returned = 0; | |
3907 | __u16 params, byte_count; | |
3908 | ||
3909 | cFYI(1, ("In QFSPosixInfo")); | |
3910 | QFSPosixRetry: | |
3911 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3912 | (void **) &pSMBr); | |
3913 | if (rc) | |
3914 | return rc; | |
3915 | ||
3916 | params = 2; /* level */ | |
3917 | pSMB->TotalDataCount = 0; | |
3918 | pSMB->DataCount = 0; | |
3919 | pSMB->DataOffset = 0; | |
3920 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3921 | pSMB->MaxDataCount = cpu_to_le16(100); /* BB find exact max SMB PDU from sess structure BB */ | |
3922 | pSMB->MaxSetupCount = 0; | |
3923 | pSMB->Reserved = 0; | |
3924 | pSMB->Flags = 0; | |
3925 | pSMB->Timeout = 0; | |
3926 | pSMB->Reserved2 = 0; | |
3927 | byte_count = params + 1 /* pad */ ; | |
3928 | pSMB->ParameterCount = cpu_to_le16(params); | |
3929 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
3930 | pSMB->ParameterOffset = cpu_to_le16(offsetof(struct | |
3931 | smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
3932 | pSMB->SetupCount = 1; | |
3933 | pSMB->Reserved3 = 0; | |
3934 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
3935 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_POSIX_FS_INFO); | |
3936 | pSMB->hdr.smb_buf_length += byte_count; | |
3937 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3938 | ||
3939 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3940 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3941 | if (rc) { | |
3942 | cFYI(1, ("Send error in QFSUnixInfo = %d", rc)); | |
3943 | } else { /* decode response */ | |
3944 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3945 | ||
3946 | if (rc || (pSMBr->ByteCount < 13)) { | |
3947 | rc = -EIO; /* bad smb */ | |
3948 | } else { | |
3949 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
3950 | response_data = | |
3951 | (FILE_SYSTEM_POSIX_INFO | |
3952 | *) (((char *) &pSMBr->hdr.Protocol) + | |
3953 | data_offset); | |
3954 | FSData->f_bsize = | |
3955 | le32_to_cpu(response_data->BlockSize); | |
3956 | FSData->f_blocks = | |
3957 | le64_to_cpu(response_data->TotalBlocks); | |
3958 | FSData->f_bfree = | |
3959 | le64_to_cpu(response_data->BlocksAvail); | |
70ca734a | 3960 | if(response_data->UserBlocksAvail == cpu_to_le64(-1)) { |
1da177e4 LT |
3961 | FSData->f_bavail = FSData->f_bfree; |
3962 | } else { | |
3963 | FSData->f_bavail = | |
3964 | le64_to_cpu(response_data->UserBlocksAvail); | |
3965 | } | |
70ca734a | 3966 | if(response_data->TotalFileNodes != cpu_to_le64(-1)) |
1da177e4 LT |
3967 | FSData->f_files = |
3968 | le64_to_cpu(response_data->TotalFileNodes); | |
70ca734a | 3969 | if(response_data->FreeFileNodes != cpu_to_le64(-1)) |
1da177e4 LT |
3970 | FSData->f_ffree = |
3971 | le64_to_cpu(response_data->FreeFileNodes); | |
3972 | } | |
3973 | } | |
3974 | cifs_buf_release(pSMB); | |
3975 | ||
3976 | if (rc == -EAGAIN) | |
3977 | goto QFSPosixRetry; | |
3978 | ||
3979 | return rc; | |
3980 | } | |
3981 | ||
3982 | ||
3983 | /* We can not use write of zero bytes trick to | |
3984 | set file size due to need for large file support. Also note that | |
3985 | this SetPathInfo is preferred to SetFileInfo based method in next | |
3986 | routine which is only needed to work around a sharing violation bug | |
3987 | in Samba which this routine can run into */ | |
3988 | ||
3989 | int | |
3990 | CIFSSMBSetEOF(const int xid, struct cifsTconInfo *tcon, const char *fileName, | |
737b758c SF |
3991 | __u64 size, int SetAllocation, |
3992 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
3993 | { |
3994 | struct smb_com_transaction2_spi_req *pSMB = NULL; | |
3995 | struct smb_com_transaction2_spi_rsp *pSMBr = NULL; | |
3996 | struct file_end_of_file_info *parm_data; | |
3997 | int name_len; | |
3998 | int rc = 0; | |
3999 | int bytes_returned = 0; | |
4000 | __u16 params, byte_count, data_count, param_offset, offset; | |
4001 | ||
4002 | cFYI(1, ("In SetEOF")); | |
4003 | SetEOFRetry: | |
4004 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4005 | (void **) &pSMBr); | |
4006 | if (rc) | |
4007 | return rc; | |
4008 | ||
4009 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
4010 | name_len = | |
b1a45695 | 4011 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 4012 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
4013 | name_len++; /* trailing null */ |
4014 | name_len *= 2; | |
3e87d803 | 4015 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
4016 | name_len = strnlen(fileName, PATH_MAX); |
4017 | name_len++; /* trailing null */ | |
4018 | strncpy(pSMB->FileName, fileName, name_len); | |
4019 | } | |
4020 | params = 6 + name_len; | |
4021 | data_count = sizeof (struct file_end_of_file_info); | |
4022 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3e87d803 | 4023 | pSMB->MaxDataCount = cpu_to_le16(4100); |
1da177e4 LT |
4024 | pSMB->MaxSetupCount = 0; |
4025 | pSMB->Reserved = 0; | |
4026 | pSMB->Flags = 0; | |
4027 | pSMB->Timeout = 0; | |
4028 | pSMB->Reserved2 = 0; | |
4029 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
4030 | InformationLevel) - 4; | |
4031 | offset = param_offset + params; | |
4032 | if(SetAllocation) { | |
4033 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) | |
4034 | pSMB->InformationLevel = | |
4035 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO2); | |
