4 * Copyright (C) International Business Machines Corp., 2002,2006
5 * Author(s): Steve French (sfrench@us.ibm.com)
7 * Contains the routines for constructing the SMB PDUs themselves
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.
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.
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
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 */
31 #include <linux/kernel.h>
32 #include <linux/vfs.h>
33 #include <linux/posix_acl_xattr.h>
34 #include <asm/uaccess.h>
37 #include "cifsproto.h"
38 #include "cifs_unicode.h"
39 #include "cifs_debug.h"
42 #ifdef CONFIG_CIFS_POSIX
47 {CIFS_PROT, "\2NT LM 0.12"},
48 {CIFS_PROT, "\2POSIX 2"},
56 {CIFS_PROT, "\2NT LM 0.12"},
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)
66 struct cifsFileInfo *open_file = NULL;
67 struct list_head * tmp;
68 struct list_head * tmp1;
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);
75 open_file->invalidHandle = TRUE;
78 write_unlock(&GlobalSMBSeslock);
79 /* BB Add call to invalidate_inodes(sb) for all superblocks mounted
83 /* If the return code is zero, this function must fill in request_buf pointer */
85 small_smb_init(int smb_command, int wct, struct cifsTconInfo *tcon,
86 void **request_buf /* returned */)
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 */
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",
106 if((tcon->ses) && (tcon->ses->status != CifsExiting) &&
107 (tcon->ses->server)){
108 struct nls_table *nls_codepage;
109 /* Give Demultiplex thread up to 10 seconds to
110 reconnect, should be greater than cifs socket
111 timeout which is 7 seconds */
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"));
121 } /* else "hard" mount - keep retrying
122 until process is killed or server
123 comes back on-line */
124 } else /* TCP session is reestablished now */
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)
134 rc = cifs_setup_session(0, tcon->ses,
136 if(!rc && (tcon->tidStatus == CifsNeedReconnect)) {
137 mark_open_files_invalid(tcon);
138 rc = CIFSTCon(0, tcon->ses, tcon->treeName, tcon
140 up(&tcon->ses->sesSem);
141 /* BB FIXME add code to check if wsize needs
142 update due to negotiated smb buffer size
145 atomic_inc(&tconInfoReconnectCount);
147 cFYI(1, ("reconnect tcon rc = %d", rc));
148 /* Removed call to reopen open files here -
149 it is safer (and faster) to reopen files
150 one at a time as needed in read and write */
152 /* Check if handle based operation so we
153 know whether we can continue or not without
154 returning to caller to reset file handle */
155 switch(smb_command) {
156 case SMB_COM_READ_ANDX:
157 case SMB_COM_WRITE_ANDX:
159 case SMB_COM_FIND_CLOSE2:
160 case SMB_COM_LOCKING_ANDX: {
161 unload_nls(nls_codepage);
166 up(&tcon->ses->sesSem);
168 unload_nls(nls_codepage);
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? */
183 header_assemble((struct smb_hdr *) *request_buf, smb_command, tcon,wct);
186 cifs_stats_inc(&tcon->num_smbs_sent);
191 #ifdef CONFIG_CIFS_EXPERIMENTAL
193 small_smb_init_no_tc(const int smb_command, const int wct,
194 struct cifsSesInfo *ses, void **request_buf)
197 struct smb_hdr * buffer;
199 rc = small_smb_init(smb_command, wct, NULL, request_buf);
203 buffer = (struct smb_hdr *)*request_buf;
204 buffer->Mid = GetNextMid(ses->server);
205 if (ses->capabilities & CAP_UNICODE)
206 buffer->Flags2 |= SMBFLG2_UNICODE;
207 if (ses->capabilities & CAP_STATUS32)
208 buffer->Flags2 |= SMBFLG2_ERR_STATUS;
210 /* uid, tid can stay at zero as set in header assemble */
212 /* BB add support for turning on the signing when
213 this function is used after 1st of session setup requests */
217 #endif /* CONFIG_CIFS_EXPERIMENTAL */
219 /* If the return code is zero, this function must fill in request_buf pointer */
221 smb_init(int smb_command, int wct, struct cifsTconInfo *tcon,
222 void **request_buf /* returned */ ,
223 void **response_buf /* returned */ )
227 /* SMBs NegProt, SessSetup, uLogoff do not have tcon yet so
228 check for tcp and smb session status done differently
229 for those three - in the calling routine */
231 if(tcon->tidStatus == CifsExiting) {
232 /* only tree disconnect, open, and write,
233 (and ulogoff which does not have tcon)
234 are allowed as we start force umount */
235 if((smb_command != SMB_COM_WRITE_ANDX) &&
236 (smb_command != SMB_COM_OPEN_ANDX) &&
237 (smb_command != SMB_COM_TREE_DISCONNECT)) {
238 cFYI(1,("can not send cmd %d while umounting",
244 if((tcon->ses) && (tcon->ses->status != CifsExiting) &&
245 (tcon->ses->server)){
246 struct nls_table *nls_codepage;
247 /* Give Demultiplex thread up to 10 seconds to
248 reconnect, should be greater than cifs socket
249 timeout which is 7 seconds */
250 while(tcon->ses->server->tcpStatus == CifsNeedReconnect) {
251 wait_event_interruptible_timeout(tcon->ses->server->response_q,
252 (tcon->ses->server->tcpStatus == CifsGood), 10 * HZ);
253 if(tcon->ses->server->tcpStatus ==
255 /* on "soft" mounts we wait once */
256 if((tcon->retry == FALSE) ||
257 (tcon->ses->status == CifsExiting)) {
258 cFYI(1,("gave up waiting on reconnect in smb_init"));
260 } /* else "hard" mount - keep retrying
261 until process is killed or server
263 } else /* TCP session is reestablished now */
268 nls_codepage = load_nls_default();
269 /* need to prevent multiple threads trying to
270 simultaneously reconnect the same SMB session */
271 down(&tcon->ses->sesSem);
272 if(tcon->ses->status == CifsNeedReconnect)
273 rc = cifs_setup_session(0, tcon->ses,
275 if(!rc && (tcon->tidStatus == CifsNeedReconnect)) {
276 mark_open_files_invalid(tcon);
277 rc = CIFSTCon(0, tcon->ses, tcon->treeName,
279 up(&tcon->ses->sesSem);
280 /* BB FIXME add code to check if wsize needs
281 update due to negotiated smb buffer size
284 atomic_inc(&tconInfoReconnectCount);
286 cFYI(1, ("reconnect tcon rc = %d", rc));
287 /* Removed call to reopen open files here -
288 it is safer (and faster) to reopen files
289 one at a time as needed in read and write */
291 /* Check if handle based operation so we
292 know whether we can continue or not without
293 returning to caller to reset file handle */
294 switch(smb_command) {
295 case SMB_COM_READ_ANDX:
296 case SMB_COM_WRITE_ANDX:
298 case SMB_COM_FIND_CLOSE2:
299 case SMB_COM_LOCKING_ANDX: {
300 unload_nls(nls_codepage);
305 up(&tcon->ses->sesSem);
307 unload_nls(nls_codepage);
316 *request_buf = cifs_buf_get();
317 if (*request_buf == NULL) {
318 /* BB should we add a retry in here if not a writepage? */
321 /* Although the original thought was we needed the response buf for */
322 /* potential retries of smb operations it turns out we can determine */
323 /* from the mid flags when the request buffer can be resent without */
324 /* having to use a second distinct buffer for the response */
325 *response_buf = *request_buf;
327 header_assemble((struct smb_hdr *) *request_buf, smb_command, tcon,
331 cifs_stats_inc(&tcon->num_smbs_sent);
336 static int validate_t2(struct smb_t2_rsp * pSMB)
342 /* check for plausible wct, bcc and t2 data and parm sizes */
343 /* check for parm and data offset going beyond end of smb */
344 if(pSMB->hdr.WordCount >= 10) {
345 if((le16_to_cpu(pSMB->t2_rsp.ParameterOffset) <= 1024) &&
346 (le16_to_cpu(pSMB->t2_rsp.DataOffset) <= 1024)) {
347 /* check that bcc is at least as big as parms + data */
348 /* check that bcc is less than negotiated smb buffer */
349 total_size = le16_to_cpu(pSMB->t2_rsp.ParameterCount);
350 if(total_size < 512) {
351 total_size+=le16_to_cpu(pSMB->t2_rsp.DataCount);
352 /* BCC le converted in SendReceive */
353 pBCC = (pSMB->hdr.WordCount * 2) +
354 sizeof(struct smb_hdr) +
356 if((total_size <= (*(u16 *)pBCC)) &&
358 CIFSMaxBufSize+MAX_CIFS_HDR_SIZE)) {
365 cifs_dump_mem("Invalid transact2 SMB: ",(char *)pSMB,
366 sizeof(struct smb_t2_rsp) + 16);
370 CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses)
373 NEGOTIATE_RSP *pSMBr;
376 struct TCP_Server_Info * server;
380 server = ses->server;
385 rc = smb_init(SMB_COM_NEGOTIATE, 0, NULL /* no tcon yet */ ,
386 (void **) &pSMB, (void **) &pSMBr);
389 pSMB->hdr.Mid = GetNextMid(server);
390 pSMB->hdr.Flags2 |= SMBFLG2_UNICODE;
391 if (extended_security)
392 pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC;
394 count = strlen(protocols[0].name) + 1;
395 strncpy(pSMB->DialectsArray, protocols[0].name, 30);
396 /* null guaranteed to be at end of source and target buffers anyway */
398 pSMB->hdr.smb_buf_length += count;
399 pSMB->ByteCount = cpu_to_le16(count);
401 rc = SendReceive(xid, ses, (struct smb_hdr *) pSMB,
402 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
404 server->secMode = pSMBr->SecurityMode;
405 if((server->secMode & SECMODE_USER) == 0)
406 cFYI(1,("share mode security"));
407 server->secType = NTLM; /* BB override default for
408 NTLMv2 or kerberos v5 */
409 /* one byte - no need to convert this or EncryptionKeyLen
410 from little endian */
411 server->maxReq = le16_to_cpu(pSMBr->MaxMpxCount);
412 /* probably no need to store and check maxvcs */
414 min(le32_to_cpu(pSMBr->MaxBufferSize),
415 (__u32) CIFSMaxBufSize + MAX_CIFS_HDR_SIZE);
416 server->maxRw = le32_to_cpu(pSMBr->MaxRawSize);
417 cFYI(0, ("Max buf = %d", ses->server->maxBuf));
418 GETU32(ses->server->sessid) = le32_to_cpu(pSMBr->SessionKey);
419 server->capabilities = le32_to_cpu(pSMBr->Capabilities);
420 server->timeZone = le16_to_cpu(pSMBr->ServerTimeZone);
421 /* BB with UTC do we ever need to be using srvr timezone? */
422 if (pSMBr->EncryptionKeyLength == CIFS_CRYPTO_KEY_SIZE) {
423 memcpy(server->cryptKey, pSMBr->u.EncryptionKey,
424 CIFS_CRYPTO_KEY_SIZE);
425 } else if ((pSMBr->hdr.Flags2 & SMBFLG2_EXT_SEC)
426 && (pSMBr->EncryptionKeyLength == 0)) {
427 /* decode security blob */
431 /* BB might be helpful to save off the domain of server here */
433 if ((pSMBr->hdr.Flags2 & SMBFLG2_EXT_SEC) &&
434 (server->capabilities & CAP_EXTENDED_SECURITY)) {
435 count = pSMBr->ByteCount;
438 else if (count == 16) {
439 server->secType = RawNTLMSSP;
440 if (server->socketUseCount.counter > 1) {
442 (server->server_GUID,
443 pSMBr->u.extended_response.
445 cFYI(1, ("server UID changed"));
453 memcpy(server->server_GUID,
454 pSMBr->u.extended_response.
457 rc = decode_negTokenInit(pSMBr->u.
463 /* BB Need to fill struct for sessetup here */
470 server->capabilities &= ~CAP_EXTENDED_SECURITY;
471 if(sign_CIFS_PDUs == FALSE) {
472 if(server->secMode & SECMODE_SIGN_REQUIRED)
474 ("Server requires /proc/fs/cifs/PacketSigningEnabled"));
475 server->secMode &= ~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED);
476 } else if(sign_CIFS_PDUs == 1) {
477 if((server->secMode & SECMODE_SIGN_REQUIRED) == 0)
478 server->secMode &= ~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED);
483 cifs_buf_release(pSMB);
488 CIFSSMBTDis(const int xid, struct cifsTconInfo *tcon)
490 struct smb_hdr *smb_buffer;
491 struct smb_hdr *smb_buffer_response; /* BB removeme BB */
495 cFYI(1, ("In tree disconnect"));
497 * If last user of the connection and
498 * connection alive - disconnect it
499 * If this is the last connection on the server session disconnect it
500 * (and inside session disconnect we should check if tcp socket needs
501 * to be freed and kernel thread woken up).
504 down(&tcon->tconSem);
508 atomic_dec(&tcon->useCount);
509 if (atomic_read(&tcon->useCount) > 0) {
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(tcon->tidStatus == CifsNeedReconnect) {
521 if((tcon->ses == NULL) || (tcon->ses->server == NULL)) {
525 rc = small_smb_init(SMB_COM_TREE_DISCONNECT, 0, tcon,
526 (void **)&smb_buffer);
531 smb_buffer_response = smb_buffer; /* BB removeme BB */
533 rc = SendReceive(xid, tcon->ses, smb_buffer, smb_buffer_response,
536 cFYI(1, ("Tree disconnect failed %d", rc));
539 cifs_small_buf_release(smb_buffer);
542 /* No need to return error on this operation if tid invalidated and
543 closed on server already e.g. due to tcp session crashing */
551 CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses)
553 struct smb_hdr *smb_buffer_response;
554 LOGOFF_ANDX_REQ *pSMB;
558 cFYI(1, ("In SMBLogoff for session disconnect"));
564 atomic_dec(&ses->inUse);
565 if (atomic_read(&ses->inUse) > 0) {
569 rc = small_smb_init(SMB_COM_LOGOFF_ANDX, 2, NULL, (void **)&pSMB);
575 smb_buffer_response = (struct smb_hdr *)pSMB; /* BB removeme BB */
578 pSMB->hdr.Mid = GetNextMid(ses->server);
580 if(ses->server->secMode &
581 (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED))
582 pSMB->hdr.Flags2 |= SMBFLG2_SECURITY_SIGNATURE;
585 pSMB->hdr.Uid = ses->Suid;
587 pSMB->AndXCommand = 0xFF;
588 rc = SendReceive(xid, ses, (struct smb_hdr *) pSMB,
589 smb_buffer_response, &length, 0);
591 atomic_dec(&ses->server->socketUseCount);
592 if (atomic_read(&ses->server->socketUseCount) == 0) {
593 spin_lock(&GlobalMid_Lock);
594 ses->server->tcpStatus = CifsExiting;
595 spin_unlock(&GlobalMid_Lock);
600 cifs_small_buf_release(pSMB);
602 /* if session dead then we do not need to do ulogoff,
603 since server closed smb session, no sense reporting
611 CIFSSMBDelFile(const int xid, struct cifsTconInfo *tcon, const char *fileName,
612 const struct nls_table *nls_codepage, int remap)
614 DELETE_FILE_REQ *pSMB = NULL;
615 DELETE_FILE_RSP *pSMBr = NULL;
621 rc = smb_init(SMB_COM_DELETE, 1, tcon, (void **) &pSMB,
626 if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
628 cifsConvertToUCS((__le16 *) pSMB->fileName, fileName,
629 PATH_MAX, nls_codepage, remap);
630 name_len++; /* trailing null */
632 } else { /* BB improve check for buffer overruns BB */
633 name_len = strnlen(fileName, PATH_MAX);
634 name_len++; /* trailing null */
635 strncpy(pSMB->fileName, fileName, name_len);
637 pSMB->SearchAttributes =
638 cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM);
639 pSMB->BufferFormat = 0x04;
640 pSMB->hdr.smb_buf_length += name_len + 1;
641 pSMB->ByteCount = cpu_to_le16(name_len + 1);
642 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
643 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
644 cifs_stats_inc(&tcon->num_deletes);
646 cFYI(1, ("Error in RMFile = %d", rc));
649 cifs_buf_release(pSMB);
657 CIFSSMBRmDir(const int xid, struct cifsTconInfo *tcon, const char *dirName,
658 const struct nls_table *nls_codepage, int remap)
660 DELETE_DIRECTORY_REQ *pSMB = NULL;
661 DELETE_DIRECTORY_RSP *pSMBr = NULL;
666 cFYI(1, ("In CIFSSMBRmDir"));
668 rc = smb_init(SMB_COM_DELETE_DIRECTORY, 0, tcon, (void **) &pSMB,
673 if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
674 name_len = cifsConvertToUCS((__le16 *) pSMB->DirName, dirName,
675 PATH_MAX, nls_codepage, remap);
676 name_len++; /* trailing null */
678 } else { /* BB improve check for buffer overruns BB */
679 name_len = strnlen(dirName, PATH_MAX);
680 name_len++; /* trailing null */
681 strncpy(pSMB->DirName, dirName, name_len);
684 pSMB->BufferFormat = 0x04;
685 pSMB->hdr.smb_buf_length += name_len + 1;
686 pSMB->ByteCount = cpu_to_le16(name_len + 1);
687 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
688 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
689 cifs_stats_inc(&tcon->num_rmdirs);
691 cFYI(1, ("Error in RMDir = %d", rc));
694 cifs_buf_release(pSMB);
701 CIFSSMBMkDir(const int xid, struct cifsTconInfo *tcon,
702 const char *name, const struct nls_table *nls_codepage, int remap)
705 CREATE_DIRECTORY_REQ *pSMB = NULL;
706 CREATE_DIRECTORY_RSP *pSMBr = NULL;
710 cFYI(1, ("In CIFSSMBMkDir"));
712 rc = smb_init(SMB_COM_CREATE_DIRECTORY, 0, tcon, (void **) &pSMB,
717 if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
718 name_len = cifsConvertToUCS((__le16 *) pSMB->DirName, name,
719 PATH_MAX, nls_codepage, remap);
720 name_len++; /* trailing null */
722 } else { /* BB improve check for buffer overruns BB */
723 name_len = strnlen(name, PATH_MAX);
724 name_len++; /* trailing null */
725 strncpy(pSMB->DirName, name, name_len);
728 pSMB->BufferFormat = 0x04;
729 pSMB->hdr.smb_buf_length += name_len + 1;
730 pSMB->ByteCount = cpu_to_le16(name_len + 1);
731 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
732 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
733 cifs_stats_inc(&tcon->num_mkdirs);
735 cFYI(1, ("Error in Mkdir = %d", rc));
738 cifs_buf_release(pSMB);
744 static __u16 convert_disposition(int disposition)
748 switch (disposition) {
750 ofun = SMBOPEN_OCREATE | SMBOPEN_OTRUNC;
753 ofun = SMBOPEN_OAPPEND;
756 ofun = SMBOPEN_OCREATE;
759 ofun = SMBOPEN_OCREATE | SMBOPEN_OAPPEND;
762 ofun = SMBOPEN_OTRUNC;
764 case FILE_OVERWRITE_IF:
765 ofun = SMBOPEN_OCREATE | SMBOPEN_OTRUNC;
768 cFYI(1,("unknown disposition %d",disposition));
769 ofun = SMBOPEN_OAPPEND; /* regular open */
775 SMBLegacyOpen(const int xid, struct cifsTconInfo *tcon,
776 const char *fileName, const int openDisposition,
777 const int access_flags, const int create_options, __u16 * netfid,
778 int *pOplock, FILE_ALL_INFO * pfile_info,
779 const struct nls_table *nls_codepage, int remap)
782 OPENX_REQ *pSMB = NULL;
783 OPENX_RSP *pSMBr = NULL;
789 rc = smb_init(SMB_COM_OPEN_ANDX, 15, tcon, (void **) &pSMB,