4036 | else | |
4037 | pSMB->InformationLevel = | |
4038 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO); | |
4039 | } else /* Set File Size */ { | |
4040 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) | |
4041 | pSMB->InformationLevel = | |
4042 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO2); | |
4043 | else | |
4044 | pSMB->InformationLevel = | |
4045 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO); | |
4046 | } | |
4047 | ||
4048 | parm_data = | |
4049 | (struct file_end_of_file_info *) (((char *) &pSMB->hdr.Protocol) + | |
4050 | offset); | |
4051 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4052 | pSMB->DataOffset = cpu_to_le16(offset); | |
4053 | pSMB->SetupCount = 1; | |
4054 | pSMB->Reserved3 = 0; | |
4055 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
4056 | byte_count = 3 /* pad */ + params + data_count; | |
4057 | pSMB->DataCount = cpu_to_le16(data_count); | |
4058 | pSMB->TotalDataCount = pSMB->DataCount; | |
4059 | pSMB->ParameterCount = cpu_to_le16(params); | |
4060 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4061 | pSMB->Reserved4 = 0; | |
4062 | pSMB->hdr.smb_buf_length += byte_count; | |
4063 | parm_data->FileSize = cpu_to_le64(size); | |
4064 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4065 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4066 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4067 | if (rc) { | |
4068 | cFYI(1, ("SetPathInfo (file size) returned %d", rc)); | |
4069 | } | |
4070 | ||
4071 | cifs_buf_release(pSMB); | |
4072 | ||
4073 | if (rc == -EAGAIN) | |
4074 | goto SetEOFRetry; | |
4075 | ||
4076 | return rc; | |
4077 | } | |
4078 | ||
4079 | int | |
4080 | CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon, __u64 size, | |
4081 | __u16 fid, __u32 pid_of_opener, int SetAllocation) | |
4082 | { | |
4083 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
4084 | struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; | |
4085 | char *data_offset; | |
4086 | struct file_end_of_file_info *parm_data; | |
4087 | int rc = 0; | |
4088 | int bytes_returned = 0; | |
4089 | __u16 params, param_offset, offset, byte_count, count; | |
4090 | ||
4091 | cFYI(1, ("SetFileSize (via SetFileInfo) %lld", | |
4092 | (long long)size)); | |
cd63499c SF |
4093 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
4094 | ||
1da177e4 LT |
4095 | if (rc) |
4096 | return rc; | |
4097 | ||
cd63499c SF |
4098 | pSMBr = (struct smb_com_transaction2_sfi_rsp *)pSMB; |
4099 | ||
1da177e4 LT |
4100 | pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener); |
4101 | pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16)); | |
4102 | ||
4103 | params = 6; | |
4104 | pSMB->MaxSetupCount = 0; | |
4105 | pSMB->Reserved = 0; | |
4106 | pSMB->Flags = 0; | |
4107 | pSMB->Timeout = 0; | |
4108 | pSMB->Reserved2 = 0; | |
4109 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
4110 | offset = param_offset + params; | |
4111 | ||
4112 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
4113 | ||
4114 | count = sizeof(struct file_end_of_file_info); | |
4115 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4116 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB PDU from sess */ | |
4117 | pSMB->SetupCount = 1; | |
4118 | pSMB->Reserved3 = 0; | |
4119 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
4120 | byte_count = 3 /* pad */ + params + count; | |
4121 | pSMB->DataCount = cpu_to_le16(count); | |
4122 | pSMB->ParameterCount = cpu_to_le16(params); | |
4123 | pSMB->TotalDataCount = pSMB->DataCount; | |
4124 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4125 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4126 | parm_data = | |
4127 | (struct file_end_of_file_info *) (((char *) &pSMB->hdr.Protocol) + | |
4128 | offset); | |
4129 | pSMB->DataOffset = cpu_to_le16(offset); | |
4130 | parm_data->FileSize = cpu_to_le64(size); | |
4131 | pSMB->Fid = fid; | |
4132 | if(SetAllocation) { | |
4133 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) | |
4134 | pSMB->InformationLevel = | |
4135 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO2); | |
4136 | else | |
4137 | pSMB->InformationLevel = | |
4138 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO); | |
4139 | } else /* Set File Size */ { | |
4140 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) | |
4141 | pSMB->InformationLevel = | |
4142 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO2); | |
4143 | else | |
4144 | pSMB->InformationLevel = | |
4145 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO); | |
4146 | } | |
4147 | pSMB->Reserved4 = 0; | |
4148 | pSMB->hdr.smb_buf_length += byte_count; | |
4149 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4150 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4151 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4152 | if (rc) { | |
4153 | cFYI(1, | |
4154 | ("Send error in SetFileInfo (SetFileSize) = %d", | |
4155 | rc)); | |
4156 | } | |
4157 | ||
4158 | if (pSMB) | |
cd63499c | 4159 | cifs_small_buf_release(pSMB); |
1da177e4 LT |
4160 | |
4161 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
4162 | since file handle passed in no longer valid */ | |
4163 | ||
4164 | return rc; | |
4165 | } | |
4166 | ||
4167 | /* Some legacy servers such as NT4 require that the file times be set on | |
4168 | an open handle, rather than by pathname - this is awkward due to | |
4169 | potential access conflicts on the open, but it is unavoidable for these | |
4170 | old servers since the only other choice is to go from 100 nanosecond DCE | |
4171 | time and resort to the original setpathinfo level which takes the ancient | |
4172 | DOS time format with 2 second granularity */ | |
4173 | int | |
4174 | CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon, const FILE_BASIC_INFO * data, | |
4175 | __u16 fid) | |
4176 | { | |
4177 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
4178 | struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; | |
4179 | char *data_offset; | |
4180 | int rc = 0; | |
4181 | int bytes_returned = 0; | |
4182 | __u16 params, param_offset, offset, byte_count, count; | |
4183 | ||
4184 | cFYI(1, ("Set Times (via SetFileInfo)")); | |
cd63499c SF |
4185 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
4186 | ||
1da177e4 LT |
4187 | if (rc) |
4188 | return rc; | |
4189 | ||
cd63499c SF |
4190 | pSMBr = (struct smb_com_transaction2_sfi_rsp *)pSMB; |
4191 | ||
1da177e4 LT |
4192 | /* At this point there is no need to override the current pid |
4193 | with the pid of the opener, but that could change if we someday | |
4194 | use an existing handle (rather than opening one on the fly) */ | |
4195 | /* pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener); | |
4196 | pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16));*/ | |
4197 | ||
4198 | params = 6; | |
4199 | pSMB->MaxSetupCount = 0; | |
4200 | pSMB->Reserved = 0; | |
4201 | pSMB->Flags = 0; | |
4202 | pSMB->Timeout = 0; | |
4203 | pSMB->Reserved2 = 0; | |
4204 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
4205 | offset = param_offset + params; | |
4206 | ||
4207 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
4208 | ||
4209 | count = sizeof (FILE_BASIC_INFO); | |
4210 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4211 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB PDU from sess */ | |
4212 | pSMB->SetupCount = 1; | |
4213 | pSMB->Reserved3 = 0; | |
4214 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
4215 | byte_count = 3 /* pad */ + params + count; | |
4216 | pSMB->DataCount = cpu_to_le16(count); | |
4217 | pSMB->ParameterCount = cpu_to_le16(params); | |
4218 | pSMB->TotalDataCount = pSMB->DataCount; | |
4219 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4220 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4221 | pSMB->DataOffset = cpu_to_le16(offset); | |
4222 | pSMB->Fid = fid; | |
4223 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) | |
4224 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO2); | |
4225 | else | |
4226 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO); | |
4227 | pSMB->Reserved4 = 0; | |
4228 | pSMB->hdr.smb_buf_length += byte_count; | |
4229 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4230 | memcpy(data_offset,data,sizeof(FILE_BASIC_INFO)); | |
4231 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4232 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4233 | if (rc) { | |
4234 | cFYI(1,("Send error in Set Time (SetFileInfo) = %d",rc)); | |
4235 | } | |
4236 | ||
cd63499c | 4237 | cifs_small_buf_release(pSMB); |
1da177e4 LT |
4238 | |
4239 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
4240 | since file handle passed in no longer valid */ | |
4241 | ||
4242 | return rc; | |
4243 | } | |
4244 | ||
4245 | ||
4246 | int | |
4247 | CIFSSMBSetTimes(const int xid, struct cifsTconInfo *tcon, const char *fileName, | |
4248 | const FILE_BASIC_INFO * data, | |
737b758c | 4249 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
4250 | { |
4251 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
4252 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
4253 | int name_len; | |
4254 | int rc = 0; | |
4255 | int bytes_returned = 0; | |
4256 | char *data_offset; | |
4257 | __u16 params, param_offset, offset, byte_count, count; | |
4258 | ||
4259 | cFYI(1, ("In SetTimes")); | |
4260 | ||
4261 | SetTimesRetry: | |
4262 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4263 | (void **) &pSMBr); | |
4264 | if (rc) | |
4265 | return rc; | |
4266 | ||
4267 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
4268 | name_len = | |
b1a45695 | 4269 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 4270 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
4271 | name_len++; /* trailing null */ |
4272 | name_len *= 2; | |
4273 | } else { /* BB improve the check for buffer overruns BB */ | |
4274 | name_len = strnlen(fileName, PATH_MAX); | |
4275 | name_len++; /* trailing null */ | |
4276 | strncpy(pSMB->FileName, fileName, name_len); | |
4277 | } | |
4278 | ||
4279 | params = 6 + name_len; | |
4280 | count = sizeof (FILE_BASIC_INFO); | |
4281 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4282 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find exact max SMB PDU from sess structure BB */ | |
4283 | pSMB->MaxSetupCount = 0; | |
4284 | pSMB->Reserved = 0; | |
4285 | pSMB->Flags = 0; | |
4286 | pSMB->Timeout = 0; | |
4287 | pSMB->Reserved2 = 0; | |
4288 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
4289 | InformationLevel) - 4; | |
4290 | offset = param_offset + params; | |