794 pSMB->AndXCommand = 0xFF; /* none */
796 if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
797 count = 1; /* account for one byte pad to word boundary */
799 cifsConvertToUCS((__le16 *) (pSMB->fileName + 1),
800 fileName, PATH_MAX, nls_codepage, remap);
801 name_len++; /* trailing null */
803 } else { /* BB improve check for buffer overruns BB */
804 count = 0; /* no pad */
805 name_len = strnlen(fileName, PATH_MAX);
806 name_len++; /* trailing null */
807 strncpy(pSMB->fileName, fileName, name_len);
809 if (*pOplock & REQ_OPLOCK)
810 pSMB->OpenFlags = cpu_to_le16(REQ_OPLOCK);
811 else if (*pOplock & REQ_BATCHOPLOCK) {
812 pSMB->OpenFlags = cpu_to_le16(REQ_BATCHOPLOCK);
814 pSMB->OpenFlags |= cpu_to_le16(REQ_MORE_INFO);
815 /* BB fixme add conversion for access_flags to bits 0 - 2 of mode */
821 pSMB->Mode = cpu_to_le16(2);
822 pSMB->Mode |= cpu_to_le16(0x40); /* deny none */
823 /* set file as system file if special file such
824 as fifo and server expecting SFU style and
825 no Unix extensions */
827 if(create_options & CREATE_OPTION_SPECIAL)
828 pSMB->FileAttributes = cpu_to_le16(ATTR_SYSTEM);
830 pSMB->FileAttributes = cpu_to_le16(0/*ATTR_NORMAL*/); /* BB FIXME */
832 /* if ((omode & S_IWUGO) == 0)
833 pSMB->FileAttributes |= cpu_to_le32(ATTR_READONLY);*/
834 /* Above line causes problems due to vfs splitting create into two
835 pieces - need to set mode after file created not while it is
839 /* pSMB->CreateOptions = cpu_to_le32(create_options & CREATE_OPTIONS_MASK); */
840 /* BB FIXME END BB */
842 pSMB->Sattr = cpu_to_le16(ATTR_HIDDEN | ATTR_SYSTEM | ATTR_DIRECTORY);
843 pSMB->OpenFunction = cpu_to_le16(convert_disposition(openDisposition));
845 pSMB->hdr.smb_buf_length += count;
847 pSMB->ByteCount = cpu_to_le16(count);
848 /* long_op set to 1 to allow for oplock break timeouts */
849 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
850 (struct smb_hdr *) pSMBr, &bytes_returned, 1);
851 cifs_stats_inc(&tcon->num_opens);
853 cFYI(1, ("Error in Open = %d", rc));
855 /* BB verify if wct == 15 */
857 /* *pOplock = pSMBr->OplockLevel; */ /* BB take from action field BB */
859 *netfid = pSMBr->Fid; /* cifs fid stays in le */
860 /* Let caller know file was created so we can set the mode. */
861 /* Do we care about the CreateAction in any other cases? */
863 /* if(cpu_to_le32(FILE_CREATE) == pSMBr->CreateAction)
864 *pOplock |= CIFS_CREATE_ACTION; */
868 pfile_info->CreationTime = 0; /* BB convert CreateTime*/
869 pfile_info->LastAccessTime = 0; /* BB fixme */
870 pfile_info->LastWriteTime = 0; /* BB fixme */
871 pfile_info->ChangeTime = 0; /* BB fixme */
872 pfile_info->Attributes =
873 cpu_to_le32(le16_to_cpu(pSMBr->FileAttributes));
874 /* the file_info buf is endian converted by caller */
875 pfile_info->AllocationSize =
876 cpu_to_le64(le32_to_cpu(pSMBr->EndOfFile));
877 pfile_info->EndOfFile = pfile_info->AllocationSize;
878 pfile_info->NumberOfLinks = cpu_to_le32(1);
882 cifs_buf_release(pSMB);
889 CIFSSMBOpen(const int xid, struct cifsTconInfo *tcon,
890 const char *fileName, const int openDisposition,
891 const int access_flags, const int create_options, __u16 * netfid,
892 int *pOplock, FILE_ALL_INFO * pfile_info,
893 const struct nls_table *nls_codepage, int remap)
896 OPEN_REQ *pSMB = NULL;
897 OPEN_RSP *pSMBr = NULL;
903 rc = smb_init(SMB_COM_NT_CREATE_ANDX, 24, tcon, (void **) &pSMB,
908 pSMB->AndXCommand = 0xFF; /* none */
910 if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
911 count = 1; /* account for one byte pad to word boundary */
913 cifsConvertToUCS((__le16 *) (pSMB->fileName + 1),
914 fileName, PATH_MAX, nls_codepage, remap);
915 name_len++; /* trailing null */
917 pSMB->NameLength = cpu_to_le16(name_len);
918 } else { /* BB improve check for buffer overruns BB */
919 count = 0; /* no pad */
920 name_len = strnlen(fileName, PATH_MAX);
921 name_len++; /* trailing null */
922 pSMB->NameLength = cpu_to_le16(name_len);
923 strncpy(pSMB->fileName, fileName, name_len);
925 if (*pOplock & REQ_OPLOCK)
926 pSMB->OpenFlags = cpu_to_le32(REQ_OPLOCK);
927 else if (*pOplock & REQ_BATCHOPLOCK) {
928 pSMB->OpenFlags = cpu_to_le32(REQ_BATCHOPLOCK);
930 pSMB->DesiredAccess = cpu_to_le32(access_flags);
931 pSMB->AllocationSize = 0;
932 /* set file as system file if special file such
933 as fifo and server expecting SFU style and
934 no Unix extensions */
935 if(create_options & CREATE_OPTION_SPECIAL)
936 pSMB->FileAttributes = cpu_to_le32(ATTR_SYSTEM);
938 pSMB->FileAttributes = cpu_to_le32(ATTR_NORMAL);
939 /* XP does not handle ATTR_POSIX_SEMANTICS */
940 /* but it helps speed up case sensitive checks for other
941 servers such as Samba */
942 if (tcon->ses->capabilities & CAP_UNIX)
943 pSMB->FileAttributes |= cpu_to_le32(ATTR_POSIX_SEMANTICS);
945 /* if ((omode & S_IWUGO) == 0)
946 pSMB->FileAttributes |= cpu_to_le32(ATTR_READONLY);*/
947 /* Above line causes problems due to vfs splitting create into two
948 pieces - need to set mode after file created not while it is
950 pSMB->ShareAccess = cpu_to_le32(FILE_SHARE_ALL);
951 pSMB->CreateDisposition = cpu_to_le32(openDisposition);
952 pSMB->CreateOptions = cpu_to_le32(create_options & CREATE_OPTIONS_MASK);
953 /* BB Expirement with various impersonation levels and verify */
954 pSMB->ImpersonationLevel = cpu_to_le32(SECURITY_IMPERSONATION);
955 pSMB->SecurityFlags =
956 SECURITY_CONTEXT_TRACKING | SECURITY_EFFECTIVE_ONLY;
959 pSMB->hdr.smb_buf_length += count;
961 pSMB->ByteCount = cpu_to_le16(count);
962 /* long_op set to 1 to allow for oplock break timeouts */
963 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
964 (struct smb_hdr *) pSMBr, &bytes_returned, 1);
965 cifs_stats_inc(&tcon->num_opens);
967 cFYI(1, ("Error in Open = %d", rc));
969 *pOplock = pSMBr->OplockLevel; /* 1 byte no need to le_to_cpu */
970 *netfid = pSMBr->Fid; /* cifs fid stays in le */
971 /* Let caller know file was created so we can set the mode. */
972 /* Do we care about the CreateAction in any other cases? */
973 if(cpu_to_le32(FILE_CREATE) == pSMBr->CreateAction)
974 *pOplock |= CIFS_CREATE_ACTION;
976 memcpy((char *)pfile_info,(char *)&pSMBr->CreationTime,
977 36 /* CreationTime to Attributes */);
978 /* the file_info buf is endian converted by caller */
979 pfile_info->AllocationSize = pSMBr->AllocationSize;
980 pfile_info->EndOfFile = pSMBr->EndOfFile;
981 pfile_info->NumberOfLinks = cpu_to_le32(1);
985 cifs_buf_release(pSMB);
992 CIFSSMBRead(const int xid, struct cifsTconInfo *tcon,
993 const int netfid, const unsigned int count,
994 const __u64 lseek, unsigned int *nbytes, char **buf,
998 READ_REQ *pSMB = NULL;
999 READ_RSP *pSMBr = NULL;
1000 char *pReadData = NULL;
1002 int resp_buf_type = 0;
1005 cFYI(1,("Reading %d bytes on fid %d",count,netfid));
1006 if(tcon->ses->capabilities & CAP_LARGE_FILES)
1009 wct = 10; /* old style read */
1012 rc = small_smb_init(SMB_COM_READ_ANDX, wct, tcon, (void **) &pSMB);
1016 /* tcon and ses pointer are checked in smb_init */
1017 if (tcon->ses->server == NULL)
1018 return -ECONNABORTED;
1020 pSMB->AndXCommand = 0xFF; /* none */
1022 pSMB->OffsetLow = cpu_to_le32(lseek & 0xFFFFFFFF);
1024 pSMB->OffsetHigh = cpu_to_le32(lseek >> 32);
1025 else if((lseek >> 32) > 0) /* can not handle this big offset for old */
1028 pSMB->Remaining = 0;
1029 pSMB->MaxCount = cpu_to_le16(count & 0xFFFF);
1030 pSMB->MaxCountHigh = cpu_to_le32(count >> 16);
1032 pSMB->ByteCount = 0; /* no need to do le conversion since 0 */
1034 /* old style read */
1035 struct smb_com_readx_req * pSMBW =
1036 (struct smb_com_readx_req *)pSMB;
1037 pSMBW->ByteCount = 0;
1040 iov[0].iov_base = (char *)pSMB;
1041 iov[0].iov_len = pSMB->hdr.smb_buf_length + 4;
1042 rc = SendReceive2(xid, tcon->ses, iov,
1045 cifs_stats_inc(&tcon->num_reads);
1046 pSMBr = (READ_RSP *)iov[0].iov_base;
1048 cERROR(1, ("Send error in read = %d", rc));
1050 int data_length = le16_to_cpu(pSMBr->DataLengthHigh);
1051 data_length = data_length << 16;
1052 data_length += le16_to_cpu(pSMBr->DataLength);
1053 *nbytes = data_length;
1055 /*check that DataLength would not go beyond end of SMB */
1056 if ((data_length > CIFSMaxBufSize)
1057 || (data_length > count)) {
1058 cFYI(1,("bad length %d for count %d",data_length,count));
1062 pReadData = (char *) (&pSMBr->hdr.Protocol) +
1063 le16_to_cpu(pSMBr->DataOffset);
1064 /* if(rc = copy_to_user(buf, pReadData, data_length)) {
1065 cERROR(1,("Faulting on read rc = %d",rc));
1067 }*/ /* can not use copy_to_user when using page cache*/
1069 memcpy(*buf,pReadData,data_length);
1073 /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */
1075 if(resp_buf_type == CIFS_SMALL_BUFFER)
1076 cifs_small_buf_release(iov[0].iov_base);
1077 else if(resp_buf_type == CIFS_LARGE_BUFFER)
1078 cifs_buf_release(iov[0].iov_base);
1079 } else if(resp_buf_type != CIFS_NO_BUFFER) {
1080 /* return buffer to caller to free */
1081 *buf = iov[0].iov_base;
1082 if(resp_buf_type == CIFS_SMALL_BUFFER)
1083 *pbuf_type = CIFS_SMALL_BUFFER;
1084 else if(resp_buf_type == CIFS_LARGE_BUFFER)
1085 *pbuf_type = CIFS_LARGE_BUFFER;
1086 } /* else no valid buffer on return - leave as null */
1088 /* Note: On -EAGAIN error only caller can retry on handle based calls
1089 since file handle passed in no longer valid */
1095 CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon,
1096 const int netfid, const unsigned int count,
1097 const __u64 offset, unsigned int *nbytes, const char *buf,
1098 const char __user * ubuf, const int long_op)
1101 WRITE_REQ *pSMB = NULL;
1102 WRITE_RSP *pSMBr = NULL;
1103 int bytes_returned, wct;
1107 /* cFYI(1,("write at %lld %d bytes",offset,count));*/
1108 if(tcon->ses == NULL)
1109 return -ECONNABORTED;
1111 if(tcon->ses->capabilities & CAP_LARGE_FILES)
1116 rc = smb_init(SMB_COM_WRITE_ANDX, wct, tcon, (void **) &pSMB,
1120 /* tcon and ses pointer are checked in smb_init */
1121 if (tcon->ses->server == NULL)
1122 return -ECONNABORTED;
1124 pSMB->AndXCommand = 0xFF; /* none */
1126 pSMB->OffsetLow = cpu_to_le32(offset & 0xFFFFFFFF);
1128 pSMB->OffsetHigh = cpu_to_le32(offset >> 32);
1129 else if((offset >> 32) > 0) /* can not handle this big offset for old */
1132 pSMB->Reserved = 0xFFFFFFFF;
1133 pSMB->WriteMode = 0;
1134 pSMB->Remaining = 0;
1136 /* Can increase buffer size if buffer is big enough in some cases - ie we
1137 can send more if LARGE_WRITE_X capability returned by the server and if
1138 our buffer is big enough or if we convert to iovecs on socket writes
1139 and eliminate the copy to the CIFS buffer */
1140 if(tcon->ses->capabilities & CAP_LARGE_WRITE_X) {
1141 bytes_sent = min_t(const unsigned int, CIFSMaxBufSize, count);
1143 bytes_sent = (tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE)
1147 if (bytes_sent > count)
1150 cpu_to_le16(offsetof(struct smb_com_write_req,Data) - 4);
1152 memcpy(pSMB->Data,buf,bytes_sent);
1154 if(copy_from_user(pSMB->Data,ubuf,bytes_sent)) {
1155 cifs_buf_release(pSMB);
1158 } else if (count != 0) {
1160 cifs_buf_release(pSMB);
1162 } /* else setting file size with write of zero bytes */
1164 byte_count = bytes_sent + 1; /* pad */
1165 else /* wct == 12 */ {
1166 byte_count = bytes_sent + 5; /* bigger pad, smaller smb hdr */
1168 pSMB->DataLengthLow = cpu_to_le16(bytes_sent & 0xFFFF);
1169 pSMB->DataLengthHigh = cpu_to_le16(bytes_sent >> 16);
1170 pSMB->hdr.smb_buf_length += byte_count;
1173 pSMB->ByteCount = cpu_to_le16(byte_count);
1174 else { /* old style write has byte count 4 bytes earlier so 4 bytes pad */
1175 struct smb_com_writex_req * pSMBW =
1176 (struct smb_com_writex_req *)pSMB;
1177 pSMBW->ByteCount = cpu_to_le16(byte_count);
1180 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
1181 (struct smb_hdr *) pSMBr, &bytes_returned, long_op);
1182 cifs_stats_inc(&tcon->num_writes);
1184 cFYI(1, ("Send error in write = %d", rc));
1187 *nbytes = le16_to_cpu(pSMBr->CountHigh);
1188 *nbytes = (*nbytes) << 16;
1189 *nbytes += le16_to_cpu(pSMBr->Count);
1192 cifs_buf_release(pSMB);
1194 /* Note: On -EAGAIN error only caller can retry on handle based calls
1195 since file handle passed in no longer valid */
1201 CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon,
1202 const int netfid, const unsigned int count,
1203 const __u64 offset, unsigned int *nbytes, struct kvec *iov,
1204 int n_vec, const int long_op)
1207 WRITE_REQ *pSMB = NULL;
1210 int resp_buf_type = 0;
1212 cFYI(1,("write2 at %lld %d bytes", (long long)offset, count));
1214 if(tcon->ses->capabilities & CAP_LARGE_FILES)
1218 rc = small_smb_init(SMB_COM_WRITE_ANDX, wct, tcon, (void **) &pSMB);
1221 /* tcon and ses pointer are checked in smb_init */
1222 if (tcon->ses->server == NULL)
1223 return -ECONNABORTED;
1225 pSMB->AndXCommand = 0xFF; /* none */
1227 pSMB->OffsetLow = cpu_to_le32(offset & 0xFFFFFFFF);
1229 pSMB->OffsetHigh = cpu_to_le32(offset >> 32);
1230 else if((offset >> 32) > 0) /* can not handle this big offset for old */
1232 pSMB->Reserved = 0xFFFFFFFF;
1233 pSMB->WriteMode = 0;
1234 pSMB->Remaining = 0;
1237 cpu_to_le16(offsetof(struct smb_com_write_req,Data) - 4);
1239 pSMB->DataLengthLow = cpu_to_le16(count & 0xFFFF);
1240 pSMB->DataLengthHigh = cpu_to_le16(count >> 16);
1241 smb_hdr_len = pSMB->hdr.smb_buf_length + 1; /* hdr + 1 byte pad */
1243 pSMB->hdr.smb_buf_length += count+1;
1244 else /* wct == 12 */
1245 pSMB->hdr.smb_buf_length += count+5; /* smb data starts later */
1247 pSMB->ByteCount = cpu_to_le16(count + 1);
1248 else /* wct == 12 */ /* bigger pad, smaller smb hdr, keep offset ok */ {
1249 struct smb_com_writex_req * pSMBW =
1250 (struct smb_com_writex_req *)pSMB;
1251 pSMBW->ByteCount = cpu_to_le16(count + 5);
1253 iov[0].iov_base = pSMB;
1255 iov[0].iov_len = smb_hdr_len + 4;
1256 else /* wct == 12 pad bigger by four bytes */
1257 iov[0].iov_len = smb_hdr_len + 8;
1260 rc = SendReceive2(xid, tcon->ses, iov, n_vec + 1, &resp_buf_type,
1262 cifs_stats_inc(&tcon->num_writes);
1264 cFYI(1, ("Send error Write2 = %d", rc));
1266 } else if(resp_buf_type == 0) {
1267 /* presumably this can not happen, but best to be safe */
1271 WRITE_RSP * pSMBr = (WRITE_RSP *)iov[0].iov_base;
1272 *nbytes = le16_to_cpu(pSMBr->CountHigh);
1273 *nbytes = (*nbytes) << 16;
1274 *nbytes += le16_to_cpu(pSMBr->Count);
1277 /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */
1278 if(resp_buf_type == CIFS_SMALL_BUFFER)
1279 cifs_small_buf_release(iov[0].iov_base);
1280 else if(resp_buf_type == CIFS_LARGE_BUFFER)
1281 cifs_buf_release(iov[0].iov_base);
1283 /* Note: On -EAGAIN error only caller can retry on handle based calls
1284 since file handle passed in no longer valid */
1291 CIFSSMBLock(const int xid, struct cifsTconInfo *tcon,
1292 const __u16 smb_file_id, const __u64 len,
1293 const __u64 offset, const __u32 numUnlock,
1294 const __u32 numLock, const __u8 lockType, const int waitFlag)
1297 LOCK_REQ *pSMB = NULL;
1298 LOCK_RSP *pSMBr = NULL;
1303 cFYI(1, ("In CIFSSMBLock - timeout %d numLock %d",waitFlag,numLock));
1304 rc = small_smb_init(SMB_COM_LOCKING_ANDX, 8, tcon, (void **) &pSMB);
1309 pSMBr = (LOCK_RSP *)pSMB; /* BB removeme BB */
1311 if(lockType == LOCKING_ANDX_OPLOCK_RELEASE) {
1312 timeout = -1; /* no response expected */
1314 } else if (waitFlag == TRUE) {
1315 timeout = 3; /* blocking operation, no timeout */
1316 pSMB->Timeout = cpu_to_le32(-1);/* blocking - do not time out */
1321 pSMB->NumberOfLocks = cpu_to_le16(numLock);
1322 pSMB->NumberOfUnlocks = cpu_to_le16(numUnlock);
1323 pSMB->LockType = lockType;
1324 pSMB->AndXCommand = 0xFF; /* none */
1325 pSMB->Fid = smb_file_id; /* netfid stays le */
1327 if((numLock != 0) || (numUnlock != 0)) {
1328 pSMB->Locks[0].Pid = cpu_to_le16(current->tgid);
1329 /* BB where to store pid high? */
1330 pSMB->Locks[0].LengthLow = cpu_to_le32((u32)len);
1331 pSMB->Locks[0].LengthHigh = cpu_to_le32((u32)(len>>32));
1332 pSMB->Locks[0].OffsetLow = cpu_to_le32((u32)offset);
1333 pSMB->Locks[0].OffsetHigh = cpu_to_le32((u32)(offset>>32));
1334 count = sizeof(LOCKING_ANDX_RANGE);
1339 pSMB->hdr.smb_buf_length += count;
1340 pSMB->ByteCount = cpu_to_le16(count);
1342 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
1343 (struct smb_hdr *) pSMBr, &bytes_returned, timeout);
1344 cifs_stats_inc(&tcon->num_locks);
1346 cFYI(1, ("Send error in Lock = %d", rc));
1348 cifs_small_buf_release(pSMB);
1350 /* Note: On -EAGAIN error only caller can retry on handle based calls
1351 since file handle passed in no longer valid */
1356 CIFSSMBClose(const int xid, struct cifsTconInfo *tcon, int smb_file_id)
1359 CLOSE_REQ *pSMB = NULL;
1360 CLOSE_RSP *pSMBr = NULL;
1362 cFYI(1, ("In CIFSSMBClose"));
1364 /* do not retry on dead session on close */
1365 rc = small_smb_init(SMB_COM_CLOSE, 3, tcon, (void **) &pSMB);
1371 pSMBr = (CLOSE_RSP *)pSMB; /* BB removeme BB */
1373 pSMB->FileID = (__u16) smb_file_id;
1374 pSMB->LastWriteTime = 0;
1375 pSMB->ByteCount = 0;
1376 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
1377 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
1378 cifs_stats_inc(&tcon->num_closes);
1381 /* EINTR is expected when user ctl-c to kill app */
1382 cERROR(1, ("Send error in Close = %d", rc));