4291 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
4292 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4293 | pSMB->DataOffset = cpu_to_le16(offset); | |
4294 | pSMB->SetupCount = 1; | |
4295 | pSMB->Reserved3 = 0; | |
4296 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
4297 | byte_count = 3 /* pad */ + params + count; | |
4298 | ||
4299 | pSMB->DataCount = cpu_to_le16(count); | |
4300 | pSMB->ParameterCount = cpu_to_le16(params); | |
4301 | pSMB->TotalDataCount = pSMB->DataCount; | |
4302 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4303 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) | |
4304 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO2); | |
4305 | else | |
4306 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO); | |
4307 | pSMB->Reserved4 = 0; | |
4308 | pSMB->hdr.smb_buf_length += byte_count; | |
4309 | memcpy(data_offset, data, sizeof (FILE_BASIC_INFO)); | |
4310 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4311 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4312 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4313 | if (rc) { | |
4314 | cFYI(1, ("SetPathInfo (times) returned %d", rc)); | |
4315 | } | |
4316 | ||
4317 | cifs_buf_release(pSMB); | |
4318 | ||
4319 | if (rc == -EAGAIN) | |
4320 | goto SetTimesRetry; | |
4321 | ||
4322 | return rc; | |
4323 | } | |
4324 | ||
4325 | /* Can not be used to set time stamps yet (due to old DOS time format) */ | |
4326 | /* Can be used to set attributes */ | |
4327 | #if 0 /* Possibly not needed - since it turns out that strangely NT4 has a bug | |
4328 | handling it anyway and NT4 was what we thought it would be needed for | |
4329 | Do not delete it until we prove whether needed for Win9x though */ | |
4330 | int | |
4331 | CIFSSMBSetAttrLegacy(int xid, struct cifsTconInfo *tcon, char *fileName, | |
4332 | __u16 dos_attrs, const struct nls_table *nls_codepage) | |
4333 | { | |
4334 | SETATTR_REQ *pSMB = NULL; | |
4335 | SETATTR_RSP *pSMBr = NULL; | |
4336 | int rc = 0; | |
4337 | int bytes_returned; | |
4338 | int name_len; | |
4339 | ||
4340 | cFYI(1, ("In SetAttrLegacy")); | |
4341 | ||
4342 | SetAttrLgcyRetry: | |
4343 | rc = smb_init(SMB_COM_SETATTR, 8, tcon, (void **) &pSMB, | |
4344 | (void **) &pSMBr); | |
4345 | if (rc) | |
4346 | return rc; | |
4347 | ||
4348 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
4349 | name_len = | |
b1a45695 | 4350 | ConvertToUCS((__le16 *) pSMB->fileName, fileName, |
1da177e4 LT |
4351 | PATH_MAX, nls_codepage); |
4352 | name_len++; /* trailing null */ | |
4353 | name_len *= 2; | |
4354 | } else { /* BB improve the check for buffer overruns BB */ | |
4355 | name_len = strnlen(fileName, PATH_MAX); | |
4356 | name_len++; /* trailing null */ | |
4357 | strncpy(pSMB->fileName, fileName, name_len); | |
4358 | } | |
4359 | pSMB->attr = cpu_to_le16(dos_attrs); | |
4360 | pSMB->BufferFormat = 0x04; | |
4361 | pSMB->hdr.smb_buf_length += name_len + 1; | |
4362 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
4363 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4364 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4365 | if (rc) { | |
4366 | cFYI(1, ("Error in LegacySetAttr = %d", rc)); | |
4367 | } | |
4368 | ||
4369 | cifs_buf_release(pSMB); | |
4370 | ||
4371 | if (rc == -EAGAIN) | |
4372 | goto SetAttrLgcyRetry; | |
4373 | ||
4374 | return rc; | |
4375 | } | |
4376 | #endif /* temporarily unneeded SetAttr legacy function */ | |
4377 | ||
4378 | int | |
4379 | CIFSSMBUnixSetPerms(const int xid, struct cifsTconInfo *tcon, | |
737b758c SF |
4380 | char *fileName, __u64 mode, __u64 uid, __u64 gid, |
4381 | dev_t device, const struct nls_table *nls_codepage, | |
4382 | int remap) | |
1da177e4 LT |
4383 | { |
4384 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
4385 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
4386 | int name_len; | |
4387 | int rc = 0; | |
4388 | int bytes_returned = 0; | |
4389 | FILE_UNIX_BASIC_INFO *data_offset; | |
4390 | __u16 params, param_offset, offset, count, byte_count; | |
4391 | ||
4392 | cFYI(1, ("In SetUID/GID/Mode")); | |
4393 | setPermsRetry: | |
4394 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4395 | (void **) &pSMBr); | |
4396 | if (rc) | |
4397 | return rc; | |
4398 | ||
4399 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
4400 | name_len = | |
b1a45695 | 4401 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 4402 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
4403 | name_len++; /* trailing null */ |
4404 | name_len *= 2; | |
3e87d803 | 4405 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
4406 | name_len = strnlen(fileName, PATH_MAX); |
4407 | name_len++; /* trailing null */ | |
4408 | strncpy(pSMB->FileName, fileName, name_len); | |
4409 | } | |
4410 | ||
4411 | params = 6 + name_len; | |
4412 | count = sizeof (FILE_UNIX_BASIC_INFO); | |
4413 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4414 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find exact max SMB PDU from sess structure BB */ | |
4415 | pSMB->MaxSetupCount = 0; | |
4416 | pSMB->Reserved = 0; | |
4417 | pSMB->Flags = 0; | |
4418 | pSMB->Timeout = 0; | |
4419 | pSMB->Reserved2 = 0; | |
4420 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
4421 | InformationLevel) - 4; | |
4422 | offset = param_offset + params; | |
4423 | data_offset = | |
4424 | (FILE_UNIX_BASIC_INFO *) ((char *) &pSMB->hdr.Protocol + | |
4425 | offset); | |
4426 | memset(data_offset, 0, count); | |
4427 | pSMB->DataOffset = cpu_to_le16(offset); | |
4428 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4429 | pSMB->SetupCount = 1; | |
4430 | pSMB->Reserved3 = 0; | |
4431 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
4432 | byte_count = 3 /* pad */ + params + count; | |
4433 | pSMB->ParameterCount = cpu_to_le16(params); | |
4434 | pSMB->DataCount = cpu_to_le16(count); | |
4435 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4436 | pSMB->TotalDataCount = pSMB->DataCount; | |
4437 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_BASIC); | |
4438 | pSMB->Reserved4 = 0; | |
4439 | pSMB->hdr.smb_buf_length += byte_count; | |
4440 | data_offset->Uid = cpu_to_le64(uid); | |
4441 | data_offset->Gid = cpu_to_le64(gid); | |
4442 | /* better to leave device as zero when it is */ | |
4443 | data_offset->DevMajor = cpu_to_le64(MAJOR(device)); | |
4444 | data_offset->DevMinor = cpu_to_le64(MINOR(device)); | |
4445 | data_offset->Permissions = cpu_to_le64(mode); | |
4446 | ||
4447 | if(S_ISREG(mode)) | |
4448 | data_offset->Type = cpu_to_le32(UNIX_FILE); | |
4449 | else if(S_ISDIR(mode)) | |
4450 | data_offset->Type = cpu_to_le32(UNIX_DIR); | |
4451 | else if(S_ISLNK(mode)) | |
4452 | data_offset->Type = cpu_to_le32(UNIX_SYMLINK); | |
4453 | else if(S_ISCHR(mode)) | |
4454 | data_offset->Type = cpu_to_le32(UNIX_CHARDEV); | |
4455 | else if(S_ISBLK(mode)) | |
4456 | data_offset->Type = cpu_to_le32(UNIX_BLOCKDEV); | |
4457 | else if(S_ISFIFO(mode)) | |
4458 | data_offset->Type = cpu_to_le32(UNIX_FIFO); | |
4459 | else if(S_ISSOCK(mode)) | |
4460 | data_offset->Type = cpu_to_le32(UNIX_SOCKET); | |
4461 | ||
4462 | ||
4463 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4464 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4465 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4466 | if (rc) { | |
4467 | cFYI(1, ("SetPathInfo (perms) returned %d", rc)); | |
4468 | } | |
4469 | ||
4470 | if (pSMB) | |
4471 | cifs_buf_release(pSMB); | |
4472 | if (rc == -EAGAIN) | |
4473 | goto setPermsRetry; | |
4474 | return rc; | |
4475 | } | |
4476 | ||
4477 | int CIFSSMBNotify(const int xid, struct cifsTconInfo *tcon, | |
167a251a SF |
4478 | const int notify_subdirs, const __u16 netfid, |
4479 | __u32 filter, struct file * pfile, int multishot, | |
4480 | const struct nls_table *nls_codepage) | |
1da177e4 LT |
4481 | { |
4482 | int rc = 0; | |
4483 | struct smb_com_transaction_change_notify_req * pSMB = NULL; | |
0a4b92c0 | 4484 | struct smb_com_ntransaction_change_notify_rsp * pSMBr = NULL; |
abb15b8a | 4485 | struct dir_notify_req *dnotify_req; |
1da177e4 LT |
4486 | int bytes_returned; |
4487 | ||
4488 | cFYI(1, ("In CIFSSMBNotify for file handle %d",(int)netfid)); | |
4489 | rc = smb_init(SMB_COM_NT_TRANSACT, 23, tcon, (void **) &pSMB, | |
4490 | (void **) &pSMBr); | |
4491 | if (rc) | |
4492 | return rc; | |
4493 | ||
4494 | pSMB->TotalParameterCount = 0 ; | |
4495 | pSMB->TotalDataCount = 0; | |
4496 | pSMB->MaxParameterCount = cpu_to_le32(2); | |
4497 | /* BB find exact data count max from sess structure BB */ | |
4498 | pSMB->MaxDataCount = 0; /* same in little endian or be */ | |
0a4b92c0 SF |
4499 | /* BB VERIFY verify which is correct for above BB */ |
4500 | pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf - | |
4501 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
4502 | ||
1da177e4 LT |
4503 | pSMB->MaxSetupCount = 4; |
4504 | pSMB->Reserved = 0; | |
4505 | pSMB->ParameterOffset = 0; | |
4506 | pSMB->DataCount = 0; | |
4507 | pSMB->DataOffset = 0; | |
4508 | pSMB->SetupCount = 4; /* single byte does not need le conversion */ | |
4509 | pSMB->SubCommand = cpu_to_le16(NT_TRANSACT_NOTIFY_CHANGE); | |
4510 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
4511 | if(notify_subdirs) | |
4512 | pSMB->WatchTree = 1; /* one byte - no le conversion needed */ | |
4513 | pSMB->Reserved2 = 0; | |
4514 | pSMB->CompletionFilter = cpu_to_le32(filter); | |
4515 | pSMB->Fid = netfid; /* file handle always le */ | |
4516 | pSMB->ByteCount = 0; | |
4517 | ||
4518 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4519 | (struct smb_hdr *) pSMBr, &bytes_returned, -1); | |
4520 | if (rc) { | |
4521 | cFYI(1, ("Error in Notify = %d", rc)); | |
ff5dbd9e SF |
4522 | } else { |
4523 | /* Add file to outstanding requests */ | |
47c786e7 | 4524 | /* BB change to kmem cache alloc */ |
ff5dbd9e | 4525 | dnotify_req = (struct dir_notify_req *) kmalloc( |
47c786e7 SF |
4526 | sizeof(struct dir_notify_req), |
4527 | GFP_KERNEL); | |
4528 | if(dnotify_req) { | |
4529 | dnotify_req->Pid = pSMB->hdr.Pid; | |
4530 | dnotify_req->PidHigh = pSMB->hdr.PidHigh; | |
4531 | dnotify_req->Mid = pSMB->hdr.Mid; | |
4532 | dnotify_req->Tid = pSMB->hdr.Tid; | |
4533 | dnotify_req->Uid = pSMB->hdr.Uid; | |
4534 | dnotify_req->netfid = netfid; | |
4535 | dnotify_req->pfile = pfile; | |
4536 | dnotify_req->filter = filter; | |
4537 | dnotify_req->multishot = multishot; | |
4538 | spin_lock(&GlobalMid_Lock); | |
4539 | list_add_tail(&dnotify_req->lhead, | |
4540 | &GlobalDnotifyReqList); | |
4541 | spin_unlock(&GlobalMid_Lock); | |
4542 | } else | |