1386 cifs_small_buf_release(pSMB);
1388 /* Since session is dead, file will be closed on server already */
1396 CIFSSMBRename(const int xid, struct cifsTconInfo *tcon,
1397 const char *fromName, const char *toName,
1398 const struct nls_table *nls_codepage, int remap)
1401 RENAME_REQ *pSMB = NULL;
1402 RENAME_RSP *pSMBr = NULL;
1404 int name_len, name_len2;
1407 cFYI(1, ("In CIFSSMBRename"));
1409 rc = smb_init(SMB_COM_RENAME, 1, tcon, (void **) &pSMB,
1414 pSMB->BufferFormat = 0x04;
1415 pSMB->SearchAttributes =
1416 cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM |
1419 if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
1421 cifsConvertToUCS((__le16 *) pSMB->OldFileName, fromName,
1422 PATH_MAX, nls_codepage, remap);
1423 name_len++; /* trailing null */
1425 pSMB->OldFileName[name_len] = 0x04; /* pad */
1426 /* protocol requires ASCII signature byte on Unicode string */
1427 pSMB->OldFileName[name_len + 1] = 0x00;
1429 cifsConvertToUCS((__le16 *) &pSMB->OldFileName[name_len + 2],
1430 toName, PATH_MAX, nls_codepage, remap);
1431 name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ;
1432 name_len2 *= 2; /* convert to bytes */
1433 } else { /* BB improve the check for buffer overruns BB */
1434 name_len = strnlen(fromName, PATH_MAX);
1435 name_len++; /* trailing null */
1436 strncpy(pSMB->OldFileName, fromName, name_len);
1437 name_len2 = strnlen(toName, PATH_MAX);
1438 name_len2++; /* trailing null */
1439 pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */
1440 strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2);
1441 name_len2++; /* trailing null */
1442 name_len2++; /* signature byte */
1445 count = 1 /* 1st signature byte */ + name_len + name_len2;
1446 pSMB->hdr.smb_buf_length += count;
1447 pSMB->ByteCount = cpu_to_le16(count);
1449 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
1450 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
1451 cifs_stats_inc(&tcon->num_renames);
1453 cFYI(1, ("Send error in rename = %d", rc));
1456 cifs_buf_release(pSMB);
1464 int CIFSSMBRenameOpenFile(const int xid,struct cifsTconInfo *pTcon,
1465 int netfid, char * target_name,
1466 const struct nls_table * nls_codepage, int remap)
1468 struct smb_com_transaction2_sfi_req *pSMB = NULL;
1469 struct smb_com_transaction2_sfi_rsp *pSMBr = NULL;
1470 struct set_file_rename * rename_info;
1472 char dummy_string[30];
1474 int bytes_returned = 0;
1476 __u16 params, param_offset, offset, count, byte_count;
1478 cFYI(1, ("Rename to File by handle"));
1479 rc = smb_init(SMB_COM_TRANSACTION2, 15, pTcon, (void **) &pSMB,
1485 pSMB->MaxSetupCount = 0;
1489 pSMB->Reserved2 = 0;
1490 param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4;
1491 offset = param_offset + params;
1493 data_offset = (char *) (&pSMB->hdr.Protocol) + offset;
1494 rename_info = (struct set_file_rename *) data_offset;
1495 pSMB->MaxParameterCount = cpu_to_le16(2);
1496 pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB PDU from sess */
1497 pSMB->SetupCount = 1;
1498 pSMB->Reserved3 = 0;
1499 pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION);
1500 byte_count = 3 /* pad */ + params;
1501 pSMB->ParameterCount = cpu_to_le16(params);
1502 pSMB->TotalParameterCount = pSMB->ParameterCount;
1503 pSMB->ParameterOffset = cpu_to_le16(param_offset);
1504 pSMB->DataOffset = cpu_to_le16(offset);
1505 /* construct random name ".cifs_tmp<inodenum><mid>" */
1506 rename_info->overwrite = cpu_to_le32(1);
1507 rename_info->root_fid = 0;
1508 /* unicode only call */
1509 if(target_name == NULL) {
1510 sprintf(dummy_string,"cifs%x",pSMB->hdr.Mid);
1511 len_of_str = cifsConvertToUCS((__le16 *)rename_info->target_name,
1512 dummy_string, 24, nls_codepage, remap);
1514 len_of_str = cifsConvertToUCS((__le16 *)rename_info->target_name,
1515 target_name, PATH_MAX, nls_codepage, remap);
1517 rename_info->target_name_len = cpu_to_le32(2 * len_of_str);
1518 count = 12 /* sizeof(struct set_file_rename) */ + (2 * len_of_str) + 2;
1519 byte_count += count;
1520 pSMB->DataCount = cpu_to_le16(count);
1521 pSMB->TotalDataCount = pSMB->DataCount;
1523 pSMB->InformationLevel =
1524 cpu_to_le16(SMB_SET_FILE_RENAME_INFORMATION);
1525 pSMB->Reserved4 = 0;
1526 pSMB->hdr.smb_buf_length += byte_count;
1527 pSMB->ByteCount = cpu_to_le16(byte_count);
1528 rc = SendReceive(xid, pTcon->ses, (struct smb_hdr *) pSMB,
1529 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
1530 cifs_stats_inc(&pTcon->num_t2renames);
1532 cFYI(1,("Send error in Rename (by file handle) = %d", rc));
1535 cifs_buf_release(pSMB);
1537 /* Note: On -EAGAIN error only caller can retry on handle based calls
1538 since file handle passed in no longer valid */
1544 CIFSSMBCopy(const int xid, struct cifsTconInfo *tcon, const char * fromName,
1545 const __u16 target_tid, const char *toName, const int flags,
1546 const struct nls_table *nls_codepage, int remap)
1549 COPY_REQ *pSMB = NULL;
1550 COPY_RSP *pSMBr = NULL;
1552 int name_len, name_len2;
1555 cFYI(1, ("In CIFSSMBCopy"));
1557 rc = smb_init(SMB_COM_COPY, 1, tcon, (void **) &pSMB,
1562 pSMB->BufferFormat = 0x04;
1563 pSMB->Tid2 = target_tid;
1565 pSMB->Flags = cpu_to_le16(flags & COPY_TREE);
1567 if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
1568 name_len = cifsConvertToUCS((__le16 *) pSMB->OldFileName,
1569 fromName, PATH_MAX, nls_codepage,
1571 name_len++; /* trailing null */
1573 pSMB->OldFileName[name_len] = 0x04; /* pad */
1574 /* protocol requires ASCII signature byte on Unicode string */
1575 pSMB->OldFileName[name_len + 1] = 0x00;
1576 name_len2 = cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2],
1577 toName, PATH_MAX, nls_codepage, remap);
1578 name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ;
1579 name_len2 *= 2; /* convert to bytes */
1580 } else { /* BB improve the check for buffer overruns BB */
1581 name_len = strnlen(fromName, PATH_MAX);
1582 name_len++; /* trailing null */
1583 strncpy(pSMB->OldFileName, fromName, name_len);
1584 name_len2 = strnlen(toName, PATH_MAX);
1585 name_len2++; /* trailing null */
1586 pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */
1587 strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2);
1588 name_len2++; /* trailing null */
1589 name_len2++; /* signature byte */
1592 count = 1 /* 1st signature byte */ + name_len + name_len2;
1593 pSMB->hdr.smb_buf_length += count;
1594 pSMB->ByteCount = cpu_to_le16(count);
1596 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
1597 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
1599 cFYI(1, ("Send error in copy = %d with %d files copied",
1600 rc, le16_to_cpu(pSMBr->CopyCount)));
1603 cifs_buf_release(pSMB);
1612 CIFSUnixCreateSymLink(const int xid, struct cifsTconInfo *tcon,
1613 const char *fromName, const char *toName,
1614 const struct nls_table *nls_codepage)
1616 TRANSACTION2_SPI_REQ *pSMB = NULL;
1617 TRANSACTION2_SPI_RSP *pSMBr = NULL;
1620 int name_len_target;
1622 int bytes_returned = 0;
1623 __u16 params, param_offset, offset, byte_count;
1625 cFYI(1, ("In Symlink Unix style"));
1627 rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
1632 if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
1634 cifs_strtoUCS((__le16 *) pSMB->FileName, fromName, PATH_MAX
1635 /* find define for this maxpathcomponent */
1637 name_len++; /* trailing null */
1640 } else { /* BB improve the check for buffer overruns BB */
1641 name_len = strnlen(fromName, PATH_MAX);
1642 name_len++; /* trailing null */
1643 strncpy(pSMB->FileName, fromName, name_len);
1645 params = 6 + name_len;
1646 pSMB->MaxSetupCount = 0;
1650 pSMB->Reserved2 = 0;
1651 param_offset = offsetof(struct smb_com_transaction2_spi_req,
1652 InformationLevel) - 4;
1653 offset = param_offset + params;
1655 data_offset = (char *) (&pSMB->hdr.Protocol) + offset;
1656 if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
1658 cifs_strtoUCS((__le16 *) data_offset, toName, PATH_MAX
1659 /* find define for this maxpathcomponent */
1661 name_len_target++; /* trailing null */
1662 name_len_target *= 2;
1663 } else { /* BB improve the check for buffer overruns BB */
1664 name_len_target = strnlen(toName, PATH_MAX);
1665 name_len_target++; /* trailing null */
1666 strncpy(data_offset, toName, name_len_target);
1669 pSMB->MaxParameterCount = cpu_to_le16(2);
1670 /* BB find exact max on data count below from sess */
1671 pSMB->MaxDataCount = cpu_to_le16(1000);
1672 pSMB->SetupCount = 1;
1673 pSMB->Reserved3 = 0;
1674 pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION);
1675 byte_count = 3 /* pad */ + params + name_len_target;
1676 pSMB->DataCount = cpu_to_le16(name_len_target);
1677 pSMB->ParameterCount = cpu_to_le16(params);
1678 pSMB->TotalDataCount = pSMB->DataCount;
1679 pSMB->TotalParameterCount = pSMB->ParameterCount;
1680 pSMB->ParameterOffset = cpu_to_le16(param_offset);
1681 pSMB->DataOffset = cpu_to_le16(offset);
1682 pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_LINK);
1683 pSMB->Reserved4 = 0;
1684 pSMB->hdr.smb_buf_length += byte_count;
1685 pSMB->ByteCount = cpu_to_le16(byte_count);
1686 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
1687 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
1688 cifs_stats_inc(&tcon->num_symlinks);
1691 ("Send error in SetPathInfo (create symlink) = %d",
1696 cifs_buf_release(pSMB);
1699 goto createSymLinkRetry;
1705 CIFSUnixCreateHardLink(const int xid, struct cifsTconInfo *tcon,
1706 const char *fromName, const char *toName,
1707 const struct nls_table *nls_codepage, int remap)
1709 TRANSACTION2_SPI_REQ *pSMB = NULL;
1710 TRANSACTION2_SPI_RSP *pSMBr = NULL;
1713 int name_len_target;
1715 int bytes_returned = 0;
1716 __u16 params, param_offset, offset, byte_count;
1718 cFYI(1, ("In Create Hard link Unix style"));
1719 createHardLinkRetry:
1720 rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
1725 if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
1726 name_len = cifsConvertToUCS((__le16 *) pSMB->FileName, toName,
1727 PATH_MAX, nls_codepage, remap);
1728 name_len++; /* trailing null */
1731 } else { /* BB improve the check for buffer overruns BB */
1732 name_len = strnlen(toName, PATH_MAX);
1733 name_len++; /* trailing null */
1734 strncpy(pSMB->FileName, toName, name_len);
1736 params = 6 + name_len;
1737 pSMB->MaxSetupCount = 0;
1741 pSMB->Reserved2 = 0;
1742 param_offset = offsetof(struct smb_com_transaction2_spi_req,
1743 InformationLevel) - 4;
1744 offset = param_offset + params;
1746 data_offset = (char *) (&pSMB->hdr.Protocol) + offset;
1747 if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
1749 cifsConvertToUCS((__le16 *) data_offset, fromName, PATH_MAX,
1750 nls_codepage, remap);
1751 name_len_target++; /* trailing null */
1752 name_len_target *= 2;
1753 } else { /* BB improve the check for buffer overruns BB */
1754 name_len_target = strnlen(fromName, PATH_MAX);
1755 name_len_target++; /* trailing null */
1756 strncpy(data_offset, fromName, name_len_target);
1759 pSMB->MaxParameterCount = cpu_to_le16(2);
1760 /* BB find exact max on data count below from sess*/
1761 pSMB->MaxDataCount = cpu_to_le16(1000);
1762 pSMB->SetupCount = 1;
1763 pSMB->Reserved3 = 0;
1764 pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION);
1765 byte_count = 3 /* pad */ + params + name_len_target;
1766 pSMB->ParameterCount = cpu_to_le16(params);
1767 pSMB->TotalParameterCount = pSMB->ParameterCount;
1768 pSMB->DataCount = cpu_to_le16(name_len_target);
1769 pSMB->TotalDataCount = pSMB->DataCount;
1770 pSMB->ParameterOffset = cpu_to_le16(param_offset);
1771 pSMB->DataOffset = cpu_to_le16(offset);
1772 pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_HLINK);
1773 pSMB->Reserved4 = 0;
1774 pSMB->hdr.smb_buf_length += byte_count;
1775 pSMB->ByteCount = cpu_to_le16(byte_count);
1776 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
1777 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
1778 cifs_stats_inc(&tcon->num_hardlinks);
1780 cFYI(1, ("Send error in SetPathInfo (hard link) = %d", rc));
1783 cifs_buf_release(pSMB);
1785 goto createHardLinkRetry;
1791 CIFSCreateHardLink(const int xid, struct cifsTconInfo *tcon,
1792 const char *fromName, const char *toName,
1793 const struct nls_table *nls_codepage, int remap)
1796 NT_RENAME_REQ *pSMB = NULL;
1797 RENAME_RSP *pSMBr = NULL;
1799 int name_len, name_len2;
1802 cFYI(1, ("In CIFSCreateHardLink"));
1803 winCreateHardLinkRetry:
1805 rc = smb_init(SMB_COM_NT_RENAME, 4, tcon, (void **) &pSMB,
1810 pSMB->SearchAttributes =
1811 cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM |
1813 pSMB->Flags = cpu_to_le16(CREATE_HARD_LINK);
1814 pSMB->ClusterCount = 0;
1816 pSMB->BufferFormat = 0x04;
1818 if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
1820 cifsConvertToUCS((__le16 *) pSMB->OldFileName, fromName,
1821 PATH_MAX, nls_codepage, remap);
1822 name_len++; /* trailing null */
1824 pSMB->OldFileName[name_len] = 0; /* pad */
1825 pSMB->OldFileName[name_len + 1] = 0x04;
1827 cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2],
1828 toName, PATH_MAX, nls_codepage, remap);
1829 name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ;
1830 name_len2 *= 2; /* convert to bytes */
1831 } else { /* BB improve the check for buffer overruns BB */
1832 name_len = strnlen(fromName, PATH_MAX);
1833 name_len++; /* trailing null */
1834 strncpy(pSMB->OldFileName, fromName, name_len);
1835 name_len2 = strnlen(toName, PATH_MAX);
1836 name_len2++; /* trailing null */
1837 pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */
1838 strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2);
1839 name_len2++; /* trailing null */
1840 name_len2++; /* signature byte */
1843 count = 1 /* string type byte */ + name_len + name_len2;
1844 pSMB->hdr.smb_buf_length += count;
1845 pSMB->ByteCount = cpu_to_le16(count);
1847 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
1848 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
1849 cifs_stats_inc(&tcon->num_hardlinks);
1851 cFYI(1, ("Send error in hard link (NT rename) = %d", rc));
1853 cifs_buf_release(pSMB);
1855 goto winCreateHardLinkRetry;
1861 CIFSSMBUnixQuerySymLink(const int xid, struct cifsTconInfo *tcon,
1862 const unsigned char *searchName,
1863 char *symlinkinfo, const int buflen,
1864 const struct nls_table *nls_codepage)
1866 /* SMB_QUERY_FILE_UNIX_LINK */
1867 TRANSACTION2_QPI_REQ *pSMB = NULL;
1868 TRANSACTION2_QPI_RSP *pSMBr = NULL;
1872 __u16 params, byte_count;
1874 cFYI(1, ("In QPathSymLinkInfo (Unix) for path %s", searchName));
1877 rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
1882 if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
1884 cifs_strtoUCS((__le16 *) pSMB->FileName, searchName, PATH_MAX
1885 /* find define for this maxpathcomponent */
1887 name_len++; /* trailing null */
1889 } else { /* BB improve the check for buffer overruns BB */
1890 name_len = strnlen(searchName, PATH_MAX);
1891 name_len++; /* trailing null */
1892 strncpy(pSMB->FileName, searchName, name_len);
1895 params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ;
1896 pSMB->TotalDataCount = 0;
1897 pSMB->MaxParameterCount = cpu_to_le16(2);
1898 /* BB find exact max data count below from sess structure BB */
1899 pSMB->MaxDataCount = cpu_to_le16(4000);
1900 pSMB->MaxSetupCount = 0;
1904 pSMB->Reserved2 = 0;
1905 pSMB->ParameterOffset = cpu_to_le16(offsetof(
1906 struct smb_com_transaction2_qpi_req ,InformationLevel) - 4);
1907 pSMB->DataCount = 0;
1908 pSMB->DataOffset = 0;
1909 pSMB->SetupCount = 1;
1910 pSMB->Reserved3 = 0;
1911 pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION);
1912 byte_count = params + 1 /* pad */ ;
1913 pSMB->TotalParameterCount = cpu_to_le16(params);
1914 pSMB->ParameterCount = pSMB->TotalParameterCount;
1915 pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_UNIX_LINK);
1916 pSMB->Reserved4 = 0;
1917 pSMB->hdr.smb_buf_length += byte_count;
1918 pSMB->ByteCount = cpu_to_le16(byte_count);
1920 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
1921 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
1923 cFYI(1, ("Send error in QuerySymLinkInfo = %d", rc));
1925 /* decode response */
1927 rc = validate_t2((struct smb_t2_rsp *)pSMBr);
1928 if (rc || (pSMBr->ByteCount < 2))
1929 /* BB also check enough total bytes returned */
1930 rc = -EIO; /* bad smb */
1932 __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
1933 __u16 count = le16_to_cpu(pSMBr->t2.DataCount);
1935 if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) {
1936 name_len = UniStrnlen((wchar_t *) ((char *)
1937 &pSMBr->hdr.Protocol +data_offset),
1938 min_t(const int, buflen,count) / 2);
1939 /* BB FIXME investigate remapping reserved chars here */
1940 cifs_strfromUCS_le(symlinkinfo,
1941 (__le16 *) ((char *)&pSMBr->hdr.Protocol +
1943 name_len, nls_codepage);
1945 strncpy(symlinkinfo,
1946 (char *) &pSMBr->hdr.Protocol +
1948 min_t(const int, buflen, count));
1950 symlinkinfo[buflen] = 0;
1951 /* just in case so calling code does not go off the end of buffer */
1954 cifs_buf_release(pSMB);
1956 goto querySymLinkRetry;
1960 /* Initialize NT TRANSACT SMB into small smb request buffer.
1961 This assumes that all NT TRANSACTS that we init here have
1962 total parm and data under about 400 bytes (to fit in small cifs
1963 buffer size), which is the case so far, it easily fits. NB:
1964 Setup words themselves and ByteCount
1965 MaxSetupCount (size of returned setup area) and
1966 MaxParameterCount (returned parms size) must be set by caller */
1968 smb_init_ntransact(const __u16 sub_command, const int setup_count,
1969 const int parm_len, struct cifsTconInfo *tcon,
1974 struct smb_com_ntransact_req * pSMB;
1976 rc = small_smb_init(SMB_COM_NT_TRANSACT, 19 + setup_count, tcon,
1980 *ret_buf = (void *)pSMB;
1982 pSMB->TotalParameterCount = cpu_to_le32(parm_len);
1983 pSMB->TotalDataCount = 0;
1984 pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf -
1985 MAX_CIFS_HDR_SIZE) & 0xFFFFFF00);
1986 pSMB->ParameterCount = pSMB->TotalParameterCount;
1987 pSMB->DataCount = pSMB->TotalDataCount;
1988 temp_offset = offsetof(struct smb_com_ntransact_req, Parms) +
1989 (setup_count * 2) - 4 /* for rfc1001 length itself */;
1990 pSMB->ParameterOffset = cpu_to_le32(temp_offset);
1991 pSMB->DataOffset = cpu_to_le32(temp_offset + parm_len);
1992 pSMB->SetupCount = setup_count; /* no need to le convert byte fields */
1993 pSMB->SubCommand = cpu_to_le16(sub_command);
1998 validate_ntransact(char * buf, char ** ppparm, char ** ppdata,
1999 int * pdatalen, int * pparmlen)
2002 __u32 data_count, data_offset, parm_count, parm_offset;
2003 struct smb_com_ntransact_rsp * pSMBr;
2008 pSMBr = (struct smb_com_ntransact_rsp *)buf;
2010 /* ByteCount was converted from little endian in SendReceive */
2011 end_of_smb = 2 /* sizeof byte count */ + pSMBr->ByteCount +
2012 (char *)&pSMBr->ByteCount;
2015 data_offset = le32_to_cpu(pSMBr->DataOffset);
2016 data_count = le32_to_cpu(pSMBr->DataCount);
2017 parm_offset = le32_to_cpu(pSMBr->ParameterOffset);
2018 parm_count = le32_to_cpu(pSMBr->ParameterCount);
2020 *ppparm = (char *)&pSMBr->hdr.Protocol + parm_offset;
2021 *ppdata = (char *)&pSMBr->hdr.Protocol + data_offset;
2023 /* should we also check that parm and data areas do not overlap? */
2024 if(*ppparm > end_of_smb) {
2025 cFYI(1,("parms start after end of smb"));
2027 } else if(parm_count + *ppparm > end_of_smb) {
2028 cFYI(1,("parm end after end of smb"));
2030 } else if(*ppdata > end_of_smb) {
2031 cFYI(1,("data starts after end of smb"));
2033 } else if(data_count + *ppdata > end_of_smb) {
2034 cFYI(1,("data %p + count %d (%p) ends after end of smb %p start %p",
2035 *ppdata, data_count, (data_count + *ppdata), end_of_smb, pSMBr)); /* BB FIXME */
2037 } else if(parm_count + data_count > pSMBr->ByteCount) {
2038 cFYI(1,("parm count and data count larger than SMB"));
2045 CIFSSMBQueryReparseLinkInfo(const int xid, struct cifsTconInfo *tcon,
2046 const unsigned char *searchName,
2047 char *symlinkinfo, const int buflen,__u16 fid,
2048 const struct nls_table *nls_codepage)
2053 struct smb_com_transaction_ioctl_req * pSMB;
2054 struct smb_com_transaction_ioctl_rsp * pSMBr;
2056 cFYI(1, ("In Windows reparse style QueryLink for path %s", searchName));
2057 rc = smb_init(SMB_COM_NT_TRANSACT, 23, tcon, (void **) &pSMB,
2062 pSMB->TotalParameterCount = 0 ;
2063 pSMB->TotalDataCount = 0;
2064 pSMB->MaxParameterCount = cpu_to_le32(2);
2065 /* BB find exact data count max from sess structure BB */
2066 pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf -
2067 MAX_CIFS_HDR_SIZE) & 0xFFFFFF00);
2068 pSMB->MaxSetupCount = 4;
2070 pSMB->ParameterOffset = 0;
2071 pSMB->DataCount = 0;
2072 pSMB->DataOffset = 0;
2073 pSMB->SetupCount = 4;
2074 pSMB->SubCommand = cpu_to_le16(NT_TRANSACT_IOCTL);
2075 pSMB->ParameterCount = pSMB->TotalParameterCount;
2076 pSMB->FunctionCode = cpu_to_le32(FSCTL_GET_REPARSE_POINT);
2077 pSMB->IsFsctl = 1; /* FSCTL */
2078 pSMB->IsRootFlag = 0;
2079 pSMB->Fid = fid; /* file handle always le */
2080 pSMB->ByteCount = 0;
2082 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
2083 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
2085 cFYI(1, ("Send error in QueryReparseLinkInfo = %d", rc));
2086 } else { /* decode response */
2087 __u32 data_offset = le32_to_cpu(pSMBr->DataOffset);
2088 __u32 data_count = le32_to_cpu(pSMBr->DataCount);
2089 if ((pSMBr->ByteCount < 2) || (data_offset > 512))
2090 /* BB also check enough total bytes returned */
2091 rc = -EIO; /* bad smb */
2093 if(data_count && (data_count < 2048)) {
2094 char * end_of_smb = 2 /* sizeof byte count */ +
2096 (char *)&pSMBr->ByteCount;
2098 struct reparse_data * reparse_buf = (struct reparse_data *)
2099 ((char *)&pSMBr->hdr.Protocol + data_offset);
2100 if((char*)reparse_buf >= end_of_smb) {
2104 if((reparse_buf->LinkNamesBuf +
2105 reparse_buf->TargetNameOffset +
2106 reparse_buf->TargetNameLen) >
2108 cFYI(1,("reparse buf extended beyond SMB"));
2113 if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) {
2114 name_len = UniStrnlen((wchar_t *)
2115 (reparse_buf->LinkNamesBuf +
2116 reparse_buf->TargetNameOffset),
2117 min(buflen/2, reparse_buf->TargetNameLen / 2));
2118 cifs_strfromUCS_le(symlinkinfo,
2119 (__le16 *) (reparse_buf->LinkNamesBuf +
2120 reparse_buf->TargetNameOffset),
2121 name_len, nls_codepage);
2122 } else { /* ASCII names */
2123 strncpy(symlinkinfo,reparse_buf->LinkNamesBuf +
2124 reparse_buf->TargetNameOffset,
2125 min_t(const int, buflen, reparse_buf->TargetNameLen));
2129 cFYI(1,("Invalid return data count on get reparse info ioctl"));
2131 symlinkinfo[buflen] = 0; /* just in case so the caller
2132 does not go off the end of the buffer */
2133 cFYI(1,("readlink result - %s ",symlinkinfo));
2137 cifs_buf_release(pSMB);
2139 /* Note: On -EAGAIN error only caller can retry on handle based calls
2140 since file handle passed in no longer valid */
2145 #ifdef CONFIG_CIFS_POSIX
2147 /*Convert an Access Control Entry from wire format to local POSIX xattr format*/
2148 static void cifs_convert_ace(posix_acl_xattr_entry * ace, struct cifs_posix_ace * cifs_ace)
2150 /* u8 cifs fields do not need le conversion */
2151 ace->e_perm = cpu_to_le16(cifs_ace->cifs_e_perm);
2152 ace->e_tag = cpu_to_le16(cifs_ace->cifs_e_tag);
2153 ace->e_id = cpu_to_le32(le64_to_cpu(cifs_ace->cifs_uid));
2154 /* cFYI(1,("perm %d tag %d id %d",ace->e_perm,ace->e_tag,ace->e_id)); */
2159 /* Convert ACL from CIFS POSIX wire format to local Linux POSIX ACL xattr */
2160 static int cifs_copy_posix_acl(char * trgt,char * src, const int buflen,
2161 const int acl_type,const int size_of_data_area)
2166 struct cifs_posix_ace * pACE;
2167 struct cifs_posix_acl * cifs_acl = (struct cifs_posix_acl *)src;
2168 posix_acl_xattr_header * local_acl = (posix_acl_xattr_header *)trgt;
2170 if (le16_to_cpu(cifs_acl->version) != CIFS_ACL_VERSION)
2173 if(acl_type & ACL_TYPE_ACCESS) {
2174 count = le16_to_cpu(cifs_acl->access_entry_count);
2175 pACE = &cifs_acl->ace_array[0];
2176 size = sizeof(struct cifs_posix_acl);
2177 size += sizeof(struct cifs_posix_ace) * count;
2178 /* check if we would go beyond end of SMB */
2179 if(size_of_data_area < size) {
2180 cFYI(1,("bad CIFS POSIX ACL size %d vs. %d",size_of_data_area,size));
2183 } else if(acl_type & ACL_TYPE_DEFAULT) {
2184 count = le16_to_cpu(cifs_acl->access_entry_count);
2185 size = sizeof(struct cifs_posix_acl);
2186 size += sizeof(struct cifs_posix_ace) * count;
2187 /* skip past access ACEs to get to default ACEs */
2188 pACE = &cifs_acl->ace_array[count];
2189 count = le16_to_cpu(cifs_acl->default_entry_count);
2190 size += sizeof(struct cifs_posix_ace) * count;
2191 /* check if we would go beyond end of SMB */
2192 if(size_of_data_area < size)
2199 size = posix_acl_xattr_size(count);
2200 if((buflen == 0) || (local_acl == NULL)) {
2201 /* used to query ACL EA size */
2202 } else if(size > buflen) {
2204 } else /* buffer big enough */ {
2205 local_acl->a_version = cpu_to_le32(POSIX_ACL_XATTR_VERSION);
2206 for(i = 0;i < count ;i++) {
2207 cifs_convert_ace(&local_acl->a_entries[i],pACE);
2214 static __u16 convert_ace_to_cifs_ace(struct cifs_posix_ace * cifs_ace,
2215 const posix_acl_xattr_entry * local_ace)
2217 __u16 rc = 0; /* 0 = ACL converted ok */
2219 cifs_ace->cifs_e_perm = le16_to_cpu(local_ace->e_perm);
2220 cifs_ace->cifs_e_tag = le16_to_cpu(local_ace->e_tag);
2221 /* BB is there a better way to handle the large uid? */
2222 if(local_ace->e_id == cpu_to_le32(-1)) {
2223 /* Probably no need to le convert -1 on any arch but can not hurt */
2224 cifs_ace->cifs_uid = cpu_to_le64(-1);
2226 cifs_ace->cifs_uid = cpu_to_le64(le32_to_cpu(local_ace->e_id));
2227 /*cFYI(1,("perm %d tag %d id %d",ace->e_perm,ace->e_tag,ace->e_id));*/
2231 /* Convert ACL from local Linux POSIX xattr to CIFS POSIX ACL wire format */
2232 static __u16 ACL_to_cifs_posix(char * parm_data,const char * pACL,const int buflen,
2236 struct cifs_posix_acl * cifs_acl = (struct cifs_posix_acl *)parm_data;
2237 posix_acl_xattr_header * local_acl = (posix_acl_xattr_header *)pACL;
2241 if((buflen == 0) || (pACL == NULL) || (cifs_acl == NULL))
2244 count = posix_acl_xattr_count((size_t)buflen);
2245 cFYI(1,("setting acl with %d entries from buf of length %d and version of %d",
2246 count, buflen, le32_to_cpu(local_acl->a_version)));
2247 if(le32_to_cpu(local_acl->a_version) != 2) {
2248 cFYI(1,("unknown POSIX ACL version %d",
2249 le32_to_cpu(local_acl->a_version)));
2252 cifs_acl->version = cpu_to_le16(1);
2253 if(acl_type == ACL_TYPE_ACCESS)
2254 cifs_acl->access_entry_count = cpu_to_le16(count);
2255 else if(acl_type == ACL_TYPE_DEFAULT)
2256 cifs_acl->default_entry_count = cpu_to_le16(count);
2258 cFYI(1,("unknown ACL type %d",acl_type));
2261 for(i=0;i<count;i++) {
2262 rc = convert_ace_to_cifs_ace(&cifs_acl->ace_array[i],
2263 &local_acl->a_entries[i]);
2265 /* ACE not converted */
2270 rc = (__u16)(count * sizeof(struct cifs_posix_ace));
2271 rc += sizeof(struct cifs_posix_acl);
2272 /* BB add check to make sure ACL does not overflow SMB */
2278 CIFSSMBGetPosixACL(const int xid, struct cifsTconInfo *tcon,
2279 const unsigned char *searchName,
2280 char *acl_inf, const int buflen, const int acl_type,
2281 const struct nls_table *nls_codepage, int remap)
2283 /* SMB_QUERY_POSIX_ACL */
2284 TRANSACTION2_QPI_REQ *pSMB = NULL;
2285 TRANSACTION2_QPI_RSP *pSMBr = NULL;
2289 __u16 params, byte_count;
2291 cFYI(1, ("In GetPosixACL (Unix) for path %s", searchName));
2294 rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
2299 if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
2301 cifsConvertToUCS((__le16 *) pSMB->FileName, searchName,
2302 PATH_MAX, nls_codepage, remap);
2303 name_len++; /* trailing null */
2305 pSMB->FileName[name_len] = 0;
2306 pSMB->FileName[name_len+1] = 0;
2307 } else { /* BB improve the check for buffer overruns BB */
2308 name_len = strnlen(searchName, PATH_MAX);
2309 name_len++; /* trailing null */
2310 strncpy(pSMB->FileName, searchName, name_len);
2313 params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ;
2314 pSMB->TotalDataCount = 0;
2315 pSMB->MaxParameterCount = cpu_to_le16(2);
2316 /* BB find exact max data count below from sess structure BB */
2317 pSMB->MaxDataCount = cpu_to_le16(4000);
2318 pSMB->MaxSetupCount = 0;
2322 pSMB->Reserved2 = 0;
2323 pSMB->ParameterOffset = cpu_to_le16(
2324 offsetof(struct smb_com_transaction2_qpi_req ,InformationLevel) - 4);
2325 pSMB->DataCount = 0;
2326 pSMB->DataOffset = 0;
2327 pSMB->SetupCount = 1;
2328 pSMB->Reserved3 = 0;
2329 pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION);
2330 byte_count = params + 1 /* pad */ ;
2331 pSMB->TotalParameterCount = cpu_to_le16(params);
2332 pSMB->ParameterCount = pSMB->TotalParameterCount;
2333 pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_POSIX_ACL);
2334 pSMB->Reserved4 = 0;
2335 pSMB->hdr.smb_buf_length += byte_count;
2336 pSMB->ByteCount = cpu_to_le16(byte_count);
2338 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
2339 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
2340 cifs_stats_inc(&tcon->num_acl_get);
2342 cFYI(1, ("Send error in Query POSIX ACL = %d", rc));
2344 /* decode response */
2346 rc = validate_t2((struct smb_t2_rsp *)pSMBr);
2347 if (rc || (pSMBr->ByteCount < 2))
2348 /* BB also check enough total bytes returned */
2349 rc = -EIO; /* bad smb */
2351 __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
2352 __u16 count = le16_to_cpu(pSMBr->t2.DataCount);
2353 rc = cifs_copy_posix_acl(acl_inf,
2354 (char *)&pSMBr->hdr.Protocol+data_offset,
2355 buflen,acl_type,count);
2358 cifs_buf_release(pSMB);
2365 CIFSSMBSetPosixACL(const int xid, struct cifsTconInfo *tcon,
2366 const unsigned char *fileName,
2367 const char *local_acl, const int buflen,
2369 const struct nls_table *nls_codepage, int remap)
2371 struct smb_com_transaction2_spi_req *pSMB = NULL;
2372 struct smb_com_transaction2_spi_rsp *pSMBr = NULL;
2376 int bytes_returned = 0;
2377 __u16 params, byte_count, data_count, param_offset, offset;
2379 cFYI(1, ("In SetPosixACL (Unix) for path %s", fileName));
2381 rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
2385 if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
2387 cifsConvertToUCS((__le16 *) pSMB->FileName, fileName,
2388 PATH_MAX, nls_codepage, remap);
2389 name_len++; /* trailing null */
2391 } else { /* BB improve the check for buffer overruns BB */
2392 name_len = strnlen(fileName, PATH_MAX);
2393 name_len++; /* trailing null */
2394 strncpy(pSMB->FileName, fileName, name_len);
2396 params = 6 + name_len;
2397 pSMB->MaxParameterCount = cpu_to_le16(2);
2398 pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB size from sess */
2399 pSMB->MaxSetupCount = 0;
2403 pSMB->Reserved2 = 0;
2404 param_offset = offsetof(struct smb_com_transaction2_spi_req,
2405 InformationLevel) - 4;
2406 offset = param_offset + params;
2407 parm_data = ((char *) &pSMB->hdr.Protocol) + offset;
2408 pSMB->ParameterOffset = cpu_to_le16(param_offset);
2410 /* convert to on the wire format for POSIX ACL */
2411 data_count = ACL_to_cifs_posix(parm_data,local_acl,buflen,acl_type);
2413 if(data_count == 0) {
2415 goto setACLerrorExit;
2417 pSMB->DataOffset = cpu_to_le16(offset);
2418 pSMB->SetupCount = 1;
2419 pSMB->Reserved3 = 0;
2420 pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION);
2421 pSMB->InformationLevel = cpu_to_le16(SMB_SET_POSIX_ACL);
2422 byte_count = 3 /* pad */ + params + data_count;
2423 pSMB->DataCount = cpu_to_le16(data_count);
2424 pSMB->TotalDataCount = pSMB->DataCount;
2425 pSMB->ParameterCount = cpu_to_le16(params);
2426 pSMB->TotalParameterCount = pSMB->ParameterCount;
2427 pSMB->Reserved4 = 0;
2428 pSMB->hdr.smb_buf_length += byte_count;
2429 pSMB->ByteCount = cpu_to_le16(byte_count);
2430 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
2431 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
2433 cFYI(1, ("Set POSIX ACL returned %d", rc));
2437 cifs_buf_release(pSMB);
2443 /* BB fix tabs in this function FIXME BB */
2445 CIFSGetExtAttr(const int xid, struct cifsTconInfo *tcon,
2446 const int netfid, __u64 * pExtAttrBits, __u64 *pMask)
2449 struct smb_t2_qfi_req *pSMB = NULL;
2450 struct smb_t2_qfi_rsp *pSMBr = NULL;
2452 __u16 params, byte_count;
2454 cFYI(1,("In GetExtAttr"));
2459 rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
2464 params = 2 /* level */ +2 /* fid */;
2465 pSMB->t2.TotalDataCount = 0;
2466 pSMB->t2.MaxParameterCount = cpu_to_le16(4);
2467 /* BB find exact max data count below from sess structure BB */
2468 pSMB->t2.MaxDataCount = cpu_to_le16(4000);
2469 pSMB->t2.MaxSetupCount = 0;
2470 pSMB->t2.Reserved = 0;
2472 pSMB->t2.Timeout = 0;
2473 pSMB->t2.Reserved2 = 0;
2474 pSMB->t2.ParameterOffset = cpu_to_le16(offsetof(struct smb_t2_qfi_req,
2476 pSMB->t2.DataCount = 0;
2477 pSMB->t2.DataOffset = 0;
2478 pSMB->t2.SetupCount = 1;
2479 pSMB->t2.Reserved3 = 0;
2480 pSMB->t2.SubCommand = cpu_to_le16(TRANS2_QUERY_FILE_INFORMATION);
2481 byte_count = params + 1 /* pad */ ;
2482 pSMB->t2.TotalParameterCount = cpu_to_le16(params);
2483 pSMB->t2.ParameterCount = pSMB->t2.TotalParameterCount;
2484 pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_ATTR_FLAGS);
2487 pSMB->hdr.smb_buf_length += byte_count;
2488 pSMB->t2.ByteCount = cpu_to_le16(byte_count);
2490 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
2491 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
2493 cFYI(1, ("error %d in GetExtAttr", rc));
2495 /* decode response */
2496 rc = validate_t2((struct smb_t2_rsp *)pSMBr);
2497 if (rc || (pSMBr->ByteCount < 2))
2498 /* BB also check enough total bytes returned */
2499 /* If rc should we check for EOPNOSUPP and
2500 disable the srvino flag? or in caller? */
2501 rc = -EIO; /* bad smb */
2503 __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
2504 __u16 count = le16_to_cpu(pSMBr->t2.DataCount);
2505 struct file_chattr_info * pfinfo;
2506 /* BB Do we need a cast or hash here ? */
2508 cFYI(1, ("Illegal size ret in GetExtAttr"));
2512 pfinfo = (struct file_chattr_info *)
2513 (data_offset + (char *) &pSMBr->hdr.Protocol);
2514 *pExtAttrBits = le64_to_cpu(pfinfo->mode);
2515 *pMask = le64_to_cpu(pfinfo->mask);
2519 cifs_buf_release(pSMB);
2521 goto GetExtAttrRetry;
2526 #endif /* CONFIG_POSIX */
2529 /* security id for everyone */
2530 const struct cifs_sid sid_everyone = {1, 1, {0, 0, 0, 0, 0, 0}, {0, 0, 0, 0}};
2532 const struct cifs_sid sid_user = {1, 2 , {0, 0, 0, 0, 0, 5}, {32, 545, 0, 0}};
2534 /* Convert CIFS ACL to POSIX form */
2535 static int parse_sec_desc(struct cifs_sid * psec_desc, int acl_len)
2540 /* Get Security Descriptor (by handle) from remote server for a file or dir */
2542 CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid,