4543 | rc = -ENOMEM; | |
1da177e4 LT |
4544 | } |
4545 | cifs_buf_release(pSMB); | |
4546 | return rc; | |
4547 | } | |
4548 | #ifdef CONFIG_CIFS_XATTR | |
4549 | ssize_t | |
4550 | CIFSSMBQAllEAs(const int xid, struct cifsTconInfo *tcon, | |
4551 | const unsigned char *searchName, | |
4552 | char * EAData, size_t buf_size, | |
737b758c | 4553 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
4554 | { |
4555 | /* BB assumes one setup word */ | |
4556 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
4557 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
4558 | int rc = 0; | |
4559 | int bytes_returned; | |
4560 | int name_len; | |
4561 | struct fea * temp_fea; | |
4562 | char * temp_ptr; | |
4563 | __u16 params, byte_count; | |
4564 | ||
4565 | cFYI(1, ("In Query All EAs path %s", searchName)); | |
4566 | QAllEAsRetry: | |
4567 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4568 | (void **) &pSMBr); | |
4569 | if (rc) | |
4570 | return rc; | |
4571 | ||
4572 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
4573 | name_len = | |
b1a45695 | 4574 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 4575 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
4576 | name_len++; /* trailing null */ |
4577 | name_len *= 2; | |
4578 | } else { /* BB improve the check for buffer overruns BB */ | |
4579 | name_len = strnlen(searchName, PATH_MAX); | |
4580 | name_len++; /* trailing null */ | |
4581 | strncpy(pSMB->FileName, searchName, name_len); | |
4582 | } | |
4583 | ||
4584 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */ ; | |
4585 | pSMB->TotalDataCount = 0; | |
4586 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4587 | pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ | |
4588 | pSMB->MaxSetupCount = 0; | |
4589 | pSMB->Reserved = 0; | |
4590 | pSMB->Flags = 0; | |
4591 | pSMB->Timeout = 0; | |
4592 | pSMB->Reserved2 = 0; | |
4593 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
4594 | struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); | |
4595 | pSMB->DataCount = 0; | |
4596 | pSMB->DataOffset = 0; | |
4597 | pSMB->SetupCount = 1; | |
4598 | pSMB->Reserved3 = 0; | |
4599 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
4600 | byte_count = params + 1 /* pad */ ; | |
4601 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
4602 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
4603 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_QUERY_ALL_EAS); | |
4604 | pSMB->Reserved4 = 0; | |
4605 | pSMB->hdr.smb_buf_length += byte_count; | |
4606 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4607 | ||
4608 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4609 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4610 | if (rc) { | |
4611 | cFYI(1, ("Send error in QueryAllEAs = %d", rc)); | |
4612 | } else { /* decode response */ | |
4613 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4614 | ||
4615 | /* BB also check enough total bytes returned */ | |
4616 | /* BB we need to improve the validity checking | |
4617 | of these trans2 responses */ | |
4618 | if (rc || (pSMBr->ByteCount < 4)) | |
4619 | rc = -EIO; /* bad smb */ | |
4620 | /* else if (pFindData){ | |
4621 | memcpy((char *) pFindData, | |
4622 | (char *) &pSMBr->hdr.Protocol + | |
4623 | data_offset, kl); | |
4624 | }*/ else { | |
4625 | /* check that length of list is not more than bcc */ | |
4626 | /* check that each entry does not go beyond length | |
4627 | of list */ | |
4628 | /* check that each element of each entry does not | |
4629 | go beyond end of list */ | |
4630 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
4631 | struct fealist * ea_response_data; | |
4632 | rc = 0; | |
4633 | /* validate_trans2_offsets() */ | |
4634 | /* BB to check if(start of smb + data_offset > &bcc+ bcc)*/ | |
4635 | ea_response_data = (struct fealist *) | |
4636 | (((char *) &pSMBr->hdr.Protocol) + | |
4637 | data_offset); | |
4638 | name_len = le32_to_cpu(ea_response_data->list_len); | |
4639 | cFYI(1,("ea length %d", name_len)); | |
4640 | if(name_len <= 8) { | |
4641 | /* returned EA size zeroed at top of function */ | |
4642 | cFYI(1,("empty EA list returned from server")); | |
4643 | } else { | |
4644 | /* account for ea list len */ | |
4645 | name_len -= 4; | |
4646 | temp_fea = ea_response_data->list; | |
4647 | temp_ptr = (char *)temp_fea; | |
4648 | while(name_len > 0) { | |
4649 | __u16 value_len; | |
4650 | name_len -= 4; | |
4651 | temp_ptr += 4; | |
4652 | rc += temp_fea->name_len; | |
4653 | /* account for prefix user. and trailing null */ | |
4654 | rc = rc + 5 + 1; | |
4655 | if(rc<(int)buf_size) { | |
4656 | memcpy(EAData,"user.",5); | |
4657 | EAData+=5; | |
4658 | memcpy(EAData,temp_ptr,temp_fea->name_len); | |
4659 | EAData+=temp_fea->name_len; | |
4660 | /* null terminate name */ | |
4661 | *EAData = 0; | |
4662 | EAData = EAData + 1; | |
4663 | } else if(buf_size == 0) { | |
4664 | /* skip copy - calc size only */ | |
4665 | } else { | |
4666 | /* stop before overrun buffer */ | |
4667 | rc = -ERANGE; | |
4668 | break; | |
4669 | } | |
4670 | name_len -= temp_fea->name_len; | |
4671 | temp_ptr += temp_fea->name_len; | |
4672 | /* account for trailing null */ | |
4673 | name_len--; | |
4674 | temp_ptr++; | |
4675 | value_len = le16_to_cpu(temp_fea->value_len); | |