2543 /* BB fix up return info */ char *acl_inf, const int buflen,
2544 const int acl_type /* ACCESS/DEFAULT not sure implication */)
2548 QUERY_SEC_DESC_REQ * pSMB;
2551 cFYI(1, ("GetCifsACL"));
2553 rc = smb_init_ntransact(NT_TRANSACT_QUERY_SECURITY_DESC, 0,
2554 8 /* parm len */, tcon, (void **) &pSMB);
2558 pSMB->MaxParameterCount = cpu_to_le32(4);
2559 /* BB TEST with big acls that might need to be e.g. larger than 16K */
2560 pSMB->MaxSetupCount = 0;
2561 pSMB->Fid = fid; /* file handle always le */
2562 pSMB->AclFlags = cpu_to_le32(CIFS_ACL_OWNER | CIFS_ACL_GROUP |
2564 pSMB->ByteCount = cpu_to_le16(11); /* 3 bytes pad + 8 bytes parm */
2565 pSMB->hdr.smb_buf_length += 11;
2566 iov[0].iov_base = (char *)pSMB;
2567 iov[0].iov_len = pSMB->hdr.smb_buf_length + 4;
2569 rc = SendReceive2(xid, tcon->ses, iov, 1 /* num iovec */, &buf_type, 0);
2570 cifs_stats_inc(&tcon->num_acl_get);
2572 cFYI(1, ("Send error in QuerySecDesc = %d", rc));
2573 } else { /* decode response */
2574 struct cifs_sid * psec_desc;
2579 struct smb_com_ntransact_rsp * pSMBr;
2581 /* validate_nttransact */
2582 rc = validate_ntransact(iov[0].iov_base, (char **)&parm,
2583 (char **)&psec_desc,
2584 &parm_len, &data_len);
2588 pSMBr = (struct smb_com_ntransact_rsp *)iov[0].iov_base;
2590 cERROR(1,("smb %p parm %p data %p",pSMBr,parm,psec_desc)); /* BB removeme BB */
2592 if (le32_to_cpu(pSMBr->ParameterCount) != 4) {
2593 rc = -EIO; /* bad smb */
2597 /* BB check that data area is minimum length and as big as acl_len */
2599 acl_len = le32_to_cpu(*(__le32 *)parm);
2600 /* BB check if(acl_len > bufsize) */
2602 parse_sec_desc(psec_desc, acl_len);
2605 if(buf_type == CIFS_SMALL_BUFFER)
2606 cifs_small_buf_release(iov[0].iov_base);
2607 else if(buf_type == CIFS_LARGE_BUFFER)
2608 cifs_buf_release(iov[0].iov_base);
2609 /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */
2614 /* Legacy Query Path Information call for lookup to old servers such
2616 int SMBQueryInformation(const int xid, struct cifsTconInfo *tcon,
2617 const unsigned char *searchName,
2618 FILE_ALL_INFO * pFinfo,
2619 const struct nls_table *nls_codepage, int remap)
2621 QUERY_INFORMATION_REQ * pSMB;
2622 QUERY_INFORMATION_RSP * pSMBr;
2627 cFYI(1, ("In SMBQPath path %s", searchName));
2629 rc = smb_init(SMB_COM_QUERY_INFORMATION, 0, tcon, (void **) &pSMB,
2634 if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
2636 cifsConvertToUCS((__le16 *) pSMB->FileName, searchName,
2637 PATH_MAX, nls_codepage, remap);
2638 name_len++; /* trailing null */
2641 name_len = strnlen(searchName, PATH_MAX);
2642 name_len++; /* trailing null */
2643 strncpy(pSMB->FileName, searchName, name_len);
2645 pSMB->BufferFormat = 0x04;
2646 name_len++; /* account for buffer type byte */
2647 pSMB->hdr.smb_buf_length += (__u16) name_len;
2648 pSMB->ByteCount = cpu_to_le16(name_len);
2650 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
2651 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
2653 cFYI(1, ("Send error in QueryInfo = %d", rc));
2654 } else if (pFinfo) { /* decode response */
2655 memset(pFinfo, 0, sizeof(FILE_ALL_INFO));
2656 pFinfo->AllocationSize =
2657 cpu_to_le64(le32_to_cpu(pSMBr->size));
2658 pFinfo->EndOfFile = pFinfo->AllocationSize;
2659 pFinfo->Attributes =
2660 cpu_to_le32(le16_to_cpu(pSMBr->attr));
2662 rc = -EIO; /* bad buffer passed in */
2664 cifs_buf_release(pSMB);
2676 CIFSSMBQPathInfo(const int xid, struct cifsTconInfo *tcon,
2677 const unsigned char *searchName,
2678 FILE_ALL_INFO * pFindData,
2679 const struct nls_table *nls_codepage, int remap)
2681 /* level 263 SMB_QUERY_FILE_ALL_INFO */
2682 TRANSACTION2_QPI_REQ *pSMB = NULL;
2683 TRANSACTION2_QPI_RSP *pSMBr = NULL;
2687 __u16 params, byte_count;
2689 /* cFYI(1, ("In QPathInfo path %s", searchName)); */
2691 rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
2696 if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
2698 cifsConvertToUCS((__le16 *) pSMB->FileName, searchName,
2699 PATH_MAX, nls_codepage, remap);
2700 name_len++; /* trailing null */
2702 } else { /* BB improve the check for buffer overruns BB */
2703 name_len = strnlen(searchName, PATH_MAX);
2704 name_len++; /* trailing null */
2705 strncpy(pSMB->FileName, searchName, name_len);
2708 params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */ ;
2709 pSMB->TotalDataCount = 0;
2710 pSMB->MaxParameterCount = cpu_to_le16(2);
2711 pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */
2712 pSMB->MaxSetupCount = 0;
2716 pSMB->Reserved2 = 0;
2717 pSMB->ParameterOffset = cpu_to_le16(offsetof(
2718 struct smb_com_transaction2_qpi_req ,InformationLevel) - 4);
2719 pSMB->DataCount = 0;
2720 pSMB->DataOffset = 0;
2721 pSMB->SetupCount = 1;
2722 pSMB->Reserved3 = 0;
2723 pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION);
2724 byte_count = params + 1 /* pad */ ;
2725 pSMB->TotalParameterCount = cpu_to_le16(params);
2726 pSMB->ParameterCount = pSMB->TotalParameterCount;
2727 pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_ALL_INFO);
2728 pSMB->Reserved4 = 0;
2729 pSMB->hdr.smb_buf_length += byte_count;
2730 pSMB->ByteCount = cpu_to_le16(byte_count);
2732 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
2733 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
2735 cFYI(1, ("Send error in QPathInfo = %d", rc));
2736 } else { /* decode response */
2737 rc = validate_t2((struct smb_t2_rsp *)pSMBr);
2739 if (rc || (pSMBr->ByteCount < 40))
2740 rc = -EIO; /* bad smb */
2741 else if (pFindData){
2742 __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
2743 memcpy((char *) pFindData,
2744 (char *) &pSMBr->hdr.Protocol +
2745 data_offset, sizeof (FILE_ALL_INFO));
2749 cifs_buf_release(pSMB);
2751 goto QPathInfoRetry;
2757 CIFSSMBUnixQPathInfo(const int xid, struct cifsTconInfo *tcon,
2758 const unsigned char *searchName,
2759 FILE_UNIX_BASIC_INFO * pFindData,
2760 const struct nls_table *nls_codepage, int remap)
2762 /* SMB_QUERY_FILE_UNIX_BASIC */
2763 TRANSACTION2_QPI_REQ *pSMB = NULL;
2764 TRANSACTION2_QPI_RSP *pSMBr = NULL;
2766 int bytes_returned = 0;
2768 __u16 params, byte_count;
2770 cFYI(1, ("In QPathInfo (Unix) the path %s", searchName));
2772 rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
2777 if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
2779 cifsConvertToUCS((__le16 *) pSMB->FileName, searchName,
2780 PATH_MAX, nls_codepage, remap);
2781 name_len++; /* trailing null */
2783 } else { /* BB improve the check for buffer overruns BB */
2784 name_len = strnlen(searchName, PATH_MAX);
2785 name_len++; /* trailing null */
2786 strncpy(pSMB->FileName, searchName, name_len);
2789 params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */ ;
2790 pSMB->TotalDataCount = 0;
2791 pSMB->MaxParameterCount = cpu_to_le16(2);
2792 /* BB find exact max SMB PDU from sess structure BB */
2793 pSMB->MaxDataCount = cpu_to_le16(4000);
2794 pSMB->MaxSetupCount = 0;
2798 pSMB->Reserved2 = 0;
2799 pSMB->ParameterOffset = cpu_to_le16(offsetof(
2800 struct smb_com_transaction2_qpi_req ,InformationLevel) - 4);
2801 pSMB->DataCount = 0;
2802 pSMB->DataOffset = 0;
2803 pSMB->SetupCount = 1;
2804 pSMB->Reserved3 = 0;
2805 pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION);
2806 byte_count = params + 1 /* pad */ ;
2807 pSMB->TotalParameterCount = cpu_to_le16(params);
2808 pSMB->ParameterCount = pSMB->TotalParameterCount;
2809 pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_UNIX_BASIC);
2810 pSMB->Reserved4 = 0;
2811 pSMB->hdr.smb_buf_length += byte_count;
2812 pSMB->ByteCount = cpu_to_le16(byte_count);
2814 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
2815 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
2817 cFYI(1, ("Send error in QPathInfo = %d", rc));
2818 } else { /* decode response */
2819 rc = validate_t2((struct smb_t2_rsp *)pSMBr);
2821 if (rc || (pSMBr->ByteCount < sizeof(FILE_UNIX_BASIC_INFO))) {
2822 rc = -EIO; /* bad smb */
2824 __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
2825 memcpy((char *) pFindData,
2826 (char *) &pSMBr->hdr.Protocol +
2828 sizeof (FILE_UNIX_BASIC_INFO));
2831 cifs_buf_release(pSMB);
2833 goto UnixQPathInfoRetry;
2838 #if 0 /* function unused at present */
2839 int CIFSFindSingle(const int xid, struct cifsTconInfo *tcon,
2840 const char *searchName, FILE_ALL_INFO * findData,
2841 const struct nls_table *nls_codepage)
2843 /* level 257 SMB_ */
2844 TRANSACTION2_FFIRST_REQ *pSMB = NULL;
2845 TRANSACTION2_FFIRST_RSP *pSMBr = NULL;
2849 __u16 params, byte_count;
2851 cFYI(1, ("In FindUnique"));
2853 rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
2858 if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
2860 cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, PATH_MAX
2861 /* find define for this maxpathcomponent */
2863 name_len++; /* trailing null */
2865 } else { /* BB improve the check for buffer overruns BB */
2866 name_len = strnlen(searchName, PATH_MAX);
2867 name_len++; /* trailing null */
2868 strncpy(pSMB->FileName, searchName, name_len);
2871 params = 12 + name_len /* includes null */ ;
2872 pSMB->TotalDataCount = 0; /* no EAs */
2873 pSMB->MaxParameterCount = cpu_to_le16(2);
2874 pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */
2875 pSMB->MaxSetupCount = 0;
2879 pSMB->Reserved2 = 0;
2880 pSMB->ParameterOffset = cpu_to_le16(
2881 offsetof(struct smb_com_transaction2_ffirst_req,InformationLevel) - 4);
2882 pSMB->DataCount = 0;
2883 pSMB->DataOffset = 0;
2884 pSMB->SetupCount = 1; /* one byte, no need to le convert */
2885 pSMB->Reserved3 = 0;
2886 pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_FIRST);
2887 byte_count = params + 1 /* pad */ ;
2888 pSMB->TotalParameterCount = cpu_to_le16(params);
2889 pSMB->ParameterCount = pSMB->TotalParameterCount;
2890 pSMB->SearchAttributes =
2891 cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM |
2893 pSMB->SearchCount = cpu_to_le16(16); /* BB increase */
2894 pSMB->SearchFlags = cpu_to_le16(1);
2895 pSMB->InformationLevel = cpu_to_le16(SMB_FIND_FILE_DIRECTORY_INFO);
2896 pSMB->SearchStorageType = 0; /* BB what should we set this to? BB */
2897 pSMB->hdr.smb_buf_length += byte_count;
2898 pSMB->ByteCount = cpu_to_le16(byte_count);
2900 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
2901 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
2904 cFYI(1, ("Send error in FindFileDirInfo = %d", rc));
2905 } else { /* decode response */
2906 cifs_stats_inc(&tcon->num_ffirst);
2910 cifs_buf_release(pSMB);
2912 goto findUniqueRetry;
2916 #endif /* end unused (temporarily) function */
2918 /* xid, tcon, searchName and codepage are input parms, rest are returned */
2920 CIFSFindFirst(const int xid, struct cifsTconInfo *tcon,
2921 const char *searchName,
2922 const struct nls_table *nls_codepage,
2924 struct cifs_search_info * psrch_inf, int remap, const char dirsep)
2926 /* level 257 SMB_ */
2927 TRANSACTION2_FFIRST_REQ *pSMB = NULL;
2928 TRANSACTION2_FFIRST_RSP *pSMBr = NULL;
2929 T2_FFIRST_RSP_PARMS * parms;
2931 int bytes_returned = 0;
2933 __u16 params, byte_count;
2935 cFYI(1, ("In FindFirst for %s",searchName));
2938 rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
2943 if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
2945 cifsConvertToUCS((__le16 *) pSMB->FileName,searchName,
2946 PATH_MAX, nls_codepage, remap);
2947 /* We can not add the asterik earlier in case
2948 it got remapped to 0xF03A as if it were part of the
2949 directory name instead of a wildcard */
2951 pSMB->FileName[name_len] = dirsep;
2952 pSMB->FileName[name_len+1] = 0;
2953 pSMB->FileName[name_len+2] = '*';
2954 pSMB->FileName[name_len+3] = 0;
2955 name_len += 4; /* now the trailing null */
2956 pSMB->FileName[name_len] = 0; /* null terminate just in case */
2957 pSMB->FileName[name_len+1] = 0;
2959 } else { /* BB add check for overrun of SMB buf BB */
2960 name_len = strnlen(searchName, PATH_MAX);
2961 /* BB fix here and in unicode clause above ie
2962 if(name_len > buffersize-header)
2963 free buffer exit; BB */
2964 strncpy(pSMB->FileName, searchName, name_len);
2965 pSMB->FileName[name_len] = dirsep;
2966 pSMB->FileName[name_len+1] = '*';
2967 pSMB->FileName[name_len+2] = 0;
2971 params = 12 + name_len /* includes null */ ;
2972 pSMB->TotalDataCount = 0; /* no EAs */
2973 pSMB->MaxParameterCount = cpu_to_le16(10);
2974 pSMB->MaxDataCount = cpu_to_le16((tcon->ses->server->maxBuf -
2975 MAX_CIFS_HDR_SIZE) & 0xFFFFFF00);
2976 pSMB->MaxSetupCount = 0;
2980 pSMB->Reserved2 = 0;
2981 byte_count = params + 1 /* pad */ ;
2982 pSMB->TotalParameterCount = cpu_to_le16(params);
2983 pSMB->ParameterCount = pSMB->TotalParameterCount;
2984 pSMB->ParameterOffset = cpu_to_le16(
2985 offsetof(struct smb_com_transaction2_ffirst_req, SearchAttributes) - 4);
2986 pSMB->DataCount = 0;
2987 pSMB->DataOffset = 0;
2988 pSMB->SetupCount = 1; /* one byte, no need to make endian neutral */
2989 pSMB->Reserved3 = 0;
2990 pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_FIRST);
2991 pSMB->SearchAttributes =
2992 cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM |
2994 pSMB->SearchCount= cpu_to_le16(CIFSMaxBufSize/sizeof(FILE_UNIX_INFO));
2995 pSMB->SearchFlags = cpu_to_le16(CIFS_SEARCH_CLOSE_AT_END |
2996 CIFS_SEARCH_RETURN_RESUME);
2997 pSMB->InformationLevel = cpu_to_le16(psrch_inf->info_level);
2999 /* BB what should we set StorageType to? Does it matter? BB */
3000 pSMB->SearchStorageType = 0;
3001 pSMB->hdr.smb_buf_length += byte_count;
3002 pSMB->ByteCount = cpu_to_le16(byte_count);
3004 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
3005 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
3006 cifs_stats_inc(&tcon->num_ffirst);
3008 if (rc) {/* BB add logic to retry regular search if Unix search rejected unexpectedly by server */
3009 /* BB Add code to handle unsupported level rc */
3010 cFYI(1, ("Error in FindFirst = %d", rc));
3013 cifs_buf_release(pSMB);
3015 /* BB eventually could optimize out free and realloc of buf */
3018 goto findFirstRetry;
3019 } else { /* decode response */
3020 /* BB remember to free buffer if error BB */
3021 rc = validate_t2((struct smb_t2_rsp *)pSMBr);
3023 if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE)
3024 psrch_inf->unicode = TRUE;
3026 psrch_inf->unicode = FALSE;
3028 psrch_inf->ntwrk_buf_start = (char *)pSMBr;
3029 psrch_inf->srch_entries_start =
3030 (char *) &pSMBr->hdr.Protocol +
3031 le16_to_cpu(pSMBr->t2.DataOffset);
3032 parms = (T2_FFIRST_RSP_PARMS *)((char *) &pSMBr->hdr.Protocol +
3033 le16_to_cpu(pSMBr->t2.ParameterOffset));
3035 if(parms->EndofSearch)
3036 psrch_inf->endOfSearch = TRUE;
3038 psrch_inf->endOfSearch = FALSE;
3040 psrch_inf->entries_in_buffer = le16_to_cpu(parms->SearchCount);
3041 psrch_inf->index_of_last_entry =
3042 psrch_inf->entries_in_buffer;
3043 *pnetfid = parms->SearchHandle;
3045 cifs_buf_release(pSMB);
3052 int CIFSFindNext(const int xid, struct cifsTconInfo *tcon,
3053 __u16 searchHandle, struct cifs_search_info * psrch_inf)
3055 TRANSACTION2_FNEXT_REQ *pSMB = NULL;
3056 TRANSACTION2_FNEXT_RSP *pSMBr = NULL;
3057 T2_FNEXT_RSP_PARMS * parms;
3058 char *response_data;
3060 int bytes_returned, name_len;
3061 __u16 params, byte_count;
3063 cFYI(1, ("In FindNext"));
3065 if(psrch_inf->endOfSearch == TRUE)
3068 rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
3073 params = 14; /* includes 2 bytes of null string, converted to LE below */
3075 pSMB->TotalDataCount = 0; /* no EAs */
3076 pSMB->MaxParameterCount = cpu_to_le16(8);
3077 pSMB->MaxDataCount =
3078 cpu_to_le16((tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) & 0xFFFFFF00);
3079 pSMB->MaxSetupCount = 0;
3083 pSMB->Reserved2 = 0;
3084 pSMB->ParameterOffset = cpu_to_le16(
3085 offsetof(struct smb_com_transaction2_fnext_req,SearchHandle) - 4);
3086 pSMB->DataCount = 0;
3087 pSMB->DataOffset = 0;
3088 pSMB->SetupCount = 1;
3089 pSMB->Reserved3 = 0;
3090 pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_NEXT);
3091 pSMB->SearchHandle = searchHandle; /* always kept as le */
3093 cpu_to_le16(CIFSMaxBufSize / sizeof (FILE_UNIX_INFO));
3094 /* test for Unix extensions */
3095 /* if (tcon->ses->capabilities & CAP_UNIX) {
3096 pSMB->InformationLevel = cpu_to_le16(SMB_FIND_FILE_UNIX);
3097 psrch_inf->info_level = SMB_FIND_FILE_UNIX;
3099 pSMB->InformationLevel =
3100 cpu_to_le16(SMB_FIND_FILE_DIRECTORY_INFO);
3101 psrch_inf->info_level = SMB_FIND_FILE_DIRECTORY_INFO;
3103 pSMB->InformationLevel = cpu_to_le16(psrch_inf->info_level);
3104 pSMB->ResumeKey = psrch_inf->resume_key;
3106 cpu_to_le16(CIFS_SEARCH_CLOSE_AT_END | CIFS_SEARCH_RETURN_RESUME);
3108 name_len = psrch_inf->resume_name_len;
3110 if(name_len < PATH_MAX) {
3111 memcpy(pSMB->ResumeFileName, psrch_inf->presume_name, name_len);
3112 byte_count += name_len;
3113 /* 14 byte parm len above enough for 2 byte null terminator */
3114 pSMB->ResumeFileName[name_len] = 0;
3115 pSMB->ResumeFileName[name_len+1] = 0;
3118 goto FNext2_err_exit;
3120 byte_count = params + 1 /* pad */ ;
3121 pSMB->TotalParameterCount = cpu_to_le16(params);
3122 pSMB->ParameterCount = pSMB->TotalParameterCount;
3123 pSMB->hdr.smb_buf_length += byte_count;
3124 pSMB->ByteCount = cpu_to_le16(byte_count);
3126 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
3127 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
3128 cifs_stats_inc(&tcon->num_fnext);
3131 psrch_inf->endOfSearch = TRUE;
3132 rc = 0; /* search probably was closed at end of search above */
3134 cFYI(1, ("FindNext returned = %d", rc));
3135 } else { /* decode response */
3136 rc = validate_t2((struct smb_t2_rsp *)pSMBr);
3139 /* BB fixme add lock for file (srch_info) struct here */
3140 if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE)
3141 psrch_inf->unicode = TRUE;
3143 psrch_inf->unicode = FALSE;
3144 response_data = (char *) &pSMBr->hdr.Protocol +
3145 le16_to_cpu(pSMBr->t2.ParameterOffset);
3146 parms = (T2_FNEXT_RSP_PARMS *)response_data;
3147 response_data = (char *)&pSMBr->hdr.Protocol +
3148 le16_to_cpu(pSMBr->t2.DataOffset);
3149 cifs_buf_release(psrch_inf->ntwrk_buf_start);
3150 psrch_inf->srch_entries_start = response_data;
3151 psrch_inf->ntwrk_buf_start = (char *)pSMB;
3152 if(parms->EndofSearch)
3153 psrch_inf->endOfSearch = TRUE;
3155 psrch_inf->endOfSearch = FALSE;
3157 psrch_inf->entries_in_buffer = le16_to_cpu(parms->SearchCount);
3158 psrch_inf->index_of_last_entry +=
3159 psrch_inf->entries_in_buffer;
3160 /* cFYI(1,("fnxt2 entries in buf %d index_of_last %d",psrch_inf->entries_in_buffer,psrch_inf->index_of_last_entry)); */
3162 /* BB fixme add unlock here */
3167 /* BB On error, should we leave previous search buf (and count and
3168 last entry fields) intact or free the previous one? */
3170 /* Note: On -EAGAIN error only caller can retry on handle based calls
3171 since file handle passed in no longer valid */
3174 cifs_buf_release(pSMB);
3180 CIFSFindClose(const int xid, struct cifsTconInfo *tcon, const __u16 searchHandle)
3183 FINDCLOSE_REQ *pSMB = NULL;
3184 CLOSE_RSP *pSMBr = NULL; /* BB removeme BB */
3187 cFYI(1, ("In CIFSSMBFindClose"));
3188 rc = small_smb_init(SMB_COM_FIND_CLOSE2, 1, tcon, (void **)&pSMB);
3190 /* no sense returning error if session restarted
3191 as file handle has been closed */
3197 pSMBr = (CLOSE_RSP *)pSMB; /* BB removeme BB */
3198 pSMB->FileID = searchHandle;
3199 pSMB->ByteCount = 0;
3200 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
3201 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
3203 cERROR(1, ("Send error in FindClose = %d", rc));
3205 cifs_stats_inc(&tcon->num_fclose);
3206 cifs_small_buf_release(pSMB);
3208 /* Since session is dead, search handle closed on server already */
3216 CIFSGetSrvInodeNumber(const int xid, struct cifsTconInfo *tcon,
3217 const unsigned char *searchName,
3218 __u64 * inode_number,
3219 const struct nls_table *nls_codepage, int remap)
3222 TRANSACTION2_QPI_REQ *pSMB = NULL;
3223 TRANSACTION2_QPI_RSP *pSMBr = NULL;
3224 int name_len, bytes_returned;
3225 __u16 params, byte_count;
3227 cFYI(1,("In GetSrvInodeNum for %s",searchName));
3231 GetInodeNumberRetry:
3232 rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
3238 if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
3240 cifsConvertToUCS((__le16 *) pSMB->FileName, searchName,
3241 PATH_MAX,nls_codepage, remap);
3242 name_len++; /* trailing null */
3244 } else { /* BB improve the check for buffer overruns BB */
3245 name_len = strnlen(searchName, PATH_MAX);
3246 name_len++; /* trailing null */
3247 strncpy(pSMB->FileName, searchName, name_len);
3250 params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ;
3251 pSMB->TotalDataCount = 0;
3252 pSMB->MaxParameterCount = cpu_to_le16(2);
3253 /* BB find exact max data count below from sess structure BB */
3254 pSMB->MaxDataCount = cpu_to_le16(4000);
3255 pSMB->MaxSetupCount = 0;
3259 pSMB->Reserved2 = 0;
3260 pSMB->ParameterOffset = cpu_to_le16(offsetof(
3261 struct smb_com_transaction2_qpi_req ,InformationLevel) - 4);
3262 pSMB->DataCount = 0;
3263 pSMB->DataOffset = 0;
3264 pSMB->SetupCount = 1;
3265 pSMB->Reserved3 = 0;
3266 pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION);
3267 byte_count = params + 1 /* pad */ ;
3268 pSMB->TotalParameterCount = cpu_to_le16(params);
3269 pSMB->ParameterCount = pSMB->TotalParameterCount;
3270 pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_INTERNAL_INFO);
3271 pSMB->Reserved4 = 0;
3272 pSMB->hdr.smb_buf_length += byte_count;
3273 pSMB->ByteCount = cpu_to_le16(byte_count);
3275 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
3276 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
3278 cFYI(1, ("error %d in QueryInternalInfo", rc));
3280 /* decode response */
3281 rc = validate_t2((struct smb_t2_rsp *)pSMBr);
3282 if (rc || (pSMBr->ByteCount < 2))
3283 /* BB also check enough total bytes returned */
3284 /* If rc should we check for EOPNOSUPP and
3285 disable the srvino flag? or in caller? */
3286 rc = -EIO; /* bad smb */
3288 __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
3289 __u16 count = le16_to_cpu(pSMBr->t2.DataCount);
3290 struct file_internal_info * pfinfo;
3291 /* BB Do we need a cast or hash here ? */
3293 cFYI(1, ("Illegal size ret in QryIntrnlInf"));
3295 goto GetInodeNumOut;
3297 pfinfo = (struct file_internal_info *)
3298 (data_offset + (char *) &pSMBr->hdr.Protocol);
3299 *inode_number = pfinfo->UniqueId;
3303 cifs_buf_release(pSMB);
3305 goto GetInodeNumberRetry;
3310 CIFSGetDFSRefer(const int xid, struct cifsSesInfo *ses,
3311 const unsigned char *searchName,
3312 unsigned char **targetUNCs,
3313 unsigned int *number_of_UNC_in_array,
3314 const struct nls_table *nls_codepage, int remap)
3316 /* TRANS2_GET_DFS_REFERRAL */
3317 TRANSACTION2_GET_DFS_REFER_REQ *pSMB = NULL;
3318 TRANSACTION2_GET_DFS_REFER_RSP *pSMBr = NULL;
3319 struct dfs_referral_level_3 * referrals = NULL;
3325 __u16 params, byte_count;
3326 *number_of_UNC_in_array = 0;
3329 cFYI(1, ("In GetDFSRefer the path %s", searchName));
3333 rc = smb_init(SMB_COM_TRANSACTION2, 15, NULL, (void **) &pSMB,
3338 /* server pointer checked in called function,
3339 but should never be null here anyway */
3340 pSMB->hdr.Mid = GetNextMid(ses->server);
3341 pSMB->hdr.Tid = ses->ipc_tid;
3342 pSMB->hdr.Uid = ses->Suid;
3343 if (ses->capabilities & CAP_STATUS32) {
3344 pSMB->hdr.Flags2 |= SMBFLG2_ERR_STATUS;
3346 if (ses->capabilities & CAP_DFS) {
3347 pSMB->hdr.Flags2 |= SMBFLG2_DFS;
3350 if (ses->capabilities & CAP_UNICODE) {
3351 pSMB->hdr.Flags2 |= SMBFLG2_UNICODE;
3353 cifsConvertToUCS((__le16 *) pSMB->RequestFileName,
3354 searchName, PATH_MAX, nls_codepage, remap);
3355 name_len++; /* trailing null */
3357 } else { /* BB improve the check for buffer overruns BB */
3358 name_len = strnlen(searchName, PATH_MAX);
3359 name_len++; /* trailing null */
3360 strncpy(pSMB->RequestFileName, searchName, name_len);
3363 params = 2 /* level */ + name_len /*includes null */ ;
3364 pSMB->TotalDataCount = 0;
3365 pSMB->DataCount = 0;
3366 pSMB->DataOffset = 0;
3367 pSMB->MaxParameterCount = 0;
3368 pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */
3369 pSMB->MaxSetupCount = 0;
3373 pSMB->Reserved2 = 0;
3374 pSMB->ParameterOffset = cpu_to_le16(offsetof(
3375 struct smb_com_transaction2_get_dfs_refer_req, MaxReferralLevel) - 4);
3376 pSMB->SetupCount = 1;
3377 pSMB->Reserved3 = 0;
3378 pSMB->SubCommand = cpu_to_le16(TRANS2_GET_DFS_REFERRAL);
3379 byte_count = params + 3 /* pad */ ;
3380 pSMB->ParameterCount = cpu_to_le16(params);
3381 pSMB->TotalParameterCount = pSMB->ParameterCount;
3382 pSMB->MaxReferralLevel = cpu_to_le16(3);
3383 pSMB->hdr.smb_buf_length += byte_count;
3384 pSMB->ByteCount = cpu_to_le16(byte_count);
3386 rc = SendReceive(xid, ses, (struct smb_hdr *) pSMB,
3387 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
3389 cFYI(1, ("Send error in GetDFSRefer = %d", rc));
3390 } else { /* decode response */
3391 /* BB Add logic to parse referrals here */
3392 rc = validate_t2((struct smb_t2_rsp *)pSMBr);
3394 if (rc || (pSMBr->ByteCount < 17)) /* BB also check enough total bytes returned */
3395 rc = -EIO; /* bad smb */
3397 __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
3398 __u16 data_count = le16_to_cpu(pSMBr->t2.DataCount);
3401 ("Decoding GetDFSRefer response. BCC: %d Offset %d",
3402 pSMBr->ByteCount, data_offset));
3404 (struct dfs_referral_level_3 *)
3405 (8 /* sizeof start of data block */ +
3407 (char *) &pSMBr->hdr.Protocol);
3408 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",
3409 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)));
3410 /* BB This field is actually two bytes in from start of
3411 data block so we could do safety check that DataBlock
3412 begins at address of pSMBr->NumberOfReferrals */
3413 *number_of_UNC_in_array = le16_to_cpu(pSMBr->NumberOfReferrals);
3415 /* BB Fix below so can return more than one referral */
3416 if(*number_of_UNC_in_array > 1)
3417 *number_of_UNC_in_array = 1;
3419 /* get the length of the strings describing refs */
3421 for(i=0;i<*number_of_UNC_in_array;i++) {
3422 /* make sure that DfsPathOffset not past end */
3423 __u16 offset = le16_to_cpu(referrals->DfsPathOffset);
3424 if (offset > data_count) {
3425 /* if invalid referral, stop here and do
3426 not try to copy any more */
3427 *number_of_UNC_in_array = i;
3430 temp = ((char *)referrals) + offset;
3432 if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) {
3433 name_len += UniStrnlen((wchar_t *)temp,data_count);
3435 name_len += strnlen(temp,data_count);
3438 /* BB add check that referral pointer does not fall off end PDU */
3441 /* BB add check for name_len bigger than bcc */
3443 kmalloc(name_len+1+ (*number_of_UNC_in_array),GFP_KERNEL);
3444 if(*targetUNCs == NULL) {
3448 /* copy the ref strings */
3450 (struct dfs_referral_level_3 *)
3451 (8 /* sizeof data hdr */ +
3453 (char *) &pSMBr->hdr.Protocol);
3455 for(i=0;i<*number_of_UNC_in_array;i++) {
3456 temp = ((char *)referrals) + le16_to_cpu(referrals->DfsPathOffset);
3457 if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) {
3458 cifs_strfromUCS_le(*targetUNCs,
3459 (__le16 *) temp, name_len, nls_codepage);
3461 strncpy(*targetUNCs,temp,name_len);
3463 /* BB update target_uncs pointers */
3473 cifs_buf_release(pSMB);
3481 /* Query File System Info such as free space to old servers such as Win 9x */
3483 SMBOldQFSInfo(const int xid, struct cifsTconInfo *tcon, struct kstatfs *FSData)
3485 /* level 0x01 SMB_QUERY_FILE_SYSTEM_INFO */
3486 TRANSACTION2_QFSI_REQ *pSMB = NULL;
3487 TRANSACTION2_QFSI_RSP *pSMBr = NULL;
3488 FILE_SYSTEM_ALLOC_INFO *response_data;
3490 int bytes_returned = 0;
3491 __u16 params, byte_count;
3493 cFYI(1, ("OldQFSInfo"));
3495 rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
3499 rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
3504 params = 2; /* level */
3505 pSMB->TotalDataCount = 0;
3506 pSMB->MaxParameterCount = cpu_to_le16(2);
3507 pSMB->MaxDataCount = cpu_to_le16(1000);
3508 pSMB->MaxSetupCount = 0;
3512 pSMB->Reserved2 = 0;
3513 byte_count = params + 1 /* pad */ ;
3514 pSMB->TotalParameterCount = cpu_to_le16(params);
3515 pSMB->ParameterCount = pSMB->TotalParameterCount;
3516 pSMB->ParameterOffset = cpu_to_le16(offsetof(
3517 struct smb_com_transaction2_qfsi_req, InformationLevel) - 4);
3518 pSMB->DataCount = 0;
3519 pSMB->DataOffset = 0;
3520 pSMB->SetupCount = 1;
3521 pSMB->Reserved3 = 0;
3522 pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION);
3523 pSMB->InformationLevel = cpu_to_le16(SMB_INFO_ALLOCATION);
3524 pSMB->hdr.smb_buf_length += byte_count;
3525 pSMB->ByteCount = cpu_to_le16(byte_count);
3527 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
3528 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
3530 cFYI(1, ("Send error in QFSInfo = %d", rc));
3531 } else { /* decode response */
3532 rc = validate_t2((struct smb_t2_rsp *)pSMBr);
3534 if (rc || (pSMBr->ByteCount < 18))
3535 rc = -EIO; /* bad smb */
3537 __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
3538 cFYI(1,("qfsinf resp BCC: %d Offset %d",
3539 pSMBr->ByteCount, data_offset));
3542 (FILE_SYSTEM_ALLOC_INFO *)
3543 (((char *) &pSMBr->hdr.Protocol) + data_offset);
3545 le16_to_cpu(response_data->BytesPerSector) *
3546 le32_to_cpu(response_data->
3547 SectorsPerAllocationUnit);
3549 le32_to_cpu(response_data->TotalAllocationUnits);
3550 FSData->f_bfree = FSData->f_bavail =
3551 le32_to_cpu(response_data->FreeAllocationUnits);
3553 ("Blocks: %lld Free: %lld Block size %ld",
3554 (unsigned long long)FSData->f_blocks,
3555 (unsigned long long)FSData->f_bfree,
3559 cifs_buf_release(pSMB);
3562 goto oldQFSInfoRetry;
3568 CIFSSMBQFSInfo(const int xid, struct cifsTconInfo *tcon, struct kstatfs *FSData)
3570 /* level 0x103 SMB_QUERY_FILE_SYSTEM_INFO */
3571 TRANSACTION2_QFSI_REQ *pSMB = NULL;
3572 TRANSACTION2_QFSI_RSP *pSMBr = NULL;
3573 FILE_SYSTEM_INFO *response_data;
3575 int bytes_returned = 0;
3576 __u16 params, byte_count;
3578 cFYI(1, ("In QFSInfo"));
3580 rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
3585 params = 2; /* level */
3586 pSMB->TotalDataCount = 0;
3587 pSMB->MaxParameterCount = cpu_to_le16(2);
3588 pSMB->MaxDataCount = cpu_to_le16(1000);
3589 pSMB->MaxSetupCount = 0;
3593 pSMB->Reserved2 = 0;
3594 byte_count = params + 1 /* pad */ ;
3595 pSMB->TotalParameterCount = cpu_to_le16(params);
3596 pSMB->ParameterCount = pSMB->TotalParameterCount;
3597 pSMB->ParameterOffset = cpu_to_le16(offsetof(
3598 struct smb_com_transaction2_qfsi_req, InformationLevel) - 4);
3599 pSMB->DataCount = 0;
3600 pSMB->DataOffset = 0;
3601 pSMB->SetupCount = 1;
3602 pSMB->Reserved3 = 0;
3603 pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION);
3604 pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_SIZE_INFO);
3605 pSMB->hdr.smb_buf_length += byte_count;
3606 pSMB->ByteCount = cpu_to_le16(byte_count);
3608 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
3609 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
3611 cFYI(1, ("Send error in QFSInfo = %d", rc));
3612 } else { /* decode response */
3613 rc = validate_t2((struct smb_t2_rsp *)pSMBr);
3615 if (rc || (pSMBr->ByteCount < 24))
3616 rc = -EIO; /* bad smb */
3618 __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
3622 *) (((char *) &pSMBr->hdr.Protocol) +
3625 le32_to_cpu(response_data->BytesPerSector) *
3626 le32_to_cpu(response_data->
3627 SectorsPerAllocationUnit);
3629 le64_to_cpu(response_data->TotalAllocationUnits);
3630 FSData->f_bfree = FSData->f_bavail =
3631 le64_to_cpu(response_data->FreeAllocationUnits);
3633 ("Blocks: %lld Free: %lld Block size %ld",
3634 (unsigned long long)FSData->f_blocks,
3635 (unsigned long long)FSData->f_bfree,
3639 cifs_buf_release(pSMB);
3648 CIFSSMBQFSAttributeInfo(const int xid, struct cifsTconInfo *tcon)
3650 /* level 0x105 SMB_QUERY_FILE_SYSTEM_INFO */
3651 TRANSACTION2_QFSI_REQ *pSMB = NULL;
3652 TRANSACTION2_QFSI_RSP *pSMBr = NULL;
3653 FILE_SYSTEM_ATTRIBUTE_INFO *response_data;
3655 int bytes_returned = 0;
3656 __u16 params, byte_count;
3658 cFYI(1, ("In QFSAttributeInfo"));
3660 rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
3665 params = 2; /* level */
3666 pSMB->TotalDataCount = 0;
3667 pSMB->MaxParameterCount = cpu_to_le16(2);
3668 pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find exact max SMB PDU from sess structure BB */
3669 pSMB->MaxSetupCount = 0;
3673 pSMB->Reserved2 = 0;
3674 byte_count = params + 1 /* pad */ ;
3675 pSMB->TotalParameterCount = cpu_to_le16(params);
3676 pSMB->ParameterCount = pSMB->TotalParameterCount;
3677 pSMB->ParameterOffset = cpu_to_le16(offsetof(
3678 struct smb_com_transaction2_qfsi_req, InformationLevel) - 4);
3679 pSMB->DataCount = 0;
3680 pSMB->DataOffset = 0;
3681 pSMB->SetupCount = 1;
3682 pSMB->Reserved3 = 0;
3683 pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION);
3684 pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_ATTRIBUTE_INFO);
3685 pSMB->hdr.smb_buf_length += byte_count;
3686 pSMB->ByteCount = cpu_to_le16(byte_count);
3688 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
3689 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
3691 cERROR(1, ("Send error in QFSAttributeInfo = %d", rc));
3692 } else { /* decode response */
3693 rc = validate_t2((struct smb_t2_rsp *)pSMBr);
3695 if (rc || (pSMBr->ByteCount < 13)) { /* BB also check enough bytes returned */
3696 rc = -EIO; /* bad smb */
3698 __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
3700 (FILE_SYSTEM_ATTRIBUTE_INFO
3701 *) (((char *) &pSMBr->hdr.Protocol) +
3703 memcpy(&tcon->fsAttrInfo, response_data,
3704 sizeof (FILE_SYSTEM_ATTRIBUTE_INFO));
3707 cifs_buf_release(pSMB);
3710 goto QFSAttributeRetry;
3716 CIFSSMBQFSDeviceInfo(const int xid, struct cifsTconInfo *tcon)
3718 /* level 0x104 SMB_QUERY_FILE_SYSTEM_INFO */
3719 TRANSACTION2_QFSI_REQ *pSMB = NULL;
3720 TRANSACTION2_QFSI_RSP *pSMBr = NULL;
3721 FILE_SYSTEM_DEVICE_INFO *response_data;
3723 int bytes_returned = 0;
3724 __u16 params, byte_count;
3726 cFYI(1, ("In QFSDeviceInfo"));
3728 rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
3733 params = 2; /* level */
3734 pSMB->TotalDataCount = 0;
3735 pSMB->MaxParameterCount = cpu_to_le16(2);
3736 pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find exact max SMB PDU from sess structure BB */
3737 pSMB->MaxSetupCount = 0;
3741 pSMB->Reserved2 = 0;
3742 byte_count = params + 1 /* pad */ ;
3743 pSMB->TotalParameterCount = cpu_to_le16(params);
3744 pSMB->ParameterCount = pSMB->TotalParameterCount;
3745 pSMB->ParameterOffset = cpu_to_le16(offsetof(
3746 struct smb_com_transaction2_qfsi_req, InformationLevel) - 4);
3748 pSMB->DataCount = 0;
3749 pSMB->DataOffset = 0;
3750 pSMB->SetupCount = 1;
3751 pSMB->Reserved3 = 0;
3752 pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION);
3753 pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_DEVICE_INFO);
3754 pSMB->hdr.smb_buf_length += byte_count;
3755 pSMB->ByteCount = cpu_to_le16(byte_count);
3757 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
3758 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
3760 cFYI(1, ("Send error in QFSDeviceInfo = %d", rc));
3761 } else { /* decode response */
3762 rc = validate_t2((struct smb_t2_rsp *)pSMBr);
3764 if (rc || (pSMBr->ByteCount < sizeof (FILE_SYSTEM_DEVICE_INFO)))
3765 rc = -EIO; /* bad smb */