4676 | name_len -= value_len; | |
4677 | temp_ptr += value_len; | |
4678 | /* BB check that temp_ptr is still within smb BB*/ | |
4679 | /* no trailing null to account for in value len */ | |
4680 | /* go on to next EA */ | |
4681 | temp_fea = (struct fea *)temp_ptr; | |
4682 | } | |
4683 | } | |
4684 | } | |
4685 | } | |
4686 | if (pSMB) | |
4687 | cifs_buf_release(pSMB); | |
4688 | if (rc == -EAGAIN) | |
4689 | goto QAllEAsRetry; | |
4690 | ||
4691 | return (ssize_t)rc; | |
4692 | } | |
4693 | ||
4694 | ssize_t CIFSSMBQueryEA(const int xid,struct cifsTconInfo * tcon, | |
4695 | const unsigned char * searchName,const unsigned char * ea_name, | |
4696 | unsigned char * ea_value, size_t buf_size, | |
737b758c | 4697 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
4698 | { |
4699 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
4700 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
4701 | int rc = 0; | |
4702 | int bytes_returned; | |
4703 | int name_len; | |
4704 | struct fea * temp_fea; | |
4705 | char * temp_ptr; | |
4706 | __u16 params, byte_count; | |
4707 | ||
4708 | cFYI(1, ("In Query EA path %s", searchName)); | |
4709 | QEARetry: | |
4710 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4711 | (void **) &pSMBr); | |
4712 | if (rc) | |
4713 | return rc; | |
4714 | ||
4715 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
4716 | name_len = | |
b1a45695 | 4717 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 4718 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
4719 | name_len++; /* trailing null */ |
4720 | name_len *= 2; | |
4721 | } else { /* BB improve the check for buffer overruns BB */ | |
4722 | name_len = strnlen(searchName, PATH_MAX); | |
4723 | name_len++; /* trailing null */ | |
4724 | strncpy(pSMB->FileName, searchName, name_len); | |
4725 | } | |
4726 | ||
4727 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */ ; | |
4728 | pSMB->TotalDataCount = 0; | |
4729 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4730 | pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ | |
4731 | pSMB->MaxSetupCount = 0; | |
4732 | pSMB->Reserved = 0; | |
4733 | pSMB->Flags = 0; | |
4734 | pSMB->Timeout = 0; | |
4735 | pSMB->Reserved2 = 0; | |
4736 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
4737 | struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); | |
4738 | pSMB->DataCount = 0; | |
4739 | pSMB->DataOffset = 0; | |
4740 | pSMB->SetupCount = 1; | |
4741 | pSMB->Reserved3 = 0; | |
4742 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
4743 | byte_count = params + 1 /* pad */ ; | |
4744 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
4745 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
4746 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_QUERY_ALL_EAS); | |
4747 | pSMB->Reserved4 = 0; | |
4748 | pSMB->hdr.smb_buf_length += byte_count; | |
4749 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4750 | ||
4751 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4752 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4753 | if (rc) { | |
4754 | cFYI(1, ("Send error in Query EA = %d", rc)); | |
4755 | } else { /* decode response */ | |
4756 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4757 | ||
4758 | /* BB also check enough total bytes returned */ | |
4759 | /* BB we need to improve the validity checking | |
4760 | of these trans2 responses */ | |
4761 | if (rc || (pSMBr->ByteCount < 4)) | |
4762 | rc = -EIO; /* bad smb */ | |
4763 | /* else if (pFindData){ | |
4764 | memcpy((char *) pFindData, | |
4765 | (char *) &pSMBr->hdr.Protocol + | |
4766 | data_offset, kl); | |
4767 | }*/ else { | |
4768 | /* check that length of list is not more than bcc */ | |
4769 | /* check that each entry does not go beyond length | |
4770 | of list */ | |
4771 | /* check that each element of each entry does not | |
4772 | go beyond end of list */ | |
4773 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
4774 | struct fealist * ea_response_data; | |
4775 | rc = -ENODATA; | |
4776 | /* validate_trans2_offsets() */ | |
4777 | /* BB to check if(start of smb + data_offset > &bcc+ bcc)*/ | |
4778 | ea_response_data = (struct fealist *) | |
4779 | (((char *) &pSMBr->hdr.Protocol) + | |
4780 | data_offset); | |
4781 | name_len = le32_to_cpu(ea_response_data->list_len); | |
4782 | cFYI(1,("ea length %d", name_len)); | |
4783 | if(name_len <= 8) { | |
4784 | /* returned EA size zeroed at top of function */ | |
4785 | cFYI(1,("empty EA list returned from server")); | |
4786 | } else { | |
4787 | /* account for ea list len */ | |
4788 | name_len -= 4; | |
4789 | temp_fea = ea_response_data->list; | |
4790 | temp_ptr = (char *)temp_fea; | |
4791 | /* loop through checking if we have a matching | |
4792 | name and then return the associated value */ | |
4793 | while(name_len > 0) { | |
4794 | __u16 value_len; | |
4795 | name_len -= 4; | |
4796 | temp_ptr += 4; | |
4797 | value_len = le16_to_cpu(temp_fea->value_len); | |
4798 | /* BB validate that value_len falls within SMB, | |
4799 | even though maximum for name_len is 255 */ | |
4800 | if(memcmp(temp_fea->name,ea_name, | |
4801 | temp_fea->name_len) == 0) { | |
4802 | /* found a match */ | |
4803 | rc = value_len; | |
4804 | /* account for prefix user. and trailing null */ | |
4805 | if(rc<=(int)buf_size) { | |
4806 | memcpy(ea_value, | |
4807 | temp_fea->name+temp_fea->name_len+1, | |
4808 | rc); | |
4809 | /* ea values, unlike ea names, | |
4810 | are not null terminated */ | |
4811 | } else if(buf_size == 0) { | |
4812 | /* skip copy - calc size only */ | |
4813 | } else { | |
4814 | /* stop before overrun buffer */ | |
4815 | rc = -ERANGE; | |
4816 | } | |
4817 | break; | |
4818 | } | |
4819 | name_len -= temp_fea->name_len; | |
4820 | temp_ptr += temp_fea->name_len; | |
4821 | /* account for trailing null */ | |
4822 | name_len--; | |
4823 | temp_ptr++; | |
4824 | name_len -= value_len; | |
4825 | temp_ptr += value_len; | |
4826 | /* no trailing null to account for in value len */ | |
4827 | /* go on to next EA */ | |
4828 | temp_fea = (struct fea *)temp_ptr; | |
4829 | } | |
4830 | } | |
4831 | } | |
4832 | } | |
4833 | if (pSMB) | |
4834 | cifs_buf_release(pSMB); | |
4835 | if (rc == -EAGAIN) | |
4836 | goto QEARetry; | |
4837 | ||
4838 | return (ssize_t)rc; | |
4839 | } | |
4840 | ||
4841 | int | |
4842 | CIFSSMBSetEA(const int xid, struct cifsTconInfo *tcon, const char *fileName, | |
4843 | const char * ea_name, const void * ea_value, | |
737b758c SF |
4844 | const __u16 ea_value_len, const struct nls_table *nls_codepage, |
4845 | int remap) | |
1da177e4 LT |
4846 | { |
4847 | struct smb_com_transaction2_spi_req *pSMB = NULL; | |
4848 | struct smb_com_transaction2_spi_rsp *pSMBr = NULL; | |
4849 | struct fealist *parm_data; | |
4850 | int name_len; | |
4851 | int rc = 0; | |
4852 | int bytes_returned = 0; | |
4853 | __u16 params, param_offset, byte_count, offset, count; | |
4854 | ||
4855 | cFYI(1, ("In SetEA")); | |
4856 | SetEARetry: | |
4857 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4858 | (void **) &pSMBr); | |
4859 | if (rc) | |
4860 | return rc; | |
4861 | ||
4862 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
4863 | name_len = | |
b1a45695 | 4864 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 4865 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
4866 | name_len++; /* trailing null */ |
4867 | name_len *= 2; | |
4868 | } else { /* BB improve the check for buffer overruns BB */ | |
4869 | name_len = strnlen(fileName, PATH_MAX); | |
4870 | name_len++; /* trailing null */ | |
4871 | strncpy(pSMB->FileName, fileName, name_len); | |
4872 | } | |
4873 | ||
4874 | params = 6 + name_len; | |
4875 | ||
4876 | /* done calculating parms using name_len of file name, | |
4877 | now use name_len to calculate length of ea name | |
4878 | we are going to create in the inode xattrs */ | |
4879 | if(ea_name == NULL) | |
4880 | name_len = 0; | |
4881 | else | |
4882 | name_len = strnlen(ea_name,255); | |
4883 | ||
4884 | count = sizeof(*parm_data) + ea_value_len + name_len + 1; | |
4885 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4886 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB size from sess */ | |
4887 | pSMB->MaxSetupCount = 0; | |
4888 | pSMB->Reserved = 0; | |
4889 | pSMB->Flags = 0; | |
4890 | pSMB->Timeout = 0; | |
4891 | pSMB->Reserved2 = 0; | |
4892 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
4893 | InformationLevel) - 4; | |
4894 | offset = param_offset + params; | |
4895 | pSMB->InformationLevel = | |
4896 | cpu_to_le16(SMB_SET_FILE_EA); | |
4897 | ||
4898 | parm_data = | |
4899 | (struct fealist *) (((char *) &pSMB->hdr.Protocol) + | |
4900 | offset); | |
4901 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4902 | pSMB->DataOffset = cpu_to_le16(offset); | |
4903 | pSMB->SetupCount = 1; | |
4904 | pSMB->Reserved3 = 0; | |
4905 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
4906 | byte_count = 3 /* pad */ + params + count; | |
4907 | pSMB->DataCount = cpu_to_le16(count); | |
4908 | parm_data->list_len = cpu_to_le32(count); | |
4909 | parm_data->list[0].EA_flags = 0; | |
4910 | /* we checked above that name len is less than 255 */ | |
53b3531b | 4911 | parm_data->list[0].name_len = (__u8)name_len; |
1da177e4 LT |
4912 | /* EA names are always ASCII */ |
4913 | if(ea_name) | |
4914 | strncpy(parm_data->list[0].name,ea_name,name_len); | |
4915 | parm_data->list[0].name[name_len] = 0; | |
4916 | parm_data->list[0].value_len = cpu_to_le16(ea_value_len); | |
4917 | /* caller ensures that ea_value_len is less than 64K but | |
4918 | we need to ensure that it fits within the smb */ | |
4919 | ||
4920 | /*BB add length check that it would fit in negotiated SMB buffer size BB */ | |
4921 | /* if(ea_value_len > buffer_size - 512 (enough for header)) */ | |
4922 | if(ea_value_len) | |
4923 | memcpy(parm_data->list[0].name+name_len+1,ea_value,ea_value_len); | |
4924 | ||
4925 | pSMB->TotalDataCount = pSMB->DataCount; | |
4926 | pSMB->ParameterCount = cpu_to_le16(params); | |
4927 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4928 | pSMB->Reserved4 = 0; | |
4929 | pSMB->hdr.smb_buf_length += byte_count; | |
4930 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4931 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4932 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4933 | if (rc) { | |
4934 | cFYI(1, ("SetPathInfo (EA) returned %d", rc)); | |
4935 | } | |
4936 | ||
4937 | cifs_buf_release(pSMB); | |
4938 | ||
4939 | if (rc == -EAGAIN) | |
4940 | goto SetEARetry; | |
4941 | ||
4942 | return rc; | |
4943 | } | |
4944 | ||
4945 | #endif |