3767 __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
3769 (FILE_SYSTEM_DEVICE_INFO *)
3770 (((char *) &pSMBr->hdr.Protocol) +
3772 memcpy(&tcon->fsDevInfo, response_data,
3773 sizeof (FILE_SYSTEM_DEVICE_INFO));
3776 cifs_buf_release(pSMB);
3779 goto QFSDeviceRetry;
3785 CIFSSMBQFSUnixInfo(const int xid, struct cifsTconInfo *tcon)
3787 /* level 0x200 SMB_QUERY_CIFS_UNIX_INFO */
3788 TRANSACTION2_QFSI_REQ *pSMB = NULL;
3789 TRANSACTION2_QFSI_RSP *pSMBr = NULL;
3790 FILE_SYSTEM_UNIX_INFO *response_data;
3792 int bytes_returned = 0;
3793 __u16 params, byte_count;
3795 cFYI(1, ("In QFSUnixInfo"));
3797 rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
3802 params = 2; /* level */
3803 pSMB->TotalDataCount = 0;
3804 pSMB->DataCount = 0;
3805 pSMB->DataOffset = 0;
3806 pSMB->MaxParameterCount = cpu_to_le16(2);
3807 pSMB->MaxDataCount = cpu_to_le16(100); /* BB find exact max SMB PDU from sess structure BB */
3808 pSMB->MaxSetupCount = 0;
3812 pSMB->Reserved2 = 0;
3813 byte_count = params + 1 /* pad */ ;
3814 pSMB->ParameterCount = cpu_to_le16(params);
3815 pSMB->TotalParameterCount = pSMB->ParameterCount;
3816 pSMB->ParameterOffset = cpu_to_le16(offsetof(struct
3817 smb_com_transaction2_qfsi_req, InformationLevel) - 4);
3818 pSMB->SetupCount = 1;
3819 pSMB->Reserved3 = 0;
3820 pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION);
3821 pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_CIFS_UNIX_INFO);
3822 pSMB->hdr.smb_buf_length += byte_count;
3823 pSMB->ByteCount = cpu_to_le16(byte_count);
3825 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
3826 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
3828 cERROR(1, ("Send error in QFSUnixInfo = %d", rc));
3829 } else { /* decode response */
3830 rc = validate_t2((struct smb_t2_rsp *)pSMBr);
3832 if (rc || (pSMBr->ByteCount < 13)) {
3833 rc = -EIO; /* bad smb */
3835 __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
3837 (FILE_SYSTEM_UNIX_INFO
3838 *) (((char *) &pSMBr->hdr.Protocol) +
3840 memcpy(&tcon->fsUnixInfo, response_data,
3841 sizeof (FILE_SYSTEM_UNIX_INFO));
3844 cifs_buf_release(pSMB);
3854 CIFSSMBSetFSUnixInfo(const int xid, struct cifsTconInfo *tcon, __u64 cap)
3856 /* level 0x200 SMB_SET_CIFS_UNIX_INFO */
3857 TRANSACTION2_SETFSI_REQ *pSMB = NULL;
3858 TRANSACTION2_SETFSI_RSP *pSMBr = NULL;
3860 int bytes_returned = 0;
3861 __u16 params, param_offset, offset, byte_count;
3863 cFYI(1, ("In SETFSUnixInfo"));
3865 rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
3870 params = 4; /* 2 bytes zero followed by info level. */
3871 pSMB->MaxSetupCount = 0;
3875 pSMB->Reserved2 = 0;
3876 param_offset = offsetof(struct smb_com_transaction2_setfsi_req, FileNum) - 4;
3877 offset = param_offset + params;
3879 pSMB->MaxParameterCount = cpu_to_le16(4);
3880 pSMB->MaxDataCount = cpu_to_le16(100); /* BB find exact max SMB PDU from sess structure BB */
3881 pSMB->SetupCount = 1;
3882 pSMB->Reserved3 = 0;
3883 pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FS_INFORMATION);
3884 byte_count = 1 /* pad */ + params + 12;
3886 pSMB->DataCount = cpu_to_le16(12);
3887 pSMB->ParameterCount = cpu_to_le16(params);
3888 pSMB->TotalDataCount = pSMB->DataCount;
3889 pSMB->TotalParameterCount = pSMB->ParameterCount;
3890 pSMB->ParameterOffset = cpu_to_le16(param_offset);
3891 pSMB->DataOffset = cpu_to_le16(offset);
3895 pSMB->InformationLevel = cpu_to_le16(SMB_SET_CIFS_UNIX_INFO);
3898 pSMB->ClientUnixMajor = cpu_to_le16(CIFS_UNIX_MAJOR_VERSION);
3899 pSMB->ClientUnixMinor = cpu_to_le16(CIFS_UNIX_MINOR_VERSION);
3900 pSMB->ClientUnixCap = cpu_to_le64(cap);
3902 pSMB->hdr.smb_buf_length += byte_count;
3903 pSMB->ByteCount = cpu_to_le16(byte_count);
3905 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
3906 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
3908 cERROR(1, ("Send error in SETFSUnixInfo = %d", rc));
3909 } else { /* decode response */
3910 rc = validate_t2((struct smb_t2_rsp *)pSMBr);
3912 rc = -EIO; /* bad smb */
3915 cifs_buf_release(pSMB);
3918 goto SETFSUnixRetry;
3926 CIFSSMBQFSPosixInfo(const int xid, struct cifsTconInfo *tcon,
3927 struct kstatfs *FSData)
3929 /* level 0x201 SMB_QUERY_CIFS_POSIX_INFO */
3930 TRANSACTION2_QFSI_REQ *pSMB = NULL;
3931 TRANSACTION2_QFSI_RSP *pSMBr = NULL;
3932 FILE_SYSTEM_POSIX_INFO *response_data;
3934 int bytes_returned = 0;
3935 __u16 params, byte_count;
3937 cFYI(1, ("In QFSPosixInfo"));
3939 rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
3944 params = 2; /* level */
3945 pSMB->TotalDataCount = 0;
3946 pSMB->DataCount = 0;
3947 pSMB->DataOffset = 0;
3948 pSMB->MaxParameterCount = cpu_to_le16(2);
3949 pSMB->MaxDataCount = cpu_to_le16(100); /* BB find exact max SMB PDU from sess structure BB */
3950 pSMB->MaxSetupCount = 0;
3954 pSMB->Reserved2 = 0;
3955 byte_count = params + 1 /* pad */ ;
3956 pSMB->ParameterCount = cpu_to_le16(params);
3957 pSMB->TotalParameterCount = pSMB->ParameterCount;
3958 pSMB->ParameterOffset = cpu_to_le16(offsetof(struct
3959 smb_com_transaction2_qfsi_req, InformationLevel) - 4);
3960 pSMB->SetupCount = 1;
3961 pSMB->Reserved3 = 0;
3962 pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION);
3963 pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_POSIX_FS_INFO);
3964 pSMB->hdr.smb_buf_length += byte_count;
3965 pSMB->ByteCount = cpu_to_le16(byte_count);
3967 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
3968 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
3970 cFYI(1, ("Send error in QFSUnixInfo = %d", rc));
3971 } else { /* decode response */
3972 rc = validate_t2((struct smb_t2_rsp *)pSMBr);
3974 if (rc || (pSMBr->ByteCount < 13)) {
3975 rc = -EIO; /* bad smb */
3977 __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
3979 (FILE_SYSTEM_POSIX_INFO
3980 *) (((char *) &pSMBr->hdr.Protocol) +
3983 le32_to_cpu(response_data->BlockSize);
3985 le64_to_cpu(response_data->TotalBlocks);
3987 le64_to_cpu(response_data->BlocksAvail);
3988 if(response_data->UserBlocksAvail == cpu_to_le64(-1)) {
3989 FSData->f_bavail = FSData->f_bfree;
3992 le64_to_cpu(response_data->UserBlocksAvail);
3994 if(response_data->TotalFileNodes != cpu_to_le64(-1))
3996 le64_to_cpu(response_data->TotalFileNodes);
3997 if(response_data->FreeFileNodes != cpu_to_le64(-1))
3999 le64_to_cpu(response_data->FreeFileNodes);
4002 cifs_buf_release(pSMB);
4011 /* We can not use write of zero bytes trick to
4012 set file size due to need for large file support. Also note that
4013 this SetPathInfo is preferred to SetFileInfo based method in next
4014 routine which is only needed to work around a sharing violation bug
4015 in Samba which this routine can run into */
4018 CIFSSMBSetEOF(const int xid, struct cifsTconInfo *tcon, const char *fileName,
4019 __u64 size, int SetAllocation,
4020 const struct nls_table *nls_codepage, int remap)
4022 struct smb_com_transaction2_spi_req *pSMB = NULL;
4023 struct smb_com_transaction2_spi_rsp *pSMBr = NULL;
4024 struct file_end_of_file_info *parm_data;
4027 int bytes_returned = 0;
4028 __u16 params, byte_count, data_count, param_offset, offset;
4030 cFYI(1, ("In SetEOF"));
4032 rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
4037 if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
4039 cifsConvertToUCS((__le16 *) pSMB->FileName, fileName,
4040 PATH_MAX, nls_codepage, remap);
4041 name_len++; /* trailing null */
4043 } else { /* BB improve the check for buffer overruns BB */
4044 name_len = strnlen(fileName, PATH_MAX);
4045 name_len++; /* trailing null */
4046 strncpy(pSMB->FileName, fileName, name_len);
4048 params = 6 + name_len;
4049 data_count = sizeof (struct file_end_of_file_info);
4050 pSMB->MaxParameterCount = cpu_to_le16(2);
4051 pSMB->MaxDataCount = cpu_to_le16(4100);
4052 pSMB->MaxSetupCount = 0;
4056 pSMB->Reserved2 = 0;
4057 param_offset = offsetof(struct smb_com_transaction2_spi_req,
4058 InformationLevel) - 4;
4059 offset = param_offset + params;
4061 if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU)
4062 pSMB->InformationLevel =
4063 cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO2);
4065 pSMB->InformationLevel =
4066 cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO);
4067 } else /* Set File Size */ {
4068 if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU)
4069 pSMB->InformationLevel =
4070 cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO2);
4072 pSMB->InformationLevel =
4073 cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO);
4077 (struct file_end_of_file_info *) (((char *) &pSMB->hdr.Protocol) +
4079 pSMB->ParameterOffset = cpu_to_le16(param_offset);
4080 pSMB->DataOffset = cpu_to_le16(offset);
4081 pSMB->SetupCount = 1;
4082 pSMB->Reserved3 = 0;
4083 pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION);
4084 byte_count = 3 /* pad */ + params + data_count;
4085 pSMB->DataCount = cpu_to_le16(data_count);
4086 pSMB->TotalDataCount = pSMB->DataCount;
4087 pSMB->ParameterCount = cpu_to_le16(params);
4088 pSMB->TotalParameterCount = pSMB->ParameterCount;
4089 pSMB->Reserved4 = 0;
4090 pSMB->hdr.smb_buf_length += byte_count;
4091 parm_data->FileSize = cpu_to_le64(size);
4092 pSMB->ByteCount = cpu_to_le16(byte_count);
4093 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
4094 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
4096 cFYI(1, ("SetPathInfo (file size) returned %d", rc));
4099 cifs_buf_release(pSMB);
4108 CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon, __u64 size,
4109 __u16 fid, __u32 pid_of_opener, int SetAllocation)
4111 struct smb_com_transaction2_sfi_req *pSMB = NULL;
4112 struct smb_com_transaction2_sfi_rsp *pSMBr = NULL;
4114 struct file_end_of_file_info *parm_data;
4116 int bytes_returned = 0;
4117 __u16 params, param_offset, offset, byte_count, count;
4119 cFYI(1, ("SetFileSize (via SetFileInfo) %lld",
4121 rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB);
4126 pSMBr = (struct smb_com_transaction2_sfi_rsp *)pSMB;
4128 pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener);
4129 pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16));
4132 pSMB->MaxSetupCount = 0;
4136 pSMB->Reserved2 = 0;
4137 param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4;
4138 offset = param_offset + params;
4140 data_offset = (char *) (&pSMB->hdr.Protocol) + offset;
4142 count = sizeof(struct file_end_of_file_info);
4143 pSMB->MaxParameterCount = cpu_to_le16(2);
4144 pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB PDU from sess */
4145 pSMB->SetupCount = 1;
4146 pSMB->Reserved3 = 0;
4147 pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION);
4148 byte_count = 3 /* pad */ + params + count;
4149 pSMB->DataCount = cpu_to_le16(count);
4150 pSMB->ParameterCount = cpu_to_le16(params);
4151 pSMB->TotalDataCount = pSMB->DataCount;
4152 pSMB->TotalParameterCount = pSMB->ParameterCount;
4153 pSMB->ParameterOffset = cpu_to_le16(param_offset);
4155 (struct file_end_of_file_info *) (((char *) &pSMB->hdr.Protocol) +
4157 pSMB->DataOffset = cpu_to_le16(offset);
4158 parm_data->FileSize = cpu_to_le64(size);
4161 if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU)
4162 pSMB->InformationLevel =
4163 cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO2);
4165 pSMB->InformationLevel =
4166 cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO);
4167 } else /* Set File Size */ {
4168 if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU)
4169 pSMB->InformationLevel =
4170 cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO2);
4172 pSMB->InformationLevel =
4173 cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO);
4175 pSMB->Reserved4 = 0;
4176 pSMB->hdr.smb_buf_length += byte_count;
4177 pSMB->ByteCount = cpu_to_le16(byte_count);
4178 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
4179 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
4182 ("Send error in SetFileInfo (SetFileSize) = %d",
4187 cifs_small_buf_release(pSMB);
4189 /* Note: On -EAGAIN error only caller can retry on handle based calls
4190 since file handle passed in no longer valid */
4195 /* Some legacy servers such as NT4 require that the file times be set on
4196 an open handle, rather than by pathname - this is awkward due to
4197 potential access conflicts on the open, but it is unavoidable for these
4198 old servers since the only other choice is to go from 100 nanosecond DCE
4199 time and resort to the original setpathinfo level which takes the ancient
4200 DOS time format with 2 second granularity */
4202 CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon, const FILE_BASIC_INFO * data,
4205 struct smb_com_transaction2_sfi_req *pSMB = NULL;
4206 struct smb_com_transaction2_sfi_rsp *pSMBr = NULL;
4209 int bytes_returned = 0;
4210 __u16 params, param_offset, offset, byte_count, count;
4212 cFYI(1, ("Set Times (via SetFileInfo)"));
4213 rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB);
4218 pSMBr = (struct smb_com_transaction2_sfi_rsp *)pSMB;
4220 /* At this point there is no need to override the current pid
4221 with the pid of the opener, but that could change if we someday
4222 use an existing handle (rather than opening one on the fly) */
4223 /* pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener);
4224 pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16));*/
4227 pSMB->MaxSetupCount = 0;
4231 pSMB->Reserved2 = 0;
4232 param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4;
4233 offset = param_offset + params;
4235 data_offset = (char *) (&pSMB->hdr.Protocol) + offset;
4237 count = sizeof (FILE_BASIC_INFO);
4238 pSMB->MaxParameterCount = cpu_to_le16(2);
4239 pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB PDU from sess */
4240 pSMB->SetupCount = 1;
4241 pSMB->Reserved3 = 0;
4242 pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION);
4243 byte_count = 3 /* pad */ + params + count;
4244 pSMB->DataCount = cpu_to_le16(count);
4245 pSMB->ParameterCount = cpu_to_le16(params);
4246 pSMB->TotalDataCount = pSMB->DataCount;
4247 pSMB->TotalParameterCount = pSMB->ParameterCount;
4248 pSMB->ParameterOffset = cpu_to_le16(param_offset);
4249 pSMB->DataOffset = cpu_to_le16(offset);
4251 if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU)
4252 pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO2);
4254 pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO);
4255 pSMB->Reserved4 = 0;
4256 pSMB->hdr.smb_buf_length += byte_count;
4257 pSMB->ByteCount = cpu_to_le16(byte_count);
4258 memcpy(data_offset,data,sizeof(FILE_BASIC_INFO));
4259 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
4260 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
4262 cFYI(1,("Send error in Set Time (SetFileInfo) = %d",rc));
4265 cifs_small_buf_release(pSMB);
4267 /* Note: On -EAGAIN error only caller can retry on handle based calls
4268 since file handle passed in no longer valid */
4275 CIFSSMBSetTimes(const int xid, struct cifsTconInfo *tcon, const char *fileName,
4276 const FILE_BASIC_INFO * data,
4277 const struct nls_table *nls_codepage, int remap)
4279 TRANSACTION2_SPI_REQ *pSMB = NULL;
4280 TRANSACTION2_SPI_RSP *pSMBr = NULL;
4283 int bytes_returned = 0;
4285 __u16 params, param_offset, offset, byte_count, count;
4287 cFYI(1, ("In SetTimes"));
4290 rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
4295 if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
4297 cifsConvertToUCS((__le16 *) pSMB->FileName, fileName,
4298 PATH_MAX, nls_codepage, remap);
4299 name_len++; /* trailing null */
4301 } else { /* BB improve the check for buffer overruns BB */
4302 name_len = strnlen(fileName, PATH_MAX);
4303 name_len++; /* trailing null */
4304 strncpy(pSMB->FileName, fileName, name_len);
4307 params = 6 + name_len;
4308 count = sizeof (FILE_BASIC_INFO);
4309 pSMB->MaxParameterCount = cpu_to_le16(2);
4310 pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find exact max SMB PDU from sess structure BB */
4311 pSMB->MaxSetupCount = 0;
4315 pSMB->Reserved2 = 0;
4316 param_offset = offsetof(struct smb_com_transaction2_spi_req,
4317 InformationLevel) - 4;
4318 offset = param_offset + params;
4319 data_offset = (char *) (&pSMB->hdr.Protocol) + offset;
4320 pSMB->ParameterOffset = cpu_to_le16(param_offset);
4321 pSMB->DataOffset = cpu_to_le16(offset);
4322 pSMB->SetupCount = 1;
4323 pSMB->Reserved3 = 0;
4324 pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION);
4325 byte_count = 3 /* pad */ + params + count;
4327 pSMB->DataCount = cpu_to_le16(count);
4328 pSMB->ParameterCount = cpu_to_le16(params);
4329 pSMB->TotalDataCount = pSMB->DataCount;
4330 pSMB->TotalParameterCount = pSMB->ParameterCount;
4331 if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU)
4332 pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO2);
4334 pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO);
4335 pSMB->Reserved4 = 0;
4336 pSMB->hdr.smb_buf_length += byte_count;
4337 memcpy(data_offset, data, sizeof (FILE_BASIC_INFO));
4338 pSMB->ByteCount = cpu_to_le16(byte_count);
4339 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
4340 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
4342 cFYI(1, ("SetPathInfo (times) returned %d", rc));
4345 cifs_buf_release(pSMB);
4353 /* Can not be used to set time stamps yet (due to old DOS time format) */
4354 /* Can be used to set attributes */
4355 #if 0 /* Possibly not needed - since it turns out that strangely NT4 has a bug
4356 handling it anyway and NT4 was what we thought it would be needed for
4357 Do not delete it until we prove whether needed for Win9x though */
4359 CIFSSMBSetAttrLegacy(int xid, struct cifsTconInfo *tcon, char *fileName,
4360 __u16 dos_attrs, const struct nls_table *nls_codepage)
4362 SETATTR_REQ *pSMB = NULL;
4363 SETATTR_RSP *pSMBr = NULL;
4368 cFYI(1, ("In SetAttrLegacy"));
4371 rc = smb_init(SMB_COM_SETATTR, 8, tcon, (void **) &pSMB,
4376 if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
4378 ConvertToUCS((__le16 *) pSMB->fileName, fileName,
4379 PATH_MAX, nls_codepage);
4380 name_len++; /* trailing null */
4382 } else { /* BB improve the check for buffer overruns BB */
4383 name_len = strnlen(fileName, PATH_MAX);
4384 name_len++; /* trailing null */
4385 strncpy(pSMB->fileName, fileName, name_len);
4387 pSMB->attr = cpu_to_le16(dos_attrs);
4388 pSMB->BufferFormat = 0x04;
4389 pSMB->hdr.smb_buf_length += name_len + 1;
4390 pSMB->ByteCount = cpu_to_le16(name_len + 1);
4391 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
4392 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
4394 cFYI(1, ("Error in LegacySetAttr = %d", rc));
4397 cifs_buf_release(pSMB);
4400 goto SetAttrLgcyRetry;
4404 #endif /* temporarily unneeded SetAttr legacy function */
4407 CIFSSMBUnixSetPerms(const int xid, struct cifsTconInfo *tcon,
4408 char *fileName, __u64 mode, __u64 uid, __u64 gid,
4409 dev_t device, const struct nls_table *nls_codepage,
4412 TRANSACTION2_SPI_REQ *pSMB = NULL;
4413 TRANSACTION2_SPI_RSP *pSMBr = NULL;
4416 int bytes_returned = 0;
4417 FILE_UNIX_BASIC_INFO *data_offset;
4418 __u16 params, param_offset, offset, count, byte_count;
4420 cFYI(1, ("In SetUID/GID/Mode"));
4422 rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
4427 if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
4429 cifsConvertToUCS((__le16 *) pSMB->FileName, fileName,
4430 PATH_MAX, nls_codepage, remap);
4431 name_len++; /* trailing null */
4433 } else { /* BB improve the check for buffer overruns BB */
4434 name_len = strnlen(fileName, PATH_MAX);
4435 name_len++; /* trailing null */
4436 strncpy(pSMB->FileName, fileName, name_len);
4439 params = 6 + name_len;
4440 count = sizeof (FILE_UNIX_BASIC_INFO);
4441 pSMB->MaxParameterCount = cpu_to_le16(2);
4442 pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find exact max SMB PDU from sess structure BB */
4443 pSMB->MaxSetupCount = 0;
4447 pSMB->Reserved2 = 0;
4448 param_offset = offsetof(struct smb_com_transaction2_spi_req,
4449 InformationLevel) - 4;
4450 offset = param_offset + params;
4452 (FILE_UNIX_BASIC_INFO *) ((char *) &pSMB->hdr.Protocol +
4454 memset(data_offset, 0, count);
4455 pSMB->DataOffset = cpu_to_le16(offset);
4456 pSMB->ParameterOffset = cpu_to_le16(param_offset);
4457 pSMB->SetupCount = 1;
4458 pSMB->Reserved3 = 0;
4459 pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION);
4460 byte_count = 3 /* pad */ + params + count;
4461 pSMB->ParameterCount = cpu_to_le16(params);
4462 pSMB->DataCount = cpu_to_le16(count);
4463 pSMB->TotalParameterCount = pSMB->ParameterCount;
4464 pSMB->TotalDataCount = pSMB->DataCount;
4465 pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_BASIC);
4466 pSMB->Reserved4 = 0;
4467 pSMB->hdr.smb_buf_length += byte_count;
4468 data_offset->Uid = cpu_to_le64(uid);
4469 data_offset->Gid = cpu_to_le64(gid);
4470 /* better to leave device as zero when it is */
4471 data_offset->DevMajor = cpu_to_le64(MAJOR(device));
4472 data_offset->DevMinor = cpu_to_le64(MINOR(device));
4473 data_offset->Permissions = cpu_to_le64(mode);
4476 data_offset->Type = cpu_to_le32(UNIX_FILE);
4477 else if(S_ISDIR(mode))
4478 data_offset->Type = cpu_to_le32(UNIX_DIR);
4479 else if(S_ISLNK(mode))
4480 data_offset->Type = cpu_to_le32(UNIX_SYMLINK);
4481 else if(S_ISCHR(mode))
4482 data_offset->Type = cpu_to_le32(UNIX_CHARDEV);
4483 else if(S_ISBLK(mode))
4484 data_offset->Type = cpu_to_le32(UNIX_BLOCKDEV);
4485 else if(S_ISFIFO(mode))
4486 data_offset->Type = cpu_to_le32(UNIX_FIFO);
4487 else if(S_ISSOCK(mode))
4488 data_offset->Type = cpu_to_le32(UNIX_SOCKET);
4491 pSMB->ByteCount = cpu_to_le16(byte_count);
4492 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
4493 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
4495 cFYI(1, ("SetPathInfo (perms) returned %d", rc));
4499 cifs_buf_release(pSMB);
4505 int CIFSSMBNotify(const int xid, struct cifsTconInfo *tcon,
4506 const int notify_subdirs, const __u16 netfid,
4507 __u32 filter, struct file * pfile, int multishot,
4508 const struct nls_table *nls_codepage)
4511 struct smb_com_transaction_change_notify_req * pSMB = NULL;
4512 struct smb_com_ntransaction_change_notify_rsp * pSMBr = NULL;
4513 struct dir_notify_req *dnotify_req;
4516 cFYI(1, ("In CIFSSMBNotify for file handle %d",(int)netfid));
4517 rc = smb_init(SMB_COM_NT_TRANSACT, 23, tcon, (void **) &pSMB,
4522 pSMB->TotalParameterCount = 0 ;
4523 pSMB->TotalDataCount = 0;
4524 pSMB->MaxParameterCount = cpu_to_le32(2);
4525 /* BB find exact data count max from sess structure BB */
4526 pSMB->MaxDataCount = 0; /* same in little endian or be */
4527 /* BB VERIFY verify which is correct for above BB */
4528 pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf -
4529 MAX_CIFS_HDR_SIZE) & 0xFFFFFF00);
4531 pSMB->MaxSetupCount = 4;
4533 pSMB->ParameterOffset = 0;
4534 pSMB->DataCount = 0;
4535 pSMB->DataOffset = 0;
4536 pSMB->SetupCount = 4; /* single byte does not need le conversion */
4537 pSMB->SubCommand = cpu_to_le16(NT_TRANSACT_NOTIFY_CHANGE);
4538 pSMB->ParameterCount = pSMB->TotalParameterCount;
4540 pSMB->WatchTree = 1; /* one byte - no le conversion needed */
4541 pSMB->Reserved2 = 0;
4542 pSMB->CompletionFilter = cpu_to_le32(filter);
4543 pSMB->Fid = netfid; /* file handle always le */
4544 pSMB->ByteCount = 0;
4546 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
4547 (struct smb_hdr *) pSMBr, &bytes_returned, -1);
4549 cFYI(1, ("Error in Notify = %d", rc));
4551 /* Add file to outstanding requests */
4552 /* BB change to kmem cache alloc */
4553 dnotify_req = (struct dir_notify_req *) kmalloc(
4554 sizeof(struct dir_notify_req),
4557 dnotify_req->Pid = pSMB->hdr.Pid;
4558 dnotify_req->PidHigh = pSMB->hdr.PidHigh;
4559 dnotify_req->Mid = pSMB->hdr.Mid;
4560 dnotify_req->Tid = pSMB->hdr.Tid;
4561 dnotify_req->Uid = pSMB->hdr.Uid;
4562 dnotify_req->netfid = netfid;
4563 dnotify_req->pfile = pfile;
4564 dnotify_req->filter = filter;
4565 dnotify_req->multishot = multishot;
4566 spin_lock(&GlobalMid_Lock);
4567 list_add_tail(&dnotify_req->lhead,
4568 &GlobalDnotifyReqList);
4569 spin_unlock(&GlobalMid_Lock);
4573 cifs_buf_release(pSMB);
4576 #ifdef CONFIG_CIFS_XATTR
4578 CIFSSMBQAllEAs(const int xid, struct cifsTconInfo *tcon,
4579 const unsigned char *searchName,
4580 char * EAData, size_t buf_size,
4581 const struct nls_table *nls_codepage, int remap)
4583 /* BB assumes one setup word */
4584 TRANSACTION2_QPI_REQ *pSMB = NULL;
4585 TRANSACTION2_QPI_RSP *pSMBr = NULL;
4589 struct fea * temp_fea;
4591 __u16 params, byte_count;
4593 cFYI(1, ("In Query All EAs path %s", searchName));
4595 rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
4600 if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
4602 cifsConvertToUCS((__le16 *) pSMB->FileName, searchName,
4603 PATH_MAX, nls_codepage, remap);
4604 name_len++; /* trailing null */
4606 } else { /* BB improve the check for buffer overruns BB */
4607 name_len = strnlen(searchName, PATH_MAX);
4608 name_len++; /* trailing null */
4609 strncpy(pSMB->FileName, searchName, name_len);
4612 params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */ ;
4613 pSMB->TotalDataCount = 0;
4614 pSMB->MaxParameterCount = cpu_to_le16(2);
4615 pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */
4616 pSMB->MaxSetupCount = 0;
4620 pSMB->Reserved2 = 0;
4621 pSMB->ParameterOffset = cpu_to_le16(offsetof(
4622 struct smb_com_transaction2_qpi_req ,InformationLevel) - 4);
4623 pSMB->DataCount = 0;
4624 pSMB->DataOffset = 0;
4625 pSMB->SetupCount = 1;
4626 pSMB->Reserved3 = 0;
4627 pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION);
4628 byte_count = params + 1 /* pad */ ;
4629 pSMB->TotalParameterCount = cpu_to_le16(params);
4630 pSMB->ParameterCount = pSMB->TotalParameterCount;
4631 pSMB->InformationLevel = cpu_to_le16(SMB_INFO_QUERY_ALL_EAS);
4632 pSMB->Reserved4 = 0;
4633 pSMB->hdr.smb_buf_length += byte_count;
4634 pSMB->ByteCount = cpu_to_le16(byte_count);
4636 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
4637 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
4639 cFYI(1, ("Send error in QueryAllEAs = %d", rc));
4640 } else { /* decode response */
4641 rc = validate_t2((struct smb_t2_rsp *)pSMBr);
4643 /* BB also check enough total bytes returned */
4644 /* BB we need to improve the validity checking
4645 of these trans2 responses */
4646 if (rc || (pSMBr->ByteCount < 4))
4647 rc = -EIO; /* bad smb */
4648 /* else if (pFindData){
4649 memcpy((char *) pFindData,
4650 (char *) &pSMBr->hdr.Protocol +
4653 /* check that length of list is not more than bcc */
4654 /* check that each entry does not go beyond length
4656 /* check that each element of each entry does not
4657 go beyond end of list */
4658 __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
4659 struct fealist * ea_response_data;
4661 /* validate_trans2_offsets() */
4662 /* BB to check if(start of smb + data_offset > &bcc+ bcc)*/
4663 ea_response_data = (struct fealist *)
4664 (((char *) &pSMBr->hdr.Protocol) +
4666 name_len = le32_to_cpu(ea_response_data->list_len);
4667 cFYI(1,("ea length %d", name_len));
4669 /* returned EA size zeroed at top of function */
4670 cFYI(1,("empty EA list returned from server"));
4672 /* account for ea list len */
4674 temp_fea = ea_response_data->list;
4675 temp_ptr = (char *)temp_fea;
4676 while(name_len > 0) {
4680 rc += temp_fea->name_len;
4681 /* account for prefix user. and trailing null */
4683 if(rc<(int)buf_size) {
4684 memcpy(EAData,"user.",5);
4686 memcpy(EAData,temp_ptr,temp_fea->name_len);
4687 EAData+=temp_fea->name_len;
4688 /* null terminate name */
4690 EAData = EAData + 1;
4691 } else if(buf_size == 0) {
4692 /* skip copy - calc size only */
4694 /* stop before overrun buffer */
4698 name_len -= temp_fea->name_len;
4699 temp_ptr += temp_fea->name_len;
4700 /* account for trailing null */
4703 value_len = le16_to_cpu(temp_fea->value_len);
4704 name_len -= value_len;
4705 temp_ptr += value_len;
4706 /* BB check that temp_ptr is still within smb BB*/
4707 /* no trailing null to account for in value len */
4708 /* go on to next EA */
4709 temp_fea = (struct fea *)temp_ptr;
4715 cifs_buf_release(pSMB);
4722 ssize_t CIFSSMBQueryEA(const int xid,struct cifsTconInfo * tcon,
4723 const unsigned char * searchName,const unsigned char * ea_name,
4724 unsigned char * ea_value, size_t buf_size,
4725 const struct nls_table *nls_codepage, int remap)
4727 TRANSACTION2_QPI_REQ *pSMB = NULL;
4728 TRANSACTION2_QPI_RSP *pSMBr = NULL;
4732 struct fea * temp_fea;
4734 __u16 params, byte_count;
4736 cFYI(1, ("In Query EA path %s", searchName));
4738 rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
4743 if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
4745 cifsConvertToUCS((__le16 *) pSMB->FileName, searchName,
4746 PATH_MAX, nls_codepage, remap);
4747 name_len++; /* trailing null */
4749 } else { /* BB improve the check for buffer overruns BB */
4750 name_len = strnlen(searchName, PATH_MAX);
4751 name_len++; /* trailing null */
4752 strncpy(pSMB->FileName, searchName, name_len);
4755 params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */ ;
4756 pSMB->TotalDataCount = 0;
4757 pSMB->MaxParameterCount = cpu_to_le16(2);
4758 pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */
4759 pSMB->MaxSetupCount = 0;
4763 pSMB->Reserved2 = 0;
4764 pSMB->ParameterOffset = cpu_to_le16(offsetof(
4765 struct smb_com_transaction2_qpi_req ,InformationLevel) - 4);
4766 pSMB->DataCount = 0;
4767 pSMB->DataOffset = 0;
4768 pSMB->SetupCount = 1;
4769 pSMB->Reserved3 = 0;
4770 pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION);
4771 byte_count = params + 1 /* pad */ ;
4772 pSMB->TotalParameterCount = cpu_to_le16(params);
4773 pSMB->ParameterCount = pSMB->TotalParameterCount;
4774 pSMB->InformationLevel = cpu_to_le16(SMB_INFO_QUERY_ALL_EAS);
4775 pSMB->Reserved4 = 0;
4776 pSMB->hdr.smb_buf_length += byte_count;
4777 pSMB->ByteCount = cpu_to_le16(byte_count);
4779 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
4780 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
4782 cFYI(1, ("Send error in Query EA = %d", rc));
4783 } else { /* decode response */
4784 rc = validate_t2((struct smb_t2_rsp *)pSMBr);
4786 /* BB also check enough total bytes returned */
4787 /* BB we need to improve the validity checking
4788 of these trans2 responses */
4789 if (rc || (pSMBr->ByteCount < 4))
4790 rc = -EIO; /* bad smb */
4791 /* else if (pFindData){
4792 memcpy((char *) pFindData,
4793 (char *) &pSMBr->hdr.Protocol +
4796 /* check that length of list is not more than bcc */
4797 /* check that each entry does not go beyond length
4799 /* check that each element of each entry does not
4800 go beyond end of list */
4801 __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
4802 struct fealist * ea_response_data;
4804 /* validate_trans2_offsets() */
4805 /* BB to check if(start of smb + data_offset > &bcc+ bcc)*/
4806 ea_response_data = (struct fealist *)
4807 (((char *) &pSMBr->hdr.Protocol) +
4809 name_len = le32_to_cpu(ea_response_data->list_len);
4810 cFYI(1,("ea length %d", name_len));
4812 /* returned EA size zeroed at top of function */
4813 cFYI(1,("empty EA list returned from server"));
4815 /* account for ea list len */
4817 temp_fea = ea_response_data->list;
4818 temp_ptr = (char *)temp_fea;
4819 /* loop through checking if we have a matching
4820 name and then return the associated value */
4821 while(name_len > 0) {
4825 value_len = le16_to_cpu(temp_fea->value_len);
4826 /* BB validate that value_len falls within SMB,
4827 even though maximum for name_len is 255 */
4828 if(memcmp(temp_fea->name,ea_name,
4829 temp_fea->name_len) == 0) {
4832 /* account for prefix user. and trailing null */
4833 if(rc<=(int)buf_size) {
4835 temp_fea->name+temp_fea->name_len+1,
4837 /* ea values, unlike ea names,
4838 are not null terminated */
4839 } else if(buf_size == 0) {
4840 /* skip copy - calc size only */
4842 /* stop before overrun buffer */
4847 name_len -= temp_fea->name_len;
4848 temp_ptr += temp_fea->name_len;
4849 /* account for trailing null */
4852 name_len -= value_len;
4853 temp_ptr += value_len;
4854 /* no trailing null to account for in value len */
4855 /* go on to next EA */
4856 temp_fea = (struct fea *)temp_ptr;
4862 cifs_buf_release(pSMB);
4870 CIFSSMBSetEA(const int xid, struct cifsTconInfo *tcon, const char *fileName,
4871 const char * ea_name, const void * ea_value,
4872 const __u16 ea_value_len, const struct nls_table *nls_codepage,
4875 struct smb_com_transaction2_spi_req *pSMB = NULL;
4876 struct smb_com_transaction2_spi_rsp *pSMBr = NULL;
4877 struct fealist *parm_data;
4880 int bytes_returned = 0;
4881 __u16 params, param_offset, byte_count, offset, count;
4883 cFYI(1, ("In SetEA"));
4885 rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
4890 if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
4892 cifsConvertToUCS((__le16 *) pSMB->FileName, fileName,
4893 PATH_MAX, nls_codepage, remap);
4894 name_len++; /* trailing null */
4896 } else { /* BB improve the check for buffer overruns BB */
4897 name_len = strnlen(fileName, PATH_MAX);
4898 name_len++; /* trailing null */
4899 strncpy(pSMB->FileName, fileName, name_len);
4902 params = 6 + name_len;
4904 /* done calculating parms using name_len of file name,
4905 now use name_len to calculate length of ea name
4906 we are going to create in the inode xattrs */
4910 name_len = strnlen(ea_name,255);
4912 count = sizeof(*parm_data) + ea_value_len + name_len + 1;
4913 pSMB->MaxParameterCount = cpu_to_le16(2);
4914 pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB size from sess */
4915 pSMB->MaxSetupCount = 0;
4919 pSMB->Reserved2 = 0;
4920 param_offset = offsetof(struct smb_com_transaction2_spi_req,
4921 InformationLevel) - 4;
4922 offset = param_offset + params;
4923 pSMB->InformationLevel =
4924 cpu_to_le16(SMB_SET_FILE_EA);
4927 (struct fealist *) (((char *) &pSMB->hdr.Protocol) +
4929 pSMB->ParameterOffset = cpu_to_le16(param_offset);
4930 pSMB->DataOffset = cpu_to_le16(offset);
4931 pSMB->SetupCount = 1;
4932 pSMB->Reserved3 = 0;
4933 pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION);
4934 byte_count = 3 /* pad */ + params + count;
4935 pSMB->DataCount = cpu_to_le16(count);
4936 parm_data->list_len = cpu_to_le32(count);
4937 parm_data->list[0].EA_flags = 0;
4938 /* we checked above that name len is less than 255 */
4939 parm_data->list[0].name_len = (__u8)name_len;;
4940 /* EA names are always ASCII */
4942 strncpy(parm_data->list[0].name,ea_name,name_len);
4943 parm_data->list[0].name[name_len] = 0;
4944 parm_data->list[0].value_len = cpu_to_le16(ea_value_len);
4945 /* caller ensures that ea_value_len is less than 64K but
4946 we need to ensure that it fits within the smb */
4948 /*BB add length check that it would fit in negotiated SMB buffer size BB */
4949 /* if(ea_value_len > buffer_size - 512 (enough for header)) */
4951 memcpy(parm_data->list[0].name+name_len+1,ea_value,ea_value_len);
4953 pSMB->TotalDataCount = pSMB->DataCount;
4954 pSMB->ParameterCount = cpu_to_le16(params);
4955 pSMB->TotalParameterCount = pSMB->ParameterCount;
4956 pSMB->Reserved4 = 0;
4957 pSMB->hdr.smb_buf_length += byte_count;
4958 pSMB->ByteCount = cpu_to_le16(byte_count);
4959 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
4960 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
4962 cFYI(1, ("SetPathInfo (EA) returned %d", rc));
4965 cifs_buf_release(pSMB);